公开(公告)号：US10291104B2

公开(公告)日：2019-05-14

申请号：US14718546

申请日：2015-05-21

Applicant: Mitsubishi Electric Corporation

Inventor： Tadashi Murakami ,  Yukitaka Sakata ,  Yoshiaki Kitta ,  Katsunari Takagi ,  Koichi Ojima ,  Masaya Inoue

IPC: H02K5/20 ,  H02K9/19 ,  H02K9/193

Abstract: An electric rotating machine that can raise the utilization efficiency of cooling oil is obtained. In an rotation axle, there are provided an oil flow path having a predetermined length from an end of the rotation axle and a flow path hole that communicates with the oil flow path and has an opening toward the inside of the electric rotating machine; a supporting member includes a cylinder section and a disk section that partitions the cylinder section in the axis direction, and a discharging hole is provided at an end of the cylinder section; between the flow path hole and the discharging hole, there is provided a partition plate that encloses a space formed by the supporting member and the rotation axle and guides cooling oil traveling from the flow path hole to the inside of the electric rotating machine to the discharging hole.

公开(公告)号：US10103602B2

公开(公告)日：2018-10-16

申请号：US15041180

申请日：2016-02-11

Applicant: Mitsubishi Electric Corporation

Inventor： Yoshiaki Kitta ,  Manabu Yoshinori ,  Tadashi Murakami ,  Yukitaka Sakata ,  Katsunari Takagi ,  Koichi Ojima ,  Masaya Inoue

IPC: H02K9/19 ,  H02K3/32 ,  H02K3/28 ,  H02K5/10 ,  H02K5/20 ,  H02K3/24

Abstract: Provided is an electric motor capable of cooling a stator without being increased in size with a small number of components and even with simple work. The electric motor includes ring-shaped sealing members (34) having flexibility and being arranged on an inner diameter side of a stator coil (22) so as to surround inner diameter portions of coil ends. Cooling oil flowing from an upper part of a housing into the housing flows downward through coil end oil paths (37, 38) formed by the sealing members (34), coil end covers (32, 33), and the coil ends.