A liquid cooling plate for a data center

Abstract

The present invention provides a liquid cooling plate for a data center, which relates to the technical field of liquid cooling heat dissipation. A shunt channel, a confluence channel, and multiple bionic flow channels are formed inside the liquid cooling plate for the data center. The multiple bionic flow channels are connected in parallel between the shunt channel and the confluence channel to form a flow channel system for the cooling medium to flow through. The inner walls of the bionic flow channels have bionic textures that simulate the surface of a dolphin's skin, and vortices are formed when the cooling medium flows through the bionic textures. Multiple branch flow channels are also formed on the sides of each bionic flow channel. The multiple branch flow channels are arranged in sequence along the length direction of the bionic flow channel. Both ends of each branch flow channel are connected to the bionic flow channel, and the two ends of each branch flow channel are located at the upstream and downstream of the cooling medium respectively. The branch flow channels are used to shunt the resistance of the cooling medium in the bionic flow channel. The liquid cooling plate for the data center provided by the present invention can enhance the heat transfer performance of the cooling medium and reduce the flow resistance, so that the temperature of the liquid cooling plate for the data center is evenly distributed.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid cooling heat dissipation, and particularly to a liquid cooling plate for a data center. Background Art

[0002] IT information technology devices such as computing, storage, and networking are stored inside a data center. During the operation of the data center, a large amount of heat is generated. To maintain the normal operation of the devices, the data center currently often adopts the liquid cooling plate cooling technology for server cooling. At present, high-performance chips are widely used in data centers. High-performance electronic chips have a higher operating speed, but the high heat flux density generated by the higher-speed operation poses challenges to the thermal management of the chips and the liquid cooling technology of the data center.

[0003] Microchannel liquid cooling plates have a high heat transfer coefficient and have a significant cooling effect on high heat flux density electronic chips. Therefore, they have been widely used in the liquid cooling field of data centers. However, traditional microchannel liquid cooling plates have problems such as high pressure drop and uneven temperature. Some patents have proposed some microchannel liquid cooling plate structures for the field of electronic component cooling. For example, Patent CN219016929U designs a server liquid cooling plate structure, including a main body. A plurality of flow channels are provided on the main body. The plurality of flow channels are arranged in parallel, and the flow channels penetrate the main body from the end of the main body. A partition rib is provided between two adjacent flow channels. However, the flow resistance of the flow channels of this cold plate structure is relatively large, and the flow channel turbulence effect is poor, and the heat dissipation efficiency is low. Patent CN212209693U also designs a liquid cooling plate structure in the form of a stamping cold plate, including a lower substrate, an upper substrate, and a copper tube. An S-shaped groove body is opened at the top of the lower substrate, and a through-separating long hole is opened on the right side of the lower substrate. The copper tube is located in the groove bodies of the S-shaped groove body and the heating groove. One end of the copper tube extending out of the left side of the lower substrate is provided with a liquid inlet pipe joint, and one end of the copper tube extending out of the right side of the lower substrate is provided with a liquid outlet pipe joint. However, the flow channel length of this cold plate structure is relatively long, the flow resistance is relatively large, the temperature uniformity of the cold plate is poor, and the flow channel turbulence effect is small, and the heat transfer performance is weak.

[0004] In view of this, based on the production design experience of the inventor in this field and related fields for many years, after repeated tests, a liquid cooling plate for a data center is designed to solve the problems existing in the prior art. Summary of the Invention

[0005] The purpose of the present invention is to provide a liquid cooling plate for a data center, which can enhance the heat transfer performance of the cooling medium and reduce the flow resistance, so that the temperature of the liquid cooling plate for the data center is evenly distributed.

[0006] To achieve the above object, the present invention provides a liquid cooling plate for a data center. In the liquid cooling plate for the data center, a shunt channel, a confluence channel, and a plurality of bionic channels are formed. The plurality of bionic channels are connected in parallel between the shunt channel and the confluence channel to form a channel system for a cooling medium to flow through. The inner wall of each bionic channel has a bionic texture that simulates the surface of a dolphin skin, and vortices are formed when the cooling medium flows through the bionic texture.

