Server immersion liquid cooling device

Abstract

The utility model relates to a server immersion liquid cooling device in the field of liquid cooling devices, which comprises a box body, a heat dissipation outer machine and a server, an accommodating chamber is arranged in the box body, cooling liquid is arranged in the accommodating chamber, the cooling liquid immerses the surface of the server, a partition plate is arranged on the inner wall of the accommodating chamber, and the heat dissipation outer machine is arranged in the partition plate. Liquid circulation openings are formed between the partition plate and the bottom face of the containing chamber and between the partition plate and the top face of the containing chamber, the partition plate divides the containing chamber into a heat absorption cavity and a heat dissipation cavity, the heat absorption cavity and the heat dissipation cavity are communicated with each other through the liquid circulation openings, the servers are perpendicular to the bottom face of the heat absorption cavity, and a cooling channel is formed between every two adjacent servers. A plurality of vertical heat absorption fins are arranged in the heat dissipation cavity, a heat absorption channel is formed between every two adjacent heat absorption fins, cooling liquid immerses the surfaces of the heat absorption fins, the heat dissipation outer unit and the heat absorption fins are connected in a heat exchange mode, the heat exchange frequency in the whole heat dissipation process is reduced, the heat dissipation efficiency is improved, meanwhile, external pipeline connection is reduced, and the heat dissipation efficiency is improved. The leakage risk is reduced.

Description

Technical Field

[0001] The utility model relates to the field of liquid cooling devices, in particular to a server immersion liquid cooling device. Background Art

[0002] A server is a specific IT device that provides computing power and runs software applications in a network environment. It provides computing or application services for other client machines in the network, such as personal computers, smart phones, ATM machines and other terminal devices. It usually has the ability to undertake response service requests, undertake services, and guarantee services. Servers are widely used in various fields, mainly including network services, data storage and backup, client management, virtualization and cloud computing, game servers, scientific computing and big data analysis. In order to ensure the stable operation and extend the service life of the server, regular maintenance and upkeep work is required, including paying attention to the construction of the computer room environment, doing a good job in hardware maintenance, maintaining the server software, doing a good job in power control and password management, etc.

[0003] A large amount of heat is generated during the operation of the server. If the heat cannot be dissipated in time, it will cause the internal temperature of the server to rise, which will in turn affect the performance and stability of the server, and even cause hardware failures and data loss. Therefore, effective heat dissipation is an important measure to ensure the normal operation of the server. The main server heat dissipation methods are air cooling and liquid cooling.

[0004] The existing liquid cooling of servers usually includes a box body, a server, heat conducting fins and a cooling external machine. The server and the heat conducting fins are installed in the box body. The heat conducting fins are located above the server. The box body is provided with a coolant to immerse the server. The coolant transfers heat with the heat conducting fins through a heat conducting pipe. A refrigerant pipe is arranged between the cooling external machine and the heat conducting fins. The refrigerant in the refrigerant pipe absorbs the heat of the heat conducting fins and is cooled by the cooling external machine. The heat of the server is sequentially transferred to the coolant, the heat conducting pipe, the heat conducting fins, the refrigerant, and finally the heat is dissipated to the outside through the cooling external machine. The heat needs to be transferred through multiple stages, resulting in low cooling efficiency. Summary of the Utility Model

[0005] In order to overcome the deficiencies of the prior art solutions, the utility model provides a server immersion liquid cooling device, which can effectively solve the technical problem that the heat needs to be transferred through multiple stages, resulting in low cooling efficiency.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A server immersion liquid cooling device, comprising a box body, a heat dissipation external machine and more than two servers. A receiving chamber is arranged inside the box body, and the servers are arranged in the receiving chamber. A coolant is arranged in the receiving chamber, and the surface of the servers is immersed in the coolant. A partition plate is arranged on the inner wall of the receiving chamber, the partition plate is perpendicular to the bottom surface of the receiving chamber, and liquid flow ports are formed between the partition plate and both the bottom surface and the top surface of the receiving chamber. The partition plate divides the receiving chamber into a heat absorption chamber and a heat dissipation chamber, and the heat absorption chamber and the heat dissipation chamber are communicated with each other through the liquid flow ports. More than two servers are all arranged in the heat absorption chamber, the servers are perpendicular to the bottom surface of the heat absorption chamber, and a cooling channel is formed between adjacent two servers. A plurality of vertical heat absorption fins are arranged in the heat dissipation chamber, and a heat absorption channel is formed between adjacent two heat absorption fins. The surface of the heat absorption fins is immersed in the coolant, and the heat dissipation external machine is connected to the heat absorption fins for heat exchange.

