| 摘要 |
PROBLEM TO BE SOLVED: To provide a brushless motor that improves the roundness of a stator core and a fixing force between a case and the stator core.SOLUTION: A brushless motor 60 includes a rotor 50, a stator core 20 and a stator case 70. The stator core 20 includes a yoke 40, teeth parts 24, and an inner annular part 41 extending from end portions of the teeth parts 24 circumferentially of the rotor 50 and having a surface facing the rotor 50 in a circular surface R axially centered on the rotor 50. The yoke 40 is provided with projecting portions 78U, 78V, 78W arranged at constant intervals circumferentially of the yoke 40 in an axial view of the yoke 40. The stator case 70 is provided with a plurality of plastic deformation portions 72, and the plastic deformation portions 72 are arranged at constant intervals circumferentially of the yoke 40 in the axial view of the yoke 40. |
