Sheet-Based Wiring Member for Low-Stress Bending at Intersections
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Solution Overview
Problem
Existing wire harnesses experience strong force during bending, which can lead to damage, particularly during transportation and installation.
Innovation Solution
A wiring member design that includes a sheet with wire-like transmission members fixed to it, featuring intersection regions where the members intersect and are bent, diffusing force through beading or folding to reduce stress on the wires.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the wire harness is bent during transportation, then the wiring member can be transported and installed, but strong force is applied to the wire-like transmission members causing potential damage
Solution Approach 1:
The wire-like transmission members are segmented into multiple strands within a cable structure, allowing the bending force to be distributed across multiple individual wires rather than concentrated on a single wire, thereby reducing the stress on each strand during bending operations
Solution Approach 2:
The cable is designed with specific local characteristics including a bent shape configuration and multi-strand construction in regions susceptible to bending forces, providing enhanced flexibility and force distribution exactly where bending occurs during transportation and installation
2Device complexity
If the wire-like transmission members are arranged in parallel, then the wiring member has a simple structure, but strong force is concentrated on individual wires during bending
Solution Approach 1:
The wiring structure transitions from simple parallel wire arrangement to a segmented cable construction with multiple strands, where each strand contains multiple wire-like transmission members. This segmentation distributes the bending force across numerous individual wires, preventing force concentration while maintaining structural organization
Solution Approach 2:
The wiring member employs a composite cable structure combining multiple wire-like transmission members with different materials and properties (copper conductors, insulation layers, protective jackets) arranged in a multi-strand configuration, creating a unified structure that distributes mechanical stresses while maintaining electrical functionality
Data Source
AI summary
A wiring member includes: a plurality of wire-like transmission members; and a sheet to which the plurality of wire-like transmission members are fixed, wherein an intersection region portion where the plurality of wire-like transmission members are disposed on the sheet to intersect with each other is provided, and the intersection region portion includes a bending position.