Aircraft Power Module Cooling Channel With Airflow Deflectors
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Solution Overview
Problem
Existing power modules in aircraft face challenges in efficiently dissipating heat due to thermal insulation and weight restrictions, particularly in high-temperature environments, and require improved cooling methods that can handle high power densities and thermal peaks.
Innovation Solution
A power assembly design with integrated cooling elements extending into a channel, utilizing deflectors to direct airflow for enhanced heat dissipation without thermal interfaces, allowing simultaneous cooling of multiple modules and reducing overall weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If separate mounting of battery and motor is used, then ease of repair is improved, but device complexity increases
Solution Approach 1:
The power assembly is divided into distinct functional modules: a battery module with mounting flange and a motor module with corresponding mounting structure. These modules can be separately mounted, disassembled, and repaired independently while maintaining overall system functionality.
Solution Approach 2:
The battery is positioned to be received within a battery recess of the motor housing, creating a nested arrangement where the battery module is partially contained within the motor module structure, reducing overall assembly footprint while maintaining modularity.
2Device complexity
If integrated mounting of battery and motor is used, then device complexity is reduced, but ease of repair deteriorates
Solution Approach 1:
The power assembly is divided into distinct functional modules: a battery module with mounting flange and a motor module with corresponding mounting structure. These modules can be separately mounted, disassembled, and repaired independently while maintaining overall system functionality.
Solution Approach 2:
The battery is positioned to be received within a battery recess of the motor housing, creating a nested arrangement where the battery module is partially contained within the motor module structure, reducing overall assembly footprint while maintaining modularity.
3Reliability
If battery is fixed to motor housing, then reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The battery and motor are pre-assembled into an integrated power assembly with defined mounting interfaces during manufacturing. This preliminary integration ensures proper alignment and secure connection, while the standardized flange structure enables quick field replacement without complex alignment procedures.
Solution Approach 2:
The power assembly is divided into distinct functional modules: a battery module with mounting flange and a motor module with corresponding mounting structure. These modules can be separately mounted, disassembled, and repaired independently while maintaining overall system functionality.
Data Source
Figure 1
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Figure 4~6
AI summary
The invention concerns a power assembly (1) comprising at least two power modules each comprising at least one component to be cooled, for example an electronic chip, mounted on a base from which cooling elements (4) extend, and a hollow body comprising a channel (13) for flow of a coolant fluid (29), each power module being mounted on said body so that the cooling elements (4) extend at least partially into said channel (13) through an opening of the body, at least one deflector (21, 22, 23, 24) being mounted in said channel (13) between the cooling elements (4) of the two modules (2) in such a way as to force the coolant fluid (29) to flow in the zone of the channel (13) comprising the cooling elements (4).