Molded case circuit breaker having movable contact finger releasably
locked to an operating mechanism
    1.
    发明授权
    Molded case circuit breaker having movable contact finger releasably locked to an operating mechanism 失效
    具有可移动接触指状物的可拆卸地锁定到操作机构的塑壳断路器

    公开(公告)号:US5517164A

    公开(公告)日:1996-05-14

    申请号:US491772

    申请日:1995-06-19

    IPC分类号: H01H1/22 H01H77/10 H01H75/00

    CPC分类号: H01H77/105 H01H1/226

    摘要: A subframe is coaxially pivotally mounted with a movable frame of the operating mechanism of a molded case circuit breaker and is locked to the frame by a bell crank pawl which is pivotally mounted on the subframe. A leaf spring assembly rigidly attached to the subframe overlies the movable contact finger to engage the same in the circuit ON condition of the circuit breaker to provide desired contact force. The bell crank pawl is released upon an incrementally small amount of initial movement of the movable contact arm in response to blow-open magnetic repulsion forces to release the movable contact finger for pivotal opening movement relative to the movable frame of the circuit breaker operating mechanism.

    摘要翻译: 子框架同轴地安装有模制外壳断路器的操作机构的可移动框架,并且通过可枢转地安装在子框架上的钟形曲柄爪而锁定到框架。 刚性地附接到子车架的板簧组件覆盖着可动接触指,以将其与断路器的电路接通状态接合,以提供所需的接触力。 响应于吹出的磁性排斥力,可动接触臂的初始移动递增地少量释放钟形曲柄爪以释放可动接触指以相对于断路器操作机构的可移动框架的枢转打开运动。

    Circuit breaker with distribution lug terminal having trapped insulator
    2.
    发明授权
    Circuit breaker with distribution lug terminal having trapped insulator 失效
    配电接线端子断路器有绝缘子

    公开(公告)号:US5488337A

    公开(公告)日:1996-01-30

    申请号:US102190

    申请日:1993-08-05

    IPC分类号: H01H9/02 H01H67/02

    CPC分类号: H01H9/0264

    摘要: A molded insulator has a bottom wall, opposed sidewalls, and a transverse end wall extending between the sidewalls but spaced from the end of the bottom wall to define an opening in the bottom. A distribution lug is inserted from an open end of the insulator against the end wall, and under projections on inner surfaces of the sidewalls to trap the insulator against the end wall, and under projections on inner surfaces of the sidewalls to trap the insulator against up and down movement. The lug is attached to a circuit breaker terminal at the opening in the bottom to trap the end wall between the lug and the circuit breaker, blocking withdrawal of the insulator. A depending rib provides distal end support, while lateral ribs abut edges of barriers in the breaker housing to maintain the assembly properly aligned for electrical spacing.

    摘要翻译: 模制绝缘体具有底壁,相对的侧壁和在侧壁之间延伸但与底壁的端部间隔开的横向端壁,以限定底部的开口。 分配凸耳从绝缘体的开口端插入端壁,并且在侧壁的内表面上的突起下方,以将绝缘体捕获在端壁上,并且在侧壁的内表面上的突起下方,以将绝缘体向上捕获 和下移。 接线片连接到底部开口处的断路器端子,以将端壁捕获在凸耳和断路器之间,阻止绝缘体的抽出。 悬垂的肋提供远端支撑,而横向肋抵靠断路器壳体中的阻挡层的边缘,以使组件适当地对准电气间隔。

    Electromagnetically operated electric switching apparatus
    4.
    发明授权
    Electromagnetically operated electric switching apparatus 失效
    电磁式电动开关装置

    公开(公告)号:US5844457A

    公开(公告)日:1998-12-01

    申请号:US753353

    申请日:1996-11-25

    CPC分类号: H01H50/64 H01H50/546

    摘要: A pair of pivoted links positioned at opposite sides of a movable armature and reversely oriented with respect to each other, have a pivotal connection at their opposite ends to a movable contact carrier and intermediate their ends to the armature whereby movement of the armature is amplified in movement of the contact carrier to permit reduction in the air gap between the armature and electromagnet core without incurring a corresponding reduction in contact carrier movement.

    摘要翻译: 位于可动电枢的相对侧并且相对于彼此反向定向的一对枢转连杆在其相对端处具有枢转连接到可动触点载体并且将其端部中间到衔铁,由此电枢的移动被放大在 允许接触载体的移动以允许减小电枢和电磁铁芯之间的气隙,而不会引起接触载体运动的相应减小。