Shared Fuse Mounting Layout for Multi-Size Electrical Connection Boxes
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Solution Overview
Problem
Conventional electrical connection boxes require dedicated designs for different fusible link sizes, leading to non-versatility and high costs.
Innovation Solution
An electrical connection box with a shared fuse mounting portion that accommodates both large and small fuses, featuring separate fixing portions for each terminal, allowing interchangeable mounting of fuses of different sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If dedicated electrical connection boxes are designed for each fusible link size, then the connection box can properly accommodate the specific fuse size, but the device complexity and cost increase due to multiple dedicated designs
Solution Approach 1:
The connection box is designed with a universal mounting structure that can accommodate both large and small fuses using the same housing and mounting portions. The mounting structure includes a mounting portion with a recess that can hold fuses of different sizes, eliminating the need for dedicated connection boxes for each fuse size.
Solution Approach 2:
The mounting structure incorporates adjustable elements within the recess area that can be positioned to match different fuse dimensions. This allows the same mounting portion to provide appropriate local accommodation for both large and small fuses through localized adjustments rather than requiring entirely different mounting structures.
2Adaptability or versatility
If dedicated electrical connection boxes are designed for each fusible link size, then the connection box can properly accommodate the specific fuse size, but the manufacturing cost increases
Solution Approach 1:
The connection box employs a universal mounting structure that serves multiple fuse size requirements with a single design. This eliminates the need to manufacture multiple dedicated connection box variants, thereby reducing tooling costs, assembly line complexity, and inventory management expenses associated with producing and stocking different sized connection boxes.
3Adaptability or versatility
If a shared fuse mounting portion accommodates both large and small fuses, then the adaptability improves, but the mounting structure complexity increases
Solution Approach 1:
The mounting structure uses a recess with adjustable positioning elements that can be configured for different fuse sizes. The recess provides a base structure that accommodates both large and small fuses, with localized adjustments made only where needed to match the specific fuse dimensions, keeping the overall structure simple while providing adaptability.
Data Source
AI summary
An electrical connection box includes a housing and a busbar attached to the housing. The housing includes a shared fuse mounting portion on which at least two fuses including large and small fuses of mutually different sizes are to be mounted. The fuse mounting portion includes: a large input-side fixing portion to which a large input terminal of the large fuse is to be fixed; a large output-side fixing portion to which a large output terminal of the large fuse is to be fixed; a small input-side fixing portion to which a small input terminal of the small fuse is to be fixed; and a small output-side fixing portion to which a small output terminal of the small fuse is to be fixed. The small input-side fixing portion and the small output-side fixing portion are arranged between the large input-side fixing portion and the large output-side fixing portion.