Portable Case Raised Portions Rib Structure
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Solution Overview
Problem
Conventional portable information equipment cases, despite advancements in thin-and-light designs, often fail to adequately protect LCD panels from deformation and breakage due to external pressures, such as those encountered when carrying them in crowded spaces.
Innovation Solution
A metallic case with raised portions and integrally molded ribs on the rear face, resembling a car-hood structure, is designed to enhance mechanical strength and prevent deformation by distributing external pressure more evenly, thereby reducing the risk of damage to the LCD panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the case is made thinner to enhance portability, then the weight and thickness are reduced, but the mechanical strength and resistance to external pressure deteriorate
Solution Approach 1:
The rear case surface is segmented into multiple raised portions (protrusions) that are distributed across the surface. Each raised portion acts as an independent structural element that contributes to overall strength. This segmentation allows the case to maintain thin overall thickness while having localized areas of increased structural capability to resist external pressure.
Solution Approach 2:
The patent introduces a third dimension by creating raised portions that extend outward from the rear case surface. These protrusions add vertical dimensionality to an otherwise two-dimensional flat surface, creating a three-dimensional structured surface that provides enhanced mechanical strength without increasing the overall case thickness or weight significantly.
2Length of moving object
If the case thickness is reduced to achieve thin-and-light design, then portability is improved, but the protection against external pressure and deformation deteriorates
Solution Approach 1:
The raised portions are strategically positioned at specific locations on the rear case surface where external pressure is most likely to be applied. This local quality enhancement provides targeted protection at critical areas while maintaining overall thin case thickness. The protrusions are placed to maximize their protective effect against external pressure without requiring uniform thickening of the entire case.
3Ease of manufacture
If conventional flat case structures are used, then manufacturing is simple, but the mechanical strength against external pressure is insufficient
Solution Approach 1:
The raised portions are integrated directly into the rear case structure as a unified component rather than separate attachments. This merging of the protrusions with the main case body allows for streamlined manufacturing processes while achieving enhanced mechanical strength. The integrated design eliminates the need for additional assembly steps and maintains manufacturing simplicity.
Data Source
AI summary
The case disclosed has a raised portion stepped upward convexly and a rib molded inside of the raised portions integrally. The case is disposed at a rear surface of a display unit of a portable information equipment.