Lightweight impact-resistant unmanned aerial vehicle shell

Abstract

The utility model discloses a light-weight shock-resistant unmanned aerial vehicle shell which comprises a shell body, a plurality of supporting arms arranged in a matrix mode are arranged on the outer side of the shell body, a motor installation cover is arranged on the sides, away from the shell body, of the supporting arms, a movable block is arranged above the motor installation cover, and the upper portion of the movable block is fixedly connected with a connecting block. Two symmetrical fan blades are arranged on the outer side of the connecting block, the shell comprises a mixed weaving layer and a polyurethane layer, the mixed weaving layer comprises a carbon fiber layer and a glass fiber layer, and the polyurethane layer comprises a waterproof polyurethane layer and a hard polyurethane foam layer. The unmanned aerial vehicle shell is good in structural stability, streamline design is adopted, the usage amount of carbon fibers and glass fiber materials is reduced, the mass can be reduced by 30%-35% under the same strength and impact resistance, the impact resistance and strength are enhanced through waterproof polyurethane and hard polyurethane, and the service life of the unmanned aerial vehicle shell is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, and in particular to a lightweight, impact-resistant unmanned aerial vehicle shell. Background Art

[0002] As drones are used in the field of agricultural aviation, the larger the payload of drones, the more popular they are with users. The increase in payload undoubtedly requires the corresponding increase in the requirements of various parts of the drone. For example, the drone's arms grow longer, the battery capacity increases, the rotor motor power increases, and the rotor size increases. Existing drone casings are mostly made of multi-layer carbon fiber or glass fiber materials, and also engineering plastics. In pursuit of lightweight, the strength is weak and generally rectangular in design. It can neither protect the internal battery and electronic circuits, nor will it generate corresponding resistance during flight, thereby increasing energy consumption and affecting the range. To this end, we propose a lightweight and impact-resistant drone casing. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a lightweight and impact-resistant UAV shell. The utility model solves the problem that the existing UAV shells are mostly made of multi-layer carbon fiber or glass fiber materials, and also engineering plastics, which are weak in strength in pursuit of lightness and are generally rectangular in design, which can neither protect the internal battery and electronic circuits nor generate corresponding resistance during flight, thereby increasing energy consumption and affecting the flight range.

[0004] A lightweight impact-resistant UAV shell in the utility model comprises a shell, a plurality of support arms arranged in a matrix are arranged on the outer side of the shell, a motor mounting cover is arranged on the side of the support arm away from the shell, a movable block is arranged above the motor mounting cover, the upper part of the movable block is fixedly connected to the connecting block, two symmetrical fan blades are arranged on the outer side of the connecting block, and the shell has the same structure as the support arm;

[0005] The shell comprises a mixed woven layer and a polyurethane layer, the mixed woven layer comprises a carbon fiber layer and a glass fiber layer, the carbon fiber layer and the glass fiber layer are woven in warp and weft, and the polyurethane layer comprises a waterproof polyurethane layer and a hard polyurethane foam layer.

[0006] In the above solution, the mixed braided layer and the polyurethane layer are bonded by epoxy resin.

[0007] In the above solution, both upper and lower sides of the shell are configured as arc surfaces.

[0008] In the above solution, a protective ring is provided on the outer side of the fan blade, and the protective ring is fixedly connected to the support arm.

[0009] In the above solution, a camera mounting bracket is provided in the middle of the lower part of the shell.

[0010] In the above solution, landing gears are provided on both sides below the shell.

[0011] In the above solution, the shell and the support arm are an integrated structure.

[0012] The advantages and beneficial effects of the utility model are as follows: the utility model provides a lightweight impact-resistant UAV shell. Compared with the traditional multi-layer carbon fiber and glass fiber stacking, the setting of a single or double layer mixed woven layer effectively reduces the use of carbon fiber and glass fiber. The waterproof polyurethane layer and the hard polyurethane foam layer make the shell have the characteristics of high strength and light weight, thereby effectively improving the overall impact resistance of the shell. This kind of UAV shell has good structural stability and streamlined design, which reduces the use of carbon fiber and glass fiber materials. Under the same strength and impact resistance, the mass can be reduced by 30%-35%. The use of waterproof polyurethane and hard polyurethane enhances impact resistance and strength, effectively improving the service life of the UAV shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the shell of the utility model;

[0016] Figure 3 This is a schematic structural diagram of part A of the utility model.

