Rotatable Connector Wire Harness Routing Adaptability
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Solution Overview
Problem
The increasing diversity of vehicle types and customer preferences leads to a significant increase in the number of types of sub-harnesses required for wire harnesses, making standardization challenging, especially with the need to absorb excess electric wire length without altering the wire length.
Innovation Solution
A wire harness design featuring a connector holder, connector, and electric wire configuration that allows the attachment position to be changed according to the routing direction, enabling the electric wire to be routed and absorbed without changing its length, using various attachment types and engagement portions to accommodate different routing scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the length of electric wire is made relatively long to cope with various routing, then the wire harness can be standardized, but excess length cannot be absorbed without changing wire length
Solution Approach 1:
The connector is designed with a rotatable structure that allows it to change its orientation dynamically. The connector body can rotate around the electric wire axis, enabling the wire harness to adapt to different routing directions without requiring multiple fixed-length wires. This dynamic adjustment absorbs excess wire length while maintaining standardized wire lengths.
Solution Approach 2:
The invention changes the orientation parameter of the connector by allowing rotation around the wire axis. This parameter change enables the same standardized wire length to serve multiple routing configurations, effectively absorbing excess length variations through angular adjustment rather than length modification.
2Adaptability or versatility
If the number of sub-harness types is increased to meet diverse vehicle requirements, then customer preferences can be satisfied, but standardization becomes difficult
Solution Approach 1:
The connector is designed as a universal component that can serve multiple functions and configurations. By enabling rotation and reorientation, a single standardized sub-harness type can be used across different vehicle configurations and routing requirements, eliminating the need for multiple specialized sub-harness types while still satisfying diverse customer preferences.
Solution Approach 2:
The dynamic rotatable connector allows a single sub-harness design to adapt to various vehicle configurations through orientation changes rather than requiring multiple static designs. This reduces the number of sub-harness types needed while maintaining versatility for different vehicle grades and optional equipment.
3Adaptability or versatility
If branches are provided in both standard sub-harness and optional sub-harness, then circuit requirements can be met, but the shape of sub-harness becomes complex
Solution Approach 1:
The invention extracts the branching function from the sub-harness structure itself and relocates it to the connector level. By providing rotation and reorientation capabilities at the connector, the need for complex branched sub-harness structures is eliminated, simplifying the overall sub-harness shape while maintaining circuit configuration flexibility.
Data Source
AI summary
A wire harness is provided. The wire harness includes a connector holder, a connector held in the connector holder, and an electric wire extending from the connector toward a predetermined routing direction. The electric wire is to be held at a predetermined attachment position on an outer wall surface of the connector such that the electric wire extends toward the routing direction passing through the attachment position. The attachment position is configured to be changeable to a plurality of different positions according to the routing direction.