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1.发明授权Molded case circuit breaker with improved high fault current interruption capability 失效具有改进的高故障电流中断能力的塑壳断路器
公开(公告)号：US4527027A
公开(公告)日：1985-07-02
申请号：US602293
申请日：1984-04-20
CPC分类号： H01H77/108 , H01H1/5822 , H01H71/0257 , H01H71/504 , H01H9/041
摘要： A contact structure (40, 44; 62, 63) is arranged to provide oppositely directed parallel current paths within a closed loop magnetic flux amplifier (46) to be directly separable under high overload current conditions, the flux amplifier (46) functioning to arrest the movable contact (62, 63) momentum. Manufacturing economies are realized by subassembling the stationary contact structure (40, 42, 44) and flux amplifier (46) and subsequently trapping one end (42a) of that assembly within the base (4a) and securing the other end with a single screw (68). The movable contact arm (62) comprises a plurality of blanked laminations assembled to provide improved contact (63) mounting and bearing (62d) surfaces. The molded case sidewalls are strengthened in the contact separation area by offsetting the parting line (PL) between cover (6) and base (4) closer to the bottom of base (4) and overlapping the thinner base sidewalls with thicker cover sidewalls at the offset (4e, 6e).
摘要翻译： 接触结构（40,44; 62,63）被布置成在闭环磁通量放大器（46）内提供相反方向的平行电流路径，以在高过载电流条件下直接分离，所述磁通放大器（46）用于阻止 活动触点（62,63）动量。 制造经济体通过将固定接触结构（40,42,44）和通量放大器（46）分组并随后将该组件的一端（42a）捕获在基座（4a）内并且用另一端固定在单个螺钉 68）。 可移动接触臂（62）包括多个冲切的叠片，组装成提供改进的接触（63）安装和轴承（62d）表面。 通过使盖（6）和基部（4）之间的分离线（PL）偏离靠近底座（4）的底部，模制壳体侧壁在接触分离区域中被增强，并且在较薄的基部侧壁与较厚的侧壁重叠 偏移（4e，6e）。
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2.发明授权Molded case circuit breaker with improved high fault current interruption capability 失效具有改进的高故障电流中断能力的塑壳断路器
公开(公告)号：US4470027A
公开(公告)日：1984-09-04
申请号：US399086
申请日：1982-07-16
CPC分类号： H01H77/108 , H01H1/5822 , H01H71/0257 , H01H71/504 , H01H9/041
摘要： A contact structure (40, 44; 62, 63) is arranged to provide oppositely directed parallel current paths within a closed loop magnetic flux amplifier (46) to be directly separable under high overload current conditions, the flux amplifier (46) functioning to arrest the movable contact (62, 63) momentum. Manufacturing economies are realized by subassembling the stationary contact structure (40, 42, 44) and flux amplifier (46) and subsequently trapping one end (42a) of that assembly within the base (4a) and securing the other end with a single screw (68). The movable contact arm (62) comprises a plurality of blanked laminations assembled to provide improved contact (63) mounting and bearing (62d) surfaces. The molded case sidewalls are strengthened in the contact separation area by offsetting the parting line (PL) between cover (6) and base (4) closer to the bottom of base (4) and overlapping the thinner base sidewalls with thicker cover sidewalls at the offset (4e, 6e).
摘要翻译： 接触结构（40,44; 62,63）被布置成在闭环磁通量放大器（46）内提供相反方向的平行电流路径，以在高过载电流条件下直接分离，所述磁通放大器（46）用于阻止 活动触点（62,63）动量。 制造经济体通过将固定接触结构（40,42,44）和通量放大器（46）分组并随后将该组件的一端（42a）捕获在基座（4a）内并且用另一端固定在单个螺钉 68）。 可移动接触臂（62）包括多个冲切的叠片，组装成提供改进的接触（63）安装和轴承（62d）表面。 通过使盖（6）和基部（4）之间的分离线（PL）偏离靠近底座（4）的底部，模制壳体侧壁在接触分离区域中被增强，并且在较薄的基部侧壁与较厚的侧壁重叠 偏移（4e，6e）。
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3.发明授权Molded case circuit breaker with interchangeable trip unit having bimetal assembly which registers with permanent heater transformer airgap 失效具有可互换跳闸单元的塑壳式断路器，具有双金属组件，其与永久性加热器变压器气隙配准
公开(公告)号：US5608367A
公开(公告)日：1997-03-04
申请号：US565764
申请日：1995-11-30
申请人： Walter M. Zoller , David S. Hunter, Jr. , Edward L. Wellner , Michael R. Larsen , Peter J. Theisen , Donald A. Link
发明人： Walter M. Zoller , David S. Hunter, Jr. , Edward L. Wellner , Michael R. Larsen , Peter J. Theisen , Donald A. Link
CPC分类号： H01H71/7418 , H01H71/7409 , H01H2071/165
摘要： In a molded case circuit breaker with an interchangeable thermalmagnetic trip unit, the C-shaped heater transformer core is permanently held in place in the casing by a load bus strap with the gap in the core facing the trip unit. When the interchangeable trip unit is inserted into the molded casing, a magnetically permeable member mounted in the trip unit is aligned in the gap in the heater transformer core. The bimetal of the trip unit is fixed at one end to an electrically conductive sleeve surrounding the magnetically permeable member and forming the secondary of the heater transformer. The length of the magnetically permeable member is selected to establish the current conditions at which the bimetal trips the circuit breaker. The bus strap has an off-set section forming a first shoulder against which one wall of the housing of the interchangeable trip unit seats, and a second shoulder against which a pole piece backed by the heater transformer core seats to fix a gap between the pole piece and the armature in the interchangeable trip unit providing the instantaneous magnetic trip function.
摘要翻译： 在具有可互换热磁脱扣单元的模制外壳断路器中，C形加热器变压器芯通过负载总线带永久地保持在壳体中的适当位置，其中芯的间隙面向跳闸单元。 当可互换跳闸单元插入模制壳体中时，安装在跳闸单元中的导磁构件在加热器变压器芯的间隙中对准。 跳闸单元的双金属一端固定在导电套筒周围，该导电套管围绕导磁部件并形成加热变压器的次级。 选择导磁构件的长度以确定双金属片跳闸断路器的电流条件。 总线带具有形成第一肩部的偏移部分，可互换跳闸单元的壳体的一个壁可抵靠第一肩部，第二肩部，由加热器变压器芯部支撑的极靴座抵靠在该第二肩部以固定杆之间的间隙 并且可互换跳闸单元中的电枢提供瞬时磁脱扣功能。
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4.发明授权Molded case circuit breaker having changing pivot locations for the operating handle 失效塑壳断路器具有用于操作把手的枢转位置
公开(公告)号：US5313033A
公开(公告)日：1994-05-17
申请号：US98995
申请日：1993-07-29
申请人： Donald A. Link , Michael R. Larsen
发明人： Donald A. Link , Michael R. Larsen
CPC分类号： H01H71/501 , H01H71/0257 , H01H71/504 , H01H73/04 , H01H77/108 , H01H1/5833 , H01H2001/5838 , H01H2071/7481 , Y10T403/32114 , Y10T74/18856 , Y10T74/18864 , Y10T74/20588
摘要： A molded case circuit breaker having an operating mechanism including a collapsible toggle linkage, an operating handle and a movable frame. The collapsible toggle linkage includes a rectangular cross section knee pin non-rotatably held within an open rectangular slot in an upper link of the linkage. The operating handle pivots about a first pivot point when moving between ON, OFF and TRIPPED positions. The operating handle pivots about a second pivot point when moving to a RESET position thereby reducing the lateral force component of the operating springs of the operating mechanism for reliable return of the handle to the OFF position. Also, bifurcated movable contact fingers are provided for pivotal movement about a fixed pin to break contact welds and a trapezoidal cross section shaft interconnects the movable contact fingers.
摘要翻译： 一种具有操作机构的模制外壳断路器，该操作机构包括可折叠肘节连杆机构，操作手柄和可动框架。 可折叠肘节连杆机构包括不可旋转地保持在连杆的上连杆中的开放矩形槽内的矩形截面膝部销。 当在ON，OFF和TRIPPED位置之间移动时，操作手柄围绕第一枢转点枢转。 当移动到RESET位置时，操作手柄围绕第二枢转点枢转，由此减小操作机构的操作弹簧的横向力分量，以便将手柄可靠地返回到OFF位置。 此外，分叉可动接触指状物被提供用于围绕固定销枢转运动以破坏接触焊缝，并且梯形横截面轴互连可动接触指。
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公开(公告)号：US5278531A
公开(公告)日：1994-01-11
申请号：US927022
申请日：1992-08-06
CPC分类号： H01H73/18 , H01H71/0207 , H01H71/521 , H01H9/342 , H01H2071/7481 , H01H71/0214 , H01H71/0257 , H01H9/34
摘要： Molded case circuit breaker having collapsible toggle linkage with rectangular cross section knee pin non-rotatably held within open rectangular slots in upper link, bifurcated movable contact fingers loosely guided for pivotal movement about fixed pin to break contact welds, helical compression springs biasing bifurcations against faces of a stationary connector, trapezoidal cross section shaft biasing shaft against a fixed corner of clamping strap and frame, increasing clamping force and increasing tool clearance, operating handle which changes pivot point moving to RESET position, reducing lateral force component of operating springs for reliable return of handle to OFF position, dual stops for movable contact fingers to spread impact forces along fingers, greater contact separation in poles not containing operating mechanism, slot motor laminations providing metal reinforcement to separate arc chamber housing which is cooperatively interlocked with base to distribute structural strength, terminal cover with arc vent extension angled downwardly, extended lug cover with second arc vent extension interlocked to terminal cover and arc chamber housing for no-fastener securement, trip unit armature pivoted in crested surface of molded pocket and connected to trip bar by wire bail for space-efficient location of parts, and accessory devices supported on and secured to trip unit housing have throw-away pin locking operator lever in correct position during installation.
摘要翻译： 具有可折叠肘节连接器的模制断路器，其具有矩形横截面膝盖销，其不可旋转地保持在上连杆中的开放矩形槽中，分叉可动接触指松动地被引导以围绕固定销枢转运动以断开接触焊缝，螺旋压缩弹簧偏置分叉到面 固定连接器，梯形横截面轴偏置轴抵靠夹紧带和框架的固定角，增加夹紧力和增加刀具间隙，操作手柄，使枢轴点移动到复位位置，减少操作弹簧的横向力分量，以获得可靠的回报 的手柄到OFF位置，双止动器可移动接触指以沿手指传播冲击力，在不包含操作机构的杆中具有更大的接触间隔，槽电机叠片提供金属加强件以与基座协作地互锁以分配结构结构 带有弧形通风口的端子盖向下倾斜，延伸的凸缘盖与第二弧形通气延伸部互锁到端子盖和电弧室外壳，用于无紧固件固定，跳闸单元电枢枢转在模制口袋的顶部表面，并通过线连接到跳闸杆 吊环空间高效的部件位置以及支撑在脱扣单元外壳上的附件装置，在安装过程中将操作杆锁定在正确的位置。
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公开(公告)号：US4937704A
公开(公告)日：1990-06-26
申请号：US263317
申请日：1988-10-27
IPC分类号： H02B1/056
CPC分类号： H02B1/056
摘要： Rejection of a twin circuit breaker at panelboard mounting positions not designated to receive a twin breaker is achieved by extending the hook of the twin breaker outwardly beyond the panelboard rail to prevent anchoring the outboard end of the twin breaker at non-designated positions, thereby indicating obviously improper installation. The rail is provided with outward extensions at designated mounting positions which do engage with the twin breaker hook to anchor the outboard end, such extension in a preferred embodiment being part of an adapter attached to the panelboard.
