Vacuum Interrupter Guide Unit for Shielding Plate Alignment
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Solution Overview
Problem
The existing vacuum interrupters face challenges in aligning the central arc shielding plate without bias in the radial direction during installation, leading to increased fabrication costs, reduced productivity, and higher defect rates due to the need for additional components and complex welding processes.
Innovation Solution
A vacuum interrupter design featuring a protruding guide unit at the stationary electrode seal cup, which includes circular, arcuate, or multiple protrusion guide portions to align and secure the central arc shielding plate in a radial direction, preventing side bias and simplifying the installation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If additional components and complex welding processes are used to align the central arc shielding plate, then alignment precision is improved, but device complexity and fabrication cost increase
Solution Approach 1:
The stationary electrode seal cup incorporates guide portions that directly guide the central arc shielding plate into proper alignment during installation. The guide portions on the seal cup and the corresponding guideĉ§½ on the shielding plate work together to automatically ensure correct positioning without requiring external alignment tools or additional components, making the system self-aligning and eliminating complex welding procedures.
Solution Approach 2:
The guide portions protruding from the stationary electrode seal cup serve as intermediary elements that mediate between the seal cup and the central arc shielding plate. These guide portions transfer and constrain the positioning force during installation, ensuring the shielding plate aligns correctly with the seal cup and stationary electrode cover plate through a simple mechanical interface rather than complex welding operations.
2Manufacturing precision
If additional components are added to guide the central arc shielding plate alignment, then alignment precision is improved, but productivity decreases
Solution Approach 1:
The guide portions are integrated directly into the stationary electrode seal cup structure, merging the alignment function with the existing component rather than adding separate guide components. This integration eliminates the need for additional parts and simplifies the installation process to a single welding operation, thereby improving both alignment precision and installation efficiency.
Solution Approach 2:
The stationary electrode seal cup with its integrated guide portions performs the dual function of sealing and guiding alignment automatically during installation. The guide portions self-align the central arc shielding plate through simple mechanical constraint, eliminating the need for complex alignment procedures or additional components, thus maintaining high installation efficiency while ensuring precise alignment.
3Manufacturing precision
If additional components and complex welding are used for alignment, then alignment precision is improved, but fabrication cost increases
Solution Approach 1:
The guide portions are merged into the stationary electrode seal cup structure, eliminating the need for separate alignment components. This reduces the total number of parts that need to be manufactured, inventoried, and assembled, thereby reducing fabrication costs while maintaining high alignment precision through the integrated guide structure.
Solution Approach 2:
The stationary electrode seal cup with integrated guide portions provides self-alignment functionality, eliminating the need for additional alignment components or complex welding procedures. This simplification reduces manufacturing complexity and fabrication costs while ensuring precise alignment of the central arc shielding plate through the built-in guide mechanism.
Data Source
AI summary
The present disclosure relates to a vacuum interrupter capable of easily installing a central arc shielding plate in alignment without biasing in a radial direction. The vacuum interrupter includes a protruding guide unit protruding from a stationary electrode seal cup in a perpendicular direction to guide the installation of the central arc shielding plate such that the central arc shielding plate can be aligned in a radial direction.