Shield Can Attachment Mechanism for Electronic Devices
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Solution Overview
Problem
Existing electronic devices face challenges in securely attaching shield cans to printed circuit boards (PCBs) to prevent them from falling off, which can lead to electromagnetic interference and reduced device reliability.
Innovation Solution
The electronic device incorporates a cover portion with a coupling portion that protrudes to accommodate a receiving portion on the circuit board, along with support portions made of different materials to securely fix the cover portion in place, ensuring the shield can remains attached.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If soldering is used to fix the shield can to the PCB, then the shield can is initially attached, but the soldered shield can may separate from the PCB over time
Solution Approach 1:
The fixing mechanism is divided into multiple independent elements: coupling portions on the shield can, receiving portions on the PCB, and support portions (solder) connecting them. This segmentation allows each element to perform its specific function while collectively providing robust attachment that prevents separation over time.
Solution Approach 2:
The coupling portions are designed to protrude from the shield can before assembly, and the receiving portions are pre-formed on the PCB. The support portions are positioned in advance to connect these elements, creating a pre-configured attachment system that ensures reliable fixation from the start and prevents subsequent separation.
2Reliability
If the shield can is firmly fixed to prevent detachment, then attachment reliability improves, but the structure becomes more complex
Solution Approach 1:
The coupling portions, receiving portions, and support portions are merged into a single integrated fixing structure. This combination achieves firm attachment reliability while avoiding the complexity of multiple separate components or complex assembly procedures, as the elements work together as a unified system.
Data Source
AI summary
An electronic device includes a display panel, a circuit board, on which at least one component is mounted and connected to the display panel, and a cover portion coupled to the circuit board and shield the at least one component. The cover portion includes a coupling portion that protrudes, the circuit board includes a receiving portion coupled to the coupling portion, and the coupling portion is accommodated in the receiving portion.