Test box for slurry test of charger

Abstract

The utility model relates to the technical field of slurry simulation tests of chargers, in particular to a test box for a slurry test of a charger, which comprises a test box body, a connection placement structure is arranged in the test box body, and the connection placement structure comprises a plurality of support columns arranged in the test box body. According to the utility model, through the arrangement of the connection placement structure, a plurality of charger samples to be tested can be tested at the same time; a plurality of connection transfer brackets, a direct-current low-voltage wire harness quick connector, a direct-current high-voltage load quick connector, an alternating-current high-voltage wire harness quick connector, a refrigerating fluid water inlet pipe quick connector and a refrigerating fluid water outlet pipe quick connector are arranged, so that the quick connection and disassembly with a tested sample can be facilitated; particularly, the sample can be quickly disassembled, the slurry on the sample can be washed, the operation of re-soaking or re-smearing the slurry and then re-connecting can be carried out, a connection error can be avoided, and the test efficiency and the test safety are effectively improved.

Description

Technical Field

[0001] The utility model relates to a charger test box, in particular to a test box for charger mud test, belonging to the technical field of charger mud simulation test. Background Art

[0002] When conducting mud simulation tests on electric vehicle chargers, simulation tests need to be carried out under different environments such as high temperature (such as 80 degrees) and normal temperature 25 degrees. One test under different environmental conditions is one cycle (usually taking dozens of hours). After one cycle, the mud on the sample needs to be cleaned and re-applied with mud to continue the next cycle of testing. The entire test takes at least several days to complete. The current common practice in laboratories is to use test chambers to achieve different environmental conditions. In addition, since the mud simulation test also requires the charger sample to be charged and fully loaded, the full load operation of the charger requires an external three-phase AC power supply and load, DC high-voltage load, DC low-voltage control power supply, chiller and other peripheral equipment. At the same time, it is also necessary to measure the temperature changes of the tested sample during the entire test process, so a temperature recorder is also required.

[0003] However, all these peripheral devices and temperature recorders can only be placed outside the test chamber. The connection with the charger sample needs to be introduced through the opening on the side of the test chamber. Considering the need for sealing and heat preservation, the opening on the side of the test chamber is usually small in size. Therefore, the opening cannot accommodate the refrigerant hoses of multiple samples under test at the same time. When two or more samples need to be tested simultaneously, the samples need to be internally interconnected through hoses. However, due to the partition structure of the existing test chamber, the interconnecting hoses need to cross the partition in the medium temperature chamber and are easy to bend. During the test, the hydraulic refrigerant cannot flow smoothly, causing the hoses to be compressed and damaged or causing the chiller to malfunction. In particular, when the mud of the tested sample needs to be cleaned and re-immersed or re-applied with mud after a test cycle, the various wiring harnesses and refrigerant hoses make it very difficult to take out the sample for operation, and the assistance of other personnel is required, which is very inefficient. Otherwise, if one sample is tested at a time, the test cycle will be very long and the test cost will be very high.

[0004] Therefore, there is an urgent need to improve a test box for charger mud testing to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a test box for charger mud testing, which can test multiple charger samples at the same time through the setting of a connection placement structure, and the multiple connection transfer brackets set together with the DC low-voltage wire harness quick connector, DC high-voltage load quick connector, AC high-voltage wire harness quick connector and refrigerant water inlet pipe quick connector can facilitate rapid connection and disassembly with the tested samples, especially the rapid disassembly of the samples and the washing of the mud on the samples, as well as the re-immersion or smearing of the samples and the reconnection without connection errors, effectively improving the efficiency and safety of the test.

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:

[0007] A test box for charger mud testing includes a test box body, wherein a connection placement structure is provided inside the test box body, wherein the connection placement structure includes a plurality of support columns arranged inside the test box body, and a placement plate is fixedly installed between two opposing support columns. A plurality of connection transfer brackets are fixedly installed on one side of the test box body, and a DC low-voltage wiring harness quick connector is fixedly installed on the connection transfer bracket. A DC high-voltage load quick connector, an AC high-voltage wiring harness quick connector, a refrigerant inlet pipe quick connector and a refrigerant outlet pipe quick connector are sequentially provided on one side of the DC low-voltage wiring harness quick connector, which are installed on the connection transfer bracket.

[0008] Preferably, a slide groove is provided on the top of each of the plurality of support columns and the inner wall of the test box body, and a slider slidably connected to the slide groove is fixedly mounted on the bottom of each of the plurality of support columns.

[0009] Preferably, a mesh partition is fixedly installed on the placement board, and the interval between one end of the mesh partition and one end of the placement board is ten centimeters.

[0010] Preferably, a fixing seat is fixedly mounted on the refrigerant liquid water inlet pipe quick connector and the refrigerant liquid water outlet pipe quick connector, and a valve extending to the inside of the water inlet pipe and the water outlet pipe is movably mounted on the fixing seat.

[0011] Preferably, a wire clamp is fixedly installed on the surface of the placement plate, and the wire clamp is provided with a plurality of grooves adapted to the DC low-voltage wire harness quick connector, the DC high-voltage load quick connector and the AC high-voltage wire harness quick connector.

[0012] Preferably, a plurality of fixing blocks are fixedly mounted on the inner wall of the test box body, a spring is fixedly mounted inside the fixing block, and a clamping rod is fixedly mounted on one end of the spring.

[0013] Preferably, a clamping block that engages with the clamping rod is fixedly mounted on the supporting column located on one side of the connecting transfer bracket, and one end of the clamping rod is configured to be conical.

[0014] The utility model has at least the following beneficial effects:

[0015] By setting up the connection placement structure, multiple charger samples under test can be tested at the same time. Multiple placement plates stacked by supporting columns are set inside the test box body, so that multiple charger samples under test can be placed in the test box body at the same time for testing, and multiple connection transfer brackets are set together with DC low-voltage wire harness quick connectors, DC high-voltage load quick connectors, AC high-voltage wire harness quick connectors and refrigerant inlet pipe quick connectors, which correspond to the positions of the charger samples under test and can be quickly connected and disassembled with multiple charger samples under test, especially the samples can be quickly disassembled and the mud on the samples can be washed, and the samples can be re-soaked or smeared with mud and then reconnected without connection errors, which effectively improves the efficiency and safety of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the test box body of the present utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the connecting transfer bracket of the utility model;

[0020] Figure 4 This is a schematic diagram of the clamping rod structure of the present utility model.

[0021] In the figure, 1. Test chamber body; 2. Connection placement structure; 3. Support column; 4. Placement plate; 5. Connection transfer bracket; 6. DC low-voltage wire harness quick connector; 7. DC high-voltage load quick connector; 8. AC high-voltage wire harness quick connector; 9. Refrigerant inlet pipe quick connector; 10. Slide; 11. Slider; 12. Mesh partition; 13. Fixed seat; 14. Valve; 15. Wire clamp; 16. Fixed block; 17. Spring; 18. Clamping rod; 19. Clamping block; 20. Refrigerant outlet pipe quick connector. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] like Figure 1-Figure 4 As shown, this embodiment provides an embodiment of a test box for charger mud testing.

[0024] A test box for a charger mud test comprises a test box body 1, wherein a connection placement structure 2 is provided inside the test box body 1, the connection placement structure 2 comprises a plurality of support columns 3 arranged inside the test box body 1, a placement plate 4 is fixedly installed between two opposing support columns 3, a plurality of connection transfer brackets 5 are fixedly installed on one side of the test box body 1, a DC low-voltage wiring harness quick connector 6 is fixedly installed on the connection transfer bracket 5, and a DC high-voltage load quick connector 7, an AC high-voltage wiring harness quick connector 8 and a refrigerant water inlet pipe quick connector 9 installed on the connection transfer bracket 5 are sequentially provided on one side of the DC low-voltage wiring harness quick connector 6. By setting up the connection placement structure 2, multiple charger samples under test can be tested at the same time. Multiple placement plates 4 stacked by support columns 3 are set inside the test box body 1, so that multiple charger samples under test can be placed in the test box body 1 for testing at the same time, and multiple connection transfer brackets 5 are set together with DC low-voltage wire harness quick connector 6, DC high-voltage load quick connector 7, AC high-voltage wire harness quick connector 8, refrigerant liquid inlet pipe quick connector 9 and refrigerant liquid outlet pipe quick connector 20, which correspond to the positions of the charger samples under test and can be quickly connected and disassembled with multiple charger samples under test, especially the samples can be quickly disassembled and the mud on the samples can be washed and re-soaked or smeared with mud and then reconnected without connection errors, effectively improving the efficiency and safety of the test.

[0025] Slide grooves 10 are provided on the tops of multiple support columns 3 and the inner walls of the test chamber body 1. Sliders 11 slidably connected to the slide grooves 10 are fixedly installed on the bottoms of multiple support columns 3. A mesh partition 12 is fixedly installed on the placement plate 4. The interval between one end of the mesh partition 12 and one end of the placement plate 4 is ten centimeters. A fixing seat 13 is fixedly installed on the refrigerant inlet pipe quick connector 9 and the refrigerant outlet pipe quick connector 20. A valve 14 extending to the inside of the inlet pipe and the outlet pipe is movably installed on the fixing seat 13. By setting the slide 10 and the slider 11, the same number of support columns 3 can be built according to the number of samples to be tested at the same time, which is convenient for installing and connecting multiple placement plates 4 and for disassembling, thereby improving the simplicity and convenience of operation. The setting of the mesh partition 12 is conducive to the flow of air in the test box body 1. Even after placing the sample on the mesh partition 12, the air temperature in the test box body 1 can quickly reach a stable balance, thereby improving the accuracy of the test. In addition, a ten-centimeter gap is left between one end of the mesh partition 12 and one end of the placement plate 4, which is convenient for the tested sample to be connected with the DC low-voltage harness quick connector 6, the DC high-voltage load quick connector 7, and the AC high The wire harness quick connector 8 and the refrigerant inlet pipe quick connector 9 are seamlessly interconnected and disassembled. Through the setting of the fixing seat 13 and the valve 14, when the sample needs to be disassembled to clean the mud, the valve 14 of the refrigerant inlet pipe quick connector 9 on the water inlet pipe connected to the chiller is closed, and then the valve 14 on the refrigerant outlet pipe quick connector 20 is opened to discharge the refrigerant in the internal pipeline of the sample. Then, when the tested sample and the refrigerant inlet pipe quick connector 9 and the refrigerant outlet pipe quick connector 20 are disassembled, only a small amount of residual refrigerant will leak out, and a large amount of refrigerant will no longer leak into the interior of the test chamber body 1 to cause an impact, thereby improving the safety of the test.

[0026] A wire clamp 15 is fixedly installed on the surface of the placement plate 4, and a plurality of grooves are provided on the wire clamp 15 that are compatible with the DC low-voltage wire harness quick connector 6, the DC high-voltage load quick connector 7 and the AC high-voltage wire harness quick connector 8. A plurality of fixed blocks 16 are fixedly installed on the inner wall of the test box body 1, and a spring 17 is fixedly installed inside the fixed block 16. A clamping rod 18 is fixedly installed at one end of the spring 17. A clamping block 19 that engages with the clamping rod 18 is fixedly installed on the support column 3 located on one side of the connecting transfer bracket 5, and one end of the clamping rod 18 is set to be conical. Through the setting of the wire clamp 15, the DC low-voltage wiring harness quick connector 6, the DC high-voltage load quick connector 7 and the AC high-voltage wiring harness quick connector 8 can be fixed to prevent the DC low-voltage wiring harness quick connector 6, the DC high-voltage load quick connector 7 and the AC high-voltage wiring harness quick connector 8 from bending and being damaged. Through the setting of the fixing block 16, the spring 17, the clamping rod 18 and the clamping block 19, after multiple support columns 3 are installed and connected through the slide groove 10 and the slider 11, the clamping block 19 on the support column 3 on the side of the connecting transfer bracket 5 is inserted into the fixing block 16, and then the clamping rod 18 in the fixing block 16 is clamped in the inside of the clamping block 19 under the reset support of the spring 17. Under the clamping action of the clamping rod 18 and the clamping block 19, multiple stacked support columns 3 can be fixed to prevent loosening, displacement and falling off.

[0027] In this embodiment, if Figure 1-Figure 4 As shown, the working process of the test box for charger mud test provided in this embodiment is as follows:

[0028] A plurality of placement plates 4 stacked by support columns 3 are arranged inside the test box body 1, so that a plurality of charger samples to be tested can be placed in the test box body 1 for testing at the same time, and a plurality of connection transfer brackets 5 are arranged together with a DC low-voltage wire harness quick connector 6, a DC high-voltage load quick connector 7, an AC high-voltage wire harness quick connector 8 and a refrigerant inlet pipe quick connector 9, which correspond to the positions of the charger samples to be tested, and can be quickly connected and disassembled with a plurality of charger samples to be tested. When the sample needs to be disassembled to clean the mud, the valve 14 of the refrigerant inlet pipe quick connector 9 on the water inlet pipe connected to the chiller is closed, and then the valve 14 on the refrigerant outlet pipe quick connector 20 is opened to discharge the refrigerant in the internal pipeline of the sample. Then, when the tested sample and the refrigerant inlet pipe quick connector 9 and the refrigerant outlet pipe quick connector 20 are disassembled, only a small amount of residual refrigerant will leak out, and a large amount of refrigerant will no longer leak into the interior of the test box body 1 to cause an impact.

[0029] In summary, in this embodiment, according to a test box for charger mud testing of this embodiment, by setting the slide 10 and the slider 11, the same number of support columns 3 can be built according to the number of samples to be tested at the same time, which is convenient for installing and connecting multiple placement plates 4 and for disassembling, thereby improving the simplicity and convenience of operation. The setting of the mesh partition 12 is conducive to the flow of air in the test box body 1. Even after the sample is placed on the mesh partition 12, the air temperature in the test box body 1 can quickly reach a stable balance, thereby improving the accuracy of the test. A ten-centimeter gap is left between one end of the mesh partition 12 and one end of the placement plate 4, thereby facilitating barrier-free interconnection and disassembly between the sample to be tested and the DC low-voltage harness quick connector 6, the DC high-voltage load quick connector 7, the AC high-voltage harness quick connector 8 and the refrigerant inlet pipe quick connector 9. By setting the fixing seat 13 and the valve 14, when the sample needs to be disassembled to clean the mud, the valve 14 on the water inlet pipe connected to the chiller is closed, and then the valve 14 on the outlet pipe is opened to remove the sample. The refrigerant in the pipeline is released, and then when the tested sample and the refrigerant inlet pipe quick connector 9 are disassembled, only a small amount of residual refrigerant will leak out, and no large amount of refrigerant will leak into the interior of the test box body 1 to cause an impact, thereby improving the safety of the test. By setting the wire clamp 15, the DC low-voltage wire harness quick connector 6, the DC high-voltage load quick connector 7 and the AC high-voltage wire harness quick connector 8 can be fixed to prevent the DC low-voltage wire harness quick connector 6, the DC high-voltage load quick connector 7 and the AC high-voltage wire harness from being connected. The bundle quick connector 8 is bent and damaged. Through the setting of the fixing block 16, spring 17, clamping rod 18 and clamping block 19, after multiple support columns 3 are installed and connected through the slide groove 10 and the slider 11, the clamping block 19 on the support column 3 on the side of the connecting transfer bracket 5 is inserted into the fixing block 16, and then the clamping rod 18 in the fixing block 16 is clamped inside the clamping block 19 under the reset support of the spring 17. Under the clamping action of the clamping rod 18 and the clamping block 19, multiple stacked support columns 3 can be fixed to prevent loosening, displacement and falling off.

[0030] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term and should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0031] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0032] The above description shows and describes several preferred embodiments of the present invention. However, as previously mentioned, it should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the present invention as taught herein or through the techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.

Claims

1. A test box for a charger mud test, comprising a test box body (1), characterized in that: The test box body (1) is provided with a connection placement structure (2) inside, the connection placement structure (2) includes a plurality of support columns (3) provided inside the test box body (1), a placement plate (4) is fixedly installed between two opposing support columns (3), a plurality of connection transfer brackets (5) are fixedly installed on one side of the test box body (1), a DC low-voltage wiring harness quick connector (6) is fixedly installed on the connection transfer bracket (5), and a DC high-voltage load quick connector (7), an AC high-voltage wiring harness quick connector (8), a refrigerant inlet pipe quick connector (9), and a refrigerant outlet pipe quick connector (20) are sequentially provided on one side of the DC low-voltage wiring harness quick connector (6) installed on the connection transfer bracket (5).

2. The test box for charger mud test according to claim 1, characterized in that: Slide grooves (10) are provided on the tops of the plurality of support columns (3) and the inner wall of the test box body (1), and sliders (11) slidably connected to the slide grooves (10) are fixedly installed on the bottoms of the plurality of support columns (3).

3. The test box for charger mud test according to claim 1, characterized in that: A mesh partition (12) is fixedly mounted on the placement plate (4), and a distance between one end of the mesh partition (12) and one end of the placement plate (4) is ten centimeters.

4. The test box for charger mud testing according to claim 1, characterized in that: A fixing seat (13) is fixedly mounted on the refrigerant liquid water inlet pipe quick connector (9) and the refrigerant liquid water outlet pipe quick connector (20), and a valve (14) extending to the inside of the water inlet pipe and the water outlet pipe is movably mounted on the fixing seat (13).

5. The test box for charger mud test according to claim 1, characterized in that: A wire clamp (15) is fixedly mounted on the surface of the placement plate (4), and the wire clamp (15) is provided with a plurality of grooves adapted to the DC low-voltage wire harness quick connector (6), the DC high-voltage load quick connector (7), and the AC high-voltage wire harness quick connector (8).

6. The test box for charger mud test according to claim 1, characterized in that: A plurality of fixing blocks (16) are fixedly mounted on the inner wall of the test box body (1), a spring (17) is fixedly mounted inside the fixing block (16), and a clamping rod (18) is fixedly mounted on one end of the spring (17).

7. The test box for charger mud testing according to claim 6, characterized in that: A clamping block (19) that engages with the clamping rod (18) is fixedly mounted on the supporting column (3) located on one side of the connecting transfer bracket (5), and one end of the clamping rod (18) is configured to be conical.

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