CN206818793U - A kind of new-energy automobile charging gun detecting system - Google Patents
A kind of new-energy automobile charging gun detecting system Download PDFInfo
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- CN206818793U CN206818793U CN201720506569.4U CN201720506569U CN206818793U CN 206818793 U CN206818793 U CN 206818793U CN 201720506569 U CN201720506569 U CN 201720506569U CN 206818793 U CN206818793 U CN 206818793U
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Abstract
This provides a kind of new-energy automobile charging gun detecting system with new, including be sequentially connected electrically SOC control units, data acquisition module, detection circuit, I/O unit, the I/O unit connects charging gun by switching tooling.The charging gun detecting system realizes the detection to charging gun wire harness insulating properties in a high voltage state, can avoid the occurrence of phenomena such as burning car or personnel's electric shock, it is ensured that the safe handling of vehicle and human life's property safety.
Description
Technical field
The utility model belongs to testing techniques of equipment field, and in particular to a kind of new-energy automobile charging gun detecting system.
Background technology
In recent years, with the rapid development of auto industry, energy resource consumption and environmental pollution two large problems are increasingly apparent, the world
Gradual attention of the various countries to environment and energy problem so that new-energy automobile（Pure electric automobile and hybrid vehicle）As vapour
The development trend of turner industry.And charging gun, as the important component in new-energy automobile, its security and reliability are less
Appearance is despised, and the safety and use to new-energy automobile play vital effect.
Therefore, charging gun is before putting into production use, and to pass through and constantly test, and could be thrown after properties are all qualified
Enter to use.Charging gun wire harness main bearer high current, high-tension power output in a high voltage state, if improper use can go out
Phenomena such as now burning car or personnel's electric shock, safe handling and human life's property to vehicle cause to have a strong impact on.Therefore to charging
The detection of the insulating properties of rifle in a high voltage state is most important.
Utility model content
The purpose of this utility model is to realize the detection of automobile charging gun insulating properties, it is ensured that the safety during use.
Therefore, the utility model provides a kind of new-energy automobile charging gun detecting system, including the SOC being sequentially connected electrically
Control unit, data acquisition module, detection circuit, the detection circuit connects charging gun by switching tooling, to charging gun line
Shu Jinhang insulating resistance values are tested, and the detection circuit includes comparison circuit, and insulaion resistance mark is preserved in the comparison circuit
Quasi- value, sent out by detection circuit by obtained insulating resistance value result is tested compared with insulaion resistance standard value, and by comparative result
Give data acquisition module；Described SOC control units connect an I/O unit.
The data acquisition module includes current sensor and signal conditioning circuit, detects the electric rifle wire harness of electric circuit inspection
Loop current signals carry out I/V in signal conditioning circuit by current sensor entering signal modulate circuit to current signal
Conversion makes the voltage signal for meeting SOC control unit A/D input ranges.
Also include circuit overcurrent protection, current protecting circuit connection signal conditioning circuit and SOC control units, the mistake
The voltage signal that current protecting circuit exports according to signal conditioning circuit, current limit signal is sent to SOC control units.
The detection circuit is made up of high-speed comparator and electric bridge zeroing circuit, and the electric bridge zeroing circuit is filled for test
Electric rifle wire harness insulating resistance value, data are to data acquisition module after the high-speed comparator is used for data analysis and transimiison analysis.
The current sensor is Hall current sensor or SMI05mA current sensors.
The beneficial effects of the utility model are：
This new-energy automobile charging gun detecting system provided by the utility model, realize in a high voltage state to charging
The detection of rifle wire harness insulating properties, phenomena such as burning car or personnel's electric shock can be avoided the occurrence of, it is ensured that the safe handling of vehicle and personnel
The security of the lives and property.
It is described in further details below in conjunction with accompanying drawing.
Brief description of the drawings
Fig. 1 is theory diagram of the present utility model；
Fig. 2 is electric bridge zeroing circuit figure.
Embodiment
Embodiment 1：
Present embodiments provide including be sequentially connected electrically SOC control units, data acquisition module, detection circuit, it is described
Detect circuit and charging gun is connected by switching tooling, insulating resistance value test, the detection circuit bag are carried out to charging gun wire harness
Comparison circuit is included, insulaion resistance standard value is preserved in the comparison circuit, obtained insulaion resistance will be tested by detection circuit
Value result is sent to data acquisition module compared with insulaion resistance standard value, and by comparative result；Described SOC control units connect
Connect an I/O unit.
After charging gun is connected by the input of switching tooling and I/O unit, inputted by I/O unit
Instruction, control unit send a signal to data acquisition module after receiving instruction, and data acquisition module will be sent to after signal transacting
Circuit is detected, insulating resistance value test, the detection circuit bag are carried out to charging gun wire harness after detecting circuit reception processing signal
Comparison circuit is included, insulaion resistance standard value is preserved in the comparison circuit, obtained insulaion resistance will be tested by detection circuit
Value result compared with insulaion resistance standard value, data collecting module collected detection circuit relatively after signal, sent after processing
SOC control units are given, then output survey after I/O unit preserves is transmitted to after signal is carried out into A/D conversions by SOC control units
Test result.
Operation principle：As shown in figure 1, after by switching tooling, tested charging gun wire harness is accessed, by detecting circuit pair
Charging gun wire harness insulating resistance value is tested, and and setting standard（100M--5GΩ）Judge whether after being compared analysis
To data acquisition module, data acquisition module is sent to SOC control units and signal is carried out into A/D data after qualified and transimiison analysis
I/O unit is transmitted to after conversion, the document of setting is saved the data in by the memory in I/O unit
（Excel or pdf）In document；Data acquisition module carries out data acquisition to test result, the data that are gathered by electrically every
From, amplification, filtering after feed back to SOC control units.Wherein, the data that output unit is preserved can be complete by equipment such as printers
Into label printing function.
