CN107843754A - A kind of electric meter box capable of realizing electricity theft prevention alarm - Google Patents
A kind of electric meter box capable of realizing electricity theft prevention alarm Download PDFInfo
- Publication number
- CN107843754A CN107843754A CN201711270077.0A CN201711270077A CN107843754A CN 107843754 A CN107843754 A CN 107843754A CN 201711270077 A CN201711270077 A CN 201711270077A CN 107843754 A CN107843754 A CN 107843754A
- Authority
- CN
- China
- Prior art keywords
- resistance
- electric capacity
- upper ends
- lower ends
- hand members
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005611 electricity Effects 0.000 title claims abstract description 21
- 230000002265 prevention Effects 0.000 title claims abstract description 11
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 16
- 239000000919 ceramic Substances 0.000 claims abstract description 12
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/04—Housings; Supporting racks; Arrangements of terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/24—Arrangements for avoiding or indicating fraudulent use
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention discloses a kind of electric meter box capable of realizing electricity theft prevention alarm, described electric capacity C7 right-hand members are connected with bridge rectifier, resistance R2 upper ends and resistance R2 ' upper ends are all connected with power pins VDD, resistance R2 lower ends and resistance R3 upper ends are all connected with resistance R4 left ends, the negative input end of resistance R4 right-hand members and adjustable resistance R5 left ends all with the four-operational amplifier LM324 in left side is connected, coil L lower ends, resistance R3 lower ends, resistance R3 ' and electric capacity C1 lower ends are all connected with bidirectional thyristor upper end, resistance R9 lower ends are connected with triode BG1 base stages, triode BG1 colelctor electrode is connected with bidirectional thyristor and resistance R10 lower ends respectively, piezoelectric ceramics one end is connected with integrated alarm circuit SGZ07 pin 10 and the piezoelectric ceramics other end is grounded.The present invention is simple in construction, and circuit is simple, and volume is also small and can arbitrarily adjust threshold values, has a wide range of application, cost is low.
Description
Technical field
The invention belongs to a kind of alarm technical field, and in particular to a kind of electric meter box capable of realizing electricity theft prevention alarm.
Background technology
Electric energy as one of important energy, be commonly applied to social production every field and social life it is each
Aspect, and be the indispensable energy in people's life.In the supply respect of electric energy, power department, which takes, implements a family expenses
The measure of the one piece of ammeter in family simultaneously replaces low capacity electricity by the transformation to distribution line and service conductor and with Large Copacity electric energy meter
The measures such as table, the conditions such as circuit, electric energy meter is no longer turned into the restraining factors of limitation residential electricity consumption, both enhanced the reliable of power supply
Property, the daily power demand of resident is met again, at the same time also substantially increase the electric energy sales volume of power supply enterprise；It is but same
Also the difficulty in terms of much electricity metering and maintenance is brought to power supply enterprise.Because electric energy meter enormous amount and distribution are not concentrated,
Phenomena such as " power stealing ", " electric leakage ", is seen everywhere, and these violation of law have had a strong impact on the normal electricity consumption of resident, while give power supply
Door causes serious economic loss, and stealing problem becomes more and more prominent.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of electric meter box capable of realizing electricity theft prevention for above-mentioned the deficiencies in the prior art
Alarm, its is simple in construction, and circuit is simple, and volume is also small and can arbitrarily adjust threshold values, has a wide range of application, cost is low.