[0017] In the figure: 1, shell 11, mixed woven layer 111, carbon fiber layer 112, glass fiber layer 12, polyurethane layer 121, waterproof polyurethane layer 122, hard polyurethane foam layer 2, support arm 3, motor mounting cover 4, movable block 5, connecting block 6, fan blade 7, protective ring 8, camera mounting bracket 9, landing gear. DETAILED DESCRIPTION

[0018] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0019] like Figure 1-3As shown, the utility model is a lightweight impact-resistant UAV shell, including a shell 1, a plurality of support arms 2 arranged in a matrix are arranged on the outside of the shell 1, a motor mounting cover 3 is arranged on the side of the support arm 2 away from the shell 1, a movable block 4 is arranged above the motor mounting cover 3, the movable block 4 is movably connected to the motor mounting cover 3, a motor driving the fan blades 6 can be fixedly installed inside the motor mounting cover 3, the movable block 4 is fixedly connected to the connecting block 5 above, two symmetrical fan blades 6 are arranged on the outside of the connecting block 5, and the shell 1 has the same structure as the support arm 2;

[0020] The shell 1 includes a mixed woven layer 11 and a polyurethane layer 12. The mixed woven layer 11 includes a carbon fiber layer 111 and a glass fiber layer 112. The carbon fiber layer 111 and the glass fiber layer 112 are woven in warp and weft. The mixed woven layer 11 is a single layer or a double layer. Compared with the traditional multi-layer stacking of carbon fiber and glass fiber, the setting of the single layer or the double layer of the mixed woven layer 11 effectively reduces the use of carbon fiber and glass fiber. The polyurethane layer 12 includes a waterproof polyurethane layer 121 and a hard polyurethane foam layer 122. The waterproof polyurethane layer 121 and the hard polyurethane foam layer 122 make the shell 1 have the characteristics of high strength and light weight, thereby effectively improving the overall impact resistance of the shell 1.

[0021] The mixed braided layer 11 and the polyurethane layer 12 are bonded together by epoxy resin.

[0022] The upper and lower sides of the shell 1 are both configured as arc surfaces, and the configuration of the arc surfaces effectively reduces the overall wind resistance of the drone.

[0023] A protective ring 7 is provided on the outside of the fan blade 6, and the protective ring 7 is fixedly connected to the support arm 2. The protective ring 7 can protect the fan blade 6, thereby preventing the fan blade 6 from being damaged due to collision during the flight of the drone.

[0024] A camera mounting bracket 8 is provided at the middle of the lower part of the housing 1 , and a camera for video recording can be fixedly mounted through the camera mounting bracket 8 .

[0025] Both sides of the lower side of the shell 1 are provided with landing gears 9, which can protect the UAV during taking off and landing.

[0026] The shell 1 and the support arm 2 are an integrated structure, and the integrated structure of the shell 1 and the support arm 2 effectively ensures the overall structural strength of the shell.

[0027] Specifically, in the utility model, the mixed woven layer 11 is a single layer or a double layer. Compared with the traditional multi-layer stacking of carbon fiber and glass fiber, the setting of the single layer or double layer of the mixed woven layer 11 effectively reduces the use of carbon fiber and glass fiber. The waterproof polyurethane layer 121 and the hard polyurethane foam layer 122 make the shell 1 have the characteristics of high strength and light weight, thereby effectively improving the overall impact resistance of the shell 1. The protective ring 7 can protect the fan blades 6 to avoid the fan blades 6 being damaged due to bumps during the flight of the drone. The upper and lower sides of the shell 1 are set to arc surfaces, and the setting of the arc surface effectively reduces the overall wind resistance of the drone.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lightweight, impact-resistant UAV casing, comprising a casing (1), It is characterized in that The outer side of the shell (1) is provided with a plurality of support arms (2) arranged in a matrix, the support arm (2) is provided with a motor mounting cover (3) on a side away from the shell (1), a movable block (4) is provided above the motor mounting cover (3), the upper side of the movable block (4) is fixedly connected to a connecting block (5), the outer side of the connecting block (5) is provided with two symmetrical fan blades (6), and the shell (1) and the support arm (2) have the same structure; The shell (1) comprises a mixed woven layer (11) and a polyurethane layer (12), the mixed woven layer (11) comprises a carbon fiber layer (111) and a glass fiber layer (112), the carbon fiber layer (111) and the glass fiber layer (112) are woven in warp and weft, and the polyurethane layer (12) comprises a waterproof polyurethane layer (121) and a hard polyurethane foam layer (122).

2. A lightweight, impact-resistant UAV shell according to claim 1, It is characterized in that The mixed braided layer (11) and the polyurethane layer (12) are bonded together by epoxy resin.

3. A lightweight, impact-resistant UAV shell according to claim 1, It is characterized in that The upper and lower sides of the shell (1) are both configured as arc surfaces.

4. The lightweight, impact-resistant UAV shell according to claim 1, It is characterized in that A protective ring (7) is provided on the outside of the fan blade (6), and the protective ring (7) is fixedly connected to the support arm (2).

5. The lightweight, impact-resistant UAV shell according to claim 1, It is characterized in that A camera mounting frame (8) is provided at the middle portion of the lower portion of the housing (1).

6. The lightweight, impact-resistant UAV shell according to claim 1, It is characterized in that Undercarriages (9) are provided on both sides below the housing (1).

7. The lightweight, impact-resistant UAV shell according to claim 1, It is characterized in that The shell (1) and the support arm (2) are an integrated structure.

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