CN2622712Y - Full electronic and multifunctional prefeeing watt-hour meter - Google Patents
Full electronic and multifunctional prefeeing watt-hour meter Download PDFInfo
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- CN2622712Y CN2622712Y CN 03243093 CN03243093U CN2622712Y CN 2622712 Y CN2622712 Y CN 2622712Y CN 03243093 CN03243093 CN 03243093 CN 03243093 U CN03243093 U CN 03243093U CN 2622712 Y CN2622712 Y CN 2622712Y
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Abstract
The utility model belongs to a full electronic and multifunctional prefeeing watt-hour meter, consisting of a housing and a control circuit. The circuit at least consists of an electricity energy measurement unit and a data processing display unit. The electricity energy measurement unit is connected with the three-phase circuit of the users to sample and operate the electric current and the voltage and output two pulse signals in direct proportion to the watthour and varhour electric energy and input to the CPU of the data processing display unit for data processing. The utility model has the advantages that the prefeeing can be controlled in according to the watthour electric energy to solve the problem of electricity fee charging and meter-reading. Meanwhile, varhour electricity energy, watthour, varhour and the maximum power can be measured and inbuilt clock can measure the electricity balance on the meter-reading day. Consequently, the electricity management authorities can know well the energy consumption of the users apart from the prefeeing and meter-reading absence and give rewards and punishments to users in according to the varhour electricity consumption or the maximum required electricity. Furthermore, electricity fee preference can be given in light of the monthly watthour electricity energy so as to enhance the technological means of the marketing in electricity consumption.
Description
Technical field
The utility model belongs to the electric energy meter field, particularly relates to the multi-functional prepayment meter of full-electronic of a kind of electric energy metrical and electricity consumption clearing.
Background technology
Existing prepayment meter in the prior art, but present prepayment meter can only be according to the control of paying of the metering numerical value of active energy and forward purchasing numerical value, have the following disadvantages: the one, electricity charge rate is fixed, and dump energy that can't the his-and-hers watches meter when running into the electricity charge and adjusting increases income or moves back the valency of making up the difference; The 2nd, can't carry out electricity consumption preferential policies such as ladder electricity price; The 3rd, can't examine user's reactive energy consumption and power factor, part has the also only meritorious maximum demand of maximum demand function.
The utility model content
The purpose of this utility model is the deficiency in the background technology, and designs a kind of meritorious, reactive energy that can measure simultaneously, writes down meritorious, idle, applied power requirement and according to the prepayment meter of markers record data.
The technical scheme that the utility model adopts for achieving the above object is: it comprises housing and control circuit the multi-functional prepayment meter of full-electronic.It is characterized in that comprising at least in the said circuit electric energy metrical unit and data processing display unit.Said electric energy metrical unit connects user's three-phase electricity consumption electric current and voltage is carried out electric current, voltage sample, sampled signal divides two-way input ic for energy metering to handle and computing, promptly gain merit respectively and handle with the reactive energy metering with to sampled signal, output direct ratio and two pulse signals meritorious, reactive energy, this pulse signal drives register and shows meritorious, reactive energy aggregate-value, inputs to the data processing display unit simultaneously and carries out data processing.The CPU of said data processing display unit is in order to handle the pulse signal that metering units provides, finish the data processing that pre-payment is controlled, maximum demand calculates, data are regularly stored, the real-time clock output required time data that are connected with CPU, LED is used to show dump energy, the physical connection of realization of IC-card interface and CPU and IC-card, storer are used for storage of electrical energy data and ammeter parameter.
The utility model has the advantages that, carrying out pre-payment control according to active energy, outside solving the electric fees charging problem and exempting to check meter, measure idle power consumption and meritorious, idle, applied power maximum demand simultaneously, and use onboard clock to install the fixed of that month electricity consumption data of day surplus of checking meter.Make management of power use department can grasp the user power utilization situation so on the one hand in prepaid, when exempting to check meter; Can carry out electricity charge rewarding and punishing according to idle power consumption or the data based regulation of maximum demand on the other hand, it is preferential also can to carry out the electricity charge according to meritorious power consumption size of the moon, has increased the technological means of electricity consumption marketing.
In addition, the utility model is the full-electronic electric energy meter, but the machine shape of design and installation dimension and existing triphase induction type electric energy meter are identical, can directly replace the induction electric energy table in original batch meter (cabinet).And implement the utility model and can substitute active electric energy meter and the reactive energy-meter that original needs are installed respectively.
Be described in detail with reference to accompanying drawing below with reference to embodiment of the present utility model.
Description of drawings
The multi-functional prepayment meter theory diagram of Fig. 1 full-electronic;
The multi-functional prepayment meter schematic appearance of Fig. 2 full-electronic;
Fig. 3 electric energy meter structure wiring layout;
Fig. 4 electric energy metrical element circuit schematic diagram;
The schematic diagram of Fig. 5 data processing display unit.
