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公开(公告)号：US10718572B2
公开(公告)日：2020-07-21
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
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.
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公开(公告)号：US20190323779A1
公开(公告)日：2019-10-24
申请号：US16460878
申请日：2019-07-02
Applicant: Furukawa Electric Co., Ltd.
Inventor： Kenya Kawabata , Masahiro Meguro , Kuang Yu Chu , Hung Wei Tseng
IPC: F28D15/02 , H01L23/36 , F28F1/34 , F28F1/32 , H01L23/427
Abstract: A heat sink includes a base plate thermally connectable to a heat generating element and having a flat plate shape, 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. A surface of the first heat radiating fin is not parallel to a surface of the second heat radiating fin.
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公开(公告)号：US20180080717A1
公开(公告)日：2018-03-22
申请号：US15813035
申请日：2017-11-14
Applicant: Furukawa Electric Co., Ltd.
Inventor： Kenya Kawabata , Masahiro Meguro , Kuang Yu Chu , Hung Wei Tseng
IPC: F28D15/02
Abstract: A heat sink includes a base plate thermally connectable to a heat generating element and having a flat plate shape, 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. A surface of the first heat radiating fin is not parallel to a surface of the second heat radiating fin.
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公开(公告)号：US12108570B2
公开(公告)日：2024-10-01
申请号：US17508736
申请日：2021-10-22
Applicant: Furukawa Electric Co., Ltd.
Inventor： Yoshikatsu Inagaki , Kenya Kawabata , Hirofumi Aoki
CPC classification number: H05K7/20336 , F28D15/0233 , F28D15/046
Abstract: The vapor chamber includes a container having a cavity formed of one plate-shaped body to which a heating element is thermally connected and another plate-shaped body facing the one plate-shaped body, a working fluid enclosed in the cavity, and a wick structure that is enclosed in the cavity and separated from the container. The container includes a support part protruding from an inner surface of the other plate-shaped body toward the one plate-shaped body, the support part being formed of a recessed part provided to an outer surface of the other plate-shaped body. At the rising base portion of the support part from the inner surface of the other plate-shaped body, the defined angle between the support part and the inner surface of the other plate-shaped body is an obtuse angle.
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公开(公告)号：US11933543B2
公开(公告)日：2024-03-19
申请号：US18048739
申请日：2022-10-21
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Kenya Kawabata , Masahiro Meguro , Ryo Tsubata , Hirofumi Aoki , Yoshikatsu Inagaki , Hiroshi Sakai , Hideaki Kawabata
IPC: F28D15/02
CPC classification number: F28D15/02
Abstract: A heat sink includes: a container having a cavity inside and a first surface and a second surface opposite the first surface; a working fluid encapsulated in the cavity; and a steam flow path in the cavity where the working fluid in a gas phase flows, the first surface having a flat part and a protruding part projecting from the flat part in an external direction, causing the container to have a flat portion and a protruding portion projecting from the flat portion in the external direction, an inner space of the protruding portion of the container being in communication with an inner space of the flat portion, causing the cavity to be formed, and a first heat radiating fin being provided on an exterior of the flat part of the first surface and a second heat radiating fin being provided on an exterior of the second surface.
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Patent Agency Ranking
公开(公告)号：US10760855B2
公开(公告)日：2020-09-01
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
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.
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公开(公告)号：US20170234625A1
公开(公告)日：2017-08-17
申请号：US15586419
申请日：2017-05-04
Applicant: Furukawa Electric Co., Ltd.
Inventor： Yoshikatsu Inagaki , Kenya Kawabata , Tatsuro Miura , Tomoki Yanagida
CPC classification number: F28D15/046 , F28D15/0233 , F28D15/0241 , F28D15/04 , F28D2021/0028 , F28F1/08 , F28F2255/18
Abstract: A heat pipe includes a container in which a corrugated portion is formed, the container having a hollow portion formed therein that is sealed, a wick structure provided on an inner peripheral surface of the hollow portion and a working fluid enclosed in the hollow portion. The wick structure has a vapor channel penetrating therethrough in a longitudinal direction of the hollow portion, the wick structure producing a capillary force. The wick structure is a sintered body of a powder metal material and projected into a crest portion of the corrugated portion. The wick structure is provided at a region in the crest portion of the corrugated portion and at a position of a trough portion of the corrugated portion.
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公开(公告)号：US12117243B2
公开(公告)日：2024-10-15
申请号：US17571432
申请日：2022-01-07
Applicant: Furukawa Electric Co., Ltd.
Inventor： Yoshikatsu Inagaki , Kenya Kawabata , Hirofumi Aoki
IPC: F28D15/04
CPC classification number: F28D15/04
Abstract: The disclosure provides a vapor chamber that has excellent fixing stability of a wick structure inside a container and also has excellent circulation properties for a liquid-phase working fluid due to excellent capillary force of the wick structure. The vapor chamber includes a container in which a cavity portion is formed by one plate-shaped body and another plate-shaped body facing the one plate-shaped body, a working fluid enclosed in the cavity portion, and a wick structure contained in the cavity portion and welded to the container so that a welded portion is formed in the wick structure.
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公开(公告)号：US11150028B2
公开(公告)日：2021-10-19
申请号：US16797501
申请日：2020-02-21
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Shinichi Ito , Masahiro Meguro , Kenya Kawabata
IPC: F28D15/02 , H05K7/20 , H01L23/367 , G06F1/20
Abstract: A cooling device includes first heat pipes thermally connected to a first heat-generating element at one end and thermally connected to the superimposed first and second heat-radiating fin groups at another end; and second heat pipes thermally connected to a second heat-generating element at one end and thermally connected to the superimposed second and third heat-radiating fin groups at another end, wherein the respective another ends of the first heat pipes altogether span a substantially entirety of a planar area between the first and second heat-radiating fin groups, and the respective another ends of the second heat pipes altogether span a substantially entirety of a planar area between the second and third heat-radiating fin groups.
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公开(公告)号：US11085703B2
公开(公告)日：2021-08-10
申请号：US17010574
申请日：2020-09-02
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Yosuke Watanabe , Kenya Kawabata , Yoshikatsu Inagaki , Tatsuro Miura , Kazuaki Aotani , Toshiaki Nakamura
Abstract: The present disclosure is to provide a heatsink that can improve heat radiation performance of a heat radiating fin while preventing dry-out of a heat receiving portion and that can equalize a heat input in the heat receiving portion in an environment in which an installation space of the heatsink is limited even when a forbidden region exists in the installation space.
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 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, a wick structure extended from the heat receiving portion to the heat radiating portion is housed in the internal space of the heat transport member, and the heat transport member has a heat radiating-side step portion, in which a step is provided in a direction that is not a direction parallel to a heat transport direction of the heat transport member, between a heat insulating portion placed between the heat receiving portion and the heat radiating portion and the heat radiating portion, the heat radiating portion being placed on a side of an installation surface of the heatsink compared to the heat insulating portion.
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