A leakage test mechanism of a liquid cooling plate

Abstract

This utility model relates to a leakage testing mechanism for liquid-cooled plates, comprising: a fixed frame; a movable frame; a first power source for driving the movable frame to slide relative to the fixed frame; a second power source; and a pressure head mounting frame with a pressure head assembly. The pressure head assembly includes a pressure head mounting rod, a pressure head, and a spring. The two ends of the spring are located between the bosses on the outer wall of the pressure head mounting frame and the pressure head mounting rod. The spring provides elastic cushioning when the pressure head mounting rod is pressed down. The pressure head is mounted on the end of the pressure head mounting rod away from the pressure head mounting frame. The pressure head has an air inlet hole, and the pressure head mounting rod has an air pipe connector that communicates with the air inlet hole to allow air intake. This leakage testing mechanism for liquid-cooled plates mainly solves the problem of automatically compatible leakage testing of liquid-cooled plates with different inlet and outlet positions, greatly improving production efficiency, reducing human error, and ensuring product quality consistency and reliability.

Description

Technical Field

[0001] This utility model relates to the field of testing device technology, and in particular to a leakage testing mechanism for a liquid cooling plate. Background Technology

[0002] Liquid cooling plates are high-efficiency thermal management components that utilize coolant as a heat transfer medium to indirectly transfer heat from heat-generating components to the cooling liquid enclosed in a circulation loop, thereby achieving rapid heat transfer and dissipation. To evaluate the mechanical properties and reliability of liquid cooling plates, performance and quality tests are typically required. Existing testing methods mainly include:

[0003] 1. Manual testing method: Operators manually inspect various parts of the liquid cooling plate for leaks. This method relies heavily on manual operation, which can lead to inconsistent testing standards, low efficiency, and a high risk of errors, ultimately affecting product quality.

[0004] 2. Semi-automatic testing equipment: This type of equipment incorporates basic mechanical devices and sensor technology, enabling it to perform simple automatic testing tasks. However, it typically requires frequent manual adjustments to accommodate the inlet and outlet positions of different models of liquid cooling plates, and its reliance on manual operation limits its efficiency and applicability.

[0005] 3. Fully automated optical inspection system: This system uses high-precision cameras and image processing technology to identify leaks, but it is expensive and complex to maintain, making it difficult to popularize among small and medium-sized manufacturing enterprises.

[0006] After analyzing existing methods for detecting leaks in liquid cooling plates, the following main drawbacks can be summarized:

[0007] 1. Lack of compatibility: Traditional leak testing equipment is designed for specific models of liquid-cooled plates, making it difficult to adapt to changes in the position and size of different inlet and outlet ports. This leads to the need for frequent replacement or adjustment of the testing equipment when dealing with diverse products, reducing production efficiency.

[0008] 2. Low level of automation: Existing methods still rely on manual operation, such as manually adjusting the position of the plug or detecting leaks. This semi-automated mode not only increases labor costs but may also affect the accuracy of test results due to human error.

[0009] 3. High cost and complex maintenance: Although some high-end testing systems use advanced optical testing technology, the equipment is expensive and requires complex maintenance, which is a considerable burden for small and medium-sized manufacturers. Utility Model Content

[0010] Therefore, the technical problem to be solved by this utility model is to overcome the fact that the existing technology for leak testing of liquid cooling plates is either complicated to operate or expensive.

[0011] To solve the above-mentioned technical problems, this utility model provides a leakage testing mechanism for a liquid-cooled plate, comprising: a fixed frame; a movable frame; a first power source mounted on the fixed frame, with its output end connected to the movable frame, the first power source being used to drive the movable frame to slide relative to the fixed frame; a second power source mounted on the movable frame; and a pressure head mounting frame connected to the second power source, the pressure head mounting frame having a pressure head assembly; wherein, the pressure head assembly includes a pressure head mounting rod, a pressure head, and a spring, the spring being fitted around the outside of the pressure head mounting rod, with both ends of the spring located between the bosses on the outer wall of the pressure head mounting frame and the pressure head mounting rod, the spring providing elastic cushioning when the pressure head mounting rod is pressed, the pressure head being mounted on the end of the pressure head mounting rod away from the pressure head mounting frame, the pressure head having an air inlet, and the pressure head mounting rod having an air pipe connector, the air pipe connector communicating with the air inlet to achieve air intake. The leakage testing mechanism for liquid-cooled plates of this utility model mainly solves the problem of automatically and compatiblely testing for leakage of liquid-cooled plates with different inlet and outlet positions, which greatly improves production efficiency, reduces human error, and ensures the consistency and reliability of product quality.

[0012] In one embodiment of this utility model, an annular boss is provided on the outer wall of the pressure head mounting rod, and one end of the spring abuts against the annular boss.

[0013] In one embodiment of this utility model, the pressure head mounting bracket is provided with a first through hole, and the end of the pressure head mounting rod away from the pressure head passes through the first through hole.

[0014] In one embodiment of this utility model, a limiting block is connected to the end of the pressure head mounting rod away from the pressure head, and the limiting block is used to limit the pressure head mounting rod on the pressure head mounting frame.

[0015] In one embodiment of the present invention, a first conical surface is provided on the inner wall of the first through hole, and a second conical surface is provided on the outer wall of the limiting block, the second conical surface being able to contact the first conical surface.

[0016] In one embodiment of this utility model, the end of the pressure head mounting rod opposite to the pressure head is provided with a first groove, the pressure head is provided with a first protrusion, the first protrusion is disposed in the first groove, and the air inlet passes through the first protrusion.

[0017] In one embodiment of this utility model, the pressure head mounting rod is provided with a second groove communicating with the air inlet hole, the pressure head mounting rod is provided with an air inlet channel, the air inlet channel, the second groove and the air inlet hole are connected, and the air pipe connector is connected with the air inlet channel.

[0018] In one embodiment of this utility model, the pressure head is made of polyurethane.

[0019] In one embodiment of this utility model, the movable frame is provided with a guide rail, the fixed frame is provided with a slider, the guide rail is disposed on the slider, and the guide rail can slide along the slider.

[0020] In one embodiment of this utility model, both the first power source and the second power source are cylinders.

[0021] The leakage testing mechanism for the liquid-cooled plate of this invention has the following advantages compared with the prior art:

[0022] Achieving high compatibility: By employing a cylinder-driven planar plug, a testing system was designed that can automatically adjust to accommodate different inlet and outlet positions and sizes of liquid cooling plates. This flexibility allows a single device to meet the needs of multiple products without frequent replacements or adjustments.

[0023] Improve automation: Fully automate the leak detection process, from adjusting the position of the plug to pressure testing, all of which are done by machines, reducing manual intervention and improving detection efficiency and consistency of results.

[0024] 3. Reduced costs and maintenance complexity: Testing with ordinary air avoids the expense of special gases. At the same time, the simplified equipment structure and control system make it easier to maintain and operate, suitable for businesses of all sizes. Attached Figure Description

[0025] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0026] Figure 1 This is a schematic diagram of the leakage testing mechanism for the liquid cooling plate in a preferred embodiment of the present invention. Figure 1 ;

[0027] Figure 2 This is a schematic diagram of the leakage testing mechanism for the liquid cooling plate in a preferred embodiment of the present invention. Figure 2 ;

[0028] Figure 3 This is a partial structural schematic diagram of the leakage testing mechanism for the liquid cooling plate in a preferred embodiment of the present invention;

[0029] Figure 4 This is a front view of the leakage testing mechanism for the liquid cooling plate in a preferred embodiment of the present invention;

[0030] Figure 5 This is a cross-sectional view of the pressure head assembly in a preferred embodiment of the present invention.

[0031] Explanation of reference numerals in the accompanying drawings: Fixed frame 1, slider 11, first buffer 12, second buffer 13, first proximity switch 14, second proximity switch 15, movable frame 2, guide rail 21, first limiting plate 22, second limiting plate 23, first power source 3, second power source 4, pressure head mounting bracket 5, first through hole 51, first conical surface 511, pressure head assembly 6, pressure head mounting rod 61, annular boss 611, limiting block 612, second conical surface 613, first groove 614, air inlet channel 615, second groove 616, pressure head 62, air inlet 621, first protrusion 622, spring 63, air pipe connector 64. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0033] Reference Figure 1-3 As shown, the leakage testing mechanism for the liquid-cooled plate of this utility model includes: a fixed frame 1; a movable frame 2; a first power source 3, which is installed on the fixed frame 1 and the output end of the first power source 3 is connected to the movable frame 2, and the first power source 3 is used to drive the movable frame 2 to slide relative to the fixed frame 1; a second power source 4, which is installed on the movable frame 2; and a pressure head mounting frame 5, which is connected to the second power source 4, and the pressure head mounting frame 5 is provided with a pressure head assembly 6.

[0034] Reference Figure 4 As shown, the pressure head assembly 6 includes a pressure head mounting rod 61, a pressure head 62, and a spring 63. The spring 63 is fitted onto the outside of the pressure head mounting rod 61, and its two ends are located between the bosses on the outer wall of the pressure head mounting bracket 5 and the pressure head mounting rod 61. The spring 63 provides elastic cushioning when the pressure head mounting rod 61 is pressed. The pressure head 62 is mounted on the end of the pressure head mounting rod 61 away from the pressure head mounting bracket 5. The pressure head 62 is provided with an air inlet 621, and the pressure head mounting rod 61 is provided with an air pipe connector 64, which communicates with the air inlet 621 to allow air intake. Preferably, the pressure head 62 is made of polyurethane, and the end face of the pressure head 62 that contacts the part is flat. Using polyurethane (PU) material can both seal the inlet and outlet and effectively prevent excessive pressure from damaging the product.

[0035] Reference Figure 5As shown, an annular boss 611 is provided on the outer wall of the pressure head mounting rod 61, and one end of the spring 63 abuts against the annular boss 611. The other end of the spring 63 abuts against the lower end of the pressure head mounting bracket 5. After the second power source 4 drives the pressure head 62 to contact the part to be tested, when the applied pressure is greater than the elastic force of the spring 63, the spring 63 is compressed, and the pressure head mounting rod 61 is retracted. After the pressure head 62 separates from the part to be tested, since one end of the spring 63 is restricted by the pressure head mounting bracket 5, the pressure head mounting rod 61 returns to its initial position under the action of the elastic force of the spring 63.

[0036] Reference Figure 5 As shown, the pressure head mounting bracket 5 has a first through hole 51, and the end of the pressure head mounting rod 61 away from the pressure head 62 passes through the first through hole 51. A limiting block 612 is connected to the end of the pressure head mounting rod 61 away from the pressure head 62, and the limiting block 612 is used to limit the pressure head mounting rod 61 on the pressure head mounting bracket 5. A first conical surface 511 is provided on the inner wall of the first through hole 51, and a second conical surface 613 is provided on the outer wall of the limiting block 612, the second conical surface 613 being able to contact the first conical surface 511. The first conical surface 511 is flared outwards towards the limiting block 612, and the end of the second conical surface 613 connected to the pressure head mounting rod 61 is a small conical end. In this way, when the limiting block 612 enters the first through hole 51, the small end of the first through hole 51 can easily enter the flared opening formed by the first conical surface 511 of the first through hole 51 until the second conical surface 613 contacts the first conical surface 511, which facilitates the entry of the limiting block 612 into the first through hole 51 and realizes the guidance of the pressure head mounting rod 61 during its movement.

[0037] The connection structure between the pressure head mounting rod 61 and the pressure head 62 is as follows: the end of the pressure head mounting rod 61 opposite to the pressure head 62 is provided with a first groove 614, the pressure head 62 is provided with a first protrusion 622, the first protrusion 622 is disposed in the first groove 614, and the air inlet 621 passes through the first protrusion 622.

[0038] Reference Figure 5 As shown, the pressure head mounting rod 61 is provided with a second groove 616 that communicates with the air inlet 621, and the pressure head mounting rod 61 is provided with an air inlet channel 615. The air inlet channel 615, the second groove 616 and the air inlet 621 are connected, and the air pipe connector 64 is connected to the air inlet channel 615.

[0039] Reference Figure 1 , 2 As shown, the movable frame 2 is provided with a guide rail 21, and the fixed frame 1 is provided with a slider 11. The guide rail 21 is mounted on the slider 11 and can slide along the slider 11.

