Light Blocking Apparatus for UV Air Purifier Safety
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Solution Overview
Problem
Ultraviolet light used in air purification devices can scatter through opening structures, posing safety hazards due to its detrimental effects on physical health.
Innovation Solution
A light blocking apparatus with a housing and a light blocking member that covers through holes or slots, reducing the scattering of ultraviolet light by creating a gap or angle between the member and the housing, allowing air to pass while blocking UV emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If opening structures such as air inlet and air outlet are provided for air circulation, then air purification function is improved, but ultraviolet light scatters to the outside causing safety hazards
Solution Approach 1:
The opening structure is segmented into two functional parts: an air passage portion that allows air circulation and a light blocking portion that prevents ultraviolet light scattering. This segmentation enables the same structural element to fulfill both air flow and light blocking requirements simultaneously.
Solution Approach 2:
Different portions of the opening structure have different functional qualities: the air inlet/outlet areas maintain openness for air circulation, while specific regions are configured with light-blocking properties to prevent UV radiation escape. This local differentiation allows simultaneous achievement of air purification and safety functions.
2Object-affected harmful factors
If a light blocking member is added to cover through holes, then ultraviolet light scattering is reduced, but device complexity increases
Solution Approach 1:
The light blocking member is merged with the housing structure through direct connection, eliminating the need for separate mounting mechanisms. The member is integrally connected to the housing, forming a unified structure that reduces component count and assembly complexity while maintaining effective light blocking functionality.
Solution Approach 2:
The light blocking member serves multiple functions: it blocks ultraviolet light from scattering through through holes, maintains structural integrity of the housing, and can be designed to match the aesthetic appearance of the device. This multi-functionality reduces the need for additional specialized components.
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
Significantly reduces the probability of ultraviolet light scattering to the outside, minimizing potential safety hazards and health risks associated with UV exposure.
Implementation Method 1
a light blocking member, a gap or an angle being provided or formed between the light blocking member and the housing, and projection of the light blocking member toward the housing covering the through hole
Data Source
AI summary
Provided are a light blocking apparatus and an air purifier including the light blocking apparatus. The light blocking apparatus includes a housing, a light blocking member and a through hole. The through hole is located in the housing. A spacing or a gap is provided between the light blocking member and the housing. Projection of the light blocking member in spaced relationship from the housing covers the through hole.