| 摘要 |
PURPOSE:To reduce a torque ripple and to enable to readily alter a torque waveform by setting the coil pitch of a stator and an angle formed between the centers of adjacent poles of the stator to prescribed range values. CONSTITUTION:A stator 3 is disposed in a rotor 2. The rotor 2 has magnets uniformly magnetized alternately with N- and S-poles. The stator 3 has tees 4, and coils 5 are wound on the tees 4. The pitch of the coil 5 is less than 10 deg. of electric angle, and an angle formed between the centers of the tees 4 is less than 180 deg. of electric angle. |
