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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 11051. Отображено 100.
20-04-2000 дата публикации

Пазовая часть электродвигателя

Номер: RU0000013522U1
Автор: ИСКИЕРДО Хосе Антонио БЕНИТО
Принадлежит: Мавилор Систем СА

1. Пазовая часть электродвигателя с постоянными магнитами, образующая ротор или статор двигателя, отличающаяся тем, что пазы (3) перекрыты по меньшей мере на отдельном участке их длины элементами в виде перемычки (4) из магнитного материала, причем эти элементы в виде перемычки закреплены на зубьях (2), ограничивающих каждый паз, и выполнены с возможностью обеспечения частичного магнитного запирания на участке между двумя зубьями.2. Пазовая часть по п.1, отличающаяся тем, что пазы (3) перекрыты, предпочтительно, полностью по всей длине указанными элементами (4).3. Пазовая часть по п.1, отличающаяся тем, что она образована пакетом листов, и что элементы в виде перемычки (4) также образованы пакетом листов (5), причем плоскости каждого из листов, образующих элементы в виде перемычки (4), располагаются параллельно плоскостям листов пазовой части.4. Пазовая часть по п.3, отличающаяся тем, что размер элементов в виде перемычки (4) - в продольном направлении зубьев - высота (Н) пакетов листов (5), образующих указанные элементы, составляет величину, превышающую толщину листов (5) от 2 до 5 раз.5. Пазовая часть по п.3 или 4, отличающаяся тем, что листы (5) элементов в виде перемычки (4) слегка изогнуты наружу и снабжены на своих концах профильными выступами (6) и что на концах профилей зубьев (2) листов указанной части, ограничивающих пазы (3), предусмотрены выемки (8), форма которых совместима с формой выступов (6) элементов в виде перемычки, и внутри которых фиксируются указанные элементы в виде перемычки (4).6. Пазовая часть по любому из пп.3-5, отличающаяся тем, что листы (5) элементов в виде перемычки (4) содержат полученные при штамповке отверстия (7), располож И 1 13522 ко (19) (11) 45 ка 03 РО ^ х% 5 У ра 0 и (51) МПК НО2К 1/00 (2000.01) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К СВИДЕТЕЛЬСТВУ (21), (22) Заявка: 99105926/20, 26.03.1999 (71) Заявитель(и): Мавилор Систем СА (СН) (24) Дата начала отсчета срока действия патента: ...

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Номер записи: 1
26-07-2018 дата публикации

Электрическая машина

Номер: RU0000181894U1
Автор: Александр Александрович Афанасьев, Вячеслав Валерьевич Ефимов, Дмитрий Анатольевич Токмаков, Роман Артемьевич Романов
Принадлежит: Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации

Полезная модель относится к области электротехники, а именно к электрическим машинам и может найти применение при создании асинхронных и синхронных электродвигателей и электрогенераторов.Электрическая машина, содержащая статор с полузакрытыми пазами, магнитные клинья для фиксации обмотки статора и ротор с постоянными магнитами, отличающаяся тем, что магнитные клинья выполнены т-образными и расположены таким образом, что тело магнитного клина помимо части паза занимает и его шлиц, при этом относительная магнитная проницаемость материала клина не менее 40.Заявляемая полезная модель позволяет уменьшить зубцовые пульсации электромагнитного момента, уменьшить вихревые токи в массиве постоянных магнитов и снизить их нагрев.

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Номер записи: 2
19-01-2012 дата публикации

Method for Forming Electrodynamic Machine Insulated Coils

Номер: US20120011708A1
Автор: Klaus Schäfer, Nicholas G. Lang, Willi Lutz, William R. Finley
Принадлежит: Siemens Industry Inc

A method for manufacturing electrodynamic machine conductive coils, such as alternating current induction motor stator coils. A continuous strand of insulation coated wire is formed into a generally planar elongated closed loop having a circumference and an outer surface. Thereafter a permanent insulation layer is applied to the closed loop outer surface, preferably by spiral wrapping insulating tape about the circumference of the closed loop with a tape wrapping machine. The insulating tape has a catalytic chemical compound including at least one part of a multi-part epoxy resin. The closed loop is shaped into a rigid conductive coil by application pressure, in order to conform the coil to a desired profile. Application of the permanent insulation layer to the closed loop prior to its final shaping enables machine insulation taping over a larger portion of the coil circumference and reduces need for slower and more expensive hand taping.

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Номер записи: 3
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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Номер записи: 4
19-04-2012 дата публикации

Conductor wire for motor and coil for motor

Номер: US20120092117A1
Автор: Hiroaki Urano
Принадлежит: Toyota Motor Corp

The present application has a purpose to provide a conductor wire for motor capable of improving durability against bending, and a coil for motor using the conductor wire for motor. One aspect of the invention, therefore, provides a conductor wire for motor comprising a fine wire assembly and a coating member covering an outer peripheral surface of the fine wire assembly, the fine wire assembly consisting of a plurality of fine wires assembled in a bundle, and each of the fine wires including a conductor and an insulating part provided on an outer peripheral surface of the conductor, wherein the coating member is made of metal, and the coating member has an electrical resistance value larger than an electrical resistance value of the conductor.

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Номер записи: 5
26-04-2012 дата публикации

Linear motor, back yoke for linear motor, and manufacturing method of back yoke

Номер: US20120098356A1
Автор: Kesatoshi Takeuchi
Принадлежит: Seiko Epson Corp

A linear motor includes a slider unit having a magnet row in which plural permanent magnets are arranged in series so that the same poles are opposed to each other and moving in an arrangement direction of the magnet row by electromagnetic force, a stator unit in which the slider unit is inserted at an inner circumference side and electromagnetic coils for plural phases that receive supply of drive currents at different phases with respect to each phase are arranged along a movement direction of the slider unit, and a back yoke provided at an outer circumference side of the electromagnetic coils for plural phases in the stator unit, wherein plural slits along the movement direction of the slider unit for dividing a generation region of eddy currents into plural parts are formed in the back yoke.

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Номер записи: 6
26-04-2012 дата публикации

Stabilization of rotating machinery

Номер: US20120098371A1
Автор: John Michael Pinneo, Jonathan Forrest Garber
Принадлежит: SPINLECTRIX Inc

This invention improves the operation of rotating machinery by allowing rotation about an inertial axis without the generation of imbalance forces that arise from the use of bearings to support rotating components.

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Номер записи: 7
21-06-2012 дата публикации

Synchronous motor with permanent magnets

Номер: US20120153762A1
Автор: Francesc Cruellas, Giampiero Tassinario, Ivan FLOTATS
Принадлежит: Infranor Holding SA

The invention relates to a synchronous motor with permanent magnets comprising a rotor ( 110 ) provided with permanent magnets a winding ( 120 ) formed by overlapping coils located inside a slotless stator ( 100 ), characterized in that the winding coils ( 120 ) are regularly distributed all around the 360° of the inside surface of the stator ( 100 ) and in that the ends of the coils are designed so as the winding has the same thickness throughout and in that the ends of the winding are at least partially inside the slotless stator ( 100 ).

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Номер записи: 8
12-07-2012 дата публикации

Winding frame with magmate and stator core with the same

Номер: US20120175993A1
Автор: Jeong Cheol JANG, Kyoung Joo LEE, Wang Gyu JEONG
Принадлежит: New Motech Co Ltd

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

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Номер записи: 9
01-11-2012 дата публикации

Systems and Methods for Electric Motor Construction

Номер: US20120275942A1
Автор: John M. Knapp, Larry J. Parmeter, Sean A. Cain, Sergio A. PESEK, Thien Q. Tran
Принадлежит: Individual

Systems and methods for constructing electric motors in which a stator core includes inner and outer portions that enable slots for magnet windings to be open during construction and closed in the completed motor. One embodiment comprises a method in which an inner stator core having a plurality of slots is formed by stacking a set of laminations. The slots are open radially outward from an axis of the inner stator core and which are configured to accommodate turns of magnet wire. After the magnet wire is positioned in the open slots, an outer stator core comprising stacked laminations is positioned around the inner stator core, enclosing the slots. The inner and outer stator cores are then positioned within a housing and assembled into a downhole motor.

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Номер записи: 10
22-11-2012 дата публикации

Coil fixing member of rotating electrical machine, and rotating electrical machine

Номер: US20120293037A1
Автор: Hirokazu Uchida, Taketo Takeuchi
Принадлежит: Aisin AW Co Ltd, Toyota Motor Corp

A coil fixing member of a rotating electrical machine, wherein the rotating electrical machine includes a ring-shaped stator core, a slot formed at inner peripheral section of the stator core, a coil arranged in the slot, and wall sections defining opening on an inner periphery of the slot in a radial direction of the stator core, and wherein the coil fixing member is inserted into the slot, the coil fixing member comprising: a pressing section that presses the coil outward in the radial direction of the stator core; and engaging sections that are adjacent to both end sections of the pressing section in a peripheral direction of the stator core, that extend from the both end sections to an inward side in the radial direction of the stator core, and that include leading end sections respectively engaged with the wall sections.

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Номер записи: 11
22-11-2012 дата публикации

Brushless alternator

Номер: US20120293039A1
Автор: Hideyuki Hayashi, Tomoki Takahashi, Yasuhiko Sugitani
Принадлежит: Mitsubishi Electric Corp

A brushless alternator of the present invention includes: a yoke whose inner circumferential surface is radially opposite via an air gap to a rotor revolvably supported by brackets; a stat or supported by the brackets, for forming a magnetic circuit along with the rotor and the yoke; a bobbin for engaging with the outer circumferential surface of a thin portion of the yoke; a field coil wound around the bobbin, for producing magnetic flux; and a plate joined to the thin portion, for axially holding the bobbin; wherein the thin portion of the yoke and the other portion thereof are integrally formed in one piece using a single member.

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Номер записи: 12
06-12-2012 дата публикации

Coreless electric machine apparatus, moving body, robot and manufacturing method of the coreless electric machine apparatus

Номер: US20120306310A1
Автор: Kazuyoshi Nakamura, Kesatoshi Takeuchi
Принадлежит: Seiko Epson Corp

A coreless electric machine includes: a permanent magnet on a first member; N-phase (N≧2) air-core electromagnetic coils on a second member; and a coil back yoke on the second member, each electromagnetic coil including a conductor bundle in which a conductor is wound M times (M≧2), coil sub-aggregates are provided, each including the N electromagnetic coils of the respective N phases and in each of which a conductor bundle forming an effective coil area of a first-phase electromagnetic coil contacts a second conductor bundle forming an effective coil area of another phase electromagnetic coil, and the second conductor bundle is in an air-core portion of the first phase electromagnetic coil, and the coil sub-aggregates are arranged along the cylindrical area, in which the coil sub-aggregates do not overlap in a radiation direction of the cylindrical area, and adjacent coil sub-aggregates contact each other.

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Номер записи: 13
28-02-2013 дата публикации

Stator structure and method for manufacturing the same

Номер: US20130049520A1
Автор: Chun-Yu Hsiao, Jonq-Chin Hwang, Sheng-Nian Yeh
Принадлежит: National Taiwan University of Science and Technology NTUST

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

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Номер записи: 14
07-03-2013 дата публикации

Method of forming a power tool

Номер: US20130055554A1
Автор: Brandon L. Verbrugge, David J. Smith, Earl M. Ortt, Howard T. White, Hung T. Du, John C. Stone, Joshua F. West, Michael R. Sell, Richard T. Walter
Принадлежит: Black and Decker Inc

A method for forming an armature for an electric motor includes: securing a lamination stack having slots therein on an armature shaft, securing a commutator on one end of the armature shaft, winding magnet wires in the slots in the lamination stack and securing ends of the magnet wires to the commutator, the magnet wires having armature lead wires that extend from the slots to the commutator; and molding plastic over the magnet wires to encase at least the armature lead wires in plastic. Alternatively and/or additionally, plastic is molded over the magnet wires to retain them in the slots and to support the armature lead wires and prevent them from vibrating when the armature rotates during operation.

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Номер записи: 15
09-05-2013 дата публикации

INSULATOR, MOTOR AND METHOD FOR MANUFACTURING STATOR INCLUDING INSULATOR AND COIL

Номер: US20130113332A1
Автор: SAITO Takahiro
Принадлежит:

Provided are an insulator including a flange to prevent a coil from coming out, and a method for manufacturing a stator including an insulator and a coil, the insulator being configured not to let the flange interfere with the coil when the coil is fitted to the insulator and not to generate any damage at the insulator during the fitting. An insulator is to be fitted to a tooth of a stator on an outer periphery of which a coil is formed, and the insulator includes: a first split body to be disposed on a root side of the tooth when the insulator is fitted to the tooth and a second split body to be disposed on a distal end side of the tooth and to be fitted to the first split body thus forming the insulator The second split body includes a flange at an end face on the distal end side of the tooth so as to prevent the coil from coming out of the insulator. 1. An insulator to be fitted to a tooth of a stator , on an outer periphery of the insulator a coil being formed , the insulator comprising:a first split body to be disposed on a root side of the tooth when the insulator is fitted to the tooth, and a second split body to be disposed on a distal end side of the tooth and to be fitted to the first split body, thus forming the insulator,wherein the first split body includes a flange on the root side of the tooth to hold the coil provided therearound at a yoke side end part and a tubular main body contiguous to the flange, through which the tooth penetrates, the flange including an opening bored therein, through which the tooth penetrates, the main body including a notch bored therein, and the second split body includes a flange at an end face on the distal end side of the tooth to prevent the coil from coming out and a side piece contiguous to the flange and having a complementary shape with the notch, the side piece and the notch being fitted to each other, whereby the first and the second split bodies are fitted to each other to form the insulator.2. A motor claim 1 , ...

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Номер записи: 16
16-05-2013 дата публикации

Segmented armature motor

Номер: US20130119815A1
Автор: Kil Bong Song
Принадлежит: Individual

Provided is a segmented armature motor, which includes a plurality of armature coils which enclose a rotor having a rotary shaft, an armature which houses the armature coil and which is coupled in a segmented form, a motor frame which is coupled to the armature so as to enclose the armature, and motor covers coupled to the front and rear faces of the motor frame. The segmented armature motor is formed so that the armature coils completely enclose a pole portion of the rotor and are formed into a horseshoe shape or U shape, thereby minimizing magnetic losses of the armature and of the rotor.

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Номер записи: 17
16-05-2013 дата публикации

Canned motor for reducing cogging torque

Номер: US20130119818A1
Автор: Bong Sang Lee, Chi Myung Kim, Hark Koo Kim, Jea Woong Yi, Seung Yong Lee, Tae Sung Oh, Yong Sun Park, Yu Man Won, Yun Seok Kim
Принадлежит: Hyundai Motor Co, Kia Motors Corp, Myunghwa Ind Co Ltd

Disclosed is a canned motor for restraining a cogging torque from being generated by inserting magnetic metal pins into slot openings of a stator, thereby reducing noise and vibrations during an operation of the canned motor. The canned motor includes: a can inserted into a housing to seal a coil mounted within the housing; and a stator installed on an outer peripheral surface of the can and inserted along an inner peripheral surface of the housing. A plurality of fixing guides protrude from an outer peripheral surface of the can and metal pins are inserted into the fixing guides to be integral with the fixing guide, such that the metal pins are inserted into and attached to slot openings of the stator when inserted into the stator.

