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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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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 27605. 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
16-02-2012 дата публикации

Magnetic Structure Production

Номер: US20120038440A1
Автор: David P. Machado, Dillon Mize, Kelly Loum, Larry W. Fullerton, Mark D. Roberts
Принадлежит: CORRELATED MAGNETICS RESEARCH LLC

Magnetic structure production may relate, by way of example but not limitation, to methods, systems, etc. for producing magnetic structures by printing magnetic pixels (aka maxels) into a magnetizable material. Disclosed herein is production of magnetic structures having, for example: maxels of varying shapes, maxels with different positioning, individual maxels with different properties, maxel patterns having different magnetic field characteristics, combinations thereof, and so forth. In certain example implementations disclosed herein, a second maxel may be printed such that it partially overwrites a first maxel to produce a magnetic structure having overlapping maxels. In certain example implementations disclosed herein, a magnetic printer may include a print head comprising multiple parts and having various properties. In certain example implementations disclosed herein, various techniques for using a magnetic printer may be employed to produce different magnetic structures. Furthermore, description of additional magnet-related technology and example implementations thereof is included herein.

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Номер записи: 2
01-03-2012 дата публикации

Magnet ring of a multi-pole generator for a wind turbine

Номер: US20120049684A1
Автор: Detlef Lange, Dieter Rupprich, Klaus Bodenstein
Принадлежит: Avantis Ltd Hong Kong

In the case of a magnet system ( 1 ) of a multipole generator, in particular for a wind energy installation or wind power installation, comprising a magnet ring ( 2, 2′, 2 a ′- 2 c′, 2 a - 2 j ) having a support ( 5 ) on whose external circumference or internal circumference individual permanent magnets ( 4, 4 ′) are arranged in one or more rows with a regularly changing polarity alignment, the aim is to provide an assembly capability which makes it possible to equip an external rotor or an internal rotor for a generator of a wind power installation with a multiplicity of individual permanent magnets, which are arranged close to one another, in a manner which is simple and advantageous for assembly. This is achieved in that a plurality of magnet rings ( 2, 2′, 2 a - 2 j, 2 a ′- 2 c ′) are joined together at the side, in the axial direction, coaxially and resting on one another, to form a magnet wheel ( 10 ).

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Номер записи: 3
15-03-2012 дата публикации

Silicon steel assembly and assembling method thereof

Номер: US20120062066A1
Автор: Chin-Chu Hsu, Hou-Chu Chen
Принадлежит: Delta Electronics Inc

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

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Номер записи: 4
29-03-2012 дата публикации

Method for Applying Magnets

Номер: US20120073119A1
Автор: Stefan Böpple, Thomas Hannusch
Принадлежит: ThyssenKrupp Elevator AG

A method for applying at least one magnet, a holding device for such a method, and an arrangement comprising a number of holding devices. The method is used for applying at least one magnet to a surface of a part made of a magnetic material. The at least one magnet is moved towards the surface of the part while being retained in the holding device using a retaining force, and a force of attraction that acts against the retaining force is substantially directed towards the part and is applied to the at least one magnet such that the magnet is transferred to the surface of the part as soon as the magnet has been moved towards the surface of the part so as to be at a certain distance therefrom at which the force of attraction exceeds the retaining force.

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Номер записи: 5
10-05-2012 дата публикации

Stator and cage coil

Номер: US20120112595A1
Автор: ATSUSHI Watanabe, Masayoshi Haga
Принадлежит: Toyota Motor Corp

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

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Номер записи: 6
17-05-2012 дата публикации

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

Номер: US20120119605A1
Автор: Christoph Schwarzhopf, Helmut Kreuzer, Klaus Herbold, Klaus Pflueger, Martin Henne
Принадлежит: ROBERT BOSCH GMBH

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

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Номер записи: 7
31-05-2012 дата публикации

Rotating electrical machine and method of manufacturing the rotating electrical machine

Номер: US20120133225A1
Автор: Kosuke Mizuike
Принадлежит: Nidec Corp

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

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Номер записи: 8
21-06-2012 дата публикации

Stator core of rotating electrical machine

Номер: US20120153768A1
Автор: Hiroaki Sanji, Yasuo Yamaguchi, Yuya HONDA
Принадлежит: Aisin AW Co Ltd

A stator core of a rotating electrical machine includes an annular first core plate including a plurality of first core plate pieces and an annular second core plate including a plurality of second core plate pieces. A predetermined number of the first and second core plates are alternately laminated such that stator fixing portions overlap with each other and such that positions of joints between the first core plate pieces of the first core plates differ from positions of joints between the second core plate pieces of the second core plates in the circumferential direction.

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Номер записи: 9
28-06-2012 дата публикации

Stator for electric rotating machine and method of manufacturing the same

Номер: US20120161567A1
Автор: Tetsuya Gorohata
Принадлежит: Denso Corp

A stator includes a stator core and a stator coil formed of electric conductor segments. Each of the electric conductor segments has a pair of in-slot portions, a first end portion, and a pair of second end portions. The in-slot portions are respectively received in corresponding two slots of the stator core. The first end portion extends, on one axial side of the stator core, to connect the in-slot portions. The second end portions extend respectively from the in-slot portions on the other axial side of the stator core. Each of the second end portions includes an oblique part and a distal part. The oblique part extends obliquely with respect to an axial end face of the stator core. Corresponding pairs of the distal parts of the electric conductor segments are joined by welding. The oblique parts of the electric conductor segments have a higher hardness than the in-slot portions.

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Номер записи: 10
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: 11
19-07-2012 дата публикации

Electric motor rotor selectively formed of one of two different magnetic units

Номер: US20120181889A1
Автор: Wei-Chung Su
Принадлежит: Yen Shen Electric Ind Co Ltd

An electric motor rotor includes a core member having a plurality of locating grooves spaced around the periphery thereof and outer rotation-stopping portions, and a magnetic unit arranged around the periphery of the core member and defining a plurality of magnetic zones corresponding to the space between each two adjacent locating grooves. The magnetic unit can be a magnetic barrel having inner rotation-stopping portions for abutting against the outer rotation-stopping portions of the core member. Alternatively, the magnetic unit can be made comprising a plurality of magnets to form the multiple magnetic zones and a hoop for attaching to the magnets to secure the magnets to the periphery of the core member. Using the core member with the said two magnetic units can make two different rotors that have the common advantages of quick assembly, accurate alignment of magnetic zones and cost-effectiveness.

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Номер записи: 12
26-07-2012 дата публикации

Rotor

Номер: US20120187793A1
Автор: Joachim Mucha, Matthias Tutsch, Oliver Memminger, Ulrich Hartmann
Принадлежит: SIEMENS AG

The invention relates to a rotor ( 1 ) of a rotating dynamoelectric machine, comprising permanent magnets ( 3 ) which are arranged on the circumference of the rotor base ( 4 ), said permanent magnets ( 3 ) being positioned and secured by at least one collar ( 2 ) which is closed in circumferential direction.

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Номер записи: 13
02-08-2012 дата публикации

Permanent magnet, motor rotor or stator, rotary electric machine

Номер: US20120194025A1
Автор: Shingo Fubuki
Принадлежит: Toyota Motor Corp

A permanent magnet includes two or more separate permanent magnet pieces each having a rectangular parallelepiped shape with a fractured surface formed when a permanent magnet block is fractured. The separate permanent magnet pieces include a first separate permanent magnet piece and a second separate permanent magnet piece. At the time when the permanent magnet block is fractured, the first and second separate permanent magnet pieces are adjacently located and a first fractured surface of the first separate permanent magnet piece and a second fractured surface of the second separate permanent magnet piece are adjacent to each other. The permanent magnet is configured such that the first fractured surface of the first separate permanent magnet piece and the second fractured surface of the second separate permanent magnet piece are located in positions out of contact with each other.

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Номер записи: 14
16-08-2012 дата публикации

Rotor core for rotating electrical machine, and manufacturing method thereof

Номер: US20120206007A1
Автор: Katsuhide Kitagawa, Makoto Yoshida, Masashi Matsumoto
Принадлежит: Toyota Motor Corp

A cylindrical rotor core 10 for a rotating electrical machine having magnetic steel plates integrally connected by laminating in an axial direction, and having magnet insertion holes 24, 26 formed for inserting permanent magnets inside, wherein the magnet insertion holes 24, 26 are formed extending in the axial direction in a core inner section in the vicinity of an outer peripheral surface 11 c of the rotor core 10, and with openings formed in axial direction end sections of the rotor core 10, and a plurality of magnetic steel plates, including magnetic steel plates at outermost sides in the axial direction in which the openings are formed, are fixed by welding at inner wall surfaces 42 of the magnet insertion holes 24, 26.

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Номер записи: 15
06-09-2012 дата публикации

Stator core of rotating electrical machine and manufacturing method thereof

Номер: US20120223609A1
Автор: Ryoutarou KOJIMA
Принадлежит: Denso Corp

A manufacturing method of a stator core of a rotating electrical machine includes a finishing process that simultaneously moves a coining punch divided in a circumferential direction and arranged around a helically stacked core to a center side in a radial direction and presses an outer surface of a core-back part of the helically stacked core while pressing an end side of the helically stacked core in an axial direction by a holding device.

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Номер записи: 16
27-09-2012 дата публикации

Rotary lamination apparatus

Номер: US20120241095A1
Автор: Kazuyuki Hirata
Принадлежит: Toyota Boshoku Corp

A rotary lamination apparatus includes a die, a punch, a rotation drive source, a mounting table, at least one proximity sensor, and a determining device. The punch punches core pieces from a thin plate material. The rotation drive source drives and rotates the die about the central axis of the die. The mounting table is arranged in the inner space formed by the die. The core pieces are rotated and laminated on the mounting table. The proximity sensor detects whether the die is in the proximity of a predetermined position in a non-contact manner after the die has stopped rotating. The determining device determines whether the die is stopped at the predetermined position based on a detection result from the proximity sensor.

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Номер записи: 17
11-10-2012 дата публикации

Motor and magnetizing apparatus and magnetizing method of motor

Номер: US20120256509A1
Автор: Keun Young Yoon, Sung Gu Lee, Young Kwan Kim
Принадлежит: SAMSUNG ELECTRONICS CO LTD

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

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Номер записи: 18
15-11-2012 дата публикации

Field emission system and method

Номер: US20120286913A1
Автор: James L. Richards, Larry W. Fullerton, Mark D. Roberts
Принадлежит: CORRELATED MAGNETICS RESEARCH LLC

An improved field emission system and method is provided that involves field emission structures having electric or magnetic field sources. The magnitudes, polarities, and positions of the magnetic or electric field sources are configured to have desirable correlation properties, which may be in accordance with a code. The correlation properties correspond to a desired spatial force function where spatial forces between field emission structures correspond to relative alignment, separation distance, and the spatial force function.

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Номер записи: 19
29-11-2012 дата публикации

Interspersed multi-layer concentric wound stator

Номер: US20120299431A1
Автор: John F. Bangura
Принадлежит: Hamilton Sundstrand Corp

A stator includes a stator support having multiple axially extending circumferentially arranged slots. Multiple phases each include multiple coils. Each of the coils has first and second opposing sides of conductor provided in the slots. A conductor in a second side of a first phase first coil is interspersed with a conductor in a second phase first coil. The conductors in a first side of the first phase first coil are arranged adjacent to one another and non-interspersed.

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Номер записи: 20
29-11-2012 дата публикации

Multi gap inductor core, multi gap inductor, transformer and corresponding manufacturing method and winding

Номер: US20120299680A1
Автор: Franc Zajc
Принадлежит: Individual

The invention provides a multi gap inductor core, a multi gap inductor, transformer, and a corresponding manufacturing method and winding. The multi gap inductor core ( 1; 1′; 1″; 1 ′″), comprises a first plurality of magnetic lamination sheets ( 2 a - 2 g; 2 a ′- 2 m′; 2 a ″- 2 n ″) made of magnetic core material arranged in a stack and a second plurality of fixing layers ( 3 a - 3 f ; 3 a ′- 3 l′; 3 a ″- 3 l ″) made of a fixing material. Each fixing layer ( 3 a - 3 f; 3 a ′- 3 l′; 3 a ″- 3 l ″) is arranged between a corresponding pair of adjacent magnetic lamination sheets ( 2 a - 2 g; 2 a ′- 2 m′; 2 a ″- 2 n ″) and includes mechanical spacer means ( 4; 4 ′) which define a gap (G) having a predetermined thickness (d 2 ) between a corresponding pair of adjacent magnetic lamination sheets ( 2 a - 2 g; 2 a ′- 2 m′; 2 a ″- 2 n ″).

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Номер записи: 21
27-12-2012 дата публикации

Method of manufacturing laminated core

Номер: US20120324719A1
Автор: Hidemi Sasaki, Masayuki Okabe
Принадлежит: Mitsui High Tec Inc

A method including: a first step of preheating a rotor core body 12 ; a second step of attaching a cull plate 21 onto a surface of the body 12 removed from a preheating device 20 ; a third step of placing the body 12 in a resin-sealing mold 19 ; a fourth step of heating and liquefying resin 15 in resin reservoir pots 29 by the mold 19 ; a fifth step of extruding the liquefied resin 15 into plural magnet insertion holes 13 and curing the resin 15 ; and a sixth step of ejecting a laminated rotor core 10 from the mold 19 and detaching the plate 21 , wherein the second step of attaching the plate 21 and the sixth step of detaching the plate 21 are performed at a same station 22 , and the plate 21 detached at the sixth step is used as the plate 21 at the second step.

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Номер записи: 22
10-01-2013 дата публикации

Motor and method of manufacturing motor

Номер: US20130009494A1
Автор: Yoshiaki Oguma
Принадлежит: Nidec Corp

A rotating portion of a motor includes a rotor holder including a cylindrical portion arranged to be coaxial or substantially coaxial with a central axis, a plurality of magnets arranged in a circumferential direction on an inner circumferential surface of the cylindrical portion, and a resin portion arranged on a surface of the rotor holder. The resin portion includes a plurality of ribs arranged at regular or substantially regular intervals in the circumferential direction along the inner circumferential surface of the cylindrical portion, and an outer tubular portion arranged to cover an outer circumferential surface of the cylindrical portion. Each rib and the outer tubular portion are arranged to be defined by a single monolithic member such that each rib and the outer tubular portion are continuous with each other. Each magnet is preferably arranged between a separate pair of adjacent ones of the ribs.

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Номер записи: 23
14-02-2013 дата публикации

Method for assembling part of a generator, generator and wind turbine

Номер: US20130038070A1
Автор: Kurt Andersen
Принадлежит: SIEMENS AG

A method for assembling part of a generator is disclosed. A magnet assembly with at least one magnet and a mounting plate is fastened to a base element by welding the mounting plate to the base element.

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Номер записи: 24
14-02-2013 дата публикации

Modular stator for tubular electric linear motor and method of manufacture

Номер: US20130038144A1
Автор: Alan Charles McAleese, Michael Hautop Nielsen, Richard Edward Clark, Sarah Duggan
Принадлежит: Individual

A modular design for and method of constructing long stators for tubular electric linear motors having many sets of coils. In certain embodiments, the stator is made by assembling a multiplicity of identical coil modules which are combined to form a stator of whatever length may be required. In some embodiments, coil modules containing the coils are connected by intermediate connectors. In those embodiments, the sum of the effective length of the coil module and the effective length of the intermediate connector must be an integral multiple of the pole pitch of the magnets in the motor's mover. In some embodiments, longitudinal grooves are formed in the coil modules to provide paths for coolant.

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Номер записи: 25
14-02-2013 дата публикации

Stator Manufacturing Method for a Motor and Stator Utilizing the same

Номер: US20130038168A1
Автор: Alex Horng, Tso-Kuo Yin
Принадлежит: Sunonwealth Electric Machine Industry Co Ltd

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

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Номер записи: 26
14-03-2013 дата публикации

Stator manufacturing method and stator

Номер: US20130062973A1
Автор: Joji Yoshimura, Koji Nakanishi, Yasuhiro Ueno
Принадлежит: Toyota Motor Corp

In a stator manufacturing method to manufacture a stator in which divided-core assemblies are arranged in a cylindrical shape, each of which includes a divided-core member having a teeth portion on which a coil is wound. In this method, the divided-core assemblies are inserted in the cylindrical shape into a fixed mold, resin sheets containing glass fibers or carbon fibers are disposed on coil-end portions of the cylindrically-arranged divided-core assemblies, and a slide part of a movable mold applies pressure to and molds the resin sheets, thereby combining the divided core assemblies into a single unit. The movable mold is operated to position the divided-core assemblies in place by a cylindrical part and then apply pressure to and mold the resin sheets by the slide part.

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Номер записи: 27
14-03-2013 дата публикации

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

Номер: US20130062989A1
Автор: Barry A. Lee, Thomas R. Neuenschwander
Принадлежит: LH Carbide Corp

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

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Номер записи: 28
14-03-2013 дата публикации

Integrated Direct Drive Starter/Generator for Turbines

Номер: US20130064688A1
Автор: Cox Rodney T., Edelson Jonathan, Walitzki Hans
Принадлежит:

A starter/generator machine for a turbine with a turbine enclosure, an air duct, and a plurality of fan blades is provided. The starter/generator machine includes a plurality of stator elements spaced at intervals in a ring shape adjacent to the air duct and a plurality of rotor elements mounted on the fan blades. The stator elements and the rotor elements are mounted to interact magnetically to exert a force sufficient to move the rotor elements. The stator elements are shaped to minimize air flow interference and are formed with a core, at least one pole, and multiple windings. The spacing between the stator elements and the rotor elements forms an air gap on the order of 5-10 mm, and the number of stator elements is different from the number of rotor elements. 1. A method of producing power using a starter/generator machine for a turbine with a turbine enclosure , an air duct , and a plurality of fan blades within said air duct , comprising:a. providing a plurality of stator elements spaced at intervals in a ring shape adjacent to an air duct in a turbine, shaped to minimize air flow interference, and mounted to interact magnetically with each of a plurality of a number of rotor elements different from a number of said plurality of stator elements to exert a force sufficient to move said rotor elements;b. mounting each of said plurality of rotor elements inward of a tip of said fan blades in a location selected to interact magnetically with each of said stator elements;c. forming each of said plurality of stator elements to have at least one pole, a U-shaped or C-shaped core with salient poles facing said fan blades, and multiple windings;d. forming each of said plurality of rotor elements from a ferro-magnetic material to form flux guides thick enough to carry all of the flux generated by the magnetic interaction of the stator elements and the rotor elements and spacing each of said rotor elements a distance from each of said stator elements to form an air gap ...

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Номер записи: 29
21-03-2013 дата публикации

MOTOR POWER DISTRIBUTION APPARATUS

Номер: US20130069461A1
Автор: ARAI Kenji
Принадлежит: NISSAN MOTOR CO., LTD.

A motor power distribution apparatus includes first insulating holders and second insulating holders. The first insulating holders are disposed to retain every other one of a plurality of stacked power distribution members that are unified by insert molding. The second insulating holders are disposed to retain power distribution members other than the power distribution members retained by the first insulating holders. 1. A motor power distribution apparatus comprising:first insulating holders that are disposed to retain every other one of a plurality of stacked power distribution members of a motor that are unified by insert molding; andsecond insulating holders that are disposed to retain power distribution members other than the power distribution members retained by the first insulating holders.2. The motor power distribution apparatus according to claim 1 , whereinthe plurality of stacked power distribution members include three bus bars which distribute current to winding wires of a stator corresponding to each of a plurality of phases of the motor, and a neutral bus bar which connects neutral points of each of the winding wires;the first insulating holders retain the outermost peripheral bus bar and the third from outermost peripheral bus bar in a radial direction of the stator; andthe second insulating holders retain the second from outermost peripheral bus bar and the innermost peripheral bus bar in the radial direction of the stator.3. The motor power distribution apparatus according to claim 2 , whereinthe first insulating holders and the second insulating holders respectively include three slots for retaining the power distribution members; andthe slot at a center of the first and second insulating holders is larger in width and deeper in depth than the slots at either side of the first and second insulating holders.4. The motor power distribution apparatus according to claim 1 , whereinthe plurality of stacked power distribution members includes three ...

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Номер записи: 30
21-03-2013 дата публикации

Rotor of motor, method of producing the rotor, inner rotor-type brushless motor and method of producing the motor

Номер: US20130069469A1
Автор: Keisuke Wakabayashi, Masayuki Kodani, Nobuyuki Kabasawa, Yasuaki Motegi
Принадлежит: Shinano Kenshi Co Ltd, Yamada Manufacturing Co Ltd

The rotor of the present invention is capable of improving magnetic characteristics, general versatility and ease of assembly. The rotor comprises: a rotor shaft; a ring-shaped rotor magnet being disposed coaxially with the rotor shaft; and a non-magnetic cover covering an outer circumference of the rotor magnet. The rotor magnet and the cover are integral-molded with molding resin in a state where an outer circumference of the cover is exposed and both end parts and an inner circumference of the rotor magnet are covered with the molding resin.

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Номер записи: 31
04-04-2013 дата публикации

Assembly for positioning a rotor retaining ring

Номер: US20130081260A1
Автор: Cecil James Pollock, Jeremy Daniel Van Dam, Ken Ivcar Salas Nobrega, Ronald George Shillington
Принадлежит: General Electric Co

An assembly for positioning a retaining ring includes a mandrel having an outer diameter smaller than an outer diameter of a rotor. The assembly also includes a seal assembly for sealing a circumferential retaining ring around the mandrel or the rotor, the seal assembly comprising a pair of seal plates situated around opposing ends of the retaining ring. Further, the assembly includes a hydraulic expansion device for providing a fluid pressure for hydraulically expanding the retaining ring until an inner diameter of the retaining ring is greater than the outer diameter of the rotor. Furthermore, the assembly includes a displacement device for providing axial movement of the seal assembly and the retaining ring.

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Номер записи: 32
04-04-2013 дата публикации

CORELESS ELECTROMECHANICAL DEVICE, MOBILE UNIT, ROBOT, AND MANUFACTURING METHOD OF CORELESS ELECTROMECHANICAL DEVICE

Номер: US20130082560A1
Автор: NAKAMURA Kazuyoshi, TAKEUCHI Kesatoshi
Принадлежит: SEIKO EPSON CORPORATION

A coreless electromechanical device includes permanent magnets provided in a first member, M (M is an integer number equal to or more than two) phases of α-wound air core electromagnetic coils provided in a second member, and a coil back yoke provided in the second member, wherein the electromagnetic coil has two effective coil regions that generate force for relative rotational transfer of the first member with respect to the second member and two coil end regions, and the coil end regions of at least the (M-1) phases of electromagnetic coils of the M phases of electromagnetic coils are bent toward an inner circumference side or an outer circumference side of a cylindrical surface containing the cylindrical region so as not to interfere with the coil end regions of the other phases of electromagnetic coils. 1. A coreless electromechanical device having first and second cylindrical members movable relative to each other , the device comprising:permanent magnets provided in the first member;M (M is an integer number equal to or more than two) phases of α-wound air core electromagnetic coils provided in the second member; anda coil back yoke provided in the second member,wherein the electromagnetic coil has two effective coil regions that generate force for relative rotational transfer of the first member with respect to the second member and two coil end regions,a total of the M electromagnetic coils respectively selected for each phase from the M phases of electromagnetic coils form a coil sub-assembly, shapes of the effective coil regions of the M phases of electromagnetic coils respectively have the same shape, the effective coil regions extend along a direction in parallel to an axis direction of the rotation in a cylindrical region between the permanent magnets and the coil back yoke, and the whole M phases of electromagnetic coils are arranged in a circumference direction of the cylindrical region,', 'a distance between the two effective coil regions of the ...

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Номер записи: 33
11-04-2013 дата публикации

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

Номер: US20130088127A1
Автор: Masaaki Nishiyama, Masahiko Kobayashi, TAKASHI Ogawa, Yasuji Echizen, Yuichi Yoshikawa
Принадлежит: Panasonic Corp

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

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Номер записи: 34
18-04-2013 дата публикации

Cast rotor and method

Номер: US20130093282A1
Автор: Kevin P. Coleman, Qigui Wang
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method for forming a rotor assembly including a cast rotor frame includes positioning a preheated rotor core defining a plurality of passages in a mold cavity such that the mold cavity and the rotor core define the rotor frame including a plurality of conductor bars defined by the plurality of passages in fluid communication with first and second end portions of the mold cavity. Molten metal is quiescently introduced into the mold cavity through an ingate and simultaneously flowed through the plurality of passages prior to filling at least one of the first and second end portions of the mold cavity to form the cast rotor frame. Entrained air and impurities may be displaced from the passages by the flow of molten metal and vented or entrapped by a biscuit. The rotor frame and conductor bars thus formed may be characterized by high conductivity, negligible porosity, and minimal oxides.

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Номер записи: 35
02-05-2013 дата публикации

Method for the automatic adjustment of a resolver of an electric machine

Номер: US20130104386A1
Автор: Bertrand Vedy, Cedric Savio, Jean-Louis Linda
Принадлежит: Compagnie Generale des Etablissements Michelin SCA, Michelin Recherche et Technique SA Switzerland

A method for adjusting a resolver of an electric machine is provided. A resolver rotor is an adjustable element of the resolver and mounted by friction on a support so that a relative angular position with respect to the support may be adjusted by exerting a torque between the resolver rotor and the support. The method includes steps of: measuring an offset angle of the resolver to be corrected; as long as the offset is not less than an predetermined tolerance, locking the resolver rotor with respect to a resolver stator; launching the correction by energizing a main stator of the electric machine so that the electric machine develops a correction torque causing rotation of the resolver rotor with respect to a shaft of the electric machine by the measured offset; and freeing the resolver rotor. Subsequently the method returns to the measuring step.

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Номер записи: 36
02-05-2013 дата публикации

METHOD AND APPARATUS FOR ACTIVATING AN ELECTRIC MACHINE, AND ELECTRIC MACHINE

Номер: US20130106223A1
Автор: FASOLO Alessandro, Kaessner Thomas
Принадлежит: WILIC S.AR.L.

A method of activating an electric machine having a stator, and a rotor which rotates about an axis with respect to the stator; the stator having a plurality of stator segments arranged about the axis; the rotor having modules made of magnetizable material and arranged about the axis; and the method including the steps of connecting the rotor to the stator by means of a bearing; and magnetizing the modules of magnetizable material when the rotor is connected to the stator. 1. A method of activating an electric machine , said method comprising: [ i) a plurality of modules of magnetizable material, and', '(ii) a pair of magnetic guides having respective first faces and configured to conduct a magnetic flux coupled to said respective modules, and, '(a) the rotor includes a plurality of rotor segments, each rotor segment including;'}, (i) an outer cylinder, and', '(ii) a plurality of slidably removable stator segments arranged about the first axis, wherein at least two of the plurality of stator segments are fitted to the outer cylinder of the stator to define a seat configured to house at least another one of said stator segments;, '(b) the stator includes], 'coupling a rotor to a stator, the rotor configured to rotate about axis with respect to the stator, whereininserting a magnetizing device in the seat, the magnetizing device having two second faces and configured to provide the magnetizing flux;positioning the magnetizing device such that the second faces of the magnetizing device face the first faces of at least one of the pairs of magnetic guides; andafter coupling the rotor to the stator, magnetizing at least one of said plurality of modules of magnetizable material.2. The method of claim 1 , which includes slidably moving the magnetizing device along the rotor segment such that the second faces of the magnetizing device face the first faces of at least another one of the pairs of magnetic guides.3. The method of claim 1 , wherein the modules of the rotor are ...

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Номер записи: 37
09-05-2013 дата публикации

OUTER BODY OF AN ELECTROMECHANICAL ENERGY CONVERTER

Номер: US20130113319A1
Автор: Isel Alain-Bernard, Klumpp Daniel, Suarez-Seminario Dariusz
Принадлежит: ROBERT BOSCH GMBH

In an electromechanical energy converter having an outer body and an inner body, which are mounted movably relative to one another about an axis of rotation, an outer body according to the invention surrounds an annular structural element, a permanent magnet and a support ring which is received concentrically in the structural element. The support ring comprises a recess to receive the permanent magnet, and the recess has a boundary surface which extends parallel as to a radius of the axis of rotation. 1100100105100. An outer body () of an electromechanical energy converter having an outer body () and having an inner body which are mounted so as to be movable relative to one another about an axis of rotation () , wherein the outer body () comprises the following:{'b': '110', 'an annular structural element ();'}{'b': '155', 'a permanent magnet (); and'}{'b': 150', '110, 'a support ring () which is accommodated concentrically in the structural element ();'}{'b': 150', '310', '155', '310', '330', '105, 'wherein the support ring () comprises a cutout () for receiving the permanent magnet () and the cutout () has a delimiting surface () which extends parallel to a radius of the axis of rotation ().'}2100110145155145110105. The outer body () as claimed in claim 1 , characterized in that the structural element () has a radial inner surface () for mounting the permanent magnet () in a radially outward direction claim 1 , wherein the inner surface () of the structural element () extends perpendicular to a radius of the axis of rotation ().3100155105. The outer body () as claimed in claim 2 , characterized in that the permanent magnet () is cuboidal claim 2 , wherein largest side surfaces of the permanent magnet extend perpendicular to a radius of the axis of rotation ().4100155. The outer body () as claimed in claim 1 , characterized in that the permanent magnet () comprises a lanthanoid.5100150110135160105. The outer body () as claimed in claim 1 , characterized in that the ...

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Номер записи: 38
09-05-2013 дата публикации

TAPERED ROTOR ASSEMBLY

Номер: US20130113324A1
Автор: Picard Johannes Wilhelm, Shepard Charles
Принадлежит: HAMILTON SUNDSTRAND CORPORATION

A rotor assembly for an electric machine includes an outer sleeve and a plurality of permanent magnets disposed in the outer sleeve. An inner sleeve is located inboard of the plurality of permanent magnets and includes a plurality of inner sleeve segments that form a tapered inner sleeve surface. A rotor shaft is located inboard of the inner sleeve and has a tapered outer shaft surface engageable with the tapered inner sleeve surface in an interference fit to force the plurality of inner sleeve segments into engagement with the plurality of permanent magnets. 1. A rotor assembly for an electric machine comprising:an outer sleeve;a plurality of permanent magnets disposed in the outer sleeve;an inner sleeve disposed inboard of the plurality of permanent magnets including a plurality of inner sleeve segments that form a tapered inner sleeve surface; anda rotor shaft disposed inboard of the inner sleeve having a tapered outer shaft surface engageable with the tapered inner sleeve surface in an interference fit to force the plurality of inner sleeve segments into engagement with the plurality of permanent magnets.2. The rotor assembly of claim 1 , wherein the outer shaft surface is tapered at less than about 1 degree claim 1 , along an axial length of the rotor shaft.3. The rotor assembly of claim 1 , further comprising a friction-reducing coating on the inner sleeve.410. The rotor assembly of claim 1 , wherein the plurality of inner sleeve segments comprises or more inner sleeve segments.5. The rotor assembly of claim 4 , wherein the plurality of inner sleeve segments comprises between about 10 and about 20 inner sleeve segments.6. The rotor assembly of claim 1 , wherein the plurality of permanent magnets comprises 20 or more permanent magnets.7. The rotor assembly of claim 6 , wherein the plurality of permanent magnets comprises between about 20 and about 40 permanent magnets.8. The rotor assembly of claim 1 , wherein the plurality of inner sleeve segments are arranged ...

