Air conditioner, refrigerant leakage control method and device thereof and storage medium

Abstract

The invention discloses an air conditioner, a refrigerant leakage control method and device of the air conditioner and a storage medium. The method comprises the steps that the refrigerant concentration in a main air duct is obtained; when the refrigerant concentration is larger than the first preset concentration, the outdoor unit is controlled to be in a shutdown state, a fresh air outlet is controlled to be in a closed state, a fresh air duct and a main air duct are controlled to be in a communicating state, and a main fan and a fresh air fan are controlled to operate in the first direction; and a refrigerant in the main air duct is discharged out of a room through the fresh air duct and the fresh air inlet. Therefore, when refrigerant leakage occurs in the indoor unit, the fresh air duct communicates with the main air duct, and the main fan and the fresh air fan are controlled to operate in the first direction, so that the refrigerant in the main air duct can be quickly and efficiently discharged out of the room through the fresh air duct and the fresh air inlet; therefore, potential safety hazards caused by refrigerant leakage are reduced to a certain extent.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to an air conditioner and a refrigerant leakage control method, device and storage medium thereof. Background Art

[0002] In the related art, when the air conditioner is in use, if a refrigerant leak occurs in the indoor unit, the refrigerant in the indoor unit will be discharged into the room by starting the indoor fan, but this method has certain safety hazards.

[0003] It should be noted that the information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the purpose of the present invention is to provide an air conditioner and a refrigerant leakage control method, device and storage medium thereof, which can quickly and efficiently discharge the refrigerant in the main air duct to the outside through the fresh air duct and the fresh air inlet when a refrigerant leaks in the indoor unit by connecting the fresh air duct and the main air duct and controlling the main fan and the fresh air fan to operate in a first direction, thereby reducing the safety hazards caused by the refrigerant leakage to a certain extent.

[0005] To achieve the above-mentioned purpose, a first aspect of an embodiment of the present invention provides a refrigerant leakage control method for an air conditioner, the air conditioner comprising an indoor unit and an outdoor unit, the indoor unit comprising a main air inlet, a main air outlet, a fresh air inlet, a fresh air outlet, a main air duct connecting the main air inlet and the main air outlet, and a fresh air duct connecting the fresh air inlet and the fresh air outlet, a main fan is provided in the main air duct, and a fresh air fan is provided in the fresh air duct, the method comprising: obtaining the refrigerant concentration in the main air duct; when the refrigerant concentration is greater than a first preset concentration, controlling the outdoor unit to be in a shutdown state, controlling the fresh air outlet to be in a closed state, controlling the fresh air duct to be in a connected state with the main air duct, and controlling the main fan and the fresh air fan to operate in a first direction to discharge the refrigerant in the main air duct to the outdoors through the fresh air duct and the fresh air inlet.

[0006] According to the refrigerant leakage control method of the air conditioner according to the embodiment of the present invention, when the refrigerant concentration in the main air duct is greater than the first preset concentration, it is determined that a refrigerant leakage has occurred in the indoor unit, and then the outdoor unit is controlled to be in a shutdown state, and the fresh air outlet is controlled to be in a closed state, and the fresh air duct and the main air duct are controlled to be in a connected state, and the main fan and the fresh air fan are controlled to run in a first direction. In this way, by connecting the fresh air duct and the main air duct, and controlling the main fan and the fresh air fan to run in the first direction, the refrigerant in the main air duct can be quickly and efficiently discharged to the outdoors through the fresh air duct and the fresh air inlet, thereby reducing the safety hazards caused by refrigerant leakage to a certain extent.

[0007] In some embodiments of the present invention, when controlling the main fan to operate in a first direction, the refrigerant leakage control method of the air conditioner also includes: controlling the main fan to operate continuously; or, controlling the main fan to operate intermittently; or, controlling the main fan to operate continuously or intermittently according to the refrigerant concentration.

[0008] In some embodiments of the present invention, the main fan is controlled to run continuously or intermittently according to the refrigerant concentration, including: when the refrigerant concentration is greater than a first preset concentration and less than or equal to a second preset concentration, the main fan is controlled to run intermittently, wherein the first preset concentration is less than the second preset concentration; when the refrigerant concentration is greater than the second preset concentration, the main fan is controlled to run continuously.

[0009] In some embodiments of the present invention, the rotation speed of the main fan is a minimum rotation speed.

[0010] In some embodiments of the present invention, the refrigerant leakage control method of the air conditioner also includes: when the refrigerant concentration is less than or equal to a first preset concentration and greater than a third preset concentration, controlling the outdoor unit to be in a shutdown state, controlling the fresh air outlet to be in a closed state, controlling the fresh air duct and the main air duct to be in a connected state, and controlling the fresh air fan to operate in a first direction to discharge the refrigerant in the main air duct to the outdoors through the fresh air duct and the fresh air inlet, wherein the first preset concentration is greater than the third preset concentration.

[0011] In some embodiments of the present invention, the refrigerant leakage control method of the air conditioner also includes: when the refrigerant concentration is greater than a first preset concentration, controlling the air outlet angle of the main air outlet to be a first preset angle; when the refrigerant concentration is less than or equal to the first preset concentration and greater than a third preset concentration, controlling the air outlet angle of the main air outlet to be a second preset angle, wherein the first preset angle is greater than the second preset angle.

[0012] In some embodiments of the present invention, the refrigerant leakage control method of the air conditioner also includes: when the refrigerant concentration is greater than the first preset concentration, issuing a first-level refrigerant leakage reminder message; when the refrigerant concentration is less than or equal to the first preset concentration and greater than the third preset concentration, issuing a second-level refrigerant leakage reminder message.

[0013] In some embodiments of the present invention, after controlling the fresh air fan to run in a first direction, the refrigerant leakage control method of the air conditioner further includes: when the refrigerant concentration is less than or equal to the difference between the third preset concentration and the preset margin, controlling the indoor unit to be in a shutdown state.

