WO2023071021A1

WO2023071021A1 - Heat dissipation apparatus and communication cabinet

Info

Publication number: WO2023071021A1
Application number: PCT/CN2022/080740
Authority: WO
Inventors: 张宁; 李帅; 王标华; 朱永明
Original assignee: 中兴通讯股份有限公司
Priority date: 2021-10-27
Filing date: 2022-03-14
Publication date: 2023-05-04
Also published as: CN216313717U

Abstract

A heat dissipation apparatus (100) and a communication cabinet (200). The heat dissipation apparatus (100) comprises a housing (110) and a heat dissipation pipe (160). The housing (110) is provided with a first air inlet (120) and a first air outlet (130) communicated with the outside, and a second air inlet (140) and a second air outlet (150) communicated with the interior of the communication cabinet (200); the heat dissipation pipe (160) is provided inside the housing (110) and penetrates through the housing (110); two end parts of the heat dissipation pipe (160) are respectively communicated with the first air inlet (120) and the first air outlet (130), and an inner chamber of the heat dissipation pipe (160) forms a first circulation air passage (170); a cavity between the heat dissipation pipe (160) and the housing (110) forms a second circulation air passage (180); the second air inlet (140) and the second air outlet (150) are respectively communicated with the second circulation air passage (180), and the second circulation air passage (180) surrounds the first circulation air passage (170).

Description

Cooling device and communication cabinet

Cross References to Related Applications

This application is based on a Chinese patent application with application number 202122604502.3 and a filing date of October 27, 2021, and claims the priority of this Chinese patent application. The entire content of this Chinese patent application is hereby incorporated by reference into this application.

technical field

The present application relates to the technical field of communication, in particular to a heat dissipation device and a communication cabinet.

Background technique

With the continuous development of communication technology, the integration of communication equipment is getting higher and higher, and the existing communication outdoor cabinets are gradually tending to miniaturization design. The miniaturization of the cabinet makes it have a low-capacity Closer to the user, the cabinet needs to ensure a lower noise level accordingly, so certain requirements are made on the cooling capacity of the cabinet. The heat dissipation method adopted by the existing airtight cabinet is to dissipate the heat inside the cabinet to the outside through the heat dissipation device, but the heat dissipation device of the related art has a small heat dissipation area, resulting in low heat exchange efficiency and low natural heat dissipation capacity of the cabinet. And the processing cost is relatively high, which affects product competitiveness.

Contents of the invention

The application proposes a heat dissipation device and a communication cabinet.

In the first aspect, the embodiment of the present application provides a heat dissipation device, including a casing and a heat dissipation pipe, the casing is provided with a first air inlet and a first air outlet communicating with the outside, and a second an air inlet and a second air outlet; the radiating pipe is arranged inside the casing and runs through the casing, and the two ends of the radiating pipe communicate with the first air inlet and the first air outlet respectively, The inner chamber of the heat dissipation pipe forms a first circulating air passage, the chamber between the heat dissipation pipe and the housing forms a second circulating air passage, and the second air inlet and the second air outlet are respectively connected to The second circulating air duct is connected, and the second circulating air duct surrounds the first circulating air duct.

In a second aspect, the embodiment of the present application provides a communication cabinet, including the heat dissipation device described in the embodiment of the first aspect of the present application.

Additional features and advantages of the application will be set forth in the description which follows, and, in part, will be obvious from the description, or may be learned by practice of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Description of drawings

The accompanying drawings are used to provide a further understanding of the technical solution of the present application, and constitute a part of the specification, and are used together with the embodiments of the present application to explain the technical solution of the present application, and do not constitute a limitation to the technical solution of the present application.

