Segmented Shielding Housings for PCB Space Optimization
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Solution Overview
Problem
Conventional electromagnetic shielding solutions for circuit boards require individual shielding elements for each electronic component, leading to reduced available space due to the occupied area by these elements, necessitating either an enlarged circuit board or redesign of the device, which increases weight and complexity.
Innovation Solution
An electromagnetic shielding assembly featuring a plurality of shielding housings with side openings that form a gap, allowing electronic components to pass through and increasing available space on the circuit board for circuit layout, while maintaining effective electromagnetic interference shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If individual shielding elements are used for each electronic component, then electromagnetic interference shielding is improved, but available space on the circuit board is reduced
Solution Approach 1:
The shielding structure is divided into multiple separate shielding housings, each covering a specific electronic component. Each housing is an independent segmented unit that can be individually positioned and secured to the circuit board, allowing optimized space utilization while maintaining shielding effectiveness for each component.
Solution Approach 2:
The shielding housings are designed with three-dimensional structures including side walls extending from the circuit board surface. This vertical dimension allows the shielding function to be achieved without occupying additional horizontal board space, as the side walls provide the necessary shielding barrier while minimizing footprint.
2Area of stationary object
If circuit board is enlarged to accommodate shielding elements, then available space for shielding is improved, but device weight and chassis complexity increase
Solution Approach 1:
Instead of using a single large shielding structure that would require a larger circuit board, the shielding function is segmented into multiple smaller housings that can be distributed across the existing board area. This segmentation allows effective shielding without requiring board enlargement, thereby avoiding increased device weight.
3Area of stationary object
If shielding housings are placed close together, then space utilization is improved, but electromagnetic interference between housings may increase
Solution Approach 1:
Each shielding housing is designed with specific local characteristics including side walls of optimized height and configuration. The side walls provide localized shielding quality that prevents electromagnetic interference between adjacent housings, allowing them to be placed close together for improved space utilization while maintaining isolation between components.
Data Source
AI summary
An electromagnetic shielding assembly configured to be disposed on a circuit board with at least one electronic component includes a plurality of shielding housings. The shielding housings form a gap therebetween. Each of the shielding housings has a first opening adjoining the gap. The shielding housings are configured to accommodate part of the electronic component. The electronic component is configured to pass through the first openings of the shielding housings and the gap.