Immersed liquid cooling unit and data center

Abstract

The invention relates to the technical field of servers, and discloses an immersed liquid cooling unit and a data center, the immersed liquid cooling unit comprises an outer frame structure, an inner container structure, a liquid inlet and outlet pipeline and a server main body; the outer frame structure comprises an outer frame framework and a side plate, a first penetrating opening is formed in the bottom of the outer frame framework, and a second penetrating opening is formed in the side wall of the outer frame framework; the side plate is arranged corresponding to the second through hole and is detachably connected to the side wall of the outer frame; the inner container structure is arranged in the outer frame; a gap is formed between the inner container structure and the outer frame structure; the liquid inlet and outlet pipeline is arranged in a gap between the outer frame structure and the inner container structure and communicated with the inner container structure. The liquid inlet and outlet pipeline is used for being connected with an underground cold source pipeline through the first penetrating opening or connected with an overground cold source pipeline through the second penetrating opening. And the server main body is arranged in the liner structure. According to the invention, flexible configuration according to different data center sites, infrastructure equipment and budget is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of servers, and in particular to an immersion liquid cooling unit and a data center. Background Art

[0002] With the continuous development of information technology, the demand for computing power in data centers is increasing. When the rack power of a data center rises to more than 15kW, traditional cooling methods such as room-level air conditioners and row-to-row air conditioners are unable to meet the growing demand for cooling due to insufficient cooling capacity. Immersion liquid cooling technology, as an efficient and energy-saving cooling form, has become the development direction of new high-computing power data centers with its extreme energy efficiency indicators and high reliability. However, in the face of specific site conditions, budget constraints and different application scenarios of different data centers, the flexibility of server configuration has certain limitations, which not only weakens the adaptability of the server in different environments, but also makes it difficult to meet the diverse needs of data centers. Summary of the invention

[0003] In view of this, the present invention provides an immersion liquid cooling unit and a data center to solve the problem that the server cooling system lacks sufficient flexibility in design, limits the adaptability of the server in different application scenarios, and is difficult to meet diverse needs.

[0004] In the first aspect, the present invention provides an immersion liquid cooling unit, comprising an outer frame structure, an inner tank structure, liquid inlet and outlet pipelines and a server body; the outer frame structure comprises an outer frame frame and side panels, a first through-hole is provided at the bottom of the outer frame frame, and a second through-hole is provided on the side wall of the outer frame frame; the side panels are arranged corresponding to the second through-hole and are detachably connected to the side wall of the outer frame frame; the inner tank structure is arranged in the outer frame frame; a gap is provided between the inner tank structure and the outer frame structure; the liquid inlet and outlet pipelines are arranged in the gap between the outer frame structure and the inner tank structure, and are connected to the inner tank structure; the liquid inlet and outlet pipelines are used to be connected to an underground cold source pipeline through the first through-hole, or to be connected to an above-ground cold source pipeline through the second through-hole; the server body is arranged in the inner tank structure.

[0005] Since the bottom of the outer frame is provided with a first through-hole, the inlet and outlet liquid pipelines can be connected to the underground cold source pipeline through the first through-hole, so that the inlet and outlet liquid pipelines are not exposed during use, so that multiple immersion liquid cooling units can be arranged closely adjacent to each other, saving the occupied space, and are suitable for use in large data centers with complete immersion liquid cooling infrastructure planning, equipped with underground pipelines, pursuing low PUE (an indicator for evaluating the energy efficiency of data centers), low TCO (total cost), requiring uninterrupted operation of servers, and requiring extremely high reliability; since the side wall of the outer frame is provided with a second through-hole, and the side plate is arranged corresponding to the second through-hole and detachably connected to the side wall of the outer frame, the inlet and outlet liquid pipelines are not exposed. When the inlet and outlet liquid pipelines are connected to the ground cold source pipeline, the corresponding side plate can be removed, that is, the inlet and outlet liquid pipelines can be connected to the ground cold source pipeline through the second through-hole, which is suitable for the deployment of medium and small-scale liquid cooling without under-floor piping solutions; and flexible configuration according to different data center sites, infrastructure equipment and budgets is realized.

[0006] In an optional embodiment, two groups of inlet and outlet liquid pipelines are provided, and the two groups of inlet and outlet liquid pipelines are arranged at intervals; and switch valves are provided on the inlet and outlet liquid pipelines.

[0007] By setting up two sets of inlet and outlet liquid pipelines, redundant settings of the inlet and outlet liquid pipelines are achieved. When one set of inlet and outlet liquid pipelines fails, the other set of inlet and outlet liquid pipelines can still operate normally, which enhances the reliability of the server, reduces the operational risk of the data center, and reduces the cost caused by downtime maintenance; and because there are switch valves on the inlet and outlet liquid pipelines, only one set of inlet and outlet liquid pipelines can be opened to connect to the external cold source according to configuration requirements to achieve reasonable allocation and utilization of resources; or both sets of inlet and outlet liquid pipelines can be enabled at the same time to further improve the heat dissipation efficiency of the liquid cooling unit. This diversified configuration method fully meets the specific needs of the immersion liquid cooling unit in different application scenarios and provides a strong guarantee for the stable operation of the data center.

[0008] In an optional embodiment, the inner tank structure further includes a liquid return tank, which is protrudingly arranged on one side of the inner tank structure, and the two sets of liquid inlet and outlet pipelines are arranged on the side where the liquid return tank is located and are located below the liquid return tank.

[0009] By setting up a liquid return tank, the storage of coolant can be supported, ensuring that the liquid cooling cycle will not be affected even when the server body is extracted for maintenance or upgrade, thereby ensuring the continuous and stable operation of the data center; the liquid return tank is protruding on one side of the inner tank structure, and the inlet and outlet liquid pipelines are set below the liquid return tank, which improves the space utilization inside the outer frame structure and optimizes the space layout.

[0010] In an optional embodiment, a liquid outlet is provided at the bottom of the liquid return bin, and the inner tank structure further includes a filter box, which is arranged at the bottom of the liquid return bin, and the liquid outlet is arranged at the position of the filter box and is connected to the filter box.

[0011] By setting up a filter box, particulate matter can be effectively intercepted and prevented from entering the inlet and outlet liquid pipelines from the liquid outlet, which can avoid blockage problems caused by accumulation of particulate matter in the pipeline, thereby ensuring the stability of the pipeline pressure difference and smooth flow.

[0012] In an optional embodiment, the inner tank structure further includes a filter rack, and the filter rack is arranged on the top of the liquid return bin.

[0013] By setting up a filter rack, particulate matter can be effectively intercepted to prevent it from entering the inlet and outlet liquid pipelines from the liquid outlet, and blockage problems caused by accumulation of particulate matter in the pipeline can be avoided, thereby ensuring the stability of the pipeline pressure difference and smooth flow.

[0014] In an optional embodiment, the inner liner structure also includes a bracket assembly, which is arranged inside the inner liner structure and includes a first bracket and a second bracket, and the first bracket and the second bracket are respectively detachably connected to the two inner side walls of the inner liner structure; the two ends of the server body are respectively connected to the first bracket and the second bracket.

[0015] By setting up the bracket assembly, the server body can be firmly installed in the inner tank structure. Since the first bracket and the second bracket can be detachably connected to the inner wall of the inner tank structure, when it is necessary to replace the server body of different specifications, it is only necessary to remove the original first bracket or the second bracket as needed and replace it with a new bracket of the corresponding specification to complete the installation and replacement of the server body of different specifications, reducing the adjustment of the inner tank structure itself when replacing the server body, and improving the convenience and efficiency of operation.

[0016] In an optional embodiment, the liner structure further includes a first filling plate, which is located inside the liner structure, adjacent to the server body, and detachably connected to the inner side wall of the liner structure.

[0017] By providing the first filling plate, the amount of coolant used in the liner structure can be effectively reduced while ensuring that the server body is completely immersed, which not only improves the cooling efficiency but also saves resources; and because the first filling plate is fixed to the inner wall of the liner structure in a detachable connection manner, when a server body of a different specification needs to be replaced, it is only necessary to remove the original first filling plate and replace it with a new first filling plate of the corresponding size according to the specifications of the new server body, thereby reducing the adjustments and modifications made to the liner structure itself during the replacement process.

[0018] In an optional embodiment, the liner structure further includes a second filling plate, which is located inside the liner structure, adjacent to the server body, and detachably connected to the bottom wall of the liner structure.

[0019] By providing a second filling plate, the amount of coolant used in the inner tank structure can be effectively reduced while ensuring that the server body is completely immersed, which not only improves the cooling efficiency but also saves resources; and because the second filling plate is fixed to the bottom wall of the inner tank structure in a detachable connection manner, when a server body of a different specification needs to be replaced, it is only necessary to remove the original second filling plate and replace it with a new second filling plate of the corresponding size according to the specifications of the new server body, thereby reducing the adjustments and modifications made to the inner tank structure itself during the replacement process.

[0020] In an optional embodiment, the liner structure also includes a sealing strip, a connection status indicator light and a limit switch; the sealing strip is located at the top opening of the liner structure and is fixed on the liner structure; the limit switch is located below the sealing strip and is fixed on the inner side wall of the liner structure; the connection status indicator light is arranged below the sealing strip, adjacent to the limit switch, electrically connected to the limit switch, and fixed on the inner side wall of the liner structure; the immersion liquid cooling unit also includes an upper cover assembly, which includes a cover plate and an observation window; one side of the cover plate is hinged to the liner structure, and the other side has a connection position connected to the liner structure, and a separation position separated from the liner structure; and a protrusion is provided on the side of the cover plate facing the liner structure; when the other side of the cover plate is in the connection position, the protrusion abuts against the limit switch, and the limit switch controls the connection status indicator light to be in a first indication state; when the other side of the cover plate is in the separation position, the protrusion is separated from the limit switch, and the limit switch controls the connection status indicator light to be in a second indication state; the observation window is arranged on the cover plate.

[0021] By setting a sealing strip, when the other side of the cover plate is connected to the inner tank structure, by pressing the sealing strip on the surface of the inner tank structure, the cover plate and the inner tank structure can tightly form a closed cavity, preventing the coolant in the inner tank structure from volatilizing, and also preventing external impurities from entering the inner tank structure, thereby ensuring the purity of the coolant and the stable operation of the system; since a limit switch is set below the sealing strip, only when the cover plate and the inner tank structure are completely sealed and connected, the protrusion on the cover plate will contact the limit switch, ensuring that the limit switch will be activated only when the cover plate is correctly closed; since the limit switch is electrically connected to the connection status indicator light, therefore, by observing the indication state of the connection status indicator light, it is possible to intuitively determine whether the cover plate has been closed in place; since an observation window is also set on the cover plate, it is not only convenient to observe the indication state of the connection status indicator light at any time to ensure the normal operation of the system, but also can meet the real-time observation needs for the operation of the server body and the real-time monitoring needs for the state of the coolant in the inner tank structure.

[0022] In an optional embodiment, the upper cover assembly also includes a reflux groove, which is arranged on the cover plate and is located on the side where the cover plate and the inner liner structure are hinged, and the distance between the groove wall on the side opposite to the cover plate and the cover plate gradually decreases towards the side where the cover plate and the inner liner structure are hinged.

[0023] Since the reflux groove is arranged on the side where the cover plate and the inner liner structure are hinged, when the cover plate is opened, the liquid condensed thereon can naturally flow back into the reflux groove; since the distance between the groove wall on the side opposite to the cover plate and the inner liner structure gradually decreases toward the side where the cover plate and the inner liner structure are hinged, it is ensured that when the cover plate is closed again, the coolant accumulated in the reflux groove can smoothly flow back into the inner liner structure; the outflow of coolant is effectively avoided, thereby reducing the waste of coolant and preventing potential pollution of the surrounding environment by coolant, which not only improves the efficiency of resource utilization, but also protects the cleanliness and safety of the environment.

[0024] In a second aspect, the present invention further provides a data center, comprising a liquid cooling distribution unit and the above-mentioned immersion liquid cooling unit, wherein two sides of the immersion liquid cooling unit are respectively connected to two groups of liquid cooling distribution units.

[0025] By connecting two independent groups of liquid cooling distribution units on both sides of the immersion liquid cooling unit, redundant configuration of the liquid cooling distribution unit is achieved. When one group of liquid cooling distribution units needs to be overhauled or maintained, it can be switched to another group of liquid cooling distribution units to continue to provide cooling services for the immersion liquid cooling unit, thereby ensuring the continuous operation of the server body. This not only improves the reliability and stability of the system, but also provides greater operational flexibility and convenience for overhaul and maintenance.

[0026] In an optional embodiment, the liquid cooling distribution unit includes a shell assembly, a liquid storage box, a heat exchanger and at least two groups of submersible pumps; the liquid storage box is arranged in the shell assembly; and the bottom of the liquid storage box is connected to the liquid outlet pipeline of the immersion liquid cooling unit through an inlet pipe; the heat exchanger is arranged in the shell assembly, located below the liquid storage box, and is used to be connected to an external cold source; and the heat exchanger is connected to the liquid storage box through a secondary side water inlet pipeline, and is connected to the liquid inlet pipeline of the immersion liquid cooling unit through a secondary side water outlet pipeline; at least two groups of submersible pumps are arranged in the liquid storage box.