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Номер записи: 18
30-05-2013 дата публикации

ELECTRIC MOTOR FOR HIGH-TEMPERATURE APPLICATIONS

Номер: US20130134809A1
Автор: KUHN Walter, PHILLIPS Robin, STUBICAR Kornelia
Принадлежит: Maxon Motor AG

The invention relates to an electric motor for high-temperature applications. The electric motor comprises a rotor and a stator with a hollow-cylindrical, ironless stator winding of stoved-enamel wire. Furthermore, a soft-magnetic return is provided which encloses the stator winding. According to the invention, it is provided that the stator winding is supported by a hollow-cylindrical supporting sleeve lying radially inside against the stator winding 1. Electric motor for high-temperature applications , comprising:a rotor; anda stator with a hollow-cylindrical, ironless stator winding of a stoved-enamel wire and with a soft-magnetic return enclosing the stator winding, wherein the stator winding is supported by a hollow-cylindrical supporting sleeve lying radially inside against the stator winding.2. Electric motor according to claim 1 , wherein the supporting sleeve extends over a complete length of the stator winding.3. Electric motor according to claim 1 , wherein the supporting sleeve consists of a ceramic material.4. Electric motor according to claim 1 , wherein the stator winding is additionally coated with a potting compound.5. Electric motor according to claim 4 , wherein the stator winding is fixed to the supporting sleeve by the potting compound.6. Electric motor according to claim 4 , wherein the potting compound is a ceramic binder or a ceramic adhesive.7. Electric motor according to claim 1 , wherein the stator comprises:a winding support, wherein the winding support is disposed at a front face of the stator winding and consists of a ceramic material.8. Electric motor according to claim 7 , wherein the stator winding is of a polyphase design claim 7 , the stator comprising:a printed circuit board of a ceramic material for interconnecting the phase windings.9. Electric motor according to claim 8 , wherein the printed circuit board is adjacent to the winding support claim 8 , wherein the supporting sleeve extends over a complete length of the stator ...

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Номер записи: 19
30-05-2013 дата публикации

ELECTRICAL MACHINE COMPRISING A ROTOR PROVIDED WITH A WINDING FOR FACILITATING SWITCHING AND RELATED STARTER

Номер: US20130134822A1
Автор: Dupeux Benoit, Labbe Nicolas, Vauquelin Aurélien
Принадлежит:

A machine having a wound rotor () comprising a manifold () that includes a set of blades () and longitudinal notches (). Rotor () also comprises a winding () formed of a set of conductors () that each comprise two arms (), connected together by a base (). The curve, representing the electromotive force (EMF) generated by the rotor () on the basis of the angle of rotation of the rotor, is linear and steep in a switching region, and the notches () are angularly shifted relative to the blades () so that each notch () is located opposite a junction between two blades. The machine may relate to a starter fitted with the machine. 223. Machine according to claim 1 , characterized in that the abrupt linear form of the curve is characterized by a gradient (K claim 1 , K) of between 1.5 and 100 times the amplitude of the electromotive force signal (EMF) claim 1 , according to the angle for pi radians of variation of angle.3. Machine according to claim 2 , characterized in that it additionally comprises:{'b': 103', '103, 'a stator () comprising a magnetised structure with permanent or induced magnetisation which extends according to a circumference of the stator ();'}{'b': 113', '114', '102, 'brushes (, ) which are designed to permit the electrical supply to the rotor by switching of the electric current in the conductors of the rotor ();'}{'b': 103', '113', '114, 'the stator () being offset angularly relative to the brushes (, ).'}4. Machine according to claim 3 , characterized in that the angular offsetting is between 1 and 45 electric degrees.51. Machine according to claim 4 , characterized in that claim 4 , for a configuration with 6 poles and 25 notches claim 4 , the notch pitch k is equal to 3 or 5 claim 4 , and the plate pitch is equal to 8.6134102. Machine according to claim 5 , characterized in that each conductor () of the winding has radial symmetry relative to a radius of the rotor () claim 5 , known as the radius of symmetry (Rs).7. Machine according to claim 6 , ...

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Номер записи: 20
18-07-2013 дата публикации

Large scale disc-type multi-stator permanent magnet direct-drive wind power generator

Номер: US20130181455A1
Автор: Shancai Xiao, Wenjiang Shi
Принадлежит: Guodian United Power Technology Co Ltd

The present invention is a large scale disc-type multi-stator permanent magnet direct-drive wind power generator which mainly comprises a hub ( 1 ), a rotor shaft ( 5 ), a stationary shaft ( 11 ), a bracket ( 16 ) and a plurality of generator units, wherein: the stationary shaft ( 11 ) is fixed to the bracket ( 16 ); the rotor shaft ( 5 ) is fixed to the hub ( 1 ) and is rotatably mounted on the stationary shaft ( 11 ); each of the generator units comprises a disc-type winding ( 10 ) and permanent magnets ( 6 ) disposed on two sides of the disc-type winding ( 10 ); each of the disc-type windings ( 10 ) of the generator units is fixedly connected to the casing ( 8 ); each of the disc-type windings ( 10 ) comprises a plurality of rectangular spiral windings which are connected in series, and ends of the connected windings are guided via wires to an exterior of the casing to connect in series or in parallel with other disc-type windings; permanent magnets ( 6 ) are fixed on the rotor shaft ( 7 ) via rotor rotating discs ( 5 ). The present invention makes use of a disc-type multi-stator structure which fully utilizes the internal space of the rotors and increases the power density of the generator. It also reduces the longitudinal and axial sizes of the wind generators, and effectively lower generator weight and costs.

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Номер записи: 21
18-07-2013 дата публикации

SUPERCONDUCTING ELECTRICAL MACHINE HAVING A CONNECTION DEVICE FOR AXIAL EXPANSION COMPENSATION OF A WINDING FORMER

Номер: US20130181552A1
Автор: Frank Michael, Van Hasselt Peter
Принадлежит: Siemens Aktiiengesellschaft

A superconducting electrical machine includes a rotor with a rotor outer housing surrounding a winding support having a superconducting winding. The rotor has on a torque-transmitting side a first, rigid connection device between the winding support and the rotor outer housing and on the opposite side a second connection device which compensates for axial expansion of the winding support. The second connection device has an axially extending connection element which is on one end connected rigidly to the winding support and which has on the opposite free end an axially moving, radially force-fitting connection to a centering holding element of the rotor outer housing. The holding element includes a bushing through the rotor outer housing, through which the free end of the connection element of the second connection device passes. The superconducting winding is cooled and thermally insulated. 112-. (canceled)13. A superconducting electrical machine , comprising:an outer machine housing having a stator, anda rotor supported in the outer machine housing by rotor shaft parts for rotation about a rotation axis, the rotor comprising a rotor outer housing and a cooled and thermally insulated winding support having first and second opposing axial ends and carrying at least one superconducting winding,wherein a first connection device rigidly connecting the winding support to the rotor outer housing is arranged on the first axial end, and a second connection device is arranged on the second axial end between the winding support and the rotor outer housing, said second connection device compensating for changes in axial expansion in the winding support and comprising at least one axial connection element having a first end rigidly connected to the winding support and an opposite free end connected by way of a radially force-fitting and axially movable connection to at least one centering mounting element of the rotor outer housing,wherein the centering mounting element ...

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Номер записи: 22
18-07-2013 дата публикации

ELECTRIC MOTOR

Номер: US20130181556A1
Автор: Huang Dequn, Li Wenbing, Sun Xinhui, Wang Wei, Xu Ansheng
Принадлежит: Regal Beloit America, Inc.

A bobbin for supporting a winding on electric motor stator laminations includes a first flange member and a second flange member substantially parallel to the first flange member. A winding hub includes an inner hub portion coupled to the first flange member and a flared portion connecting the inner hub portion to the second flange member such that a winding span defined between the first flange member and the flared portion tapers from the second flange member to the inner hub portion. An inner surface of the winding hub defines a bobbin aperture for receiving stator laminations of the motor. A rib member is coupled to the inner surface and extends into the aperture for engaging the laminations. 1. A bobbin for supporting a winding on electric motor stator laminations , the bobbin comprising:a first flange member;a second flange member substantially parallel to the first flange member;a winding hub including an inner hub portion coupled to the first flange member and a flared portion connecting the inner hub portion to the second flange member such that a winding span defined between the first flange member and the flared portion tapers from the second flange member to the inner hub portion, an inner surface of the winding hub defining a bobbin aperture for receiving stator laminations of the motor; anda rib member coupled to the inner surface and extending into the aperture for engaging the laminations.2. The bobbin of claim 1 , wherein the aperture has a polygonal profile.3. The bobbin of claim 2 , wherein the aperture has a rectangular profile.4. The bobbin of claim 1 , wherein the aperture is configured to receive a radial tooth of a stator lamination.5. The bobbin of claim 4 , wherein the flared portion is configured to substantially conform to a profile of the stator lamination.6. The bobbin of claim 1 , further comprising an electrically conductive terminal for coupling the bobbin to a printed circuit board (PCB).7. The bobbin of claim 4 , wherein the ...

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Номер записи: 23
01-08-2013 дата публикации

Armature and motor

Номер: US20130193800A1
Автор: Tomoyoshi YOKOGAWA
Принадлежит: Nidec Corp

An insulator of an armature includes an upper resin member and a lower resin member. Each of the upper and lower resin members includes decreased thickness portions. Axial positions of the decreased thickness portions of the upper and lower resin members are arranged to overlap at least partially with each other. Each of the upper and lower resin members further includes a rib arranged to project from a corresponding one of the decreased thickness portions. The rib improves the strength of the corresponding decreased thickness portion and reduces the likelihood that any of the decreased thickness portions of the upper and lower resin members will be damaged when the two members are fitted to each other.

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Номер записи: 24
22-08-2013 дата публикации

ELECTRIC MACHINE AND STATOR FOR SAME

Номер: US20130214633A1
Автор: Dajaku Gurakuq
Принадлежит: FEAAM GmbH

The invention relates to a stator for an electric machine, comprising at least two sub-stators having respective grooves for receiving windings. The groove openings of the two sub-stators are displaced in relation to each other in the circumferential direction. The invention further relates to an electric machine comprising the stator. The two sub-stators are combined with each other axially and/or in the circumferential direction.

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Номер записи: 25
29-08-2013 дата публикации

Electrical machine coil insulation system and method

Номер: US20130221790A1
Автор: David N. Scherer, Donald Dolence, Mark D. Nikrandt, Ray Thomas Reid
Принадлежит: Integrated Power Services LLC

An insulation system and method are disclosed for insulating formed coils of electrical machines, such as motors and generators. The system includes strand/turn insulation that may include one or more layers of different materials, depending upon the dielectric requirements. A ground wall insulation is applied over the group of turns. The coil may be sized in a slot cell section. Additional insulation layers are provided, including a slot corona suppression insulation that extends just beyond stator slots, a voltage grading layer, and an armor layer. The resulting system is highly adaptable to different machine designs and ratings, and affords superior resistance to degradation.

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Номер записи: 26
03-10-2013 дата публикации

WINDING FRAME WITH MAGMATE AND STATOR CORE WITH THE SAME

Номер: US20130257217A1
Автор: JANG Jeong Cheol, Jeong Wang Gyu, Lee Kyoung Joo
Принадлежит:

The present invention relates to a stator core including at least two or more stator core-continuous bodies each formed by coupling at least two or more unit cores to each other, each unit core consisting of a tooth portion having a coupling slot and a coupling projection formed along both ends thereof and connected to adjacent unit core by means of a connection portion formed at each of both end portions of the tooth portion, wherein the at least two or more stator core-continuous bodies are fitting-connected to each other by means of the coupling slots formed at one side ends thereof and the coupling projections formed at the other side ends thereof to form the stator core having a round shape. 1. A winding frame comprising:an outer peripheral portion having a connection portion formed at each of both ends thereof;a winding portion; andan inner peripheral portion.2. The winding frame according to claim 1 , wherein the outer peripheral portion has at least one or more coil introducing parts formed thereon.3. The winding frame according to claim 1 , wherein the outer peripheral portion has coil guides by which coils are not brought into contact with one another.4. The winding frame according to claim 1 , wherein the outer peripheral portion has a PCB guide protrusion formed on the top portion thereof so as to couple a PCB thereto.5. The winding frame according to claim 1 , wherein the inner peripheral portion has a PCB coupling protrusion formed on the top portion thereof so as to couple the PCB thereto.6. A winding frame-continuous body having at least one or more winding frames according to connected one after another.7. The winding frame-continuous body according to claim 6 , wherein at least one or more outer peripheral portions of the winding frames have magmates disposed for coil connection. The present application is a Continuation Application of U.S. patent application Ser. No. 13/422,543 (filed on Mar. 16, 2012) under 35 U.S.C. §120, which claims the ...

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Номер записи: 27
10-10-2013 дата публикации

Molded structural body and motor having same

Номер: US20130264896A1
Автор: Kenji Kondo, Masanori Morita, Seiji Kurozumi
Принадлежит: Panasonic Corp

A molded structural body is obtained by mold forming of a magnet coil wound on an iron core with the use of a molding resin containing at least a thermosetting resin, a thermoplastic resin incompatible with the thermosetting resin, and a metal hydrate having an electrical insulation property, wherein the molding resin has a thermal conductivity of 1.5 W/m·K or more and an excellent frame retardancy of UL94V-0. The molded structural body can achieve a small-size, thin, and high-power device with flame retardancy achieved, without containing any substances with high environmental burdens in the molding resin.

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Номер записи: 28
24-10-2013 дата публикации

SYSTEM AND METHOD FOR ENHANCED MAGNET WIRE INSULATION

Номер: US20130278117A1
Автор: Johnson Keith, Leamy Brett, Lunk David, Parmeter Larry
Принадлежит: SUMMIT ESP, LLC

A system and method for enhanced magnet wire insulation is described. The system of the invention provides an enhanced insulation for magnet wire that is capable of withstanding high temperatures and provides a seal against water that is needed in electric submersible pump (ESP) applications. The enhanced insulation of the system of the invention provides the dielectric advantages of polyimide tape, such as Kapton tape, while also including the advantages of organic polymer thermoplastic insulation that prevents the delaminating at high temperatures that may occur in pumping applications using a variety of electrical submersible motors. 1. An electric submersible pump system employing an enhanced magnet wire insulation , the system comprising:a pump;an induction motor suitable for use as an electric submersible motor, the induction motor coupled to the pump so as to turn the pump;a magnet wire windingly coupled to the electric submersible motor, the magnet wire comprising enhanced insulation suiting it for use in temperatures of about and above 550° Fahrenheit, the enhanced insulation further comprising a layer of polyimide tape coupled to the magnet wire and the layer of polyimide tape further encased within a layer of organic polymer thermoplastic insulation.2. The system of claim 1 , wherein the polyimide tape is poly(4 claim 1 ,4′-oxydiphenylene-pyromellitimide) tape.3. The system of claim 1 , wherein the organic polymer thermoplastic insulation is PEEK.4. A method of making an enhanced magnet wire insulation suited for an electric submersible pump application claim 1 , the method comprising:drawing copper magnet wire to size;cleaning the copper magnet wire;pulling the copper magnet wire through a polyimide wrap machine to produce wrapped copper magnet wire;redrawing the wrapped copper magnet wire through an extrusion mold, applying molten organic polymer thermoplastic to the wrapped copper magnet wire to produce enhanced magnet wire;winding the enhanced magnet ...

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Номер записи: 29
07-11-2013 дата публикации

POLE PIECE AND YOKE CONNECTION FOR DC MOTOR

Номер: US20130293053A1
Автор: Drinkwater William Edwin, Hittie, JR. William C., Rubbo Michael J., Sullivan Timothy H.
Принадлежит: Advanced Motors & Drives, Inc.

A motor including a rotor and a field frame is provided. The field frame comprises a generally annular yoke, a plurality of generally arcuately spaced apart pole pieces extending from the yoke, and a winding extending at least in part about the pole pieces. The yoke includes a plurality of pole piece connection locations. Each of the pole pieces is associated with a corresponding one of the connection locations. The pole pieces and the yoke are connected at the pole piece connection locations in an interlocking manner. 1. A motor including a rotor and a field frame , said field frame comprising:a generally annular yoke;a plurality of generally arcuately spaced apart pole pieces extending from the yoke; anda winding extending at least in part about the pole pieces, a generally radially extending body having a first radial body end and a second radial body end, and', 'a shoe extending generally circumferentially adjacent the first radial body end,', 'said second radial body end including a pair of arms defining a yoke-receiving recess therebetween,, 'each of said pole pieces including'} 'a generally radially extending yoke projection located circumferentially between the arm-receiving recesses,', 'said yoke including a plurality of pole piece connection locations, each of which includes a pair of spaced apart, generally radially-extending arm-receiving recesses, and'}each of the pole pieces being associated with a corresponding one of the connection locations, with the arms being received in respective ones of the arm-receiving recesses and the yoke projection being received in the yoke-receiving recess.2. The motor as claimed in claim 1 ,each of said arms being flared.3. The motor as claimed in claim 2 ,said arms being flared toward one another.4. The motor as claimed in claim 2 ,each of said arms including opposite first and second radial arm ends,each of said arms being flared toward one of the radial arm ends.5. The motor as claimed in claim 4 ,said second radial ...

