| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact, simple and inexpensive permanent magnet type 2-phase rotary electric machine containing a stepping motor by employing two winding poles. SOLUTION: This permanent magnet type 2-phase rotary electric machine includes a plurality of inductors on each end of a stator main pole, which is provided in such a manner so as to project inward from a roughly rectangular magnet substance, having two 2-phase type winding poles and two auxiliary poles. In the 1-phase of main pole, one winding pole is separated at a mechanical angle of almost 180°from one auxiliary pole and respective plurality of small teeth positions are displaced at an electrical angle of almost 180°from each other in the winding pole and the auxiliary pole. Two unit rotors A and B having a plurality (Nr) of teeth rotatably mounted through air gap, which sandwich two axially magnetized permanent magnets displaced by half pitch each other, are installed on the common rotating shaft to rotatably ensure air gap for assembly. COPYRIGHT: (C)2008,JPO&INPIT
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