# US 2025/0155152 A1 · Air supplement control method for air conditioner, and air conditioner, controller and computer-readable storage medium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0155152 A1 - Document ID: US20250155152A1 - Status: Published application - Kind: A1 - Application number: 19/023,012 - Filed: 2025-01-15 - Published: 2025-05-15 - Earliest claimed: 2023-01-12 - Assignees: Gd Midea Air-Conditioning Equipment Co., Ltd. - Applicants: Gd Midea Air-Conditioning Equipment Co., Ltd. - Inventors: Yangyang YUAN; Haizhao DENG; Hui YU; Si LI - Web page: https://patentgrep.com/patent/US20250155152A1 ## CPC - F24F 11/76: by means responsive to temperature, e.g. bimetal springs - F24F 5/00: Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00 {, e.g. using solar heat or combined with household units such as an oven or water heater} - F24F 11/00: Control or safety arrangements - F24F 11/84: using valves - F25B 41/24: Arrangement of shut-off valves for disconnecting a part of the refrigerant cycle, e.g. an outdoor part - F25B 41/40: Fluid line arrangements - F25B 47/02: Defrosting cycles - F24F 2110/12: of the outside air - F24F 2140/20: Heat-exchange fluid temperature - F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02) - F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS ## Abstract An air supplement control method for an air conditioner, and an air conditioner, a controller and a computer-readable storage medium are provided. The air conditioner includes a compressor, an outdoor heat exchanger, an indoor heat exchanger, an enthalpy-increasing system and a gas bypass. The enthalpy-increasing system is provided with a one-way electromagnetic valve. The one-way electromagnetic valve is arranged on the second refrigerant flow path; and the gas bypass is arranged on the first refrigerant flow path and is positioned between the enthalpy-increasing system and the indoor heat exchanger. The air supplement control method includes acquiring an outdoor ambient temperature and an operating state of the compressor, and controlling the on-off state of the one-way electromagnetic valve according to the outdoor ambient temperature and the operating state. ## Claims ### Claim 1 A gas supplement control method for an air conditioner, wherein: the air conditioner comprises a compressor, an outdoor heat exchanger, an indoor heat exchanger, an enthalpy increasing system and a gas bypass; the enthalpy increasing system comprises a one-way electromagnetic valve; a first refrigerant flow path is arranged between the outdoor heat exchanger and the indoor heat exchanger; a second refrigerant flow path is arranged between the first refrigerant flow path and an enthalpy increasing port of the compressor; the one-way electromagnetic valve is arranged in the second refrigerant flow path; and the gas bypass is arranged in the first refrigerant flow path and located between the enthalpy increasing system and the indoor heat exchanger; wherein the gas supplement control method comprises: acquiring an outdoor ambient temperature and an operating state of the compressor; and switching between an open state and a closed state of the one-way electromagnetic valve according to the outdoor ambient temperature and the operating state. ### Claim 2 (depends on 1) The gas supplement control method of claim 1, wherein the switching between the open state and the closed state of the one-way electromagnetic valve according to the outdoor ambient temperature and the operating state comprises: switching between the open state and the closed state of the one-way electromagnetic valve according to the outdoor ambient temperature, a current operating frequency of the compressor and a current exhaust temperature. ### Claim 3 (depends on 2) The gas supplement control method of claim 2, wherein the switching between the open state and the closed state of the one-way electromagnetic valve according to the outdoor ambient temperature, the current operating frequency of the compressor and the current exhaust temperature comprises: in response to the current exhaust temperature being greater than a first preset exhaust temperature, determining a current exhaust superheat of the compressor according to the current exhaust temperature and an evaporation temperature; and in response to the outdoor ambient temperature being less than a preset outdoor temperature, the current operating frequency being greater than a preset frequency, and the current exhaust superheat being greater than a first preset exhaust superheat, opening the one-way electromagnetic valve. ### Claim 4 (depends on 3) The gas supplement control method of claim 3, wherein the switching between the open state and the closed state of the one-way electromagnetic valve according to the outdoor ambient temperature, the current operating frequency of the compressor and the current exhaust temperature further comprises: in response to the outdoor ambient temperature being less than a preset outdoor temperature, the current operating frequency being greater than a preset frequency, and the current exhaust temperature being greater than a second preset exhaust temperature, opening the one-way electromagnetic valve, wherein the second preset exhaust temperature is greater than the first preset exhaust temperature. ### Claim 5 (depends on 3) The gas supplement control method of claim 3, wherein the outdoor ambient temperature being less than a preset outdoor temperature comprises the outdoor ambient temperature being continuously less than the preset outdoor temperature for a preset period of time. ### Claim 6 (depends on 4) The gas supplement control method