Door Wiring Module Layout for Single-Position Grommet Attachment
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Solution Overview
Problem
Existing wiring modules with both grommets and planar integrated components attached to door panels require separate positioning, leading to difficulties in attachability.
Innovation Solution
A wiring module design that includes a wiring member connecting a vehicle body and a door panel, a planar member holding the wiring member along the door panel's inner plate, and a grommet attached on the vehicle body side, where the planar member and grommet are attached to each other through specific attachment portions, allowing for improved positioning and attachability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wiring module provided with both a grommet and a planar integrated component is attached to a door panel, then the wiring module can provide both grommet and planar member functions, but the separate positioning requirement reduces attachability
Solution Approach 1:
The patent combines the grommet and planar member into a single integrated wiring module where the planar member includes a main plate portion and a planar member-side attachment portion that connects to the grommet. This merging eliminates the need for separate positioning of two components, improving attachability while maintaining both grommet and planar member functions.
Solution Approach 2:
The planar member is designed with dual functionality: the main plate portion provides planar support and routing, while the planar member-side attachment portion provides connection to the grommet. This multi-functionality allows a single component to replace what would traditionally require separate components, resolving the contradiction between versatility and ease of attachment.
2Adaptability or versatility
If separate positioning of grommet and planar member is required, then each component can be optimized independently, but the positioning complexity increases
Solution Approach 1:
By merging the grommet and planar member into an integrated structure where the planar member includes built-in attachment portions, the patent eliminates the complexity of separately positioning two components. The integration maintains design flexibility while simplifying the assembly process to a single positioning operation.
Data Source
AI summary
One object is to provide a technology that can improve the attachability of a wiring module, in which both a grommet and a planar member are provided on a wiring member, to a door panel. The wiring module includes a wiring member, a planar member that holds the wiring member, and a grommet attached on the vehicle body side relative to the portion of the wiring member held by the planar member. The planar member includes a main plate portion that holds a section of the wiring member that extends along the inner plate portion of the door panel, and a planar member-side attachment portion attached to the grommet. The grommet includes a base portion fixed at a certain position with respect to the door panel and a grommet-side attachment portion to which the planar member-side attachment portion is attached.