| 摘要 |
PURPOSE:To generate the electromotive force waveform to serve various purposes by dividing a tee to form a coil pitch into two (2) and more and winding at least two (2) pieces of tees in the same direction varying the winding number of a coil. CONSTITUTION:A rotor 2 is magnetized, e.g., at every central angle of 90 deg. and to a stator 3 provided inside twelve (12) slots 4a-41 are provided at every angle of 30 deg.. Close to the rotor 2 twelve (12) small tees 5a-5l are provided. A coil 6 is wound in such a way as e.g. for the first phase of the small tees one after another from 5a-5l, counterclockwise 5a-5c and 5g-5i and clockwise 5d-5f and 5j-5l. Four (4) turns of wire are wound for tees 5c, 5f, 5i and 5l and two (2) turns for other tees. Thus, various electromotive force waveforms are generated an the starting torque, the torque ripple characteristic, etc. can be improved. |
