CN2216682Y - Static single-phase pre-paying electric energy meter - Google Patents
Static single-phase pre-paying electric energy meter Download PDFInfo
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- CN2216682Y CN2216682Y CN 94231028 CN94231028U CN2216682Y CN 2216682 Y CN2216682 Y CN 2216682Y CN 94231028 CN94231028 CN 94231028 CN 94231028 U CN94231028 U CN 94231028U CN 2216682 Y CN2216682 Y CN 2216682Y
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- circuit
- voltage
- utility
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- multiplier
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Abstract
The utility model relates to a static single phase pre-paying electric energy meter. The utility model is characterized in that integrated circuit blocks are connected to form a voltage transformation circuit and an electric voltage pulse width modulation circuit, a current transforming circuit is connected with a multiplier, then is respectively connected with a register, an electricity quantity processor and the output terminal of a detecting pulse via a voltage-to-frequency converter and a counting frequency divider, an electricity selling card is connected with an electricity quantity processor, and the electricity quantity processor is connected with a control switch. The utility model also comprises an over current protection circuit and a reversed phase locking misconnection circuit, and the utility model can also prevent electric larceny. The electric voltage pulse width modulation circuit comprises a triangle generator which can raise the accuracy. The utility model has the advantages of simple structure, small size, light weight, low power consumption, stable performance, high precision, strong anti-interference ability, convenient management of electricity consumption, and low cost. The electrically sale in a prepaying way can be realized, and the utility model can automatically control a plurality of functions such as the data collection, the data treatment, etc.
Description
The utility model relates to a kind of electric energy meter kilsyth basalt, and the spy is state type single-phase pre-payment electric energy meter kilsyth basalt in addition.
Existing induction type electric energy meter, price is low, but its function is simple, the requirement of incompatibility electricity consumption modern management, and its price height of existing state type single-phase pre-payment electric energy meter, and reliability and precision also are further improved.
The purpose of this utility model is to design value adaptation electricity consumption modern management, price is low, precision is high, and volume is little, the state type prepayment meter that performance is good.
Technical solution of the present utility model is a state type single-phase type prepayment meter, constitute by device movement circuit plate in the watchcase, movement circuit transfers stretch circuit to be connected with multiplier by voltage conversion circuit through voltage, current conversion circuit is connected with multiplier, multiplier is connected to frequency-dividing counter through Voltage-to-frequency Converter, and frequency-dividing counter is connected to register respectively, electric weight processor and test pulse output terminal, the sale of electricity card is connected with the electric weight processor, and the electric weight processor is connected with gauge tap; Current conversion circuit is connected with gauge tap through flow process holding circuit, anti-phase exclusive circuit respectively; Comprise a triangular-wave generator that is connected into by integrated circuit block LM324 and triode in the voltage conversion circuit.
The electric weight treatment circuit is mainly connected to form by integrated circuit block CC4518, M45026, CD4011, CD4081, CD4002, wherein M45026 and CD4011 are connected into decoding circuit sale of electricity card and are connected to form by integrated package M45026, CD4011, M45027, and wherein M45027 is connected into coding circuit.Current foldback circuit is made of integrated package TL082.
Controller [1] can comprise voltage sampling apparatus and current sampling device.
Description of drawings is as follows:
Fig. 1 the utility model movement circuit connection side block diagram
Fig. 2 the utility model movement circuit connection layout
The utility model further specifies as follows in conjunction with specific embodiments referring to accompanying drawing:
The state type single-phase pre-payment electric energy meter is made of rectangle shell inner-box device movement circuit plate, and movement circuit is connected to form by following circuit, and movement circuit mainly adopts integrated circuit block to constitute.
By integrated circuit block IC
13-2, two-way crystalline substance is explained pipe T
1, complex light fulgurite N
25Be connected into controller [1], T
1Be connected in the power circuit IC
13-24 input end A
1, A
2, A
3, A
4Respectively by A
1, A
4Be connected to electric weight processor [12].A
2Meet the integrated circuit block IC in the anti-phase exclusive circuit [5]
4-1Output terminal, A
3Take over the integrated circuit block IC in the stream holding circuit [4]
4-2Output terminal.
