A composite material antenna housing

Abstract

This utility model discloses a composite material antenna housing, including an outer carbon shell, a shielding copper mesh layer laid inside the outer carbon shell, an inner carbon shell laid inside the shielding copper mesh layer, and a metal connection structure installed at the lower end of the outer carbon shell. The metal connection structure includes: two fixing holes, two fixing slots, two plug-in rods, a connecting block, an operating hole, two plug-in slots, a connecting sleeve, and a fixing component. This utility model relates to the field of antenna housing technology. By laying a copper mesh between the outer and inner carbon shells, a continuous conductive shielding layer is formed, which significantly blocks external electromagnetic interference, ensures the purity of the antenna signal, effectively compensates for the insufficient conductivity of pure carbon fiber composite materials, significantly improves signal transmission quality and anti-interference ability, and at the same time maintains the inherent advantages of high specific strength, high specific stiffness, and lightweight of carbon fiber composite materials.

Description

Technical Field

[0001] This utility model relates to the field of antenna housing technology, specifically to a composite material antenna housing. Background Technology

[0002] Antenna housings are structural support components of antenna equipment. They typically need to have strong structural strength, signal shielding capabilities, sufficient equipment installation space, and light weight. Therefore, traditional antenna housings are made of aluminum alloy, which has good conductivity and high strength, but is heavy, affecting the overall performance and portability of the antenna system. Carbon fiber composite materials are widely used in aerospace and communication equipment fields due to their excellent specific strength, specific stiffness, and lightweight characteristics.

[0003] Furthermore, pure carbon fiber composite shells suffer from insufficient conductivity and electromagnetic shielding performance. The shielding effect of pure carbon fiber shells on electromagnetic interference is limited, which may affect the quality of antenna signal transmission and may lead to signal transmission loss or interference. The connection between existing composite shells and metal components is usually achieved by adhesive bonding or simple mechanical connection, which has problems such as insufficient connection strength, poor reliability, and inconvenience in disassembly and maintenance. In particular, stress concentration at the connection points can easily lead to damage to the composite material, affecting the stability of long-term use and maintenance efficiency. In view of this, there may already be technical means to solve the above problems in the prior art, but this case aims to provide an alternative or replacement technical solution. Utility Model Content

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a composite material antenna housing, including an outer carbon shell, a shielding copper mesh layer is laid inside the outer carbon shell, an inner carbon shell is laid inside the shielding copper mesh layer, and a metal connection structure is installed at the lower end of the outer carbon shell.

[0005] The metal connection structure includes: two fixing holes, two fixing slots, two plug rods, a connecting block, an operating hole, two plug slots, a connecting sleeve, and a fixing component;

[0006] Two fixing holes are respectively opened at the lower ends of both sides of the outer carbon shell, two fixing grooves are respectively opened at both sides of the outer carbon shell and are respectively located below the two fixing holes, two plug-in rods are respectively installed at the lower ends of the inner walls of both sides of the outer carbon shell, the top of the connecting block is movably embedded in the outer carbon shell, the operating hole is opened at the center of the connecting block, two plug-in grooves are respectively opened at the outer walls of the left and right sides of the connecting block, the connecting sleeve is fixedly installed at the lower end of the connecting block, and the fixing assembly is installed at the outer walls of the front and rear sides of the connecting block.

[0007] Preferably, the fixing assembly includes: two fixing sleeves, two fixing rods, two positioning rods, two fixing plates, two threaded sleeves, and two connecting screws;

[0008] Two fixed sleeves are respectively installed on the outer walls of the front and rear sides of the connecting block. One end of each of the two fixed rods is movably inserted through the two fixed holes. Two positioning rods are respectively installed on the lower wall of one end of each of the two fixed rods and are movably embedded in the two fixed sleeves. Two fixed plates are respectively inserted through the two fixed grooves and are fixedly connected to the outer walls of the two fixed sleeves. Two threaded sleeves are respectively fixedly embedded in the two fixed plates. The top ends of the two connecting screws are respectively inserted through one side of each of the two fixed rods, and the bottom ends are movably embedded in the two threaded sleeves.

[0009] Preferably, the insertion slot and the insertion rod are connected by an interference fit.

[0010] Preferably, the connecting sleeve has operating protrusions evenly distributed on its outer side.

[0011] Preferably, the bottom end of the positioning rod is tapered.

[0012] Beneficial effects

[0013] This utility model provides a composite material antenna housing with the following advantages: by laying a copper mesh between the outer and inner carbon shells to form a continuous conductive shielding layer, external electromagnetic interference is significantly blocked, ensuring the purity of the antenna signal. This effectively compensates for the insufficient conductivity of pure carbon fiber composite materials, significantly improving signal transmission quality and anti-interference capability. At the same time, it maintains the inherent advantages of high specific strength, high specific stiffness, and lightweight of carbon fiber composite materials. The interference fit between the plug rod and the plug slot forms a precise and firm initial positioning and main load-bearing connection. The tapered positioning rod is further embedded in the fixing sleeve, providing precise secondary positioning and preventing the connecting block from shifting. The fixing rod passes through the fixing hole and is finally locked by the connecting screw into the threaded sleeve. The multiple mechanical locking mechanisms enhance the connection strength, stiffness, and resistance to vibration and impact, effectively preventing connection loosening or failure. Attached Figure Description

[0014] Figure 1 This is a front view exploded three-dimensional structural diagram of the composite material antenna housing described in this utility model.

[0015] Figure 2 This is a bottom-view exploded three-dimensional structural diagram of the composite material antenna housing described in this utility model.

[0016] Figure 3 This is a schematic diagram of the front cross-sectional structure of a composite material antenna housing according to the present invention.

[0017] In the diagram: 1. Outer carbon shell, 2. Shielding copper mesh layer, 3. Inner carbon shell, 4. Fixing hole, 5. Fixing groove, 6. Plug-in rod, 7. Connecting block, 8. Operating hole, 9. Plug-in groove, 10. Connecting sleeve, 11. Fixing sleeve, 12. Fixing rod, 13. Positioning rod, 14. Fixing plate, 15. Threaded sleeve, 16. Connecting screw, 17. Operating protrusion. Detailed Implementation

[0018] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Example: Please refer to Figure 1-3 A composite material antenna housing includes an outer carbon shell 1, a shielding copper mesh layer 2 is laid inside the outer carbon shell 1, an inner carbon shell 3 is laid inside the shielding copper mesh layer 2, and a metal connection structure is installed at the lower end of the outer carbon shell 1.

[0020] The metal connection structure includes: two fixing holes 4, two fixing slots 5, two plug rods 6, a connecting block 7, an operating hole 8, two plug slots 9, a connecting sleeve 10, and a fixing component;

[0021] Two fixing holes 4 are respectively opened at the lower ends of the outer carbon shell 1 on both sides. Two fixing grooves 5 are respectively opened on both sides of the outer carbon shell 1 and are located below the two fixing holes 4. Two plug rods 6 are respectively installed at the lower ends of the inner walls on both sides of the outer carbon shell 1. The top of the connecting block 7 is movably embedded in the outer carbon shell 1. The operating hole 8 is opened at the center of the connecting block 7. Two plug grooves 9 are respectively opened on the outer walls on the left and right sides of the connecting block 7. The connecting sleeve 10 is fixedly installed at the lower end of the connecting block 7. The fixing components are installed on the outer walls on the front and rear sides of the connecting block 7.

[0022] During the antenna housing molding process, workers first lay the prepreg of the outer carbon shell 1 in a mold, then lay the shielding copper mesh layer 2 on top of the prepreg of the outer carbon shell 1, and finally lay the prepreg of the inner carbon shell 3 on top of the shielding copper mesh layer 2. The outer carbon shell 1, shielding copper mesh layer 2, inner carbon shell 3, and two connector rods 6 are formed using a vacuum autoclave molding method. Subsequently, CNC machining is used to process the two fixing holes 4 and two fixing grooves 5. After machining, the connecting block 7 is embedded into the outer carbon shell. Below the shell 1, two fixing slots 5 are fitted onto the upper ends of two plug rods 6. The interference fit between the plug rods 6 and the plug slots 9 forms a precise and firm initial positioning and main load-bearing connection. Finally, the fixing component is embedded into the fixing slots 5 and fixing holes 4 to further fix the connecting block 7 to the outer carbon shell 1. After assembly, the antenna body can be embedded into the outer carbon shell 1, the shielding copper mesh layer 2, and the inner carbon shell 3 through the operation hole 8 and the connecting sleeve 10, so as to protect the antenna body and shield the signal.

[0023] In the specific implementation process, the fixing components include: two fixing sleeves 11, two fixing rods 12, two positioning rods 13, two fixing plates 14, two threaded sleeves 15, and two connecting screws 16;

[0024] Two fixed sleeves 11 are respectively installed on the outer walls of the front and rear sides of the connecting block 7. One end of each of the two fixed rods 12 is movably inserted through the two fixed holes 4. Two positioning rods 13 are respectively installed on the lower wall of one end of each of the two fixed rods 12 and are movably embedded in the two fixed sleeves 11. Two fixed plates 14 are respectively inserted through the two fixed grooves 5 and are fixedly connected to the outer walls of the two fixed sleeves 11. Two threaded sleeves 15 are respectively fixedly embedded in the two fixed plates 14. The top ends of the two connecting screws 16 are respectively inserted through one side of each of the two fixed rods 12, and the bottom ends are movably embedded in the two threaded sleeves 15.

[0025] When assembling the connecting block 7 and the outer carbon shell 1, the workers first insert one end of the two fixing rods 12 through the two fixing holes 4 inside the outer carbon shell 1. Then, the connecting block 7 is embedded into the bottom of the outer carbon shell 1, and the two fixing sleeves 11 on the outside of the connecting block 7 are fitted onto the upper ends of the two fixing rods 12. Finally, the bottom ends of the two connecting screws 16 are inserted through one end of the two fixing rods 12 respectively and embedded into the threaded sleeves 15 inside the fixing plate 14 to fix the position of the fixing rods 12 a second time, ensuring the connection strength between the outer carbon shell 1 and the connecting block 7, and making the connecting block 7 contact the shielding copper mesh layer 2.

[0026] In the specific implementation process, the insertion slot 9 and the insertion rod 6 are connected by an interference fit to initially position the connecting block 7 and the outer carbon shell 1.

[0027] In the specific implementation process, the outer side of the connecting sleeve 10 is evenly distributed with operating protrusions 17, and the protrusions on the outer side of the connecting sleeve 10 facilitate rotational force application.

[0028] In the specific implementation process, the bottom end of the positioning rod 13 is tapered, which automatically guides the connection when it is embedded in the fixing sleeve 11, ensuring that the connecting block 7 and the outer carbon shell 1 are accurately aligned.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A composite antenna housing comprising an outer carbon shell (1), characterized in that, The outer carbon shell (1) is lined with a shielding copper mesh layer (2), the shielding copper mesh layer (2) is lined with an inner carbon shell (3), and a metal connection structure is installed at the lower end of the outer carbon shell (1). The metal connection structure includes: two fixing holes (4), two fixing slots (5), two plug rods (6), a connecting block (7), an operating hole (8), two plug slots (9), a connecting sleeve (10), and a fixing component; Two fixing holes (4) are respectively opened at the lower ends of the outer carbon shell (1) on both sides. Two fixing grooves (5) are respectively opened at the two sides of the outer carbon shell (1) and are respectively located below the two fixing holes (4). Two plug-in rods (6) are respectively installed at the lower ends of the inner walls on both sides of the outer carbon shell (1). The top of the connecting block (7) is movably embedded in the outer carbon shell (1). The operating hole (8) is opened at the center of the connecting block (7). Two plug-in grooves (9) are respectively opened at the outer walls on the left and right sides of the connecting block (7). The connecting sleeve (10) is fixedly installed at the lower end of the connecting block (7). The fixing component is installed at the outer walls on the front and rear sides of the connecting block (7).

2. The composite material antenna housing according to claim 1, characterized in that, The fixing assembly includes: two fixing sleeves (11), two fixing rods (12), two positioning rods (13), two fixing plates (14), two threaded sleeves (15), and two connecting screws (16); Two fixed sleeves (11) are respectively installed on the outer walls of the front and rear sides of the connecting block (7). One end of each of the two fixed rods (12) is movably inserted through the two fixed holes (4). Two positioning rods (13) are respectively installed on the lower wall of one end of each of the two fixed rods (12) and are movably embedded in the two fixed sleeves (11). Two fixed plates (14) are respectively inserted through the two fixed grooves (5) and are fixedly connected to the outer walls of the two fixed sleeves (11). Two threaded sleeves (15) are respectively fixedly embedded in the two fixed plates (14). The top ends of the two connecting screws (16) are respectively inserted through one side of the two fixed rods (12) and the bottom ends are movably embedded in the two threaded sleeves (15).

3. The composite material antenna housing according to claim 1, characterized in that, The insertion slot (9) and the insertion rod (6) are connected by an interference fit.

4. The composite material antenna housing according to claim 1, characterized in that, The connecting sleeve (10) has operating protrusions (17) evenly distributed on its outer side.

5. A composite material antenna housing according to claim 2, characterized in that, The bottom end of the positioning rod (13) is tapered.

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