High-wave-transparent environment-friendly Beidou antenna protective film

Abstract

The utility model discloses a high-wave-transparent environment-friendly Beidou antenna protective film, which comprises a film body, a mounting hole, a substrate, a centering piece, a flange plate and a Beidou antenna, the film body is of a multi-layer structure and is composed of a core layer, a skin and an anti-corrosion layer, the core layer is made of a honeycomb core material, the skin is made of an ASA / PC resin chemical material, and the anti-corrosion layer is made of a polytetrafluoroethylene material; the layers are bonded together through a high-temperature adhesive film to form a film body which is high in wave transmission rate, high in corrosion resistance, economical and environment-friendly; and the film body is connected with the centering piece through the flange plate, so that the high-wave-transmission environment-friendly Beidou antenna protective film is formed. The wave-transparent ceramic tile has the advantages of being high in wave-transparent rate, high in corrosion resistance, economical, environment-friendly and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of Beidou antenna protection films, in particular to a highly wave-transmissive and environment-friendly Beidou antenna protection film. Background Art

[0002] Beidou antenna is an antenna used to receive Beidou satellite signals. Beidou antenna is usually placed outdoors for work, directly receiving natural storms, snow, dust and sun exposure. After a long time, the harsh external environment will cause the antenna to reduce accuracy, shorten its life and reduce its working reliability, so it is necessary to use Beidou antenna protective film to protect it.

[0003] In the existing technology, the Beidou antenna protective films used on the market are mostly made of two materials: fiberglass and rigid polyvinyl chloride. Both materials have good wave transmittance and corrosion resistance, but fiberglass is prone to generate a large amount of dust during the production process and is difficult to utilize at the end of its life cycle; correspondingly, rigid polyvinyl chloride releases toxic gases during the processing and molding process, causing harm to the human body and causing environmental pollution; therefore, there is room for improvement. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and propose a highly wave-transmitting and environmentally friendly Beidou antenna protective film, which has the advantages of high wave transmittance, strong corrosion resistance, and economic and environmental protection.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A highly wave-transmissive and environment-friendly Beidou antenna protective film, comprising a film body and a substrate, wherein mounting holes are provided at the edges of the substrate, bolts are inserted into the mounting holes, the substrate is connected to the film body by the bolts, a Beidou antenna is arranged inside the film body, and the film body is composed of a core layer, a skin and an anti-corrosion layer from the inside to the outside, and the core layer, the skin and the anti-corrosion layer are bonded to each other by a high-temperature adhesive film;

[0007] The core layer is composed of a honeycomb core material, which includes a plurality of adjacent honeycomb core cells. The honeycomb core cells are regular hexagons. The nodes between adjacent honeycomb core cells are physically woven and connected. Powdered aerogel is filled in the honeycomb core cells.

[0008] The skin is made of ASA / PC resin chemical material, with a wave transmittance of 95%-98%, a dielectric constant of 1.8, a dielectric loss of 0.003, a wall thickness of 2.5mm-3.5mm, and a density of 1.20g / cm 3 ;

[0009] The anti-corrosion layer is obtained by compounding and sintering polytetrafluoroethylene and fiber materials to obtain fiber-reinforced polytetrafluoroethylene fiber cloth, which is stacked on a mold, then compression molded, and then surface sprayed through plasma treatment, with a wall thickness of 0.01mm-0.02mm.

[0010] The utility model is further configured that a plurality of equally spaced fixing holes are provided at the bottom of the substrate, a flange is provided on the inner wall of the fixing hole, a centering piece is threadedly connected to the inner wall of the flange, and the top of the centering piece is connected to the Beidou antenna.

[0011] The utility model is further configured such that the centering piece is a hollow structure, a thread is provided on the inner wall of the centering piece, and the Beidou antenna is connected to the centering piece via the thread.

[0012] The utility model is further configured that the inner hole of the flange is processed into a pipe thread, and the inner wall and outer wall of the flange are connected by matching threaded centering pieces.

[0013] The utility model is further configured that the centering piece is a metal connecting rod with a circular cross-section, and the centering piece is used to connect the Beidou antenna and the flange.

[0014] The utility model is further configured that the membrane body is a quadrangular pyramid structure.

