Foldable Plant Light With UV Air Purification Cavity
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Solution Overview
Problem
Existing UV-C air sterilization systems in public spaces face challenges in effectively distributing UV-C radiation for air purification without exceeding safety limits in populated areas, due to inefficient energy use and lack of controlled air flow, especially with reduced ceiling heights and uncontrolled air velocity.
Innovation Solution
An Air Quality Control Lighting Device combining an LED light panel with a UV purification system, featuring a cover forming a cavity for UV lamps and integrated fans for stable air flow, allowing for controlled UV-C exposure and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UV-C radiation is transmitted at high intensity from ceiling or wall fixtures, then air sterilization effectiveness is improved, but UV-C radiation safety limits in populated areas are exceeded
Solution Approach 1:
The patent introduces an intermediary chamber (baffled chamber) between the UV-C light source and the populated area. This chamber acts as a mediator that allows UV-C radiation to effectively sterilize air passing through it while preventing direct exposure of people to high-intensity UV-C beams. The chamber includes features like a bottom opening for air intake and a top opening for air output, creating a controlled pathway for air flow.
Solution Approach 2:
The patent extracts the UV-C radiation function from direct ceiling mounting and relocates it into a separate baffled chamber. By taking out the UV-C source from its traditional ceiling position and placing it within a enclosed chamber, the system maintains sterilization effectiveness while eliminating direct radiation exposure to occupants below.
2Use of energy by stationary object
If ceiling height is reduced to save energy costs, then construction cost is reduced, but UV-C radiation distribution effectiveness deteriorates
Solution Approach 1:
The baffled chamber serves as an intermediary structure that enables effective UV-C radiation distribution even at reduced ceiling heights. By confining the UV-C source within the chamber and using controlled air flow through the chamber, the system maintains sterilization effectiveness without requiring high ceiling spaces for direct radiation distribution.
Solution Approach 2:
The patent replaces the mechanical approach of relying on ceiling height and direct radiation geometry with a different mechanism: a baffled chamber with controlled air flow. Instead of using physical distance and ceiling space to achieve radiation distribution, the system uses a enclosed chamber with specific opening configurations to control air flow and radiation exposure.
3Reliability
If UV-C beam intensity is increased for effective sterilization, then germ reduction is improved, but energy waste increases due to uncontrolled air flow
Solution Approach 1:
The baffled chamber acts as an intermediary that couples the UV-C light source with controlled air flow. The chamber includes a bottom opening for air intake and a top opening for air output, creating a controlled pathway that ensures air passes through the UV-C radiation field efficiently, reducing energy waste while maintaining germ reduction effectiveness.
Solution Approach 2:
The system uses the natural convection current created by the temperature difference between the UV-C illuminated air and the surrounding air as a feedback mechanism. The heated air rises through the chamber, creating a self-regulating air flow pattern that optimizes contact between air and UV-C radiation without requiring external fans or additional energy input.
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 air sterilization and purification while ensuring safe UV-C exposure levels and energy efficiency, maintaining high air quality by directing UV-C radiation through a controlled air flow, enhancing germ reduction and reducing energy waste.
Implementation Method 1
Short wave ultraviolet (UV-C) energy has long been used for air sterilization. The usefulness of UV-C irradiation on air quality lies in the effect on germs (microorganisms) transmitted in aerosolized form.
Implementation Method 2
The UV-C 'dose' needed to destroy germs is generally expressed as joules (one UV-C watt of energy for one second) per square meter
Implementation Method 3
a LED light panel, a cover installed above the light panel
Implementation Method 4
Germ reduction occurred in the air passing through the beam as a result of convection currents and ventilation systems
Data Source
AI summary
An Air Quality Control Lighting Device incorporating a purification device in combination with a lighting device having a LED light panel, a cover installed above the light panel, the interior of the cover forms a cavity that encloses an air UV purification device, and the air UV purification device consisting of a plurality of UV lamps mounted atop the LED light panel.