By integrated circuit block IC
2-2, IC
2-3, IC
2-4, triode DG
3And resistance R
15-21Be connected into voltage conversion circuit [2], its input end is by IC
2-2An input end through resistance R
15Be connected to voltage sampling signal U, voltage conversion circuit [2] has two output terminals, and an output terminal is by IC
2-4Output is connected to voltage and transfers stretch circuit [6], and another output terminal is by IC
2-2Output is through resistance R
18Be connected to current conversion circuit [3].Voltage sampling signal U is provided by the voltage sampling apparatus that is connected to power circuit.
By integrated circuit block IC
1-1, IC
1-2, IC
2-1, triode DG
1And resistance R
1, R
2, R
3, R
4, R
5, R
6, R
7, R
8, R
12, capacitor C
1Be connected to current conversion circuit [3], current converter circuit [3] has two input ends, and an one input end is by IC
1-1An input end through resistance R
1I is connected with current sampling signal, and its another input end is by IC
2-1An input end via the resistance R
12, R
18Be connected to the IC of voltage conversion circuit [2]
2-2Output terminal.Current conversion circuit [3] has two output terminals, and an output terminal hangs IC
1-2Output terminal is via R
7, R
8, C
1The T mode filter that is connected into is exported, and is connected to the IC of voltage conversion circuit [2]
2-2Output terminal.Current conversion circuit [3] has two output terminals, and an output terminal is by IC
1-2Output terminal is via R
7, R
8, C
1The T mode filter output that is connected into is connected to multiplier [8], and another output terminal is R
7, R
8, C
1The wave filter mid point is connected to current foldback circuit [4] and anti-phase exclusive circuit [5] respectively.Current sampling signal I is provided by the current sampling device that is connected to in the circuit, can with voltage sampling apparatus, current sampling device with gauge tap [1] built in.
By integrated circuit block IC
3-1, IC
3-2, IC
3-3, triode DG
4, DG
5, and resistance R
23-35, potentiometer W
4, capacitor C
5, C
6Be connected into voltage and transfer stretch circuit [6], its input end is a resistance R
23, R
22Its connection point f, be connected to the IC of voltage conversion circuit [2]
2-4Output terminal, it is IC that voltage is transferred the output terminal of stretch circuit [6]
3-2Output terminal, through resistance R
25Be connected to the input end DG of multiplier [8]
2Substrate.
Voltage is transferred in the stretch circuit [6] and is comprised by integrated circuit block IC
3-1, IC
3-3, triode DG
4, DG
5, resistance R
31-36, potentiometer W
4, capacitor C
6The triangular-wave generator that is connected into [7], its signal are taken from the power frequency pulsation point f behind the voltage commutation, claim to take advantage of IC by IC
3-1Obtain a square wave, again by R
31, C
6Discharge and recharge and form the triangle sawtooth wave, then through IC
3-3The emitter follower output of forming, this sawtooth wave stable performance, symmetry is good, because it is a power frequency, and does not adopt high frequency, with the frequency adaptation of time division multiplier [8], thereby guaranteed the high precision of multiplier, and avoided stray capacitance, the ill effect that stray inductance etc. are caused by high frequency.
By integrated circuit block IC
1-3, IC
14, triode DG
2And resistance R
9, R
10, capacitor C
3Be connected into multiplier [8].
By integrated circuit block IC
1-3, IC
1-4Triode DG
2And resistance R
9, R
10, capacitor C
3Be connected into multiplier [8], its input end has two, DG in the input end
2Substrate, transfer the output terminal of stretch circuit [6] to connect with voltage, another input end is IC
1-3An input end, with the R of current conversion circuit [3]
7, R
8, C
3Filter output connects, the output terminal IC of multiplier [8]
1-4Export, be connected to the input end B of Voltage-to-frequency Converter [9].
By integrated circuit block IC
3-4, IC
5, diode D
1, D
7, and diode D
2-D
5The constant-current source circuit of forming, stabilivolt DW, resistance R
13, R
14, R
26-30, potentiometer W
1, capacitor C
4Be connected into voltage-frequency conversion circuit [9], its input end is a resistance R
13With potentiometer W
1Common some B, with the IC of multiplier [8]
1-4Output terminal connect, its output terminal is by IC
5Output, meet frequency-dividing counter [10] IC
6Input end; Frequency-dividing counter [10] is by IC
6Form, its output terminal is connected to register [11], test pulse output terminal E, electric weight processor [12] respectively.
