| 摘要 |
PURPOSE:To simply mount a spark quenching condenser without play without using special jig by holding the condenser under pressure in the recess of field windings by utilizing the spring effect of a mounting plate. CONSTITUTION:Chordal groove or shallow groove-like bent spring portion is provided at the peripheral portion 12 of the central hole 7 of a mounting plate 11 to thus form a mounting plate spring 13. A spark quenching condenser 5 is mounted via an insulator plate 14. Then, the respective condensers 5 are so filled in the recess of rotor windings 3 as to couple a rotor iron core 2 with the spring 13. Thus, since the condensers 5 are held under pressure by the spring effect of the spring 13, no play occurs when the rotor is rotated to simplify the assembling step of the rotor. |
