A cabinet liquid cooling heat dissipation structure of a server

Abstract

The utility model relates to server liquid cooling heat dissipation technical field especially, a kind of cabinet liquid cooling heat dissipation structure of server is provided.The utility model discloses a cabinet body, cabinet door, control module, liquid cooling tank and liquid cooling plate etc., cabinet body front side is hinged with cabinet door, control module is installed on the upper portion of cabinet door, four liquid cooling tanks are installed in vertical arrangement in cabinet body, liquid cooling plate is installed in up-and-down distribution in liquid cooling tank.The utility model is combined with the mixed heat dissipation framework of immersion heat dissipation and liquid cooling plate intensified cooling, cooling liquid is injected into liquid cooling tank by branch pipe one, the overall immersion heat dissipation to server is realized, cooling liquid is accurately delivered to liquid cooling plate by branch pipe two, directional intensified cooling is carried out to CPU, GPU and other high heat chip, reach in same system, both guarantee the high strength heat dissipation demand of key component, also consider the effect that server overall heat is evenly dispersed, effectively avoid the problem of uneven cooling or insufficient heat dissipation capacity under single cooling mode.

Description

Technical Field

[0001] This utility model relates to the field of server liquid cooling technology, and in particular to a server rack liquid cooling structure. Background Technology

[0002] With the rapid development of cloud computing, artificial intelligence, and big data computing, the processing power and integration of servers in modern data centers are constantly increasing, leading to a sharp rise in the power density and heat generation of individual server racks. Traditional air-cooling methods have gradually revealed bottlenecks such as insufficient heat dissipation efficiency, excessive energy consumption, and loud noise when dealing with high heat density server racks. To overcome this limitation, liquid cooling technology, with its thermal conductivity and specific heat capacity far exceeding that of air, has become a key solution for next-generation server heat dissipation.

[0003] However, in existing rack-mount liquid cooling technology practices, some systems only use cold plates for localized cooling of a few core chips, or only employ immersion cooling for overall heat dissipation. This often fails to achieve the optimal balance between heat dissipation efficiency, manufacturing cost, and universality. Localized cold plate solutions neglect the heat dissipation needs of other components, leading to hot zones within the rack; while simple immersion cooling is sometimes insufficient for chips with extremely high heat flux densities. Furthermore, existing systems may have complex coolant circulation designs and insufficient consideration for ease of maintenance, all of which potentially affect the reliability, maintainability, and long-term operational stability of the entire cooling system.

[0004] Therefore, there is an urgent need for a server rack liquid cooling structure. Utility Model Content

[0005] In order to overcome the shortcomings of existing liquid cooling technology, which has a single cooling mode that cannot simultaneously achieve both local high-intensity heat dissipation and overall heat dissipation balance of the server, this utility model provides a server rack liquid cooling structure.

[0006] Technical Solution: A server rack liquid cooling structure includes a rack, a cabinet door, a control module, liquid cooling boxes, liquid cooling plates, a liquid storage tank, an inlet pipe, a liquid pump, a liquid delivery pipe, branch pipe 1, branch pipe 2, a heat exchanger, a suction pipe, branch pipe 3, branch pipe 4, a suction pump, and a circulation pipe. The cabinet door is hinged to the front of the rack, and the control module is fixedly installed on the upper part of the door. Four liquid cooling boxes are vertically arranged and fixedly installed inside the rack. Liquid cooling plates are fixedly installed vertically inside each liquid cooling box. A liquid storage tank is fixedly installed on the upper left and lower right sides of the rack. An inlet pipe is fixedly connected to the top center of each liquid storage tank. A liquid pump is fixedly installed at the bottom of each liquid storage tank, and the outlet of each liquid pump is fixedly connected to a liquid delivery pipe. Each liquid inlet pipe is fixedly connected to a branch pipe 2 at the liquid inlet corresponding to the liquid cooling plate, and two branch pipes 1 are also fixedly connected to the liquid inlet pipe. Each branch pipe 1 extends into the corresponding liquid cooling box. A heat exchanger is fixedly installed on the rear side of the cabinet. Each liquid outlet on the upper left and right sides of the heat exchanger is fixedly connected to a liquid extraction pipe, and each liquid outlet pipe is fixedly connected to a branch pipe 3 at the liquid outlet corresponding to the liquid cooling plate. Two branch pipes 4 are also fixedly connected to the liquid extraction pipe, and each branch pipe 4 passes through the corresponding liquid cooling box. Each liquid storage tank is fixedly installed with a liquid extraction pump. A circulation pipe is fixedly connected between the liquid extraction end of the liquid extraction pump and the liquid outlet on the corresponding side of the lower part of the heat exchanger. The control module is electrically connected to the liquid inlet pump, the heat exchanger, and the liquid extraction pump.

[0007] In addition, it is particularly preferred that the system also includes servers, with servers installed between the liquid cooling plates in each liquid cooling box.

[0008] In addition, it is particularly preferable that a handle is provided on the front left side of the cabinet door.

[0009] In addition, it is particularly preferred that the liquid level sensor is also included. Three liquid level sensors are fixedly installed in a horizontal arrangement on the inner wall of the left side of the liquid cooling box, and the control module is electrically connected to the liquid level sensor.

[0010] In addition, it is particularly preferred that the cabinet also includes an outer shell, with the upper right side and lower left side of the cabinet being fixedly connected to the outer shell, and the infusion tube, branch tube one, branch tube two, suction tube, branch tube three and branch tube four all located inside the outer shell.

[0011] In addition, it is particularly preferred that the cabinet also includes cooling fans, with cooling fans embedded in the top and bottom of the cabinet, and the control module is electrically connected to the cooling fans.

[0012] The beneficial effects of this utility model are as follows: 1. This utility model adopts a hybrid heat dissipation architecture that combines immersion heat dissipation with liquid cooling plate enhanced cooling. By using branch pipe one to inject coolant into the liquid cooling box, the server can be immersed in heat dissipation. At the same time, branch pipe two accurately delivers coolant to the liquid cooling plate to perform targeted enhanced cooling of high-heat chips such as CPU and GPU. This achieves the effect of ensuring the high-intensity heat dissipation requirements of key components in the same system, while also ensuring the uniform distribution of heat in the server as a whole. This effectively avoids the problem of uneven cooling or insufficient heat dissipation capacity of a single cooling mode.

[0013] 2. This utility model monitors the liquid level in the tank in real time by installing a liquid level sensor on the inner wall of the liquid cooling tank and electrically connecting it to the control module. Once an abnormality is detected, an alarm can be triggered, achieving the effect of early warning of liquid leakage or abnormal loss. Combined with the pipeline layout concentrated in the outer shell and the maintenance window that can be opened and closed via the cabinet door handle, the safety and ease of operation and maintenance of the system are further improved, effectively ensuring the long-term reliable operation of the equipment. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the cabinet, infusion pipe, and liquid cooling box components of this utility model.

[0016] Figure 3 This is a partial sectional view of the infusion pump, infusion tube, and branch tube components of this utility model.

[0017] Figure 4 This is a partial cross-sectional view of the components of this utility model, including the liquid cooling plate, server, and liquid level sensor.

[0018] Figure 5 This is a three-dimensional structural diagram of the components of this utility model, including the liquid extraction tube, branch tube three, and branch tube four.

[0019] The labels in the diagram are as follows: 1: Cabinet, 11: Cabinet door, 12: Control module, 13: Liquid cooling box, 14: Liquid cooling plate, 15: Server, 16: Liquid level sensor, 2: Storage tank, 21: Inlet pipe, 20: Outer shell, 22: Infusion pump, 23: Infusion pipe, 24: Branch pipe one, 25: Branch pipe two, 3: Heat exchanger, 31: Extraction pipe, 32: Branch pipe three, 33: Branch pipe four, 34: Extraction pump, 35: Circulation pipe, 4: Cooling fan. Detailed Implementation

[0020] Example: A server rack liquid cooling structure, such as... Figures 1-5As shown, the system includes a cabinet 1, a cabinet door 11, a control module 12, a liquid cooling box 13, a liquid cooling plate 14, a liquid storage tank 2, an inlet pipe 21, a delivery pump 22, a delivery pipe 23, a branch pipe 1 24, a branch pipe 25, a heat exchanger 3, a suction pipe 31, a branch pipe 32, a branch pipe 4 33, a suction pump 34, and a circulation pipe 35. The cabinet door 11 is hinged to the front of the cabinet 1. The control module 12 is fixedly installed on the upper part of the cabinet door 11. Four liquid cooling boxes 13 are fixedly installed vertically inside the cabinet 1. Liquid cooling plates 14 are fixedly installed vertically inside each liquid cooling box 13. Liquid storage tanks 2 are fixedly installed on the upper left and lower right sides of the cabinet 1. An inlet pipe 21 is fixedly connected to the top center of each liquid storage tank 2. A delivery pump 22 is fixedly installed at the bottom of each liquid storage tank 2. Delivery pipes 23 are fixedly connected to the outlet ends of each delivery pump 22. Liquid cooling plates 23 are connected to the corresponding liquid cooling plates on the delivery pipes 23. Each liquid inlet of plate 14 is fixedly connected to a branch pipe 25, and two branch pipes 24 are fixedly connected to the infusion pipe 23. The branch pipes 24 extend into the corresponding liquid cooling box 13. A heat exchanger 3 is fixedly installed on the rear side of the cabinet 1. The liquid extraction ports on the upper left and right sides of the heat exchanger 3 are fixedly connected to the extraction pipes 31. The corresponding liquid outlets of the liquid cooling plate 14 are fixedly connected to the extraction pipes 31. Two branch pipes 33 are fixedly connected to the extraction pipes 31. The branch pipes 33 extend into the corresponding liquid cooling box 13. A liquid pump 34 is fixedly installed on the top of the liquid storage tank 2. A circulation pipe 35 is fixedly connected between the extraction end of the liquid pump 34 and the corresponding liquid outlet on the lower side of the heat exchanger 3. The control module 12 is electrically connected to the infusion pump 22, the heat exchanger 3 and the extraction pump 34. A handle for easy operation is provided on the front left side of the cabinet door 11.

[0021] like Figure 4 As shown, it also includes a server 15, with a server 15 installed between the liquid cooling plates 14 in each liquid cooling box 13.

[0022] like Figure 4 As shown, it also includes a liquid level sensor 16. Three liquid level sensors 16 are fixedly installed in a horizontal arrangement on the inner wall of the left side of the liquid cooling box 13. The control module 12 is electrically connected to the liquid level sensor 16 to prevent heat dissipation failure caused by liquid leakage or evaporation.

[0023] like Figure 1 As shown, it also includes an outer shell 20. The upper right side and lower left side of the cabinet 1 are both fixedly connected to the outer shell 20 with dustproof effect. The infusion tube 23, branch tube 1 24, branch tube 25, suction tube 31, branch tube 32 and branch tube 4 33 are all located inside the outer shell 20.

[0024] like Figure 5 As shown, it also includes a cooling fan 4. The top and bottom of the cabinet 1 are both embedded with the cooling fan 4. The control module 12 is electrically connected to the cooling fan 4 to assist in heat dissipation.

[0025] When this device is needed, the operator first injects sufficient coolant into the two storage tanks 2 through the inlet pipe 21, connects the heat exchanger 3 to the external cooling water system, and then starts the system through the control module 12. The control module 12 then sends commands to the inlet pump 22, the outlet pump 34, the heat exchanger 3, and the cooling fan 4 to start the entire cooling cycle. After the system starts, the inlet pump 22 at the bottom of the storage tank 2 starts working, pumping the low-temperature coolant into the inlet pipe 23. The coolant is divided into two paths in the inlet pipe 23 for delivery. One path is directly injected into the liquid cooling box 13 through branch pipe 1 24 to dissipate heat from the server 15 by immersion. The other path is precisely delivered to the inlet of each liquid cooling plate 14 through branch pipe 2 25 to provide targeted and enhanced cooling for high-heat chips such as the CPU and GPU. After the heat absorption process is completed, the high-temperature coolant enters the recovery stage. The high-temperature liquid flowing from the outlet of the liquid cooling plate 14 flows into the extraction pipe 31 via branch pipe 32. Simultaneously, the heated immersion liquid in the liquid cooling tank 13 is also drawn into the extraction pipe 31 via branch pipe 33. These two high-temperature liquid streams are transported together to the heat exchanger 3 through the extraction pipe 31. Inside the heat exchanger 3, the heat from the server 15 carried by the coolant is efficiently transferred to the external cooling water system, lowering the coolant temperature and restoring it to a reusable low-temperature state. The regenerated liquid flows out from the outlet at the bottom of the heat exchanger 3, is transported to the extraction pump 34 via the circulation pipe 35, and is finally pumped back to the top storage tank 2 by the extraction pump 34, forming a complete closed loop.

[0026] Throughout the operation, three liquid level sensors 16 installed on the inner wall of the liquid cooling tank 13 continuously monitor the liquid level inside the tank and feed the data back to the control module 12 in real time. Once an abnormal liquid level is detected, the system will immediately trigger an alarm, effectively preventing heat dissipation failures caused by liquid leakage or evaporation. The cooling fan 4 provides auxiliary cooling for the interior of the cabinet 1. Finally, when the workload of the server 15 decreases or system maintenance is required, the operator can stop the system operation through the control module 12, and then use the handle in front of the cabinet door 11 to open the cabinet door 11, allowing for safe and convenient inspection and replacement of the server 15 or other system components inside the liquid cooling tank 13.

Claims

1. A server rack liquid cooling structure, characterized in that: The system includes a cabinet (1), a cabinet door (11), a control module (12), a liquid cooling box (13), a liquid cooling plate (14), a liquid storage tank (2), an inlet pipe (21), an infusion pump (22), an infusion pipe (23), a branch pipe one (24), a branch pipe two (25), a heat exchanger (3), a liquid extraction pipe (31), a branch pipe three (32), a branch pipe four (33), a liquid extraction pump (34), and a circulation pipe (35). The cabinet door (11) is hinged to the front of the cabinet (1). A control module (12) is installed on the upper part of the door (11). Four liquid cooling boxes (13) are installed inside the cabinet (1). Liquid cooling plates (14) are installed in a vertically distributed manner inside the liquid cooling boxes (13). Liquid storage tanks (2) are installed on the upper left and lower right sides of the cabinet (1). Liquid inlet pipes (21) are connected to the middle of the top of each liquid storage tank (2). Infusion pumps (22) are installed at the bottom of each liquid storage tank (2). Infusion pipes (23) are connected to the outlet of each infusion pump (22). Each infusion tube (23) is connected to a branch pipe (25) at the inlet of the liquid cooling plate (14), and two branch pipes (24) are also connected to the infusion tube (23). The branch pipes (24) extend into the corresponding liquid cooling box (13). A heat exchanger (3) is installed on the rear side of the cabinet (1). The liquid extraction ports on the upper left and right sides of the heat exchanger (3) are connected to a liquid extraction pipe (31), and the liquid extraction pipe (31) is connected to the outlet of the liquid cooling plate (14). Branch pipe three (32) and two branch pipe four (33) are connected to the liquid extraction pipe (31). The branch pipe four (33) are all inserted into the corresponding liquid cooling box (13). The top of the liquid storage tank (2) is equipped with a liquid extraction pump (34). The liquid extraction end of the liquid extraction pump (34) is connected to the liquid outlet on the corresponding side of the lower part of the heat exchanger (3) with a circulation pipe (35). The control module (12) is electrically connected to the infusion pump (22), the heat exchanger (3) and the liquid extraction pump (34).

2. The server rack liquid cooling structure according to claim 1, characterized in that: It also includes servers (15), with servers (15) installed between the liquid cooling plates (14) in each liquid cooling box (13).

3. The server rack liquid cooling structure according to claim 2, characterized in that: A handle is provided on the left side of the front part of the cabinet door (11).

4. A server rack liquid cooling structure according to claim 3, characterized in that: It also includes a liquid level sensor (16). Three liquid level sensors (16) are installed horizontally on the inner wall of the left side of the liquid cooling box (13). The control module (12) is electrically connected to the liquid level sensor (16).

5. A server rack liquid cooling structure according to claim 4, characterized in that: It also includes an outer shell (20). The upper right side and lower left side of the cabinet (1) are connected to the outer shell (20). The infusion tube (23), branch tube one (24), branch tube two (25), suction tube (31), branch tube three (32) and branch tube four (33) are all located inside the outer shell (20).

6. A server rack liquid cooling structure according to claim 5, characterized in that: It also includes a cooling fan (4), with the top and bottom of the cabinet (1) both embedded with the cooling fan (4), and the control module (12) is electrically connected to the cooling fan (4).

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