公开(公告)号：US20230369938A1

公开(公告)日：2023-11-16

申请号：US18197136

申请日：2023-05-15

Applicant: AEROLAS GMBH AEROSTATISCHE LAGER - LASERTECHNIK

Inventor： Michael Muth

IPC: H02K7/08 ,  H02K7/14 ,  H02K1/278

CPC classification number: H02K7/08 ,  H02K1/278 ,  H02K7/14 ,  H02K2201/03

Abstract: An electric motor or driven machine including a structure; a stator device fixed at the structure; a rotor device including an outer circumference; and a rotor shaft coupled or couplable to the rotor device for torque transmission and supported rotatable about an axis of rotation and substantially axially fixed in or on the structure, wherein the rotor device is axially supported proximal to its outer circumference in an axis-parallel direction by an aerostatic bearing including a stator-side bearing surface formed on the stator device and a rotor-side bearing surface formed on the rotor device and a bearing gap formed between the stator side bearing surface and the rotor side bearing surface, wherein the rotor device is formed by a rotor disc, wherein circumferentially spaced and radially extending permanent magnets of an electromagnetic operating device are provided at the rotor disk, radially inside from the aerostatic bearing.

公开(公告)号：US11817753B2

公开(公告)日：2023-11-14

申请号：US17628264

申请日：2020-07-08

Applicant: FISHER & PAYKEL APPLIANCES LIMITED

Inventor： Matheus Alexandre Bevilaqua ,  James Elliott Cameron ,  Hai Lan

IPC: H02K21/02 ,  H02K1/17 ,  H02K1/2753 ,  H02K7/14 ,  H02K21/16

CPC classification number: H02K21/025 ,  H02K1/17 ,  H02K1/2753 ,  H02K7/14 ,  H02K21/16 ,  H02K2201/03

Abstract: An electric motor having low vibration and/or noise comprises a rotor or stator comprising permanent magnets each comprising at least two pole pairs, with an internal flux gap within the permanent magnets between adjacent internal pole pairs. The internal flux gap between the internal pole pairs may be similar to an external pole to pole physical spacing between adjacent poles of adjacent magnets. The motor is suitable for use in for example a laundry washing machine or dryer or washer-dryer.

公开(公告)号：US20230353029A1

公开(公告)日：2023-11-02

申请号：US18300113

申请日：2023-04-13

Applicant: Beijing Yewei Technology Co., Ltd.

Inventor： Peisheng Zhang ,  Lei Xu

IPC: H02K55/00 ,  H02K1/27 ,  H02K1/04

CPC classification number: H02K55/00 ,  H02K1/27 ,  H02K1/04 ,  H02K2201/03 ,  H02K2201/15

Abstract: An assemblable modular and disc coreless permanent magnet superconducting ultra-efficient motor comprises a junction box, a housing, bearings, a rotating shaft, rotors, a stator, and air gaps; the housing comprises a left and a right end cover, the rotors comprise a left and right rotor; both left and right rotor comprise 2N pairs of left or right rotor poles and rotor yokes; the stator comprises a stator armature disc and stator windings, the bearings comprise a left and right bearing, and the air gaps comprise a left and right air gap. The rotor's magnetic field is replaced by high-temperature resistant rare earth high-intensity permanent magnets, and the rotor's electrically excited magnetic field is replaced by permanent magnets, eliminating rotor's copper and iron losses. The winding superconducting wires eliminate stator's copper loss, and stator iron core removal eliminates stator's iron and magnetic saturation loss, improving the efficiency and torque output.

公开(公告)号：US20230353016A1

公开(公告)日：2023-11-02

申请号：US17794950

申请日：2020-03-26

Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.

Inventor： Takashi SATO ,  Naomichi SHIBATA

IPC: H02K7/18

CPC classification number: H02K7/1823 ,  H02K2201/03

Abstract: This rotary machine is provided with: a rotor shaft; a compressor connected to the rotor shaft; a rotor connected to the rotor shaft on the upstream side, from the compressor, of the air-flow flowing to the compressor; a stator disposed so as to have a space from the outer circumferential part of the rotor; and a cover that covers the upstream side of the air-flow in the space between the stator and the rotor and that has an opening formed so as to connect the space with the upstream side, from the space, of the air-flow.

公开(公告)号：US20230352995A1

公开(公告)日：2023-11-02

申请号：US18219455

申请日：2023-07-07

Applicant: INFINITUM ELECTRIC, INC. ,  UNIVERSITY OF MARYLAND, COLLEGE PARK

Inventor： Raphael Kahat Mandel ,  Paulo Guedes-Pinto ,  Amir Shooshtari ,  Randal A. Lee

IPC: H02K1/20 ,  H02K11/00 ,  H02K1/16 ,  H02K1/276 ,  H02K1/32 ,  H02K9/06

CPC classification number: H02K1/20 ,  H02K1/165 ,  H02K1/276 ,  H02K1/32 ,  H02K9/06 ,  H02K11/0094 ,  H02K2201/03 ,  H02K2213/03

Abstract: An axial field rotary energy device can include a housing and a rotor rotatably coupled to the housing. The rotor can have an axis of rotation and magnets. A stator assembly can be coupled to the housing coaxial with and adjacent to the rotor. The stator assembly can include a printed circuit board (PCB) having electrically conductive coils and an internal air duct for cooling the stator assembly.

公开(公告)号：US11735967B2

公开(公告)日：2023-08-22

申请号：US16622975

申请日：2018-06-12

Applicant: MOTEURS LEROY-SOMER

Inventor： Dominique Jourdan

IPC: H02K1/27 ,  H02K1/2781 ,  H02K1/14

CPC classification number: H02K1/2781 ,  H02K1/146 ,  H02K2201/03 ,  H02K2213/03

Abstract: A rotary electric machine having a stator, and a rotor having a shaft and permanent magnets on the surface of the shaft, the permanent magnets having a face of concave overall shape directed toward the stator.

公开(公告)号：US20230231453A1

公开(公告)日：2023-07-20

申请号：US17802668

申请日：2022-02-23

Applicant: ZHEJIANG GEELY HOLDING GROUP CO., LTD ,  WUXI INFIMOTION TECHNOLOGY CO. , LTD

Inventor： Shengchuan ZHANG ,  Xuebo XIONG ,  Liang FANG ,  Tao HAN ,  Haisheng YU ,  Yanjun TAN ,  Xiaozhe LIN ,  Ruiping WANG ,  Ingo SCHOLTEN

IPC: H02K16/02 ,  H02K5/15 ,  H02K1/24 ,  H02K1/12 ,  H02K1/2733

CPC classification number: H02K16/02 ,  H02K5/15 ,  H02K1/24 ,  H02K1/12 ,  H02K1/2733 ,  H02K2201/03

Abstract: A salient pole type hybrid excitation motor, belonging to the field of motors, and including a rotor assembly, where the rotor assembly includes: an electromagnetic rotor with radial salient poles and constructed in an annular shape and sleeving a magnetic yoke; a permanent magnet rotor installed on one side of the electromagnetic rotor; and axial salient pole blocks installed on one side of the permanent magnet rotor away from the electromagnetic rotor and arranged alternately with the radial salient poles, a plurality of axial salient pole blocks being matched with a plurality of radial salient poles of the electromagnetic rotor, and a polarity of the axial salient pole blocks being opposite to that of permanent magnet steels corresponding to the radial salient poles of the electromagnetic rotor. Electric excitation and permanent magnet excitation are combined to adjust an air gap magnetic field of a motor.

公开(公告)号：US20230208216A1

公开(公告)日：2023-06-29

申请号：US17560404

申请日：2021-12-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mohammad F. Momen ,  Edward L. Kaiser

IPC: H02K1/16 ,  H02K1/276 ,  H02K7/00 ,  H02K21/14 ,  B60K1/00

CPC classification number: H02K1/165 ,  H02K1/276 ,  H02K7/006 ,  H02K21/14 ,  B60K1/00 ,  H02K2201/03

Abstract: Presented are electric machines with optimized stator tooth geometries and multi-gauge stator conductors, methods for making/using such electric machines, and motor vehicles equipped with such electric machines. An electric machine includes a housing, a rotor assembly rotatably attached to the housing, and a stator assembly coaxial with and separated by an airgap from the rotor assembly. The rotor assembly includes one or more magnets mounted to a rotor core. The stator assembly includes a stator core with multiple axially elongated, circumferentially spaced stator slots, multiple radially aligned stator teeth interleaved between and separating the slots, and multiple electromagnetic windings wound through the slots. Each stator tooth has an elongated tooth body with a tooth head at a radial end of a tooth root, which attaches to a cylindrical hub of the stator core. The tooth head has an axial cross-section with a trapezoidal crown integral with a rectangular tip.

公开(公告)号：US11682932B2

公开(公告)日：2023-06-20

申请号：US17125117

申请日：2020-12-17

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Leyi Zhu ,  Chun Tang ,  Franco Leonardi ,  Michael W. Degner

IPC: H02K1/14 ,  H02K1/274 ,  H01F1/12 ,  H01F7/02 ,  B33Y80/00

CPC classification number: H02K1/146 ,  H01F1/12 ,  H01F7/02 ,  H02K1/274 ,  B33Y80/00 ,  H02K2201/03

Abstract: An electric machine stator includes a soft magnetic yoke having a cylindrical yoke body extending along a central axis, with an outer surface and an inner periphery defining a central opening about the central axis, and a plurality of soft magnetic stator teeth. Each stator tooth defines a first set of air pockets, and a second set of air pockets. An electric machine rotor and permanent magnet material with air pockets are also provided.

公开(公告)号：US20230187988A1

公开(公告)日：2023-06-15

申请号：US18066859

申请日：2022-12-15

Applicant: KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATION

Inventor： Hideki HISADA ,  Masaru KANO ,  Hiroaki MAKINO ,  Yoshiyuki IWATA

IPC: H02K1/276

CPC classification number: H02K1/2766 ,  H02K2201/03

Abstract: According to one embodiment, a rotor includes a rotor core which includes magnetic poles, magnet holding slots for each of the magnetic poles, and permanent magnets arranged in the magnet holding slots, respectively. The magnet holding slot includes a magnet loading area, a magnetic cavity, and an opening which opens to the magnetic cavity and an outer circumference of the rotor core. The rotor core includes a protruding portion having an outer surface which extends to the opening continuously with the outer circumferential surface of the rotor core, an end surface which intersects the outer surface at angle 90±10° to face the opening, and an inner surface which intersects the end surface to form an edge of the magnetic cavity.