CN106229941A - 具有定时自检功能的快速动作式漏电检测保护电路 - Google Patents

具有定时自检功能的快速动作式漏电检测保护电路 Download PDF

Info

Publication number
CN106229941A
CN106229941A CN201610789501.1A CN201610789501A CN106229941A CN 106229941 A CN106229941 A CN 106229941A CN 201610789501 A CN201610789501 A CN 201610789501A CN 106229941 A CN106229941 A CN 106229941A
Authority
CN
China
Prior art keywords
live wire
contact bar
switch
self
power
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN201610789501.1A
Other languages
English (en)
Other versions
CN106229941B (zh
Inventor
黄金和
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN201610789501.1A priority Critical patent/CN106229941B/zh
Publication of CN106229941A publication Critical patent/CN106229941A/zh
Priority to US15/691,999 priority patent/US10209287B2/en
Application granted granted Critical
Publication of CN106229941B publication Critical patent/CN106229941B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G01R15/183—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core
    • G01R15/185—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core with compensation or feedback windings or interacting coils, e.g. 0-flux sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/44—Testing lamps
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/16—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/16—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass
    • H02H3/162—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass for ac systems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/34—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system
    • H02H3/347—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system using summation current transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/2806—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps without electrodes in the vessel, e.g. surface discharge lamps, electrodeless discharge lamps
    • H05B41/2813—Arrangements for protecting lamps or circuits against abnormal operating conditions

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Breakers (AREA)

Abstract

本发明提供一种具有定时自检功能的快速动作式漏电检测保护电路，复位按钮联动设有主回路开关、模拟通路开关及自检通路开关；模拟通路开关包括前端常开开关以及后端常开开关；自检通路开关在复位成功时保持闭合；主回路开关包括动接触杆、电源输入端静接触端以及电源用户端静接触端，动接触杆复位按钮复位成功时与电源输入端静接触端及电源用户端静接触端闭合，还设置有升降接触杆，升火线升降接触杆在正确接线时将电源负载端火线端与电源用户端火线端连为一体，火线升降接触杆在反接线时将电源用户端火线端与电源输入端火线端连为一体。本发明的有益效果：主回路开关摒弃了跷跷板式结构，加工、装配精度要求大大降低，可靠性大大提高。

