US 12,253,313 B2
Heat dissipation device for multipoint heat source
Cheng-Chien Wan, Tainan (TW); Cheng-Rui Wan, Tainan (TW); Chun-Hsien Su, Tainan (TW); Hui-Fen Huang, Tainan (TW); Fong Jou Tu, Tainan (TW); Chi Cheng Chen, Tainan (TW); and Chuan Meng Wang, Tainan (TW)
Assigned to MAN ZAI INDUSTRIAL CO., LTD., Tainan (TW)
Filed by Man Zai Industrial CO., LTD., Tainan (TW)
Filed on Jun. 30, 2022, as Appl. No. 17/854,465.
Claims priority of application No. 111112880 (TW), filed on Apr. 1, 2022.
Prior Publication US 2023/0314088 A1, Oct. 5, 2023
Int. Cl. F28D 15/02 (2006.01); F28D 15/04 (2006.01); H05K 7/20 (2006.01)
CPC F28D 15/0266 (2013.01) [F28D 15/0233 (2013.01); F28D 15/04 (2013.01); H05K 7/20336 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A heat dissipation device for a multipoint heat source, comprising:
an evaporator unit comprising a multi-channel duct, a plurality of separated channels provided in the multi-channel duct, a first communication opening, and a second communication opening, wherein the communication openings are provided at two lateral narrow sides of the multi-channel duct respectively; and
a condenser unit comprising a plurality of first tubes arranged in a parallel manner in a first direction, a second tube provided at a first end of the first tubes, and a third tube provided at a second end of the first tubes, wherein the second tube has a bottom side provided with a first connection channel in communication with the first communication opening, and the third tube has a bottom side provided with a second connection channel in communication with the second communication opening;
wherein the narrow sides of the multi-channel duct face the first tubes and are parallel or generally parallel to the first tubes, and the multi-channel duct has a wide side attached to the multipoint heat source in order for a heat conduction medium to be circulated through the evaporator unit and the condenser unit while alternating between a liquid phase and a gaseous phase;
wherein a first confluence channel is provided on one side of the separated channels and is in communication with the first communication opening, and a second confluence channel is provided on an opposite side of the separated channels and is in communication with the second communication opening.