Shield Ring End Processing for Uniform Layer Fixation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional shield end processing structures face issues with achieving uniform fixation of the shielding layer over the entire periphery, leading to increased time and labor, and potential damage during the fixing process, particularly with sliding movement methods.
Innovation Solution
A shield end processing structure where a shield ring with a tubular member folded back to form an inner, outer tubular portion, and a folded-back portion creating a V-shape, allows the shielding layer to be inserted between these portions, and the shield shell is inserted oppositely to press and firmly hold the layer, utilizing a tubular pushing jig for efficient insertion and fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the fixing band is press-fastened to the end portion of the shielding layer over the entire periphery, then uniform press-clamped condition is obtained, but the time and labor required for the end processing operation increase
Solution Approach 1:
The shield ring is segmented into multiple rectangular piece portions (first and second types) that are alternately arranged around its circumference. This segmentation allows the shielding layer to be fixed at multiple discrete points rather than requiring continuous press-fastening, thereby reducing processing time while maintaining uniform fixation through the alternating pattern of clamping points.
Solution Approach 2:
Instead of applying fixation force over the entire periphery (excessive action), the invention applies fixation force at specific discrete locations through the rectangular piece portions (partial action). The alternating arrangement of first and second rectangular piece portions ensures sufficient uniformity is achieved without the need for complete circumferential press-fastening, thus reducing time and labor.
2Strength
If the outwardly-bent first rectangular piece portions are bent inwardly to firmly hold the shielding layer, then the shielding layer is firmly fixed, but the end portion of the shielding layer is liable to be caught by edge portions and become loose or cut
Solution Approach 1:
The shield ring is pre-assembled with both the first rectangular piece portions (for firm holding) and the second rectangular piece portions (for protection) before the shielding layer insertion. The second rectangular piece portions are pre-positioned to cover the edge portions of the first rectangular piece portions, creating a protective structure in advance that prevents the shielding layer from being caught or damaged during the bending and insertion process.
Solution Approach 2:
The second rectangular piece portions serve as a protective cushion or buffer that covers the potentially harmful edge portions of the first rectangular piece portions. This beforehand cushioning prevents the sharp edges from catching or cutting the shielding layer during insertion, while still allowing the first rectangular piece portions to bend inward and firmly hold the shielding layer when needed.
Data Source
AI summary
An end portion of a shielding layer is inserted between an inner tubular portion and an outer tubular portion of a shield ring by the use of a tubular pushing jig, and in this condition when a shield shell is inserted into the shield ring in a direction opposite to the direction of inserting of the shielding layer, the shield ring is pressed by the shield shell, so that a gap between the inner tubular portion and the outer tubular portion decreases, and the shielding layer is firmly held between the inner and outer tubular portions, thereby achieving a fixed condition of the shielding layer. Namely, the shield ring and the shield shell are fixed to the end portion of the shielding layer.