| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor where demagnetization of an end part of a permanent magnet can be suppressed, even if the end part of the permanent magnet is arranged near the surface of the rotor, a total amount of the permanent magnets embedded in the rotor can be increased and the torque of the rotary electric machine can be improved. SOLUTION: The rotor 14 is provided with a rotor core 15 and a rotor axis 16, and the rotor can be rotatably supported by a bearing of a housing via the rotor axis 16, in a state where an outer peripheral face of the rotor core 15 keeps a prescribed space from teeth 12. The permanent magnets 18 are embedded in respective poles of the rotor 14 so that the rotor 14 is projected toward the center axis-side of the rotor 14. The permanent magnets 18 are constituted so that the magnets as a whole become parallel-magnetized. Parallel magnetization means is such that the magnetization direction (magnetization orientation) of the permanent magnets 18 is parallel to a straight line that passes through the center of respective layers and the center of the rotor 14. COPYRIGHT: (C)2008,JPO&INPIT
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