Mobile disinfection device
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Solution Overview
Problem
Existing disinfection technologies face challenges in safely using powerful UV radiation in the presence of humans and effectively removing moisture and dust to ensure effective disinfection of contaminated surfaces.
Innovation Solution
A mobile disinfection device with a disinfection chamber having a peripheral shield impervious to radiation, adjustable sealing lips, and a vacuum unit for dust removal, combined with sensors to monitor and control UV exposure and air circulation for safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If powerful UV radiation is used for disinfection, then disinfection efficacy is improved, but safety in the presence of humans deteriorates
Solution Approach 1:
The device divides the space into a treatment chamber (where UV radiation is applied) and a safe external area (where humans can remain). The chamber is segmented with radiation-impermeable walls and a movable radiation barrier that creates a distinct boundary between the hazardous UV zone and the safe human zone, allowing powerful disinfection without exposing humans to radiation
Solution Approach 2:
A movable radiation barrier (shield) acts as an intermediary element that can dynamically block UV radiation from reaching humans while allowing the UV source to remain active. This barrier serves as a controllable mediator between the UV radiation source and the human environment, enabling disinfection efficacy while maintaining safety
2Object-generated harmful factors
If water is used for cleaning surfaces, then dust and dirt removal is improved, but moisture absorption by surfaces worsens
Solution Approach 1:
The device uses a vacuum system (pneumatic mechanism) to remove dust and dirt from surfaces without applying water. The vacuum cleaner creates negative pressure to suction particles away, achieving effective cleaning while keeping the surface dry and avoiding moisture-related problems
Solution Approach 2:
The vacuum cleaner extracts dust and dirt particles from the surface environment by suctioning them into a collection container. This extraction method removes contaminants without introducing water, thereby eliminating the trade-off between cleaning effectiveness and moisture absorption
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 safe and effective disinfection of surfaces in the presence of humans by preventing radiation leakage and removing moisture and dust, ensuring thorough disinfection and safety.
Implementation Method 1
a UV radiation source for radiation of a surface to be disinfected
Implementation Method 2
a vacuum cleaner to remove dust and dirt particles
Data Source
Figure 1~2
Figure 3A~3B
Figure 4~5
AI summary
A mobile disinfection device (200) includes a disinfection chamber (203) coupled to a propulsion system (228) configured for moving along a surface (236) to be disinfected. The disinfection chamber defines a closed distal end (205), an open proximal end (206) and a surrounding wall (207) impervious to the radiation and having opposing front and rear portions and opposing side portions, respective proximal front, rear and side edges of which are propelled by the propulsion system close to the surface to be disinfected. A radiation source (260) is mounted inside the disinfection chamber for irradiating the surface through the open proximal end. The propulsion system includes a peripheral seal (304) surrounding a proximal edge of the wall and configured to obstruct radiation that might otherwise escape from inside the disinfection chamber.