Composite electromagnetic shield materials and method for preparing same

A shielding material, composite electromagnetic technology, applied in the fields of magnetic field/electric field shielding, chemical instruments and methods, electrical components, etc., can solve the problems of complex preparation process, high raw material requirements, single function, etc., to achieve simple process, low cost, The effect of good shielding

Inactive Publication Date: 2010-05-12
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a composite electromagnetic shielding material and its manufacturing method in order to overcome the shortcomings of the existing composite electromagnetic shielding materials, such as single function, complex preparation process and high raw material requirements

Method used

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  • Composite electromagnetic shield materials and method for preparing same
  • Composite electromagnetic shield materials and method for preparing same

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Embodiment Construction

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] Such as figure 1 The specific embodiment shown is a composite electromagnetic shielding material, which is composed of a laminated structure. The laminated structure includes a magnetic material coating 1, a metal layer 2, a self-adhesive layer 3 and a plastic protective layer 4. The above-mentioned metal layer 2 One side is in contact with the magnetic material coating 1, the other side of the metal layer 2 is in contact with the self-adhesive layer 3, and the other side of the self-adhesive layer 3 is in contact with the plastic protective layer.

[0015] Optionally, in order to protect the magnetic material coating 1 , a plastic film protective layer 5 in contact with the other side of the magnetic material coating 1 is also included.

[0016] The material of the magnetic material coating 1 is iron-silicon (Fe-Si) soft magn...

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Abstract

The invention relates to a composite electromagnetic shield material with a laminated structure. The laminated structure comprises a magnetic material coating, a metal coating, an adhesive glue coating and a plastic protective coating, wherein one side of the metal coating is jointed with the magnetic material coating, the other side of the metal coating is jointed with one side of the adhesive glue coating, and the other side of the adhesive glue coating is jointed with the plastic protective coating. The invention has the advantages that: firstly, the theory of electromagnetic shield shows that the composition of the metal coating and the magnetic material coating can well shield high-frequency and low-frequency interference; secondly, the technology is simple, the cost is low, and the technical requirements of most electromagnetism compatibility engineering can be satisfied through adjusting the thickness of the metal coating, the thickness and magnetic permeability of soft magnetic material and other parameters; and thirdly, the shield material is easy to adhere outside or inside plastic casings of electrical appliances according to requirements of use after tearing off the plastic protective coating on the adhesive glue coating.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic shielding materials, in particular to an electromagnetic shielding material with a composite structure. Background technique [0002] Due to the rapid development of electronic technology and the wide application of various electronic products, the importance of electromagnetic compatibility has been increasingly recognized by people, and the research and development of various electromagnetic shielding materials have attracted people's attention. Due to its superior electromagnetic shielding performance and strong applicability, planar composite electromagnetic shielding materials can be applied to various complex three-dimensional environments, and have broad application prospects. Existing planar composite electromagnetic shielding materials usually use high-conductivity materials (such as copper or aluminum) to shield high-frequency interference, and high-permeability materials (such a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/04H05K9/00
Inventor 喻志远
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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