Optical Transceiver Conductive Resin Alignment
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Solution Overview
Problem
Existing optical transceivers face challenges in efficiently aligning and securely attaching optical modules within a housing due to manufacturing variations, leading to potential misalignment of optical axes and electromagnetic interference issues.
Innovation Solution
The optical transceiver design incorporates a conductive resin filled between the housing and optical receptacles/sleeves to accommodate deviations in module positions, ensuring secure attachment and reducing electromagnetic interference through conductive shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If rigid fixing methods are used to secure optical modules in housing, then mechanical strength is improved, but manufacturing precision deteriorates due to inability to accommodate positional deviations
Solution Approach 1:
The patent changes the physical state of the fixing material from rigid to viscous/fluid state. The viscous fluid filling material is injected into the housing to fill gaps between the optical module and housing, providing both mechanical support and positional adjustment capability. This parameter change allows the fixing material to adapt to manufacturing deviations while maintaining secure attachment.
Solution Approach 2:
The patent uses a composite approach by combining the optical module, housing, and viscous fluid filling material into an integrated assembly. The viscous fluid acts as both a cushioning medium and a fixing agent, creating a composite structure that accommodates manufacturing variations while maintaining mechanical strength and optical alignment.
2Reliability
If tight fitting is used to secure receptacles to housing, then reliability is improved, but ease of manufacture deteriorates due to alignment complexity
Solution Approach 1:
The patent introduces a viscous fluid filling material as an intermediary substance between the receptacles and housing. This intermediary material fills the gaps and accommodates alignment deviations, allowing receptacles to be securely attached without requiring precise pre-alignment during assembly. The viscous fluid acts as a buffer that maintains reliable attachment while simplifying the manufacturing process.
3Device complexity
If conventional fixing methods are used, then device complexity is reduced, but electromagnetic interference increases due to gaps between components
Solution Approach 1:
The patent makes the viscous fluid filling material serve multiple functions simultaneously: it acts as a cushioning medium for mechanical support, a fixing agent for secure attachment, and an electromagnetic shielding material to block interference. This multi-functionality eliminates the need for separate shielding structures, maintaining simple device architecture while effectively reducing electromagnetic interference.
Solution Approach 2:
The patent changes the electrical conductivity parameter of the filling material by using conductive viscous fluid. This parameter change enables the fluid to provide electromagnetic shielding in addition to its mechanical functions, blocking interference signals that would otherwise pass through gaps between components without adding complex shielding structures.
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
This solution allows for accurate alignment and secure fixation of optical modules despite manufacturing deviations, enhancing optical coupling efficiency and reducing electromagnetic interference, while maintaining mechanical strength and reliability under external loads.
Implementation Method 1
the first receptacle and the second receptacle are fixed to the housing via a conductive resin filled between an inner peripheral surface of the housing and outer peripheral surfaces of the first receptacle and the second receptacle
Implementation Method 2
a conductive resin filled between an inner peripheral surface of the housing and outer peripheral surfaces of the first receptacle and the second receptacle
Data Source
AI summary
An optical transceiver, attachable and detachable along a first direction with respect to an apparatus, includes an optical module having a first surface intersecting the first direction and first and second sleeves extending from the first surface in a direction of the optical transceiver, a housing extending along the first direction and accommodating the optical module, and first and second receptacles connected to the first and second sleeves and aligned according to deviations of the first and second sleeves on the first surface from first and second reference positions, respectively. An accommodating part on one end of the housing along the first direction accommodates the first and second receptacles which are fixed to the housing via a conductive resin filled between the housing and the first and second receptacles.