| 摘要 |
PROBLEM TO BE SOLVED: To provide an armature capable of making magnetic saturation unlikely to occur in an armature core.SOLUTION: An armature core is formed by axially laminating a plurality of core sheets 21 in the same shape while circumferentially rotating them at intervals of an equal angle and in a shaft press-fitting hole 22 formed in each core sheet 21, a plurality of recesses 22a which are recessed radially outside are formed at equal intervals in a circumferential direction. A rotational lamination angle of the core sheets 21 is set smaller than an angle interval between the recesses 22a, and a circumferential centerline L2 of each recess 22a is set at a position circumferentially dislocated from a minimum diameter portion 23a of a base part 23. |
