Server device combining cold plate and immersed liquid cooling

Abstract

The utility model relates to the field of server devices, in particular to a server device combining a cold plate and immersed liquid cooling, which comprises a shell and a sealing plate, an accommodating cavity is formed in the shell, a heat dissipation cold plate is detachably connected in the accommodating cavity, a heat exchange flow channel and an immersion channel which are communicated are arranged in the heat dissipation cold plate, and the heat exchange flow channel is communicated with the immersion channel. The ends of the heat exchange flow channels are communicated and connected through connecting pipelines to form heat exchange channels, the tail ends of the heat exchange flow channels are connected with a liquid inlet and a liquid return opening which are used for circulating flowing, and heat exchange media are guided into the heat exchange channels through the liquid inlet and penetrate through the heat exchange flow channels and the connecting pipelines to be guided out of the liquid return opening. According to the utility model, through heat exchange of the heat dissipation cold plate and immersion type liquid cooling, heat of a heating component is efficiently transferred and dissipated, so that the heat dissipation efficiency of the server is further improved, and the stability of the server is improved.

Description

Technical Field

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

[0002] With the rapid development of information technology, servers, as the core devices for data center processing and storage, play a crucial role in all walks of life. Servers, with their characteristics of high efficiency, stability, and scalability, have become the key infrastructure to support the informatization process of modern society. These application fields have put forward higher and higher requirements for the performance, stability, and energy efficiency ratio of servers. With the continuous growth of the number and scale of data centers, the heat dissipation of data center servers faces severe challenges. How to solve the efficient heat dissipation of data center servers is an urgent problem to be solved at present.

[0003] The heat dissipation of existing servers is divided into air cooling, cold plate heat dissipation, and immersion liquid cooling. Air cooling blows air through the server interior by a fan to take away heat for heat dissipation; cold plate heat dissipation directly contacts heat-generating components such as CPUs and GPUs through a coolant, and uses the high heat conductivity of the liquid for heat dissipation; while immersion cooling is a technology that completely immerses the hardware of the server in the coolant and relies on the flowing coolant to absorb the heat generated by the server.

[0004] However, although the heat dissipation structures of existing server devices have improved the heat dissipation efficiency of servers to a certain extent, there are still defects in actual applications. Under high-intensity computing tasks, core components such as CPUs in existing servers will generate a large amount of heat, forming local hot spots. Existing heat dissipation devices are difficult to eliminate local hot spots, resulting in poor heat dissipation and cooling effects on heat-generating components, affecting the long-term stable operation of the server, and it is not easy to perform uniform and efficient heat dissipation on the server, affecting the heat dissipation efficiency of the server, unable to meet the heat dissipation requirements of data center servers, thus leading to unstable operation and use of the server. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the above defects and provide a server device combining a cold plate and immersion liquid cooling to solve the technical problems in the above background art that the heat dissipation and cooling effects of existing server devices are poor and it is not easy to perform uniform and efficient heat dissipation, thus affecting the heat dissipation efficiency and use of the server device.

[0006] The purpose of the utility model is achieved in the following way:

[0007] A server device combining a cold plate and immersion liquid cooling includes a shell and a closing plate. A accommodating cavity with an opening on one side is formed inside the shell. The closing plate is matched and sealed with the open end of the shell. A heat dissipation cold plate is detachably connected to the accommodating cavity. A plurality of conductive heat exchange channels and immersion channels are arranged inside the heat dissipation cold plate. The ends of the heat exchange channels are conductively connected by connecting pipes to form heat exchange channels, and the ends of the heat exchange channels are connected with a liquid inlet and a liquid return port for circulating flow. The ends of the liquid inlet and the liquid return port extend to the outside of the shell through the closing plate. A heat exchange medium is introduced into the heat exchange channel through the liquid inlet, so that the heat exchange medium passes through the heat exchange channel and the connecting pipe and is discharged from the liquid return port. A liquid injection valve that is conductive with the accommodating cavity is provided on the closing plate. The liquid injection valve fills the accommodating cavity with coolant so that the coolant immerses the heat dissipation cold plate.

[0008] Further in the above description, the inner wall of the accommodating cavity is formed with an installation slot, and the heat dissipation cold plate is provided with a positioning protrusion, so that the heat dissipation cold plate is matched and inserted along the installation slot through the positioning protrusion, thereby the heat dissipation cold plate is detachably installed in the accommodating cavity.

[0009] Specifically, the heat dissipation cold plate is inserted into the mounting slot in the accommodating cavity through the positioning protrusion, so that the heat dissipation cold plate is limitedly installed through the mounting slot, and the installation of the heat dissipation cold plate is convenient. The coolant in the accommodating cavity immerses the heat dissipation cold plate, further improving the cooling heat exchange.

[0010] Furthermore, in the above description, a plurality of protruding heat dissipation fins are formed on the outer surface of the heat dissipation cold plate, and the heat dissipation fins are immersed in contact with the coolant.

[0011] The raised heat dissipation fins are provided to further increase the contact area with the coolant, so that the heat dissipated by the heat-generating components into the coolant can be absorbed, thereby allowing the heat exchange channels on the heat dissipation cold plate to perform heat exchange and cooling.

[0012] Further in the above description, the open end of the shell is formed with a mounting portion connected to the sealing plate, a sealing notch is opened on the mounting portion, the sealing notch is filled with a sealing strip, and the sealing plate is connected to the mounting portion by a sealing screw.

[0013] Specifically, the sealing strip is provided to seal the sealing plate and the mounting portion of the housing, thereby improving the sealing performance of the mounting and reducing leakage of the internal coolant.

[0014] Further in the above description, the sealing plate is provided with a first connecting hole and a second connecting hole for connecting the liquid inlet and the liquid return port respectively, the ends of the liquid inlet and the liquid return port extend to the outside of the sealing plate through the first connecting hole and the second connecting hole, and sealing rings are provided in the first connecting hole and the second connecting hole, and a pressure block for matching the liquid inlet and the liquid return port is provided on the sealing plate.

[0015] The sealing ring is provided to seal the corresponding liquid inlet and liquid return port to enhance the sealing performance of the connection.

[0016] Further in the above description, the shell is provided with an exhaust valve port which is in communication with the accommodating chamber.

[0017] Further in the above description, the heat exchange flow channel and the immersion channel are sequentially spaced apart and distributed on the heat dissipation cold plate, and the immersion channel is in immersed contact with the coolant.

[0018] Specifically, the immersion channel provided is filled with the cooling liquid in the accommodating cavity, thereby further improving the heat conduction efficiency and the cooling heat exchange efficiency, thereby improving the uniformity and reliability of heat dissipation.

[0019] The beneficial effects of the present invention are as follows: an external heat-generating component is mounted on a heat dissipation cold plate, and the heat dissipation cold plate is inserted into the accommodating cavity. Through heat exchange of the heat dissipation cold plate and immersion liquid cooling, the heat of the heat-generating component is efficiently transferred and dissipated. The heat emitted by the heat-generating component can be absorbed and taken away by the heat dissipation cold plate, and the circulating heat exchange medium is introduced from the liquid inlet, so that it passes through the heat exchange channel and absorbs the heat of the heat dissipation cold plate and is discharged from the liquid outlet. The heat-generating component is wrapped by the coolant that immerses the heat dissipation cold plate, so that the heat generated by the heat-generating component can be directly transferred and dissipated into the coolant, and the heat in the coolant is absorbed by the heat dissipation cold plate and discharged through the heat exchange medium, thereby further improving the heat dissipation efficiency of the server, and uniform heat dissipation is achieved through the arrangement of the heat dissipation cold plate and immersion in coolant, thereby improving the heat exchange and cooling efficiency in the accommodating cavity, thereby improving the operating stability and reliability of the server. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a perspective view of this embodiment;

[0021] Figure 2 This is an exploded schematic diagram of the sealing plate in this embodiment;

[0022] Figure 3 This is a schematic structural diagram of the heat dissipation cold plate in this embodiment;

[0023] Figure 4 Schematic diagram of part of the structure of this embodiment;

[0024] Figure 5 for Figure 4 A partial enlarged schematic diagram;

[0025] Figure 6 for Figure 4 A partial enlarged schematic diagram of B in the middle;

[0026] Figure 7 is a cross-sectional view of this embodiment;

[0027] The reference numerals in the figure are respectively: 1 - housing, 2 - sealing plate, 3 - accommodation cavity, 4 - heat dissipation cold plate, 5 - heat exchange flow channel, 6 - immersion channel, 7 - connecting pipe, 8 - liquid inlet, 9 - liquid return port, 10 - liquid injection valve, 11 - installation card slot, 12 - positioning protrusion, 13 - heat dissipation fin, 14 - installation part, 15 - sealing groove opening, 16 - sealing rubber strip, 17 - first connection hole, 18 - second connection hole, 19 - sealing ring, 20 - pressing block. Detailed implementation mode

[0028] The present utility model will be further described in detail below in conjunction with the accompanying drawings and the specific implementation mode.

[0029] In this embodiment, referring to Figures 1-7 , the server device combining a cold plate and immersion liquid cooling implemented specifically includes a housing 1 and a sealing plate 2. An accommodation cavity 3 with one side open is formed inside the housing 1. The sealing plate 2 is paired and hermetically connected to the open end of the housing 1. A heat dissipation cold plate 4 is detachably connected inside the accommodation cavity 3. A conducting heat exchange flow channel 5 and an immersion channel 6 are arranged inside the heat dissipation cold plate 4. The end of the heat exchange flow channel 5 is conductively connected through a connecting pipe 7 to form a heat exchange channel. And the end of the heat exchange flow channel 5 is connected with a liquid inlet 8 and a liquid return port 9 for circulating flow. The ends of the liquid inlet 8 and the liquid return port 9 extend out of the housing 1 through the sealing plate 2. A heat exchange medium is introduced into the heat exchange channel through the liquid inlet 8, and the heat exchange medium passes through the heat exchange flow channel 5 and the connecting pipe 7 and is led out from the liquid return port 9. A liquid injection valve 10 communicating with the accommodation cavity 3 is arranged on the sealing plate 2, and a coolant is filled into the accommodation cavity 3 by the liquid injection valve 10 so that the coolant immerses the heat dissipation cold plate 4.

[0030] In this embodiment, installation card slots 11 are formed on the opposite inner walls of the accommodation cavity 3. Positioning protrusions 12 are arranged on both sides of the heat dissipation cold plate 4, so that the heat dissipation cold plate 4 is inserted in pairs along the installation card slots 11 through the positioning protrusions 12, thereby detachably installing the heat dissipation cold plate 4 inside the accommodation cavity 3. Specifically, the heat dissipation cold plate 4 is inserted into the installation card slots 11 in the accommodation cavity 3 through the positioning protrusions 12, so that the heat dissipation cold plate 4 is limitedly installed through the installation card slots 11, and it is convenient to install the heat dissipation cold plate 4. The coolant in the accommodation cavity 3 immerses the heat dissipation cold plate 4, further improving the cooling heat exchange.

[0031] In this embodiment, raised heat dissipation fins 13 are formed on the outer surface of the heat dissipation cold plate 4, and the heat dissipation fins 13 are in contact with the coolant by immersion. The arranged raised heat dissipation fins 13 further increase the contact area with the coolant, so that the heat emitted from the heat generating components to the coolant can be absorbed, and then heat exchange and cooling are carried out through the heat exchange channel on the heat dissipation cold plate 4.

[0032] In this embodiment, an installation portion 14 for connecting with the sealing plate 2 is formed at the open end of the housing 1. A sealing groove 15 is provided on the installation portion 14, and a sealing rubber strip 16 is filled in the sealing groove 15. The sealing plate 2 is connected to the installation portion 14 through sealing screws. Specifically, the sealing rubber strip 16 is provided to make the sealing plate 2 and the installation portion 14 of the housing 1 be sealed and connected, improving the sealing performance of the installation and reducing the leakage of the internal coolant.

[0033] The sealing plate 2 is provided with a first connection hole 17 and a second connection hole 18 for connecting the liquid inlet 8 and the liquid return port 9 respectively. The ends of the liquid inlet 8 and the liquid return port 9 pass through the first connection hole 17 and the second connection hole 18 and extend to the outside of the sealing plate 2. Sealing rings 19 are arranged in both the first connection hole 17 and the second connection hole 18. A pressing block 20 for mating with the liquid inlet 8 and the liquid return port 9 is arranged on the sealing plate 2. The sealing rings 19 are provided to seal with the corresponding liquid inlet 8 and liquid return port 9, enhancing the sealing performance of the connection.

[0034] In this embodiment, an exhaust valve port communicating with the accommodation cavity 3 is provided on the housing 1. The heat exchange flow channels 5 and the immersion channels 6 are distributed at intervals on the heat dissipation cold plate 4 in turn. The immersion channels 6 are in immersion contact with the coolant. Specifically, the immersion channels 6 filled and arranged are wrapped by the coolant in the accommodation cavity 3, further improving the heat conduction efficiency and the cooling and heat exchange efficiency, thereby improving the uniformity and reliability of heat dissipation.

[0035] In some embodiments, the liquid inlet 8 and the liquid outlet are connected to an external air conditioner outdoor unit or a cooling tower. The heat exchange medium is set as cold zone air and refrigerant liquid according to the air conditioner outdoor unit or the cooling tower. The heat generating component is a heat generating element such as a CPU or a GPU, and the cooling liquid is an insulating and heat conducting coolant.

[0036] Specifically, the server components are fixed on the heat dissipation cold plate 4 and then immersed in the coolant. The heat dissipation cold plate 4 and the coolant simultaneously absorb the heat dissipated by the heat generating device, adopting hybrid refrigeration, and the heat dissipation efficiency is higher. Efficient heat dissipation can reduce the energy consumption of the server data center system, making the PUE of the data center reach an extremely low level.

[0037] The specific working principle in this embodiment is:

[0038] The external heat-generating component is installed on the heat-sinking cold plate 4, so that the heat-sinking cold plate 4 is inserted into the mounting slot 11 in the accommodating cavity 3 through the positioning protrusion 12 and fixed by screws. The sealing plate 2 is connected and installed with the mounting portion 14 of the shell 1 through the sealing screws. The cooling liquid is injected into the accommodating cavity 3 through the liquid injection valve 10, and the liquid inlet 8 and the liquid outlet are connected to the external cooling tower. The heat-sinking cold plate 4 is provided with heat exchange and immersion liquid cooling, so that it can efficiently transfer and dissipate the heat of the heat-generating component. When the heat-generating component dissipates heat, it can be absorbed and taken away by the heat-sinking cold plate 4. The circulating heat exchange medium is introduced from the liquid inlet 8, so that it passes through the heat exchange channel and absorbs the heat of the heat-sinking cold plate 4 and is discharged from the liquid outlet. It undergoes a heat exchange and cooling cycle through the cooling tower and is immersed in the coolant through the immersion channel 6 on the heat-sinking cold plate 4.

[0039] And by immersing the heat dissipation cold plate 4 in the coolant to wrap the heat-generating components, the heat generated by the heat-generating components can be directly transferred and dissipated into the coolant, and the heat in the coolant is absorbed by the heat dissipation fins 13 of the heat dissipation cold plate 4, and is conducted out through the heat exchange medium, thereby further improving the heat dissipation efficiency of the server. The heat dissipation is uniformly dissipated through the heat dissipation cold plate 4 and the immersion in coolant, thereby improving the heat exchange cooling efficiency in the accommodating cavity 3, thereby improving the operating stability and reliability of the server, and achieving more uniform and efficient heat dissipation through the arrangement of the heat dissipation cold plate 4 and the comprehensive wrapping and efficient heat conduction characteristics of the coolant.

[0040] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention is disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the above-disclosed technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention, which do not depart from the content of the technical solution of the present invention, are within the scope of the technical solution of the present invention.

Claims

1. A server device combining a cold plate and immersion liquid cooling, comprising a housing and a sealing plate. An accommodation cavity with an opening on one side is formed inside the housing, and the sealing plate is paired and sealingly connected to the opening end of the housing. It is characterized in that: A heat dissipation cold plate is detachably connected in the accommodation cavity. A plurality of conducting heat exchange flow channels and immersion channels are arranged inside the heat dissipation cold plate. The ends of the heat exchange flow channels are conductively connected through connecting pipes to form a heat exchange channel. The end of the heat exchange flow channel is connected with a liquid inlet and a liquid return port for circulating flow. The ends of the liquid inlet and the liquid return port penetrate through the sealing plate and extend outward from the housing. A heat exchange medium is introduced into the heat exchange channel through the liquid inlet, so that the heat exchange medium passes through the heat exchange flow channel and the connecting pipe and is discharged from the liquid return port. A liquid injection valve communicating with the accommodation cavity is arranged on the sealing plate, and a coolant is filled into the accommodation cavity through the liquid injection valve, so that the coolant immerses the heat dissipation cold plate.

2. The server device combining a cold plate with immersion liquid cooling according to claim 1, wherein: An installation clamping groove is formed on the inner wall of the accommodation cavity, and a positioning protrusion is arranged on the heat dissipation cold plate, so that the heat dissipation cold plate is inserted in a matching manner along the installation clamping groove through the positioning protrusion, thereby detachably installing the heat dissipation cold plate in the accommodation cavity.

3. The server device combining a cold plate and immersion liquid cooling according to claim 2, wherein: A plurality of protruding heat dissipation fins are formed on the outer surface of the heat dissipation cold plate, and the heat dissipation fins are in immersion contact with the coolant.

4. The server device combining a cold plate with immersion liquid cooling according to claim 1, wherein: An installation part for connecting with the sealing plate is formed at the open end of the housing. A sealing groove is formed on the installation part, and a sealing rubber strip is filled in the sealing groove. The sealing plate is connected with the installation part through sealing screws.

5. The server device combining a cold plate and immersion liquid cooling according to claim 1, characterized in that: A first connection hole and a second connection hole for connecting the liquid inlet and the liquid return port respectively are formed on the sealing plate. The ends of the liquid inlet and the liquid return port penetrate through the first connection hole and the second connection hole and extend outward from the sealing plate. Sealing rings are arranged in both the first connection hole and the second connection hole, and a pressing block for matching the liquid inlet and the liquid return port is arranged on the sealing plate.

6. The server device combining a cold plate and immersion liquid cooling according to any one of claims 1-5, characterized in that: An exhaust valve port communicating with the accommodation cavity is formed on the housing.

7. The server device combining a cold plate and immersion liquid cooling according to any one of claims 1-5, characterized in that: The heat exchange flow channels and the immersion channels are arranged at intervals in sequence on the heat dissipation cold plate, and the immersion channels are in immersion contact with the coolant.

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