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Номер записи: 30
14-11-2013 дата публикации

METHOD OF FORMING A POWER TOOL

Номер: US20130300221A1
Автор: Du Hung T., Ortt Earl M., Sell Michael R., Smith David J., Stone John C., Verbrugge Brandon L., Walter Richard T., West Joshua F., White Howard T.
Принадлежит:

An electric motor has a stator in which an armature is disposed. The armature has a shaft. One of the stator or the armature includes a lamination stack having slots in which magnet wires are wound, the magnet wires having a coating of heat activated adhesive. There is further provided plastic molded around the magnet wires with heat of the plastic activating the heat activated adhesive on the magnet wires during molding of the plastic to bond the magnet wires together. 1. An electric motor , comprising:a stator;an armature received in the stator, the armature having a shaft and a lamination stack on the shaft, the lamination stack having a plurality of slots;magnet wires wound in coils in slots of the lamination stack, the magnet wires having a coating of heat activated adhesive; andplastic molded around the magnet wires with heat of the plastic activating the heat activated adhesive on the magnet wires during molding of the plastic to bond the magnet wires together.2. The apparatus of claim 1 , wherein the plastic includes thermally conductive plastic.3. The apparatus of claim 2 , wherein the heat activated adhesive claim 2 , upon activation claim 2 , bonds the coils of magnet wires into mechanically solid coils to reduce movement of the coils and to improve heat transfer out of the magnet wires.4. The apparatus of claim 1 , wherein the plastic is molded around the magnet wires at a pressure sufficient to deform individual magnet wires into polygonal shapes.5. The apparatus of claim 1 , wherein the activation of the heat activated adhesive on the magnet wires bonds the coils of magnet wires onto mechanically solid coils within the plastic to reduce movement of the coils and improve thermal transfer of heat out of the magnet wires.6. A method of forming an armature for an electric motor claim 1 , comprising:winding magnet wires having a coating of heat activated adhesive thereon in a plurality of slots in a lamination stack on a shaft to form coils; andmolding hot ...

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Номер записи: 31
14-11-2013 дата публикации

Apparatus to support superconducting windings in a rotor of an electromotive machine

Номер: US20130300239A1
Автор: Raul Ricardo Rico, Robert L. Murphy
Принадлежит: Siemens Energy Inc

An apparatus (structure) is provided to support a superconductor winding ( 61 ) of an electromotive machine. An assembly ( 110 ), such as a cradle, may define a recess to receive the superconductor winding. An elongated loop ( 74 ) provides radial support to the winding. Loop 74 may be made of a material resistant to heat flow, such as a fiber-reinforced polymer (FRP) material. Assembly ( 110 ) may be arranged to support elongated loop ( 74 ) at a distal end ( 78 ) of the loop. A base assembly ( 130 ) may be arranged to anchor the elongated loop at a proximate end ( 76 ) of the loop. A support structure 120 may be arranged to provide tangential load support to the assembly.

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Номер записи: 32
14-11-2013 дата публикации

EXPANSION SHEET FOR ROTARY ELECTRIC MACHINE, STATOR FOR ROTARY ELECTRIC MACHINE USING THE SAME, AND MANUFACTURING METHOD OF STATOR FOR ROTARY ELECTRIC MACHINE

Номер: US20130300248A1
Автор: Ishida Takeshi, TSUKAMOTO Takahiro
Принадлежит:

In an expansion sheet for a rotary electric machine that has a thermal expansion property and is to be arranged between a core and a coil conductor in a slot in the rotary electric machine, in which the coil conductor is housed in the slot formed in the core, the expansion sheet has a first surface and a second surface and includes: a first surface-side portion; and a second surface-side portion that is closer to the second surface than the first surface-side portion, wherein an amount of volume increase, caused by heating, of the first surface-side portion is higher than an amount of volume increase, caused by the heating, of the second surface-side portion. 1. An expansion sheet for a rotary electric machine that has a thermal expansion property and is to be arranged between a core and a coil conductor in a slot in the rotary electric machine , in which the coil conductor is housed in the slot formed in the core , the expansion sheet having a first surface and a second surface and comprising:a first surface-side portion; anda second surface-side portion that is closer to the second surface than the first surface-side portion, whereinan amount of volume increase, caused by heating, of the first surface-side portion is higher than an amount of volume increase, caused by the heating, of the second surface-side portion.2. The expansion sheet according to claim 1 , whereinthe first surface is a surface to be positioned on a side, on which the coil conductor is located, andthe second surface is a surface to be positioned on a side, on which the core is located.3. The expansion sheet according to claim 1 , whereinthe first surface-side portion of the expansion sheet includes a first surface-side expansion layer having a sheet center portion and a sheet edge portion that is provided at an outer periphery of the sheet center portion, andan amount of volume increase, caused by the heating, of the sheet edge portion is lower than an amount of volume increase, caused by the ...

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Номер записи: 33
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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Номер записи: 34
21-11-2013 дата публикации

DISK MOTOR, ELECTRIC WORKING MACHINE INCLUDING DISK MOTOR AND METHOD FOR MANUFACTURING DISK MOTOR

Номер: US20130307367A1
Автор: TANIMOTO Hideyuki, Yoshida Kenichirou
Принадлежит: HITACHI KOKI CO., LTD.

A disk motor including: a rotor; a stator; an output shaft concentrically fixed to the rotor; at least one coil disk which is provided to one of the rotor or the stator, a coil pattern which includes a plurality of radial patterns or radial pattern groups extending outwards in a radial direction from a center part of the coil disk being formed on at least one surface of the coil disk; an electric current supply portion which supplies electric current to the coil pattern; a magnetic flux generating portion which is provided to another of the rotor or the stator and faces the coil pattern; and an intermediate pattern which is formed between adjacent radial patterns or adjacent radial pattern groups on the coil disk. 1. A disk motor comprising:a rotor;a stator;an output shaft concentrically fixed to the rotor;at least one coil disk which is provided to one of the rotor or the stator, a coil pattern which includes a plurality of radial patterns or radial pattern groups extending outwards in a radial direction from a center part of the coil disk being formed on at least one surface of the coil disk;an electric current supply portion which supplies electric current to the coil pattern;a magnetic flux generating portion which is provided to another of the rotor or the stator and faces the coil pattern; andan intermediate pattern which is formed between adjacent radial patterns or adjacent radial pattern groups on the coil disk.2. The disk motor according to claim 1 ,wherein the coil disk includes at least two coil disks which are bonded to each other,wherein the intermediate pattern includes a reinforcing pattern, andwherein the surface of the coil disk on which the reinforcing pattern is formed constitutes a bonding surface with another coil disk.3. The disk motor according to claim 2 ,wherein the reinforcing pattern includes small patterns which are electrically insulated from each other.4. The disk motor according to claim 3 ,wherein each of the small patterns are ...

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Номер записи: 35
21-11-2013 дата публикации

Motor and Fuel Pump

Номер: US20130309109A1
Автор: POON Ping Wo, TO Chi Hang, WU Yiu Chung
Принадлежит: JOHNSON ELECTRIC S.A.

A motor includes a stator and a rotor disposed in the stator. The stator includes a housing and a plurality of magnets attached to an inner surface of the housing. The rotor includes a shaft, with a rotor core and a commutator. Windings are wound on the rotor core and terminated on the commutator. The rotor core includes a plurality of teeth extending outwardly about which the windings are wound. Radially outer surfaces of the teeth are coated with a Zn-Al film. 1. An electric motor comprising:a stator comprising a housing, and a plurality of magnets attached to an inner surface of said housing; anda rotor disposed in said housing and comprising a shaft, a rotor core fixed to the shaft and including a plurality of teeth extending outwardly, a commutator fixed to the shaft, and windings wound on the rotor core and connected to the commutator,wherein radially outer surfaces of the teeth are coated, with a Zn-Al film.2. The motor of claim 1 , wherein said Zn-Al film comprises a mixture of adhesive claim 1 , Zn and Al.3. The motor of claim 2 , wherein said Zn and Al are in the form of flakes.4. The motor of claim 1 , wherein the Zn-Al film is applied by dip-spin and/or spray technique.5. The motor of claim 1 , wherein the Zn-Al film has a thickness in a range of 5 μm to 30 μm.6. The motor of claim 1 , wherein the Zn-Al film has a thickness in a range of 8 μm to 15 μm.7. The motor of claim 1 , wherein at least one of an inner surface and an outer surface of the housing of the stator is coated with a Zn-Al coating.8. A motor claim 1 , comprising:a stator comprising a housing, a stator core press fit in the housing, the stator core comprising a plurality of inwardly extending teeth, and windings wound on the stator core; anda rotor disposed in said stator and comprising a shaft, a rotor core fixed to the shaft, and a plurality of magnets fixed to the rotor core,wherein a radially inner surface of the teeth are coated with a Zn-Al film.9. The motor of claim 8 , wherein the ...

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Номер записи: 36
28-11-2013 дата публикации

Electric motor and fuel pump using the same

Номер: US20130315759A1
Автор: Kiyoshi Nagata, Masaya Ootake, Tetsuo Hayakawa
Принадлежит: Denso Corp

An electric motor has multiple core portions, multiple bobbins covering the respective core portions, and multiple coil windings wound on the respective core portions and bobbins. Each of the bobbins has a first and a second circumferential forward ends, at which a first and a second holding portions are formed. The first holding portion holds a winding-start portion and the second holding portion holds a winding-end portion. The winding-start portion is prevented from being brought into contact with the winding-end portion and main winding portion of the coil winding between the winding-start portion and the winding-end portion.

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Номер записи: 37
26-12-2013 дата публикации

POWER TOOL WITH MOTOR HAVING A MULTI-PIECE STATOR

Номер: US20130342042A1
Автор: Benton James C., Du Hung T., Hogan Kevin M., Maid Spencer G., Mannarino Frank A., McCormick Garrett P., Moll Shane Ashley, Ortt Earl M., Verbrugge Brandon L., Wang Ren H., Zemlock Michael A., Zhang Jiaqi
Принадлежит: BLACK & DECKER INC.

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

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Номер записи: 38
02-01-2014 дата публикации

APPARATUS TO SUPPORT SUPERCONDUCTING WINDINGS IN A ROTOR OF AN ELECTOMOTIVE MACHINE

Номер: US20140001913A1
Автор: Cechak Tomas, Lekes Radek, Rico Raul Ricardo, Skacel Pavel
Принадлежит:

An apparatus (structure) is provided to support a superconductor winding () of an electromotive machine. One or more elongated loops () and appropriate support structure () may be arranged to provide radial and tangential support to the superconducting winding (). The elongated loops may be made of a material substantially resistant to heat flow. An axially-extending base assembly () may be arranged to anchor loops () with respect to the rotor core at a proximate end () of the elongated loops. A cradle () may be configured to define a recess () to receive the superconductor winding and to support the elongated loops at a distal end () of the loops. 1. An apparatus to support a superconductor winding in a spaced apart relationship from a rotor core of an electromotive machine , comprising:a cradle configured to define a recess to receive the superconductor winding;at least a first elongated loop and at least a second elongated loop each arranged at a respective angle relative to a radial axis to provide radial and tangential support to the cradle, wherein the elongated loops comprise a respective material substantially resistant to heat flow, wherein the cradle is arranged to support said at least first loop and said at least second loop at respective distal ends of the elongated loops; andan axially-extending base assembly arranged to anchor said at least first loop and said at least second loop with respect to the rotor core at respective proximate ends of the elongated loops, which proximate ends are respectively located on first and second mutually opposite sides of the radial axis.2. The apparatus of claim 1 , wherein the cradle comprises an arch-shaped exterior surface configured to receive the respective distal ends of the elongated loops.3. The apparatus of claim 1 , further comprising a pedestal arranged to close a bottom side of the recess and support the superconducting winding in the cradle.4. The apparatus of claim 1 , wherein the axially-extending base ...

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Номер записи: 39
09-01-2014 дата публикации

CORE WINDING METHOD AND STATOR

Номер: US20140009028A1
Автор: Akita Hiroyuki, SHIJO Daisuke, Tanaka Takahiro
Принадлежит: Mitsubishi Electric Corporation

In a method for winding a core having an arch-like yoke portion, a tooth portion, and a tooth end portion by revolving a nozzle for feeding a conductive wire, when winding is performed in a bow-like area surrounded by an inner circumferential arc of the yoke portion and the chord thereof, upon winding on an end surface of the core, the nozzle moves so as to draw a convex-shaped trajectory proceeding from the tooth end portion side toward the yoke portion side with reference to the chord of the bow-like area, and upon winding on a side surface of the core, the nozzle returns from the yoke portion side to the tooth end portion side with reference to the chord of the bow-like area, and then moves along the side surface of the core. 1. A core winding method for , by revolving a nozzle for feeding a conductive wire , winding the conductive wire on a core having: an arch-like yoke portion; a tooth portion protruding radially inward from the center portion of the yoke portion; and a tooth end portion connected to the end of the tooth portion , the core winding method comprising the steps of , in the case of performing winding in a bow-like area surrounded by an arc of the inner circumference of the yoke portion and a chord of the arc:upon winding on an end surface of the core, winding the conductive wire by moving the nozzle so as to draw a convex-shaped trajectory proceeding from the tooth end portion side toward the yoke portion side with reference to the chord of the bow-like area; andupon winding on a side surface of the core, winding the conductive wire by returning the nozzle from the yoke portion side to the tooth end portion side with reference to the chord of the bow-like area, and then moving the nozzle along the side surface of the core.2. The core winding method according to claim 1 , wherein the conductive wire is wound on the core on which an insulator has been attached claim 1 , the insulator having: a winding frame portion positioned at least on an end ...

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Номер записи: 40
16-01-2014 дата публикации

INTEGRATED PHASE CONNECTION ISOLATOR WITH INDIVIDUAL PHASE ISOLATOR

Номер: US20140015358A1
Автор: Chamberlin Bradley D., Wan Koon Hoong
Принадлежит:

A stator assembly includes a coil isolator having a first flange, a phase separator, and a living hinge connecting the first flange and the phase separator, the coil isolator structured for enclosing a stator lamination stack and for winding a coil thereon in electrical isolation from the stack, the phase separator being radially closeable for enclosing a portion of the coil within the coil isolator. A method of forming a stator includes placing an isolator onto a lamination stack segment, winding a coil onto the isolator, folding a phase separator of the isolator to enclose a portion of the coil, and placing a plurality of bus bars onto the phase separator in physical partition from one another. A method of insulating a phase bus from a stator coil includes forming a coil insulator having a bobbin, a phase separator, and a living hinge coupling the bobbin to the phase separator. 1. A stator assembly of an electric machine , comprising a coil isolator having a first flange , a phase separator , and a living hinge connecting the first flange and the phase separator , wherein the coil isolator is structured for enclosing a portion of a stator lamination stack and for winding a coil thereon in electrical isolation from the stack , the phase separator being radially closeable for enclosing a portion of the coil within the coil isolator.2. The stator assembly of claim 1 , further comprising a latch structured for securing the phase separator in a closed position.3. The stator assembly of claim 1 , wherein the living hinge is formed as a series of individual living hinges.4. The stator assembly of claim 3 , wherein respective dimensions of the individual living hinges vary according to a force distribution profile for the series.5. The stator assembly of claim 4 , wherein the force distribution profile is based on temperature-related properties of hinge materials.6. The stator assembly of claim 4 , wherein the force distribution profile is based on at least one of ...

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Номер записи: 41
23-01-2014 дата публикации

RELUCTANCE MOTOR

Номер: US20140021809A1
Автор: Ayers Curtis W., Burress Timothy A.
Принадлежит:

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

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Номер записи: 42
30-01-2014 дата публикации

MAGNETIC WEDGE

Номер: US20140028145A1
Автор: Calonico Antonio, LUISE Fabio
Принадлежит:

A magnetic wedge comprises a first element of magnetic material extending longitudinally along a first direction and second element of non-magnetic material coupled to the first element and having at least one skew portion relative to the longitudinal extension direction of the wedge. 1. Magnetic wedge for closing slots of an electrical rotating machine , said magnetic wedge extending longitudinally by a first length , between two ends , along a first direction parallel to the axis of rotation of the electrical rotating machine and extending crosswise to the first direction between two side edges , said magnetic wedge comprising:a first portion of magnetic material;a second portion of non-magnetic material coupled to said first portion, whereinsaid wedge has a first surface intended to face the slots of the electrical rotating machine, when said wedge is placed to close the slots, and an opposite second surface intended to face the air gap of the electrical rotating machine, when said wedge is placed to close the slots,said second portion comprises at least one skew portion longitudinally extended along a second direction which is skew relative to the first direction, by a second length equal to at least 70% of the distance between said two ends, measured along the second direction,wherein one of said first and second portion extends seamlessly between said two side edges.2. Magnetic wedge according to claim 1 , wherein said first and second portion are shaped so that at least one horizontal plane extending between said two side edges crosses only one of said first and second portion.3. Magnetic wedge according to claim 2 , wherein said at least one horizontal plane is defined by at least one of said first and second surface.4. Magnetic wedge according to claim 1 , wherein said first and second portion are shaped so that at least one vertical plane extending between said first and second surface crosses both said first and second portion.5. Magnetic wedge according ...

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Номер записи: 43
06-02-2014 дата публикации

Motor stator with reduced coil configuration

Номер: US20140035418A1
Автор: Gary E. Horst
Принадлежит: Nidec Motor Corp

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

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Номер записи: 44
13-02-2014 дата публикации

Stator and Rotating Electric Machine

Номер: US20140042862A1
Автор: ISHIGAMI Takashi, Matsunobu Yutuka
Принадлежит: HITACHI AUTOMOTIVE SYSTEMS LTD

A stator includes: a stator core with N pieces of slots ranging along an axial direction, which are formed side-by-side along a circumferential direction; and a stator winding installed in the slots at the stator winding. The stator winding includes a plurality of winding groups, each made up with N pieces of lap-wound coils each formed by winding a conductor wire a plurality of times. The winding groups are disposed in a plurality of layers set side-by-side along a radial direction at the stator core. One coil side at each of the lap-wound coils is inserted in a specific slot on an inner side along the radial direction in a specific layer and another coil side of the lap-wound coil is inserted in another slot on an outer side along the radial direction in the specific layer. 1. A stator , comprising:a stator core with N pieces of slots ranging along an axial direction, which are formed side-by-side along a circumferential direction; anda stator winding installed in the slots at the stator winding, wherein:the stator winding includes a plurality of winding groups, each made up with N pieces of lap-wound coils each formed by winding a conductor wire a plurality of times;the winding groups are disposed in a plurality of layers set side-by-side along a radial direction at the stator core; andone coil side at each of the lap-wound coils is inserted in a specific slot on an inner side along the radial direction in a specific layer and another coil side of the lap-wound coil is inserted in another slot on an outer side along the radial direction in the specific layer.2. A stator according to claim 1 , wherein:a sectional area of coil sides in the lap-wound coils disposed in a specific layer at the stator core is different from a sectional area of coil sides in the lap-wound coils disposed in another layer different from the specific layer at the stator core.3. A stator according to claim 1 , wherein:a number of turns with which the conductor wire forming the coil sides in ...

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Номер записи: 45
06-03-2014 дата публикации

STATOR OF ROTATING ELECTRIC MACHINE

Номер: US20140062230A1
Автор: AKIMOTO Akito, ISHIZUKA Atsuo, MORI Akio
Принадлежит: Denso Corporation

A stator includes an annular stator core having a plurality of slots arranged in the circumferential direction at predetermined intervals and a stator coil formed of a plurality of electric conductor wires mounted on the stator core. Each of the electric conductor wires has a plurality of in-slot portions received in the slots of the stator core and a plurality of turn portions that connect, on the outside of the slots, adjacent pairs of the in-slot portions. The stator coil has first and second coil end parts and that respectively protrude axially outward from a pair of axial end faces of the stator core. At each of the coil end parts, the turn portions of the electric conductor wires are stacked in a radial direction of the stator core, and the axial heights h of the turn portions are set so as to gradually increase from the radially inside to the radially outside. 1. A stator of a rotating electric machine , the stator comprising an annular stator core having a plurality of slots arranged in a circumferential direction at predetermined intervals and a stator coil formed of a plurality of electric conductor wires mounted on the stator core ,whereinthe stator coil has a pair of coil end parts that respectively protrude axially outward from a pair of axial end faces of the stator core,at each of the coil end parts, the electric conductor wires are stacked in a radial direction of the stator core,for each radially-adjacent pair of the electric conductor wires, an axial height of the radially outer electric conductor wire is set to be equal to or greater than that of the radially inner electric conductor wire, andthe axial height of the radially outermost electric conductor wire is set to be greater than that of the radially innermost electric conductor wire, each of the electric conductor wires has a plurality of in-slot portions received in the slots of the stator core and a plurality of turn portions that connect, on the outside of the slots, adjacent pairs of the ...

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Номер записи: 46
13-03-2014 дата публикации

Magnet alternator assembly

Номер: US20140070656A1
Автор: Abraham Edquiban Ballena
Принадлежит: Individual

An alternator assembly including a stator disk having at least one slot positioned around a circumference of the stator disk. The slot functions to accommodate a removable stator coil spool. The stator coil spool is inserted into and extracted out from the stator disk through the slot.

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Номер записи: 47
20-03-2014 дата публикации

Robot Drive With Passive Rotor

Номер: US20140077637A1
Автор: Christopher Hofmeister, Dennis Poole, Martin Hosek, Tuan Ha
Принадлежит: Persimmon Technologies Corp

A substrate transport apparatus including a drive section and a first movable arm assembly. The drive section includes a first motor. The first motor includes a stator and a passive rotor. The first movable arm assembly is connected to the first motor. The substrate transport apparatus is configured for the first movable arm assembly to be positionable in a vacuum chamber with the passive rotor being in communication with an environment inside the vacuum chamber.

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Номер записи: 48
27-03-2014 дата публикации

Method of producing an electrical insulation system for an electric machine

Номер: US20140083592A1
Автор: Friedhelm Pohlmann, Peter GRÖPPEL, Stefan Kempen, Steffen Lang, Thomas Hildinger
Принадлежит: SIEMENS AG, VOITH PATENT GMBH

A method for producing an electrical insulation system of a conductor of a winding head of an electric machine is provided. The method includes applying a porous main insulation paper to the conductor of the electrical machine; applying a porous overhang corona shielding paper to the main insulation paper, as a result of which an insulation blank of the insulation system is formed; impregnating the insulation blank with a base resin, wherein the overhang corona shielding paper and the main insulation paper have a porosity such that the insulation blank is impregnated by the base resin to form a homogeneous base resin matrix; and completing the insulation system by curing the base resin.

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Номер записи: 49
03-04-2014 дата публикации

ELECTRIC MOTOR

Номер: US20140091670A1
Автор: Chun Kwangwook, Han Seungdo, SHIN Sunguk
Принадлежит:

An electric motor includes a stator, a case surrounding the stator, and a rotor rotatably disposed with respect to the stator. The rotor includes a rotor core having a plurality of poles and slots, a shaft coupled to a central portion of the rotor core, a rotor coil wound on the rotor core, and coil supporting members provided at the rotor core. The coil supporting members are configured to support the rotor coil such that the rotor coil is prevented from being separated from the rotor core in a radial direction when the rotor rotates. Under such a configuration, a short-circuit of the rotor coil due to a centrifugal force when the rotor rotates, can be prevented. 1. An electric motor , comprising:a stator;a case surrounding the stator; anda rotor rotatably disposed with respect to the stator, a rotor core having a plurality of poles and slots;', 'a shaft coupled to a central portion of the rotor core;', 'a rotor coil wound on the rotor core; and', 'coil supporting members provided at the rotor core, to support the rotor coil such that the rotor coil is prevented from being separated from the rotor core in a radial direction when the rotor rotates., 'wherein the rotor includes2. The electric motor of claim 1 , wherein the coil supporting members are coupled to the rotor core.3. The electric motor of claim 1 , wherein the coil supporting members include:a hub coupled to the shaft;a plurality of spokes extending from the hub in a radial direction; andsupporting portions protruding from the ends of the spokes in an axial direction, to support coil ends of the rotor coil.4. The electric motor of claim 3 , wherein each pole of the rotor core is provided with a pole shoe extending in a circumferential direction claim 3 ,wherein the pole shoe of the rotor core has a thickness smaller than that of the supporting portion in a radial direction, andwherein a spacer having a thickness corresponding to the difference between the two thicknesses of the supporting portion and the ...

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Номер записи: 50
03-04-2014 дата публикации

Direct Drive Segmented Generator

Номер: US20140091673A1
Автор: ANBARASU Ramasamy, Neumann Raphael, Osama Mohamed
Принадлежит: VESTAS WIND SYSTEMS A/S

The present invention relates a stator segment for an electrical machine, comprising a plurality of windings, each winding having a winding starting and ending point, and a stator yoke with a plurality of stator slots for receiving at least one stator winding, said segment having a first side and a second side. At least one winding having its starting point at the first side, and its ending point at the first side of the segment, the at least one winding is received in one or more stator slots. At least one other winding having its starting point at the second side, and its ending point at the second side of the segment, the at least one other winding is received in one or more stator slots 114-. (canceled)15. A stator segment for an electrical machine , comprising a plurality of windings , each winding having a winding starting and ending point , and a stator yoke with a plurality of stator slots for receiving at least one stator winding , said segment having a first side and a second side ,at least one winding having its starting point at the first side, and its ending point at the first side of the segment, wherein the at least one winding is received in one or more stator slots, andat least one other winding having its starting point at the second side, and its ending point at the second side of the segment, wherein the at least one other winding is received in one or more stator slots.16. A stator segment for an electrical machine according to claim 15 , wherein the plurality of ending points connecting at a common point claim 15 , and where the at least one winding ending at the second side is extended to connect with the other ending points.17. A stator segment for an electrical machine according to claim 16 , wherein the at least one winding ending at the second side is extended along a rear side of the segment.18. A stator segment for an electrical machine according to claim 15 , wherein a number of plurality of windings is three.19. A stator segment for an ...

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Номер записи: 51
01-01-2015 дата публикации

Electrical machine with a high level of efficiency

Номер: US20150001970A1
Автор: Daniel FIEDERLING, JIN Xu, Leszek Grzegorz SAWCZUK, Sunny Zhang
Принадлежит: Brose Fahrzeugteile SE and Co KG

An electrical machine is provided, in particular an electric motor having a stator and also a rotor which is mounted such that it can rotate about a rotor axis and has a rotor body, wherein permanent magnets are arranged in holders of the rotor body. The permanent magnets being composed of a mixed material, wherein the mixture is set in such a way that the mixed material has a remanence field strength Br of between 0.6 Tesla and 1 Tesla and a coercive field strength Hcj of between 1300 and 2500 KA/m. Permanent magnets or composite bodies can be arranged in holders, and the permanent magnets or composite bodies can have a contour, the cross-sectional area of said contour which is situated perpendicular to the longitudinal axis being reduced within the respective holder in the direction of the radially further outer end of said holder.

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Номер записи: 52
01-01-2015 дата публикации

ELECTRICAL MACHINE

Номер: US20150001977A1
Автор: KOCH Matthias, STEINSHORN Axel, ZHANG Sunny
Принадлежит:

An electrical machine, in particular an electric motor of a motor vehicle, having a stator and having a rotor which has a rotation axis. An electrical machine can be a brushless electric motor (DC motor) or a synchronous machine, but also a generator. The stator or the rotor has an electromagnet structure, and the other has a permanent-magnet structure which comprises a first quantity of permanent magnets and a second quantity of permanent magnets. At at least the operating temperature (T), the magnetic coercive field strength (Hcji) of the first quantity is greater than the magnetic coercive field strength (Hcj2) of the second quantity. Further, two methods for producing hybrid magnets are provided. 1. An electrical machine comprising:a stator;a rotor that has an axis of rotation, whereby the stator and rotor have either an electromagnet structure and the other has a permanent magnet structure, which comprises a first set of permanent magnets and a second set of permanent magnets,wherein at, at least, the operating temperature, a magnetic coercive field strength of the first set is greater than a magnetic coercive field strength of the second set.2. The electrical machine according to claim 1 , wherein at claim 1 , at least claim 1 , the operating temperature claim 1 , a remanence of the second set is greater than a remanence of the first set.3. The electrical machine according to claim 1 , wherein the permanent magnet structure has at least one or between 8 and 10 hybrid magnets claim 1 , which is/are arranged substantially tangentially to the axis of rotation claim 1 , wherein each hybrid magnet comprises a permanent magnet of the second set and a permanent magnet of the first set claim 1 , which bounds the hybrid magnet in the arrangement direction at least on one side.4. The electrical machine according to claim 3 , wherein the permanent magnet of the second set of each hybrid magnet is surrounded on both sides in the arrangement direction by the permanent ...

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Номер записи: 53
01-01-2015 дата публикации

Corona Shield

Номер: US20150001983A1
Автор: Dos Santos Goncalves Camila, Fiorini Cordeiro Joao, Hildinger Thomas, Jacob Da Silva Marcelo, Kodding Ludger
Принадлежит: VOITH PATENT GMBH

The invention relates to a corona shield for an electrical conductor in a rotating electric machine, comprising an outer corona shield and a terminal corona shield which is mounted adjacent to the outer corona shield, on a high-voltage insulation of the electrical conductor, and also comprising a strip that has a limited electrical conductivity, is arranged around the high-voltage insulation of the electrical conductor, and is impregnated with a resin. The invention is characterized in that a paint having a limited electrical conductivity is arranged at least between the high-voltage insulation and the strip, in the transition zone between the outer corona shield and the strip of the terminal corona shield. 134-. (canceled)35. A corona protection for an electrical conductor in a rotating electrical machine , the corona protection comprising:an outer corona protection;an end corona protection, which is attached adjacent to the outer corona protection to a high-voltage insulation of the electrical conductor; anda tape with limited electrical conductivity, which is arranged around the high-voltage insulation of the electrical conductor and is impregnated with a resin;wherein a lacquer with limited electrical conductivity is arranged in the transitional region between the outer corona protection and the tape of the end corona protection, at least between the high-voltage insulation and the tape, wherein the lacquer is applied to the high-voltage installation and overlaps the outer corona protection by a first distance, and wherein the tape protrudes beyond the total length of the lacquer and additionally overlaps the outer corona protection by a second distance.36. The corona protection according to claim 35 , wherein the lacquer is arranged at least laterally adjacent to the outer corona protection on the high-voltage insulation with a shorter overall length than wound around by the tape.37. The corona protection according to claim 35 ,. wherein the tape surrounds the ...

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Номер записи: 54
01-01-2015 дата публикации

OUTDOOR FAN MOTOR AND AIR-CONDITIONING APPARATUS

Номер: US20150003977A1
Автор: KOBAYASHI Shinji, YABUUCHI Hironori
Принадлежит: Mitsubishi Electric Corporation

In a motor, a connection portion between a lead wire and an aluminum wire is provided distant from a terminal block, with a leading end of a winding residing on one of cores that is not adjacent to a core that is at a position where the terminal block is provided. 1. An outdoor fan motor comprising: a stator including a plurality of cores and in which aluminum wires are used as windings;a rotor rotatably provided on an inner circumferential side of the stator;a body outer shell provided as a resin mold that secures the stator;a terminal block provided to a bottom portion of the body outer shell and including terminals with which the stator and an external power source are connected to each other; andlead wires made of copper wires and connecting the terminals of the terminal block to the aluminum wires forming the windings,wherein a connection portion between each of the lead wires and a corresponding one of the aluminum wires is provided distant from the terminal block, with a leading end of each of the windings residing on one of the cores that is not adjacent to a core of the cores that is at a position where the terminal block is provided.2. The outdoor fan motor of claim 1 ,wherein a position of the leading end of each of the windings is offset by 180 degrees or more about a center of rotation with respect to the core of the cores that is at the position where the terminal block is provided.3. The outdoor fan motor of claim 1 ,wherein a portion of the terminal block is embedded in the bottom portion, and the embedded portion is on any of the cores.4. The outdoor fan motor of any one of claim 1 , wherein at least either of a dehumidifying agent and varnish is applied to the connection portion and a joining portion between the aluminum wires.5. An air-conditioning apparatus comprising:a fan provided in a casing and configured to take in air from an air inlet and to blow the air that has passed through a heat exchanger from an air outlet;{'claim-ref': {'@idref': ' ...

