A liquid cooling radiator for a server

Abstract

The application relates to the technical field of liquid cooling heat dissipation, and discloses a server liquid cooling radiator, which comprises a GPU cooling plate and a CPU cooling plate fixedly installed in a server shell and a fan installed on one side of the server shell, a liquid inlet main pipe and a liquid outlet main pipe are fixedly installed on one side of the server shell, a driving piece for circulating cooling liquid in the liquid inlet main pipe and the liquid outlet main pipe is installed in the server shell, a plurality of heat dissipation plates are arranged on one side of the server shell, the heat dissipation plates are located on the outer side of the fan, the driving piece comprises a cooling liquid storage tank fixedly installed on the inner wall of the server shell, a circulating pump mounting box is fixedly installed on one side of the cooling liquid storage tank, an output pipe is fixedly connected between the circulating pump and the liquid inlet main pipe, the circulating pump is used for circulating the cooling liquid to realize heat dissipation, and a sealing piece is arranged between a clamping joint and a corresponding fixed joint, so that the residual cooling liquid in the connecting pipe can be bidirectionally cut off in the moment when the joint is separated, and residual liquid can be prevented from leaking out.

Description

Technical Field

[0001] This invention relates to the field of liquid cooling technology, specifically to a server liquid cooling radiator. Background Technology

[0002] As the computing speed of electronic components continues to increase, the power consumption of server CPUs and GPUs continues to rise. Traditional air cooling can no longer meet the heat dissipation requirements of high heat density server racks. Liquid cooling technology, with its coolant having a much higher specific heat capacity and thermal conductivity than air, has become the mainstream heat dissipation solution for high-power servers. In a typical server liquid cooling system, the coolant is driven by a pump and enters the cold plate attached to the surface of the heat-generating chip through the inlet pipe. After absorbing the heat from the chip, the temperature rises. The heated coolant then flows out of the cold plate through the return pipe and enters the heat sink to dissipate the heat into the environment. The cooled coolant then re-enters the circulation, forming a closed liquid cooling loop.

[0003] To enable flexible deployment and maintenance of server nodes, the external connection piping of a liquid cooling system typically includes components such as a main inlet pipe, a main return pipe, branch pipes connecting each cold plate, and connectors for switching the fluid on and off. During the entire lifecycle management of the server, due to hardware upgrades, pipe aging and replacement, or fault repairs, operators need to plug and unplug connectors to disconnect the branch pipes.

[0004] However, existing connectors and pipes still have the following technical limitations in actual maintenance operations: when the connector is disconnected for maintenance, replacement or upgrade of server branch pipes, some coolant will remain in the pipes. This residual liquid will flow out along the disconnected pipe end face under the action of gravity, directly contaminating the server motherboard, memory modules and surrounding electronic components. Most coolants are deionized water or ethylene glycol aqueous solutions, and their leakage may cause electrical short circuits. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a server liquid cooling radiator designed to solve the problem of residual liquid leakage from pipes during disassembly.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a server liquid cooling radiator, comprising a GPU cold plate and a CPU cold plate fixedly installed inside a server housing, and a fan installed on one side of the server housing. A liquid inlet manifold and a liquid outlet manifold are fixedly installed on one side of the server housing. A drive unit for circulating the coolant in the liquid inlet manifold and the liquid outlet manifold is installed inside the server housing. Multiple connection ports are provided on one side of both the liquid inlet manifold and the liquid outlet manifold. Liquid cooling channels are provided inside both the GPU cold plate and the CPU cold plate. Connection holes communicating with corresponding liquid cooling channels are provided on the outer sides of both the GPU cold plate and the CPU cold plate. Fixed connectors are fixedly connected to the connection ports and connection holes. Connecting pipes are provided between the fixed connectors on the GPU cold plate and the CPU cold plate and the fixed connectors on the liquid inlet manifold and the liquid outlet manifold. Snap-fit ​​connectors are installed at both ends of the connecting pipes. Sealing elements and snap-fit ​​elements are provided between the multiple snap-fit ​​connectors and their corresponding fixed connectors. A rotating element for controlling the rotation of the sealing element is installed on one side of each snap-fit ​​connector. The snap-fit ​​connectors are fastened to their corresponding fixed connectors by nuts.

