Compact UV-LED Air Purifier with Nested Filter and Ion Generator
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Solution Overview
Problem
Conventional air purifiers are large, inconvenient to move, and lack ultraviolet sterilization and negative ion functions, failing to effectively address indoor and vehicular air pollution, especially with increasing air quality issues due to outdoor contaminants.
Innovation Solution
A compact air purifier design incorporating ultraviolet LEDs with specific wavelength ranges, a filter, motor, control module, and negative ion generator, allowing for portable use in both home and vehicle environments, with features like grid columns for airflow and adjustable UV emission modes for enhanced sterilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional air purifiers use traditional filter designs, then they can filter airborne particles, but they become large in size and occupy indoor space
Solution Approach 1:
The patent implements a nested structure where the filter assembly is placed inside the housing, the ultraviolet LEDs are mounted within the filter assembly, and the negative ion generator is integrated into the same space. This nested arrangement allows multiple functional components to occupy overlapping spatial volumes, significantly reducing the overall device size while maintaining all required functions.
Solution Approach 2:
The patent transitions from traditional horizontal placement to vertical stacking of components, utilizing the vertical dimension to arrange the filter, ultraviolet LEDs, and negative ion generator in a compact columnar configuration. This dimensional reorganization reduces the horizontal footprint and makes the device suitable for portable and vehicular applications.
2Adaptability or versatility
If conventional air purifiers use only filter technology, then they can remove particles, but they lack ultraviolet sterilization and negative ion functions
Solution Approach 1:
The patent merges three distinct air treatment functions (filtration, ultraviolet sterilization, and negative ion generation) into a single integrated device. The filter, ultraviolet LEDs, and negative ion generator are combined in one unit, allowing simultaneous particle removal, pathogen sterilization, and air purification through multiple mechanisms without requiring separate devices.
Solution Approach 2:
The patent creates a universal air purifier that performs multiple functions: the filter captures particles, the ultraviolet LEDs sterilize pathogens, and the negative ion generator purifies and freshens air. This multi-functional design makes the device adaptable to various air quality needs in different environments such as homes, vehicles, and portable spaces.
3Ease of operation
If conventional air purifiers are designed for home use, then they provide adequate filtration, but they are inconvenient to move and carry
Solution Approach 1:
The patent segments the air purifier into modular components including a removable filter assembly, detachable battery pack, and separable housing sections. This segmentation allows the device to be disassembled for easy storage and reassembled for use, significantly improving portability while maintaining all functional capabilities when needed.
Solution Approach 2:
The patent incorporates dynamic elements such as a rechargeable battery for portable power, adjustable fan speeds for varying air flow requirements, and collapsible or flexible components that adapt to different storage and usage conditions. These dynamic features enable the device to transition between compact storage mode and full operational mode.
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 solution provides effective air purification and sterilization, reducing space occupation and enhancing portability, while utilizing UV and negative ions to combat a wide range of airborne pathogens and pollutants, improving indoor and vehicular air quality.
Implementation Method 1
two groups of ultraviolet light emitting diodes (LEDs), respectively having a heat sink and a ultraviolet light emitting diode (LED), wherein the ultraviolet LED is mounted on the heat sink, and a wavelength range of the ultraviolet LED is between 100 nm and 480 nm
Implementation Method 2
two groups of ultraviolet light emitting diodes (LEDs), respectively having a heat sink and a ultraviolet light emitting diode (LED), wherein the ultraviolet LED is mounted on the heat sink
Data Source
AI summary
An air purifier includes a upper cover, having at least one grid column on front terminal of the upper cover; a bottom cover, having at least one grid column on front terminal of the bottom cover; and two groups of ultraviolet light emitting diodes (LEDs), respectively having a heat sink and a ultraviolet light emitting diode (LED), wherein the ultraviolet LED is mounted on the heat sink, and a wavelength range of the ultraviolet LED is between 100 nm and 480 nm; wherein the grid column on front terminal of the upper cover is combined with the grid column on front terminal of the bottom cover to form a column hole through which an air flows out.