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Номер записи: 55
05-01-2017 дата публикации

OPTICAL UNIT WITH SHAKE CORRECTION FUNCTION

Номер: US20170003517A1
Автор: Minamisawa Shinji, SUE Takeshi
Принадлежит:

An optical unit may include a movable body holding an optical module by a holder, a fixed body having a body part surrounding the movable body, a support mechanism swingably supporting the movable body, and a shake correction drive mechanism that swings the movable body. The holder includes a plurality of wall parts on an outer periphery of the optical module, and the wall part holds a part of the shake correction drive mechanism, and the support mechanism includes a movable frame surrounding the optical module and a plurality of swing support parts supporting the movable frame. The movable frame includes supporting point parts contacting the swing support parts, and connecting parts connecting supporting point parts adjacent to each other. The supporting point parts are located on an outer periphery of wall parts, and the connecting parts are disposed so as to pass on inner sides of the wall parts. 1. An optical unit with a shake correction function comprising:a movable body comprising an optical and a holder, the optical module being held by the holder;a fixed body comprising a body part which surrounds the movable body;a support mechanism structured to swingably support the movable body with respect to the fixed body; anda shake correction drive mechanism structured to swing the movable body;wherein the holder comprises a plurality of wall parts disposed on an outer peripheral side with respect to the optical module and the wall part holds a part of the shake correction drive mechanism;wherein the support mechanism comprises a movable frame which surrounds the optical module and a plurality of swing support parts supporting the movable frame;wherein the movable frame comprises supporting point parts contacting with the swing support parts, and connecting parts connecting the supporting point parts adjacent to each other; andwherein the supporting point parts are located on an outer peripheral side with respect to the wall parts and the connecting parts are ...

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Номер записи: 56
05-01-2017 дата публикации

Insulator and Motor Having the Same

Номер: US20170005538A1
Автор: Seong Jin Lee
Принадлежит: LG Innotek Co Ltd

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

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Номер записи: 57
05-01-2017 дата публикации

Method for manufacturing stator of rotary electric machine

Номер: US20170005552A1
Автор: Hiroyuki Hattori, Yukio Tsuchiya
Принадлежит: Toyota Motor Corp

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

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Номер записи: 58
04-01-2018 дата публикации

Corona Shielding Material With An Adjustable Resistance

Номер: US20180005722A1
Автор: Lang Steffen, Plochmann Bastian, Pohlmann Friedhelm, Staubach Christian
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

The present disclosure relates to a corona shielding material. The teachings thereof may be embodied in a material with an adjustable resistance and/or a corona shielding system which comprises an overhang corona shielding system (OCS). In some embodiments, a corona shielding material may include: a matrix; and a filler comprising doped and undoped particles in a given size fraction. A resistance of the corona shielding material is set by a concentration of doped particles in the filler particle size fraction. 1. A corona shielding material comprising:a matrix; anda filler comprising doped and undoped particles in a given size fraction;wherein a resistance of the corona shielding material is set by a concentration of doped particles in the filler particle size fraction.2. The corona shielding material as claimed in claim 1 , the filler includes SiC particles.3. The corona shielding material as claimed in claim 1 , wherein the filler comprises SiC particles in a particle size of SiC1000 claim 1 , SiC800 claim 1 , SiC600 claim 1 , or SiC400.4. The corona shielding material as claimed in claim 1 , wherein the matrix includes a polymeric resin.5. The corona shielding material as claimed in claim 1 , wherein the filler comprises above 40% by weight of a total weight of the corona shielding material.6. The corona shielding material as claimed in claim 1 , wherein the filler includes particles with a globular form.7. The corona shielding material as claimed in claim 1 , wherein the corona shielding material comprises part of an overhang corona shielding system.8. An electrical machine comprising:a corona shielding system including:a matrix; anda filler comprising doped and undoped particles in a given size fraction;wherein a resistance of the corona shielding material is set by a concentration of doped particles in the filler particle size fraction.9. An electrical machine as claimed in claim 8 , wherein the electrical machine comprises a high-voltage machine.10. The ...

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Номер записи: 59
04-01-2018 дата публикации

ARMATURE AND ROTATING ELECTRIC MACHINE

Номер: US20180006512A1
Автор: Kawamura Koji, Masuda Takatoshi, TSUIKI Hironori
Принадлежит: Mitsubishi Electric Corporation

Provided are: a back yoke portion formed in an annular shape; a plurality of tooth portions arranged annularly on an inner periphery of the back yoke portion and forming a plurality of slots that are spaced apart in a circumferential direction and open on an outer peripheral side, the plurality of tooth portions being fitted to an inner peripheral surface of the back yoke portion; a coil housed in the plurality of slots; and a wedge disposed between the coil and the back yoke portion, at an opening of each of the plurality of slots. 1. An armature comprising:a back yoke portion formed in an annular shape;a plurality of tooth portions arranged annularly on an inner periphery of the back yoke portion and forming a plurality of slots that are spaced apart in a circumferential direction and open on an outer peripheral side, the plurality of tooth portions being fitted to an inner peripheral surface of the back yoke portion;a coil housed in the plurality of slots; anda wedge disposed between the coil and the back yoke portion, on an opening side of each of the plurality of slots.2. The armature according to claim 1 , whereinan insulating sheet is formed between the coil and each tooth portion, anda thickness of the wedge is set to be greater than a thickness of the insulating sheet.3. The armature according to claim 2 , wherein the insulating sheet is formed between the coil and the wedge.4. The armature according to claim 1 , wherein each of the back yoke portion and the tooth portions is formed by stacking a plurality of steel plates.5. The armature according to claim 1 , wherein a length of the wedge in an axial direction is set to be greater than a length of each tooth portion in the axial direction.6. The armature according to claim 1 , whereina protrusion protruding in the circumferential direction is formed on one end of the wedge in an axial direction, andthe protrusion abuts one end of each tooth portion in the axial direction.7. The armature according to claim ...

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Номер записи: 60
04-01-2018 дата публикации

MOTOR AIR FLOW COOLING

Номер: US20180006517A1
Автор: Hibbs Bart Dean, SHEPPARD Lindsay Aspinwall
Принадлежит: AeroVironment, Inc.

In one possible embodiment, an aircraft electric motor cooling system is provided having an airflow path through a spinner which includes a first airflow path between an inner rotor and a stator, a second airflow path between an outer rotor the stator and a third airflow path along an outer surface of the outer rotor. 1. An aircraft electric motor cooling system comprising: i) a first airflow path between an inner rotor and a stator;', 'ii) a second airflow path between an outer rotor and the stator; and', 'iii) a third airflow path along an outer surface of the outer rotor., 'a) an airflow path through a spinner comprising2. The system of claim 1 , wherein the first airflow path extends along inner rotor magnets.3. The system of claim 2 , wherein the second airflow path extends along outer rotor magnets.4. The system of claim 2 , wherein the first airflow path extends along a front stator yoke and along a rear stator yoke.5. The system of claim 1 , wherein the second airflow path extends along outer rotor magnets.6. The system of claim 5 , wherein the second airflow path extends along a front stator yoke and a rear stator yoke.7. The system of claim 1 , wherein the first claim 1 , second claim 1 , and third airflow paths return to an air stream path.8. The system of claim 7 , wherein the second and third airflow paths extend through a rear stator heat sink along with an air stream path.9. The system of claim 1 , wherein the second and third airflow paths extend through a rear stator heat sink along with an air stream path.10. The system of claim 1 , further comprising an air stream path extending through a rear stator heat sink.11. An electric aircraft motor comprising:a) an inner rotor connected with an outer rotor;b) a stator comprising a winding located between the inner rotor and the outer rotor;c) a spinner; and (1) a first airflow path between an inner rotor and a stator; and', '(2) a second airflow path between an outer rotor the stator., 'i) an airflow path ...

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Номер записи: 61
07-01-2021 дата публикации

Rotor for Separately Excited Inner Rotor Synchronous Machine, Inner Rotor Synchronous Machine, Motor Vehicle and Method

Номер: US20210006105A1
Автор: Bernhard Huebner, Daniel Loos, Joerg Merwerth, Klaus Vollmer, Silko Feustel, Yann Tremaudant
Принадлежит: Bayerische Motoren Werke AG

A rotor for a separately excited inner rotor synchronous machine of an electrically drivable motor vehicle, having a plurality of rotor windings for forming a rotor magnetic field and a rotor core for holding the rotor windings, wherein the rotor core has an annular rotor yoke with a number of rotor poles corresponding to a number of rotor windings. The poles are arranged along a rotor circumference on the rotor yoke and the rotor windings are arranged on the poles, wherein the rotor poles are formed of multiple parts and each has a rotor tooth and at least one pole shoe element separate therefrom. The rotor teeth are formed as a single piece with the rotor yoke, and the pole shoe elements are mechanically connectable to the rotor teeth after arranging the rotor windings on the rotor teeth. Also provided are the synchronous machine, a motor vehicle and a method.

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Номер записи: 62
07-01-2021 дата публикации

High Efficiency Electric Machine

Номер: US20210006116A1
Автор: Gabrys Christopher W., Rogers Timothy S.
Принадлежит: Revolution Electric Motor Company, Inc.

An electric machine for converting between electrical and rotary mechanical energy includes a rotor journaled to rotate about an axis of rotation, and a stationary stator mounted adjacent to the rotor. The stator has a ferromagnetic backiron with a surface facing the rotor across a magnetic airgap and having windings applied in a winding pattern formed directly onto the stator backiron and adhered to its surface with a pre-applied tacky adhesive. The windings magnetically exert torque upon the rotor across the magnetic armature airgap in response to electric power applied to the windings. The rotor has permanent magnets that generate magnetic flux across the airgap and through the windings. The windings are comprised of pre-bundled multiple individually insulated conductor strands that are electrically connected in parallel but are electrically insulated from each other along their lengths inside said magnetic armature airgap. 1. An electric machine for converting between electrical and rotary mechanical energy comprising:a rotor and a stator wherein said rotor is journaled to rotate about an axis of rotation, said stator is stationary adjacent to said rotor and includes a slotless ferromagnetic stator backiron ring having air core armature windings that are adhered to a surface thereof, said windings magnetically exert torque upon said rotor across a magnetic armature airgap between a rotor backiron on said rotor and said stator backiron surface in response to electric power applied to said windings;said rotor comprising permanent magnets on said rotor backiron that generate magnetic flux across said magnetic armature airgap and through said air core armature windings;said air core armature windings are comprised of pre-bundled multiple individually insulated conductor strands that are electrically connected in parallel but are electrically insulated from each other along their lengths inside said magnetic airgap;said conductor strands are enclosed by a serve that ...

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Номер записи: 63
07-01-2021 дата публикации

SLOT WEDGE ELEMENT, STATOR DEVICE, MOTOR, AND WIND TURBINE

Номер: US20210006117A1
Автор: FAN Wenshou, Li Jinhui, Wang Dinghui
Принадлежит: Xinjiang Goldwind Science & Technology Co., Ltd.

The present application relates to a slot wedge element, a stator device, a motor, and a wind turbine. The slot wedge element extends in a first direction and has opposite first and second edges has a first surface and a second surface in the thickness direction thereof, and is attached to a winding of the stator device via the first surface. The second surface includes a first portion, a second portion, and a third portion sequentially distributed in the first direction. A second thickness between the second portion and the first surface is greater than a first thickness between the first portion and the first surface, and the second thickness is greater than or equal to a third thickness between the third portion and the first surface. The first thickness is decreasingly distributed in a direction from the second portion to the first edge. 1. A slot wedge element , applied for a stator device , wherein the slot wedge element extends in a first direction and comprises a first edge and a second edge opposite to each other , and the slot wedge element comprises a first surface and a second surface in its thickness direction , and is attached to a winding of the stator device via the first surface;the second surface comprises a first portion, a second portion and a third portion which are sequentially and continuously distributed in the first direction, wherein the first portion is connected with the first edge, and the third portion is connected with the second edge; andwherein, a second thickness between the second portion and the first surface is greater than a first thickness between the first portion and the first surface, the second thickness is greater than or equal to a third thickness between the third portion and the first surface, and the first thickness decreases progressively in a direction from the second portion to the first edge.2. The slot wedge element according to claim 1 , wherein claim 1 , the second thickness is greater than the third thickness ...

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Номер записи: 64
03-01-2019 дата публикации

COMPRESSOR MOTOR AND COMPRESSOR EQUIPPED WITH SAME

Номер: US20190006894A1
Автор: Ikeda Takahiro, KOBAYASHI Noriyuki
Принадлежит:

There is provided a compressor motor in which a teeth member and a yoke member are bonded while inhibiting deformation of bridge portions and which is capable of decreasing drop of torque due to a leakage magnetic flux. A stator is constituted of a teeth member in which inner end portions of adjacent teeth are continuous in a bridge portion and on which wires are wounded, and a yoke member bonded to an outer side of the teeth member to form a magnetic path, the yoke member includes press-fitting concave regions which are opened inwardly and into which outer end portions of the teeth are press-fitted, and inner side surfaces A of the press-fitting concave regions which face each other possess projecting shapes, respectively, and both side surfaces B of each of the outer end portions of the teeth are formed in a recessed shape which matches the shape of the inner side surfaces of the press-fitting concave regions. 1. A compressor motor which is stored in a container to drive a compression element , comprising:a stator, and a rotor which is fixed to a rotary shaft to drive the compression element and which rotates on an inner side of the stator,wherein the stator is constituted of:a teeth member in which inner end portions of adjacent teeth are continuous in a bridge portion and on which wires are wounded, anda yoke member bonded to an outer side of the teeth member to form a magnetic path,the yoke member comprises press-fitting concave regions which are opened inwardly and into which outer end portions of the teeth are press-fitted, and inner side surfaces of each press-fitting concave region which face each other possess projecting shapes, respectively, andboth side surfaces of each of the outer end portions of the teeth are formed in a recessed shape which matches the shape of the inner side surfaces of the press-fitting concave regions.2. The compressor motor according to claim 1 , wherein projecting portions are formed in the inner side surfaces of the press- ...

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Номер записи: 65
03-01-2019 дата публикации

PERMANENT MAGNET ROTATING DEVICE HAVING MINIMIZED COGGING TORQUE, PERMANENT MAGNET GENERATOR USING SAME, AND PERMANENT MAGNET MOTOR

Номер: US20190006897A1
Автор: ROH Soon Chang
Принадлежит:

The inventive concept relates to a permanent magnet rotating device having a minimized cogging torque, a permanent magnet generator using the same, and a motor, and more particularly, an objective of the inventive concept is to minimize a cogging torque of a permanent magnet rotating device including a stator and a rotor used in a motor or a generator by a simple combination of the number of poles and the number of slots and a proper arrangement of permanent magnets without using various conventional methods for reducing cogging torque while increasing costs. Through the inventive concept, cogging torque is minimized when a combination of the number of poles and the number of slots are adjusted, the width of lower ends of slots and a spacing distance between the permanent magnets are made the same, and a proper winding method and a pitch are applied. 1. A rotating device comprising:a stator core and a rotor;coils of a plurality of phases wound on the stator core; anda plurality of permanent magnets disposed in the rotor,wherein parts in which two of the coils of each of the coils of the plurality of phases are successively wound face each other at 180°.2. The rotating device of claim 1 , wherein parts in which two coils of the coils of the plurality of phases are successively wound are spaced apart from adjacent ones of the coils of the coils of plurality of phases by 60°.3. The rotating device of claim 1 , wherein the number of poles of the plurality of permanent magnets and the number of slots of the stator core are determined in Equation 1 as follows:{'br': None, 'i': P=S/', 'P', 'S, '3−2(: the number of poles,: the number of slots).\u2003\u2003[Equation 1]'}4. The rotating device of claim 1 , wherein a spacing distance between the plurality of permanent magnets is not less than 70% and not more than 130% of a width of lower ends of the stator core.5. The rotating device of claim 4 , wherein a ratio of the spacing distance of the plurality of permanent magnets to ...

