Windings And Core Structure Patents (Class 310/179)
  • Patent number: 12132351
    Abstract: A stator punching piece, a motor, a compressor and a household appliance are provided. The stator punching piece has a rotor hole, a yoke and multiple stator teeth. The yoke is provided on an outer circumference of the stator punching piece. The teeth are provided at intervals along an inner circumference of the yoke. Each stator tooth has a tooth body and a tooth shoe. One end of the tooth body is connected with the yoke and the other end of the tooth body is connected with the tooth shoe. A side of the tooth shoe facing the rotor hole is provided with an adjusting groove, and a centerline of the tooth body divides the stator teeth into a first area and a second area.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: October 29, 2024
    Assignee: ANHUI MEIZHI PRECISION MANUFACTURING CO., LTD.
    Inventors: Famin Liu, Lan Yu, Xiaohua Qiu, Hui Chen
  • Patent number: 12132369
    Abstract: An electric machine includes a stator core and a multi-phase winding. The stator core includes a plurality of teeth defining a number of slots in the stator core. The multi-phase winding is positioned on the stator core and defines a number of poles, a plurality of parallel paths per phase, and a number of pole-turns for each parallel path. The number of pole-turns for each parallel path divided by the number of poles is a mixed number.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: October 29, 2024
    Assignee: BorgWarner Inc.
    Inventor: Kirk Neet
  • Patent number: 12107442
    Abstract: Disclosed is a coil including a first conductor disposed on a first plane, a second conductor disposed on a second plane different from the first plane, and including a first end electrically connected to a first end of the first conductor, and a second end positioned near a second end of the first conductor, and a third conductor disposed on the first plane, and including a first end electrically connected to the second end of the second conductor, and a second end positioned near the first end of the second conductor, wherein a pattern of the first conductor connecting the first end of the first conductor from the second end of the first conductor is in a clockwise or counterclockwise direction when the first plane is viewed from a first side, and wherein a pattern of the third conductor connecting the second end of the third conductor from the first end of the third conductor is in a direction opposite to the direction of the pattern of the first conductor when the first plane is viewed from the first side
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: October 1, 2024
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jaehyun Park, Beomwoo Gu, Jaeseok Park, Sungku Yeo, Youngho Ryu, Bohwan Choi
  • Patent number: 12101008
    Abstract: A winding for a stator comprises (i) a plurality of first end turns provided on a first end of the stator core, (ii) straight portions extending through the slots, and (iii) a plurality of second turns provided on a second end of the stator core. The straight portions are arranged in layers in the slots in a number of layers. Each of the second end turns connects straight portions in two consecutive layers of two slots and is defined by a first common twist associated with one of the two consecutive layers and a second common twist associated with another of the two consecutive layers. The first common twist and the second common twist are identical for the second end turns in a first half of consecutive layers, and the first common twist and the second common twist are different for the second end turns in a second half of consecutive layers.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: September 24, 2024
    Assignee: BorgWarner Inc.
    Inventors: Kirk Neet, Tim Sailors
  • Patent number: 12074490
    Abstract: A motor apparatus including a stator having a plurality of teeth formed in a circumference thereof, a rotor rotatably installed in the stator, and having a plurality of magnets disposed in a circumference thereof, and a 3-phase coil part having a plurality of coils wound around the teeth, respectively, in which the coils having a preset phase difference are arranged in parallel.
    Type: Grant
    Filed: May 2, 2022
    Date of Patent: August 27, 2024
    Assignee: Hyundai Mobis Co., Ltd.
    Inventor: Jae Woo Jung
  • Patent number: 12068651
    Abstract: Disclosed are a winding structure for an electric motor and an electric motor. The electric motor comprises an iron core (1) and a multi-phase winding structure (2), wherein the iron core (1) is provided with a plurality of grooves (11) arranged in the circumferential direction, and one side of the iron core (1) is an inserting side, and the other side is a welding side; the multi-phase winding structure (2) is arranged in the plurality of grooves (11) of the iron core (1), each phase of the winding structure (2) comprises N parallel winding sub-windings formed by a plurality of hairpin conductors of different shapes, and N is a positive even number; and the conductors, forming each phase of the winding structure (2), of the same sub-winding are located on a non-adjacent conductor layer corresponding to the grooves (11).
