SFP Connector Rotating Locking Mechanism for Dense Packaging

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Solution Overview

Problem

The complexity and difficulty of attaching or detaching small form-factor pluggable (SFP) connectors from shielding cases increase with the miniaturization of connectors and higher receptacle connector density in electronic equipment, making the existing locking and unlocking mechanisms cumbersome.

Innovation Solution

A small form-factor pluggable connector design featuring a rotating member, fastening shaft, spring member, actuator, and U-shaped connecting member, which provides a convenient and fast locking and unlocking mechanism through a rotating and spring-actuated system, allowing efficient engagement and disengagement with a shielding case.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the connector size is reduced and receptacle density is increased, then the miniaturization and density requirements are met, but the locking and unlocking mechanism becomes more complex and harder to operate

Engineering Contradiction:
Improveconnector sizeVSAvoidlocking and unlocking operation
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The locking member is designed to rotate between locked and unlocked positions, transforming the static locking mechanism into a dynamic one. This rotation enables simple operational movement while maintaining secure locking, resolving the contradiction between miniaturization and ease of operation

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The spring member automatically restores the locking member to the locked position after insertion, eliminating the need for manual locking operations. This self-service mechanism simplifies user interaction while maintaining secure connection in miniaturized form factor

Inventive Principle:
Principle #25Self-service

2Reliability

If a traditional locking mechanism is used, then connection safety is ensured, but the mechanism becomes complex and difficult to operate

Engineering Contradiction:
Improveconnection safetyVSAvoidlocking and unlocking mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The locking mechanism is segmented into distinct functional components: a locking member with latching arm for engagement, a spring member for automatic restoration, and an actuator for triggering the unlock sequence. This segmentation allows each component to perform its function simply, reducing overall complexity while maintaining reliability

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The complex multi-step locking mechanism is replaced by extracting only the essential functions: a rotating locking member for position change and a spring for automatic restoration. This extraction eliminates unnecessary complexity while preserving connection safety

Inventive Principle:
Principle #2Taking out (Extraction)

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 proposed connector ensures efficient locking and unlocking operations, simplifying the connection and disconnection process, making it convenient and fast, even in densely packed electronic equipment environments.

Implementation Method 1

The spring member is used to provide an elastic force for locking and unlocking. When the latching arm is forced to rotate downward under an external force, the spring member is compressed. And when the external force is removed, the spring member is restored to an initial state and lifts the latching arm.

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS9423575B2Small form-factor pluggable connector
Publication Date: 2016.08.23 BIZLINK ELECTRONICS KUNSHAN CO LTD
  • US9423575B2 patent drawing
  • US9423575B2 patent drawing
  • US9423575B2 patent drawing

AI summary

A small form-factor pluggable connector is disclosed. A locking and unlocking mechanism of the SFP connector includes a rotating member rotatable mounted on a cover, a fastening shaft pivoting the rotating member on the cover, a spring member providing an elastic force for locking and unlocking, an actuator slideably mounted on the cover, and an U-shaped connecting member connecting the rotating member and the actuator. The spring member is located under a latching arm of the rotating member. When the latching arm is forced to rotate downward under an external force, the spring member is compressed. When the external force is removed, the spring member can be restored to its original state and push the latching arm upward. The SFP connector of the present invention is easy to be operated and can efficiently realize the locking and unlocking functions.