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Номер записи: 66
03-01-2019 дата публикации

COIL ARRANGEMENT AND HOUSING MODULE SET FOR A COIL ARRANGEMENT OF AN ELECTRIC MOTOR

Номер: US20190006902A1
Автор: Bosco Nicola, Fernandes Goncalves Jose Manuel, GAUSE Alfred, Herrmann Boris, SZCZUKIEWICZ Sylwia
Принадлежит:

A coil arrangement for an electric motor includes a plurality of individual coils and a plurality of housing modules. Each of the housing modules is a plastics part that is separately produced from the coil arrangement. Each of the housing modules is designed to enclose the same amount of the individual coils. 1. A coil arrangement for an electric motor , the coil arrangement comprising:a plurality of individual coils; anda plurality of housing modules, each of the housing modules being a plastics part separately produced from the coil arrangement, and each of the housing modules being designed to enclose the same amount of the individual coils.2. The coil arrangement according to claim 1 , wherein the electric motor is a multi-phase electric motor claim 1 , wherein a total number of the individual coils provided in the coil arrangement corresponds to a number of phases multiplied by a whole-number factor claim 1 , and wherein a total number of the housing modules is identical to the whole-number factor.3. The coil arrangement according to claim 1 , wherein all of the housing modules share a sufficient number of identical dimensions such that the housing modules are producible by an injection-molding process in the same cavity.4. The coil arrangement according to claim 1 , wherein all of the housing modules each comprise at least one coupling element which is designed to couple two of the housing modules to one another.5. The coil arrangement according to claim 4 , wherein the at least one coupling element comprises a recess that is designed to allow for an insulating filler to flow between interiors of the two housing modules that are coupled to one another via the at least one coupling element.6. The coil arrangement according to claim 4 , wherein the at least one coupling element forms a latching fastener at least in part.7. The coil arrangement according to claim 1 , wherein each of the housing modules comprises a lower part and an upper part claim 1 , which in ...

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Номер записи: 67
02-01-2020 дата публикации

HIGH FREQUENCY ELECTRIC MOTOR, CONTROL SYSTEM, AND METHOD OF MANUFACTURE

Номер: US20200007007A1
Автор: Haran Kiruba Sivasubramaniam
Принадлежит: The Board of Trustees of the University of Illinois

A propulsion system for an aircraft or other vehicle can include an electric motor with a rotor and a stator. A cooling arrangement for the electric motor can include one or more of: a heat sink that is disposed within an internal area of the motor and that supports, within the internal area, one or more power-electronic components for operation of the electric motor; and a plurality of flow channels that are formed along at least one of the rotor and the stator. The flow channels can be arranged to route ambient air past the at least one of the rotor and the stator during operation of the aircraft or other vehicle. 1. A propulsion system for an aircraft or other vehicle , the propulsion system comprising:an electric motor that includes a rotor and a stator, the stator being arranged radially inwardly from the rotor and defining an internal area that is radially inward from the stator; 'a heat sink that is disposed within the internal area and supports, within the internal area, one or more power-electronic components for operation of the electric motor; and', 'a cooling arrangement that includesa plurality of flow channels that are formed along the stator, the flow channels being arranged to route ambient air past the stator during operation of the aircraft or other vehicle.2. The propulsion system of claim 1 , wherein the stator includes a plurality of air-gap wound coils supported by a yoke; andwherein a first set of the flow channels are formed along a radially outer profile of the stator and open into an air gap that separates the stator and the rotor.3. The propulsions system of claim 2 , wherein a second set of the flow channels are formed as axially extending flow channels within the stator.4. The propulsion system of claim 3 , wherein the stator is integrated into a nacelle of a turbofan assembly; andwherein vents are provided in the nacelle to route the ambient air to the flow channels.5. A propulsion system for an aircraft or other vehicle claim 3 , the ...

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Номер записи: 68
08-01-2015 дата публикации

DISC-TYPE ELECTRIC MACHINE WITH AMORPHOUS IRON ALLOY AXIAL MAGNETIC CIRCUIT AS WELL AS ITS MANUFACTURING METHOD AND STATOR ASSEMBLY

Номер: US20150008779A1
Автор: Liu Qingshan, Shi Lei, XIE Wei
Принадлежит: SHENZHEN HOPEWIN TECHNOLOGY CO., LTD.

A disc-type electric machine with amorphous iron alloy axial magnetic circuit, its stator iron core with an axial center through hole is processed into a cylinder made from amorphous iron alloy lamination, and its outer cylindrical surface is uniformly processed with a plurality of equi-spaced axial armature slots towards the center axial line. In the stator iron core embedded winding assemblies with the same number as the armature slots, each winding assembly comprises a winding wire frame matched with the armature slot, each stator winding arranged respectively in a slot of the winding wire frame and a magnetic conducting body arranged in a through hole of the winding wire frame. The said disc-type electric machine has short axial size, less moving components, small eddy current loss, excellent high-frequency characteristic, low temperature rising, high efficiency, high power density, high material utilization rate and high efficient energy-saving. 1. A disc-type electric machine with amorphous iron alloy axial magnetic circuit , comprises a shell , an end cover , a stator assembly , a rotor assembly and an electric machine shaft matched with the said stator assembly; one end face of the said stator assembly is fixed on the inner face of the said end cover axially; the said rotor assembly is fixed on the said electric machine shaft , and close to the other end face of the said stator assembly in parallel , thus to forming an axial air gap between them; the said electric machine shaft is rotatably supported on the position determined by the said end cover and/or shell , the said end cover is fixed at the open end of the said shell; the said stator assembly comprises a stator iron core , wherein:The said stator iron core is processed into a cylinder with an axial central through-hole from the amorphous iron alloy lamination, and the outer cylindrical surface of the stator iron core is uniformly processed with a plurality of equi-spaced axial armature slots towards ...

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Номер записи: 69
08-01-2015 дата публикации

END WINDING CORONA PROTECTION

Номер: US20150008782A1
Автор: Koepfler Andreas, Lugand Thomas, Poux Jeremy
Принадлежит:

An end winding corona protection including a winding of a rotating electric machine, having a conductor and a groundwall insulation surrounding the conductor, an end winding corona protection arranged on the outer surface of the groundwall insulation, the end winding corona protection comprising a first layer characterized in that the surface resistance of the first layer is in the range of 10 Ohm to 80 Ohm, and in that the end winding corona protection further comprises a second layer arranged on the outer surface of the first layer, wherein the second layer is made of semiconductive material, and wherein third layer is arranged on the outer surface of the second layer and made of medium resistive material. 1. A winding of a rotating electric machine , comprisinga conductor and a groundwall insulation surrounding the conductor, andan end winding corona protection arranged on the outer surface of the groundwall insulation,wherein the end winding corona protection comprising a first layer;wherein the surface resistance of the first layer is in the range of 10 Ohm to 200 Ohm, and in that the end winding corona protection further comprises a second layer arranged on the outer surface of the first layer,wherein the second layer is made of semiconductive material.2. A winding according to claim 1 ,wherein the surface resistance of the first layer is in the range of 20 Ohm to 80 Ohm.3. A winding according to claim 2 ,wherein the surface resistance of the first layer is in the range of 30 Ohm to 80 Ohm.4. A winding according to claim 1 ,{'sup': 2', '6', '2, 'wherein the resistance of the second layer perpendicular to the surface is in the range of 100 MOhm/mmto 10MOhm/mm.'}5. A winding according to claim 4 ,{'sup': 2', '5', '2, 'wherein the resistance of the second layer perpendicular to the surface is in the range of 1000 MOhm/mmto 10MOhm/mm.'}6. A winding according to claim 5 ,{'sup': 2', '4', '2, 'wherein the resistance of the second layer perpendicular to the surface ...

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Номер записи: 70
08-01-2015 дата публикации

MOTOR

Номер: US20150008784A1
Автор: FURUKAWA Keizo, KITAJI Kazuya
Принадлежит: NIDEC CORPORATION

A motor includes an armature arranged radially outside a rotor magnet, and a casing configured to fix the armature and hold upper and lower bearings configured to rotatably support a shaft at a radial center thereof. The armature includes a stator core, an insulator arranged to cover the stator core, coils each of which is defined by a conducting wire wound around a separate one of magnetic pole teeth with the insulator intervening therebetween, and passage lines each of which is arranged circumferentially between adjacent ones of the magnetic pole teeth to electrically connect one of the coils and another one of the coils with each other. The insulator includes magnetic pole tooth insulating portions arranged to cover a separate one of the magnetic pole teeth; and a core back insulating portion integral with each magnetic pole tooth insulating portion. 1. A motor comprising:a bearing portion including an upper bearing and a lower bearing;a shaft including a central axis extending in a vertical direction as a center thereof, and rotatably supported by the bearing portion;a rotor magnet configured to rotate together with the shaft;an armature arranged radially outside the rotor magnet; anda casing configured to fix the armature and hold the upper and lower bearings at a radial center thereof, the upper and lower bearings being configured to rotatably support the shaft; wherein a stator core including an annular core back and a plurality of magnetic pole teeth arranged to project radially inward from the core back;', 'an insulator arranged to cover at least an upper surface and a lower surface of each of the plurality of magnetic pole teeth of the stator core;', 'coils each of which is defined by a conducting wire wound around a separate one of the plurality of magnetic pole teeth with the insulator intervening therebetween; and', 'passage lines each of which is arranged circumferentially between adjacent ones of the plurality of magnetic pole teeth to electrically ...

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Номер записи: 71
08-01-2015 дата публикации

ARMATURE FOR ROTATING ELECTRIC MACHINE

Номер: US20150008785A1
Автор: KOZAKI Yoshiyasu, MORI Akio, NOBATA Kazuhiro, TAKIGUCHI Masayuki, Taniguchi Noboru, YAMAMOTO Masayoshi
Принадлежит:

An armature for a rotating electric machine includes an armature core and an armature coil. The armature core includes a substantially annular main body disposed in radial opposition to a field of the machine and teeth extending from the main body radially toward the field. The armature coil is arranged between the teeth of the armature core. For each of the teeth, there are formed a protrusion and a pair of claws at a distal end of the tooth. The protrusion protrudes from a circumferentially central part of the distal end of the tooth radially toward the field. The claws extend, respectively on opposite circumferential sides of the protrusion, from the distal end of the tooth toward the field. Each of the claws has a smaller width at its distal end than at its proximal end and is arcuate-shaped so as to engage with and thereby retain the armature coil. 1. An armature for a rotating electric machine , the armature comprising:an armature core including a substantially annular main body to be disposed in radial opposition to a field of the rotating electric machine, the armature core also including a plurality of teeth each extending from the main body radially toward the field and spaced from one another in a circumferential direction of the main body; andan armature coil arranged between the teeth of the armature core,whereinfor each of the teeth of the armature core, there are formed a protrusion and a pair of claws at a distal end of the tooth,the protrusion protrudes from a circumferentially central part of the distal end of the tooth radially toward the field,the claws extend, respectively on opposite circumferential sides of the protrusion, from the distal end of the tooth toward the field, andeach of the claws has a smaller width at its distal end than at its proximal end and is arcuate-shaped so as to engage with and thereby retain the armature coil.2. The armature as set forth in claim 1 , wherein each of the claws is configured to extend straight parallel ...

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Номер записи: 72
08-01-2015 дата публикации

Stator core compression

Номер: US20150008787A1
Автор: Anand Shankar Tanavde, Christopher Anthony Kaminski, Lakshminarayana Kanakamedala
Принадлежит: General Electric Co

Embodiments of the invention relate generally to electromagnetic devices and, more particularly, to the compression of stator core laminations using wire rope members and to stator cores and electromagnetic devices employing such wire rope members. In one embodiment, the invention includes: affixing a first end of a wire rope member to a first flange plate disposed adjacent a first end of a plurality of stator laminations; affixing a second end of the wire rope member to a second flange plate disposed adjacent a second end of the plurality of stator laminations; tensioning at least one of the first end or the second end of the wire rope member against at least one of the first flange plate and the second flange plate to exert a compressive force against the first flange plate, the second flange plate, and the plurality of stator laminations.

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Номер записи: 73
11-01-2018 дата публикации

SURGICAL MOTOR

Номер: US20180008289A1
Автор: Auber Stephanie, Barth Jürgen, Högerle Roland-Alois, Kahler Thomas
Принадлежит:

A coil former for an electric motor, in particular a high-speed surgical motor, in which a rotor is surrounded concentrically by the substantially hollow-cylindrical coil former, carries at least one stator winding. To ensure that as narrow an air gap as possible is permanently maintained between the coil former, which is preferably produced using an injection-molding method often with complex shaping, and a rotor, which runs in the coil former, the coil former is formed either by a non-conductive fully ceramic body, or is in the form of a composite body in which at least one dimension-stabilizing frame element is embedded by injection-molding with plastic in a plastic body which is preferably produced by injection molding. 1. An electric motor , comprising a rotor which is surrounded concentrically by a substantially hollow-cylindrical coil former which carries at least one stator winding , the coil former being provided with spoke members , ribs and rib extensions for fixing the at least one stator winding in an exactly structured shape , the coil former being in the form of a composite body in which at least one dimension-stabilizing frame element is embedded by injection molding with plastic in a plastic body which is produced by injection molding.2. The electric motor according to claim 1 , wherein the frame element comprises a sleeve body.3. The electric motor according to claim 2 , wherein the sleeve body comprises non-conductive material and at least in portions forms a cylindrical inner surface of the coil former.4. The electric motor according to claim 3 , wherein the sleeve body has a wall thickness which is within a range of from 0.01 to 0.03×D claim 3 , with D being an inner diameter of the coil former.5. The electric motor according to claim 4 , wherein the wall thickness of the sleeve body is within a range of from 0.1 to 0.5 mm.6. The electric motor according to claim 1 , wherein the frame element is formed by a ceramic component.7. The electric ...

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Номер записи: 74
27-01-2022 дата публикации

BRUSHLESS MOTOR SYSTEM FOR POWER TOOLS

Номер: US20220024017A1
Автор: Coates Marcell E., Lewis Joshua M., Purohit Madhur M., Seeley Timothy J., Smith David J., WELLS Bryce A.
Принадлежит:

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

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Номер записи: 75
12-01-2017 дата публикации

COIL ASSEMBLY, ELECTROMAGNETIC ACTUATOR, STAGE POSITIONING DEVICE, LITHOGRAPHIC APPARATUS AND DEVICE MANUFACTURING METHOD

Номер: US20170010544A1
Автор: HUANG Yang-Shan, Kim Minkyu, Nijsse Gerard Johannes Pieter
Принадлежит:

A coil assembly for an electromagnetic actuator or motor, includes a magnetic core including at least one pair of slots; a coil, at least partly mounted inside the at least one pair of slots; and a cooling member, the cooling member being mounted to a surface of the coil. 1. A coil assembly for an electromagnetic actuator or motor , the coil assembly comprising:a magnetic core comprising at least one pair of slots;a coil, at least partly mounted inside said at least one pair of slots; anda cooling member, said cooling member being mounted to a surface of said coil.2. The coil assembly according to claim 1 , wherein the surface of said coil is inside said at least one pair of slots.3. The coil assembly according to claim 1 , wherein the cooling member is mounted to a side surface of said at least one pair of slots.4. The coil assembly according to claim 1 , wherein the cooling member is mounted to a bottom surface or a top surface of said at least one pair of slots.5. The coil assembly according to claim 1 , wherein the surface of the coil to which the cooling member is mounted is a surface non-contacting the at least one pair of slots.6. The coil assembly according to claim 5 , wherein an outer surface of the cooling member is flush or aligned with an end-surface of a tooth enclosed by the at least one pair of slots.7. The coil assembly according to claim 1 , wherein the cooling member comprises a cooling channel configured to receive a cooling fluid.8. The coil assembly according to claim 1 , further comprising a thermally insulating layer mounted to a side surface of said at least one pair of slots.9. The coil assembly according to claim 1 , wherein a further cooling member is provided to the magnetic yoke.10. An electromagnetic actuator comprising a first member and a second member claim 1 , wherein the first member comprises a coil assembly according to and wherein the second member is configured to claim 1 , in use claim 1 , co-operate with the first member to ...

