Unmanned aerial vehicle antenna with protection function

Abstract

The utility model discloses an unmanned aerial vehicle antenna with a protection function, which comprises an antenna mounting plate fixed on the surface of an unmanned aerial vehicle shell and an antenna main body arranged on the surface of the antenna mounting plate, the antenna mounting plate is disc-shaped, a slot is formed in the center of the surface of the antenna mounting plate, and the antenna main body is arranged in the slot. The antenna body is provided with a slot, an antenna base for mounting the antenna body is fixedly arranged at the center of the slot, the outer side of the antenna body is sleeved with a heat insulation shell, the bottom of the heat insulation shell is inserted into the slot in a matched mode, and a rotating bottom ring rotationally mounted in the slot is arranged between the antenna base and the heat insulation shell. According to the unmanned aerial vehicle antenna with the protection function, physical protection can be achieved, meanwhile, electromagnetic shielding protection in a certain direction can be achieved through rotation of the shielding heat conduction plate, heat dissipated by the antenna body in the heat insulation shell can be rapidly transmitted outwards, heat preservation and heat insulation are achieved, meanwhile, internal rapid heat dissipation is achieved, and the service life of the antenna is prolonged. And therefore, a multi-synchronous protection effect on the antenna main body can be realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of UAV antennas, and particularly relates to a UAV antenna with a protection function. Background Technique

[0002] A UAV antenna is a signal transmission device connecting the UAV and the ground control station, used to transmit videos, images, data, and control instructions. The UAV antenna plays a crucial role in the design of the UAV, and it can affect the flight distance, flight stability, and signal transmission quality of the UAV. During the flight of the UAV, the UAV may encounter various adverse weather conditions, such as wind, rain, sand, physical collisions, electromagnetic interference, etc. Therefore, through effective protection measures, the aging and loss of the antenna can be reduced, its service life can be extended, and the long-term stable operation of the UAV can be ensured.

[0003] For current UAV antennas, a special protective cover or sheath is usually provided around the antenna, which can effectively prevent external objects, adverse environments, and electromagnetic interference from affecting the antenna, and ensure the stability and reliability of signal transmission. However, when only protected by the protective cover or sheath, the protection effect is relatively single. When monitoring and flying in a harsh environment, it may encounter multiple situations simultaneously, so it may break through the protection and affect the normal flight condition of the UAV. Content of the Utility Model

[0004] The purpose of the utility model is to provide a UAV antenna with a protection function to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A UAV antenna with a protection function includes an antenna mounting plate fixed on the surface of the UAV fuselage and an antenna main body arranged on the surface of the antenna mounting plate. The antenna mounting plate is in a disc shape, and a slot is opened at the center of the surface of the antenna mounting plate, and an antenna base for installing the antenna main body is fixedly provided at the center of the slot. A heat-insulating outer shell is sleeved outside the antenna main body. The bottom of the heat-insulating outer shell fits and inserts into the slot, and a rotating bottom ring rotatably installed in the slot is arranged between the antenna base and the heat-insulating outer shell. And a motor for driving the rotation of the rotating bottom ring is arranged in the antenna base. The top surface of the rotating bottom ring is provided with a shielding heat-conducting plate extending to the top end of the antenna main body, and a heat sink inserted through the UAV fuselage to the inside of the UAV is plugged at the bottom surface of the rotating bottom ring. A heat dissipation member for blowing air is arranged inside the UAV on the outer side of the heat sink. Connecting bolts for fixing penetrate among the heat dissipation member, the UAV fuselage, the antenna mounting plate, and the heat-insulating outer shell.

[0006] Preferably, several internal gears are provided on the inner side of the rotating bottom ring, and a driving main gear meshing with the internal gears is installed on the output shaft of the motor inside the antenna base. The outer side of the rotating bottom ring is closely attached to the inner wall of one end inserted into the slot of the heat insulation housing.

[0007] Preferably, a semi-circular annular chute is formed on the top surface of the rotating bottom ring. The shielding heat conducting plate includes an outer frame plate fixed in the middle of the annular chute and inner sliding plates on both sides inside the outer frame plate. The two inner sliding plates are respectively fitted and attached to both sides of the inner wall of the outer frame plate, and an arc-shaped guide rail for driving the two inner sliding plates to move in opposite directions is provided on the bottom wall of the annular chute.

[0008] Preferably, an annular bottom groove is formed on the bottom surface of the rotating bottom ring. The heat sink includes a heat conducting ring fitted into the annular bottom groove, a heat conducting sheet connecting the bottom end of the heat conducting ring and passing through the drone housing, and heat dissipation fins attached to the inner wall of the drone housing. A heat sink through hole for the heat conducting sheet to pass through is provided on the bottom wall of the slot.

[0009] Preferably, the heat dissipation component includes a heat dissipation fan and a fan mounting bracket for supporting the heat dissipation fan. A plurality of support feet fixed on the inner wall of the drone housing are provided at the outer bottom of the fan mounting bracket, and the air outlet of the heat dissipation fan faces the heat dissipation fins.

[0010] Preferably, four positioning through holes are arranged in an annular array on the outer side of the surface of the antenna mounting plate. An outer connection ring is fixedly sleeved on the outer side of the bottom of the heat insulation housing, and an inner retaining ring pressing on the rotating bottom ring is fixedly provided on the inner side of the bottom of the heat insulation housing. Mounting holes coaxial with the positioning through holes are provided on the surface of the outer connection ring and the support feet of the fan mounting bracket. The connecting bolts sequentially pass through the mounting holes of the support feet of the fan mounting bracket, the drone housing, the positioning through holes of the antenna mounting plate, and the mounting holes of the connection ring.

[0011] Preferably, a sealing buffer ring having the same outer diameter as the heat insulation housing is provided at the outermost side of the bottom of the slot, and the lower outer side of the rotating bottom ring is closely attached to the sealing buffer ring.

[0012] The technical effects and advantages of the present invention are as follows: compared with the existing drone antennas, the drone antenna with protective function has a heat-insulating shell for physical protection on the outside of the antenna body, and a shielded heat-conducting plate is provided between the heat-insulating shell and the antenna body. The shielded heat-conducting plate transfers heat to the heat sink through the rotating bottom ring, and finally the heat is dissipated by the heat dissipation part. Therefore, when the antenna body is used on the drone, it can not only achieve physical protection, but also achieve electromagnetic shielding protection in a certain direction by the rotation of the shielded heat-conducting plate, and quickly transfer the heat dissipated by the antenna body in the heat-insulating shell to the outside, while keeping warm and insulating, achieving rapid internal heat dissipation, and then achieving multiple synchronous protection effects for the antenna body, so that the drone antenna can cope with different usage environments and provide better protection for the safe flight of the drone; in addition, in electromagnetic and heat dissipation protection, the range and position of electromagnetic protection can be adjusted as needed, and the heat dissipation effect can be adjusted as needed to further cope with complex usage environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the back structure of the utility model;

[0015] Figure 3 This is a schematic structural diagram of the antenna mounting plate of the present utility model;

[0016] Figure 4 This is a structural diagram of the utility model when the rotating bottom ring is in a connected state;

[0017] Figure 5 It is a schematic structural diagram of the utility model when cut open;

[0018] Figure 6 This is a schematic diagram of the structure of the shielded heat conducting plate of the present utility model;

[0019] Figure 7 This is a schematic diagram of the heat sink structure of the utility model;

[0020] Figure 8 This is a schematic diagram of the heat dissipation structure of the utility model;

[0021] Figure 9 This is a schematic diagram of the heat-insulating shell structure of the present utility model.

[0022] In the figure: 1, drone housing; 2, antenna mounting plate; 3, heat insulation housing; 4, connecting bolt; 5, heat sink; 6, heat dissipation component; 7, antenna base; 8, antenna main body; 9, sealing buffer ring; 10, rotating bottom ring; 11, shielding heat conduction plate; 201, slot; 202, positioning perforation; 203, heat sink perforation; 301, outer connection ring; 302, inner retaining ring; 51, heat conduction ring; 52, heat conduction sheet; 53, heat dissipation fin; 61, fan mounting bracket; 62, heat dissipation fan; 701, driving main gear; 1001, internal gear; 1002, annular sliding groove; 111, outer frame plate; 112, inner sliding plate. Detailed implementation manner

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Refer to as Figures 1-5A drone antenna with a protective function as shown includes an antenna mounting plate 2 fixed on the surface of the drone housing 1 and an antenna body 8 arranged on the surface of the antenna mounting plate 2. The antenna body 8 is in the shape of a round rod, and the antenna mounting plate 2 is in the shape of a disc. A slot 201 is opened at the center of the surface of the antenna mounting plate 2. The slot 201 is circular, and an antenna base 7 for installing the antenna body 8 is fixedly provided at the center of the slot 201. The antenna base 7 is integrally provided with the antenna mounting plate 2, and the antenna body 8 is fixedly installed on the surface of the antenna base 7. A heat-insulating outer shell 3 is sleeved outside the antenna body 8. The heat-insulating outer shell 3 is made of fiberglass material, which can not only achieve the effects of heat preservation and heat insulation, but also has high strength, light weight and corrosion resistance, and can provide surface protection for the antenna body 8. The heat-insulating outer shell 3 is integrally in the shape of a hollow column with a hemispherical end. There is a gap between the heat-insulating outer shell 3 and the antenna body 8. The bottom of the heat-insulating outer shell 3 is inserted into the slot 201 in a fitting manner, and a rotating bottom ring 10 rotatably installed in the slot 201 is provided between the antenna base 7 and the heat-insulating outer shell 3. And a motor for driving the rotation of the rotating bottom ring 10 is provided in the antenna base 7. A shielding heat-conducting plate 11 extending to the top end of the antenna body 8 is arranged on the top surface of the rotating bottom ring 10. A heat sink 5 passing through the drone housing 1 to the inside of the drone is inserted into the bottom surface of the rotating bottom ring 10. The rotating bottom ring 10 and the shielding heat-conducting plate 11 are both made of aluminum material, which can not only achieve electromagnetic shielding, but also quickly transfer the heat in the heat-insulating outer shell 3 to the heat sink 5 for subsequent heat dissipation. A heat dissipation member 6 for blowing air is arranged inside the drone on the outside of the heat sink 5. Connecting bolts 4 for fixing penetrate between the heat dissipation member 6, the drone housing 1, the antenna mounting plate 2 and the heat-insulating outer shell 3. The whole can be installed in a detachable manner, which is convenient for installation and maintenance at the same time.

[0025] Refer to Figures 2-6 , a plurality of internal gears 1001 are provided on the inner side of the rotating bottom ring 10, and a driving main gear 701 meshing with the internal gears 1001 is installed on the output shaft of the motor in the antenna base 7. It can realize the rotation of the motor driving the rotation of the rotating bottom ring 10. The outer side of the rotating bottom ring 10 closely adheres to the inner wall of one end inserted into the slot 201 of the heat-insulating outer shell 3, ensuring the constant position of the rotating bottom ring 10 in the slot 201 and not being easily separated when rotating.

[0026] Refer to Figures 2-6, in order to adjust the shielding range during the electromagnetic shielding process, or to accelerate the heat transfer rate from the heat-insulating housing 3 to the heat sink 5 during the heat dissipation and heat conduction process, a semi-circular annular sliding groove 1002 is formed on the top surface of the rotating bottom ring 10. The shielding and heat-conducting plate 11 includes an outer frame plate 111 fixed in the middle of the annular sliding groove 1002 and inner sliding plates 112 located on both sides inside the outer frame plate 111. The two inner sliding plates 112 respectively fit against both sides of the inner wall of the outer frame plate 111, and an arc-shaped guide rail for driving the two inner sliding plates 112 to move in opposite directions is provided on the bottom wall of the annular sliding groove 1002. The arc-shaped guide rail adopts the form of an electric guide rail, which can adjust the opposite movement of the two inner sliding plates 112 when starting. Furthermore, when the two inner sliding plates 112 cooperate with the outer frame plate 111, the overall unfolded area inside the heat-insulating housing 3 can be adjusted, and the maximum can be unfolded to cover half of the area of the antenna body 8.

[0027] Refer to Figures 5-7 , in order to ensure that heat can still be transferred to the heat sink 5 when the rotating bottom ring 10 rotates, an annular bottom groove is formed on the bottom surface of the rotating bottom ring 10. The heat sink 5 includes a heat-conducting ring 51 that fits into the annular bottom groove, a heat-conducting sheet 52 that connects the bottom end of the heat-conducting ring 51 and passes through the drone housing 1, and heat dissipation fins 53 that are attached to the inner wall of the drone housing 1. A detachable connection method using screws is adopted between the heat dissipation fins 53 and the heat-conducting sheet 52. A heat sink perforation 203 for the heat-conducting sheet 52 to pass through is provided on the bottom wall of the slot 201. Furthermore, when the heat dissipation fins 53 are attached to the inner wall of the drone housing 1, the stability of the rotating bottom ring 10 in the slot 201 can also be improved.

[0028] Refer to Figures 5-8 , the heat dissipation member 6 includes a heat dissipation fan 62 and a fan mounting bracket 61 for supporting the heat dissipation fan 62. A plurality of support feet fixed to the inner wall of the drone housing 1 are provided at the outer bottom of the fan mounting bracket 61. The air outlet of the heat dissipation fan 62 faces the heat dissipation fins 53. When the heat dissipation fan 62 works, it can accelerate the heat dissipation on the surface of the heat dissipation fins 53, thereby accelerating the heat dissipation inside the heat-insulating housing 3.

[0029] Refer to Figures 3-9, four positioning through holes 202 are arranged in an annular array on the outer side of the surface of the antenna mounting plate 2. An outer connection ring 301 is fixedly sleeved on the outer side of the bottom of the heat insulation housing 3. An inner retaining ring 302 that presses on the rotating bottom ring 10 is fixedly arranged on the inner side of the bottom of the heat insulation housing 3, making the rotation of the rotating bottom ring 10 stable in the slot 201 and also able to improve the friction force of the rotating bottom ring 10 in the slot 201 to a certain extent, so that the rotating bottom ring 10 can only be driven to rotate when the motor is driving. Mounting holes coaxial with the positioning through holes 202 are provided on the surface of the outer connection ring 301 and the legs of the fan mounting bracket 61. The connecting bolt 4 sequentially passes through the mounting holes of the legs of the fan mounting bracket 61, the drone housing 1, the positioning through holes 202 of the antenna mounting plate 2, and the mounting holes of the connection ring to achieve overall connection and improve the stability during overall connection.

[0030] Further, in order to improve the internal and external sealing effect of the heat insulation housing 3, a sealing buffer ring 9 with the same outer diameter as the heat insulation housing 3 is provided at the outermost side of the bottom of the slot 201. During installation, the heat insulation housing 3 presses down on the sealing buffer ring 9, and the lower outer side of the rotating bottom ring 10 closely adheres to the sealing buffer ring 9, which can prevent the rotating bottom ring 10 from rotating due to external forces such as inertia when the motor is not working.

[0031] Specifically, referring to Figures 1-9 , when installing this drone antenna with a protection function, first, the antenna mounting plate 2 is correspondingly installed at the corresponding position of the drone housing 1. Then, the sealing buffer ring 9 is first placed into the slot 201 of the antenna mounting plate 2. After that, the rotating bottom ring 10 and the shielding heat-conducting plate 11 are correspondingly placed into the slot 201, and the heat-conducting sheet 52 connected to the bottom of the rotating bottom ring 10 passes through the heat-dissipating fin through hole 203 at the bottom of the slot 201. Then, the heat insulation housing 3 is sleeved on the outside of the antenna main body 8 and inserted into the slot 201. The bottom of the heat insulation housing 3 presses on the sealing buffer ring 9, the outer connection ring 301 of the heat insulation housing 3 presses on the surface of the antenna mounting plate 2, and the inner retaining ring 302 of the heat insulation housing 3 presses on the surface of the rotating bottom ring 10. After that, the heat-dissipating fins 53 are screwed to the heat-conducting sheet 52 inside the drone housing 1. After the connection is completed, the fan mounting bracket 61 is installed on the inner wall of the drone housing 1, and the connecting bolt 4 is sequentially passed through the legs of the fan mounting bracket 61, the drone housing 1, the antenna mounting plate 2, and the outer connection ring 301 to complete the overall fixation.

[0032] During use, the heat-insulating outer shell 3 made of fiberglass material covers the antenna body 8 inside, forming physical protection for the antenna body 8. At the same time, the fiberglass material can form heat-insulating protection inside and outside the antenna body 8. And the shielding and heat-conducting plate 11 made of aluminum material absorbs the heat generated by the antenna body 8 and transfers it to the heat-dissipating fins 53 through the rotating bottom ring 10, the heat-conducting ring 51 and the heat-conducting sheet 52. Finally, heat dissipation is achieved through the blowing of the heat-dissipating fan 62. At this time, the shielding and heat-conducting plate 11 forms electromagnetic shielding for the antenna body 8. When electromagnetic shielding in a certain direction is required, the motor is started. The motor drives the driving main gear 701 to rotate. With the cooperation of the internal gear 1001, it drives the rotating bottom ring 10 to rotate, and finally drives the shielding and heat-conducting plate 11 to rotate, adjusting the direction of electromagnetic shielding. And when it is necessary to expand the heat-conducting or electromagnetic shielding range, the arc-shaped guide rail at the bottom of the annular sliding groove 1002 of the rotating bottom ring 10 is started, driving the two inner sliding plates 112 to move away from the outer frame plate 111 in the opposite direction.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A drone antenna with a protection function, comprising an antenna mounting plate (2) fixed on the surface of a drone housing (1) and an antenna body (8) arranged on the surface of the antenna mounting plate (2), characterized in that: The antenna mounting plate (2) is disc-shaped. A slot (201) is opened at the center of the surface of the antenna mounting plate (2), and an antenna base (7) for mounting the antenna body (8) is fixedly provided at the center of the slot (201). A heat insulation housing (3) is sleeved outside the antenna body (8). The bottom of the heat insulation housing (3) is inserted into the slot (201) in a fitting manner. A rotating bottom ring (10) rotatably mounted in the slot (201) is provided between the antenna base (7) and the heat insulation housing (3). A motor for driving the rotation of the rotating bottom ring (10) is provided in the antenna base (7). A shielding heat conduction plate (11) extending to the top end of the antenna body (8) is arranged on the top surface of the rotating bottom ring (10). A heat sink (5) inserted through the drone housing (1) to the inside of the drone is plugged into the bottom surface of the rotating bottom ring (10). A heat dissipation member (6) for blowing air is arranged on the outside of the heat sink (5) inside the drone. A connecting bolt (4) for fixing is penetrated among the heat dissipation member (6), the drone housing (1), the antenna mounting plate (2), and the heat insulation housing (3).

2. The drone antenna with a protection function according to claim 1, wherein: A plurality of internal gears (1001) are provided on the inner side of the rotating bottom ring (10). A driving main gear (701) meshing with the internal gears (1001) is mounted on the output shaft of the motor in the antenna base (7). The outer side of the rotating bottom ring (10) is closely inserted into the inner wall of one end of the slot (201) against the heat insulation housing (3).

3. The drone antenna with a protection function according to claim 1, wherein: A semi-circular ring-shaped annular chute (1002) is opened on the top surface of the rotating bottom ring (10). The shielding heat conduction plate (11) includes an outer frame plate (111) fixed in the middle of the annular chute (1002) and inner sliding plates (112) located on both sides inside the outer frame plate (111). The two inner sliding plates (112) are respectively fitted against the inner walls on both sides of the outer frame plate (111), and an arc-shaped guide rail for driving the two inner sliding plates (112) to move in opposite directions is provided on the bottom wall of the annular chute (1002).

4. The drone antenna with a protection function according to claim 3, characterized in that: An annular bottom groove is opened on the bottom surface of the rotating bottom ring (10). The heat sink (5) includes a heat conduction ring (51) fitted into the annular bottom groove, a heat conduction sheet (52) connecting the bottom end of the heat conduction ring (51) and passing through the drone housing (1), and heat dissipation fins (53) attached to the inner wall of the drone housing (1). A heat sink through hole (203) for the heat conduction sheet (52) to pass through is provided on the bottom wall of the slot (201).

5. The drone antenna with a protection function according to claim 4, characterized in that: The heat dissipation member (6) includes a heat dissipation fan (62) and a fan mounting frame (61) supporting the heat dissipation fan (62). A plurality of legs fixed on the inner wall of the drone housing (1) are provided at the outer bottom of the fan mounting frame (61). The air outlet of the heat dissipation fan (62) faces the heat dissipation fins (53).

6. The drone antenna with a protection function according to claim 5, wherein: Four positioning through holes (202) are arranged in an annular array on the outer side of the surface of the antenna mounting plate (2). An outer connection ring (301) is fixedly sleeved on the outer side of the bottom of the heat insulation housing (3). An inner retaining ring (302) pressing on the rotating bottom ring (10) is fixedly arranged on the inner side of the bottom of the heat insulation housing (3). Mounting holes coaxial with the positioning through holes (202) are arranged on the surface of the outer connection ring (301) and the supporting legs of the fan mounting frame (61). The connecting bolts (4) sequentially pass through the mounting holes of the supporting legs of the fan mounting frame (61), the drone housing (1), the positioning through holes (202) of the antenna mounting plate (2), and the mounting holes of the connection ring.

7. The drone antenna with a protection function according to claim 1, wherein: A sealing buffer ring (9) having the same outer diameter as the heat insulation housing (3) is arranged at the outermost side of the bottom of the slot (201). The lower end of the outer side of the rotating bottom ring (10) is closely attached to the sealing buffer ring (9).

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