Invention Grant
- Patent Title: Motor and brushless wiper motor
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Application No.: US17292456Application Date: 2019-10-01
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Publication No.: US11374512B2Publication Date: 2022-06-28
- Inventor: Ryo Ohori , Naoki Shioda
- Applicant: MITSUBA Corporation
- Applicant Address: JP Gunma
- Assignee: MITSUBA Corporation
- Current Assignee: MITSUBA Corporation
- Current Assignee Address: JP Gunma
- Agency: JCIPRNET
- Priority: JPJP2018-212818 20181113
- International Application: PCT/JP2019/038746 WO 20191001
- International Announcement: WO2020/100457 WO 20200522
- Main IPC: H02P6/10
- IPC: H02P6/10 ; B60S1/08

Abstract:
A motor includes: a stator having an annular stator core and multiple teeth protruding radially inwards from the stator core; a coil wound around the teeth; a shaft rotating around the rotation axis radially inside of the stator core; a rotor core fixed to the shaft; magnets positioned on the outer peripheral surface of the rotor core; a salient pole positioned between magnets adjacent to each other in the circumferential direction; an applying portion applying a voltage to the coil; and an applying control portion controlling the applying portion. The ratio of the number of magnetic poles of the magnets and the number of teeth is 2:3. The voltage is a rectangular wave, and its application is started when the tip of the salient pole does not face an opening in the teeth.
Public/Granted literature
- US20210328528A1 MOTOR AND BRUSHLESS WIPER MOTOR Public/Granted day:2021-10-21
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