Multi-Coaxial Connector Assembly for Compact Low-Loss PCB Contact

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Solution Overview

Problem

Conventional coaxial cable connectors face challenges in miniaturization due to cumbersome assembly and potential signal loss when trying to narrow the contact gap between cables, limiting their integration and efficiency in high-frequency applications.

Innovation Solution

A multiple coaxial cable connector design featuring pogo pin ends, a cable guide housing with through-holes, a cable locker for secure alignment, a housing cover, and a reference plate with through-holes, along with SMD sockets and cylindrical members for enhanced coupling and reduced signal loss, allowing for increased integration and efficient high-frequency signal transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If multiple coaxial cables are arranged closely to increase integration, then device miniaturization is improved, but signal loss increases due to adjacent cables

Engineering Contradiction:
Improvedevice sizeVSAvoidsignal loss
Core Design Contradiction:
Volume of moving objectVSLoss of energy

Solution Approach 1:

A ground shield structure is introduced as an intermediary element between adjacent coaxial cables. This ground shield acts as a mediator that electrically isolates the cables from each other while maintaining close physical proximity, thereby preventing signal interference and loss despite the cables being arranged closely together for miniaturization

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If connectors are installed at intervals to ensure proper contact, then connection reliability is improved, but device size increases due to space requirements

Engineering Contradiction:
Improveconnection reliabilityVSAvoiddevice size
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

Multiple coaxial cables are merged into a single integrated connector assembly with a common ground shield and housing structure. This merging allows multiple cable connections to be achieved in a compact space without requiring separate connectors spaced at intervals, thereby maintaining connection reliability while reducing overall device size

Inventive Principle:
Principle #5Merging (Combining)

3Manufacturing precision

If coaxial cables are contacted one by one with the board, then assembly precision is improved, but assembly time increases significantly

Engineering Contradiction:
Improveassembly precisionVSAvoidassembly time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

Multiple coaxial cables are pre-assembled with their connectors and ground shield into a ready-to-install unit before being mounted to the circuit board. This preliminary assembly action allows the entire multi-cable connector assembly to be installed as a single unit, dramatically reducing assembly time while maintaining precision through pre-positioning

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12100905B2Multiple coaxial cable connector
Publication Date: 2024.09.24 WITHWAVE CO LTD
  • US12100905B2 patent drawing
  • US12100905B2 patent drawing
  • US12100905B2 patent drawing

AI summary

Proposed is a multiple coaxial cable connector. The multiple coaxial cable connector includes: multiple coaxial cables, each of the coaxial cables having a cable connector with a pogo pin end making contact with a printed circuit board; a cable guide housing having multiple cable through-holes, each of the cable through-holes allowing a part of each of the coaxial cables including the cable connector to be inserted and guided therein; a cable locker fitted over the coaxial cables and thus coupling the cable guide housing and the coaxial cables to each other; a housing cover covering the lateral surface of the cable guide housing; a reference plate having multiple through-holes, each of the multiple through-holes allowing the cable connector of each of the multiple coaxial cables to be inserted thereinto; and a housing screw coupling the cable guide housing to a coupling hole formed in the printed circuit board.