Embodiment
Present embodiment provides the multi-functional prepayment meter of a kind of three-phase and four-line.This shows inner structure as shown in Figure 3, and wherein 1 is drain pan, and the 2nd, bracing frame, the 3rd, electric energy metrical unit, the 4th, data processing display unit, the 5th, loam cake, the 6th, reactive energy register, the 7th, active energy register, the 8th, light-emitting diode display, the 9th, IC-card interface.Machine shape is identical with 241 serial triphase induction type electric energy meters with installation dimension.
Figure 1 shows that theory diagram of the present utility model.A, B, C three-phase electricity and zero line N carry out electric current, voltage sample through current transformer, voltage transformer (VT), and sampled signal divides two-way to gain merit respectively and the reactive energy metering.Metering units is handled output direct ratio and pulse signal meritorious, reactive energy to sampled signal.This pulse signal drives register on the one hand and shows meritorious, reactive energy aggregate-value, offers CPU simultaneously and carries out data processing.CPU handles the pulse signal that metering units provides, and realizes multiple functions such as pre-payment control, maximum demand calculate, data are regularly stored.Real-time clock is used to provide CPU required time signal; LED is used to show dump energy, reminds the user in time to purchase; The physical connection of realization of IC-card interface and CPU and IC-card; Storer is because the storage of electrical energy data.
Electric energy metrical unit schematic diagram as shown in Figure 4, U11 is electric energy computation chip (selecting SA9105 for use), U7 is operational amplifier OP07.Gather the electricity consumption electric current of user's three-phase with threephase current transformer, by ACUR, BCUR, CCUR terminal input U11, three-phase voltage is also imported U11 by AVOL, BVOL, CVOL terminal after passing through the resistor network dividing potential drop, after U11 samples to electric current and voltage and calculates, by the pulse signal of A-F 3 output direct ratios and active energy.The metering of reactive energy realizes with the identical circuit of foregoing circuit by one group after voltage, current signal are carried out phase shift, constitutes 45 degree phase-shift circuits by U7 operational amplifier OP07; The A-F3 pulse signal shows that through frequency division rear drive register accumulative total is meritorious, reactive energy.
Data processing unit comprises CPU (D1 selects the PIC single-chip microcomputer for use), storer D2 (selecting 93C46 for use) and clock chip D3 (selecting RS372A for use), two groups of 3 charactron N5N6, shift register D4 (74LS164) as shown in Figure 5.Meritorious and the idle pulse of metering units output is input to CPU, cumulative calculation goes out actual electricity consumption active energy and reactive energy, when being zero, the active energy number that the electric weight number of having purchased in advance that CPU will preserve successively decreases and uses, dump energy, realize pre paid functionality by the outage of XT6 control external agency.Write down and calculated the maximum applied power umber of pulse of one time 15 minutes slippages in the time simultaneously every 5 minutes.Clock chip D3 and clock crystal oscillator X2, building-out capacitor C6C10 and backup battery BATTERY form real time clock circuit, provide maximum demand to calculate and the required markers of data surplus monthly, so this electric energy meter can be according to the predefined surplus of checking meter when day zero gained merit this month power consumption, idle power consumption, three power maximum demands of idle apparent umber of pulse of gaining merit.Preserve 12 months data altogether, when the user bought the forward purchasing electric weight, data passed to Utilities Electric Co. with purchasing electric IC-card.The data presentation of data processing display unit is used two registers and six LED.
Claims (6)
1 one kinds of multi-functional prepayment meters of full-electronic comprise housing and control circuit, it is characterized in that comprising at least in the said circuit electric energy metrical unit and data processing display unit; Said electric energy metrical unit connects user's three-phase electricity consumption electric current and voltage is sampled, sampled signal divides two-way input ic for energy metering to handle and computing, output direct ratio and two pulse signals meritorious, reactive energy, this pulse signal drives register and shows meritorious, reactive energy aggregate-value, inputs to the data processing display unit simultaneously and carries out data processing; The CPU of said data processing display unit is in order to handle the pulse signal that metering units provides, finish the data processing that pre-payment is controlled, maximum demand calculates, data are regularly stored, the real-time clock output required time data that are connected with CPU, LED is used to show dump energy, the IC-card interface is realized the physical connection of CPU and IC-card, and storer is used for storage of electrical energy data and ammeter parameter.
2 according to the multi-functional prepayment meter of the described full-electronic of claim 1, it is characterized in that the electricity consumption electric current of said electric energy metrical unit with threephase current transformer collection user three-phase, by ACUR, BCUR, CCUR terminal input U11 electric energy computation chip SA9105, three-phase voltage is also imported U11 electric energy computation chip SA9105 by AVOL, BVOL, CVOL terminal after passing through the resistor network dividing potential drop, after U11 samples to electric current and voltage and calculates, by the pulse signal of A-F3 output direct ratio and active energy; The metering of reactive energy realizes with the identical circuit of foregoing circuit by one group after voltage, current signal are carried out phase shift, constitutes 45 degree phase-shift circuits by U7 operational amplifier OP07; The A-F3 pulse signal shows that through frequency division rear drive register accumulative total is meritorious, reactive energy.
