| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor of a permanent-magnet-type rotary electric machine, preventing a change in a rotary balance during operation, and accurately stabilizing the rotating operation, by surely fixing a permanent magnet to a retaining ring side in either state of stop or operation, without generating excessive stress in the permanent magnet, in the rotor of the permanent-magnet-type rotary electric machine having a structure in which an interval between a rotor axis and the retaining ring is greater than the thickness of the permanent magnet. SOLUTION: Groove parts 13, 16 extending along the rotor shaft 8 in the axial direction and facing each other are formed on the face parts of both of points facing each other in the rotor axis 8 and the permanent magnet 9. Wedges 20 are inserted into space parts 17 composed between the groove parts 13, 16 facing each other, respectively. The permanent magnet 9 is brought into contact with and fixed to the inner circumferential face of the retaining ring 3 by inserting these wedges 20. COPYRIGHT: (C)2011,JPO&INPIT
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