公开(公告)号：US20210288569A1

公开(公告)日：2021-09-16

申请号：US17081390

申请日：2020-10-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jian YAO ,  Chengwu DUAN ,  Yusheng ZOU ,  Alireza FATEMI

IPC: H02K21/24 ,  H02K1/14 ,  H02K1/27

Abstract: An axial flux motor includes: a stator having a first side and a second side opposite the first side, the stator including: N stator core components on the first side, where N is an integer greater than two; and pole shoes attached to radial sides of the N stator core components, N slot openings between adjacent ones of the pole shoes, where each of the N slot openings extends in at least one direction non-radially on the first side; and a rotor including a third side and M permanent magnets on the third side, where the first side is parallel to the third side, and where M is an integer greater than two.

公开(公告)号：US20230268788A1

公开(公告)日：2023-08-24

申请号：US17684589

申请日：2022-03-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhen GAO ,  Yusheng ZOU ,  Jian YAO

IPC: H02K3/24 ,  H02K3/26 ,  H02K9/193 ,  H02K21/24

CPC classification number: H02K3/24 ,  H02K3/26 ,  H02K9/193 ,  H02K21/24 ,  B33Y80/00

Abstract: An axial flux motor includes: a stator having a first side and a second side opposite the first side, the stator including: N stator core components on the first side, where N is an integer greater than two; N stator windings that are disposed around the N stator core components, respectively, where each of the N stator windings includes, from a point of view facing the first side: a first width at a first location; and a second width that is greater than the first width at a second location that is radially outward from the first location relative to an axis; slot openings disposed between adjacent ones of the stator windings; and a rotor including a third side and M permanent magnets on the third side, where the first side is parallel to the third side, and where M is an integer greater than or equal to two.

公开(公告)号：US20230080123A1

公开(公告)日：2023-03-16

申请号：US17549324

申请日：2021-12-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yusheng ZOU ,  Lei HAO ,  Chengwu DUAN ,  Jian YAO ,  Chandra S. NAMUDURI

IPC: H02M3/158 ,  H02J7/00 ,  B60L58/18

Abstract: A power control system includes a battery system and a DC-DC converter with first, second, third, and fourth power switches. A second terminal of the first power switch is connected to a first terminal of the second power switch. A second terminal of the third power switch is connected to a first terminal of the fourth power switch. A first inductor includes a first terminal connected to the second terminal of the first power switch and the first terminal of the second power switch and a second terminal connected to the second terminal of the third power switch and the first terminal of the fourth power switch. A first bypass switch is connected in parallel to the first power switch. A second bypass switch is connected in parallel to the third power switch.

公开(公告)号：US20230318369A1

公开(公告)日：2023-10-05

申请号：US17744865

申请日：2022-05-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： SeungHwan KEUM ,  Jian YAO ,  Yusheng ZOU

IPC: H02K1/20 ,  H02K16/02 ,  H02K5/20 ,  H02K1/2798 ,  H02K21/24

CPC classification number: H02K1/20 ,  H02K16/02 ,  H02K21/24 ,  H02K1/2798 ,  H02K5/20

Abstract: An axial flux electric machine includes a casing, stator cores, windings, and fins. The casing has a hollow cylindrical shape with an inner radial surface and an outer radial surface. The stator cores are spaced circumferentially along the inner radial surface of the casing. The windings are wrapped around the stator cores. The fins project from the inner radial surface of the casing to spaces between the windings.

公开(公告)号：US20210152041A1

公开(公告)日：2021-05-20

申请号：US16785121

申请日：2020-02-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chengwu DUAN ,  Jian YAO ,  Yusheng ZOU

IPC: H02K1/27

Abstract: The present disclosure relates generally to rotors for electric motor assemblies and methods of making the same, and more specifically, to variable thickness rotors for axial flux motors. More specifically, annular-shaped rotors having interiorly disposed magnets for axial flux motors are provided in certain aspects. The variable thickness rotors may each include an annular-shaped body having a first thickness at a first radial position and a second thickness at a second radial position. The first radial position may be spaced apart from the second radial position. The first thickness may be greater than or equal to about 200% of the second thickness.

公开(公告)号：US20210152040A1

公开(公告)日：2021-05-20

申请号：US16785106

申请日：2020-02-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jian YAO ,  Mingyuan ZHANG ,  Chengwu DUAN ,  Yusheng ZOU

IPC: H02K1/27 ,  H02K1/14 ,  H02K3/52 ,  H02K1/02

Abstract: 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.