Invention Grant
- Patent Title: Motor and brushless wiper motor
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Application No.: US17041429Application Date: 2019-03-22
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Publication No.: US11496031B2Publication Date: 2022-11-08
- Inventor: Ryo Ohori
- Applicant: MITSUBA Corporation
- Applicant Address: JP Gunma
- Assignee: MITSUBA Corporation
- Current Assignee: MITSUBA Corporation
- Current Assignee Address: JP Gunma
- Agency: JCIPRNET
- Priority: JPJP2018-076679 20180412
- International Application: PCT/JP2019/012074 WO 20190322
- International Announcement: WO2019/198464 WO 20191017
- Main IPC: H02K1/278
- IPC: H02K1/278 ; H02K21/16 ; B60S1/08 ; H02K7/116 ; H02K29/03

Abstract:
The motor is provided with: a rotor core; permanent magnets disposed on the outer circumferential surface of the rotor core and magnetized in parallel orientation; and a salient pole saliently formed between the permanent magnets. The ratio of the number of magnetic poles of the permanent magnets to the number of teeth is 2:3. Sloped surfaces are formed on the side surfaces of the permanent magnets in the circumferential direction. The angle θ2 between lines L3 and lines L2 is an electrical angle of 13° or more, said lines L3 connecting outer circumferential corner portions where the sloped surfaces and the outer circumferential surface are connected to each other and the shaft center, said lines L2 connecting the radial direction outermost side of the circumferential side surface of the salient pole and the shaft center.
Public/Granted literature
- US20210021183A1 MOTOR AND BRUSHLESS WIPER MOTOR Public/Granted day:2021-01-21
Information query
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