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公开(公告)号：US4691182A
公开(公告)日：1987-09-01
申请号：US858137
申请日：1986-04-30
CPC分类号： H01H71/7418 , H01H2071/7481 , H01H3/50 , H01H71/164 , H01H71/2454 , H01H71/2472
摘要： A circuit breaker structure having an adjustable magnetic trip unit characterized by an insulating housing containing a circuit breaker mechanism having separable contacts and containing a trip unit comprising a magnetic device responsive to overload current conditions for separating the contacts, the magnetic device having an armature and a calibrating screw for calibrating an air gap between the armature and an associated magnet, the trip unit also including a cam for varying the tension of the spring and the cam having spaced indexing indentations and an associated ball in the frame for rolling engagement with the cam surface and for seating in any indentation to provide positive settings of the spring tension.
摘要翻译： 一种具有可调磁跳闸单元的断路器结构，其特征在于包括具有可分离触点的断路器机构的绝缘壳体，并且包含跳闸单元，该跳闸单元包括响应于用于分离触点的过载电流条件的磁性装置，所述磁性装置具有电枢和 用于校准电枢和相关磁体之间的空气间隙的校准螺钉，跳闸单元还包括用于改变弹簧的张力的凸轮和具有间隔开的分度凹口的凸轮以及与框架中的相关联的滚珠与凸轮表面的滚动接合 并为任何缩进位置提供弹性张力的积极环境。
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公开(公告)号：US4698606A
公开(公告)日：1987-10-06
申请号：US876557
申请日：1986-06-20
CPC分类号： H01H71/7427 , H01H2071/7481 , H01H83/223
摘要： A circuit interrupter responsive to abnormal currents in conductors of an electrical distribution system characterized by a circuit breaker mechanism for opening and closing separable contacts and which mechanism comprises a releasable member operable between latched and unlatched positions, trip means comprising a bimetal element and a trip bar movable to unlatch the circuit breaker mechanism and biased in the latched position, the trip bar having a surface facing and spaced from the bimetal element which surface is slanted at an oblique angle to the longitudinal axis of the trip bar, and manually adjustable knob connected to the trip bar for sliding the trip bar longitudinally to vary the space between the bimetal element and the trip bar surface in accordance with a desired thermal rating.
摘要翻译： 一种电路断路器，其响应于配电系统的导体中的异常电流，其特征在于用于打开和关闭可分离触点的断路器机构，并且该机构包括可在闩锁和解锁位置之间操作的可释放构件，跳闸装置包括双金属元件和跳闸杆 可移动以解除断路器机构并偏置在锁定位置，跳闸杆具有面对并与双金属元件间隔开的表面，该表面以与跳闸杆的纵向轴线成倾斜角度倾斜，并且手动可调节旋钮连接到 用于沿着纵向滑动跳闸杆的跳闸杆，以根据期望的热额定值改变双金属元件和跳闸杆表面之间的空间。
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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：US5436604A
公开(公告)日：1995-07-25
申请号：US257987
申请日：1994-06-10
CPC分类号： H01H71/025
摘要： A molded case for a miniature circuit breaker provides a base and a cover whose outer mating peripheral walls, which form and enclose a cavity for housing a circuit breaker mechanism, have approximately equal widths, except for the projected handle area. In this handle area, the width of the peripheral wall of the base is increased and contains an aperture for receiving the handle, and the width of the peripheral wall of the cover is decreased to receive the increased aperture area of the base. This arrangement provides for full handle support in the base for ease of assembly; high ribbing for maximum strength for short circuits; and a minimum overall thickness of about 0.500 inches.
摘要翻译： 用于微型断路器的模制壳体提供基座和盖，其外部配合的周壁形成和封闭用于容纳断路器机构的空腔，除了突出的手柄区域之外具有大致相等的宽度。 在该手柄区域中，底座的周壁的宽度增加并且包含用于接收手柄的孔，并且盖的周壁的宽度减小以接收基座的增加的开口面积。 这种布置在基座中提供了完整的手柄支撑，便于组装; 高肋最大强度为短路; 最小总厚度约为0.500英寸。
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5.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：US4121077A
公开(公告)日：1978-10-17
申请号：US811227
申请日：1977-06-29
申请人： Stephen A. Mrenna , Glenn R. Thomas
发明人： Stephen A. Mrenna , Glenn R. Thomas
CPC分类号： H01H71/04
摘要： A circuit breaker including stationary contact means and a movable contact operable between open and closed positions with respect to the stationary contact means. A contact holder engages the movable contact, and means are utilized for effecting movement of the movable contact between the open and closed positions. Indicator means indicate the position of the movable contact with respect to the stationary contact, and may also function to reset an automatic tripping mechanism.
