公开(公告)号：US20240372425A1

公开(公告)日：2024-11-07

申请号：US18310780

申请日：2023-05-02

Applicant: GM Global Technology Operations LLC

Inventor： Alireza Fatemi ,  Thomas W Nehl ,  Anil K Sachdev ,  Anthony Michael Coppola ,  Gokhan Cakal

IPC: H02K3/02

Abstract: An electric machine includes a stator, a rotor configured to rotate relative to the stator, an air gap between the stator and the rotor, and a conductive winding disposed in the rotor or the stator. The conductive winding includes a first portion having a first conductivity and a second portion having a second conductivity, the second portion disposed radially between the first portion and the air gap, the first conductivity being different than the second conductivity.

公开(公告)号：US20240348113A1

公开(公告)日：2024-10-17

申请号：US18300841

申请日：2023-04-14

Applicant: GM Global Technology Operations LLC

Inventor： Alireza Fatemi ,  Farzad Samie ,  Thomas W. Nehl ,  Chandra S. Namuduri ,  Gokhan Cakal

IPC: H02K1/20 ,  H02K1/16

CPC classification number: H02K1/20 ,  H02K1/165

Abstract: An electric propulsion motor system includes a cylindrical stator and rotor, a fluid circulation system providing pressurized fluid, and conductors within winding slots. The stator has a yoke and a plurality of teeth extending radially inward from the yoke, with winding slots defined between adjacent teeth. Respective tooth tips extend circumferentially into adjacent winding slots and are radially adjacent to a first conductor within the winding slot, with a first channel through which pressurized fluid flows.