Air conditioner, control method thereof and storage medium

Abstract

The invention discloses an air conditioner, a control method thereof and a storage medium. The method comprises the steps that when the air conditioner operates in a heating mode and refrigerant leakage happens to an indoor heat exchanger, a compressor is controlled to stop, a heat exchange cabin and a fan cabin are isolated, an air inlet is opened, and an indoor fan and an electric auxiliary heating device are controlled to work; under the action of the indoor draught fan, indoor air sequentially enters the draught fan cabin and the air outlet cabin through the air inlet, is heated by the electric auxiliary heating device and then returns indoors through the air outlet. Thus, when refrigerant leakage happens to the indoor heat exchanger, the indoor heat exchanger is isolated, the electric auxiliary heating device is in the working state, the air conditioner can continuously supply heat, and the performance of the air conditioner is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to a control method for an air conditioner, an air conditioner, a computer-readable storage medium and another air conditioner. Background Art

[0002] During the operation of the air conditioner, refrigerant leakage may occur. In the related art, when refrigerant leakage occurs, the air conditioner is directly controlled to shut down, resulting in the air conditioner being unable to continue heating. Summary of the invention

[0003] 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 first object of the present invention is to provide a control method for an air conditioner, which can keep the air conditioner heating continuously by isolating the indoor heat exchanger and keeping the electric auxiliary heating device in working state when the indoor heat exchanger of the air conditioner leaks refrigerant, thereby effectively improving the performance of the air conditioner.

[0004] A second object of the present invention is to provide a computer-readable storage medium.

[0005] The third object of the present invention is to provide an air conditioner.

[0006] A fourth object of the present invention is to provide another air conditioner.

[0007] To achieve the above-mentioned purpose, a first embodiment of the present invention proposes a control method for an air conditioner, the air conditioner comprises an indoor unit and an outdoor unit, the indoor unit comprises a heat exchange chamber, a fan chamber and an air outlet chamber which are connected in sequence, the heat exchange chamber is provided with an indoor heat exchanger, the fan chamber is provided with an indoor fan and an air inlet, the air outlet chamber is provided with an electric auxiliary heating device and an air outlet, the outdoor unit comprises a compressor, and the method comprises: when the air conditioner is operated in a heating mode and a refrigerant leak occurs in the indoor heat exchanger, the compressor is controlled to stop, the heat exchange chamber and the fan chamber are isolated, the air inlet is opened, and the indoor fan and the electric auxiliary heating device are controlled to work; wherein, under the action of the indoor fan, the indoor air enters the fan chamber and the air outlet chamber in sequence through the air inlet, is heated by the electric auxiliary heating device, and then returns to the room through the air outlet.

[0008] According to the control method of the air conditioner of the embodiment of the present invention, when the air conditioner is operated in the heating mode and the indoor heat exchanger has a refrigerant leak, the heat exchange compartment and the fan compartment are isolated, that is, the indoor heat exchanger is isolated, and the air inlet is opened, and the indoor fan and the electric auxiliary heating device are controlled to work, so that the indoor air enters the fan compartment and the air outlet compartment in sequence through the air inlet, and returns to the room through the air outlet after being heated by the electric auxiliary heating device. In this way, when the indoor heat exchanger of the air conditioner has a refrigerant leak, by isolating the indoor heat exchanger and keeping the electric auxiliary heating device in working state, the air conditioner can continue to provide heating, effectively improving the performance of the air conditioner.

[0009] According to one embodiment of the present invention, when controlling the operation of the indoor fan and the electric auxiliary heating device, the method further includes: obtaining the indoor ambient temperature and the indoor target temperature; and determining the wind speed of the indoor fan and the heating level of the electric auxiliary heating device according to the temperature difference between the indoor target temperature and the indoor ambient temperature.

