Fabric-Mounted Electronics With Conductive Strand Interconnects
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Solution Overview
Problem
Incorporating electrical components into fabric items is challenging due to the flexibility of fabric, which can cause signal paths to be damaged or components to become dislodged when the fabric is bent or stretched.
Innovation Solution
Interlacing equipment with individually adjustable components allows for the insertion and embedding of electrical components into fabric during its creation, using conductive strands and interconnect structures to securely attach them without disrupting the interlacing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electrical components are incorporated into fabric items, then enhanced functionality is provided, but the flexibility of fabric causes signal paths to be damaged or components to become dislodged
Solution Approach 1:
The fabric structure is segmented into interlaced strands that create defined pathways and mounting locations for electrical components. The interlacing pattern divides the fabric into repeatable units, each capable of securely holding components while maintaining overall fabric flexibility.
Solution Approach 2:
Conductive strands serve as intermediaries between electrical components and the fabric structure. These strands are integrated into the interlacing pattern, providing both electrical connectivity and mechanical anchoring, preventing components from becoming dislodged while maintaining signal integrity.
2Adaptability or versatility
If electrical components are mounted to fabric, then enhanced functionality is achieved, but signal paths may be damaged when fabric is bent or stretched
Solution Approach 1:
Conductive strands are pre-integrated into the fabric structure during the interlacing process, establishing protected signal paths before components are mounted. This preliminary integration ensures that signal paths are already secured within the fabric matrix, reducing vulnerability to damage during subsequent bending or stretching.
Solution Approach 2:
The fabric itself acts as a flexible protective shell that encloses and protects the conductive strands and electrical components. The interlaced structure provides a flexible yet protective environment that allows movement while preventing signal path damage.
3Reliability
If interlacing equipment is provided with individually adjustable components for inserting electrical components, then reliable integration is achieved, but device complexity increases
Solution Approach 1:
The interlacing equipment incorporates individually adjustable components that can dynamically adapt their position and function. This adjustability allows the same equipment to handle different component sizes and types while maintaining reliable integration, reducing the need for multiple specialized devices.
Solution Approach 2:
The interlacing equipment is designed with multi-functional capabilities, where individually adjustable components can perform multiple functions including holding fabric strands, positioning electrical components, and securing conductive connections. This universality reduces overall system complexity despite the added adjustability features.
Data Source
AI summary
Fabric may include one or more conductive strands. An insertion tool may insert an electrical component into the fabric during formation of the fabric. The electrical component may include an electrical device mounted to a substrate and encapsulated by a protective structure. An interconnect structure such as a metal via or printed circuit layers may pass through an opening in the protective structure and may be used to couple a conductive strand to a contact pad on the substrate. The protective structure may be transparent or may include an opening so that light can be detected by or emitted from an optical device on the substrate. The protective structure may be formed using a molding tool that provides the protective structure with grooves or may be molded around a hollow conductive structure to create grooves. An electrical component mounted to the fabric may be embedded within printed circuit layers.