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公开(公告)号：US5805038A
公开(公告)日：1998-09-08
申请号：US841731
申请日：1997-04-29
CPC分类号： H01H71/504
摘要： A circuit breaker has a shock absorber to prevent nuisance tripping which results from shock generated during ON to OFF operation of the circuit breaker. The shock is primarily caused by a snap action which occurs within the operating mechanism of the circuit breaker when the handle is moved from the ON to OFF position. The snap action results from the circuit breaker employing, as part of the operating mechanism, a toggle mechanism within an over center tension spring as a means for imparting motion in the operating mechanism. By strategically positioning the shock absorber for engagement with the operating mechanism when the circuit breaker is in the OFF position, the shock may be effectively absorbed thereby preventing the undesirable nuisance tripping.
摘要翻译： 断路器具有减震器，以防止在断路器的接通到断开操作期间产生的冲击产生的妨碍跳闸。 冲击主要是由于当手柄从开启位置移动到断开位置时发生在断路器的操作机构内的卡扣动作引起的。 作为作为操作机构的一部分的断路器，由于断路器的作用是在过中心拉伸弹簧内作为用于在操作机构中施加运动的手段而产生的快动作用。 当断路器处于OFF位置时，通过策略性地定位减震器与操作机构的接合，可以有效地吸收冲击，从而防止不期望的滋扰跳闸。
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公开(公告)号：US6002313A
公开(公告)日：1999-12-14
申请号：US93085
申请日：1998-06-08
CPC分类号： H01H9/342 , H01H71/025 , H01H2009/343
摘要： A circuit interrupter including an operating mechanism and separable main contacts interconnected with load and line terminals has an interface region between the top and bottom portions of the completed housing thereof, which may be of reduced cross section relative to the remainder of the side walls of the circuit interrupter for being moved or pushed outwardly under the pressure of expanding gas during a circuit interruption operation. To more easily clear or separate abutment surfaces by near lateral movement thereof to provide a small opening for pressurized gas to escape the elasticity of the side wall is utilized for this purpose. Provided that the elasticity limit is not exceeded, the wall will return to its original position sealing the internal portions of the circuit interrupter from the exterior once the gas pressure has dropped below a predetermined level.
摘要翻译： 包括操作机构的电路断路器和与负载和线路端子互连的可分离的主触点在其完成的壳体的顶部和底部之间具有界面区域，该接口区域可相对于其中的侧壁的其余部分具有减小的横截面 电路断路器在电路中断操作期间在膨胀气体的压力下被向外移动或向外推动。 为了更容易地通过其近侧向移动来清除或分离邻接表面，以提供用于加压气体逃逸侧壁的弹性的小开口用于此目的。 假设不超过弹性极限，一旦气压降到预定水平以下，壁将返回到其初始位置，将电路断路器的内部部分从外部密封。
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公开(公告)号：US06356175B1
公开(公告)日：2002-03-12
申请号：US09385717
申请日：1999-08-30
IPC分类号： H01H902
CPC分类号： H01H9/0264
摘要： A circuit interrupter including separable main contacts, an operating mechanism interconnected with the contacts, and a housing in which the contacts and the operating mechanism are disposed. The housing includes a first attaching region and a mounting cutout. A shield is provided that includes a second attaching region attaching with the first attaching region for connecting the shield to the housing. The shield includes a tab adapted for covering the mounting cutout when the connection is made.
摘要翻译： 一种电路断路器，包括可分离的主触点，与触点互连的操作机构，以及壳体，触点和操作机构设置在该壳体中。 壳体包括第一附接区域和安装切口。 提供了一种屏蔽件，其包括附接有第一附接区域的第二附接区域，用于将屏蔽件连接到壳体。 该屏蔽包括当制造连接时适于覆盖安装切口的突出部。
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公开(公告)号：US5617281A
公开(公告)日：1997-04-01
申请号：US251873
申请日：1994-06-01
摘要： A circuit controller for selectively connecting a power source to a load includes a switching mechanism, which selectively connects the power source to the load and switches a current which flows through the switching mechanism, and a substantially radiant energy dissipating positive temperature coefficient current limiter for limiting the current which flows through the switching mechanism. The switching mechanism includes a current sensor, which senses the current flowing through the switching mechanism and provides a sensed current value, and a switching controller for disconnecting the power source from the load whenever the sensed current value is above a predetermined current value. The switching mechanism may include a contactor having separable contacts which are responsive to the switching controller. The current limiter may have a first resistance which results from a first series current, and a higher second resistance which results from a second series current. The ratio of the second resistance to the first resistance may exceed 16. The current limiter may be a tungsten or, alternatively, a carbon conductor. The tungsten conductor dissipates greater than 70 percent of the energy of the short circuit current by radiation. The current limiter may further include a tubular glass cylinder which encloses the conductor therein. The cylinder may have two copper ends, each of which are electrically connected to a corresponding end of the conductor within the cylinder. The cylinder may further enclose a non-oxidizing gas, such as nitrogen, helium, argon, krypton or a halogen gas mixture. The conductor may be wound on a ceramic cylinder within the cylinder.