Register [11] is made of inductance L 1, one termination zero, the other end and frequency-dividing counter [10] IC
6Output terminal connect.
By integrated circuit block IC
7, IC
11, IC
12, IC
13-1, IC
14, IC
15Be connected into electric weight processor [12], its input end is IC
7Input end, be connected to frequency-dividing counter [10] IC
6Output terminal, its output terminal is IC
12Two output terminals A
1With A
4, be connected to the IC of gauge tap [1] respectively
13-2Two corresponding input ends, another input end of electric weight processor [12] is IC
11Input end, the integrated circuit (IC) of it and sale of electricity card [13]
10Output terminal link to each other.
Sale of electricity card [13] is by integrated circuit (IC)
8, IC
9, IC
10Connect and compose IC
8Input end be the pre-payment signal input part, its output terminal is IC
10Output terminal, with the IC of electric weight processor [12]
11Input end be connected.
In sale of electricity card [13] and electric weight processor [12], adopted IC
10With IC
11, IC
12The coding of forming, decoding circuit have carried out maintaining secrecy reliably to the transmission of data, have guaranteed card, epiphase symbol, and data security is imported reliably.
By integrated circuit block IC
4-2, capacitor C
2, potentiometer W
2Be connected into current foldback circuit [4], its IC
4-2Input end and R
7, R
8, C
1The mid point of the T mode filter that is connected into connects, IC
4-2Another input termination W
2Mid point, W
2Two ends are connected with power supply ± Vc.IC
4-2Output terminal is through C
2Connecting to neutral, IC
4-2This output terminals A
3Meet the IC of pair of control switch [1]
13-2Corresponding input end A
3The effect of current foldback circuit [4] is the T that does not make gauge tap [1] when electric current I surpasses maximum allowed current immediately
1Disconnect, but make the T of gauge tap [1]
1Escaping the impact load time-delay disconnects; adjust and approximately delaying time about 3 seconds; delay time is capable of hoisting to be adjusted by stream holding circuit [4]; so both can protect not damaged by excess current; can avoid the temporary impact power supply again is failure to actuate; thereby after the operation of electrical equipment normal starting, the disconnections such as assurance refrigerator, through 2-6 minutes time-delay T
1Automatically close and close, the electricity consumption loop enters operate as normal.
By integrated circuit block IC
4-1, potentiometer W
1Be connected into anti-phase exclusive circuit [5], its IC
4-1An input end be connected to R
7, R
8, C
1The mid point of the T mode filter that is connected into, IC
4-1Another input termination potentiometer W
1Mid point, W
1Two terminations ± Vc power supply, IC
4-1Output terminals A
2Be connected to the IC of gauge tap [1]
13-2Corresponding input end A
2
The integrated circuit block model is as follows:
IC
1-1～IC
1-4, IC
2-1～IC
2-4, IC
3-1～IC
3-4Be LM324; IC
4-1～IC
4-3Be TL082, IC
5Be LH311, IC
6, IC
7, IC
15Be CC4518, IC
8, IC
11, be H45026, IC
9, IC
12Be CD4011, IC
10Be M45027, IC
13Be CD4081, I14M is CD4002.
Principle of work of the present utility model is as follows: after state type payment in advance electric energy meter is installed, and the bidirectional thyristor T of its gauge tap [1]
1Be connected in the electricity consumption loop, adopt device and current sampling device to obtain voltage signal U and current signal I by voltage respectively by voltage changer [2] and power pack [3], voltage signal U together sends into multiplier [8] through voltage regulator circuit [6] furnishing voltage width signal and current signal I and phase differential thereof, by multiplier [8] its signal voltage of becoming the reflection electric energy of multiplying each other being sent into Voltage-to-frequency Converter [9] becomes electric power signal voltage and is frequency signal, form and the corresponding train of impulses of tested electric energy, send into counting branch frequency [10] again, after frequency-dividing counter [10] is handled, signal is delivered to register [11] respectively, electric weight processor [12], with test pulse output terminal E, electric weight processor [12] with electric power signal with compare from the sale of electricity storage capability signal of sale of electricity card [13], electric weight processor [12] sends signal and sends into gauge tap [1], bidirectional thyristor T when depositing outside the electric weight as nothing
1Power circuit is cut off in not conducting, on the contrary T then
1Conducting, normal electricity consumption meter degree, electric energy meter degree is undertaken by register [11].
Current foldback circuit [4] is obtained current signal from current conversion circuit [3], with the overcurrent protection current value ratio of adjusting, then send signal and send into gauge tap [1], T if surpass setting valve by its delay circuit time-delay
1Disconnect power circuit, the purpose of time-delay is when guaranteeing normal electricity consumption, not cut off power supply under the excess current of instantaneous appearance, for example when refrigerator start, and the energy normal power supply, and can the fault excess current be protected, delay time can be regulated.
Storing the forward purchasing electric weight on the electronics sale of electricity card, by interface, input IC
10In latch, this moment A
4Be low level, A
3Also be low level, gauge tap is closed a floodgate and is sent electricity, during electricity consumption, and IC
5In train of impulses send into IC
10Middle counting is when the electric weight of being counted equals IC
10In latch the forward purchasing electric weight time (electric weight of being purchased in advance uses up) A
3Be high level, gauge tap promptly disconnects power failure, in data transmission procedure by IC
10, IC
11, IC
12Coding, the decoding circuit formed have carried out reliable encryption, have guaranteed that the table card conforms to data security.
Anti-phase exclusive circuit [5] is in order to prevent error connection and stealing.
The utility model has the advantage of that it mainly adopts integrated circuit block to consist of movement circuit, makes Designs simplification, volume is little, and is in light weight, low in energy consumption, stable and reliable for performance, precision height, anti-doing The ability of disturbing is strong, but the pre-payment current collection makes things convenient for the management of power use, has anti-electricity-theft overcurrent protection data The various functions such as acquisition process be suitable for automatic control, and cost are low.
Claims (2)
1. state type single-phase pre-payment electric energy meter, constitute by device movement circuit plate in the watchcase, movement circuit is connected with multiplier [8] through voltage regulator circuit [6] by voltage conversion circuit [2], current conversion circuit [3] is connected with multiplier [8], multiplier [8] is connected to frequency-dividing counter [10] through Voltage-to-frequency Converter [9], and frequency-dividing counter [10] is connected to register [11], electric weight processor [12] and test pulse output terminal E respectively.Sale of electricity card [13] is connected with electric weight processor [12], and electric weight processor [12] is connected with gauge tap [1], and current conversion circuit [3] is connected with gauge tap [1] through overcurrent holding circuit [4], anti-phase exclusive circuit [5] respectively, and its feature is as follows:
(1) voltage is transferred in the stretch circuit [6] and is comprised a triangular-wave generator that is connected into by integrated circuit block LM324 and triode.
(2) electric weight treatment circuit [12] is mainly connected to form by integrated circuit block CC4518, M45026, CD4011, CD4081, CD4002, and wherein M45026 and CD4011 are connected into decoding circuit.
(3) sale of electricity card [13] is connected to form by integrated circuit block M45026, CD4011, M45027, and wherein M45027 is connected into coding circuit.
(4) current foldback circuit [4] is made of integrated circuit block TL082.
2. state type single-phase pre-payment electric energy meter according to claim 1 is characterized in that its controller [1] can comprise voltage sampling apparatus and current sampling device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94231028 CN2216682Y (en) | 1994-12-17 | 1994-12-17 | Static single-phase pre-paying electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94231028 CN2216682Y (en) | 1994-12-17 | 1994-12-17 | Static single-phase pre-paying electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2216682Y true CN2216682Y (en) | 1996-01-03 |
Family
ID=33842986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94231028 Expired - Fee Related CN2216682Y (en) | 1994-12-17 | 1994-12-17 | Static single-phase pre-paying electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2216682Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825687B (en) * | 2009-03-06 | 2012-06-13 | 鸿富锦精密工业（深圳）有限公司 | Electricity detecting device |
| TWI386671B (en) * | 2009-04-10 | 2013-02-21 | Hon Hai Prec Ind Co Ltd | Electric charge detecting apparatus |
-
1994
- 1994-12-17 CN CN 94231028 patent/CN2216682Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825687B (en) * | 2009-03-06 | 2012-06-13 | 鸿富锦精密工业（深圳）有限公司 | Electricity detecting device |
| TWI386671B (en) * | 2009-04-10 | 2013-02-21 | Hon Hai Prec Ind Co Ltd | Electric charge detecting apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |