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    • 15. 发明公开
    • MINIATURE CIRCUIT BREAKER
    • MINI-SCHUTZSCHALTER
    • EP2474015A2
    • 2012-07-11
    • EP10754538.6
    • 2010-09-03
    • EATON Industries Manufacturing GmbH
    • GANLEY, Sean, ChristopherSTEVENS, John
    • H01H71/12H01H71/70H01H71/32
    • H01H71/2409H01H3/3005H01H71/125H01H71/322H01H71/70H01H71/74H01H2071/328
    • A miniature circuit breaker (1) having a control unit (22) arranged to produce a trip signal to trigger a trip mechanism (20) into opening a pair of contacts (8,10) if it determines that an overcurrent condition occurs based on an output of a current sensor (23); an electric motor (25) operable to close the contacts via a contact closing mechanism (30a); a force transfer mechanism (70) arranged to transform a first trigger force into a second trigger force larger than the first trigger force, wherein the force transfer mechanism couples an electromechanical actuator (61) to a contact opening mechanism (30b) such that the second trigger force triggers the contact opening mechanism into opening the contacts; and/or a mechanical energy store (44, 46) arranged to accumulate mechanical energy from operation of the closing actuator (25) and subsequently to release accumulated mechanical energy to close the contacts.
    • 一种微型断路器,其具有在线路端子和负载端子之间的主电流路径中的一对可操作触点,如果发生过电流状态则用于断开触点的跳闸机构,以及通过触点闭合机构闭合触点的电动马达。 跳闸机构包括触发机构和接触开启机构,布置成检测通过主电流路径的电流的电流传感器和控制单元。 如果产生跳闸信号,触发机构触发触点断开机构。 如果根据电流传感器的输出确定发生短路状态,则控制单元产生跳闸信号以操作触发机构; 并且所述控制单元被布置成如果确定发生过载状况则操作所述电动机以触发所述接触开启机构以独立于所述触发机构打开所述触点。