Wiring Member Layout Using Connector Back Space to Limit Harness Thickness
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Solution Overview
Problem
The existing wire harness designs face an increase in thickness and arrangement space when electrical wires intersect on a sheet-like functional exterior member, leading to potential space inefficiencies, particularly in vehicle installations.
Innovation Solution
A wiring member design where the intersection points of wire-like transmission members are positioned in a backward region relative to the connector's end surface, allowing for reduced intersection positions away from this area, with options for separate connectors and sheet members to minimize thickness and space usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electrical wires are disposed to intersect on the sheet-like functional exterior member, then the wiring arrangement can accommodate connection destinations and routes, but the thickness of the wire harness increases in that portion
Solution Approach 1:
The patent relocates wire intersections from the two-dimensional sheet-like functional exterior member surface to the three-dimensional backward region space behind the connector end surface. This dimensional transition allows intersections to occur in depth rather than on the surface, maintaining thin profile while preserving routing flexibility.
Solution Approach 2:
Instead of having wires intersect on the front surface of the functional exterior member as in conventional designs, the patent inverts the intersection location to the backward region behind the connector. This inversion moves the problematic intersection points away from the thickness-critical area.
2Adaptability or versatility
If wires are arranged to reach connection destinations, then functional connectivity is achieved, but the arrangement space for the wire harness increases
Solution Approach 1:
The patent utilizes the backward region behind the connector as an additional spatial dimension for wire arrangement. By allowing wires to extend into this previously underutilized space, the functional exterior member can maintain a smaller footprint while still achieving all necessary connections.
Solution Approach 2:
The wire intersections are nested within the backward region of the connector assembly, utilizing the existing connector structure as a container for the intersection points. This nesting approach consolidates the wiring arrangement into a more compact overall package.
Data Source
AI summary
A wiring member includes: a connector; a plurality of wire-like transmission members extending from the connector; and a sheet member in which the plurality of wire-like transmission members extending from the connector are disposed and fixed on a main surface in a state where an arrangement of the plurality of wire-like transmission members is changed to be different from an arrangement in an end surface of the connector. At least one intersection position in which the plurality of wire-like transmission members intersect with each other for changing the arrangement of the plurality of wire-like transmission members is located in a backward region of the end surface of the connector.