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Fragmentation Treatment Technology of Magnetic Materials for Electromagnetic Shielding

A technology of electromagnetic shielding and processing technology, applied in chemical instruments and methods, lamination auxiliary operations, lamination, etc., can solve the problems of large high-frequency loss, reduce the magnetic isolation effect of electromagnetic shielding, and large eddy current effects, and achieve high-efficiency frequency performance and stability, improve stability and production efficiency, and reduce energy loss

Inactive Publication Date: 2020-06-23
葛理想
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the eddy current effect inside the large scale particles is large, the magnetic loss of the entire magnetic sheet is uneven, the local heating is serious, and the performance consistency is poor, which may reduce its electromagnetic shielding isolation under application conditions such as wireless charging. Magnetic effect, large high-frequency loss, easily lead to low charging efficiency, and even abnormal heating of the battery and metal electronic components on the back

Method used

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Examples

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Effect test

Embodiment

[0036] This embodiment shows a process for shredding magnetic materials for electromagnetic shielding, and the specific steps are as follows:

[0037] S1) providing a magnetic sheet of soft magnetic material, and winding the magnetic sheet of soft magnetic material;

[0038] S2) heat-treating the wound magnetic sheet of soft magnetic material;

[0039] S3) Carrying out glue coating on one side of the magnetic sheet of soft magnetic material after heat treatment;

[0040] S4) Patterning the surface of the soft magnetic material sheet that is not covered with glue by using a patterned pinhole planar briquetting block;

[0041] S5) Covering the surface subjected to the patterning treatment with glue;

[0042] S6) Bond the glue-coated surface of the step S5) to the patterned surface of another piece of soft magnetic material magnetic sheet, and then perform lamination operation on the whole after stacking up to the required number of layers. A magnetic sheet of soft magnetic ma...

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Abstract

The invention relates to a fragmentation treatment technology of a magnetic material for electromagnetic shielding. The specific steps include: S1) providing a soft magnetic material magnetic sheet, and winding the soft magnetic material magnetic sheet; S2) subjecting the wound soft magnetic material magnetic sheet to heat treatment; S3) performing single-side coating on the heat treated soft magnetic material magnetic sheet; S4) using a patterned pinhole plane pressure block to perform graphical processing on the graphical side of the soft magnetic material magnetic sheet; S5) coating the surface subjected to graphical processing; S6) bonding the coated surface in step 5) to the graphical processed surface of another soft magnetic material magnetic sheet, conducting overlaying to a required number of layers, and then conducting lamination operation on the whole, wherein the another soft magnetic material magnetic sheet is obtained by the S1) to S4).

Description

technical field [0001] The invention relates to the application field of wireless energy transmission and electromagnetic shielding of magnetic materials in power electronic magnetic components. Specifically, it shows a fragmentation treatment process of magnetic materials for electromagnetic shielding. Background technique [0002] In recent years, with the popularization of smart phones, digital cameras, tablet computers and other small portable mobile devices, more and more electronic devices have begun to use wireless charging technology for power supply, which saves a lot of chargers and data lines, and also It solves the problem that the interface of the current electronic equipment does not match, and greatly facilitates people's working and living habits. [0003] Wireless charging technology is a technology that transmits electric energy from the power supply transmitter coil (above 100kHz) to the power receiver coil, and charges the battery of the device. The char...

Claims

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Application Information

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IPC IPC(8): B32B37/06B32B37/10B32B37/12B32B37/14B32B38/00B32B38/18
CPCB32B37/06B32B37/10B32B37/1284B32B37/14B32B38/145B32B38/1808B32B2307/212
Inventor 葛理想
Owner 葛理想
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