Novel wingtip combined navigation light for unmanned aerial vehicle

Abstract

The application relates to a new wing tip combined navigation light for a UAV, which comprises navigation light bodies arranged on left and right wings of the UAV respectively, wherein the navigation light body comprises a lampshade, a pressing plate, a shell, a printed board assembly, a cover plate, an electric connector and a light source assembly; the lampshade covers the shell; the pressing plate is arranged above both ends of the lampshade; the lampshade is fixed on the shell through the vertical pressing force of the pressing plate; the surface of the lampshade is provided with a prism structure and a pearl surface structure; the lampshade, the prism and the pearl surface are integrally processed; in general, the lampshade, the prism and the pearl surface are integrally designed; compared with the prior art, the spatial light distribution is more in line with the corresponding index requirements; the navigation light has the advantages of small volume, light weight, compact structure and being beneficial to product miniaturization and integration; and the navigation light provides technical support for precise light distribution of the UAV combined navigation light.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aviation exterior lighting technology, in particular to a new wingtip combined navigation light for unmanned aerial vehicle. BACKGROUND

[0002] The combined navigation light system belongs to a kind of exterior lighting system, in the field of military reconnaissance, combined navigation light is widely used on unmanned aerial vehicle aircraft, when flying at night and in poor visibility, it can provide visual orientation information about the attitude and position of the aircraft to other pilots, and also provide signals such as aircraft profile and flight direction to the ground and other aircraft to prevent collision between aircrafts;Most of the combined navigation lights are located at the left wingtip and right wingtip, and cooperate with the anti-collision lights, therefore, each type of unmanned aerial vehicle will configure the combined navigation light as a standard, but unlike large aircraft, due to the limitation of unmanned aerial vehicle model and size, the volume and weight of the combined navigation light are quite strict, generally the volume (length, width, height) should not be more than 97mm x 21mm x 45mm, and the weight should not exceed 100g.

[0003] At present, the mainstream combined navigation light is mainly based on LED lighting technology, and the main way to realize the combined navigation light lighting generally includes natural light distribution design using structure and LED Lambert distribution and secondary light distribution using parabolic reflector, but the above two structures cannot realize the weight and volume requirements of the combined navigation light, and cannot meet the needs of unmanned aerial vehicle;Therefore, in order to meet the lighting needs of unmanned aerial vehicle model with volume (length, width, height) not more than 97mm x 21mm x 45mm and weight not more than 100g, a new wingtip combined navigation light for unmanned aerial vehicle is needed to solve the above problems. SUMMARY

[0004] Therefore, the present application provides a new wingtip combined navigation light for unmanned aerial vehicle, which is applied to the field of aviation exterior lighting technology, and solves the technical problems of large volume, high power consumption, poor lighting effect and inability to meet the lighting needs of unmanned aerial vehicle model of the existing combined navigation light.

[0005] To achieve the above purpose, the present application provides the following technical scheme:

[0006] The utility model provides a new unmanned aerial vehicle wing tip combination navigation light, including navigation light body, navigation light body sets up on the left wing and right wing of unmanned aerial vehicle respectively, and navigation light body includes lamp shade, pressing plate, shell, printed board subassembly, cover, electric connector and light source subassembly, lamp shade covers the top of shell, pressing plate sets up the top of both ends of lamp shade, and the vertical direction of pressing plate is fixed on the shell through the pressure of pressing plate, the surface of lamp shade is provided with prism structure and pearl surface structure, and lamp shade, prism and pearl surface are made into one piece, the prism structure changes the propagation direction of part light, makes 0 degree light intensity increase, pearl surface structure makes light evenly distribute, avoids uneven light distribution, and lamp shade is optical distribution element, can also protect light source, makes light evenly distribute through lamp shade, solves the problem that 0 degree light intensity is weak or even not enough in combination navigation light technology, makes combination navigation light light performance evenness good, reduces the cost of combination navigation light, overcomes the problem that the existing combination navigation light occupies large space, space light distribution can not meet the existing requirements and exists glare condition.

[0007] The light source subassembly includes a forward navigation light friendly mode light source and a rearward navigation light friendly mode light source.

