Pluggable ONU Transceiver Integrated Bottom Shell Alignment
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Solution Overview
Problem
Conventional ONU transceiver modules face challenges in ensuring I/O pin alignment, preventing tilting, and maintaining a predetermined height above the host PCB, which increases assembly complexity and costs due to multiple separate components, and can weaken the module structure.
Innovation Solution
A pluggable ONU transceiver module design featuring integrated guiding features within the bottom shell to ensure correct I/O pin insertion and a single component bottom shell for positioning the top shell at a predetermined height, reducing assembly steps and enhancing structural robustness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate stepped guide pins and stabilizing ribs are used to ensure I/O pin alignment and prevent tilting, then alignment and stability are improved, but device complexity and assembly cost increase
Solution Approach 1:
The patent combines multiple separate guiding pins and stabilizing ribs into a single integrated bottom shell structure. The bottom shell includes integrated guiding features that provide both alignment guidance and tilting prevention functions that were previously achieved by multiple separate components, thereby reducing assembly complexity while maintaining reliability.
Solution Approach 2:
The bottom shell is designed to perform multiple functions simultaneously: it provides structural support, ensures I/O pin alignment through integrated guiding features, prevents tilting through its geometric design, and positions the module at the correct height. This multi-functional design eliminates the need for separate dedicated components for each function.
2Manufacturing precision
If multiple separate stepped guide pins are used to ensure I/O pin alignment, then alignment precision is improved, but manufacturing cost and assembly processes increase
Solution Approach 1:
The patent integrates the alignment guidance function into the bottom shell itself through molded-in guiding features rather than using separate stepped guide pins. This integration maintains precise alignment capability while eliminating multiple assembly steps required for installing separate guiding components.
Solution Approach 2:
The guiding features are pre-formed as integral parts of the bottom shell during molding, rather than being added as separate components during assembly. This preliminary formation of guiding features ensures precise I/O pin alignment is built into the structure from manufacturing, eliminating subsequent alignment adjustment steps.
3Reliability
If holes are formed in the module to receive stepped guiding pins, then I/O pin alignment is ensured, but the shell structure is weakened
Solution Approach 1:
The patent eliminates the need for separate guiding pins that require holes in the shell by integrating the guiding function directly into the bottom shell structure. This integration maintains I/O pin alignment capability while preserving the完整性 and strength of the shell structure without creating weak points from pin holes.
4Stability of the object's composition
If the module is raised to the same level as the protruding connector to prevent tilting, then stability is improved, but additional components and assembly steps are required
Solution Approach 1:
The patent integrates the tilting prevention function into the bottom shell through its geometric design and integrated guiding features, rather than using separate stabilizing ribs or support components. The bottom shell's structure itself provides the necessary stability and height positioning when inserted into the host device.
Solution Approach 2:
The bottom shell simultaneously provides structural support, I/O pin alignment guidance, tilting prevention, and height positioning functions. This multi-functionality eliminates the need for separate stabilizing components while maintaining module stability during insertion and operation.
Data Source
AI summary
A pluggable ONU transceiver module comprises a top shell, a bottom shell configured to mate with the top shell to form a cavity, and a PCB disposed within the cavity. A plurality of pins are coupled to the PCB and are configured to be inserted into a protruding socket of a host device through the bottom shell. The protruding socket is mounted on a PCB of the host device. The pluggable ONU transceiver module further comprises one or more guiding features integrated with the bottom shell and configured to ensure that the pins are inserted correctly into the protruding socket, and means for positioning the top shell at a predetermined height above the PCB of the host device to allow coupling of the top shell to a heatsink of the host device.