EMI Shielding Component With Guide Opening For Optical Fiber Adapter

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Solution Overview

Problem

Conventional optical fiber adapter modules lack effective EMI shielding protection at the optical fiber extension aperture due to the difficulty in fitting a shielding component around large fiber stubs, which compromises EMI protection when the shielding component is positioned perpendicular to the fiber extension direction.

Innovation Solution

An EMI shielding component with a metallic shielding body featuring receiving holes and guide openings, where the guide openings are narrower than the receiving holes, allowing the shielding component to be inserted laterally and securely around the fiber stub, eliminating the need for an optical fiber receptacle and enabling larger receiving holes for improved protection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a shielding component is positioned perpendicular to the optical fiber extension direction to provide EMI protection, then EMI protection is improved, but the shielding component cannot be properly fitted around large fiber stubs at the aperture

Engineering Contradiction:

ImproveEMI protectionVSAvoidfitting difficulty

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

Instead of fitting the shielding component from the front end of the fiber stub (conventional approach), the patent inverts the fitting direction by inserting the shielding component from the rear end of the fiber stub through the optical fiber extension aperture. This inversion allows the shielding component to be properly positioned around the fiber stub without interference from the large front end connection.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The patent changes the fitting dimension by introducing a lateral insertion path through the optical fiber extension aperture. Rather than approaching from the front or back along the fiber axis, the shielding component is inserted laterally through the aperture, providing a new dimensional approach that avoids the fitting difficulty caused by the large front end of the fiber stub.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Ease of operation

If a through-hole is made larger to facilitate fitting the shielding component around the fiber stub, then ease of operation is improved, but EMI protection is greatly reduced

Engineering Contradiction:

Improvefitting easeVSAvoidEMI protection

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent segments the opening into two distinct parts: a large through-hole for receiving the fiber stub and a smaller guide opening for inserting the shielding component. This segmentation allows each opening to serve its specific function optimally - the large through-hole maintains EMI protection while the small guide opening facilitates easy fitting of the shielding component.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by providing different opening sizes at different locations of the shielding component. The through-hole has a large diameter to accommodate the fiber stub, while the guide opening has a small diameter optimized for shielding component insertion. Each local opening is tailored to its specific functional requirement, achieving both ease of operation and EMI protection.

Inventive Principle:

Principle #3Local quality

3Object-affected harmful factors

If the receiving hole diameter is maximized to improve EMI protection, then EMI shielding effectiveness is improved, but the mounting process becomes more difficult

Engineering Contradiction:

ImproveEMI shielding effectivenessVSAvoidmounting difficulty

Core Design Contradiction:

Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The guide opening acts as an intermediary structure that mediates between the large receiving hole and the shielding component. It provides a controlled insertion path that guides the shielding component into the correct position within the large receiving hole, making the mounting process easier while maintaining the large hole diameter for optimal EMI protection.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20240345346A1EMI shielding component, optical fiber adapter module having the same, and method of assembling the optical fiber adapter module

Publication Date: 2024.10.17 WELLS FARGO BANK NA

AI summary

An EMI shielding component includes: a metallic shielding body having at least one receiving hole, wherein a guide opening is disposed at a lateral edge of the metallic shielding body, is laterally in communication with the receiving hole, and has a width less than the diameter of the receiving hole. An optical fiber adapter module having the EMI shielding component and a method of assembling the optical fiber adapter module are also provided. Therefore, the EMI shielding component can be easily mounted in place, and EMI protection thus achieved is effective.