A liquid cooling plate test fixture

Abstract

The present application discloses a liquid cooling plate testing tool, which belongs to the field of liquid cooling plate testing technology. It mainly includes a base; a detection mechanism, which is installed on the base, and the detection mechanism includes a support table fixedly installed on the base, a placement groove is opened on the support table, and a high-pressure bellows is fixedly installed on the bottom of the support table; a liquid cooling plate, which is placed in the placement groove; a second tube body, which is installed on one side of the support table, and the bottom of the second tube body extends to the bottom of the support table. A liquid cooling plate testing tool of the present application is provided with a detection component and a sleeve, which can generate a strong negative pressure to the inside of the liquid cooling plate through a negative pressure gas nozzle before the air tightness test of the liquid cooling plate, and absorb the liquid and gas left inside the liquid cooling plate, so as to ensure the accuracy of the air tightness test of the liquid cooling plate, and then inject high-pressure gas for detection into the liquid cooling plate, and ensure the sealing of the liquid cooling plate in the process.

Description

Technical Field

[0001] The present application relates to the technical field of liquid cooling plate testing, and in particular to a liquid cooling plate testing tool. Background Art

[0002] The liquid cooling plate is a highly efficient thermal management component. Through a specific design, it uses coolant as a medium for heat transfer, indirectly transferring the heat of the heat-generating components to the cooling liquid enclosed in the circulation pipeline, thereby achieving rapid heat transfer and dissipation. In order to evaluate the heat dissipation performance, flow characteristics, mechanical properties and reliability of the liquid cooling plate, it is usually necessary to perform performance and quality tests on the liquid cooling plate. Among the many tests, the airtightness test of the liquid cooling plate is an indispensable test step. This test ensures the heat dissipation effect and durability of the liquid cooling plate, and ensures the normal operation of the liquid cooling plate in subsequent use.

[0003] For example, the patent with authorization announcement number CN219996453U discloses a liquid cooling plate air tightness testing device, including a main frame, a detection plate and a fixing clamp, and also includes a sliding member, which is fixedly arranged in the main frame. By setting the sliding member, the liquid cooling plate can be guided so that its water inlet and outlet are quickly connected with the airtight pipeline assembly.

[0004] Although the above-mentioned device realizes the air tightness test of the liquid cooling plate, in order to ensure the accuracy of the air tightness test of the liquid cooling plate, it is usually necessary to inject specific high-pressure gas into the liquid cooling plate. However, the liquid cooling plate is often tested for other items before the air tightness test. It is inevitable that a small amount of previously tested media will remain inside the liquid cooling plate, such as water and other liquids. Secondly, there is also a lot of air left inside the liquid cooling plate. If the liquid and gas in the liquid cooling plate are not cleaned before the air tightness test, it will inevitably affect the test results of the subsequent liquid cooling plate air tightness test. Therefore, it is necessary to provide a liquid cooling plate test tooling to solve the above problems.

[0005] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0006] Based on the above problems existing in the prior art, the problem to be solved by the present application is to provide a liquid cooling plate test tool to solve the problem that the liquid and gas remaining inside the liquid cooling plate are not cleaned before the air tightness test, which affects the test results.

[0007] The technical solution adopted by the present application to solve its technical problems is: a liquid cooling plate test fixture, including a base; a detection mechanism, which is installed on the base, and the detection mechanism includes a support table fixedly installed on the base, a placement groove is opened on the support table, and a high-pressure bellows is fixedly installed on the bottom of the support table; a liquid cooling plate, which is placed in the placement groove; a second tube body, which is installed on one side of the support table, and the bottom of the second tube body extends to the bottom of the support table, and a pressure test gauge is installed on one side of the second tube body close to the liquid cooling plate; a test component, which is installed inside the support table, and the test component includes a fixedly installed A side plate on one side of the support platform, wherein a side slide groove is provided on the side plate; a slider, which is slidably installed in the side slide groove, and a spring is fixedly installed between the slider and the side slide groove; a sleeve, which is slidably sleeved on the side of the second tube body away from the liquid cooling plate, and a connecting rod is fixedly installed between the sleeve and the slider; a negative pressure air nozzle, which is installed on the surface of the sleeve, and a negative pressure box is connected to one side of the negative pressure air nozzle, and an air inlet nozzle is also installed on the surface of the sleeve, and one side of the air inlet nozzle is connected to the high-pressure bellows, and the air inlet nozzle is located above the negative pressure air nozzle; an air inlet hole, which is opened on the surface of the second tube body, and the air inlet hole is located above the air inlet nozzle.

[0008] Furthermore, an auxiliary slide is fixedly installed on the surface of the second tube body, an auxiliary slide groove is opened in the sleeve, and the auxiliary slide is slidably installed in the auxiliary slide groove.

[0009] Furthermore, a limiting groove is provided on the surface of the slider, a hook is movably installed on the side panel, the hook is located in the side sliding groove, the limiting groove includes a first channel provided on the slider, and one side of the hook extends into the first channel to form a hook holding portion.

[0010] Furthermore, a second channel is provided at the end of the first channel, and a third channel is provided at the end of the second channel. The bottom height of the first channel is higher than the bottom height of the second channel and forms a blocking step, and the bottom height of the third channel is higher than the bottom height of the second channel and also forms the blocking step; a first stationary point is provided at the position where the first channel communicates with the second channel, and a second stationary point is provided at the position where the second channel communicates with the third channel, and the horizontal height position of the second stationary point is close to the horizontal height position of the first stationary point.

[0011] Furthermore, a fourth channel is arranged at the second stationary point, the bottom height of the fourth channel is flush with the bottom height of the third channel, the end of the fourth channel is connected with the first channel, a lifting block is arranged at the starting end of the fourth channel, a PLC control system is arranged at the bottom of the support platform, and the lifting block is connected with the signal of the pressure test gauge; a reset slope is arranged at the connection point between the fourth channel and the first channel, the highest position of the reset slope is higher than the bottom height of the first channel and also forms the blocking step.

[0012] Furthermore, a fifth channel is provided at the end of the third channel, the groove bottom height of the fifth channel is lower than the groove bottom height of the third channel and also forms the blocking step, and a third stagnation point is provided at the connection between the fifth channel and the third channel, and the horizontal height of the third stagnation point is consistent with the horizontal height position of the first stagnation point; the end of the fifth channel is connected to the first channel, and a transition slope is provided at the position where the fifth channel is connected to the first channel, and the highest position of the transition slope is higher than the groove bottom height of the first channel and forms a transition step.

[0013] Furthermore, a PLC control system is provided on the base, a relief valve is installed at the bottom of the sleeve, the displacement of the relief valve is smaller than the displacement of the negative pressure air nozzle, and a contact switch is provided in the fifth channel, and the contact switch is connected to the relief valve signal.

[0014] Furthermore, a sealing cylinder is fixedly installed at the bottom of the support platform, the sealing cylinder is sleeved on the surface of the second tube body, the bottom of the sealing cylinder is in contact with the top of the sleeve, and the sealing cylinder is made of rubber.

[0015] Furthermore, sliding members are fixedly installed on both sides of the sliding block, and auxiliary sliding grooves are opened on both sides of the side sliding grooves, and the sliding members are slidably installed in the auxiliary sliding grooves.

[0016] Furthermore, a lifting groove is provided on one side of the side plate, a handle is slidably installed in the lifting groove, and one side of the handle is fixedly connected to one side of the sliding block.

[0017] The beneficial effect of the present application is that a liquid cooling plate testing tool provided by the present application, by being provided with a detection component and a sleeve, can generate a strong negative pressure on the inside of the liquid cooling plate through a negative pressure gas nozzle before the air tightness test of the liquid cooling plate, thereby sucking out the liquid and gas remaining inside the liquid cooling plate, and then injecting high-pressure gas for detection into the liquid cooling plate, and ensuring the sealing of the liquid cooling plate in this process, thereby ensuring the accuracy of the air tightness test of the liquid cooling plate.

[0018] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 This is an overall schematic diagram of a liquid cooling plate testing tooling in this application;

[0021] Figure 2 for Figure 1 A magnified view of the structure of the middle A area;

[0022] Figure 3 for Figure 2 Disassembly diagram of the liquid cooling plate and the detection mechanism;

[0023] Figure 4 for Figure 1 Side view of the overall structure of the detection component;

[0024] Figure 5 for Figure 4 Side view of the overall structure;

[0025] Figure 6 for Figure 5 Schematic diagram of the overall structure after partial section in the middle;

[0026] Figure 7 for Figure 6 Schematic diagram of the overall structure of the test component;

[0027] Figure 8 for Figure 7 Schematic diagram of the overall structure after the partial structure section;

[0028] Fig. 9 for Figure 8 The middle local structure is cut away and the rear side view;

[0029] Fig.10 for Fig. 9 A magnified view of the structure of region B.

[0030] Among them, the reference numerals in the figure are:

[0031] 1. Base; 2. Detection mechanism; 21. Support platform; 22. Handle; 23. Lifting slot;

[0032] 3. Liquid cooling plate; 31. External plate; 32. Cooling plate; 33. Liquid discharge part; 34. Liquid infusion part; 4. First tube body; 5. Second tube body; 51. Pressure test gauge; 52. Air inlet; 53. Auxiliary sliding part;

[0033] 6. Test assembly; 61. Side plate; 611. Auxiliary slide; 62. Sliding block; 621. Sliding member; 63. Side slide; 64. Spring; 65. Connecting rod; 7. Sleeve; 71. Sealing cylinder; 72. Air release valve; 73. Negative pressure nozzle; 74. Air inlet nozzle; 75. Auxiliary slide;

[0034] 8. Limiting groove; 81. First channel; 82. Second channel; 83. Third channel; 84. Fourth channel; 85. Fifth channel; 86. First stationary point; 87. Second stationary point; 88. Third stationary point; 89. Transition slope; 810. Lifting block; 9. Hook; 91. Hook holding part. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0037] Embodiment 1: This embodiment mainly introduces the basic structure and working principle of the liquid cooling plate test tooling, specifically:

[0038] like Figure 1-Figure 3 As shown, the present application provides a liquid cooling plate test tool, including a base 1, which is a support part of the liquid cooling plate test tool, and is usually placed on a flat ground to ensure that the air tightness test of the liquid cooling plate is carried out stably;

[0039] A detection mechanism 2 for detecting the liquid cooling plate is installed on the base 1. The detection mechanism 2 includes a support platform 21 fixedly installed on the base 1. The support platform 21 is mainly used to provide support for the air tightness test of the liquid cooling plate. A liquid cooling plate 3 is placed on the support platform 21. The liquid cooling plate 3 is the existing liquid cooling plate to be detected.

[0040] The liquid cooling plate 3 includes an outer plate body 31 placed on a support platform 21. Figure 3A placement groove (not shown) adapted to the outer plate body 31 is provided on the support platform 21, and the liquid cooling plate 3 is suitable for being placed in the placement groove without shaking, so as to ensure the stability of the liquid cooling plate during the air tightness test;

[0041] The liquid cooling plate 3 also includes a cooling plate 32 disposed in the outer plate body 31. The cooling plate 32 and the outer plate body 31 are designed as an integrated body. A drain portion 33 and a liquid infusion portion 34 are respectively installed on both sides of the cooling plate 32, so that the cooling liquid enters the cooling plate 32 from the drain portion 33 and then is discharged from the drain portion 33. A metal channel is also arranged in the cooling plate 32, so that the cooling liquid circulates in the metal channel, so that the heat dissipation effect of the liquid cooling plate 3 is better.

[0042] Continue to refer Figure 2-Figure 3 A first tube body 4 and a second tube body 5 are respectively installed on both sides of the support platform 21, wherein the first tube body 4 corresponds to the discharge part 33, and the second tube body 5 corresponds to the infusion part 34, and a spiral joint (not shown in the figure) is fixedly installed on the side away from the infusion part 34 and the discharge part 33, and the first tube body 4 and the second tube body 5 are suitable for connecting with the infusion part 34 and the discharge part 33 through the spiral joint;

[0043] A high-pressure bellows (not shown in the figure) is also fixedly installed at the bottom of the support platform 21. One end of the first tube body 4 and the second tube body 5 penetrates the support platform 21 and is connected to the high-pressure bellows. A pressure test gauge 51 is also fixedly installed on the side of the second tube body 5 close to the liquid cooling plate 3 for performing an air pressure test on the inside of the liquid cooling plate 3. When performing an air tightness test on the liquid cooling plate, firstly, the staff only needs to manually place the liquid cooling plate 3 in the placement groove, and then connect and lock the first tube body 4 and the second tube body 5 to the infusion part 34 and the drainage part 33 respectively. After the connection is completed, the staff starts the high-pressure bellows, and the high-pressure gas in the high-pressure bellows enters the metal channel through the second tube body 5 and the infusion part 34. After a period of gas injection, the high-pressure bellows is closed. At this time, a certain period of waiting is required. This process is the pressure holding period. During this process, if the pressure test gauge 51 does not show any abnormality, it means that the liquid cooling plate 3 is leak-free and qualified.

[0044] Although the above process realizes the air tightness test of the liquid cooling plate, the detection medium and air remaining in the liquid cooling plate 3 are not discharged before the air tightness test. In order to solve this problem, Figure 4-Figure 8As shown, a test assembly 6 is installed inside the support platform 21, and the test assembly 6 includes a side plate 61 fixedly installed on one side of the support platform 21, a side slide groove 63 is opened on the side plate 61, and a slider 62 is slidably installed in the side slide groove 63, and a spring 64 is installed between the slider 62 and the side slide groove 63. In the initial state, due to the action of gravity, the slider 62 is located at the bottom of the side slide groove 63, and the spring 64 is in a normal state at this time. When subjected to an external force, the slider 62 is suitable for moving upward, and the spring 64 is compressed. When the external force is released, the slider 62 returns to the bottom position of the side slide groove 63 by the rebound force of the spring 64 and the action of gravity;

[0045] For further reference, Fig. 9 Sliders 621 are fixedly installed on both sides of the slider 62, and auxiliary slide grooves 611 are opened on both sides of the side slide grooves 63. The sliders 621 are slidably installed in the auxiliary slide grooves 611. When the slider 62 slides in the side slide grooves 63, the sliders 621 slide in the auxiliary slide grooves 611 to ensure that the slider 62 slides in the vertical direction and does not separate from the side slide grooves 63.

[0046] like Figure 6-Figure 8 As shown, a sleeve 7 is slidably installed on the side of the second tube body 5 away from the liquid cooling plate 3, and an opening is provided at the bottom of the second tube body 5 to facilitate communication with the sleeve 7. The sleeve 7 is sleeved on the surface of the second tube body 5, and an auxiliary slide 53 is fixedly installed on the surface of the second tube body 5. At the same time, an auxiliary slide groove 75 is opened in the sleeve 7, and the auxiliary slide 53 is slidably installed in the auxiliary slide groove 75. In the initial state, due to the gravity of the sleeve 7 itself, the auxiliary slide 53 is located at the top position of the auxiliary slide groove 75. At this time, a part of the sleeve 7 is sleeved on the surface of the second tube body 5. When subjected to external force, the sleeve 7 moves upward, and the auxiliary slide 53 moves relatively in the auxiliary slide groove 75. The distance between the sleeve 7 and the bottom of the support platform 21 will also gradually decrease. When the auxiliary slide 53 moves relatively to the bottom of the auxiliary slide groove 75, it means that the sleeve 7 can no longer move upward.

[0047] In order to facilitate the movement of the sleeve 7, a connecting rod 65 is fixedly installed between the sleeve 7 and the slider 62, and when the slider 62 slides up and down, the connecting rod 65 is driven to move synchronously, and then the sleeve 7 is driven to move synchronously. A relief valve 72 is installed at one end of the sleeve 7 away from the second tube body 5. When the relief valve 72 is opened, the interior of the sleeve 7 is communicated with the outside, and air is suitable for entering or leaving the sleeve 7 through the relief valve 72. When the relief valve 72 is in a closed state, the interior of the sleeve 7 is in a closed state, so as to facilitate the air tightness test;

[0048] In the process of the sleeve 7 moving up and down, it is inevitable that a gap will be generated between the sleeve 7 and the second tube body 5, so a sealing cylinder 71 is fixedly installed at the bottom of the support platform 21, and the sealing cylinder 71 is sleeved on the surface of the second tube body 5, and the bottom of the sealing cylinder 71 fits with the top of the sleeve 7 to seal the gap between the sleeve 7 and the second tube body 5. In this embodiment, the sealing cylinder 71 is made of elastic material, such as rubber and other elastic materials. When the sleeve 7 moves up, the sealing cylinder 71 is compressed, which will not affect the upward movement of the sleeve 7 while ensuring the seal between the sleeve 7 and the second tube body 5;

[0049] A negative pressure air nozzle 73 and an air inlet nozzle 74 are respectively installed on the surface of the sleeve 7 from bottom to top. The negative pressure air nozzle 73 is close to the air release valve 72. One side of the negative pressure air nozzle 73 and the air inlet nozzle 74 both extend into the sleeve 7. The air inlet nozzle 74 is close to the sealing tube 71. It should be noted that one side of the negative pressure air nozzle 73 is connected to a negative pressure box (not shown in the figure). When the negative pressure box is started, the negative pressure air nozzle 73 is suitable for generating a strong negative pressure to absorb the gas and impurities in the sleeve 7. At the same time, one side of the air inlet nozzle 74 is connected to a high-pressure bellows. When the high-pressure bellows is started, it is suitable for injecting high-pressure gas for detection into the sleeve 7 through the air inlet nozzle 74 to facilitate the air tightness test.

[0050] In the initial state, the air inlet nozzle 74 is located near the sealing tube 71, and the sleeve 7 is also in the initial position, and the auxiliary slide 53 is located at the highest position on the auxiliary slide groove 75. At this time, the upper half of the sleeve 7 is in contact with the outer wall of the second tube body 5, so that the air inlet nozzle 74 extends to one side of the sleeve 7 and is in contact with the outer wall of the second tube body 5. If the high-pressure bellows is turned on at this time, the air inlet nozzle 74 cannot inject high pressure into the sleeve 7. At the same time, the negative pressure air nozzle 73 is located on the side close to the air release valve 72, and the side of the negative pressure air nozzle 73 extending to the sleeve 7 is not blocked by the second tube body 5. If the negative pressure box is in the open state at this time, the negative pressure air nozzle 73 will generate negative pressure to absorb the gas and impurities in the sleeve 7 and the second tube body 5.

[0051] Continue to refer Figure 8 , an air inlet hole 52 is provided on the surface of the second tube body 5, and the air inlet hole 52 is close to the sealing tube 71 and is located on the upper side of the air inlet nozzle 74. When the sleeve 7 is continuously moved upward, the auxiliary slide 53 is relatively moved to the bottom of the auxiliary slide groove 75, and the air inlet nozzle 74 is extended to one side of the sleeve 7 to coincide with the air inlet hole 52, and the negative pressure air nozzle 73 is extended to one side of the sleeve 7 to fit with the outer wall of the second tube body 5. If the negative pressure box and the high pressure bellows are both in the open state at this time, since the negative pressure air nozzle 73 is blocked by the second tube body 5, the air inlet nozzle 74 coincides with the air inlet hole 52, and then at this time there is no negative pressure effect in the sleeve 7 and the second tube body 5, and high pressure will be introduced;

[0052] When conducting the air tightness test of the liquid cooling plate, referring to the above, after the liquid cooling plate is installed, the staff first starts the negative pressure box at the beginning of the test. The start of the negative pressure box causes the negative pressure nozzle 73 to generate a strong negative pressure, and the gas and impurities in the liquid cooling plate 3 are sucked out through the second tube body 5 and the sleeve 7, and the interior of the liquid cooling plate 3 is cleaned in advance. Then the staff pushes the slider 62 upward, and the upward movement of the slider 62 drives the connecting rod 65 to move upward, and the upward movement of the connecting rod 65 drives the sleeve 7 to move upward, thereby driving the negative pressure nozzle 73 and the inlet. The air nozzle 74 moves upward synchronously. When the sleeve 7 moves upward for a short distance, the negative pressure air nozzle 73 extends to one side of the sleeve 7 and is blocked by the second tube body 5. At this time, there is no negative pressure effect. When the auxiliary slide 53 moves relatively to the bottom position of the auxiliary slide groove 75, the slider 62 can no longer move upward, and the negative pressure air nozzle 73 is also blocked by the second tube body 5. At this time, the air inlet nozzle 74 is in a smooth state, which is suitable for injecting high-pressure gas into the sleeve 7, the second tube body 5 and the liquid cooling plate 3. At this time, the air tightness test begins;

[0053] After a certain period of gas injection, the high-pressure bellows is closed, and the staff continues to hold the slider 62 to prevent it from resetting under the force of the spring 64. The main purpose is to ensure that the space in the sleeve 7 is consistent with the space before gas injection, so as to ensure that the internal air pressure remains relatively stable without leakage. However, the displacement of the slider 62 can also be controlled by electrical components, such as cylinders and other driving components. After the pressure is maintained for a certain period of time, the staff can observe the pressure test gauge 51 to know whether there is a leak in the liquid cooling plate 3. After the pressure is maintained, the staff releases the slider 62, and the slider 62 is reset under the action of the spring 64 and its own force. At the same time, the sleeve 7 returns to its initial position. Subsequently, the gas in the sleeve 7, the second tube 5 and the liquid cooling plate 3 can be released by opening the negative pressure box or opening the air release valve 72.

[0054] In this embodiment, in order to facilitate the staff to control the up and down movement of the slider 62, as shown in FIG. Figure 4 As shown, a lifting groove 23 is opened on one side of the side panel 61, and a handle 22 is slidably installed in the lifting groove 23. One side of the handle 22 is fixedly connected to one side of the slider 62, so that the staff can control the slider 62 to move upward by lifting the handle 22, so as to facilitate the air tightness test of the liquid cooling plate.

[0055] Embodiment 2: In the above embodiment, by providing a negative pressure air nozzle 73 and a linkage arrangement of the slider 62 and the sleeve 7, the gas and impurities in the liquid cooling plate 3 can be sucked out at the beginning of the test before the air tightness test is performed. However, the test is usually to test the standard pressure of the liquid cooling plate 3. In accidental cases, for example, in order to make the liquid cooling plate 3 work longer, a larger amount of coolant relative to the standard amount will be injected into the liquid cooling plate 3. However, for the critical amount of coolant, the possibility of leakage of the liquid cooling plate 3 will also be greater.

[0056] In order to further improve the accuracy of the air tightness test of the liquid cooling plate, this embodiment adds a set of limit components on the basis of the above embodiment, which cooperates with the air inlet nozzle 74 and the negative pressure air nozzle 73 to test the critical pressure value of the liquid cooling plate. Specifically:

[0057] like Figure 8-Figure 10 As shown, a limiting groove 8 is provided on the surface of the slider 62, and a hook 9 is movably installed on the side plate 61, and the hook 9 is located in the side slide groove 63. The limiting groove 8 includes a first channel 81 provided on the slider 62, and one side of the hook 9 extends into the first channel 81 and the side of the hook 9 is defined as a hook holding portion 91. It should be noted that the side of the hook holding portion 91 close to the first channel 81 is made of elastic material. When one end of the hook holding portion 91 is pressed against the first channel 81, it is already in an extruded state. If the bottom of the first channel 81 continuously approaches the surface of the slider 62, the hook holding portion 91 will also be more strongly pressed. Otherwise, the hook holding portion 91 will change from the extruded state to the normal state. However, in order for the hook holding portion 91 to be able to continuously press against the limiting groove 8, in this embodiment, the bottom depth of the limiting groove 8 will not be too deep, and the hook holding portion 91 will always be controlled to be in an extruded state.

[0058] A second channel 82 is provided at the end of the first channel 81. The bottom height of the first channel 81 is higher than the bottom height of the second channel 82 and forms a blocking step. Therefore, after the hooking portion 91 enters the second channel 82 from the first channel 81, it cannot return to the first channel 81 from the second channel 82.

[0059] A third channel 83 is provided at the end of the second channel 82. The bottom height of the third channel 83 is lower than that of the second channel 82 and also forms a blocking step. Thus, after the hooking portion 91 enters the third channel 83 from the second channel 82, it cannot return to the second channel 82 from the third channel 83.

[0060] For the convenience of explanation, the position where the first channel 81 communicates with the second channel 82 is defined as the first stationary point 86, and the position where the second channel 82 communicates with the third channel 83 is defined as the second stationary point 87. The horizontal height position of the second stationary point 87 is slightly higher than the horizontal height position of the first stationary point 86.

[0061] Continue to refer Fig.10 , a fourth channel 84 is provided at the second stationary point 87, the bottom height of the fourth channel 84 is flush with the bottom height of the third channel 83, the hook holding portion 91 can be directly moved from the second stationary point 87 to the fourth channel 84, but a lifting block 810 is slidably installed at the starting end of the fourth channel 84, it should be noted that the lifting block 810 is lifted or lowered by electric control, and the lifting or lowering of the lifting block 810 is determined according to the result of the pressure test gauge 51, when the result of the pressure test gauge 51 is qualified, the lifting block 810 is in a raised state, on the contrary, if the test result is unqualified, the lifting block 810 is in a lowered state, at the beginning of the test, the lifting block 810 is in a raised state, when it changes to a lowered state, the top of the lifting block 810 is flush with the bottom of the fourth channel 84, at this time the hook holding portion 91 can directly enter the fourth channel 84;

[0062] The end of the fourth channel 84 is connected to the first channel 81, and a reset slope is provided at the connection point between the fourth channel 84 and the first channel 81. The highest position of the reset slope is higher than the bottom height of the first channel 81 and also forms a blocking step, so that the hooking portion 91 is suitable for returning to the first channel 81 through the reset slope. However, when the hooking portion 91 slides in the first channel 81, it cannot directly enter the fourth channel 84 from the first channel 81. In the present application, a PLC control system is provided on the base 1 to facilitate the alternating opening of each electrical component.

[0063] When conducting the air tightness test of the liquid cooling plate, after the liquid cooling plate 3 is placed on the support platform 21 and connected to the first tube body 4 and the second tube body 5 respectively, the PLC control system controls the negative pressure box to open, and the gas and impurities in the liquid cooling plate 3 are sucked out through the negative pressure air nozzle 73, and then the staff holds the handle 22 and lifts the handle 22, and the handle 22 drives the slider 62 to move upward, so that the sleeve 7 moves up synchronously. When the sleeve 7 moves up a short distance, one end of the negative pressure air nozzle 73 has been blocked by the second tube body 5. At this time, there is no negative pressure effect in the sleeve 7. As the auxiliary slide 53 continues to slide relatively in the auxiliary slide groove 75, when the auxiliary slide 53 moves to the bottom position of the auxiliary slide groove 75, the handle 22 can no longer move up. At this time, the staff can control the high-pressure bellows to start through the PLC control system to inject high-pressure gas into the liquid cooling plate 3;

[0064] During this process, as the slider 62 moves upward, the hook portion 91 moves from the initial position to the first stationary point 86. After a period of gas injection, the staff releases the handle 22, and the slider 62 is reset under the action of the spring 64 and its own gravity. At this time, the hook portion 91 slides from the first stationary point 86 to the second channel 82, and continues to slide in the second channel 82 until it reaches the third stationary point 88. At this time, the slider 62 can no longer move downward. Due to the associated effect of the slider 62, the sleeve 7 can no longer move. Since the horizontal height of the second stationary point 87 is close to the horizontal height of the first stationary point 86, the slider 62 will move downward a small distance during this movement, and the sleeve 7 will also move downward a small distance.

[0065] During this downward movement, the air inlet nozzle 74 moves downward from the position where it coincides with the air inlet hole 52 after moving upward to the bottom of the air inlet hole 52, and is blocked by the surface of the second tube body 5 again. At the same time, the negative pressure air nozzle 73 is also in a blocked state. At this time, the air inlet nozzle 74 and the negative pressure air nozzle 73 are both in a blocked state, which will not affect the pressure maintenance of the liquid cooling plate 3. It should be noted that the sleeve 7 will only move downward a small distance under the drive of the slider 62, and the air inlet nozzle 74 is in a continuous air injection state before being blocked. When the air inlet nozzle 74 is completely blocked, the sleeve 7 will not continue to move downward under the action of the hooking portion 91, thereby not excessively affecting the pressure maintenance of the liquid cooling plate 3.

[0066] After a certain period of pressure maintenance, if the value of the pressure test gauge 51 does not change, it means that the liquid-cooled plate 3 is leak-free and qualified, the lifting block 810 will not move down, and the hook holding portion 91 will stay at the second stationary point 87. If the pressure test gauge 51 detects that the liquid-cooled plate 3 is in a leaking state, the pressure test gauge 51 will control the lifting block 810 to move down. Under the action of the spring 64 and the weight of the slider 62, the slider 62 will continue to move down, and the hook holding portion 91 will also slide from the second stationary point 87 into the fourth channel 84, and continue to slide in the fourth channel 84 back to the first channel 81, and finally return to the initial position. At the same time, the slider 62 also returns to the initial position to facilitate the detection of the next group of liquid-cooled plates 3;

[0067] Continue to refer Fig.10 A fifth channel 85 is provided at the end of the third channel 83. The bottom height of the fifth channel 85 is lower than that of the third channel 83 and also forms a blocking step. After the hooking portion 91 enters the fifth channel 85 from the third channel 83, it cannot return to the third channel 83 from the fifth channel 85. A third stationary point 88 is provided at the position where the fifth channel 85 is connected to the third channel 83. The horizontal height position of the third stationary point 88 is consistent with the horizontal height position of the first stationary point 86.

[0068] The end of the fifth channel 85 is connected to the first channel 81, and a transition slope 89 is provided at the position where the fifth channel 85 is connected to the first channel 81. The highest position of the transition slope 89 is higher than the groove bottom height of the first channel 81 and forms a transition step, so that the hooking portion 91 is suitable for returning from the fifth channel 85 to the first channel 81, but when the hooking portion 91 slides in the first channel 81, it will not directly enter the fifth channel 85;

[0069] After the initial inspection of the liquid-cooled plate 3 is completed, the hook portion 91 stays at the second stationary point 87, indicating that the liquid-cooled plate 3 has no leakage. However, in order to make the airtightness test of the liquid-cooled plate more accurate, the staff can lift the handle 22 again, and the handle 22 moves up again to drive the slider 62 to move up, and the slider 62 moves up to drive the sleeve 7 to move up. At the same time, the slider 62 moves up to make the hook portion 91 move from the second stationary point 87 into the third channel 83 until it reaches the third stationary point 88. Since the horizontal height of the third stationary point 88 is consistent with the horizontal height of the first stationary point 86, the slider 62 moves to the position consistent with the initial upward movement at most. This process represents that the liquid-cooled plate 3 will take in air again;

[0070] When the staff lifts the handle 22 again, the handle 22 can be put down after a short time. If the value on the pressure test gauge 51 does not decrease with the second upward movement of the handle 22, it means that the liquid cooling plate 3 can bear the critical air pressure and the liquid cooling plate 3 is a good product. Otherwise, the liquid cooling plate 3 can withstand the standard air pressure and is tested as a good product. After the handle 22 is put down, due to the action of the spring 64 and the gravity of the slider 62, the slider 62 will continue to move down, and enter the fifth channel 85 from the third stationary point 88 after the second upward movement, and continue to slide in the fifth channel 85 across the transition slope 89 back to the first channel 81, and finally return to the initial position, and the sleeve 7 also returns to the initial position to facilitate the detection of the next group of liquid cooling plates.

[0071] Embodiment 3: In the above embodiment, the motion trajectory of the slider 62 is limited by the cooperation between the limit groove 8 and the hook 9, and the motion trajectory of the sleeve 7 is changed. After the standard test is completed, the liquid cooling plate 3 can be further tested for quality. However, during the test, the liquid cooling plate 3 is injected with high-pressure gas. If the high-pressure gas inside is directly released, the metal channel in the liquid cooling plate 3 may be damaged due to the excessive gas pressure and the impact of the instantaneous release.

[0072] To solve this problem, Figure 8 as well as Fig.10As shown, in this embodiment, the displacement of the air release valve 72 is smaller than the displacement of the negative pressure air nozzle 73, and a contact switch (not shown in the figure) for controlling the opening of the air release valve 72 is provided in the fifth channel 85. The contact switch is close to the transition slope 89, and the contact switch is connected to the PLC control system signal. When the hooking portion 91 slides in the fifth channel 85, it will pass through the contact switch, and the contact switch will control the air release valve 72 to open, so as to release the high-pressure gas in the sleeve 7, the second tube body 5 and the liquid cooling plate 3. When the high-pressure gas is discharged through the air release valve 72, since its displacement is smaller than that of the negative pressure air nozzle 73, the time required for its exhaust is longer than that of the exhaust through the negative pressure air nozzle 73, and then the high-pressure gas will be discharged at a relatively small and gentle speed, and there will be no instantaneous discharge to cause a large pressure impact, thereby reducing the possibility of internal damage to the liquid cooling plate 3 during exhaust.

[0073] Since the contact switch position is close to the transition slope 89, when the hook portion 91 has not moved to the contact switch position, the liquid cooling plate 3 is still in a pressure-maintaining state until the hook portion 91 contacts the contact switch, and then the high-pressure gas in the liquid cooling plate 3 is released. In this way, the liquid cooling plate 3 can maintain pressure for a longer time after the secondary gas injection, further improving the test results of the liquid cooling plate air tightness test;

[0074] It should be noted that when the hooking portion 91 slides out of the fourth channel 84 , it means that the liquid cooling plate 3 is unqualified. At this time, the air pressure in the second tube body 5 and the sleeve 7 is relatively low, and the high-pressure gas has partially leaked. The remaining part can be directly discharged through the negative pressure gas nozzle 73, and thus there is no need to set a contact switch in the fourth channel 84 .

[0075] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A liquid cooling plate testing tool, characterized in that: include: Base (1); A detection mechanism (2), the detection mechanism (2) being mounted on the base (1), the detection mechanism (2) comprising a support platform (21) fixedly mounted on the base (1), a placement groove being provided on the support platform (21), and a high-pressure bellows being fixedly mounted on the bottom of the support platform (21); A liquid cooling plate (3), the liquid cooling plate (3) being placed in the placement groove; A second tube body (5), the second tube body (5) being mounted on one side of the support platform (21), the bottom of the second tube body (5) extending to the bottom of the support platform (21), and a pressure test gauge (51) being mounted on one side of the second tube body (5) close to the liquid cooling plate (3); A test assembly (6), the test assembly (6) being installed inside the support platform (21), the test assembly (6) comprising a side plate (61) fixedly installed on one side of the support platform (21), the side plate (61) being provided with a side slide groove (63); A slider (62), the slider (62) being slidably mounted in the side slide groove (63), and a spring (64) being fixedly mounted between the slider (62) and the side slide groove (63); a sleeve (7), the sleeve (7) being slidably sleeved on a side of the second tube body (5) away from the liquid cooling plate (3), a connecting rod (65) being fixedly mounted between the sleeve (7) and the slider (62); a negative pressure air nozzle (73), the negative pressure air nozzle (73) being mounted on the surface of the sleeve (7), one side of the negative pressure air nozzle (73) being connected to a negative pressure box, an air inlet nozzle (74) being also mounted on the surface of the sleeve (7), one side of the air inlet nozzle (74) being connected to the high-pressure air box, and the air inlet nozzle (74) being located above the negative pressure air nozzle (73); An air inlet hole (52), the air inlet hole (52) being formed on the surface of the second tube body (5), the air inlet hole (52) being located above the air inlet nozzle (74); An auxiliary sliding member (53) is fixedly mounted on the surface of the second tube body (5), an auxiliary sliding groove (75) is provided in the sleeve (7), and the auxiliary sliding member (53) is slidably mounted in the auxiliary sliding groove (75); A sealing cylinder (71) is fixedly mounted on the bottom of the support platform (21), the sealing cylinder (71) is sleeved on the surface of the second tube body (5), the bottom of the sealing cylinder (71) is in contact with the top of the sleeve (7), and the sealing cylinder (71) is made of rubber; Wherein: in the initial state, the air inlet nozzle (74) is located near the sealing tube (71), the sleeve (7) is in the initial position, the auxiliary slide (53) is located at the highest position on the auxiliary slide groove (75), at this time, the upper half of the sleeve (7) is in contact with the outer wall of the second tube body (5), and the air inlet nozzle (74) extends to the side of the sleeve (7) and is in contact with the outer wall of the second tube body (5). If the high-pressure bellows is opened at this time, the air inlet nozzle (74) cannot inject high pressure into the sleeve (7). At the same time, the side of the negative pressure air nozzle (73) extending to the sleeve (7) is not blocked by the second tube body (5). If the negative pressure box is in the open state at this time, the negative pressure air nozzle (73) will generate a negative pressure effect to absorb the gas and impurities in the sleeve (7) and the second tube body (5); When the sleeve (7) is continuously moved upward and the auxiliary slide (53) is relatively moved to the bottom of the auxiliary slide groove (75), the air inlet nozzle (74) extends to one side of the sleeve (7) and coincides with the air inlet hole (52), and the negative pressure air nozzle (73) extends to one side of the sleeve (7) and fits with the outer wall of the second tube body (5). If the negative pressure box and the high pressure bellows are both in the open state at this time, since the negative pressure air nozzle (73) is blocked by the second tube body (5), and the air inlet nozzle (74) coincides with the air inlet hole (52), there is no negative pressure effect in the sleeve (7) and the second tube body (5) and high pressure is introduced.

2. A liquid cooling plate testing tool according to claim 1, characterized in that: A limiting groove (8) is provided on the surface of the sliding block (62); a hook (9) is movably mounted on the side plate (61); the hook (9) is located in the side sliding groove (63); the limiting groove (8) comprises a first channel (81) provided on the sliding block (62); one side of the hook (9) extends into the first channel (81) and forms a hook holding portion (91).

3. The liquid cooling plate testing tool according to claim 2, characterized in that: A second channel (82) is disposed at the end of the first channel (81), and a third channel (83) is disposed at the end of the second channel (82); the groove bottom height of the first channel (81) is higher than the groove bottom height of the second channel (82) and forms a blocking step; the groove bottom height of the third channel (83) is higher than the groove bottom height of the second channel (82) and also forms the blocking step; A first stationary point (86) is provided at a position where the first channel (81) communicates with the second channel (82), and a second stationary point (87) is provided at a position where the second channel (82) communicates with the third channel (83), wherein the horizontal height position of the second stationary point (87) is close to the horizontal height position of the first stationary point (86).

4. The liquid cooling plate testing tool according to claim 3, characterized in that: A fourth channel (84) is provided at the second stationary point (87); the bottom height of the fourth channel (84) is flush with the bottom height of the third channel (83); the end of the fourth channel (84) is connected to the first channel (81); a lifting block (810) is provided at the starting end of the fourth channel (84); a PLC control system is provided at the bottom of the support platform (21); and the lifting block (810) is connected to the pressure test gauge (51) by signal; A reset slope is provided at the connection point between the fourth channel (84) and the first channel (81), and the highest position of the reset slope is higher than the groove bottom height of the first channel (81) and also forms the blocking step.

5. The liquid cooling plate testing tool according to claim 4, characterized in that: A fifth channel (85) is provided at the end of the third channel (83), the bottom height of the fifth channel (85) is lower than the bottom height of the third channel (83) and also forms the blocking step, a third stagnation point (88) is provided at the connection between the fifth channel (85) and the third channel (83), and the level of the third stagnation point (88) is consistent with the level of the first stagnation point (86); The end of the fifth channel (85) is connected to the first channel (81), and a transition slope (89) is provided at the position where the fifth channel (85) is connected to the first channel (81), wherein the highest position of the transition slope (89) is higher than the groove bottom height of the first channel (81) and forms a transition step.

6. The liquid cooling plate testing tool according to claim 5, characterized in that: The base (1) is provided with a PLC control system, a gas relief valve (72) is installed at the bottom of the sleeve (7), the displacement of the gas relief valve (72) is smaller than the displacement of the negative pressure air nozzle (73), and a contact switch is provided in the fifth channel (85), and the contact switch is connected to the gas relief valve (72) by signal.

7. The liquid cooling plate testing tool according to claim 6, characterized in that: Sliding members (621) are fixedly mounted on both sides of the sliding block (62), and auxiliary sliding grooves (611) are opened on both sides of the side sliding grooves (63), and the sliding members (621) are slidably mounted in the auxiliary sliding grooves (611).

8. The liquid cooling plate testing tool according to claim 7, characterized in that: A lifting groove (23) is provided on one side of the side plate (61), a handle (22) is slidably mounted in the lifting groove (23), and one side of the handle (22) is fixedly connected to one side of the sliding block (62).

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