Parallel Fuse Arrangement with Structural End Plate
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Solution Overview
Problem
In electrical power distribution installations, individual safety fuses can be accidentally replaced with undamaged or differently sized fuses, leading to potential safety issues and inefficiencies, particularly in space-constrained environments where compact designs are necessary.
Innovation Solution
A fuse arrangement comprising two safety fuses permanently connected via an end plate, forming a structural unit that prevents individual disconnection or replacement without tool assistance, allowing for a compact and flexible parallel connection of multiple fuses to manage current distribution effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If individual safety fuses are used in electrical power distribution installations, then flexibility in replacement and adaptation is improved, but safety risks increase due to accidental replacement or misplacement
Solution Approach 1:
Multiple safety fuses are mechanically coupled together via a common end plate to form a single structural unit. This merging prevents individual fuses from being accidentally removed or replaced, as the entire assembly must be handled together. The structural coupling ensures that fuses are replaced as a group rather than individually, eliminating the risk of misplacement or accidental removal of single fuses.
2Area of stationary object
If multiple safety fuses are connected in parallel to reduce current strength per fuse, then space requirements are reduced, but device complexity increases due to the need for mechanical coupling
Solution Approach 1:
The end plate serves as a common mechanical coupling element that integrates multiple safety fuses into a single compact assembly. By merging the fuses through this shared structure, the overall space footprint is reduced compared to installing multiple separate fuses, while the complexity is managed through a simple, unified mechanical design rather than complex individual mounting mechanisms.
Solution Approach 2:
The end plate performs multiple functions simultaneously: it provides mechanical support for multiple fuses, enables electrical parallel connection through common contact points, and acts as a unified interface for installation and replacement. This multi-functionality reduces the need for separate components, thereby reducing overall device complexity while achieving compact space utilization.
3Reliability
If safety fuses are mechanically coupled via an end plate to prevent individual replacement, then safety is improved, but ease of operation decreases due to tool assistance requirements
Solution Approach 1:
By coupling multiple fuses into a single structural unit via the end plate, the system improves safety through unified handling. The trade-off in ease of operation is accepted as a necessary measure to prevent accidental replacement, but the design minimizes this impact by creating a manageable assembly that can be replaced as a unit with appropriate tools.
Data Source
AI summary
A fuse arrangement includes a first safety fuse and a second safety fuse connected electrically in parallel with each other. The fuse arrangement also includes an end plate mechanically coupled to the first and second safety fuses to form a structural unit so that both safety fuses must be inserted/removed to/from an electrical power distribution installation at the same time. Furthermore, the electrical parallel connection of the two safety fuses, rather than a single relatively larger safety fuse, may allow the maximum current strength of an electrical power distribution installation to be maintained while the current is split between the two safety fuses so the size of the fuse arrangement may be reduced.