Invention Grant
- Patent Title: Permanent magnet-type rotary electric machine and production method for rotor for permanent magnet-type rotary electric machine
- Patent Title (中): 永磁式旋转电机及永磁式旋转电机转子的生产方法
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Application No.: US12440652Application Date: 2008-05-16
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Publication No.: US07973442B2Publication Date: 2011-07-05
- Inventor: Toshimitsu Takahashi
- Applicant: Toshimitsu Takahashi
- Applicant Address: JP Aichi-ken
- Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Aichi-ken
- Agency: Sughrue Mion, PLLC
- Priority: JP2007-136985 20070523
- International Application: PCT/IB2008/001215 WO 20080516
- International Announcement: WO2008/142519 WO 20081127
- Main IPC: H02K1/27
- IPC: H02K1/27 ; H02K15/03 ; H01F41/02

Abstract:
A production method for a rotor for a permanent magnet-type rotary electric machine, includes the step (S01, S02) of forming a magnet piece that has a plurality of groove portions that are provided on at least one of end surfaces of the magnet piece in a predetermined direction, the step (S03) of stacking a plurality of formed magnet pieces so that adjacent magnet pieces contact each other and the plurality of groove portions of one of the adjacent magnet pieces cross with the plurality of groove portions of another one of the adjacent magnet pieces, and the step (S04) of inserting and disposing the plurality of stacked magnet pieces into a hole formed in a rotor core.
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