| 摘要 |
PROBLEM TO BE SOLVED: To provide a unipolar motor which rotates a rotor by Lorentz force by generating Lorentz force only in one direction of a coil. SOLUTION: Coils 12b are wound segmentally between projections 12a1 which are formed at specified intervals in the circumferential direction of an annular magnetic material 12a in a stator 12, and the permanent magnet 14a of the rotor 14 is brought close to the periphery of the coil 12b, whereby magnetic flux coming out of the permanent magnet 14a passes through the coil 12b from the peripheral side of the coil 12b to the inner perimetrical side thereof, while magnetic flux reaching the midsection of the coil goes from the inner perimetrical side of the coil 12b to the peripheral side thereof without passing through the coil 12b via a magnetic material 12a1 which has a projection. COPYRIGHT: (C)2011,JPO&INPIT
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