Shield Connector Contact Structure for Lower Fitting Friction
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Solution Overview
Problem
In shield connectors, the resilient contact portion generates friction resistance when fitting the shield shell and mating shield shell, leading to increased fitting resistance and potential deformation of the resilient contact portion.
Innovation Solution
A shield connector design featuring a dielectric with an inner conductor, a tubular outer conductor with a resilient contact portion and cut portions, allowing the supporting portion to be resiliently deformed, thereby reducing friction resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a resilient contact portion is formed in the shield shell to enable resilient contact with the mating shield shell, then connection reliability is improved, but friction resistance increases and fitting resistance increases
Solution Approach 1:
The shield shell is segmented by forming a cut portion that divides the shell into multiple sections. This segmentation allows the shield shell to locally deform resiliently at the cut portion while maintaining overall structural integrity, enabling the resilient contact function without requiring a completely resilient contact portion
Solution Approach 2:
The cut portion is positioned specifically at the fitting end of the shield shell where resilient deformation is needed for contact. This local modification provides the necessary resilience at the contact interface while the rest of the shield shell maintains its original rigid structure, minimizing overall friction resistance
2Reliability
If a resilient contact portion is formed in the shield shell, then connection reliability is improved, but the resilient contact portion may deform excessively
Solution Approach 1:
The shield shell is divided into segments by the cut portion, creating controlled deformation zones. This segmentation allows localized resilient deformation at the cut portion while the uncut portions maintain structural stability and prevent excessive or uncontrolled deformation
Solution Approach 2:
The cut portion modifies the mechanical parameters of the shield shell by creating a controlled weakness point. This changes the deformation characteristics from rigid to resilient at the cut location, allowing controlled elastic deformation that maintains connection reliability without excessive structural change
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 reduces friction resistance in the resilient contact portion, minimizing fitting resistance and deformation, while maintaining stable contact and preventing buckling or rolling-up deformations.
Implementation Method 1
a cut portion formed in the outer conductor, the cut portion enabling a supporting portion supporting the resilient contact portion, out of the outer conductor, to be resiliently deformed
Data Source
AI summary
It is aimed to reduce friction resistance generated in a resilient contact portion. A shield connector is provided with a dielectric for accommodating an inner conductor, a tubular outer conductor for surrounding the dielectric, a resilient contact portion formed in the outer conductor, and a cut portion formed in the outer conductor and enabling a supporting portion supporting the resilient contact portion, out of the outer conductor, to be resiliently deformed. If the resilient contact portion contacts a mating outer conductor and is resiliently deformed, the supporting portion supporting the resilient contact portion is resiliently deformed by a reaction force from the mating outer conductor. Since a resilient deformation amount of the resilient contact portion is reduced by as much as the supporting portion is resiliently deformed, friction resistance generated in the resilient contact portion is reduced.