A heat-conducting wave-absorbing patch

Abstract

The invention discloses a heat-conducting wave-absorbing patch, which comprises an aluminum honeycomb frame and a wave-absorbing medium; the aluminum honeycomb frame has a plurality of periodically arranged cavity structures, and the wave-absorbing medium is filled in the cavity structure of the aluminum honeycomb frame Middle; the aluminum honeycomb skeleton is used to build a heat conduction network for heat flow propagation in the heat-conducting wave-absorbing patch, and the wave-absorbing medium filled inside the aluminum honeycomb skeleton is used to absorb electromagnetic waves, and the propagation constant of the wave-absorbing medium passes through the cavity structure In addition, the aluminum honeycomb skeleton has high electrical conductivity, and will absorb electromagnetic waves due to conduction loss under the action of electromagnetic waves; the present invention embeds an aluminum honeycomb skeleton that can form a heat conduction network in a wave-absorbing medium, and through phonon-electron collaborative transmission The heat greatly improves the thermal conductivity of the composite material; the control of the propagation constant and reflectivity of the absorbing medium by the aluminum honeycomb core wall and the conductance loss mechanism further improve the absorbing performance of the absorbing medium, and enhance the thermal conductivity of the absorbing patch mechanical properties.

Description

technical field [0001] The invention belongs to the technical field of electronic materials, and more specifically relates to a heat-conducting wave-absorbing patch. Background technique [0002] The wave-absorbing patch is a flexible sheet material with a polymer binder as the matrix and a soft magnetic alloy magnetic powder as the absorber, which has good absorption and shielding functions for electromagnetic noise. Absorbing patches are usually attached to the surface of electromagnetic noise radiation sources (such as chips, flexible circuit boards, etc.) or components that are susceptible to interference (communication modules, etc.), which can effectively solve electromagnetic interference and electromagnetic radiation problems, and are widely used It is used in electronic products and communication equipment such as smart phones, notebook computers, and GPS navigators. [0003] With the advancement of electronic technology, the new generation of electronic components...

AI Technical Summary

Problems solved by technology

This processing scheme usually requires a higher filling amount to make the thermal conductivity of the material meet the industrial requirements. However, an excessively high filling amount will significantly reduce the mechanical properties of the composite material, and greatly deteriorate the processability of the material such as resilience and hardness. Seriously affect the processability

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