ROTOR OF ROTARY ELECTRIC MACHINE, AND APPARATUS AND METHOD FOR MANUFACTURING THE SAME

PROBLEM TO BE SOLVED: To sufficiently apply a varnish onto a crossover part while suppressing permeation of the varnish into an undercut part of a commutator.SOLUTION: In a rotor of a rotary electric machine, there are provided a shaft 6; a rotor core 7 attached to a periphery of the shaft 6; a rotor coil 8 wound around the rotor core 7; a commutator 9 attached to one end of the shaft 6; a crossover part 22 for connecting a connection part 21 of the commutator 9 with the rotor coil 8; and a varnish 31 applied onto the rotor coil 8, the connection part 21 and the crossover part 22. There is further provided a space surface 28 with no presence of an undercut part 25 between an end part situated on the connection part 21 side of the undercut part 25 formed to the commutator 9, and the connection part 21.SELECTED DRAWING: Figure 3 【課題】整流子のアンダーカット部へのワニスの浸透を抑制しつつ渡り線部に十分なワニスを塗布する。【解決手段】シャフト６と、シャフト６の周囲に取り付けられたロータコア７と、ロータコア７に巻回されたロータコイル８と、シャフト６の一端に取り付けられた整流子９と、整流子９の接続部２１とロータコイル８とを接続するための渡り線部２２と、ロータコイル８と接続部２１と渡り線部２２に塗布されたワニス３１を備え、更に整流子９に設けられたアンダーカット部２５における接続部２１側に位置する端部と接続部２１との間にアンダーカット部２５が存在しないスペース面２８を設ける。【選択図】図３