Способ намотки фазных обмоток статора многополюсной электрической машины

Изобретение относится к области электротехники в части электрических машин. Технический результат заключается в повышении эффективности работы электрической машины. Способ намотки фазных обмоток статора многополюсной электрической машины заключается в том, что провод фазной многополюсной обмотки укладывают в пазы между зубами магнитопровода статора, поочередно слева и справа огибая каждый зуб магнитопровода статора последовательно сначала в прямом, затем в обратном направлении, таким образом формируя вокруг каждого зуба магнитопровода статора виток, состоящий из двух половин. Выводы начала и конца фазной обмотки перекрещивают между собой на зубе магнитопровода статора. 1 з.п. ф-лы, 1 ил.

ГЕНЕРАТОР ПОСТОЯННОГО ТОКА

Изобретение относится к электротехнике, к генераторам постоянного тока, и может использоваться в качестве источника постоянного тока для любых технических средств. Технический результат состоит в регулировании постоянного тока при изменении нагрузки. Генератор состоит из двух якорей, установленных на одном валу с продольным смещением относительно друг от друга, изготовленных из листовой электротехнической стали и имеющих по две боковины с сегментами по окружности, которые образуют полюса и закрепленные между ними вставки. На статоре металлическими немагнитными вставками закреплены сердечники, состоящие из пакетов колец из листовой электротехнической стали с расположенными на них обмотками. Перед якорем расположена решетка с закрепленными на ней изолированно графитовыми щетками, примкнутыми к токосъемным кольцам, установленным изолированно на якоре. Вал своими концами опирается на подшипники качения, которые находятся в подшипниковых узлах торцовых крышек статора. В средней части статора ...

МЕХАНИЗМ ЧАСОВОЙ ЭЛЕКТРОННЫЙ, ВКЛЮЧАЮЩИЙ ЭЛЕКТРОДВИГАТЕЛЬ ДЛЯ ЧАСОВОГО МЕХАНИЗМА

... 1. Механизм (2, 40, 50, 52) часовой электронный, оборудованный, по меньшей мере, одним электродвигателем (4, 42, 4А, 4В), включающим статор и ротор (6) с постоянным магнитом, расположенный в отверстии (24) статора, указанный статор определяет, по меньшей мере, два магнитных полюса (12, 14, 56, 57, 58), включающих соответствующие, по меньшей мере, два полюсных наконечника (61, 62), проходящих по периферии указанного отверстия, указанные, по меньшей мере, два полюсных наконечника соединяются друг с другом при помощи, по меньшей мере, одного непрерывного перешейка (20, 22), электродвигатель включает, по меньшей мере, одну катушку (28, 28А, 66, 67), установленную вокруг соответствующего, по меньшей мере, одного сердечника (26, 26А, 64, 65), отличающийся тем, что указанные, по меньшей мере, два полюсных наконечника и указанный, по меньшей мере, один сердечник совместно образуют первую деталь (8, 8А, 8В, 55), выполненную из ферромагнитного материала, указанная первая деталь сформирована, по меньшей ...

ЭЛЕКТРИЧЕСКАЯ МАШИНА С КОНСТРУКЦИЕЙ С МАЛОЙ МАССОЙ В МАГНИТНО АКТИВНЫХ ЧАСТЯХ

... 1. Электрическая машина (1, 51, 101), содержащая:- первый магнитный полюс (2), который имеет систему слоев, которая содержит магнитно активные слои (3) с общим объемом V,- второй магнитный полюс (4), при этом первый магнитный полюс (2) и второй магнитный полюс (4) установлены подвижно относительно друг друга, и- зазор (5), который имеет длину lв направлении, параллельном одному из слоев, от ограничивающего зазор (5) конца первого магнитного полюса (2) до ограничивающего зазор (5) конца второго магнитного полюса (4),- электрический проводник (6) в качестве связного элемента между контуром (7) электрического тока и магнитным контуром (8),при этом в один рабочий момент времени магнитный контур (8) содержит первый магнитный полюс (2), зазор (5) длиной lи второй магнитный полюс (4), через которые проходит общий магнитный полезный поток для электромеханического преобразования энергии, отличающаяся тем, что система содержит магнитно не активные слои (9) с общим объемом V, которые имеют меньшую ...

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 ...

СТАТОР ЭЛЕКТРОДВИГАТЕЛЯ И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

... 1. Статор электродвигателя, характеризующийся тем, что он содержит сборный сердечник, состоящий из множества секций, соединенных друг с другом в форме кольца, и обмотку сборного сердечника, при этом каждая из секций сборного сердечника составлена из множества пластин, сложенных в направлении увеличения толщины секции, а каждая пластина секции сердечника имеет ярмовую часть, соответствующую одному участку разделенного по кругу кольцевого сборного сердечника, и, по меньшей мере, одну отогнутую от ярмовой части полюсную часть, на которой расположена обмотка. 2. Статор по п.1, характеризующийся тем, что ярмовая часть выполнена в форме дуги окружности. 3. Статор по п.1, характеризующийся тем, что по меньшей мере одна полюсная часть отогнута с по меньшей мере одного конца ярмовой части. 4. Статор по п.1, характеризующийся тем, что полюсная часть отогнута с каждого конца ярмовой части. 5. Статор по п.1, характеризующийся тем, что каждый слой сердечника выполнен из электротехнической листовой стали ...

РАСПРЕДЕЛЕННОЕ ЭЛЕКТРОМАГНИТНОЕ УСТРОЙСТВО

ЭЛЕКТРИЧЕСКАЯ МАШИНА

... 1. Электрическая машина, включающая в себя, по меньшей мере, один первый машинный узел (1), который содержит статор, включающий в себя множество элементов (3’, 3”) магнитопровода и электрический проводник, образующий обмотку (6а, 6b, 6с, 6d), проходящую по существу по замкнутому пути обмотки через каждый элемент магнитопровода, и первый подвижный элемент (10), который включает в себя ряд элементов (12’, 12”) постоянных магнитов, выполненных в стержневидной конфигурации, и выполнен с возможностью возвратно-поступательного движения относительно статора вдоль первого пути движения в пространстве, имеющем конечную длину и образованном, по меньшей мере, некоторыми из элементов магнитопровода, второй подвижный элемент (11), который включает в себя ряд элементов (12’, 12”) постоянных магнитов, выполненных в стержневидной конфигурации, и выполнен с возможностью возвратно-поступательного движения относительно статора вдоль второго пути движения, проходящего параллельно первому пути движения, в которой ...

СТАТОР ДЛЯ МАШИНЫ С МОДУЛИРОВАННЫМИ ПОЛЮСАМИ

... 1. Секция сердечника статора для статора машины с модулированными полюсами, причем машина с модулированными полюсами содержит статор, перемещающееся устройство и рабочий зазор между соответственными поверхностями раздела перемещающегося устройства и статора для сообщения магнитного потока между статором и перемещающимся устройством, причем перемещающееся устройство выполнено с возможностью перемещения относительно статора в направлении движения, причем секция сердечника статора содержит спинку сердечника статора, от которой продолжаются множество зубцов, причем каждый зубец продолжается в соответственном первом направлении, определяющим направление к ротору, причем зубцы расположены вдоль второго направления, определяющего направление движения, причем каждый зубец имеет по меньшей мере одну боковую стенку, обращенную к соседнему зубцу, и поверхность раздела, обращенную к рабочему зазору, причем поверхность раздела и боковая стенка образуют край, соединяющий поверхность раздела и боковую ...

Статор электрогенератора сегментного

Статор электрогенератора сегментного, содержащий магнитопроводы, источник возбуждения, рабочую катушку, основание и крепежные элементы, отличающийся тем, что основание выполнено в виде проводящей полосы с окнами, в которых установлены рабочие торцы магнитопроводов.

Elektromotor und Meßwerk, insbesondere für Anzeigeinstrumente in Kraftfahrzeugen

Magnetischer Pulverkern, Statorkern und Stator

Ein Massekern, der in einer Axialspalt-Drehelektromaschine enthalten ist. Der Massekern enthält einen kreisabschnittförmigen, plattenartigen Jochabschnitt und einen Zahnabschnitt, der mit dem Jochabschnitt integriert ist und von dem Jochabschnitt vorsteht. Wenn eine der Oberflächen des Jochabschnitts, von dem der Zahnabschnitt als eine gezahnte Oberfläche vorsteht, als eine gezahnte Oberfläche definiert, hat die gezahnte Oberfläche einen konkaven Abschnitt, der zwischen einer Umfangskante des Zahnabschnitts und einer Umfangskante des Jochabschnitts vorgesehen ist.

ROTIERENDE ELEKTRISCHE MASCHINE

Es wird eine rotierende elektrische Maschine aufgezeigt. Die von Zahn-Mittelachsen gebildeten Winkel (α) benachbarter Zähne (2) sind als Zahn-Teilungswinkel definiert. Der maximale Zahn-Teilungswinkel ist definiert als erster Zahn-Teilungswinkel (α1). Mindestens einer der Zahn-Teilungswinkel (α) ist kleiner als der erste Zahn-Teilungswinkel (α1) im Uhrzeigersinn bzw. im Gegenuhrzeigersinn, und dieser Zahn-Teilungswinkel wird als zweiter Zahn-Teilungswinkel (α3) definiert. Die Querschnittsflächen von zweiten Spulen (1b), die in Schlitzen (13) jeweils zwischen benachbarten Zähnen (2) entsprechend dem zweiten Zahn-Teilungswinkel (α3) in einem Querschnitt senkrecht zur Drehachse gebildet sind, sind kleiner als die Querschnittsflächen von ersten Spulen (1a), die in Schlitzen (13) jeweils zwischen benachbarten Zähnen (2) entsprechend dem ersten Zahn-Teilungswinkel (α1) im Querschnitt senkrecht zur Drehachse gebildet sind.

Stellantrieb,insbesondere fuer Potentiometer

Permanently-moved electric machine for e.g. linear vehicle application, has coil members producing direct current along longitudinal direction such that actuators adjust direct current based on operational conditions

The machine has a stator member (ST) consisting of individual teeth or pole groups that are surrounded by coils that guide alternating current. A magnetic circuit is divided into two halves with opposite polarity. A magnetic conductive connection (Te) is transversely produced opposite to an adjacent pole in an exciter part (ET) of another pole. A magnetic transverse connection (Ts) is produced in the stator member between yokes (SJ). Coil members produce direct current along a longitudinal direction such that actuators adjust the direct current based on operational conditions.

Statorstruktur und Resolver

Eine Statorstruktur weist eine Statoreinheit und eine erste und eine zweite Spulenabdeckung auf, wobei die Statoreinheit aufweist: einen Statorkern, der einen ersten Hauptkörperteil mit einer Vielzahl von Durchgangslöchern und eine Vielzahl von Zahnteilen hat; und eine Spule, und wobei die erste Spulenabdeckung und die zweite Spulenabdeckung die Spule in einer axialen Richtung des Statorkerns abdecken, wobei die erste und zweite Spulenabdeckung erste und zweite schützende Teile und erste und zweite Eingriffsteile haben; wobei die ersten und zweiten schützenden Teile jeweils zwischen den Zahnteilen angeordnet sind, wobei die ersten und zweiten schützenden Teile, die zwischen denselben Zahnteilen angeordnet sind, in einem nicht festgehaltenen Zustand sind, in dem ihre gegenseitige Bewegung in der axialen Richtung nicht festgehalten ist, ihre distalen Endteile einander überlappen und die ersten und zweiten Eingriffsteile über die entsprechenden Durchgangslöcher miteinander in Eingriff sind ...

Ständerwicklung für eine rotierende elektrische Maschine

Die Erfindung betrifft einen Ständer (12) für eine rotierende elektrische Maschine (10) mit:- einem Blechpaket (14), welches Ständerzähne (16) bezüglich eines Luftspalts (18) der rotierenden elektrischen Maschine (10) bereitstellt, und- einer Ständerwicklung (20), die eine Mehrzahl von Zahnwicklungen (22) aufweist, wobei eine jeweilige der Zahnwicklungen an einem jeweiligen der Ständerzähne (16) an geordnet ist und einen jeweiligen ersten elektrischen Leiter (24) aufweist, der in einer Mehrzahl von Windungen umlaufend um den jeweiligen Ständerzahn (16) herum angeordnet ist.Der Erfindung liegt die Aufgabe zugrunde, die elektrische Sicherheit in Bezug auf Kurzschlüsse im Bereich der Ständerwicklung zu verbessern.Es wird vorgeschlagen, dass die jeweilige Zahnwicklung (22) einen jeweiligen vom ersten elektrischen Leiter (24) elektrisch isolierten zweiten elektrischen Leiter (26) mit einer Mehrzahl von umlaufend um den jeweiligen Ständerzahn (16) herum angeordneten Windungen aufweist, wobei ...

ELEKTRISCHE MASCHINE MIT EINEM UM EINEN STATOR ROTIERENDEN ROTOR

Electric machine and method of operation thereof

Stator core suspension system using spring bar in plane extending perpendicular to stator core axis

Electrical machines

Axial flux machine

Electrical machines

A switched reluctance motor or generator comprises at least three rotors 33, each rotor being arranged to revolve about a respective axis 34 and magnetically interact with at least two other rotors in order to permit energy to be extracted from the machine. Neighbouring rotors interact with each other through an intermediary stator component 31 that is positioned between neighbour rotors and are magnetically polarised by static electromagnetic coils 41. A magnetic circuit comprising magnetic material of the rotors and stators can be formed by the interaction between rotors and stators. When operating as a motor current can be applied to the stator coils when inductance of the magnetic circuit is increasing as the rotor shaft angle increases. When operating as a generator current can be applied to the stator coils when inductance of the magnetic circuit is falling as the rotor shaft angle increases. When current flows through the stator coil each stator can be magnetically polarised between ...

Grouped tooth electric motor

An electric motor may comprise a rotor and a stator comprising rotor and stator teeth, respectively. A non-uniform angular spacing or grouping of rotor teeth may facilitate desired rotational speeds of the rotor.

Electrical machine

Magnetic reluctance motor

Variable reluctance electric motor

A switched reluctance motor with reduced torque ripple

The reduction of motor torque output ripple by in a switched reluctance motor is achieved by the inclusion of one or more non-continuous flux barriers sharing a common axis running along the longitudinal axis of stator and/or rotor teeth, which axis may be skewed relative to the rotational axis of the motor (fig 9 not shown). The total combined barrier length along a longitudinal axis of any of the teeth 36,38 is between 30% and 70% of the total length of the rotor 31 and the flux barriers along the length of the flux barrier axis may be equidistantly spaced. In the case of a single non-continuous flux barrier 106,108 it may be placed axially centrally along a longitudinal axis of a tooth. The flux barrier cross section may be square, elliptical, round, rhomboid, trapezium or a combination thereof and the internal volume of the barriers may be filled with one or more of air, plastics or non-ferrous metal. The principle of a motor controller configured to vary the stator winding current ...

Improvements in and relating to the Construction of Dynamos and Magnetos.

... 134,139. Conner, M. S., and Puckette, C. C. Feb. 6, 1919. Magneto-electric machines; casings. - In making casings for magnetos and dynamos by casting non-magnetic metal on to the pole-pieces, metal pieces of stronger material than that employed in casting are provided for fixing the magneto &c. in place. By these means, lighter and weaker material can be used for the casing than would otherwise be possible. In the arrangement shown, a frame D with screw-holes E for fixing is attached by lugs to end pieces B, between which are arranged the pole-pieces A, and the remainder of the casing is cast on, as shown by the dotted lines.

The intercross coupled magnetic circuit structure with uniform magnetic resistance to adjust air clearance

SYNCHRONOUS DRIVE MOTOR

TRANSVERSE RIVER MACHINE WITH A STATOR FROM EFÖRMIGEN LAMINATES

MODULAR ELEKTROMASCHINE WITH GENERATOR ENGINE ENTERPRISE

Verkoppeltes Maschinensystem

Elektrisches Maschinensystem (1) mit einer geradzahligen Anzahl mechanisch und elektromagnetisch verkoppelter und Drehfelder erzeugender Teilmaschinen (2-5), die gemeinsame magnetische Abschnitte und gemeinsame Spulen (10-15) aufweisen, wobei jede Teilmaschine mit zwei benachbarten Teilmaschinen elektromagnetisch verkoppelt ist, und wobei mindestens zwei benachbarte Teilmaschinen (2, 3) eine gleiche Drehrichtung (22) aufweisen.

VERFAHREN ZUR REDUKTION EINES RASTMOMENTS EINER ELEKTRISCHEN MASCHINE

The invention relates to a method for reducing a cogging torque of an electric machine, in particular a synchronous machine, comprising a rotor/actuator (2), a stator (4) spaced from the rotor/actuator (2) by a gap (3), at least one armature winding (6, 6', 6'') provided on the stator (4) and/or on the rotor/actuator (2), and an exciter part, which is provided on the stator (3) and/or on the rotor/actuator (2) and which produces an exciter field (13) having a fundamental wave in the gap. In order to create advantageous method conditions in order to reduce the cogging torque, a selection of at least one harmonic wave (14) from the harmonic waves (14) related to the fundamental wave (15) is made for the exciter field (13) in order to reduce the cogging torque. The at least one harmonic wave selected, when superposed with the fundamental wave (15), leads to an at least partial reduction of the cogging torque, and the selected wave (14) or selected waves is or are superposed with the fundamental ...

VERFAHREN ZUR REDUKTION EINES RASTMOMENTS EINER ELEKTRISCHEN MASCHINE

The invention relates to a method for reducing a cogging torque of an electric machine, in particular a synchronous machine, comprising a rotor/actuator (2), a stator (4) spaced from the rotor/actuator (2) by a gap (3), at least one armature winding (6, 6', 6'') provided on the stator (4) and/or on the rotor/actuator (2), and an exciter part, which is provided on the stator (3) and/or on the rotor/actuator (2) and which produces an exciter field (13) having a fundamental wave in the gap. In order to create advantageous method conditions in order to reduce the cogging torque, a selection of at least one harmonic wave (14) from the harmonic waves (14) related to the fundamental wave (15) is made for the exciter field (13) in order to reduce the cogging torque. The at least one harmonic wave selected, when superposed with the fundamental wave (15), leads to an at least partial reduction of the cogging torque, and the selected wave (14) or selected waves is or are superposed with the fundamental ...