摘要翻译： 一种断路器，包括固定接触装置和可在相对于固定接触装置的打开和关闭位置之间操作的可动触头。 接触保持器与可动触头接合，并且用于使可动触头在打开位置和闭合位置之间移动的装置。 指示装置表示可动触点相对于固定触点的位置，并且还可以起作用以复位自动跳闸机构。
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公开(公告)号：US3984801A
公开(公告)日：1976-10-05
申请号：US617618
申请日：1975-09-29
申请人： Stephen A. Mrenna , Zelko J. Kruzic
发明人： Stephen A. Mrenna , Zelko J. Kruzic
CPC分类号： H01H85/24
摘要： A fuse clip for cartridge type fuses which permits the insertion of a proper fuse while preventing the insertion of improper fuses. The clip permits the insertion of fuses having an annular groove around one of the end terminals while prohibiting the insertion of fuses without such annular groove. A main body member has a pair of flexible clamping arms which receive the cartridge-type fuse, and the clamping arms have aligned slots therein. A rejection member comprised of a C-shaped configuration, with inward extensions formed on the legs of the C, is inserted into the main body member, with the inward extensions extending through the slots of the clamping arms. The inward extensions are spaced apart a distance greater than the diameter of the annular groove, but less than the diameter of the remainder of the end terminal. The rejection member prevents the insertion of fuses unless an annular groove on the end portion is positioned between the two inward extensions.
摘要翻译： 用于盒式保险丝的保险丝夹，允许插入适当的保险丝，同时防止插入不正确的保险丝。 夹子允许插入具有围绕一个端子端子的环形槽的熔断器，同时禁止插入没有这种环形槽的保险丝。 主体构件具有一对柔性夹持臂，其接收盒式熔断器，并且夹持臂在其中具有对准的狭槽。 由形成在C的腿上的向内延伸的C形构造的排斥构件插入主体构件中，其中向内延伸部延伸穿过夹紧臂的槽。 向内的延伸部分间隔开一个大于环形槽的直径的距离，但小于终端的其余部分的直径。 排阻构件防止插入保险丝，除非端部上的环形槽位于两个向内延伸部之间。
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公开(公告)号：US5910758A
公开(公告)日：1999-06-08
申请号：US986346
申请日：1997-12-08
CPC分类号： H01H71/2454 , H01H83/20 , H01H71/1027 , H01H71/2472
摘要： A circuit breaker system with a shunt trip device is taught in which the shunt trip device occupies a miniature circuit breaker case and utilizes features of the miniature circuit breaker case except that it is provided with a coil and two-piece armature which initiates the shunt tripping operation when properly energized to thus open the separable main contacts of side-by-side mounted circuit breakers having the same intermediate axial member. A back plate is provided for the two-piece joined armature member in the central region of the toroid, solenoid or coil to assist the snug fit of the two-piece core within the central opening of the bobbin of the solenoid and to provide a low reluctance bypass for the magnetic flux crossing the gap formed by the end abutments of the two-pieces of the magnetic core.
摘要翻译： 具有并联跳闸装置的断路器系统被教导，其中并联跳闸装置占据微型断路器壳体并且利用微型断路器壳体的特征，除了它设置有线圈和两件式电枢，其启动分流脱扣 在正确通电的情况下进行操作，从而打开具有相同中间轴向构件的并排安装的断路器的可分离主触点。 在环形线圈，螺线管或线圈的中心区域中为两片式接合的电枢构件设置一个背板，以帮助两片式铁芯在螺线管的线轴的中心开口内紧密配合，并提供低 磁通绕过由两片磁芯的端部邻接部形成的间隙的磁通。
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公开(公告)号：US4286242A
公开(公告)日：1981-08-25
申请号：US75766
申请日：1979-09-17
CPC分类号： H01H9/26 , H01H2300/018
摘要： An electric control system characterized by a pair of spaced circuit breakers and a mechanical interlock therebetween, each circuit breaker having a pair of stationary and movable contacts and a trip bar for opening the contacts, and the interlock extending between the movable contact means of each movable contact of one circuit breaker and the trip bar of the other circuit breaker.
摘要翻译： 一种电气控制系统，其特征在于一对间隔开的断路器和其间的机械互锁，每个断路器具有一对静止和可动触头和用于打开触点的跳闸杆，并且互锁件在每个可移动的触点 一个断路器和另一个断路器的跳闸杆的接触。
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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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