Aeronautic Electric Distribution Module With Partitioned Ventilation Channels
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Solution Overview
Problem
Existing electric distribution modules in aeronautics are complex and costly to equip due to numerous fastening elements for control cables and busbars, and they often suffer from inadequate ventilation leading to overheating and potential fires.
Innovation Solution
The module features partitions with integrated channels for routing control cables and providing independent ventilation to each housing, segregating control cables and busbars, and includes fire-resistant coatings and optimized cooling channels for effective thermal management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If numerous fastening elements are used to secure control cables and busbars, then the module achieves reliable electrical connections and cable routing, but the device complexity and manufacturing cost increase significantly
Solution Approach 1:
The partition walls are designed to integrate multiple functions: they provide structural separation, contain built-in channels for cable routing, and incorporate fastening features directly into the partition structure. This merging of functions eliminates the need for separate fastening elements and external cable management components, reducing overall device complexity while maintaining reliable electrical connections
Solution Approach 2:
The partitions serve multiple purposes simultaneously: they act as structural dividers, provide pathways for control cables through integrated channels, offer mounting surfaces for electrical components, and ensure proper spacing between busbars and cables. This multi-functionality reduces the total number of components needed in the module
2Device complexity
If a global air flow system is used for ventilation, then the module structure is simple, but the cooling effectiveness is insufficient leading to overheating and potential fires
Solution Approach 1:
The ventilation system is segmented into separate channels for each housing or compartment within the module. Each partition contains dedicated air flow channels that provide independent cooling paths, ensuring that hot air from one component does not affect adjacent components. This segmentation improves cooling effectiveness while maintaining structural simplicity
Solution Approach 2:
The air flow channels are positioned locally adjacent to each electrical component, providing targeted cooling where it is most needed. The partition design ensures that cool air is directed specifically to heat-generating components, improving thermal management efficiency without requiring a complex global ventilation system
3Volume of moving object
If control cables and busbars are placed close together, then the module compactness is improved, but electromagnetic interference disturbs control signals
Solution Approach 1:
The control cables are routed through channels that are nested within or adjacent to the partition structures, which themselves are positioned between the busbars and control components. This nested arrangement maintains compact overall module dimensions while providing electromagnetic shielding and physical separation to prevent interference
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 design simplifies equipment and connection processes, enhances cooling efficiency, and provides fire protection by segregating components and using fire-resistant materials, facilitating safer and more efficient operation of electric components.
Implementation Method 1
the main partition includes at least one channel, and wherein each lateral partition comprises at least one channel that communicates with a channel of the main partition and that is terminated by an opening leading into a housing
Implementation Method 2
independent ventilation of each housing... via these channels the routing and holding of control cables towards each housing and/or independent ventilation of each housing
Implementation Method 3
each partition includes at least one wall covered with a fire-resistant coating over most of its surface
Data Source
AI summary
An electric distribution module includes a plate bearing a main partition and lateral partitions that jointly delimit a plurality of housings, wherein the main partition has at least one channel, and wherein each lateral partition comprises at least one channel that is terminated by an opening leading into a housing that this lateral partition delimits and that communicates with a channel of the main partition, so to as to ensure, via these channels, independent ventilation of each housing and/or the routing and holding of control cables towards each housing.