Description

具有定时自检功能的快速动作式漏电检测保护电路
技术领域
本发明涉及漏电保护领域，具体是指一种具有定时自检功能的快速动作式漏电检测保护电路。
背景技术
申请号为201310452956.0 的发明专利申请公开的漏电检测保护电路包括电源输入端、电源用户端、电源输出端、复位按钮、与复位按钮联动的主回路开关、用于检测漏电流和低电阻故障的双感应线圈、通过磁场作用驱动内置铁芯配合机械结构使复位按钮带动主回路开关闭合/ 断开的脱扣线圈、为模拟漏电流提供通路的可控硅及通过双感应线圈检测结果可知可控硅通断的控制芯片以及定时自检电路，其设置有一与复位按钮联动的常开开关K1，在出厂状态按下复位按钮时带动常开开关K1 闭合，模拟漏电流产生电阻R7 将电源输入端短接，控制芯片通过双感应线圈检测到漏电流，驱动可控硅导通，脱扣线圈得电后铁芯移动带动漏电保护插座内的锁扣移动，复位按钮导向柱被锁块锁孔勾扣定位后上升带动主回路开关闭合；该电路在寿命未终止状态下，若反接线（市电电源错误接至电源输出端）则通过控制芯片、可控硅等机构断开连接电源输出端和电源用户端的常闭开关，若控制芯片、可控硅等机构已经损坏则无法进行反接线保护。申请号为201410112524.X 发明专利申请公开了一种兼具定时自检和反接线保护功能的漏电检测保护电路，为实现反接线保护功能并保证电源输入端、电源输出端、电源用户端三者中始终有两者保持导通即始终为两组相互隔离的导体，其电路结构除主回路开关外还设置有常闭开关（K3B-1、KR3B-2）等，结构较复杂，装配精度要求高，较为费时费力。申请号为201410367800.7的发明专利申请解决了上述问题，但相应地，也存在一些不足：设置两个脱扣线圈，结构较复杂，加工和装配都较为不便。
申请号为201410667103.3的发明专利申请针对上述技术问题提供了解决方案，但该方案存在以下不足：1. 主回路开关动接触杆两端都具有动触点，中间具有跷跷板式结构，加工、装配和动作精度要求都比较高，内压测试（连续通断数千次）时容易导致接触不良，存在故障隐患；2. 跷跷板式动接触杆下方连接有柔性导线，柔性导线自身动作可靠性难以保证并且会影响跷跷板式动接触杆动作精度；3.反接线回路中没有设置限流电路，反接线时如果主回路开关不能及时跳闸可能因温升导致元器件（例如脱扣线圈）损坏；4.常闭的反接线通路开关K5在复位按钮按下时其动接触杆受压断开而在复位按钮离手后保持闭合，其动作精度要求高，加工及装配不易。
发明内容
本发明针对以上问题，提供一种具有定时自检功能的快速动作式漏电检测保护电路。
本发明的发明目的通过以下方案实现：具有定时自检功能的快速动作式漏电检测保护电路，包括电源输入端、电源负载端、电源用户端、用于检测漏电流及低电阻故障的双感应线圈（T1、T2）、控制芯片IC1、内置有铁芯的脱扣线圈L1、复位按钮、自检芯片IC2及自检可控硅SCR，其特征在于：复位按钮联动设置有主回路开关、模拟通路开关以及常开的自检通路开关K8；模拟通路开关包括前端常开开关K7以及后端常开开关K9，前端常开开关K7连接于电源输入端其中一相和脱扣线圈L1其中一端之间，后端常开开关K9连接于穿过双感应线圈（T1、T2）的电源输入端其中一相和脱扣线圈L1另一端之间，前端常开开关K7和后端常开开关K9均在复位按钮按下时碰接闭合使得脱扣线圈L1形成穿过双感应线圈（T1、T2）的回路；自检通路开关K8一端与电源输入端火线端相连，另一端通过自检可控硅SCR接地，自检通路开关K8在复位成功时保持闭合；主回路开关包括一对从电源负载端引出的动接触杆、一对从穿过双感应线圈的电源输入端引出的静接触端以及一对从电源用户端引出的静接触端，一对动接触杆与穿过双感应线圈的电源输入端引出的一对静接触端接触形成在复位按钮复位成功时闭合的常开开关（K1、K4），一对动接触杆与电源用户端引出的静接触端形成在复位按钮复位成功时接触闭合的常开开关（K2、K5），一对动接触杆还设置有带弹性复位机构且在自然状态下一端与对应动接触杆接触而在动接触杆动作时分离的一对升降接触杆，电源输入端火线端和电源用户端火线端各引出一静接触杆，一对升降接触杆中的火线升降接触杆始终与电源用户端火线端引出的静接触杆导通并通过火线动接触杆形成常闭开关K3将电源负载端火线端与电源用户端火线端连为一体，火线升降接触杆在反接线时与电源输入端火线端引出的静接触杆导通并与火线动接触杆分离将电源用户端火线端与电源输入端火线端连为一体。
进一步地，模拟通路开关的前端常开开关K7与自检通路开关K8共用一动接触杆，前端常开开关K7的静接触端经脱扣线圈L1、后端常开开关K9引至穿过双感应线圈（T1、T2）的电源输入端零线端。
进一步地，脱扣线圈L1回路上还连接有一限流二极管D1。
进一步地，还包括至少由一在复位成功时常亮并在脱扣线圈L1故障时熄灭的指示灯LED组成的指示电路，指示灯LED经过脱扣线圈L1及主回路开关与电源输入端形成穿过双感应线圈（T1、T2）的回路。
进一步地，限流二极管D1的阴极经模拟通路开关的后端常开开关K9与穿过双感应线圈（T1、T2）的电源输入端零线端相连，限流二极管D1的阳极经脱扣线圈L1与电源用户端火线端相连；一对升降接触杆中的零线升降接触杆通过主回路开关的零线动接触杆形成在反接线时断开的常闭开关K6。
