公开(公告)号：US20210018272A1

公开(公告)日：2021-01-21

申请号：US17039658

申请日：2020-09-30

Applicant: Furukawa Electric Co., Ltd.

Inventor： Yoshikatsu INAGAKI ,  Yasuhiro UCHIMURA ,  Shuta HIKICHI ,  Tatsuro MIURA ,  Hiroshi SAKAI

IPC: F28D15/02 ,  F28D15/04

Abstract: The present disclosure is related to providing a heat sink that can exhibit an excellent cooling property for even a heating element generating a high amount of heat and being mounted to a narrowed space.
The heat sink includes a plurality of heat pipes to be thermally connected to a heating element, and a heat dissipation section thermally connected to the plurality of heat pipes, in which in the plurality of heat pipes, at least evaporation sections to be thermally connected to the heating element have flattened portions whose cross sectional shape in a direction orthogonal to a heat transfer direction of the plurality of heat pipes is flattened, and surfaces in the flattened portions in a thickness direction are arranged facing the heating element.

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.

公开(公告)号：US20240284637A1

公开(公告)日：2024-08-22

申请号：US18653352

申请日：2024-05-02

Applicant: Furukawa Electric Co., Ltd.

Inventor： Yoshikatsu INAGAKI ,  Yasuhiro UCHIMURA

IPC: H05K7/20

CPC classification number: H05K7/2039 ,  H05K7/20336

Abstract: A heat sink including: a base portion to which a heat-generating element is thermally connected; a radiating fin provided on a front surface of the base portion; a heat pipe that is provided in an internal space of the base portion and stretches in a planar direction of the base portion; and a sealing member that is provided in the internal space of the base portion so as to face an end portion of the heat pipe in a longitudinal direction and seals the internal space of the base portion.

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.