[0010] According to one embodiment of the present invention, the indoor unit also includes an exhaust port arranged in the heat exchange chamber and an exhaust fan arranged corresponding to the exhaust port. When isolating the heat exchange chamber and the fan chamber, the method also includes: controlling the exhaust port to open, and controlling the exhaust fan to work; wherein, under the action of the exhaust fan, the leaked refrigerant is discharged from the heat exchange chamber through the exhaust port.

[0011] According to one embodiment of the present invention, after the leaked refrigerant is discharged from the heat exchange chamber through the exhaust port, the method further includes: obtaining the refrigerant content of the heat exchange chamber; when the refrigerant content is less than or equal to a preset content, connecting the heat exchange chamber and the fan chamber, closing the air inlet and the exhaust port, and controlling the exhaust fan to stop.

[0012] According to one embodiment of the present invention, the fan compartment is provided with an isolation component, and the method further includes: controlling the isolation component to be in an isolation state to isolate the fan compartment and the heat exchange compartment, while opening the air inlet; controlling the isolation component to be in a non-isolation state to connect the fan compartment and the heat exchange compartment, while closing the air inlet.

[0013] According to one embodiment of the present invention, the heat exchange cabin also includes a return air outlet, and the method also includes: when the air conditioner is operating in a heating mode and there is no refrigerant leakage in the indoor heat exchanger, controlling the compressor, the indoor fan and the electric auxiliary heating device to operate; wherein, under the action of the indoor fan, the indoor air enters the indoor unit through the return air outlet, is heated by the indoor heat exchanger and the electric auxiliary heating device, and then returns to the room through the air outlet.

[0014] According to one embodiment of the present invention, when controlling the operation of the compressor and the electric auxiliary heating device, the method further includes: obtaining a first enthalpy value of the return air outlet, a second enthalpy value of the air outlet and the air volume of the indoor fan; determining the heating amount of the air conditioner according to the first enthalpy value, the second enthalpy value and the air volume; when the heating amount is less than or equal to the first preset heating amount and the operating frequency of the compressor is less than or equal to the maximum allowable frequency of the compressor, increasing the operating frequency of the compressor; when the heating amount is less than or equal to the first preset heating amount and the operating frequency of the compressor is greater than the maximum allowable frequency, controlling the electric auxiliary heating device to operate at a first heating level; when the heating amount is greater than the first preset heating amount and less than or equal to the second preset heating amount, controlling the electric auxiliary heating device to operate at a second heating level; when the heating amount is greater than the second preset heating amount and less than or equal to the third preset heating amount, controlling the electric auxiliary heating device to operate at a third heating level.

[0015] To achieve the above object, a second embodiment of the present invention provides a computer-readable storage medium having a program stored thereon, which, when executed by a processor, implements the air conditioner control method of any of the above embodiments.

[0016] According to the computer-readable storage medium of an embodiment of the present invention, by executing the control method of the above-mentioned air conditioner, when refrigerant leakage occurs in the indoor heat exchanger, the indoor heat exchanger is isolated and the electric auxiliary heating device is put into operation, so that the air conditioner can continue to provide heating, thereby effectively improving the performance of the air conditioner.

[0017] To achieve the above objectives, a 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, the control method of the air conditioner of any of the above embodiments is implemented.

[0018] According to the air conditioner of the embodiment of the present invention, by executing the control method of the air conditioner, when refrigerant leakage occurs in the indoor heat exchanger, the indoor heat exchanger is isolated and the electric auxiliary heating device is put into operation, so that the air conditioner can continue to provide heating, thereby effectively improving the performance of the air conditioner.

[0019] To achieve the above-mentioned purpose, the fourth aspect of the present invention proposes another air conditioner, including an indoor unit, an outdoor unit and a control module, the indoor unit includes a heat exchange chamber, a fan chamber and an air outlet chamber connected in sequence, the heat exchange chamber is provided with an indoor heat exchanger, the fan chamber is provided with an indoor fan and an air inlet, the air outlet chamber is provided with an electric auxiliary heating device and an air outlet, the outdoor unit includes a compressor, and the control module is arranged in the indoor unit; the control module is configured to control the compressor to stop, isolate the heat exchange chamber and the fan chamber, open the air inlet, and control the indoor fan and the electric auxiliary heating device to work when the air conditioner is running in heating mode and a refrigerant leak occurs in the indoor heat exchanger; wherein, under the action of the indoor fan, the indoor air enters the fan chamber and the air outlet chamber in sequence through the air inlet, and returns to the room through the air outlet after being heated by the electric auxiliary heating device.

[0020] According to the air conditioner of the embodiment of the present invention, when the air conditioner is operated in the heating mode and the indoor heat exchanger has a refrigerant leak, the heat exchange compartment and the fan compartment, that is, the indoor heat exchanger is isolated, and the air inlet is opened, and the indoor fan and the electric auxiliary heating device are controlled to work, so that the indoor air enters the indoor unit through the air inlet, is heated by the electric auxiliary heating device, and then returns to the room through the air outlet. In this way, when the indoor heat exchanger of the air conditioner has a refrigerant leak, by isolating the indoor heat exchanger and keeping the electric auxiliary heating device in a working state, the air conditioner can continue to provide heating, effectively improving the performance of the air conditioner.

[0021] 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

[0022] Figure 1a is a schematic diagram of the internal structure of an indoor unit of an air conditioner according to some embodiments of the present invention;

[0023] Figure 1b Schematic diagram of the internal structure of an indoor unit of an air conditioner according to some other embodiments of the present invention;

[0024] Figure 1c Schematic diagram of the internal structure of an indoor unit of an air conditioner according to some embodiments of the present invention;

[0025] Figure 2 is a flow chart of a method for controlling an air conditioner according to some embodiments of the present invention;

[0026] Figure 3 is a flow chart of a method for controlling an air conditioner according to some other embodiments of the present invention;

[0027] Figure 4 is a block diagram of an air conditioner according to some embodiments of the present invention. DETAILED DESCRIPTION

[0028] 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.

[0029] The structure of the air conditioner according to the embodiment of the present invention will be described below.

[0030] In an embodiment of the present invention, the air conditioner includes an indoor unit and an outdoor unit. Figure 1a-Figure 1c The indoor unit may include a heat exchange compartment, a fan compartment and an air outlet compartment which are connected in sequence. The heat exchange compartment is provided with an indoor heat exchanger 1, a return air port 5 and an exhaust port 8. The fan compartment is provided with an indoor fan 2, an air inlet 4 and an isolation component 7. The air outlet compartment is provided with an electric auxiliary heating device 3, an air outlet 6 and a controller 9.

[0031] The indoor heat exchanger 1 can be a plate heat exchanger, etc. In heating mode, the indoor heat exchanger 1 acts as a condenser to release heat to the indoor air to increase the indoor temperature; in cooling mode, the indoor heat exchanger 1 acts as an evaporator to absorb heat from the indoor air to reduce the indoor temperature.

[0032] The indoor fan 2 is used to deliver indoor air, and the speed is adjustable. The electric auxiliary heating device 3 is used to provide an auxiliary heating function, and can be a PTC (semiconductor heating ceramic) electric heating device or the like.

[0033] The air inlet 4 is used as the air inlet of the indoor unit when the indoor heat exchanger 1 leaks refrigerant. It can be one or more, for example, Figure 1a-Figure 1c In the embodiment, there are two air inlets 4. When refrigerant leakage occurs in the indoor heat exchanger 1, indoor air can enter the indoor unit through the air inlets 4.

[0034] The return air inlet 5 is used as the air inlet of the indoor unit when the indoor heat exchanger 1 does not leak refrigerant. It can be one or more, for example, Figure 1a-Figure 1c In the embodiment, there is one return air port 5. When there is no refrigerant leakage in the indoor heat exchanger 1, indoor air can enter the indoor unit through the return air port 5.

