CN204330933U - A kind of detection of electrical leakage warning circuit - Google Patents
A kind of detection of electrical leakage warning circuit Download PDFInfo
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- CN204330933U CN204330933U CN201420722433.3U CN201420722433U CN204330933U CN 204330933 U CN204330933 U CN 204330933U CN 201420722433 U CN201420722433 U CN 201420722433U CN 204330933 U CN204330933 U CN 204330933U
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- 238000001514 detection method Methods 0.000 title claims abstract description 19
- 239000003990 capacitor Substances 0.000 claims 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 10
- 229910052710 silicon Inorganic materials 0.000 description 10
- 239000010703 silicon Substances 0.000 description 10
- 208000027418 Wounds and injury Diseases 0.000 description 7
- 230000006378 damage Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
本实用新型一种漏电检测报警电路，属于漏电检测的技术领域；所要解决的技术问题为：提供一种能够检测用电设备漏电、并且可以报警提示的一种漏电检测报警电路；采用的技术方案为：一种漏电检测报警电路，包括整流电路Q1、时基集成电路芯片IC1和扬声器BL1，所述整流电路Q1的正向交流输入端串接电阻R1后与信号采集端a1相连，所述整流电路Q1的负向交流输入端与信号采集端a2相连，能够快速准确的测量漏电信息，当用电设备漏电时，发出警报；本实用新型适用于漏电检测的领域。
The utility model is a leakage detection and alarm circuit, which belongs to the technical field of leakage detection; the technical problem to be solved is: to provide a leakage detection and alarm circuit which can detect the leakage of electrical equipment and can give an alarm; the adopted technical scheme It is: a leakage detection and alarm circuit, including a rectification circuit Q1, a time-base integrated circuit chip IC1 and a speaker BL1, the positive AC input end of the rectification circuit Q1 is connected in series with a resistor R1 and connected to the signal acquisition end a1, and the rectification The negative AC input terminal of the circuit Q1 is connected to the signal acquisition terminal a2, which can quickly and accurately measure the leakage information, and when the electrical equipment leaks, an alarm is issued; the utility model is suitable for the field of leakage detection.
Description
Technical field
A kind of detection of electrical leakage warning circuit of the utility model, belongs to the technical field of detection of electrical leakage.
Background technology
Along with socioeconomic development, the raising of people's living standard, refrigerator, televisor, popularizing of the housed devices such as air-conditioning, many facilities have been with to the life of people, but with in electric process, due to the defect of electric equipment own, electric equipment is aging, the reasons such as electrical equipment improper use, likely can cause the generation of electric equipment leaky, harm is brought to the property of people and life security, as: the spark that electric equipment electric leakage produces may lead to fire, blast, get an electric shock and also likely cause personal injury, therefore, the detection of electrical leakage of electric equipment is just seemed particularly important.
Utility model content
The utility model overcomes the deficiency that prior art exists, and technical matters to be solved is: provide a kind of consumer that can detect to leak electricity and the detection of electrical leakage warning circuit carrying out alarm.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of detection of electrical leakage warning circuit, comprise rectification circuit Q1, time-base integrated circuit chip IC 1 and loudspeaker BL1, be connected with signals collecting end a1 after the forward ac input end series resistor R1 of described rectification circuit Q1, the negative sense ac input end of described rectification circuit Q1 is connected with signals collecting end a2, the forward dc output terminal of described rectification circuit Q1 is connected with the positive pole of diode D1, be connected with the control end of controllable silicon D2 after the positive pole of the negative pole shunt-wound capacitance C1 of described diode D1, the positive pole of described controllable silicon D2 is also connected with power supply VCC after connecing the power end of described time-base integrated circuit chip IC 1, the negative pole of described controllable silicon D2 is connected with a stiff end of adjustable resistance R2, the movable end of described adjustable resistance R2 is connected with the replacement end of described time-base integrated circuit chip IC 1, be connected with the replacement keyed end of described time-base integrated circuit chip IC 1 behind the positive pole of trigger end shunt-wound capacitance C2 of described time-base integrated circuit chip IC 1 and one end of resistance R3, be connected with the output terminal of described time-base integrated circuit chip IC 1 after the positive pole of the other end shunt-wound capacitance C3 of described resistance R3, the negative pole of described electric capacity C3 is connected with the positive pole of described loudspeaker BL1, the negative pole of described loudspeaker BL1, the earth terminal of described time-base integrated circuit chip IC 1, the negative pole of described electric capacity C2, another stiff end of described adjustable resistance R2, the negative pole of described electric capacity C1 and the equal ground connection of negative sense DC output end of described rectification circuit Q1.
Described time-base integrated circuit chip IC 1 is NE555 chip, and 1 pin of described NE555 chip is earth terminal, 2 pin are trigger end, 3 pin are output terminal, 4 pin are held for resetting, 6 pin are replacement keyed end, 8 pin are power end; Described power supply VCC is+6V power supply.
