Push-On Differential Pair Connector Footprint Reduction

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Solution Overview

Problem

Existing differential pair connectors for RF microwave frequencies require external coupling mechanisms like coupling nuts, which are impractical for two electrical conductors and result in a larger footprint, making them difficult to install and remove efficiently.

Innovation Solution

A push-on high frequency differential interconnect system with a tubular body having segmented portions for self-alignment and a dielectric member with openings for electrical conductors, allowing for easy installation and reliable electrical connections up to 40 GHz without the need for external coupling mechanisms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If external coupling mechanisms like coupling nuts are used in existing differential pair connectors, then the connectors can be assembled and disassembled, but the footprint increases and installation/removal becomes difficult

Engineering Contradiction:
Improveinstallation and removal easeVSAvoidconnector footprint
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The patent removes the external coupling nut mechanism from the connector design. Instead of using a separate coupling nut for assembly, the invention integrates the locking function directly into the connector body through spring fingers that engage with corresponding features on the mating connector, eliminating the need for external coupling mechanisms and reducing overall footprint

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent combines the coupling and locking functions into the connector body itself. The spring fingers are integrated into the connector housing, merging what were previously separate components (connector body + coupling nut) into a single integrated unit, thereby reducing footprint while maintaining assembly capability

Inventive Principle:
Principle #5Merging (Combining)

2Ease of operation

If coupling nuts are used for differential pair connectors, then connection can be established, but the system becomes impractical for two electrical conductors and requires tools

Engineering Contradiction:
Improveinstallation easeVSAvoidcoupling mechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The spring fingers are designed to automatically engage and lock the connectors together through a push-on motion without requiring external tools or complex coupling mechanisms. The elastic deformation of the spring fingers provides self-aligning and self-locking functionality, making the connector self-servicing during assembly

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The connector body is segmented into multiple spring fingers that can independently deform and engage with corresponding features on the mating connector. This segmentation allows each finger to handle individual conductors separately, making the system practical for two-electron conductor configurations while simplifying the overall coupling mechanism

Inventive Principle:
Principle #1Segmentation

3Reliability

If larger interconnects are used in the market, then connection reliability can be achieved, but the footprint taken up increases

Engineering Contradiction:
Improveconnection reliabilityVSAvoidinterconnect footprint
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The patent uses spring fingers made of elastic material that can deform flexibly during engagement and then maintain a constant locking force. This flexible mechanism provides reliable mechanical and electrical connection while occupying minimal space, as the spring fingers can be made thin and compact compared to rigid locking mechanisms

Inventive Principle:
Principle #30Flexible shells and thin films

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 solution provides a streamlined, cost-effective, and reliable RF microwave connection with low mechanical engagement forces, reducing the footprint of the interconnect system and enabling easy installation and removal while ensuring proper alignment and electrical performance.

Implementation Method 1

the plurality of segmented portions biased radially outward to engage and retain a corresponding connector

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS8323058B2Digital, small signal and RF microwave coaxial subminiature push-on differential pair system
Publication Date: 2012.12.04 CORNING OPTICAL COMM RF LLC
  • US8323058B2 patent drawing
  • US8323058B2 patent drawing
  • US8323058B2 patent drawing

AI summary

The differential pair system includes a push-on high frequency differential interconnect and push-on high frequency differential connector. The system allows for blind mating of the two components, using a keying system for the two electrical conductors to be axially and radially aligned.