Торцевой ротор электродвигателя

Изобретение относится к области электромашиностроения. Торцевой ротор электродвигателя, содержащий вал с проводящим диском и замыкающим магнитопроводом, выполненным в виде болтов с головками, обращенными к статору, а с противоположной от статора стороны диска, болты охвачены ферромагнитным тросом, укрепленным с помощью кольца и гаек. Изобретение направлено на сокращение расходов на обмоточные работы с сохранением основных электромагнитных характеристик. 2 ил.

АСИНХРОННАЯ ЭЛЕКТРИЧЕСКАЯ МАШИНА СО СТАТОРОМ И РОТОРОМ ИЗ АМОРФНОЙ СТАЛИ

Изобретение относится к области электротехники и электромашиностроения, в частности к производству асинхронных электрических машин, например для электромобилей, трамваев и других транспортных средств. Технической задачей, на решение которой направлено заявляемое изобретение, является снижение веса и габаритов асинхронных электрических машин. Асинхронный двигатель содержит ротор и статор. Сердечник статора изготовлен из нескольких витков ленты из аморфной стали в виде внешних и внутренних пазов с возможностью укладки в них обмоток, а сердечник ротора - в виде цилиндра из электротехнической стали, покрытого несколькими слоями ленты из аморфной стали с высокой магнитной проницаемостью. 6 ил.

ГИБРИДНЫЙ АСИНХРОННЫЙ ЭЛЕКТРОДВИГАТЕЛЬ С САМОВЫРАВНИВАЮЩИМСЯ ВНУТРЕННИМ РОТОРОМ НА ОСНОВЕ ПОСТОЯННЫХ МАГНИТОВ

Изобретение относится к области электротехники, в частности к гибридному двигателю, работающему при пуске в режиме асинхронного индукционного двигателя, а затем переходящему в синхронный режим. Технический результат – повышение эффективности. Гибридный асинхронный электродвигатель включает в себя индуктивный ротор и выполненный с возможностью независимого вращения ротор на основе постоянных магнитов. Индуктивный ротор представляет собой ротор типа "беличья клетка" для работы в режиме асинхронного электродвигателя при пуске. Ротор на основе постоянных магнитов смещен радиально или в осевом направлении и имеет реализуемое с возможностью изменения соединение с индуктивным ротором через муфту. По мере приближения количества оборотов в минуту индуктивного ротора к синхронному значению или достижения количества оборотов в минуту индуктивного ротора синхронного значения соединение между индуктивным ротором и ротором, выполненным на основе постоянных магнитов, увеличивается до тех пор, пока два ...

СИНХРОННЫЙ ГЕНЕРАТОР БЕЗРЕДУКТОРНОЙ ВЕТРОЭНЕРГЕТИЧЕСКОЙ УСТАНОВКИ

Изобретение относится к электротехнике, а именно к конструкции синхронного генератора с наружным ротором для безредукторной ветроэнергетической установки. Синхронный генератор с наружным ротором содержит статор и состоящий из нескольких частей ротор с независимым возбуждением в виде сегментов, представляющих сердечники с катушками. Изобретение относится к ветроэнергетической установке, содержащей такой генератор, а также к транспортировочной системе для доставки синхронного генератора безредукторной ветроэнергетической установки к месту сборки. Технический результат состоит в облегчении разделения и стыковки частей генератора, транспортировки, сборки и проведения контроля на месте установки. 4 н. и 11 з.п. ф-лы, 9 ил.

ДВИГАТЕЛЬ С РЕАКТИВНЫМ РОТОРОМ

Изобретение относится к области электротехники и касается особенностей конструктивного выполнения двигателя (1) с реактивным ротором с ротором (3) и статором (6), у которого ротор (3) имеет роторные сегменты (10), которые в свободно стоящих областях сформированы, по существу, в виде прямоугольников, торцевые стороны (12) которых представлены участками круга, причем каждый переход торцевой стороны (12) в расположенные напротив плоские стороны (13) в плане выполнен скругленным, переходы в направлении периферийной окружности выполнены соответственно по другую сторону каждого прямолинейного удлинения плоских сторон (13), а радиус упомянутого округления лежит между 0,3 и 2 мм. Предусмотрено также, что двигатель с реактивным ротором балансируется путем выборки материала на плоских сторонах роторных сегментов, и ротор состоит из большого числа расположенных друг за другом тонких металлических листов. Ротор имеет диск (4) датчика, при этом каждому роторному сегменту (10) придан элемент (18), образующий ...

КЛЕТКА РОТОРА АСИНХРОННОГО ЭЛЕКТРОДВИГАТЕЛЯ С НИЗКИМ ПУСКОВЫМ ТОКОМ

Изобретение относится к области электротехники и предназначено для применения в мощных асинхронных электродвигателях, работающих с источниками питания ограниченной мощности. Технический результат изобретения состоит в обеспечении возможности прямого пуска электродвигателей повышенной мощности от сети ограниченной мощности. Клетка ротора асинхронного электродвигателя содержит стержни и медные короткозамыкающие кольца. Медные короткозамыкающие кольца с размерами поперечного сечения 25×44 мм со стороны верхних и наружных боковых поверхностей закрыты экранами из ферромагнитной стали, выполненными в виде колец толщиной 2 мм с поперечным сечением Г-образной формы. 3 ил., 2 табл.

ДИСКОВЫЙ ЭЛЕКТРОГЕНЕРАТОР

Изобретение относится к области электротехники, в частности к дисковым электрогенераторам. Технический результат – повышение стабильности вращения якоря. Дисковый электрогенератор содержит первый корпус и второй корпус, а также первый комплект магнитов и второй комплект магнитов. Плоскость, где расположен первый комплект магнитов, параллельна плоскости, где расположен второй комплект магнитов, и однонаправленное магнитное поле формируется между первым комплектом магнитов и вторым комплектом магнитов. Якорь расположен параллельно к плоскости, где расположен первый комплект магнитов и размещен между первым комплектом магнитов и вторым комплектом магнитов. Якорь содержит панель, на которой расположены многочисленные катушки, неподвижно установленные в центре панели через равные интервалы по кругу на одной плоскости. Катушки имеют спиральную форму. Многочисленные катушки электрически соединены друг с другом посредством контуров на панели. 6 з.п. ф-лы, 9 ил.

РОТОР ВЫСОКООБОРОТНОЙ СИНХРОННОЙ ЭЛЕКТРИЧЕСКОЙ МАШИНЫ

Полезная модель относится к области электротехники, в частности к электрическим машинам. Техническая проблема состоит в предотвращении возникновения концентрации напряжений в отдельных областях обоймы, удерживающей магнитную систему на сердечнике ротора. Предложенный ротор электрической машины содержит сердечник, имеющий центральное отверстие для установки вала, и обойму, окружающую сердечник. Наружная поверхность сердечника выполнена в виде призматической поверхности, образующей основные грани сердечника, на каждой из которых расположен постоянный магнит, находящийся в контакте с внутренней поверхностью обоймы. Между каждыми двумя соседними основными гранями сердечника выполнен соединительный паз, углубляющийся в радиальном направлении. Внутренняя поверхность обоймы имеет соединительные выступы, каждый из которых входит в соединительный паз. Толщина обоймы на каждом ее элементе, расположенном напротив основной грани сердечника, увеличивается с продвижением от середины данного элемента ...

Индукторная электрическая машина на основе высокотемпературных сверхпроводников

Изобретение относится к электроэнергетике, а именно к индукторным электрическим машинам с комбинированным возбуждением на основе высокотемпературных сверхпроводников (ВТСП). Индукторная электрическая машина содержит дисковый статор с обмоткой якоря, выполненной из катушек в форме трапеций, равномерно распределенных по окружности на поверхности диска статора, дисковый ротор с трапецеидальными отверстиями, в которых установлены трапецеидальные стопки пластин из ВТСП лент второго поколения, расположенную на статоре обмотку возбуждения, выполненную из двух кольцевых осесимметричных катушек, разделенных дистанционными прокладками. На цилиндрической боковой и плоских торцевых поверхностях диска ротора установлен бандаж. Вал машины выполнен из немагнитного материала. Технический результат - повышение удельных массогабаритных и энергетических показателей, а также эксплуатационной надежности, обеспечение компактности и технологичности выполнения электрической машины. 4 з.п. ф-лы, 3 ил.

ЛИСТ ЭЛЕКТРОТЕХНИЧЕСКОЙ СТАЛИ С ПЕЧАТНОЙ ПЕРЕМЫЧКОЙ

Изобретение относится к листу электротехнической стали для электрической машины, основное тело которого представляет собой одиночный лист намагничиваемого материала с несколькими выемками. Технический результат - повышение магнитной эффективности, в частности, листового металла ротора, повышение числа оборотов ротора с сохранением стабилизации по отношению к центробежной силе, подавление магнитного потока рассеяния с повышением эффективности электрической машины в целом. Для этого обеспечен лист (9) электротехнической стали для электрической машины, основное тело которого представляет собой одиночный лист (5) из намагничиваемого материала, причем одиночный лист (5) имеет несколько выемок (1). По меньшей мере одна перемычка (10) предусмотрена в каждой из выемок (1), причем перемычка (10) напечатана способом 3D-печати из ненамагничиваемого материала. 4 н. и 6 з.п. ф-лы, 5 ил.

Электродвигатель Андронова

АСИНХРОННАЯ ЭЛЕКТРИЧЕСКАЯ МАШИНА СО СТАТОРОМ И РОТОРОМ ИЗ АМОРФНОЙ СТАЛИ

ЛАМИНИРОВАННЫЙ СЕРДЕЧНИК МАГНИТНОГО ПОДШИПНИКА И СПОСОБ КОНСТРУИРОВАНИЯ ТАКОГО ЛАМИНИРОВАННОГО СЕРДЕЧНИКА

... 1. Ламинированный сердечник (1-2) статора или ротора комбинированного радиально-упорного магнитного подшипника с распределенными постоянными магнитами или распределенными электрическими токами, в котором вышеупомянутый ламинированный сердечник (1-2) содержит плотно упакованный пакет из отдельных плоских пластин (10-11-12), изготовленных из магнитомягкого материала, которые имеют топологическое свойство, заключающееся в том, что они гомотопически эквивалентны шару для создания, по меньшей мере, одного физического прерывания (9) контура циркуляции вихревых токов в плоскости пластин ламинированного сердечника, при этом вышеупомянутый плотно упакованный пакет обладает топологическим свойством, заключающемся в том, что он гомотопически эквивалентен кольцу для обеспечения магнитной симметрии, а, по меньшей мере, одно физическое прерывание (9) заполнено электрически изолирующим материалом (14), характеризующийся тем, что- вышеупомянутое, по меньшей мере, одно физическое прерывание (9) в каждой ...

ВРАЩАЮЩАЯСЯ ЭЛЕКТРИЧЕСКАЯ МАШИНА, В ЧАСТНОСТИ АСИНХРОННАЯ МАШИНА ДВОЙНОГО ПИТАНИЯ С ДИАПАЗОНОМ МОЩНОСТИ ОТ 20 МВА ДО 500 МВА

... 1. Вращающаяся электрическая машина, в частности, асинхронная машина (10) двойного питания с диапазоном мощности от 20 МВА до 500 МВА, содержащая ротор (11, 11а, 12, 14), который вращается относительно оси (19) машины, причем ротор концентрически окружен статором (15, 16) и содержит шихтованный сердечник (12) ротора, и вал (11а), где шихтованный сердечник (12) ротора несет на себе роторную обмотку, которая расположена далее снаружи и соединена через соединители (18) с контактными кольцами (17), расположенными далее изнутри на конце вала (11а), при этом соединители (18) содержат механические соединители (18b), идущие под прямыми углами к валу (11а), для поглощения сил, возникающих в результате центробежного ускорения, и подсоединены, во-первых, к лобовой части (14) обмотки ротора, а во вторых, опираются на вспомогательный обод (13, 22) на шихтованном сердечнике (12) ротора, отличающаяся тем, что обеспечены дополнительные электрические соединители (18а) для действительной передачи тока, причем ...

MOTOR

Motor, der einen Stator, der Wicklungen aufweist, und einen Rotor umfasst, der einem magnetischen Drehfeld unterworfen wird, das durch Liefern von Antriebsstrom zu den Wicklungen erzeugt wird. Die Wicklungen umfassen in Serie geschaltete erste Wicklungen und zweite Wicklungen und die ersten Wicklungen und zweiten Wicklungen werden gleichzeitig durch den Antriebsstrom angeregt. Der Rotor umfasst eine Mehrzahl von Rotorteilen, die Seite an Seite in der axialen Richtung angeordnet sind. Jeder der multiplen Rotorteile umfasst Magnetpole, die Permanentmagnete aufweisen, und Teile, die magnetischen Kraftfluss gestatten. An einer Drehposition des Rotors, wobei die Magnetpole den ersten Windungen entgegengesetzt sind, sind die magnetischen Kraftfluss gestattenden Teile den zweiten Wicklungen entgegengesetzt und gestatten die Erzeugung eines Verkettungskraftflusses aufgrund eines schwachen Feldstroms in den zweiten Wicklungen. Die multiplen Rotorteile weisen dieselbe Anzahl von Magnetpolen auf und ...

Rotor für eine Synchron-Reluktanzmaschine

Die Erfindung betrifft einen Rotor (16) für eine Synchronmaschine, insbesondere eine Synchron-Reluktanzmaschine, wobei der Rotor weichmagnetische Rotorbleche (15) aufweist, aus denen Aussparungen (11) als magnetische Flusssperren ausgenommen, beispielsweise ausgestanzt oder ausgeschnitten sind, welche mit einem ferromagnetischen, insbesondere einem hartmagnetischen Füllmaterial zur Reduzierung von Streuflüssen vollständig ausgefüllt, vorzugsweise ausgespritzt oder ausgegossen werden. Die Erfindung betrifft ferner ein Verfahren zum Herstellen eines solchen Rotors.

Redundante elektrische Maschine zum Antreiben eines Vortriebsmittels

Die Erfindung betrifft eine insbesondere redundante elektrische Maschine zum Antreiben eines Vortriebsmittels mit erhöhter Ausfallsicherheit. Die Maschine umfasst bspw. zwei aus jeweils einem Statorwicklungssystem und einen Läufer bestehende Teilmaschinen, wobei die beiden Läufer drehfest auf einer gemeinsame Welle angeordnet sind, über die letztlich das Vortriebsmittel in Bewegung versetzt wird. Weiterhin ist eine Verschiebevorrichtung vorgesehen, die im Fehlerfall in einem der Statorwicklungssysteme derart wirkt, dass für die entsprechende fehlerhafte Teilmaschine der Luftspalt zwischen dem betroffenen Statorwicklungssystem und dem zugehörigen Läufer derart vergrößert wird, dass die elektromagnetische Wechselwirkung zwischen diesen Bauteilen unterbunden wird.

Elektromagnetische Maschine

Rotor für eine elektrische Rotationsmaschine, elektrische Rotationsmaschine, und Verfahren zum Herstellen eines Rotors für eine elektrische Rotationsmaschine

Bereitgestellt wird ein Rotor (100) für eine elektrische Rotationsmaschine, der aufweist: einen integral geschichteten N-Pol-Kern (3n), in dem mehrere geschichtete Zahnabschnitte (31n), die in Kontakt mit N-Pol-Seitenabschnitten von angrenzenden der ersten Permanentmagneten (4) gelangen, miteinander integriert sind; und einen integral geschichteten S-Pol-Kern (3s), in dem mehrere geschichteten Zahnabschnitte (31s), die in Kontakt mit S-Pol-Seitenabschnitten von angrenzenden der ersten Permanentmagneten (4) gelangen, miteinander integriert sind, und in dem der integral geschichtete N-Pol-Kern (3n) und der integral geschichtete S-Pol-Kern (3s) um eine Drehwelle (1) herum, die eine nichtmagnetische Außenumfangsfläche hat, so angeordnet sind, dass die ersten Permanentmagnete (4) und ein Spalt (6) dazwischen angeordnet ist.

Verfahren zur Herstellung einer Rotorwelle und Rotorwelle

Verfahren zur Herstellung einer Rotorwelle (10), insbesondere für ein elektrisches Aggregat, umfassend die Schritte:a) Bereitstellen eines einen Welleneinschub (14.2) umfassenden Zapfens (14);b) Herstellen eines hohlen, mindestens an einem ersten Ende zum Aufnehmen des Zapfens (14) offenen, als ein Drehkörper ausgebildeten, Rotorwellenkörpers (12), wobei ein Übermaß zwischen mindestens einer Welleneinschub-Außenfläche (14.3) und mindestens einer Rotorwellenkörper-Innenfläche (12.3) besteht; undc) Einschieben des Welleneinschubs (14.2) in den Rotorwellenkörper (12) zum Befestigen des Zapfens (14) an den Rotorwellenkörper (12), dadurch gekennzeichnet, dass die Rotorwellenkörper-Innenfläche (12.3) und/oder die Welleneinschub-Außenfläche (14.3) beim Einschieben des Welleneinschubs (14.2) in den Rotorwellenkörper (12) plastisch verformt wird, wodurch ein Formschluss zwischen dem Welleneinschub (14.2) und dem Rotorwellenkörper (12) bewirkt wird, dass die Verbindung zwischen dem Welleneinschub ...

Elektromotor und dessen Rotor

Die vorliegende Anmeldung offenbart einen Elektromotor sowie dessen Rotor. Das mittlere Teil der mehreren ersten Schichtplatten eines Endes in axialer Richtung des Rotorkernkörpers weist eine zentrale Öffnung auf, wobei die Rotorwelle ohne Kontakt mit den ersten Schichtplatten durch die zentrale Öffnung geführt ist. Das Rotorwellenlager des Elektromotors befindet sich zumindest teilweise innerhalb der zentralen Öffnung der ersten Schichtplatten. Der Rotor weist einen Hohlraum zur Aufnahme des Wellenlagers auf. Gemäß der Konzeption der vorliegenden Anmeldung kann ein leichtes und miniaturisiertes Produkt hergestellt werden.

ANKER MIT BLECHLAMINATEN UND VERFAHREN ZUR HERSTELLUNG DIESES ANKERS

Motor driven rotary hollow cylinder for centrifuges - has wires embedded in induction region consisting of cobalt-vanadium steel with boron coating

The rotating hollow cylinder for centrifuges rotates about its axis under a motor drive and is encircled halfway along its length by the circular stator assembly, as in 2252505, the cylinder forming simultaneously the motor rotor. The wires embedded in the cylinder in the region of the stator assembly consist at least partly of cobalt-vanadium steel coated with boron. The wire material safeguards strength maintenance and guards against significant drop in specific strength.

Elektrische Maschine und hybridelektrisches Fahrzeug

Die Erfindung betrifft eine elektrische Maschine und ein hybridelektrisches Fahrzeug.Die elektrische Maschine umfasst zumindest eine erste Gruppe supraleitender Spulen, welche angeordnet sind, einen magnetischen Fluss zumindest entlang eines u-förmigen Verlaufs zu führen.Das hybridelektrische Luftfahrzeug ist insbesondere ein Flugzeug und weist eine solche elektrische Maschine auf.

Annular rotor metal sheet for use in rotor metal sheet package of electromotor in cutting tool, has guide-type projection parts that are at large distance from center of gravity of inner edge than support-type projection parts

The sheet (1) has an outer edge (R) and an inner edge (r) with a center of gravity (s). Guide-type projection parts (2, 2a, 2b) and support-type projection parts (3, 3a, 3b) are provided at the inner edge, where the guide-type projection parts are at a large distance (dF) from the center of gravity than the support-type projection parts. The guide-type projection parts tapers to the center of gravity and/or include two edge sections (a1, a2) that are arranged parallel to each other. The guide-type projection parts are geometrically congruent with the support-type projection parts. Independent claims are also included for the following: (1) a rotor metal sheet package for an electromotor (2) an electrical machine having a rotor (3) a cutting tool for manufacturing a rotor metal sheet.

Design improvements for flux switching machines

PERMANENT MAGNET ROTOR

Generator assembly

Disclosed in the present utility model is a generator assembly, which aims to solve the problem that existing generators are high in cost and low in power generation efficiency. The generator assembly comprises a screw rod, a housing and a multi-polarity magnetic ring. A first inner hub is installed in the housing; a protective ring is sleeved outside the multi-polarity magnetic ring; a stator rubber-coated power generation coil assembly is installed in the multi-polarity magnetic ring; the screw rod sequentially penetrates the first inner hub, the multi-polarity magnetic ring, the protective ring, the stator rubber-coated power generation coil assembly and a second inner hub; and the stator rubber-coated power generation coil assembly comprises a first toothed outer iron housing, a single-strand winding coil assembly, a second toothed outer iron housing and a circuit board. The generator assembly uses a single-strand winding coil assembly and uses the internally-closed and externally-toothed ...

MASSIVER ROTOR FUER EINE ASYNCHRONMASCHINE

ELEKTRISCHER MIKROMOTOR

TIFF 00000006.TIF 294 208 ...

A FIBER-REINFORCED ROTOR

Magnetic field element

Demagnetization of a magnet is prevented. A field element (1a) comprises a field magnet portion (2) and a coupling portion (3), and is rotatable about the axis of rotation (92) extending along a predetermined direction (91). The field magnet portion (2) has a magnet (11) and magnetic body plates (21, 22). The magnet (11) has first and second magnetic pole faces (11a, 11b) exhibiting different polarities in the predetermined direction (91). The magnetic body plates (21, 22) are provided, respectively, on the first and second magnetic pole faces (11a, 11b). The field magnet portions (2) are arranged annularly along the circumferential direction (93) around the axis of rotation (92) apart from one another along the circumferential direction (93). The coupling portion (3) is composed of a nonmagnetic body and couples the field magnet portions (2) with each other.