Scheibenläufermotor

A disc rotor motor is demonstrated, having at least one stator that has at least one electrical stator winding and stator teeth, which have a tooth neck composed of a soft magnetic powder composite, and having at least one disc-shaped rotor, which has permanent magnetic poles composed exclusively of ferrite magnets at least for producing torque, with the rotor and stator oriented parallel to each other and spaced apart from each other by an axial gap. In order to find an optimum between costs, weight, and overall size as well as power and torque density, the invention proposes that the stator teeth each end in a tooth end that adjoins their tooth neck and is composed of a soft magnetic powdered composite, which tooth end widens out in its cross-sectional area in comparison to the tooth neck.

ELECTRICAL PERMANENT MAGNET TURNING ENGINE WITH STATOR POLE PIECES OF CHANGING SIZES

GAS TURBINE MACHINE AND ELECTRICAL GENERATOR, DIRECT WITHOUT REDUCTION TRANSMISSION GROUP

RIVER-REGULAR, PERMANENT MAGNETIC, DIRECT CURRENT GENERATOR-ELECTRICAL MACHINE

Generator having axially aligned stator poles and/or rotor poles

A STATOR AND METHOD OF MAKING THE SAME

The present disclosure describes an endcap assembly (208, 210) for a stator (200) of an electric motor having a stator winding. The endcap assembly (208, 210) has a dielectric material (304), and a plurality of connection paths (302) each being supported by the dielectric material (304) and each intervening between each turn of the stator winding wherein the connection paths (302) are configured to communicate with each terminal end (804, 806) of a stator conductor (306). A method of making a stator is also provided.

SOLID STATE MULTI-POLE AND UNI-POLE ELECTRIC GENERATOR ROTOR FOR AC/DC ELECTRIC GENERATORS

A solid-state electromagnetic rotor, comprising a plurality of salient pole pieces arranged around a supporting structure, wherein a first end of each salient pole piece is attached to the support structure and a second end of each salient pole piece points outward away from the supporting structure; and wires wound around each salient pole piece, wherein when the wires of the plurality of salient pole pieces are sequentially excited by an excitation circuit, the salient pole pieces are energized to provide a moving polar magnetic field in the form of distinct magnetic poles as desired to accomplish power generation.

SWITCHED RELUCTANCE MACHINE WITH ODD POLE-PHASE INDEX

Various embodiments are described herein for switched reluctance machine configurations. In at least one embodiment, a switched reluctance machine configured according to the teachings herein comprises a stator including a predetermined number of salient stator poles ( N s ), a rotor rotatably mounted with respect to the stator, with the rotor comprising a plurality of salient rotor poles, and a plurality of coils provided around the predetermined number of stator poles to form at least one phase of the switched reluctance machine, where the rotor poles and the stator poles are symmetrically disposed, and a number of rotor poles is related to N s and a number of phases according to: i) (Ns/m)k ceil (mod (k,m)/m) for an odd number of phases, and ii) (Ns/m)k ceil (mod(k,m/2)/m/2) for an even number of phases, where m is the number of phases, and k is a configuration index based on N s and m.

MOTOR STATOR

A motor stator structure includes multiple teeth 20, 20', 20" and multiple arched bridge sections 30, 30', 30" respectively connected between the tooth roots 21 of the adjacent teeth. Each of the arched bridge sections 30, 30', 30" has an arched section 31, 31' extending along two adjacent sides of a predetermined parallelogram. The motor stator structure further includes multiple enlarged sections a respectively positioned at the tooth roots of the teeth 20, 20', 20". Each of the arched bridge sections 30, 30', 30" is positioned outside the range of the corresponding enlarged section a. The motor stator structure is composed of multiple small stators 10" stacked on each other. At least two punched splits 40" are respectively positioned between the tooth roots of two adjacent teeth 20" to separate the adjacent teeth 20". The space of two ends of the arched bridge section is enlarged to increase the pass space of magnetic field.

THE INTERCROSS COUPLED MAGNETIC CIRCUIT STRUCTURE WITH UNIFORM MAGNETIC RESISTANCE TO ADJUST AIR CLEARANCE

The intercross coupled magnetic circuit structure with uniform magnetic resistance to adjust air clearance, wherein it is characterized that the clearance between the particular magnetic pole and its corresponding driven rotor is increased when the magnetic circuit is shorter or the magnetic resistance is smaller between the two magnetic poles of the same pair, or is decreased when the magnetic circuit is longer or the magnetic resistance is larger between the two magnetic poles of the same pair, whereby to cause the clearance appears asymmetrical along the symmetrical positions at the two sides of the magnetic axis, thereby the magnetic force lines on the pole surface of the magnetic pole can be maintained uniformly distributed and is characterized to let the magnetic force line distribution at the two sides of the magnetic pole appear symmetrical, whereby to meet the electrical machine requirement by matching with the narrower inter-pole magnetic circuit, provides a new method to effectively ...

VARIABLE RELUCTANCE MOTOR HAVING BIFURCATED STATOR POLES

A variable reluctance electric motor includes a hollow cylindrical stator having a plurality of radially inwardly extending poles. Each of the stator poles is generally rectangular in cross sectional shape and is bifurcated into two stator teeth at its radially innermost end by a central, longitudinally extending slot.The outer circumferential edges of the stator pole teeth are beveled at their respective junctions with the sides of the stator pole. A stator pole gap width is defined between adjacent stator poles. A slot width is defined within each of the stator poles between the adjacent longitudinally extending edges of the slot. The ratio of the stator pole gap width to the stator pole slot width is in the range of from about 1.8 to about 2.3. A cylindrical rotor is co-axially supported within the stator for relative rotational movement. The rotor has a plurality of radially outwardly extending poles formed thereon. Each of the rotor poles is generally rectangular in cross sectional ...

Objet portable, notamment montre bracelet, comprenant un dispositif d'alimentation muni d'un convertisseur électromécanique.

Objet portable (42) comprenant une unité électronique et une unité d'alimentation électrique formée par un convertisseur électromécanique (6A) qui comprend un rotor (44) portant des premiers aimants (10A), un résonateur mécanique (12A) muni d'une masse d'inertie (46) susceptible d'osciller à une fréquence de résonance relativement élevée et portant des deuxièmes aimants (20), et des bobines agencées de manière que, lorsque le résonateur mécanique est oscillant, une tension induite est générée dans ces bobines. Le convertisseur électromécanique est agencé de manière que les premiers aimants et les deuxièmes aimants puissent, lors d'un entraînement en rotation du rotor, interagir magnétiquement de sorte à appliquer à la masse d'inertie, momentanément ou par moments, un couple de force magnétique permettant d'exciter le résonateur mécanique, afin d'engendrer au moins une oscillation de ce résonateur mécanique à sa fréquence de résonance pour générer une tension induite relativement élevée ...

Selbstanlaufender Synchron-Kleinmotor niedriger Drehzahl mit aus Eisenblech hergestelltem Stator.

Electromagnetic motor with two directions of rotation

Electromagnetic motor with two directions of rotation

The use of wound-rotor synchronous motor charging system

High-density winding punching plate

Motor

Closed slot type stator of permanent magnet brushless direct current motor and wire embedding method thereof

Flux motor

The stator core of the electric rotating machine

Magnetic rotary device

The stator core, step-by-step motor and direct-acting actuator

ELECTRIC MACHINE HAS STATOR AND/OR MODULAR ROTOR, TOGETHER INCLUDING/UNDERSTANDING SO-AND-SO MACHINE AND AN EXCHANGER OF HEAT AND MOTOR VEHICLE CORRESPONDING

Electric motor

Electric generator

ELECTRIC REVOLVING MACHINE HAS COMPACTNESS AND HIGH PERFORMANCES

Winding for rotary electrical machine and stator using the winding, uses windings with tapered rectangular cross section for easier fitting into stator slots

L'invention est relative à une bobine pour machine électrique tournante présentant deux grandes faces intérieures opposées (4a, 4b) réunies par deux petites faces intérieures opposées (5a 5b). Les petites faces intérieures (5a, 5b) sont non parallèles.

ELECTRONICALLY COMMUTATING ELECTRIC PULSE OF AIR AND DEVICE THEREFOR

Un dispositif de pulsion d'air selon l'invention comprend un moteur électrique (2) comportant un rotor et un stator (14). Le stator comporte des dents agencées de manière à ce qu'une zone de passage (30) pour l'enroulement d'une bobine soit formée entre deux dents voisines. Le stator est en contact avec un moyen support du moteur électrique, métallique et connecté électriquement à une masse électrique. Au moins un écran (50) est relié électriquement au moyen support, ledit au moins un écran comportant des moyens de fermeture (62, 68) qui s'étendent axialement pour combler au moins une desdites zones de passage entre deux dents du stator (14).

MOTEUR ELECTROMAGNETIQUE A DEUX SENS DE ROTATION

L'INVENTION CONCERNE UN MOTEUR ELECTROMAGNETIQUE A DEUX SENS DE ROTATION. L'ARMATURE 1 DU STATOR A LA FORME D'UN TRAPEZE ISOCELE DONT LA BASE EST INTERROMPUE EN 2A ET PRESENTE TROIS EPANOUISSEMENTS POLAIRES 1A, 1B ET 1C. LE ROTOR COMPREND UN AIMANT PERMANENT 4. LE STATOR COMPORTE DEUX BOBINES 5 ET 6 DONT L'UNE EST DISPOSEE ENTRE LES EPANOUISSEMENTS POLAIRES 1A ET 1C ET L'AUTRE ENTRE CE DERNIER ET L'EPANOUISSEMENT POLAIRE 1B. LORSQUE LES BOBINES 5 ET 6 SONT PARCOURUES PAR DES COURANTS, ELLES SOUMETTENT LE ROTOR A DES CHAMPS MAGNETIQUES DONT LES DIRECTIONS SONT OBLIQUES ET SYMETRIQUES PAR RAPPORT A UN DIAMETRE DU ROTOR. LE SENS DES COURANTS DETERMINE LE SENS DES CHAMPS.

Polyphase stator for variable reluctance dynamo-electric machine e.g. motor, has magnetic circuit with phases distributed in angular sectors, where number of sectors is equal to number of phases that are even and are equal to/more than four

Les pôles d'un circuit magnétique 1 sont angulairement répartis en 4 secteurs angulaires excités chacun par un bobinage global à pôles conséquents d'une des 4 phases d'un réseau. Un deuxième circuit magnétique Il identique au premier Ir lui est axialement accouplé et est excité avec un décalage d'une fraction de période. Les 8 phases donnent un faible taux d'ondulation et une grande sécurité de fonctionnement. Un tel stator, intérieur à un entrefer cylindrique, peut être logé à l'intérieur d'un manchon 13 dont la face intérieure est tapissée d'aimants permanents 5. Ce manchon est fixé sur le flan d'une roue 16 d'un véhicule et la face extérieure du stator est immobilisée en rotation par une liaison mécanique 18 avec le véhicule. Si un essieu 21 porte deux roues 16r, 16l, l'assemblage des deux circuits 1r, 11 peut se faire par l'intermédiaire de l'essieu 21. Variantes à deux fois 2 phases et 2 pôles par secteurs pour vitesse élevée et à entrefers plans pour faible longueur axiale ...

Motor

AXIAL AIR GAP MACHINE HAVING STATOR AND ROTOR DISCS FORMED OF MULTIPLE DETACHABLE SEGMENTS

A generator or motor apparatus having a stator formed of a plurality of pairs of parallel stator segments is provided The pairs of parallel segments are connected together to form a channel in which an annular rotor moves The annular rotor also comprises a plurality of detachable segments connected together to form an annular tram operable to move through said channel Each stator segment comprises a stator winding set and each rotor segment comprises a magnet dimensioned to fit between the parallel spaced apart stator segments The apparatus may include a support structure, the rotor segments being slidably coupled to the support structure and the stator segments being attached to the support structure The apparatus may be a rim generator, wind turbine generator or other electrical machine The stator winding set includes a stator winding, and may include other electrical or electronic components, including possibly a power factor capacitor, direct current filtering capacitor, supercapacitor ...

ELECTRIC MACHINE INCLUDING A LINEAR MOTOR, LINEAR VIBRATION ACTUATOR, LINEAR OSCILLATION GENERATOR AND ET CETERA

PURPOSE: An electric machine such as a linear motor, a linear vibration actuator, a linear vibration generator and et cetera having a pole piece array having a plurality of pole pieces are provided to increase thrust of a rotor by generating an attractive force between a pole formed in a plurality of pole pieces of a pole piece array and a pole formed due to a permanent magnet adjacent to a pole piece. CONSTITUTION: An electric machine configured to have an actuator capable of a reciprocating straight line motion respective to a stator includes a permanent magnet string(13) consisting of a plurality of permanent magnets of which one of a stator(9) and a rotor(7) is arranged to face the same pole, at least one winding coil unit(23A-23C) having the other one of the stator and the rotor formed a winding conductor wound as a coil shape while being radially arranged with a permanent magnet array, a pole piece array(25) having a plurality of pole pieces arranged having a distance apart while ...

Motor

Improvement on axial air-gap motor stator and fan thereof

Electric machine and field portion

The present invention provides an electric machine with which output can be increased while demands relating to external form are satisfied, by improving the degree of freedom in terms of structure. In a rotating electrical machine (M1), an armature portion includes armature cores (H1, H2), and a plurality of coils (CL) which are attached to an armature core (H1). A field portion (Fs) is capable of rotating relative to the armature portion, and includes a plurality of magnets (Mg) and a plurality of field cores (22N, 22S). In the field portion (Fs), the magnets (Mg) are disposed between two field cores (22N, 22S) that are adjacent to one another in the direction of rotation. The armature cores (H1, H2) are separated from one another in a direction intersecting the direction of rotation. The armature cores (H1, H2) each include a magnetic pole set (G1, G2). The magnetic pole set (G1) included in the armature core (H1) and the magnetic pole set (G2) included in the armature core (H2) constitute ...

Armature structure of three-phase motor

Provided is an armature structure of a three-phase motor which includes: 6N (N is a natural number) slots; 3N coils per phase; 3N main poles; and 3N auxiliary poles. In the armature structure of a three-phase motor, a coil wound around a winding bobbin inserted into the slot is wound around the main pole, the coil is not wound around the auxiliary pole, the main poles and the auxiliary poles are alternately placed, the winding bobbin includes a barrel portion and a flange portion, the barrel portion is in contact with a side surface in a circumferential direction of the main pole in the slot, the flange portion rises in the slot from the barrel portion along a first outer peripheral bottom portion of the slot, a side surface in the circumferential direction of the auxiliary pole, an outer peripheral surface of the coil, and a second outer peripheral bottom portion of the slot define a gap area that is not occupied by the coil, in the slot, and the second outer peripheral bottom portion ...

STATOR AND FAN AND MOTOR INCLUDING THE STATOR

ELECTRIC MACHINE

Disclosed is an electric machine, in particular a transverse flux machine, wherein the stator is composed of a stack of phase segments, each of which includes at least one stator segment and a stator winding, especially a single winding. Each stator segment has an annular stator web, onto which pole shoes are molded. In particular, said pole shoes extend radially inward and/or in the direction of the rotor and/or are arranged between the rotor and the annular stator web. In particular, the pole shoes are similarly shaped, the axial width of the pole shoe decreasing as the radial distance increases. The associated shape lies between a first and a second shape, the first shape being a linear function of the radial distance, in particular the pole shoe rear that is part of the first shape being a flat surface, and the second shape being a circular function, in particular a circular sector function, in particular the pole shoe rear that is part of the second shape being a surface of a cylinder ...

HYBRID ELECTRIC POWER SYSTEM WITH DISTRIBUTED SEGMENTED GENERATOR/MOTOR

An apparatus is disclosed for a hybrid electric power system for use in a multi- wheeled hybrid electric vehicle, and particularly for use in hybrid electric vehicles designed for operation in hostile environments where reliability and survivability of the propulsion system of the vehicle are important. The hybrid electric power system advantageously comprises at least one segmented electrical machine having multiple pairs of parallel stator segments with a magnetic rotor segment between each pair, for generating power from a thermodynamic engine, or for providing power to a driven wheel of the hybrid electric vehicle. A hybrid electric power system is also provided which comprises at least one distributed segmented electrical machine which comprises a distributed electrical energy storage system.

HIGH FORCE LINEAR MOTOR SYSTEM FOR POSITIONING A LOAD

An improved high force linear motor system comprising a linear motor with a first coil assembly, a second coil assembly and a plurality of magnets forming a row of magnets. The row of magnets is positioned between the first coil assembly and the second coil assembly, wherein the first coil assembly is aligned along the length of the row of magnets, and the second coil assembly is aligned along the length of the row of magnets. Both coil assemblies are symmetrical about a center mirror line formed by the row of magnets. Consequently, the force of attraction between the row of magnet and the first coil assembly is completely balanced by the force of attraction between the row of magnets and the second coil assembly. An improved high force linear motor system in a XY table such as in wire bonding applications is also described.

LAMINATE STACK OF AN ELECTRIC LINEAR MOTOR

The invention relates to a laminate stack (7) of an electric linear motor (1) or a primary part (3) and/or a secondary part (5), which has a corresponding laminate stack. The laminate stack (7) has a means (10) for forming a frictional and/or interlocking connection between individual laminates (15) of the laminate stack (7), wherein the means (10) has holding elements (20) and/or is in the form of a clasp, wherein the means (10) in the form of a clasp has in particular holding elements (20), wherein the means is designed to have one or more parts.

