| 摘要 |
PROBLEM TO BE SOLVED: To form a stator easily.SOLUTION: A first stator core 41 has a ring-shaped first core base 51. At the outer peripheral end of the first core base 51, a cylindrical first core back 52 is formed to extend in the axial direction. At the inner peripheral end of the first core base 51, a plurality of first claw-shaped magnetic poles 53 are formed. The first claw-shaped magnetic pole 53 has a first base 54 extending radially inward from the inner peripheral end of the first core base 51, and a first magnetic pole 55 extending in the axial direction from the inside end of the first base 54. The first magnetic pole 55 is formed in the shape of substantially trapezoidal plate. In the first magnetic pole 55, the side face (inner side face) 55a on the radial inside, and the side face (outer side face) 55b on the radial outside are flat surfaces. |
