| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor with rotors arranged to face each other with a gap provided on both surface sides of a stator, which is of low cost, smaller than before, and light weight. SOLUTION: In a novel motor 1a, a stator 4 is arranged between two rotors 3a and 3b pivoted on a motor shaft 2. Magnetic poles 32a-32c are so arranged as tripartitioned in radial direction at respective magnetic pole positions in circumferential direction of the plane facing the stator 4 of the rotors 3a and 3b. Two-phase coils 6u and 6wa are concentrically provided on at least one surface of the stator 4, and annular coils 6u, 6v, 6wa, and 6wb for excitation in each phase are distributed on both surfaces of the stator 4. Magnetic poles 42a, 42b, and 42c are so arranged as to deviate in circumferential direction, on the inner peripheral side and outer peripheral side of the coils 6u-6wb of each phase on both surfaces of the stator 4. A pair of magnetic poles excited in radial direction are formed on both surfaces of the stator 4 by energizing the coils 6u-6wb of each phase in the order of phase to rotate the rotors 3a and 3b. COPYRIGHT: (C)2011,JPO&INPIT
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