STATOR ASSEMBLY INCLUDING STATOR ELEMENTS WITH SLOTTED STATOR CORES FOR USE IN AN ELECTRICAL MOTOR

A stator assembly for an electric motor includes a drive plate, a first magnetic core and a second magnetic core. A first core slot is formed in the first magnetic core and a second slot is formed in the second magnetic core. The first and second magnetic cores each include two elongated members joined at one end by a base member which are defined by the respective core slots. The two elongated members extend from the base member substantially parallel to each other toward the drive plate. A stator coil is wound through the first core slot and the second core slot. An electrical current flowing in the stator coil generates a magnetic field about the stator coil that is absorbed by the first magnetic core and the second magnetic core to generate a magnetic flux in each of the magnetic cores that magnetically attracts the drive plate.

Electrical machines and assemblies including a yokeless stator with modular lamination stacks

An electrical machine includes a rotor with an inner rotor portion and an outer rotor portion, and a double-sided yokeless stator. The yokeless stator includes modular lamination stacks and is configured for radial magnetic flux flow. The double-sided yokeless stator is concentrically disposed between the inner rotor portion and the outer rotor portion of the electrical machine. Examples of particularly useful embodiments for the electrical machine include wind turbine generators, ship propulsion motors, switch reluctance machines and double-sided synchronous machines.

Devices to be used as magnets

There are provided electric motors each having a rotor, a stator, and a plurality of conductive windings each disposed around a corresponding tooth of the stator. The rotor is to rotate about an axis of rotation defining an axial direction. The rotor includes a backiron and a plurality of magnets secured to an inner surface of the backiron. The stator is disposed inside the rotor and centered about the axis of rotation. The stator includes a plurality of teeth each extending radially relative to the axis of rotation towards the inner surface of the backiron and terminating in a corresponding tooth end disposed proximal to the inner surface.

ELECTRICAL MACHINES

An arrangement of electrical machines including: a variable reluctance rotor. The arrangement also including an annular array of stators; each stator configured to function, in conjunction with the rotor, as an electrical machine.

DC motor with asymmetrical poles

The present invention relates to a motor having a stator with a magnetized rotor rotatably positioned in the stator. The stator and the rotor each have at least two magnetic poles. At least one of the stator poles has a different area confronting the poles of the rotor than the other stator poles. An air gap is positioned between each of the at least two stator poles and at least two rotor poles. The distance of the air gap between each stator pole and each rotor pole is different. A coil is wound upon a bobbin which is placed about at least one of the stator poles. Altering the confronting area of the stator poles allows a larger bobbin and coil to be placed about the stator pole.

Polyphasic multi-coil generator

A polyphasic multi-coil generator includes a drive shaft, at least first and second rotors rigidly mounted on the drive shaft so as to simultaneously synchronously rotate with rotation of the drive shaft, and at least one stator sandwiched between the first and second rotors. A stator array on the stator has an array of electrically conductive coils mounted to the stator in a first angular orientation about the drive shaft. The rotors each have an array of magnets which are circumferentially equally spaced around the rotor and located at the same radially spacing with respect to the centre of the rotor and the drive shaft at a first angular orientation relative to the drive shaft. The arrays of magnets on adjacent rotors are off-set by an angular offset relative to one another.

Shift range control apparatus

A control circuit switches over a shift range by controlling driving of a motor to rotationally drive a detent plate. A current detection circuit detects a current value corresponding to a driving current supplied to drive the motor. A current increase check part performs check processing to check whether the current value detected by the current detection circuit has increased. A motor rotation stop part stops rotation of the motor when the current increase check part determines that the current has increased. A reverse driving part reverses the rotation direction of the motor and rotationally drives the motor after stopping of the motor by the motor rotation stop part.

Motor stator

A motor stator structure includes multiple teeth and multiple arched bridge sections respectively connected between the tooth roots of the adjacent teeth. Each of the arched bridge sections has an arched section extending along two adjacent sides of a predetermined parallelogram. The motor stator structure further includes multiple enlarged sections a respectively positioned at the tooth roots of the teeth. Each of the arched bridge sections is positioned outside the range of the corresponding enlarged section. The motor stator structure is composed of multiple small stators stacked on each other. At least two punched splits are respectively positioned between the tooth roots of two adjacent teeth to separate the adjacent teeth. The space of two ends of the arched bridge section is enlarged to increase the pass space of magnetic field.

Single Phase Brushless Motor And Electric Apparatus

A single phase brushless motor and an electric apparatus are provided. The motor includes a stator and a rotor. The stator includes a stator core and windings. The stator core includes a yoke and at least two teeth. The tooth includes a tooth body and a tooth tip. The tooth tip includes first and second pole shoes. The rotor is received in a space defined between the first pole shoes and the second pole shoes. Each tooth forms a positioning groove facing the rotor between the first pole shoe and the second pole shoe. The first and second pole shoes are symmetrical about a central line of the tooth body and the positioning groove deviates toward the first pole shoe, such that the rotor startup capability in one direction is greater than the rotor startup capability in an opposite direction. The single phase motor has a larger startup torque with enhanced startup capability.

ROTOR ASSEMBLY FOR A POWER GENERATION SYSTEM

A rotor assembly for an electric machine or power generation system, includes a shaft having a rotational axis, a first cylindrical section rotatably supported by the shaft and having a first rotor core, and a second cylindrical section, axially spaced from the first cylindrical section along the rotational axis, the second cylindrical section rotatably supported by the shaft, and wherein a set of magnet surface polarities are arranged to improve power output.

FLUID DRIVING DEVICE AND MOTOR ASSEMBLY THEREOF

A motor assembly includes a single phase motor and a friction clutch. The single phase motor includes a stator and a rotor. The friction clutch includes a pressing member rotating with the rotor, and a connecting member to be connected to a load. wherein when the pressing member rotates, the pressing member generates an axial or radial movement to thereby exert a pressing force to the connecting member to cause the connecting member to rotate due to a frictional force generated between the pressing member and the connecting member. The present invention further provides a fluid driving device incorporating the motor assembly.

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.

DISC ROTOR MOTOR

A disc rotor motor is demonstrated, having at least one stator that has at least one electrical stator winding and stator teeth, which have a tooth neck composed of a soft magnetic powder composite, and having at least one disc-shaped rotor, which has permanent magnetic poles composed exclusively of ferrite magnets at least for producing torque, with the rotor and stator oriented parallel to each other and spaced apart from each other by an axial gap. In order to find an optimum between costs, weight, and overall size as well as power and torque density, the invention proposes that the stator teeth each end in a tooth end that adjoins their tooth neck and is composed of a soft magnetic powdered composite, which tooth end widens out in its cross-sectional area in comparison to the tooth neck.

ROTOR OF ROTATING ELECTRICAL MACHINE AND ASSOCIATED FABRICATION PROCESS

... in which the last coil (C9, C9′), situated radially furthest towards the outside, comprises a predetermined number of turns that is lower than the predetermined number of turns of the other coils of the series (C1 . . . C8, C1′ . . . C8′).

Stacked stator core and method of manufacturing thereof, and rotary motor and method of manufacturing thereof

The present invention relates to a structure of a stacked stator core formed when rotary motors are manufactured and to a method of manufacturing the stacked stator core. It is possible to improve the workability in the winding process and the productivity of the stator and the rotary motor because the stacked stator core includes a plurality of stator cores 300 , each of which is made up of a prescribed number of stacked sheet magnetic materials, a plurality of yoke members 301 forming each stator core, a bendable bent portion 304 provided between the yoke members, and an interconnecting portion 401 for connecting the plurality of stator cores 300 one another while providing a difference in level, by connecting the top end of one stator core with the bottom end of the other stator core.

Electric machine with a stator having slots at the tooth for reducing the fundamental wave of the magnetic flux

The invention relates to an electric machine comprising a stator and a rotor moveable relative to the stator. The stator has slots for accommodating electrical windings, wherein teeth of the stator are formed between adjacent slots. During operation of the machine, an operating wave of the magnetomotive force is different from a fundamental wave of the magnetic flux. The stator comprises at least one recess which is arranged in the tooth region and extends substantially in the radial direction.

Segmented magnetic core

Various embodiments associated with a segmented magnetic core are described. The segmented magnetic core can be made up of multiple singular structures so as to allow an individual singular structure to be removed with ease and without disturbing another magnetic core. This modular core design allows for a significant reduction in motor housing weight due to compatibility of the design with lightweight materials and the potential absence of extensive housing when so designed. This modular core design can be incorporated into a motor or a generator and this modular core design can be accomplished, in one example, by way of stacking and/or interlocking employing low cost assembly. In one example, a motor or a generator uses sensors to detect an operational failure in a magnetic core, notifying a user early of the failure.

SEALED ROBOT DRIVE

A transport apparatus including a housing, a drive mounted to the housing, and at least one transport arm connected to the drive where the drive includes at least one rotor having at least one salient pole of magnetic permeable material and disposed in an isolated environment, at least one stator having at least one salient pole with corresponding coil units and disposed outside the isolated environment, where the at least one salient pole of the at least one stator and the at least one salient pole of the rotor form a closed magnetic flux circuit between the at least one rotor and the at least one stator, and at least one seal configured to isolate the isolated environment where the at least one seal is integral to the at least one stator.

Stator of two rotor single stator type electric motor

A stator for a two rotor single stator type electric motor is described. The electric motor has inner and outer rotors that are rotated independently within and around a stator upon application of current to the stator. The stator comprises a stator core including a plurality of stator teeth that are circumferentially arranged around a common axis. Each stator tooth includes a plurality of flat magnetic steel plates that are aligned along the common axis while intimately and closely contacting to one another. The stator further comprises at least one connecting ring plate that is coaxially installed in the stator core in such a manner that the ring plate is intimately put between adjacent two of the flat magnetic steel plates of each stator tooth. The ring plate is of an endless annular member.

Синхронный электрический двигатель-генератор

Заявляемая полезная модель относится к электроэнергетике, в частности к синхронным электрическим машинам, работающим в режиме двигателя и генератора, и может быть использована в силовых электроприводах, в различных системах автоматики, а также в качестве источника переменного или постоянного тока, в качестве вентильного генератора. Технический результат, на достижение которого направлена заявляемая полезная модель, заключается в повышении эффективности электрической машины за счет увеличения токовой постоянной двигателя-генератора и обеспечения возрастания удельной мощности двигателя-генератора на единицу тепловых потерь. 2 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 181 979 U1 (51) МПК H02K 1/14 (2006.01) H02K 3/28 (2006.01) H02K 21/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК H02K 1/14 (2018.02); H02K 3/28 (2018.02); H02K 21/14 (2018.02) (21)(22) Заявка: 2017147032, 29.12.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: 31.07.2018 (45) Опубликовано: 31.07.2018 Бюл. № 22 7969058 B2, 28.06.2011. RU 2059994 C1, 10.05.1996. RU 2121206 C1, 27.10.1998. RU 2453968 C2, 20.06.2012. RU 2330368 C2, 27.07.2008. (54) СИНХРОННЫЙ ЭЛЕКТРИЧЕСКИЙ ДВИГАТЕЛЬ-ГЕНЕРАТОР (57) Реферат: Заявляемая полезная модель относится к Технический результат, на достижение которого электроэнергетике, в частности к синхронным направлена заявляемая полезная модель, электрическим машинам, работающим в режиме заключается в повышении эффективности двигателя и генератора, и может быть электрической машины за счет увеличения использована в силовых электроприводах, в токовой постоянной двигателя-генератора и различных системах автоматики, а также в обеспечения возрастания удельной мощности качестве источника переменного или постоянного двигателя-генератора на единицу тепловых тока, в качестве вентильного генератора. потерь. 2 ил. R U 1 8 1 9 7 9 (56) Список документов, цитированных в отчете о поиске: CN 105978182 A, ...

Laminated core

A laminated core 10 improves material yield and prevents cracks or breakages of core pieces by relaxing stress on connecting portions 13 . A connected core segment 14 to be the laminated core 10 includes: a V-shaped cutout 17 located radially inward from the connecting portion 13 , the cutout 17 opening in a radially inward direction with an opening angle of 360°/n given that n is a number of core segments 19 ; a slit 18 located radially outward from the connecting portion 13 , the slit 18 dividing adjacent segment yokes 12 located radially outward from the connecting portion; a first through-hole 20 having a circular arc formed in a radially outward end of the cutout 17 in contact with the connecting portion 13 ; and a second through-hole 21 having a circular arc formed in a radially inward end of the slit 18 in contact with the connecting portion 13.

Magnetic circuit structure

A magnetic circuit structure, such as a motor, is provided with: a rotor having rotor-side magnetic poles formed on the outer surface; and a stator having stator-side magnetic poles formed on the inner surface. The magnetic circuit structure has an air gap between the outer surface of a rotor-side magnetic pole and the inner surface of a stator-side magnetic pole in the location where the rotor-side magnetic pole and the stator-side magnetic pole face each other. At least one pair of a protrusion and a recess is created so that the outer surface of a rotor-side magnetic pole and the inner surface of a stator-side magnetic pole face each other through the air gap in the direction of the actual line of the rotation axis, and each pair of a protrusion and a recess has two or three steps in the direction of the radius around the rotation axis.

Single-phase brushless motor

A single-phase brushless motor, includes: a rotor including plural magnetic poles; a stator disposed facing the rotor via a gap and including the same number of salient poles as that of the magnetic poles; a driving coil wound around the plural salient poles; a salient pole surface having a bevel-shape and provided on each salient pole, the salient pole surface facing the rotor a groove provided at a position between a center and an end in a circumferential direction of each salient pole surface; in which a wave shape of each surface magnetic flux of the plural magnetic poles has a distribution of the surface magnetic flux density composed of sloping portions disposed at both sides of the wave shape and a plane portion disposed between the sloping portions.

Silicon steel assembly and assembling method thereof

A silicon steel assembly includes a first cover, a second cover, plural tooth members and an outer ring. The second cover has plural recesses. The tooth members are accommodated within respective recesses of the second cover. The first cover, the tooth members and the second cover are combined together to form a combination structure. The outer ring is sheathed around an outer periphery of the combination structure.

Sectionalized Electromechanical Machines Having Low Torque Ripple and Low Cogging Torque Characteristics

A method and apparatus for reducing or eliminating the effects of torque ripple and cogging torque and otherwise improving performance in an electromechanical machine such as a motor or generator. The rotor and/or stator is conceptually sectionalized and the sections spaced apart by amount sufficient to alleviate deleterious aspects of cogging torque and torque ripple. Positioning of the stator teeth or rotor magnets is determined based on the calculated spacing. Conceptual sections may be formed as physically individual segments. Unwound teeth may be disposed in end spaces between sections occupying less than the entire area of the end space.

Stator for electrical rotating machine

Included are a pair of insulators arranged on axial end surfaces of a split core, and an insulating film attached to lateral side surfaces of the tooth part, for insulating the split core from a coil wound around the tooth part. Each insulator includes projections projecting further than a tooth front end part in the circumferential direction, slits which are formed in the respective projections to a corresponding axial end surface side of the tooth front end part and into which the insulating film is inserted, and ribs formed, on an end surface side in the circumferential direction, in the respective projections. The insulating film inserted into the slits is folded back to a back yoke part side with the ribs interposed therein, and fixed by being interposed between the ribs at tip portions of projections of adjacent insulators. Accordingly, the insulating film can be assuredly fixed and prevented from escaping from a slot.

Electric machine

The device comprises a single circular row of permanent magnetic poles and a circular row of electromagnets, magnetic-force-conducting elements of which have central polar part and two lateral polar parts connected to the central polar part and spaced from opposing (in the direction which is essentially perpendicular to the rotation axis) sides of the central polar part. Winding is situated upon central polar part. The part of winding positioned between the polar parts of the magnetic-force-conducting element is more than half the length of the whole winding. Central polar part may have at least one groove. The distance between the centers of adjacent polar surfaces of the magnetic-force-conducting element is set depending on the angle between the magnetic poles in the circular row. The angular dimension of the polar surface of the lateral polar part depends on the angular dimension of the polar surface of the central polar part.

Motor stator

A motor stator includes an insulating frame having a plurality of projecting rods, an induction unit, and a plurality of conductive members. The induction unit includes an induction circuit board, a plurality of induction coils embedded within the induction circuit board, and a plurality of coil windings wound respectively on the projecting rods. The conductive members extend through the insulating frame and the induction circuit board for establishing an electrical connection between each of the induction coils and a corresponding one of the coil windings. The turn numbers of the coil windings are not limited by the area and thickness of the induction circuit board, and can be increased. Alternatively, the coil windings may be positioned to increase the magnetic pole slot number when energized. As such, a driving force of the motor stator can be increased.

Wind power generation systems including segmented stators

The present disclosure relates to wind power generation systems having a segmented stator with a structural element and a plurality of coils. The wind power generation systems also include a rotor adapted to be rotated by wind to induce current in the plurality of coils and a lamination stack having a plurality of lamination plates disposed about the plurality of coils and a dovetail recess formed in the lamination stack. The wind power generation systems also include a dovetail bar adapted to be received by the dovetail recess and adjusted by a bolt to engage the lamination stack and the structural element of the segmented stator to form a torque transfer interface. Torque is adapted to be transferred from the lamination stack to the segmented stator via friction at the interface.

Rotating electrical machine and method of manufacturing the rotating electrical machine

A method of manufacturing a rotating electrical machine includes: fixing a rotor core to a shaft; assembling a stationary assembly in which a first bearing is fixed to a housing bottom portion of a substantially cylindrical housing member having a closed bottom and in which an annular stator is fixed to an inner circumferential surface of a cylinder portion of the housing member; inserting the rotor core into the stator; fitting an upper portion of the shaft into a second bearing supported by a bearing support member. The method further includes fixing the bearing support member to an upper portion of the housing member; and axially inserting a plurality of rotor magnets into a plurality of axially-extending hole-shaped or groove-shaped magnet holding portions formed in the rotor core, through a magnet insertion hole defined in one of the bearing support member and the housing bottom portion.

Ceiling Fan Motor

A ceiling fan motor has a stator with several coil arms disposed at intervals for the winding of magnetizing coils. Between two adjacent coil arms are formed with a magnetic pole spacer. A supporting base is provided in a predetermined magnetic pole spacer for the disposition of a sensor to detect the position of the rotor.

