CN206075453U - A kind of thief-proof electric alarm circuit - Google Patents
A kind of thief-proof electric alarm circuit Download PDFInfo
- Publication number
- CN206075453U CN206075453U CN201621087144.6U CN201621087144U CN206075453U CN 206075453 U CN206075453 U CN 206075453U CN 201621087144 U CN201621087144 U CN 201621087144U CN 206075453 U CN206075453 U CN 206075453U
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- circuit
- diode
- npn type
- type triode
- electric capacity
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- 230000005611 electricity Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract 1
- 241000256844 Apis mellifera Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
This utility model belongs to the technical field of warning circuit, and in particular to a kind of thief-proof electric alarm circuit；The technical problem of solution is：There is provided it is a kind of being capable of the relatively low power circuit of easy for installation, cost Keep Clear-High Voltage warning alert circuit；The technical scheme for adopting for：A kind of thief-proof electric alarm circuit, including touch sensor, control chip, relay KJ1 and control board, the control board is provided with power circuit, mu balanced circuit and control circuit, the outfan of the touch sensor is connected with the input of control chip, the outfan of the control chip is connected with the input of power circuit by relay KJ1, the outfan of power circuit is connected with the input of mu balanced circuit, and the outfan of the mu balanced circuit is connected with the input of control circuit；This utility model is applied to power domain.
Description
Technical field
This utility model belongs to the technical field of warning circuit, and in particular to a kind of thief-proof electric alarm circuit.
Background technology
At present, municipal administration, cell, telecommunications, electric power, rural power grids, factory, enterprise, office, heating power, fire-fighting, etc. public utility ground
Side is accomplished by installing ammeter, it is necessary to ammeter box, and usually along a terminal laying of electric power facility to family, each household is all needed electricity box
An electricity box are wanted, that is, is needed a set of ammeter box shell, therefore consumption is very big.But have many people to make a desperate move, by various modes
Sneaked current, number is paid with the electricity charge for reducing individual, wherein the phenomenon of transformation electric energy meter is especially projected, caused to power supply industry
Great economic loss, the also national normal supply order of very disruptive.Effectively electricity theft prevention, to energy saving, protects
The rights and interests of shield power supply department all have very important significance, and the anti-theft electricity technology of constantly improve electric energy meter is also power supply department and masses
Problem of concern.
Utility model content
This utility model overcomes the shortcomings of that prior art is present, and technical problem to be solved is：A kind of user is provided
Just, the relatively low thief-proof electric alarm circuit of cost.
In order to solve above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of thief-proof electric alarm circuit, bag
Touch sensor, control chip, relay KJ1 and control board are included, the control board is provided with power circuit, voltage stabilizing
Circuit and control circuit, the outfan of the touch sensor are connected with the input of control chip, the control chip it is defeated
Go out end to be connected with the input of power circuit by relay KJ1, the outfan of power circuit and the input phase of mu balanced circuit
Even, the outfan of the mu balanced circuit is connected with the input of control circuit；
The power circuit includes inductance L1 and bridge rectifier T1, mu balanced circuit include diode D1, diode D2, two
Pole pipe D3, diode D4, electric capacity C7 and electric capacity C8, control circuit include NPN type triode Q1, NPN type triode Q2 and buzzing
Device M1.
One end of the normally-closed contact KJ1.1 of the relay KJ1 is connected with power supply positive pole, and relay KJ1's is normally closed
It is connected with one end of inductance L1 after the other end series resistor R1 of contact KJ1.1, the other end of inductance L1 and one end of electric capacity C2,
The input positive terminal of bridge rectifier T1 is connected, and the other end of the electric capacity C2 is electric with the input negative terminal of bridge rectifier T1, power supply
Source negative pole is connected, and the electric capacity C1 is connected in parallel on the two ends of resistance R1；
The output plus terminal of the bridge rectifier T1 is connected with one end of electric capacity C7, the other end and the diode D1 of electric capacity C7
Negative pole, the positive pole of diode D2 be connected, the negative pole of diode D2 and the positive pole of diode D3, one end of electric capacity C8, resistance R2
One end, one end of resistance R3, the colelctor electrode of NPN type triode Q2 be connected, the negative pole of diode D3 and the positive pole of diode D4
It is connected, the other end of resistance R2 is connected with the base stage of NPN type triode Q1, the colelctor electrode of NPN type triode Q1 is with resistance R3's
The other end, the base stage of NPN type triode Q2 are connected, and the emitter stage of NPN type triode Q2 is connected with one end of buzzer M1, buzzing
The other end of device M1 and the emitter stage of NPN type triode Q1, the other end of electric capacity C8, the negative pole of diode D4, diode D1
Positive pole is connected with the output negative terminal of bridge rectifier T1.
