Spare Fuse Resin Guide Structure for Inclined Insertion
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Solution Overview
Problem
Conventional spare-fuse holding structures risk damaging terminals or resin housing chambers when a spare fuse is inserted inclined, due to terminal contact with resin walls.
Innovation Solution
A spare-fuse holding structure with a resin guide portion that includes an insertion-opening-side guide portion, a guide wall with an inclined surface, and an insertion completion positioning portion, which guides the spare fuse into the resin housing chamber while preventing terminal contact with resin walls, ensuring the spare fuse is properly aligned and housed without applying excessive stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the spare fuse is inserted inclined with respect to the insertion direction into the resin housing chamber, then the insertion operation becomes easier to perform, but the terminals come into contact with resin walls forming the resin housing chamber while applying excessive stress thereto, which may damage the terminals or the resin housing chamber
Solution Approach 1:
The guide portion is provided in advance in the resin housing chamber to preliminarily guide the fuse resin main body during insertion. This preliminary guiding action ensures that even when the spare fuse is inserted at an angle, the fuse resin main body is gradually aligned and guided into the correct position, preventing terminal contact with resin walls and avoiding damage to both terminals and housing chamber.
2Speed
If the spare fuse is inserted inclined with respect to the insertion direction, then the insertion speed may be increased, but excessive stress is applied to the terminals and resin housing chamber causing potential damage
Solution Approach 1:
The guide portion acts as an intermediary element between the fuse resin main body and the resin housing chamber. When the spare fuse is inserted at an angle, the guide portion mediates the interaction by providing a guiding surface that gradually redirects the fuse resin main body into the correct position, preventing direct contact between terminals and resin walls, thus protecting both from excessive stress while maintaining insertion speed.
Data Source
AI summary
A spare-fuse holding structure holds a spare fuse including a pair of terminals exposed on both sides of a fuse resin main body serving as a resin main part of the spare fuse in a resin housing chamber. The spare-fuse holding structure includes a resin guide portion configured to guide, when the spare fuse is inserted into the resin housing chamber in a manner inclined with respect to the insertion direction, the spare fuse into the resin housing chamber while changing a posture of the spare fuse in the insertion direction by coming into contact with the fuse resin main body to prevent the pair of terminals from coming into contact with resin walls forming the resin housing chamber.