[0027] Since the heat exchanger is installed below the liquid storage box, the design volume of the liquid cooling distribution unit is mainly limited by the size of the heat exchanger, which effectively reduces the overall volume of the liquid cooling distribution unit and makes it more compact; the setting of at least two groups of submersible pumps ensures that even if one group of submersible pumps fails, the other group of submersible pumps can immediately take over the work and continue to provide stable liquid circulation for the system, thereby greatly improving the reliability and stability of the entire liquid cooling system and enhancing the system's fault tolerance and continuous operation capabilities.

[0028] In an optional embodiment, one group of liquid cooling distribution units is connected to two groups of immersion liquid cooling units, and the two groups of immersion liquid cooling units are respectively arranged on both sides of the liquid cooling distribution units; the inlet pipe includes an inlet main pipe, a first inlet branch pipe and a second inlet branch pipe; the inlet main pipe is connected to the liquid storage box; the first inlet branch pipe and the second inlet branch pipe are respectively arranged on both sides of the inlet main pipe, and are respectively connected to the liquid outlet pipes of the two adjacent groups of immersion liquid cooling units; the secondary side water outlet pipe includes a water outlet main pipe, a first water outlet branch pipe and a second water outlet branch pipe; the water outlet main pipe is connected to the heat exchanger; the first water outlet branch pipe and the second water outlet branch pipe are respectively arranged on both sides of the water outlet main pipe, and are respectively connected to the liquid inlet pipes of the two adjacent groups of immersion liquid cooling units.

[0029] By setting the first inlet branch pipe, the second inlet branch pipe, the first water outlet branch pipe and the second water outlet branch pipe, the function of connecting one group of liquid cooling distribution units to two groups of immersion liquid cooling units at the same time is realized; not only the flexibility of the liquid cooling system is improved, but also it is ensured that the coolant can flow efficiently and orderly between the liquid cooling distribution unit and the immersion liquid cooling unit, thereby meeting the cooling needs in complex application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related technologies, the drawings required for use in the specific embodiments or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1A schematic diagram of a deployment of an immersion liquid cooling unit and a liquid cooling distribution unit according to an embodiment of the present invention;

[0032] Figure 2 Another deployment schematic diagram of the immersion liquid cooling unit and the liquid cooling distribution unit according to an embodiment of the present invention;

[0033] Figure 3 It is another deployment schematic diagram of the immersion liquid cooling unit and the liquid cooling distribution unit according to an embodiment of the present invention;

[0034] Figure 4 A schematic diagram of the deployment of the immersion liquid cooling unit and the underground cooling source pipeline connection according to an embodiment of the present invention;

[0035] Figure 5 A schematic structural diagram of an inner tank structure according to an embodiment of the present invention;

[0036] Figure 6 A schematic diagram of the structure of the outer frame structure of an embodiment of the present invention;

[0037] Figure 7 A schematic diagram of the structure of an outer frame of an embodiment of the present invention;

[0038] Figure 8 A perspective view of an inner container structure according to an embodiment of the present invention;

[0039] Fig. 9 A schematic diagram of the internal structure of the liner structure according to an embodiment of the present invention;

[0040] Fig.10 A schematic structural diagram of the interior of the inner liner structure of an embodiment of the present invention from another perspective;

[0041] Fig.11 A schematic structural diagram of the interior of the inner liner structure of an embodiment of the present invention from another perspective;

[0042] Fig.12 It is a structural schematic diagram of an upper cover assembly according to an embodiment of the present invention;

[0043] Fig.13 It is a schematic diagram of the overall structure of an immersion liquid cooling unit according to an embodiment of the present invention;

[0044] Fig.14 It is a structural schematic diagram of the connection between a liquid cooling distribution unit and two groups of immersion liquid cooling units according to an embodiment of the present invention;

[0045] Fig.15 It is a schematic diagram of the overall structure of a liquid cooling distribution unit according to an embodiment of the present invention;

[0046] Fig.16 A schematic diagram of the internal structure of a liquid cooling distribution unit according to an embodiment of the present invention;

[0047] Fig.17 It is a schematic diagram of the installation structure of a submersible pump according to an embodiment of the present invention;

[0048] Fig.18 It is a structural schematic diagram of the connection between the liquid storage box and the heat exchanger according to an embodiment of the present invention.

[0049] Description of reference numerals:

[0050] 1. Outer frame structure; 101. Outer frame; 102. Side panel; 103. Roller support; 104. Fixing frame; 105. Fixing plate; 106. Cable management plate; 107. Power distribution unit; 108. Network port adapter; 2. Inner tank structure; 201. Liquid return tank; 202. Filter box; 203. Filter rack; 204. Bracket assembly; 2041. First bracket; 2042. Second bracket; 205. First filling plate; 206. 2. Filling plate; 207. Sealing strip; 208. Connection status indicator; 209. Limit switch; 210. Liquid distribution main pipe; 211. Flow equalizing pipe; 212. Metal hose; 213. Exhaust valve; 214. Drain valve; 215. Optical fiber aviation plug; 216. Electrical aviation plug; 217. Desiccant box; 218. First liquid level scale; 219. Second liquid level scale; 220. Liquid level sensor; 3. Liquid inlet and outlet pipelines; 301. Liquid inlet pipeline; 30 2. Liquid outlet pipeline; 4. Server body; 5. Upper cover assembly; 501. Cover plate; 502. Observation window; 503. Reflux groove; 504. Air pressure support rod; 505. Handle; 506. Locking buckle; 6. Liquid cooling distribution unit; 6011. Shell frame; 6012. First mounting plate; 6013. Second mounting plate; 6014. Fixing box; 6015. First mounting frame; 6016. Second mounting frame; 6017. Third mounting frame; 6018, display screen; 6019, electric control box; 602, liquid storage box; 603, inlet pipe; 6031, inlet main pipe; 6032, first inlet branch pipe; 6033, second inlet branch pipe; 604, heat exchanger; 605, secondary side water inlet pipeline; 606, secondary side water outlet pipeline; 6061, outlet main pipe; 6062, first outlet branch pipe; 6063, second outlet branch pipe; 607, submersible pump; 608, primary side circulation pipeline. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0052] Combine the following Figures 1 to 18 , describing an embodiment of the present invention.

[0053] According to an embodiment of the present invention, on the one hand, an immersion liquid cooling unit is provided, including an outer frame structure 1, an inner tank structure 2, an inlet and outlet liquid pipeline 3 and a server body 4; the outer frame structure 1 includes an outer frame frame 101 and a side panel 102, the bottom of the outer frame frame 101 is provided with a first through-hole, and the side wall of the outer frame frame 101 is provided with a second through-hole; the side panel 102 is arranged corresponding to the second through-hole, and is detachably connected to the side wall of the outer frame frame 101; the inner tank structure 2 is arranged in the outer frame frame 101; a gap is provided between the inner tank structure 2 and the outer frame structure 1; the inlet and outlet liquid pipeline 3 is arranged in the gap between the outer frame structure 1 and the inner tank structure 2, and is connected to the inner tank structure 2; the inlet and outlet liquid pipeline 3 is used to connect to the underground cold source pipeline through the first through-hole, or to connect to the ground cold source pipeline through the second through-hole; the server body 4 is arranged in the inner tank structure 2.

