Removable Pole Patents (Class 310/216.079)
  • Patent number: 10559987
    Abstract: An electromagnetic armature comprising an electromagnetic yoke having a cylindrical surface of axis z, intended to be facing an air-gap. Said cylindrical surface is the interaction surface and comprises a plurality of teeth forming poles, associated with the interaction surface and projecting from same, and disposed at regularly spaced intervals around the whole yoke. Each tooth comprises a recess arranged on one of the faces of the tooth in a so-called polar plane. Each recess is intended to receive the winding. Said teeth are disposed on the yoke in such a way that the recesses are disposed alternately to either side of the polar plane. Alternatively, one or more teeth of the armature can be removed from the yoke.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: February 11, 2020
    Assignee: Francecol Technology
    Inventors: Fran├žois Bernot, Victor Ivan Bernaola Mendoza, Rodret Charles Mbikou Moutsinga
  • Patent number: 9577480
    Abstract: A rotor includes a plurality of salient poles, each of which is formed by a plurality of plate members including steel plates that are stacked together, provided extending in a radial direction and around which a coil is wound. The plurality of salient poles has auxiliary salient poles that protrude from the salient poles between two salient poles that are adjacent to one another. The auxiliary salient poles are formed by only a first plate member that is a portion of plate members that forms the salient poles.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: February 21, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Eiji Yamada, Ryoji Mizutani, Shintaro Chinen, Kenji Hiramoto, Hideo Nakai
  • Patent number: 9153946
    Abstract: A power distribution contactor mount, and a power distribution system incorporating the same, include a plurality of electrically and thermally conductive contactor posts operable to connect a contactor lead to a bus bar, a mounting panel face, wherein each of the contactor posts is received in the mounting panel face and extends through the mounting panel face, and a first heat dissipation component mounted on the mounting panel face and thermally connected to each of the contactor posts. The thermal connection is via a thermally conductive and electrically insulative polymer insert, and each of the posts protrudes through the first heat dissipation component.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: October 6, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Debabrata Pal
  • Publication number: 20140217837
    Abstract: A stator for an electric motor or generator comprising a circumferential support having a plurality of protrusions circumferentially distributed about the support; and a plurality of teeth arranged to receive coil windings, wherein each tooth includes a recess with interlocking means formed within the recess for engaging with a protrusion mounted on the circumferential support in a radial direction.
    Type: Application
    Filed: February 3, 2011
    Publication date: August 7, 2014
    Inventor: Esad Jaganjac
  • Patent number: 8766508
    Abstract: A rotor for a motor is provided including: a rotor core including at least one a first coupling portion on an outer circumference thereof, wherein the first coupling portion includes a first coupling groove or a first coupling projection; at least one division core spaced apart from the rotor core and including a second coupling portion on an outer circumference thereof, the second coupling portion including a second coupling groove or a second coupling projection; and a connecting pin including a third coupling portion and a fourth coupling portion, the third coupling portion to be coupled to the first coupling portion and the fourth coupling portion to be coupling to the second coupling portion.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: July 1, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sung-Hyuk Park
  • Patent number: 8736135
    Abstract: Teeth are arranged annularly around a rotation axis. The yoke has through holes. The through holes open in a radial direction around the rotation axis and in an axial direction along the rotation axis. The teeth are inserted through the through holes. A metal plate is arranged to face the yoke in the axial direction. A reinforcing plate is fixed to the teeth.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: May 27, 2014
    Assignee: Daikin Industries, Ltd.
    Inventors: Yoshinari Asano, Nobuyuki Kifuji, Tomonori Kikuno, Shin Nakamasu, Ryuuji Yasumoto
  • Patent number: 8716913
    Abstract: In some embodiments, an electromagnetic machine includes a rotor element configured for movement relative to a stator. The rotor element includes a support member, a backing member, and a magnetic pole assembly. The support member includes a first coupling portion. The backing member is formed, at least in part, from a ferromagnetic material and the magnetic pole assembly is configured to be coupled to the backing member. The magnetic pole assembly and/or the backing member include a second coupling portion configured to removably couple the backing member and the magnetic pole assembly collectively to the first coupling portion of the support member.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: May 6, 2014
    Assignee: Boulder Wind Power, Inc.
