Integrated aircraft shell

Abstract

The present invention provides an integrated aircraft shell, including a second composite material layer, a third composite material layer, a bulkhead and a top frame, wherein the edges of the third composite material layer and the second composite material layer are fixedly connected to each other through the bulkhead and the top frame, and the third composite material layer and the second composite material layer are stacked up and down; at least one conductive sheet is also sandwiched between the third composite material layer and the second composite material layer. The present invention can assemble and integrate the conductive sheet (aluminum sheet) and the cable with the body shell, which not only improves the strength of the body shell and greatly improves the durability of the circuit, but also makes the cable routing simple and safer, and at the same time, it also improves the assembly speed and is convenient for use; by winding the two ends of the insulating copper wire and the conductive sheet (aluminum sheet) into a circle, the resistance of the conductive sheet (aluminum sheet) remains uniform after power is turned on, thereby improving safety.

Description

Technical Field

[0001] The present invention relates to an aircraft shell, and more particularly to an integrated aircraft shell. Background Art

[0002] An aircraft includes a series of devices such as an unmanned aerial vehicle or a manned aircraft. Existing aircraft usually include a housing, and various electronic devices installed inside the housing. The various electronic devices are electrically connected by wires or flexible printed circuits. This method has the following defects: The wires or flexible printed circuits are exposed inside the housing, and are easily damaged or even broken during disassembly, maintenance and other operations, resulting in the aircraft being unable to work properly. In addition, the wires or flexible printed circuits also occupy the internal installation space of the housing, thereby affecting the layout, disassembly and heat dissipation of other electronic devices; when the number of wires or flexible printed circuits is large, the wiring is prone to be messy, which brings inconvenience to disassembly and maintenance. Moreover, existing housings are usually made of materials such as plastics, with poor strength and easy to be damaged. Summary of the Invention

[0003] The present invention provides an integrated aircraft shell, which can effectively solve the above problems.

[0004] The present invention is implemented as follows:

[0005] The integrated aircraft shell includes a second composite material layer, a third composite material layer, a bulkhead and a top frame.

[0006] The edge of the third composite material layer and the second composite material layer are fixedly connected to each other through the bulkhead and the top frame, and the third composite material layer and the second composite material layer are stacked up and down.

[0007] At least one conductive sheet is further clamped between the third composite material layer and the second composite material layer; both ends of the conductive sheet are wound with copper wires with insulating layers to ensure uniform resistance, and conductive contacts exposed outside are formed.

[0008] A first composite material layer is also fixedly provided on the bottom surface of the second composite material layer.

[0009] Chambers for clamping the top frame are opened on the end faces of the third composite material layer and the second composite material layer.

[0010] A special-shaped docking plate is rotatably provided at one end of the top frame, and a special-shaped groove adapted to the special-shaped docking plate is provided inside the chamber of the third composite material layer.

[0011] Two mounting blocks are fixedly connected to the top frame. The two sides of the special-shaped docking plate are rotatably arranged between the two mounting blocks through a shaft rod, and a torsion spring for rotating the special-shaped docking plate into the special-shaped groove is provided.

[0012] At the position where the bulkhead is butted against the third composite material layer body, a number of panels are fixedly connected; on both sides of the front end face of each panel, convex portions are integrally formed, and a number of clamping grooves are formed on the outer side faces of the convex portions; on both sides of each conductive sheet of the third composite material layer body, side grooves for placing a number of cross plates are provided, a transverse convex plate which is in plug-in fit with the clamping groove is fixedly connected to the front end face of the cross plate, and one end of the transverse convex plate extends out of the side groove;

[0013] A reserved seam for installing the panel is provided between the third composite material layer body and the conductive sheet.

[0014] As a further improvement, a number of upper clamping protrusions are also fixedly provided on the special-shaped docking plate, and a number of upper docking grooves for cooperating with the upper clamping protrusions are provided in the special-shaped groove.

[0015] As a further improvement, a first filling layer and a second filling layer are respectively fixedly connected to the inner parts of the upper and lower arc edges of the bulkhead, and a number of reinforcing ribs are fixedly connected between the first filling layer and the second filling layer.

[0016] As a further improvement, the first filling layer and the second filling layer are made of rubber material to improve the strength of the bulkhead.

[0017] As a further improvement, both the first composite material layer body and the second composite material layer body are made of glass fiber material, and the third composite material layer body is made of glass fiber reinforced plastic material.

[0018] The beneficial effects of the present invention are:

[0019] (1) By integrally installing the conductive sheet (aluminum sheet) and the body shell, while ensuring the strength of the shell, the molding degree of the shell is also improved, making the shell equivalent to a circuit board, thereby greatly improving the durability of the circuit. At the same time, the texture of the aluminum sheet is lighter, and the construction and transportation costs are lower; after the cable can be integrally installed with the body shell, the wiring is more convenient, the assembly is also relatively fast, and after the body shell made of carbon fiber is broken, its elastic modulus is less than that of the metal copper in the cable, so that it can be ensured that the cable will not break under a damage amount greater than that of the body shell, so that the cable can be relatively safely integrated with the body shell.

[0020] (2) By winding the two ends of the copper wire with an insulating layer around the conductive sheet (aluminum sheet), the resistance of the conductive sheet (aluminum sheet) remains uniform after being energized, preventing the copper wire with an insulating layer from being directly spot-welded on the aluminum sheet, resulting in uneven resistance of the power line with a large current and burning out, and improving safety.

[0021] (3) Through the settings of the slot and the top frame and other structures, the body shell can be assembled and spliced with other shells better, ensuring the firmness between the body shell and other shells so that they will not loosen. At the same time, after the two are spliced, when fixing with other connectors such as existing screws, the body shell and other shells will not slide, improving the sealing performance and also facilitating the staff to install other connectors such as screws, which is relatively quick and simple.

[0022] (4) Through the settings of the reinforcing rib and other structures, the strength of the bulkhead can be improved better, avoiding the fracture of the bulkhead, increasing the bearing strength. While increasing the strength of the bulkhead, the strength of the body shell can also be increased, and the forming degree is better.

[0023] (5) Through the settings of the bulkhead and the side groove and other structures, the bulkhead can be spliced and installed with the body shell better. At the same time, the conductive sheet can also be fixed on the third composite material layer body more safely, ensuring that the conductive sheet will not loosen, which is beneficial for subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, so they should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0025] Figure 1 is the front view of the present invention.

[0026] Figure 2 is the exploded view of the present invention.

[0027] Figure 3 is the right view of the present invention.

[0028] Figure 4 is the top view of the panel of the present invention.

[0029] Figure 5 is the cross-sectional view of the bulkhead of the present invention.

[0030] Figure 6 is the structural schematic diagram of the third composite material layer body and the top frame of the present invention.

[0031] Figure 7 is the partial structural schematic diagram of the third composite material layer body of the present invention.

[0032] Figure 8 is the present invention Figure 7 the enlarged view of A in

[0033] Figure 9It is a schematic diagram of the wire winding structure of the conductive sheet of the present invention.

[0034] Explanation of the reference numerals in the drawings:

[0035] 1. First composite material layer; 2. Second composite material layer; 3. Third composite material layer; 4. Bulkhead; 5. Conductive sheet; 6. Panel; 7. Groove; 8. Top frame; 9. Clamping groove; 10. First filling layer; 11. Second filling layer; 12. Reinforcing rib; 13. Special-shaped groove; 14. Upper docking groove; 15. Mounting block; 16. Shaft rod; 17. Torsion spring; 18. Special-shaped docking plate; 19. Upper clamping protrusion; 20. Reserved seam; 21. Side groove; 22. Cross plate; 23. Transverse protrusion plate. Specific embodiments

[0036] To make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0037] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more, unless otherwise specifically defined.