Below in conjunction with accompanying drawing and embodiment the application is further described;

Fig. 1 is a structural schematic diagram of a cooling device in some technical solutions;

Fig. 2 is a structural schematic diagram of another heat dissipation device in some technical solutions;

Fig. 3 is a schematic structural diagram of a heat dissipation device provided by an embodiment of the present application;

Fig. 4 is a top view of a heat sink provided by another embodiment of the present application;

Fig. 5 is a schematic structural diagram of a communication cabinet provided by another embodiment of the present application;

Fig. 6 is a schematic structural diagram of a communication cabinet provided by another embodiment of the present application;

Fig. 7 is a schematic structural diagram of a heat dissipation device provided by another embodiment of the present application;

Fig. 8 is a schematic structural diagram of a communication cabinet provided by another embodiment of the present application;

Fig. 9 is a schematic structural diagram of a communication cabinet provided by another embodiment of the present application;

Fig. 10 is a schematic structural diagram of a communication cabinet provided by another embodiment of the present application;

Fig. 11 is a schematic structural diagram of a communication cabinet provided by another embodiment of the present application;

Fig. 12 is a schematic structural diagram of a communication cabinet provided by another embodiment of the present application;

Fig. 13 is a schematic structural diagram of a communication cabinet provided by another embodiment of the present application;

Fig. 14 is a schematic structural diagram of a communication cabinet provided by another embodiment of the present application.

Detailed ways

This part will describe the specific embodiment of the application in detail. The preferred embodiment of the application is shown in the accompanying drawings. Each technical feature and overall technical solution of the application, but it should not be understood as a limitation on the protection scope of the application.

In the description of the present application, several means one or more, and multiple means two or more. Greater than, less than, exceeding, etc. are understood as not including the original number, and above, below, within, etc. are understood as including the original number. If the description of the first and second is only for the purpose of distinguishing the technical features, it cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features relation.

In the description of this application, unless otherwise clearly defined, words such as setting, installation, and connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in this application in combination with the specific content of the technical solution.

Embodiments of the present application provide a heat dissipation device and a communication cabinet, which can increase a heat exchange area and help improve heat dissipation efficiency.

The embodiments of the present application will be further described below in conjunction with the accompanying drawings.

Due to the increasingly tight land resources in cities, the existing outdoor communication cabinets tend to be installed on poles and walls, which leads to the need for miniaturization of the communication cabinets. The miniaturization of the cabinets makes them have low-capacity business configurations. As a result, it needs to be closer to the user, and accordingly the cabinet needs to ensure a small noise level, thus limiting the wanton use of the fan, and making certain requirements for the cooling efficiency of the cabinet.

Referring to Figure 1 and Figure 2, ● in the figure indicates the outer circulation channel, and × indicates the inner circulation channel. The heat dissipation method adopted by the existing low-power airtight cabinets is to dissipate the heat inside the cabinet to the outside through the cooling device, and on the outer circulation side Usually adopt the mode of natural heat dissipation, the structure of heat dissipation device of related art has the following defects: 1, the heat dissipation area of heat dissipation device is small, as shown in Figure 1, under the situation of definite size of heat dissipation device, the increase of heat dissipation area can strengthen heat dissipation, but The increase of the heat dissipation area means that the size of the heat dissipation air duct is reduced, and the reduction of the size of the heat dissipation air duct leads to the problem of low natural heat dissipation efficiency. 2. The heat exchange efficiency of the heat dissipation device is low, as shown in Figure 2, due to the uneven air intake of each heat exchange air channel of the heat dissipation device, the problem of low heat exchange efficiency between cold and heat is caused.

As shown in Figures 3 to 5, the embodiment of the first aspect of the present application provides a heat dissipation device 100, including a housing 110 and a heat dissipation pipe 160, and the housing 110 is provided with a first air inlet 120 and a first air outlet communicating with the outside world 130, and the second air inlet 140 and the second air outlet 150 communicating with the interior of the communication cabinet 200; the heat dissipation pipe 160 is arranged inside the casing 110 and runs through the casing 110, and the two ends of the heat dissipation pipe 160 are respectively connected to the first air inlet 120 In communication with the first air outlet 130, the inner chamber of the heat dissipation pipe 160 forms a first circulating air duct 170, and the chamber between the heat dissipation pipe 160 and the casing 110 forms a second circulating air duct 180, and the second air inlet 140 and the second The air outlets 150 communicate with the second circulating air duct 180 respectively, and the second circulating air duct 180 surrounds the first circulating air duct 170 .