Field element

Field Element Core

Method for mounting a magnetic pole and associated rotor

The present invention relates to a method for mounting at least one magnetic pole of a rotor of a motor of a synchronous electrical rotating machine from elementary elements, the rotor comprising a hub. The method comprises the following successive steps: a) forming (36) a set by fixing at least two elementary elements to each other with an electrical insulator being interposed therebetween, said elementary elements being magnetisable; b) magnetising (70) the magnetisable set; c) fixing (72) the magnetised set to the hub, said magnetised set forming at least a portion of the magnetic pole. Figure 3 80 50 FIG.4 Lb FIG.5 b' L 58 1 l 3 ...

Synchronous-generator pole stack

The invention relates to a synchronous-generator rotor pole stack, comprising a plurality of pole-stack sheets offset from each other, a pole shaft (410), and a pole head (420) having at least three pole-head segments (423a, 423b). A front edge of each of the at least three pole-head segments (423a, 423b) is arranged at an angle to the pole shaft (410).

Disc power generator

A disc power generator comprises a first housing (110) and a second housing (120). The first housing and the second housing are locked and fixed together to enclose a receiving space. The disc power generator further comprises a first magnet set (130) and a second magnet set (131) provided in the receiving space. A plane where the first magnet set (130) is located is parallel to a plane where the second magnet set (131) is located, and a unidirectional magnetic field is formed between the first magnet set and the second magnet set (131). An armature (140) parallel to the plane where the first magnet set (130) is located is provided between the first magnet set (130) and the second magnet set (131). The armature comprises a board (141). On the board (141), with the board (141) as the center, multiple coils (160) arranged at equal intervals in a circumferential form on a same plane are fixed mounted. The coils are in a spiral form, the plane where the coils are located is parallel to the ...

PULLEY ASSEMBLY FOR AN ELECTROMAGNETIC POWER TRANSMITTING ASSEMBLY

ROLLING MAGNETIC FRICTION ELECTRICITY GENERATOR

SYNCHRONOUS RELUCTANCE MACHINE

The invention relates to a synchronous reluctance machine (20), in particular a motor or a generator with a power of greater than 300kW, comprising a stator (1) and a rotor (3) which is spaced apart from said stator by an air gap (19), which is rotatably mounted about an axis (18) and of which the laminations which are arranged axially one behind the other each have an anisotropic magnetic structure which is formed by flux blocking sections and flux conducting sections, and wherein the flux blocking sections and flux conducting sections form poles of the rotor (3), wherein these flux blocking sections form axially running channels and allow axial air flow, wherein the laminated core of the rotor (3) is axially subdivided into at least two component laminated cores (30, 31, 32, 33), wherein there are radial cooling gaps (6) between the poles in the region of the q axis as viewed in the circumferential direction and between the component laminated cores (30, 31, 32, 33) as viewed axially.

ROTOR FOR AN ELECTRICAL MACHINE

A rotor (10) for an axial-flux electrical machine (12) is provided. The rotor (10) comprises an annular disc-shaped central frame (20) formed of a ferromagnetic material and having first and second opposing surfaces (26, 28). Each of the first and second opposing surface (26, 28) has shaped protrusions (40) extending therefrom. The rotor (10) further comprises a first and a second outer frame (22, 24) formed of a non-ferromagnetic, electrically conducting material. Each outer frame (22, 24) has an inner periphery portion (32) and an outer periphery portion (34) and a plurality of bars (36) galvanically connecting the inner and outer periphery portions (32, 34). Gap portions (38) are defined between adjacent bars (36) and the inner and outer periphery portions (32, 34). The gap portions (38) are shaped complementary to the shaped protrusions (40) of the central frame (20).

ELECTRIC MOTOR COMPRISING AN INDUCTOR WITH A SUPERCONDUCTING ELEMENT INCORPORATED BETWEEN COILS

The invention relates to an electric motor comprising a magnetic field induction device (10) and an induced field device (11), rotating one relative to the other, characterized in that the induction device comprises a set of two conducting coils (B11, B12) wound around an axis (C), currents (i) flowing in the same direction through said coils, and a central piece (Psuper), placed between the two coils, comprising a superconducting element lying in a plane inclined to the axis (C) of the coils and channelling the magnetic field produced by the coils on either side of the inclined plane.

ROTOR ASSEMBLY AND MOTOR CONSTRUCTION AND METHOD OF MAKING SAME

Rotor für schnellaufende Maschinen, insbesondere Turbogeneratoren.

Einrichtung zum Zusammenhalten mehrteiliger Stücke, insbesondere bei Rotoren elektrischer Maschinen.

Aus Ringelementen bestehender, mehrteiliger Polradkranz einer elektrischen Maschine.

Mehrteiliger, aus Blechsegmenten zusammengesetzter Rotorkörper, insbesondere elektrischer Maschinen.

Geräuschlose elektrische Maschine.

Aus einzelnen Blechsegmenten geschichteter Läufer einer elektrischen Grossmaschine

Aus einzelnen Blechsegmenten geschichteter Läufer einer elektrischen Grossmaschine

Impeller means with fuse to an impeller axially of imported rotor blades.

Eine Laufradanordnung weist ein Laufrad (52) mit mehreren Schwalbenschwanzschlitzen (54) auf, die in Umfangsrichtung um eine Umfangsfläche des Laufrads (52) beabstandet sind. Das Laufrad (52) weist auch mehrere Aussparungen (80) auf, die in der Umfangsfläche ausgebildet sind. Die Laufradanordnung weist wenigstens eine Laufschaufel (38) mit einer einteiligen Abdeckung (66), einem Schaufelblatt (64), einem Schwalbenschwanz (60) und einer Plattform (62) mit einer ersten Fläche und einer gegenüberliegenden zweiten Fläche auf. Die erste Fläche der Plattform (62) weist eine Keilnut auf. Die Keilnut weist eine gegenüberliegende verjüngte Fläche auf, die unter einem ersten Winkel bezogen auf die erste Fläche der Plattform (62) ausgerichtet ist. Die Laufradanordnung weist ferner einen Feststellkeil mit einer ersten Fläche, die im Wesentlichen parallel zu der ersten Fläche der Plattform (62) ausgerichtet ist, und einer gegenüberliegenden zweiten Fläche auf, die unter dem ersten Winkel bezogen auf ...

Rotary one electrical machine, in particular doubles fed asynchronous machine in the capacity range between 20 MVA and 500 MVA.

Die Erfindung geht aus von einer rotierenden elektrischen Maschine, insbesondere einer doppelt gespeisten Asynchronmaschine im Leistungsbereich zwischen 20 MVA und 500 MVA, welche einen um eine Maschinenachse drehenden, von einem Stator konzentrisch umgebenen Rotor (14) mit einem Rotorblechkörper und einer Welle umfasst, welcher Rotorblechkörper eine weiter aussen angeordnete Rotorwicklung trägt, die über Verbinder (18a, 18b) mit weiter innen am Ende der Welle angeordneten Schleifringen verbunden ist. Eine flexible und sichere Verbindung wird dadurch erreicht, dass die Verbinder (18a, 18b) zur Aufnahme von durch die Zentrifugalbeschleunigung auftretenden Kräften rechtwinklig zur Welle verlaufende mechanische Verbinder (18b) aufweisen, welche einerseits mit einem Rotorwickelkopf (14) der Rotorwicklung verbunden sind und sich andererseits an einem Hilfsrim (13) am Rotorblechkörper (12) abstützen.

Eine Rotorstruktur für eine elektrische Reluktanzmaschine.

Ein Rotor für eine elektrische Reluktanzmaschine sollte einerseits für eine maximale Anisotropie der magnetischen Reluktanz für unterschiedliche Richtungen des Rotors und andererseits für ein maximales Maß an mechanischer Retention optimiert werden. Das Erfüllen dieser beiden widersprüchlichen Anforderungen wird durch Stapeln von mindestens zwei unterschiedlichen Typen von Blechen (1): A und B erreicht, wobei sich Magnetfluss-Leitstreifen (2) oder Magnetfluss-Sperrstreifen (3) bei der zwei Typen überlappen und dort starre Befestigungen (92), (93) verwendet werden können, um eine mechanische Halterung zu gewährleisten.

Automatic torque-adjustable speed changing motor for electric tricycle

Vacuum explosionproof and gasproof motor

Unit type axial flux switch reluctance motor

ENCLOSURE FOR ROTOR MADE UP Of COMPOSITE RINGS

Cette enceinte (20) pour rotor dans un générateur comprenant le rotor, des enroulements de rotor et un stator, comprend une pluralité d'anneaux composites (22, 24) adjacents les uns des autres le long d'une dimension de longueur du rotor afin de contenir les enroulements de rotor sur le rotor, les anneaux comprenant chacun au moins deux couches (26, 28) choisies dans le groupe constitué essentiellement des métaux, des stratifiés à base de fibres de verre et des stratifiés à base de fibres de graphite.

ENCLOSURE FOR ROTOR MADE UP Of COMPOSITE RINGS

Laminated rotor composed of sheet segments separated for large electric machines

전기 기계

... 본 발명은 회전자(8; 50; 76) 및 고정자(9; 29; 77)를 구비한 전기 기계에 관한 것으로, 상기 회전자(8; 50; 76) 및/또는 고정자(9; 29; 77)는 실질적으로 사각형 횡단을 갖는 적어도 하나의 박판 패킷(2; 11; 32; 72) 및 박판 스트립(1)을 포함하고, 이 경우 박판 스트립(1)은 코일 형태로 와인딩된다.

로터 및 이를 포함하는 세탁기

... 본 발명은, 회전축으로부터 반경 방향으로 방사된 형태를 가진 반경 리브 및 상기 회전축을 중심으로 원주 방향으로 형성된 원주 리브를 포함하는 로터에 있어서, 상기 로터의 전면은 표면이 상기 회전축으로 갈수록 볼록하도록 일정 곡률로 이루어진 것을 특징으로 하는 로터를 제공한다.

전기 기계 및 전기 기계 회전자

... 전기 기계 회전자들 및 전기 기계들이 개시된다. 전기 기계 회전자들은 샤프트, 회전자 상에 자극을 형성하도록 배열된 한 쌍의 영구 자석들, 극철 및 한 쌍의 대향하는 극간철들을 포함할 수 있다. 극철은 극간철들에 대해 그리고 샤프트에 대해 자석들의 쌍을 보유할 수 있다. 전기 기계 회전자들은 회전자 및 고정자 철 및 적어도 하나의 코일을 포함하는 전기 기계 내로 조립될 수 있다. 몇몇 예들에서, 샤프트는 중공이고, 비자성이고, 파이버-보강되고 그리고/또는 적어도 부분적으로 복합 재료로부터 제조될 수 있다.

로터 및 이를 포함하는 모터

... 본 발명은 로터 코어; 상기 로터 코어에 권선되는 코일; 및 상기 로터 코어의 상부에 배치되는 커버;를 포함하며, 상기 커버는, 상기 로터 코어에 배치되는 본체; 상기 본체에 형성되며, 반경 방향으로 긴 길이를 갖는 제1 홀; 및 상기 제1 홀에 결합되는 웨이트부를 포함하는 로터 및 이를 포함하는 모터에 관한 것이다. 이에 따라, 상기 로터는 반경 방향으로 웨이트를 이동시켜 로터의 밸런싱 작업을 수행할 수 있다 ...

LAMINATED STRUCTURE OF ROTOR CORE

The present invention relates to a laminated structure of a rotor core, which can minimize magnetic leakage flux in a spoke-type permanent magnet motor. The laminated structure of a rotor core comprises: first core layers each of which are formed by laminating first core plates each configured to include a base formed to have a shaft through hole at a center thereof and have a ring shape, a plurality of yokes arranged in a circumferential direction of the base and spaced apart from one another to form a plurality of magnet insertion portions for accommodation of magnets, and a plurality of bridges adapted to connect the base and the yokes; and second core layers each of which are formed by laminating second core plates each configured to include a plurality of yokes identical to that of the first core plate in a state exclusive of the base and the bridges. In this case, the first core layers and the second core layers are alternately laminated. Accordingly, provided is effects in which ...

ELECTRICAL MACHINE WITH CIRCUMFERENTIALLY SKEWED ROTOR POLES OR STATOR COILS

AXIALLY STACKED SYNCHRONOUS RELUCTANCE MOTOR FOR IMPROVING TORQUE AND POWER FACTOR AND DESIGN METHOD THEREOF

The present invention relates to an axial stacked synchronous reluctance motor for improving torque and power factor. The synchronous reluctance motor comprises: a stator having teeth radially protruding in a circumferential direction, and a slot formed between adjacent teeth, and having an accommodation area formed at the center thereof; and a rotor having a round shape and accommodated in the accommodation area to rotate. The rotor includes: a shaft positioned at the center to rotate the rotor; a spider made of a non-magnetic metal material having a shaft hole into which the shaft is inserted, at the center thereof, a lamination surface forming a concave space between a plurality of blades extending to an end of the rotor, and a fastener formed on the stacked surface toward the shaft hole; a plurality of cores sequentially stacked in an axial direction on the lamination surface; an insulation sheet positioned between the lamination surface and the core and between the cores; a pole holder ...

ROTOR ASSEMBLY AND MOTOR INCLUDING SAME

The present invention relates to a rotor assembly. The rotor assembly includes: a first rotor body including a first protrusion protruding from the outer peripheral surface; a second rotor body including a second protrusion unit protruding from the outer peripheral surface and arranged in a different position from that of the first protrusion unit with respect to the peripheral direction when the first rotor body is laminated thereon and coupled thereto; a first insulator including a first outer guide formed on the exterior of the body with respect to the radial direction of the first rotor body, and a body surrounding the first protrusion unit; and a second insulator including a body surrounding the second protrusion unit, and a second outer guide formed on the exterior of the body with respect to the radial direction of the second rotor body. When the second rotor body is laminated on and coupled to the first rotor body, the first and second outer guides are configured to come in contact ...

Nested stator structure for DC motor

The present invention provides a nested stator structure for a DC motor is applicable to a DC motor and includes an outer stator and an inner stator. The outer stator, mounted in the housing of the DC motor, includes outer magnets fixed to the inner wall of the housing along the circumferential direction of the housing. Each two adjacent outer magnets are spaced apart and have opposite polarities. The inner stator, mounted in the outer stator, has its front and rear ends fixed to the front and rear ends of the housing respectively, is provided with inner magnets along the circumferential direction of the housing, and is spaced from the outer stator by a rotation space, where a hollow rotor is received. When supplied with electricity, the hollow rotor generates electromagnetic fields repelling the inner and outer magnets and is hence rotated, driving an output element simultaneously to output a rotating force.

Rotor for induction torque motor and induction torque motor

A rotor (1) for an induction torque motor according to the present invention comprises an axial body (1a) and a cylindrical body (1b) which is coupled to the axial body (1a) coaxially with the core of the axial body (1a) and is formed with a soft magnetic material wherein the specific resistance is 0.4 [[mu]ohmsm] or less and the specific magnetic permeability is 1000 to 50000. An induction torque motor (TM) according to the present invention comprises the rotor (1) for an induction torque motor. Therefore, the rotor (1) for an induction torque motor and the induction torque motor (TM) according to the present invention can further improve performance.

Linear motor armature and linear motor

A linear motor armature according to an embodiment includes an armature coil and a cooling jacket. The cooling jacket is provided to surround the armature coil and has an internal space into which a refrigerant is supplied. The cooling jacket is formed in a thin plate shape having a structure in which a channel for supplying the refrigerant is provided in a multiple manner in its thickness direction.

LAMINATED CORE FOR A MAGNETIC BEARING AND METHOD FOR CONSTRUCTING SUCH A LAMINATED CORE

The core inside a combined radial-axial magnetic bearing is stacked with coated laminations each equipped with at least one radial cut. These cuts prevent the inducement of circulating currents caused by varying axial control fluxes through the central hole of the stack. Magnetic symmetry is preserved by pivoting every lamination with respect to the previous one over a particular angle. This arrangement not only reduces the losses in the bearing, but improves the performance of the axial channel as well.

MOTOR HAVING ELECTROMAGNETIC ROTOR

The present invention relates to a motor including: a rotor housing (1); a stator assembly (2) located inside the rotor housing (1); a first core(3) located inside the stator assembly (2); a second core (4) located at the center of the rotor housing (1); and a coil housing (5) located inside the rotor housing (1) and having a space portion (53) formed at the inside thereof.

SWITCHED RELUCTANCE MOTOR AND VEHICLE

A switched reluctance motor, of an outer rotor type, includes an inner stator having a plurality of salient poles, around which coils of five phases are wound in concentrated winding, and an outer rotor having a plurality of rotor yokes that are formed separately, each being magnetized to have two magnetic poles generated in the rotor yoke, and having a rotor body that is constructed of a non-magnetic conductive material for retaining the plurality of rotor yokes. The switched reluctance motor is configured to excite corresponding salient poles, by simultaneous use of coils of two phases among the coils of five phases.

ROTARY ELECTRIC MACHINE AND CONTROLLER FOR SUCH AN ELECTRIC MACHINE

A stator has a stator core, and stator windings wound around either the stator core or teeth of the stator. A rotor has a rotor core, windings wound around either the rotor core or teeth of the rotor, and magnetic auxiliary poles disposed between the teeth adjacent in a circumferential direction. The rotor further has diodes that are magnetic characteristic adjustment portions that cause the magnetic characteristic that occurs in the teeth by induced electromotive force produced in the rotor windings to vary in the circumferential direction of the rotor core. 1. A rotary electric machine comprising: a stator core;', 'stator teeth disposed at a plurality of locations on the stator core that are spaced from each other in a circumferential direction of the stator; and', 'a plurality of stator windings wound around at least one of the stator core and the stator teeth; and, 'a stator includes a rotor core;', 'rotor teeth disposed at a plurality of locations on the rotor core that are spaced from each other in a circumferential direction of the rotor;', 'a plurality of rotor windings wound around at least one of the rotor core and the rotor teeth;', 'a magnetic auxiliary pole disposed between adjacent two of the rotor teeth that are adjacent to each other in the circumferential direction of the rotor; and', 'a magnetic characteristic adjustment portion that causes a magnetic characteristic that occurs inside the rotor windings or in the plurality of rotor teeth by induced electromotive force produced in the rotor windings to vary in the circumferential direction of the rotor core., 'a rotor that is disposed so as to face the stator and that includes2. The rotary electric machine according to claim 1 , wherein:the auxiliary pole is protruded from the rotor core toward the stator; andthe auxiliary pole includes a distal end portion that is magnetic and a base portion that is nonmagnetic.3. The rotary electric machine according to claim 1 , wherein:the auxiliary pole is ...

ROTOR, MOTOR, REINFORCEMENT RING TOOL AND MOUNTING METHOD THEREFOR

A rotor, a motor, a reinforcement ring tool and a mounting method therefor are disclosed. A reinforcement ring tool may be mounted on the outer circumference of a rotor of a motor, the reinforcement ring tool comprising two or more separate components and two or more connecting members. The two or more connecting members correspond to the two or more separate components, and the two or more separate components are connected to each other by means of the two or more connecting members so as to form an annular body. At least two of the two or more connecting members are movable connecting members, and corresponding separate components are movably coupled to each other by means of the movable connecting members such that the reinforcement ring tool may be detachably engaged at the outer circumference of the rotor.

ROTATING ELECTRIC MACHINE, IN PARTICULAR DOUBLE-FED ASYNCHRONOUS MACHINE WITH A POWER RANGE OF BETWEEN 20 MVA AND 500 MVA

The invention proceeds from a rotating electric machine, in particular a double-fed induction machine in the power range between 20 MVA and 500 MVA, which comprises a rotor that rotates about a machine axis, is concentrically surrounded by a stator, and has a rotor plate body and a shaft, which rotor plate body bears a rotor winding that is arranged further outwards and is connected by means of connectors to slip rings that are arranged further inwards at the end of the shaft. A flexible and secure connection is achieved in that the connectors have mechanical connectors that run at right angles to the shaft to absorb forces arising owing to centrifugal acceleration, which mechanical connectors are connected on one side to a rotor winding head of the rotor winding and are supported on the other side on an auxiliary rim on the rotor plate body.

ELECTRIC MACHINE

An electric machine comprise a first carrier having an array of electromagnetic elements and a second carrier having electromagnetic elements defining magnetic poles, the second carrier being arranged to move relative to the first carrier. An airgap is provided between the first carrier and the second carrier. The electromagnetic elements of the first carrier include posts, with slots between the posts, one or more electric conductors in each slot, the posts of the first carrier having a post height in mm. The first carrier and the second carrier together define a size of the electric machine. The magnetic poles having a pole pitch in mm. The size of the motor, pole pitch and post height are selected to fall within a region in a space defined by size, pole pitch and post height that provides a benefit in terms of force or torque per weight per excitation level.

ROTOR STRUCTURE FOR ROTARY ELECTRIC MACHINE

A rotor structure for a rotary electric machine in which an inner surface of a hollow rotor core and an outer surface of a shaft inserted into a hole of the rotor core are fitted together by mutual engagement between a projection and a recess to compose a rotor, the rotor structure including: a first retainer brought into contact with one end of the rotor core; and a second retainer brought into contact with a surface of the first retainer opposite to a surface in contact with the rotor core so as to fix the first retainer and the rotor core to the shaft, wherein a coefficient of static friction of a first sliding surface between the first retainer and the second retainer is smaller than any other sliding surface provided in the rotor.

