CN2084198U - Anti-electricity-theft and anti-electric shock protector - Google Patents
Anti-electricity-theft and anti-electric shock protector Download PDFInfo
- Publication number
- CN2084198U CN2084198U CN 91201794 CN91201794U CN2084198U CN 2084198 U CN2084198 U CN 2084198U CN 91201794 CN91201794 CN 91201794 CN 91201794 U CN91201794 U CN 91201794U CN 2084198 U CN2084198 U CN 2084198U
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- China
- Prior art keywords
- inductance
- watt
- hour meter
- electricity
- coil
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- Pending
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- 230000001012 protector Effects 0.000 title abstract description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 11
- 239000010703 silicon Substances 0.000 claims description 11
- 238000004804 winding Methods 0.000 claims description 11
- 206010014405 Electrocution Diseases 0.000 claims description 6
- 230000005611 electricity Effects 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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- Burglar Alarm Systems (AREA)
Abstract
The protector for preventing fraudulent use of electricity and electric shock is composed of detection circuit consisting of inductance dividing coil and inductance bus coil parallelly connected in reverse phase, and execution circuit for preventing fraudulent use of electricity and electric shock. It has the advantages of simple structure, wide control range and the like.
Description
A kind of anti-electricity-theft electrocution-proof protection device, belonging to the electric energy meter can technical field or the urgent resist technology of circuit field.
At present, adopt bright screw to be connected between the watt-hour meter gauge outfit of widespread use and the gauge outfit lid, a movable front shroud is arranged on the terminal box, be four ramps below the cover plate, electric wire promptly is connected with gauge outfit herein, because cover plate and gauge outfit lid screw expose, be easy to dismounting, electricity filching behavior is gone smoothly easily.The place that also has is concentrated watt-hour meter and is contained in the chest, and circuit comes and goes often, occurs accident easily.Chinese patent 87210003U discloses a kind of anti-electricity-theft protection against electric shock watt-hour meter, comprise testing circuit, amplifying circuit, executive circuit and audible-visual annunciator, it is one group of zero sequence electro-detection coil of serial connection between the current supply circuit of watt-hour meter, by promoting to amplify executive circuit work behind the sample detecting signal, with the cut-out power supply, thereby reach purpose anti-electricity-theft, protection against electric shock.But complex structure, the cost height, the amplifier long-term work, power consumption is many.
The purpose of this utility model is to avoid the weak point in above-mentioned original technology and a kind of anti-electricity-theft electrocution-proof protection device simple in structure is provided.
The purpose of this utility model can reach by following measure:
Anti-electricity-theft electrocution-proof protection device; form by electronic switch box and watt-hour meter; it comprises testing circuit and executive circuit; testing circuit is by being through the inductance sub-coil that advances in the watt-hour meter on the live wire and being through in the electronic switch box inductance overall coil parallel connected in reverse phase on the zero-power line and forming; be connected with the ac input end of the bridge rectifier of executive circuit again; inductance sub-coil winding one terminates on the zero line of watt-hour meter; can reduce by a lead output like this; the someone wants to remove zero line in the watt-hour meter watt-hour meter is not walked and during stealing simultaneously; can cut off the electricity supply in the same old way; stop power supply; the other end of inductance sub-coil winding and inductance overall coil winding anti-phase connection of one end; the inductance overall coil winding other end is connected on the zero-power line, and is logical with inductance sub-coil winding one termination that is connected on the watt-hour meter zero line.Executive circuit is made up of controllable silicon, execution electromagnet, switch, electric capacity, resistance, bridge rectifier, place in the electronic switch box, the dc output end of bridge rectifier is connected with the silicon controlled control utmost point, the silicon controlled anode is connected with the execution electromagnet by diode, the other end of carrying out electromagnet is connected with live wire, and the silicon controlled negative electrode is connected with zero line.
Can use an electronic switch box by the watt-hour meter in a family, also can use an electronic switch box jointly by a plurality of watt-hour meter in many families, common when using an electronic switch box at many families, be through between a plurality of inductance sub-coils of advancing in the watt-hour meter on the live wire and just be in parallel.
Principle of work is: the inductance sub-coil is to be through advancing on the live wire in the watt-hour meter, it and the inductance overall coil parallel connected in reverse phase that is through on the interior zero-power line of electronic switch box.When normal electricity consumption, the induced signal equal and opposite in direction that inductance sub-coil and inductance overall coil produce, direction is opposite, cancels each other, and does not have signal to export in the testing circuit.When stealing, the stealing loop is without watt-hour meter, be that load directly is connected on power firestreak and the zero line, the inductance sub-coil does not produce induced signal, and the inductance overall coil produces induced signal, and then testing circuit has signal output, by sending into the silicon controlled control utmost point after the bridge rectifier rectification, make the controllable silicon conducting, controllable silicon is connected with carrying out electromagnet, and carrying out the electromagnetism iron rule has electric current to pass through promptly to attract the plug-in strip outage.
