WO2013185421A1 - 双机构1p+n漏电断路器 - Google Patents

双机构1p+n漏电断路器 Download PDF

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Publication number
WO2013185421A1
WO2013185421A1 PCT/CN2012/082164 CN2012082164W WO2013185421A1 WO 2013185421 A1 WO2013185421 A1 WO 2013185421A1 CN 2012082164 W CN2012082164 W CN 2012082164W WO 2013185421 A1 WO2013185421 A1 WO 2013185421A1
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WO
WIPO (PCT)
Prior art keywords
pole
leakage
circuit breaker
handle
lever
Prior art date
Application number
PCT/CN2012/082164
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English (en)
French (fr)
Inventor
何邦权
Original Assignee
浙江鼎威科技有限公司
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Application filed by 浙江鼎威科技有限公司 filed Critical 浙江鼎威科技有限公司
Publication of WO2013185421A1 publication Critical patent/WO2013185421A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms

Definitions

  • the invention relates to an earth leakage circuit breaker, in particular to a double-structure ultra-small 1P+N leakage circuit breaker integrating the functions of overload, short circuit and leakage protection.
  • the 1P+N leakage circuit breaker is constantly developing, the volume is getting smaller and smaller, and the performance is also improving.
  • the existing 1P+N leakage circuit breaker has only one operating mechanism, and the circuit breaker leakage protection and short circuit protection share a tripping method.
  • the common moving iron core, the static iron core, the iron core spring, the push rod, and the short-circuit trip coil are wrapped outside the leakage trip coil.
  • the disadvantage is that the common trip push rod, the iron core and the spring reduce the short circuit and the leakage trip protection.
  • the service life, the electronic circuit board is easily interfered by the short-circuit trip coil, the reliability of the leakage protection performance is lowered, and the stability is also greatly reduced; and the leakage trip and the short-circuit trip share a core spring, which reduces the leakage trip. Sensitivity.
  • There is also a leakage tripping mechanism which is separate from the short-circuit tripping mechanism, but they occupy a large space in the upper and lower arrangement, the arc-extinguishing cover is small, the arc-extinguishing performance is low, and the breaking capacity is not high, which cannot satisfy the market. High performance product requirements.
  • the existing 1P+N leakage circuit breaker can not be assembled at the same time on both sides, which affects the promotion and application of the auxiliary function of the leakage circuit breaker.
  • the technical problem to be solved by the present invention is to provide a double-structure ultra-small 1P+N leakage circuit breaker having a small size and high breaking capacity with a double operating mechanism.
  • the present invention provides a dual-state ultra-small 1P+N leakage circuit breaker including an L-pole breaker unit, an N-pole leakage protection unit, the L-pole breaker unit and an N-pole leakage protection unit. They are independent devices and have the same independent operating mechanism.
  • the handle of the L-pole breaker unit and the handle of the N-pole leakage protection unit are linked by the shaft pin, and the tripping is broken.
  • the L-pole and the N are realized through the interlocking of the lock and the shaft pin. Extremely disconnected at the same time.
  • the L-pole breaker unit and the N-pole leakage protection unit are provided with assembling holes on the frame of the N-pole leakage protection unit to realize multi-cascade move.
  • the frame of the L-pole breaker unit and the N-pole leakage protection unit has an assembly hole, and the latch and the handle of the L-pole breaker unit and the N-pole leakage protection unit can be inserted into the shaft pin to realize linkage with the assembled accessory.
  • the L-pole breaker unit can be separated and used when the 1P breaker is used.
  • the L-pole breaker unit frame and the N-pole leakage protection unit frame have a thickness of 9 mm and a small volume.
  • the L-pole breaker unit includes an L-pole frame body, an operating mechanism, a conductive system, a short-circuit protection system, an overload protection system, and an arc-extinguishing cover, and the operating mechanism includes a handle, a handle link, a jump buckle, and a lock buckle.
  • the handle is connected to one end of the handle link, the other end of the handle link is connected with the jump buckle, the lock latched with the jump buckle is on the lever, the lever is equipped with a movable contact, and the lever is another One end is connected to the return spring.
  • the N-pole leakage protection unit comprises an N-pole frame body, an operating mechanism, a conductive system, a leakage tripping mechanism, a test reset button, a leakage lock, a test circuit, an electronic circuit board, a leakage release, a magnetic ring and an arc extinguishing cover.
