CN203324327U - Wide-range three-phase guide rail type electric energy meter - Google Patents
Wide-range three-phase guide rail type electric energy meter Download PDFInfo
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- CN203324327U CN203324327U CN2013203199592U CN201320319959U CN203324327U CN 203324327 U CN203324327 U CN 203324327U CN 2013203199592 U CN2013203199592 U CN 2013203199592U CN 201320319959 U CN201320319959 U CN 201320319959U CN 203324327 U CN203324327 U CN 203324327U
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Abstract
The utility model discloses a wide-range three-phase guide rail type electric energy meter, comprising an SoC system integrated chip respectively and electrically connected with a communication module, a data storage module, a keyboard module, a display module, a pulse output module, a signal acquisition module and a power supply module, wherein the power supply module respectively supplies the power to the SoC system integrated chip, the communication module and the signal acquisition module. The compact and intelligent electric energy meter is convenient to mount, and achieves the integration design and centralized management of the measurement of the electric energy; simultaneously the measurement range of the electric energy meter is wide, the large dynamic impact load is accurately measured, and the line loss of electric networks is effectively reduced. On the other hand, the wide-range three-phase guide rail type electric energy meter solves the problems that the maximum load current exceeds the maximum current of the existing electric energy meter when a user needs to use more electric equipment, and avoids the waste due to necessary replacement of electric energy meters of larger current specifications. The wide-range three-phase guide rail type electric energy meter brings great convenience to the user, and better meets the market demands.
Description
Technical field
The utility model relates to a kind of electric energy meter, particularly a kind of three-phase guide rail-type electric energy meter of wide-range.
Background technology
At present, three-phase electric energy meter mainly contains wall-hanging installation electric energy meter and embedded installation electric energy meter.Not only volume is large for wall-hanging electric energy table, during installation, also needs another power distributing meter case to cause a large amount of wastings of resources; And embedded electric energy meter adopts panel type to install, wiring is very inconvenient, when the terminal electric energy metrical, can't be arranged in ammeter box.
Now also occurred the electric energy meter of some guide tracked installations on market, but majority is 4 times of journey tables, the fundamental measurement electric current of electric current is Ib, and maximum measurement range is 4Ib.Life use in order to meet the demand of electric current wide-measuring range, generally to select the reometer that Ib is larger, so also make the inaccurate gage work scope of electric energy meter increase, and due to the use of energy-saving electric appliances in a large number, family and enterprise with electricity condition may the little electric current of long time treatment, light condition, cause the electric energy meter can be for a long time in measuring inaccurate state.And along with growth in the living standard, the continuous increase of power consumption, the electric energy meter of current specification that need to be larger according to user's demand replacing Ib just meets user's needs, easily causes waste.
Summary of the invention
The utility model purpose: the problem and shortage existed for above-mentioned prior art, order of the present utility model provides a kind of volume little, easy for installation, and the wide three-phase guide rail-type of current measuring range is installed electric energy meter.
Technical scheme: for realizing above-mentioned utility model purpose, the three-phase guide rail-type electric energy meter that the technical solution adopted in the utility model is a kind of wide-range, it is characterized in that: comprise the SoC system integrated chip, described SoC system integrated chip is electrically connected to communication module, data memory module, key-press module, display module, pulse output module, signal acquisition module, power module respectively, and wherein said power module is given respectively SoC system integrated chip, communication module and signal acquisition module power supply.
Further, more accurate for the data that electric energy meter is measured, described signal acquisition module comprises voltage signal acquisition module and current signal collection module, and described voltage signal acquisition module and current signal collection module are electrically connected to the SoC system integrated chip respectively.
The SoC system integrated chip adopts the SoC system integrated chip of the 71M6543 model of MAXIM company, adopts the chip of this model, effectively reduces the volume of electric energy meter on can the degree complete at assurance function because integrated level is high.
Display module adopts wide temperature segment code type LCD, for showing parameters of electric power and energy value, coordinates key-press module to carry out the parameter setting simultaneously.
The current measuring range of current signal collection module is 0.01A～100A, has increased like this measurement range of electric current, has effectively avoided waste.
Communication module adopts 485 communication interfaces, and communication protocol can be MODBUS-RTU communication protocol or DL/T 645 communication protocols, and communication protocol is selected by key-press module and display module.
Beneficial effect: the utility model has been realized the miniaturization of electric energy meter, and intellectuality, and easy for installation can realize integrated design and the centralized management of electric energy metrical; Being designed to produce of simultaneously wide-range electric current input brought more convenience, and each specification range electric energy meter all can adopt with a product, for production get the raw materials ready bring certain convenient.And the user also need to not select when using electric energy meter from all size, really accomplish convenient succinct.Simultaneously because the range of electric energy meter is very wide, can the large dynamic impact load of accurate-metering, effectively reduce the line loss of electrical network, make it more can adapt to the development of modern society.Another aspect, also solved and increased consumer as the user, and maximum load current can surpass the problem of the maximum current of electric energy meter, can avoid because changing the waste that larger current specification ammeter causes.Bring great convenience to the user, better meet the market demand.
The accompanying drawing explanation
Fig. 1 is electrical block diagram of the present utility model;
Fig. 2 is structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is done further and is illustrated,
As shown in Figure 1, the utility model discloses a kind of three-phase guide rail-type electric energy meter of wide-range, comprise the SoC system integrated chip, described SoC system integrated chip is connected with communication module, data memory module, key-press module, display module, pulse output module, signal acquisition module and power module respectively; Wherein, power module is given respectively SoC system integrated chip, communication module and signal acquisition module power supply.
System integrated chip (SoC) is the system level chip that integrates the functions such as function of measuring, micro controller function, real-time clock, LCD driving and temperature compensation, and this chip adopts the SoC chip 71M6543 of MAXIM company.
Signal acquisition module is comprised of voltage signal acquisition module and current signal collection module.Voltage signal samples by precision resistance after adopting high withstand voltage electric resistance partial pressure, then through the capacitance-resistance Anti-aliasing Filter Circuits, accesses the voltage signal input end of ammeter SoC chip; Current signal adopts the current transformer of wide-range high-precision to carry out the signal conversion, current signal converts mA level current signal to voltage signal by precision resistance after changing by current transformer again, the input of employing difference, then access the current signal input end of SoC chip through the capacitance-resistance Anti-aliasing Filter Circuits, beneficial to current sampling signal segmentation amplification by the SoC chip, improve the dynamic range of current sample, make the error of electric energy, electric current be required to meet the standard of 1 grade at whole range of current 0.01～100A.
Display module adopts wide temperature segment code type LCD to show, for showing parameters of electric power and energy value, coordinates key-press module to carry out the parameter setting simultaneously.
485 communication interfaces that communication module is standard, communication protocol can be MODBUS-RTU communication protocol or DL/T 645 communication protocols, communication protocol is selected by key-press module and display module.
Data memory module adopts ferroelectric memory RC04V, for parameters and the energy value of storage of electrical energy table.
Power module adopts Switching Power Supply, has improved power-efficient, has saved again the wiring board space.This power module has the power output end of two-way electrical isolation.
As shown in Figure 2, the utility model is designed according to the modularization standard of miniature circuit breaker, and its width is preferably 7 times of standard module, and standard module numerical value is 18mm, can together with other electric control appliances, be arranged on the 35mm guide rail of standard with micro-isolating switch.
Claims (6)
1. the three-phase guide rail-type electric energy meter of a wide-range, it is characterized in that: comprise the SoC system integrated chip, described SoC system integrated chip is electrically connected to communication module, data memory module, key-press module, display module, pulse output module, signal acquisition module, power module respectively, and wherein said power module is given respectively SoC system integrated chip, communication module and signal acquisition module power supply.
2. the three-phase guide rail-type electric energy meter of a kind of wide-range according to claim 1, it is characterized in that: described signal acquisition module comprises voltage signal acquisition module and current signal collection module, and described voltage signal acquisition module and current signal collection module are electrically connected to the SoC system integrated chip respectively.
3. the three-phase guide rail-type electric energy meter of a kind of wide-range according to claim 1, it is characterized in that: described SoC system integrated chip is the 71M6543 chip.
4. the three-phase guide rail-type electric energy meter of a kind of wide-range according to claim 1, is characterized in that: the wide temperature segment code type LCD of described display module employing.
5. the three-phase guide rail-type electric energy meter of a kind of wide-range according to claim 2, is characterized in that, the current measuring range of described current signal collection module is 0.01A～100A.
6. the three-phase guide rail-type electric energy meter of a kind of wide-range according to claim 1, is characterized in that, described communication module is 485 communication interfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203199592U CN203324327U (en) | 2013-06-05 | 2013-06-05 | Wide-range three-phase guide rail type electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203199592U CN203324327U (en) | 2013-06-05 | 2013-06-05 | Wide-range three-phase guide rail type electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203324327U true CN203324327U (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203199592U Expired - Lifetime CN203324327U (en) | 2013-06-05 | 2013-06-05 | Wide-range three-phase guide rail type electric energy meter |
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| Country | Link |
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| CN (1) | CN203324327U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152580A (en) * | 2016-12-06 | 2018-06-12 | 宜兴市森维电子有限公司 | A kind of combined single-phase intelligent electric energy meter |
-
2013
- 2013-06-05 CN CN2013203199592U patent/CN203324327U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152580A (en) * | 2016-12-06 | 2018-06-12 | 宜兴市森维电子有限公司 | A kind of combined single-phase intelligent electric energy meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |