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Embedded mobile phone protection shell made of negative magnetic conductivity metamaterial

A technology of mobile phone protective case and negative magnetic permeability, which is applied in the direction of telephone structure, inductor, transformer/inductor coil/winding/connection, etc. It can solve the problems of efficiency drop, magnetic field divergence, and transmission efficiency drop, and achieve improvement Efficiency, the effect of reducing energy loss

Inactive Publication Date: 2021-05-11
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wireless charging transfers energy through a magnetic field, but during the transmission process, the magnetic field inevitably diverges, resulting in a significant drop in transmission efficiency
Especially when the transmission distance becomes larger, the efficiency drops very obviously

Method used

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  • Embedded mobile phone protection shell made of negative magnetic conductivity metamaterial

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Experimental program
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Embodiment Construction

[0015] Such as figure 1 As shown, it is a structural schematic diagram of the negative magnetic permeability metamaterial embedded mobile phone protective case according to the present invention. It includes a metamaterial plate 1 with negative magnetic permeability characteristics and a mobile phone protective case body 2. The metamaterial plate 1 with negative magnetic permeability characteristics is located on the front, back, middle or side of the mobile phone protective case body 2. The size of the metamaterial plate 1 with negative magnetic permeability characteristics is consistent with or smaller than the bottom plate of the mobile phone protective case body 2 .

[0016] The metamaterial plate 1 with negative magnetic permeability characteristics is composed of one or more metamaterial units 1-1, the main body of the metamaterial unit 1-1 is a dielectric substrate made of FR-4 material, on the plane of the dielectric substrate Resonant coils made of conductive wires a...

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Abstract

The invention discloses an embedded mobile phone protection shell made of a negative magnetic conductivity metamaterial, which is used for improving the wireless charging efficiency of a mobile phone. The protection shell comprises a metamaterial plate (1) with a negative magnetic conductivity characteristic and a mobile phone protection shell body (2), and the metamaterial plate (1) with the negative magnetic conductivity characteristic is located on the front face, the back face, the middle or the side face of the mobile phone protection shell body (2). And the size of the metamaterial plate (1) with the negative magnetic conductivity characteristic is consistent with or smaller than that of a bottom plate of the mobile phone protection shell body (2). The device comprises a metamaterial plate with a negative magnetic conductivity characteristic and a mobile phone protection shell body. And the metamaterial plate is fixed on the mobile phone protection shell body and can play a role in focusing a magnetic field. The metamaterial with the negative magnetic conductivity characteristic is used, and the transmission efficiency is improved.

Description

technical field [0001] The invention belongs to the field of mobile phone accessories, and in particular relates to a mobile phone protective case containing a negative magnetic permeability supermaterial, which is suitable for improving charging efficiency in the wireless charging process of a mobile phone. Background technique [0002] Wireless charging technology can charge devices without transmission lines, so it has attracted much attention in the field of mobile phone charging technology. Wireless charging transfers energy through a magnetic field, but during the transmission process, the magnetic field inevitably diverges, resulting in a significant drop in transmission efficiency. Especially when the transmission distance becomes larger, the efficiency drops very obviously. Metamaterials with negative magnetic permeability can focus magnetic fields. Since people generally have the habit of using mobile phone protective cases, negative magnetic permeability metamat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J50/12H02J50/00H02J7/00H04M1/18H01F38/14H01F27/28
CPCH02J50/12H02J50/005H02J7/0042H04M1/18H01F38/14H01F27/2804
Inventor 阳辉张佐汀傅为农林鹤云
Owner SOUTHEAST UNIV