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Номер записи: 76
12-01-2017 дата публикации

Insulated windings and methods of making thereof

Номер: US20170011820A1
Автор: Daniel Qi Tan, David Gilles Gascoyne, Ming Yin, Slawomir Rubinsztajn, Venkat Subramaniam Venkataramani, Weijun Yin
Принадлежит: General Electric Co

An insulated winding is provided, wherein the insulated winding includes (a) an electrically conductive core; (b) an electrically insulating non-porous ceramic coating disposed on the conductive core; and (c) a composite silicone coating including a plurality of electrically insulating filler particles disposed on the ceramic coating. Further, a method of making an insulated winding is also provided.

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Номер записи: 77
15-01-2015 дата публикации

Motor and a method of assembling the same

Номер: US20150015102A1
Автор: Chao Bi, Chiew Leong Wong, Ralph Stephen Viskochil
Принадлежит: Agency for Science Technology and Research Singapore

In various embodiments, a motor may be provided. The motor may include a base, a first rotor, a second rotor and a stator arranged between the first rotor and the second rotor, the stator including an alignment member for aligning the stator to the base.

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Номер записи: 78
14-01-2016 дата публикации

MOTOR INTERCONNECT DEVICE

Номер: US20160013696A1
Автор: Aiello Anthony Joseph, Patton Brad Lee
Принадлежит:

A fan assembly having a reduced dimension formed by several modifications is described. The fan assembly includes a stator having stator coils positioned within a recessed portion of a pillow that receives the motor. The stator may include wire connections positioned between adjacent stator coils and designed to terminate wires of the stator coils. The wire terminations may be on a protrusion or a post positioned between adjacent stator coils, or alternatively, the wire terminations may be disposed on protruding features of a bushing. The protrusion may be formed from an electrically conductive material and electrically connected to a motor control circuit via a flexible printed circuit. In some embodiments, the protrusion is part of an electrically neutral stator bushing having several pins. Also, a gap region between the bushing and a flange feature is designed to improve an adhesive joint. 1. A fan assembly suitable for use in a computing system , the fan assembly comprising:a stator including a first stator pole and a second stator pole;a coil wound around the first stator pole and the second stator pole to define a first stator coil and a second stator coil, the coil including a wire portion; anda circuit assembly including a post positioned between the first stator coil and the second stator coil, the post having an electrically conductive region that receives the wire portion to electrically connect the first stator coil with the circuit assembly.2. The fan assembly of claim 1 , further comprising a pillow having a recessed portion that receives a portion of the first stator coil.3. The fan assembly of claim 2 , wherein the pillow further comprises an opening extending through the pillow claim 2 , and wherein the circuit assembly extends through the opening to electrically couple with a component.4. The fan assembly of claim 2 , wherein the circuit assembly comprises an extension that receives the post.5. The fan assembly of claim 1 , further comprising a ...

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Номер записи: 79
14-01-2016 дата публикации

Canned motor and vacuum pump

Номер: US20160013698A1
Автор: Atsushi Oyama, Naoya Yoshida, Takanori Inada, Takashi Hozumi, Toshiharu Nakazawa, Yoshinori Ojima
Принадлежит: Ebara Corp

Provided is a canned motor to be coupled to a vacuum pump and used as a rotary driving source for the vacuum pump. The canned motor includes: a stator core; a rotor provided on an inner side of the stator core; and a non-conductive can provided between the stator core and the rotor. The non-conductive can is configured to separate the stator core and the rotor from each other. The non-conductive can is made of resin, ceramic, or composite material thereof. The non-conductive can is bonded to the stator core with an adhesive.

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Номер записи: 80
10-01-2019 дата публикации

STATOR FOR ROTARY ELECTRIC MACHINE

Номер: US20190013704A1
Автор: Pydin Andrii
Принадлежит: HONDA MOTOR CO., LTD.

A stator for a rotary electric machine includes: a stator core; and a coil including a plurality of first coil segments and a plurality of second coil segments; a first coil segment of the plurality of first coil segments includes an insertion portion and a protrusion portion; a second coil segment of the plurality of second coil segments includes an insertion portion and a protrusion portion; the end portion of the protrusion portion of the first coil segment is joined with the end portion of the protrusion portion of the second coil segment; and abutting surfaces, abutting on each other at the protrusion portion of the first coil segment and the protrusion portion of the second coil segment, include: joining surfaces joined to each other; and bent surfaces that are bent in the same direction with respect to the joining surfaces. 1. A stator for a rotary electric machine comprising:a stator core; anda coil inserted into a plurality of slots formed in the stator core and including a plurality of coil segments protruding outward in an axial direction of the stator core from the slots, wherein:the plurality of coil segments include a plurality of first coil segments and a plurality of second coil segments;a first coil segment of the plurality of first coil segments includes an insertion portion that is inserted into the slot and a protrusion portion that protrudes outward in the axial direction from an end face in the axial direction of the stator core:a second coil segment of the plurality of second coil segments includes an insertion portion that is inserted into the slot and a protrusion portion that protrudes outward in the axial direction from the end face;the end portion of the protrusion portion of the first coil segment is joined with the end portion of the protrusion portion of the second coil segment in a state of abutting on the end portion of the protrusion portion of the second coil segment; andabutting surfaces, abutting on each other at the protrusion ...

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Номер записи: 81
10-01-2019 дата публикации

ROTOR AND MOTOR

Номер: US20190013709A1
Автор: Suzuki Koutarou
Принадлежит: FANUC Corporation

A rotor includes: a cylindrical rotor core fixed to an outer peripheral side of a rotary shaft rotatable about an axis center, the rotor core including multiple first slots arranged at intervals in the peripheral direction of the rotor core and penetrating the rotor core in the axis direction of the rotary shaft, and multiple second slots formed at an inner position of the rotor core with respect to the first slots, arranged at intervals in the peripheral direction of the rotor core, and penetrating the rotor core in the axis direction of the rotary shaft; and a secondary conductor including multiple conductor bars arranged in the first slots and the second slots, and a pair of ring-like end rings arranged at opposite end surfaces of the rotor core and connecting end portions of the multiple conductor bars. 1. A rotor comprising: multiple first slots arranged at intervals in a peripheral direction of the rotor core and penetrating the rotor core in an axis direction of the rotary shaft; and', 'multiple second slots formed at an inner position of the rotor core with respect to the first slots, arranged at intervals in the peripheral direction of the rotor core, and penetrating the rotor core in the axis direction of the rotary shaft; and, 'a cylindrical rotor core fixed to an outer peripheral side of a rotary shaft rotatable about an axis center, the rotor core including multiple conductor bars arranged in the first slots and the second slots; and', 'a pair of ring-like end rings arranged at opposite end surfaces of the rotor core and connecting end portions of the multiple conductor bars., 'a secondary conductor including2. The rotor according to claim 1 , wherein the multiple first slots are arranged at substantially regular intervals and have substantially equal sectional areas claim 1 , andthe multiple second slots are arranged at substantially regular intervals and have substantially equal sectional areas.3. The rotor according to claim 1 , wherein the first ...

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Номер записи: 82
10-01-2019 дата публикации

Magnetically levitated rotor and a rotary machine with such a rotor

Номер: US20190013747A1
Автор: Giampiero Foiera, Mathias Hoffmann, Natale Barletta, Reto Schöb, Thomas Eberle, Thomas Gempp
Принадлежит: Levitronix GmbH

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

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Номер записи: 83
14-01-2021 дата публикации

RADIAL GAP TYPE ROTATING ELECTRICAL MACHINE

Номер: US20210013760A1
Автор: Enomoto Yuji
Принадлежит: Hitachi, Ltd.

A radial gap type rotating electrical machine using amorphous metal that can realize high efficiency and is excellent in productivity is provided. The radial gap type rotating electrical machine according to the present invention includes a rotor including a rotary shaft and a rotor iron core that rotates around the rotary shaft, and a stator including a stator iron core that is disposed to face the rotor iron core. The stator iron core has an annular shape and has a back yoke () having a plurality of recesses provided along inner periphery, and a tooth () having one end fitted to the recess and the other end protruding toward the rotor iron core, the tooth () has a laminate in which amorphous metal foil strips are laminated in an axial direction of the rotary shaft, and an insulating member () that holds the laminate, and a magnetic material () is provided in an end portion on a side facing the rotor of the insulating member (). 1. A radial gap type rotating electrical machine , comprising:a rotor including a rotary shaft and a rotor iron core that rotates around the rotary shaft; anda stator including a stator iron core that is disposed to face the rotor iron core, whereinthe stator iron core has an annular shape and has a back yoke having a plurality of recesses provided along inner periphery, and a tooth having one end fitted to the recess and the other end protruding toward the rotor iron core,the tooth has a laminate in which amorphous metal foil strips are laminated in an axial direction of the rotary shaft, and an insulating member that holds the laminate, anda magnetic material is provided in an end portion on a side facing the rotor of the insulating member.2. The radial gap type rotating electrical machine according to claim 1 , wherein the magnetic material is a magnetic member that covers part of an end portion on a side facing the rotor of the insulating member.3. The radial gap type rotating electrical machine according to claim 2 , wherein the ...

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Номер записи: 84
14-01-2021 дата публикации

ELECTRIC MOTOR AND RADIATOR FAN

Номер: US20210013771A1
Автор: FELLA Maximilian, HERMANN Eugen, SCHULZ Janik, ZHANG Sunny
Принадлежит: Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg

An electric motor including a rotor rotatably mounted about a rotational axis extending in the axial direction, and a stator including stator teeth widened in a T shape at the tooth-base side to form pole tabs and extending in the circumferential direction. The pole tabs may form a bearing shoulder. A respective stator slot for receiving coils of a stator winding is formed between adjacent stator teeth and a slot opening formed between mutually facing pole tabs. A reinforcing element may be inserted into a slot opening. The reinforcing element are held on mutually facing pole tabs of adjacent stator teeth by the bearing shoulders. The reinforcing element includes a contour that engages a bearing region to reduce a contact area with the bearing shoulders. 1. An electric motor comprising:a rotor rotatably mounted about a rotational axis extending in an axial direction; anda stator provided with a laminated core, forming a stator yoke, a number of stator teeth extending radially from the stator yoke, and a number of reinforcing elements,wherein each of the stator teeth are T shaped and include a tooth-base side forming pole tabs extending in a circumferential direction defined by the stator,wherein the stator defines a stator slot and a slot opening, wherein the stator slot is disposed between a first stator tooth and a second stator tooth, adjacent to the first stator tooth and configured to receive coils of a stator winding, wherein the slot opening is formed between a first pole tab and a second pole tab facing the first pole tab,wherein the first pole tab forms a first bearing shoulder and the second pole tab forms a second bearing shoulder,wherein a reinforcing element of the number of reinforcing elements includes a contour and wherein the reinforcing element is inserted into the slot opening and the contour engages the first bearing shoulder to hold the reinforcing element between the first pole tab and the second pole tab.2. The electric motor of claim 1 , ...

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Номер записи: 85
14-01-2021 дата публикации

MODELING METHOD OF STATOR WINDING AIR GAP FOR TEMPERATURE FIELD ANALYSIS OF AC TRACTION MOTOR

Номер: US20210013820A1
Автор: KUANG Sijian, Liu Ping, Zhang Xiaoping, Zhang Zhu
Принадлежит:

A modeling method of a stator winding air gap for temperature field analysis of an AC traction motor includes: changing the width of an air gap of a stator winding equivalent model according to a set value of spacing; establishing a three-dimensional finite element model of the AC traction motor with the stator winding air gap; based on the three-dimensional finite element model of different widths of the air gap, analyzing a temperature field to obtain a temperature field distribution diagram of the AC traction motor; carrying out the numerical fitting according to data in the temperature distribution diagram to obtain a function relation between the air-gap width and the temperature of the stator winding equivalent model; and by measuring the actual temperature of a motor stator winding, calculating an optimal air-gap width corresponding to the modeling of the stator winding of the current AC traction motor. 1. A modeling method of a stator winding air gap for temperature field analysis of an AC traction motor , comprising the following steps:{'b': '1', 'step ): establishing a stator winding equivalent model according to the structure of a stator winding of the AC traction motor;'}{'b': 2', '1, 'step ): based on the stator winding equivalent model obtained in the step , determining the structure and the width of an isolation layer between the model and a slot wall and a slot wedge of a stator iron core;'}{'b': 3', '2, 'step ): determining the structure and the initial width of a corresponding insulation layer and the air gap in the isolation layer according to the structure and the width of the isolation layer obtained in the step , and based on the structural parameters of other components of the motor, establishing a three-dimensional finite element model of the AC traction motor;'}{'b': 4', '3, 'step ): carrying out the temperature field analysis based on the three-dimensional finite element model of the AC traction motor obtained in step to obtain a ...

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Номер записи: 86
09-01-2020 дата публикации

A ROTOR AND PRODUCTION OF A ROTOR OF A ROTATING ELECTRICAL MACHINE

Номер: US20200014287A1
Автор: BITTNER Roland, Hösle Markus
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

The invention relates to a method for producing a rotor () for a rotating electrical machine () in which at least one rotor winding () is introduced into a rotor laminated core () of the rotor () in an electrically insulated manner, wherein the rotor winding () is designed as an electrically insulated cage and/or as a damper loop at least partially by means of an additive production method in the rotor laminated core (), wherein an electrical insulation layer () is formed at the same time as the rotor winding () is formed between an electrical conductor () of the rotor winding () and the rotor laminated core () and/or between adjacent conductors () of the rotor winding (). 118.-. (canceled)19. A method for producing a rotor for a rotating electrical machine , said method comprising;forming a rotor winding embodied as an electrically insulated cage and/or as a damper loop in a rotor laminated core through an additive production process; andforming a layer of electrical insulation between an electrical conductor of the rotor winding and the rotor laminated core and/or between adjacent conductors of the rotor winding, while the rotor winding is formed.20. The method of claim 19 , wherein the rotor winding is embodied as at least two cages electrically insulated from one another.21. The method of claim 19 , wherein the layer of electrical insulation is formed by deposition of an electrically insulating ceramic material.22. The method of claim 19 , wherein the layer of electrical insulation is formed at least in part by a chemical reaction of a surface of the electrical conductor of the rotor winding with a further substance.23. The method of claim 19 , wherein the rotor laminated core is formed together with the rotor winding.24. The method of claim 19 , wherein the layer of electrical insulation is formed at least partly by deposition of a plastic.25. The method of claim 19 , further comprising:forming a short circuit ring at an axial end of the rotor laminated core; ...

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Номер записи: 87
18-01-2018 дата публикации

COMPRESSIBLE MOTOR, IMPLANTATION ARRANGEMENT, AND METHOD FOR POSITIONING THE MOTOR

Номер: US20180015212A1
Автор: Schumacher Joerg
Принадлежит:

The invention relates to a motor with a stator (′) and a rotor (′), which can be driven about an axial direction (). The invention is characterized in that at least one of the stator and the rotor, in particular the stator, which has a winding arrangement that can be supplied with a current, can be radially compressed and expanded. 121-. (canceled)22. A motor , comprising:a rotor that can be driven about an axial direction; anda stator, which has a winding arrangement that can be supplied with a current,wherein the rotor is connected to a pump rotor such that the rotor and the pump rotor rotate jointly about the same axial direction,wherein the stator and pump rotor are each radially compressible and expandable, andwherein the winding arrangement has at least one sub-winding, which is reversibly deformable.23. The motor according to claim 22 , wherein the rotor and the stator can be displaced relative to one another in the axial direction between a first position claim 22 , in which the stator is radially compressible claim 22 , and a second position claim 22 , in which the stator is radially expanded.24. The motor according to claim 22 , wherein the stator and the pump rotor can be arranged axially in succession such that the stator and pump rotor are jointly radially compressible.25. The motor according to claim 22 , wherein the pump rotor comprises blades which fold around the axis of the rotor when the pump rotor is compressed.26. The motor according to claim 22 , wherein the pump rotor is formed from a resilient hyperelastic plastics material.27. The motor according to claim 22 , wherein the pump rotor is configured to collapse when the stator is compressed.28. The motor according to claim 22 , wherein the pump rotor is configured to resiliently or hyperelastically expand when the stator expands.29. The motor according to claim 22 , wherein the rotor has a plurality of magnet elements claim 22 , which are reversibly movable relative to one another.30. The motor ...

