Magnetic material applicable to wireless charging receiving terminal

Abstract

The invention discloses a magnetic material applicable to a wireless charging receiving terminal. The magnetic material is formed by laminating a soft magnetic material laminated structure and an electromagnetic wave-absorbing material laminated structure; the soft magnetic material laminated structure is formed by laminating multiple layers of an iron-based alloy soft magnetic material; the electromagnetic wave-absorbing material laminated structure is formed by laminating multiple layers of an electromagnetic wave-absorbing material; a layer of thin transparent double-side pressure-sensitiveadhesive is adhered respectively between the soft magnetic material laminated structure and the electromagnetic wave-absorbing material laminated structure and between the iron-based alloy soft magnetic material and the iron-based alloy soft magnetic material. Compared with the traditional magnetic material used for the wireless charging receiving terminal, the magnetic material applicable to thewireless charging receiving terminal has the advantages such as high magnetic saturation strength, high thermal stability, high magnetic conductivity, low magnetic loss, controllable frequency response and high charging efficiency. The magnetic material is applicable to low-frequency wireless charging of consumption type electronic devices and can be extended to other wireless charging application fields except for the consumption type electronics.

Description

technical field [0001] The invention belongs to the technical field of wireless charging, and in particular relates to a magnetic material suitable for a wireless charging receiving end. Background technique [0002] Nowadays, with the rapid development of wireless charging technology, wireless charging has rapidly penetrated into people's lives. Especially in consumer electronics, medical electronics, industrial electronics and other related fields, it has a wide range of application progress, so people have higher and higher performance requirements for wireless charging, and the demand will also increase. [0003] The current mainstream solution for wireless charging is the magnetic coupling mode. The low-frequency (100-300KHz) magnetic coupling wireless charging scheme applied to wireless charging of mobile phones has the advantages of low cost and high charging efficiency. However, wireless charging solutions using traditional ferrite and nanocrystalline (or amorphous...

AI Technical Summary

Problems solved by technology

Under such conditions, traditional ferrite materials have disadvantages such as easy saturation, low thermal diffusion efficiency, and difficult performance optimization.

It can be seen from this that traditional magnetic materials cannot solve the problems of low magnetic permeability, high magnetic loss and high temperature that occur during wireless charging.

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