  • the operating mechanism comprises a handle, a handle link, a jumper, a buckle, a lever and a return spring, the handle is connected with one end of the handle link, and the other end of the handle link is connected with the jump buckle, and is interlocked with the jump buckle
  • the latch is on the lever, and the movable contact is mounted on the lever, and the other end of the lever is connected to the return spring.
  • the conductive system includes a movable contact, a movable contact spring and a static contact, and the movable contact is mounted on the lever.
  • the overload system includes a trip lever, a bimetal, a pilot blade and a positioning piece.
  • the short circuit system includes a push rod, a yoke, a coil, a moving iron core, a static iron core, a core spring and a coil bobbin.
  • test reset button and the leakage lock constitute a function of the leakage circuit breaker having a leakage indication and a leakage reset.
  • the invention has small volume, the L pole and the N pole adopt a separate frame body, and the double operating mechanism is unique and flexible, and has high breaking capacity;
  • the invention has a leakage indication and a leakage reset function, and combines a test button and a reset indication button into One body, simple structure, small footprint, with leakage lock function makes the product more safe and reliable; 5)
  • the L pole or N pole of the invention can be assembled to form a multifunctional leakage circuit breaker.
  • FIG. 1 is a schematic perspective view of a leakage circuit breaker of the present invention
  • FIG. 2 is a schematic view showing the structure of the leakage current circuit breaker separating the L pole and the N pole;
  • FIG. 3 is a front view of the earth leakage circuit breaker of the present invention.
  • Figure 4 is a rear view of the earth leakage circuit breaker of the present invention.
  • Figure 5 is a schematic view showing the L pole of the leakage circuit breaker of the present invention.
  • Figure 6 is a schematic view showing the N pole of the leakage circuit breaker of the present invention.
  • FIG. 7 is a schematic perspective view of a double operating mechanism of an earth leakage circuit breaker according to the present invention.
  • 2-N pole leakage protection unit 2a_N pole assembly hole
  • 9-lock A 9a_ lock A shaft pin hole
  • the present invention provides a dual-structure ultra-small 1P+N leakage circuit breaker including an L-pole breaker unit 1, an N-pole leakage protection unit 2, and the L-pole breaker unit 1 and
  • the N-pole leakage protection unit 2 is an independent device, and has the same independent operation mechanism.
  • the handle A3 of the L-pole breaker unit 1 and the handle B6 of the N-pole leakage protection unit 2 are linked by the shaft pin 4, and the trip is broken.
  • the lock and the shaft pin interlock to realize the simultaneous disconnection protection of the L pole and the N pole.
  • the L pole handle A3 and the N pole handle B6 are linked by the handle shaft pin 4, the L pole lock A9 and the N pole lock B28 are linked by the shaft pin 5, and the L pole breaker unit and the N pole leakage protection unit operate in the same mechanism.
  • the two are simultaneous actions.
  • the overload, short circuit and leakage protection are all contact disconnection protection, and the force is applied to the buckle to separate the buckle from the jump buckle, so that the movable and static contacts are separated and disconnected.
  • the L-pole lock and the N-pole lock are linked by the axle pin, and the L pole and the N pole are simultaneously operated and disconnected at the same time.
  • the L-pole breaker unit 1 and the N-pole leakage protection unit 2 are provided with assembling holes la and 2a on the frame of the N-pole leakage protection unit 2 to realize multi-stage linkage.
  • the frame of the L-pole breaker unit and the N-pole leakage protection unit has an assembly hole, and the latch and the handle of the L-pole breaker unit and the N-pole leakage protection unit can be inserted into the shaft pin to realize linkage with the assembled accessory.
  • the L-pole breaker unit 1 can be separated and used when an IP breaker is used.
  • the frame of the L-pole breaker unit 1 and the frame of the N-pole leakage protection unit 2 have a thickness of 9 mm and a small volume.
  • the L-pole breaker unit 1 includes an L-pole frame body, an operating mechanism, a conductive system, a short-circuit protection system, an overload protection system, and an arc-extinguishing cover A22.
  • the operating mechanism includes a handle A3, a handle link A7, and a jump buckle.
  • A8, the lock A9, the lever Al l, the indicator 10 and the return spring A12, the handle A3 is connected with one end of the handle link A7, the other end of the handle link A7 is connected with the jumper A8, and the lock interlocked with the jumper A8
  • the buckle A9 is on the lever Al l , the lever A1 is provided with the movable contact A13, and the other end of the lever Al l is connected with the return spring A12.
