# US 11,112,186 B2 · Heat pipe heatsink with internal structural support plate > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,112,186 B2 - Document ID: US11112186B2 - Status: Granted - Kind: B2 - Application number: 17/010,599 - Filed: 2020-09-02 - Published: 2020-12-24 - Granted: 2021-09-07 - Earliest claimed: 2019-04-18 - Assignees: Furukawa Electric Co., Ltd. - Applicants: Furukawa Electric Co., Ltd. - Inventors: Yosuke Watanabe; Kenya Kawabata; Yoshikatsu Inagaki; Tatsuro Miura; Kazuaki Aotani; Toshiaki Nakamura - Web page: https://patentgrep.com/patent/US11112186B2 ## CPC - F28D 15/0275: {Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores} - F28D 15/0266: {with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers (F28D15/043 takes precedence)} - F28D 15/04: with tubes having a capillary structure - F28D 15/043: {forming loops, e.g. capillary pumped loops} - H05K 7/20336: {Heat pipes, e.g. wicks or capillary pumps} - H10W 40/10: Arrangements for heating - H10W 40/73: for cooling by change of state - F28D: HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT (fluid heaters having heat generating means and heat transferring means F24H; furnaces F27; details of heat-exchange apparatus of general) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 ## Abstract 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 heat receiving portion inner surface area increasing portion and a supporting member are provided in an internal space of the heat receiving portion, and the supporting member is in surface contact with the heat receiving portion inner surface area increasing portion. ## Claims ### Claim 1 A heatsink comprising: a heat transport member having a heat receiving portion thermally connected to a heating element; and a plurality of second heat radiating fins connected to a heat radiating portion of the heat transport member, 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 heat receiving portion inner surface area increasing portion formed by provision of a plurality of plate-like fins in an erected manner on an inner surface of the heat transport member, and a supporting member having a first flat plate portion that is in surface contact with the plurality of plate-like fins, a second flat plate portion facing the first flat plate portion, and a third flat plate portion connecting the first flat plate portion and the second flat plate portion are provided in an internal space of the heat receiving portion, wherein 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 wick structure is housed in a portion different from the portion of the heat receiving portion inner surface area increasing portion, and the supporting member is not the wick structure. ### Claim 2 (depends on 1) The heatsink according to claim 1, further comprising a pipe body connected to the heat radiating portion of the heat transport member, and a plurality of first heat radiating fins thermally connected to the pipe body, wherein the internal space of the heat transport member communicates with an internal space of the pipe body. ### Claim 3 (depends on 2) The heatsink according to claim 2, wherein the pipe body is extended in an arrangement direction of the first heat radiating fins. ### Claim 4 (depends on 2) The heatsink according to claim 2, wherein an extension direction of the pipe body is not parallel to a heat transport direction of the heat transport member. ### Claim 5 (depends on 2) The heatsink according to claim 2, wherein a plurality of the pipe bodies is provided and is extended in a plurality of directions from the heat transport member. ### Claim 6 (depends on 1) The heatsink according to claim 1, wherein an area of the first flat plate portion is larger than an area of the second flat plate portion. ### Claim 7 (depends on 1) The heatsink according to claim 1, wherein the third flat plate portion is extended in a heat transport direction of the heat transport member. ### Claim 8 (depends on 1) The heatsink according to claim 1, wherein the third flat plate portion is extended from each of one end and an other end in a width direction of the first flat plate portion, and the second flat plate portion is extended in an outer direction from the third flat plate portion. ### Claim 9 (depends on 1) The heatsink according to claim 1, wherein the third flat plate portion is extended from each of one end and an other end in a width direction of the first flat plate portion, and the second flat plate portion is extended in an inner direction from the third flat plate portion. ### Claim 10 (depends on 1) The heatsink according to claim 1, wherein a through hole is provided in the first flat plate portion. ### Claim 11 (depends on 1) The heatsink according to claim 1, wherein at least one surface of the heat transport member has a planar shape.