Rotary electric machine

A rotary electric machine according to an embodiment includes a substantially cylindrical rotator that is freely rotatably supported, a stator, and a bracket that supports the rotator and the stator. The stator includes stator coils in which a plurality of air-cored coils are arranged in a ring shape and are integrated by resin, each of the air-cored coils being formed by winding a round copper wire and having an outer shape subjected to pressure molding, and stator cores divided for each of teeth.

Winding frame with magmate and stator core with the same

A stator core including at least two or more stator core-continuous bodies each formed by coupling at least two or more unit cores to each other, each unit core consisting of a tooth portion having a coupling slot and a coupling projection formed along both ends thereof and connected to adjacent unit core by means of a connection portion formed at each of both end portions of the tooth portion, wherein the at least two or more stator core-continuous bodies are fitting-connected to each other by means of the coupling slots formed at one side ends thereof and the coupling projections formed at the other side ends thereof to form the stator core having a round shape.

Stator coil segment for an electro mechanical transducer, in particular a generator and electro mechanical transducer, in particular electric generator

A stator coil segment for an electro mechanical transducer, in particular a generator for generating electric energy from mechanical energy, includes a first coil which is arranged at a first radial position along a radial direction and adapted to be connected to an input terminal of a first power electronic device. The radial direction is perpendicular to a rotation axis of the electro mechanical transducer. Further, a second coil is arranged at a second radial position along the radial direction and adapted to be connected to an input terminal of a second power electronic device, wherein the second radial position is different from the first radial position.

Transverse and/or commutated flux systems having laminated and powdered metal portions

An electrical machine comprising a rotor, a coil and a stator comprising a lamination stack coupled to a tooth, wherein the electrical machine is at least one of a transversal flux machine is described. The electrical machine may be a transversal flux machine such as a transverse or commutated flux machine. A lamination ring is described comprising a plurality of lamination stacks. A lamination stack may comprise a plurality of trenches configured to retain a plurality of teeth. The tooth may comprise a portion of the switching surface, and a portion of a lamination stack may extend to the surface of the tooth to make up a portion of the switching surface. The electrical machine may be configured with a constant air gap, wherein no more than 15% variability in the distance between the stator switching surface and the rotor switching surface.

Motor and magnetizing apparatus and magnetizing method of motor

An apparatus for magnetizing magnets provided among a plurality of cores of a motor of a washing machine and a method thereof, is capable of fully magnetizing a magnet forming a rotor and including a plurality of teeth disposed around two cores of the plurality of cores, the two cores being laterally provided while interposing one of the magnets therebetween, and a coil being provided around the plurality of teeth to form a magnetic flux to magnetize the one magnet interposed between the two cores laterally provided.

Rotary motor actuator and horizontal axis wind turbine

Provided is a rotary motor actuator capable of simplifying the manufacture and assembly process. A base 22, a table 21, a stator 25 and a rotor 26 of a rotary motor 31 and a first member 12 and a second member 14 of a guide mechanism 24 have a plurality of base segments 22 a, a plurality of table segments 21 a, a plurality of stator segments 25 a, a plurality of rotor segments 26 a, a plurality of first member segments 12 a and a plurality of second member segments 14, respectively, which all arranged circumferentially around a center line C. The stator segments 25 a are connected to the base segments 22 a, to which the first member segments 12 a are connected. The rotor segments 26 a are connected to the table segments 21 a, to which the second member segments 14 a are connected.

Electric motor

An electric motor includes an inner stator including inner magnetic poles arranged circumferentially, an outer stator including outer magnets arranged circumferentially, and a rotor rotatably disposed between the inner and outer stators. The rotor includes a shaft, a rotor core fixed to the shaft and a winding wound on the rotor core. The rotor core includes a ring shaped yoke having a plurality of inner teeth extending inwardly and a plurality of outer teeth extending outwardly. The winding includes a plurality coils each including an inner side received in a corresponding inner slot formed between adjacent inner teeth and an outer side received in a corresponding outer slot formed between adjacent outer teeth.

Linear motor

Disclosed herein is a linear motor including: a first stator part including a plurality of stator cores having coils wound therearound multiple times and arranged to be spaced apart from each other by predetermined intervals in a longitudinal direction; a second stator part arranged to be spaced apart from the first stator part by a predetermined interval in a transversal direction so as to face the first stator part and including a plurality of stator cores having coils wound therearound multiple times and arranged to be spaced apart from each other by predetermined intervals in the longitudinal direction so that the second stator part is in parallel with the first stator part; and a mover arranged in an interval formed by the first and second stator parts and moving linearly.

Stator Manufacturing Method for a Motor and Stator Utilizing the same

A stator manufacturing method for a motor includes a preliminary step, a winding step, a rolling step and a shaping step. The preliminary step provides a strip plate having at least one wound portion. The winding step provides and winds a coil unit around the wound portion. The rolling step roll ups the strip plate into an unshaped sleeve having a central hole. The shaping step fixes a shape of the unshaped sleeve to form a shaped sleeve. An outer sleeve may be provided to receive the unshaped sleeve, and a separation member is inserted between two ends of the strip plate. Alternatively, an outer sleeve with a protruding pole may be provided, or the strip plate may form at least one outer wound portion that is wound with an outer coil unit. In addition, methods for manufacturing the stators are also disclosed.

Stator structure and method for manufacturing the same

The present invention relates to an integral or a non-integral stator structure for reducing the manufacturing complexity by eliminating the boot part of the tooth part thereof. The stator structure is made of a core material, and includes: a plurality of stator units, each having a tooth part and an annular part, in which different stator units can be connected with each other integrally or non-integrally, so as to form an annular stator structure. The tooth part of each stator unit is formed in a pillar shape that has a first end and a second end, and the first end is connected to the annular part.

Rotary electric machine and stator for rotary electric machine

A stator for a rotary electric machine has a plurality of core bodies arranged in an annular shape and held by a circular cylindrical holding ring. Each of core teeth included in the respective core bodies includes a tooth portion which radially extends when the core tooth is attached to the holding ring, and around which a coil is wound. The core tooth includes a back yoke portion which circumferentially extends and is connected to the radially outward side of the tooth portion. The outer circumferential surface of each of the back yoke portions has a protruded portion at the circumferential center thereof and has recessed portions at opposite circumferential ends thereof. The protruded portion protrudes radially outwardly from a reference circle located a predetermined distance apart from the axial center of a stator, and the recessed portion is recessed radially inwardly from the reference circle.

Method for connecting end sections of an annular laminated article and articles made therefrom

A method for securing the end sections of an annular laminated article, such as a stator core, which includes a plurality of serially joined sections, each section formed of a plurality of stacked, planar laminas. The article is initially manufactured in a liner form, and is then formed into an annular form with the end sections disposed adjacent one another. At least one tab associated with one of the end sections is displaced by a forming tool into a corresponding cavity of the other of the end sections to secure the end sections together. In another embodiment, a pair of tabs each associated with one of the end sections are respectively displaced toward one another and into corresponding respective cavities each associated with the other of the end sections to secure the end sections together.

Electromechanical Device and Assembly Method

An electromechanical device includes a rotor and a stator, wherein the stator includes multiple teeth excitable by a coil. The stator is formed from multiple stator sections with one section having a protrusion in spaced relation with a first tooth and a second section having a second protrusion in spaced relation with a second tooth. The protrusions have voids for receiving opposing protrusions in an overlapping manner to integrally form the first stator section with the second stator section. The electrical coil is extended around at least a portion of one tooth before mating the multiple stator sections. The rotor has a diametral magnetized magnet extending into the aperture.

Stator core and spindle motor including the same

There is provided a stator core including: a coreback having an installation hole formed therein; a plurality of teeth extended from the coreback in a radial direction; and extension parts, each extended from each of the plurality of teeth in a circumferential direction and having a through-hole formed therein to reduce cogging torque.

Broad-Pole Type Square-Wave Three-Phase Brushless Permanent Magnet Direct Current Motor and Assembling Method Thereof

A broad-pole type square-wave three-phase brushless permanent magnet direct current motor and an assembling method thereof are disclosed. The number of magnetic poles on a rotor core is: 2P=4. The number of slots in a stator core is: Z=6. Six teeth on the stator are composed of three large teeth and three small teeth. The sum of mechanical angles of one large tooth and one small tooth is 120 degree. Electrical angles corresponding to the mechanical angles are: P*120=240°. Three-phase concentrated windings are wound on three large teeth separately, and only one winding is arranged at each phase. The advantages of the motor are low positioning torque, simple structure, effective production cost, convenient to wind the windings, and low copper loss, etc. 1. A broad-pole type square-wave three-phase brushless permanent magnet direct current motor , the motor comprising a rotor core provided with a plurality of pairs of permanent magnets thereon , and a stator slot provided with three phases of windings therein , wherein:the rotor core has a number 2P of magnetic poles, wherein 2P=4;the motor's stator core has a number Z of slots wherein Z=6, and accordingly six teeth including three large teeth and three small teeth;the three phases of windings are concentrated windings which are respectively wound around the three large teeth, one phase including one winding only;the windings and the teeth are arranged in the following order: the large tooth wound with phase-A winding→a small tooth→the large tooth wound with phase-B winding→a small tooth→the large tooth wound with phase-C winding→a small tooth, wherein A denotes phase-A concentrated winding; B denotes phase-B concentrated winding; and C denotes phase-C concentrated winding;the stator core comprises a large tooth core and three small tooth cores, the large tooth core having three large teeth and three insertion slots, each of which is arranged in a yoke between every two adjacent large teeth; andthe small tooth cores ...

Electromagnetic module and spindle motor having the same

Disclosed herein are an electromagnetic module for a spindle motor including a shaft and a spindle motor having the same. The electromagnetic module includes: an armature including a core and a coil wound around the core; and a magnet facing the armature, wherein the magnet is provided with a protrusion part disposed over the core. The spindle motor includes: a rotor part including a shaft, a hub, and a magnet; a stator part including a sleeve rotatably supporting the shaft, a base having the sleeve coupled thereto, and an armature facing the magnet, fixedly coupled to the base, and including a core and a coil; and a fluid dynamic bearing part formed between the rotor part and the stator part by being filled with oil, wherein the magnet is provided with a protrusion part disposed over the core.

Segmented magneto-conductive structure applied in rotating machines

A segmented magneto-conductive structure applied in rotating machines comprises a rotor assembly and a stator assembly. The rotor assembly includes a rotor yoke component and a plurality of rotor teeth components. The rotor yoke component is made of non-oriented silicon steel. The rotor teeth components are made of grain-oriented silicon steel. The stator assembly includes a plurality of stator yoke components and a plurality of stator teeth components. The stator yoke components and the stator teeth components are made of grain-oriented silicon steel. Thereby, an operational efficiency of a motor applying the segmented magneto-conductive structure is enhanced.

Electrical Rotary Machine Assembly With Stator Core Sections

An electrical, rotary machine may include a first stator core section being substantially circular and including a plurality of teeth, a second stator core section being substantially circular and including a plurality of teeth, a coil arranged between the first and second circular stator core sections, and a rotor including a plurality of permanent magnets. The first stator core section, the second stator core section, the coil and the rotor are encircling a common geometric axis, and the plurality of teeth of the first stator core section and the second stator core section are arranged to protrude towards the rotor. Additionally the teeth of the second stator core section are circumferentially displaced in relation to the teeth of the first stator core section, and the permanent magnets in the rotor are separated in the circumferential direction from each other by axially extending pole sections made from soft magnetic material. 1. An electrical , rotary machine , said machine comprising:a first stator core section being substantially circular and including a plurality of teeth,a second stator core section being substantially circular and including a plurality of teeth,a coil arranged between the first and second circular stator core sections, anda rotor including a plurality of permanent magnets,wherein the first stator core section, the second stator core section, the coil and the rotor are encircling a common geometric axis, and wherein the plurality of teeth of the first stator core section and the second stator core section are arranged to protrude towards the rotor,wherein the teeth of the second stator core section are circumferentially displaced in relation to the teeth of the first stator core section, and the entirety of the teeth of the second stator core section are radially separated from the entirety of the teeth of the first stator core section by a circumferentially extending area, the area extending circumferentially and not being interrupted by ...

Electric machine - over-moulding construction

An electric machine ( 10 ) comprises a rotor ( 14 a, b ) having permanent magnets ( 24 a, b ) and a stator ( 12 ) having coils ( 22 ) wound on stator bars ( 16 ) for interaction with the magnets across an air gap ( 26 a, b ) defined between them. The bars ( 16 ) and coils ( 22 ) are enclosed by an annular stator housing ( 42 a, b ) that extends between the air gap. A chamber ( 52, 54, 56 ) is defined that incorporates cooling medium to cool the coils. The stator housing comprises two mating clamshells ( 42 a, b ) that mount the stator bars and coils in the machine. Each clamshell is moulded from reinforced plastics and interconnected (optionally through one or more intermediate components). At least one clamshell has over-moulded therein stator bar shoes that form part of said radial wall, and optionally one or more of the following components: cylindrical boss supports extending along the cylindrical outer wall part; connection studs that communicate electrically the chamber externally; stator coils; coolant inlet and outlet ports; and an outer race of a rotor bearing.

Active part of an electrical machine having inclined coils in the winding head area

An active part of an electrical machine has a carrier, a plurality of coils which are arranged on the carrier and which each include a plurality of sub-conductors and a winding head area, in which the coils project out of the carrier in a curved shape, respectively and are connected to one another. At least one of the plurality of coils has a coil arc in the winding head area, and the center line of the coil runs in one plane in the coil arc. The sub-conductors of one coil run parallel to the plane in the coil arc of the coil and themselves in each case form sub-conductor arcs. The vertices of the sub-conductor arcs of the coil form a line of inclination which runs at an angle to the plane.

TRANSVERSE AND/OR COMMUTATED FLUX SYSTEMS HAVING PHASE OFFSET

Electrical machines, for example transverse flux machines and/or commutated flux machines, may be configured to achieve reduced overall cogging torque via implementation of a sixth-phase offset. Individual cogging torque waveforms in the electrical machine may be evenly distributed across one-sixth of a voltage phase or other suitable spacing, resulting in a reduced magnitude and/or increased sinusoidality of the overall cogging torque waveform for the electrical machine. 1. A stator for a transverse flux machine , the stator comprising:a first stator portion comprising a first set of stator teeth in number N disposed about the circumference of the first stator portion,wherein a first stator tooth and an adjacent second stator tooth in the first set of stator teeth are separated, center to center, by an angular distance of about (360/N) degrees plus about (⅙*(360/N)) degrees, andwherein all other adjacent stator teeth in the first set of stator teeth are separated, center to center, by an angular distance of about (360/N) degrees minus about ((⅙*(360/N))/(N−1)) degrees.2. The stator of claim 1 , further comprising:a second stator portion comprising a second set of stator teeth in number M disposed about the circumference of the second stator portion,wherein a first stator tooth and an adjacent second stator tooth in the second set of stator teeth are separated by an angular distance of about (360/M) degrees plus about (⅙*(360/M)) degrees center to center, andwherein all other adjacent stator teeth in the second set of stator teeth are each separated by an angular distance of about (360/M) degrees minus about ((⅙*(360/M))/(M−1)) degrees center to center.3. The stator of claim 2 , wherein the number N is larger than 50.4. The stator of claim 2 , wherein N is equal to M.5. The stator of claim 2 , wherein the first stator portion and the second stator portion are coupled such that the first set of stator teeth is interleaved with the second set of stator teeth.6. The ...

Stator core of motor for washing machine

The present invention relates to a stator core of a motor for a washing machine that is formed by connecting a plurality of arc-shaped core pieces to each other, each of the core pieces being formed by stacking core piece steel plates on top of each other and by bending the stacked core piece steel plates in such a manner that core piece teeth are disposed outward in the radial direction of a core piece yoke and the core piece yoke has the same curvature as a yoke of a stator core, the core piece yoke on each core piece steel plate having a plurality of incised portions for bending formed partially incised thereon between the respective neighboring core piece teeth on the opposite side to the side on which the core piece teeth are formed.

SINGLE-PHASE INDUCTION MOTOR

A single-phase induction motor in which coils are wound around a plurality of teeth by a concentrated winding method is constructed such that an area of a smallest of all cross-sections of a core back element taken along planes which are parallel or substantially parallel to an axial direction is about 0.90 or more times an area of the smallest of all cross-sections of the teeth taken along planes which are parallel or substantially parallel to the axial direction, to prevent or minimize leakage of the magnetic flux. 1. A single-phase induction motor comprising:a rotating portion;a stationary portion including a stator; anda bearing portion arranged to support the rotating portion such that the rotating portion is rotatable about a central axis with respect to the stationary portion; wherein a stator core including an annular core back and a plurality of teeth arranged to extend radially inward from the core back; and', 'a plurality of coils each of which is wound around a separate one of the teeth;, 'the stator includes a plurality of main coils defined by a continuous main conducting wire wound around every other one of the teeth, with a direction of winding of the main conducting wire being reversed for each alternate coil; and', 'a plurality of auxiliary coils defined by a continuous auxiliary conducting wire wound around each of the remaining teeth positioned between the alternate teeth, with a direction of winding of the auxiliary conducting wire being reversed for each remaining tooth;, 'the plurality of coils includethe stator core includes a plurality of core elements;each of the plurality of core elements includes one of the teeth and a core back element, the core back element being a portion of the core back which corresponds to the one of the teeth;adjacent ones of the core back elements are connected with each other at a radially outward joint portion, and include mating surfaces arranged to be in contact with each other, the mating surfaces being ...

High Torque Low Inductance Rotary Actuator

An electromechanical rotary actuator includes a rotor and a stator having one or more slots into which one or more coils are placed. The stator includes a rotor position restoring means which overcomes cogging outside a desired rotation range. The rotor position restoration means may include one or more restoring magnets or optionally include a contoured cavity within the stator proximate the rotor. One stator includes teeth having contoured ends forming a portion of the aperture within which the rotor operates. Distal ends of the teeth form a relatively large gap compared to typical actuators, wherein the gap is sized to the rotor magnet. An actuator desirably having a high torque constant, low coil resistance and a low coil inductance is provided.

