EM Wave Shielding Device with Edge Absorption and Liquid Mixing
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Solution Overview
Problem
Conventional electromagnetic wave blocking devices face challenges in uniform distribution of electromagnetic absorbing agents and conductive materials due to differences in specific gravities, leading to inconsistent wave absorption and shielding performance.
Innovation Solution
An electromagnetic wave blocking device with an adjustable thickness electromagnetic absorption part and a predetermined thickness electromagnetic shielding part, coupled via protrusion-depression portions and an air layer, featuring a metal band along the edge for enhanced absorption, and manufactured using a plastic base material with mixed electromagnetic shielding and absorption powder, including ferrite, carbon, and metal components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If compositions with different specific gravities are mixed together, then electromagnetic wave absorbing agent and conductive material can be combined in one product, but uniform distribution of the materials becomes difficult due to specific gravity differences
Solution Approach 1:
The patent changes the physical state parameter of the composition from solid particles to liquid form. By using liquid rubber composition as a binder, the electromagnetic wave absorbing agent and conductive material particles are suspended in a liquid medium, which eliminates settling and non-uniform distribution caused by specific gravity differences. The liquid state allows complete mixing and uniform distribution before molding.
Solution Approach 2:
The patent creates a composite material system where liquid rubber composition serves as the matrix phase and electromagnetic wave absorbing agent/conductive material particles serve as dispersed phase. This composite structure combines the benefits of multiple materials while the liquid matrix ensures uniform distribution of particulate components throughout the final product.
2Adaptability or versatility
If electromagnetic wave absorbing agent and conductive material are mixed with rubber, then both absorbing and shielding functions can be achieved, but the functions are not uniformly performed due to poor mixing
Solution Approach 1:
The patent changes the aggregation state of the rubber from solid to liquid, transforming the mixing process from dry powder mixing to liquid suspension mixing. This parameter change enables much more uniform distribution of electromagnetic wave absorbing agent and conductive material particles throughout the rubber matrix, ensuring consistent dual功能的 performance across the entire product.
3Ease of manufacture
If conventional mixing methods are used, then manufacturing process is simple, but electromagnetic wave absorption and shielding performance is inconsistent
Solution Approach 1:
The patent maintains process simplicity by using conventional injection molding equipment but changes the physical state parameter of the composition to liquid. This allows the use of standard manufacturing processes while achieving superior mixing uniformity and consistent electromagnetic wave absorption and shielding performance throughout the product.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Simultaneously achieves effective electromagnetic wave shielding and absorption, with improved absorption rates at the edge of the shielding part, ensuring consistent performance across various frequencies.
Implementation Method 1
an electromagnetic shielding part configured to have a predetermined thickness
Implementation Method 2
an electromagnetic absorption part configured such that the thickness thereof is adjustable depending on required absorption rate or frequency, and made of an electromagnetic wave absorbing material
Data Source
AI summary
The present invention provides an electromagnetic wave blocking device having electromagnetic wave shielding and absorbing capacity. The electromagnetic wave blocking device having electromagnetic wave shielding and absorbing capacity includes: an electromagnetic wave blocking device body part configured such that an identical material is mixed with shielding and absorbing materials or different materials are arranged on both sides of a boundary of their sides to thus enable electromagnetic wave absorption and electromagnetic wave shielding; and an edge electromagnetic wave absorbing part formed along the boundary of the blocking device body part to thus additionally block electromagnetic waves. Furthermore, the present invention provides a method for manufacturing the electromagnetic wave blocking device.