To realize above-mentioned technical purpose, the technical scheme that the present invention takes is：
A kind of electric meter box capable of realizing electricity theft prevention alarm, wherein：Including bridge rectifier, voltage-regulator diode, bidirectional thyristor, pressure
Electroceramics, subscriber's drop end, resistance R1, resistance R2, resistance R2 ', resistance R3, resistance R3 ', resistance R4, adjustable resistance R5, resistance
R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, electric capacity C1, electric capacity C2, electric capacity C3,
Electric capacity C4, electric capacity C5, electric capacity C6, electric capacity C7, coil L, four-operational amplifier LM324, diode D1, triode BG1 and alarm
Integrated circuit SGZ07, described electric capacity C7 right-hand members are connected with bridge rectifier, and described electric capacity C6 upper ends and resistance R13 are left
End is all connected with bridge rectifier, and described resistance R13 right-hand members and voltage-regulator diode upper end are all connected with power pins VDD,
Described electric capacity C7 left ends, coil L upper ends and resistance R1 left ends is all connected with+220V pins, described resistance R2 upper ends and electricity
Resistance R2 ' upper ends are all connected with power pins VDD, and described resistance R2 lower ends and resistance R3 upper ends are all connected with resistance R4 left ends,
Negative input end of the described resistance R4 right-hand members and adjustable resistance R5 left ends all with the four-operational amplifier LM324 in left side is connected, institute
Resistance R2 ' the lower ends stated are connected with resistance R3 ' upper ends, under described coil L lower ends, resistance R3 lower ends, resistance R3 ' and electric capacity C1
End is all connected with bidirectional thyristor upper end, the four-operational amplifier of described resistance R1 right-hand members and electric capacity C1 upper ends all with left side
LM324 positive input terminal connection, the four-operational amplifier of described adjustable resistance R5 right-hand members and diode D1 left ends all with left side
LM324 output end connection, four computings of described diode D1 right-hand members, electric capacity C2 upper ends and resistance R6 upper ends all with right side are put
Big device LM324 positive input terminal connection, described resistance R7 upper ends are connected with power pins VDD, described resistance R7 lower ends with
It is connected with negative input end of the resistance R8 upper ends all with the four-operational amplifier LM324 on right side, described resistance R9 upper ends and resistance
Output end of the R11 left ends all with the four-operational amplifier LM324 on right side is connected, described resistance R9 lower ends and triode BG1 bases
Pole is connected, and described triode BG1 emitter stage is connected with subscriber's drop end and bidirectional thyristor respectively, described triode
BG1 colelctor electrode is connected with bidirectional thyristor and resistance R10 lower ends respectively, and described resistance R10 upper ends connect with electric capacity C3 right-hand members
Connect, described electric capacity C3 left ends are connected with coil L lower ends, and described piezoelectric ceramics one end is drawn with integrated alarm circuit SGZ07's
Pin 10 is connected and the piezoelectric ceramics other end is grounded.
To optimize above-mentioned technical proposal, the concrete measure taken also includes：
Above-mentioned coil L is wound on outside electric wire.
Above-mentioned electric capacity C5 both ends are connected on integrated alarm circuit SGZ07 pin 5 and pin 6 respectively.
Above-mentioned electric capacity C4 both ends are connected on integrated alarm circuit SGZ07 pin 3 and pin 4 respectively.
The present invention by signal detection, amplification, detection, compare the circuits such as control, IGBT group, alarm and form.With being wound on
Coil L outside electric wire, to obtain the exchange 50Hz signals of reflection power consumption size.Because its induced potential signal is small, put with IC1
Signal after its big rectification.R1, C1 form low pass filter, prevent that higher hamonic wave causes to malfunction into circuit in power network.R2、
R3, R2 ', R3 ' be that the same of in-phase amplifier IC1, end of oppisite phase respectively provide a midpoint potential, make it under single supply utilization, work
Make in exchange magnifying state, multiplication factor 1+R5/R4.Therefore, only become R5 cans and change multiplication factor, this pair determines control
Threshold values is particularly useful.By D1 detections, C2, R6 filter to obtain a stable direct current AC signal through IC1 amplifications
Pressure, is sent to IC2 and is compared.During normal range (NR) electricity consumption, R5 is adjusted, DC potential is less than 2V after making detection.Therefore, IC2 compares
After export low potential, make BG, 1 cut-off.Meanwhile A points are changed into low potential, SGZ07 alarms is not worked.Now, by C3, R10
The triggers circuit normal work of composition, make 50Hz alternating currents by bidirectional thyristor to customer power supply.If user power utilization amount is once
More than regulation power, then it is rectified after DC potential overturn rapidly more than 2V, IC2, output high potential.On the one hand, A points are height
Level, warning circuit work, drives piezoelectric ceramic piece ring；On the other hand, BG1 is turned on, the control pole of short circuit bidirectional thyristor
With negative electrode, turn it off.So, the function of thief-proof electric alarm has just been reached.
The advantage of the invention is that it is following some：Simple in construction, circuit is simple, and volume is also small and can arbitrarily adjust threshold values,
Have a wide range of application, cost is low.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Reference therein is：Bridge rectifier 1, voltage-regulator diode 2, bidirectional thyristor 3, piezoelectric ceramics 4, user
End of incoming cables 5, resistance R1, resistance R2, resistance R2 ', resistance R3, resistance R3 ', resistance R4, adjustable resistance R5, resistance R6, resistance R7,
Resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electricity
Hold C5, electric capacity C6, electric capacity C7, coil L, four-operational amplifier LM324, diode D1, triode BG1, integrated alarm circuit
SGZ07。
Embodiment
The embodiment of the present invention is further illustrated below in conjunction with the accompanying drawings：
A kind of electric meter box capable of realizing electricity theft prevention alarm, wherein：Including bridge rectifier 1, voltage-regulator diode 2, bidirectional thyristor
3rd, piezoelectric ceramics 4, subscriber's drop end 5, resistance R1, resistance R2, resistance R2 ', resistance R3, resistance R3 ', resistance R4, adjustable resistance
R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, electric capacity C1, electric capacity C2,
Electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, electric capacity C7, coil L, four-operational amplifier LM324, diode D1, triode BG1
With integrated alarm circuit SGZ07, described electric capacity C7 right-hand members are connected with bridge rectifier 1, described electric capacity C6 upper ends and electricity
Resistance R13 left ends are all connected with bridge rectifier 1, described resistance R13 right-hand members and the upper end of voltage-regulator diode 2 all with power pins
VDD connections, described electric capacity C7 left ends, coil L upper ends and resistance R1 left ends are all connected with+220V pins, described resistance R2
Upper end and resistance R2 ' upper ends are all connected with power pins VDD, and described resistance R2 lower ends and resistance R3 upper ends are all left with resistance R4
End connection, the negative input end of described resistance R4 right-hand members and adjustable resistance R5 left ends all with the four-operational amplifier LM324 in left side
Connection, described resistance R2 ' lower ends are connected with resistance R3 ' upper ends, described coil L lower ends, resistance R3 lower ends, resistance R3 ' and
Electric capacity C1 lower ends are all connected with the upper end of bidirectional thyristor 3, four fortune of described resistance R1 right-hand members and electric capacity C1 upper ends all with left side
Calculate amplifier LM324 positive input terminal connection, four fortune of described adjustable resistance R5 right-hand members and diode D1 left ends all with left side
Calculate amplifier LM324 output end connection, described diode D1 right-hand members, electric capacity C2 upper ends and resistance R6 upper ends all with right side
Four-operational amplifier LM324 positive input terminal connection, described resistance R7 upper ends are connected with power pins VDD, described resistance
R7 lower ends and it is connected with negative input end of the resistance R8 upper ends all with the four-operational amplifier LM324 on right side, on described resistance R9
End and output end of the resistance R11 left ends all with the four-operational amplifier LM324 on right side are connected, described resistance R9 lower ends and three poles
Pipe BG1 base stages are connected, and described triode BG1 emitter stage is connected with subscriber's drop end 5 and bidirectional thyristor 3 respectively, described
Triode BG1 colelctor electrode be connected respectively with bidirectional thyristor 3 and resistance R10 lower ends, described resistance R10 upper ends and electric capacity
C3 right-hand members are connected, and described electric capacity C3 left ends are connected with coil L lower ends, described one end of piezoelectric ceramics 4 and integrated alarm circuit
SGZ07 pin 10 is connected and the other end of piezoelectric ceramics 4 is grounded.
In embodiment, coil L is wound on outside electric wire.
In embodiment, electric capacity C5 both ends are connected on integrated alarm circuit SGZ07 pin 5 and pin 6 respectively.
In embodiment, electric capacity C4 both ends are connected on integrated alarm circuit SGZ07 pin 3 and pin 4 respectively.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
For those of ordinary skill, some improvements and modifications without departing from the principles of the present invention, the protection of the present invention should be regarded as
Scope.
Claims (4)
- A kind of 1. electric meter box capable of realizing electricity theft prevention alarm, it is characterised in that：Including bridge rectifier (1), voltage-regulator diode (2), double To IGCT (3), piezoelectric ceramics (4), subscriber's drop end (5), resistance R1, resistance R2, resistance R2 ', resistance R3, resistance R3 ', electricity Hinder R4, adjustable resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, Electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, electric capacity C7, coil L, four-operational amplifier LM324, two poles Pipe D1, triode BG1 and integrated alarm circuit SGZ07, described electric capacity C7 right-hand members are connected with bridge rectifier (1), described Electric capacity C6 upper ends and resistance R13 left ends be all connected with bridge rectifier (1), described resistance R13 right-hand members and the pole of voltage stabilizing two Pipe (2) upper end be all connected with power pins VDD, described electric capacity C7 left ends, coil L upper ends and resistance R1 left ends all with+220V Pin connects, and described resistance R2 upper ends and resistance R2 ' upper ends all be connected with power pins VDD, described resistance R2 lower ends with Resistance R3 upper ends are all connected with resistance R4 left ends, four computings of described resistance R4 right-hand members and adjustable resistance R5 left ends all with left side Amplifier LM324 negative input end connection, described resistance R2 ' lower ends are connected with resistance R3 ' upper ends, described coil L lower ends, Resistance R3 lower ends, resistance R3 ' and electric capacity C1 lower ends are all connected with bidirectional thyristor (3) upper end, described resistance R1 right-hand members and electricity Hold positive input terminal of the C1 upper ends all with the four-operational amplifier LM324 in left side to be connected, described adjustable resistance R5 right-hand members and two poles Output end of the pipe D1 left ends all with the four-operational amplifier LM324 in left side is connected, described diode D1 right-hand members, electric capacity C2 upper ends It is connected with positive input terminal of the resistance R6 upper ends all with the four-operational amplifier LM324 on right side, described resistance R7 upper ends and power supply Pin VDD connections, described resistance R7 lower ends and and negative input of the resistance R8 upper ends all with the four-operational amplifier LM324 on right side End connection, the output end of described resistance R9 upper ends and resistance R11 left ends all with the four-operational amplifier LM324 on right side are connected, Described resistance R9 lower ends are connected with triode BG1 base stages, described triode BG1 emitter stage respectively with subscriber's drop end (5) connected with bidirectional thyristor (3), described triode BG1 colelctor electrode respectively with bidirectional thyristor (3) and resistance R10 End connection, described resistance R10 upper ends are connected with electric capacity C3 right-hand members, and described electric capacity C3 left ends are connected with coil L lower ends, described Piezoelectric ceramics (4) one end be connected with integrated alarm circuit SGZ07 pin 10 and piezoelectric ceramics (4) other end be grounded.
- A kind of 2. electric meter box capable of realizing electricity theft prevention alarm according to claim 1, it is characterised in that：Described coil L is wound on Outside electric wire.
- A kind of 3. electric meter box capable of realizing electricity theft prevention alarm according to claim 1, it is characterised in that：Described electric capacity C5 both ends point Integrated alarm circuit SGZ07 pin 5 and pin 6 are not connected on.
- A kind of 4. electric meter box capable of realizing electricity theft prevention alarm according to claim 1, it is characterised in that：Described electric capacity C4 both ends point Integrated alarm circuit SGZ07 pin 3 and pin 4 are not connected on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711270077.0A CN107843754A (en) | 2017-12-05 | 2017-12-05 | A kind of electric meter box capable of realizing electricity theft prevention alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711270077.0A CN107843754A (en) | 2017-12-05 | 2017-12-05 | A kind of electric meter box capable of realizing electricity theft prevention alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107843754A true CN107843754A (en) | 2018-03-27 |
Family
ID=61663536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711270077.0A Pending CN107843754A (en) | 2017-12-05 | 2017-12-05 | A kind of electric meter box capable of realizing electricity theft prevention alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107843754A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2299349Y (en) * | 1997-03-20 | 1998-12-02 | 杨枫林 | Controller for preventing fraudulent use of electricity |
| CN207424062U (en) * | 2017-12-05 | 2018-05-29 | 国网江苏省电力公司南通供电公司 | A kind of electric meter box capable of realizing electricity theft prevention alarm |
-
2017
- 2017-12-05 CN CN201711270077.0A patent/CN107843754A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2299349Y (en) * | 1997-03-20 | 1998-12-02 | 杨枫林 | Controller for preventing fraudulent use of electricity |
| CN207424062U (en) * | 2017-12-05 | 2018-05-29 | 国网江苏省电力公司南通供电公司 | A kind of electric meter box capable of realizing electricity theft prevention alarm |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107154612A (en) | A kind of dual input circuit for electric leakage protector | |
| CN207265886U (en) | A kind of power circuit with alternating voltage detection function | |
| CN106992668A (en) | A kind of alternating current-direct current Mixed design dc source | |
| CN107635343A (en) | Input detection protection circuit and HID lamp AC electronic ballast | |
| CN207424062U (en) | A kind of electric meter box capable of realizing electricity theft prevention alarm | |
| CN106655822B (en) | Transducer control circuit | |
| CN107843754A (en) | A kind of electric meter box capable of realizing electricity theft prevention alarm | |
| CN208316578U (en) | A kind of single-phase intelligent increasing apparatus | |
| CN203871841U (en) | Small-scale residual current motion protective circuit breaker | |
| CN203774191U (en) | Power-saving type AC contactor with threshold voltage control | |
| CN207166122U (en) | The protection device and micro-capacitance sensor of a kind of grounding transformer | |
| CN206533298U (en) | Non- PT electricity getting devices with high-tension fuse | |
| CN203617104U (en) | Lightning arrester structure for balancing winding grounding | |
| CN206076956U (en) | Three-phase four-wire active filter cabinet | |
| CN205160399U (en) | A power supply unit for elevator band -type brake coil | |
| CN202930939U (en) | Intelligent type three phase electricity-saving appliance | |
| CN102637554A (en) | Frequency conversion unit used for alternating current contactor | |
| CN207801467U (en) | A kind of novel LC parallel connections current-limiting apparatus of high pressure | |
| CN106141376A (en) | The industrial frequency rectifying filtering circuitry of twin voltage inverter arc welding machine | |
| CN202523640U (en) | Variable frequency power-saving AC (Alternate Current) contactor | |
| CN206349938U (en) | A kind of synchronous rectification switch, chip and circuit | |
| CN206075453U (en) | A kind of thief-proof electric alarm circuit | |
| CN206323125U (en) | A kind of AC overvoltage crowbars with auto-lock function | |
| CN204008881U (en) | A kind of entry loop of opening that is applicable to forceful electric power alternating current-direct current intake | |
| CN203324343U (en) | Anti-electric-larceny single-phase electric energy meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180327 |
|
| RJ01 | Rejection of invention patent application after publication |