| 摘要 |
PROBLEM TO BE SOLVED: To improve output torque and reduce vibration by preventing torque ripples from occurring in a motor equipped with a rotor and a stator of laminate structure.SOLUTION: A motor includes a rotor 4 which laminates rotor parts 3u, 3v, 3w composed by a main magnet 8 put between a pair of rotor cores 7a, 7b on a plurality of layers in an axial direction of a rotary shaft 1; and a stator 6 which is disposed around the rotor 4 and laminates a plurality of layers of stator parts 5u, 5v, 5w in the axial direction of the rotary shaft 1. In the motor, auxiliary magnets 13a, 13b are attached onto an upper surface of the rotor part 3u on a top layer of the rotor 4 and a lower surface of the rotor part 3w on the bottom layer. |
