US 12,453,044 B2
Liquid cooling heat dissipation plate and liquid cooling electronic device
Qian Chen, Guangdong (CN); Fangyu Liu, Guangdong (CN); Yang Gao, Guangdong (CN); Yuefeng Wu, Guangdong (CN); and Haifeng Guo, Guangdong (CN)
Assigned to SHENZHEN MICROBT ELECTRONICS TECHNOLOGY CO., LTD., Guangdong (CN)
Appl. No. 18/280,839
Filed by SHENZHEN MICROBT ELECTRONICS TECHNOLOGY CO., LTD., Guangdong (CN)
PCT Filed Mar. 3, 2023, PCT No. PCT/CN2023/079516
§ 371(c)(1), (2) Date Sep. 7, 2023,
PCT Pub. No. WO2024/098592, PCT Pub. Date May 16, 2024.
Claims priority of application No. 202211395638.0 (CN), filed on Nov. 9, 2022.
Prior Publication US 2025/0040079 A1, Jan. 30, 2025
Int. Cl. H05K 7/20 (2006.01)
CPC H05K 7/20263 (2013.01) [H05K 7/20254 (2013.01); H05K 7/20272 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A liquid cooling heat dissipation plate, comprising:
a cooling plate unit, wherein the cooling plate unit comprises two opposite mounting surfaces and side walls between the two mounting surfaces, a liquid inlet and a liquid outlet are provided at the side walls, the liquid inlet is in connection with the liquid outlet through a penetrating channel, and the penetrating channel respectively penetrates the two mounting surfaces;
a fin unit; and
a seal plate unit,
wherein the penetrating channel comprises at least one first channel, the fin unit is lapped at positions on the two mounting surfaces corresponding to the same first channel, the seal plate unit is lapped at a position on the mounting surface corresponding to positions in the penetrating channel that are not covered by the fin unit, so that the penetrating channel between the liquid inlet and the liquid outlet forms a cooling liquid flow channel;
any two of the fin unit, the seal plate unit, and the mounting surface are fastened by friction welding,
the side walls comprise a second side wall that forms an included angle with an extending direction of the first channel, and the liquid inlet and the liquid outlet are provided at the same end of the second side wall in an extending direction of the second side wall, and
the seal plate unit comprises at least a first seal plate and a second seal plate, wherein the first seal plate is lapped at a position on the mounting surface corresponding to an adjacent turning channel, and the adjacent turning channel connects two adjacent first channels; and the second seal plate is lapped at a position on the mounting surface corresponding to a direct connection channel, and the direct connection channel is used to connect two first channels on two sides of the cooling plate unit or used to connect the first channel with the liquid inlet or the liquid outlet.