CN213275796U - Direct current metering device for direct current charging facility - Google Patents
Direct current metering device for direct current charging facility Download PDFInfo
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- CN213275796U CN213275796U CN202021883135.4U CN202021883135U CN213275796U CN 213275796 U CN213275796 U CN 213275796U CN 202021883135 U CN202021883135 U CN 202021883135U CN 213275796 U CN213275796 U CN 213275796U
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Abstract
The utility model provides a direct current metering device for direct current facility of charging, including the MCU module and with data storage module that the MCU module is connected, metering module and communication module for gather the facility operating data that charges in real time, metering module includes that the model is CS 5480's chip and collection circuit, the collection circuit includes voltage acquisition circuit and electric current acquisition circuit, communication module includes that the 4G communication module who provides the data access function to internet platform and thing networking platform inserts, accomplishes the 485 asynchronous communication module of measurement calibration, data communication and function extension with the local data end that provides equipment. The utility model discloses an integrated MCU module, data storage module, metering module, 4G communication module and 485 asynchronous communication module realize the real-time data acquisition and the measurement function to the direct current facility of charging, simultaneously through the network data access, can real-time on-line monitoring device data, reduced the input of manpower, material resources in the measurement process.
Description
Technical Field
The utility model relates to a new forms of energy technical field of metering module equipment is a metering module device for direct current facility of charging.
Background
With the continuous progress of the technology in the technical field of new energy, new energy automobiles are more and more popular among consumers, and the holding capacity of the new energy automobiles is steadily improved. The demand of direct current charging facilities used in cooperation with new energy automobiles is increasing day by day, the charging facilities are used as energy input equipment of the new energy automobiles, power input systems of the charging facilities are mostly power transmission line systems of national power grids, and after long-time high-power use, a series of problems such as aging and service life reduction of electrical elements occur. Especially in the aspect of electric energy metering, long-term use can cause the deviation of whole metering data, influences the normal use of charging facility.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a metering module device for direct current facility of charging, this metering module device realizes the intelligent on-line measuring of battery charging outfit.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a direct current metering device for direct current facility of charging, including the MCU module and with data storage module that the MCU module is connected, be used for gathering metering module and the communication module of the facility operating data that charges in real time, metering module includes that the model is CS 5480's chip and collection circuit, it includes voltage acquisition circuit and electric current acquisition circuit to gather the circuit, communication module is including providing the 4G communication module to the data access function of internet platform and thing networking platform and the 485 asynchronous communication module who provides the local data end access, accomplish measurement calibration, data communication and function extension of equipment.
Furthermore, the voltage acquisition circuit comprises resistors R1, R2, R3 and a capacitor C1, one end of the resistor R1 is connected to the VL pin of the CS5840 chip, the other end of the resistor R1 is connected to one end of a resistor R2, one end of the resistor R3 is connected to the GND pin of the CS5840 chip and grounded, the other end of the resistor R3 is connected to one end of a capacitor C1, and the other end of the capacitor C1 is connected to the middle of the resistors R1 and R2; the current acquisition circuit comprises resistors R4, R5, R6, capacitors C2 and C3, one end of a capacitor C1 is connected with one ends of an I + pin and a resistor R4 of the CS5840 chip, the other end of the capacitor C1 is connected with one end of a capacitor C3, the other end of the capacitor C3 is connected with a GND pin of the CS5840 chip and one end of a resistor R3, one end of the resistor R5 is connected with the other end of the resistor R3, the other end of the resistor R5 is connected with the middle positions of the capacitors C2 and the resistor C4, and the middle positions of the capacitors C1 and C2 are grounded.
Further, the MCU module comprises a chip with the model number of STM32103VE and peripheral circuits thereof.
Further, the data storage module comprises a chip with the model number of EEPROM and peripheral circuits thereof.
Further, the 4G communication module includes a chip of model N720 and its peripheral circuits.
Further, the 485 asynchronous communication module comprises a 485 chip and a peripheral circuit thereof. Further, the metering module comprises a chip with the model number of CS5480 and a collecting line, and the collecting line comprises a voltage collecting line and a current collecting line.
Preferably, the 4G communication module is connected with the big data platform and uploads the related parameter information to the big data platform.
The utility model discloses an integrated MCU module, data storage module, metering module, 4G communication module and 485 asynchronous communication module realize the real-time data acquisition and the measurement function to the direct current facility of charging, simultaneously through the network data access, can real-time on-line monitoring device data, reduced the input of manpower, material resources in the measurement process.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the circuit connection of the present invention;
fig. 3 is a schematic diagram of the metering module and the collecting circuit of the present invention.
Detailed Description
A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
The direct current metering device for the direct current charging facility, as shown in fig. 1, includes the MCU module and with data storage module, metering module and the communication module that is used for gathering charging facility operating data in real time that the MCU module is connected, metering module and collection circuit that the metering module includes that the model is CS 5480's chip and collection circuit, the collection circuit includes voltage acquisition circuit and current acquisition circuit, communication module is including providing the 4G communication module to the data access function of internet platform and thing networking platform and providing the local data end access of equipment, accomplishing the 485 asynchronous communication module of measurement calibration, data communication and function extension.
As shown in fig. 2, the MCU module in the preferred embodiment includes a chip of model STM32103VE and its peripheral circuits, and the module is a central data processing unit of the metering module device and mainly provides functions of cooperative processing of each functional module unit, data transfer processing, and the like; the data storage module comprises a chip with the model of EEPROM and a peripheral circuit thereof, and the module is a data storage unit of the metering module device and mainly provides data storage and configuration storage functions of device equipment; the 4G communication module comprises a chip with the model number of N720 and a peripheral circuit thereof, and is a network communication module of the metering module device and provides a data access function for an internet platform and an internet of things platform; the 485 asynchronous communication module comprises a 485 chip and a peripheral circuit thereof, and is an asynchronous serial communication module of the metering module device, and the module provides a local data terminal access function of equipment to finish functions of metering calibration, data communication, function expansion and the like; the metering module comprises a chip with the model of CS5480 and a collecting line, the collecting line comprises a voltage collecting line and a current collecting line, the voltage collecting line takes the voltage difference of DC + and DC-two lines of a DC bus of a DC charging facility as the standard value of voltage, the current collecting line takes a sensor to be connected into the bus by an external Hall current sensor, the obtained voltage-to-current value is taken as the current standard value, the high-precision collecting function of real-time data such as voltage, current and power is provided, and meanwhile, the function of accumulating and metering electric energy data is also provided.
As shown in fig. 3, the voltage acquisition circuit includes resistors R1, R2, R3 and a capacitor C1, one end of the resistor R1 is connected to the VL pin of the CS5840 chip, the other end of the resistor R1 is connected to one end of a resistor R2, one end of the resistor R3 is connected to the GND pin of the CS5840 chip and grounded, the other end of the resistor R3 is connected to one end of a capacitor C1, and the other end of the capacitor C1 is connected to the middle of the resistors R1 and R2; the current acquisition circuit comprises resistors R4, R5, R6, capacitors C2 and C3, one end of a capacitor C1 is connected with one ends of an I + pin and a resistor R4 of the CS5840 chip, the other end of the capacitor C1 is connected with one end of a capacitor C3, the other end of the capacitor C3 is connected with a GND pin of the CS5840 chip and one end of a resistor R3, one end of the resistor R5 is connected with the other end of the resistor R3, the other end of the resistor R5 is connected with the middle positions of the capacitors C2 and the resistor C4, and the middle positions of the capacitors C1 and C2 are grounded.
In specific use, the direct current metering device is suitable for direct current charging facilities, when equipment leaves a factory, a metering module is subjected to data calibration through a 485 asynchronous communication module, the metering precision reaches 0.5%, relevant configuration parameter attributes are stored in a data storage module, the 4G communication module completes dialing action through an SIM card to connect a corresponding big data platform, access work with the platform is completed, and meanwhile required relevant parameter information can be uploaded on line.
The above-mentioned embodiments are only to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (7)
1. The utility model provides a direct current metering device for direct current facility of charging, its characterized in that, including the MCU module and with data storage module that the MCU module is connected, be used for gathering metering module and the communication module of the facility operating data that charges in real time, metering module includes that the model is CS 5480's chip and collection circuit, it includes voltage acquisition circuit and electric current collection circuit to gather the circuit, communication module is including providing the 4G communication module to the data access function of internet platform and thing networking platform and the 485 asynchronous communication module who provides the local data end access of equipment, accomplish measurement calibration, data communication and function extension.
2. The direct current metering device for the direct current charging facility according to claim 1, wherein the voltage acquisition circuit comprises resistors R1, R2 and R3 and a capacitor C1, one end of the resistor R1 is connected with the VL pin of the CS5840 chip, the other end of the resistor R1 is connected with one end of a resistor R2, one end of the resistor R3 is connected with the GND pin of the CS5840 chip and is grounded, the other end of the resistor R3 is connected with one end of a capacitor C1, and the other end of the capacitor C1 is connected with the middle position of the resistors R1 and R2;
the current acquisition circuit comprises resistors R4, R5, R6, capacitors C2 and C3, one end of a capacitor C1 is connected with one ends of an I + pin and a resistor R4 of the CS5840 chip, the other end of the capacitor C1 is connected with one end of a capacitor C3, the other end of the capacitor C3 is connected with a GND pin of the CS5840 chip and one end of a resistor R3, one end of the resistor R5 is connected with the other end of the resistor R3, the other end of the resistor R5 is connected with the middle positions of the capacitors C2 and the resistor C4, and the middle positions of the capacitors C1 and C2 are grounded.
3. The direct current metering device for the direct current charging facility according to claim 1, wherein the MCU module comprises a chip of model number STM32103VE and peripheral circuits thereof.
4. The dc metering device for a dc charging facility of claim 1, wherein the data storage module comprises a chip of type EEPROM and its peripheral circuits.
5. The dc metering device for a dc charging facility according to claim 1, wherein the 4G communication module comprises a model N720 chip and its peripheral circuits.
6. The dc metering device of claim 1, wherein the 485 asynchronous communication module comprises a 485 chip and its peripheral circuits.
7. The direct current metering device for the direct current charging facility according to claim 1, wherein the 4G communication module is connected with a big data platform and uploads related parameter information to the big data platform.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021883135.4U CN213275796U (en) | 2020-08-31 | 2020-08-31 | Direct current metering device for direct current charging facility |
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| CN202021883135.4U CN213275796U (en) | 2020-08-31 | 2020-08-31 | Direct current metering device for direct current charging facility |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113791274A (en) * | 2021-09-07 | 2021-12-14 | 科大智能（合肥）科技有限公司 | Electric power direct current measurement system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113791274A (en) * | 2021-09-07 | 2021-12-14 | 科大智能（合肥）科技有限公司 | Electric power direct current measurement system |
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