Air-conditioning Register Fin Mechanical Attachment
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Solution Overview
Problem
The existing air-conditioning register fin systems face challenges in attaching decorative members due to the thin edges of the fin main body and decorative member, leading to adhesive leakage or insufficient adhesion, which affects the aesthetic appeal and stability of the attachment.
Innovation Solution
The air-conditioning register fin is designed with an elongated plate-shaped fin main body and a decorative member attached to its edge, featuring engagement projections and recesses with engagement hooks that securely hold each other without the need for adhesive, allowing for easy attachment and stabilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a large amount of adhesive is applied to attach the decorative member to the fin main body, then the adhesive force is sufficient, but the adhesive leaks from the mating surface, lowering the aesthetic appeal
Solution Approach 1:
The attachment structure is segmented into discrete engagement projections and engagement hooks, replacing the continuous adhesive application with localized mechanical interlocking points. This segmentation allows secure attachment without the need for large amounts of adhesive that would leak and compromise aesthetics.
Solution Approach 2:
The chemical bonding mechanism (adhesive) is replaced with a mechanical interlocking system consisting of engagement projections and engagement hooks. This mechanical substitution eliminates adhesive leakage while maintaining sufficient attachment strength through physical interlocking.
2Shape
If a small amount of adhesive is applied to avoid leakage, then the aesthetic appeal is maintained, but the adhesive force is insufficient, causing the decorative member to easily separate
Solution Approach 1:
The attachment function is segmented into multiple discrete engagement points (projections and hooks) distributed along the edge, replacing the need for continuous adhesive coverage. This allows minimal material usage while maintaining sufficient total attachment strength through cumulative mechanical interlocking.
Solution Approach 2:
The chemical bonding system is replaced with a mechanical interlocking system that provides sufficient attachment force without requiring large amounts of bonding material, thereby preventing both leakage and insufficient adhesion.
3Reliability
If adhesive is used to attach the decorative member, then the attachment is secure, but it becomes difficult to manage the amount of adhesive applied, affecting both aesthetics and reliability
Solution Approach 1:
The adhesive application process is replaced with a mechanical interlocking system where engagement projections and engagement hooks naturally guide and limit the attachment process. This eliminates the difficulty of managing adhesive quantity while ensuring reliable attachment through deterministic mechanical engagement.
Solution Approach 2:
The engagement projections and hooks are designed to self-align and self-limit the attachment process, automatically managing the engagement depth and force without requiring external control or measurement of material application. The structure itself regulates the attachment process.
Data Source
AI summary
An air-conditioning register fin includes an elongated plate-shaped fin main body and an elongated decorative member attached to one of edges of the fin main body in a transverse direction. One of the fin main body and the decorative member includes an engagement projection. The other one of the fin main body and the decorative member includes a recess that accommodates the engagement projection and an engagement hook projecting from an inner surface of the recess. The engagement hook holds and engages the engagement projection.