Invention Grant
- Patent Title: Motor, motor state detection device, and motor state determination device
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Application No.: US17437165Application Date: 2020-03-10
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Publication No.: US12101013B2Publication Date: 2024-09-24
- Inventor: Yuma Ohno , Toshihiro Tamitsuji , Yuya Hisatomi
- Applicant: MINEBEA MITSUMI Inc.
- Applicant Address: JP Nagano
- Assignee: MINEBEA MITSUMI Inc.
- Current Assignee: MINEBEA MITSUMI Inc.
- Current Assignee Address: JP Nagano
- Agency: Pearne & Gordon LLP
- Priority: JP 19048311 2019.03.15 JP 19048312 2019.03.15 JP 19224278 2019.12.12
- International Application: PCT/JP2020/010194 2020.03.10
- International Announcement: WO2020/189398A 2020.09.24
- Date entered country: 2021-09-08
- Main IPC: H02K5/173
- IPC: H02K5/173 ; F16C19/52 ; H02K7/08 ; H02K11/30

Abstract:
A motor includes a rotor having a rotation shaft, a stator arranged oppositely in a circumferential direction of the rotor, and a pair of bearing portions rotatably supporting the rotation shaft, the pair of bearing portions each include a first bearing being rotatable together with the rotation shaft and a second bearing being rotatable together with the first bearing, the first bearing rotates together with the rotation shaft when the first bearing is normal, and the second bearing as well as the first bearing rotates together with the rotation shaft when the first bearing is abnormal.
Public/Granted literature
- US20220170507A1 MOTOR, MOTOR STATE DETECTION DEVICE, AND MOTOR STATE DETERMINATION DEVICE Public/Granted day:2022-06-02
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