US Patent 10993352 Thermal transfer device for a pluggable module assembly

A pluggable module assembly includes a housing having a top wall, a bottom wall and sidewalls between the top wall and the bottom wall forming a cavity configured to hold an electrical component therein. The top wall has an opening above the cavity aligned with the electrical component receiving a thermal transfer device that is separate and discrete from the housing. The thermal transfer device transmits heat from the electrical component to fins separated by channels at an upper thermal interface. The upper thermal interface is exposed from above the housing for interfacing with an external heat sink for transferring heat from the thermal transfer device.