公开(公告)号：US12126230B2

公开(公告)日：2024-10-22

申请号：US18038149

申请日：2021-11-15

申请人： Siemens Aktiengesellschaft

发明人： Carsten Schuh ,  Thomas Soller ,  Rolf Vollmer

IPC分类号： H02K15/12 ,  B22F3/10 ,  B22F10/10 ,  B33Y10/00 ,  B33Y80/00 ,  H02K1/276 ,  H02K1/28 ,  H02K15/03

CPC分类号： H02K15/12 ,  B22F3/1021 ,  B22F10/10 ,  B33Y10/00 ,  B33Y80/00 ,  H02K1/276 ,  H02K1/28 ,  H02K15/03 ,  B22F2301/35

摘要： In a method for producing a material layer with a recess, a first suspension containing a binder is applied through a first opening in a first template and a second suspension containing a binder and solid particles is applied through a second opening in a second template. The first opening in the first template is completely contained within the second opening in the second template such that the second suspension completely surrounds the first suspension to produce a green body. The green body containing the first and second suspensions is sintered such that the first suspension is evaporated to provide the recess and permanent cohesion of the solid particles in the second suspension is achieved.

公开(公告)号：US12126221B2

公开(公告)日：2024-10-22

申请号：US17547930

申请日：2021-12-10

申请人： DENSO CORPORATION

发明人： Kenji Kani ,  Kenta Gotou

IPC分类号： H02K1/28 ,  H02K1/2783 ,  H02K21/14

CPC分类号： H02K1/2783 ,  H02K1/28 ,  H02K21/14

摘要： A rotor includes a rotating shaft, a core and a Halbach array magnet. The Halbach array magnet has first magnet portions each having its magnetization direction oriented along a radial direction and second magnet portions each having its magnetization direction oriented along a circumferential direction. The first magnet portions and the second magnet portions are alternately arranged in the circumferential direction. The core has a shaft-fixed portion, a yoke portion and a plurality of connection portions. The connection portions are arranged in the circumferential direction with gaps formed therebetween. On an inner circumferential surface of the yoke portion, there are formed additional-function portions to extend radially inward from the inner circumferential surface of the yoke portion. Each of the additional-function portions is located radially inside a corresponding one of the second magnet portions and has an additional function in addition to a function of forming the magnetic path.

公开(公告)号：US12113412B2

公开(公告)日：2024-10-08

申请号：US17322685

申请日：2021-05-17

申请人： The Regents of the University of California

发明人： Stefano Foresti ,  Christopher Chalabi ,  Johnathan Deas ,  Sonia Desaidamle ,  Samuel Gottesfeld ,  Blair Macleod ,  Christopher Reps ,  Michiro Robinson

IPC分类号： H02K21/16 ,  H02K1/28 ,  H02K7/116 ,  H02K16/00

CPC分类号： H02K21/16 ,  H02K1/28 ,  H02K7/116 ,  H02K16/00 ,  H02K2213/03

摘要： An electric motor with multiple electric gears to achieve an effect equivalent to mechanical gears in transmissions, enabling more efficient use of electricity at a wider range of speeds and torques is described. The Gears for Electric Motor (GEM) comprises a multi-phase motor having a concentric set of dedicated rotors to specific ranges of revolutions per minute (RPMs), and corresponding stators. The rotors and stators may be fitted within each other or positioned approximately parallel to each other along the longitudinal axis of the motor shaft. A controller determines which rotors are activated based on desired efficiency, torque and speed. Alternately, or in addition, magnets and coil pairs are constructed with varying properties to make more efficient use of electricity at a wider range of speeds and torques.

公开(公告)号：US20240283312A1

公开(公告)日：2024-08-22

申请号：US18653208

申请日：2024-05-02

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Yongwoo NAM ,  Deokjin KIM ,  Jinwoo CHO ,  Ukho SEO ,  Jaewoong JUNG

IPC分类号： H02K1/28 ,  B29C45/14 ,  B29K105/20 ,  B29L31/00 ,  D06F23/06 ,  D06F37/30 ,  H02K1/2791 ,  H02K15/12 ,  H02K21/22

CPC分类号： H02K1/28 ,  B29C45/14467 ,  D06F23/06 ,  D06F37/304 ,  H02K1/2791 ,  H02K15/12 ,  H02K21/22 ,  B29C2045/1454 ,  B29K2105/20 ,  B29K2105/203 ,  B29L2031/7498

摘要： An embodiment of the present invention relates to a motor assembly in which a rotor comprises: a rotor frame including a bottom surface having a rotating shaft at the center thereof and a side wall extending from the circumference of the bottom surface to surround the rotor in a circumferential direction; a plurality of cores disposed at the side wall along the circumferential direction; a plurality of permanent magnets disposed at the side wall along the circumferential direction and disposed between the plurality of cores, respectively; and an outer ring disposed at an outer surface, which is the opposite to the center of the rotor frame, along the circumferential direction, of the side wall, wherein the outer ring may be disposed apart from the plurality of cores and have the side wall therebetween. Various other embodiments may also be possible.

公开(公告)号：US12062945B2

公开(公告)日：2024-08-13

申请号：US17336215

申请日：2021-06-01

申请人： Wisk Aero LLC

发明人： Geoffrey Alan Long

IPC分类号： H02K1/28 ,  H02K1/2796 ,  H02K15/03 ,  H02K16/02

CPC分类号： H02K1/28 ,  H02K1/2796 ,  H02K15/03 ,  H02K16/02

摘要： Techniques described here provide a rotor and a method of making a rotor. In an embodiment, a method of making a rotor includes forming a magnet array by assembling a plurality of magnets into the magnet array, providing pre-preg adjacent to the magnet array, co-curing the magnet array with the pre-preg, and magnetizing the magnet array subsequent to the formation of the magnet array.

公开(公告)号：US12057741B2

公开(公告)日：2024-08-06

申请号：US17608761

申请日：2020-04-16

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Naoto Miyawaki ,  Takeru Maekawa ,  Yasushi Kamada

IPC分类号： H02K1/28 ,  H02K1/278

CPC分类号： H02K1/28 ,  H02K1/278

摘要： A rotor includes: a shaft; a rotor back yoke having a through hole defined in an axial center through which the shaft is inserted, the rotor back yoke being integrally and rotatably connected to the shaft; and magnets fixed to an outer peripheral surface of the rotor back yoke, the plurality of magnets being disposed with magnetic poles of different polarities being arranged alternately along a circumferential direction. The rotor back yoke includes a plurality of first cutout portions provided at predetermined intervals in the circumferential direction and extending from an inner peripheral surface of the rotor back yoke outward in a radial direction. Each of the plurality of first cutout portions extends along an axial direction, from one end surface to the other end surface of the rotor back yoke.

公开(公告)号：US12051946B2

公开(公告)日：2024-07-30

申请号：US17427088

申请日：2019-11-01

申请人： NIDEC SANKYO CORPORATION

发明人： Masahiro Kosuge ,  Masato Gomyo ,  Kazuma Yamamoto

IPC分类号： H02K1/28 ,  H02K1/2733 ,  H02K15/03 ,  H02K21/16

CPC分类号： H02K1/28 ,  H02K1/2733 ,  H02K15/03 ,  H02K21/16

摘要： In a rotor of a motor or the like, in order to suppress scattering of a part of a magnet provided around a rotating shaft, the rotor has a cylindrical magnet through which the rotating shaft passes, a first holder which covers the magnet from one side in an axial direction of the rotating shaft and a second holder which covers the magnet from the other side in the axial direction. The magnet is press-fitted into a first body portion of the first holder and a second body portion of the second holder, and a first end of the first body portion and a second end of the second body portion are joined by welding or the like. An inner diameter of the first end and the inner diameter of the second end are larger than an outer diameter of the magnet.

公开(公告)号：US20240204597A1

公开(公告)日：2024-06-20

申请号：US18098499

申请日：2023-01-18

申请人： BorgWarner Inc.

发明人： Jan Schmolke ,  Dietmar Metz ,  Frank Haase

IPC分类号： H02K1/28 ,  F04D19/00 ,  F04D25/06 ,  H02K1/2796 ,  H02K21/24

CPC分类号： H02K1/28 ,  F04D19/002 ,  F04D25/06 ,  H02K1/2796 ,  H02K21/24

摘要： The present disclosure relates to a rotor 10 for an axial flux motor 1. The rotor 10 comprises a rotor wheel 100, a plurality of permanent magnets 50 and a holding structure 60. The rotor wheel 100 comprises disk-shaped main body 110 and a plurality of arms 120. The disk-shaped main body 110 defines an inner circumference 111 and an outer circumference 114. The plurality of arms 120 protrude from the outer circumference 114 radially outwards to a respective arm tip 123. The plurality of arms 120 is circumferentially distributed on the outer circumference 114. The plurality of permanent magnets 50 is distributed circumferentially about the outer circumference 114 and arranged circumferentially between the plurality of arms 120. The holding structure 60 is attached to the rotor wheel 100 and to the plurality of permanent magnets 50 to hold the plurality of permanent magnets 50 in position.

公开(公告)号：US20240146132A1

公开(公告)日：2024-05-02

申请号：US17987186

申请日：2022-11-15

申请人： GM Global Technology Operations LLC

发明人： Jian Yao ,  Chengwu Duan ,  Vincent Fedida

IPC分类号： H02K1/28 ,  B60L50/10 ,  H02K1/2786

CPC分类号： H02K1/28 ,  B60L50/10 ,  H02K1/2786

摘要： A rotor segment support member includes an annular body having an outer edge, an inner edge defining an opening, a first surface, and a second surface opposite the first surface. The rotor segment support member has a circumferential axis extending about the annular body and a radial axis extending between the outer edge and a center of the opening through the inner edge. The annular body has a non-uniform cross-section extending along one of the circumferential axis and the radial axis.

公开(公告)号：US20240146131A1

公开(公告)日：2024-05-02

申请号：US17977068

申请日：2022-10-31

申请人： GM Global Technology Operations LLC

发明人： Anthony Michael Coppola ,  Derek Frei Lahr ,  Alireza Fatemi ,  Alan G. Holmes ,  Michael B. Viola ,  Bradley Allen Newcomb

IPC分类号： H02K1/28 ,  H02K1/04

CPC分类号： H02K1/28 ,  H02K1/04

摘要： A rotor for an electric machine includes a magnetic core configured for arrangement on a shaft. An end ring is arranged on opposite axial ends of the magnetic core. A composite sleeve includes an annular body including an inner surface and an outer surface, and a polymer matrix encapsulating circumferentially oriented fibers. The composite sleeve includes a first tapered portion on the inner surface arranged adjacent to an axial end thereof and configured to facilitate press-fitting of the composite sleeve onto the rotor.