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    • 49. 发明授权
    • Current-activated bypass switch
    • 电流启动旁路开关
    • US5362576A
    • 1994-11-08
    • US923068
    • 1992-07-31
    • Thomas ClarkDavid M. McCormickAlan Whitebook
    • Thomas ClarkDavid M. McCormickAlan Whitebook
    • H01H61/00H01M2/34H01M6/50H01M14/00H01M2/00
    • H01H61/00H01M2/34H01M2200/10
    • A switch is operated by an electrical current to automatically change from a ready condition to a tripped condition. The switch includes a fixed cylindrical contact and a movable plunger contact that are held apart by a thermal holding link acting against the force of a spring. When the switch in the ready condition, an electrical current of sufficient magnitude passing through the thermal holding link will weaken and separate the link and thereby allow the spring to move the plunger contact into electrical contact with the cylindrical contact. In an alternative embodiment, the switch can be configured to be closed in the ready condition, in which case current does flow through the cylindrical contact and the plunger contact, but ceases when the switch is changed to the tripped condition.
    • 开关由电流操作,以便从就绪状态自动切换到跳闸状态。 该开关包括固定的圆柱形触点和可动的柱塞触头,该触点由抵抗弹簧的力的热保持连杆夹持。 当开关处于就绪状态时,通过热保持连接的足够大的电流将减弱并分离连杆,从而允许弹簧将柱塞触点移动到与圆柱形触点电接触。 在替代实施例中,开关可以被配置为在就绪状态下关闭,在这种情况下,电流流过圆柱形触点和柱塞触点,但是当开关变为跳闸状态时,开关停止。