| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor capable of solving a problem in conventional motors in which minute recesses and projections are formed on a yoke and a teeth of a slot, and when plural recesses are formed in a part where the magnetic flux density is high, particularly on the teeth, the saturation of magnetic fluxes causes an increase of iron loss and redaction of torque constant resulting in the efficiency.SOLUTION: The motor includes: a stationary part having a winding via an insulating paper; and a rotor having a permanent magnets in a slot formed with a yoke and teeth. Plural yoke recesses are formed on the yoke in the slot. Each of the teeth has a smaller portion. |
