Invention Grant
- Patent Title: Rotor for the electric machine
- Patent Title (中): 转子为电机
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Application No.: US13982629Application Date: 2012-02-02
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Publication No.: US09231445B2Publication Date: 2016-01-05
- Inventor: Shinya Sano , Ken Takeda , Tomohiro Inagaki , Shinichi Otake , Tsuyoshi Miyaji , Yuta Watanabe , Ryosuke Utaka
- Applicant: Shinya Sano , Ken Takeda , Tomohiro Inagaki , Shinichi Otake , Tsuyoshi Miyaji , Yuta Watanabe , Ryosuke Utaka
- Applicant Address: JP Aichi-ken JP Aichi-ken JP Aichi
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA,AISIN AW CO., LTD.,DENSO CORPORATION
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA,AISIN AW CO., LTD.,DENSO CORPORATION
- Current Assignee Address: JP Aichi-ken JP Aichi-ken JP Aichi
- Agency: Sughrue Mion, PLLC
- Priority: JP2011-021411 20110203
- International Application: PCT/IB2012/000170 WO 20120202
- International Announcement: WO2012/104715 WO 20120809
- Main IPC: H02K1/27
- IPC: H02K1/27

Abstract:
A rotor (10) for a rotary electric machine has a plurality of magnetic poles (24) provided at intervals, in a circumferential direction, at the outer periphery of a rotor core (12). Each of the magnetic poles (24) has a first permanent magnet (26) buried in the center of the magnetic pole, and a pair of second permanent magnets (28) that are buried on both sides of the first permanent magnet (26) in the circumferential direction, and that are disposed such that a mutual spacing between the pair of the second permanent magnets (28) becomes narrower inward in the radial direction. A narrowest spacing between the pair of second permanent magnets (28) is set to be wider than a longitudinal-direction width of the first permanent magnet (26) in a magnetic path region (30) that is defined by the first permanent magnet (26) and the pair of second permanent magnets (28).
Public/Granted literature
- US20130307363A1 ROTOR FOR ELECTRIC MACHINE Public/Granted day:2013-11-21
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