| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetization device of the rotor magnet of a permanent magnet synchronous motor by which a magnetomotive force distribution and a no-load induced voltage waveform which do not contain harmonic components can be obtained. SOLUTION: This magnetization device for a rotor magnet has a cylindrical magnetization yoke 4 having a plurality of poles 3 composed of teeth 2 arranged in a circumferential direction with uniform intervals and slots 1 opened between the teeth 2 and yoke windings 5, which are wound in the slots 1 of the magnetization yoke 4 and generate magnetic fields. Currents are applied to the yoke windings 5 to magnetize permanent magnets 6 which are provided inside the magnetization yoke 4 facing the inner surfaces of the respective poles with gaps therebetween. The teeth 2 of the magnetization yoke 4 which face the permanent magnets 6 are made of a nonmagnetic material. |
