Wire Harness Holder Engagement to Prevent Longitudinal Wire Displacement
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Solution Overview
Problem
Conventional wire harnesses rely on adhesive tape to hold electric wires, which results in weak holding power and displacement of the wires in the longitudinal direction, necessitating tape winding work.
Innovation Solution
A wire harness design that uses a heat-shrinkable tube fixed to the electric wire and engages with a holder to restrict wire movement in the longitudinal direction, eliminating the need for adhesive tape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive tape is used to hold the electric wire, then the wire position can be maintained, but the holding power is weak and the wire tends to be displaced in the longitudinal direction
Solution Approach 1:
The invention extracts and eliminates the adhesive tape from the wire harness structure, replacing it with a mechanical engagement system consisting of a holder with engagement protrusions that directly engage with the wire, thereby removing the need for tape winding operations while providing more reliable holding power
Solution Approach 2:
The invention replaces the adhesive mechanical system (tape relying on adhesive power) with a mechanical engagement system (holder with protrusions engaging directly with the wire), transforming the holding mechanism from chemical adhesion to mechanical interlocking, which provides stronger and more reliable holding power without requiring tape winding work
2Reliability
If adhesive tape is used to hold the electric wire, then the wire can be positioned, but the structure becomes more complex and requires additional parts
Solution Approach 1:
The invention merges the wire holding function and the positioning function into a single integrated holder component with engagement protrusions, eliminating the need for separate adhesive tape and reducing the total number of parts while maintaining reliable wire positioning stability
Solution Approach 2:
The holder is designed with multi-functionality, serving both as a structural support element and as a wire positioning mechanism through its engagement protrusions, thereby consolidating multiple functions into one component and reducing overall device complexity
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
The design effectively prevents wire displacement without tape, reduces the number of parts, and protects the joint from exposure to water, while maintaining secure wire positioning.
Implementation Method 1
a heat-shrinkable tube that has heat-shrinkability and is fixed to an outer peripheral surface of the electric wire
Data Source
AI summary
A wire harness including: an electric wire; a pipe into which the electric wire is inserted; a holder that is fixed to a longitudinal end of the pipe and holds the electric wire; and a heat-shrinkable tube that has heat-shrinkability and is fixed to an outer peripheral surface of the electric wire, wherein the holder includes an engagement that engages with the heat-shrinkable tube to restrict movement of the electric wire in a longitudinal direction relative to the holder.