Adaptive Air Purifier Fan Control for Energy-Efficient Filtration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing air purifiers lack energy efficiency and fail to effectively inform users about filtration efficiency and air quality improvement, while alternative technologies using photocatalysis or cold plasma are energy-intensive and costly.
Innovation Solution
An air purifier with an adaptive control circuit that adjusts airflow based on real-time air quality measurements, combining mechanical and adsorption filtration using zeolite granules and activated carbon, and communication means to inform users about operating parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If photocatalysis or cold plasma is used for filtration, then filtration efficiency is improved, but energy consumption increases and implementation cost increases
Solution Approach 1:
The patent changes the operating parameters of the fan based on real-time air quality measurements. The control circuit adjusts the fan speed dynamically - increasing it when air quality deteriorates and decreasing it when air quality improves - thereby optimizing energy consumption while maintaining effective filtration through the activated carbon and zeolite media.
Solution Approach 2:
The air purifier uses its own sensing means to monitor air quality and automatically adjusts its operation through the control circuit. The system serves itself by making real-time decisions about fan speed based on measured parameters, eliminating the need for external control systems or manual intervention.
2Reliability
If photocatalysis or cold plasma is used for filtration, then filtration efficiency is improved, but implementation cost increases
Solution Approach 1:
The patent employs relatively inexpensive filtration materials - activated carbon and zeolite granules - that can be easily manufactured and replaced. These conventional materials are much cheaper than photocatalytic coatings or plasma generation systems, while the control circuit optimizes their effectiveness through adaptive fan speed adjustment.
Solution Approach 2:
By dynamically adjusting fan speed based on air quality measurements, the system maximizes the utilization of the filtration media, ensuring that the relatively simple and inexpensive activated carbon and zeolite filters operate at optimal efficiency without requiring expensive advanced technologies.
3Productivity
If fan speed is increased to improve purification, then filtration efficiency is improved, but energy consumption increases
Solution Approach 1:
The patent makes the fan speed dynamic rather than fixed. The control circuit continuously receives air quality measurements from the sensing means and adjusts the fan speed in real-time, increasing it when purification demand is high and decreasing it when air quality is acceptable, thereby optimizing the balance between purification rate and energy consumption.
Solution Approach 2:
The system implements a feedback loop where the sensing means measures air quality parameters, the control circuit processes this information, and the fan speed is adjusted accordingly. This closed-loop control ensures the fan operates at the minimum necessary speed to maintain acceptable air quality, avoiding unnecessary energy consumption while ensuring adequate purification when needed.
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 air purifier achieves higher energy efficiency and filtration efficacy by dynamically adjusting airflow and using a combination of filtration methods to effectively remove harmful particles and molecules, while providing users with insights into air quality improvements and filtration performance.
Implementation Method 1
a fan, configured to generate an air flow from the inlet to the outlet through the channel
Implementation Method 2
purification means, arranged inside the channel and configured to purify the air flow... combining mechanical and adsorption filtration using zeolite granules and activated carbon
Data Source
AI summary
Air purifier (1) comprising an air channel (10) extending from an inlet (11) to an outlet (12), a fan (13) configured to generate an air flow from the inlet (11) to the outlet (12) through the channel (10), purification means (14) arranged inside the channel (10) and configured to purify the air flow, main sensing means (15) configured to measure the quality of the air flow at a point of the channel (10) and a control circuit (16) in connection with the fan (13) and the main sensing means (15), where the control circuit (16) has a program configured to compare the parameters provided by the main sensing means (15) with preset target parameters and, from said comparison, adapt the air flow generated by the fan (13).