US 11,903,167 B2
Vapor chamber with condensate flow paths disposed on wall parts
Shinichiro Takahashi, Tokyo-to (JP); Takayuki Ota, Tokyo-to (JP); Kazunori Oda, Tokyo-to (JP); Toshihiko Takeda, Tokyo-to (JP); Kiyotaka Takematsu, Tokyo-to (JP); Terutoshi Momose, Tokyo-to (JP); and Yoko Nakamura, Tokyo-to (JP)
Assigned to DAI NIPPON PRINTING CO., LTD., Tokyo (JP)
Appl. No. 17/059,301
Filed by DAI NIPPON PRINTING CO., LTD., Tokyo (JP)
PCT Filed May 30, 2019, PCT No. PCT/JP2019/021609
§ 371(c)(1), (2) Date Nov. 27, 2020,
PCT Pub. No. WO2019/230911, PCT Pub. Date Dec. 5, 2019.
Claims priority of application No. 2018-103620 (JP), filed on May 30, 2018; and application No. 2018-103633 (JP), filed on May 30, 2018.
Prior Publication US 2021/0168969 A1, Jun. 3, 2021
Int. Cl. F28D 15/00 (2006.01); H05K 7/20 (2006.01); F28D 15/02 (2006.01)
CPC H05K 7/20318 (2013.01) [F28D 15/0233 (2013.01); F28D 15/0266 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A vapor chamber in which an enclosed space is formed, and a working fluid is sealed in the enclosed space, the enclosed space comprising:
a plurality of condensate flow paths through which the working fluid in a condensing state flows, the condensate flow paths extending in parallel to each other; and
a plurality of vapor flow paths through which the working fluid in a vaporizing state flows, the vapor flow paths extending in parallel to each other, wherein
at least one of the condensate flow paths is between adjacent ones of the vapor flow paths in a plan view,
wall parts that separate the vapor flow paths and the condensate flow paths each comprise a plurality of communicating opening parts that are openings via which the vapor flow paths and the condensate flow paths communicate, wherein the wall parts adjoin one of upper and lower inner faces of the vapor chamber, and the condensate flow paths are also on the one inner face, and
pitches for the communicating opening parts vary in an extending direction of the vapor flow paths and the condensate flow paths.