3 according to claim 1 or the multi-functional prepayment meter of 2 described full-electronics, it is characterized in that comprising in the said data processing display unit D1 CPU single-chip microcomputer, D2 storer 93C46, D3 clock chip RS372A, two groups of 3 charactron N5N6 and D4 shift register 74LS164; Meritorious and the idle pulse of metering units output is input to CPU, cumulative calculation goes out actual electricity consumption active energy and reactive energy, when being zero, the active energy number that the electric weight number of having purchased in advance that CPU will preserve successively decreases and uses, dump energy, realize pre paid functionality by the outage of XT6 terminal control external agency.
4 according to the multi-functional prepayment meter of the described full-electronic of claim 3, it is characterized in that in the said data processing display unit, clock chip D3 and clock crystal oscillator X2, building-out capacitor C6C10 and backup battery BATTERY form real time clock circuit, provide maximum demand to calculate and the required markers of data surplus monthly, according to the predefined surplus of checking meter when day zero gained merit this month power consumption, idle power consumption, three power maximum demands of idle apparent umber of pulse of gaining merit.
5 according to the multi-functional prepayment meter of the described full-electronic of claim 4, it is characterized in that the data presentation of said data processing display unit is used two registers and six LED.
6 according to claim 1 or the multi-functional prepayment meter of 4 described full-electronics, it is characterized in that said machine shape is identical with 241 serial triphase induction type electric energy meters with installation dimension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03243093 CN2622712Y (en) | 2002-12-30 | 2003-04-04 | Full electronic and multifunctional prefeeing watt-hour meter |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02294098.7 | 2002-12-30 | ||
| CN02294098 | 2002-12-30 | ||
| CN 03243093 CN2622712Y (en) | 2002-12-30 | 2003-04-04 | Full electronic and multifunctional prefeeing watt-hour meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2622712Y true CN2622712Y (en) | 2004-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03243093 Expired - Fee Related CN2622712Y (en) | 2002-12-30 | 2003-04-04 | Full electronic and multifunctional prefeeing watt-hour meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2622712Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1680782B (en) * | 2004-12-09 | 2010-04-28 | 北京纳思电器有限公司 | Charging method and system after metering |
| CN101754506A (en) * | 2008-12-12 | 2010-06-23 | 深圳市鑫汇科科技有限公司 | Electromagnetic oven power automatic calibration method and circuit |
| CN104460621A (en) * | 2014-12-06 | 2015-03-25 | 韩少茹 | Intelligent home power consumption management system based on smart power grid |
| CN108398594A (en) * | 2018-03-08 | 2018-08-14 | 广西网冠电气有限公司 | A kind of intelligent simulation three-phase electric energy meter |
| CN113345166A (en) * | 2020-02-18 | 2021-09-03 | 安科瑞电气股份有限公司 | Guide rail type prepayment electric energy meter |
-
2003
- 2003-04-04 CN CN 03243093 patent/CN2622712Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1680782B (en) * | 2004-12-09 | 2010-04-28 | 北京纳思电器有限公司 | Charging method and system after metering |
| CN101754506A (en) * | 2008-12-12 | 2010-06-23 | 深圳市鑫汇科科技有限公司 | Electromagnetic oven power automatic calibration method and circuit |
| CN101754506B (en) * | 2008-12-12 | 2013-03-20 | 深圳市鑫汇科科技有限公司 | Electromagnetic oven power automatic calibration method and circuit |
| CN104460621A (en) * | 2014-12-06 | 2015-03-25 | 韩少茹 | Intelligent home power consumption management system based on smart power grid |
| CN104460621B (en) * | 2014-12-06 | 2017-06-06 | 深圳点亮新能源技术有限公司 | A kind of smart home power consuming administrative system based on intelligent grid |
| CN108398594A (en) * | 2018-03-08 | 2018-08-14 | 广西网冠电气有限公司 | A kind of intelligent simulation three-phase electric energy meter |
| CN113345166A (en) * | 2020-02-18 | 2021-09-03 | 安科瑞电气股份有限公司 | Guide rail type prepayment electric energy meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TIANJIN SENT ELECTRIC POWER ELECTRONICS FACTORY Free format text: FORMER OWNER: TIANJIN SENT HIGH-TECH DEVELOPMENT CO.,LTD. Effective date: 20100108 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100108 Address after: Suitable North Road, science and Technology Industrial Zone, Beichen District, Tianjin, China: 300402 Patentee after: Tianjin Shente Electric Power Electronic Factory Address before: Suitable North Road, science and Technology Industrial Zone, Beichen District, Tianjin, China: 300402 Patentee before: Shente High-New Technology Development Co., Tianjin City |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040630 Termination date: 20110404 |