Corona Discharge Brush Assembly with Segmented Joining
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Solution Overview
Problem
Existing brush devices for corona discharge suffer from issues such as discharge brushes falling off or shifting from their predetermined positions, leading to decreased charge and collection performance due to maintenance processes like cleaning with water or air blowing.
Innovation Solution
The brush device is designed with a support board structure that includes a joining mechanism adjacent to each discharge brush, preventing displacement and damage, and features a convex portion to maintain consistent mounting height and resistance, along with an entering prevention mechanism to prevent wire electrodes from entering gaps during cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If discharge brushes are secured without joining means at all intervals, then device complexity is reduced, but reliability deteriorates due to brush falling off or shifting
Solution Approach 1:
The support board is divided into multiple intervals with joining means provided at each interval to secure discharge brushes. This segmentation ensures that each brush is individually anchored, preventing them from falling off or shifting during operation and maintenance while maintaining a relatively simple overall structure.
Solution Approach 2:
Joining means are pre-installed at all intervals on the support board before discharge brushes are mounted. This preliminary preparation ensures that each brush has secure anchoring from the outset, eliminating the risk of brushes falling off or shifting during subsequent operation or maintenance activities.
2Productivity
If discharge brushes are cleaned by water or air blowing, then charge performance is maintained, but reliability deteriorates due to brush bending and wire electrodes entering gaps
Solution Approach 1:
Joining means are provided at all intervals on the support board to create a protective anchoring structure before maintenance operations. This preliminary securing prevents discharge brushes from bending or flexing during cleaning with water or air blowing, and prevents wire electrodes from entering gaps between support plates, thereby maintaining both charge performance and structural integrity during maintenance.
3Reliability
If all discharge brushes are secured with joining means, then reliability is improved, but device complexity increases
Solution Approach 1:
The joining means are designed to serve multiple functions: securing discharge brushes at all intervals, preventing brush falling off or shifting, and maintaining structural integrity during maintenance. This multi-functional design achieves high reliability without proportionally increasing device complexity, as a single joining mechanism addresses multiple concerns simultaneously.
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 design stabilizes the discharge brushes, maintaining charge and collection performance by preventing displacement and damage, thus enhancing discharge efficiency and durability while reducing maintenance-related issues.
Implementation Method 1
a brush device which charges airborne particles or eliminates static electricity of charged particles by corona discharge generated by applying voltage
Data Source
AI summary
The brush device comprises: a plurality of discharge brushes formed by bundling fibrous wire electrodes; a strip-shaped support board including a first plate-shaped member and a second plate-shaped member which hold the discharge brushes from both sides; and a joining means for joining the first plate-shaped member and the second plate-shaped member. The discharge brushes are disposed at intervals in a longitudinal direction of the support board with their tip end portions protruding from the support board along a width direction of the support board, and the joining means is disposed adjacent to each of the discharge brushes.