Charging Gun Holder Temperature Rise Test Fixture Measurement And Control System

Charging Gun Holder Temperature Rise Test Fixture Measurement And Control System

ZJ-JKWS03
This test equipment meets the requirements of Article 9.4.2.2 of GB/T 44263-2024 for the DC vehicle interface temperature protection function test. It can simulate the heating of the gun holder pin and test whether the charging gun head can sense over-temperature and automatically switch the charging pile power supply. The equipment adopts PLC and touch screen control, and the PDI thermostat automatically controls the temperature, realizing arbitrary adjustment of the temperature within the set range, constant temperature, and timing functions.

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Features
Technical Indicators
Overall Dimension

Meet the standard
DC vehicle interface temperature protection function test
The temperature protection function of the DC vehicle interface should be tested as follows. The test device for test 1 to test 5 is shown in Figure 7. If necessary, the charging connection device structure can be slightly damaged, and the impact of structural damage on the temperature characteristics of the charging connection device should be minimized.
Test 1 Calibration test: Turn on the heat exchange device (if any), the DC power supply equipment outputs the rated continuous current, and after the temperature rise of TS and T1 temperature sensors stabilizes, turn on the heating device and adjust the heating power to stabilize the temperature of the T1 temperature sensor at 105℃, and obtain the calibrated thermal fault power Pmn.
Test 2 Permanent slow fault test: Turn on the heat exchange device (if any), the DC power supply equipment outputs the rated continuous current, and applies the thermal fault power Pmin at the same time, and check whether the DC power supply equipment reduces the charging power or triggers a fault shutdown before the T1 temperature reaches 105℃.
Test 3 Permanent fast fault test: Turn on the heat exchange device (if any), the DC power supply device outputs the rated continuous current, and applies the thermal fault power 2XPmim at the same time to check whether the DC power supply device reduces the charging power or triggers a fault shutdown before the T1 temperature reaches 105°C.
Test 4 Sudden slow fault test: Turn on the heat exchange device (if any), the DC power supply device outputs the rated continuous current, and after the temperature rise of TS and T1 temperature sensors stabilizes, apply the thermal fault power Pm to check whether the DC power supply device triggers a fault shutdown before the T1 temperature reaches 105°C.
Test 5 Sudden fast fault test: Turn on the heat exchange device (if any), the DC power supply device outputs the rated continuous current, and after the temperature rise of TS and T1 temperature sensors stabilizes, apply the thermal fault power 2xPmin to check whether the DC power supply device triggers a fault shutdown before the T1 temperature reaches 105°C.
Test 6 Vehicle over-temperature protection test: In the energy transmission stage, by applying heat source, modifying temperature sensor parameters, etc., the interface temperature exceeds the over-temperature protection action value (customized by the electric vehicle manufacturer), and check whether the electric vehicle can reduce power output or stop charging.
Equipment composition
1. Equipment chassis
●The equipment chassis adopts sheet metal welding, surface painting, and computer gray and light blue, which is durable and beautiful. The panel is sandblasted and silk-screened with aluminum plate, which is generous and beautiful.
●There are heat dissipation holes on both sides of the equipment to facilitate heat dissipation inside the fuselage.
●There are movable casters at the bottom of the equipment for easy movement.
●The test gun seat is in the middle of the front of the equipment, which is convenient for inserting the test product gun head.
●There is a gun head at the rear end of the test gun seat to facilitate the input current test of the test gun head.
2. Heating system
●Consists of intelligent temperature controller + PLC + touch screen + thermocouple wire + heating rod, etc.
●Gun holder pin is independently developed and processed, and heating rod and thermocouple wire are embedded in the pin
●PLC automatically applies corresponding heating power, and heating automatically adjusts heating according to the temperature feedback from the temperature probe to reach the heating temperature with precise control.
●2 sets of heating system, 1 set for product D+ and D-
3. Touch screen control
●Adopt Taiwan Weilun 10-inch touch screen control
●Set heating time and heating temperature, 2 channels are set separately
●Data acquisition card records temperature, time and other parameters and curves in real time.
●Automatically generate test report after test completion.
4. DC gun holder and load cable
National standard DC gun holder, special processing, built-in heating function
There is a load cable connection line on the side of the device, the length of the line is 5 meters
5. Temperature measurement module
The thermocouple probe temperature of the cable assembly under test can be measured
The probe can be PT1000/NTC/PT100, etc.
6. Load current (user-provided)
Vehicle-side simulator (user-provided)
1. Power input: AC 220V 2. Control mode: PLC+touch screen+temperature controller 3. Heating mode: heating rod 4. DC gun holder: charging gun holder D+, D- are heated separately, 2-way heating system, 2-way temperature measurement system, precise temperature control. 5. Heating range: room temperature ~ 150 degrees can be set 6. Heating rate: ≥2℃/min 7. Heating temperature acquisition range: -40～200℃ 8. Heating temperature acquisition is PT100 thermocouple, 2-way independent acquisition 9. Heating temperature acquisition: resolution 0.1 degree, accuracy ≤±1 degree 10. Heating time: adjustable within the range of 0-999Min 11. Heating power can be adjusted automatically 12. When the heating temperature reaches the set value, there is a buzzer reminder function. 13. The heating gun holder is a national standard DC gun holder 14. Test station: 1 station DC 15. Data processing: temperature self-generated curve, with data storage and export functions, export Excel table data 16. With thermocouple line for collecting the tested product: PT1000, NTC signal, thermocouple data can be collected. Collection channels 16 channels, Collection range: -40～200℃ Collection accuracy: ≤0.1℃ 17. Equipped with 150 square cables for connecting loads, 3 meters long 18. Equipment size: about 800*900*1700mm high 19. Equipment weight: about 150kg