CN112421782A - 一种漏电保护开关在线监测装置 - Google Patents

一种漏电保护开关在线监测装置 Download PDF

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CN112421782A
CN112421782A CN202011312350.3A CN202011312350A CN112421782A CN 112421782 A CN112421782 A CN 112421782A CN 202011312350 A CN202011312350 A CN 202011312350A CN 112421782 A CN112421782 A CN 112421782A
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monitoring device
protection switch
leakage protection
circuit board
module
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杨琦
罗玉珠
王骏
李凯恩
杨绍露
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Lincang Power Supply Bureau of Yunnan Power Grid Co Ltd
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    • 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
    • H02J13/00006—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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00022—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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
    • H02J13/00024—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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission by means of mobile telephony
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
    • 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
    • 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
    • H02J13/00006—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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00022—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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
    • H02J13/00026—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 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission involving a local wireless network, e.g. Wi-Fi, ZigBee or Bluetooth
    • 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
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
    • H02J13/0004—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers involved in a protection system
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
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    • H05K5/0217—Mechanical details of casings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0247—Electrical details of casings, e.g. terminals, passages for cables or wiring
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

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Abstract

本发明是一种漏电保护开关在线监测装置，该漏电保护开关在线监测装置包括监测装置外壳、接入端、接出端、电路板、AC/DC模块、WIFI传输模块、信号处理模块和智能监测芯片；所述接入端通过接入连接电线与电路板上的接入端座连接，接出端通过接出连接电线与电路板上的接出端座连接，接入端和接出端分别与漏电保护开关接出口和火线连接；所述AC/DC模块、WIFI传输模块、信号处理模块和智能监测芯片设于电路板上。本发明无需更换漏电保护开关，也无需对原有安装的漏电保护开关进行改造，漏电保护开关接入本装置即可将漏电保护开关的工作状态、漏电信息、用电量等数据通过WIFI传送至手机，从而实现漏电保护开关的在线监测，减少资源浪费，且绿色环保。

