Integrated Deflection Member for Contactor Arc Extinguishing
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Solution Overview
Problem
Existing contactor breaking modules face challenges in effectively guiding and extinguishing arcs between moving and static contacts, leading to arc stagnation and suboptimal performance.
Innovation Solution
A deflection member is introduced, featuring a first and second arc striking portion extending in a first direction, a base portion extending perpendicular to these, and connecting portions to guide arcs from moving contacts to adjacent arc extinguishing chambers, reducing arc stagnation and improving extinguishing performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a guiding device is added to guide arcs from moving contacts to arc extinguishing chambers, then arc extinguishing performance is improved, but device complexity increases
Solution Approach 1:
The patent combines the arc guiding function and arc deflecting function into a single integrated deflection member. This member includes a first deflection portion for guiding arcs from the first moving contact to the first arc extinguishing chamber, and a second deflection portion for guiding arcs from the second moving contact to the second arc extinguishing chamber. By merging multiple functions into one component, the patent improves arc extinguishing performance while avoiding the need for separate guiding devices that would increase device complexity.
Solution Approach 2:
The deflection member serves multiple functions simultaneously: it acts as both an arc guiding structure and an arc deflecting structure. The first deflection portion guides and deflects arcs from the first moving contact, while the second deflection portion guides and deflects arcs from the second moving contact. This multi-functional design eliminates the need for additional specialized components, thereby improving reliability without proportionally increasing device complexity.
2Reliability
If arc guiding structures are added to direct arcs to extinguishing chambers, then arc stagnation is reduced, but manufacturing complexity increases
Solution Approach 1:
The patent integrates the arc guiding and deflecting functions into a single deflection member, which simplifies the manufacturing process compared to producing separate guiding components and deflecting components. The integrated structure can be manufactured as one piece, reducing assembly steps and manufacturing complexity while still achieving the goal of directing arcs to extinguishing chambers and reducing arc stagnation.
Solution Approach 2:
The deflection member features locally optimized structures: the first deflection portion is specifically configured to guide arcs from the first moving contact to the first arc extinguishing chamber, while the second deflection portion is configured for the second moving contact and second arc extinguishing chamber. This localized functional differentiation allows each part of the member to perform its specific arc-guiding function effectively without requiring complex overall design, thereby improving arc stagnation reduction while maintaining ease of manufacture.
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 deflection member effectively guides arcs to arc extinguishing chambers, reducing stagnation and enhancing arc extinguishing performance, while also protecting moving contacts from pollution and erosion.
Implementation Method 1
the first arc striking portion is arranged between the first moving contact and the first arc extinguishing chamber to guide the arc from the first moving contact to the first arc extinguishing chamber, and the second arc striking portion is arranged between the second moving contact and the second arc extinguishing chamber to guide the arc from the second moving contact to the second arc extinguishing chamber
Data Source
AI summary
Disclosed is a deflection member, including a first arc striking portion and a second arc striking portion extending in a first direction and are parallel to each other; a base portion extending in a second direction perpendicular to the first direction and disposed in a biased manner between the first arc striking portion and the second arc striking portion in the second direction; a first connecting portion connecting the base portion and the first arc striking portion; and a second connecting portion connecting the base portion and the second arc striking portion, wherein the first arc striking portion is provided between a first moving contact and a first arc extinguishing chamber the second arc striking portion is provided between a second moving contact and a second arc extinguishing chamber. According to the deflection member of the present invention, electric arc stagnation is reduced, and the arc extinguishing performance is improved.