Vortex tube-based active phased-array antenna heat dissipation device

Abstract

The utility model provides an active phased-array antenna heat dissipation device based on a vortex tube and application, and relates to the technical field of phased-array antenna heat dissipation. The heat dissipation device comprises an air compressor and a vortex tube. The air compressor is communicated with the vortex tube through a pipeline; the air compressor can compress entering air into high-pressure gas; the vortex tube can separate the high-pressure gas into hot air and cold air, the hot air can dry air entering the air compressor, and the cold air is used for heat dissipation of the active phased-array antenna. According to the invention, the phased-array antenna can be quickly cooled, and meanwhile, hot air generated by the vortex tube can be utilized to dry air entering the air compressor, so that the electrical performance of the antenna is prevented from being influenced by cold air mixed with water vapor when the phased-array antenna is cooled.

Description

Technical Field

[0001] The present invention relates to the technical field of heat dissipation of phased array antennas, and in particular to a heat dissipation device for an active phased array antenna based on a vortex tube. Background Art

[0002] As active phased array antennas develop towards high density and high integration, their power component density, power consumption and heat load are increasing, resulting in an increasing amount of heat generated per unit volume. Studies have shown that the chip-level heat flux density in active components is as high as 200W / cm 2 . Relevant analysis reports point out that 55% of active component failures are caused by high temperatures. Therefore, in order to ensure efficient and stable operation of electronic devices, it is necessary to conduct research on efficient and rapid heat dissipation technology for active phased array antennas.

[0003] Common active phased array antenna cooling methods include natural cooling, forced air cooling, liquid cooling, and phase change heat dissipation. Generally, low power density antennas use natural cooling and air cooling, while high power density antennas use liquid cooling, phase change, or a combination of the two. These cooling methods are widely used and mature, but there are certain limitations in heat dissipation efficiency: for forced air cooling and liquid cooling, most of them provide room temperature fluid heat dissipation, and when the flow rate and flow rate reach a certain value, the heat dissipation effect is no longer improved; for phase change heat dissipation, there are also problems such as durability and easy leakage of phase change materials. Summary of the invention

[0004] The purpose of this specification is to provide an active phased array antenna heat dissipation device based on a vortex tube, which can overcome the above-mentioned defects existing in the existing heat dissipation methods.

[0005] The embodiments of this specification are implemented as follows:

[0006] This specification proposes an active phased array antenna heat dissipation device based on a vortex tube, comprising an air compressor and a vortex tube;

[0007] The air compressor is connected to the vortex tube through a pipeline;

[0008] The air compressor is capable of compressing incoming air into high-pressure gas;

[0009] The vortex tube can separate the high-pressure gas into hot gas and cold gas, the hot gas can dry the air entering the air compressor, and the cold gas is used for heat dissipation of the active phased array antenna.

[0010] The embodiments of this specification have at least the following advantages or beneficial effects:

[0011] Compared with the prior art, the active phased array antenna heat dissipation device based on the vortex tube can quickly dissipate the heat of the phased array antenna by arranging an air compressor and a vortex tube. At the same time, the hot air generated by the vortex tube can be used to dry the air entering the air compressor to prevent the cold air mixed with water vapor from affecting the electrical performance of the antenna when dissipating the heat of the phased array antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of this specification, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present specification and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 A schematic diagram of the structure of an active phased array antenna heat dissipation device based on a vortex tube provided in this specification;

[0014] Figure 2 A schematic diagram of the structure of the vortex tube provided in this specification;

[0015] Figure 3 This is a schematic diagram of the structure of the diversion box provided in this manual.

[0016] Icons: 1. Air compressor; 11. First air inlet; 12. Air output; 2. Regulating valve; 3. Vortex tube; 31. Second air inlet; 32. Hot air output; 321. Conical valve; 33. Cold air output; 4. Flow meter; 5. Diverter box; 51. Universal tube; 6. Active phased array antenna. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of this specification more clear, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are part of the embodiments of this specification, not all of the embodiments. Generally, the components of the embodiments of this specification described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present specification provided in the accompanying drawings is not intended to limit the scope of the present specification claimed for protection, but merely represents selected embodiments of the present specification. Based on the embodiments in the present specification, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present specification.

[0019] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0020] In the description of the embodiments of this specification, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of this specification is usually placed when used. It is only for the convenience of describing this specification and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on this specification. In addition, if the terms "first", "second", "third", etc. appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0021] In addition, the use of terms such as "horizontal", "vertical", and "overhanging" does not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] In the description of the embodiments of this specification, it is also necessary to explain that, unless otherwise clearly specified and limited, the words "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be fixedly connected, detachably connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in this specification can be understood according to specific circumstances.

[0023] Please refer to Figures 1 to 3 , an active phased array antenna heat dissipation device based on a vortex tube provided in one embodiment of the present specification mainly comprises an air compressor 1 and a vortex tube 3;

[0024] The air compressor 1 is connected to the vortex tube 3 through a pipeline;

[0025] The air compressor 1 is capable of compressing the incoming air into high-pressure gas;

[0026] The vortex tube 3 can separate the high-pressure gas into hot air and cold air. The hot air can dry the air entering the air compressor 1 , and the cold air is used for heat dissipation of the active phased array antenna 6 .

[0027] In this embodiment, the air compressor 1 and the vortex tube 3 are connected by a hose. The hose can preferably be a double-layer hose, the inner layer material is polytetrafluoroethylene, and the outer layer material is a stainless steel braided layer. The applicable temperature range is -55°C to 200°C, so as to improve the applicability of the above-mentioned heat dissipation device.

[0028] In this embodiment, the air compressor 1 can be fixed at a reserved position of the active phased array antenna 6 to improve the heat dissipation convenience of the active phased array antenna 6. At the same time, the distance between the heat dissipation device and the phased array antenna can be shortened to avoid the increase of the cold air temperature during the output process.

[0029] In this embodiment, the lowest temperature of the cold air separated by the vortex tube 3 is -46°C, and the highest temperature of the hot air is 127°C.

[0030] Specifically, the air compressor 1 uses the outside air as the source, and separates cold air and hot air under the action of the vortex tube 3, which can be used to dissipate heat for the phased array antenna and dry the air entering / about to enter the air compressor 1, not only to quickly dissipate heat for the phased array antenna, but also to prevent the cold air mixed with water vapor from affecting the electrical performance of the antenna when dissipating heat for the phased array antenna. It can be seen that the above heat dissipation device has the advantages of simple structure, high heat dissipation efficiency, energy saving and environmental protection.

[0031] In this embodiment, the air compressor 1 has a first air inlet end 11 and an air output end 12. The air compressor 1 can compress the air entering the first air inlet end 11 to generate high-pressure gas. The air entering the first air inlet end 11 is dried by the hot air.

[0032] In this embodiment, the vortex tube 3 has a second air inlet end 31, a cold air output end 33 and a hot air output end 32. The second air inlet end 31 is connected to the air output end 12, and the position of the hot air output end 32 corresponds to the position of the first air inlet end 11. The vortex tube 3 can separate the energy of the high-pressure gas entering the second air inlet end 31 to generate hot air and cold air. The hot air is output through the hot air output end 32 to dry the air of the first air inlet end 11, and the cold air is output to the active phased array antenna 6 through the cold air output end 33.

[0033] In this embodiment, the hot air output end 32 may correspond to the position of the pipeline installed at the first air inlet end 11 to achieve the effect of drying the water vapor in the air.

[0034] In this embodiment, a regulating valve 2 is further included. The regulating valve 2 is arranged between the air output end 12 and the second air inlet end 31 . The regulating valve 2 can adjust the flow rate of cold air output to the active phased array antenna 6 .

[0035] In this embodiment, the hot air output end 32 is provided with a conical valve 321 , and the conical valve 321 can adjust the temperature of the cold air output to the active phased array antenna 6 .

[0036] By providing the regulating valve 2 and the conical valve 321 , the heat dissipation device can adjust the flow rate and / or temperature of the cold air according to the actual heat consumption working condition, so that the heat dissipation device can meet the heat dissipation requirements of different working conditions.

[0037] In this embodiment, the regulating valve 2 can adjust the flow rate of the cold air within a range of 0.06 m 3 / min~2.8m 3 / min, the cone valve 321 can adjust the temperature of the cold air to -40℃~0℃.

[0038] In this embodiment, the cold air output end 33 is provided with a flow meter 4. Specifically, the flow meter 4 can accurately obtain the amount of cold air flowing into the phased array antenna, so as to further adjust the cold air temperature and flow according to the heat dissipation efficiency of the phased array antenna.

[0039] In this embodiment, a shunt box 5 is further included, and the shunt box 5 is arranged between the cold air output terminal 33 and the active phased array antenna 6. The shunt box 5 can distribute and output the cold air to different heat dissipation positions of the active phased array antenna 6. By providing the shunt box 5, the cold air can be shunted into multiple cold flows, which can improve the temperature uniformity of the phased array antenna array surface.

[0040] In this embodiment, the diversion box 5 has multiple cold air channels, the cold air inlets of the multiple cold air channels are in a connected state, the cold air inlet is connected to the cold air output end 33, and the multiple cold air channels are independently arranged at one end away from the cold air inlet, and the cold air is output to the active phased array antenna 6 through the multiple cold air channels.

[0041] In this embodiment, a corresponding number of cold air channels can be set according to the heat dissipation position of the phased array antenna, and the cold air flow rate of the cold air channels can be set according to the heat dissipation amount of each heat dissipation position, so that the above-mentioned heat dissipation device can further quickly dissipate heat with higher heat dissipation efficiency.

[0042] In this embodiment, a gimbal tube 51 is correspondingly arranged at one end of the plurality of cold air channels away from the cold air inlet. The flow direction of the cold air in the gimbal tube 51 can be adjusted according to the heat dissipation position of the phased array antenna to further improve the temperature uniformity of the phased array antenna array surface.

[0043] In this embodiment, the gimbal 51 may be disposed at a heat source inside the phased array antenna, or may be disposed at an external port of the phased array antenna, so as to facilitate heat dissipation of the phased array antenna.

[0044] In this embodiment, the diverter box 5 is made of magnesium alloy, which is light in weight and can facilitate the transportation and fixed installation of the heat dissipation device.

[0045] In this embodiment, the air compressor 1 can preferably be a small portable compressor, which has the advantage of small size. While providing sufficient high-pressure gas (to meet the heat dissipation requirements, that is, being able to provide sufficient high-pressure gas), it is also light and convenient.

[0046] The above are only preferred embodiments of this specification and are not intended to limit this specification. For those skilled in the art, this specification may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this specification shall be included in the protection scope of this specification.

Claims

1. An active phased array antenna heat dissipation device based on a vortex tube, used for heat dissipation of an active phased array antenna, characterized in that: Includes air compressor and vortex tube; The air compressor is connected to the vortex tube through a pipeline; The air compressor is capable of compressing incoming air into high-pressure gas; The vortex tube can separate the high-pressure gas into hot gas and cold gas, the hot gas can dry the air entering the air compressor, and the cold gas is used for heat dissipation of the active phased array antenna.

2. The active phased array antenna heat dissipation device based on a vortex tube according to claim 1, characterized in that: The air compressor has a first air inlet end and an air output end. The air compressor can compress the air entering the first air inlet end to generate high-pressure gas. The air entering the first air inlet end is dried by the hot gas.

3. The active phased array antenna heat dissipation device based on a vortex tube according to claim 2, characterized in that: The vortex tube has a second air inlet end, a cold air output end and a hot air output end. The second air inlet end is connected to the air output end. The position of the hot air output end corresponds to the position of the first air inlet end. The vortex tube can separate the energy of the high-pressure gas entering the second air inlet end to generate hot air and cold air. The hot air is output through the hot air output end to dry the air at the first air inlet end, and the cold air is output to the active phased array antenna through the cold air output end.

4. The active phased array antenna heat dissipation device based on a vortex tube according to claim 3, characterized in that: It also includes a regulating valve, which is arranged between the air output end and the second air inlet end, and the regulating valve can adjust the flow of cold air output to the active phased array antenna.

5. The active phased array antenna heat dissipation device based on a vortex tube according to claim 3 or 4, characterized in that: The hot air output end is provided with a conical valve, and the conical valve can adjust the temperature of the cold air output to the active phased array antenna.

6. The active phased array antenna heat dissipation device based on a vortex tube according to claim 5, characterized in that: The cold air output end is provided with a flow meter.

7. The active phased array antenna heat dissipation device based on a vortex tube according to claim 3, characterized in that: It also includes a shunt box, which is arranged between the cold air output end and the active phased array antenna, and the shunt box can distribute and output the cold air to different heat dissipation positions of the active phased array antenna.

8. The active phased array antenna heat dissipation device based on a vortex tube according to claim 7, characterized in that: The diversion box has multiple cold air channels, the cold air inlets of the multiple cold air channels are in a connected state, the cold air inlets are connected to the cold air output ends, the multiple cold air channels are independently arranged at one end away from the cold air inlets, and the cold air is output to the active phased array antenna through the multiple cold air channels.

9. The active phased array antenna heat dissipation device based on a vortex tube according to claim 8, characterized in that: A universal tube is correspondingly arranged at one end of the plurality of cold air passages away from the cold air inlet end.

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