  • the N-pole leakage protection unit 2 includes an N-pole frame, an operating mechanism, a conductive system, a leakage trip mechanism, a test reset button 26, a leakage lock 38, a test circuit, an electronic circuit board 32, a leakage release 36, and a magnetic circuit.
  • the other end of the rod B25 is connected to the jumper B27, and the lock B28 interlocked with the jumper B27 is on the lever B29.
  • the lever B29 is provided with a movable contact B31, and the other end of the lever B29 is connected to the return spring B30.
  • the conductive system includes a movable contact, a movable contact spring and a static contact, and the movable contact is mounted on the lever.
  • the overload system includes a trip lever 14, a bimetal 15, a pilot blade and a positioning piece 17.
  • the short circuit system includes a push rod 18, a yoke 20, a short circuit trip coil 21, a moving iron core 24, a static iron core, a core spring and a bobbin.
  • test reset button 26 and the leakage lock 38 constitute a function of the earth leakage breaker having a leakage indication and a leakage reset.
  • the frame of the L-pole breaker unit 1 has two assembling holes la
  • the frame of the N-pole leakage protection unit 2 has two assembling holes 2a
  • the locking A9 of the L-pole has a locking hole 9a for inserting the shaft pin.
  • N pole lock B28 has lock hole 28a and can also be inserted shaft pin;
  • L pole handle A3 has handle A shaft pin hole 3a can be inserted shaft pin,
  • N pole handle B6 has handle B shaft pin hole 6a can also be inserted shaft pin.
  • Undervoltage and separation can be interlocked with the lock pin through the L or N pole lock; contact alarm, auxiliary contact can pass L or N pole lock, lock pin and handle, handle pin
  • more functions can be realized by assembling the accessory leakage circuit breaker.
  • the invention integrates overload, short circuit and leakage protection, and the following details:
  • Pin 5 it will be linked with the N-pole lock B28, and the N-pole lock B28 and the jumper B27 will also be separated, so that the lever B29 loses the balance of force and rotates rapidly under the action of the return spring B30, thereby making the N-pole move.
  • the contact B31 is separated from the N pole static contact B35.
  • the short-circuit trip coil 21 When the line in the L pole is short-circuited, the short-circuit trip coil 21 generates a strong magnetic field, pulls the moving iron core 24, pushes the push rod 18 to push the movable lock A9 to separate from the jumper A8, and the balance of the lever Al l loses force.
  • a leakage current flows through the magnetic ring 34, and the magnetic ring 34 generates an electrical signal to the electronic circuit board 32, which is amplified by the electronic circuit board 32, and outputs a current to the leakage trip unit 36.
  • the buckle 36 pushes the leakage push rod 37, the leakage push rod 37 pushes the leakage lock 38, the leakage lock 38 rotates around the axis, the test reset button 26 rises and rises to the reset position, and the leakage lock 38 strikes the lock B28 and the jump button B27 is separated.
  • the lever B29 loses the balance of force and rotates rapidly under the action of the return spring B30, so that the N pole moving contact B31 is separated from the N pole static contact B35, and the N pole latch B28 is inserted with the shaft pin 5, which will be connected with the L pole.
  • the lock A9 linkage, the L-pole lock A9 and the jumper A8 will also be separated, so that the lever Al l loses the balance of force,
  • the return spring A12 is rotated rapidly, so that the L pole contact A13 is separated from the L pole static contact A19.
  • the leakage breaker handle When the leakage breaker handle is in the closed state, it is energized.
  • the test reset button 26 When the test reset button 26 is pressed (equivalent to analog leakage), the test reset button 26 moves downward, and the test reset button 26 turns on the test circuit, and the simulated leakage current flows through the test circuit. (At the end of the line), after the leakage signal is amplified by the electronic circuit board 32, a current is supplied to the leakage release 36, and the leakage release 36 acts to push the leakage push rod 37 to act on the leakage lock 38, and the leakage lock 38 is wound around the shaft.
  • the shock lock 38 hits the lock B28, so that the lock B28 is separated from the jumper B27, the lever B29 loses the balance of force, and rotates rapidly under the action of the return spring B30, thereby making the N-pole moving contact B31 and N extremely static.
  • the contact B35 is separated to achieve the leakage protection function.
