Flexible Wire Harness Holder for Pipe Routing
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Solution Overview
Problem
Conventional wire harnesses with holders attached to metal shield pipes face restrictions in routing due to the holder's design, which complicates the structure and requires additional modifications to the pipe, limiting the flexibility in managing the length of the electric wire drawn out.
Innovation Solution
A wire harness with a flexible holder that surrounds the electric wire and is inserted into the pipe, where the pipe end is crimped to bring the holder's inner and outer surfaces into contact, restricting displacement and allowing for simple regulation of the electric wire's length, with optional features like a fastener for secure contact and a groove for axial positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a holder with a holding piece extending outward from the shield pipe is used to regulate the electric wire length, then the electric wire is protected from contact with the pipe end, but the routing flexibility is restricted and the structure becomes complicated
Solution Approach 1:
The holder is designed as a flexible cylindrical cover that can be deformed to create securing force. The holder includes a securing portion with circumferential wrinkles that can be radially contracted to grip the electric wire, providing both protection and routing flexibility without complex structures
Solution Approach 2:
The invention extracts the essential function of wire regulation and protection from the complex holder structure with holding pieces and mounting holes. Instead, it uses a simple cylindrical cover that secures the wire through radial deformation of the holder body itself, eliminating the need for separate holding pieces and simplifying the overall structure
2Stability of the object's composition
If a holder with projection and mounting hole engagement is used to attach to the shield pipe, then the holder is securely fixed, but additional modifications to the pipe are required and the structure becomes complicated
Solution Approach 1:
The invention introduces a clamp as an intermediary component that attaches to the shield pipe and holds the holder. The clamp has a clamp body that grips the pipe and a clamp arm that secures the holder, eliminating the need for mounting holes in the pipe while providing stable fixation
Solution Approach 2:
The fixation system is segmented into separate functional components: the clamp body that attaches to the pipe, the clamp arm that holds the holder, and the holder itself. This segmentation allows each component to be optimized independently and simplifies installation without requiring modifications to the shield pipe
3Ease of manufacture
If the holder structure is simplified to eliminate projections and mounting holes, then the manufacturing process is easier, but the fixation stability may be compromised
Solution Approach 1:
The holder utilizes dynamic radial deformation of its circumferential wrinkles to create securing force. The securing portion can be radially contracted to grip the electric wire firmly, providing stable fixation through mechanical deformation rather than static geometric interlocking
Solution Approach 2:
The holder is pre-formed with circumferential wrinkles that can be radially contracted. This preliminary structuring allows the holder to be easily manufactured in a relaxed state while providing strong securing force when deformed during installation, achieving both ease of manufacture and stable fixation
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
This configuration effectively regulates the length of the electric wire drawn out with a simplified structure, preventing damage from pipe contact and allowing for flexible routing without the need for complex modifications to the pipe.
Implementation Method 1
the end of the pipe is crimped and the holder is flexurally deformed, whereby an inner circumferential surface of the pipe and an outer circumferential surface of the holder are brought into intimate contact with each other
Implementation Method 2
an inner circumferential surface of the holder and an outer circumferential surface of the electric wire are brought into intimate contact with each other
Data Source
AI summary
A wire harness, wherein: the holder surrounds the electric wire and is inserted into the end of the pipe, a groove extending along a circumferential direction of the holder and facing an inner circumferential surface of the pipe is provided on an outer circumferential surface of the holder, and the end of the pipe is crimped and the holder is flexurally deformed, whereby the inner circumferential surface of the pipe and the outer circumferential surface of the holder are brought into intimate contact with each other, and an inner circumferential surface of the holder and an outer circumferential surface of the electric wire are brought into intimate contact with each other, a crimped portion of the end of the pipe being reduced in diameter inward in a radial direction of the pipe and being engaged with the groove of the holder.