Passive heat dissipation type 5G iron tower

Abstract

The invention relates to the field of communication towers, and particularly discloses a passive heat dissipation type 5G iron tower which comprises a tower body and an AAU installed on the tower body and further comprises a heat dissipation system used for conducting heat dissipation on the AAU, and the heat dissipation system comprises a heat exchange part, a liquid inlet flow channel, a backflow flow channel and a pump assembly which are sequentially connected to form a closed-loop pipeline. The heat exchange part is close to the AAU so as to reduce the temperature of the AAU; cooling liquid is arranged in the closed-loop pipeline, and the backflow flow channel is arranged from top to bottom in the height direction of the tower body so that the cooling liquid can be gradually cooled through the height of the tower body.

Description

Technical Field

[0001] The present application relates to the field of communication towers, and in particular to a passive heat dissipation type 5G tower. Background Art

[0002] At present, 5G communication towers are mainly composed of three parts: tower body, AAU (integrated RF module and antenna module) and BBU, among which AAU accounts for a high proportion of energy consumption. As the power of AAU chips continues to increase, the traditional passive heat dissipation method using aluminum heat sinks can no longer meet the heat dissipation requirements.

[0003] Of course, there are some methods that use liquid cooling for heat dissipation, but its liquid cooling requires additional active heat exchangers (compressors, water cooling towers, etc.) to cool the high-temperature coolant after heat exchange. Due to the addition of active heat exchangers, on the one hand, the cost increases, and on the other hand, the active heat exchanger needs to work all the time, resulting in an increase in the energy consumption cost of 5G towers. Summary of the invention

[0004] In order to improve the problem of high energy consumption, the present application provides a passive heat dissipation 5G tower.

[0005] A passive heat dissipation type 5G tower provided in the present application adopts the following technical solution: a passive heat dissipation type 5G tower, comprising a tower body, an AAU installed on the tower body, characterized in that it also includes a heat dissipation system for dissipating heat from the AAU, the heat dissipation system comprising a heat exchange component, a liquid inlet channel, a return channel, and a pump assembly connected in sequence to form a closed-loop pipeline, the heat exchange component is close to the AAU to reduce the temperature of the AAU; a coolant is arranged in the closed-loop pipeline, and the return channel flows from top to bottom along the height direction of the tower body so that the coolant is gradually cooled by the height of the tower body.

[0006] Optionally, the liquid inlet channel is a pipeline structure or a channel opened on the side wall of the tower body, and the reflux channel is a pipeline structure or a channel opened on the side wall of the tower body.

[0007] Optionally, the recirculation channel is at least partially of a spiral structure.

[0008] Optionally, the tower height is not less than 15m.

[0009] Optionally, the tower body is a hollow structure, with an air outlet at the top and an air inlet at the bottom.

[0010] Optionally, the reflux channel includes a diversion section, a convergence section, and a connecting section. The diversion section is arranged along the tower body from top to bottom, and multiple diversion sections are arranged along the circumferential direction of the tower body. The convergence section is located at the bottom of the tower body. The outlets of multiple diversion sections are all connected to the convergence section, and the cross-sectional area of ​​the convergence section is larger than the cross-sectional area of ​​the reflux channel. The convergence section is connected to a water tank through the connecting section. A turbine is installed in the water tank and / or the connecting section through the rotation of the turbine shaft. When the turbine is in the water tank, it is located below the connecting section so that the turbine rotates when the coolant flows downstream, and fan blades are fixedly installed on the turbine shaft.

[0011] Optionally, a drainage port is provided on the top side wall of the tower body, and unpowered drainage devices are installed at the air outlet and the drainage port.

[0012] Optionally, the unpowered drainage device includes an unpowered hood.

[0013] Optionally, a passive heat dissipation type 5G tower includes a tower body, an AAU installed on the tower body, and a heat dissipation system for dissipating heat from the AAU, the heat dissipation system includes a heat exchange component, a liquid inlet pipe, a return pipe, and a pump assembly that are sequentially connected to form a closed-loop pipeline, the heat exchange component is close to the AAU to reduce the temperature of the AAU; the return pipe extends from the top of the tower to the bottom of the tower, an opening is provided on the tower body, a heat dissipation structure is provided on the return pipe, the heat dissipation structure is located at the opening, and a coolant is provided in the closed-loop pipeline.

[0014] By adopting the above technical solution, the heat of the AAU is taken away by the heat exchange element, so that the AAU can operate at an appropriate temperature, the signal is stable, and the internal electronic components are not easily damaged. After the heat of the AAU is taken away by the heat exchange element, it is quickly dissipated through the heat dissipation structure on the return pipe, and the heat is dissipated to the air through the opening. At the same time, since the return pipe extends from the top of the tower body to the bottom of the tower body, the coolant is further re-cooled by gradually dissipating the heat through the extended path. The re-cooled coolant enters the liquid inlet pipe through the pump assembly, and then enters the heat exchange element, so that the heat exchange element maintains a low temperature state, so that the heat on the AAU can be stably taken away. In the above scheme, there is no need for an additional active heat exchanger (compressor, water cooling tower, etc.) to re-cool the high-temperature coolant coming out of the heat exchange element, which greatly reduces energy consumption.

[0015] Optionally, the opening is an annular opening and divides the tower body into an upper tower body and a lower tower body. The heat dissipation structure includes heat dissipation fins, which connect the upper tower body and the lower tower body. The return pipe is at least partially connected to the heat dissipation fins.

[0016] By adopting the above technical solution, the opening is designed as a ring-shaped opening, and the direct contact area with the air is larger. At the same time, due to the existence of the ring-shaped opening, the tower body is divided into two parts, an upper tower body and a lower tower body. At this time, heat dissipation fins are used to connect the upper tower body and the lower tower body.

[0017] Optionally, the portion where the return pipe is connected to the heat dissipation fins is a spiral structure.

[0018] By adopting the above technical solution, the return pipe is set to a spiral structure, which can be understood as a hollow spring. This method makes the path of the coolant at the opening longer, further improving the heat dissipation effect.

[0019] Optionally, a water tank is fixed at the bottom of the iron tower, the return pipe passes through the water tank, the water tank has an external inlet and an external outlet, and the water tank is buried under the ground.

[0020] By adopting the above technical solution, firstly, the water tank is buried underground, which, on the one hand, reinforces the tower body; on the other hand, the underground temperature is relatively low, and the coolant can exchange heat with the water in the water tank through the return pipe, further reducing the temperature of the coolant.

[0021] Optionally, a mounting frame is fixed on the tower body, and the mounting frame includes an upper connecting ring, a lower connecting ring, and a fixing rod connecting the upper connecting ring and the lower connecting ring, the upper connecting ring and the lower connecting ring are both connected to the tower body through pipes, and the heat exchange element is installed on the fixing rod, the upper connecting ring, the lower connecting ring and the fixing rod are all hollow structures, and the fixing rod is connected to the heat exchange element.

[0022] By adopting the above technical solution, the coolant enters the heat exchange element through the pipe on the upper connecting ring, the upper connecting ring, and the fixed rod, and then flows back from the heat exchange, the fixed rod, the lower connecting ring, and the pipe on the lower connecting ring. Since the lower connecting ring, the fixed rod, and the pipe on the lower connecting ring are all outside the tower body and in direct contact with the air, they will first exchange heat with the air when flowing back.

[0023] Optionally, an air inlet is opened on the side wall of the bottom of the tower body, and an air guide cover is connected to the air inlet, and the cross-section of the air guide cover gradually increases from one end connected to the air inlet to the outside.

[0024] By adopting the above technical solution, the air inlet is set to facilitate the external air to enter the upper stream, accelerate the air flow, and the heat dissipation structure dissipates heat faster. And the expanded air guide cover allows the air to quickly cool down after entering the tower body from the outside.

[0025] Optionally, the battery is installed at the bottom of the inner cavity of the tower body.

[0026] By adopting the above technical solution, the battery is installed at the bottom of the inner cavity of the tower body. When the battery is working and dissipating heat, a heat source is formed, forming a chimney effect and accelerating the upward flow of air.

[0027] Optionally, the heat exchange element includes an upper cover and a lower cover, the upper cover and the lower cover are sealed and connected to form a microchannel, the surface of the upper cover is concave to form a receiving groove, and the AAU is at least partially located in the receiving groove.

[0028] By adopting the above technical solution and forming a receiving groove on the surface of the upper cover body, the heat exchange area with the AAU can be increased and the installation of the AAU can be facilitated.

[0029] Optionally, the tower body is provided with a fan, a solar panel, and a battery, the battery is electrically connected to the solar panel, the battery is electrically connected to the fan, and the solar panel blocks the AAU in a bird's eye view.

[0030] By adopting the above technical solution, the power supply of the fan depends only on the electric energy generated by the solar panel, and the solar panel shields the AAU, which can reduce the heat generated by sunlight.

[0031] A passive heat dissipation type 5G iron tower comprises a tower body, an AAU installed on the tower body, and a heat dissipation system for dissipating heat from the AAU, wherein the heat dissipation system comprises a heat exchange component, a liquid inlet pipe, a return pipe, and a pump assembly which are sequentially connected to form a closed-loop pipeline, wherein the heat exchange component is close to the AAU to reduce the temperature of the AAU; the return pipe extends from the top of the tower to the bottom of the tower, an opening is provided on the tower body, a heat dissipation structure is provided on the liquid inlet pipe, the heat dissipation structure is located at the opening, a coolant is provided in the closed-loop pipeline, a heat concentration area is provided at the bottom of the tower, a heat insulation layer is provided at the portion of the return pipe before the heat concentration area, an air inlet hole is provided at the bottom of the tower body, and the height of the air inlet hole is higher than the heat concentration area.

[0032] By adopting the above technical solution, the return pipe is insulated, so that the high-temperature coolant coming out of the heat exchange element can quickly flow down to the heat concentration area to form a heat source (at this time, the external air enters from the air inlet and opening to form a chimney effect), and then flows up through the pump assembly and the liquid inlet pipe. During the process of the high-temperature coolant flowing up the liquid inlet pipe, the wind accelerated by the chimney effect exchanges heat with the liquid inlet pipe, so that the high-temperature coolant in the liquid inlet pipe is cooled down and finally sent to the heat exchange element.

[0033] In summary, the present application includes at least one of the following beneficial technical effects:

[0034] 1. This application utilizes the height of the tower body to accelerate the air flow inside the tower body, without the need for additional active radiators, and has low cost;

[0035] 2. Set up solar panels to shield the AAU and reduce the heat absorption of the AAU shell itself;

[0036] 3. Rapid heat dissipation through chimney effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Schematic diagram of the overall structure of Example 1 of the present application (annular opening);

[0038] Figure 2 yes Figure 1 A magnified schematic diagram of part A;

[0039] Figure 3 yes Figure 1 A schematic longitudinal section view taken along the center of the tower;

[0040] Figure 4 It is a schematic diagram of the connection between the heat dissipation fins and the upper tower body and the lower tower body;

[0041] Figure 5 A schematic diagram of the liquid inlet pipe and the return pipe in Example 1;

[0042] Figure 6 is a schematic diagram of another opening method in Example 1;

[0043] Figure 7 yes Figure 6 A magnified schematic diagram of part B;

[0044] Figure 8 This is the first arrangement of the fan, solar panel, and battery in Example 1;

[0045] Fig. 9 This is the second arrangement of the fan, solar panel, and battery in Example 1;

[0046] Fig.10 is a simplified diagram in Example 2;

[0047] Fig.11 is a schematic diagram of the connection between the return flow channel and the water tank of Example 3;

[0048] Fig.12 yes Fig.11 A cross-sectional schematic diagram of

[0049] Fig.13 It is a schematic diagram of the connection between the tower body and the unpowered drainage device.

[0050] Figure numerals: 1, tower body; 2, AAU; 3, liquid cooling plate; 4, liquid inlet pipe; 5, return pipe; 6, booster pump; 7, upper connecting ring; 8, lower connecting ring; 9, fixing rod; 10, upper connecting rod; 11, lower connecting rod; 12, first pipeline; 13, second pipeline; 14, opening; 15, U-shaped structure; 16, inner connecting plate; 17, outer connecting plate; 18, connecting column; 19, heat dissipation fin; 20, upper tower body; 21, lower tower body; 22, first reinforcement; 23, second reinforcement Strong part; 24, water tank; 25, external inlet; 26, external outlet; 27, serpentine pipe; 28, wind guide cover; 29, fan; 30, solar panel; 31, battery; 32, ring frame; 33, heat concentration area; 34, non-powered wind hood; 35, L-shaped pipe; 36, wind wheel; 37, fan blade; 38, return flow channel; 39, diversion section; 40, convergence section; 41, connection section; 42, turbine; 43, turbine shaft; 44, fan blade; 42, liquid inlet channel; 43, rotating shaft. DETAILED DESCRIPTION

[0051] The following is combined with Figure 1-10 This application is described in further detail.

[0052] The present application embodiment discloses a passive heat dissipation type 5G tower, such as Figure 1 , including a tower body 1, an AAU 2 mounted on the tower body 1, and a heat dissipation system for dissipating heat from the AAU 2. The heat dissipation system includes a heat exchange component, a liquid inlet pipe 4, a return pipe 5, and a pump assembly that are sequentially connected to form a closed-loop pipeline. The coolant can be water or fluorinated liquid.

[0053] The tower body 1 is generally a steel pipe structure (hollow inside), which can be connected by flange connection or welding. The tower body 1 can form a heat insulation layer on the outer surface, which can be formed by coating reflective material or riveting aluminum foil, or by forming a heat insulation layer outside the tower body 1 with polyurethane foam material.

[0054] like Figure 2 A mounting frame is fixed on the top of the tower body 1, and the AAU2 is fixed to the tower body 1 through the mounting frame. Since the mounting frame in this scheme also plays the role of circulating the coolant, its raw material is mainly a hollow metal tube, generally a stainless steel tube, an aluminum tube, a galvanized iron tube, a copper tube or a composite metal tube. The specific mounting frame includes an upper connecting ring 7, a lower connecting ring 8, a fixing rod 9, an upper connecting rod 10, and a lower connecting rod 11. The upper connecting ring 7 and the lower connecting ring 8 are both connected to the tower body 1 through pipes. For the convenience of distinction, the pipe of the upper connecting ring 7 is called the first pipe 12, and the pipe on the lower connecting ring 8 is called the second pipe 13. Multiple first pipes 12 and second pipes 13 are arranged along the circumferential direction of the tower body 1, and the fixing rod 9 is vertically arranged and fixed to the upper connecting ring 7 and the lower connecting ring 8 at the same time. The upper connecting rod 10 and the lower connecting rod 11 are fixed on the fixing rod 9.

[0055] The liquid inlet and outlet of the heat exchange component are connected to the upper connecting rod 10 and the lower connecting rod 11 respectively. The upper connecting ring 7, the lower connecting ring 8, the fixed rod 9, the upper connecting rod 10 and the lower connecting rod 11 are hollow structures. It should be noted that the fixed rod 9 is divided into two upper and lower chambers, one side of the upper chamber is connected to the upper connecting rod 10, and the other side is connected to the upper connecting ring 7. One side of the lower chamber is connected to the lower connecting rod 11, and the other side of the lower chamber is connected to the cavity. In this way, the coolant can be quickly delivered to the liquid cooling plate 3 through the lower connecting rod 11. In addition, the height of the reflux pipe 5 is low, and the height of the liquid inlet pipe 4 is relatively high, so that the liquid intake is faster and the reflux cooling time is longer.

[0056] In this embodiment, the heat exchange element is a liquid cooling plate 3, which includes an upper cover and a lower cover, which are sealed (welded or provided with a sealing ring) to form a microchannel, and the surface of the upper cover is concave to form a receiving groove, and the AAU2 is partially located in the receiving groove. Another way is to set the heat exchange element as a liquid cooling box, and the AAU2 is immersed in the liquid cooling box or sprayed.

[0057] In the heat dissipation system, the return pipe 5 is connected to the first pipe 12 (the return pipe 5 is connected to the liquid outlet of the liquid cooling plate 3 through the first pipe 12, the upper connecting ring 7, the upper chamber of the fixing rod 9, and the upper connecting rod 10). The return pipe 5 is only connected to the first pipe 12 corresponding to the liquid cooling plate 3. Since three AAU2s are provided in this solution, three corresponding liquid cooling plates 3 are provided, so three first pipes 12 are connected. Only one end of the remaining first pipe 12 is connected to the upper connecting ring 7, and the other end is closed. The liquid inlet pipe 4 is connected to the second pipe 13 (the liquid inlet pipe 4 is connected to the liquid inlet of the liquid cooling plate 3 through the second pipe 13, the lower connecting ring 8, the lower chamber of the fixing rod 9, and the lower connecting rod 11). The liquid inlet pipe 4 is only connected to the second pipe 13 corresponding to the liquid cooling plate 3. Three corresponding liquid cooling plates 3 are provided, so three second pipes 13 are connected, and the lower connecting ring 8 is only connected to the above-mentioned three second pipes 13. The other unconnected first pipes 12 and second pipes 13 are mainly used for connection to enhance the fixing effect of the upper connecting ring 7 and the lower connecting ring 8 .

[0058] like Figure 7, an opening 14 is provided on the tower body 1, and the opening 14 is generally located in the middle or above the middle to ensure the strength of the tower. One way of this embodiment is to provide an opening 14 on one side of the tower body 1, wherein the return pipe 5 is bent at the opening 14, and a heat dissipation structure is provided. The return pipe 5 is partially bent directly to form a U-shaped structure 15 extending out of the opening 14, and a reinforcement structure is provided at the opening 14. The reinforcement structure includes an inner connecting plate 16 and an outer connecting plate 17, the inner connecting plate 16 and the outer connecting plate 17 are similar in shape, the inner connecting plate 16 is closer to the tower body 1, and a connecting column 18 is fixed between the inner connecting plate 16 and the outer connecting plate 17. The heat dissipation structure also includes heat dissipation fins 19, a part of which is fixed to the bottom of the U-shaped structure 15, and another part of which is fixed to the side of the U-shaped structure 15. The liquid inlet pipe 4 is vertically arranged and away from the return pipe 5, and a heat insulation layer is arranged on the outer surface of the liquid inlet pipe 4, and the specific material can be polyurethane, glass fiber, asbestos, rock wool, aerogel felt, vacuum board, etc. When the iron tower is installed, the liquid inlet pipe 4 is arranged in the north. Of course, since the liquid inlet pipe 4 is hidden in the tower body 1, it is convenient to identify the direction, and a mark can be set outside the tower body 1.

[0059] like Figure 1-2 As a more preferred method, the opening 14 is set as an annular opening 14, so that the tower body 1 is divided into an upper tower body 20 and a lower tower body 21. The heat dissipation fins 19 are evenly distributed along the circumference of the tower body 1, and adjacent heat dissipation fins 19 are arranged at intervals. Figure 4 The upper end of the heat dissipation fin 19 is welded and fixed to the lower end surface of the upper tower body 20, and the lower end of the heat dissipation fin 19 is welded and fixed to the upper end surface of the lower tower body 21, and a part of the heat dissipation fin 19 is located outside the tower body 1, and a part is located inside the tower body 1. The part located inside the tower body 1 extends upward to form a first reinforcement part 22 fixed to the inner wall of the upper tower body 20, and extends downward to form a second reinforcement part 23 fixed to the inner wall of the lower tower body 21. At this time, the part where the return pipe 5 is connected to the heat dissipation fin 19 is a spiral structure from top to bottom, and the outer diameter of the spiral is slightly smaller than the inner diameter of the tower body 1.

[0060] like Figure 3 As a more preferred method, a water tank 24 can be installed at the bottom of the tower body 1. During construction, the water tank 24 is buried underground. The water tank 24 can be a prefabricated stainless steel water tank 24, or it can be directly poured with concrete, and a screw is pre-buried on the top of the water tank 24, and connected to the flange at the bottom of the tower body 1 through the screw. At the same time, a part of the tower body 1 is also located under the ground to ensure that the tower body 1 is not easy to shake, and concrete pouring is more preferred here. At this time, the return pipe 5 passes through the water tank 24 and then enters the tower body 1. The pump assembly generally uses a booster pump 6 and is set at the bottom of the tower body 1. Of course, if the tower body 1 is too high, two or more booster pumps 6 can be set to send the cooled coolant into the liquid cooling plate 3 through the liquid inlet pipe 4 in a segmented manner.

[0061] The two ends of the water tank 24 are provided with an external inlet 25 and an external outlet 26, respectively. The external interface can be connected to a tap water pipe, and the external outlet 26 can be connected to an underground drainage network. Generally, it is not necessary to change the water. However, in order to cope with extremely hot weather, an external inlet 25 and an external outlet 26 are provided. The water tank 24 may not even be needed. Figure 5 For further optimization, the portion of the return pipe 5 located in the water tank 24 can be set as a serpentine pipe 27 that bends back and forth, so that the coolant and water can exchange heat for a longer time.

[0062] like Fig. 9 In order to increase the air flow rate in the tower body 1, an air inlet is provided at the bottom of the tower body 1, and an air guide cover 28 is connected to the air inlet. The cross section of the air guide cover 28 gradually increases from the end connected to the air inlet to the outside, similar to a trumpet cover. The setting of the air guide cover 28 can make the hot air inlet quickly cool down.

[0063] like Fig. 9 At the same time, a fan 29, a solar panel 30, and a battery 31 are provided on the tower body 1. The solar panel 30 is located at the top of the tower body 1 and above the AAU2. The solar panel 30 is in the shape of an annular plate structure. The area of ​​the solar panel 30 is larger than that of the AAU2 when viewed from above, so that the AAU2 can be better shielded and the light heat absorption by the AAU2 can be reduced.

[0064] The battery 31 is electrically connected to the solar panel 30, and the battery 31 is electrically connected to the fan 29. There are two main ways to position the battery 31 and the fan 29. The first way is that the fan 29 is at the top of the tower body 1, and the battery 31 is at the bottom of the tower body 1 and below the air inlet. In this way, the battery 31 generates heat when it works, forming a chimney effect, and at the same time, cooperates with the fan 29 at the top to accelerate the air flow rate in the tower body 1, so that the cooling effect of the high-temperature coolant in the return pipe 5 is better.

[0065] like Figure 8 The second method is that the battery 31 is installed outside the tower body 1, the battery 31 is located below the AAU 2 and above the heat dissipation fins 19. The fan 29 is fixed in the annular frame 32, the annular frame 32 is fixed on the tower body 1, and multiple fans 29 are evenly distributed along the circumference of the annular frame 32. In this method, the fan 29 directly blows air to the heat dissipation fins 19 to dissipate heat.

[0066] In this embodiment, all thermal fluid circulation pipelines of a passive heat dissipation 5G tower are provided with filtering devices in the pipelines for filtering impurities in the thermal fluid. The filtering devices are generally filter screens.

[0067] The implementation principle of a passive heat dissipation 5G tower in the embodiment of the present application is as follows: the coolant is fed into the liquid inlet of the liquid cooling plate 3 by the booster pump 6 through the liquid inlet pipe 4, the second pipe 13, the lower connecting ring 8, the lower chamber of the fixing rod 9, and the lower connecting rod 11. After the liquid cooling plate 3 and the AAU2 are heat exchanged, the high-temperature coolant flows into the return pipe 5 from the liquid outlet of the liquid cooling plate 3, and enters the water tank 24 after the heat dissipation of the heat dissipation fins 19 and the return pipe 5 itself, and is cooled again and then re-fed by the booster pump 6. In addition, the air inlet, the battery 31, and the fan 29 are arranged to accelerate the air flow in the tower body 1 as a whole, which is sufficient to ensure that the coolant can be cooled again. And the heat insulation layer outside the tower body 1 reduces the temperature inside the tower body 1.

[0068] Embodiment 2: A passive heat dissipation 5G tower, such as Fig.10 , which is different from Example 1 in that: in this scheme, the reflux pipe 5 is arranged vertically from top to bottom, and the upper end of the second pipe 13 is connected to the reflux pipe 5, and the lower end of the reflux pipe 5 is bent back and forth to form a heat concentration zone 33. An air inlet is provided at the bottom of the tower body 1, and the height of the air inlet is higher than the heat concentration zone 33. The upper end of the liquid inlet pipe 4 is connected to the first pipe 12, the liquid inlet pipe 4 is in a spiral structure at the annular opening 14, and the heat dissipation fins 19 are connected to the liquid inlet pipe 4. The portion of the reflux pipe 5 before the heat concentration zone 33 is provided with a heat insulation layer (that is, a heat insulation layer is provided outside the reflux pipe 5 between the heat concentration zone 33 and the second pipe 13, and no heat insulation layer is provided in the concentration zone and the portion after it), and the heat insulation layer material can refer to the heat insulation layer on the liquid inlet pipe 4 in Example 1. The installation of the battery 31 refers to the first method of Example 1. Of course, the implementation of this scheme will not be affected if the battery 31 is not installed. And the water tank 24 can be eliminated in this scheme.

[0069] The implementation principle of a passive heat dissipation 5G tower in the embodiment of the present application is as follows: the coolant is fed into the liquid inlet of the liquid cooling plate 3 by the booster pump 6 through the liquid inlet pipe 4, the first pipe 12, the upper connecting ring 7, the upper chamber of the fixing rod 9, and the upper connecting rod 10. After the liquid cooling plate 3 and the AAU2 are heat exchanged, the high-temperature coolant flows into the return pipe 5 from the liquid outlet of the liquid cooling plate 3, and is kept warm in the return pipe 5 to the heat concentration area 33, where a heat source is formed, and the chimney effect is used to accelerate the air circulation. The high-temperature coolant is fed back into the liquid inlet pipe 4 through the booster pump 6, and re-enters the liquid inlet of the liquid cooling plate 3 after heat dissipation through the liquid inlet pipe 4 and the heat dissipation fins 19.

[0070] As a more complete solution, in the above embodiment, a temperature sensor and a control center are also required to be set. The temperature sensor can be set at the liquid inlet of the liquid cooling plate 3 to detect whether the coolant after recooling meets the requirements. The temperature sensor, battery 31, fan 29, and boost pump 6 are all electrically connected to the control center.

[0071] Embodiment 3: A passive heat dissipation 5G tower comprises a tower body 1, an AAU 2 installed on the tower body 1, and an insulation layer is arranged on the tower body 1. The tower body 1 is a hollow structure, an air outlet is arranged on the top, a drainage port is opened on the top side wall of the tower body 1, and an air inlet is arranged on the bottom. In this example, the opening 14 may not be provided, but it may be opened for better effect. Unpowered drainage devices are installed at both the air outlet and the drainage port. An unpowered wind cap 34 is installed at the position of the air outlet. An L-shaped pipe 35 is installed at the drainage port, and a wind wheel 36 is installed inside the pipe. A rotating shaft 43 fixed on the wind wheel 36 extends out of the L-shaped pipe 35 and is connected to the fan blade 37. The fan blade 37 is blown by the external air to drive the rotating shaft 43, and the rotating shaft 43 drives the fan wheel 36 to draw the air inside the tower body 1 outward.

[0072] The 5G tower also includes a heat dissipation system for dissipating heat from the AAU2. The heat dissipation system includes a heat exchange component, a liquid inlet channel 42, a return channel 38, and a pump assembly that are sequentially connected to form a closed-loop pipeline. The heat exchange component is close to the AAU2 to reduce the temperature of the AAU2. Coolant is arranged in the closed-loop pipeline, and the return channel 38 flows from top to bottom along the height direction of the tower body 1 so that the coolant is gradually cooled by the height of the tower body 1.

[0073] There are two ways to form the inlet channel and the return channel 38. One is a pipeline structure. For example, in Examples 1 and 2, the inlet channel is the inlet pipe 4, and the return channel 38 is the return pipe 5. Another way is to open a channel on the side wall of the tower body 1. The tower body 1 can also be set as a double-layer structure, and filler is filled between the double layers to form a channel. Of course, the above two ways can be combined. This embodiment is still a pipeline structure. In this solution, heat is mainly dissipated through the return channel 38. In order to extend the heat dissipation time, part or even all of the return channel 38 can be set as a spiral structure.

[0074] In this solution, the reflux channel 38 includes a diversion section 39, a convergence section 40, and a connection section 41. The main body of the diversion section 39 is arranged from top to bottom along the tower body 1, and multiple diversion sections 39 are arranged along the circumferential direction of the tower body 1. The convergence section 40 is located at the bottom of the tower body 1. The bottom of the diversion section 39 is horizontally bent. The outlets of multiple diversion sections 39 are all connected to the convergence section 40, and the cross-sectional area of ​​the convergence section 40 is larger than the cross-sectional area of ​​the reflux channel 38. The convergence section 40 is connected to the water tank 24 through the connection section 41, and the booster pump 6 connects the water tank 24 and the liquid inlet channel 42.

[0075] There are two ways to install the turbine 42. Method 1: The turbine 42 is installed in the water tank 24 through the turbine shaft 43 for rotation. When the turbine 42 is in the water tank 24, it is located below the connecting section 41 so that the turbine 42 rotates when the coolant flows downward. The fan blades 44 are fixedly installed on the turbine shaft 43. At this time, the turbine shaft 43 is horizontally arranged, and the fan blades 44 are aligned with the air inlet position.

[0076] Mode 2: A turbine 42 is rotatably mounted in the connecting section 41 via a turbine shaft 43 , and a fan blade 44 is fixedly mounted on the turbine shaft 43 . In this case, the turbine shaft 43 is vertically arranged and extends out of the connecting section 41 , and the turbine 42 is located above the converging section 40 .

[0077] In actual use, method 1, method 2, or method 1+2 may be selected. This embodiment is a combination of method 1+method 2.

[0078] The coolant is pumped from the water tank 24 into the liquid cooling plate 3 through the liquid inlet channel by the booster pump 6, and then flows out of the liquid cooling plate 3 through the diversion section 39 and the convergence section 40 into the connecting section 41. The worm gear in the connecting section 41 rotates to drive the turbine shaft 43 and the fan blades 44. At the same time, the turbine 42 in the water tank 24 drives the turbine shaft 43 and the fan blades 44 to inhale air from the air inlet.

[0079] Special note: The height of the tower body 1 in the above embodiments 1-3 is generally not less than 15 m, preferably 25-40 m, so that the cooling liquid has enough time to reflux and cool.

[0080] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0081] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0082] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A passive heat dissipation 5G iron tower, comprising a tower body and an AAU installed on the tower body, characterized in that: It also includes a heat dissipation system for dissipating heat from the AAU, the heat dissipation system includes a heat exchange component, a liquid inlet channel, a return channel, and a pump assembly that are sequentially connected to form a closed-loop pipeline, the heat exchange component is close to the AAU to reduce the temperature of the AAU; a coolant is arranged in the closed-loop pipeline, and the return channel runs from top to bottom along the height direction of the tower body so that the coolant is gradually cooled by utilizing the height of the tower body.

2. A passive heat dissipation 5G tower according to claim 1, characterized in that: The liquid inlet channel is a pipeline structure or a channel opened on the side wall of the tower body, and the reflux channel is a pipeline structure or a channel opened on the side wall of the tower body.

3. A passive heat dissipation 5G tower according to claim 1, characterized in that: At least part of the return flow channel is a spiral structure.

4. A passive heat dissipation 5G tower according to claim 1, characterized in that: The tower body height is not less than 15m.

5. A passive heat dissipation 5G tower according to claim 1, characterized in that: The tower body is a hollow structure, with an air outlet at the top and an air inlet at the bottom.

6. A passive heat dissipation 5G tower according to claim 5, characterized in that: The reflux channel includes a diversion section, a convergence section, and a connecting section. The diversion section is arranged from top to bottom along the tower body, and multiple diversion sections are arranged along the circumferential direction of the tower body. The convergence section is located at the bottom of the tower body. The outlets of multiple diversion sections are all connected to the convergence section, and the cross-sectional area of ​​the convergence section is larger than the cross-sectional area of ​​the reflux channel. The convergence section is connected to a water tank through the connecting section. A turbine is installed in the water tank and / or the connecting section through the rotation of the turbine shaft. When the turbine is in the water tank, it is located below the connecting section so that the turbine rotates when the coolant flows downstream. Fan blades are fixedly installed on the turbine shaft.

7. A passive heat dissipation 5G tower according to claim 5, characterized in that: A drainage port is provided on the top side wall of the tower body, and unpowered drainage devices are installed at the air outlet and the drainage port.

8. A passive heat dissipation 5G tower according to claim 7, characterized in that: The unpowered drainage device comprises an unpowered hood.

9. A passive heat dissipation 5G tower comprises a tower body, an AAU installed on the tower body, and a heat dissipation system for dissipating heat from the AAU, wherein the heat dissipation system comprises a heat exchange component, a liquid inlet pipe, a return pipe, and a pump assembly which are sequentially connected to form a closed-loop pipeline, wherein the heat exchange component is close to the AAU to reduce the temperature of the AAU; the return pipe extends from the top of the tower to the bottom of the tower, an opening is provided on the tower body, a heat dissipation structure is provided on the return pipe, the heat dissipation structure is located at the opening, and a coolant is provided in the closed-loop pipeline.

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