[0008] Further, a guide rail bracket is arranged in the heat absorption chamber, and more than two positioning grooves are arranged in the guide rail bracket. The number of the positioning grooves is the same as the number of the servers, and the servers can be inserted into the positioning grooves.

[0009] Further, a fin heat absorption tube is also arranged in the heat dissipation chamber. The surface of the fin heat absorption tube passes through a plurality of heat absorption fins and extends to the surface of the box body at both ends. Both ends of the fin heat absorption tube are respectively connected to the heat dissipation external machine through an outlet pipe and a return pipe. A refrigerant is arranged in the fin heat absorption tube, the outlet pipe, the heat dissipation external machine and the return pipe, and the refrigerant flows in sequence and circulates continuously in the fin heat absorption tube, the outlet pipe, the heat dissipation external machine and the return pipe.

[0010] Further, two partition plates are arranged. The two partition plates divide the receiving chamber into one heat absorption chamber and two heat dissipation chambers. The two heat dissipation chambers are symmetrically arranged on both sides of the heat absorption chamber. Heat absorption fins and fin heat absorption tubes are arranged in both heat dissipation chambers. The fin heat absorption tubes in the two heat absorption chambers extend to the outside of the box body and are communicated with each other, and the outlet pipe and the return pipe are connected between the two fin heat absorption tubes.

[0011] Further, a propeller is arranged in the heat absorption chamber. The axis of the propeller is parallel to the cooling channel. The propeller is located below the servers, and the propeller can transport the coolant at the bottom of the heat absorption chamber to the servers.

[0012] Further, a cover plate for covering the receiving chamber is arranged on the surface of the box body. A sealing groove is arranged at the edge of the receiving chamber, a sealing rubber ring is arranged in the sealing groove, and the cover plate presses the surface of the sealing rubber ring after being covered with the box body.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The surface of the server and the heat absorption fins is immersed in the coolant. The partition plate divides the accommodation chamber into a heat absorption chamber and a heat dissipation chamber. The heat of the server is transferred to the surrounding coolant. After the coolant absorbs heat, its density becomes smaller due to the increase in temperature. The heated coolant rises to the top of the heat absorption chamber and flows to the heat dissipation chamber through the liquid circulation port. After the heated coolant contacts the low-temperature heat absorption fins in the heat dissipation chamber, the heat of the coolant is absorbed by the heat absorption fins. After the temperature of the coolant decreases, its density becomes larger and it sinks in the heat dissipation chamber. The coolant at the bottom of the heat dissipation chamber flows to the heat absorption chamber through the liquid circulation port. When the coolant contacts the server in the heat absorption chamber, its temperature rises and its density decreases, and then it rises to the top of the heat absorption chamber. This cycle continues. The heat absorption fins directly exchange heat with the external heat dissipation machine, reducing the number of heat exchange times in the entire heat dissipation process and improving the heat dissipation efficiency. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of the first embodiment of the present utility model;

[0015] Figure 2 It is a cross-sectional view of the first embodiment of the present utility model;

[0016] Figure 3 It is a schematic diagram of the heat absorption fins and the fin heat absorption tubes in the first embodiment of the present utility model;

[0017] Figure 4 It is a schematic diagram of the circulation of the coolant and the refrigerant in the first embodiment of the present utility model;

[0018] Figure 5 It is a schematic diagram of the heat absorption fins, the fin heat absorption tubes and the propeller in the first embodiment of the present utility model;

[0019] Figure 6 It is a schematic diagram of the circulation of the coolant and the refrigerant in the second embodiment of the present utility model; Reference numerals in the figure: 1 - box body, 2 - external heat dissipation machine, 3 - server, 4 - cover plate, 5 - partition plate, 6 - liquid circulation port, 7 - heat absorption chamber, 8 - heat dissipation chamber, 9 - propeller, 10 - heat absorption fins, 11 - fin heat absorption tubes, 12 - liquid outlet pipe, 13 - liquid return pipe. Detailed Embodiment

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Embodiment 1:

[0022] As shown Figures 1 - 4 in the figure, a server immersion liquid cooling device includes a box body 1, a heat dissipation external machine 2 and eight servers 3. A receiving chamber is arranged inside the box body 1. The servers 3 are arranged in the receiving chamber. A coolant is arranged in the receiving chamber, and the surface of the servers 3 is immersed in the coolant. A cover plate 4 for covering the receiving chamber is arranged on the surface of the box body 1. A sealing groove is arranged at the edge of the receiving chamber, and a sealing rubber ring is arranged in the sealing groove. After the cover plate 4 is covered with the box body 1, the surface of the sealing rubber ring is pressed tightly to prevent the coolant from leaking out of the receiving chamber.

[0023] A partition plate 5 is arranged on the inner wall of the receiving chamber. The partition plate 5 is perpendicular to the bottom surface of the receiving chamber. Liquid circulation ports 6 are formed between the partition plate 5 and both the bottom surface and the top surface of the receiving chamber. The partition plate 5 divides the receiving chamber into a heat absorption chamber 7 and a heat dissipation chamber 8. The heat absorption chamber 7 and the heat dissipation chamber 8 are communicated with each other through the liquid circulation ports 6. Two or more servers 3 are arranged in the heat absorption chamber 7 at equal intervals. The servers 3 are perpendicular to the bottom surface of the heat absorption chamber 7. A cooling channel is formed between two adjacent servers 3. A number of vertical heat absorption fins 10 are arranged in the heat dissipation chamber 8. The number of the heat absorption fins 10 is arranged at equal intervals. A heat absorption channel is formed between two adjacent heat absorption fins 10. The surface of the heat absorption fins 10 is immersed in the coolant. A propeller 9 is arranged in the heat absorption chamber 7. The axis of the propeller 9 is parallel to the cooling channel. The propeller 9 is located below the servers 3. The propeller 9 can transport the coolant at the bottom of the heat absorption chamber 7 to the servers 3 to improve the circulation speed of the coolant.

[0024] The heat dissipation external machine 2 is connected to the heat absorption fins 10 in a heat exchangeable manner. A fin heat absorption tube 11 is further arranged in the heat dissipation chamber 8. The surface of the fin heat absorption tube 11 passes through a number of heat absorption fins 10 and extends to the surface of the box body 1 at both ends. The two ends of the fin heat absorption tube 11 are respectively connected to the heat dissipation external machine 2 through an outlet pipe 12 and a return pipe 13. A refrigerant is arranged in the fin heat absorption tube 11, the outlet pipe 12, the heat dissipation external machine 2 and the return pipe 13. The refrigerant flows in sequence and circulates continuously in the fin heat absorption tube 11, the outlet pipe 12, the heat dissipation external machine 2 and the return pipe 13 to keep the temperature of the heat absorption fins 10 lower than the temperature of the coolant.

[0025] A guide rail bracket is arranged in the heat absorption chamber 7. Eight positioning grooves are arranged in the guide rail bracket. The number of the positioning grooves is the same as the number of the servers 3. The servers 3 can be inserted into the positioning grooves. There are two partition plates 5. The two partition plates 5 divide the receiving chamber into one heat absorption chamber 7 and two heat dissipation chambers 8. The two heat dissipation chambers 8 are symmetrically arranged on both sides of the heat absorption chamber 7. Heat absorption fins 10 and fin heat absorption tubes 11 are arranged in both heat dissipation chambers 8 to improve the heat exchange efficiency between the coolant and the fin heat absorption tubes 11. The fin heat absorption tubes 11 in the two heat absorption chambers 7 extend to the outside of the box body 1 and are communicated with each other. The outlet pipe 12 and the return pipe 13 are connected between the two fin heat absorption tubes 11.

[0026] A server immersion liquid cooling device according to this embodiment, the surface of the coolant immerses the server 3 and the heat absorption fins 10, and the partition plate 5 divides the accommodation chamber into a heat absorption chamber 7 and a heat dissipation chamber 8. As Figure 4 described, the heat of the server 3 is transferred to the surrounding coolant. After the coolant in the cooling channel absorbs heat, its density becomes smaller due to the increase in temperature. The heated coolant rises to the top of the heat absorption chamber 7 and flows to the heat dissipation chamber 8 through the liquid circulation port 6. After the heated coolant contacts the low-temperature heat absorption fins 10 in the heat dissipation chamber 8, the heat of the coolant is absorbed by the heat absorption fins 10. After the temperature of the coolant decreases, its density becomes larger and it sinks in the heat dissipation channel. The coolant at the bottom of the heat dissipation chamber 8 flows to the heat absorption chamber 7 through the liquid circulation port 6. The propeller 9 makes the coolant at the bottom of the heat absorption chamber 7 flow to the server 3. When the coolant contacts the server 3 in the heat absorption chamber 7, its temperature rises and its density decreases, and then it rises to the top of the heat absorption chamber 7. In this way, the refrigerant flows through the fin heat absorption pipe 11, the liquid outlet pipe 12, the outdoor heat dissipation machine 2 and the liquid return pipe 13 in turn and circulates continuously. After the refrigerant absorbs the heat of the heat absorption fins 10 in the fin heat absorption pipe 11, it flows to the outdoor heat dissipation machine 2 through the liquid outlet pipe 12. The outdoor heat dissipation machine 2 dissipates the heat to the outside. The cooled refrigerant returns to the fin heat absorption pipe 11 through the liquid return pipe 13 to continue absorbing heat. In this way, the number of heat exchanges in the entire heat dissipation process is reduced, the heat dissipation efficiency is improved, and at the same time, the external pipeline connection is reduced, and the leakage risk is reduced.

[0027] Embodiment 2

[0028] As Figure 5 and Figure 6 shown, the difference between this embodiment and the first embodiment is that the axis of the propeller 9 is parallel to the heat absorption channel, the propeller 9 is located above the heat absorption fins 10, and the propeller 9 can transport the coolant at the top of the heat absorption chamber 7 to the heat absorption fins 10, further improving the circulation speed of the coolant.

[0029] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A server immersion liquid cooling device, comprising a box, a heat dissipation external unit and two or more servers, wherein a receiving chamber is provided in the box, the server is arranged in the receiving chamber, a cooling liquid is provided in the receiving chamber, and the cooling liquid immerses the surface of the server, characterized in that: A partition plate is provided on the inner wall of the accommodation chamber, and the partition plate is perpendicular to the bottom surface of the accommodation chamber. Liquid circulation ports are formed between the partition plate and the bottom surface of the accommodation chamber and the top surface of the accommodation chamber. The partition plate separates the accommodation chamber into a heat absorption chamber and a heat dissipation chamber, and the heat absorption chamber and the heat dissipation chamber are interconnected through the liquid circulation port. More than two servers are arranged in the heat absorption chamber, and the servers are perpendicular to the bottom surface of the heat absorption chamber. A cooling channel is formed between two adjacent servers. A plurality of vertical heat absorption fins are arranged in the heat dissipation chamber, and a heat absorption channel is formed between two adjacent heat absorption fins. The cooling liquid immerses the surface of the heat absorption fins, and the heat dissipation external unit is connected to the heat absorption fins in a heat exchangeable manner.

2. A server immersion liquid cooling device according to claim 1, characterized in that: A guide rail bracket is arranged in the heat absorption cavity, and more than two positioning grooves are arranged in the guide rail bracket. The number of the positioning grooves is consistent with the number of servers, and the servers can be inserted into the positioning grooves.

3. The server immersion liquid cooling device according to claim 1, characterized in that: A finned heat absorption tube is also provided in the heat dissipation cavity. The surface of the finned heat absorption tube passes through a plurality of heat absorption fins, and both ends extend to the surface of the box body. Both ends of the finned heat absorption tube are connected to the heat dissipation external machine through a liquid outlet pipe and a liquid return pipe respectively. Refrigerant is provided in the finned heat absorption tube, the liquid outlet pipe, the heat dissipation external machine and the liquid return pipe. The refrigerant flows in the finned heat absorption tube, the liquid outlet pipe, the heat dissipation external machine and the liquid return pipe in sequence and circulates continuously.

4. A server immersion liquid cooling device according to claim 3, characterized in that: There are two partition plates, which separate the accommodating chamber into a heat absorption chamber and two heat dissipation chambers. The two heat dissipation chambers are symmetrically arranged on both sides of the heat absorption chamber. Heat absorption fins and fin heat absorption tubes are arranged in the two heat absorption chambers. The fin heat absorption tubes in the two heat absorption chambers extend to the outside of the box body and are interconnected. The liquid outlet pipe and the liquid return pipe are connected between the two fin heat absorption tubes.

5. A server immersion liquid cooling device according to any one of claims 1 to 4, characterized in that: A propeller is arranged in the heat absorption chamber, the axis of the propeller is parallel to the cooling channel, the propeller is located below the server, and the propeller can transport the cooling liquid at the bottom of the heat absorption chamber to the server.

6. A server immersion liquid cooling device according to any one of claims 1 to 4, characterized in that: A propeller is arranged in the heat absorption chamber, the axis of the propeller is parallel to the heat absorption channel, the propeller is located above the heat absorption fins, and the propeller can transport the cooling liquid on the top of the heat absorption chamber to the heat absorption fins.

7. A server immersion liquid cooling device according to any one of claims 1 to 4, characterized in that: The surface of the box body is provided with a cover plate for covering the accommodation chamber, the edge of the accommodation chamber is provided with a sealing groove, a sealing rubber ring is provided in the sealing groove, and the surface of the sealing rubber ring is pressed tightly after the cover plate and the box body are covered.

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