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1.发明授权Circuit breaker with improved trip actuator and undervoltage release mechanism 失效具有改进的执行器和电源释放机构的断路器
公开(公告)号：US4013926A
公开(公告)日：1977-03-22
申请号：US595184
申请日：1975-07-11
CPC分类号： H01H71/26 , H01H83/12 , H01H71/123 , H01H71/128 , H01H83/20
摘要： A multipole circuit breaker including a latch release actuator having a trip coil and a hold-in coil coaxially surrounding a plunger and mounted within a hollow cylindrical actuator support frame. The actuator is mounted in association with a latch mechanism and includes a spring biasing the plunger toward release of the latch mechanism. The hold-in coil is responsive to voltage conditions on an external control line and serves to oppose the action of the bias spring and maintain the plunger in a position to prevent release of the latch mechanism when the voltage on the control line is above a predetermined level. The trip coil is connected to an electronic sensing circuit which activates the trip coil upon overcurrent conditions through the circuit breaker contacts to cause the trip coil to aid the action of the bias spring and overcome the action of the hold-in coil to move the plunger into engagement with the latch mechanism, effecting release of the latch mechanism and separation of the circuit breaker contacts.
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公开(公告)号：US4255732A
公开(公告)日：1981-03-10
申请号：US951941
申请日：1978-10-16
CPC分类号： H01H71/2418 , H01H2071/2427 , H01H71/2472 , H01H71/501
摘要： A molded case current limiting circuit interrupter includes a pair of pivoting contact arms each supporting a contact and being connected to wiring terminals such that current flows through the contact arms in opposite directions. One of the contact arms has a movable pivot point. A magnetic drive slot motor device is provided to generate electrodynamic contact opening force upon the contact arms during short circuit conditions. A high-speed magnetic trip device releases the operating mechanism under short circuit conditions to move the arm pivot point before the contact arms reclose. A spring latch may be provided to latch the upper contact arm in a contact-separated position during short circuit conditions until such time as the overcurrent flow through the breaker operates a thermal and magnetic trip mechanism to move an operating mechanism to the tripped position. Alternatively, a cam may be provided which is connected by a link to the upper contact arm and positioned such that upon short circuit conditions the contact opening motion of the upper contact arm caused by electrodynamic repulsion forces will cause the connecting link to rotate the cam and move the armature of the magnetic trip device to actuate the trip mechanism and release the operating mechanism to the tripped position, thereby preventing reclosing of the contact arms before the operating mechanism is able to trip. The operating mechanism includes a bracket to allow normal contact reset yet provide a positive closed contact indication if the contacts are welded together. An anti-rebound contact arm shock absorber is provided which is made of material having a high mechanical hysteresis loop to provide maximum energy dissipation.
摘要翻译： 模制外壳限流电路断路器包括一对枢转接触臂，每个支撑接触件并连接到接线端子，使得电流沿相反方向流过接触臂。 一个接触臂具有可移动的枢轴点。 提供磁驱动槽电动机装置以在短路条件下产生接触臂上的电动接触开启力。 高速磁力跳闸装置在短路条件下释放操作机构，以在接触臂重新闭合之前移动臂枢轴点。 可以提供弹簧闩锁，以在短路状态下将接触分离的位置锁定在上接触臂上，直到通过断路器的过电流流过热和跳闸机构以将操作机构移动到跳闸位置。 或者，可以设置凸轮，其通过连杆连接到上接触臂并且定位成使得在短路条件下，由电动力排斥力引起的上接触臂的接触开启运动将导致连接杆旋转凸轮， 移动磁力脱扣装置的电枢以致动脱扣机构并将操作机构释放到脱扣位置，从而防止在操作机构能够跳闸之前接触臂的重新闭合。 操作机构包括支架以允许正常的接触复位，但是如果触点被焊接在一起，则提供正的闭合接触指示。 提供了一种抗回弹接触臂减震器，其由具有高机械磁滞回线的材料制成，以提供最大的能量耗散。
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公开(公告)号：US4654614A
公开(公告)日：1987-03-31
申请号：US707616
申请日：1985-03-04
CPC分类号： H01H73/18 , H01H71/526 , H01H89/06 , H01H9/44
摘要： A current limiting solenoid operated circuit breaker characterized by an arc quenching chamber having spaced arc guide rails along opposite sides of the chamber, stationary and movable contacts in an arcing zone adjacent to the chamber and electrically connected to corresponding guide rails, and a conductor around the arcing zone to generate a transverse magnetic field through an arc to drive the arc from the contacts and along the guide rails to the arc quenching chamber.
摘要翻译： 一种限流螺线管操作的断路器，其特征在于：电弧淬火室具有沿腔室的相对侧隔开的弧形导轨，在与腔室相邻的电弧区中的静止和可动触头，并电连接到相应的导轨， 电弧区域通过电弧产生横向磁场，以将电弧从触头驱动，并沿导轨移动到灭弧室。
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公开(公告)号：US3963948A
公开(公告)日：1976-06-15
申请号：US552833
申请日：1975-02-25
摘要： A tubular soft iron member is slidably positioned within a magnet-coil assembly and adapted to respond to toggle action travel between two magnetically stable states by producing rapid changes in magnetic flux. Electrical pulses developed by the coil in response to the changes in magnetic flux are useful for control and alarm purposes.
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公开(公告)号：US4625190A
公开(公告)日：1986-11-25
申请号：US707632
申请日：1985-03-04
CPC分类号： H01H89/08 , H01H51/08 , H01H71/526
摘要： A manually and remotely operated circuit breaker for use in energy management characterized by a manually operable overcenter toggle linkage mechanism for opening and closing a circuit, electromagnetic actuating current limiting means for opening the circuit in response to a short circuit, a bimetal in response to overload currents, and electromagnetic pulse actuated means for opening and closing the circuit in response to a control signal from a remote location when the manually operable means is open.
摘要翻译： 一种用于能量管理的手动和远程操作的断路器，其特征在于用于打开和闭合电路的可手动操作的超中心肘节连杆机构，用于响应于短路而打开电路的电磁致动电流限制装置，响应于过载的双金属 电流和电磁脉冲致动装置，用于当手动操作装置打开时响应于来自远程位置的控制信号来打开和关闭电路。
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公开(公告)号：US4680562A
公开(公告)日：1987-07-14
申请号：US759719
申请日：1985-07-29
IPC分类号： H01H73/38 , H01H71/12 , H01H71/24 , H01H71/58 , H01H71/68 , H01H71/74 , H01H73/36 , H01H89/10 , H01H77/06
CPC分类号： H01H71/2418 , H01H89/10 , H01H2071/124 , H01H71/123 , H01H71/58 , H01H71/68 , H01H71/7409
摘要： An integral circuit interrupter characterized by an assemblage of interconnected electrical units including a circuit breaker, a thermal-magnetic overcurrent detector, an electromagnetic actuator, and a modular sensor; the circuit breaker comprising first and second separable contacts and a releasable lever for releasing the first contact to an open position when the detector trips the lever in response to a first predetermined current condition; the electromagnetic actuator for moving the second contact to an open position; the modular sensor for monitoring current flow and for actuating only the electromagnetic actuator in response to a second predetermined current condition; and the electromagnetic actuator being operable from a remotely controlled source.
摘要翻译： 一种集成电路断路器，其特征在于包括断路器，热磁过电流检测器，电磁致动器和模块式传感器的互连电气单元的组合; 所述断路器包括第一和第二可分离触点和可释放杆，用于当所述检测器响应于第一预定电流条件跳闸时将所述第一触点释放到打开位置; 所述电磁致动器用于将所述第二触头移动到打开位置; 所述模块化传感器用于监测电流，并仅响应于第二预定电流条件来致动所述电磁致动器; 并且电磁致动器可从远程控制的源操作。
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公开(公告)号：US4336516A
公开(公告)日：1982-06-22
申请号：US135551
申请日：1980-03-31
CPC分类号： H01H71/525 , H01H2003/3073 , H01H2300/05 , H01H3/227 , H01H71/04 , H01H71/128 , H01H71/70
摘要： A circuit breaker characterized by a toggle lock means for holding toggle springs in a charged condition ready for closing a circuit through the circuit breaker contacts when necessary.
摘要翻译： 一种断路器，其特征在于一种肘节锁定装置，用于在需要时通过所述断路器触点保持用于闭合电路的充电状态的肘节弹簧。
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公开(公告)号：US4801772A
公开(公告)日：1989-01-31
申请号：US163354
申请日：1988-03-02
摘要： A current limiting circuit interrupter with insulating wedge characterized by a circuit interrupter structure within an insulating housing and having a mechanism for opening and closing separable contacts, the contacts being separately mounted on contact mounting arms that extend in substantially parallel spaced locations to effect current limiting relationship between the arms to cause any arc forming between the opening contacts to blow out of the contacts in a direction away from the spaced contact arms, a dielectric plate-like shutter in the plane extending between the contacts and in the direction opposite the contact arms, the shutter being movable into a gap formed between the separating contacts when the contacts separate, moving mechanism for moving the shutter when the contacts open and reset structure for retracting the shutter when the contacts close.
