Convection cooling of a pluggable optical module in a printed circuit board envelope
AssigneeCiena Corporation
InventorsPeter Ajersch, Behzad Mohajer
Life of this patent
Estimating the term…
Abstract
A convection cooling assembly for a pluggable optical module (POM), the convection cooling assembly including: a printed circuit board (PCB) assembly; and a POM cage coupled to the PCB assembly and adapted to receive a POM adjacent to the PCB assembly; where the PCB assembly defines a cutout or a recess within the POM cage and adapted to be disposed adjacent to a surface of the POM when the POM is received within the POM cage. The cutout or the recess includes a main channel and one or more side channels disposed orthogonal or at an angle to the main channel.
Claims18
A convection cooling assembly for a pluggable optical module, the convection cooling assembly comprising:
- a printed circuit board assembly;
- a pluggable optical module cage coupled to the printed circuit board assembly and adapted to receive the pluggable optical module adjacent to the printed circuit board assembly;
- wherein the printed circuit board assembly defines a cutout or a recess open to an edge of the printed circuit board assembly and centered within a footprint of the pluggable optical module cage along the edge of the printed circuit board assembly and adapted to be disposed adjacent to a surface of the pluggable optical module when the pluggable optical module is received within the pluggable optical module cage;
- and
- a heatsink disposed within the cutout or the recess and adapted to be thermally coupled to the pluggable optical module when the pluggable optical module is received within the pluggable optical module cage, wherein fins of the heatsink are constrained within an envelope defined by the cutout or the recess and do not extend beyond the envelope opposite the pluggable optical module cage.
A network element comprising:
- a pluggable optical module;
- a faceplate;
- a printed circuit board assembly disposed orthogonal to the faceplate;
- a pluggable optical module cage coupled to the printed circuit board assembly and adapted to receive the pluggable optical module adjacent to the printed circuit board assembly;
- wherein the printed circuit board assembly defines a cutout or a recess open to an edge of the printed circuit board assembly and centered within a footprint of the pluggable optical module cage along the edge of the printed circuit board assembly and adapted to be disposed adjacent to a surface of the pluggable optical module when the pluggable optical module is received within the pluggable optical module cage;
- and
- wherein the faceplate defines an opening aligned with the cutout or the recess;
- and
- a heatsink disposed within the cutout or the recess and thermally coupled to the pluggable optical module when the pluggable optical module is received within the pluggable optical module cage, wherein fins of the heatsink are constrained within an envelope defined by the cutout or the recess and do not extend beyond the envelope opposite the pluggable optical module cage.
A convection cooling assembly for a pluggable optical module, the convection cooling assembly comprising:
- a printed circuit board assembly;
- and
- a pluggable optical module cage coupled to the printed circuit board assembly and adapted to receive the pluggable optical module adjacent to the printed circuit board assembly;
- wherein the printed circuit board assembly defines a cutout or a recess open to an edge of the printed circuit board assembly and centered within a footprint of the pluggable optical module cage along the edge of the printed circuit board assembly and adapted to be disposed adjacent to a surface of the pluggable optical module when the pluggable optical module is received within the pluggable optical module cage;
- a faceplate disposed orthogonal to the printed circuit board assembly and defining an opening aligned with the cutout or the recess;
- and
- a jet impingement device disposed within the cutout or the recess and adapted to receive the airflow through the opening defined by the faceplate and direct the airflow to the surface of the pluggable optical module.
Dependencies are inferred from the claim text.