    Inventors: Michael A. Kvam, Brian J. Sullivan, James David Duford, James D. Jore, Matthew B. Jore, David Samsel, James S. Smith
  • Patent number: 8704420
    Abstract: Disclosed is a stator for an electric machine. The stator is provided with a stator core, and first and second series of coils each formed into a predetermined shape. Each of the coils in the first series is provided with a pair of first coil ends which respectively protrude from both end faces of the stator core. Each of the first coil ends is provided with a pair of bent portions which extend outward in the radial direction of the stator, and a bridge portion which connects the bent portions. Each second coil end is provided with a pair of upright portions and a bridge portion which connects the upright portions. The bridge portions of the coils in the first series are disposed outside the bridge portions of the coils in the second series in the radial direction of the stator. The bridge portion of each of the coils in the second series extends across the bent portions of two adjacent coils in the first series.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: April 22, 2014
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Hiroshi Kawano, Hirohito Hayashi, Satoru Baba
  • Patent number: 8689427
    Abstract: A stator for an electric motor has a stator core, a winding and a housing enclosing the stator core and winding. The stator core has a yoke and a plurality of poles extending inwardly from the yoke. The winding formed by coils wound about the poles of the stator core. The housing grips the stator core and has at least one inwardly deformed portion that retains the stator core in the housing and prevents rotational movement of the stator core relative to the housing. A method of producing the stator is also disclosed.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: April 8, 2014
    Assignee: Johnson Electric S.A.
    Inventors: Yvan Bourqui, Miha Furlan, Michael Watzek, David Zimmermann
  • Patent number: 8653714
    Abstract: A stator for an electric rotating machine includes a stator core that has an annular yoke portion, a plurality of tooth portions, a plurality of connecting portions and a plurality of slots. The tooth portions are separately formed from and assembled to the yoke portion. Each of the tooth portions extends radially inward from a radially inner periphery of the yoke portion. The tooth portions are arranged in the circumferential direction of the yoke portion at predetermined intervals. Each of the connecting portions circumferentially extends to connect a corresponding circumferentially-adjacent pair of the tooth portions. Each of the slots is formed between a circumferentially-adjacent pair of the tooth portions. Moreover, each of the slots is partitioned by a corresponding one of the connecting portions into a radially-outer section and a radially-inner section.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: February 18, 2014
    Assignee: Denso Corporation
    Inventors: Makoto Taniguchi, Satoshi Ito
  • Patent number: 8492951
    Abstract: A stator assembly includes a segmented stator having stator portions. Each stator portion includes a support structure and dovetails, each coupled to the support structure by adjustable elements. The stator portion also includes stator laminations, where each of the laminations has openings to engage with the dovetails. Connectors are provided to connect the stator portions of the segmented stator together.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: July 23, 2013
    Assignee: General Electric Company
    Inventors: Robert Michael Zirin, Murtuza Lokhandwalla, Kiruba Sivasubramaniam Haran, Richard Nils Dawson, Mark John DeBlock
  • Patent number: 8350441
    Abstract: A motor includes a shaft, a rotor, a stator, and a housing. The stator preferably includes a core including a plurality of teeth, a plurality of coils, and electrically insulating tubes. The core is defined by a combination of a plurality of unit cores each of which has a separate one of the teeth. The plurality of coils include two or more continuous coils defined by a single line of a conductor wire. Each of the electrically insulating tubes is arranged to cover at least a portion of the conductor wire which passes between the continuous coils.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: January 8, 2013
    Assignee: Nidec Corporation
    Inventors: Keisuke Fukunaga, Motofumi Otsuji, Masato Aono
  • Patent number: 8334632
    Abstract: A stator includes a stator-core having slots and teeth, and a back-yoke having convex and concave portions. The convex portions are partially inserted into the slots, and the concave portions receive the teeth. The teeth include tip portions whose circumferential widths become larger along a radial direction from the inside to the outside of the stator. The back-yoke includes convex portions whose circumferential widths become larger along the radial direction from the outside to the inside of the stator. The tip portions and the convex portions have substantially the same shape. The length of a joint portion between the tip portion and the convex portion, the circumferential width of the tooth corresponding to a tip surface of the convex portion, the width of a root portion of the tooth, and the circumferential width of the convex portion corresponding to a bottom face of the concave portion are substantially the same.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: December 18, 2012
