| 摘要 |
PROBLEM TO BE SOLVED: To provide an armature core capable of maintaining a shape of annularly arrayed split cores and suppressing magnetic loss.SOLUTION: A stator core 10 includes a plurality of split cores 12 and a shaft 14 press-fitted into an axial center part of the annularly arrayed split cores 12. The split cores 12 includes a teeth sections 30 and a connection section 34 provided radially inside of the teeth sections 30. A fitting projection 36 is provided at a circumferential one end of the connection section 34, and an outer fitting projection 104 and an inner fitting projection 106 are provided at the circumferential other end of the connection section 34. The outer fitting projection 104 is provided with a projection 104C of the outer engagement projection side, and the inner fitting projection 106 is provided with a projection 106C of the inner fitting projection side. At the outer fitting projection 104 and the inner fitting projection 106, respective tip ends are formed gradually narrower than an outer connection section C1 and an inner connection section C2 toward the projection direction. |