[0007] Compared with the prior art, the present invention has the following features and advantages:

[0008] In the liquid cooling plate for the data center provided by the present invention, the cooling medium is evenly shunted into a plurality of bionic channels through the shunt channel. The inner wall of each bionic channel has a bionic texture that simulates the surface of a dolphin skin. The bionic texture simulates the microscopic structure of the dolphin skin through bionics principles. When the cooling medium flows through the bionic texture, tiny vortices are formed, which not only increases the contact area between the cooling medium and the inner wall of the bionic channel and improves the heat exchange efficiency, but also reduces the boundary layer thickness of the cooling medium and enhances the disturbance ability of the cooling medium in the bionic channel, ensuring that the temperature distribution of the cooling medium in the bionic channel is more uniform, thereby significantly improving the heat dissipation efficiency of the liquid cooling plate for the data center. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure in any way. Additionally, the shapes and proportional dimensions of the components in the drawings are only schematic and are used to assist in understanding the present invention, rather than specifically defining the shapes and proportional dimensions of the components of the present invention. Those skilled in the art can, under the teaching of the present invention, select various possible shapes and proportional dimensions according to specific circumstances to implement the present invention.

[0010] Figure 1 It is a schematic diagram of the channel system of the liquid cooling plate for the data center provided by the present invention;

[0011] Figure 2 It is a schematic diagram of the structure of the cover plate in the present invention;

[0012] Figure 3 It is a schematic diagram of the structure of the bionic texture in the present invention.

[0013] DESCRIPTION OF THE REFERENCE NUMERALS

[0014] 100, liquid cooling plate for a data center;

[0015] 110, bottom plate;

[0016] 111, first screw hole;

[0017] 112, second screw hole;

[0018] 113, third screw hole;

[0019] 114. Fourth screw hole;

[0020] 120. Cover plate;

[0021] 121. First bolt;

[0022] 122. Second bolt;

[0023] 123. Third bolt;

[0024] 124. Fourth bolt;

[0025] 125. Fifth screw hole;

[0026] 126. Sixth screw hole;

[0027] 127. Seventh screw hole;

[0028] 128. Eighth screw hole;

[0029] 10. Diversion channel;

[0030] 11. Cooling medium inlet;

[0031] 12. Diversion hole;

[0032] 20. Confluence channel;

[0033] 21. Cooling medium outlet;

[0034] 22. Confluence hole;

[0035] 30. Bionic flow channel;

[0036] 31. Bionic texture;

[0037] 311. Groove;

[0038] 312. Protrusion;

[0039] 40. Branch flow channel. Detailed implementation manners

[0040] Combined with the description of the accompanying drawings and the specific implementation manners of the present invention, the details of the present invention can be more clearly understood. However, the specific implementation manners of the present invention described herein are only for the purpose of explaining the present invention and cannot be understood in any way as a limitation of the present invention. Under the teaching of the present invention, those skilled in the art can conceive any possible variations based on the present invention, and these should all be regarded as belonging to the scope of the present invention.

[0041] Such as Figure 1As shown in the figure, the present invention provides a liquid cooling plate 100 for a data center. A diversion channel 10, a confluence channel 20, and multiple bionic channels 30 are provided in the liquid cooling plate 100 for the data center. The multiple bionic channels 30 are connected in parallel between the diversion channel 10 and the confluence channel 20 to form a channel system for the cooling medium to flow through. The inner walls of the bionic channels 30 have bionic textures 31 that simulate the surface of a dolphin's skin. When the cooling medium flows through the bionic textures 31, vortices are formed.

[0042] For the liquid cooling plate 100 for the data center proposed by the present invention, the cooling medium is evenly diverted into multiple bionic channels 30 through the diversion channel 10. The inner walls of the bionic channels 30 have bionic textures 31 that simulate the surface of a dolphin's skin. The bionic textures 31 simulate the microscopic structure of a dolphin's skin through bionics principles. When the cooling medium flows through the bionic textures 31, tiny vortices will be formed, which not only increases the contact area between the cooling medium and the inner walls of the bionic channels 30 and improves the heat exchange efficiency, but also reduces the boundary layer thickness of the cooling medium, enhances the disturbance ability of the cooling medium in the bionic channels 30, ensures that the temperature distribution of the cooling medium in the bionic channels 30 is more uniform, and significantly improves the heat dissipation efficiency of the liquid cooling plate 100 for the data center.

[0043] In an optional embodiment of the present invention, as Figure 3 shown, the bionic texture 31 includes a plurality of grooves 311 and a plurality of protrusions 312 that are periodically distributed. The grooves 311 mimic the fine grooves of a dolphin's skin, which helps to reduce the boundary layer thickness of the cooling medium, enables the cooling medium to be more evenly distributed on the surface of the channel, and improves the heat dissipation effect. The protrusions 312 mimic the irregular protrusions on the surface of a dolphin's skin, which can increase the contact area between the surface of the channel and the cooling medium, enhance the disturbance ability of the cooling medium in the bionic channels 30, and thus increase the heat exchange efficiency.

[0044] In an optional example, one protrusion 312 is provided between every two adjacent grooves 311.

[0045] In an optional embodiment of the present invention, a plurality of branch channels 40 are further provided on the sides of each bionic channel 30. The plurality of branch channels 40 are arranged in sequence along the length direction of the bionic channel 30. Both ends of each branch channel 40 are connected to the bionic channel 30, and both ends of each branch channel 40 are located upstream and downstream of the cooling medium respectively. The branch channels 40 are used to divert the resistance of the cooling medium in the bionic channels 30. With the above structure, the cooling medium is diverted through the multiple bionic channels 30, so that the flow resistance of the cooling medium in different regions of the bionic channels 30 can be kept consistent, effectively avoiding the problems of uneven flow velocity and uneven temperature of the cooling medium, and finally ensuring that when the cooling medium flows through the channel system of the liquid cooling plate 100 for the data center, it can be more evenly distributed in each region of the liquid cooling plate 100 for the data center, ensuring that heat can be taken away efficiently and evenly.

[0046] In an alternative example of this embodiment, a plurality of branch channels 40 are symmetrically arranged on both sides of each bionic channel 30. With the above structure, the cooling medium is divided into two streams through the two symmetrically arranged branch channels 40, and then converges with the ends of the branch channels 40 into the bionic channel 30. The cooling medium mixed in the bionic channel 30 is then diverted into the next two branch channels 40, and so on. Through the design of multiple branch channels 40, the cooling medium is evenly distributed multiple times, effectively avoiding local overheating.

[0047] In an alternative example, each branch channel 40 is arc-shaped to make the flow of the cooling medium in the branch channel 40 smoother.

[0048] Furthermore, a plurality of branch channels 40 are arranged in sequence on the side of the bionic channel 30 to form a B-shaped structure to achieve uniform diversion and convergence of the cooling medium.

[0049] In an alternative example, the widths of the branch channels 40 are the same, further ensuring uniform diversion of the cooling medium.

[0050] In an alternative embodiment of the present invention, the diversion channel 10 has a cooling medium inlet 11, and a plurality of diversion holes 12 are provided in the diversion channel 10. Each bionic channel 30 is connected to the diversion channel 10 through a corresponding diversion hole 12. The confluence channel 20 has a cooling medium outlet 21, and a plurality of confluence holes 22 are provided in the confluence channel 20. Each bionic channel 30 is connected to the confluence channel 20 through the confluence holes 22. With the above structure, the cooling medium flows into the diversion channel 10 through the cooling medium inlet 11 and evenly flows into the bionic channel 30 and the branch channels 40 through a plurality of diversion holes 12. After the cooling medium absorbs the heat on the surface of the liquid cooling plate 100 of the data center, it then flows into the confluence channel 20 through a plurality of confluence holes 22 and finally flows out through the cooling medium outlet 21. In this way, the cooling process is completed in a cycle.

