Dual-frequency antenna and unmanned aerial vehicle

Abstract

The invention discloses a dual-frequency antenna and an unmanned aerial vehicle, the dual-frequency antenna comprises a substrate, a coaxial line, a grounding piece, a first radiator, a second radiator and a sleeve radiator, the substrate comprises a first surface, the coaxial line comprises an inner conductor and an outer conductor insulated from the inner conductor, the grounding piece is arranged on the first surface and electrically connected with the outer conductor, and the first radiator is electrically connected with the second radiator. The first radiating body is arranged on the first surface and electrically connected with the inner conductor, the first radiating body and the grounding piece are arranged at intervals, the second radiating body is arranged on the first surface and electrically connected with the grounding piece, and the first radiating body and the second radiating body are arranged at intervals so as to feed power to the second radiating body in a coupling mode; and one end of the sleeve radiator is electrically connected with the outer conductor. The dual-frequency antenna disclosed by the invention has the advantages that two antenna frequency bands of 900MHz and 2.45 GHz can be covered at the same time, the omnidirectional radiation performance of the two frequency bands of 900MHz and 2.45 GHz is better, the structure of the antenna can be effectively simplified, and the size of the antenna can be effectively reduced.

Description

Technical Field

[0001] The present invention relates to the field of unmanned aerial vehicles, and in particular to a dual-frequency antenna and an unmanned aerial vehicle using the dual-frequency antenna. Background Art

[0002] With the rapid development of wireless communications and the demand for various business data, antenna design is mainly developing towards miniaturization, multi-band and wide-band. Dual-band (such as 900MHz and 2450MHz) antennas have good omnidirectionality and are widely used in many fields. The two antennas of the existing dual-band antenna are fed simultaneously on the front and back sides of the substrate with two feeding coaxial lines, which makes the antenna feeding structure complicated. In the application, two ports are required to connect to the antenna, which increases the burden on the RF end. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention discloses a dual-frequency antenna and an unmanned aerial vehicle using the dual-frequency antenna.

[0004] In one aspect, the present invention discloses a dual-frequency antenna, comprising:

[0005] a substrate including a first surface;

[0006] A coaxial line, comprising an inner conductor and an outer conductor insulated from the inner conductor;

[0007] A grounding member, disposed on the first surface and electrically connected to the outer conductor;

[0008] A first radiator, disposed on the first surface and electrically connected to the inner conductor, the first radiator being spaced apart from the grounding element;

[0009] A second radiator is disposed on the first surface and electrically connected to the grounding member, the first radiator and the second radiator being spaced apart to couple and feed electricity to the second radiator; and

[0010] The sleeve radiator is sleeved outside the coaxial line and one end of the sleeve radiator is electrically connected to the outer conductor.

[0011] As an improved manner, the first radiator includes a first microstrip line and a first dipole arm, one end of the first microstrip line is connected to the first dipole arm, and the other end is connected to the inner conductor.

[0012] As an improvement, the first radiator also includes a second microstrip line, one end of the second microstrip line is connected to the first dipole arm, and the other end is connected to the first microstrip line, and the second microstrip line extends from the first microstrip line toward the first dipole arm in a form of gradually widening width.

[0013] As an improved manner, two second radiators are provided, and the two second radiators are respectively arranged on both sides of the first microstrip line.

[0014] As an improved manner, each of the second radiators includes a third microstrip line and a second dipole arm, one end of the third microstrip line is connected to the grounding element, and the other end of the third microstrip line is connected to the second dipole arm.

[0015] As an improved manner, the second dipole arm is arranged on a side of the third microstrip line away from the first microstrip line.

[0016] As an improvement, the third microstrip line includes a first extension portion extending from the grounding member toward the first dipole arm and a second extension portion extending from an end of the first extension portion away from the grounding member toward a direction away from the first microstrip line, and the second dipole arm extends from an end of the second extension portion away from the first microstrip toward the grounding member.

