Wire Harness Holding Member for Bent Shape Retention

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Solution Overview

Problem

Existing wire harnesses face challenges in retaining a bent shape, which complicates routing operations, especially in vehicles where precise path management is crucial.

Innovation Solution

A wire harness comprising a twisted cable with a holding member that covers and retains the bent portion, ensuring the shape is maintained without external force, and includes a grommet or fixing member for secure attachment to a vehicle component, reducing strain on the wires and preventing moisture ingress.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the wire harness is routed along a bent path, then the routing operation is facilitated, but the wire harness cannot retain its bent shape without external support

Engineering Contradiction:
Improverouting operationVSAvoidbent shape retention
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

A holding member is introduced as an intermediary component between the cable and the routing path. This holding member has a predetermined bent shape that matches the desired routing path, and it supports the cable to maintain the bent shape without requiring external forces or continuous adjustment during operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the holding member is added to retain the bent shape, then the routing operation is facilitated, but the device complexity increases

Engineering Contradiction:
Improverouting operationVSAvoidstructure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The holding member is integrated with the cable assembly such that it forms a unified structure. The holding member is positioned to cover the bent portion of the cable, and its shape is predetermined to match the desired routing path, combining the support function with the cable itself rather than requiring separate external support structures.

Inventive Principle:
Principle #5Merging (Combining)

3Stability of the object's composition

If the twisted wire is in contact with the holding member at the bent portion, then the bent shape is retained, but the wire may be subjected to strain

Engineering Contradiction:
Improvebent shape retentionVSAvoidwire strain resistance
Core Design Contradiction:
Stability of the object's compositionVSStrength

Solution Approach 1:

The holding member is designed to cover only the bent portion of the cable where shape retention is needed, rather than the entire length. This localized approach provides support exactly where required while minimizing contact with the twisted wires, thereby reducing strain on the wires while maintaining the bent shape at the critical curved section.

Inventive Principle:
Principle #3Local quality

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Facilitates easier routing operations by maintaining the bent shape of the wire harness, reducing strain on the wires, and providing a secure attachment mechanism that prevents damage and moisture ingress, thereby enhancing the durability and usability of the wire harness.

Implementation Method 1

The holding member covers a range of the cable including the bent portion, and retains a shape of the bent portion

Methodology Applied
Scientific EffectPhysical support:

Implementation Method 2

wire harness with insulated twisted wire and welded holding member

Methodology Applied
Scientific EffectWelding: Welding

Data Source

PatentUS11476014B2Wire harness with insulated twisted wire and welded holding member
Publication Date: 2022.10.18 PROTERIAL LTD
  • US11476014B2 patent drawing
  • US11476014B2 patent drawing
  • US11476014B2 patent drawing

AI summary

A wire harness includes a cable and a holding member. The cable includes a twisted wire, and an insulation coating that coats the twisted wire. The cable has a bent portion. The holding member covers a range of the cable including the bent portion, and retains a shape of the bent portion. The twisted wire is in contact with the holding member at least in a part of the bent portion.