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Electro-magnetic shielding cover

A technology of electromagnetic shielding cover and conductive layer, applied in magnetic field/electric field shielding, electrical components and other directions, can solve the problem of occupying more space and so on

Inactive Publication Date: 2008-10-15
TECHFAITH WIRELESS TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, limited by the injection molding process and strength, the thickness of the electromagnetic shield covered with the metal conductive layer usually needs to be more than 0.6mm, which will take up more space in the thickness direction, which does not meet the requirements of electronic products. thin market demand

Method used

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  • Electro-magnetic shielding cover
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Embodiment Construction

[0025] The details of specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. However, it should be noted that the following description is merely exemplary in nature and is not intended to limit the disclosure, application or use of the present invention.

[0026] In the description, certain terms are used herein for reference only and therefore are not meant to be limiting. For example, terms such as "on", "under", "above", "under", "above", "beneath", etc. refer to directions in the figures to which reference is made.

[0027] Such as Figure 1-Figure 5 As shown, the present invention provides a kind of electromagnetic shielding cover 1, and this electromagnetic shielding cover 1 comprises top and the frame that is joined under the top, thereby after this electromagnetic shielding cover 1 is bonded on PCB board 2, the PCB board 2 The electrical components are covered in the cavity 10 defined by the top...

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Abstract

The invention provides an electromagnetic shielding case which comprises a metal top made of metal materials and a plastic conducting frame which is jointed under the metal top, wherein, the plastic conducting frame comprises a plastic frame body made of plastic materials and a conducting layer covering the surface of the plastic frame body. The bottom of the plastic conducting frame is electrically jointed on a PCB. By adopting the electromagnetic shielding case of the invention, the through-thickness space can be saved and the manufacturing process can be simplified. Furthermore, material cost and manufacturing cost can be reduced.

Description

technical field [0001] The present invention relates to a shielding device, in particular to an electromagnetic shielding cover for preventing electromagnetic interference (EMI). Background technique [0002] In normal operation, electronic / electrical components in equipment often generate undesired electromagnetic energy that can interfere with the operation of adjacent electronic / electrical components due to EMI transmission through radiation. In order to eliminate or at least mitigate the adverse effects caused by EMI, EMI shielding enclosures / devices may be used to provide EMI shielding for electronic / electrical components. [0003] Existing electromagnetic shielding covers are usually made of tinned steel strips or other metal materials with good solderability, mainly including a top cover and a side extending downward from the top cover, which are fixed on the PCB (printed) by welding. circuit board). The mold opening cost of this metal electromagnetic shielding cove...

Claims

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Application Information

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IPC IPC(8): H05K9/00
Inventor 余丹
Owner TECHFAITH WIRELESS TECH BEIJING
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