- 专利标题: Permanent magnet type motor and electric power steering apparatus
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申请号: US14652865申请日: 2013-04-09
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公开(公告)号: US10199895B2公开(公告)日: 2019-02-05
- 发明人: Yu Hirotani , Minako Iefuji , Yuji Takizawa , Sachiko Kawasaki , Masatsugu Nakano , Toyoaki Udo , Satoru Akutsu
- 申请人: Mitsubishi Electric Corporation
- 申请人地址: JP Tokyo
- 专利权人: Mistubishi Electric Corporation
- 当前专利权人: Mistubishi Electric Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Sughrue Mion, PLLC
- 代理商 Richard C. Turner
- 国际申请: PCT/JP2013/060679 WO 20130409
- 国际公布: WO2014/167645 WO 20141016
- 主分类号: H02K3/28
- IPC分类号: H02K3/28 ; H02K1/27 ; H02K1/16 ; H02K7/14 ; H02K11/00 ; H02K29/03 ; H02K29/08 ; H02K11/215 ; H02K11/33
摘要:
To obtain a permanent magnet type motor capable of securing controllability of a motor and utilizing reluctance torque. An armature winding is a plurality of sets of polyphase windings; the plurality of sets of the armature winding is supplied with current from each individual inverter; the rotor core is provided with permanent magnets on a surface portion thereof, the permanent magnets being circumferentially arranged and the adjacent permanent magnets having polarities opposite to each other; a protrusion portion is provided between the adjacent permanent magnets, the protrusion portion being provided in a protruding condition from the rotor core and being made of a magnetic substance; and a non-magnetic gap portion is interposed between the protrusion portion and the permanent magnet in a rotating shaft direction.
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