Cable Connector Crimp Structure for Strong Outer Conductor Retention
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Solution Overview
Problem
Existing connectors face issues with inadequate holding strength when crimping forces are not sufficient, leading to potential disconnection and reduced reliability in cable connections.
Innovation Solution
The connector design includes a crimping piece with a folded piece that serves as a beam to enhance rigidity and a slit to impart a spring property, improving the crimping force and ensuring a strong bond between the outer conductor and the outer terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a simple crimping structure is used, then the device complexity is reduced, but the holding strength becomes insufficient
Solution Approach 1:
The crimping piece incorporates a folded piece that can elastically deform during the crimping process. This dynamic structure allows the crimping piece to flex and conform to the cable outer conductor, then maintain a strong holding force after crimping, resolving the contradiction between simple structure and strong holding strength.
Solution Approach 2:
The folded piece changes its physical state from a relaxed configuration to a compressed configuration during crimping. This parameter change enables the crimping piece to generate and maintain high holding strength while keeping the overall structure relatively simple.
2Strength
If a rigid crimping structure is used, then the holding strength is improved, but the ease of operation deteriorates due to insufficient elasticity
Solution Approach 1:
The crimping piece includes a folded piece made of flexible material that can elastically deform during installation. This flexibility allows the crimping piece to be easily inserted and crimped onto the cable, while the elastic recovery provides strong bonding strength, resolving the contradiction between rigidity and ease of operation.
3Strength
If the crimping force is increased, then the holding strength is improved, but the risk of damaging the cable increases
Solution Approach 1:
The folded piece's elastic properties allow it to gradually apply crimping force and adapt to the cable's mechanical properties. This parameter change enables strong bonding without sudden excessive force that could damage the cable, resolving the contradiction between crimping force and cable damage risk.
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 improved rigidity and bonding between the outer conductor and the outer terminal enhance the cable's holding strength and connection reliability, preventing disconnection and maintaining electrical integrity.
Implementation Method 1
a folded piece (43a) configured by folding back a part of the crimping piece (43)
Implementation Method 2
a slit to impart a spring property
Data Source
AI summary
There is provided a connector that is attachable to an end of a cable, the cable including an inner conductor, an insulator that covers the inner conductor, and an outer conductor that covers the insulator. The connector includes: an inner terminal attachable to the inner conductor; an insulating member that covers the inner terminal; and an outer terminal that covers the insulating member. The outer terminal includes: a crimping piece configured to be crimped to the outer conductor; and a folded piece configured by folding back a part of the crimping piece.