Testing equipment for airtight blasting pressure-resistant comprehensive test of liquid cooling plate

Abstract

The utility model relates to a liquid cooling plate airtight blasting pressure-resistant comprehensive test device, which comprises a test bed area, a control system area, an execution element area and a bottom frame, is provided with the test bed area, the control system area and the execution element area, integrates airtight, blasting and pressure-resistant performance test functions into a whole, has multiple functions, and is convenient to use. The air tightness detection of the equipment can be dry detection and wet detection, the wet detection has automatic water injection and drainage functions, and the lifting platform is arranged, so that the automatic water immersion detection function can be realized. The problems that multiple single-function devices occupy a large space, the device cost is high, multiple times of transfer are needed in the testing process, and testing work is not facilitated are solved.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle battery technology, and in particular to a comprehensive test equipment for airtight burst pressure resistance of liquid-cooled plates. Background Technology

[0002] New energy vehicle battery modules typically consist of a liquid cooling plate and the battery module body. The liquid cooling plate is used to dissipate heat and cool the module body. Based on the application environment and functional requirements, the liquid cooling plate must have good pressure resistance, temperature resistance, corrosion resistance, and leak-proof properties. Necessary tests must be conducted on liquid cooling plate products during both the design and mass production stages.

[0003] The airtightness, burst strength, and pressure resistance of liquid cooling plates are important indicators for evaluating their reliable operation in the thermal management system of new energy vehicles. They can effectively assess the sealing performance, burst strength, and pressure resistance of liquid cooling plates, thereby ensuring their safety and reliability in actual use.

[0004] In existing technologies, the airtightness, burst pressure, and withstand pressure tests of liquid-cooled plates are all conducted separately. The testing equipment is mostly single-function and requires a large space, is expensive, and necessitates multiple transfers, which is inconvenient. In particular, the wet airtightness test method typically involves manually placing the liquid-cooled plate into a simple water tank or pool, immersing the product in water for testing, and then manually removing it afterward, which is also inconvenient. Therefore, the industry urgently needs to develop a multi-functional integrated testing device that combines airtightness, burst pressure, and withstand pressure testing. Utility Model Content

[0005] The purpose of this utility model is to provide a comprehensive testing equipment for airtightness, bursting, and pressure resistance, which solves the problems of existing testing equipment occupying a large area, having high equipment costs, and requiring multiple transfers during the testing process, which is not conducive to testing work.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A comprehensive testing device for airtight burst pressure resistance of liquid-cooled plates includes a test bench area, a control system area, an actuator area, and a base frame. The test bench area, control system area, and actuator area are all set on the base frame. The test bench area is provided with a table surface for placing the liquid-cooled plates. The control system area is equipped with a display, pressure gauge, operation buttons, and a computer control system. The actuator area is equipped with components such as valves, pumps, tanks, and pipelines.

[0008] The aforementioned liquid-cooled plate airtight burst pressure resistance comprehensive test equipment includes a lifting platform, a water tank, lifting rails, and lifting cylinders in the test platform area. The water tank is fixedly installed on the base frame, and the bottom of the lifting platform has a table surface. The lifting rails are fixedly installed on the base frame and located on both sides of the water tank, with two rails on each side, arranged symmetrically. There are two lifting cylinders, symmetrically arranged on both sides of the water tank, with their lower ends fixedly installed on the base frame and their upper ends fixed together with the lifting platform. The lifting cylinders drive the lifting platform to move up and down along the lifting rails in the inner cavity of the water tank.

[0009] The aforementioned liquid-cooled plate airtight burst pressure resistance comprehensive test equipment has a water tank equipped with an inlet and an outlet.

[0010] The aforementioned liquid-cooled plate airtight burst pressure resistance comprehensive test equipment has a scale on the side wall of the water tank for observing the water level.

[0011] The aforementioned liquid-cooled plate airtight burst pressure resistance comprehensive test equipment has drainage holes on the platform.

[0012] The aforementioned liquid-cooled plate airtight explosion pressure resistance comprehensive test equipment has a conversion pipeline in the actuator area.

[0013] This utility model has the following advantages:

[0014] This utility model discloses a comprehensive testing equipment for the airtightness, burst pressure resistance, and pressure resistance of liquid-cooled plates. It comprises a test platform area, a control system area, and an actuator area. This comprehensive testing equipment integrates airtightness, burst pressure, and pressure resistance testing functions into one unit, offering multiple capabilities. The equipment can perform both dry and wet airtightness testing. For wet testing, it features automatic water injection and drainage functions and a lifting platform for automatic immersion testing. This solves the problems of single-function, multi-unit equipment requiring large space, high equipment costs, and multiple transfers during the testing process, which are detrimental to testing work. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0016] Figure 2 This is a three-dimensional schematic diagram of the base frame;

[0017] Figure 3 This is a three-dimensional schematic diagram of the test bench area;

[0018] Figure 4 This is a 3D schematic diagram of the water tank;

[0019] Figure 5 This is a 3D schematic diagram of the lifting platform;

[0020] Figure 6 This is a schematic diagram of the airtightness test principle.

[0021] Figure 7 This is a schematic diagram of the water testing principle.

[0022] Figure 8 This is a schematic diagram of the pressure resistance test principle.

[0023] Figure 9 This is a schematic diagram of a vacuum test.

[0024] Figure 10 This is a schematic diagram of the blasting test principle.

[0025] The labels in the diagram represent: 1. Test bench area, 2. Control system area, 3. Actuator area, 4. Base frame, 5. Liquid cooling plate, 1-1. Lifting platform, 1-2. Water tank, 1-3. Lifting rail, 1-4. Lifting cylinder, 1-1-1. Platform, 1-2-1. Water inlet, 1-2-2. Water outlet, 1-2-3. Scale, 3-1. Conversion pipeline. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] This utility model relates to a comprehensive testing device for the airtight burst pressure resistance of liquid-cooled plates, such as... Figure 1 As shown, it includes a test bench area 1, a control system area 2, an actuator area 3, and a base frame 4. The actuator area 3 is located on the left side of the base frame 4, the test bench area 1 is located in the middle of the base frame 4, and the control system area 2 is located on the right side of the base frame 4.

[0028] This utility model discloses a comprehensive testing device for the airtightness, burst pressure resistance, and pressure resistance of a liquid-cooled plate. The actuator area 3 includes an airtightness testing system, a pressure resistance testing system, a vacuum testing system, and a burst pressure testing system. The airtightness testing system mainly consists of an air filter, a precision pressure regulating valve, and a leak detector, with various pressure and leakage units available. The pressure resistance testing system mainly consists of an air tank, an electro-proportional valve, a pressure sensor, and a pneumatic control valve. The vacuum testing system mainly consists of a vacuum pump, a vacuum tank, a vacuum flow regulating valve, a vacuum regulating valve, a vacuum filter, a vacuum vent valve, and a vacuum pressure sensor. The burst pressure testing system mainly consists of a media tank, a Y-type filter, an air filter, a pressure regulating valve, a check valve, a solenoid valve, a pneumatic control valve, a pressure gauge, a pressure sensor, and an electro-proportional valve.

[0029] This utility model provides a comprehensive testing device for airtightness, bursting, and pressure resistance of liquid-cooled plates. The conversion pipeline 3-1 is used for the conversion pipeline connection of three tests: airtightness, bursting, and pressure resistance.

[0030] The working principle of this utility model is as follows: A comprehensive testing device for the airtightness and burst pressure resistance of a liquid-cooled plate.

[0031] Place the liquid cooling plate 5 on the table 1-1-1. Select the conversion pipe 3-1 as needed and insert it into the water nozzle connector of a single liquid cooling plate 5. Other water nozzles need to be sealed with connectors. Start this utility model and select the airtightness, burst or pressure resistance test type on the display panel. All test condition parameters have been set and entered. Test parameters can also be modified and adjusted according to actual needs. After the performance test is completed, the panel outputs the test results.

[0032] For the water test, after the liquid cooling plate 5 is placed on the platform 1-1-1, the equipment is started. The lifting cylinders 1-4 on both sides drive the lifting platform 1-1 to descend along the lifting rails 1-3 on both sides. The liquid cooling plate 5 falls, and water begins to be filled into the water inlet 1-2-1 at the upper end of the side wall of the water tank 1-2. According to the test conditions, the water filling is stopped when the required water level is reached. At this time, the liquid cooling plate 5 is completely submerged in the water tank. Compressed air required by the test conditions is introduced into the liquid cooling plate 5 and the pressure is maintained for a certain time. During the test, the presence of air bubbles around the sample is visually inspected. If no bubbles are present, the seal is good and the water test is qualified. After the test is completed, the lifting platform 1-1 is raised, and the liquid cooling plate 5 is exposed above the water surface for easy removal. If a retest is not required, the water outlet 1-2-2 can drain the water until all the water in the water tank is drained.

[0033] Air tightness test

[0034] The test parameters are pre-set, compressed air is used as the driving gas and pressure source, the test program is started, the test pressure is manually adjusted to the set value, after pressure stabilization, it automatically enters the pressure holding and leak detection stage, the leakage result is fed back after the test, and the pass or fail is judged based on the result. The schematic diagram is as follows. Figure 6 As shown.

[0035] Water testing

[0036] During water testing, the liquid cooling plate 5 is placed below the water surface in the tank. The test pressure is adjusted to the set value, and pressure is maintained. Bubbles are observed through the water tank's viewing window. The schematic diagram is shown below. Figure 7 As shown.

[0037] Pressure resistance test

[0038] The test parameters are pre-set, compressed air is used as the driving gas and pressure source, the test program is started, the proportional valve adjusts the test pressure to the set value, after pressure stabilization, it automatically enters the pressure holding stage, and the pressure is automatically released after the test ends. It can perform valve-open pressure holding and valve-open pressure holding. The schematic diagram is shown below. Figure 8 As shown.

[0039] Vacuum test

[0040] The vacuum pump serves as the power source. The vacuum regulating valve controls the test pressure, the vacuum holding valve closes to maintain the target vacuum level, and the atmospheric vent valve opens to release the vacuum. Sensors detect the pressure conditions inside the pipeline and the sample. After the test starts, the vacuum regulating valve opens, the pump operates, and the pump expels air from the sample. The pressure sensor collects the pressure. When the pressure reaches the target value, the control system issues a command to close the vacuum regulating valve and the vacuum holding valve, and the sample enters a vacuum holding state. After the holding period ends, the equipment automatically opens the atmospheric vent valve to release the vacuum inside the test piece, ends the test, and generates a report. The schematic diagram is shown below. Figure 9 As shown.

[0041] Explosion test

[0042] The experiment mainly consists of two processes: venting and testing. Before testing, the injection pump is started to vent the entire system pipeline and the test specimen. When a continuous liquid output is observed at the outlet of the vent valve, and no air bubbles are found in the continuous liquid, it proves that the gas has been completely vented. Based on the booster pump's pressure ratio, the driving air pressure of the booster pump is controlled by an electro-proportional valve, thereby controlling the required test pressure output by the pneumatic pump. The computer control system controls the pressure of the entire system by adjusting the current signal of the electro-proportional valve and maintains the stability of the system pressure. The schematic diagram is shown below. Figure 10 As shown.

[0043] This invention can perform airtightness, immersion water testing, burst testing, and pressure resistance testing on liquid-cooled plate products. This invention is not limited to liquid-cooled plate products, but can also be used for other radiator products.

Claims

1. A comprehensive testing device for the airtight burst pressure resistance of liquid-cooled plates, characterized in that: It includes a test bench area (1), a control system area (2), an actuator area (3), and a base frame (4). The test bench area (1), the control system area (2), and the actuator area (3) are all set on the base frame (4). The test bench area (1) is provided with a table surface (1-1-1) for placing a liquid cooling plate (5). The control system area (2) is provided with a display, a pressure gauge, operation buttons, and a computer control system. The actuator area (3) is provided with valves, pumps, tanks, and pipelines.

2. The comprehensive testing equipment for airtight burst pressure resistance of liquid-cooled plates according to claim 1, characterized in that: The test bench area (1) is provided with a lifting platform (1-1), a water tank (1-2), a lifting rail (1-3), and a lifting cylinder (1-4). The water tank (1-2) is fixedly installed on the base frame (4). The bottom of the lifting platform (1-1) is provided with a table surface (1-1-1). The lifting rail (1-3) is fixedly installed on the base frame (4) and located on both sides of the water tank (1-2), with two on each side, symmetrically arranged. There are two lifting cylinders (1-4), symmetrically arranged on both sides of the water tank (1-2). The lower end is fixedly installed on the base frame (4), and the upper end is fixed together with the lifting platform (1-1). The lifting cylinder (1-4) drives the lifting platform (1-1) to move up and down in the inner cavity of the water tank (1-2) along the lifting rail (1-3).

3. The comprehensive testing equipment for airtight burst pressure resistance of liquid-cooled plates according to claim 2, characterized in that: The water tank (1-2) is provided with an inlet (1-2-1) and an outlet (1-2-2).

4. The comprehensive testing equipment for airtight burst pressure resistance of liquid-cooled plates according to claim 2, characterized in that: A scale (1-2-3) is provided on the side wall of the water tank (1-2) for observing the water level.

5. The comprehensive testing equipment for airtight burst pressure resistance of liquid-cooled plates according to claim 1, characterized in that: The countertop (1-1-1) is provided with drainage holes.

6. The comprehensive testing equipment for airtight burst pressure resistance of liquid-cooled plates according to claim 1, characterized in that: The actuator area (3) is provided with a conversion pipeline (3-1).

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