    Assignee: Denso Corporation
    Inventors: Keiji Kondou, Makoto Taniguchi, Takeo Maekawa, Akira Fukushima, Akito Akimoto, Shin Kusase, Yuya Mizuma
  • Patent number: 8310126
    Abstract: A radial flux permanent magnet AC motor/generator employs a flat circular stator plate having a plurality of separately-formed electromagnets mounted in a ring pattern on a top surface thereof. A circular flux ring fabricated of powdered metal is mounted to the stator plate outside the ring of electromagnets. A plurality of permanent magnets are mounted in a ring pattern on the outer cylindrical surface of a steel rotor. The stator plate and rotor are axially and diametrically aligned such that the ring of permanent magnets rotates in close proximity to and inside the ring of electromagnets. The electromagnets utilize powder metal cores shaped to have rounded corners and flat sides that permit the use of heavier gauge windings and eliminate the air gaps that exist between the core and windings of prior art electromagnets.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: November 13, 2012
    Assignee: Motor Patent Licensors, LLC
    Inventors: Thomas H. Hopkins, Nicholas R. Bries, Scott T. Graham, Howard F. Hendricks, Patrick J. Stoever
  • Patent number: 8080916
    Abstract: A direct current motor with brushes in which an armature is provided with a rotating shaft that is supported by a yoke housing, an armature core that is fitted and fixed to a rotating shaft from the outer side, and a commutator that is provided on the rotating shaft adjacent to the armature core with nine segments arranged in the circumferential direction. The armature core has nine teeth that extend in the radial direction in a radial pattern and nine slots that are formed between the teeth and extend in the axial direction, the segments having the same polarity are connected with short-circuiting members, and a pair of brushes that make sliding contact with the segments is disposed so as to be mutually point symmetric centered on the rotating shaft. According to the preset invention, it is possible to effectively achieve flattening of the direct current motor.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: December 20, 2011
    Assignee: Mitsuba Corporation
    Inventors: Naoki Shioda, Yoshichika Kawashima
  • Patent number: 8076815
    Abstract: Electrical machines having pole teeth which can be equipped with a permanent magnet are intended to be capable of being assembled more easily. Provision is made for this purpose for two pole tooth halves (1,2) to be provided for each pole tooth, each of which two pole tooth halves has two opposing end sides. At least one end-side plate (3), which connects in each case one end side of the two pole tooth halves (1,2) to one another, is used for forming a pocket (5) between the two pole tooth halves (1,2), into which pocket a permanent magnet can be inserted. A space for the permanent magnet can therefore be kept free during assembly of the pole tooth or during winding thereof. Since the permanent magnet only needs to be inserted into the pocket (5) relatively late, the entire assembly process can be simplified.
    Type: Grant
    Filed: February 19, 2007
    Date of Patent: December 13, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventors: Mark Freudenberg, Markus Jakobi, Josef Maidl, Michael Menhart
  • Patent number: 8004142
    Abstract: A stator assembly is provided with detachable teeth that are made of magnetic powder material. The teeth are so configured and sized as to be interconnected to a core body of the stator with pre-formed coils that are positioned between adjacent teeth.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: August 23, 2011
    Assignee: TM4 Inc.
    Inventors: Stephane Poulin, Ruisheng Shi, Sebastien Bigras, Gabriel Rakotonirina, Steve Fleming, Martin Houle
  • Publication number: 20110133479
    Abstract: An arrangement to set up and to ensure an air gap in an electrical machine, like a generator, is provided. The electrical machine includes a stator arrangement and a rotor arrangement. The rotor-arrangement rotates around a longitudinal axis. At least parts of the rotor arrangement interact with parts of the stator arrangement to generate electrical power. An air gap is defined by the distance between the parts of the rotor arrangement and the parts of the stator arrangement. The parts of the stator arrangement are opposite to the parts of the rotor arrangement along a certain length. The cross-section of the air gap changes along the certain length, so that the air gap is not uniform in view to the referred certain length.
