Liquid cooling plate bearing test platform

Abstract

The invention provides a liquid cooling plate load-bearing test platform, relates to the technical field of performance test, and aims to solve the technical problems that the pressure is easy to suddenly change in the pressure applying process in the existing liquid cooling plate load-bearing test, and the pressure-bearing value of a deformation critical point of a liquid cooling plate cannot be accurately captured. The platform comprises a base, a vertical rod, a mounting plate and a pressing plate driven by a hydraulic cylinder, a test board is arranged above the base through a bottom plate, a pressure sensor is arranged between the test board and the bottom plate, a distance sensor for detecting the pressing distance is arranged on the surface of the test board, and an elastic assembly is arranged between the bottom plate and the base. Through an elastic assembly composed of multiple groups of movable plates and series springs, the downward movement displacement of the bottom plate can be amplified, the pressure value in the pressure applying process is stable and does not change suddenly, the critical pressure bearing value when the liquid cooling plate deforms is accurately captured, meanwhile, the device is adaptive to liquid cooling plates of multiple specifications, leaked cooling liquid can be effectively collected, test data are accurate and reliable, and the test efficiency is improved. The device is suitable for the load-bearing performance and pressure-resistant leakage test of liquid cooling plates in the fields of new energy automobiles, energy storage equipment, servers and the like.

Description

Technical Field

[0001] This invention relates to the field of performance testing technology, and more specifically, to a liquid-cooled plate load-bearing testing platform. Background Technology

[0002] With the rapid development of industries such as new energy vehicles, big data centers, and energy storage power stations, liquid cooling technology has become the mainstream heat dissipation solution for high heat flux density equipment due to its core advantages such as high heat dissipation efficiency, uniform temperature control, and low noise. As the core load-bearing component of a liquid cooling system, the structural strength, load-bearing capacity, and sealing reliability of the liquid cooling plate directly determine the operational safety and service life of the cooling system. Especially in the field of new energy vehicles, the liquid cooling plate for power batteries needs to withstand the static load of the battery pack and the dynamic impact during vehicle operation for extended periods. If the load-bearing capacity is insufficient, problems such as deformation of the liquid cooling plate, weld cracking, and coolant leakage can easily occur, leading to serious safety accidents such as battery thermal runaway and short circuits. Therefore, throughout the entire manufacturing process of liquid cooling plates, it is essential to conduct comprehensive and accurate testing of their pressure resistance and deformation characteristics using a load-bearing testing platform to ensure that the product meets usage standards.

[0003] Existing liquid-cooled plate load-bearing testing platforms suffer from a series of intractable technical challenges in practical applications: First, they cannot accurately capture the critical pressure value at the deformation threshold of the liquid-cooled plate. Most existing testing platforms employ a rigid loading method using hydraulic cylinders for direct pressure application. Even a slight downward movement of the hydraulic cylinder can cause a sudden change in pressure, making it impossible to achieve stable linear pressure loading. This makes it difficult to accurately capture the critical pressure value at the point where the liquid-cooled plate transitions from elastic to plastic deformation, and the test results cannot truly reflect the actual load-bearing limit and deformation characteristics of the liquid-cooled plate. Second, the equipment has poor adaptability; different application scenarios require liquid-cooled plates with varying sizes and specifications. The traditional testing platform has several drawbacks. Firstly, its clamping and fixing structure is mostly fixed, requiring the replacement of specialized clamps when testing liquid cooling plates of different sizes. This is cumbersome, inefficient, and fails to meet the flexible testing needs of liquid cooling plates of various sizes. Secondly, it lacks leakage protection and collection structures. During pressure testing, if the liquid cooling plate exceeds its pressure limit, coolant leakage will occur. Traditional testing platforms do not have a dedicated leakage collection structure, allowing leaked coolant to flow directly onto the test platform surface and electrical components. This not only causes equipment corrosion and contamination but also poses safety hazards such as electrical short circuits and personnel slipping.

[0004] To address the aforementioned industry pain points, there is an urgent need to develop a liquid-cooled plate load-bearing testing platform that can achieve stable linear pressure loading, has displacement amplification capabilities, strong adaptability, and good protection, thereby fundamentally solving the core problems of low testing accuracy and poor data reliability of existing equipment. Summary of the Invention

[0005] The present invention aims to solve the technical problems in existing liquid cooling plate load-bearing tests, such as the pressure change during the pressurization process being easy to change suddenly, the inability to accurately capture the pressure value at the critical point of liquid cooling plate deformation, and the low accuracy of detecting small deformations.

