Single-phase immersion liquid cooling cabinet

Abstract

The utility model belongs to data center refrigeration equipment technical field, specifically provides a single -phase immersion type liquid cooling cabinet, including cabinet body, cooling liquid delivery unit and take -off subassembly, multiple servers are arranged in the accommodating cavity of cabinet body neatly, the liquid outlet pipe sends cooling liquid to the accommodating cavity, the liquid inlet pipe exports cooling liquid to refrigerating unit, realizes the circulating delivery of cooling liquid. The side of cabinet body has the object carrier, is provided with the grating plate above the object carrier, and the take -off subassembly can grab the server and place the server to the grating plate along the track. The application sets up take -off subassembly and is convenient for engineer to take out the server from the accommodating cavity when operating and maintaining, sets up the object carrier, the liquid storage tray and the grating plate on the side of cabinet body, so that the cooling liquid remaining on the server can drop to the liquid storage tray, realizes the collection to cooling liquid, avoids the waste, and prevents the cooling liquid from polluting the ground of data center.

Description

Technical Field

[0001] This application belongs to the field of data center cooling equipment technology, specifically a single-phase immersion liquid-cooled cabinet. Background Technology

[0002] Immersion liquid-cooled server racks are a highly efficient data center cooling solution. In single-phase immersion liquid-cooled racks, the server is completely submerged in an insulating coolant. The coolant circulates through a refrigeration unit, exchanging heat with the server's internal heat-generating components, thus achieving efficient heat dissipation and ensuring the server operates efficiently at a suitable temperature. Compared to conventional air cooling, single-phase immersion liquid-cooled server racks offer advantages such as superior heat dissipation and lower noise.

[0003] However, existing single-phase immersion liquid-cooled server racks have the following drawbacks: During maintenance, servers need to be removed from the rack for component repair and replacement. Firstly, the weight of a single server ranges from 20-100 kg, far exceeding the safe range for manual handling, making it inconvenient to move. Secondly, when removing servers from the rack, coolant drips onto the floor, causing waste and soiling. Utility Model Content

[0004] Based on the above-mentioned technical problems, this application provides a single-phase immersion liquid-cooled cabinet to solve the technical problems in the prior art that servers are inconvenient to remove from the cabinet during operation and maintenance, and that coolant drips when servers are moved.

[0005] To achieve the above objectives, the technical solution adopted in this application is: to provide a single-phase immersion liquid-cooled cabinet, comprising: The cabinet body has a receiving cavity with an opening at the top. Multiple slots are spaced apart along the length of the receiving cavity. The slots are used to accommodate servers. The cabinet body has a platform on one side along its length. A liquid storage tray is provided on the platform. A grid plate is provided above the liquid storage tray. A coolant delivery unit includes an inlet pipe and an outlet pipe respectively communicating with the receiving cavity; and The pick-and-place assembly includes a track and a picking mechanism. The track is located above the cabinet body, with one end extending above the platform and the other end extending above the slot furthest from the platform. The picking mechanism is movably mounted on the track and is used to pick up and release the server.

[0006] In one possible implementation, the interior of the receiving cavity is provided with a plurality of mounting guide rails spaced apart along its own length direction. The mounting guide rails include two limiting plates arranged opposite to each other in the width direction of the receiving cavity. The limiting plates are arranged vertically, and the groove is formed between the two limiting plates.

[0007] In one possible implementation, the limiting plate has a slot for holding the side of the server.

[0008] In one possible implementation, the distance between two adjacent mounting rails is greater than the thickness of the server, so that a flow channel for coolant flow is formed between the two adjacent servers.

[0009] In one possible implementation, the inlet pipe extends along the length of the receiving cavity and is provided with a plurality of inlet holes at intervals; the outlet pipe extends along the length of the receiving cavity and is provided with a plurality of outlet holes at intervals; the inlet pipe and the outlet pipe are respectively located at two opposite corners of the receiving cavity, and the server is located within the height range formed by the inlet pipe and the outlet pipe.

[0010] In one possible implementation, the inlet pipe is located at one of the corners below the receiving cavity and is connected to the coolant return pipe, the outlet pipe is located at the corner above the receiving cavity and opposite to the inlet pipe and is connected to the coolant delivery pipe, and the coolant return pipe and the coolant delivery pipe are respectively connected to the refrigeration unit.

