# US 11,116,103 B2 · Multi-floor data center cooling system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,116,103 B2 - Document ID: US11116103B2 - Status: Granted - Kind: B2 - Application number: 16/710,121 - Filed: 2019-12-11 - Published: 2021-06-17 - Granted: 2021-09-07 - Earliest claimed: 2019-12-11 - Assignees: Baidu USA LLC - Applicants: Baidu USA LLC - Inventors: Tianyi Gao - Web page: https://patentgrep.com/patent/US11116103B2 ## CPC - H05K 7/1487: {Blade assemblies, e.g. blade cases or inner arrangements within a blade} - H05K 7/2079: {within rooms for removing heat from cabinets} - H05K 7/1492: {having electrical distribution arrangements, e.g. power supply or data communications} - H05K 7/20145: {Means for directing air flow, e.g. ducts, deflectors, plenum or guides} - H05K 7/20309: {Evaporators} - H05K 7/20718: {Forced ventilation of a gaseous coolant (in closed loop H05K7/20754)} - H05K 7/208: {Liquid cooling with phase change} - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract A multi-floor data center can include a data center building having a plurality of floors, a single centralized air intake module spanning each of the plurality of floors, a number of cooling coil modules, a centralized liquid cooling system, and a number of IT modules. Each of the floors includes at least one of the cooling coil modules configured to receive external air from the single air intake module to cool a cooling coil. The centralized liquid cooling system is configured to circulate cooling liquid to the cooling coil for each of the cooling coil modules. Each of the floors includes one of the IT modules configured to house computing systems, and internal air is cooled at each of the cooling coil modules and introduced into each of the IT modules to cool the computing systems. Each floor can be equipped with different modular cooling systems with different cooling capacities. ## Claims ### Claim 1 A multi-floor data center comprising: a data center building having a plurality of floors; a single air intake module spanning each of the plurality of floors and configured to receive external air into the data center building; a plurality of cooling coil modules, wherein each of the plurality of floors includes at least one of the plurality of cooling coil modules configured to receive the external air from the single air intake module to cool a cooling coil; a centralized liquid cooling system configured to circulate cooling liquid to the cooling coil for each of the plurality of cooling coil modules; and a plurality of IT modules, wherein each of the plurality of floors includes one of the IT modules configured to house a plurality of computing systems, wherein internal air is cooled at each of the plurality of cooling coil modules and introduced into each of the plurality of IT modules. ### Claim 2 (depends on 1) The multi-floor data center as in claim 1, further comprising an enhanced cooling module located on at least one of the plurality of floors and configured to further cool the internal air. ### Claim 3 (depends on 2) The multi-floor data center as in claim 2, wherein the enhanced cooling module includes an evaporator coil configured to cool the internal air. ### Claim 4 (depends on 3) The multi-floor data center as in claim 3, further comprising an external cooling unit in communication with the enhanced cooling module. ### Claim 5 (depends on 1) The multi-floor data center as in claim 1, further comprising a plurality of return air ducts, wherein each of the plurality of floors includes one of the plurality of return air ducts configured to direct the internal air from one of the IT modules to a corresponding cooling coil module. ### Claim 6 (depends on 1) The multi-floor data center as in claim 1, further comprising: an enhanced cooling module located on at least one of the plurality of floors; and a return air duct configured to allow air to bypasses the enhanced cooling module between one of the cooling coil modules and one of the IT modules. ### Claim 7 (depends on 1) The multi-floor data center as in claim 1, wherein each of the plurality of IT modules is configured to house between 20-30 computing system racks, and the plurality of IT modules is configured to house between 80-100, 100-200, 200-300, 300-400, or 400-500 racks in total. ### Claim 8 (depends on 1) The multi-floor data center as in claim 1, wherein at least one of the plurality of IT modules is configured to house other equipment such as Uninterruptible Power Supply (UPS) battery modules. ### Claim 9 A multi-floor data center, comprising: a data center building having a plurality of floors; a single air intake module spanning each of the plurality of floors and configured to receive external air into the data center building; a plurality of air cooling modules, wherein each of the plurality of floors includes at least one of the plurality of air cooling modules, and each of the plurality of air cooling modules is configured to house: a cooling coil configured to receive external air from the single air intake module and connected to a centralized liquid cooling system; or a direct free air filter configured to filter air from the single air intake module; and a plurality of IT modules, wherein each of the plurality of floors includes one of the IT modules configured to house a plurality of computing systems, wherein air from each of the plurality of air cooling modules is introduced into each of the plurality of IT modules. ### Claim 10 (depends on 9) The multi-floor data center as in claim 9, further comprising: an enhanced cooling module located on at least one of the plurality of floors. ### Claim 11 (depends on 10) The multi-floor data center as in claim 10, wherein the enhanced cooling module includes an evaporator coil. ### Claim 12 (depends on 9) The multi-floor data center as in claim 9, further comprising: at least one return air duct configured to circulate internal air from one of the plurality of IT modules to the cooling coils within the plurality of air cooling modules. ### Claim 13 (depends on 9) The multi-floor data center as in claim 9, wherein the plurality of air cooling modules house a cooling coil or direct free air filter based on a type of computing system housed within the plurality of IT modules. ### Claim 14 (depends on 9) The multi-floor data center as in claim 9, wherein the plurality of air cooling modules house a cooling coil or direct free air filter based on external air quality. ### Claim 15 (depends on 9) The multi-floor data center as in claim 9, wherein each of the plurality of IT modules is configured to house between 20-30 computing system racks, and the plurality of IT modules is configured to house between 80-100, 100-200, 200-300, 300-400, or 400-500 racks in total. ### Claim 16 (depends on 9) The multi-floor data center as in claim 9, wherein at least one of the plurality of IT modules is configured to house other equipment such as Uninterruptible Power Supply (UPS) battery modules. ### Claim 17 A multi-floor data center comprising: a data center building having a plurality of floors; a single air intake module spanning each of the plurality of floors and configured to receive external air into the data center building through a side wall of the data center building; a plurality of cooling coil modules, wherein each of the plurality of floors includes at least one of the plurality of cooling coil modules configured to receive the external air from the single air intake module to cool a cooling coil; a plurality of enhanced cooling modules, wherein each of the plurality of floors includes at least one of the plurality of enhanced cooling modules configured to further cool internal air; an external cooling unit in communication with the plurality of enhanced cooling modules; a centralized liquid cooling system configured to circulate cooling liquid to the cooling coil for each of the plurality of cooling coil modules and to the external cooling unit; a plurality of IT modules, wherein each of the plurality of floors includes one of the IT modules configured to house a plurality of computing systems, wherein internal air is cooled at each of the plurality of cooling coil modules and enhanced cooling modules before being introduced into each of the plurality of IT modules; and a plurality of return air ducts, wherein each of the plurality of floors includes one of the plurality of return air ducts configured to direct the internal air from one of the IT modules to a corresponding cooling coil module. ### Claim 18 (depends on 17) The multi-floor data center as in claim 17, further comprising: a plurality of return air ducts configured to allow air to bypass the plurality of enhanced cooling modules between the plurality of cooling coil modules and the plurality of IT modules. ### Claim 19 (depends on 17) The multi-floor data center as in claim 17, wherein each of the plurality of IT modules is configured to house between 20-30 computing system racks, and the plurality of IT modules is configured to house between 80-100, 100-200, 200-300, 300-400, or 400-500 racks in total. ### Claim 20 (depends on 17) The multi-floor data center as in claim 17, wherein at least one of the plurality of IT modules is configured to house other equipment such as Uninterruptible Power Supply (UPS) battery modules.