Satellite antenna with reconfigurable antenna array

Abstract

The invention discloses a satellite antenna with a reconfigurable antenna array, and belongs to the technical field of vehicle-mounted satellite communication. A satellite antenna with a reconfigurable antenna array comprises an installation chassis and further comprises an outer cover used for isolating the satellite antenna from the outside, and the outer cover is arranged on the installation chassis; the first air outlet and the second air outlet are used for exchanging air flow with the outside and 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; the windward end of the outer cover is provided with an air inlet channel, the air inlet channel is in a sector shape, the end, facing the interior of the outer cover, of the air inlet channel is a small opening, and the end, facing the exterior of the outer cover, of the air inlet channel is a large opening. The heat dissipation effect of the satellite antenna can be improved, and the operation stability of the satellite antenna is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle-mounted satellite communications, and in particular to a satellite antenna with a reconfigurable antenna array. Background Art

[0002] A reconfigurable antenna array refers to an antenna system composed of multiple reconfigurable antenna units, in which each antenna unit can adjust its performance parameters such as frequency, radiation pattern, polarization mode, etc. according to actual needs; this antenna array can flexibly implement multiple working modes by changing the state of each antenna unit, thereby adapting to different communication environments and needs.

[0003] This satellite antenna system with a reconfigurable antenna array has a variety of application scenarios, such as mobile communications, radar systems, vehicle communications and other fields; however, it will generate a lot of heat during operation. If the heat dissipation is not good, it may cause device performance degradation or damage. If the satellite antenna system is loaded on a mobile device, due to limited space, the heat dissipation problem may be more prominent; therefore, effective heat dissipation measures are needed, such as forced convection air heat dissipation, water cooling, etc., to ensure the normal operation of the equipment. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to propose a satellite antenna with a reconfigurable antenna array.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: The invention comprises a mounting chassis and also comprises: an outer cover for isolating the satellite antenna from the outside, the outer cover being arranged on the mounting chassis; a first air outlet and a second air outlet for exchanging airflow with the outside, both being arranged on the mounting chassis; an array panel, a power amplifier module, and a heat sink are arranged in sequence from top to bottom in the outer cover; an air inlet channel is arranged at the windward end of the outer cover, the air inlet channel is in a fan shape, the end facing the inner side of the outer cover is a small opening, and the end facing the outer side of the outer cover is a large opening; a protective cover is arranged on the mounting chassis, and four Small chambers, each of the four small chambers is provided with an isolation sleeve, and the first turbofan is provided in the two isolation sleeves facing the leeward end of the outer cover, wherein the two small chambers facing the windward end of the outer cover are connected with the air inlet channel, and the two small chambers facing the leeward end of the outer cover are provided with an exhaust duct, the air inlet of the exhaust duct is connected with the isolation sleeve, and the exhaust port of the exhaust duct is connected with the first exhaust port; the second turbofan is provided in the two isolation sleeves facing the windward end of the outer cover, and the two isolation sleeves facing the windward end of the outer cover are provided with a ventilation duct, and the ventilation duct is provided with a cooling air outlet.

[0006] Preferably, a cover plate is provided on the protective cover, and a through hole is opened on the cover plate located above the first turbofan.

[0007] Furthermore, the ventilation duct is arranged on a cover plate located above the second turbofan, and the ventilation duct is communicated with an isolation sleeve arranged below the ventilation duct.

[0008] Preferably, a driving motor is provided on the mounting chassis, an output end of the driving motor is fixedly connected to a driving gear, and a first gear and a second gear are respectively meshed and connected to the driving gear.

[0009] Furthermore, the first gear is fixedly connected to the first turbofan, and the second gear is fixedly connected to the second turbofan.

[0010] Preferably, a reducer is provided on the driving gear, and the portion of the reducer extending out of the cover plate is fixedly connected to the bottom of the heat sink.

[0011] Preferably, a grille is provided in the air inlet channel, a magnetic cleaning rod is slidably connected to the grille, the top of the magnetic cleaning rod slides in the top wall of the air inlet channel, and an air guide port is opened in the air inlet channel, through which the air inlet channel is connected to the second air outlet.

[0012] Furthermore, a rotating rod is provided at the top of the second turbofan, a first transmission wheel is provided in the air inlet channel, a first transmission belt is provided on the rod body below the blades of the second turbofan, and the second turbofan drives the first transmission wheel to rotate through the first transmission belt.

[0013] Furthermore, the bottom of the first transmission wheel is rotatably connected in the air inlet channel, the first transmission wheel is fixedly connected to the second transmission wheel, a positioning rod is provided in the air inlet channel and symmetrically to the second transmission wheel, the second transmission wheel and the positioning rod are provided with a second transmission belt, and the outer surface of the second transmission belt is fixedly connected to a magnetic suction block that cooperates with the magnetic cleaning rod.

[0014] Furthermore, it also includes: a vehicle body serving as a carrier of the satellite antenna, and the mounting chassis is mounted on the vehicle body.

[0015] Compared with the prior art, the present invention provides a satellite antenna with a reconfigurable antenna array, which has the following beneficial effects: 1. The satellite antenna with a reconfigurable antenna array forms a circulation between the inside of the outer cover and the outside air through the first turbofan exhaust and the second turbofan intake, thereby more efficiently cooling the satellite antenna body, with good heat dissipation effect, and ensuring the stability of the satellite antenna during operation.

[0016] 2. The satellite antenna with a reconfigurable antenna array regularly cleans the grille at the air inlet through a magnetic cleaning rod to ensure smooth air intake and thus ensure the heat dissipation effect of the satellite antenna.

[0017] The parts not involved in the satellite antenna with a reconfigurable antenna array are the same as the prior art or can be implemented using the prior art. The present invention allows the inside of the outer cover to form a circulation with the outside air, thereby more efficiently dissipating the heat of the satellite antenna body, with good heat dissipation effect, ensuring the stability of the satellite antenna during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structure of a satellite antenna with a reconfigurable antenna array proposed by the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of a satellite antenna with a reconfigurable antenna array proposed by the present invention is shown in FIG. Figure 2 ; Figure 3 A schematic diagram of the structure inside the outer cover of a satellite antenna with a reconfigurable antenna array proposed by the present invention Figure 1 ; Figure 4 A schematic diagram of the structure inside the outer cover of a satellite antenna with a reconfigurable antenna array proposed by the present invention Figure 2 ; Figure 5 A schematic diagram of the structure inside the outer cover of a satellite antenna with a reconfigurable antenna array proposed by the present invention Figure 3 ; Figure 6 A schematic diagram of the structure inside a protective cover of a satellite antenna with a reconfigurable antenna array proposed by the present invention; Figure 7 A schematic structural diagram of the bottom surface of a satellite antenna installation chassis with a reconfigurable antenna array proposed by the present invention; Figure 8 An exploded diagram of a satellite antenna with a reconfigurable antenna array proposed by the present invention; Fig. 9 This is a schematic structural diagram of a driving gear portion of a satellite antenna with a reconfigurable antenna array proposed by the present invention; Fig.10 The present invention provides a cross-sectional view of the upper end of an air inlet passage of a satellite antenna with a reconfigurable antenna array.

[0019] In the figure: 1. body; 2. outer cover; 3. air inlet channel; 4. first air outlet; 5. second air outlet; 6. mounting chassis; 7. array panel; 8. amplifier module; 9. heat sink; 10. cover plate; 11. protective cover; 12. ventilation duct; 13. cooling air outlet; 14. exhaust duct; 15. magnetic cleaning rod; 16. air guide port; 17. grille; 18. driving 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 DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the satellite antenna or element with a reconfigurable antenna array must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] Reference Figure 1-Figure 10 , including a mounting chassis 6, and also including: an outer cover 2 for isolating the satellite antenna from the outside world, the outer cover 2 is arranged on the mounting chassis 6; a first exhaust port 4 and a second exhaust port 5 for exchanging airflow with the outside world are both arranged on the mounting chassis 6; an array panel 7, a power amplifier module 8, and a heat sink 9 are arranged in sequence from top to bottom in the outer cover 2; an air inlet channel 3 is arranged at the windward end of the outer cover 2, and the air inlet channel 3 is a fan-shaped one, and its end facing the inside of the outer cover 2 is a small opening, and the end facing the outside of the outer cover 2 is a large opening; a protective cover 11 is arranged on the mounting chassis 6, and four small chambers are arranged on the protective cover 11 in a circumferential manner, and the four Isolation sleeves 28 are provided in the small chambers, and first turbofans 19 are provided in the two isolation sleeves 28 facing the leeward end of the outer cover 2, wherein the two small chambers facing the windward end of the outer cover 2 are connected with the air inlet channel 3, and exhaust ducts 14 are provided on the two small chambers facing the leeward end of the outer cover 2, the air inlet of the exhaust duct 14 is connected with the isolation sleeves 28, and the exhaust port of the exhaust duct 14 is connected with the first exhaust port 4; second turbofans 21 are provided in the two isolation sleeves 28 facing the windward end of the outer cover 2, and ventilation pipes 12 are provided on the two isolation sleeves 28 facing the windward end of the outer cover 2, and cooling air outlets 13 are opened on the ventilation pipes 12.

[0023] In the present invention, the external airflow enters the outer cover 2 through the air inlet channel 3, and enters the isolation sleeve 28 provided with the second turbofan 21. The second turbofan 21 rotates to pump the external air in the isolation sleeve 28 into the ventilation pipe 12, and blows the external air to the array panel 7, the power amplifier module 8, and the heat sink 9 through the cooling air outlet 13 on the ventilation pipe 12 to dissipate heat for the satellite antenna. The air for cooling the satellite antenna is stored in the upper part of the outer cover 2. At this time, the first turbofan 19 rotates to draw the air in the upper part of the outer cover 2 into the isolation sleeve 28 provided with the first turbofan 19, and then discharges it through the first exhaust port 4. 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 discharges the air inside the outer cover 2, and the second turbofan 21 delivers the outside air into the outer cover 2. Through the cooperation of the first turbofan 19 and the second turbofan 21, the outer cover 2 and the outside air form a circulation flow, which helps to improve the cooling effect of the satellite antenna. The air inlet channel 3 is fan-shaped, with a small opening at one end facing the inside of the outer cover 2 and a large opening at the other end facing the outside of the outer cover 2, so that the intake of external air is smoother and the air flow rate entering the outer cover 2 is higher.

[0024] In some embodiments, the vehicle body 1 serves as the carrier of the satellite antenna, and the mounting chassis 6 is installed on the vehicle body 1; a cover plate 10 is provided on the protective cover 11, and a through hole 31 is opened on the cover plate 10 located above the first turbofan 19; the ventilation duct 12 is arranged on the cover plate 10 located above the second turbofan 21, and the ventilation duct 12 is connected to the isolation sleeve 28 arranged thereunder.

[0025] In the present invention, since the vehicle body 1 serving as the carrier of the satellite antenna is mobile, the airflow will enter the outer cover 2 through the air inlet channel 3, and enter the isolation sleeve 28 provided with the second turbofan 21. The second turbofan 21 rotates to pump the outside air in the isolation sleeve 28 into the ventilation duct 12, and is blown toward the array panel 7, the power amplifier module 8, and the heat sink 9 through the cooling air outlet 13 on the ventilation duct 12 to dissipate the heat of the satellite antenna.

[0026] In some embodiments, a driving motor is provided on the mounting chassis 6, and a driving gear 18 is fixedly connected to the output end of the driving motor, and a first gear 29 and a second gear 30 are respectively meshed and connected to the driving 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; a reducer 20 is provided on the driving gear 18, and the part of the reducer 20 extending out of the cover plate 10 is fixedly connected to the bottom of the heat sink 9.

[0027] In the present invention, the driving motor is used to drive the driving gear 18 to rotate, and the driving gear 18 rotates, thereby driving the first gear 29 and the second gear 30 to rotate, so that the first turbofan 19 and the second turbofan 21 rotate to perform air exchange; The driving gear 18 rotates at a high speed. Through the deceleration effect of the reducer 20, the array panel 7, the power amplifier module 8, and the heat sink 9 arranged above rotate slowly. At the same time, the air flow blown out of the cooling air outlet 13 can cool the array panel 7, the power amplifier module 8, and the heat sink 9 in all directions, and the heat dissipation performance is better.

[0028] In some embodiments, a grille 17 is provided in the air inlet channel 3, and a magnetic cleaning rod 15 is slidably connected to the grille 17. The top of the magnetic cleaning rod 15 slides in the top wall of the air inlet channel 3. An air guide port 16 is opened in the air inlet channel 3, and the air inlet channel 3 is connected to the second air outlet 5 through the air guide port 16.

[0029] In the present invention, the magnetic cleaning rod 15 slidably connected to the grille 17 can clean the grille 17. The magnetic cleaning rod 15 is a triangular inclined surface, which can better remove debris attached to the grille 17, such as leaves, etc., to avoid the air inlet channel 3 from being blocked, which affects the cooling effect of the satellite antenna of the reconfigurable antenna array, and helps to ensure its working stability. The debris removed by the magnetic cleaning rod 15 will fall into the air guide port 16, and will eventually be discharged through the second air outlet 5; For further information, please refer to Fig.10 The top of the magnetic cleaning rod 15 slides in the top wall of the air inlet channel 3. A slide groove is provided on the top wall of the air inlet channel 3. An elastic component is also provided in the slide 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 reset.

[0030] In some embodiments, a rotating rod 22 is provided at the top of the second turbofan 21, a first transmission wheel 24 is provided in the air inlet channel 3, a first transmission belt 23 is provided on the rod body below the blades of the second turbofan 21, and 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, and the first transmission wheel 24 is fixedly connected to the second transmission wheel 25. A positioning rod is provided in the air inlet channel 3 and 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, and a magnetic suction block 27 that cooperates with the magnetic cleaning rod 15 is fixedly connected to the outer surface of the second transmission belt 26.

