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Magnetic isolation material and preparation method and application thereof

A magnetic material and magnetic isolation technology, applied in the fields of magnetic field/electric field shielding, electrical components, circuit devices, etc., can solve the problems of complex preparation process of magnetic isolation materials and poor performance of magnetic isolation materials.

Active Publication Date: 2018-08-21
苏州格优微磁磁材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a magnetic isolation material and its preparation method and application in order to overcome the problems of complex preparation process and poor performance of the magnetic isolation material in the prior art

Method used

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  • Magnetic isolation material and preparation method and application thereof
  • Magnetic isolation material and preparation method and application thereof
  • Magnetic isolation material and preparation method and application thereof

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Embodiment approach

[0049] According to a preferred embodiment of the present invention, the width of the thin magnetic material layer is 10-213 mm, preferably 30-100 mm. For example, the width of the magnetic material sheet layer is 20mm, 50mm, 60mm, 142mm, 170mm, 200mm.

[0050] According to a preferred embodiment of the present invention, the magnetic isolation material further includes a first coating 51 located between the magnetic layer and the protective film, and / or a second coating 52 located between the magnetic layer and the release film, Wherein, the first coating and / or the second coating are each independently selected from at least one of thermally conductive or heat dissipation coatings, metal shielding coatings and ink coatings.

[0051] It should be noted that the "first" and "second" mentioned in the present invention are only for distinguishing the coating and the adhesive layer at different positions, and do not form any limitation on the specific performance parameters of th...

Embodiment 1

[0125] (1) The iron-based nanocrystalline alloy material (coil, 20 μm in thickness and 60 mm in width) was subjected to hydrogenation heat treatment at 530° C. for 120 minutes in argon gas containing hydrogen at a volume concentration of 0.5 percent;

[0126] (2) each nanocrystalline alloy material obtained in step (1) is pasted together by a 3 μm double-sided adhesive to form a magnetic layer containing a 4-layer magnetic material sheet structure;

[0127] (3) Coating one side of the magnetic layer obtained in step (2) on a coating machine with a thermal conductivity or heat dissipation coefficient of 10w / m·k nanometer heat conduction or heat dissipation coating to form a 5 μm heat conduction or heat dissipation coating (the first coating);

[0128] (4) Attach the 4 μm protective film to the thermally conductive or heat-dissipating coating obtained in step (3) through a 3 μm double-sided adhesive tape;

[0129] (5) Paste a 75 μm release film on the other side of the magnetic...

Embodiment 2

[0146] (1) The iron-based nanocrystalline alloy material (coil, 20 μm in thickness and 60 mm in width) was subjected to hydrogenation heat treatment at 600° C. for 100 min in argon gas with a hydrogen concentration of 0.4% by volume;

[0147] (2) each nanocrystalline alloy material obtained in step (1) is pasted together by a 3 μm double-sided adhesive to form a magnetic layer containing 6 layers of magnetic material sheet structure;

[0148] (3) Coating one side of the magnetic layer obtained in step (2) on a coating machine with a thermal conductivity or heat dissipation coefficient of 10w / m·k nanometer heat conduction or heat dissipation coating to form a heat conduction or heat dissipation coating of 8 μm (second coating);

[0149] (4) Bond the 75 μm release film to the thermally conductive or heat-dissipating coating obtained in step (3) through a 10 μm double-sided adhesive;

[0150] (5) Paste a 4 μm protective film on the other side of the magnetic layer with a 3 μm do...

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Abstract

The invention relates to the field of magnetic isolation material, and discloses a magnetic isolation material and a preparation method and application thereof. The magnetic isolation material comprises a magnetic layer and protective films and an off-type films arranged on different sides of the magnetic layer, wherein the magnetic layer comprises at least one magnetic material sheet layer. The magnetic material sheet layer comprises a plurality of magnetic material chips and the gap between the magnetic material chips are at least partially filled with air; a first glue layer is arranged between the protective film and the magnetic layer and a second glue layer is arranged between the off-type film and the magnetic layer. The preparation method overcomes the problems of complex preparation process of the magnetic isolation material in the prior art, and the prepared magnetic isolation material is with better performance.

Description

technical field [0001] The invention relates to the field of magnetic isolation materials, in particular to a magnetic isolation material, a method for preparing a magnetic isolation material, the magnetic isolation material obtained by the preparation method, and the application of the magnetic isolation material Background technique [0002] Wireless charging is a technology that wirelessly charges the battery of the end-use device, and the power supply end and the power receiving end do not need to be physically connected. At present, there are four main ways to realize wireless power transmission: electromagnetic induction, magnetic resonance, electric field coupling, and radio waves. The mainstream wireless charging equipment on the market is mainly based on electromagnetic induction. [0003] Wireless charging converts electrical energy into magnetic field energy through the transmitter coil, and the receiver coil receives the magnetic field energy and converts it into...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K9/00H02J50/70B29C65/54
CPCB29C65/54B29C66/45H02J50/70H05K9/0084
Inventor 韩红波
Owner 苏州格优微磁磁材有限公司
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