Optical Module Package Mechanical Fiber Holding

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Solution Overview

Problem

Conventional optical module packages require significant time and effort for manufacture due to the use of adhesives or resins to fix the fiber unit to the housing, and the process of inserting optical fibers into tubular members, which complicates the manufacturing process.

Innovation Solution

An optical module package design that uses a unit holding member with locking parts to securely hold the fiber unit within the housing without the need for adhesives or resins, allowing the optical fiber to extend along the axial core direction, eliminating the need for fiber insertion into tubular members.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If adhesive or resin is used to fix the fiber unit to the housing, then the fiber unit can be securely fixed, but the manufacturing time and effort increase due to injection processes and curing requirements

Engineering Contradiction:
Improvefixing strengthVSAvoidmanufacturing time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent extracts and eliminates the adhesive or resin from the fixing mechanism. Instead of using chemical bonding agents, the invention employs a mechanical structure where the housing itself forms insertion holes that directly receive and hold the optical fibers, removing the need for adhesive injection and curing processes entirely

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces the chemical bonding system (adhesive/resin) with a mechanical fixing system. The housing includes insertion holes with specific dimensions and positions that mechanically hold the optical fibers through friction and geometric constraints, substituting chemical bonding with mechanical retention

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If adhesive is used to fix the fiber unit, then secure bonding is achieved, but manufacturing complexity increases due to need to prevent unintended adhesion and curing processes

Engineering Contradiction:
Improvebonding strengthVSAvoidmanufacturing process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent removes the adhesive application process entirely from the manufacturing workflow. By designing the housing with integrated insertion holes that mechanically retain the fibers, it eliminates the need for adhesive dispensing equipment, curing ovens, and the complex process control required to prevent unintended adhesion to other components

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The housing structure provides self-fixing functionality through its geometric design. The insertion holes are formed with dimensions and positions that automatically secure the optical fibers upon insertion, without requiring external adhesive application or curing processes, making the system self-sufficient for the fixing function

Inventive Principle:
Principle #25Self-service

3Manufacturing precision

If optical fiber is inserted into tubular member, then proper positioning is achieved, but manufacturing effort and time increase due to insertion work

Engineering Contradiction:
Improvefiber positioning accuracyVSAvoidmanufacturing efficiency
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The patent merges the housing structure with the fiber retention function by integrating insertion holes directly into the housing body. This eliminates the separate tubular member that would otherwise require fiber insertion, combining the structural support and fiber positioning functions into a single integrated component

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

Instead of inserting the fiber into a separate tubular member as in conventional designs, the patent inverts the approach by having the housing itself form the retention structure through precisely positioned insertion holes. The fiber is held by the housing's inherent geometry rather than by a separate inserted component

Inventive Principle:
Principle #13The other way round (Inversion)

Data Source

PatentUS8992096B2Optical module package
Publication Date: 2015.03.31 WELLS FARGO BANK NA
  • US8992096B2 patent drawing
  • US8992096B2 patent drawing
  • US8992096B2 patent drawing

AI summary

An optical module package is provided, the optical module package including a housing main body, a cover body, first and second holding members, and a fiber unit. The first and second holding members may form, inside thereof, a unit accommodating part according to the outer size of a fiber unit in a direct opposing state. The housing main body has locking projections set an arrangement interval between two opposing surfaces of outer surface of the first and second holding members arranged to oppose each other, and a space sandwiched between locking projections is set as an accommodating space for the first and second holding members.