Vehicle Wire Harness Layout With Adjustable Path Restrictors
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Solution Overview
Problem
Existing wire harnesses for vehicles lack adjustable positioning of straight and bend restricting parts, which complicates assembly and affects the durability and layout flexibility of the harness.
Innovation Solution
A wire harness design featuring adjustable straight restricting parts relative to bend restricting parts, utilizing a connector with an annular shape that engages with both types of restrictors, allowing for alignment and secure attachment, thereby enhancing assembly workability and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the position of straight restricting part and bend restricting part is fixed relative to each other, then the structure is simple, but the layout flexibility and adaptability to different vehicle configurations is poor
Solution Approach 1:
The path restricting member is divided into multiple independent path restrictors (first path restrictor for straight parts, second path restrictor for bent parts) that can be positioned independently along the exterior tube. Each restrictor functions as a separate module that can be adjusted to different positions, enabling flexible adaptation to various wire harness layouts while maintaining a relatively simple overall structure.
Solution Approach 2:
The position of each path restrictor along the exterior tube is made adjustable rather than fixed. The first path restrictor can be positioned at different locations to restrict straight portions of the wire harness, while the second path restrictor can be positioned to restrict bent portions. This dynamic positioning capability allows the same basic structure to adapt to different vehicle configurations and wire routing requirements.
2Ease of operation
If the path restricting member is designed as a single integrated component, then the manufacturing is simple, but the adjustability of restricting part positions is limited
Solution Approach 1:
The path restricting member is segmented into multiple independent path restrictors that can be attached at different positions along the exterior tube. This segmentation allows each restrictor to be optimized for its specific function (straight or bent wire restriction) while enabling flexible positioning to match actual wire harness routing requirements, improving both assembly workability and position adjustability.
Solution Approach 2:
The exterior tube serves as an intermediary element that connects and positions multiple path restrictors along its length. The restrictors attach to the exterior tube at different locations, allowing them to be positioned independently while maintaining proper spacing and alignment. This intermediary structure enables easy assembly and repositioning without requiring complex integrated designs.
3Reliability
If multiple path restrictors are attached to the exterior tube, then the path restriction effectiveness is improved, but the number of components and assembly complexity increases
Solution Approach 1:
The path restricting function is segmented into multiple specialized restrictors (first for straight wires, second for bent wires) attached to the exterior tube. This segmentation improves path restriction effectiveness by providing dedicated restriction points for different wire configurations, while the modular nature of the segments keeps individual components simple and the overall system manageable.
Solution Approach 2:
Multiple path restrictors are designed with similar attachment mechanisms to the exterior tube, creating a universal mounting system. Each restrictor serves a specific function (straight or bent wire restriction) but uses the same basic attachment principle, reducing the need for different types of fasteners or mounting methods and thereby limiting the increase in assembly complexity despite having multiple components.
Data Source
AI summary
A wire harness to be attached to a vehicle body, the wire harness including: a wire harness main body having an electrical wire and an exterior tube covering the electrical wire; a first path restrictor attached to an outer periphery of the exterior tube and restricting a path of a straight part which is a portion of a path of the wire harness main body that is straight; a second path restrictor attached to the outer periphery of the exterior tube and restricting a path of a bent part which is a portion of the path of the wire harness main body that bends; and a connector having an annular shape surrounding the outer periphery of the exterior tube and an outer periphery of the second path restrictor, and connecting the exterior tube and the second path restrictor to each other.