Vehicle Door Wire Routing Assembly with Installation Feedback

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Solution Overview

Problem

Existing wire bundle routing assemblies for vehicles lack an indication mechanism to detect improper routing of wires around locking tabs or failed lock engagement during installation, which can lead to installation errors and potential moisture ingress.

Innovation Solution

Incorporating a base slide track detent surface and a cover slide track detent surface that must align properly for the cover to engage the base latch, preventing installation if a wire is trapped, and using a latch system to ensure secure engagement only when alignment is correct.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a cover and latch system is used to enclose the wire bundle, then sealing and protection are improved, but installation errors go undetected

Engineering Contradiction:
Improvesealing reliabilityVSAvoidinstallation error detection
Core Design Contradiction:
ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent implements feedback by making the latch engagement dependent on proper wire routing. The detent surface geometry creates a mechanical feedback loop where correct wire placement is required for the cover to fully engage and lock. If wires are improperly routed, the latch cannot engage, providing immediate feedback to the installer about the installation error.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent applies preliminary anti-action by designing the slide track with detent surfaces that prevent improper installation before completion. The geometric constraint of the detent surfaces creates a pre-condition that must be satisfied (proper wire routing) before the cover can be fully installed, thereby preventing installation errors from occurring in the first place.

Inventive Principle:
Principle #9Preliminary anti-action

2Stability of the object's composition

If locking tabs are used to secure the cover, then enclosure stability is improved, but wire routing errors remain undetected

Engineering Contradiction:
Improveenclosure stabilityVSAvoidwire routing error detection
Core Design Contradiction:
Stability of the object's compositionVSDifficulty of detecting and measuring

Solution Approach 1:

The patent applies preliminary action by incorporating the detection function into the installation process itself. The detent surfaces are designed so that proper wire routing must be achieved before the cover can be installed. This preliminary check ensures that wire routing errors are detected during installation, not after the stable enclosure is formed.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent merges the stability function and detection function into a single integrated mechanism. The latch system that provides enclosure stability also serves as the detection mechanism. The same mechanical engagement that secures the cover also verifies proper wire routing, combining two functions into one unified system.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of manufacture

If a simple cover design is used, then manufacturing complexity is reduced, but installation verification capability is lost

Engineering Contradiction:
Improvecover manufacturing simplicityVSAvoidinstallation correctness verification
Core Design Contradiction:
Ease of manufactureVSDifficulty of detecting and measuring

Solution Approach 1:

The patent segments the cover into functional zones: the main cover body for enclosure, the slide track with detent surfaces for verification, and the latch mechanism for securing. This segmentation allows each component to perform its specific function while maintaining overall manufacturing simplicity. The detent surfaces are integrated into the slide track geometry rather than being separate complex components.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements self-service by designing the cover to automatically verify its own installation correctness. The detent surfaces and latch system work together to self-verify that wires are properly routed before allowing final engagement. This eliminates the need for separate verification tools or complex inspection procedures, maintaining manufacturing simplicity while adding verification capability.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS7423224B2Wire bundle routing assembly and installation method
Publication Date: 2008.09.09 APTIV TECHNOLOGIES LTD
  • US7423224B2 patent drawing
  • US7423224B2 patent drawing
  • US7423224B2 patent drawing

AI summary

A wire bundle routing assembly for routing and at least partially enclosing and sealing a wire bundle between a a vehicle door frame and a vehicle door body. A door mounting base is slidably receivable in a slot formed in a front wall of a door body and includes a wire bundle through-hole. A door mounting base cover at least partially encloses and holds the wire bundle against an inner side of the door mounting base when the cover is installed over the inner side of the door mounting base. A base slide track detent surface on the door mounting base engages a corresponding cover slide track detent surface on the cover and guides the cover as the cover is slid into an installed position on the mounting base.