    Type: Application
    Filed: December 6, 2010
    Publication date: June 9, 2011
    Inventor: Henrik Stiesdal
  • Patent number: 7906885
    Abstract: A brushless electric machine includes a rotor and a stator. Each of the twin poles of the stator electromagnetic members corresponds to one of the two magnetic poles of the rotor magnetic assembles. Two radial component air-gaps are arranged between the stator and the rotor to separate the stator and the rotor. Axial component air-gaps axially corresponding are arranged between the stator poles and the corresponding rotor poles to separate the stator poles and the rotor poles. The stator wheel-shaped ring is partly surrounded by the rotor wheel-shaped ring.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: March 15, 2011
    Assignees: Union Plastic (Hangzhou) Machinery Co., Ltd.
    Inventor: Weiting Lu
  • Publication number: 20110037335
    Abstract: The present invention relates to an axial motor, and more specifically, to an axial motor which has a simple structure and is easily assembled by inserting and holding core teeth in core teeth insertion holes circularly arranged on a yoke. The axial motor according to the present invention includes: a stator having core teeth which are insulated by insulators, arranged in a ring-shaped pattern, and have a coil wound thereon; and a rotor having magnets which are arranged in a ring-shaped pattern to face the ends of the core teeth in an axial direction and are supported by the rotor axis at the center of the rotor to rotate relatively with respect to the stator.
    Type: Application
    Filed: October 26, 2010
    Publication date: February 17, 2011
    Applicant: NEW MOTECH CO., LTD.
    Inventors: Jeong Cheol JANG, Ji Min LEE
  • Patent number: 7884520
    Abstract: A brushless motor according to the present invention is provided with a tubular stator case, a stator core fitted into the stator case, and a rotor rotatably supported via a bearing inside the stator core. The stator core includes a tubular yoke portion and a plurality of split cores which are detachably mounted on the tubular yoke portion. A plurality of commutating-pole teeth which extend radially inward are integrally formed on an inner peripheral surface of the tubular yoke portion at regular intervals in the peripheral direction of the tubular yoke portion; and a root portion of each of the commutating-pole teeth has inclined shoulders which are gradually enlarged radially outward.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: February 8, 2011
    Assignees: Mitsuba Corporation, Honda Motor Co., Ltd.
    Inventors: Hisashi Ishida, Tohru Yumoto, Masaki Ishizeki, Susumu Miyazaki, Kazushi Hamaya
  • Patent number: 7859162
    Abstract: Stable electrical connections between coils and a commutator are realized without causing slackening of the coils wound on individual magnetic teeth. An armature of a rotary motor includes an armature core structured splittably into magnetic tooth members which are individually wound by concentrated-winding type coils, and a commutator having the same number of segments as the number of the magnetic tooth members, the individual segments having connecting terminals, wherein an end portion of the coil concentratedly wound on one of the magnetic tooth members is connected generally in a straight line to the connecting terminal of the segment which is located at a position offset in a circumferential direction by a specific angle from the aforementioned one magnetic tooth member, and a conductor line connected to the connecting terminal of the segment is concentratedly wound on another magnetic tooth member adjacent to the aforementioned one magnetic tooth member.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: December 28, 2010
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazuyuki Yamamoto, Koichi Tao, Yuki Fujioka
  • Patent number: 7847443
    Abstract: The modular conical stator pole provides an improved conical stator assembly on electrical machines. The improved conical stator pole assembly comprises a plurality of stator poles, each pole comprising an assembly having a coil secured on a soft magnetic composites (SMC) stator pole tooth by inserting a winding support through the open core of the coil and attaching a back iron and a stator face to either end of the winding support. Each stator pole having a parallelogram shaped cross section for forming a conical shaped rotor space when the stator poles are assembled having the back irons bearing against each other to space the coils apart and form a conical shaped outside profile of the stator pole assembly. The conical stator having a small end and a big end. The tooth comprising a winding support integrally molded with either the back iron or the face.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: December 7, 2010
    Assignee: Burgess-Norton Mfg. Co., Inc.
    Inventor: David Farnia
  • Publication number: 20100275660
    Abstract: Disclosed are a motor including a stator and a rotor separated from each other in an axial direction and a washing machine having the motor. Teeth made of a member formed separately from bobbins formed on the stator are installed on the bobbins. Therefore, the teeth are installed on the bobbins after a wire is wound on the bobbins.
    Type: Application
    Filed: April 8, 2010
    Publication date: November 4, 2010
    Inventors: Keun Young Yoon, Young Kwan Kim
  • Patent number: 7821165
    Abstract: A motor includes: a rotor in which 10 poles are magnetized at regular intervals; a stator having 12 core pieces and facing the rotor, all core pieces having a concentrated winding wound in the same direction and being annularly arranged; and a wiring board for making 3-phase connection of the windings. A wire connection is made through the wiring board in such a manner that electric currents of adjacent same phase windings flow in opposite directions and of electric currents of adjacent different phase windings flow in same directions.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: October 26, 2010
    Assignee: Panasonic Corporation
    Inventors: Mitsuru Yamane, Manabu Takeuchi
  • Patent number: 7808149
    Abstract: A segmented electric generator/motor, such as for a wind powered generator, in which the rotor and/or stator is subdivided in the circumferential direction into segments disposed adjacent to one another. Additionally, the stator segments are accessible via and the rotor segments can be installed and removed in the axial direction in rotor segment mounts provided in the rotor ring. Each rotor segment preferably includes a base shaped to prevent radial and circumferential or tangential motion of the rotor segment while permitting axial motion in the rotor segment's respective mount. The rotor ring segment mounts are preferably sized to allow removal of stator segments through the openings.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: October 5, 2010
    Assignee: Wilic S.AR.L.
    Inventors: Otto Pabst, Michael Kleinlercher
  • Patent number: 7786646
    Abstract: A magnetic force rotation device includes a rotor and a stator. The rotor is provided with a plurality of magnetic assemblies containing permanent magnet. The plurality of magnetic assemblies are arranged along the circumferential direction of the rotating shaft to form a wheel-shaped ring, and each magnetic assembly is provided with two magnetic poles. The stator is provided with a plurality of magnetically isolated electromagnets coaxially arranged. The electromagnets form a wheel-shaped ring around the rotating shaft, and each electromagnet is provided with paired poles. The wheel-shaped ring of the stator is at least party surrounded by the wheel-shaped ring of the rotor, so that each pole of the paired poles of the electromagnets of the stator corresponds to one magnetic pole of the two magnetic poles of the magnetic assemblies of the rotor respectively. Two axial component air gaps are provided between the rotor and the stator.
    Type: Grant
    Filed: April 1, 2007
    Date of Patent: August 31, 2010
    Assignees: Union Plastic (Hangzhou) Machinery Co., Ltd.
    Inventors: Weiting Lu, Hsiaoting Lu
  • Patent number: 7755244
    Abstract: A stator of an electrical machine operable as a motor or a generator, applicable to a radial-axial type machine. The stator includes a plurality of stator segments disposed circumferentially about an axis. Each segment has a generally wedge shaped core and a winding wound around the core. The winding is bent to have portions that are disposed on multiple planes. The core includes an elongated wedge tip portions aligned parallel to the axis and an outer radial face opposite to the tip portion. The multiple planes include at least one plane substantially normal to the axis and at least one plane tangential to the radial face.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: July 13, 2010
    Assignee: UQM Technologies, Inc.
    Inventors: Josh Ley, Victor Chieduko, Jeff Frazzini, Kevin Lewis, Philip Caffery
  • Publication number: 20100138127
    Abstract: An electric motor includes one or more separate coil sets arranged to produce a magnetic field of the motor. The electric motor also includes a plurality of control devices coupled to respective sub-sets of coils for current control. A similar arrangement is proposed for a generator. A coil mounting system for an electric motor or generator includes one or more coil teeth for windably receiving a coil for the motor and a back portion for attachably receiving a plurality of the coil teeth. A traction control system and method for a vehicle having a plurality of wheels independently powered by a respective motor. A suspension control system and method for a vehicle having a plurality of wheels, each wheel being mounted on a suspension arm of the vehicle and being independently powered by a respective motor.