[0017] On the other hand, the present invention discloses an unmanned aerial vehicle, including a fuselage, an arm, a tripod, a propeller mechanism and the above-mentioned dual-band antenna, wherein the fuselage is arranged at one end of the arm and connected to the arm, the tripod and the propeller mechanism are arranged at the other end of the arm and connected to the arm, the sleeve radiator is installed in the arm, and the substrate is installed in the tripod.

[0018] As an improved approach, the unmanned aerial vehicle further comprises a fixing member disposed inside the arm to compress and fix the sleeve radiator.

[0019] As an improved manner, the arm includes an upper shell and a lower shell connected to the upper shell, and the fixing member is snap-connected to the upper shell and enclosed with the lower shell to form a first receiving cavity for receiving the sleeve radiator.

[0020] As an improvement, the upper shell includes a top wall and two side walls respectively arranged on two opposite sides of the top wall, each of the side walls is provided with a plurality of convex strips arranged at intervals along the extension direction of the arm, and a plurality of first card grooves corresponding to the convex strips are respectively provided on both sides of the fixing member, and the fixing member is snap-fitted with the upper shell through the cooperation of the convex strips and the first card grooves.

[0021] As an improved approach, the unmanned aerial vehicle further comprises a wire for supplying power to the propeller mechanism and transmitting signals, and the fixing member and the upper shell together form a second receiving cavity for receiving the wire.

[0022] As an improved manner, the tripod includes a third receiving cavity for receiving the substrate, and the inner side wall of the third receiving cavity is provided with two second card slots arranged opposite to each other, and the two sides of the substrate are respectively clamped in the two second card slots.

[0023] The dual-frequency antenna disclosed in the present invention includes a substrate, a coaxial line, a grounding piece, a first radiator, a second radiator and a sleeve radiator. The grounding piece, the first radiator and the second radiator are provided on the first surface of the substrate, the first radiator is connected to the inner conductor of the coaxial line and is spaced apart from the grounding piece, the second radiator is connected to the grounding piece, the first radiator and the second radiator are coupled and fed, and the sleeve radiator is provided to be sleeved outside the coaxial line and one end of the sleeve radiator is electrically connected to the outer conductor. The dual-frequency antenna of this design can cover two dual frequency bands of 900MHz and 2.45GHz at the same time. The first radiator is electrically connected to the inner conductor of the coaxial line, and the second radiator is electrically connected to the outer conductor of the coaxial line through a grounding piece. The first radiator and the second radiator are coupled and fed. In this way, there is no need to set up two coaxial lines to feed the first radiator and the second radiator respectively, which effectively simplifies the structure of the antenna. Since there is no need to set up two coaxial lines to feed the first radiator and the second radiator respectively, the welding points of the first radiator and the second radiator are reduced, the welding process is reduced, and the stability of the product is improved due to the reduction in welding points. In addition, since the two dual frequency bands of 900MHz and 2.45GHz share the first radiator, the size of the dual-frequency antenna is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of a dual-frequency antenna disclosed in an embodiment of the present invention;

[0025] Figure 2 for Figure 1 A partial enlarged schematic diagram in the middle;

[0026] Figure 3 for Figure 1 Schematic diagram of S-parameter test results of the dual-frequency antenna shown in;

[0027] Figure 4 for Figure 1 Schematic diagram of the radiation direction test results of the dual-band antenna in the 900MHz frequency band shown in;

[0028] Figure 5 for Figure 1 Schematic diagram of the radiation direction test results of the dual-band antenna in the 2.45 GHz frequency band shown in;

[0029] Figure 6 A schematic diagram of the structure of an unmanned aerial vehicle disclosed in an embodiment of the present invention;

[0030] Figure 7 for Figure 6 Schematic diagram of the coordination of the aircraft arm, the tripod and the propeller mechanism shown in;

[0031] Figure 8 for Figure 7 An exploded schematic diagram of the structure shown in;

[0032] Fig. 9 for Figure 8 A partial enlarged schematic diagram of point B in the middle;

[0033] Fig.10 It is a structural schematic diagram of the upper casing and the propeller mechanism;

[0034] Fig.11 A schematic cross-sectional view of the machine arm. DETAILED DESCRIPTION

[0035] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0039] See also Figure 1-3The embodiment of the present invention discloses a dual-frequency antenna 100, comprising a substrate 10, a coaxial line 20, a grounding member 30, a first radiator 40, a second radiator 50 and a sleeve radiator 60. The substrate 10 comprises a first surface 11; the coaxial line 20 comprises an inner conductor 21 and an outer conductor 22 insulated from the inner conductor 21; the grounding member 30 is disposed on the first surface 11 and electrically connected to the outer conductor 22; the first radiator 40 is disposed on the first surface 11 and electrically connected to the inner conductor 21, and the first radiator 40 is spaced apart from the grounding member 30; the second radiator 50 is disposed on the first surface 11 and electrically connected to the grounding member 30, and the first radiator 40 is spaced apart from the second radiator 50 to couple and feed the second radiator 50; the sleeve radiator 60 is sleeved outside the coaxial line 20, and one end of the sleeve radiator 60 is electrically connected to the outer conductor 22. Preferably, the inner conductor 21 is fixed to the first radiator 40 by welding, and the outer conductor 22 is fixed to the grounding member 30 by welding.

[0040] In this embodiment, the first radiator 40 and the sleeve radiator 60 constitute a 900 MHz radiating unit, and the first radiator 40 and the second radiator 50 constitute a 2.45 GHz radiating unit, that is, the dual-frequency antenna 100 can simultaneously cover two dual frequency bands of 900 MHz and 2.45 GHz; and by setting the first radiator 40 to be electrically connected to the inner conductor 21 of the coaxial line 20, and the second radiator 50 to be electrically connected to the outer conductor of the coaxial line 20 through the grounding member 30, the first radiator 40 and the second radiator 50 are coupled and fed. In this way, there is no need to set up two coaxial lines 20 to feed the first radiator 40 and the second radiator 50 respectively, which effectively simplifies the structure of the antenna. Since there is no need to set up two coaxial lines 20 to feed the first radiator 40 and the second radiator 50 respectively, the number of welding points of the first radiator 40 and the second radiator 50 is reduced, the welding process is reduced, and the stability of the product is improved due to the reduction in welding points. In addition, since the two dual-frequency bands of 900MHz and 2.45GHz share the first radiator 40, the size of the dual-frequency antenna 100 is effectively reduced.

[0041] Preferably, the sleeve radiator 60 is a copper tube. The sleeve radiator 60 can be a cylinder with a circular cross-sectional profile, a triangular cross-sectional profile, an elliptical cross-sectional profile, a polygonal cross-sectional profile, or an irregular cross-sectional profile, preferably a cylinder with a circular cross-sectional profile.

[0042] In other embodiments, the first radiator 40 includes a first microstrip line 41 and a first dipole arm 42, wherein one end of the first microstrip line 41 is connected to the first dipole arm 42, and the other end is connected to the inner conductor 21. The width of the first dipole arm 42 is greater than the width of the microstrip line 41. Preferably, the projection profile of the first dipole arm 42 in a direction perpendicular to the first surface 11 is rectangular.

[0043] In other embodiments, the first radiator 40 further includes a second microstrip line 43, one end of the second microstrip line 43 is connected to the first dipole arm 42, and the other end is connected to the first microstrip line 41, and the second microstrip line 43 extends from the first microstrip line 41 toward the first dipole arm 42 in a form of gradually widening width. The projection profile of the second microstrip line 43 in a direction perpendicular to the first surface 11 is roughly triangular. By setting the projection profile of the second microstrip line 43 in a direction perpendicular to the first surface 11 to be roughly triangular, the bandwidth of the dual-band antenna 100 in the 2.45 GHz frequency band can be increased.

[0044] In some other embodiments, two second radiators 50 are provided, and the two second radiators 50 are respectively provided on both sides of the first microstrip line 41. By providing two second radiators 50, the radiation performance of the dual-band antenna 100 can be enhanced.

[0045] In other embodiments, each second radiator 50 includes a third microstrip line 51 and a second dipole arm 52, wherein one end of the third microstrip line 51 is connected to the grounding member 30, and the other end is connected to the second dipole arm 52. Preferably, the third microstrip line 51 includes a first extension portion 511 connected to the grounding member 30 at one end and a second extension portion 512 connected to an end of the first extension portion 511 away from the grounding member 30, the first extension portion 511 is parallel to the first microstrip line 41, and the second extension portion 512 is perpendicular to the first microstrip line 41. Preferably, the second dipole arm 52 is parallel to the first microstrip line 41.

[0046] In other embodiments, the second dipole arm 52 is disposed on a side of the third microstrip line 51 away from the first microstrip line 41. That is, the second extension portion 512 extends from an end of the first extension portion 511 away from the grounding member 30 toward a side away from the first microstrip line 41. It can be understood that the second dipole arm 52 can also be disposed on a side of the third microstrip line 51 close to the first microstrip line 41, which can be determined according to actual design requirements.

[0047] The wavelength of the dual-frequency antenna 100 in the 2.45 GHz frequency band is defined as λ1, the wavelength of the dual-frequency antenna 100 in the 900 MHz frequency band is defined as λ2, the length of the first radiator 40 (referring to the distance between the two ends of the first radiator 40 in the length direction of the substrate 10) is defined as L1, the length of the first dipole arm 42 (referring to the distance between the two ends of the first dipole arm 42 in the length direction of the substrate 10) is defined as L2, the length of the second dipole arm 52 (referring to the distance between the two ends of the second dipole arm 52 in the length direction of the substrate 10) is defined as L3, the distance from the connection point of the sleeve radiator 60 and the outer conductor 22 to the connection point of the outer conductor 22 and the grounding member 30 is defined as L4, and the axial length of the sleeve radiator 60 is defined as L5. Preferably, L1=(1 / 8~3 / 4)λ2; preferably, L2=(1 / 8~3 / 4)λ1; preferably, L3=(1 / 8~3 / 4)λ1; preferably, L4+L5=(1 / 8~3 / 4)λ2.

[0048] See also Figure 4-5 , Figure 4 The following shows the radiation direction test results of the dual-band antenna 100 in the 900MHz frequency band. Figure 5 The results of the radiation direction test of the dual-band antenna in the 2.45GHz band are shown. Figure 4 and Figure 5 It can be seen that the dual-band antenna 100 provided in this embodiment has better omnidirectional radiation performance in the 900 MHz frequency band and the 2.45 GHz frequency band, and has a larger standing wave bandwidth.

[0049] See also Figure 1-2 , 6-11. An embodiment of the present invention further provides an unmanned aerial vehicle 800, which includes a fuselage 200, an arm 300, a tripod 400, a propeller mechanism 500 and the above-mentioned dual-band antenna 100. The fuselage 200 is disposed at one end of the arm 300 and connected to the arm 300, the tripod 400 and the propeller mechanism 500 are disposed at the other end of the arm 300 and connected to the arm 300, the sleeve radiator 60 is installed in the arm 300, and the substrate 10 is installed in the tripod 400.

[0050] In this embodiment, since the unmanned aerial vehicle 800 adopts the above-mentioned dual-frequency antenna 100, the unmanned aerial vehicle 800 can simultaneously cover the two antenna frequency bands of 900MHz and 2.45GHz; and there is no need to set two coaxial lines 20 to feed the first radiator 40 and the second radiator 50 respectively, which effectively simplifies the structure of the antenna, reduces the number of welding points of the first radiator 40 and the second radiator 50, reduces the welding process, and improves the stability of the product due to the reduction of welding points. In addition, by installing the sleeve radiator 60 in the arm 300 and installing the substrate 10 in the tripod 400, the unmanned aerial vehicle 800 realizes the built-in antenna, fully utilizes the space of the unmanned aerial vehicle 800, and makes the entire unmanned aerial vehicle 800 have the advantages of small size, delicate structure and low cost.

[0051] In other embodiments, the unmanned aerial vehicle 800 further includes a fixing member 600 disposed inside the arm 300 to compress and fix the sleeve radiator 60. It is understandable that the unmanned aerial vehicle 800 is not limited to fixing the sleeve radiator 60 by providing the fixing member 600. For example, it is also possible to fix the sleeve radiator 60 by providing a space inside the arm 300 just enough to accommodate the sleeve radiator 60. Preferably, the fixing member 600 is made of plastic material.

[0052] In other embodiments, the arm 300 includes an upper shell 301 and a lower shell 302 connected to the upper shell 301 , and the fixing member 600 is snap-connected to the upper shell 301 and encloses the lower shell 302 to form a first receiving cavity 303 for receiving the sleeve radiator 60 .

[0053] In other embodiments, the upper shell 301 includes a top wall 3011 and two side walls 3012 respectively arranged on two opposite sides of the top wall 3011, each side wall 3012 is provided with a plurality of ridges 3013 arranged at intervals along the extension direction of the arm 300, and a plurality of first card grooves 601 corresponding to the ridges 3013 are respectively provided on both sides of the fixing member 600, and the fixing member 601 is snap-fitted with the lower shell 302 through the cooperation between the ridges 3013 and the first card grooves 601.

[0054] In other embodiments, the unmanned aerial vehicle 800 further includes a wire 700 for supplying power to the propeller mechanism and transmitting signals, and the fixing member 600 and the upper shell 301 enclose a second receiving cavity 304 for receiving the wire 700. By providing the fixing member 600 and the upper shell 301 to enclose a second receiving cavity 304 for receiving the wire 700, it can be seen from the above-mentioned embodiment that the sleeve radiator 60 is arranged in the first receiving cavity 303 enclosed by the fixing member 600 and the lower shell 302, so that the sleeve radiator 60 is isolated from the wire 700, and the electrical signal transmitted in the wire 700 is prevented from affecting the radiation performance of the sleeve radiator 60 when the unmanned aerial vehicle 800 is in operation, thereby ensuring the antenna performance.

[0055] The distance between the wire 700 and the sleeve radiator 60 is defined as L6. Preferably, L6=5mm-λ2 / 8.

[0056] In other embodiments, the tripod 400 includes a third receiving cavity 401 for receiving the base plate 10. The inner side wall of the third receiving cavity 401 is provided with two second clamping grooves 402 arranged opposite to each other. The two sides of the base plate 10 are respectively clamped in the two second clamping grooves 402. This arrangement allows the base plate 10 to be firmly fixed in the tripod 400.

[0057] In other embodiments, there are four arms 300 and four tripods 400. Specifically, two arms 300 and two tripods 400 respectively connected to the two arms 300 are provided on both sides of the front end of the fuselage 200, and two arms 300 and two tripods 400 respectively connected to the two arms 300 are also provided on both sides of the rear end of the fuselage 200. Preferably, there are two dual-frequency antennas 100, which are respectively arranged in the arms 300 and the tripods 400 on both sides of the front end of the fuselage 200. By providing two dual-frequency antennas 100, the unmanned aerial vehicle 800 can radiate a better antenna signal.

[0058] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A dual-frequency antenna, characterized in that: include: a substrate including a first surface; A coaxial line, comprising an inner conductor and an outer conductor insulated from the inner conductor; A grounding member, disposed on the first surface and electrically connected to the outer conductor; A first radiator, comprising a first microstrip line, a second microstrip line and a first dipole arm, wherein two ends of the first microstrip line are respectively connected to the first dipole arm and the inner conductor, two ends of the second microstrip line are respectively connected to the first dipole arm and the first microstrip line, a projection profile of the first dipole arm in a direction perpendicular to the first surface is rectangular, and a projection profile of the second microstrip line in a direction perpendicular to the first surface is approximately triangular; The second radiator includes a first extension portion at one end connected to the grounding member and a second extension portion connected to the first extension portion at one end away from the grounding member, the first extension portion is parallel to the first microstrip line, and the second extension portion is perpendicular to the first microstrip line. The sleeve radiator is sleeved outside the coaxial line and one end of the sleeve radiator is electrically connected to the outer conductor.

2. The dual-band antenna according to claim 1, characterized in that: The first radiator is disposed on the first surface and is electrically connected to the inner conductor. The first radiator is spaced apart from the grounding element.

3. The dual-band antenna according to claim 2, characterized in that: The second radiator is disposed on the first surface and is electrically connected to the grounding element.

4. The dual-band antenna according to claim 3, characterized in that: The second microstrip line extends from the first microstrip line toward the first dipole arm in a form of gradually increasing width.

5. The dual-band antenna according to claim 4, characterized in that: The width of the first dipole arm is greater than the width of the microstrip line.

6. The dual-band antenna according to claim 5, characterized in that: Each of the second radiators includes a third microstrip line and a second dipole arm. One end of the third microstrip line is connected to the grounding element, and the other end of the third microstrip line is connected to the second dipole arm.

7. The dual-band antenna according to claim 6, characterized in that: The second dipole arm is parallel to the first microstrip line.

8. The dual-band antenna according to claim 7, characterized in that: The second dipole arm is arranged on a side of the third microstrip line away from the first microstrip line.

9. The dual-band antenna according to claim 8, characterized in that: The third microstrip line includes a first extension portion extending from the grounding member toward the first dipole arm and a second extension portion extending from one end of the first extension portion away from the grounding member toward a direction away from the first microstrip line, and the second dipole arm extends from one end of the second extension portion away from the first microstrip toward the grounding member.

10. An unmanned aerial vehicle, characterized in that: It comprises a fuselage, an arm, a tripod, a propeller mechanism and a dual-band antenna, wherein the fuselage is arranged at one end of the arm and connected to the arm, the tripod and the propeller mechanism are arranged at the other end of the arm and connected to the arm, the sleeve radiator is installed in the arm, and the base plate is installed in the tripod; a substrate including a first surface; A coaxial line, comprising an inner conductor and an outer conductor insulated from the inner conductor; A grounding member, disposed on the first surface and electrically connected to the outer conductor; A first radiator, comprising a first microstrip line, a second microstrip line and a first dipole arm, wherein two ends of the first microstrip line are respectively connected to the first dipole arm and the inner conductor, two ends of the second microstrip line are respectively connected to the first dipole arm and the first microstrip line, a projection profile of the first dipole arm in a direction perpendicular to the first surface is rectangular, and a projection profile of the second microstrip line in a direction perpendicular to the first surface is approximately triangular; The second radiator includes a first extension portion at one end connected to the grounding member and a second extension portion connected to the first extension portion at one end away from the grounding member, the first extension portion is parallel to the first microstrip line, and the second extension portion is perpendicular to the first microstrip line. The sleeve radiator is sleeved outside the coaxial line and one end of the sleeve radiator is electrically connected to the outer conductor.

11. The unmanned aerial vehicle according to claim 10, characterized in that: The unmanned aerial vehicle also includes a fixing member arranged inside the machine arm to compress and fix the sleeve radiator.

12. The unmanned aerial vehicle according to claim 11, characterized in that: The machine arm comprises an upper shell and a lower shell connected to the upper shell, and the fixing member is snap-connected to the upper shell and enclosed with the lower shell to form a first receiving cavity for receiving the sleeve radiator.

13. The unmanned aerial vehicle according to claim 12, characterized in that: The upper shell includes a top wall and two side walls respectively arranged on two opposite sides of the top wall, each of the side walls is provided with a plurality of convex strips arranged at intervals along the extension direction of the machine arm, and a plurality of first card grooves corresponding to the convex strips are respectively provided on both sides of the fixing member, and the fixing member is snap-fitted with the upper shell through the cooperation of the convex strips and the first card grooves.

14. The unmanned aerial vehicle according to claim 13, characterized in that: The unmanned aerial vehicle also includes a wire for supplying power to the propeller mechanism and transmitting signals, and the fixing member and the upper shell are enclosed to form a second receiving cavity for receiving the wire.

15. The unmanned aerial vehicle according to claim 14, characterized in that: The tripod comprises a third receiving cavity for receiving the substrate. The inner side wall of the third receiving cavity is provided with two second clamping grooves which are arranged opposite to each other. The two sides of the substrate are respectively clamped in the two second clamping grooves.

Images