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Номер записи: 39
16-05-2013 дата публикации

ELECTRICAL MOTOR INCORPORATING INTERNAL ROTOR COOLING

Номер: US20130119829A1
Автор: Andersen Soeren Boegh, Lyquist Joergen
Принадлежит:

An electrical motor includes a shaft and a rotor mounted upon the shaft. The shaft includes an inlet for cooling air, and an internal passageway for conducting cooling airflow through the inlet caused by rotation of the shaft. The passageway includes a first portion extending axially through the shaft along a longitudinal portion of the shaft upon which portion the rotor is mounted, and a second portion extending radially outwardly from the first portion and leading to an airflow outlet on an outer surface of the shaft. 17-. (canceled)8. An electrical motor , comprising: an inlet for cooling air, and', 'an internal passageway for conducting cooling airflow through the inlet caused by rotation of the shaft, wherein the passageway includes a first portion extending axially through the shaft along a longitudinal portion of the shaft upon which portion the rotor is mounted, and a second portion extending radially outwardly from the first portion and leading to an airflow outlet on an outer surface of the shaft., 'a shaft and a rotor mounted upon the shaft, the shaft further comprising9. The motor according to claim 8 , wherein the shaft has a central hole extending axially to one end of the shaft claim 8 , the central hole forming the inlet at the end of the shaft and defining the first portion of the passageway claim 8 , and wherein the shaft further has a plurality of radial holes extending from the first portion of the passageway defined by the central hole to the outer surface of the shaft claim 8 , the radial holes defining the second portion of the passageway.10. The motor according to claim 8 , wherein the cooling air is ambient air.11. The motor according to claim 8 , wherein the shaft has a rotation speed greater than 20000 revolutions per minute.12. The motor according to claim 8 , wherein the motor is an induction motor.13. A method of manufacturing an electrical motor claim 8 , comprising:manufacturing a shaft having an inlet for cooling air and an internal ...

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Номер записи: 40
23-05-2013 дата публикации

Method of winding a stator core with a continuous conductor having a rectangular cross-section and a stator core

Номер: US20130127270A1
Автор: Mark A. Stephenson
Принадлежит: REMY TECHNOLOGIES LLC

A method of inserting a continuous conductor having a rectangular cross-section into slot segments formed in a stator core includes deforming in a first direction a core member having a first end portion that extends to a second end portion to widen an opening at end portions of the slot segments, inserting one or more continuous conductors having a rectangular cross-section into select ones of the slot segments, and deforming in a second direction the core member to narrow the opening at end portions of the slot segments.

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Номер записи: 41
23-05-2013 дата публикации

ROTOR OF AN ELECTRIC MOTOR AND MANUFACTURING METHOD OF SAME

Номер: US20130127283A1
Автор: Kitagawa Katsuhide, MATSUMOTO Masashi, YOSHIDA Makoto
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A rotor of an electric motor is provided in which a cylindrical rotor core that is formed by stacked magnetic steel sheets and includes permanent magnets is crimp-fixed to a rotor shaft. The rotor core is directly fixed, in the axial direction of the rotor shaft, between a flange portion that is provided on an outer periphery of the rotor shaft and abuts against one axial end surface of the rotor core, and a crimping member that is crimp-fixed on the rotor shaft while pressure-contacting the other axial end surface of the rotor core. 1. A rotor of an electric motor , comprising:a rotor core that is formed by stacked magnetic steel sheets and includes a permanent magnet;a rotor shaft to which the rotor core is fixed;a contact portion that is provided on an outer periphery of the rotor shaft and that abuts against one axial end surface of the rotor core; anda crimping member that is crimp-fixed on the rotor shaft, whereinthe rotor core is directly fixed, in an axial direction of the rotor shaft, between the contact portion and the crimping member.2. The rotor according to claim 1 , wherein a permanent magnet insertion hole for inserting the permanent magnet is formed extending in the axial direction in the rotor core claim 1 , and a weight-reducing hole for reducing a weight of the rotor is formed extending in the axial direction claim 1 , in a position radially inward of the permanent magnet insertion hole claim 1 , in the rotor core; and the weight-reducing hole is open at least at one axial end surface of the rotor core.3. The rotor according to claim 2 , wherein the permanent magnet inserted into the permanent magnet insertion hole is fixed in place by resin material filled between an inner wall of the permanent magnet insertion hole and a side surface of the permanent magnet.4. The rotor according to claim 3 , wherein an open portion claim 3 , in the axial end surface of the rotor claim 3 , of the permanent magnet insertion hole is closed off by the resin ...

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Номер записи: 42
23-05-2013 дата публикации

Rotor and method of forming same

Номер: US20130127291A1
Автор: James G. Schroth, John S. Agapiou, Thomas A. Perry
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method of forming a rotor, wherein the rotor includes a plurality of conductor bars each joined to a shorting ring, includes disposing an end of each of the plurality of conductor bars within a respective one of a plurality of cavities defined by the shorting ring. The method also includes, after disposing, deforming the end of each of the conductor bars, and brazing the end of each of the conductor bars to the shorting ring to form the rotor. A rotor includes a shorting ring defining a plurality of cavities therein each having a shape, a plurality of conductor bars each having an end disposed within a respective one of the cavities and joined to the shorting ring, wherein the end is deformable to the shape, and a braze material disposed in contact with the end of each of the conductor bars within a respective one of the cavities.

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Номер записи: 43
30-05-2013 дата публикации

STATOR AND ASSEMBLY METHOD

Номер: US20130134808A1
Автор: IKAHEIMO Jouni, Jäppinen Jari, Pekola Jari
Принадлежит: ABB Oy

An exemplary stator disk of an electric motor stator includes a set of recesses. Each recess being configured to receive a cooling pipe. The stator disk includes one or more positioning elements for aligning the stator disk with another stator disk. The one or more positioning elements being positioned to the stator disk such that when the stator disk is set to a rotated position with respect to the other stator disk in order to align the recesses of the disks for receiving of cooling pipes, the positioning elements of the two disks become only partly aligned with each other. 1. A stator disk of an electric motor stator , comprising:a set of recesses, each recess being configured to a receive a cooling pipe; andone or more positioning elements for aligning the stator disk with another stator disk, the one or more positioning elements being positioned to the stator disk such that when the stator disk is set to a rotated position with respect to the other stator disk in order to align the recesses of the disks for receiving cooling pipes, the positioning elements of the two disks become only partly aligned with each other.2. The stator disk according to claim 1 , wherein when the positioning elements are aligned with other claim 1 , a pair of recesses of the disks hosting a same cooling pipe cause substantially opposite pressing forces on the cooling pipe.3. The stator disk according to claim 1 , wherein the positioning element is configured to receive a positioning member for alignment of the positioning elements of the disks to each other.4. The stator disk according to claim 1 , wherein the stator disk comprises coil slots claim 1 , which coil slots become misaligned with coil slots of a similar stator disk when the two disks are in a rotated position while the recesses of the disks are aligned with each other for receiving a cooling pipe therein.5. The stator disk according to claim 1 , wherein the recess for receiving the cooling pipe is a groove on the outer ...

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Номер записи: 44
30-05-2013 дата публикации

METHOD OF CONSTRUCTING CORE WITH TAPERED POLE PIECES AND LOW-LOSS ELECTRICAL ROTATING MACHINE WITH SAID CORE

Номер: US20130134825A1
Автор: Ertugrul Nesimi, GAYLER John Andrew, HASEGAWA Ryusuke, Kloeden Stephen Robert
Принадлежит: Glassy Metal Technologies Ltd.

An electrical rotating machine having a stator or a rotor with a core that includes a plurality of tapered pole pieces is a low loss electrical machine that results in improvements such as higher output power, higher torque and higher efficiency than a machine that does not have tapered pole pieces. The stator or the rotor with tapered pole pieces may be applied to a power train in automobiles, power tools, and various appliances. The core is constructed by winding an iron-based amorphous magnetic alloy ribbon to form a cylinder-shaped core, then heating, impregnating with resin, and machining by cutting the cylinder-shaped core to form a plurality of tapered pole pieces being separated in an alternating manner by a plurality of slots. The cores having an outside diameter of 50 mm-1200 mm, a tapered angle of 10°-45°, and a slot depth of 10 mm-210 mm are advantageous. 1. A method of constructing a core with tapered pole pieces , comprising:winding an iron-based amorphous magnetic alloy ribbon concentrically to form a cylinder-shaped toroidal core, said core having an outside diameter, an inside diameter, a first flat side, a second flat side, an outer circumference and an inner circumference;heat-treating said cylinder-shaped toroidal core, with or without a magnetic field, at a temperature that is below a crystallization temperature of said ribbon to form a heat-treated core;impregnating said heat-treated core with a resin to form an impregnated core;machining said first flat side of said impregnated core to form a tapered surface so that said outer circumference is being machined to be shorter than said inner circumference, and said tapered surface is at a taper angle that is measured with respect to said first flat side; andmachining by cutting said tapered surface to form a plurality of pole pieces, each of said plurality of pole pieces having a height that is measured on said inner circumference, an outer side diameter, and an inner side diameter, each of said ...

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Номер записи: 45
30-05-2013 дата публикации

METHOD FOR MANUFACTURING STATOR FOR MOTOR AND STATOR FOR MOTOR

Номер: US20130134827A1
Автор: Kageyama Takashi, Nagahama Takaya, Nagase Shigeki, Naka Masami, Shibata Yoshiyuki
Принадлежит: JTEKT CORPORATION

Teeth coupling portions of a ring-shaped teeth member are demagnetized by supplying a nonmagnetic element to the teeth coupling portions while melting the teeth coupling portion by application of heat. Then, an inner peripheral portion of the ring-shaped teeth member is pressed radially outward. Therefore, it is possible to plastically deform the teeth coupling portions easily, so that the ring-shaped teeth member and a ring-shaped yoke member are easily fitted together. Accordingly, there is provided a method for manufacturing a stator for a motor, in which the amount of leakage flux is reduced and which has favorable magnetic characteristics. 1. A method for manufacturing a stator for a motor ,the stator includinga ring-shaped teeth member that has a plurality of teeth which extend radially outward and around which coils are wound, and teeth coupling portions that couple radially inner ends of the adjacent teeth to each other, anda ring-shaped yoke member and that has a plurality of teeth engaged portions formed in an inner peripheral portion of the ring-shaped yoke member, the teeth of the ring-shaped teeth member being engageable with the teeth engaged portions,the method comprising:a coil winding step in which the coils are wound around the teeth of the ring-shaped teeth member;a positioning step in which the ring-shaped teeth member is fitted into the ring-shaped yoke member and the teeth are aligned with the teeth engaged portions; andan assembly step in which the teeth are engaged with the teeth engaged portions by pressing an inner peripheral portion of the ring-shaped teeth member radially outward and plastically deforming the teeth coupling portions, thereby fitting the ring-shaped teeth member and the ring-shaped yoke member together.2. The method for manufacturing the stator for a motor according to claim 1 , further comprising:a heating step in which the teeth coupling portions are heated, and which is performed before the assembly step.3. The method ...

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Номер записи: 46
06-06-2013 дата публикации

ELECTRIC ROTATING MACHINE AND METHOD FOR MANUFACTURING A STATOR CORE FOR THE ELECTRIC ROTATING MACHINE

Номер: US20130140930A1
Автор: Kakugawa Shigeru, Kikuchi Satoshi, Koka Hidetoshi, Maki Kohji, Matsunobu Yutaka, Sugimoto Shinji
Принадлежит:

Electric rotating machine suppressing narrowing of a magnetic path caused by a skin effect in a housing to increase torque, including stator core having e.g. core back and teeth; stator windings wound around the teeth; stator including stator core and stator windings; housing composed of a magnetic body accommodating the stator; rotor disposed for rotation on an inner circumferential side of the stator. An air gap is provided between an inside wall of the housing and an outer circumferential surface of core back. The core back has projections on a radial back surface of a portion where the teeth are provided. The projections are each provided to be continuous in an axial direction and have tip portions in contact with inside wall of the housing. The air gap may be defined by the inside wall of the housing, the outer circumferential surface of the core back and the projections. 1. An electric rotating machine comprising:a stator core including a core back and teeth;stator windings wound around the teeth;a stator including the stator core and the stator windings;a housing composed of a magnetic body and accommodating the stator; anda rotor disposed for rotation on an inner circumferential side of the stator;wherein an air gap is provided between an inside wall of the housing and an outer circumferential surface of the core back.2. The electric rotating machine according to claim 1 ,wherein the core back has a projection on a radial back surface of a portion where the teeth are provided,the projection is provided so as to be continuous in an axial direction,the projection has a tip portion in contact with the inside wall of the housing, andthe air gap is defined by the inside wall of the housing, the outer circumferential surface of the core back and the projection.3. The electric rotating machine according to claim 1 ,wherein the stator core is composed of a plurality of electromagnetic steel plates stacked in the axial direction,the electromagnetic steel plate has ...

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Номер записи: 47
06-06-2013 дата публикации

Rotating Electrical Machine and Manufacturing Method Thereof

Номер: US20130140934A1
Автор: Takashi Ishigami, Yuichiro Tanaka
Принадлежит: HITACHI LTD

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

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Номер записи: 48
06-06-2013 дата публикации

ROTOR OF ELECTRIC MOTOR AND MANUFACTURING METHOD THEREOF

Номер: US20130140939A1
Автор: Asaga Takashi, Sugiyama Toshiya
Принадлежит: AISIN SEIKI KABUSHIKI KAISHA

A rotor of an electric motor comprises a rotor core composed of laminated steel plates and having pin holes; a pair of end plates having insertion holes of a diameter being greater than or equal to the diameter of the pin holes of the rotor core and arranged on opposite sides of the rotor core; and fastening members inserted into the pin holes of the rotor core, fitted in the insertion holes of the pair of end plates, and pressed by staking at opposite end portions thereof, wherein each fastening member has a body portion, main radially-expanded portions continued from the body portion and being larger in diameter than the insertion holes of the end plates, and protrusions continued from the main radially-expanded portions and protruding from the main radially-expanded portions. 17-. (canceled)8. A rotor of an electric motor receiving permanent magnets therein , the rotor comprising;a rotor core composed of laminated steel plates and having pin holes;a pair of end plates having insertion holes of a diameter being greater than or equal to a diameter of the pin holes of the rotor core and arranged on opposite sides of the rotor core; and fastening members inserted into the pin holes of the rotor core, fitted in the insertion holes of the pair of end plates, and pressed by staking at opposite end portions thereof, each fastening member having a body portion, main-radially expanded portions continued from the body portion and being larger in diameter than the insertion holes of the end plates, and protrusions continued from the main radially-expanded portions and protruding from the main radially-expanded portions.9. The rotor of an electric motor described in claim 8 , wherein the fastening members are tightly fitted in the insertion holes of the end plates.10. The rotor of an electric motor described in claim 8 , wherein the protrusions take a taper shape.11. The rotor of an electric motor described in claim 8 , wherein the body portion has subordinate radially- ...

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Номер записи: 49
13-06-2013 дата публикации

Reinforced magnet

Номер: US20130146206A1
Автор: David Michael Jones
Принадлежит: Dyson Technology Ltd

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

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Номер записи: 50
13-06-2013 дата публикации

STATOR FRAME FOR A SUBMERGED LINEAR GENERATOR

Номер: US20130147198A1
Автор: Axelsson Fredrik, Doré Erik, Leijon Mats, Waters Rafael
Принадлежит: SEABASED AB

The invention relates to a stator frame () for a submerged linear generator. According to the invention the stator frame () includes a cylindrical tube of metal with mounting means () for mounting stator packages to the inside wall of the tube. The stator frame () also is the external circumferential wall of the linear generator. The invention also relates to the use of such a stator frame () and to a method for manufacturing a linear generator with such a stator frame (). 112212131415161966. A stator frame () for a submerged linear generator () , wherein the stator frame () includes a cylindrical tube of metal with mounting means ( , , , ) for mounting stator packets () to the inside wall of the tube , which tube when the linear generator () is assembled also forms an outer circumferential wall of the linear generator ().21314151613141513141514141413141514131415. The stator frame according to claim 1 , wherein the mounting means ( claim 1 , claim 1 , claim 1 , ) includes a plurality of axially distributed mounting profiles ( claim 1 , claim 1 , ) on the inside wall of the tube claim 1 , each mounting profile ( claim 1 , claim 1 , ) extending in the circumferential direction and having a first group of receiving slots () for the stator packets claim 1 , which receiving slots () are spaced by inwardly directed radial projections claim 1 , all receiving slots () of one mounting profile ( claim 1 , claim 1 , ) being axially aligned with receiving slots () of the other mounting profiles ( claim 1 , claim 1 , ).313141513. The stator frame according to claim 2 , wherein each mounting profile ( claim 2 , claim 2 , ) is formed by a circumferential rim ().41314. The stator frame according to claim 2 , wherein each rim () has a plurality of recesses forming said receiving slots ().5131415152021612. The stator frame according to claim 2 , wherein each mounting profile ( claim 2 , claim 2 , ) has a second group of receiving slots () for receiving guiding means ( claim 2 , ) for ...

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Номер записи: 51
20-06-2013 дата публикации

ACTUATING DRIVE FOR A MOTOR VEHICLE

Номер: US20130154402A1
Автор: Basavarajappa Madhu S., Cavalie Nicolas, Erices Bernardo, Kunst Frank
Принадлежит:

The invention relates to an actuating drive for a motor vehicle. It is an object of the invention to provide a further developed actuating drive. It is sought in particular for the actuating drive, in one embodiment, to have a small installation space and/or to be protected against the infiltration of dust and moisture. To achieve the object, the actuating drive comprises a drive, for example an electric motor for a drive wheel with an internal thread. The external thread of a spindle extends into the internal thread. By correspondingly rotating the wheel, an end of the spindle can be moved out of a housing of the actuating drive proceeding from a retracted state. Proceeding from the deployed state, the end of the spindle can be moved in the direction of the housing by correspondingly rotating the wheel in the opposite direction. Furthermore, in one embodiment, the actuating drive comprises an emergency unlocking device. 1. An actuator , comprisinga locking bar that can be retracted and extended by means of a spindle,an electric drive unit for retracting and extending the locking bar,a dust-tight and moisture-tight inner space in which the drive unit is located,with a manually actuatable emergency release device comprising a lever and an extension arm connected with the locking bar, anda guide channel for the lever disposed outside of the inner space,the lever comprising a bolt which can be partially pushed through a stationarily disposed sealing ring in order to then arrive in an inner space sealed in a dust-tight and moisture-tight manner,with a sealing ring, which is disposed in a groove and extends peripherally around the locking bar, for a tight connection between the actuator and the component connected to the actuator,the sealing ring being inserted into a peripherally extending groove of the housing of the actuator,with a dust-tight and moisture-tight housing,a single-walled wall portion of the housing being formed by a membrane consisting of a flexible ...

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Номер записи: 52
20-06-2013 дата публикации

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

Номер: US20130154429A1
Автор: Axel MÖHLE, Norbert Schonbauer
Принадлежит: SIEMENS AG

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

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Номер записи: 53
27-06-2013 дата публикации

SPINDLE MOTOR

Номер: US20130162083A1
Автор: JANG Ho Kyung, Kim Sang Won, Kim Yong Sik, Park II Oung
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Disclosed herein is a spindle motor including a shaft forming a rotation center of the motor; a sleeve receiving the shaft therein and rotatably supporting the shaft; a thrust plate coupled to the sleeve in a direction vertical to an axial direction, wherein the thrust plate includes a friction reducing coating layer formed thereon. According to the present invention, the coating layer for reducing friction force is formed on the thrust plate of the spindle motor, such that friction force generated when the spindle motor is repeatedly and sequentially stopped, operated, and stopped may be effectively reduced, such that operational performance of the spindle motor may be improved. 1. A spindle motor comprising:a shaft forming a rotation center of the motor;a sleeve receiving the shaft therein and rotatably supporting the shaft;a thrust plate coupled to the sleeve in a direction vertical to an axial direction;wherein the thrust plate includes a friction reducing coating layer formed thereon.2. The spindle motor as set forth in claim 1 , wherein the friction reducing coating layer is formed on the thrust plate facing the sleeve.3. The spindle motor as set forth in claim 1 , wherein the friction reducing coating layer is formed by a self-assembled monolayer (SAM) coating method.4. The spindle motor as set forth in claim 1 , wherein the friction reducing coating layer is formed by a method including:removing organic materials from the surface of the thrust plate in a hexane solution;performing surface-treatment in a piranha solution for surface activation of the thrust plate;dipping the thrust plate into a solution obtained by diluting an octadecyltrichlorosilane (OTS) SAM solution with a hexadecane solution at a concentration of 1 mM to coat the surface thereof;removing residues from the thrust plate with an isopropyl alcohol (IPA) solution; andwashing the thrust plate with de-ionized (DI) water.5. The spindle motor as set forth in claim 4 , wherein the method further ...

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Номер записи: 54
04-07-2013 дата публикации

Apparatus and methods for magnetizing and demagnetizing magnetic poles in an electrical machine

Номер: US20130169392A1
Автор: Peter Mongeau
Принадлежит: Vestas Wind Systems AS

Apparatus and methods to magnetize and demagnetize the magnetic poles of a rotor assembly for an electrical machine, such as a generator. The apparatus and methods provide for individually magnetize magnetic domains in the permanent magnetic material of the magnetic poles of a rotor assembly of the electrical machine after the electrical machine is installed in a larger assembly. The magnetization system may be used to magnetize and demagnetize the magnetic poles while the rotor assembly is connected with a prime mover, such a rotor of a wind turbine.

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Номер записи: 55
11-07-2013 дата публикации

ARMATURE ASSEMBLY APPARATUS

Номер: US20130174413A1
Автор: Hoell Kenneth Damgaard, Mikkelsen Jakob, Pedersen John Krath, Soerensen Martin Bach
Принадлежит:

An armature assembly apparatus for assembling an armature of an electrical machine is provided. The armature assembly apparatus has an armature holding apparatus to hold a partially assembled armature such that a rotation axis of the armature is horizontal. The armature assembly apparatus has a rotating device for rotating the partially assembled armature about a rotation axis. The armature assembly apparatus also has a ring segment conveyance for conveying an armature ring segment to a mounting position relative to a free ring segment portion of the partially assembled armature. 1. An armature assembly apparatus for assembling an armature of an electrical machine , comprising:an armature holding apparatus for holding a partially assembled armature so that a rotation axis of the armature is horizontal;a rotating device for rotating the partially assembled armature about the rotation axis;an armature ring segment; anda ring segment conveyance for conveying the armature ring segment to a mounting position relative to a free ring segment portion of the partially assembled armature.2. The armature assembly apparatus according to claim 1 , wherein the rotating device is realised to rotate the partially assembled armature about its rotation axis.3. The armature assembly apparatus according to claim 1 , wherein the armature holding apparatus comprises a connecting device for detachably connecting the partially assembled armature to the rotating device.4. The armature assembly apparatus according to claim 1 , wherein the rotating device comprises a meshed gear arrangement.5. The armature assembly apparatus according to claim 1 , wherein the rotating device is realised to rotate the partially assembled armature by a radial amount corresponding to a radial width of a free ring segment portion.6. The armature assembly apparatus according to claim 1 , further comprising an adjusting device for bringing the armature ring segment into the mounting position on the free ring ...

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Номер записи: 56
25-07-2013 дата публикации

MANUFACTURING METHOD OF LAMINATED IRON CORE

Номер: US20130186158A1
Автор: MYOJIN Iwao
Принадлежит: MITSUI HIGH-TEC , INC.

There is provided a manufacturing method of a laminated iron core which is formed of a strip-shaped iron core piece. The strip-shaped iron core piece includes segment iron core pieces connected through a joint positioned in a radial outside, and each of the segment iron core pieces has an artuate shape. The joint by which adjacent segment iron core pieces are connected is folded and lateral ends of the adjacent segment iron core pieces are aligned. The strip-shaped iron core piece is spirally wound while circumferentially shifting mutual joints formed on vertical adjacent layers. Crush processing is performed for flattening a bulged portion in a thickness direction of the segment iron core pieces formed at a time of folding the joint, and the crush processing is performed simultaneously with a time when or after mutual segment iron core pieces arranged vertically are crimped and laminated. 1. A manufacturing method of a laminated iron core which is formed of a strip-shaped iron core piece , whereinthe strip-shaped iron core piece includes segment iron core pieces which are connected through a joint positioned in a radial outside, and each of the segment iron core pieces has an artuate shape with respectively concentric outer and inner peripheries having different radii,the manufacturing method comprising:folding the joint by which adjacent segment iron core pieces are connected and aligning lateral ends of the adjacent segment iron core pieces;spirally winding the strip-shaped iron core piece while circumferentially shifting mutual joints formed on vertical adjacent layers; andcrimping and laminating the strip-shaped iron core piece through crimp parts formed on the segment iron core pieces, thereby forming the laminated iron core, whereinthe manufacturing method further comprises crush processing for flattening a bulged portion in a thickness direction of the segment iron core pieces formed at a time of folding the joint, the crush processing being performed ...

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Номер записи: 57
25-07-2013 дата публикации

ROTOR HAVING DIVIDABLE CORE FOR ELECTRIC MOTOR AND PRODUCTION METHOD THEREOF

Номер: US20130187505A1
Автор: SENOO Tatsuya
Принадлежит: FANUC Corporation

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

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Номер записи: 58
25-07-2013 дата публикации

STATOR FOR ELECTRIC ROTATING MACHINE AND METHOD OF MANUFACTURING THE SAME

Номер: US20130187509A1
Автор: Nakamura Shigenobu
Принадлежит: Denso Corporation

Disclosed is a method of manufacturing a stator for an electric rotating machine. The method includes the steps of: (1) forming a plurality of planar electric wires, each of the planar electric wires including a plurality of in-slot portions to be received in slots of a stator core and a plurality of turn portions to be located outside of the slots to connect the in-slot portions; (2) rolling each of the planar electric wires through plastic deformation into a spiral or circular-arc shape; (3) forming a hollow cylindrical stator coil by assembling the rolled electric wires through operations of making relative axial movement therebetween; and (4) assembling the stator core and the stator coil together to form the stator. 17-. (canceled)8. A stator for an electric rotating machine , the stator comprising:a hollow cylindrical stator core having a plurality of slots that are formed in a radially inner surface of the stator core and spaced in a circumferential direction of the stator core; anda stator coil mounted on the stator core,whereinthe stator coil is made by:forming a plurality of planar electric wires, each of the planar electric wires including a plurality of in-slot portions to be received in the slots of the stator core and a plurality of turn portions to be located outside of the slots to connect the in-slot portions;rolling each of the planar electric wires through plastic deformation thereof into a spiral or circular-arc shape; andassembling the rolled electric wires through relative axial movements therebetween to align the in-slot portions of at least two rolled electric wires.9. The stator as set forth in claim 8 , wherein each of the planar electric wires is formed to include a plurality of first bulges claim 8 ,each of the first bulges being formed, on a surface of one of the in-slot portions of the planar electric wire or a surface of a portion of the planar electric wire which falls on an imaginary line extending straight from the in-slot portion, ...

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Номер записи: 59
01-08-2013 дата публикации

DIRECT-CURRENT MOTOR, COIL WINDING METHOD FOR DIRECT-CURRENT MOTOR, AND METHOD FOR MANUFACTURING DIRECT-CURRENT MOTOR

Номер: US20130193795A1
Автор: KAWAI Keita, Kojima Hiroshi, SUZUKI Takayoshi, YAMADA Toshiaki
Принадлежит: ASMO CO., LTD.

A direct-current motor includes a yoke having six magnetic poles, an iron core having nine teeth, first and second coils wound about each tooth in directions different from each other, a commutator for being rotated integrally with the iron core and having eighteen commutator pieces, and three pairs of brushes. The brush having the positive pole electrically connected to the first coil is different from the brush having the positive pole electrically connected to the second coil, the brush having the negative pole electrically connected to the first coil is different from the brush having the negative pole electrically connected to the second coil, or the brush having the positive pole and the brush having the negative pole that are electrically connected to the first coil are respectively different from the brush having the positive pole and the brush having the negative pole that are electrically connected to the second coil. 1. A direct-current motor , comprising:a cylindrical yoke having six magnetic poles;an iron core rotationally provided inside the yoke, the iron core having nine teeth arranged in a rotation direction;a first coil wound about each tooth in a forward direction;a second coil wound about each tooth in a reverse direction with respect to the first coil;a commutator for being rotated integrally with the iron core, the commutator having eighteen commutator pieces arranged in the rotation direction; andthree sets of brushes retained inside the yoke, each set having a pair of brushes, wherein each set of the brushes supplies electricity to the first and second coils by sliding against the corresponding commutator pieces,wherein the first and second coils provided on the same tooth are connected to the commutator pieces of the same phase such that the first and second coils are electrically connected to an arbitrary one of the brushes having a positive pole and an arbitrary one of the brushes having a negative pole simultaneously, and whereinthe brush ...

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Номер записи: 60
01-08-2013 дата публикации

Rotary electric machine

Номер: US20130193798A1
Автор: Kiyotaka Koga
Принадлежит: Aisin AW Co Ltd

A rotary electric machine including a core having a plurality of slots disposed in a distributed manner in a circumferential direction of a cylindrical core reference surface, the slots each having a slot opening portion that opens in an opening direction toward one side in a radial direction of the core reference surface, and a coil conductor wire wound around the core. The coil conductor wire has a deformable cross-sectional shape, a diameter of the coil conductor wire with a circular cross-sectional shape is larger than a slot opening width which is a width of the slot opening portion in the circumferential direction, and the coil conductor wire is flexible enough to be flattened so as to be equal to or less than the slot opening width.

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Номер записи: 61
01-08-2013 дата публикации

SPINNING PROCESSING METHOD AND ROTOR SHAFT

Номер: US20130193802A1
Автор: Miyaoka Hiroshi, Taguchi Naoto
Принадлежит: NISSAN MOTOR CO., LTD.

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

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Номер записи: 62
08-08-2013 дата публикации

Method and Apparatus for Permanent Magnet Attachment in an Electromechanical Machine

Номер: US20130200735A1
Автор: Lynch Jonathan A., Mongeau Peter P., Piercey Mark S.
Принадлежит: NORTHERN POWER SYSTEMS UTILITY SCALE, INC.

An apparatus and method for the installation and removal of permanent magnets in a permanent magnet electromechanical machine, for example a wind turbine power unit generator. A magnet holder is mounted on a magnet carrying structure such as a rotor. Permanent magnets may be inserted into and removed from the magnet holder after the electromechanical machine is assembled. The magnet holders define passages for airflow between the inside top and magnet surface. In this manner, permanent magnets may be installed on the magnet carrying structure and provided with additional cooling via said passages. Further, the holders may be configured to secure the magnets by an interference fit, without using bolts or adhesives, to facilitate both assembly and removal for maintenance and repair. 1. A rotor assembly in a permanent magnet electromechanical machine , comprising:a rotor having plural magnet mounting surfaces;a plurality of magnet holders, one at each magnet mounting surface on the rotor, each magnet holder having a top inside surface;a plurality of magnets, one each retained on said magnet mounting surfaces within a magnet holder, each said magnet having a top surface opposite the magnet mounting surface; andat least one void defined between said holder top inside surface and said magnet top surface, said at least one void occupying about 90% to 100% of the space between said surfaces.2. The rotor assembly of claim 1 , wherein said holder top inside surface is spaced from the rotor mounting surface by a first predetermined height and said magnet top surface is spaced from said rotor mounting surface by a second predetermined height greater than said first predetermined height of the magnet holder to form an interference fit between the holder top inside surface and the magnet top surface.3. The rotor assembly of claim 2 , wherein said holder top inside surface and said magnet top surface are configured in combination to form said interference fit as a line contact ...

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Номер записи: 63
08-08-2013 дата публикации

Motor

Номер: US20130200739A1
Автор: Keun Young Yoon, Su Kwon JEONG, Sung Gu Lee, Young Kwan Kim
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A motor realizes mechanical field-weakening control by controlling the leakage magnetic flux from the rotor cores of the motor. The motor includes a stator, a rotor including rotor cores circumferentially spaced apart from one another inside the stator and permanent magnets disposed between the respective rotor cores which extend radially from the stator, and a magnetic flux adjustment unit including a ring-shaped main frame, magnetic substance portions extending from the main frame so as to be circumferentially spaced apart from one another and non-magnetic regions defined between the magnetic substance portions. The magnetic flux adjustment unit is rotatable to control the leakage magnetic flux from the rotor cores.

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Номер записи: 64
08-08-2013 дата публикации

STATOR FOR ROTARY ELECTRIC MACHINE

Номер: US20130200743A1
Автор: OKIMITSU Takeomi
Принадлежит: HONDA MOTOR CO,. LTD.

The manufacturing cost of a stator for a rotary electric machine can be reduced, and the volume of coil end portions can be reduced to enable downsizing. A stator for a rotary electric machine includes: a cylindrical stator core with plural slots formed at an inner circumferential surface; a plurality of coil segments received by the slots; a plurality of first coil end plates electrically connected with the coil segments on either one of end surfaces of the stator core; and a plurality of second coil end plates electrically connected with the coil segments on the other end surface of the stator core. The plate portion of at least one of the plurality of the first coil end plates is formed longer than the plate portions of the other first coil end plates and has a stepped portion. 1. A stator for a rotary electric machine , comprising:a stator core in a sleeve shape with a plurality of slots formed at an inner circumferential surface thereof;a plurality of coil segments received by the slots;a plurality of first coil end plates electrically connected with the coil segments on either one of end surfaces of the stator core; anda plurality of second coil end plates electrically connected with the coil segments on the other end surface of the stator core,wherein each of the coil segments comprises connecting end portions protruding respectively from the one and the other end surfaces of the stator core,wherein each of the first coil end plates comprises:a plate portion in a flat plate shape extended along a circumferential direction of the stator core; anda pair of extended portions respectively extended along a radial direction of the stator core from one end side of the plate portion such that the connecting end portions of the corresponding coil segments are connected to the pair of extended portions,wherein the plurality of first coil end plates and the plurality of second coil end plates are disposed being laminated on the corresponding end surfaces of the stator ...

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Номер записи: 65
08-08-2013 дата публикации

STATOR MAGNET WIRE END COIL RETENTION SYSTEM

Номер: US20130200745A1
Автор: Knapp John M.
Принадлежит: BAKER HUGHES INCORPORATED

The invention includes a retention system and method for stator magnet wires. In embodiments, the retention system includes a packing ring that can swell to a larger size following installation. In embodiments, the lubricant used in the motor causes the packing ring to swell. When the packing ring swells, it exerts pressure against the end turns of the stator magnet wires, and can contour to the shape of the wires so that there are no pressure points on the wires. A rigid support ring can be positioned concentric with the packing ring so that the packing ring does not swell toward the axis of the motor housing. 1. An apparatus for pumping fluid from a well , the apparatus comprising:a pump adapted to pump production fluid from a wellbore;a motor assembly operably connected to the pump, the motor assembly comprising:a housing,a winding, the winding comprising a magnet wire having a plurality linear segments running generally parallel to the axis of the housing and a plurality of end turns proximate to an end of the housing and connecting each linear segment, the plurality of linear segments and end turns being positioned around an inner diameter of the housing to define a winding inner diameter therethrough;a rotor positioned concentrically within the winding inner diameter;a lubricant within the housing to lubricate the rotor; andan annular coil packing ring, the coil packing ring being positioned proximate to the winding and at least a portion of the end turns of the winding to restrain movement of the end turns.2. The apparatus according to claim 1 , wherein the lubricant causes the coil packing ring to swell.3. The apparatus according to claim 1 , wherein the coil packing ring comprises ethylene propylene diene monomer (M-class) rubber.4. The apparatus according to claim 1 , wherein the coil packing ring comprises a packing ring cylinder and a packing ring flange claim 1 , at least a portion of the packing ring cylinder being positioned concentrically within the ...

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Номер записи: 66
15-08-2013 дата публикации

Manufacturing method of shield type motor

Номер: US20130205580A1
Автор: Fang-Fu CHANG
Принадлежит: Individual

A manufacturing method of shield type motor includes the following steps: a): providing an iron core; b): providing a plastic shell and having the exterior face of the plastic shell press against the interior face of the iron core; c): providing a plurality of connected enamel-covered coils for being wound around the bobbin; d): providing a wire fastener for bundling the first material of plastics and the second material of plastics; e): providing a protecting jacket to be connected to the plastic shell and for containing the plurality of enamel-covered coils; f): providing a mold to let the iron core place in the mold and having the first material of plastics teem into the mold; g): having the second material of plastics teem into the mold; and h): removing the mold to expose a main body.

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Номер записи: 67
15-08-2013 дата публикации

ROTARY ELECTRIC MACHINE

Номер: US20130207501A1
Автор: MAEMURA Akihiko, TOMOHARA Kenji
Принадлежит: KABUSHIKI KAISHA YASKAWA DENKI

A rotary electric machine includes a rotor core in which first magnetic pole portions having permanent magnets and second magnetic pole portions having no permanent magnets are alternately arranged in a circumferential direction. Each of the second magnetic pole portions has at least one notch provided near the permanent magnet adjacent thereto. 1. A rotary electric machine comprising:a rotor core in which first magnetic pole portions having permanent magnets and second magnetic pole portions having no permanent magnets are alternately arranged in a circumferential direction,each of the second magnetic pole portions having at least one notch provided near the permanent magnet adjacent thereto.2. The rotary electric machine of claim 1 , wherein the at least one notch includes a first notch and a second notch which are provided in circumferentially opposite sides of each of the second magnetic pole portions.3. The rotary electric machine of claim 2 , wherein a thickness of a portion of the rotor core between the first notch and the side surface of the permanent magnet adjacent thereto claim 2 , and a thickness of a portion of the rotor core between the second notch and the side surface of the permanent magnet adjacent thereto are smaller than a width of the second magnetic pole portion between the first notch and the second notch in the circumferential direction.4. The rotary electric machine of claim 1 , wherein the notch has a circumferential width which is gradually reduced toward an inner peripheral side of the rotor core when viewed in a cross section perpendicular to a rotational axis of the rotor core.5. The rotary electric machine of claim 2 , wherein the notch has a circumferential width which is gradually reduced toward an inner peripheral side of the rotor core when viewed in a cross section perpendicular to a rotational axis of the rotor core.6. The rotary electric machine of claim 3 , wherein the notch has a circumferential width which is gradually ...

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Номер записи: 68
15-08-2013 дата публикации

ROTARY ELECTRIC MACHINE

Номер: US20130207508A1
Автор: MAEMURA Akihiko, TOMOHARA Kenji
Принадлежит: KABUSHIKI KAISHA YASKAWA DENKI

A rotary electric machine includes a rotor core in which first magnetic pole portions having permanent magnets and second magnetic pole portions having no permanent magnets are alternately arranged in a circumferential direction; and a stator core which is arranged to face an outer periphery of the rotor core. The rotor core is configured such that an average gap length between the stator core and the second magnetic pole portions is larger than an average gap length between the stator core and the first magnetic pole portions. 1. A rotary electric machine comprising:a rotor core in which first magnetic pole portions having permanent magnets and second magnetic pole portions having no permanent magnets are alternately arranged in a circumferential direction; anda stator core which is arranged to face an outer periphery of the rotor core, the rotor core being configured such that an average gap length between the stator core and the second magnetic pole portions is larger than an average gap length between the stator core and the first magnetic pole portions.2. The rotary electric machine of claim 1 , wherein a thickness of each of the permanent magnets in a direction of a d-axis magnetic flux passing therethrough is larger than a minimum interval between the permanent magnets of adjacent two of the first magnetic pole portions.3. The rotary electric machine of claim 1 , wherein a thickness of the permanent magnets in a radial direction of the rotor core is larger than a minimum interval between the permanent magnets of adjacent two of first magnetic pole portions.4. The rotary electric machine of claim 2 , wherein a thickness of the permanent magnets in a radial direction of the rotor core is larger than a minimum interval between the permanent magnets of adjacent two of first magnetic pole portions.5. The rotary electric machine of claim 1 , wherein the permanent magnets are embedded in the vicinity of the outer periphery of the rotor core.6. The rotary electric ...

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Номер записи: 69
22-08-2013 дата публикации

Apparatus and Method For Efficient Stator Windings Termination

Номер: US20130212868A1
Автор: Finkle Louis J.
Принадлежит:

A method and apparatus for terminating stator windings. The apparatus includes stator winding termination disks having “U” shaped winding mouths for each group of stator winding ends. After winding the stator, the stator winding termination disks are laid over the termination end of the stator, the unterminated stator windings for one phase of the stator are placed into the “U” shaped winding mouths, the “U” shaped winding mouths are crimped over the unterminated stator windings, and pressure and heat are applied to melt insulation on the unterminated stator winding ends and form an electrical connection between the stator winding termination disks and stator windings for each phase of the stator and for common. 1. A method for terminating stator windings , the method comprising:winding a stator of an electric motor to create stator windings for each phase of the electric motor, including stator windings for a first phase of the electric motor;leaving unterminated stator winding ends of the stator windings exposed at a termination end of the stator;laying a first phase stator winding termination disk over the termination end of the stator;laying unterminated first stator winding ends for the first phase of the stator windings into angularly spaced apart “U” shaped winding mouths of the stator winding termination disk;crimping the “U” shaped winding mouths over the unterminated first stator winding ends for the first phase of the stator windings to obtain crimped first stator winding ends for the first phase of the stator windings;pressing and heating the crimped winding mouths to melt insulation from the crimped first stator winding ends for the first phase of the stator windings forming an electrical connection between the first stator winding termination disk and the stator windings for the first phase of the electric motor; andrepeating the above steps for each remaining phase of the electric motor.2. The method of claim 1 , further including positioning ...

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Номер записи: 70
22-08-2013 дата публикации

Methods of Repairing a Winding in a Generator, and Kits for Making a Substitute Coil

Номер: US20130212869A1
Автор: ANDERES Rafael, Klamt Thomas, MUÑIZ CASAIS César
Принадлежит: ALSTOM WIND, S.L.U.

Method of repairing a winding in a generator, the generator having a generator rotor and a generator stator, wherein the generator rotor and/or stator comprises a plurality of windings, the windings comprising a stack of turns of a conductor around a tooth, wherein the method comprises cutting the winding on a side of the tooth to separate the winding in two parts; removing the two parts of the winding from the tooth; sliding a substitute partial coil on the tooth, the substitute partial coil comprising a stack of incomplete conductor turns having a first end and a second end, said first and second end positioned on the same side of the tooth; and connecting the second ends of each incomplete turn with a first end of the next incomplete turn using a plurality of conductor portions. The disclosure further relates to a kit for making a substitute coil. 1. A method of repairing a winding in a generator , the generator having a generator rotor and a generator stator , wherein the generator rotor and/or the generator stator comprises a plurality of windings , the windings comprising a stack of turns of a conductor around a tooth , wherein the method comprisescutting the winding on a side of the tooth to separate the winding in two parts;removing the two parts of the winding from the tooth;sliding a substitute partial coil on the tooth, the substitute partial coil comprising a stack of incomplete conductor turns having a first end and a second end, the first and second end being positioned on the same side of the tooth; andconnecting the second ends of each incomplete turn with a first end of the next incomplete turn using a plurality of conductor portions.2. The method according to claim 1 , wherein the generator stator comprises the plurality of windings.3. The method according to claim 1 , wherein the generator rotor comprises the plurality of windings.4. The method according to claim 1 , wherein the generator is a wind turbine generator.5. The method according to ...

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Номер записи: 71
22-08-2013 дата публикации

SWITCHED RELUCTANCE MOTOR

Номер: US20130214623A1
Автор: Jung Sung Tai, Kim Hyung Joon, Lee Ki Young, Yang Hae Jun
Принадлежит: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Disclosed herein is a switched reluctance motor including: a salient pole type rotor provided with a plurality of salient poles; and a stator including a stator body provided with a plurality of salient poles facing the rotor and a plurality of auxiliary slots disposed between the salient poles, a plurality of phase windings formed by winding coils around the salient poles, and a plurality of electromagnets formed by winding coils in the auxiliary slots, wherein magnetic fluxes generated due to excitation of the phase windings interact with magnetic force generated from the electromagnets, such that a magnetic flux amount may increase and torque density may be improved, and an intersection line is not generated in the magnetic fluxes generated due to the excitation of the phase windings.

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Номер записи: 72
22-08-2013 дата публикации

AUTOMOTIVE ROTARY ELECTRIC MACHINE AND STATOR MANUFACTURING METHOD THAT IS USED THEREFOR

Номер: US20130214634A1
Автор: HARADA Yoshihiro, HASEGAWA Kazuya, Imazawa Yoshiro, Tanaka Kazunori
Принадлежит: Mitsubishi Electric Corporation

The stator winding has winding assemblies that are disposed in a stator core so as to be stacked in three or more layers in a radial direction such that slot-housed portions line up in single columns in a clot depth direction inside slots, and radial widths of return portions of the winding assemblies that are mounted so as to be stacked in a radial direction are made sequentially narrower in order of return portions of a winding assembly that is positioned centrally, return portions of a winding assembly that is positioned on an inner circumferential side, and return portions of a winding assembly that is positioned on an outer circumferential side. 1. An automotive rotary electric machine comprising a stator comprising:an annular stator core in which a plurality of slots that have openings on an inner circumferential side are disposed at a predetermined pitch circumferentially; anda stator winding that is constituted by a plurality of winding assemblies that are mounted into said stator core,wherein:said winding assemblies are configured by arranging wire pairs that are equal in number to a predetermined slot pitch so as to be offset from each other by a pitch of one slot, said wire pairs being formed by arranging two wires so as to be offset by said predetermined slot pitch from each other such that slot-housed portions are stacked, said wires being constituted by continuous wires that are formed into a pattern in which said slot-housed portions are linked by return portions and are arranged at said predetermined slot pitch, and adjacent slot-housed portions are offset by said return portions so as to alternately occupy an inner layer and an outer layer in a slot depth direction, and said slot-housed portions are plastically deformed so as to have a squared cross section;said stator winding is configured by mounting said winding assemblies into said stator core so as to be stacked in three or more layers in a radial direction such that said slot-housed portions ...

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Номер записи: 73
22-08-2013 дата публикации

ROTOR COIL FOR ARMATURE OF ROTATING MACHINE AND PRODUCTION METHOD THEREOF

Номер: US20130214636A1
Автор: ENYAMA Juichi, Hirano Satoshi, Kageyama Yasuaki, PARK Seunghwan, UMEZU Ryosuke
Принадлежит: Hitachi, Ltd.

A rotor coil for a revolving armature includes a strand coil that includes a part arranged in a core slot of the rotor and is composed of a plurality of element wires; and a solid coil welded to an end of the strand coil wherein the end of the strand coil and an end of the solid coil are welded by friction stir welding. A manufacturing method of a rotor coil includes the step of performing friction stir welding wherein the friction stir welding is performed for the butt joint with the end of the strand coil arranged in an advancing side defined by a rotation direction of a tool and with the solid coil arranged in a retreating side.

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Номер записи: 74
29-08-2013 дата публикации

Permanent Magnet Pump Motor

Номер: US20130221780A1
Автор: Atsushi Fukunaga, Daisuke Kori, Motonobu Iizuka
Принадлежит: HITACHI LTD

In a permanent magnet pump motor comprising a stator and a rotor, a permanent magnet is used for the rotor; and the rotor has a shaft end portion to be mounted with a joint shaft for rotor insertion and bearing brackets for housing therein bearings for supporting the both ends of the rotor. The bearing brackets have cavities through which a rotor shaft and the joint shaft can pass.

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Номер записи: 75
05-09-2013 дата публикации

Method of manufacturing laminated core

Номер: US20130228280A1
Автор: Kento Aono, Naoki Isomura, Yuichi Hirayama
Принадлежит: Mitsui High Tec Inc

A method of manufacturing a laminated core includes inserting permanent magnets 14 into magnet insertion holes 12, 12 a of a core body 13; injecting a resin 18 into the holes 12, 12 a from resin reservoir pots 17 in the die 15 ( 16 ) to fix the magnets 14; placing a dummy plate 19 between the die 15 having the pots 17 and the body 13, the plate 19 having gate holes 35, 35 a guiding the resin 18 from the pots 17 into the holes 12, 12 a , the hole 35 ( 35 a ) overlapping with both of a part of the hole 12 ( 12 a ) and a surface of the body 13; poring the resin 18 via the holes 35, 35 a and curing the resin 18 in the holes 12, 12 a ; and separating the plate 19 from the body 13 to remove the resin 18 overflowed from the holes 12, 12 a.

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Номер записи: 76
05-09-2013 дата публикации

Miniature Motor and Bearing Arrangement

Номер: US20130229076A1
Автор: BOCCADAMO Dario, Friebe Joachim
Принадлежит: MultiElectric GmbH & Co. KG

Electric miniature motor, comprises bearings; stationary assemblies having end faces; and metallic configurations for seating the bearings are formed at the end faces. At least one of the bearings is a roller bearing wherein the outer diameter of the roller bearing is smaller than the inner diameter of the corresponding configuration for seating the bearing; and the roller bearing is connected by at least one welded joint to the configuration. 1. Electric miniature motor , comprising:a) bearings;b) stationary assemblies having end faces;c) metallic configurations for seating the bearings are formed at the end faces;d) at least one of the bearings is a roller bearing wherein the outer diameter of the roller bearing is smaller than the inner diameter of the corresponding configuration for seating the bearing; ande) the roller bearing is connected by at least one welded joint to the configuration.2. Electric miniature motor according to claim 1 , wherein the welding occurs radially through the configuration with the outer ring of the roller bearing.3. Electric miniature motor according to claim 2 , wherein the welded joint is formed point-like claim 2 , as an axial corrugation or as a corrugation at the circumference of the configuration.4. Electric miniature motor according to claim 1 , wherein the welding between the roller bearing and the configuration occurs at the contact edge between both components.5. Electric miniature motor according to claim 4 , wherein the welded joint is formed point-like or as a corrugation between the roller bearing and the configuration.6. Electric miniature motor according to claim 1 , wherein the welding between the roller bearing and the configuration occurs at several positions.7. Bearing arrangement for an electric miniature motor claim 1 , comprising:a) a metallic configuration for seating a roller bearing at an end face of the stationary assemblies of the miniature motor;b) a roller bearing having an outer diameter which is less ...

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Номер записи: 77
12-09-2013 дата публикации

ELECTRIC MACHINE FOR THE MOTORIZED ADJUSTMENT OF MOVABLE PARTS IN THE MOTOR VEHICLE, AND METHOD FOR PRODUCING THE ELECTRIC MACHINE

Номер: US20130234567A1
Автор: Cui Shibin, Holzer Thomas, Liu Yong, Lu Beiwen, Steuer Peter, Weber Matthias, Xu Jing, Xu Jun
Принадлежит: ROBERT BOSCH GMBH

An electric machine (), in particular for the motorized adjustment of movable parts in the motor vehicle, and method for producing an electric machine (), comprising a housing part () in which a printed circuit board () for electrically activating the electric machine () is arranged, wherein at least one centering pin () which reaches into a centering opening () in the printed circuit board () is arranged in the housing part (), wherein the centering pin () is plastically deformed at the free end () thereof in order to form a securing head (). 110162010444520164446. An electric machine () , comprising a housing part () in which a printed circuit board () for electrically activating the electric machine () is arranged , wherein at least one centering pin () which reaches into a centering opening () in the printed circuit board () is arranged in the housing part () , characterized in that the centering pin () is plastically deformed at a free end () thereof.2104416164616. The electric machine () according to claim 1 , characterized in that the at least one centering pin () is formed integrally with the housing part () as an extension of the housing part () claim 1 , and the plastic deformation of the free end () is deformed by supplying heat claim 1 , wherein the housing part () is in the form of a plastics injection molded part.3104420464320. The electric machine () according to claim 1 , characterized in that the centering pin () extends transversely with respect to the printed circuit board () and on a side opposite the free end () has a step () against which the printed circuit board () bears in a fitted state.4104410464457535444. The electric machine () according to claim 1 , characterized in that the centering pin () preferably has a circular cross section claim 1 , and claim 1 , in a ready assembled state of the electric machine () after plastic deformation claim 1 , the free end () of the centering pin () has a larger diameter () than a diameter () in an ...

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Номер записи: 78
19-09-2013 дата публикации

PERMANENT MAGNET, AND ELECTRIC MACHINE COMPRISING SAME, AND A METHOD FOR PRODUCING THE ELECTRIC MACHINE

Номер: US20130241334A1
Автор: Eppel Klaus, Zernikow Maik
Принадлежит: ROBERT BOSCH GMBH

Permanent magnet (), containing at least one metal component () from the group of the rare earth metals, comprising a first coating film (), which forms a cathodic protection against corrosion for the permanent magnet (), the first coating film () containing a metal () which is more electronegative in the electrochemical series than the metal component () of the permanent magnet (), wherein a second coating film (), which is embodied in an electrically insulating fashion, is applied on the first coating film (). 11013202313103020. A permanent magnet () , containing at least one metal component () from the group of the rare earth metals , comprising a first coating film , which forms a cathodic protection against corrosion for the permanent magnet , the first coating film () containing a metal () which is more electronegative in the electrochemical series than the metal component () of the permanent magnet () , and a second coating film () , which is embodied in an electrically insulating fashion , above the first coating film ().21013. The permanent magnet () according to claim 1 , characterized in that the metal component () is neodymium (Nd).31020. The permanent magnet () according to claim 1 , characterized in that the first coating film () contains as metal zinc.41020212226. The permanent magnet () according to claim 1 , characterized in that the first coating film () is embodied as a zinc lamellar coating () in which lamellar zinc particles () are incorporated in an inorganic matrix material ().51030. The permanent magnet () according to claim 1 , characterized in that the second coating film () has a high impact resistance and wear resistance.6103033. The permanent magnet () according to claim 1 , characterized in that the second coating film () is embodied as an inorganic coating ().7102010. The permanent magnet () according to claim 1 , characterized in that the first coating film () completely encloses the permanent magnet ().84448401044484448. A rotor () ...

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Номер записи: 79
19-09-2013 дата публикации

ROTOR WITH PERMANENT EXCITATION, ELECTRIC MACHINE HAVING SUCH A ROTOR AND MANUFACTURING METHOD FOR THE ROTOR

Номер: US20130241338A1
Автор: Mader Daniel, Vollmer Rolf
Принадлежит: SIEMENS AKTIENGESELLSCHAFT

A rotor includes a shaft, a plurality of permanent magnets arranged around the shaft in a circumferential direction for permanent excitation and attached to the shaft by an adhesive bond, and a flux conducting device provided for conducting a magnetic flux of the permanent magnets. The flux conducting device has a plurality of soft-magnetic flux conducting elements. Each flux conducting element is placed between two of the permanent magnets and adhesively bonded thereto. 1. A rotor , comprising:a shaft;a plurality of permanent magnets arranged around the shaft in a circumferential direction for permanent excitation and attached to the shaft by an adhesive bond; anda flux conducting device provided for conducting a magnetic flux of the permanent magnets, said flux conducting device having a plurality of soft-magnetic flux conducting elements, each flux conducting element being placed between two of the permanent magnets and adhesively bonded thereto.2. The rotor of claim 1 , wherein the rotor has perpendicular to its axis of rotation a cross-section in which the permanent magnets are arranged in a star shape on the shaft claim 1 , and the flux conducting elements are arranged in a wedge shape between the permanent magnets.3. The rotor of claim 1 , wherein at least one of the permanent magnets has a magnetization pointing in the circumferential direction in relation to an axis of rotation of the rotor.4. The rotor of claim 1 , wherein the permanent magnets have a magnetization pointing in the circumferential direction in relation to an axis of rotation of the rotor.5. The rotor of claim 1 , wherein the flux conducting element is adhesively bonded to the two permanent magnets by an adhesive layer having in the circumferential direction a thickness of 0.05 mm to 0.25 mm.6. The rotor of claim 1 , wherein at least one of the flux conducting elements has a surface which bounds the flux conducting element in a radial direction and has in the circumferential direction a ...

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Номер записи: 80
19-09-2013 дата публикации

POWER TRANSMISSION DEVICE FOR ELECTRIC VEHICLE AND PRODUCTION METHOD THEREFOR

Номер: US20130241342A1
Автор: Hoshika Seiji, KARIYA Takeshi, Morikura Kiyoshi, Soeda Kazuhiko
Принадлежит: NISSAN MOTOR CO., LTD.

A power transmission device for an electrically driven vehicle basically includes a power transmission mechanism, a sliding contact brush, a brush case cover, and a brush protective jig. The power transmission mechanism includes a case element, an axle element and a power transmission element. The sliding contact brush is mounted on an axle end of the axle element. The brush case cover is selectively mounted to the case element to enclose the axle end of the axle element in the case element. The brush protective jig is mounted to cover the brush contact when mounting the sliding contact brush to the axle end. The brush protective jig is dimensioned to contact the brush case cover and to prevent the brush case cover from being mounted to the case element while the brush protective jig is in an attached state that covers the brush contact. 1. A power transmission device for an electrically driven vehicle , comprising:a power transmission mechanism interposed between a motor shaft of a motor driven by an inverter and a drive wheel, the power transmission mechanism including a case element, an axle element and a power transmission element;a sliding contact brush mounted on the axle end of the axle element with one end of a brush contact being configured to be in contact with the axle end and the other end of the brush contact being configured to be electrically grounded to a vehicle body;a brush case cover selectively mounted to the case element to enclose the axle end of the axle element in the case element, and to form a brush chamber accommodating the sliding contact brush; anda brush protective jig mounted to cover the brush contact when mounting the sliding contact brush to the axle end, the brush protective jig being dimensioned to contact the brush case cover and to prevent the brush case cover from being mounted to the case element while the brush protective jig is in an attached state that covers the brush contact.2. The power transmission device as claimed in ...

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Номер записи: 81
19-09-2013 дата публикации

AUTOMOTIVE ROTARY ELECTRIC MACHINE AND WINDING ASSEMBLY MANUFACTURING METHOD THAT IS USED THEREFOR

Номер: US20130241369A1
Автор: HASEGAWA Kazuya, Hosokawa Hiroshi, Imazawa Yoshiro, MURATA Norihiro, Nishimura Shinji, Tanaka Kazunori
Принадлежит: Mitsubishi Electric Corporation

A winding assembly includes: slot-housed portions housed inside each of the slots of the stator core so as to form pairs that line up in an inner layer and an outer layer relative to a slot depth direction; first return portions at a first axial end of the stator core that link end portions of the slot-housed portions housed in the inner layer inside each of the slots and end portions of the slot-housed portions housed in the outer layer inside the slots that are (N−M) slots away; and second return portions at a second axial end of the stator core that link end portions of the slot-housed portions housed in the outer layer inside each of the slots and end portions of the slot-housed portions housed in the inner layer inside the slots that are (N+M) slots away. 1. An automotive rotary electric machine comprising:a metal housing that comprises a front bracket and a rear bracket;a rotor that is rotatably disposed inside said housing by being fixed to a shaft that is rotatably supported by said front bracket and said rear bracket; and an annular stator core in which a plurality of slots that have an opening on an inner circumferential side are disposed at a predetermined pitch circumferentially, and that is disposed so as to surround said rotor so as to be held between said front bracket and said rear bracket; and', 'a stator winding that is mounted into said stator core,, 'a stator comprisingsaid automotive rotary electric machine comprising:said stator winding is constituted by a plurality of wave windings that have a slot pitch that alternates between a slot pitch of (N−M) and a slot pitch of (N+M), where N is an integer that is greater than or equal to 2, and M is an integer that is greater than or equal to 1 and less than N;said plurality of wave windings are constituted by at least one winding assembly that is mounted into said stator core; and slot-housed portions that are housed inside each of said slots of said stator core so as to form pairs that line up in an ...

