Connector Pivoting Member Load Distribution

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Solution Overview

Problem

Existing connectors with pivoting members face damage during miniaturization due to thinning insulator walls and reduced contact pitches, leading to instability in electrical connections.

Innovation Solution

The connector design incorporates anchoring grooves and engaging rods to distribute the load on pivoting members, preventing deformation by using extended portions on contacts and plate-shaped pushing portions to ensure stable contact and prevent warping during pivotal movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the connector is miniaturized with smaller contact pitches and thinner insulator walls, then the overall size and height are reduced, but the pivoting member becomes prone to damage and deformation during pivotal movement

Engineering Contradiction:
Improveconnector sizeVSAvoidpivoting member stability
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The pivoting member is divided into multiple independent pushing portions, each supported by separate anchoring grooves in the housing. This segmentation distributes the mechanical load across multiple support points, preventing concentration of stress that would cause deformation in miniaturized connectors.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The housing is designed with localized anchoring grooves at specific positions to provide targeted support to each pushing portion of the pivoting member. This local reinforcement strategy strengthens critical areas without increasing the overall connector size, maintaining miniaturization while preventing pivoting member damage.

Inventive Principle:
Principle #3Local quality

2Quantity of substance

If the number of contacts is increased to maintain electrical connection density, then the electrical connectivity is improved, but the pivoting member becomes more prone to warping due to increased load

Engineering Contradiction:
Improvenumber of contactsVSAvoidpivoting member shape stability
Core Design Contradiction:
Quantity of substanceVSStability of the object's composition

Solution Approach 1:

Each contact's pushing portion is independently supported by separate anchoring grooves, segmenting the load path. This prevents cumulative warping effects that would occur with increased contact density, as each pushing portion is stabilized by its own anchoring structure in the housing.

Inventive Principle:
Principle #1Segmentation

3Length of stationary object

If the insulator walls are made thinner to reduce connector height, then the overall height is reduced, but the structural support for the pivoting member is weakened

Engineering Contradiction:
Improveconnector heightVSAvoidinsulator structural support
Core Design Contradiction:
Length of stationary objectVSStrength

Solution Approach 1:

The support function for the pivoting member is extracted from the insulator walls and transferred to the housing structure through anchoring grooves. This allows the insulator walls to be made thinner for reduced height while the housing provides the necessary mechanical support to prevent pivoting member deformation.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The anchoring grooves in the housing serve as an intermediary support structure between the pivoting member and the housing body. This mediator provides the required structural support for miniaturized connectors with thin insulator walls, distributing loads without requiring thick insulator material.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 ensures a stable electrical connection without damaging the pivoting member, even with very small contact pitches and thin insulator walls, maintaining connectivity and preventing structural damage.

Implementation Method 1

a pivoting member (14) mounted on the housing (12) on the opposite side of the fitting opening (5) and acting upon the contacts (15, 16) to bring them into contact with the connecting object (80)

Methodology Applied
Scientific EffectPivotal movement: Hinge

Implementation Method 2

an elastic portion (22) and a fulcrum portion (24) positioned between the contact portion (152) and the connection portion (156) and jointing the first piece (151) and the other end of the second piece (155)

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS7828570B2Connector having improved pivoting member design
Publication Date: 2010.11.09 FUJIKURA LTD
  • US7828570B2 patent drawing
  • US7828570B2 patent drawing
  • US7828570B2 patent drawing

AI summary

A connector to be detachably fitted with a connecting object, includes a required number of contacts, a housing, and a pivoting member acting upon the contacts to bring them into contact with a connecting object. In case of having many contacts, at least one contact is provided with an extended portion at a tip of its pressure receiving portion to extend toward its connection portion, and instead of a pushing portion of the pivoting member acting upon the contact, the pivoting member is provided with an engaging rod to engage the extending portion of the contact. The contact is arranged at an optional position so as to prevent the pivoting member from being warped. The contacts are arranged in a single row, or alternately arranged to be staggered. With the connector thus constructed, the pivoting member is not damaged when pivotally moving after the connecting object has been inserted to achieve a stable electrical connection even with very small pitches of contacts and very thin walls of the housing.