Multipart Computer Housing with Load-Path Inner Layer
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Solution Overview
Problem
Portable computing devices face design challenges in creating enclosures that are lightweight, durable, and aesthetically pleasing while avoiding the drawbacks of flexible plastic structures that can buckle and the weight of rigid structures, and conventional assembly methods are time-consuming and cumbersome.
Innovation Solution
A multi-part housing system with a structural support layer made of durable materials like aluminum and a load-distributing inner layer attached to a lightweight outer layer, allowing load transfer without affecting the outer layer, and a movable top cover with a hinge arrangement that creates a seamless appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If thinner plastic structures are used to make the enclosure lighter, then the weight is reduced, but the enclosure becomes more flexible and prone to buckling
Solution Approach 1:
The patent employs composite materials combining plastic and metal elements. The plastic outer casing provides lightweight, aesthetically pleasing surfaces, while embedded metal reinforcement structures (such as metal beams, corners, or internal frames) provide the necessary rigidity and strength. This composite approach allows the enclosure to remain lightweight while preventing buckling and bowing of thin plastic sections.
2Strength
If thicker plastic structures and more fasteners are used to make the enclosure stronger, then the strength is improved, but the enclosure becomes thicker and heavier
Solution Approach 1:
The enclosure is segmented into distinct functional zones: thin plastic sections for weight reduction and aesthetics, and strategically placed metal reinforcement sections for strength. Fasteners are also segmented rather than distributed uniformly, being placed only where structurally necessary to join the metal and plastic components. This segmentation allows strength to be concentrated where needed without adding weight throughout the entire enclosure.
3Strength
If multiple fasteners are used to join enclosure parts, then the structural integrity is improved, but the aesthetic appearance deteriorates due to visible cracks, seams, and gaps
Solution Approach 1:
The patent extracts or removes visible fasteners from the exterior surfaces of the enclosure. Instead of using traditional screw heads or rivets that are visible on the outer casing, the design employs hidden fastening mechanisms where fasteners are concealed within recesses, covered by cosmetic panels, or integrated into the metal reinforcement structures in a way that is not visible from the outside. This maintains structural integrity while preserving aesthetic appearance.
4Strength
If conventional multi-part assembly methods are used, then the structural support is improved, but the assembly process becomes time-consuming and cumbersome
Solution Approach 1:
The patent merges multiple components and assembly steps into fewer operations. The metal reinforcement structures are designed to serve multiple functions simultaneously: providing structural strength, acting as mounting surfaces for internal components, and serving as integrated fastening elements that join the plastic casing sections. This consolidation reduces the number of separate assembly operations needed while maintaining structural support.
Data Source
AI summary
A multipart computer housing is described. The multipart computer housing includes at least a structural support layer and a body. The body includes at least an outer layer formed of lightweight flexible material and an inner layer attached to the outer layer. The inner layer is connected to the support layer forming a load path between the inner layer and the structural support layer. A load applied to the multipart computer housing is transferred by way of the load path to the support layer without substantially affecting the outer layer.