CN111948474A - Testing device and method for electronic locking device of electric automobile charging interface - Google Patents
Testing device and method for electronic locking device of electric automobile charging interface Download PDFInfo
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- CN111948474A CN111948474A CN202010714345.9A CN202010714345A CN111948474A CN 111948474 A CN111948474 A CN 111948474A CN 202010714345 A CN202010714345 A CN 202010714345A CN 111948474 A CN111948474 A CN 111948474A
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- electric automobile
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- 238000012360 testing method Methods 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims description 14
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
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Abstract
The invention provides a testing device for an electronic locking device of an electric automobile charging interface, which comprises a box body, a 12V power supply module, an alternating current contactor, a time relay, a counting relay and a control signal output line, wherein the 12V power supply module, the alternating current contactor, the time relay, the counting relay and the control signal output line are arranged on the box body; the system comprises a 12V power supply module, a time relay, an alternating current contactor and a control signal output line, wherein the 12V power supply module, the time relay, the alternating current contactor and the control signal output line form a control signal output system, and the control signal output system outputs +/-12V direct current electric signals and is used for controlling the locking and unlocking of the state of the electronic locking device of the charging interface of the electric automobile; the AC contactor, the equipment start-stop button and the counting relay form a test counting system. The reliability and the effectiveness of the electronic locking device of the electric automobile charging interface in the whole life cycle of the electric automobile are verified through tests, and the reliability and the effectiveness of the electronic locking device of the electric automobile charging interface can be still maintained after ten thousand times of locking/unlocking circulation.
Description
Technical Field
The invention belongs to the technical field of testing, and particularly relates to a testing device and method for an electronic locking device of an electric automobile charging interface.
Background
With the continuous and vigorous development of the electric automobile industry, the annual sales volume of electric automobiles is rapidly increased, and electric automobiles gradually go into thousands of households. In order to ensure the safety of the charging process of the electric automobile, an electronic locking device is specifically required to be installed on a direct-current charging interface of the electric automobile in the national standard of part 1 general requirement of a connecting device for conducting charging of the electric automobile GB/T20234.1-2015, so that the electronic locking device of the charging interface of the electric automobile is in a locking state in the direct-current charging process of the electric automobile, and the occurrence of electric shock of personnel is avoided. In addition, it needs to be understood that each electric automobile can be charged with high frequency in the whole life cycle, so that the electronic locking device of the electric automobile charging interface needs to be guaranteed to operate reliably and effectively in the whole life cycle, and the safety of personnel and property can be guaranteed to the maximum extent.
Although the reliability and the effectiveness of the electronic locking device of the electric automobile charging interface are important in the charging process of the electric automobile, no test equipment capable of systematically verifying the reliability and the effectiveness of the electronic locking device of the electric automobile charging interface in the whole life cycle exists in the market at present, so that great potential safety hazards exist in daily use of the electric automobile.
Disclosure of Invention
In view of this, the invention aims to provide a testing device for an electronic locking device of an electric vehicle charging interface, which verifies the reliability and effectiveness of the electronic locking device of the electric vehicle charging interface in the whole life cycle of the electric vehicle through tests, and makes clear that the electronic locking device of the electric vehicle charging interface can still keep the reliable and effective performance after ten thousand locking/unlocking cycles.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a test device for testing the service life of an electronic locking device of a charging interface of an electric automobile comprises a box body, a box body fixing seat, a 12V power module, an alternating current contactor, a time relay, a counting relay, a circuit breaker, a control signal output line, an equipment operation indicator lamp and an equipment start-stop button;
in the control signal output system, the 12V power supply module provides a +/-12V direct current electric signal, the +/-12V direct current electric signal passes through the time relay and is sent to the +/-12V direct current electric signal according to a preset frequency, the alternating current contactor converts the +/-12V direct current electric signal into a-12V direct current electric signal, and finally the +/-12V direct current electric signal and the-12V direct current electric signal are output according to a set requirement rule, and the locking and unlocking of the state of the electronic locking device of the charging interface of the electric automobile are controlled through the control signal output line;
the AC contactor, the equipment start-stop button and the counting relay are matched together to form a test counting system, the total test times are set in the counting relay before the test is started, the actual test times (the times that the testing machine sends +/-12V direct-current electric signals and-12V direct-current electric signals as required) are fed back through the AC contactor, and the test is stopped when the actual test times reach the total test times set in advance by the counting relay; in addition, the equipment start-stop button can restart the equipment and return the test value of the counting relay to zero so as to restart the test; the equipment operation indicator lamp is used for displaying whether the testing machine operates normally.
