WO2011063768A1 - Multifunctional breaker accessory - Google Patents

Multifunctional breaker accessory Download PDF

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Publication number
WO2011063768A1
WO2011063768A1 PCT/CN2010/079265 CN2010079265W WO2011063768A1 WO 2011063768 A1 WO2011063768 A1 WO 2011063768A1 CN 2010079265 W CN2010079265 W CN 2010079265W WO 2011063768 A1 WO2011063768 A1 WO 2011063768A1
Authority
WO
WIPO (PCT)
Prior art keywords
push rod
armature
rod
circuit breaker
operating mechanism
Prior art date
Application number
PCT/CN2010/079265
Other languages
French (fr)
Chinese (zh)
Inventor
张晓敏
张敏海
徐波
程国星
黄燮云
俞金荣
张书瑞
Original Assignee
上海永继电气有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 上海永继电气有限公司 filed Critical 上海永继电气有限公司
Publication of WO2011063768A1 publication Critical patent/WO2011063768A1/en

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • H01H71/12Automatic release mechanisms with or without manual release
    • H01H71/46Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
    • H01H71/462Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts housed in a separate casing, juxtaposed to and having the same general contour as the main casing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H2083/208Converting under voltage release [UVR] and shunt release
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/10Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess voltage, e.g. for lightning protection
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/12Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by voltage falling below a predetermined value, e.g. for no-volt protection
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition

Definitions

  • Multifunctional circuit breaker accessories Multifunctional circuit breaker accessories
  • the invention relates to the field of low-voltage electrical appliances, and particularly relates to a multifunctional accessory capable of realizing the functions of shunt tripping, under-voltage (overvoltage) tripping and auxiliary contacts in combination with a circuit breaker. Background technique
  • circuit breaker accessories need to be attached to the circuit breaker to extend the function of the circuit breaker.
  • circuit breaker accessories are: undervoltage (or overvoltage) trip units, shunt trips and auxiliary contacts, etc., where the auxiliary contacts can be single auxiliary contacts, or both
  • the open contact also includes a double auxiliary contact of the normally closed contact.
  • These accessories can sometimes be installed inside the circuit breaker; however, for small circuit breakers, these accessories are often installed outside the circuit breaker, connected to each other by a linkage rod, and connected to the mechanism inside the circuit breaker.
  • each accessory is often a single module with a single function and a separate package.
  • multiple functions need to be extended on the circuit breaker, multiple accessories need to be installed, resulting in a large space and high cost.
  • Chinese utility model patent 02244113. 1 discloses an "automatic air circuit breaker integrated release" which integrates an undervoltage release and a shunt release, but this structure cannot achieve overvoltage tripping The function does not have the function of an auxiliary contact. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a multi-function circuit breaker accessory having both undervoltage (or overvoltage) tripping, shunt tripping and auxiliary contacts, to overcome the above-mentioned drawbacks of the prior art.
  • a multifunctional circuit breaker accessory includes a casing, the casing is provided with an auxiliary contact, and the auxiliary contact is composed of a movable contact and a static contact,
  • the movable contact is connected with a handle operating mechanism, and the handle operating mechanism is provided with a jump fastener, the jump fastener is rotatably connected to a rotating shaft, and an electromagnetic coil is further arranged in the housing, and the two ends of the electromagnetic coil are connected with The terminal and the excitation lead are connected, the top of the electromagnetic coil is provided with an armature rod, the rear end of the armature rod is hinged on the housing, and the front end of the armature rod is connected with a push rod, when the armature rod rotates around the rear end, The push rod can push the jump fastener to rotate, and the handle operating mechanism is tripped.
  • the trip fastener is provided with a connecting hole, and a connecting rod can be inserted into the connecting hole to be connected with the circuit breaker.
  • a return spring is further connected to the armature rod.
  • the push rod is a U-shaped rod, including a front arm and a rear arm, and the rear arm of the push rod is rotatably connected to the armature
  • the forearm of the push rod is inserted into a sliding slot on the inner wall of the housing, and when the forearm of the push rod slides in the sliding slot, the tripping member can be pushed to rotate.
  • the front end of the armature is provided with two pusher holes one above the other, and the rear arm of the push rod is selectively connected to one of the pusher holes.
  • the static contact comprises a normally open static contact and a normally closed static contact on both sides of the movable contact.
  • FIG 1 is an internal structure of a multifunctional schematic circuit breaker accessories t
  • Figure 2 is a schematic view of the shape of a push rod.
  • Fig. 3 is a schematic view showing the structure of the present invention with an undervoltage tripping function.
  • Fig. 4 is a schematic view showing the structure of the present invention with an overpressure tripping function.
  • a multifunctional circuit breaker accessory of the present invention comprises a housing 1 , wherein the housing 1 is provided with an auxiliary contact, and the auxiliary contact is composed of a movable contact 6 and a static contact, wherein the static contact It is divided into a normally open static contact 7 and a normally closed static contact 8, and the normally open static contact 7 and the normally closed static contact 8 are respectively located on both sides of the movable contact.
  • the movable contact 6 is connected to a handle operating mechanism 3, which belongs to the prior art and has similar mechanisms in the open circuit and the auxiliary contact attachment, and therefore will not be described in detail.
  • the handle 2 can be connected with the handle of the circuit breaker and rotate together.
  • the handle operating mechanism 3 When the handle 2 is rotated, the handle operating mechanism 3 can be rotated, and the moving contact 6 and the normally closed static contact 8 are closed by a rocker 5. After the closing, the handle operating mechanism 3 will generate a self-locking under the action of the locking buckle, so that the moving contact 6 and the normally closed static contact 8 remain closed.
  • the handle operating mechanism 3 is provided with a trip fastener 4, which rotates the trip fastener 4, so that the handle operating mechanism 3 can trip and trip.
  • An electromagnetic coil 10 is further disposed in the casing 1.
  • the two ends of the electromagnetic coil 10 are connected to the excitation lead 11 and the terminal 12 at the same time.
  • the remote control signal can be input into the electromagnetic coil 10 through the excitation lead 11 through the terminal 12
  • a voltage signal in the circuit can be input to the electromagnetic coil 10.
  • the top of the electromagnetic coil 10 is provided with an armature rod 9, and the rear end of the armature rod 9 is hinged to the casing 1.
  • the armature rod 9 When the voltage in the circuit is normal, the armature rod 9 is in a state of being sucked by the electromagnetic coil 10, and the forearm 1401 of the push rod is not in contact with the tripping member 4; when the remote control signal is applied to the electromagnetic coil 10 through the shunt lead 11 Or when the voltage in the circuit is too low, the armature rod 9 is released by the electromagnetic coil 10. Under the pulling of the return spring 15, the armature rod 9 rotates counterclockwise around its rear end, and the forearm of the push rod 14 is driven in the chute 101.
  • the jump fastener 4 is provided with a connecting hole 401, and a connecting rod (not shown) can be inserted into the connecting hole 401 to be connected with the open circuit.
  • a connecting rod (not shown) can be inserted into the connecting hole 401 to be connected with the open circuit.
  • the rear arm of the push rod 14 is mounted in the upper push rod hole 901 of the armature rod 9.
  • the armature rod 9 When the voltage in the circuit is normal, the armature rod 9 is in the In the released state, the forearm of the push rod 14 is not in contact with the trip member 4; when the remote control signal is applied to the electromagnetic coil 10 through the shunt lead 11, or when the voltage in the circuit is too high, the armature rod 9 is energized by the solenoid 10 Pulling, the armature 9 rotates clockwise around its rear end, and drives the forearm of the push rod 14 to slide forward in the sliding slot 101, pushing the tripping member 4 to rotate, so that the handle operating mechanism 3 trips and trips, and the rest of the action The above undervoltage trip is the same.