[0051] In an alternative example of this embodiment, the diversion channel 10 and the confluence channel 20 are arranged in parallel at intervals. A plurality of diversion holes 12 are arranged in sequence along the length direction of the diversion channel 10, and a plurality of confluence holes 22 are respectively arranged in sequence along the length direction of the confluence channel 20.

[0052] In an alternative example, the apertures of the plurality of diversion holes 12 and the apertures of the plurality of confluence holes 22 are the same.

[0053] In another alternative example, the apertures of the plurality of diversion holes 12 and the apertures of the plurality of confluence holes 22 decrease in gradient along the flow direction of the cooling medium to balance the pressure distribution in the flow channel system.

[0054] In an alternative embodiment of the present invention, as Figure 1 ,Figure 2 As shown in Figure 2 , the liquid cooling plate 100 of the data center includes a bottom plate 110 and a cover plate 120. One surface of the bottom plate 110 is a flow channel plane, and the diversion channel 10, the confluence channel 20, and multiple bionic flow channels 30 are all opened on this flow channel plane. The cover plate 120 is covered on the flow channel plane and is hermetically and fixedly connected to the bottom plate 110.

[0055] In an optional example of this embodiment, the bottom plate 110 and the cover plate 120 are hermetically and fixedly connected together by a bolt structure.

[0056] In an optional example, the external dimensions of the bottom plate 110 and the cover plate 120 are the same.

[0057] Furthermore, a first screw hole 111 is provided at the upper left corner of the bottom plate 110, a second screw hole 112 is provided at the upper right corner, a third screw hole 113 is provided at the lower right corner, and a fourth screw hole 114 is provided at the lower left corner; a fifth screw hole 125 is provided at the upper left corner of the cover plate 120, a sixth screw hole 126 is provided at the upper right corner, a seventh screw hole 127 is provided at the lower right corner, and an eighth screw hole 128 is provided at the lower left corner. A first bolt 121 is provided at the upper left corner of the cover plate 120, a second bolt 122 is provided at the upper right corner, a third bolt 123 is provided at the lower right corner, and a fourth bolt 124 is provided at the lower left corner; the first bolt 121 is connected to the first screw hole 111 through the fifth screw hole 125, the second bolt 122 is connected to the second screw hole 112 through the sixth screw hole 126, the third bolt 123 is connected to the third screw hole 113 through the seventh screw hole 127, and the fourth bolt 124 is connected to the fourth screw hole 114 through the eighth screw hole 128, thereby tightly combining the bottom plate 110 and the cover plate 120 together to form a closed flow channel system.

[0058] In an optional embodiment of the present invention, the bottom plate 110 and the cover plate 120 are made of aluminum, copper, or a thermally conductive composite material, having high thermal conductivity and improving the heat dissipation efficiency of the liquid cooling plate 100 of the data center.

[0059] Please refer to Figure 1 and Figure 2 , and now the specific operation process of the liquid cooling plate 100 of the data center proposed by the present invention will be described in detail in combination with an embodiment.

[0060] The cooling medium flows into the shunt channel 10 through the cooling medium inlet 11, and evenly flows towards the bionic flow channel 30 and the branch flow channel 40 through a number of shunt holes 12 arranged in parallel. Through the design of the branch flow channel 40, the cooling medium is evenly distributed in the bionic flow channel 30 to avoid local overheating. The bionic texture 31 increases the contact area between the cooling medium and the interior of the bionic flow channel 30, has a certain disturbing effect on the flow of the cooling medium, reduces the boundary layer thickness at the same time, and improves the heat exchange efficiency. After absorbing a large amount of heat from the surfaces of the bottom plate 110 and the cover plate 120, the cooling medium then flows towards the confluence channel 20 through a number of confluence holes 22 arranged in parallel, and finally flows out through the cooling medium outlet 21. In this way, the cooling process is completed, thereby reducing the flow resistance of the cooling medium in the flow channel system, ensuring uniform temperature distribution of the liquid cooling plate 100 in the data center, enhancing the disturbing ability of the cooling medium in the flow channel system, and significantly improving the heat dissipation efficiency of the liquid cooling plate 100 in the data center.

[0061] The detailed explanations for the above embodiments are only for the purpose of explaining the present invention so as to better understand the present invention. However, these descriptions cannot be construed as limitations on the present invention for any reason. In particular, the various features described in different embodiments can be arbitrarily combined with each other to form other embodiments. Unless there are explicit contrary descriptions, these features should be understood to be applicable to any one of the embodiments and not limited to the described embodiments only.

Claims

1. A data center liquid cooling plate, characterized in that: The data center liquid cooling plate is provided with a shunt channel, a confluence channel and a plurality of bionic flow channels, and the plurality of bionic flow channels are connected in parallel between the shunt channel and the confluence channel to form a flow channel system for the flow of cooling medium, and the inner wall of each bionic flow channel has a bionic texture simulating the surface of dolphin skin, and the cooling medium forms a vortex when flowing through the bionic texture; A plurality of branch flow channels are also provided on the side of each of the bionic flow channels, and the plurality of branch flow channels are sequentially arranged along the length direction of the bionic flow channel, and both ends of each of the branch flow channels are connected to the bionic flow channel, and both ends of each of the branch flow channels are respectively located upstream and downstream of the cooling medium, and the branch flow channels are used to divert the resistance of the cooling medium in the bionic flow channel; The bionic texture includes a plurality of grooves and a plurality of protrusions distributed periodically; A plurality of branch flow channels are symmetrically arranged on both sides of each bionic flow channel; each branch flow channel is in an arc shape; a plurality of branch flow channels are sequentially arranged on the sides of the bionic flow channel to form a B-shaped structure; The cooling medium is divided into two streams through the two symmetrically arranged branch flow channels, and then merges into the bionic flow channel at the end of each branch flow channel. The cooling medium mixed in the bionic flow channel is then diverted to the next two branch flow channels, and so on. Through the design of multiple branch flow channels, the cooling medium is evenly distributed multiple times.

2. The data center liquid cooling panel according to claim 1, characterized in that: The widths of the branch flow channels are the same.

3. The data center liquid cooling panel according to claim 1, characterized in that: The diversion channel has a cooling medium inlet, and the diversion channel is provided with a plurality of diversion holes, and each of the bionic flow channels is connected to the diversion channel through the diversion holes. The confluence channel has a cooling medium outlet, and the confluence channel is provided with a plurality of confluence holes, and each of the bionic flow channels is connected to the confluence channel through the confluence holes.

4. The data center liquid cooling panel according to claim 3, characterized in that: The diverter channel and the converging channel are arranged in parallel and spaced apart, a plurality of the diverter holes are sequentially arranged along the length direction of the diverter channel, and a plurality of the converging holes are sequentially arranged along the length direction of the converging channel.

5. The data center liquid cooling panel according to claim 1, wherein: The data center liquid cooling plate includes a base plate and a cover plate. One surface of the base plate is a flow channel plane. The diversion channel, the confluence channel and multiple bionic flow channels are all opened on the flow channel plane. The cover plate is arranged on the flow channel plane and is sealed and fixedly connected to the base plate.

6. The data center liquid cooling panel according to claim 5, characterized in that: The bottom plate and the cover plate are made of aluminum, copper or a thermally conductive composite material.

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