CN209264792U - The intelligent electric energy meter of electronic type remote bill control by all kinds of means - Google Patents
The intelligent electric energy meter of electronic type remote bill control by all kinds of means Download PDFInfo
- Publication number
- CN209264792U CN209264792U CN201821890152.3U CN201821890152U CN209264792U CN 209264792 U CN209264792 U CN 209264792U CN 201821890152 U CN201821890152 U CN 201821890152U CN 209264792 U CN209264792 U CN 209264792U
- Authority
- CN
- China
- Prior art keywords
- circuit
- pin
- triode
- resistance
- capacitor
- 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.)
- Active
Links
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model relates to a kind of intelligent electric energy meters of electronic type remote bill control by all kinds of means, including governor circuit, LCD are shown and backlight drive circuit, metering chip circuit, infrared communication circuit, RS485 telecommunication circuit, storage circuit, CPU card deck interface circuit, magnetic latching relay switching on circuit, ESAM chip circuit and three road isolated power supply circuits；Governor circuit is electrically connected to LCD and shows and backlight drive circuit, metering chip circuit, infrared communication circuit, RS485 telecommunication circuit, storage circuit, CPU card deck interface circuit, magnetic latching relay switching on circuit and ESAM chip circuit；Magnetic latching relay switching on circuit includes diode D12, diode D16, triode V1, triode V2, triode V3, triode V4, triode V5 and triode V6；It realizes the function of remote bill control by all kinds of means, and flexibility is preferable, moreover, passing through magnetic latching relay switching on circuit, it is ensured that is operated a switch and stability when closing operation to electric energy meter, avoids impacting other circuits.
Description
Technical field
The utility model relates to a kind of single-phase electric energy meter technical field, a kind of electronic type remote bill control by all kinds of means is referred in particular to
Intelligent electric energy meter.
Background technique
Electric energy meter exchange data Primary communication with the external world and realizes, and communication mode include infrared communication, RS485 communicate and
Carrier communication.Existing electric energy meter often relies on a kind of mode and carries out meter reading, is easy to be influenced by environment, flexibility is poor；And
And existing electric energy meter often impacts other circuits, leads to monolithic stability when relay carries out breaker tripping and closing operation
Property is poor.
Therefore, in the utility model patent application, applicant has studied intensively a kind of electronic type remote bill control by all kinds of means
Intelligent electric energy meter solves the above problems.
Utility model content
For the utility model for deficiency present in the above-mentioned prior art, main purpose is to provide a kind of electronic type by all kinds of means
The intelligent electric energy meter of remote bill control, the main function of realizing remote bill control by all kinds of means, flexibility is preferable, keeps moreover, passing through magnetic
Relay switching on circuit, it is ensured that operated a switch to electric energy meter and stability when closing operation, avoid causing other circuits
It influences.
To realize above-mentioned purpose, the utility model adopts the following technical scheme:
A kind of intelligent electric energy meter of electronic type remote bill control by all kinds of means, includes governor circuit, LCD is shown and backlight drive
Circuit, metering chip circuit, infrared communication circuit, signal circuit, RS485 telecommunication circuit, storage circuit, CPU card deck
Interface circuit, magnetic latching relay switching on circuit, ESAM chip circuit and the three road isolated power supply circuits for power supply；
The governor circuit be electrically connected to LCD show and backlight drive circuit, metering chip circuit, infrared communication circuit,
Signal circuit, RS485 telecommunication circuit, storage circuit, CPU card deck interface circuit, magnetic latching relay switching on circuit
With ESAM chip circuit；
The magnetic latching relay switching on circuit include diode D12, diode D16, triode V1, triode V2,
Triode V3, triode V4, triode V5 and triode V6, the governor circuit have main control chip U1, the main control chip
U1 has master control pin 1 to master control pin 80；
Master control pin 44 passes through the base stage of resistance R52 connecting triode V1, and the collector of triode V1 is connected by resistance R61
The base stage of triode V5 is connect, the collector of triode V5 is connected with switching signal output end, and the collector of triode V1 also passes through
The emitter of resistance R54 connecting triode V4, the anode of the collector connection diode D16 of triode V4, the yin of diode D16
Pole connects switching signal output end；The base stage of triode V3 passes through the emitter of resistance R59 connecting triode V1, triode V3's
Collector connects the anode of diode D12, and the cathode of diode D12 is connected with trip signal output end, the transmitting of triode V3
The emitter of the emitter of pole connecting triode V4, triode V4 connects three road isolated power supply circuits；
Master control pin 45 passes through the base stage of resistance R53 connecting triode V2, and the collector of triode V2 is connected by resistance R60
The base stage of triode V4 is connect, the emitter of triode V3 also passes through the collector of resistance R55 connecting triode V2, triode V6's
Base stage passes through the collector of resistance R62 connecting triode V2, and the emitter of triode V6 connects trip signal output end；Triode
The collector of the emitter of V1, the emitter of triode V5, the emitter of triode V2 and triode V6 is grounded.
As a preferred embodiment, the CPU card deck interface circuit includes CARD1 Wiring port, the CARD1 wiring
Port has CARD1 pin 1 to CARD1 pin 8, and CARD1 pin 1 connects three road isolated power supply circuits, and CARD1 pin 2 is grounded,
CARD1 pin 3 connects governor circuit by resistance, and governor circuit is grounded by capacitor C56, CARD1 pin 4, CARD1 pin 5,
CARD1 pin 6 and CARD1 pin 7 are all connected with governor circuit, and CARD1 pin 8 passes through resistance R20 connection governor circuit, master control electricity
Road is grounded by capacitor C11.
As a preferred embodiment, the ESAM chip circuit includes ESAM chip U3, resistance R40, resistance R25, three poles
Pipe Q8, capacitor C29 and capacitor C30, the ESAM chip have ESAM pin 1 to ESAM pin 14, and the ESAM pin 1 connects
Ground, ESAM pin 3 and ESAM pin 13 are all connected with governor circuit, and ESAM pin 12 is grounded by capacitor C29, and ESAM pin 12 is also
By resistance R40 connection governor circuit, ESAM pin 14 is grounded by capacitor C30, and the collector connection ESAM of triode Q8 draws
Foot 14, the emitter of triode Q8 connect three road isolated power supply circuits, and the base stage of triode Q8 connects governor circuit.
As a preferred embodiment, the three roads isolated power supply circuit includes protection circuit, power transformer T1, RS485
Power communications circuit, metering units power supply circuit and master control power supply circuit, the protection circuit connection power transformer T1 are described
Power transformer T1 is separately connected RS485 power communications circuit, metering units power supply circuit and master control power supply circuit；
The master control power supply circuit includes rectifier bridge D3, polar capacitor C45, polar capacitor C62, capacitor C46, capacitor C50
Have transformer lead pin 1 to transformer lead pin 7 with voltage stabilizing chip U8, the power transformer T1, the rectifier bridge D3 has whole
Pin 1 is flowed to rectification pin 4, and the voltage stabilizing chip U8 has pressure stabilizing pin 1 to pressure stabilizing pin 3；
The connection of the transformer lead pin 7 rectification pin 1, the connection of the transformer lead pin 6 rectification pin 2, the rectification are drawn
Foot 3 rectifies pin 4 by polar capacitor C45 connection, and the rectification pin 4 is grounded, and the positive and negative end of the polar capacitor C45 is simultaneously
Join capacitor C46, the connection rectification pin 3 of pressure stabilizing pin 1, pressure stabilizing pin 1 is also grounded by capacitor C46, and pressure stabilizing pin 2 is grounded, whole
It flows the ground connection of pin 4 and rectifies the cathode that pin 4 connects polar capacitor C62, the positive output+12V voltage of polar capacitor C62, surely
Pressure pin 3 is grounded by polar capacitor C50, and pressure stabilizing pin 3 connects governor circuit.
It as a preferred embodiment, further include having DC-DC conversion circuit, the DC-DC conversion circuit includes DC-DC conversion
Chip U11, capacitor C7, resistance R15, resistance R16, inductance L1 and diode D1, the DC-DC conversion chip U11 have conversion
For pin 1 to switched pins 6, switched pins 1 pass through one end of capacitor C7 connection inductance L1, the other end output+12V electricity of inductance L1
Pressure, switched pins 2 are grounded, and switched pins 3 are grounded by resistance R16, switched pins 4 and switched pins 5 be separately connected three tunnels every
From power circuit, switched pins 6 connect the cathode of diode D1, one end of the cathode connection inductance L1 of diode D1, diode
The plus earth of D1, the other end of inductance L1 also pass through resistance R15 connection switched pins 3.
The utility model has clear advantage and beneficial effect compared with prior art, specifically:
It mainly passes through communication, realizes the function of remote bill control by all kinds of means, and flexibility is preferable, moreover, logical
Cross magnetic latching relay switching on circuit, it is ensured that operated a switch and stability when closing operation, avoided to other to electric energy meter
Circuit impacts；
Followed by, it by ESAM chip circuit and CPU card deck interface circuit, realizes the safety certification of data, improves number
According to the reliability and safety of transmission；
And overall circuit design is simple and practical, strong antijamming capability, performance are more stable, and cost is relatively low, have preferable
Economic benefit and social benefit.