[0008] Further, the forward navigation light friendly mode light source includes a group of LED lights composed of six red LED lights or six green LED lights, and the rearward navigation light friendly mode light source includes a group of LED lights composed of four white LED lights.

[0009] Further, the light source subassembly and the printed board subassembly are installed on the shell and located inside the lamp shade, and the printed board subassembly is electrically connected to the light source subassembly through a connecting line.

[0010] Further, the cover is fixedly connected to one end of the shell away from the lamp shade, the printed board subassembly is arranged between the shell and the cover, the electric connector is arranged at the outer end of the cover, and the electric connector is electrically connected to the inside of the light source subassembly and the printed board subassembly through connecting lines.

[0011] Further, the prism structure on the lampshade is used to complete the precise distribution of the free curve based on the area light source by using the MATLAB software, the prism curve is accurately calculated, so that the curve is stretched and rotated to obtain a secondary distribution prism, and the bead surface structure on the lampshade is used to complete the precise debugging of the 3D three-dimensional texture by using the LightTools software, and the optimal secondary distribution bead surface is obtained through the LightTools optical software simulation.

[0012] Further, the contact surface of the lampshade and the pressing plate and the contact surface of the lampshade and the shell are coated with sealant HM119B2, which plays a sealing and damping role, the material of the lampshade is organic glass, the outer surface of the lampshade is coated with an anti-aging film, and the prism structure and the bead surface structure are located on the inner surface of the lampshade.

[0013] Further, the pressing plate and the left wing and the right wing of the unmanned aerial vehicle are the same in shape, the two ends of the pressing plate are fixed on the shell through the fastening plate, the pressing plate is tightly attached to the shell under the pressure of the fastening plate, which is beneficial to product drainage and effectively prevents corrosion of the metal surface caused by long-term water accumulation, the contact positions of the two ends of the shell and the pressing plate are provided with positioning columns for ensuring that the shell and the pressing plate are flush in shape, the size and size of the shell and the pressing plate are controlled to ensure the external shape size of the combined navigation light, and the screw mounting hole on the cover plate is coated with sealant HM119B2.

[0014] Further, the shell, the cover plate and the pressing plate are all made of aluminum alloy material, the outer surfaces of the shell, the cover plate and the pressing plate are all provided with corrosion-resistant coating layers, the printed board assembly is a main heating component, the cover plate and the shell are bidirectional heat conduction paths, the working temperature of the printed board assembly is reduced, and the reliability and light efficiency of the product are improved.

[0015] Further, the contact surfaces of the cover plate and the shell and the printed board assembly and the shell are uniformly coated with heat-conducting silicone grease.

[0016] Further, the total height of the lampshade is not more than 14mm.

[0017] The present application has the following beneficial effects:

[0018] 1、The wing tip combined navigation light for unmanned aerial vehicle mentioned in the present application uses forward navigation light source and backward navigation light source as light source components, can use fewer LED lamps with more scientific space light distribution, smaller volume and lighter weight for combined navigation lighting, provides necessary conditions for precise distribution of the wing tip combined navigation light for unmanned aerial vehicle, improves the aerodynamic shape of the aircraft through cooperation of the pressing plate and the lampshade, improves the weather resistance of the product, has the advantages of small volume, light weight, compact structure and being beneficial to small integration of the product.

[0019] 2、The novel wing tip combination navigation light for unmanned aerial vehicle provided by the application, by setting the prism structure and the pearl surface structure on the inner surface of the lampshade, and by integrally processing the lampshade, the prism and the pearl surface, the propagation direction of part of light is changed through the prism structure, the light intensity of 0 degrees is increased, the light is uniformly distributed through the pearl surface structure, uneven light distribution is avoided, and the lampshade is both an optical distribution element and can protect the light source, the light is uniformly distributed through the lampshade, the problems of weak 0-degree light intensity or even insufficient light intensity in the combination navigation light technology are solved, the light performance of the combination navigation light is good in uniformity, and the cost of the combination navigation light is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0021] Figure 1 A structure schematic view of the novel wing tip combination navigation light for unmanned aerial vehicle provided by the application is shown in the figure.

[0022] Figure 2 A structure schematic view of the lampshade in the application is shown in the figure.

[0023] Figure 3 A structure schematic view of the printed board assembly in the application is shown in the figure.

[0024] Figure 4 A connection structure schematic view of the pressing plate and the shell in the application is shown in the figure.

[0025] Figure 5 A light distribution diagram in the horizontal plane of the combination navigation light in the application is shown in the figure.

[0026] Figure 6 A light distribution diagram in the vertical plane of the combination navigation light in the application is shown in the figure.

[0027] 1, lampshade; 2, pressing plate; 3, shell; 4, printed board assembly; 5, cover plate; 6, electrical connector; 7, light source assembly. DETAILED DESCRIPTION

[0028] The embodiments of the application will be described in detail below with reference to the drawings.

[0029] Following, the embodiments of the present application will be described through specific examples, and other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure. It is apparent that the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. The present application can be implemented or applied by other different specific embodiments, and the details in the specification can be modified or changed based on different views and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0030] It is to be understood that the following description describes various aspects of embodiments within the scope of the appended claims. It will be apparent to one of ordinary skill in the art that aspects described herein can be practiced in other forms without departing from the spirit of the aspects. To the extent that there is a conflict or discrepancy between this disclosure and the prior art description, the present disclosure will control. In addition, well-known structures, functions, and features have not been described in detail in order to avoid obscuring the aspects described herein.

[0031] It is also to be understood that the drawings provided herein are for illustrative purposes only and represent a simplified schematic of the basic concepts of the present application, and the components shown in the drawings are only those related to the present application, not drawn according to the number, shape and size of the components in actual implementation, and the shape, number and proportion of each component in actual implementation can be a random change, and the layout of the components can be more complex.

[0032] In addition, in the following description, specific details are provided in order to facilitate a thorough understanding of examples. However, one skilled in the art will understand that the aspects described can be practiced without these specific details.

[0033] Example 1

[0034] As Figures 1 to 6As shown, a new unmanned aerial vehicle wing tip combination navigation light, including navigation light body, navigation light body is arranged on the left wing and right wing of unmanned aerial vehicle respectively, navigation light body includes lampshade 1, pressing plate 2, shell 3, printed board assembly 4, cover plate 5, electric connector 6 and light source assembly 7, lampshade 1 covers on shell 3, pressing plate 2 is arranged on the top of both ends of lampshade 1, and the vertical direction of pressing plate 2 is fixed on shell 3 by the pressing force, the surface of lampshade 1 is provided with prism structure and pearl surface structure, and lampshade 1, prism and pearl surface are made by integral processing; Prism structure changes the propagation direction of part of light, so that the light intensity of 0 degree increases, and pearl surface structure makes light evenly distributed, avoids uneven light distribution, lampshade 1 is an optical light distribution element, and can also protect light source, so that light is evenly distributed through lampshade 1, solves the problem that the 0 degree light intensity is weak or even insufficient in the combination navigation light technology, makes the light performance of combination navigation light uniformity good, reduces the cost of combination navigation light, and overcomes the problems that the existing combination navigation light occupies large space, the space light distribution cannot fully meet the existing requirements and there is glare.

[0035] Light source assembly 7 and printed board assembly 4 are installed on shell 3 and located in the inside of lampshade 1, printed board assembly 4 is electrically connected with light source assembly 7 through connecting line. Cover plate 5 is fixedly connected with the end of shell 3 away from lampshade 1, printed board assembly 4 is arranged between shell 3 and cover plate 5, electric connector 6 is arranged at the outer end of cover plate 5, and electric connector 6 is electrically connected with the inside of light source assembly 7 and printed board assembly 4 through connecting line.

[0036] Printed board assembly 4 has lightning protection and anti-reverse connection functions, a rectifier diode is arranged in the internal circuit, the rectifier diode has single-direction conductivity, so that the current can only flow from the positive pole to the negative pole, and a transient voltage suppression diode is arranged in the internal circuit, so as to increase the lightning resistance of the product.

[0037] Light source assembly 7 includes forward navigation light friendly mode light source and backward navigation light friendly mode light source, the front slope and the rear slope located in the inside of lampshade 1 are arranged on shell 3, the forward navigation light friendly mode light source is arranged on the front slope, the front slope and the horizontal plane of shell 3 form a 125° angle before the horizontal plane, under the refraction of lampshade 1, the light emitted by the forward navigation light friendly mode light source is distributed in 0-110° above shell 3, the backward navigation light friendly mode light source is arranged on the rear slope, the rear slope and the horizontal plane of shell 3 form a 115° angle before the horizontal plane, under the refraction of lampshade 1, the light emitted by the backward navigation light friendly mode light source is distributed in 110-180° above shell 3; The total height of lampshade 1 is not more than 14 mm.

[0038] The forward navigation light friendly mode light source includes a group of LED lamps, which are composed of six red LED lamps, and the backward navigation light friendly mode light source includes a group of LED lamps, which are composed of four white LED lamps.

[0039] The prismatic structure on the lampshade 1 is precisely lighted based on a free curve of a surface light source by using MATLAB software, and the prismatic curve is accurately calculated, so that the curve is stretched and rotated to obtain a secondary light distribution prismatic, and the bead surface structure on the lampshade 1 is precisely debugged by using 3D texture of LightTools software, and the optimal secondary light distribution bead surface is obtained through LightTools optical software simulation, so that the light passing through the lampshade 1 is uniform.

[0040] The contact surface of the lampshade 1 and the pressing plate 2 and the contact surface of the lampshade 1 and the shell 3 are coated with sealant HM119B2, which plays a sealing and damping role, the material of the lampshade 1 is organic glass PC, the outer surface of the lampshade 1 is coated with an anti-aging film, and the prismatic structure and the bead surface structure are located on the inner surface of the lampshade 1, so that the lampshade 1, the prism and the bead surface are integrated.

[0041] The pressing plate 2 and the left wing and the right wing of the unmanned aerial vehicle are the same shape, the two ends of the pressing plate 2 are fixed on the shell 3 through the fastening plate, the pressing plate 2 is tightly attached to the shell 3 under the pressure of the fastening plate, which is beneficial to product drainage and effectively prevents corrosion of the metal surface caused by long-term water accumulation, and the contact position of the two ends of the shell 3 and the pressing plate 2 is provided with a positioning column for ensuring that the shell 3 and the pressing plate 2 are flush in shape, the size and size of the shell 3 and the pressing plate 2 are controlled to ensure the external shape size of the combined navigation light, and the screw mounting hole on the cover plate 5 is coated with sealant HM119B2.

[0042] The shell 3, the cover plate 5 and the pressing plate 2 are all made of aluminum alloy material, the outer surfaces of the shell 3, the cover plate 5 and the pressing plate 2 are provided with weather-resistant polyurethane enamel and anti-corrosion epoxy primer, the thickness of the paint layer is about 80um, the printed board assembly 4 is the main heat generating component, the cover plate 5 and the shell 3 are the bidirectional heat conduction path, which reduces the working temperature of the printed board assembly 4 and improves the reliability and light efficiency of the product. The contact surfaces of the cover plate 5 and the shell 3 and the printed board assembly 4 and the shell 3 are uniformly coated with heat-conducting silicone grease. The shell 3 is fixed on the body of the unmanned aerial vehicle through screws during use.

[0043] In summary, the lampshade, the prism and the bead surface are integrated, compared with the prior art, the spatial light distribution is more in line with the corresponding index requirements, has the advantages of small size, light weight, compact structure and is beneficial to product miniaturization, and provides technical support for precise light distribution of the combined navigation light of the unmanned aerial vehicle.

[0044] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A new wing tip combined navigation light for unmanned aerial vehicle, comprising a navigation light body, which is arranged on the left wing and the right wing of the unmanned aerial vehicle respectively, characterized in that: The navigation light body comprises a lampshade (1), a pressing plate (2), a shell (3), a printed board assembly (4), a cover plate (5), an electric connector (6) and a light source assembly (7), the lampshade (1) covers the shell (3), the pressing plate (2) is arranged above both ends of the lampshade (1), the lampshade (1) is fixed on the shell (3) through the vertical pressing force of the pressing plate (2), the surface of the lampshade (1) is provided with a prism structure and a pearl surface structure, the lampshade (1), the prism and the pearl surface are integrally processed, the light source assembly (7) comprises a forward navigation light friendly mode light source and a backward navigation light friendly mode light source, the shell (3) is provided with a front inclined surface and a rear inclined surface inside the lampshade (1), the forward navigation light friendly mode light source is arranged on the front inclined surface, the front inclined surface and the horizontal plane of the shell (3) form an angle of 125°, the light emitted by the forward navigation light friendly mode light source is distributed above the shell (3) in a range of 0-110° under the refraction of the lampshade (1), the backward navigation light friendly mode light source is arranged on the rear inclined surface, the rear inclined surface and the horizontal plane of the shell (3) form an angle of 115°, the light emitted by the backward navigation light friendly mode light source is distributed above the shell (3) in a range of 110-180° under the refraction of the lampshade (1).

2. A novel wing tip combined navigation light for drones as claimed in claim 1, wherein: The forward navigation light friendly mode light source comprises a group of LED lamps, which are composed of six red LED lamps or six green LED lamps, and the backward navigation light friendly mode light source comprises a group of LED lamps, which are composed of four white LED lamps.

3. A novel wing tip combined navigation light for drones as claimed in claim 2, wherein: The light source assembly (7) and the printed board assembly (4) are installed on the shell (3) and located inside the lampshade (1), the printed board assembly (4) is electrically connected with the light source assembly (7) through a connecting line.

4. A novel wing tip combined navigation light for drones as claimed in claim 3, wherein: The cover plate (5) is fixedly connected with the shell (3) away from the lampshade (1), the printed board assembly (4) is arranged between the shell (3) and the cover plate (5), the electric connector (6) is arranged at the outer end of the cover plate (5), and the electric connector (6) is electrically connected with the inside of the light source assembly (7) and the printed board assembly (4) through connecting lines.

5. A novel wing tip combined navigation light for drones as claimed in claim 4, wherein: The prism structure on the lampshade (1) is precisely calculated by using MATLAB software based on the free curve of the area light source, and the prism curve is obtained, so that the curve is stretched and rotated to obtain a secondary light distribution prism, and the pearl surface structure on the lampshade (1) is precisely adjusted by using the 3D three-dimensional texture of LightTools software, and the optimal secondary light distribution pearl surface is obtained through LightTools optical software simulation.

6. A novel wing tip combined navigation light for drones as claimed in claim 5, wherein: The contact surface of the lampshade (1) and the pressing plate (2) and the contact surface of the lampshade (1) and the shell (3) are respectively coated with sealing glue HM119B2, which plays a sealing and damping role, the material of the lampshade (1) is organic glass, the outer surface of the lampshade (1) is coated with an anti-aging film, and the prism structure and the pearl surface structure are located on the inner surface of the lampshade (1).

7. A novel wing tip combined navigation light for drones as claimed in claim 6, wherein: The pressing plate (2) is identical in shape to the left wing and the right wing of the unmanned aerial vehicle, both ends of the pressing plate (2) are fixed on the shell (3) through fastening plates, the pressing plate (2) is tightly attached to the shell (3) under the pressure of the fastening plates, and positioning columns are arranged at the positions where the two ends of the shell (3) contact the pressing plate (2), so as to ensure that the shell (3) and the pressing plate (2) are flush in shape.

8. A novel wing tip combined navigation light for drones as claimed in claim 7, wherein: The shell (3), the cover plate (5) and the pressing plate (2) are all made of aluminum alloy material, and the outer surfaces of the shell (3), the cover plate (5) and the pressing plate (2) are all provided with corrosion-resistant coating layers.

9. A novel wing tip combined navigation light for drones as claimed in claim 8, wherein: The contact surfaces of the cover plate (5) and the shell (3) and the contact surfaces of the printed board assembly (4) and the shell (3) are uniformly coated with heat-conducting silicone grease.

10. A novel wing tip combined navigation light for drones as claimed in claim 9, wherein: The total height of the lampshade (1) is not more than 14 mm.

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