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Electromagnetic shielding method and device

An electromagnetic shielding and circuit board technology, applied in the direction of magnetic field/electric field shielding, partial shielding, printed circuit, etc., can solve the problems of complication and reduce available PCB area, and achieve the effect of easy positioning

Active Publication Date: 2014-01-22
苏州华德电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in a double wall which reduces the available PCB area and complicates the connection of the components of the two PCBs

Method used

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  • Electromagnetic shielding method and device
  • Electromagnetic shielding method and device
  • Electromagnetic shielding method and device

Examples

Experimental program
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Effect test

Embodiment Construction

[0023] Figure 1 to Figure 3 The steps of manufacturing one embodiment of a printed circuit board arrangement are shown.

[0024] Such as figure 1 As shown, a first printed circuit board 101 may be arranged on a metal base 103 forming a heat sink. The first printed circuit board 101 may comprise a semicircular cutout 105 arranged eg over a groove 107 formed in the metal base 103 . The groove 107 may be formed by a hole, wherein the semicircular cutout 105 may be formed as a half hole with a radius corresponding to the radius of the groove 107 .

[0025] refer to figure 2 , arrange the second printed circuit board 109 on the metal base 103 adjacent to the first printed circuit board 101 . The second printed circuit board 109 includes a half cutout 111 opposite the half cutout 105 of the first printed circuit board. Therefore, the half cutout 105 and the half cutout 111 form a circular groove 113 between the printed circuit board 101 and the printed circuit board 109 . Th...

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PUM

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Abstract

A method and device of electromagnetic shielding is disclosed. An example arrangement comprises a first and a second printed circuit board arranged adjacently and having an electromagnetic shield cover. An electrically conductive plug electrically provides an interconnection of the electromagnetic shielding.

Description

technical field [0001] The invention relates to the field of electromagnetic compatibility. Background technique [0002] As the remote radio unit concept develops, at least two parallel-aligned printed circuit boards (PCBs) mounted on a common heat sink are required. Typically, certain components are mounted to these two PCBs by means such as soldering. These components must be shielded from other areas of the PCB due to Electromagnetic Compatibility (EMC) emissions. This can be done using a conventional mask with walls separating the PCB areas from each other. However, due to mechanical tolerances when assembling the PCB to the common heat sink, gaps inevitably exist between the edges of the boards. Therefore, using a single shield across the gap can result in EMC leakage through the gap under the shield. Therefore, according to some solutions, two separate EMC shielding shields can be used, however this does not allow components to span between the two PCBs. Another ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K9/00H05K1/02H01R12/00
CPCH05K2201/10401H05K9/0039H05K1/142H05K9/002H05K3/0061
Inventor 弗雷德里克·奥尔森
Owner 苏州华德电器有限公司