[0007] Preferably, the system also includes multiple heat sinks disposed on one side of the server housing, the heat sinks being located outside the fan.

[0008] Preferably, the drive unit includes a coolant storage tank fixedly installed on the inner wall of the server housing, a circulation pump mounting box fixedly installed on one side of the coolant storage tank, and an output pipe fixedly connected between the circulation pump and the inlet manifold.

[0009] Preferably, the heat sink has a cavity inside, and a fixed housing is fixedly installed at both ends of the heat sink. The two ends of the heat sink are respectively located in the corresponding fixed housing. A conduit is fixedly connected between the uppermost heat sink and the main outlet pipe. An arc-shaped housing is fixedly connected to the ends of two adjacent heat sinks. The arc-shaped housing combines multiple heat sinks into a spiral shape. An outlet pipe is fixedly connected between one end of the lowermost heat sink and the coolant storage tank.

[0010] Preferably, the outer end of the fixed joint is a fixed ring, the snap-fit ​​joint is a mounting ring fixedly connected to the end of the connecting pipe, and the connecting pipe is divided into an outer pipe and an inner pipe, with each end of the outer pipe and the inner pipe fixedly connected to the corresponding mounting ring.

[0011] Preferably, the sealing element includes a fixing frame that is fixedly installed in a fixing ring and a mounting ring respectively. The ends of the fixing ring and the mounting ring are provided with sealing blocks. A telescopic component is provided between the fixing frame and the corresponding sealing block. A sealing gasket is fixedly installed on the opposite side of the fixing ring and the mounting ring at the corresponding positions.

[0012] Preferably, the telescopic component includes a fixed cylinder disposed on one side of the fixed frame, a rectangular rod slidably disposed inside the fixed cylinder, a spring disposed between the rectangular rod and the fixed cylinder, and the rectangular rod being fixedly connected to a corresponding sealing block.

[0013] Preferably, the fixed cylinder and the fixed frame located within the mounting ring are rotatably connected, and the fixed cylinder and the fixed frame located within the fixed ring are fixedly connected. The rotating component includes a rotating handle rotatably connected to the mounting ring. A disc is fixedly installed at one end of the rotating handle within the mounting ring. Multiple push columns are fixedly installed on the periphery of one end of the disc. Multiple fixed columns matching the push columns are fixedly installed on the periphery of the fixed cylinder located within the mounting ring.

[0014] Preferably, the middle part of the sealing block is a cylinder, used to seal the corresponding mounting ring and fixing ring, and the two sealing blocks at the corresponding positions are semi-conical on opposite sides.

[0015] Preferably, the snap-fit ​​component includes a plurality of elastic clips fixedly installed on the periphery of one end of the mounting ring and a plurality of protrusions fixedly installed on the periphery of one end of the fixing ring.

[0016] Compared with the prior art, the present invention has the following beneficial effects: To reliably seal residual coolant during the disassembly and maintenance of server liquid cooling systems and prevent residual coolant from overflowing from joints and contaminating electronic components, this invention incorporates a seal between the snap-fit ​​connector and its corresponding fixed connector. When the snap-fit ​​connector and fixed connector are in a mating connection, the seal is pushed open, and the telescopic component is compressed, fully opening the liquid cooling channel and allowing the coolant to circulate normally within the pipes. When the snap-fit ​​connector and fixed connector need to be disassembled, the telescopic component, under its own elastic restoring force, pushes the seal back to its original position, sealing the end ports of the snap-fit ​​connector and fixed connector. This achieves bidirectional cutoff of residual coolant in the connecting pipe at the moment of connector separation, effectively preventing residual coolant from leaking from the connector end and also preventing residual coolant from seeping out of the microchannels inside the cold plate and the main pipe after disconnection.

