Dashboard Cable Protector with Segmented Stress Relief
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Solution Overview
Problem
Existing vehicle protection systems are inadequate for protecting cables or pipes that extend in an upper-lower direction along the dashboard during a vehicle collision, as they cannot effectively prevent detachment and breakage.
Innovation Solution
A vehicle protection system featuring a first protector with a concave sectional shape, including a bent portion, an upper extension portion with a bolt insertion hole for fixation, and a lower extension portion with a slit for secure attachment to the dashboard, which absorbs impact and prevents detachment by relieving stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a protection member is used to protect a cable or pipe extending in an upper-lower direction along the dashboard, then the protection target can be protected from direct impact, but the protection member may detach or break during vehicle collision due to stress concentration
Solution Approach 1:
The protection member is divided into multiple sections: an upper extension portion, a bent portion, and a lower extension portion. Each section can deform independently during collision, distributing stress throughout the structure rather than concentrating it at a single point, thereby preventing breakage while maintaining protection effectiveness
Solution Approach 2:
The protection member is designed with flexible connection portions that allow dynamic deformation during collision. The bent portion and extension portions can move relative to each other, enabling the structure to adapt to impact forces and relieve stress through controlled movement rather than rigid resistance
2Stability of the object's composition
If the protection member is rigidly fixed to the dashboard, then detachment is prevented, but stress concentration occurs during collision causing breakage
Solution Approach 1:
Different portions of the protection member have different fixation characteristics. The upper extension portion includes a first fixing portion for secure attachment, while the lower extension portion includes a second fixing portion with different characteristics. This local differentiation allows stable fixation overall while permitting controlled movement at specific locations to relieve stress
3Strength
If the protection member is designed to be detachable during collision, then stress is relieved, but the protection target may become exposed
Solution Approach 1:
The bent portion is positioned within or adjacent to the dashboard structure, creating a nested arrangement. During collision, the bent portion can deform and move relative to the dashboard while remaining constrained by the surrounding structure, allowing stress relief without complete detachment that would expose the protection target
Data Source
AI summary
A vehicle includes a vehicle interior, a front room provided in front of the vehicle interior with a dashboard interposed therebetween, a first protection target that is disposed along the dashboard and extends in an upper-lower direction, and a first protector that has a concave sectional shape and covers the first protection target toward the dashboard. The first protection target includes a curved portion curved along a curvature of the dashboard, and the first protector includes a bent portion that covers the curved portion, an upper extension portion that extends upward from the bent portion, and a lower extension portion that extends downward from the bent portion. The upper extension portion includes a first fixing portion that has a bolt insertion hole and is fixed to the dashboard, and the lower extension portion includes a second fixing portion that has a slit opened downward and is fixed to the dashboard.