[0011] In one possible implementation, both the inlet and outlet orifices face horizontally.

[0012] In one possible implementation, the liquid storage tray has a drain port at its bottom or near the bottom of its side wall.

[0013] In one possible implementation, the material handling mechanism includes: The lifting unit is movably mounted on the track and has a vertically downward lifting end; Translation unit, used to drive the lifting unit to move along the track; and A grabbing unit, located at the lifting end, is used to grab or release the server.

[0014] In one possible implementation, the top of the server is provided with two lifting rings spaced apart along the width direction of the receiving cavity, and the gripping unit includes: A gripping drive component is located at the lifting end and has two telescopic ends along the width direction of the receiving cavity, the two telescopic ends being arranged opposite to each other; and Two grippers are respectively located at the two telescopic ends, and the lower end of each gripper has a hook for connecting to the lifting ring corresponding to the top of the server.

[0015] Compared with the prior art, the beneficial effects of the single-phase immersion liquid-cooled cabinet provided in this application are: The single-phase immersion liquid-cooled cabinet provided in this application includes a cabinet body, a coolant delivery unit, and a pick-and-place assembly. Multiple servers are neatly arranged in the receiving cavity of the cabinet body. A coolant outlet pipe delivers coolant into the receiving cavity, while an inlet pipe discharges the coolant to the refrigeration unit, achieving coolant circulation. One side of the cabinet body has a platform, and a grid plate is installed above the platform. The pick-and-place assembly can grasp the servers and place them onto the grid plate along a track. Because the track is set along the length of the receiving cavity, coolant dripping during server transport will fall directly into the receiving cavity, preventing ground contamination. After the server is placed on the grid plate, coolant will also drip through the grid plate into a storage tray below, achieving coolant collection.

[0016] This application incorporates a pick-and-place component to facilitate engineers in removing servers from the housing during maintenance. A platform, a coolant tray, and a grid plate are installed on one side of the rack body, allowing residual coolant on the server to drip into the coolant tray for collection. This avoids waste and prevents coolant from contaminating the data center floor. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a single-phase immersion liquid-cooled cabinet provided in an embodiment of this application when the server is removed; Figure 2 for Figure 1 Enlarged view of part A in the middle; Figure 3 A schematic diagram of the structure of a single-phase immersion liquid-cooled cabinet provided in this embodiment of the application when the server is moved above the platform; Figure 4 A schematic diagram of the structure of a single-phase immersion liquid-cooled cabinet provided in this application embodiment when no server is installed; Figure 5 An internal sectional view of a single-phase immersion liquid-cooled cabinet provided in an embodiment of this application; Figure 6This is a layout diagram of the inlet and outlet pipes; Figure 7 This is a structural diagram of the gripping unit and the lifting unit; Explanation of reference numerals in the attached figures: 10. Cabinet body; 11. Limiting plate; 111. Slot; 12. Liquid storage tray; 121. Liquid drain port; 13. Grille plate; 20. Coolant delivery unit; 21. Inlet pipe; 22. Outlet pipe; 221. Outlet hole; 30. Picking and placing assembly; 31. Track; 32. Picking mechanism; 321. Lifting unit; 322. Translation unit; 323. Gripping unit; 3231. Gripping drive component; 3232. Gripper; 3233. Lifting hook; 40. Server; 41. Lifting ring. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0020] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0021] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0024] Please refer to the following: Figures 1 to 7The single-phase immersion liquid-cooled cabinet provided in the embodiments of this application will be described below.

[0025] Please see Figures 1 to 5 This application provides a single-phase immersion liquid-cooled cabinet including a cabinet body 10, a coolant delivery unit 20, and a pick-and-place assembly 30. The cabinet body 10 has a receiving cavity with an opening at the top. Multiple slots are spaced along the length of the cavity to accommodate servers 40. A platform is located on one side of the cabinet body 10 along its length, and a liquid storage tray 12 is mounted on the platform. A grid plate 13 is located above the liquid storage tray 12. The coolant delivery unit 20 includes an inlet pipe 21 and an outlet pipe 22, both connected to the receiving cavity. The pick-and-place assembly 30 includes a track 31 and a picking mechanism 32. The track 31 is located above the cabinet body 10, with one end extending above the platform and the other end extending above the slot furthest from the platform. The picking mechanism 32 is movably mounted on the track 31 and is used to pick up and release the servers 40.

