CN104076218A - Temperature rise test instrument and test method for large current charging connector - Google Patents
Temperature rise test instrument and test method for large current charging connector Download PDFInfo
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- CN104076218A CN104076218A CN201410314651.8A CN201410314651A CN104076218A CN 104076218 A CN104076218 A CN 104076218A CN 201410314651 A CN201410314651 A CN 201410314651A CN 104076218 A CN104076218 A CN 104076218A
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Abstract
The invention discloses a temperature rise test instrument and a test method for a large current charging connector. The control input end of an intelligent current rise device in the temperature rise test instrument is connected with the current control end of a master controller, the output end of the intelligent current rise device is connected with the current input end of the charging connector to be tested, thermocouples are distributed on various positions on the outer surface of and inside the charging connector to be tested and are connected with a temperature routing inspection device, and the temperature routing inspection device is connected with the master controller. Changes of large current flowing through the charging connector can be simulated by the temperature rise test instrument and the test method for the large current charging connector, by analyzing corresponding acquired parameters, the temperature rise capacity and the external allowed temperature of the charging connector are comprehensively researched and evaluated, human factors existing in the temperature rise test process can be eliminated, in a long-time temperature rise test process, relevant current parameters are set through the master controller for automatic detection, working efficiency is improved, the concept is ingenuous, and the temperature rise test instrument and the test method for the large current charging connector have good application prospects.
Description
Technical field
The present invention relates to a kind of temperature-rise tester for large current charge connector and method of testing, belong to temperature detection technical field.
Background technology
Along with world economy sustained and rapid development, the energy shortage bringing thus and problem of environmental pollution will be more outstanding, new-energy automobile is as the vehicles of zero pollution, zero-emission, high energy efficiency, low energy consumption, bearing the important task of energy-saving and emission-reduction, benefit at last productive life and ecologic environment, the charge connector of electric automobile is connected with the charging of power supply for electric automobile, be one of key equipment of electric automobile conduction charging system, the quality of charge connector properties of product will produce directly impact to the safe and reliable operation of electric automobile.
We know, the charging current of connector of flowing through in charging process is very large, and can change with power network fluctuation, when temperature rise too high, the serviceable life of charge connector will be shortened, can there is blasting phenomena in excess Temperature, and charging process and user's security is caused to very large threat, existing charge connector detection technique, do not relate to temperature rise (temperature rise) characteristic detection device of charge connector, when common laboratory temperature test, need to prepare lot of materials, after complicated wiring, just can carry out, limit by environment, test procedure complexity, too much circuit also needs to consume more electric weight, cause testing accuracy not high, thereby cause puzzlement to the test of charging connector for electric automobile temperature characteristic.
Therefore designing a kind of temperature-rise tester that is applicable to electric automobile large current charge connector, conveniently carry out temperature characteristic and detect, reduce loaded down with trivial details link, reduce test loss, and can record test partial data, is the current technical issues that need to address.
Summary of the invention
The object of the invention is to overcome existing charge connector detection technique, do not relate to temperature rise (temperature rise) characteristic detection device of charge connector, cannot carry out temperature characteristic and detect, reduce loaded down with trivial details link, reduce the problems such as test loss.Temperature-rise tester for large current charge connector of the present invention and method of testing, can analog stream through the large curent change of charge connector, the corresponding parameter collecting by analysis, charge connector temperature rise ability and outside allowable temperature thereof are done to comprehensive study and evaluation, effective detection means and instrument are provided, be skillfully constructed, have a good application prospect.
In order to achieve the above object, the technical solution adopted in the present invention is:
For a temperature-rise tester for large current charge connector, it is characterized in that: comprise
Intelligence current lifting device, for regulating the size that flows through charge connector electric current to be measured;
Thermopair, is distributed in the outside surface of charge connector to be measured, inner each position, for the outside surface of Real-time Collection charge connector to be measured, the temperature at inner each position;
Temperature patrol inspection device, the temperature value arriving for gathering each road thermocouple induction, and pass to main control computer;
Main control computer, through the current value of charge connector, records the corresponding temperature value at the outside surface of charge connector, inner each position for monitoring in real time;
Power module, for providing working power, external alternating current 220V civil power to intelligent current lifting device, temperature patrol inspection device, main control computer;
The control input end of described intelligent current lifting device is connected with the current controling end of main control computer, the intelligence output terminal of current lifting device and the current input terminal of charge connector to be measured are connected, described thermopair is distributed in the outside surface of charge connector to be measured, inner each position, and be connected with temperature patrol inspection device, described temperature patrol inspection device is connected with main control computer.
