Liquid-cooled radiators and liquid-cooled heat dissipation devices

Abstract

This invention relates to the field of liquid cooling technology, and discloses a liquid cooling radiator and a liquid cooling device. The liquid cooling radiator includes a liquid cooling plate and two connectors. The liquid cooling plate has a liquid inlet and a liquid outlet. The two connectors are connected to the edge of the liquid cooling plate and are respectively arranged corresponding to the liquid inlet and the liquid outlet. Each connector includes a first interface and multiple second interfaces, which are interconnected. The two first interfaces are respectively connected to the liquid inlet or the liquid outlet. The multiple second interfaces are arranged circumferentially around the connector at intervals, wherein at least one second interface faces the outer side of the edge of the liquid cooling plate, and at least one second interface faces the inner side of the edge of the liquid cooling plate. At least one second interface of each connector is used to communicate with a cooling pipe, and the remaining second interfaces of each connector are sealed by a sealing member. This invention can realize the connection of liquid cooling pipes in multiple directions, reduce the problems of bending or excessive length of liquid cooling pipe connections caused by space constraints, and improve applicability.

Description

Technical Field

[0001] This invention relates to the field of liquid cooling technology, specifically to liquid cooling radiators and liquid cooling devices. Background Technology

[0002] With the rapid development of technologies such as artificial intelligence, cloud computing, and big data, the amount of computing tasks handled by data centers has exploded, leading to a continuous increase in the operating power of core equipment such as servers, and consequently a significant increase in heat generation. This trend makes traditional air-cooling technologies unable to meet the ever-growing heat dissipation demands.

[0003] Liquid cooling technology effectively transfers the heat generated by internal server components during operation through the circulation of liquid. Compared with traditional air cooling, it has higher thermal conductivity and has significant advantages in handling heat dissipation of high power density electronic devices such as CPUs (Central Processing Units) and GPUs (Graphics Processing Units).

[0004] Liquid cooling technology encompasses various types, including liquid plate cooling, immersion cooling, and spray cooling. Among these, liquid plate cooling is a mature and widely used technology. It utilizes a liquid cooling plate made of highly thermally conductive metals such as copper or aluminum, which is tightly fitted to the surface of heat-generating components. Heat is transferred to the cooling liquid enclosed in a circulating pipeline via heat conduction. The coolant carries away heat during circulation and transfers it to the side loop, where the cooling system cools the coolant and dissipates the heat from the entire system. However, liquid cooling systems still face certain limitations for the diverse layout of circuit boards within computer cases, and there is still considerable room for optimization in terms of flexibility and applicability. Summary of the Invention

[0005] In view of this, the present invention provides a liquid cooling radiator and a liquid cooling heat dissipation device to solve the problem that liquid cooling radiators still face certain limitations for the diverse layout of circuit board components in the chassis, and there is still a lot of room for optimization in terms of flexibility and applicability.

[0006] In a first aspect, the present invention provides a liquid-cooled radiator, comprising a liquid-cooling plate and two connectors; the liquid-cooling plate is provided with an inlet and an outlet; the two connectors are both connected to the edge of the liquid-cooling plate and are respectively provided corresponding to the inlet and the outlet; each connector includes a first interface and a plurality of second interfaces, the first interface and the plurality of second interfaces being interconnected; the two first interfaces are respectively connected to the inlet or the outlet; the plurality of second interfaces are arranged sequentially at intervals around the circumference of the connector, and at least one of the second interfaces faces the outer side of the edge of the liquid-cooling plate, and at least one of the second interfaces faces the inner side of the edge of the liquid-cooling plate; and at least one second interface of each connector is used to communicate with a cooling pipe, and the remaining second interfaces of each connector are sealed by a sealing member.

[0007] By placing the connector at the edge of the liquid cooling plate, with at least one second interface facing outwards and at least one second interface facing inwards, the cooling pipes can be connected to the connector in multiple directions. The cooling pipes can be positioned either outwards or inwards from the edge of the liquid cooling plate, enhancing the flexibility of their placement on both sides of the plate edge. This reduces problems such as pipe bends or excessive lengths due to space constraints, significantly improving the adaptability and layout efficiency of the cooling pipes under different spatial constraints. It ensures optimized cooling pipe paths, reduces energy loss, and improves overall performance. The system's performance is improved; by using sealing components, unused secondary interfaces on each joint can be sealed, preventing coolant leakage along unintended paths and ensuring that the cooling medium flows only along the designed pipeline, effectively maintaining the system's cooling efficiency. Simultaneously, it enhances the overall reliability and safety of the system, reducing potential system failures and maintenance costs caused by leakage risks. Through the placement of multiple secondary interfaces and the effective application of sealing components, the layout flexibility of the cooling pipeline is optimized, improving the applicability of the liquid-cooled radiator, and effectively enhancing the sealing performance and overall performance of the liquid-cooled radiator.

[0008] In one optional embodiment, the connector includes a first connecting portion and a second connecting portion; the first connecting portion is connected to a liquid inlet or a liquid outlet; the first connecting portion has a first channel that communicates with a first interface; the second connecting portion is connected to the first connecting portion and protrudes from the liquid cooling plate, and a plurality of second interfaces are arranged around the second connecting portion; the second connecting portion has a second channel that communicates with the first channel and the plurality of second interfaces.

[0009] By setting the first connecting part, the connection between the connector and the liquid inlet or outlet is realized; since the second connecting part protrudes from the liquid cooling plate, by arranging multiple second interfaces around the second connecting part, the connection between the cooling pipe and the second interface on the outer side facing the edge of the liquid cooling plate can be realized, as well as the connection between the cooling pipe and the second interface on the inner side facing the edge of the liquid cooling plate can be realized. This can avoid interference with other components when the cooling pipe is connected to the second interface, and facilitate the connection between the cooling pipe and any second interface.

[0010] In one alternative embodiment, the second connecting part is a polygonal prism structure, and each side of the second connecting part is provided with at least one second interface.

[0011] Since each side of the second connection part is provided with at least one second interface, and the second connection part is a polygonal prism structure, the connection between the cooling pipe and the corresponding second interface in different directions can be effectively realized.

[0012] In one optional embodiment, the liquid cooling plate is provided with a receiving cavity, and the liquid inlet and liquid outlet are both connected to the receiving cavity and are arranged opposite to each other along a first direction; the receiving cavity is provided with multiple flow channels, which are arranged sequentially along a second direction; the flow channels extend along the first direction; the first direction is perpendicular to the second direction.