  • the leakage lock 38 is rotated around the shaft, the leakage lock 38 is separated from the test reset button 26, and the test reset button 26 is moved upward by the spring, which is equivalent to the leakage state. Instructions.
  • the test reset button 26 is in the leakage indication state, the closing handle cannot be closed. Only after the leakage fault is removed, press the test reset button 26 to engage the test reset button 26 with the leakage lock 38, the switch can be closed and the line leakage detection and safety protection work again.

Abstract

一种双机构1P+N漏电断路器，包括L极断路器单元（1）、N极漏电保护单元（2），L极断路器单元与N极漏电保护单元分别为独立的装置，具有相同的独立操动机构，L极断路器单元的手柄与N极漏电保护单元的手柄通过轴销（4）联动，脱扣断开通过锁扣（9，28）与轴销联动实现L极与N极同时断开保护。该双机构1P+N漏电断路器体积小，厚度薄；使用寿命长，稳定性与可靠性更高；结构独特，L极分离出可以当1P断路器使用；具有漏电指示与漏电复位功能；L极或N极可拼装附件，组成多功能漏电断路器。

Description

说明书
双机构 1 P + N漏电断路器 技术领域
本发明涉及一种漏电断路器，特别涉及一种集过载、短路和漏电保护功能于 一体的双机构超小 1P+N漏电断路器。
背景技术
1P+N漏电断路器在不断发展，体积越来越小，性能也不断提高，现有的 1P+N 漏电断路器只有一个操动机构， 断路器漏电保护和短路保护是共用一个脱扣方 式， 共用动铁芯、静铁芯、铁芯弹簧、推杆， 短路脱扣线圈包在漏电脱扣线圈外， 其缺点是共用脱扣推杆， 铁芯， 弹簧， 降低了短路与漏电脱扣保护的使用寿命， 电子线路板容易受到短路脱扣线圈的干扰， 降低漏电保护性能的可靠性， 稳定性 也大大降低； 且漏电脱扣与短路脱扣共用一个铁芯弹簧， 降低了漏电脱扣的灵敏 度。还有一种漏电脱扣机构与短路脱扣机构是分开的， 但是它们上下排列占用了 很大空间， 灭弧罩做的很小， 灭弧性能很低， 分断能力也不高， 无法满足市场对 高性能产品需求。 现有 1P+N漏电断路器两侧面不能同时拼装附件， 影响了漏电 断路器辅助功能的推广应用。
发明内容
本发明所要解决的技术问题是要提供一种体积小、分断能力高的具有双操动 机构的双机构超小 1P+N漏电断路器。
为了解决以上的技术问题，本发明提供了一种双机构超小 1P+N漏电断路器， 包括 L极断路器单元、 N极漏电保护单元， 所述 L极断路器单元与 N极漏电保护 单元分别为独立的装置， 具有相同的独立操动机构， L极断路器单元的手柄与 N 极漏电保护单元的手柄通过轴销联动，脱扣断开通过锁扣与轴销联动实现 L极与 N极同时断开保护。
所述 L极断路器单元与 N极漏电保护单元的框体上设有拼装孔，实现多级联 动。 通过 L极断路器单元与 N极漏电保护单元的框体上有拼装孔， L极断路器单 元与 N极漏电保护单元的锁扣、 手柄可插入轴销， 与拼装附件实现联动。
L极断路器单元可分离出， 当 1P断路器使用。
