Portable Fan Air Distribution for Body Cooling
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Solution Overview
Problem
Existing cooling systems for individuals in high ambient temperatures, such as construction workers, military personnel, and firefighters, are often cumbersome, require rest breaks, and compromise protective gear, as they either shut down with body movement or rely on single air flow methods.
Innovation Solution
A portable, rechargeable battery-operated fan system that generates both intake and exhaust air flow streams to evaporate body moisture, providing cooling without the need for additional garments or vests, and remains functional during normal bodily movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional cooling systems are worn under protective gear, then cooling effect is provided, but the system shuts down or collapses when the body moves
Solution Approach 1:
The patent employs flexible air distribution tubes and collapsible channels that can bend and flex with body movements without collapsing or shutting down. The flexible material allows the air distribution system to adapt to changing body positions while maintaining airflow continuity, resolving the contradiction between system reliability and ease of operation.
Solution Approach 2:
The air distribution system is designed with dynamic flexibility, allowing it to move and adapt with the wearer's body. The flexible components can dynamically adjust to body movements, preventing shutdown while maintaining cooling function, thus improving both reliability and ease of operation simultaneously.
2Object-affected harmful factors
If heavy protective equipment is worn, then protection is provided, but fluid loss increases due to restricted evaporation
Solution Approach 1:
The patent introduces an intermediary air distribution system between the protective gear and the body. This intermediary system delivers cooled air directly to the skin surface, facilitating evaporation of perspiration despite the presence of protective equipment, thereby reducing fluid loss while maintaining protection.
Solution Approach 2:
The cooling system segments the protective gear into functional zones with air distribution channels that deliver cooled air to specific body areas. This segmentation allows perspiration to evaporate at the skin level through distributed air flow, reducing fluid loss while maintaining the integrity of the protective equipment.
3Device complexity
If single air flow method is used, then system simplicity is maintained, but cooling effectiveness is insufficient
Solution Approach 1:
The patent combines multiple air flow methods within a single integrated system. The air distribution system merges intake air flow from the environment with exhaust air flow from the fan, creating a dual-directional cooling effect that enhances temperature reduction while maintaining relatively simple device structure.
Solution Approach 2:
The air distribution system performs multiple cooling functions simultaneously: it draws in ambient air for evaporation cooling, exhausts heated air for convective cooling, and distributes cooled air through flexible channels. This multi-functionality increases cooling effectiveness without proportionally increasing device complexity.
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
The system effectively cools the body by evaporating moisture through dual air flow streams, maintaining airflow and flexibility, even when worn under protective gear, without shutting down due to body movement, offering a lightweight and efficient cooling solution.
Implementation Method 1
cooling effect by evaporating body moisture as it passes over the body
Data Source
AI summary
A self-contained portable air distribution system for cooling an individual by the movement of intake and exhaust air flow streams over an individual. The system includes a portable rechargeable battery operated fan that produces both an inlet intake and outlet exhaust air flow streams that provides a cooling effect by evaporating body moisture as it passes over the body.