Small Form Factor Transceiver Heat Sink Grooves for Adhesive Containment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing OSFP transceiver modules face difficulties in securely fixing the heat sink to the cover without using aluminum extrusion, leading to potential adhesive leakage and compromised appearance.
Innovation Solution
Incorporating grooves and stoppers on the cover to accommodate excessive adhesive, preventing it from being squeezed out and maintaining a secure attachment between the cover and heat sink.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the heat sink and cover are not formed by aluminum extrusion, then manufacturing flexibility is improved, but the ability to securely fix the heat sink to the cover deteriorates
Solution Approach 1:
The cover is segmented with grooves that divide the adhesive application area into multiple zones. This segmentation allows the adhesive to be contained within specific regions, preventing excessive adhesive from spreading and ensuring secure fixation even when not using aluminum extrusion.
Solution Approach 2:
Adhesive is introduced as an intermediary substance between the heat sink and cover to create a secure bond. The grooves act as intermediaries to control and contain this adhesive, ensuring it performs its bonding function without causing appearance defects from leakage.
2Ease of operation
If adhesive is used to fix the heat sink to the cover, then ease of assembly is improved, but adhesive leakage occurs compromising appearance
Solution Approach 1:
The grooves convert the harmful effect of excessive adhesive (which would leak and spoil appearance) into a beneficial feature by providing designated spaces for the adhesive to occupy. The adhesive that would otherwise be a defect becomes a controlled element that ensures bonding while maintaining appearance.
Solution Approach 2:
The grooves create local quality variations on the cover surface, providing specific zones with different functions: areas with grooves accommodate and contain adhesive, while other areas maintain smooth appearance. This local differentiation allows adhesive to be present without compromising overall appearance.
3Strength
If excessive adhesive is used to ensure secure bonding, then bonding strength is improved, but adhesive is squeezed out affecting appearance
Solution Approach 1:
The grooves provide beforehand cushioning spaces that accommodate excessive adhesive before it can be squeezed out during assembly. These pre-designed cavities act as buffers that absorb the excess adhesive, preventing it from reaching the exterior surface and compromising appearance.
Data Source
AI summary
A small form factor transceiver module includes a base, a printed circuit board, a cover, a heatsink and an adhesive. The printed circuit board has a connecting terminal. The printed circuit board is sandwiched between the base and the cover. The cover has at least one first groove and a mounting surface away from the printed circuit board. The first groove is located on the mounting surface. The adhesive is connected between the mounting surface and the heatsink. The first groove is configured to accommodate an excessive portion of the adhesive.