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  • Breakers (AREA)

Abstract

A multifunctional breaker accessory comprises a shell (1) inside which auxiliary contacts are arranged. The auxiliary contacts are composed of a movable contact (6) and fixed contacts (7, 8). The movable contact is connected with a handle operating mechanism (3). A jumping fastener (4) is arranged in the handle operating mechanism. The jumping fastener is connected to a rotating shaft (13) in a rotatable manner. An electromagnetic coil (10) is also provided in the shell. The leads at two ends of the electromagnetic coil are connected with a connecting terminal (12) and a shunt lead (11). An armature level (9) is provided at the top of the electromagnetic coil. The rear end of the armature level is hinged with the shell. And the front end of the armature level is connected with a push level (14). The push level pushes the jumping fastener to be rotated so as to release the handle operating mechanism when the armature level rotates around the rear end. The breaker accessory has a compact structure, a small volume and a reduced manufacturing cost, and enables under-voltage release or over-voltage release, shunt release and auxiliary contact functions and so on in one shell.

Description

多功能的断路器附件 技术领域  Multifunctional circuit breaker accessories
本发明涉及低压电器领域,具体涉及一种与断路器配合使用可实现分励脱扣、欠压(过压) 脱扣和辅助触点功能的多功能附件。 背景技术  The invention relates to the field of low-voltage electrical appliances, and particularly relates to a multifunctional accessory capable of realizing the functions of shunt tripping, under-voltage (overvoltage) tripping and auxiliary contacts in combination with a circuit breaker. Background technique
在某些应用场合, 需要在断路器上附加一些附件, 以扩展断路器的功能。现在, 比较常用 的断路器附件有: 欠压 (或过压) 脱扣器、 分励脱扣器和辅助触点等类型, 其中辅助触点可 以是单辅助触点, 也可以是既包括常开触点又包括常闭触点的双辅助触点。 这些附件有时可 以安装在断路器的内部; 但对于小型断路器而言, 这些附件往往安装在断路器的外部, 相互 之间通过连动杆串接起来, 并与断路器内部的机构相连动。  In some applications, additional accessories need to be attached to the circuit breaker to extend the function of the circuit breaker. Nowadays, the more commonly used circuit breaker accessories are: undervoltage (or overvoltage) trip units, shunt trips and auxiliary contacts, etc., where the auxiliary contacts can be single auxiliary contacts, or both The open contact also includes a double auxiliary contact of the normally closed contact. These accessories can sometimes be installed inside the circuit breaker; however, for small circuit breakers, these accessories are often installed outside the circuit breaker, connected to each other by a linkage rod, and connected to the mechanism inside the circuit breaker.
在现有技术中, 每种附件往往都是单一功能、单独封装的一个独立模块, 当断路器上需要 扩展多种功能时, 就需要安装多个附件, 造成占用空间大、 成本高的缺陷。  In the prior art, each accessory is often a single module with a single function and a separate package. When multiple functions need to be extended on the circuit breaker, multiple accessories need to be installed, resulting in a large space and high cost.
中国实用新型专利 02244113. 1公开了一种 "自动空气断路器一体化脱扣器", 它将欠压 脱扣器和分励脱扣器合为一体, 但这种结构无法实现过压脱扣的功能, 也不具备辅助触点的 功能。 发明内容  Chinese utility model patent 02244113. 1 discloses an "automatic air circuit breaker integrated release" which integrates an undervoltage release and a shunt release, but this structure cannot achieve overvoltage tripping The function does not have the function of an auxiliary contact. Summary of the invention