进一步地， 电源用户端火线端引出的静接触杆上连接有限流二极管D1，限流二极管D1的阳极分作两路分别与电源用户端火线端以及脱扣线圈L1的输入端相连，限流二极管D1的阴极经一对升降接触杆中的火线升降接触杆、主回路开关的火线动接触杆与电源负载端火线端相连。
进一步地，指示电路还包括二极管D1和限流电阻R8，二极管D1同时作为脱扣线圈回路的限流二极管，二极管D1阳极与脱扣线圈L1的输出端相连，二极管D1阴极还经过模拟通路开关中的后端常开开关K9与穿过双感应线圈（T1、T2）的电源输入端零线端相连。
进一步地，指示电路还包括限流电阻R8，指示灯LED阴极经限流电阻R8与电源用户端零线端相连，指示灯LED阳极经脱扣线圈L1与电源用户端火线端相连。
本发明的有益效果在于：通过复位开关、主回路开关、反接线通路开关及自检通路开关的关联设置，实现漏电保护、反接线保护和定时自检功能，电路结构简单，动作可靠；主回路开关摒弃了跷跷板式结构，加工、装配精度要求大大降低，可靠性大大提高；模拟通路开关和自检通路开关结构精巧，动作稳定可靠，优化装配空间；脱扣线圈回路设置限流二极管（可借用指示电路中的二极管），有效防止元器件损坏。
附图说明
图1 为本发明实施例一的电路图；
图2为本发明实施例二的电路图；
图3 为本发明实施例三的电路图；
图4 为本发明实施例四的电路图。
具体实施方式
以下结合具体实施例和附图对本发明作进一步说明：
实施例一
参照附图1所示，本发明的具有定时自检功能的快速动作式漏电检测保护电路，包括电源输入端、电源负载端、电源用户端、用于检测漏电流及低电阻故障的双感应线圈（T1、T2）、控制芯片IC1、内置有铁芯的脱扣线圈L1、复位按钮、自检芯片IC2及自检可控硅SCR，其特征在于：复位按钮联动设置有主回路开关、模拟通路开关以及常开的自检通路开关K8；模拟通路开关包括前端常开开关K7以及后端常开开关K9，前端常开开关K7连接于电源输入端其中一相和脱扣线圈L1其中一端之间，后端常开开关K9连接于穿过双感应线圈（T1、T2）的电源输入端其中一相和脱扣线圈L1另一端之间，前端常开开关K7和后端常开开关K9均在复位按钮按下时碰接闭合使得脱扣线圈L1形成穿过双感应线圈（T1、T2）的回路；自检通路开关K8一端与电源输入端火线端相连，另一端通过自检可控硅SCR接地，自检通路开关K8在复位成功时保持闭合；主回路开关包括一对从电源负载端引出的动接触杆、一对从穿过双感应线圈的电源输入端引出的静接触端以及一对从电源用户端引出的静接触端，一对动接触杆与穿过双感应线圈的电源输入端引出的一对静接触端接触形成在复位按钮复位成功时闭合的常开开关（K1、K4），一对动接触杆与电源用户端引出的静接触端形成在复位按钮复位成功时接触闭合的常开开关（K2、K5），一对动接触杆还设置有带弹性复位机构且在自然状态下一端与对应动接触杆接触而在动接触杆动作时分离的一对升降接触杆，电源输入端火线端和电源用户端火线端各引出一静接触杆，一对升降接触杆中的火线升降接触杆始终与电源用户端火线端引出的静接触杆导通并通过火线动接触杆形成常闭开关K3将电源负载端火线端与电源用户端火线端连为一体，火线升降接触杆在反接线时与电源输入端火线端引出的静接触杆导通并与火线动接触杆分离将电源用户端火线端与电源输入端火线端连为一体。
模拟通路开关的前端常开开关K7与自检通路开关K8共用一动接触杆，前端常开开关K7的静接触端经脱扣线圈L1、后端常开开关K9引至穿过双感应线圈T1、T2的电源输入端零线端。
为防止反复测试过程中因为温升导致脱扣线圈损坏，脱扣线圈L1回路上还连接有一限流二极管D1。
为便于用户观察电路功能是否完好，还包括至少由一在复位成功时常亮并在脱扣线圈L1故障时熄灭的指示灯LED组成的指示电路，指示灯LED经过脱扣线圈L1及主回路开关与电源输入端形成穿过双感应线圈（T1、T2）的回路。
本实施例中，限流二极管D1的阴极经模拟通路开关的后端常开开关K9与穿过双感应线圈（T1、T2）的电源输入端零线端相连，限流二极管D1的阳极经脱扣线圈L1与电源用户端火线端相连；一对升降接触杆中的零线升降接触杆通过主回路开关的零线动接触杆形成在反接线时断开的常闭开关K6。
实施例二
参照图2所示，本实施例中， 电源用户端火线端引出的静接触杆上连接有限流二极管D1，限流二极管D1的阳极分作两路分别与电源用户端火线端以及脱扣线圈L1的输入端相连，限流二极管D1的阴极经一对升降接触杆中的火线升降接触杆、主回路开关的火线动接触杆与电源负载端火线端相连。
实施例三
参照图3所示，本实施例中，指示电路还包括二极管D1和限流电阻R8，二极管D1同时作为脱扣线圈回路的限流二极管，二极管D1阳极与脱扣线圈L1的输出端相连，二极管D1阴极还经过模拟通路开关中的后端常开开关K9与穿过双感应线圈（T1、T2）的电源输入端零线端相连。
实施例四
参照图4所示，本实施例中，指示电路还包括限流电阻R8，指示灯LED阴极经限流电阻R8与电源用户端零线端相连，指示灯LED阳极经脱扣线圈L1与电源用户端火线端相连。
虽然本发明已通过参考优选的实施例进行了图示和描述，但是，本领域普通技术人员应当了解，可以不限于上述实施例的描述，在权利要求书的范围内，可作出形式和细节上的各种变化。

