| 摘要 |
<p>An outer rotor motor (1) has a rotor (12) rotating about an axis (A1) and a fixed stator (14). On the inner peripheral surface of a circular cylindrical section (122c) of a resin member (12) for fan motor connection, there are arranged a ring-shaped yoke (124), a ring-shaped rotor magnet (126) fixed to a fixation groove formed in a radially inner surface of the yoke (124), and a yoke (128) fixed to a fixation groove formed in a radially inner surface of the rotor magnet (126). The rotor magnet (126) is magnetized such that the poles alternate circumferentially. The yoke (124) covers a radially outer surface (126e) of the rotor magnet (126) and also covers portions of the radially outer sides of an axially upper surface (126u) and axially lower surface (126d) of the rotor magnet (126).</p> |
