US 12,279,399 B2
Thermal management of high capacity optics in dense arrangements
M. Baris Dogruoz, Campbell, CA (US); Mandy Hin Lam, Fremont, CA (US); Mark Nowell, Ontario (CA); and Rakesh Chopra, Menlo Park, CA (US)
Assigned to CISCO TECHNOLOGY, INC., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Oct. 28, 2022, as Appl. No. 17/976,276.
Application 17/976,276 is a division of application No. 16/928,279, filed on Jul. 14, 2020, granted, now 11,523,541.
Claims priority of provisional application 62/984,816, filed on Mar. 4, 2020.
Prior Publication US 2023/0124658 A1, Apr. 20, 2023
Int. Cl. H05K 7/20 (2006.01); F28F 13/00 (2006.01); G02B 6/42 (2006.01); H01R 13/514 (2006.01)
CPC H05K 7/20636 (2013.01) [F28F 13/00 (2013.01); G02B 6/4269 (2013.01); G02B 6/4278 (2013.01); H01R 13/514 (2013.01); H05K 7/20254 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of cooling pluggable modules received in a cage, the method comprising:
directing a fluid to an inlet of a first plate of a cold plate arrangement;
flowing the fluid through a first plurality of fin groups of the first plate, wherein a first fin-density of each fin group of the first plurality of fin groups corresponds to a first heat source;
flowing the fluid through a second plurality of fin groups of a second plate of the cold plate arrangement, wherein a second fin-density of each fin group of the second plurality of fin groups corresponds to a second heat source that differs from the first heat source;
flowing the fluid through an outlet of the second plate of the cold plate arrangement;
directing an additional fluid to an additional inlet of the first plate of the cold plate arrangement;
flowing the additional fluid through a third plurality of fin groups of the first plate;
flowing the additional fluid through a fourth plurality of fin groups of the second plate; and
flowing the additional fluid through an additional outlet of the second plate.