Fuse Switch Disconnector Flexible Cable Outlet
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Solution Overview
Problem
Conventional fuse switch disconnectors face challenges in optimizing cable outlet arrangement in cramped switchgear installations, requiring complex and time-consuming rotations or repositioning of multiple components, which increases labor and risks errors like misplaced hooks.
Innovation Solution
A fuse switch disconnector design featuring a lower part with hooks that can be locked in multiple positions on an upper part using integral hook-shaped clamping elements and holding devices, allowing for easy repositioning without additional components and minimizing assembly time, with a symmetrical upper part for consistent attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the cable outlet is repositioned by rotating the lower part 180° and reassembling multiple components, then the cable outlet arrangement flexibility is improved, but the assembly time and labor increase
Solution Approach 1:
The patent combines multiple individual components (lower part, hooks, clamping elements) into a single integrated lower part assembly. The hooks are firmly aligned in one direction and integrated into the lower part, eliminating the need to rotate and reassemble multiple separate components. This merging allows the entire assembly to be repositioned as one unit, significantly reducing assembly time while maintaining flexibility.
Solution Approach 2:
The lower part is designed with universal repositioning capability through integrated hook-shaped clamping elements that can engage with holding devices in multiple positions. The symmetrical upper part with holding devices allows the lower part to be locked in several different positions without requiring different component configurations, enabling versatile cable outlet arrangement with a single standardized assembly.
2Adaptability or versatility
If multiple individual components are used for repositioning, then the adaptability is improved, but the risk of component loss increases
Solution Approach 1:
The patent merges the hooks and clamping elements into the lower part as integral components. The hooks are firmly aligned in one direction and form part of the lower part structure, eliminating the risk of individual components being lost during disassembly and reassembly. The integrated design ensures all necessary elements remain with the main assembly.
3Stability of the object's composition
If the lower part is screwed to the upper part for repositioning, then the connection stability is improved, but the assembly complexity increases
Solution Approach 1:
The patent extracts the fastening function from complex screw connections and replaces it with simple hook-shaped clamping elements that engage with holding devices. The clamping elements provide stable connection through their geometric shape and engagement mechanism, eliminating the need for screws, nuts, and threading operations, thus reducing assembly complexity while maintaining connection stability.
4Strength
If individual screw elements are used for connection, then the connection strength is improved, but the risk of component loss during disassembly increases
Solution Approach 1:
The patent combines the connection elements (hooks and clamping elements) into the lower part structure, ensuring they cannot be lost during disassembly. The hook-shaped clamping elements are integral to the lower part, so when the lower part is removed from the upper part, all connection elements remain attached to the lower part assembly, eliminating the risk of losing small screw elements.
Data Source
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AI summary
The load disconnecting protection switch has a cable outlet on one side, and a lower part (20), on which hooks (21) are arranged aligned in a direction for partially surrounding the bus bars. The lower part and an upper part (10) are so arranged that the lower part is locked on the hooks in multiple different positions in relation to the upper part. The locking of the lower part on the upper part takes place by sliding of hook-shaped clamping element (22) fixed on the lower part on the holding devices integrated in the upper part.