Edge-Coated Magnetic Shielding Material for Particle Fallout Control
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Solution Overview
Problem
Existing electromagnetic wave shielding materials struggle to provide high shielding ability against magnetic field waves while minimizing performance deterioration of electronic components and apparatuses.
Innovation Solution
A multilayer structure comprising a magnetic layer with magnetic particles between two metal layers, where the edge surfaces of the magnetic layer are coated with a coating material, preferably conductive and having higher thermal conductivity than the magnetic layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a magnetic layer containing magnetic particles is used to shield electromagnetic waves, then shielding ability against magnetic field waves is improved, but magnetic particles may fall off from the edge surfaces causing deterioration of electronic component performance
Solution Approach 1:
A coating layer is formed on the edge surfaces of the magnetic layer to prevent magnetic particles from falling off. The coating layer acts as a protective shell that secures the magnetic particles while maintaining the shielding function, thus preventing deterioration of electronic component performance caused by particle fallout.
Solution Approach 2:
The shielding material uses a composite structure consisting of a magnetic layer containing magnetic particles and a coating layer formed on its edge surfaces. This composite structure combines the electromagnetic shielding properties of the magnetic layer with the protective function of the coating layer, achieving both high shielding ability and prevention of particle fallout.
2Object-generated harmful factors
If the edge surfaces of the magnetic layer are coated with a coating material, then magnetic particle fallout is prevented, but the coating material should have high thermal conductivity to prevent heat accumulation
Solution Approach 1:
The coating material is selected or designed to have high thermal conductivity, changing the thermal parameter of the edge surfaces. This allows heat generated in the magnetic layer to be efficiently conducted away through the coating layer, preventing heat accumulation while the same coating prevents magnetic particle fallout.
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
The structure achieves high shielding ability against electromagnetic waves, particularly magnetic field waves, while preventing the deterioration of electronic component or apparatus performance by reducing magnetic particle fallout.
Implementation Method 1
An electromagnetic wave shielding material has attracted attention as a material for reducing the influence of an electromagnetic wave in various electronic components and various electronic apparatuses
Implementation Method 2
further improvement in the shielding ability against particularly a magnetic field wave among electromagnetic waves is desired
Implementation Method 3
a part or whole of the coating material can be a coating material having a thermal conductivity higher than a thermal conductivity of the magnetic layer
Implementation Method 4
a part or whole of the coating material can be a conductive coating material
Data Source
AI summary
There is provided an electromagnetic wave shielding material including a multilayer structure having a magnetic layer containing magnetic particles, between two metal layers, in which a part or whole of an edge surface of the magnetic layer is coated with a coating material.