本发明要解决的技术问题是提供一种同时具备欠压(或过压)脱扣、分励脱扣和辅助触点 等多功能的断路器附件, 以克服现有技术的上述缺陷。  SUMMARY OF THE INVENTION The technical problem to be solved by the present invention is to provide a multi-function circuit breaker accessory having both undervoltage (or overvoltage) tripping, shunt tripping and auxiliary contacts, to overcome the above-mentioned drawbacks of the prior art.
为了解决上述技术问题, 本发明采用如下技术方案: 一种多功能的断路器附件, 包括一壳 体, 壳体内设有辅助触点, 辅助触点由动触头和静触头构成, 所述动触头与一手柄操作机构 相连接, 手柄操作机构中设有一跳扣件, 跳扣件可转动地连接在一转轴上, 所述壳体内还设 有一电磁线圈, 电磁线圈的两端引线与接线端子、 分励引线相连接, 电磁线圈的顶部设有一 根衔铁杆, 衔铁杆的后端铰接在壳体上, 衔铁杆的前端连接一推杆, 当衔铁杆绕后端转动时, 所述推杆可推动跳扣件转动, 使手柄操作机构脱扣。  In order to solve the above technical problem, the present invention adopts the following technical solution: A multifunctional circuit breaker accessory includes a casing, the casing is provided with an auxiliary contact, and the auxiliary contact is composed of a movable contact and a static contact, The movable contact is connected with a handle operating mechanism, and the handle operating mechanism is provided with a jump fastener, the jump fastener is rotatably connected to a rotating shaft, and an electromagnetic coil is further arranged in the housing, and the two ends of the electromagnetic coil are connected with The terminal and the excitation lead are connected, the top of the electromagnetic coil is provided with an armature rod, the rear end of the armature rod is hinged on the housing, and the front end of the armature rod is connected with a push rod, when the armature rod rotates around the rear end, The push rod can push the jump fastener to rotate, and the handle operating mechanism is tripped.
优选地, 所述跳扣件上设有一连接孔, 所述连接孔中可***一连动杆与断路器相连接。 优选地, 还包括一根回复弹簧与衔铁杆相连接。  Preferably, the trip fastener is provided with a connecting hole, and a connecting rod can be inserted into the connecting hole to be connected with the circuit breaker. Preferably, a return spring is further connected to the armature rod.
优选地, 所述推杆为一根 U形杆, 包括一前臂和一后臂, 推杆的后臂可转动地连接在衔铁 杆前端的一个推杆孔中, 推杆的前臂***壳体内壁上的一个滑槽中, 当推杆的前臂在滑槽中 滑动时, 可推动跳扣件转动。 Preferably, the push rod is a U-shaped rod, including a front arm and a rear arm, and the rear arm of the push rod is rotatably connected to the armature In a pusher hole at the front end of the rod, the forearm of the push rod is inserted into a sliding slot on the inner wall of the housing, and when the forearm of the push rod slides in the sliding slot, the tripping member can be pushed to rotate.
进一歩地,衔铁杆的前端一上一下设有两个推杆孔,所述推杆的后臂选择性地连接在其中 一个推杆孔中。  Further, the front end of the armature is provided with two pusher holes one above the other, and the rear arm of the push rod is selectively connected to one of the pusher holes.
优选地, 所述静触头包括位于动触头两侧的常开静触头和常闭静触头。  Preferably, the static contact comprises a normally open static contact and a normally closed static contact on both sides of the movable contact.
本发明的有益效果是: 在一个壳体内实现了欠压(或过压)脱扣、 分励脱扣和辅助触点等 多种功能, 将几种常用的断路器附件有机地集成在一起, 结构紧凑、 体积小, 可以一机多用, 降低用户成本。 附图说明  The invention has the beneficial effects that: a plurality of functions such as under-voltage (or over-voltage) tripping, shunt tripping and auxiliary contacts are realized in one housing, and several common circuit breaker accessories are organically integrated, Compact structure and small size, it can be used in one machine and reduce user cost. DRAWINGS
下面结合附图和具体实施方式对本发明作进一步详细说明  The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