SCULPTED FIELD POLE MEMBERS AND METHODS OF FORMING THE SAME FOR ELECTRODYNAMIC MACHINES

A method, apparatus, article of manufacture and system for producing a field pole member for electrodynamic machinery are disclosed to, among other things, reduce magnetic flux path lengths and to eliminate back-iron for increasing torque and/or efficiency per unit size (or unit weight) and for reducing manufacturing costs. For example, a field pole member structure can either reduce the length of magnetic flux paths or substantially straighten those paths through the field pole members, or both. In one embodiment, a method provides for the construction of field pole members for electrodynamic machines. 1. A field pole member for electrodynamic machines , the field pole member comprising:a plurality of magnetic flux conductors forming at least a field pole core, the plurality of magnetic flux conductors including laminations;a first sculpted pole face at a first end of said field pole member having an elongated shape, said field pole member including the field pole core; anda second sculpted pole face at a second end of said field pole member having said elongated shape, said first sculpted pole face and said second sculpted pole face being disposed at opposite ends of said field pole member in an axial direction extending lengthwise along said elongated shape.2. The field pole member of wherein each of said first sculpted pole face and said second sculpted pole face comprises a portion of a pole face that is substantially coextensive with an angle between 0° and 90° relative to a line parallel with an axis of rotation.3. The field pole member of wherein each of said first sculpted pole face and said second sculpted pole face are configured to confront either an inner rotor or an outer rotor.4. The field pole member of wherein said first sculpted pole face and said second sculpted pole face are coextensive with a first curved surface portion of a first cone and a second curved surface portion of a second cone claim 1 , said first curved surface portion and said ...

Multi-Pole Switched Reluctance D.C. Motor with a Constant Air Gap and Recovery of Inductive Field Energy

A Back EMF reducing DC motor system and method of operation are disclosed. The disclosed system and method are designed to exploit Transformer Voltage properties and include a rotor element shaped to periodically move a flux zone along a stator face. Incoming DC motor power from an external source may be appropriately conditioned and applied to a power supply, Storage Capacitors may also communicate with the power supply. A controller receives power from the power supply and communicates with the DC motor. A position sensor or other indicator may also communicate DC motor operational conditions to the controller. A recapture storage device may receive recaptured power from the DC motor via the controller. The recaptured power may he used to power an external load, or to reduce the input power necessary to operate the DC motor. 1. A direct current motor system comprising: an even number of magnetically conductive salient poles, each salient pole comprising a pole face;', 'a winding for generating magnetic flux within at least one of the salient poles; and', 'wherein the salient poles are arranged in pairs located on opposite sides of a central axis and positioned to form a stator cavity with a substantially constant circumference;, 'a stator assembly comprising a shaft mounted to rotate about the central axis;', 'a magnetically conductive element mounted to the shaft and shaped so that when rotated about the central axis the magnetically conductive element directs a flux zone along the face of a salient pole in a substantially periodic motion, so that the length of the magnetic flux path formed by the magnetically conductive element and the salient pole varies with the substantially periodic motion of the flux zone; and', 'wherein the magnetically conductive element comprises an outer edge that when rotated about the central axis circumscribes a path within the stator cavity that is substantially uniformly spaced from each salient pole face thereby forming a ...

Rotary electric machine and in-vehicle rotary electric machine system

A rotary electric machine includes a rotor; a stator magnet core; a transformer primary coil wound around the stator magnet core in an insulation state and connected to a power circuit; a transformer secondary coil wound around the stator magnet core in an insulation state and connected to a battery by interposing a DC/AC converter.

Armature and motor including armature

An armature includes an insulator mounted on a tooth portion around which a conducting wire is wound. A pair of a first member and a second member, which are combined so as to abut each other, is provided. The first member includes a first end wall which covers an upper side end in the axial direction of the tooth portion and a pair of first side walls which partially cover both side portions of the tooth portion. A first overlap portion is provided on a tip portion of the first side wall. A plurality of ribs extending so as to be parallel or substantially parallel to the winding direction of the conducting wire is disposed on an outer surface of the first overlap portion.

Brushless dc motor

A brushless DC motor, comprising a stator having paired stator teeth, a rotor having paired magnetic poles and a rotating shaft fixed in the center of the rotor, wherein each of the stator teeth is wound with a winding, in each cross section of the stator, the connecting line between the intersection point of a tooth top arc of the stator tooth and the tooth axis of the stator tooth and the center of the tooth top arc can form a mechanical eccentric angle θ with the tooth axis of the stator tooth, which is more than 0 degree and smaller than 90 degrees. The tooth top circle of the stator tooth is designed to be an arc, which is eccentric relative to the rotating center of the rotor, such that the brushless DC motor can eliminate the starting “dead point” and start successfully.

MOTOR AND WASHING MACHINE HAVING THE SAME

Disclosed herein is a washing machine having an improved structure that maintains efficiency over a certain level both in washing and dehydration. The washing machine includes a body, a tub disposed within the body, a drum rotatably disposed within the tub, and a motor coupled to a rear surface of the tub to drive the drum. The motor includes a stator including a plurality of stator cores and a plurality of magnets arranged between the stator cores, and a rotor rotatably disposed at an inner side or outer side of the stator. 1. A washing machine comprising:a body;a tub disposed within the body;a drum rotatably disposed within the tub; anda motor coupled to a rear surface of the tub to drive the drum,wherein the motor comprises:a stator including a plurality of stator cores and a plurality of magnets arranged between the stator cores; anda rotor rotatably disposed at an inner side or outer side of the stator.2. The washing machine according to claim 1 , wherein each of the stator cores comprises:a core body shaped in a circular arc; anda plurality of supports adapted to extend from the core body in a radial direction of the core body to support the magnets disposed on both sides of the core body.3. The washing machine according to claim 2 , wherein the stator comprises a first coil wound around the neighboring ones of the supports of a first one and a second one of the stator cores neighboring each other.4. The washing machine according to claim 3 , wherein the stator comprises a second coil wound around one of the magnets disposed between the neighboring ones of the supports.5. The washing machine according to claim 4 , wherein the first coil is positioned at an outer side of the second coil.6. The washing machine according to claim 1 , wherein the magnets have a shorter length than the stator cores in an axial direction of the stator.7. The washing machine according to claim 4 , wherein the stator comprises an insulator to cover the stator cores and the magnets to ...

SINGLE-PHASE BRUSHLESS MOTOR

A single-phase brushless motor has both superior start-up stability and low cogging torque. In the outer-rotor-type single-phase brushless motor, when a gap width between the rotor and one edge of the salient pole surface is defined as d, a gap width between the rotor and the other edge of the salient pole surface is defined as d, and a minimum gap width between the rotor and the salient pole surface is defined as d, the formula d Подробнее

Pump unit

A pumping set includes an electric motor, which exhibits a stator, a rotor and a can arranged between the stator and rotor, and at least one impeller linked with the rotor, wherein the electric motor has engine electronics designed for electronically commutating the electric motor, and the electric motor and commutation are configured in such a way that, in a state where the rotor chamber inside the can and/or the impeller is not filled with liquid, the rotor is shut down.

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.

Arrangement to ensure an air gap in an electric machine

An arrangement to ensure an air gap in an electrical machine is provided. The electrical machine has a stator arrangement and a rotor arrangement, the rotor arrangement rotating around a longitudinal axis. An air gap is defined by a distance between parts of the rotor arrangement and parts of the stator arrangement, wherein the parts of the stator arrangement are opposite to the parts of the rotor arrangement along a certain length. The stator arrangement includes a lamination stack which is constructed to support a winding of a stator-coil, and the rotor arrangement includes a plurality of permanent magnets. A cross section of the air gap changes along the certain length such that the air gap is not uniform in view to the certain length. The cross section of the air gap is configured by a change in a shape of the lamination stack along the certain length.

Stator of a Claw-Pole Motor

A claw-pole motor for driving a centrifugal pump; consisting of stator laminations in the form of annular discs with claw poles adjoining said stator laminations, which claw poles are arranged opposite permanent-magnet poles of a rotor, a ring-shaped winding and an insulating body, which is arranged between the stator laminations and the winding, and a magnetic return path ring, which is arranged radially around the winding and the stator laminations and bears fixedly against the stator laminations. The claw pole is achieved by the magnetic return path ring comprising at least two lamination rings, which are nested coaxially one inside the other and each have at least one cutout, and being the cutouts are offset with respect to one another through an angle such that said cutouts do not overlap one another, wherein the two cutouts define two angular ranges α1, α2, the lamination rings are connected fixedly to one another at a first connection point, which is removed from the cutouts, in the angular range α1 and likewise at another second connection point, which is removed from the cutouts, in the angular range α2. 110-. (canceled)11. A stator of a claw-pole motor for driving a centrifugal pump , the stator comprising:stator laminations in the form of annular discs;a rotor with permanent-magnetic poles;claw poles adjoining the stator laminations, which claw poles are arranged opposite the permanent-magnetic poles of the rotor;a ring-shaped winding;an insulating body, which is arranged between the stator laminations and the winding; anda return path ring arranged radially around the winding and the stator laminations, the return path ring fixedly bearing against the stator laminations,wherein the return path ring is made up of at least two lamination rings nested coaxially one inside the other as inner and outer lamination rings, each having at least one cutout, with the cutouts being offset at an angle with respect to one another so that they do not overlap, wherein ...

POWER TOOL WITH MOTOR HAVING A MULTI-PIECE STATOR

A power tool is provided including a housing and an electric motor disposed in the housing. The motor includes a stator having pole pieces mated together and field coils disposed on the pole pieces, the stator having an outside diameter. The motor also includes an armature having an outside diameter that is at least 0.625 of the outside diameter of the stator. 1. An electric motor , comprising:a stator having pole pieces mated together and field coils disposed on the pole pieces, the stator having an outside diameter; andan armature having an outside diameter that is at least 0.625 of the outside diameter of the stator.2. The motor of wherein the field coils extend beyond pole tips of the pole pieces on which they are disposed.3. The motor of including insulating sleeves in which the field coils are received claim 1 , the insulating sleeves disposed between the field coils and surfaces of the pole pieces.4. The motor of wherein the pole pieces have mating features.5. The motor of wherein lengths of coil ends of each field coil are insulated with one of TFE and PTFE tubing to provide lead wires for each field coil.6. The motor of wherein the motor is thermally balanced.7. An electric motor claim 1 , comprising:a stator having pole pieces mated together and field coils disposed on the pole pieces, the field coils extending beyond pole tips of the pole pieces on which they are disposed, the stator having an outside diameter; andan armature having an outside diameter that is at least 0.625 of the outside diameter of the stator.8. The motor of wherein the field coils have an included angle of at least 110% of an included angle of the pole tips.9. The motor of wherein the field coils have a packing factor of at least 60%.10. The motor of including insulating sleeves in which the field coils are received claim 7 , the insulating sleeves disposed between the field coils and surfaces of the pole pieces.11. The motor of wherein the pole pieces have mating features.12. A hand- ...

STATOR OF MOTOR AND MOTOR

Provided is a stator of a motor which is capable of reducing an iron loss generated in a motor and thereby attaining a high-efficient motor. A stator of a motor comprises a yoke of a tubular shape; and teeth each of which includes an extending portion extending inward in a radial direction of the yoke from the yoke and an increased-width portion formed at a tip end of the extending portion so as to have a greater width than the extending portion in a circumferential direction of the yoke; wherein the extending portion has a narrower portion having a smaller width than a remaining portion of the extending portion. 1. A stator of a motor comprising:a yoke of a tubular shape; andteeth each of which includes an extending portion extending inward in a radial direction (hereinafter will be simply referred to as radially) of the yoke from the yoke and an increased-width portion formed at a tip end of the extending portion so as to have a greater width than the extending portion in a circumferential direction (hereinafter will be simply referred to as circumferential) of the yoke;wherein the extending portion has a narrower portion having a smaller width than a remaining portion of the extending portion.2. The stator of the motor according to claim 1 , wherein the narrower portion has a circumferential width which is smaller than a circumferential width of a remaining portion of the extending portion.3. The stator of the motor according to claim 2 , wherein the extending portion has a constant-width portion extending radially in a straight-line shape so as to have a constant circumferential width claim 2 , and the narrower portion having the circumferential width which is smaller than the circumferential width of the constant-width portion.4. The stator of the motor according to claim 3 ,wherein the narrower portion is provided at a base end portion of the extending portion; andwherein the constant-width portion extends radially inward from a tip end of the narrower portion ...

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.

MOTOR STATOR AND MOTOR

A motor stator of the invention is provided with a laminated stator core comprising a plurality of core pieces having teeth and linked by intermediate thin-wall portions. The thin-wall portions are bent to form the stator core into an annular shape with two ends of the stator core joined by welding, and slots are formed between adjoining pairs of the teeth. A welded portion of the stator core is not near a center line in a radial direction of any of the slots. 1. A motor stator provided with a laminated stator core comprising:a plurality of core pieces having teeth and linked by intermediate thin-wall portions, the thin-wall portions being bent to form the stator core into an annular shape with two ends of the stator core joined by welding; andslots formed between adjoining pairs of the teeth,wherein a welded portion of the stator core is not near a center line in a radial direction of any of the slots.2. The motor stator of claim 1 , wherein the welded portion of the stator core is near a center line in a radial direction of one of the teeth.3. A motor stator provided with a laminated stator core comprising:a plurality of core pieces having teeth and linked by intermediate thin-wall portions, the thin-wall portions being bent to form the stator core into an annular shape with two ends of the stator core joined; andslots formed between adjoining pairs of the teeth,wherein the two ends of the stator core are fixed with resin molding without being welded.4. A motor provided with the stator as defined in .5. A motor provided with the stator as defined in .6. A motor provided with the stator as defined in . The present invention relates to a stator of a permanent-magnet brushless motor and a motor.As conventional motor stators designed to enhance yield of a core material used for manufacturing laminated cores, one of the structures hitherto known is made of strip-like core members die-cut from the core material which are laminated, changed into an annular shape after a ...

Segmented electric machine core secured with belt and method of manufacture

An electric machine having a segmented core wherein the core includes a plurality of core segments. The segments are secured together with a belt member that substantially encircles the core segments but does not extend the full axial length of the segments. In some embodiments, the individual segments include a recess on their outer radial surface in which the belt member is positioned. A method of assembling an electric machine having a segmented core is also disclosed. Coils are wound about the poles of a plurality of segments. After forming the coils on the segments, the segments are joined together with a belt member wherein the belt member does not extend the full axial length of the core segments and is positioned between the two axial ends of the core assembly.

RELUCTANCE MOTOR

Some exemplary reluctance motors disclosed herein comprise a rotor having a plurality of radially outwardly projecting rotor poles and a plurality of generally U-shaped stator units positioned circumferentially around the rotor. Each stator unit is spaced circumferentially apart and magnetically isolated from adjacent stator units. Each stator unit comprises a circumferentially extending yoke and two stator poles extending radially inwardly from the yoke, such that the stator poles are positioned adjacent to the rotor poles. The motor further comprises a plurality of coils of electrical conductors, wherein each of the coils is coiled around a respective one of the yokes of the stator units. In some embodiments, non-magnetic stator supports are positioned between the stator units and configured to engage circumferential sides of the stator units to hold the stator units in radial and circumferential alignment with the rotor. 1. A reluctance motor comprising:a rotor having a plurality of radially outwardly projecting rotor poles and being rotatable about a central rotation axis;a plurality of stator units positioned circumferentially around the rotation axis and radially outwardly of the rotor, each stator unit being spaced circumferentially apart from adjacent stator units, wherein each stator unit comprises a circumferentially extending yoke and two stator poles extending radially inwardly from the yoke, such that the stator poles are positioned adjacent to the rotor poles;a plurality of coils of electrical conductors, wherein at least one of the coils is coiled around one of the yokes of the stator units.2. The motor of claim 1 , wherein the stator units each comprise a generally U-shaped lamination stack and the stator units are magnetically isolated from one another.3. The motor of claim 1 , wherein each coil comprises an outer portion and an inner portion claim 1 , the outer portion being located along a radially outer side of the respective yoke and the inner ...

ACTUATOR

An actuator includes: a coil; a permanent magnet rotor secured to and rotatably supported by an output shaft inside the coil; a bobbin made of a non-magnetic material and around which the coil is wound; a first stator inserted into and secured to the bobbin in one direction, and including an inner magnetic pole portion and an outer magnetic pole portion extending inside and outside the coil in an axial direction of the rotor, respectively; and a second stator inserted into and secured to the bobbin in a direction opposite to the one direction, and including an inner magnetic pole portion and an outer magnetic pole portion extending inside and outside the coil in the axial direction of the rotor, respectively. 1. An actuator comprising:a coil;a permanent magnet rotor secured to and rotatably supported by an output shaft inside the coil;a bobbin made of a non-magnetic material and around which the coil is wound;a first stator inserted into and secured to the bobbin in one direction, and including an inner magnetic pole portion and an outer magnetic pole portion extending inside and outside the coil in an axial direction of the rotor, respectively; anda second stator inserted into and secured to the bobbin in a direction opposite to the one direction, and including an inner magnetic pole portion and an outer magnetic pole portion extending inside and outside the coil in the axial direction of the rotor, respectively,wherein the inner magnetic pole portion and the outer magnetic pole portion of the first stator are arranged alternately in a circumferential direction, andthe inner magnetic pole portion and the outer magnetic pole portion of the second stator are arranged alternately in the circumferential direction.2. The actuator of claim 1 , wherein the inner magnetic pole portion and the outer magnetic pole portion of the first stator and the inner magnetic pole portion and the outer magnetic pole portion of the second stator are each formed by bending a plurality of ...

