Sealed Slip Ring Transmission for Stable Ion Meter Conduction
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Solution Overview
Problem
The slip ring mechanism in ion meters, used for rotating working electrodes, is prone to conduction failures due to dust and corrosive gases, necessitating frequent maintenance to maintain stable current measurement.
Innovation Solution
An electric transmission mechanism with a tubular ring and brushes, where the contact area is housed within a bearing and protected by a housing, preventing external foreign matter entry and reducing maintenance needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a slip ring mechanism is used to rotate the working electrode, then continuous current measurement is enabled, but dust and corrosive gases cause conduction deterioration requiring frequent maintenance
Solution Approach 1:
The patent applies the inert atmosphere principle by creating a sealed housing environment around the slip ring mechanism that excludes external contaminants such as dust and corrosive gases. The housing forms a protective barrier that maintains a clean internal atmosphere, preventing foreign matter from entering the contact interface between the ring and brush, thereby ensuring stable conduction without frequent maintenance.
2Reliability
If the working electrode is continuously rotated using a motor, then measurement stability is improved, but motor operation generates dust that enters the slip ring mechanism and deteriorates conduction
Solution Approach 1:
The patent applies segmentation by dividing the system into separate functional zones: the motor and power transmission mechanism operate in one space while the slip ring mechanism operates in a separate, sealed housing. This spatial segmentation prevents dust generated by the motor from contaminating the slip ring contact interface, allowing continuous rotation for stable measurement while protecting against dust contamination.
Solution Approach 2:
The sealed housing creates a protected environment around the slip ring mechanism that excludes dust particles generated by motor operation. This inert atmosphere approach ensures that the conduction interface remains free from dust contamination even during continuous electrode rotation, maintaining both measurement stability and conduction quality.
3Reliability
If corrosive gas such as chlorine gas contacts the ring or brush, then the surface of the ring or brush deteriorates, but sealing the mechanism increases structural complexity
Solution Approach 1:
The patent implements a sealed housing that creates a protected environment around the slip ring mechanism, excluding corrosive gases such as chlorine gas from contacting the ring and brush surfaces. This simple yet effective sealing approach preserves surface durability without requiring complex protective measures, as the housing itself serves as the primary barrier against chemical contamination.
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 ensures stable conduction between the ring and brush, reducing the need for frequent maintenance and preventing corrosive gas damage, thus maintaining consistent measurement performance.
Implementation Method 1
a conductive brush slidably contacting with a surface of the ring
Implementation Method 2
a bearing including an inner race fixed to the ring
Data Source
AI summary
An electric transmission mechanism according to one aspect of the present invention may include a tubular ring fixed to a shaft electively connected to an electrode, at least one brush slidably contacting with a circumferential surface of the ring, a bearing including an inner race fixed to the ring, and a housing which is fixed to an outer race of the bearing and accommodates a contact part of the ring and the brush therein.