CN101252240B - General-purpose electric appliance diad anti-electricity plug with dual selection functions - Google Patents
General-purpose electric appliance diad anti-electricity plug with dual selection functions Download PDFInfo
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- CN101252240B CN101252240B CN 200810087391 CN200810087391A CN101252240B CN 101252240 B CN101252240 B CN 101252240B CN 200810087391 CN200810087391 CN 200810087391 CN 200810087391 A CN200810087391 A CN 200810087391A CN 101252240 B CN101252240 B CN 101252240B
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- live wire
- wire
- potential difference
- zero line
- circuit
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- 230000009977 dual effect Effects 0.000 title 1
- 238000004088 simulation Methods 0.000 claims abstract description 9
- 230000007935 neutral effect Effects 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 8
- 238000005485 electric heating Methods 0.000 claims description 7
- 239000003086 colorant Substances 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract 6
- 230000005611 electricity Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The invention relates to a two-in-one electric-proof plug with double selection functions for universal appliances, being characterized in that an input end of a singlechip is connected with a detection device of potential difference between a zero line and an earth wire, a detection device of current difference between a live wire and the zero line, two simulation test touch keys and two sets of switching tubes, a Darlington transistor, an operational amplifier of a final circuit of the detection device of potential difference between the zero line and the earth wire, one kind of the switching tubes, the Darlington transistor, the operational amplifier of a monostable circuit of the detection device of potential difference between the zero line and the earth wire and one or both of the detection device of potential difference between the zero line and the earth wire and the detection device of current difference between the live wire and the zero line are selectively connected with a touch switch having the functions of connection and disconnection, an output end of the singlechip is connected with an input end of a triode switching circuit and is used to control the connection/disconnection between the live wire, the earth wire and the plug connection sheet. The simulation test touch keys are used to test the working state. The two-in-one electric-proof plug with double selection functions for universal appliances has the advantages that the plug can shut off the live wire and the earth wire when the live wire leaks away or is basically insulated and the earth wire fails at the same time or when the earth wire has electricity, and the double selection functions are applicable to different requirements of various electric water heaters and other appliances.
Description
Technical field
The present invention relates to a kind of two-in-one anti-plug, particularly a kind of general-purpose electric appliance two-in-one against electric plug with double selection function.
Background technology
the present patent application a few days ago, the anti-plug that prior art is applied in electric heater and other electrical equipment is actually a kind of earth leakage protective device, only electric leakage has defencive function to live wire, but to electric heating tube and other electrical equipment basic insulations with ground wire lost efficacy simultaneously or true weary protection during ground wire electrification, do not meet especially with at the end of Year 2008 the issue international electric heater safety standard, to the electric heating tube basic insulation with ground wire lost efficacy simultaneously or the electric heater of true weary protection during ground wire electrification brings hidden danger to user's Electrical Safety environment, be not suitable for especially electrical equipment imperfect earth and the countries and regions use with similar electrical equipment imperfect earth area.
Summary of the invention
The purpose of this invention is to provide a kind of general-purpose electric appliance two-in-one against electric plug with double selection function.
To be the single-chip processor i/o input touch key and two groups with zero grounding potential difference detector set, live wire and neutral line current device for detecting difference, two simulation tests to the technical solution adopted for the present invention to solve the technical problems has to be connected with the touch-switch of break function and be connected, the single-chip processor i/o output is connected with the input of transistor switching circuit, the output of transistor switching circuit is connected with relay, and Control is connected on the break-make of live wire, ground wire and the plug contact pin of its contact.Zero grounding potential difference detector set is connected across between ground wire and zero line, connected to form step by step by the transformer and rectifying tube, voltage-stabiliser tube, electric capacity of voltage regulation and the final circuit that are connected across between ground wire and zero line, final circuit is comprised of switching tube, Darlington transistor, operational amplifier and monostable circuit respectively, and final circuit is connected with the single-chip processor i/o input respectively.Two groups have connection and are connected with the single-chip processor i/o input respectively with touch-switch one end of break function, and be connected with positive source by resistance, its common end grounding, two groups have the touch-switchs that connect with break function and are comprised of two touch-switchs respectively, are respectively used to select in the zero grounding potential difference detector set final circuit a kind of in switching tube, Darlington transistor, operational amplifier and monostable circuit and select a kind of or whole in zero grounding potential difference detector set, live wire and neutral line current device for detecting difference.Simulation test touches key and comprises zero line-ground wire potential difference analog signal and live wire and neutral line current differential mode analog signal, provided by scm software,, and show by the luminous tube of different colours in the situation that electric heating tube and other electrical equipment basic insulations and ground wire lost efficacy simultaneously or ground wire electrification or the electrical work state in live wire electric leakage situation in order to test.Live wire and neutral line current device for detecting difference are connected to form by double operational integrated circuit and magnetic ring coil, and live wire and zero line pass magnetic ring coil, and the double operational integrated circuit is connected with the single-chip processor i/o input.
