Conductive Terminal Structure for Low-Force Pin Insertion

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Solution Overview

Problem

Existing conductive terminals struggle to balance good electrical contact with appropriate insertion force, often requiring excessive force for pin insertion and risking damage due to inadequate structural design.

Innovation Solution

A conductive terminal structure featuring support portions, connecting ribs, and spring plates with a concave shape, allowing for reduced insertion force and enhanced electrical contact while protecting against deformation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a large number of strip-shaped connecting ribs are designed on the conductive terminal to provide good electrical contact, then electrical conductivity is improved, but insertion force increases and the structure becomes more complex

Engineering Contradiction:
Improveelectrical contact qualityVSAvoidinsertion force
Core Design Contradiction:
ReliabilityVSForce

Solution Approach 1:

The conductive terminal structure is segmented into support portions and connecting ribs, where the support portions bear the insertion force and the connecting ribs provide electrical contact. This segmentation allows the force-bearing function and electrical contact function to be separated, reducing the insertion force required while maintaining good electrical contact.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different parts of the conductive terminal structure have different local qualities: the support portions are designed with higher strength to withstand insertion force, while the connecting ribs are designed with good conductivity for electrical contact. This local differentiation optimizes both mechanical and electrical performance without requiring the entire structure to be overly robust.

Inventive Principle:
Principle #3Local quality

2Power

If the conductive terminal structure is designed to withstand greater currents, then power transmission capability is improved, but the structure requires more material and becomes more complex

Engineering Contradiction:
Improvecurrent transmission capabilityVSAvoidstructural complexity
Core Design Contradiction:
PowerVSDevice complexity

Solution Approach 1:

The conductive terminal structure performs multiple functions simultaneously: the support portions provide mechanical strength for withstanding insertion force, the connecting ribs provide electrical contact, and the overall structure enables high current transmission. This multi-functionality allows the structure to handle greater currents without requiring separate components for each function, thereby reducing overall structural complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The conductive terminal is made of copper material that provides both mechanical strength and electrical conductivity. By using a composite material approach where the same material serves both structural and conductive purposes, the design achieves high power transmission capability without needing complex multi-material structures.

Inventive Principle:
Principle #40Composite materials

3Reliability

If excessive force is applied during pin insertion to ensure good electrical contact, then contact reliability is improved, but the risk of damage increases and ease of operation deteriorates

Engineering Contradiction:
Improvecontact reliabilityVSAvoidinsertion convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The structure segments the force application: support portions are designed to withstand and distribute the insertion force, preventing damage to the connecting ribs during insertion. This allows reliable electrical contact to be achieved without requiring excessive insertion force, improving ease of operation while maintaining contact reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support portions are designed in advance to provide structural reinforcement that cushions against insertion forces. This beforehand cushioning prevents damage to the connecting ribs during the insertion process, allowing reliable contact to be made without applying excessive force that would damage the structure or reduce ease of operation.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

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

The design ensures reliable electrical contact with reduced insertion force, improves the service life of the spring plates, and reduces contact resistance, facilitating efficient current transmission.

Implementation Method 1

The spring plate extends along the second direction and has a fixed end and a contact end distal to the fixed end, wherein the fixed end connects one of the two support portions, the contact end is suspended without support. When the conductive terminal structure is rolled to form a space, the contact end of the spring plate and the connecting ribs protrude toward the space, and are configured to electrically contact a pin inserted into the space.

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS20250309598A1Conductive terminal structure and socket
Publication Date: 2025.10.02 BELLWETHER ELECTRONICS KUNSHAN
  • US20250309598A1 patent drawing
  • US20250309598A1 patent drawing
  • US20250309598A1 patent drawing

AI summary

A conductive terminal structure includes two support portions, plural connecting ribs, and at least one spring plate. The two support portions are spaced from each other at a distance and extend along a first direction. The connecting ribs are disposed with intervals and extend along a second direction perpendicular to the first direction. Two ends of each of the connecting ribs respectively connect the two support portions, and the connecting ribs have a concave shape. The spring plate extends along the second direction and has a fixed end and a contact end distal to the fixed end. The fixed end connects one of the two support portions, and the contact end is suspended without support. When the conductive terminal structure is rolled to form a space, the contact end of the spring plate and the connecting ribs protrude toward the space.