In order to explain the structural features and functions of the invention more clearly, come with reference to the accompanying drawing with specific embodiment to its into
Row is described in detail.
Detailed description of the invention
Fig. 1 is the integrated circuit functional block diagram of the embodiment of the utility model；
Fig. 2 is the governor circuit schematic diagram of the embodiment of the utility model；
Fig. 3 is the magnetic latching relay switching on circuit diagram of the embodiment of the utility model；
Fig. 4 is the external relay control circuit schematic diagram of the embodiment of the utility model；
Fig. 5 is the CPU card deck interface circuit schematic diagram of the embodiment of the utility model；
Fig. 6 is the ESM chip circuit schematic diagram of the embodiment of the utility model；
Fig. 7 is three road isolated power supply circuit diagrams of the embodiment of the utility model；
Fig. 8 is the DC-DC conversion circuit schematic diagram of the embodiment of the utility model；
Fig. 9 is the RS485 telecommunication circuit schematic diagram of the embodiment of the utility model；
Figure 10 is the signal circuit schematic diagram of the embodiment of the utility model.
Figure 11 is the infrared communication circuit schematic diagram of the embodiment of the utility model；
Figure 12 is the carrier communication circuit schematic diagram of the embodiment of the utility model；
Figure 13 is the metering chip circuit diagram of the embodiment of the utility model；
Figure 14 is that the LCD of the embodiment of the utility model is shown and backlight drive circuit schematic diagram；
Figure 15 is the battery Switching power circuit diagram of the embodiment of the utility model；
Figure 16 is the key and indicator light circuit schematic diagram of the embodiment of the utility model；
Figure 17 is the relay test circuit diagram of the embodiment of the utility model；
Figure 18 is the storage circuit schematic diagram of the embodiment of the utility model.
Drawing reference numeral explanation:
10, governor circuit 20, LCD are shown and backlight drive circuit
30, metering chip circuit 31, voltage branch circuit
32, current sampling circuit 40, infrared communication circuit
50, carrier communication circuit 60, RS485 telecommunication circuit
70, storage circuit 80, ESAM chip circuit
90, three road isolated power supply circuits 91, protection circuit
92, RS485 power communications circuit 93, metering units power supply circuit
94, master control power supply circuit 111, battery Switching power circuit
112, magnetic latching relay switching on circuit 113, external relay control circuit
114, signal circuit 115, CPU card deck interface circuit
116, DC-DC conversion circuit.
Specific embodiment
The utility model is further described with specific embodiment with reference to the accompanying drawing.
As shown in Fig. 1 to Figure 18, a kind of intelligent electric energy meter of electronic type remote bill control by all kinds of means, includes governor circuit
10, LCD show and backlight drive circuit 20, metering chip circuit 30, infrared communication circuit 40, signal circuit 114,
RS485 telecommunication circuit 60, storage circuit 70, CPU card deck interface circuit 115, magnetic latching relay switching on circuit 112,
ESAM chip circuit 80 and three road isolated power supply circuits 90 for power supply, in which:
It is shown and backlight drive circuit 20, metering chip circuit as shown in Figure 1, the governor circuit 10 is electrically connected to LCD
30, infrared communication circuit 40, signal circuit 114, RS485 telecommunication circuit 60, storage circuit 70, CPU card deck interface electricity
Road 115, magnetic latching relay switching on circuit 112 and ESAM chip circuit 80；In this way, by the setting of multiple telecommunication circuits,
Communication is formed, realizes the function of remote bill control by all kinds of means, flexibility is preferable, moreover, magnetic latching relay switching on
Circuit 12 plays the role of ensuring to operate a switch to electric energy meter and stability when closing operation, avoids causing shadow to other circuits
It rings.
The realization of the expense control function of electric energy meter is divided into local and remote two ways, and two kinds of expense prosecutor formulas are supported setting and cut
It changes, local mode can be realized by solid state mediums such as CPU card, interactive terminals, long-range to realize through RS485, carrier communication, red
Outer equal virtual mediums and long-range electricity-selling system are realized.
Next, please referring to corresponding instructions attached drawing, aforementioned each circuit is explained one by one herein as follows:
As shown in figure 3, the magnetic latching relay switching on circuit 112 includes diode D12, diode D16, triode
V1, triode V2, triode V3, triode V4, triode V5 and triode V6, in the present embodiment, as shown in Fig. 2, described
There is governor circuit 10 main control chip U1, the main control chip U1 to have master control pin 1 to master control pin 80；In main control chip U1
The hardware clock circuit for setting temperature compensation function, when power failure is powered with battery, temperature compensation function equally starts, it is ensured that clock essence
The accuracy of degree.In addition, main control chip U1 is designed using built-in house dog, it is ensured that main control chip U2 is reliably worked normally, meter
The data of amount use triple backups, even if data ensure safe and sound under severe interference.