    Type: Application
    Filed: July 13, 2007
    Publication date: June 3, 2010
    Applicant: QED GROUP LIMITED
    Inventor: Martin Boughtwood
  • Patent number: 7728482
    Abstract: The invention relates to a brushless DC machine comprising a rotor and a stator that supports a winding assembly. The stator encompasses a toothed rim with tooth tips that extend radially outward as well as a return ring. The toothed rim and the return ring are embodied so as to engage into each other in a radial direction. The invention further relates to a return ring packet, a toothed rim packet, a top piece, and a method for producing a brushless DC machine.
    Type: Grant
    Filed: January 23, 2006
    Date of Patent: June 1, 2010
    Assignee: Robert Bosch GmbH
    Inventor: Hartmut Seiler
  • Patent number: 7723891
    Abstract: A motor including a mounting shaft having a hollow channel and a bearing attached to each end, a cylindrical hub having a hollow core for the mounting shaft, and plural rows of plural Molded Magnetic Flux Channels with a hollow core and a channel forming a U-shaped recess and mounted the surface of the hub, each row corresponding to a motor phase. Each magnetic flux channel forms two pole pieces divided by the channel. The motor also includes plural phase windings, one passing through each row of plural Molded Magnetic Flux Channels, a rotating drum having plural rows of permanent magnets on an inner surface, each row pair corresponding to and aligned with one of the plural rows of Molded Magnetic Flux Channels. The rotating drum connected with the bearing, and drive electronics for driving the plural phase windings, wherein the plural Molded Magnetic Flux Channels increases torque and motor efficiency.
    Type: Grant
    Filed: February 16, 2009
    Date of Patent: May 25, 2010
    Inventor: Norman Rittenhouse
  • Patent number: 7723892
    Abstract: A synchronous motor includes multiple coil segments, each of which has an iron core in the form of a core stack that is wound with a coil. The coil segments are characterized in that the coils press fastening elements having at least two legs against two opposite surfaces of the substantially right parallelepiped iron core. In each case, at least one leg of the fastening element abutting against the iron core is pressed against the iron core, and at least one free leg of the fastening element projects away from the iron core. The free legs are fastened to connecting elements that connect multiple coil segments to one another.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: May 25, 2010
    Assignee: Etel S.A.
    Inventors: Vincent Cardon, Jean-Pierre Morel
  • Patent number: 7701107
    Abstract: Included are a rotor, and a stator having a yoke section and a teeth section including multiple teeth. The teeth section and the yoke section are made of mutually independent configuration members, and connected to each other. At least one of the teeth section and the yoke section is formed by connecting each neighboring two of its multiple segments arranged one after another in a direction in which the rotor rotates. At least some neighboring teeth out of the multiple teeth are unified.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: April 20, 2010
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Hiroaki Sagara, Yukifumi Yamaguchi, Takashi Uchino, Kazuhiro Tomoshige, Keiji Kishimoto, Tetsuji Ueta, Kenji Taguchi
  • Patent number: 7646130
    Abstract: A stator assembly is provided for an electric motor having a longitudinal axis. The stator assembly includes at least one stator segment having a first end member having a stator tooth and at least one of a stator shoe and a back iron. A second end member is positioned with respect to the first end member and has a stator tooth and at least one of a stator shoe and a back iron. A winding generally circumscribes the stator tooth of the first end member and the stator tooth of the second end member. The first and second end members have a parting line generally perpendicular to the longitudinal axis of the motor. A motor incorporating the stator assembly of the present invention is disclosed. Additionally, a method of forming the stator assembly of the present invention is described.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: January 12, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Alan G. Holmes, Richard A. Ordo, Ahmed M. El-Antably
  • Publication number: 20090236919
    Abstract: A stator assembly is provided with detachable teeth that are made of magnetic powder material. The teeth are so configured and sized as to be interconnected to a core body of the stator with pre-formed coils that are positioned between adjacent teeth.
    Type: Application
    Filed: February 10, 2009
    Publication date: September 24, 2009
    Inventors: Stephane POULIN, Ruisheng SHI, Sebastien BIGRAS, Gabriel RAKOTONIRINA, Steve FLEMING, Martin HOULE