Electromagnetic shielding device and preparation method thereof

By arranging multiple shielding channels within a flexible substrate and filling them with liquid metal to form an intersecting or staggered grid-like structure, the problem of refined management and control of electromagnetic shielding for micro-devices in existing technologies is solved, achieving effective shielding against multi-directional electromagnetic interference and adapting to complex mechanical deformation.

CN121751609APending Publication Date: 2026-03-27TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
0 Cites 0 Cited by

Patent Information

Application Number
CN202411339208.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-25
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Existing electromagnetic shielding materials cannot achieve precise management and control of electromagnetic shielding for micro-devices, especially flexible micro-devices, and have poor flexibility, making it difficult to adapt to complex mechanical deformations.

Method used

An electromagnetic shielding device is constructed using a flexible substrate and liquid metal. Multiple shielding channels are arranged within the flexible substrate, and liquid metal is filled within the channels. The channels are arranged in a grid-like structure by intersecting or staggering in multiple directions and are connected by a grounding shielding wire to achieve shielding against electromagnetic interference in multiple directions.

Benefits of technology

It achieves refined electromagnetic shielding for micro-devices, especially flexible sensors, with good flexibility and adaptability. It can maintain excellent electromagnetic shielding performance during mechanical deformation, thus improving the effectiveness and controllability of electromagnetic shielding.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention relates to the technical field of electromagnetic shielding equipment, and provides an electromagnetic shielding device and a preparation method thereof, and the device comprises a flexible substrate and liquid metal; a shielding area is formed on the flexible substrate, and a plurality of shielding runners are arranged in the flexible substrate; at least two layers of flexible substrates are arranged, the multiple shielding runners are distributed in each layer of the flexible substrates, and the shielding runners in the multiple layers of flexible substrates cover the shielding area in at least two directions with included angles; the shielding flow channel is filled with the liquid metal. In this way, due to the fact that the shielding effect on electromagnetic waves in different polarization directions is brought by the directions of the shielding flow channels in different layers, and multi-layer reflection and absorption of the electromagnetic waves are brought by the structural size difference between the shielding flow channels in different layers, the more excellent and adjustable electromagnetic shielding effect is achieved; the flexible shielding flow channel is filled with the liquid metal, so that the electromagnetic shielding device has good flexibility, and fine management and regulation of electromagnetic shielding of micro devices can be realized.
Need to check novelty before this filing date? Find Prior Art