Ventilated Hat With Airflow Gap And Fan Assembly
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Solution Overview
Problem
Existing head ventilation devices fail to provide effective cooling, especially in high humidity conditions, and often lack stability during physical activity and sun protection.
Innovation Solution
A head ventilation system featuring a shell with a corrugated band and an airflow assembly that creates airflow through a gap around the head, combined with sun protection features, using a powered fan or solar induction for ventilation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a fan is installed under the crown of a hat to circulate air around the head, then airflow is provided, but effective cooling is insufficient particularly in high humidity conditions
Solution Approach 1:
The hat is divided into functional segments: a front section with sun protection visor, a crown section with fan assembly, and a band section with corrugated spacer. This segmentation allows each part to perform its specific function optimally - the fan provides forced airflow, the corrugated band maintains air gaps for evaporation, and the visor provides sun protection, together achieving effective cooling that neither could accomplish alone
Solution Approach 2:
The ventilation hat integrates multiple functions into a single device: sun protection through the visor, forced convection cooling through the fan, and evaporative cooling through the corrugated band air gaps. This multi-functionality resolves the contradiction by providing comprehensive cooling effectiveness (addressing temperature) while keeping it as a single integrated hat device (managing complexity)
2Stability of the object's composition
If a flexible band is used around the hat line to prevent airflow and provide stability, then stability during physical activity is improved, but evaporation of water from the head is prevented
Solution Approach 1:
The corrugated band is made of flexible material that conforms to the head shape and remains stable during physical activity. The flexible nature allows the band to stay in place while the corrugated structure maintains air gaps, simultaneously achieving both stability and evaporative cooling functionality
Solution Approach 2:
The band features localized corrugations that create air gaps only where needed for evaporative cooling, while maintaining overall band stability. The local corrugated structure provides the necessary air circulation pathways without compromising the global stability of the hat during motion
3Temperature
If the hat is designed to allow true ventilation of the head, then cooling effectiveness is improved, but ability to provide sun protection is reduced
Solution Approach 1:
The hat is segmented into distinct functional zones: the visor portion provides sun protection for the face and eyes, while the crown portion with fan and air gaps provides ventilation for the scalp. This segmentation allows both sun protection and effective ventilation to coexist in different regions of the same hat
Solution Approach 2:
The hat serves multiple protective functions simultaneously: the visor blocks sunlight from the face, the fan provides forced air circulation, and the corrugated band enables evaporative cooling. This multi-functionality allows the single device to address both sun protection and ventilation needs comprehensively
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 ventilates the head while maintaining stability and providing sun protection, enhancing cooling efficiency and usability during physical activity.
Implementation Method 1
An airflow assembly disposed at an upper end of the shell and spaced apart from the user's scalp causes airflow through the gap and an upper opening to ventilate a user's head
Implementation Method 2
many helmets use a flexible band around the 'hat line' that prevents airflow around the head and/or rely on contact with the upper portion of the scalp for stability. Such designs prevent evaporation of water from the head where it is most needed
Data Source
AI summary
The present disclosure is directed to head ventilation devices and systems. A shell which may be worn as a hat includes a gap along at least a portion of a user's hatline defined by one or more spacer assemblies. An airflow assembly disposed at an upper end of the shell and spaced apart from the user's scalp causes airflow through the gap and an upper opening to ventilate a user's head. Additional protection features for sun shading, inclement weather, and/or safety may also be included.