公开(公告)号：US20200049418A1

公开(公告)日：2020-02-13

申请号：US16660440

申请日：2019-10-22

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Kuang Yu CHU ,  Masaaki YAMAMOTO ,  Hung Wei TSENG ,  Masahiro MEGURO ,  Masato WATANABE

IPC: F28D15/02 ,  H01L23/427

Abstract: Provided is a heat sink where the formation of a boundary layer on surfaces of heat radiating fins is suppressed so that portions other than on the windward side along the cooling air flow can also exhibit excellent heat radiation property.The heat sink includes: a base plate; a first heat radiating fin thermally connected to the base plate; and a second heat radiating fin disposed adjacently to a side end portion of the first heat radiating fin, and thermally connected to the base plate, wherein a surface of the first heat radiating fin is not parallel to a surface of the second heat radiating fin, and at least one of the second heat radiating fins is disposed at a position lower than at least one of the first heat radiating fins in a vertical direction with respect to a front surface of the base plate.

公开(公告)号：US20210010761A1

公开(公告)日：2021-01-14

申请号：US17035509

申请日：2020-09-28

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Masato WATANABE ,  Masahiro MEGURO ,  Hiroshi SAKAI ,  Yasuhiro UCHIMURA ,  Shuta HIKICHI

IPC: F28F3/04 ,  F28D15/02

Abstract: The heat sink includes a radiation fin extending in a vertical direction from a heat-receiving unit, in which the radiation fin includes a notched portion in which a tip end side corner of the radiation fin is retracted inward in a main surface direction of the radiation fin with respect to a virtual rectangle or a virtual square formed of a side of the radiation fin on the heat-receiving unit side viewed from the main surface side, a first side extending from both ends of the side on the heat-receiving unit side in a direction orthogonal to the side on the heat-receiving unit side and a second side formed by extending a linear portion on the side of the radiation fin on a tip end side facing the side on the heat-receiving unit side to the first side.

公开(公告)号：US20200326131A1

公开(公告)日：2020-10-15

申请号：US16912576

申请日：2020-06-25

Applicant: Furukawa Electric Co., Ltd.

Inventor： Shuta HIKICHI ,  Kenya KAWABATA ,  Masahiro MEGURO ,  Hiroshi SAKAI ,  Masato WATANABE ,  Yasuhiro UCHIMURA

IPC: F28D15/02

Abstract: Example embodiments may provide a heat sink capable of cooling even when hot spots generate a large amount of heat that is unevenly distributed in some regions of a heating element package. The heat sink may include a plurality of heat pipes including one end portions thermally connected to a heating element package provided with a heating element in a package and other end portions thermally connected to a heat dissipation unit, in which the plurality of heat pipes includes at least a first heat pipe and a second heat pipe having greater heat transport capacity than heat transport capacity of the first heat pipe.