[0006] To address the aforementioned problems, this invention provides a liquid-cooled plate load-bearing testing platform, comprising a base, a vertical pole fixedly mounted on the upper surface of the base, and a mounting plate fixedly mounted on the top of the vertical pole. A hydraulic cylinder is fixedly mounted through the mounting plate, and a pressure plate is fixedly mounted on the telescopic end of the hydraulic cylinder. A base plate is provided above the base, and a test platform is provided above the base plate. A pressure sensor is provided between the test platform and the base plate, and the pressure plate is located directly above the test platform. The platform further includes: an elastic component disposed between the base plate and the base, used to provide elastic support to the base plate and amplify the downward displacement of the base plate when the liquid-cooled plate is under pressure; a distance sensor fixedly mounted on the upper surface of the test platform, used to detect the distance between the pressure plate and the test platform; and a displacement sensor, wherein the bottom of the pressure plate has grooves arranged in a rectangular array, and the displacement sensor is disposed in the grooves.

[0007] The liquid-cooled plate load-bearing testing platform provided by this invention has, but is not limited to, the following beneficial effects compared with the prior art: To address the technical problems in existing liquid-cooled plate load-bearing tests, such as sudden pressure changes during the pressurization process, inability to accurately capture the critical pressure value of the liquid-cooled plate deformation, and low accuracy in detecting minute deformations, this platform uses a high-strength carbon steel welded rectangular base. Four uprights are vertically welded and fixed at the four corners of the upper surface of the base. A horizontal mounting plate is welded and fixed to the top of each upright. The mounting plate is used to fix a hydraulic cylinder through a flange and high-strength bolts. The extension and retraction ends of the hydraulic cylinders are vertically downward. A horizontal pressure plate is fixed to the end of the extension and retraction ends of the hydraulic cylinders using bolts. The size of the pressure plate covers that of conventional liquid-cooled plates. The maximum bearing surface of the plate; a horizontal base plate is set directly above the base, and a test platform is set parallel to the base plate above the base plate. A high-precision pressure sensor is placed between the test platform and the base plate. The central axis of the pressure plate coincides with the central axis of the test platform, ensuring that the pressure plate is directly above the test platform; an elastic component is set between the base plate and the base, with the top end of the elastic component fixedly connected to the lower surface of the base plate and the bottom end fixedly connected to the upper surface of the base; a high-precision laser distance sensor is fixedly installed at the edge of the upper surface of the test platform with bolts, with the detection end of the distance sensor pointing vertically upwards, directly facing the pressure. The lower surface of the plate is used to detect the vertical distance between the pressure plate and the test bench in real time. During testing, the liquid-cooled plate to be tested is placed stably on the upper surface of the test bench. The hydraulic cylinder is activated, and its extension end moves the pressure plate downwards at a constant speed until the lower surface of the pressure plate is in close contact with the upper surface of the liquid-cooled plate. The hydraulic cylinder continues to apply the set pressure load downwards. Under the pressure, the liquid-cooled plate undergoes a slight deformation, and the pressure is transmitted to the test bench through the liquid-cooled plate. The test bench then evenly transmits the pressure to the pressure sensor, which collects the pressure data in real time and transmits it to the external control system. The sensor detects the distance change between the pressure plate and the test platform in real time and calculates the deformation of the liquid cooling plate by measuring the distance change. When the test platform is pressed, it drives the base plate to move downward synchronously. When the base plate moves downward, it compresses the elastic component. The elastic component amplifies the small downward displacement of the base plate through its structural characteristics. At the same time, through the elastic buffer of the elastic component, the pressure value detected by the pressure sensor during the hydraulic cylinder pressurization process rises smoothly and linearly without sudden changes. This allows for accurate capture of the critical pressure value that the liquid cooling plate withstands when it deforms, achieving accurate detection of the load-bearing performance of the liquid cooling plate and resulting in better performance.

[0008] Furthermore, the elastic component includes movable plates that are equidistantly sleeved on the outside of the upright. Springs arranged in a rectangular array are provided between adjacent movable plates and between the movable plate at the bottom and the base. A support rod is fixedly installed on the surface of the movable plate at the top, and the top end of the support rod is fixedly connected to the lower surface of the base plate.

[0009] Furthermore, it also includes a clamping assembly, which is disposed on the outside of the test stage and is used to clamp and fix the liquid cooling plate to be tested to the surface of the test stage.

[0010] Furthermore, the clamping assembly includes an electric telescopic rod disposed around the test bench. The telescopic end of the electric telescopic rod is fixedly connected to the side wall of the test bench. A fixing plate is fixedly installed on the outer wall of the electric telescopic rod. A connecting plate is fixedly installed on the side of the fixing plate near the test bench. A clamping plate is fixedly installed at the end of the connecting plate. A vertical plate is fixedly installed on the upper surface of the test bench, and the clamping plate penetrates through the vertical plate.

[0011] Furthermore, a rubber pad is fixedly installed at the end of the clamping plate.

[0012] Furthermore, it also includes a drainage assembly, which is installed in the test bench and is used to collect the coolant leaking from the liquid cooling plate during the test.

