US 12,446,185 B2
Cold plate
Masahiro Matsuda, Tokyo (JP); Koichi Mashiko, Tokyo (JP); and Yoji Kawahara, Tokyo (JP)
Assigned to FUJIKURA LTD., Tokyo (JP)
Appl. No. 18/546,146
Filed by Fujikura Ltd., Tokyo (JP)
PCT Filed Jan. 21, 2022, PCT No. PCT/JP2022/002209
§ 371(c)(1), (2) Date Aug. 11, 2023,
PCT Pub. No. WO2022/269965, PCT Pub. Date Dec. 29, 2022.
Claims priority of application No. 2021-102878 (JP), filed on Jun. 22, 2021.
Prior Publication US 2024/0121912 A1, Apr. 11, 2024
Int. Cl. H05K 7/20 (2006.01)
CPC H05K 7/20254 (2013.01) [H05K 7/20263 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A cold plate comprising:
a metal base plate having:
a first surface,
a second surface on a side opposite the first surface, and
fins disposed in parallel on the first surface; and
a topped cylindrical resin cover covering the fins, wherein
the first surface has a recessed portion recessed toward the second surface, and
the topped cylindrical resin cover is heat-fused to the metal base plate on an inner surface of the recessed portion.