Invention Grant
US08247941B2 Brushless motor with skew angle set for low torque ripple and high output
有权
无扭矩电机，扭矩角度设定为低扭矩波动和高输出
- Patent Title: Brushless motor with skew angle set for low torque ripple and high output
- Patent Title (中): 无扭矩电机，扭矩角度设定为低扭矩波动和高输出
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Application No.: US12811852Application Date: 2009-01-30
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Publication No.: US08247941B2Publication Date: 2012-08-21
- Inventor: Masayuki Okubo
- Applicant: Masayuki Okubo
- Applicant Address: JP Gunma
- Assignee: Mitsuba Corporation
- Current Assignee: Mitsuba Corporation
- Current Assignee Address: JP Gunma
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2008-027429 20080207
- International Application: PCT/JP2009/051545 WO 20090130
- International Announcement: WO2009/099004 WO 20090813
- Main IPC: H02K21/12
- IPC: H02K21/12
Abstract:
A brushless motor has a 2P3S×n structure, in which a ratio (W) of a circumferential width (Wm) of each of magnets to a length (Wp) of a chord formed between endpoints of an arc with a center angle θp=360°/pole-number 3n, the arc being included in an inner-diameter circle C2 of each of the magnets, is in a range of 0.76
Public/Granted literature
- US20100283348A1 BRUSHLESS MOTOR Public/Granted day:2010-11-11
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