ELECTRIC MOTOR

An electric motor includes a stator, a rotor and a can arranged between the stator and the rotor, wherein the stator exhibits several stator pole pairs, which are each formed by two adjacent stator poles, which are designed in such a way as to generate oppositely polarized magnetic fields, and wherein the rotor exhibits a plurality of magnetic rotor poles distributed over the circumference, and is configured in such a way as to enable a magnetic flux between two adjacent rotor poles, as well as a pumping set with such an electric motor. 115.-. (canceled)1648648. An electric motor comprising a stator () , a rotor () and a can () arranged between the stator () and the rotor () , wherein{'b': 4', '26', '20, 'the stator () includes several stator pole pairs (), which are each formed by two adjacent stator poles (), which are configured to generate oppositely polarized magnetic fields, and wherein'}{'b': 8', '34', '34, 'the rotor () includes a plurality of magnetic rotor poles () distributed over the circumference, and is configured to enable a magnetic flux between two adjacent rotor poles ().'}17262028. The electric motor according to claim 16 , wherein the stator poles of a stator pole pair () are designed as pole webs () claim 16 , which are joined together by a magnetically soft connection element ().182024242026. The electric motor according to claim 16 , wherein the stator poles are designed as pole webs () with coils () arranged thereon claim 16 , wherein the coils () of two adjacent stator poles () forming a stator pole pair () are electrically connected in series.192026. The electric motor according to claim 16 , wherein the stator poles () of a pole pair () include a shared coil.2020262028. The electric motor according to claim 19 , wherein the stator poles () of a stator pole pair () are designed as pole webs () claim 19 , which are joined together by a magnetically soft connection element () claim 19 , wherein at least one coil is situated on the connection ...

Motor stator with reduced coil configuration

A motor is provided for use in a machine. The motor includes a segmented stator comprising magnetically isolated core segments.

Stator of rotary electric machine, and manufacturing method therefor

A stator of a rotary electric machine, in which an insulating capacity higher than or equal to an insulating capacity of a flat portion of a stator core can be maintained at edge portions of the stator core. The stator of the rotary electric machine includes a core-sheet laminate that is formed by laminating a plurality of core sheets made of metal plates; a coating film that is made of an insulating paint coated on a surface of the core-sheet laminate; a stator coil that is made of a conductive wire wound around the core-sheet laminate via the coating film; and bobbins made of an insulating material, which are inserted between the coating film and the stator coil and prevent the conductive wire of the stator coil from contacting the coating film that is coated on edge portions of the core-sheet laminate, or relieve pressure caused by the contact.

STATOR CORE AND MOTOR DEVICE INCLUDING THE SAME

Disclosed is a stator core including a core back fixedly inserted onto an outer surface of a stationary member, a plurality of teeth protruding from the core back in an outer diameter direction, wherein a coil is wound around the plurality of teeth so as to allow magnetic flux from a magnet to flow to the teeth, front end portions defining outer edges of the teeth, respectively, and body portions defining a length of the teeth and having a width increasing from the core back toward the front end portions, respectively. 110-. (canceled)11. A stator core comprising:a core back fixedly inserted onto an outer surface of a stationary member;a plurality of teeth protruding from the core back in an outer diameter direction, wherein a coil is wound around the plurality of teeth so as to allow magnetic flux from a magnet to flow to the teeth;front end portions defining outer edges of the teeth, respectively; andbody portions defining a length of the teeth, each body portion including an indented portion positioned in an outer portion of a corresponding one of the body portions, and each indented portion positioned closer to a corresponding front end portion than the core back.12. The stator core of claim 11 , wherein:the body portions each having a width increasing from the core back toward the front end portions, respectively, andeach indented portion being depressed in one surface of a corresponding one of the body portions while protruding to the other surface thereof.13. The stator core of claim 12 , wherein the indented portions have circumferential surfaces with the same diameter.16. A motor device comprising:a stationary member having an insertion hole therein;a rotating member inserted in the insertion hole to be rotatable relative to the stationary member; and a core back fixedly inserted onto an outer surface of a stationary member;', 'a plurality of teeth protruding from the core back in an outer diameter direction, wherein a coil is wound around the plurality of ...

Power factor correction drive circuit topologies and control for switched reluctance machines

Drive circuits that provide power factor correction and input current waveform shaping for controlling the speed and torque in a switched reluctance machine (SRM). The machine's phase windings are split into two segments, one of which is used for active power factor correction, input ac current waveform shaping and partial torque generation and the other of which is used for torque generation.

Motor and method for manufacturing stator core and rotor core of motor

A motor includes a first, second, and third motor unit. First, second and third rotors each including a first and second rotor core and a field magnet. The first and second rotor cores include respectively first and second rotor core bases and a plurality of first and second claw magnetic poles that are arranged alternately along a circumferential direction of the motor. The field magnet causes the plurality of first claw magnetic poles and the plurality of second claw magnetic poles to function as different magnetic poles. Each of first and second stators including pluralities of first claw magnetic poles and second claw magnetic poles alternately arranged along the circumferential direction of the motor. The second stator core having a coil section.

MOTOR CORE COMPONENT AND METHOD FOR INCREASING MATERIAL UTILIZATION AND SLOT FILL RATIO THEREOF

A motor core component () comprising a plurality of poles () and an annular or ring-shaped yoke (). The yoke () is manufacturing by bending or folding a belt component () comprising a plurality of yoke portions (), allowing for greater material utilization during production. At least a portion of the poles () are a separate component from the yoke portions (), such that field coils may be wound around the pole bodies () prior to assembling the poles () and yoke () together, thereby allowing for more convenient winding and a higher slot fill ratio. 1. A core component for an electric motor , comprising:a yoke formed from at least one belt component comprising a plurality of yoke portions in linear connection;a plurality of pole bodies extending radially from the plurality of yoke portions; anda plurality of pole shoes extending circumferentially outward from ends of the plurality of pole bodies remote from the plurality of yoke portions, wherein the plurality of pole shoes and the plurality of yoke portions constitute separate components.2. The core component of claim 1 , wherein an inner surface of a pole shoe of the plurality of pole shoes and a side edge of a pole body of the plurality of pole bodies are disposed at an angle between 100° to 120°.3. The core component of claim 1 , wherein a circumferential length that a pole shoe of the plurality of pole shoes extends away from a pole body of the plurality of pole bodies is greater than a width of the pole body.4. The core component of claim 1 , wherein a distance between two adjacent pole bodies of the plurality of pole bodies is greater than a width of a pole body of the plurality of pole bodies.5. The core component of claim 1 , wherein the plurality of pole bodies are integrally formed with the plurality of pole shoes and constitute separate components from the plurality of yoke portions.6. The core component of claim 5 , wherein:a yoke portion of plurality of yoke portions in the at least one belt component ...

BRUSHLESS MOTOR, STATOR, STATOR MANUFACTURING METHOD AND BRUSHLESS MOTOR MANUFACTURING METHOD

A brushless motor comprising: a rotor; a stator core disposed at a radial direction outside of the rotor, and a stator case. The stator core includes an outer ring shaped section, teeth sections projecting out from the outer ring shaped section toward a radial direction inside, and an inner ring shaped section extending from end portions of the teeth sections. Protruding portions are formed at the outer ring shaped section so as to project toward a radial direction outside and so as to be disposed at even intervals around a circumferential direction of the outer ring shaped section. The stator case is integrated together with the stator core by a plurality of plastic deformation portions formed at an outer peripheral portion of the stator case at locations facing towards the protruding portions, and the plastic deformation portions are disposed at even intervals along a circumferential direction of the stator case. 1. A brushless motor comprising:a rotor that includes a rotation shaft section that is supported so as to be rotatable about its axial line and magnets that are disposed along a circumferential direction of the rotation shaft section; an outer ring shaped section that is formed in a ring shape,', 'teeth sections that project out from the outer ring shaped section toward a radial direction inside of the outer ring shaped section and are wound with conductive wire coils, and', 'an inner ring shaped section that is configured by rotor-side faces that extend from end portions of the teeth sections, the end portions being adjacent to the rotor, along a rotor circumferential direction and configure circular arc shaped faces with the rotor as the axial center, wherein', 'protruding portions are formed at the outer ring shaped section so as to project toward a radial direction outside of the outer ring shaped section and so as to be disposed at even intervals around a circumferential direction of the outer ring shaped section as viewed along an axial direction of ...

Housingless transverse flux electrical machine

A housingless transverse flux electrical machine (TFEM) includes a pair of halves adapted to receive therein a plurality of cores and a coil therein. The halves are the exterior boundary for the environment and the TFEM can be in operating configuration without further housing.

LAMINATED CORE AND ELECTRIC MOTOR

A laminated core includes a plurality of electrical steel sheets that are stacked on one another. All sets of the electrical steel sheets adjacent to each other in a stacking direction are fixed to each other in the laminated core. Some sets of electrical steel sheets among all sets of the electrical steel sheets are fastened but not adhered to each other, and the remaining sets of electrical steel sheets are adhered but not fastened to each other. 1. A laminated core comprising:a plurality of electrical steel sheets that are stacked on one another,wherein all sets of the electrical steel sheets adjacent to each other in a stacking direction are fixed to each other in the laminated core, andwherein some sets of electrical steel sheets among all sets of the electrical steel sheets are fastened but not adhered to each other, and the remaining sets of electrical steel sheets are adhered but not fastened to each other.2. The laminated core according to claim 1 ,wherein the plurality of electrical steel sheets are adhered every other or more sets in the stacking direction.3. The laminated core according to claim 2 ,wherein the plurality of electrical steel sheets are adhered every prime-numbered sets in the stacking direction.4. The laminated core according to claim 2 ,wherein portions adhered to each other every different numbered sets in the stacking direction are present in a mixed manner in the plurality of electrical steel sheets.5. The laminated core according to claim 1 ,wherein the electrical steel sheets include an annular core back part and a plurality of tooth parts protruding in a radial direction of the core back part from the core back part and disposed at intervals in a circumferential direction of the core back part.6. The laminated core according to claim 1 ,wherein an average thickness of the adhesion part is within a range of 1.0 μm to 3.0 μm.7. The laminated core according to claim 1 ,wherein an average tensile modulus of elasticity E of the adhesion ...

Pancake motor

A gear motor for decreasing speed at a mechanical power output is provided with a housing; an electric motor including an outer stator and a rotor surrounded and driven by the outer stator; a planetary gear train including planet gear assemblies, a stationary ring gear at one end of the planet gear assemblies, and a driving ring gear at the other end of the planet gear assemblies. Each planet gear assembly includes a first gear and a second gear coaxial with and co-rotated with the first gear. The first and second gears are disposed in a carrier. The first gear meshes the stationary ring gear. The second gear meshes the driving ring gear. A driving shaft is rotatably disposed through the housing and secured to the driving ring gear as a mechanical power output.

INTERCONNECTOR FOR A STATOR OF AN ELECTRICAL MACHINE AND STATOR OF AN ELECTRICAL MACHINE COMPRISING AN INTERCONNECTOR OF THIS TYPE

An interconnector having circular conductors for a stator of a polyphase rotary electric machine including a body having a winding provided with a plurality of coils each having input and output ends, the interconnector comprising a first portion including at least three circular conductors having an annular shape stacked axially on top of one another and electrically isolated from one another, and a second portion including at least one electrically insulated circular conductor having an annular shape. The first and second portions are intended for being installed on either side of the body of the stator. The circular conductors of the first portion and the circular conductors of the second portion have, on the inner periphery thereof, tabs projecting inwardly for welding the input ends and the output ends of the coils, respectively. 13134111219191192223234223112323422312236191192abab. Interconnector with conductors (-) with an annular form for a stator of a polyphase rotary electrical machine comprising a stator () body () which supports a winding provided with a plurality of coils () , each of which has input () and output () ends , wherein it comprises a first part () comprising at least three conductors (-) with an annular form stacked axially on one another and insulated electrically against one another , and a second part () comprising at least one conductor () with an annular form which is insulated electrically , said first and second parts being designed to be implanted on both sides of the stator body () , and in that the conductors (-) with an annular form of the first part () and the conductor () with an annular form of the second part () support on their inner periphery lugs () which extend projecting towards the interior , for welding respectively of the input ends () and output ends () of the coils.2312219b. Interconnector according to claim 1 , wherein the conductor () of the second part () is a neutral conductor for electrical coupling of the coils ...

MOTOR AND ELECTRICAL APPARATUS HOUSING SAME

A motor of this invention comprises a rotor having a permanent magnet, the number of which magnet poles is P, and a stator including M pcs of teeth, the teeth arranged in a circumferential direction in a manner to face the permanent magnet through a spatial gap, wherein the stator includes stator core having the number M of the teeth, and a winding wire wound about each of the tooth, wherein the number P of the magnet poles and the number M of the teeth have a relation defined by formulae (2/3)M Подробнее

Brushless Motor for a Power Tool

A brushless motor includes a stator and a rotor rotatably received within the stator, the rotor including a rotor shaft, a rotor body mounted on the rotor shaft and including axial slots, permanent magnets disposed within the axial slots, and a rotor end cap provided at an end of the rotor body to axially retain the permanent magnets within the slots. The rotor end cap includes an outer planar portion that is in contact with the end of the rotor body, and ribs angularly extending from the outer planar portion towards a center portion forming openings therebetween to allow passage of air between adjacent openings in thermal contact with the end of the rotor body. 1. A brushless direct-current (DC) motor comprising:a stator assembly including a stator core, a plurality of teeth extending radially-inwardly from the stator core, and a plurality of windings wound around the plurality of teeth; anda rotor assembly rotatably received within the stator assembly, the rotor assembly including a rotor shaft, a rotor body mounted on the rotor shaft and including a plurality of axial slots, a plurality of permanent magnets disposed within the axial slots, and a rotor end cap provided at an end of the rotor body to axially retain the plurality of permanent magnets within the plurality of slots,wherein the rotor end cap comprises an outer planar portion that is in contact with the end of the rotor body, and a plurality of ribs angularly extending from the outer planar portion towards a center portion forming a plurality of openings therebetween to allow passage of air between at least two of the adjacent openings in thermal contact with the end of the rotor body.2. The motor of claim 1 , wherein the rotor end cap further comprises a plurality of inner walls extending from the center portion to the outer planar portion in contact with at least a portion of the plurality of permanent magnets to axially retain the plurality of permanent magnets within the rotor body.3. The motor of ...

Insulator and Motor Having the Same

Disclosed is an insulator of a motor, including a first side wall portion and a second side wall portion in which a coil is wound on outsides thereof, and which are disposed to face each other, to form an accommodation space at insides thereof, and also to form an entrance portion through which a stator is inserted; a connecting portion integrally formed with the first side wall portion and the second side wall portion; and a clip portion formed to protrude from at least one of an end of the first side wall portion and an end of the second side wall portion, and disposed at the entrance portion. Therefore, assemblability of the insulator with the stator can be ensured, and a manufacturing cost and a manufacturing time can be reduced.

STARTER FOR A THERMAL ENGINE OF A MOTOR VEHICLE PROVIDED WITH A ROTARY ELECTRICAL MACHINE WITH AN IMPROVED PROJECTING POLE INDUCTOR AND CORRESPONDING POLE SHOE

A motor vehicle heat engine starter comprising a rotary electric machine () that has a rotor () and a stator () and comprises a plurality of magnetic poles () arranged on an internal circumference of a yoke (). Each magnetic pole () is made up of a salient pole shoe () surrounded by a winding (). The starter is characterized in that an air gap (), separating the rotor () from the magnetic poles () of the stator (), varies according to the circumference thereof. The invention also relates to a corresponding pole shoe (). 1159865666570769. Starter () for a thermal engine of a motor vehicle comprising a rotary electrical machine () provided with a rotor () and a stator () , comprising a plurality of magnetic poles () arranged on an inner circumference of a head () , wherein each magnetic pole () projects relative to the head surrounded by a winding () , wherein an air gap () between a circumferential surface of at least two magnetic poles opposite a circumferential surface of said rotor and a circle with a radius of the exterior of the rotor () varies by at least 1 mm.269. Starter according to claim 1 , wherein each magnetic pole is constituted by a pole shoe () fitted against the head of the stator.365. Starter according to claim 1 , wherein the stator comprises a stack of plates forming the head () and the different magnetic poles.47377973. Starter according to claim 1 , comprising a central portion around which the coil is wound and two flares () on both sides of the central area () claim 1 , in which the air gap between a circumferential surface of at least two magnetic poles opposite a circumferential surface of the said rotor and a circle with a radius of the exterior of the rotor () varies between 1 mm and the depth (P) contained measured between the outer radius of one of the flares and the inner radius of this same flare ().5. Starter according to claim 1 , wherein the magnetic pole comprises a groove which forms the variation of the air gap.673. Starter ...

Method for manufacturing stator of rotary electric machine

A method for manufacturing a stator of a rotary electric machine includes: assembling an insulator and a stator coil to a tooth; and after assembling, pouring a liquid adhesive into an opening of the insulator from an outer side of the stator coil so as to fix the stator coil to a stator core.

ASYMMETRIC SALIENT PERMANENT MAGNET SYNCHRONOUS MACHINE

A permanent magnet machine is disclosed, including a stator assembly which includes a housing, a stator backiron, a plurality of windings disposed in the housing coupled to a plurality of electrical connections, and a plurality of stator teeth coupled to the stator backiron. The permanent magnet also includes a rotor assembly which includes a center configured to couple to a mechanical coupling member disposed about the center, an inner core, positioned around the center, an outer core disposed around the inner core, and a plurality of outwardly protruding poles radially located within the stator assembly each outwardly protruding pole having an outer surface adjacent to at least one tooth of the plurality of teeth. Each outer surface of each outwardly protruding pole having a rotor tooth extending from the outer core and a permanent magnet disposed next to the rotor tooth. 1. A permanent magnet machine , comprising: a housing,', 'a stator backiron,', 'a plurality of windings disposed in the housing coupled to a plurality of electrical connections, and', 'a plurality of stator teeth coupled to the stator backiron;, 'a stator assembly including'} a center configured to couple to a mechanical coupling member disposed about the center,', 'an inner core disposed around the center,', 'an outer core disposed around the inner core, and', 'a plurality of outwardly protruding poles radially located within the stator assembly each outwardly protruding pole having an outer surface adjacent to at least one tooth of the plurality of teeth;, 'a rotor assembly including'}wherein each outer surface of each outwardly protruding pole having a rotor tooth extending from the outer core and a permanent magnet disposed next to the rotor tooth.2. The permanent magnet machine of claim 1 , wherein upon applying a plurality of electrical currents in a first form claim 1 , each to a corresponding electrical connection of the plurality of electrical connections claim 1 , the rotor assembly ...