of claim 4, wherein the switching between the open state and the closed state of the one-way electromagnetic valve according to the outdoor ambient temperature, the current operating frequency of the compressor and the current exhaust temperature further comprises: in response to the outdoor ambient temperature being greater than or equal to a preset outdoor temperature, closing the one-way electromagnetic valve. ### Claim 7 (depends on 4) The gas supplement control method of claim 4, wherein the switching between the open state and the closed state of the one-way electromagnetic valve according to the outdoor ambient temperature, the current operating frequency of the compressor and the current exhaust temperature further comprises: in response to the current operating frequency being less than or equal to a preset frequency, closing the one-way electromagnetic valve. ### Claim 8 (depends on 4) The gas supplement control method of claim 4, wherein the switching between the open state and the closed state of the one-way electromagnetic valve according to the outdoor ambient temperature, the current operating frequency of the compressor and the current exhaust temperature further comprises: in response to the current exhaust temperature being less than a third preset exhaust temperature, closing the one-way electromagnetic valve, wherein the third preset exhaust temperature is less than the first preset exhaust temperature. ### Claim 9 (depends on 4) The gas supplement control method of claim 4, wherein the switching between the open state and the closed state of the one-way electromagnetic valve according to the outdoor ambient temperature, the current operating frequency of the compressor and the current exhaust temperature further comprises: determining the current exhaust superheat of the compressor according to the current exhaust temperature and the evaporation temperature, and in response to the current exhaust superheat being less than a second preset exhaust superheat, closing the one-way electromagnetic valve, wherein the second preset exhaust superheat is less than the first preset exhaust superheat. ### Claim 10 An air conditioner comprising: a compressor, an outdoor heat exchanger, an indoor heat exchanger and a water tray, wherein a first refrigerant flow path is arranged between the outdoor heat exchanger and the indoor heat exchanger, and the water tray is located below the outdoor heat exchanger; an enthalpy increasing system, comprising a one-way electromagnetic valve, wherein a second refrigerant flow path is arranged between the first refrigerant flow path and an enthalpy increasing port of the compressor, and the one-way electromagnetic valve is arranged in the second refrigerant flow path; and a gas bypass, arranged in the first refrigerant flow path and located between the enthalpy increasing system and the indoor heat exchanger, wherein the gas bypass is arranged at the water tray. ### Claim 11 (depends on 10) The air conditioner of claim 10, wherein: the enthalpy increasing system further comprises a flash evaporator; the flash evaporator comprises a first refrigerant flow hole, a second refrigerant flow hole and a third refrigerant flow hole; the flash evaporator is connected to the enthalpy increasing port of the compressor through the first refrigerant flow hole and the one-way electromagnetic valve sequentially; the flash evaporator is connected to the outdoor heat exchanger through the second refrigerant flow hole; and the flash evaporator is connected to the gas bypass through the third refrigerant flow hole. ### Claim 12 (depends on 11) The air conditioner of claim 11, wherein: the enthalpy increasing system further comprises a throttling device; and the throttling device is arranged in the first refrigerant flow path and located between the outdoor heat exchanger and the gas bypass. ### Claim 13 (depends on 12) The air conditioner of claim 12, wherein the throttling device comprises a first throttling device, arranged in the first refrigerant flow path and located between the outdoor heat exchanger and the second refrigerant flow hole. ### Claim 14 (depends on 12) The air conditioner of claim 12, wherein the throttling device comprises a second throttling device, arranged in the first refrigerant flow path and located between the third refrigerant flow hole and the gas bypass. ### Claim 15 (depends on 13) The air conditioner of claim 13, wherein a respective one of first throttling device and the second throttling device is an electronic expansion valve or a capillary tube. ### Claim 16 (depends on 14) The air conditioner of claim 14, wherein a respective one of first throttling device and the second throttling device is an electronic expansion valve or a capillary tube. ### Claim 17 (depends on 10) The air conditioner of claim 10, further comprising a four-way valve, which is respectively communicated with the outdoor heat exchanger, the indoor heat exchanger, and a gas return hole and a gas exhaust hole of the compressor. ### Claim 18 (depends on 1) A controller comprising: a memory; and at least one processor, wherein a computer program is stored in the memory and executable by the at least one processor, and wherein when executing the computer program, the at least one processor performs the gas supplement control method for an air conditioner according to claim 1. ### Claim 19 (depends on 1) A non-transitory computer-readable storage medium, on which computer-executable instructions are stored, wherein the computer-executable instructions are configured to execute the gas supplement control method for an air conditioner according to claim 1.