Vehicle Junction Box Horizontal Clip Stability
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Solution Overview
Problem
Conventional electrical junction boxes for vehicles are prone to clip detachment when an unexpected external force is applied due to the unstable vertical standing posture of the clip connecting the booster cable to the rescue terminal.
Innovation Solution
The electrical junction box design incorporates a space near the rescue terminal to allow the clip to be connected in a horizontal lying posture, with a supporting portion underneath to stabilize the clip, which can be the top surface of the box body or electronic components, and includes a metallic plate and rod configuration for enhanced stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the clip is connected in a vertical standing posture to the rescue terminal, then the connection can be established, but the connection becomes unstable and prone to detachment when external force is applied
Solution Approach 1:
The patent inverts the conventional vertical standing posture of the clip to a horizontal lying posture. The rescue terminal is designed with a protruding structure that extends horizontally from the box body, allowing the clip to lie horizontally rather than stand vertically. This inversion fundamentally changes the stability characteristics, making the clip resistant to detachment forces that would affect a vertical posture.
Solution Approach 2:
The patent transitions the clip connection from a one-dimensional vertical arrangement to a two-dimensional horizontal configuration. The rescue terminal protrudes horizontally from the box body top surface, creating a spatial arrangement where the clip lies in a different dimensional orientation. This dimensional change provides inherent stability against vertical detachment forces while maintaining electrical connectivity.
2Reliability
If a supporting portion is added to stabilize the horizontal clip, then detachment resistance improves, but device complexity increases
Solution Approach 1:
The patent merges the supporting portion with existing components of the electrical junction box. The top surface of the box body or the top surfaces of electronic components mounted on the box body serve as the supporting portion for the horizontal clip. This integration eliminates the need for separate supporting structures, maintaining simplicity while providing the necessary stability for horizontal clip placement.
Solution Approach 2:
The existing box body top surface and electronic component surfaces are given a dual function: they continue to serve as mounting surfaces for electrical components while simultaneously acting as supporting portions for the horizontal clip. This multi-functionality reduces the need for additional specialized components, keeping the device complexity low while achieving reliable clip stabilization.
Data Source
AI summary
An electrical junction box includes a rescue terminal, protruding from a top surface of a box body, and a terminal supporting plate, attached to the rescue terminal. The rescue terminal has a space in its proximity to allow a clip of a booster cable to be connected to the rescue terminal with the clip in a horizontal lying posture. The rescue terminal is also provided with a supporting portion that is to be located under the clip to support the clip. A plurality of relays attached to the box body have top surfaces that constitute the supporting portion. To connect the clip to the rescue terminal, the clip in a horizontal lying posture is brought close to the rescue terminal so as to clamp the rescue terminal and the terminal supporting plate on their sides, with the clip placed on the top surfaces of the relays constituting the supporting portion.