图 1是本发明一种多功能的断路器附件的内部结构示意图 t FIG 1 is an internal structure of a multifunctional schematic circuit breaker accessories t
图 2是一种推杆的形状示意图。  Figure 2 is a schematic view of the shape of a push rod.
图 3是本发明具有欠压脱扣功能时的结构示意图。  Fig. 3 is a schematic view showing the structure of the present invention with an undervoltage tripping function.
图 4是本发明具有过压脱扣功能时的结构示意图。  Fig. 4 is a schematic view showing the structure of the present invention with an overpressure tripping function.
1、 壳体 101、 滑槽 2、 手柄 3、 手柄操作机构 4、 跳扣件 401、 连接孔 5、 摇杆 6、 动触头  1. Housing 101, chute 2, handle 3, handle operating mechanism 4, jumper 401, connecting hole 5, rocker 6, moving contact
7、 常开静触头 8、 常闭静触头 9、 衔铁杆 901、 推杆孔 902、 推杆孔 10、 电磁线圈 11、 分励引线 12、 接线端子 13、 转轴 14、 推杆 1401、 前臂 1402、 后臂 15、 回复弹簧 具体实施方式  7. Normally open static contact 8, normally closed static contact 9, armature rod 901, push rod hole 902, push rod hole 10, electromagnetic coil 11, shunt lead 12, terminal 13, shaft 14, push rod 1401 Forearm 1402, rear arm 15, return spring embodiment
如图 1所示, 本发明一种多功能的断路器附件包括一壳体 1, 壳体 1内设有辅助触点, 辅 助触点由动触头 6和静触头构成,其中静触头分为常开静触头 7和常闭静触头 8, 常开静触头 7和常闭静触头 8分别位于动触头的两侧。动触头 6与一手柄操作机构 3相连接,手柄操作机 构 3属于现有技术, 在断路和辅助触点附件中都有类似的机构, 因此不作详述。 手柄 2可以 与断路器的手柄连接并一起转动, 当转动手柄 2时, 可带动手柄操作机构 3转动, 并通过一 根摇杆 5带动动触头 6与常闭静触头 8闭合。 合闸后,手柄操作机构 3在锁扣的作用下会产生自锁, 使动触头 6与常闭静触头 8保持闭 合状态。 手柄操作机构 3设有一跳扣件 4, 转动跳扣件 4, 可使手柄操作机构 3脱扣跳闸。 As shown in FIG. 1 , a multifunctional circuit breaker accessory of the present invention comprises a housing 1 , wherein the housing 1 is provided with an auxiliary contact, and the auxiliary contact is composed of a movable contact 6 and a static contact, wherein the static contact It is divided into a normally open static contact 7 and a normally closed static contact 8, and the normally open static contact 7 and the normally closed static contact 8 are respectively located on both sides of the movable contact. The movable contact 6 is connected to a handle operating mechanism 3, which belongs to the prior art and has similar mechanisms in the open circuit and the auxiliary contact attachment, and therefore will not be described in detail. The handle 2 can be connected with the handle of the circuit breaker and rotate together. When the handle 2 is rotated, the handle operating mechanism 3 can be rotated, and the moving contact 6 and the normally closed static contact 8 are closed by a rocker 5. After the closing, the handle operating mechanism 3 will generate a self-locking under the action of the locking buckle, so that the moving contact 6 and the normally closed static contact 8 remain closed. The handle operating mechanism 3 is provided with a trip fastener 4, which rotates the trip fastener 4, so that the handle operating mechanism 3 can trip and trip.
壳体 1内还设有一电磁线圈 10, 电磁线圈 10的两端引线与分励引线 11及接线端子 12同 时连接, 可通过分励引线 11向电磁线圈 10中输入远程控制信号, 通过接线端子 12可向电磁 线圈 10中输入电路中的电压信号。 电磁线圈 10的顶部设有一根衔铁杆 9,衔铁杆 9的后端铰 接在壳体 1上。  An electromagnetic coil 10 is further disposed in the casing 1. The two ends of the electromagnetic coil 10 are connected to the excitation lead 11 and the terminal 12 at the same time. The remote control signal can be input into the electromagnetic coil 10 through the excitation lead 11 through the terminal 12 A voltage signal in the circuit can be input to the electromagnetic coil 10. The top of the electromagnetic coil 10 is provided with an armature rod 9, and the rear end of the armature rod 9 is hinged to the casing 1.
