Air supplement control method for air conditioner, and air conditioner, controller and computer-readable storage medium

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.

What is claimed is: 
     
         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. 
   
     
     
         2 . 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.   
     
     
         3 . 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.   
     
     
         4 . 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.   
     
     
         5 . 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. 
     
     
         6 . 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.   
     
     
         7 . 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.   
     
     
         8 . 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.   
     
     
         9 . 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.   
     
     
         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.   
     
     
         11 . 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.   
     
     
         12 . 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.   
     
     
         13 . 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. 
     
     
         14 . 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. 
     
     
         15 . 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. 
     
     
         16 . 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. 
     
     
         17 . 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. 
     
     
         18 . 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 .   
     
     
         19 . 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 .