Exterior Panel Cover Structure for Gap-Free Recess Alignment
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Solution Overview
Problem
Existing exterior panels for mobile units may form gaps and steps between the inner and outer edges due to misalignment and uneven surfaces, compromising the aesthetic appearance and functional integrity.
Innovation Solution
The exterior panel design features a recess with positioning ribs and inclined inner edges, combined with a cover member having flexible connection walls and projections, ensuring precise alignment and seamless integration, thereby eliminating gaps and steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a cover is attached to an open portion using a simple engagement structure, then the manufacturing process is simple, but gaps and steps form between the cover and main body
Solution Approach 1:
Positioning ribs are pre-formed on the inner edge of the open portion before the cover is attached. These positioning ribs protrude into the recess and engage with grooves on the cover, establishing precise alignment positions in advance. This preliminary positioning structure ensures that when the cover is attached, it automatically aligns with the main body, preventing gaps and steps without requiring complex adjustment procedures during assembly.
Solution Approach 2:
An inclined portion is introduced as an intermediary element between the cover and the main body. The inclined portion allows the cover to be gradually guided into the correct position during attachment. As the cover is pressed against the inclined portion, it is guided into proper alignment with the positioning ribs, facilitating smooth attachment while maintaining high precision. This intermediary structure eliminates the need for complex direct engagement mechanisms.
2Manufacturing precision
If positioning structures are added to eliminate gaps and steps, then alignment precision improves, but device complexity increases
Solution Approach 1:
The positioning function is segmented into distinct elements: positioning ribs on the main body and corresponding grooves on the cover. This segmentation allows each element to be independently formed during molding, simplifying the overall structure. The positioning ribs are integrated into the main body's inner edge, and the grooves are integrated into the cover, eliminating the need for separate positioning components or complex adjustment mechanisms.
Solution Approach 2:
The positioning ribs are merged with the inner edge structure of the main body, and the grooves are merged with the cover structure. This merging eliminates the need for separate positioning components. The inclined portion is also merged into the engagement structure, combining multiple functions (guiding, positioning, and securing) into a single integrated structure, thereby reducing overall device complexity while maintaining high alignment precision.
Data Source
AI summary
An exterior panel includes a panel body including a first ornamental surface and a recess, and a cover member, including an ornamental wall that covers an open portion of the recess. The recess includes a peripheral wall and a bottom wall. The cover member includes the ornamental wall, an abutment wall that abuts the bottom wall, and a connection wall that connects with an edge of the abutment wall and an inner surface of the ornamental wall. The peripheral wall includes the inner surface on which positioning ribs are arranged. The positioning ribs extend in a first direction. The inner edge of the open portion includes an inclined portion that is inclined to widen the open portion as the first ornamental surface becomes closer in the first direction. An outer edge of the ornamental wall is in contact with the inclined portion.