Vehicle Air Purifier Integrating Electrostatic Precipitator and Activated Carbon Filter
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Solution Overview
Problem
Existing vehicle air purification methods are ineffective in simultaneously reducing harmful gases and particles, often requiring complex and costly devices with low efficiency and high ozone generation.
Innovation Solution
A vehicle air purifying apparatus that uses a charger to ionize particles, a removable collecting electrode to capture charged particles, and an activated carbon fiber filter to filter gases, without generating ozone, allowing for extended filter lifespan and easy electrode reuse.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an electrostatic precipitator and activated carbon filter are used separately to process harmful gas and fine particles, then the purification effectiveness is improved, but the device size and structural complexity increase
Solution Approach 1:
The patent combines the electrostatic precipitator and activated carbon filter into a single integrated device where the collecting electrode is positioned inside the filter housing. This merging allows simultaneous removal of particles (via electrostatic collection) and harmful gases (via activated carbon adsorption) without requiring separate devices, thereby reducing overall device size and structural complexity while maintaining purification effectiveness.
Solution Approach 2:
The integrated device performs multiple functions simultaneously: the collecting electrode removes particles through electrostatic attraction, while the activated carbon filter removes harmful gases through adsorption. This multi-functionality allows a single device to handle both types of pollutants, eliminating the need for separate processing systems and reducing overall system complexity.
2Volume of moving object
If an activated carbon fiber filter is used to charge and process particles simultaneously, then the device size is reduced, but the efficiency decreases and ozone generation rate increases
Solution Approach 1:
The patent segments the particle processing function from the gas processing function. The collecting electrode specifically handles particle collection through electrostatic attraction, while the activated carbon filter specifically handles harmful gas removal through adsorption. This functional segmentation allows each component to operate at optimal efficiency without the compromises required by combined carbon fiber filters, thereby improving overall processing efficiency while maintaining a compact design.
3Productivity
If high voltage is applied to discharge electrode to improve particle removal efficiency, then the processing efficiency is improved, but ozone generation rate increases
Solution Approach 1:
The patent optimizes the voltage parameters of the collecting electrode to achieve effective particle removal while minimizing ozone generation. By carefully controlling the voltage level and electrical field strength, the system maintains high particle collection efficiency without creating excessive ozone as a byproduct, thus resolving the trade-off between productivity and harmful factor generation.
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
Effectively reduces both harmful gases and particles, including ultrafine particles, while extending filter lifespan and enabling easy maintenance of the collecting electrode, without ozone generation.
Implementation Method 1
a charger configured to discharge positive (+) ions or negative (−) ions to charge the particles included in the harmful gas
Implementation Method 2
a removable collecting electrode configured to have positive (+) or negative (−) polarity to allow at least some of the particles charged by the charger to be attached thereto
Implementation Method 3
a filter configured to filter harmful gas and/or particles that are not attached to the removable collecting electrode
Data Source
AI summary
A vehicle air purifying apparatus is provided. The vehicle air purifying apparatus includes: a charger configured to discharge positive (+) ions or negative (−) ions to charge particles included in harmful gas; a removable collecting electrode configured to have positive (+) or negative (−) polarity to allow the particles charged by the charger to be attached thereto; and a filter configured to filter harmful gas and have positive (+) or negative (−) polarity, and the filter is formed in a tubular shape having an empty space therein and the removable collecting electrode is inserted into the filter.