Multi-brush Circuit Board Repair for Gold Wire Slip Ring Wear
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Solution Overview
Problem
Gold wire slip ring transmitters in wind power plants face significant wear issues, leading to costly and complex replacements of both the gold wire circuit board and the slip ring, which reduces their lifespan and increases maintenance challenges.
Innovation Solution
The integration of a multi-brush circuit board with a gold wire slip ring, allowing the multi-brush board to adapt to the worn gold wire slip ring's grooves and maintain contact, thereby extending the life of the slip ring and avoiding its premature replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a gold wire circuit board is used to transmit electrical signals, then good contact properties with low abrasion are achieved, but deposits form on the slip ring and gold wires wear out faster
Solution Approach 1:
The patent changes the material parameter of the circuit board from gold wire to multi-brush configuration. The multi-brush circuit board uses multiple flexible brush wires instead of rigid gold wires, fundamentally altering the contact mechanism to prevent groove formation and reduce wear on the slip ring, thereby extending service life while maintaining reliable electrical contact
Solution Approach 2:
The patent employs a composite structure where the multi-brush circuit board combines multiple brush wires with different properties - some wires are designed to be replaceable while others remain fixed. This composite approach allows the system to maintain good electrical contact through the collective action of multiple wires while enabling selective replacement of worn components, resolving the contradiction between contact reliability and service life
2Reliability
If the slip ring is replaced due to wear, then the transmitter can continue to function, but the replacement is complicated and expensive
Solution Approach 1:
The patent segments the circuit board into replaceable and non-replaceable parts. The multi-brush circuit board is designed with a section of brush wires that can be easily replaced without replacing the entire slip ring or the complete circuit board assembly. This segmentation simplifies the replacement process, reducing both complexity and cost while maintaining transmitter functionality
Solution Approach 2:
The patent extracts the wear-prone component (the brush wire section of the circuit board) as a separate, independently replaceable element. By designing the multi-brush circuit board with replaceable brush wires that can be removed and replaced without affecting the slip ring or other components, the system enables simple maintenance operations that avoid complicated and expensive slip ring replacement
3Ease of operation
If a multi-brush circuit board is used, then robust handling and avoidance of deposits are achieved, but the wires wear the slip ring surface
Solution Approach 1:
The patent applies dynamics by designing the multi-brush circuit board with flexible, movable brush wires that can adapt their configuration during operation. The brush wires are designed to flex and move independently, allowing them to conform to the slip ring surface and distribute contact pressure more evenly, thereby reducing localized wear while maintaining robust electrical contact and avoiding deposit formation
Data Source
Figure 1
Figure 2~6
AI summary
The invention relates to a method for repairing a gold wire-type slip ring assembly (200) which has a slip ring (202), in particular a gold ring for use with a gold wire printed circuit board (204) as the printed circuit board (204). The method has the following steps: - removing a gold wire printed circuit board (204) from the slip ring assembly (200); and - inserting a multiple-brush printed circuit board (304) in exchange for the gold wire printed circuit board (204).