| 摘要 |
PURPOSE:To prevent the inner diameter side of a stator core from being affected with deflection, by forming a penetrating slot in the range of the periphery- directional angle or more of a pressure-welded section in contact with a frame. CONSTITUTION:A stator core 13 provided with a coil 14 is pressure-welded to the convex sections 12 of a frame 11 at four positions of the outer periphery, with press-in. Near the face 13a of the stator core 13 which is pressure-welded to the convex section 12, a long and narrow penetrating slot 19 is formed in the range A of the periphery-directional angle or the range B of more in contact with the convex section 12. By forming the penetrating slot 19, a thin bridge section 13b is generated on a section pressure-welded to the convex section 12. In this manner, deflection generated by press-in substance is absorbed by the bridge section 13b, and the inner peripheral side of the stator core 13 is prevented from being affected with deflection and stress due to the press-in substance. |
