Heatable Fan Blade Components for Handheld Disinfectant Blowers
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Solution Overview
Problem
Existing disinfection methods for large areas are inefficient and ineffective, particularly in scenarios requiring rapid containment of biological substances.
Innovation Solution
A handheld blower device with heatable fan blade components, powered by a brushless direct current (BLDC) motor, that heats the air column and solution prior to ejection, enhancing coverage and efficiency through modular or integrated design with spray nozzles for precise application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing disinfection methods are used for large areas, then disinfection coverage is limited, but time consumption increases and efficiency decreases
Solution Approach 1:
The patent applies parameter changes by heating the disinfectant solution to elevated temperatures (e.g., 40-60°C or higher) before and during spraying. This temperature parameter change enhances the vaporization rate and airborne dispersion of the disinfectant, allowing rapid coverage of large areas while maintaining effective disinfection concentration, thus resolving the contradiction between disinfection efficiency and time consumption
Solution Approach 2:
The patent utilizes phase transitions by converting the liquid disinfectant solution into aerosol droplets and vapor through heating and forced air circulation. This phase transition from liquid to aerosol/vapor state enables the disinfectant to spread rapidly through air currents over large areas, significantly improving coverage speed and efficiency while reducing the time required compared to liquid spraying methods
2Area of stationary object
If disinfection coverage needs to be expanded to large areas, then spray distance and dispersion are limited, but increasing spray power may increase energy consumption
Solution Approach 1:
The patent applies self-service by using the heat already present in the heated solution to drive its own vaporization and dispersion process. The heated solution naturally vaporizes and disperses through air currents created by the fan, reducing the need for additional high-power spraying mechanisms and minimizing extra energy consumption while expanding coverage area
Solution Approach 2:
The patent utilizes pneumatic principles by employing a fan-driven air circulation system to transport the heated disinfectant aerosol over large areas. This pneumatic delivery method achieves wide dispersion and extended spray distance using relatively low energy input compared to high-pressure liquid spraying systems, resolving the contradiction between coverage area and energy consumption
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 provides effective and rapid disinfection of large areas by heating the air and solution, ensuring thorough coverage and control over the disinfectant spray, addressing the inefficiencies of existing methods.
Implementation Method 1
When a current passes through the resistor puck, the resistor puck and the cavity are heated
Implementation Method 2
the stator is configured to produce an alternating magnetic field to transfer the current to the receiver coil and the resistor puck
Implementation Method 3
heating the solution, and/or heating an aerosolized form of the solution prior to ejection from a spray nozzle
Data Source
AI summary
Handheld devices and systems for effectively spraying an area, and improved components for these and other devices and systems. A handheld air blower device includes heated fan blade components, which may be integrated or modular with the device, and which are configured to heat substances being sprayed with the device to improve operation of the device. The handheld air blower device may be used to spray disinfectant compositions to disinfect the area.