In this embodiment, by setting the heat dissipation pipe 160 through the casing 110, and the casing 110 is provided with a first air inlet 120 and a first air outlet 130 communicating with the outside world, the two ends of the heat dissipation pipe 160 are respectively connected to the first The air inlet 120 communicates with the first air outlet 130, so that the inner chamber of the heat dissipation pipe 160 forms a first circulating air duct 170 communicating with the outside world, and the casing 110 is also provided with a second air inlet 140 and The second air outlet 150, the chamber between the cooling pipe 160 and the housing 110 forms a second air circulation channel 180, the second air inlet 140 and the second air outlet 150 communicate with the second air circulation channel 180, which can realize the communication cabinet 200 inside the air for heat exchange, all the space outside the heat pipe 160 is the second circulating air duct 180, so that the area of the second circulating air duct 180 is large enough, that is, the heat dissipation area is large, and the second circulating air duct 180 surrounds the second circulating air duct 180. Around the first circulating air duct 170, the hot air of the second circulating air duct 180 can surround the cold air of the first circulating air duct 170. This structure can effectively increase the heat exchange area and improve the heat exchange efficiency. The first circulating air duct 170 The way of natural heat dissipation is adopted, and the ability of natural heat dissipation of the heat dissipation device 100 is enhanced by making the heat dissipation pipe 160 pass through the casing 110 and communicate with the outside world.

As shown in Figures 3 and 4, different from the structures in Figures 1 and 2 above, the heat sink 100 of the embodiment of the present application can effectively use the space inside the housing 110, and ensure sufficient Large heat dissipation area, the heat dissipation pipe 160 runs through the shell 110, and the internal chamber serves as an air duct for the flow of external air, which ensures high efficiency of natural heat dissipation. The second circulating air duct 180 is arranged around the first circulating air duct 170 in a surrounding shape , the effective contact area between the hot air inside the communication cabinet 200 and the heat exchange wall is increased, which can ensure sufficient heat exchange between the cold and hot air and improve heat exchange efficiency. In addition, the heat dissipation device 100 provided in this embodiment can be used without additional heat exchange components Under the premise of improving the heat dissipation efficiency, and the processing is not limited to special tools and processes, the structure is simple, and the production cost can be effectively reduced compared with the heat dissipation device 100 with the same heat dissipation capacity.

As shown in FIG. 5 , the thick arrow in the figure indicates the wind direction of the first circulating air duct 170 , and the thin arrow indicates the wind direction of the second circulating air duct 180 . It should be noted that the first air inlet 120 and the first air outlet 130 are arranged at different heights of the casing 110 , for example, the first air inlet 120 may be arranged at the bottom of the casing 110 , and the first air outlet 130 may be arranged at the top of the casing 110 The external cold air enters the internal chamber of the heat dissipation pipe 160 from the first air inlet 120, and is discharged from the first air outlet 130 after passing through the first air circulation channel 170 for heat exchange. The wind direction in the first air circulation channel 170 is from bottom to top, which can It is understood that the wind direction of the first circulating air duct 170 may also be from top to bottom.

It should be noted that the second air inlet 140 and the second air outlet 150 are arranged at different heights of the housing 110, and the second air inlet 140 and the second air outlet 150 are located near the communication cabinet 200 where the cooling device 100 is installed— On the side, for example, the second air inlet 140 can be arranged on the upper part of the side wall of the casing 110, and the second air outlet 150 can be arranged on the lower part of the side wall of the casing 110. The inside of the casing 110 is a hollow structure, and the hot air inside the communication cabinet 200 enters from the second The tuyere 140 enters the inside of the shell 110, exchanges heat through the second air circulation channel 180, and then discharges from the second air outlet 150. Since the heat dissipation pipe 160 runs through the shell 110, the hot air can circulate around the first air circulation channel 170 for heat exchange. The wind direction in the secondary circulation air duct 180 may be clockwise or counterclockwise.

