Composite Outer Shell Stamping for Thinner Electronics
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Solution Overview
Problem
Conventional aluminum alloy outer shells for electronic products are limited by material characteristics and cannot meet the demands of thinner and smaller consumer electronics due to limitations in flexibility and rigidity.
Innovation Solution
A method involving stacking multiple aluminum alloy plates with a lighter or more rigid filling material in a recessed accommodation space, forming a composite structure, and stamping it to create an outer shell with enhanced properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If aluminum alloy plate is used for outer shell, then ease of manufacture is improved, but flexibility and rigidity are insufficient for thinner and smaller electronics
Solution Approach 1:
The patent uses a composite structure consisting of multiple aluminum alloy plates (first plate, second plate, third plate) stacked together with filling material between them. This composite structure provides both the ease of manufacture associated with aluminum alloy stamping and the enhanced flexibility and rigidity required for thinner and smaller electronic devices, resolving the contradiction between ease of manufacture and mechanical strength.
2Productivity
If aluminum alloy plate is stamped, then productivity is improved, but adaptability to thinner and smaller electronics is limited
Solution Approach 1:
By creating a composite structure of multiple plates and filling materials, the patent maintains the high productivity of stamping processes while achieving the adaptability needed for various thinner and smaller electronic device configurations. The composite structure can be tailored to specific dimensional and mechanical requirements.
Solution Approach 2:
The outer shell is divided into multiple segmented plates (first plate, second plate, third plate) that are stacked together. This segmentation allows each plate to be optimized for specific functions while maintaining overall productivity through standardized stamping processes, and enables adaptation to different device sizes and shapes.
3Device complexity
If single plate structure is used, then device complexity is reduced, but structural performance for thin and small devices is insufficient
Solution Approach 1:
The patent employs a composite structure of multiple aluminum alloy plates with filling material, which enhances structural performance for thin and small devices while keeping the overall device complexity manageable through a systematic stacking and stamping process.
Solution Approach 2:
Multiple plates and filling materials are merged into a single integrated outer shell through the stacking and stamping process. This merging approach achieves enhanced structural performance while presenting a unified component that simplifies assembly and reduces overall device complexity.
Data Source
AI summary
A method for producing an outer shell includes steps of a) stacking a second plate on a first plate, the second plate having an accommodation space that is recessed toward the first plate; b) disposing a filling material in the accommodation space; c) stacking a third plate on the second plate so as to cover the filling material and to form a composite structure; and d) stamping the composite structure such that a peripheral portion of the composite structure is bent, thereby forming an outer shell. In step b), a weight of the filling material is lower than that of the first plate, that of the second plate, and that of the third plate, or rigidity of the filling material is higher than that of the first plate, that of the second plate, and that of the third plate.