[0014] To achieve the above-mentioned purpose, a second aspect of the present invention provides a computer-readable storage medium having a program stored thereon, which is a refrigerant leakage control method for an air conditioner in any of the above-mentioned embodiments when executed by a processor.

[0015] According to the computer-readable storage medium of an embodiment of the present invention, based on the aforementioned refrigerant leakage control method of the air conditioner, when the refrigerant concentration is greater than a first preset concentration, by connecting the fresh air duct and the main air duct, and controlling the main fan and the fresh air fan to run in a first direction, the refrigerant in the main air duct can be quickly and efficiently discharged to the outdoors through the fresh air duct and the fresh air inlet, thereby reducing the safety hazards caused by refrigerant leakage to a certain extent.

[0016] To achieve the above-mentioned purpose, an embodiment of the third aspect of the present invention provides an air conditioner, comprising: a memory, a processor, and a program stored in the memory and executable on the processor. When the processor executes the program, a refrigerant leakage control method for the air conditioner of any of the above-mentioned embodiments is implemented.

[0017] According to the air conditioner of an embodiment of the present invention, based on the aforementioned refrigerant leakage control method of the air conditioner, when the refrigerant concentration is greater than the first preset concentration, by connecting the fresh air duct and the main air duct, and controlling the main fan and the fresh air fan to run in a first direction, the refrigerant in the main air duct can be quickly and efficiently discharged to the outdoors through the fresh air duct and the fresh air inlet, thereby reducing the safety hazards caused by refrigerant leakage to a certain extent.

[0018] To achieve the above-mentioned purpose, a fourth aspect of the present invention provides a refrigerant leakage control device for an air conditioner, the air conditioner comprising an indoor unit and an outdoor unit, the indoor unit comprising a main air inlet, a main air outlet, a fresh air inlet, a fresh air outlet, a main air duct connecting the main air inlet and the main air outlet, and a fresh air duct connecting the fresh air inlet and the fresh air outlet, a main fan is provided in the main air duct, and a fresh air fan is provided in the fresh air duct, the device comprising: an acquisition module for obtaining the refrigerant concentration in the main air duct; a control module for controlling the outdoor unit to be in a shutdown state when the refrigerant concentration is greater than a first preset concentration, controlling the fresh air outlet to be in a closed state, controlling the fresh air duct to be in a connected state with the main air duct, and controlling the main fan and the fresh air fan to operate in a first direction to discharge the refrigerant in the main air duct to the outdoors through the fresh air duct and the fresh air inlet.

[0019] According to the refrigerant leakage control device of the air conditioner of the embodiment of the present invention, the refrigerant concentration in the main air duct is obtained through the acquisition module, and when the refrigerant concentration is greater than the first preset concentration, the control module determines that the indoor unit has refrigerant leakage, controls the outdoor unit to be in a shutdown state, controls the fresh air outlet to be in a closed state, controls the fresh air duct to be in a connected state with the main air duct, and controls the main fan and the fresh air fan to run in a first direction. In this way, by connecting the fresh air duct and the main air duct, and controlling the main fan and the fresh air fan to run in the first direction, the refrigerant in the main air duct can be quickly and efficiently discharged to the outside through the fresh air duct and the fresh air inlet, thereby reducing the safety hazards caused by refrigerant leakage to a certain extent.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 is a structural block diagram of an indoor unit according to an embodiment of the present invention.

[0023] Figure 2 1 is a flow chart of a refrigerant leakage control method for an air conditioner according to an embodiment of the present invention.

[0024] Figure 3 4 is a flow chart of a refrigerant leakage control method for an air conditioner according to another embodiment of the present invention.

[0025] Figure 4 is a structural block diagram of an air conditioner according to an embodiment of the present invention.

[0026] Figure 5 4 is a structural block diagram of a refrigerant leakage control device for an air conditioner according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0028] The air conditioner and its refrigerant leakage control method, device and storage medium according to the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] In an embodiment of the present invention, the air conditioner includes an indoor unit and an outdoor unit, the indoor unit includes a main air inlet, a main air outlet, a fresh air inlet, a fresh air outlet, a main air duct connecting the main air inlet and the main air outlet, and a fresh air duct connecting the fresh air inlet and the fresh air outlet, a main fan is provided in the main air duct, and a fresh air fan is provided in the fresh air duct.

[0030] The main air inlet is used for indoor air intake, the main air outlet is used for indoor air outlet, the main air duct is used for indoor heat exchange, a main fan is arranged in the main air duct, during the normal operation of the air conditioner, the main fan runs in the second direction (such as forward rotation), the indoor air enters the indoor unit through the main air inlet, and after heat exchange in the main air duct of the indoor unit, it returns to the indoor from the main air outlet to achieve indoor heat exchange. The fresh air inlet is used for outdoor air intake, the fresh air outlet is used for indoor air outlet, and the fresh air duct is used to provide fresh air to the indoor. During the normal operation of the air conditioner, the fresh air fan runs in the second direction, the outdoor air enters the indoor unit through the fresh air inlet, and after heat exchange in the indoor unit, it enters the indoor from the fresh air outlet to provide fresh air to the indoor. In addition, during normal operation of the air conditioner, the main air duct and the fresh air duct are in a non-connected state and the fresh air outlet is in an open state; when refrigerant leakage occurs in the main air duct of the indoor unit, the main air duct and the fresh air duct are in a connected state and the fresh air outlet is in a closed state, and the main fan and the fresh air fan operate in a first direction (such as reverse rotation) to allow the refrigerant leaked in the main air duct to enter the fresh air duct, and then be quickly discharged to the outside through the fresh air duct and the fresh air inlet, thereby reducing the safety hazards caused by refrigerant leakage to a certain extent.

[0031] For example, a cabinet air conditioner is used as an example. The cabinet air conditioner includes an outdoor unit and an indoor unit. Figure 1 As shown, the indoor unit includes a main air inlet 101, a main air outlet 102, a fresh air inlet 103, a fresh air outlet 104, a main air duct 105 connecting the main air inlet 101 and the main air outlet 102, and a fresh air duct 106 connecting the fresh air inlet 103 and the fresh air outlet 104. Two main air inlets 101 are provided, located on both sides of the indoor unit. An air outlet louver 111 is provided at the main air outlet 102 for adjusting the air outlet angle. A main fan 107, a heater 109, an indoor heat exchanger 110, a water tray 112, a heat exchanger connecting pipe 113 connected to the indoor heat exchanger 110, a refrigerant sensor 114 and other components are provided in the main air duct 105. A fresh air fan 108 and other components are disposed in the fresh air duct 106 . A connecting shaft 116 is disposed on the fresh air duct 106 . One end of the connecting shaft 116 is fixed to the fresh air duct 106 , and the other end of the connecting shaft 116 is connected to a hinge 115 .

[0032] The main fan 107 is used to circulate air and deliver cold air or hot air into the indoor space. The speed of the main fan 107 can be adjusted according to demand to control the indoor air flow and temperature distribution; the fresh air fan 108 is used to introduce outdoor air or filtered outdoor air into the room to maintain the quality and ventilation effect of the indoor air; the heater 109 is used to achieve the heating function; the indoor heat exchanger 110 is used to achieve the cooling effect or heating effect of the air conditioner; the air outlet louver 111 is used to guide and distribute the cold air or hot air of the indoor unit; the water receiving tray 112 is used to receive the condensed water generated by the indoor heat exchanger 110; the refrigerant sensor 114 is used to control the indoor air flow and temperature distribution of the indoor air; the indoor air flow is controlled by the air conditioner 110; the indoor air flow is controlled by the air conditioner 110; the indoor air flow is controlled by the air conditioner 111; the indoor air flow is controlled by the air conditioner 110 ... Used to detect the refrigerant concentration in the main air duct 105; the connecting shaft 116 is used to drive the hinge 115 to achieve the connection or disconnection between the fresh air duct 106 and the main air duct 105 and the opening or closing of the fresh air outlet 104. Specifically, when the connecting shaft 116 drives the hinge 115 to be located in a first position (such as a horizontal position), the fresh air duct 106 and the main air duct 105 are in a disconnected state and the fresh air outlet 104 is in an open state; when the connecting shaft 116 drives the hinge 115 to be located in a second position (such as a vertical position), the fresh air duct 106 and the main air duct 105 are in a connected state and the fresh air outlet 104 is in a closed state.

[0033] During normal operation of the air conditioner, the connecting shaft 116 drives the hinge 115 to be located in the first position, so that the fresh air duct 106 and the main air duct 105 are in a non-connected state and the fresh air outlet 104 is in an open state, and the indoor air enters the main air duct 105 from the main air inlet 101, and driven by the main fan 107, after heat exchange through the indoor heat exchanger 110 and the heater 109, it returns to the room through the air outlet louver 111 and the main air outlet 102; the outdoor air enters the fresh air duct 106 through the fresh air inlet 103, and driven by the fresh air fan 108, enters the room through the fresh air outlet 104. When refrigerant leakage occurs in the main air duct 105 of the indoor unit, the connecting shaft 116 drives the hinge 115 to the second position, so that the fresh air duct 106 and the main air duct 105 are in a connected state and the fresh air outlet 104 is in a closed state. Driven by the main fan 107 and the fresh air fan 108, the refrigerant leaked in the main air duct 105 enters the fresh air duct 106, and is quickly discharged to the outside through the fresh air duct 106 and the fresh air inlet 103, so as to reduce the safety hazards caused by the refrigerant leakage.

[0034] Figure 2 1 is a flow chart of a refrigerant leakage control method for an air conditioner according to an embodiment of the present invention.

[0035] like Figure 2 As shown, the refrigerant leakage control method of the air conditioner may include:

[0036] S11: Obtaining the refrigerant concentration in the main air duct.

[0037] Specifically, when a refrigerant leak occurs in the indoor unit of the air conditioner, such as an indoor heat exchanger or a refrigerant pipeline, the leaked refrigerant will be present in the main air duct. Therefore, a refrigerant sensor can be set in the main air duct to detect the refrigerant concentration in the main air duct in real time to determine whether there is a refrigerant leak in the indoor unit and the extent of the refrigerant leak. For example, Figure 1 As shown, a refrigerant sensor can be arranged below the indoor heat exchanger to detect the refrigerant concentration in the main air duct. Since the mass of the refrigerant is heavier than that of the air, arranging the refrigerant sensor below can improve the detection accuracy.

[0038] S13: When the refrigerant concentration is greater than a first preset concentration, the outdoor unit is controlled to be in a shutdown state, the fresh air outlet is controlled to be in a closed state, the fresh air duct and the main air duct are controlled to be in a connected state, and the main fan and the fresh air fan are controlled to operate in a first direction to discharge the refrigerant in the main air duct to the outdoors through the fresh air duct and the fresh air inlet.

[0039] Specifically, the first preset concentration can be set according to actual conditions, and the specific value is not limited here. When the refrigerant concentration is greater than the first preset concentration, it means that there is a refrigerant leak in the indoor unit and the refrigerant concentration is high. At this time, it is necessary to stop the heat exchange and discharge the leaked refrigerant in the indoor unit in time. At this time, the outdoor unit is controlled to be in a shutdown state, which can be specifically to control the compressor and outdoor fan in the outdoor unit to stop running, and at the same time control the fresh air duct and the main air duct to be in a connected state and the fresh air outlet to be in a closed state, and control the main fan and the fresh air fan to run in the first direction (such as reverse) to discharge the refrigerant in the main air duct to the outside through the fresh air duct and the fresh air inlet.

[0040] For example, Figure 1As shown, when the refrigerant concentration in the main air duct 105 is greater than the first preset concentration, it can be considered that the refrigerant leakage of the indoor unit is relatively serious and the leaked refrigerant needs to be discharged as soon as possible. At this time, the outdoor unit is controlled to be in a shutdown state to stop the circulation of the refrigerant, and at the same time, the connecting shaft 116 is controlled to drive the hinge 115 to be in the second position, that is, the hinge 115 in the fresh air duct 106 is adjusted from a horizontal state to a downward vertical state, so that the fresh air duct 106 is in a connected state with the main air duct 105 and the fresh air outlet 104 is in a closed state, and the main fan 107 and the fresh air outlet 104 are controlled to be in a closed state. The fan 108 operates in a first direction (such as reverse), wherein the main fan 107 can suck the refrigerant leaked in the main air duct 105 back to the end of the main air duct 105, thereby preventing the refrigerant in the main air duct 105 from being discharged into the room through the main air outlet 102; the fresh air fan 108 can suck the refrigerant at the end of the main air duct 105 into the fresh air duct 106, and discharge it to the outside through the fresh air duct 106 and the fresh air inlet 103; and since the fresh air outlet 104 is in a closed state, the leaked refrigerant is prevented from entering the room through the fresh air duct 106 and the fresh air outlet 104. In this way, the refrigerant can be discharged to the outside as quickly as possible, and since the leaked refrigerant is directly discharged to the outside, the safety hazard caused by the refrigerant leakage is reduced to a certain extent. Moreover, when there is a refrigerant leakage in the indoor unit, the main fan and the fresh air fan are turned on at the same time. Compared with only turning on the main fan, the occurrence of partial refrigerant leakage to the indoor unit caused by only turning on the main fan can be reduced. Compared with only turning on the fresh air fan, it has a higher discharge efficiency.

[0041] In the above embodiment, when the refrigerant concentration in the main air duct is greater than the first preset concentration, it is determined that there is a refrigerant leakage in the indoor unit, and then the outdoor unit is controlled to be in a shutdown state, and the fresh air outlet is controlled to be in a closed state, and the fresh air duct and the main air duct are controlled to be in a connected state, and the main fan and the fresh air fan are controlled to operate in a first direction. In this way, the refrigerant in the main air duct can be quickly and efficiently discharged to the outdoors through the fresh air duct and the fresh air inlet, thereby reducing the safety hazards caused by refrigerant leakage to a certain extent.

[0042] In some embodiments, when controlling the main fan to operate in a first direction, the refrigerant leakage control method of the air conditioner also includes: controlling the main fan to operate continuously; or, controlling the main fan to operate intermittently; or, controlling the main fan to operate continuously or intermittently according to the refrigerant concentration.

[0043] Specifically, since the main fan is mainly used to suck the refrigerant leaking from the main air duct back to the end of the main air duct, there are many ways to control it. The first is to control the main fan to run continuously to speed up the speed of sucking the refrigerant back to the end of the main air duct and improve the efficiency of refrigerant discharge; the second is to control the main fan to run intermittently, that is, to control the main fan to run for a period of time and then stop for a period of time, then run for a period of time and then stop for a period of time, and repeat this process. This can not only suck the refrigerant back to the end of the main air duct, but also reduce energy consumption to a certain extent; the third is to control the main fan to run continuously or intermittently according to the refrigerant concentration. For example, when the refrigerant concentration is high, the main fan is controlled to run continuously to speed up the efficiency of refrigerant discharge, and when the refrigerant concentration is low, the main fan is controlled to run intermittently to reduce energy consumption while discharging the refrigerant.

[0044] It should be noted that the above three methods can be selected based on actual needs and are not specifically limited here.

[0045] For example, Figure 1 As shown, when the main fan 107 is controlled to run in the first direction, the main fan 107 can be controlled to run continuously at the breeze gear, or the main fan 107 can be controlled to run intermittently at the breeze gear, or the corresponding control mode can be selected according to the refrigerant concentration, such as when the refrigerant concentration is high, the main fan 107 is controlled to run continuously at the breeze gear, and when the refrigerant concentration is low, the main fan 107 is controlled to run intermittently at the breeze gear. Among them, the breeze gear refers to a gear with a lower wind speed, such as the lowest wind speed gear, so that the refrigerant leaked in the main air duct 105 can be quickly sucked back to the end of the main air duct 105, and a large draft feeling will not be generated, reducing the impact on the user.

[0046] In some embodiments, the main fan is controlled to run continuously or intermittently according to the refrigerant concentration, including: when the refrigerant concentration is greater than a first preset concentration and less than or equal to a second preset concentration, the main fan is controlled to run intermittently, wherein the first preset concentration is less than the second preset concentration; when the refrigerant concentration is greater than the second preset concentration, the main fan is controlled to run continuously.

[0047] That is to say, when the refrigerant concentration is high, the main fan is controlled to run continuously to speed up the efficiency of refrigerant discharge, and when the refrigerant concentration is low, the main fan is controlled to run intermittently to reduce energy consumption while discharging the refrigerant.

[0048] For example, Figure 1 As shown, when the refrigerant concentration is greater than the first preset concentration and less than or equal to the second preset concentration, the main fan 107 can be controlled to run intermittently at the breeze gear; when the refrigerant concentration is greater than the second preset concentration, the main fan 107 can be controlled to run continuously at the breeze gear. The first preset concentration and the second preset concentration can be set according to actual conditions.

[0049] It should be noted that during the continuous or intermittent operation of the main fan 107, the fresh air fan 108 operates continuously to efficiently discharge the refrigerant at the end of the main air duct 105 to the outside through the fresh air duct 106 and the fresh air inlet 103.

[0050] In some embodiments, the refrigerant leakage control method of the air conditioner also includes: when the refrigerant concentration is less than or equal to a first preset concentration and greater than a third preset concentration, controlling the outdoor unit to be in a shutdown state, controlling the fresh air outlet to be in a closed state, controlling the fresh air duct and the main air duct to be in a connected state, and controlling the fresh air fan to operate in a first direction to discharge the refrigerant in the main air duct to the outdoors through the fresh air duct and the fresh air inlet, wherein the first preset concentration is greater than the third preset concentration.

[0051] Specifically, the third preset concentration can be set according to actual needs, and the specific value is not limited here. When the refrigerant concentration in the main air duct is less than or equal to the first preset concentration and greater than the third preset concentration, it can be considered that the indoor unit has a refrigerant leak, but the refrigerant leak is relatively minor. At this time, the outdoor unit is controlled to be in a shutdown state, specifically, the compressor and outdoor fan in the outdoor unit are controlled to stop running, and at the same time, the fresh air duct is controlled to be connected to the main air duct and the fresh air outlet is controlled to be closed, and the fresh air fan is controlled to run in the first direction (such as reverse) to discharge the refrigerant in the main air duct through the fresh air duct and the fresh air inlet to the outside.

[0052] For example, Figure 1 As shown, when the refrigerant concentration in the main air duct 105 is less than or equal to the first preset concentration and greater than the third preset concentration, it can be considered that the refrigerant leakage of the indoor unit is relatively slight. At this time, the leaked refrigerant can be discharged as soon as possible while ensuring a certain comfort level. At this time, the outdoor unit is controlled to be in a shutdown state to stop the circulation of the refrigerant, and at the same time, the connecting shaft 116 is controlled to drive the hinge 115 to be in the second position, that is, the hinge 115 in the fresh air duct 106 is adjusted from a horizontal state to a downward vertical state, so that the fresh air The fresh air duct 106 is in a connected state with the main air duct 105 and the fresh air outlet 104 is in a closed state, and the fresh air fan 108 is controlled to run in a first direction (such as reverse), wherein the fresh air fan 108 can suck the refrigerant at the end of the main air duct 105 into the fresh air duct 106, and discharge it to the outside through the fresh air duct 106 and the fresh air inlet 103, and since the fresh air outlet 104 is in a closed state, the leaked refrigerant is prevented from entering the room through the fresh air duct 106 and the fresh air outlet 104.

[0053] It should be noted that when the refrigerant concentration in the main air duct 105 is greater than the first preset concentration, it is considered that a serious refrigerant leakage has occurred, and therefore it is necessary to control the main air fan 107 and the fresh air fan 108 to operate in a first direction, so as to discharge the refrigerant in the main air duct 105 through the fresh air duct 106 and the fresh air inlet 103 to the outside as quickly as possible; when the refrigerant concentration in the main air duct 105 is less than or equal to the first preset concentration and greater than the third preset concentration, it is considered that the refrigerant leakage is relatively minor, and therefore the fresh air fan 108 is controlled to operate in the first direction, so that the refrigerant in the main air duct 105 can be discharged to the outside through the fresh air duct 106 and the fresh air inlet 103, thereby realizing hierarchical control of the main air fan and the fresh air fan according to the change of the refrigerant concentration in the main air duct, and more reasonably solving the refrigerant leakage crisis.

[0054] In this way, when the refrigerant leakage of the indoor unit is relatively minor, the refrigerant in the main air duct will be discharged outdoors through the fresh air duct and the fresh air inlet in advance to avoid the refrigerant leakage from worsening due to untimely treatment, resulting in the air conditioner failing to achieve the expected heat exchange effect during operation and causing harm to the human body.

[0055] In some embodiments, the refrigerant leakage control method of the air conditioner also includes: when the refrigerant concentration is greater than a first preset concentration, controlling the air outlet angle of the main air outlet to be a first preset angle; when the refrigerant concentration is less than or equal to the first preset concentration and greater than a third preset concentration, controlling the air outlet angle of the main air outlet to be a second preset angle, wherein the first preset angle is greater than the second preset angle.

[0056] That is to say, the outlet angle of the main air outlet when the refrigerant leakage is more serious is greater than the outlet angle of the main air outlet when the refrigerant leakage is relatively minor, that is, the outlet angle of the main air outlet is positively correlated with the degree of refrigerant leakage, so as to maintain an appropriate circulation gap, thereby achieving the discharge of the refrigerant leaked in the main air duct to the outside. Among them, the outlet angle of the main air outlet can be achieved by adjusting the inclination angle of the air outlet louver at the main air outlet.

[0057] For example, Figure 1As shown, when the refrigerant concentration in the main air duct 105 is greater than the first preset concentration, since the refrigerant leakage is more serious at this time, the main fan 107 needs to be turned on and operated in the first direction. Therefore, the inclination angle of the air outlet louver 111 can be adjusted so that the fence of the air outlet louver 111 is tilted upward or downward so that the air outlet angle of the main air outlet 102 is a larger first preset angle. In this way, by providing a larger flow gap, the main fan 107 can quickly suck the refrigerant in the main air duct 105 back to the end of the main air duct 105 under a smaller negative pressure, and then the refrigerant at the end of the main air duct 105 is discharged to the outside through the fresh air duct 106 and the fresh air inlet 103 by the fresh air fan 108. When the refrigerant concentration in the main air duct 105 is less than or equal to the first preset concentration and greater than the third preset concentration, since the refrigerant leakage is relatively slight at this time, there is no need to turn on the main fan 107. Therefore, the fence of the air outlet louver 111 can be adjusted to tilt upward or downward to make the air outlet angle of the main air outlet 102 a smaller second preset angle. In this way, by providing a suitable circulation gap, on the one hand, the fresh air fan 108 can discharge the refrigerant at the end of the main air duct 105 through the fresh air duct 106 and the fresh air inlet 103 to the outside under a small negative pressure. On the other hand, it can prevent part of the refrigerant from entering the room due to the excessive air outlet angle of the main air outlet 102.

[0058] In this way, when the refrigerant concentration is at different levels, the air outlet angle of the main air outlet is controlled to be a corresponding preset angle, so that the refrigerant can be discharged to the outside more reasonably.

[0059] In some embodiments, the refrigerant leakage control method of the air conditioner also includes: when the refrigerant concentration is greater than the first preset concentration, issuing a first-level refrigerant leakage reminder message; when the refrigerant concentration is less than or equal to the first preset concentration and greater than the third preset concentration, issuing a second-level refrigerant leakage reminder message.

