| 摘要 |
PROBLEM TO BE SOLVED: To provide a permanent magnet embedded rotor with stable quality, which is free from the deficiency or break of permanent magnets upon insertion of permanent magnets, and also in which the permanent magnets are always fixed surely in certain positions for embedding permanent magnets and the quantity of unbalance in rotation of the rotor is reduced. SOLUTION: The permanent magnet embedded rotor includes: a rotor stacked core 11, in which a plurality of magnetic plates 11a where holes 12a for embedding magnets are created at equal intervals in its circumferential direction are stacked; and permanent magnets 13, which are installed in each hole 12a for embedding the magnets. In the rotor, a thin part 15a, which is thinner than the magnetic plate 11a, is formed at the side of the hole 12a for embedding the magnets of the magnetic plate 11a, and the permanent magnet 13 is fixed to the rotor stacked core 11 by the elastic transformation of the thin part 15a. COPYRIGHT: (C)2010,JPO&INPIT
|
