Air conditioner, control method and computer-readable storage medium

Abstract

Proposed by the present disclosure are an air conditioner, a control method and a computer-readable storage medium. The air conditioner includes: a refrigerant switching device, an indoor heat exchanger, an outdoor heat exchanger, a compressor, a memory, and a processor. The refrigerant switching device includes a liquid pipe, a gas pipe, and a valve assembly. The processor executes a computer program to execute the following: obtaining switching information of a working mode of the air conditioner; and controlling the valve assembly according to the switching information and the gas pipe and the liquid pipe are closed according to the sequence of the gas pipe first and then the liquid pipe, and then opened according to the sequence of the gas pipe first and then the liquid pipe.

1 . An air conditioner, comprising:
 a refrigerant switching device, comprising a liquid pipe, a gas pipe and a valve assembly, the valve assembly being arranged on the liquid pipe and the gas pipe and configured to open the liquid pipe and the gas pipe or close the liquid pipe and the gas pipe;   an indoor heat exchanger, a first port of the indoor heat exchanger being connected to the liquid pipe and a second port of the indoor heat exchanger being connected to the gas pipe;   an outdoor heat exchanger, a first port of the outdoor heat exchanger being connected to the liquid pipe;   a compressor, a first port of the compressor being connected to the gas pipe and a second port of the compressor being connected to a second port of the outdoor heat exchanger;   a memory, storing a computer program; and   a processor, connected to the memory and the valve assembly, the processor executing the computer program to perform the following:   obtaining switching information of a working mode of the air conditioner; and   controlling the valve assembly according to the switching information, wherein the gas pipe and the liquid pipe are closed according to the sequence of first the gas pipe and then the liquid pipe, and then opened according to the sequence of the gas pipe first and then the liquid pipe.   
     
     
         2 . The air conditioner according to  claim 1 , wherein the first port of the compressor comprises an exhaust port and a gas suction port; and the gas pipe comprises:
 a first pressure gas pipe, connected between the exhaust port and the second port of the indoor heat exchanger; and   a second pressure gas pipe, connected between the gas suction port and the second port of the indoor heat exchanger;   wherein a pressure on the first pressure gas pipe is greater than a pressure on the second pressure gas pipe.   
     
     
         3 . The air conditioner according to  claim 2 , wherein the valve assembly comprises:
 a first valve body, arranged in the liquid pipe and configured to open or close the liquid pipe;   a second valve body, arranged in the first pressure gas pipe and configured to open or close the first pressure gas pipe; and   a third valve body, arranged in the second pressure gas pipe and configured to open or close the second pressure gas pipe.   
     
     
         4 . The air conditioner according to  claim 3 , wherein the step of the processor executing controlling the valve assembly according to the switching information when executing the computer program comprises:
 controlling the third valve body to close and then controlling the first valve body to close, according to the switching information of the air conditioner switching from a cooling mode to a heating mode;   controlling the second valve body to open, based on a first time duration in which the first valve body is closed reaching a first time duration threshold; and   controlling the first valve body to open, based on a second time duration in which the second valve body is opened reaching a second time duration threshold.   
     
     
         5 . The air conditioner according to  claim 3 , wherein the step of the processor executing controlling the valve assembly according to the switching information when executing the computer program comprises:
 controlling the second valve body to close and then controlling the first valve body to close, according to the switching information of the air conditioner switching from a heating mode to a cooling mode;   controlling the third valve body to open, based on a first time duration in which the first valve body is closed reaching a first time duration threshold; and   controlling the first valve body to open, based on a third time duration in which the third valve body is opened reaching a third time duration threshold.   
     
     
         6 . The air conditioner according to  claim 3 , wherein
 the first valve body, the second valve body and the third valve body are each a proportional control valve; and   the step of the processor executing the computer program to perform controlling the second valve body or the third valve body to open comprises:   adjusting an opening degree of a proportional control valve multiple times according to a preset opening degree, wherein the opening degree of the proportional control valve reaches an opening degree threshold.   
     
     
         7 . A control method for an air conditioner, applied to the air conditioner according to  claim 1 , the control method comprising:
 obtaining switching information of a working mode of the air conditioner; and   controlling the valve assembly according to the switching information, wherein a gas pipe and a liquid pipe are closed according to the sequence of first the gas pipe and then the liquid pipe, and then opened according to the sequence of the gas pipe first and then the liquid pipe.   
     
     
         8 . The control method for an air conditioner according to  claim 7 , wherein the valve assembly comprises a first valve body, a second valve body and a third valve body; and the step of controlling the valve assembly according to the switching information comprises:
 controlling the third valve body to close and then controlling the first valve body to close, according to the switching information of the air conditioner switching from a cooling mode to a heating mode;   controlling the second valve body to open, based on a first time duration in which the first valve body is closed reaching a first time duration threshold; and   controlling the first valve body to open, based on a second time duration in which the second valve body is opened reaching a second time duration threshold.   
     
     
         9 . The control method for an air conditioner according to  claim 7 , wherein the valve assembly comprises a first valve body, a second valve body and a third valve body; and the step of controlling the valve assembly according to the switching information comprises:
 controlling the second valve body to close and then controlling the first valve body to close, according to the switching information of the air conditioner switching from a heating mode to a cooling mode;   controlling the third valve body to open, based on a first time duration in which the first valve body is closed reaching a first time duration threshold; and   controlling the first valve body to open, based on a third time duration in which the third valve body is opened reaching a third time duration threshold.   
     
     
         10 . A computer-readable storage medium on which a computer program is stored, wherein when the computer program is executed by a processor, the control method for an air conditioner according to  claim 7  is implemented.