Description

一种漏电保护开关在线监测装置
技术领域
本发明涉及一种智能监测设备，特别涉及一种漏电保护开关在线监测装置。
背景技术
由于各种原因，目前国内的家庭，企业等场所所使用的大多是普通的AC型漏电保护开关。这种漏电保护开关往往价格低廉，功能较少，只具有检测到漏电后进行动作跳闸的功能，无法提供导致漏电的波形或电流，导致发生跳闸后，只能通过人工根据经验来进行判断。此外，对于大部分场所而言，因AC型漏电保护开关本身质量较好，可以对漏电进行准确的判断，若为了增加功能而更换漏电保护开关，势必会带来不必要的资源浪费。
发明内容
为解决上述问题，本发明提供一种漏电保护开关在线监测装置。
本发明采用的技术方案为：
一种漏电保护开关在线监测装置，该漏电保护开关在线监测装置包括监测装置外壳、接入端、接出端、电路板、AC/DC模块、WIFI传输模块、信号处理模块和智能监测芯片；所述接入端和接出端设于监测装置外壳一侧的槽体内，接入端通过接入连接电线与电路板上的接入端座连接，接出端通过接出连接电线与电路板上的接出端座连接，接入端和接出端分别与漏电保护开关接出口和火线连接；所述AC/DC模块、WIFI传输模块、信号处理模块和智能监测芯片设于电路板上，电路板固定于监测装置外壳内。
优选的，所述AC/DC模块通过电路板内部的线路与接入端座、接出端座、WIFI传输模块和智能监测芯片连接，WIFI传输模块通过电路板内部的线路与智能监测芯片连接，信号处理模块通过电路板内部的线路与接入端座和智能监测芯片连接。
优选的，所述接入端和接出端分别为两个卡线器，卡线器由卡座和压接螺栓构成，接入端和接出端的卡座分别与接入连接电线和接出连接电线焊接，旋转压接螺栓配合卡座能够对与漏电保护开关连接的电线和火线压接。
优选的，所述监测装置外壳采用硬质绝缘材料制作，由监测装置底座和监测装置盖构成，监测装置底座与监测装置盖螺栓连接。
优选的，所述AC/DC模块通过双绕组变压器和整流桥可以将220V的交流电转为3.3V~5V的直流电。
优选的，所述智能监测芯片内部集成了智能算法，智能算法包括以下步骤：步骤a，对于典型的漏电波形进行频谱分析，建立对应的特征数据库，然后将数据库写入到IC芯片中；步骤b，IC芯片将采集到的信号波形进行快速傅里叶变化，获得波形的频谱特征，然后与建立的数据库进行对比，从而判断产生的漏电种类。
本发明的有益效果是：
与现有的技术相比，该漏电保护开关在线监测装置体积小巧，成本较低，无需更换漏电保护开关，也无需对原有安装的漏电保护开关进行改造，漏电保护开关接入本装置即可使用。在线监测装置内部的智能监测芯片集成了智能算法，可以识别出漏电保护开关是否跳闸，并且在跳闸后记录引发跳闸动作的电流波形，作为漏电信息进行储存，还可以计算用电量、线路瞬时功率等信息。通过WiFi模块连接手机后，可将上述信息进行传输。从而对漏电保护开关实现在线监测的基础上，避免更换原有的漏电保护开关，减少资源浪费，且绿色环保。
附图说明
图1、图2、图3为本发明的结构示意图。
图1—3中，1—接入端、2—接出端、3—电路板、4—AC/DC模块、5—WIFI传输模块、6—信号处理模块、7—智能监测芯片、8—接入连接电线、9—接入端座、10—接出连接电线、11—接出端座、12—卡座、13—压接螺栓、14—监测装置底座、15—监测装置盖。
具体实施方式
下面将结合本发明实施例的附图，对本发明实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有付出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
如图1—3所示，本发明是一种漏电保护开关在线监测装置，该漏电保护开关在线监测装置包括监测装置外壳、接入端1、接出端2、电路板3、AC/DC模块4、WIFI传输模块5、信号处理模块6和智能监测芯片7。
所述监测装置外壳采用硬质绝缘材料制作，由监测装置底座14和监测装置盖15构成，监测装置底座14与监测装置盖15螺栓连接。
所述接入端1和接出端2设于监测装置外壳一侧的槽体内，接入端1通过接入连接电线8与电路板3上的接入端座9连接，接出端2通过接出连接电线10与电路板3上的接出端座11连接，接入端1和接出端2分别与漏电保护开关接出口和火线连接。所述AC/DC模块4、WIFI传输模块5、信号处理模块6和智能监测芯片7设于电路板3上，电路板3固定于监测装置外壳内。
所述AC/DC模块4采用Risym厂家的精密隔离开关电源模块，AC/DC模块4内有一个双绕组变压器和整流桥，可以将220V的交流电转为3.3V~5V的直流电。所述WIFI传输模块5采用Risym厂家ATK-ESP8266模块，WIFI传输模块5具有三种工作模式，分别为互联网连接、手机热点连接与路由器连接，可根据需要选择模式。所述信号处理模块6采用APOBICO的MAX262模块，信号处理模块6具有低通滤波功能，可将线路中的高频杂波信号滤除，提高IC芯片的检测精度。所述智能监测芯片7采用了STM32f103芯片，智能监测芯片7具有多个I/O接口，可同时控制多个模块，主频为72mHz，其处理速度满足对漏电的检测。
所述AC/DC模块4通过电路板3内部的线路与接入端座9、接出端座11、WIFI传输模块5和智能监测芯片7连接，WIFI传输模块5通过电路板3内部的线路与智能监测芯片7连接，信号处理模块6通过电路板3内部的线路与接入端座9和智能监测芯片7连接。
所述接入端1和接出端2分别为两个卡线器，卡线器由卡座12和压接螺栓13构成，接入端1和接出端2的卡座12分别与接入连接电线8和接出连接电线10焊接，旋转压接螺栓13配合卡座12能够对与漏电保护开关连接的电线和火线压接。
该漏电保护开关在线监测装置安装时，首先找到漏电保护开关火线的接出口，使用电线一端固定在漏电保护开关火线的接出口，另一端穿过接入端1和接出端2的卡座12，并旋转压接螺栓13将电线固定。然后将手机端安装对应的APP，打开手机WIFI与该漏电保护开关在线监测装置的WIFI传输模块5相连接。该漏电保护开关在线监测装置的工作原理为：接入端1与漏电保护开关电线连接，接入端1通电后，AC/DC模块4通过双绕组变压器和整流桥可以将接入端1的220V的交流电转为3.3V~5V的直流电，并通过电路板3为WIFI模块和智能监测芯片7供电。由于信号处理模块6通过电路板3内部的线路与接入端座9连接，因此信号处理模块6能够对接入端1的电压与电流信号进行采集，采集后的信号通过低通滤波后，将高频杂波部分过滤掉，然后通过电路板3输入至智能监测芯片7。智能监测芯片7实时接收后，进行计算处理，并将计算处理后的信息通过WIFI模块将数据实时传输至手机端。
需要说明的是，所述智能监测芯片7内部集成了智能算法，智能算法包括以下步骤：步骤a，对于典型的漏电波形进行频谱分析，建立对应的特征数据库，然后将数据库写入到IC芯片中；步骤b，IC芯片将采集到的信号波形进行快速傅里叶变化，获得波形的频谱特征，然后与建立的数据库进行对比，从而判断产生的漏电种类。
智能监测芯片7通过智能算法对前线路的电压变化进行实时判断，进而断定漏电保护开关是否进行动作。若断定漏电保护开关即将发生动作跳闸，则在发生动作跳闸前发出漏电跳闸预警信号，并通过WIFI模块传送到手机端进行通知，使手机端通知与漏电保护开关动作跳闸同步；同时智能监测芯片7利用自身存储功能将发生中断之前200ms内的电流信号进行自动存储。待漏电保护开关再次通电后，智能监测芯片7将中断之前200ms内的电流信号进行调取，并作为漏电信号的波形进行分类及对该信号的波形进行分析，从而判断发生漏电的种类，推断发生漏电的原因以及产生漏电的原因等。
此外，智能监测芯片7接收到信号处理模块6处理的电压与电流信号后，会进行计算用电量、线路瞬时功率等信息，并进行存储，供手机端通过WIFI模块进行读取。