Embodiment 2：
A kind of new-energy automobile charging gun detecting system, the data are present embodiments provided on the basis of embodiment 1
Acquisition module includes current sensor and signal conditioning circuit, and the electric rifle wire harness loop current for detecting circuit passes through current sensor
Entering signal modulate circuit, current signal progress I/V conversions are made to meet that SOC control units A/D is defeated in signal conditioning circuit
Enter the voltage signal of scope.Also include circuit overcurrent protection, the circuit overcurrent protection exports according to signal conditioning circuit
Voltage signal, send current limit signal to SOC control units.Alarm module can also be set, from SOC control units to alarm mould
Block sends instruction, and alarm module receives alarm after instruction.
In the present embodiment, the detection circuit is made up of high-speed comparator and electric bridge zeroing circuit, the electric bridge zeroing
Circuit is used to test charging gun wire harness insulating resistance value, and data are given after the high-speed comparator is used for data analysis and transimiison analysis
Data acquisition module.Electric bridge zeroing circuit is as shown in Figure 2.Insulaion resistance to be measured can be drawn by figureR X For：
（1）
When the bridge balance of R1, R2, R3 and R4 composition,
（2）
From formula (2), work as RXWhen very big, UXVery little, to ensure measurement accuracy need pairU X Signal is amplified.If amplification
Device exportsU xk , multiplication factor isk, then formula (2) can be write as
（3）
It can be seen thatR X Measured value and applied voltageuIt is unrelated.When givenk、R3WithR4, and makeR X Bridge balance when=0, accessR X As long as measure afterwardsU ref WithU xk , then can be by formula（3）Try to achieve insulaion resistanceR X 。
Wherein, by single-chip microcomputer C8051F020 and C8051F021 composition control circuit, it is internally integrated SOC control units
There is DAM controllers can complete the high-speed transitions that A/D is transformed into RAM for 12 A/D and D/A converter, using C51 programmings to test
It is controlled the processing with data；Current sensor is SMI05mA current sensors, and signal conditioning circuit is by LF253 and OP07
Chip forms, and high-speed comparator is ADCMP600 chips, and I/O unit is computer, due to test block interface and detection
System interface not necessarily matches, and need to be connected by switching tooling with detecting system, the end interface connecting detection system of switching tooling one,
One end connects switching test part, is cable between the end interface of switching tooling two.
Circuit overcurrent protection belongs to prior art, the part and the structure category industry that above example does not describe in detail
Well-known components and common structure or conventional means, do not describe one by one here.
Exemplified as above is only for example, not forming to the scope of protection of the utility model to of the present utility model
Limitation, it is every to be belonged to the same or analogous design of the utility model within protection scope of the present invention.
Claims (5)
- A kind of 1. new-energy automobile charging gun detecting system, it is characterised in that：Including be sequentially connected electrically SOC control units, number According to acquisition module, detection circuit, the detection circuit connects charging gun by switching tooling, and insulated electro is carried out to charging gun wire harness Resistance is tested, and the detection circuit includes comparison circuit, and insulaion resistance standard value is preserved in the comparison circuit, by detection electricity The insulating resistance value result that test obtains is sent to data acquisition module by road compared with insulaion resistance standard value, and by comparative result Block；Described SOC control units connect an I/O unit.
- A kind of 2. new-energy automobile charging gun detecting system according to claim 1, it is characterised in that：The data acquisition Module includes current sensor and signal conditioning circuit, and the electric rifle wire harness loop current signals for detecting electric circuit inspection are passed by electric current Sensor entering signal modulate circuit, current signal progress I/V conversions are made to meet SOC control units A/ in signal conditioning circuit The voltage signal of D input ranges.
- A kind of 3. new-energy automobile charging gun detecting system according to claim 2, it is characterised in that：Also include overcurrent Protection circuit, current protecting circuit connection signal conditioning circuit and SOC control units, the circuit overcurrent protection is according to signal The voltage signal of modulate circuit output, current limit signal is sent to SOC control units.
- A kind of 4. new-energy automobile charging gun detecting system according to claim 1, it is characterised in that：The detection circuit It is made up of high-speed comparator and electric bridge zeroing circuit, the electric bridge zeroing circuit is used to test charging gun wire harness insulating resistance value, Data are to data acquisition module after the high-speed comparator is used for data analysis and transimiison analysis.
- A kind of 5. new-energy automobile charging gun detecting system according to claim 2, it is characterised in that：The current sense Device is Hall current sensor or SMI05mA current sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720506569.4U CN206818793U (en) | 2017-05-09 | 2017-05-09 | A kind of new-energy automobile charging gun detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720506569.4U CN206818793U (en) | 2017-05-09 | 2017-05-09 | A kind of new-energy automobile charging gun detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206818793U true CN206818793U (en) | 2017-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720506569.4U Expired - Fee Related CN206818793U (en) | 2017-05-09 | 2017-05-09 | A kind of new-energy automobile charging gun detecting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113138319A (en) * | 2021-04-29 | 2021-07-20 | 黄冈格罗夫氢能汽车有限公司 | Hydrogen fuel automobile wire harness loading detection system, circuit and method |
-
2017
- 2017-05-09 CN CN201720506569.4U patent/CN206818793U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113138319A (en) * | 2021-04-29 | 2021-07-20 | 黄冈格罗夫氢能汽车有限公司 | Hydrogen fuel automobile wire harness loading detection system, circuit and method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171229 |
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| CF01 | Termination of patent right due to non-payment of annual fee |