Miscellaneous Stator Structure Patents (Class 310/254.1)
  • Patent number: 11532975
    Abstract: The invention relates to a brushless direct current motor, having a rotor made up of at least one permanent magnet and a stator having at least three partitions (160) radially extending from a circular based cylindrical main body (170), the partitions (160) together defining at least two volumes for receiving at least three coils generating a magnetic field, wherein each volume is closed by a wall (170) connecting the partitions (160), and in that the wall comprises, on the face thereof oriented toward the rotor, at least one magnetic restriction zone. A sleeve (4) surrounds the stator and the rotor and has at least one deformation zone formed by cutouts (11) adapted to maintain the external geometrical configuration of the sleeve (4) when mounting the constituent elements of the motor. The invention also relates to a method for manufacturing such a motor.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: December 20, 2022
    Inventor: Sylvain Abraham
  • Patent number: 11502561
    Abstract: A stator includes a yoke extending to surround an axis, and having an outer circumference and an inner circumference. The yoke has a crimping portion projecting from the outer circumference, and a split surface provided at a position different from a position of the crimping portion. The yoke has a magnetic path which is provided between the outer circumference and the inner circumference and through which magnetic flux flows. When L1 represents the width of the magnetic path, and L2 represents the width of the yoke including the crimping portion, L1<L2<2.6×L1 is satisfied.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: November 15, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventor: Kazuchika Tsuchida
  • Patent number: 11451099
    Abstract: A method of assembling a coil on an irregular-shaped multi-part tooth of an electric machine may include inserting at least one wedge-portion of the multi-part tooth into an opening of the coil such that a broader end of the at least one wedge-portion extends out of the opening in the coil. The method may also include mounting the coil with the inserted at least one wedge-portion on a core tooth-portion of the multi-part tooth such that the broader end of the at least one wedge-portion remains extended out of the opening in the coil, exerting a force on the broader end of the at least one wedge-portion to tighten the coil on the multi-part tooth.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: September 20, 2022
    Assignee: EVR MOTORS LTD
    Inventors: Victor Kislev, Oleg Gaspar, Ruslan Shabinski, Eliyahu Rozinsky
  • Patent number: 11309770
    Abstract: An in-wheel electric motor includes at a vehicle side an elongated connector, a cylindrical stator body connected to the connector and on an outer surface of the stator body equipped with stator windings, a cylindrical rotor body enclosing the stator, and a power electronics device powering the stator windings. The connector is provided with a first opening of a feed channel for coolant and a second opening of a return channel for coolant, each of the feed and return channels being parallel to an axial direction of the connector. The electric motor includes a cooling circuitry with a feed connector and a return connector for coolant, which circuitry includes a coolant supply channel that extends from the feed connector through first the power electronics device and subsequently through a cooling jacket that is situated at the perimeter of the cylindrical stator body and from there to the return connector.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: April 19, 2022
    Assignee: E-TRACTION EUROPE B.V.
    Inventors: Timothy Van Seventer, Reinhard Peter Van Der Wal
  • Patent number: 11296572
    Abstract: A radial flux electric machine includes a rotor configured to rotate about an axis of rotation and a stator fixedly positioned proximate the rotor. At least one of the rotor or the stator may include a plurality of teeth annularly arranged about the axis of rotation. Each tooth of the plurality of teeth may extend in a radial direction such that a plurality of cross-sectional areas of each tooth in a plurality of planes perpendicular to the radial direction may vary. And perimeters of the plurality of cross-sections may be substantially the same across the plurality of perpendicular planes.
