| 摘要 |
PROBLEM TO BE SOLVED: To attain cost reduction and high quality of an entire motor including a control circuit.SOLUTION: A stator has: an A-phase stator magnetic pole 13; A-phase coils 1A, 1B; a B-phase stator magnetic pole 14; B-phase coils 1C, 1D; and a C1-phase stator magnetic pole 15 and a C2-phase stator magnetic pole 16 which allow a magnetic flux to pass between the stator and a rotor. The rotor has: an N-pole magnetic pole 19; an S-pole magnetic pole 17; and an X-pole magnetic pole 18 that is a third rotor magnetic pole indicating magnetic characteristics for the middle of the N-pole magnetic pole 19 and the S-pole magnetic pole 17. Two unidirectional currents are applied alternately to the A-phase coils 1A, 1B and the B-phase coils 1C, 1D to generate a consecutive torque with a small torque ripple, thereby achieving silent rotation drive at low cost in the motor. |
