RF Connector Elastic Element Axial Movement

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Solution Overview

Problem

The inconsistency in fit clearances between male and female radio frequency connectors due to assembly errors affects the electrical strength and operational performance, potentially leading to failure in interconnection, and existing solutions like support spring coils result in large housing volumes that are not suitable for product miniaturization.

Innovation Solution

A radio frequency connector design featuring a support portion connected to a ground cable via a first external conductor and a first inner conductor, where the first inner conductor is connected using a first elastic element, allowing axial movement and reducing housing volume, and additional elastic elements between fasteners and conductors to improve tolerance capabilities for blind-mating assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If support spring coils are used for fastening radio frequency connectors, then the connectors can be securely mounted, but the housing volume becomes relatively large

Engineering Contradiction:
Improvefastening strengthVSAvoidhousing volume
Core Design Contradiction:
StrengthVSVolume of stationary object

Solution Approach 1:

The patent employs elastic elements that can dynamically adjust to assembly errors through deformation, replacing rigid support spring coils with flexible components that absorb dimensional variations, thereby reducing housing volume while maintaining connection reliability

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the physical state of the fastening mechanism from rigid (support spring coils) to elastic (deformable elements), allowing the system to adapt to dimensional variations through elastic deformation, achieving both compact size and reliable connection

Inventive Principle:
Principle #35Parameter changes

2Manufacturing precision

If assembly errors are not compensated, then the structure remains simple, but fit clearances become inconsistent affecting electrical strength

Engineering Contradiction:
Improvefit clearance consistencyVSAvoidstructure complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent incorporates elastic elements in advance that can compensate for assembly errors before they affect connection quality, cushioning the impact of dimensional variations on fit clearances and electrical strength

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The elastic elements act as intermediaries between the connector components, absorbing and compensating for assembly errors, thereby maintaining consistent fit clearances without requiring complex adjustment mechanisms

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If tolerance capability is improved for blind-mating assembly, then assembly efficiency increases, but the connector structure becomes more complex

Engineering Contradiction:
Improveassembly efficiencyVSAvoidconnector structure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The elastic elements enable the connector to self-adjust and self-align during blind-mating assembly, automatically compensating for tolerance variations without requiring complex guidance mechanisms or external adjustment devices

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The dynamic elastic elements provide real-time adaptation during assembly, allowing the connector to accommodate tolerance variations through deformation, thereby simplifying the overall structure while improving blind-mating capability

Inventive Principle:
Principle #15Dynamics

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 enhances the tolerance capabilities in both axial and radial directions, enabling efficient blind-mating assembly and improving radio frequency conduction performance while reducing the overall volume of the connector.

Implementation Method 1

the first inner conductor moves in an axial direction of the external conductor through deformation of the first elastic element

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Implementation Method 2

An axis of the at least one first fastener remains parallel to the axis of the first external conductor through deformation of the second elastic element

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS10819069B2Radio frequency connector
Publication Date: 2020.10.27 HUAWEI TECH CO LTD
  • US10819069B2 patent drawing
  • US10819069B2 patent drawing
  • US10819069B2 patent drawing

AI summary

A radio frequency connector includes: a support portion, where the support portion is disposed in a male connector of the radio frequency connector, and the support portion is configured to connect the male connector to a ground cable of transmission lines of a feeding network; a first external conductor disposed in the male connector of the radio frequency connector, where the first external conductor is connected to the support portion; and a first inner conductor disposed in the male connector of the radio frequency connector, where the first inner conductor is disposed inside the first external conductor, an axis of the first inner conductor coincides with an axis of the first external conductor, the first inner conductor is connected to the support portion by using a first elastic element, and the first inner conductor moves in an axial direction of the external conductor through deformation of the first elastic element.