US 12,262,503 B1
Heat dissipation device and server
Bin Zong, Jiangsu (CN)
Assigned to SUZHOU METABRAIN INTELLIGENT TECHNOLOGY CO., LTD., Jiangsu (CN)
Appl. No. 18/846,241
Filed by SUZHOU METABRAIN INTELLIGENT TECHNOLOGY CO., LTD., Jiangsu (CN)
PCT Filed Jun. 20, 2023, PCT No. PCT/CN2023/101431
§ 371(c)(1), (2) Date Sep. 11, 2024,
PCT Pub. No. WO2024/119767, PCT Pub. Date Jun. 13, 2024.
Claims priority of application No. 202211550247.1 (CN), filed on Dec. 5, 2022.
Int. Cl. H05K 7/20 (2006.01)
CPC H05K 7/20145 (2013.01) [H05K 7/20727 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A heat dissipating device, wherein the heat dissipating device comprises a front-placed air duct and a rear-placed air duct that are sequentially arranged in a direction of a heat dissipating gas flow of the heat dissipating device, and the rear-placed air duct and the front-placed air duct are communicated;
the front-placed air duct comprises a plurality of front-placed air sub-ducts, a plurality of first heat dissipating elements and second heat dissipating elements are provided inside the front-placed air duct, the first heat dissipating elements and the second heat dissipating elements are located in different instances of the front-placed air sub-ducts, a heat-dissipation amount of the first heat dissipating elements within a unit time is greater than a heat-dissipation amount of the second heat dissipating elements within the unit time, a blocking plate is provided within the front-placed air sub-duct corresponding to at least one of the second heat dissipating elements, the blocking plate has different specifications, and the blocking plates of different specifications have unequal cross-sectional areas inside the corresponding front-placed air sub-ducts; and
a third heat dissipating element is provided inside the rear-placed air duct, the front-placed air sub-ducts that are closest to the third heat dissipating element are a first air sub-duct, a second air sub-duct and a third air sub-duct, a flow guiding hood is provided between the first air sub-duct, the second air sub-duct and the third air sub-duct on one hand and the rear-placed air duct on the other hand, the flow guiding hood comprises a flow guiding plate and a flow directing plate, the flow directing plate comprises a flow directing partition plate and a flow directing through plate, the heat dissipating gas flows in the first air sub-duct and the second air sub-duct are converged by the flow guiding plate and subsequently flow toward the third heat dissipating element in the rear-placed air duct via the flow directing through plate, and the heat dissipating gas flow of the third air sub-duct passes through the flow guiding plate, is diverted by the first air sub-duct and the second air sub-duct, and subsequently leaves the third heat dissipating element via the flow directing partition plate.