摘要翻译： 一种具有绝缘楔形物的限流电路断路器，其特征在于绝缘壳体内具有断路器结构，并且具有用于打开和关闭可分离触点的机构，所述触头分别安装在基本上平行间隔开的位置上延伸的接触安装臂上，以实现电流限制关系 在所述臂之间，使得所述开口触点之间的任何电弧形成在远离所述间隔开的接触臂的方向上从所述触头吹出;在所述平面中延伸的所述平面中的电介质板状挡板，并且沿与所述触点臂相反的方向延伸， 当触头分开时，挡板可移动到形成在分离触头之间的间隙中，当触头打开时移动快门的移动机构以及当触点闭合时使快门收回的复位结构。
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公开(公告)号：US5146194A
公开(公告)日：1992-09-08
申请号：US414627
申请日：1989-09-26
申请人： Altenhof, Jr. James N. , Ronald W. Crookston , Walter V. Bratkowski , James W. Barkell, Jr. , Marvin D. Fisher
发明人： Altenhof, Jr. James N. , Ronald W. Crookston , Walter V. Bratkowski , James W. Barkell, Jr. , Marvin D. Fisher
CPC分类号： H01H1/5833 , H01H3/62 , H01H73/04
摘要： A molded case circuit breaker is provided with a pivotally mounted contact arm assembly, formed as a clinch joint. The contact arm assembly is a bifurcated assembly formed from two coextensive members fastened together at one end defining a surface for carrying a movable main contact. The other end of the members is bent outwardly defining spaced apart arm portions for receiving a pivot bracket. The pivot bracket is provided with an aperture and aligned with apertures in the spaced apart portions for receiving a pivot pin and defining a pivot axis. The pivot bracket is rigidly connected to a load conductor. The current that flows through the contact arm is transferred to bosses integrally formed adjacent the apertures in the pivot bracket. Screw adjustable spring members are provided for adjusting the friction and the electrical resistance between the contact surfaces of the contact arm assembly and the bosses.
摘要翻译： 模制外壳断路器设置有枢转安装的接触臂组件，其形成为夹紧接头。 接触臂组件是由两个共同延伸构件形成的分叉组件，两个共同延伸构件在一端固定，限定用于承载可移动主触点的表面。 构件的另一端向外弯曲，限定间隔开的臂部分，用于接收枢轴支架。 枢轴支架设置有孔并与间隔开的部分中的孔对齐，用于接收枢轴销并限定枢转轴线。 枢轴支架刚性地连接到负载导体。 流过接触臂的电流传递到与枢轴支架中的孔附近一体形成的凸台。 提供螺旋可调节弹簧构件用于调节接触臂组件的接触表面和凸台之间的摩擦力和电阻。
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公开(公告)号：US5023583A
公开(公告)日：1991-06-11
申请号：US260767
申请日：1988-10-21
CPC分类号： H01H71/1081 , H01H77/101
摘要： A circuit breaker contact operating structure characterized by a circuit breaker operating mechanism having separable contacts of which one is mounted on a contact carrying arm. The arm being mounted on a one leg of a U-shaped flexible conductor. A guide link is pivotally mounted and connected to the arm to maintain the contacts in alignment during their separation. The operating mechanism having a latch for latching the arm in the closed-contact position of the arm and having a trip device for unlatching the latch in response to an overcurrent condition. The mechanism link is so placed on the contact arm structure as to effect a blow-on force on the contact structure during the duration of high overcurrent. At a preset current level, the mechanism link is prevented from applying the balancing force to the contact structure, thus allowing the blow-off forces due to the current in the contact structure to separate the contacts rapidly, and to effect current limitation and subsequent circuit interruption.
摘要翻译： 一种断路器触点操作结构，其特征在于具有可分离触点的断路器操作机构，其中一个触点安装在触点承载臂上。 臂安装在U形柔性导体的一条腿上。 引导连杆可枢转地安装并连接到臂上，以便在分离过程中保持接触对齐。 操作机构具有用于将臂锁定在臂的闭合接触位置中的闩锁，并具有用于响应于过电流条件解锁闩锁的跳闸装置。 机构连杆被放置在接触臂结构上，以在高过电流持续时间内对接触结构产生吹胀力。 在预设的电流水平下，防止机构连杆对接触结构施加平衡力，从而允许由接触结构中的电流引起的吹出力快速分离触点，并实现电流限制和后续电路 中断
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