# US 12,215,927 B2 · Evaporation device for cooling > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,215,927 B2 - Document ID: US12215927B2 - Status: Granted - Kind: B2 - Application number: 17/909,918 - Filed: 2021-01-28 - Published: 2023-04-06 - Granted: 2025-02-04 - Earliest claimed: 2020-03-09 - Assignees: Hyosung Heavy Industries Corporation - Applicants: Hyosung Heavy Industries Corporation - Inventors: Chang Woo Han; Seung Boong Jeong; Joon Hong Boo - Web page: https://patentgrep.com/patent/US12215927B2 ## CPC - F28D 15/04: with tubes having a capillary structure - F28D 15/02: in which the medium condenses and evaporates, e.g. heat pipes {(heat pipes used in solar heat collectors F24S10/95; in radiators F28D1/0226; in nuclear reactors G21C15/257)} - F28D 15/0233: {the conduits having a particular shape, e.g. non-circular cross-section, annular (F28D15/0241, F28D15/0266 take precedence)} - H05K 7/20309: {Evaporators} - H10W 40/73: for cooling by change of state - 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 2021/0029: {Heat sinks} - F28D 2021/0071: {Evaporators} - H10W 40/226: {characterised by projecting parts, e.g. fins to increase surface area (leadframes for cooling H10W70/461)} - H10W 40/40: involving heat exchange by flowing fluids - 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 The present disclosure is an evaporation device for cooling. In an evaporation space 12 formed inside a housing 10, a wick 16 allows a working fluid to move by capillary force. As the working fluid moves from a lower portion of the evaporation space 12 to an upper portion thereof, that is, from the working fluid inlet pipe 26 to the vapor outlet pipe 28 by the wick 16, the working fluid is evaporated by heat generated from the heat source to become vapor. A partition wall 20 is provided in the evaporation space 12 to control the flow of vapor. The working fluid transferred into the evaporation space 12 is uniformly mixed with the existing working fluid in the lower portion of the evaporation space 12 by a distributor 30. ## Claims ### Claim 1 An evaporation device for cooling, comprising: a housing having inner surfaces forming an evaporation space, and having an outer surface contacting with a heat source, the housing being connected to a working fluid inlet pipe on one side and a vapor outlet pipe on another side thereof, and configured to fill a working fluid with a level therein; a wick installed on an inner surface corresponding to the heat source among the inner surfaces to generate movement of the working fluid by capillary action; a partition wall dividing the evaporation space into a plurality of spaces communicating with each other and supporting the wick; and a distributor installed extending to an opposite side of the working fluid inlet pipe to mix the working fluid introduced through the working fluid inlet pipe with the working fluid pre-filled in the evaporation space, wherein the partition wall includes a partition wall body part having a band shape and a communication part formed in the partition wall body part, and the vapor flows between the plurality of spaces partitioned by the partition wall through the communication part. ### Claim 2 (depends on 1) The evaporation device for cooling of claim 1, wherein a protection plate is installed between the partition wall and the wick and covers an area where the wick is installed. ### Claim 3 (depends on 2) The evaporation device for cooling of claim 2, wherein the protection plate is formed of a mesh net to cause the movement of the working fluid by the capillary action. ### Claim 4 (depends on 1) The evaporation device for cooling of claim 1, wherein the plurality of spaces partitioned by the partition wall are formed to become narrower toward the vapor outlet pipe. ### Claim 5 (depends on 1) The evaporation device for cooling of claim 1, wherein an area of the communication part formed in the partition wall is formed to become narrower toward the vapor outlet pipe. ### Claim 6 (depends on 1) The evaporation device for cooling of claim 1, wherein the working fluid inlet pipe is connected to a lower portion of the housing in a gravitational direction, and the vapor outlet pipe is connected to an upper portion of the housing in the gravitational direction. ### Claim 7 (depends on 1) The evaporation device for cooling of claim 1, wherein the distributor is configured to move the working fluid by the capillary action. ### Claim 8 (depends on 7) The evaporation device for cooling of claim 7, wherein the distributor is formed in a hollow cylindrical shape by rolling a screen wick, or in a columnar shape with a denser inside by tightly rolling the screen wick. ### Claim 9 (depends on 1) The evaporation device for cooling of claim 1, further comprising a cover configured to cover the evaporation space to promote nucleate boiling of the working fluid, wherein a plurality of protrusions and grooves are formed inside the housing and the cover.