[0054] Since the bottom of the outer frame 101 is provided with a first through hole, the inlet and outlet liquid pipelines 3 can be connected to the underground cold source pipeline through the first through hole, so that the inlet and outlet liquid pipelines 3 are not exposed during use, so that multiple immersion liquid cooling units can be arranged closely adjacent to each other, saving occupied space. It is suitable for use in large data centers with complete immersion liquid cooling infrastructure planning, equipped with underground pipelines, pursuing low PUE (an indicator for evaluating the energy efficiency of data centers), low TCO (total cost), requiring uninterrupted operation of servers, and requiring extremely high reliability; Since a second through-hole is provided on the side wall of the outer frame 101, and the side panel 102 is arranged corresponding to the second through-hole and is detachably connected to the side wall of the outer frame 101, the inlet and outlet liquid pipelines 3 are not exposed. When the inlet and outlet liquid pipelines 3 are connected to the ground cold source pipeline, the corresponding side panel 102 can be removed, that is, the inlet and outlet liquid pipelines 3 can be connected to the ground cold source pipeline through the second through-hole, which is suitable for medium and small-scale liquid cooling deployment without underfloor piping solutions; and flexible configuration according to different data center sites, infrastructure equipment and budgets is achieved.

[0055] In a specific implementation, four side panels 102 are provided, and the four side panels 102 are respectively connected to the four side walls of the outer frame 101 through quick-release buckles or quick-release screws; four roller feet 103 are provided at the bottom of the outer frame 101; the outer frame 101 is provided with structural parts such as a fixing frame 104, a fixing plate 105 and a cable management plate 106, and the fixing frame 104 is used to fix the power distribution unit 107; the fixing plate 105 is used to fix the network port adapter frame 108.

[0056] Specifically, the inner tank structure 2 can be assembled into the outer frame 101 assembly as an independent integral structure.

[0057] In one embodiment, two groups of liquid inlet and outlet pipelines 3 are provided, and the two groups of liquid inlet and outlet pipelines 3 are arranged at intervals; and switch valves are provided on the liquid inlet and outlet pipelines 3.

[0058] By setting up two groups of inlet and outlet liquid pipelines 3, redundant settings of the inlet and outlet liquid pipelines 3 are achieved. When one group of inlet and outlet liquid pipelines 3 fails, the other group of inlet and outlet liquid pipelines 3 can still operate normally, which enhances the reliability of the server, reduces the operational risk of the data center, and reduces the cost caused by downtime maintenance; and because the inlet and outlet liquid pipelines 3 are provided with switch valves, only one group of inlet and outlet liquid pipelines 3 can be opened to connect to the external cold source according to configuration requirements to achieve reasonable allocation and utilization of resources; or two groups of inlet and outlet liquid pipelines 3 can be enabled at the same time to further improve the heat dissipation efficiency of the liquid cooling unit. This diversified configuration method fully meets the specific needs of the immersion liquid cooling unit in different application scenarios and provides a strong guarantee for the stable operation of the data center.

[0059] In a specific implementation, the inlet and outlet liquid pipeline 3 includes an inlet liquid pipeline 301 and an outlet liquid pipeline 302 . The inlet liquid pipeline 301 is provided with a water inlet ball valve, and the outlet liquid pipeline 302 is provided with a water return ball valve.

[0060] In one embodiment, the inner tank structure 2 further includes a liquid return tank 201 , which is protrudingly arranged on one side of the inner tank structure 2 , and the two sets of liquid inlet and outlet pipes 3 are both arranged on the side where the liquid return tank 201 is located and are located below the liquid return tank 201 .

[0061] By setting up the liquid return tank 201, the storage of the cooling liquid can be supported, ensuring that the liquid cooling cycle will not be affected even when the server body 4 is extracted for maintenance or upgrading, thereby ensuring the continuous and stable operation of the data center; the liquid return tank 201 is protrudingly set on one side of the inner tank structure 2, and the inlet and outlet liquid pipelines 3 are set below the liquid return tank 201, which improves the space utilization inside the outer frame structure 1 and optimizes the space layout.

[0062] In one embodiment, a liquid outlet is provided at the bottom of the liquid return tank 201, and the inner tank structure 2 also includes a filter box 202, which is arranged at the bottom of the liquid return tank 201, and the liquid outlet is arranged at the position where the filter box 202 is located and is connected to the filter box 202.

[0063] By setting up the filter box 202, particulate matter can be effectively intercepted to prevent it from entering the inlet and outlet liquid pipeline 3 from the liquid outlet, and the blockage problem caused by the accumulation of particulate matter in the pipeline can be avoided, thereby ensuring the stability of the pipeline pressure difference and the smoothness of the flow.

[0064] In one embodiment, the inner tank structure 2 further includes a filter rack 203 , and the filter rack 203 is disposed on the top of the liquid return tank 201 .

[0065] By setting up the filter frame 203, particulate matter can be effectively intercepted to prevent it from entering the inlet and outlet liquid pipeline 3 from the liquid outlet, and the blockage problem caused by the accumulation of particulate matter in the pipeline can be avoided, thereby ensuring the stability of the pipeline pressure difference and the smoothness of the flow.

[0066] In a specific embodiment, the filter frame 203 is connected to the liquid return tank 201 through a quick-release structure and can be replaced regularly.

[0067] Specifically, the filter box 202 and the filter frame 203 can filter particles larger than 0.5 mm.

[0068] In one embodiment, the inner liner structure 2 also includes a bracket assembly 204, which is arranged inside the inner liner structure 2, and includes a first bracket 2041 and a second bracket 2042, and the first bracket 2041 and the second bracket 2042 are respectively detachably connected to the two inner walls of the inner liner structure 2; the two ends of the server body 4 are respectively connected to the first bracket 2041 and the second bracket 2042.

[0069] By setting up the bracket assembly 204, the server body 4 can be firmly installed in the inner tank structure 2. Since the first bracket 2041 and the second bracket 2042 can be detachably connected to the inner wall of the inner tank structure 2, when it is necessary to replace the server body 4 of different specifications, it is only necessary to remove the original first bracket 2041 or the second bracket 2042 as needed and replace it with a new bracket of the corresponding specification to complete the installation and replacement of the server body 4 of different specifications, thereby reducing the adjustment of the inner tank structure 2 itself when replacing the server body 4, and improving the convenience and efficiency of operation.

