CN204925229U - Domestic appliance warning device that leaks electricity - Google Patents
Domestic appliance warning device that leaks electricity Download PDFInfo
- 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
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- circuit
- module
- electric current
- detection module
- warning device
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- Expired - Fee Related
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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
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.
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 (2)
| 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 |
| CN117991146A (en) * | 2024-04-03 | 2024-05-07 | 山东省计量科学研究院 | Household appliance leakage detection device |
-
2015
- 2015-08-22 CN CN201520668023.XU patent/CN204925229U/en not_active Expired - Fee Related
Cited By (3)
| 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 |
| US11525868B2 (en) | 2018-11-20 | 2022-12-13 | Samsung Electronics Co., Ltd. | Terminal of supporting leakage detection, and method for performing leakage detection for the terminal |
| CN117991146A (en) * | 2024-04-03 | 2024-05-07 | 山东省计量科学研究院 | Household appliance leakage detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |