Air cleaning module
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Solution Overview
Problem
Current air cleaning technologies face inefficiencies in deodorization and air purification, particularly in ensuring uniform airflow and optimal interaction between air blower, filter, and light source, which affects the removal of pollutants and contaminants.
Innovation Solution
An air cleaning module design featuring a filter, an air blower, a light source unit, and guides that direct airflow to the filter, with the light source unit providing light to photocatalytic or HEPA filters to enhance deodorization and purification efficiency, and a sensor to control the air blower and light source based on pollutant presence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the air blower is positioned close to the filter to improve airflow efficiency, then the deodorization efficiency is improved, but the interaction between the light source unit and filter becomes suboptimal
Solution Approach 1:
The patent introduces a guide structure with a specific three-dimensional configuration (including inclined surfaces and curved portions) to control airflow direction. This spatial arrangement allows the air blower to be positioned at an optimal distance from the filter while maintaining efficient airflow through the guide's flow path, thereby resolving the contradiction between proximity for efficiency and distance for light interaction.
2Speed
If the airflow passage is narrow to increase air velocity, then the air blower efficiency is improved, but the uniformity of airflow distribution across the filter becomes poor
Solution Approach 1:
The guide includes a curved portion that smoothly transitions airflow from the blowing port toward the filter. This curvature design prevents abrupt flow direction changes, maintains flow velocity while improving distribution uniformity, and avoids turbulence that would occur with sharp angles or sudden expansions.
Solution Approach 2:
The guide features different geometric configurations in different regions: an inclined surface near the blowing port to direct initial airflow, a curved portion for smooth transition, and a flow path width that varies along the flow direction. This localized optimization of geometry ensures both high velocity and uniform distribution across the filter surface.
3Stability of the object's composition
If multiple guides are added to improve airflow distribution, then the airflow uniformity is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple guide functions (flow direction control, flow path definition, and airflow distribution) into a single integrated guide structure. This unified design achieves improved airflow uniformity without the complexity of multiple separate guide components, as the single guide incorporates inclined surfaces, curved portions, and variable width sections that collectively manage the airflow.
4Ease of manufacture
If the guide flow path width is constant, then the manufacturing is simplified, but the airflow velocity distribution becomes non-uniform
Solution Approach 1:
The guide flow path width is designed to vary along the flow direction, being narrower near the blowing port and wider near the filter. This parameter change optimizes airflow velocity distribution by maintaining higher velocities where needed while ensuring adequate coverage across the filter surface, balancing manufacturing feasibility with performance requirements.
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 module achieves improved deodorization and purification efficiency by stabilizing airflow and optimizing the interaction between components, leading to enhanced removal of pollutants and contaminants, as demonstrated by increased acetaldehyde and organic material removal rates.
Implementation Method 1
a light source unit provided between the air blower and the filter to provide a light to the filter
Implementation Method 2
an air blower spaced apart from the filter to provide a fluid to the filter through a blowing port
Data Source
AI summary
An air cleaning module includes a filter, an air blower spaced apart from the filter to provide a fluid to the filter through a blowing port, a light source unit provided between the air blower and the filter to provide a light to the filter, and at least one guide provided between the air blower and the filter to guide a flow path through which the fluid flows. The guide guides a width of a passage of the fluid to become wider toward the filter.