Гибридный электрический двигатель с самовыравнивающимся ротором с постоянными магнитами и короткозамкнутым ротором

Изобретение относится к области электротехники, в частности к гибридным асинхронным двигателям. Технический результат – повышение эффективности двигателя. Гибридный асинхронный двигатель содержит закрепленный статор, независимо вращающийся внешний ротор и внутренний ротор, прикрепленный к валу двигателя. В одном варианте реализации внешний ротор содержит расположенные на расстоянии друг от друга первые стержни и постоянные магниты, а внутренний ротор содержит расположенные на расстоянии друг от друга вторые стержни. В другом варианте реализации внешний ротор содержит расположенные с угловыми интервалами на расстоянии друг от друга первые стержни без постоянных магнитов, а внутренний ротор содержит постоянные магниты, а также может содержать расположенные с угловыми интервалами на расстоянии друг от друга вторые стержни. Внешний ротор первоначально ускоряется вследствие взаимодействия вращающегося магнитного поля статора с первыми стержнями. При ускорении внешнего ротора до синхронных оборотов ...

СПОСОБ РОТАЦИОННОЙ ВЫТЯЖКИ И ВАЛ РОТОРА

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СПОСОБ ИЗГОТОВЛЕНИЯ РОТОРА ДЛЯ ВРАЩАЮЩЕЙСЯ ЭЛЕКТРИЧЕСКОЙ МАШИНЫ

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ЭНЕРГОЭФФЕКТИВНАЯ ОБРАЩЁННАЯ АСИНХРОННАЯ МАШИНА

Изобретение относится к электротехнике, преимущественно к изготовлению обращенных вращающихся электрических машин с короткозамкнутым ротором, которые могут использоваться, например, в качестве энергоэффективных двигателей мотор-колес. Техническим результатом изобретения является повышение теплоотвода от ротора. Энергоэффективная обращенная вращающаяся асинхронная машина включает корпус, внешний короткозамкнутый ротор и статор с совмещенными обмотками. При этом корпус и одно из короткозамкнутых колец беличьего колеса выполнены как одно целое. Существует вариант машины, в которой стержни БК ее ротора выполнены с наклоном продольной оси их поперечного сечения относительно радиального направления в сторону вращения ротора. 1 з.п. ф-лы.

ВЫСОКООБОРОТНАЯ ЭЛЕКТРИЧЕСКАЯ МАШИНА ИНДУКТОРНОГО ТИПА

Полезная модель относится к области электротехники, в частности - к конструкции высокооборотных электрических машин индукторного типа, и может быть использована в области установок генерации электрической энергии, построенных на базе высокооборотных микротурбин. Техническим результатом полезной модели является разработка высокооборотной электрической машины индукторного типа, обладающей высокими эксплуатационными характеристиками и высоким уровнем надежности. Технический результат полезной модели достигается с помощью высокооборотной электрической машины индукторного типа, содержащей статор, состоящий из магнитопровода статора и активных пакетов статора, неявнополюсный ротор и катушку возбуждения, установленную внутри магнитопровода статора и охватывающую неявнополюсный ротор, который представляет собой нешихтованную цилиндрическую деталь с 2-мя продольными сквозными отверстиями, заполненными немагнитным материалом, а активные пакеты не имеют явно выраженной полюсной структуры, в пазах ...

РОТОР ЭЛЕКТРИЧЕСКОГО УСТРОЙСТВА

... 1. Ротор электродвигателя с постоянными магнитами (10), имеющий основную ось (D) и содержащий пластинчатый сердечник (2), ограниченный первой и второй торцевыми стенкам (4, 5) и боковой поверхностью (6), и имеющий отверстие (7) для соединения с валом (8) электродвигателя и множество продольных пазов (9) для установки магнитов (10), при этом ротор также содержит изогнутую пружину (18), расположенную между каждым магнитом (10) и соответствующим пазом (9) для закрепления положения магнитов (10) в пазах (9), причем сердечник (2) имеет канавку (19) для каждой изогнутой пружины (18), при этом канавка (19) проходит в направлении, параллельном основной оси (D), между первой и второй торцевыми стенками (4, 5), причем каждая пружина (18) продольно вставлена в канавку (19), отличающийся тем, что каждая канавка (19) расположена в середине соответствующего паза (9). ! 2. Ротор по п.1, отличающийся тем, что упругий элемент (18) работает в направлении (D1), которое является, по существу, радиальным относительно ...

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РОТОР ДЛЯ ЭЛЕКТРИЧЕСКОЙ МАШИНЫ

Коллекторная реактивная электрическая машина

Полезная модель относится к области электротехники и, в частности, к универсальным коллекторным реактивным электрическим машинам и может найти применение в качестве силовых исполнительных органов электроприводов промышленных механизмов.Технический результат обеспечивает улучшение использования объема активных частей электрической машины.Выполнение магнитопровода полюсов индуктора с продольной шихтовкой (вдоль оси устройства) из ленты композитной структуры, состоящей из магнитопроводящего и немагнитного слоев, позволяет добиться равномерного тангенциального распределения немагнитных промежутков в полюсах индуктора, ортогональных к направлению замыкания магнитного потока поперечной реакции якоря, способствующего максимальному снижению влияния реакции якоря на продольный поток электрической машины, повышению коэффициента явнополюсности (отношение магнитных проводимостей по продольной и поперечной осям полюса) устройства и, как следствие, повышению использования активного объема устройства в целом. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 181 130 U1 (51) МПК H02K 23/64 (2006.01) H02K 23/42 (2006.01) H02K 19/06 (2006.01) H02K 1/22 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК H02K 23/64 (2018.02); H02K 23/42 (2018.02); H02K 19/06 (2018.02); H02K 1/22 (2018.02) (21)(22) Заявка: 2018110999, 27.03.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: 05.07.2018 (45) Опубликовано: 05.07.2018 Бюл. № 19 2024165 C1, 30.11.1994. SU 207832 A3, 22.12.1967. US 5777416 A1, 07.07.1998. US 5703421 A1, 30.12.1997. (54) КОЛЛЕКТОРНАЯ РЕАКТИВНАЯ ЭЛЕКТРИЧЕСКАЯ МАШИНА (57) Реферат: Полезная модель относится к области немагнитного слоев, позволяет добиться электротехники и, в частности, к универсальным равномерного тангенциального распределения коллекторным реактивным электрическим немагнитных промежутков в полюсах индуктора, машинам и может найти применение в качестве ортогональных к направлению замыкания ...

Высокооборотный индукторный двигатель

Полезная модель относится к области электротехники и электромашиностроения и может быть использована в качестве источника электрической энергии для задач, где требуется от ротора двигателя больше миллиона оборотов в минуту.Технический результат: обеспечение быстроходности высокооборотного индукторного двигателя.Сущность полезной модели в том, что в пазах статора обмотка уложена из литцендрата, а зубцы статора выполнены клиновидной формы, при этом ротор выполнен с лабрисообразной сердцевиной, окаймленный бандажом из титана и набран из пластин стали со вставками из алюминия, имеющими каплевидную форму.

Rotor and method of manufacturing the rotor

A rotor of the invention includes a core made of laminated steel sheets and formed with a rotation-transmitting-member mounting end face (a wall surface of a through hole for shaft) extending over a lamination direction and a rotation transmitting member (a shaft) mounted to the rotation-transmitting-member mounting end face of the core. The core is formed with a welding end face (a wall surface of a through hole for welding) extending over the lamination direction and in a position adjacent to a rotation-transmitting-member mounting end face. A welded trace is formed in the welding end face, extending to the rotation transmitting member and over the lamination direction of the core. The invention can easily achieve size reduction and weight reduction of a rotary machine and manufacture a rotor in the reduced number of working processes.

ALTERNATOR FOR VEHICLE

An alternator for a vehicle includes: a rundel-type rotor including a cylindrical portion around which a field coil is wound, a pair of plate-shaped end plate portions which are arranged such that the end plate portions face both end surfaces of the cylindrical portion in the axial direction in an opposed manner, first claw portions which extend parallel to a rotary axis from one end plate portion, and second claw portions which extend parallel to the rotary axis from the other end plate portion, and a stator which is arranged on an outer peripheral side of the rotor with a rotary gap therebetween so as to face the rotor in an opposed manner, and has a laminated core on which an armature coil is wound. The between claw magnetic poles of the first and second claw portions is set to a optimum gap range to maximize output current. 1. An alternator for a vehicle comprising:a rundel-type rotor which includes a cylindrical portion around which a field coil is wound, first and second plate-shaped end plate portions which are arranged such that the end plate portions face both end surfaces of the cylindrical portion in the axial direction in an opposed manner, a plurality of first claw portions which extend parallel to a rotary axis in the direction from the first end plate portion to the second end plate portion, and a plurality of second claw portions which extend parallel to the rotary axis in the direction from the second end plate portion to the first end plate portion, and are arranged alternately in the circumferential direction with respect to the plurality of first claw portions; anda stator which is arranged on an outer peripheral side of the rundel-type rotor with a rotary gap therebetween so as to face the rundel-type rotor in an opposed manner, and has a laminated core on which an armature coil is wound,a size of a gap between a claw magnetic pole of the first claw portion and a claw magnetic pole of the second claw portion which are arranged adjacent to each ...

Electrical Machine With Circumferentially Skewed Rotor Poles Or Stator Coils

A rotor for an electrical machine including a plurality of pole sections with adjacent poles within each of the pole sections being distanced by a first uniform pole pitch. Adjacent poles belonging to different pole sections are distanced by a second (smaller) pole pitch at one end of each pole section, and by a third (larger) pole pitch at the other end of each pole section. Alternatively, a corresponding adjustment of coil pitches can be done in a stator of an electrical machine. 1. A rotor for an electrical machine , the rotor comprising npole sections , nbeing an even number of at least four , each pole section comprising npoles , nbeing an integer greater than one , adjacent poles within each of the pole sections being distanced by a first pole pitch with a value α ,{'sub': 2', '3', '1', '2', '3, 'adjacent poles belonging to different pole sections being distanced by a second pole pitch with a value αat one end of each pole section, and by a third pole pitch with a value αat the other end of each pole section, values α, αand αall being different,'}characterized in that the rotor is divided into a plurality of discrete segments along interfaces between different pole sections.2. The rotor according to claim 1 , wherein the value αis smaller than the value α claim 1 , and the value αis greater than the value α.3. The rotor according to claim 1 , wherein the poles are aligned in a substantially symmetrical manner about the centre axis of the rotor.4. The rotor according to claim 3 , wherein all the rotor segments have a substantially identical construction.5. A stator for an electrical machine claim 3 , the stator comprising ncoil sections claim 3 , nbeing an even number of at least four claim 3 , each coil section comprising nconductors claim 3 , nbeing an integer greater than one claim 3 , adjacent conductors within each of the coil sections being distanced by a first coil pitch with a value β claim 3 ,{'sub': 2', '3', '1', '2', '3, 'characterized in that ...

Reinforced magnet

A magnet that includes a composite body and at least one reinforcing element. The reinforcing element is embedded within the body and increases the radial strength of the body. As a result, the magnet is able to rotate at higher speeds without fracturing. Additionally, methods of manufacturing the magnet are described.

Fuel cell system, motor, air compressor, pump, and method of designing motor

A fuel cell system includes a fuel gas supply/discharge mechanism, an oxidative gas supply/discharge mechanism, and a coolant circulation mechanism that cools a fuel cell. A motor employed in an air compressor of the fuel gas supply/discharge mechanism includes a generally circular cylindrical rotor. The axial length of the rotor is related to its diameter such that the ratio is approximately equal to a maximum value satisfying a relationship: Ta≦Tm, where Ta denotes a permissible torque of the motor, and that Tm denotes a maximum torque for which a request is to be made to the motor.

ROTOR HAVING DIVIDABLE CORE FOR ELECTRIC MOTOR AND PRODUCTION METHOD THEREOF

A rotor having a dividable core for an electric motor, and a production method thereof. A rotor has a generally annular supporting member; a plurality of shaft portions positioned on the supporting member in a circumferential direction at regular intervals, the shaft portions extending generally parallel to a rotation axis of the rotor; and a plurality of divided cores each having a hole portion which is fitted to each shaft portion. By annularly connecting the divided cores, a generally annular dividable core for the rotor is formed. Each divided core has connecting portions at both circumferential ends thereof, and each connecting portion is configured to be connected to a connecting portion of a neighboring divided core while the divided core is fitted to the shaft portion. 1. A rotor of an electric motor , comprising:a generally annular supporting member;a plurality of shaft portions positioned on the supporting member in a circumferential direction at regular intervals, the shaft portions extending generally parallel to a rotation axis of the rotor; anda plurality of divided cores each having a hole portion which is fitted to each of the shaft portions and a connecting portion configured to be connected to a connecting portion of a neighboring divided core,wherein each of the divided cores is connected to the neighboring divided core by means of the connecting portion while being fitted to the shaft portion so that a generally annular core is formed.2. The rotor as set forth in claim 1 , wherein the connecting portion of the divided core is configured to be connected to the connecting portion of the neighboring divided core by rotating the divided core about the shaft portion.3. The rotor as set forth in claim 1 , further comprising a cylindrical member which is fitted to an inner portion of the generally annular core.4. The rotor as set forth in claim 3 , wherein an outer diameter of the cylindrical member is larger than an inner diameter of the generally ...

Motor and rotor thereof

A rotor having an improved structure capable of achieving enhanced durability is disposed in a motor, the rotor including a sleeve having a shaft hole, through which a motor shaft extends, rotor cores spaced apart from one another in a circumferential direction of the rotor, and permanent magnets each disposed between adjacent ones of the rotor cores such that the permanent magnets are arranged in a radial manner about the sleeve. First and second cover plates may be disposed at opposite sides of the permanent magnets in an axial direction. Each of the first and second cover plates may include a shaft receiving hole to receive the motor shaft. The rotor may include a plurality of support members each having a magnet support portion arranged to support an outer end of a corresponding one of the permanent magnets in a radial direction of the rotor.

SPINNING PROCESSING METHOD AND ROTOR SHAFT

In a spinning processing method of processing cylindrical parts includes: joining at least two sheets of metal plates by bring together sheet surfaces of the metal plates; rotating the metal plates using a rotating shaft that is arranged perpendicular to the sheet surfaces of the metal plates; applying a separating and deforming force at a coupling position on a periphery of the at least two sheets of the metal plates to separate and deform the metal plates while the at least two sheets of the metal plates rotate; and applying a cylinder forming force to at least one of the metal plates to form a cylinder along the rotating shaft. 1. A spinning processing method of processing cylindrical parts , the spinning processing method comprising:joining at least two sheets of metal plates by bring together sheet surfaces of the metal plates;rotating the metal plates using a rotating shaft that is arranged perpendicular to the sheet surfaces of the metal plates;applying a separating and deforming force at a coupling position on a periphery of the at least two sheets of the metal plates to separate and deform the metal plates while the at least two sheets of the metal plates rotate; andapplying a cylinder forming force to at least one of the metal plates to form a cylinder along the rotating shaft.2. The spinning processing method according to claim 1 , whereinthe joining of the at least two sheets of the metal plates includes joining two first metal plates and a second metal plate with the second metal plate being made of a material that is different from that of the first metal plates and the second metal plate being disposed between the first metal plates,the applying of the separating and deforming force is further accomplished by applying the separating and deforming force at the coupling position on the periphery of the first metal plates arranged on both sides and joined to the second metal plate,the applying cylinder forming force is further accomplished by applying ...

ROTATING ELECTRICAL MACHINE, IN PARTICULAR FOR A MOTOR VEHICLE STARTER

A rotating electric machine comprising a rotor () comprising a body () on the periphery of which are installed conductors () forming the winding, and a stator () positioned around the rotor () comprising a magnetized structure extending along a circumference of the stator (). The body () of the rotor () is made partially of plastic, in the region of the teeth which conventionally separate the notches near the air gap, on the periphery of the armature. A modified structure of magnets of Halbach type is made with magnets of NdFeB type to reduce the thickness of the stator (), to increase the radius (R) of the rotor () so as to position all the conductors () on the periphery of the body () of the rotor () on one and the same layer at a diameter of maximum value. 234412. Machine according to claim 1 , characterized in that the body () of the rotor is made of plastic material in the region of the teeth which separate the notches () close to the air gap (E) claim 1 , on the outer periphery of the rotor ().3485049. Machine according to claim 2 , characterized in that the set of metal plates () comprises on its outer periphery anchorage means claim 2 , such as grooves () claim 2 , in order to retain the outer part () made of plastic.44924849. Machine according to claim 3 , characterized in that the outer part made of plastic material () has at each of its axial ends a rim which faces towards the interior in the direction of the axis (X) of the rotor () claim 3 , with the inner set of metal plates () being sandwiched between the rims claim 3 , such that the outer part () is blocked axially by the set of metal plates claim 3 , thus forming a brace between the rims.550. Machine according to claim 4 , characterized in that the conductors () are positioned on a single layer.63634. Machine according to claim 5 , characterized in that the conductors () are embedded in the plastic of the rotor body ().736. Machine according to claim 6 , characterized in that the conductors () have ...

Hybrid excitation rotating electrical machine

A hybrid excitation machine comprising a rotor having first and second rotor cores with a gap between in an axial direction, wherein first magnetic poles excited by a permanent magnet and second magnetic poles not excited by the permanent magnet are alternately arranged in a circumferential direction in each rotor core. The first magnetic poles of the first and second rotor cores have different polarities, and the first magnetic poles of one rotor, core face the second magnetic poles of the other rotor core in the axial direction. A stator generating a magnetic field rotating the motor is placed radially outward of the rotor and an exciting coil exciting the second magnetic poles is placed in the gap, wherein the stator has, in the axial direction, first stator cores on both sides and a second stator core having lower magnetic resistance than the first stator core, in a center.

ALTERNATOR RATIOS

A vehicle alternator has a center rotational axis and includes a substantially round stator having a plurality of coils, each coil being wound a number of times N around the stator. The vehicle alternator includes a rotor having a spool with a field coil wound thereon and having an opposed pair of core segments defining a number of interleaved pole portions P, each segment having a hub radially extending a distance R from the center axis, each pole portion having an outer pole face a radial distance R from the center axis. The ratio RR is in a range of 0.60 to 0.63, and N*P is in a range of 50 to 60. 1. A vehicle alternator having a center rotational axis , comprising:a substantially round stator having a plurality of coils, each coil being wound a number of times N around the stator; and a spool with a field coil wound thereon; and', {'b': 2', '1, 'an opposed pair of core segments defining a number of interleaved pole portions P, each segment having a hub radially extending a distance R from the center axis, each pole portion having an outer pole face a radial distance R from the center axis;'}], 'a rotor having{'b': 2', '1, 'wherein R/R is in a range of 0.60 to 0.63, and wherein N*P is in a range of 50 to 60.'}2. The vehicle alternator of claim 1 , wherein N is 4.3. The vehicle alternator of claim 2 , wherein P is 14.421. The vehicle alternator of claim 3 , wherein R/R is approximately 0.61.5. The vehicle alternator of claim 1 , wherein the spool has a pair of opposed star members defining P star portions that are substantially aligned with ones of the pole portions for electrically insulating the pole portions from the field coil.6. The vehicle alternator of claim 5 , wherein the star members are formed of a stamped sheet material.7. The vehicle alternator of claim 6 , wherein the stamped sheet material is a laminate.8. The vehicle alternator of claim 7 , wherein the laminate includes a layer of Nomex.9. The vehicle alternator of claim 5 , wherein the spool ...

Electrical Machines and Electrical Machine Rotors

Electrical machine rotors and electrical machines are disclosed. The electrical machine rotors may include a shaft, a pair of permanent magnets arranged to form a magnetic pole on the rotor, a pole iron, and a pair of opposed inter-pole irons. The pole iron may retain the pair of magnets against the inter-pole irons and relative to the shaft. The electrical machine rotors may be assembled into electrical machines that include the rotor and a stator that includes a stator iron and at least one coil. In some examples, the shaft may be hollow, nonmagnetic, fiber-reinforced, and/or fabricated at least partially from a composite material. 1. An electrical machine rotor , comprising:a hollow nonmagnetic shaft;a pair of permanent magnets arranged to form a magnetic pole on the rotor;a pole iron disposed between the pair of permanent magnets and secured to the shaft; anda pair of opposed inter-pole irons, wherein the pole iron urges each of the pair of magnets against a corresponding one of the pair of opposed inter-pole irons.2. The rotor of claim 1 , wherein the shaft is fabricated at least partially from a fiber-reinforced composite material.3. The rotor of claim 2 , wherein at least a portion of the shaft is filament or tape wound onto a substantially cylindrical mandrel.4. The rotor of claim 3 , wherein the shaft includes interior and exterior surfaces and a hole extending from the interior surface to the exterior surface claim 3 , wherein the hole is fabricated by a pin extending from the mandrel when the portion of the shaft is filament or tape wound onto the mandrel.5. The rotor of claim 1 , wherein the pole iron and inter-pole irons comprise axially laminated layers.6. The rotor of claim 5 , comprising at least one axially extending member supporting the axially laminated layers.7. The rotor of claim 1 , wherein each of the permanent magnets has a substantially rectangular cross-section and is obliquely oriented with respect to an exterior surface of the shaft.8. ...

PERMANENT MAGNET ELECTRICAL GENERATOR AND METHOD OF PRODUCING ELECTRICAL ENERGY

Permanent magnet electric generators and methods of generating electrical energy are provided. The generators include two rack assemblies each including concentric circular cylindrical cores having circular arrangements of permanent magnets and electrical conductors. The two rack assemblies are axially engaged wherein magnets of the concentric circular cylindrical cores repel adjacent magnets and thereby rotate the cylindrical cores. The rotation of the adjacent magnets in the cores induces an electric current within the electrical conductors, which can be extracted and used in a broad range of applications. Various mechanisms adapted to engage and disengage the two rack assemblies are provided, including the introduction of a vacuum into the generator housing. Methods of generating electrical energy and electrical cores having permanent magnets and conductors are also disclosed. 1. A permanent-magnet electric generator comprising: a plurality of circular arrangements of permanent magnets, the plurality of circular arrangements of permanent magnets spaced at a plurality of elevations within each first circular cylindrical core; and', 'a plurality of electrical conductors, each of the plurality of conductors positioned about at least some of the plurality of the permanent magnets of the curricular arrangement of permanent magnets;, 'a first rack assembly comprising a plurality of first concentric circular cylindrical cores, each of the plurality of the first circular cylindrical cores mounted for rotation and comprising a plurality of circular arrangements of permanent magnets, the plurality of circular arrangements of permanent magnets spaced at a plurality of elevations within each second circular cylindrical core; and', 'a plurality of electrical conductors, each of the plurality of conductors positioned about at least some of the plurality of the permanent magnets of the curricular arrangement of permanent magnets; and, 'a second rack assembly comprising a ...

