A network cabinet back-end cooling device

Abstract

This invention relates to the technical field of network cabinets, and more particularly to a network cabinet back-end cooling device, comprising a heat exchanger, a cabinet, a cleaning component, a heat transfer component, a closing component, a heat sink, and a windproof mechanism. The cabinet is mounted on the outer wall of the heat exchanger; the heat sink is mounted on the outer wall of the heat exchanger on the side away from the cabinet; the cleaning component is disposed on the outer wall of the heat sink; the heat transfer component is disposed on the outer wall of the heat exchanger on the side closer to the cabinet; the closing component is disposed on the inner wall of the heat exchanger; and the windproof mechanism includes an adaptive switch component, louvered fans, a synchronization component, and a transmission component. This network cabinet back-end cooling device, through the windproof mechanism, can prevent airflow from entering the cabinet when external airflow flows back in, while maintaining unobstructed airflow during normal heat dissipation.

Description

Technical Field

[0001] This invention relates to the technical field of network cabinets, and more particularly to a cooling device for the back end of a network cabinet. Background Technology

[0002] A network cabinet is a standardized, integrated, enclosed metal cabinet device that is a core component of data center infrastructure.

[0003] Network equipment generates a lot of heat during long-term continuous operation. The equipment inside the network cabinet is densely packed and the space is enclosed, so heat is very easy to accumulate inside the cabinet, especially at the back panel of the back-end equipment. If the heat cannot be dissipated in time and quickly, the temperature inside the cabinet will continue to rise. Therefore, it is necessary to use a cooling device at the back end of the network cabinet to cool it down.

[0004] In outdoor applications, network cabinets generate unpredictable and irregular airflows that can easily flow back into the cabinet through the rear ventilation vents. When cold or mixed air flows back into the cabinet, it disrupts the original directional and stable heat flow circulation system, disturbs the normal cooling channels, and causes disordered and chaotic airflow.

[0005] This phenomenon can negate the cooling device's airflow and heat exchange effect, reducing overall heat dissipation efficiency. It can easily lead to problems such as untimely heat dissipation in high-temperature areas at the rear of the cabinet, uneven heat dissipation throughout the cabinet, persistent localized hot spots, and insufficient overall equipment cooling. Simultaneously, the continuous backflow of cold air from outside and frequent collisions with hot air inside the cabinet can cause rapid and repeated temperature fluctuations within the cabinet, resulting in significant instantaneous temperature differences. This affects the operating conditions and stability of high-precision network electronic equipment such as network switches, servers, optical modules, and storage devices.

[0006] When exposed to environments with frequent temperature fluctuations for extended periods, the precision electronic components inside the equipment, such as chips, capacitors, and circuit boards, will experience repeated thermal expansion and contraction. This accelerates component aging, deformation, and performance degradation, shortens the normal lifespan of core network equipment, and increases the probability of equipment downtime and failure. Summary of the Invention

[0007] The present invention aims to at least partially solve one of the technical problems in the above-mentioned technologies.

[0008] Therefore, one objective of this invention is to provide a cooling device for the back end of a network cabinet, which, by setting up a windproof mechanism, can block airflow from entering the cabinet when external airflow flows back in, and keep the air duct unobstructed during normal heat dissipation.

[0009] To achieve the above objectives, the first aspect of the present invention provides a network cabinet back-end cooling device, comprising a heat exchanger, a cabinet, a cleaning component, a heat transfer component, a closing component, a heat dissipation plate, and a windproof mechanism, wherein the cabinet is installed on the outer wall of the heat exchanger; the heat dissipation plate is installed on the outer wall of the heat exchanger on the side away from the cabinet; the cleaning component is disposed on the outer wall of the heat dissipation plate; the heat transfer component is disposed on the outer wall of the heat exchanger on the side close to the cabinet; the closing component is disposed on the inner wall of the heat exchanger; the windproof mechanism includes an adaptive switch component, louvered fan blades, a synchronization component, and a transmission component, wherein the adaptive switch component is disposed on the outer wall of the heat dissipation plate on the side close to the cabinet; the louvered fan blades are installed on the outer wall of the heat dissipation plate on the side close to the cabinet via the adaptive switch component; the synchronization component is disposed at the bottom of the louvered fan blades; and the transmission component is disposed on the louvered fan blades.

[0010] In addition, the network cabinet back-end cooling device proposed above according to the present invention may also have the following additional technical features: Specifically, the adaptive switch assembly includes a second limiting post and a second spring, wherein the second limiting post is fixed to the outer wall of the heat sink near the cabinet; one end of the second spring is fixed to the outer wall of the heat sink near the cabinet, and the louvered fan blades are connected to the other end of the second spring.

[0011] Specifically, the synchronization assembly includes a transmission rod, a gear, a rotating rod, a mounting plate, and a motor. The transmission rod is installed inside the louvered blades; the gear is sleeved on the outer wall of the transmission rod; the rotating rod meshes with the gear; the mounting plate is installed at the bottom of the louvered blades; and the motor is installed on the mounting plate.

[0012] Specifically, the transmission assembly includes a connecting block, a transmission block, and a fixing bolt, wherein the connecting block is installed outside the rotating rod; the transmission block is installed on the connecting block; the fixing bolt is installed on the transmission block, and the fixing bolt passes through the transmission block and is connected to the connecting block.

[0013] Specifically, the cleaning assembly includes an electric slide, a scraper, and a brush, wherein the electric slide is mounted on the outer wall of the heat sink; the scraper is mounted on the moving block of the electric slide; and the brush is mounted on the outer wall of the scraper.

[0014] Specifically, the heat transfer assembly includes a mounting bracket and heat transfer tubes, wherein the mounting bracket is installed on the outer wall of the heat sink near the cabinet; and the heat transfer tubes are installed inside the mounting bracket.

[0015] Specifically, the closing assembly includes a deformation component, a fixing plate, and a closing plate, wherein the deformation component is disposed on the inner wall of the heat exchanger; two fixing plates are provided, and the two fixing plates are respectively installed on the inner wall of the heat exchanger through the deformation component; the closing plate is fixed to the bottom wall of the two fixing plates.

[0016] Specifically, the deformation component includes a first limiting post and a first spring. There are two first limiting posts, which are fixed to the inner wall of the heat exchanger. There are also two first springs, which are respectively sleeved on the outside of the corresponding first limiting post, and one end of each first spring is fixed to the inner wall of the heat exchanger. The two fixing plates are respectively connected to the other end of the corresponding first spring.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up a windproof mechanism, the present invention can automatically block the airflow from entering the cabinet when the external airflow backflows, avoid the reverse turbulence from disrupting the original stable heat flow circulation system inside the cabinet, solve the problem of reduced heat dissipation efficiency and local hot spots caused by disordered collision of hot and cold airflows, avoid frequent temperature fluctuations inside the cabinet, and ensure the temperature stability of the network equipment operating environment.

[0018] 2. The cleaning component can automatically clean the dust, lint and other debris accumulated on the surface of the heat sink, preventing debris from clogging the pores of the heat sink and reducing heat exchange efficiency. It eliminates the need for regular manual cleaning and maintenance, reducing the maintenance cost and workload of the device.

[0019] 3. By using closed components in conjunction with heat exchangers, the flow area can be adaptively adjusted according to heat exchange requirements. Combined with heat transfer components, the heat accumulated at the back of the cabinet can be continuously discharged, further improving the efficiency and stability of heat exchange, ensuring the long-term stable cooling effect of the device, slowing down the aging rate of precision electronic components, extending the service life of core network equipment, and reducing the probability of equipment failure and downtime.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein, Figure 1 This is a schematic diagram of a network cabinet back-end cooling device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the cleaning component structure of a network cabinet back-end cooling device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the heat transfer component structure of a network cabinet back-end cooling device according to an embodiment of the present invention. Figure 4 This is a cross-sectional view of a network cabinet back-end cooling device according to an embodiment of the present invention. Figure 5 A network cabinet back-end cooling device according to an embodiment of the present invention. Figure 4 A magnified structural diagram at point A; Figure 6 This is a schematic diagram of the windproof mechanism of a network cabinet back-end cooling device according to an embodiment of the present invention; Figure 7 A network cabinet back-end cooling device according to an embodiment of the present invention. Figure 6 A magnified structural diagram at point B; Figure 8 This is a schematic diagram of the transmission assembly structure of a network cabinet back-end cooling device according to an embodiment of the present invention; Figure 9 A network cabinet back-end cooling device according to an embodiment of the present invention. Figure 8 A magnified structural diagram at point C.