    Type: Grant
    Filed: September 21, 2021
    Date of Patent: April 5, 2022
    Assignee: EVR MOTORS LTD
    Inventors: Victor Kislev, Oleg Gaspar, Ruslan Shabinski, Eliyahu Rozinsky
  • Patent number: 11283312
    Abstract: A stator system for an electric vehicle motor may include a stator having a torque key extending axially from a first stator end, a case configured to surround the stator and defining a case opening to receive the torque key, the case defining a keyway between the torque key and the case opening, a torque key mechanism arranged within the keyway, wherein the torque key mechanism includes a pair of reciprocally aligned wedges defining a channel through at least one of the wedges, and a bolt insertable at the channel and configured to engage the channel to move at least one wedge and create an interference fit of the torque key mechanism within the keyway to attach the stator to the case.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: March 22, 2022
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventor: Bradley Ronald Heuver
  • Patent number: 11277048
    Abstract: An insulator includes a part to be wound with a coil of a wiring wire with a circular cross section; first and second flanges. The first flange is formed at the side of the part closer to a core segment. The second flange is formed at the side closer to a distal end of a tooth. The part to be wound with the coil has a slope continuous with the first flange and inclined so that a height from an upper surface of the tooth increases from the first flange toward the second flange. Expression 0<(?6.8 D+b)??<30 is satisfied, where b is a constant and 8.3?b?11.6 is satisfied, D (mm) is a diameter of the coil, and ? (°) is an angle of the slope inclined from the upper surface of the tooth as a reference surface.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: March 15, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Mitsuoki Hishida, Hiroshi Yoneda, Hirokatsu Kunitomo, Yuichi Yoshikawa
  • Patent number: 11264846
    Abstract: A stator for an electric machine having a plurality of radially extending teeth, supported by an outer annular yoke radial to the teeth, at least part of the teeth supporting a coil and the outer annular yoke having flutes of partially cylindrical shape opening towards the teeth, at least part of the teeth each having, at their end, on the side of the outer annular yoke, a protuberance of partially cylindrical shape, the protuberance being held in the flute by contact points so that at least one part of the teeth performs a relative movement having a degree of rotational and/or translational freedom relative to the annular yoke.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: March 1, 2022
    Assignee: Moving Magnet Technologies
    Inventors: Gael Andrieux, Gilles Tonnelier, Pierre Marchal
  • Patent number: 11258335
    Abstract: A motor stator anti-interference structure includes: a silicon steel sheet assembly, the silicon steel sheet assembly including multiple silicon steel sheets held between an insulation support assembly; a winding assembly wound on the silicon steel sheet assembly and the insulation support assembly; and a connection member inlaid in the silicon steel sheet assembly to contact all the silicon steel sheets. All the silicon steel sheets are connected to a grounding end of a circuit board through the connection member so as to increase contact area between the connection member and the silicon steel sheet assembly. The electromagnetic interference is conducted through the connection member to the grounding end of the circuit board.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: February 22, 2022
    Assignee: Asia Vital Components (China) Co., Ltd.
    Inventors: Feng Zhou, Chih-Cheng Lai
  • Patent number: 11245304
    Abstract: In a stator, a coil is wound around a stator core. A guide member is provided on one side of the stator core in the axial direction and guides the terminal line of the coil in the circumferential direction at a position overlapping the coil in the axial direction. The terminal line of a first coil includes a first axial extension part led out to one side in the axial direction. The terminal line of a second coil adjacent to the first coil on one side in the circumferential direction includes a second axial extension part led out to one side in the axial direction. A first position, which is a base end of the first axial extension part, and a second position, which is a base end of the second axial extension part, are set to the positions where are different in the radial direction.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: February 8, 2022
    Assignee: DENSO CORPORATION
    Inventor: Koji Hotta
  • Patent number: 11212002
    Abstract: The present application relates to a method and apparatus for transmitting a data signal between a stator ring and a rotor ring including generating, by a transmitter, a transmission signal in response to receiving the data signal, transmitting, by a plurality of optical transmitters coupled to an inner surface of the stator ring, the transmission signal to a plurality of detectors coupled to an outer surface of the rotor and wherein the optical transmitters are configured to transmit the transmission signal towards a focus of the stator ring, summing a plurality of representations of the transmission signal received by each of the plurality of detectors to generate a summed transmission signal, and extracting, by a receiver, the data signal from the summed transmission signal.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: December 28, 2021
    Assignee: GENERAL DYNAMICS LAND SYSTEMS—CANADA CORPORATION
    Inventor: James Lougheed
  • Patent number: 11165235
    Abstract: An object is to suppress concentration of stress on electrical wires when the electrical wires are bent in the vicinity of a bracket. A bracket-equipped conductive path includes a conductive path main body that is constituted by a plurality of coated wires, a protector that surrounds the conductive path main body, and a bracket that is made of metal and includes a base portion that is embedded in the protector in such a manner that detachment of the base portion from the protector is restricted and an attachment portion that extends from the base portion. The base portion has a flat plate shape and is arranged to face the conductive path main body in a direction that is substantially parallel to a thickness direction of the base portion.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: November 2, 2021
