Air treatment device
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Solution Overview
Problem
Air purifiers with ultraviolet irradiation systems pose a safety risk as users can be exposed to ultraviolet rays when removing or accessing components, as these rays can penetrate through filters and affect the user's hands during maintenance.
Innovation Solution
Incorporating a light blocking member positioned between the ultraviolet irradiator and the air passage, which blocks ultraviolet rays emitted from the irradiator, ensuring user safety during maintenance by reducing exposure to UV radiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an ultraviolet irradiator is installed in the air passage to purify air, then air purification effectiveness is improved, but user safety deteriorates due to UV ray exposure risk when removing or accessing components
Solution Approach 1:
The air treatment device is divided into separate functional modules: an air purification unit containing the UV irradiator and filters, and a humidifying unit that can be independently removed. This segmentation allows the UV source to remain enclosed in the air purification unit while the humidifying unit can be accessed and removed without exposing users to UV radiation.
Solution Approach 2:
The humidifying unit is extracted as a separate removable component from the air passage, positioned downstream of the UV irradiator. This extraction allows users to remove the humidifying unit for cleaning or maintenance without needing to access the UV irradiator, thereby eliminating UV exposure risk during routine maintenance operations.
2Object-affected harmful factors
If a light blocking member is added to block ultraviolet rays, then user safety is improved, but device complexity increases
Solution Approach 1:
The light blocking member is merged with the humidifying unit structure, forming an integrated component. This combination eliminates the need for a separate blocking structure, as the humidifying unit itself serves as the barrier when removed from the air passage. The design combines the light blocking function with the existing humidifying unit rather than adding an independent component.
Solution Approach 2:
The humidifying unit serves multiple functions: it acts as both a humidifying component and a light blocking barrier. When removed from the air passage, the humidifying unit simultaneously performs maintenance access and UV radiation blocking, eliminating the need for dedicated blocking structures and reducing overall device complexity.
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 light blocking member effectively reduces the amount of ultraviolet rays reaching the user's hands during the removal of components, enhancing user safety and maintaining the effectiveness of the air purification process.
Implementation Method 1
an irradiator configured to irradiate the functional component with ultraviolet rays
Implementation Method 2
The light blocking member is arranged to block the ultraviolet rays emitted from the irradiator
Data Source
AI summary
An air treatment device includes a casing having an opening, an air passage formed in the casing, a first unit disposed in the air passage, a predetermined functional component disposed in the air passage, an irradiator configured to irradiate the functional component with ultraviolet rays, and a light blocking member arranged for air in the air passage to pass through the light blocking member. The first unit is removable from the casing through the opening. The light blocking member is arranged to block the ultraviolet rays emitted from the irradiator. The light blocking member is disposed between the first unit and the irradiator.