| 摘要 |
PROBLEM TO BE SOLVED: To provide a brushless motor having improved vibration resistance. SOLUTION: A plurality of outer circumferential protrusions 52 each protruding from an outer periphery 40A of a cylindrical part 40 to the outside of a diameter direction are formed on a center piece 24, and a plurality of first inner circumferential protrusions 56 each protruding from the inner periphery 54A of a core body 54 to the inside of a diameter direction and formed on the center of a pair of adjacent outer circumferential protrusions 52 are formed on a stator 18. Vibration resistance members 26 are each disposed in a diameter direction between the cylindrical part 40 and the core body 54 and between the pair of adjacent outer circumferential protrusions 52. The vibration resistance members 26 each have an arc-like outer periphery 26A facing the inner periphery 54A of the core body 54; a pair of circumferential ends 62 formed on both sides of the outer periphery 26A and engaged in the circumferential direction of the outer circumferential protrusions 52 and the stator 18; and a first outer circumferential recess 64 formed on the outer periphery 26A and engaged in the circumferential direction of the first inner circumferential protrusion 56 and the stator 18. COPYRIGHT: (C)2011,JPO&INPIT |