Aforesaid a kind of temperature-rise tester for large current charge connector, is characterized in that: the control input end of described intelligent current lifting device is to be connected with current controling end by Ethernet or CAN bus interface;
The output terminal of described intelligent current lifting device comprises output cathode and output negative pole, described output cathode connects and is jointly connected with plug terminal DC1+, the DC1-of charge connector to be measured, and described output negative pole connects and is jointly connected with female terminal DC2+, the DC2-of charge connector to be measured.
Aforesaid a kind of temperature-rise tester for large current charge connector, is characterized in that: described temperature patrol inspection device is connected with main control computer by Ethernet or CAN bus interface.
Aforesaid a kind of temperature-rise tester for large current charge connector, is characterized in that: described main control computer comprises
Control module, for regulating the current value of the charge connector to be measured of flowing through;
Memory module, obtains at the outside surface of charge connector to be measured, the temperature value at inner each position for preserving;
Computing module, according to the temperature value at the outside surface of charge connector to be measured, inner each position, analyzes the temperature characteristic of charge connector to be measured;
Processing module, when the outside surface of charge connector to be measured, the temperature value at inner each position, the temperature value at arbitrary place exceeds safe range, sends warning, for ending test.
Aforesaid a kind of temperature-rise tester for large current charge connector, is characterized in that: described processing module comprises alarm unit and abort unit.
Aforesaid a kind of temperature-rise tester for large current charge connector, it is characterized in that: described intelligent current lifting device, main control computer is placed in cabinet, the temperature patrol inspection bottom of device back of the body is provided with draw-in groove, be fixed on the guide rail on cabinet, the bottom of described cabinet is provided with the roller moving for temperature-rise tester, described intelligent current lifting device and temperature patrol inspection device, between main control computer, be provided with dividing plate, the described cabinet left surface first half is provided with thermopair outlet opening, described cabinet left surface Lower Half is provided with the output terminal leading-out terminal hole of intelligent current lifting device, described cabinet right flank is provided with the input terminal hole of stopping knob and power module for the urgency of control break unit.
Based on the method for testing of above-mentioned temperature-rise tester, it is characterized in that: comprise the following steps,
Step (1), is connected charge connector to be measured with temperature-rise tester, and by external the input terminal hole of the power module in temperature-rise tester alternating current 220V civil power;
Step (2), communicates operation by main control computer to intelligent current lifting device, regulates the current value of controlling the charge connector to be measured of flowing through;
Step (3), by the outside surface of each road thermopair sensing charge connector to be measured, the temperature value at inner each position;
Step (4), sends to main control computer the temperature value that each road thermopair collects by temperature patrol inspection device in real time;
Step (5), according to the temperature value at the outside surface of the charge connector to be measured of stored record, inner each position, the temperature characteristic mode that main control computer is analyzed charge connector to be measured is as follows:
A) main control computer is controlling before intelligent current lifting device output current, using the temperature value at the outside surface of the charge connector to be measured obtaining, inner each position as temperature reference value, for T1, T2 ..., Tn;
B) the flow through current value of charge connector to be measured of main control computer control is rated current I
0time, in the time reaching temperature stabilization state, the outside surface of the charge connector to be measured of record, the temperature rating at inner each position, for T1 ', T2 ' ..., Tn ';
C) the corresponding temperature of calculating the outside surface of charge connector to be measured, inner each position is appreciated, △ T=Tn '-Tn;
Step (6), evaluates the temperature rise ability of charge connector to be measured, when the outside surface of charge connector to be measured, inner each position temperature appreciation △ T are all no more than corresponding safe range, is judged to test passes; If exist the temperature appreciation △ T of a test point to exceed corresponding safe range, be judged to test failure.
The method of testing of aforesaid temperature-rise tester, is characterized in that: step (5) b) in the time reaching temperature stabilization state, temperature stabilization state is to appreciate all lower than 2K in the temperature that be no less than continuous three readings of 10 minutes interval time.
The invention has the beneficial effects as follows: the temperature-rise tester for large current charge connector of the present invention and method of testing, can analog stream through the large curent change of charge connector, the corresponding parameter collecting by analysis, charge connector temperature rise ability and outside allowable temperature thereof are done to comprehensive study and evaluation, eliminate the human factor existing in temperature rise test process, in long-time temperature rise test process, setting correlated current parameter by main control computer detects automatically, improve work efficiency, be skillfully constructed, have a good application prospect.
Brief description of the drawings
Fig. 1 is the system chart of the temperature-rise tester for large current charge connector of the present invention.
Fig. 2 is the structural representation of the temperature-rise tester for large current charge connector of the present invention.
