Electrical Connector Stake Effect Elimination via Elastic Pressing

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Solution Overview

Problem

Current electrical connection devices experience signal distortion due to the 'stake effect' during high-frequency signal transmission, where the ends of conductors become warped and fail to make proper contact, leading to poor signal quality.

Innovation Solution

An electrical connection device design featuring a first mating element with a strip-shaped conductor and a pressing member that applies a downward force through an elastic body to ensure full contact with a second conductor, eliminating gaps and ensuring conductive connection between the edges and surfaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If an elastic body is used to press on conductors for crimping, then the contacting force between conductors is increased, but the conductor ends may warp up and displace from the contact area, causing stake effect and signal distortion

Engineering Contradiction:
Improvecontacting forceVSAvoidsignal transmission quality
Core Design Contradiction:
ForceVSReliability

Solution Approach 1:

The pressing member is divided into multiple independent pressing units, each corresponding to a conductor. This segmentation allows independent control of pressing force on each conductor, preventing warping while ensuring adequate contact force. Each pressing unit can be adjusted separately to optimize contact without causing displacement or stake effect.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The pressing force parameters are optimized by adjusting the elasticity coefficient of the elastic body and the pressing member configuration. By changing the physical parameters of the elastic body (material composition, thickness, elasticity coefficient), the pressing force is controlled to be sufficient for contact but not excessive to cause warping. The pressing member's contact area and distribution are also adjusted to distribute force evenly.

Inventive Principle:
Principle #35Parameter changes

2Stability of the object's composition

If external force is applied for crimping to increase contacting force, then the connection stability is improved, but the complexity of the device increases due to additional pressing mechanisms

Engineering Contradiction:
Improvecrimping stabilityVSAvoidpressing mechanism complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The elastic body provides self-adjusting pressing force through its elastic properties. When conductors are inserted, the elastic body automatically deforms and applies the necessary pressing force without requiring external actuation mechanisms. This self-service approach maintains crimping stability while avoiding complex pressing mechanisms, as the elastic body adapts to the conductor dimensions and maintains consistent contact force.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The pressing function is merged with the insulating body structure. The elastic body is integrated into the insulating body, and the pressing member is combined with the insulating body's support structure. This merging eliminates separate pressing mechanism components, reducing device complexity while maintaining crimping stability through the integrated elastic pressing system.

Inventive Principle:
Principle #5Merging (Combining)

3Area of stationary object

If the contact area is increased to improve signal transmission, then the contacting force is enhanced, but the risk of conductor warping and displacement increases

Engineering Contradiction:
Improvecontact areaVSAvoidconductor positioning accuracy
Core Design Contradiction:
Area of stationary objectVSManufacturing precision

Solution Approach 1:

The pressing member is designed with different contact area characteristics for different regions. The pressing surface has optimized local contact areas that distribute pressure evenly across the conductor contact zone. This local quality optimization ensures sufficient contact area for signal transmission while preventing excessive pressure concentration that could cause warping or displacement, maintaining manufacturing precision.

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 design eliminates the stake effect, reducing signal distortion and enhancing the quality of high-frequency signal transmission by ensuring tight and consistent contact between conductors.

Implementation Method 1

an elastic body is located between the pressing member and the first conductor, such that the pressing member is configured to downward abut the elastic body, and the elastic body is configured to downward abut the first conductor

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS10135186B2Electrical connection device
Publication Date: 2018.11.20 LOTES
  • US10135186B2 patent drawing
  • US10135186B2 patent drawing
  • US10135186B2 patent drawing

AI summary

An electrical connection device includes: a first insulating body; a first conductor is accommodated in the first insulating body, a foremost end of a lower surface of the first conductor is provided with a lower edge, and a contact area extends backward from the lower edge; a second mating element including a second conductor located below the first conductor and provided with a front edge and a rear edge and a top surface connected to the front edge and the rear edge; an elastic body located above the first conductor; and a pressing member presses the elastic body and provides a downward acting force such that the first conductor downward abuts the second conductor, the contact area is fully attached to the top surface, the lower edge is located between the front edge and the rear edge and abuts the top surface, and the rear edge abuts the contact area.