Invention Grant
- Patent Title: Half permanent magnet motor
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Application No.: US14287536Application Date: 2014-05-27
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Publication No.: US09653952B2Publication Date: 2017-05-16
- Inventor: Yoji Yamada , Seiya Yokoyama , Shigemasa Kato , Yoshiaki Takemoto , Yoko Tateishi
- Applicant: Asmo Co., LTD.
- Applicant Address: JP Shizuoka-Ken
- Assignee: Amso Co., LTD.
- Current Assignee: Amso Co., LTD.
- Current Assignee Address: JP Shizuoka-Ken
- Agency: Carstens & Cahoon, LLP
- Agent James R. Gourley
- Priority: JP2009-091225 20090403; JP2009-091374 20090403; JP2009-096430 20090410; JP2009-100080 20090416; JP2010-079734 20100330
- Main IPC: H02K1/27
- IPC: H02K1/27 ; H02K1/24 ; H02K29/03 ; H02K21/16

Abstract:
A motor includes a rotor and a stator. The rotor includes a plurality of magnets, which function as first magnetic poles, and salient poles, which function as second magnetic poles. A ratio X1:X2 of a quantity X1 of magnetic pole portions of the rotor, which is the sum of the quantity of the magnets and the quantity of the salient poles, and the quantity X2 of slots is 2n:3n (n being a natural number). The sum of a magnetic pole occupying angle θ1 of the magnet and a magnetic pole occupying angle θ2 of the salient pole is 360°. The magnetic pole occupying angle θ1 is set in a range of 180°
Public/Granted literature
- US20140265706A1 HALF PERMANENT MAGNET MOTOR Public/Granted day:2014-09-18
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