Removable Current Breaking Element With Inspection Windows
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Solution Overview
Problem
Existing removable electrical cut-off elements in electrical devices face issues with accidental welding of moving conductors to fixed conductors, making it difficult to unsolder and replace them, leading to costly and time-consuming maintenance operations.
Innovation Solution
A removable electrical cut-off element with through windows allowing visual inspection and tool insertion for unsoldering, enabling direct maintenance without opening the housing, and incorporating features like oblong windows and symmetrical half-shells for easy insertion and desoldering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the housing is sealed and closed, then protection and safety are improved, but accessibility for maintenance and inspection deteriorates
Solution Approach 1:
The housing is segmented by introducing through-windows that divide the closed structure into observable sections, allowing inspection and maintenance access without compromising the overall sealed protection of the housing
2Reliability
If conductors are securely connected, then electrical reliability is improved, but ease of repair deteriorates
Solution Approach 1:
The essential function of conductor connection and inspection is extracted through the through-windows, which provide access to the contact zones for unsoldering and visual inspection without requiring complete disassembly of the housing
Solution Approach 2:
The through-windows act as intermediaries that facilitate maintenance operations by providing a pathway for tools and visual inspection between the exterior and the internal conductor connections
3Ease of operation
If the housing is opened for maintenance, then accessibility is improved, but operational time is increased
Solution Approach 1:
The housing is segmented with through-windows that allow localized access to specific contact zones, enabling maintenance operations without opening the entire housing and thus minimizing operational downtime
Data Source
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AI summary
This removable current-interrupting element (6) for an electrical switching device comprises: - a housing (20); - first and second fixed electrical conductors (22, 24); - a movable electrical conductor (30) that can be positioned between: • a first position, in which the movable electrical conductor electrically connects the first and second fixed electrical conductors, and • a second position, in which the movable electrical conductor is electrically isolated from the first and second fixed electrical conductors. The housing has two through-windows (50, 52), one located opposite a contact area between the movable conductor and the first fixed electrical conductor, and the other located opposite a contact area between the movable conductor and the second fixed electrical conductor.