[0022] Reference numerals: 1. Heat exchanger; 2. Cabinet; 3. Cleaning assembly; 31. Electric slide; 32. Scraper; 33. Brush; 4. Heat transfer assembly; 41. Fixing frame; 42. Heat transfer tube; 5. Closing assembly; 51. First limiting post; 52. First spring; 53. Fixing plate; 54. Closing plate; 6. Heat sink; 7. Windproof mechanism; 71. Adaptive switch assembly; 711. Second limiting post; 712. Second spring; 72. Louvered fan blade; 73. Synchronization assembly; 731. Transmission rod; 732. Gear; 733. Rotating rod; 734. Mounting plate; 735. Motor; 8. Transmission assembly; 81. Connecting block; 82. Transmission block; 83. Fixing bolt. Detailed Implementation

[0023] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings.

[0024] Throughout, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0025] The following describes an embodiment of a network cabinet back-end cooling device according to the accompanying drawings.

[0026] like Figures 1-9As shown, an embodiment of the present invention provides a network cabinet backend cooling device, which includes a heat exchanger 1, a cabinet 2, a cleaning component 3, a heat transfer component 4, a closing component 5, a heat dissipation plate 6, and a windproof mechanism 7.

[0027] The cabinet 2 is installed on the outer wall of the heat exchanger 1, the heat sink 6 is installed on the outer wall of the heat exchanger 1 away from the cabinet 2, the cleaning component 3 is installed on the outer wall of the heat sink 6, the heat transfer component 4 is installed on the outer wall of the heat exchanger 1 near the cabinet 2, the closing component 5 is installed on the inner wall of the heat exchanger 1, and the windproof mechanism 7 includes an adaptive switch component 71, a louvered fan blade 72, a synchronization component 73, and a transmission component 8.

[0028] The adaptive switch assembly 71 is installed on the outer wall of the heat sink 6 near the cabinet 2, the louvered fan blades 72 are installed on the outer wall of the heat sink 6 near the cabinet 2 via the adaptive switch assembly 71, the synchronization assembly 73 is installed at the bottom of the louvered fan blades 72, and the transmission assembly 8 is installed on the louvered fan blades 72.

[0029] like Figure 4 , Figure 6 and Figure 7 As shown, in one embodiment of this application, the adaptive switch assembly 71 includes a second limiting post 711 and a second spring 712.

[0030] The second limiting post 711 is fixed to the outer wall of the heat sink 6 near the cabinet 2, one end of the second spring 712 is fixed to the outer wall of the heat sink 6 near the cabinet 2, and the louvered fan blade 72 is connected to the other end of the second spring 712.

[0031] It should be noted that the second spring 712 described in this embodiment is made of nickel-titanium shape memory metal, which can maintain a preset elastic force at room temperature. When heat accumulates inside the cabinet, causing the ambient temperature to rise, the second spring 712 made of nickel-titanium shape memory metal will deform and contract, thereby pulling the second limit post 711 to move. Simultaneously, it drives the transmission component 8 to trigger the rotating rod to rotate, automatically opening all the louvered fan blades 72, increasing the ventilation cross-sectional area of ​​the heat dissipation channel, and accelerating the heat exhaust rate. When the temperature inside the cabinet drops to the set range, the second spring 712 returns to its original shape, and the louvered fan blades 72 automatically retract to reduce the ventilation opening, preventing a large amount of external dust from entering the cabinet 2, thus achieving adaptive temperature control ventilation.

[0032] like Figure 4 , Figure 6 and Figure 7 As shown, in one embodiment of this application, the synchronization component 73 includes a transmission rod 731, a gear 732, a rotating rod 733, a mounting plate 734, and a motor 735.

[0033] The transmission rod 731 is installed inside the louvered fan blade 72, the gear 732 is sleeved on the outer wall of the transmission rod 731, the rotating rod 733 is meshed with the gear 732, the mounting plate 734 is installed at the bottom of the louvered fan blade 72, and the motor 735 is installed on the mounting plate 734.

[0034] like Figure 8 and Figure 9 As shown, in one embodiment of this application, the transmission assembly 8 includes a connecting block 81, a transmission block 82, and a fixing bolt 83.

[0035] The connecting block 81 is installed outside the rotating rod 733, the transmission block 82 is installed on the connecting block 81, and the fixing bolt 83 is installed on the transmission block 82. The fixing bolt 83 passes through the transmission block 82 and is connected to the connecting block 81.

[0036] like Figure 2 As shown, in one embodiment of this application, the cleaning component 3 includes an electric slide 31, a scraper 32, and a brush 33.

[0037] Among them, the electric slide 31 is installed on the outer wall of the heat sink 6, the scraper 32 is installed on the moving block of the electric slide 31, and the brush 33 is installed on the outer wall of the scraper 32.

[0038] like Figure 3 As shown, in one embodiment of this application, the heat transfer assembly 4 includes a mounting bracket 41 and a heat transfer tube 42.

[0039] The mounting bracket 41 is installed on the outer wall of the heat sink 6 near the cabinet 2, and the heat transfer pipe 42 is installed inside the mounting bracket 41.

[0040] It should be noted that the heat transfer pipe 42 described in this embodiment is a copper pipe. Copper pipe has good thermal conductivity and can guide the heat accumulated at the back panel of the equipment at the rear of the cabinet 2 to the heat dissipation plate 6 set on the outside of the cabinet 2. The heat is dissipated outward through the heat dissipation plate. At the same time, when the heat exchanger 1 is working, it can continuously reduce the temperature of the circulating heat transfer medium in the heat transfer pipe 42.

[0041] like Figure 5 As shown, in one embodiment of this application, the closing component 5 includes a deformation component 51, a fixing plate 52, and a closing plate 53.

[0042] The deformation component 51 is disposed on the inner wall of the heat exchanger 1, and two fixing plates 52 are provided. The two fixing plates 52 are respectively installed on the inner wall of the heat exchanger 1 through the deformation component 51, and the closing plate 53 is fixed to the bottom wall of the two fixing plates 52.

[0043] like Figure 5 As shown, in one embodiment of this application, the deformation component 51 includes a first limiting post 511 and a first spring 512.

[0044] There are two first limiting posts 511, which are fixed to the inner wall of the heat exchanger 1. There are two first springs 512, which are respectively sleeved on the outside of the corresponding first limiting posts 511, and one end of the two first springs 512 is fixed to the inner wall of the heat exchanger 1. The two fixing plates 52 are respectively connected to the other end of the corresponding first springs 512.

[0045] It should be noted that the first spring 512 in this embodiment is made of nickel-titanium shape memory metal. When the internal temperature of the heat exchanger rises to a preset threshold, the first spring 512 made of nickel-titanium shape memory metal will deform and elongate due to heat, pushing the two fixed plates 52 to drive the closing plate 53 to move along the first limiting post 511 towards the outer wall of the heat exchanger 1, thereby opening the louvered fan blades 72. When the temperature drops below the preset threshold, the first spring 512 returns to its initial contracted length, driving the fixed plates 52 and the closing plate 53 to reset and close the heat dissipation duct again.

[0046] Working Principle: When power is off or interrupted, and it is necessary to prevent cold air from entering the cabinet, the second spring 712, made of nickel-titanium shape memory metal, maintains its initial extension at low temperatures, keeping the louvers 72 closed. This blocks cold air from entering the cabinet, preventing condensation from forming on the network equipment due to excessive temperature differences. This prevents condensation from corroding circuit components and causing short circuits, ensuring the stability of equipment operation. When heat accumulates at the rear of the cabinet for a long time and the internal temperature gradually rises, reaching the preset deformation temperature of the second spring 712, the second spring 712 contracts and deforms due to the temperature, pulling the second limit post 711 to move. This, in turn, drives the transmission component 8. The transmission component 8 triggers the rotating rod 733 in the synchronization component 73 to rotate. Through the cooperation of the gear 732 and the transmission rod 731, all the louvers 72 rotate synchronously and open, increasing the ventilation cross-sectional area at the rear of the cabinet. At this time, the hot air inside the cabinet can be quickly exhausted through the opened vents. When powered on, the air can be directly... The starting motor 735 directly drives the rotating rod 733 to rotate, which in turn drives the gear 732 to rotate, thereby rotating the transmission rod 731 and driving the transmission component 8 to rotate all the louvered fan blades 72 synchronously and open. This, combined with the copper heat transfer tubes 42 in the heat transfer component 4, continuously conducts the heat accumulated at the rear of the cabinet to the outer heat sink 6 for dissipation. Simultaneously, the heat exchanger 1 continuously operates, reducing the temperature of the circulating heat transfer medium inside the heat transfer tubes 42, further improving heat absorption and conduction efficiency. This triple heat dissipation effect quickly lowers the temperature at the rear of the cabinet, preventing heat buildup from affecting equipment operation. Once the temperature drops to a preset safe range, the second spring 712 returns to its initial position, causing the louvered fan blades 72 to close again, reducing the ventilation opening. This maintains temperature stability while minimizing the amount of external dust entering the cabinet. The cleaning component 3 in this device periodically moves the scraper 32 and brush 33 along the surface of the heat sink 6 via the electric slide 31, scraping away accumulated dust and preventing dust buildup from reducing the heat sink's heat conduction and dissipation efficiency, ensuring the long-term heat dissipation stability of the device.

[0047] In the description of this specification, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In the description of this specification, the 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 the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. 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 different embodiments or examples.

[0049] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A cooling device for the back end of a network cabinet, characterized in that, It includes a heat exchanger (1), a cabinet (2), a cleaning assembly (3), a heat transfer assembly (4), a closing assembly (5), a heat sink (6), and a windproof mechanism (7), among which, The cabinet (2) is installed on the outer wall of the heat exchanger (1); The heat sink (6) is installed on the outer wall of the heat exchanger (1) on the side away from the cabinet (2); The cleaning component (3) is disposed on the outer wall of the heat sink (6); The heat transfer component (4) is disposed on the outer wall of the heat exchanger (1) near the cabinet (2); The closing component (5) is disposed on the inner wall of the heat exchanger (1); The windproof mechanism (7) includes an adaptive switching assembly (71), louvered fan blades (72), a synchronization assembly (73), and a transmission assembly (8), wherein, The adaptive switch assembly (71) is disposed on the outer wall of the heat sink (6) near the cabinet (2); The louvered fan blades (72) are mounted on the outer wall of the heat sink (6) near the cabinet (2) via the adaptive switch assembly (71); The synchronization component (73) is disposed at the bottom of the louvered fan blades (72); The transmission assembly (8) is disposed on the louvered fan blade (72).

2. The network cabinet back-end cooling device according to claim 1, characterized in that, The adaptive switch assembly (71) includes a second limiting post (711) and a second spring (712), wherein, The second limiting post (711) is fixed to the outer wall of the heat sink (6) near the cabinet (2); One end of the second spring (712) is fixed to the outer wall of the heat sink (6) near the cabinet (2), and the louvered fan blade (72) is connected to the other end of the second spring (712).

3. The network cabinet back-end cooling device according to claim 1, characterized in that, The synchronization component (73) includes a transmission rod (731), a gear (732), a rotating rod (733), a mounting plate (734), and a motor (735), wherein, The transmission rod (731) is installed inside the louvered fan blades (72); The gear (732) is sleeved on the outer wall of the transmission rod (731); The rotating rod (733) is meshed with the gear (732); The mounting plate (734) is installed at the bottom of the louvered fan blades (72); The motor (735) is mounted on the mounting plate (734).

4. The network cabinet back-end cooling device according to claim 3, characterized in that, The transmission assembly (8) includes a connecting block (81), a transmission block (82), and a fixing bolt (83), wherein, The connecting block (81) is installed on the outside of the rotating rod (733); The transmission block (82) is mounted on the connecting block (81); The fixing bolt (83) is installed on the transmission block (82), and the fixing bolt (83) passes through the transmission block (82) and is connected to the connecting block (81).

5. A network cabinet back-end cooling device according to claim 1, characterized in that, The cleaning assembly (3) includes an electric slide (31), a scraper (32), and a brush (33), wherein, The electric slide (31) is installed on the outer wall of the heat sink (6); The scraper (32) is mounted on the moving block of the electric slide (31); The brush (33) is mounted on the outer wall of the scraper (32).

6. The network cabinet back-end cooling device according to claim 1, characterized in that, The heat transfer assembly (4) includes a mounting bracket (41) and a heat transfer tube (42), wherein, The mounting bracket (41) is installed on the outer wall of the heat sink (6) near the cabinet (2); The heat transfer tube (42) is installed inside the fixture (41).

7. A network cabinet back-end cooling device according to claim 1, characterized in that, The closing assembly (5) includes a deformation assembly (51), a fixing plate (52), and a closing plate (53), wherein, The deformation component (51) is disposed on the inner wall of the heat exchanger (1); Two fixing plates (52) are provided, and the two fixing plates (52) are respectively installed on the inner wall of the heat exchanger (1) through the deformation component (51); The closing plate (53) is fixed to the bottom wall of the two fixing plates (52).

8. A network cabinet back-end cooling device according to claim 7, characterized in that, The deformation component (51) includes a first limiting post (511) and a first spring (512), wherein, There are two first limiting posts (511), and the two first limiting posts (511) are fixed to the inner wall of the heat exchanger (1); Two first springs (512) are provided. The two first springs (512) are respectively sleeved on the outside of the corresponding first limiting post (511), and one end of the two first springs (512) is fixed to the inner wall of the heat exchanger (1). The two fixing plates (52) are respectively connected to the other end of the corresponding first springs (512).

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