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Номер записи: 82
19-09-2013 дата публикации

Miniature Motor and Housing Fabrication

Номер: US20130241373A1
Автор: BOCCADAMO Dario, Friebe Joachim
Принадлежит:

Method for fabricating an electric miniature motor, substantially comprising a housing assembly, a rotor assembly, a power transmission and bearing assembly and a second bearing assembly, wherein the housing assembly comprises a housing tube having a division extending in the axial direction over an entire length of the housing tube, comprising the following steps of a) inserting a cylindrical core having a defined outer diameter into the housing assembly; b) adjusting an inner diameter of the housing assembly to an outer diameter of the core; c) fixing the inner diameter of the housing assembly by fixing the housing tube in an area of the division; and d) removing the cylindrical core. 1. Method for fabricating an electric miniature motor , substantially comprising a housing assembly , a rotor assembly , a power transmission and bearing assembly and a second bearing assembly , wherein the housing assembly comprises a housing tube having a division extending in the axial direction over an entire length of the housing tube , comprising the following stepsa) inserting a cylindrical core having a defined outer diameter into the housing assembly;b) adjusting an inner diameter of the housing assembly to an outer diameter of the core;c) fixing the inner diameter of the housing assembly by fixing the housing tube in an area of the division; andd) removing the cylindrical core.2. Method according to claim 1 , wherein the adjustment of the inner diameter of the housing assembly to the outer diameter of the cylindrical core is performed by forces acting in the direction of the housing center upon the outer diameter of the housing assembly.3. Method according to claim 2 , wherein the forces acting in the direction of the housing center are generated by pressure pieces.4. Method according to one of claim 1 , wherein the fixation of the housing tube is carried out by welding.5. Method according to claim 4 , wherein the fixation of the housing tube is carried out by laser welding ...

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Номер записи: 83
26-09-2013 дата публикации

FLUX-SWITCHING LINEAR PERMANENT MAGNET MACHINE WITH YOKELESS TRANSLATOR

Номер: US20130249324A1
Автор: GANDHI ARUN, PARSA LEILA
Принадлежит: RENSSELAER POLYTECHNIC INSTITUTE

Advantageous motors, such as flux-switching linear synchronous motors (FSLSMs) are provided. In an FSLSM, all magnets can be magnetized in the same direction. In addition, an FSLSM can be yokeless and can have two stators displaced from one another by half a pole pitch. FSLSMs of the subject invention are cost-effective and provide high thrust, and can operate well even under fault conditions. 1. A flux-switching linear synchronous motor (FSLSM) , comprising:at least two permanent magnets;a coil wrapped around each permanent magnet; andat least one stator,wherein all permanent magnets of the FSLSM are magnetized in the same direction.2. The FSLSM according to claim 1 , comprising two stators claim 1 , wherein a first stator is disposed below the permanent magnets and a second stator is disposed above the permanent magnets.3. The FSLSM according to claim 2 , wherein each stator comprises stator teeth and teeth gaps between the stator teeth claim 2 , wherein the first stator and the second stator are displaced from each other by half a pole pitch such that the stator teeth of the first stator are aligned with the teeth gaps of the second stator and the stator teeth of the second stator are aligned with the teeth gaps of the first stator.4. The FSLSM according to claim 1 , wherein the FSLSM is yokeless.5. The FSLSM according to claim 1 , comprising at least six permanent magnets claim 1 , wherein the FSLSM is a three-phase FSLSM.6. The FSLSM according to claim 5 , comprising six slots and ten poles.7. The FSLSM according to claim 1 , comprising at least five permanent magnets claim 1 , wherein the FSLSM is a five-phase FSLSM.8. The FSLSM according to claim 1 , wherein all permanent magnets and all coils are encapsulated in a non-magnetic encapsulating material claim 1 , thereby forming a one-piece translator containing all permanent magnets and all coils of the FSLSM.9. The FSLSM according to claim 7 , wherein the non-magnetic encapsulating material comprises a ...

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Номер записи: 84
26-09-2013 дата публикации

ELECTRIC ACTUATOR

Номер: US20130249335A1
Автор: Motoda Haruaki
Принадлежит: Hitachi Automotive Systems, Ltd.

An electric actuator including a first electric circuit having a first connecting terminal, and a second electric circuit having a second connecting terminal electrically connected with the first connecting terminal, the first connecting terminal including a tip end portion having a rectangular flat plate shape, the second connecting terminal including a pair of elastic contact flaps opposed to each other with a clearance, the clearance having a width between tip end surfaces of the elastic contact flaps which is smaller than a thickness of the first connecting terminal. The first connecting terminal is retained such that the tip end portion thereof is clamped between the tip end surfaces of the elastic contact flaps of the second connecting terminal by an elastic restoring force of the elastic contact flaps. 1. An electric actuator for a vehicle , the electric actuator including an electric motor as a driving source , the electric actuator comprising:a first electric circuit comprising a first connecting terminal; anda second electric circuit comprising a second connecting terminal electrically connected with the first connecting terminal,wherein the first connecting terminal comprises a tip end portion having a rectangular flat plate shape,wherein the second connecting terminal comprises a pair of elastic contact flaps opposed to each other with a clearance, the clearance having a width between tip end surfaces of the elastic contact flaps which is smaller than a thickness of the first connecting terminal, andwherein the first connecting terminal is retained such that the tip end portion thereof is clamped between the tip end surfaces of the elastic contact flaps of the second connecting terminal by an elastic restoring force of the elastic contact flaps.2. The electric actuator as claimed in claim 1 , further comprising guides disposed on both sides of the first connecting terminal in a width direction of the first connecting terminal claim 1 , the guides serving ...

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Номер записи: 85
26-09-2013 дата публикации

LAMINATED IRON CORE AND METHOD FOR MANUFACTURING SAME

Номер: US20130249346A1
Автор: Nagai Akira, Oda Jin
Принадлежит: MITSUI HIGH-TEC , INC.

A laminated iron core and a method for manufacturing the same are provided to secure the lamination strength of the respective iron core pieces thereof, and to provide good magnetic efficiency and to reduce a loss. In a laminated iron core including a first caulking section formed in an area thereof having larger magnetic flux density than other area and a second caulking section formed in the other area, the engagement area A of the recessed sub-sections and projecting sub-sections of the first caulking sections of divided iron core pieces adjoining each other in the laminating direction is set smaller than the engagement area B of the recessed sub-sections and projecting sub-sections of the second caulking sections adjoining each other in the laminating direction. 1. A laminated iron core , comprising:multiple iron core pieces caulked and laminated on each other;a first caulking section formed in an area of each of the iron core pieces where a density of magnetic flux passing therethrough is larger than in other area; anda second caulking section formed in the other area of the iron core piece, whereinan engagement area A of the first caulking section of the iron core piece mutually adjoining in a lamination direction is smaller than an engagement area B of the second caulking section mutually adjoining in the laminating direction.2. The laminated iron core according to claim 1 , whereineach of the first and second caulking sections has a rectangular shape when viewed from above, andeach of the first and second caulking sections has a V shape including a bottom portion and two inclined portions opposed to each other across the bottom portion.3. The laminated iron core according to claim 2 , whereina longitudinal direction of the first caulking section faces a direction of the magnetic flux.4. The laminated iron core according to claim 1 , whereina caulking depth of the first caulking section is smaller than a caulking depth of the second caulking section, whereby ...

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Номер записи: 86
03-10-2013 дата публикации

WINDING FRAME WITH MAGMATE AND STATOR CORE WITH THE SAME

Номер: US20130255070A1
Автор: JANG Jeong Cheol, Jeong Wang Gyu, Lee Kyoung Joo
Принадлежит: New Motech Co., Ltd.

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. 1punching an electrical steel plate to form a thin film type stator core-continuous body having at least two or more unit cores connected to each other;stacking the thin film type stator core-continuous body to make a stator core-continuous body;coupling a winding frame-continuous body to the top and underside of the stator core-continuous body, respectively;bending the stator core-continuous body to a half-round shape; andcoupling the stator core-continuous body to another stator core-continuous body made by the above steps to form the stator core having a round shape.. A method for manufacturing a stator core comprising the step of: 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 benefit under 35 U.S.C. §120 and §365(c) to a prior PCT International Patent Application No. PCT/KR2010/007310 (filed on Oct. 23, 2010 and designating the U.S.), which claims priority to Korean Patent Application No. 10-2009-0113139 (filed on Nov. 23, 2009), which are all hereby incorporated by reference in their entirety.Generally, a motor used in an outdoor unit of an air conditioner includes a stator and a rotor. This stator is configured wherein coils are wound on a core ( ...

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Номер записи: 87
03-10-2013 дата публикации

ROTOR UNIT, ROTATING ELECTRICAL MACHINE, AND METHOD OF MANUFACTURING ROTOR UNIT

Номер: US20130257211A1
Автор: Aono Masato, Haga Hidehiro, Migita Takayuki, Nakanishi Keita
Принадлежит: NIDEC CORPORATION

A rotor unit includes a plurality of rotating bodies arranged along a central axis. Each of the plurality of rotating bodies includes an annular rotor core surrounding the central axis, a plurality of magnets arranged in the circumferential direction around the rotor core, and a holder arranged to hold the magnets. Further, the holder includes a plurality of partitioning portions each axially extending between respective ones of the plurality of magnets. The axial dimension of the plurality of partitioning portions is longer than the axial dimension of the respective ones of the plurality of magnets which are held by the plurality of partitioning portions. Further, the plurality of rotating bodies is disposed in a state where the circumferential positions of the plurality of magnets are out of alignment. 115-. (canceled)16. A rotor unit for a rotating electrical machine , comprising:a plurality of rotating bodies arranged along a central axis; wherein an annular rotor core surrounding the central axis;', 'a plurality of magnets arranged in a circumferential direction around the rotor core; and', 'a holder arranged to hold the plurality of magnets;, 'each of the plurality of rotating bodies includesthe holder includes a plurality of partitioning portions each axially extending between respective ones of the plurality of magnets;an axial dimension of the plurality of partitioning portions is longer than an axial dimension of the plurality of magnets held by the plurality of partitioning portions; andthe plurality of rotating bodies is disposed in a state in which circumferential positions of the plurality of magnets of respective ones of the plurality of rotating bodies are out of alignment.17. The rotor unit according to claim 16 , wherein the plurality of rotating bodies include a first rotating body and a second rotating body arranged along the central axis in a state in which first surfaces face each other and second surfaces are turned away from each other;a ...

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Номер записи: 88
03-10-2013 дата публикации

INSULATOR FOR STATOR ASSEMBLY OF BRUSHLESS DC MOTOR

Номер: US20130259674A1
Автор: Moir Michael Bruce, SEARS David B., THOMAS Peter Jeffrey
Принадлежит: ResMed Motor Technologies Inc.

An insulator for a stator assembly includes at least a first insulator adapted to be mounted to the stator core and structured to insulate the stator core from the coils. The at least one insulator includes structure to perform at least one additional function. For example, the structure may include a support member to support and/or locate the PCBA on the stator core, a wire guide to guide cross-over wires that form a connection between coils, and/or positioning structure to precisely position the PCBA with respect to the coils. 1. An insulator for a stator assembly including a stator core having a plurality of teeth , coils wound around the teeth , and a PCBA , the insulator comprising:at least one insulator adapted to be mounted to the stator core and structured to insulate the stator core from the coils,said at least one insulator including structure to perform at least one additional function.2. The insulator according to claim 1 , wherein said structure includes a support member to support and/or locate the PCBA on the stator core.3. The insulator according to claim 1 , wherein said structure includes a wire guide to guide cross-over wires that form a connection between coils.4. The insulator according to claim 1 , wherein said structure includes positioning structure to precisely position the PCBA with respect to the coils.5. An insulator for a stator assembly including a stator core having a plurality of teeth claim 1 , coils wound around the teeth claim 1 , and a PCBA claim 1 , the insulator comprising:at least a first insulator adapted to be mounted to the stator core and structured to insulate the stator core from the coils,the first insulator including a support member to support and/or locate the PCBA on the stator.6. The insulator according to claim 5 , wherein the first insulator is adapted to be mounted to a first side of the stator core and further comprising a second insulator adapted to be mounted to a second side of the stator core opposite to ...

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Номер записи: 89
10-10-2013 дата публикации

METHOD FOR PRODUCING A STATOR

Номер: US20130263439A1
Автор: Brandau Rüdiger, Siebald Kurt
Принадлежит:

A description is given of a method for producing a stator for an electrical machine as an internal rotor, in particular an electric motor. This method involves providing a multiplicity of separate pole teeth, which are wound. The ends of the winding wire of the pole teeth are connected to one another to create a flexible annular pole tooth assembly, and the flexible assembly is inserted into an injection mould and centered. The assembly located in the mould is encapsulated or sealed in a moulding compound. In this way, a dimensionally stable stator with particularly good insulating properties can be produced. 15-. (canceled)6. A method for producing a stator for an internal-rotor electric machine , comprising:providing a plurality of separate pole teeth each having a first end-face wall, a second end-face wall, and a pole tooth web connecting the first and second end-face walls;wrapping the plurality of separate pole teeth forming a winding enveloping each pole tooth web;connecting respective winding wire ends of each of the plurality of separate pole teeth to produce a flexible ring-shaped pole tooth assembly;stabilizing the flexible ring-shaped pole tooth assembly is stabilized by attaching an outer ring to the flexible ring-shaped pole tooth assembly;introducing the flexible ring-shaped pole tooth assembly into an injection mold after attaching the outer ring and centering the flexible ring-shaped pole tooth assembly in the injection mold;removing the outer ring from the flexible ring-shaped pole tooth assembly after the flexible ring-shaped pole tooth assembly is introduced into the injection mold;bringing the flexible ring-shaped pole tooth assembly to a desired diameter after introducing the flexible ring-shaped pole tooth assembly into the injection mold; andencapsulating the flexible ring-shaped pole tooth assembly by casting with a plastic compound such that respective regions between each pole tooth and regions above and below the plurality of separate ...

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Номер записи: 90
10-10-2013 дата публикации

TRANSVERSE AND/OR COMMUTATED FLUX SYSTEMS HAVING SEGMENTED STATOR LAMINATIONS

Номер: US20130264905A1
Автор: Calley David G., Cole Daniel S., Dyer John M., Janecek Thomas F., Williams Tyler K.
Принадлежит: Electric Torque Machines, Inc.

Electrical machines, for example transverse flux machines and/or commutated flux machines, may be configured to achieve increased efficiency, increased output torque, and/or reduced operating losses via use of laminated materials, for example laminated materials configured with cuts and/or segmentations. Segmentations may also assist with manufacturability, mechanical retention of components, and the like. 1. An electrical machine , comprising:a coil; anda stator at least partially surrounding the coil, the stator comprising:a first stator portion comprising a first lamination stack;a second stator portion comprising a second lamination stack; anda back return lamination coupling the first stator portion and the second stator portion,wherein the electrical machine is at least one of a transverse flux machine or a commutated flux machine.2. The electrical machine of claim 1 , wherein the first lamination stack and the second lamination stack are separable by a plane perpendicular to a rotational axis of the electrical machine.3. The electrical machine of claim 1 , wherein the first stator portion comprises multiple lamination stacks electrically separated by cuts.4. The electrical machine of claim 3 , wherein the cuts are interlocking cuts.5. The electrical machine of claim 3 , wherein the outs provide features for mechanical connection between at least two of the multiple lamination stacks.6. The electrical machine of claim 1 , wherein the first lamination stack comprises alternating layers of a first planar material and a second planar material.7. The electrical machine of claim 1 , wherein the first stator portion comprises multiple lamination stacks interlocked to form a generally ring-shaped structure.8. The electrical machine of claim 1 , wherein the first stator portion has at least one cut therethrough to reduce losses from flux linking within the first stator portion.9. The electrical machine of claim 1 , wherein the electrical machine is configured with a ...