[0031] In the present invention, in order to optimize the transmission energy efficiency, the first transmission belt 23 and the second transmission belt 26 can be toothed belts; When the second turbofan 21 rotates, the second turbofan 21 drives the first transmission wheel 24 and the second transmission wheel 25 to rotate through the first transmission belt 23. The second transmission wheel 25 is arranged above the first transmission wheel 24. The second transmission wheel 25 drives the second transmission belt 26 to rotate, so that the magnetic block 27 moves inside the air inlet channel 3 along the trajectory of the second transmission belt 26. 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 to each other, and 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 operating characteristics of the second transmission belt 26, the magnetic block 27 is separated from the magnetic cleaning rod 15, and the magnetic cleaning rod 15 is reset with the cooperation of the elastic component. In this process of going and returning, the magnetic cleaning rod 15 can clean the grille 17. In order to extend the service life of the magnetic cleaning rod 15 and improve the success rate of magnetic matching between the magnetic block 27 and the magnetic cleaning rod 15, the cleaning of the grille 17 is intermittent. During operation, the driving gear 18 rotates at a lower speed, so that the movement of the magnetic block 27 also slows down, thereby improving the success rate of magnetic matching between the magnetic block 27 and the magnetic cleaning rod 15.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A satellite antenna with a reconfigurable antenna array, comprising a mounting chassis (6), characterized in that: Also includes: An outer cover (2) is used to isolate the satellite antenna from the outside world, and the outer cover (2) is arranged on a mounting chassis (6); A first air outlet (4) and a second air outlet (5) for exchanging airflow with the outside, both of which are arranged on the mounting chassis (6); The outer cover (2) is provided with an array panel (7), a power amplifier module (8), and a heat sink (9) in order from top to bottom; 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 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), and the protective cover (11) is provided with four small chambers distributed in a circumferential manner, and the four small chambers are each provided with an isolation sleeve (28), and the two isolation sleeves (28) facing the leeward end of the outer cover (2) are provided with a first turbofan (19), wherein the two small chambers facing the windward end of the outer cover (2) are connected to the air inlet channel (3), and the two small chambers facing the leeward end of the outer cover (2) are provided 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); A second turbofan (21) is arranged in the two isolation sleeves (28) facing the windward end of the outer cover (2), and a ventilation pipe (12) is arranged on the two isolation sleeves (28) facing the windward end of the outer cover (2), and a cooling air outlet (13) is opened on the ventilation pipe (12).

2. A satellite antenna with a reconfigurable antenna array according to claim 1, characterized in that: A cover plate (10) is provided on the protective cover (11), and a through hole (31) is provided on the cover plate (10) located above the first turbofan (19).

3. The satellite antenna with a reconfigurable antenna array according to claim 1, characterized in that: The ventilation pipe (12) is arranged on a cover plate (10) located above the second turbofan (21), and the ventilation pipe (12) is in communication with an isolation sleeve (28) arranged below the ventilation pipe (12).

4. The satellite antenna with a reconfigurable antenna array according to claim 2, characterized in that: A driving motor is provided on the mounting chassis (6), the output end of the driving motor is fixedly connected to a driving gear (18), and the driving gear (18) is meshedly connected to a first gear (29) and a second gear (30), respectively.

5. A satellite antenna with a reconfigurable antenna array according to claim 4, 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).

6. The satellite antenna with a reconfigurable antenna array according to claim 4, characterized in that: A reducer (20) is provided on the driving gear (18), 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).

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

8. The satellite antenna with a reconfigurable antenna array according to claim 7, characterized in that: A rotating rod (22) is provided at the top of the second turbofan (21), a first transmission wheel (24) is provided in the air inlet passage (3), a first transmission belt (23) is provided on the rod below the blades of the second turbofan (21), and the second turbofan (21) drives the first transmission wheel (24) to rotate via the first transmission belt (23).

9. The satellite antenna with a reconfigurable antenna array according to claim 8, characterized in that: 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) and symmetrically to the second transmission wheel (25); a second transmission belt (26) is provided on the second transmission wheel (25) and the positioning rod; and a magnetic suction block (27) matching the magnetic cleaning rod (15) is fixedly connected to the outer surface of the second transmission belt (26).

10. A vehicle comprising a satellite antenna with a reconfigurable antenna array as claimed in any one of claims 1 to 9, characterized in that: Also includes: The vehicle body (1) serves as a carrier of the satellite antenna, and the mounting chassis (6) is mounted on the vehicle body (1).

Images