| 摘要 |
PROBLEM TO BE SOLVED: To provide a stepping motor which improves magnetic efficiency, suppresses the generation of noise and vibration, and also is suitable for downsizing. SOLUTION: A first phase stator 26A and a second phase stator 26B include a plurality of opposite poles 26A1, 26B1 at outer peripheries of magnet rotors 25A, 25B, and extended portions 26A2, 26B2 which are extended in the outer direction of a motor diametrical direction from the poles at both ends of a motor axial direction. A first phase yoke 27A and a second phase yoke 28B are arranged so that they may cover the stators and coils, respectively. Penetration openings 26A3, 26B3 are formed at extended portions of the first phase stator and the extended portion of the second phase stator, then windings of a first phase coil 28A and a second phase coil 28B or terminals 23A, 23B are extended to the outer periphery of the motor through the openings. COPYRIGHT: (C)2007,JPO&INPIT
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