[0013] Furthermore, the drain assembly includes a placement groove on the upper surface of the test bench, and the surface of the placement groove has drain holes distributed in a rectangular array. The test bench is also equipped with a liquid collection unit for collecting the coolant discharged from the drain holes.

[0014] Furthermore, the liquid collection unit includes a liquid collection cavity formed in the test platform, the bottom end of the drain hole is connected to the liquid collection cavity, and a drain pipe connected to the liquid collection cavity is fixedly installed at the bottom of the test platform.

[0015] Furthermore, a fixed cylinder is fixedly installed on the upper surface of the base plate, and the pressure sensor is located in the fixed cylinder. A limit sleeve is fixedly installed at the bottom of the test platform, and the bottom of the limit sleeve is fitted into the fixed cylinder.

[0016] Furthermore, the inner top of the fixed cylinder and the outer bottom of the limiting sleeve are both provided with rounded chamfers. Attached Figure Description

[0017] Figure 1 This is a first-view structural schematic diagram of a liquid-cooled plate load-bearing testing platform according to an embodiment of the present invention; Figure 2 This is a second-view structural schematic diagram of a liquid-cooled plate load-bearing testing platform according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the test bench in a liquid-cooled plate load-bearing test platform according to an embodiment of the present invention; Figure 4 for Figure 3 Enlarged structural diagram at point A in the diagram; Figure 5 This is a half-section first-view structural diagram of the test bench in a liquid-cooled plate load-bearing test platform according to an embodiment of the present invention. Figure 6 This is a half-section second-view structural diagram of the test platform in a liquid-cooled plate load-bearing test platform according to an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1. Base; 11. Upright pole; 12. Mounting plate; 13. Hydraulic cylinder; 14. Pressure plate; 2. Base plate; 3. Pressure sensor; 31. Limit sleeve; 32. Fixing cylinder; 4. Test platform; 5. Distance sensor; 6. Clamping assembly; 61. Electric telescopic rod; 62. Fixing plate; 63. Connecting plate; 64. Upright plate; 65. Clamping plate; 66. Rubber pad; 7. Drainage assembly; 71. Placement slot; 72. Drainage hole; 73. Collection chamber; 74. Drainage pipe; 8. Elastic assembly; 81. Support rod; 82. Movable plate; 83. Spring; 9. Displacement sensor. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0020] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the specification of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," etc., in the specification, claims, and accompanying drawings of this application are open-ended terms. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but is not limited to having only these one or more elements. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] Furthermore, in the attached diagram, the X-axis represents the horizontal direction, that is, the left and right position, and the positive direction of the X-axis (that is, the direction the arrow points to) represents the right, and the negative direction of the X-axis (that is, the direction opposite to the positive direction of the X-axis) represents the left; in the attached diagram, the Y-axis represents the vertical direction, that is, the front and back position, and the positive direction of the Y-axis (that is, the direction the arrow points to) represents the front, and the negative direction of the Y-axis (that is, the direction opposite to the positive direction of the Y-axis) represents the back; in the attached diagram, the Z-axis represents the vertical direction, that is, the up and down position, and the positive direction of the Z-axis (that is, the direction the arrow points to) represents the up, and the negative direction of the Z-axis (that is, the direction opposite to the positive direction of the Z-axis) represents the down.

[0023] It should also be noted that the aforementioned X-axis, Y-axis and Z-axis are used only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, parts, or groups of features, integers, steps, or parts.

[0026] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0027] See Figures 1-6An embodiment of the present invention provides a liquid-cooled plate load-bearing testing platform, comprising a base 1, a vertical rod 11 fixedly mounted on the upper surface of the base 1, and a mounting plate 12 fixedly mounted on the top of the vertical rod 11. A hydraulic cylinder 13 is fixedly mounted through the mounting plate 12, and a pressure plate 14 is fixedly mounted on the telescopic end of the hydraulic cylinder 13. A base plate 2 is provided above the base 1, and a test platform 4 is provided above the base plate 2. A pressure sensor 3 is provided between the test platform 4 and the base plate 2, and the pressure plate 14 is located directly above the test platform 4. The platform further comprises: an elastic component 8, which is disposed between the base plate 2 and the base 1, for providing elastic support to the base plate 2 and amplifying the downward displacement of the base plate 2 when the liquid-cooled plate is under pressure; a distance sensor 5, which is fixedly disposed on the upper surface of the test platform 4, for detecting the distance between the pressure plate 14 and the test platform 4; and a displacement sensor 9, in which the bottom of the pressure plate 14 has grooves arranged in a rectangular array, and the displacement sensor 9 is disposed in the grooves.

[0028] In this embodiment, addressing the technical problems of sudden pressure changes during the pressure application process in existing liquid-cooled plate load-bearing tests, the inability to accurately capture the critical pressure value of liquid-cooled plate deformation, and the low accuracy of detecting minute deformations, this platform uses a high-strength carbon steel welded rectangular base 1. Four uprights 11 are vertically welded and fixed at the four corners of the upper surface of the base 1. A horizontal mounting plate 12 is welded and fixed to the top of the uprights 11. The mounting plate 12 is fixed to a hydraulic cylinder 13 through a flange and high-strength bolts. The telescopic end of the hydraulic cylinder 13 is set vertically downwards. A horizontal pressure plate 14 is bolted and fixedly installed. The size of the pressure plate 14 covers the maximum pressure-bearing surface of a conventional liquid cooling plate. A horizontal base plate 2 is set directly above the base 1. A test platform 4 is set parallel to the base plate 2. A high-precision pressure sensor 3 is placed between the test platform 4 and the base plate 2. The central axis of the pressure plate 14 coincides with the central axis of the test platform 4, ensuring that the pressure plate 14 is directly above the test platform 4. A spring assembly 8 is set between the base plate 2 and the base 1. The top end of the spring assembly 8 is fixedly connected to the lower surface of the base plate 2, and the bottom end is fixed to the base 1. The upper surface is fixedly connected; a high-precision laser distance sensor 5 is fixedly installed at the edge of the upper surface of the test platform 4 by bolts. The detection end of the distance sensor 5 is vertically upward, facing the lower surface of the pressure plate 14, and is used to detect the vertical distance between the pressure plate 14 and the test platform 4 in real time; a rectangular array of grooves is opened at the bottom of the pressure plate 14, and a displacement sensor 9 is set in the grooves to detect the flatness of the liquid cooling plate; the flatness of the liquid cooling plate is a core prerequisite factor affecting its actual load-bearing capacity and the accuracy of the test results: deviations in the flatness of the plate will lead to Poor surface contact between the liquid cooling plate and the pressure plate leads to uneven stress distribution due to localized point and line contact. During the pressure application process, stress concentrates at the contact points, causing the critical bearing capacity obtained in the test to be far lower than the actual design load-bearing limit of the liquid cooling plate. It also prematurely induces localized deformation and weld cracking, failing to accurately reflect the overall load-bearing performance of the liquid cooling plate. During the test, a pre-test of the flatness of the liquid cooling plate to be tested is performed: the liquid cooling plate is placed stably on the upper surface of the test platform 4, and the hydraulic cylinder 13 is activated to drive the pressure plate 14 downwards at a uniform speed until it is 0.5 meters above the upper surface of the liquid cooling plate.A 5-1mm detection gap is used. Multiple sets of displacement sensors 9, arrayed on the lower surface of the pressure plate 14, synchronously collect the vertical distance between different points on the surface of the liquid-cooled plate and the lower surface of the pressure plate. The flatness deviation of the liquid-cooled plate is calculated by the distance difference between multiple points, thus completing the quantitative detection of the plate flatness. When the flatness deviation exceeds the allowable range of the test standard, the liquid-cooled plate substrate is directly judged to be unqualified, and the subsequent load-bearing test is terminated. When the flatness deviation is within the allowable range, the initial flatness data is recorded for correction of the subsequent pressure deformation data before entering the formal test process. The liquid-cooled plate to be tested is placed stably on the upper surface of the test bench 4. The hydraulic cylinder 13 is activated. The telescopic end of the hydraulic cylinder 13 drives the pressure plate 14 to move downward at a uniform speed until the lower surface of the pressure plate 14 is in close contact with the upper surface of the liquid-cooled plate. The hydraulic cylinder 13 continues to apply the set pressure load downward. The liquid-cooled plate undergoes slight deformation under the pressure, and at the same time, the pressure... Force is transmitted to the test bench 4 via the liquid cooling plate. The test bench 4 evenly transmits the pressure to the pressure sensor 3, which collects pressure data in real time and transmits it to the external control system. The distance sensor 5 detects the distance change between the pressure plate 14 and the test bench 4 in real time. Combined with the initial flatness data of the plate obtained from pre-detection, the distance error caused by the initial flatness deviation is eliminated, and the true deformation of the liquid cooling plate under pressure is accurately calculated. Furthermore, after the test bench 4 is pressed, it drives the base plate 2 to move downwards synchronously. When the base plate 2 moves downwards, it compresses the elastic component 8. The elastic component 8, through its structural characteristics, amplifies the small downward displacement of the base plate 2. Simultaneously, through the elastic buffering of the elastic component 8, the pressure value detected by the pressure sensor 3 during the pressure application process of the hydraulic cylinder 13 rises smoothly and linearly without sudden changes. This allows for accurate capture of the critical pressure value that the liquid cooling plate withstands when it deforms, achieving accurate detection of the load-bearing performance of the liquid cooling plate and resulting in better performance.

[0029] Optional, please refer to Figure 1 and Figure 2 The elastic component 8 includes movable plates 82 that are equidistantly sleeved on the outside of the upright 11. Springs 83 arranged in a rectangular array are provided between adjacent movable plates 82 and between the movable plate 82 at the bottom and the base 1. A support rod 81 is fixedly installed on the surface of the movable plate 82 at the top. The top end of the support rod 81 is fixedly connected to the lower surface of the base plate 2.

[0030] In this embodiment, four horizontal movable plates 82 are equidistantly fitted onto the outer sides of the four uprights 11. Sliding holes adapted to the outer diameter of the uprights 11 are provided at the four corners of each movable plate 82. The movable plates 82 can slide freely along the axial direction of the uprights 11. The spacing between adjacent movable plates 82 remains consistent, and the spacing between the bottom movable plate 82 and the upper surface of the base 1 is the same as the spacing between adjacent movable plates 82. Cylindrical helical compression springs 83 arranged in a 3×3 rectangular array are provided between adjacent movable plates 82 and between the bottom movable plate 82 and the base 1. The two ends of each spring 83 are fixedly connected to the corresponding movable plate 82 and the base 1 respectively through spring seats. The top movable plate 82 is vertically welded and fixed at its four corners. Four support rods 81 are connected at their top ends to the lower surface of the base plate 2 by high-strength bolts, ensuring that the axial force of the support rods 81 is evenly transmitted to the base plate 2. When the test platform 4 moves the base plate 2 downward, the base plate 2 drives the top movable plate 82 to slide downward along the upright 11 via the support rods 81. The top movable plate 82 compresses the spring 83 below it, and the spring 83 undergoes compression deformation, transmitting the pressure to the middle movable plate 82. The middle movable plate 82 slides downward synchronously and compresses the spring 83 below it. Finally, the bottom movable plate 82 compresses the spring 83 between itself and the base 1. Since multiple sets of springs 83 form a series structure through the movable plates 82, the total downward movement of the base plate 2 is equal to the compression deformation of the four sets of springs 83. The sum of these quantities amplifies the displacement, ensuring a lower pressure variation range for the same displacement. This makes it easier for pressure sensor 3 to accurately capture the pressure borne by the liquid cooling plate when it undergoes minor deformation. Simultaneously, the elastic buffering effect of the series springs 83 prevents significant pressure fluctuations when the hydraulic cylinder 13 moves the pressure plate 14 downwards to apply pressure, maintaining a linear and stable increase. This allows for accurate recording of the critical pressure value borne by the liquid cooling plate when it deforms under pressure. After the test, the hydraulic cylinder 13 moves the pressure plate 14 upwards to reset, and the rebound force of the springs 83 synchronously resets the movable plate 82, the base plate 2, and the test bench 4, awaiting the next test. Through multiple sets of movable plates 82 and series springs... The structure of the series springs 83 achieves linear amplification of displacement, solving the industry pain point of difficulty in detecting minute deformations of the liquid cooling plate; the elastic buffer of the series springs 83 enables linear and stable pressure loading, completely avoiding the problem of sudden pressure changes during the pressurization process, and can accurately capture the pressure value at the critical point of liquid cooling plate deformation, greatly improving the authenticity and reliability of test data; the rectangular array of springs 83 ensures uniform force on the base plate 2 and the movable plate 82, and under the limiting action of the upright 11, it ensures no tilting or jamming during the downward movement, further improving the stability of the test; the rebound characteristics of the springs 83 enable the automatic reset of the test platform 4, eliminating the need for an additional reset mechanism, simplifying the equipment structure and improving test efficiency.

[0031] Optional, please refer to Figure 3 and Figure 4It also includes a clamping component 6, which is disposed on the outside of the test stage 4 and is used to clamp and fix the liquid cooling plate to be tested to the surface of the test stage 4.

[0032] In this embodiment, four sets of clamping components 6 are arranged around the test platform 4. The four sets of clamping components 6 correspond to the front, back, left, and right directions of the test platform 4, respectively. The fixed ends of the clamping components 6 are fixedly connected to the side walls of the test platform 4, and the clamping ends of the clamping components 6 face the center of the test platform 4. They can be extended and retracted in the horizontal direction to clamp and fix the liquid cooling plates of different sizes to be tested at the center of the upper surface of the test platform 4. After the liquid cooling plate to be tested is placed on the surface of the test platform 4, the four sets of clamping components 6 are activated. The clamping ends of the clamping components 6 move synchronously towards the center of the test platform 4 until the clamping ends are tightly attached to the side walls of the liquid cooling plate, and the liquid cooling plate is firmly fixed to the surface of the test platform 4 from four directions to prevent the liquid cooling plate from sliding or shifting during the test. After the test is completed, the clamping ends of the clamping components 6 move away from the center of the test platform 4 to release the liquid cooling plate, and the unloading is completed.