[0017] To achieve pre-sealing switching between the snap-fit ​​connector and the fixed connector before disassembly, this invention sets the middle part of the sealing block as a cylindrical structure to form a sealing fit with the inner walls of the corresponding mounting ring and fixed ring. Simultaneously, the opposite side of the two corresponding sealing blocks is set as a semi-conical structure. When the snap-fit ​​connector and the fixed connector are in a connected state, the conical surfaces of the two semi-cones abut against each other, the telescopic component is compressed, and the liquid cooling channel remains open. When disassembly is required, one of the telescopic components is first controlled by a rotating component to rotate the corresponding sealing block around its axis, causing the two originally abutting conical surfaces of the semi-cones to misalign. At this time, the telescopic component, under its own elastic restoring force, pushes the corresponding sealing block to perform the sealing operation. The sealing is restored before the connector is separated, resulting in better prevention of residual liquid leakage.

[0018] This invention connects the ends of two adjacent heat sinks with an arc-shaped shell. Multiple heat sinks are connected in series in a spiral shape through the arc-shaped shell. After the coolant flows in from the inlet end, it flows through each heat sink in sequence along the spiral path. Compared with the traditional straight through or single-pass reversing flow channel layout, the spiral series structure allows the coolant to flow through more heat sinks and for a longer distance in a limited space, effectively extending the overall residence time of the coolant in the heat sink and making the heat exchange of the coolant more complete. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram showing the positional relationship between the CPU cold plate, GPU cold plate, and connecting pipe of the present invention; Figure 3 This is a three-dimensional cross-sectional structural diagram of the fixed housing of the present invention; Figure 4 This is a three-dimensional cross-sectional structural diagram of the heat sink of the present invention; Figure 5 This is a three-dimensional cross-sectional structural diagram of the snap-fit ​​connector and the fixed connector of the present invention; Figure 6 for Figure 5 A magnified structural diagram of A in the middle; Figure 7 for Figure 6 A magnified structural diagram of B in the diagram; Figure 8 This is a three-dimensional structural schematic diagram of the sealing element of the present invention; Figure 9 This is a three-dimensional structural diagram of the rotating component of the present invention.

[0020] In the diagram: 1. Server housing; 2. CPU cold plate; 3. GPU cold plate; 4. Fan; 5. Heat sink; 6. Inlet manifold; 7. Outlet manifold; 8. Coolant storage tank; 9. Circulation pump mounting box; 10. Output pipe; 11. Cavity; 12. Fixed housing; 13. Fixing column; 14. Conduit; 15. Arc-shaped housing; 16. Outlet pipe; 17. Outer pipe; 18. Inner pipe; 19. Sealing gasket; 20. Rotary handle; 21. Fixing bracket; 22. Fixing cylinder; 23. Rectangular rod; 24. Spring; 25. Sealing block; 26. Elastic clip; 27. Protrusion; 28. Nut; 29. ​​Snap-fit ​​connector; 30. Fixed connector; 31. Push column; 32. Disc. Detailed Implementation