Claims (8)

1.具有定时自检功能的快速动作式漏电检测保护电路，包括电源输入端、电源负载端、电源用户端、用于检测漏电流及低电阻故障的双感应线圈（T1、T2）、控制芯片（IC1）、内置有铁芯的脱扣线圈（L1）、复位按钮、自检芯片（IC2）及自检可控硅（SCR），其特征在于：复位按钮联动设置有主回路开关、模拟通路开关以及常开的自检通路开关（K8）；模拟通路开关包括前端常开开关（K7）以及后端常开开关（K9），前端常开开关（K7）连接于电源输入端其中一相和脱扣线圈（L1）其中一端之间，后端常开开关（K9）连接于穿过双感应线圈（T1、T2）的电源输入端其中一相和脱扣线圈（L1）另一端之间，前端常开开关（K7）和后端常开开关（K9）均在复位按钮按下时碰接闭合使得脱扣线圈（L1）形成穿过双感应线圈（T1、T2）的回路；自检通路开关（K8）一端与电源输入端火线端相连，另一端通过自检可控硅（SCR）接地，自检通路开关（K8）在复位成功时保持闭合；主回路开关包括一对从电源负载端引出的动接触杆、一对从穿过双感应线圈的电源输入端引出的静接触端以及一对从电源用户端引出的静接触端，一对动接触杆与穿过双感应线圈的电源输入端引出的一对静接触端接触形成在复位按钮复位成功时闭合的常开开关（K1、K4），一对动接触杆与电源用户端引出的静接触端形成在复位按钮复位成功时接触闭合的常开开关（K2、K5），一对动接触杆还设置有带弹性复位机构且在自然状态下一端与对应动接触杆接触而在动接触杆动作时分离的一对升降接触杆，电源输入端火线端和电源用户端火线端各引出一静接触杆，一对升降接触杆中的火线升降接触杆始终与电源用户端火线端引出的静接触杆导通并通过火线动接触杆形成常闭开关（K3）将电源负载端火线端与电源用户端火线端连为一体，火线升降接触杆在反接线时与电源输入端火线端引出的静接触杆导通并与火线动接触杆分离将电源用户端火线端与电源输入端火线端连为一体。
2.根据权利要求1所述的具有定时自检功能的快速动作式漏电检测保护电路，其特征在于：模拟通路开关的前端常开开关（K7）与自检通路开关（K8）共用一动接触杆，前端常开开关（K7）的静接触端经脱扣线圈（L1）、后端常开开关（K9）引至穿过双感应线圈（T1、T2）的电源输入端零线端。
3.根据权利要求1所述的具有定时自检功能的快速动作式漏电检测保护电路，其特征在于：脱扣线圈（L1）回路上还连接有一限流二极管（D1）。
4.根据权利要求1所述的具有定时自检功能的快速动作式漏电检测保护电路，其特征在于：还包括至少由一在复位成功时常亮并在脱扣线圈（L1）故障时熄灭的指示灯（LED）组成的指示电路，指示灯（LED）经过脱扣线圈（L1）及主回路开关与电源输入端形成穿过双感应线圈（T1、T2）的回路。
5.根据权利要求3所述的具有定时自检功能的快速动作式漏电检测保护电路，其特征在于：限流二极管（D1）的阴极经模拟通路开关的后端常开开关（K9）与穿过双感应线圈（T1、T2）的电源输入端零线端相连，限流二极管（D1）的阳极经脱扣线圈（L1）与电源用户端火线端相连；一对升降接触杆中的零线升降接触杆通过主回路开关的零线动接触杆形成在反接线时断开的常闭开关（K6）。
6.根据权利要求1所述的具有定时自检功能的快速动作式漏电检测保护电路，其特征在于： 电源用户端火线端引出的静接触杆上连接有限流二极管（D1），限流二极管（D1）的阳极分作两路分别与电源用户端火线端以及脱扣线圈（L1）的输入端相连，限流二极管（D1）的阴极经一对升降接触杆中的火线升降接触杆、主回路开关的火线动接触杆与电源负载端火线端相连。
7.根据权利要求4所述的具有定时自检功能的快速动作式漏电检测保护电路，其特征在于：指示电路还包括二极管（D1）和限流电阻（R8），二极管（D1）同时作为脱扣线圈回路的限流二极管，二极管（D1）阳极与脱扣线圈（L1）的输出端相连，二极管（D1）阴极还经过模拟通路开关中的后端常开开关（K9）与穿过双感应线圈（T1、T2）的电源输入端零线端相连。
8.根据权利要求4所述的具有定时自检功能的快速动作式漏电检测保护电路，其特征在于：指示电路还包括限流电阻（R8），指示灯（LED）阴极经限流电阻（R8）与电源用户端零线端相连，指示灯（LED）阳极经脱扣线圈（L1）与电源用户端火线端相连。
CN201610789501.1A 2016-08-31 2016-08-31 具有定时自检功能的快速动作式漏电检测保护电路 Active CN106229941B (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201610789501.1A CN106229941B (zh) 2016-08-31 2016-08-31 具有定时自检功能的快速动作式漏电检测保护电路
US15/691,999 US10209287B2 (en) 2016-08-31 2017-08-31 Quick-action leakage detection protection circuit having regular self-checking function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610789501.1A CN106229941B (zh) 2016-08-31 2016-08-31 具有定时自检功能的快速动作式漏电检测保护电路

