| 摘要 |
PURPOSE:To suppress the rectifying spark of a DC machine by uniformly forming the effective inductance of a rectifying coil, thereby equalizing the rectifying performance of the respective coils. CONSTITUTION:When the number of coil sides is, for example, 2, the end coil parts of upper coil 12c1 inserted into a solt 11a and an upper coil 12a2 inserted into a solt 11b are intimately disposed. Simultaneously, the coil parts of the lower coils 12d1, 12b2 are wound in an intimately contact manner. Other upper and lower coils are similarly wound. Leakage magnetic flux produced by the rectification of the rectifying coil is suppressed by the mutual induction of the rectifying coils, the effective inductance of the coil can be reduced, and the effective inductance of the coils can be approached to an equal value. |
