发明公开
EP2220659A1 PERMANENT MAGNET, MANUFACTURING METHOD THEREOF, AND ROTOR AND IPM MOTOR
有权
永磁体及其制造方法转子和IPM电机
- 专利标题: PERMANENT MAGNET, MANUFACTURING METHOD THEREOF, AND ROTOR AND IPM MOTOR
- 专利标题(中): 永磁体及其制造方法转子和IPM电机
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申请号: EP08855885.3申请日: 2008-12-02
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公开(公告)号: EP2220659A1公开(公告)日: 2010-08-25
- 发明人: NAKAMURA, Kenji , TAKEUCHI, Shigeto , KANADA, Keiu , SUZUKI, Masafumi , KOGURE, Tomonari
- 申请人: Toyota Jidosha Kabushiki Kaisha
- 申请人地址: 1 Toyota-cho Toyota-shi, Aichi-ken 471-8571 JP
- 专利权人: Toyota Jidosha Kabushiki Kaisha
- 当前专利权人: Toyota Jidosha Kabushiki Kaisha
- 当前专利权人地址: 1 Toyota-cho Toyota-shi, Aichi-ken 471-8571 JP
- 代理机构: Kuhnen & Wacker
- 优先权: JP2007316297 20071206
- 国际公布: WO2009071975 20090611
- 主分类号: H01F7/02
- IPC分类号: H01F7/02 ; H01F41/02 ; H01F1/08 ; H02K1/27
摘要:
A manufacturing method for a permanent magnet includes the steps of a) producing a permanent magnet (1), b) fracturing the permanent magnet (1) to obtain two or more separate pieces (13), and c) restoring the permanent magnet (1) by fitting the fracture surfaces of adjacent separate pieces (13) together.
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