US 12,405,066 B2
Vapor chamber and heat dissipating device
Kai Meng, Nanchang (CN); Zhongshang Dou, Nanchang (CN); and Jing Gao, Nanchang (CN)
Assigned to JIANGXI XINFEI NEW MATERIAL CO., LTD, Nanchang (CN)
Filed by JIANGXI XINFEI NEW MATERIAL CO., LTD, Nanchang (CN)
Filed on Apr. 18, 2023, as Appl. No. 18/136,289.
Application 18/136,289 is a continuation of application No. PCT/CN2020/121852, filed on Oct. 19, 2020.
Prior Publication US 2023/0258412 A1, Aug. 17, 2023
Int. Cl. F28D 15/04 (2006.01); F28D 15/02 (2006.01); F28D 21/00 (2006.01)
CPC F28D 15/046 (2013.01) [F28D 15/0233 (2013.01); F28D 2021/0029 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A vapor chamber, comprising:
a first cover plate, and
a second cover plate;
wherein the first cover plate defines a first side; support portions are disposed on the first side of the first cover plate at intervals; gaps between the support portions are communicated with each other to form a heat dissipating cavity; the gaps are configured to receive vaporized liquid, and the support portions are configured to liquefy the vaporized liquid into liquid;
wherein the second cover plate defines a second side; the second side of the second cover plate is opposite to the first side of the first cover plate; an edge of the second side of the second cover plate is connected with and sealed with an edge of the first side of the first cover plate; the second side of the second cover plate defines capillary grooves; nanoparticles are accumulated on a groove wall of each of the capillary grooves; the nanoparticles are hydrophilic; gaps between the nanoparticles of each of the capillary grooves are communicated; the gaps between the nanoparticles of each of the capillary grooves are configured to receive the liquid formed from and flowing from the support portions of the first cover plate; one end, close to the second cover plate, of each of the support portions abuts against the second side of the second cover plate; each of the capillary grooves is communicated with the heat dissipating cavity.