Tested alternating voltage and electric current are sent to metering chip circuit 30 after sampling with high precision to be passed through at a series of numbers
It after reason, is converted into the pulse duration frequency signal directly proportional to active power and gives main control chip U1, main control chip U1 is by pulse signal
Timesharing is carried out according to period rate to add up, and is obtained total electricity and each rate electricity, is as a result saved in storage circuit 70.Master control core
Piece U1 is completed at the same time display and the function with external progress information exchange.
Master control pin 44 passes through the base stage of resistance R52 connecting triode V1, and the collector of triode V1 is connected by resistance R61
The base stage of triode V5 is connect, the collector of triode V5 is connected with switching signal output end, and the collector of triode V1 also passes through
The emitter of resistance R54 connecting triode V4, the anode of the collector connection diode D16 of triode V4, the yin of diode D16
Pole connects switching signal output end；The base stage of triode V3 passes through the emitter of resistance R59 connecting triode V1, triode V3's
Collector connects the anode of diode D12, and the cathode of diode D12 is connected with trip signal output end, the transmitting of triode V3
The emitter of the emitter of pole connecting triode V4, triode V4 connects three road isolated power supply circuits 90.
Master control pin 45 passes through the base stage of resistance R53 connecting triode V2, and the collector of triode V2 is connected by resistance R60
The base stage of triode V4 is connect, the emitter of triode V3 also passes through the collector of resistance R55 connecting triode V2, triode V6's
Base stage passes through the collector of resistance R62 connecting triode V2, and the emitter of triode V6 connects trip signal output end；Triode
The collector of the emitter of V1, the emitter of triode V5, the emitter of triode V2 and triode V6 is grounded.
As shown in figure 4, magnetic latching relay switching on circuit 112 is also connected with external relay control circuit 113, it is described
External relay control circuit 113 includes diode D11, resistance R26, relay JDQ1, resistance RTC3 and polar capacitor
C49。
As shown in figure 5, the CPU card deck interface circuit 115 includes CARD1 Wiring port, the CARD1 Wiring port
With CARD1 pin 1 to CARD1 pin 8, CARD1 pin 1 connects three road isolated power supply circuits 90, and CARD1 pin 2 is grounded,
CARD1 pin 3 connects governor circuit 10 by resistance, and governor circuit 10 is grounded by capacitor C56, and CARD1 pin 4, CARD1 draw
Foot 5, CARD1 pin 6 and CARD1 pin 7 are all connected with governor circuit 10, and CARD1 pin 8 passes through resistance R20 connection governor circuit
10, governor circuit 10 is grounded by capacitor C11.
As shown in fig. 6, the ESAM chip circuit 80 include ESAM chip U3, resistance R40, resistance R25, triode Q8,
Capacitor C29 and capacitor C30, the ESAM chip have ESAM pin 1 to ESAM pin 14, and the ESAM pin 1 is grounded, ESAM
Pin 3 and ESAM pin 13 are all connected with governor circuit 10, and ESAM pin 12 is grounded by capacitor C29, and ESAM pin 12 also passes through
Resistance R40 connection governor circuit 10, ESAM pin 14 is grounded by capacitor C30, and the collector of triode Q8 connects ESAM pin
The emitter of 14, triode Q8 connect three road isolated power supply circuits 90, and the base stage of triode Q8 connects governor circuit 10.
As shown in fig. 7, the three roads isolated power supply circuit 90 includes protection circuit, power transformer T1, RS485 communication confession
Circuit, metering units power supply circuit and master control power supply circuit, the protection circuit connection power transformer T1, the power supply become
Depressor T1 is separately connected RS485 power communications circuit, metering units power supply circuit and master control power supply circuit；
The master control power supply circuit includes rectifier bridge D3, polar capacitor C45, polar capacitor C62, capacitor C46, capacitor C50
Have transformer lead pin 1 to transformer lead pin 7 with voltage stabilizing chip U8, the power transformer T1, the rectifier bridge D3 has whole
Pin 1 is flowed to rectification pin 4, and the voltage stabilizing chip U8 has pressure stabilizing pin 1 to pressure stabilizing pin 3；
The connection of the transformer lead pin 7 rectification pin 1, the connection of the transformer lead pin 6 rectification pin 2, the rectification are drawn
Foot 3 rectifies pin 4 by polar capacitor C45 connection, and the rectification pin 4 is grounded, and the positive and negative end of the polar capacitor C45 is simultaneously
Join capacitor C46, the connection rectification pin 3 of pressure stabilizing pin 1, pressure stabilizing pin 1 is also grounded by capacitor C46, and pressure stabilizing pin 2 is grounded, whole
It flows the ground connection of pin 4 and rectifies the cathode that pin 4 connects polar capacitor C62, the positive output+12V voltage of polar capacitor C62, surely
Pressure pin 3 is grounded by polar capacitor C50, and pressure stabilizing pin 3 connects governor circuit 10.By the setting of voltage stabilizing chip U8, guarantee
The stability of the vdd voltage of output.
As shown in figure 8, further including having DC-DC conversion circuit 116, the DC-DC conversion circuit 116 is converted including DC-DC
Chip U11, capacitor C7, resistance R15, resistance R16, inductance L1 and diode D1, the DC-DC conversion chip U11 have conversion
For pin 1 to switched pins 6, switched pins 1 pass through one end of capacitor C7 connection inductance L1, the other end output+12V electricity of inductance L1
Pressure, switched pins 2 are grounded, and switched pins 3 are grounded by resistance R16, switched pins 4 and switched pins 5 be separately connected three tunnels every
From power circuit 90, switched pins 6 connect the cathode of diode D1, one end of the cathode connection inductance L1 of diode D1, two poles
The plus earth of pipe D1, the other end of inductance L1 also pass through resistance R15 connection switched pins 3.
As shown in figure 9, the RS485 telecommunication circuit 60 includes optocoupler D14, optocoupler D21, optocoupler D13, RS485 chip
U10, resistance R89, resistance R100, resistance R82, resistance R91, resistance R4, resistance R90, resistance R92, resistance R93, thermistor
RT2, transition diode VD1,485 output A terminals and 485 output B terminals, in this embodiment, optocoupler D14, optocoupler D21 and optocoupler
The current limliting of D13 three front and back end and the resistance value of pull-up resistor, it should be noted that being carried out according to different optocoupler models, varying environment temperature
Matching is adjusted, to guarantee the reliability of signal transmission.
As shown in Figure 10, signal circuit 114 includes power test pulse signal transmission circuit, multi-functional signal biography
It transmits electricity road, RS485 signal circuit, the power test pulse signal transmission circuit includes optocoupler D8 and optocoupler D17, described
Multi-functional signal circuit includes optocoupler D4, and RS485 signal circuit includes optocoupler D15 and optocoupler D12.
As shown in figure 11, infrared communication circuit 40 includes infrared receiving terminal U6, resistance R77, capacitor C41, capacitor C42, three
Pole pipe Q2, resistance R80, resistance R78, resistance R79 and infrared transmitting tube LED5, infrared receiving terminal U6 receive (wave after infrared signal
Special rate is that 1200), the demodulated governor circuit 10 that is sent to receives data；Governor circuit 10 is modulated to the oscillation of 38kHz, passes through
Infrared transmitting tube LED5 transmitting.
As shown in figure 12, the governor circuit is also connected with carrier communication circuit 117, realizes carrier communication and channel radio
News.As shown in figure 13, the metering chip circuit includes metering chip U2, voltage branch circuit and for connecting single-phase fire
The current sampling circuit 32 of line, single-phase zero curve, shown governor circuit 10 connect metering chip U2, and the metering chip U2 connects respectively
It is connected to voltage branch circuit 31 and current sampling circuit 32；
The current sampling circuit 32 includes single-phase firewire current sampling circuit, the single-phase firewire current sampling circuit packet
Resistance R24, resistance R56, resistance R57, capacitor C31, capacitor C32, resistance R97 and resistance R96 have been included, the manganese copper diverter
Two output ends are connect with one end of one end of resistance R56, resistance R57 respectively, and one end of resistance R56 is connected by resistance R24
One end of one end of resistance R57, resistance R56 connects simulation ground by resistance R97, and one end of resistance R57 connects simulation by resistance R96
The other end on ground, resistance R56 connects simulation ground by capacitor C31, and the other end of resistance R57 connects simulation ground, resistance by capacitor C32
The other end of R56 and the other end of resistance R57 are separately connected metering chip circuit 3030.The single-phase firewire current sampling circuit
32 for sampling the electric current at manganese copper diverter both ends, by by resistance R24, resistance R56, resistance R57, resistance R97 and
The circuit of resistance R96 composition is divided, and capacitor C31 and capacitor C32 are output to metering chip U2 after being filtered.Load current
It flows through manganese copper diverter and generates current sampling signal voltage, access to metering chip U2.
