US 12,114,467 B2
Heatsink with increased air flow
Magnus Kallmark, Kista (SE); Fredrik Ohlsson, Kista (SE); Vadim Tsoi, Kista (SE); and Reine Granstrom, Kista (SE)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Jul. 22, 2022, as Appl. No. 17/871,660.
Application 17/871,660 is a continuation of application No. PCT/EP2020/051807, filed on Jan. 24, 2020.
Prior Publication US 2022/0361372 A1, Nov. 10, 2022
Int. Cl. H05K 7/20 (2006.01); H01L 23/367 (2006.01); H01L 23/467 (2006.01)
CPC H05K 7/20409 (2013.01) [H01L 23/3672 (2013.01); H01L 23/467 (2013.01); F28F 2215/04 (2013.01); H05K 7/20127 (2013.01); H05K 7/20509 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A heatsink attachable or attached to one or more electrical devices for transferring heat from the one or more electrical devices to a heat transfer medium, the heatsink comprising a plurality of fins arranged on a frontside of the heatsink,
wherein the frontside is bordered by a top end, a bottom end, a first side edge and a second side edge;
wherein the plurality of fins comprises:
a first group of fins, and
a second group of fins;
wherein fins in the first group of fins extend in a first planar direction of the frontside; and,
wherein fins in the second group of fins extend in at least a second planar direction of the frontside that is angled in relation to the first planar direction,
wherein the second group of fins comprises:
a first subgroup of fins that extend from the first group of fins to the first side edge and the top end, and
a second subgroup of fins that extend from the first group of fins to the second side edge and the top end;
wherein the first group of fins comprises fins extending from the top end to the bottom end and arranged on the frontside in a planar direction parallel to the first side edge and the second side edge,
wherein the first group of fins further comprises a third subgroup of fins and a fourth subgroup of fins that are disposed on opposing sides of the fins extending from the top end to the bottom end,
wherein the third subgroup and the fourth subgroup each includes at least one fin that runs along one of either the first side edge and the second side edge, and
wherein the fins of the third subgroup of fins and fourth subgroup of fins only partially extend from the bottom end to an ending point before the top end.