This utility model is had the advantages that compared with prior art：
A kind of thief-proof electric alarm circuit of this utility model, including touch sensor, control chip, relay KJ1 and control
Circuit board, control board are provided with power circuit, mu balanced circuit and control circuit；Touch sensor senses extraneous letter in real time
Number, when have personnel near when, touch sensor monitors signal, and sends a signal to control chip, control chip control after
The normally-closed contact KJ1.1 of electrical equipment KJ1 disconnects, and NPN type triode Q1 is changed into cut-off from conducting, and NPN type triode Q2 is by ending change
To turn on, buzzer M1 sends chimes of doom, and this utility model can play warning function, points out to be withdrawn near personnel in time.
Description of the drawings
The utility model is described in more detail below in conjunction with the accompanying drawings；
Fig. 1 is structural representation of the present utility model；
Circuit structure diagrams of the Fig. 2 for this utility model control board；
In figure：1 is touch sensor, and 2 is control chip, and 3 is control board, and 4 is power circuit, and 5 is mu balanced circuit,
6 is control circuit.
Specific embodiment
To make purpose, technical scheme and the advantage of this utility model embodiment clearer, below will be to this utility model
Technical scheme in embodiment is clearly and completely described, it is clear that described embodiment is a part of the present utility model
Embodiment, rather than the embodiment of whole；Based on the embodiment in this utility model, those of ordinary skill in the art are without work
The every other embodiment obtained under the premise of going out creative work, belongs to the scope of this utility model protection.
As shown in Figure 1 and Figure 2, a kind of thief-proof electric alarm circuit, including touch sensor 1, control chip 2, relay KJ1
With control board 3, the control board 3 is provided with power circuit 4, mu balanced circuit 5 and control circuit 6, described to contact biography
The outfan of sensor 1 is connected with the input of control chip 2, and the outfan of the control chip 5 passes through relay KJ1 and power supply
The input of circuit 1 is connected, and the outfan of power circuit 4 is connected with the input of mu balanced circuit 5, the mu balanced circuit 5 it is defeated
Go out end to be connected with the input of control circuit 6；
The power circuit 4 includes inductance L1 and bridge rectifier T1, mu balanced circuit 5 include diode D1, diode D2,
Diode D3, diode D4, electric capacity C7 and electric capacity C8, control circuit 6 include NPN type triode Q1, NPN type triode Q2 and honeybee
Ring device M1.
One end of the normally-closed contact KJ1.1 of the relay KJ1 is connected with power supply positive pole, and relay KJ1's is normally closed
It is connected with one end of inductance L1 after the other end series resistor R1 of contact KJ1.1, the other end of inductance L1 and one end of electric capacity C2,
The input positive terminal of bridge rectifier T1 is connected, and the other end of the electric capacity C2 is electric with the input negative terminal of bridge rectifier T1, power supply
Source negative pole is connected, and the electric capacity C1 is connected in parallel on the two ends of resistance R1；
The output plus terminal of the bridge rectifier T1 is connected with one end of electric capacity C7, the other end and the diode D1 of electric capacity C7
Negative pole, the positive pole of diode D2 be connected, the negative pole of diode D2 and the positive pole of diode D3, one end of electric capacity C8, resistance R2
One end, one end of resistance R3, the colelctor electrode of NPN type triode Q2 be connected, the negative pole of diode D3 and the positive pole of diode D4
It is connected, the other end of resistance R2 is connected with the base stage of NPN type triode Q1, the colelctor electrode of NPN type triode Q1 is with resistance R3's
The other end, the base stage of NPN type triode Q2 are connected, and the emitter stage of NPN type triode Q2 is connected with one end of buzzer M1, buzzing
The other end of device M1 and the emitter stage of NPN type triode Q1, the other end of electric capacity C8, the negative pole of diode D4, diode D1
Positive pole is connected with the output negative terminal of bridge rectifier T1.
A kind of thief-proof electric alarm circuit described in the utility model, this circuit are arranged on electric pole top, when normally using,
Voltage is added in the normally-closed contact KJ1.1 of power supply Jing relay KJ1 the base stage of NPN type triode Q1, makes NPN type triode
Q1 is turned on, and then the base potential of NPN type triode Q2 is pulled low, and the cut-off of NPN type triode Q2, buzzer M1 do not work；
A kind of thief-proof electric alarm circuit described in the utility model, when normally using, power supply Jing relay KJ1's is normal
Voltage is added in closed contact KJ1.1 the base stage of NPN type triode Q1, turns on NPN type triode Q1, then NPN type triode
The base potential of Q2 is pulled low, and the cut-off of NPN type triode Q2, buzzer M1 do not work；
When there is human contact's ammeter box, touch sensor 1 monitors signal, and sends a signal to control chip 2, control
The normally-closed contact KJ1.1 of 2 control relay KJ1 of coremaking piece disconnects, and power supply cut-out, NPN type triode Q1 are changed into from conducting
Cut-off, NPN type triode Q2 are changed into conducting from cut-off, and buzzer M1 sends chimes of doom.
Power circuit 4, mu balanced circuit 5 and control circuit 6 are integrated in control by a kind of thief-proof electric alarm circuit of this utility model
On circuit board processed 3, simple structure, cost are relatively low, and can play warning function, point out the personnel for wanting stealing to withdraw in time,
Avoid causing unnecessary loss.
Finally it should be noted that：Various embodiments above is only illustrating the technical solution of the utility model, rather than which is limited
System；Although being described in detail to this utility model with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：Which still can be modified to the technical scheme described in foregoing embodiments, or to which part or whole
Technical characteristic carries out equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from this practicality new
The scope of each embodiment technical scheme of type.
Claims (2)
1. a kind of thief-proof electric alarm circuit, it is characterised in that：Including touch sensor（1）, control chip（2）, relay KJ1 and
Control board（3）, the control board（3）It is provided with power circuit（4）, mu balanced circuit（5）And control circuit（6）, institute
State touch sensor（1）Outfan and control chip（2）Input be connected, the control chip（2）Outfan pass through
Relay KJ1 and power circuit（4）Input be connected, power circuit（4）Outfan and mu balanced circuit（5）Input phase
Even, the mu balanced circuit（5）Outfan and control circuit（6）Input be connected；
The power circuit（4）Including inductance L1 and bridge rectifier T1, mu balanced circuit（5）Including diode D1, diode D2,
Diode D3, diode D4, electric capacity C7 and electric capacity C8, control circuit（6）Including NPN type triode Q1, NPN type triode Q2 and
Buzzer M1.
2. a kind of thief-proof electric alarm circuit according to claim 1, it is characterised in that：The normally closed of the relay KJ1 is touched
One end of point KJ1.1 is connected with power supply positive pole, after the other end series resistor R1 of the normally-closed contact KJ1.1 of relay KJ1
It is connected with one end of inductance L1, the other end of inductance L1 is connected with the input positive terminal of one end of electric capacity C2, bridge rectifier T1, institute
State the other end of electric capacity C2 and the input negative terminal of bridge rectifier T1, power supply negative pole are connected, the electric capacity C1 is connected in parallel on electricity
The two ends of resistance R1；
The output plus terminal of the bridge rectifier T1 is connected with one end of electric capacity C7, and the other end of electric capacity C7 is negative with diode D1
Pole, the positive pole of diode D2 are connected, the negative pole of diode D2 and the positive pole of diode D3, one end of electric capacity C8, the one of resistance R2
End, one end of resistance R3, the colelctor electrode of NPN type triode Q2 are connected, and the negative pole of diode D3 is connected with the positive pole of diode D4,
The other end of resistance R2 is connected with the base stage of NPN type triode Q1, and the colelctor electrode of NPN type triode Q1 is another with resistance R3
End, the base stage of NPN type triode Q2 are connected, and the emitter stage of NPN type triode Q2 is connected with one end of buzzer M1, buzzer M1
The emitter stage of the other end and NPN type triode Q1, the other end of electric capacity C8, the negative pole of diode D4, the positive pole of diode D1
It is connected with the output negative terminal of bridge rectifier T1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621087144.6U CN206075453U (en) | 2016-09-28 | 2016-09-28 | A kind of thief-proof electric alarm circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621087144.6U CN206075453U (en) | 2016-09-28 | 2016-09-28 | A kind of thief-proof electric alarm circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206075453U true CN206075453U (en) | 2017-04-05 |
Family
ID=58441128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621087144.6U Withdrawn - After Issue CN206075453U (en) | 2016-09-28 | 2016-09-28 | A kind of thief-proof electric alarm circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206075453U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106408811A (en) * | 2016-09-28 | 2017-02-15 | 国网山西省电力公司运城供电公司 | Electricity larceny prevention alarming circuit |
-
2016
- 2016-09-28 CN CN201621087144.6U patent/CN206075453U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106408811A (en) * | 2016-09-28 | 2017-02-15 | 国网山西省电力公司运城供电公司 | Electricity larceny prevention alarming circuit |
| CN106408811B (en) * | 2016-09-28 | 2018-07-20 | 国网山西省电力公司运城供电公司 | Thief-proof electric alarm circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170405 Effective date of abandoning: 20180720 |