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1. (WO2017031663) CENTRIFUGAL SWITCH AND BRUSHLESS LIQUID-RESISTANCE ELECTRIC MOTOR STARTER WITH SAME

Pub. No.:    WO/2017/031663    International Application No.:    PCT/CN2015/087918
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Tue Aug 25 01:59:59 CEST 2015
IPC: H02P 1/36
Applicants: SHANG, Qingui
尚勤贵
SHANG, Jinge
尚金鸽
SHANG, Jinduo
尚金铎
Inventors: SHANG, Qingui
尚勤贵
Title: CENTRIFUGAL SWITCH AND BRUSHLESS LIQUID-RESISTANCE ELECTRIC MOTOR STARTER WITH SAME
Abstract:
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.