Fig. 3 is the process flow diagram of temperature-rise tester method of testing of the present invention.
Embodiment
Below in conjunction with Figure of description, the invention will be further described.Following examples are only for technical scheme of the present invention is more clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1, a kind of temperature-rise tester for large current charge connector, can analog stream through the large curent change of charge connector, the corresponding parameter collecting by analysis, does comprehensive study and evaluation to charge connector temperature rise ability and outside allowable temperature thereof, eliminates the human factor existing in temperature rise test process, in long-time temperature rise test process, set correlated current parameter by main control computer and automatically detect, improved work efficiency, comprise
Intelligence current lifting device, for regulating the size that flows through charge connector electric current to be measured;
Thermopair, is distributed in the outside surface of charge connector to be measured, inner each position, for the outside surface of Real-time Collection charge connector to be measured, the temperature at inner each position;
Temperature patrol inspection device, the temperature value arriving for gathering each road thermocouple induction, and pass to main control computer;
Main control computer, through the current value of charge connector, records the corresponding temperature value at the outside surface of charge connector, inner each position for monitoring in real time;
Power module, for providing working power, external alternating current 220V civil power to intelligent current lifting device, temperature patrol inspection device, main control computer;
The control input end of described intelligent current lifting device is connected with the current controling end of main control computer, the intelligence output terminal of current lifting device and the current input terminal of charge connector to be measured are connected, described thermopair is distributed in the outside surface of charge connector to be measured, inner each position, and be connected with temperature patrol inspection device, described temperature patrol inspection device is connected with main control computer.
The control input end of described intelligent current lifting device is to be connected with current controling end by Ethernet or CAN bus interface;
The output terminal of described intelligent current lifting device comprises output cathode and output negative pole, output cathode connects and is jointly connected with plug terminal DC1+, the DC1-of charge connector to be measured, and output negative pole connects and is jointly connected with female terminal DC2+, the DC2-of charge connector to be measured.
Described temperature patrol inspection device is connected with main control computer by Ethernet or CAN bus interface.
Described main control computer comprises:
Control module, for regulating the current value of the charge connector to be measured of flowing through;
Memory module, obtains at the outside surface of charge connector to be measured, the temperature value at inner each position for preserving;
Computing module, according to the temperature value at the outside surface of charge connector to be measured, inner each position, analyzes the temperature characteristic of charge connector to be measured;
Processing module, when the outside surface of charge connector to be measured, the temperature value at inner each position, the temperature value at arbitrary place exceeds safe range, send warning, be used for ending test, the safe range is here the requirements that meet in GB/T 20234.1-2011 6.13 regulations, 1) grip zones for plug and vehicle plug of charge connector to be measured, the maximum temperature of its permission should not exceed: 50 DEG C of metal parts; 60 DEG C of non-metallic components; 2) the non-promptly position allowable temperature that can contact with vehicle plug for plug of charge connector to be measured should not exceed: 60 DEG C of metal parts; 85 DEG C of non-metallic components; 3) temperature rise of the connection terminal of charge connector to be measured is no more than 50K.
Described processing module comprises alarm unit and abort unit, alarm unit is to exceed tolerance value (safe range) when arbitrary position, inside of charge connector to be measured and the temperature of outside surface thereof, and sending reports to the police automatically or is manually adjusted and flow through by the current value of charge connector to be measured by main control computer with prompting laboratory technician; End module, when the temperature of the inner arbitrary position of charge connector to be measured and outside surface thereof is not in safe range, prompting laboratory technician ends the use of temperature rise test process and test instrument automatically or manually by main control computer.
As shown in Figure 2, described intelligent current lifting device, main control computer is placed in cabinet 1, the temperature patrol inspection bottom of device back of the body is provided with draw-in groove, be fixed on the guide rail 8 on cabinet 1, the bottom of cabinet 1 is provided with the roller 2 moving for temperature-rise tester, intelligence current lifting device and temperature patrol inspection device, between main control computer, be provided with dividing plate 3, the cabinet 1 left surface first half is provided with thermopair outlet opening 4, cabinet 1 left surface Lower Half is provided with the output terminal leading-out terminal hole 5 of intelligent current lifting device, cabinet 1 right flank is provided with the input terminal hole 7 of stopping knob 6 and power module for the urgency of control break unit, suddenly stop knob 6, when test, occur in emergency circumstances, can stop immediately electric current output, the external 220V civil power in input terminal hole 7 of power module, whole temperature-rise tester is power 6～8kW in the time of normal test, need to join 20A sky and open one, ensure safety, own wt 50～80KG, roller 2 is so that mobile, before and after cabinet 1 body, be designed to heat radiator pattern simultaneously, facilitate circulation of air.
