| 摘要 |
PURPOSE:To improve the cooling effect and characteristics of a motor, by a method wherein among two coils with different pole quantity, a coil organized with a pole of fewer quantity is arranged on the inlet side of a fixed slot. CONSTITUTION:One coil 2 is arranged on the inlet side in a stator 1 slot, and the other coil 3 is arranged on the bottom side of the stator 1 slot. One coil 2 is used for high speed for rotating a rotor 4, and is organized with four poles for example. The other coil 3 is used for low speed for stopping the rotation of the rotor 4, and is organized with twelve poles for example. Thus, the coil 2 for high speed with an operating time longer time than that for the coil 3 for low speed is arranged on the inlet side of the slot, and so the circumferential length of the coil 2 for high speed can be shortened, and cooling air can be directly applied to the coil 2 because the coil 2 directly confronts a fan 5. |
