CN112014633A - Plug-in type digital double-core metering module - Google Patents
Plug-in type digital double-core metering module Download PDFInfo
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- CN112014633A CN112014633A CN201910456358.8A CN201910456358A CN112014633A CN 112014633 A CN112014633 A CN 112014633A CN 201910456358 A CN201910456358 A CN 201910456358A CN 112014633 A CN112014633 A CN 112014633A
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- 239000002184 metal Substances 0.000 claims abstract description 20
- 230000005611 electricity Effects 0.000 claims abstract description 14
- 238000009825 accumulation Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 15
- 239000013307 optical fiber Substances 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 8
- 238000005259 measurement Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/061—Details of electronic electricity meters
- G01R22/063—Details of electronic electricity meters related to remote communication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/061—Details of electronic electricity meters
- G01R22/065—Details of electronic electricity meters related to mechanical aspects
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a plug-in type digital double-core metering module, which comprises a panel, a base, a management board, an electric power metering board and a cover plate, wherein the base is provided with a plurality of pins; the panel, the base and the cover plate are assembled together to form a closed metal shell; the management board and the electric metering board are arranged on the base and are positioned inside the metal shell; the management board is responsible for the management of the whole metering module, and the electric metering board is used for completing the metering accumulation function; the electricity degree metering board collects metering data and outputs the metering data to the management board. The metering module has the advantages of simple structure, convenience in installation and debugging and strong anti-interference capability.
Description
Technical Field
The invention relates to the technical field of digital substation measurement, in particular to a plug-in type digital double-core measurement module.
Background
At present, the digital measuring instruments produced in China mainly have two types: multifunctional measurement and control and digital electric energy meter. The multifunctional measurement and control is a self-defined metering function of the measurement and control device, and mainly uses non-charging functions such as line loss examination, reference and the like, so that the function is relatively simple, and the function of rate time interval is generally not provided. Meanwhile, the multifunctional measurement and control device is limited by the measurement and control specialty, cannot be lead-sealed and cannot meet the measurement professional requirements. Therefore, the metering detection of the multifunctional measuring and controlling device only has a precision detection report and a type experiment report issued by the Chinese academy of science and technology, and has no special verification report for a metering device. The manufacturers of the digital electric energy meters are professional electric energy meter manufacturers, the appearance results and functions of the digital electric energy meters are similar to those of the traditional meters, the requirements of measurement specialties can be better met, but the appearance dimensions of the digital electric energy meters do not meet the installation requirements of GB/T19520-482.6 mm (19 in) series mechanical structure dimensions of electronic equipment mechanical structures, and meanwhile, the digital electric energy meters occupy extra installation space in a secondary screen cabinet and cannot be integrated with other protection devices of a transformer substation.
Under the premise of fully investigating, deeply knowing and analyzing the requirement development trend of a digital metering system under the background of a smart grid, the invention combines the traditional electric energy meter and the technical current situation of a plurality of equipment manufacturers in the industry, and adopts modular, standardized and distributed design to complete a digital double-core metering module.
Disclosure of Invention
The invention provides a plug-in type digital double-core metering module for overcoming the defects in the prior art, which has the advantages of simple structure, convenience in installation and debugging and strong anti-interference capability.
In order to solve the technical problem, the invention provides a plug-in type digital double-core metering module which is characterized by comprising a panel, a base, a management board, an electric power metering board and a cover board;
the panel, the base and the cover plate are assembled together to form a closed metal shell; the management board and the electric metering board are arranged on the base and are positioned inside the metal shell;
the management board is responsible for the management of the whole metering module, and the electric metering board is used for completing the metering accumulation function; the electricity degree metering board collects metering data and outputs the metering data to the management board.
Further, the apron includes three face, and last face, right side face and the lower face as metal casing after the equipment, the base include two faces, and the left side face and the back face as metal casing after the equipment, the panel includes a face, and the preceding face as metal casing after the equipment.
Furthermore, the inner side of the left plate surface of the base is provided with a supporting clamping column, the inner side of the rear plate surface is provided with a positioning pin, and the cover plate is fixed with the base through the supporting clamping column and the positioning pin.
