Fabric Electronic Device Housings with Polymer Backing
Solution Overview
Problem
Existing electronic device housings face challenges in balancing durability and aesthetic appeal while accommodating internal electrical components, as they often struggle to provide sufficient wear and tear resistance while maintaining an appealing appearance.
Innovation Solution
The use of fabric and polymer layers for electronic device housings, where the fabric is treated with chemicals for stain and wear resistance, and molded plastic structures are integrated with a polymer backing layer, allowing for embossed and patterned features such as logos and key labels, and enhanced light transmission characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional plastic and metal layers are used for housing walls, then structural strength is achieved, but aesthetic appeal and durability against wear and stains are insufficient
Solution Approach 1:
The patent applies composite materials by combining fabric layers with polymer layers to create a hybrid housing structure. The fabric layer provides aesthetic appeal and durability against wear and stains, while the polymer layer contributes structural strength and rigidity. This composite approach resolves the contradiction by integrating materials with complementary properties rather than relying on traditional single-material construction.
2Reliability
If fabric material is used for housing, then aesthetic appeal and durability are improved, but integration with internal electrical components becomes more challenging
Solution Approach 1:
The housing is segmented into distinct fabric layers and polymer layers, each serving specific functions. The fabric layer handles aesthetic and durability requirements, while the polymer layer manages structural support and component integration. This segmentation allows independent optimization of each layer for its specific purpose, reducing overall integration complexity.
Solution Approach 2:
The polymer layer acts as an intermediary between the fabric layer and internal electrical components. It provides a stable, structurally sound substrate that facilitates component mounting and wiring while allowing the fabric layer to maintain its aesthetic and protective functions without direct contact with components.
3Reliability
If chemical treatments are applied to fabric, then stain and wear resistance are enhanced, but manufacturing process complexity increases
Solution Approach 1:
Chemical treatments for stain and wear resistance are applied to the fabric layer during the manufacturing process before final assembly. This preliminary treatment ensures the fabric achieves its desired durability properties early in production, simplifying subsequent manufacturing steps and quality control.
Data Source
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AI summary
An electronic device such as a cover for a portable device or other electronic equipment may have circuitry mounted in a housing. The housing may be formed from layers of material such as fabric and polymer layers. The fabric may be formed from woven polymer yarn. The fabric may be treated with chemicals to improve stain resistance and wear resistance, may be provided with a polymer backing layer, and may receive molded plastic structures. Patterned areas may be woven into the fabric, may be formed by placing coatings on selected portions of the fabric, or may be formed by embroidering or otherwise locally processing the fabric. The patterned areas may form labels for keyboard keys, logos, key trim patterns, and other features for an electronic device. Patterned areas may have locally enhanced light transmission characteristics and may be backlit.