Air washer that facilitates the replacement of the filter assembly
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Solution Overview
Problem
Traditional air purifiers struggle to effectively handle the spread of aerosol bacteria and require complex filter component replacement processes.
Innovation Solution
An air washer with easy filter component replacement, featuring a cover box and bottom box design, ultraviolet sterilization, centrifugal fan driven by a brushless DC frequency conversion motor, and filter plates for primary and secondary air cleaning, including a filter mesh and activated carbon filters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional air purifiers are used to handle aerosol bacteria, then basic air purification is achieved, but the effectiveness against aerosol bacteria is insufficient
Solution Approach 1:
The filter assembly is divided into multiple independent filter components (first filter plate, second filter plate, third filter plate) that can be separately replaced. Each filter plate serves a specific function (pre-filter, HEPA filter, activated carbon filter), allowing users to replace only the contaminated filter without replacing the entire filter assembly, thus improving effectiveness while simplifying maintenance
Solution Approach 2:
The filter plates are nested within the filter assembly structure, with each filter plate positioned in a specific slot. The filter assembly itself is nested within the bottom box, and the entire bottom box is nested within the housing. This nested structure allows for easy removal and replacement of individual filter plates while maintaining the overall integrity of the device
2Ease of operation
If complex filter components are used to improve air cleaning, then air purification effectiveness is enhanced, but filter replacement becomes difficult
Solution Approach 1:
The filter assembly is segmented into multiple independent filter plates that can be easily removed and replaced individually. The filter assembly is designed as a separate module that can be quickly detached from the bottom box, making maintenance simple while maintaining high air cleaning effectiveness through the use of multiple specialized filters
Solution Approach 2:
The filter assembly is extracted as a separate, removable module from the main device structure. Users can easily access and replace the filter assembly without disassembling other parts of the air washer, making maintenance simple while preserving the advanced multi-stage filtration system
3Object-affected harmful factors
If multiple filter plates are used to improve air cleanliness, then aerosol bacteria transmission is reduced, but device complexity increases
Solution Approach 1:
The filtration system is segmented into three distinct filter plates, each targeting different types of contaminants. The pre-filter captures large particles, the HEPA filter captures aerosol bacteria and fine particles, and the activated carbon filter captures odors and chemical contaminants. This segmentation effectively reduces aerosol bacteria transmission while keeping each filter component simple and replaceable
Solution Approach 2:
The filter assembly serves multiple functions through its multi-plate structure: particle filtration, aerosol bacteria removal, odor elimination, and vapor absorption. By integrating these multiple functions into a single replaceable module, the device achieves comprehensive air purification without significantly increasing 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
Enhances air cleanliness by reducing aerosol bacteria transmission and ensuring respiratory health, with rapid filter replacement and improved air flow efficiency.
Implementation Method 1
An ultraviolet sterilization lamp is fixed on one side of the upper end inside of the bottom box
Implementation Method 2
a centrifugal fan is fixedly provided at a middle of an inner bottom surface of the bottom box
Implementation Method 3
the second filter plate is an activated carbon filter plate for removing harmful substances and effectively absorbing noxious substances of formaldehyde, benzene and ammonia in indoor air
Implementation Method 4
the filter plate has a filter mesh structure for capturing larger particles
Data Source
AI summary
An air washer with easy replacement of filter components is disclosed, including a cover box and a bottom box. An air inlet is fixedly provided at middle of one side of an outer wall of the bottom box, and an air outlet cover is embedded in a centre of a top of the cover box. A filter is embedded at an upper end inside of the bottom box, a second filter plate is installed at an upper end of the filter, and a first filter plate is installed at an upper end of the second filter plate. An ultraviolet sterilization lamp is fixed on the upper end inside of the bottom box, and a centrifugal fan is fixedly provided at a middle of an inner bottom surface of the bottom box. The air washer can effectively improve the cleanliness of indoor and outdoor airs.