Publications (2)

Publication Number Publication Date
CN106229941A true CN106229941A (zh) 2016-12-14
CN106229941B CN106229941B (zh) 2018-07-13

Family

ID=58074296

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610789501.1A Active CN106229941B (zh) 2016-08-31 2016-08-31 具有定时自检功能的快速动作式漏电检测保护电路

Country Status (2)

Country Link
US (1) US10209287B2 (zh)
CN (1) CN106229941B (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108736438B (zh) * 2018-05-30 2019-09-20 浙江朗威微系统有限公司 内置自测试功能漏电保护电路及其检测方法
CN110190584B (zh) * 2019-05-10 2020-04-24 浙江大学 漏电保护器的自检芯片
CN110491693B (zh) * 2019-09-29 2024-02-27 山西汾西重工有限责任公司 防数据泄露自毁电路的舱盖启动式开关
CN113567881B (zh) * 2021-06-24 2022-11-11 宁波方太厨具有限公司 一种降低清洗机误报漏电故障的工作方法
CN115173362B (zh) * 2022-07-12 2023-07-21 无锡友达电子有限公司 带自检的漏电保护装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6807035B1 (en) * 2000-11-28 2004-10-19 Hubbell Incorporated Fault interrupter using microcontroller for fault sensing and automatic self-testing
US20090180222A1 (en) * 2008-01-14 2009-07-16 General Protecht Group, Inc. Self fault-detection circuit for ground fault circuit interrupter
CN104104055A (zh) * 2014-06-16 2014-10-15 温州市万盛电器有限公司 具有定时自检和反接线保护功能的漏电检测保护电路
CN105305374A (zh) * 2015-10-27 2016-02-03 黄金和 具有精密过载保护功能的漏电检测保护电路