[0015] The utility model is further configured that the substrate is made of carbon fiber composite material.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model adopts ASA / PC resin chemical materials, honeycomb core materials, polytetrafluoroethylene and other environmentally friendly materials to make a multi-layer Beidou antenna protective film, which is more economical and environmentally friendly than traditional antenna protective films;

[0018] 2. The membrane of the utility model adopts a multi-layer structure, and the material used for the skin is ASA / PC resin chemical material, which has both high strength and excellent wave transmission performance, so that the wave transmission rate of the Beidou antenna protection film is higher than 95%, which effectively guarantees the transmission of Beidou signals;

[0019] 3. The utility model uses fiber-reinforced polytetrafluoroethylene material as the anti-corrosion layer material, which can enhance the corrosion resistance of the Beidou antenna protective film and resist the erosion of most acids, alkalis, salts and other chemicals. At the same time, it has good heat resistance and can maintain the physical properties unchanged in a high temperature environment, thus having better durability when subjected to mechanical stress;

[0020] 4. The antenna cover prepared by the utility model uses bolts and threads for installation, which is simple to operate and improves the convenience of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional structural schematic diagram of a high-transmittance, environmentally friendly Beidou antenna protective film proposed by the utility model;

[0022] Figure 2 This is a schematic diagram of the upward structure of a high-transmittance, environmentally friendly Beidou antenna protective film proposed by the utility model;

[0023] Figure 3 This is a schematic cross-sectional structure diagram of a highly wave-transmitting, environmentally friendly Beidou antenna protective film proposed by the utility model;

[0024] Figure 4 This is a schematic diagram of the honeycomb core structure of a highly wave-transmitting, environmentally friendly Beidou antenna protective film proposed in the utility model.

[0025] In the figure: 1. membrane body; 11. core layer; 111. honeycomb core cell; 12. skin; 13. anti-corrosion layer; 2. mounting hole; 3. substrate; 4. centering piece; 5. flange; 6. Beidou antenna. DETAILED DESCRIPTION

[0026] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] Reference Figure 1-4 , a highly wave-transmitting and environment-friendly Beidou antenna protective film, comprising a film body 1, a mounting hole 2, a substrate 3, a centering piece 4, a flange 5, and a Beidou antenna 6;

[0029] The outer surface of the membrane body 1 is smooth and has a white luster. It is in the shape of a quadrangular pyramid, with trapezoidal shapes on all sides and a rectangular shape on the top. The quadrangular pyramid shape helps to reduce wind resistance and friction and avoid the accumulation of ice, snow and rainwater.

[0030] A number of equally spaced fixing holes are provided at the bottom of the substrate 3, and a flange 5 is provided on the inner wall of the fixing hole. The inner wall of the flange 5 is connected to a centering piece 4 through a thread. The inner hole of the flange 5 is processed into a pipe thread and is matched with the threaded centering piece 4 to achieve connection. Among them, the flange 5 adopts a threaded flange, which is a non-welded flange with the characteristics of easy installation and maintenance, and can be used on some pipelines where welding is not allowed on site. The bolt and nut connection method is adopted, which not only facilitates the installation of the Beidou antenna protective film, but also ensures the overall sealing of the antenna cover, and better protects the Beidou antenna inside the Beidou antenna protective film. The substrate 3 is mainly composed of carbon fiber composite materials.

[0031] The centering piece 4 is a hollow structure, and a thread is provided on the inner wall of the centering piece 4. The Beidou antenna 6 is connected to the centering piece 4 through the thread. The centering piece 4 is a round metal connecting rod, which has the characteristics of high mechanical strength and high stability, and is used to connect the Beidou antenna 6 and the flange 5.

[0032] The membrane body 1 is a three-layer structure, including a core layer 11, a skin 12, and an anti-corrosion layer 13, wherein the layers of the membrane body 1 are bonded to each other by a high-temperature adhesive film; wherein the high-temperature adhesive film is a high-temperature resistant adhesive used to maintain the bonding strength and integrity of the components in a high-temperature environment;

[0033] The core layer 11 is composed of a honeycomb core material, which includes a plurality of adjacent honeycomb core cells 111, wherein the honeycomb core cells 111 are regular hexagons with a wall thickness of 0.45 mm to 0.55 mm, and the nodes between adjacent honeycomb core cells 111 are physically braided and connected in a reinforced manner, and powdered aerogel is filled in the honeycomb core cells 111; wherein the physical braiding and connection reinforcement method is used at the honeycomb nodes to replace the traditional chemical bonding method, thereby solving the problem of node connection of the high temperature resistant honeycomb sandwich structure;

[0034] The skin 12 is composed of ASA / PC resin chemical materials, i.e., acrylonitrile-styrene-butadiene terpolymer (ASA) and polycarbonate (PC), with a wave transmittance higher than 95%, a dielectric constant of 1.8, a dielectric loss of 0.003, a wall thickness of 2.5mm-3.5mm, and a density of 1.20g / cm3; wherein, in order to improve the weather resistance of the Beidou antenna protective film, especially the UV resistance and high temperature resistance, the skin 1-2 selects ASA / PC resin chemical materials, and on this basis, a proper amount of UV absorber UV can be added, at this time, the overall comprehensive density of the radome is ≤1.20g / cm3, achieving the requirements of low density and lightweight of the Beidou antenna protective film;

[0035] The anti-corrosion layer 13 is composed of polytetrafluoroethylene material. The fiber-reinforced polytetrafluoroethylene fiber cloth is obtained by compounding and sintering polytetrafluoroethylene and fiber material, stacking it on a mold, and then compression molding it. The surface is then sprayed with plasma treatment to obtain the anti-corrosion layer 13, and the wall thickness is 0.01mm-0.02mm. The polytetrafluoroethylene film has good electrical properties, good environmental resistance, strong resistance to acid, alkali and salt solutions, can withstand a temperature of 220°C, has good corrosion resistance, and high anti-aging performance.

[0036] Working principle: The membrane body 1 adopts a multi-layer structure, and the material used for the skin 12 is ASA / PC resin chemical material, which has both high strength and excellent wave transmission performance, so that the wave transmittance of the Beidou antenna protective film is higher than 95%, effectively ensuring the transmission of Beidou signals; using fiber-reinforced polytetrafluoroethylene material as the anti-corrosion layer 13 material can enhance the corrosion resistance of the Beidou antenna protective film, and can resist the erosion of most acids, alkalis, salts and other chemicals. At the same time, it has good heat resistance and can maintain physical properties unchanged in high temperature environment, so that it has better durability when subjected to mechanical stress; compared with traditional antenna protective films, it is more economical and environmentally friendly.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A highly transparent and environmentally friendly Beidou antenna protective film, comprising a film body (1) and a substrate (3), wherein the substrate (3) is provided with mounting holes (2) at the edges thereof, wherein bolts are inserted into the mounting holes (2), wherein the substrate (3) is connected to the film body (1) by bolts, and a Beidou antenna (6) is arranged inside the film body (1), wherein: The membrane body (1) is composed of a core layer (11), a skin (12) and an anti-corrosion layer (13) from the inside to the outside, and the core layer (11), the skin (12) and the anti-corrosion layer (13) are bonded to each other by a high-temperature adhesive film; The core layer (11) is composed of a honeycomb core material, wherein the honeycomb core material includes a plurality of adjacent honeycomb core cells (111), wherein the honeycomb core cells (111) are regular hexagons, and the nodes between adjacent honeycomb core cells (111) are physically woven and connected, and powdered aerogel is filled in the honeycomb core cells (111); The skin (12) is made of ASA / PC resin chemical material, with a wave transmittance of 95%-98%, a dielectric constant of 1.8, a dielectric loss of 0.003, a wall thickness of 2.5mm-3.5mm, and a density of 1.20g / cm 3 ; The anti-corrosion layer (13) is made of polytetrafluoroethylene material and has a wall thickness of 0.01 mm to 0.02 mm.

2. The highly transparent and environmentally friendly Beidou antenna protective film according to claim 1, characterized in that: The bottom of the substrate (3) is provided with a plurality of fixing holes which are distributed at equal distances, the inner wall of the fixing hole is provided with a flange (5), the inner wall of the flange (5) is connected to a centering piece (4) via threads, and the top of the centering piece (4) is connected to a Beidou antenna (6).

3. The highly transparent and environmentally friendly Beidou antenna protective film according to claim 2, characterized in that: The centering piece (4) is a hollow structure, the inner wall of the centering piece (4) is provided with threads, and the Beidou antenna (6) is connected to the centering piece (4) via the threads.

4. The highly-transparent and environmentally friendly Beidou antenna protective film according to claim 3, characterized in that: The inner hole of the flange (5) is processed into a pipe thread, and the inner wall and outer wall of the flange (5) are connected together with a centering piece (4) with threads.

5. The highly-transmissive and environmentally friendly Beidou antenna protective film according to claim 4, characterized in that: The centering piece (4) is a metal connecting rod with a circular cross section, and the centering piece (4) is used to connect the Beidou antenna (6) and the flange (5).

6. The highly-transmissive and environmentally friendly Beidou antenna protective film according to claim 1, characterized in that: The membrane body (1) is a quadrangular pyramid structure.

7. A highly transparent and environmentally friendly Beidou antenna protective film according to any one of claims 1 to 6, characterized in that: The substrate (3) is made of carbon fiber composite material.

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