CN204012650U - Single phase poaer supply prevention of electric shock device - Google Patents
Single phase poaer supply prevention of electric shock device Download PDFInfo
- Publication number
- CN204012650U CN204012650U CN201420345149.9U CN201420345149U CN204012650U CN 204012650 U CN204012650 U CN 204012650U CN 201420345149 U CN201420345149 U CN 201420345149U CN 204012650 U CN204012650 U CN 204012650U
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- Prior art keywords
- resistance
- thyristor
- electric shock
- power supply
- ground wire
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- Expired - Fee Related
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- 230000002265 prevention Effects 0.000 title claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 238000004804 winding Methods 0.000 claims abstract description 13
- 230000003068 static effect Effects 0.000 claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model provides single phase poaer supply prevention of electric shock device, it comprises power supply input wires terminal, zero sequence current mutual inductor, power supply output wiring terminal and ground wire and live wire, zero sequence current mutual inductor comprises former limit winding and secondary winding, first detects resistance and second detects resistance, on live wire and ground wire, be equipped with the dynamic/static contact of automatic switch, between live wire and ground wire, be connected in series tripping coil, diode and thyristor, the negative electrode of thyristor is connected with ground wire, the gate pole of thyristor and first detects resistance and is connected, on the common port of the gate leve of the first detection resistance and thyristor, be connected one end of Detection capacitance, the other end ground connection of Detection capacitance and with state the second detection resistance and be connected.Power supply prevention of electric shock device of the present utility model, in the time there is electric shock or leak current fault, has electric current to flow through in tripping coil, the electromagnetic force of generation is separated dynamic/static contact, thereby prevents that overvoltage from causing damage to household electrical appliance.
Description
Technical field
The utility model relates to circuit protection field, specifically, has related to a kind of single phase poaer supply prevention of electric shock device.
Background technology
In electricity consumption places such as family, office and places of public amusement, the single phase poaer supplies that adopt are powered more, these electricity consumption places often human body can easily directly touch the place of electric equipment, as mains switch, socket, electronic computer, television set etc., if human body touches electrical equipment shell electric leakage etc., will cause human casualty accident.How to carry out human body protection against direct contact, make the shock current that human body touches be more than or equal to safe current 6 MAHs, fast automatic deenergization, avoids the directly generation of contact electric shock casualty accident of the person, becomes the problem that people are worth thinking.In order to solve the problem of above existence, people are seeking a kind of desirable technical solution always.
Utility model content
The purpose of this utility model is for the deficiencies in the prior art, thereby a kind of single phase poaer supply prevention of electric shock device is provided.
To achieve these goals, the technical scheme that the utility model adopts is: single phase poaer supply prevention of electric shock device, it comprises power supply input wires terminal, the zero sequence current mutual inductor being connected with power supply input wires terminal, power supply output wiring terminal and connect ground wire and the live wire of described power supply input wires terminal and described power supply output wiring terminal, the zero sequence current mutual inductor of telling comprises former limit winding and secondary winding, the two ends of described secondary winding connect respectively the first detection resistance and second and detect resistance, on described live wire and described ground wire, be equipped with the dynamic/static contact of automatic switch, the tripping coil that between described live wire and described ground wire, also serial connection opens and closes for controlling described dynamic/static contact, diode and thyristor, described tripping coil one end connects the anodic bonding of described live wire and the other end and described diode, the negative electrode of described diode and the anodic bonding of described thyristor, the negative electrode of described thyristor is connected with described ground wire, the gate pole of described thyristor and described first detects resistance and is connected, on the common port of the gate leve of described the first detection resistance and described thyristor, be connected one end of Detection capacitance, the other end ground connection of described Detection capacitance and with described second detect resistance be connected.
Based on above-mentioned, described automatic switch is the single-phase automatic dropout switch of NM1-100H/3310 63-100A type.
Based on above-mentioned, the described first resistance that detects resistance is 150 Ω-200 Ω, and the described second resistance that detects resistance is 150 Ω-200 Ω, the Detection capacitance that described Detection capacitance is 2000P-2200P.
Based on above-mentioned, described tripping coil is made up of copper enamelled wire coiling 200-250 circle on coil rack.
The relative prior art of the utility model has substantive distinguishing features and progress, single phase poaer supply prevention of electric shock device specifically, in the time there is electric shock or leak current fault, the vector of each phase current is non-vanishing, fault current makes to produce magnetic flux in the annular core of zero sequence current mutual inductor, the secondary winding of zero sequence current mutual inductor produces voltage, trigger the gate pole of thyristor, by thyristor conducting, in tripping coil, there is electric current to flow through, the electromagnetic force producing is separated dynamic/static contact, thereby prevents that overvoltage from causing damage to household electrical appliance.
Brief description of the drawings
Fig. 1 is the circuit diagram of single phase poaer supply prevention of electric shock device in the utility model embodiment.
Embodiment
Below by embodiment, the technical solution of the utility model is described in further detail.