The voltage branch circuit 31 includes for connecting the resistance R83 of zero curve and being sequentially connected in series the resistance of resistance R83
R84, resistance R85, resistance R86, resistance R87, the resistance R87 connection metering chip circuit 30.
The metering chip circuit is connect by Phototube Coupling with governor circuit signal, and Electro Magnetic Compatibility is improved, meanwhile,
It also ensures that metering chip circuit independence steady operation, is not influenced by the communication interface of governor circuit.
By metering chip circuit, so that electric energy meter is with the following functions:
A, the function of measuring of positive active energy and reversed active energy, can store its data, and can setting group accordingly
Close active energy.The default value of factory is combination active energy (combination active energy=forward direction active energy+reversed active electricity
Can).
B, has the function of time-sharing measurement, active energy amount is added up respectively by the corresponding period, stores total, point, peak, flat, paddy
Electric flux.
C, 12 months total electric energy and each rate electric flux can be stored；When data storage boundary moment is the beginning of the month zero, or
The integral point moment in monthly No. 1 to No. 28.
D, outage misses clearing moment, completion account day electric energy data when powering on, at most nearest 12 times.
As shown in figure 14, it is shown by LCD and the backlight LED1 of backlight drive circuit, realizes warning function.Using back
The mode that light lamp LED1 is lighted carries out light alarm, and alarm ends automatically after alert event restores normal, wherein alert event packet
It is reversed (except twocouese) to include power, battery undervoltage etc..
It as shown in figure 15, further include having the battery Switching power circuit 111, the battery switching circuit includes resistance
R18, battery BT1 and soldering opening J4, the soldering opening J4 are connection soldering opening and battery power consumption detection mouth.
As shown in figure 16, further include having key and indicator light circuit, include pulse indicator light LED4, tripping indicator light
LED2, resistance R44, resistance R51, aobvious key KEY2 is followed and tail-hood uncaps and detects interface KEY1.
It as shown in figure 17, further include having relay test circuit, the relay test circuit includes resistance R68, electricity
Hinder R69, resistance R70, resistance R71, diode D6, optocoupler D7 and resistance R21, resistance R1, it should be noted that before and after optocoupler D7
The current limliting at end and the resistance value of pull-up resistor need to be carried out according to different optocoupler models, different voltages grade and varying environment temperature
Matching is adjusted, to guarantee the reliability of model transmission.
As shown in figure 18, the storage circuit 70 includes storage chip U5 and capacitor C40, the model of the storage chip U5
For FM24C512, it to be used for the data such as storing electricity, mailing address, table number, logout.By storage circuit 70, have following
Data storage:
A, electric energy data when permanently record electric energy meter resets the generation moment of event and resets.
B, record programming total degree, nearest 10 times programming at the time of, operator's code, program item Data Identification.
C, total degree when school (do not include broadcast) when recording school, at the time of when nearest 10 schools, operator's code.
D, the total degree of power down is recorded, at the time of nearest 10 power down occur and terminate.
E, recording nearest 10 times, remotely control is operated a switch and nearest 10 times remotely control combined floodgate event, records drawing, combined floodgate event
The data such as moment and electric flux occur.
F, game clock lid total degree, the generation of nearest 10 game clock lid event, finish time are recorded.
It should be noted that integrated circuit is designed and manufactured using SMT, hot air reflux weldering, solder wave process, guarantee quality
Reliably.Also there is electric energy meter timing to freeze, instantaneously freeze, arrange to freeze, freeze day to freeze five freezing functions with integral point.
In conclusion the utility model designing points are, mainly pass through communication, realizes remote by all kinds of means
Journey takes the function of control, and flexibility is preferable, moreover, passing through magnetic latching relay switching on circuit, it is ensured that operate a switch to electric energy meter
With stability when closing operation, avoid impacting other circuits；
Followed by, it by ESAM chip circuit and CPU card deck interface circuit, realizes the safety certification of data, improves number
According to the reliability and safety of transmission；
And overall circuit design is simple and practical, strong antijamming capability, performance are more stable, and cost is relatively low, have preferable
Economic benefit and social benefit.
The above is only the utility model preferred embodiment, not appoints to the technical scope of the utility model
What is limited, therefore any trickle amendment made by the above technical examples according to the technical essence of the present invention, equivalent variations
With modification, it is still within the scope of the technical solutions of the present invention.