如图 3所示, 衔铁杆 9的前端一上一下地设有两个推杆孔 901、 902, 当本发明需要欠压 脱扣功能时, 在下面的推杆孔 902中安装一根推杆 14, 推杆 14的形状如图 2所示, 它是一根 U形杆, 包括一前臂 1401和一后臂 1402。 推杆的后臂 1402可转动地插在下面的推杆孔 902 中, 推杆的前臂 1401***壳体内壁上的一个滑槽 101中。 在衔铁杆 9与壳体之间连接一根回 复弹簧 15。 当电路中的电压正常时, 衔铁杆 9处于被电磁线圈 10吸合的状态, 推杆的前臂 1401与跳扣件 4不接触; 当通过分励引线 11对电磁线圈 10施加远程控制信号时, 或者当电 路中的电压过低时, 衔铁杆 9被电磁线圈 10释放, 在回复弹簧 15的拉动下, 衔铁杆 9绕其 后端逆时针转动, 并带动推杆 14的前臂在滑槽 101中向前滑动, 推动跳扣件 4绕转轴 13转 动, 从而使手柄操作机构 3脱扣跳闸, 动触头 6与常闭静触头 8分开并与常开静触头 7闭合, 可以输出报警信号; 跳扣件 4上设有一个连接孔 401, 连接孔 401中可***一连动杆(图中未 示出) 与断路相连接, 当跳扣件 4转动时, 同时通过该连动杆带动断路器也脱扣断开。  As shown in FIG. 3, the front end of the armature rod 9 is provided with two push rod holes 901 and 902. When the present invention requires an undervoltage trip function, a push rod is installed in the lower push rod hole 902. 14. The shape of the push rod 14 is as shown in FIG. 2, which is a U-shaped rod including a forearm 1401 and a rear arm 1402. The rear arm 1402 of the push rod is rotatably inserted in the lower push rod hole 902, and the front arm 1401 of the push rod is inserted into a sliding groove 101 on the inner wall of the housing. A return spring 15 is connected between the armature rod 9 and the housing. When the voltage in the circuit is normal, the armature rod 9 is in a state of being sucked by the electromagnetic coil 10, and the forearm 1401 of the push rod is not in contact with the tripping member 4; when the remote control signal is applied to the electromagnetic coil 10 through the shunt lead 11 Or when the voltage in the circuit is too low, the armature rod 9 is released by the electromagnetic coil 10. Under the pulling of the return spring 15, the armature rod 9 rotates counterclockwise around its rear end, and the forearm of the push rod 14 is driven in the chute 101. Sliding forward, pushing the trip fastener 4 to rotate around the rotating shaft 13, so that the handle operating mechanism 3 trips and trips, the movable contact 6 is separated from the normally closed static contact 8 and closed with the normally open static contact 7, and an alarm signal can be output. The jump fastener 4 is provided with a connecting hole 401, and a connecting rod (not shown) can be inserted into the connecting hole 401 to be connected with the open circuit. When the tripping member 4 rotates, the connecting rod is simultaneously driven. The circuit breaker is also tripped open.
如图 4所示, 当本发明需要过压脱扣功能时, 将推杆 14的后臂装在衔铁杆 9的上推杆孔 901中, 当电路中的电压正常时, 衔铁杆 9处于被释放的状态, 推杆 14的前臂与跳扣件 4不 接触; 当通过分励引线 11对电磁线圈 10施加远程控制信号时, 或者当电路中的电压过高时, 衔铁杆 9被电磁线圈 10吸合, 衔铁杆 9绕其后端顺时针转动, 并带动推杆 14的前臂在滑槽 101中向前滑动, 推动跳扣件 4转动, 从而使手柄操作机构 3脱扣跳闸, 其余动作与上述欠压 脱扣的相同。  As shown in FIG. 4, when the present invention requires an over-pressure tripping function, the rear arm of the push rod 14 is mounted in the upper push rod hole 901 of the armature rod 9. When the voltage in the circuit is normal, the armature rod 9 is in the In the released state, the forearm of the push rod 14 is not in contact with the trip member 4; when the remote control signal is applied to the electromagnetic coil 10 through the shunt lead 11, or when the voltage in the circuit is too high, the armature rod 9 is energized by the solenoid 10 Pulling, the armature 9 rotates clockwise around its rear end, and drives the forearm of the push rod 14 to slide forward in the sliding slot 101, pushing the tripping member 4 to rotate, so that the handle operating mechanism 3 trips and trips, and the rest of the action The above undervoltage trip is the same.

