Analog module load liquid cooling plate airtight tooling

Abstract

The utility model relates to liquid cooling plate airtightness detection technical field especially relates to a kind of simulation module load liquid cooling plate airtightness tool, including operation platform, the top side wide edge of operation platform is fixedly installed with multiple positioning blocks, the top side long edge of operation platform is fixedly installed with multiple limit blocks and side push air cylinder respectively, and the piston rod end of side push air cylinder is fixedly installed with clamping block, the top of operation platform is provided with multiple groups of mounting bracket, multiple pressure cylinders are installed on mounting bracket, and the piston rod end of pressure cylinder is fixedly installed with pressing plate;The utility model is simulated module load weight by pressure cylinder down pressure, cooperate and be adjusted position by mounting bracket and work type block of slide rail, slide groove, and further adapt the adjustment detection of different load point, so that the airtight state of liquid cooling plate is accurately detected before battery pack assembly module, effectively solve the problem that liquid cooling plate airtightness is unqualified after previous module assembly, need to be returned to factory maintenance or cause battery pack to be scrapped.

Description

Technical Field

[0001] This utility model relates to the field of liquid-cooled plate airtightness testing technology, and in particular to a simulated module load liquid-cooled plate airtightness tooling. Background Technology

[0002] The liquid cooling plate of the battery box is a core thermal management component inside the new energy power battery box. Its core function is to efficiently absorb or dissipate the heat generated by the power battery during charging and discharging through the internal circulating coolant. At the same time, it can assist in preheating the battery in low-temperature environments to keep the battery always operating within a suitable temperature range, ensuring battery performance, lifespan and safety. It is usually adapted and integrated with the battery box structure, has a certain degree of sealing and structural strength, and must meet the operating conditions requirements of the power battery system such as temperature resistance, pressure resistance and vibration resistance.

[0003] In the production and assembly process of new energy power battery boxes, the airtightness of the liquid cooling plate is a key indicator to ensure the safe and stable operation of the battery pack. The industry usually conducts airtightness testing of liquid cooling plates in two steps: first, the airtightness value of the liquid cooling plate is tested by the airtightness tester before leaving the factory; second, the airtightness value of the liquid cooling plate is retested by the customer before the battery pack is assembled. The test results at this stage are mostly qualified.

[0004] After the battery pack completes module assembly and the module weight is loaded onto the liquid cooling plate, a problem often occurs when the liquid cooling plate is tested for air tightness again, resulting in a failure to meet the air tightness standard. If the air tightness leak point is located on the outside of the casing, the battery pack can be returned to the factory for repair. However, if the air tightness leak point is located on the inside of the casing, it cannot be returned for repair, and the entire battery pack will be scrapped. It is evident that the current testing process does not consider the impact of module load on the air tightness of the liquid cooling plate and lacks effective air tightness testing of the liquid cooling plate under simulated module load conditions. This makes it impossible to detect air tightness problems that may occur after module assembly in advance. Therefore, a solution is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a simulated module load liquid cooling plate airtight tooling to solve the above-mentioned technical defects.

[0006] The following technical solution is used to achieve the following: A simulated module load liquid cooling plate airtight tooling includes an operating table. Multiple positioning blocks are fixedly installed on the wide side of the top of the operating table. Multiple limiting blocks and side-push cylinders are fixedly installed on the long sides of the top of the operating table, and a clamping block is fixedly installed at the piston rod end of the side-push cylinder. Multiple sets of mounting brackets are provided on the top of the operating table. Multiple pressure cylinders are installed on the mounting brackets, and a pressure plate is fixedly installed at the piston rod end of the pressure cylinder.

[0007] Preferably, the mounting frame has a U-shaped structure, and the vertical section of the mounting frame has a T-shaped cross-section. The top two sides of the operating table are equipped with slide rails that are slidably connected to the mounting frame.

[0008] Preferably, a sliding groove is provided on the transverse section of the mounting bracket, and an I-shaped block is slidably connected in the sliding groove, and the pressure cylinder is fixedly installed with the corresponding I-shaped block.

[0009] Preferably, the mounting bracket has mounting cavities at its bottom and on one side of the I-shaped block. A movable pin is fixedly connected to the mounting cavity by a spring and slidably connected thereto. The end of the movable pin has a hemispherical structure. Several grooves are equally spaced on the bottom of the slide rail and on the inner wall of the slide groove.

[0010] Preferably, the top of the operating table is fixedly equipped with a side-push rotary valve for controlling the movement of the piston rod of the side-push cylinder and a pressure rotary valve for controlling the movement of the piston rod of the pressure cylinder.

[0011] Preferably, a support frame is fixedly connected to the bottom of the operating table, and the side-push rotary valve and the pressure rotary valve are both located on the outside of the two sets of slide rails.

[0012] The beneficial effects of this utility model are as follows:

[0013] This invention uses positioning blocks, limiting blocks, and side-push cylinders on the operating table to first position and fix the liquid cooling plate. Then, pressure cylinders are used to simulate the load weight of the module. With the help of mounting brackets and I-shaped blocks whose positions can be adjusted via slide rails and grooves, it can be adapted to the adjustment and testing of different load points. This allows for accurate testing of the airtightness of the liquid cooling plate before the battery pack is assembled into a module. This effectively solves the problem of unqualified airtightness of the liquid cooling plate after module assembly, which required returning to the factory for repair or caused the battery pack to be scrapped, thus reducing production costs and loss risks. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings;

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a structural diagram of the liquid cooling plate of the fixed box in this utility model;

[0017] Figure 3 This is a disassembled schematic diagram of the mounting bracket, I-shaped block, and slide rail of this utility model;

[0018] Figure 4 This is a schematic diagram of the installation and assembly of the mounting bracket and slide rail of this utility model;

[0019] Figure 5 This is a schematic diagram of the installation and assembly of the mounting bracket and the I-shaped block of this utility model;

[0020] Figure 6 This is a schematic diagram of the liquid cooling plate of the box body of this utility model.

[0021] Legend:

[0022] 1. Control panel; 11. Positioning block; 12. Limiting block; 13. Side-push cylinder; 14. Clamping block; 15. Slide rail; 16. Side-push rotary valve; 17. Pressure rotary valve;

[0023] 2. Mounting bracket; 21. Pressure cylinder; 22. Pressure plate; 23. I-shaped block; 24. Spring; 25. Movable pin; 26. Groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: Please refer to Figures 1-6 As shown, the lack of effective airtightness testing of liquid cooling plates under simulated module load conditions in the existing technology, which makes it impossible to detect airtightness problems that may occur after module assembly in advance, can be solved by the following solution;

[0026] This embodiment of a simulated module load liquid cooling plate airtight fixture includes an operating table 1. Multiple positioning blocks 11 are fixedly installed on the wide side of the top of the operating table 1. The liquid cooling plate is placed on the top of the operating table 1 and pushed to abut against the positioning block 11 to achieve initial positioning. Multiple limiting blocks 12 and side push cylinders 13 are fixedly installed on the long sides of the top of the operating table 1, respectively. A clamping block 14 is fixedly installed at the piston rod end of the side push cylinder 13. The piston rod of the side push cylinder 13 extends out, causing the clamping block 14 to abut against one long side of the liquid cooling plate and move it, causing the other long side of the liquid cooling plate to abut against the limiting block 12, thereby performing secondary positioning and fixing of the liquid cooling plate.

[0027] The top of the control panel 1 is equipped with multiple mounting brackets 2, and multiple pressure cylinders 21 are mounted on the mounting brackets 2. The piston rod end of the pressure cylinder 21 is fixedly mounted with a pressure plate 22. By controlling the piston rod of the pressure cylinder 21 to extend, the corresponding pressure plate 22 is pressed against the top of the liquid cooling plate of the box. The downward pressure of the multiple pressure cylinders 21 simulates the load weight of the module installed on the liquid cooling plate of the box. The air tightness tester is connected to the water nozzle on the liquid cooling plate of the box through an air pipe to simulate the module load state and perform effective air tightness test on the liquid cooling plate.

[0028] The mounting bracket 2 has a U-shaped structure, and the vertical section of the mounting bracket 2 has a T-shaped cross-section. The top two sides of the operating table 1 are equipped with slide rails 15 that are slidably connected to the mounting bracket 2. The U-shaped structure of the mounting bracket 2 and the T-shaped cross-section of its vertical section, combined with the matching slide rails 15, are used to limit the vertical direction of the two sides of the mounting bracket 2 when the piston rod of the pressure cylinder 21 extends, so as to avoid slight displacement of the mounting bracket 2 and improve the stability of the simulated load weight of the downward pressure value. By pushing the mounting bracket 2 to move horizontally on the slide rail 15, the position of the pressure cylinder 21 in the length direction of the slide rail 15 can be adjusted.

[0029] The mounting bracket 2 has a sliding groove on its transverse section, and an I-shaped block 23 is slidably connected in the sliding groove. The pressure cylinder 21 is fixedly installed with the corresponding I-shaped block 23. By pushing the pressure cylinder 21 to carry the I-shaped block 23 to move horizontally in the sliding groove, the position of the pressure cylinder 21 in the length direction of the mounting bracket 2 can be adjusted. Combined with the horizontal movement of the mounting bracket 2, it can be adapted to the adjustment and detection of different load points, so as to accurately detect the airtightness of the liquid cooling plate before the battery pack is assembled into a module, and further ensure the accuracy of the test results.

[0030] Mounting bracket 2 has mounting cavities at its bottom and on one side of I-shaped block 23. A movable pin 25 is fixedly connected to the mounting cavity by spring 24 and slidably connected thereto. The end of the movable pin 25 is hemispherical. Several grooves 26 are equally spaced at the bottom of slide rail 15 and on the inner wall of slide groove.

[0031] During the movement of the mounting bracket 2 and the I-shaped block 23, the spring 24 and movable pin 25 on the mounting bracket 2 cooperate with the multiple grooves 26 on the slide rail 15 to help limit the stopping position of the mounting bracket 2 when the applied external force is removed. The spring 24 and movable pin 25 on the I-shaped block 23 cooperate with the multiple grooves 26 on the inner wall of the slide rail to help limit the stopping position of the horizontal movement of the pressure cylinder 21 when the applied external force is removed, thereby ensuring the accurate position before applying downward pressure.

[0032] The top of the control panel 1 is fixedly equipped with a side-push rotary valve 16 for controlling the movement of the piston rod of the side-push cylinder 13, and a pressure rotary valve 17 for controlling the movement of the piston rod of the pressure cylinder 21. Opening or closing the side-push rotary valve 16 controls the extension or retraction of the piston rod of the side-push cylinder 13, and opening or closing the pressure rotary valve 17 controls the extension or retraction of the piston rod of the pressure cylinder 21.

[0033] The bottom of the control panel 1 is fixedly connected to a support frame. The side-push rotary valve 16 and the pressure rotary valve 17 are both located on the outside of the two sets of slide rails 15, so as to avoid inconvenience to opening or closing the side-push rotary valve 16 and the pressure rotary valve 17 when the mounting frame 2 moves to a certain position.

[0034] The working process and principle of this utility model are as follows:

[0035] The present invention involves placing the liquid cooling plate of the box body on the top of the operating table 1 and pushing one of its wide sides to abut against the positioning block 11 on the operating table 1. First, the side push rotary valve 16 is opened to control the piston rod of the side push cylinder 13 to extend, causing the clamping block 14 to abut against one of the long sides of the liquid cooling plate of the box body and move it, causing the other long side of the liquid cooling plate of the box body to abut against the limiting block 12, thereby positioning and fixing the liquid cooling plate of the box body.

[0036] Open the pressure rotary valve 17 to control the piston rod of the pressure cylinder 21 to extend, causing the pressure plate 22 to press against the top of the liquid cooling plate of the box. The downward pressure of the pressure cylinder 21 simulates the load weight of the module installed on the liquid cooling plate of the box. The air tightness tester is connected to the water nozzle on the liquid cooling plate of the box through the air pipe and the air tightness test is performed. After the test is completed, the pressure rotary valve 17 and the side push rotary valve 16 are closed in sequence, and the liquid cooling plate of the box is removed from the operating table 1.

[0037] For the replacement test of different load points on the top of the liquid cooling plate of the enclosure, the mounting bracket 2 is pushed to move horizontally on the slide rail 15. With the help of the spring 24 and movable pin 25 on the mounting bracket 2 and the cooperation of multiple grooves 26 on the slide rail 15, the stopping position of the mounting bracket 2 is limited when the external force is removed. The pressure cylinder 21 is pushed to move horizontally in the slide groove. With the help of the spring 24 and movable pin 25 on the I-shaped block 23 and the cooperation of multiple grooves 26 on the inner wall of the slide groove, the stopping position of the horizontal movement of the pressure cylinder 21 is limited when the external force is removed. Thus, the replacement of different load points is completed. Then, the airtightness test is performed to further ensure the accuracy of the test results.

[0038] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A simulated module load liquid-cooled plate airtight fixture, comprising an operating table (1), characterized in that, Multiple positioning blocks (11) are fixedly installed on the wide side of the top of the operating table (1). Multiple limiting blocks (12) and side-push cylinders (13) are fixedly installed on the long sides of the top of the operating table (1). A clamping block (14) is fixedly installed at the piston rod end of the side-push cylinder (13). Multiple sets of mounting brackets (2) are provided on the top of the operating table (1). Multiple pressure cylinders (21) are installed on the mounting brackets (2). A pressure plate (22) is fixedly installed at the piston rod end of the pressure cylinder (21).

2. The airtight fixture for simulating a module load liquid-cooled plate according to claim 1, characterized in that, The mounting bracket (2) has a U-shaped structure, and the vertical section of the mounting bracket (2) has a T-shaped cross-section. The top two sides of the operating table (1) are equipped with slide rails (15) that are slidably connected to the mounting bracket (2).

3. The simulated module load liquid-cooled plate airtight fixture according to claim 2, characterized in that, The mounting bracket (2) has a sliding groove on its transverse section, and an I-shaped block (23) is slidably connected in the sliding groove. The pressure cylinder (21) is fixedly installed with the corresponding I-shaped block (23).

4. The airtight fixture for simulating a module load liquid-cooled plate according to claim 3, characterized in that, The mounting bracket (2) has mounting cavities at its bottom and on one side of the I-shaped block (23). A movable pin (25) is fixedly connected to the mounting cavity by a spring (24) and is slidably connected to it. The end of the movable pin (25) is hemispherical. Several grooves (26) are equally spaced on the bottom of the slide rail (15) and the inner wall of the slide groove.

5. The airtight fixture for simulating a module load liquid-cooled plate according to claim 2, characterized in that, The top of the control panel (1) is fixedly equipped with a side-push rotary valve (16) for controlling the movement of the piston rod of the side-push cylinder (13) and a pressure rotary valve (17) for controlling the movement of the piston rod of the pressure cylinder (21).

6. The airtight fixture for simulating a module load liquid-cooled plate according to claim 5, characterized in that, The bottom of the operating table (1) is fixedly connected to a support frame, and the side-push rotary valve (16) and the pressure rotary valve (17) are both located on the outside of the two sets of slide rails (15).

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