[0040] Furthermore, both the first power source 3 and the second power source 4 are cylinders. Using standard cylinders as the drive enables automatic control of the forward and backward direction of the pressure head assembly 6. With buffering and hard limit switches, it can achieve a stopping function when in position. This mechanism allows for compatibility with positional deviations of the liquid cooling plates in different modules. This simplifies the shape of each part, making it easier to process and control its dimensions. It also reduces the difficulty of assembly and debugging.

[0041] The automated positioning technology employing the cylinder-driven pressure head assembly 6 enables the equipment to quickly adapt to liquid-cooled plates of different shapes, sizes, and models. This improves the equipment's versatility and applicability, and reduces adjustment time and costs associated with changing test objects.

[0042] Reference Figure 1 As shown, the movable frame 2 is provided with a first limiting plate 22 and a second limiting plate 23. The fixed frame 1 is provided with a first buffer 12 opposite to the first limiting plate 22 and a second buffer 13 opposite to the second limiting plate 23. The first limiting plate 22 and the second limiting plate 23 respectively buffer and limit the movement of the output end of the first power source 3 at the two extreme positions.

[0043] Reference Figure 1 As shown, the fixed frame 1 is also provided with a first proximity switch 14 and a second proximity switch 15, which are used to sense the position of the moving frame 2.

[0044] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A leakage testing mechanism for a liquid-cooled plate, characterized in that, include: Fixed frame; Mobile frame; A first power source is installed on a fixed frame and its output end is connected to a movable frame. The first power source is used to drive the movable frame to slide relative to the fixed frame. The second power source is installed on the mobile frame; A pressure head mounting bracket is connected to a second power source, and a pressure head assembly is provided on the pressure head mounting bracket; The pressure head assembly includes a pressure head mounting rod, a pressure head, and a spring. The spring is fitted onto the outside of the pressure head mounting rod, and both ends of the spring are located between the bosses on the outer wall of the pressure head mounting bracket and the pressure head mounting rod. The spring provides elastic cushioning when the pressure head mounting rod is pressed. The pressure head is mounted on the end of the pressure head mounting rod away from the pressure head mounting bracket. The pressure head is provided with an air inlet. The pressure head mounting rod is provided with an air pipe connector, and the air pipe connector communicates with the air inlet to allow air intake.

2. The leakage testing mechanism for the liquid-cooled plate according to claim 1, characterized in that: The outer wall of the pressure head mounting rod is provided with an annular boss, and one end of the spring abuts against the annular boss.

3. The leakage testing mechanism for the liquid-cooled plate according to claim 1, characterized in that: The pressure head mounting bracket is provided with a first through hole, and the end of the pressure head mounting rod away from the pressure head passes through the first through hole.

4. The leakage testing mechanism for the liquid-cooled plate according to claim 3, characterized in that: The end of the pressure head mounting rod away from the pressure head is connected to a limiting block, which is used to limit the pressure head mounting rod on the pressure head mounting frame.

5. The leakage testing mechanism for the liquid-cooled plate according to claim 4, characterized in that: The inner wall of the first through hole is provided with a first conical surface, and the outer wall of the limiting block is provided with a second conical surface, which can contact the first conical surface.

6. The leakage testing mechanism for the liquid-cooled plate according to claim 1, characterized in that: The end of the pressure head mounting rod opposite to the pressure head is provided with a first groove, and the pressure head is provided with a first protrusion. The first protrusion is disposed in the first groove, and the air inlet passes through the first protrusion.

7. The leakage testing mechanism for the liquid-cooled plate according to claim 6, characterized in that: The pressure head mounting rod is provided with a second groove that communicates with the air inlet hole. The pressure head mounting rod is provided with an air inlet channel. The air inlet channel, the second groove and the air inlet hole are connected. The air pipe connector is connected to the air inlet channel.

8. The leakage testing mechanism for the liquid-cooled plate according to claim 1, characterized in that: The pressure head is made of polyurethane.

9. The leakage testing mechanism for the liquid cooling plate according to claim 1, characterized in that: The movable frame is equipped with a guide rail, and the fixed frame is equipped with a slider. The guide rail is mounted on the slider and can slide along the slider.

10. The leakage testing mechanism for the liquid-cooled plate according to claim 1, characterized in that: Both the first power source and the second power source are cylinders.

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