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公开(公告)号：US12058841B2
公开(公告)日：2024-08-06
申请号：US17508689
申请日：2021-10-22
Applicant: Furukawa Electric Co., Ltd.
Inventor： Hirofumi Aoki , Yoshikatsu Inagaki , Yoshinori Nakamura , Hideaki Kawabata
CPC classification number: H05K7/20318 , F28D15/04 , H05K7/20327
Abstract: A cooling device that can reduce heat resistance by improving a heat exchange action of a condensation tube, and can exhibit excellent cooling characteristics, and a cooling system using the cooling device are provided. The cooling device includes a container to which at least one heating element is thermally connected, a primary refrigerant sealed inside the container, a condensation tube through which a secondary refrigerant flows and which penetrates through a gaseous phase portion inside the container, and a porous member provided at an outer surface of the condensation tube.
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公开(公告)号：US11874068B2
公开(公告)日：2024-01-16
申请号：US18053481
申请日：2022-11-08
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Yoshikatsu Inagaki , Hirofumi Aoki
CPC classification number: F28D15/046 , F28D15/0233 , F28D2021/0029
Abstract: A vapor chamber has: a container in which a cavity portion is formed in an inside; a wick structure provided in the cavity portion; a working fluid enclosed in the cavity portion; a vapor flow path which is formed in the cavity portion and through which the working fluid in a gas phase flows; and a hydrogen occlusion metal that is disposed in the cavity portion and absorbs hydrogen at 350° C. or lower and does not release hydrogen at 350° C. or lower, the hydrogen occlusion metal being coated in a region in contact with the working fluid in an inner surface of the cavity portion and/or the wick structure.
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公开(公告)号：US11415373B2
公开(公告)日：2022-08-16
申请号：US16600114
申请日：2019-10-11
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Yoshikatsu Inagaki , Hirofumi Aoki , Kazuya Takahashi , Shinichi Ito , Shuta Hikichi
Abstract: Provided is a heat pipe which is installed in a cold region in a bottom heat posture in which a longitudinal direction of a container is substantially in parallel with a gravitational direction, is capable of preventing the container from deforming even when a working fluid has become frozen, and has excellent heat transport properties.
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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：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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Patent Agency Ranking
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.-
公开(公告)号：US11054190B2
公开(公告)日：2021-07-06
申请号：US16362300
申请日：2019-03-22
Applicant: FURUKAWA ELECTRIC CO., LTD.
Inventor： Yoshikatsu Inagaki , Hirofumi Aoki
Abstract: A heat insulating structure body comprising: a container which includes a first plate-like body, a second plate-like body facing the first plate-like body, a partition plate for dividing a space between the first plate-like body and the second plate-like body, a first cavity part formed by the first plate-like body and the partition plate, and a second cavity part formed by the second plate-like body and the partition plate, wherein a wick structure body and a working fluid are sealed in the second cavity part.
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公开(公告)号：US10458720B2
公开(公告)日：2019-10-29
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 , F28F1/42 , H05K7/20 , F28F1/30 , H01L23/427 , F28F3/02 , H01L23/367
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.
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公开(公告)号：US10184729B2
公开(公告)日：2019-01-22
申请号：US15586419
申请日：2017-05-04
Applicant: Furukawa Electric Co., Ltd.
Inventor： Yoshikatsu Inagaki , Kenya Kawabata , Tatsuro Miura , Tomoki Yanagida
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：US12078423B2
公开(公告)日：2024-09-03
申请号：US17103854
申请日：2020-11-24
Applicant: Furukawa Electric Co., Ltd.
Inventor： Yoshikatsu Inagaki , Hirofumi Aoki , Daiki Takemura , Hiroshi Okada , Kazuaki Aotani
CPC classification number: F28D15/046 , F28D15/0233 , H05K7/20336
Abstract: The vapor chamber includes a container having a hollow cavity and formed of one plate-shaped member and another plate-shaped member facing the one plate-shaped member that are layered on each other, a working fluid enclosed in the cavity, and a wick structure provided in the cavity. The wick structure includes a first wick part extending from a heat receiving part to a heat discharge part and having a first wick member using a linear member, and a second wick part provided to the heat receiving part and having a second wick member using a linear member. An average diameter the linear member of the second wick member is smaller than an average diameter of the linear member of the first wick member or an aperture dimension of the second wick member is smaller than an aperture dimension of the first wick member.
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