Satellite antenna with reconfigurable antenna array

Abstract

The application discloses a satellite antenna with a reconfigurable antenna array and belongs to the technical field of vehicle-mounted satellite communication. The satellite antenna with the reconfigurable antenna array comprises a mounting chassis and further comprises: an outer cover for isolating the satellite antenna from the outside world, wherein the outer cover is arranged on the mounting chassis; a first air outlet and a second air outlet for exchanging air flow with the outside world, wherein the first air outlet and the second air outlet are arranged on the mounting chassis; an array panel, a power amplifier module and a cooling fin are sequentially arranged in the outer cover from top to bottom; an air inlet channel is arranged at a windward end of the outer cover, wherein the air inlet channel is a sector, one end of the air inlet channel towards the outer cover is a small opening, and the other end of the air inlet channel towards the outside of the outer cover is a large opening; and the satellite antenna can improve the heat dissipation effect of the satellite antenna and ensure the stability of the operation of the satellite antenna.

Description

Technical Field

[0001] This invention relates to the field of vehicle-mounted satellite communication technology, and in particular to a satellite antenna with a reconfigurable antenna array. Background Technology

[0002] A reconfigurable antenna array is an antenna system composed of multiple reconfigurable antenna elements, each of which can adjust its performance parameters, such as frequency, radiation pattern, and polarization, according to actual needs. By changing the state of each antenna element, this type of antenna array can flexibly achieve multiple operating modes, thereby adapting to different communication environments and requirements.

[0003] This type of satellite antenna system with a reconfigurable antenna array has a variety of applications, such as mobile communications, radar systems, and vehicle communications. However, it generates a lot of heat during operation. If the heat dissipation is inadequate, it may lead to a decrease in equipment performance or damage. If the satellite antenna system is mounted on a mobile device, the heat dissipation problem may be even more prominent due to limited space. Therefore, effective heat dissipation measures, such as forced convection air cooling and water cooling, are required to ensure the normal operation of the equipment. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art by proposing a satellite antenna with a reconfigurable antenna array.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] The system includes a mounting chassis and an outer casing for isolating the satellite antenna from the outside environment, the casing being mounted on the mounting chassis; a first exhaust vent and a second exhaust vent for exchanging airflow with the outside environment, both mounted on the mounting chassis; an array panel, a power amplifier module, and a heat sink arranged sequentially from top to bottom inside the outer casing; an air inlet channel, which is fan-shaped, with a small opening at the end facing inwards and a large opening at the end facing outwards; and a protective cover mounted on the mounting chassis, on which four circumferentially distributed... Each of the four compartments is equipped with an isolation sleeve. The two isolation sleeves facing the leeward side of the outer cover are equipped with a first turbofan. The two compartments facing the windward side of the outer cover are connected to the air inlet channel. The two compartments facing the leeward side of the outer cover are equipped with exhaust ducts. The air inlet of the exhaust duct is connected to the isolation sleeve, and the air outlet of the exhaust duct is connected to the first exhaust outlet. The two isolation sleeves facing the windward side of the outer cover are equipped with a second turbofan. The two isolation sleeves facing the windward side of the outer cover are equipped with ventilation pipes, and cooling air vents are opened on the ventilation pipes.

[0007] Preferably, the protective cover is provided with a cover plate, and a through hole is opened on the cover plate located above the first turbofan.

[0008] Furthermore, the ventilation duct is disposed on the cover plate located above the second turbine fan, and the ventilation duct is connected to the isolation sleeve disposed below it.

[0009] Preferably, the mounting chassis is equipped with a drive motor, and the output end of the drive motor is fixedly connected to a drive gear, on which a first gear and a second gear are respectively meshed.

[0010] Furthermore, the first gear is fixedly connected to the first turbofan, and the second gear is fixedly connected to the second turbofan.

[0011] Preferably, the drive gear is equipped with a reducer, and the portion of the reducer extending out of the cover plate is fixedly connected to the bottom of the heat sink.

[0012] Preferably, the air inlet channel is provided with a grille, and a magnetic cleaning rod is slidably connected to the grille. The top of the magnetic cleaning rod slides inside the top wall of the air inlet channel. An air guide is provided in the air inlet channel, through which the air inlet channel is connected to the second air outlet.

[0013] Furthermore, the second turbofan is provided with a rotating rod at the top, a first transmission wheel is provided in the air inlet channel, and a first transmission belt is provided on the rod below the second turbofan blades. The second turbofan drives the first transmission wheel to rotate through the first transmission belt.

[0014] Furthermore, the bottom of the first drive wheel is rotatably connected to the air inlet channel, and a second drive wheel is fixedly connected to the first drive wheel. A positioning rod is provided in the air inlet channel at a position symmetrical to the second drive wheel. A second drive belt is provided on the second drive wheel and the positioning rod. A magnetic block that cooperates with the magnetic cleaning rod is fixedly connected to the outer surface of the second drive belt.

[0015] Furthermore, it also includes: a vehicle body that serves as the carrier of the satellite antenna, with the mounting chassis mounted on the vehicle body.

[0016] Compared with the prior art, the present invention provides a satellite antenna with a reconfigurable antenna array, which has the following advantages:

[0017] 1. The satellite antenna with a reconfigurable antenna array uses a first turbofan exhaust and a second turbofan intake to create a circulation between the inside of the outer casing and the outside air, thereby achieving more efficient heat dissipation for the satellite antenna body. The good heat dissipation effect ensures the stability of the satellite antenna during operation.

[0018] 2. The satellite antenna with a reconfigurable antenna array uses a magnetic cleaning rod to periodically clean the grille at the air inlet to remove impurities, ensuring smooth air intake and thus guaranteeing the heat dissipation effect of the satellite antenna.

[0019] The parts of the satellite antenna with reconfigurable antenna array that are not involved are the same as or can be implemented using existing technologies. This invention allows the air inside the outer casing to circulate with the outside air, thereby providing more efficient heat dissipation for the satellite antenna body. The good heat dissipation effect ensures the stability of the satellite antenna during operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a satellite antenna with a reconfigurable antenna array proposed in this invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the overall structure of a satellite antenna with a reconfigurable antenna array proposed in this invention. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the internal structure of a satellite antenna radome with a reconfigurable antenna array proposed in this invention. Figure 1 ;

[0023] Figure 4 This is a schematic diagram of the internal structure of a satellite antenna radome with a reconfigurable antenna array proposed in this invention. Figure 2 ;

[0024] Figure 5 This is a schematic diagram of the internal structure of a satellite antenna radome with a reconfigurable antenna array proposed in this invention. Figure 3 ;

[0025] Figure 6 This is a schematic diagram of the internal structure of a satellite antenna protective cover with a reconfigurable antenna array proposed in this invention;

[0026] Figure 7 This is a schematic diagram of the bottom surface of a satellite antenna mounting chassis with a reconfigurable antenna array proposed in this invention;

[0027] Figure 8 This is an exploded view of a satellite antenna with a reconfigurable antenna array proposed in this invention;

[0028] Figure 9 This is a schematic diagram of the active gear section of a satellite antenna with a reconfigurable antenna array proposed in this invention;

[0029] Figure 10 This is a cross-sectional view of the upper part of the air inlet channel of a satellite antenna with a reconfigurable antenna array proposed in this invention.

[0030] In the diagram: 1. Vehicle body; 2. Outer cover; 3. Air intake duct; 4. First exhaust vent; 5. Second exhaust vent; 6. Mounting chassis; 7. Array panel; 8. Power amplifier module; 9. Heat sink; 10. Cover plate; 11. Protective cover; 12. Ventilation duct; 13. Cooling vent; 14. Exhaust duct; 15. Magnetic cleaning rod; 16. Air guide; 17. Grille; 18. Drive gear; 19. First turbofan; 20. Reducer; 21. Second turbofan; 22. Rotating rod; 23. First transmission belt; 24. First transmission wheel; 25. Second transmission wheel; 26. Second transmission belt; 27. Magnetic block; 28. Isolation sleeve; 29. ​​First gear; 30. Second gear; 31. Through hole. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0032] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the satellite antenna or element with reconfigurable antenna array referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0033] Reference Figures 1-10The system includes a mounting chassis 6 and an outer cover 2, which isolates the satellite antenna from the outside environment. The outer cover 2 is mounted on the mounting chassis 6. A first exhaust vent 4 and a second exhaust vent 5, used for air exchange with the outside environment, are also mounted on the mounting chassis 6. Inside the outer cover 2, from top to bottom, are an array panel 7, a power amplifier module 8, and a heat sink 9. An air inlet channel 3 is provided at the windward end of the outer cover 2. The air inlet channel 3 is fan-shaped, with a small opening at the end facing inward and a large opening at the end facing outward. A protective cover 11 is mounted on the mounting chassis 6. The protective cover 11 has four small chambers arranged in a circular pattern. Each of the small chambers is equipped with an isolation sleeve 28. The two isolation sleeves 28 facing the leeward end of the outer cover 2 are equipped with a first turbo fan 19. The two small chambers facing the windward end of the outer cover 2 are connected to the air inlet channel 3. The two small chambers facing the leeward end of the outer cover 2 are equipped with an exhaust duct 14. The air inlet of the exhaust duct 14 is connected to the isolation sleeve 28, and the exhaust outlet of the exhaust duct 14 is connected to the first exhaust outlet 4. The two isolation sleeves 28 facing the windward end of the outer cover 2 are equipped with a second turbo fan 21. The two isolation sleeves 28 facing the windward end of the outer cover 2 are equipped with a ventilation pipe 12. The ventilation pipe 12 has a cooling air outlet 13.

[0034] In this invention, external airflow enters the outer casing 2 through the air inlet channel 3 and enters the isolation sleeve 28 equipped with the second turbo fan 21. The second turbo fan 21 rotates and pumps the external air in the isolation sleeve 28 into the ventilation pipe 12, and blows it from the cooling air outlet 13 on the ventilation pipe 12 to the array panel 7, the power amplifier module 8, and the heat sink 9 to dissipate heat from the satellite antenna.

[0035] The air used to dissipate heat from the satellite antenna is stored in the upper part of the outer casing 2. At this time, the first turbo fan 19 rotates, drawing the air in the upper part of the outer casing 2 into the isolation sleeve 28 where the first turbo fan 19 is installed, and then exhausting it through the first exhaust port 4.

[0036] It should be noted that the blades of the first turbofan 19 and the second turbofan 21 are oriented in opposite directions. The first turbofan 19 exhausts the air inside the outer casing 2, while the second turbofan 21 introduces outside air into the outer casing 2. Through the cooperation of the first turbofan 19 and the second turbofan 21, the outer casing 2 and the outside air form a circulating flow, which helps to improve the cooling effect on the satellite antenna.

[0037] The air intake channel 3 is fan-shaped, with a small opening at the end facing inwards from the outer cover 2 and a large opening at the end facing outwards from the outer cover 2. This makes it easier to draw in outside air and increases the airflow velocity into the outer cover 2.

[0038] In some implementations, the vehicle body 1, which serves as the carrier of the satellite antenna, is mounted on the chassis 6; the protective cover 11 is provided with a cover plate 10, and the cover plate 10 located above the first turbofan 19 has a through hole 31; the ventilation pipe 12 is provided on the cover plate 10 located above the second turbofan 21, and the ventilation pipe 12 is connected to the isolation sleeve 28 provided below it.

[0039] In this invention, since the vehicle body 1, which serves as the carrier of the satellite antenna, is mobile, the airflow enters the outer cover 2 through the air intake channel 3 and enters the isolation sleeve 28 equipped with the second turbo fan 21. The rotation of the second turbo fan 21 pumps the outside air in the isolation sleeve 28 into the ventilation pipe 12, and blows it through the cooling air vents 13 on the ventilation pipe 12 towards the array panel 7, the power amplifier module 8, and the heat sink 9 to dissipate heat from the satellite antenna.

[0040] In some embodiments, the mounting chassis 6 is equipped with a drive motor, the output end of which is fixedly connected to a drive gear 18, and a first gear 29 and a second gear 30 are respectively meshed on the drive gear 18; the first gear 29 is fixedly connected to the first turbofan 19, and the second gear 30 is fixedly connected to the second turbofan 21; the drive gear 18 is equipped with a reducer 20, and the portion of the reducer 20 extending out of the cover plate 10 is fixedly connected to the bottom of the heat sink 9.

[0041] In this invention, the drive motor is used to drive the drive gear 18 to rotate. The rotation of the drive gear 18 drives the first gear 29 and the second gear 30 to rotate, thereby causing the first turbofan 19 and the second turbofan 21 to rotate and perform air exchange.

[0042] The drive gear 18 rotates at high speed. Through the deceleration effect of the reducer 20, the array panel 7, power amplifier module 8, and heat sink 9 set above rotate slowly. At the same time, the airflow blown out of the cooling vent 13 can cool the array panel 7, power amplifier module 8, and heat sink 9 from all directions, resulting in better heat dissipation performance.

[0043] In some implementations, the air intake channel 3 is provided with a grille 17, and a magnetic cleaning rod 15 is slidably connected to the grille 17. The top of the magnetic cleaning rod 15 slides inside the top wall of the air intake channel 3. An air guide 16 is provided in the air intake channel 3, and the air intake channel 3 is connected to the second exhaust vent 5 through the air guide 16.

[0044] In this invention, the magnetic cleaning rod 15 slidably connected to the grille 17 can clean the grille 17. The magnetic cleaning rod 15 is triangular and beveled, which can better remove debris such as leaves attached to the grille 17, avoid the air intake channel 3 being blocked, and affect the cooling effect of the satellite antenna of the reconfigurable antenna array, thus helping to ensure its working stability.

[0045] The debris removed by the magnetic cleaning rod 15 will fall into the air duct 16, and the debris will eventually be discharged through the second exhaust duct 5;

[0046] Further, please refer to Figure 10 The top of the magnetic cleaning rod 15 slides inside the top wall of the air inlet channel 3. A groove is provided on the top wall of the air inlet channel 3, and an elastic component is also provided in the groove. The elastic component can be a spring. When the magnetic cleaning rod 15 slides to one end, the elastic component can push the magnetic cleaning rod 15 to return to its original position.

[0047] In some embodiments, the second turbofan 21 is provided with a rotating rod 22 at the top, a first transmission wheel 24 is provided in the air inlet channel 3, and a first transmission belt 23 is provided on the rod below the blades of the second turbofan 21. The second turbofan 21 drives the first transmission wheel 24 to rotate through the first transmission belt 23. The bottom of the first transmission wheel 24 is rotatably connected in the air inlet channel 3. A second transmission wheel 25 is fixedly connected to the first transmission wheel 24. A positioning rod is provided in the air inlet channel 3 at a position symmetrical to the second transmission wheel 25. A second transmission belt 26 is provided on the second transmission wheel 25 and the positioning rod. A magnetic block 27 that cooperates with the magnetic cleaning rod 15 is fixedly connected to the outer surface of the second transmission belt 26.

[0048] In this invention, to optimize transmission efficiency, the first transmission belt 23 and the second transmission belt 26 can be toothed belts;

[0049] When the second turbine fan 21 rotates, it drives the first transmission wheel 24 and the second transmission wheel 25 to rotate via the first transmission belt 23. The second transmission wheel 25 is located above the first transmission wheel 24. The second transmission wheel 25 drives the second transmission belt 26 to rotate, which in turn causes the magnetic block 27 to move along the trajectory of the second transmission belt 26 inside the air inlet channel 3. When the magnetic block 27 moves to one end of the grille 17 and is opposite to the magnetic cleaning rod 15, the magnetic block 27 and the magnetic cleaning rod 15 are magnetically attracted. The magnetic block 27 drives the magnetic cleaning rod 15 to move. When it moves to the other end of the grille 17, due to the running characteristics of the second transmission belt 26, the magnetic block 27 disengages from the magnetic cleaning rod 15. The magnetic cleaning rod 15 is reset with the cooperation of the elastic component. During this process of going and returning, the magnetic cleaning rod 15 can clean the grille 17.

[0050] To extend the service life of the magnetic cleaning rod 15 and improve the success rate of magnetic engagement between the magnetic block 27 and the magnetic cleaning rod 15, the cleaning of the grid 17 is performed intermittently. During operation, the drive gear 18 rotates at a lower speed, which slows down the movement of the magnetic block 27, thereby improving the success rate of magnetic engagement between the magnetic block 27 and the magnetic cleaning rod 15.

[0051] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A satellite antenna with a reconfigurable antenna array, comprising a mounting chassis (6), characterized in that, Also includes: The outer cover (2) is used to isolate the satellite antenna from the outside world, and the outer cover (2) is provided on the mounting chassis (6); The first exhaust vent (4) and the second exhaust vent (5) for exchanging airflow with the outside are both installed on the mounting chassis (6); The outer casing (2) is provided with an array panel (7), a power amplifier module (8), and a heat sink (9) from top to bottom. The outer cover (2) has an air inlet channel (3) at the windward end. The air inlet channel (3) is a fan shape, with a small opening at the end facing the inside of the outer cover (2) and a large opening at the end facing the outside of the outer cover (2). The mounting chassis (6) is provided with a protective cover (11). The protective cover (11) is provided with four small chambers arranged in a circular pattern. Each of the four small chambers is provided with an isolation sleeve (28). The two isolation sleeves (28) facing the leeward end of the outer cover (2) are provided with a first turbo fan (19). The two small chambers facing the windward end of the outer cover (2) are connected to the air inlet channel (3). The two small chambers facing the leeward end of the outer cover (2) are provided with an exhaust pipe (14). The air inlet of the exhaust pipe (14) is connected to the isolation sleeve (28). The exhaust outlet of the exhaust pipe (14) is connected to the first exhaust outlet (4). The protective cover (11) is provided with a cover plate (10). The cover plate (10) located above the first turbo fan (19) is provided with a through hole (31). A second turbofan (21) is provided inside the two isolation sleeves (28) facing the windward end of the outer cover (2). A ventilation pipe (12) is provided on the two isolation sleeves (28) facing the windward end of the outer cover (2). A cooling air vent (13) is opened on the ventilation pipe (12). The ventilation pipe (12) is located on the cover plate (10) above the second turbofan (21), and the ventilation pipe (12) is connected to the isolation sleeve (28) below it. The mounting chassis (6) is equipped with a drive motor, and the output end of the drive motor is fixedly connected to a drive gear (18). The drive gear (18) is equipped with a reducer (20). The part of the reducer (20) extending out of the cover plate (10) is fixedly connected to the bottom of the heat sink (9). The drive motor is used to drive the drive gear (18) to rotate. Through the rotation of the drive gear (18) and the deceleration effect of the reducer (20), the array panel (7), the power amplifier module (8), and the heat sink (9) set above rotate slowly, and the airflow blown out by the cooling vent (13) can cool the array panel (7), the power amplifier module (8), and the heat sink (9) in all directions.

2. A satellite antenna with a reconfigurable antenna array according to claim 1, characterized in that, The drive gear (18) is respectively connected to a first gear (29) and a second gear (30).

3. A satellite antenna with a reconfigurable antenna array according to claim 2, characterized in that, The first gear (29) is fixedly connected to the first turbofan (19), and the second gear (30) is fixedly connected to the second turbofan (21).

4. A satellite antenna with a reconfigurable antenna array according to claim 1, characterized in that, The air inlet channel (3) is provided with a grille (17), and a magnetic cleaning rod (15) is slidably connected to the grille (17). The top of the magnetic cleaning rod (15) slides inside the top wall of the air inlet channel (3). An air guide (16) is provided in the air inlet channel (3), and the air inlet channel (3) is connected to the second exhaust port (5) through the air guide (16).

5. A satellite antenna with a reconfigurable antenna array according to claim 4, characterized in that, The second turbofan (21) is provided with a rotating rod (22) at the top, and a first transmission wheel (24) is provided in the air inlet channel (3). A first transmission belt (23) is provided on the rod below the blade of the second turbofan (21). The second turbofan (21) drives the first transmission wheel (24) to rotate through the first transmission belt (23).

6. A satellite antenna with a reconfigurable antenna array according to claim 5, characterized in that, The bottom of the first drive wheel (24) is rotatably connected to the air inlet channel (3). A second drive wheel (25) is fixedly connected to the first drive wheel (24). A positioning rod is provided in the air inlet channel (3) and symmetrical to the second drive wheel (25). A second drive belt (26) is provided on the second drive wheel (25) and the positioning rod. A magnetic block (27) that cooperates with the magnetic cleaning rod (15) is fixedly connected to the outer surface of the second drive belt (26).

7. A vehicle comprising a satellite antenna with a reconfigurable antenna array as described in any one of claims 1-6, characterized in that, Also includes: The mounting chassis (6) is mounted on the vehicle body (1), which serves as the carrier of the satellite antenna.

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