| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor having a rotor in which a ring magnet of a rare earth element is not cracked at a high temperature. SOLUTION: A permanent magnet rotor includes a rotary shaft 1, a yoke 2, and the ring magnet 3. The shaft 1 and the yoke 2 are press-injected, and the yoke 2 and the ring magnet 3 are fixed by coating a part between the yoke 2 and the magnet 3 with an adhesive 4. Powder 5 having small thermal expansion or a microcapsule 6 for sealing gas is previously mixed with the adhesive 4. COPYRIGHT: (C)2004,JPO
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