CN204925229U - Domestic appliance warning device that leaks electricity - Google Patents

Domestic appliance warning device that leaks electricity Download PDF

Info

Publication number
CN204925229U
CN204925229U CN201520668023.XU CN201520668023U CN204925229U CN 204925229 U CN204925229 U CN 204925229U CN 201520668023 U CN201520668023 U CN 201520668023U CN 204925229 U CN204925229 U CN 204925229U
Authority
CN
China
Prior art keywords
circuit
module
electric current
detection module
processing module
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.)
Expired - Fee Related
Application number
CN201520668023.XU
Other languages
Chinese (zh)
Inventor
余莺
Original Assignee
余莺
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 余莺 filed Critical 余莺
Priority to CN201520668023.XU priority Critical patent/CN204925229U/en
Application granted granted Critical
Publication of CN204925229U publication Critical patent/CN204925229U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a domestic appliance warning device that leaks electricity, including ground connection circuit module, contact metal label piece, electric current ADC detection module, processing module circuit, alarm circuit and battery, contact metal label piece and electric current ADC detection module's current input is connected, and electric current ADC detection module's current output terminal and ground connection circuit module are connected, and electric current ADC detection module's control interface and processing module detection module 1, processing module circuit are connected with alarm circuit and battery respectively. The utility model discloses a with connecting a current detection circuit between domestic appliance metal surface and the ground connection circuit module to whether effectively detect out the domestic appliance surface and leak electricity, and can send the guard signal, so as to lets user of service in time take measures to eliminate the electric leakage circumstances, with the safety of guaranteeing personnel.

Description

Household electrical appliance leakage warning device
Technical field
The utility model relates to a kind of proterctive equipment, particularly relates to a kind of household electrical appliance leakage warning device.
Background technology
Household electrical appliance are owing to being operated in 220V voltage environment, if therefore electric leakage can exist certain danger to personnel.Current household electrical appliance major part does not arrange the earth leakage protective device of protection personnel in inside; and the electric equipment being provided with electric leakage reminder alarm device does not substantially also have, therefore need to install present household electrical appliance to arrange relevant leakage warning device so that protect the safety of personnel under burst drain conditions.
Utility model content
The purpose of this utility model: a kind of household electrical appliance leakage warning device that can send alarm signal when household electrical appliance leak electricity is provided.
To achieve these goals, the technical solution of the utility model is:
A kind of household electrical appliance leakage warning device, comprise grounding circuit module, contacting metal labei sheet, electric current ADC detection module, processing module circuit, circuit for alarming and battery, described contacting metal labei sheet is connected with the current input terminal of electric current ADC detection module, the current output terminal of described electric current ADC detection module and grounding circuit model calling, the control interface of described electric current ADC detection module is connected with processing module circuit, and described processing module circuit is connected with circuit for alarming and battery respectively.
Preferably, described grounding circuit module work resistance is 25 ohm.
Preferably, described electric current ADC detection module have employed current input adc chip DDC316.
Preferably, described processing module circuit have employed chip MSP430F5224.
The utility model is by connecting a current detection circuit by between household electrical appliance metal surface and grounding circuit module, effectively to detect whether home appliance surface leaks electricity, and can alarm signal be sent, thus user of service can be allowed to take measures in time to eliminate drain conditions, to ensure the safety of personnel.
Accompanying drawing explanation
Fig. 1 is the equipment structure chart of the utility model household electrical appliance leakage warning device.
Fig. 2 is the schematic diagram of the utility model household electrical appliance leakage warning device.
Embodiment
Embodiment of the present utility model is further illustrated below in conjunction with accompanying drawing.
Refer to shown in Fig. 1 and Fig. 2, a kind of household electrical appliance leakage warning device, comprise grounding circuit module 1, contacting metal labei sheet 2, electric current ADC detection module 3, processing module circuit 4, circuit for alarming 5 and battery 6, described contacting metal labei sheet 2 is connected with the current input terminal of electric current ADC detection module 3, the current output terminal of described electric current ADC detection module 3 is connected with grounding circuit module 1, the control interface of described electric current ADC detection module 3 is connected with processing module circuit 4, and described processing module circuit 4 is connected with circuit for alarming 5 and battery 6 respectively.
The metal surface of household electrical appliance, contacting metal labei sheet 2, electric current ADC detection module 3 and grounding circuit module 1 are in turn connected to form current path, when household electrical appliance leak electricity, certain leakage current can be formed in current path, described electric current ADC detection module 3 can convert leakage current to digital current signal and be transferred to processing module circuit 4, described processing module circuit 4 is provided with leakage current threshold values in inside, when the numerical value that described processing module circuit 4 collects digital current signal is greater than leakage current threshold values, the LED flicker in circuit for alarming 5 can be controlled immediately, effectively to remind user of service that current household electrical appliance exist electric leakage, thus the electric leakage of elimination household electrical appliance of can taking measures in time, the possibility that the personnel that avoid touch and cause danger.
Preferably, described grounding circuit module 1 operating resistance is 25 ohm.
Preferably, described electric current ADC detection module 3 have employed current input adc chip DDC316.
Preferably, described processing module circuit 4 have employed chip MSP430F5224.
The utility model is by connecting a current detection circuit by between household electrical appliance metal surface and grounding circuit module, effectively to detect whether home appliance surface leaks electricity, and can alarm signal be sent, thus user of service can be allowed to take measures in time to eliminate drain conditions, to ensure the safety of personnel.

Claims (4)

1. a household electrical appliance leakage warning device, it is characterized in that: comprise grounding circuit module (1), contacting metal labei sheet (2), electric current ADC detection module (3), processing module circuit (4), circuit for alarming (5) and battery (6), described contacting metal labei sheet (2) is connected with the current input terminal of electric current ADC detection module (3), the current output terminal of described electric current ADC detection module (3) is connected with grounding circuit module (1), the control interface of described electric current ADC detection module (3) is connected with processing module circuit (4), described processing module circuit (4) is connected with circuit for alarming (5) and battery (6) respectively.
2. household electrical appliance leakage warning device according to claim 1, is characterized in that: described grounding circuit module (1) operating resistance is 25 ohm.
3. household electrical appliance leakage warning device according to claim 1, is characterized in that: described electric current ADC detection module (3) have employed current input adc chip DDC316.
4. household electrical appliance leakage warning device according to claim 1, is characterized in that: described processing module circuit (4) have employed chip MSP430F5224.
CN201520668023.XU 2015-08-22 2015-08-22 Domestic appliance warning device that leaks electricity Expired - Fee Related CN204925229U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520668023.XU CN204925229U (en) 2015-08-22 2015-08-22 Domestic appliance warning device that leaks electricity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520668023.XU CN204925229U (en) 2015-08-22 2015-08-22 Domestic appliance warning device that leaks electricity

Publications (1)

Publication Number Publication Date
CN204925229U true CN204925229U (en) 2015-12-30

Family

ID=54974342

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520668023.XU Expired - Fee Related CN204925229U (en) 2015-08-22 2015-08-22 Domestic appliance warning device that leaks electricity

Country Status (1)

Country Link
CN (1) CN204925229U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020105745A1 (en) * 2018-11-20 2020-05-28 Samsung Electronics Co., Ltd. Terminal of supporting leakage detection, and method for performing leakage detection for the terminal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020105745A1 (en) * 2018-11-20 2020-05-28 Samsung Electronics Co., Ltd. Terminal of supporting leakage detection, and method for performing leakage detection for the terminal

Similar Documents

Publication Publication Date Title
CN103219702B (en) It can electric leakage detection protection circuit capable of performing timed self-detection
CN102927690A (en) Water heater and electric leakage and dry burning preventing detection method thereof
CN203617494U (en) Electric shock prevention socket
CN104155505A (en) Earth wire live detection device, air conditioner and electrical equipment
CN204696642U (en) A kind of laboratory power supply protective device
CN204925229U (en) Domestic appliance warning device that leaks electricity
CN205028864U (en) Small -size electric leakage circuit breaker that area electric leakage was instructed
CN204179401U (en) A kind of insert row with alarm and protection function
CN204494837U (en) Electric heater
CN103376389B (en) A kind of fault electric arc for low-voltage circuit judges system and determination methods thereof
CN203300900U (en) Leakage protection plug
CN204794013U (en) Earth -leakage protector control circuit
CN202141202U (en) Electric heater with groundwire live line detecting and alarming as well as protecting
CN205039358U (en) Socket is reported an emergency and asked for help or increased vigilance to electrical apparatus leakage detection pronunciation
CN203480360U (en) Power strip
CN204423574U (en) A kind of multifunctional electric fire monitoring detector
CN202930337U (en) Leakage protector with inaction performance index detection
CN203522130U (en) Electric leakage automatic power off device of dish-washing machine
CN203241767U (en) Self-checking circuit capable of preventing wire connection misoperation
CN204835486U (en) Prevent dry combustion method protector
CN202949096U (en) Power socket with overvoltage protection function
CN210669509U (en) Leakage protection device
CN210954287U (en) Electric leakage display device
CN104420118A (en) Electric leakage detection device of washing machine
CN212588083U (en) Overheat protection circuit applied to leakage protection plug

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151230

Termination date: 20160822

CF01 Termination of patent right due to non-payment of annual fee