| 摘要 |
A centrifugal switch and a brushless liquid-resistance electric motor starter with same. The centrifugal switch comprises a stationary electrode (7, 7') fixedly arranged on a liquid storage box shell (1) of an electric motor starter and a movable electrode (8, 8') arranged on an elastic force mechanism, wherein the elastic force mechanism comprises a guide rod (12, 12'), a linkage block (15, 15') sleeving the guide rod (12, 12'), a pressing spring (14, 14') which enables the movable electrode (8, 8') and the stationary electrode (7, 7') to be separated and reset after the linkage block (15, 15') completes an electric start, and a clamping fixing component for clamping and fixing the linkage block (15, 15'); and the elastic force mechanism further comprises a power-assisted component which enables the movable electrode to be attached to the stationary electrode more quickly and is arranged on an outer side wall of the linkage block (15, 15'). In an attachment process of movable and stationary electrodes, a centrifugal switch makes the duration of an electric arc shorter; when the movable electrode is completely attached to the stationary electrode, no electric arc is generated and the damage to the electrodes is reduced. |
