US 12,292,674 B2
Heat dissipation module and projection device
Pei-Rong Wu, Hsin-Chu (TW); and Shi-Wen Lin, Hsin-Chu (TW)
Assigned to Coretronic Corporation, Hsin-Chu (TW)
Filed by Coretronic Corporation, Hsin-Chu (TW)
Filed on Nov. 23, 2021, as Appl. No. 17/534,416.
Claims priority of application No. 202022824630.4 (CN), filed on Nov. 30, 2020.
Prior Publication US 2022/0171263 A1, Jun. 2, 2022
Int. Cl. G03B 21/16 (2006.01); G02B 6/42 (2006.01); H05K 7/20 (2006.01)
CPC G03B 21/16 (2013.01) [G02B 6/4269 (2013.01); H05K 7/20136 (2013.01); H05K 7/20263 (2013.01); H05K 7/20272 (2013.01); H05K 7/2039 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A heat dissipation module, configured for heat dissipation of at least one first heat source and at least one second heat source of a projection device, and comprising a first heat sink, a second heat sink, a first pipe, and a second pipe, wherein
the first heat sink and the at least one first heat source are connected to each other through the first pipe to form a first loop, so that a liquid medium flowing in the first pipe exchanges heat generated from the at least one first heat source and flows through the first heat sink for circulating heat dissipation; and
the second heat sink and the at least one second heat source are connected to each other through the second pipe to form a second loop, so that a liquid medium flowing in the second pipe exchanges heat generated from the at least one second heat source and flows through the second heat sink for circulating heat dissipation,
wherein the first loop and the second loop are independent of each other,
wherein the heat dissipation module meets at least one of following conditions:
a first operating temperature of the at least one first heat source is less than a second operating temperature of the at least one second heat source;
a total heat amount generated by the at least one first heat source is less than a total heat amount generated by the at least one second heat source;
a temperature increase rate of the liquid medium in the first pipe is lower than a temperature increase rate of the liquid medium in the second pipe; and
a first temperature of the liquid medium in the first pipe is less than a second temperature of the liquid medium in the second pipe.