Claims (5)
1. a kind of intelligent electric energy meter of electronic type remote bill control by all kinds of means, it is characterised in that: include that governor circuit, LCD are shown
And backlight drive circuit, metering chip circuit, infrared communication circuit, signal circuit, RS485 telecommunication circuit, storage circuit,
Electricity is isolated in CPU card deck interface circuit, magnetic latching relay switching on circuit, ESAM chip circuit and three tunnels for power supply
Source circuit；
The governor circuit is electrically connected to LCD and shows and backlight drive circuit, metering chip circuit, infrared communication circuit, signal
Transmission circuit, RS485 telecommunication circuit, storage circuit, CPU card deck interface circuit, magnetic latching relay switching on circuit and
ESAM chip circuit；
The magnetic latching relay switching on circuit includes diode D12, diode D16, triode V1, triode V2, three poles
Pipe V3, triode V4, triode V5 and triode V6, the governor circuit have main control chip U1, the main control chip U1 tool
There is master control pin 1 to master control pin 80；
Master control pin 44 passes through the base stage of resistance R52 connecting triode V1, and the collector of triode V1 passes through resistance R61 connection three
The base stage of pole pipe V5, the collector of triode V5 are connected with switching signal output end, and the collector of triode V1 also passes through resistance
The emitter of R54 connecting triode V4, the anode of the collector connection diode D16 of triode V4, the cathode of diode D16 connect
Engage lock signal output end；The base stage of triode V3 passes through the emitter of resistance R59 connecting triode V1, the current collection of triode V3
Pole connects the anode of diode D12, and the cathode of diode D12 is connected with trip signal output end, and the emitter of triode V3 connects
The emitter of triode V4 is connect, the emitter of triode V4 connects three road isolated power supply circuits；
Master control pin 45 passes through the base stage of resistance R53 connecting triode V2, and the collector of triode V2 passes through resistance R60 connection three
The base stage of pole pipe V4, the emitter of triode V3 also pass through the collector of resistance R55 connecting triode V2, the base stage of triode V6
By the collector of resistance R62 connecting triode V2, the emitter of triode V6 connects trip signal output end；Triode V1's
The collector of emitter, the emitter of triode V5, the emitter of triode V2 and triode V6 is grounded.
2. the intelligent electric energy meter of electronic type according to claim 1 remote bill control by all kinds of means, it is characterised in that: the CPU
Card deck interface circuit includes CARD1 Wiring port, and the CARD1 Wiring port has CARD1 pin 1 to CARD1 pin 8,
CARD1 pin 1 connects three road isolated power supply circuits, and CARD1 pin 2 is grounded, and CARD1 pin 3 connects governor circuit by resistance,
Governor circuit is grounded by capacitor C56, and CARD1 pin 4, CARD1 pin 5, CARD1 pin 6 and CARD1 pin 7 are all connected with master
Circuit is controlled, CARD1 pin 8 is grounded by resistance R20 connection governor circuit, governor circuit by capacitor C11.
3. the intelligent electric energy meter of electronic type according to claim 1 remote bill control by all kinds of means, it is characterised in that: the ESAM
Chip circuit includes ESAM chip U3, resistance R40, resistance R25, triode Q8, capacitor C29 and capacitor C30, the ESAM chip
With ESAM pin 1 to ESAM pin 14, the ESAM pin 1 is grounded, and ESAM pin 3 and ESAM pin 13 are all connected with master control electricity
Road, ESAM pin 12 are grounded by capacitor C29, and for ESAM pin 12 also by resistance R40 connection governor circuit, ESAM pin 14 is logical
Capacitor C30 ground connection is crossed, the collector of triode Q8 connects ESAM pin 14, and the emitter of triode Q8 connects three road isolated power supplies
The base stage of circuit, triode Q8 connects governor circuit.
4. the intelligent electric energy meter of electronic type according to claim 1 remote bill control by all kinds of means, it is characterised in that: three tunnel
Isolated power supply circuit includes protection circuit, power transformer T1, RS485 power communications circuit, metering units power supply circuit and master
Power supply circuit is controlled, the protection circuit connection power transformer T1, the power transformer T1 are separately connected RS485 power communications
Circuit, metering units power supply circuit and master control power supply circuit；
The master control power supply circuit includes rectifier bridge D3, polar capacitor C45, polar capacitor C62, capacitor C46, capacitor C50 and steady
Chip U8, the power transformer T1 is pressed to have transformer lead pin 1 to transformer lead pin 7, there is the rectifier bridge D3 rectification to draw
Foot 1 is to rectification pin 4, and the voltage stabilizing chip U8 is with pressure stabilizing pin 1 to pressure stabilizing pin 3；
The connection of the transformer lead pin 7 rectification pin 1, the connection of the transformer lead pin 6 rectification pin 2, the rectification pin 3 are logical
Polar capacitor C45 connection rectification pin 4 is crossed, the rectification pin 4 is grounded, the positive and negative end shunt capacitance of the polar capacitor C45
C46, the connection rectification pin 3 of pressure stabilizing pin 1, pressure stabilizing pin 1 are also grounded by capacitor C46, and pressure stabilizing pin 2 is grounded, and rectifies pin 4
Ground connection and the cathode for rectifying the connection of pin 4 polar capacitor C62, the positive output+12V voltage of polar capacitor C62, pressure stabilizing pin 3
It is grounded by polar capacitor C50, pressure stabilizing pin 3 connects governor circuit.
