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公开(公告)号：US4030060A
公开(公告)日：1977-06-14
申请号：US661592
申请日：1976-02-26
CPC分类号： H01H71/7427 , H01H71/525
摘要： A multi-pole circuit breaker characterized by a circuit breaker structure including a releasable arm for opening a circuit through the breaker, a bimetal element for each pole which is responsive to an overload current condition to effect release of the releasable arm, a latch bracket and a trip bar coaxially mounted and having an adjustment screw to vary the position of the trip bar in relation to the bimetal to change thermal rating of the circuit breaker.
摘要翻译： 一种多极断路器，其特征在于断路器结构，其包括用于通过断路器打开电路的可释放臂，用于每个极的双金属元件，其响应于过载电流状态以释放可释放臂，闩锁支架和 跳闸杆同轴地安装并具有调节螺钉，以改变跳闸杆相对于双金属片的位置，以改变断路器的热额定值。
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2.发明授权Molded case circuit breaker apparatus having trip bar with flexible armature interconnection 失效具有跳闸杆的塑壳式断路器装置，具有柔性电枢互连
公开(公告)号：US4503408A
公开(公告)日：1985-03-05
申请号：US440681
申请日：1982-11-10
CPC分类号： H01H71/40
摘要： A molded case circuit breaker apparatus is taught with an operating mechanism which is triggered in response to the movement of a trip bar. The trip bar in turn is responsive to current flowing in the main terminals of the circuit breaker apparatus. The trip bar is responsive to electrothermal conditions as a gradual overload increases. It is also responsive to a short circuit condition due to a magnetic reaction between an armature and an electromagnet. The armature is flexibly attached to the trip bar for flexible movement in one direction and non-flexible movement in the other direction so that a short circuit may be accommodated by a relatively small air gap by non-flexible movement of the armature and the trip bar to cause a tripping operation. On the other hand, a wide range of angular movement is available for a high degree of calibrated reaction to a wide range of overload currents because the armature member is flexibly attached to the trip bar in one direction and is held stationary against the facing magnet even after the trip bar continues movement for an otherwise non-allowable increment of electrothermal calibration.
摘要翻译： 教导了一种模制外壳断路器装置，其具有响应于跳闸杆的移动而被触发的操作机构。 跳闸杆又响应于在断路器装置的主端子中流动的电流。 跳闸条响应于电热条件，逐渐过载增加。 它也由于电枢和电磁体之间的磁反应而对短路状况产生响应。 电枢被灵活地附接到跳闸杆，用于在一个方向上的柔性运动，而在另一个方向上是非柔性的运动，使得可以通过电枢和跳闸杆的非柔性运动由较小的气隙容纳短路 导致跳闸操作。 另一方面，宽范围的角运动可用于对宽范围的过载电流进行高度的校准反应，因为电枢构件在一个方向上柔性地附接到跳闸杆，并且保持静止抵靠面对的磁体，甚至 在跳闸条继续移动之后，否则不允许的电热校准增量。
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公开(公告)号：US4656444A
公开(公告)日：1987-04-07
申请号：US766303
申请日：1985-08-16
申请人： Jere L. McKee , Glenn R. Thomas , Charles E. Haugh , Lance Gula
发明人： Jere L. McKee , Glenn R. Thomas , Charles E. Haugh , Lance Gula
CPC分类号： H01H77/101 , H01H77/104 , H01H77/107
摘要： A circuit breaker with a force generate shunt characterized by a circuit breaker structure between spaced conductors with a fixed contact on one conductor and a movable contact on a contact arm that is movable between open and closed positions. A flexible shunt connected between the arm and the other conductor which shunt includes folded-over shunt portions that generate repulsion magnetic forces for pressing the closed contacts together and for expediting the contact arm open.
摘要翻译： 具有力的断路器产生分流器，其特征在于在间隔开的导体之间的断路器结构，在一个导体上具有固定触点，并且触点臂上的可移动触点可在打开和关闭位置之间移动。 连接在臂和分流器的另一个导体之间的柔性分流器包括折叠分流部分，其产生用于将闭合触点压在一起的排斥磁力并且用于加速接触臂打开。
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4.发明授权Molded case circuit breaker with a movable electrical contact positioned by a camming leaf spring 失效具有通过凸轮板簧定位的可移动电触点的塑壳断路器
公开(公告)号：US4645890A
公开(公告)日：1987-02-24
申请号：US756490
申请日：1985-07-19
申请人： Charles R. Paton , Charles E. Haugh
发明人： Charles R. Paton , Charles E. Haugh
CPC分类号： H01H77/104
摘要： A molded case circuit breaker includes a movable upper electrical contact carried by a contact member having an end portion with an arcuate cam surface formed thereon for engaging an outwardly projecting cam surface of a leaf spring. The leaf spring is secured to and disposed around an enlarged portion of a rotatable cross-bar of the operating mechanism of the circuit breaker. The leaf spring has an outwardly protruding cam surface and is mechanically configured to provide sufficient biasing force to the end portion of the movable upper electrical contact member to enable the upper electrical contact member and upper contact to move in unison with the cross-bar during normal operation of the breaker. Upon the occurrence of a high level short circuit or fault current of sufficient magnitude, the upper electrical contact rotate member and upper and the arcuate cam surface thereof is moved against the then stationary cam surface of the leaf spring. The arcuate cam surface of the leaf spring and the arcuate cam surface of the end portion of the contact member are configured to provide decreased biasing force as the upper electrical contact member rotates to its BLOWN-OPEN position. A detent or groove is formed along the arcuate cam surface of the end portion of the contacts member for receiving the outwardly projecting cam surface of the leaf spring to retain the movable upper electrical contact and contact member in a BLOWN-OPEN position, thereby minimizing the possibility of contact restrike.
摘要翻译： 模制外壳断路器包括由接触构件承载的可移动上部电触点，该触头构件具有形成在其上的弓形凸轮表面的端部，用于接合板簧的向外突出的凸轮表面。 板簧被固定到断路器的操作机构的可旋转横杆的放大部分周围。 板簧具有向外突出的凸轮表面，并且机械地构造成向可动上电接触构件的端部提供足够的偏置力，以使上电接触构件和上接触件能够在正常情况下与横杆一致地移动 断路器的运行。 在发生足够大的高电平短路或故障电流的情况下，上部电接触旋转构件并且其上部的弓形凸轮表面与板簧的静止的凸轮表面相抵接。 板簧的弧形凸轮表面和接触构件的端部的弓形凸轮表面构造成当上电接触构件旋转到其打开位置时提供降低的偏压力。 沿触头构件的端部的弧形凸轮表面形成一个止动器或凹槽，用于接收板簧向外突出的凸轮表面，以将可动上电触点和接触件保持在BLOWN-OPEN位置，从而最小化 接触再起弧的可能性
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公开(公告)号：US4302740A
公开(公告)日：1981-11-24
申请号：US102047
申请日：1979-12-10
CPC分类号： H01H71/525 , H01H2300/05
摘要： A circuit interrupter mechanism comprising an overcenter toggle linkage and a releasable toggle latch means for latching the linkage in a partially closed position.
摘要翻译： 一种电路断续器机构，包括一个超中心肘节联动装置和一个用于将连杆机构锁定在部分关闭位置的可释放肘节闩锁装置。
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