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Номер записи: 88
15-01-2015 дата публикации

FIELD ROTOR OF SUPERCONDUCTING ROTARY MACHINE

Номер: US20150018219A1
Автор: SATO Yoshichika, Takao Satoru, Umemoto Katsuya
Принадлежит: KAWASAKI JUKOGYO KABUSHIKI KAISHA

A field rotor of a superconducting rotary machine, includes a rotary shaft, a plurality of coil boxes, and a plurality of superconducting coils; wherein the coil boxes extend in a center axis direction of the rotary shaft, have walls defining spaces within the coil boxes, respectively, and are removably fastened to a peripheral surface of the rotary shaft; wherein the superconducting coils are disposed in the spaces of the coil boxes, respectively, and constitute field windings of the superconducting rotary machine. 1. A field rotor of a superconducting rotary machine , comprising:a rotary shaft;a plurality of coil boxes; anda plurality of superconducting coils;wherein the coil boxes extend in a center axis direction of the rotary shaft, have walls defining spaces within the coil boxes, respectively, and are removably fastened to a peripheral surface of the rotary shaft; andwherein the superconducting coils are disposed in the spaces of the coil boxes, respectively, and constitute field windings of the superconducting rotary machine.2. The field rotor of the superconducting rotary machine according to claim 1 ,wherein each of the coil boxes includes therein a cooling medium passage through which a cooling medium used for cooling the superconducting coil flows.3. The field rotor of the superconducting rotary machine according to claim 2 , comprising:gaps formed between the respective coil boxes and the peripheral surface such that each of the gaps extends in the center axis direction and a circumferential direction of the rotary shaft.4. The field rotor of the superconducting rotary machine according to claim 3 , comprising:protective resistors fastened to the coil boxes such that the protective resistors are disposed within the gaps, respectively, and connected in parallel with the superconducting coils corresponding to the gaps, respectively.5. The field rotor of the superconducting rotary machine according to claim 1 , comprising:low-heat contraction members, each ...

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Номер записи: 89
21-01-2016 дата публикации

Electric motor, pump device using electric motor, and stator

Номер: US20160020659A1
Автор: Jun Takahashi
Принадлежит: Mikuni Corp

An electric motor, and the electric motor includes a stator core provided on a stator, a plurality of teeth provided on the stator core, a coil wound body attached to the tooth, an inner flange portion provided at an inner diameter side of a bobbin, a first engagement portion provided at one end side in a width direction of the inner flange portion, and a second engagement portion provided at the other end side in the width direction of the inner flange portion, the first engagement portion being provided to be located at an outer side in a diameter direction than the second engagement portion of the adjacent coil wound body in a moving direction, the second engagement portion being provided to be located at an outer side in a diameter direction than the first engagement portion of the adjacent coil wound body in a moving direction.

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Номер записи: 90
19-01-2017 дата публикации

Power generation device utilizing renewable natural energy

Номер: US20170018943A1
Автор: Yutaka Nemoto
Принадлежит: Individual

A power generation device using renewable energy includes: a storage battery configured to temporarily store electric power generated through renewable energy; and a plurality of electric power generators along with a motor, the plurality of electric power generators configured to be caused, by the motor driven through electric power output from the storage battery, to rotate so as to further generate electric power, of which one portion is charged into the storage buttery and the other portion is output to an interconnection system as consumed electric power.

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Номер записи: 91
03-02-2022 дата публикации

ROTATING ELECTRIC MACHINE

Номер: US20220037947A1
Автор: Takahashi Yuki
Принадлежит: Denso Corporation

In a rotating electric machine, a field element has magnetic poles of which polarities alternate in a circumferential direction. An armature includes an armature core having a circular cylindrical shape, and an armature winding of multiple phases. The field element and the armature are provided to oppose each other in a radial direction with an air gap therebetween. Either of the field element and the armature serving as a rotor. The armature winding has a coil-side conductor portion that opposes the magnetic pole of the field element in the radial direction. The coil-side conductor portions are arranged in an array in the circumferential direction. The armature winding is provided with a protruding portion that, between an inner side and an outer side in the radial direction, protrudes towards the field element, and is located further towards an outer side in an axial direction than the coil-side conductor portion is. 1. A rotating electric machine comprising:a field element that has a plurality of magnetic poles of which polarities alternate in a circumferential direction; and an armature core that has a circular cylindrical shape, and', 'an armature winding of multiple phases that, between an inner circumferential side and an outer circumferential side of the armature core, is assembled on a same side as the field element,, 'an armature that includes'}the field element and the armature being provided so as to oppose each other in a radial direction with an air gap therebetween, andeither of the field element and the armature serving as a rotor, wherein:the armature winding has a coil-side conductor portion that opposes the magnetic pole of the field element in the radial direction, and the coil-side conductor portions are arranged in an array in the circumferential direction; andthe armature winding is provided with a protruding portion that, between an inner side and an outer side in the radial direction, protrudes towards the field element, and is located ...

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Номер записи: 92
03-02-2022 дата публикации

APPARATUS AND PROCESS FOR DEFORMING CONDUCTORS PROTRUDING FROM A SIDE OF A STATOR OR OF A ROTOR OF AN ELECTRIC MACHINE

Номер: US20220037970A1
Автор: LUCCHETTI Francesco, MICUCCI Maurilio, RANALLI Giuseppe, RUGGIERI Giovanni, TANCREDI Sergio
Принадлежит:

An apparatus () for deforming conductors of at least one winding assembly (), protruding from a side of a stator or of a rotor () of an electric machine. The at least one winding assembly () comprises a plurality of basic conductors () comprising at least one leg inserted into cavities () of stator or rotor (), each having at least one respective free or terminal end (). The apparatus () comprises at least one twisting matrix () adapted to rotate about an axis (X), comprising at least one gripping element () adapted to grip at least one free end () and adapted to be moved in radial direction with respect to said axis (X). The apparatus comprises at least one guide () adapted to guide the at least one gripping element () along the radial direction with respect to the axis (X); and a radial actuator (), adapted to put in motion the at least one gripping element () along the radial direction with respect to the axis (X). 127-. (canceled)28. An apparatus for deforming conductors of at least one winding assembly , protruding from a side of a stator or of a rotor of an electric machine , said at least one winding assembly comprising a plurality of basic conductors comprising at least one leg inserted in a cavity of stator or of rotor , each having at least one respective free or terminal end; said apparatus comprising at least one twisting matrix , adapted to rotate about an axis (X) , comprising at least one gripping element adapted to grip at least one free end and adapted to be moved in radial direction with respect to said axis (X); said apparatus comprising at least one guide adapted to guide the at least one gripping element along the radial direction with respect to the axis (X); and a radial actuator , adapted to put in motion the at least one gripping element along the radial direction with respect to the axis (X).29. The apparatus according to claim 28 , characterized in that the gripping element comprises a seat or slot having an extension substantially ...

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Номер записи: 93
03-02-2022 дата публикации

ELECTRIC MACHINE

Номер: US20220037979A1
Автор: HUSBAND Stephen M, IACCHETTI Matteo, MANOLOPOULOS Charalampos C., MILLER Paul R, SMITH Alexander C
Принадлежит: ROLLS-ROYCE PLC

An electric machine including a stator having a fully non-magnetic core and stator windings formed of a non-superconducting transposed conductor to reduce eddy current losses. It further includes a rotor having a fully non-magnetic core and superconducting windings or superconducting magnets which produce a magnetic field for interaction with the stator windings. A cryogenic cooling system is arranged to cool the stator windings to reduce conduction losses in the stator windings. 115-. (canceled)16. A method of operating an electric machine ,the electric machine comprising: a stator having a fully non-magnetic core and stator windings formed of a non-superconducting transposed conductor; a rotor having a fully non-magnetic core and superconducting windings or superconducting magnets which produce a magnetic field for interaction with the stator windings; and a cryogenic cooling system arranged to cool the stator windings,the method comprising: using the cryogenic cooling system, cooling the stator windings to a predetermined temperature of 223 Kelvin or below, the predetermined temperature minimizing a sum of eddy current losses and conduction losses in the stator windings.18. The method of claim 16 , in which the predetermined temperature is determined using predetermined conductivity versus temperature data for a material from which the transposed conductor of the stator windings is made.19. The method of claim 18 , in which determining the predetermined temperature comprises using the predetermined conductivity versus temperature data and a conductivity value for the transposed conductor of the stator windings.21. The method of claim 20 , in which B claim 20 , the magnetic field strength in the transposed conductor of the stator windings claim 20 , is the magnetic field at a location Dcorresponding to a mean diameter of the stator windings.23. The method of claim 16 , in which the electric machine is operated at a power of at least 1 MW.24. The method of claim 16 ...

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Номер записи: 94
22-01-2015 дата публикации

Molded Segment for an Energy Conversion System and Production of Such a Segment

Номер: US20150022032A1
Автор: Jørg Høyland
Принадлежит: SMARTMOTOR AS

The invention describes a segment for an energy conversion system with windings, where the segment consists of at least two objects. The first object comprises coils, insulation and a polymer while the second object comprises at least a polymer and surrounds the first object. A novel feature of the present invention is that the consolidated coils play the role of mechanical support structure in the segment. A production method for a segment for an energy conversion system is also described.

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Номер записи: 95
17-01-2019 дата публикации

STATOR FOR ROTARY ELECTRIC MACHINE, ROTARY ELECTRIC MACHINE, AND METHOD FOR MANUFACTURING STATOR FOR ROTARY ELECTRIC MACHINE

Номер: US20190020228A1
Автор: EGASHIRA Kohei, HARADA Yoshihiro, Hino Tatsuro, MATSUOKA Shohei, Nakamura Masashi, Nakano Aiko, YOSHIDA Shinichiro
Принадлежит: Mitsubishi Electric Corporation

A stator for a rotary electric machine includes: a collar portion provided at an end portion of each of the tooth portions so as to project to the slot side and includes: a connection portion; a bent portion extending in the circumferential direction and forming a first gap; and a stop portion projecting at an end side thereof in the circumferential direction to the slot side and formed so as to have a width in the radial direction larger than a width in the radial direction of the bent portion. An R dimension of a side surface, in the circumferential direction and at a side opposite to a projection side of the tooth portion, of the bent portion is not less than the width in the radial direction of the bent portion. 1. A stator for a rotary electric machine , comprising:a core having an annular back yoke portion and a plurality of tooth portions spaced apart from each other at intervals in a circumferential direction of the back yoke portion and projecting in a radial direction; anda coil mounted to a plurality of slots between the adjacent tooth portions via insulating portions, whereina collar portion is provided at an end portion at a projection side in the radial direction of each of the tooth portions so as to project to the slot side in the circumferential direction, a connection portion connected to the tooth portion,', 'a bent portion extending from the connection portion in the circumferential direction and forming a first gap across which the bent portion is spaced apart from the end portion of the tooth portion, and', 'a stop portion extending from the bent portion in the circumferential direction, projecting at an end side thereof in the circumferential direction to the slot side, and having a width in the radial direction larger than a width in the radial direction of the bent portion, and, 'the collar portion includes'}an R dimension of a side surface, in the circumferential direction and at a side opposite to the projection side of the tooth portion, ...

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Номер записи: 96
17-01-2019 дата публикации

Torque motor including a winding support for stator windings and method for assembling a torque motor of this type

Номер: US20190020254A1
Автор: François Ramadour, Loïc Verhille, Raphaël VILAMOT, Rémi Wojcieszonak
Принадлежит: Liebherr Aerospace Toulouse SAS

The invention relates to a torque motor comprising a stator and a rotor that extend along a common central axis. The stator includes an integral magnetic body and at least one pair of radial teeth that extend along the central axis and define slots for receiving stator windings, and at least one permanent magnet supported by the integral magnetic body. The torque motor also includes a winding support for the stator windings that has a hollow body that extends along the central axis and that delimits a chamber for receiving the rotor, and cavities for receiving the stator windings. In this way, the stator windings are integrated in the stator by the winding support, fitted with the stator windings, being axially inserted into the integral magnetic body.

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Номер записи: 97
16-01-2020 дата публикации

Electric machine with slot closers

Номер: US20200021159A1
Автор: Andrew Kasha, Chun Tang, Jacob Krizan
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

An electric machine includes a stator having teeth that define open slots and slot closers disposed in the slots. Each slot closers includes a flux bridge surrounded by a nonmagnetic case. The slot closer is disposed between adjacent ones of the teeth with the case engaging and spanning the adjacent teeth. The case forms nonmagnetic gaps between the flux bridge and the adjacent teeth, respectively, to reduce potential for torque ripple.

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Номер записи: 98
16-01-2020 дата публикации

MOTOR AND PUMP DEVICE

Номер: US20200021160A1
Автор: Harada Masaki, KOKUBO Nobuki, KURATANI Hiroki, Yamamoto Takashi
Принадлежит:

A motor may include a rotor; and a stator arranged on an outer peripheral side of the rotor. The stator may include a stator core, a plurality of insulators covering the stator core, a coil wound around the stator core through each of the insulators, and a common wire formed of a conductive wire drawn from the coil. At least one of the plurality of insulators includes a first common wire support portion configured to support the common wire from an outside in a radial direction. The first common wire support portion extends inward in the radial direction toward a tip end side of the common wire. 1. A motor comprising:a rotor; anda stator arranged on an outer peripheral side of the rotor,wherein the stator comprises a stator core, a plurality of insulators covering the stator core, a coil wound around the stator core through each of the insulators, and a common wire formed of a conductive wire drawn from the coil,at least one of the plurality of insulators includes a first common wire support portion configured to support the common wire from an outside in a radial direction, andthe first common wire support portion extends inward in the radial direction toward a tip end side of the common wire.2. The motor according to claim 1 , whereinthe insulator provided with the first common wire support portion comprises a second common wire support portion connected to an end portion of the first common wire support portion, the end portion being on an inner side in the radial direction.3. The motor according to claim 2 , comprising:a resin sealing member configured to cover the stator,wherein the resin sealing member comprises a plurality of holes as arrangement marks of pressing members configured to press the stator against a mold for forming the resin sealing member, andthe second common wire support portion is arranged in an angular range including an angular position of any of the plurality of holes.4. The motor according to claim 3 , whereinone insulator of the ...

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Номер записи: 99
16-01-2020 дата публикации

Stator for Rotating Electrical Machine, Rotating Electrical Machine and Method of Producing Stator for Rotating Electrical Machine

Номер: US20200021170A1
Автор: Nakayama Kenichi, Nishikawa Naoki
Принадлежит:

A stator for a rotating electrical machine includes a stator coil and a stator iron core having slots into which the stator coil is mounted, wherein a coil end of the stator coil is elliptical in shape around a center axis of the stator iron core. 1. A stator for a rotating electrical machine comprising:a stator coil; anda stator iron core having slots into which the stator coil is mounted,wherein a coil end of the stator coil is elliptical in shape around a center axis of the stator iron core.2. The stator for a rotating electrical machine according to claim 1 ,wherein the stator coil is arranged with a plurality of segment conductors connected to one another; anda plurality of connection sections of the plurality of segment conductors are elliptically disposed in shape at the coil end of the stator coil around the center axis of the stator iron core.3. The stator for a rotating electrical machine according to claim 2 , wherein the plurality of segment conductors are connected to one another by welding.4. The stator for a rotating electrical machine according to claim 1 , wherein the stator coil is wound around the stator iron core by distributed winding.5. The stator for a rotating electrical machine according to claim 4 , wherein the stator coil is wound around the stator iron core by wave winding.6. A rotating electrical machine comprising:a stator; anda rotor opposed to the stator,wherein the stator includes a stator coil and a stator iron core having slots into which the stator coil is mounted;a coil end of the stator coil is elliptical in shape around a center axis of the stator iron core; andthe coil end is cooled by a liquid refrigerant.7. The rotating electrical machine according to claim 6 , wherein the liquid refrigerant outflows along a major axis section of the coil end.8. The rotating electrical machine according to comprising a storage space for the liquid refrigerant which is opposed to a minor axis section of the coil end.9. A method of producing a ...

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Номер записи: 100