Carbon fiber tube reinforced external self-similar fractal composite electromagnetic shielding honeycomb structure plate

A honeycomb structure, carbon fiber tube technology, applied in the direction of magnetic field/electric field shielding, electrical components, etc., to achieve the effect of low density, excellent bearing capacity, and reduced wall thickness

Pending Publication Date: 2021-12-07
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problem that the currently used plates for spacecraft not only ensure the absorption of electromagnetic waves but also have excellent bearing capacity. It aims to solve this problem and at the same time realize light weight and improve the physical properties of the plates while meeting the strength requirements. Provide a carbon fiber tube reinforced external self-similar fractal composite electromagnetic shielding honeycomb structure plate, while strengthening the axial mechanical performance, the transverse mechanical performance is also enhanced through the fractal honeycomb structure, and the electromagnetic shielding performance is combined

Method used

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  • Carbon fiber tube reinforced external self-similar fractal composite electromagnetic shielding honeycomb structure plate
  • Carbon fiber tube reinforced external self-similar fractal composite electromagnetic shielding honeycomb structure plate
  • Carbon fiber tube reinforced external self-similar fractal composite electromagnetic shielding honeycomb structure plate

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Embodiment 1

[0034] see Figure 1-3 , a carbon fiber tube reinforced external self-similar fractal composite electromagnetic shielding honeycomb structure plate, the plate is composed of two upper and lower panels and an external self-similar fractal honeycomb structure core 3; the upper and lower two panels are Lightweight high-strength alloy panel 1 and lightweight high-strength alloy lower panel 2;

[0035] The external self-similar fractal honeycomb structure inner core 3 is composed of an external self-similar fractal honeycomb structure, a carbon fiber tube embedded in the center of the honeycomb, and an electromagnetic shielding coating coated on the inner and outer walls of the honeycomb; the external self-similar The fractal honeycomb structure includes two kinds of honeycomb structures, large and small, and a large-scale honeycomb structure is surrounded by 6 small-sized honeycombs. Each small-sized honeycomb is located at the node of the large-sized honeycomb structure, and the ...

Embodiment 2

[0038] This embodiment is basically the same as Embodiment 1, especially in that:

[0039] In an embodiment, the upper and lower panels are made of lightweight high-strength alloy, and the lightweight high-strength alloy material is, but not limited to, aluminum alloy.

[0040] In the embodiment, the external self-similar fractal honeycomb structure inner core 3 is made of lightweight high-strength alloy material, the edge length of the small-sized honeycomb is one third of that of the large-sized honeycomb, and the lightweight high-strength alloy material is made of But it is not limited to the selection of aluminum alloy material to form the lightweight high-strength alloy honeycomb wall 9 .

[0041] In the embodiment, carbon fiber circular tubes are respectively embedded in honeycombs of two different sizes, the outer wall of the circular tube is tangent to the inner wall of the honeycomb, and the height of the circular tube is equal to the height of the inner core of the h...

Embodiment 3

[0048] This embodiment is basically the same as the above-mentioned embodiment, and the special features are:

[0049] In an embodiment, the fractal honeycomb structure is obtained by 3D printing, wire cutting or other processing methods.

[0050] In an embodiment, the outer wall of the carbon fiber tube is glued to the inner wall of the honeycomb; the middle honeycomb inner core is connected to the upper and lower panels by brazing.

[0051] The preparation method of this embodiment is simple, easy to implement and batch-prepared. The carbon fiber tube reinforced external self-similar fractal composite electromagnetic shielding honeycomb structure plate prepared by the method of this embodiment has excellent mechanical properties and electromagnetic shielding performance.

[0052] To sum up, the carbon fiber tube reinforced external self-similar fractal composite electromagnetic shielding honeycomb structure plate of the present invention, the honeycomb structure plate is a h...

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Abstract

The invention provides a carbon fiber tube reinforced external self-similar fractal composite electromagnetic shielding honeycomb-like structure plate. The honeycomb-like structure plate is composed of an upper panel, a lower panel and a honeycomb inner core. The honeycomb inner core is composed of a fractal honeycomb structure and a carbon fiber tube embedded in a honeycomb center; and the electromagnetic shielding coatings are coated on the inner wall and the outer wall of the honeycomb structure. According to the carbon fiber tube reinforced external self-similar fractal composite electromagnetic shielding honeycomb structure board, the problem that on a spaceflight material shell at present, a board needs certain bearing capacity besides excellent electromagnetic performance, and the design of light weight is met is solved. According to the plate for the spacecraft, it is guaranteed that electromagnetic waves are absorbed, the excellent bearing capacity is achieved, light weight can be achieved while the problem is solved, and the physical performance of the plate is improved under the condition that the strength requirement is met.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a carbon fiber tube reinforced external self-similar fractal composite electromagnetic shielding type honeycomb structure plate. Background technique [0002] It has been more than 150 years since Maxwell predicted the existence of electromagnetic waves in 1865, and wireless communication technology has developed rapidly in modern society. At the same time, electromagnetic pollution also occurs. Under certain circumstances, electromagnetic pollution can lead to electronic failure and information leakage. Excessive electromagnetic pollution can also cause harm to human health. Therefore, in some special occasions, it is necessary to absorb electromagnetic waves as much as possible to avoid the harm caused by electromagnetic pollution. [0003] For aerospace materials, not only need excellent electromagnetic shielding performance, have a wide electromagnetic absorption frequency...

Claims

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Application Information

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IPC IPC(8): H05K9/00
CPCH05K9/0081
Inventor 雷作胜沙春晖张成川左广宇刘雨寒
Owner SHANGHAI UNIV
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