Furthermore, the panel is fixed on the base through 4 mounting screws.
Furthermore, the management board and the electric metering board are mounted on the base in a stacked manner through the nut columns.
Further, the surface of the panel comprises: 4 LED indicator lamps 12, which are respectively active and reactive for electric energy pulse output; the operation and the alarm are used for displaying the current state of the module; the 4 optical fiber interfaces 13 are used for receiving A, B, C three-phase numbers and forwarding the three-phase numbers to a standard table for comparison; 4 RJ45 interfaces 14 are used for communicating with a centralized meter reading system to realize IEC61850 meter reading; one power terminal 15 for supplying power to the module; one serial port terminal 16 is used for synchronizing the time of a system synchronous clock and realizing DLT485 meter reading;
the LED indicator light, the optical fiber interface, the RJ45 interface, the power terminal and the serial port terminal are all connected to the management board.
Further, the surface of the panel is covered with a lead cover.
Further, the lead sealing cover is installed on the surface of the panel through lead sealing screws.
Compared with the prior art, the invention has the following beneficial effects: the digital double-core metering module provided by the invention integrates and installs the watt-hour metering board and the management board, thereby saving the installation position. Meanwhile, the electric and functional independence of the management board can be realized, lead sealing treatment can be performed, and professional independence of the measuring instrument is guaranteed. The management function and the power accumulation function are distributed on different chips. When the demand changes, such as increasing the time period of the rate, the management core program can be upgraded independently without influencing the function of accumulating the electricity. The system has the advantages of modular, standardized and distributed design, good universality and expansibility, simplification of maintenance and upgrading work in the future and improvement of the life cycle of the system of the metering module.
Drawings
FIG. 1 is a schematic view of the overall structure of a metering module according to the present invention;
FIG. 2 is an exploded view of a metering module according to the present invention;
FIG. 3 is a schematic front view of the metering module of the present invention with the lead enclosure removed;
FIG. 4 is a schematic view of the installation and use of the metering module of the present invention.
Reference numerals: 1. a lead enclosure; 2. a panel; 3. a base; 4. a management board; 5. an electricity metering plate; 6. a cover plate; 7. lead sealing screws; 8. mounting screws; 9. supporting the clamping column; 10. positioning pins; 11. a nut post; 12. an LED indicator light; 13. an optical fiber interface; 14. an RJ45 interface; 15. a power supply terminal; 16. and a serial port terminal.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The invention provides a plug-in type digital double-core metering module, as shown in figure 1, comprising: panel 2, base 3, management board 4, electricity metering board 5 and cover 6. Wherein the panel 2, the base 3 and the cover plate 6 are assembled together to form a closed metal shell; the management board 4 and the electricity metering board 5 are installed on the base through screws and are located inside the metal shell, and the metal shell can protect devices on the two board cards from electromagnetic interference.
As shown in fig. 2, the cover plate 6 includes three plate surfaces serving as an upper plate surface, a right plate surface, and a lower plate surface of the metal case after assembly, the base 3 includes two plate surfaces serving as a left plate surface and a rear plate surface of the metal case after assembly, and the panel 2 includes one plate surface serving as a front plate surface of the metal case after assembly. The inner side of the left plate surface of the base is provided with a supporting clamping column, the inner side of the rear plate surface is provided with a positioning pin, the cover plate 6 is fixed with the base 3 through the supporting clamping column 9 and the positioning pin 10, and the panel 2 is fixed on the base 3 through 4 mounting screws 8. Only the front surface of the panel 2 of the whole metal shell is provided with 4 mounting screws 8, and the rest surfaces can not be detached.
As shown in fig. 3, two boards, i.e., a management board 4 and an electricity meter board 5, are disposed in the meter module, and are stacked on the base 3 via nut posts 11, and the output end of the electricity meter board is connected to the management board. The management board 4 is responsible for managing the whole metering module, can be realized by adopting a single chip microcomputer or a microprocessor in the prior art, and is mainly responsible for collecting metering data and managing the whole metering module. The electric metering board 5 is used for completing the metering accumulation function, can be realized by adopting a metering chip in the prior art, realizes metering and outputs metering data to the management board. The dual-chip design ensures that the management function and the electric power accumulation function are distributed on different chips. When the demand changes, such as increasing the time period of the rate, the management core program can be upgraded independently without influencing the function of accumulating the electricity.
