Patent ID: 7911099

Claim:
An outer rotor motor comprising: a bearing that supports a motor shaft; a stator core; and a bearing housing, wherein the bearing is attached to an inner circumference side of the bearing housing and the stator core is attached to an outer circumference side of the bearing housing, the bearing housing includes a housing main body that is formed into a cylindrical shape by drawing a metal sheet or press-forming a metal cylinder, a plurality of protruding surfaces are formed on the housing main body by plastic deformation so as to protrude further outward than the housing main body, the protruding surface are equally spaced in the circumferential direction, the protruding surfaces extend in the longitudinal direction of the bearing housing, a casing supports a motor substrate on which a motor driving circuit is provided, a core supporting portion, that includes a stepped portion erected from the casing, is integrally molded with the casting from resin, a front end of the core supporting portion is fitted into a gap between the protruding surfaces of the housing main body so as to support the bearing housing, the bearing is attached to an inner circumferential surface of the housing main body, the stator core is fitted with the protruding surfaces of the housing main body, and the stator core is attached with being supported by the stepped portion.