Invention Grant
- Patent Title: Motor rotor, motor, and vehicle
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Application No.: US17645152Application Date: 2021-12-20
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Publication No.: US11863029B2Publication Date: 2024-01-02
- Inventor: Zhiqi Wei , Chao Cao , Lang Lv , Wenwu Ma , Ke Wang
- Applicant: Huawei Digital Power Technologies Co., Ltd.
- Applicant Address: CN Shenzhen
- Assignee: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.
- Current Assignee: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.
- Current Assignee Address: CN Guangdong
- Agency: WOMBLE BOND DICKINSON (US) LLP
- Priority: CN 2011566748.X 2020.12.25
- Main IPC: H02K11/40
- IPC: H02K11/40 ; H02K5/15 ; H02K5/173 ; H02K7/00

Abstract:
Embodiments of this application provide a motor rotor, a motor, and a vehicle. A conductive pillar passes through an inner ring of a conductive bearing, an outer wall of the conductive pillar interference fits with the inner ring of the conductive bearing, and an end of the conductive pillar is grounded. In this way, it is ensured that a shaft current on a rotor body is discharged by using the conductive bearing and the conductive pillar, to prevent a main bearing of the motor rotor from being electrically corroded by the shaft current. In addition, the conductive bearing is sleeved on the grounded conductive pillar, so that the inner ring of the conductive bearing can interference fit with the outer wall of the conductive pillar.
Public/Granted literature
- US20220216772A1 MOTOR ROTOR, MOTOR, AND VEHICLE Public/Granted day:2022-07-07
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