A durability testing device for a connection device used in conductive charging of new energy vehicles

Abstract

This utility model relates to the field of connection device testing, and discloses a durability testing device for a connection device used in conductive charging of new energy vehicles. The device includes a cabinet, a workbench inside the cabinet, a control unit, a multi-joint robot, and a vehicle socket fixing device on the workbench. The control unit is connected to the multi-joint robot. A host computer is located on the side of the cabinet and is connected to the control unit. The multi-joint robot is equipped with a vehicle plug mechanical lock pressing device and a vehicle plug clamp. This utility model allows the multi-joint robot to perform plug-in / plug-out tests on the connection device used in conductive charging of new energy vehicles through program instructions. After the cycle, the power supply plug or vehicle plug is immersed in simulated solutions of acid rain, salt water, and turbid water. The immersion time is adjustable, and the device is removed, allowed to stand for a period of time, and then re-plugged and unplugged in a cycle to test the service life of the connection device, thereby verifying the reliability of the connection device.

Description

Technical Field

[0001] This utility model relates to the field of connection device testing, specifically to a durability testing device for a connection device used in conductive charging of new energy vehicles. Background Technology

[0002] The conductive charging connection device for new energy vehicles is a critical component connecting the vehicle body to external charging equipment, impacting the safety, charging efficiency, and standardization of electric vehicles. Therefore, this connection device must possess reliability, safety, and durability, and must meet relevant standards or harsh environment tests. Furthermore, the lifespan of this connection device not only affects charging safety and reliability but is also closely related to maintenance costs and the device's environmental adaptability. Traditional testing equipment can test lifespan, but it still has several drawbacks:

[0003] 1) Human operation cannot be automated: The continuity of human operation cannot be guaranteed.

[0004] 2) Inconsistent insertion and removal: Because human actions cannot be quantitatively calculated and are random, the direction of force during each insertion and removal is inconsistent, and repeated insertion and removal tests will have deviations.

[0005] 3) Safety cannot be guaranteed: Because of the manual insertion and removal of the device, the personal safety of the test personnel cannot be guaranteed, and the need to immerse in liquid poses a potential safety hazard to personnel. Utility Model Content

[0006] The technical problem this invention aims to solve is that existing testing equipment for charging connection devices suffers from deviations and inaccurate testing.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is to provide a durability testing device for a connection device for conductive charging of new energy vehicles, including a cabinet, a workbench inside the cabinet, a control unit, a multi-joint robot and a vehicle socket fixing device on the workbench, the control unit being connected to the multi-joint robot, a host computer being provided on the side of the cabinet and connected to the control unit, and a vehicle plug mechanical lock pressing device and a vehicle plug clamp being provided on the multi-joint robot.

[0008] Optionally, the cabinet may also be equipped with a power supply unit, which is connected to the host computer, the control unit and the multi-joint robot.

[0009] Optionally, a contaminant solution chamber is provided next to the multi-jointed robot inside the cabinet.

[0010] Optionally, the host computer includes a display unit, an industrial control computer, and a communication unit.

[0011] Optionally, the multi-joint robot includes a mechanical structure system, a robot control system, a sensing system, and a human-machine interaction system, wherein the human-machine interaction system is connected to a host computer via Ethernet communication.

[0012] In summary, this utility model's durability testing device for conductive charging connectors in new energy vehicles can control a multi-joint robot to conduct plug-in / plug-out tests on these connectors via program instructions. Users can set the number of plug-in / plug-out cycles and, after each cycle, immerse the power plug or vehicle plug in simulated solutions of acid rain, salt water, or turbid water. The immersion time is adjustable, and the connector is removed, allowed to stand for a period, and then re-plugged and unplugged in the cycle to test its lifespan. This verifies the connector's reliability, superior performance, and ease of operation, improving the efficiency of lifespan testing for conductive charging connectors in electric vehicles and expanding the testing scenarios and application scope. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the durability testing device for the conductive charging connection device of new energy vehicles according to this utility model.

[0014] Figure 2 This is a schematic diagram of the multi-joint robot structure in the durability testing device for the conductive charging connection device of new energy vehicles according to this utility model.

[0015] Figure 3 This is a flowchart of the durability testing device for the conductive charging connection device of new energy vehicles according to this utility model.

[0016] In the diagram: 1. Host computer; 3. Control unit; 4. Multi-joint robot; 5. Vehicle plug mechanical lock pressing device; 6. Vehicle plug clamp; 7. Vehicle socket fixing device; 8. Contaminant solution tank. Detailed Implementation

[0017] The following combination Figure 1-3 The present invention will be described in further detail below.

[0018] This utility model discloses a durability testing device for a conductive charging connection device for new energy vehicles, referring to... Figure 1 and Figure 2 The system includes a cabinet, a workbench inside the cabinet, a control unit 3, a multi-joint robot 4 and a vehicle socket fixing device 7 on the workbench, the control unit is connected to the multi-joint robot 4, a host computer 1 is located on the side of the cabinet, the host computer 1 includes a display unit, an industrial control computer and a communication unit, the host computer 1 is connected to the control unit 3, and the multi-joint robot 4 is equipped with a vehicle plug mechanical lock pressing device 5 and a vehicle plug clamp 6.

[0019] The cabinet also houses a power supply unit, which is an external single-phase AC power supply. The power supply unit is connected to and supplies power to the host computer 1, control unit 3, vehicle plug mechanical lock pressing device 5, and multi-joint robot 4. The multi-joint robot 4 includes a mechanical structure system, a robot control system, a sensing system, and a human-machine interaction system. The multi-joint robot 4 is connected to the host computer 1 through the network port communication in the human-machine interaction system. It sends control commands to the robot control system through the human-machine interaction system to perform positioning and adjustment of the mechanical mechanism system, and feeds back information such as position, speed, and torque through the sensing system. According to the actual test conditions, the corresponding test program is compiled by the industrial control computer, and the operation commands are issued to the multi-joint robot through the communication unit to execute the durability test of the connection device.

[0020] The size of the mounting holes of the vehicle socket fixing device 7 can be adjusted as needed, so as to install connection devices of different sizes such as national standard AC connection devices, national standard DC connection devices, and European standard connection devices, to realize life test of various objects and broaden the application scenarios of the test device.

[0021] The vehicle plug mechanical lock pressing device 5 includes an air pump, an air pressure regulating valve, and an air pressure actuator. When the connector is inserted, it can simulate pressing the mechanical lock button of the charging gun, and when it is pulled out, it can simulate not pressing the button. The vehicle plug clamp 6 and the vehicle socket fixing device 7 can be fixed by changing the mold according to the size of the object being tested.

[0022] In a further embodiment, the multi-joint robot 4 inside the cabinet is provided with a pollutant solution tank 8 for placing pollutant simulation solutions, including simulated solutions of acid rain, salt water, and turbid water.

[0023] Reference Figure 3 The operating steps of this utility model are as follows:

[0024] S1. Install the vehicle socket and vehicle plug onto the vehicle socket fixing device 7 on the workbench and the vehicle plug clamp 6 on the tool end of the multi-joint robot 4, respectively. Adjust the mechanical structure of the multi-joint robot 4 and use the cylinder on the tool end of the multi-joint robot 4 to drive the vehicle plug to move so that it can be inserted into the vehicle socket.

[0025] S2. The host computer 1 sets parameters such as the number of insertion and removal cycles, insertion and removal force value, insertion and removal test time and pollutant exposure of the connection device for conductive charging of new energy vehicles. After confirming that the parameters are correct, click the start button.

[0026] S3 and control unit 3 control the multi-joint robot 4 to perform insertion and extraction force and durability tests according to the parameters set on the host computer 1, and provide feedback information from the sensor system.

[0027] The vehicle plug mechanical lock pressing device 5 can simulate pressing the mechanical lock button of the charging gun when the vehicle plug is inserted into the vehicle socket, and simulate not pressing the button after it is pulled out.

[0028] S4. According to the pollutant exposure test requirements, move the vehicle plug clamp 6 above the pollutant solution chamber 8, immerse the plug in the acid rain simulation solution, salt water simulation solution and turbid water simulation solution respectively. The immersion time is adjustable. Then return to the original position and wait for the next operation instruction.

[0029] S5. After completing the pollutant exposure test, remove the vehicle and let it stand for a period of time (the time can be adjusted). Then move the vehicle plug clamp 6 to the plug-out position and continue the plug-out test cycle.

[0030] S6. Complete the durability test of the connection device for conductive charging of new energy vehicles according to the above steps, and display the results of the number of insertion and removal cycles and the number of times contaminants are immersed on the host computer 1.

[0031] This utility model relates to a durability testing device for a conductive charging connection device for new energy vehicles. It can control a multi-joint robot to conduct plug-in and unplug tests on the connection device through program instructions. Users can set the number of plug-in and unplug cycles and immerse the power plug or vehicle plug in simulated solutions of acid rain, salt water, and turbid water after the cycle to test the service life of the connection device and thus verify its reliability.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A new energy vehicle conductive charging connection device durability test device, characterized in that, The cabinet includes a workbench inside, on which a control unit (3), a multi-joint robot (4), and a vehicle socket fixing device (7) are provided. The control unit is connected to the multi-joint robot (4). A host computer (1) is provided on the side of the cabinet and is connected to the control unit (3). The multi-joint robot (4) is equipped with a vehicle plug mechanical lock pressing device (5) and a vehicle plug clamp (6). 2.The device according to claim 1, characterized in that, The cabinet is also equipped with a power supply unit, which is connected to the host computer (1), the control unit (3) and the multi-joint robot (4). 3.The device according to claim 1, characterized in that, The multi-joint robot (4) inside the cabinet is equipped with a contaminant solution tank (8) next to it.

4. The device according to claim 1, wherein, The host computer (1) includes a display unit, an industrial control computer, and a communication unit.

5. The new energy vehicle conductive charging connection device durability test device according to claim 4, characterized in that, The multi-joint robot (4) includes a mechanical structure system, a robot control system, a sensing system and a human-machine interaction system. The human-machine interaction system is connected to the host computer (1) via network port communication.

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