CN201174466Y - 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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- CN201174466Y CN201174466Y CNU200820008596XU CN200820008596U CN201174466Y CN 201174466 Y CN201174466 Y CN 201174466Y CN U200820008596X U CNU200820008596X U CN U200820008596XU CN 200820008596 U CN200820008596 U CN 200820008596U CN 201174466 Y CN201174466 Y CN 201174466Y
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- zero
- potential difference
- plug
- touch
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Abstract
The utility model discloses a two in one electricity prevention plug with a double option function for a general electric appliance. The plug is characterized in that an input end of a single chip microcomputer is connected with a zero line and earth line potential difference detection device, a live line and zero line electric current difference detection device, two simulation test touch buttons and two sets of touch switch, wherein the touch switches are used for selecting one of a switching tube, a Darlington tube, an operational amplifier and a monostable circuit in the zero line and earth line potential difference detection device, and one or all of the zero line and earth line potential difference detection device and the live line and zero line electric current difference detection device, and the touch switches have a connection function and a disconnection function. An output end of the single chip microcomputer is connected with an input end of a triode switching circuit for controlling the connection and disconnection of the live line, the earth line and plug contact pin. The simulation test touch buttons are used for testing the working state. The plug has the advantages that an electric water heater and other electric appliances cut off the live line and the earth line when the live line leaks electricity or substantially insulated and the earth line is invalid simultaneously or the earth line is electrified, and the double option function can be suitable for the needs of various electric water heaters and other various electric appliances.
Description
Technical field
The utility model 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 utility model is before the applying date; 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 really 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 and ground wire lost efficacy simultaneously or during ground wire electrification really the electric heater of weary protection user's Electrical Safety environment is brought hidden danger, use the countries and regions that are not suitable for electrical equipment imperfect earth especially and have a similar electrical equipment imperfect earth area.
Summary of the invention
The purpose of this utility model provides 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 scheme that its technical problem that solves the utility model adopts 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 relay 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, connect 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 made up 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 made up of two touch-switchs respectively, are respectively applied for to select in the zero grounding potential difference detector set final circuit a kind of or whole in a kind of and selection zero grounding potential difference detector set, live wire and the neutral line current device for detecting difference in switching tube, Darlington transistor, operational amplifier and the monostable circuit.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, provide by scm software, in order to test electric heating tube and other electrical equipment basic insulations and ground wire lost efficacy simultaneously or the situation of ground wire electrification under or electrical work state under live wire electric leakage situation, and show by the luminous tube of different colours.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 beneficial effects of the utility model are to make various electric heaters and other various electrical equipment at live wire electric leakage or basic insulation with 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 uses with the countries and regions with similar electrical equipment imperfect earth area.The actual requirement that double selection function of the present utility model 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 the monostable circuit in the zero grounding potential difference detector set final circuit, live wire and the neutral line current device for detecting difference or all make one's options, and makes the utility model 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, promptly electric heating tube and other electrical equipment basic insulations and ground wire lost efficacy simultaneously or the situation of ground wire electrification under or can operate as normal under live wire electric leakage situation.
Description of drawings
The utility model is described in further detail below by accompanying drawing.
Accompanying drawing 1 is an electrical schematic diagram of the present utility model.
Embodiment
Consult Fig. 1.Single-chip microcomputer is the 8-bit microcontroller of U.S. Microchip company among the figure.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 relay 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, connect 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 made up 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, 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 applied for and 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, live wire and the neutral line current device for detecting difference in switching tube, Darlington transistor, operational amplifier and the monostable circuit.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, provide by scm software, in order to test electric heating tube and other electrical equipment basic insulations and ground wire lost efficacy simultaneously or the situation of ground wire electrification under or electrical work state under live wire electric leakage situation, and show by the luminous tube of different colours.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 (5)
1, a kind of 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 and have 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 relay 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, connect 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 made up 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.
3, general-purpose electric appliance two-in-one against electric plug with double selection function according to claim 1, it is characterized in that two groups have to connect 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 of touch-switchs with connection and break function are made up of two touch-switchs respectively, are respectively applied for to select switching tube in the zero grounding potential difference detector set final circuit, Darlington transistor, a kind of and selection zero grounding potential difference detector set in operational amplifier and the monostable circuit, a kind of or whole in live wire and the neutral line current device for detecting difference.
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 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, provide by scm software, in order to test electric heating tube and other electrical equipment basic insulations and ground wire lost efficacy simultaneously or the situation of ground wire electrification under or electrical work state under live wire electric leakage situation, and show by the luminous tube of different colours.
5, 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 |
|---|---|---|---|
| CNU200820008596XU CN201174466Y (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 |
|---|---|---|---|
| CNU200820008596XU CN201174466Y (en) | 2008-03-20 | 2008-03-20 | General-purpose electric appliance diad anti-electricity plug with dual selection functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201174466Y true CN201174466Y (en) | 2008-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820008596XU Expired - Fee Related CN201174466Y (en) | 2008-03-20 | 2008-03-20 | General-purpose electric appliance diad anti-electricity plug with dual selection functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201174466Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101252240B (en) * | 2008-03-20 | 2013-06-19 | 谭启仁 | General-purpose electric appliance diad anti-electricity plug with dual selection functions |
-
2008
- 2008-03-20 CN CNU200820008596XU patent/CN201174466Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101252240B (en) * | 2008-03-20 | 2013-06-19 | 谭启仁 | General-purpose electric appliance diad anti-electricity plug with dual selection functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081231 |