A closed-loop heat dissipation device for computer room hot aisles

Abstract

This utility model discloses a closed-loop heat dissipation device for hot aisles in computer rooms, comprising: a server rack having an equipment housing cavity and a heat dissipation pipe communicating with the equipment housing cavity; a first compensation ring fitted around the heat dissipation pipe; a flexible retractable tube with its inlet end elastically fitted around the first compensation ring; a rigid exhaust pipe with its inlet end fitted with a second compensation ring and its outlet end fitted around the second compensation ring; and a cooling fan for drawing air from the flexible retractable tube into the rigid exhaust pipe. This device effectively isolates the hot and cold aisles in the computer room, improving the room's heat dissipation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of computer room heat dissipation technology, and in particular to a closed heat dissipation device for computer room thermal aisles. Background Technology

[0002] Hot aisle enclosed cooling systems are advanced cooling solutions that completely isolate the hot exhaust gases from server racks and directly guide them back to the air conditioning return system by installing physical enclosures (ceiling, side panels, doors) on the exhaust side (hot aisle) of the server racks. Its core objective is to completely prevent the mixing of hot and cold air, thereby significantly improving cooling efficiency, reducing energy consumption, eliminating hot spots, and supporting higher-density equipment deployment. It is one of the key technologies for cooling modern, efficient data centers.

[0003] Existing technology can seal off the hot aisle area using isolation modules, drawing in cool air from the front-end equipment of the server rack and expelling hot air into the hot aisle before returning it to the air conditioning return vents, ensuring isolation between hot and cold air. However, the ventilation duct interfaces connected to the hot aisle are not adjustable, the applicable ventilation openings are limited, and the sealing effect of the sealed ducts in the hot aisle is poor, resulting in low heat dissipation efficiency in the server room. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a closed heat dissipation device for the hot aisle of a computer room. The sealed pipe interface of the hot aisle has universality, while improving the sealing performance of the hot aisle, so as to improve the heat dissipation efficiency of the computer room.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A closed-loop heat dissipation device for computer room hot aisles, comprising:

[0007] A server rack, the server rack having an equipment housing cavity, the server rack having heat dissipation pipes, the heat dissipation pipes being connected to the equipment housing cavity;

[0008] The first compensation ring is sleeved around the heat dissipation pipe;

[0009] A flexible retractable tube, wherein the air inlet end of the flexible retractable tube is elastically sleeved outside the first compensation ring;

[0010] A rigid discharge pipe, wherein the inlet end of the rigid discharge pipe is fitted with a second compensation ring, and the outlet end of the flexible retractable pipe is fitted outside the second compensation ring;

[0011] A cooling fan is used to draw air from the flexible retractable tube into the rigid discharge tube.

[0012] Furthermore, a rigid support tube is sleeved on the outer wall of the flexible retractable tube, and the outer wall of the flexible retractable tube abuts against the inner wall of the rigid support tube.

[0013] Furthermore, the inner wall of the rigid support tube is bonded or sewn to the outer wall of the flexible retractable tube.

[0014] Furthermore, the rigid support tube is made of plastic or metallic materials.

[0015] Furthermore, the cooling fan is located on the cooling pipe.

[0016] Furthermore, a filter device is provided inside the device's accommodating cavity, and the filter device is connected to the inlet of the heat dissipation pipe.

[0017] Furthermore, the filter device is threadedly connected to the heat dissipation pipe.

[0018] Furthermore, both the first compensation ring and the second compensation ring are made of silicone or fluororubber.

[0019] Furthermore, the heat dissipation pipe is located at the top of the device accommodating cavity.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. The cabinet has a device housing cavity and a heat dissipation pipe. The heat dissipation pipe is connected to the device housing cavity, and hot air can flow from the device housing cavity to the heat dissipation pipe.

[0022] 2. Based on the fact that the first compensation ring is sleeved around the heat dissipation pipe, by replacing the first compensation ring with different sizes, the flexible retractable tube can be adapted to heat dissipation pipes of different diameters.

[0023] 3. The air inlet end of the flexible retractable tube is elastically sleeved outside the first compensation ring, and the flexible retractable tube can be sealed to the heat dissipation pipe.

[0024] 4. A second compensation ring is fitted onto the inlet end of the rigid discharge pipe, and the outlet end of the flexible retractable pipe is fitted onto the outside of the second compensation ring. By replacing the second compensation ring with one of different sizes, the flexible retractable pipe can be adapted to rigid discharge pipes of different diameters, and the flexible retractable pipe can be sealed to the rigid discharge pipe.

[0025] 6. The cooling fan is used to draw air from the flexible retractable pipe into the rigid exhaust pipe, which can isolate the hot aisle and cold aisle of the computer room and improve the heat dissipation efficiency of the computer room. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a closed-loop heat dissipation device for a computer room thermal aisle according to the present invention;

[0027] Figure 2 for Figure 1 The front view;

[0028] Figure 3 for Figure 2 Sectional view at point A.

[0029] In the diagram: 1. Cabinet; 2. Equipment housing cavity; 3. Heat dissipation pipe; 4. First compensation ring; 5. Flexible retractable tube; 51. Air inlet; 52. Air outlet; 6. Rigid exhaust pipe; 61. Inlet end; 7. Second compensation ring; 8. Cooling fan; 9. Rigid support tube; 10. Filter device. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is described as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0032] 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. The terminology used herein in the specification of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] See Figures 1-3 A preferred embodiment of the closed-loop heat dissipation device for computer room hot aisles according to the present invention includes a cabinet 1, a first compensation ring 4, a flexible retractable tube 5, a rigid exhaust pipe 6, and a heat dissipation fan 8.

[0034] The cabinet 1 has an equipment housing cavity 2 and a heat dissipation pipe 3. The heat dissipation pipe 3 is connected to the equipment housing cavity 2. The equipment housing cavity 2 can be single or multiple. The heat dissipation pipe 3 and the equipment housing cavity 2 can be fixedly connected or detachably connected, as long as the heat dissipation pipe 3 is connected to the equipment housing cavity 2. In this way, hot air can flow from the equipment housing cavity 2 to the heat dissipation pipe 3. The first compensation ring 4 is sleeved on the outside of the heat dissipation pipe 3. The first compensation ring 4 has multiple sizes to provide replacement. The air inlet end 51 of the flexible retractable tube 5 is elastically sleeved on the outside of the first compensation ring 4. The first compensation ring 4 provides elastic compensation between the flexible retractable tube 5 and the heat dissipation pipe 3, so that the flexible retractable tube 5 and the heat dissipation pipe 3 form a sealed connection. When the cabinet 1 has multiple equipment housing cavities 2, it can have multiple heat dissipation pipes 3, multiple first compensation rings 4, and multiple flexible retractable tubes 5. Multiple flexible retractable tubes 5 can be connected to a single flexible retractable tube 5.

[0035] A second compensating ring 7 is fitted onto the inlet end 61 of the rigid discharge pipe 6, and the outlet end 52 of the flexible retractable pipe 5 is fitted onto the outside of the second compensating ring 7. The second compensating ring 7 is available in various sizes for replacement. The second compensating ring 7 provides elastic compensation between the flexible retractable pipe 5 and the rigid discharge pipe 6, so that the flexible retractable pipe 5 and the rigid discharge pipe 6 form a sealed connection. The second compensating ring 7 can also be fitted onto the outlet end 52 of the flexible retractable pipe 5, and the inlet section of the rigid discharge pipe 6 is fitted onto the outside of the second compensating ring 7, so as to achieve a sealed connection between the inlet end 61 of the rigid discharge pipe 6 and the outlet end 52 of the flexible retractable pipe 5.

[0036] The cooling fan 8 is used to draw air from the flexible retractable tube 5 into the rigid discharge tube 6. The cooling fan 8 can be installed in the accommodating cavity, the cooling tube 3, or the rigid discharge tube 6.

[0037] When in use, the cooling fan 8 is turned on, and hot air will pass through the heat dissipation pipe 3, then through the flexible retractable pipe 5 and be drawn into the rigid exhaust pipe 6, and finally be discharged to the return air port of the refrigeration system to be transformed into cold air flowing back to the computer room. This achieves the isolation of the hot aisle and the cold aisle and improves the heat dissipation efficiency of the computer room.

[0038] The cabinet 1 has an equipment housing cavity 2 and a heat dissipation pipe 3 connected to the equipment housing cavity 2, allowing hot air to flow from the equipment housing cavity 2 to the heat dissipation pipe 3. A first compensation ring 4 is fitted around the heat dissipation pipe 3; by replacing the first compensation ring 4 with different sizes, the flexible retractable tube 5 can be adapted to heat dissipation pipes 3 of different diameters. The air inlet end 51 of the flexible retractable tube 5 is elastically fitted around the first compensation ring 4, allowing the flexible retractable tube 5 to be sealed to the heat dissipation pipe 3. A second compensation ring 7 is fitted around the inlet end 61 of the rigid exhaust pipe 6, and the air outlet end 52 of the flexible retractable tube 5 is fitted around the second compensation ring 7; by replacing the second compensation ring 7 with different sizes, the flexible retractable tube 5 can be adapted to rigid exhaust pipes 6 of different diameters, allowing the flexible retractable tube 5 to be sealed to the rigid exhaust pipe 6. A cooling fan 8 is used to draw air from the flexible retractable tube 5 into the rigid exhaust pipe 6, isolating the hot and cold aisles of the computer room and improving the heat dissipation efficiency of the computer room.

[0039] Preferably, a rigid support tube 9 is fitted onto the outer wall of the flexible retractable tube 5, with the outer wall of the flexible retractable tube 5 abutting against the inner wall of the rigid support tube 9. The flexible retractable tube 5 is prone to collapse under external pressure, resulting in a reduction in the airflow cross-sectional area. The rigid support tube 9 is less prone to deformation. The abutment between the outer wall of the flexible retractable tube 5 and the inner wall of the rigid support tube 9 provides radial compressive strength to the flexible retractable tube 5, thus preventing radial deformation. Specifically, the rigid support tube 9 is provided with connecting components, allowing it to be connected to a wall or ceiling to fix the position of the flexible retractable tube 5.

[0040] Preferably, the inner wall of the rigid support tube 9 is bonded or sewn to the outer wall of the flexible retractable tube 5. An unfixed inner wall of the flexible retractable tube 5 may partially collapse under negative pressure, increasing internal air resistance and hindering hot air flow. Bonding or sewing the inner wall of the rigid support tube 9 to the outer wall of the flexible retractable tube 5 ensures the outer wall of the flexible tube is tightly attached to the inner wall of the rigid support tube 9, maintaining a constant hot air flow cross-section. Furthermore, the seam or adhesive layer can transfer external loads to the rigid support tube 9, reducing the stress borne solely by the flexible retractable tube 5. In addition, the adhesive chosen is high-temperature resistant epoxy resin or ceramic fiber seam, which has no risk of delamination at high temperatures and can improve the fire resistance rating.

[0041] Preferably, the rigid support tube 9 is made of plastic or metal. Plastic materials have low density, allowing for easy handling and installation by a single person; they are non-conductive, avoiding the risk of leakage due to poor grounding of the cabinet 1; they have a high damping coefficient, reducing airflow vibration noise; and they can be injection molded in one piece, reducing costs. Using plastic materials enables the rigid support tube 9 to be lightweight and easy to install. Metal materials have high strength, high temperature resistance, and good stability, making them safer and more reliable.

[0042] Preferably, the cooling fan 8 is installed within the heat dissipation pipe 3. Embedding the cooling fan 8 into the heat dissipation pipe 3 allows for direct extraction of high-temperature exhaust gas from the heat channel, reducing turbulence, precisely directional airflow, and improving heat dissipation efficiency. Simultaneously, it reduces the need for wind resistance components such as bends and diameter changes, bringing the operating point of the cooling fan 8 closer to its optimal efficiency range. When there are multiple equipment housing cavities 2, the independent fan cabinet 1 can be eliminated, and the fans can be distributed and embedded in various sections of the heat dissipation pipe 3, freeing up space on the floor or ceiling of the computer room. Furthermore, since the fan is enclosed by the pipe, noise is attenuated by the sound-absorbing material on the inner wall of the pipe, reducing overall noise levels.

[0043] Preferably, a filter device 10 is provided inside the equipment housing cavity 2, and the filter device 10 is connected to the inlet of the heat dissipation pipe 3. Unfiltered hot air contains particulate matter such as dust and fibers, which can cause blockage of the heat dissipation pipe 3 over a long period of time. The filter device 10 can prevent contaminants from entering the flexible and expandable pipe. In addition, the filter device 10 can balance the airflow velocity, avoid pressure fluctuations in the heat channel caused by local turbulence, and achieve dynamic balance of airflow in the pipe. The filter device 10 is designed to be quick-release, allowing the filter element to be replaced individually without stopping the machine to clean the pipe.

[0044] Preferably, the filter device 10 is threadedly connected to the heat dissipation pipe 3. The threaded fit provides better airtightness and allows for quick assembly and disassembly without tools; the threaded pair can withstand greater axial tensile force, such as the impact of sudden start-up and shutdown of the fan, and has higher mechanical stability; applying anti-loosening adhesive to the threads can keep them locked under vibration conditions, and embedding a silicone ring at the root of the thread can achieve double sealing. When the silicone ring ages, the metal surface of the thread can still maintain a basic seal.

[0045] Preferably, both the first compensation ring 4 and the second compensation ring 7 are made of silicone or fluororubber. Silicone and fluororubber have high elasticity, which can compensate for axial displacement and angular deflection, and can ensure the sealing between the heat dissipation pipe 3, the flexible telescopic pipe and the rigid discharge pipe 6. After multiple expansion and contraction cycles, the permanent compression deformation is small and the oxygen index is not low, which has a certain degree of fire safety.

[0046] Preferably, the heat dissipation pipe 3 is located at the top of the equipment housing cavity 2. Hot air has a low density and naturally rises, allowing the top heat dissipation pipe 3 to directly capture it. The top placement of the heat dissipation pipe 3 frees up floor space in the server room, facilitating the arrangement, adjustment, or expansion of the server racks 1. In case of fire, high-temperature smoke naturally rises to the top heat dissipation pipe 3 and can be quickly discharged via a linked smoke exhaust valve. Gas extinguishing nozzles are preferentially distributed along the top heat dissipation pipe 3, ensuring uniform settling of the extinguishing agent from top to bottom, thus improving fire safety. Furthermore, the heat dissipation pipe 3 is made of extruded aluminum alloy profiles, serving both as an air duct and providing top support for the row of server racks 1. The inlet of the heat dissipation pipe 3 is equipped with a flared air collection hood to uniformly capture the hot airflow.

[0047] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0048] 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 at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0049] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A heat aisle enclosed cooling device for a computer room, characterized by, include: A cabinet (1) having an equipment housing cavity (2) and a heat dissipation pipe (3) connected to the equipment housing cavity (2); The first compensation ring (4) is sleeved around the heat dissipation pipe (3); A flexible retractable tube (5) is provided, wherein the air inlet end (51) of the flexible retractable tube (5) is elastically sleeved outside the first compensation ring (4); A rigid discharge pipe (6) is provided with a second compensation ring (7) fitted at its inlet end (61) and the outlet end (52) of the flexible retractable pipe (5) is fitted outside the second compensation ring (7). A cooling fan (8) is used to draw air from the flexible retractable tube (5) into the rigid discharge tube (6).

2. The enclosed heat sink for a hot aisle of a computer room of claim 1, wherein, The outer wall of the flexible retractable tube (5) is fitted with a rigid support tube (9), and the outer wall of the flexible retractable tube (5) abuts against the inner wall of the rigid support tube (9).

3. The enclosed heat sink for a hot aisle of a computer room of claim 2, wherein, The inner wall of the rigid support tube (9) is bonded or sewn to the outer wall of the flexible retractable tube (5).

4. The enclosed heat sink of claim 3, wherein, The rigid support tube (9) is made of plastic or metallic materials.

5. The enclosed heat sink of claim 1, wherein, The cooling fan (8) is located on the cooling pipe (3).

6. The enclosed heat sink for a hot aisle of a computer room of claim 5, wherein, The equipment accommodating cavity (2) is provided with a filter device (10), which is connected to the inlet of the heat dissipation pipe (3).

7. The enclosed heat sink of claim 6, wherein the heat sink is configured to be mounted on a wall of a hot aisle of a computer room. The filter device (10) is threadedly connected to the heat dissipation pipe (3).

8. The enclosed heat sink for a hot aisle of a computer room of claim 1, wherein, Both the first compensation ring (4) and the second compensation ring (7) are made of silicone or fluororubber.

9. The enclosed heat sink of claim 1, wherein, The heat dissipation pipe (3) is located at the top of the device accommodating cavity (2).

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