所述 L极断路器单元框体和 N极漏电保护单元框体的厚度为 9mm， 体积小。 所述 L极断路器单元包括 L极框体、 操动机构、 导电系统、 短路保护系统、 过载保护系统和灭弧罩， 所述操动机构包括手柄、手柄连杆、跳扣、锁扣、杠杆、 指示件和复位弹簧，手柄与手柄连杆的一端连接，手柄连杆的另一端与跳扣相连， 与跳扣相锁的锁扣在杠杆上，杠杆上装有动触头，杠杆的另一端与复位弹簧相接。
所述 N极漏电保护单元包括 N极框体、操动机构、导电系统、漏电脱扣机构、 测试复位按钮、 漏电锁、 测试电路、 电子线路板、 漏电脱扣器、 磁环和灭弧罩； 所述操动机构包括手柄、 手柄连杆、 跳扣、 锁扣、 杠杆和复位弹簧， 手柄与手柄 连杆的一端连接， 手柄连杆的另一端与跳扣相连， 与跳扣相锁的锁扣在杠杆上， 杠杆上装有动触头， 杠杆的另一端与复位弹簧相接。
所述的导电系统包括动触头、 动触头弹簧和静触头， 动触头安装于杠杆上。 所述的过载系统包括脱扣拉杆， 双金属片， 引弧片和定位片。
所述的短路系统包括推杆， 磁轭， 线圈， 动铁芯， 静铁芯， 铁芯弹簧和线圈 骨架。
所述的测试复位按钮与漏电锁构成本漏电断路器具有漏电指示与漏电复位 的功能。
本发明的优越功效在于：
1 ) 本发明体积小， L极和 N极采用独立框体， 双操动机构独特灵活， 分断 能力高；
2 ) 使用寿命长， 稳定性与可靠性更高；
3 ) 结构独特， L极分离出可以当 1P断路器使用；
4)本发明具有漏电指示与漏电复位功能，把试验按钮与复位指示按钮结合成 一体， 结构简单， 占用空间小， 带漏电锁功能使产品更加安全可靠; 5 ) 本发明 L极或 N极可拼装附件， 组成多功能漏电断路器。 附图说明：
图 1为本发明漏电断路器立体结构示意图；
图 2为本发明漏电断路器分开 L极与 N极结构示意图； 图 3为本发明漏电断路器正视图；
图 4为本发明漏电断路器后视图；
图 5为本发明漏电断路器 L极去盖示意图；
图 6为本发明漏电断路器 N极去盖示意图；
图 7为本发明漏电断路器双操动机构立体示意图；
图中标号说明：
1- L极断路器单元； la-L极拼装孔；
2- N极漏电保护单元; 2a_N极拼装孔；
3-手柄 A; 3a_手柄 A轴销孔：
4-手柄轴销； 5-锁扣轴销；
6-手柄 B; 6a_手柄 B轴销孔；
7-手柄连杆 A; 8-跳扣 A;
9-锁扣 A; 9a_锁扣 A轴销孔；
10-指示件； 11-杠杆 ；
12-复位弹簧 A; 13-动触头 A;
14-脱扣拉杆； 15-双金属片；
16-连接片； 17-定位片：
18-推杆； 19-L极静触头；
20-磁轭； 21-短路脱扣线圈;
22-灭弧罩 A; 23-线圈壳； 24-动铁芯； 25-手柄连杆 B;
26-测试复位按钮； 27-跳扣 B;
28-锁扣 B; 28a-锁扣 B轴销孔;
29-杠杆 B; 30-复位弹簧 B;
31-动触头 B; 32-电子线路板；
33-灭弧罩 B; 34-磁环；
35-N极静触头 B; 36-漏电脱扣器；
37-漏电推杆； 38-漏电锁；
具体实施方式
请参阅附图所示， 对本发明作进一步的描述。
如图 1-图 7所示， 本发明提供了一种双机构超小 1P+N漏电断路器， 包括 L 极断路器单元 1、 N极漏电保护单元 2， 所述 L极断路器单元 1与 N极漏电保护 单元 2分别为独立的装置， 具有相同的独立操动机构， L极断路器单元 1的手柄 A3与 N极漏电保护单元 2的手柄 B6通过轴销 4联动， 脱扣断开通过锁扣与轴销 联动实现 L极与 N极同时断开保护。
L极手柄 A3与 N极手柄 B6通过手柄轴销 4联动， L极锁扣 A9与 N极锁扣 B28通过轴销 5联动， L极断路器单元与 N极漏电保护单元的操动机构是相同的， 两者是同时动作。
所述的过载、短路、漏电保护都是触头断开保护，通过作用力作用在锁扣上， 使锁扣与跳扣分离， 达到动、 静触头分离断开。 L极锁扣与 N极锁扣通过轴销联 动， 达到 L极与 N极同时动作同时断开。