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: August 20, 2024
    Assignee: SAIC MOTOR CORPORATION LIMITED
    Inventors: Jun Zhu, Jian Wang, ShaoRui Huang, JieBao Li, Wei He, YaRu Qu
  • Patent number: 12062958
    Abstract: In this armature, facing surfaces which are portions where a first segment conductor and a second segment conductor are joined together are disposed so as to overlap each other as viewed in a radial direction, and an end part of at least one of the first segment conductor and the second segment conductor is provided with chamfered parts at edge parts on both circumferential sides of the end part.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: August 13, 2024
    Assignee: AISIN CORPORATION
    Inventors: Kiyotaka Koga, Tomotsugu Sugihara, Takahiro Kobuchi
  • Patent number: 12034347
    Abstract: The present invention may provide a motor including a shaft, a rotor coupled to the shaft, a stator disposed to correspond to the rotor, and a busbar disposed above the stator, wherein the stator includes a stator core and coils, the busbar includes a busbar body and a plurality of terminals disposed on the busbar body, the terminals include terminal bodies, first protrusions extending from end portions of the terminal bodies and connected to end portions of the coils, and second protrusions branched off from the first protrusions and connected to power terminals, and the plurality of second protrusions are disposed at the same position in radial and vertical directions of the busbar and disposed at equal intervals in a circumferential direction of the busbar.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: July 9, 2024
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Young Hwan Jung
  • Patent number: 12015314
    Abstract: A method for continuous operation of a rotating machine, the method is performed in a rotating machine having an inner stator and an outer stator.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: June 18, 2024
    Assignee: ABB Schweiz AG
    Inventors: Minos Beniakar, Luca Peretti
  • Patent number: 12009718
    Abstract: An armature includes an armature coil including a plurality of coil modules and a base member including a cylindrical back core. Each of the coil modules includes a corresponding partial winding of the armature coil and a back-yoke-side insulating wall formed on the back yoke side of the corresponding partial winding. The coil modules are arranged, on a radially inner side or a radially outer side of the base member, in alignment with each other in a circumferential direction. The base member has a plurality of first engaging portions formed therein and each of the coil modules has at least one second engaging portion formed in the back-yoke-side insulating wall thereof. The coil modules are fixed to the base member with each of the first engaging portions of the base member engaging with a corresponding one of the second engaging portions of the coil modules in the circumferential direction.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: June 11, 2024
    Assignee: DENSO CORPORATION
    Inventors: Akito Tamura, Yuki Takahashi, Kazuya Iwase
  • Patent number: 11996744
    Abstract: A stator structure of a vehicle motor includes a stator core assembly and a plurality of coil assemblies composed of flat wires. The stator core assembly includes an annular portion and a plurality of tooth portions. The tooth portions extend from the annular portion in a radial direction toward a center of the stator core assembly. Each coil assembly is configured around a corresponding tooth portion. Each coil assembly includes a first flat wire and a plurality of second flat wires that are electrically connected in parallel. The first flat wire is radially stacked and wound around the corresponding tooth portion. The second flat wires are arranged radially adjacent to the first flat wire and are electrically connected in series to the first flat wire. The second flat wires are alternately stacked and radially wound around the corresponding tooth portion.
    Type: Grant
    Filed: December 2, 2021
    Date of Patent: May 28, 2024
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Hong-Cheng Sheu, Hsin-Yi Huang, Kuei-Yuan Huang
  • Patent number: 11990804
    Abstract: A rotating electric machine includes a field system having a magnet section and an armature having a multi-phase armature coil. The magnet section has easy axes of magnetization oriented to be more parallel to a d-axis at locations closer to the d-axis than at locations closer to a q-axis. The magnet section has an intrinsic coercive force higher than or equal to 400 [kA/m] and a residual flux density higher than or equal to 1.0 [T]. There are no inter-conductor members provided between electrical conductor sections of the armature coil. The armature coil includes a plurality of phase windings each of which is constituted of a plurality of partial windings. Each of the partial windings is formed of an electrical conductor that is multiply wound in the electrical conductor sections of the same phase. In each of the phase windings, the partial windings are connected in parallel with each other.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: May 21, 2024
    Assignee: DENSO CORPORATION
    Inventors: Akito Tamura, Yuki Takahashi, Atsushi Umeda
  • Patent number: 11962207
    Abstract: An apparatus for manufacturing a stator for an electric aircraft motor, wherein the apparatus includes at least a manufacturing device. The manufacturing device further includes at least a work-holding device configured to hold a first segment of teeth. The manufacturing device further includes at least a winding device configured to create a modular winding set in the first segment of teeth, wherein creating a modular winding set further include acquiring a continuous conductor and winding a continuous conducting coil upon each tooth of the plurality of teeth using the continuous conductor. The manufacturing device further includes at least an installation device configured to install a plurality of segment of teeth into the stator.
