Removable Shielding Cover With Latching Mechanism
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Solution Overview
Problem
Existing shielding assemblies for electronic components on circuit boards are inconvenient to repair due to the need for special tools and risk of damage during disassembly, as they must be disassembled from the board to access the components.
Innovation Solution
A shielding assembly comprising a hollow frame and a cover with latching mechanisms, including a resilient bent portion with a hook and trigger, allows for easy assembly and disassembly without damaging the shield, using engagement and release mechanisms to securely attach and detach the cover from the frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the shield is soldered to the circuit board with special tools, then the electromagnetic interference protection is achieved, but the disassembly process becomes inconvenient and may damage the shield
Solution Approach 1:
The shielding assembly is divided into two main segments: a base shield structure that remains on the circuit board and a removable cover that can be detached. This segmentation allows the EMI protection function to be maintained by the base structure while the cover provides easy access to electronic components without requiring special tools or risking damage to the shield itself.
Solution Approach 2:
The cover is extracted as a separate removable component from the traditional monolithic shield structure. This extracted cover can be easily removed and reattached, providing convenient access to electronic components while the remaining base shield continues to provide EMI protection without requiring special disassembly tools.
2Reliability
If the shield is made as a single piece soldered to the board, then the EMI shielding is effective, but the shield becomes unusable after disassembly due to damage or deformation
Solution Approach 1:
The shielding assembly is segmented into a permanent base shield that provides EMI protection and a removable cover for component access. The base shield remains securely attached to the circuit board and maintains its structural integrity and EMI shielding effectiveness, while the removable cover can be repeatedly assembled and disassembled without damaging the shield structure.
Solution Approach 2:
The cover is extracted as a separate functional element that handles the mechanical access requirement, allowing the main shield body to remain intact and reusable. The cover absorbs the wear and tear from repeated assembly and disassembly operations, preserving the shield's usability.
3Reliability
If special tools are used to disassemble the shield, then the EMI protection is maintained, but the disassembly process becomes inconvenient and time-consuming
Solution Approach 1:
By segmenting the shielding assembly into a fixed base and a removable cover, the disassembly process no longer requires special tools to separate the entire shield from the circuit board. The cover can be quickly removed by hand or with simple tools, significantly reducing disassembly time while the base shield remains in place to maintain EMI protection.
Solution Approach 2:
The cover is extracted as a separately removable component that can be quickly detached without requiring the circuit board to be accessed or special disassembly tools. This extraction of the access function to a separate component dramatically reduces the time required for maintenance operations while preserving EMI shielding effectiveness.
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
Enables convenient and damage-free access to electronic components for maintenance by providing a secure yet easily removable shielding solution against electromagnetic interference.
Implementation Method 1
a resilient bent portion (221) extending from the first end (24) of the cover (20). The hook (222) intersects with the first groove (132) of the supporting wall (13)
Data Source
AI summary
A shielding assembly includes a hollow frame and a cover mounted to the hollow frame. The hollow frame comprises a plurality of sidewalls, where one of the sidewalls defines a first groove and another one of the sidewall opposite to the one of sidewalls includes a first fixing portion. The cover includes a first end, a second end opposite to the first end, a first latch located on the first end and engaged with the first groove, and a second fixing portion located on the second end and engaged with the first fixing portion, so as to retain the cover on the frame. The first latch includes a resilient bent portion extending from the first end of the cover, and a hook protruding from the resilient bent portion and received in the groove.