Shield Case Elastic Deformation for Connector Alignment

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Solution Overview

Problem

Existing connector modules face challenges in durability and positional alignment while maintaining high shielding performance, with issues related to absorption of positional displacement and impedance matching for high-frequency propagation.

Innovation Solution

A connector module design featuring a conductive shield case with elastic portions that deform to absorb vibrations and positional displacements, ensuring durable and precise alignment through elastic deformation and engagement with a tubular shell, while maintaining high shielding performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a flexible thin film member is used to fill the gap between the connector and the case, then positional displacement can be absorbed, but the strength of the connector is reduced

Engineering Contradiction:

Improvepositional displacement absorptionVSAvoidconnector strength

Core Design Contradiction:

Adaptability or versatilityVSStrength

Solution Approach 1:

The shield case is divided into a first member and a second member, with elastic pieces positioned between them. This segmentation allows the elastic pieces to independently deform and absorb positional displacement while maintaining the overall structural strength of the connector assembly.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Elastic pieces are strategically placed at specific locations between the first member and second member of the shield case. This local application of elasticity provides displacement absorption precisely where needed without compromising the overall strength of the connector structure.

Inventive Principle:

Principle #3Local quality

2Adaptability or versatility

If a tubular movable shell is made movable relative to the tubular outer shell, then fitting connection is possible with positional displacement, but repeated contacts due to vibration reduce durability

Engineering Contradiction:

Improvefitting connection with positional displacementVSAvoiddurability against vibration

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The elastic pieces are pre-installed between the first member and second member of the shield case to provide cushioning before vibration occurs. This beforehand cushioning absorbs vibration shocks and prevents repeated contacts, thereby improving durability while maintaining the movable connection capability.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

3Adaptability or versatility

If the tubular movable shell is made movable relative to the tubular outer shell, then positional displacement can be absorbed, but the distance between the shells cannot be fixed, making impedance matching difficult

Engineering Contradiction:

Improvepositional displacement absorptionVSAvoidimpedance matching precision

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The elastic pieces are designed with specific physical parameters (material properties, dimensions, elasticity coefficients) that allow them to deform within a controlled range. This parameter optimization enables the shield case members to move relative to each other for displacement absorption while maintaining a distance that ensures proper impedance matching for high-frequency signals.

Inventive Principle:

Principle #35Parameter changes

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 connector module achieves improved durability and easy position alignment with the connection target instrument while maintaining high shielding performance, effectively addressing the limitations of existing designs.

Implementation Method 1

the shield case including a first member having an elastic portion to come into contact with an outer circumferential portion of the tubular shell protruding from the housing

Methodology Applied

Scientific EffectElastic deformation: Elasticity

Data Source

PatentUS11515673B2Electrical connector module with shielding members engaging upon connection to a mating connector

Publication Date: 2022.11.29 HOSIDEN CORP

AI summary

Provided is a connector module that is highly durable and that also allows easy position alignment with a connection target instrument while maintaining high shielding performance. The connector module includes a connector case and a connector inserted in the connector case. The connector includes a contact, a holder, a conductive tubular shell, a housing and a conductive shield case. The shield case includes a first member having an elastic portion and a second member in the form of a bottomed tube. The first member forms an elastic piece contactable with the second member. Fixing of the connector case to a main body case via a fastener member causes, in the connector, elastic deformation of the elastic piece, resulting in decrease in a gap between the first member and the second member, consequently in establishment of electrical connection between the first member and the second member.