所述 L极断路器单元 1与 N极漏电保护单元 2的框体上设有拼装孔 la、 2a, 实现多级联动。 通过 L极断路器单元与 N极漏电保护单元的框体上有拼装孔， L 极断路器单元与 N极漏电保护单元的锁扣、手柄可插入轴销， 与拼装附件实现联 动。 L极断路器单元 1可分离出， 当 IP断路器使用。
所述 L极断路器单元 1框体和 N极漏电保护单元 2框体的厚度为 9mm， 体积 小。
所述 L极断路器单元 1包括 L极框体、操动机构、导电系统、短路保护系统、 过载保护系统和灭弧罩 A22, 所述操动机构包括手柄 A3、手柄连杆 A7、跳扣 A8、 锁扣 A9、 杠杆 Al l、 指示件 10和复位弹簧 A12, 手柄 A3与手柄连杆 A7的一端 连接， 手柄连杆 A7的另一端与跳扣 A8相连， 与跳扣 A8相锁的锁扣 A9在杠杆 Al l上， 杠杆 Al l上装有动触头 A13, 杠杆 Al l的另一端与复位弹簧 A12相接。
所述 N极漏电保护单元 2包括 N极框体、操动机构、 导电系统、漏电脱扣机 构、 测试复位按钮 26、 漏电锁 38、 测试电路、 电子线路板 32、 漏电脱扣器 36、 磁环 34和灭弧罩 B33; 所述操动机构包括手柄 B6、 手柄连杆 B25、 跳扣 B27、 锁 扣 B28、杠杆 B29和复位弹簧 B30, 手柄 B6与手柄连杆 B25的一端连接， 手柄连 杆 B25的另一端与跳扣 B27相连， 与跳扣 B27相锁的锁扣 B28在杠杆 B29上， 杠 杆 B29上装有动触头 B31 , 杠杆 B29的另一端与复位弹簧 B30相接。
所述的导电系统包括动触头、 动触头弹簧和静触头， 动触头安装于杠杆上。 所述的过载系统包括脱扣拉杆 14， 双金属片 15， 引弧片和定位片 17。 所述的短路系统包括推杆 18， 磁轭 20， 短路脱扣线圈 21， 动铁芯 24， 静铁 芯， 铁芯弹簧和线圈骨架。
所述的测试复位按钮 26与漏电锁 38构成本漏电断路器具有漏电指示与漏电 复位的功能。
所述 L极断路器单元 1的框体有 2个拼装孔 la， N极漏电保护单元 2的框体 有 2个拼装孔 2a， L极的锁扣 A9有锁扣孔 9a可插轴销， N极的锁扣 B28有锁扣 孔 28a也可插轴销； L极的手柄 A3有手柄 A轴销孔 3a可插轴销， N极的手柄 B6 有手柄 B轴销孔 6a也可插轴销。 欠压、 分离可通过 L极或 N极锁扣与锁扣轴销 联动； 触头报警， 辅助触头可通过 L极或 N极锁扣、 锁扣轴销与手柄、 手柄轴销 实现联动， 通过拼装附件漏电断路器实现更多功能。
本发明集过载、 短路与漏电保护于一体， 以下具体说明：
一、 过载保护：
当在通电运行时，在 L极电路中会有电流运行，当这个电流大于额定电流时， 会使双金属片 15发热弯曲到一定程度会拉动脱扣拉杆 14， 脱扣拉杆 14带动锁 扣 A9与跳扣 A8分离，杠杆 11A失去力的平衡，在复位弹簧 A12作用下快速转动， 从而使 L极动触头 A13与 L极静触头 A19分离， L极锁扣 A9中插有锁扣轴销 5， 它会与 N极的锁扣 B28联动， N极的锁扣 B28与跳扣 B27也会分离， 使杠杆 B29 失去力的平衡， 在复位弹簧 B30作用下快速转动， 从而使 N极动触头 B31与 N 极静触头 B35分离。
二、 短路保护：
当 L极中线路发生短路时， 短路脱扣线圈 21会产生一个强大的磁场， 拉动 动铁芯 24， 推动推杆 18从而推动动锁扣 A9与跳扣 A8分离， 杠杆 Al l失去力的 平衡， 在复位弹簧 A12作用下快速转动， 从而使 L极动触头 A13与 L极静触头 A19分离， L极锁扣 A9中插有锁扣轴销 5， 它会与 N极的锁扣 B28联动， N极的 锁扣 B28与跳扣 B27也会分离，使杠杆 B29失去力的平衡， 在复位弹簧 B30作用 下快速转动， 从面使 N极动触头 B31与 N极静触头 B35分离。
三、 漏电保护：
