Electronic dust collecting device
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electric dust collecting devices face issues with low charging performance and sparking due to separate charging and collecting portions, leading to electrical interference and noise.
Innovation Solution
An integrated electric dust collecting device with a semi-conductive structure, including a semi-conductive filter mesh or grille, and high-voltage and low-voltage electrodes, where the distance between discharge portions is optimized to minimize interference, with protrusions and angled openings to enhance ion emission and collection efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If separate charging and collecting portions are used, then the device can perform dust collection, but the device complexity increases and overall thickness increases
Solution Approach 1:
The patent combines the charging portion and collecting portion into a single integrated structure. The high-voltage electrode serves dual functions: its exposed portion acts as a discharge electrode for charging aerosols, while its covered portion functions as a collecting electrode. This merging eliminates the need for separate charging and collecting portions, reducing device complexity and overall thickness while maintaining effective charging and collection performance
2Reliability
If discharge portions are arranged adjacent to each other, then the device structure is compact, but electrical interference occurs and charging performance deteriorates
Solution Approach 1:
The patent introduces a dielectric layer as an intermediary between adjacent discharge portions of the high-voltage electrode. This dielectric layer acts as an electrical insulator that prevents direct electrical interference and sparking between neighboring discharge portions, allowing them to be arranged closer together while maintaining stable charging performance and reducing harmful electrical interference
3Length of stationary object
If the distance between discharge portions is small, then the device is more compact, but sparking and discharge noise occur
Solution Approach 1:
The dielectric layer positioned between adjacent discharge portions serves as a mediator that blocks electrical breakdown and sparking. By introducing this insulating barrier, the patent enables smaller spacing between discharge portions without generating sparks or discharge noise, thus achieving a more compact device structure while eliminating harmful electrical discharges
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 improves charging performance, reduces sparking and noise, and enhances aerosol collection efficiency by integrating discharge and collection portions, thereby stabilizing the device's operation.
Implementation Method 1
a charging portion that charges pollutants contained in the air to a positive pole (+) or a negative pole (−) by electrical discharge
Implementation Method 2
a collecting portion that include a high-voltage electrode and a low-voltage electrode to collect the pollutants charged by the charging portion
Data Source
AI summary
Disclosed herein is an electric dust collecting device including: a semi-conductive structure including at least one of a semi-conductive filter mesh or a semi-conductive grille, a plurality of low-voltage electrodes disposed on a downstream side of an air flow path than the semi-conductive structure, including a first dielectric layer and a first conductive electrode layer in the first dielectric layer, and configured to receive an applied low voltage, and a plurality of high-voltage electrodes arranged alternately with the plurality of low-voltage electrodes, including a second dielectric layer and a second conductive electrode layer in the second dielectric layer, and configured to receive an applied high-voltage, wherein the second conductive electrode layer includes a first discharge portion exposed to the outside of the second dielectric layer in an air flow direction and a second discharge portion adjacent to the first discharge portion, and a distance P between the first discharge portion and the second discharge portion is greater than a distance D between the first discharge portion or second discharge portion and the semi-conductive structure.