Ventilated Adjustable Headrest With Telescopic Air Duct Coupling
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Solution Overview
Problem
Existing aircraft seats with individual air conditioning systems cannot provide air conditioning to adjustable headrests due to nozzle disconnection during adjustment, and integrating cabin air ventilation systems requires significant modifications, increasing aircraft weight and maintenance.
Innovation Solution
A ventilated adjustable headrest assembly with a metal insert, nozzle, and perforated covering that maintains fluid communication with ventilation ducts, allowing for adjustable air delivery without significant reconfiguration or weight increase, using components like mesh pads and cushions for air transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a nozzle is integrated into an adjustable headrest, then air conditioning can be provided to the headrest, but the nozzle becomes disconnected during headrest adjustment
Solution Approach 1:
The headrest is designed with movable portions that can adjust position while maintaining fluid communication with the nozzle. The nozzle remains fixedly attached to the headrest structure, allowing dynamic adjustment without disconnection.
Solution Approach 2:
The nozzle is designed to serve multiple functions: delivering air conditioning to both fixed and adjustable portions of the headrest. The fluid communication system is configured to accommodate various headrest positions and adjustment mechanisms.
2Adaptability or versatility
If cabin air ventilation systems are integrated into aircraft seats, then air conditioning can be provided, but significant modifications are required including additional ducting which increases aircraft weight
Solution Approach 1:
The ventilation system is extracted from a centralized cabin-wide system and integrated directly into the aircraft seat. This eliminates the need for extensive additional ducting throughout the aircraft cabin, reducing overall aircraft weight while providing localized air conditioning.
Solution Approach 2:
The air conditioning system is segmented into individual seat-level units rather than a centralized system. Each seat receives air through its own nozzle, eliminating the need for complex ducting networks and reducing aircraft weight.
3Adaptability or versatility
If cabin air ventilation systems are integrated into aircraft seats, then air conditioning can be provided, but additional maintenance is required including filter replacement
Solution Approach 1:
The ventilation system is designed to utilize existing aircraft seat structures and maintenance protocols. The nozzle and ducting are integrated into the seat framework, allowing maintenance personnel to service the system using standard procedures already in place for seat maintenance.
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
Enables individual air conditioning for adjustable headrests without increasing aircraft weight or maintenance, allowing for seamless integration with existing systems while maintaining comfort and reducing installation complexity.
Implementation Method 1
the plurality of ventilation perforations is configured to permit the fluid transfer of forced air through the perforated covering
Data Source
AI summary
A ventilated adjustable headrest may include an adjustable metal insert, a nozzle fixedly attached to the adjustable metal insert. The nozzle may be in fluid communication with a perforated covering and one or more cushion elements. The nozzle may be telescopically coupled to one or more ventilation ducts. The one or more ventilation ducts may be configured to receive forced air from a ventilation system at an air inlet, and may be configured to deliver the forced air to the nozzle.