Integrated Dust-Collecting Filter for Compact Air Conditioning
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Solution Overview
Problem
Conventional dust-collecting filters in air conditioning apparatuses face issues with increased size and volume due to separate discharge and dust-collecting units, leading to higher air pressure loss and shorter service life, making them unsuitable for narrow spaces and requiring frequent replacement.
Innovation Solution
An electrical dust-collecting filter with a discharge unit integrally constructed within the dust-collecting unit at the inlets of air channels, utilizing corona discharge and ionized electrodes to reduce size and volume, allowing for efficient dust collection and extended maintenance intervals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a non-woven filter with multiple layers is used to increase fine dust collection efficiency, then dust collection performance is improved, but air pressure loss increases and service life decreases
Solution Approach 1:
The patent replaces the mechanical filtration system (non-woven filter layers) with an electrical field-based dust collection system. Corona discharge electrodes generate ionized air that attracts dust particles electrically, eliminating the need for dense physical filter layers and reducing air pressure loss while maintaining dust collection efficiency
Solution Approach 2:
The patent changes the dust collection mechanism from physical barrier (mechanical) to electrical attraction (electrical field). By applying high voltage to corona discharge electrodes, the system creates ionized regions that actively attract dust particles, transforming the collection parameter from passive filtration to active electrical attraction
2Reliability
If a non-woven filter with multiple layers is used to increase fine dust collection efficiency, then dust collection performance is improved, but service life is reduced requiring frequent replacement
Solution Approach 1:
The patent replaces the consumable mechanical filter with a durable electrical field generation system. The corona discharge electrodes and collection electrodes can be cleaned and reused indefinitely, eliminating the need for frequent replacement while maintaining dust collection performance
Solution Approach 2:
The dust collection electrodes can be cleaned by reversing the electrical field polarity or using water冲洗, allowing the system to restore its own functionality without replacement. This self-maintenance capability extends service life significantly compared to disposable non-woven filters
3Reliability
If separate discharge unit and dust-collecting unit are used, then dust collection function is achieved, but filter size and volume increase
Solution Approach 1:
The patent merges the discharge unit and dust-collecting unit into a single integrated structure. The corona discharge electrodes are positioned within the dust collection chamber, and the collection electrodes surround the air channels, combining both functions in one compact unit rather than requiring separate components
4Volume of stationary object
If integrated discharge unit and dust-collecting unit are used, then filter size is reduced, but installation space constraint increases
Solution Approach 1:
The patent uses three-dimensional air channels with discharge apertures on multiple surfaces (upper and lower surfaces). The electrodes are arranged in spatial configurations that maximize dust collection efficiency within a compact volume, allowing the filter to fit in narrow vehicle spaces by utilizing spatial dimensionality rather than increasing linear dimensions
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 compact design enables the filter to be used in narrow spaces and extends the service life by reducing the need for frequent replacements, as the integrated discharge unit and dust-collecting electrodes effectively manage air pressure and dust collection.
Implementation Method 1
A discharge unit may be integrally formed with the dust-collecting unit at the inlets of the plurality of air channels and may cause corona discharge in the air introduced into the inlets of the plurality of air channels.
Implementation Method 2
The dust-collecting electrode and a second dust-collecting electrode may be ionized by the corona discharge, on wall surfaces of the air channels using an electric field.
Implementation Method 3
dust-collecting electrodes that may be configured to generate an electrical field in the dust-collecting body
Data Source
AI summary
An electrical dust-collecting filter is provided. The electrical dust-collecting filter includes a dust-collecting unit having a dust-collecting body and dust-collecting electrodes configured to generate an electrical field in the dust-collecting body. The dust-collecting body has a plurality of air channels laterally formed therethrough and discharge apertures formed in upper and lower surfaces thereof at inlets of the plurality of air channels. A discharge unit is integrally formed with the dust-collecting unit at the inlets of the plurality of air channels to facilitate corona discharge in air introduced into the inlets of the plurality of air channels.