High-Speed Connector Ground Assembly for Shorter Stub Paths

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Solution Overview

Problem

Existing high-speed connectors suffer from deteriorated high-frequency characteristics due to excessive stub generation and challenging assembly issues caused by the perpendicular insertion of thin metal sheets between ground terminals, which also result in smaller openings that complicate mass assembly.

Innovation Solution

The design features parallel plate surfaces between metal sheets and ground terminals, with an insulating block incorporating a wave-absorbing material, and a thickness greater than the ground terminals, enhancing assembly and improving high-frequency characteristics by reducing stubs and increasing slot openings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the metal sheet is inserted perpendicular to the ground terminal plate surface, then the assembly structure stability is improved, but the high-frequency characteristics deteriorate due to excessive stub generation

Engineering Contradiction:

Improveassembly structure stabilityVSAvoidhigh-frequency characteristics

Core Design Contradiction:

Stability of the object's compositionVSReliability

Solution Approach 1:

The patent inverts the insertion orientation of the metal sheet from perpendicular to parallel relative to the ground terminal plate surface. This inversion resolves the contradiction by eliminating excessive stub generation (improving high-frequency characteristics) while maintaining assembly stability through the parallel configuration that allows for proper engagement and fixation.

Inventive Principle:

Principle #13The other way round (Inversion)

2Reliability

If a single thin metal sheet is used for insertion, then the high-frequency characteristics are improved by reducing stub length, but the assembly difficulty increases due to smaller opening size

Engineering Contradiction:

Improvehigh-frequency characteristicsVSAvoidassembly ease

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent introduces asymmetry in the insertion assembly design by combining a thin metal sheet with a thicker insulating block. The insulating block has a larger cross-sectional area than the metal sheet, creating an asymmetric structure where the broader insulating block facilitates easier assembly and engagement while the thin metal sheet maintains low stub length for high-frequency performance.

Inventive Principle:

Principle #4Asymmetry

Solution Approach 2:

The patent implements a nested structure where the thin metal sheet is positioned within or alongside the thicker insulating block. The insulating block serves as an outer structure that provides ease of assembly, while the metal sheet is nested within this structure to provide the high-frequency characteristics. This nesting allows the assembly benefits of a larger component while maintaining the performance benefits of a smaller component.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Device complexity

If the metal sheet plate surface is perpendicular to the ground terminal plate surface, then the engagement structure is simplified, but the stub length increases excessively

Engineering Contradiction:

Improveengagement structure complexityVSAvoidstub length

Core Design Contradiction:

Device complexityVSLength of stationary object

Solution Approach 1:

The patent inverts the orientation relationship from perpendicular to parallel between the metal sheet plate surface and the ground terminal plate surface. This inversion directly addresses the contradiction by keeping the engagement structure relatively simple while preventing the metal sheet from extending excessively beyond the ground terminal, thus minimizing stub length without significantly increasing structural complexity.

Inventive Principle:

Principle #13The other way round (Inversion)

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

This configuration improves high-frequency performance by minimizing stub generation and crosstalk while facilitating easier assembly through larger slot openings and secure fixation, ensuring stable connections and reduced noise absorption.

Implementation Method 1

the insulating block comprises a wave absorbing material

Methodology Applied

Scientific EffectWave absorbing: Absorption (EM radiation)

Data Source

PatentUS20260024949A1Electrical connector

Publication Date: 2026.01.22 LOTES

AI summary

An electrical connector includes a plurality of insertion assemblies located between two adjacent ground terminals. Each insertion assembly includes a metal sheet and an insulating block including a wave absorbing material. The metal sheet is electrically connected to the two ground terminals. The metal sheet and the ground terminals are in plate shapes, and plate surfaces of the metal sheet and the ground terminals are parallel to each other. A thickness of the insulating block is greater than a thickness of each of the ground terminals. Two side surfaces of the insulating block abut against the insulating body. In the present invention, the stub generated by the transmission path between the two ground terminals is shorter, which has good high frequency characteristics, and the whole insertion assemblies may be more easily assembled and fixed to the insulating body.