CN208421080U - A kind of charging pile on-site calibrator - Google Patents
A kind of charging pile on-site calibrator Download PDFInfo
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- CN208421080U CN208421080U CN201820510349.3U CN201820510349U CN208421080U CN 208421080 U CN208421080 U CN 208421080U CN 201820510349 U CN201820510349 U CN 201820510349U CN 208421080 U CN208421080 U CN 208421080U
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Abstract
The utility model discloses a kind of charging pile on-site calibrator, the tester includes current acquisition module, voltage acquisition module, DSP processing module, Error processing module, Operation display module and power module；Wherein the current acquisition module, voltage acquisition module are connected with load, for acquiring the electric current and voltage signal of load；The output of the current acquisition module converts by I/V, is connected after A/D conversion with DSP processing module；The output of the voltage acquisition module is connected after A/D conversion, high_voltage isolation with DSP processing module；The output end of the DSP processing module is connected to Operation display module, and is modified by Error processing module to error；The direct current charging pile field tester further includes power-supply management system, dynamic lithium battery group；The power-supply management system is individually connect with each module, and for managing the electric power thus supplied of each module, the dynamic lithium battery group is connected with power-supply management system.
Description
Technical field
The utility model relates to a kind of Novel DC charging pile on-site calibrators, belong to field of electrical equipment.
Background technique
With the use of national Rapid Popularization new-energy automobile, accelerate to promote city electric car charging equipment infrastructure
The scale of planning construction, off-board charging pile expands rapidly.The performance indexes for detecting off-board charging pile is significant.
" charging equipment of electric automobile field test technical specification " is being worked out, and is provided for charging equipment of electric automobile field test
Industry standard.
Currently, extremely complex for the verification of non-car owner's charging pile, detection process, it usually needs charger is opened, to negative
Carry set, the wiring such as a variety of detection devices, there are many relevant device, and wiring is complicated；Since wiring complexity is participated in plus multiple equipment,
When to charging pile voltage detecting, voltage acquisition, being easy to produce between main system for current acquisition are coupled, to the accurate of acquisition data
Property influence it is very big.
Utility model content
In order to solve the above-mentioned technical problem, the purpose of this utility model is to provide a kind of Novel DC charging pile scene schools
Instrument is tested, voltage measurement circuit is isolated using high_voltage isolation module, is allowed to main system without electrical connection, with current-mode
Block sampling circuit is also completely isolated, is independent of each other to measurement data, plays effective protection to equipment, keeps measurement result quasi-
Really.
A kind of charging pile on-site calibrator of the utility model, the tester include current acquisition module, voltage acquisition mould
Block, DSP processing module, Error processing module, Operation display module and power module；The wherein current acquisition module, voltage
Acquisition module is connected with load, for acquiring the electric current and voltage signal of load；I/V is passed through in the output of the current acquisition module
It is connected after transformation, A/D conversion with DSP processing module；The output of the voltage acquisition module is converted by A/D, after high_voltage isolation
It is connected with DSP processing module；The output end of the DSP processing module is connected to Operation display module, and passes through Error processing mould
Block is modified error；
The direct current charging pile field tester further includes power-supply management system, dynamic lithium battery group；The power management
System is individually connect with each module, for managing the electric power thus supplied of each module, the dynamic lithium battery group and power-supply management system
It is connected.
Further, the Operation display module is the touch screen with Android operation system, flexible design upper computer software.
Further, the collator is connected with charging pile, and charger charge circuit connects current acquisition module, forms two
Primary current, the secondary current access I/V converter.
As a preference, the load unit is equipped with circulating water cooling system, the circulating water cooling system is for dissipating
Heat.
The utility model has the beneficial effects that: voltage measurement circuit is isolated using high_voltage isolation module, make
With main system without electrical connection, it is also completely isolated with current module sampling circuit, be independent of each other to measurement data, equipment risen
Effective protection has been arrived, has kept measurement result accurate.Error processing module company is also configured in check meter, can independently calculate electric energy mistake
Difference, clocking error can be convenient the calibration of this instrument, pulse mode also can be directly used and examine and determine charging pile, make to examine
Survey process is more convenient.
Use the independent dynamic lithium battery group of charge and discharge that can charge simultaneously for vehicle in detection, detection process is more square
Just.
Entire charging process using Android system according to detection project set by user and parameter, to charging pile and program-controlled negative
It is loaded into row control, solves and manually adjusts and the process of start stop switch amount, high degree of automation.
Detailed description of the invention
Fig. 1 is the utility model charging pile on-site calibrator working condition connection schematic diagram；
Charging pile on-site calibrator structural schematic diagram in Fig. 2 embodiment.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
A kind of charging pile on-site calibrator provided by the utility model, the tester include current acquisition module, voltage
Acquisition module, DSP processing module, Error processing module, Operation display module and power module；The wherein current acquisition mould
Block, voltage acquisition module are connected with load, for acquiring the electric current and voltage signal of load；The output of the current acquisition module
It is connected after I/V transformation, A/D conversion with DSP processing module；The output of the voltage acquisition module is by A/D conversion, high pressure
It is connected after isolation with DSP processing module；The output end of the DSP processing module is connected to Operation display module, and passes through error
Processing module is modified error；
The direct current charging pile field tester further includes power-supply management system, dynamic lithium battery group；The power management
System is individually connect with each module, for managing the electric power thus supplied of each module, the dynamic lithium battery group and power-supply management system
It is connected.
As shown in Figure 1, firstly, charging pile on-site calibrator and charger and program-controlled load are connected.Further according to user
The detection project and measurement point of setting send order and control program-controlled load；And by way of sending charge requirement message, control
The charging voltage and charging current of charging pile.Electrical measurement data are exchanged, are compared, DC charging output performance is completed and examines.
As shown in Fig. 2, the utility model is mainly by current acquisition module, voltage acquisition module, DSP processing module, error
Processing module, Operation display module and power module composition.The utility model current acquisition module includes current sensor, I/
V converter, A/D conversion module, A/D conversion module connect DSP processing module；The voltage acquisition module includes A/D modulus of conversion
Block, high_voltage isolation module, high_voltage isolation module connect DSP processing module；The utility model power module includes power management
System, dynamic lithium battery group and charging circuit.
The utility model power module uses the independent dynamic lithium battery group of charge and discharge, can be to discharge in charging.Fill
The technical issues of circuit and operating circuit can work independently, and be independent of each other, and cannot charge when overcoming instrument work.And it designs
Independent power-supply management system is responsible for power supply, a key switch machine and the battery pack charging instruction of each module of instrument.This is practical
New-type charge stake field test instrument can be examined simultaneously for automobile batteries charging and charging pile with automobile batteries connection procedure
It surveys, two processes are mutually indepedent, are independent of each other.
The utility model current acquisition module maximum can input 300A electric current.Charging pile charge circuit, i.e. primary current
Across current sensor, secondary current is exported, secondary current is directly accessed I/V converter, is voltage by electric current pick-up, by voltage
Signal is improved, then is sampled.
Voltage acquisition module maximum can input 1200V voltage.On hardware, voltage measurement is returned using high_voltage isolation module
Road is isolated, and is allowed to main system without electrical connection, also completely isolated with current module sampling circuit, mutual to measurement data
It does not influence, effective protection is played to equipment.
DSP data processing module can periodically read the sampled value of A/D sampling A/D chip, available to have by data processing
Voltage, the electric current of effect, performance number, and export the electrical energy pulse that can be used for verifying.
Error processing module attended operation display module, can independently calculate electric energy error, clocking error can be convenient this instrument
The calibration of device also can be directly used pulse mode and examine and determine charging pile.Operation display module can pass through communication mode
The error amount of reading error processing module.
Operation display module be the touch screen with Android operation system, can flexible design upper computer software, in real time read
The electrical measurement data of DSP data processing module, the information about power of power-supply management system.Operation display module use CAN-BUS with
Charging pile and program-controlled load are communicated, and the BMS system of electric car is simulated, and send message, interaction number by CAN protocol
According to.Android system controls charging pile and program-controlled load according to detection project set by user and parameter, and carries out data
It compares, to complete performance detection.
Circuit involved in I/V converter, A/D conversion module, high_voltage isolation module involved by the utility model
It is conversion common in the art, isolation circuit.
Above-mentioned specific embodiment is the preferred embodiment of the utility model, can not be defined to the utility model,
Other any changes made without departing from the technical solution of the utility model or other equivalent substitute modes, are included in
Within the protection scope of the utility model.
Claims (4)
1. a kind of charging pile on-site calibrator, it is characterised in that: the tester includes current acquisition module, voltage acquisition mould
Block, DSP processing module, Error processing module, Operation display module and power module；The wherein current acquisition module, voltage
Acquisition module is connected with load, for acquiring the electric current and voltage signal of load；I/V is passed through in the output of the current acquisition module
It is connected after transformation, A/D conversion with DSP processing module；The output of the voltage acquisition module is converted by A/D, after high_voltage isolation
It is connected with DSP processing module；The output end of the DSP processing module is connected to Operation display module, and passes through Error processing mould
Block is modified error；
The charging pile on-site calibrator further includes power-supply management system, dynamic lithium battery group；The power-supply management system and each
Module individually connects, and for managing the electric power thus supplied of each module, the dynamic lithium battery group is connected with power-supply management system.
2. a kind of charging pile on-site calibrator according to claim 1, it is characterised in that: the Operation display module is band
The touch screen of Android operation system, for designing upper computer software.
3. a kind of charging pile on-site calibrator according to claim 1, it is characterised in that: the tester and charging pile phase
Even, charging pile charge circuit connects current acquisition module, forms secondary current, and the secondary current accesses I/V converter.
4. a kind of charging pile on-site calibrator according to any one of claims 1 to 3, it is characterised in that: load unit is set
There is circulating water cooling system, the circulating water cooling system is for radiating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820510349.3U CN208421080U (en) | 2018-04-11 | 2018-04-11 | A kind of charging pile on-site calibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820510349.3U CN208421080U (en) | 2018-04-11 | 2018-04-11 | A kind of charging pile on-site calibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208421080U true CN208421080U (en) | 2019-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820510349.3U Active CN208421080U (en) | 2018-04-11 | 2018-04-11 | A kind of charging pile on-site calibrator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031698A (en) * | 2019-03-19 | 2019-07-19 | 合肥学院 | A kind of direct current on-line calibration system and calibrating installation |
-
2018
- 2018-04-11 CN CN201820510349.3U patent/CN208421080U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031698A (en) * | 2019-03-19 | 2019-07-19 | 合肥学院 | A kind of direct current on-line calibration system and calibrating installation |
| CN110031698B (en) * | 2019-03-19 | 2021-04-23 | 合肥学院 | Direct current online calibration system and calibration device |
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