[0021] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0022] Please see Figures 1-9 A server liquid cooling radiator includes a GPU cold plate 3 and a CPU cold plate 2 fixedly installed inside a server housing 1, and a fan 4 installed on one side of the server housing 1. An inlet manifold 6 and an outlet manifold 7 are fixedly installed on one side of the server housing 1. A drive unit for circulating the coolant in the inlet manifold 6 and the outlet manifold 7 is installed inside the server housing 1. The drive unit includes a coolant storage tank 8 fixedly installed on the inner wall of the server housing 1. A circulation pump mounting box 9 is fixedly installed on one side of the coolant storage tank 8. An outlet pipe is fixedly connected between the circulation pump in the circulation pump mounting box 9 and the inlet manifold 6. 10, also includes multiple heat sinks 5 disposed on one side of the server housing 1. The heat sinks 5 are located outside the fan 4. The existing liquid cooling working principle uses a circulation pump to transport the coolant in the coolant storage tank 8 through the output pipe 10 to the inlet main pipe 6, and then distributes it to each GPU cold plate 3 and CPU cold plate 2 through the branch pipe, and then returns to the outlet main pipe 7. The heat sink 5 has a cavity 11, which transports the coolant in the outlet main pipe 7 to the cavity 11 of the heat sink 5, and finally returns to the coolant storage tank 8. When the heated coolant is in the heat sink 5, the fan 4 is started to dissipate heat. To achieve a longer cooling time for the coolant within the heat sink 5, thereby increasing the temperature drop per unit volume of coolant and the overall heat exchange efficiency of the heat sink 5, fixed housings 12 are fixedly installed at both ends of the heat sink 5. The two ends of the heat sink 5 are respectively located within the corresponding fixed housings 12. A conduit 14 is fixedly connected between the uppermost heat sink 5 and the main outlet pipe 7. An arc-shaped housing 15 is fixedly connected to the ends of two adjacent heat sinks 5. The arc-shaped housing 15 combines multiple heat sinks 5 into a spiral shape. After the coolant flows in from the conduit 14, it flows through each heat sink 5 sequentially along the spiral path. Compared with the traditional straight through or single-pass reversing flow channel layout, the spiral series structure allows the coolant to flow through more heat sinks 5 in a limited space and for a longer distance, effectively extending the overall residence time of the coolant within the heat sink 5 and making the heat exchange of the coolant more complete. An outlet pipe 16 is fixedly connected between one end of the lowermost heat sink 5 and the coolant storage tank 8. Multiple connection ports are provided on one side of the liquid inlet manifold 6 and the liquid outlet manifold 7. Liquid cooling channels are provided inside the GPU cold plate 3 and the CPU cold plate 2. Connection holes communicating with the corresponding liquid cooling channels are provided on the outer sides of the GPU cold plate 3 and the CPU cold plate 2. Fixed connectors 30 are fixedly connected to the connection ports and connection holes. The outer end of the fixed connector 30 is a fixed ring (the structure of each fixed connector 30 can be different, as long as its outermost end is circular). A connecting pipe (the connecting pipe is the branch pipe mentioned above) is provided between the fixed connectors 30 on the GPU cold plate 3 and the CPU cold plate 2 and the fixed connectors 30 on the liquid inlet manifold 6 and the liquid outlet manifold 7. Both ends of the connecting pipe are equipped with snap-fit ​​connectors 29, which are mounting rings fixedly connected to the ends of the connecting pipe. The connecting pipe is divided into an outer pipe 17 and an inner pipe 18 (double-layer pipe protection is better). The two ends of the outer pipe 17 and the inner pipe 18 are fixedly connected to the corresponding mounting rings. Multiple snap-fit ​​connectors 29 are provided with connections between the corresponding fixed connectors 30 and the connection ports 29. The system includes a sealing element and a snap-fit ​​element. When the snap-fit ​​connector 29 and the fixed connector 30 are in a mating state, the sealing element is pushed open. The sealing element includes a fixing bracket 21 that is fixedly installed in the fixing ring and the mounting ring respectively. The ends of the fixing ring and the mounting ring are provided with sealing blocks 25. A telescopic element is provided between the fixing bracket 21 and the corresponding sealing block 25. The fixed ring and the mounting ring are fixedly installed with sealing gaskets 19 on their opposite sides. When the two corresponding sealing blocks 25 abut against each other, the telescopic element is compressed, and the liquid cooling channel is fully open. The coolant can circulate normally in each pipeline. When the snap-fit ​​connector 29 and the fixed connector 30 need to be separated, the telescopic element pushes the corresponding sealing block 25 to reset under its own elasticity, sealing the ends of the snap-fit ​​connector 29 and the fixed connector 30. This achieves reliable sealing of residual coolant during the disassembly of the server liquid cooling system, avoiding residual liquid overflow and contamination of electronic components (before the disassembly work, the circulation pump is shut down and the pipeline is depressurized according to the existing technical process). A rotating component for controlling the rotation of the seal is installed on one side of the snap-fit ​​connector 29. The telescopic component includes a fixed cylinder 22 located on one side of the fixed frame 21. The fixed cylinder 22 located inside the mounting ring is rotatably connected to the fixed frame 21, and the fixed cylinder 22 located inside the fixed ring is fixedly connected to the fixed frame 21. The rotating component includes a handle 20 rotatably connected to the mounting ring (the handle 20 is rotatably connected to the mounting ring via an oil seal bearing). A disc 32 is fixedly installed at one end of the handle 20 inside the mounting ring. Multiple push columns 31 are fixedly installed on the periphery of one end of the disc 32. Multiple fixed columns 13 matching the push columns 31 are fixedly installed on the periphery of the fixed cylinder 22 inside the mounting ring. The middle part of the sealing block 25 is a cylinder (used to form a sealing fit with the inner wall of the corresponding mounting ring and fixed ring) for sealing the corresponding mounting ring and fixed ring. The two sealing blocks 25 at the corresponding positions have a semi-cone on opposite sides (when the snap-fit ​​connector 29 and the fixed connector 30 are in a mating communication state, the conical surfaces of the two semi-cones abut against each other). At this time, the semi-cones are located at the corresponding mounting ring and fixed ring. The port of the ring keeps the liquid cooling channel open. During subsequent disassembly, the rotating handle 20 drives the disc 32 to rotate. The disc 32, through the cooperation of multiple push columns 31 and fixed columns 13, controls the rotation of the corresponding fixed cylinder 22. The fixed cylinder 22 drives the entire telescopic component to rotate, and the telescopic component drives the corresponding sealing block 25 to rotate, causing the two originally abutting semi-conical surfaces to misalign. At this time, under the action of its own elastic restoring force, the telescopic component pushes the corresponding sealing block 25 to perform sealing work, restoring the sealing block before the joint is separated. The snap-fit ​​connector 29 and the corresponding fixed connector 30 are fastened with a nut 28 (both snap-fit ​​connector 29 and fixed connector 30 are provided with threads on the outside to connect with the nut 28). The nut 28 is threadedly connected to the fixed connector 30. After the snap-fit ​​connector 29 is connected to the corresponding fixed connector 30, the nut 28 is rotated so that one end is threadedly connected to the corresponding fixed connector 30 to reinforce the two. After reinforcement, the nut 28 abuts against the rotating handle 20 and can limit the rotation of the rotating handle 20.

[0023] As a further technical solution of the present invention, the telescopic component also includes a rectangular rod 23 that is slidably connected to the fixed cylinder 22. A spring 24 is provided between the rectangular rod 23 and the fixed cylinder 22. The rectangular rod 23 is fixedly connected to the corresponding sealing block 25. When the two corresponding sealing blocks 25 come into contact, the spring 24 is squeezed and the rectangular rod 23 abuts against the inner wall of the corresponding fixed cylinder 22.

[0024] As a further technical solution of the present invention, the snap-fit ​​component includes multiple elastic clips 26 fixedly installed on one side of the mounting ring and multiple protrusions 27 fixedly installed on one side of the fixing ring. When the snap-fit ​​connector 29 is connected to the corresponding fixing connector 30, the elastic clips 26 and protrusions 27 are pre-connected first, and then reinforced by nuts 28. When disassembling, the nuts 28 are released first, and then the rotating handle 20 is rotated to perform a pre-seal, and then the connection between the elastic clips 26 and protrusions 27 is released.

[0025] During work: I. Initial Installation Phase Connect the snap-fit ​​connectors 29 at both ends of the connecting pipe (a double-layer pipe consisting of an outer pipe 17 and an inner pipe 18) to the corresponding fixed connectors 30 respectively (align the elastic clips 26 at the end of the snap-fit ​​connector 29 with the protrusions 27 at the end of the fixed connector 30, push the snap-fit ​​connector 29 so that its elastic clips 26 engage with the protrusions 27 to achieve pre-connection, and the sealing gasket 19 is squeezed). During the docking process, the sealing block 25 inside the mounting ring abuts against the sealing block 25 inside the fixing ring, pushing the corresponding rectangular rod 23 to compress the spring 24 and abut against the fixing cylinder 22, so that the cylindrical part of the sealing block 25 is separated from the contact with the inner wall of the mounting ring and the fixing ring, and the liquid cooling channel is fully connected. Then, the nut 28 is rotated to make the nut 28 engage with the thread on the outside of the fixing joint 30 to tighten the joint connection, until the upper end of the nut 28 abuts against the handle 20. II. Normal heat dissipation phase The circulation pump is started, and the coolant is pumped from the coolant storage tank 8 into the inlet manifold 6 through the outlet pipe 10. The coolant in the inlet manifold 6 is distributed to the liquid cooling channels of the GPU cold plate 3 and the CPU cold plate 2 through the branch connecting pipes. When flowing through the microchannels of the cold plate, it absorbs the heat conducted by the chip through forced convection heat exchange with the wall of the cold plate, and its own temperature rises. The heated coolant flows out from each cold plate and flows into the outlet manifold 7. The high-temperature coolant in the outlet manifold 7 enters the heat sink 5 through the conduit 14 and flows through the cavity 11 of each heat sink 5 in sequence along the spiral path. During the flow, the heat is transferred to the external environment through the wall of the heat sink 5. At the same time, the fan 4 is started and works. The fan 4 forces the air to flow through the surface of the heat sink 5 to accelerate the heat dissipation. The cooled coolant flows back to the coolant storage tank 8 through the outlet pipe 16 to complete one cycle. Then it is pumped out again by the circulation pump. The cycle is repeated to achieve continuous liquid cooling of the server CPU and GPU. III. Maintenance and Disassembly Stage When the branch connection pipe needs to be disassembled for maintenance, replacement or upgrade of the liquid cooling system, the operator first turns the nut 28 to disengage the nut 28 from the threaded connection with the fixed joint 30, thereby releasing the fastening between the snap-fit ​​joint 29 and the fixed joint 30 (and at the same time disengaging the handle 20, releasing the limit on the handle 20). Then, the handle 20 is rotated, which drives the disc 32 and the multiple push columns 31 on the disc 32 to rotate. The push columns 31 push the corresponding fixed columns 13, which in turn drive the fixed cylinder 22 inside the mounting ring to rotate. The fixed cylinder 22 drives the corresponding sealing block 25 to rotate through the rectangular rod 23, causing the two abutting semi-conical surfaces to misalign. After misalignment, the spring 24 pushes the rectangular rod 23 under its own elasticity. The rectangular rod 23 pushes the sealing block 25 to move, so that the cylindrical part of the sealing block 25 is re-embedded into the inner wall of the mounting ring and the fixed ring, thus restoring the seal in advance before the joint is physically separated. Then press the elastic clip 26 to expand it and disengage it from the engagement of the protrusion 27, and pull the snap-fit ​​connector 29 out of the fixed connector 30. At this time, since the sealing block 25 has sealed the ports of the mounting ring and the fixed ring in the above steps, no coolant leakage will occur when the connector is separated. Even if there is residual coolant in the pipeline, it will be blocked by the sealing block 25.

[0026] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the invention and should not be construed as limiting the scope of protection of the invention in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of the invention without inventive effort, and these embodiments will all fall within the scope of protection of the claims of the present invention.

Claims

1. A server liquid cooling radiator, comprising a GPU cold plate (3) and a CPU cold plate (2) fixedly installed inside a server housing (1) and a fan (4) installed on one side of the server housing (1), characterized in that, A liquid inlet manifold (6) and a liquid outlet manifold (7) are fixedly installed on one side of the server housing (1). A drive unit for circulating the coolant in the liquid inlet manifold (6) and the liquid outlet manifold (7) is installed inside the server housing (1). Multiple connection ports are opened on one side of the liquid inlet manifold (6) and the liquid outlet manifold (7). Liquid cooling channels are opened inside the GPU cold plate (3) and the CPU cold plate (2). Connection holes communicating with the corresponding liquid cooling channels are opened on the outer side of the GPU cold plate (3) and the CPU cold plate (2). Fixed connections are fixedly connected to the connection ports and the connection holes. Connector (30): A connecting pipe is provided between the fixed connector (30) on the GPU cold plate (3) and the CPU cold plate (2) and the fixed connector (30) on the liquid inlet manifold (6) and the liquid outlet manifold (7). Both ends of the connecting pipe are equipped with snap-fit ​​connectors (29). A sealing element and a snap-fit ​​element are provided between the multiple snap-fit ​​connectors (29) and the corresponding fixed connectors (30). A rotating element for controlling the rotation of the sealing element is installed on one side of the snap-fit ​​connector (29). The snap-fit ​​connector (29) and the corresponding fixed connector (30) are fastened by nuts (28).

2. The server liquid cooling radiator according to claim 1, characterized in that, It also includes multiple heat sinks (5) disposed on one side of the server housing (1), the heat sinks (5) being located outside the fan (4).

3. A server liquid cooling radiator according to claim 2, characterized in that, The drive unit includes a coolant storage tank (8) fixedly installed on the inner wall of the server housing (1), a circulation pump mounting box (9) fixedly installed on one side of the coolant storage tank (8), and an output pipe (10) fixedly connected between the circulation pump and the inlet manifold (6).

4. A server liquid cooling radiator according to claim 3, characterized in that, The heat sink (5) has a cavity (11) inside. Both ends of the heat sink (5) are fixedly installed with a fixed housing (12). The two ends of the heat sink (5) are respectively located in the corresponding fixed housing (12). The heat sink (5) at the top is fixedly connected to the liquid outlet main pipe (7) by a conduit (14). The ends of two adjacent heat sinks (5) are fixedly connected to an arc-shaped housing (15). The arc-shaped housing (15) combines multiple heat sinks (5) into a spiral shape. One end of the heat sink (5) at the bottom is fixedly connected to the coolant storage tank (8) by a liquid outlet pipe (16).

5. A server liquid cooling radiator according to claim 4, characterized in that, The outer end of the fixed connector (30) is a fixed ring, and the snap-fit ​​connector (29) is an installation ring that is fixedly connected to the end of the connecting pipe. The connecting pipe is divided into an outer pipe (17) and an inner pipe (18). The two ends of the outer pipe (17) and the inner pipe (18) are respectively fixedly connected to the corresponding installation rings.

6. A server liquid cooling radiator according to claim 5, characterized in that, The sealing element includes a fixing frame (21) that is fixedly installed in a fixing ring and a mounting ring respectively. The ends of the fixing ring and the mounting ring are provided with sealing blocks (25). A telescopic component is provided between the fixing frame (21) and the corresponding sealing block (25). The fixing ring and the mounting ring at the corresponding positions are fixedly installed with sealing gaskets (19) on their opposite sides.

7. A server liquid cooling radiator according to claim 6, characterized in that, The telescopic component includes a fixed cylinder (22) disposed on one side of the fixed frame (21), a rectangular rod (23) is slidably disposed inside the fixed cylinder (22), a spring (24) is disposed between the rectangular rod (23) and the fixed cylinder (22), and the rectangular rod (23) is fixedly connected to the corresponding sealing block (25).

8. A server liquid cooling radiator according to claim 7, characterized in that, The fixed cylinder (22) located inside the mounting ring is rotatably connected to the fixed frame (21), and the fixed cylinder (22) located inside the fixed ring is fixedly connected to the fixed frame (21). The rotating component includes a rotating handle (20) rotatably connected to the mounting ring. A disc (32) is fixedly installed at one end of the rotating handle (20) inside the mounting ring. Multiple push columns (31) are fixedly installed on the periphery of one end of the disc (32). Multiple fixed columns (13) matching the push columns (31) are fixedly installed on the periphery of the fixed cylinder (22) located inside the mounting ring.

9. A server liquid cooling radiator according to claim 8, characterized in that, The middle part of the sealing block (25) is a cylinder, which is used to seal the corresponding mounting ring and fixing ring. The two sealing blocks (25) at the corresponding positions are semi-conical on opposite sides.

10. A server liquid cooling radiator according to claim 9, characterized in that, The snap-fit ​​component includes multiple elastic clips (26) fixedly installed on one side of the mounting ring and multiple protrusions (27) fixedly installed on one side of the fixing ring.

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