Bus Bar Connecting Device With Intermediate Tank
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Solution Overview
Problem
The existing bus bar connecting devices require precise alignment of bushings, which is time-consuming and may lead to insulation performance deterioration if not accurately matched, and can result in rework if positional accuracy is not met, complicating the assembly of switchgear units.
Innovation Solution
A bus bar connecting device with a conductive connecting conductor part and an intermediate tank that allows for flexible alignment and sealing, enabling easy assembly and reduced gas treatment, featuring a hand hole for simplified connection and miniaturized design to reduce external switchgear size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a solid insulating adapter is used to connect bushings, then insulation performance is improved, but assembly time increases due to the need for precise axis alignment
Solution Approach 1:
The patent introduces an intermediate tank as a mediator component that houses the connecting conductor part and protruding parts. This intermediate structure allows for flexible positioning and connection without requiring precise axis alignment between adjacent bushings, thereby reducing assembly time while maintaining insulation performance through the sealed intermediate tank design.
2Reliability
If precise axis alignment of bushings is required, then connection reliability is improved, but device complexity increases due to adjustment requirements
Solution Approach 1:
The patent divides the connection system into separate functional components: the intermediate tank, the connecting conductor part, and the protruding parts. This segmentation allows each component to be independently positioned and connected without requiring complex adjustment mechanisms for precise axis alignment, simplifying the overall device while maintaining connection reliability.
3Manufacturing precision
If bushings are pre-installed with fixed positions, then manufacturing precision is improved, but adaptability decreases when positional accuracy is not met
Solution Approach 1:
The patent employs a dynamic connection approach where the connecting conductor part can be flexibly positioned and connected within the intermediate tank. This dynamic design allows the system to adapt to variations in bushing positions without requiring high manufacturing precision, enabling rework and adjustment if positional accuracy is not initially met.
4Reliability
If a solid insulating adapter structure is used, then insulation performance is maintained, but the external size of switchgear increases
Solution Approach 1:
The patent implements a nested structure where the connecting conductor part and protruding parts are housed within the intermediate tank. This nesting approach consolidates the connection components into a compact sealed unit, maintaining insulation performance without increasing the external size of the switchgear, as the intermediate tank itself forms the outer boundary of the connection assembly.
Data Source
AI summary
A bus bar connecting device having a first bushing which has a first protruding part projecting to the outside of the first pressure vessel 4 and a first connection part, a second bushing which has a second protruding part projecting to the outside of the second pressure vessel and a second connection part, a connecting conductor part that electrically connects the first connection part and the second connection part, and an intermediate tank having a hand hole and a lid for sealing, wherein the intermediate tank stores the first protruding part and the second protruding part in an own internal space so as to seal the stored parts, thereby the bus bar connecting device that has good switchgear assembly and can improve a line unit workability is provided.