Since the heat sink 100 is provided with a tubular air duct that communicates with the outside world, it can make the air flow more smoothly, thereby speeding up the efficiency of natural heat dissipation. The pipe body is not specifically limited in the embodiment of the present application.

As shown in FIG. 3 , FIG. 4 and FIG. 6 , in the above-mentioned heat dissipation device 100 , there are multiple heat dissipation pipes 160 , and the plurality of heat dissipation pipes 160 are independently arranged inside the housing 110 .

In this embodiment, a plurality of heat dissipation pipes 160 run through the entire housing 110. By arranging a plurality of heat dissipation pipes 160, a plurality of first circulating air ducts 170 can be formed, and the plurality of heat dissipation pipes 160 are arranged independently of each other, which can increase heat exchange. The contact area is conducive to improving the heat dissipation efficiency.

It should be noted that the plurality of radiating pipes 160 being independent from each other means that the plurality of first circulating air ducts 170 formed inside the plurality of radiating pipes 160 are independent of each other, and the plurality of radiating pipes 160 can be distributed inside the casing 110 at intervals, or adjacent to each other. The outer walls of the heat dissipation pipes 160 are closely attached to each other.

It should be noted that the plurality of heat dissipation pipes 160 can be arranged according to actual needs, for example, arranged in a single row or in multiple rows in the inner chamber of the housing 110 to increase the area of the heat dissipation channel. In addition, the shapes and sizes of the plurality of heat dissipation pipes 160 may be inconsistent. For example, the diameter of the heat dissipation pipes 160 arranged near the inner wall of the housing 110 may be larger than the diameter of the heat dissipation pipes 160 arranged in the middle of the inner chamber, so as to facilitate the flow of hot air in the housing. 110 and flows around the first circulating air duct 170 in the inner chamber.

As shown in FIGS. 3 and 5 , in the heat sink 100 described above, the casing 110 includes an upper baffle 111 , a lower baffle 112 , and side wall baffles 113 respectively connecting the upper baffle 111 and the lower baffle 112 . The plate 111 , the lower baffle 112 , the side wall baffle 113 and the outer wall of the heat dissipation pipe 160 jointly define a second circulating air duct 180 .

In this embodiment, a heat dissipation pipe 160 is provided inside the housing 110, and the upper baffle 111, the lower baffle 112, the side wall baffle 113 and the outer wall of the heat dissipation pipe 160 can jointly define a second circulating air duct 180, Through the upper baffle 111 , the lower baffle 112 and the side wall baffle 113 jointly forming the inner surface of the housing 110 , the second circulating air duct 180 can be made more airtight.

As shown in FIGS. 3 to 5 , it should be noted that the first air inlet 120 can be arranged on the lower baffle 112 , the first air outlet 130 can be arranged on the upper baffle 111 , and the second air inlet 140 can be arranged on the side wall baffle 113 The upper part of the communication cabinet 200, the second air outlet 150 is set at the lower part of the side wall baffle 113, then the cold air in the first circulating air duct 170 flows upwards from the bottom, and the hot air inside the communication cabinet 200 enters the second air circulating duct from the second air inlet 140 After 180°, the hot and cold air around the first circulating air duct 170 performs heat exchange, and then flows to the second air outlet 150 in a counterclockwise direction, which can fully contact the wall surface of the heat dissipation pipe 160 to ensure sufficient heat exchange.

It can be understood that the first air inlet 120 and the first air outlet 130 can be arranged at different height positions of the side wall baffle 113, so that the wind direction of the first circulating air duct 170 can be clockwise or counterclockwise, The embodiment of the present application does not limit the arrangement positions of the first air inlet 120 , the first air outlet 130 , the second air inlet 140 and the second air outlet 150 , and those skilled in the art can set them according to the actual situation.

As shown in FIG. 3 , FIG. 5 and FIG. 6 , the above-mentioned heat dissipation device 100 further includes a plurality of spoilers 190 disposed inside the casing 110 , and the plurality of spoilers 190 are arranged along the extending direction of the heat pipe 160 , Two adjacent spoilers 190 are respectively fixed on different sides inside the casing 110 .

In this embodiment, by arranging a plurality of baffles 190 inside the housing 110, and the baffles 190 are arranged along the extending direction of the heat dissipation pipe 160, the hot air entering the second circulating air duct 180 can dissipate heat more evenly and laterally. The tube 160 increases the heat exchange between hot air and cold air. Two adjacent spoilers 190 are respectively fixed on different sides inside the shell 110, so that the second circulating air duct 180 is S-shaped, thereby forming a clear second circulating air duct 180 , to improve the heat exchange efficiency per unit volume in the heat sink 100 .

As shown in FIGS. 3 and 6 , it should be noted that the spoiler 190 is evenly spaced and fixed on the inner side of the housing 110 along the extending direction of the heat dissipation pipe 160 . The turbulent flow can be increased under the action of the turbulence, and the adjacent spoiler 190 in the opposite direction can be flowed sequentially, which can prolong the flow path of the hot air, thereby greatly improving the heat dissipation efficiency.

As shown in Figure 7, different from the two adjacent spoilers 190 located on different sides of the housing 110 in Figure 3, this embodiment only requires any two spoilers 190 to be located on different sides of the housing 110, for example , as shown in FIG. 7 , a first spoiler 191 , a second spoiler 192 , a third spoiler 193 , a fourth spoiler 194 and a fifth spoiler are respectively arranged along the extending direction of the heat pipe 160 195, wherein the second spoiler 192 is arranged on the left side inside the shell 110, and the first spoiler 191, the third spoiler 193, the fourth spoiler 194 and the fifth spoiler 195 are all set inside the shell 110 The right side can also extend the hot air flow path. It can be understood that at least two spoilers 190 are located on different sides inside the casing 110, which can greatly improve heat dissipation efficiency.

It should also be noted that the length of the spoiler 190 is at least half of the length of the casing 110, and the width of the spoiler 190 is equal to the width of the casing 110, which can increase the contact area between the hot air and the heat exchange wall of the heat dissipation pipe 160, thereby making the heat When the wind flows through the second circulating air channel 180 , it can better exchange heat with the first circulating air channel 170 . In addition, the multiple spoilers 190 may have the same size or different sizes, which is not specifically limited in this embodiment of the present application.

In the heat dissipation device 100 described above, the spoiler 190 is provided with a limiting hole, and the heat dissipation pipe 160 is passed through the limiting hole.

In this embodiment, a limit hole is dug at the position where the spoiler 190 corresponds to the heat dissipation pipe 160, and the heat dissipation pipe 160 is pierced through the limit hole, which can limit the displacement of the heat dissipation pipe 160 in the left and right directions, so that the heat dissipation pipe 160 The placement is more stable.

It should be noted that the shape of the limiting hole matches the shape of the heat dissipation pipe 160 , and the limiting hole may be a circular hole or a square hole.

Specifically, when the heat sink 100 of the embodiment of the present application is produced and processed, it only needs to use an independent long tube to penetrate the shell 110, and the shell 110 is provided with the first air inlet 120 and the first The air outlet 130 makes the inner chamber of the heat dissipation pipe 160 a passage for the flow of external air, and the second air inlet 140 and the second air outlet 150 connected to the inside of the cabinet are provided on the casing 110, so that all spaces outside the heat dissipation pipe 160 Both are the second circulating air duct 180. This structure is easy to process and is not limited to special tools and processes, which can reduce production costs and effectively improve production efficiency.

It should be noted that the upper and lower ports of the heat dissipation pipe 160 are welded and fixed to the housing 110 and sealed with glue, which can enhance the stability of the connection of the heat dissipation pipe 160. In addition, the glue filling board is added to ensure that the port has enough glue filling area.

In the above heat dissipation device 100, the inner wall or the outer wall of the heat dissipation pipe 160 is provided with a fin structure.

In this embodiment, under a certain pipe diameter, by adding a fin structure on the inner or outer wall of the heat dissipation pipe 160, the heat exchange area of the heat dissipation pipe 160 can be increased, thereby improving the heat dissipation efficiency.

In the above heat dissipation device 100 , a guide fan for driving air flow is further included, and the guide fan is arranged inside the first circulating air duct 170 or the second circulating air duct 180 .

In this embodiment, a guide fan is arranged inside the first circulating air duct 170 or the second circulating air duct 180, and when the air enters the first circulating air duct 170 or the second circulating air duct 180, the guide fan can Drive the air to flow in an orderly manner in the air duct, greatly increase the flow velocity of the air in the air duct, avoid the accumulation of air flow, reduce the resistance of air flow, and at the same time make the air have better air outlet efficiency, which is conducive to improving the heat exchange efficiency of the cooling device 100 .

It should be noted that the guide fan can be arranged at different heights of the first circulating air duct 170 or the second circulating air duct 180. On the upper part of the duct 170, if the wind direction of the first circulating air duct 170 is from bottom to top, the air in the first circulating air duct 170 can be discharged to the outside quickly, and the natural heat dissipation capability of the heat sink 100 is greatly improved. The guide fan can also be arranged on the lower part of the side wall of the casing 110, and is located near the second air outlet 150, so that the air after heat exchange can be driven to flow out of the second air outlet 150, that is, to the inside of the communication cabinet 200, so as to realize heat dissipation . Those skilled in the art may arrange the guide fan at different positions of the heat dissipation device 100 according to actual requirements. It should be understood that the embodiment of the present application does not limit the arrangement position of the guide fan.

It should be noted that the guide fan may be an axial fan or a centrifugal fan, and those skilled in the art may select different types of guide fans according to actual conditions, which are not specifically limited in this embodiment of the present application.

The embodiment of the second aspect of the present application further provides a communication cabinet 200, including the heat dissipation device 100 in the above embodiment.

As shown in FIG. 3 , FIG. 5 and FIG. 6 , in the communication cabinet 200 provided in this embodiment, a heat dissipation device 100 is provided. The heat dissipation device 100 includes a casing 110 and a heat dissipation pipe 160 . , and the shell 110 is provided with a first air inlet 120 and a first air outlet 130 communicating with the outside world, and the two ends of the heat dissipation pipe 160 communicate with the first air inlet 120 and the first air outlet 130 respectively, so that the heat dissipation pipe The inner chamber of 160 forms a first circulating air duct 170 communicating with the outside world, and the housing 110 is also provided with a second air inlet 140 and a second air outlet 150 communicating with the inside of the communication cabinet 200, and the heat pipe 160 and the housing 110 The chamber forms a second air circulation channel 180, and the second air inlet 140 and the second air outlet 150 communicate with the second air circulation channel 180, which can realize heat exchange for the air inside the communication cabinet 200, and all spaces outside the heat dissipation pipe 160 Both are the second circulating air duct 180, so that the area of the second circulating air duct 180 is large enough, that is, the heat dissipation area is large, and the second circulating air duct 180 is surrounded by the first circulating air duct 170, which can make the second circulating air duct The hot air at 180° surrounds the cold air at the first circulating air duct 170. This structure can effectively increase the heat exchange area and improve the heat exchange efficiency. The first circulating air duct 170 uses natural heat dissipation. And communicate with the outside world, enhancing the natural heat dissipation capability of the heat dissipation device 100 .

It should be noted that the shell 110 of the cooling device 100 is connected to the wall of the cabinet where the cooling device 100 is installed, and the cooling device 100 is detachably installed inside the communication cabinet 200 for easy disassembly and use. The heat sink 100 can also be fixedly installed on the inner wall of the communication cabinet 200, and the shell 110 can be the shell of the communication cabinet 200 itself, and can be produced as an integrated structure, thereby improving production efficiency.

As shown in FIGS. 8 and 9 , in the communication cabinet 200 described above, the communication cabinet 200 is provided with an inner chamber 220 for placing electronic equipment 210 , and the second air inlet 140 and the second air outlet 150 communicate with the inner chamber 220 .

In this embodiment, the second air inlet 140 and the second air outlet 150 of the cooling device 100 are connected to the inner cavity 220, and after the hot air in the inner cavity 220 of the communication cabinet 200 enters the second circulating air duct 180 from the second air inlet 140, After exchanging heat with the first circulating air duct 170 , it returns to the inner cavity 220 from the second air outlet 150 , so that the electronic equipment 210 installed inside the communication cabinet 200 can effectively dissipate heat.

As shown in FIG. 8 and FIG. 9 , in the above-mentioned communication cabinet 200 , the inner chamber 220 is provided with a first fan 230 for driving air flow.

In this embodiment, since the inner cavity 220 of the communication cabinet 200 is provided with the electronic equipment 210, by setting the first fan 230 in the inner cavity 220, the flow of air can be driven, so that the hot air can be blown to the second circulating air duct 180 or the After the heat exchange, the cold air is blown to the inner chamber 220, which is beneficial to improve the heat exchange efficiency.

It should be noted that, as shown in FIG. 8 , the first fan 230 can be arranged on the top of the communication cabinet 200 and near the second air inlet 140 , so that the hot air in the inner cavity 220 can be driven into the second circulation through the second air inlet 140 The air duct 180 continuously takes away heat from the inner cavity 220 to realize heat dissipation. In addition, as shown in FIG. 9 , the first fan 230 may also be disposed at the bottom of the communication cabinet 200 and near the second air outlet 150 .

As shown in Figures 10 to 12, in the above-mentioned communication cabinet 200, the communication cabinet 200 is provided with an air guide duct 240 communicating with the first circulating air duct 170 and the outside world, and the inside of the air guide duct 240 is provided with a second fan 250 .

In this embodiment, the communication cabinet 200 is also provided with an air guide duct 240, and the air guide duct 240 communicates with the first circulating air duct 170 and the outside world respectively. By setting the second fan 250 inside the air guide duct 240, It can greatly increase the air flow rate and further improve the heat dissipation efficiency.

It should be noted that, as shown in FIG. 10 , the second fan 250 can be arranged on the top of the communication cabinet 200, the first air outlet 130 is located on the top of the heat dissipation device 100, and the air flowing through the first circulating air duct 170 flows through the first outlet. After being discharged from the tuyere 130, it flows to the outside under the action of the second fan 250, so as to realize natural heat dissipation. As shown in Figure 11, the second fan 250 can also be arranged at the bottom of the communication cabinet 200, the first air inlet 120 is located at the bottom of the cooling device 100, and the second fan 250 can continuously blow the cold air from the outside to the first air inlet 120, To supplement the air in the first circulating air duct 170, thereby improving the heat exchange efficiency of the cold and hot air. As shown in Figure 12, if a plurality of cooling devices 100 are arranged inside the communication cabinet 200, by arranging a second fan 250 on the top of the communication cabinet 200, the air discharged from the first air outlet 130 can be combined and blown to the outside, thereby Greatly improve the cooling effect.

It should be noted that the first fan 230 and the second fan 250 may be axial fans or centrifugal fans.

As shown in Figure 13 and Figure 14, in the above-mentioned communication cabinet 200, the communication cabinet 200 is provided with a first air guide port 300 communicating with the inner cavity 220 and the outside world or the casing 100 is provided with a second circulating air duct 180 and the outside world. The second air guide port 400.

It should be noted that the communication cabinet 200 is provided with a first air guide port 300 and the heat dissipation device 100 is provided with a second air guide port 400, the first air guide port 300 and the second air guide port 400 communicate with the outside world, and are connected to the second circulating air duct 180, for example, the first air guide 300 can be arranged on the wall of the communication cabinet 200, and the second air guide 400 can be arranged on the casing 100, so that the hot air in the second circulating air duct 180 can exchange heat with the cold air outside, thus effectively improve cooling efficiency.

