Shield Connector Rattling Prevention
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Solution Overview
Problem
In assembled connectors, dimensional tolerances lead to gaps that cause the front end of the electrical connection element to rattle, hindering connection to a mating connector.
Innovation Solution
A shield connector design featuring a housing with a resilient contact portion that surrounds the shield terminal, preventing rattling by converting resilient pressure into a forward-moving force and incorporating a stopper and groove for proper orientation and reduced friction resistance, while minimizing the number of resilient contact portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If dimensional tolerances are applied in assembling the connector housing and electrical connection element, then manufacturing ease is improved, but the front end part of the electrical connection element rattles in the receptacle
Solution Approach 1:
The resilient contact portion is designed to be elastically deformable, allowing it to dynamically adapt to dimensional variations in the shield terminal while maintaining stable contact. The elastic deformation absorbs tolerance variations, preventing rattling without requiring tight manufacturing tolerances.
Solution Approach 2:
The resilient contact portion changes its physical state from rigid to elastic, utilizing material properties to compensate for dimensional tolerances. The elastic modulus and deformation characteristics are selected to match the tolerance range, transforming the rigid contact into a compliant interaction that eliminates rattling.
2Stability of the object's composition
If the resilient contact portion is designed to contact the outer peripheral surface of the shield terminal, then rattling is prevented, but friction resistance increases during withdrawal
Solution Approach 1:
The resilient contact portion is positioned at specific locations on the outer peripheral surface of the shield terminal rather than providing continuous contact. This localized contact reduces the total friction area while maintaining stability by targeting key anti-rattling positions.
Solution Approach 2:
The resilient contact portion is divided into multiple discrete contact points or segments around the shield terminal's outer periphery. This segmentation allows each point to provide stability while the gaps between segments reduce overall friction during withdrawal movements.
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
Effectively suppresses rattling of the shield terminal within the housing, ensuring secure connection and preventing erroneous insertion, while reducing friction resistance during withdrawal and avoiding interference with mating connectors.
Implementation Method 1
a resilient contact portion for resiliently coming into contact with an outer peripheral surface of the shield terminal
Data Source
AI summary
The present invention suppresses shield terminal backlash within a housing. This shield connector comprises: a shield terminal (30) of a form in which an inner conductor (31) and a dielectric (33) are surrounded by an outer conductor (34); and a housing (10) in which the shield terminal (30) is accommodated. The housing (10) has a hood portion (17) that surrounds the front end portion of the shield terminal (30) with a space therebetween. The housing (10) has formed therein an elastic contact portion (20) that elastically contacts the outer peripheral surface of the shield terminal (30).