[0033] Optional, please refer to Figure 3 and Figure 4 The clamping assembly 6 includes an electric telescopic rod 61 disposed around the test platform 4. The telescopic end of the electric telescopic rod 61 is fixedly connected to the side wall of the test platform 4. A fixing plate 62 is fixedly installed on the outer wall of the electric telescopic rod 61. A connecting plate 63 is fixedly installed on the side of the fixing plate 62 near the test platform 4. A clamping plate 65 is fixedly installed at the end of the connecting plate 63. A vertical plate 64 is fixedly installed on the upper surface of the test platform 4, and the clamping plate 65 passes through the vertical plate 64.

[0034] In this embodiment, the four side walls of the test bench 4 are respectively fixedly connected to the telescopic ends of an electric telescopic rod 61 by bolts. A vertical fixing plate 62 is fixedly installed on the outer wall of the cylinder of the electric telescopic rod 61 by bolts. A horizontal connecting plate 63 is welded to the side of the fixing plate 62 near the test bench 4, and a vertical clamping plate 65 is welded to the end of the connecting plate 63. On the upper surface of the test bench 4, a vertical plate 64 is welded to the position corresponding to each clamping plate 65. The vertical plate 64 has guide holes that are adapted to the size of the clamping plate 65. The clamping plate 65 horizontally passes through the guide holes of the vertical plate 64 and can slide horizontally along the guide holes. When it is necessary to clamp the liquid cooling plate, the system is activated. The electric telescopic rod 61 retracts at its telescopic end, causing the fixing plate 62 to move closer to the center of the test bench 4. The fixing plate 62, through the connecting plate 63, causes the clamping plate 65 to slide along the guide hole of the vertical plate 64 towards the center of the test bench 4 until the end of the clamping plate 65 is tightly fitted with the side wall of the liquid cooling plate, thus completing the clamping and fixing. When it is necessary to release the liquid cooling plate, the telescopic end of the electric telescopic rod 61 extends, causing the clamping plate 65 to slide away from the center of the test bench 4, thus releasing the liquid cooling plate. The guide hole of the vertical plate 64 provides precise guidance for the movement of the clamping plate 65, ensuring that the clamping plate 65 always moves in a straight line in the horizontal direction without vertical swaying or horizontal deviation.

[0035] Optional, please refer to Figure 3 and Figure 4 A rubber pad 66 is fixedly installed at the end of the clamping plate 65.

[0036] In this embodiment, a rubber pad 66 is fixedly installed at the end of the clamping plate 65 facing the center of the test bench 4 using a high-strength environmentally friendly adhesive. The rubber pad 66 is made of wear-resistant, non-slip, and oil-resistant nitrile rubber, with a thickness of 3-5mm and a diamond-shaped anti-slip texture pressed on its surface. The size of the rubber pad 66 perfectly matches the end size of the clamping plate 65, completely covering the contact end face between the clamping plate 65 and the liquid cooling plate. When the clamping plate 65 clamps the liquid cooling plate, the rubber pad 66 directly contacts the side wall of the liquid cooling plate. The elastic deformation of the rubber pad 66 can buffer the clamping impact force of the clamping plate 65, while increasing the static friction between the clamping plate 65 and the liquid cooling plate, preventing the liquid cooling plate from sliding during the test. The flexible characteristics of the rubber pad 66 can prevent the metal end face of the clamping plate 65 from directly contacting the liquid cooling plate, preventing scratches and bumps to the surface coating and welded structure of the liquid cooling plate.

[0037] Optional, please refer to Figure 3 , Figure 4 and Figure 5 It also includes a drain assembly 7, which is disposed in the test bench 4 and is used to collect the coolant leaking from the liquid cooling plate during the test.

[0038] In this embodiment, a drain assembly 7 is integrated inside the test bench 4. The inlet of the drain assembly 7 is located on the upper surface of the test bench 4, directly opposite the placement area of ​​the liquid cooling plate. The outlet of the drain assembly 7 extends to the outer bottom of the test bench 4 and can be connected to an external collection container to receive and collect the coolant leaking from the liquid cooling plate during the test, preventing the coolant from flowing onto the equipment surface. During the test, if the liquid cooling plate cracks due to overload or structural damage, the coolant inside will leak onto the upper surface of the test bench 4. The drain assembly 7 will receive and collect all the leaked coolant and guide it through a pipeline to an external collection container, achieving full collection and centralized treatment of the leaked coolant.

[0039] Optional, please refer to Figure 3 , Figure 4 and Figure 5 The drain assembly 7 includes a placement groove 71 on the upper surface of the test bench 4. The surface of the placement groove 71 is provided with drain holes 72 arranged in a rectangular array. The test bench 4 is also provided with a liquid collection unit for collecting the coolant discharged from the drain holes 72.

[0040] In this embodiment, a rectangular placement groove 71 is formed at the center of the upper surface of the test bench 4. The size of the placement groove 71 covers the maximum size of a conventional liquid cooling plate, and the depth of the placement groove 71 is 5-10mm, used to collect leaked coolant. Drainage holes 72 arranged in a rectangular array are formed on the bottom surface of the placement groove 71, and the drainage holes 72 extend vertically downward into the interior of the test bench 4. A liquid collection unit is set inside the test bench 4, and the liquid inlet end of the liquid collection unit is connected to the bottom end of all the drainage holes 72, used to collect the coolant discharged from the drainage holes 72. The coolant leaking from the liquid cooling plate flows into the placement groove 71 and flows downward through the drainage holes 72 on the bottom surface of the placement groove 71 under the action of gravity, and enters the liquid collection unit inside the test bench 4. The liquid collection unit temporarily stores the coolant, realizing the centralized collection of leaked coolant. The enclosure structure of the placement groove 71 can prevent the coolant from flowing out of the test bench 4, ensuring that all leaked coolant can enter the drainage holes 72.

[0041] Optional, please refer to Figure 3 , Figure 4 and Figure 5 The liquid collection unit includes a liquid collection chamber 73 formed in the test platform 4. The bottom end of the drain hole 72 is connected to the liquid collection chamber 73. A drain pipe 74 connected to the liquid collection chamber 73 is fixedly installed at the bottom of the test platform 4.

[0042] In this embodiment, a closed liquid collection chamber 73 is provided inside the test bench 4 as a liquid collection unit. The horizontal dimension of the liquid collection chamber 73 is larger than the dimension of the placement tank 71. The bottom ends of all drain holes 72 are connected to the top of the liquid collection chamber 73 to ensure that all the coolant in the drain holes 72 flows into the liquid collection chamber 73. A drain pipe 74 is welded and fixed to the bottom side wall of the test bench 4. One end of the drain pipe 74 is connected to the bottom of the liquid collection chamber 73, and the other end is connected to an external coolant collection container through a hose. The coolant in the drain holes 72 flows into the liquid collection chamber 73 under the action of gravity. The liquid collection chamber 73 temporarily stores the coolant. The coolant in the liquid collection chamber 73 continuously flows out through the drain pipe 74 at the bottom and enters the external collection container, realizing the continuous output and centralized collection of coolant. The closed structure of the liquid collection chamber 73 can prevent coolant from leaking to other parts of the test bench 4 and realize convenient recycling of coolant, which greatly reduces the cleaning workload after testing.

[0043] Optional, please refer to Figure 6 The upper surface of the base plate 2 is also fixedly installed with a fixed cylinder 32, and the pressure sensor 3 is located in the fixed cylinder 32. The bottom of the test platform 4 is fixedly installed with a limiting sleeve 31, and the bottom of the limiting sleeve 31 is sleeved in the fixed cylinder 32.

[0044] In this embodiment, a cylindrical fixing cylinder 32 is welded and fixed at the center of the upper surface of the base plate 2. The inner diameter of the fixing cylinder 32 is larger than the outer diameter of the pressure sensor 3. The pressure sensor 3 is stably placed on the upper surface of the base plate 2 inside the fixing cylinder 32, and the top of the pressure sensor 3 can be in close contact with the bottom of the test platform 4. A cylindrical limiting sleeve 31 is welded and fixed at the center of the bottom of the test platform 4. The outer diameter of the limiting sleeve 31 is adapted to the inner diameter of the fixing cylinder 32, and the bottom of the limiting sleeve 31 can be fitted inside the fixing cylinder 32. The height of the limiting sleeve 31 is greater than the height of the fixing cylinder 32, ensuring that the bottom of the test bench 4 can make tight contact with the top of the pressure sensor 3 after the sleeve is fitted. When installing the test bench 4, the limiting sleeve 31 is aligned with the fixing cylinder 32, so that the bottom of the limiting sleeve 31 is fitted inside the fixing cylinder 32, achieving coaxial positioning of the test bench 4 and the base plate 2. During the test, the fitting of the limiting sleeve 31 and the fixing cylinder 32 can prevent the test bench 4 from shifting horizontally, ensuring that the pressure sensor 3 is always subjected to uniform force without off-center loading, further improving the stability of the test process.

[0045] Optional, please refer to Figure 6 The inner top of the fixed cylinder 32 and the outer bottom of the limiting sleeve 31 are both provided with rounded chamfers.

[0046] In this embodiment, a circular chamfer with a radius of 3-5mm is machined on the inner side of the top end of the fixed cylinder 32, forming a smooth flared guide structure on the inner side of the top end of the fixed cylinder 32. A circular chamfer matching the chamfer of the fixed cylinder 32 is machined on the outer side of the bottom end of the limiting sleeve 31, with the radius of the chamfer being the same as that of the chamfer of the fixed cylinder 32, forming a smooth conical guide structure on the outer side of the bottom end of the limiting sleeve 31. When installing the test platform 4, the bottom end of the limiting sleeve 31 is close to the top end of the fixed cylinder 32. The circular chamfer on the outer side of the limiting sleeve 31 and the circular chamfer on the inner side of the fixed cylinder 32 cooperate with each other to form a guide structure, guiding the limiting sleeve 31 to automatically align with the inner hole of the fixed cylinder 32 and smoothly fit into the interior of the fixed cylinder 32 without the need for repeated manual alignment, thus avoiding the jamming and alignment difficulties that are prone to occur with straight-mouth fitting.

[0047] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A liquid-cooled plate load-bearing test platform, comprising a base (1), characterized in that, A vertical rod (11) is fixedly installed on the upper surface of the base (1), and a mounting plate (12) is fixedly installed at the top of the vertical rod (11). A hydraulic cylinder (13) is fixedly installed through the mounting plate (12), and a pressure plate (14) is fixedly installed at the telescopic end of the hydraulic cylinder (13). A base plate (2) is provided above the base (1), and a test platform (4) is provided above the base plate (2). A pressure sensor (3) is provided between the test platform (4) and the base plate (2), and the pressure plate (14) is located directly above the test platform (4). The base (1) also includes: Elastic component (8), which is disposed between the base plate (2) and the base (1), is used to provide elastic support for the base plate (2) and amplify the downward displacement of the base plate (2) when the liquid cooling plate is compressed; Distance sensor (5), which is fixedly installed on the upper surface of the test bench (4) and is used to detect the distance between the pressure plate (14) and the test bench (4); The displacement sensor (9) is located in the bottom of the pressure plate (14) which has grooves arranged in a rectangular array.

2. The liquid-cooled plate load-bearing testing platform according to claim 1, characterized in that, The elastic component (8) includes movable plates (82) that are equidistantly sleeved on the outside of the upright (11). Springs (83) arranged in a rectangular array are provided between adjacent movable plates (82) and between the movable plate (82) at the bottom and the base (1). A support rod (81) is fixedly installed on the surface of the movable plate (82) at the top. The top end of the support rod (81) is fixedly connected to the lower surface of the base plate (2).

3. The liquid-cooled plate load-bearing testing platform according to claim 1, characterized in that, It also includes a clamping component (6), which is disposed on the outside of the test stage (4) and is used to clamp and fix the liquid cooling plate to be tested to the surface of the test stage (4).

4. The liquid-cooled plate load-bearing testing platform according to claim 3, characterized in that, The clamping assembly (6) includes an electric telescopic rod (61) disposed around the test platform (4). The telescopic end of the electric telescopic rod (61) is fixedly connected to the side wall of the test platform (4). A fixing plate (62) is fixedly installed on the outer wall of the electric telescopic rod (61). A connecting plate (63) is fixedly installed on the side of the fixing plate (62) near the test platform (4). A clamping plate (65) is fixedly installed at the end of the connecting plate (63). A vertical plate (64) is fixedly installed on the upper surface of the test platform (4), and the clamping plate (65) penetrates the vertical plate (64).

5. The liquid-cooled plate load-bearing testing platform according to claim 4, characterized in that, A rubber pad (66) is fixedly installed at the end of the clamping plate (65).

6. The liquid-cooled plate load-bearing testing platform according to claim 1, characterized in that, It also includes a drain assembly (7), which is disposed in the test bench (4) and is used to collect the coolant leaked from the liquid cooling plate during the test.

7. The liquid-cooled plate load-bearing testing platform according to claim 6, characterized in that, The drain assembly (7) includes a placement groove (71) on the upper surface of the test bench (4). The surface of the placement groove (71) is provided with drain holes (72) arranged in a rectangular array. The test bench (4) is also provided with a liquid collection unit for collecting the coolant discharged from the drain holes (72).

8. The liquid-cooled plate load-bearing testing platform according to claim 7, characterized in that, The liquid collection unit includes a liquid collection chamber (73) opened in the test platform (4), the bottom end of the drain hole (72) is connected to the liquid collection chamber (73), and a drain pipe (74) connected to the liquid collection chamber (73) is fixedly installed at the bottom of the test platform (4).

9. The liquid-cooled plate load-bearing testing platform according to claim 1, characterized in that, The upper surface of the base plate (2) is also fixedly installed with a fixed cylinder (32), and the pressure sensor (3) is located in the fixed cylinder (32). The bottom of the test platform (4) is fixedly installed with a limiting sleeve (31), and the bottom of the limiting sleeve (31) is sleeved in the fixed cylinder (32).

10. A liquid-cooled plate load-bearing testing platform according to claim 9, characterized in that, The inner top of the fixed cylinder (32) and the outer bottom of the limiting sleeve (31) are both provided with rounded chamfers.

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