| 摘要 |
A stator includes a stator core and a multi-phase stator coil distributedly wound on the stator core. The stator core includes a plurality of teeth and a yoke having a plurality of grooves. Each of the teeth has a press-fit portion, which is press-fitted in a corresponding one of the grooves of the yoke, and a main body portion extending from the press-fit portion in a direction away from the corresponding groove. The press-fit portion has a pair of contact surfaces which are both in contact with a bottom surface of the corresponding groove and away from each other in a width direction of the tooth. Further, (a+b)≰e/2, where a and b respectively represent widths of the contact surfaces of the press-fit portion, and e represents a width of the main body portion at a press-fit portion-side end of the main body portion. |
