Automobile charging gun test bench

Abstract

The utility model relates to the technical field of testing of automobile charging test equipment, in particular to an automobile charging gun test board. Comprising a detection table, a charging plug, a charging assembly and a detection assembly, the charging plug, the charging assembly and the detection assembly are all arranged on the detection table, the detection assembly comprises a base and a flip cover, the base and the flip cover are hinged to each other, and arc-shaped grooves are formed in the base and the flip cover and cover each other to form a detection channel. A concave-convex detection module is arranged in the detection channel, the charging assembly comprises a charging gun and a cable, the concave-convex detection module is used for detecting the state of the surface of an insulating layer of the cable when the charging gun performs voltage resistance and current resistance detection, and an eddy current detection module is further arranged in the detection channel. The eddy current detection module is used for detecting the state of the cable and the state of the interior of the joint of the charging gun and the cable; according to the invention, fault positions and fault reasons of the charging gun and the cable can be detected at the same time in the testing process.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile charging test equipment testing, in particular to an automobile charging gun testing platform. Background Art

[0002] With the continuous development and progress of society, new energy vehicles are widely optimistic about their prospects because of their smaller impact on the environment than traditional vehicles. In the process of using new energy vehicles, charging guns for charging new energy vehicles are particularly important. Therefore, after the charging gun is produced, it is necessary to conduct performance tests such as voltage resistance, current resistance, impedance and insulation on the charging gun.

[0003] The withstand voltage test, also known as the withstand voltage test or insulation resistance test, is mainly used to evaluate the insulation performance and withstand voltage capability of the charging gun under high voltage environment. During the test, a voltage higher than its rated voltage is applied to the charging gun to detect whether it will have electrical faults such as leakage and breakdown. This test is crucial to ensure that the charging gun can work safely and stably during the charging process.

[0004] The current resistance test evaluates the stability and reliability of the charging gun when it is subjected to rated current or higher current. During the test, the current changes in the actual charging process are simulated to detect the current fluctuations and instability of the charging gun during the charging process. This test helps to understand the performance of the charging gun under different current conditions and whether it can meet the charging needs of electric vehicles.

[0005] The existing charging gun test bench can only obtain the required withstand voltage value and withstand current value when testing the charging gun. However, it is impossible to know the working status of the charging gun and the cable connected to the charging gun under different voltages and currents during the testing process, and it is also impossible to detect the fault location and cause of the charging gun and the cable during the test. It can only be manually disassembled and analyzed after the test is completed, which wastes manpower and has low efficiency. Based on this, a car charging gun test bench is proposed. Utility Model Content

[0006] In order to solve the above problems existing in the prior art, the utility model provides a vehicle charging gun test bench.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A car charging gun test bench, comprising a test bench, a charging plug, a charging assembly and a test assembly, wherein the charging plug, the charging assembly and the test assembly are all arranged on the test bench, the test assembly comprises a base and a flap, the base and the flap are hinged to each other, arc grooves are formed on the base and the flap, and the arc grooves are overlapped to form a test channel, a concave-convex detection module is arranged in the test channel, the charging assembly comprises a charging gun and a cable, and the concave-convex detection module is used to detect the state of the surface of the cable insulation layer when the charging gun performs voltage and current resistance tests.

[0009] Furthermore, an eddy current detection module is also provided in the detection channel, and the eddy current detection module is used to detect the internal state of the cable and the connection between the charging gun and the cable.

[0010] Furthermore, it also includes a control device, and the charging component and the detection component are both electrically connected to the control device. The control device is used to adjust the test voltage and test current of the charging component, and the detection component is used to transmit the detection data to the control device.

[0011] Furthermore, the detection component and the charging plug each include two groups, the two groups of charging plugs are used for charging guns to be inserted and perform voltage resistance test and current resistance test respectively, the two groups of detection components are respectively arranged under the two charging plugs, and the two groups of detection components are respectively used to detect the status of the charging component during the voltage resistance test and the status of the charging component during the current resistance test.

[0012] Furthermore, it also includes a scanning component, which is electrically connected to the control device and is used to scan the information on the charging component and transmit the data to the control device.

[0013] Furthermore, it also includes a display, which is electrically connected to the control device and is used to display information stored in the control device.

[0014] The beneficial effects of the utility model are as follows: after the detection component is arranged on the detection table, a detection channel is formed in the middle after the base and the flip cover of the detection component are closed, and the concave-convex detection module in the detection channel is mainly used to detect the outer surface of the cable, thereby realizing high-precision imaging and detection of the surface features of the object, and can efficiently and accurately detect various concave-convex defects on the surface of the object, such as protrusions, shrinkages, spots, cracks, etc.; the state of the outer surface of the cable is detected by the concave-convex detection module. During the detection, if the voltage and current reach the set values, the cable and the connection part between the cable and the charging gun are normal, then it means that the charging component is a qualified product, otherwise it is a failed product. The state of the charging component is detected while the voltage and current resistance tests are being performed, thereby improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a front structural schematic diagram of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Explanation of the reference numerals: 1. Testing table; 21. Base; 22. Flip cover; 3. Charging gun; 4. Cable; 5. Scanning component; 6. Display. DETAILED DESCRIPTION

[0019] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0020] like Figure 1-2 As shown, a vehicle charging gun test bench of the utility model comprises a test bench 1, a charging plug, a charging assembly and a test assembly, wherein the charging plug, the charging assembly and the test assembly are all arranged on the test bench 1, the test assembly comprises a base 21 and a flip cover 22, the base 21 and the flip cover 22 are hinged to each other, arc grooves are provided on the base 21 and the flip cover 22 and they cover each other to form a test channel, a concave-convex test module is arranged in the test channel, the charging assembly comprises a charging gun 3 and a cable 4, and the concave-convex test module is used to detect the state of the surface of the insulation layer of the cable 4 when the charging gun 3 performs voltage and current resistance tests;

[0021] Since the existing charging gun 3 test bench can only obtain the required withstand voltage value and withstand current value when testing the charging gun 3, it is impossible to know the working status of the charging gun 3 and the cable 4 connected to the charging gun 3 under different voltages and currents during the testing process, and it is also impossible to detect the fault location and cause of the charging gun 3 and the cable 4 during the testing process. It can only be manually disassembled and analyzed after the test is completed, which wastes manpower and has low efficiency;

[0022] After the detection component is arranged on the detection platform 1, a detection channel is formed in the middle after the base 21 and the flip cover 22 of the detection component are closed. The detection channel is cylindrical, and the base 21 and the flip cover 22 can be closed and opened by manual operation, and can also be rotated and closed by a motor. During the detection, the cable 4 is placed in the detection channel, and the connection part between the cable 4 and the charging gun 3 is also in the detection channel. The concave-convex detection module in the detection channel is mainly used for detecting the outer surface of the detection cable 4. The concave-convex detection module focuses the light reflected or refracted by the convex or concave part of the detection object onto the image sensor, and through digital imaging technology and digital image processing technology, the pixel points on the image sensor are matched to the specific position on the object to be detected, thereby realizing high-precision detection of the surface features of the object. Through high-resolution imaging and detection, various concave-convex defects on the surface of objects, such as bulges, depressions, spots, cracks, etc., can be detected efficiently and accurately; when the charging gun 3 is plugged into the charging plug and the voltage or current is gradually increased, the insulation layer of the cable 4 may be broken down, resulting in the degradation of the electrical and mechanical properties of the insulation layer, and the insulation layer becomes brittle, hardened or cracked, and the connection between the cable 4 and the charging gun 3 may also be damaged. The state of the outer surface of the cable 4 can be detected by the concave-convex detection module. During the detection, if the voltage and current reach the set values, the cable 4 and the connection between the cable 4 and the charging gun 3 are normal, then the charging component is qualified, otherwise it is unqualified. The state of the charging component can be detected while the voltage and current resistance tests are being performed, thereby improving the detection efficiency.

[0023] At the same time, in order to facilitate testing, the installation position of the charging plug on the test bench can be adjusted according to the convenience of the test.

[0024] Furthermore, an eddy current detection module is also provided in the detection channel, and the eddy current detection module is used to detect the internal state of the cable 4 and the connection between the charging gun 3 and the cable 4; specifically, because the eddy current detection module can only detect the state of the cable 4 and the outer surface of the cable 4 and the charging gun 3 through the concave-convex detection module, and when a high-frequency alternating current passes through the excitation coil, an alternating magnetic field is generated around the coil. When this alternating magnetic field approaches the cable 4, eddy currents are generated on the surface and near the surface of the cable 4. By measuring the changes in these eddy currents, the internal state of the cable 4 can be indirectly inferred, such as whether there are defects such as cracks, corrosion, and damage; the state of the cable 4 and the connection between the cable 4 and the charging gun 3 during the voltage and current resistance tests can be further detected.

[0025] In one embodiment, a control device is further included, and the charging component and the detection component are both electrically connected to the control device, the control device is used to adjust the test voltage and test current of the charging component, and the detection component is used to transmit the detection data to the control device;

[0026] In order to ensure the safety of the test and obtain various data of the charging component under different voltage and current states, it is necessary to gradually increase the voltage and current through the control device instead of directly reaching the highest voltage and current of the test.

[0027] In one embodiment, the detection components and the charging plugs each include two groups, the two groups of charging plugs are used for the charging gun 3 to be inserted and respectively perform a withstand voltage test and a withstand current test, the two groups of detection components are respectively arranged under the two charging plugs, and the two groups of detection components are respectively used to detect the state of the charging component during the withstand voltage test and the state of the charging component during the withstand current test;

[0028] Since the voltage resistance test and the current resistance test focus on the performance and safety of the charging gun 3 in different aspects, the test methods and test standards are also different. Therefore, it is necessary to set up two groups of detection components on the test bench 1 at the same time, and two groups of charging plugs are also set. When the charging components are tested, the voltage resistance test is first performed and then the current resistance test is performed, or vice versa. When the charging components are subjected to the voltage resistance test or the current resistance test, the detection components at the corresponding positions respectively monitor and detect the status of the tested charging components.

[0029] Furthermore, it also includes a scanning component 5, which is electrically connected to the control device. The scanning component 5 is used to scan the information on the charging component and transmit the data to the control device. In order to quickly record the detection results of the charging components one by one, each charging component is affixed with a QR code or other information that can be scanned. Before the detection, the information is first scanned and recorded by the scanning component 5, and the data generated by the subsequent detection can be automatically recorded.

[0030] Furthermore, it also includes a display 6, which is electrically connected to the control device. The display 6 is used to display the information stored in the control device. After the scanning component 5 scans the charging component, the information can be uploaded to the control device and displayed through the display 6.

[0031] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A car charging gun test bench, characterized by: It includes a testing platform, a charging plug, a charging component and a testing component, which are all arranged on the testing platform. The testing component includes a base and a flip cover, which are hinged to each other. The base and the flip cover are both provided with arc grooves and cover each other to form a testing channel. A concave-convex detection module is arranged in the testing channel. The charging component includes a charging gun and a cable, and the concave-convex detection module is used to detect the state of the surface of the cable insulation layer when the charging gun performs voltage and current resistance tests.

2. The vehicle charging gun test bench according to claim 1, characterized in that: An eddy current detection module is also provided in the detection channel, and the eddy current detection module is used to detect the internal state of the cable and the connection between the charging gun and the cable.

3. The vehicle charging gun test bench according to claim 2, characterized in that: It also includes a control device, and the charging component and the detection component are both electrically connected to the control device. The control device is used to adjust the test voltage and test current of the charging component, and the detection component is used to transmit the detection data to the control device.

4. The vehicle charging gun test bench according to claim 3, characterized in that: The detection component and the charging plug each include two groups. The two groups of charging plugs are used for inserting the charging gun and performing a voltage resistance test and a current resistance test respectively. The two groups of detection components are respectively arranged under the two charging plugs. The two groups of detection components are respectively used to detect the status of the charging component during the voltage resistance test and the status of the charging component during the current resistance test.

5. The vehicle charging gun test bench according to claim 3, characterized in that: It also includes a scanning component, which is electrically connected to the control device and is used to scan the information on the charging component and transmit the data to the control device.

6. The vehicle charging gun test bench according to claim 5, characterized in that: It also includes a display, which is electrically connected to the control device and is used to display information stored in the control device.

Images