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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 20692. Отображено 100.
27-07-2017 дата публикации

Гибридный силовой агрегат

Номер: RU0000172854U1

Полезная модель относится к области машиностроения и может быть использована в качестве силового агрегата как стационарных, так и транспортных машин, в частности автомобилей с гибридной силовой установкой, имеющих двигатель внутреннего сгорания, асинхронный малошумный двигатель и систему управления ими, включающую преобразователи, и может быть использована в различных областях техники, например, в качестве силовой установки в таких транспортных средствах, как скутера, мотоциклы, квадроциклы, снегоходы и катера.Гибридный силовой агрегат содержит двигатель внутреннего сгорания и электродвигатель, механически связанные друг с другом и с колесами, при этом электродвигатель состоит из ротора, интегрированного или жестко посаженного на выходной вал двигателя внутреннего сгорания, статора, жестко закрепленного внутри ротора, системы управления асинхронным двигателем, образуемой статором и ротором, интегрированным с двигателем внутреннего сгорания, где статор и ротор имеют обмотки, собранные одна в звезду, другая в треугольник, большего, чем у стандартного двигателя с одной обмоткой, числа фаз и сложения магнитных полей этих двух обмоток, которые приводят к тому, что такой асинхронный двигатель характеризуется более «гладкой» и близкой к синусоиде кривой М.Д.С. Использование полезной модели позволяет создать силовой агрегат на основе двигателя внутреннего сгорания и асинхронного малошумного электродвигателя с системой управления, обеспечивающего высокий КПД и оптимальные режимы работы во всех режимах движения транспортного средства, а также снизить массогабаритные показатели и механические потери отбора энергии для зарядки накопителя энергии. Ц 1 172854 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) (11) до ад КО К. И (50) МПК ВбОК 6/00 (2007.10) НО2К 17/12 (2006.01) НО2К 3004 (2006.01) НО2К 3/28 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (21)(22) Заявка: 2016126622, 01.07.2016 (24) Дата начала отсчета срока действия патента: 01.07. ...

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31-07-2018 дата публикации

Синхронный электрический двигатель-генератор

Номер: RU0000181979U1

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, ...

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01-10-2019 дата публикации

Одноимённо-полюсная индукторная машина

Номер: RU0000192774U1

Решение относится к области электрических машин и может быть использовано в индукторных двигателях и генераторах с одноименно-полюсным потоком возбуждения, замыкающимся в аксиально-радиальном направлении через внешнезамкнутый магнитопровод.Целью устройства является упрощение конструкции и снижение расхода обмоточной меди.Поставленная цель в одноименно-полюсной индукторной машине, содержащей пакет статора с многофазной обмоткой якоря из 2mp равномерно распределенных одинаковых катушек, где m - число фаз, p - число пар полюсов, расположенных на явно выраженных полюсных выступах пакета, по одной катушке на каждом полюсном выступе, зубчатый ротор и внешнезамкнутый магнитопровод, предназначенный для замыкания потока возбуждения в аксиально-радиальном направлении, состоящий из корпуса статора, гладких форромагнитных цилиндров на статоре и на роторе, расположенных по обе стороны пакета статора, и воздушного зазора между ними достигается тем, что катушки обмотки соединены в две параллельные m-фазные звезды, снабженные выводами нулевых точек, с согласным включением катушек в фазах каждой звезды при p≥2, с подключением к нулевой точке первой звезды начал катушек, а к нулевой точке второй звезды - концов катушек, причем первая фаза первой звезды образована катушками с номерами 2N-1+2mK, отсчитываемыми вдоль окружности пакета статора, начиная от катушки, произвольно принятой за первую, где N - номер фазы, К=0, 1, … , (p-1), а фазы второй звезды образованы катушками с четными номерами. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 192 774 U1 (51) МПК H02K 3/28 (2006.01) H02K 19/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК H02K 3/28 (2019.05); H02K 19/06 (2019.05) (21)(22) Заявка: 2019108036, 20.03.2019 (24) Дата начала отсчета срока действия патента: 01.10.2019 Приоритет(ы): (22) Дата подачи заявки: 20.03.2019 (45) Опубликовано: 01.10.2019 Бюл. № 28 1 9 2 7 7 4 R U (54) Одноимённо-полюсная индукторная машина (57) ...

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17-01-2020 дата публикации

Бесщеточный генератор

Номер: RU0000195231U1

Полезная модель относится к электротехнике и представляет собой электрическую машину, предназначенную для генерации и питания нагрузки постоянным током.Из уровня техники известны различные конструкции электрических машин, в том числе использующих постоянные магниты для возбуждения ЭДС в своих выходных обмотках для питания нагрузки постоянным током. Использование постоянных магнитов в качестве замены обмоткам полюсов обеспечивает улучшение массы и габаритов электрической машины в целом. Единственным принципиальным недостатком известных из уровня техники решений является возбуждение переменного напряжения в выходных обмотках генератора, и наличие механического скользящего контакта в виде коллектора или колец для его преобразования в постоянный ток на выходе генератора. Это ведет к снижению надежности конструкции генератора из-за износа места контакта, а также и ограничивает область применения всех подобного рода решений по коммутируемому току. В случае применения щеток возникает искрение и загрязнение угольной пылью.В предлагаемом решении описан генератор с постоянным магнитом, обладающий преимуществами возбуждения без механических щеток, и при этом обеспечивающий питание нагрузки пульсирующим постоянным током. Работа основана на прохождении магнитного потока постоянного магнита в перпендикулярном к оси вращения ротора генератора направлении, причем магнитный поток полюсов ротора проходит в продольной оси генератора, вдоль оси вращения. Статор генератора может быть изготовлен из пластиков или немагнитной стали, что позволяет снизить его массу и себестоимость. Использование числа полюсов ротора, на один больше половины количества зубцов статора, позволяет достигнуть смещения фаз в катушках статора.Достигнутым техническим результатом предлагаемого здесь решения является повышение качества выходного напряжения генератора, а именно - увеличение числа пульсаций и снижение их амплитуды. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 195 231 U1 (51) МПК H02K 21/20 (2006.01) H02K 3/ ...

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02-02-2012 дата публикации

Apparatus for cooling an electric machine

Номер: US20120025638A1
Принадлежит: General Electric Co

Provided is an apparatus, for example, for use with a rotating electric machine, that includes a housing. The housing can include a housing main portion and a housing end portion. The housing main portion can be configured to be disposed proximal to a body portion of a stator section of an electric machine. The housing main portion can define a main fluid channel that is configured to conduct fluid therethrough. The housing end portion can receive fluid from said main fluid channel and direct fluid into contact with a winding end portion of a conductive winding of the stator section.

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16-02-2012 дата публикации

Linear motor with reduced force ripple

Номер: US20120038228A1
Автор: Rolf Vollmer
Принадлежит: SIEMENS AG

To further reduce force ripple of a linear motor, a primary part has a plurality of windings sequentially arranged in an axial direction and subdivided in the axial direction into groups having an identical number of windings. The sequence of the association of the windings with the phases of a multi-phase system is not repeated at least in a group of windings within the primary part as long as the winding sense of the corresponding windings in the group is maintained.

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12-04-2012 дата публикации

Electric rotating machine

Номер: US20120086288A1
Принадлежит: Denso Corp

An electric rotating machine includes a stator, a rotor, and a plurality of magnetic shields. The stator includes a stator core and a stator coil wound on the stator core. The stator core has a plurality of stator teeth arranged in the circumferential direction of the stator core. The rotor includes a rotor core that has a plurality of magnetic salient poles formed therein. The magnetic salient poles face the stator teeth through an air gap formed therebetween. Each of the magnetic shields is provided, either on the forward side of a corresponding one of the stator teeth or on the backward side of a corresponding one of the magnetic salient poles with respect to the rotational direction of the rotor, to create a magnetic flux which suppresses generation of a negative electromagnetic force that hinders rotation of the rotor.

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12-04-2012 дата публикации

Laminated Sheet Winding

Номер: US20120086296A1
Автор: Mark A. Cleveland
Принадлежит: Boeing Co

Apparatuses, systems, and methods provide for high density laminated sheet windings in axial and radial flux configurations. According to embodiments described herein, motor components such as a rotor or stator include a number of stacked sheets of conductive material. The stacked sheets are electrically connected in series to create a winding. Each motor component includes a number of conductors spaced apart with apertures between. The motor components are stacked and configured with the conductors of one rotor or stator positioned within the apertures of the other rotor or stator to create a thin, high density conductor. A magnemotive force is created when the magnetic flux is positioned over the conductors.

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10-05-2012 дата публикации

Stator and cage coil

Номер: US20120112595A1
Принадлежит: Toyota Motor Corp

A cage coil includes a first combined conductor constituted of six first conductors each being formed in a continuous zig-zag pattern, the first conductors being overlapped sequentially with displacement, and a second combined conductor including six second conductors each being formed in a continuous zig-zag pattern, the second conductors being overlapped sequentially with displacement, and the second combined conductor being placed with displacement of one pitch from the first combined conductor, the first and second combined conductors are overlapped into a conductor assembly, the conductor assembly being wound by five turns. A stator includes the above cage coil.

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17-05-2012 дата публикации

Rotor for a turbo generator, and turbo generator comprising a rotor

Номер: US20120119603A1
Принадлежит: SIEMENS AG

A rotor for a turbo generator is provided. The rotor includes a cylindrical rotor shaft that expands in the center to form a rotor body, grooves introduced into the cylindrical surface of the rotor body, an excitation winding accommodated in the grooves, a feeding duct through which a cooling gas flows, and cooling ducts which penetrate the excitation winding substantially in the radial direction and connect the feeding duct to respective outlets in the cylindrical surface of the rotor body A distribution duct extending in the longitudinal direction of the shaft is arranged in the area of the central longitudinal axis. The feeding ducts are connected to the distribution duct via junction ducts. An admission duct for feeding the cooling gas is provided for each distribution duct.

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17-05-2012 дата публикации

Method for Producing a Stator Winding of an Electric Machine, in particular an Alternator

Номер: US20120119605A1
Принадлежит: ROBERT BOSCH GMBH

A method is disclosed for producing a stator winding of an electric machine, in particular an alternator, the stator winding comprising at least one phase winding and the phase winding having a plurality of coils, the plurality of coils being wound in one direction, a given number of turns being wound and the coil having a plurality of coil sides, two coil sides of the coil transitioning integrally into coil connectors. The turns of the coil are subsequently moved relative to each other in such a way that the coil sides transitioning into coil connectors are outermost coil sides of the coil.

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17-05-2012 дата публикации

Motor stator

Номер: US20120119607A1
Принадлежит: YEN SUN TECHNOLOGY CORP

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.

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07-06-2012 дата публикации

Electric operating machine

Номер: US20120139456A1
Принадлежит: HITACHI KOKI CO LTD

When a main switch ( 12 ) is turned ON, an electric operating machine ( 1 ) is put in the standby mode. With a trigger ( 13 ) being pulled in the standby mode, a power supply circuit ( 16 ) applies a voltage to a drive part ( 30 ). The power supply circuit ( 16 ) adjusts the voltage applied to the drive part ( 30 ) for a voltage corresponding to the pulling rate of the trigger ( 13 ). When the current running toward the drive part ( 30 ) exceeds the rated value of the drive part ( 30 ), the power supply circuit ( 16 ) automatically stops power supply to the drive part ( 30 ). On the other hand, when the output voltage of a battery ( 50 ) drops and the battery ( 50 ) is put in an overdischarge state, power supply to the drive part ( 30 ) is automatically stopped. When it is detected that the battery ( 50 ) undergoes an abnormal event, power supply to the drive part ( 30 ) is automatically stopped.

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21-06-2012 дата публикации

Polyphasic multi-coil electric device

Номер: US20120153757A1
Автор: Jonathan Ritchey
Принадлежит: Exro Technologies Inc

A polyphasic multi-coil generator includes a driveshaft, at least first and second rotors rigidly mounted on the driveshaft so as to simultaneously synchronously rotate with rotation of the driveshaft, and at least one stator sandwiched between the first and second rotors. The stator has an aperture through which the driveshaft is rotatably journalled. A stator array on the stator has an equally circumferentially spaced-apart array of electrically conductive coils mounted to the stator in a first angular orientation about the driveshaft. The rotors and the stator lie in substantially parallel planes. The first and second rotors have, respectively, first and second rotor arrays.

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05-07-2012 дата публикации

Arrangement for Producing a Star Connection, in Particular of the Stator Windings of an Electromotor, and Electromotor

Номер: US20120169164A1
Автор: Peter Zeller
Принадлежит: SEW Eurodrive GmbH and Co KG

An arrangement for producing a star connection in the case of an electromotor, in particular three-phase motor; first crimp sleeves being slid onto stator winding-wire end regions and joined thereto; the first crimp sleeves being joined to the second crimp sleeves by a respective welded connection; the second crimp sleeves being slid onto an electrical line and joined thereto.

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16-08-2012 дата публикации

Self-contained & propelled magnetic alternator & wheel DirectDrive vertical units. aka:MAW-DirectDrives vertical model

Номер: US20120205997A1
Автор: Dana Allen Hansen
Принадлежит: Individual

MAW-DirectDrives Vertical Models are direct drive propulsion and electrical generating units for transportation vehicles utilizing wheels for motion, which connect onto the inside of wheels actuating rotation and braking electromagnetically while simultaneously utilizing the rotation to generate electricity to feed back into the supply for reducing the vehicle's requirement for operation. Two pancake style direct drive permanent magnets stators are mounted on sturdy metal mounting backs functioning as the unit's stationary outside faces and outer portion of the unit's wheel hub. The vehicle is supported from their rear face. The stators face one another with a two-sided permanent magnets drive-rotor disc between them accomplishing two functions simultaneously. The drive-rotor is connected to the Integrated Drive-plate Assembly's spindle perpendicular. The spindle with its threaded end traverses through each wheel hubs' bearings and unites the unit together with a lock nut. An attached exterior cylindrical housing keeps the unit rigid and parallel.

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13-09-2012 дата публикации

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

Номер: US20120228982A1
Автор: Mohammad Kimiabeigi
Принадлежит: SIEMENS AG

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.

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27-09-2012 дата публикации

Motor stator having channels used for cooling and method of providing the channels

Номер: US20120242176A1
Автор: Debabrata Pal
Принадлежит: Hamilton Sundstrand Corp

An example stator assembly includes a stator for establishing a core side of a channel. A plurality of stator windings are secured relative to portions of the stator core. The plurality of stator windings establish a winding side of the channel. At least a portion of the channel is configured to communicate a cooling fluid from a first axial end of the stator core to an opposing axial end of the stator core.

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01-11-2012 дата публикации

Disk motor and electric power tool

Номер: US20120274175A1
Принадлежит: HITACHI KOKI CO LTD

A disk motor and an electric power tool in which positioning of a coil disk with respect to a commutator disk can be carried out while reliably ensuring insulating properties are provided. A disk motor having: an output shaft part; a coil disk that is provided with a coil pattern and provided coaxially to the output shaft part; a commutator disk that is provided with a commutator pattern and provided coaxially to the output shaft part; and a positioning pin that is electrically insulated from the coil disk and the commutator disk, is engaged with the output shaft part and the coil disk, and carries out positioning of the coil disk with respect to the output shaft part, and an electric power tool having the disk motor are provided.

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15-11-2012 дата публикации

Rotor of an Electric Generator for Generating Electricity in Power Plants

Номер: US20120286598A1
Автор: Johann Schubert
Принадлежит: SENSOPLAN GMBH

The invention relates to a rotor of an electric generator for generating electricity in power plants, comprising support elements ( 9 ) having spacers ( 10 ) between the conductors ( 6 ) in the area of the winding overhang ( 7 ). The spacers ( 10 ) are distributed over the surface of the support elements ( 9 ) as island-shaped structures so that the conductors can be cooled uniformly.

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06-12-2012 дата публикации

Stator of rotating electrical machine and rotating electrical machine

Номер: US20120306309A1
Принадлежит: Individual

A stator of rotating electrical machine includes a stator core and stator coils. The stator coils have n number (where n≧6) unit coils, a first coil group and a second coil group. The unit coils of the first coil group include a first unit coil located nearest the first power supply terminal. The unit coils of the first coil group include a second unit coil. The unit coils of the first coil group include a third unit coil located third nearest the first power supply terminal and adjacent to the second unit coil of the second coil group. The unit coils of the second coil group include a third unit coil located third nearest the second power supply terminal and adjacent to the second unit coil of the first coil group.

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10-01-2013 дата публикации

Cooling System and Method for an Electronic Machine

Номер: US20130009493A1
Автор: James J. Ramey
Принадлежит: REMY TECHNOLOGIES LLC

Embodiments of the invention provide an electric machine module including an electric machine which can include a stator assembly. The stator assembly can include stator end turns. Some embodiments can provide a housing at least partially enclosing the electric machine and the housing can at least partially define a machine cavity. Further, at least one baffle can be coupled to the housing at a region near the stator end turns, so that the at least one baffle surrounds a portion of a perimeter of the stator end turns.

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21-03-2013 дата публикации

Electric Rotating Machine

Номер: US20130069473A1
Принадлежит: Hitachi, Ltd.

An alternator comprising a rotor having plural magnetic poles in the circumferential direction; and a stator whose teeth are disposed opposite to the periphery of the rotor, with an air gap interposed between the rotor and the stator, wherein the coil conductors are wound on the stator so that two stator magnetic poles may be formed by two coil units of a phase wound around stator teeth within the range of 360 electrical degrees subtended by the magnetic poles of the rotor; each of the two coil units forming the stator magnetic poles spans an electrical angle less than 180 electrical degrees; the two coil turns forming the two stator magnetic poles are laid out so that they may not overlap each other; and the coil conductors are so wound that the adjacent stator magnetic poles exhibit opposite magnetic polarities. 1 a stator having teeth that are disposed opposite to the periphery of the rotor, wherein', 'the stator includes a first three-phase coil system and a second three-phase coil system, the first three-phase coil system being formed by a U-phase coil, a V-phase coil and a W-phase coil, and a second three-phase coil system being formed by another U-phase coil, another V-phase coil and another W-phase coil and connected in parallel to the first three-phase coil system,', 'the first three-phase coil system and the second three-phase coil system are disposed at the stator so that a difference of an electrical angle between the first three-phase coil system and the second three-phase coil system is within a range of 20 to 40 degrees,', 'the stator includes two stator magnetic poles of the same phase, each of which is formed by a tooth, a first coil turn, and a second coil turn coupled in series with the first coil turn and having a polarity opposite to a polity of the first coil turn, within a range of 360 electrical degrees subtended by the magnetic poles of the rotor,', 'each of the first coil turn and the second coil turn is wound so as to span an electrical ...

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28-03-2013 дата публикации

WINDING CONFIGURATION OF DOUBLY SALIENT PERMANENT MAGNET ELECTRIC MACHINE

Номер: US20130076159A1

The present invention relates to a doubly salient permanent magnet electric machine that has a winding structure in which series-connected windings are included in the phase windings of a mover, and that has a stator implemented as an iron core having a plurality of permanent magnets and a plurality of stator salient poles neighboring the permanent magnets, thus reducing the number of permanent magnets by half. An electric machine is configured such that a mover moves while facing a stator and includes an N (a number of power phases) multiple number of teeth and phase windings wound around the teeth, and one or more pairs of phase windings of the mover mutually having a phase difference of 180° are connected in series, and the stator includes permanent magnets in depressions between individual stator salient poles of an iron core in which the stator salient poles are formed. 1. An electric machine , wherein:a mover moves while facing a stator and comprises an N (a number of power phases) multiple number of teeth and phase windings wound around the teeth, and one or more pairs of phase windings of the mover electrically have a phase difference (β) of 180°,the mover is configured such that a plurality of phase windings are included in a phase winding group for each of N phases, and one or more pairs of windings for a corresponding phase and a reverse phase (/phase) wound around respective teeth to electrically have a phase difference (β) of 180°, among phase windings included in each phase winding group, are connected to have opposite current directions, andadjacent phase winding groups are arranged such that a separation distance (α) therebetween electrically has a difference corresponding to a phase angle of 180/N°.2. The electric machine of claim 1 , wherein the stator comprises permanent magnets in depressions between individual stator salient poles of an iron core in which the stator salient poles are formed.3. The electric machine of claim 2 , wherein the stator ...

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28-03-2013 дата публикации

5-PHASE ALTERNATING CURRENT INDUCTION MOTOR AND INVERTER SYSTEM

Номер: US20130076187A1
Автор: Flaster Adam Daniel
Принадлежит:

An induction motor having five phases is disclosed. Adding two or more phases to existing 1, 2, and 3 phase designs can boost power, torque, and speed. This document describes a method of controlling a motor and an inverter through load, power, torque, or speed demands. Cooling applications for the system and various electronic filtering methods are also disclosed. 1a stator having a first phase, a second phase, a third phase, a fourth phase, and a fifth phase, each phase producing a north or a south pole;a rotor configured to rotate in accordance with one of the phases of the stator; anda five-phase inverter configured to control the stator and rotor, the five-phase inverter having a plurality of upper and lower leg pairs, each leg pair configured to manage reverse power flow.. A motor comprising: This application claims the benefit under 35 U.S.C. §119(e) of the following provisional application, all of which is incorporated herein by reference in its entirety: U.S. Provisional Patent Application Ser. No. 61/535,907, entitled “5-Phase Alternating Current Induction Motor and Inverter System,” filed on Sep. 16, 2011 (Attorney Docket No. 42036-503P01 US).The AC Induction Motors exists in 1, 2, and 3 phase designs based on motor applications. These applications can either be for manufacturing equipment, appliances, aerospace, marine, automotive, or other transportations uses based on power, torque, and speed requirements.However, adding two more phases to the motor can boost power, torque, and speed. This is achieved by boosting the natural frequency of the system by increasing active switching devices. Increasing the number of switches allows for decreased magnetic saturation, increased heat capacity, further power transfer through less materials, and increased power and torque band at higher RPM's.This document presents 5-Phase technology from power supply source conditioning, motor inverter design, motor inverter control, motor design, and motor control method. ...

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28-03-2013 дата публикации

Winding for an ac machine

Номер: US20130076190A1
Принадлежит: ABB Oy

A stator winding is disclosed for a multiple-phase alternating current machine with several parallel winding groups (U1, V1, W1; U2, V2, W2; U3, V3, W3), each of which can be supplied with separate power sources. Locations of the winding groups can be cyclically shifted when moving from one pole to another. The number of parallel winding groups (U1, V1, W1; U2, V2 ,W2 ;U3 ,V3 , W3) can be higher than two, and the number of poles of the alternating current machine can be an even figure that is a multiple of the number of winding groups.

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11-04-2013 дата публикации

Method and structure of winding of stator for rotation detector, and electric motor comprising rotation detector

Номер: US20130088127A1
Принадлежит: Panasonic Corp

The N 1 ( s ) turns of an output winding is divided by a split ratio α into N 1 a ( s ) turns of an output winding ( 1 a ) and N 1 b ( s ) turns of an output winding ( 1 b ). The output winding ( 1 a ) is continuously wound around all slots as the undermost layer. Output winding 2 , which is different in phase by 90 degrees from the output winding ( 1 a ), is continuously wound around all the slots over the output winding ( 1 a ). An output winding ( 1 b ) is continuously wound around all the slots over output winding 2 . This equalizes the contribution of the output winding and output winding 2 to the flux linkage, thereby achieving high angle detection accuracy.

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25-04-2013 дата публикации

DOUBLE-STATOR MOTOR

Номер: US20130099618A1
Автор: KUSASE Shin
Принадлежит: Denso Corporation

A double-stator motor of an example embodiment includes: an annular rotor connected to a rotary shaft and integrally rotates with the rotary shaft, an inner stator arranged radially inward of the rotor, and an outer stator arranged radially outward of the rotor. The rotor includes a plurality of segments annularly arranged in the circumferential direction, spaced apart from each other by a predetermined distance, and a plurality of permanent magnets each interposed between circumferentially adjacent segments, the permanent magnets being alternately magnetized in the circumferentially opposite direction. The rotor, the inner stator and the outer stator have the same number of poles. The inner and outer stator windings of the inner and outer stators, respectively, are connected so that their phases are reversed to each other. Thus, the magnetic fields generated by the magnetomotive forces of the inner and outer stators are applied to specific segments in parallel. 1. A double-stator motor comprising:an annular rotor connected to a rotary shaft and integrally rotates with the rotary shaft;an inner stator arranged radially inward of the rotor;an outer stator arranged radially outward of the rotor;a plurality of segments annularly arranged in the circumferential direction in the rotor, being spaced apart from each other by a predetermined distance; anda plurality of permanent magnets each of which is interposed between circumferentially adjacent segments, and the permanent magnets are alternately magnetized in the circumferentially opposite direction;whereinthe inner stator includes an inner stator core having a plurality of slots which are open in an outer periphery thereof, and a three-phase inner stator winding wound about the inner stator core through the plurality of slots;the outer stator includes an outer stator core having a plurality of slots which are open in an inner periphery thereof, and a three-phase outer stator winding wound about the outer stator core ...

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09-05-2013 дата публикации

Rotating Electrical Machine and Vehicle Equipped with Rotating Electrical Machine

Номер: US20130113330A1
Принадлежит: HITACHI AUTOMOTIVE SYSTEMS, LTD

A rotating electrical machine includes: a stator core; a stator winding; and a rotor. Cross conductors connect slot conductors to run astride slots with the slot pitch N+1 at coil ends on one side and run astride slots with the slot pitch N−1 at coil ends on another side, with N representing a number of slots per pole; the stator winding includes slot conductor groups each having a plurality of slot conductors; the plurality of slot conductors in each slot conductor group are inserted at a predetermined number Ns of successive slots so that the slot conductors in the slot conductor group take successive slot positions and successive layer positions; and the number Ns is set so that Ns=NSPP+NL when NSPP represents a number of slots per phase per pole and a number of layers is expressed as 2×NL. 1. A rotating electrical machine , comprising:a stator core having a plurality of slots formed therein;a stator winding assuming a plurality of phases, which includes a plurality of round windings wound with a wave winding pattern, each having slot conductors each inserted at one of the slots at the stator core to form one of a plurality of layers and cross conductors each connecting same-side ends of slot conductors inserted at different slots so as to form a coil end; anda rotor rotatably supported with an air gap so as to be allowed to rotate relative to the stator core, wherein:the cross conductors connect the slot conductors so as to run astride slots with the slot pitch Np set to N+1 at coil ends on one side and run astride slots with the slot pitch Np set to N−1 at coil ends on another side, with N representing a number of slots per pole;the stator winding includes a plurality of slot conductor groups each having a plurality of slot conductors corresponding to a single phase;the plurality of slot conductors in each slot conductor group are inserted at a predetermined number Ns of successive slots forming a continuous range along a circumference of the stator core so ...

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16-05-2013 дата публикации

COIL WINDING METHODS AND STRUCTURES FOR A SLOTLESS STATOR IN A MOTOR

Номер: US20130119813A1
Принадлежит: ResMed Motor Technologies Inc

A method for making a poly-phase field winding for a slotless stator includes: forming the first coil group by winding an insulated wire for each coil winding in a first direction around a mandrel; axially shifting along the mandrel the insulated wire from a trailing edge of each coil winding a distance substantially equal to one half of twice the number of coil groups multiplied by the number of coil windings minus one times the width of one of the completed windings to position the wires at a leading edge of each of coil winding in the second coil group; forming the second coil group by winding the insulated wire for each coil winding in the first direction; removing the mandrel from the wound coil groups; collapsing the wound coil groups to a single layer web, and wrapping the single layer web into a cylinder to form the field winding. 128-. (canceled)29. A method for making a poly-phase field winding for a slotless stator including a plurality of coil windings arranged in at least a first coil group and a second coil group , said method comprising:forming the first coil group by winding an insulated wire for each coil winding in a first direction around a mandrel such that each turn of the wire is adjacent a next turn of the wire, wherein each coil winding in the first coil group has substantially the same coil width when completed and a separation between adjacent coil windings in the first coil group is a distance substantially equal to the width of one of the completed windings;after forming the first coil group, axially shifting along the mandrel the insulated wire from a trailing edge of each coil winding a distance substantially equal to one half of twice the number of coil groups multiplied by the number of coil windings minus one times the width of one of the completed windings to position the wires at a leading edge of each of coil winding in the second coil group;forming the second coil group by winding the insulated wire for each coil winding in the ...

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06-06-2013 дата публикации

Rotating Electrical Machine and Manufacturing Method Thereof

Номер: US20130140934A1
Принадлежит: HITACHI LTD

A manufacturing method for manufacturing a rotating electrical machine equipped with a stator that includes a continuously wound coil unit achieved by continuously winding concentrated winding-type coils via cross wires, with coil wire having a rectangular section. The manufacturing method includes: mounting core segments, at which the coil wire is yet to be wound, at a core segment forward/backward moving mechanism; winding the coil wire with a winding track secured by driving the core segments forward/backward via the core segment forward/backward moving mechanism; setting faces of the coil wire in alignment by holding orientations of winding start wire and winding end wire at the concentrated winding-type coils at approximately 90° via open/close type chucks each equipped with a chuck forward/backward moving mechanism, with the open/close type chucks mounted at the core segment forward/backward moving mechanism; and forming the continuously wound coil unit by driving the core segments forward/backward via the core segment forward/backward moving mechanism, driving the open/close type chucks forward/backward and opening/closing the open/close type chucks.

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13-06-2013 дата публикации

Electric machine - over-moulding construction

Номер: US20130147291A1
Принадлежит: Oxford Yasa Motors Ltd

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.

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13-06-2013 дата публикации

COOLING PLATE FOR ELECTRIC MOTOR WITH IMPROVED HEAT RADIATION CAPABILITY

Номер: US20130147292A1
Принадлежит: FANUC Corporation

In accordance with the present invention, there is provided a cooling plate including a plurality of plate members stacked on one another between an electric motor and a coupled body to which the electric motor is coupled, wherein at least one of the plurality of plate members has a penetration groove extending through the plate member in a thickness direction and extending in the plate member in a plane direction orthogonal to the thickness direction, the penetration groove defining a coolant supply channel for supplying a coolant. 1. A cooling plate comprising a plurality of plate members stacked on one another between an electric motor and a coupled body to which the electric motor is coupled , wherein at least one of the plurality of plate members has a penetration groove extending through the plate member in a thickness direction and extending in the plate member in a plane direction orthogonal to the thickness direction , the penetration groove defining a coolant supply channel for supplying a coolant.2. The cooling plate according to claim 1 , wherein at least two of the plurality of plate members have the penetration groove claim 1 , the penetration grooves being in communication with one another and forming the coolant supply channel.3. The cooling plate according to claim 1 , further comprising seal means for sealing the coolant supply channel.4. The cooling plate according to claim 1 , wherein one of the plurality of plate members situated opposite to the electric motor has a surface adapted to an opposite surface shape of the electric motor claim 1 , and whereinone of the plurality of plate members situated opposite to the coupled body has a surface adapted to an opposite surface shape of the coupled body.5. The cooling plate according to claim 1 , further comprising a receiving portion for receiving fixing means for fixing the electric motor claim 1 , the cooling plate and the coupled body to one another. 1. Field of the InventionThe present invention ...

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20-06-2013 дата публикации

Wave winding coil for rotary electrical machine

Номер: US20130154428A1
Принадлежит: Aisin Seiki Co Ltd

A wave winding coil for a rotary electrical machine includes a coil conductor including coil side portions and coil end portions, the coil conductor being wound to include a wave winding configuration, a relational expression expressing a total number of the coil side portions included in a phase coil is expressed by a mathematical expression 1 m×k=n×q×2p, and m refers to the number of the phase unit coils that are parallelly connected to each other, k refers to the number of the coil side portions that are serially connected to each other, q refers to the number of serially-connected-conductors per magnetic pole, the serially-connected-conductor belongs to one of the kinds of the coil side portions, 2p refers to the number of the magnetic pole, m refers to a common divisor between q×2p and n.

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20-06-2013 дата публикации

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

Номер: US20130154429A1
Принадлежит: SIEMENS AG

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.

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04-07-2013 дата публикации

ELECTRIC MOTOR

Номер: US20130169085A1
Автор: TAEMA Yoshihiro
Принадлежит: FUJITSU GENERAL LIMITED

An electric motor is provided with a rotator and a stator disposed on an outer diameter side of the rotator. The stator includes a cylindrical stator iron core provided with a plurality of teeth radially projecting from an inner circumferential side of an annular yoke toward a center, insulators made of an insulation material disposed on both ends of the stator iron core in an axial direction, and lead wire wound around the teeth via the insulators . First grooves to disposed on an inner circumferential side of the insulator and second grooves to disposed on an inner circumferential side of the stator iron core are formed to communicate with each other. A part of a connection line connecting the windings with each other is embedded in the first grooves and the second grooves. 1. An electric motor comprising:a rotator; anda stator disposed on an outer diameter side of the rotator, a cylindrical stator iron core provided with a plurality of teeth radially projecting from an inner circumferential side of an annular yoke toward a center;', 'insulators made of an insulation material disposed on both ends of the stator iron core in an axial direction; and', 'windings wound around the teeth via the insulators,', 'wherein the insulator includes a first groove disposed on an inner circumferential side thereof along an axial direction,', 'wherein the stator iron core includes a second groove disposed on an inner circumferential side thereof along the axial direction, and', 'wherein the first groove and the second groove are disposed so as to communicate with each other in the axial direction, and the first groove and the second groove which communicate with each other embed therein a part of a connection line connecting the windings mutually., 'wherein the stator includes2. The electric motor according to claim 1 , wherein the electric motor is a polyphase alternating current electric motor claim 1 ,wherein the windings of a same phase wound around the teeth and the ...

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04-07-2013 дата публикации

Brushless motor

Номер: US20130169086A1
Принадлежит: Johnson Electric SA

A brushless motor includes a stator core having 3 M teeth, with M being an integer not less than 2, a rotor received in the stator core, 3 M coils respectively wound around the 3 M teeth, and a printed circuit board (PCB) fixed to the stator core and electrically connected to the 3 M coils such that the 3 M coils are connected in delta and correspond to three phase windings. Each phase includes at least two coils connected in parallel.

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04-07-2013 дата публикации

WINDING STRUCTURE, ROTATING ELECTRIC MACHINE, AND ROTATING ELECTRIC MACHINE MANUFACTURING METHOD

Номер: US20130169102A1
Автор: Fukushige Takashi
Принадлежит:

A winding structure for a rotating electric machine includes: a core including slots; and a coil including a first winding and a second winding combined by intersecting the first winding and the second winding with each other. Each straight portion of the coil is inserted into any one of two slots arranged at a given interval so that the coil is assembled to the core. 118-. (canceled)19. A winding structure for a rotating electric machine , comprising:a core including slots; anda coil including a first winding and a second winding combined by intersecting the first winding and the second winding with each other, wherein:each straight portion of the coil is inserted into any one of two slots arranged at a given interval so that the coil is assembled to the core; a first crank-shape portion bending in a rotation axis direction of the rotating electric machine; and', 'a second crank-shape portion bending in a radial direction of the rotating electric machine; and, 'in the coil, coil end portions of the first winding and the second winding each comprisewhen viewing from the rotation axis direction, the first crank-shape portion of the first winding intersects with the second crank-shape portion of the second winding, and the second crank-shape portion of the first winding intersects with the first crank-shape portion of the second winding.20. The winding structure according to claim 19 , further comprising another coil claim 19 , wherein:the first winding of the coil overlaps, at the coil end portion, a second winding of the another coil; andthe second winding of the coil overlaps, at the coil end portion, a first winding of the another coil.21. A rotating electric machine claim 19 , comprising the winding structure according to .22. The rotating electric machine according to claim 21 , wherein a winding pitch of winding the coil on the slots of the core is two.23. The rotating electric machine according to claim 21 , wherein a number of intersections of the first ...

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18-07-2013 дата публикации

Fault-tolerant electrical machine

Номер: US20130181553A1
Принадлежит: Individual

An electrical machine with a rotor or the stator including a plurality of discrete field modules, and the other one of the rotor and the stator including a plurality of armature coils connected to different power converters. Each field module includes one or more field coils which can be activated independent of the field coils of the neighbouring field modules. When at least one of the field coils is inactivated, e.g. because of a defect, each of the power converters is allowing less power to pass through when an armature coil connected to it is moving over an inactivated field coil, and more power to pass through when the armature coil connected to it is moving over an activated field coil.

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18-07-2013 дата публикации

Stator for electric rotating machine

Номер: US20130181555A1
Принадлежит: Denso Corp

A stator coil includes first to fourth in-slot portions and first and second turn portions. Both the first and third in-slot portions are received in one slot of a stator core, while both the second and fourth in-slot portions are received in another slot. The first and second turn portions both protrude from an axial end face of the stator core and respectively connect the pair of the first and second in-slot portions and the pair of the third and fourth in-slot portions. The second turn portion is located inside the first turn portion. When viewed along an axial direction of the stator core, the first and second turn portions extend so as to cross each other with a reference line C interposed therebetween; the reference line C is defined to extend along a circumferential direction of the stator core through an intersection between the first and second turn portions.

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01-08-2013 дата публикации

ELECTRIC MOTOR, IN PARTICULAR ACTUATOR MOTOR OR DRIVE MOTOR IN MOTOR VEHICLES

Номер: US20130193785A1
Принадлежит: ROBERT BOSCH GMBH

An electric motor has a stator and a coil which is arranged within the stator housing and whose winding can be energized via a connection line system. A cooling plate is arranged outside the interior of the stator, and on the outer side of said cooling plate a carrier plate for motor electronics is arranged, to which carrier plate the connection line system is connected. The connection line system is led from the inside to the outside through a recess in the cooling plate and is electrically connected to the carrier plate. 1. Electric motor , in particular actuator motor or drive motor in motor vehicles , with a stator and a rotating rotor , with a coil that is stored within the stator housing , whose winding has to be supplied with current via a connection line system , and with a cooling plate that is arranged outside the stator interior on whose outside a carrier plate is arranged for the motor electronic , to which the connection line system is connected , wherein the electric connection line system is led through a recess in the cooling plate from the inside to the outside and electrically connected with the carrier plate.2. The electric motor according to wherein the cooling plate is arranged at a front side of the motor.3. The electric motor according to wherein the cooling plate creates a housing part.4. The electric motor according to claim 1 , wherein the connection line system comprises a bus bar claim 1 , which is connected within the stator housing with a phase power connection claim 1 , which is electrically connected with the winding of the coil claim 1 , and in that the bus bar is led through the recess in the cooling plate.5. The electric motor according to wherein the connection line system is held at a carrier part that is mounted to the housing.6. The electric motor according to wherein the carrier part is construed as electrically isolating plastic carrier.7. The electric motor according to wherein the carrier part is also a carrier of the ...

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08-08-2013 дата публикации

STATOR, BRUSHLESS MOTOR, STATOR MANUFACTURING METHOD

Номер: US20130200742A1
Принадлежит: ASMO CO., LTD.

A stator includes: plural core configuration sections each including plural yoke configuration sections that configure a ring shaped yoke and are segmented in a yoke circumferential direction and plural teeth sections that project from the respective yoke configuration sections along a yoke radial direction, with the plural yoke configuration sections and the plural teeth sections integrated together; plural coil wires that are wound onto the respective teeth sections to configure plural winding portions; and plural insulators that each include plural insulator portions that are integrated to each of the respective core configuration sections and insulate between the teeth sections and the winding portions, and a connection portion that connects together the plural insulator portions. 1. A stator comprising:a plurality of core configuration sections each comprising a plurality of yoke configuration sections that configure a ring shaped yoke and are segmented in a yoke circumferential direction and a plurality of teeth sections that project from the respective yoke configuration sections along a radial direction of the yoke, with the plurality of yoke configuration sections and the plurality of teeth sections integrated together;a plurality of coil wires that are wound onto the respective teeth sections to configure a plurality of winding portions; anda plurality of insulators that each includes a plurality of insulator portions that are integrated to each of the respective core configuration sections and insulate between the teeth sections and the winding portions, and a connection portion that connects together the plurality of insulator portions.2. The stator of claim 1 , wherein the plurality of coil wires configure a plurality of phases.3. The stator of wherein:each of the coil wires includes a plurality of crossing wires that connect together the plurality of winding portions and are laid out at the connection portion;the plurality of connection portions are ...

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15-08-2013 дата публикации

STATOR ASSEMBLY FOR A BRUSHLESS MOTOR IN A POWER TOOL

Номер: US20130207491A1
Принадлежит: Black & Deckder Inc.

A power tool includes a brushless DC motor having a stator and a rotor pivotably arranged inside the stator, the stator including a first winding, a second winding, and a third winding. Each winding is arranged at at least two opposite poles connected together. The stator windings may be connected in a delta configuration by electrically coupling adjacent terminals of the first and second windings, second and third windings, and third and first windings at three connection points. A baffle may be provided in parallel and adjacent to the stator, the baffle including at least one conductive routing or stamping to facilitate electrically coupling the first, second, and third windings in at least one of a delta or a wye configuration. 1. A power tool comprising:a housing;a brushless DC motor housed inside the housing, the motor comprising a stator and a rotor pivotably arranged inside the stator, the stator comprising a first winding, a second winding, and a third winding, each said winding arranged at at least two opposite poles connected together around the stator, wherein the at least three stator windings are connected in a delta configuration by electrically coupling adjacent terminals of the first and second windings, second and third windings, and third and first windings at three connection points.2. The power tool of claim 1 , wherein each of the first claim 1 , second claim 1 , and third windings are associated with a first and second terminals on the stator claim 1 , the first terminal of each winding being located adjacent to the second terminal of another winding.3. The power tool of claim 1 , further comprising a baffle arranged adjacent the stator.4. The power tool of claim 3 , wherein the baffle comprises a plurality of metal routings or stampings to facilitate the electric couplings of the adjacent terminals of the first and second windings claim 3 , second and third windings claim 3 , and third and first windings at the three connection points.5. The ...

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29-08-2013 дата публикации

ARMATURE WINDING OF ROTATING ELECTRICAL MACHINE

Номер: US20130221792A1
Принадлежит: KABUSHIKI KAISHA TOSHIBA

According to one embodiment, there is provided a 3-phase 4-pole 2-layer armature winding of a rotating electrical machine. A winding of each phase of the armature winding forms a series coil. Each series coil includes upper coil pieces and lower coil pieces which are connected each other at a connection side coil end and a counter-connection side coil end, the upper coil pieces and lower coil pieces being placed in 42 slots provided in an armature core. At least one coil piece of the upper and lower coil pieces, provided in at least one of an innermost position and an outermost position from the center of a phase belt of each phase, is replaced with a coil piece of an adjacent phase. 1. A 3-phase 4-pole 2-layer armature winding of a rotating electrical machine , a winding of each phase of the armature winding forming a series coil , each series coil comprising:upper coil pieces and lower coil pieces which are connected each other at a connection side coil end and a counter-connection side coil end, the upper coil pieces and lower coil pieces being placed in 42 slots provided in an armature core,at least one coil piece of the upper and lower coil pieces, provided in at least one of an innermost position and an outermost position from the center of a phase belt of each phase, being replaced with a coil piece of an adjacent phase.2. The armature winding of the rotating electrical machine according to claim 1 , wherein in the upper coil pieces or the lower coil pieces of each phase claim 1 , a coil piece in an innermost position from the center of a phase belt of each phase is replaced with a coil piece of an adjacent phase claim 1 , in a 4-coil phase belt claim 1 , and a coil piece in an outermost position from the center of a phase belt of each phase is replaced with a coil piece of an adjacent phase claim 1 , in a 3-coil phase belt.3. The armature winding of the rotating electrical machine according to claim 2 , wherein a coil pitch is set to one of 10 and 11.4. The ...

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29-08-2013 дата публикации

STATOR OF ROTARY ELECTRIC MACHINE

Номер: US20130221793A1
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

A stator of a rotary electric machine includes a stator core and polyphase coils. The stator core has a plurality of slots. The polyphase coils are provided in the slots. Each phase of the polyphase coils has a plurality of coils formed for each pole and connected in parallel. When winding in which a coil pitch is equal to number of slots divided by number of poles is termed full-pitch winding, when winding in which a coil pitch is larger than the coil pitch of the full-pitch winding is termed long-pitch winding, and when winding in which a coil pitch is smaller than the coil pitch of the full-pitch winding is termed short-pitch winding, at least two of the coils of each phase are formed on the stator core by wave winding to alternate between the long-pitch winding and the short-pitch winding along a circumferential direction of the stator core. 1. A stator of a rotary electric machine with a plurality of poles , comprising:a stator core having teeth that define therebetween a plurality of slots; andpolyphase coils provided in the slots, each phase of the polyphase coils having a plurality of coils that are formed for each pole and connected in parallel, wherein when winding in which a coil pitch is equal to number of the slots divided by number of the poles is termed full-pitch winding, when winding in which a coil pitch is larger than the coil pitch of the full-pitch winding is termed long-pitch winding, and when winding in which a coil pitch is smaller than the coil pitch of the full-pitch winding is termed short-pitch winding, at least two of the coils of each phase are formed on the stator core by wave winding so as to alternate between the long-pitch winding and the short-pitch winding along a circumferential direction of the stator core.2. The stator of the rotary electric machine according to claim 1 , wherein each of the coils connected in parallel is provided by a seamless conducting wire and has a pair of lead wires extending from portions that form the ...

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29-08-2013 дата публикации

Amortisseur assembly and apparatus to maintain radial venting hole alignment

Номер: US20130221797A1
Принадлежит: AGT Services Inc

An amortisseur assembly comprises an end winding amortisseur. The end winding amortisseur comprises a body, at least one finger element, and a stop block. The body comprises a first edge. The finger element extends from the first edge of the body, and comprises a first surface. The stop block can attached to the first surface. The amortisseur assembly can further comprise a slot amortisseur so that the stop block abuts an end of the slot amortisseur. The amortisseur assembly can be assembled on a radial-flow cooled rotor. A method of forming an amortisseur assembly for a rotor comprises providing one or more slot amortisseurs and one or more of the end winding amortisseurs. The slot amortisseurs can be provided by shortening existing slot amortisseurs. The slot springs can replace existing slot springs, and the one or more slot springs can be longer than the existing slot springs.