When people, animal electric shock or line electrical leakage, electric current flows into people, animal by watt-hour meter or directly into ground, the inductance sub-coil has induced signal to produce, and the inductance overall coil does not have induced signal to produce, then testing circuit has electric current output, cuts off the power supply by the executive circuit lock that falls.
In that a plurality of watt-hour meter at many families are common when using an electronic switch box, the induced signal of the inductance overall coil generation on the induced signal sum that is produced on the inductance sub-coil in each watt-hour meter and the zero-power line equates.When stealing, electric shock or electric leakage, the induced signal that inductance sub-coil and inductance overall coil produce is unequal, can not cancel out each other, and then testing circuit has induced signal output, cuts off the power supply by executive circuit.
The utlity model has anti-electricity-theft, protection against electric shock and the multiple function of proof and electric leakage-proof safety, and simple in structure, cost is low, and range of control is big.
The drawing explanation of accompanying drawing:
Fig. 1 is an electric theory diagram of the present utility model
Fig. 2 is a circuit diagram of the present utility model
Fig. 3 is the inductance sub-coil parallel circuit figure on a plurality of watt-hour meter of the utility model
Embodiment is described in further detail below in conjunction with (accompanying drawing):
As shown in Figure 1 and Figure 2: anti-electricity-theft electrocution-proof protection device, to form by electronic switch box (1) and watt-hour meter (4), the electronic switch box places on the outdoor electric pole or other place away from watt-hour meter; Inductance sub-coil (3) places in the watt-hour meter (4), be through on the live wire (2), one end winding is connected on the zero line (5) of watt-hour meter (4), the other end is connected with inductance overall coil (8) winding one end, inductance overall coil (8) is located in the electronic switch box (1), be through on the zero-power line (5), the other end of this coil winding is connected on the zero-power line (5), the telefault of parallel connected in reverse phase is connected with bridge rectifier (6) output terminal, bridge rectifier (6) is connected with the control utmost point of controllable silicon (7), the negative electrode of controllable silicon (7) is connected with zero-power line (5), and anode is connected with execution electromagnet J by diode D.
When using an electronic switch box (1) jointly, just be in parallel between the inductance sub-coil (3) in its watt-hour meter (4), as shown in Figure 3 at many families.
The electronic component that the utility model uses is the ordinary electronic element, and its selection principle is as follows: controllable silicon=1A, resistance R
1=50K, resistance R
2=200K, capacitor C
1=1uF, capacitor C
2=0.1uF, telefault is with being wrapped with an iron core in the silicon steel sheet, make around enameled wire the outside, inductance overall coil and inductance sub-coil around coil turn equate.
Claims (2)
1; a kind of anti-electricity-theft electrocution-proof protection device; form by electronic switch box and watt-hour meter; it comprises testing circuit and executive circuit; executive circuit is by controllable silicon; carry out electromagnet; bridge rectifier; resistance; electric capacity is formed; it is characterized in that testing circuit is by being through the inductance sub-coil that advances in the watt-hour meter on the live wire and being through in the electronic switch box inductance overall coil parallel connected in reverse phase on the zero-power line and forming; be connected with the ac input end of the bridge rectifier of executive circuit again; inductance sub-coil winding one terminates on the zero line of watt-hour meter; the other end is connected on the zero-power line with inductance overall coil winding anti-phase connection of one end, the inductance overall coil winding other end.
2, anti-electricity-theft electrocution-proof protection device according to claim 1 is characterized in that being through between a plurality of inductance sub-coils of advancing in the watt-hour meter on the live wire and just is in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91201794 CN2084198U (en) | 1991-02-04 | 1991-02-04 | Anti-electricity-theft and anti-electric shock protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91201794 CN2084198U (en) | 1991-02-04 | 1991-02-04 | Anti-electricity-theft and anti-electric shock protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2084198U true CN2084198U (en) | 1991-09-04 |
Family
ID=4912480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91201794 Pending CN2084198U (en) | 1991-02-04 | 1991-02-04 | Anti-electricity-theft and anti-electric shock protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2084198U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012048450A1 (en) * | 2010-10-14 | 2012-04-19 | Gu Qiang | Circuit of replaceable led daylight lamp tube |
-
1991
- 1991-02-04 CN CN 91201794 patent/CN2084198U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012048450A1 (en) * | 2010-10-14 | 2012-04-19 | Gu Qiang | Circuit of replaceable led daylight lamp tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |