公开(公告)号：US09601295B2

公开(公告)日：2017-03-21

申请号：US14797920

申请日：2015-07-13

申请人： Siemens Industry, Inc.

发明人： John DeBoer ,  Brian Timothy McCoy ,  Guang Yang ,  John Quentin Cowans

IPC分类号： H01H71/24 ,  H01H71/40 ,  H01H71/02 ,  H02B1/04 ,  H01H71/16 ,  H01H71/32 ,  H01H71/10 ,  H01H71/12

CPC分类号： H01H71/2436 ,  H01H71/02 ,  H01H71/0271 ,  H01H71/1045 ,  H01H71/12 ,  H01H71/164 ,  H01H71/325 ,  H01H71/405 ,  H01H2071/168 ,  H01H2205/002 ,  Y10T29/49105

摘要： Embodiments provide tripping unit of a circuit breaker. The tripping unit includes a magnet, a bimetal member extending alongside of the magnet, and an armature pivotable on the magnet, wherein the armature having an engagement portion engageable with the bimetal member at a moveable end of the bimetal member. Circuit breakers including triggering mechanisms and tripping units are also disclosed, as are low-profile, electronic circuit breakers including a maximum transverse width (Wt) limited to occupy only a single standard breaker panelboard location. System and methods are provided, as are other aspects.

公开(公告)号：US20070290775A1

公开(公告)日：2007-12-20

申请号：US11796995

申请日：2007-04-30

申请人： Brian McCoy ,  Thomas Holland

发明人： Brian McCoy ,  Thomas Holland

IPC分类号： H01H75/12 ,  H01H71/00

CPC分类号： H01H71/121 ,  H01H71/405

摘要： Certain exemplary embodiments comprise a bimetal restraint adapted to restrain a bimetal of a circuit breaker from deformation beyond a predetermined threshold during a short circuit event. In certain exemplary embodiments, the bimetal restraint can be adapted to act as a shunt during the short circuit event to transfer electrical energy from an electrical energy source to a load side of the circuit breaker.

摘要翻译： 某些示例性实施例包括适于在短路事件期间抑制断路器的双金属变形超过预定阈值的双金属约束。 在某些示例性实施例中，双金属约束可以适于在短路事件期间用作分流，以将电能从电能源传递到断路器的负载侧。

公开(公告)号：US06750743B1

公开(公告)日：2004-06-15

申请号：US10436619

申请日：2003-05-13

申请人： Anantharam Subramanian ,  Ronald Ciarcia ,  Luis A. Brignoni ,  Narender Macha ,  Navin Kumar

发明人： Anantharam Subramanian ,  Ronald Ciarcia ,  Luis A. Brignoni ,  Narender Macha ,  Navin Kumar

IPC分类号： H01H7366

CPC分类号： H01H1/2058 ,  H01H9/342 ,  H01H71/0228 ,  H01H71/1027 ,  H01H71/2472 ,  H01H71/405 ,  H01H71/7418 ,  H01H2071/084

摘要： A circuit breaker for a multi-pole electrical distribution circuit includes a cassette associated with each pole in the multi-pole electrical distribution circuit. Each cassette includes a housing, a pair of electrical contacts disposed in the housing, and a thermal and magnetic trip unit supported by the housing. The housing includes a first compartment having the electrical contacts disposed therein and a second compartment having at least a portion of the thermal and magnetic trip unit disposed therein. A wall separates the first and second compartments for isolating the second compartment from gasses generated by separation of the first and second contacts. A duct adjacent to the second compartment allows the gasses to pass to an exterior portion of the housing. The housing includes a pair of opposing slots formed therein for receiving edges of a load terminal. A lever has a first end disposed proximate an end of a bimetallic element and a second end disposed proximate an armature in the magnetic assembly of the trip unit. The lever is rotated by at least one of the bimetallic element and the armature to unlatch an operating mechanism.

摘要翻译： 用于多极配电电路的断路器包括与多极配电电路中的每个极相关联的盒。 每个盒包括壳体，设置在壳体中的一对电触点，以及由壳体支撑的热和磁跳闸单元。 壳体包括具有设置在其中的电触头的第一隔室和具有设置在其中的热和磁性跳闸单元的至少一部分的第二隔室。 隔离隔离第一和第二隔室以隔离第二隔室与通过分离第一和第二接触件而产生的气体。 与第二隔室相邻的管道允许气体通过到壳体的外部部分。 壳体包括形成在其中的一对相对的槽，用于容纳负载端子的边缘。 杠杆具有靠近双金属元件的端部设置的第一端和靠近跳闸单元的磁性组件中的电枢设置的第二端。 杠杆由双金属元件和电枢中的至少一个旋转以解锁操作机构。

公开(公告)号：US06262645B1

公开(公告)日：2001-07-17

申请号：US09384958

申请日：1999-08-27

申请人： Michael McNeil ,  Mark O. Zindler ,  Amy L. Ondrey

发明人： Michael McNeil ,  Mark O. Zindler ,  Amy L. Ondrey

IPC分类号： H01H900

CPC分类号： H01H71/505 ,  H01H9/0264 ,  H01H71/0214 ,  H01H71/0221 ,  H01H71/0257 ,  H01H71/08 ,  H01H71/128 ,  H01H71/405 ,  H01H71/501 ,  H01H71/521 ,  H01H71/525 ,  H01H77/108 ,  H01H2001/5861 ,  H01H2009/305 ,  H01H2071/502

摘要： A circuit interrupter including a housing, separable main contacts disposed in the housing, and an operating mechanism disposed in the housing and interconnected with the contacts. The operating mechanism includes a cradle for moving from a first position to a second position in the event of a tripping operation and thereby causing the contacts to open. A trip mechanism is disposed in the housing and includes a rotatable trip bar assembly that, when selectively rotated, generates a tripping operation. The trip mechanism includes a rotatable latch that engages the trip bar assembly and the cradle and keeps the cradle in the first position when a tripping operation has not occurred. The trip mechanism further includes a tension member that is positioned to bias the latch in a first rotational direction.

摘要翻译： 一种电路断流器，包括壳体，设置在壳体中的可分离的主触头，以及设置在壳体中并与触点互连的操作机构。 操作机构包括用于在跳闸操作的情况下从第一位置移动到第二位置并由此使触点打开的支架。 跳闸机构设置在壳体中并且包括可旋转的跳闸杆组件，其在选择性地旋转时产生跳闸操作。 脱扣机构包括可旋转的闩锁，其接合脱扣杆组件和支架，并且当没有发生跳闸操作时将支架保持在第一位置。 脱扣机构还包括张紧构件，其被定位成沿着第一旋转方向偏压闩锁。

公开(公告)号：US20010000955A1

公开(公告)日：2001-05-10

申请号：US09738809

申请日：2000-12-15

申请人： Siemens Energy & Automation, Inc.

发明人： David A. Leone ,  James E. Ferree ,  Bernard DiMarco

IPC分类号： H01H075/12 ,  H01H077/00 ,  H01H081/00 ,  H01H083/00

CPC分类号： H01H71/2454 ,  H01H71/405 ,  H01H71/7463 ,  H01H2071/168

摘要： The circuit breaker (10) of the present invention is a molded case circuit breaker and includes a molded case (12) having a main cover (20), a first terminal (16) and a second terminal (16) mounted inside the case (12) with a stationary contact (44) electrically coupled to the first terminal (18) and a movable contact (42) electrically coupled to the second terminal (16). The movable contact (42) is coupled to an operating mechanism (40) which has a pivoting member (13) moveable between an ON position, an OFF position and a TRIPPED position. An intermediate latching mechanism (52) also is mounted in the housing (12) and is coupled to the operating mechanism (40). The intermediate latching mechanism (52) is selectively operated by a trip unit (60) which comprises a magnetic short circuit release and a thermal overload release. The trip unit (60) can be reconfigured by the addition of an inner yoke (67) nested between the flanges (71) of an outer yoke (66) and a second magnetic shield (70) can be attached to the outer yoke (66) to change the sensitivity of the trip unit (60) to the currents experienced by the circuit breaker. A particular embodiment of the circuit breaker (10) includes an interchangeable bi-metal (62) member of a copper alloy having a chemical composition of CDA null19400 and with an electrical conductivity of not more than 40%

摘要翻译： 本发明的断路器（10）是一个塑壳断路器，包括一个具有主盖（20）的模制壳体（12），安装在壳体内的第一端子（16）和第二端子（16） 电连接到第一端子（18）的固定触点（44）和电耦合到第二端子（16）的可动触头（42）。 活动触头（42）联接到操作机构（40），操作机构（40）具有在ON位置，OFF位置和TRIPPED位置之间可移动的枢转构件（13）。 中间闭锁机构（52）也安装在壳体（12）中并联接到操作机构（40）。 中间闭锁机构（52）由包括磁短路释放和热过载释放的跳闸单元（60）选择性地操作。 跳闸单元（60）可以通过添加嵌套在外磁轭（66）的凸缘（71）之间的内磁轭（67）来重新配置，并且第二磁屏蔽（70）可以附接到外磁轭 ）以将跳闸单元（60）的灵敏度改变为断路器所经历的电流。 断路器（10）的具体实施例包括铜合金的可互换的双金属（62）构件，其具有CDA＃19400的化学组成并且导电率不大于40％

公开(公告)号：US06181226B2

公开(公告)日：2001-01-30

申请号：US09434233

申请日：1999-11-05

申请人： David A. Leone ,  James E. Ferree ,  Bernard DiMarco

发明人： David A. Leone ,  James E. Ferree ,  Bernard DiMarco

IPC分类号： H01H7512

CPC分类号： H01H71/2454 ,  H01H71/405 ,  H01H71/7463 ,  H01H2071/168

摘要： A molded case circuit breaker and includes a molded case (12) having a main cover (20), a first terminal (16) and a second terminal (16) mounted inside the case (12) with a stationary contact (44) electrically coupled to the first terminal (18) and a movable contact (42) electrically coupled to the second terminal (16). The movable contact (42) is coupled to an operating mechanism (40) which has a pivoting member (13) moveable between an ON position, an OFF position and a TRIPPED position. An intermediate latching mechanism (52) also is mounted in the housing (12) and is coupled to the operating mechanism (40). The intermediate latching mechanism (52) is selectively operated by a trip unit (60) which comprises a magnetic short circuit release and a thermal overload release. The trip unit (60) can be reconfigured by the addition of an inner yoke (67) nested between the flanges (71) of an outer yoke (66) and a second magnetic shield (70) can be attached to the outer yoke (66) to change the sensitivity of the trip unit (60) to the currents experienced by the circuit breaker. A particular embodiment of the circuit breaker (10) includes an interchangeable bi-metal (62) member of a copper alloy having a chemical composition of CDA #19400 and with an electrical conductivity of not more than 40% IACS.

摘要翻译： 一种模制外壳断路器，包括具有主盖（20）的模制壳体（12），安装在壳体（12）内的第一端子（16）和第二端子（16），固定触头（44）电耦合 到第一端子（18）和电耦合到第二端子（16）的可动触头（42）。 活动触头（42）联接到操作机构（40），操作机构（40）具有在ON位置，OFF位置和TRIPPED位置之间可移动的枢转构件（13）。 中间闭锁机构（52）也安装在壳体（12）中并联接到操作机构（40）。 中间闭锁机构（52）由包括磁短路释放和热过载释放的跳闸单元（60）选择性地操作。 跳闸单元（60）可以通过添加嵌套在外磁轭（66）的凸缘（71）之间的内磁轭（67）来重新配置，并且第二磁屏蔽（70）可以附接到外磁轭 ）以将跳闸单元（60）的灵敏度改变为断路器所经历的电流。 断路器（10）的一个具体实施例包括具有CDA＃19400的化学组成并且电导率不大于40％IACS的铜合金的可互换的双金属（62）构件。

公开(公告)号：US5872495A

公开(公告)日：1999-02-16

申请号：US988060

申请日：1997-12-10

申请人： Bernard DiMarco ,  James E. Ferree ,  Robert E. Black

发明人： Bernard DiMarco ,  James E. Ferree ,  Robert E. Black

IPC分类号： H01H71/16 ,  H01H71/40 ,  H01H71/74 ,  H01H75/12

CPC分类号： H01H71/405 ,  H01H71/164 ,  H01H71/7409 ,  H01H71/7463 ,  H01H2071/749

摘要： A thermal and magnetic trip unit for a multi-pole circuit breaker includes a thermal structure having a bimetallic element and one or more heater elements. Each of the heater elements and a portion of the bimetallic element is generally "U" shaped defining a conductive path which extends from one leg of the U to the other leg. The heater elements and bimetallic element may be configured in parallel to reduce the level of current flowing through the bimetallic element and thus increase the current level at which the bimetallic element will trip the breaker. Alternatively, the heater elements may be configured in series with the bimetallic element, by inserting electrical insulators between the bimetallic element and each of the heater elements and connecting the various "U" shaped elements using a connecting bus which connects the second leg of one element to the first leg of the next element. In this configuration, the thermal structure defines a coil having one turns for each heater element and the bimetallic element. This coil may be used to implement a magnetic trip structure by inserting one or two magnetically permeable yokes, each yoke surrounding one leg of the combined thermal structure. An armature is positioned to be separated from the yoke by a gap such that, when the armature is pulled toward the yoke, it will engage the trip unit. In addition, the trip unit includes a calibration and adjustment bar that allows the gap to be adjusted as well as the force exerted on the armature by a biasing spring. The calibration and adjustment bar also allows each pole of the circuit breaker to be independently calibrated.

摘要翻译： 用于多极断路器的热和磁跳闸单元包括具有双金属元件和一个或多个加热元件的热​​结构。 每个加热器元件和双金属元件的一部分通常为“U”形，限定从U的一条腿延伸到另一条腿的导电路径。 加热器元件和双金属元件可以被并联配置以减小流过双金属元件的电流的水平，并因此增加双金属元件将使断路器跳闸的电流水平。 或者，可以通过在双金属元件和每个加热器元件之间插入电绝缘体并且使用连接总线连接各种“U”形元件来将加热元件与双金属元件串联配置，该连接总线连接一个元件的第二支脚 到下一个元素的第一条腿。 在该结构中，热结构限定了每个加热元件和双金属元件具有一匝的线圈。 该线圈可以用于通过插入一个或两个磁性可渗透的轭来实现磁脱扣结构，每个轭围绕组合的热结构的一条腿。 电枢被定位成通过间隙与轭分离，使得当电枢被拉向轭时，电枢将接合跳闸单元。 此外，跳闸单元包括校准和调节杆，其允许调节间隙以及由偏置弹簧施加在电枢上的力。 校准和调整杆还允许断路器的每个极独立校准。

公开(公告)号：US5864266A

公开(公告)日：1999-01-26

申请号：US992978

申请日：1997-12-18

申请人： Scott A. Mickelson ,  Randall L. Siebels ,  Eugene W. Wehr ,  Ardean G. Schill

发明人： Scott A. Mickelson ,  Randall L. Siebels ,  Eugene W. Wehr ,  Ardean G. Schill

IPC分类号： H01H73/22 ,  H01H71/12 ,  H01H71/40 ,  H01H75/12

CPC分类号： H01H71/121 ,  H01H71/405

摘要： A reverse deflection prevention arrangement is provided for use in a circuit breaker for preventing a bimetal from bending in a direction opposite its normal thermal deflection. The reverse deflection prevention arrangement includes a tab portion extending from a yoke and a corresponding block member disposed on the inside surface of a circuit breaker cover. The tab portion engages the block member when the bimetal is forced to deflect in the direction opposite its normal deflection. An alternate embodiment of the reverse deflection prevention arrangement includes a reinforcement member secured to one end of the bimetal. The reinforcement member strengthens and supports the bimetal so that it is prevented from bending in the direction opposite its normal thermal deflection.

摘要翻译： 提供了一种用于断路器中用于防止双金属沿与其正常热偏转相反的方向弯曲的反向偏转防止装置。 反向偏转防止装置包括从轭架延伸的突出部分和布置在断路器盖的内表面上的相应的阻挡部件。 当双金属片被迫在与其正常偏转相反的方向上偏转时，突片部分接合块构件。 反向偏转防止装置的替代实施例包括固定到双金属片的一端的加强构件。 加强构件加强并支撑双金属片，从而防止其沿与正常热偏转相反的方向弯曲。

公开(公告)号：US5329264A

公开(公告)日：1994-07-12

申请号：US43469

申请日：1993-03-25

申请人： Haruhisa Toda ,  Takafumi Kondo

发明人： Haruhisa Toda ,  Takafumi Kondo

IPC分类号： H01H73/36 ,  H01H71/40 ,  H01H75/12

CPC分类号： H01H71/405

摘要： An overcurrent tripping device which is included in a circuit breaker is constituted by a pre-assembly unit of a holder with a conductor, a fixed core for generating a magnetic attraction force responding to an overcurrent, and a bimetal warping responding to the temperature rise of the conductor, and an operation arm rotatably borne on the holder and having a moving core which is to be attracted to the fixed core by the magnetic attraction force.

摘要翻译： 包括在断路器中的过电流跳闸装置由具有导体的保持器的预组装单元，用于产生响应于过电流的磁吸引力的固定芯和响应于温度上升的双金属翘曲构成 导体和可旋转地支撑在保持器上并具有通过磁吸引力吸引到固定芯的移动芯的操作臂。

公开(公告)号：US5237297A

公开(公告)日：1993-08-17

申请号：US909515

申请日：1992-07-06

申请人： Alfred Ellington ,  Robert B. Steel ,  James H. Leonard

发明人： Alfred Ellington ,  Robert B. Steel ,  James H. Leonard

IPC分类号： H01H71/40

CPC分类号： H01H71/405

摘要： An improved tripping mechanism for use in a circuit breaker wherein magnetic tripping is responsive to low levels of overcurrent by limiting the depth of engagement of a trip lever of a cradle with respect to the latch engagement tab of the armature. Responsiveness of the magnetic tripping is enhanced by positioning of the magnetic yoke adjacent to the bimetallic member while at the same time being movable with respect to the bimetallic member. Positioning the magnetic member independently of the position of the bimetallic member facilitates having magnetic tripping responsive to low overcurrent conditions while at the same time allowing thermal tripping by movement of the bimetallic member to be fully maintained.

摘要翻译： 一种用于断路器的改进的跳闸机构，其中磁性跳闸通过限制托架的脱扣杆相对于电枢的闩锁接合突片的接合深度来响应低水平的过电流。 通过将磁轭邻近双金属构件定位，同时可以相对于双金属构件移动，增强了磁性跳闸的响应性。 独立于双金属构件的位置定位磁性构件有助于响应于低过电流条件而具有磁性跳闸，同时允许通过双金属构件的运动进行热保护以完全保持。