Motor Vehicle Cable Duct with Segmented Exit Apertures
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Solution Overview
Problem
The existing motor vehicle systems experience noise issues due to the interface of cable ducts with sheet metal apertures, leading to rattling or clattering noises during operation, primarily caused by closely compressed cables and sharp aperture edges.
Innovation Solution
A single-component cable duct with separate exit apertures for each cable, designed to prevent contact between cables upon exit, manufactured from noise-absorbent materials like rubber or elastomers, and featuring a cover that adapts to cable movements to reduce noise and provide effective sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a single-component cable duct with separate exit apertures is used, then noise evolution is reduced and cable protection is improved, but device complexity increases
Solution Approach 1:
The cable duct is divided into separate exit apertures for different cables, preventing cable contact and noise generation at the exit points. This segmentation of the exit structure resolves the noise issue while maintaining a single-component overall design.
Solution Approach 2:
Multiple cables are conducted through a single cable duct component, with each cable having its own exit aperture. This nesting approach allows multiple functions within a single component, reducing the number of separate ducts needed while preventing cable contact.
2Device complexity
If cables are closely compressed through a single aperture, then device complexity is reduced, but harmful factors increase due to cable contact and noise
Solution Approach 1:
Instead of using a single shared aperture where cables would contact each other, the design segments the exit into separate apertures for each cable. This eliminates cable-to-cable contact and the associated noise while keeping the overall duct as a single component.
3Manufacturing precision
If rigid cable ducts with sharp aperture edges are used, then manufacturing precision is improved, but harmful factors increase due to cable damage risk
Solution Approach 1:
The aperture edges are designed with rounded or chamfered transitions instead of sharp edges, changing the geometric parameters of the aperture structure. This modification eliminates the cable damage risk while maintaining manufacturing feasibility within standard tolerances.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution significantly reduces noise evolution and enhances cable protection by minimizing cable contact and interface points, while allowing flexible adaptation to cable movements and vibrations, ensuring effective sealing and easy installation.
Implementation Method 1
manufactured from noise-absorbent materials like rubber or elastomers
Implementation Method 2
manufactured from noise-absorbent materials like rubber or elastomers, featuring a cover that adapts to cable movements
Data Source
AI summary
The invention relates to a motor vehicle system, in particular a motor vehicle latching system encompassing a locking mechanism with a catch and a pawl, where the motor vehicle system encompasses a cable duct 1 for the conducting of a cable 4, 5 through a sheet metal aperture, whereby the cable duct 1 is formed of a single component and has a first exit aperture 2 for a first cable 4 and a second exit aperture 3 for a second cable 5, which are designed in such a way that the first cable 4 and the second cable 5 cannot come into contact with one another when exiting the cable duct 1. Undesired noise formation can thus be counteracted in an improved manner.