EDDY CURRENT RETARDER WITH ELECTRICITY GENERATING FUNCTION

An eddy current retarder includes a brake drum, a magnet retention ring, and a switch mechanism. The brake drum is fixed to a rotating shaft. The magnet retention ring is arranged inside the drum and retains magnets at regular intervals entirely in a circumferential direction such that the magnets face the inner peripheral surface of the drum. The switch mechanism includes switch plates that switch, during braking, to a state in which magnetic circuits develop between the magnets and the drum, and switch, during non-braking, to a state in which no magnetic circuits develop. Protrusions are provided on an end face of the drum at regular intervals entirely in the circumferential direction. Electricity generating coils are provided in a non-rotating part of a vehicle at regular intervals entirely in the circumferential direction such that the electricity generating coils face the regions of the end face of the drum. 1. An eddy current retarder with an electricity generating function , comprising:a cylindrical braking member that is fixed to a rotating shaft of a vehicle;a magnet retention member of a ferromagnetic material that is arranged inside the braking member, the magnet retention member retaining a plurality of magnets at regular intervals entirely in a circumferential direction such that the magnets face an inner peripheral surface of the braking member; anda brake switching mechanism that switches, during braking, to a state in which magnetic circuits develop between the magnets and the braking member, and switches, during non-braking, to a state in which no magnetic circuits develop, whereina plurality of protrusions are provided on an end face of the braking member in an axial direction at regular intervals entirely in the circumferential direction,a plurality of electricity generating coils are provided in a non-rotating part of the vehicle at regular intervals entirely in the circumferential direction such that the electricity generating coils face regions ...

SYNCHRONOUS MOTOR

A synchronous motor is configured such that a rotor, in which permanent magnets having poles are provided at an equiangular interval in a circumferential direction, with magnetic poles with different polarities being alternately provided, is provided to face a stator, in which nine teeth are formed at an equiangular interval in a circumferential direction, and the tip width of the central tooth of each phase among the teeth of each phase grouped into three phases with each phase including three adjacent teeth is larger than 32° and smaller than 40°. 1. A synchronous motor comprising:a stator in which nine teeth are formed on an annular iron core centering on a shaft center at an equiangular interval in a circumferential direction, the teeth extending toward the shaft center; anda rotor in which permanent magnets having 10 poles are provided on an outer periphery centering on the shaft center at an equiangular interval in a circumferential direction, with magnetic poles with different polarities being alternately provided, the rotor being arranged on an inner side of the stator to face the stator, whereinthree adjacent teeth of the nine teeth constitute one phase,stator windings are wound continuously in a concentrated manner around the teeth for one phase, with winding directions of the stator windings of each phase being opposite to each other between adjacent teeth as viewed from the shaft center, andan angle of a tip portion of a central tooth, which faces the rotor, among the three teeth of each phase is larger than 32° and smaller than 40° and is smaller than an angle of teeth at both ends of each phase.2. The synchronous motor according to claim 1 , wherein the angle of the tip portion of the central tooth of each phase among the nine teeth is approximately 36°.3. The synchronous motor according to claim 1 , wherein angles of tip portions of the teeth at both ends of each phase among the nine teeth are the same.4. The synchronous motor according to claim 3 , ...

ELECTRICAL MACHINE

Electric machines may be attained by a variety of systems, processes, and techniques. In particular implementations, an electric machine may include a stator core composed of a variety of circumferential segments and a rotor core. In certain implementations, the stator core may include a number of individually-formed poles, each including a radially extending portion and a base portion. The base portions may be coupled together to form the stator core, and the radially extending portions may defined an inner cavity. The rotor core may include a number of radially extending poles, with the rotor sized to rotate inside the inner cavity of the stator. 1. An electric motor comprising:a stator core including a number of individually-formed primary poles, each primary pole including a radially extending portion and a base portion, the base portions being coupled together to form the stator core, and the radially extending portions defining an inner cavity; anda rotor core comprising a number of radially extending poles, the rotor sized to rotate inside the inner cavity of the stator.2. The electric motor of claim 1 , wherein the primary poles comprise electrical coils that wind radially relative to the rotor core from the outside of the stator core to the inside of the stator core.3. The electric motor of claim 2 , wherein the poles are C-shaped.4. The electric motor of claim 3 , wherein the magnetic flux generated by one of the primary poles travels circumferentially around the rotor core from one rotor pole to an adjacent rotor pole.5. The electric motor of claim 2 , further comprising a housing that covers the outside portions of the coils.6. The electric motor of claim 1 , wherein the magnetic flux generated by one of the primary poles travels circumferentially around the rotor core from one rotor pole to an adjacent rotor pole.7. The electric motor of claim 1 , wherein the stator core comprises a number of individually-formed secondary poles claim 1 , the secondary ...

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.

ELECTRIC MOTOR

An electric motor comprising a stator and a rotor. The stator has at least one resonant circuit and the rotor has at least one resonant circuit rotatable with the rotor relative to at least one stator resonant circuit such that at least one rotor resonant circuit is angularly displaceable relative to at least one stator resonant circuit. At least one stator resonant circuit and at least one rotor resonant circuit are configured to have at least substantially the same self-resonant frequency. The electric motor uses magnetic resonant coupling between one or more stator resonant circuits and one or more rotor resonant circuits to produce usable torque. 1. An electric motor comprising a stator and a rotor , wherein the stator comprises at least one resonant circuit and the rotor comprises at least one resonant circuit rotatable with the rotor relative to at least one stator resonant circuit such that at least one rotor resonant circuit is angularly displaceable relative to at least one stator resonant circuit , wherein at least one stator resonant circuit and at least one rotor resonant circuit are configured to have at least substantially the same self-resonant frequency.2. An electric motor as claimed in claim 1 , wherein at least one stator resonant circuit is operable to generate an alternating magnetic field in response to a supplied alternating current claim 1 , and wherein the frequency of the alternating current is varied as the angular displacement of a rotor resonant circuit changes relative to a stator resonant circuit.3. An electric motor as claimed in claim 1 , wherein at least one rotor resonant circuit and at least one stator resonant circuit are configured to resonate at two different frequencies above a critical coupling coefficient for each angular displacement claim 1 , one frequency being a high resonant splitting frequency which is higher than the self-resonant frequency and one frequency being a low resonant splitting frequency which is lower than ...

Permanent magnet auxiliary synchronous reluctance motor and electric vehicle provided with same

A permanent magnet auxiliary synchronous reluctance motor includes a stator portion and a rotor portion. The stator portion includes a stator core and a winding embedded in the stator core. The stator core is provided with a stator tooth and a stator slot. The rotor portion is provided inside the stator portion; a rotor body of the rotor portion is provided with a plurality of permanent magnet slot groups which are evenly arranged along a circumferential direction of the rotor body; each of the permanent magnet slot groups is provided with multiple layers of permanent magnet slots; a distance between end portions of adjacent permanent magnet slots between adjacent permanent magnet slot groups is less than or equal to a width of a stator tooth boot of the stator tooth, and the number of slots per pole and per phase of the motor is two or three.

ROTARY ELECTRIC MACHINE

A rotary electric machine includes magnetic poles to which a coil is attached. A connection portion between a conductive member and a coil end of the coil is arranged in an inter-pole gap between the magnetic poles. The rotary electric machine may include a rotor and a stator. The magnetic poles may be magnetic poles of the stator. 1. A rotary electric machine comprisinga plurality of magnetic poles to which a coil is attached, whereina connection portion between a conductive member and a coil end of the coil is arranged in an inter-pole gap between the plurality of magnetic poles.2. The rotary electric machine according to claim 1 , comprisinga rotor and a stator, whereinthe plurality of magnetic poles are magnetic poles of the stator.3. The rotary electric machine according to claim 2 , whereinthe rotor is arranged radially outward of a rotary body, and the stator is arranged further radially outward of the rotor.4. The rotary electric machine according to claim 1 , whereinthe conductive member includes a plurality of power end members,the connection portion is one of a plurality of connection portions,each of the plurality of power end members has at least one of the plurality of connection portions,the inter-pole gap is one of a plurality of inter-pole gaps defined by the plurality of magnetic poles, andeach of the plurality of connection portions is arranged in different one of the plurality of inter-pole gaps.5. The rotary electric machine according to claim 1 , whereinthe conductive member includes a neutral point member,the connection portion is one of a plurality of connection portions of the neutral point member,the inter-pole gap is one of a plurality of inter-pole gaps defined by the plurality of magnetic poles, andeach of the plurality of connection portions is arranged in different one of the plurality of inter-pole gaps.6. The rotary electric machine according to claim 4 , further comprisinga terminal block supporting the plurality of power end ...

STATOR ASSEMBLY INCLUDING INSULATION MEMBER AND METHOD OF ASSEMBLY THEREOF

A stator assembly includes an annular body extending about a central axis and a plurality of stator teeth extending axially from the annular body and spaced circumferentially about the annular body. The stator assembly includes at least one conduction coil and at least one bobbin configured to support the at least one conduction coil. The at least one bobbin is coupled to a first stator tooth such that the at least one conduction coil extends about the first stator tooth. The stator assembly further includes at least one insulation member configured to couple to a second stator tooth and extend into a slot between the second stator tooth and the at least one conduction coil. The at least one insulation member includes an end wall configured to cover the distal end of the second stator tooth when the at least one insulation member is coupled to the second stator tooth. 1. A stator assembly for an electric motor assembly , said stator assembly comprising:an annular body extending about a central axis;a plurality of stator teeth extending axially from said annular body and spaced circumferentially about said annular body, said plurality of stator teeth including a first stator tooth and a second stator tooth, said first stator tooth and said second stator tooth defining a slot therebetween, said second stator tooth including a proximal end and a distal end;at least one conduction coil;at least one bobbin configured to support said at least one conduction coil, said at least one bobbin coupled to said first stator tooth such that said at least one conduction coil extends about said first stator tooth; andat least one insulation member configured to couple to said second stator tooth and extend into said slot between said second stator tooth and said at least one conduction coil, wherein said at least one insulation member includes an end wall configured to cover said distal end of said second stator tooth when said at least one insulation member is coupled to said ...

Stator For An Electrical Machine Having an Interconnection Device For Stator Coils, And Electrical Machine Having A Stator Of This Kind

A stator of an electric machine has an annular stator lamination stack at which stator coils with coil ends are arranged by winding bodies and are interconnected with an interconnection device that has a plurality of connection conductors arranged coaxially to one another and which are electrically insulated from one another by insulating layers. The connection conductors have coil connection regions for the coil ends and power connection regions for supplying power to the electric machine (). The connection conductors are annular disks and are arranged in an axially staggered manner at the stator. Each connection conductor has at least one fastening portion for fastening to the stator and a winding body has at least one connection area. The fastening portions of the connection conductors are arranged to overlap one another, and the connection conductors are fastened along with them to the connection area of the winding body. 115.-. (canceled)16. A stator of an electric machine comprising:a quantity of stator coils with coil ends;insulating layers;an annular stator lamination stack at which the quantity of stator coils with coil ends is arranged;a plurality of connection conductors constructed as annular disks and are arranged in an axially staggered manner at the stator and having coil connection regions for the coil ends and power connection regions for supplying power to the electric machine;an interconnection device for the quantity of stator coils which is arranged at the stator lamination stack on a front side, wherein the interconnection device has the plurality of connection conductors arranged coaxial to one another and which are electrically insulated from one another by the insulating layers; andat least one fastening portion for each connection conductor configured to fasten each connection conductor to the stator, wherein the fastening portions of the connection conductors are arranged so as to overlap one another; anda winding body has at least one ...

MOLDED MOTOR

A molded motor of the present invention includes a rotor, a stator, a pair of shaft bearings, a pair of metal brackets, and a molding resin. The rotor has: a rotary shaft extending in a shaft direction; and a rotary body that has a permanent magnet and is fixed to the rotary shaft. The stator has: a stator core on which a plurality of salient poles are formed; and a plurality of coils each wound on each salient pole via an insulator, where the stator is covered by the molding resin and is disposed to face the rotor. The pair of metal brackets each fix each of the shaft bearings, and the shaft bearings rotatably support the rotor. Further, the rotary body has a dielectric layer formed between the rotary shaft and an outer peripheral surface of the rotary body. A metal member is provided, on an outer peripheral side of a coil end of the coil and on at least a part facing the coil end, in a circumferential direction. 1. A molded motor comprising: a rotary shaft extending in a shaft center direction, and', 'a rotary body that has a permanent magnet and is fixed to the rotary shaft;, 'a rotor including'} a stator core that a plurality of salient poles are formed on, and', 'a plurality of coils each wound on each of the salient poles of the stator core via an insulator;, 'a stator disposed to face the rotor, the stator including'}a pair of shaft bearings that rotatably support the rotor; anda molding resin covering the stator,whereinthe rotary body has a dielectric layer formed between the rotary shaft and an outer peripheral surface of the rotary body,each of the coils has coil ends protruding, from the stator core, on both sides in the shaft center direction, anda metal member is provided on an outer peripheral side of the coil ends and on at least a part facing the coil ends, over a circumferential direction.2. The molded motor according to claim 1 , wherein the metal member is located on an outer peripheral surface of the molding resin and on at least the part facing ...

ELECTROMAGNETIC ASSEMBLY OF POLYPHASE STRUCTURE

The present invention relates to an electromagnetic assembly of polyphase structure, said assembly including: a yoke comprising an electromagnetic body; a plurality of spaced-apart blocks that protrude with respect to one of the carrier faces of the yoke and that are arranged, consecutively, along the periphery of the carrier face of the yoke; and at least one winding that is associated with the blocks, wherein there is only one yoke, the plurality of blocks is arranged in at least two groups of blocks (A, B, C) in which two consecutive blocks of a given group of blocks (A, B, C) are spaced apart by an inter-block distance (E), and each group of blocks (A, B, C) is separated from the adjacent group of blocks (A, B, C) by an inter-group distance (D) that is different from the inter-block distance (E). 2. The polyphase structure electromagnetic assembly as claimed in claim 1 , wherein the body of the field frame is annular claim 1 , or cylindrical in one or two annular parts claim 1 , or cylinders butted together claim 1 , or discoidal claim 1 , or parallelepipedal.3. The polyphase structure electromagnetic assembly as claimed in claim 1 , wherein the assembly comprises several phases so that each phase correspondseither to each of the groups of studs (A, B, C), the groups being considered consecutively, wherein a distinct winding is associated with each group,{'b': 1', '2', '1', '2', '1', '2, 'or to the combination of at least two distant groups of studs (A, A; B, B; C, C) associated with at least the one same winding distinct from the winding of the other groups.'}4. The polyphase structure electromagnetic assembly as claimed in claim 1 , wherein the intergroup distances (D) are identical over the entire field frame.6. The polyphase structure electromagnetic assembly as claimed in claim 3 , wherein the number of subgroups of studs is preferably an even number and/or the number of groups corresponding to the number of phases is preferably an odd number.7. The ...

DISTRIBUTED ELECTROMAGNETIC APPARATUS

The present invention discloses a distributed electromagnetic apparatus, and more specifically a distributed electromagnetic apparatus that reduces increase of magnetic stress and reduces loss of kinetic energy, and is made up of an induction coil assembly and a magnet assembly, in which the induction coil assembly includes a magnetic conductor having two ends projecting outward to form at least two equally spaced conjugate teeth. The magnet assembly is structured to have at least one magnetic member arranged at each of two ends of the coil such that the magnetic members are arranged in pair as being opposite to each other with opposite polarities facing each other. The center of the magnetic member corresponds to an axis of the coil and centers of the magnetic members that are located at two opposite sides being each set at a location between centers of two adjacent conjugate teeth of the magnetic conductor. As such, the magnetic member generates magnetic stress with respect to the conjugate teeth on two sides thereof to form inclined forces in opposite directions so that horizontal force components on two sides are opposite in directions and cancel each other and vertical force components on two sides are reduced to achieve the purpose of driving with a minute force and also to reduce increase of magnetic stress to thereby effectively reduce loss of kinetic energy and further increase energy conversion rate thereof. 1. A distributed electromagnetic apparatus , which comprises an induction coil assembly that is defined as a stator or a rotor and a magnet assembly that is defined as a rotor or a stator , characterized in that:the induction coil assembly comprises a magnetic conductor and a coil is wound around an outer circumference of the magnetic conductor, a direction of extension of winding turns of the coil on the magnetic conductor being perpendicular to a moving direction of the rotor, two ends of the magnetic conductor being made projecting outward to form ...

Electric motor

An electric motor, especially for a fluid-handling system, comprises an external stator and an internal rotor mounted to rotate around an axis. The said external stator comprises a multiplicity of ferromagnetic pole pieces disposed around the axis and having winding cores extending substantially radially, an injection-molded plastic structure having a bushing and, molded thereon, winding supports enveloping the winding cores, as well as stator windings received on the winding supports. The bushing comprises a sleeve having a closed inner face extending radially inside the pole pieces and an end piece that closes the sleeve in the end region. The rotor is disposed inside the sleeve and mounted in a bearing disposed in the end piece.

