Photocatalyst filter and electronic device comprising same
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Solution Overview
Problem
Photocatalyst filters used in air purification devices face challenges with energy consumption and contamination accumulation in blind spots, leading to reduced air purifying effectiveness and increased maintenance costs.
Innovation Solution
An electronic device with a photocatalyst filter that includes a flap assembly with a reflecting plate to enhance light distribution, a processor to determine contamination levels, and a recycling mode that adjusts light emission and airflow direction to prevent contaminants from accumulating in blind spots, thereby improving air purification efficiency and extending filter life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If more light sources are provided to enhance air purifying effect, then the air purifying effect increases, but manufacturing costs and energy consumption rise
Solution Approach 1:
A reflecting plate is introduced as an intermediary component to redirect and distribute light within the filter housing. This mediator allows a single light source to effectively illuminate multiple areas including blind spots, achieving enhanced air purifying effect without proportionally increasing the number of light sources or energy consumption
Solution Approach 2:
The reflecting plate utilizes the spatial dimension within the filter housing to redirect light paths. By introducing this additional spatial dimension for light redistribution, the system achieves uniform illumination across the photocatalyst filter surface without requiring additional light sources in every dimension
2Reliability
If more light sources are provided to enhance air purifying effect, then the air purifying effect increases, but manufacturing costs rise
Solution Approach 1:
The reflecting plate serves as a cost-effective intermediary that multiplies the effectiveness of a single light source. This simple reflective surface enables comprehensive illumination of the photocatalyst filter without the need for multiple expensive light sources, thereby reducing manufacturing costs while maintaining air purifying effectiveness
Solution Approach 2:
Instead of changing the quantity of light sources (which increases cost), the invention changes the light distribution parameters by introducing a reflecting plate. This parameter change in light path distribution achieves the same air purifying effect at lower manufacturing cost
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 enhances air purification effectiveness while reducing energy consumption and maintenance costs by ensuring uniform light exposure and efficient contaminant removal, preventing contaminants from accumulating in blind spots and extending the filter's operational life.
Implementation Method 1
The photocatalyst filter may completely decompose volatile organic compounds (VOCs) into carbon dioxide and water, which are harmless to the human body
Implementation Method 2
a light source, such as a light-emitting diode (LED), should be provided in the air purification device
Implementation Method 3
a reflecting plate provided on one surface of the flap assembly and configured increase an amount of light reaching the plurality of photocatalyst beads by reflecting light
Data Source
AI summary
An electronic device includes a housing, a photocatalyst filter, at least one first sensor provided in the housing, a blower fan configured to introduce air into the housing, a light source configured to emit light to the photocatalyst filter, and a processor configured to control the blower fan and the light source, determine a degree of contamination of the photocatalyst filter based on a difference in sensor values between the at least one first sensor provided in the housing and at least one second sensor outside of the housing or a rate of change in sensor values between the at least one first sensor provided in the housing and the at least one second sensor outside the housing, and recycle the photocatalyst filter based on the determined degree of contamination of the photocatalyst filter.