Conductive Fiber Grounding Ring for Motor Bearing Corrosion
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Solution Overview
Problem
Existing anti-electrolytic corrosion devices for motors have high manufacturing costs, complex structures, and are inconvenient to install, leading to frequent electrolytic corrosion, which damages bearings and shortens their lifespan, especially in high-voltage or large-capacity motors, requiring costly replacements.
Innovation Solution
An anti-electrolytic corrosion conductive ring using a conductive fiber with a simple structure, coupled to the motor housing, effectively guides current from the shaft to the ground through a conductive fiber part that increases frictional contact area, preventing electrolytic corrosion and improving motor efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a grounding brush or conventional anti-electrolytic corrosion device is used, then current can be conducted to ground, but the device structure becomes complex and manufacturing cost increases
Solution Approach 1:
The invention extracts the essential function of current conduction from complex conventional devices and implements it through a simple conductive ring with conductive fiber, eliminating unnecessary structural elements while maintaining the core anti-electrolytic corrosion capability
Solution Approach 2:
The conductive ring uses inexpensive conductive fiber material that can be easily replaced, reducing manufacturing cost while maintaining effective current conduction function
2Reliability
If an insulated bearing or SGR is used, then electrolytic corrosion is prevented, but installation becomes complicated and expert installation is required
Solution Approach 1:
The invention divides the anti-electrolytic corrosion function into a separate conductive ring component that can be independently installed on the shaft, simplifying the installation process and eliminating the need for complex motor disassembly or expert installation
Solution Approach 2:
The conductive ring is designed to be easily installed and maintained by regular personnel without requiring expert knowledge, making the system self-serviceable
3Reliability
If a preventing device surrounding the shaft is used, then current conduction is achieved, but the shaft rotational force is reduced due to friction and wear
Solution Approach 1:
The conductive fiber in the conductive ring acts as a flexible thin film that contacts the shaft surface, providing current conduction path while minimizing friction and wear compared to rigid surrounding structures
Solution Approach 2:
The conductive fiber serves as an intermediary between the shaft and the conductive ring, enabling current conduction while reducing direct mechanical contact and friction between the shaft and the preventing device
4Reliability
If conventional anti-electrolytic corrosion devices are used, then bearing protection is provided, but manufacturing cost increases due to complicated structure
Solution Approach 1:
The conductive ring uses inexpensive conductive fiber material and simple ring structure, significantly reducing manufacturing cost while maintaining effective bearing protection against electrolytic corrosion
Solution Approach 2:
The invention extracts the essential protective function from complex conventional devices and implements it through a simple, easily manufacturable conductive ring structure
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 conductive ring reduces manufacturing costs, prevents electrolytic corrosion, and extends the lifespan and operational efficiency of motors by ensuring current flow to the ground without residual damage, applicable to various motor types.
Implementation Method 1
a current generated in the shaft flows to the ring frame along the conductive fiber part and then flows to the housing
Implementation Method 2
increasing a friction area between a conductive fiber part and a ring frame, thereby effectively preventing an electrolytic corrosion phenomenon
Data Source
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AI summary
An anti-electrolytic corrosion conductive ring using a conductive fiber is disclosed. The anti-electrolytic corrosion conductive ring reduces a manufacturing cost due to a simple structure thereof compared to a conventional anti-electrolytic corrosion device, is applicable to various types of motors, and is capable of effectively preventing an electrolytic corrosion phenomenon.