Spring-Loaded Connector Shell for Tolerance-Stable Signal Transmission
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Solution Overview
Problem
Connectors for high frequency signals suffer from variations in transmission characteristics due to dimensional tolerances, necessitating high-precision manufacturing that increases costs, hindering the achievement of high-performance transmission.
Innovation Solution
A connector design incorporating a cover shell with a contacting portion, catching portion, and spring portion that ensures reliable contact and minimizes gaps despite component tolerances, using a copper alloy for conductive components and resin for dielectric materials, with a spring portion elastically deforming to maintain consistent contact and reduce variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If each component is manufactured with high precision to reduce dimensional tolerance, then transmission characteristics consistency is improved, but manufacturing cost increases
Solution Approach 1:
The patent introduces a spring portion that changes the mechanical state of the cover shell from rigid to elastic, allowing it to deform and compensate for dimensional variations. This parameter change in the cover shell's rigidity enables tolerance absorption without requiring high-precision manufacturing of all components
Solution Approach 2:
The spring portion is designed to elastically deform in advance to compensate for potential gaps caused by dimensional tolerances. This beforehand cushioning mechanism ensures continuous contact between components even when manufacturing variations occur, preventing transmission characteristic degradation without needing expensive high-precision manufacturing
2Reliability
If dimensional tolerance is reduced through high-precision manufacturing, then transmission characteristics variation is reduced, but component cost increases
Solution Approach 1:
The cover shell's spring portion changes its rigidity parameter to enable elastic deformation, transforming it from a rigid component that requires tight tolerances to a flexible component that can absorb dimensional variations. This parameter change improves transmission reliability while avoiding high-precision manufacturing costs
Solution Approach 2:
The spring portion acts as an intermediary element between the cover shell and the back housing/front shell, mediating the dimensional tolerance issues. Through its elastic deformation, it ensures continuous contact and stable transmission characteristics without requiring expensive high-precision manufacturing of all components
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 achieves stable and consistent transmission characteristics by ensuring continuous contact between components, reducing variations and maintaining optimal performance across connectors.
Implementation Method 1
a spring portion elastically deformed by catching of the catching portion. The elastic deformation of the spring portion causes the cover shell to contact the back housing while pressing the back housing frontward, and to contact the front shell while pressing the rear end upper portion of the front shell upward
Data Source
AI summary
A connector includes a back housing, a front shell having a barrel portion and a grounding portion continuous with a rear portion of the barrel portion, and a cover shell. The cover shell has a contacting portion contacting a rear end upper portion of the front shell, a catching portion catching on the grounding portion, and a spring portion elastically deformed by catching of the catching portion. The elastic deformation of the spring portion causes the cover shell to contact the back housing while pressing the back housing frontward, and to contact the front shell while pressing the rear end upper portion of the front shell upward at the contacting portion.