Invention Grant
- Patent Title: Ventilation structure for air cooling of electric motor
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Application No.: US17272450Application Date: 2018-09-07
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Publication No.: US11949317B2Publication Date: 2024-04-02
- Inventor: Yoshifumi Ajioka , Tetsuya Sakurada , Seiji Haga , Kazuki Iwasa
- Applicant: Mitsubishi Electric Corporation
- Applicant Address: JP Tokyo
- Assignee: MITSUBISHI ELECTRIC CORPORATION
- Current Assignee: MITSUBISHI ELECTRIC CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: BUCHANAN INGERSOLL & ROONEY PC
- International Application: PCT/JP2018/033194 2018.09.07
- International Announcement: WO2020/049715A 2020.03.12
- Date entered country: 2021-03-01
- Main IPC: H02K5/20
- IPC: H02K5/20 ; H02K9/06

Abstract:
A frame included in an electric motor has an inflow hole that allows outside air to flow in an interior of the electric motor and an outflow hole that allows the outside air having flowed in to flow out of the electric motor. The electric motor includes a first partition member forming a first ventilation path between the first partition member and the frame, and a second partition member forming a second ventilation path between the second partition member and the frame. In addition, the stator has a third ventilation path penetrating through the stator from one end to another end of the stator in a direction of a rotational axis and configured to communicate with the first ventilation path and the second ventilation path.
Public/Granted literature
- US20210320555A1 ELECTRIC MOTOR Public/Granted day:2021-10-14
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