# US 11,999,895 B1 · Liquid cooling while preventing electronic damage > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,999,895 B1 - Document ID: US11999895B1 - Status: Granted - Kind: B1 - Application number: 18/407,417 - Filed: 2024-01-08 - Granted: 2024-06-04 - Earliest claimed: 2024-01-08 - Assignees: Aojiang (Wuxi) Network Energy Co., Ltd. - Applicants: Aojiang (Wuxi) Network Energy Co., Ltd. - Inventors: Jianmei Lu; Qingfeng Xu; Wenwu Feng - Web page: https://patentgrep.com/patent/US11999895B1 ## CPC - C09K 5/048: {Boiling liquids as heat transfer materials} - H05K 7/203: {by immersion} - H05K 7/20318: {Condensers} - H05K 7/20381: {Thermal management, e.g. evaporation control} - C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract A perfluoro compound includes perfluorobutyl ethylene (PFBE) and a fluoroalkane. The perfluoro compound has an azeotropic point between 40 degrees Celsius and 60 degrees Celsius, inclusive. ## Claims ### Claim 1 A perfluoro compound comprising perfluorobutyl ethylene (PFBE) and a fluoroalkane, wherein the perfluoro compound has an azeotropic point between 40 degrees Celsius and 60 degrees Celsius, inclusive. ### Claim 2 (depends on 1) The perfluoro compound of claim 1, wherein the perfluoro compound has an azeotropic point between 45 degrees Celsius and 55 degrees Celsius, inclusive. ### Claim 3 (depends on 1) The perfluoro compound of claim 1, wherein the fluoroalkane comprises any of 1-(difluoromethoxy)-1,2,2-trifluoroethane; 2-fluoromethoxy-1,1,1,2-tetrafluoroethane; 2-methoxy-1,1,1,2-tetrafluoroethane; 1-methoxy-1,1,2,2-tetrafluoroethane; 1-difluoromethoxy-2,2-difluoroethane; 2-methoxy-1,1,2-trifluoroethane; 1,1-difluoro-2-methoxyethane; 1,1,1,3,3,3-hexafluoro-2-[(fluoromethoxy)(methoxy)]propane; 1,1,2-trifluoro-1-methoxy-2(trifluoromethoxy)ethane; 1,1,1,2,3,3-hexafluoro-3-methoxypropane; 1,1,1,3,3,3-hexafluoro-2-methoxypropane; 2-ethoxy-1,1,2,2-tetrafluoroethane (C4H6F4O); 1-ethoxy-1,1,2,2-tetrafluoroethane (C4H6F4O); 1,1,1-trifluoro-2-ethoxyethane; 1,1,1-trifluoro-3-methoxypropane; 1,1,1-trifluoro-2-methoxypropane; 1-ethoxy-1,2,2-trifluoroethane; 2,3-difluoro-4-(trifluoromethyl)oxetane; and/or 1,1,2,2,3,3-hexafluoro-1-methoxypropane. ### Claim 4 (depends on 1) The perfluoro compound of claim 1, wherein the fluoroalkane comprises 1-(difluoromethoxy)-1,2,2-trifluoroethane and 2,3-difluoro-4-(trifluoromethyl)oxetane. ### Claim 5 (depends on 1) The perfluoro compound of claim 1, wherein the fluoroalkane comprises between 10 percent and 60 percent by weight of 1-(difluoromethoxy)-1,2,2-trifluoroethane. ### Claim 6 (depends on 1) The perfluoro compound of claim 1, wherein the fluoroalkane comprises between 50 percent and 60 percent by weight of 1-(difluoromethoxy)-1,2,2-trifluoroethane. ### Claim 7 (depends on 1) The perfluoro compound of claim 1, wherein the fluoroalkane comprises between 20 percent and 30 percent by weight of 2,3-difluoro-4-(trifluoromethyl)oxetane. ### Claim 8 (depends on 1) The perfluoro compound of claim 1, wherein the fluoroalkane comprises between 30 percent and 40 percent by weight of 2,3-difluoro-4-(trifluoromethyl)oxetane. ### Claim 9 (depends on 1) The perfluoro compound of claim 1, wherein the fluoroalkane comprises between 40 percent and 50 percent by weight of 2,3-difluoro-4-(trifluoromethyl)oxetane. ### Claim 10 (depends on 1) The perfluoro compound of claim 1, wherein the perfluoro compound comprises between 20 percent and 30 percent by weight of the PFBE, and the fluoroalkane comprises between 50 percent and 60 percent by weight of 1-(difluoromethoxy)-1,2,2-trifluoroethane, and between 20 percent and 30 percent by weight of 2,3-difluoro-4-(trifluoromethyl)oxetane. ### Claim 11 (depends on 1) The perfluoro compound of claim 1, wherein the fluoroalkane comprises between 40 percent weight and 50 percent weight of 1-difluoromethoxy-2,2-difluoroethane. ### Claim 12 (depends on 1) The perfluoro compound of claim 1, wherein the fluoroalkane comprises between 40 percent weight and 50 percent weight of 2-methoxy-1,1,2-trifluoroethane. ### Claim 13 (depends on 1) The perfluoro compound of claim 1, wherein the fluoroalkane comprises between 45 percent weight and 55 percent weight of 1-(difluoromethoxy)-1,2,2-trifluoroethane. ### Claim 14 (depends on 1) The perfluoro compound of claim 1, wherein the fluoroalkane comprises between 80 percent weight and 90 percent weight of 1,1,1,2,3,3-hexafluoro-3-methoxypropane. ### Claim 15 (depends on 1) The perfluoro compound of claim 1, wherein the fluoroalkane comprises between 60 percent weight and 70 percent weight of 1,1,1,3,3,3-hexafluoro-2-methoxypropane. ### Claim 16 (depends on 1) The perfluoro compound of claim 1, wherein the fluoroalkane comprises between 50 percent weight and 60 percent weight of 2-ethoxy-1,1,2,2-tetrafluoroethane. ### Claim 17 (depends on 1) The perfluoro compound of claim 1, wherein the fluoroalkane comprises between 70 percent weight and 80 percent weight of 1,1,1-trifluoro-2-ethoxyethane. ### Claim 18 (depends on 1) The perfluoro compound of claim 1, wherein the fluoroalkane comprises between 50 percent weight and 60 percent weight of 1,1,1-trifluoro-3-methoxypropane. ### Claim 19 (depends on 1) The perfluoro compound of claim 1, wherein the fluoroalkane comprises between 90 percent weight and 95 percent weight of 1,1,1-trifluoro-2-methoxypropane. ### Claim 20 (depends on 1) A method of cooling using the perfluoro compound of claim 1, wherein the method comprises: immersing an electronic component within the perfluoro compound in a sealed container, wherein the perfluoro compound, upon reaching an azeotropic point, is cooled by a condenser within the sealed container; measuring, using one or more temperature sensors within the sealed container, a temperature of the perfluoro compound; in response to detecting that the perfluoro compound reaches a threshold temperature, selectively controlling one or more valves associated with the condenser to open and cool fluid within the condenser.