| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor of a permanent magnet type rotary electric machine, which holds permanent magnets disposed on the external circumferential surface of a rotor core, and enables manufacture of a holding circle having soft magnetic phase portions corresponding to permanent magnets and non-magnetic phase portions sandwiched between the soft magnetic portions which are provided alternately, and can be easily assembled to a rotor core of the holding circle. SOLUTION: The rotor 14 has a structure in which a plurality of permanent magnets 17 are disposed on the external circumferential surface of the rotor core 15 and a holding circle 18 disposed in a state of contacting the external circumferential surface of the permanent magnets 17 is provided. The holding circle 18 is constituted so that a circle made of an austenite stainless steel is subjected to partial plastic processing and portions 18a corresponding to the permanent magnets 17 can form a soft magnetic phase and portions 18b corresponding to spaces of adjacent permanent magnets 17 can form a non-magnetic phase. The holding circle 18 is fixed on the external circumferential surface of the rotor core 15 by welding in a portion 18b. COPYRIGHT: (C)2008,JPO&INPIT
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