Electrical Connector Terminals With Varying Widths To Reduce Signal Interference

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Solution Overview

Problem

Existing electrical connector assemblies with tightly spaced terminals experience signal interference due to close proximity of adjacent terminals, leading to unstable signal transmission.

Innovation Solution

The electrical connector assembly features terminals with elastic and securing arm portions of varying widths, creating larger gaps between adjacent terminals to minimize signal interference while maintaining a compact design, and includes lock portions to prevent disengagement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If terminals are arranged in a tightly spaced relationship to make the connector more compact, then the connector size is reduced, but electrical signal interference between adjacent terminals occurs

Engineering Contradiction:
Improveconnector sizeVSAvoidsignal interference
Core Design Contradiction:
Volume of moving objectVSObject-affected harmful factors

Solution Approach 1:

The patent applies local quality by creating non-uniform spacing between terminals - specifically, increasing the gap between adjacent terminals at signal-critical locations while maintaining tight spacing elsewhere. The receiving portions are designed with varying width dimensions along their length, creating larger gaps in specific regions to reduce electromagnetic interference while preserving overall compactness of the connector assembly.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent segments the terminal structure into multiple functional portions - receiving portions, contact arm portions, and locking portions - each with optimized dimensions. The receiving portions are specifically segmented along their length with different width dimensions, creating localized gap variations that address signal interference in specific regions without compromising the overall compact design.

Inventive Principle:
Principle #1Segmentation

2Quantity of substance

If terminals are arranged in a tightly spaced relationship to increase terminal density, then more terminals can be fitted in the same space, but signal transmission stability deteriorates

Engineering Contradiction:
Improveterminal densityVSAvoidsignal transmission stability
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The patent implements local quality by differentiating the width dimensions of receiving portions at different locations. The receiving portions have larger gap dimensions in regions where signal transmission occurs, while maintaining smaller dimensions in non-critical areas. This selective spacing strategy preserves high terminal density overall while ensuring signal transmission stability in critical regions through enhanced spacing.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent addresses the two-dimensional spacing problem by introducing dimensional variation along the length of the receiving portions. Instead of uniform spacing in one plane, the design varies the gap dimension along the longitudinal axis of the receiving portions, creating a three-dimensional spacing optimization that maintains density while improving signal stability.

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

3Ease of manufacture

If uniform width dimensions are used for receiving portions throughout their length, then manufacturing is simplified, but signal interference cannot be effectively minimized

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidsignal interference
Core Design Contradiction:
Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent resolves this contradiction by applying local quality - the receiving portions are manufactured with varying width dimensions along their length rather than uniform dimensions. This allows the manufacturing process to accommodate different gap requirements in different regions, minimizing signal interference in critical areas while maintaining reasonable manufacturing complexity through a systematic dimensional variation approach.

Inventive Principle:
Principle #3Local quality

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 reduces signal interference and enhances transmission reliability without increasing the size of the connectors, ensuring stable and efficient signal transfer between adjacent terminals.

Implementation Method 1

the elastic arm portions are elastically displaceable in the sheet thickness direction, and contact protrusions used for contacting the plug terminals are formed in a convex-curved configuration

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS9450318B2Electrical connector assembly
Publication Date: 2016.09.20 HIROSE ELECTRIC CO LTD
  • US9450318B2 patent drawing
  • US9450318B2 patent drawing
  • US9450318B2 patent drawing

AI summary

In the terminals of the first electrical connector, the elastic arm portions are formed such that their width dimensions in the array direction of the above-mentioned terminals are smaller than the securing arm portions; in the terminals of the second electrical connector, the sections that correspond to the securing arm portions are formed such that their width dimensions are smaller than the sections that correspond to the elastic arm portions; on the elastic arm portions side, the terminals of the first electrical connector are formed such that their width dimensions are smaller than the terminals of the second electrical connector; and on the securing arm portions side, the terminals of the second electrical connector are formed such that their width dimensions are smaller than the terminals of the first electrical connector.