Embedded Conductive Gel Bus for Reliable Composite Structures

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Solution Overview

Problem

Conventional composite materials struggle to incorporate electronics or conductors within the structure due to their unreliability under extreme environmental conditions, leading to exposure and reduced sensitivity of sensors.

Innovation Solution

Incorporating a conductive gel-based bus or carrier within the composite structure during the curing process, allowing it to be embedded between layers and providing resilience against environmental conditions while maintaining electrical functionality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional conductors are used in composite structures, then electrical functionality is achieved, but reliability deteriorates under extreme environmental conditions

Engineering Contradiction:

Improveconductor reliabilityVSAvoidenvironmental conditions impact

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the physical state of the conductor from solid to gel phase. The conductive gel maintains electrical conductivity while adapting its physical properties to withstand extreme environmental conditions including temperature variations, humidity, and mechanical stress, thereby improving reliability without sacrificing electrical functionality

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite conductor system by combining conductive gel with a porous carrier structure. This composite approach allows the conductor to benefit from both the electrical conductivity of the gel and the mechanical stability of the carrier, resolving the contradiction between reliability and environmental resistance

Inventive Principle:

Principle #40Composite materials

2Measurement precision

If sensors are exposed on the structure surface, then manufacturing is simplified, but sensitivity deteriorates due to environmental exposure

Engineering Contradiction:

Improvesensor sensitivityVSAvoidenvironmental exposure

Core Design Contradiction:

Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The patent embeds the sensor within the composite structure layers, nesting it between structural plies. This protective nesting shields the sensor from environmental factors while maintaining its measurement capabilities, thereby improving sensitivity without significantly complicating the manufacturing process

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The conductive gel acts as an intermediary medium that protects the sensor from environmental exposure while maintaining electrical contact and signal transmission. This mediator allows the sensor to function accurately without direct exposure to harmful environmental conditions

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If conductors are embedded within composite layers, then protection from environmental factors is achieved, but device complexity increases

Engineering Contradiction:

Improveconductor protectionVSAvoidmanufacturing complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent incorporates the conductive gel and sensor elements during the preliminary stages of composite manufacturing, before final curing and consolidation. This preliminary action integrates the electrical components into the layup process itself, avoiding post-manufacturing complexity while achieving protective embedding

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The conductive gel serves multiple functions simultaneously: it provides electrical conductivity, acts as a protective medium for embedded sensors, and maintains structural integrity. This multi-functionality reduces the need for separate protective components, thereby decreasing overall device complexity while maintaining conductor protection

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 embedded conductive gel ensures the integrity and sensitivity of sensors by protecting them from environmental factors, enhancing their performance and reducing the impact on the structure's strength and resilience.

Implementation Method 1

a bus, secured between adjacent layers of the plurality of layers of the matrix material, comprising a conductive gel configured to propagate an electrical signal through the structure

Methodology Applied

Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS12580095B2Structures with integrated conductors

Publication Date: 2026.03.17 LIQUID WIRE INC

AI summary

Systems, structures, and methods include a structure formed from a plurality of layers of matrix material. A bus is secured between adjacent layers of the plurality of layers of the matrix material. The bus includes a conductive gel configured to propagate an electrical signal through the structure.