Liquid cooling radiator and liquid cooling radiating device

Abstract

The invention relates to the technical field of liquid cooling heat dissipation, and discloses a liquid cooling radiator and a liquid cooling heat dissipation device.The liquid cooling radiator comprises a liquid cooling plate and two connectors; the liquid cooling plate is provided with a liquid inlet and a liquid outlet; the two joints are connected to the edge of the liquid cooling plate and are arranged corresponding to the liquid inlet and the liquid outlet respectively; the joint comprises a first interface and a plurality of second interfaces, and the first interface and the plurality of second interfaces are communicated with each other; the two first interfaces are respectively communicated with the liquid inlet or the liquid outlet; the multiple second interfaces are sequentially arranged at intervals in the circumferential direction of the connector, 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 joint is used for communicating with a cooling pipeline, and the other second interfaces of each joint are plugged through sealing parts, so that connection of the liquid cooling pipes in multiple directions can be realized, the problems of pipeline connection bending or overlength of the liquid cooling pipes caused by space limitation and the like are reduced, and the applicability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid cooling and heat dissipation, and in particular to a liquid cooling radiator and a liquid cooling and heat dissipation device. Background Art

[0002] With the rapid development of technologies such as artificial intelligence, cloud computing, and big data, the amount of computing tasks carried by data centers has shown explosive growth, resulting in a continuous increase in the operating power of core equipment such as servers, and a significant increase in the heat generated. This trend makes it difficult for traditional air cooling technology to meet the growing heat dissipation needs.

[0003] Liquid cooling technology effectively transfers the heat generated by the internal components of the server during operation through the circulation of liquid. Compared with traditional air cooling, it has higher thermal conductivity and has significant advantages in dealing with the heat dissipation of high-power density electronic devices such as CPU (central processing unit) and GPU (graphics processing unit).

[0004] Liquid cooling technology specifically covers liquid plate cooling, immersion cooling, and spray cooling. Among them, liquid plate cooling technology is a highly mature and widely used liquid cooling technology. This technology uses liquid cooling plates made of high thermal conductivity metal materials such as copper and aluminum with excellent thermal conductivity. It fits tightly to the surface of heat-generating components and transfers heat to the cooling liquid enclosed in the circulation pipeline by heat conduction. The coolant takes away the heat during the circulation process and transfers it to the side loop. Finally, the cooling system cools the coolant and discharges the heat from the entire system. However, for the diverse layout of board devices in the chassis, liquid cooling radiators still face certain limitations, and there is still a lot of room for optimization in terms of flexibility and applicability. Summary of the invention

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

[0006] In the first aspect, the present invention provides a liquid-cooled radiator, comprising a liquid cooling plate and two joints; the liquid cooling plate is provided with a liquid inlet and a liquid outlet; the two joints are connected to the edge of the liquid cooling plate and are respectively arranged corresponding to the liquid inlet and the liquid outlet; the joint comprises a first interface and a plurality of second interfaces, and the first interface and the plurality of second interfaces are interconnected; the two first interfaces are respectively connected to the liquid inlet or the liquid outlet; the plurality of second interfaces are arranged in sequence at intervals around the circumference of the joint, and at least one of the second interfaces 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; and at least one second interface of each joint is used to communicate with a cooling pipeline, and the remaining second interfaces of each joint are sealed by a sealing member.

[0007] By arranging the joint at the edge of the liquid cooling plate, and at least one second interface facing the outside of the edge of the liquid cooling plate, and at least one second interface facing the inside of the edge of the liquid cooling plate, the cooling pipeline can be connected to the joint in multiple directions, and the cooling pipeline can be arranged on the outside of the edge of the liquid cooling plate, or on the inside of the edge of the liquid cooling plate, thereby enhancing the freedom of flexible arrangement of the cooling pipeline on both sides of the edge of the liquid cooling plate, reducing problems such as bending or excessive length of pipeline connections caused by space limitations, and significantly enhancing the adaptability and layout efficiency of the cooling pipeline under different space constraints, ensuring the path optimization of the cooling pipeline, reducing energy consumption loss, and improving the overall The performance of the whole system; through the setting of the sealing piece, the second interface on each joint that is not used by the current cooling pipeline can be blocked, which not only prevents the leakage of coolant on unexpected paths, but also ensures that the cooling medium only flows along the designed pipeline, effectively maintaining the cooling efficiency of the system; at the same time, it also improves the overall reliability and safety of the system, and reduces the system failure and maintenance costs that may be caused by leakage risks; through the setting of the positions of multiple second interfaces and the effective application of sealing pieces, not only the layout flexibility of the cooling pipeline is optimized, the applicability of the liquid-cooled radiator is improved, but also the sealing and overall performance of the liquid-cooled radiator are effectively enhanced.

[0008] In an optional embodiment, the connector includes a first connecting part and a second connecting part; the first connecting part is connected to the liquid inlet or the liquid outlet; a first channel is provided in the first connecting part, and the first channel is connected to the first interface; the second connecting part is connected to the first connecting part and protrudes from the liquid cooling plate, and a plurality of second interfaces are arranged around the second connecting part; a second channel is provided in the second connecting part, and the second channel is connected to the first channel and the plurality of second interfaces.

[0009] By setting the first connecting part, the connection between the joint and the liquid inlet or the liquid outlet is achieved; since the second connecting part protrudes from the liquid cooling plate, by surrounding the second connecting part with multiple second interfaces, the connection between the cooling line and the second interface on the outside of the edge of the liquid cooling plate can be achieved, and the connection between the cooling line and the second interface on the inside of the edge of the liquid cooling plate can be achieved, which can avoid interference with other components when the cooling line is connected to the second interface, and help to achieve the connection between the cooling line and any second interface.

[0010] In an optional embodiment, the second connecting portion is a polygonal column structure, and each side surface of the second connecting portion is provided with at least one second interface.

[0011] Since each side surface of the second connecting portion is provided with at least one second interface, and the second connecting portion is a multi-prism structure, the connection between the cooling pipeline and the corresponding second interface in different directions can be effectively achieved.

[0012] In an optional embodiment, a accommodating cavity is provided in the liquid cooling plate, the liquid inlet and the liquid outlet are both connected to the accommodating cavity, and the liquid inlet and the liquid outlet are arranged relatively to each other along the first direction; a plurality of flow channels are provided in the accommodating cavity, and the plurality of flow channels are arranged in sequence along the second direction; the flow channels extend along the first direction; and 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 taking away the heat; and the setting of multiple flow channels can not only ensure that the coolant covers a wider area and reduce heat accumulation, but also balance the flow and pressure distribution of the coolant to avoid local overheating or overcooling.

[0014] In an optional embodiment, the flow channel is S-shaped.

[0015] By setting the flow channel to be S-shaped, the flow of the coolant can be extended, which not only increases the contact time and area between the coolant and the liquid cooling plate, but also ensures that the coolant flows slowly and orderly in the flow channel, promotes a more complete transfer of heat to the entire surface of the liquid cooling plate, and effectively avoids local overheating or overcooling, thereby achieving a more uniform temperature distribution, improving the heat dissipation performance and efficiency, and enabling the liquid cooling plate to better meet various heat dissipation requirements; and the curved structure of the S-shaped flow channel effectively reduces the flow rate of the coolant, reduces the direct impact of the coolant on the internal structure of the liquid cooling radiator, and reduces the risk of component damage caused by long-term high-speed impact, thereby extending the service life of the liquid cooling radiator. ; At the same time, the curved flow channel design also reduces the pressure loss of the system, and the circulation of the coolant can be driven by using a smaller pump power, which helps to reduce the energy consumption of the entire cooling system, maintain the stable operation of the system, and reduce potential failures caused by pressure fluctuations; and the structure of the S-type flow channel is relatively simple and 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; and the S-type flow channel can better adapt to the spatial layout inside the liquid-cooled radiator. In some cooling devices with irregular shapes or limited space, the S-type flow channel can be flexibly arranged according to actual needs, which improves space utilization and makes the structure of the liquid-cooled radiator more compact.

[0016] In an optional embodiment, the flow channels are symmetrically distributed along the central axis of the second direction.

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

[0018] In an optional embodiment, the accommodating chamber includes a first accommodating space and a second accommodating space that are interconnected, and the first accommodating space and the second accommodating space are arranged sequentially along a first direction, and the flow surface of the second accommodating space gradually increases in a direction approaching the first accommodating space; the liquid inlet is connected to the second accommodating space and is arranged on a side of the second accommodating space away from the first accommodating space; in a direction approaching the liquid inlet, the lengths of multiple flow channels arranged sequentially along the second direction gradually increase.

[0019] Since the flow surface of the second accommodating space gradually increases in the direction approaching the first accommodating space, and the liquid inlet is arranged on the side of the second accommodating space away from the first accommodating space, the flow surface at the position where the liquid inlet is located is small, which can ensure that the coolant can be subjected to a certain throttling effect when it initially enters the second accommodating space, which is helpful to stabilize and control the initial flow velocity and flow rate of the coolant; and in the direction approaching the liquid inlet, the lengths of the multiple flow channels arranged in sequence along the second direction gradually increase. As the coolant flows in from the liquid inlet, it first enters the flow channel with a longer length, and then gradually enters the flow channel with a decreasing length, ensuring that the coolant can orderly and gradually expand its flow path in the second accommodating space, thereby effectively extending the residence time of the coolant in the liquid cooling plate, so that there is more sufficient heat exchange contact between the coolant and the liquid cooling plate.

[0020] In an optional embodiment, the accommodating chamber includes a first accommodating space and a third accommodating space which are interconnected, and the first accommodating space and the third accommodating space are arranged in sequence along a first direction, and the flow surface of the third accommodating space gradually increases in a direction close to the first accommodating space; the liquid outlet is connected to the third accommodating space and is arranged on a side of the third accommodating space away from the first accommodating space; in a direction close to the liquid outlet, the lengths of multiple flow channels arranged in sequence along the second direction gradually increase.

[0021] Since the flow surface of the third accommodating space gradually increases in the direction approaching the first accommodating space, and the liquid outlet is arranged on the side of the third accommodating space away from the first accommodating space, the flow surface at the position where the liquid outlet is located is relatively small, ensuring that the coolant can converge toward the liquid outlet in an orderly manner under the guidance of the gradually increasing flow surface when flowing through the third accommodating space. Since the flow surface at the liquid outlet is relatively small, the coolant will naturally form a certain accumulation effect when approaching this area, which is conducive to the effective discharge of the coolant; and in the direction approaching the liquid outlet, the length of the multiple flow channels arranged in sequence along the second direction gradually increases. The gradually increasing flow channel length also helps the coolant to slow down the flow rate when approaching the liquid outlet, which is not only beneficial to the stable transfer of heat, but also can reduce the fluid disturbance and energy loss that may be caused by excessive flow rate.

[0022] In an 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 is provided with a receiving groove; the flow channel is arranged in 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 the liquid inlet and the liquid outlet are both arranged on the heat-conducting cover plate; the heat-conducting cover plate includes a cover plate body and a protrusion, and the joint is arranged on the side of the cover plate body away from the heat-conducting base plate; the protrusion is protrudingly arranged on the side of the cover plate body close to the heat-conducting base plate, located in the receiving groove, and each side wall of the protrusion abuts against the inner wall corresponding to the receiving groove, and the protrusion and the receiving groove enclose a receiving cavity; the sealing gasket is arranged between the cover plate body and the heat-conducting base plate, and is detachably connected to the cover plate body and the heat-conducting base plate; a through hole is provided on the sealing gasket, and the protrusion passes through the through hole and abuts against the top surface of the flow channel; and each side wall of the protrusion abuts against the inner wall corresponding to the through hole.

[0023] By providing the protrusion, the heat-conducting cover plate can be embedded in the heat-conducting base plate in a form similar to a mortise and tenon structure, thereby enhancing the mechanical connection strength between the two. Moreover, since each side wall of the protrusion abuts against the inner wall corresponding to the receiving groove, it helps to form a closed cooling liquid receiving chamber, greatly reducing the lateral cooling liquid leakage problem that may be caused by structural gaps or manufacturing errors, thereby improving the overall reliability and durability of the liquid cooling plate. Since the sealing gasket is provided with a through hole, the protrusion passes through the through hole and abuts against the top surface of the flow channel. Moreover, each side wall of the protrusion abuts against the inner wall corresponding to the through hole. Through the all-round contact between the protrusion and the inner wall of the through hole, the sealing of the connection between the heat-conducting cover plate and the heat-conducting base plate is improved. With the joint action of multiple sealing mechanisms, the liquid cooling plate can face more complex working environments and can withstand the test of long-term continuous operation.

[0024] In the second aspect, the present invention also provides a liquid-cooled heat dissipation device, comprising the above-mentioned liquid-cooled radiator and a cooling pipeline; the cooling pipeline comprises a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe is connected to the liquid inlet of the liquid-cooled radiator through a second interface; the liquid outlet pipe is connected to the liquid outlet of the liquid-cooled radiator through the second interface.

[0025] In an optional embodiment, a plurality of liquid-cooled radiators are provided, and the plurality of liquid-cooled radiators are connected in series in sequence through connecting pipes; in the flow direction of the coolant, the liquid inlet of the liquid-cooled radiator located at the head end is connected to the liquid inlet pipe, and the liquid outlet of the liquid-cooled radiator located at the end is connected to the liquid outlet pipe.

[0026] By setting up multiple liquid-cooled radiators connected in series in sequence, the connection nodes 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 cooling plate from the inlet to the outlet in sequence, and the flow path is clear and definite, which can more accurately predict and control the flow state of the coolant.

[0027] In an optional embodiment, at least four liquid-cooled radiators are provided, and the multiple liquid-cooled radiators are arranged in two rows along the second direction; the first row includes two liquid-cooled radiators, and the second row includes at least two liquid-cooled radiators; the at least two liquid-cooled radiators in the second row are connected in series in sequence through connecting pipes; in the flow direction of the coolant, the two liquid-cooled radiators located at the head end and the end of the second row are arranged one-to-one with the two liquid-cooled radiators in the first row, and the liquid-cooled radiators in the first row are connected in parallel with the corresponding liquid-cooled radiators in the second row through two connecting pipes; in the flow direction of the coolant, the liquid inlet of the liquid-cooled radiator in the first row located at the head end is connected to the liquid inlet pipe, and the liquid outlet of the liquid-cooled radiator in the first row located at the end is connected to the liquid outlet pipe.

[0028] Since the liquid-cooled radiators in the first column are connected in parallel with the corresponding liquid-cooled radiators in the second column through two connecting pipes, and at least two liquid-cooled radiators in the second column are connected in series in sequence through the connecting pipes, the obstacles caused by the isolation components that may exist between the two liquid-cooled radiators in the first column can be avoided, ensuring the smooth connection of the pipes between the multiple liquid-cooled radiators, and improving the flexibility and reliability of the pipe connection; and the liquid-cooled radiators in the first column are connected in parallel with the corresponding liquid-cooled radiators in the second column through two connecting pipes, the coolant can flow into the two liquid-cooled radiators at the same time, and perform independent heat exchange respectively. The influence of the previous stage of the liquid-cooled radiator on the coolant temperature of the next stage of the liquid-cooled radiator 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, which not only improves the temperature uniformity of the coolant in the entire liquid-cooled heat dissipation system, but also effectively enhances the overall heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related technologies, the drawings required for use in the specific embodiments or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a front view of a liquid cooling radiator according to an embodiment of the present invention;

[0031] Figure 2 An exploded view of a liquid cooling radiator according to an embodiment of the present invention;

[0032] Figure 3 is a cross-sectional view of a liquid cooling radiator according to an embodiment of the present invention;

[0033] Figure 4 It is a schematic structural diagram of a joint according to an embodiment of the present invention;

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

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

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

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

[0038] Fig. 9 A schematic structural diagram of a liquid cooling radiator provided for a liquid cooling heat dissipation device according to an embodiment of the present invention;

[0039] Fig.10 A schematic diagram of a second connection structure of a liquid cooling radiator provided with a liquid cooling radiator according to an embodiment of the present invention;

[0040] Fig.11 A schematic diagram of a third connection structure of a liquid cooling radiator provided with a liquid cooling radiator according to an embodiment of the present invention;

[0041] Fig.12 A schematic diagram of a first connection structure of two liquid cooling radiators provided in a liquid cooling heat dissipation device according to an embodiment of the present invention;

[0042] Fig.13 A schematic diagram of a second connection structure of two liquid cooling radiators provided in a liquid cooling heat dissipation device according to an embodiment of the present invention;

[0043] Fig.14 A schematic diagram of a third connection structure of two liquid cooling radiators provided in the liquid cooling heat dissipation device according to an embodiment of the present invention;

[0044] Fig.15 A schematic diagram of the connection structure of three liquid cooling radiators provided in the liquid cooling heat dissipation device according to an embodiment of the present invention;

[0045] Fig.16 A schematic diagram of the connection structure of four liquid cooling radiators provided in the liquid cooling heat dissipation device according to an embodiment of the present invention;

[0046] Fig.17 A schematic diagram of another connection structure of a liquid cooling heat dissipation device according to an embodiment of the present invention having four liquid cooling radiators.

[0047] Description of reference numerals:

[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 bottom 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. Joint; 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 pipeline; 31. Liquid inlet pipe; 32. Liquid outlet pipe; 4. Sealing member; 5. Connecting pipe; 6. Isolation assembly. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0050] Combine the following Figures 1 to 17 , describing an embodiment of the present invention.

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

[0052] By arranging the joint 2 at the edge of the liquid cooling plate 1, and at least one second interface 22 facing the outside of the edge of the liquid cooling plate 1, and at least one second interface 22 facing the inside of the edge of the liquid cooling plate 1, the cooling pipeline 3 can be connected to the joint 2 in multiple directions, and the cooling pipeline 3 can be arranged on the outside of the edge of the liquid cooling plate 1 or on the inside of the edge of the liquid cooling plate 1, thereby enhancing the freedom of flexible arrangement of the cooling pipeline 3 on both sides of the edge of the liquid cooling plate 1, reducing problems such as pipeline connection bending or excessive length due to space limitation, significantly enhancing the adaptability and layout efficiency of the cooling pipeline 3 under different space constraints, ensuring the path optimization of the cooling pipeline 3, and reducing energy loss. The performance of the overall system is improved; through the setting of the sealing member 4, the second interface 22 on each joint 2 that is not used by the current cooling pipeline 3 can be blocked, which not only prevents the leakage of the coolant on an unexpected path, ensures that the cooling medium only flows along the designed pipeline, and 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 the system failure and maintenance costs that may be caused by the risk of leakage; through the setting of the positions of multiple second interfaces 22 and the effective application of the sealing member 4, not only the layout flexibility of the cooling pipeline 3 is optimized, the applicability of the liquid-cooled radiator is improved, but also the sealing and overall performance of the liquid-cooled radiator are effectively enhanced.

[0053] In one implementation of this embodiment, the liquid inlet 11 and the liquid outlet 12 are arranged at the edge of the liquid cooling plate 1, and the two joints 2 are respectively connected to the liquid inlet 11 and the liquid outlet 12. In another implementation of this embodiment, the liquid inlet 11 and the liquid outlet 12 are arranged on the inner side of the edge of the liquid cooling plate 1, one joint 2 is connected to the liquid inlet 11 through a first pipeline, and the other joint 2 is connected to the liquid outlet 12 through a second pipeline.

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

[0055] Specifically, after the cooling pipeline 3 is connected to the joint 2 , it is parallel to the liquid cooling plate 1 and does not occupy too much space in a 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; a first channel is provided in the first connecting portion 23, and the first channel is connected to the first interface 21; the second connecting portion 24 is connected to the first connecting portion 23, and is arranged protruding from the liquid cooling plate 1, and a plurality of second interfaces 22 are arranged around the second connecting portion 24; a second channel is provided in the second connecting portion 24, and the second channel is connected to the first channel and the plurality of second interfaces 22.

[0057] By setting the first connecting portion 23, the connection between the joint 2 and the liquid inlet 11 or the liquid outlet 12 is achieved; since the second connecting portion 24 is protruding from the liquid cooling plate 1, by surrounding a plurality of second interfaces 22 on the second connecting portion 24, the connection between the cooling line 3 and the second interface 22 on the outer side of the edge of the liquid cooling plate 1 can be achieved, and the connection between the cooling line 3 and the second interface 22 on the inner side of the edge of the liquid cooling plate 1 can also be achieved, which can avoid interference with other components when the cooling line 3 is connected to the second interface 22, and helps to achieve the connection between the cooling line 3 and any second interface 22.

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

[0059] Since at least one second interface 22 is disposed on each side of the second connection portion 24 and the second connection portion 24 is a multi-prism structure, the connection between the cooling pipeline 3 and the corresponding second interface 22 in different directions can be effectively achieved.

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

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

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

[0063] In an alternative embodiment, the second connecting portion 24 may also be a quadrangular prism structure, a pentagonal prism structure, a hexagonal prism structure, or the like.

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

[0065] Specifically, the first connecting portion 23 is a cylindrical structure.

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

[0067] By setting up multiple flow channels 14, the coolant can flow evenly inside the liquid cooling plate 1, thereby effectively taking away the heat; and the setting of multiple flow channels 14 can not only ensure that the coolant covers a wider area and reduce heat accumulation, but also balance the flow and pressure distribution of the coolant to avoid the occurrence of local overheating or overcooling.

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

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

[0070] Preferably, a plurality of adjusting columns are further provided in the accommodating cavity, and the plurality of adjusting columns are respectively arranged in one-to-one correspondence with the plurality of flow channels 14; the adjusting columns are rotatably arranged at the entrance of the flow channel 14, and a flow hole is penetrated on the adjusting columns along the first direction, and the flow hole is connected with the flow channel 14; when the heat source is evenly distributed, the flow section formed by the flow hole and the side wall surface of the flow channel 14 can be changed by controlling the adjusting columns to rotate by a certain angle, so that the flow rate of each flow channel 14 remains consistent to meet the demand for sufficient and uniform heat dissipation of the heating element; when the heat source is unevenly distributed or the power consumption of each heating element on the surface of the cover plate is quite different, the flow section formed by the flow hole and the side wall surface of the flow channel 14 can be changed by controlling the adjusting columns to rotate by a certain angle, so that the flow rate of the flow channel 14 close to the area with denser heat source distribution or larger power consumption of the element is increased, and the flow rate of the flow channel 14 close to the area with sparser heat source distribution or smaller power consumption of the element is reduced, so as to reasonably distribute the flow in each flow channel 14 and realize the control of the flow rate of each flow channel 14 according to the heat dissipation demand.