当 L极或 N极发生漏电时， 泄漏电流流过磁环 34， 磁环 34会产生电信号给 电子线路板 32， 经过电子线路板 32放大处理， 输出电流给漏电脱扣器 36， 漏电 脱扣器 36推动漏电推杆 37， 漏电推杆 37推动漏电锁 38， 漏电锁 38绕轴转动， 测试复位按钮 26上升， 上升至复位位置， 漏电锁 38击打锁扣 B28与跳扣 B27 分离， 杠杆 B29失去力的平衡， 在复位弹簧 B30作用下快速转动， 从而使 N极动 触头 B31与 N极静触头 B35分离， N极锁扣 B28中插有轴销 5， 它会与 L极的锁 扣 A9联动， L极的锁扣 A9与跳扣 A8也会分离， 使杠杆 Al l失去力的平衡， 在 复位弹簧 A12作用下快速转动， 从而使 L极动触头 A13与 L极静触头 A19分离。 四、 模拟漏电试验：
当漏电断路器手柄处于闭合状态即处于通电， 当按下测试复位按钮 26 (相 当于模拟漏电）， 测试复位按钮 26向下运动， 测试复位按钮 26接通测试电路， 模拟漏电电流流过测试电路（线路末画），漏电信号经电子线路板 32放大处理后， 有电流输给漏电脱扣器 36， 漏电脱扣器 36动作推动漏电推杆 37作用在漏电锁 38， 漏电锁 38就绕轴转动， 漏电锁 38的击打锁扣 B28， 使锁扣 B28与跳扣 B27 分离， 杠杆 B29失去力的平衡， 在复位弹簧 B30作用下快速转动， 从而使 N极动 触头 B31与 N极静触头 B35分离， 从而达到漏电保护作用， 漏电锁 38在绕轴转 动时， 漏电锁 38与测试复位按钮 26卡合部分离， 测试复位按钮 26在弹簧作用 下， 向上运动， 相当于有漏电状态指示。 当测试复位按钮 26处在漏电指示状态 时， 合上手柄是不能闭合的。 只有在漏电故障解除后， 按下测试复位按钮 26， 使测试复位按钮 26与漏电锁 38卡合后，开关才能合闸并再次投入线路漏电检测 和安全保护工作。
上述为本发明的一个具体实施方式，本发明的设计构思并不局限于此， 凡利 用此构思对本发明进行实质性的改动， 均属于侵犯本发明保护范围的行为。

Claims

权利要求书
、 一种双机构超小 1P+N漏电断路器，包括 L极断路器单元、 N极漏电保护单元， 其特征在于： 所述 L极断路器单元与 N极漏电保护单元分别为独立的装置， 具有相同的独立操动机构， L极断路器单元的手柄与 N极漏电保护单元的手 柄通过轴销联动， 脱扣断开通过锁扣与轴销联动实现 L极与 N极同时断开保 护。
、 根据权利要求 1所述的双机构超小 1P+N漏电断路器， 其特征在于： 所述 L 极断路器单元与 N极漏电保护单元的框体上设有拼装孔， 实现多级联动。 、 根据权利要求 1所述的双机构超小 1P+N漏电断路器， 其特征在于： 所述 L 极断路器单元框体和 N极漏电保护单元框体的厚度为 9mm。
、 根据权利要求 1所述的双机构超小 1P+N漏电断路器， 其特征在于： 所述 L 极断路器单元包括 L极框体、 操动机构、 导电系统、 短路保护系统、 过载保 护系统和灭弧罩， 所述操动机构包括手柄、 手柄连杆、 跳扣、 锁扣、 杠杆、 指示件和复位弹簧， 手柄与手柄连杆的一端连接， 手柄连杆的另一端与跳扣 相连， 与跳扣相锁的锁扣在杠杆上， 杠杆上装有动触头， 杠杆的另一端与复 位弹簧相接。
、 根据权利要求 1所述的双机构超小 1P+N漏电断路器， 其特征在于： 所述 N 极漏电保护单元包括 N极框体、 操动机构、 导电系统、 漏电脱扣机构、 测试 复位按钮、 漏电锁、 测试电路、 电子线路板、 漏电脱扣器、 磁环和灭弧罩； 所述操动机构包括手柄、 手柄连杆、 跳扣、 锁扣、 杠杆和复位弹簧， 手柄与 手柄连杆的一端连接， 手柄连杆的另一端与跳扣相连， 与跳扣相锁的锁扣在 杠杆上， 杠杆上装有动触头， 杠杆的另一端与复位弹簧相接。
、 根据权利要求 4和 5所述的双机构超小 1P+N漏电断路器，其特征在于： 所述 的导电系统包括动触头、 动触头弹簧和静触头， 动触头安装于杠杆上。
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