OUTER ROTOR MOTOR AND METHOD OF PRODUCING THE SAME

摘要

An outer rotor motor (1) comprises a rotor (12) rotating about an axis (A1), and a fixed stator (14). Provided over the inner peripheral surface of a cylindrical part (122c) of a fan motor connecting resin member (12) are a ring-shaped yoke (124), a ring-shaped rotor magnet (126) fixed to a fixing slot defined in the radially inner surface of the yoke (124), and yokes (128) fixed to fixing slots defined in a radially inner surface (126i) of the rotor magnet (126). The rotor magnet (126) is so magnetized that magnetic poles alternately change in a circumferential direction. The yoke (124) covers a radially outer surface (126e) of the rotor magnet (126), and parts on a radially outer side of an axially upper surface (126u) and an axially lower surface (126d) of the rotor magnet (126).