Patent ID: 8400039

Claim:
An outer rotor motor, comprising: a rotor having a ring-shaped rotor magnet with magnetic poles alternately changing in a circumferential direction, and a yoke for covering a radially outer surface of said rotor magnet and partially covering a first axially-directed surface and a second axially-directed surface of said rotor magnet on a radially outer side, said first and second axially-directed surfaces being located at opposite axially-directed ends of said rotor magnet, respectively; and a stator having teeth that face a radially inner surface of said rotor magnet, and coils wound around each side teeth, wherein the rotor includes a resin member having a cylindrical part with the yoke provided over an inner peripheral surface of the cylindrical part, the rotor magnet is fixed to a fixing slot defined in a radially inner surface of the yoke, a radially outer surface of the yoke and entire surfaces of both axially-directed surfaces of the yoke are covered with the resin member, said resin member does not cover a part of said first axially-directed surface and said second axially-directed surface of said rotor magnet, and said yoke as a single piece uninterruptedly covers a successive area extending from said radially outer surface to said first and second axially-directed surfaces on the radially outer side.