Modular Terminal Ring for Switching Assembly Installation
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Solution Overview
Problem
Conventional switching assemblies are difficult to install in service due to the fixed location of the lower terminal, requiring extensive engineering and planning, and can lead to moisture and environmental contamination when the flange is disassembled from the tank.
Innovation Solution
A modular terminal ring system with upper and lower bushings allows for easier installation by providing accessible lower terminal openings and sealable coupling, reducing the need for disassembly and minimizing contamination risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-piece bushing with fixed lower terminal is used, then the structural integrity and simplicity is improved, but the installation flexibility and accessibility of lower terminal is worsened
Solution Approach 1:
The single-piece bushing is divided into multiple segments: an upper bushing portion, a lower bushing portion, and a modular terminal ring that can be independently assembled and positioned. This segmentation allows the lower terminal to be accessed and connected without disassembling the entire bushing structure, thereby improving installation flexibility while maintaining structural integrity.
2Ease of operation
If the flange is disassembled from the tank to access lower terminal, then the installation flexibility is improved, but the risk of moisture and environmental contamination is worsened
Solution Approach 1:
The bushing is segmented into upper and lower portions connected through a modular terminal ring, allowing the lower terminal to be accessed independently without disassembling the flange from the tank. This eliminates the exposure of internal components to moisture and environmental contamination while maintaining installation flexibility.
Solution Approach 2:
The modular terminal ring acts as an intermediary component between the upper and lower bushing portions, providing a sealed interface that allows terminal access while preventing moisture and contamination from entering the internal cavity. This intermediary structure maintains the sealed environment while enabling operational access.
3Ease of operation
If extensive engineering and planning is done for installation, then the installation feasibility is improved, but the installation time and complexity is worsened
Solution Approach 1:
The segmented bushing design with modular terminal ring allows for simplified installation procedures where the lower terminal can be accessed directly without extensive disassembly or reconfiguration. This reduces both the engineering planning required and the actual installation time while maintaining feasibility for various installation scenarios.
Data Source
AI summary
A switching assembly for interrupting current from an upper terminal to a lower terminal. The switching assembly includes an upper bushing, a lower bushing sealably coupled to the upper bushing, the upper terminal coupled to the upper bushing, at least one lower terminal, and a switching medium positioned within a channel formed within the upper bushing. The lower terminal is electrically coupled to the switching medium. According to some embodiments, one or more of the lower terminals are coupled into one or more lower terminal openings formed within at least one of the upper bushing and the lower bushing. According to some exemplary embodiments, the assembly includes a modular terminal ring positioned between the upper bushing and the lower bushing and sealably coupled to both. The one or more lower terminals are coupled into one or more lower terminal openings formed within a perimeter of the modular terminal ring.