Claims (6)

1.一种漏电保护开关在线监测装置，其特征在于：该漏电保护开关在线监测装置包括监测装置外壳、接入端、接出端、电路板、AC/DC模块、WIFI传输模块、信号处理模块和智能监测芯片；所述接入端和接出端设于监测装置外壳一侧的槽体内，接入端通过接入连接电线与电路板上的接入端座连接，接出端通过接出连接电线与电路板上的接出端座连接，接入端和接出端分别与漏电保护开关接出口和火线连接；所述AC/DC模块、WIFI传输模块、信号处理模块和智能监测芯片设于电路板上，电路板固定于监测装置外壳内。
2.根据权利要求1所述的漏电保护开关在线监测装置，其特征在于：所述AC/DC模块通过电路板内部的线路与接入端座、接出端座、WIFI传输模块和智能监测芯片连接，WIFI传输模块通过电路板内部的线路与智能监测芯片连接，信号处理模块通过电路板内部的线路与接入端座和智能监测芯片连接。
3.根据权利要求1所述的漏电保护开关在线监测装置，其特征在于：所述接入端和接出端分别为两个卡线器，卡线器由卡座和压接螺栓构成，接入端和接出端的卡座分别与接入连接电线和接出连接电线焊接，旋转压接螺栓配合卡座能够对与漏电保护开关连接的电线和火线压接。
4.根据权利要求1所述的漏电保护开关在线监测装置，其特征在于：所述监测装置外壳采用硬质绝缘材料制作，由监测装置底座和监测装置盖构成，监测装置底座与监测装置盖螺栓连接。
5.根据权利要求1所述的漏电保护开关在线监测装置，其特征在于：所述AC/DC模块通过双绕组变压器和整流桥可以将220V的交流电转为3.3V~5V的直流电。
6.根据权利要求1所述的漏电保护开关在线监测装置，其特征在于：所述智能监测芯片内部集成了智能算法，智能算法包括以下步骤：步骤a，对于典型的漏电波形进行频谱分析，建立对应的特征数据库，然后将数据库写入到IC芯片中；
步骤b，IC芯片将采集到的信号波形进行快速傅里叶变化，获得波形的频谱特征，然后与建立的数据库进行对比，从而判断产生的漏电种类。
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