The utility model compared with prior art has following beneficial effect:
A kind of detection of electrical leakage warning circuit in the utility model, can directly be connected with the shell of consumer or ground wire, when signals collecting end a1, a2 no signal inputs, controllable silicon D2 ends, its output voltage is less than 0.7V, the replacement end of time-base integrated circuit chip IC 1 is by enforced reset, and whole circuit is in off position, and loudspeaker BL1 not sounding rings; When signals collecting end a1 and a2 has current signal to input, controllable silicon D2 conducting, the replacement end of time-base integrated circuit chip IC 1 becomes high level, whole circuit starting of oscillation, and loudspeaker BL1 sends chimes of doom, people are reminded to take measures, with the generation of accident prevention, the utility model can measure electric leakage information fast and accurately, and can give the alarm, whole circuit structure is succinct, practical.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in more detail;
Fig. 1 is the circuit theory diagrams of a kind of detection of electrical leakage warning circuit of the utility model.
Embodiment
As shown in Figure 1, a kind of detection of electrical leakage warning circuit, comprise rectification circuit Q1, time-base integrated circuit chip IC 1 and loudspeaker BL1, be connected with signals collecting end a1 after the forward ac input end series resistor R1 of described rectification circuit Q1, the negative sense ac input end of described rectification circuit Q1 is connected with signals collecting end a2, the forward dc output terminal of described rectification circuit Q1 is connected with the positive pole of diode D1, be connected with the control end of controllable silicon D2 after the positive pole of the negative pole shunt-wound capacitance C1 of described diode D1, the positive pole of described controllable silicon D2 is also connected with power supply VCC after connecing the power end of described time-base integrated circuit chip IC 1, the negative pole of described controllable silicon D2 is connected with a stiff end of adjustable resistance R2, the movable end of described adjustable resistance R2 is connected with the replacement end of described time-base integrated circuit chip IC 1, be connected with the replacement keyed end of described time-base integrated circuit chip IC 1 behind the positive pole of trigger end shunt-wound capacitance C2 of described time-base integrated circuit chip IC 1 and one end of resistance R3, be connected with the output terminal of described time-base integrated circuit chip IC 1 after the positive pole of the other end shunt-wound capacitance C3 of described resistance R3, the negative pole of described electric capacity C3 is connected with the positive pole of described loudspeaker BL1, the negative pole of described loudspeaker BL1, the earth terminal of described time-base integrated circuit chip IC 1, the negative pole of described electric capacity C2, another stiff end of described adjustable resistance R2, the negative pole of described electric capacity C1 and the equal ground connection of negative sense DC output end of described rectification circuit Q1.
In the utility model, described time-base integrated circuit chip IC 1 is NE555 chip, and 1 pin of described NE555 chip is earth terminal, 2 pin are trigger end, 3 pin are output terminal, 4 pin are held for resetting, 6 pin are replacement keyed end, 8 pin are power end; Described power supply VCC is+6V power supply.
Particularly, after the shell of the utility model and consumer or ground wire are connected, when signals collecting end a1, a2 no signal inputs, controllable silicon D2 ends, its output voltage is less than 0.7V, the replacement end of time-base integrated circuit chip IC 1 is by enforced reset, and whole circuit is in off position, and loudspeaker BL1 not sounding rings; When signals collecting end a1 and a2 has current signal to input, controllable silicon D2 conducting, the replacement end of time-base integrated circuit chip IC 1 becomes high level, whole circuit starting of oscillation, and loudspeaker BL1 sends chimes of doom, reminds people to take measures, with the generation of accident prevention.
A kind of detection of electrical leakage warning circuit in the present embodiment, comprise rectification circuit Q1, time-base integrated circuit chip IC 1 and loudspeaker BL1, can directly be connected with the shell of consumer or ground wire, electric leakage information can be measured fast and accurately, and can give the alarm, whole circuit structure is succinct, there is outstanding substantive distinguishing features and significant progress, by reference to the accompanying drawings embodiment of the present utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from the utility model aim.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420722433.3U CN204330933U (en) | 2014-11-27 | 2014-11-27 | A kind of detection of electrical leakage warning circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420722433.3U CN204330933U (en) | 2014-11-27 | 2014-11-27 | A kind of detection of electrical leakage warning circuit |
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| Publication Number | Publication Date |
|---|---|
| CN204330933U true CN204330933U (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420722433.3U Expired - Fee Related CN204330933U (en) | 2014-11-27 | 2014-11-27 | A kind of detection of electrical leakage warning circuit |
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| Country | Link |
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| CN (1) | CN204330933U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515930A (en) * | 2014-11-27 | 2015-04-15 | 国家电网公司 | Leak current detection alarm circuit |
-
2014
- 2014-11-27 CN CN201420722433.3U patent/CN204330933U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515930A (en) * | 2014-11-27 | 2015-04-15 | 国家电网公司 | Leak current detection alarm circuit |
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| 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: 20150513 Termination date: 20201127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |