US 12,082,369 B2
Heat sink and sink manufacturing method
Masayoshi Tamura, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Appl. No. 17/762,249
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Nov. 4, 2020, PCT No. PCT/JP2020/041164
§ 371(c)(1), (2) Date Mar. 21, 2022,
PCT Pub. No. WO2021/111791, PCT Pub. Date Jun. 10, 2021.
Claims priority of application No. 2019-221661 (JP), filed on Dec. 6, 2019.
Prior Publication US 2022/0346270 A1, Oct. 27, 2022
Int. Cl. H05K 7/20 (2006.01); F28D 1/047 (2006.01); F28F 13/12 (2006.01); H01L 23/473 (2006.01); F28D 7/02 (2006.01)
CPC H05K 7/20254 (2013.01) [F28F 13/12 (2013.01); H01L 23/473 (2013.01); H05K 7/20927 (2013.01); F28D 1/0472 (2013.01); F28D 7/024 (2013.01); Y10T 29/49353 (2015.01)] 19 Claims
OG exemplary drawing
 
1. A heat sink comprising:
a main body in contact with at least one heat emitter; and
a plurality of flow paths disposed inside the main body and extending in a shape of helices, the plurality of flow paths being configured to convey refrigerant, wherein
the plurality of flow paths are arranged such that each central axis of the helices are adjacent to another of the central axes of the helices, and
each two of the plurality of flow paths of which the central axes of the helices are adjacent to each other are intertwined with each other so that a first flow path of the two flow paths and a second flow path of the two flow paths cross over on alternate sides of each other to form a woven shape.