公开(公告)号：US20230060012A1

公开(公告)日：2023-02-23

申请号：US17905933

申请日：2021-03-02

申请人： AMOTECH CO., LTD.

发明人： Byung Soo KIM

IPC分类号： H02K1/2713 ,  B60N2/02 ,  H02K1/16 ,  H02K7/06 ,  H02K1/14

摘要： An electric motor for reciprocating an object along a rod having a predetermined length is provided, comprising: a housing; a rotor unit that is mounted to the inside of the housing via a bearing to be rotatable and comprises a rotor shaft, which is axially-coupled to the rod to linearly reciprocate along the rod during rotation, and a plurality of magnets mounted along the circumference direction of the rotor shaft; and a stator unit comprising at least one stator core and a coil, the at least one stator core comprising a yoke portion of a closed loop shape that is built in the housing so as to surround the circumference of the rotor unit, and a plurality of slot portions extending from the yoke portion toward the rotor, and the coil being wound around at least one slot portion among the plurality of slot portions.

公开(公告)号：US11381123B2

公开(公告)日：2022-07-05

申请号：US16785106

申请日：2020-02-07

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Jian Yao ,  Mingyuan Zhang ,  Chengwu Duan ,  Yusheng Zou

IPC分类号： H02K1/27 ,  H02K1/02 ,  H02K3/52 ,  H02K1/2713 ,  H02K1/14 ,  H02K7/00

摘要： The present disclosure provides hybrid stator core components for an axial flux motor stator and methods for making the same. The hybrid stator core component includes a molded soft magnetic composite material and a laminated component. In one variation, a laminated insert comprising a plurality of insulated layers is non-releasably seated within a molded soft magnetic composite material. In another variation, a hybrid stator core component has a molded soft magnetic composite core and a laminated shell comprising a plurality of layers disposed around at least a portion of the molded soft magnetic composite core.

公开(公告)号：US11632024B2

公开(公告)日：2023-04-18

申请号：US16142007

申请日：2018-09-26

申请人： ROMAX TECHNOLOGY LIMITED

发明人： Petr Chmelicek ,  Ashish Goel ,  Marek Jacubaszek

IPC分类号： H02K15/03 ,  H02K1/27 ,  H02K1/2713 ,  H02K1/272 ,  H02K1/276

摘要： Construction of a permanent magnet rotor assembly having a plurality of magnetic poles and comprising a number of magnetic pole pieces arranged in circular array. Two sets of permanent magnets—one set magnetised in circumferential direction of the rotor and the second set providing flux in axial direction of rotor, generating a magnetic flux focused through the pole piece and interacting with the magnetic flux of the stator. End-plates made of magnetic material are present such there is an axial gap between the them and the array of magnetic pole pieces. Circumferentially magnetised magnets are placed in the circumferential gaps between the pole pieces, whereas the magnets providing flux in axial direction are placed in the gaps between the array of pole pieces and end-plates.

公开(公告)号：US11552514B2

公开(公告)日：2023-01-10

申请号：US17392052

申请日：2021-08-02

申请人： DENSO CORPORATION

发明人： Yoji Yamada ,  Koji Mikami ,  Akihisa Hattori ,  Seiya Yokoyama

IPC分类号： H02K1/27 ,  H02K1/276 ,  H02K1/278 ,  H02K1/2706 ,  H02K3/28 ,  H02K21/16 ,  H02P25/024 ,  H02K1/24 ,  H02K1/2713 ,  H02K1/272 ,  H02K1/14 ,  H02K1/18 ,  H02K15/14

摘要： A motor includes a stator having a winding, and a rotor. The rotor rotates by receiving a rotational magnetic field generated by drive current supplied to the winding. The winding includes a first winding and a second winding, the first and second windings both being excited at the same timing by the drive current. The first winding and the second winding are connected in series. The rotor includes a first pole section and a second pole section. The second pole section faces the second winding at the rotation position of the rotor at which the first pole section faces the first winding. The magnetic force exerted on the stator by the second pole section is weaker than that exerted by the first pole section.

公开(公告)号：US20220271639A1

公开(公告)日：2022-08-25

申请号：US17677984

申请日：2022-02-22

申请人： FEAAM GmbH

发明人： Gurakuq DAJAKU

IPC分类号： H02K21/04 ,  H02K1/2713

摘要： A claw pole rotor (10) for an electrical machine (11) is specified, the claw pole rotor (10) comprising a rotor yoke (12), and at least two first claw pole fingers (13) and at least two second claw pole fingers (14), wherein the first and second claw pole fingers (13, 14) each are connected with the rotor yoke (12), the first claw pole fingers (13) extend from a first side (15) of the claw pole rotor (10) towards a second side (16) of the claw pole rotor (10), the second claw pole fingers (14) extend from the second side (16) towards the first side (15), one first magnet (17) is in each case arranged at the first side (15) between the first claw pole fingers (13), and one second magnet (18) is in each case arranged at the second side (16) between the second claw pole fingers (14). Moreover, a rotor arrangement (23) for an electrical machine (11) is specified.

公开(公告)号：US12074489B2

公开(公告)日：2024-08-27

申请号：US17859483

申请日：2022-07-07

申请人： YAMAHA HATSUDOKI KABUSHIKI KAISHA

发明人： Takayuki Kobayashi ,  Hirotaka Kurita ,  Tatsuya Hagiwara ,  Takumi Sugimura

IPC分类号： H02K29/03 ,  H02K1/16 ,  H02K1/2713 ,  H02K3/12 ,  H02K3/34 ,  H02K21/24

CPC分类号： H02K29/03 ,  H02K1/16 ,  H02K1/2713 ,  H02K3/12 ,  H02K3/34 ,  H02K21/24

摘要： An axial gap motor having a rotor and a stator core. A plurality of pressed powder teeth extends in a radial direction of the stator core and each has a trapezoidal shape in which a circumferential length of a pressed-powder-tooth-radial-direction-outer-end portion is larger than a circumferential length of a pressed-powder-tooth-radial-direction-inner-end portion. The rotor includes a plurality of field magnets, each configured such that a circumferential length of a magnet-radial-direction-inner-end portion is greater than or equal to a circumferential length of a magnet-radial-direction-outer-end portion. When the rotor and the stator core rotate relative to each other about a rotation axis, a part of the field magnets first overlaps with pressed-powder-tooth-radial-direction-inner portions of pressed powder teeth, and while the field magnets are located at a q-axis position with respect to the pressed powder teeth, adjacent ones of the field magnets individually overlap with one pressed powder tooth.

公开(公告)号：US20240283305A1

公开(公告)日：2024-08-22

申请号：US18570207

申请日：2022-06-14

申请人： Moving Magnet Technologies

发明人： Lionel Billet

IPC分类号： H02K1/14 ,  H02K1/2713 ,  H02K7/116

CPC分类号： H02K1/146 ,  H02K1/2713 ,  H02K7/116

摘要： A three-phase electric motor, formed by a stator part excited by three electric windings and a rotor comprising a plurality of magnetized poles, the stator part having radially extending teeth, the stator part comprising: three consecutive wound teeth, each carrying a winding, in a first angular sector, and one to three non-wound complementary teeth, in a second angular sector complementary to the first angular sector.

公开(公告)号：US11942837B2

公开(公告)日：2024-03-26

申请号：US17158593

申请日：2021-01-26

申请人： Regal Beloit America, Inc.

发明人： Subhash Marutirao Brahmavar

IPC分类号： H02K15/03 ,  H01F13/00 ,  H02K1/16 ,  H02K1/2713 ,  H02K5/00 ,  H02K7/00

CPC分类号： H02K15/03 ,  H01F13/003 ,  H02K1/16 ,  H02K1/2713 ,  H02K7/003 ,  H02K5/00

摘要： In one aspect, axial flux rotor, for use in an axial flux motor prepared by a process, provided. The process includes the steps of stamping a plurality of laminations and overlying one of the external planar faces of one of the plurality of laminations over one of the external planar faces of another of the plurality of laminations. The process also includes the steps of providing a plurality of rotor poles, providing a plurality of magnetizable permanent magnets, and overmolding rotor poles with a moldable material.

公开(公告)号：US11362554B2

公开(公告)日：2022-06-14

申请号：US16438937

申请日：2019-06-12

申请人： Ford Global Technologies, LLC

发明人： Chuanbing Rong

IPC分类号： H02K1/27 ,  H02K1/276 ,  H02K21/14 ,  H02K1/2713 ,  H01F1/059 ,  H01F1/057

摘要： A rotor of an electric machine includes a rotor core with one or more permanent magnets having opposing ends. The rotor core defining a magnet channel extending axially between opposing ends of the rotor core. The permanent magnet is disposed in the channel and extends axially through the rotor core. The magnet includes a planar layer of magnetically hard-phase material that includes rare-earth metal and includes a planar layer of magnetically soft-phase material that does not include rare-earth metal. Both of the hard and soft layers extend between the opposing ends. The soft-phase material has a major face disposed against a major face of the hard phase material.

公开(公告)号：US12089800B2

公开(公告)日：2024-09-17

申请号：US17449763

申请日：2021-10-01

申请人： Samsung Electronics Co., Ltd.

发明人： Masayuki Takada ,  Minoru Yoshida ,  Takashi Kosaka ,  Yuuki Nakabayashi

IPC分类号： H02K1/27 ,  A47L9/22 ,  H02K1/02 ,  H02K1/16 ,  H02K1/2713 ,  H02K3/48 ,  H02K5/16 ,  H02K7/00 ,  H02K7/14

CPC分类号： A47L9/22 ,  H02K1/02 ,  H02K1/165 ,  H02K1/2713 ,  H02K3/48 ,  H02K5/161 ,  H02K7/003 ,  H02K7/14

摘要： The present disclosure relates to a flux switching motor capable of realizing all a high output, a miniaturization, and an extremely light weight. In the flux switching motor, a stator is provided such that a length thereof in an axial direction in which a rotating shaft extends is shorter than a length of each magnet in the axial direction, and a rotor is provided such that a length thereof in the axial direction is less than or equal to the length of the stator in the axial direction.