Invention Grant
- Patent Title: Automotive embedded permanent magnet rotary electric machine
- Patent Title (中): 汽车嵌入式永磁旋转电机
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Application No.: US13983652Application Date: 2012-02-02
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Publication No.: US09172279B2Publication Date: 2015-10-27
- Inventor: Kosuke Sekiya , Moriyuki Hazeyama , Takeshi Mori , Hideaki Arita , Haruyuki Kometani , Masaya Inoue
- Applicant: Kosuke Sekiya , Moriyuki Hazeyama , Takeshi Mori , Hideaki Arita , Haruyuki Kometani , Masaya Inoue
- Applicant Address: JP Tokyo
- Assignee: MITSUBISHI ELECTRIC CORPORATION
- Current Assignee: MITSUBISHI ELECTRIC CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2011-023053 20110204
- International Application: PCT/JP2012/052414 WO 20120202
- International Announcement: WO2012/105656 WO 20120809
- Main IPC: H02K21/12
- IPC: H02K21/12 ; H02K1/27 ; H02K29/03

Abstract:
An automotive embedded permanent magnet rotary electric machine can suppress increases in torque ripples and cogging torque, reduce core loss near a stator, and increase magnetic torque and reluctance torque. In the automotive embedded permanent magnet rotary electric machine, a first permanent magnet and a second permanent magnet that constitute a magnetic pole are embedded so as to line up in a main direction of rotation of magnetic poles of a rotor core and are embedded so as to be radially outwardly convex in a region that extends from a leading end portion to a trailing end portion in the main direction of rotation of the magnetic poles, and the first permanent magnet is formed into an integrated body that extends from the leading end portion in the main direction of rotation of the magnetic poles beyond a pole center toward a trailing side.
Public/Granted literature
- US20130307365A1 AUTOMOTIVE EMBEDDED PERMANENT MAGNET ROTARY ELECTRIC MACHINE Public/Granted day:2013-11-21
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