Invention Grant
- Patent Title: Rotor of permanent magnet rotating electric machine
- Patent Title (中): 永磁旋转电机转子
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Application No.: US12788031Application Date: 2010-05-26
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Publication No.: US07880358B2Publication Date: 2011-02-01
- Inventor: Tsukasa Taniguchi , Hiroyuki Mikami , Satoshi Kikuchi , Fumio Jyoraku , Hideyuki Harada
- Applicant: Tsukasa Taniguchi , Hiroyuki Mikami , Satoshi Kikuchi , Fumio Jyoraku , Hideyuki Harada
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Crowell & Moring LLP
- Priority: JP2002-232264 20020809
- Main IPC: H02K1/27
- IPC: H02K1/27

Abstract:
A permanent magnet rotating electric machine has a stator provided with a plurality of windings, and a rotor in which magnets are disposed in slots formed in a rotor core along an outer circumference thereof. The rotor core is fixed on a rotary shaft rotating inside the stator, and one magnetic pole is constituted by each group of three or more of the magnets. A total angle occupied by the group of magnets constituting one magnetic pole is in the range of 150 to 165 degrees in terms of an electrical angle.
Public/Granted literature
- US20100231078A1 Rotor of Permanent Magnet Rotating Electric Machine Public/Granted day:2010-09-16
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