Aluminum Enclosure Design for Portable Computing Weight and Rigidity
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Solution Overview
Problem
The design of portable computing systems faces challenges in creating enclosures that are both aesthetically pleasing, lightweight, and durable, while also providing structural rigidity and electromagnetic interference shielding, as lighter enclosures tend to be more flexible and prone to damage, and stronger enclosures increase weight and reduce portability.
Innovation Solution
A portable computing system design featuring a multipart housing made from durable yet lightweight materials like aluminum, with a tapered shape and conductive components that provide both structural support and electromagnetic shielding, incorporating a keyboard assembly with low-travel key mechanisms and a touch-sensitive interface with force sensors for enhanced user interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If lighter enclosure materials are used, then portability is improved, but structural rigidity deteriorates
Solution Approach 1:
The patent employs aluminum alloy materials that combine lightweight properties with high strength characteristics. The aluminum enclosure provides both the reduced weight needed for portability and the structural rigidity required to protect internal components, resolving the contradiction between weight and strength through material composition optimization.
2Strength
If stronger enclosure materials are used, then structural rigidity is improved, but weight increases
Solution Approach 1:
The patent optimizes the thickness and structural geometry of the aluminum enclosure components. By carefully controlling the parameters of material distribution and structural design, the enclosure achieves maximum strength-to-weight ratio, providing necessary rigidity while minimizing weight through precise parameter optimization rather than simply using thicker or heavier materials.
3Object-affected harmful factors
If metal enclosure is used, then electromagnetic shielding is improved, but weight increases
Solution Approach 1:
The patent applies electromagnetic shielding selectively to specific regions where internal components require protection, rather than uniformly shielding the entire enclosure. This localized approach to EMI shielding reduces the overall amount of conductive material needed, thereby reducing weight while maintaining adequate shielding effectiveness for critical components.
4Length of moving object
If thinner enclosure is used, then portability is improved, but durability deteriorates
Solution Approach 1:
The patent uses aluminum alloy materials with optimized mechanical properties that provide high strength-to-thickness ratios. These composite aluminum structures enable the enclosure to be thinner for improved portability while maintaining durability through the inherent strength and damage resistance of the aluminum alloy composition.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution achieves a balance between aesthetics, durability, and portability by using lightweight yet strong materials and innovative keyboard and touchpad designs, improving user interaction and reducing stress on the user's wrists while maintaining effective shielding against electromagnetic interference.
Implementation Method 1
a multipart housing made from durable yet lightweight materials like aluminum, with a tapered shape and conductive components that provide both structural support and electromagnetic shielding
Data Source
AI summary
A portable electronic device having several features is disclosed. The device can include a retention member that retains flexible circuits extending from a top portion to a bottom portion of the device, thereby allowing some components to be moved from a top portion of the device to a bottom portion. The device may include a cover plate can be secured with a display in the top portion to cover the retention member and other internal components. The device can include an omni-directional port designed to receive a connector different orientations and provide power to the device. The device can include a flexible keyboard having butterfly keycaps. The device can include an array of openings for an audio driver, with some of the array including through holes and blind holes. The device can also include a touch pad having a force feedback sensor and a haptic device.