Composite Material Structure With Insulating Layers Around Embedded Conductors
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Solution Overview
Problem
The interposition of an insulating resin portion between conductive reinforced resin and a conductor in existing composite material structures can lead to a local weakening of the connection, resulting in a decrease in the strength of the composite material structure.
Innovation Solution
A composite material structure is developed with a conductive resin portion containing conductive fibers embedded with a conductor, and multiple layers of insulating resin portions with insulating fibers are placed between the conductor and the conductive fibers to enhance mechanical coupling and prevent strength reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an insulating resin portion is interposed between the conductive reinforced resin and the conductor, then electrical insulation is achieved, but the connection strength is locally weakened
Solution Approach 1:
The patent applies composite materials by combining conductive fibers (carbon fibers) with insulating resin to create a conductive reinforced resin that integrates both electrical conductivity and mechanical strength functions in a single material system, resolving the contradiction between achieving electrical insulation and maintaining connection strength
Solution Approach 2:
The insulating resin portion acts as an intermediary element that is strategically positioned between the conductor and conductive fibers. This intermediary provides electrical insulation while the surrounding conductive reinforced resin maintains mechanical coupling, thus resolving the strength weakening issue through proper spatial arrangement and material selection
2Reliability
If a conductor is embedded in conductive reinforced resin, then electrical conductivity is achieved, but the boundary connection between resin and conductor becomes weak
Solution Approach 1:
The conductive reinforced resin serves as a composite material that provides both electrical conductivity through conductive fibers and mechanical strength through the resin matrix, enabling the conductor to be embedded with maintained boundary connection strength while achieving electrical conductivity
Solution Approach 2:
The patent applies local quality by creating different functional zones: the conductive reinforced resin provides electrical conductivity where needed, while the insulating resin portion provides insulation at specific locations. This localized functional differentiation allows the boundary connection to maintain strength through proper material distribution
Data Source
AI summary
A composite material structure that prevents a decrease in strength while interposing insulating resin portions between a conductive reinforced resin and a conductor, is provided. The composite material structure includes a conductive resin portion formed of an electrically conductive reinforced resin in which conductive fibers are contained in an insulating base material, a conductor which is formed of an electrically conductive material and a part of which is embedded in the conductive resin portion, and a plurality of layers of insulating resin portions which is layers of resin portions each including insulating fibers contained in an insulating base material, the plurality of layers of the insulating resin portions being embedded in the conductive resin portion so as to sandwich therebetween the at least the part of the conductor and so as to be interposed between the conductive fibers and the conductor.