The invention also provides a test method for testing the service life of the electronic locking device of the electric automobile charging interface, which comprises the following steps:
before the test begins, a signal wire of the electric automobile charging interface locking device is connected with a control signal output wire of equipment, a time relay is adjusted according to the frequency required by the test, the equipment is powered on with 220V alternating current, and then the test times are set on a counting relay according to the test requirements.
After preparation before the test is finished, pressing the equipment start-stop button, observing and determining whether the electric automobile charging interface locking device normally finishes locking and unlocking for a specified number of times, and if the equipment and the test can normally finish the locking and unlocking, judging the composite requirement of the electric automobile charging interface locking device through the equipment and the test;
if the locking can not be normally completed, firstly observing whether the circuit breaker is disconnected, if the circuit breaker is disconnected, switching on the circuit breaker again, pressing the equipment start-stop button again, and repeating the steps until the electric automobile charging interface locking device can normally complete locking and unlocking for the specified times;
if the circuit breaker is not disconnected, further checking whether the electric automobile charging interface locking device is normally connected with the control signal output line, if the connection is abnormal, reconnecting is needed, and the connection is ensured to be normal;
if the electric automobile charging interface locking device is normally connected with the control signal output line, whether devices such as an alternating current contactor, a time relay and a counting relay are damaged or not is checked, if the related devices are damaged, the power is cut off and the related devices are replaced, and after the power is turned on again, a start-stop button is pressed to start a test;
if the devices such as the alternating current contactor, the time relay, the counting relay and the like are detected to be not damaged, a 12V direct current power supply is needed to energize a plus 12V direct current electric signal and a minus 12V direct current electric signal to the electric automobile charging interface locking device, whether the locking and the unlocking are normal is observed, if the locking and the unlocking can be normal, the device start-stop button is pressed again to start the test;
if the electric automobile charging interface locking device still can not be normally locked and unlocked, the electric automobile charging interface locking device can be judged to be in fault, and the requirements are not met.
Compared with the prior art, the device and the method for testing the electronic locking device of the electric automobile charging interface have the following advantages:
the electronic locking device of the electric automobile charging interface is controlled to be locked and unlocked circularly by regularly and continuously sending the plus 12V electric signal and the minus 12V electric signal to the electronic locking device of the electric automobile charging interface, and the working state of the electronic locking device of the electric automobile charging interface in the charging process of the electric automobile is simulated. And the locking and unlocking frequency of the electronic locking device of the electric automobile charging interface is adjusted according to the actual test requirements, the operation is stopped after ten thousand cycles are completed, and a tester judges the reliability and effectiveness of the electronic locking device of the electric automobile charging interface by observing the actual performance of the electronic locking device of the electric automobile charging interface in the test process.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the system of the present invention.
FIG. 3 is a flow chart of the test run of the present invention.
Wherein: 1-a box body; 2-box body fixing seat; a 3-12V power supply module; 4-an ac contactor; 5-a time relay; 6-counting relay; 7-a circuit breaker; 8-control signal output line; 9-equipment running indicator light; 10-device start-stop button.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1-3, the invention provides a testing device and a testing method for testing the service life of an electronic locking device of an electric vehicle charging interface, comprising a box body 1, a box body fixing seat 2, a 12V power supply module 3, an alternating current contactor 4, a time relay 5, a counting relay 6, a circuit breaker 7, a control signal output line 8, an equipment operation indicator lamp 9 and an equipment start-stop button 10.
The box body 1 is provided with a box body fixing seat 2, and the box body fixing seat 2 firmly fixes the equipment on the ground or a wall body so as to improve the safety of the equipment;
it needs to be explained that the operation mode of the electronic locking device of the charging interface of the electric automobile in the current market is commonly an open + 12V direct current signal starting locking mode, and an open-12V direct current signal starting unlocking mode;
the circuit breaker 7 is a main component of a test safety protection system and ensures the safety of equipment and personnel;
the 12V power module 3, the time relay 5, the alternating current contactor 4 and the control signal output line 8 are combined to be matched together to form a control signal output system, and a +/-12V direct current signal and a-12V direct current signal are output to control the locking and unlocking of the state of the electronic locking device of the electric automobile charging interface;
in the control signal output system, the 12V power module 3 provides a + 12V direct current electrical signal, the + 12V direct current electrical signal passes through the time relay 5 and is sent to the + 12V direct current electrical signal according to a preset frequency, the alternating current contactor 4 converts the + 12V direct current electrical signal into a-12V direct current electrical signal, and finally the + 12V direct current electrical signal and the-12V direct current electrical signal are output according to a preset requirement rule, and the locking and unlocking of the state of the electronic locking device of the charging interface of the electric automobile are controlled through the control signal output line 8;
the AC contactor 4, the equipment start-stop button 10 and the counting relay 6 are matched together to form a test counting system, the total test times are set in the counting relay 6 before the test is started, the actual test times (the times that the tester sends a 12V direct-current electric signal and a 12V direct-current electric signal as required) are fed back through the AC contactor 4, and the test is stopped when the actual test times reach the total test times set in advance by the counting relay 6; in addition, the equipment start-stop button 10 can restart the equipment and zero the test value of the counting relay 6 to restart the test; the equipment operation indicator lamp 9 is used for displaying whether the testing machine operates normally.
Before the test begins, a signal wire of the electric automobile charging interface locking device is connected with a control signal output wire 8 of equipment, a time relay 5 is adjusted according to the frequency required by the test, the equipment is electrified with 220V alternating current, and then the test times (the national standard requirement is ten thousand times) are set on a counting relay 6 according to the test requirement.
After preparation before the test is finished, pressing the equipment start-stop button 10, observing and determining whether the locking and unlocking of the electric automobile charging interface locking device are normally finished for a specified number of times, and if the locking and unlocking can be normally finished, judging the composite requirement of the electric automobile charging interface locking device through the equipment and the test;
if the locking can not be normally completed, firstly observing whether the breaker 7 is disconnected, if the breaker 7 is disconnected, switching on the breaker 7 again, pressing the equipment start-stop button 10 again, and repeating the steps until the electric automobile charging interface locking device can normally complete locking and unlocking for a specified number of times;
if the circuit breaker 7 is not disconnected, further checking whether the electric automobile charging interface locking device is normally connected with the control signal output line 8, if the connection is abnormal, reconnecting is needed, and the connection is ensured to be normal;
if the electric automobile charging interface locking device is normally connected with the control signal output line 8, whether devices such as the alternating current contactor 4, the time relay 5 and the counting relay 6 are damaged or not is checked, if the related devices are damaged, the power is cut off and the related devices are replaced, and after the power is turned on again, a start-stop button is pressed to start a test;
if the devices such as the alternating current contactor 4, the time relay 5, the counting relay 6 and the like are detected to be not damaged, a 12V direct current power supply is needed to supply a plus 12V direct current electric signal and a minus 12V direct current electric signal to the electric automobile charging interface locking device, whether the electric automobile charging interface locking device is normally locked and unlocked is observed, and if the electric automobile charging interface locking device can be normally locked and unlocked, the equipment start-stop button 10 is pressed again to start the test;
if the electric automobile charging interface locking device still can not be normally locked and unlocked, the electric automobile charging interface locking device can be judged to be in fault, and the requirements are not met.
The electronic locking device of the electric automobile charging interface is controlled to be locked and unlocked circularly by regularly and continuously sending the plus 12V electric signal and the minus 12V electric signal to the electronic locking device of the electric automobile charging interface, and the working state of the electronic locking device of the electric automobile charging interface in the charging process of the electric automobile is simulated. And the locking and unlocking frequency of the electronic locking device of the electric automobile charging interface is adjusted according to the actual test requirements, the operation is stopped after ten thousand cycles are completed, and a tester judges the reliability and effectiveness of the electronic locking device of the electric automobile charging interface by observing the actual performance of the electronic locking device of the electric automobile charging interface in the test process.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides an electric automobile interface electron locking means testing arrangement that charges which characterized in that: the device comprises a box body, a 12V power supply module, an alternating current contactor, a time relay, a counting relay and a control signal output line, wherein the 12V power supply module, the alternating current contactor, the time relay, the counting relay and the control signal output line are arranged on the box body;
the system comprises a 12V power supply module, a time relay, an alternating current contactor and a control signal output line, wherein the 12V power supply module, the time relay, the alternating current contactor and the control signal output line form a control signal output system, and the control signal output system outputs +/-12V direct current electric signals and is used for controlling the locking and unlocking of the state of the electronic locking device of the charging interface of the electric automobile;
the AC contactor, the equipment start-stop button and the counting relay form a test counting system.
2. The electric vehicle charging interface electronic locking device testing device of claim 1, characterized in that: and a box body fixing seat is arranged below the box body and fixes the equipment on the ground or a wall body.
3. The electric vehicle charging interface electronic locking device testing device of claim 1, characterized in that: the box body is also provided with a breaker for ensuring the safety of equipment and personnel.
4. The electric vehicle charging interface electronic locking device testing device of claim 3, characterized in that: the circuit breaker is respectively connected with a 220V alternating current power supply module, a 12V power supply module, an equipment operation indicator lamp and an alternating current contactor.
5. The electric vehicle charging interface electronic locking device testing device of claim 1, characterized in that: and an equipment operation indicator lamp is further arranged on the box body and used for displaying whether the testing machine operates normally in a power-on mode.
6. The electric vehicle charging interface electronic locking device testing device of claim 1, characterized in that: the box body is also provided with an equipment start-stop button which is used for restarting equipment.
7. The electric vehicle charging interface electronic locking device testing device of claim 1, characterized in that: in the control signal output system, the 12V power supply module provides a plus 12V direct current electric signal, the plus 12V direct current electric signal passes through the time relay and is sent to the plus 12V direct current electric signal according to a preset frequency, the alternating current contactor converts the plus 12V direct current electric signal into a minus 12V direct current electric signal, and finally the plus 12V direct current electric signal and the minus 12V direct current electric signal are output, and the locking and unlocking of the state of the electronic locking device of the charging interface of the electric automobile are controlled through a control signal output line.
8. The electric vehicle charging interface electronic locking device testing device of claim 1, characterized in that: the test counting system sets the total test times in the counting relay, feeds back the actual test times through the alternating current contactor, and stops the test when the actual test times reach the total test times set in advance in the counting relay.
9. A method for testing an electronic locking device of an electric automobile charging interface is characterized by comprising the following steps: the method comprises the following steps:
preparing before testing;
starting an equipment start-stop button during testing, and if the electric automobile charging interface locking device can normally complete locking and unlocking for specified times, judging the composite requirement of the electric automobile charging interface locking device through the equipment and tests;
if the locking can not be normally completed, firstly judging whether the circuit breaker is disconnected, if the circuit breaker is disconnected, switching on the circuit breaker again, and starting the equipment start-stop button again, and repeating the steps until the electric automobile charging interface locking device can normally complete locking and unlocking for the specified times;
if the circuit breaker is not disconnected, further checking whether the electric automobile charging interface locking device is normally connected with the control signal output line, if the connection is abnormal, reconnecting is needed, and the connection is ensured to be normal;
if the electric automobile charging interface locking device is normally connected with the control signal output line, whether the alternating current contactor, the time relay and the counting relay are damaged or not is checked, if the relevant components are damaged, the power is cut off and the relevant components are replaced, and after the power is turned on again, the start-stop button is started to start the test;
if the AC contactor, the time relay and the counting relay are checked to find that the components are not damaged, a 12V direct-current power supply is needed to energize a plus 12V direct-current electric signal and a minus 12V direct-current electric signal to the charging interface locking device of the electric automobile, whether the locking and the unlocking are normal is observed, and if the locking and the unlocking can be normal, the equipment start-stop button is pressed again to start the test;
if the electric automobile charging interface locking device still can not be normally locked and unlocked, the electric automobile charging interface locking device can be judged to be in fault, and the requirements are not met.
10. The method for testing the electronic locking device of the electric automobile charging interface according to claim 9, characterized in that: the preparation work before the test comprises the steps of connecting a signal wire of a charging interface locking device of the electric automobile with a control signal output wire of equipment, adjusting a time relay according to the frequency required by the test, enabling the equipment to be powered by 220V alternating current, and setting the test times on a counting relay according to the test requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010714345.9A CN111948474A (en) | 2020-07-21 | 2020-07-21 | Testing device and method for electronic locking device of electric automobile charging interface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010714345.9A CN111948474A (en) | 2020-07-21 | 2020-07-21 | Testing device and method for electronic locking device of electric automobile charging interface |
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| CN111948474A true CN111948474A (en) | 2020-11-17 |
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| CN202010714345.9A Pending CN111948474A (en) | 2020-07-21 | 2020-07-21 | Testing device and method for electronic locking device of electric automobile charging interface |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113189475A (en) * | 2021-05-12 | 2021-07-30 | 中国第一汽车股份有限公司 | Function test system and method of locking assembly |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208383458U (en) * | 2018-05-21 | 2019-01-15 | 河南上达福泽机电科技有限公司 | A kind of electric door lock for vehicle durability test instrument |
| CN213023372U (en) * | 2020-07-21 | 2021-04-20 | 中汽研汽车检验中心（天津）有限公司 | Testing device for electronic locking device of electric automobile charging interface |
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2020
- 2020-07-21 CN CN202010714345.9A patent/CN111948474A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208383458U (en) * | 2018-05-21 | 2019-01-15 | 河南上达福泽机电科技有限公司 | A kind of electric door lock for vehicle durability test instrument |
| CN213023372U (en) * | 2020-07-21 | 2021-04-20 | 中汽研汽车检验中心（天津）有限公司 | Testing device for electronic locking device of electric automobile charging interface |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113189475A (en) * | 2021-05-12 | 2021-07-30 | 中国第一汽车股份有限公司 | Function test system and method of locking assembly |
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