• CN 1,049,243 A
  • Filed: 08/01/1990
  • Published: 02/13/1991
  • Est. Priority Date: 08/04/1989
  • Status: Abandoned Application
First Claim
Patent Images

1. , a circuit breaker comprises:

  • be fit to be installed in a shell on the screen;

    One or more pairs of separable main contacts that loaded by described shell;

    An operating mechanism operationally is coupled to described one or more pairs of separable main contact;

    Be configured in one or more pairs of electric terminals of the outside of described shell, be connected to described one or more pairs of separable main contact on they are electric;

    The trip gear that circuit breaker trip is used operationally is coupled with described operating mechanism;

    A release pin cooperates with described trip gear, when described release pin is driven, causes described one or more pairs of separable contact to be separated;

    It is characterized in that;

    drive unit drives described trip gear at described shell when described screen shifts out, and wherein, described drive unit comprises;

    an actuating arm shell;

    An actuating arm;

    A driving spring, it outwards applies bias voltage to described actuating arm from described actuating arm shell;

    And stop device, it limits described actuating arm and moves with respect to described actuating arm shell.

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