As shown in Figure 3, based on the method for testing of above-mentioned temperature-rise tester, comprise the following steps,
Step (1), is connected charge connector to be measured with temperature-rise tester, and by external the input terminal hole of the power module in temperature-rise tester alternating current 220V civil power;
Step (2), communicates operation by main control computer to intelligent current lifting device, regulates the current value of controlling the charge connector to be measured of flowing through;
Step (3), by the outside surface of each road thermopair sensing charge connector to be measured, the temperature value at inner each position;
Step (4), sends to main control computer the temperature value that each road thermopair collects by temperature patrol inspection device in real time;
Step (5), according to the temperature value at the outside surface of the charge connector to be measured of stored record, inner each position, the temperature characteristic mode that main control computer is analyzed charge connector to be measured is as follows:
A) main control computer is controlling before intelligent current lifting device output current, using the temperature value at the outside surface of the charge connector to be measured obtaining, inner each position as temperature reference value, for T1, T2 ..., Tn;
B) the flow through current value of charge connector to be measured of main control computer control is rated current I
0time, in the time reaching temperature stabilization state, the outside surface of the charge connector to be measured of record, the temperature rating at inner each position, for T1 ', T2 ' ..., Tn ';
C) the corresponding temperature of calculating the outside surface of charge connector to be measured, inner each position is appreciated, △ T=Tn '-Tn;
Step (6), evaluates the temperature rise ability of charge connector to be measured, when the outside surface of charge connector to be measured, inner each position temperature appreciation △ T are all no more than corresponding safe range, is judged to test passes; If exist the temperature appreciation △ T of a test point to exceed corresponding safe range, be judged to test failure.
Described step (5) b) in the time reaching temperature stabilization state, temperature stabilization state is to appreciate all lower than 2K in the temperature that be no less than continuous three readings of 10 minutes interval time.
The method for testing temperature rise of whole charge connector to be measured, the temperature at the current value of the charge connector to be measured of flowing through and corresponding each test position all must be stored, and while generation, transfers storage information for analyzing with convenient fault.
In sum, temperature-rise tester for large current charge connector of the present invention and method of testing, can analog stream through the large curent change of charge connector, the corresponding parameter collecting by analysis, charge connector temperature rise ability and outside allowable temperature thereof are done to comprehensive study and evaluation, eliminate the human factor existing in temperature rise test process, in long-time temperature rise test process, setting correlated current parameter by main control computer detects automatically, improve work efficiency, be skillfully constructed, have a good application prospect.
More than show and described ultimate principle of the present invention, principal character and advantage.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (8)
1. for a temperature-rise tester for large current charge connector, it is characterized in that: comprise
Intelligence current lifting device, for regulating the size that flows through charge connector electric current to be measured;
Thermopair, is distributed in the outside surface of charge connector to be measured, inner each position, for the outside surface of Real-time Collection charge connector to be measured, the temperature at inner each position;
Temperature patrol inspection device, the temperature value arriving for gathering each road thermocouple induction, and pass to main control computer;
Main control computer, through the current value of charge connector, records the corresponding temperature value at the outside surface of charge connector, inner each position for monitoring in real time;
Power module, for providing working power, external alternating current 220V civil power to intelligent current lifting device, temperature patrol inspection device, main control computer;
The control input end of described intelligent current lifting device is connected with the current controling end of main control computer, the intelligence output terminal of current lifting device and the current input terminal of charge connector to be measured are connected, described thermopair is distributed in the outside surface of charge connector to be measured, inner each position, and be connected with temperature patrol inspection device, described temperature patrol inspection device is connected with main control computer.
2. a kind of temperature-rise tester for large current charge connector according to claim 1, is characterized in that: the control input end of described intelligent current lifting device is to be connected with current controling end by Ethernet or CAN bus interface;
The output terminal of described intelligent current lifting device comprises output cathode and output negative pole, described output cathode connects and is jointly connected with plug terminal DC1+, the DC1-of charge connector to be measured, and described output negative pole connects and is jointly connected with female terminal DC2+, the DC2-of charge connector to be measured.
3. a kind of temperature-rise tester for large current charge connector according to claim 1, is characterized in that: described temperature patrol inspection device is connected with main control computer by Ethernet or CAN bus interface.
4. a kind of temperature-rise tester for large current charge connector according to claim 1, is characterized in that: described main control computer comprises
Control module, for regulating the current value of the charge connector to be measured of flowing through;
Memory module, obtains at the outside surface of charge connector to be measured, the temperature value at inner each position for preserving;
Computing module, according to the temperature value at the outside surface of charge connector to be measured, inner each position, analyzes the temperature characteristic of charge connector to be measured;
Processing module, when the outside surface of charge connector to be measured, the temperature value at inner each position, the temperature value at arbitrary place exceeds safe range, sends warning, for ending test.
5. a kind of temperature-rise tester for large current charge connector according to claim 4, is characterized in that: described processing module comprises alarm unit and abort unit.
6. a kind of temperature-rise tester for large current charge connector according to claim 1, it is characterized in that: described intelligent current lifting device, main control computer is placed in cabinet, the described temperature patrol inspection bottom of device back of the body is provided with draw-in groove, be fixed on the guide rail on cabinet, the bottom of described cabinet is provided with the roller moving for temperature-rise tester, described intelligent current lifting device and temperature patrol inspection device, between main control computer, be provided with dividing plate, the described cabinet left surface first half is provided with thermopair outlet opening, described cabinet left surface Lower Half is provided with the output terminal leading-out terminal hole of intelligent current lifting device, described cabinet right flank is provided with the input terminal hole of stopping knob and power module for the urgency of control break unit.
7. the method for testing based on temperature-rise tester claimed in claim 1, is characterized in that: comprises the following steps,
Step (1), is connected charge connector to be measured with temperature-rise tester, and by external the input terminal hole of the power module in temperature-rise tester alternating current 220V civil power;
Step (2), communicates operation by main control computer to intelligent current lifting device, regulates the current value of controlling the charge connector to be measured of flowing through;
Step (3), by the outside surface of each road thermopair sensing charge connector to be measured, the temperature value at inner each position;
Step (4), sends to main control computer the temperature value that each road thermopair collects by temperature patrol inspection device in real time;
Step (5), according to the temperature value at the outside surface of the charge connector to be measured of stored record, inner each position, the temperature characteristic mode that main control computer is analyzed charge connector to be measured is as follows:
A) main control computer is controlling before intelligent current lifting device output current, using the temperature value at the outside surface of the charge connector to be measured obtaining, inner each position as temperature reference value, for T1, T2 ..., Tn;
B) the flow through current value of charge connector to be measured of main control computer control is rated current I
0time, in the time reaching temperature stabilization state, the outside surface of the charge connector to be measured of record, the temperature rating at inner each position, for T1 ', T2 ' ..., Tn ';
C) the corresponding temperature of calculating the outside surface of charge connector to be measured, inner each position is appreciated, △ T=Tn '-Tn;
Step (6), evaluates the temperature rise ability of charge connector to be measured, when the outside surface of charge connector to be measured, inner each position temperature appreciation △ T are all no more than corresponding safe range, is judged to test passes; If exist the temperature appreciation △ T of a test point to exceed corresponding safe range, be judged to test failure.
8. the method for testing of temperature-rise tester according to claim 7, it is characterized in that: step (5) b) in the time reaching temperature stabilization state, temperature stabilization state is to appreciate all lower than 2K in the temperature that be no less than continuous three readings of 10 minutes interval time.
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| CN201410314651.8A CN104076218A (en) | 2014-07-03 | 2014-07-03 | Temperature rise test instrument and test method for large current charging connector |
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| CN104374493A (en) * | 2014-11-03 | 2015-02-25 | 金杯电工衡阳电缆有限公司 | High-capacity charging cable intermittent load test method |
| TWI594542B (en) * | 2017-01-10 | 2017-08-01 | 宏達國際電子股份有限公司 | Hand-held electronic apparatus, charging system, connector and charging management method thereof |
| CN110940881A (en) * | 2019-12-10 | 2020-03-31 | 许昌开普检测研究院股份有限公司 | Charging temperature rise test system |
| CN111929521A (en) * | 2020-08-18 | 2020-11-13 | 浙江华电器材检测研究所有限公司 | Temperature rise test device for connecting device for conduction charging |
| CN114234816A (en) * | 2021-12-10 | 2022-03-25 | 深圳市亚力盛电子股份有限公司 | New energy vehicle-mounted connector connection testing method and system and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111929521A (en) * | 2020-08-18 | 2020-11-13 | 浙江华电器材检测研究所有限公司 | Temperature rise test device for connecting device for conduction charging |
| CN114234816A (en) * | 2021-12-10 | 2022-03-25 | 深圳市亚力盛电子股份有限公司 | New energy vehicle-mounted connector connection testing method and system and storage medium |
| CN114234816B (en) * | 2021-12-10 | 2024-03-26 | 深圳市誉铭旺电子股份有限公司 | New energy vehicle-mounted connector connection test method, system and storage medium |
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