公开(公告)号：US20200212731A1

公开(公告)日：2020-07-02

申请号：US16711558

申请日：2019-12-12

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Masashi Matsumoto ,  Haruki Kusamaki ,  Hazuki Kawamura ,  Kohei Watanabe ,  Yuki Tanaka

IPC: H02K1/14 ,  H02K1/27 ,  H02K1/20 ,  H02K1/16 ,  H02K9/19 ,  H02K1/18

Abstract: A stator includes a stator core having an annular shape, the stator core being wound with a coil. The stator core includes a plurality of magnetic plates and a porous body intervening between the plurality of magnetic plates, the plurality of magnetic plates and the porous body being layered.

公开(公告)号：US11309760B2

公开(公告)日：2022-04-19

申请号：US16734450

申请日：2020-01-06

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Masashi Matsumoto ,  Hazuki Kawamura ,  Kohei Watanabe ,  Yuki Tanaka ,  Haruki Kusamaki

IPC: H02K3/22 ,  H02K3/24 ,  H02K1/32 ,  H02K3/48 ,  H02K3/34 ,  H02K1/20

Abstract: A rotary electric machine includes a stator core having a plurality of teeth arranged in a row along a circumferential direction of the stator core, and a stator coil composed of a winding wire wound around the teeth. The stator coil includes coil end portions extending, outside the stator core in an axial direction thereof, along a substantially circumferential direction of the stator core, and straight portions extending along the axial direction, the straight portions being at least partially housed in a slot which is a void defined by two adjacent teeth of the plurality of teeth. In the rotary electric machine, a cooling groove is formed at least in the straight portion, the cooling groove functioning as a cooling channel through which a cooling fluid flows, and each straight portion includes only one cooling channel.

公开(公告)号：US11277046B2

公开(公告)日：2022-03-15

申请号：US16734450

申请日：2020-01-06

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Masashi Matsumoto ,  Hazuki Kawamura ,  Kohei Watanabe ,  Yuki Tanaka ,  Haruki Kusamaki

IPC: H02K3/22 ,  H02K3/24 ,  H02K1/32 ,  H02K3/48 ,  H02K3/34 ,  H02K1/20

Abstract: A rotary electric machine includes a stator core having a plurality of teeth arranged in a row along a circumferential direction of the stator core, and a stator coil composed of a winding wire wound around the teeth. The stator coil includes coil end portions extending, outside the stator core in an axial direction thereof, along a substantially circumferential direction of the stator core, and straight portions extending along the axial direction, the straight portions being at least partially housed in a slot which is a void defined by two adjacent teeth of the plurality of teeth. In the rotary electric machine, a cooling groove is formed at least in the straight portion, the cooling groove functioning as a cooling channel through which a cooling fluid flows, and each straight portion includes only one cooling channel.