As shown in fig. 3, the front layout of the metrology module comprises: 4 LED indicator lamps 12, which are respectively active and reactive for electric energy pulse output; the operation and the alarm are used for displaying the current state of the module; the 4 optical fiber interfaces 13 are used for receiving A, B, C three-phase numbers and forwarding the three-phase numbers to a standard table for comparison; 4 RJ45 interfaces 14 are used for communicating with a centralized meter reading system to realize IEC61850 meter reading; one power terminal 15 for supplying power to the module; and one serial port terminal 16 is used for synchronizing the time of a system synchronous clock and realizing DLT485 meter reading. The LED indicator lamp, the optical fiber interface, the RJ45 interface, the power terminal and the serial port terminal are connected to the management board; the power supply terminal is used for providing power for the management board, and the LED indicator lamp is controlled by the management board to output or light.
The surface (outer surface) of the panel 2 is covered with a lead sealing cover 1, and the lead sealing cover can protect the wiring on the surface of the panel from being damaged. The lead sealing cover 1 is arranged on the surface of the panel 2 through a lead sealing screw 7, the lead sealing cover 1 can shield the mounting screw 8 of the panel 2, and the lead sealing on the surface of the lead sealing screw 7 needs to be destroyed before the lead sealing cover 1 is disassembled, so that the mounting screw 8 of a wiring or a metal shell can be disassembled; the seriousness and traceability of the metering module are ensured.
As shown in FIG. 4, the screws carried by the metering modules can be assembled as 4U-height inserts in a 4U-height 19' standard device (IEC 60297, GB/T19520) occupying a 75HP horizontal grid spacing (76.2 mm).
As shown in fig. 2, the management board 4 completes functions of external communication, electric quantity display, fixed value management, etc., the electricity metering board 5 completes an electricity metering accumulation function, data exchange is performed between the management board 4 and the electricity metering board 5 through a data serial bus, and continuous execution of the electricity metering accumulation function is not affected when a management program is upgraded.
The digital double-core metering module provided by the invention integrates and installs the watt-hour metering board and the management board, thereby saving the installation position. Meanwhile, the electric and functional independence of the management board can be realized, lead sealing treatment can be performed, and professional independence of the measuring instrument is guaranteed. The system has the advantages of modular, standardized and distributed design, good universality and expansibility, simplification of maintenance and upgrading work in the future and improvement of the life cycle of the system of the metering module.
The metering module has the advantages of simple structure, convenience in installation and debugging and strong anti-interference capability.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A plug-in type digital double-core metering module is characterized by comprising a panel, a base, a management board, an electric power metering board and a cover board;
the panel, the base and the cover plate are assembled together to form a closed metal shell; the management board and the electric metering board are arranged on the base and are positioned inside the metal shell;
the management board is responsible for the management of the whole metering module, and the electric metering board is used for completing the metering accumulation function; the electricity degree metering board collects metering data and outputs the metering data to the management board.
2. The digital dual-core meter module of plug-in type as claimed in claim 1, wherein the cover plate comprises three faces assembled as the upper, right and lower faces of the metal housing, the base comprises two faces assembled as the left and rear faces of the metal housing, and the face plate comprises one face assembled as the front face of the metal housing.
3. The digital dual-core metering module of a plug-in type as claimed in claim 1, wherein the inner side of the left plate surface of the base is provided with a support clip column, the inner side of the rear plate surface is provided with a positioning pin, and the cover plate is fixed with the base through the support clip column and the positioning pin.
4. A card-type digital dual-core metering module according to claim 1, wherein the face plate is secured to the base by 4 mounting screws.
5. The digital two-core metering module of claim 1, wherein the management board and the electrical metering board are mounted on the base by a stack of nut studs.
6. A card-type digital dual-core metrology module as in claim 1 wherein the face of the panel comprises: 4 LED indicator lamps 12, which are respectively active and reactive for electric energy pulse output; the operation and the alarm are used for displaying the current state of the module; the 4 optical fiber interfaces 13 are used for receiving A, B, C three-phase numbers and forwarding the three-phase numbers to a standard table for comparison; 4 RJ45 interfaces 14 are used for communicating with a centralized meter reading system to realize IEC61850 meter reading; one power terminal 15 for supplying power to the module; one serial port terminal 16 is used for synchronizing the time of a system synchronous clock and realizing DLT485 meter reading;
the LED indicator light, the optical fiber interface, the RJ45 interface, the power terminal and the serial port terminal are all connected to the management board.
7. A card-type digital dual-core metering module according to claim 1, wherein the face plate is covered with a lead enclosure.
8. The digital two-core meter module of the card type of claim 7, wherein the lead sealing cover is mounted on the face plate by lead sealing screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910456358.8A CN112014633A (en) | 2019-05-29 | 2019-05-29 | Plug-in type digital double-core metering module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910456358.8A CN112014633A (en) | 2019-05-29 | 2019-05-29 | Plug-in type digital double-core metering module |
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| Publication Number | Publication Date |
|---|---|
| CN112014633A true CN112014633A (en) | 2020-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910456358.8A Pending CN112014633A (en) | 2019-05-29 | 2019-05-29 | Plug-in type digital double-core metering module |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201402280Y (en) * | 2009-04-28 | 2010-02-10 | 华南理工大学 | Triphase prepayment electric energy meter system based on GPRS |
| CN201886042U (en) * | 2010-09-09 | 2011-06-29 | 深圳市森晖电子有限公司 | Smart electricity meter for state grid single-phase carrier long-distance prepayment |
| CN103323666A (en) * | 2013-06-24 | 2013-09-25 | 国电南京自动化股份有限公司 | Integrated type electric power measurement module |
| CN205539186U (en) * | 2016-03-20 | 2016-08-31 | 国网山东省电力公司巨野县供电公司 | Based on smart power grids management electric energy meter |
| CN106908639A (en) * | 2017-04-28 | 2017-06-30 | 国网江苏省电力公司电力科学研究院 | A kind of intelligent digitalized metering cabinet |
| CN207882318U (en) * | 2017-12-05 | 2018-09-18 | 中国电力科学研究院有限公司 | A kind of modularization metering units of optical fiber and digital signal input |
| CN108761160A (en) * | 2018-08-20 | 2018-11-06 | 贵州电网有限责任公司 | A kind of electric energy meter legality measurement and non-legal system functional hardware separated structure |
-
2019
- 2019-05-29 CN CN201910456358.8A patent/CN112014633A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201402280Y (en) * | 2009-04-28 | 2010-02-10 | 华南理工大学 | Triphase prepayment electric energy meter system based on GPRS |
| CN201886042U (en) * | 2010-09-09 | 2011-06-29 | 深圳市森晖电子有限公司 | Smart electricity meter for state grid single-phase carrier long-distance prepayment |
| CN103323666A (en) * | 2013-06-24 | 2013-09-25 | 国电南京自动化股份有限公司 | Integrated type electric power measurement module |
| CN205539186U (en) * | 2016-03-20 | 2016-08-31 | 国网山东省电力公司巨野县供电公司 | Based on smart power grids management electric energy meter |
| CN106908639A (en) * | 2017-04-28 | 2017-06-30 | 国网江苏省电力公司电力科学研究院 | A kind of intelligent digitalized metering cabinet |
| CN207882318U (en) * | 2017-12-05 | 2018-09-18 | 中国电力科学研究院有限公司 | A kind of modularization metering units of optical fiber and digital signal input |
| CN108761160A (en) * | 2018-08-20 | 2018-11-06 | 贵州电网有限责任公司 | A kind of electric energy meter legality measurement and non-legal system functional hardware separated structure |
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Application publication date: 20201201 |
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