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：US20230291281A1

公开(公告)日：2023-09-14

申请号：US17690071

申请日：2022-03-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Alireza FATEMI ,  Chih-Hung YEN ,  Farzad SAMIE ,  SeungHwan KEUM ,  Thomas W. NEHL ,  Xiaofeng YANG

IPC: H02K9/20 ,  H02K1/20 ,  H02K9/22

CPC classification number: H02K9/20 ,  H02K1/20 ,  H02K9/225

Abstract: A motor stator includes a stator core having a plurality of stator teeth on an inner diameter thereof and defining a respective plurality of slots between the plurality of stator teeth. A plurality of windings are disposed in the slots. A heat pipe network includes a plurality of evaporator portions including a hollow structure disposed in at least a portion of the plurality of slots and including an interior having a wick extending along the interior of the hollow structure. A condenser portion has an interior portion in communication with the plurality of evaporator portions and is located at an end of the stator core. The wick of each of the plurality of evaporator portions extend into the condenser portion.