阅读说明：本技术 用于传感器无人机机翼的蒙皮及其制作方法 (Skin for sensor unmanned aerial vehicle wing and manufacturing method thereof ) 是由 陈亮 李如 刘鑫 胡德英 曹然 于 2020-11-19 设计创作，主要内容包括：本发明公开了一种用于传感器无人机机翼的蒙皮及其制作方法,蒙皮包括由内至外依次层叠的主承力板、泡沫结构层及玻璃纤维板；泡沫结构层内设有天线单元,泡沫结构层与主承力板之间设有反射层。本发明将天线单元与机翼蒙皮一体化设计,既能够满足透波性要求,扩展天线的口径面积,又使机翼结构具备完整性,提高承载效率,降低结构重量系数。(The invention discloses a skin for a sensor unmanned aerial vehicle wing and a manufacturing method thereof, wherein the skin comprises a main bearing plate, a foam structure layer and a glass fiber plate which are sequentially stacked from inside to outside; an antenna unit is arranged in the foam structure layer, and a reflecting layer is arranged between the foam structure layer and the main bearing plate. The invention integrally designs the antenna unit and the wing skin, can meet the wave-transparent requirement, expands the aperture area of the antenna, enables the wing structure to have integrity, improves the bearing efficiency and reduces the weight coefficient of the structure.)

1. The skin for the wings of the sensor unmanned aerial vehicle is characterized by comprising a main bearing plate, a foam structure layer and a glass fiber plate which are sequentially stacked from inside to outside;

an antenna unit is arranged in the foam structure layer, and a reflecting layer is arranged between the foam structure layer and the main bearing plate.

2. The skin for a sensor drone wing of claim 1, wherein the foam structure layer includes a plurality of foam blocks that are spliced together to form a foam slab, the antenna elements being arranged in a serpentine shape along gaps between the plurality of foam blocks.

3. The skin for the wing of the sensor unmanned aerial vehicle of claim 1, wherein the main bearing plate comprises an upper carbon fiber plate, a lower carbon fiber plate and a plurality of foam ribs, the foam ribs are arranged on the bottom surface of the upper carbon fiber plate in a mutually parallel manner along the length direction of the skin, and the lower carbon fiber plate covers the bottom surface of the upper carbon fiber plate and is attached to the surfaces of the foam ribs.

4. The skin for a sensor drone wing of claim 1, further comprising a seal;

carbon wires are filled between the main bearing plate and the glass fiber plate at one end of the skin in the length direction, and the edge sealing is wrapped at the one end of the skin and connected to the main bearing plate and the glass fiber plate so as to seal the carbon wires;

the edge sealing comprises double layers of carbon fiber cloth.

5. The skin for a sensor drone wing of claim 4, wherein at the other end of the skin in the length direction and at the two ends of the skin in the width direction, the fiberglass board and the main bearing board extend out of the edge of the foam structure layer, and the fiberglass board is recessed downward to fit the main bearing board.

6. The skin for a sensor drone wing of claim 1, wherein at the edges of the foam structure layer, the thickness of the foam structure layer is gradually reduced, causing the primary load-bearing plate to gradually tilt towards the fiberglass plate.

7. Method for making a skin for a wing of a sensor drone, for making a skin for a wing of a sensor drone according to any one of claims 1 to 6, characterized in that it comprises the following steps:

1) laying a glass fiber board;

2) manufacturing a foam structure layer;

3) laying a main bearing plate;

4) and sequentially superposing the glass fiber board, the foam structure layer and the main bearing board from top to bottom and integrally curing and molding.

8. The method of claim 7, wherein the foam structure layer comprises a plurality of foam blocks, the plurality of foam blocks are spliced together to form a foam board, and the antenna elements are arranged in a serpentine shape along gaps between the plurality of foam blocks and cover top or bottom surfaces of the foam blocks;

the step 2) comprises the following steps:

2-1) making a plurality of the foam blocks;

2-2) splicing the antenna units into a gap between two adjacent foam blocks to form a foam board;

2-3) adhering a reflecting layer to the lower surface of the foam board.

9. The method for manufacturing the skin of the wing of the sensor unmanned aerial vehicle as claimed in claim 7, wherein the main bearing plate comprises an upper carbon fiber plate, a lower carbon fiber plate and a plurality of foam ribs, the foam ribs are arranged on the bottom surface of the upper carbon fiber plate in parallel and along the length direction of the skin, and the lower carbon fiber plate covers the bottom surface of the upper carbon fiber plate and is attached to the surfaces of the foam ribs;

the step 3) comprises the following steps:

3-1) curing and molding the upper carbon fiber plate;

3-2) carrying out secondary curing molding on the plurality of foam ribs, the lower carbon fiber plate and the upper carbon fiber plate.

10. The method of making a skin for a sensor drone wing of claim 7, wherein the skin further includes a seal; carbon wires are filled between the main bearing plate and the glass fiber plate at one end of the skin in the length direction, and the seal edge is arranged at the one end of the skin and connected to the main bearing plate and the glass fiber plate so as to seal the carbon wires;

the step 4) comprises the following steps: deducting 8-12 mm from the foam structure at one end of the skin in the length direction, filling the foam structure with carbon wires, and sealing the edges.

Technical Field

The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to a skin for a wing of an unmanned aerial vehicle with a sensor and a manufacturing method thereof.

Background

Traditional sensor unmanned aerial vehicle, its sensor subassembly is independent of organism component, receives the restriction that the ripples required passes through, and antenna bore area is less relatively, and the working capacity is limited.

Therefore, the skin for the wings of the sensor unmanned aerial vehicle and the manufacturing method thereof are expected to be developed, the antenna unit and the wing skin are integrally designed, the wave-transparent requirement is met, the aperture area of the antenna is expanded, the wing structure has integrity, the bearing efficiency is improved, and the structural weight coefficient is reduced.

Disclosure of Invention

The invention aims to provide a skin for a sensor unmanned aerial vehicle wing and a manufacturing method thereof, which realize the integrated design of the skin and an antenna unit on the premise of ensuring the normal work of an antenna component in the wing, and meet the requirement of structural integrity.

In order to achieve the purpose, the invention provides a skin for a sensor unmanned aerial vehicle wing, which comprises a main bearing plate, a foam structure layer and a glass fiber plate which are sequentially stacked from inside to outside;

an antenna unit is arranged in the foam structure layer, and a reflecting layer is arranged between the foam structure layer and the main bearing plate.

Optionally, the foam structure layer includes a plurality of foam blocks, the plurality of foam blocks are spliced with each other to form a foam board, and the antenna unit is arranged in a serpentine shape along a gap between the plurality of foam blocks.

Optionally, main bearing plate includes upper carbon fiber board, lower floor's carbon fiber board and a plurality of foam rib, a plurality of foam rib follow the length direction of covering be parallel to each other set up in on the bottom surface of upper carbon fiber board, lower floor's carbon fiber board cover in the bottom surface of upper carbon fiber board and with the surface laminating of a plurality of foam rib.

Optionally, the method further comprises sealing edges;

carbon wires are filled between the main bearing plate and the glass fiber plate at one end of the skin in the length direction, and the edge sealing is wrapped at the one end of the skin and connected to the main bearing plate and the glass fiber plate so as to seal the carbon wires;

the edge sealing comprises double layers of carbon fiber cloth.

Optionally, the other end of the length direction of the skin and the two ends of the width direction of the skin, the glass fiber plate and the main bearing plate extend out of the edge of the foam structure layer, and the glass fiber plate is sunken downwards and attached to the main bearing plate.

Optionally, at the edge of the foam structure layer, the thickness of the foam structure layer is gradually reduced, so that the main bearing plate is gradually inclined towards the glass fiber plate.

The invention also provides a manufacturing method of the skin for the wing of the sensor unmanned aerial vehicle, which is used for manufacturing the skin for the wing of the sensor unmanned aerial vehicle, and the method comprises the following steps:

1) laying a glass fiber board;

2) manufacturing a foam structure layer;

3) laying a main bearing plate;

4) and sequentially superposing the glass fiber board, the foam structure layer and the main bearing board from top to bottom and integrally curing and molding.

Optionally, the foam structure layer includes a plurality of foam blocks, the foam blocks are spliced with each other to form a foam board, and the antenna units are arranged in a serpentine shape along gaps between the foam blocks;

the step 2) comprises the following steps:

2-1) making a plurality of the foam blocks;

2-2) splicing the antenna units into a gap between two adjacent foam blocks to form a foam board;

2-3) adhering a reflecting layer to the lower surface of the foam board.

Optionally, the main bearing plate comprises an upper carbon fiber plate, a lower carbon fiber plate and a plurality of foam ribs, the foam ribs are arranged on the bottom surface of the upper carbon fiber plate in parallel and along the length direction of the skin, and the lower carbon fiber plate covers the bottom surface of the upper carbon fiber plate and is attached to the surfaces of the foam ribs;

the step 3) comprises the following steps:

3-1) curing and molding the upper carbon fiber plate;

3-2) carrying out secondary curing molding on the plurality of foam ribs, the lower carbon fiber plate and the upper carbon fiber plate.

Optionally, the skin further comprises a seal edge; carbon wires are filled between the main bearing plate and the glass fiber plate at one end of the skin in the length direction, and the seal edge is arranged at the one end of the skin and connected to the main bearing plate and the glass fiber plate so as to seal the carbon wires;

the step 4) comprises the following steps: deducting 8-12 mm from the foam structure at one end of the skin in the length direction, filling the foam structure with carbon wires, and sealing the edges.

The invention has the beneficial effects that: the skin of the invention adopts a structure that the main bearing plate, the foam structure layer and the glass fiber plate are sequentially laminated, the antenna unit is arranged in the foam structure layer and integrally designed with the skin, and the reflecting layer is electrically connected, thereby not only ensuring the structural integrity of the wing, but also meeting the wave performance requirement of the antenna unit in the working radiation range, expanding the aperture area of the antenna, simultaneously improving the bearing efficiency of the wing and reducing the weight coefficient of the structure.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.

Fig. 1 shows a schematic view of a skin for a sensor drone wing according to one embodiment of the invention.

Figure 2 illustrates a chordwise cutaway view of a skin for a sensor drone wing according to one embodiment of the invention.

Fig. 3 shows an enlarged view at a of fig. 2.

Fig. 4 shows an enlarged view at B of fig. 2.

Figure 5 shows a cross-sectional view of a skin for a sensor drone wing in a rib spanwise direction, according to one embodiment of the invention.

Fig. 6 shows an enlarged view at C of fig. 5.

Fig. 7 shows an enlarged view at D of fig. 5.

FIG. 8 shows a schematic block diagram of a foam structure layer according to one embodiment of the invention.

Description of the reference numerals

1. A glass fiber board; 2. a foam structure layer; 3. a main bearing plate; 4. an upper carbon fiber sheet; 5. foam ribs; 6. a lower carbon fiber plate; 7. carbon filaments; 8. sealing edges; 9. an antenna unit; 10. and a reflective layer.

Detailed Description

Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

The invention discloses a skin for a sensor unmanned aerial vehicle wing, which comprises a main bearing plate, a foam structure layer and a glass fiber plate which are sequentially stacked from inside to outside;

an antenna unit is arranged in the foam structure layer, and a reflecting layer is arranged between the foam structure layer and the main bearing plate.

Specifically, the skin of the invention adopts a structure that the main bearing plate, the foam structure layer and the glass fiber plate are sequentially laminated, the antenna unit is arranged in the foam structure layer and integrally designed with the skin, and the reflecting layer is electrically continuous, so that the structural integrity of the wing can be ensured, the wave performance requirement of the antenna unit in the working radiation range can be met, the aperture area of the antenna is expanded, the wing bearing efficiency is improved, and the structural weight coefficient is reduced.

As an alternative, the foam structure layer comprises a plurality of foam blocks, the foam blocks are mutually spliced to form the foam board, and the antenna units are arranged in a snake shape along gaps among the foam blocks.

Specifically, the foam structure layer is formed by splicing the foam blocks, the antenna units and the reflecting layer, the installation stability of the antenna units is guaranteed, the aperture area of the antenna is expanded to the maximum extent, the reflecting layer is continuous, and the electromagnetic wave transmitting effect is good.

As an alternative scheme, the main bearing plate comprises an upper-layer carbon fiber plate, a lower-layer carbon fiber plate and a plurality of foam ribs, the foam ribs are arranged on the bottom surface of the upper-layer carbon fiber plate in parallel along the length direction of the skin, and the lower-layer carbon fiber plate covers the bottom surface of the upper-layer carbon fiber plate and is attached to the surfaces of the foam ribs.

Specifically, the main bearing plate adopts double-layer carbon fiber plates, and the foam ribs are arranged between the double-layer carbon fiber plates, so that the strength of the main bearing plate is improved, and the weight of the main bearing plate is reduced.

As an alternative, the method also comprises edge sealing;

carbon wires are filled between the main bearing plate and the glass fiber plate at one end of the skin in the length direction, and the edge seal wraps one end of the skin and is connected to the main bearing plate and the glass fiber plate so as to seal the carbon wires;

the banding includes double-deck carbon cloth.

Specifically, the boundary strength of one end of the root of the skin is improved by filling the carbon filaments and sealing the edges.

As an alternative scheme, at the other end of the skin in the length direction and at the two ends of the skin in the width direction, the glass fiber plate and the main bearing plate extend out of the edge of the foam structure layer, and the glass fiber plate is sunken downwards and attached to the main bearing plate.

Specifically, the glass fiber board and the main bearing board extend out of the edge of the foam structure layer and are mutually attached, the structural strength of the skin is improved, and the bonding position of the glass fiber board and the main bearing board is sunken downwards so as to facilitate the lap joint of the skin.

Alternatively, the thickness of the foam structure layer is gradually reduced at the edge of the foam structure layer, so that the main bearing plate is gradually inclined towards the glass fiber plate.

Specifically, at the edge of the foam structure layer, the thickness of the foam structure layer is gradually reduced, and the main bearing plate is gradually inclined towards the glass fiber plate, so that the edge strength of the skin can be improved.

The invention also discloses a manufacturing method of the skin for the wings of the sensor unmanned aerial vehicle, which is used for manufacturing the skin for the wings of the sensor unmanned aerial vehicle and comprises the following steps:

1) laying a glass fiber board;

2) manufacturing a foam structure layer;

3) laying a main bearing plate;

4) and sequentially superposing the glass fiber board, the foam structure layer and the main bearing board from top to bottom and integrally curing and molding.

Specifically, the skin structure manufactured by the method is high in integration degree and structural stability, strong in bearing capacity and light in weight.

As an alternative, the foam structure layer includes a plurality of foam blocks, and a plurality of foam blocks splice each other and form the cystosepiment, and the antenna element is snakelike setting along the gap between a plurality of foam blocks, and step 2) includes:

2-1) making a plurality of foam blocks;

2-2) splicing the antenna units into a gap between two adjacent foam blocks to form a foam board;

2-3) attaching the reflecting layer to the lower surface of the foam board.

As an alternative, the main bearing plate comprises an upper-layer carbon fiber plate, a lower-layer carbon fiber plate and a plurality of foam ribs, the foam ribs are arranged on the bottom surface of the upper-layer carbon fiber plate in parallel and along the length direction of the skin, and the lower-layer carbon fiber plate covers the bottom surface of the upper-layer carbon fiber plate and is attached to the surfaces of the foam ribs;

the step 3) comprises the following steps:

3-1) curing and molding an upper-layer carbon fiber plate;

and 3-2) carrying out secondary curing molding on the plurality of foam ribs, the lower carbon fiber plate and the upper carbon fiber plate.

Specifically, with a plurality of foam ribs and upper carbon fiber board, lower floor's carbon fiber board integrated curing shaping, guaranteed the structural strength of main load board, and structural stability is high, firm in connection.

As an alternative, the skin further comprises a seal edge; carbon wires are filled between the main bearing plate and the glass fiber plate at one end of the skin in the length direction, and the sealed edge is arranged at one end of the skin and connected to the main bearing plate and the glass fiber plate so as to seal the carbon wires;

the step 4) comprises the following steps: and deducting 8-12 mm from the foam structure at one end of the length direction of the skin, filling the foam structure with carbon wires, and sealing the edges.

Specifically, the carbon filaments are filled and the edge sealing is arranged, so that the boundary strength of the root of the skin is guaranteed.

Example 1

Fig. 1 shows a schematic view of the skin for a sensor drone wing of the present embodiment; FIG. 2 shows a chordwise cross-sectional view of the skin for a sensor drone wing of the present embodiment; FIG. 3 shows an enlarged view at A of FIG. 2; FIG. 4 shows an enlarged view at B of FIG. 2; figure 5 shows a cross-sectional view of the skin for a sensor drone wing of the present embodiment, in the spanwise direction of the ribs; FIG. 6 shows an enlarged view at C of FIG. 5; FIG. 7 shows an enlarged view at D of FIG. 5; fig. 8 shows a schematic structural view of the foam structure layer of the present embodiment.

As shown in fig. 1, the skin for the sensor unmanned aerial vehicle wing comprises a main bearing plate 3, a foam structure layer 2 and a glass fiber plate 1 which are sequentially stacked from inside to outside;

the foam structure layer 2 comprises a plurality of foam blocks which are spliced with one another to form a foam board, the antenna units 9 are arranged in a snake shape along gaps among the foam blocks, and the reflecting layer 10 is arranged between the foam structure layer 2 and the main bearing plate 3, as shown in fig. 8;

as shown in fig. 2, the main bearing plate 3 comprises an upper carbon fiber plate 4, a lower carbon fiber plate 6 and a plurality of foam ribs 5, the plurality of foam ribs 5 are arranged on the bottom surface of the upper carbon fiber plate 4 in parallel along the length direction of the skin, and the lower carbon fiber plate 6 covers the bottom surface of the upper carbon fiber plate 4 and is attached to the surfaces of the plurality of foam ribs 5;

at two ends (namely a rear edge and a front edge, as shown in fig. 3 and 4) of the width direction of the skin and one end (namely a tip part, as shown in fig. 7) of the length direction of the skin, the glass fiber plate 1 and the main bearing plate 3 extend out of the edge of the foam structure layer 2, and the glass fiber plate 1 is sunken downwards to be attached to the main bearing plate 3 for overlapping between the skins; at the edge of the foam structure layer 2, the thickness of the foam structure layer 2 is gradually reduced, so that the main bearing plate 3 is gradually inclined towards the glass fiber plate 1, as shown in fig. 2-7;

as shown in fig. 5 and 6, a carbon fiber 7 is filled between the main bearing plate 3 and the glass fiber plate 1 at one end of the root of the skin, and the seal edge 8 is connected to the main bearing plate 3 and the glass fiber plate 1 to seal the carbon fiber 8, wherein the seal edge 8 is a double-layer carbon fiber cloth.

The invention realizes the integrated design of the skin and the antenna unit on the premise of ensuring the normal work of the antenna unit, can meet the requirement of structural integrity, improves the bearing efficiency of the wing and reduces the structural weight coefficient.

Example 2

The invention also discloses a manufacturing method of the skin, which is used for manufacturing the skin for the wings of the sensor unmanned aerial vehicle in the embodiment 1, and the method comprises the following steps:

1) laying a glass fiber board;

2) manufacturing a plurality of foam blocks;

3) splicing the antenna units in the gaps between two adjacent foam blocks to form a foam board;

4) attaching the reflecting layer to the lower surface of the foam board to form a foam structure layer;

5) laying an upper carbon fiber plate;

6) integrally curing and molding the glass fiber plate, the foam structure layer and the upper carbon fiber plate, so that the glass fiber plates at the front edge, the rear edge and the tip of the skin are sunk and attached to the upper carbon fiber plate;

7) carrying out secondary curing molding on the plurality of foam ribs, the lower carbon fiber plate and the upper carbon fiber plate to form a main bearing plate;

8) and deducting 10mm from the foam structure layer at one end of the root part of the skin, filling the foam structure layer with carbon wires, and sealing the edge.

The skin structure manufactured by the method has high integration degree and structural stability, strong bearing capacity and light weight.

Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.