Invention Grant
- Patent Title: Motor
- Patent Title (中): 发动机
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Application No.: US12893071Application Date: 2010-09-29
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Publication No.: US08405342B2Publication Date: 2013-03-26
- Inventor: Yoji Yamada , Shinji Santo , Seiya Yokoyama , Yoko Tateishi , Yoshiaki Takemoto , Shigemasa Kato
- Applicant: Yoji Yamada , Shinji Santo , Seiya Yokoyama , Yoko Tateishi , Yoshiaki Takemoto , Shigemasa Kato
- Applicant Address: JP Shizuoka-ken
- Assignee: Asmo Co., Ltd.
- Current Assignee: Asmo Co., Ltd.
- Current Assignee Address: JP Shizuoka-ken
- Agency: Marsh Fischmann & Breyfogle LLP
- Priority: JP2009-230612 20091002; JP2009-268967 20091126
- Main IPC: H02P1/46
- IPC: H02P1/46

Abstract:
A motor including a stator, a rotor, and a current supply unit. The stator includes a stator core, which has a plurality of teeth, and a plurality of coils, which are wound around the teeth. The rotor includes a plurality of magnets, which function as first magnetic poles, and salient poles, which function as second magnetic poles. Each of the salient poles is arranged between adjacent magnets spaced apart by a clearance from the magnets. When P represents the number of poles in the rotor and S represents the number of coils, a ratio P/S of the pole number P and the coil number S is represented by (4n−2)/3m (where n and m are integers that are greater than or equal to 2). The plurality of coils includes a plurality of coil groups including coils for three phases. The current supply unit executes a different current control for each coil groups.
Public/Granted literature
- US20110181230A1 MOTOR Public/Granted day:2011-07-28
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