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05-09-2013 дата публикации

DISK DRIVE DEVICE

Номер: US20130229093A1

A disk drive device includes: a base member; a hub on which a recording disk is placed; a bearing unit arranged on the base member for rotatably supporting the hub; and a spindle drive unit for rotationally driving the hub, wherein the spindle drive unit includes a stator core having salient poles, a coil wound around each of the salient poles, and a magnet having a plurality of magnetic poles arranged in a circumferential direction opposed to the salient poles, the hub includes an outer cylindrical portion formed of a magnetic material and engaged with an inner periphery of the recording disk, and an inner cylindrical portion fixing an outer periphery of the magnet, the number of magnetic poles is an even number in a range of 10 to 16, and the number of salient poles is a multiple of 3 in a range of 12 to 24. 1. A disk drive device comprising:a base member;a hub on which a recording disk is to be placed;a bearing unit arranged on the base member for rotatably supporting the hub; anda spindle drive unit for rotationally driving the hub, a stator core including a plurality of salient poles;', 'a three-phase coil wound around each of the plurality of salient poles; and', 'a magnet including a plurality of magnetic poles in a circumferential direction so as to be opposed to the plurality of salient poles, respectively,, 'the spindle drive unit comprisingthe hub comprising an outer cylindrical portion to be engaged with an inner periphery of the recording disk, and an inner cylindrical portion upholding the magnet,the bearing unit being encircled by the recording disk in a radial direction, and including a portion at least partially overlapping the recording disk in an axial direction,the number of magnetic poles being an even number in a range of 10 to 16, andthe number of salient poles being a multiple of 3 in a range of 12 to 24.2. The disk drive device according to claim 1 , whereinthe number of magnetic poles is 10 andthe number of salient poles is 15.3. The disk ...

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12-09-2013 дата публикации

ELECTRIC MOTOR AND CENTRALIZED POWER DISTRIBUTION MEMBER

Номер: US20130234549A1
Принадлежит:

An electric motor includes a stator including multiple phase windings wound around a plurality of teeth arranged in a circular pattern, and an annular bus ring arranged concentrically with the stator to supply drive current to the windings. The bus ring includes a metal conductor and a lead-out wire inserting portion for inserting a lead-out wire of the winding therethrough, the lead-out wire inserting portion being formed by bending the metal conductor. The lead-out wire inserting portion is crimped with the lead-out wire inserted therethrough such that the metal conductor is electrically connected to the lead-out wire. 1. An electric motor , comprising:a stator comprising multiple phase windings wound around a plurality of teeth arranged in a circular pattern; andan annular bus ring arranged concentrically with the stator to supply drive current to the windings,wherein the bus ring comprises a metal conductor and a lead-out wire inserting portion for inserting a lead-out wire of the winding therethrough, the lead-out wire inserting portion being formed by bending the metal conductor, andwherein the lead-out wire inserting portion is crimped with the lead-out wire inserted therethrough such that the metal conductor is electrically connected to the lead-out wire.2. The electric motor according to claim 1 , wherein the lead-out wire inserting portion is thermally crimped with the lead-out wire inserted therethrough such that the metal conductor and the lead-out wire are melted and joined together.3. The electric motor according to claim 2 , wherein claim 2 , when the lead-out wire inserting portion is thermally crimped claim 2 , a contact area between the lead-out wire and the metal conductor is smaller than a contact area between the metal conductor and an electrode receiving an electric current for the thermal crimping.4. The electric motor according to claim 1 , wherein the lead-out wire inserting portion has an Ω-shape and comprises a pair of bent portions and a ...

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19-09-2013 дата публикации

High torque/high efficiency winding motor

Номер: US20130241366A1
Автор: Kim Daniel Kee Young
Принадлежит:

Embodiments of the invention describe a motor comprising a rotor assembly and a stator assembly to rotatably drive the rotor assembly. Said stator assembly includes a body, a plurality of teeth extending radially from the body, and at least two winding sets, each winding set comprising coils wound on the teeth. The at least two winding sets includes a first set for driving the rotor assembly to a first variable operational range, and a second set for driving the rotor assembly to a second variable operational range different than the first. Said rotor assembly may be used in an electric motor (i.e., said rotor assembly is a flywheel), or may be used in a drive motor. 1. An apparatus comprising:a rotor assembly; anda stator assembly to rotatably drive the rotor assembly and having a body, a plurality of teeth extending radially from the body, and at least two winding sets, each winding set comprising coils wound on the teeth;wherein the at least two winding sets includes a first set for driving the rotor assembly to a first variable operational range, and a second set for driving the rotor assembly to a second variable operational range different than the first.2. The apparatus of claim 1 , wherein at least one of the winding sets comprises redundant windings.3. The apparatus of claim 1 , wherein the first set of windings of the stator assembly comprises a first number of coils wound on the teeth claim 1 , and the second set of windings of the stator assembly comprises a second number of coils claim 1 , greater than the first number claim 1 , wound on the teeth.4. The apparatus of claim 1 , wherein the first and second sets of windings of the stator assembly are wound on alternating teeth of the stator assembly.5. The apparatus of claim 1 , wherein the first and second sets of windings of the stator assembly comprise different sets of windings on each teeth of the stator assembly.6. The apparatus of claim 1 , wherein the first and second variable operational ranges ...

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26-09-2013 дата публикации

Motor

Номер: US20130249339A1
Принадлежит: Nidec Corp

A winding structure which is disposed over an armature and a commutator includes an equalizer. The equalizer includes a going portion and a return portion which are wound across one group of teeth through a slot and connected between two identical segments. In a case where an integer number is an expansion value among values which are integer multiples of a value which is acquired by dividing the total number of the slots by the total number of pole pairs, when one group of the teeth having the same total number as the expansion value is given as an element teeth group, the going portion and the return portion are wound across the element teeth group through the slots positioned at both sides of the element teeth group.

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03-10-2013 дата публикации

DRIVE APPARATUS

Номер: US20130257191A1
Принадлежит: Denso Corporation

A drive apparatus includes a motor unit and an electronic control unit. The motor unit includes a first end frame, a second end frame, a stator, a rotor and a shaft. The control unit controls driving of the shaft. An outer wall surface of the stator is exposed between the first end frame and the second end frame. The stator is thus enabled to contact outside air directly so that heat radiation characteristic of the stator is improved. 1. A drive apparatus comprising:a stator;a rotor provided radially inside the stator and rotatable relative to the stator;a shaft fixed to the rotor;a first bearing supporting one side of the shaft rotatably;a second bearing supporting an other side of the shaft rotatably;a first end frame provided at an end part of one axial side of the stator to hold the first bearing;a second end frame provided at an end part of an other axial side of the stator to hold the second bearing; andan electronic control unit provided at one axial end part of the shaft for controlling driving of the shaft,wherein the stator has an outer wall surface, which is exposed between the first end frame and the second end frame.2. The drive apparatus according to claim 1 , wherein:the first end frame includes a bottom wall extending in a radial direction of the shaft and a side wall extending in an axially inside direction of the shaft form the bottom wall, the bottom wall having a wall thickness thicker than a wall thickness of the side wall.3. The drive apparatus according to claim 1 , wherein:the electronic control unit includes an inverter circuit having plural semiconductor elements, the electronic control unit contacting the bottom wall of the first end frame in the axial direction of the shaft.4. The drive apparatus according to claim 2 , wherein:the side wall includes plural through holes arranged in a peripheral direction of the shaft and passing the side wall in the radial direction of the shaft.5. The drive apparatus according to claim 2 , wherein:the ...

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10-10-2013 дата публикации

INTERNAL COOLING OF STATOR ASSEMBLY IN AN ELECTRIC MACHINE

Номер: US20130264897A1
Автор: Bradfield Michael D.
Принадлежит:

Embodiments of the invention provide an electric machine module including an electric machine with a stator assembly. The stator assembly includes a plurality of stator laminations coupled together and a plurality of conductors positioned through axial slots of the plurality of stator laminations. The electric machine module also includes a coolant channel at least partially defined within the axial slots and a housing. The housing at least partially circumscribes the electric machine and at least partially defines a machine cavity which is in fluid communication with the coolant channel. 1. An electric machine module comprising:an electric machine including a stator assembly, the stator assembly including a plurality of stator laminations coupled together and a plurality of conductors positioned through axial slots of the plurality of stator laminations, the plurality of stator laminations including at least a first set of stator laminations and a second set of stator laminations positioned adjacent to the first set of stator laminations;a coolant channel at least partially defined within the axial slots of the plurality of stator laminations;the second set of stator laminations each including an additional notch extending radially outward from the axial slots and in fluid communication with the coolant channel;the first set of stator laminations each including an outer notch separate and radially outward from the axial slots and fluid communication with the additional notches; anda coolant jacket at least partially circumscribing the electric machine and in fluid communication with the outer notch of the first set of stator laminations.2. The electric machine module of claim 1 , wherein the plurality of stator laminations includes a third set of stator laminations positioned adjacent to and axially outward from the second set of stator laminations.3. The electric machine module of claim 1 , and further comprising a housing including a sleeve member claim 1 , ...

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10-10-2013 дата публикации

STATOR AND ROTATING ELECTRIC MACHINE EQUIPPED WITH THIS STATOR

Номер: US20130264899A1
Принадлежит:

In a stator and a rotating electric machine equipped with this stator, the insulation properties of a coil are ensured by suppressing lead wire stress generated during a stator assembly process. The stator has a stator core, a coil wound around the stator core, lead wires led out from the coil, and power lines provided between the lead wires and a connection terminal of an external circuit. The lead wires and the power lines are electrically connected with each other through an elastically deformable elastic bus bar. Even if a shift occurs in the relative position between the coil and the connection terminal during the assembly process of the stator, this configuration allows the elastic bus bar to absorb the shift and makes it possible to suppress the stress generated on the lead wires. 1. A stator comprising:a stator core;a coil wound around the stator core;a lead line extending from the coil; anda power line disposed between the lead line and a connection terminal of an external circuit, whereinthe coil is a three-phase AC coil;the lead line, the power line, and an elastically deformable elastic bus bar are provided for each phase;the lead line and the power line are electrically connected via elastic bus bar for each phase; anda module member which integrates the elastic bus bars of the respective phases using an insulating member is provided.2. (canceled)3. The stator according to claim 1 , wherein the elastic bus bar is formed by bending a plate-like conductor.4. The stator according to claim 1 , wherein the module member includes an elastically deformable terminal bus bar which connects between terminals arranged on both sides of coil ends along the radial direction.5. A rotating electric machine comprising the stator according to . The present invention relates to a stator and a rotating electric machine equipped with this stator, and more specifically to improvement of a connecting structure between a coil and terminals of a stator.A rotating electric ...

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10-10-2013 дата публикации

DC COMMUTATOR MOTOR AND AUTOMOBILE INCLUDING THE SAME

Номер: US20130264904A1
Принадлежит: Hitachi Automotive Systems, Ltd.

A DC commutator motor includes a yoke, a field magnet, and an armature. A shaft is positioned on a central axis of the armature. A plurality of commutator segments is positioned in a circumferential direction of the shaft. A plurality of armature slots is formed on an outer periphery of an armature core. An upper coil is wound the number of turns Na through two armature slots, which are located apart from each other with the predetermined number of armature slots therebetween, at their opening sides. A lower coil is connected in parallel with the upper coil and wound the number of turns Nb through the two armature slots at their bottom sides. The number of turns Na is smaller than the number of turns Nb. 1. A DC commutator motor comprising:a yoke;a field magnet positioned at an inner peripheral side of the yoke;an armature rotatably supported at an inner peripheral side of the field magnet with a gap therebetween;a shaft positioned on a central axis of the armature;a plurality of commutator segments positioned in a circumferential direction of the shaft;a plurality of armature slots positioned on an outer periphery of the armature;an upper coil wound the number of turns Na through two of the armature slots at an opening side of each of the two slots, the two of the armature slots being located apart from each other with the predetermined number of armature slots therebetween; anda lower coil connected in parallel with the upper coil, the lower coil being wound the number of turns Nb through the two of the armature slots at a bottom side of each of the two slots,wherein the number of turns Na is smaller than the number of turns Nb.2. The DC commutator motor according to claim 1 , whereinthe number of turns Na of the upper coil and the number of turns Nb of the lower coil are set such thata difference between a resistance value of the upper coil and a resistance value of the lower coil is a minimum.3. The DC commutator motor according to claim 2 , whereinthe number of ...

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17-10-2013 дата публикации

Rotary electric machine

Номер: US20130270973A1
Автор: Masayuki IKEMOTO
Принадлежит: Toyota Motor Corp

A rotary electric machine includes: a coil conductor that is fitted to a core of the rotary electric machine to form a coil; a neutral line connected to a neutral point of the coil; and a temperature sensor, on which the neutral line is wound to be in contact therewith, and that detects a temperature of the neutral line, wherein the neutral line is, in a region thereof that is in contact with the temperature sensor, equal in cross-sectional area to the coil conductor.

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31-10-2013 дата публикации

Stator of an electrical machine and an electrical machine

Номер: US20130285487A1
Принадлежит: LAPPEENRANNAN TEKNILLINEN YLIOPISTO

A stator of an electrical machine that is straightforward to assemble and for which an efficient liquid cooling can be arranged includes a stator core ( 801 ) having a plurality of stator teeth and stator slots, and a stator winding having a plurality of stator coils ( 803 ). The width of each stator coil is one stator slot pitch, and the stator teeth are shaped to allow each stator coil to be installed by pushing the stator coil to surround one of the stator teeth. The stator coils include tubular cooling channels ( 804 ) for conducting cooling liquid in the stator slots. The stator winding is designed by taking into account the aspects related to the liquid cooling, and it has been noticed that a stator winding structure which is advantageous for arranging the liquid cooling has satisfactory electrical and magnetic properties too.

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31-10-2013 дата публикации

COIL BLOCK, COIL BLOCK ASSEMBLY, AND ELECTRICAL MACHINE CONTAINING SAME

Номер: US20130285488A1
Принадлежит: GENERAL ELECTRIC COMPANY

Embodiments of the invention relate generally to electrical machines and, more particularly, to electrical machines containing a coil block assembly for cooling conductive coils. In one embodiment, the invention provides an electrical machine comprising: at least one tooth coil including: a stator tooth; and at least one conductive coil wound around the stator tooth, forming a plurality of coil turns; a coil block assembly between a first turn and a second turn of the plurality of coil turns, the coil block assembly including: at least two coil blocks, each coil block including a body and a face having at least one recess into the body, wherein the coil blocks are oriented with faces opposed, such that at least one cooling channel is formed by the at least one recess of each coil block. 1. An electrical machine comprising:at least one tooth coil including:a stator tooth; andat least one conductive coil wound around the stator tooth, forming a plurality of coil turns;a coil block assembly between a first turn and a second turn of the plurality of coil turns, the coil block assembly including:at least two coil blocks, each coil block including a body and a face having at least one recess into the body, wherein the coil blocks are oriented with faces opposed, such that at least one cooling channel is formed by the at least one recess of each coil block.2. The electrical machine of claim 1 , wherein each of the at least two coil blocks includes a face having a plurality of recesses into the body and the coil block assembly includes a plurality of cooling channels formed by the plurality of recesses.3. The electrical machine of claim 1 , wherein the plurality of recesses form a substantially sinusoidal shape along the face.4. The electrical machine of claim 1 , wherein the body of each of the at least two coil blocks includes a height claim 1 , a width substantially perpendicular to the height claim 1 , and at least one thickness substantially perpendicular to both the ...

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31-10-2013 дата публикации

COOLING SUPPORT ELEMENT FOR A STATOR SEGMENT OF AN ELECTRICAL MACHINE FOR A WIND TURBINE

Номер: US20130285489A1
Автор: Lemma Edom
Принадлежит:

A cooling support element for a stator segment of an electrical machine is provided. The cooling support element has a first and a second plate each having an upper surface and a lower surface. The upper surface of the first plate has anchoring element for anchoring a stator lamination stack attached to the cooling support element. The lower surface of the second plate has an inlet and an outlet opening. The two plates are attached to each other. The lower surface of the first plate faces the upper surface of the second plate. Separator elements are disposed between the lower surface of the first plate and the upper surface of the second plate for providing a cooling channel. A cooling fluid is guidable from the inlet opening through the cooling channel to the outlet opening for dissipating heat from the stator lamination stack. 1. A cooling support element for a stator segment of a stator of an electrical machine , comprising:a first plate having a first upper surface and a first lower surface, wherein the first upper surface comprises anchoring element for anchoring a stator lamination stack being attachable to the cooling support element;a second plate having a second upper surface and a second lower surface, wherein the second lower surface comprises an inlet opening and an outlet opening; anda plurality of separator elements disposed between the first lower surface and the second upper surface for providing a cooling channel,wherein the first plate is attached to the second plate so that the first lower surface faces the second upper surface, andwherein a cooling fluid is guided from the inlet opening through the cooling channel to the outlet opening for dissipating heat from the stator lamination stack.2. The cooling support element as claimed in claim 1 , wherein the first plate comprises sidebars being attached on two opposing edges of the first lower surface claim 1 , and wherein the sidebars are adapted for closing the cooling channel.3. The cooling ...

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31-10-2013 дата публикации

Single-Layer Coil With One Bent Endwinding and One Straight Endwinding

Номер: US20130285502A1
Автор: CLARK Paul EATON

The present invention provides an improved single-layer coil for a rotating or linear electrical machine. The coil has a first endwinding that is substantially straight to a longitudinal axis of the coil and a second endwinding that is bent relative to the longitudinal axis of the coil. The coil therefore has differently shaped endwindings with one end being ‘straight’ and the other end being ‘bent.’ 1. A single-layer coil for an electrical machine , the coil having a straight , first endwinding and a bent , second endwinding.2. A single-layer coil according to claim 1 , further comprising a pair of winding runs extending between the first and second endwindings.3. A single-layer coil according to wherein:the second endwinding includes an outer surface;the pair of winding runs are substantially parallel to each other and define a transverse plane; andwherein a line extending generally normal to the second endwinding outer surface portion extends generally perpendicular to the transverse plane4. A single-layer coil according to for use with a stator of a rotating electrical machine claim 2 , wherein the pair of winding runs are substantially parallel to each other in both the axial direction of the stator and the direction in which they extend into the stator in use.5. A stator winding for use with a stator of an electrical machine claim 2 , the stator winding comprising a plurality of single-layer coils claim 2 , each coil having:(a) a straight, first endwinding, and(b) a bent, second endwinding.6. A stator winding according to claim 5 , being a multi-tier stator winding.7. A stator winding according to claim 5 , wherein each tier includes one or more single-layer coils.8. A stator winding according to claim 5 , further comprising a first set of single-layer coils having their second endwindings at one end of the stator and bent away from an axis of the stator claim 5 , and a second set of single-layer coils having their second endwindings at an opposite end of the ...

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07-11-2013 дата публикации

ELECTRIC MOTOR AND REDUCTION MOTOR

Номер: US20130293054A1
Принадлежит: MITSUBA CORPORATION

Disclosed is an electric motor including a yoke formed in a bottomed cylindrical shape; permanent magnets arranged on an inner peripheral surface of the yoke; an armature including a rotary shaft journalled on the yoke, an armature core formed with a plurality of teeth and fixed onto the rotary shaft, an armature coil wound around the teeth of the armature core, a commutator having a plurality of segments and being fixed onto the rotary shaft, and a connecting wire connecting two segments arranged to face each other back to back around the rotary shaft, the armature being surrounded by the permanent magnets and accommodated within the yoke; and a first brush, a second brush, and a third brush coming into sliding contact with the segments of the commutator of the armature. 1. An electric motor comprising:a yoke formed in a bottomed cylindrical shape;permanent magnets being arranged on an inner peripheral surface of the yoke and generating four magnetic poles formed of alternately arranged magnetic poles;an armature including a rotary shaft journalled on the yoke, an armature core formed with a plurality of teeth and fixed onto the rotary shaft, an armature coil wound around the teeth of the armature core, a commutator having a plurality of segments formed from a conductive material and fixed onto the rotary shaft, and a connecting wire connecting two segments arranged to face each other back to back around the rotary shaft among a plurality of segments of the commutator, the armature being surrounded by the permanent magnets and accommodated within the yoke; anda first brush, a second brush, and a third brush coming into sliding contact with the segments of the commutator of the armature,wherein the number of the teeth of the armature core and the number of the segments of the commutator are the same number, and are any of fourteen, eighteen, and twenty two,wherein the teeth of the armature core are formed point-symmetrically,wherein the first brush and the second ...

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07-11-2013 дата публикации

METHOD AND DEVICE FOR OPERATING AN ELECTRIC MACHINE HAVING EXTERNAL OR HYBRID EXCITATION

Номер: US20130293182A1
Принадлежит: ROBERT BOSCH GMBH

The invention relates to an electronically commutated electric machine () comprising: a rotor (); an exciting winding () that is located at the rotor () in order to generate or alter a direct magnetic field in the rotor (); a stator () comprising a three- or multi-phase stator winding () with phases that can be controlled via phase lines (). The exciting winding () is connected to the stator winding (). 12. An electronically commutated electric machine () , comprising:{'b': '21', 'a rotor ();'}{'b': 6', '21', '21, 'an exciter winding () arranged at the rotor () in order to generate or alter a direct magnetic field in the rotor (); and'}{'b': 22', '23', '8, 'a stator () having a three-phase or polyphase stator winding () with phases which can be driven via phase lines ();'}{'b': 6', '23, 'wherein the exciter winding () is electrically connected to the stator winding ().'}22611. The electric machine () as claimed in claim 1 , wherein the exciter winding () is connected to a supply potential via an exciter winding line ().3268. The electric machine () as claimed in claim 1 , wherein the exciter winding () is connected to one of the phase lines ().42236. The electric machine () as claimed in claim 1 , wherein the stator winding () has stator coils interconnected in star connection claim 1 , wherein the exciter winding () is connected to a star point of the star connection.51. A motor system () comprising:{'b': '2', 'claim-ref': {'@idref': 'CLM-00003', 'claim 3'}, 'an electric machine () as claimed in ;'}{'b': 3', '8, 'a power stage () for providing phase voltages and/or phase currents on the phase lines ();'}{'b': 5', '8', '6', '8, 'a control unit () for driving the power stage, such that the phase line () connected to the exciter winding () has a constant phase potential and such that the remaining phase voltages are provided in such a way that in each case sinusoidal voltage profiles arise as differential voltages between the phase lines ().'}61. A motor system () ...

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14-11-2013 дата публикации

ROTATING ELECTRIC MACHINE

Номер: US20130300226A1
Принадлежит: Hitachi, Ltd.

A rotating electric machine includes a rotor, a stator, formed by stacking perforated-disk-shape stator cores, surrounding the rotor, arranged with a gap from the rotor, a first stator cooling duct to allow the cooling gas to flow from an inner side toward outer side of the stator, a second stator cooling duct to allow the cooling gas to flow from an outer side to an inner side of the stator, a plurality of support plates for supporting the stator and providing sectioning between the first and second flow paths, and a flow control part configured to suppress a flow of the cooling gas passing through the gap part where the outer end part of the stator core and the inner end part of the support plate face each other. 1. A rotating electric machine comprising:a rotor rotating on an axis;a stator, disposed apart from the rotor with a gap to surround the rotor, formed by stacking a plurality of perforated-disk-shape stator cores;a first flow path configured to allow a cooling gas to flow from an inner side of the stator to an outer side of the stator;a second flow path configured to allow the cooling gas to flow from the outer side of the stator to the inner side of the stator;a plurality of perforated-disk-shape support plates configured to support the stator and provide a partition in the axial direction between the first flow path and the second flow path; anda flow control part configured to control ventilation of the cooling gas flowing through a gap part where an outer end part of the stator core and an inner end part of the support plate face each other.2. The rotating electric machine as claimed in claim 1 ,wherein the flow control part comprises a brush-form structure including a mounting part and a contact part; andwherein the brush-form structure is provided in which the mounting part is fixed to the support plate and the contact part contacts an outer end part of the stator core.3. The rotating electric machine as claimed in claim 1 ,wherein the flow control ...

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14-11-2013 дата публикации

COMPOSITE STATOR FOR ELECTROMECHANICAL POWER CONVERSION

Номер: US20130300241A1
Принадлежит: THINGAP, LLC

A rotating electromechanical apparatus includes a cylindrical ironless stator coil comprising a plurality of wires, a magnetic rotor arranged with the stator coil, wherein the magnetic field flux associated with the rotor interacts with the stator coil wires by electromagnetic induction, a cylindrical bobbin arranged to support the wires, a strand woven on at least the outer circumference of the wire-wrapped cylindrical bobbin, and a curable potting material potting the wires, bobbin and strand to provide an ironless composite stator coil when cured. 1. A rotating electromechanical apparatus comprising:a cylindrical ironless stator coil comprising a plurality of wires;a magnetic rotor arranged with the stator coil, wherein the magnetic field flux associated with the rotor interacts with the stator coil wires by electromagnetic induction;a cylindrical bobbin arranged to support the wires;a strand woven on at least the outer circumference of the wire-wrapped cylindrical bobbin; anda curable potting material potting the wires, bobbin and strand to provide a composite stator coil when cured.2. The apparatus of claim 1 , wherein the wires include at least one of a wire bundle claim 1 , a Litz wire bundle claim 1 , an individual wire claim 1 , and a wire tape.3. The apparatus of claim 1 , wherein the bobbin is solid or porous claim 1 , and infusion of a curable material in the wire-wrapped cylindrical bobbin assembly is permissible.4. The apparatus of claim 1 , wherein end turns at the edge of the bobbin are configured within the magnetic field flux.5. The apparatus of claim 1 , wherein the apparatus is a motor driven by current supplied to the Litz wires.6. The apparatus of claim 1 , wherein the apparatus is a current generator driven by mechanical rotation of the rotor.7. The apparatus of claim 1 , wherein the wires are configured on the bobbin with a defined geometric arrangement.8. The apparatus of claim 3 , wherein the bobbin and the wires are potted with a curable ...

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14-11-2013 дата публикации

DYNAMOELECTRIC MACHINE

Номер: US20130300244A1
Автор: KASHIHARA Toshiaki
Принадлежит:

A U phase winding, an X phase winding, a V phase winding, a Y phase winding, a W phase winding, and a Z phase winding are configured by mounting conductor wires so as to alternate repeatedly between 5π/6 short-pitch windings and 7π/6 long-pitch windings, and are mounted into the stator core in that order so as to be stacked sequentially in a radial direction so as to be offset by one slot each in a first circumferential direction. 1. A dynamoelectric machine comprising:a rotor that is rotatably supported by a housing; and a stator core in which slots are formed at a ratio of two slots per phase per pole; and', 'a stator winding that is constituted by six phase windings that are mounted into wave windings in said stator core,', 'said stator being supported by said housing so as to surround said rotor,, 'a stator comprisingwherein:three phase windings among said six phase windings are given a phase difference corresponding to an electrical angle of π/3 from each other by being mounted into said stator core so as to be stacked sequentially in a radial direction so as to be offset by two slots each in a first circumferential direction to configure a first phase winding group;a remaining three phase windings of said six phase windings are given a phase difference corresponding to an electrical angle of π/3 from each other by being mounted into said stator core so as to be stacked sequentially in a radial direction on a radially outer side of said first phase winding group so as to be offset respectively by one slot in said first circumferential direction relative to each of said three phase windings that constitute said first phase winding group to configure a second phase winding group; andeach of said six phase windings is configured such that a conductor wire is mounted so as to alternate repeatedly between a 5π/6 short-pitch winding and a 7π/6 long-pitch winding.2. A dynamoelectric machine according to claim 1 , wherein each of said six phase windings is constituted ...

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21-11-2013 дата публикации

DISK MOTOR AND ELECTRIC-POWERED WORKING MACHINE

Номер: US20130307356A1
Автор: TANIMOTO Hideyuki
Принадлежит: HITACHI KOKI CO., LTD.

A disk motor includes a rotor, a stator, and an output shaft which is coaxially integrated with the rotor, a coil disk is provided in one of the rotor and the stator, a magnetic-flux generating part is provided in the other of the rotor and the stator, and the coil disk is configured by laminating a plurality of coil substrates each on which a coil pattern is printed. Among these coil substrates, in the coil substrates Aa and Af on both ends in the laminating direction having relatively good heat dissipation effect, the coils are electrically connected in series to each other, and, in the coil substrates Ab to Ae on an inner side in the laminating direction having relatively poor heat dissipation effect. at least a part of the coils is electrically connected in parallel to each other. 2. The disk motor according to claim 1 , in the second coil substrate part claim 1 , at least a part of the plurality of coil substrates is electrically connected in parallel to each other claim 1 , andin the first coil substrate part, each of the plurality of coil substrates is electrically connected in series to a coil substrate in the second coil substrate part.3. The disk motor according to claim 1 , wherein: the coil substrates in the first coil substrate part and the coil substrates in the second coil substrate part are made of the same member.4. The disk motor according to claim 1 , wherein:an electrical resistance of the coil formed on each coil substrate in the second coil substrate part is smaller than an electrical resistance of the coil formed on each coil substrate in the first coil substrate part.5. The disk motor according to claim 1 , wherein:the disk motor includes a power supply part for supplying electric power to the plurality of coil substrates, andthe magnetic-flux generating part generates magnetic flux on the plurality of coil substrates in the laminating direction.6. A disk motor including a rotor claim 1 , a stator claim 1 , and an output shaft which is ...

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21-11-2013 дата публикации

Conductor spacer clip

Номер: US20130307362A1
Автор: Bradley D. Chamberlin
Принадлежит: REMY TECHNOLOGIES LLC

An assembly of an electric machine includes a plurality of conductor segments each having a turn portion, and a plurality of clips each having a channel member and a bend member, the channel members being attached to respective ones of the conductor segments and thereby holding the respective bend members against the respective turn portions. The attached clips electrically insulate and space adjacent ones of the conductor segments. The bend members prevent adjacent ones of the conductor segments from contacting one another.

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21-11-2013 дата публикации

AXIAL-FLUX ELECTRIC MACHINE

Номер: US20130307366A1
Принадлежит: CORIOLIS POWER SYSTEMS LTD.

A stator for an axial-flux electric machine is provided with at least one flat winding formed thereon. The flat winding is circumferentially distributed over the flat stator. The flat winding comprises a plurality of petal-like sections which is substantially radial relative to an axis of the rotor. 137-. (canceled)38. A stator for an axial-flux electric machine; wherein said stator provided with at least one flat winding formed thereon;said flat winding is circumferentially distributed over said flat stator; said flat winding comprises a plurality of petal-like sections being substantially radial relative to an axis of said rotor.39. The stator according to claim 38 , provided with a plurality of said flat layered windings circumferentially distributed over said flat stator.40. The stator according to claim 38 , wherein said stator is of a core type.41. The stator according to claim 38 , wherein said stator is coreless.42. The stator according to claim 38 , wherein flat winding is formed by a process selected from the group consisting of a printed circuit board process claim 38 , photochemical etching claim 38 , chemical etching claim 38 , mechanical tooling claim 38 , multi or single-layer wire winding claim 38 , casting and any combination thereof.43. The stator according to claim 38 , wherein said stator comprises a multi-winding structure; each winding is formed within an individual layer of said flat stator.44. The stator according to claim 43 , configured for polyphase supply; each winding placed on said individual layer is connectable to a corresponding phase.45. The stator according to claim 43 , comprising plurality of said windings which are connectable to one phase.46. The stator according to claim 43 , wherein said windings are connectable to said phase in series.47. The stator according to claim 43 , wherein said windings are connectable to said phase in parallel.48. The stator according to claim 43 , adapted for variation of output torque constant K ...

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21-11-2013 дата публикации

STATOR WINDING COMPRISING MULTIPLE PHASE WINDINGS

Номер: US20130307369A1
Принадлежит: ROBERT BOSCH GMBH

Stator winding () comprising multiple phase windings (). A phase winding has at least two partial phase windings () which include coils () and coil connectors () that run parallel. 118120120120120120123126126a,ba,b. A stator winding () comprising multiple phase windings () , wherein a phase winding has at least two phase winding elements () , wherein the phase winding elements () have coils () and coil connectors () , and the coil connectors () are routed parallel to one another.21818130133136171261201201391421713014217a,b. The stator winding () as claimed in claim 1 , characterized in that the stator winding () has an inner end winding () claim 1 , which has coil-side connectors () which connect coil sides () claim 1 , and which has a certain axial extent from a stator core () claim 1 , and coil connectors () of different phase winding elements () intersect one another in an end winding () claim 1 , wherein an intersection point () formed thereby is removed from the stator core () by such a distance that the inner end winding () is located between the intersection point () and the stator core ().318126. The stator winding () as claimed in claim 1 , characterized in that the coil connectors () which are routed parallel to one another have different lengths.418126145148. The stator winding () as claimed in claim 1 , characterized in that the coil connectors () have a trapezoidal form with in each case two sloping sections () and a straight section () therebetween.518126126120126120148126120148120. The stator winding () as claimed in claim 1 , characterized in that the coil connectors () are arranged in such a way that a pair of coil connectors () of a phase winding () is arranged furthest radially outwards and another pair of coil connectors () of another phase winding () with a straight section () is arranged furthest radially inwards claim 1 , wherein a further pair of coil connectors () of another phase winding () is arranged between straight sections () of the ...

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21-11-2013 дата публикации

STATOR TEETH, STATOR, ROTATING ELECTRIC MACHINE, AND METHOD FOR CONTROLLING ROTATING ELECTRIC MACHINE

Номер: US20130307455A1
Принадлежит: SHIBAURA INSTITUTE OF TECHNOLOGY

There is provided a single motor which performs plural driving characteristics and can expand output range thereof. Three coils are wounded around each of the stator teeth A to F, and provided to each stator tooth A to F are switches for providing a concentrated winding state by connecting the three coils in series in each stator tooth A to F, and switches for providing a distributed winding state by connecting in series the coils of any one of units through the stator teeth A to F Depending on the rotating speed, the torque or the like, the coils are changed between the concentrated winding state and the distributed winding state. 1. Stator teeth placed on a stator yoke , each stator tooth of the stator teeth comprising:at least two winding units being wound around the stator tooth; andat least one switch being connected with an end portion of one of the winding units and with an end portion of the other one of the winding units, whereinthe switch is capable of connecting with an end portion of another winding unit wound around another stator tooth.2. The Stator teeth claim 1 , according to claim 1 , whereinthe end portion of the one of the two winding units is further provided with a switch capable of connecting with the end portion of the another winding unit of the another stator tooth.3. A stator comprising a stator yoke; and stator teeth formed unifiedly with the stator yoke claim 1 , or placed on the stator yoke claim 1 , whereinat least two winding units u wound around each stator tooth of the stator teeth, andat least one switch is connected with an end portion of one of the winding units and an end portion of the other one of the winding units, whereinthe switch is capable of also connecting with an end portion of another winding unit wound around another stator tooth.4. The stator according to claim 3 , wherein the end portion of the one winding unit is further provided with a switch capable of connecting with the end portion of the another winding unit ...

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28-11-2013 дата публикации

Brushless motor and disk drive apparatus

Номер: US20130313935A1
Принадлежит: Nidec Corp

A brushless motor includes a stationary unit and a rotary unit rotatably supported with respect to the stationary unit. The stationary unit includes an armature and a base member arranged to support the armature. The rotary unit includes a magnet, a hub made of a magnetic material and a rotor yoke made of a magnetic material. The armature includes a plurality of coil patterns arranged along a circumferential direction. The hub includes an inner lower surface, an outer lower surface and a recess portion. The recess portion is arranged between the inner lower surface and the outer lower surface and depressed upward. At least a portion of the magnet is accommodated within the recess portion. At least one of the inner lower surface and the outer lower surface is positioned above a lower surface of the magnet.

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28-11-2013 дата публикации

Brushless motor

Номер: US20130313938A1
Принадлежит: Asmo Co Ltd

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.

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12-12-2013 дата публикации

BUS BAR OF MOTOR AND BUS BAR HOUSING

Номер: US20130328426A1
Принадлежит: New Motech Co., Ltd.

Disclosed is a bus bar having a plurality of connection taps formed radially therefrom, the bus bar including: first, second and third faces extended sequentially from the end of each connection tap in such a manner as to have a U-like side shape; and a coil insertion portion having a groove formed in a length direction of each connection tap on the center portions of the first, second and third faces and having a thickness lower than the thicknesses of the first, second and third faces, the coil insertion portion having a coil inserted into the groove thereof. 112. A bus bar having a plurality of connection taps formed radially therefrom , the bus bar comprising:{'b': 21', '23', '2, 'first, second and third faces to extended sequentially from the end of each connection tap in such a manner as to have a U-like side shape; and'}{'b': 24', '2', '21', '23', '21', '23', '24', '6, 'a coil insertion portion having a groove formed in a length direction of each connection tap on the center portions of the first, second and third faces to and having a thickness lower than the thicknesses of the first, second and third faces to , the coil insertion portion having a coil inserted into the groove thereof.'}22432466. The bus bar according to claim 1 , wherein the coil insertion portion has a coil seating portion formed on both ends thereof in such a manner as to have the same shape as the sectional shape of the coil and the diameter smaller than the coil .3246. The bus bar according to claim 1 , wherein the groove of the coil insertion portion has a width smaller than the diameter of the coil .43. A bus bar housing comprising:{'b': 31', '2, 'at least one or more bus bar insertion portions into which a bus bar having a plurality of connection taps is inserted; and'}{'b': 32', '31', '2, 'a plurality of mag mates disposed radially with respect to the at least one or more bus bar insertion portions in such a manner as to insert the plurality of connection taps thereinto.'}532. The ...

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12-12-2013 дата публикации

Cross-Interlocked Switch Type DC Electric Machine Having Auxiliary Excitation Winding And Conduction Ring And Brush

Номер: US20130328456A1
Автор: YANG Tai-Her
Принадлежит:

The present invention relates to a multi-set switched DC electric machine having conduction ring and brush and having its rotary part of electric machine being installed with an auxiliary excitation winding set, for being connected in series with a magnetic field winding set of electric machine of another electric machine through the auxiliary excitation winding set installed on the rotary part of electric machine, such that the excitation can be variable through altering the current of the magnetic field winding set of electric machine of the another electric machine thereby changing the operational characteristic of the electric machine. 1. A cross-interlocked switch type DC electric machine having auxiliary excitation winding and conduction ring and brush , which relates to a multi-set switched DC electric machine having conduction ring and brush having its rotary part of electric machine being installed with an auxiliary excitation winding set , for being connected in series with a magnetic field winding set of electric machine of another electric machine through the auxiliary excitation winding set installed on the rotary part of electric machine , such that the excitation can be variable through altering the current of the magnetic field winding set of electric machine of the another electric machine , and it mainly consists of:{'b': 103', '106', '102, 'first drive control device (): constituted by a drive electric control device composed of electromechanical components and/or solid sate components and/or microprocessors, served to receive signals from the first electric machine angular position sensor (), for controlling the timing, the polarity, the phase sequence and the value of voltage and current of the power supply excitation while the first magnetic field winding set of electric machine () being operated as a motor, or controlling the timing, the polarity, the phase sequence and the value of voltage and current of outputting electric power while being ...

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12-12-2013 дата публикации

Cross-Interlocked Switch Type DC Electric Machine Having Auxiliary Excitation Winding And Conduction Ring And Brush

Номер: US20130328457A1
Автор: YANG Tai-Her
Принадлежит:

The present invention relates to a multi-set switched DC electric machine having conduction ring and brush and having its rotary part of electric machine being installed with an auxiliary excitation winding set, which is served to be driven by the DC power source or by the DC power source rectified from the AC power source, for being connected in series with a magnetic field winding set of electric machine of another electric machine through the auxiliary excitation winding set installed on the rotary part of electric machine, such that the excitation can be variable through altering the current of the magnetic field winding set of electric machine of the another electric machine thereby changing the operational characteristic of the electric machine. 1. A cross-interlocked switch type DC electric machine having auxiliary excitation winding and conduction ring and brush , which relates to a multi-set switched DC electric machine having conduction ring and brush having the rotary part of magnetic force actuated electric machine being installed with an auxiliary excitation winding set , driven by the DC power source or by the DC power source rectified from the AC power source , for being connected in series with a magnetic field winding set of electric machine of another electric machine through the auxiliary excitation winding set installed on the rotary part of magnetic force actuated electric machine , such that the excitation can be variable through altering the current of the magnetic field winding set of electric machine of the another electric machine , and it mainly consists of:{'b': 103', '106', '102, 'first drive control device (): constituted by a drive electric control device composed of electromechanical components and/or solid sate components and/or microprocessors, served to receive signals from the first electric machine angular position sensor (), for controlling the timing, the polarity, the phase sequence and the value of voltage and current of the ...

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19-12-2013 дата публикации

ARMATURE WINDING OF ROTATING ELECTRICAL MACHINE

Номер: US20130334924A1
Принадлежит: KABUSHIKI KAISHA TOSHIBA

According to one embodiment, there is provided a 3-phase 2-pole 2-layer armature winding, housed in 72 slots provided in a laminated iron core, a winding of each phase including six parallel circuits separated into two phase belts. Upper coil pieces of first and fourth parallel circuits are placed at 3rd, 4th, 7th, and 12th positions, and lower coil pieces of the first and fourth parallel circuits are placed at 1st, 6th, 9th, and 10th positions, upper and lower coil pieces of second and fifth parallel circuits are placed at 2nd, 5th, 8th, and 11th positions, and upper coil pieces of third and six parallel circuits are placed at 1st, 6th, 9th, and 10th positions, and lower coil pieces of the third and six parallel circuits are placed at 3rd, 4th, 7th, and 12th positions, from the center of a pole. 1. A 3-phase 2-pole 2-layer armature winding of a rotating electrical machine , housed in 72 slots provided in a laminated iron core , the winding for each phase comprising:six parallel circuits separated into two phase belts comprising first and second phase belts, each parallel circuit comprising two coil pieces, an upper coil piece and a lower coil piece connected in series with each other at a connection side coil end and at a non-connection side coil end; andthe parallel circuits being connected such that upper and lower coil pieces of first and fourth parallel circuits are placed at 2nd, 5th, 9th, and 12th positions from the center of a pole; upper and lower coil pieces of second and fifth parallel circuits are placed at 1st, 6th, 10th, and 11th positions from the center of a pole; and upper and lower coil pieces of third and six parallel circuits are placed at 3rd, 4th, 7th, and 8th positions from the center of a pole, when relative positions of the upper and lower coil pieces in one phase belt are indicated by positions counted sequentially from the center of a pole.2. The armature winding of the rotating electrical machine according to claim 1 , wherein the ...

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02-01-2014 дата публикации

THREE-PHASE ALTERNATING CURRENT MOTOR

Номер: US20140001898A1

When stator winding wires of respective phases are concentratedly wound on a plurality of tooth portions provided on a stator iron core via insulating bobbins the stator winding wires of the respective phases are wound in winding spaces in slot sides so that winding heights become gradually higher toward outside diameter sides from inside diameter sides of the insulating bobbins, and in spaces formed by the stator winding wires, at the radial insides of the insulating bobbins, at outsides in an axial direction relative to the stator winding wires, connecting wires of the stator winding wires of the respective phases and a neutral point at which distal ends thereof are star-connected are placed along the spaces. 1. A three-phase AC motor including a stator in which a plurality of tooth portions are provided at an inner circumferential side of a stator iron core , and stator winding wires of U , V and W phases are concentratedly wound respectively on each of the tooth portions via an insulating bobbin ,wherein a plurality of slots each of Which is formed between the tooth portions are configured so that winding spaces are formed to be gradually wider toward an outside diameter side,wherein in the winding spaces, the stator winding wires of the respective phases are wound so that winding heights become gradually higher toward outside diameter sides from inside diameter sides of the insulating bobbins, andwherein in spaces that are formed by the wound stator winding wires at the inside diameter sides of the insulating bobbins and at an outer side in an axial direction relative to the wound stator winding wires, connecting wires of the stator winding wires of the respective phases and a neutral point at which distal ends of the winding wires are star-connected are placed along the spaces.2. The three-phase AC motor according to claim 1 ,wherein the stator winding wires of the respective phases have a single star type series winding structure.3. The three-phase AC motor ...

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02-01-2014 дата публикации

HIGH-EFFICIENCY POWER GENERATOR

Номер: US20140001907A1
Автор: Fukuyanagi Hisayoshi
Принадлежит:

A high-efficiency power generator has a rotor fixed on an input shaft and having a plurality of magnets in a rotor circumferential direction, and a stator which opposes the rotor in an opposing direction with a predetermined spacing therebetween and having stator coils wound around teeth which protrude in the opposing direction. The stator coils are arranged in an uneven-phase placement. 1. A high-efficiency power generator , comprising:a rotor fixed on an input shaft and has comprising a plurality of magnets in a rotor circumferential direction; anda stator which opposes the rotor in an opposing direction with a predetermined spacing therebetween and comprising stator coils wound around teeth which protrude in the opposing direction,wherein the stator coils are arranged in an uneven-phase placement.2. The high-efficiency power generator according to claim 1 ,wherein the teeth are placed with even spacing in a stator circumferential direction, andwherein the stator coils wound around the teeth are connected with respect to an output side such that phase differences between phases are uneven.3. The high-efficiency power generator according to claim 2 ,wherein the teeth are placed with even spacing in the stator circumferential direction,wherein a number of the stator coils wound around the teeth is smaller than a number of the teeth, andwherein the stator coils are connected with respect to the output side such that the phase differences between the phases are uneven.4. A high-efficiency power generator claim 2 , comprising:a rotor fixed on an input shaft and comprising a plurality of magnets in a rotor circumferential direction; anda stator which opposes the rotor in an opposing direction with a predetermined spacing therebetween and which has stator coils wound around a plurality of teeth which protrude in the opposing direction,wherein the stator coils are arranged in an uneven-load placement.5. The high-efficiency power generator according to claim 4 , whereinthe ...

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09-01-2014 дата публикации

Three-phase induction machine and method for operating a three-phase induction machine in an aircraft or spacecraft

Номер: US20140008971A1
Автор: Lars Hoffmann
Принадлежит: AIRBUS OPERATIONS GMBH

A three-phase induction machine with a starting winding and a running winding and a winding change-over switch which switches over a flow of current between the starting winding and the running winding, wherein a phase of the phases of the starting winding and a corresponding phase of the phases of the running winding of the three-phase induction machine are supplied with electrical energy by a common electrical supply line, and wherein one phase of the phases of the starting winding and the corresponding phase of the phases of the running winding are electrically interconnected by an electrically conductive connection in the three-phase induction machine. Also provided is a method for operating a three-phase induction machine as well as an aircraft or spacecraft which has a corresponding three-phase induction machine.

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09-01-2014 дата публикации

CONTROL DEVICE AND MOTOR UNIT INCLUDING THE CONTROL DEVICE

Номер: US20140009012A1
Автор: TANI Naoki
Принадлежит: JTEKT CORPORATION

A control device of a motor unit includes a housing, and a circuit board that is housed in the housing. The circuit board includes a first substrate portion which is fixed to a side wall and in which heat dissipation components are fitted onto a first main surface, a second substrate portion in which a second main surface faces the first main surface of the first substrate portion, and heating elements are fitted onto the second main surface, and a first connecting portion that connects an end portion of the first substrate portion with an end portion of the second substrate portion. The heating elements and the heat dissipation components face each other. 1. A control device including a circuit board and a housing , whereinthe housing has a supporting wall portion that supports the circuit board, and a first substrate portion that is arranged on the supporting wall portion, has a first main surface, and has one of a heating element and a heat dissipation component;', 'a second substrate portion that has a second main surface facing the first main surface of the first substrate portion, and has the other one of the heating element and the heat dissipation component, the heat dissipation component and the heating element facing each other; and, 'the circuit board includesa connecting portion that connects an end portion of the first substrate portion with an end portion of the second substrate portion.2. The control device according to claim 1 , wherein the control device includes a multi-layer printed circuit board made of thermoplastic resin films as the circuit board claim 1 , andeach of the first substrate portion, the second substrate portion, and the connecting portion in the circuit board is formed of the thermoplastic resin films.3. The control device according to claim 2 , whereinone of the first substrate portion and the second substrate portion has the heat dissipation component, a through hole, and a conductive portion,the through hole is filled with the ...

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16-01-2014 дата публикации

LIQUID COOLED HIGH EFFICIENCY PERMANENT MAGNET MACHINE WITH IN SLOT GLYCOL COOLING

Номер: US20140015347A1
Принадлежит: LCDRIVES CORP.

A permanent magnet motor, generator or the like that is liquid cooled using glycol or similar fluid with the means defining cooling passageways disposed directly in the winding slots of the stator between and in engagement with the windings and stator laminations. 1. A rotary electric machine comprising a stator having a circumaxially spaced series of axially extending teeth defining a similar series of circumaxially spaced winding slots therebetween , a plurality of stator windings at least partially disposed respectively in the slots , means defining a plurality of elongated coolant passageways disposed respectively in the slots between and in general engagement with the surfaces of the windings and the teeth.2. A rotary electric machine as set forth in and including a manifold interconnecting the coolant passageways at one end and supplying at least partially electrically conductive coolant to the passageways claim 1 , and means defining a series of passageways communicating with the coolant passageways and serving to directly interconnect the same and thus provide cooling loops confined entirely within the slots for the flow of coolant in one and an opposite direction to and from the manifold.3. A rotary electric machine as set forth in wherein the coolant is a mixture of ethylene glycol and water.4. A rotary electric machine as set forth in wherein dual parallel coolant loops are provided for each stator slot claim 1 , and wherein independent manifold and coolant supply sources are provided for the loops.5. A rotary electric machine as set forth in wherein the means defining the coolant passageways is of metallic construction.6. A rotary electric machine as set forth in wherein the means defining the coolant passageways is at least in part aluminum.7. A rotary electric machine as set forth in wherein the construction employs soldering.8. A rotary electric machine as set forth in wherein the construction employs brazing.9. A rotary electric machine as set forth ...

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16-01-2014 дата публикации

LIQUID COOLED HIGH EFFICIENCY PERMANENT MAGNET MACHINE WITH GLYCOL COOLING

Номер: US20140015351A1
Принадлежит: LCDRIVES CORP.

A permanent magnet motor, generator or the like that is liquid cooled using glycol or similar fluid with the cooling applied directly in the winding slots of the stator and in self contained loops such that no adverse loops are formed. 1. A rotary electric machine comprising a stator having a circumaxially spaced series of axially extending teeth defining a similar series of circumaxially spaced winding slots therebetween , a plurality of stator windings at least partially disposed respectively in the slots , means defining a plurality of elongated coolant passageways disposed respectively in the slots , a manifold interconnecting the coolant passageways at one end and supplying at least partially electrically conductive coolant to the passageways , and means defining a series of passageways communicating with the coolant passageways and serving to directly interconnect the same and thus provide cooling loops confined entirely within the slots for the flow of coolant in one and an opposite direction to and from the manifold.2. A rotary electric machine as set forth in wherein the coolant is a mixture of ethylene glycol and water.3. A rotary electric machine as set forth in wherein dual parallel coolant loops are provided for each stator slot claim 1 , and wherein independent manifold and coolant supply sources are provided for the loops.4. A rotary electric machine as set forth in wherein the means defining the coolant passageways is of metallic construction.5. A rotary electric machine as set forth in wherein the means defining the coolant passageways is at least in part aluminum.6. A rotary electric machine as set forth in wherein the construction employs soldering.7. A rotary electric machine as set forth in wherein the construction employs brazing.8. A rotary electric machine as set forth in wherein the brazing filler material is added in sheet form.9. A rotary electric machine as set forth in wherein the brazing filler material is added in paste form.10. A ...

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16-01-2014 дата публикации

HIGH EFFICIENCY PERMANENT MAGNET MACHINE WITH CONCENTRATED WINDING AND DOUBLE COILS

Номер: US20140015352A1
Принадлежит: LCDRIVES CORP.

A permanent magnet motor, generator or the like that is constructed such that each coil is manufactured as two individual coils. 1. A rotary electric machine comprising a stator having a circumaxially spaced series of axially extending teeth defining a similar series of circumaxially spaced outwardly open winding slots therebetween , a plurality of stator coils at least partially disposed respectively in the slots , each stator coil being of the non-overlapping concentrated type and comprising at least two discrete windings.2. A rotary electric machine as set forth in wherein each winding is configured in a double layer configuration.3. A rotary electric machine as set forth in wherein the windings are generally concentric with each other.4. A rotary electric machine as set forth in wherein at least some of the windings are electrically in parallel with each other.5. A rotary electric machine as set forth in wherein a wicking material is inserted between at least two of the windings6. A rotary electric machine as set forth in wherein an inner coil section takes a generally triangular configuration.7. A rotary electric machine as set forth in wherein an inner coil section takes a generally quadrilateral configuration with at least three sides of the quadrilateral unequal.8. A rotary electric machine as set forth in wherein means are provided defining a plurality of elongated coolant passageways disposed respectively in the slots claim 1 , a manifold interconnecting the coolant passageways at one end and supplying at least partially electrically conductive coolant to the passageways claim 1 , and means are provided defining a series of passageways communicating with the coolant passageways and serving to directly interconnect the same and thus provide cooling loops confined entirely within the slots for the flow of coolant in one and an opposite direction to and from the manifold.9. A rotary electric machine as set forth in wherein means is provided defining a ...

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16-01-2014 дата публикации

HIGH EFFICIENCY PERMANENT MAGNET MACHINE WITH LAYER FORM WINDING

Номер: US20140015353A1
Принадлежит: LCDRIVES CORP.

A permanent magnet motor, generator or the like that is constructed with a layer form wound winding for easy manufacturing of robust machines 1. A rotary electric machine comprising a stator having a circumaxially spaced series of axially extending teeth defining a similar series of circumaxially spaced outwardly open winding slots therebetween , a plurality of stator coils at least partially disposed respectively in the slots , each of said stator coils being of a layer wound construction with wires positioned Individually in regular fashion through its stator slot , multiple conductors being connected in parallel with an approximate equal number of turns each , and the beginning of each conductor being positioned at a discrete axial position with said positions spread throughout the axial length of each coil.2. A rotating electric machine as set forth in wherein a cover claim 1 , which is at least semi rigid claim 1 , is disposed over the start of the winding.3. A rotating electric machine as set forth in wherein wire crossovers are located only at the end of each winding.4. A rotating electric machine as set forth in wherein the winding pattern is selected so that no two adjacent conductors carry voltages which differ by more than one third the total voltage of the machine.5. A rotating electric machine as set forth in wherein the winding pattern is selected so that no two adjacent conductors carry voltages which differ by more than one quarter the total voltage of the machine.6. A rotary electric machine as set forth in wherein insulating tape is added when two adjacent conductors carry voltages which differ by more than one third the total voltage of the machine.7. A rotary electric machine as set forth in wherein insulating tape is inserted when two adjacent conductors carry voltages which differ by more than one quarter the total voltage of the machine8. A rotary electric machine as set forth in wherein the conductors are circular in cross section.9. A rotary ...

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16-01-2014 дата публикации

Electric Machine Cooling Arrangement And Method

Номер: US20140015355A1
Принадлежит: Deere & Company

An electric machine coupled to a driven device in a vehicle, the electric machine including a stator and a housing containing the stator. The housing has at least one cooling channel around at least a portion of an internal circumference of the housing. The cooling channel is defined by a first housing portion and a second housing portion, the first housing portion being sealed to the second housing portion. 1. A vehicle , comprising:a driven device; and a stator; and', 'a housing containing the stator, said housing having at least one cooling channel around at least a portion of an internal circumference of said housing, said housing including a first housing portion and a second housing portion, said cooling channel being defined by said first housing portion and said second housing portion, said first housing portion being sealed to said second housing portion., 'an electric machine coupled to said driven device, the electric machine comprising2. The vehicle of claim 1 , wherein said stator is at least partially sealed to one of said first housing portion and said second housing portion.3. The vehicle of claim 1 , wherein said at least one cooling channel includes at least one serpentine cooling channel claim 1 , said first housing portion and said second housing portion are castings claim 1 , said serpentine cooling channel having two opposing sides including a first side and a second side claim 1 , said first side being associated with said first housing portion claim 1 , said second side being associated with said second housing portion.4. The vehicle of claim 3 , wherein said first housing portion and said second housing portion slide together to thereby form said serpentine cooling channel.5. The vehicle of claim 4 , further comprising a seal disposed between said first housing portion and said second housing portion.6. The vehicle of claim 5 , wherein said at least one serpentine cooling channel includes a first serpentine cooling channel and a second ...

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23-01-2014 дата публикации

HEAVY DUTY MILL

Номер: US20140021279A1
Принадлежит: FLSMIDTH A/S

In a drive arrangement for a heavy duty mill an electric motor with a high number of magnetic poles and a stator that is segmented into at least four stator segments is used. By providing one, more or all of the stator segments with a three phase winding system, a highly modular mill drive with a high power density and therefore reduced space requirements is provided. 1. A drive arrangement for a heavy duty mill , including an electric motor with a rotor and a stator , characterised in that a number of magnetic poles of the rotor is at least eight and in that the stator is segmented into at least four stator segments each having at least two winding areas , where a winding is provided in each winding area of at least one stator segment.2. A drive arrangement according to claim 1 , where the number of magnetic poles of the rotor is twenty and the stator includes exactly ten stator segments.3. A drive arrangement according to claim 1 , where each stator segment has exactly three winding areas and where the windings provided in the winding areas of a stator segment are connected in a star circuit claim 1 , where both ends of each winding are preferably lead to an outside of a housing of the motor through a single opening and where a star point of the star circuit is preferably positioned outside of the housing.4. A drive arrangement according to claim 1 , where the electric motor includes one claim 1 , advantageously two or more redundantly arranged measuring units for determining an angular position of the rotor claim 1 , where a measuring unit preferably includes a resolver.5. A drive arrangement according to claim 1 , including at least one frequency converter that is connected to the windings of a stator segment claim 1 , where the at least one frequency converter is preferably connected to the windings of at most two stator segments.6. A drive arrangement according to claim 5 , where each frequency converter is operable with a switching frequency higher than 1 kHz ...

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30-01-2014 дата публикации

HIGH LIFT SYSTEM FOR AN AIRCRAFT

Номер: US20140027580A1
Принадлежит:

A high lift system for an aircraft, which extends and retracts the landing flaps of the aircraft in a fully electric manner. In this context, a fully electric drive is used, comprising an electric motor having an internal redundancy, in such a way that the electric motor is configured as a fault-tolerant electric motor. It may thus be possible to do without a coupling gear unit in the electric motor. 1. A high lift system for an aircraft , the high lift system comprising:a fully electric drive including an electric motor which drives a landing flap of the high lift system,wherein the electric motor has internal redundancy due to redundant windings.2. The high lift system according to claim 1 ,wherein the internal redundancy is configured as an m×n phase topology,wherein n phases of the electric motor are combined into a phase group in each case, resulting in m submotors, andwherein the electric motor is configured in such a way that all m submotors are connected, without a gear unit, to a single shaft of the electric motor.3. The high lift system according to claim 2 ,wherein the electric motor comprises only one drive train.4. The high lift system according to claim 3 ,wherein the individual submotors are configured in such a way that they each provide at least one of the same rotational speed and the same torque.5. The high lift system according to claim 2 ,wherein each submotor provides a torque, andwherein the electric motor is configured in such a way that the torques of the submotors are added to drive the landing flap.6. The high lift system according to claim 2 ,wherein the electric motor is configured in such a way that if at least one of the submotors and the phase groups fail, a predefined motor output power is provided by the rest of the electric motor, which remains intact.7. The high lift system according to claim 2 ,wherein the high lift system comprises the landing flap, and a nominal torque is required for the landing flap to be driven by the ...

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30-01-2014 дата публикации

Electric drive motor for a work apparatus

Номер: US20140028126A1
Принадлежит: Andreas Stihl AG and Co KG

An electric drive motor for a work apparatus includes a stator having two stator poles which are at a distance from one another in the circumferential direction and have respective field windings. The motor has a rotor which rotates between the stator poles and the rotor shaft of the rotor drives a fan wheel. The cooling-air flow generated by the fan wheel enters the stator, flows therethrough and is discharged therefrom. For effective cooling, a pole intermediate space is provided between the stator poles; and, for the cooling-air flow, this space is filled by a non-magnetic guide body to provide a cooling duct delimited by the guide body and the field windings. The guide body is fastened to a support at one stator end and is inserted axially into the stator at the other end thereof.

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30-01-2014 дата публикации

Rotary electric machine and method of manufacturing the same

Номер: US20140028130A1
Принадлежит: Mitsubishi Electric Corp

A rotary electric machine according to the present invention includes a stator having a connection member forming a three phase delta connection by coil windings. In the rotary electric machine, the connection member is composed of an insulating annular groove portion formed with double annular grooves and a first, a second, and a third annular conductive members, the annular conductive members being attached by insertion into the insulating annular groove portion; the insulating annular groove portion is formed with double grooves of one and the other, and both the grooves are connected via one window portion; the respective annular conductive members are each formed in a circular arc shape and provided with a plurality of arm portions extended outward in the radial direction of the stator, the plurality of arm portions being connected to coil end portions of the coil windings respectively; the first annular conductive member and the second annular conductive member are attached by insertion into different grooves of the insulating annular groove portion, are overlapped at a part of opened sections where a circular arc is not present, are in a positional relationship in which both annular conductive members are opened, and are attached by insertion so that the window portion is disposed at the position where both annular conductive members are opened; and the third annular conductive member is made such that a portion to be attached by insertion into one groove and a portion to be attached by insertion into the other groove are attached by insertion into the insulating annular groove portion via the window portion.

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30-01-2014 дата публикации

ROTATION DRIVE DEVICE AND CENTRIFUGAL PUMP APPARATUS EMPLOYING SAME

Номер: US20140030122A1
Принадлежит: Thoratec Corporation

This centrifugal blood pump apparatus includes an impeller () provided in a blood chamber (), and a plurality of coils () provided in a motor chamber () for driving the impeller () to rotate with a dividing wall () interposed therebetween. A flexible substrate () in the shape of a strip is arranged to surround outer circumferences of the plurality of coils (), and is connected to the plurality of coils () and a connector (). A driving voltage (VU, VV, VW) is externally supplied to the plurality of coils () via the connector () and the flexible substrate (). Thus, assembling workability, productivity and reliability are improved. 1. A rotation drive device comprising:a rotatably provided rotor; anda drive unit for driving said rotor to rotate, a plurality of first magnetic elements provided facing said rotor,', 'a plurality of coils wound around said plurality of first magnetic elements, respectively, for generating a rotating magnetic field,', 'a connector for externally receiving a driving voltage, and', 'a flexible substrate connected to said plurality of coils and said connector,', 'said flexible substrate being provided with a wiring pattern for supplying said driving voltage externally provided via said connector to said plurality of coils., 'said drive unit including2. The rotation drive device according to claim 1 , whereinsaid rotor includes a plurality of first permanent magnets,each first permanent magnet is magnetized in a direction orthogonal to a rotation direction of said rotor,the magnetic polarities of adjacent ones of said first permanent magnets oppose each other, andsaid plurality of first magnetic elements are arranged to face said plurality of first permanent magnets.3. The rotation drive device according to claim 2 , whereinsaid rotor further includes a plurality of second permanent magnets,said plurality of second permanent magnets are interposed between said plurality of first permanent magnets, respectively,each second permanent magnet is ...