[0035] The air outlet 6 is arranged corresponding to the electric auxiliary heating device 3. The indoor air enters the indoor unit through the air inlet 4 or the return air outlet 5, and after heat exchange by the indoor heat exchanger 1 and / or the electric auxiliary heating device 3, it returns to the room again through the air outlet 6 to increase or decrease the indoor temperature.

[0036] The isolation component 7 is used to isolate the heat exchange chamber and the fan chamber when the indoor heat exchanger 1 leaks refrigerant, that is, to isolate the indoor heat exchanger 1. The specific structure and installation position of the isolation component 7 are not limited here. For example, Figure 1a In the example, the isolation assembly 7 may include two dampers 71 and a stepper motor 72 corresponding to the two dampers 71. The dampers 71 are driven by the stepper motor 72 to rotate to achieve isolation of the heat exchange chamber and the fan chamber. When the stepper motor 72 drives the damper 71 to rotate to the first position A, the heat exchange chamber and the fan chamber are connected, that is, the indoor heat exchanger 1 is not isolated. When the stepper motor 72 drives the damper 71 to rotate to the second position B, the heat exchange chamber and the fan chamber are isolated, that is, the indoor heat exchanger 1 is isolated. In addition, in this example, when the damper 71 is located at the first position A, the air inlet 4 is in a closed state, and when the damper 71 is located at the second position B, the air inlet 4 is in an open state. In this way, the isolation of the heat exchange chamber and the fan chamber and the opening of the air inlet 4, or the connection of the heat exchange chamber and the fan chamber and the closing of the air inlet 4 can be achieved through one damper 71, thereby effectively saving the indoor unit space and reducing the hardware cost.

[0037] For example, in Figure 1bIn the embodiment, the isolation assembly 7 may include three dampers 73, 74 and 75, which are compressible, rotatable and other structures. For example, when the compressible structure is used, when the heat exchange cabin and the fan cabin need to be isolated, that is, when the indoor heat exchanger 1 needs to be isolated, the damper 75 is in the expanded state to isolate the heat exchange cabin and the fan cabin, that is, to isolate the indoor heat exchanger 1. When the damper 75 is in the compressed state, the heat exchange cabin and the fan cabin are connected, that is, the isolation of the indoor heat exchanger 1 is released. Similarly, the air inlet 4 can be opened and closed by the dampers 73 and 74, so that the air inlet 4 and the indoor heat exchanger 1 can be independently controlled to be isolated.

[0038] The exhaust port 8 is used to discharge the leaked refrigerant when the indoor heat exchanger 1 leaks refrigerant. The leaked refrigerant can be discharged indoors or outdoors, and the discharge to the outdoors is safer. Figure 1a-Figure 1c As shown, the exhaust port 8 is arranged close to one side of the indoor heat exchanger 1, so that when the heat exchange compartment and the fan compartment are isolated by the isolation component 7, the leaked refrigerant can be discharged.

[0039] The controller 9 is the control core of the indoor unit, and a control program is set inside to control the indoor fan 2, the electric auxiliary heating device 3 and the isolation component 7, etc., so as to realize the cooling and heating of the air conditioner. Figure 1a When the air conditioner is running in the heating mode, when there is no refrigerant leakage in the indoor heat exchanger 1, the controller 9 controls the damper 71 of the isolation component 7 to be in the first position A. At this time, the heat exchange chamber and the fan chamber are in a connected state, that is, the indoor heat exchanger 1 is not in an isolated state, and the air inlet 4 is in a closed state. The indoor air enters the indoor unit through the return air port 5, and after heat exchange through the indoor heat exchanger 1 and the electric auxiliary heating device 3, it returns to the room again through the air outlet 6, thus achieving heating under normal conditions; when there is a refrigerant leakage in the indoor heat exchanger 1, the controller 9 controls the damper 71 of the isolation component 7 to be in the second position B. At this time, the heat exchange chamber and the fan chamber are in an isolated state, that is, the indoor heat exchanger 1 is in an isolated state, and the air inlet 4 is in an open state. The indoor air enters the indoor unit through the air inlet 4, and after heat exchange through the electric auxiliary heating device 3, it returns to the room again through the air outlet 6, thus achieving heating under refrigerant leakage.

[0040] It should be noted that the specific structure of the indoor unit of the above-mentioned air conditioner is only an exemplary description and cannot be used as a specific limitation to the present application.

[0041] The following is a description of a control method for an air conditioner according to an embodiment of the present invention.

[0042] Figure 2 is a flow chart of a method for controlling an air conditioner according to some embodiments of the present invention.

[0043] like Figure 2 As shown, the control method of the air conditioner may include:

[0044] S1, when the air conditioner is running in heating mode and refrigerant leakage occurs in the indoor heat exchanger, the compressor is controlled to stop, the heat exchange compartment and the fan compartment are isolated, the air inlet is opened, and the indoor fan and the electric auxiliary heating device are controlled to work; wherein, under the action of the indoor fan, the indoor air enters the heat exchange compartment and the fan compartment through the air inlet, is heated by the electric auxiliary heating device, and then returns to the room through the air outlet.

[0045] Specifically, when the air conditioner is running in heating mode, when there is no refrigerant leakage in the indoor heat exchanger, the indoor fan drives the indoor air through the indoor heat exchanger to exchange heat with the refrigerant in the indoor heat exchanger, so as to increase the indoor temperature and achieve the heating effect. When the indoor heat exchanger leaks refrigerant, the compressor in the outdoor unit is controlled to be in a shutdown state to stop heating through the indoor heat exchanger and reduce further leakage of refrigerant. At the same time, the heat exchange chamber and the fan chamber are isolated, the air inlet is opened, and the indoor fan and the electric auxiliary heating device are controlled to work. Under the action of the indoor fan, the indoor air enters the indoor unit through the air inlet, and returns to the room through the air outlet after being heated by the electric auxiliary heating device, thereby achieving the heating effect and allowing the air conditioner to provide continuous heating.

[0046] For example, refer to Figure 1a When the air conditioner is running in heating mode, if the indoor heat exchanger 1 leaks refrigerant, the controller 9 controls the stepper motor 72 to drive the damper 71 to rotate to the second position B, so as to cut off the passage between the indoor fan 2 and the indoor heat exchanger 1, and at the same time, the air inlet 4 is in an open state. At this time, the indoor air enters the indoor unit from the air inlet 4, and under the blowing and rotating action of the indoor fan 2, the indoor air is transmitted to the electric auxiliary heating device 3 for heating. The heated indoor air returns to the room through the air outlet 6, thereby achieving the auxiliary heating effect, so that the air conditioner can continue to provide heating even when the refrigerant leaks, thereby improving the performance of the air conditioner.

[0047] In the above embodiment, when the air conditioner is operated in heating mode and refrigerant leakage occurs in the indoor heat exchanger, the air conditioner can continue to provide heating by isolating the indoor heat exchanger and keeping the indoor fan and the electric auxiliary heating device in working state, thereby effectively improving the performance of the air conditioner.

[0048] In some embodiments of the present invention, when controlling the indoor fan and the electric auxiliary heating device to be in working state, the control method of the air conditioner may further include: obtaining the indoor ambient temperature and the indoor target temperature; determining the wind speed of the indoor fan and the heating level of the electric auxiliary heating device according to the temperature difference between the indoor target temperature and the indoor ambient temperature.

[0049] It should be noted that the indoor target temperature refers to the temperature that needs to be reached indoors, which can be set manually by the user or automatically by the smart terminal, etc., and there is no specific restriction here. The indoor ambient temperature can be detected by a temperature sensor, and there is no restriction on the specific setting location. For example, it can be set near the air outlet of the indoor unit or other locations where the indoor temperature can be determined more accurately.

[0050] When the air conditioner is running in heating mode and the indoor heat exchanger leaks refrigerant, the indoor fan and the electric auxiliary heating device are controlled to be in working state so that the air conditioner can continue to provide heating. When the indoor fan and the electric auxiliary heating device are controlled to work, in order to achieve a better heating effect, the indoor ambient temperature can be obtained in real time, and the temperature difference between the indoor target temperature and the indoor ambient temperature can be obtained, and the wind speed that the indoor fan currently needs to run and the heating level that the electric auxiliary heating device currently needs can be determined based on the temperature difference.

[0051] For example, a temperature threshold may be set. When the temperature difference is higher than the temperature threshold, the corresponding wind speed of the indoor fan is high and the heating level of the electric auxiliary heating device is high. When the temperature difference is lower than the temperature threshold, the corresponding wind speed of the indoor fan is low and the heating level of the electric auxiliary heating device is low. For another example, when the speed of the indoor fan and the heating power of the electric auxiliary heating device can be adjusted steplessly, the speed of the indoor fan and the heating power of the electric auxiliary heating device can be adjusted steplessly according to the temperature difference, wherein the temperature difference is positively correlated with the speed and the heating power.

[0052] In the above embodiment, by controlling the operation of the indoor fan and the electric auxiliary heating device according to the temperature difference between the indoor target temperature and the indoor ambient temperature, the heating effect when the refrigerant leaks can be effectively improved.

[0053] In some embodiments of the present invention, the indoor unit also includes an exhaust port arranged in the heat exchange chamber and an exhaust fan arranged corresponding to the exhaust port. When the heat exchange chamber and the fan chamber are isolated, the control method of the air conditioner may also include: controlling the exhaust port to open, and controlling the exhaust fan to work; wherein, under the action of the exhaust fan, the leaked refrigerant is discharged from the heat exchange chamber through the exhaust port.

[0054] Specifically, when a refrigerant leaks in the indoor heat exchanger, the heat exchange chamber and the fan chamber will be isolated. Since the exhaust port is arranged in the heat exchange chamber, the leaked refrigerant can be discharged from the heat exchange chamber through the exhaust port, for example, to the indoor or outdoor space. Furthermore, an exhaust fan can be arranged corresponding to the exhaust port. By controlling the operation of the exhaust fan, the leaked refrigerant can be discharged from the heat exchange chamber in a relatively short time, effectively reducing the possibility of a large amount of refrigerant accumulating in the heat exchange chamber in a short time, thereby effectively improving the safety of the air conditioner.

[0055] For example, refer to Figure 1aWhen the air conditioner is running in the heating mode, if the indoor heat exchanger 1 leaks refrigerant, the controller 9 controls the stepper motor 72 to drive the damper 71 to rotate to the second position B, so as to isolate the indoor heat exchanger 1 from the exhaust port 8, and keep the air inlet 4 in the open state. Then, the indoor fan 2 and the electric auxiliary heating device 3 are controlled to work for continuous heating, and the exhaust fan (not shown) is controlled to work to discharge the refrigerant leaked in the heat exchange chamber through the exhaust port 8. For example, the exhaust port 8 is connected to the fresh air duct and discharged to the outside through the fresh air duct to improve the safety of refrigerant discharge.

[0056] In the above embodiment, when refrigerant leakage occurs in the indoor heat exchanger, the leaked refrigerant can be quickly discharged by isolating the indoor heat exchanger from the exhaust port and controlling the operation of the exhaust fan, thereby effectively improving the safety of the air conditioner.

[0057] Furthermore, in some embodiments of the present invention, after the leaked refrigerant is discharged from the heat exchange chamber through the exhaust port, the control method of the air conditioner may also include: obtaining the refrigerant content of the heat exchange chamber; when the refrigerant content is less than or equal to a preset content, connecting the heat exchange chamber and the fan chamber, closing the air inlet and the exhaust port, and controlling the exhaust fan to stop.

