Optical Module Pressing Jig for Signal Leakage Prevention

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Solution Overview

Problem

Existing optical communication modules face challenges in stabilizing the connection of receptacles to chassis, leading to high-frequency-wave signal leakage and inefficient assembly operations due to inadequate fixing methods.

Innovation Solution

An optical communication module with a pressing jig that includes an engage portion and a projection portion, where the jig latches with the chassis to securely fix the receptacle, preventing high-frequency-wave signal leakage by pressing the projection portion onto the chassis.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the receptacle is fixed to the chassis using only fixing jigs in a vertical direction, then the assembly operation is simplified, but high-frequency-wave signal leakage occurs from the connection portion

Engineering Contradiction:

Improveassembly operationVSAvoidhigh-frequency-wave signal leakage

Core Design Contradiction:

Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The fixing jig is divided into multiple functional parts: pressing portions that apply downward force on the receptacle, and engage portions that latch with the chassis. This segmentation allows the single fixing jig to simultaneously achieve both mechanical fixation and signal leakage prevention through distributed contact points.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The fixing jig combines multiple functions into a single component: it provides vertical pressing force to secure the receptacle, prevents signal leakage through contact with the chassis, and enables easy attachment and detachment. This merging eliminates the need for separate fixing mechanisms and adhesive agents.

Inventive Principle:

Principle #5Merging (Combining)

2Stability of the object's composition

If the receptacle is fixed to the chassis with adhesive agent, then the connection is stable, but the assembly operation efficiency is degraded and attach/detach becomes difficult

Engineering Contradiction:

Improveconnection stabilityVSAvoidassembly operation efficiency

Core Design Contradiction:

Stability of the object's compositionVSProductivity

Solution Approach 1:

The adhesive bonding mechanism is replaced with a mechanical fixing system using the pressing jig. The jig applies downward force through pressing portions and secures the receptacle through engage portions that latch with the chassis, enabling stable connection without adhesive while maintaining assembly efficiency and ease of detachment.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Stability of the object's composition

If the receptacle is fixed to the chassis with adhesive agent, then the connection is stable, but attach and detach operations become difficult

Engineering Contradiction:

Improveconnection stabilityVSAvoidattach and detach ease

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The fixing system transitions from a static adhesive bond to a dynamic mechanical connection. The engage portions can be easily engaged and disengaged by operating the pressing jig, allowing the receptacle to be securely fixed during operation while enabling quick attachment and detachment when needed, without the permanence of adhesive bonding.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS7604418B2Optical communication module and optical communication module holder

Publication Date: 2009.10.20 SUMITOMO ELECTRIC DEVICE INNOVATIONS

AI summary

An optical communication module includes a receptacle, a chassis and a pressing jig. The receptacle has a photonic device therein and a projection portion. The chassis houses the receptacle. The pressing jig has an engage portion. The engage portion is latched with the chassis with the pressing jig pressing the projection portion of the receptacle to the chassis.