Grounded Connector Radial Protrusions Axial Space Reduction

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Solution Overview

Problem

Conventional shielded electrical connectors require significant axial space for resilient metallic bands to ensure reliable shielding connections, which limits their compactness and efficiency.

Innovation Solution

The use of discrete radial protrusions with resilient conductive connecting means on the connector sleeves, which deform to establish a reliable electrical connection with mating connectors, integrating this functionality within the keying arrangement to reduce axial dimensions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a resilient metallic band is used for electrical connection of shielding, then reliable electrical contact is ensured, but axial space consumption increases

Engineering Contradiction:
Improveelectrical contact reliabilityVSAvoidaxial dimension
Core Design Contradiction:
ReliabilityVSLength of moving object

Solution Approach 1:

The continuous resilient metallic band is segmented into discrete radial protrusions distributed around the circumference of the sleeve. Each protrusion provides localized electrical contact through its resilient connecting means, eliminating the need for a continuous band and reducing axial space consumption while maintaining reliable electrical connection.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The electrical connection function is transitioned from an axial arrangement (continuous band along the axis) to a radial arrangement (protrusions extending radially from the sleeve). This dimensional change allows the connecting means to bear on the mating sleeve in a radial direction, significantly reducing the axial dimension required for the connection.

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

2Length of moving object

If discrete radial protrusions with resilient connecting means are used, then axial space is reduced, but manufacturing complexity increases

Engineering Contradiction:
Improveaxial dimensionVSAvoidmanufacturing complexity
Core Design Contradiction:
Length of moving objectVSEase of manufacture

Solution Approach 1:

The keying arrangement and electrical connection function are merged into a single integrated structure. The discrete radial protrusions serve dual purposes: providing circumferential alignment (keying) and establishing electrical connection through their resilient connecting means. This integration eliminates the need for separate components, simplifying manufacturing despite the reduced axial dimension.

Inventive Principle:
Principle #5Merging (Combining)

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 solution enables a compact and reliable electrical grounding connection, reducing the axial space required while maintaining effective electrical coupling between shielding and inner conductors, suitable for high-bandwidth and high-voltage applications.

Implementation Method 1

the connecting means is deformed and thereby bears on the sleeves of both connectors

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS7744383B2Grounded connector
Publication Date: 2010.06.29 ITT MANUFACTURING ENTERPRISES LLC
  • US7744383B2 patent drawing
  • US7744383B2 patent drawing
  • US7744383B2 patent drawing

AI summary

Ground connections are made between first and second electrical connectors (1, 27). The first connector has a first sleeve (5) and has contact elements (23) mounted on the first sleeve. The second connector has a second sleeve (31) with slots (35) that receive the contact elements (23) when the connectors mate. Locating ribs (21) lie forward (F1) of the contact elements to align the slots in the second sleeve with the contact elements.