[0071] Specifically, a driving component such as a motor is provided at the bottom of the accommodating cavity, and each adjusting column is arranged corresponding to a driving component; the adjusting column is fixed on the power output end of the driving component, and the driving component is communicated with the control system, and the control system controls the driving component to drive the adjusting column to rotate according to the heat dissipation requirements of the heating element.

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

[0073] By setting the flow channel 14 to be S-shaped, the flow of the coolant can be 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, promotes more sufficient heat transfer to the entire surface of the liquid cooling plate 1, and effectively avoids local overheating or overcooling, thereby achieving a more uniform temperature distribution, improving the heat dissipation performance and heat dissipation efficiency, so that the liquid cooling plate 1 can better meet various heat dissipation requirements; and the curved structure of the S-shaped flow channel 14 effectively reduces the flow rate of the coolant, reduces the direct impact of the coolant on the internal structure of the liquid cooling radiator, reduces the risk of component damage caused by long-term high-speed impact, and thus extends the service life of the liquid cooling radiator. ; At the same time, the curved flow channel 14 design also reduces the pressure loss of the system, and the circulation of the coolant can be driven by using a smaller pump power, which helps to reduce the energy consumption of the entire cooling system, maintain the stable operation of the system, and reduce potential failures caused by pressure fluctuations; and the structure of the S-shaped flow channel 14 is relatively simple and easy to process and manufacture, which not only reduces the production cost, but also improves the production efficiency and enhances the overall structural strength of the liquid cooling plate 1; and the S-shaped flow channel 14 can better adapt to the spatial layout inside the liquid-cooled radiator. In some cooling devices with irregular shapes or limited space, the S-shaped flow channel 14 can be flexibly arranged according to actual needs, which improves space utilization and makes the structure of the liquid-cooled radiator more compact.

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

[0075] Since the flow channel 14 is symmetrically distributed along the central axis of the second direction, the coolant of the liquid cooling plate 1 can realize bidirectional flow, breaking through the limitation of the single fixed flow direction of the coolant in the traditional liquid cooling plate 1. The user can select the inlet and outlet of the coolant according to the actual application, so that it can be suitable for a variety of complex application scenarios, improve the configuration flexibility, and effectively solve the problem of poor adaptability of the current liquid cooling plate 1 due to the unadjustable flow direction.

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

[0077] In one embodiment, the accommodating chamber includes a first accommodating space 131 and a second accommodating space 132 which are interconnected. The first accommodating space 131 and the second accommodating space 132 are arranged sequentially along a first direction, and the flow surface of the second accommodating space 132 gradually increases in the direction close to the first accommodating space 131; the liquid inlet 11 is connected to the second accommodating space 132 and is arranged on a side of the second accommodating space 132 away from the first accommodating space 131; in the direction close to the liquid inlet 11, the lengths of multiple flow channels 14 arranged sequentially along the second direction gradually increase.

[0078] Since the flow surface of the second accommodating space 132 gradually increases in the direction close to the first accommodating space 131, and the liquid inlet 11 is arranged on the side of the second accommodating space 132 away from the first accommodating space 131, the flow surface at the position where the liquid inlet 11 is located is small, which can ensure that the coolant can be subjected to a certain throttling effect when it initially enters the second accommodating space 132, which is helpful to stabilize and control the initial flow velocity and flow rate of the coolant; and in the direction close to the liquid inlet 11, the lengths of the multiple flow channels 14 arranged in sequence along the second direction gradually increase. As the coolant flows in from the liquid inlet 11, it first enters the flow channel 14 with a longer length, and then gradually enters the flow channel 14 with a decreasing length, ensuring that the coolant can orderly and gradually expand its flow path in the second accommodating 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 accommodating chamber includes a first accommodating space 131 and a third accommodating space 133 which are interconnected. The first accommodating space 131 and the third accommodating space 133 are arranged sequentially along the first direction. In the direction close to the first accommodating space 131, the flow surface of the third accommodating space 133 gradually increases; the liquid outlet 12 is connected to the third accommodating space 133 and is arranged on the side of the third accommodating space 133 away from the first accommodating space 131; in the direction close to the liquid outlet 12, the lengths of multiple flow channels 14 arranged sequentially along the second direction gradually increase.

[0080] Since the flow surface of the third accommodating space 133 gradually increases in the direction approaching the first accommodating space 131, and the liquid outlet 12 is arranged on the side of the third accommodating space 133 away from the first accommodating space 131, the flow surface at the position where the liquid outlet 12 is located is relatively small, ensuring that the coolant can be guided by the gradually increasing flow surface and converge in an orderly manner toward the liquid outlet 12 when flowing through the third accommodating space 133. Since the flow surface at the liquid outlet 12 is relatively small, the coolant will naturally form a certain accumulation effect when approaching this area, which is conducive to the effective discharge of the coolant; and in the direction approaching the liquid outlet 12, the length of the multiple flow channels 14 arranged in sequence along the second direction gradually increases. The gradually increasing length of the flow channels 14 also helps the coolant to slow down the flow rate when approaching the liquid outlet 12, which is not only conducive to the stable transfer of heat, but also can reduce 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 heat-conducting base plate 15, a heat-conducting cover plate 16 and a sealing gasket 17; the heat-conducting base 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; the heat-conducting cover plate 16 is detachably connected to the heat-conducting base plate 15, and the liquid inlet 11 and the liquid outlet 12 are both arranged on the heat-conducting cover plate 16; the heat-conducting cover plate 16 includes a cover plate body 161 and a protrusion 162, and the joint 2 is arranged on the side of the cover plate body 161 away from the heat-conducting base plate 15; the protrusion 162 is protrudingly arranged on the cover plate body 161 is close to one side of the heat-conducting base plate 15 and is located in the receiving groove, and each side wall of the protrusion 162 abuts against the inner wall corresponding to the receiving groove, and the protrusion 162 and the receiving groove enclose a receiving cavity; the sealing gasket 17 is arranged between the cover body 161 and the heat-conducting base plate 15, and is detachably connected to the cover body 161 and the heat-conducting base plate 15; a through hole 171 is provided on the sealing gasket 17, and the protrusion 162 passes through the through hole 171 and abuts against the top surface of the flow channel 14; and each side wall of the protrusion 162 abuts against the inner wall corresponding to the through hole 171.

[0082] By providing the protrusion 162, the heat-conducting cover plate 16 can be embedded in the heat-conducting base plate 15 in a form similar to a mortise and tenon structure, thereby enhancing the mechanical connection strength between the two. Moreover, since each side wall of the protrusion 162 abuts against the inner wall corresponding to the receiving groove, it is helpful to form a closed cooling liquid receiving chamber, greatly reducing the lateral cooling liquid leakage problem that may be caused by structural gaps or manufacturing errors, thereby improving the overall reliability and durability of the liquid cooling plate 1; since the sealing gasket 17 is provided with 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 side wall of the protrusion 162 abuts against the inner wall corresponding to the through hole 171, and the sealing of the connection between the heat-conducting cover plate 16 and the heat-conducting base plate 15 is improved through the all-round contact between the protrusion 162 and the inner wall of the through hole 171. Under the joint action of multiple sealing mechanisms, the liquid cooling plate 1 can face more complex working environments and can withstand the test of 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, and four first through holes are respectively provided at the four corners of the heat-conducting base plate 15; four second through holes are respectively provided at the four corners of the sealing gasket 17; four second through holes are respectively provided at the four corners of the heat-conducting cover plate 16; the liquid cooling plate 1 also includes four groups of connecting components 18, and the four groups of connecting components 18 are respectively arranged at the four corners of the liquid cooling plate 1; the connecting component 18 includes a fastening nut 181, a washer 182 and a fastening screw 183; the fastening screw 183 passes through the first through hole, the second through hole, the third through hole and the washer 182 in sequence and is threadedly connected with the fastening screw 183 to realize a detachable connection between the heat-conducting base plate 15, the heat-conducting cover plate 16 and the sealing gasket 17.

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

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

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

[0087] Specifically, the heat-conducting cover plate 16 and the heat-conducting bottom 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, the coolant flows from the liquid inlet 11 into the accommodating cavity of the liquid cooling plate 1 through the cooling pipe 3 under the drive of the circulation pump, and the coolant slowly flows from the liquid inlet 11 to the flow channel 14. Under the action of the curved structure of the S-shaped flow channel 14, the coolant fully contacts the liquid cooling plate 1 and absorbs the heat transferred from the heating element to the liquid cooling plate 1. After fully contacting and exchanging heat with the S-shaped flow channel 14, the temperature of the coolant rises, flows out of the S-shaped flow channel 14 and converges at the liquid outlet 12, and then flows out through the cooling pipe 3, and directly circulates to the heat exchanger of the heat dissipation system for heat exchange, or flows into the next-level heat dissipation device to continue heat dissipation.

[0089] According to an embodiment of the present invention, on the other hand, a liquid cooling device is also provided, comprising the above-mentioned liquid cooling radiator and a cooling pipeline 3; the cooling pipeline 3 comprises a liquid inlet pipe 31 and a liquid outlet pipe 32, the liquid inlet pipe 31 is connected to the liquid inlet 11 of the liquid cooling radiator through the second interface 22; the liquid outlet pipe 32 is connected to the liquid outlet 12 of the liquid cooling radiator through the second interface 22.

[0090] Specifically, when the liquid cooling radiator is provided with one, the liquid inlet pipe 31 and the liquid outlet pipe 32 are respectively connected to the liquid inlet port 11 and the liquid outlet port 12 of the liquid cooling radiator; Fig. 9 As shown, the liquid inlet pipe 31 and the liquid outlet pipe 32 are respectively connected to the first side surfaces 241 of the second connecting portions 24 of the two corresponding connectors 2; Fig.10 As shown, the liquid inlet pipe 31 is connected to the third side surface 243 of the second connecting portion 24 of the corresponding connector 2, and the liquid outlet pipe 32 is connected to the second side surface 242 of the second connecting portion 24 of the corresponding connector 2; Fig.11As shown, the liquid inlet pipe 31 and the liquid outlet pipe 32 are respectively connected to the second side surfaces 242 of the second connecting portions 24 of the two corresponding connectors 2 .

[0091] In an alternative embodiment, the liquid inlet pipe 31 may be connected to the second side surface 242 of the second connecting portion 24 of the corresponding joint 2, and the liquid outlet pipe 32 may be connected to the third side surface 243 of the second connecting portion 24 of the corresponding joint 2; in another alternative embodiment, the liquid inlet pipe 31 and the liquid outlet pipe 32 may be respectively connected to the third side surfaces 243 of the second connecting portions 24 of the two corresponding joints 2.

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

[0093] By arranging multiple liquid-cooled radiators to be connected in series in sequence, the connection nodes 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 cooling plate 1 from the inlet to the outlet in sequence, and the flow path is clear and definite, which can more accurately predict and control the flow state of the coolant.

[0094] Specifically, Figure 12 to Figure 14 As shown, there are two liquid cooling radiators, the liquid inlet pipe 31 is connected to the liquid inlet 11 of the liquid cooling radiator at the head end, the liquid outlet pipe 32 is connected to the liquid outlet 12 of the liquid cooling radiator at the tail end, one end of the connecting pipe 5 is connected to the liquid outlet 12 of the liquid cooling radiator at the head end, and the other end of the connecting pipe 5 is connected to the liquid inlet 11 of the liquid cooling radiator at the tail end. Fig.12 As shown, the liquid inlet pipe 31 and the liquid outlet pipe 32 are respectively connected to the first side surfaces 241 of the second connecting portions 24 of the two corresponding connectors 2, and the two ends of the connecting pipe 5 are respectively connected to the first side surfaces 241 of the second connecting portions 24 of the two corresponding connectors 2; Fig.13 As shown, the liquid inlet pipe 31 is connected to the third side surface 243 of the second connecting portion 24 of the corresponding connector 2, and the liquid outlet pipe 32 is connected to the second side surface 242 of the second connecting portion 24 of the corresponding connector 2; one end of the connecting pipe 5 is connected to the second side surface 242 of the second connecting portion 24 of the corresponding connector 2, and the other end is connected to the third side surface 243 of the second connecting portion 24 of the corresponding connector 2; as shown in FIG. Fig.14 As shown, the liquid inlet pipe 31 and the liquid outlet pipe 32 are respectively connected to the third side surfaces 243 of the second connection parts 24 of the two corresponding connectors 2, and the two ends of the connecting pipe 5 are respectively connected to the first side surfaces 241 of the second connection parts 24 of the two corresponding connectors 2.

[0095] Specifically, Fig.15 As shown, an isolation component 6 is provided inside the server, and three liquid-cooling radiators are provided, two of which are provided on both sides of the isolation component 6, and the remaining liquid-cooling radiator is arranged adjacent to the isolation component 6; the liquid inlet pipe 31 and the liquid outlet pipe 32 are respectively connected to the two liquid-cooling radiators located on both sides of the isolation component 6; and 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 the 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 in sequence through connecting pipes 5; in the flow direction of the coolant, the two liquid-cooled radiators at the head end and the tail 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 are connected in parallel with the corresponding liquid-cooled radiators in the second column through two connecting pipes 5; in the flow direction of the coolant, the liquid inlet 11 of the liquid-cooled radiator at the head end of the first column is connected to the liquid inlet pipe 31, and the liquid outlet 12 of the liquid-cooled radiator at the tail end of the first column is connected to the liquid outlet pipe 32.

[0097] Since the liquid-cooled radiator in the first column is connected in parallel with the corresponding liquid-cooled radiator in the second column through two connecting pipes 5, and at least two liquid-cooled radiators in the second column are connected in series in sequence through the connecting pipes 5, the obstruction caused by the isolation component 6 that may exist between the two liquid-cooled radiators in the first column can be avoided, ensuring the smooth connection of the pipelines between the multiple liquid-cooled radiators, and improving the flexibility and reliability of the pipeline connection; and the liquid-cooled radiator in the first column is connected in parallel with the liquid-cooled radiator corresponding to the second column through two connecting pipes 5, the coolant can flow into the two liquid-cooled radiators at the same time, and perform independent heat exchange respectively. The influence of the previous stage liquid-cooled radiator on the coolant temperature of the next stage liquid-cooled radiator 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, which not only improves the temperature uniformity of the coolant in the entire liquid-cooled heat dissipation system, but also effectively enhances the overall heat dissipation efficiency.

[0098] Specifically, Fig.16 and Fig.17As shown, an isolation component 6 is provided inside the server, and two liquid cooling radiators located in the first row are respectively arranged on both sides of the isolation component 6. There are four liquid cooling radiators, and the liquid inlet 11 of the liquid cooling radiator in the first row is connected to the liquid inlet 11 of the corresponding liquid cooling radiator in the second row through a connecting pipe 5, and the liquid outlet 12 of the liquid cooling radiator in the first row is connected to the liquid outlet 12 of the corresponding liquid cooling radiator in the second row through another connecting pipe 5; and one end of the connecting pipe 5 is connected to the second side surface 242 of the second connecting portion 24 of the corresponding joint 2, and the other end is connected to the third side surface 243 of the second connecting portion 24 of the corresponding joint 2; in the flow direction of the coolant, the liquid outlet 12 of the liquid cooling radiator at the head end of the second row is connected to the liquid inlet 11 of the liquid cooling radiator at the end of the second row through another connecting pipe 5, and the two ends of the corresponding connecting pipe 5 are respectively connected to the first side surfaces 241 of the two corresponding second connecting portions 24.

[0099] Specifically, Fig.16 As shown, the liquid inlet pipe 31 and the liquid outlet pipe 32 are respectively connected to the third side surfaces 243 of the second connecting portions 24 of the two corresponding connectors 2 .

[0100] Specifically, Fig.17 As shown, the liquid inlet pipe 31 and the liquid outlet pipe 32 are respectively connected to the first side surfaces 241 of the second connecting portions 24 of the two corresponding connectors 2 .

[0101] Specifically, each liquid-cooled radiator is a heat dissipation unit, which can achieve efficient heat dissipation under different space layouts and heat dissipation power consumption requirements in the server chassis through parallel, series or series-parallel freely matched pipe connection methods, thereby improving configuration flexibility.

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

Claims

1. A liquid cooling radiator, characterized in that: include: A liquid cooling plate (1) is provided with a liquid inlet (11) and a liquid outlet (12); Two connectors (2) are connected to the edge of the liquid cooling plate (1) and are respectively arranged corresponding to the liquid inlet (11) and the liquid outlet (12); the connector (2) comprises 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 liquid inlet (11) or the liquid outlet (12); A plurality of second interfaces (22) are arranged in sequence and spaced apart around the circumference of the joint (2), and at least one of the second interfaces (22) faces the outer side of the edge of the liquid cooling plate (1), and at least one of the second interfaces (22) faces the inner side of the edge of the liquid cooling plate (1); and at least one of the second interfaces (22) of each of the joints (2) is used to communicate with the cooling pipeline (3), and the remaining second interfaces (22) of each of the joints (2) are sealed by a sealing member (4).

2. The liquid cooling radiator according to claim 1, characterized in that: The joint (2) comprises: A first connecting portion (23) connected to the liquid inlet (11) or the liquid outlet (12); a first channel is provided in the first connecting portion (23), and the first channel is communicated with the first interface (21); A second connection portion (24) is connected to the first connection portion (23) and is arranged to protrude from the liquid cooling plate (1), and a plurality of second interfaces (22) are arranged around the second connection portion (24); a second channel is arranged in the second connection portion (24), and the second channel is communicated with the first channel and the plurality of second interfaces (22).

3. The liquid cooling radiator according to claim 2, characterized in that: The second connecting portion (24) is a multi-prism structure, and each side surface of the second connecting portion (24) is provided with at least one second interface (22).

4. The liquid cooling radiator according to any one of claims 1 to 3, characterized in that: The liquid cooling plate (1) is provided with a containing cavity, the liquid inlet (11) and the liquid outlet (12) are both connected to the containing cavity, and the liquid inlet (11) and the liquid outlet (12) are arranged relatively to each other along a first direction; a plurality of flow channels (14) are provided in the containing cavity, and the plurality of flow channels (14) are arranged in sequence along a second direction; the flow channels (14) extend along the first direction; and the first direction is perpendicular to the second direction.

5. The liquid cooling radiator according to claim 4, characterized in that: The flow channel (14) is S-shaped; And / or, the flow channels (14) are symmetrically distributed along the central axis of the second direction.

6. The liquid cooling radiator according to claim 4, characterized in that: The accommodating chamber comprises a first accommodating space (131) and a second accommodating space (132) which are interconnected. The first accommodating space (131) and the second accommodating space (132) are arranged in sequence along the first direction. In a direction close to the first accommodating space (131), the flow surface of the second accommodating space (132) gradually increases. The liquid inlet (11) is in communication with the second accommodating space (132) and is arranged on a side of the second accommodating space (132) away from the first accommodating space (131). In a direction close to the liquid inlet (11), the lengths of the plurality of flow channels (14) arranged in sequence along the second direction gradually increase. And / or, the accommodating chamber comprises a first accommodating space (131) and a third accommodating space (133) which are interconnected; the first accommodating space (131) and the third accommodating space (133) are arranged in sequence along the first direction; in a direction approaching the first accommodating space (131), the flow surface of the third accommodating space (133) gradually increases; the liquid outlet (12) is connected to the third accommodating space (133) and is arranged on a side of the third accommodating space (133) away from the first accommodating space (131); in a direction approaching the liquid outlet (12), the lengths of the plurality of flow channels (14) arranged in sequence along the second direction gradually increase.

7. The liquid cooling radiator according to claim 5 or 6, characterized in that: The liquid cooling plate (1) comprises: The 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 to the heat-conducting bottom plate (15), and the liquid inlet (11) and the liquid outlet (12) are both arranged on the heat-conducting cover plate (16); The heat-conducting cover plate (16) comprises a cover plate body (161) and a protruding portion (162); the joint (2) is arranged on a side of the cover plate body (161) facing away from the heat-conducting bottom plate (15); The protruding portion (162) is protrudingly arranged on a 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 portion (162) abuts against the inner wall corresponding to the receiving groove, and the protruding portion (162) and the receiving groove enclose a receiving cavity; A sealing gasket (17) is arranged between the cover plate body (161) and the heat-conducting bottom plate (15), and is detachably connected to the cover plate body (161) and the heat-conducting bottom plate (15); The sealing gasket (17) is provided with a through opening (171), and the protrusion (162) passes through the through opening (171) and abuts against the top surface of the flow channel (14); and each side wall of the protrusion (162) abuts against the inner wall corresponding to the through opening (171).

8. A liquid cooling device, characterized in that: include: The liquid cooling radiator according to any one of claims 1 to 7; The cooling pipeline (3) comprises a liquid inlet pipe (31) and a liquid outlet pipe (32); the liquid inlet pipe (31) is connected to the liquid inlet (11) of the liquid cooling radiator through the second interface (22); and the liquid outlet pipe (32) is connected to the liquid outlet (12) of the liquid cooling radiator through the second interface (22).

9. The liquid cooling device according to claim 8, characterized in that: The liquid-cooled radiator is provided in plurality, and the plurality of liquid-cooled radiators are connected in series in sequence via a connecting pipe (5); in the flow direction of the coolant, the liquid inlet (11) of the liquid-cooled radiator at the head end is connected to the liquid inlet pipe (31), and the liquid outlet (12) of the liquid-cooled radiator at the tail end is connected to the liquid outlet pipe (32).

10. The liquid cooling device according to claim 8, characterized in that: At least four liquid-cooled radiators are provided, and the plurality of liquid-cooled radiators are arranged in two rows along the second direction; the first row includes two liquid-cooled radiators, and the second row includes at least two liquid-cooled radiators; the at least two liquid-cooled radiators in the second row are connected in series in sequence via a connecting pipe (5); in the flow direction of the coolant, the two liquid-cooled radiators in the second row located at the head end and the tail end are arranged in one-to-one correspondence with the two liquid-cooled radiators in the first row, and the liquid-cooled radiators in the first row are connected in parallel with the corresponding liquid-cooled radiators in the second row via two connecting pipes (5); in the flow direction of the coolant, the liquid inlet (11) of the liquid-cooled radiator in the first row located at the head end is connected to the liquid inlet pipe (31), and the liquid outlet (12) of the liquid-cooled radiator in the first row located at the tail end is connected to the liquid outlet pipe (32).

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