Modular Power Distribution for Aircraft Rack Optimization

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Solution Overview

Problem

Conventional power distribution nodes in aircraft systems are not optimized for minimal size and configuration, leading to larger-than-necessary rack assemblies with unused or underutilized components, which increases weight, size, and maintenance complexity.

Innovation Solution

A modular power distribution apparatus comprising end modules and switching modules with attachment interfaces, communication interfaces, and power supply capabilities, allowing for flexible and scalable configuration to securely connect and operate power distribution functions, optimizing component usage and reducing unnecessary components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional rack assemblies are used for power distribution nodes, then power conversion and switching functions can be provided, but the rack assemblies become larger than necessary with unused or underutilized components

Engineering Contradiction:

Improvepower distribution functionalityVSAvoidrack assembly size

Core Design Contradiction:

Adaptability or versatilityVSVolume of stationary object

Solution Approach 1:

The power distribution system is divided into modular rack assemblies that can be segmented and configured based on specific power distribution needs. Each rack assembly contains only the necessary components for its designated function, eliminating the need for oversized universal racks with unused components.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The modular rack assemblies are designed with standardized interfaces and configurations that allow them to serve multiple power distribution functions across different aircraft systems. The same rack design can be adapted for various power conversion and switching applications through configurable component arrangements.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Power

If conventional power distribution nodes are used, then power delivery functions are provided, but weight increases due to larger rack assemblies

Engineering Contradiction:

Improvepower delivery capabilityVSAvoidrack assembly weight

Core Design Contradiction:

PowerVSWeight of stationary object

Solution Approach 1:

By segmenting the power distribution system into smaller modular racks, each rack contains only the components necessary for its specific power delivery function. This eliminates excess weight from unused components while maintaining full power delivery capability through strategic placement of multiple specialized racks.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system allows for parameter changes in rack configuration and component selection based on specific power distribution requirements. This enables optimization of each rack's weight-to-power-ratio by selecting only the necessary components and configurations for each application.

Inventive Principle:

Principle #35Parameter changes

3Power

If conventional power distribution nodes are used, then power conversion functions are provided, but maintenance complexity increases

Engineering Contradiction:

Improvepower conversion capabilityVSAvoidmaintenance complexity

Core Design Contradiction:

PowerVSEase of repair

Solution Approach 1:

Segmenting the power distribution system into modular racks with standardized interfaces allows maintenance personnel to service individual racks independently. This modularity simplifies troubleshooting and repair by isolating issues to specific racks rather than requiring system-wide diagnostics.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The modular rack design enables entire racks to be quickly removed and replaced if needed, allowing for rapid recovery of power distribution functionality. Defective racks can be discarded or sent for refurbishment while the aircraft continues operation with remaining racks.

Inventive Principle:

Principle #34Discarding and recovering

4Power

If conventional rack assemblies are used, then power distribution functions are provided, but the number of components increases leading to higher costs

Engineering Contradiction:

Improvepower distribution functionalityVSAvoidnumber of components

Core Design Contradiction:

PowerVSQuantity of substance

Solution Approach 1:

By segmenting the system into modular racks, the total number of components is optimized rather than using oversized racks with excessive components. Each rack contains the minimum necessary components for its function, reducing overall component quantity while maintaining full power distribution capability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Standardized modular rack designs can be reused across multiple power distribution applications, reducing the total number of unique components needed. The same rack configuration can serve different functions through configurable component arrangements, eliminating the need for specialized racks for each application.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS10721834B2Method and apparatus for modular power distribution

Publication Date: 2020.07.21 GE AVIATION SYST LTD

AI summary

A method and apparatus for modular power distribution includes an end module and at least one switching module having a switching module electrical power interface configured to electrically connect to at least one of the end module electrical power interface or another switching module electrical power interface, and having at least one of a switching element, an input/output connector, a switching module communication interface, or a bus bar connector, wherein the modules are physically secured.