[0060] That is to say, when the refrigerant concentration in the main air duct is greater than the first preset concentration, it can be considered that the refrigerant leakage is relatively serious at this time, and a first-level refrigerant leakage reminder message is issued, such as: controlling the air conditioner display panel to display "a first-level refrigerant leakage occurs in the air conditioner", or displaying "a first-level refrigerant leakage occurs in the air conditioner" on the user terminal interface, or broadcasting "a first-level refrigerant leakage occurs in the air conditioner" through voice. When the refrigerant concentration in the main air duct is less than or equal to the first preset concentration and greater than the third preset concentration, it can be considered that the refrigerant leakage is relatively minor at this time, and a second-level refrigerant leakage reminder message is issued, such as: controlling the air conditioner display panel to display "a second-level refrigerant leakage occurs in the air conditioner", or displaying "a second-level refrigerant leakage occurs in the air conditioner" on the user terminal interface, or broadcasting "a second-level refrigerant leakage occurs in the air conditioner" through voice. In this way, the user is promptly reminded of the refrigerant leakage fault of the air conditioner so that the user can repair and inspect the air conditioner.

[0061] In some embodiments, after controlling the fresh air fan to run in the first direction, the refrigerant leakage control method of the air conditioner further includes: when the refrigerant concentration is less than or equal to the difference between the third preset concentration and the preset margin, controlling the indoor unit to be in a shutdown state.

[0062] That is, when the refrigerant concentration is less than or equal to the difference between the third preset concentration and the preset margin, it means that the leaked refrigerant in the indoor unit is basically discharged to the outside, and the indoor unit can be controlled to be in a shutdown state. The preset margin can be set according to actual conditions, and the specific value is not limited here.

[0063] For example, Figure 1 As shown, when the refrigerant concentration in the main air duct 105 is greater than the first preset concentration, or is less than or equal to the first preset concentration and greater than the third preset concentration, the fresh air fan 108 is controlled to operate in the first direction. When the fresh air fan 108 discharges the refrigerant in the end of the main air duct 105 to the outdoors through the fresh air duct 106 and the fresh air inlet 103, the refrigerant concentration in the main air duct 105 is detected in real time by the refrigerant sensor 114. When it is detected that the refrigerant concentration is less than or equal to the difference between the third preset concentration and the preset margin, it can be considered that the leaked refrigerant has been reduced to a safe range, and therefore the indoor unit can be controlled to be in a shutdown state.

[0064] As a specific example, Figure 3 As shown, the refrigerant leakage control method of the air conditioner includes:

[0065] S21: The air conditioner is powered on, and the refrigerant sensor continues to operate to detect the refrigerant concentration in the main air duct.

[0066] S22: Determine whether the refrigerant concentration is greater than the third preset concentration. If so, proceed to S23; if not, proceed to S34.

[0067] S23: Determine whether the refrigerant concentration is greater than the first preset concentration. If so, proceed to S24; if not, proceed to S29.

[0068] S24: The outdoor unit is controlled to be in shutdown state and a first-level refrigerant leakage reminder message is issued.

[0069] S25: Adjust the indoor air outlet louvers to tilt upward or downward so that the air outlet angle of the main air outlet is a first preset angle to prevent direct blowing.

[0070] S26: Control the hinge in the fresh air duct to move vertically downward to block the fresh air outlet and connect the fresh air duct with the main air duct.

[0071] S27: Control the main fan to reverse and run continuously or intermittently at the breeze speed, and control the fresh air fan to reverse and run continuously, so as to suck the refrigerant in the main air duct back to the end of the main air duct through the main fan, and use the fresh air fan to pass the refrigerant at the end of the main air duct through the fresh air duct and discharge it to the outside through the fresh air inlet.

[0072] S28: The refrigerant sensor operates continuously to detect the refrigerant concentration in the main air duct.

[0073] S29: The control outdoor unit is in shutdown state and a secondary refrigerant leakage reminder message is issued.

[0074] S30: Adjust the indoor air outlet louvers to tilt upward or downward so that the air outlet angle of the main air outlet is a second preset angle.

[0075] S31: Control the hinge in the fresh air duct to move vertically downward to block the fresh air outlet and connect the fresh air duct with the main air duct.

[0076] S32: Control the fresh air fan to reverse and run continuously, so that the refrigerant at the end of the main air duct passes through the fresh air duct through the fresh air fan and is discharged to the outside through the fresh air inlet.

[0077] S33: When the refrigerant concentration is less than or equal to the difference between the third preset concentration and the preset margin, the indoor unit is controlled to be in a shutdown state.

[0078] S34: The air conditioner operates normally.

[0079] In the above embodiment, the refrigerant concentration in the main air duct is obtained by the refrigerant sensor. When the refrigerant concentration is greater than the first preset concentration, the main air fan and the fresh air fan are controlled to operate in the first direction to discharge the refrigerant at the end of the main air duct through the fresh air duct and the fresh air inlet to the outside; when the refrigerant concentration is less than or equal to the first preset concentration and greater than the third preset concentration, the fresh air fan is controlled to operate in the first direction to discharge the refrigerant at the end of the main air duct through the fresh air duct and the fresh air inlet to the outside. In this way, by connecting the fresh air duct and the main air duct, and controlling the main air fan and the fresh air fan to operate in the first direction, the refrigerant in the main air duct can be quickly and efficiently discharged to the outside through the fresh air duct and the fresh air inlet, thereby reducing the safety hazards caused by refrigerant leakage to a certain extent.

[0080] It should be noted that the specific numerical values ​​mentioned above are only used as examples to illustrate the implementation of the present invention in detail, and should not be understood as limiting the present invention. In other examples or implementations or embodiments, other numerical values ​​can be selected according to the present invention, and are not specifically limited here.

[0081] Corresponding to the above embodiments, an embodiment of the present invention further provides a computer-readable storage medium having a program stored thereon, and when the program is executed by a processor, it is a refrigerant leakage control method for an air conditioner in any of the above embodiments.