5. the intelligent electric energy meter of electronic type according to claim 1 remote bill control by all kinds of means, it is characterised in that: further include having
DC-DC conversion circuit, the DC-DC conversion circuit include DC-DC conversion chip U11, capacitor C7, resistance R15, resistance R16, electricity
Feeling L1 and diode D1, the DC-DC conversion chip U11 has switched pins 1 to switched pins 6, and switched pins 1 pass through capacitor
One end of C7 connection inductance L1, the other end output+12V voltage of inductance L1, switched pins 2 are grounded, and switched pins 3 pass through resistance
R16 ground connection, switched pins 4 and switched pins 5 are separately connected three road isolated power supply circuits, and switched pins 6 connect diode D1's
Cathode, one end of the cathode connection inductance L1 of diode D1, the other end of the plus earth of diode D1, inductance L1 also pass through electricity
Hinder R15 connection switched pins 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821890152.3U CN209264792U (en) | 2018-11-16 | 2018-11-16 | The intelligent electric energy meter of electronic type remote bill control by all kinds of means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821890152.3U CN209264792U (en) | 2018-11-16 | 2018-11-16 | The intelligent electric energy meter of electronic type remote bill control by all kinds of means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209264792U true CN209264792U (en) | 2019-08-16 |
Family
ID=67555088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821890152.3U Active CN209264792U (en) | 2018-11-16 | 2018-11-16 | The intelligent electric energy meter of electronic type remote bill control by all kinds of means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209264792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114400171A (en) * | 2022-01-06 | 2022-04-26 | 南京觅丹电子信息有限公司 | Electric operating mechanism with 485 interface |
-
2018
- 2018-11-16 CN CN201821890152.3U patent/CN209264792U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114400171A (en) * | 2022-01-06 | 2022-04-26 | 南京觅丹电子信息有限公司 | Electric operating mechanism with 485 interface |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106952411B (en) | Single-phase cost control intelligent electric energy meter | |
| CN206451295U (en) | A kind of single-phase charge-controlled intelligent electric meter | |
| CN102074076B (en) | Intelligent electric meter centralized recharging terminal and control method thereof | |
| CN103916292B (en) | digital substation switch online monitoring system based on IEC61850 standard | |
| CN202222007U (en) | Vehicle-loaded terminal of engineering mechanical remote monitoring system | |
| CN102955438A (en) | Vehicular terminal of engineering machinery remote monitoring system and control method | |
| CN202693653U (en) | Single-phase fee control intelligent electric energy meter | |
| CN209264792U (en) | The intelligent electric energy meter of electronic type remote bill control by all kinds of means | |
| CN109818423A (en) | A kind of intelligent O&M distribution system based on management mode of taking the initiative in offering a hand | |
| CN108990240A (en) | A kind of street lamp intelligent monitoring device and its monitoring method | |
| CN107064587A (en) | A kind of electric energy meter circuit | |
| CN202153235U (en) | Bidirectional direct current electric energy meter | |
| CN201060223Y (en) | Single-phase smart card type anti-theft electricity pre-payment electrical energy meter | |
| CN208721739U (en) | Single-phase electric energy metering device with defencive function | |
| CN102708624A (en) | Prepayment electricity utilization management terminal | |
| CN205920160U (en) | Detection module of communication electrical power generating system branch road state of insulation | |
| CN108417002A (en) | A kind of high-performance MBUS collectors for water meter | |
| CN107238744A (en) | A kind of power information collection and repeater system and equipment based on Internet of Things | |
| CN110068364A (en) | A kind of Wetland Environment monitoring number adopts circuit | |
| CN201754291U (en) | Sing-phase electronic prepayment dual-control electric energy meter | |
| CN207867610U (en) | Accurately system is shared in metering for the electricity charge under multi-user shared ammeter scene | |
| CN202693680U (en) | M-BUS three-phase electronic type electric energy meter | |
| CN204855748U (en) | Treatment circuit is patrolled and examined to battery based on many channel switching of ARM platform | |
| CN209264791U (en) | Single-phase charge-controlled intelligent electric meter with three road isolated power supply functions | |
| CN204833682U (en) | Instrument bus converting circuit with short circuit self preservation protects function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |