Shield Member Drain Wire Segmentation for Grounding Yield
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Solution Overview
Problem
The existing shield sheet technology faces challenges in maintaining production yield when cutting a long drain wire-attached shield member to a desired length, as grounding the shield sheet becomes difficult, leading to reduced yield due to unnecessary removal of the shield portion.
Innovation Solution
A shield member design featuring a holding portion between the first and second ends of the shield portion, with an extension portion that allows the drain wire to be drawn outward, eliminating the need to remove the shield portion during cutting, and utilizing electroconductive non-woven fabric or stacked substrates for improved connectivity and ease of production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the long drain wire-attached shield member is cut to a desired length, then the shield member can be used for the intended application, but the drain wire becomes held in the shield layer making grounding difficult and reducing production yield
Solution Approach 1:
The drain wire is segmented into two functional portions: a holding portion embedded in the shield layer for structural integration, and a free end portion extending outward for grounding connection. This segmentation allows the shield member to maintain both structural integrity and grounding capability after cutting to desired length.
Solution Approach 2:
The drain wire is preliminarily configured with excess length during manufacturing, with the holding portion already positioned in the shield layer and the free end portion extending outward. This preliminary action ensures that after cutting to the desired shield member length, the drain wire still has sufficient length for grounding without requiring additional shield material removal.
2Ease of operation
If the drain wire-attached shield member is cut to a length longer than desired and only the shield portion is removed, then grounding is facilitated, but the production yield deteriorates by the amount the shield layer is cut
Solution Approach 1:
The drain wire is divided into a holding portion that remains embedded in the shield layer and a free end portion that extends outward for grounding. This segmentation eliminates the need to remove additional shield material to access the drain wire, as the free end portion is already positioned for connection.
Solution Approach 2:
The drain wire is preliminarily configured with the free end portion extending outward from the shield layer during manufacturing. This preliminary positioning of the grounding portion eliminates the need for subsequent shield material removal, thereby preventing production yield deterioration.
3Stability of the object's composition
If the drain wire is held firmly in the shield layer, then the shield member structure is stable, but the drain wire cannot be drawn outward for grounding connection
Solution Approach 1:
The drain wire is segmented into a holding portion for stable embedding in the shield layer and a free end portion for grounding connection. The holding portion provides structural stability while the free end portion remains accessible for grounding, resolving the contradiction between stability and accessibility.
Solution Approach 2:
The holding portion acts as an intermediary between the shield layer and the free end portion. It provides stable anchoring within the shield layer while allowing the free end portion to extend outward for grounding connection, mediating between structural stability and operational accessibility.
Data Source
AI summary
A shield member that includes a drain wire with a free end portion by cutting a long drain wire-attached shield member to a desired length. The shield member includes a shield portion and a drain wire. The shield portion can shield an electric wire. The drain wire includes a holding portion provided between a first end and a second end of the shield portion and held in the shield portion; and an extension portion that is continuous with the holding portion and extends outward from the shield portion. At least a portion of the holding portion extends between the first end and the second end of the shield portion while having excess length.