CN201789266U - 一种电器设备漏电监测电路 - Google Patents

一种电器设备漏电监测电路 Download PDF

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CN201789266U
CN201789266U CN2010205037743U CN201020503774U CN201789266U CN 201789266 U CN201789266 U CN 201789266U CN 2010205037743 U CN2010205037743 U CN 2010205037743U CN 201020503774 U CN201020503774 U CN 201020503774U CN 201789266 U CN201789266 U CN 201789266U
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circuit
switching circuit
chip microcomputer
display screen
electrical appliance
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胡勇
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Zhongshan Frigate Science & Technology Industry Co., Ltd.
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FRIGATE INTERNATIONAL ELECTRIC (ZHONGSHAN) Co Ltd
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Abstract

本实用新型公开了一种电器设备漏电监测电路,包括有片选开关电路,运算放大电路,通道开关电路,单片机,锁存器驱动电路,切断开关电路,语音报警电路,指示灯报警电路,显示屏,电源电路;所述片选开关电路输入端与检测电流或温度信号的终端探头连接,片选开关电路,运算放大电路,通道开关电路,单片机顺次连接,所述锁存器驱动电路,语音报警电路,指示灯报警电路,显示屏,电源电路都连接在单片机上,所述切断开关电路与锁存器驱动电路连接。本实用新型目的在于提供了一种具有多功能,可显示被监测设备的状况,防护安全的电器设备漏电监测电路。

Description

一种电器设备漏电监测电路
[技术领域]
本实用新型涉及一种电器设备漏电监测电路,用在电器设备漏电监测装置上。
[背景技术]
在运行输电线路中,终端用电网络遍及千家万户。由于终端用户输电线路中还缺乏相关先进、高可靠、功能完善的防护装置,输电线路过载及短路引发火灾、漏电甚至人伤亡的事故,以及过压、欠压、感应雷电串入损坏用电设备的用电事故时常发生。这些潜在性、突发性防不胜防的隐患,已成为人类安全用电的一大危害。目前投入防护使用的防护装置如保险丝、漏电开关、断路开关,虽然起到了一定作用,但功能有限,不能实时显示出被监测设备的状况,而且防护不全面、可靠性欠佳,本实用新型为了克服以上的缺点,进行了有益的改进。
[实用新型内容]
本实用新型克服了上述技术的不足,提供了一种具有多功能,可显示被监测设备的状况,防护安全的电器设备漏电监测电路。
为实现上述目的,本实用新型采用了下列技术方案:
一种电器设备漏电监测电路,包括有片选开关电路1,运算放大电路2,通道开关电路3,单片机4,锁存器驱动电路5,切断开关电路6,语音报警电路7,指示灯报警电路8,显示屏9,电源电路10;所述片选开关电路1输入端与检测电流或温度信号的终端探头连接,片选开关电路1,运算放大电路2,通道开关电路3,单片机4顺次连接,所述锁存器驱动电路5,语音报警电路7,指示灯报警电路8,显示屏9,电源电路10都连接在单片机上,所述切断开关电路6与锁存器驱动电路5连接。
与现有技术相比,本实用新型的有益效果是:
1、实时显示剩余电流值、温度值、电流值和回路编号;
2、可固定也可滚动显示指定回路剩余电流值、温度值、电流值;
3、当有多个回路同时预警时滚动显示每一回路的预警值及当前实时值;
4、可自由决定每个回路是否需要监控;
5、每个回路的预警值可以自由设定并且完全独立;
6、可自由设定任意的脱扣值,也可以关闭脱扣功能;
7、具有故障记忆查询功能,能储存故障记录10000多条;
8、具有与消防中心各类交流联动功能;
9、具有声光报警功能;
10、具有远程就地复位和自检功能;
11、具有时钟功能,可设定和显示当前日期和时间;
12、由于存在蓄电池芯片,这样在异常断电时可以起到持续供电的作用。
[附图说明]
图1为本实用新型的方框图。
[具体实施方式]
下面结合附图与本实用新型的实施方式作进一步详细的描述:
参见图1,本实用新型为一种电器设备漏电监测电路,包括有片选开关电路1,运算放大电路2,通道开关电路3,单片机4,锁存器驱动电路5,切断开关电路6,语音报警电路7,指示灯报警电路8,显示屏9,电源电路10;所述片选开关电路1输入端与检测电流或温度信号的终端探头连接,片选开关电路1,运算放大电路2,通道开关电路3,单片机4顺次连接,所述锁存器驱动电路5,语音报警电路7,指示灯报警电路8,显示屏9,电源电路10都连接在单片机上,所述切断开关电路6与锁存器驱动电路5连接。
还包括有与单片机连接的时钟电路11以及用于连接电脑的通讯电路12,该通讯电路12与单片机连接。
本实用新型的工作原理如下:
当电气设备中的电流、温度等参数发生异常突变时,终端探头(如剩余电流互感器、温度传感器等)利用电磁场感应原理、温度效应的变化对该信息进行采集,并输送到监控探测器里;经片选开关电路1后,经过运算放大电路2进行信号放大,及通道开关电路3后送到单片机4后,单片机4对变化的报警幅值进行分析、判断、和设定值进行比较,一旦超出设定值时;单片机4就会通过锁存器驱动电路5驱动切断开关电路6切断电源,使得电器设备与市电断开连接,点亮报警指示灯,单片机4同时发出驱动信号来驱动语音报警电路7发出语音报警信号;同时单片机由4内部A/D转换和数据处理,控制显示屏显示该有效值。

Claims (3)

1.一种电器设备漏电监测电路,包括有片选开关电路(1),运算放大电路(2),通道开关电路(3),单片机(4),锁存器驱动电路(5),切断开关电路(6),语音报警电路(7),指示灯报警电路(8),显示屏(9),电源电路(10);所述片选开关电路(1)输入端与检测电流或温度信号的终端探头连接,片选开关电路(1),运算放大电路(2),通道开关电路(3),单片机(4)顺次连接,所述锁存器驱动电路(5),语音报警电路(7),指示灯报警电路(8),显示屏(9),电源电路(10)都连接在单片机上,所述切断开关电路(6)与锁存器驱动电路(5)连接。
2.根据权利要求1所述的一种电器设备漏电监测电路,其特征在于还包括有与单片机连接的时钟电路(11)。
3.根据权利要求1所述的一种电器设备漏电监测电路,其特征在于还包括有用于连接电脑的通讯电路(12),该通讯电路(12)与单片机连接。
CN2010205037743U 2010-08-19 2010-08-19 一种电器设备漏电监测电路 Expired - Lifetime CN201789266U (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103675572A (zh) * 2012-09-14 2014-03-26 深圳市海洋王照明工程有限公司 一种漏电检测装置
CN106646085A (zh) * 2017-01-13 2017-05-10 广东欧珀移动通信有限公司 漏电测试方法、装置和设备
CN107202927A (zh) * 2017-06-13 2017-09-26 芜湖桑乐金电子科技有限公司 电暖画的自检方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103675572A (zh) * 2012-09-14 2014-03-26 深圳市海洋王照明工程有限公司 一种漏电检测装置
CN106646085A (zh) * 2017-01-13 2017-05-10 广东欧珀移动通信有限公司 漏电测试方法、装置和设备
CN106646085B (zh) * 2017-01-13 2019-04-16 Oppo广东移动通信有限公司 漏电测试方法、装置和设备
CN107202927A (zh) * 2017-06-13 2017-09-26 芜湖桑乐金电子科技有限公司 电暖画的自检方法

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