The embodiment of the present application includes: a cooling device and a communication cabinet. According to the solution provided by the embodiment of the present application, the heat dissipation device includes a casing and a heat dissipation pipe. By setting the heat dissipation pipe through the casing, and the casing is provided with a first air inlet and a first air outlet communicating with the outside world, the two ends of the heat dissipation pipe The parts communicate with the first air inlet and the first air outlet respectively, so that the inner chamber of the heat dissipation pipe forms a first circulating air duct communicating with the outside world, and the shell is also provided with a second air inlet and a second air outlet communicating with the inside of the communication cabinet. The air outlet, the cavity between the cooling pipe and the housing forms a second circulating air duct, the second air inlet and the second air outlet communicate with the second circulating air duct, which can realize heat exchange for the air inside the communication cabinet, and the cooling pipe All the space outside is the second circulating air duct, so that the area of the second circulating air duct is large enough, that is, the heat dissipation area is large, and the second circulating air duct is surrounded by the first circulating air duct, which can make the second circulating air duct The hot air surrounds the cold air in the first circulating air duct. This structure can effectively increase the heat exchange area and improve the heat exchange efficiency. The first circulating air duct adopts a natural heat dissipation method, and the heat dissipation pipe penetrates the shell and communicates with the outside world. , enhancing the natural heat dissipation capability of the cooling device.

The embodiments of the present application have been described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned embodiments. Within the scope of knowledge possessed by those of ordinary skill in the technical field, various modifications can be made without departing from the purpose of the present application. kind of change.

Claims

A cooling device arranged in a communication cabinet, comprising:

a housing, the housing is provided with a first air inlet and a first air outlet communicating with the outside world, and a second air inlet and a second air outlet communicating with the interior of the communication cabinet;

A heat dissipation pipe, the heat dissipation pipe is arranged inside the casing and runs through the casing, the two ends of the heat dissipation pipe communicate with the first air inlet and the first air outlet respectively, and the heat dissipation pipe The inner chamber forms a first circulation air passage, the chamber between the heat dissipation pipe and the outer shell forms a second circulation air passage, and the second air inlet and the second air outlet are respectively connected to the second circulation air passage. The air passage is connected, and the second circulation air passage surrounds the first circulation air passage.
The heat dissipation device according to claim 1, wherein there are multiple heat dissipation pipes, and the plurality of heat dissipation pipes are independently arranged inside the housing.
The heat dissipation device according to claim 1, wherein the housing comprises an upper baffle, a lower baffle, and sidewall baffles respectively connecting the upper baffle and the lower baffle, the upper baffle, the lower baffle The lower baffle, the side wall baffle and the outer wall of the heat dissipation pipe jointly define the second circulating air duct.
The heat dissipation device according to claim 1, further comprising a plurality of baffles arranged inside the housing, a plurality of baffles arranged along the extending direction of the heat pipe, two adjacent The spoilers are respectively fixed on different sides inside the housing.
The heat dissipation device according to claim 4, wherein the spoiler is provided with a limiting hole, and the heat dissipation pipe is passed through the limiting hole.
The heat dissipation device according to claim 1, wherein, the inner wall or the outer wall of the heat dissipation pipe is provided with a fin structure.
The heat dissipation device according to claim 1, further comprising a guide fan for driving air flow, and the guide fan is arranged inside the first circulating air channel or the second circulating air channel.
A communication cabinet, comprising the heat dissipation device according to any one of claims 1-7.
The communication cabinet according to claim 8, wherein the communication cabinet is provided with an inner cavity for placing electronic equipment, and the second air inlet and the second air outlet communicate with the inner cavity.
The communication cabinet according to claim 9, wherein the inner cavity is provided with a first fan for driving air flow.
The communication cabinet according to claim 8, wherein, the communication cabinet is provided with an air guide duct communicating the first circulating air duct with the outside, and a second fan is arranged inside the air guide duct.
The communication cabinet according to claim 9, wherein, the communication cabinet is provided with a first air guide port connecting the inner cavity with the outside world or the casing is provided with a first air guide port connecting the second circulating air duct with the outside world. Two air guides.