As shown in Figure 1, single phase poaer supply prevention of electric shock device, it comprises power supply input wires terminal 101, the zero sequence current mutual inductor being connected with power supply input wires terminal 101, power supply output wiring terminal 105 and connect ground wire and the live wire of described power supply input wires terminal and described power supply output wiring terminal, the zero sequence current mutual inductor of telling comprises former limit winding and secondary winding 102, the two ends of described secondary winding 102 connect respectively the first detection resistance R 1 and second and detect resistance R 2, on described live wire and described ground wire, be equipped with the dynamic/static contact 104 of automatic switch, between described live wire and described ground wire, also serial connection is used for controlling the tripping coil 103 that described dynamic/static contact 104 opens and closes, diode V2 and thyristor V1, described tripping coil 103 one end connect the anodic bonding of described live wire and the other end and described diode V2, the anodic bonding of the negative electrode of described diode V2 and described thyristor V1, the negative electrode of described thyristor V1 is connected with described ground wire, the gate pole of described thyristor V1 and described first detects resistance R 1 and is connected, on the common port of described the first detection resistance R 1 and the gate leve of described thyristor V1, be connected one end of Detection capacitance C1, the other end ground connection of described Detection capacitance C1 and with described second detect resistance R 2 be connected, described automatic switch is the single-phase automatic dropout switch of NM1-100H/3310 63-100A type.Described tripping coil is made up of copper enamelled wire coiling 200-250 circle on coil rack.The described first resistance that detects resistance is 150 Ω-200 Ω, and the described second resistance that detects resistance is 150 Ω-200 Ω, and the Detection capacitance that described Detection capacitance is 2000P-2200P, so that operating value is set in >=6mA.
The single phase poaer supply prevention of electric shock device of the present embodiment, in the time there is electric shock or leak current fault, the vector of each phase current is non-vanishing, fault current makes to produce magnetic flux in the annular core of zero sequence current mutual inductor, and the secondary winding of zero sequence current mutual inductor produces voltage, triggers the gate pole of thyristor, by thyristor conducting, in tripping coil, have electric current to flow through, the electromagnetic force of generation is separated dynamic/static contact, thereby prevents that overvoltage from causing damage to household electrical appliance.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characterictic is equal to replacement embodiment of the present utility model; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope of the utility model request protection.
Claims (4)
1. single phase poaer supply prevention of electric shock device, it is characterized in that: it comprises power supply input wires terminal, the zero sequence current mutual inductor being connected with power supply input wires terminal, power supply output wiring terminal and connect ground wire and the live wire of described power supply input wires terminal and described power supply output wiring terminal, the zero sequence current mutual inductor of telling comprises former limit winding and secondary winding, the two ends of described secondary winding connect respectively the first detection resistance and second and detect resistance, on described live wire and described ground wire, be equipped with the dynamic/static contact of automatic switch, the tripping coil that between described live wire and described ground wire, also serial connection opens and closes for controlling described dynamic/static contact, diode and thyristor, described tripping coil one end connects the anodic bonding of described live wire and the other end and described diode, the negative electrode of described diode and the anodic bonding of described thyristor, the negative electrode of described thyristor is connected with described ground wire, the gate pole of described thyristor and described first detects resistance and is connected, on the common port of the gate leve of described the first detection resistance and described thyristor, be connected one end of Detection capacitance, the other end ground connection of described Detection capacitance and with described second detect resistance be connected.
2. single phase poaer supply prevention of electric shock device according to claim 1, is characterized in that: described automatic switch is the single-phase automatic dropout switch of NM1-100H/3310 63-100A type.
3. single phase poaer supply prevention of electric shock device according to claim 2, it is characterized in that: the described first resistance that detects resistance is 150 Ω-200 Ω, the described second resistance that detects resistance is 150 Ω-200 Ω, the Detection capacitance that described Detection capacitance is 2000P-2200P.
4. single phase poaer supply prevention of electric shock device according to claim 3, is characterized in that: described tripping coil is made up of copper enamelled wire coiling 200-250 circle on coil rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345149.9U CN204012650U (en) | 2014-06-26 | 2014-06-26 | Single phase poaer supply prevention of electric shock device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345149.9U CN204012650U (en) | 2014-06-26 | 2014-06-26 | Single phase poaer supply prevention of electric shock device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204012650U true CN204012650U (en) | 2014-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420345149.9U Expired - Fee Related CN204012650U (en) | 2014-06-26 | 2014-06-26 | Single phase poaer supply prevention of electric shock device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204012650U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065033A (en) * | 2014-06-26 | 2014-09-24 | 河南开启电力实业有限公司 | Single-phase power supply electric shock protection device |
-
2014
- 2014-06-26 CN CN201420345149.9U patent/CN204012650U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065033A (en) * | 2014-06-26 | 2014-09-24 | 河南开启电力实业有限公司 | Single-phase power supply electric shock protection 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: 20141210 Termination date: 20160626 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |