Water-cooled plate

Abstract

This application relates to a water-cooled plate, specifically in the field of liquid cooling technology. The water-cooled plate includes a first plate body with two water passage holes, one for water inlet and the other for water return. A second plate body has a first mounting side and a second mounting side in its thickness direction. The first mounting side has a mounting portion, and the second plate body has a heat dissipation channel communicating with the two water passage holes and at least partially corresponding to the mounting portion. The second mounting side is detachably mounted to the first plate body. By setting the water-cooled plate as a split structure, the first plate body serves as a common water circuit base that is not disassembled with changes in the test module, while the second plate body serves as a replaceable component adapted to a specific test module. When changing test modules of different specifications, only the second plate body needs to be replaced to complete the adaptation, which helps to reduce the operation steps of disassembling and assembling pipeline connections, and helps to improve the convenience of the testing process, as well as the versatility and testing efficiency of the reactive aging equipment.

Description

Technical Field

[0001] This application relates to the field of liquid cooling technology, and in particular to a water-cooled plate. Background Technology

[0002] Reactive power aging equipment is a testing device used to verify the reliability of power electronic devices such as reactive power compensation modules. It operates the module under test under rated current or overcurrent conditions for an extended period, monitoring the temperature changes and eventual stable temperature of the components to evaluate the module's heat dissipation design capabilities and material heat resistance. Because the module under test generates a significant amount of heat during continuous high-current operation, forced cooling with a water-cooled plate is typically required to ensure the module temperature remains within a controllable range and the accuracy of the test data.

[0003] Existing reactive power aging equipment typically uses a one-piece water-cooled plate structure. This means that a single water-cooled plate is designed specifically for the dimensions and installation location of the module under test, integrating the cooling water circuit, module mounting surface, and inlet / outlet water interfaces into the same plate. The inlet and outlet of this one-piece water-cooled plate are connected to an external cooling water circulation system via water pipe connectors. The module under test is directly mounted on the surface of the water-cooled plate, and cooling water flows inside the plate to remove the heat generated during module operation.

[0004] However, the aforementioned integrated water-cooled plate, by consolidating all functions into a single plate, results in a complex internal water circuit structure, making it difficult to process and costly to manufacture. More significantly, due to differences in dimensions, mounting holes, and heat dissipation area among different test modules, the existing integrated water-cooled plate is incompatible when replacing different types of test modules for aging tests. The entire water-cooled plate, along with its connected water pipes and connectors, must be disassembled and replaced with a completely new water-cooled plate assembly compatible with the new module. This process is cumbersome, time-consuming, and the repeated disassembly and reassembly of pipe connections poses a risk of leakage, severely impacting testing efficiency and equipment versatility. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, this application provides a water-cooled plate.

[0006] Firstly, the water-cooled plate provided in this application adopts the following technical solution: A water-cooled plate includes: The first plate has two water passages, one of which is for water inlet and the other for water outlet; and... The second plate has a first mounting side and a second mounting side in its thickness direction. The first mounting side is provided with a mounting part for mounting the test module. The second plate is provided with a heat dissipation channel, which communicates with the two water passage holes and is at least partially provided corresponding to the mounting part, so that cooling water can cool the test module. The second mounting side is detachably mounted to the first plate so that the water-cooled plate can be adapted to different test modules.

[0007] By adopting the above technical solution, and setting the water-cooled plate as a split structure, the first plate serves as a common water circuit base that does not need to be disassembled when the test module changes, while the second plate serves as a replaceable component adapted to a specific test module. This makes the functions of each component more distributed, and the internal structure of each individual component is correspondingly simplified, which helps to reduce the processing difficulty and manufacturing cost of each component. At the same time, when changing test modules of different specifications, it is not necessary to completely disassemble the water-cooled plate and its connecting pipes; only the second plate needs to be replaced to complete the adaptation. This helps to reduce the number of steps involved in disassembling and assembling pipe connections, thereby improving the risk of water leakage caused by repeated disassembly and assembly, enhancing the convenience of the testing process, and improving the versatility and testing efficiency of the reactive aging equipment.

[0008] Optionally, the mounting part includes a mounting boss, the mounting boss is provided with a heat dissipation groove, and the heat dissipation channel includes the heat dissipation groove.

[0009] By adopting the above technical solution, heat dissipation slots are set on the mounting boss, allowing the test module to cover the slot opening. This enables cooling water to directly cool the test module, reducing thermal resistance along the heat transfer path and improving heat dissipation in the heat-generating areas of the test module. Simultaneously, the heat dissipation slots are set on the second board along with the mounting boss. When the second board is replaced to accommodate different test modules, the arrangement of the heat dissipation slots also changes, ensuring the heat dissipation structure matches the heat generation characteristics of the specific test module, thereby improving the accuracy of temperature rise monitoring data during testing.

[0010] Optionally, the upper end face of the mounting boss is provided with a first receiving groove for the installation of the first sealing ring.

[0011] By adopting the above technical solution and setting a first receiving groove to install the first sealing ring, the gap between the test module and the mounting boss can be sealed, which helps to improve the sealing performance at the opening of the heat sink, reduce the risk of cooling water leakage, and thus ensure the safe operation of the test module in a water-cooled environment.

[0012] Optionally, the second mounting side is provided with a receiving groove, the heat dissipation channel includes the receiving groove, the first plate is covered on the receiving groove to form a receiving cavity, and the water passage hole communicates with the receiving cavity.

[0013] By adopting the above technical solution, setting up a receiving groove and forming a receiving cavity, the heat dissipation channel can be equipped with a buffer and transition cavity structure between the water passage hole and the heat dissipation groove, which helps to balance the pressure fluctuations during the cooling water flow process and improve the stability of the cooling water flow. It can also absorb the position deviation of the heat dissipation groove, so that even if the position of the heat dissipation groove corresponding to different test modules is different, the second plate can still be adapted to the water passage hole of the first plate with a fixed position, which is conducive to enhancing the versatility of the second plate and further improving the ability of the water-cooled plate to adapt to different test modules.

[0014] Optionally, two receiving grooves are provided, with the two receiving grooves respectively located at both ends of the mounting part and corresponding to the two water passage holes respectively.

[0015] By adopting the above technical solution, two receiving slots are respectively set at both ends of the mounting part for the corresponding water inlet and water outlet holes. This not only enables the cooling water to form a smoother unidirectional flow path in the heat dissipation channel, which helps to improve the heat dissipation balance when the cooling water flows through the heat-generating area of ​​the test module, but also allows the positional deviations of the water inlet and water outlet sides to be absorbed. This further facilitates the adaptation of the second plate to different test modules and improves the versatility of the water-cooled plate.

[0016] Optionally, the mounting part is provided with a heat dissipation groove, the length of the heat dissipation groove in the width direction of the second plate is L1, and the length of the receiving groove in the width direction of the second plate is L1, wherein L1 < L2.

[0017] By adopting the above technical solution, the length L2 of the receiving groove in the width direction is limited to be greater than the length L1 of the heat dissipation groove in the width direction, so that the receiving cavity can cover the entire heat dissipation groove in the width direction. This is beneficial to improve the uniformity of cooling water distribution in the width direction of the heat dissipation groove, reduce the situation of insufficient water supply in local areas, and help improve the heat dissipation uniformity of the heat dissipation groove to the heat-generating area of ​​the test module, thereby improving the uniformity of temperature distribution of the test module and the accuracy of test data during the test.

[0018] Optionally, a second sealing ring is provided between the first plate and the second plate, and the second sealing ring surrounds the outside of the receiving groove.

[0019] By adopting the above technical solution, a second sealing ring is set between the first plate and the second plate to surround the outside of the receiving groove, so as to seal the gap between the first plate and the second plate, which helps to improve the sealing performance of the receiving cavity and reduce the risk of cooling water leakage at the connection between the two plates.

[0020] Optionally, the first plate body has a second receiving groove on the side facing the second plate body, and the second sealing ring is disposed in the second receiving groove.

[0021] By adopting the above technical solution, a second receiving groove is provided on the first plate for installing the second sealing ring. This provides a fixed installation and positioning space for the second sealing ring, which helps improve the stability of the second sealing ring under pressure and the reliability of the sealing effect. At the same time, when the second plate is repeatedly replaced, the second receiving groove can limit the sealing ring, helping to maintain the stability of the sealing ring's position, thereby improving the durability of the sealing performance at the water-cooled plate connection.

[0022] Optionally, each of the water passage holes is located on the side of the first plate away from the second plate.

[0023] By adopting the above technical solution, each water passage hole is set on the side of the first plate away from the second plate, so that the cooling water flows into or out of the heat dissipation tank along the thickness direction of the first plate. This helps to shorten the water flow path, reduce the cooling loss of the cooling water during the transportation process, and make the cooling water temperature flowing into the heat dissipation tank relatively low. This helps to improve the heat dissipation effect of the heat dissipation tank on the test module, thereby improving the cooling capacity of the temperature rise and thermal stability test.

[0024] Optionally, the water-cooled plate further includes a self-sealing structure, the self-sealing structure comprising: The valve core is movably installed in the water passage hole along the thickness direction of the first plate. During its movement, the valve core has a closed position that can close the water passage hole and an open position that can open the water passage hole. An elastic element, disposed between the valve core and the inner wall of the water passage, is used to reset the valve core to the closed position; and, It is located at the top of the second plate and is used to drive the valve core to the open position when the second plate is connected to the first plate.

[0025] By adopting the above technical solution, a self-sealing structure is designed to link the opening and closing of the water passage hole with the installation and removal of the second plate. The water passage hole automatically closes when the second plate is removed and automatically opens when it is installed. This helps reduce cooling water leakage during the replacement of the second plate, improving the convenience and cleanliness of the installation and removal operations. Furthermore, the detachable installation method of the second plate helps reduce the steps of draining and refilling cooling water when frequently replacing test modules, thereby improving testing efficiency.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting the water-cooled plate as a split structure consisting of a first plate and a second plate, the first plate serves as a fixed common water circuit base, while the second plate serves as a replaceable component that adapts to specific test modules. When replacing test modules of different specifications, it is not necessary to completely disassemble the water-cooled plate and its connecting pipes. Only the second plate needs to be replaced to complete the adaptation. This helps to simplify the internal structure of each component, reduce processing difficulty and manufacturing costs, and at the same time improve the risk of water leakage caused by repeated disassembly and reassembly of pipe connections, thereby improving the versatility and testing efficiency of reactive aging equipment. 2. By setting heat dissipation grooves on the mounting boss, the test module is covered by the groove opening, allowing cooling water to directly contact the test module for cooling. This helps reduce thermal resistance in the heat transfer path and improves the heat dissipation effect on the heat-generating area of ​​the test module. At the same time, by setting a receiving groove on the second mounting side to form a receiving cavity, the receiving cavity can act as a buffer and transition between the water passage hole and the heat dissipation groove, which helps to balance pressure fluctuations in the heat dissipation channel and absorb the positional deviation of the heat dissipation groove corresponding to different test modules, further improving the water-cooled plate's ability to adapt to different test modules. 3. By setting a self-sealing structure, the opening and closing of the water passage hole is linked to the installation and removal of the second plate. When the second plate is removed, the water passage hole automatically closes, and when the second plate is installed, the water passage hole automatically opens. This helps to reduce the leakage of cooling water during the replacement of the second plate, improves the convenience of installation and removal operations, and helps to reduce the number of steps to drain and refill cooling water when frequently replacing test modules, thereby further improving testing efficiency. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the water-cooled plate provided in this application; Figure 2 yes Figure 1 A bottom view of the structure of the second plate in the middle section; Figure 3 yes Figure 1 Schematic diagram of the cross-sectional structure of the second plate in the middle; Figure 4 yes Figure 1 A three-dimensional structural diagram of the first plate at one angle; Figure 5 yes Figure 1 A three-dimensional structural diagram of the first plate from another angle; Figure 6 yes Figure 1 A cross-sectional structural diagram of the first plate in the middle section; Figure 7 yes Figure 6 A magnified view of a portion of point A in the middle.

