Conductive Sheet Fitting Structure for Electronic Device Noise Shielding
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Solution Overview
Problem
Existing technologies do not effectively enable a conductive sheet to be brought into conduction with the ground pattern of an electronic device, failing to address the need for electrical conductivity in a predetermined region of the device's case.
Innovation Solution
A fitting structure comprising a conductive member in a first case piece and a conductive sheet with a conductive layer in a second case piece, where the conductive sheet is opposed to the first case piece and electrically connected to the ground pattern upon coupling, ensuring electrical conductivity between the conductive sheet and the ground pattern.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conductive sheet is arranged in a predetermined region of the case to counter external noise, then electromagnetic shielding effectiveness is improved, but electrical conductivity with the ground pattern cannot be established
Solution Approach 1:
A conductive member is introduced as an intermediary component between the conductive sheet and the ground pattern. The conductive member extends from the ground pattern in the first case piece to contact the conductive sheet in the second case piece, establishing electrical conductivity while maintaining the shielding structure. This intermediary solves the contradiction by providing a dedicated conduction path without requiring direct contact between the conductive sheet and ground pattern.
2Ease of operation
If the case is divided into separable first and second case pieces, then assembly and disassembly ease is improved, but ensuring reliable electrical contact between conductive sheet and ground pattern becomes difficult
Solution Approach 1:
The conductive member is designed with elastic properties, allowing it to dynamically adapt to positional variations and maintain reliable contact. The elasticity enables the conductive member to compensate for assembly tolerances and maintain stable electrical connection even when the separable case pieces are reassembled multiple times, thus preserving contact reliability while enabling easy assembly and disassembly.
Solution Approach 2:
The conductive member serves as a mediator that bridges the gap between the separable case pieces. It extends from the ground pattern in the first case piece to contact the conductive sheet in the second case piece, ensuring electrical continuity is maintained despite the separable nature of the case structure.
3Strength
If protrusions or claws are formed on the inner side surface of the case piece to fit the conductive sheet, then structural support is improved, but electrical conductivity with the ground pattern is not achieved
Solution Approach 1:
The fitting structure is segmented into multiple functional components: protrusions or claws for structural support and positioning, and a separate conductive member for establishing electrical conductivity. This segmentation allows each component to perform its specific function effectively - the protrusions provide mechanical support while the conductive member ensures electrical connection to the ground pattern.
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 configuration allows for the reliable arrangement of a conductive sheet with electrical conductivity to the ground pattern within the electronic device's case, effectively addressing extrinsic noise and electromagnetic interference issues.
Implementation Method 1
a conductive member with elasticity to ensure reliable contact
Data Source
AI summary
The fitting structure for a conductive sheet of this invention comprises: a conductive member which is arranged within a predetermined region in a front case of an electronic device that has the front case and a rear case, said cases being first and second case pieces that are separably joined to each other, and which is electrically connected to ground patterns of the electronic device; and a conductive sheet which is arranged within the rear case so as to face the predetermined region of the front case and comprises a conductive layer. In a state where the front case and the rear case are joined with each other, the conductive layer of the conductive sheet is in contact with the conductive member and is electrically connected to the ground patterns of the electronic device.