Bonded magnet and motor provided with same

A bonded magnet of the present invention has a configuration that it contains at least a magnetic powder and a binder, and in which the magnetic powder and the binder are mixed such that a content of the magnetic powder is 98 mass % or more and a content of the binder is more than 0 mass % and 2 mass % or less. Accordingly, a bonded magnet having good magnetic characteristics and high heat resistance can be attained.

Brushless motor

A brushless motor includes a first rotor core, a second rotor core, and a field magnet member. The first rotor core includes primary projecting pieces arranged along a circumferential direction at equal intervals. The second rotor core has the same shape as the first rotor core, and includes secondary projecting pieces arranged along the circumferential direction at equal intervals. The secondary projecting pieces are positioned between the primary projecting pieces that are adjacent to one another in the circumferential direction. The field magnet member is arranged between the first rotor core and the second rotor core. The field magnet member is magnetized along an axial direction to generate primary magnetic poles in the primary projecting pieces, and generate secondary magnetic poles in the secondary projecting pieces. A rotor includes the first rotor core, the second rotor core, and the field magnet member.

Brushless motor and electric device mounted with same

A brushless motor capable of high speed rotation by field weakening operation is designed to reduce torque ripple at a maximum load point with current phase advance so that the torque ripple at the maximum load point is 1 to 1.5 times the torque ripple at a low speed load point.

HYBRID FIELD ELECTRIC MOTOR

A hybrid field electric motor includes a rotor with a rotor core rotating about an axial axis and having a rotor surface with at least one sloping edge face and a radial edge face. The stator includes a stator core and radial pole faces spaced by a gap from the radial edge face of the rotor for radially directing flux into the rotor core. The stator has sloping pole faces spaced from the sloping edge face of the rotor core for flux directed into the rotor core at an angle between radial and axial. The rotor core and/or stator core are made of a soft magnetic composite material for flux in inure than one plane in the core(s). 1. A hybrid field electric motor comprising:a rotor with a rotor core rotating about an axial axis and having a rotor surface with at least one sloping edge face and a radial edge face;a stator including a stator core and radial pole faces spaced by a gap from the radial edge face of the rotor for radially directing flux into the rotor core, the stator further including sloping pole faces spaced from the sloping edge face of the rotor core for flux directed into the rotor core at an angle between radial and axial; andthe rotor core and/or stator core made of a soft magnetic composite material for flux in more than one plane in said core(s).2. The motor of in which the rotor is inside the stator and said rotor surface with at least one sloping edge face and a radial edge face are on an outer periphery of the rotor.3. The motor of in which the stator is inside the rotor and the rotor surface with at least one sloping edge face and a radial edge face are on an inner periphery of the rotor.4. The motor of in which the rotor includes a permanent magnet on said sloping edge face and said radial edge face.5. The motor of in which the rotor includes a sloping edge face on opposite sides of the radial edge face.6. The motor of in which the stator includes a sloping pole face for each sloping edge face of the rotor core.7. The motor of in which the stator ...

MOTOR FOR COMPRESSOR PUMPS AND RELATED COMPRESSOR ASSEMBLY

An electric motor is provided, including a stator having two electromagnetic poles diametrically opposite each other, a rotor including a rotor core configured for being rotatably mounted with a shaft for rotation relative to the stator. The rotor core is formed by stacking a plurality of laminations each of which has a central hole and a plurality of generally radially extending teeth. The stator and the rotor have geometric attributes such that: R=G*0.9968, wherein G is defined as thickness of a field yoke, and R is defined as a distance from an outside edge of a central hole to bases of the teeth. A compressor assembly is also provided that employs the present motor. 1. An electric motor , comprising:a stator having two electromagnetic poles diametrically opposite each other;a rotor including a rotor core configured for being rotatably mounted with a shaft for rotation relative to said stator, said rotor core being formed by stacking a plurality of laminations each of which has a central hole and a plurality of generally radially extending teeth; and{'b': 1', '1, 'said stator and said rotor have geometric attributes such that: R=G*0.9968, wherein G is defined as thickness of a field yoke, and R is defined as a distance from an outside edge of said central hole to bases of said teeth.'}2. An electric motor , comprising:a stator having two electromagnetic poles diametrically opposite each other;a rotor including a rotor core configured for being rotatably mounted with a shaft for rotation relative to said stator, said rotor core being formed by stacking a plurality of laminations each of which has a central hole and a plurality of generally T-shaped teeth;said plurality of generally T-shaped, radially extending teeth form salient poles of said rotor core; and{'b': 1', '1, 'said stator and said rotor have geometric attributes such that: R=G*0.9968, wherein G is defined as thickness of a field yoke, and R is defined as a distance from an outside edge of said central ...

INTERNAL ROTOR MOTOR

An internal rotor motor, in particular an electronically commutated internal rotor motor, has a multi-pole stator () and a rotor lamination stack () mounted rotatably relative to said stator; furthermore a central bore is provided in the rotor lamination stack, the rotor lamination stack comprising individual laminations () whose respective central openings () comprise radially inwardly projecting first portions or tabs () into which a rotor shaft () is press-fitted, and said central openings () comprise, in angular sectors between the first portions (), second portions () that, in the assembled state, are spaced away from the outside of the shaft (), at least some (axially central) ones of the individual laminations () of the rotor lamination stack () being arranged with an angular offset from one another. 1. An internal rotor motor , comprising:{'b': '28', 'a multi-pole stator ();'}{'b': 37', '52', '54', '56', '47', '18, 'a rotor lamination stack (; , , ), mounted for rotation relative to said stator, said stack consisting of a plurality of generally annular individual plates or laminations, each having a respective central opening (), said respective central openings aligning to define a central bore in the rotor lamination stack, adapted to receive a rotor shaft ();'}{'b': 41', '50', '18', '50', '51', '37', '52', '54', '56', '18, 'wherein inner peripheries of said individual laminations () are defined by radially inwardly projecting first portions or tabs () into which said rotor shaft () is axially press-fitted, and, in angular sectors between the radially inwardly projecting first portions (), second portions () that, after press-fitting of said rotor shaft within said rotor lamination stack (; , , ), are spaced radially away from the outside of the shaft (), and'}{'b': 52', '41, 'wherein at least some () of the individual laminations () of the rotor lamination stack are arranged with a circumferential angular offset from an adjacent individual lamination.'} ...

Design Improvements for Flux Switching Machines

Disclosed herein is a design for flux switching machines with one or more armature windings which can deliver controlled torque, in either selected direction on start up, without the use of a mechanical position sensor. Flux switching machines without sensors can operate equally well in either direction. The invention discloses design features for such machines which improves the torque profile of the motor with angle. In three phase machines this delivers higher torque and lower ripple torque. In single phase flux switching machines the invention allows the rotor to be placed in a position where maximum torque can be delivered in either direction by selection of either positive or negative armature current. Rotor slotting is introduced to create a path of low permeability across a rotor tooth with minimal impact on the normal torque producing flux paths. Asymmetry of stator slots is used to further create a stable rotor position when energised by predominantly field means or armature means. Starting of the rotor from this stable position can be achieved in either direction. The method is suitable for starting permanent magnet flux switching motors. The invention results in low cost single phase motors which can start and run in either direction and three phase flux switching motors with improved performance over the prior art. 1. A flux switching electrical machine for converting electrical energy into mechanical energy and/or mechanical energy into electrical energy , the machine comprising:a stator; anda rotor,the stator having a field means for the creation of field flux and an armature assembly comprising at least one armature winding positioned in slots between stator teeth,the stator teeth extending radially towards an air-gap between stator and rotor,the rotor having teeth extending radially towards the air-gap between rotor and stator, each of at least two of the rotor teeth being manufactured to have different permeabilities parallel to and perpendicular ...

ROTOR OF MOTOR AND SYNCHRONOUS MOTOR HAVING THE SAME AND WOUND ROTOR SYNCHRONOUS MOTOR

Disclosed is a rotor for a motor in a vehicle. More specifically, the rotor includes a rotation shaft serving as a center of rotation of the rotor, a core installed at the rotation shaft and comprising a plurality of teeth radially protruding with respect to the rotation shaft, a coil wound around the tooth to generate a magnetic field by an external power source, and a pair of permanent magnets installed at both sides of the teeth. Also disclosed is a synchronous motor including the rotor, and a wound rotor synchronous motor. 1. A rotor of a motor , comprising:a rotation shaft serving as a center of rotation of the rotor;a core installed at the rotation shaft and comprising a plurality of teeth radially protruding with respect to the rotation shaft;a coil wound around the plurality of teeth to generate a magnetic field via an external power source; andat least one permanent magnet installed around a respective tooth of the plurality of the teeth.2. The rotor of claim 1 , wherein:the respective teeth include an extended portion circumferentially extending from ends of the respective tooth so as to be matched with an inner diameter surface of a stator of the motor.3. The rotor of claim 2 , wherein:the at least one permanent magnet is installed between the extended portion and the coil.4. The rotor of claim 2 , wherein:the extended portion forms a groove on both sides of the respective tooth, and the at least one permanent magnet is inserted in groove.5. The rotor of claim 1 , wherein:the permanent magnet is a ferrite magnet.6. A synchronous motor claim 1 , comprising:a cylindrical stator configured to form a magnetic field via an external power source; and a rotation shaft serving as a center of rotation of the rotor;', 'a core installed at the rotation shaft and comprising a plurality of teeth radially protruding with respect to the rotation shaft;', 'a coil wound around the plurality of teeth to generate a magnetic field via an external power source; and', 'at ...

POLE-PIECE STRUCTURE FOR A MAGNETIC GEAR

The disclosure provides a pole-piece structure for a magnetic gear, comprising a plurality of laminate plates, wherein each plate is a metallic ring having a plurality of regularly spaced substantially solid portions joined by hollow connecting portions wherein each plate is connected to an adjacent plate by a connecting means that is formed from or uses the material of the plates, such that the laminate plates form a mono-structure held together by the material of the plates. 1. A pole-piece structure for a magnetic gear , comprising:a plurality of laminate plates, wherein each plate comprises a ring having a plurality of regularly spaced substantially solid portions joined by hollow connecting portions;wherein each plate is connected to an adjacent plate by a connecting means that is formed from or uses the material of the plates, such that the laminate plates form a mono-structure held together by the material of the plates.2. A pole-piece structure as claimed in claim 1 , wherein said connecting means comprises one or more weld lines or beads extending across an outer surface of the stack of laminate plates claim 1 , such that the laminate plates form a mono-structure held together by said one or more weld lines or beads.3. A pole-piece structure as claimed in claim 2 , wherein said weld lines or beads extend in a direction parallel or substantially parallel to the longitudinal axis of said pole-piece structure.4. A pole-piece structure as claimed in claim 2 , wherein said weld lines or beads are formed without the use of a filler material claim 2 , for example by an electron beam welding process.5. A pole-piece structure as claimed in claim 1 , wherein said connecting means comprises one or more protrusions that are received within one or more cooperating recesses in an adjacent plate in a press claim 1 , interference or snap fit arrangement such that the laminate plates form a mono-structure held together by said press claim 1 , interference or snap fit ...

MOTOR

A motor includes a stator, a rotor and a case. The rotor includes a first rotor core, a second rotor core, and a field magnet. Each of the first rotor core and the second rotor core includes a core base and a plurality of claw poles. The field magnet is located between the core bases. The case includes a cylindrical yoke housing and a lid. To balance magnetic flux from the first rotor core with magnetic flux from the second rotor core, the distance between the rotor and the stator is varied from the distance between the rotor and the yoke housing or the teeth of the stator are shaped to enable magnetic saturation. 1. A motor comprising:a stator including a stator core and a winding, wherein the stator core includes a plurality of teeth arranged in a circumferential direction, the winding is wound around the teeth, and each of the teeth extends in a radial direction; each of the first rotor core and the second rotor core includes a substantially disk-shaped core base, and a plurality of claw poles arranged in equal intervals on a circumferential portion of the core base,', 'each of the claw poles projects toward an outer side in the radial direction and extends in an axial direction,', 'the core bases are opposed to each other, and the claw poles are alternately arranged in the circumferential direction,', 'the field magnet is located between the core bases in the axial direction, the field magnet is magnetized in the axial direction so that the claw poles of the first rotor core function as first magnetic poles and the claw poles of the second rotor core function as second magnetic poles; and, 'a rotor including a first rotor core, a second rotor core, and a field magnet, wherein'}a case that accommodates the stator and the rotor, wherein the case includes a cylindrical yoke housing, which has a closed end, and a lid, which closes an opening of the yoke housing, and the yoke housing is formed by a magnetic body,wherein to balance magnetic flux from the first rotor ...

Power generator assembly for rotating applications

A rotating part that includes at least one generator unit having at least one coil, at least one permanent magnet and two pole shoes having pole surfaces facing radially outward is provided, The non-rotating part has an arc-shaped saddle adaptor of ferromagnetic material arranged with a radial distance to the pole surfaces. The saddle adaptor is configured to close a magnetic circuit passing via the pole shoes through the coil in a rotational position where the saddle adaptor overlaps with the pole shoes of the generator unit.

POWER GENERATION DEVICE

A power generation device capable of achieving reduction in size and compactification and further increasing a power generation amount is provided. In a power generation device including an input-side gear mechanism A that is driven by external motive power, and an output-side gear mechanism B to which motive power is transmitted from the input-side gear mechanism A, in which a generator is connected to the output-side gear mechanism B, the input-side gear mechanism A and the output-side gear mechanism B are each configured such that an annular internal gear is disposed concentrically with a sun gear , and a plurality of intermediate gears are interposed in an annular space between the internal gear and the sun gear , between a pair of side plates and , a first output shaft A is provided in the sun gear of the input-side gear mechanism A, the first output shaft A is connected to the internal gear of the output-side gear mechanism B, a second output shaft B is provided in the sun gear of the output-side gear mechanism B, and the second output shaft B is connected to the generator , and the external motive power is input to the internal gear of the input-side gear mechanism A. 15-. (canceled)6. A power generation device ,wherein at one end portion side of a support member comprising a housing, an input-side gear mechanism that has a pair of side plates one of which is fixed to the support member, and that supports first bearings on respective outer surfaces of the pair of side plates is supported,at the other end portion side of the support member comprising the housing, an output-side gear mechanism that has a pair of side plates one of which is fixed to the support member is supported,the input-side gear mechanism and the output-side gear mechanism are each configured such that an annular internal gear is disposed concentrically with a sun gear and a plurality of intermediate gears are interposed in an annular space between the internal gear and the sun gear, the ...

Method for manufacturing a can

A submersible pump assembly includes an electric motor ( 1 ) and a centrifugal pump, which is driven by the electric motor ( 1 ). A rotor ( 4 ) formed of plastic or composite material which is manufactured in the extrusion or pultrusion method.

RELUCTANCE ROTOR LAMINATION HAVING AN OPENING FOR STRESS REDUCTION

The invention relates to a reluctance rotor lamination that permits easy assembly of a rotor, in particular by means of press fitting, wherein there must be sufficient stability. For this purpose, a reluctance rotor lamination () is provided, wherein an opening () for stress reduction is arranged on each d axis half () in each flux-conducting section (), such that a partial flux-conducting section () is formed on each of the two sides of each d axis half () in each flux-conducting section (). The sum of the smallest cross-section of each of the two partial flux-conducting sections () is substantially greater than or equal to a smallest cross-sectional area of the flux-conducting section () perpendicular to each partial d axis half () radially above the opening, such that the opening () does not cause magnetic impairment. 115.-. (canceled)16. A reluctance rotor , comprising:a laminated core comprised of a plurality of reluctance rotor laminations and a shaft, which is connected rotatably to the laminated core by friction locking only, each said reluctance rotor lamination being configured in the shape of a circular disk and comprising at least one d-axis having two d-axis halves separated by a center of the reluctance rotor lamination, said reluctance rotor lamination including a central opening in the center of the reluctance rotor lamination, a connecting ring located on an outer edge of the reluctance rotor lamination, and a flux-conducting section extending radially from the central opening to the connecting ring along each d-axis half and including an opening on a respective one of the d-axis halves such that a partial flux-conducting section is formed on each of two sides of the respective d-axis half in the flux-conducting section,wherein a sum of a smallest cross section of the partial flux-conducting sections is greater than or equal to a smallest cross-sectional area of the flux-conducting section perpendicular to the respective d-axis half radially above ...

ELECTROMAGNETIC ROTARY DRIVE

An electromagnetic rotary drive includes a magnetically contactlessly drivable rotor free of coils, and a stator configured as a bearing and drive stator configured to drive the rotor magnetically and contactlessly about an axis of rotation. The rotor is capable of being supported magnetically contactlessly with respect to the stator in an operating state. The stator includes an upper stator part having a plurality of pronounced upper poles configured to carry upper windings and a lower stator part having a plurality of pronounced lower poles configured to carry lower windings. The upper stator part and the lower stator part are arranged spaced apart from one another with respect to an axial direction. A permanent magnet is disposed between the upper stator part and the lower stator part. 1. An electromagnetic rotary drive , comprising:a magnetically contactlessly drivable rotor free of coils; anda stator configured as a bearing and drive stator configured to drive the rotor magnetically and contactlessly about an axis of rotationthe rotor capable of being supported magnetically contactlessly with respect to the stator in an operating state, and the stator comprising an upper stator part having a plurality of pronounced upper poles configured to carry upper windings and a lower stator part having a plurality of pronounced lower poles configured to carry lower windings, the upper stator part and the lower stator part being arranged spaced apart from one another with respect to an axial direction and a permanent magnet being disposed between the upper stator part and the lower stator part.2. A rotary drive in accordance with claim 1 , wherein the rotor comprises a magnetically active core and is free of permanent magnets.3. A rotary drive in accordance with claim 1 , wherein the upper stator part comprises exactly three upper poles or the lower stator part comprises exactly three lower poles.4. A rotary drive in accordance with claim 1 , wherein a number of the upper ...

ELECTRICAL CORE ELEMENT FOR A GENERATOR

Permanent magnet electric generators and methods of generating electrical energy are provided. The generators include two rack assemblies each including concentric circular cylindrical cores having circular arrangements of permanent magnets and electrical conductors. The two rack assemblies are axially engaged wherein magnets of the concentric circular cylindrical cores repel adjacent magnets and thereby rotate the cylindrical cores. The rotation of the adjacent magnets in the cores induces an electric current within the electrical conductors, which can be extracted and used in a broad range of applications. Various mechanisms adapted to engage and disengage the two rack assemblies are provided, including the introduction of a vacuum into the generator housing. Methods of generating electrical energy and electrical cores having permanent magnets and conductors are also disclosed. 120-. (canceled)21. An electrical core element for generator , the core element comprising:at least one circular arrangement of permanent magnets;a plurality of electrical conductors passing in proximity with at least some of the permanent magnets; anda housing adapted to retain each of the permanent magnets in the arrangement of permanent magnets in a predetermined orientation and adapted to retain the plurality of electric conductors in a predetermined position.22. The core element as recited in claim 21 , wherein the predetermined orientation comprises orienting a pole of each of the permanent magnets radially within the at least one circular arrangement.23. The core element as recited in claim 21 , wherein the at least one circular arrangement of permanent magnets comprises a plurality of spaced circular arrangements of permanent magnets.24. The core element as recited in claim 23 , wherein the plurality of spaced circular arrangements of permanent magnets comprises a plurality of axially spaced circular arrangements of permanent magnets.25. The core element as recited in claim 21 , ...

Magnetically levitated rotor and a rotary machine with such a rotor

A magnetically levitated rotor includes a magnetically effective core and a sheathing made of a thermoplastically processible fluoropolymer. The sheathing completely encloses the magnetically effective core. The magnetically effective core comprises at least one permanent magnet and each permanent magnet has a metallic coating for protection against acidic or chemically aggressive substances. A plastic coating is disposed between the metallic coating and the sheathing, and includes a polymer belonging to the family of parylenes.

ROTATING ELECTRIC MACHINE TEST METHOD, ROTATING ELECTRIC MACHINE TEST DEVICE, AND ROTATING ELECTRIC MACHINE

A rotating electric machine includes a stator and a rotor. An imaging device images a test target portion which is a part of the rotor, to generate image data of the test target portion, and transmits the generated image data to an image processing device. The image processing device generates strain change information representing change in the strain distribution in the test target portion by digital image correlation on the basis of the test image data generated by the imaging device. The state of the rotor is tested using the generated strain change information. 1. A rotating electric machine test method for testing a rotating electric machine including a rotor and a stator , the rotating electric machine test method comprising:a test image data acquisition step of acquiring test image data by imaging a test target portion which is a part of the rotor by an imaging device; anda change information generation step of generating, as strain change information, change in a strain distribution in the test target portion by digital image correlation on the basis of the acquired test image data.2. The rotating electric machine test method according to claim 1 , further comprising an initial image data acquisition step of acquiring initial image data by imaging the test target portion in a first period claim 1 , whereinthe test image data acquisition step includes a step of acquiring the test image data by imaging the test target portion in a second period after the first period, andthe change information generation step includes a step of generating the strain change information on the basis of the initial image data and the test image data.3. The rotating electric machine test method according to claim 1 , further comprising a time determination step of determining a time during which operation of the rotating electric machine is able to continue claim 1 , on the basis of the strain change information.4. The rotating electric machine test method according to claim 1 , ...

