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    Circuit breaker calibration screw
    1.
    发明授权
    Circuit breaker calibration screw 失效
    断路器校准螺丝

    公开(公告)号：US06486759B2

    公开(公告)日：2002-11-26

    申请号：US09725536

    申请日：2000-11-29

    申请人： Tony Hui Haugh ,  Jaymin Sharad Patel ,  Joseph Criniti ,  Javier Ignacio Larranaga ,  Pedro Acevedo

    发明人： Tony Hui Haugh ,  Jaymin Sharad Patel ,  Joseph Criniti ,  Javier Ignacio Larranaga ,  Pedro Acevedo

    IPC分类号： H01H8102

    CPC分类号： H01H71/7436 ,  H01H2071/7472

    摘要： A molded case circuit breaker that includes a double headed calibration screw. The calibration screw has a first and second end with identical convex tip surfaces and screw driver engagement surfaces. The convex tip surface is suitable for engaging a bi-metal thermal overload element. The screw driver engagement surface is suitable for applying a screw driver to adjust the calibration screw position in order to adjust the deflection of the bimetal and calibrate the thermal overload protection. At least one calibration screw planar surface allows for improved sealant injection to permanently fix the screw position and associated calibration setting following adjustment.

    摘要翻译： 包括双头校准螺丝的塑壳断路器。 校准螺钉具有第一和第二端，其具有相同的凸顶表面和螺丝刀接合表面。 凸顶表面适于接合双金属热过载元件。 螺丝刀接合表面适用于施加螺丝刀以调节校准螺丝位置，以便调节双金属片的偏转并校准热过载保护。 至少一个校准螺丝平面允许改进的密封剂注入，以在调整后永久地固定螺钉位置和相关联的校准设置。

    Armature for latching a circuit breaker trip unit
    2.
    发明授权
    Armature for latching a circuit breaker trip unit 失效
    用于锁定断路器跳闸单元的电枢

    公开(公告)号：US06232860B1

    公开(公告)日：2001-05-15

    申请号：US09602788

    申请日：2000-06-23

    申请人： Pedro Acevedo ,  Javier I. Larranaga ,  Joseph Criniti ,  Thomas R. Campbell ,  Jose Velez

    发明人： Pedro Acevedo ,  Javier I. Larranaga ,  Joseph Criniti ,  Thomas R. Campbell ,  Jose Velez

    IPC分类号： H01H920

    CPC分类号： H01H71/505 ,  H01H71/405 ,  H01H71/524

    摘要： A latching system for a circuit breaker is arranged to actuate a trip unit and interrupt circuit current upon occurrence of a short circuit or an overcurrent condition. The latching system employs an armature having a recess formed therein and a cradle having a cradle tip arranged to releasably engage the recess. A thermal magnetic trip unit is depicted within the circuit breaker for the purposes of detecting overcurrent conditions through the electric path. During current transport through the circuit breaker, the current is thermally sensed by means of the bimetal and magnetically sensed by means of the magnet. The armature rotates against the return bias of a compression spring to release the cradle tip from the recess and allow counterclockwise rotation of the contact arm. The rotation of the contact arm causes the separation of the movable and fixed contacts under the urgence of a mechanism spring.

    摘要翻译： 用于断路器的闭锁系统被布置成在发生短路或过电流状况时致动跳闸单元并中断电路电流。 闩锁系统使用具有形成在其中的凹部的电枢和具有布置成可释放地接合凹部的托架顶端的托架。 为了检测通过电路的过电流状况，断路器中描绘了热磁跳闸单元。 在通过断路器的电流传输期间，电流通过双金属热感测并通过磁体进行磁感测。 电枢抵抗压缩弹簧的返回偏压旋转，以将托架尖端从凹部释放，并允许接触臂的逆时针旋转。 接触臂的旋转导致在机构弹簧的紧迫下分离可动和固定触点。