[0028] Explanation of reference numerals in the attached figures: 100. Water-cooled plate; 1. First plate body; 11. Plate body; 111. Water passage hole; 112. Second receiving groove; 113. Protruding ring; 12. Limiting plate; 2. Second plate body; 21. First mounting side; 22. Second mounting side; 23. Mounting part; 231. First receiving groove; 24. Heat dissipation channel; 241. Heat dissipation groove; 242. Receiving groove; 31. Second sealing ring; 32. Third sealing ring; 4. Self-sealing structure; 41. Valve core; 411. Valve head; 4111. Third receiving groove; 412. Valve stem; 413. Water passage; 42. Elastic element; 43. Top. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1 - Appendix Figure 7 This application will be described in further detail below.

[0030] In one embodiment of this application, please refer to Figures 1 to 4 A water-cooled plate 100 includes a first plate body 1 and a second plate body 2. The first plate body 1 is provided with two water passage holes 111, one of which is used for water inlet and the other for water return. The second plate body 2 has a first mounting side 21 and a second mounting side 22 in its thickness direction. The first mounting side 21 is provided with a mounting part 23 for mounting a test module. The second plate body 2 is provided with a heat dissipation channel 24, which communicates with the two water passage holes 111 and is at least partially provided corresponding to the mounting part 23, so that the cooling water can cool the test module. The second mounting side 22 is detachably mounted to the first plate body 1 so that the water-cooled plate 100 can be adapted to different test modules.

[0031] It should be noted that the first plate 1 and the second plate 2 can be made of various materials, such as metal or plastic, and the embodiments of this application do not limit this. Further, the first plate 1 has two water passage holes 111, which are channels that penetrate or partially penetrate the plate to allow cooling water to pass through. One of the two water passage holes 111 is used for water inlet, i.e., as a channel for cooling water to flow in, and the other is used for water outlet, i.e., as a channel for cooling water to flow out. The second plate 2 has two opposing surfaces in the thickness direction, namely the first mounting side 21 and the second mounting side 22, where the thickness direction refers to the direction perpendicular to the main surface of the plate. The first mounting side 21 has a mounting portion 23, which is a structural area used to support and fix the test module. Its specific form can be a boss, a mounting plane, or a mounting hole, etc. The second plate 2 has a heat dissipation channel 24, which is a flow channel for cooling water to flow inside the plate and achieve heat exchange. Specifically, it can be formed by a groove, a channel, or a cavity, etc. Detachable installation means that the second mounting side 22 of the second plate 2 is connected to the first plate 1 by bolts, snap-fit ​​or other non-permanent connection methods, which can be separated and reassembled without damaging the components.

[0032] Understandably, the traditional integrated water-cooled plate 100 is split into two independent but assemblable components: a first plate 1 and a second plate 2. The first plate 1 serves as a common water circuit base, and the connection between its inlet water passage 111 and return water passage 111 and the external cooling water circulation system remains fixed. The second plate 2 serves as an adapter for the test module. The mounting part 23 on its first mounting side 21 is used to mount the test module. The heat dissipation channel 24 in the second plate 2 is connected to the two water passages 111 and is at least partially set to correspond to the mounting part 23, so that the incoming cooling water can flow through the heat-generating area of ​​the test module and carry away the heat, thereby cooling the test module. Since the second mounting side 22 of the second plate 2 is detachably mounted on the first plate 1, when the specifications, dimensions or heat dissipation requirements of the test module change, the operator only needs to separate the second plate 2 from the first plate 1 and replace it with a second plate 2 that is compatible with the new test module. The first plate 1 and its connected water pipes and water pipe joints do not need to be disassembled, which helps to improve the compatibility and adaptability of the water-cooled plate 100 with different test modules.

[0033] In this embodiment, by setting the water-cooled plate 100 as a split structure, the first plate 1 serves as a common water circuit base that is not disassembled with changes in the test module, while the second plate 2 serves as a replaceable component adapted to a specific test module. This makes the functions of each component more distributed, and the internal structure of each component is correspondingly simplified, which helps to reduce the processing difficulty and manufacturing cost of each component. At the same time, when changing test modules of different specifications, it is not necessary to completely disassemble the water-cooled plate 100 and its connecting pipes; only the second plate 2 needs to be replaced to complete the adaptation. This helps to reduce the number of steps involved in disassembling and assembling pipe connections, thereby improving the risk of water leakage caused by repeated disassembly and assembly, enhancing the convenience of the testing process, and improving the versatility and testing efficiency of the reactive aging equipment.

[0034] In one embodiment of this application, the mounting part 23 includes a mounting boss with a heat dissipation groove 241, and the heat dissipation channel 24 includes the heat dissipation groove 241. The mounting boss is a platform-like structure protruding outward from the surface of the first mounting side 21 of the second plate 2, used to support the test module and create a relatively independent mounting area between the test module and the surface of the second plate 2. The mounting boss has a heat dissipation groove 241, which is a recessed groove formed on the upper surface of the boss to accommodate cooling water, with its opening facing the mounting direction of the test module. The heat dissipation channel 24 includes the heat dissipation groove 241, meaning the heat dissipation groove 241 participates in the flow of cooling water and heat exchange as part of the heat dissipation channel 24. Furthermore, after the test module is installed in place, it covers the opening of the heat dissipation groove 241, thereby closing the opening of the heat dissipation groove 241.

[0035] Understandably, when the test module is mounted on the mounting boss and covers the opening of the heat dissipation slot 241, the cooling water flowing within the heat dissipation slot 241 can directly contact the bottom surface of the test module, thereby cooling the test module. Compared to indirect cooling methods where the cooling water is separated from the test module by the board wall, this method of allowing the cooling water to directly contact the test module reduces the thermal resistance between the cooling water and the test module, which is beneficial to improving the heat exchange efficiency between the cooling water and the test module. At the same time, the mounting boss makes the installation area of ​​the test module relatively concentrated, and the arrangement of the heat dissipation slot 241 can correspond to the main heat-generating areas of the test module, which helps to make the heat dissipation effect of the cooling water more targeted to the heat-generating parts of the test module.

[0036] In one embodiment of this application, the upper surface of the mounting boss is provided with a first receiving groove 231 for mounting a first sealing ring. The upper surface refers to the surface of the mounting boss facing the mounting direction of the test module, and the first receiving groove 231 refers to a groove formed on the upper surface to accommodate and position the sealing element. The first sealing ring is installed within the first receiving groove 231. The first sealing ring is an annular sealing element made of elastic and sealing materials such as rubber, silicone, or fluororubber, and its shape can be adapted to fit the first receiving groove 231, being annular or frame-shaped, etc. After the first sealing ring is placed within the first receiving groove 231, a portion of its height protrudes from the opening of the first receiving groove 231, so that elastic deformation occurs when the test module is pressed to achieve a seal. Further, the cross-sectional shape of the first receiving groove 231 can be rectangular, trapezoidal, or semi-circular, etc., and this embodiment of the application does not limit this.

[0037] Understandably, since the test module is mounted on the opening of the heat sink 241, and cooling water with a certain pressure flows inside the heat sink 241, if there is no reliable seal between the test module and the upper surface of the mounting boss, the cooling water may leak out from the contact gap between the two. Therefore, by setting a first receiving groove 231 and installing a first sealing ring on the upper surface of the mounting boss, when the test module is installed and pressed tightly onto the mounting boss, the first sealing ring undergoes elastic deformation under pressure, filling the tiny gap between the test module and the upper surface of the mounting boss, thereby forming a sealing barrier around the opening of the heat sink 241, which helps to prevent the cooling water in the heat sink 241 from leaking out along the contact surface between the test module and the boss.

[0038] In one embodiment of this application, the second mounting side 22 is provided with a receiving groove 242, and the heat dissipation channel 24 includes the receiving groove 242. The first plate 1 is covered on the receiving groove 242 to form a receiving cavity. The water passage hole 111 communicates with the receiving cavity. The second mounting side 22 refers to the side of the second plate 2 facing away from the installation direction of the test module and used for connection with the first plate 1. The receiving groove 242 refers to the groove formed on this side and recessed inward to receive cooling water. The heat dissipation channel 24 includes the receiving groove 242, that is, the receiving groove 242 is a component of the heat dissipation channel 24. The first plate 1 is covered on the receiving groove 242, that is, the first plate 1 covers the opening of the receiving groove 242, so that the opening of the receiving groove 242 is closed by the first plate 1, thereby forming a closed cavity together with the groove wall of the receiving groove 242. This cavity is the receiving cavity. The water passage 111 connects to the receiving cavity, meaning that the water passage 111 on the first plate 1 is connected to the receiving cavity, allowing cooling water to enter or flow out of the receiving cavity through the water passage 111.

[0039] It is understandable that by setting a receiving groove 242 on the second mounting side 22 and covering it with the first plate 1 to form a receiving cavity, the cooling water passes through the receiving cavity with a certain volume before entering the heat dissipation channel 241 or after flowing out of the heat dissipation channel 241. On the one hand, the receiving cavity has a certain buffer volume, which can buffer when the cooling water in the heat dissipation channel 24 experiences pressure fluctuations, helping to balance the pressure fluctuations in the heat dissipation channel 24. On the other hand, since the position of the water passage hole 111 on the first plate 1 is relatively fixed, while the second plate 2 needs to be adapted to different test modules, the positions of the mounting part 23 and the heat dissipation channel 241 on the second plate 2 will be adjusted according to different test modules. In order to ensure that the heat dissipation channel 241 with changed positions can still be connected to the fixed water passage hole 111, the volume of the receiving cavity is increased so that the receiving cavity can cover the heat dissipation channel 241 and water passage hole 111 in different positions, thereby absorbing the positional deviation of different mounting parts 23 and improving the versatility of the second plate 2 for different test modules.

[0040] In one embodiment of this application, two receiving grooves 242 are provided, each located at one end of the mounting portion 23 and corresponding to one of the two water passage holes 111. Here, "both ends" refers to the two opposite end regions of the mounting portion 23 in the direction of cooling water flow. Each of the two receiving grooves 242 corresponds to one of the water passage holes 111; that is, one receiving groove 242 corresponds to the water passage hole 111 for inlet water, and the other receiving groove 242 corresponds to the water passage hole 111 for outlet water, allowing inlet and outlet water to enter and exit the heat dissipation channel 24 through their respective receiving cavities.

[0041] Understandably, by setting two receiving tanks 242 at both ends of the mounting portion 23 and corresponding to the inlet water passage 111 and the return water passage 111 respectively, cooling water enters the receiving chamber on the inlet side through the inlet water passage 111, flows along the direction of the mounting portion 23 through the heat dissipation groove 241, and then flows into the receiving chamber on the return water side at the other end and out through the return water passage 111, forming a cooling water path from one end to the other. By setting inlet and return water buffer chambers at both ends of the mounting portion 23, it helps to make the cooling water flow more evenly through the heat dissipation area corresponding to the mounting portion 23, improving the uniformity of cooling water distribution within the heat dissipation area. At the same time, the inlet and return water are handled by independent receiving chambers, which helps to reduce mutual interference between the inlet and return water.

[0042] In one embodiment of this application, the receiving groove 242 is strip-shaped and extends along the width direction of the second plate 2. Here, "strip-shaped" refers to an elongated shape in which the dimension of the receiving groove 242 in the length direction is significantly larger than its dimension in the width direction. The receiving groove 242 extends along the width direction of the second plate 2, which refers to the direction in the plane of the second plate 2 that intersects with the main flow direction of the cooling water, and is generally perpendicular to the length direction of the second plate 2.

[0043] Understandably, since cooling water typically flows along the length of the second plate 2, designing the receiving groove 242 as a strip-shaped structure extending along the width of the second plate 2 allows the receiving cavity to have a large coverage area in the width direction. After entering the strip-shaped receiving cavity from the water passage 111, the cooling water can first be distributed and expanded in the width direction before flowing into the heat dissipation groove 241 along the length direction. This arrangement helps to spread the cooling water more evenly along the width direction before entering the heat dissipation groove 241, thereby improving the uniformity of the cooling water distribution in the width direction of the heat dissipation groove 241. In addition, the strip-shaped receiving groove 242 extending along the width direction also facilitates the connection between the heat dissipation groove 241 located at different width positions and the receiving cavity, which helps to enhance the adaptability of the second plate 2 to changes in the position of the heat dissipation groove 241.

[0044] In this embodiment, by setting the receiving groove 242 as a strip structure extending along the width direction of the second plate 2, the receiving cavity can distribute cooling water in the width direction, which helps to improve the uniformity of cooling water distribution in the width direction when it enters the heat dissipation groove 241, thereby improving the heat dissipation effect. At the same time, the strip receiving groove 242 has a large width coverage range, which is conducive to compatibility with heat dissipation grooves 241 in different positions, further enhancing the ability of the second plate 2 to adapt to different test modules.

[0045] In one embodiment of this application, the mounting part 23 is provided with a heat dissipation groove 241. The length of the heat dissipation groove 241 in the width direction of the second plate 2 is L1, and the length of the receiving groove 242 in the width direction of the second plate 2 is L2, wherein L1 < L2. Since the cooling water flows along the length direction of the second plate 2, the cooling water first enters the receiving cavity extending in the width direction, and then is distributed from the receiving cavity to the heat dissipation groove 241. If the length of the receiving groove 242 in the width direction of the second plate 2 cannot cover the length of the heat dissipation groove 241 in the width direction, the area of ​​the heat dissipation groove 241 located outside the width range of the receiving groove 242 may not receive sufficient cooling water supply, resulting in uneven distribution of water flow in the mounting side along the width direction of the second plate 2, thereby affecting the heat dissipation effect of the heat dissipation groove 241. Therefore, by setting the length L2 of the receiving groove 242 in the width direction to be greater than the length L1 of the heat dissipation groove 241 in the width direction, the receiving cavity can completely cover the water supply range of the heat dissipation groove 241 in the width direction, which helps to distribute the cooling water more evenly in the width direction of the heat dissipation groove 241, thereby improving the heat dissipation effect of the heat dissipation groove 241.

[0046] In one embodiment of this application, a second sealing ring 31 is provided between the first plate 1 and the second plate 2, and the sealing ring surrounds the outside of the receiving groove 242. The second sealing ring 31 is an annular seal used to achieve a seal between the first plate 1 and the second plate 2. The second sealing ring 31 surrounds the outside of the receiving groove 242, where "outer side" refers to the area around the opening of the receiving groove 242 away from the center of the groove cavity; that is, the second sealing ring 31 is arranged along the outer periphery of the opening outline of the receiving groove 242, surrounding the opening of the receiving groove 242 within it. Furthermore, since the first plate 1 covers the receiving groove 242 to form a receiving cavity, and cooling water with a certain pressure flows within the receiving cavity, if there is a lack of seal between the contact surfaces of the first plate 1 and the second plate 2, the cooling water may seep out from the joint gap between the two plates. Therefore, by setting a second sealing ring 31 between the first plate 1 and the second plate 2 and surrounding it on the outside of the receiving groove 242, when the first plate 1 and the second plate 2 are connected and pressed together, the second sealing ring 31 is compressed and undergoes elastic deformation and fills the gap between the contact surfaces of the two plates, thereby forming a sealing barrier around the opening of the receiving groove 242, which helps to prevent the cooling water in the receiving cavity from leaking out along the contact surfaces of the two plates.

[0047] In one embodiment of this application, a second receiving groove 112 is provided on the side of the first plate 1 facing the second plate 2, and a second sealing ring 31 is disposed in the second receiving groove 112. The side facing the second plate 2 refers to the surface of the first plate 1 used for contact and connection with the second plate 2, and the second receiving groove 112 refers to a groove formed on this surface to accommodate and position the second sealing ring 31. The second sealing ring 31 is disposed within the second receiving groove 112, and the contour of the second receiving groove 112 can be adapted to the shape of the second sealing ring 31, so that after installation, a portion of the second sealing ring 31 protrudes from the opening of the second receiving groove 112 for pressure sealing. In other embodiments, the second receiving groove 112 may also be provided on the side of the second plate 2 facing the first plate 1, or corresponding receiving grooves may be provided on both the first plate 1 and the second plate 2 to jointly accommodate the second sealing ring 31.

[0048] Understandably, by providing a second receiving groove 112 on the side of the first plate 1 facing the second plate 2 and installing the second sealing ring 31 therein, the second receiving groove 112 can accommodate and position the second sealing ring 31, keeping it in a predetermined position during the connection and disassembly of the first plate 1 and the second plate 2. When the second plate 2 covers and presses against the area where the second sealing ring 31 is located, the second sealing ring 31 deforms under pressure under the constraint of the second receiving groove 112 to achieve a seal, which helps prevent the second sealing ring 31 from sliding laterally or being squeezed out during the pressure process.

[0049] In one embodiment of this application, the distance between the second sealing ring 31 and the receiving groove 242 is L3, where 3mm ≤ L3 ≤ 10mm. Here, distance L3 refers to the interval on the plate surface between the side of the second sealing ring 31 closest to the receiving groove 242 and the edge of the opening of the receiving groove 242. This distance satisfies the range of 3mm less than or equal to L3 and L3 less than or equal to 10mm. Furthermore, if the distance L3 is too small, the second sealing ring 31 will be too close to the edge of the receiving groove 242. Under cooling water pressure or vibration, a stress concentration zone may form at the edge of the receiving groove 242. After being deformed by pressure, the sealing ring is easily squeezed into the gap at the edge of the groove and sheared, leading to sealing failure. Simultaneously, the effective sealing area on the outer side of the second sealing ring 31 will decrease, and the actual clamping force on the second sealing ring 31 under the same bolt preload may be insufficient, posing a risk of low-pressure leakage. In addition, the second sealing ring 31 being too close to the edge of the receiving groove 242 will cause that area to bear both sealing pressure and medium pressure simultaneously, potentially causing local deformation of the plate and exacerbating leakage. On the other hand, if the distance L3 is too large, the plate support area between the second sealing ring 31 and the receiving groove 242 will increase. In order to ensure that the second sealing ring 31 obtains sufficient compression, a larger bolt preload is required to overcome the support reaction force of the large plate area in the middle. If the bolt force is insufficient, the cooling water will easily pass through the inside of the second sealing ring 31 and leak. At the same time, the position of the second sealing ring 31 is too far out, which will make the bolt holes closer to the edge of the plate, resulting in insufficient clamping force in the central area of ​​the plate and excessive clamping force at the edge. When the cooling water pressure fluctuates, the plate is prone to warping and deformation, causing bolt fatigue and loosening. In addition, the excessive distance will also increase the overall size of the plate, which is not conducive to the compact layout of the structure. Therefore, the distance L3 is limited to the range of 3mm to 10mm to maintain a reasonable gap between the second sealing ring 31 and the receiving groove 242. On the one hand, this keeps the second sealing ring 31 away from the stress concentration area at the edge of the receiving groove 242, which helps to prevent the sealing ring from being sheared and bitten, and ensures that the outer side of the sealing ring has sufficient effective sealing area, thus improving the compression effect of the sealing ring. On the other hand, this allows the bolt preload to be effectively transmitted to the second sealing ring 31, so that the second sealing ring 31 can obtain sufficient compression, which helps to maintain the stability of the seal at the connection when the cooling water pressure fluctuates, while also taking into account the compactness of the plate structure.

[0050] In one embodiment of this application, each water passage hole 111 is located on the side of the first plate 1 away from the second plate 2. The side away from the second plate 2 refers to the other surface of the first plate 1 opposite to the connecting surface of the second plate 2. That is, the inlet and outlet of the water passage hole 111 are located on the surface of the first plate 1 away from the second plate 2, allowing cooling water to flow in or out from this side along the thickness direction of the first plate 1. The thickness direction refers to the direction perpendicular to the main surface of the first plate 1.

[0051] Understandably, placing each water passage 111 on the side of the first plate 1 opposite to the second plate 2 allows cooling water to flow into or out of the heat dissipation groove 241 along the thickness direction of the first plate 1. Compared to an arrangement where the cooling water flows along a long, circuitous path inside the plate, this direct entry and exit along the thickness direction helps shorten the flow path of the cooling water. Since the cooling water loses heat due to heat exchange with the flow channel wall during its flow, a shorter flow path helps reduce the heat loss of the cooling water before it reaches the heat dissipation groove 241, resulting in a relatively lower temperature of the cooling water flowing into the heat dissipation groove 241, thereby improving the heat dissipation effect.

[0052] In one embodiment of this application, the water-cooled plate 100 further includes a self-sealing structure 4, which includes a valve core 41, an elastic element 42, and a top abutment 43. The valve core 41 is movably mounted on the water passage hole 111 along the thickness direction of the first plate 1. During its movement, the valve core 41 has a closed position that can close the water passage hole 111 and an open position that allows the water passage hole 111 to be open. The elastic element 42 is disposed between the valve core 41 and the inner wall of the water passage hole 111 to reset the valve core 41 to the closed position. The top abutment 43 is disposed on the second plate 2 to drive the valve core 41 to the open position when the second plate 2 is connected to the first plate 1.

[0053] It should be noted that the self-closing structure 4 refers to a structure that can automatically close the water passage hole 111 when the second plate 2 is separated from the first plate 1, and automatically guide the water passage hole 111 when the two plates are connected. The self-closing structure 4 includes a valve core 41, an elastic element 42, and a stop 43. The valve core 41 is a movable element installed in the water passage hole 111 along the thickness direction of the first plate 1, used to open and close the water passage hole 111. In its active stroke, it has a closed position that closes the water passage hole 111 and an open position that allows the water passage hole 111 to be open. The elastic element 42 is an elastic element provided between the valve core 41 and the inner wall of the water passage hole 111, used to provide a restoring force to the valve core 41, and can be in the form of a spring. The stop 43 is a structure provided on the second plate 2, used to drive the valve core 41 to move when the second plate 2 is connected to the first plate 1, and can be in the form of a protrusion or a push rod.

[0054] Understandably, by setting a self-sealing structure 4 consisting of a valve core 41, an elastic element 42, and abutment 43, the opening and closing of the water passage 111 is linked to the assembly and disassembly of the second plate 2. When the second plate 2 is not connected to the first plate 1, the elastic element 42 keeps the valve core 41 in the closed position, keeping the water passage 111 closed, thereby preventing residual cooling water in the first plate 1 from flowing out of the water passage 111. When the second plate 2 is connected to the first plate 1, the abutment 43 on the second plate 2 drives the valve core 41 to overcome the elastic force of the elastic element 42 and move to the open position, allowing the water passage 111 to be open and the cooling water to flow between the first plate 1 and the second plate 2. Since the second plate 2 needs to be repeatedly disassembled to replace different test modules, this self-sealing structure 4 allows the water passage 111 to automatically close when the second plate 2 is disassembled, helping to reduce the leakage of cooling water from the water passage 111 of the first plate 1 during disassembly.

[0055] In one embodiment of this application, the first plate 1 includes a plate body 11 and a limiting plate 12 detachably mounted on the side of the plate body 11 facing the second plate 2. The plate body 11 has a through hole that communicates with the limiting plate 12 to form a water passage hole 111. The plate body 11 refers to the plate-like structure constituting the main body of the first plate 1, and the limiting plate 12 refers to the plate-like structure mounted on the side of the plate body 11 facing the second plate 2 to limit the valve core 41. The plate body 11 has a through hole, and the limiting plate 12 also has a through hole; the through holes of both are interconnected to jointly form the water passage hole 111. A through hole refers to a channel that passes through the corresponding plate body. Detachable mounting means that the limiting plate 12 and the plate body 11 are connected by non-permanent connection methods such as bolts or snap-fits, allowing for separation and reassembly.

[0056] Understandably, the first plate 1 is configured as two parts: a main plate body 11 and a detachable limiting plate 12. The interconnected through holes of these two parts form a water passage 111. This allows components such as the valve core 41 and elastic element 42 of the self-sealing structure 4 to be installed into the water passage 111 when the limiting plate 12 is removed. The valve core 41 is then axially limited by the limiting plate 12. The detachable nature of the limiting plate 12 facilitates the installation, maintenance, and replacement of the valve core 41 and elastic element 42 within the water passage 111, improving the assemblability and maintainability of the self-sealing structure 4. Simultaneously, the limiting plate 12 limits the movement of the valve core 41 within the water passage 111 along its thickness, ensuring stable movement of the valve core 41 between the closed and open positions.

[0057] In this embodiment, by setting the first plate 1 as a plate body 11 and a detachable limiting plate 12, and forming a water passage hole 111 by the through holes of both, it can facilitate the installation and limiting of the self-sealing structure 4, improve the assemblability and maintainability of components such as valve core 41 and elastic element 42, and limit the valve core 41, which helps to ensure the stability of the valve core 41's movement stroke, thereby improving the reliability of the opening and closing action of the self-sealing structure 4.

[0058] In one embodiment of this application, the through hole of the limiting plate 12 is tapered towards the second plate 2. The valve core 41 includes a valve head 411 and a valve stem 412. The valve head 411 is tapered towards the second plate 2, and an elastic member 42 is sleeved on the valve stem 412. The tapering refers to the diameter of the through hole gradually decreasing towards the second plate 2, thus forming a tapered or stepped narrowing hole wall. The valve core 41 includes a valve head 411 and a valve stem 412. The valve head 411 refers to the head on the valve core 41 used to close the through hole, which is tapered towards the second plate 2, meaning the shape of the valve head 411 gradually narrows in this direction, allowing it to fit against the tapered through hole wall. The valve stem 412 refers to the rod-shaped portion connected to the valve head 411 and used to guide the movement of the valve core 41. The elastic member 42 is sleeved on the valve stem 412, meaning the elastic member 42 is fitted around the outer periphery of the valve stem 412.

[0059] Understandably, by setting both the through hole of the limiting plate 12 and the valve head 411 to taper towards the second plate 2, the valve head 411 can fit against the tapered wall of the through hole. When the elastic element 42 resets the valve core 41 to the closed position, the tapered valve head 411 presses against the tapered through hole wall, thereby sealing the water passage 111. This sealing method of mutual cooperation of tapered surfaces has a certain guiding and centering effect, which helps the valve head 411 to sit more accurately on the through hole wall during the reset process, improving the sealing fit effect when the valve core 41 is closed. The elastic element 42 is sleeved on the valve stem 412, so that the elastic element 42 can apply a reset elastic force to the valve core 41 along the axial direction of the valve stem 412. The valve stem 412 also guides the elastic element 42, which is beneficial to the stable movement of the valve core 41 along the thickness direction.

[0060] In this embodiment, by setting both the through hole of the limiting plate 12 and the valve head 411 to a tapered shape and cooperating with each other, the valve head 411 is tightly fitted to the wall of the through hole when the valve core 41 is in the closed position, which helps to improve the sealing performance when the water passage hole 111 is closed. At the same time, the guiding and centering effect of the tapered surface and the setting of the elastic element 42 sleeved on the valve stem 412 help to ensure the stability of the movement of the valve core 41 along the thickness direction and the accuracy of its reset, thereby improving the reliability of the opening and closing action of the self-sealing structure 4.

[0061] In one embodiment of this application, a convex ring 113 is provided on the inner wall of the through hole of the plate body 11. The valve stem 412 passes through the inner hole of the convex ring 113. An elastic element 42 is provided between the convex ring 113 and the valve head 411. A water passage 413 is provided in the valve core 41 to allow cooling water to flow through the convex ring 113. The convex ring 113 refers to a ring-shaped structure protruding from the inner wall of the through hole towards the center of the hole. The valve stem 412 passes through the inner hole of the convex ring 113, that is, the valve stem 412 passes through the central hole of the convex ring 113, thereby being guided and supported by the convex ring 113. The elastic element 42 is provided between the convex ring 113 and the valve head 411, that is, both ends of the elastic element 42 abut against the convex ring 113 and the valve head 411 respectively, thereby providing a restoring elastic force to the valve head 411. The valve core 41 is provided with a water passage 413. The water passage 413 refers to the flow channel opened inside the valve core 41 for cooling water to pass through, so that the cooling water can flow through the area where the convex ring 113 is located.

[0062] It is understandable that by providing a protruding ring 113 on the inner sidewall of the through hole in the main body 11 of the plate, the protruding ring 113 can serve as both a guide and support structure for the valve stem 412, guiding the valve stem 412 that passes through it, and a support seat for the elastic element 42, allowing the elastic element 42 to be positioned between the protruding ring 113 and the valve head 411, thereby providing a stable restoring force to the valve head 411. Since the protruding ring 113 occupies part of the space inside the through hole, it may obstruct the flow of cooling water. Therefore, by providing a water passage 413 inside the valve core 41, cooling water can flow through the area where the protruding ring 113 is located via the water passage 413 inside the valve core 41, which helps to ensure the smooth flow of cooling water in the water passage 111, and helps to maintain the flow capacity of the water passage 111 while achieving the self-sealing function.

[0063] In this embodiment, by providing a convex ring 113 on the inner wall of the through hole, and having the valve stem 412 pass through the inner hole of the convex ring 113, and the elastic element 42 disposed between the convex ring 113 and the valve head 411, the valve core 41 can be provided with guiding support and a point of force for the reset elasticity, which helps to improve the stability of the movement of the valve core 41 and the reliability of the reset. At the same time, by providing a water passage 413 in the valve core 41, the cooling water can flow smoothly through the area of ​​the convex ring 113, which helps to maintain the flow capacity of the water passage hole 111, thus taking into account both the self-sealing function and the smooth flow of cooling water.

[0064] In one embodiment of this application, the valve head 411 is provided with a third receiving groove 4111, and a third sealing ring 32 is provided within the third receiving groove 4111. The third receiving groove 4111 refers to a groove formed on the valve head 411 to accommodate and position a sealing element. The third sealing ring 32 is provided within the third receiving groove 4111 and serves as a sealing element to achieve a seal between the valve head 411 and the wall of the through hole; its shape is adapted to fit the third receiving groove 4111.

[0065] Understandably, since the valve head 411 and the through-hole wall are in contact to seal the water passage 111 when the valve core 41 is in the closed position, if the sealing relies solely on the contact surface between the valve head 411 and the through-hole wall, small gaps may exist between the contact surfaces due to factors such as machining precision, leading to cooling water leakage. Therefore, by providing a third receiving groove 4111 on the valve head 411 and installing a third sealing ring 32, when the valve core 41 returns to the closed position, the third sealing ring 32 undergoes elastic deformation under pressure and fills the small gap between the valve head 411 and the through-hole wall, thereby forming a sealing barrier between them, which helps improve the sealing performance of the water passage 111 when the valve core 41 is in the closed position. The third receiving groove 4111 also serves to accommodate and position the third sealing ring 32, helping to maintain the stability of the sealing ring position during repeated opening and closing of the valve core 41.

[0066] In this embodiment, by setting a third receiving groove 4111 on the valve head 411 and installing a third sealing ring 32, an elastic sealing structure can be established between the valve head 411 and the wall of the through hole. This is beneficial to improving the sealing performance of the water passage hole 111 when the valve core 41 is closed, reducing the leakage of cooling water in the closed state of the self-sealing structure 4. Furthermore, by setting the third receiving groove 4111, the third sealing ring 32 can be positioned, which helps to maintain the stability of the sealing effect during the repeated opening and closing of the valve core 41, thereby improving the reliability of the self-sealing structure 4 when it is closed.

[0067] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A water-cooling plate characterized by, include: The first plate (1) is provided with two water passage holes (111), one of which is used for water inlet and the other for water return; and, The second plate (2) has a first mounting side (21) and a second mounting side (22) in its thickness direction. The first mounting side (21) is provided with a mounting part (23) for mounting the test module. The second plate (2) is provided with a heat dissipation channel (24) which communicates with the two water passage holes (111) and is at least partially provided with the mounting part (23) so that the cooling water can cool the test module. The second mounting side (22) is detachably mounted on the first plate (1) so that the water-cooled plate can be adapted to different test modules.

2. The water cold plate of claim 1, wherein, The mounting part (23) includes a mounting boss, the mounting boss is provided with a heat dissipation groove (241), and the heat dissipation channel (24) includes the heat dissipation groove (241).

3. The water cold plate of claim 2, wherein, The upper surface of the mounting boss is provided with a first receiving groove (231) for the installation of the first sealing ring.

4. The water cold plate of claim 1, wherein, The second mounting side (22) is provided with a receiving groove (242), the heat dissipation channel (24) includes the receiving groove (242), the first plate (1) is covered on the receiving groove (242) to form a receiving cavity, and the water passage (111) is connected to the receiving cavity.

5. The water-cooled plate according to claim 4, characterized in that, Two receiving grooves (242) are provided, and the two receiving grooves (242) are respectively provided at both ends of the mounting part (23) and respectively corresponding to the two water passage holes (111).

6. The water-cooled plate according to claim 4, characterized in that, The mounting part (23) is provided with a heat dissipation groove (241), the length of the heat dissipation groove (241) in the width direction of the second plate (2) is L1, the length of the receiving groove (242) in the width direction of the second plate (2) is L1, wherein L1 < L2.

7. The water-cooled plate according to claim 4, characterized in that, A second sealing ring (31) is provided between the first plate (1) and the second plate (2), and the second sealing ring (31) surrounds the outside of the receiving groove (242).

8. The water-cooled plate according to claim 7, characterized in that, The first plate (1) is provided with a second receiving groove (112) on the side facing the second plate (2), and the second sealing ring (31) is provided in the second receiving groove (112).

9. The water-cooled plate according to claim 1, characterized in that, Each of the water passage holes (111) is located on the side of the first plate (1) away from the second plate (2).

10. The water-cooled plate according to claim 1, characterized in that, The water-cooled plate also includes a self-sealing structure (4), which comprises: The valve core (41) is movably installed in the water passage hole (111) along the thickness direction of the first plate (1). During its movement, the valve core (41) has a closed position that can close the water passage hole (111) and an open position that can open the water passage hole (111). An elastic element (42) is disposed between the valve core (41) and the inner wall of the water passage (111) to reset the valve core (41) to the closed position; and, The top (43) is located on the second plate (2) and is used to drive the valve core (41) to the open position when the second plate (2) is connected to the first plate (1).

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