摘要翻译： 通过将双断路器的钩子向外延伸超过电路板导轨来实现不指定接收双断路器的电路板安装位置处的双电路断路器的阻挡，以防止将双断路器的外侧端锚定在非指定位置，从而指示 显然安装不当 导轨在指定的安装位置处设有向外的延伸部，其与双断路器钩接合以锚定外侧端，在优选实施例中，该延伸部是连接到电路板的适配器的一部分。
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公开(公告)号：US4929919A
公开(公告)日：1990-05-29
申请号：US211739
申请日：1988-06-27
IPC分类号： H01H71/24
CPC分类号： H01H71/2472
摘要： A twin unit circuit breaker has a V-shaped stainless steel combination armature pivot and bias spring, a central offset portion on the armature to increase the armature surface area that is substantially uniformly spaced to pole faces of a pole piece, a thin profile connection of an operating spring with a latch lever, and a preformed U-shaped conductor attachable in circuit between a bimetal and a flexible conductor and insertable over a pole piece from one end thereof.
摘要翻译： 双单元断路器具有V形不锈钢组合电枢枢转和偏置弹簧，电枢上的中心偏移部分，以增加与极片的极面基本上均匀间隔的电枢表面积，薄型轮廓连接 具有闩锁杆的操作弹簧和可连接在双金属和柔性导体之间的电路中的预成型的U形导体，并且可从其一端插入到极片上。
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8.发明授权Molded case circuit breaker having movable contact finger releasably locked to an operating mechanism 失效具有可移动接触指状物的可拆卸地锁定到操作机构的塑壳断路器
公开(公告)号：US5517164A
公开(公告)日：1996-05-14
申请号：US491772
申请日：1995-06-19
申请人： Walter M. Zoller , Donald A. Link , Michael R. Larsen , David S. Hunter , Edward L. Wellner , Peter J. Theisen
发明人： Walter M. Zoller , Donald A. Link , Michael R. Larsen , David S. Hunter , Edward L. Wellner , Peter J. Theisen
CPC分类号： H01H77/105 , H01H1/226
摘要： A subframe is coaxially pivotally mounted with a movable frame of the operating mechanism of a molded case circuit breaker and is locked to the frame by a bell crank pawl which is pivotally mounted on the subframe. A leaf spring assembly rigidly attached to the subframe overlies the movable contact finger to engage the same in the circuit ON condition of the circuit breaker to provide desired contact force. The bell crank pawl is released upon an incrementally small amount of initial movement of the movable contact arm in response to blow-open magnetic repulsion forces to release the movable contact finger for pivotal opening movement relative to the movable frame of the circuit breaker operating mechanism.
摘要翻译： 子框架同轴地安装有模制外壳断路器的操作机构的可移动框架，并且通过可枢转地安装在子框架上的钟形曲柄爪而锁定到框架。 刚性地附接到子车架的板簧组件覆盖着可动接触指，以将其与断路器的电路接通状态接合，以提供所需的接触力。 响应于吹出的磁性排斥力，可动接触臂的初始移动递增地少量释放钟形曲柄爪以释放可动接触指以相对于断路器操作机构的可移动框架的枢转打开运动。
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公开(公告)号：US5266760A
公开(公告)日：1993-11-30
申请号：US926484
申请日：1992-08-06
CPC分类号： H01H71/501 , H01H71/0257 , H01H71/504 , H01H73/04 , H01H77/108 , H01H1/5833 , H01H2001/5838 , H01H2071/7481 , Y10T403/32114 , Y10T74/18856 , Y10T74/18864 , Y10T74/20588
摘要： Molded case circuit breaker having collapsible toggle linkage with rectangular cross section knee pin non-rotatably held within open rectangular slots in upper link, bifurcated movable contact fingers loosely guided for pivotal movement about fixed pin to break contact welds, helical compression springs biasing bifurcations against faces of a stationary connector, trapezoidal cross section shaft biasing shaft against a fixed corner of clamping strap and frame, increasing clamping force and increasing tool clearance, operating handle which changes pivot point moving to RESET position, reducing lateral force component of operating springs for reliable return of handle to OFF position, dual stops for movable contact fingers to spread impact forces along fingers, greater contact separation in poles not containing operating mechanism, slot motor laminations providing metal reinforcement to separate arc chamber housing which is cooperatively interlocked with base to distribute structural strength, terminal cover with arc vent extension angled downwardly, extended lug cover with second arc vent extension interlocked to terminal cover and arc chamber housing for no-fastener securement, trip unit armature pivoted in crested surface of molded pocket and connected to trip bar by wire bail for space-efficient location of parts, and accessory devices supported on and secured to trip unit housing have throw-away pin locking operator lever in correct position during installation.
摘要翻译： 具有可折叠肘节连接器的模制断路器，其具有矩形横截面膝盖销，其不可旋转地保持在上连杆中的开放矩形槽中，分叉可动接触指松动地被引导以围绕固定销枢转运动以断开接触焊缝，螺旋压缩弹簧偏置分叉到面 固定连接器，梯形横截面轴偏置轴抵靠夹紧带和框架的固定角，增加夹紧力和增加刀具间隙，操作手柄，使枢轴点移动到复位位置，减少操作弹簧的横向力分量，以获得可靠的回报 的手柄到OFF位置，双止动器可移动接触指以沿手指传播冲击力，在不包含操作机构的杆中具有更大的接触间隔，槽电机叠片提供金属加强件以与基座协作地互锁以分配结构结构 带有弧形通风口的端子盖向下倾斜，延伸的凸缘盖与第二弧形通气延伸部互锁到端子盖和电弧室外壳，用于无紧固件固定，跳闸单元电枢枢转在模制口袋的顶部表面，并通过线连接到跳闸杆 吊环空间高效的部件位置以及支撑在脱扣单元外壳上的附件装置，在安装过程中将操作杆锁定在正确的位置。
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公开(公告)号：US4511772A
公开(公告)日：1985-04-16
申请号：US493479
申请日：1983-05-11
CPC分类号： H01H9/342
摘要： An arc extinguishing structure for a circuit breaker (2) wherein an arc chute is provided with a pair of transverse barrier plates (38) spaced apart to provide a centrally located opening (40) and spaced away from an upstanding wall (4a) of the breaker housing (4) so as to direct ionized gases associated with an electric arc drawn between separating contacts (8,20) through the arc plates (36) and central opening (40) against the upstanding wall (4a) thereby to be redirected along the wall (4a) and exhausted to the atmosphere through unrestricted openings (6a,4b) provided at opposite upper and lower ends of the wall. The barriers (38) project into the areas of the passageways (6a,4b) to prevent direct access to the switch contacts (8,20) through the passageways and to increase the length of the exhaust path for the arc gases.
摘要翻译： 一种用于断路器（2）的灭弧结构，其中，电弧槽设置有一对间隔开的横向阻挡板（38），以提供位于中心的开口（40）并与其直立的壁（4a）间隔开 断路器壳体（4），以便引导与通过弧形板（36）和中心开口（40）之间分离的触点（8,20）之间的电弧相关联的离子化气体抵靠在直立壁（4a）上，从而被重定向 壁（4a），并且通过设置在壁的相对的上端和下端处的不受限制的开口（6a，4b）排出到大气。 障碍物（38）突出到通道（6a，4b）的区域中，以防止通过通道直接进入开关触点（8,20），并增加电弧气体的排气路径的长度。
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