[0013] By setting up multiple flow channels, the coolant can flow evenly inside the liquid cooling plate, thereby effectively removing heat. Furthermore, the multiple flow channels not only ensure that the coolant covers a wider area, reducing heat accumulation, but also balance the flow and pressure distribution of the coolant, preventing local overheating or overcooling.

[0014] In one alternative implementation, the flow channel is S-shaped.

[0015] By designing the flow channel in an S-shape, the coolant flow path is extended, increasing not only the contact time and area between the coolant and the liquid cooling plate, but also ensuring a slow and orderly flow of coolant within the channel. This promotes more thorough heat transfer to the entire surface of the liquid cooling plate, effectively preventing localized overheating or overcooling, thus achieving a more uniform temperature distribution and improving heat dissipation performance and efficiency. This allows the liquid cooling plate to better meet various heat dissipation requirements. Furthermore, the curved structure of the S-shaped flow channel effectively reduces the coolant flow velocity, minimizing direct impact on the internal structure of the liquid cooler and reducing the risk of component damage caused by prolonged high-speed impact, thereby extending the service life of the liquid cooler. Meanwhile, the curved flow channel design reduces system pressure loss, allowing for coolant circulation with less pump power, which helps reduce overall energy consumption, maintain stable system operation, and reduce potential failures caused by pressure fluctuations. Furthermore, the S-shaped flow channel has a relatively simple structure, is easy to process and manufacture, reducing production costs, improving production efficiency, and enhancing the overall structural strength of the liquid cooling plate. The S-shaped flow channel also better adapts to the internal spatial layout of the liquid cooler. In some irregularly shaped or space-constrained cooling devices, the S-shaped flow channel can be flexibly arranged according to actual needs, improving space utilization and making the liquid cooler structure more compact.

[0016] In one alternative implementation, the flow channels are symmetrically distributed along the central axis of the second direction.

[0017] Because the flow channels are symmetrically distributed along the central axis of the second direction, the coolant in the liquid cooling plate can flow in both directions, breaking through the limitation of the single and fixed flow direction of the coolant in traditional liquid cooling plates. Users can select the inlet and outlet of the coolant according to the actual application, making it suitable for a variety of complex application scenarios, improving configuration flexibility, and effectively solving the problem of poor adaptability caused by the non-adjustable flow direction of current liquid cooling plates.

[0018] In one optional embodiment, the receiving cavity includes a first receiving space and a second receiving space that are interconnected. The first receiving space and the second receiving space are arranged sequentially along a first direction. In the direction near the first receiving space, the flow surface of the second receiving space gradually increases. The liquid inlet is connected to the second receiving space and is located on the side of the second receiving space away from the first receiving space. In the direction near the liquid inlet, the length of a plurality of flow channels arranged sequentially along a second direction gradually increases.

[0019] Because the flow surface of the second containment space gradually increases in the direction near the first containment space, and the inlet is located on the side of the second containment space away from the first containment space, the flow surface at the location of the inlet is relatively small. This ensures that the coolant is subjected to a certain throttling effect when it initially enters the second containment space, which helps to stabilize and control the initial flow rate and flow of the coolant. In the direction near the inlet, the length of the multiple flow channels arranged sequentially along the second direction gradually increases. As the coolant flows in from the inlet, it first enters the longer flow channel and then gradually enters the flow channel with decreasing length. This ensures that the coolant can orderly and gradually unfold its flow path in the second containment space, thereby effectively extending the residence time of the coolant in the liquid cooling plate and allowing for more sufficient heat exchange contact between the coolant and the liquid cooling plate.

[0020] In one optional embodiment, the receiving cavity includes a first receiving space and a third receiving space that are interconnected. The first receiving space and the third receiving space are arranged sequentially along a first direction. In the direction close to the first receiving space, the flow surface of the third receiving space gradually increases. The liquid outlet is connected to the third receiving space and is located on the side of the third receiving space away from the first receiving space. In the direction close to the liquid outlet, the length of a plurality of flow channels arranged sequentially along a second direction gradually increases.

[0021] Because the flow surface of the third containment space gradually increases in the direction near the first containment space, and the outlet is located on the side of the third containment space away from the first containment space, the flow surface at the outlet is relatively small. This ensures that when the coolant flows through the third containment space, it can be guided by the gradually increasing flow surface to converge orderly towards the outlet. Since the flow surface at the outlet is small, the coolant will naturally form a certain accumulation effect when it approaches this area, which helps to effectively discharge the coolant. In the direction near the outlet, the length of the multiple flow channels arranged sequentially along the second direction gradually increases. The gradually increasing flow channel length also helps to slow down the flow rate of the coolant when it approaches the outlet. This is not only conducive to the stable transfer of heat, but also reduces the fluid disturbance and energy loss that may be caused by excessive flow rate.

[0022] In one optional embodiment, the liquid cooling plate includes a heat-conducting base plate, a heat-conducting cover plate, and a sealing gasket; the heat-conducting base plate has a receiving groove; a flow channel is disposed within the receiving groove, and the height of the flow channel is lower than the height of the receiving groove; the heat-conducting cover plate is detachably connected to the heat-conducting base plate, and both the liquid inlet and the liquid outlet are disposed on the heat-conducting cover plate; the heat-conducting cover plate includes a cover plate body and a protrusion, and a joint is disposed on the side of the cover plate body away from the heat-conducting base plate; the protrusion protrudes from the side of the cover plate body near the heat-conducting base plate, is located within the receiving groove, and each sidewall of the protrusion abuts against the corresponding inner wall of the receiving groove, the protrusion and the receiving groove forming a receiving cavity; the sealing gasket is disposed between the cover plate body and the heat-conducting base plate, and is detachably connected to both the cover plate body and the heat-conducting base plate; the sealing gasket has a through-hole, the protrusion passes through the through-hole and abuts against the top surface of the flow channel; and each sidewall of the protrusion abuts against the corresponding inner wall of the through-hole.

[0023] By incorporating protrusions, the heat-conducting cover plate can be embedded into the heat-conducting base plate in a mortise-and-tenon structure, enhancing the mechanical connection strength between the two. Furthermore, since each sidewall of the protrusion abuts against the corresponding inner wall of the receiving groove, it helps form a sealed coolant receiving cavity, significantly reducing lateral coolant leakage problems that may be caused by structural gaps or manufacturing errors, thereby improving the overall reliability and durability of the liquid cooling plate. Because the sealing gasket has a through-hole, the protrusion passes through the through-hole and abuts against the top surface of the flow channel; and each sidewall of the protrusion abuts against the corresponding inner wall of the through-hole. This omnidirectional contact between the protrusion and the inner wall of the through-hole improves the sealing performance of the connection between the heat-conducting cover plate and the heat-conducting base plate. With the combined effect of multiple sealing mechanisms, the liquid cooling plate can withstand more complex working environments and endure long-term continuous operation.

[0024] Secondly, the present invention also provides a liquid cooling heat dissipation device, including the above-mentioned liquid cooling radiator and cooling pipeline; the cooling pipeline includes an inlet pipe and an outlet pipe, the inlet pipe being connected to the inlet of the liquid cooling radiator through a second interface; the outlet pipe being connected to the outlet of the liquid cooling radiator through a second interface.

[0025] In one optional embodiment, multiple liquid-cooled radiators are provided, and the multiple liquid-cooled radiators are connected in series through connecting pipes; in the direction of coolant flow, the inlet of the liquid-cooled radiator at the first end is connected to the inlet pipe, and the outlet of the liquid-cooled radiator at the last end is connected to the outlet pipe.

[0026] By connecting multiple liquid coolers in series, the number of connection points can be reduced, thereby simplifying the system structure and reducing the complexity of installation and maintenance. Furthermore, the coolant flows through each liquid cooling plate sequentially from the inlet to the outlet, with a clear and defined flow path, enabling more accurate prediction and control of the coolant flow state.

[0027] In one optional embodiment, at least four liquid-cooled radiators are provided, and the plurality of liquid-cooled radiators are arranged in two columns along a second direction; the first column includes two liquid-cooled radiators, and the second column includes at least two liquid-cooled radiators; the at least two liquid-cooled radiators in the second column are connected in series sequentially through connecting pipes; in the direction of coolant flow, the two liquid-cooled radiators at the beginning and end of the second column are arranged one-to-one with the two liquid-cooled radiators in the first column, and the liquid-cooled radiators in the first column and the corresponding liquid-cooled radiators in the second column are connected in parallel through two connecting pipes; in the direction of coolant flow, the liquid inlet of the liquid-cooled radiator at the beginning of the first column is connected to the liquid inlet pipe, and the liquid outlet of the liquid-cooled radiator at the end of the first column is connected to the liquid outlet pipe.

[0028] Because the liquid-cooled radiators in the first and second columns are connected in parallel via two connecting pipes, and at least two liquid-cooled radiators in the second column are connected in series via connecting pipes, the obstruction caused by the isolation components that may exist between the two liquid-cooled radiators in the first column can be avoided. This ensures smooth connection of the pipes between multiple liquid-cooled radiators and improves the flexibility and reliability of the pipe connection. Furthermore, because the liquid-cooled radiators in the first and second columns are connected in parallel via two connecting pipes, the coolant can flow into the two liquid-cooled radiators simultaneously and perform independent heat exchange. The influence of the preceding liquid-cooled radiator on the coolant temperature of the following liquid-cooled radiator is greatly reduced. This effectively solves the problem of the gradually weakening heat absorption capacity of the coolant in a single series connection method. This not only improves the temperature uniformity of the coolant in the entire liquid cooling system but also effectively enhances the overall heat dissipation efficiency. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present invention, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is a front view of the liquid-cooled heat sink according to an embodiment of the present invention;

[0031] Figure 2 This is an exploded view of the liquid-cooled heat sink according to an embodiment of the present invention;

[0032] Figure 3 This is a cross-sectional view of the liquid-cooled heat sink according to an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the connector structure according to an embodiment of the present invention;

[0034] Figure 5 This is a top view of the heat-conducting base plate according to an embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the structure of the heat-conducting base plate according to an embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the structure of the protruding part of the heat-conducting cover plate according to an embodiment of the present invention;

[0037] Figure 8 This is a schematic diagram of the structure of the heat-conducting cover plate according to an embodiment of the present invention;

[0038] Figure 9 A schematic diagram of a liquid cooling heat dissipation device according to an embodiment of the present invention, including a liquid cooling heat sink;

[0039] Figure 10 A schematic diagram of a second connection structure for a liquid cooling heat dissipation device according to an embodiment of the present invention, which includes a liquid cooling heat sink;

[0040] Figure 11 A schematic diagram of a third connection structure for the liquid cooling heat dissipation device of this invention, which includes a liquid cooling heat sink;

[0041] Figure 12 A schematic diagram of a first connection structure for a liquid cooling heat dissipation device with two liquid cooling heat sinks, as shown in an embodiment of the present invention;

[0042] Figure 13 This is a schematic diagram of a second connection structure for a liquid cooling heat dissipation device with two liquid cooling heat sinks, as shown in an embodiment of the present invention.

[0043] Figure 14 This is a schematic diagram of a third connection structure for a liquid cooling heat dissipation device with two liquid cooling heat sinks, as shown in an embodiment of the present invention.

[0044] Figure 15 This is a schematic diagram of the connection structure of the liquid cooling heat dissipation device with three liquid cooling heat sinks according to an embodiment of the present invention;

[0045] Figure 16 This is a schematic diagram of the connection structure of the liquid cooling heat dissipation device with four liquid cooling heat sinks according to an embodiment of the present invention;

[0046] Figure 17 This is a schematic diagram of another connection structure for the liquid cooling heat dissipation device of this invention, which includes four liquid cooling heat sinks.

[0047] Explanation of reference numerals in the attached figures:

[0048] 1. Liquid cooling plate; 11. Liquid inlet; 12. Liquid outlet; 131. First accommodating space; 132. Second accommodating space; 133. Third accommodating space; 14. Flow channel; 15. Heat-conducting base plate; 16. Heat-conducting cover plate; 161. Cover plate body; 162. Protrusion; 17. Sealing gasket; 171. Through-hole; 18. Connecting assembly; 181. Fastening nut; 182. Washer; 183. Fastening screw; 2. Connector; 21. First interface; 22. Second interface; 23. First connecting part; 24. Second connecting part; 241. First side; 242. Second side; 243. Third side; 3. Cooling pipe; 31. Liquid inlet pipe; 32. Liquid outlet pipe; 4. Sealing component; 5. Connecting pipe; 6. Isolation assembly. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] The following is combined with Figures 1 to 17 The following describes embodiments of the present invention.