FLUID PUMP ASSEMBLY

A fluid pump assembly is provided. The pump has a pair of units magnetically coupled to each other. The first unit contains a drive motor and a magnetic assembly. The second unit contains a magnetic assembly and a blade of a propeller/impeller for imparting movement to a fluid. As the first unit is activated by the drive motor, a magnetic flux is created which in turn rotates the magnetic assembly in the second unit, driving the blade. 1. A magnetically driven unit of a fluid pump assembly , comprising:a housing comprising a base and a nozzle;a rotator at least partially contained in the housing, the rotator comprising a magnet constructed and arranged to be magnetically coupled to and rotationally driven by a magnet of a drive unit;a shaft operatively connected to the rotator;a blade operatively coupled with the shaft; anda magnet cover cooperating with the base to enclose the rotator.2. The magnetically driven unit of claim 1 , further comprising an axle concentrically surrounded by the shaft.3. The magnetically driven unit of claim 2 , wherein the axle comprises a flanged base.4. The magnetically driven unit of claim 3 , wherein the flanged base contacts a surface of the base.5. The magnetically driven unit of claim 4 , further comprising a ceramic sleeve concentric with the axle and positioned between the axle and the shaft.6. The magnetically driven unit of claim 5 , wherein at least a portion of the ceramic sleeve is concentric with and surrounded by a bearing.7. The magnetically driven unit of claim 3 , wherein the axle comprises a metallic material.8. The magnetically driven unit of claim 1 , wherein the nozzle comprises a plurality of ribs spaced apart from one another to create openings for allowing fluid to flow therethrough.9. The magnetically driven unit of claim 1 , further comprising a casing surrounding the magnet.10. The magnetically driven unit of claim 1 , further comprising a lower bearing connected to the rotator.11. A fluid pump assembly claim ...

Synchronous reluctance rotating electric machine

A synchronous reluctance rotating electric machine of an embodiment has a rotor iron core provided with a plurality of air gap layers, and a stator. The rotor iron core has a plurality of band-shaped magnetic path layers, and at least one or more bridges that bridge across each of the air gaps adjacent to each other among the plurality of air gap layers. The bridges of the air gaps adjacent to each other are disposed on different straight lines.

COIL-OSCILLATOR VIBRATION UNIT FOR RAIL WORKHEAD

A rail maintenance vehicle includes a frame, a workhead, and a vibrating unit. The frame includes wheels that travel along rails. The vibrating unit is coupled to the workhead and includes a rotor, a stator, a first rotor coil coupled to the rotor and a first stator coil coupled to the stator. 1. A rail maintenance vehicle , comprising:a frame having wheels that travel along rails;a workhead;a vibrating unit coupled to the workhead, the vibrating unit including a rotor, a stator, a first rotor coil coupled to the rotor and a first stator coil coupled to the stator.2. The rail maintenance vehicle of claim 1 , further comprising a flexible conductor coupled between the first rotor coil and the first stator coil.3. The rail maintenance vehicle of claim 1 , wherein the rotor includes a concave pole face.4. The rail maintenance vehicle of claim 3 , wherein the stator includes a convex pole face.5. The rail maintenance vehicle of claim 4 , wherein the concave pole face of the rotor is disposed adjacent the convex pole face of the stator.6. The rail maintenance vehicle of claim 1 , further comprising a second rotor coil coupled to the rotor and a second stator coil coupled to the stator claim 1 , whereinthe first rotor coil is disposed at a first side of a shaft coupled to the rotor,the second rotor coil is disposed at a second, opposing side of the shaft,the first rotor coil is disposed proximal to the first stator coil, andthe second rotor coil is disposed proximal to the second stator coil.7. The rail maintenance vehicle of claim 6 , further comprising a controller operable to alternatingly cause the first rotor coil and the first stator coil to have a same polarity and the second rotor coil and the second stator coil to have a same polarity.8. The rail maintenance vehicle of claim 6 , further comprising a controller operable to alternatingly cause the first rotor coil and the first stator coil to have opposite polarity and the second rotor coil and the second stator ...

ROTOR FOR ROTATING ELECTRIC MACHINE

An object of the present invention is to reduce stress caused by press-fitting of a shaft on an outer edge portion side of a rotor. A rotor for a rotating electric machine includes a shaft and a rotor iron core, the shaft coupled to the rotor iron core. The rotor iron core includes: an outer edge portion housing a magnet; an inner edge portion coupled to the shaft; and a rib portion having a lightening portion that is formed inside between the outer edge portion and the inner edge portion. The rib portion includes: a through-hole forming portion connected to the outer edge portion and having a through-hole inside; and a bridge portion connecting the through-hole forming portion and the inner edge portion. The bridge portion includes: a second bridge portion connected to the through-hole forming portion and protruding outward; and a first bridge portion having one end connected to the inner edge portion and another end connected to the second bridge portion. A bent portion is provided at a position connecting the first bridge portion and the second bridge portion. 1. A rotor for a rotating electric machine comprising:a shaft; anda rotor iron core,whereinthe shaft is coupled to the rotor iron core,the rotor iron core includes: an outer edge portion housing a magnet; an inner edge portion coupled to the shaft;and a rib portion having a lightening portion that is formed inside between the outer edge portion and the inner edge portion,the rib portion includes: a through-hole forming portion connected to the outer edge portion and having a through-hole inside; and a bridge portion connecting the through-hole forming portion and the inner edge portion,the bridge portion includes: a second bridge portion protruding outward from the through-hole forming portion; and a first bridge portion having one end connected to the inner edge portion and another end connected to the second bridge portion, anda bent portion is provided at a position connecting the first bridge portion ...

Electrical generator for luggage

The present invention is directed to an electrical generator assembly for wheeled luggage. The assembly construction is robust and includes an anti-skid sleeve. Wiring for the generator is positioned within the assembly so as to reduce the possibility of accidental disconnection. A protective baffle is used to prevent the accumulation of debris that can hinder the smooth rolling of the wheel thereby allowing for more consistent power generation.

Power generator assembly for rotating applications

A power generator assembly including a rotating part and a non-rotating part is provided. It is proposed that the rotating part includes first and second, circumferentially adjacent generator units. Each generator unit includes at least one coil, at least one permanent magnet and two pole shoes having pole surfaces facing radially outward. The non-rotating part includes an arc-shaped saddle adaptor of ferromagnetic material arranged with a radial distance to the pole surfaces. The saddle adaptor is configured to close a magnetic circuit passing via the pole shoes through the coil in a rotational position where the saddle adaptor overlaps with the pole shoes of a generator unit. According to the invention, a pole shoe of the first generator unit and an adjacent pole shoe of the second generator unit have the same magnetic polarity.

ELECTRIC METAL SHEET HAVING A PRINTED WEB

Together with a high level of stability, the magnetic efficiency, in particular, of rotor metal sheets is to be increased. For this purpose, an electric metal sheet is provided for an electric machine, the main body of which is an individual sheet made of a magnetizable material, the individual sheet having a plurality of cut-outs. At least one web is provided in one of the cut-outs, the web being printed by a 3-D printing method from a non-magnetizable material. 110.-. (canceled)11. An electric metal sheet for an electric machine , comprising a main body in the form of an individual sheet made of a magnetizable material , said individual sheet having a plurality of cut-outs , each of the cut-outs including a web which is printed by a 3-D printing process from a non-magnetizable material , wherein the webs are arranged at least in one of two ways , a first way in which the webs are arranged in parallel relation to a first q-axis at a pre-determined spacing from the first q-axis , a second way in which a first plurality of the webs is arranged exclusively on a first circular segment defined by a first radius and a second plurality of the webs is arranged exclusively on a second circular segment defined by a second radius which is different in relation to the first radius.12. The electric metal sheet of claim 11 , wherein the individual sheet has an insulating layer claim 11 , whereas the web has no insulating layer.13. The electric metal sheet of claim 11 , wherein a plurality of magnetizable portions of the individual sheet and a plurality of the webs are arranged alternatingly at an outer periphery of the electric metal sheet.14. The electric metal sheet of claim 11 , wherein each of the webs has a thickness which is thinner than a sheet metal thickness of the individual sheet.15. The electric metal sheet of claim 11 , wherein a plurality of the webs is arranged in parallel relation to a second q-axis at a pre-determined spacing from the second q-axis claim 11 , ...

THREE-PHASE INDUCTION MOTOR AND SECONDARY CONDUCTOR THEREOF

A three-phase induction motor includes: a stator having a stator slot having an open slot structure for inserting a formed coil; and a rotor having a rotor slot into which a conductor bar is inserted, the rotor being placed on an inner side of the stator with a clearance between the rotor and the stator. The conductor bar has a polygonal cross-sectional shape having six or more angles, and both end portions of an outer-circumference-side edge surface of the conductor bar are rounded. 1. A three-phase induction motor , comprising:a stator having a stator slot having an open slot structure for inserting a formed coil; anda rotor having a rotor slot into which a secondary conductor is inserted, the rotor being placed on an inner side of the stator with a clearance between the rotor and the stator, the rotor slot having a polygonal cross-sectional shape having six or more angles, whereinthe secondary conductor has a polygonal cross-sectional shape having six or more angles that is different from the cross-sectional shape of the rotor slot, and both end portions of an outer-circumference-side edge surface of the secondary conductor are rounded,a portion of the outer-circumference-side edge surface other than the both end portions makes no contact with the rotor, andthe both end portions make surface contact with a tapered portion formed on an outer circumference side of the rotor slot.2. The three-phase induction motor according to claim 1 , wherein claim 1 ,when the secondary conductor is inserted in the rotor slot, a slot opening portion is placed on an outer circumferential surface side of the rotor slot and a gap is formed between the slot opening portion and the outer-circumference-side edge surface, anda radial length of the slot opening portion is longer than a radial length of the gap.3. The three-phase induction motor according to claim 1 , wherein a material of the secondary conductor is pure copper.4. The three-phase induction motor according to claim 1 , ...

Rotor of synchronous motor

A rotor of a synchronous motor includes a rotor core that includes magnet insertion holes and a plurality of slits formed on an outer peripheral side of the magnet insertion holes, and permanent magnets embedded in the magnet insertion holes. Magnetic-path forming slits are formed at intervals in a direction along a side of the permanent magnet. Magnetic paths are formed between the magnetic-path forming slits and at portions on the outside of the magnetic-path forming slits on the outermost side. An adjusting slit is formed between a predetermined magnetic-path forming slit and the permanent magnet such that a difference between quantities of magnetic flux passing through the magnetic paths adjacent to each other for widths in a direction intersecting an orientation of a magnetic pole of the permanent magnet is small.

ELECTRICAL MACHINE AND MAINTENANCE METHODS THEREOF

In a first aspect, a method of performing maintenance operations in an electrical machine is provided. The method comprises positioning the rotor in a first position; disconnecting electrical windings, removing one or more segments of an electrical conductor ring and positioning the rotor in a second position without connecting the removed segments of the electrical conductor ring. In a further aspect, a method of operating an electrical machine is also provided. In yet a further aspect, it is provided an electrical machine comprising an electrical conductor ring having a releasable segment. 115-: (canceled)16. An electrical machine having a plurality of electrical phases , comprising:an inner structure and an outer structure, with an air gap between the inner and the outer structure;wherein the inner structure is one of a rotor or a stator of the electrical machine and the outer structure is an other of the rotor or the stator of the electrical machine;the rotor configured to rotate around a rotational axis extending from a first side to a second side;the stator comprises a plurality of electrical windings and an electrical conductor ring extending along a circumference of the stator for connecting the electrical windings to an electrical converter;the outer structure comprising at least one maintenance aperture extending along a portion of the outer structure for accessing a portion of the inner structure from the first side; andthe electrical conductor ring comprises a plurality of segments having a releasable segment being releasably connected to other segment or segments of the electrical conductor ring; andwherein the releasable segment connects a selection of the electrical windings, the selection having a same number of windings for each of the plurality of electrical phases.17. The electrical machine according to claim 16 , wherein the inner structure is the stator and the outer structure is the rotor.18. The electrical machine according to claim 17 , ...

Ion Separator Water Pump

An ion separator water pump is provided, comprising a stator cylinder with input and output ports, homopolar north poles, and homopolar south poles, a drive shaft, a rotor core, and seals. Salt water pumped through the ion separator water pumps is desalinated by alternatively flushing out the positive and negative ions at various points as the water flows through the proposed devices. Two pump configurations are presented for use in desalination of salt water. 1. An ion separator water pump comprising:a stator cylinder;a drive shaft disposed in the stator cylinder, extending from a right end portion of the stator cylinder to a left end portion of the stator cylinder, and configured to rotate with respect to the stator cylinder;a rotor core disposed around the drive shaft and comprising right rotor core laminations disposed on a right side portion of the rotor core, left rotor core laminations disposed on a left side portion of the rotor core, middle rotor core laminations disposed between the right and left rotor core laminations, right comparting rotor core laminations disposed between the right rotor core laminations and the middle rotor core laminations, and left comparting rotor core laminations disposed between the left rotor core laminations and the middle rotor core laminations, so that a cavity between the rotor core and stator cylinder is divided into a right outer compartment, a left outer compartment, and a middle compartment through two comparting seals installed between the stator cylinder and the right and left comparting rotor core laminations;a pair of homopolar north poles disposed close to a right end portion of the rotor core with a pair of air gaps over right rotor core laminations installed around the rotor core, wherein the pair of homopolar north poles are disposed so as to face each other on both sides of the rotor core through the stator cylinder; anda pair of homopolar south poles disposed close to a left end portion of the rotor core with ...

Motor with shaft movable in limited manner, and machine tool

A motor able to prevent axial displacement of a rotor in a simple structure without increasing the number of parts of the motor. The motor includes a rotor including a shaft, a housing configured to support the shaft rotatably and movably in a limited manner in an axial direction, a flange disposed on an axially outside of the housing and configured to rotate integrally with the shaft, the flange projecting radially outward from the shaft and being configured to prevent a foreign object from entering the housing, and a temporary tacking structure provided in at least one of the flange and the housing, and configured to temporarily tack the housing and the flange to each other in the axial direction.

CLAW POLE COMPRISING A CENTERING POINT

An electrical machine (), especially a three-phase generator for vehicles, that comprises a stator () and a rotor (). The rotor () comprises a first and a second claw pole () from which claw pole fingers () respectively extend in the axial direction from claw pole roots (). A centering point () for a tool is located on a rear radius () of the claw pole roots (). 110162020222324256060727472607476. A method for producing an electrical machine () comprising a stator () which is of annular design and a rotor () , wherein the rotor () , as a result of a forming process , includes a first claw pole () and a second claw pole () from which claw pole fingers ( , ) that originate at claw pole roots () respectively extend in an axial direction , wherein a claw pole root () has a rear radius () , the method comprising providing a centering point () for a tool on a rear radius () of one of the claw pole roots () at a location , subsequently centering the tool in the centering point () , and using the tool to produce a balancing hole () at this location.274. A method according to claim 1 , characterized in that the centering point () is an indentation.374. A method according to claim 1 , characterized in that the centering point () is a centering apex.474. A method according to claim 1 , characterized in that the centering point () has a circular shape.574. A method according to claim 1 , characterized in that the centering point () is funnel-shaped.674. A method according to claim 1 , characterized in that the centering point () defines an angular range for start of drilling which corresponds to an aperture angle thereof This application is a divisional of pending U.S. application Ser. No. 13/259,257, filed Dec. 12, 2011, which is a U.S. 371 National Phase filing of PCT/EP2010/053207, filed Mar. 12, 2010, which claims priority to German Application No. 10 2009 001 745.3, filed Mar. 23, 2009. The entire contents of all of the foregoing are hereby incorporated by reference.EP 0 ...

Manufacturing Method for Bonded Magnet and Motor Using the Magnet

A bonded magnet of the present invention has a configuration that it contains at least a magnetic powder and a binder, and in which the magnetic powder and the binder are mixed such that a content of the magnetic powder is 98 mass % or more and a content of the binder is more than 0 mass % and 2 mass % or less. Accordingly, a bonded magnet having good magnetic characteristics and high heat resistance can be attained. 1. A manufacturing method for bonded magnet , comprising:preparing a first mixture including at least a magnetic powder and a binder, wherein the magnetic powder and the binder are mixed such that a content of the magnetic powder is 98 mass % or more and a content of the binder is more than 0 mass % and 2 mass % or less, and wherein the binder includes an epoxy resin and a polyamide resin such that the ratio between the polyamide resin and the epoxy resin is about 3:1;kneading the first mixture at a temperature of about 140° C.;mixing an imidazole-based curing agent with the first mixture after the kneading step to prepare a second mixture;compression-molding the second mixture at a temperature of about 170° C.2. A motor having a rotor or stator provided with the bonded magnet manufactured by the method according to . This application is a divisional of and claims priority to U.S. application Ser. No. 13/977,910 filed Jul. 1, 2013; International Application No. PCT/JP2012/000293 filed Jan. 19, 2012; and Japanese Patent Application No. JP2011-009637 filed Jan. 20, 2011; the entire contents of each are incorporated herein by reference.The present invention relates to a bonded magnet having high heat resistance and a motor provided with the same.Conventionally, a bonded magnet of this kind is described, for example, in PTL 1.Hereinafter, a method of producing a bonded magnet described in PTL 1 will be explained.First, a rare-earth magnetic powder which has been ground into a predetermined particle diameter is mixed with a binder. Then, the mixture of the ...

SYSTEM AND METHOD FOR SMOOTHING A SALIENT ROTOR IN ELECTRICAL MACHINES

An electrical machine exhibiting reduced friction and windage losses is disclosed. The electrical machine includes a stator and a rotor assembly configured to rotate relative to the stator, wherein the rotor assembly comprises a rotor core including a plurality of salient rotor poles that are spaced apart from one another around an inner hub such that an interpolar gap is formed between each adjacent pair of salient rotor poles, with an opening being defined by the rotor core in each interpolar gap. Electrically non-conductive and non-magnetic inserts are positioned in the gaps formed between the salient rotor poles, with each of the inserts including a mating feature formed an axially inner edge thereof that is configured to mate with a respective opening being defined by the rotor core, so as to secure the insert to the rotor core against centrifugal force experienced during rotation of the rotor assembly. 1. An electrical machine comprising:a stator; a rotor core comprising a plurality of salient rotor poles that are spaced apart from one another around an inner hub such that an interpolar gap is formed between each adjacent pair of salient rotor poles, with an opening being defined by the rotor core in each interpolar gap; and', 'a plurality of inserts positioned in the gaps formed between the plurality of salient rotor poles, the plurality of inserts being formed of electrically non-conductive and non-magnetic material;', 'wherein each of the plurality of inserts comprises a mating feature formed an axially inner edge thereof that is configured to mate with a respective opening being defined by the rotor core, so as to secure the insert to the rotor core against centrifugal force experienced during rotation of the rotor assembly., 'a rotor assembly disposed within the stator and configured to rotate relative to the stator, wherein the rotor assembly comprises2. The electrical machine of wherein the rotor core comprises a toothed rotor where the plurality of ...

ELECTRIC MOTOR ROTOR MECHANISM

An electric motor rotor mechanism includes a plurality of rotor bars and a rotor core. The rotor bars are disposed on the rotor core. The rotor core has a plurality of lines of barriers and a plurality of flux barrier holes. Each of the lines of barriers extends from one of the rotor bars to another one of the rotor bars. The flux barrier holes are arranged along the lines of barriers. Each of the flux barrier holes is a magnetic flux barrier. An area between each adjacent flux barrier hole is a magnetic flux path. 1. An electric motor rotor mechanism , comprising:a plurality of rotor bars; anda rotor core, the plurality of rotor bars being disposed on the rotor core, the rotor core having a plurality of lines of barriers and a plurality of flux barrier holes, each of the plurality of lines of barriers extending from one of the plurality of the rotor bars to another one of the plurality of the rotor bars, the plurality of flux barrier holes being arranged along the plurality of lines of barriers, each of the plurality of flux barrier holes being a magnetic flux barrier, and an area between each adjacent flux barrier hole in the plurality of flux barrier holes being a magnetic flux path.2. The electric motor rotor mechanism according to claim 1 , wherein a ratio of a distance between two of the plurality of flux barrier holes claim 1 , that are adjacent to each other claim 1 , to an external diameter of each of the plurality of flux barrier holes is less than 3.3. The electric motor rotor mechanism according to claim 1 , wherein the plurality of flux barrier holes on each of the plurality of lines of barriers are spaced apart equally.4. The electric motor rotor mechanism according to claim 1 , wherein the plurality of flux barrier holes on each of the plurality of lines of barriers are not spaced apart equally.5. The electric motor rotor mechanism according to claim 1 , wherein each of the plurality of flux barrier holes is filled with a material having a magnetic ...

INDUCED POLARIZATION AC MOTOR

The present invention relates to an induced polarization AC motor having maximized efficiency, a stator of the AC motor being provided with number of winding slots and number of induced polarization slits so that when electricity is applied to the stator having just n number of slots distributedly wound, polarization is induced on the magnetic field surfaces on both sides of the winding slots to double the magnetomotive force for operating and rotating the rotor. Here, the rotational direction is determined by the Fleming left-hand rule. 1{'b': '2', 'i': 'n', 'number of winding slots which are provided in a core formed by stacking silicon steel plates; and'}{'b': '2', 'i': 'n', 'sub': ';', 'number of induced polarization slits (horse-shoe magnet polarization slits) which are provided between the winding slots'}{'b': '2', 'i': 'n', "wherein the stator is configured by applying distributed winding only to the n number of winding slots among the number of winding slots, and polarization is induced to magnetic field surfaces at both sides of the winding slots when electricity is applied to the stator, such that a rotor is actuated and rotated by doubling magnetomotive force, and a rotation direction is determined by Fleming's left-hand rule."}. An induced polarization AC motor which includes a stator of the induced polarization AC motor, the stator comprising: The present invention relates to an AC motor with efficiency improved by induced polarization (horse-shoe magnet polarization), and more particularly, to an induced polarization AC motor in which number of winding slots and number of induced polarization slits are provided, and distributed winding is applied only to the n number of winding slots among the number of winding slots, such that polarization is induced, by the induced polarization slits, to magnetic field surfaces at both sides of the winding slots, thereby doubling magnetomotive force, and thus improving efficiency of the motor.One of the global issues ...

