Heat dissipation assembly of civil aviation communication radio station
By designing a closed cavity structure and a heat exchanger, the problem of dust accumulation caused by the heat dissipation method of civil aviation communication radios was solved, achieving stable heat dissipation and improved equipment reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-03-13
AI Technical Summary
The existing cooling methods used in civil aviation communication radios lead to dust accumulation, which affects the heat dissipation effect of the equipment and poses a risk of short circuits.
It adopts a closed first and second cavity structure, uses heat conductors and heat exchangers for heat transfer, and combines heat dissipation fins and fans for heat dissipation, avoiding the entry of a large amount of air and reducing dust accumulation.
It achieves stable heat dissipation, reduces dust accumulation, lowers the risk of equipment failure, extends equipment lifespan, and reduces maintenance costs.
Smart Images
Figure CN223993828U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of civil aviation communication equipment technology, and in particular to a heat dissipation component for a civil aviation communication radio. Background Technology
[0002] As a key piece of equipment for ensuring aviation communication safety, civil aviation communication radios generate a certain amount of heat during continuous operation. In order to ensure that the equipment works stably for a long time, heat dissipation holes are usually opened on the equipment casing to ensure that airflow can enter the equipment smoothly.
[0003] Some radios have more advanced functions, are larger in size, and have more components. In order to stabilize their operating temperature, cooling fans are installed at the heat dissipation holes, and heat dissipation fins or heat pipes adapted to the cooling fans are added to enhance the heat dissipation effect.
[0004] However, this method allows a large amount of air to enter, resulting in a lot of dust on the circuit board and other circuit interfaces, which in turn weakens the heat dissipation of the device and also brings the risk of short circuits. Utility Model Content
[0005] This application provides a heat dissipation component for a civil aviation communication radio, which solves the problem of dust accumulation caused by the direct airflow heat dissipation method of existing communication radios.
[0006] This application provides a heat dissipation assembly for a civil aviation communication radio. The heat dissipation assembly is installed on the housing of the communication radio. The heat dissipation assembly includes a heat exchanger, a heat conductor, heat dissipation fins, and a cooling fan. The heat conductor abuts against the heat exchanger. The heat dissipation fins are disposed on the heat exchanger, and the heat dissipation fins and the heat conductor are located at opposite ends of the heat exchanger. The cooling fan is disposed on one side of the heat dissipation fins. The housing has a closed first cavity and a second cavity communicating with the outside. The first cavity and the second cavity are connected through a heat dissipation hole. An air inlet and an air outlet are formed between the second cavity and the outside. The heat exchanger is sealed at the heat dissipation hole. The heat conductor is disposed in the first cavity, and the heat conductor is attached to the inner wall of the first cavity. The heat dissipation fins are disposed in the second cavity, and the cooling fan is disposed in the second cavity.
[0007] The housing in this application comprises a first cavity and a second cavity, with a heat exchanger disposed between them. Heat in the first cavity is conducted to the heat exchanger via a heat conductor, and then transferred to the second cavity via the heat exchanger. Heat dissipation fins and a cooling fan in the second cavity carry away heat from the heat exchanger through airflow via the air inlet, the second cavity, and the air outlet, thus effectively cooling the first cavity. This design eliminates the need for large amounts of air intake, avoiding rapid dust accumulation caused by excessive air intake and ensuring stable heat dissipation for the communication radio.
[0008] In some embodiments of this application, the heat conductor includes a heat-conducting plate, which is disposed around the inner wall of the first cavity. The heat-conducting plate's arrangement around the inner wall of the first cavity allows it to effectively absorb heat adhering to the casing, thus dissipating heat from the device.
[0009] In some embodiments of this application, multiple heat-conducting plates are provided, and the multiple heat-conducting plates are distributed at intervals. Multiple heat-conducting plates can further improve the heat conduction rate and effect of the heat conductor in the first cavity.
[0010] In some embodiments of this application, the heat conductor further includes a liquid cooling pipe and a coolant. The liquid cooling pipe is arranged around the inner wall of the first cavity, and its extension direction is perpendicular to the extension direction of the heat-conducting plate. The ends of the liquid cooling pipe are connected, and the coolant is filled inside the liquid cooling pipe. The liquid cooling pipe and the coolant can conduct heat attached to the inner wall of the first cavity. At the same time, the liquid cooling pipe is perpendicular to the heat-conducting plate, which can absorb heat from different parts of the cavity, thus facilitating the heat dissipation from the first cavity.
[0011] In some embodiments of this application, multiple liquid cooling pipes are provided, and these multiple liquid cooling pipes are distributed at intervals. Multiple liquid cooling pipes can further improve the heat conduction rate within the first cavity.
[0012] In some embodiments of this application, the heat-conducting plate is attached to the heat exchanger, and a gap is provided between the two ends of the heat-conducting plate. The liquid cooling pipe is disposed at the gap between the two ends of the heat-conducting plate. The gap formed between the two ends of the heat-conducting plate can facilitate the connection between the two ends of the heat-conducting body, while avoiding heat crossover between them, reducing internal heat exchange, and facilitating heat dissipation.
[0013] In some embodiments of this application, bends are formed at the portions where the heat-conducting plate connects to the heat exchanger, and bends are formed at the portions where the liquid-cooling pipe connects to the heat exchanger. The heat-conducting plates and liquid-cooling pipes are spaced apart, with gaps between adjacent heat-conducting plates and between adjacent liquid-cooling pipes. The bends facilitate the layout design of the heat-conducting plates and liquid-cooling pipes, preventing direct heat exchange between heat-conducting plates, between heat-conducting plates and liquid-cooling pipes, and between liquid-cooling pipes.
[0014] In some embodiments of this application, the communication radio includes multiple heating elements, and the heat dissipation assembly further includes multiple heat sinks, each corresponding to one of the heating elements. Each heat sink is at least partially attached to its corresponding heating element. All heat sinks are sealed to the heat conductor using silicone grease. The heating elements are attached to the heat conductor via the heat sinks, allowing some of the heat from the heating elements to be directly conducted to the second cavity through the heat sinks, heat conductor, and heat exchanger, and to be directly dissipated through the heat dissipation fins and cooling fan.
[0015] In some embodiments of this application, the heat-generating components include a power supply, an integrated circuit board, and a power amplifier. The power supply, integrated circuit board, and power amplifier are the heat-generating components within the communication radio. Arranging heat sinks on the power supply, integrated circuit board, and power amplifier helps improve the heat dissipation effect on the first cavity of the housing. Attached Figure Description
[0016] The accompanying drawings are provided to further illustrate the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solution of this utility model and do not constitute a limitation on the technical solution of this utility model.
[0017] Figure 1 This is a schematic diagram of a heat dissipation component for a civil aviation communication radio provided in an embodiment of this application.
[0018] Figure 2 This is a bottom view of a heat exchanger in a heat dissipation assembly of a civil aviation communication radio provided in an embodiment of this application.
[0019] Reference numerals: 1-Shell; 11-First cavity; 12-Second cavity; 121-Air inlet; 122-Air outlet; 13-Heat dissipation hole; 2-Heat exchanger; 3-Heat conductor; 31-Heat conduction plate; 32-Liquid cooling pipe; 4-Heat dissipation fins; 5-Heat dissipation fan; 6-Heat generation element; 61-Power amplifier; 62-Integrated circuit board; 63-Power supply; 7-Heat dissipation plate. Detailed Implementation
[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0022] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, when describing pipelines, the terms "connected" and "linked" as used in this application have the meaning of establishing electrical connection. The specific meaning needs to be understood in conjunction with the context.
[0024] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.
[0025] As a key piece of equipment for ensuring aviation communication safety, civil aviation communication radios generate a certain amount of heat during continuous operation. In order to ensure that the equipment works stably for a long time, heat dissipation holes are usually opened on the equipment casing to ensure that airflow can enter the equipment smoothly.
[0026] Some radios have more advanced functions, are larger in size, and have more components. In order to stabilize their operating temperature, cooling fans are installed at the heat dissipation holes, and heat dissipation fins or heat pipes adapted to the cooling fans are added to enhance the heat dissipation effect.
[0027] However, this method allows a large amount of air to enter, resulting in a lot of dust on the circuit board and other circuit interfaces, which in turn weakens the heat dissipation of the device and also brings the risk of short circuits.
[0028] Therefore, please refer to Figure 1 This application provides a heat dissipation component for a civil aviation communication radio, which is installed on the housing 1 of the communication radio. The civil aviation communication radio can be a conventional temporary radio or a fixed radio. The housing 1 can be the outer shell of the civil aviation communication radio, and its material can be metal, plastic, or other composite materials; for the convenience of signal transmission, high-performance plastics, such as polycarbonate, are preferred.
[0029] Please refer to Figure 1 The heat dissipation assembly includes a heat exchanger 2, a heat conductor 3, heat dissipation fins 4, and a cooling fan 5. The heat exchanger 2 can be one or both of a heat conduction plate 31 and a liquid cooling pipe 32. The heat exchanger 2 can be a metal base, and its shape can be a disc, a square plate, or other shapes. The heat dissipation fins 4 can be conventional heat dissipation fins, and the cooling fan 5 can be a conventional fan.
[0030] Please refer to Figure 1The heat conductor 3 comes into contact with the heat exchanger 2. The heat conductor 3 can be made of a material with good thermal conductivity, such as copper or aluminum alloy.
[0031] Please refer to Figure 1 Heat dissipation fins 4 are disposed on the heat exchanger 2, and the heat dissipation fins 4 and the heat conductor 3 are located at opposite ends of the heat exchanger 2. The heat dissipation fins 4 play a crucial role in the heat dissipation components of civil aviation communication radios. They are made of aluminum alloy, which has the advantages of low density and excellent thermal conductivity, enabling it to quickly absorb and dissipate heat, significantly improving heat dissipation efficiency.
[0032] Please refer to Figure 1 In terms of layout, the heat dissipation fins 4 are arranged in a staggered pattern, forming multiple ventilation channels. This unique arrangement greatly increases the heat dissipation area, by approximately 30% compared to the traditional parallel arrangement. Air flows within these ventilation channels, extending the contact time with the fins and enhancing heat exchange efficiency. The airflow generated by the cooling fan 5 can quickly flow over the heat dissipation fins 4, promptly carrying away heat and achieving efficient cooling of the communication radio.
[0033] Please refer to Figure 1 The cooling fan 5 is located on one side of the heat dissipation fins 4. Within the heat dissipation cavity of the civil aviation communication radio's heat dissipation assembly, the cooling fan 5 plays a crucial role in accelerating heat dissipation. To adapt to civil aviation communication radios with different power ratings and environmental conditions, either a DC brushless fan or an AC centrifugal fan can be selected. DC brushless fans are low-noise and have a long lifespan; thanks to PWM speed control technology, their speed can be flexibly adjusted according to the actual temperature of the communication radio, achieving precise heat dissipation.
[0034] The fan can be connected to the power supply 63 of the communication radio through the wiring through the housing 1, and is driven by the power supply 63 of the communication radio.
[0035] Please refer to Figure 1 Typical models, such as the NMB-MAT B1925H12H, have an airflow of up to 200 CFM, which can meet the heat dissipation needs of most medium-power radios. AC centrifugal fans are suitable for high-power radios with extremely high heat dissipation requirements. They feature high air pressure and large airflow, such as the ebm-papst R2E220-AB06-01. These fans operate stably and maintain good heat dissipation performance even under high load conditions, providing a solid guarantee for the stable operation of communication radios.
[0036] Please refer to Figure 1The housing 1 contains a closed first cavity 11 and a second cavity 12 that communicates with the outside. The first cavity 11 and the second cavity 12 are connected by a heat dissipation hole 13. The second cavity 12 has an air inlet 121 and an air outlet 122 connected to the outside. The first cavity 11 can be a closed cavity, meaning that except for the heat dissipation hole 13, the first cavity 11 may not communicate with the outside. Alternatively, the first cavity 11 may be composed of multiple parts, and there may be gaps at the joints of these parts. In this case, the first cavity 11 can be considered a closed cavity.
[0037] Please refer to Figure 1 The second cavity 12 can be formed independently of the shell 1, or it can be formed by an external special plate and a recess on the outer wall of the shell 1. The heat dissipation hole 13 can be a square hole or a round hole. The air inlet 121 and the air outlet 122 can be two openings that connect the second cavity 12 to the outside.
[0038] Please refer to Figure 1 The heat exchanger 2 is sealed at the heat dissipation hole 13. The heat exchanger 2 and the heat dissipation hole 13 of the shell 1 can be sealed together, for example, by using polytetrafluoroethylene (PTFE) for sealing, or by using a metal sealing ring for high-precision assembly to achieve a seal.
[0039] Please refer to Figure 1 A heat conductor 3 is disposed within the first cavity 11, and the heat conductor 3 is attached to the inner wall of the first cavity 11. Heat dissipation fins 4 are disposed within the second cavity 12, and a cooling fan 5 is disposed within the second cavity 12. The attachment of the heat conductor 3 to the inner wall of the first cavity 11 can be partial, meaning that at least a portion of the heat conductor 3 is attached to the inner wall of the first cavity 11 to facilitate the absorption of heat from the wall panel of the housing 1.
[0040] Please refer to Figure 1 A gap may be provided between the heat dissipation fins 4 and the inner wall of the second cavity 12 to facilitate their disassembly and assembly; the heat dissipation fan 5 may be fixed inside the second cavity 12, and the heat dissipation fan 5 and the heat dissipation fins 4 shall be installed in the direction of the air inlet, the second cavity 12 and the air outlet of the second cavity 12 to facilitate the airflow in the second cavity 12 to flow in a predetermined direction.
[0041] Please refer to Figure 1In this application, the housing 1 contains a first cavity 11 and a second cavity 12. A heat exchanger 2 is disposed between the first cavity 11 and the second cavity 12. Heat in the first cavity 11 can be conducted to the heat exchanger 2 via a heat conductor 3, and then transferred to the second cavity 12 via the heat exchanger 2. The heat dissipation fins 4 and the cooling fan 5 in the second cavity 12 can carry away the heat on the heat exchanger 2 through airflow in the direction of the air inlet 121, the second cavity 12, and the air outlet 122, thereby achieving a heat dissipation effect on the first cavity 11. This solution does not require a large amount of air to enter, avoiding the rapid accumulation of dust caused by a large amount of air entering, and ensuring a stable heat dissipation effect of the heat dissipation component for the communication radio.
[0042] Please refer to Figure 1 In some examples, the housing 1 of the civil aviation communication radio is designed as two independent cavities, namely a first cavity 11 and a second cavity 12. The first cavity 11 is used to install the core electronic components of the communication radio, such as circuit boards and chips; the second cavity 12 is specifically responsible for heat dissipation. The two cavities are connected by a heat exchanger 2 to ensure that heat can be quickly and effectively conducted from the first cavity 11 to the second cavity 12.
[0043] Please refer to Figure 1 In some examples, a heat conduction system consisting of a heat conductor 3 is installed within the independent first cavity 11. The heat conductor 3 utilizes the excellent thermal conductivity of air to achieve efficient heat transfer, quickly absorbing heat from the shell 1 and transferring it to the heat exchanger 2. This heat conduction system can rapidly and uniformly absorb heat from the shell 1 of the independent cavity, preventing overall overheating of the equipment. Simultaneously, the independent first cavity 11 can employ a sealed design to effectively prevent the entry of large amounts of air, reducing the possibility of dust accumulation at the source.
[0044] Please refer to Figure 1 In some examples, the second cavity 12 is tightly connected to the first cavity 11 via a heat exchanger 2. The heat exchanger 2 can be made of a metal material with a high thermal conductivity, such as a copper alloy, to ensure that heat can be quickly conducted from the independent cavity to the heat dissipation cavity. The second cavity 12 is provided with heat dissipation fins 4, which can be made of aluminum alloy, thus having good heat dissipation performance.
[0045] Please refer to Figure 1 The heat dissipation fins 4 are arranged in a staggered pattern, forming multiple ventilation channels, which increases the heat dissipation area and enhances the heat exchange efficiency between the air and the heat dissipation fins 4. In addition, the heat dissipation cavity is also equipped with a cooling fan 5. The airflow generated by the cooling fan 5 can quickly remove the heat from the heat dissipation fins 4, further improving the heat dissipation effect.
[0046] Please refer to Figure 1Through the synergistic effect of the heat conductor 3, heat exchanger 2 and heat dissipation fins 4, efficient heat transfer and dissipation are achieved, which can quickly and effectively reduce the temperature of the communication radio and ensure the stable operation of the equipment.
[0047] Please refer to Figure 1 The independent, sealed chamber design prevents excessive air ingress, significantly reducing dust accumulation and lowering the risk of equipment failure due to dust buildup, thus extending the equipment's lifespan. Reduced dust accumulation means less cleaning work and maintenance frequency, lower maintenance costs and downtime, and improved equipment availability.
[0048] Please refer to Figure 1 In some examples, firstly, the liquid cooling pipe 32 and the heat-conducting plate 31 are installed inside the first cavity 11 to ensure that the heat of the housing 1 can be transferred smoothly. Then, the core electronic components of the communication radio are installed inside the first cavity 11, ensuring that the components are securely installed and the wiring is correct. Next, a heat sink 7 is installed on the heat-generating electronic components, and the heat sink 7 is stably connected to the adjacent heat conductor 3 using silicone grease or the like.
[0049] Please refer to Figure 1 The heat-conducting plate 31 and the liquid cooling pipe 32 are fixed to the housing 1, and the heat dissipation plate 7 is fixed to the corresponding heat-conducting plate 31 or liquid cooling pipe 32.
[0050] Please refer to Figure 1 Then, the heat exchanger 2 is fixed at the heat dissipation hole 13 and sealed. The heat dissipation fins 4 are then installed on the heat exchanger 2, and the cooling fan 5 is installed.
[0051] Please refer to Figure 1 In some examples, it can be illustrated that, for ease of installation, the housing 1 containing the first cavity 11 can be designed as two parts, namely, the bottom plate of the housing 1 is a detachable plate, so that the entire device can be flipped over to install components.
[0052] Furthermore, the shell 1 at the second cavity 12 and the shell 1 at the first cavity 11 can be detachably connected. For example, it can be set as an arc plate so that the arc plate and the shell 1 are fixed with bolts to form an air inlet and an air outlet, thereby facilitating the flow of air in the duct.
[0053] Please refer to Figure 1 In some examples, the heat-conducting plate 31, the liquid cooling pipe 32 and the shell 1 can be fixedly connected by means of clamps, buckles or other methods.
[0054] In some examples, the heat conductor 3 includes a heat-conducting plate 31, which is arranged around the inner wall of the first cavity 11. The heat-conducting plate 31 is arranged around the inner wall of the first cavity 11, which allows the heat-conducting plate 31 to effectively absorb the heat attached to the housing 1, thereby achieving the effect of heat dissipation for the device.
[0055] Please refer to Figure 1 In some examples, the heat-conducting plate 31 can be an aluminum alloy sheet with a uniform width. In this case, a recess can be provided on the inner wall of the first cavity 11 of the housing 1 to facilitate the installation of the heat-conducting plate 31.
[0056] Please refer to Figure 1 The heat conductor 3 here surrounds the inner wall of the first cavity 11, which can cover the area formed by the heat conductor 3 and the heat exchanger 2 around the inner wall of the first cavity 11.
[0057] The inner wall of the first cavity 11 is the inner wall side of the portion of the shell 1 located in the first cavity 11. The extension direction of the heat-conducting plate 31 can be along the length and height direction of the shell 1, or along the width and height direction.
[0058] Please refer to Figure 2 In some examples, multiple heat-conducting plates 31 are provided, and the multiple heat-conducting plates 31 are distributed at intervals. Multiple heat-conducting plates 31 can further improve the heat conduction rate and effect of the heat conductor 3 to the first cavity 11.
[0059] In some examples, the number of heat-conducting plates 31 can be 2 to 5, and the spacing between adjacent heat-conducting plates 31 can be equal everywhere.
[0060] Please refer to Figure 1 In some examples, the heat conductor 3 also includes a liquid cooling pipe 32 and a coolant. The liquid cooling pipe 32 is arranged around the inner wall of the first cavity 11, and the extension direction of the liquid cooling pipe 32 is perpendicular to the extension direction of the heat-conducting plate 31. The ends of the liquid cooling pipe 32 are connected together, and the coolant is filled inside the liquid cooling pipe 32. The liquid cooling pipe 32 and the coolant can conduct the heat attached to the inner wall of the first cavity 11. At the same time, the liquid cooling pipe 32 is perpendicular to the heat-conducting plate 31, and can absorb heat from different parts of the cavity 11, which helps to remove heat from the cavity 11.
[0061] Please refer to Figure 1 In some examples, the portion of the liquid cooling pipe 32 that is in contact with the inner wall of the housing 1 and the heat exchanger 2 can be set as a plane, and the cross-section of the liquid cooling pipe 32 can be arc-shaped. The beginning and end of the liquid cooling pipe 32 are connected, and the interior can be filled with coolant.
[0062] Please refer to Figure 1The liquid cooling pipe 32 can be a closed independent liquid cooling pipe 32, which consists of a closed pipeline and a coolant (such as a water / ethylene glycol mixture or fluorinated liquid) forming an independent module, and is fixedly connected to the heat exchange part, i.e. the heat exchanger 2 in this solution, for heat conduction and exchange.
[0063] Please refer to Figure 2 The perpendicularity between the liquid cooling pipe 32 and the heat-conducting plate 31 can be understood as the partial distribution of the liquid cooling pipe 32 and the heat-conducting plate 31 on the shell 1 being perpendicular to each other. For example, when the heat exchanger 2 is located on the top wall of the shell 1, the heat-conducting plate 31 can extend along the length and height directions of the shell 1 and wrap around it, and the liquid cooling pipe 32 can extend along the width and height directions of the shell 1 and wrap around it. At this time, the extension directions of the heat-conducting plate 31 and the liquid cooling pipe 32 along the length and width directions are perpendicular to each other.
[0064] In some examples, multiple liquid cooling pipes 32 are provided, and the multiple liquid cooling pipes 32 are distributed at intervals. Multiple liquid cooling pipes 32 can further improve the heat conduction rate within the first cavity 11.
[0065] In some examples, the number of liquid cooling tubes 32 can be 3 to 5. The spacing between two adjacent liquid cooling tubes 32 can be the same.
[0066] Please refer to Figure 1 and Figure 2 In some examples, the heat-conducting plate 31 is attached to the heat exchanger 2, and a gap is provided between the two ends of the heat-conducting plate 31. The liquid cooling pipe 32 is located at the gap between the two ends of the heat-conducting plate 31. The gap formed at the ends of the heat-conducting plate 31 can facilitate the connection between the two ends of the heat-conducting body 3, while avoiding heat crossover between them, reducing internal heat exchange, and facilitating heat dissipation.
[0067] In some examples, the liquid cooling pipe 32 is an independent structure that needs to be connected end to end, while the heat conduction plate 31 only needs to be connected end to end to the heat exchanger 2. The above method can facilitate the arrangement and design of the liquid cooling pipe 32.
[0068] Please refer to Figure 2 In some examples, the portion where the heat-conducting plate 31 connects to the heat exchanger 2 has a bend, and the portion where the liquid-cooling pipe 32 connects to the heat exchanger 2 has a bend. The heat-conducting plate 31 and the liquid-cooling pipe 32 are spaced apart, with gaps between adjacent heat-conducting plates 31 and between adjacent liquid-cooling pipes 32. The bends facilitate the layout design of the heat-conducting plate 31 and the liquid-cooling pipe 32, and prevent direct heat exchange between heat-conducting plates 31, between heat-conducting plates 31 and liquid-cooling pipes 32, and between liquid-cooling pipes 32.
[0069] In some examples, the heat-conducting plate 31 and liquid cooling pipe 32 are distributed relatively dispersedly within the housing 1, but the heat exchanger 2 is small in volume. Therefore, the bent portion can form a tentacled structure to facilitate the connection between the heat-conducting plate 31, liquid cooling pipe 32 and heat exchanger 2.
[0070] Please refer to Figure 1 In some examples, the communication radio includes multiple heating elements 6, and the heat dissipation assembly also includes multiple heat sinks 7, each corresponding to one of the heating elements 6. Each heat sink 7 is at least partially attached to its corresponding heating element 6. All heat sinks 7 are sealed to the heat conductor 3 with silicone grease. The heating element 6 is attached to the heat conductor 3 via the heat sink 7, allowing some of the heat from the heating element 6 to be directly conducted to the second cavity 12 through the heat sink 7, heat conductor 3, and heat exchanger 2, and to be directly dissipated through the heat dissipation fins 4 and cooling fan 5.
[0071] Please refer to Figure 1 In some examples, the heat-generating element 6 includes a power supply 63, an integrated circuit board 62, and a power amplifier 61. The power supply 63, integrated circuit board 62, and power amplifier 61 are components with concentrated heat generation within the communication radio. By arranging heat sinks 7 on the power supply 63, integrated circuit board 62, and power amplifier 61, the heat dissipation effect on the first cavity 11 of the housing 1 is improved.
[0072] In some examples, the power supply 63 is typically composed of multiple modules. When connecting the heat sink 7, a heat sink 7 is first customized to match the shape of the power supply 63 modules. The heat sink 7 is fixed to the housing of the power supply 63 with screws. To enhance thermal conductivity, thermal grease is evenly applied to the contact surfaces of the two to fill the tiny gaps, reduce thermal resistance, and ensure that heat is smoothly conducted from the power supply 63 to the heat sink 7.
[0073] For the integrated circuit board 62, the heat sink 7 adopts a clip-on design. Matching clips are installed on both sides of the integrated circuit board 62, and the heat sink 7 is securely fixed to the top of the integrated circuit board 62 via these clips. Similarly, a high thermal conductivity thermal grease is applied to the contact surface to ensure full contact between the heat sink 7 and the surface of the integrated circuit board 62, achieving efficient heat transfer.
[0074] The power amplifier 61 generates a large amount of heat during operation, requiring high heat dissipation. Therefore, the heat sink 7 can be embedded in the power amplifier 61. A groove is designed on the housing of the power amplifier 61, and the heat sink 7 is embedded in the groove and fixed by welding. Welding not only ensures the stability of the connection but also greatly reduces thermal resistance, allowing heat to be quickly transferred from the power amplifier 61 to the heat sink 7. The heat sink 7 is in close contact with the heat conductor 3, creating an efficient channel for heat conduction from the heating element 6 to the first cavity 11.
[0075] Meanwhile, a heat conduction system consisting of a heat-conducting plate 31 and a liquid-cooling pipe 32 is installed inside the first cavity 11. The liquid-cooling pipe 32 is filled with coolant, which absorbs the heat transferred by the liquid-cooling pipe 32 during circulation, thus achieving rapid heat transfer.
[0076] This heat conduction system can quickly and evenly absorb heat within the independent chambers, avoiding localized overheating. The first chamber 11 adopts a sealed design, effectively preventing a large amount of air from entering and reducing the possibility of dust accumulation at the source.
[0077] In some examples, the aforementioned heat-generating elements 6, such as the power supply 63, the integrated circuit board 62, and the heat sink 7 on the power amplifier 61, can all be mounted on the liquid cooling pipe 32 to ensure cooling effect.
[0078] Please refer to Figure 1 It can be explained that, in order to facilitate the contact between the heating element 6 and the liquid cooling pipe 32, the heat-conducting plate 31 is designed to be attached to the plate surface on the plate surface away from the heat exchanger 2, while the liquid cooling pipe 32 is set on the upper side of the heating element 6, that is, suspended above the plate surface, to avoid the heat-conducting plate 31 and the liquid cooling pipe 32 from contacting each other at this point.
[0079] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.
[0080] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A heat dissipation assembly of a civil aviation communication radio station, installed on a shell of the communication radio station; characterized in that, The heat dissipation assembly comprises: a heat exchange body; a heat conduction body abutting against the heat exchange body; a heat dissipation fin arranged on the heat exchange body, the heat dissipation fin being located at opposite ends of the heat exchange body with the heat conduction body; a heat dissipation fan arranged on one side of the heat dissipation fin; wherein, a closed first cavity and a second cavity communicating with the outside are formed in the shell, the first cavity and the second cavity are communicated through a heat dissipation hole, and the second cavity and the outside form an air inlet hole and an air outlet hole; the heat exchange body is sealingly arranged at the heat dissipation hole, the heat conduction body is arranged in the first cavity, the heat conduction body is attached to the inner wall of the first cavity, the heat dissipation fin is arranged in the second cavity, and the heat dissipation fan is arranged in the second cavity.
2. The heat dissipation assembly of the civil aviation communication radio station according to claim 1, wherein the heat conduction body comprises a heat conduction plate, and the heat conduction plate is arranged around the inner wall of the first cavity.
3. The heat dissipation assembly of the civil aviation communication radio station according to claim 2, wherein the heat conduction plate is arranged in multiple, and the multiple heat conduction plates are distributed at intervals.
4. The heat dissipation assembly of the civil aviation communication radio station according to claim 2, wherein the heat conduction body further comprises a liquid cooling pipe and cooling liquid, the liquid cooling pipe is arranged around the inner wall of the first cavity, the extension direction of the liquid cooling pipe is perpendicular to the extension direction of the heat conduction plate, the liquid cooling pipe is connected at the ends, and the cooling liquid is filled in the liquid cooling pipe.
5. The heat dissipation assembly of the civil aviation communication radio station according to claim 4, wherein the liquid cooling pipe is arranged in multiple, and the multiple liquid cooling pipes are distributed at intervals.
6. The heat dissipation assembly of the civil aviation communication radio station according to claim 5, wherein the heat conduction plate is attached to the heat exchange body, a space is arranged between the two ends of the heat conduction plate, and the liquid cooling pipe is arranged at the space between the two ends of the heat conduction plate.
7. The heat dissipation assembly of the civil aviation communication radio station according to claim 6, wherein a bend is formed on the part of the heat conduction plate connected to the heat exchange body, a bend is formed on the part of the liquid cooling pipe connected to the heat exchange body, the heat conduction plate and the liquid cooling pipe are distributed at intervals, a gap is arranged between the two adjacent heat conduction plates, and a gap is arranged between the two adjacent liquid cooling pipes.
8. The heat dissipation assembly of the civil aviation communication radio station according to any one of claims 1-7, wherein the communication radio station comprises multiple heat generating elements, the heat dissipation assembly further comprises multiple heat dissipation plates, the multiple heat dissipation plates correspond to the multiple heat generating elements one by one, and the heat dissipation plates are at least partially attached to the corresponding heat generating elements; the multiple heat dissipation plates are sealingly abutted against the heat conduction body through silicone grease.
9. The heat dissipation assembly of the civil aviation communication radio station according to claim 8, wherein the heat generating elements comprise a power supply, an integrated circuit board and a power amplifier.