# US 12,760,945 B2 · Condensing device and heat pump system comprising same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,760,945 B2 - Document ID: US12760945B2 - Status: Granted - Kind: B2 - Application number: 18/874,540 - Filed: 2023-06-02 - Published: 2026-08-20 - Granted: 2026-10-13 - Earliest claimed: 2022-06-14 - Assignees: York (Wuxi) Air Conditioning and Refrigeration Co., Ltd.; Tyco Fire & Security GmbH - Applicants: York (Wuxi) Air Conditioning and Refrigeration Co., Ltd.; Tyco Fire & Security GmbH - Inventors: Jing Li; Jeb William Schreiber; Xiuping Su; Shimin Sheng; Pei Pei - Web page: https://patentgrep.com/patent/US12760945B2 ## CPC - F25B 39/04: Condensers - F25B 30/02: of the compression type - F25B 40/02: Subcoolers - F28D 7/0075: {with particular circuits for the same heat exchange medium, e.g. with the same heat exchange medium flowing through sections having different heat exchange capacities or for heating or cooling the same heat exchange medium at different temperatures} - F28D 7/1646: {with particular pattern of flow of the heat exchange medium flowing outside the conduit assemblies, e.g. change of flow direction} - F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS - 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) ## Abstract This application discloses a condensing device and a heat pump system including the same. The condensing device includes: a shell; and at least two sets of heat exchange tube bundles, where each set of heat exchange tube bundles includes a condensing tube bundle and a subcooling tube bundle, and the subcooling tube bundle is arranged below the corresponding condensing tube bundle, where the at least two sets of heat exchange tube bundles are configured to circulate the cooling medium independently, to enable the cooling medium in each set of heat exchange tube bundles to perform heat exchange with the refrigerant in the heat exchange accommodating cavity independently. Two subcoolers are arranged in a same shell of the condensing device of this application, where one subcooler may be used in an independent refrigeration mode, and the other subcooler may be used in a water heating mode. In the independent refrigeration mode, the subcooler can improve the refrigeration performance of the heat pump system. In the water heating mode, in addition to improving the performance of the heat pump system, the subcooler can further reduce the size of an economizer in the heat pump system, and finally reduce the occupied area of the unit. ## Claims ### Claim 1 A condensing device, comprising: a shell, wherein the shell has a length direction (L), a width direction (W), and a height direction (H), and a heat exchange accommodating cavity is provided in the shell, and the heat exchange accommodating cavity is configured to accommodate a refrigerant; and at least two sets of heat exchange tube bundles, wherein each set of heat exchange tube bundles is arranged in the heat exchange accommodating cavity and extends in the length direction (L), an inside of each set of heat exchange tube bundles is configured to circulate a cooling medium, each set of heat exchange tube bundles comprises a condensing tube bundle and a subcooling tube bundle, and the subcooling tube bundle is arranged below the corresponding condensing tube bundle, wherein the at least two sets of heat exchange tube bundles are each configured to circulate the cooling medium independently to enable the cooling medium in each set of heat exchange tube bundles to exchange heat with the refrigerant in the heat exchange accommodating cavity independently. ### Claim 2 (depends on 1) The condensing device of claim 1, wherein: the condensing device further comprises at least two cooling medium accommodating box sets arranged corresponding to the at least two sets of heat exchange tube bundles, each of the cooling medium accommodating box sets comprises one pair of cooling medium accommodating boxes, a cooling medium inlet, and a cooling medium outlet, the cooling medium inlet and the cooling medium outlet are arranged on the one pair of cooling medium accommodating boxes, the cooling medium accommodating box is used for accommodating configured to accommodate the cooling medium, the cooling medium inlet is configured to input the cooling medium to the cooling medium accommodating box, and the cooling medium outlet is configured to output the cooling medium from the cooling medium accommodating box, wherein the one pair of cooling medium accommodating boxes are respectively arranged at two ends of the corresponding heat exchange tube bundle in the length direction (L), and the cooling medium inlet and the cooling medium outlet are in fluid communication with the corresponding heat exchange tube bundle through the one pair of cooling medium accommodating boxes to enable the cooling medium to flow through each set of heat exchange tube bundles independently. ### Claim 3 (depends on 2) The condensing device of claim 2, wherein: the at least two sets of heat exchange tube bundles comprise a first set of heat exchange tube bundles and a second set of heat exchange tube bundles, the first set of heat exchange tube bundles and the second set of heat exchange tube bundles are arranged on two opposite sides of the shell in the width direction (W), and the first set of heat exchange tube bundles and the second set of heat exchange tube bundles each have at least one tube pass; and the at least two cooling medium accommodating box sets comprise a first cooling medium accommodating box set and a second cooling medium accommodating box set, and the first cooling medium accommodating box set and the second cooling medium accommodating box set are correspondingly arranged on the two opposite sides of the shell in the width direction (W). ### Claim 4 (depends on 3) The condensing device of claim 3, wherein: the first cooling medium accommodating box set comprises at least one first pass partition plate, and the at least one first pass partition plate is arranged in at least one of the one pair of cooling medium accommodating boxes of the first cooling medium accommodating box set, wherein the at least one first pass partition plate is configured to enable the first set of heat exchange tube bundles to have at least two tube passes; and the second cooling medium accommodating box set comprises at least one second pass partition plate, and the at least one second pass partition plate is arranged in at least one of the one pair of cooling medium accommodating boxes of the second cooling medium accommodating box set, wherein the at least one second pass partition plate is configured to enable the second set of heat exchange tube bundles to have at least two tube passes. ### Claim 5 (depends on 4) The condensing device of claim 4, wherein: the first set of heat exchange tube bundles and the second set of heat exchange tube bundles have different numbers of tube passes. ### Claim 6 (depends on 2) The condensing device of claim 2, wherein: the shell comprises a cylinder and one pair of tube plates, the one pair of tube plates are connected to two ends of the cylinder in the length direction (L), the cylinder and the one pair of tube plates enclose the heat exchange accommodating cavity, and the one pair of cooling medium accommodating boxes are respectively arranged on outer sides of the one pair of tube plates, wherein two ends of each of the at least two sets of heat exchange tube bundles in the length direction (L) pass through the one pair of tube plates to be in fluid communication with the cooling medium inlet and the cooling medium outlet of the corresponding one pair of cooling medium accommodating boxes independently. ### Claim 7 (depends on 2) The condensing device of claim 2, wherein: the subcooling tube bundle of each set of heat exchange tube bundles is directly in fluid communication with the corresponding cooling medium inlet, to enable at least one part of the cooling medium inputted from the cooling medium inlet to first flow through the subcooling tube bundle and then flow through the corresponding condensing tube bundle. ### Claim 8 (depends on 1) A heat pump system, comprising: a compressor, a condensing device, a throttling device, and an evaporating device arranged in a refrigerant circuit, wherein the condensing device is the condensing device according to claim 1. ### Claim 9 (depends on 8) The heat pump system of claim 8, wherein: the at least two sets of heat exchange tube bundles comprise a first set of heat exchange tube bundles and a second set of heat exchange tube bundles; and the heat pump system has an independent refrigeration mode and an independent water heating mode, wherein the heat pump system is configured to: circulate, in the independent refrigeration mode, the cooling medium in the first set of heat exchange tube bundles of the condensing device; and circulate, in the independent water heating mode, the cooling medium in the second set of heat exchange tube bundles of the condensing device. ### Claim 10 (depends on 9) The heat pump system of claim 9, wherein: a first number of tube passes of the first set of heat exchange tube bundles is less than a second number of tube passes of the second set of heat exchange tube bundles.