公开(公告)号：US20230216378A1

公开(公告)日：2023-07-06

申请号：US18009134

申请日：2021-02-05

Applicant: HITACHI ASTEMO, LTD.

Inventor： Zhi JING ,  Satoshi YAMAMURA ,  Kenichi NAKAYAMA ,  Tomohiro ADACHI ,  Shinji YAMAZAKI ,  Hiromitsu OKAMOTO ,  Yuuki TAKAHASHI

IPC: H02K9/19 ,  H02K1/16

CPC classification number: H02K9/19 ,  H02K1/165

Abstract: To suppress non-uniformness in an adhesion range of a refrigerant to a coil end. A rotating electric machine includes a rotor, a stator, and a case. The case forms outflow holes 122A and 122B through which the refrigerant flows out toward an extra-slot conductor 139 of a stator coil. In a state in which a case 110 is installed such that a rotation center axis Ca is horizontal, the outflow holes 122A and 122B are arranged above the extra-slot conductor 139, and when the bending direction of the extra-slot conductor with respect to an intra-slot conductor arranged on the outermost diameter side in a slot in the stator coil on an upper portion of the stator is a coil bending direction Da, the first outflow hole 122A is arranged on the bending direction Da side with respect to a vertical line VL passing through the rotation center axis Ca, and the second outflow hole 122B is arranged on a side opposite to the bending direction Da with respect to the vertical line VL, and the arrangement angle θb of the second outflow hole 122B with reference to the vertical line VL is larger than the arrangement angle θa of the first outflow hole 122A with reference to the vertical line VL.