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Kyungwoo Kim, Toshinari Kobayashi, Hironobu Yamamoto, Koichi Kato
  • Patent number: 11139714
    Abstract: A conventional axial gap rotary electric machine does not consider winding movement caused by resin molding in the vicinity of a lead-out part provided to a housing. In order to solve the problem, the axial gap rotary electric machine according to the present invention includes a stator which is formed by circularly arranging a plurality of core units having coils about a rotation shaft and which has a connecting wire that fastens, for each layer, coil rising wires from the plurality of core units, and the axial gap rotary electric machine has a configuration in which: the housing has a lead-out part through which the connecting wire is taken out to the outside of the housing; and the stator is arranged such that the region where the coil rising wire from the core unit is fastened with the connecting wire is located so as to avoid the region opposed to the lead-out part, the stator being integrally molded.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: October 5, 2021
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Yasuei Yoneoka, Shuuichi Takahashi, Toshifumi Suzuki, Toru Sakai, Katsuyuki Yamazaki, Daisaku Takahashi, Daisuke Kurai
  • Patent number: 11081937
    Abstract: An integrated motor drive includes a frame assembly, a motor, a motor driver and a heat dissipation assembly. The frame assembly includes a first frame and a second frame. The motor is installed on the first frame. The motor driver is installed on the second frame. The heat dissipation assembly includes a motor heat exchange pipe, a motor driver heat exchange pipe, and a heat dissipation pipe. The motor heat exchange pipe is embedded in the first frame, and located at one side portion of the motor for performing heat exchange with the motor. The motor driver heat exchange pipe is embedded in the second frame for performing heat exchange with the motor driver. The heat dissipation pipe is located at an end portion of the motor, and communicated with the motor heat exchange pipe and the motor driver heat exchange pipe.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: August 3, 2021
    Assignee: Chicony Power Technology Co., Ltd.
    Inventors: Wang-Hsuang Huang, Chen-Shi Chou
  • Patent number: 11081936
    Abstract: A wet cavity electric machine includes a stator core having two stator poles formed by a post and a wire wound about the post to form a stator winding, with the stator winding having end turns, and a rotor having two rotor poles and configured to rotate relative to the stator and a channel for liquid coolant to flow through the rotor, and at least one fluid port in fluid communication with the channel and the stator winding end turns wherein the end turns will be exposed to liquid coolant passing through the channel.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: August 3, 2021
    Assignee: GE Aviation Systems LLC
    Inventors: Hao Huang, Jan Zywot, Xiaochuan Jia
  • Patent number: 11031837
    Abstract: In a vehicle motor unit comprising: a motor; and a storage housing storing the motor, the motor including a rotor arranged rotatably around a rotation axis, a stator disposed on an outer circumferential side of the rotor, and a high voltage portion disposed on the stator, an outer circumferential surface of the stator is configured to surface contact with a part of a wall surface of the storage housing receiving a larger collision load at the time of a vehicle collision as compared to the other parts.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: June 8, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tatsuki Honda, Yukinobu Nishikawa, Kazuki Iwakura
  • Patent number: 11031847
    Abstract: An electric drive includes a rotor and a stator in toothed-coil technology, wherein the stator has a number of individual tooth modules. A respective individual tooth module has a stator winding which is wound around an associated tooth, a control device which is designed to generate an activation signal for the stator winding, and a shielding device which surrounds the stator winding and the control device.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: June 8, 2021
    Assignee: Lenze Drives GmbH
    Inventors: Jan Wettlaufer, Holger Borcherding
  • Patent number: 10958116
    Abstract: An electric motor and a method of making the electric motor is disclosed herein. The motor comprises a stator and a rotor being arranged coaxially, with said rotor provided internally of said stator. The stator having one or more stator teeth extending radially inwardly towards said rotor. The rotor has a plurality of magnets forming an outer rotor surface. A first face of the or each stator tooth faces the outer rotor surface. An electrically-conductive non-magnetic damper bar is partially embedded in the or each stator tooth, the or each damper bar having an outer damper bar surface. A groove is formed in the first face of the or each stator tooth to at least partially expose the outer damper bar surface. The groove can improve flux linkage between the rotor and the damper bars and thus improve the damping of the electric motor.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: March 23, 2021
    Assignee: GOODRICH ACTUATION SYSTEMS LIMITED
    Inventor: Maamar Benarous
  • Patent number: 10826362
    Abstract: In a laminated iron core formed by laminating a plurality of iron core pieces, at least one of an inner circumferential portion or an outer circumferential portion of the iron core piece is provided with a connection recess part which is connected with a connection part of a caulking piece detachable in a radial direction from the connection recess part, an outer circumferential edge of the connection part has the same shape as an inner circumferential edge of the connection recess part, and a bottom portion of the connection recess part is not configured by a single straight line.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: November 3, 2020
    Assignee: MITSUI HIGH-TEC, INC.
    Inventor: Yusuke Hasuo
  • Patent number: 10756609
    Abstract: The present invention discloses a distributed electromagnetic apparatus is made up of an induction coil assembly and a magnet assembly to reduce increase magnetic stress and loss of kinetic energy. The magnet assembly has at least one magnetic member arranged at each of two ends of the coil such that the magnetic members are arranged in pair as being opposite to each other with opposite polarities facing each other. The center of the magnetic member corresponds to an axis of the coil and centers of the magnetic members that are located at two opposite sides being each set at a location between centers of two adjacent conjugate teeth of the magnetic conductor. The magnetic member generates magnetic stress to form inclined forces in opposite directions so that horizontal force components on two sides are opposite in directions and cancel each other and vertical force components on two sides are reduced.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: August 25, 2020
    Assignee: YUZEN SUSTAINABLE ENERGY CO., LTD.
    Inventors: Yungshun Hsu, Mingchun Hsu, Wenyu Hsu
  • Patent number: 10644561
    Abstract: A stator structure according to an embodiment includes a stator core having a plurality of teeth; insulators configured to cover the teeth; a coil wound around each of the teeth with the insulators interposed therebetween; and first and second coil covers configured to cover the coil, each of the first and second coil covers being formed in an annular shape. The insulators have respective flange parts configured to cover respective distal end portions of the teeth. Each of the first and second coil covers has a first peripheral wall. The first peripheral wall of the first coil cover and the flange part located on one side of the insulator are arranged to face each other with a space therebetween. The first peripheral wall of the second coil cover and the flange part located on the other side of the insulator are arranged to face each other with a space therebetween.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: May 5, 2020
    Assignee: MINEBEA MITSUMI, INC.
    Inventors: Hiroshi Abe, Naohiro Yamada, Mutsumi Matsuura
  • Patent number: 10630153
    Abstract: A laminated iron core is made of a stator iron core formed by laminating a plurality of iron core pieces with a predetermined shape, and a caulking block detachable along a radial direction is formed in each of the iron core pieces. In a method for manufacturing the laminated iron core, the caulking block detachable along the radial direction is provided in each of the iron core pieces, and the iron core pieces are laminated and joined through the caulking blocks and are arranged on a jig and then, the caulking blocks are pulled in the radial direction and are detached from the laminated iron core pieces, and the laminated iron core pieces are joined by a resin.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: April 21, 2020
    Assignee: MITSUI HIGH-TEC, INC.
    Inventors: Yusuke Hasuo, Masahiro Izumi
  • Patent number: 10544775
    Abstract: A hydroelectric energy system includes a stator including a first plurality of electricity-generating elements. The system also includes a rotor including a second plurality of electricity-generating elements. The rotor is disposed radially outward of an outer circumferential surface of the stator and is configured to rotate around the stator about an axis of rotation. The rotor is a flexible belt structure having a variable thickness and extending along a portion of an axial length of the stator. The system further includes at least one hydrodynamic bearing mechanism configured to support the rotor relative to the stator during rotation of the rotor around the stator. The at least one hydrodynamic bearing mechanism includes a bearing surface made of wood or a composite material.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: January 28, 2020
    Assignee: Oceana Energy Company
    Inventor: Daniel E. Power, III
  • Patent number: 10468949
    Abstract: A cooling structure for a rotating electrical machine includes a rotating electrical machine including a stator and the stator, a temperature sensor, and a first discharge mechanism. A plurality of discharge holes of the first discharge mechanism is disposed in a region excluding an avoidance region. The avoidance region is the same region as an arrangement region that is one of a right side region and a left side region with respect to a vertical line passing an axis of the stator as seen in the axial direction of the stator core, the one of the right side region and the left side region being a region in which the temperature sensor is arranged and the avoidance region is located above a lower end of the temperature sensor in the gravitation direction.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: November 5, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshitada Yamagishi, Takashi Imakawa, Toshiya Sugiyama, Tetsuro Ichikawa
  • Patent number: 10418889
    Abstract: A stator module pack for an axial flux electric machine is provided. The stator module pack includes a housing for attachment to a stator base and a plurality of stator modules attached to the housing. Each stator module includes a core having at least one winding disposed thereon. A plurality of stator module packs is coupled to a stator base to form a stator of the axial flux electric machine.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: September 17, 2019
    Assignee: Regal Beloit Australia Pty Ltd.
    Inventors: Mark Thiele, Greg Heins, Matthew J. Turner, Hani Chahine
  • Patent number: 10404121
    Abstract: The invention provides a stator for an electric motor comprising a plurality of radially inwardly extending teeth and comprising conductive material incorporated in one or more of the teeth.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: September 3, 2019
    Assignee: GOODRICH ACTUATION SYSTEMS LIMITED
    Inventors: Maamar Benarous, Jerôme A. Socheleau
  • Patent number: 10385856
    Abstract: The disclosure herein includes an electric submersible pump assembly for pumping fluids from a wellbore, which electric submersible pump assembly may include: a pump; a housing coupled to the pump; a body disposed in the housing, wherein the body has a central aperture, an outer surface, and a flow path disposed in the outer surface; and a shaft assembly disposed in the central aperture of the body, wherein the shaft assembly has a central flow path and a port.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: August 20, 2019
    Assignee: Lex Submersible Pumps FZC
    Inventors: Anton Shakirov, Vitaly Koropetskiy, Iaroslav Alekseev, Vadim Batalov, Evgeniy Cheremisinov
  • Patent number: 10355548
    Abstract: A motor includes a stator that has pole cores and a stator coil comprised of unit coils each being concentratedly wound around a corresponding one of the pole cores. Each of the unit coils is comprised of first and second sub-coils that are stacked in two layers in a stacking direction. Each of the first and second sub-coils is spirally wound so that coil sides of the sub-coil overlap each other in an overlapping direction perpendicular to the stacking direction. Each of the unit coils also has, at a single place, a connecting portion that connects the first and second sub-coils of the unit coil. The connecting portion is provided in a coil end of the unit coil. For each of the first and second sub-coils of the unit coil, the connecting portion is located at an innermost periphery of the sub-coil in the overlapping direction of the sub-coil.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: July 16, 2019
    Assignee: DENSO CORPORATION
    Inventor: Takashi Hirabayashi
  • Patent number: 10355573
    Abstract: A linear vibration motor comprises a frame wherein a coil is secured, and a movable element that comprises a magnet portion and a weight portion, and which is supported elastically within the frame, wherein the movable element comprises guide shafts that protrude in both axial-direction sides; the frame comprises a bottom frame that has a bottom plate portion along the axial direction, and a pair of side frames that have side plate portions and that face the axial direction; the side frame has a bearing retaining portion for holding a bearing that bears a guide shaft, and a connecting portion for connecting the bearing retaining portion to the side plate portion; the bearing retaining portion and the connecting portion are structured integrally with the side plate portion; and the bottom plate portion has an opening portion with which the bearing retaining portion engages.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: July 16, 2019
    Assignee: Nidec Copal Corporation
    Inventor: Yoshinori Katada
  • Patent number: 10340762
    Abstract: A stator for an electric rotary machine including a stator core and a coil, wherein: the coil has plural slot coils and plural connection coils, each slot coil being inserted into the slot, each connection coil connecting the slot coils in a position lying further axially outwards than an axial end face of the stator core, and the coil being constituted in such a way that the slot coil and the connection coil are joined at an abutment portion; and in a hole portion, where the abutment portion is accommodated, of a insulation plate, the connection coil and the slot coil are spaced apart from the insulation plate in the circumferential direction to thereby form a first gap portion.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: July 2, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kentaro Nagahiro, Tomotaka Iki
  • Patent number: 10323644
    Abstract: The disclosure herein includes an electric submersible pump assembly for pumping fluids from a wellbore, which electric submersible pump assembly may include: a pump; and a motor assembly coupled to the pump, the motor assembly including: a housing; a stator disposed within the housing, wherein the stator has an inner surface having a diameter; a rotor disposed in the stator, wherein the rotor has an outer surface and a magnet; a first bearing assembly disposed around the rotor; and a second bearing assembly disposed around the rotor; wherein the rotor has a length separating the first bearing assembly from the second bearing assembly; and the length divided by the diameter of the inner surface of the stator yields a ratio from 7.00 to 13.00.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: June 18, 2019
    Assignee: Lex Submersible Pumps FZC
    Inventors: Anton Shakirov, Vitaly Koropetskiy, Iaroslav Alekseev, Vadim Batalov, Evgeniy Cheremisinov
  • Patent number: 10320268
    Abstract: A stator module pack for an axial flux electric machine includes a housing for attachment to a stator base, a plurality of stator modules attached to the housing, and a drive unit attached to the housing. Each stator module includes a core having at least one winding disposed thereon. The drive unit is electrically connected to at least one stator module. A plurality of stator module packs and a plurality of drive units are coupled to the stator base to form a stator of the axial flux electric machine.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: June 11, 2019
    Assignee: REGAL BELOIT AUSTRALIA PTY LTD
    Inventors: Hani Chahine, Pamela Lee, Mark Thiele, Greg Heins
  • Patent number: 10230285
    Abstract: A rotating electric machine includes a ring-shaped cover. The ring-shaped cover includes an outer peripheral portion, an inner peripheral portion, wall portions, an outer peripheral channel, an inner peripheral channel, and radial channels. A coolant supplied into the ring-shaped cover is to flow through the outer peripheral channel by gravity. The coolant is to flow through the inner peripheral channel by gravity. The radical channels include a first radial channel and a second radial channel. The coolant is to flow from the outer peripheral channel to the inner peripheral channel by gravity through the first radial channel. The coolant is to flow from the inner peripheral channel to the outer peripheral channel by gravity through the second radial channel. The coolant is to flow from the second radical channel by gravity through the outer peripheral channel.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: March 12, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yuki Ichinoe, Tomotaka Iki
  • Patent number: 10224785
    Abstract: A cooling system for a dynamoelectric machine comprising a cooling jacket for assembly on an outer circumference of a stator of the dynamoelectric machine, a housing for receiving the stator having the mounted cooling jacket such that a hollow chamber, which can be filled with a liquid cooling medium, remains between an outer wall of the cooling jacket and an inner wall of the housing, wherein an inlet opening for inlet of the cooling medium into an inlet region and an outlet opening for outlet of the cooling medium from an outlet region of the hollow chamber are arranged on the housing and a barrier element connected to the cooling jacket for spatial separation of the inlet region from the outlet region is provided. The efficiency of such a cooling system is improved in that the barrier element presses against the inner wall of the housing having increasing pressure difference of the cooling medium in the inlet and outlet region.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: March 5, 2019
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Johannes Weis, Christian Schaefer, Stefan Mackowiak, Sebastian Heitz
  • Patent number: 10181763
    Abstract: A motor that includes a stator having an improved structure is provided. The motor includes a stator that includes stator cores wound with a coil, a rotor disposed in the stator and configured to interact with the stator and to rotate, a shaft mounted on the rotor and configured to rotate with the rotor, a printed circuit board (PCB) electrically connected to the coil, an insulator formed of an insulating material and mounted on the stator, and a terminal pin mounted on the insulator to connect the coil with the PCB. A terminal pin accommodating portion that protrudes in an extension direction of the shaft is provided in one side of the insulator and the terminal pin is accommodated in the terminal pin accommodating portion.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: January 15, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woong Hwang, Yong Woo Nam, Uk Ho Seo, Sung Gu Lee, Su Kwon Jeong, Young Kwan Kim
  • Patent number: 10177633
    Abstract: The subject matter described herein includes a multiphase fractional slot concentrated winding machine. One such machine includes a machine module including a rotor and a stator. The stator includes a plurality of radially extending teeth. Each tooth is individually wound with a coil. The machine further includes a multiphase series converter circuit physically connected to an end of the machine module to energize the coils for multiphase operation.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: January 8, 2019
    Assignee: ABB Schweiz AG
    Inventors: Ghanshyam Shrestha, Zhiguo Pan, Mario Schweizer, Darren Dale Tremelling, Waqas Mahmood Arshad
  • Patent number: 10158264
    Abstract: Each of claw-shaped magnetic poles is formed with an air gap expanding portion formed on at least a portion of both side portions in a circumferential direction, and an air gap is formed between the air gap expanding portion and tip portions of teeth that is larger than another air gap formed between radial end portions and the tip portions of the teeth. When a circumferential distance between the radial end portion and the tip portion is indicated by ?, and when the air gap is indicated by ?, 3????15? is satisfied. When a claw-tip end face width is indicated by L1, and when a claw-root end face width is indicated by L2, the claw-shaped magnetic pole is formed in a range of 0.20?L1/L2?0.71.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: December 18, 2018
    Assignee: DENSO CORPORATION
    Inventor: Takuya Kudou
  • Patent number: 10003224
    Abstract: A motor assembly for a washing machine including: a stator core having teeth formed along the outer peripheral surface; upper and lower insulators coupled to the upper and lower portions of the stator core to surround the top and underside of the stator core; a first fastening rib protruding from the inner peripheral surface of the lower insulator; a second fastening rib protruding from the inner peripheral surface of the upper insulator to be coupled on the underside thereof to the top of the first fastening rib; and a round-shaped third fastening rib having the underside coupled to the top of the second fastening rib and the top protruding from the top of the upper insulator to be coupled to the underside of a housing in which various parts such as a brake drum and the like are mounted.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: June 19, 2018
    Assignee: NEW MOTECH CO., LTD.
    Inventors: Jeong Cheol Jang, Ji Min Lee, Gyeong Sik Yang
  • Patent number: 9887595
    Abstract: It is designed for traction motors in motor-in-wheels, fans, and direct driving electric machines. The inner stator (1) consists of pole elements (13) comprising external periphery (14), core (15), part of yoke (16), externally wound bobbin (3). The pole elements (13) on inner aluminum housing (4) are stationary fit. In housing (4) on bearings in end bells outer rotor (8) carrying motor-in-wheel (6) or another operating mechanism is sustained. The inner housing (4) is a carrier of the electrical machine and the operating mechanism, laterally closing side plate-carrier of electronic control device.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: February 6, 2018
    Assignee: ALMOTT LTD.
    Inventor: Encho Nikolov Popov
  • Patent number: 9853373
    Abstract: A terminal block connection structure includes: a connector connected to intermediate parts of a plurality of power lines; a bus bar unit including a plurality of bus bars and at least one resin member; a terminal block being configured such that the distal ends of the plurality of power lines are connected to each other via the bus bar unit. The plurality of bus bars each includes a first plate portion fixed to the terminal block and a second plate portion bent from one end of the first plate portion. The connector is fitted to the resin member which is configured to prevent a movement of the connector in at least one direction out of moving directions of the connector.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: December 26, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yousuke Kurono, Yasuhiro Makido, Ryosuke Sasaki
  • Patent number: 9831749
    Abstract: A stator of a three-phase driving type rotary electric machine has phase coils wound around teeth of a stator core. In a specific slot among a plurality of slots of the stator core in which one phase coil directly connected to a power terminal and another phase coil directly connected to a neutral point are adjacently disposed, an inter-phase distance ensuring member is disposed in a gap via which the two phase coils are adjacent, and a temperature sensor is inserted into an insertion hole provided in the inter-phase distance ensuring member.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: November 28, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroshi Hoshina
  • Patent number: 9793773
    Abstract: One embodiment provides a stator of an electric rotary machine, including: a stator core having plural slots; a segmented coil of plural phases; and plural base plates laminated at each end of the stator core in an axial direction. While the stator core and plural coil bars of the segmented coil form a stator core assembly, and the plural base plates and plural end coil connections of the segmented coil form plural base plate assemblies. The stator is configured by the stator core assembly and the plural base plate assemblies laminated at each end of the stator core assembly.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: October 17, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Tomotaka Iki
  • Patent number: 9774226
    Abstract: An apparatus includes a first component and a second component. The second component is located at a first position. The second component includes a first connection to the first component. The first position and the first connection are configured to stiffen an electric motor assembly.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: September 26, 2017
    Assignee: Seagate Technology LLC
    Inventors: Timothy E. Langlais, Matthew M. McConnell, Paco G. Flores
  • Patent number: 9722468
    Abstract: A rotating electromechanical machine has a rotor having at least one current-carrying winding and at least one rotor-mounted sensor configured to sense a machine property or parameter during machine operation. Rotor-mounted circuitry dynamically modifies at least one property of the current-carrying winding during machine operation in response to the sensed machine property or parameter.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: August 1, 2017
    Inventors: Roderick A. Hyde, Jordin T. Kare, Lowell L. Wood, Jr.
  • Patent number: 9685834
    Abstract: In a motor, a connection portion between a lead wire and an aluminum wire is provided distant from a terminal block, with a leading end of a winding residing on one of cores that is not adjacent to a core that is at a position where the terminal block is provided.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: June 20, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hironori Yabuuchi, Shinji Kobayashi
  • Patent number: 9671010
    Abstract: A hybrid drive assembly for a motor vehicle, with a main transmission (4) and an electric machine (10) arranged in a hybrid module (6). The electric machine has a rotor (14) that rotates within a rotational space (38). The hybrid module (6) and the main transmission (4) share a common oil system, whose oil temperature is measured. A device (62, 64) is provided which, if a limit value of the oil temperature is exceeded, controls the oil level (58) in the oil sump in the rotation space (38) of the electric machine (10) in such a manner that the rotor (14) becomes immersed in the oil, within the oil sump (58), and can take up oil and throw the oil off again off onto components of the electric machine (10) located within the rotational space.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: June 6, 2017
    Assignee: ZF Friedrichshafen AG
    Inventor: Rayk Gersten
  • Patent number: 9634585
    Abstract: A method of controlling torque ripple in an electrical machine that includes a field winding for creating nominally constant field current using DC current and an armature winding for creating a rotating magnetic field using AC current, calls for superimposing a spatially varying current component on to the DC current of the field winding. Other methods are also disclosed that are suitable for electrical machines that have a winding that is excited with nominal DC current including SRMs, FSMs, and wound-field synchronous motors.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: April 25, 2017
    Assignee: General Electric Company
    Inventor: David Allan Torrey
  • Patent number: 9580160
    Abstract: A ship drive system includes a first and one second drive shaft for driving a respective propulsion unit, wherein each of the electric drive shafts includes at least one speed-variable generator driven by an internal combustion engine for generating a motor voltage having a variable amplitude and variable frequency, and at least one speed-variable drive motor that is supplied with the voltage and coupled to the propulsion unit. The first and second drive shafts can be switched from a first operating state, in which they are electrically disconnected from each other, to a second operating state, in which they are electrically coupled to each other such energy can be transmitted from the at least one generator of the one drive shaft to the at least one drive motor of the other drive shaft. To this end, the at least one generator includes a superconductor winding.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: February 28, 2017
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Rainer Hartig, Kay Tigges, Michael Wycisk
  • Patent number: 9559559
    Abstract: A stator adapted to be used in a transverse flux electrical machine (TFEM) includes a plurality of phases comprising respective halves sized and designed to receive therein a plurality of cores about a rotational axis. The halves can be separated in angular portions sized and designed to be assembled together and further locate cores therein in respective predetermined positions. A TFEM phase assembly and a kit of phases components sized and designed to assemble a stator are also encompassed by the present application.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: January 31, 2017
    Assignee: EOCYCLE TECHNOLOGIES INC.
    Inventors: Raphael Nadeau, Daniel Massicotte, Eric Adams, Simon Cote, Patrice Fortin, Jean-Francois Bernier-Synnott
  • Patent number: 9551348
    Abstract: A slim-type fan structure includes a stator (1) and a fan blade (2). The stator includes a circuit board (11) and a plurality of layout circuits (12) disposed to circumference the circuit board (11). The stator (1) includes an axial center (10) at a center portion thereof. The fan blade (2) includes a blade wheel (20), an axial sleeve (21) at a center of the blade wheel (20) and extended axially therefrom, a plurality of blades (22) formed to circumference an outer of the blade wheel (20), and a magnetic unit (23) disposed on the blade wheel (20). Also, the axial sleeve (21) is pivotally attached to the axial center (10). Accordingly, the magnetic unit (23) is formed by a plurality of N and S pole areas (230), (231) arranged alternatively in circular rows and corresponding to the layout circuits (12) along a vertical direction for the slim design.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: January 24, 2017
    Assignee: COOLER MASTER CO., LTD.
    Inventors: Fu-Lung Lin, Shih-Wei Huang, Shui-Fa Tsai