[0070] In one embodiment, the inner liner structure 2 further includes a first filling plate 205 , which is located inside the inner liner structure 2 , adjacent to the server body 4 , and detachably connected to the inner side wall of the inner liner structure 2 .

[0071] By setting the first filling plate 205, the amount of coolant used in the inner tank structure 2 can be effectively reduced while ensuring that the server body 4 is completely immersed, which not only improves the cooling efficiency but also achieves resource conservation; and because the first filling plate 205 is fixed to the inner wall of the inner tank structure 2 in a detachable connection manner, when it is necessary to replace the server body 4 of different specifications, it is only necessary to remove the original first filling plate 205 and replace it with a new first filling plate 205 of the corresponding size according to the specifications of the new server body 4, thereby reducing the adjustments and modifications made to the inner tank structure 2 itself during the replacement process.

[0072] In one embodiment, the inner liner structure 2 further includes a second filling plate 206 , which is located inside the inner liner structure 2 , adjacent to the server body 4 , and detachably connected to the bottom wall of the inner liner structure 2 .

[0073] By providing a second filling plate 206, the amount of coolant used in the inner tank structure 2 can be effectively reduced while ensuring that the server body 4 is completely immersed, which not only improves the cooling efficiency but also achieves resource conservation; and since the second filling plate 206 is fixed to the bottom wall of the inner tank structure 2 in a detachable connection manner, when a server body 4 of a different specification needs to be replaced, it is only necessary to remove the original second filling plate 206 and replace it with a new second filling plate 206 of the corresponding size according to the specifications of the new server body 4, thereby reducing the adjustments and modifications made to the inner tank structure 2 itself during the replacement process.

[0074] In a specific embodiment, the inner tank structure 2 includes a liquid distribution main pipe 210 and a plurality of groups of equalizing flow pipes 211; the liquid distribution main pipe 210 is fixed on the inner wall of the inner tank structure 2; the two ports of the liquid distribution main pipe 210 are both located at the top of the inner tank structure 2, and are respectively connected to the two liquid inlet pipes 301; the port of the liquid distribution main pipe 210 is arranged on the side where the liquid return bin 201 is located, and is located above the liquid return bin 201; a through hole is provided at the bottom of the liquid return bin 201, one end of the liquid inlet pipe 301 is located below the liquid return bin 201, and the other end passes through the through hole and is connected to the port of the liquid distribution main pipe 210; the tube body of the liquid distribution main pipe 210 extends from the top of the inner tank structure 2 to the bottom of the inner tank structure 2; a plurality of groups of equalizing flow pipes 211 are arranged at intervals in sequence at the bottom of the inner tank structure 2, are connected to the liquid distribution main pipe 210, and a plurality of liquid discharge ports are provided on the equalizing flow pipe 211.

[0075] Specifically, the liquid inlet pipeline 301 is connected to the liquid distribution main pipe 210 through a metal hose 212 .

[0076] In a specific embodiment, the liquid distribution main pipe 210 includes two first branch pipes, two second branch pipes and two third branch pipes. The two first branch pipes are located at the top of the inner tank structure 2 and are respectively arranged on the two inner side walls of the inner tank structure 2 along the first direction; one end of the first branch pipe is connected to the corresponding liquid inlet pipeline 301, and the other end extends to the middle position of the inner side wall along the second direction; the two second branch pipes are respectively arranged on the two inner side walls of the inner tank structure 2 along the first direction; one end of the second branch pipe is connected to the corresponding first branch pipe, and the other end extends to the bottom of the inner tank structure 2 along the third direction; the third branch pipe is arranged at the bottom of the inner tank structure 2, and its two ends are respectively connected to the two second branch pipes; a plurality of groups of flow equalizing pipes 211 are arranged in sequence along the first direction, and flow equalizing pipes 211 are provided on both sides of the third branch pipe along the second direction.

[0077] Specifically, two first filling plates 205 are respectively provided on both sides of the second branch pipe along the second direction; and two second filling plates 206 are respectively provided on both sides of the flow equalizing pipe 211 along the first direction.

[0078] In a specific embodiment, an exhaust valve 213 is provided at the top of the first branch pipe to facilitate exhausting the residual gas in the liquid distribution main pipe 210 .

[0079] In a specific embodiment, a drain valve 214 is provided at the bottom of the inner liner structure 2 , which can drain all the coolant in the inner liner structure 2 and also replenish the coolant for the inner liner structure 2 .

[0080] In one embodiment, the liner structure 2 further includes a sealing strip 207, a connection status indicator light 208 and a limit switch 209; the sealing strip 207 is located at the top opening of the liner structure 2 and is fixed to the liner structure 2; the limit switch 209 is located below the sealing strip 207 and is fixed to the inner side wall of the liner structure 2; the connection status indicator light 208 is arranged below the sealing strip 207, adjacent to the limit switch 209, and is electrically connected to the limit switch 209 and is fixed to the inner side wall of the liner structure 2; the immersion liquid cooling unit further includes an upper cover assembly 5, the upper cover assembly 5 includes a cover plate 501 and an observation window 502 ; One side of the cover plate 501 is hinged to the inner liner structure 2, and the other side has a connection position connected to the inner liner structure 2, and a separation position separated from the inner liner structure 2; and a protrusion is provided on the side of the cover plate 501 facing the inner liner structure 2; when the other side of the cover plate 501 is in the connection position, the protrusion abuts against the limit switch 209, and the limit switch 209 controls the connection status indicator light 208 to be in the first indication state; when the other side of the cover plate 501 is in the separation position, the protrusion is separated from the limit switch 209, and the limit switch 209 controls the connection status indicator light 208 to be in the second indication state; the observation window 502 is set on the cover plate 501.

[0081] By setting the sealing strip 207, when the other side of the cover plate 501 is connected to the inner liner structure 2, by pressing the sealing strip 207 on the surface of the inner liner structure 2, the cover plate 501 and the inner liner structure 2 can tightly form a closed cavity, preventing the coolant in the inner liner structure 2 from volatilizing, and also preventing foreign impurities from entering the inner liner structure 2, thereby ensuring the purity of the coolant and the stable operation of the system; because a limit switch 209 is set below the sealing strip 207, only when the cover plate 501 is completely sealed and connected to the inner liner structure 2, the protrusion on the cover plate 501 will contact the limit switch 209, ensuring that only The limit switch 209 will only be activated when the cover 501 is correctly closed; since the limit switch 209 is electrically connected to the connection status indicator light 208, by observing the indication status of the connection status indicator light 208, it is possible to intuitively determine whether the cover 501 is closed in place; since an observation window 502 is also provided on the cover 501, it is not only convenient to observe the indication status of the connection status indicator light 208 at any time to ensure the normal operation of the system, but also can meet the real-time observation needs for the operation of the server body 4 and the real-time monitoring needs for the status of the coolant in the liner structure 2.

