Vehicle Fuse Box Nesting Holding Member Inside Case Notch
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Solution Overview
Problem
The increasing number of electronic devices in vehicles requires a higher number of fuses in electrical connection boxes, but existing designs face challenges in accommodating more fuses without increasing the size of the box.
Innovation Solution
The electrical connection box incorporates a plate-shaped holding member opposing the insertion housing and a case member with a notch, allowing for efficient arrangement of fuse terminals and lid member engagement, which maximizes the number of fuses without enlarging the box dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the number of fuse fitting portions is increased to accommodate more electronic devices, then the number of fuses that can be inserted increases, but the size of the electrical connection box increases
Solution Approach 1:
The patent applies nesting by placing the holding member that supports fuse terminals inside the notches of the case member. This nested arrangement allows the fuse terminals to be positioned within the existing box structure rather than requiring additional external space, enabling more fuses to be accommodated without increasing the overall box volume.
Solution Approach 2:
The patent utilizes the depth dimension of the box by arranging fuse fitting portions on multiple surfaces including the front surface, rear surface, and side surfaces. This three-dimensional distribution of fuse terminals across different surfaces and depths maximizes the use of internal space, allowing increased fuse capacity without expanding the box's external footprint.
2Adaptability or versatility
If multiple types of fuse fitting portions are included in one box body, then various types of fuses can be accommodated, but the complexity of the box structure increases
Solution Approach 1:
The patent segments the fuse terminal arrangement by providing different holding member configurations for different fuse types. Each fuse type (miniature fuse, blade fuse, etc.) has its dedicated fitting portion with appropriate terminal structure, allowing versatile fuse compatibility while maintaining clear structural separation that simplifies the overall design and assembly process.
Data Source
AI summary
Provided is an electrical connection box into which a greater number of fuses can be inserted without increasing its size. An electrical connection box for a vehicle includes: an insertion housing into which multiple fuses are to be inserted through an open port on one side; multiple fuse terminals for connecting the fuses in the insertion housing to a substrate; a plate-shaped holding member that opposes the insertion housing from a side opposite to the one side of the insertion housing, and holds the multiple fuse terminals; and a case member that includes a flat plate portion for covering the multiple fuse terminals and has a notch that is formed in the covering portion, the holding member being arranged inside of the notch.