The invention has the beneficial effects as follows and make various electric heaters and other various electrical equipment at live wire electric leakage or basic insulation and ground wire lost efficacy simultaneously or cut off live wire and ground wire during ground wire electrification, meeting will be in the international electric heater safety standard of issuing at the end of Year 2008, Electrical Safety environment to the user when electric heating tube basic insulation and ground wire inefficacy simultaneously or ground wire electrification and live wire electric leakage brings guarantee, is specially adapted to electrical equipment imperfect earth and the countries and regions use with similar electrical equipment imperfect earth area.The actual requirement that double selection function of the present invention can be tackled different electrical equipment is to a kind of in a kind of and zero grounding potential difference detector set in switching tube, Darlington transistor, operational amplifier and monostable circuit in the zero grounding potential difference detector set final circuit, live wire and neutral line current device for detecting difference or all make one's options, and makes the present invention be applicable to various electric heaters and other various electrical equipment.Simulation test touches key in order to test the operating state of various electric heaters and other various electrical equipment, namely in the situation that electric heating tube and other electrical equipment basic insulations and can ground wire loses efficacy simultaneously or ground wire electrification or work in live wire electric leakage situation.
Description of drawings
The invention will be further described below by accompanying drawing.
Accompanying drawing 1 is electrical schematic diagram of the present invention.
Embodiment
Consult Fig. 1.In figure, single-chip microcomputer is the 8-bit microcontroller of U.S. Microchip company.Embodiment is PIC16C57.
As shown in the figure, single-chip processor i/o input and zero grounding potential difference detector set, live wire and neutral line current device for detecting difference, two simulation tests touch key and two groups to have to be connected with the touch-switch of break function and is connected, the single-chip processor i/o output is connected with the input of transistor switching circuit, the output of transistor switching circuit is connected with relay, and Control is connected on the break-make of live wire, ground wire and the plug contact pin of its contact.Zero grounding potential difference detector set is connected across between ground wire and zero line, connected to form step by step by the transformer and rectifying tube, voltage-stabiliser tube, electric capacity of voltage regulation and the final circuit that are connected across between ground wire and zero line, final circuit is comprised of switching tube, Darlington transistor, operational amplifier and monostable circuit respectively, and final circuit is connected with the single-chip processor i/o input respectively.Two groups have connection and are connected with the single-chip processor i/o input respectively with touch-switch one end of break function, and be connected with positive source by resistance, its common end grounding, the present embodiment definition touch-switch is connected to 1, be broken as 0, four kind of various combination and be 00,01,10,11 and 01,10,11 combinations wherein be respectively used to select in the zero grounding potential difference detector set final circuit a kind of or whole in a kind of and zero grounding potential difference detector set in switching tube, Darlington transistor, operational amplifier and monostable circuit, live wire and neutral line current device for detecting difference.Simulation test touches key and comprises zero line-ground wire potential difference analog signal and live wire and neutral line current differential mode analog signal, provided by scm software,, and show by the luminous tube of different colours in the situation that electric heating tube and other electrical equipment basic insulations and ground wire lost efficacy simultaneously or ground wire electrification or the electrical work state in live wire electric leakage situation in order to test.Live wire and neutral line current device for detecting difference are connected to form by double operational integrated circuit and magnetic ring coil, and live wire and zero line pass magnetic ring coil, and the double operational integrated circuit is connected with the single-chip processor i/o input.
Claims (4)
1. general-purpose electric appliance two-in-one against electric plug with double selection function, it is characterized in that single-chip processor i/o input and zero grounding potential difference detector set, live wire and neutral line current device for detecting difference, two simulation tests touch key and two groups to have to connect and is connected with the touch-switch of break function, touch-switch one end is connected with the single-chip processor i/o input respectively, and be connected with positive source by resistance, its common end grounding, the definition touch-switch is connected to 1, be broken as 0, form 01, 10, 11 combinations such as three of grades are respectively used to select switching tube in the zero grounding potential difference detector set final circuit, Darlington transistor, a kind of and zero grounding potential difference detector set in operational amplifier and monostable trigger-action circuit, a kind of or whole in live wire and neutral line current device for detecting difference, the single-chip processor i/o output is connected with the input of transistor switching circuit, and the output of transistor switching circuit is connected with relay, and Control is connected on the break-make of live wire, ground wire and the plug contact pin of its contact.
2. the general-purpose electric appliance two-in-one against electric plug with double selection function according to claim 1, it is characterized in that zero grounding potential difference detector set is connected across between ground wire and zero line, connected to form step by step by the transformer and rectifying tube, voltage-stabiliser tube, electric capacity of voltage regulation and the final circuit that are connected across between ground wire and zero line, final circuit is comprised of switching tube, Darlington transistor, operational amplifier and monostable trigger-action circuit respectively, and final circuit is connected with the single-chip processor i/o input respectively.
3. the general-purpose electric appliance two-in-one against electric plug with double selection function according to claim 1, it is characterized in that simulation test touches key and comprises zero line-ground wire potential difference analog signal and live wire and neutral line current differential mode analog signal, provided by scm software,, and show by the luminous tube of different colours in the situation that electric heating tube and other electrical equipment basic insulations and ground wire lost efficacy simultaneously or ground wire electrification or the electrical work state in live wire electric leakage situation in order to test.
4. the general-purpose electric appliance two-in-one against electric plug with double selection function according to claim 1, it is characterized in that live wire and neutral line current device for detecting difference are connected to form by double operational integrated circuit and magnetic ring coil, live wire and zero line pass magnetic ring coil, and the double operational integrated circuit is connected with the single-chip processor i/o input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810087391 CN101252240B (en) | 2008-03-20 | 2008-03-20 | General-purpose electric appliance diad anti-electricity plug with dual selection functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810087391 CN101252240B (en) | 2008-03-20 | 2008-03-20 | General-purpose electric appliance diad anti-electricity plug with dual selection functions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101252240A CN101252240A (en) | 2008-08-27 |
| CN101252240B true CN101252240B (en) | 2013-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810087391 Expired - Fee Related CN101252240B (en) | 2008-03-20 | 2008-03-20 | General-purpose electric appliance diad anti-electricity plug with dual selection functions |
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| Country | Link |
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| CN (1) | CN101252240B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500358A (en) * | 2016-12-22 | 2017-03-15 | 佛山市顺德区奥荣电器实业有限公司 | A kind of electric heater security protection system and a kind of electric heater |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2135845Y (en) * | 1992-10-21 | 1993-06-09 | 黄克 | Full switching off and over voltage protective power socket for remote electric appliance |
| CN2655414Y (en) * | 2003-10-20 | 2004-11-10 | 郑祥衡 | Phase and amplitude discriminating electric leak relay |
| CN1741337A (en) * | 2005-07-28 | 2006-03-01 | 谭启仁 | Flag bit specification multi-control mode voltage limiting 1+1 one-chip processor electric insulated chip |
| CN201174466Y (en) * | 2008-03-20 | 2008-12-31 | 谭启仁 | General-purpose electric appliance diad anti-electricity plug with dual selection functions |
-
2008
- 2008-03-20 CN CN 200810087391 patent/CN101252240B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2135845Y (en) * | 1992-10-21 | 1993-06-09 | 黄克 | Full switching off and over voltage protective power socket for remote electric appliance |
| CN2655414Y (en) * | 2003-10-20 | 2004-11-10 | 郑祥衡 | Phase and amplitude discriminating electric leak relay |
| CN1741337A (en) * | 2005-07-28 | 2006-03-01 | 谭启仁 | Flag bit specification multi-control mode voltage limiting 1+1 one-chip processor electric insulated chip |
| CN201174466Y (en) * | 2008-03-20 | 2008-12-31 | 谭启仁 | General-purpose electric appliance diad anti-electricity plug with dual selection functions |
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| Publication number | Publication date |
|---|---|
| CN101252240A (en) | 2008-08-27 |
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Granted publication date: 20130619 |