A method of manufacturing an electromagnetic shielding sheet

A manufacturing method and electromagnetic shielding technology, applied in the direction of magnetic/electric field shielding, electrical components, etc., can solve the problem that the thickness of the electromagnetic shielding sheet is not suitable for small electronic equipment, and achieve the effect of miniaturization and reduction of space thickness

Active Publication Date: 2020-10-02
上海威斯科电子材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a method for manufacturing an electromagnetic shielding sheet, which is used to solve the problem that the thickness of the existing electromagnetic shielding sheet is not suitable for small electronic equipment

Method used

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  • A method of manufacturing an electromagnetic shielding sheet
  • A method of manufacturing an electromagnetic shielding sheet
  • A method of manufacturing an electromagnetic shielding sheet

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Embodiment 1

[0043] Such as figure 1 As shown, the present embodiment provides a manufacturing method of an electromagnetic shielding sheet, the manufacturing method comprising:

[0044] A magnetic tape layer 101 is provided, and a first adhesive layer 102 is formed on the upper surface of the magnetic tape layer 101 and a second adhesive layer 103 is formed on the lower surface of the magnetic tape layer 101 to form a magnetic stack structure 10;

[0045] Fragmenting the magnetic laminated structure 10 to split the magnetic tape layer 101 into several fragments 20, and there are fragmentation gaps 30 between adjacent fragments 20;

[0046] The crushed magnetic laminated structure 10 is pressed, so that at least part of the fragmented gap 30 is formed by the first adhesive layer 102 on the upper surface and the first adhesive layer 102 on the lower surface. The second glue layer 103 is partially filled.

[0047] Please combine below figure 1 , see Figure 2 to Figure 4d The method for...

Embodiment 2

[0068] Such as figure 1 As shown, the present embodiment provides a manufacturing method of an electromagnetic shielding sheet, the manufacturing method comprising:

[0069] Provide at least two layers of magnetic tape layers 101, and form a third adhesive layer 106 between adjacent magnetic tape layers 101, and form a first adhesive layer 102 on the upper surface of the above structure and on the lower surface of the above structure forming a second adhesive layer 103 to form the magnetic stack structure 10;

[0070] Fragmenting the magnetic laminated structure 10 to split the magnetic tape layer 101 into several fragments 20, and there are fragmentation gaps 30 between adjacent fragments 20;

[0071] The crushed magnetic laminated structure 10 is subjected to a pressing process, so that at least part of the fragmented gap 30 is formed by the first adhesive layer 102 or the third adhesive layer 106 and The second adhesive layer 103 or the third adhesive layer 106 located on...

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Abstract

The invention provides a manufacturing method of an electromagnetic shielding sheet. The manufacturing method comprises the steps of providing at least one magnetic strip layer, forming a first glue layer on an upper surface of the magnetic strip layer and a second glue layer on a lower surface of the magnetic strip layer to form a magnetic lamination structure; smashing the magnetic lamination structure so that the magnetic strip layer is cracked to form a plurality of smashed pieces, wherein a smashed gap is formed between adjacent smashed pieces; and performing lamination on the smashed magnetic lamination structure so that at least one part of the smashed gap is partially filled with the first glue layer arranged on the upper surface and the second glue layer arranged on the lower surface. By the manufacturing method, the problem that the thickness of an existing electromagnetic shielding sheet is not applicable to small-size electronic equipment is solved.

Description

technical field [0001] The invention relates to the field of electromagnetic shielding sheets, in particular to a method for manufacturing an electromagnetic shielding sheet. Background technique [0002] Electromagnetic shielding (electromagnetic shield) refers to the use of conductive materials or ferromagnetic materials to shield the end of the stator core of the large-capacity turbogenerator to reduce the additional loss caused by the magnetic flux leakage at the end of the stator winding in the structural parts Measures with localized fever. In terms of communication, shielding is the electromagnetic isolation between two spatial regions to control the induction and radiation of electric fields, magnetic fields and electromagnetic waves from one region to another. Specifically, it is to surround the receiving circuit, equipment or system with a shield to prevent them from being affected by the external electromagnetic field. [0003] With the rapid development of elec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K9/00
Inventor 王柯张亮金学哲
Owner 上海威斯科电子材料有限公司
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