Active Composite Panel Assemblies for Aircraft Wiring Reduction

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Solution Overview

Problem

The existing methods for transferring electrical signals in aircraft interiors require extensive electrical wiring, which is time-consuming, labor-intensive, and adds weight and complexity, reducing fuel efficiency.

Innovation Solution

An active composite panel assembly with an embedded active layer that conducts electrical signals, eliminating the need for extensive wiring by integrating electrical devices directly into the panel and using a conductive substrate to transfer power and data signals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If extensive electrical wiring is used to connect electrical devices in aircraft interiors, then reliable electrical signal transfer is achieved, but weight increases and fuel efficiency decreases

Engineering Contradiction:
Improveelectrical signal transferVSAvoidaircraft weight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The patent merges the electrical wiring function with the composite panel structure itself. The conductive layer is integrated directly into the panel, eliminating separate wiring harnesses and connecting elements. This combining of functions reduces the total weight while maintaining electrical signal transfer capability between devices mounted on the panel.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If extensive electrical wiring and routing infrastructure are used, then electrical devices can be connected, but device complexity and installation time increase

Engineering Contradiction:
Improveelectrical device connectivityVSAvoidwiring infrastructure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The composite panel with integrated conductive layer serves multiple functions simultaneously: it provides structural support, acts as the electrical connection medium, and serves as the mounting surface for electrical devices. This multi-functionality eliminates the need for separate wiring infrastructure, reducing complexity while maintaining connectivity capabilities.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Use of energy by moving object

If wiring is routed to each electrical device, then power and data signals are delivered, but manufacturing time and labor intensity increase

Engineering Contradiction:
Improveelectrical signal deliveryVSAvoidmanufacturing efficiency
Core Design Contradiction:
Use of energy by moving objectVSProductivity

Solution Approach 1:

The conductive pathways are pre-integrated into the composite panel during its manufacturing process, before electrical devices are installed. This preliminary action of embedding the electrical infrastructure within the panel structure eliminates time-consuming on-site wiring operations, significantly improving manufacturing efficiency while ensuring proper electrical signal delivery to all devices.

Inventive Principle:
Principle #10Preliminary action

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

This solution reduces the amount of wiring and circuitry within aircraft structures, enhancing efficiency and reducing weight, thereby improving fuel efficiency and simplifying the installation process.

Implementation Method 1

The entire active layer is configured to receive and conduct the electrical signals

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentEP3235720B1Active composite panel assemblies and methods
Publication Date: 2020.06.17 THE BOEING CO
  • EP3235720B1 patent drawingFigure 1~2
  • EP3235720B1 patent drawingFigure 3~4
  • EP3235720B1 patent drawingFigure 5

AI summary

An active composite panel assembly (100) is configured to transfer electrical signals from a source (126) to an electrical device (116). The active composite panel assembly (100) includes a composite layer (102), and an active layer (104) secured to the composite layer (102). The active layer (104) is configured to receive and conduct the electrical signals.