VARIABLE RELUCTANCE STEP MOTOR HAVING ENHANCED HOLDING TORQUE

A variable reluctance stepper motor comprises a stator and a rotor that is rotatable relative to the stator. The stator comprises an annular outer yoke with a set of circumferentially spaced stator poles at equal angular intervals around the yoke extending radially inward from first portions of the yoke toward the rotor. Phase windings are individually coiled around each of the respective stator poles. Multiple slots are formed in an outer perimeter edge of the yoke at second portions thereof circumferentially situated between the first portions. A permanent magnet is embedded within each slot with circumferentially directed magnetic orientation of the respective permanent magnets. The remote placement of the magnets ensure that detent torque is kept to a minimum, while also increasing holding and dynamic torque levels. 1. A variable reluctance stepper motor , comprising:a stator comprising an annular outer yoke with a set of circumferentially spaced stator poles extending radially inward from first portions of the outer yoke toward the rotor, and having a set of energizable conductive phase windings around each of the stator poles, wherein second portions of the annular outer yoke at locations circumferentially between the first portions have slots formed in an outer perimeter edge of the yoke with a permanent magnet embedded within each slot such that a magnetic orientation of the respective permanent magnets are circumferentially directed toward the first portions of the annular outer yoke from which the stator poles project, the number of slots and embedded magnets within the slots being equal to the number of stator Doles, adjacent permanent magnets around the yoke circumference have alternating opposed magnetic N-S polarization directions; anda rotor rotatable relative to the stator, the rotor composed of soft magnetic material and having a set of circumferentially evenly spaced rotor poles extending radially outward toward the stator.2. (canceled)3. The ...

Magnetically Isolated Phase Interior Permanent Magnet Electrical Rotating Machine

A rotor for a machine has a plurality of rotor segments, each rotor segment forming at least one rotor pole and having a plurality of permanent magnets interior to the rotor and at least one saturatable bridge section for each permanent magnet in the rotor segment, each saturatable bridge section comprising a protrusion between air regions separating a north pole and a south pole of the permanent magnet to cause a portion of magnetic flux from the permanent magnet to traverse the saturatable bridge and cause a majority of the permanent magnet flux through an air gap of a rotor-stator interface between the rotor and a stator of the machine and through a stator pole.

ROTOR CONFIGURATION FOR SWITCHED RELUCTANCE MOTOR WITH MINIMIZED TORQUE RIPPLE

A hybrid switched reluctance motor is provided that reduces torque ripple. A novel rotor design includes flux barriers. The flux barriers are positioned and shaped to create implicit saliency and reluctance torque for the motor. A gradual change in the motor reluctance results which avoids rapid increases in flux density. The rotor also increases efficiency by reducing acoustical and vibrational responses and associated energy loses. 1. A hybrid switched reluctance motor comprising:a stator, having a plurality of stator poles;a rotor, having a plurality of rotor poles and a plurality of interpole segments located between the plurality of rotor poles; and,wherein each interpole segment of the plurality of interpole segments further comprises a concave void radially aligned with an arcuate flux barrier.2. The hybrid switched reluctance motor of claim 1 , wherein the arcuate flux barrier comprises an inner arcuate flux barrier and an outer arcuate flux barrier.3. The hybrid switched reluctance motor of wherein the inner arcuate flux barrier further comprises a first inner arcuate surface and a first outer arcuate surface claim 2 , wherein the outer arcuate flux barrier further comprises a second inner arcuate surface and a second outer arcuate surface and wherein the concave void is bounded by an exterior arcuate surface.5. The hybrid switched reluctance motor of wherein: [{'sub': '1', 'θ=0.38-1.18 radians'}, {'sub': '1', 'C=9.1975'}], 'the inner barrier arcuate surface has a first set of parameter values [{'sub': '2', 'θ=0.37-1.2 radians'}, {'sub': '2', 'C=8.6794'}], 'the inner barrier outer arcuate surface has a second set of parameter values [{'sub': '3', 'θ=0.32-1.25 radians'}, {'sub': '3', 'C=6.5448'}], 'the outer barrier inner accurate surface has a third set of parameter values [{'sub': '4', 'θ=0.29-1.28 radians'}, {'sub': '4', 'C=5.9532'}], 'the outer barrier outer surface has a fourth set of parameter values [{'sub': '5', 'θ=0.28-1.3 radians'}, {'sub': '5', 'C ...

Series Wound Direct-current Motor Driving Device and Equipment

The invention provides a series wound DC motor driving device and electrical equipment. The series wound DC motor driving device provided by the invention comprises a series wound DC motor, a DC power supply and a chopper, wherein the chopper comprises m chopping units; control signals comprise m unit control signals formed according to preset phase stagger rules and corresponding to the m chopping units separately, and each unit control signal comprises w switch control signals corresponding to w switch control ends in the corresponding chopping units; m pairs of power output terminals are formed at m first power output ends and m second power output ends of the chopping units correspondingly, and m pairs of external terminals of the series wound DC motor are connected with m pairs of power output terminals correspondingly one by one; m is a positive integer not smaller than 2, and w is 1, 2 or 4. 1. A series wound DC motor driving device , characterized in that it comprises:a series wound DC motor with a rated voltage;a DC power supply with a constant voltage corresponding to the rated voltage; anda chopper used for converting the constant voltage into a variable voltage and providing the variable voltage to the series wound DC motor based on the control signals,wherein the chopper comprises m chopping units;each chopping unit comprises first power output ends and second power output ends and w switch control ends;the control signals comprise m unit control signals formed according to preset phase stagger rules and corresponding to the m chopping units separately;each unit control signal comprises w switch control signals corresponding to the w switch control ends in the corresponding chopping units;the w switch control ends are used for receiving the w switch control signals correspondingly;m pairs of power output terminals are formed at the m first power output ends and m second power output ends of the chopping units correspondingly;the series wound DC motor ...

BRUSHLESS MOTOR SYSTEM FOR POWER TOOLS

A brushless DC motor includes a stator, a rotor, and motor terminals mounted on the stator. Each motor terminal includes a planar portion extending circumferentially from the end insulator, a wire-receiving member extending from a first end of the planar portion and folded over an outer surface of the planar portion away from the center axis of the stator at an angle of less than 90 degrees, and a tab portion extending from a second end of the planar portion parallel to the center axis of the stator. A circuit board is disposed adjacent the motor including power switches mounted thereon for energizing the stator windings. Slots are formed in the circuit board to align with and securely receive the tab portions of the motor terminals, thus electrically connecting the motor terminals to the power switches. 1. A power tool including a brushless DC (BLDC) motor and a circuit board disposed within a tool housing , the motor comprising:a rotor;a stator including a stator core, a plurality of stator teeth projecting radially from the stator core, a plurality of stator windings wound respectively around the plurality of stator teeth, and an end insulator disposed at a longitudinal and of the stator core to insulate the plurality of stator windings from an axial end of the plurality of stator teeth; anda plurality of motor terminals mounted on the end insulator, each motor terminal including a planar portion extending circumferentially from the end insulator substantially parallel to a longitudinal center axis of the stator, a wire-receiving member extending from a first end of the planar portion and folded over an outer surface of the planar portion away from the center axis of the stator at an angle of less than 90 degrees, and a tab portion extending from a second end of the planar portion parallel to the center axis of the stator,wherein the circuit board is disposed adjacent the motor along a plane substantially perpendicular to the center axis of the stator, the ...

Method for modifying stator tooth top arc of brushless dc motor

The present invention provides a method for modifying a stator tooth top arc of brushless DC motor, including: detecting motor parameters; determining an angle θ between initial slot axis and eccentric slot axis; determining a first arc by taking the rotating center of rotor as the center, and taking a first radius R i1 as the radius, where, the first arc intersects with eccentric slot axis at a first intersection point; determining a second arc by taking the first intersection point as the center, and taking a second radius R as the radius, wherein, the second arc intersects with eccentric slot axis at a second intersection point; determining a third arc of the first intersection point by taking the second intersection point as the center, and taking a radius of R as the radius, and modifying the stator tooth top arc according to the third arc to form a modified stator tooth top arc.

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 ...

Transverse Magnetic Flux Rotating Electrical Machine and Vehicle

According to an embodiment, a rotating electrical machine includes a rotor and a stator. The rotor includes a first coil, first magnetic poles and second magnetic poles. The stator includes a second coil, third magnetic poles and fourth magnetic poles. One of a first magnetic pole and a second magnetic pole opposite to the first magnetic pole is formed such that a leading end of the one of the first magnetic pole and the second magnetic pole lies opposite a central portion of an opposite surface of the stator. One of a third magnetic pole and a fourth magnetic pole opposite to the third magnetic pole is formed such that a leading end of the one of the third magnetic pole and the fourth magnetic pole lies opposite a central portion of an opposite surface of the rotor. 1. A transverse magnetic flux rotating electrical machine comprising:a rotor being rotatable about a rotating shaft and comprising a first coil wound in a direction of rotation and a first ferromagnetic substance provided around the first coil; anda stator provided opposite the rotor and comprising a second coil wound in the direction of rotation and a second ferromagnetic substance provided around the second coil,wherein the first ferromagnetic substance comprises a first annular portion, a plurality of first magnetic poles extending from an end of the first annular portion toward the stator, and a plurality of second magnetic poles extending from another end of the first annular portion toward the stator, and one of a first magnetic pole and a second magnetic pole opposite to the first magnetic pole is formed such that a leading end of the one of the first magnetic pole and the second magnetic pole lies opposite a central portion of an opposite surface of the stator which faces an opposite surface of the rotor, andthe second ferromagnetic substance comprises a second annular portion, a plurality of third magnetic poles extending from an end of the second annular portion toward the rotor, and a ...

Electric Compressor

Electric compressor has electric motor housed in casing the motor including stator having yoke portion and plural tooth portions , and rotor disposed radially inside stator Protrusion protrudes at plural circumferential positions of inner periphery of casing which has protruding end surface contacting an outer periphery of yoke portion with width larger than tooth portion . Contact tooth back portion contacts protruding end surface out of plural tooth back portions each disposed behind tooth portion as part of the outer periphery of yoke portion , is formed in a region except both edge portions of protruding end surface in a circumferential direction within a circumferential angle range θ in which the protruding end surface is located. 1. An electric compressor which is driven by an electric motor and compresses refrigerant , and in which the electric motor is housed in a cylindrical casing , the motor including a stator having an annular yoke portion and a tooth portion formed protruding at a plurality of positions spaced apart in a circumferential direction of an inner periphery of the yoke portion , and a rotor disposed radially inside the stator , the electric compressor comprisinga protrusion formed protruding at a plurality of positions spaced apart in a circumferential direction of an inner periphery of the casing, which has a protruding end surface that comes into contact with an outer periphery of the yoke portion and has a larger width than the tooth portion and which is used as a shrink-fit position with the yoke portion,wherein a contact tooth back portion, which comes into contact with the protruding end surface, out of a plurality of tooth back portions each disposed behind the tooth portion to constitute a part of the outer periphery of the yoke portion, is formed in a region except both edge portions of the protruding end surface in a circumferential direction within a circumferential angle range in which the protruding end surface is located.2. The ...

Grouped tooth electric motor

An electric motor may comprise a rotor and a stator comprising rotor and stator teeth, respectively. A non-uniform angular spacing or grouping of rotor teeth may facilitate desired rotational speeds of the rotor.

METHOD OF MANUFACTURING STATOR CORE, METHOD OF INSPECTING STATOR CORE, STATOR CORE, AND MOTOR

A method of manufacturing a stator core, the stator core that includes core pieces arranged in a circumferential direction about a central axis that extends in an up-down direction, the core pieces formed by stacking plate members, the plate members each including a core back portion extending in the circumferential direction, a tooth portion extending from the core back portion towards a first side in a radial direction, and a groove portion recessed from a surface on a second side of the core back portion in the radial direction towards the first side in the radial direction, the method of manufacturing the stator core including stamping out an individual piece including the core back portion and the tooth portion stamped out from an electromagnetic steel sheet, and forming the groove portion formed by punching a portion of the electromagnetic steel sheet. 1: A method of manufacturing a stator core that includes a plurality of core pieces arranged in a circumferential direction about a central axis , serving as a center , that extends in an up-down direction , the plurality of core pieces formed by stacking a plurality of plate members , the plate members each including a core back portion that extends in the circumferential direction , a tooth portion that extends from the core back portion towards a first side in a radial direction , and a groove portion that is recessed from a surface on a second side of the core back portion in the radial direction towards the first side in the radial direction , the method of manufacturing the stator core comprising:stamping out an individual piece, in which the individual piece including the core back portion and the tooth portion is stamped out from an electromagnetic steel sheet; andforming the groove portion, in which the groove portion is formed by punching a portion of the electromagnetic steel sheet.2: The method of manufacturing the stator core according to claim 1 , wherein at least a portion of the groove portion ...

Rotating electrical machine and producing method of rotating electrical machine

A rotating electrical machine includes a plurality of core pieces forming a stator core. Each of the core pieces includes contact surfaces on one side end and another side end in a peripheral direction, a tapered protrusion on the contact surface of the one side end, the protrusion including first inclined surfaces outside and inside, and a recess on the contact surface of the other side end, the recess including second inclined surfaces contacting the first inclined surfaces outside and inside to receive the protrusion of adjacent core piece. A cross-sectional shape of the protrusion is a shape such that, inside a circle centered on a first end portion with a distance being a radius between a second end portion located on an opposite side of the first end portion and the first end portion, at least a part of the first inclined surfaces contact the second inclined surfaces.

STATOR FOR AN AXIAL FLUX MACHINE WITH A STATOR RING COMPOSED OF MODULES

This invention relates to a stator for an axial flux electromagnetic machine, with the stator forming a ring () having two substantially circular faces () connected by a thickness comprising windings () regularly distributed in the ring (). Each winding () is carried by a unit portion () having a core () around which the winding () is wound. The unit portions () are arranged concentrically edge-to-edge with respect to one another and have securing means () with a support member () which is part or not of a casing housing the ring () carried either by axial and lateral faces of each unit portion () edge-to-edge or by at least one upper or lower face of with each unit portion being part of a substantially circular face. 1111a,b. A Stator intended for an axial flux electromagnetic machine , with the stator forming a ring () having two substantially circular opposite faces () ,{'b': 4', '1', '1', '4', '5', '3', '4', '1, 'i': a,', 'b, 'with the stator being comprised of several unit portions () defining the two substantially circular opposite faces (), each unit portion () having a core () around which is wound the winding (), the unit portions () forming at least partially the ring () being arranged concentrically with respect to one another, characterised in that{'b': 4', '1', '1, 'i': a,', 'b, 'the unit portions () continuously define the two substantially circular opposite faces () by being arranged concentrically edge to edge with respect to one another and'}{'b': 12', '12', '14', '6', '4, 'i': 'a,', 'have securing means (, ) with a support member (), carried by axial and lateral faces of each unit portion () edge to edge with an adjacent unit portion.'}241. The stator of claim 1 , wherein each unit portion () has an assembly of cores placed against one another radially to the ring ().36. The stator of claim 1 , wherein the support member () is an integral part of the casing or is an added part secured to the casing.45413134114411114444414aaabbaa,b. The stator of ...

STATOR OF BRUSHLESS MOTOR, BRUSHLESS MOTOR, AND METHOD OF MANUFACTURING STATOR OF BRUSHLESS MOTOR

A stator of a brushless motor includes a stator core and a plurality of coils. The stator core includes a base portion having an annular plate shape and a plurality of teeth protruding from one surface of the base portion in an axial direction and disposed in a circumferential direction. The plurality of coils is respectively wound by concentrated winding along peripheral surfaces of the plurality of teeth. The base portion includes an inner circumferential edge that is recessed radially outward from an inner end of each of the plurality of teeth or the base portion includes an outer circumferential edge that is recessed radially inward from an outer end of each of the plurality of teeth. 1. A stator of a brushless motor , the stator comprising:a stator core including a base portion having an annular plate shape and a plurality of teeth protruding from one surface of the base portion in an axial direction and disposed in a circumferential direction; anda plurality of coils respectively wound by concentrated winding along peripheral surfaces of the plurality of teeth,wherein the base portion includes an inner circumferential edge that is recessed radially outward from an inner end of each of the plurality of teeth or the base portion includes an outer circumferential edge that is recessed radially inward from an outer end of each of the plurality of teeth.2. The stator of a brushless motor according to claim 1 , whereinin a mode in which the inner circumferential edge of the base portion is recessed radially outward from the inner ends of the teeth, the outer circumferential edge of the base portion extends radially outward from the outer ends of the teeth, orin a mode in which the outer circumferential edge of the base portion is recessed radially inward from the outer ends of the teeth, the inner circumferential edge of the base portion extends radially inward from the inner ends of the teeth.3. The stator of a brushless motor according to claim 2 , whereinan ...

Rotary Electric Machine

Provided is a rotary electric machine in which lengths of routing portions of coil terminals are made uniform and a coil terminal portion is downsized. A rotary electric machine includes a rotor and a stator, the stator including teeth each wound with a coil, in which the coil consists of a first coil set and a second coil set, each of the first coil set and the second coil set is continuously wound around the two teeth, and includes a first coil terminal, and a second coil terminal to which a routing portion is formed, the first coil terminal of each of the first coil set and the second coil set is directly connected to the second coil terminal of another of the first coil set and the second coil set, the first coil terminal and the second coil terminal of each of the first coil set and the second coil set are arranged on an identical coil end, and the second coil terminal of each of the first coil set and the second coil set is arranged not to cross any other coil terminal in an axial direction. 1. A rotary electric machine comprisinga rotor and a stator,the stator including teeth each wound with a coil, whereinthe coil consists of a first coil set and a second coil set,each of the first coil set and the second coil set is continuously wound around the two teeth, and includes a first coil terminal, and a second coil terminal to which a routing portion is formed,the first coil terminal of each of the first coil set and the second coil set is directly connected to the second coil terminal of another of the first coil set and the second coil set,the first coil terminal and the second coil terminal of each of the first coil set and the second coil set are arranged on an identical coil end, andthe second coil terminal of each of the first coil set and the second coil set is arranged not to cross any other coil terminal in an axial direction.2. The rotary electric machine according to claim 1 , whereina number of magnetic poles of the rotor is 4n or 8n, and a number of ...