Claims

一种多功能的断路器附件, 包括一壳体(1) , 壳体(1) 内设有辅助触点, 辅助触点由动 触头 (6) 和静触头 (7, 8) 构成, 所述动触头 (6) 与一手柄操作机构 (3) 相连接, 手 柄操作机构 (3) 中设有一跳扣件 (4) , 跳扣件 (4) 可转动地连接在一转轴 (13) 上, 其特征是: 所述壳体 (1) 内还设有一电磁线圈 (10) , 电磁线圈 (10) 的两端引线与接 线端子 (12) 、 分励引线 (11) 相连接, 电磁线圈 (10) 的顶部设有一根衔铁杆 (9) , 衔铁杆 (9) 的后端铰接在壳体 (1) 上, 衔铁杆 (9) 的前端连接一推杆 (14) , 当衔铁 杆 (9)绕后端转动时, 所述推杆 (14) 可推动跳扣件 (4) 转动, 使手柄操作机构 (3) 脱扣。 A multifunctional circuit breaker accessory includes a casing (1), an auxiliary contact is arranged in the casing (1), and the auxiliary contact is composed of a movable contact (6) and a static contact (7, 8), The movable contact (6) is connected to a handle operating mechanism (3), and the handle operating mechanism (3) is provided with a trip fastener (4), and the trip fastener (4) is rotatably coupled to a rotating shaft (13) The upper part of the casing (1) is further provided with an electromagnetic coil (10), and the lead wires of the electromagnetic coil (10) are connected with the terminal (12) and the excitation lead (11), and electromagnetic The top of the coil (10) is provided with an armature rod (9). The rear end of the armature rod (9) is hinged to the housing (1), and the front end of the armature rod (9) is connected to a push rod (14). (9) When rotating around the rear end, the push rod (14) can push the trip fastener (4) to rotate, and the handle operating mechanism (3) is tripped.
根据权利要求 1所述的多功能的断路器附件, 其特征是: 所述跳扣件 (4) 上设有一连接 孔 (401) , 所述连接孔 (401) 中可***一连动杆与断路器相连接。 The versatile circuit breaker accessory according to claim 1, wherein: the trip fastener (4) is provided with a connecting hole (401), and a connecting rod (401) can be inserted into the connecting hole (401). The circuit breakers are connected.
根据权利要求 1所述的多功能的断路器附件, 其特征是: 还包括一根回复弹簧(15)与衔 铁杆 (9) 相连接。 The versatile circuit breaker accessory of claim 1 further comprising: a return spring (15) coupled to the armature bar (9).
根据权利要求 1所述的多功能的断路器附件, 其特征是: 所述推杆 (14) 为一根 U形杆, 包括一前臂(1401)和一后臂(1402) , 推杆的后臂 (1402)可转动地连接在衔铁杆前端 的一个推杆孔 (901, 902) 中, 推杆的前臂 (1401)***壳体内壁上的一个滑槽 (101) 中, 当推杆的前臂 (1401) 在滑槽 (101) 中滑动时, 可推动跳扣件 (4) 转动。 The multifunctional circuit breaker accessory according to claim 1, wherein: said push rod (14) is a U-shaped rod including a forearm (1401) and a rear arm (1402), and the rear of the push rod The arm (1402) is rotatably coupled to a pusher hole (901, 902) at the front end of the armature, and the forearm (1401) of the push rod is inserted into a chute (101) on the inner wall of the housing, as the forearm of the push rod (1401) When sliding in the chute (101), the trip fastener (4) can be pushed to rotate.
根据权利要求 4所述的多功能的断路器附件, 其特征是: 衔铁杆 (9) 的前端一上一下设 有两个推杆孔(901, 902),所述推杆的后臂(1402)选择性地连接在其中一个推杆孔(901, 902) 中。 The multifunctional circuit breaker accessory according to claim 4, characterized in that: the front end of the armature rod (9) is provided with two pusher holes (901, 902), and the rear arm of the push rod (1402) ) is selectively connected in one of the push rod holes (901, 902).
根据权利要求 1所述的多功能的断路器附件, 其特征是: 所述静触头包括位于动触头(6) 两侧的常开静触头 (7) 和常闭静触头 (8) 。 The multifunctional circuit breaker accessory according to claim 1, wherein: said static contact comprises a normally open static contact (7) and a normally closed static contact (8) on both sides of the movable contact (6). ).
PCT/CN2010/079265 2009-11-30 2010-11-30 Multifunctional breaker accessory WO2011063768A1 (en)

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