CN-122026061-A - Composite material spiral antenna tube with integrated structure and function and manufacturing method thereof

CN122026061ACN 122026061 ACN122026061 ACN 122026061ACN-122026061-A

Abstract

The invention relates to the technical field of composite material structures, in particular to a composite material spiral antenna tube with integrated structure and function and a manufacturing method thereof, wherein the composite material spiral antenna tube comprises an inner structure layer, an inner layer adhesive film, a functional layer, an outer layer adhesive film and an outer structure layer which are sequentially arranged from inside to outside, the inner layer adhesive film is respectively adhered with the inner structure layer and the functional layer, and the outer layer adhesive film is respectively adhered with the functional layer and the outer structure layer; the inner structure layer and the outer structure layer are used for supporting the functional layer and participating in structural bearing of the aircraft, the functional layer is used for achieving the function of antenna signal acquisition and transmission, connecting pieces are respectively arranged at two ends of an inner cavity of the inner structure layer and are glued with an outer adhesive film, the functional layer comprises a sandwich, and spiral copper wires are wound outside the sandwich. The invention integrates the mechanical property, wave-transmitting property and information acquisition function of the antenna by design, has the advantages of light weight, high strength, corrosion resistance, oxidation resistance and strong signal transmission acquisition performance, and has structural bearing capacity.

Inventors

ZHU YOUXIN
WU SHUAI
SUN YOUMING
XU JIE
WANG YULIN
MA PENGYUN

Assignees

威海光威复合材料科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260304

Claims (10)

1. The composite material spiral antenna tube (1) is characterized by comprising an inner structural layer (2), an inner adhesive film (3), a functional layer (5), an outer adhesive film (6) and an outer structural layer (7) which are sequentially arranged from inside to outside, wherein the inner adhesive film (3) is respectively adhered to the inner structural layer (2) and the functional layer (5), and the outer adhesive film (6) is respectively adhered to the functional layer (5) and the outer structural layer (7); The inner structure layer (2) and the outer structure layer (7) are used for supporting the functional layer (5) and participating in structural bearing of the aircraft, and the functional layer (5) is used for realizing an antenna signal acquisition and transmission function; connecting pieces (4) are respectively arranged at two ends of the inner cavity of the inner structural layer (2), and the connecting pieces (4) are glued with the outer adhesive film (6); The functional layer (5) comprises a sandwich (501), and a spiral copper wire (502) is wound outside the sandwich (501).
2. The composite material spiral antenna tube integrated with structural functions according to claim 1, wherein the connecting piece (4) comprises a cementing platform (401) and a connecting platform (402) fixedly connected end to end, the outer wall of the cementing platform (401) is cemented with the inner wall of the end part of the inner structural layer (2), the inner cavity of the end part of the outer adhesive film (6) is cemented with the outer wall of the connecting platform (402), and the end parts of the inner adhesive film (3) and the functional layer (5) are respectively abutted with the end part of the connecting platform (402) facing the cementing platform (401).
3. The composite material spiral antenna tube with integrated structural and functional functions according to claim 2, wherein the sandwich (501) is in a cylindrical shape, the spiral copper wires (502) are spirally wound on the outer wall of the sandwich (501), and two ends of the spiral copper wires (502) extend out of the end part of the sandwich (501) and are welded and fixed with the connecting table (402).
4. The composite spiral antenna tube with integrated structural and functional functions according to claim 3, wherein the core (501) comprises two semicircular sub-cores (50101), the two semicircular sub-cores (50101) are spliced and glued and fixed in a butt joint mode, and the spiral copper wire (502) is wound on the outer walls of the two semicircular sub-cores (50101).
5. The composite material spiral antenna tube with integrated structure and function according to claim 3, wherein a spiral long spiral groove (50103) is formed in the outer wall of the sandwich (501), the long spiral groove (50103) is matched with the spiral copper wire (502), and the spiral copper wire (502) is embedded and fixed in the long spiral groove (50103).
6. The composite material spiral antenna tube integrated with structural functions according to claim 3, wherein a short spiral groove (40201) is formed in one end, facing the cementing table (401), of the connecting table (402), the short spiral groove (40201) is matched with the spiral copper wire (502), and the end part of the spiral copper wire (502) is embedded and fixed in the short spiral groove (40201).
7. The composite material spiral antenna tube with integrated structure and function according to claim 1, wherein the connecting piece (4) is provided with a connecting hole (403) in an penetrating way, and the connecting hole (403) is communicated with the inner structure layer (2) and the outside.
8. A method for manufacturing a structural-functional integrated composite material helical antenna tube, for manufacturing the structural-functional integrated composite material helical antenna tube according to any one of claims 1 to 7, comprising the steps of: paving the prepreg of the inner structural layer (2) on the outer surface of the first core mold, then putting the prepreg into curing equipment for curing, demolding after curing, polishing and trimming to obtain the inner structural layer (2); Uniformly paving an inner layer adhesive film (3) on the outer wall of the inner structure layer (2), and then fixing a sandwich (501) of the functional layer (5) on the inner layer adhesive film (3); smearing structural adhesive on the connecting piece (4), inserting the connecting piece (4) into the end part of the inner structural layer (2), adjusting to a set position, and then performing cementing fixation; winding a spiral copper wire (502) on a sandwich (501), adjusting the position, and welding and fixing the end part of the spiral copper wire (502) on a connecting piece (4) to form a functional layer (5); a second core mould (8) is inserted between the two connecting pieces (4), and an outer adhesive film (6) is uniformly paved on the surfaces of the functional layer (5) and the connecting pieces (4); and paving the prepreg of the outer structural layer (7) on the outer surface of the outer adhesive film (6), putting into curing equipment for curing, taking out the second core mold (8) after curing, cleaning and trimming to finish manufacturing.
9. The method for manufacturing a spiral antenna tube made of composite materials with integrated structural and functional functions according to claim 8, wherein in the step of fixing the sandwich (501) of the functional layer (5) on the inner adhesive film (3), an adhesive film is laid on the butt joint surface of the two semicircular sub-sandwich (50101) so that the two semicircular sub-sandwich (50101) are adhered together in the curing process.
10. The method of manufacturing a composite spiral antenna tube with integrated structural and functional capabilities according to claim 9, wherein the width of the butt seam (50102) between the two semicircular sub-cores (50101) is not more than 1mm.

Description

Composite material spiral antenna tube with integrated structure and function and manufacturing method thereof Technical Field The invention relates to the technical field of composite material structures, in particular to a composite material spiral antenna tube with integrated structure and function and a manufacturing method thereof. Background An aircraft antenna is a device for radiating and receiving radio waves, a key component for enabling the exchange of information between an aircraft and the ground, satellite or other aircraft. The existing aircraft antenna generally adopts a split type design of a framework and a coil, the framework and the coil are independent in function, the framework only plays a supporting role, the framework cannot participate in the structural bearing of the aircraft, and the problem of function and structural disjointing exists. The traditional antenna is mostly made of high-conductivity materials such as copper, and the like, and the framework is made of metals such as steel, aluminum and the like, so that the weight of the structure is large, and the corrosion resistance and oxidation resistance of the metal material are poor, so that the service life is easily reduced due to environmental influence. In order to achieve light weight, the prior art attempts to prepare a framework by adopting a carbon fiber composite material, but the carbon fiber composite material has poor wave transmission performance, can have obvious negative influence on the signal transmission efficiency of an antenna, and is difficult to meet the use requirement of an aircraft antenna. At present, an antenna structure which can give consideration to light weight and structural bearing capacity and has excellent wave permeability and signal acquisition and conduction performance does not appear in the industry, Therefore, there is a need to develop a composite spiral antenna tube with integrated structural and functional functions and a manufacturing method thereof, which solve the multiple pain points in the prior art. Disclosure of Invention The invention aims to provide a composite material spiral antenna tube with integrated structure and function and a manufacturing method thereof, so as to solve the problems in the prior art. The invention provides a composite material spiral antenna tube with integrated structure and function, which comprises an inner structure layer, an inner layer adhesive film, a functional layer, an outer layer adhesive film and an outer structure layer which are sequentially arranged from inside to outside, wherein the inner layer adhesive film is respectively adhered to the inner structure layer and the functional layer, and the outer layer adhesive film is respectively adhered to the functional layer and the outer structure layer; the inner structure layer and the outer structure layer are used for supporting the functional layer and participating in structural bearing of the aircraft, and the functional layer is used for realizing the antenna signal acquisition and conduction function; connecting pieces are respectively arranged at two ends of the inner cavity of the inner structure layer, and the connecting pieces are glued with the outer layer adhesive film; The functional layer comprises a sandwich, and a spiral copper wire is wound outside the sandwich. Preferably, the connecting piece comprises a cementing platform and a connecting platform fixedly connected end to end, wherein the outer wall of the cementing platform is cemented with the inner wall of the end part of the inner structural layer, the inner cavity of the end part of the outer adhesive film is cemented with the outer wall of the connecting platform, and the end parts of the inner adhesive film and the functional layer are respectively abutted with the connecting platform towards the end part of the cementing platform. Preferably, the sandwich is cylindrical, the spiral copper wire is spirally wound on the outer wall of the sandwich, and two ends of the spiral copper wire extend out of the end part of the sandwich and are welded and fixed with the connecting table. Preferably, the sandwich comprises two semicircular sub-sandwich bodies, the two semicircular sub-sandwich bodies are in butt joint, combined and fixed in an adhesive joint mode, and the spiral copper wire is wound on the outer walls of the two semicircular sub-sandwich bodies. Preferably, the outer wall of the sandwich is provided with a spiral long spiral groove, the long spiral groove is matched with the spiral copper wire, and the spiral copper wire is embedded and fixed in the long spiral groove. Preferably, a short spiral groove is formed in one end, facing the bonding table, of the connecting table, the short spiral groove is matched with the spiral copper wire, and the end part of the spiral copper wire is embedded and fixed in the short spiral groove. Preferably, the connecting piece is provided with a connecting hole in a penet