Connector Auxiliary Ground Conductor Signal Transmission

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Solution Overview

Problem

In situations where space constraints limit the ability to maintain a coaxial structure for signal and ground terminals, existing connector designs often compromise signal transmission characteristics.

Innovation Solution

A cable assembly and connector design that includes a coaxial cable with a ground conductor surrounding a signal line, a signal terminal, a ground terminal, an insulating support, and an auxiliary ground conductor, where the insulating support is positioned between the auxiliary ground conductor and the signal terminal, enhancing signal transmission by increasing contact pressure and maintaining effective grounding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a coaxial structure is employed for signal terminal and ground terminal, then signal transmission characteristics are improved, but space requirements increase making it difficult to fit in constrained spaces

Engineering Contradiction:
Improvesignal transmission characteristicsVSAvoidspace occupied by terminals
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The invention divides the ground shielding function into two separate components: a ground terminal and an auxiliary ground terminal. This segmentation allows each terminal to be smaller and positioned separately around the signal terminal, maintaining the grounding effectiveness of a coaxial structure while reducing the overall space required. The auxiliary ground terminal is positioned at a different location than the ground terminal, creating a distributed grounding system that fits within constrained spaces.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention transitions from a single-plane coaxial arrangement to a three-dimensional distributed configuration. The ground terminal and auxiliary ground terminal are positioned at different angular positions around the signal terminal, utilizing spatial distribution in multiple dimensions. This dimensional approach maintains the surrounding ground shielding effect while accommodating the terminals within a smaller overall footprint.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Object-affected harmful factors

If ground terminal surrounds signal terminal in coaxial structure, then electromagnetic shielding is improved, but manufacturing complexity increases

Engineering Contradiction:
Improveelectromagnetic wave shieldingVSAvoidterminal structure complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The ground shielding function is segmented into two separate terminals positioned at different locations. This segmentation simplifies the manufacturing of each individual terminal while collectively achieving the electromagnetic shielding effect. Each terminal can be manufactured independently using standard processes, avoiding the complexity of forming a complete surrounding structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention applies ground terminals at specific critical locations around the signal terminal rather than creating a continuous surrounding structure. The ground terminal is positioned at one location while the auxiliary ground terminal is positioned at another location, providing localized shielding where most needed while reducing overall structural complexity.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS8790134B2Connector, cable assembly, and semiconductor testing device
Publication Date: 2014.07.29 MOLEX JAPAN
  • US8790134B2 patent drawing
  • US8790134B2 patent drawing
  • US8790134B2 patent drawing

AI summary

The connector includes an enclosure including insertion holes formed therein, into which tip end portions of coaxial cables provided with signal terminals and with ground terminals arranged at parts of peripheries of the signal terminals are inserted, and auxiliary ground conductors, which are retained by the enclosure, are electrically connected to the ground terminals, and are arranged at other parts of the peripheries of the signal terminals.