[0051] According to an embodiment of the present invention, a liquid-cooled radiator is provided, comprising a liquid-cooled plate 1 and two connectors 2; the liquid-cooled plate 1 is provided with an inlet 11 and an outlet 12; the two connectors 2 are both connected to the edge of the liquid-cooled plate 1 and are respectively provided corresponding to the inlet 11 and the outlet 12; the connector 2 includes a first interface 21 and a plurality of second interfaces 22, the first interface 21 and the plurality of second interfaces 22 being interconnected; the two first interfaces 21 are respectively connected to the inlet 11 or the outlet 12; the plurality of second interfaces 22 are arranged sequentially at intervals around the circumference of the connector 2, and at least one of the second interfaces 22 faces the outer side of the edge of the liquid-cooled plate 1, and at least one of the second interfaces 22 faces the inner side of the edge of the liquid-cooled plate 1; and at least one second interface 22 of each connector 2 is used to communicate with a cooling pipe 3, and the remaining second interfaces 22 of each connector 2 are sealed by a sealing member 4.

[0052] By placing the connector 2 at the edge of the liquid cooling plate 1, with at least one second interface 22 facing outwards and inwards from the edge of the liquid cooling plate 1, the cooling pipe 3 can be connected to the connector 2 in multiple directions. The cooling pipe 3 can be positioned either outwards or inwards from the edge of the liquid cooling plate 1. This enhances the flexibility of the cooling pipe 3 in its placement on both sides of the edge of the liquid cooling plate 1, reducing problems such as pipe bends or excessive lengths due to space constraints. It significantly improves the adaptability and layout efficiency of the cooling pipe 3 under different spatial constraints, ensures optimized path design of the cooling pipe 3, and reduces energy loss. The overall system performance is improved. By setting the sealing component 4, the second interface 22 on each joint 2 that is not used by the current cooling pipeline 3 can be sealed, which not only prevents the coolant from leaking along unexpected paths and ensures that the cooling medium flows only along the designed pipeline, but also effectively maintains the cooling efficiency of the system. At the same time, it also improves the overall reliability and safety of the system and reduces system failures and maintenance costs that may be caused by leakage risks. By setting the positions of multiple second interfaces 22 and effectively applying the sealing component 4, the layout flexibility of the cooling pipeline 3 is optimized and the applicability of the liquid cooling radiator is improved. It also effectively enhances the sealing performance and overall performance of the liquid cooling radiator.

[0053] In one embodiment of this invention, the liquid inlet 11 and the liquid outlet 12 are located on the edge of the liquid cooling plate 1, and two connectors 2 are connected to the liquid inlet 11 and the liquid outlet 12 respectively. In another embodiment of this invention, the liquid inlet 11 and the liquid outlet 12 are located on the inner side of the edge of the liquid cooling plate 1, one connector 2 is connected to the liquid inlet 11 through a first pipe, and the other connector 2 is connected to the liquid outlet 12 through a second pipe.

[0054] Specifically, the sealing component 4 is a sealing screw, the second interface 22 is a threaded hole, the sealing component 4 is threadedly connected to the second interface 22, and the cooling pipe 3 is detachably connected to the second interface 22, which can be disassembled and switched at any time according to actual needs.

[0055] Specifically, after the cooling pipe 3 is connected to the connector 2, it is parallel to the liquid cooling plate 1 and will not occupy too much space in the direction perpendicular to the liquid cooling plate 1.

[0056] In one embodiment, the connector 2 includes a first connecting portion 23 and a second connecting portion 24; the first connecting portion 23 is connected to the liquid inlet 11 or the liquid outlet 12; the first connecting portion 23 has a first channel that communicates with the first interface 21; the second connecting portion 24 is connected to the first connecting portion 23 and protrudes from the liquid cooling plate 1, and a plurality of second interfaces 22 are arranged around the second connecting portion 24; the second connecting portion 24 has a second channel that communicates with the first channel and the plurality of second interfaces 22.

[0057] By setting the first connecting part 23, the connection between the connector 2 and the liquid inlet 11 or the liquid outlet 12 is realized; since the second connecting part 24 protrudes from the liquid cooling plate 1, by surrounding the second connecting part 24 with multiple second interfaces 22, the connection between the cooling pipe 3 and the second interface 22 on the outer side facing the edge of the liquid cooling plate 1 can be realized, as well as the connection between the cooling pipe 3 and the second interface 22 on the inner side facing the edge of the liquid cooling plate 1 can be realized. This can avoid interference with other components when the cooling pipe 3 is connected to the second interface 22, and helps to realize the connection between the cooling pipe 3 and any second interface 22.

[0058] In one embodiment, the second connecting portion 24 is a polygonal prism structure, and each side of the second connecting portion 24 is provided with at least one second interface 22.

[0059] Since each side of the second connecting part 24 is provided with at least one second interface 22, and the second connecting part 24 is a polygonal prism structure, the connection between the cooling pipe 3 and the corresponding second interface 22 in different directions can be effectively realized.

[0060] Specifically, the second connecting part 24 is a regular triangular prism structure with a sealed top. The first side 241 of the triangular prism faces the outer edge of the liquid cooling plate 1, while the second side 242 and the third side 243 both face the inner edge of the liquid cooling plate 1.

[0061] Specifically, each side of the second connecting part 24 is provided with a second interface 22.

[0062] In an alternative embodiment, each side of the second connection portion 24 may be provided with two, three or more second interfaces 22.

[0063] In alternative embodiments, the second connecting part 24 may also be a quadrangular prism structure, a pentagonal prism structure, or a hexagonal prism structure, etc.

[0064] Specifically, the diameter of the first channel is larger than the diameter of the second channel, and the first and second channels are arranged in a stepped manner.

[0065] Specifically, the first connecting part 23 has a cylindrical structure.

[0066] In one embodiment, the liquid cooling plate 1 is provided with a receiving cavity, and the liquid inlet 11 and the liquid outlet 12 are both connected to the receiving cavity, and the liquid inlet 11 and the liquid outlet 12 are arranged opposite to each other along a first direction; the receiving cavity is provided with a plurality of flow channels 14, and the plurality of flow channels 14 are arranged sequentially along a second direction; the flow channels 14 extend along the first direction; the first direction is perpendicular to the second direction.

[0067] By setting multiple flow channels 14, the coolant can flow evenly inside the liquid cooling plate 1, thereby effectively removing heat. Furthermore, the setting of multiple flow channels 14 can ensure that the coolant covers a wider area, reducing heat accumulation, and can also balance the flow and pressure distribution of the coolant, avoiding local overheating or overcooling.

[0068] Specifically, multiple flow channels 14 are closely arranged along the second direction.

[0069] Specifically, the multiple flow channels 14 are distributed at equal intervals.

[0070] Preferably, the cavity is further provided with multiple regulating columns, each corresponding to a single flow channel 14. The regulating columns are rotatably positioned at the inlet of the flow channel 14, and each column has a through-hole along a first direction, communicating with the flow channel 14. When the heat source is uniformly distributed, the flow cross-section formed by the through-hole and the sidewall of the flow channel 14 can be changed by controlling the regulating column to rotate at a certain angle, ensuring consistent flow rates in each flow channel 14 to meet the requirement of sufficient and uniform heat dissipation for the heating elements. When the heat source is not uniformly distributed or the power consumption of the heating elements on the cover plate surface varies significantly, the flow cross-section formed by the through-hole and the sidewall of the flow channel 14 can be changed by controlling the regulating column to rotate at a certain angle, increasing the flow rate in the flow channel 14 near areas with denser heat source distribution or higher power consumption, and decreasing the flow rate in the flow channel 14 near areas with sparser heat source distribution or lower power consumption. This rationally distributes the flow rate within each flow channel 14, achieving flow rate regulation of each flow channel 14 according to heat dissipation requirements.

[0071] Specifically, the bottom of the receiving cavity is equipped with a motor or other driving component, and each adjusting column is correspondingly set with one driving component; the adjusting column is fixed on the power output end of the driving component, and the driving component is communicatively connected to the control system. The control system controls the driving component to drive the adjusting column to rotate according to the heat dissipation requirements of the heat-generating element.

[0072] In one embodiment, the flow channel 14 is S-shaped.

[0073] By designing the flow channel 14 as an S-shape, the flow path of the coolant is extended, which not only increases the contact time and area between the coolant and the liquid cooling plate 1, but also ensures that the coolant flows slowly and orderly in the flow channel 14. This promotes more thorough heat transfer to the entire surface of the liquid cooling plate 1, effectively avoiding local overheating or overcooling, thus achieving a more uniform temperature distribution, improving heat dissipation performance and efficiency, and enabling the liquid cooling plate 1 to better meet various heat dissipation requirements. Furthermore, the curved structure of the S-shaped flow channel 14 effectively reduces the flow velocity of the coolant, reducing the direct impact of the coolant on the internal structure of the liquid-cooled radiator, reducing the risk of component damage caused by long-term high-speed impact, thereby extending the service life of the liquid-cooled radiator. Meanwhile, the curved flow channel 14 design reduces system pressure loss, enabling the circulation of coolant with a smaller pump power, which helps reduce the energy consumption of the entire heat dissipation system, maintain stable system operation, and reduce potential failures caused by pressure fluctuations. Furthermore, the S-shaped flow channel 14 has a relatively simple structure, is easy to process and manufacture, which not only reduces production costs but also improves production efficiency and enhances the overall structural strength of the liquid cooling plate 1. Moreover, the S-shaped flow channel 14 can better adapt to the internal spatial layout of the liquid cooling radiator. In some irregularly shaped or space-limited heat dissipation devices, the S-shaped flow channel 14 can be flexibly arranged according to actual needs, improving space utilization and making the structure of the liquid cooling radiator more compact.

[0074] In one embodiment, the flow channels 14 are symmetrically distributed along the central axis of the second direction.

[0075] Because the flow channels 14 are symmetrically distributed along the central axis of the second direction, the coolant in the liquid cooling plate 1 can flow in both directions, breaking through the limitation of the single and fixed flow direction of the coolant in the traditional liquid cooling plate 1. Users can select the inlet and outlet of the coolant according to the actual application, making it suitable for a variety of complex application scenarios, improving configuration flexibility, and effectively solving the problem of poor adaptability caused by the non-adjustable flow direction of the current liquid cooling plate 1.

[0076] Specifically, the inlet 11 and the outlet 12 are arranged opposite each other along the central axis of the first direction.

[0077] In one embodiment, the receiving cavity includes a first receiving space 131 and a second receiving space 132 that are interconnected. The first receiving space 131 and the second receiving space 132 are arranged sequentially along a first direction. In the direction close to the first receiving space 131, the flow surface of the second receiving space 132 gradually increases. The liquid inlet 11 is connected to the second receiving space 132 and is located on the side of the second receiving space 132 away from the first receiving space 131. In the direction close to the liquid inlet 11, the length of a plurality of flow channels 14 arranged sequentially along a second direction gradually increases.

[0078] Because the flow surface of the second containment space 132 gradually increases in the direction near the first containment space 131, and the inlet 11 is located on the side of the second containment space 132 away from the first containment space 131, the flow surface at the location of the inlet 11 is relatively small. This ensures that the coolant can be subjected to a certain throttling effect when it initially enters the second containment space 132, which helps to stabilize and control the initial flow rate and flow of the coolant. In the direction near the inlet 11, the length of the multiple flow channels 14 arranged sequentially along the second direction gradually increases. As the coolant flows in from the inlet 11, it first enters the longer flow channel 14, and then gradually enters the flow channel 14 with decreasing length. This ensures that the coolant can orderly and gradually unfold its flow path in the second containment space 132, thereby effectively extending the residence time of the coolant in the liquid cooling plate 1, so that there is more sufficient heat exchange contact between the coolant and the liquid cooling plate 1.

[0079] In one embodiment, the receiving cavity includes a first receiving space 131 and a third receiving space 133 that are interconnected. The first receiving space 131 and the third receiving space 133 are arranged sequentially along a first direction. In the direction close to the first receiving space 131, the flow surface of the third receiving space 133 gradually increases. The liquid outlet 12 is connected to the third receiving space 133 and is located on the side of the third receiving space 133 away from the first receiving space 131. In the direction close to the liquid outlet 12, the length of a plurality of flow channels 14 arranged sequentially along a second direction gradually increases.

[0080] Because the flow surface of the third receiving space 133 gradually increases in the direction near the first receiving space 131, and the outlet 12 is located on the side of the third receiving space 133 away from the first receiving space 131, the flow surface at the location of the outlet 12 is relatively small. This ensures that when the coolant flows through the third receiving space 133, it can be guided by the gradually increasing flow surface and converge orderly towards the outlet 12. Since the flow surface at the outlet 12 is relatively small, the coolant will naturally form a certain accumulation effect when it approaches this area, which helps to effectively discharge the coolant. In the direction near the outlet 12, the length of the multiple flow channels 14 arranged sequentially along the second direction gradually increases. The gradually increasing length of the flow channels 14 also helps to slow down the flow rate of the coolant when it approaches the outlet 12. This is not only conducive to the stable transfer of heat, but also reduces the fluid disturbance and energy loss that may be caused by excessive flow rate.

[0081] In one embodiment, the liquid cooling plate 1 includes a thermally conductive base plate 15, a thermally conductive cover plate 16, and a sealing gasket 17; the thermally conductive base plate 15 is provided with a receiving groove; a flow channel 14 is disposed in the receiving groove, and the height of the flow channel 14 is lower than the height of the receiving groove; the thermally conductive cover plate 16 is detachably connected to the thermally conductive base plate 15, and both the liquid inlet 11 and the liquid outlet 12 are disposed on the thermally conductive cover plate 16; the thermally conductive cover plate 16 includes a cover plate body 161 and a protrusion 162, and a connector 2 is disposed on the side of the cover plate body 161 away from the thermally conductive base plate 15; the protrusion 162 protrudes from the cover plate body. 161 is located near the heat-conducting base plate 15 and is situated within the receiving groove. Each sidewall of the protrusion 162 abuts against the corresponding inner wall of the receiving groove, and the protrusion 162 and the receiving groove enclose a receiving cavity. A sealing gasket 17 is disposed between the cover plate body 161 and the heat-conducting base plate 15 and is detachably connected to both the cover plate body 161 and the heat-conducting base plate 15. The sealing gasket 17 has a through-hole 171, through which the protrusion 162 passes and abuts against the top surface of the flow channel 14. Each sidewall of the protrusion 162 abuts against the corresponding inner wall of the through-hole 171.

[0082] By providing the protrusion 162, the heat-conducting cover plate 16 can be embedded into the heat-conducting base plate 15 in a mortise-and-tenon structure, enhancing the mechanical connection strength between the two. Furthermore, since each sidewall of the protrusion 162 abuts against the corresponding inner wall of the receiving groove, it helps to form a sealed coolant receiving cavity, greatly reducing lateral coolant leakage problems that may be caused by structural gaps or manufacturing errors, thereby improving the overall reliability and durability of the liquid cooling plate 1. Because the sealing gasket 17 has a through-hole 171, the protrusion 162 passes through the through-hole 171 and abuts against the top surface of the flow channel 14; and each sidewall of the protrusion 162 abuts against the corresponding inner wall of the through-hole 171. Through the omnidirectional contact between the protrusion 162 and the inner wall of the through-hole 171, the sealing performance of the connection between the heat-conducting cover plate 16 and the heat-conducting base plate 15 is improved. Under the combined action of multiple sealing mechanisms, the liquid cooling plate 1 can withstand more complex working environments and can withstand long-term continuous operation.

[0083] In a specific embodiment, the liquid cooling plate 1, the heat-conducting base plate 15, the heat-conducting cover plate 16, and the sealing gasket 17 are all rectangular structures. Four first through holes are provided at the four corners of the heat-conducting base plate 15; four second through holes are provided at the four corners of the sealing gasket 17; and four second through holes are provided at the four corners of the heat-conducting cover plate 16. The liquid cooling plate 1 also includes four sets of connecting assemblies 18, which are respectively located at the four corners of the liquid cooling plate 1. Each connecting assembly 18 includes a fastening nut 181, a washer 182, and a fastening screw 183. The fastening screw 183 passes sequentially through the first through hole, the second through hole, the third through hole, and the washer 182, and is threadedly connected to the fastening screw 183, thereby achieving a detachable connection between the heat-conducting base plate 15, the heat-conducting cover plate 16, and the sealing gasket 17.

[0084] Specifically, the heat-conducting cover plate 16 has four first grooves at its four corners, and the four first grooves are all located on the side of the heat-conducting cover plate 16 away from the heat-conducting base plate 15; each first groove is corresponding to a first through hole and a washer 182; the first through hole and the first groove are connected, and the washer 182 is located in the first groove.

[0085] Specifically, the heat-conducting cover plate 16 has two second grooves arranged opposite each other along the central axis of the first direction, and the liquid inlet 11 and the liquid outlet 12 are located in the two second grooves respectively.

[0086] Specifically, the inlet 11 and the outlet 12 are respectively protruding from the bottom of the two second grooves, and the first connecting parts 23 of the two connectors 2 are respectively sleeved on the outer periphery of the inlet 11 and the outlet 12.

[0087] Specifically, the heat-conducting cover plate 16 and the heat-conducting base plate 15 are made of materials with high thermal conductivity such as copper or aluminum, and the sealing gasket 17 is made of rubber.

[0088] Specifically, driven by the circulating pump, the coolant flows into the receiving cavity of the liquid cooling plate 1 through the cooling pipe 3 from the inlet 11. The coolant slowly flows from the inlet 11 to the flow channel 14. Under the action of the curved structure of the S-shaped flow channel 14, it makes full contact with the liquid cooling plate 1 and absorbs the heat transferred to the liquid cooling plate 1 by the heat-generating element. After sufficient heat exchange with the S-shaped flow channel 14, the coolant temperature rises, flows out from the S-shaped flow channel 14 and gathers at the outlet 12, and then flows out through the cooling pipe 3, directly circulating to the heat exchanger of the heat dissipation system for heat exchange, or flowing into the next stage of heat dissipation device to continue heat dissipation.

[0089] According to an embodiment of the present invention, another aspect provides a liquid cooling heat dissipation device, including the above-mentioned liquid cooling radiator and cooling pipe 3; the cooling pipe 3 includes an inlet pipe 31 and an outlet pipe 32, the inlet pipe 31 is connected to the inlet port 11 of the liquid cooling radiator through a second interface 22; the outlet pipe 32 is connected to the outlet port 12 of the liquid cooling radiator through a second interface 22.

[0090] Specifically, when a liquid-cooled radiator is provided, the inlet pipe 31 and the outlet pipe 32 are connected to the inlet 11 and the outlet 12 of the liquid-cooled radiator, respectively; for example Figure 9 As shown, the inlet pipe 31 and the outlet pipe 32 are respectively connected to the first side surface 241 of the second connecting part 24 of the corresponding two connectors 2; as Figure 10 As shown, the inlet pipe 31 is connected to the third side 243 of the second connecting part 24 of the corresponding connector 2, and the outlet pipe 32 is connected to the second side 242 of the second connecting part 24 of the corresponding connector 2; as Figure 11As shown, the inlet pipe 31 and the outlet pipe 32 are respectively connected to the second side surface 242 of the second connecting part 24 of the corresponding two connectors 2.

[0091] In an alternative embodiment, the inlet pipe 31 may be connected to the second side 242 of the second connecting portion 24 of the corresponding connector 2, and the outlet pipe 32 may be connected to the third side 243 of the second connecting portion 24 of the corresponding connector 2. In another alternative embodiment, the inlet pipe 31 and the outlet pipe 32 may be connected to the third side 243 of the second connecting portion 24 of the two corresponding connectors 2, respectively.

[0092] In one embodiment, multiple liquid-cooled radiators are provided, and the multiple liquid-cooled radiators are connected in series through connecting pipes 5; in the direction of coolant flow, the inlet 11 of the liquid-cooled radiator at the first end is connected to the inlet pipe 31, and the outlet 12 of the liquid-cooled radiator at the end is connected to the outlet pipe 32.

[0093] By setting up multiple liquid-cooled radiators connected in series, the number of connection points of the liquid-cooled radiators can be reduced, thereby simplifying the system structure and reducing the complexity of installation and maintenance; and the coolant flows through each liquid-cooled plate 1 from the inlet to the outlet in sequence, with a clear and well-defined flow path, which can more accurately predict and control the flow state of the coolant.

[0094] Specifically, such as Figures 12 to 14 As shown, there are two liquid-cooled radiators. The inlet pipe 31 is connected to the inlet 11 of the first liquid-cooled radiator, and the outlet pipe 32 is connected to the outlet 12 of the last liquid-cooled radiator. One end of the connecting pipe 5 is connected to the outlet 12 of the first liquid-cooled radiator, and the other end of the connecting pipe 5 is connected to the inlet 11 of the last liquid-cooled radiator. Figure 12 As shown, the inlet pipe 31 and the outlet pipe 32 are respectively connected to the first side surface 241 of the second connecting part 24 of the corresponding two connectors 2, and both ends of the connecting pipe 5 are respectively connected to the first side surface 241 of the second connecting part 24 of the corresponding two connectors 2; as shown Figure 13 As shown, the inlet pipe 31 is connected to the third side 243 of the second connecting part 24 of the corresponding connector 2, and the outlet pipe 32 is connected to the second side 242 of the second connecting part 24 of the corresponding connector 2; one end of the connecting pipe 5 is connected to the second side 242 of the second connecting part 24 of the corresponding connector 2, and the other end is connected to the third side 243 of the second connecting part 24 of the corresponding connector 2; as shown... Figure 14 As shown, the inlet pipe 31 and the outlet pipe 32 are respectively connected to the third side 243 of the second connecting part 24 of the corresponding two connectors 2, and the two ends of the connecting pipe 5 are respectively connected to the first side 241 of the second connecting part 24 of the corresponding two connectors 2.

[0095] Specifically, such as Figure 15 As shown, the server has an internal isolation component 6 and three liquid cooling radiators. Two liquid cooling radiators are located on each side of the isolation component 6, and the remaining liquid cooling radiator is located adjacent to the isolation component 6. The inlet pipe 31 and the outlet pipe 32 are respectively connected to the two liquid cooling radiators located on both sides of the isolation component 6. Furthermore, the two liquid cooling radiators located on both sides of the isolation component 6 are connected in series with the remaining liquid cooling radiator.

[0096] In one embodiment, at least four liquid-cooled radiators are provided, and the multiple liquid-cooled radiators are arranged in two columns along a second direction; the first column includes two liquid-cooled radiators, and the second column includes at least two liquid-cooled radiators; the at least two liquid-cooled radiators in the second column are connected in series via connecting pipes 5; in the direction of coolant flow, the two liquid-cooled radiators at the beginning and end of the second column are arranged one-to-one with the two liquid-cooled radiators in the first column, and the liquid-cooled radiators in the first column and the corresponding liquid-cooled radiators in the second column are connected in parallel via two connecting pipes 5; in the direction of coolant flow, the liquid inlet 11 of the liquid-cooled radiator at the beginning of the first column is connected to the liquid inlet pipe 31, and the liquid outlet 12 of the liquid-cooled radiator at the end of the first column is connected to the liquid outlet pipe 32.

[0097] Because the liquid-cooled radiators in the first column and the corresponding liquid-cooled radiators in the second column are connected in parallel through two connecting pipes 5, and at least two liquid-cooled radiators in the second column are connected in series through connecting pipes 5, the obstruction caused by the isolation components 6 that may exist between the two liquid-cooled radiators in the first column can be avoided, ensuring smooth connection of the pipeline between multiple liquid-cooled radiators and improving the flexibility and reliability of the pipeline connection. In addition, because the liquid-cooled radiators in the first column and the corresponding liquid-cooled radiators in the second column are connected in parallel through two connecting pipes 5, the coolant can flow into the two liquid-cooled radiators at the same time and carry out independent heat exchange. The influence of the liquid-cooled radiator in the previous stage on the coolant temperature of the liquid-cooled radiator in the next stage is greatly reduced, which can effectively solve the problem of the gradual weakening of the heat absorption capacity of the coolant in the single series connection method. This not only improves the temperature uniformity of the coolant in the entire liquid cooling system, but also effectively enhances the overall heat dissipation efficiency.

[0098] Specifically, such as Figure 16 and Figure 17As shown, the server has an internal isolation component 6, with two liquid coolers in the first column positioned on either side of the isolation component 6. There are four liquid coolers. The inlet 11 of the first column's liquid cooler is connected to the inlet 11 of the corresponding liquid cooler in the second column via a connecting pipe 5. The outlet 12 of the first column's liquid cooler is connected to the outlet 12 of the corresponding liquid cooler in the second column via another connecting pipe 5. One end of the connecting pipe 5 is connected to the second side 242 of the second connecting portion 24 of the corresponding connector 2, and the other end is connected to the third side 243 of the second connecting portion 24 of the corresponding connector 2. In the direction of coolant flow, the outlet 12 of the first liquid cooler in the second column is connected to the inlet 11 of the last liquid cooler in the second column via another connecting pipe 5, and both ends of the connecting pipe 5 are connected to the first side 241 of the corresponding two second connecting portions 24.

[0099] Specifically, such as Figure 16 As shown, the inlet pipe 31 and the outlet pipe 32 are respectively connected to the third side 243 of the second connecting part 24 of the corresponding two connectors 2.

[0100] Specifically, such as Figure 17 As shown, the inlet pipe 31 and the outlet pipe 32 are respectively connected to the first side surface 241 of the second connecting part 24 of the corresponding two connectors 2.

[0101] Specifically, each liquid cooler is a heat dissipation unit, which can be connected by pipes in parallel, series, or series-parallel configurations to achieve efficient heat dissipation under different spatial layouts and heat dissipation power consumption requirements within the server chassis, thereby improving configuration flexibility.

[0102] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A liquid-cooled heat spreader, comprising: The application relates to a liquid cooling plate. The liquid cooling plate (1) is provided with an inlet (11) and an outlet (12); two joints (2) are connected to the edges of the liquid cooling plate (1) and are respectively arranged in correspondence with the inlet (11) and the outlet (12); the joint (2) comprises a first interface (21) and a plurality of second interfaces (22), the first interface (21) and the plurality of second interfaces (22) are in communication with each other, and the two first interfaces (21) are respectively in communication with the inlet (11) and the outlet (12); the plurality of second interfaces (22) are arranged in sequence and at intervals along the circumference of the joint (2), at least one of the second interfaces (22) faces the outside of the edge of the liquid cooling plate (1), at least one of the second interfaces (22) faces the inside of the edge of the liquid cooling plate (1), at least one of the second interfaces (22) of each joint (2) is used for being in communication with a cooling pipeline (3), and the remaining second interfaces (22) of each joint (2) are blocked by a sealing member (4); The liquid cooling plate (1) is provided with an accommodation cavity, the inlet (11) and the outlet (12) are in communication with the accommodation cavity, and the inlet (11) and the outlet (12) are arranged oppositely along a first direction; a plurality of flow channels (14) are arranged in the accommodation cavity and are arranged in sequence along a second direction; the flow channels (14) extend along the first direction; the first direction is perpendicular to the second direction; The flow channels (14) are S-shaped; The flow channels (14) are symmetrically distributed along the central axis of the second direction; The accommodation cavity comprises a first accommodation space (131) and a second accommodation space (132) which are in communication with each other, the first accommodation space (131) and the second accommodation space (132) are arranged in sequence along the first direction, the flow area of the second accommodation space (132) gradually increases in the direction close to the first accommodation space (131), the inlet (11) is in communication with the second accommodation space (132) and is arranged on the side of the second accommodation space (132) away from the first accommodation space (131), and the lengths of the plurality of flow channels (14) arranged in sequence along the second direction gradually increase in the direction close to the inlet (11); The accommodation cavity further comprises a first accommodation space (131) and a third accommodation space (133) which are in communication with each other, the first accommodation space (131) and the third accommodation space (133) are arranged in sequence along the first direction, the flow area of the third accommodation space (133) gradually increases in the direction close to the first accommodation space (131), the outlet (12) is in communication with the third accommodation space (133) and is arranged on the side of the third accommodation space (133) away from the first accommodation space (131), and the lengths of the plurality of flow channels (14) arranged in sequence along the second direction gradually increase in the direction close to the outlet (12). The joint (2) comprises: ​ 2. The liquid-cooled heat spreader of claim 1, wherein, ​ A first connecting part (23) is connected with the liquid inlet (11) or the liquid outlet (12); the first connecting part (23) is internally provided with a first channel, and the first channel is in communication with the first interface (21); A second connecting part (24) is connected with the first connecting part (23) and is arranged protruding from the liquid cooling plate (1), and a plurality of second interfaces (22) are arranged on the second connecting part (24) in a surrounding manner; the second connecting part (24) is internally provided with a second channel, and the second channel is in communication with the first channel and the plurality of second interfaces (22).

3. The liquid-cooled heat spreader of claim 2, wherein, The second connecting part (24) is a multi-prism structure, and each side surface of the second connecting part (24) is provided with at least one second interface (22).

4. The liquid-cooled heat spreader of claim 1, wherein, The liquid cooling plate (1) comprises: A heat-conducting bottom plate (15) is provided with a receiving groove; the flow channel (14) is arranged in the receiving groove, and the height of the flow channel (14) is lower than the height of the receiving groove; A heat-conducting cover plate (16) is detachably connected with the heat-conducting bottom plate (15), and the liquid inlet (11) and the liquid outlet (12) are arranged on the heat-conducting cover plate (16); The heat-conducting cover plate (16) comprises a cover plate body (161) and a protruding part (162), and the connector (2) is arranged on one side of the cover plate body (161) away from the heat-conducting bottom plate (15); The protruding part (162) is arranged protruding on one side of the cover plate body (161) close to the heat-conducting bottom plate (15) and is located in the receiving groove, and each side wall of the protruding part (162) abuts against the corresponding inner wall of the receiving groove, and the protruding part (162) and the receiving groove form a receiving cavity in a surrounding manner; A sealing gasket (17) is arranged between the cover plate body (161) and the heat-conducting bottom plate (15) and is detachably connected with the cover plate body (161) and the heat-conducting bottom plate (15); The sealing gasket (17) is provided with a through hole (171), the protruding part (162) abuts against the top surface of the flow channel (14) through the through hole (171), and each side wall of the protruding part (162) abuts against the corresponding inner wall of the through hole (171).

5. A liquid cooling heat sink, characterized by, Comprise: The liquid cooling radiator of any one of claims 1 to 4; The cooling pipeline (3) comprises a liquid inlet pipe (31) and a liquid outlet pipe (32), the liquid inlet pipe (31) is in communication with the liquid inlet (11) of the liquid cooling radiator through the second interface (22), and the liquid outlet pipe (32) is in communication with the liquid outlet (12) of the liquid cooling radiator through the second interface (22).

6. The liquid cooling heat sink of claim 5, wherein, A plurality of liquid cooling radiators are arranged, and the plurality of liquid cooling radiators are sequentially and in series communicated through a connecting pipe (5); in the flow direction of the cooling liquid, the liquid inlet (11) of the liquid cooling radiator at the first end is in communication with the liquid inlet pipe (31), and the liquid outlet (12) of the liquid cooling radiator at the last end is in communication with the liquid outlet pipe (32).

7. The liquid cooling heat sink of claim 5, wherein, The liquid cooling radiator is provided with at least four liquid cooling radiators, and the liquid cooling radiators are arranged in two columns along a second direction; the first column comprises two liquid cooling radiators, and the second column comprises at least two liquid cooling radiators; the at least two liquid cooling radiators in the second column are sequentially and serially communicated through connecting pipes (5); in the flow direction of the cooling liquid, the two liquid cooling radiators located at the front end and the tail end of the second column are arranged in one-to-one correspondence with the two liquid cooling radiators of the first column, and the liquid cooling radiators of the first column and the corresponding liquid cooling radiators of the second column are parallelly communicated through two connecting pipes (5); in the flow direction of the cooling liquid, the liquid inlet (11) of the liquid cooling radiator located at the front end of the first column is communicated with the liquid inlet pipe (31), and the liquid outlet (12) of the liquid cooling radiator located at the tail end of the first column is communicated with the liquid outlet pipe (32).

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