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: April 16, 2024
    Assignee: BETA AIR, LLC
    Inventors: Fabian Baumann, Brandon White, Raffaello Verna
  • Patent number: 11955860
    Abstract: The present invention may provide a motor including a shaft, a rotor coupled to the shaft, a stator disposed outside the rotor, and a bus bar disposed on the stator, wherein the bus bar includes a terminal connected to a coil of the stator, the terminal includes a first terminal and a second terminal which are separated from each other in a circuit manner, the first terminal includes a first neutral terminal and a plurality of first phase terminals, the second terminal includes a second neutral terminal and a plurality of second phase terminals, first curvature centers of the plurality of first phase terminals are disposed to be different, second curvature centers of the plurality of second phase terminals are disposed to be different, a position of a curvature center of the first neutral terminal is the same as a position of a curvature center of the second neutral terminal.
    Type: Grant
    Filed: April 25, 2023
    Date of Patent: April 9, 2024
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Woong Seon Ryu
  • Patent number: 11949285
    Abstract: An electric machine for a vehicle includes: a stator body, the stator body having, in an alternating manner, stator teeth and stator grooves with conductor elements which are arranged therein, and a yoke section with a radially extending yoke height on the stator body radially outside the stator grooves and the stator teeth, the stator body having a stator outer radius. A ratio of the yoke height in relation to the stator outer radius is between 0.20 and 0.28.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: April 2, 2024
    Assignee: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT
    Inventors: David Bauer, Josef Dubsky, Tobias Engelhardt
  • Patent number: 11942846
    Abstract: Various disclosed embodiments include illustrative stator winding interface devices, electric motors, and methods of manufacturing an electric motor. In an illustrative embodiment, a stator winding interface device includes phase plates, a neutral plate, and a structure configured to maintain the phase plates and the neutral plate in a rigid orientation.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: March 26, 2024
    Assignee: Rivian IP Holdings, LLC
    Inventors: Dang Dang, Logan Balliett
  • Patent number: 11942841
    Abstract: According to one embodiment, a stator includes a stator core and coils having a rectangular cross-section. In one or more slots, a first rectangular conductor, which is positioned innermost in a radial direction and in which a pair of short sides in a cross section face in the radial direction, and a second rectangular conductor, which is positioned outer side of the radial direction than is the first rectangular conductor and in which a pair of long sides in the cross-section face in the radial direction, are disposed. The first rectangular conductor includes a bending part bent toward a circumferential direction. The second rectangular conductor includes a bending part bent toward the circumferential direction and a twisted part twisted about the circumferential direction.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: March 26, 2024
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Masaru Kano, Hidenori Uchida
  • Patent number: 11929653
    Abstract: According to one embodiment, in a stator, bridge parts of seventh coil segments extend in a direction departing from one end surface while being inclined at a predetermined inclination angle from an axial direction of a stator core to the outside of a radial direction. Regarding the bridge parts of the seventh coil segments adjacent to each other in the radial direction of the stator core, when the same cross-sections defined by the radial direction and the axial direction is viewed from a circumferential direction of the stator core, a first inclination angle of the bridge part positioned relatively in an inner side of the radial direction is smaller than a second inclination angle of the bridge part positioned relatively in an outer side of the radial direction.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: March 12, 2024
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATION
    Inventor: Hidenori Uchida
  • Patent number: 11916453
    Abstract: In a stator or a rotary electric machine, an insulating sheet spreads between two coils adjacent to each other in a circumferential direction in each slot. The insulating sheet covers the end in a third direction of the coil wound in a corresponding tooth, between end surfaces in an axial direction and between an inward-directed surface and an inclined surface in a radial direction. In the slot, an insulating sheet wrapping the adjacent coil is present, but the insulating sheet does not cover the end in a fourth direction of the coil wound around the corresponding tooth.
    Type: Grant
    Filed: May 6, 2022
    Date of Patent: February 27, 2024
    Assignee: ICHINOMIYA DENKI CO., LTD.
    Inventor: Yoshikazu Kinashi
  • Patent number: 11916438
    Abstract: A magnetization ring is disposed between a rotor and a core portion surrounding the rotor, the rotor having permanent magnets and inter-pole portions which are arranged in a circumferential direction about an axis. The magnetization ring has a magnetic portion facing the center of the permanent magnet in the circumferential direction, and a nonmagnetic portion facing the inter-pole portion of the rotor.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: February 27, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takanori Watanabe, Atsushi Matsuoka, Atsushi Ishikawa
  • Patent number: 11901795
    Abstract: A rotor assembly has a sleeve, a rotor hub, a lamination core, and a plurality of tapered magnets disposed circumferentially around an inner diameter of the sleeve. The plurality of tapered magnets are configured to abut on one another. The plurality of tapered magnets includes a first set of tapered magnets and a second set of tapered magnets. Insertion of the first set of tapered magnets axially relative to the second set of tapered magnets is configured to increase a diameter of the sleeve. The rotor hub is configured to retain at least one of the lamination core, the plurality of tapered magnets, or the sleeve.
    Type: Grant
    Filed: May 12, 2023
    Date of Patent: February 13, 2024
    Assignee: ARCHER AVIATION, INC.
    Inventors: Scott Graves, Diego Silva
  • Patent number: 11901783
    Abstract: In a method for producing a winding overhang assembly for an electrical rotating machine, an insulating main body is produced at least partly from a dielectric material. Each of a plurality of conductors of a metal material is connected to the insulating main body via an intermediate layer, which is produced from a material which is different from the dielectric material of the insulating main body and from the metal material of the conductors and which is produced from silver, aluminum, antimony, magnesium, tin, zinc, lead, tantalum or from a mixture and/or from at least one alloy thereof. The conductors are hereby sprayed onto the intermediate layer by a thermal spraying method.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: February 13, 2024
    Assignee: Innomotics GmbH
    Inventors: Karsten Brach, Jens Dahl Jensen, Horst Kümmlee, Hartmut Rauch, Olaf Rehme, Jakob Schneck, Frank Seibicke, Oliver Stier, Mark Tobias Zegenhagen
  • Patent number: 11888370
    Abstract: A stator includes a stator core having a plurality of slots in a circumferential direction about an axis and having an end surface in a direction of the axis, and a first coil and a second coil of different phases which are wound on the stator core in distributed winding. A winding factor is 1. Each of the first coil and the second coil has winding portions, the number of which corresponds to the number of poles. The winding portions include first and second winding portions adjacent to each other in the circumferential direction. The first and second winding portions are inserted into one slot of the plurality of slots and extend from the one slot to both sides in the circumferential direction on the end surface. The first and second coils are annularly disposed in different positions in a radial direction about the axis on the end surface.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: January 30, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Atsushi Matsuoka, Koji Yabe, Toshio Arai
  • Patent number: 11888348
    Abstract: Provided is a stator for an electrical machine including a plurality of segments, wherein in order to reduce torque harmonics and power harmonics due to the interposed circumferential gap between two circumferentially adjacent stator segments, at least one of the two end teeth of each stator segment includes a circumferential protrusion at the respective tooth radial end, the circumferential protrusion protruding from the respective side face towards the respective circumferential end.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: January 30, 2024
    Inventors: Ziad Azar, Richard Clark, Alexander Duke, Arwyn Thomas
  • Patent number: 11876403
    Abstract: An embodiment provides a stator comprising a stator core having a plurality of teeth and coils wound around the teeth, wherein the tooth includes a body around which the coil is wound and a shoe connected to the body, the shoe includes a plurality of grooves and a curvature center of the inner peripheral surface of the shoe is the same as the center of the stator core.
    Type: Grant
    Filed: March 13, 2023
    Date of Patent: January 16, 2024
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Jin Su Pyeon, Shung Hun Woo
  • Patent number: 11855563
    Abstract: Motor controllers and methods for controlling drive circuit bypass signals are provided. The motor controller includes a drive circuit configured to generate variable frequency power based on input power received from a power source, and a drive contactor coupled between an output of the drive circuit and the motor. The drive contactor is configured to couple the drive circuit to the motor when a drive enable signal is received from an external controller, and decouple a line power enable signal from a line contactor by the external controller based on a presence of the drive enable signal. The line contactor is configured to couple the motor directly to the power source when the line power enable signal is received by the line contactor.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: December 26, 2023
    Assignee: Regal Beloit America, Inc.
    Inventors: Luis D. Morales, Zachary Joseph Stauffer, Paul Bryan Snipes
  • Patent number: 11855500
    Abstract: When the number of teeth included in an in-phase teeth group is represented by T, a first half-slot adjacent to a k-th tooth is represented by A(k, 1), and a second half-slot adjacent to the k-th tooth is represented by A(k, 2), the number of turns of the coil arranged in A(1, 1) is the same as the number of turns of the coil arranged in A(T, 2), the number of turns of the coil arranged in A(1, 1) is different from the number of turns of the coil arranged in A(1, 2). The number of turns of the coil arranged in A(k, 2) is different from the number of turns of the coil arranged in A(k+1, 1), and the number of turns of the coils provided in the slot is twice the number of turns of the coil arranged in A(1, 1).
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: December 26, 2023
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Junka Otosaka, Eigo Totoki, Toshinori Tanaka
  • Patent number: 11831228
    Abstract: A rotating electrical machine includes a rotor and a magnet unit. The rotating electrical machine also includes a cylindrical stator and a housing. The stator is equipped with a stator winding made up of a plurality of phase windings. The stator is arranged coaxially with the rotor and faces the rotor. The housing has the rotor and the stator disposed therein. The rotor includes a cylindrical magnet retainer to which the magnet unit is secured and an intermediate portion which connects between a rotating shaft of the rotor and the magnet retainer and extends in a radial direction of the rotating shaft. A first region located radially inside an inner peripheral surface of a magnetic circuit component made up of the stator and the rotor is greater in volume than a second region between the inner peripheral surface of the magnetic circuit component and the housing in the radial direction.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: November 28, 2023
    Assignee: DENSO CORPORATION
    Inventors: Yuki Takahashi, Makoto Taniguchi
  • Patent number: 11831212
    Abstract: A stator includes a stator core and a coil wound around the stator core. The coil includes at least one first winding and at least one second winding connected to the first winding in series. The stator satisfies (C1/S1)>(C2/S2), where S1 is a total cross-sectional area on a first side of a coil-end part of the coil, S2 is a total cross-sectional area on a second side of the coil-end part, C1 is a total cross-sectional area of the first winding on the first side, and C2 is a total cross-sectional area of the first winding on the second side.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: November 28, 2023
    Assignee: Mitsubishi Electric Corporation
    Inventors: Emi Tsukamoto, Koji Yabe
  • Patent number: 11824413
    Abstract: A winding arrangement for a stator of an electric motor includes winding hairpins arranged to form one or more phases. The stator includes a plurality of motor teeth forming a plurality of slots each configured to accommodate multiple layers. A first set of winding hairpins spanning of M slots are coupled in series and coupled to a phase lead, and are arranged sequentially in a first azimuthal direction. A jumper is arranged in a layer and is coupled in series with the first set of winding hairpins. A second set of winding hairpins configured to span of M slots are coupled in series between the jumper and a neutral lead. The second set of winding hairpins are arranged sequentially in the opposite azimuthal direction, and along with the first set of winding hairpins and the jumper, form a continuous electrical path between the phase lead and the neutral lead.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: November 21, 2023
    Assignee: Rivian IP Holdings, LLC
    Inventors: Khwaja Rahman, Dang Dinh Dang
  • Patent number: 11811282
    Abstract: A coil device includes a first coil including a plate-shaped first coil body having a first and second end. The first coil body is spirally wound on a columnar portion along the extending direction of the columnar portion such that the second end is positioned on one side in the extending direction relative to the first end. The coil device further includes a second coil including a plate-shaped second coil body having a third end and a fourth end. The second coil body is spirally wound on the columnar portion along the extending direction such that the third end is positioned on the one side in the extending direction relative to the second end of the first coil, and the fourth end is positioned on the one side in the extending direction relative to the third end. The second coil is in electrically parallel connection with the first coil.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: November 7, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hajime Ukaji, Mitsuoki Hishida, Kiyomi Kawamura, Toshiyuki Tamamura
  • Patent number: 11784523
    Abstract: Disclosed are various embodiments for a motor/generator where the stator is a coil assembly and the rotor is a magnetic toroidal cylindrical tunnel or where the rotor is a coil assembly and the stator is a magnetic toroidal cylindrical tunnel, and where the magnetic toroidal cylindrical tunnel comprises magnets having a NNSS or SSNN pole configuration.
    Type: Grant
    Filed: February 3, 2022
    Date of Patent: October 10, 2023
    Assignee: Linear Labs, Inc.
    Inventor: Fred E. Hunstable
  • Patent number: 11777356
    Abstract: A rotating electric machine includes a stator and a rotor. The stator includes a stator core that has a plurality of slots that are arranged in a circumferential direction and a stator winding that has a plurality of phase coils that are wound in the slots. The rotor is arranged so as to oppose the stator in a radial direction and has a plurality of magnetic poles in the circumferential direction. In the rotating electric machine, each of the phase coils has a plurality of series-connection coil groups that each includes n unit coils that are arranged to be wound in the circumferential direction. In each of the series-connection coil groups, a first end thereof is connected to a phase terminal for a respective phase and a second end is connected to a neutral point, and the series-connection coil groups are connected in parallel.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: October 3, 2023
    Assignee: DENSO CORPORATION
    Inventors: Masahito Fujieda, Kenichirou Takagi, Toshiaki Uga, Yoshihisa Shuji, Hiroshi Endo
  • Patent number: 11770040
    Abstract: A stator for an electric machine includes a plurality of pins arranged on concentric circles at different distances to a stator center in slots, each concentric circle forming a layer, wherein six pins in different layers are serially connected to one another and form a winding. A first pin is located in a first slot in the 6n-1 layer, wherein n is an integer. A second pin is located in a second slot in the 6n layer, wherein the second slot has a first radial distance to the first slot in a first circumferential direction of the stator. A third pin is located in a third slot in the 6n-2 layer. A fourth pin is located in a fourth slot in the 6n-3 layer. A fifth pin is located in the first slot in the 6n-5 layer. A sixth pin is located in the second slot in the 6n-4 layer.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: September 26, 2023
    Assignee: VALEO SIEMENS EAUTOMOTIVE GERMANY GMBH
    Inventor: Boris Dotz
  • Patent number: 11756716
    Abstract: A magnetic field control system according to an embodiment of the present invention may comprise: a structure forming part for forming a three-dimensional structure having an inner space; a magnetic field generating part for generating a magnetic field, the magnetic field generating part being formed to extend from a predetermined position of the structure forming part and being disposed to face a target region defined in the inner space; and a power source part for supplying electric power to the magnetic field generating part.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: September 12, 2023
    Assignee: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION
    Inventors: Gunhee Jang, Jaekwang Nam, Wonseo Lee, Bongjun Jang
  • Patent number: 11757335
    Abstract: A stator includes a stator hub and a plurality of stator teeth extending from the stator hub that define a stator slot having a stator slot base. At least one winding is disposed in the stator slot and the stator also includes a back iron. The winding surrounds the back iron and is held apart from the stator slot base so that a fluid channel is defined between an inner winding portion of the at least one winding so fluid can be passed between the stator slot base and the inner winding portion to cool the inner winding portion.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: September 12, 2023
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Jagadeesh Kumar Tangudu, Aritra Sur
  • Patent number: 11735979
    Abstract: Disclosed are a motor rotor and a permanent magnet motor. The motor rotor includes: a rotating shaft; a magnetic layer fixedly sleeved on the rotating shaft; a first heat diffusion layer wrapped on an outer surface of the magnetic layer away from the rotating shaft for preventing a shielding layer from overheating locally; and the shielding layer wrapped on a surface of the first heat diffusion layer away from the magnetic layer. The first heat diffusion layer is provided between the shielding layer and the magnetic layer of the motor rotor, so that the first heat diffusion layer can prevent the shielding layer and the magnetic layer from overheating locally, and improve heat dissipation efficiency of the shielding layer.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: August 22, 2023
    Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    Inventors: Jinxin Jia, Xiaobo Zhang, Jianning Liu, Fang Zhang, Qiong Wei, Guanghai Li, Liming Peng, Bowen Xiong
  • Patent number: 11735970
    Abstract: A short-circuit generator is a generator in which stator slots provided with windings of a stator placed therein each have a depth in a radial direction perpendicular to a rotor central axis whose ratio divided by a width of the stator slot in a direction perpendicular both to the radial direction and a direction of the rotor central axis, is less than three. A rotor includes: a field winding placed in each of rotor slots; a metallic damper bar placed in each of the rotor slots on an outer periphery side of the field winding; and a metallic wedge placed in each of the rotor slots on an outer periphery side of the damper bar and connected to the damper bar. A damper-bar height that is a height of the damper bar is less than a wedge height that is a height of the wedge in the radial direction.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: August 22, 2023
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Haruyuki Kometani, Ryoji Miyatake, Naoyoshi Mori, Yuta Saito
  • Patent number: 11658536
    Abstract: A rotary electric machine includes a multi-phase winding including magnetic poles circumferentially arranged in a circumferential direction. The multi-phase winding includes crossover wires each connecting two same-phase single coils that provide same-phase magnetic poles of the magnetic poles. The crossover wire includes an inter-pole crossover wire and an end crossover wire. The inter-pole crossover wire extends between one end and another end of the multi-phase winding in an axial direction of the multi-phase winding. The inter-pole crossover wire extends through an inter-pole gap between two adjacent poles of the magnetic poles. The end crossover wire extends in the circumferential direction on the other end of the multi-phase winding.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: May 23, 2023
    Assignee: DENSO CORPORATION
    Inventors: Masayuki Echizen, Seigo Shinoda
  • Patent number: 11624425
    Abstract: A laundry treatment apparatus includes an outer tub to receive wash water, a driving motor having a stator fixed to the outer tub, and a rotor rotated relative to the stator, a washing shaft rotated together with the rotor, and a rotatable spin-drying shaft spaced apart from the rotor. The laundry treatment apparatus also includes an inner tub disposed in the outer tub, a pulsator provided in the inner tub at a lower portion thereof, and a clutch assembly. The inner tub is rotated together with the spin-drying shaft and the pulsator is rotated by the washing shaft. The clutch assembly selects one of a plurality of modes including i) at least one restriction mode of restricting the spin-drying shaft to the rotor or the outer tub and ii) a free mode of not restricting the spin-drying shaft to the rotor and the outer tub.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: April 11, 2023
    Assignee: LG Electronics Inc.
    Inventors: Dongcheol Kim, Youngjong Kim
  • Patent number: 11611257
    Abstract: A method is provided for producing a slot base insulation in a stator (210, 220), wherein the stator (210, 220) is part of an electrical machine and is constructed from a ferromagnetic material. The stator (210, 220) is provided with at least one slot (204) to fit a winding wire (122) in the at least one slot (204). The at least one slot (204) is coated with a soft-magnetic insulation material. A stator (210, 220) also is provided with the slot base insulation.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: March 21, 2023
    Assignee: Dr. Ing. h. c. F. Porsche AG
    Inventors: Stefan Goetz, Oliver Heil
  • Patent number: 11605989
    Abstract: A stator for an electric machine includes a stator core with a multi-phase winding arranged on the stator core. The stator core has a plurality of slots formed therein and defines a first axial end and a second axial end. The multi-phase winding includes multiple parallel paths for each winding phase, each parallel path completing multiple revolutions around the stator core, and each parallel path comprising a series of slot segments arranged in layers of the plurality of slots and end turns alternately connecting consecutive slot segments on the first axial end and the second axial end. A pitch of the end turns connecting the slot segments for at least one parallel path alternates between a first pitch on the first axial end and a second pitch on the second axial end, the second pitch being different from the first pitch.
    Type: Grant
    Filed: November 27, 2020
    Date of Patent: March 14, 2023
    Assignee: BorgWarner Inc.
    Inventor: Kirk Neet
  • Patent number: 11594926
    Abstract: A method of manufacturing a rotary electric machine armature that includes a cylindrical armature core in which a plurality of slots that extend in an axial direction are disposed in a circumferential direction and a coil wound around the armature core, the slots having respective radial openings that open in a radial direction, and the coil being formed by joining a plurality of segment conductors to each other.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: February 28, 2023
    Assignee: AISIN CORPORATION
    Inventors: Kiyotaka Koga, Tomotsugu Sugihara
  • Patent number: 11557930
    Abstract: A method of manufacturing a rotary electric machine armature that includes a cylindrical armature core in which a plurality of slots that extend in an axial direction are disposed in a circumferential direction and a coil wound around the armature core, the slots having respective radial openings that open in a radial direction, and the coil being formed by joining a plurality of segment conductors to each other.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: January 17, 2023
    Assignee: AISIN CORPORATION
    Inventors: Kiyotaka Koga, Tomotsugu Sugihara
  • Patent number: 11557941
    Abstract: An electronic motor with a stator core having a plurality of holes for receiving a plurality of conductors, each conductor comprising a substantially linear body portion extending within the holes of the stator core, and a stator drive member adjacent each end of the stator core, the stator end member adjacent at least one end of the stator core including electronic control circuitry electrically coupled to at least some of the conductors. Also, a method of manufacturing an electronic motor by providing a stator with a plurality of holes having conductors within at least some of the plurality of holes, said conductors each having a substantially linear body portion extending through the stator core, and placing a drive member on each end of the stator core, at least one of the drive members provided with electronic circuitry, where the conductors are electrically coupled to the circuitry in the drive member.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: January 17, 2023
    Inventor: Robert C. Hendricks
  • Patent number: 11545873
    Abstract: A rotary actuator for a shift-by-wire system of a vehicle includes a motor with a motor shaft, an output shaft disposed in parallel with the motor shaft, a speed-reducing mechanism configured to reduce a rotational speed of the motor and transmit the rotation of the motor to the output shaft, and a case housing the motor and the speed-reducing mechanism. The speed-reducing mechanism includes a first speed-reducing portion including a ring gear and a sun gear, and a second speed reducing portion including a drive gear and a driven gear. The drive gear and the driven gear are coaxially disposed with the motor shaft and the output shaft, respectively, to serve as parallel shafts type gears. The drive gear is disposed between the motor and the first speed-reducing portion in an axial direction of the motor.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: January 3, 2023
    Assignee: DENSO CORPORATION
    Inventors: Mikine Kume, Shinji Naito
  • Patent number: 11522397
    Abstract: The present disclosure provides a motor rotor and a permanent magnet motor. The motor rotor includes a rotor body. In a section perpendicular to a central axis of the rotor body, a first slot side has a first and a second endpoint, and a second slot side has a third and a fourth endpoint. A distance from a connecting line between the first endpoint and the third endpoint to a center of the rotor body is denoted by h1, a radius of the rotor body is denoted by R, and h1 and R satisfy 0.96?h1/R?0.99. A connecting line between the first endpoint and the center of the rotor body is a first connecting line, a connecting line between the third endpoint and the center of the rotor body is a second connecting line, and an included angle between the two connecting lines is denoted ? and satisfies: 3.7°???5.6°.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: December 6, 2022
    Assignees: Zhuhai Kaibang Motor Co., Ltd., Gree Electric Appliances, Inc. of Zhuhai
    Inventors: Na Liu, Chengbao Zhong, Feilong Chen, Fang Xie, Chuang Zhang, Wende Yang
  • Patent number: 11509180
    Abstract: In this stator, a first coil portion, a second coil portion, a third coil portion, and a fourth coil portion each include a one-side coil part that is disposed so as to extend over a first slot and a third slot, and an other-side coil part that is disposed so as to extend over a second slot and a fourth slot.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: November 22, 2022
    Assignee: AISIN CORPORATION
    Inventor: Kiyotaka Koga
  • Patent number: 11509181
    Abstract: This armature has a core leg portion fixing member that is provided in a slot so as to overlap with a part at a position different from a position in an axial direction corresponding to a joint portion, and that includes a first fixing layer for fixing an armature core and a leg portion.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: November 22, 2022
    Assignee: AISIN CORPORATION
    Inventor: Kiyotaka Koga
  • Patent number: 11502568
    Abstract: A stator for an electric alternating current machine includes a stator winding arranged about a central axis and including conductor windings. The conductor windings are grouped to form electrical phases. The stator winding has winding layers. The conductor windings of a phase each have axially oriented conductor limbs that are connected to one another in two axial end regions in pairs by two winding heads. Individual coils are thus formed for each phase. As viewed in a circumferential direction, the axial conductor limbs of the individual phases follow one another in alternation in a uniform order. The winding heads of a given individual coil extend within a winding layer. A sequence of the axial conductor limbs of the respective phases and the distribution of the individual coils on the individual winding layers are chosen to avoid crossovers within the individual winding layers in the region of the winding heads.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: November 15, 2022
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventors: Michael Frank, Jörn Grundmann, Markus Wilke