[0082] According to the computer-readable storage medium of an embodiment of the present invention, when the refrigerant concentration is greater than a first preset concentration, it is determined that a refrigerant leakage occurs in the indoor unit, and the outdoor unit is controlled to be in a shutdown state, and the fresh air outlet is controlled to be in a closed state, and the fresh air duct and the main air duct are controlled to be in a connected state, and the main fan and the fresh air fan are controlled to run in a first direction. In this way, by connecting the fresh air duct and the main air duct, and controlling the main fan and the fresh air fan to run in the first direction, the refrigerant in the main air duct can be quickly and efficiently discharged to the outdoors through the fresh air duct and the fresh air inlet, thereby reducing the safety hazards caused by refrigerant leakage to a certain extent.

[0083] It should be pointed out that the above-mentioned explanation of the embodiment and beneficial effects of the refrigerant leakage control method of the air conditioner is also applicable to the computer-readable storage medium of the embodiment of the present invention, and will not be elaborated here in order to avoid redundancy.

[0084] Corresponding to the above embodiment, an embodiment of the present invention further provides an air conditioner.

[0085] Figure 4 FIG. 1 is a block diagram of an air conditioner according to an embodiment of the present invention. Figure 4 As shown, the air conditioner 300 includes: a memory 302, a processor 304, and a program 306 stored in the memory 302 and executable on the processor 304. When the processor 304 executes the program 306, the refrigerant leakage control method of the air conditioner in any of the above embodiments is implemented.

[0086] According to the air conditioner of an embodiment of the present invention, when the refrigerant concentration is greater than a first preset concentration, it is determined that a refrigerant leakage occurs in the indoor unit, and the outdoor unit is controlled to be in a shutdown state, and the fresh air outlet is controlled to be in a closed state, and the fresh air duct and the main air duct are controlled to be in a connected state, and the main fan and the fresh air fan are controlled to operate in a first direction. In this way, by connecting the fresh air duct and the main air duct, and controlling the main fan and the fresh air fan to operate in the first direction, the refrigerant in the main air duct can be quickly and efficiently discharged to the outdoors through the fresh air duct and the fresh air inlet, thereby reducing the safety hazards caused by refrigerant leakage to a certain extent.

[0087] It should be pointed out that the above-mentioned explanation of the embodiment and beneficial effects of the refrigerant leakage control method of the air conditioner is also applicable to the air conditioner 300 of the embodiment of the present invention, and will not be elaborated here in order to avoid redundancy.

[0088] Corresponding to the above-mentioned embodiment, an embodiment of the present invention further provides a refrigerant leakage control device for an air conditioner.

[0089] The air conditioner includes an indoor unit and an outdoor unit. Figure 1 As shown, the indoor unit 100 includes a main air inlet 101, a main air outlet 102, a fresh air inlet 103, a fresh air outlet 104, a main air duct 105 connecting the main air inlet 101 and the main air outlet 102, and a fresh air duct 106 connecting the fresh air inlet 103 and the fresh air outlet 104. A main fan 107 is provided in the main air duct 105, and a fresh air fan 108 is provided in the fresh air duct 106.

[0090] Figure 5 FIG. 1 is a block diagram of a refrigerant leakage control device for an air conditioner according to an embodiment of the present invention. Figure 5 As shown, the refrigerant leakage control device 500 of the air conditioner includes: an acquisition module 502, used to obtain the refrigerant concentration in the main air duct; a control module 504, used to control the outdoor unit to be in a shutdown state when the refrigerant concentration is greater than a first preset concentration, and control the fresh air outlet to be in a closed state and control the fresh air duct and the main air duct to be in a connected state, and control the main fan and the fresh air fan to operate in a first direction to discharge the refrigerant in the main air duct to the outdoors through the fresh air duct and the fresh air inlet.

[0091] According to the refrigerant leakage control device of the air conditioner of the embodiment of the present invention, the refrigerant concentration in the main air duct is obtained by the acquisition module, and when the refrigerant concentration is greater than the first preset concentration, the control module determines that the indoor unit has refrigerant leakage, controls the outdoor unit to be in a shutdown state, controls the fresh air outlet to be in a closed state, controls the fresh air duct to be in a connected state with the main air duct, and controls the main fan and the fresh air fan to run in a first direction. In this way, by connecting the fresh air duct and the main air duct, and controlling the main fan and the fresh air fan to run in the first direction, the refrigerant in the main air duct can be quickly and efficiently discharged to the outside through the fresh air duct and the fresh air inlet, thereby reducing the safety hazards caused by refrigerant leakage to a certain extent.

[0092] In some embodiments of the present invention, the control module 504 is specifically used to: control the main fan to run continuously; or, control the main fan to run intermittently; or, control the main fan to run continuously or intermittently according to the refrigerant concentration.

[0093] In some embodiments of the present invention, the control module 504 is specifically used to: when the refrigerant concentration is greater than a first preset concentration and less than or equal to a second preset concentration, control the main fan to run intermittently, wherein the first preset concentration is less than the second preset concentration; when the refrigerant concentration is greater than the second preset concentration, control the main fan to run continuously.

[0094] In some embodiments of the present invention, the rotation speed of the main fan is a minimum rotation speed.

[0095] In some embodiments of the present invention, the control module 504 is also used to: when the refrigerant concentration is less than or equal to a first preset concentration and greater than a third preset concentration, control the outdoor unit to be in a shutdown state, control the fresh air outlet to be in a closed state, control the fresh air duct and the main air duct to be in a connected state, and control the fresh air fan to operate in a first direction to discharge the refrigerant in the main air duct to the outdoors through the fresh air duct and the fresh air inlet, wherein the first preset concentration is greater than the third preset concentration.

[0096] In some embodiments of the present invention, the control module 504 is specifically used to: when the refrigerant concentration is greater than the first preset concentration, control the air outlet angle of the main air outlet to be the first preset angle; when the refrigerant concentration is less than or equal to the first preset concentration and greater than the third preset concentration, control the air outlet angle of the main air outlet to be the second preset angle, wherein the first preset angle is greater than the second preset angle.

