Threaded Grounding Brush Filaments for Rotating Plate Discharge
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for mitigating electrical discharges in rotating machinery, such as conductive brushes, often suffer from damage due to extreme translational forces and inadequate protection, leading to mechanical damage and premature bearing failure from parasitic current buildup.
Innovation Solution
A grounding pen brush system featuring two or more bundles of conductive filaments separated by a threshold distance, secured with external threads and retainers, which provides a low-impedance path to ground without continuous contact, effectively dissipating electrical charges and reducing wear and vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional conductive brushes are used to mitigate electrical discharges, then a path to ground is provided, but extreme translational forces damage the brushes and they cannot provide sufficient protection
Solution Approach 1:
The conductive brush is segmented into multiple independent filaments (e.g., 19 filaments in one embodiment) rather than a single solid brush. This segmentation allows each filament to independently withstand translational forces while collectively providing a reliable grounding path, resolving the contradiction between protection effectiveness and durability.
Solution Approach 2:
The patent uses flexible conductive filaments that can bend and deform under extreme translational forces without breaking. These thin, flexible elements maintain electrical contact while absorbing mechanical stress, enabling the brush to provide sufficient protection without suffering damage from operational forces.
2Reliability
If continuous contact is maintained for grounding, then electrical charges are dissipated, but wear and vibration increase leading to premature failure
Solution Approach 1:
The grounding system uses periodic intermittent contact rather than continuous contact. The filaments make contact with the rotating member surface periodically during rotation, which is sufficient to dissipate electrical charges while reducing cumulative wear and vibration on the bearings, thereby extending component lifespan.
Solution Approach 2:
The patent employs multiple inexpensive, replaceable filaments that can wear individually without affecting the overall grounding system. These short-living filaments are easily replaced when worn, allowing the grounding function to continue effectively while minimizing impact on expensive components like bearings.
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 grounding pen brush effectively mitigates electrical discharges and prevents mechanical damage by providing a stable and efficient path to ground, reducing wear and vibration, thus extending the lifespan of bearings and preventing premature failure.
Implementation Method 1
the conductive filaments making electrical contact with a conductive element during rotational movement of the rotating plate
Data Source
AI summary
Systems and methods to mitigate electrical voltage on a rotating plate are disclosed. An example grounding pen brush includes two or more bundles of conductive filaments that are separated from the others by a threshold distance.