Air Purifier Scent Control to Extend Filter Life
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing air purifiers suffer from reduced filter lifetime due to scent absorption, especially when the scent dispenser operates at higher fan speeds or for extended periods, leading to inefficient scent release and air quality improvement.
Innovation Solution
An air treatment device with an air purifying unit, scent dispenser, air detector, and processor that adjusts the fan speed and scent dispensing flow based on air quality, reducing scent absorption by the filter when air quality is poor and increasing scent release when air quality is good.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the scent dispenser operates at constant high speed to dispense scent continuously, then the scent distribution is improved, but the filter lifetime is reduced due to increased scent absorption
Solution Approach 1:
The patent applies dynamics by making the scent dispenser's operating speed variable rather than constant. The processor dynamically adjusts the dispensing speed based on real-time air quality detection, controlling the dispenser to operate at different speeds at different times to optimize both scent distribution and filter lifetime.
Solution Approach 2:
The patent implements feedback control where the air detector continuously monitors air quality and provides signals to the processor, which then adjusts the scent dispenser's operating speed accordingly. This closed-loop feedback system ensures the dispenser operates optimally based on actual air conditions, preventing excessive scent absorption by the filter.
2Productivity
If the fan speed of the air purifier is increased to improve air purification efficiency, then the air quality improvement speed is enhanced, but the scent absorption by the filter increases leading to shorter filter lifetime
Solution Approach 1:
The patent makes the fan speed dynamic by linking it to air quality conditions. The processor adjusts the fan speed based on real-time detection, operating at high speed only when air quality deteriorates and at lower speed when air quality is acceptable, thus maintaining purification efficiency while reducing unnecessary scent absorption.
Solution Approach 2:
The patent changes the operating parameters (fan speed and dispensing speed) based on detected air quality conditions. The processor modifies these parameters dynamically, adjusting them to appropriate levels according to the current air state, which resolves the contradiction between purification efficiency and filter lifetime.
3Quantity of substance
If the scent dispenser operates for extended periods at high speed, then the pleasant smell is maintained, but the total scent absorption by the filter increases reducing its lifetime
Solution Approach 1:
The feedback mechanism monitors air quality and controls the scent dispenser's operation accordingly. The dispenser operates at high speed only when air quality indicators suggest it is necessary, and reduces or stops operation when air quality improves, preventing excessive scent accumulation and absorption by the filter.
Solution Approach 2:
The patent implements periodic operation of the scent dispenser based on air quality cycles. Instead of continuous operation, the dispenser activates periodically when air quality deteriorates and pauses when air quality is acceptable, reducing total scent consumption and filter absorption over time.
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
This approach enhances air quality improvement by optimizing fan speed and scent dispensing, prolonging filter life and ensuring effective scent distribution, while minimizing scent absorption by the filter.
Implementation Method 1
an air purifying unit configured to purify air
Implementation Method 2
a scent dispenser configured to dispense scent
Implementation Method 3
a scent dispenser configured to dispense scent
Implementation Method 4
the scent itself will also be absorbed by the filters of the air purifier
Data Source
AI summary
An embodiment of the invention provides an air treatment device. The air treatment device comprises an air purifying unit configured to purify air; a scent dispenser configured to dispense scent; an air detector, configured to detect the purified air and provide an output signal; and a processor configured to receive the output signal from the air detector and control the operation speed of the air purifying unit and the dispensing flow of scent dispensed by the scent dispenser, based on the output signal, wherein the dispensing flow of scent dispensed by the scent dispenser is decreased with the increase of the operating speed of the air purifying unit. Another embodiment of the invention provides a method of controlling a scent dispenser and an air purifying unit of an air treatment device, wherein the air treatment device further includes an air detector and a processor. The method comprises the steps of purifying air by using the air purifying unit; detecting the purified air by using the air detector; controlling, by using the processor, the operating speed of the air purifying unit and the dispensing flow of scent dispensed by the scent dispenser, based on the detection result, wherein the dispensing flow of scent dispensed by the scent dispenser is decreased with the increase of the operating speed of the air purifying unit.