[0097] In some embodiments of the present invention, the control module 504 is specifically used to: issue a first-level refrigerant leakage reminder message when the refrigerant concentration is greater than the first preset concentration; issue a second-level refrigerant leakage reminder message when the refrigerant concentration is less than or equal to the first preset concentration and greater than the third preset concentration.

[0098] In some embodiments of the present invention, the control module 504 is specifically used to: when the refrigerant concentration is less than or equal to the difference between the third preset concentration and the preset margin, control the indoor unit to be in a shutdown state.

[0099] It should be pointed out that the above-mentioned explanation of the embodiment and beneficial effects of the refrigerant leakage control method for the air conditioner is also applicable to the refrigerant leakage control device 500 for the air conditioner according to the embodiment of the present invention, and will not be elaborated here in order to avoid redundancy.

[0100] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0101] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0102] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0103] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0104] In addition, the terms "first", "second", etc. used in the embodiments of the present invention are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance, or implicitly indicating the number of technical features indicated in the present embodiment. Therefore, the features defined by the terms "first", "second", etc. in the embodiments of the present invention can explicitly or implicitly indicate that at least one of the features is included in the embodiment. In the description of the present invention, the meaning of the word "multiple" is at least two or two and above, such as two, three, four, etc., unless otherwise clearly and specifically defined in the embodiments. Relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise", or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0105] In the present invention, unless otherwise clearly specified or limited in the embodiments, the terms "installed", "connected", "connected" and "fixed" etc. in the embodiments should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integrated connection. It can be understood that it can also be a mechanical connection, an electrical connection, etc.; of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements, or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific implementation situation.

[0106] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device, electronic device, and computer-readable storage medium embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0107] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A method for controlling refrigerant leakage of an air conditioner, characterized in that: The air conditioner comprises an indoor unit and an outdoor unit, the indoor unit comprises a main air inlet, a main air outlet, a fresh air inlet, a fresh air outlet, a main air duct connecting the main air inlet and the main air outlet, and a fresh air duct connecting the fresh air inlet and the fresh air outlet, a main fan is arranged in the main air duct, and a fresh air fan is arranged in the fresh air duct, and the method comprises: Obtaining the refrigerant concentration in the main air duct; When the refrigerant concentration is greater than a first preset concentration, the outdoor unit is controlled to be in a shutdown state, the fresh air outlet is controlled to be in a closed state, the fresh air duct and the main air duct are controlled to be in a connected state, and the main fan and the fresh air fan are controlled to operate in a first direction to discharge the refrigerant in the main air duct to the outdoors through the fresh air duct and the fresh air inlet.

2. The method according to claim 1, characterized in that When controlling the main fan to run in the first direction, the method further includes: Controlling the main fan to run continuously; or, Controlling the main fan to run intermittently; or, The main fan is controlled to run continuously or intermittently according to the refrigerant concentration.

3. The method according to claim 2, characterized in that The controlling the main fan to run continuously or intermittently according to the refrigerant concentration includes: When the refrigerant concentration is greater than the first preset concentration and less than or equal to the second preset concentration, controlling the main fan to run intermittently, wherein the first preset concentration is less than the second preset concentration; When the refrigerant concentration is greater than the second preset concentration, the main fan is controlled to run continuously.

4. The method according to claim 2 or 3, characterized in that: The rotation speed of the main fan is the minimum rotation speed.

5. The method according to claim 1, characterized in that The method further comprises: When the refrigerant concentration is less than or equal to the first preset concentration and greater than the third preset concentration, the outdoor unit is controlled to be in a shutdown state, the fresh air outlet is controlled to be in a closed state, the fresh air duct and the main air duct are controlled to be in a connected state, and the fresh air fan is controlled to operate in the first direction to discharge the refrigerant in the main air duct to the outdoors through the fresh air duct and the fresh air inlet, wherein the first preset concentration is greater than the third preset concentration.

6. The method according to claim 5, characterized in that The method further comprises: When the refrigerant concentration is greater than the first preset concentration, controlling the air outlet angle of the main air outlet to be a first preset angle; When the refrigerant concentration is less than or equal to the first preset concentration and greater than the third preset concentration, the air outlet angle of the main air outlet is controlled to be a second preset angle, wherein the first preset angle is greater than the second preset angle.

7. The method according to claim 5, characterized in that The method further comprises: When the refrigerant concentration is greater than the first preset concentration, a first-level refrigerant leakage reminder message is issued; When the refrigerant concentration is less than or equal to the first preset concentration and greater than the third preset concentration, a secondary refrigerant leakage reminder message is issued.

8. The method according to claim 5, characterized in that After controlling the fresh air fan to run in the first direction, the method further includes: When the refrigerant concentration is less than or equal to the difference between the third preset concentration and the preset margin, the indoor unit is controlled to be in a shutdown state.

9. A computer-readable storage medium, characterized in that: A program is stored thereon, and when the program is executed by a processor, a refrigerant leakage control method for an air conditioner according to any one of claims 1 to 8 is implemented.

10. An air conditioner, characterized in that: include: A memory, a processor, and a program stored in the memory and executable on the processor, wherein when the processor executes the program, the refrigerant leakage control method for the air conditioner according to any one of claims 1 to 8 is implemented.

11. A refrigerant leakage control device for an air conditioner, characterized in that: The air conditioner comprises an indoor unit and an outdoor unit, the indoor unit comprises a main air inlet, a main air outlet, a fresh air inlet, a fresh air outlet, a main air duct connecting the main air inlet and the main air outlet, and a fresh air duct connecting the fresh air inlet and the fresh air outlet, a main fan is arranged in the main air duct, and a fresh air fan is arranged in the fresh air duct, and the device comprises: An acquisition module, used for acquiring the refrigerant concentration in the main air duct; A control module is used to control the outdoor unit to be in a shutdown state, control the fresh air outlet to be in a closed state, control the fresh air duct and the main air duct to be in a connected state, and control the main fan and the fresh air fan to operate in a first direction to discharge the refrigerant in the main air duct to the outdoors through the fresh air duct and the fresh air inlet when the refrigerant concentration is greater than a first preset concentration.

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