MOTOR/GENERATOR SYSTEM AND METHOD

An electromagnetic motor/generator comprising a flux assembly having at least one coil and at least one magnetic field source separated by a first gap and a second gap and an interference drum which is movable relative to the at least one coil and to the at least one magnetic field source to alternatively position at least one first magnetically permeable section and at least one second magnetically permeable section inside the first and second gaps. 1. An electromagnetic motor/generator , comprising:a flux assembly having at least one coil and at least one magnetic field source, separated by a first gap and a second gap;an interference drum having an axis, the interference drum including a first rotor plate having a first outward facing surface and a first inward facing surface, a second rotor plate having a second outward facing surface and a second inward facing surface, a hub connecting the first rotor plate and the second rotor plate in a spaced apart relationship with the first inward facing surface of the first rotor plate and the second inward facing surface of the second rotor plate facing each other, at least one first magnetically permeable section attached to the first inward facing surface of the first rotor plate, and at least one second magnetically permeable section attached to the second inward facing surface of the second rotor plate, the at least one first magnetically permeable section and the at least one second magnetically permeable section arranged substantially directly opposite each other; andwherein the interference drum is movable through a circular path relative to the at least one coil and to the at least one magnetic field source to position the at least one first magnetic field permeable section and the at least one second magnetic field permeable section inside the first and second gaps at substantially a same instant in time.2. The electromagnetic motor/generator from claim 1 , wherein the first and second gaps are axial gaps.3. The ...

Rotor for an electric machine

The present disclosure relates to a rotor (3) for an electric machine (1). The rotor (3) is composed of a support frame (5) having a centre section (8) and a plurality of spokes (9). The spokes (9) extend outwardly from the centre section (8). The spokes (9) each have at least first and second bridge elements (12A, 12B) formed by one or more flux barrier (13). The first and second bridge elements (12A, 12B) are configured to control magnetic flux leakage into said centre section (8). The present disclosure also relates to an electric machine (1) having a rotor (3) of this type.

SYNCHRONOUS RELUCTANCE MACHINE

A synchronous reluctance machine includes a stator and a rotor which is spaced apart from the stator by an air gap. The rotor rotatably mounted about an axis and includes laminations which are arranged axially one behind the other. Each lamination has an anisotropic magnetic structure which is formed by flux blocking sections and flux conducting sections. The flux blocking sections and flux conducting sections form poles of the rotor, with the flux blocking sections forming axially running channels and allowing an axial air flow. The laminated core of the rotor is axially subdivided into at least two component laminated cores, with radial cooling gaps being formed between the poles in the region of the q axis as viewed in a circumferential direction and between the component laminated cores as viewed axially. 18.-. (canceled)9. A synchronous reluctance machine , comprising:a stator; anda rotor spaced apart from the stator by an air gap and mounted for rotation about an axis, said rotor comprising a laminated core including laminations arranged axially behind one another, each said lamination having an anisotropic magnetic structure formed by flux blocking sections and flux conducting sections, with the flux blocking sections and flux conducting sections forming poles of the rotor, said flux blocking sections forming axial channels to enable an axial air flow, said laminated core being subdivided axially into at least two component laminated cores, with radial cooling gaps being formed in a circumferential direction between the poles in an area of an q axis and in an axial direction between the component laminated cores for enabling at least part of the axial air flow to radially exit into the air gap, with the radial cooling gap between the at least two component laminated cores being formed by an intermediate element which is magnetically conductive.10. The synchronous reluctance machine of claim 9 , constructed as a motor or generator with a power of greater than ...

ENERGY STORAGE, HYDROGEN AND OXYGEN PRODUCTION USING ION SEPARATORS

An ion separating device comprising a stator cylinder with input and output ports, end caps, a rotor core, homopolar north poles, and homopolar south poles, is used to separate positive and negative ions in electrolyte introduced into the device. The resulting charged ionic solutions are stored in separate tanks. Energy recovery from the charged ionic solutions is accompanied by the release of gases thereby providing another process of producing hydrogen and oxygen. 1. An ion separating device comprising:a stator cylinder;a pair of end caps provided on both end portions of the stator cylinder for forming a cavity inside;a drive shaft disposed in the stator cylinder, extending from a right end portion of the stator cylinder to a left end portion of the stator cylinder, and configured to rotate with respect to the stator cylinder;{'b': 52', '54', '56', '58, 'a rotor core disposed around the drive shaft and comprising right (rotor core) laminations disposed on a right side portion of the rotor core, left (rotor core) laminations disposed on a left side portion of the rotor core, middle (rotor core) laminations disposed between the right and left rotor core laminations, inner right comparting (rotor core) laminations disposed between the right rotor core laminations and the middle rotor core laminations, inner left comparting (rotor core) laminations disposed between the left rotor core laminations and the middle rotor core laminations, outer right comparting (rotor core) laminations disposed at a right end portion of the right rotor core laminations, and outer left comparting (rotor core) laminations disposed at a left end portion of the left rotor core laminations, so that the cavity between the rotor core and stator cylinder and enclosed by the pair of end caps are divided into a right outer compartment, a right inner compartment, a left outer compartment, a left inner compartment, and a middle compartment between the pair of end caps through four comparting seals (, ...

SELECTIVELY DEPLOYABLE HEATED PROPULSOR SYSTEM

A selectively deployable heated propulsor system which may be integrated into vehicles, airplanes, or any other machinery configured for flight. The system includes a structural feature that includes a mounted propulsor including a rotor and a motor mechanically coupled to the rotor allowing the rotor to rotate when in an activated mode. The mounted propulsor includes a chamber configured to support a first configuration where the propulsor and the rotor are stowed and heated in an enclosed environment, and a second configuration where the rotor is deployed. 1. A selectively deployable heated propulsor system , the system comprising: at least a rotor; and', 'at least a motor mechanically coupled to the at least a rotor configured to cause the rotor to rotate when activated;, 'at least a propulsor mounted on at least a structural feature, wherein the at least a propulsor includesat least a chamber configured to comprise the at least a propulsor, wherein the at least a chamber and the at least a propulsor are configured to move relative to one another between a first configuration in which the at least a rotor is stowed within the at least a chamber and a second configuration in which the at least a rotor is deployed outside of the at least a chamber; andat least a heating element thermally connected to the at least a chamber, wherein the heating element is configured to heat the at least a chamber and at least a rotor when the at least a chamber and the at least a propulsor are in the first configuration.2. The system of claim 1 , wherein the at least a motor includes at least an electric motor.3. The system of claim 1 , wherein the at least a propulsor further comprises a retraction mechanism that retracts the at least a rotor into the at least a chamber to place the at least a rotor and the at least a chamber in the first configuration claim 1 , and extends the rotor out of the at least a chamber to place the at least a rotor and the at least a chamber in the ...

Rotor for rotary electric machine and rotary electric machine

A rotor 14 includes a shaft having a coolant flow passage and a coolant supply port, a rotor core 24 fixed on the shaft and formed of laminated steel plates, and a magnet set 32 provided in the rotor core 24 to extend along an axial direction thereof. The rotor core 24 has a first flow passage 34 provided near the magnet to extend therealong and a second flow passage 36 that connects the coolant supply port 28 of the shaft 22 and the first flow passage 34 , thereby constituting a coolant flow path. The second flow passage 36 is formed by overlapping second slits 37 formed in the respective steel plates at an axially intermediate region A of the rotor core 24 , the formed position of the second slit 37 being different for each steel plate combined. The first flow passage 34 and the second flow passage 36 join at the axially intermediate region A of the rotor core 24.

LAMINATED CORE FOR A MAGNETIC BEARING HAVING INDIVIDUAL LAMINATIONS WITH AT LEAST ONE PHYSICAL INTERRUPTION AND METHOD FOR CONSTRUCTING SUCH A LAMINATED CORE

The core inside a combined radial-axial magnetic bearing is stacked with coated laminations each equipped with at least one radial cut. These cuts prevent the inducement of circulating currents caused by varying axial control fluxes through the central hole of the stack. Magnetic symmetry is preserved by pivoting every lamination with respect to the previous one over a particular angle. This arrangement not only reduces the losses in the bearing, but improves the performance of the axial channel as well. 115-. (canceled)16. A laminated core of a stator or a rotor of a permanent magnet biased or current biased combined radial-axial magnetic bearing , comprising:a solid stack of flat soft-magnetic individual laminations;each of said individual laminations comprising a substantially circular structure and at least one physical interruption in the substantially circular structure, wherein said at least one physical interruption physically interrupts circulating currents in the plane of the individual lamination;wherein said solid stack of flat-soft-magnetic individual laminations forms a cylindrical structure, wherein said cylindrical structure is configured in a way so as to create magnetic symmetry in the solid stack;said at least one physical interruption being filled with an electrically insulating material; andsaid at least one physical interruption in adjacent laminations being rotated with respect to each other.17. The laminated core of claim 16 , wherein a circulating eddy current due to a varying control flux cannot develop.18. The laminated core according to claim 16 , wherein none of said individual laminations are in electric contact with each other.19. The laminated core according to claim 16 , wherein said at least one physical interruption is straight and radially-oriented.20. The laminated core according to claim 16 , wherein said at least one physical interruption is straight and not radially-oriented.21. The laminated core according to claim 16 , ...

ROTATIONAL MOTOR

A rotational motor that comprises a stator and a rotor and at least two magnets comprising a permanent magnet and an electromagnet, wherein one of the magnets is attached to the stator and one of the magnets is attached to the rotor. The magnets are relatively aligned such that when the electromagnet is switched off, the permanent magnet is attracted to a ferromagnetic core of the electromagnet causing the rotor to rotate relative to the stator, and when the electromagnet is switched on, the permanent magnet is repelled from the electromagnet causing the rotor to continue to rotate relative to the stator. 1. A rotational motor comprising:a stator and a rotor;at least two magnets comprising a permanent magnet and an electromagnet, wherein one of the magnets is attached to the stator and one of the magnets is attached to the rotor;an annular magnetic collar surrounding an elongate ferromagnetic core of the electromagnet at least in part, wherein first and second core sections of the ferromagnetic core outwardly protrude from the magnetic collar in opposed directions, the magnetic collar comprising opposed first and second end portions that face, respectively, the first and second core sections;field windings coiled around the first core section such that an electric current flowing through the field windings causes a magnetic field to be created around the first core section, wherein the magnetic field comprises a first magnetic pole produced at an end of the first core section proximal to the magnetic collar and a second magnetic pole produced at an end of the first core section distal to the magnetic collar; anda magnetic shield that substantially covers the second core section, whereinthe magnetic collar is oriented relative to the ferromagnetic core such that a magnetic pole at the first end portion of the magnetic collar is opposite in polarity to the first magnetic pole, such that the magnetic collar concentrates and increases a strength of the magnetic field ...

Generators Having Rotors That Provide Alternate Magnetic Circuits

A generator includes a stator that has permanent magnets that complete a magnetic circuit across a series of gaps and through a generator coil. The rotor also includes permanent magnets that complete a magnetic circuit across a gap and through a rotor coil. When the rotor poles align with the stator poles, the stator and rotor magnetic circuits are broken, and new magnetic circuits are completed between the stator and rotor permanent magnets that cross the gap between the stator and rotor poles. A rotor coil can be used to boost the attraction/repulsion between to rotor and stator magnets. Alternating between these magnetic circuits as the prime mover rotates the rotor generates electricity. 1. A generator comprising: a generator coil wrapped around a generator core;', 'wherein the first magnetic flux element is magnetically coupled to a first end of the generator core across a first medium having a first reluctance;', 'a first magnetic flux element having a first stator pole,'}, 'a first magnetic flux donor that donates magnetic flux having a first polarity to the first magnetic flux element;', 'wherein the second magnetic flux element is magnetically coupled to a second end of the generator core across a second medium having a second reluctance; and', 'a second magnetic flux element having a second stator pole,'}, 'a second magnetic flux donor that donates magnetic flux having a second polarity, opposite to the first polarity, to the second magnetic flux element; and, 'stator comprising a third magnetic flux element having first and second rotor poles;', 'a rotor coil wrapped around the third magnetic flux element;', 'a third magnetic flux donor that donates magnetic flux having the second polarity to the third magnetic flux element; and', 'a fourth magnetic flux donor that donates magnetic flux having the first polarity to the third magnetic flux element, and, 'a rotor comprisingwherein the first stator pole and the first rotor pole are magnetically coupled ...

Rotor of electric motor

A rotor capable of improving a torque of an electric motor and a mechanical strength of the rotor. The rotor is provided with a shaft, a plurality of rotor segments that are lined up in the axial direction, and a connecting structure that connects a conductor of a first rotor segment and a conductor of a second rotor segment, which is adjacent to the first rotor segment in the axial direction, and that mechanically connects the first rotor segment and the second rotor segment with each other.

MODIFIED CLAW-POLE MOTOR

A claw-pole motor comprising a non-magnetic rotary shaft having a longitudinal axis, a plurality of flux concentrators extending along the longitudinal axis of the rotary shaft, and a plurality of magnetic claw poles extending along the longitudinal axis of the rotary shaft, each of the plurality of flux concentrators alternating with each of the magnetic claw poles about the rotary shaft, and a stator having a plurality of coil assemblies, each coil assembly including a solenoid coil and an enclosure having a upper portion and lower portion, the upper portion and the lower portion of the enclosure having alternating stator teeth about the longitudinal axis. 1. A claw-pole motor comprising:a rotor assembly having a rotary shaft orientated about a longitudinal axis, a plurality of flux concentrators extending along the rotary shaft, and a plurality of magnetic claw poles extending along the rotary shaft;each of the plurality of flux concentrators alternating with each of the magnetic claw poles about the rotary shaft;each magnetic claw pole of the plurality of magnetic claw poles having a longitudinal center line and a magnetization direction perpendicular to the longitudinal center line and being directed towards or away from a corresponding flux concentrator in an alternating order;a stator assembly having a plurality of coil assemblies, each coil assembly of the plurality of coil assemblies comprising a solenoid coil and an enclosure assembly;the enclosure assembly having an upper portion and lower portion;the upper portion and the lower portion of the enclosure assembly each having a plurality of stator teeth; andthe stator teeth of the upper portion alternating with the stator teeth of the lower portion about the longitudinal axis.2. The claw-pole motor of claim 1 , wherein the plurality of coil assemblies includes a first set of coil assemblies claim 1 , a second set of coil assemblies claim 1 , and a third set of coil assemblies.4. The claw-pole motor of claim ...

Structures Utilizing a Structured Magnetic Material and Methods for Making

A motor comprises a stator comprising at least one core; a coil wound on the at least one core of the stator; a rotor having a rotor pole and being rotatably mounted relative to the stator; and at least one magnet disposed between the rotor and the stator. The at least one core comprises a composite material defined by iron-containing particles having an alumina layer disposed thereon. 1. A motor , comprising:a stator comprising at least one core;a coil wound on the at least one core of the stator;a rotor having a rotor pole and being rotatably mounted relative to the stator; andat least one magnet disposed between the rotor and the stator;wherein the at least one core comprises a composite material defined by iron-containing particles having an alumina layer disposed thereon.2. The motor of claim 1 , wherein the rotor pole and the stator in conjunction with the at least one magnet directs magnetic flux between the rotor and the stator in directions that are outside of a single plane in three dimensions.3. The motor of claim 1 , wherein the stator is configured to approximate a cross sectional shape that defines surfaces corresponding to a cross sectional shape of the at least one magnet.4. The motor of claim 1 , further comprising a conical air gap between the stator and the at least one magnet.5. The motor of claim 4 , wherein the rotor pole is extended in the direction of the stator to produce the conical air gap between the stator and the at least one magnet.6. The motor of claim 1 , wherein the coil is tapered in the radial direction.7. The motor of claim 1 , wherein the at least one core is formed on a surface of the stator to form a slotless stator.8. The motor of claim 1 , wherein the rotor comprises a first rotor portion and a second rotor portion.9. The motor of claim 1 , wherein the stator comprises at least a first stator portion and a second stator portion.10. A motor claim 1 , comprising:a slotless stator comprising at least one core formed of a soft ...

VOICE COIL ACTUATOR DIRECT-DRIVE RESONANT SYSTEM

Disclosed herein is a voice coil actuator direct-drive resonant flapper system for flapping wing micro air vehicles and flapping fin autonomous underwater vehicles. 1. An actuator , comprising:a stator comprising at least one yoke;at least one permanent magnet, wherein the at least one permanent magnet is coupled to the stator;at least one rotor, the rotor comprises at least one coil winding, wherein the rotor is moving within the magnetic field(s) generated by the permanent magnets;at least one appendage, wherein the at least one appendage is coupled to the rotor; andan optional spring element, wherein the spring element is coupled between the rotor and the stator.2. The actuator of claim 1 , wherein the plurality of permanent magnets comprises two permanent magnets claim 1 , and wherein a first permanent magnet is coupled to a first yoke and the second permanent magnet is coupled to a second yoke.3. The actuator of claim 1 , wherein the plurality of permanent magnets comprises one permanent magnet claim 1 , and wherein the permanent magnet has reverse polarity at two ends claim 1 , and a yoke on the opposite of the permanent magnet to return the magnetic flux.4. The actuator of claim 3 , wherein the permanent magnet is coupled to a yoke.5. The actuator of claim 1 , wherein the plurality of permanent magnets comprises four permanent magnets claim 1 , and wherein two permanent magnets are coupled to a first yoke and the other two permanent magnets are coupled to a second yoke.6. The actuator of claim 1 , wherein the permanent magnets comprises multiple permanent magnets.7. The actuator of claim 3 , wherein the permanent magnets comprises multiple permanent magnets.8. The actuator of claim 1 , wherein the optional spring element comprises a spring coupled to a rotating shaft.9. The actuator of claim 1 , wherein the optional spring element comprises a spring coupled to a translating shaft.10. The actuator of claim 1 , wherein the spring element comprises a flexible ...

DEVICE INCLUDING AN ELECTRIC MACHINE WITH A LIGHTWEIGHT DESIGN

An active part () of an electric machine () is connected to a supporting body () via a connecting structure and is fixed relative to the supporting body (). A rotor () of the electric machine interacts electromagnetically with a stator core () and is mounted rotatably relative to the stator core () so that the rotor () is rotatable about an axis of rotation (). The connecting structure comprises at least one hub (), a supporting ring () and first and second struts (). The hub () surrounds the axis of rotation () and extends in the axial direction from an upper hub end () to a lower hub end (). The hub () adjoins, with the upper hub end (), the supporting body () and is fastened there to the supporting body (). The supporting ring (), on the outer side () thereof, adjoins the active part () and is connected to the active part (). The first struts () extend in a radial plane () radially outwards from the lower hub end () to the supporting ring (). The first struts () merge with the hub () in a respective radially inner transition region () and with the supporting ring () in a respective radially outer transition region (). The second struts () extend from the upper hub end () to the supporting ring (). In relation to the radial plane (), the radially inner transition region () and the radially outer transition region () of a respective first strut () each form an angle (a) with the axis of rotation (). 1. A device , comprising:a support body; andan electric machine, an active part of the electric machine being connected to the support body, and fixed relative to the support body, via a connecting structure,wherein the electric machine comprises a rotor that electromagnetically interacts with a stator pack and is mounted so as to be rotatable relative to the stator pack, such that the rotor is rotatable about an axis of rotation,wherein the connecting structure comprises at least a hub, a support ring, first struts, and second struts,wherein the hub surrounds the axis ...

LINEAR ELECTRIC ACTUATOR FOR STEERING SYSTEMS

A linear electric actuator for steering systems includes: a casing, an electric motor, housed in the casing, which is provided with a stator and a hollow rotor internally concentric to the stator, a holder nut internally fixed to the rotor, and a stem having a thread coupled to the holder nut. The stem includes a first portion provided with a surface treatment, which projects outside the casing, and a second portion without said surface treatment, which is contained inside the casing and in which the thread is obtained. 110. A linear electrical actuator () for steering systems comprising:{'b': '20', 'a casing (),'}{'b': 50', '20', '55', '60', '55, 'an electric motor (), housed in the casing (), which is provided with a stator () and a hollow rotor () internally concentric to the stator (),'}{'b': 80', '60, 'a holder nut () internally fixed to the rotor (), and'}{'b': 85', '90', '80', '85', '105', '20', '120', '20', '90, 'a stem () having a thread () coupled to the holder nut (), the stem () comprising a first portion () provided with a surface treatment, which projects outside the casing (), and a second portion () without said surface treatment, which is contained inside the casing () and in which said thread () is obtained.'}210. The actuator () according to claim 1 , wherein the surface treatment is a treatment with addition of material.310. The actuator () according to claim 2 , wherein the surface treatment with addition of material claim 2 , is a chrome-plating treatment.410. The actuator () according to claim 1 , wherein the surface treatment is a thermochemical conversion treatment.51020304010585. The actuator () according to claim 1 , wherein the casing () comprises a head () provided with a cylindrical opening () wherein there is slidably inserted and from which there projects part of the first portion () of the stem ().61030. The actuator () according to claim 5 , wherein the head () is made of steel.7104085. The actuator () according to claim 6 , further ...

POLY GAP TRANSVERSE FLUX MACHINE

The present invention relates to an improved electric machine which, when operating in motor mode, produces rotational torque without using alternating magnetic polarity, but rather magnetic flux that utilizes coils arranged in a dipolar manner around an axial plane and independently removable stators. 1. An electric motor comprisinga. at least one annular stator assembly, said assembly comprising a plurality of independently removable stator elements, each stator element comprising at least one winding adapted for conducting a current to magnetize said element,b. a shaft positioned along the axis of said stator assembly;c. at least one rotor member positioned on said shaft juxtaposed with said annular stator assembly, said rotor comprising n rotor lobes, where n is greater than 1;d. detecting means for detecting the position of said rotor in relationship to stator members; ande. a control means for receiving at least a first input from said rotational detecting means for controlling input into selected stator members in response to said detecting means and including means for providing current to at least one stator coil in response to said detecting means.2. An electrical machine set forth in wherein at least a second rotor is positioned adjacent said stator member.3. An electrical machine set forth in wherein said stator is a removable cylindrical member having no back iron.4. An electrical machine set forth in wherein said rotor comprises a spiral wound lamination strip with notched areas which recede from the rotor face poles.5. An electrical machine set forth in wherein said rotor is comprised of pressed powdered metal.6. An electrical machine set forth in wherein said rotor is comprised of solid metal with permanent magnets attached as rotor faces.7. An electrical machine set forth in wherein said rotor is comprised of pressed powdered metal with permanent magnets attached as rotor faces. This application is a continuation-in-part application of U.S. patent ...

MOTOR ROTOR STRUCTURE FOR ELECTRIC TURBO CHARGER AND METHOD OF ASSEMBLING SAME

A motor rotor structure for an electric turbo charger is manufactured at low cost with good quality by fixedly fitting, over a shaft, a rotor core having electromagnetic steel sheets pre-formed as an integrated stack. The rotor structure includes a rotor core which is rotated by a magnetic field formed by a stator in a housing; a shaft configured to rotate a compressor impeller and the rotor core together; and a bearing supporting the shaft. The rotor includes the rotor core including the electromagnetic steel sheets; a stopper portion formed at an intermediate portion of the shaft to restrict axial movement of the rotor core; and a pressing unit which presses the rotor core fitted over the shaft against the stopper portion. The pressing unit prevents a circumferential phase shift between the shaft and the rotor core by a pressing force thereof. 1. A motor rotor structure for an electric turbo charger , comprising:a compressor impeller placed in a housing and configured to compress intake air from an air cleaner;a rotor core rotated by a magnetic field formed by a stator placed in the housing;a shaft configured to rotate the compressor impeller and the rotor core together; anda bearing mounted on a bearing support portion formed in the housing and configured to support the shaft rotatably, whereinthe motor rotor includes: the rotor core which comprises electromagnetic steel sheets stacked in a thrust direction of the shaft and pre-formed as an integrated member; a stopper portion which is formed on the shaft to restrict movement of the rotor core fitted over the shaft in the thrust direction; and a pressing unit which presses the rotor core against the stopper portion,the pressing unit preventing by a pressing force thereof a circumferential phase shift between the shaft and the rotor core.2. The motor rotor structure for an electric turbo charger according to claim 1 , whereinthe rotor core has, at one end surface of the stacked electromagnetic steel sheets, a ...

DYNAMO

A dynamo is provided. The dynamo includes a rotor and a stator unit. The rotor includes a rotor body and a plurality of magnetic elements, wherein each two adjacent magnetic elements have different magnetic poles. The stator unit includes at least one stator, with the stator including a stator body, a plurality of slots and a plurality of amature windings, wherein the slots are formed on the stator body and face the rotor, the amature windings are wound on the slot, and the slots on the stator body are arranged in a curve and correspond to a portion of the circumferential region of the rotor. 1. A dynamo , comprising:a rotor, comprising a rotor body and a plurality of magnetic elements, wherein each two adjacent magnetic elements have different magnetic poles; anda stator unit, comprising at least one stator, the stator comprising a stator body, a plurality of slots and a plurality of amature windings, wherein the slots are formed on the stator body and face the rotor, the amature windings are wound on the slot, and the slots on the stator body are arranged in a curve and correspond to a portion of the circumferential region of the rotor.2. The dynamo as claimed in claim 1 , wherein the area of the slots on the stator body corresponding to the rotor is less than or equal to four-fifths of the circumferential region of the rotor.3. The dynamo as claimed in claim 1 , wherein the area of the slots on the stator body corresponding to the rotor is less than or equal to two-thirds of the circumferential region of the rotor.4. The dynamo as claimed in claim 1 , wherein the area of the slots on the stator body corresponding to the rotor is less than or equal to half of the circumferential region of the rotor.5. The dynamo as claimed in claim 1 , wherein the area of the slots on the stator body corresponding to the rotor is less than or equal to quarter of the circumferential region of the rotor.6. The dynamo as claimed in claim 1 , wherein the stator unit comprises a first ...

Rotary electrical machine

A rotary electrical machine has a first annular body and a second annular body that face opposite each other with a coil interposed therebetween, either the first annular body or the second annular body being provided with a permanent magnet, the first annular body and/or the second annular body rotating about the axis of a rotating shaft, and the driving force of a motor being extracted through the rotating first annular body or second annular body or through the axis of the rotating shaft rotating with the rotating first annular body or second annular body.

Armature of coreless linear motor and coreless linear motor using the same

The invention relates to a coreless linear motor and a method for manufacturing the same. The armature according to the invention comprises: an armature winding having at least one unit coil row which is formed by overlapping a plurality of coil rows; and a molded portion which surrounds the armature winding; wherein each coil row has a first coil portion and a second coil portion which have opposite winding directions; and wherein the plurality of coil rows which forms one unit coil row are overlapped such that the first coil portions are arranged in order and the second coil portions are arranged in order. Accordingly, the coil rows overlapped inside allow higher output with the same size.

Stator plate packet, electrical machine and vehicle

A stator plate packet (7, 7a, 7b) for a stator (5) of an electrical machine (1) is described, which comprises several stator plates (6) stacked one against the other and with stator grooves (13) open towards the inside for receiving a stator winding (8), wherein the stator plates (6) are welded together by means of a plurality n of external weld seams (14) or weld seam portions which are evenly distributed over the periphery of the stator plate packet (7, 7a, 7b). The weld seams (14) or weld seam portions each run from a first end face (B) of the stator plate packet (7) to a second end face (C) of the stator plate packet (7) and each extend over an angle (α) with respect to the rotational axis (A) of the electrical machine (1). The angle (α) lies in a range of α≥360°/n−10%. Furthermore, an electrical machine (1) with such a stator plate packet (7, 7a, 7b) or stator (4), and a vehicle (15) with such an electrical machine (1), are described.

Motor

The present invention relates to a motor comprising: a motor housing; a stator which is provided in the motor housing and has a coil; a rotor installed in the stator to be rotatable about a rotary shaft; and a spray hole which is formed in the circumferential surface of the rotor by passing through the circumferential surface in a radial direction and which sprays a cooling fluid in the motor housing onto the coil according to the rotation of the rotor. Therefore, cooling by oil convection can be accelerated while minimizing resistance due to the oil.

Stator, motor and pump device

A stator is provided. In this stator, a stator core comprises: an outer peripheral ring part formed in a ring shape; and multiple salient pole parts protruded from the outer peripheral ring part to an inner side in a radial direction of the stator. The outer peripheral ring part comprises outer peripheral parts in a same number as multiple salient pole parts. When an outer side face of the outer peripheral part in the radial direction is an outer peripheral face, both end side portions in the circumferential direction of the outer peripheral face of one of the outer peripheral parts are respectively formed to be a curved face part in a convex curved face shape which is a circular arc shape, curvature radii of the circular arc shapes are equal to each other and their curvature centers are common when viewed in an axial direction of the stator.

Rotor assembly and motor including the same

A rotor assembly includes a shaft with a central axis extending along an up and down direction as a center, and a cylindrical rotor main body fixed to an outer surface of the shaft, and the rotor main body includes core pieces arranged around the shaft in a circumferential direction, rotor magnets alternately arranged with the core pieces around the shaft in the circumferential direction, and a connection portion made of resin and connecting the shaft to the core pieces and the rotor magnets. Each of the rotor magnets includes an engagement region covered by the connection portion of the rotor magnet surface, and an exposed region including an outer surface positioned outward of the rotor magnet surface in a radial direction and is exposed from the connection portion.

Motor

A motor includes a shaft with a central axis along an up and down direction as a center, a bearing mechanism rotatably supporting the shaft; a cylindrical rotor main body fixed to the shaft; a rotor fan fixed to the shaft at an upper side of the rotor main body; an armature facing the rotor main body in a radial direction; and a housing accommodating the rotor main body, the rotor fan, and the armature therein. The bearing mechanism includes a first bearing above the rotor fan in the housing and facing the rotor fan in the up and down direction and a second bearing positioned below the rotor main body. The housing includes a first opening, a second opening, and a bearing holding portion.

Motor

A motor includes a shaft, a bearing mechanism rotatably supporting the shaft, a cylindrical rotor main body fixed to the shaft, a rotor fan fixed to the shaft, an armature, and a housing. The bearing mechanism includes a first bearing above the rotor fan in the housing and facing the rotor fan in an up and down direction. The housing includes a first opening, a second opening, and a bearing holding portion. A cylindrical wind tunnel portion is outward of the rotor fan in a radial direction. An inner surface of the wind tunnel portion and the rotor fan face each other in the radial direction. An upper end portion of the inner surface of the wind tunnel portion and an outer surface of the bearing holding portion face each other in the radial direction.

ROTOR CONSTRUCTION FOR HIGH SPEED MOTORS

A rotor shaft for a high speed motor that has a coating that is secured to a shaft body. The coating and the shaft body are formed from dissimilar materials. More specifically, the coating may be an alloy material, such as, for example, a copper alloy, while the shaft body may be a steel material. According to certain embodiments, the alloy material of the coating may be secured to at least a portion of a rotor body blank in a solution treated condition via a low temperature welding procedure. Additionally, the coating may be hardened, such as for example, through the use of an age hardening process. The coating and the rotor body blank may be machined together to form the rotor shaft. According to certain embodiments, such machining may configure the rotor shaft for use with a turbo-compressor that is configured for air compression. 121-. (canceled)22. A method for manufacturing a rotor shaft for a high speed motor , the method comprising:forming a rotor body blank from a steel material;solution heat treating an alloy material, wherein a duration of heat treating the alloy material is dependent on a thickness of the alloy material, the alloy material and the steel material of the rotor body blank being different materials;securing the solution treated alloy material to at least a portion of the rotor body blank to provide a coating;heat treating the coating when the coating is secured to the rotor body blank, the heat treating process adapted to minimize the loss of a core property of the steel material of the rotor body blank; andmachining the rotor body blank and the coating to form the rotor shaft, the rotor shaft configured for operation in the high speed motor.23. The method of claim 22 , wherein the duration of heat treating the alloy material ranges from three minutes to three hours.24. The method of claim 22 , wherein the alloy material is a copper alloy.25. The method of claim 24 , wherein the step of securing the alloy material includes using a low ...

POWER GENERATING SYSTEMS HAVING SYNCHRONOUS GENERATOR MULTIPLEX WINDINGS AND MULTILEVEL INVERTERS

Multiplex winding synchronous power generating systems and vehicle power systems are provided that include a rotating part including a plurality of windings, a primer mover configured to drive the rotating part, a stator part having a plurality of windings, a plurality of rectifiers, three 3-phase 5-level motor drives, at least one H-bridge, at least one 3-phase AC motor, and a generator voltage regulator that regulates current of voltages of local DC busses of the three 3-phase 5-level motor drives. 1. A multiplex winding synchronous power generating system , comprising:a rotating part including a plurality of windings;a primer mover configured to drive the rotating part;a stator part having a plurality of windings;a plurality of rectifiers;three 3-phase 5-level motor drives;at least one H-bridge;at least one 3-phase AC motor; anda generator voltage regulator that regulates current of voltages of local DC busses of the three 3-phase 5-level motor drives.2. The multiplex winding synchronous power generating system of claim 1 , wherein the plurality of rectifiers comprise passive or active rectifiers.3. The multiplex winding synchronous power generating system of claim 1 , wherein the prime mover is an internal combustion engine.4. The multiplex winding synchronous power generating system of claim 1 , wherein the plurality of rectifiers are housed within a housing of the stator part.5. The multiplex winding synchronous power generating system of claim 4 , wherein the stator part claim 4 , the rectifiers claim 4 , and the rotating part are all housed within the same housing.6. The multiplex winding synchronous power generating system of claim 1 , further comprising a plurality of batteries electrically connected to the local DC busses and consequently to the three 3-phase 5-level motor drives.7. The multiplex winding synchronous power generating system of claim 1 , wherein the at least one 3-phase AC motor is three 3-phase AC motors and each of the three 3-phase AC ...

INDIVIDUAL-SEGMENT ROTOR HAVING INDIVIDUAL SEGMENTS RETAINED BY FLEXURAL SUPPORTS AND PRODUCTION METHOD

The aim is to provide an individual-segment rotor, the construction of which requires low production expenditure. For this purpose, an individual-segment rotor having an axis of rotation and a plurality of laminated core segments () arranged around the axis of rotation is provided. Each laminated core segment () is radially fastened to a separate flexural support (). All flexural supports () are radially retained by at least one fastening ring (). 111.-. (canceled)12. An individual-segment rotor , comprising:a plurality of laminated core segments arranged about an axis of rotation;a plurality of separate flexural supports, each of the flexural supports configured for radially fastening the laminated core segments in one-to-one correspondence;at least one fastening ring configured to radially retain the plurality of flexural supports and to press the flexural supports radially outwardly; anda sleeve configured to positively retain the plurality of laminated core segments in a radial direction and having a relative permeability which is below 5.13. The individual-segment rotor of claim 12 , wherein the plurality of flexural supports have a strip-shaped configuration claim 12 , each flexural support configured to protrude from both front faces of a corresponding one of the laminated core segments.14. The individual-segment rotor of claim 12 , wherein the plurality of flexural supports are positively fastened in the laminated core segments.15. The individual-segment rotor of claim 12 , wherein the plurality of flexural supports are fastened in the laminated core segments by a material connection.16. The individual-segment rotor of claim 12 , wherein the plurality of laminated core segments are positively retained in a circumferential direction on the sleeve.17. A method for producing an individual-segment rotor claim 12 , comprising:arranging a plurality of laminated core segments around an axis of rotation;radially fastening the laminated core segments to a plurality ...

ELECTRIC MOTOR

An electric motor includes a yoke having six magnetic poles; a rotary shaft which is provided inside the yoke in a freely rotatable manner; an armature core () which has teeth () attached to the rotary shaft, radially extending in a radial direction and set in an arrangement of an even number, and an even number of slots () formed between the teeth; an armature coil () which is wound around the teeth in a single wave winding; and a commutator () which is provided in the rotary shaft to be adjacent to the armature core () and has a plurality of circumferentially disposed segments () to which the armature coil () is connected. 1. An electric motor comprising:a yoke having six magnetic poles;a rotary shaft which is provided inside the yoke in a freely rotatable manner;an armature core which has teeth attached to the rotary shaft, radially extending in a radial direction and set in an arrangement of an even number, and an even number of slots formed between the teeth;a coil which is wound around the teeth in a single wave winding; anda commutator which is provided in the rotary shaft to be adjacent to the armature core and has a plurality of circumferentially disposed segments to which the coil is connected.2. The electric motor according to claim 1 , wherein the coil wired between the armature core and the commutator is wound around the rotary shaft.3. The electric motor according to or claim 1 , further comprising:a pair of brushes which come into slide contact with the segments to supply electric power to the coil,wherein the pair of brushes are disposed opposite around the rotary shaft.4. The electric motor according to or claim 1 , further comprising:three brushes including a low-speed brush, a high-speed brush and a common brush, the low-speed brush and the high-speed brush coming into slide contact with the segments to supply the electric power to the coil, and the common brush being commonly used with the low-speed brush and the high-speed brush.5. The electric ...

MAGNET ARRANGEMENT FOR CLAW-POLE ELECTRIC MACHINE

An electric machine comprises a stator and a rotor configured to rotate about an axis of rotation in a direction of angular rotation. The rotor includes a first claw-pole segment and an opposing second claw-pole segment. The first claw-pole segment includes a plurality of first fingers extending from a first end member with an opening between each of the plurality of first fingers. The second claw-pole segment includes a plurality of second fingers extending from a second end member with an opening between each of the plurality of second fingers. A plurality of magnets are positioned on the rotor, each of the plurality of magnets positioned between a pair of first and second fingers. A molded plastic insert is positioned on the rotor, the molded plastic insert positioned in one of the openings and extending over an outer surface of each of the plurality of magnets. 1. An electric machine comprising:a stator;a rotor configured to rotate about an axis of rotation in a direction of angular rotation, the rotor including a first claw-pole segment and an opposing second claw-pole segment, the first claw-pole segment including a plurality of first fingers extending from a first end member with an opening between each of the plurality of first fingers, and the second claw-pole segment including a plurality of second fingers extending from a second end member with an opening between each of the plurality of second fingers;a plurality of magnets positioned on the rotor, each of the plurality of magnets positioned between a pair of first and second fingers; anda molded plastic insert positioned on the rotor, the molded plastic insert extending into one of the openings and extending over an outer surface of at least one of the plurality of magnets.2. The electric machine of wherein the molded plastic insert extends over at least 10% of the outer surface of the one of the plurality of magnets.3. The electric machine of wherein the outer surface of each of the plurality of ...

ROTOR CARRIER AND FLANGE ASSEMBLY

A rotor assembly includes a torque converter including a housing forming a hydraulic chamber, a rotor for an electric motor, a rotor carrier non-rotatably connected to the rotor that is fixed to the torque converter housing, a rotor carrier flange, a spring, and a snap ring. In some embodiments, the rotor carrier includes a groove and a castellated portion, the snap ring is disposed in the groove, and the spring clamps the rotor carrier flange between the snap ring and the castellated portion. 1. A rotor assembly , comprising:a torque converter including a housing forming a hydraulic chamber;a rotor for an electric motor;a rotor carrier non-rotatably connected to the rotor, wherein the rotor carrier is fixed to the torque converter housing;a rotor carrier flange;a spring; and, the rotor carrier includes a groove and a castellated portion;', 'the snap ring is disposed in the groove; and,', 'the spring clamps the rotor carrier flange between the snap ring and the castellated portion., 'a snap ring, wherein2. The rotor assembly of wherein the spring is a diaphragm spring.3. The rotor assembly of wherein the spring is disposed axially between the snap ring and the rotor carrier flange.4. The rotor assembly of claim 1 , further comprising a retention element disposed between the spring and the snap ring.5. The rotor assembly of wherein:the retention element is a shim having at least one tab; and,the at least one tab is bent toward the snap ring such that the at least one tab contacts at least a portion of the snap ring to secure the snap ring in the groove.6. The rotor assembly of wherein the spring includes at least one retaining tab positioned under the snap ring to secure the snap ring in the groove.7. The rotor assembly of wherein the at least one retaining tab is integrally formed with the spring.8. A rotor assembly claim 6 , comprising:a torque converter including a housing forming a hydraulic chamber;a rotor for an electric motor;a rotor carrier non-rotatably ...

ELECTRICAL MACHINES AND FABRICATION METHODS THEREFOR

An electrical machine includes a stator and a rotor in magnetic communication with the stator. The stator and/or the rotor include a unitary structure having a plurality of laminations and a plurality of spacing structures integral with the plurality of laminations. Each lamination of the plurality of laminations is disposed adjacent to another lamination of the plurality of laminations. Each spacing structure of the plurality of spacing structures is disposed between adjacent laminations, and is constructed to space the adjacent laminations apart from each other. 1. An electrical machine , comprising:a stator; anda rotor in magnetic communication with the stator,wherein one of the stator and the rotor include a unitary structure having a plurality of laminations and a plurality of spacing structures integral with the plurality of laminations, each lamination of the plurality of laminations disposed adjacent to another lamination of the plurality of laminations; and each spacing structure of the plurality of spacing structures being disposed between adjacent laminations and configured to space the adjacent laminations apart from each other.2. The electrical machine of claim 1 , further comprising a shaft formed as part of the unitary structure claim 1 , wherein the shaft is integral with the rotor.3. The electrical machine of claim 2 , wherein the shaft is hollow.4. The electrical machine of claim 1 , wherein some of the laminations include openings therethrough that form passages extending at least partway through the unitary structure.5. The electrical machine of claim 4 , further comprising windings disposed within some of the passages.6. The electrical machine of claim 1 , wherein one of the spacing structures is a spacing grid having a plurality of standoffs integral with and extending between each adjacent lamination.7. The electrical machine of claim 1 , wherein the spacing structures have a geometry configured to reduce eddy currents between the laminations. ...

LIGHT-TYPE CONVERSION DRIVING DEVICE FOR CAR LAMP LIGHT-TYPE CONVERSION DEVICE AND CONVERSION METHOD THEREFOR

A light-type conversion driving device for a car lamp light-type conversion device, comprises a shell, a rotor, a stator, a rotating shaft and end covers. The stator and stator windings inside the shell constitute a pair of arc-shaped stator magnetic poles capable of being electrically excited. The rotor is an arc-shaped permanent magnet, is fixed on the rotating shaft, and is arranged in a magnetic field space of the arc-shaped magnetic poles of the stator. The rotor is matched with the arc-shaped stator magnetic poles to form a closed magnetic circuit with an air gap. Two ends of the rotating shaft are respectively connected with an oscillating bar which extends in the radial direction of the rotating shaft. 1. A light-type conversion driving device for a car lamp light-type conversion device , used for driving a shading plate of a car lamp light-type conversion device to oscillate , comprising stator cores and stator windings fixedly arranged inside a shell , and a rotating shaft subassembly arranged in a magnetic field space of stator magnetic poles , wherein:the stator cores and the stator windings constitute a pair of arc-shaped stator magnetic poles capable of being electrically excited;the rotating shaft subassembly has a sectorial section, is arranged in the magnetic field space of the arc-shaped stator magnetic poles, and is matched with the arc-shaped stator magnetic poles to form a closed magnetic circuit with an air gap;the rotating shaft subassembly comprises:a rotating shaft;arc-shaped crown magnetic steel arranged on an outer circumferential surface of a top of the sectorial rotating shaft subassembly; anda connecting part fixedly connected with the rotating shaft and the arc-shaped crown magnetic steel;the arc-shaped crown magnetic steel of the rotating shaft subassembly has a sectorial central angle of 80-200° and a sectorial diameter of ϕ5˜12 mm; andthe rotating shaft subassembly oscillates around the rotating shaft with a center of the rotating ...

