PCB Connector Shielding Structure for EMI in Compact Electronics
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Solution Overview
Problem
As electronic devices miniaturize, components are disposed closer together, leading to electromagnetic interference between parts, which affects performance and functionality.
Innovation Solution
Incorporating a shielding structure with a conductive shield wall and shielding member to surround and overlap printed circuit boards, along with a flexible connector design to manage electromagnetic interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If components are disposed closer together to miniaturize the electronic device, then the device size is reduced, but electromagnetic interference between components increases
Solution Approach 1:
A shield wall is introduced as an intermediary structure between the first printed circuit board and the second printed circuit board. The shield wall includes a conductive material and is configured to block electromagnetic waves, thereby preventing interference between the closely disposed components while maintaining the miniaturized device structure.
Solution Approach 2:
The internal space of the electronic device is segmented into different regions by the shield wall, which divides the space between the first and second printed circuit boards. This segmentation isolates electromagnetic fields from different components, allowing closer component placement without interference.
2Object-affected harmful factors
If a shield wall is added to block electromagnetic interference, then electromagnetic interference is reduced, but device complexity increases
Solution Approach 1:
The shield wall is merged with the supporting member structure. The supporting member includes a cavity that houses the shield wall, and the shield wall is disposed within this cavity. This integration reduces the number of separate components and simplifies the overall device structure while maintaining effective electromagnetic shielding.
Solution Approach 2:
The supporting member serves multiple functions: it provides mechanical support for the printed circuit boards, defines the device cavity, and houses the shield wall for electromagnetic interference protection. This multi-functionality reduces structural complexity by combining support and shielding functions into a single component system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively reduces electromagnetic interference, enhancing the performance and reliability of electronic devices by minimizing signal interference between components.
Implementation Method 1
a shield wall protruding from a surface of the supporting member facing the first printed circuit board and surrounding at least part of the first part, at least part of the shield wall including conductive material
Data Source
AI summary
An electronic device according to one embodiment comprises: a support member; an electronic component; a first printed circuit board; a first connector; a second printed circuit board including a first portion disposed between the support member and the first printed circuit board, a second portion on which the electronic component is disposed, and a third portion extending from the first portion to the second portion; a second connector disposed on the first portion; a shielding wall protruding from a side of the support member facing the first printed circuit board and surrounding at least a portion of the first portion; and a shielding member surrounding at least a portion of the electronic component, wherein a portion of the shielding member overlaps with the first printed circuit board.