EMI Shielding Frames with Detachable Pickup Members
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Solution Overview
Problem
Existing EMI shielding technologies face challenges in efficiently managing electromagnetic interference (EMI) and radio frequency interference (RFI) within electronic devices, leading to signal degradation or loss due to inadequate shielding, particularly in board-level applications.
Innovation Solution
The development of frames for EMI shielding assemblies with detachable or severable pickup members, featuring double V-cut connections that allow easy removal and installation, enabling effective EMI/RFI management by localizing interference and reducing material thickness for enhanced ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If traditional EMI shielding frames are used, then shielding effectiveness is maintained, but material usage increases and ease of installation decreases
Solution Approach 1:
The frame is divided into multiple modular sections with standardized connection interfaces. Each section can be independently manufactured and assembled, reducing overall material usage while simplifying installation through modular construction. The segmentation allows for optimized material distribution where shielding is most needed.
Solution Approach 2:
The frame design incorporates universal connection elements and standardized interfaces that can be used across different frame configurations. This multi-functionality reduces the need for custom-fitted components, decreasing material waste while enabling easy assembly and disassembly through standardized procedures.
2Loss of substance
If traditional EMI shielding frames are used, then structural integrity is maintained, but ease of installation improves, however material usage increases
Solution Approach 1:
The frame structure implements local quality by concentrating material thickness and reinforcement at critical stress points and connection areas, while using thinner materials in non-critical sections. This approach maintains structural integrity where needed while reducing overall material usage in areas where full strength is not required.
Solution Approach 2:
The frame utilizes composite material construction combining different material properties in strategic locations. High-strength materials are used at connection points and load-bearing sections, while lighter materials are used in shielding areas, optimizing the strength-to-weight ratio and reducing total material consumption.
3Ease of manufacture
If detachable pickup members with double V-cut connections are used, then ease of installation improves and material usage reduces, but manufacturing precision requirements increase
Solution Approach 1:
The detachable pickup members incorporate pre-formed V-cut connections that are manufactured as integral parts of the frame sections. These preliminary prepared connection features eliminate the need for field cutting or complex assembly operations, improving ease of manufacture while the standardized designs keep precision requirements within normal manufacturing tolerances.
4Object-affected harmful factors
If EMI shielding is implemented, then EMI/RFI interference is reduced, but device complexity increases
Solution Approach 1:
The EMI shielding function is merged with the structural frame itself rather than being a separate component. The frame sections serve dual purposes as both structural support and EMI shielding barriers, eliminating the need for additional shielding layers or complex shielding mechanisms, thereby reducing device complexity while maintaining EMI/RFI protection.
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
This solution effectively shields electronic components from EMI/RFI, allowing for balanced handling and easy installation while maintaining structural integrity and reducing material usage, thereby improving the operational efficiency of electronic devices.
Implementation Method 1
These shields are typically employed to localize EMI/RFI within its source, and to insulate other devices proximal to the EMI/RFI source. For example, board level shields are widely used to protect sensitive electronic devices against inter and intra system electromagnetic interferences
Implementation Method 2
These shields are typically employed to localize EMI/RFI within its source, and to insulate other devices proximal to the EMI/RFI source. The term shielding (as used herein) broadly includes and refers to mitigating (or limiting) EMI and/or RFI, such as by absorbing, reflecting, blocking, and/or redirecting the energy
Data Source
AI summary
According to various aspects, exemplary embodiments are disclosed of frames for shielding assemblies including detachable or severable pickup members. Also disclosed are exemplary embodiments of shielding assemblies (e.g., board level shields, etc.) including the same.