公开(公告)号：US20200173730A1

公开(公告)日：2020-06-04

申请号：US16779146

申请日：2020-01-31

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Yosuke WATANABE ,  Tatsuro MIURA ,  Toshiaki NAKAMURA ,  Kenya KAWABATA ,  Yoshikatsu INAGAKI

IPC: F28D15/04 ,  F28F9/22 ,  F28D15/02 ,  H05K7/20 ,  F28D21/00

Abstract: The present disclosure is to provide a heat sink capable of improving cooling efficiency of a heat radiation fin and exhibiting excellent cooling performance with respect to a cooling target regardless of an installation posture of the heat sink, and capable of being installed even in a narrow space.The heat sink includes: a heat transport member having a heat receiving portion thermally connected to a heat-generating element and including a first wick structure; a tube body connected to a heat insulating portion or a heat radiating portion of the heat transport member and including a second wick structure; and a heat radiation fin group which is thermally connected to the tube body and in which a plurality of heat radiation fins are arranged, in which, the heat transport member has an integral internal space that communicates from the heat receiving portion to a connection portion with the tube body and is sealed with a working fluid, the internal space of the heat transport member communicating with an internal space of the tube body, and the first wick structure includes a branch portion branched in a thickness direction of the heat transport member and multi-stage stem parts extending from the branch portion in a predetermined direction.

公开(公告)号：US20160033206A1

公开(公告)日：2016-02-04

申请号：US14879821

申请日：2015-10-09

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Hideaki KAMEOKA ,  Masanobu SUGIMURA ,  Tatsuro MIURA ,  Yasumi SASAKI ,  Hiroshi OKADA ,  Shinichi FURUMOTO ,  Masaaki YAMAMOTO

IPC: F28D15/04

CPC classification number: F28D15/04 ,  F28D15/0233 ,  F28D15/046 ,  H01L23/427 ,  H01L2924/0002 ,  Y10T29/49353 ,  H01L2924/00

Abstract: The invention provides a flattened heat pipe whose vapor flowing passage is not clogged and which has an excellent capillary force. The flattened heat pipe has a closed container formed by flattening a tubular container, a plurality of wick structures arrayed within the container in a longitudinal direction so as to form an acute-angled portion where a capillary force is large at least partially within the container, a hollow portion formed of an outer peripheral surface of the wick structure and an inner wall surface of the container and a working fluid sealed into the container.

Abstract translation: 本发明提供一种扁平的热管，其蒸气流动通道不被堵塞并且具有优异的毛细管力。 扁平化的热管具有通过使管状容器变平，多个芯体结构在容器内沿纵向方向排列形成的密闭容器，以形成至少部分在容器内毛细管力大的锐角部分， 由芯体结构的外周面和容器的内壁面形成的中空部分和密封到容器中的工作流体。

公开(公告)号：US20180172360A1

公开(公告)日：2018-06-21

申请号：US15579698

申请日：2015-07-22

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Tatsuro MIURA ,  Yoshikatsu INAGAKI ,  Hiroshi OKADA

IPC: F28D15/04 ,  F28D15/02 ,  H05K7/20 ,  F28F1/42

CPC classification number: F28D15/046 ,  F28D15/0233 ,  F28F1/30 ,  F28F1/42 ,  F28F3/02 ,  F28F2215/02 ,  F28F2255/18 ,  F28F2275/06 ,  H01L23/367 ,  H01L23/427 ,  H05K7/20336

Abstract: A heat transfer device includes a heat pipe in which working fluid is enclosed, a heat receiving plate provided on one end side of the heat pipe and a heat radiating fin provided on the other end side of the heat pipe, a first wick and a second wick that transfer working fluid provided on an inner wall surface of the heat pipe, a bent section bent between the one end side and the other end side, and a boundary section between the first wick and the second wick disposed in a lower part in the gravity direction of the bent section of the heat pipe or the heat transfer device. The heat transfer device can improve heat transfer characteristics with a simple configuration.

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：US20210007246A1

公开(公告)日：2021-01-07

申请号：US17027182

申请日：2020-09-21

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Yosuke WATANABE ,  Kenya KAWABATA ,  Yoshikatsu INAGAKI ,  Tatsuro MIURA ,  Kazuaki AOTANI ,  Toshiaki NAKAMURA

IPC: H05K7/20

Abstract: The present disclosure provides a heatsink that can improve heat radiation efficiency of a heat radiating fin and equalize a heat input in a heat receiving portion while securing sufficient volumes of the heat receiving portion, a heat insulating portion, and a heat radiating portion even in an environment in which an installation space for the heatsink, more specifically, an installation space in a width direction of the heatsink is limited.
A heatsink including: a heat transport member having a heat receiving portion thermally connected to a heating element; and a heat radiating fin group which is thermally connected to a heat radiating portion of the heat transport member and in which a plurality of heat radiating fins is arranged, wherein the heat transport member has an integral internal space that communicates from the heat receiving portion to the heat radiating portion and that is filled with a working fluid, and a cross-sectional area of an internal space in a direction orthogonal to a heat transport direction of the heat transport member in the heat radiating portion is larger than the cross-sectional area in a heat insulating portion between the heat receiving portion and the heat radiating portion.