Electric motor having an approximated ellipsoid shaped rotor

In one embodiment, a motor has a rotor with an approximated ellipsoid shape defined by a plurality of lattice lines and a plurality of lattice points. The motor has a matching stator that is configured to be utilized in conjunction with the approximated ellipsoid shaped rotor and to accommodate the approximated ellipsoid shaped rotor. The motor may also includes a housing unit configured to hold the matching stator that is utilized in conjunction with the approximated ellipsoid shaped rotor, and an enclosure lid configured to be used by the housing unit. The enclosure lid may be configured to hold the rotor having the approximated ellipsoid shape with a bearing.

HIGH-SPEED ELECTRIC MOTOR

This electric motor comprises a stator () and a rotor () able to turn at a rate of rotation of greater than 8000 revolutions per minute, said rotor () comprises a magnetic body () carried by a rotation shaft (), the magnetic body () delimiting an external lateral surface (). The motor comprises a protective cladding () on the exterior lateral surface () of the magnetic body (). 1. An electric motor , comprising:a stator;a rotor capable of rotating at speeds in excess of 8000 rpm, the rotor comprising a magnetic body, carried by a rotating shaft, wherein the magnetic body defines an outer lateral surface; anda protective coating on the outer lateral surface of the magnetic body, wherein the thickness of the protective coating is between 0.1 mm and 2 mm.2. The electric motor according to claim 1 , wherein the protective coating is formed from polyether ether ketone (PEEK).3. The electric motor according to claim 1 , wherein the protective coating comprises between 5% and 25% polyether ether ketone (PEEK).4. The electric motor according to claim 1 , wherein the magnetic body comprises a stack of plates wherein sides of the stack of plates combine to form the outer lateral surface claim 1 , and the protective coating covers the sides.5. The electric motor according to claim 1 , further comprising an intermediate nickel alloy between the outer lateral surface of the magnetic body and the protective coating.6. The electric motor according to claim 1 , wherein the rotor further comprises bars connected by end rings arranged axially on both sides of the magnetic body claim 1 , and the protective coating covers the end rings.7. The electric motor according to claim 1 , wherein the protective coating consists of SKIDCOAT.8. The electric motor according to claim 1 , wherein a surface of the protective coating is mechanically ground.9. A process of manufacturing an electric motor claim 1 , the electric motor including a stator claim 1 , a rotor capable of rotating at speeds in ...

ROTARY ELECTRIC ROTOR AND METHOD OF MANUFACTURING ROTARY ELECTRIC ROTOR

A rotary electric rotor includes a rotor core having a shaft through-hole; a rotor shaft having a male screw portion on its first side; a washer having an annular structure with cutouts elastically deformable in a radial direction, having a washer tapered surface, and having an annular projection portion that extends in an axial direction from an end surface and is fixed to the rotor core in a state of being disposed in a gap between an inner circumferential surface of the shaft through-hole and an outer circumferential surface of the rotor shaft and pressing the inner circumferential surface of the shaft through-hole, the end surface and the washer tapered surface are opposite surfaces of the washer; and a nut having a female screw portion that meshes with the male screw portion and having a nut tapered surface that faces the washer tapered surface. 1. A rotary electric rotor comprising:a rotor shaft having a male screw portion on a first side in an axial direction of the rotor shaft and having a core receiving portion on a second side in the axial direction of the rotor shaft;a rotor core having a shaft through-hole for the rotor shaft, in which the rotor shaft is inserted into the shaft through-hole of the rotor core, and one end portion of the rotor core is in contact with the core receiving portion of the rotor shaft;a washer having an annular structure, in which the washer has cutouts configured to cause the washer to be elastically deformable in a radial direction, the washer is disposed so as to be in contact with a second end surface of the rotor core, a surface on an opposite side of a surface of the washer in contact with the second end surface of the rotor core is a tapered surface of which a side disposed radially outward from the rotor shaft is configured to be farther from the second end surface of the rotor core than a side disposed radially inward to the rotor shaft, the surface of the washer in contact with the second end surface of the rotor core ...

NESTED DUAL MOTOR/GENERATOR

A number of variations may include a product comprising a first motor or generator comprising a first stator located within a first rotor, and a first shaft operatively connected to the first rotor; a second motor comprising a second stator surrounding a second rotor, and a second shaft operatively connected to the second rotor; and wherein the second motor is nested within the first motor or generator. 1. A product comprising:a first motor or generator comprising a first stator located within a first rotor, and a first shaft operatively connected to the first rotor;a second motor comprising a second stator surrounding a second rotor, and a second shaft operatively connected to the second rotor; andwherein the second motor is nested within the first motor or generator.2. The product of further comprising a housing claim 1 , wherein the housing is constructed and arranged to accommodate the first motor or generator and the second motor.3. The product of further comprising a cooling jacket integrated within the housing claim 2 , and wherein the cooling jacket is constructed and arranged to cool the first motor or generator and the second motor.4. The product of further comprising a first cover and a second cover claim 2 , wherein the first cover is attached to a first side of the housing and the second cover is attached to a second side of the housing.5. The product of wherein the housing is cylindrical and wherein the housing comprises a cylindrical bore defined by an inner surface and an outer surface claim 2 , wherein the inner surface forms a first cylindrical cavity constructed and arranged to house the second motor claim 2 , and wherein the outer surface forms a second cylindrical cavity constructed and arranged to house the first motor or generator.6. The product of further comprising a cooling jacket located between the inner surface and the outer surface.7. The product of wherein the first rotor is operatively attached to the first shaft through at least one ...

VEHICLE WHEEL-BASED POWER GENERATION AND DISPLAY SYSTEMS

A power generation system is provided configured for installation within a wheel of a vehicle. The system includes a stator having a plurality of face-mounted permanent magnets; and a rotor having a plurality of windings configured to rotate, with rotation of the wheel, in proximity to the permanent magnets thereby generating a current. The stator is mounted to a brake caliper of the vehicle. Also provided is a wheel-based vehicle display system including a light emitting diode (LED) array arranged on or within a wheel of a vehicle; a power source connected thereto; and a controller connected to the LED array. The display system is configured to display at least one of: textual information, visual images or full-motion video. 1. A power generation system configured for installation within a wheel of a vehicle , the system comprising a stator comprising a plurality of face-mounted permanent magnets; and a rotor having a plurality of windings configured to rotate , with rotation of the wheel , in proximity to the permanent magnets thereby generating a current , wherein the stator is mounted to a brake caliper of the vehicle.2. The power generation system of claim 1 , further comprising a battery claim 1 , wherein the current generated is stored in the battery.3. The power generation system of claim 1 , wherein the stator is mounted to a bracket claim 1 , which is mounted to the brake caliper of the vehicle.4. The power generation system of claim 3 , wherein the magnets of the stator are mounted to a disc claim 3 , which is mounted to the bracket.5. The power generation system of claim 4 , wherein the mounting disc is made of steel.6. The power generation system of claim 4 , wherein the magnets are wedge-shaped.7. The power generation system of claim 1 , wherein the rotor is comprised of copper windings in a sunflower configuration.8. The power generation system of claim 1 , wherein the rotor is a single-phase rotor and comprises a steel backing for the coils.9. The ...

Rotor construction for high speed motors

A rotor shaft for a high speed motor that has a coating that is secured to a shaft body. The coating and the shaft body are formed from dissimilar materials. More specifically, the coating may be an alloy material, such as, for example, a copper alloy, while the shaft body may be a steel material. According to certain embodiments, the alloy material of the coating may be secured to at least a portion of a rotor body blank in a solution treated condition via a low temperature welding procedure. Additionally, the coating may be hardened, such as for example, through the use of an age hardening process. The coating and the rotor body blank may be machined together to form the rotor shaft. According to certain embodiments, such machining may configure the rotor shaft for use with a turbo-compressor that is configured for air compression.

DOUBLE-ROTOR TYPE ELECTRICAL ROTATING MACHINES

An electrical rotating machine comprises: a stator including armature pole coils capable of generating magnetic flux when energized; an inner rotor driven to rotate when the magnetic flux passes therethough; and an outer rotor in a magnetic path of the magnetic flux that passes through the first rotor, the outer rotor having portions of different materials, in permeability, which are situated along the periphery of the outer rotor, the inner rotor having a plurality of salient poles situated along the periphery of the inner rotor and wound by wound coils which induce induced current when linked by the magnetic flux generated by the armature pole coils. 1. An electrical rotating machine comprising:a stator including armature pole coils capable of generating magnetic flux when energized;a first rotor driven to rotate when the magnetic flux passes therethough; anda second rotor driven to rotate in a magnetic path of the magnetic flux that passes through the first rotor, whereinthe second rotor includes portions of different materials, in permeability, which are situated along the periphery of the second rotor, andthe first rotor includes a plurality of salient poles situated along the periphery of the first rotor and wound by induction coils which induce induced current when linked by the magnetic flux generated by the armature pole coils.2. The electrical rotating machine as recited in claim 1 , whereinthe first rotor includes diodes arranged to rectify the induced current,the induction coils wind the plurality of salient poles in the same direction, andthe diodes are alternately reversed in direction of rectification per salient pole along the periphery of the first rotor so that the adjacent two diodes have one and the opposite directions of rectification, respectively.3. The electrical rotating machine as recited in claim 2 , whereinthe first rotor includes a permanent magnet which is arranged in a way that the direction of magnetization by the permanent magnet is ...

ROTOR AND MOTOR

A rotor includes a first rotor core, a second rotor core, a permanent magnet and a resin layer. The first rotor core includes a first core base and first claw-shaped magnetic poles arranged at equal intervals on a peripheral portion of the first core base. The second rotor core includes a second core base and second claw-shaped magnetic poles arranged at equal intervals on a peripheral portion of the second core base. The first rotor core and the second rotor core are combined with each other so that the first and second core bases are opposed to each other and the first and second claw-shaped magnetic poles are alternately arranged in the circumferential direction of the rotor. The permanent magnet includes at least a main field magnet. The main field magnet is located between the first and second core bases in the axial direction, and is magnetized in the axial direction. The main field magnet causes the first claw-shaped magnetic poles to function as first magnetic poles, and causes the second claw-shaped magnetic poles to function as second magnetic poles. The resin layer covers at least a portion of a surface of the permanent magnet. 1. A rotor comprising:a first rotor core including a substantially disk-shaped first core base and a plurality of first claw-shaped magnetic poles arranged at equal intervals on a peripheral portion of the first core base, wherein each of the first claw-shaped magnetic poles projects outward in the radial direction and extends in the axial direction;a second rotor core including a substantially disk-shaped second core base and a plurality of second claw-shaped magnetic poles arranged at equal intervals on a peripheral portion of the second core base, wherein each of the second claw-shaped magnetic poles projects outward in the radial direction and extends in the axial direction, and the first rotor core and the second rotor core are combined with each other so that the first and second core bases are opposed to each other and the ...

Cooling fan and electronic device using the same

A cooling fan includes a base, a stator and an rotator, one end of the stator is fixed to the base, the other end of the stator forms a shaft, the rotator is mounted to the shaft, an end of the shaft protrudes out of the rotator, each of the rotator and the shaft is <same as claims> an electromagnet driving unit matching each other, the rotator is driven to rotate by the electromagnet driving unit. An electronic device using such a cooling fan is further disclosed.

SOFT MAGNETIC MATERIAL, ROTATING ELECTRIC MACHINE, MOTOR, AND GENERATOR

The soft magnetic material of embodiments includes flattened magnetic metal particles including at least one magnetic metal selected from iron (Fe), cobalt (Co) and nickel (Ni), each of the flattened magnetic metal particles having a thickness of from 10 nm to 100 μm, an aspect ratio of from 5 to 10,000, and a lattice strain of from 0.01% to 10%, and being oriented with magnetic anisotropy in one direction within aligned flattened surface; and an interposed phase existing between the flattened magnetic metal particles and including at least one of oxygen (O), carbon (C), nitrogen (N) and fluorine (F). 1. A soft magnetic material comprising:flattened magnetic metal particles including at least one magnetic metal selected from iron (Fe), cobalt (Co) and nickel (Ni), each of the flattened magnetic metal particles having a thickness of from 10 nm to 100 μm, an aspect ratio of from 5 to 10,000, and a lattice strain of from 0.01% to 10%, and being oriented with magnetic anisotropy in one direction within aligned flattened surface; andan interposed phase existing between the flattened magnetic metal particles and including at least one of oxygen (O), carbon (C), nitrogen (N) and fluorine (F).2. The soft magnetic material according to claim 1 , wherein the magnetization behavior of the flattened magnetic metal particles proceeds by domain wall displacement.3. The soft magnetic material according to claim 1 , wherein the magnetization behavior of the flattened magnetic metal particles proceeds by rotation magnetization.4. The soft magnetic material according to claim 1 , wherein the lattice spacing in the flattened surface of the flattened magnetic metal particles varies with direction claim 1 , and the proportion of the difference between the maximum lattice spacing and the minimum lattice spacing is from 0.01% to 10%.5. The soft magnetic material according to claim 1 , wherein the crystallites of the flattened magnetic metal particles are unidirectionally linked in a row ...

STEEL-MAGNET EMBEDDED MIXED EXCITATION MOTOR

The present invention relates a steel-magnet embedded mixed excitation motor, comprising a stator and a rotor disposed in said stator; wherein said stator contains a stator core with armature windings embedded therein; wherein said rotor further comprising a rotor sheet, steel magnets and an excitation winding; wherein said steel-magnet embedded mixed excitation motor further comprising a stator and rotor that are made from stalloy; wherein said rotor sheet further comprising a plurality of evenly dispersed punching slots, wherein said rotor further comprising several poles; wherein said steel magnets are embedded in said poles at the side near the excircle, wherein said steel magnets are distributed alternately following the pole N and the pole S of said rotor; and wherein said excitation windings are directly spooled on the poles of said rotor and distributed alternately counterclockwise and clockwise following said pole N and said pole S of said rotor. 1. A steel-magnet embedded mixed excitation motor , comprising a stator and a rotor disposed in said stator; wherein said stator contains a stator core with armature windings embedded therein; wherein said rotor further comprising a rotor sheet , steel magnets and an excitation winding; wherein said steel-magnet embedded mixed excitation motor further comprising a stator and rotor that are made from stalloy;wherein said rotor sheet further comprising a plurality of evenly dispersed punching slots, wherein said rotor further comprising several poles; wherein said steel magnets are embedded in said poles at the side near the excircle, wherein said steel magnets are distributed alternately following the pole N and the pole S of said rotor; andwherein said excitation windings are directly spooled on the poles of said rotor and distributed alternately counterclockwise and clockwise following said pole N and said pole S of said rotor.2. The steel-magnet embedded mixed excitation motor according to claim 1 , wherein said ...

MOTOR HAVING CONCENTRATEDLY-WOUND STATOR COIL

A motor includes a stator that has pole cores and a stator coil comprised of unit coils each being concentratedly wound around a corresponding one of the pole cores. Each of the unit coils is comprised of first and second sub-coils that are stacked in two layers in a stacking direction. Each of the first and second sub-coils is spirally wound so that coil sides of the sub-coil overlap each other in an overlapping direction perpendicular to the stacking direction. Each of the unit coils also has, at a single place, a connecting portion that connects the first and second sub-coils of the unit coil. The connecting portion is provided in a coil end of the unit coil. For each of the first and second sub-coils of the unit coil, the connecting portion is located at an innermost periphery of the sub-coil in the overlapping direction of the sub-coil. 1. A motor comprising:a rotor; anda stator opposed to the rotor with a radial gap or an axial gap formed therebetween, the stator including a plurality of pole cores and a stator coil comprised of a plurality of unit coils each of which is concentratedly wound around a corresponding one of the pole cores,whereineach of the unit coils is comprised of a pair of first and second sub-coils that are stacked in two layers in a stacking direction, the stacking direction coinciding with a height direction of the corresponding pole core,each of the first and second sub-coils is spirally wound so that coil sides of the sub-coil overlap each other in an overlapping direction perpendicular to the stacking direction,each of the unit coils also has, at a single place, a connecting portion that connects the first and second sub-coils of the unit coil,the connecting portion is provided in a coil end of the unit coil, andfor each of the first and second sub-coils of the unit coil, the connecting portion is located at an innermost periphery of the sub-coil in the overlapping direction of the sub-coil.2. The motor as set forth in claim 1 , wherein ...

BOBIN AND ROTOR OF WOUND ROTOR SYNCHRONOUS MOTOR USING THE SAME

A rotor of a wound rotor synchronous motor is manufactured by forming a rotor core using a plurality of core blocks, and fitting bobbins with a coil wound onto the core blocks. In particular, the core blocks are connected such that tops of the bobbins extend from bobbin bodies and are connected with tops of other bobbins fitted on the adjacent core blocks. Additionally, a molding material may be injected into spaces between the core blocks. 1. A bobbin fitted on core blocks of a rotor , wherein a top of the extends from a body of the bobbin and is connected with a top portion of a different bobbin fitted on an adjacent core block.2. The bobbin of claim 1 , wherein core block grooves are formed on an inside of the bobbin and top and bottom plates are formed at the top and a bottom of the body of the bobbin claim 1 , the top plate extending so as to bend or curve downward.3. The bobbin of claim 2 , wherein the top plate includes a supporting body that supports a top portion of the core block and molding frame portions extending from the supporting portion.4. The bobbin of claim 3 , wherein connecting steps corresponding to each other are formed on a top and a bottom of portions of the molding frame portions claim 3 , respectively.5. The bobbin of claim 1 , wherein the bobbin is longitudinally divided and combined.6. A rotor of a wound rotor synchronous motor claim 1 , wherein a rotor core is formed by a plurality of core blocks claim 1 , bobbins with a coil wound therearound are fitted on the core blocks claim 1 , wherein the core blocks are connected and assembled claim 1 , tops of the bobbins extend from bobbin bodies and are connected with tops of different bobbins fitted on adjacent core blocks claim 1 , and a molding material is injected within spaces between the plurality of core blocks.7. The rotor of claim 6 , wherein a core block groove is formed on an inside of the bobbin body claim 6 , and top and bottom plates are formed on the top and bottom of each ...

ELECTRONIC WATCH

An electronic watch includes a power source, an electrostatic motor including a rotor in which a plurality of electret films are arranged in a rotational direction and a plurality of fixed electrodes arranged in the rotational direction at positions facing the rotor, a hand rotating in conjunction with the rotation of the rotor, and a motor control circuit controlling the electrostatic motor. The motor control circuit selectively executes a hand movement mode for rotating the hand and a stop mode for keeping the hand stationary. In the stop mode, the motor control circuit keeps the rotor stationary through electrostatic forces exerted on the electret films from the fixed electrodes with the polarities of the fixed electrodes maintained. 1. An electronic watch comprising:a power source;an electrostatic motor including a rotor in which a plurality of electret films are arranged in a rotational direction and a plurality of fixed electrodes arranged in the rotational direction at positions facing the rotor;a hand configured to rotate in conjunction with rotation of the rotor; anda motor control circuit configured to control the electrostatic motor, whereinthe motor control circuit selectively executes a hand movement mode for rotating the hand and a stop mode for keeping the hand stationary, andin the stop mode, the motor control circuit keeps the rotor stationary through electrostatic forces exerted on the electret films from the fixed electrodes with polarities of the fixed electrodes maintained.2. The electronic watch according to claim 1 , whereinin the stop mode, the motor control circuit exerts electrostatic attractive forces on the electret films by counter electrodes as the fixed electrodes facing central parts of the electret films.3. The electronic watch according to claim 1 , whereinthe fixed electrodes are configured to include counter electrodes facing central parts of the electret films and adjacent electrodes adjacent to the counter electrodes, andin the ...

ELECTRONIC ENGINE

The present invention provides embodiments of more efficient electric motors. Disclosed herein is an embodiment of an electric motor having a stator and a rotor, each of which have at least two electromagnets. The polarization of the electromagnets may be changed in a way to reduce self-induction. The electric may include two voltage sources connected in series such that they initiate a rotation cycle of the rotor and only one of the voltage sources drives the rotor for the majority of the rotation cycle. Disclosed also is an embodiment of an electromagnet that has a coil wire structure including a plurality of coil wires, an iron structure; and paramagnetic material that separates (1) the coil wire structure from the iron structure and (2) segments of the coil wires from each other. Also disclosed is a method for producing mechanical energy of rotation using electromagnetic energy 1. An electric motor comprising:a stator provided with at least two electromagnets; anda rotor provided with at least two electromagnets.2. The electric motor of claim 1 , wherein the polarization of the electromagnets is changed in a way to reduce self-induction.3. The electric motor of claim 1 , wherein each electromagnet includes:a coil wire structure;an iron structure; andparamagnetic material separating at least segments of the wire coils from each other and the coil wire structure from the iron structure.4. The electric motor of claim 1 , further comprising:two voltage sources connected in series;wherein the series connected voltages sources are arranged to initiate a rotation cycle of the rotor and only one of the voltage sources is arranged to drive the rotor for the majority of the rotation cycle.5. The electric motor of further comprising:a first electrical path connecting the leads to one polarity of the at least two electromagnets of the stator;a second electrical path connecting the leads to the other polarity of the at least two electromagnets of the stator;a third ...