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Номер записи: 91
17-10-2013 дата публикации

POLE SHOE ARRANGEMENT FOR A MACHINE ELEMENT OF AN ELECTRICAL MACHINE

Номер: US20130270950A1
Автор: SEMMER Silvio, TOURDE XAVIER, Urda Adriana Cristina
Принадлежит:

A pole shoe arrangement for a rotor or a stator of an electrical machine having an air gap between the stator and the rotor is disclosed. The pole shoe arrangement has a pole shoe element having an inner end and an outer end opposing the inner end. The inner end lies opposite the air gap when the pole shoe element is in an assembled state. The pole shoe element has a receiving surface for receiving a permanent magnet between the inner end and the outer end. The pole shoe arrangement has a guiding facility to guide the permanent magnet in a radial direction from the outer end to the inner end and to limit a movement of the permanent magnet at right angles to the radial direction. 1. A pole shoe arrangement for an electrical machine comprising a stator , a rotor and an air gap between the stator and the rotor , comprising: an inner end lying opposite the air gap when the pole shoe element is in an assembled state,', 'an outer end opposing the inner end, and', 'a receiving surface for receiving a permanent magnet between the inner end and the outer end; and, 'a pole shoe element comprisinga guiding facility adapted to guide the permanent magnet in a radial direction from the outer end to the inner end and to limit a movement of the permanent magnet at right angles to the radial direction.2. The pole shoe arrangement as claimed in claim 1 , wherein the guiding facility comprises at least one projection that projects beyond the receiving surface claim 1 , and wherein the at least one projection is embodied monolithically with the pole shoe element.3. The pole shoe arrangement as claimed in claim 1 , wherein the pole shoe element comprises a groove claim 1 , and wherein the guiding facility comprises a guide element that is not ferromagnetic and is inserted into the groove.4. The pole shoe arrangement as claimed in claim 3 , wherein the pole shoe arrangement comprises a second pole shoe element claim 3 , and wherein the pole shoe element and the second pole shoe element ...

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Номер записи: 92
17-10-2013 дата публикации

Magnet cover plate module for wind turbine generators, arrangement, mounting and dismounting method thereof

Номер: US20130270953A1
Автор: Peter Rasmussen
Принадлежит: Gamesa Innovation and Technology SL

The present invention describes a magnet cover plate module for positioning and protecting permanent magnets individually on a rotor's yoke for wind turbine generators. Said magnet module comprising a magnet cover plate made of a soft magnetic material for covering said permanent magnets individually, a non-magnetic plate is permanently fixed to said magnet cover plate, said non-magnetic plate comprises means for fixing said magnet cover plate module to an outer surface of said rotor's yoke, said fixing means being removable so as to allow mounting and dismounting of said cover plate module individually. Additionally a magnetic extender configured for guiding magnetic flux and avoid flux leakage is arranged on an inner surface of the rotor's yoke. Related methods of mounting, dismounting and repairing permanent magnets are equally described.

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Номер записи: 93
17-10-2013 дата публикации

ELECTROMAGNETIC MACHINE

Номер: US20130270955A1
Автор: Lillington Paul Evan
Принадлежит: GLOBAL MOTORS INVENT PTY LTD

There is provided an electromagnetic machine () having an inner and outer stator (), and a rotor and a plurality of magnets () embedded in the rotor (). The magnets () are configured such that the orientation of the magnetic polar axis of each magnet () is tangential to the direction of rotation of the rotor () and the magnetic polar axis of each magnet is opposite to the direction of the magnetic polar axes of the adjacent magnets to provide radial magnetic fields. 1. An electromagnetic machine comprising:an inner stator;an outer stator;a rotor located between the inner and outer stator; anda plurality of permanent magnets embedded in the rotor, the magnets being configured such that the orientation of the magnetic polar axis of each magnet is tangential to the direction of rotation of the rotor, and the magnetic polar axis of each magnet is opposite to the direction of the magnetic polar axes of the adjacent magnets to provide radial magnetic fields.2. The electromagnetic machine of claim 1 , wherein claim 1 , for the rotor at least one of the conditions is satisfied: the magnet width is approximately half that of the mid-line separation of adjacent magnets claim 1 , the magnet length is approximately twice that of the magnet width claim 1 , the rotor depth is approximately the same as the outer stator arc length between adjacent magnets.3. The electromagnetic machine of claim 1 , wherein at least one of the conditions is satisfied: the magnet width is approximately half that of the mid-line separation of adjacent magnets claim 1 , the magnet length is approximately half that of the mid-line separation of adjacent magnets claim 1 , the rotor depth is approximately half that of the outer stator arc length between adjacent magnets.4. The electromagnetic machine of any preceding claim claim 1 , wherein the stators have winding slots arranged to compensate for the difference in magnetic flux density of the magnets interacting with each respective stator and the ...

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Номер записи: 94
17-10-2013 дата публикации

Electric motor having rotor structure for avoiding defect due to strain generated by temperature change, and production method thereof

Номер: US20130270956A1
Автор: Akira Yamaguchi, Tsuyoshi Furuya
Принадлежит: FANUC Corp

An electric motor having a rotor structure and a production method thereof, wherein a strain due to temperature change does not occur and a manufacturing problem does not occur. Each permanent magnet does not contact each other, and a deformable intervening member is positioned between the end surfaces of the magnets. Intervening member is an elastically or plastically deformable member, and the thickness of the intervening member in the direction of the rotation axis of the rotor is determined so that the neighboring permanent magnets, which are bonded to a rotor core within a manufacturing temperature range of the rotor, do not contact each other at a lower limit of an operating temperature of the electric motor.

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Номер записи: 95
24-10-2013 дата публикации

Method And Fixture For Twisting End Portions of Bar Conductors, In Particular For Bar Windings of Electric Machines

Номер: US20130276295A1
Автор: Sante Guercioni
Принадлежит: Tecnomatic SpA

A twisting method ( 100 ) is described, for twisting free end portions ( 2 A, 3 A, 2 A′, 3 A′) of bar conductors ( 1, 1′ ) for the stator or rotor bar winding of an electrical machine, comprising: a step of providing ( 101 ) a twisting fixture ( 10 ) comprising at least a pocket member ( 11 ) extending about a twisting axis (Z-Z) and provided with a circular array (S 1 ) of pockets having its center on the twisting axis (Z-Z), the pocket member ( 11 ) including a main structure ( 11 A) provided with an arc (R 1 ) of adjacent pockets of said array (S 1 ) and a secondary structure ( 11 B) which is movably mounted with respect to main structure ( 11 A) and which is provided with a further pocket ( 11 B′) of said array (S 1 ), each of the pockets of said array (S 1 ) comprising a respective insertion opening ( 11 A″, 11 B″), which is adapted to be passed through by one of said free end portions ( 2 A, 2 A′) for inserting such free end portion into said pocket; a step of providing ( 102 ) a stator core ( 20 ) or rotor core ( 20 ) provided with a plurality of slots ( 24 ) which are populated by a respective plurality of said bar conductors ( 1, 1′ ) which are arranged with said free end portions ( 2 A, 2 A′) protruding from a side of stator core ( 20 ) or rotor core ( 20 ), said protruding end portions forming a circular array (T 1 ) of end portions ( 2 A, 2 A′); a step of inserting ( 103 ) into the arc (R 1 ) of pockets of the main structure ( 11 A) an arc of adjacent end portions ( 2 A, 2 A′) of said array of end portions (T 1 ); a first step of twisting ( 104 ) the arc of end portions, which is inserted into said arc (R 1 ) of pockets, by relative rotational-translational motion between said core ( 20 ) and said pocket member ( 11 ); the method being characterized in that it further comprises: a step of axially translating ( 105 ) the secondary structure ( 11 B) with respect to the main structure ( 11 A), for inserting, into said further pocket ( 11 B′) of the ...

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Номер записи: 96
24-10-2013 дата публикации

STATOR CORE MANUFACTURING METHOD

Номер: US20130276296A1
Автор: Tanahashi Fumiki
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

In a method for manufacturing a stator core, core steel plates each having a yoke part and teeth parts are sequentially formed and the core steel plates are laminated one on another to produce the stator core. This method includes forming a cut section extending in a radial direction in each of the core steel plates in the progressive press process so that the cut section is located in only one place in a circumferential direction. 1. A method for manufacturing a stator core , in which core steel plates each having a yoke part and teeth parts are sequentially formed and the core steel plates are laminated one on another to produce the stator core , the method including:an inner diameter hole forming step of forming the teeth parts and an inner diameter hole in a pre-shaped steel plate and in an inner circumference of each core steel plate;a pilot hole forming step of forming a pilot hole at one place of the pre-shaped steel plate in an outer peripheral portion outside a portion of the pre-shaped steel plate to be punched out as the core steel plate;a cut section forming step of forming a cut section to extend in a radial direction from the inner diameter hole to the pilot hole in each of the core steel plates in the progressive press process so that the cut section is located at only one place in a circumferential direction; anda steel plate punching step of punching out the core steel plate from the pre-shaped steel plate.23-. (canceled)4. The method for manufacturing a stator core according to claim 1 , whereina plurality of cutting punches are provided to form the cut sections, andthe cutting punches are able to be switched between operation and non-operation.5. The method for manufacturing a stator core according to claim 1 , wherein the cutting punch is moved.6. (canceled)7. The method for manufacturing a stator core according to claim 1 , wherein the pilot hole has a long hole shape.8. (canceled)9. A stator core manufacturing apparatus for manufacturing a ...

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Номер записи: 97
24-10-2013 дата публикации

MANUFACTURING METHOD FOR HELICAL CORE FOR ROTATING ELECTRICAL MACHINE AND MANUFACTURING DEVICE FOR HELICAL CORE FOR ROTATING ELECTRICAL MACHINE

Номер: US20130276297A1
Автор: Kurosaki Yousuke
Принадлежит:

A manufacturing method of a helical core for a rotating electrical machine includes: first step forming a yoke portion extending along one direction and tooth portions protruding toward a width direction of the yoke portion from a first side edge of the width direction, with respect to a belt-shaped metal plate extending along the one direction; second step forming a notch at a position between tooth portions of the yoke portion after the first step; and third step processing the belt-shaped metal plate into a helical shape by applying bending to the metal plate so that the belt-shaped metal plate is curved toward the width direction sequentially from a portion where the notch is formed after the second step, and in the third step, a distance between a position where the application of bending starts and the position where the notch is formed is limited to within a predetermined dimension. 1. A manufacturing method of a helical core for a rotating electrical machine , the method comprising:a first process of forming a yoke portion extending along one direction and a plurality of tooth portions protruding toward a width direction of the yoke portion from a first side edge of the width direction, with respect to a belt-shaped metal plate extending along the one direction;a second process of forming a notch at a position between the tooth portions of the yoke portion, after the first process; anda third process of processing the belt-shaped metal plate into a helical shape by applying bending to the metal plate so that the belt-shaped metal plate is curved toward the width direction sequentially from a portion in which the notch is formed, after the second process,wherein, in the third process, a distance between a position at which application of the bending starts and a position at which the notch is formed is limited to within a predetermined dimension.2. The manufacturing method of the helical core for a rotating electrical machine according to claim 1 , the method ...

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Номер записи: 98
24-10-2013 дата публикации

STEPPER MOTOR WITH ADJUSTABLE DETENT TORQUE

Номер: US20130278086A1
Автор: BOURQUI Yvan, FURLAN Miha
Принадлежит: JOHNSON ELECTRIC S.A.

A stepper motor has a rotor having a permanent magnet, a stator housing and a plurality of stator coil assemblies disposed within the stator housing. Each coil assembly has a bobbin, a coil wound about the bobbin, and two pole plates having pole fingers extending axially inside of the bobbin. The bobbin is disposed between the two pole plates and defines a space accommodating the rotor. A number of magnetic detent plates are disposed about the permanent magnet rotor. Each magnetic detent plate has a central opening accommodating the rotor and a plurality of projections extending inwardly, spaced about the central opening. The projections interact with the magnetic field of the rotor magnet. 1. A stepper motor comprising:a rotor having a permanent magnet;a stator housing;a plurality of stator coil assemblies disposed within the stator housing; anda number of magnetic detent plates disposed along the motor axis,wherein each magnetic detent plate has a central opening accommodating the permanent magnet of the rotor and a plurality of projections extending inwardly, spaced about the central opening, the projections interacting with the magnetic field of the permanent magnet of the rotor.2. The stepper motor of claim 1 , wherein each coil assembly has a bobbin claim 1 , a coil wound about the bobbin claim 1 , and two pole plates having pole fingers extending axially inside of the bobbin claim 1 , the bobbin being disposed between the two pole plates and defining a space accommodating the rotor.3. The stepper motor of claim 1 , wherein the magnetic detent plates are disposed between two adjacent stator coil assemblies.4. The stepper motor of claim 1 , wherein each magnetic detent plate has at least one locking tab and the stator housing as at least one corresponding aperture accommodating the locking tab to fix the orientation of the magnetic detent plates with respect to the stator housing.5. The stepper motor of claim 1 , wherein the number of projections on each ...

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Номер записи: 99
31-10-2013 дата публикации

MAGNETIZER AND ASSEMBLER FOR ELECTRICAL MACHINES

Номер: US20130283600A1
Автор: Mongeau Peter
Принадлежит: VESTAS WIND SYSTEMS A/S

The present invention relates a device for magnetizing and assembling an electrical machine comprising a stator and a rotor with at least one permanent magnet, the device comprising a magnetizer unit for magnetizing the at least one permanent magnet of the rotor, a rotor load unit and a translation unit for translating the rotor from the magnetizer unit to a rotor load unit for inserting the rotor into the stator. The invention also relates to a method for magnetizing and assembling an electrical machine comprising a stator and a rotor with at least one permanent magnet at a magnetizing unit. 1. A device for magnetizing and assembling an electrical machine comprising a stator and a rotor with at least one permanent magnet , the device comprising a magnetizer unit for magnetizing the at least one permanent magnet of the rotor , a rotor load unit and a translation unit for translating the rotor from the magnetizer unit to a rotor load unit for inserting the rotor into the stator.2. A device according to wherein the translation unit comprises a rotor flip assembly and a rotor flip drive arranged to pivot the rotor flip assembly from a first position to a second position.3. A device according to claim 2 , wherein the rotor flip assembly comprises a rotor flip arm arranged to provide a down force on the rotor to keep the rotor in position in respect to the magnetizer unit during magnetization.4. A device according to wherein the rotor load unit comprises a stator fixture for receiving the stator of the electrical machine and a first and a second fixture to receive and fixate a shaft of the rotor at a first and a second end of the shaft claim 1 , the stator fixture is arranged to move linearly in respect to the rotor thereby moving the stator linearly and inserting the rotor into the stator.5. A device according to wherein the rotor load unit comprises a stator fixture for receiving the stator of the electrical machine claim 1 , and a rotor platform with a first and a ...

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Номер записи: 100