| 摘要 |
A dynamo-electric machine includes: a stator having an iron core constructed by linking outer peripheral portions of a plurality of teeth arranged at equiangular pitches in a circumferential direction by an annular core back, and a plurality of coils wound around the teeth; and a rotor constructed by a plurality of magnetic poles composed of magnetic members arranged at equiangular pitches in the circumferential direction, the magnetic poles being formed into one piece by a base portion composed of a nonmagnetic member, and the rotor being rotatably disposed around an axis of the stator and adjacently to an inner periphery of the stator. The plurality of coils are composed of a plurality of first coils that are excited by alternating current and a plurality of second coils that are excited by direct current, each of the coils being wound around each of the teeth without involving any other teeth.
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