Wire Fixing Member Using Adhesive Tape and Housing Projection
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Solution Overview
Problem
Existing wire fixing members with metal crimp rings can damage insulation coatings when wires are pulled or swung strongly, leading to potential damage to the wire cores.
Innovation Solution
A wire fixing member with a housing and shield shell that uses a housing projection and adhesive tape to securely fix wires without damaging insulation coatings, where the tape covers both the wire and the projection, and guide grooves facilitate easy alignment, enhancing operational efficiency and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a metal crimp fitting is used to fix wires, then the wire holder can be securely attached to the wires, but the insulation coatings may be damaged and wire cores may be damaged when wires are pulled strongly
Solution Approach 1:
The patent introduces a cover as an intermediary element between the wire and the housing projection. This cover distributes the mechanical stress and prevents direct contact that would cause insulation damage, while still maintaining secure fixation. The cover acts as a protective mediator that allows the fixing mechanism to function without harming the wire insulation.
Solution Approach 2:
The cover is designed as a flexible component that can conform to the wire and housing projection surfaces. This flexibility allows it to provide protective coverage while accommodating movements and deformations of the wire without causing damage, yet maintains sufficient friction and adhesion for secure fixation.
2Object-affected harmful factors
If a cover is used to cover both the wire and housing projection, then the wire and housing projection can be integrally fixed without damaging insulation coating, but the device structure becomes more complex
Solution Approach 1:
The cover is integrated with the housing projection as a single assembly, where the cover and projection work together as a unified fixing mechanism. This merging reduces the number of separate components and simplifies the overall structure while still providing the protective coverage needed to prevent insulation damage.
Solution Approach 2:
The cover is designed to be self-installing and self-adjusting, conforming to the wire and housing projection surfaces through its own elastic properties without requiring additional fastening mechanisms or complex assembly steps. This self-service capability reduces structural complexity while maintaining effective protection.
3Ease of operation
If guide grooves are added to the housing projection, then the wire can be easily arranged along the housing projection, but the manufacturing complexity increases
Solution Approach 1:
The guide grooves are pre-formed as integral features of the housing projection during the molding process. This preliminary action of creating the guiding structure in advance allows the wire to be easily aligned and positioned during assembly without requiring additional manufacturing steps or complex tooling.
Solution Approach 2:
The guide grooves modify the surface geometry parameters of the housing projection, creating specific contour features that guide wire placement. These geometric parameter changes provide mechanical guidance for wire alignment while being achievable through standard molding techniques, balancing ease of operation with manufacturing simplicity.
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 solution effectively maintains wire fixation without damaging insulation coatings, even when wires are pulled or swung, and provides a more reliable attachment than traditional heat shrinking methods, ensuring secure integration of wires and housing projections.
Implementation Method 1
A cover covers both the wire and the housing projection and adheres to the wire and the housing projecting portion for integrally fixing the wire and the housing projection
Data Source
AI summary
A wire fixing member (10) to be fixed to an unillustrated case housing a device by fixing a shield shell (40) to the case includes a housing (20) to be held in the shield shell (40), wires (W) pulled out through the housing (20), a housing projection (28) located at a part of the housing (20) where the wires W are pulled out and formed to project along the wires (W), and an adhesive tape (T) for integrally fixing the wires (W) and the housing projection (28) by covering both the wires (W) and the housing projection (28) and adhering to the wires (W) and the housing projection (28).