| abstract |
Motor includes：Yoke (5), the yoke (5) have cylinder portion (53)；Two pairs of permanent magnets (7), these two pair permanent magnet (7) and the inner peripheral surface in cylinder portion (53) are oppositely disposed；And armature (6), the armature (6) is supported to rotate freely than opening position of the permanent magnet (7) by radially inner side, the opening position of first flat part (61) is being avoided in the first flat part (61) of cylinder portion (53) formed with least one pair of diametrically opposed, and by permanent magnet (7) configuration. |