| 摘要 |
PURPOSE:To facilitate the magnetization of a permanent magnet, by fixing the permanent magnet to the inside circumferential surface of a rotor yoke at a predetermined interval and by embedding a magnetized coil within the predetermined interval. CONSTITUTION:A rotor 2 is arranged by which a stator 1 is surrounded. A rotor yoke 3 is provided at the outside circumference of the rotor 2, while at the inside circumferential surface of the rotor yoke 3 two permanent magnets 4 and 5 are fixed at a predetermined interval in the axial direction of a motor. The permanent magnets 4 and 5 are magnetized in the radial direction of the motor shaft, of which the direction of magnetization is made reverse. A magnetized coil 14 is embedded and fixed within the predetermined interval between a rotor core 6 and a permanent magnet 5 and a rotor core 7 fixed to the permanent magnet 5.
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