Vehicle Junction Box Window for Visual Inspection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electrical junction boxes in vehicles make it difficult to check the connection state of the connector terminal and substrate after integration, as the connection state is not easily visible from the opposite side, leading to potential detection issues of poor connections.
Innovation Solution
An electrical junction box design that includes a window hole in the side wall of the box body, allowing for visual inspection of the connector terminal's connection to the substrate, and a cover mechanism to prevent foreign bodies from entering when the cases are fitted together, with the connector terminal and upper case formed as a single body through insert molding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the connector terminal and upper case are integrated through insert molding, then the manufacturing precision and structural integrity are improved, but the ease of checking connection state deteriorates
Solution Approach 1:
The side wall of the upper case is segmented by forming a window hole that exposes a portion of the connector terminal. This segmentation allows the inspection function to be separated from the enclosing structure, enabling visual checking of the connection state between the connector terminal and substrate while maintaining the integrated molding structure.
Solution Approach 2:
The window hole acts as an intermediary element that provides a viewing pathway from the exterior to the interior connection point. It mediates between the need for structural integration and the need for inspection accessibility, allowing light and visual access without compromising the sealed or integrated nature of the housing.
2Ease of operation
If the window hole is formed in the side wall for visual inspection, then the ease of checking connection state is improved, but the protection against foreign body entry deteriorates
Solution Approach 1:
A transparent or translucent cover is placed over the window hole, forming a thin film barrier that allows visual inspection while preventing foreign bodies from entering through the opening. The cover maintains the protective function of the housing while enabling the inspection function.
Solution Approach 2:
The cover creates a duplicate surface that replaces the solid wall in the window region, providing the same protective function while allowing light transmission. It copies the wall's protective role while adding optical transparency.
Data Source
AI summary
Provided is an electrical junction box that enables easily checking the connection state of a connector terminal and a substrate. The electrical junction box includes: a box body; a substrate that is fitted to an inner portion of the box body; a connector terminal that passes through a side wall of the box body and is held thereby, and includes an inward end portion that is connected to the substrate; and a window hole that is formed in the side wall and enables visually checking a portion where the connector terminal is connected to the substrate.