Portable pneumatic atomizing device
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Solution Overview
Problem
Cooling garments with DC fans are ineffective in hot conditions due to limited sweat evaporation and increased body temperature, leading to reduced cooling efficiency and potential dehydration.
Innovation Solution
A portable pneumatic atomizing device that uses a water mist generator and small-type fan to mix air and water mist, distributing it along the body surface to enhance evaporation and cooling, with a mounting seat, ultrasonic atomizing piece, and safety features to prevent injury.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If DC fan blows air into cooling garment, then air circulation is improved, but cooling effectiveness deteriorates in hot conditions due to limited sweat evaporation
Solution Approach 1:
The patent changes the state of water from liquid to fine mist through ultrasonic atomization, fundamentally altering how water interacts with skin. This parameter change enables effective evaporation even when sweat secretion is limited, resolving the contradiction between air circulation and cooling effectiveness in hot conditions
Solution Approach 2:
The patent utilizes phase transition from liquid water to water vapor through ultrasonic atomization and evaporation. The water mist generated by ultrasonic vibration rapidly evaporates on skin surface, absorbing heat and providing cooling effect independent of sweat secretion, thus maintaining cooling effectiveness when traditional sweat-based cooling fails
2Temperature
If water is applied to body surface for evaporation, then cooling effect is improved, but water loss increases causing dehydration
Solution Approach 1:
The patent segments water into extremely fine mist particles through ultrasonic atomization. This segmentation increases the total surface area of water exposed to air, enabling rapid evaporation with minimal total water quantity. The fine mist penetrates clothing fibers and distributes evenly across skin surface, achieving effective cooling with reduced water consumption
Solution Approach 2:
The patent changes the physical parameters of water delivery from bulk liquid application to fine mist atomization. This parameter change transforms the evaporation process, allowing sufficient cooling effect with dramatically reduced water quantity, thus preventing dehydration while maintaining temperature reduction
3Temperature
If outside air temperature is close to or higher than body temperature, then natural cooling is reduced, but cooling garment effectiveness deteriorates
Solution Approach 1:
The patent relies on phase transition from liquid to vapor rather than temperature difference-driven convection. Ultrasonic atomization creates fine water mist that evaporates on skin surface, absorbing latent heat of vaporization. This mechanism works effectively even when outside air temperature exceeds body temperature, as evaporation can occur at any temperature given sufficient humidity gradient
Solution Approach 2:
The patent replaces the mechanical convection-based cooling system (DC fan blowing air) with a phase-change-based system (ultrasonic atomization and evaporation). This substitution eliminates dependence on temperature difference and air circulation speed, maintaining cooling effectiveness in high-temperature environments where traditional convection cooling fails
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 device effectively reduces body temperature by dispersing water mist and airflow along the skin surface, improving cooling efficiency and preventing dehydration in hot conditions.
Implementation Method 1
The ultrasonic atomizing piece is arranged on the top of the water tank, and atomizes the water in the water tank to release into the gap between the clothes and the human body
Implementation Method 2
The small type fan transfers the outside air into the air passage, then passing the air passage, into the gap between the clothes and the human body
Implementation Method 3
the water mist and the air mix and slide along the body surface with the flow to wet the skin surface, so as to reduce the temperature of the human body
Data Source
AI summary
The present invention provides a potable pneumatic atomizing device. It includes a mounting seat, a small type fan, a water tank, an ultrasonic atomizing piece and a fixing clip. The small type fan and the water tank are respectively installed on the upper part and the side part of the mounting seat, and an air passage is formed among the small type fan, the water tank and the mounting seat; the mounting seat is provided with a lifting support frame, the lifting support frame stretches the clothes to extend the gap between the clothes and the human body. The ultrasonic atomizing piece is arranged on the top of the water tank and atomizes water in the water tank to release into the gap between clothes and the human body. The small type fan transfers outside air into the air passage, then passing the air passage, into the gap.