[0038] Referring to Figures 1-9 As shown, the integrated aircraft shell includes a second composite material layer 2, a third composite material layer 3, a bulkhead 4 and a top frame 8. Specifically, there are at least three groups of the second composite material layer 2, the third composite material layer 3 and the first composite material layer 1. The three groups of the second composite material layer 2, the third composite material layer 3 and the first composite material layer 1 include but are not limited to three groups, and may be four groups or several groups, and a suitable number is selected according to actual needs.

[0039] The edge of the third composite material layer body 3 and the second composite material layer body 2 are fixedly connected to each other through the bulkhead 4 and the top frame 8, and the third composite material layer body 3 and the second composite material layer body 2 are stacked up and down.

[0040] At least one conductive sheet 5 is also clamped between the third composite material layer body 3 and the second composite material layer body 2; copper wires with insulating layers are wound around both ends of the conductive sheet 5 to ensure uniform resistance (refer to the appendix Figure 9 ), and exposed conductive contacts are formed. At the same time, both ends of the conductive sheet 5 can also ensure uniform resistance through welding similar to a circuit board socket.

[0041] Preferably, the conductive sheet 5 is an aluminum sheet. The outer shell is preferably made of a material with good conductivity such as carbon fiber. During production, it is preferably made into an integrated accessory with the aluminum sheet by means of pouring, etc., so as to enhance the strength of the outer shell, reduce the difficulty of later assembly of the equipment, and the aluminum sheet and the outer shell have good formability. At the same time, fiberglass can be selected to replace the original insulating layer, and the aluminum sheet has a high affinity with the fiberglass of epoxy resin material, so the strength is higher. The aluminum sheet and the outer shell are integrally arranged, making the outer shell equivalent to a circuit board, greatly improving the durability of the circuit.

[0042] Specifically, as another implementation manner of the present invention, the conductive sheet 5 can also be selected from general conductive materials such as cables, copper, and carbon fiber strips. Among them, the cable is routed and arranged through a specific U-shaped groove (not shown in the figure), so that the cable can be neatly fixed in the sandwich of the outer shell, thereby improving the strength of the outer shell, not shaking inside the casing, simplifying the assembly steps, and the shape of the cable is not limited, and a suitable cable is selected according to the use requirements.

[0043] The copper wires with insulating layers are wound around both ends of the conductive sheet 5 by spot welding. After the conductive sheet 5 and the copper wires with insulating layers are wound, they are then bonded and installed with the third composite material layer body 3. The copper wires with insulating layers wound in one circle can keep the resistance of the aluminum sheet uniform after being energized, avoiding directly spot welding the copper wires with insulating layers on the aluminum sheet, resulting in uneven resistance of the power line with a large current and burning out, and improving safety.

[0044] The bottom surface of the second composite material layer body 2 is also adhesively bonded or integrally formed with the first composite material layer body 1.

[0045] Chambers 7 for clamping the top frame 8 are provided at the end faces of the third composite material layer body 3 and the second composite material layer body 2.

[0046] One end of the top frame 8 is rotatably provided with a special-shaped docking plate 18. Inside the slot 7 of the third composite material layer 3, there is a special-shaped slot 13 adapted to the special-shaped docking plate 18. The top frame 8 is fixedly connected with two mounting blocks 15. The two sides of the special-shaped docking plate 18 are rotatably arranged between the two mounting blocks 15 through a shaft rod 16, and a torsion spring 17 is provided to make the special-shaped docking plate 18 rotate towards the inside of the special-shaped slot 13. Specifically, the torsion spring 17 is sleeved on the outer wall of the shaft rod 16, and the two ends of the torsion spring 17 are respectively connected with the mounting block 15 and the special-shaped docking plate 18, so that the special-shaped docking plate 18 can rotate and rebound by using the torsion spring 17. The special-shaped docking plate 18 is also fixedly provided with a plurality of upper clamping protrusions 19. Specifically, the upper clamping protrusions 19 and the special-shaped docking plate 18 are arranged by welding or integrally formed. The special-shaped slot 13 is provided with a plurality of upper docking slots 14 for cooperating with the upper clamping protrusions 19. Specifically, the inner diameter of the upper docking slot 14 is slightly larger than the outer diameter of the upper clamping protrusions 19.

[0047] When assembling the slot 7 and the top frame 8, the special-shaped docking plate 18 can be folded inwards by the torsion spring 17. After folding, the slot 7 and the top frame 8 are spliced. By using the elasticity of the torsion spring 17, the special-shaped docking plate 18 rebounds towards the special-shaped slot 13, so that the structures such as the special-shaped docking plate 18 and the special-shaped slot 13 are clamped with each other. After the slot 7 and the top frame 8 are spliced, there is a hooking seam (not shown in the figure) reserved between them. A thin iron hook can be inserted into the hooking seam generated by the splicing of the slot 7 and the top frame 8, so that the iron hook can be hooked with the special-shaped docking plate 18 and the special-shaped docking plate 18 and the special-shaped slot 13 are completely clamped, ensuring the firmness of the slot 7 and the top frame 8. Finally, the connection components such as screws in the existing technology are used for secondary fixing, and the effect is better. Thus, the body shell composed of the first composite material layer 1, the second composite material layer 2, the third composite material layer 3 and the conductive sheet 5 is convenient to be connected with other shells, the firmness is improved, and it is not easy to loosen.

[0048] Inside the upper and lower arc edges of the spacer frame 4, a first filling layer 10 and a second filling layer 11 are respectively fixedly connected. Specifically, the first filling layer 10 and the second filling layer 11 are fixedly pasted inside the spacer frame 4. And a plurality of reinforcing ribs 12 are fixedly connected between the first filling layer 10 and the second filling layer 11. Specifically, the reinforcing ribs 12 are adhesively fixed to the first filling layer 10 and the second filling layer 11. The reinforcing ribs 12 are made of nylon material to improve the strength of the spacer frame 4, and the spacer frame 4 can improve the strength of the body and has better formability.

[0049] The first filling layer 10 and the second filling layer 11 are made of rubber material to improve the strength of the spacer frame 4.

[0050] Both the first composite material layer 1 and the second composite material layer 2 are made of glass fiber, and the third composite material layer 3 is made of fiberglass. Specifically, the materials of the first composite material layer 1, the second composite material layer 2, and the third composite material layer 3 can also be selected from Kevlar layers and carbon fiber layers (carbon fiber is a good conductor with strong conductivity), etc. Appropriate material layers can be added according to actual needs, and the layer in contact with the conductive sheet 5 is an insulating layer.

[0051] At the position where the frame 4 is butted against the third composite material layer 3, a number of panels 6 are fixedly connected. Specifically, the panel 6 is connected to the frame 4 by welding; on both sides of the front end face of the panel 6, there are integrally formed protrusions, and a number of clamping grooves 9 are provided on the outer side surfaces of the protrusions; on both sides of each conductive sheet 5 of the third composite material layer 3, there are side grooves 21 for placing a number of cross plates 22. A transverse protrusion plate 23 that is inserted and matched with the clamping groove 9 is fixedly connected to the front end face of the cross plate 22, and one end of the transverse protrusion plate 23 extends out of the side groove 21. Specifically, the transverse protrusion plate 23 and the cross plate 22 are arranged by welding or integrally formed;

[0052] A reserved seam 20 for installing the panel 6 is provided between the third composite material layer 3 and the conductive sheet 5. There is a reserved seam 20 (not shown in the figure) between all five groups of conductive sheets 5 and the third composite material layer 3.

[0053] The working principle of the present invention:

[0054] The conductive sheet 5 is adhesively installed between the first composite material layer 1, the second composite material layer 2, and the third composite material layer 3 to form an integral body, which can also be called the outer shell of the machine body. Subsequently, the frame 4 can insert the panel 6 into the reserved seam 20. The clamping grooves 9 on the protrusions of multiple panels 6 are exactly adapted and clamped with the transverse protrusion plates 23 on the cross plates 22, and the recesses of the panels 6 are also adapted to the conductive sheets 5. Thus, the conductive sheets 5 can be clamped and fixed. Therefore, the frame 4 can be combined and spliced into an integral body with the first composite material layer 1, the second composite material layer 2, the third composite material layer 3, and the conductive sheet 5. The integrated setting can not only ensure the strength of the entire outer shell but also design the outer shell as a circuit board, greatly improving the durability of the circuit; the conductive sheet 5 can also be replaced with a cable. Through special settings, the cable can be neatly arranged between the outer shell structures, which can also enhance the strength of the outer shell, make the cable routing more convenient, and the assembly more rapid.

[0055] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An integrated aircraft shell, comprising a second composite material layer (2), a third composite material layer (3), a bulkhead (4) and a top frame (8), characterized in that: The edges of the third composite material layer (3) and the second composite material layer (2) are fixedly connected to each other via a partition frame (4) and a top frame (8), and the third composite material layer (3) and the second composite material layer (2) are stacked up and down; At least one conductive sheet (5) is sandwiched between the third composite material layer (3) and the second composite material layer (2); both ends of the conductive sheet (5) are wound with copper wires with an insulating layer to ensure uniform resistance, forming exposed conductive contacts; The bottom surface of the second composite material layer (2) is also fixedly provided with the first composite material layer (1); The end surfaces of the third composite material layer (3) and the second composite material layer (2) are both provided with embedding grooves (7) for clamping the top frame (8); A special-shaped docking plate (18) is rotatably provided at one end of the top frame (8), and a special-shaped groove (13) matching the special-shaped docking plate (18) is provided inside the embedding groove (7) of the third composite material layer (3); The top frame (8) is fixedly connected to two mounting blocks (15), and the two sides of the special-shaped docking plate (18) are rotatably arranged between the two mounting blocks (15) through a shaft (16), and a torsion coil spring (17) is provided to enable the special-shaped docking plate (18) to rotate toward the inside of the special-shaped groove (13); The partition frame (4) is fixedly connected to a plurality of panels (6) at a position where it is butted against the third composite material layer (3); both sides of the front end surface of the panel (6) are integrally provided with protrusions, and the outer side surfaces of the protrusions are provided with a plurality of snap-in grooves (9); the third composite material layer (3) is provided with side grooves (21) for accommodating a plurality of transverse plates (22) on both sides of each conductive sheet (5); the front end surface of the transverse plate (22) is fixedly connected with a transverse protrusion plate (23) that is plugged into and matched with the snap-in groove (9), and one end of the transverse protrusion plate (23) extends out of the side groove (21); A reserved gap (20) for mounting the panel (6) is provided between the third composite material layer (3) and the conductive sheet (5).

2. The integrated aircraft shell according to claim 1, characterized in that: The special-shaped docking plate (18) is also fixedly provided with a plurality of upper clamping protrusions (19), and the special-shaped groove (13) is provided with a plurality of upper docking grooves (14) for matching with the upper clamping protrusions (19).

3. The integrated aircraft shell according to claim 1, characterized in that: A first filling layer (10) and a second filling layer (11) are respectively fixedly connected inside the upper and lower arc edges of the partition frame (4), and a plurality of reinforcing ribs (12) are fixedly connected between the first filling layer (10) and the second filling layer (11).

4. The integrated aircraft shell according to claim 3, characterized in that: The first filling layer (10) and the second filling layer (11) are made of rubber material and are used to improve the strength of the bulkhead (4).

5. The integrated aircraft shell according to claim 1, characterized in that: The first composite material layer (1) and the second composite material layer (2) are both made of glass fiber, and the third composite material layer (3) is made of glass fiber reinforced plastic.

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