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06-02-2014 дата публикации

ROTATING ELECTRIC MACHINE

Номер: US20140035400A1
Автор: ASANO Nobuhiro
Принадлежит:

A rotating electric machine includes a hollow cylindrical stator core and a stator coil mounted on the stator core. The stator core has a plurality of slots that are arranged in a circumferential direction of the stator core. The stator coil is formed of a plurality of substantially U-shaped electric conductor segments to include at least one Δ-Y connection. The Δ-Y connection is comprised of a Δ-connected first three-phase winding and a Y-connected second three-phase winding. The first three-phase winding includes three phase windings that are Δ-connected to define three terminals of the first three-phase winding therebetween. The second three-phase winding includes three phase windings that are respectively connected to the three terminals of the first three-phase winding. Further, the number of turns of the first three-phase winding and the number of turns of the second three-phase winding are respectively set to two different odd numbers. 1. A rotating electric machine comprising:a rotor; anda stator including a hollow cylindrical stator core and a stator coil mounted on the stator core, the stator core having a plurality of slots that are arranged in a circumferential direction of the stator core, the stator coil being formed of a plurality of substantially U-shaped electric conductor segments to include at least one Δ-Y connection, the Δ-Y connection being comprised of a Δ-connected first three-phase winding and a Y-connected second three-phase winding, the first three-phase winding including three phase windings that are Δ-connected to define three terminals of the first three-phase winding therebetween, the second three-phase winding including three phase windings that are respectively connected to the three terminals of the first three-phase winding,whereinthe number of turns of the first three-phase winding and the number of turns of the second three-phase winding are respectively set to two different odd numbers.2. The rotating electric machine as set ...

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06-02-2014 дата публикации

Angled weld end turns for coolant access

Номер: US20140035404A1
Принадлежит: REMY TECHNOLOGIES LLC

An electric machine includes a stator core having a plurality of circumferentially-oriented slot positions, each slot position having a plurality of radially-oriented slots, each slot extending longitudinally through the core. The stator core has a plurality of conductor segments each extending through at least one of the slots. When a slot position is populated with at least two conductor segments, at least two exterior conductor portions exiting the slot position are angled radially apart from one another by more than one degree. A method of cooling an electric machine includes providing coolant access to embedded conductor end turn portions of a stator having circumferentially spaced slot positions by radially spreading exterior conductor portions exiting populated ones of the slot positions.

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06-02-2014 дата публикации

ELECTRIC MOTOR

Номер: US20140035416A1
Автор: Fischer Peter
Принадлежит: Grundfos Holding A/S

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 ...

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06-02-2014 дата публикации

ELECTRIC MACHINE

Номер: US20140035425A1
Автор: Dajaku Gurakuq
Принадлежит: FEAAM GmbH

The proposed principle relates to an electric machine having a stator () and a rotor () that can move relative to the stator. The stator () comprises a first and at least one second winding system () that have coils, each of which is placed in stator slots () and is wound around stator teeth (). The first winding system () and the second winding system () each have at least one tooth () around which no coil is wound. When combining the first and second winding system (), all teeth of the stator () have coils wound around them. 1. An electric machine , comprising:a stator; anda rotor that can move relative to the stator,the stator comprising a first and at least one second winding system that have coils which are inserted in slots of the stator and wound around teeth of the stator in each case,wherein the first winding system and the second winding system each comprise at least one winding-free tooth, andwherein all teeth of the stator are provided with a winding when the first and second winding systems are combined.2. The electric machine according to claim 1 , wherein the first and the second winding systems each comprise concentrated coils which each are wound around exactly one tooth.3. The electric machine according to or claim 1 , wherein the first and second winding systems combine a one-layer winding and a multi-layer winding with each other.4. The electric machine according to claim 1 , wherein the first and second winding systems each comprise at least two electric phases.5. The electric machine according to claim 4 , wherein the at least one winding-free tooth is arranged between teeth which are wrapped with coils associated to different electric phases.6. The electric machine according to claim 4 , wherein the at least one winding-free tooth is arranged between teeth which are wrapped with coils associated to the same electric phase.7. The electric machine according to one of to claim 4 , wherein directly adjoining coils of the same electric phase and of ...

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13-02-2014 дата публикации

DC MOTOR

Номер: US20140042864A1
Автор: Ichikawa Tetsuaki
Принадлежит: ASMO CO., LTD.

A DC motor has a stator including two magnets arranged in a circumferential direction. An armature includes an armature core having eight slots arranged in a circumferential direction and radially facing the magnets. A commutator rotates integrally with the armature core and includes four segments separated in the circumferential direction by four grooves arranged in the circumferential direction. Coils are wound in a distributed winding in the slots. Two brushes contact the segments. Two coils, which are arranged at an interval of electric angle 180° and connected in series to each other, are connected to two of the segments that are electrically short circuited by each of the brushes so that the two coils extend between the segments. Each groove is located at a position deviated from a position separated by electric angle 180° in the circumferential direction from another one of the grooves. 1. A DC motor comprising:a stator including n (where n is an even number that is greater than or equal to two) magnetic poles arranged in a circumferential direction;an armature includingan armature core that includes 2 nm (where m is a positive integer, and n is an even number that is greater than or equal to two) slots arranged in a circumferential direction and radial facing the magnetic poles,a commutator that rotates integrally with the armature core, wherein the commutator includes inn (where m is a positive integer, and n is an even number that is greater than or equal to two) segments separated in the circumferential direction by inn (where m is a positive integer, and n is an even number that is greater than or equal to two) grooves arranged in the circumferential direction, anda plurality of coils wound in a distributed winding in the slots; anda plurality of brushes that contact the segments,wherein at least two of the coils, which are arranged at an interval that is an integral multiple of electric angle 180° and connected in series to each other, are connected to ...

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06-03-2014 дата публикации

ROTATING ELECTRIC MACHINE DRIVE SYSTEM

Номер: US20140062236A1
Принадлежит: Denso Corporation

A rotating electric machine drive system has a rotating electric machine and a controller positioned on an axial end of a rotating shaft of the rotating electric machine. The controller has a main current circuit board for flowing a main electric current. The system includes a conductor extending in a direction parallel to the rotating shaft of the rotating electric machine, serving as a stator winding wire, and connecting to the main current circuit board of the controller. In such a structure, a cross-sectional area of a terminal connection portion on an extension part of the conductor extending in a direction parallel to the rotating shaft is less than a cross-sectional area of a portion of the conductor within a plurality of conductor housings arranged on circumference of a stator of the rotating electric machine. 1. A rotating electric machine drive system , the system having a rotating electric machine and a controller positioned on an axial end of a rotating shaft of the rotating electric machine , the controller having a main current circuit board for flowing a main electric current , the system comprising:a plurality of conductor housings arranged on a circumference of a stator of the rotating electric machine; anda conductor connected to the main current circuit board, housed in one of the plurality of conductor housings, extending in a direction parallel to the rotating shaft, and serving as a stator winding wire, whereinthe conductor has a terminal connection portion extending in the direction parallel to the rotating shaft, andthe terminal connection portion of the conductor has a cross-sectional area that is less than a cross-sectional area of the conductor housed in one of the plurality of conductor housings.2. A rotating electric machine drive system of claim 1 , whereinthe rotating electric machine includesa case member containing the stator of the rotating electric machine,a rotor co-axially positioned and rotatably disposed inside of the stator,a ...

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13-03-2014 дата публикации

COIL ASSEMBLY FOR THREE PHASED TRANSVERSE AXIAL FLUX MULTI DISK MACHINES

Номер: US20140070638A1
Автор: BRENNVALL Jon EIRIK
Принадлежит:

This patent describes a coil assembly for a three phased permanent magnet (PM) iron free axial flux multi disc electric machine. The coil assembly is assembled from coil elements () made of flat wire (), and then machined so they can be assembled into a flat disk. The coil elements () can further be inserted into a frame (), and the coil elements () can be connected by wires () which do not cross each other. 1) Coil assembly for three phased transverse axial flux multi disk machines where the coil elements are wound of flat wire/foil , characterized by that there in each coil element are made eight slots , four on each side of the coil element , shaped so that it is possible to assemble the coil elements into a circular coil disk with approximate same thickness as the width of the flat wire/foil.2) Coil assembly according to claim 1 , where the angle (α) between the coil legs in each coil element is 5*360°/(2*6*n) claim 1 , where n is an integer equal to or larger than three and the extension of the coil legs meet in the centre of the coil assembly claim 1 , since this is a requirement for the coil elements to assemble into a complete three phased coil assembly.329) Coil assembly according to claim 1 , where half of the coil elements is wound counter clockwise and the other half of the coil elements are wound clockwise and that in the coil assemble the different type of coil elements are collected into groups of three claim 1 , making t possible to connect the coil elements with connector wires () which do not cross each other.4) Coil assembly according to claim 1 , where the coil elements after assembly are inserted into a coil frame which is prefabricated with an edge for the heads of the coil elements claim 1 , holes for the connector pins and on the back side slots for the connector wires arranged so that the connector wires do not cross each other.5) Coil assembly according to claim 1 , where the coil frame has holes and slots where the slots can be fitted with ...

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13-03-2014 дата публикации

ROTARY ELECTRIC MACHINE

Номер: US20140070639A1
Автор: TAMURA Akito
Принадлежит: Denso Corporation

A rotary electric machine includes a rotor, a stator disposed facing the rotor in a radial direction having a stator core with a plurality of slots aligned in a circumferential direction and a stator winding wound around the slots of the stator core, and a cooling mechanism for cooling first and second coil-end groups of the stator winding by dropping a liquid coolant from an outer peripheral side thereof. The stator is disposed along an inner circumferential surface of at least one of the first and the second coil-end groups of the stator winding, and there is provided a shielding member for preventing the liquid coolant from falling into the inner circumferential side of the first and the second coil-end groups. Thus, it is possible to cool throughout the first and the second coil-end groups efficiently and reliably by the liquid coolant, a sufficient cooling effect can be obtained. 1. A rotating electric machine comprising:a rotor;a stator disposed facing the rotor in a radial direction having a stator core with a plurality of slots aligned in a circumferential direction and a stator winding wound around the slots of the stator core; anda cooling mechanism for cooling a plurality of coil-end groups of the stator winding by dropping a liquid coolant from an outer peripheral side thereof; wherein,the stator is disposed along an inner circumferential surface of at least one of the coil-end groups of the stator winding; andthere is provided a shielding member for preventing the liquid coolant from falling into the inner circumferential side of the coil-end groups.2. The rotating electric machine according to claim 1 , wherein claim 1 ,the shielding member has a flange portion spreading outwardly in a radial direction from an outer end in an axial direction of the shielding member.3. The rotating electric machine according to claim 1 , wherein claim 1 ,the shielding member is adhered to the coil-end groups using an adhesive agent.4. The rotating electric machine ...

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13-03-2014 дата публикации

STATOR FOR ROTARY ELECTRIC MACHINE AND METHOD FOR MANUFACTURING THE STATOR

Номер: US20140070646A1
Принадлежит:

Provided is a stator for a rotary electric machine, capable of reducing a space on an end surface of a stator core on an inner diameter side to reduce a size in an axial direction to realize a compact size by maintaining an insulating distance corresponding to a potential difference. In the stator for a rotary electric machine according to the present invention, a coil portion includes a coil main-body portion () and a second connecting wire (). The second connecting wire () includes a first bent portion () and a second connecting-wire end portion (A). The second connecting wire () is configured so that a differential value of a length z in the axial direction of the stator to a length r in the radial direction of the stator is Δz/Δr≧0. 1. A stator for a rotary electric machine , comprising:a stator core having a hollow cylindrical shape, including a plurality of slots formed along a circumferential direction by a plurality of teeth, each having a distal end portion projecting to an inner diameter side; anda stator winding provided to the stator core, including a plurality of coil portions, each including a conductor wound around each of the plurality of teeth, electrically connected to each other through terminal members provided on an outer diameter side of an end surface of the stator core, wherein:each of the plurality of coil portions includes: a coil main-body portion; a first connecting wire drawn from an outermost diameter portion of the coil main-body portion; and a second connecting wire drawn from an innermost diameter portion of the coil main-body portion;the first connecting wire includes a first connecting-wire end portion connected to one terminal-member end portion of a corresponding one of the terminal members;the second connecting wire includes a first bent portion formed by bending the second connecting wire outward in a radial direction of the stator core and a second connecting-wire end portion connected to another terminal-member end portion of ...

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20-03-2014 дата публикации

HAIRPIN CONNECTING DEVICE AND HAIRPIN WINDING MOTOR INCLUDING THE SAME

Номер: US20140077636A1
Автор: JUNG Dae Sung
Принадлежит:

Disclosed are a hairpin connecting device and a hairpin winding motor including the same. An exemplary embodiment of the present invention may provide a hairpin connecting device including: a cover part shaped like a circular loop fastened to a leg side of a stator core; and a plurality of connection caps arranged inside the cover part in a circumference direction and configured to electrically connect connected ends of respective hairpins exposed to the leg side. 1. A hairpin connecting device , comprising:a cover part shaped like a circular loop fastened to a leg side of a stator core; anda plurality of connection caps arranged inside the cover part in a circumference direction and configured to electrically connect connected ends of respective hairpins exposed to the leg side.2. The hairpin connecting device of claim 1 , wherein the cover part is formed of an insulator.3. The hairpin connecting device of claim 1 , wherein the respective connection caps are formed of electrical conductors.4. The hairpin connecting device of claim 1 , wherein the cover part is formed so as to shield the hairpins exposed to the leg side from the outside.5. The hairpin connecting device of claim 1 , wherein the respective connection caps comprise:first connection caps arranged inside the cover part in a radius direction; andsecond connection caps arranged outside the cover part in a radius direction so as to be adjacent to the first connection cap.6. The hairpin connecting device of claim 5 , wherein the first connection cap electrically connects a first connected end disposed at an internal circumferential side of the stator core and a second connected end disposed at an external circumference side of the first connected end claim 5 , andthe second connection cap electrically connects a third connected end disposed at an external circumferential side of the second connected end and a fourth connected end disposed at an external circumference side of the third connected end.7. The ...

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20-03-2014 дата публикации

ELECTRIC WINDING FOR ELECTRIC ENERGY CONVERTERS OR MACHINES, METHOD FOR MANUFACTURING SAME AND ELECTRIC MACHINE

Номер: US20140077648A1
Принадлежит:

A winding is provided for electric energy converters, such as electric machines, like electric motors, generators or transformers, and a respective machine. The winding has conductor paths applied to a flexible carrier material by means of a printing process, in particular screen printing process. The conductor path preferably includes an electrically conductive paste. The conductor paths are printed one above the other in layers, and an insulating layer is applied between individual layers of the conductor paths. The conductor paths are arranged such that the conductor paths of superimposed winding layers preferably are transversely shifted against each other in a pre-finished, rolled up state. 1. Winding for electrical energy converter on the basis of electromagnetic force , said winding comprising conductor paths applied to a flexible carrier material by means of a printing process , in particular screen printing process , wherein the conductor paths are made of electrically conductive particulate or fluid material , in particular paste , such as a silver paste , and the conductor paths are printed in several superimposed layers , where an insulating layer is applied , preferably printed between the individual layers of the conductor paths.2. Winding according to claim 1 , wherein the winding comprises four layers printed on each other:as first layer a supply conductor of the conductor path printed on the carrier material;as second layer an insulating layer;as third layer a return conductor of the conductor path; andas fourth and final layer an insulating layer;wherein the first and third layer are connected through an interlayer connection.3. Winding according to claim 2 , wherein said interlayer connection is realized through the connection of small winding head portions of supply conductor and return conductor claim 2 , and wherein said small winding head portions project respectively beyond the interposed second layer having no contact to this layer.4. ...

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