摘要翻译： 用于选择性地将电源连接到负载的电路控制器包括切换机构，其选择性地将电源连接到负载并切换流过开关机构的电流，以及基本辐射的能量消散正温度系数限流器，用于限制 流过开关机构的电流。 切换机构包括电流传感器，其感测流过开关机构的电流并提供感测的电流值;以及切换控制器，用于每当检测到的电流值高于预定电流值时将电源与负载断开。 开关机构可以包括具有对开关控制器作出响应的可分离触点的接触器。 电流限制器可以具有由第一串联电流产生的第一电阻和由第二串联电流产生的较高的第二电阻。 第二电阻与第一电阻的比值可以超过16.限流器可以是钨，或者也可以是碳导体。 钨导体通过辐射耗散了短路电流的70％以上的能量。 电流限制器还可以包括将导体包围在其中的管状玻璃圆筒。 圆筒可以具有两个铜端，每个铜端电连接到气缸内的导体的相应端。 气缸还可以包围非氧化气体，例如氮气，氦气，氩气，氪气或卤素气体混合物。 导体可以缠绕在气缸内的陶瓷圆筒上。
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公开(公告)号：US06259342B1
公开(公告)日：2001-07-10
申请号：US09384450
申请日：1999-08-27
申请人： Richard P Malingowski , Lance Gula , Craig A. Rodgers , Trent A. Chontas , Mark O. Zindler , Kathryn M. Palmer
发明人： Richard P Malingowski , Lance Gula , Craig A. Rodgers , Trent A. Chontas , Mark O. Zindler , Kathryn M. Palmer
IPC分类号： H01H902
CPC分类号： H01H71/525 , H01H71/501 , H01H2071/502
摘要： A circuit interrupter including a housing, separable main contacts disposed in the housing and rotatable between a contact open position and a contact closed position, and an operating mechanism disposed in the housing and interconnected with the contacts for rotating the contacts alternatively between the contact open position and the contact closed position. The operating mechanism includes a handle moveable by an operator between handle open and handle closed positions normally corresponding to and resulting in the contact open position and the contact closed position, with the handle including a protrusion. The operating mechanism further includes a crossbar assembly for rotating with the contacts as the contacts rotate between the contact open position and the contact closed position. The crossbar assembly includes a stop member that is positioned to abut against the protrusion as the handle is moved towards the handle open position when the contacts and the crossbar assembly remain in the contact closed position. The operating mechanism also includes a sideplate assembly having stops that prevent disengagement of the handle.
摘要翻译： 一种电路断路器，包括壳体，设置在壳体中并可在接触开放位置和触点闭合位置之间旋转的可分离的主触头以及设置在壳体中并与触头互连的操作机构，用于在触点打开位置 并且触点闭合位置。 操作机构包括可由操作者在手柄打开和手柄关闭位置之间移动的把手，通常对应于并导致触点打开位置和触点闭合位置，手柄包括突起。 操作机构还包括当触头在触点打开位置和触点闭合位置之间旋转时用于与触头一起旋转的横杆组件。 所述横杆组件包括止动构件，所述止动构件定位成当所述触头和所述横梁组件保持在所述触点闭合位置时手柄朝向所述手柄打开位置移动时抵靠所述突起。 操作机构还包括具有止动件的侧板组件，该止动件防止把手脱开。
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公开(公告)号：US5548261A
公开(公告)日：1996-08-20
申请号：US397807
申请日：1995-03-03
CPC分类号： H01H71/505 , H01H71/2463
摘要： An improved trip device for operating a trip mechanism which, in turn, operates a circuit breaker mechanism for opening a set of electrical contacts. The trip device includes a spring-biased actuating rod which is mechanically operated by a solenoid. The actuating rod has a notched end which is secured by a rotatable shaft at a notch portion of the shaft. The shaft has latch arms, and the core of the solenoid has projections extending into slots in the latch arms. When the solenoid receives a faulty current signal, the core moves and causes the projections to forcibly impact against the latch arms which rotates the shaft, whereby the notch portion of the shaft aligns with the notched end of the actuating rod and the actuating rod reciprocally moves into the notched portion of the shaft thereby actuating the trip mechanism.
摘要翻译： 一种用于操作跳闸机构的改进的跳闸装置，该跳闸机构进而操作用于打开一组电触头的断路器机构。 跳闸装置包括由螺线管机械操作的弹簧偏压的致动杆。 致动杆具有在轴的切口部分处由旋转轴固定的切口端。 轴具有闩锁臂，并且螺线管的芯具有延伸到闩锁臂中的槽中的突起。 当螺线管接收到故障电流信号时，芯移动并使突起强制地撞击旋转轴的闩锁臂，由此轴的切口部分与致动杆的切口端对齐，并且致动杆相互移动 进入轴的切口部分，从而致动脱扣机构。
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