[0026] Compared with the prior art, the beneficial effects of the single-phase immersion liquid-cooled cabinet provided in this application embodiment are: The single-phase immersion liquid-cooled cabinet provided in this embodiment includes a cabinet body 10, a coolant delivery unit 20, and a pick-and-place assembly 30. Multiple servers 40 are neatly arranged in the receiving cavity of the cabinet body 10. A coolant outlet pipe 22 delivers coolant into the receiving cavity, and a coolant inlet pipe 21 discharges the coolant into the refrigeration unit, achieving coolant circulation. One side of the cabinet body 10 has a platform, and a grid plate 13 is installed above the platform. The pick-and-place assembly 30 can grasp the servers 40 and place them onto the grid plate 13 along a track 31. Since the track 31 is arranged along the length of the receiving cavity, any dripping coolant from the servers 40 during transport along the track 31 will fall directly into the receiving cavity, preventing ground contamination. The grid plate 13 supports the servers 40. When a server 40 is placed on the grid plate 13, coolant will also drip through the grid plate 13 into the lower storage tray 12, achieving coolant collection.

[0027] This application embodiment includes a pick-and-place component 30 to facilitate engineers in removing the server 40 from the housing cavity during operation and maintenance. A platform, a liquid storage tray 12, and a grid plate 13 are provided on one side of the rack body 10 so that the coolant remaining on the server 40 can drip into the liquid storage tray 12, thereby collecting the coolant, avoiding waste, and preventing the coolant from polluting the data center floor.

[0028] The cabinet provided in this application embodiment is suitable for high heat density scenarios such as AI computing and high-performance computing (HPC), and the cavity can accommodate servers or other heat-generating components.

[0029] The cabinet body 10 can be made of metal sheets (such as steel plates or aluminum alloy plates) and profiles (such as steel pipes) and welded together. The overall shape of the cabinet body 10 is rectangular. During use, the housing of the cabinet body 10 is used to store coolant and servers 40. Therefore, the cabinet body 10 should have sufficient load-bearing strength.

[0030] The cabinet body 10 has multiple slots inside its cavity, each slot is used to accommodate a server 40. The server 40 is pluggable and detachable in the slot. During normal operation, the server 40 is accommodated in the slot, and the flowing coolant can carry away the heat generated by the server 40 during operation, thereby cooling the server 40.

[0031] The dimensions of the slot should be compatible with the dimensions of the server 40, ensuring that the server 40 will not move or shake within the housing. There are no restrictions on the specific specifications and model of the server 40; most servers 40 in existing technology are square in shape. The server 40 requires connection to routers, controllers, and other electronic devices during operation. When maintenance is required, engineers must first manually disconnect or unplug the relevant connectors of the server 40, then control the material handling mechanism 32 to remove the server 40 from above and transfer it to the loading platform on one side of the rack body 10.

[0032] The platform should be large enough to accommodate at least one server 40. The platform can serve as a temporary storage location for the server 40, allowing it to drain excess coolant before being moved to another area for disassembly and repair. Alternatively, the platform can function directly as a maintenance platform, allowing engineers to disassemble and replace components directly on the platform. After maintenance, the server 40 can be returned to its original position using the loading / unloading component 30, and the relevant cables can be reconnected for normal operation.

[0033] The grating plate 13 is used to support the server 40. The grating plate 13 can be a steel mesh plate, which is sufficient to stably support the server 40. A liquid reservoir 12 is provided below the grating plate 13 to receive dripping coolant and prevent waste.

[0034] The coolant delivery unit 20 includes an inlet pipe 21 and an outlet pipe 22. The outlet pipe 22 is connected to the coolant delivery pipeline. The coolant flows into the receiving cavity through the outlet pipe 22. The inlet pipe 21 is connected to the coolant return pipeline. The coolant returns to the refrigeration unit through the inlet pipe 21 and the coolant return pipeline. After being cooled by the refrigeration unit, it is then delivered to the coolant delivery pipeline.

[0035] To facilitate real-time monitoring of the coolant delivery or return temperature, temperature sensors can be installed on the coolant delivery line and coolant return line respectively. The temperature sensors are existing technology, and their specific models and usage will not be described in detail.

[0036] The coolant can be any commercially available product. As an insulating liquid, it will not cause short circuits in the equipment. The coolant is connected to the refrigeration unit via a liquid transfer pump and electrically controlled valves for circulating distribution.

[0037] It should be noted that existing air conditioning units can be directly selected for the refrigeration unit, and existing mature products on the market can be directly selected for the electrical control valves, pumps, pipelines, etc. There are no restrictions on the specific specifications, models and layout of the above-mentioned components. Those skilled in the art should be able to understand and implement this.

[0038] To address dust prevention needs, an openable and closable protective window or cover can be installed on the outside of the cabinet body 10. When maintenance is not required, the protective window or cover is closed to prevent external dust or debris from falling into the enclosure. The protective window or cover is existing technology, and its structure, shape, and installation method will not be elaborated further. Transparent glass can be installed on the protective window or cover to allow external personnel to view the internal situation in real time.

[0039] The pick-and-place assembly 30 is used to pick up, place, and transfer the server 40. The pick-and-place assembly 30 includes a track 31 and a picking mechanism 32 that can move along the track 31. The track 31 guides the picking mechanism 32. The track 31 is located above the opening of the receiving cavity. One track, two, or more tracks can be provided, as long as they can smoothly guide the picking mechanism 32. The track 31 can be located at the edge or at the center.

[0040] The track 31 can be directly supported by channel steel, and the material handling mechanism 32 slides into the groove of the channel steel. The track 31 is welded and fixed above the cabinet body 10 by columns, brackets, etc. The material handling mechanism 32 can grab and release the server 40, and can also move linearly back and forth along the track 31. There are no restrictions on the specific structure of the material handling mechanism 32; it can be a robotic arm of existing technology. The load-bearing capacity of the material handling mechanism 32 should be greater than the weight of the server 40.

[0041] Please see Figure 4 and Figure 5 To facilitate the installation of the server 40, multiple mounting rails are spaced apart along the length of the cavity. Each mounting rail includes two vertically oriented limiting plates 11 positioned opposite each other along the width of the cavity. A slot is formed between the two limiting plates 11, and the server 40 is inserted into the slot from top to bottom. Both sides of the server 40 are respectively abutted against the two limiting plates 11 for positioning. (See also...) Figure 4 The limiting plate 11 also has a slot 111 for holding the side of the server 40, ensuring that the server 40 will not shake or move after being inserted.

[0042] The mounting rails can be spaced at a preset height from the bottom of the housing, allowing the server 40 to be suspended within the housing for better cooling. The mounting rails can be fixed to the inner wall of the server 40 using screws or other methods, and are securely connected to the interior of the housing using necessary support rods, support plates, and other components.

[0043] The distance between two adjacent mounting rails should be greater than the thickness of the server 40, so that a flow channel for coolant can be formed between the two adjacent servers 40. The coolant flows through the flow channel and carries away the heat from the servers 40 on both sides. Servers 40 located at the edge should be spaced a certain distance (e.g., 5 cm, 10 cm) from the side wall of the housing to prevent poor heat dissipation.

[0044] Please see Figure 4 , Figure 5 and Figure 6 In order to ensure uniform flow of coolant, the inlet pipe 21 extends along the length of the cavity and is provided with multiple inlet holes at intervals; the outlet pipe 22 extends along the length of the cavity and is provided with multiple outlet holes 221 at intervals; the inlet pipe 21 and the outlet pipe 22 are located at two opposite corners of the cavity, and the server 40 is located within the height range formed by the inlet pipe 21 and the outlet pipe 22.

[0045] The inlet pipe 21 is located at one of the corners below the receiving cavity and is connected to the coolant return pipe. The outlet pipe 22 is located at the corner above the receiving cavity, opposite to the inlet pipe 21, and is connected to the coolant supply pipe. The coolant return pipe and the coolant supply pipe are respectively connected to the refrigeration unit. The openings of both the inlet and outlet pipes 221 face horizontally. The liquid flow direction is as follows: Figure 4 and Figure 5 As indicated by the arrow.

[0046] The lengths of the inlet pipe 21 and the outlet pipe 22 should be compatible with the length of the receiving cavity. The inlet pipe 21 and the outlet pipe 22 can be fixed using fasteners such as screws, or they can be directly welded to the inside of the receiving cavity. The height of the outlet pipe 22 should be lower than the top of the receiving cavity to prevent coolant overflow. To monitor the coolant level in real time, a level sensor can be installed inside the receiving cavity. The level sensor is a conventional level monitoring device. When the coolant level is too high, the outflow rate of the outlet pipe 22 can be reduced, and the return flow rate of the inlet pipe 21 can be increased. When the coolant level is too low, the outflow rate of the outlet pipe 22 can be increased, and the return flow rate of the inlet pipe 21 can be decreased.

[0047] The openings of the liquid inlet and outlet holes 221 can be round holes, or other shapes. There are no specific restrictions on parameters such as the diameter and spacing of the liquid inlet and outlet holes 221; users can set them as needed.

[0048] Please see Figure 1 , Figure 3 and Figure 4 The liquid storage tray 12 has a drain port 121 at its bottom or near the bottom of its side wall. The stored coolant can be drained through the drain port 121 and then poured into the receiving cavity for recycling.

[0049] Please see Figures 1 to 5 ,as well as Figure 7 The material handling mechanism 32 includes a lifting unit 321, a translation unit 322, and a gripping unit 323. The lifting unit 321 is movably mounted on the track 31 and has a vertically downward lifting end; the translation unit 322 is used to drive the lifting unit 321 to move along the track 31; the gripping unit 323 is located at the lifting end and is used to grip or release the server 40.

[0050] The lifting unit 321 drives the gripping unit 323 to move vertically, and the translation unit 322 drives the gripping unit 323 to move linearly back and forth along the track 31. Optionally, the lifting unit 321 can be a vertically arranged electric telescopic rod, a lifting cylinder, etc., connected to the corresponding power supply and air source through necessary pipe joints, cables, valves, etc. Alternatively, the lifting unit 321 can also be a motor-driven rack and pinion mechanism or a scissor lift, as long as it can achieve vertical lifting.

[0051] The translation unit 322 can be a motor-driven screw-slider mechanism, a cylinder arranged along the length of the track 31, or the like. When the translation unit 322 adopts a screw-slider mechanism, the translation unit 322 includes a screw arranged parallel to the length of the track 31, and a motor for driving the screw to rotate around its own central axis. The gripping unit 323 is threadedly engaged with the screw and simultaneously slidably engaged with the groove of the track 31.

[0052] The gripping unit 323 is capable of gripping and releasing the server 40. To facilitate gripping, two lifting rings 41 are spaced apart on the top of the server 40 along the width direction of the receiving cavity. The gripping unit 323 includes a gripping drive 3231 and grippers 3232. The gripping drive 3231 is located at the lifting end and has two telescopic ends along the width direction of the receiving cavity, with the two telescopic ends facing each other. The two grippers 3232 are respectively located at the two telescopic ends, and the lower end of the grippers 3232 has a lifting hook 3233, which is used to connect with the corresponding lifting rings 41 on the top of the server 40.

[0053] The gripping drive 3231 can be a bidirectional telescopic cylinder, or two unidirectional telescopic cylinders arranged opposite each other, with the cylinder rod forming the aforementioned telescopic end.

[0054] During the grasping process, the translation unit 322 first drives the lifting unit 321 to move above the corresponding server 40. Then, the lifting unit 321 drives the grasping unit 323 to descend, making the lifting hooks 3233 and the lifting rings 41 level. The two telescopic ends of the grasping drive unit 3231 retract synchronously, and the two lifting hooks 3233 approach each other and hook into the corresponding lifting rings 41. Finally, the lifting unit 321 drives the grasping unit 323 to rise, lifting the server 40 out of the slot in the receiving cavity.

[0055] During release, the translation unit 322 first drives the lifting unit 321 and the gripping unit 323 to move the server 40, which has been gripped, above the platform. Then, the lifting unit 321 drives the gripping unit 323 to descend, so that the bottom of the server 40 is supported above the grid plate 13. Finally, the two telescopic ends of the gripping drive unit 3231 extend simultaneously, the lifting hook 3233 disengages from the lifting ring 41 on top of the server 40, and the server 40 is placed on the grid plate 13.

[0056] It is understood that the parts in the above embodiments can be freely combined or deleted to form different combined embodiments. The specific contents of each combined embodiment will not be repeated here. After this description, it can be considered that the present utility model specification has recorded each combined embodiment and can support different combined embodiments.

[0057] The cylinders, hydraulic cylinders, electric telescopic rods, or other similar drive components in the above embodiments can all be directly selected from existing products on the market. Since they are all common drive components in the mechanical field, their specific connection methods, working principles, and control methods are not specifically described. Those skilled in the art should be able to understand and implement them.

[0058] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A single-phase immersion liquid-cooled cabinet, characterized in that, include: The cabinet body (10) has a receiving cavity with an opening at the top. Multiple slots are spaced apart along its length inside the receiving cavity. The slots are used to accommodate servers (40). The cabinet body (10) has a platform on one side along its length. A liquid storage tray (12) is provided on the platform. A grid plate (13) is provided above the liquid storage tray (12). The coolant delivery unit (20) includes an inlet pipe (21) and an outlet pipe (22) respectively communicating with the receiving cavity; and The pick-and-place assembly (30) includes a track (31) and a picking mechanism (32). The track (31) is located above the cabinet body (10). One end of the track (31) extends above the platform and the other end extends above the slot furthest from the platform. The picking mechanism (32) is movably located on the track (31) and is used to pick up and release the server (40).

2. The single-phase immersion liquid-cooled cabinet according to claim 1, characterized in that, The cavity is provided with multiple mounting rails spaced apart along its length. The mounting rails include two limiting plates (11) arranged opposite to each other in the width direction of the cavity. The limiting plates (11) are arranged vertically and the groove is formed between the two limiting plates (11).

3. The single-phase immersion liquid-cooled cabinet according to claim 2, characterized in that, The limiting plate (11) has a slot (111) for holding the side of the server (40).

4. The single-phase immersion liquid-cooled cabinet according to claim 2, characterized in that, The distance between two adjacent mounting rails is greater than the thickness of the server (40) so that a flow channel for coolant flow is formed between the two adjacent servers (40).

5. The single-phase immersion liquid-cooled cabinet according to claim 1, characterized in that, The inlet pipe (21) extends along the length of the accommodating cavity and is provided with a plurality of inlet holes at intervals; the outlet pipe (22) extends along the length of the accommodating cavity and is provided with a plurality of outlet holes (221) at intervals; the inlet pipe (21) and the outlet pipe (22) are respectively located at two opposite corners of the accommodating cavity, and the server (40) is located within the height range formed by the inlet pipe (21) and the outlet pipe (22).

6. The single-phase immersion liquid-cooled cabinet according to claim 5, characterized in that, The inlet pipe (21) is located at one of the corners below the receiving cavity and is connected to the coolant return pipe. The outlet pipe (22) is located at the corner above the receiving cavity and opposite to the inlet pipe (21) and is connected to the coolant delivery pipe. The coolant return pipe and the coolant delivery pipe are respectively connected to the refrigeration unit.

7. The single-phase immersion liquid-cooled cabinet according to claim 5, characterized in that, The openings of both the liquid inlet and the liquid outlet (221) face horizontally.

8. The single-phase immersion liquid-cooled cabinet according to claim 1, characterized in that, The liquid storage tray (12) has a drain port (121) at its bottom or near the bottom of its side wall.

9. The single-phase immersion liquid-cooled cabinet according to claim 1, characterized in that, The material handling mechanism (32) includes: The lifting unit (321) is movably disposed on the track (31) and has a vertically downward lifting end; Translation unit (322) for driving the lifting unit (321) to move along the track (31); and A grabbing unit (323) is located at the lifting end and is used to grab or release the server (40).

10. The single-phase immersion liquid-cooled cabinet according to claim 9, characterized in that, The server (40) has two lifting rings (41) spaced apart at the top along the width direction of the receiving cavity, and the gripping unit (323) includes: A gripping drive unit (3231) is provided at the lifting end and has two telescopic ends along the width direction of the receiving cavity, the two telescopic ends being arranged opposite to each other; and Two grippers (3232) are respectively provided on the two telescopic ends. The lower end of the gripper (3232) has a hook (3233) for connecting to the lifting ring (41) corresponding to the top of the server (40).

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