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公开(公告)号：US5021819A
公开(公告)日：1991-06-04
申请号：US563588
申请日：1990-08-06
IPC分类号： H01H71/52
CPC分类号： H01H71/522
摘要： A molded case circuit breaker includes an operating handle yoke that contacts the cradle operator and drives the operating mechanism springs over-center when the circuit breaker operating handle is moved from its RESET to its ON position. The contact between the handle yoke and cradle operator accelerates the over-centering of the powerful operating mechanism springs.
摘要翻译： 模制外壳断路器包括操作手柄轭，当操作手柄从其复位位置移动到其ON位置时，操作手柄轭与支架操作器相接触并将操作机构弹簧驱动到中心以上。 手柄轭和支架操作员之间的接触加速了强力操作机构弹簧的过度定心。
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公开(公告)号：US5023582A
公开(公告)日：1991-06-11
申请号：US526481
申请日：1990-05-21
CPC分类号： H01H71/505 , H01H2071/508 , H01H71/1054 , H01H71/522
摘要： A molded case circuit breaker employs a multiple latch assembly for maintaining the circuit breaker operating mechanism in a closed condition. The multiple latch assembly includes three separate latch levers mounted on a common latch support frame. The multiple latch arrangement substantially reduces the amount of tripping force required to articulate the circuit breaker operating mechanism.
摘要翻译： 一种塑壳断路器采用多重闭锁组件，用于将断路器操作机构保持在闭合状态。 多重闩锁组件包括安装在公共闩锁支撑框架上的三个单独的闩锁杆。 多重闩锁装置大大减少了将断路器操作机构连接起来所需的跳闸力。
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公开(公告)号：US5070361A
公开(公告)日：1991-12-03
申请号：US620174
申请日：1990-11-30
申请人： Gary D. Magnon , Raymond K. Seymour , David J. Lesslie , Michael C. Guerrette , Geoffrey H. McKay
发明人： Gary D. Magnon , Raymond K. Seymour , David J. Lesslie , Michael C. Guerrette , Geoffrey H. McKay
CPC分类号： H01H73/04 , H01H71/522
摘要： An operating mechanism assembly used within molded case circuit breakers employing electronic trip units interconnects the operating mechanism with the circuit breaker movable contact arms by means of a slotted-cam arrangement. The slotted-cam optimizes the manual closing of the movable contact arms by controllably over-centering the circuit breaker operating mechanism springs.
摘要翻译： 在使用电子跳闸单元的模制外壳断路器中使用的操作机构组件通过开槽凸轮装置将操作机构与断路器可动接触臂互连。 开槽凸轮通过可控制地使断路器操作机构弹簧过度对中来优化可动接触臂的手动关闭。
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公开(公告)号：US5004878A
公开(公告)日：1991-04-02
申请号：US330521
申请日：1989-03-30
申请人： Raymond K. Seymour , Marshall B. Hart , Gary D. Magnon , Michael C. von Kannewurff , Dennis J. Doughty
发明人： Raymond K. Seymour , Marshall B. Hart , Gary D. Magnon , Michael C. von Kannewurff , Dennis J. Doughty
CPC分类号： H01H1/5833 , H01H77/104
摘要： A molded case circuit breaker having a pair of movable contact arms arranged within a single pole utilizes a shunt clip between the movable contact arms to insure electrical continuity between the contact arms and the support base during intense short circuit interruption. A compression spring-driven camming arrangement insures good electrical connection between the circuit breaker contacts under steady quiescent operating conditions while preventing reclosing of the contacts during short circuit interruption.
摘要翻译： 具有布置在单极内的一对可动接触臂的塑壳断路器利用可移动接触臂之间的分流夹，以在强烈的短路中断期间确保接触臂和支撑座之间的电连续性。 压缩弹簧驱动的凸轮装置在稳定的静止工作条件下确保断路器触点之间良好的电连接，同时防止在短路中断期间触头的重合闸。
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