[0082] In a specific implementation, the observation window 502 may be a transparent glass window.

[0083] In a specific embodiment, two pneumatic support rods 504 are provided on the cover plate 501, and the two pneumatic support rods 504 are relatively arranged on both sides of the cover plate 501, and are both arranged adjacent to one side where the cover plate 501 is hinged to the inner liner structure 2; the two ends of the pneumatic support rod 504 are respectively connected to the cover plate 501 and the inner liner assembly. By setting the pneumatic support rod 504, mechanical assistance can be provided, which is convenient for the operator to open and close the cover plate 501.

[0084] In a specific embodiment, a handle 505 is further provided on the cover plate 501 . The handle 505 is arranged away from the side where the cover plate 501 is hinged with the inner liner structure 2 , so as to facilitate the operator to open and close the cover plate 501 .

[0085] In a specific embodiment, one side of the cover plate 501 is connected to the inner container structure 2 via a hinge, and the other side is connected to the outer side wall of the outer frame structure 1 via a locking buckle 506 .

[0086] In a specific embodiment, when the cover 501 is closed, the protrusion presses the limit switch 209, and the connection status indicator 208 is blue-green. When the cover 501 is opened, the protrusion and the limit switch 209 are in a separated state, and the connection status indicator 208 is white.

[0087] Specifically, the sealing strip 207 is detachably arranged on the inner tank structure 2, and when the cover plate 501 is opened, the sealing strip 207 can be maintained and replaced.

[0088] In a specific embodiment, the inner wall of the inner liner structure 2 is equipped with an optical fiber aviation plug 215 and an electrical aviation plug 216 to support on-site access of optical fibers and cables.

[0089] In a specific embodiment, the inner liner structure 2 includes a liquid phase area and a gas phase area which are arranged in sequence. The gas phase area is arranged on a side close to the opening of the inner liner structure 2, and the server body 4 is arranged in the liquid phase area; the connection status indicator light 208 and the limit switch 209 are both arranged in the gas phase area, and a desiccant box 217 is arranged in the gas phase area; by setting the desiccant box 217, moisture or excess water that may enter the inner liner structure 2 is absorbed and removed, so as to ensure that during the use of the coolant, the coolant does not contain water exceeding the saturation point, thereby maintaining the coolant in a dry state and avoiding the adverse effects of water on the cooling effect and system stability.

[0090] In a specific embodiment, a first liquid level scale 218 is provided in the inner liner structure 2, and a second liquid level scale 219 is provided in the return liquid tank 201. The operator can directly observe the liquid level height of the coolant in the inner liner structure 2 and the liquid level height in the return liquid tank 201 through the observation window 502 to determine whether the coolant needs to be replenished.

[0091] In a specific embodiment, a liquid level sensor 220 is also provided in the inner liner structure 2. The liquid level sensor 220 is communicatively connected to the liquid cooling distribution unit 6 or the host computer. The control system can accurately control the height of the coolant in the inner liner structure 2 according to the liquid level data of the liquid level sensor 220.

[0092] In one embodiment, the upper cover assembly 5 also includes a reflux groove 503, which is arranged on the cover plate 501 and is located on the side where the cover plate 501 and the inner liner structure 2 are hinged, and the distance between the groove wall on the side opposite to the cover plate 501 and the cover plate 501 gradually decreases towards the side where the cover plate 501 and the inner liner structure 2 are hinged.

[0093] Since the reflux groove 503 is arranged on the side where the cover plate 501 and the inner liner structure 2 are hinged, when the cover plate 501 is opened, the liquid condensed thereon can naturally flow back into the reflux groove 503; since the distance between the groove wall on the side opposite to the cover plate 501 and the cover plate 501 gradually decreases toward the side where the cover plate 501 and the inner liner structure 2 are hinged, it is ensured that when the cover plate 501 is closed again, the coolant accumulated in the reflux groove 503 can smoothly flow back into the inner liner structure 2; the outflow of the coolant is effectively avoided, thereby reducing the waste of the coolant and preventing the potential pollution of the surrounding environment by the coolant, which not only improves the efficiency of resource utilization, but also protects the cleanliness and safety of the environment.

[0094] According to an embodiment of the present invention, on the other hand, a data center is provided, including a liquid cooling distribution unit 6 and the above-mentioned immersion liquid cooling unit, and two sides of the immersion liquid cooling unit are respectively connected to two groups of liquid cooling distribution units 6.

[0095] By connecting two independent groups of liquid cooling distribution units 6 on both sides of the immersion liquid cooling unit, a redundant configuration of the liquid cooling distribution unit 6 is achieved. When one group of liquid cooling distribution units 6 needs to be overhauled or maintained, it is possible to switch to another group of liquid cooling distribution units 6 to continue to provide cooling services for the immersion liquid cooling unit, thereby ensuring that the continuous operation of the server body 4 is not affected; this not only improves the reliability and stability of the system, but also provides greater operational flexibility and convenience for overhaul and maintenance.

[0096] In one embodiment, the liquid cooling distribution unit 6 includes a shell assembly, a liquid storage box 602, a heat exchanger 604 and at least two groups of submersible pumps 607; the liquid storage box 602 is arranged in the shell assembly; and the bottom of the liquid storage box 602 is connected to the liquid outlet pipeline 302 of the immersion liquid cooling unit through the inlet pipe 603; the heat exchanger 604 is arranged in the shell assembly, located below the liquid storage box 602, and is used to connect to an external cold source; and the heat exchanger 604 is connected to the liquid storage box 602 through the secondary side water inlet pipeline 605, and is connected to the liquid inlet pipeline 301 of the immersion liquid cooling unit through the secondary side water outlet pipeline 606; at least two groups of submersible pumps 607 are arranged in the liquid storage box 602.

[0097] Since the heat exchanger 604 is installed below the liquid storage box 602, the design volume of the liquid cooling distribution unit 6 is mainly limited by the size of the heat exchanger 604, which effectively reduces the overall volume of the liquid cooling distribution unit 6 and makes it more compact; the provision of at least two groups of submersible pumps 607 ensures that even when one group of submersible pumps 607 fails, the other group of submersible pumps 607 can immediately take over the work and continue to provide stable liquid circulation for the system, thereby greatly improving the reliability and stability of the entire liquid cooling system and enhancing the system's fault tolerance and continuous operation capabilities.

[0098] In one embodiment, a group of liquid cooling distribution units 6 is connected to two groups of immersion liquid cooling units, and the two groups of immersion liquid cooling units are respectively arranged on both sides of the liquid cooling distribution unit 6; the inlet pipe 603 includes an inlet main pipe 6031, a first inlet branch pipe 6032 and a second inlet branch pipe 6033; the inlet main pipe 6031 is connected to the liquid storage box 602; the first inlet branch pipe 6032 and the second inlet branch pipe 6033 are respectively arranged on both sides of the inlet main pipe 6031, and are respectively connected to the liquid outlet pipelines 302 of the two adjacent groups of immersion liquid cooling units; the secondary side water outlet pipeline 606 includes a water outlet main pipe 6061, a first water outlet branch pipe 6062 and a second water outlet branch pipe 6063; the water outlet main pipe 6061 is connected to the heat exchanger 604; the first water outlet branch pipe 6062 and the second water outlet branch pipe 6063 are respectively arranged on both sides of the water outlet main pipe 6061, and are respectively connected to the liquid inlet pipelines 301 of the two adjacent groups of immersion liquid cooling units.

[0099] By setting the first inlet branch pipe 6032, the second inlet branch pipe 6033, the first water outlet branch pipe 6062 and the second water outlet branch pipe 6063, the function of one group of liquid cooling distribution units 6 being able to be connected to two groups of immersion liquid cooling units at the same time is realized; not only the flexibility of the liquid cooling system is improved, but also it is ensured that the coolant can flow efficiently and orderly between the liquid cooling distribution unit 6 and the immersion liquid cooling unit, thereby meeting the cooling needs in complex application scenarios.

[0100] Preferably, a temperature sensor is provided on the liquid outlet pipeline 302, and the temperature sensor is communicatively connected to the liquid cooling distribution unit 6 corresponding to the liquid inlet and outlet pipelines 3. When the temperature sensor detects that the temperature of the internal coolant on the corresponding liquid outlet pipeline 302 is lower than a preset value, the power of the liquid cooling distribution unit 6 connected to the liquid outlet pipeline 302 can be reduced; when the temperature sensor detects that the temperature of the internal coolant on the corresponding liquid outlet pipeline 302 is higher than a preset value, the power of the liquid cooling distribution unit 6 connected to the liquid outlet pipeline 302 can be increased; automatic and flexible adjustment of the power of the liquid cooling distribution unit 6 is achieved, which not only ensures the efficient operation of the liquid cooling system, but also achieves the optimal utilization of energy, avoids unnecessary energy consumption, can accurately respond to the actual cooling needs of the server motherboard, and effectively ensures the stable operation of the immersion liquid cooling unit.

[0101] In one implementation of this embodiment, Figure 1 As shown, the data center is provided with a group of immersion liquid cooling units and two groups of liquid cooling distribution units 6 , and the two sides of a group of immersion liquid cooling units are respectively connected to the two groups of liquid cooling distribution units 6 to form 1+1 redundancy of the liquid cooling distribution units 6 .

[0102] In another implementation of this embodiment, Figure 2As shown, the data center is provided with multiple groups of immersion liquid cooling units and multiple groups of liquid cooling distribution units 6, a group of immersion liquid cooling units is provided between two adjacent groups of liquid cooling distribution units 6; the liquid cooling distribution unit 6 located between the two groups of immersion liquid cooling units is connected to both adjacent groups of immersion liquid cooling units; the liquid cooling distribution unit 6 located at the end is connected to a group of adjacent immersion liquid cooling units, forming N+1 redundancy of the liquid cooling distribution unit 6. The inlet pipe 603 of the liquid-cooling distribution unit 6 between two adjacent groups of immersion liquid cooling units includes an inlet main pipe 6031, a first inlet branch pipe 6032 and a second inlet branch pipe 6033; the first inlet branch pipe 6032 and the second inlet branch pipe 6033 are respectively connected to the liquid outlet pipelines 302 of the two adjacent groups of immersion liquid cooling units; the secondary side water outlet pipeline 606 includes a water outlet main pipe 6061, a first water outlet branch pipe 6062 and a second water outlet branch pipe 6063; the first water outlet branch pipe 6062 and the second water outlet branch pipe 6063 are respectively connected to the liquid inlet pipelines 301 of the two adjacent groups of immersion liquid cooling units; the inlet pipe 603 of the liquid-cooling distribution unit 6 located at the end is connected to the liquid outlet pipeline 302 of the adjacent immersion liquid cooling unit, and the secondary side water outlet pipeline 606 is connected to the liquid inlet pipeline 301 of the adjacent immersion liquid cooling unit.

[0103] In another implementation of this embodiment, Figure 3 As shown, the data center is provided with multiple groups of immersion liquid cooling units and multiple groups of liquid cooling distribution units 6, and the two sides of a group of immersion liquid cooling units are respectively connected to two groups of liquid cooling distribution units 6; and each group of liquid cooling distribution units 6 is connected to a group of immersion liquid cooling units; the inlet pipe 603 of the liquid cooling distribution unit 6 is connected to the liquid outlet pipeline 302 of the adjacent immersion liquid cooling unit, and the secondary side water outlet pipeline 606 is connected to the liquid inlet pipeline 301 of the adjacent immersion liquid cooling unit, forming N+N redundancy of the liquid cooling distribution unit 6.

[0104] In another implementation of this embodiment, Figure 4 As shown, the data center is provided with an underground pipeline network, and multiple groups of immersion liquid cooling units are provided. The multiple groups of immersion liquid cooling units are all connected to the underground cold source pipeline through the first penetration port; the multiple groups of immersion liquid cooling units are arranged in a cluster.

[0105] In a specific embodiment, the liquid-cooling distribution unit 6 is arranged on the side of the immersion liquid cooling unit along the first direction; the shell assembly includes a shell frame 6011, two first mounting plates 6012 and a second mounting plate 6013; the heat exchanger 604 is connected to the external cold source through the primary side circulation pipeline 608, and the second mounting plate 6013 is installed on one side of the shell frame 6011 along the second direction; the primary side circulation pipeline 608 extends along the second direction to the side away from the second mounting plate 6013; the two first mounting plates 6012 are detachably connected to the two sides of the shell frame 6011 along the first direction respectively. When the liquid-cooling distribution unit 6 is connected to the pipeline of the immersion liquid cooling unit, it is only necessary to remove the first mounting plate 6012 adjacent to the immersion liquid cooling unit, so as to realize the cabinet connection with the immersion liquid cooling unit. When the immersion liquid cooling unit is connected to the liquid-cooling distribution unit 6, it can be achieved that the pipeline does not leak during use.

[0106] In a specific embodiment, a fixing box 6014, a first mounting bracket 6015, a second mounting bracket 6016 and a third mounting bracket 6017 are provided on the shell frame 6011; the fixing box 6014 is arranged at the top of the shell frame 6011, and is used to fix the display screen 6018; the first mounting bracket 6015 is used to fix the heat exchanger 604; the second mounting bracket 6016 is used to fix the liquid storage box 602; and the third mounting bracket 6017 is used to fix the electric control box 6019.

[0107] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. An immersion liquid cooling unit, characterized in that: include: An outer frame structure (1) comprises an outer frame (101) and a side plate (102); the bottom of the outer frame (101) is provided with a first through-hole, and the side wall of the outer frame (101) is provided with a second through-hole; the side plate (102) is arranged corresponding to the second through-hole and is detachably connected to the side wall of the outer frame (101); An inner liner structure (2) is arranged in the outer frame (101); a gap is provided between the inner liner structure (2) and the outer frame structure (1); The liquid inlet and outlet pipeline (3) is arranged in the gap between the outer frame structure (1) and the inner liner structure (2), and is in communication with the inner liner structure (2); the liquid inlet and outlet pipeline (3) is used to be connected to an underground cold source pipeline through the first through-hole, or to be connected to an above-ground cold source pipeline through the second through-hole; The server body (4) is arranged in the inner tank structure (2).

2. The immersion liquid cooling unit according to claim 1, characterized in that: The liquid inlet and outlet pipelines (3) are provided with two groups, and the two groups of the liquid inlet and outlet pipelines (3) are arranged at intervals; and the liquid inlet and outlet pipelines (3) are provided with switch valves.

3. The immersion liquid cooling unit according to claim 2, characterized in that: The inner tank structure (2) further comprises a liquid return bin (201), the liquid return bin (201) being protrudingly arranged on one side of the inner tank structure (2), and the two groups of liquid inlet and outlet pipes (3) are both arranged on the side where the liquid return bin (201) is located, and are located below the liquid return bin (201).

4. The immersion liquid cooling unit according to claim 3, characterized in that: The bottom of the liquid return bin (201) is provided with a liquid outlet, the inner tank structure (2) further comprises a filter box (202), the filter box (202) is arranged at the bottom of the liquid return bin (201), and the liquid outlet is arranged at the position where the filter box (202) is located and is in communication with the filter box (202); And / or, the inner tank structure (2) further comprises a filter rack (203), and the filter rack (203) is arranged on the top of the liquid return bin (201).

5. The immersion liquid cooling unit according to any one of claims 1 to 4, characterized in that: The inner liner structure (2) further comprises a bracket assembly (204), the bracket assembly (204) being arranged inside the inner liner structure (2) and comprising a first bracket (2041) and a second bracket (2042), the first bracket (2041) and the second bracket (2042) being respectively detachably connected to two inner side walls of the inner liner structure (2); the two ends of the server body (4) are respectively connected to the first bracket (2041) and the second bracket (2042); And / or, the liner structure (2) further comprises a first filling plate (205), the first filling plate (205) being located inside the liner structure (2), being arranged adjacent to the server body (4), and being detachably connected to the inner side wall of the liner structure (2); And / or, the inner liner structure (2) further includes a second filling plate (206), which is located inside the inner liner structure (2), is arranged adjacent to the server body (4), and is detachably connected to the bottom wall of the inner liner structure (2).

6. The immersion liquid cooling unit according to any one of claims 1 to 4, characterized in that: The liner structure (2) further comprises a sealing strip (207), a connection status indicator light (208) and a limit switch (209); the sealing strip (207) is located at the top opening of the liner structure (2) and is fixed to the liner structure (2); the limit switch (209) is located below the sealing strip (207) and is fixed to the inner side wall of the liner structure (2); the connection status indicator light (208) is arranged below the sealing strip (207), is arranged adjacent to the limit switch (209), is electrically connected to the limit switch (209), and is fixed to the inner side wall of the liner structure (2); The immersion liquid cooling unit further comprises an upper cover assembly (5), wherein the upper cover assembly (5) comprises: A cover plate (501) having one side hinged to the inner liner structure (2) and the other side having a connection position connected to the inner liner structure (2) and a separation position separated from the inner liner structure (2); and a protrusion is provided on the side of the cover plate (501) facing the inner liner structure (2); When the other side of the cover plate (501) is in the connection position, the protrusion abuts against the limit switch (209), and the limit switch (209) controls the connection status indicator light (208) to be in a first indication state; when the other side of the cover plate (501) is in the separation position, the protrusion separates from the limit switch (209), and the limit switch (209) controls the connection status indicator light (208) to be in a second indication state; An observation window (502) is provided on the cover plate (501).

7. The immersion liquid cooling unit according to claim 6, characterized in that: The upper cover assembly (5) further comprises a reflux groove (503), wherein the reflux groove (503) is arranged on the cover plate (501) and is located on a side where the cover plate (501) and the inner liner structure (2) are hinged, and the distance between the groove wall on the side of the reflux groove (503) opposite to the cover plate (501) and the cover plate (501) gradually decreases towards the side where the cover plate (501) and the inner liner structure (2) are hinged.

8. A data center, characterized in that: It comprises a liquid cooling distribution unit (6) and an immersion liquid cooling unit according to any one of claims 1 to 7, and two sides of the immersion liquid cooling unit are respectively connected to two groups of the liquid cooling distribution units (6).

9. The data center according to claim 8, characterized in that: The liquid cooling distribution unit (6) comprises: Shell assembly; A liquid storage box (602) is arranged in the housing assembly; and the bottom of the liquid storage box (602) is connected to the liquid outlet pipeline (302) of the immersion liquid cooling unit through an inlet pipe (603); A heat exchanger (604) is arranged in the housing assembly and is located below the liquid storage box (602) and is used to be connected to an external cold source; and the heat exchanger (604) is connected to the liquid storage box (602) via a secondary side water inlet pipeline (605), and is connected to the liquid inlet pipeline (301) of the immersion liquid cooling unit via a secondary side water outlet pipeline (606); At least two groups of submersible pumps (607) are arranged in the liquid storage box (602).

10. The data center according to claim 9, characterized in that: One group of the liquid cooling distribution units (6) is connected to two groups of the immersion liquid cooling units, and the two groups of the immersion liquid cooling units are respectively arranged on both sides of the liquid cooling distribution unit (6); The inlet pipe (603) comprises an inlet main pipe (6031), a first inlet branch pipe (6032) and a second inlet branch pipe (6033); the inlet main pipe (6031) is connected to the liquid storage box (602); the first inlet branch pipe (6032) and the second inlet branch pipe (6033) are respectively arranged on both sides of the inlet main pipe (6031), and are respectively connected to the liquid outlet pipes (302) of two adjacent groups of the immersion liquid cooling units; The secondary side water outlet pipeline (606) comprises a water outlet main pipe (6061), a first water outlet branch pipe (6062) and a second water outlet branch pipe (6063); the water outlet main pipe (6061) is connected to the heat exchanger (604); the first water outlet branch pipe (6062) and the second water outlet branch pipe (6063) are respectively arranged on both sides of the water outlet main pipe (6061), and are respectively connected to the liquid inlet pipes (301) of two adjacent groups of the immersion liquid cooling units.

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