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8300368B2 (en) 2007-09-30 2012-10-30 Huadao Huang Circuit interrupting device with end-of life testing, reverse wiring and high voltage surge capability
US8462471B2 (en) 2007-09-30 2013-06-11 Huadao Huang Circuit interrupting device with high voltage surge protection
CN201422187Y (zh) 2009-05-31 2010-03-10 黄华道 轻触式调光开关
US8147260B2 (en) 2009-06-10 2012-04-03 Huadao Huang Power outlet socket safety shield device
CN201490421U (zh) 2009-06-10 2010-05-26 黄华道 电源插孔安全挡板装置
CN201490438U (zh) 2009-08-27 2010-05-26 黄华道 面板
US7887346B1 (en) 2009-09-21 2011-02-15 Huadao Huang Safety shutters for electrical receptacle
US9203232B2 (en) 2010-05-05 2015-12-01 Huadao Huang Leakage detection protective circuit
US8154832B2 (en) 2010-05-05 2012-04-10 Huadao Huang Leak detection and leak protection circuit
US8550829B2 (en) 2010-09-30 2013-10-08 Huadao Huang Power outlet with jack safety shield device
CN102447186A (zh) 2010-09-30 2012-05-09 黄华道 漏电保护插座
CN102270788B (zh) 2011-05-12 2013-06-19 黄华道 具有挡板锁止机构的电源插座
US8382497B2 (en) 2010-09-30 2013-02-26 Huadao Huang Power outlet with shield locking mechanism
US8858245B2 (en) 2010-09-30 2014-10-14 Huadao Huang Leakage protection socket with integrated baffle locking mechanism
CN102457042B (zh) 2010-10-26 2015-05-20 黄华道 漏电检测保护电路
CN102611071B (zh) 2011-01-25 2015-05-20 黄华道 带有磁锁定机构的漏电检测保护电路
CN102780205B (zh) 2011-05-11 2015-01-14 黄华道 漏电检测保护电路
CN102832591B (zh) 2011-06-17 2016-09-07 黄华道 具有抗雷电冲击功能的漏电检测保护电路
CN103269000B (zh) 2013-04-28 2015-10-21 温州市万盛电器有限公司 具有反接线保护功能的改进型漏电保护插座
CN103490377A (zh) 2013-09-27 2014-01-01 温州市万盛电器有限公司 漏电检测保护电路
CN103887764B (zh) 2014-03-25 2017-01-04 温州市万盛电器有限公司 兼具定时自检和反接线保护功能的漏电检测保护电路
CN103887765B (zh) 2014-03-25 2017-01-18 温州市万盛电器有限公司 具有分立元件定时自检功能的漏电检测保护电路
CN104143812A (zh) 2014-07-30 2014-11-12 黄华道 漏电检测保护电路
CN104393564A (zh) 2014-11-20 2015-03-04 黄金和 具有定时自检功能的漏电检测保护电路

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6807035B1 (en) * 2000-11-28 2004-10-19 Hubbell Incorporated Fault interrupter using microcontroller for fault sensing and automatic self-testing
US20090180222A1 (en) * 2008-01-14 2009-07-16 General Protecht Group, Inc. Self fault-detection circuit for ground fault circuit interrupter
CN104104055A (zh) * 2014-06-16 2014-10-15 温州市万盛电器有限公司 具有定时自检和反接线保护功能的漏电检测保护电路
CN105305374A (zh) * 2015-10-27 2016-02-03 黄金和 具有精密过载保护功能的漏电检测保护电路

Also Published As

Publication number Publication date
CN106229941B (zh) 2018-07-13
US10209287B2 (en) 2019-02-19
US20180059163A1 (en) 2018-03-01

Similar Documents

Publication Publication Date Title
CN106229941A (zh) 具有定时自检功能的快速动作式漏电检测保护电路
US11190005B2 (en) Reverse grounding protection circuit and ground fault circuit interrupter
US8054590B2 (en) Ground-fault circuit interrupter with circuit condition detection function
CN102780205B (zh) 漏电检测保护电路
CN103219702B (zh) 可定时自检的漏电检测保护电路
CN102832591A (zh) 具有抗雷电冲击功能的漏电检测保护电路
CN104104055A (zh) 具有定时自检和反接线保护功能的漏电检测保护电路
CN103887764B (zh) 兼具定时自检和反接线保护功能的漏电检测保护电路
CN102185222A (zh) 具有反接线保护功能的漏电保护插座
CN102593785B (zh) 漏电检测保护电路
CN101237138A (zh) 超级防雷保护移动式插座
CN201188535Y (zh) 超级防雷保护移动式插座
CN102231462A (zh) 一种漏电保护插头
CN203690222U (zh) 一种可上下接线的电子式漏电断路器
CN104393564A (zh) 具有定时自检功能的漏电检测保护电路
CN2906903Y (zh) 一种快速通断式漏电保护装置
CN201402963Y (zh) 半波整流型漏电检测保护电路
CN101820164A (zh) 漏电检测模块以及具有漏电检测模块的漏电保护断路器
CN105006708A (zh) 可转换保护模式的漏电保护插头
CN110726249B (zh) 漏电保护装置、方法及电热水器
CN201018264Y (zh) 具有寿命终止检测和显示功能的漏电保护电路
CN104143812A (zh) 漏电检测保护电路
CN206353513U (zh) 一种漏电保护器
CN201167073Y (zh) 具有快速复位特性的电故障断路装置
CN102377164B (zh) 节能型漏电检测保护电路

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant