A wind cooling device for a cylindrical phased array antenna

Abstract

The application provides a wind cooling device of a cylindrical phased array antenna, which comprises an antenna frame, a TR module, a waveguide slot array, an antenna cover, a fan support, a fan, a wind channel cover plate, a refrigeration device and a ventilation pipeline, the waveguide slot array, the TR module and the fan support are fixed on the antenna frame, the TR module and the fan support are arranged in a conformal manner with the waveguide slot array, the fan is fixed on the fan support, the wind channel cover plate is fixed on the antenna frame, the wind channel cover plate is located on the side of the fan support, the fan support and the wind channel cover plate form a first cavity, the refrigeration device is arranged in the antenna frame, the outlet of the refrigeration device is communicated with the first cavity through the ventilation pipeline, and the antenna cover is located outside the waveguide slot array. The cold air delivered by the refrigeration device is uniformly blown to the surface of the TR module by the fan, and the heat dissipation problem of the semi-cylindrical distributed TR module is solved.

Description

Technical Field

[0001] This invention relates to the field of heat dissipation technology for cylindrical phased arrays, specifically to a wind-cooling device for a cylindrical phased array antenna. Background Technology

[0002] The TR module is a core component of an active phased array antenna. Composed of numerous power devices, the TR module experiences increasing heat flux density due to rising integration levels and size limitations. This can easily push the devices to their rated temperatures, leading to malfunctions or damage. Furthermore, the requirement for antenna phase consistency necessitates minimizing temperature differences between TR modules. Therefore, effective heat dissipation of the TR module is crucial for ensuring the performance of active phased array antennas. Currently, technologies related to heat dissipation for cylindrical phased array antennas are lacking.

[0003] Therefore, the present invention provides a wind-cooling device for cylindrical phased array antennas, which solves the heat dissipation problem of TR module while ensuring the installation of various antenna components, filling the gap in the field of heat dissipation of cylindrical phased array antennas. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide an air-cooling device for cylindrical phased array antennas that can solve the heat dissipation problem of TR modules.

[0005] The present invention provides a wind-cooling device for a cylindrical phased array antenna, comprising an antenna frame, a TR module, a waveguide slot array, and an radome, and further comprising a fan bracket, a fan, a duct cover, a cooling device, and a ventilation duct. The waveguide slot array, the TR module, and the fan bracket are fixed on the antenna frame. The TR module is located between the waveguide slot array and the fan bracket. The TR module, the fan bracket, and the waveguide slot array are conformally arranged. The fan is fixed on the fan bracket. The duct cover is fixed on the antenna frame and located on the side of the fan bracket. The fan bracket and the duct cover form a first cavity. The cooling device is located inside the antenna frame. The outlet of the cooling device is connected to the first cavity through the ventilation duct. The cooling capacity of the cooling device is transferred to the TR module through the ventilation duct and the first cavity. The radome is connected to the antenna frame and is located outside the waveguide slot array.

[0006] Furthermore, it also includes a door panel, which is connected to the antenna frame, and the cooling device is disposed in the cavity formed by the door panel and the antenna frame.

[0007] Furthermore, it also includes a shroud, which is fixed within the antenna frame. The outlet of the cooling device and the shroud form a second cavity, and the second cavity is connected to the first cavity through the ventilation duct.

[0008] Preferably, the ventilation duct is a rectangular tube, and the material of the ventilation duct is aluminum alloy.

[0009] Preferably, the antenna frame is integrally welded.

[0010] Furthermore, the waveguide slot array is composed of dual-polarized slotted waveguides, which are arranged along the circumferential direction to form a cylindrical array structure.

[0011] Preferably, one of the TR modules is connected to the two slotted waveguides via a cable.

[0012] Furthermore, the surface of the TR module is provided with heat dissipation fins.

[0013] Preferably, the fan is fixed in a fan shape on the fan bracket, and one fan corresponds to five TR modules.

[0014] Preferably, the fan bracket has an opening at a position opposite to the fan.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The air-cooling device for cylindrical phased array antenna provided by the present invention takes into account the characteristic that the waveguide slot array and TR module of the phased array antenna are arranged in the circumferential direction, and adopts an air-cooling heat dissipation method. The axial flow fan is conformally arranged with the TR module and the waveguide slot tube to ensure uniform airflow at the TR module, thus solving the heat dissipation problem of the cylindrical array.

[0016] 2. The air-cooling device for the cylindrical phased array antenna provided by the present invention adopts an integrated design, which integrates the ventilation duct inside the antenna frame, thereby improving the antenna's mechanical resistance.

[0017] 3. The air-cooling device for the cylindrical phased array antenna provided by the present invention is simple to install and highly maintainable. The TR module, waveguide slot array and other components can be maintained by opening the antenna cover, and the rear air conditioner and other components can be maintained by opening the door panel. Attached Figure Description

[0018] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the air-cooling device for a cylindrical phased array antenna according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of the ventilation duct of the air-cooling device for the cylindrical phased array antenna according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the air inlet and outlet of the air-cooling device for the cylindrical phased array antenna according to an embodiment of the present invention.

[0019] In the figure, 1-antenna frame, 2-TR module, 3-waveguide slot array, 4-antenna cover, 5-fan bracket, 6-axial flow fan, 7-air duct cover, 8-cooling device, 9-door panel, 10-fan cover, 11-first cavity, 12-second cavity, 13-air inlet, 14-air outlet. Detailed Implementation

[0020] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0021] This invention provides a wind-cooling device for cylindrical phased array antennas. For the heat dissipation of the semi-cylindrical TR modules in the phased array antenna, a fan-shaped fan is used to evenly blow the cold air delivered by the cooling device onto the heat dissipation fins of the TR modules to achieve efficient heat dissipation and solve the heat dissipation problem of the semi-cylindrical TR modules.

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, the air-cooling device for the cylindrical phased array antenna in this embodiment includes: antenna frame 1, TR module 2, waveguide slot array 3, radome 4, fan bracket 5, axial flow fan 6, air duct cover 7, cooling device 8, door panel 9, fan cover 10, and ventilation duct.

[0023] Antenna frame 1 is the mounting base for the array assembly. All equipment is mounted on antenna frame 1, which is formed by a combination of aluminum alloy welding and machining.

[0024] The waveguide slot array 3 consists of 80 dual-polarized slotted waveguides, uniformly arranged circumferentially to form a cylindrical array. Each waveguide is individually mounted on the antenna frame 1. Forty antenna TR modules 2 are mounted on the antenna frame 1 with screws. The TR modules 2 are conformally arranged with the waveguide slot array 3, and each TR module 2 is connected to two waveguides via cables. Parallel heat dissipation fins are provided on the surface of the TR modules 2 to increase the convective heat transfer area while reducing ineffective wind resistance. The fan bracket 5 is fixed to the antenna frame 1 with screws. The TR modules 2, fan bracket 5, and waveguide slot array 3 are conformally arranged, with the waveguide slot array 3 located on the outermost side and the TR modules 2 located between the waveguide slot array 3 and the fan bracket 5.

[0025] A cooling device 8 is installed inside the antenna frame 1 to provide cooling to regulate temperature changes within the array surface. For example... Figure 2As shown, a shroud 10 is connected to the outlet surface of the cooling device 8, thus forming a closed second cavity 12 between the cooling device 8 and the antenna frame 1 to prevent airflow leakage. The shroud 10 is connected to the antenna frame 1 by screws, and the cooling device 8 can be equipped with cooling devices such as air conditioners.

[0026] The door panel 9 is mounted to the back of the antenna frame 1 by screws and hinges, housing the cooling unit 8 inside the antenna frame 1. The door panel 9 facilitates the installation and maintenance of equipment inside the antenna frame 1.

[0027] The axial fan 6 is the core component of the air-cooling device, used to intensify airflow. The axial fan 6 is mounted on the fan bracket 5 using screws. The fan bracket 5 has eight sides, with one axial fan 6 mounted on each side. One axial fan 6 corresponds to the cooling of five TR modules 2. The included angle between the axial fans 6 is set at 163° to ensure uniform airflow at each TR module 2. An opening is made at the center of the fan bracket 5 corresponding to the hub of the axial fan 6 to allow for better heat transfer through the fan bracket 5.

[0028] The duct cover 7 is fixedly connected to the antenna frame 1, and the duct cover 7 is located on the side of the antenna frame 1, so that a first cavity 11 is formed between the duct cover 7 and the antenna frame 1, and the cooling energy can flow in the first cavity 11.

[0029] Ventilation ducts are also installed inside the antenna frame 1, such as Figure 2 As shown, the ventilation duct is a rectangular tube, with one end connected to the first cavity 11 and the other end connected to the second cavity 12. It is used to transmit the cold air generated by the cooling device 8 to the first cavity 11 through the second cavity 12. The interface between the ventilation duct and the first cavity 11 is an air inlet 13, and an air outlet 14 is provided in the gap between the TR module 2 and the waveguide slot array 3. The cold air generated by the cooling device 8 is transmitted into the first cavity 11 through the ventilation duct.

[0030] The ventilation duct is made of aluminum alloy plate welded together to prevent assembly stress and greatly improve the overall antenna's resistance to mechanical environment.

[0031] like Figure 3 As shown, the heat generated by the power devices inside TR module 2 is transferred to the parallel fins on the module surface through heat conduction. The heat is then dissipated to the external environment through the cold air blown by the axial fan 6, achieving efficient heat dissipation while avoiding hot air recirculation, ensuring that the temperature value and temperature difference of TR module 2 are within a low range.

[0032] The radome 4 is mounted to the front of the antenna frame 1 with screws for wave transmission and waterproofing.

[0033] The air-cooling device for the cylindrical phased array antenna of the present invention adopts an integrated design, integrating the ventilation duct inside the antenna frame, so that the cold air generated by the cooling device can be transferred to the TR module that needs heat dissipation in a timely manner, thus solving the heat dissipation problem of the cylindrical phased array antenna; the antenna frame is integrally welded and machined, which improves the stability of the antenna structure and greatly enhances the antenna's resistance to mechanical environment; the present invention has good heat dissipation performance for high heat flux density TR modules, stable structure, and strong maintainability, and has good practical value.

[0034] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A cooling device for a cylindrical phased array antenna, comprising an antenna frame, a TR module, a waveguide slot array, and an antenna radome, characterized in that, It also includes a fan bracket, a fan, a duct cover, a cooling device, and a ventilation duct. The waveguide slot array, TR module, and fan bracket are fixed on the antenna frame. The TR module is located between the waveguide slot array and the fan bracket. The TR module and the fan bracket are conformally arranged with the waveguide slot array. The fan is fixed on the fan bracket. The duct cover is fixed on the antenna frame and is located on the side of the fan bracket. The fan bracket and the duct cover form a first cavity. The cooling device is located inside the antenna frame. The outlet of the cooling device is connected to the first cavity through the ventilation duct. The cooling capacity of the cooling device is transmitted to the TR module through the ventilation duct and the first cavity. The radome is connected to the antenna frame and is located outside the waveguide slot array.

2. The air-cooling device for the cylindrical phased array antenna according to claim 1, characterized in that, It also includes a door panel, which is connected to the antenna frame, and the cooling device is disposed in the cavity formed by the door panel and the antenna frame.

3. The air-cooling device for the cylindrical phased array antenna according to claim 2, characterized in that, It also includes a shroud, which is fixed inside the antenna frame. The outlet of the cooling device and the shroud form a second cavity, and the second cavity is connected to the first cavity through the ventilation duct.

4. The air-cooling device for the cylindrical phased array antenna according to claim 1, characterized in that, The ventilation duct is a rectangular tube, and the material of the ventilation duct is aluminum alloy.

5. The air-cooling device for the cylindrical phased array antenna according to claim 1, characterized in that, The antenna frame is integrally welded together.

6. The air-cooling device for the cylindrical phased array antenna according to claim 1, characterized in that, The waveguide slot array is composed of dual-polarized slotted waveguides, which are arranged along the circumferential direction to form a cylindrical array structure.

7. The air-cooling device for the cylindrical phased array antenna according to claim 6, characterized in that, One of the TR modules is connected to the two slotted waveguides via cables.

8. The air-cooling device for the cylindrical phased array antenna according to claim 7, characterized in that, The surface of the TR module is provided with heat dissipation fins.

9. The air-cooling device for the cylindrical phased array antenna according to claim 8, characterized in that, The fan is fixed in a fan shape on the fan bracket, and one fan corresponds to five TR modules.

10. The air-cooling device for the cylindrical phased array antenna according to claim 1, characterized in that, The fan support has a hole at the position corresponding to the hub of the fan.

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