Invention Grant
- Patent Title: Rotary electric machine
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Application No.: US16734450Application Date: 2020-01-06
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Publication No.: US11277046B2Publication Date: 2022-03-15
- Inventor: Masashi Matsumoto , Hazuki Kawamura , Kohei Watanabe , Yuki Tanaka , Haruki Kusamaki
- Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Applicant Address: JP Toyota
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee Address: JP Toyota
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JPJP2019-008677 20190122
- Main IPC: H02K3/22
- 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.
Public/Granted literature
- US11309760B2 Rotary electric machine Public/Granted day:2022-04-19
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