公开(公告)号：US20190281733A1

公开(公告)日：2019-09-12

申请号：US16292778

申请日：2019-03-05

Applicant: DENSO CORPORATION

Inventor： Masashi MATSUHARA ,  Nobuo ISOGAI

IPC: H05K7/20 ,  H02K11/33 ,  H02K9/06 ,  H02K5/14 ,  H02K1/16 ,  H02K1/28 ,  H02K7/00

Abstract: A rotating electric machine includes a rotating shaft with a rotation axis, a rotor, a stator, a housing, a plurality of control modules and a cover. The housing rotatably supports the rotating shaft and accommodates the rotor and the stator. The housing has a shaft-supporting part that supports an end portion of the rotating shaft. The control modules are arranged outside the shaft-supporting part of the housing and around the rotating shaft. The control modules each include a plurality of switching elements and a heat sink provided only on the rotation axis side of the switching elements. The cover, which covers the control modules, has a bottom part arranged on an opposite side of the control modules to the shaft-supporting part of the housing. End surfaces of the heat sinks of the control modules are formed to extend along an inner wall surface of the bottom part of the cover.