[0058] It should be noted that the refrigerant content in the heat exchange chamber can be detected by a refrigerant concentration sensor. Considering that the refrigerant is heavier than air, the refrigerant concentration sensor can be placed below the indoor heat exchanger, thereby effectively improving the accuracy of refrigerant content detection.

[0059] In the process of controlling the exhaust fan to discharge the refrigerant in the heat exchange chamber to indoor or outdoor, the refrigerant concentration sensor can also detect the refrigerant content in the heat exchange chamber in real time and compare it with the preset content. When the refrigerant content is less than or equal to the preset content, it means that the refrigerant has been basically exhausted. At this time, the exhaust fan can be controlled to stop working, and the exhaust port can be controlled to be closed, and the heat exchange chamber and the fan compartment can be connected, that is, the isolation of the indoor heat exchanger and the exhaust port is released, and the air inlet can be closed.

[0060] For example, refer to Figure 1a In the process that the controller 9 controls the exhaust fan to discharge the refrigerant in the heat exchange chamber to indoor or outdoor, the refrigerant content in the heat exchange chamber is detected in real time by the refrigerant concentration sensor. When the refrigerant content is less than or equal to the preset content, the exhaust fan is controlled to stop working, and the exhaust port 8 is controlled to be in a closed state, and the stepper motor 72 is controlled to drive the damper 71 to rotate from the second position B to the first position A. At this time, the heat exchange chamber is no longer isolated, and the air inlet 4 is in a closed state, that is, it is restored to the state when no refrigerant leakage occurs.

[0061] It should be noted that when the air conditioner is running in heating mode, the refrigerant concentration sensor can be used to detect in real time whether there is refrigerant leakage in the indoor heat exchanger to determine whether the indoor heat exchanger should be isolated in the aforementioned manner and whether continuous heating should be provided through the indoor fan and electric auxiliary heating device.

[0062] In the above embodiment, whether it is necessary to stop the refrigerant discharge is determined by obtaining the refrigerant content in the heat exchange chamber. Compared with the method of using time, the accuracy of the timing of stopping the refrigerant discharge can be improved. On the one hand, the refrigerant can be discharged as completely as possible, and on the other hand, energy consumption can be reduced.

[0063] In some embodiments of the present invention, the fan cabin is provided with an isolation component, and the control method of the air conditioner may further include: controlling the isolation component to be in an isolation state to isolate the fan cabin and the heat exchange cabin, while opening the air inlet; controlling the isolation component to be in a non-isolation state to connect the fan cabin and the heat exchange cabin, while closing the air inlet. In other words, the isolation of the heat exchange cabin and the opening of the air inlet, or the non-isolation of the heat exchange cabin and the closing of the air inlet, can be achieved through the same isolation component.

[0064] For example, refer to Figure 1a The isolation assembly 7 may include a damper 71 and a stepper motor 72, which are arranged on the passage between the indoor fan 2 and the indoor heat exchanger 1, and the air inlet 4 is located on one side of the indoor fan 2. By rationally setting the structure and position of the damper 71, whether the heat exchange chamber is isolated and the synchronous control of the air inlet 4 can be realized. For example, the controller 9 may control the stepper motor 72 to drive the damper 71 to rotate to the first position A, at which time the two air inlets 4 are just closed, and the heat exchange chamber is in a non-isolated state, that is, the passage between the indoor heat exchanger 1 and the indoor fan 2 is not cut off; the controller 9 may also control the stepper motor 72 to drive the damper 71 to rotate to the second position B, at which time the two dampers 71 are just docked to isolate the heat exchange chamber, and at the same time the two air inlets 4 are in an open state.

[0065] For example, refer to Figure 1c, the isolation assembly 7 may include two dampers 76 and a rotating motor 77 corresponding to each damper 76, the rotating motor 77 is arranged on the passage between the indoor fan 2 and the indoor heat exchanger 1, the damper 76 moves between the first position A and the second position B around the rotating motor 77, and the air inlet 4 is located on one side of the indoor fan 2, and the synchronous control of the heat exchange chamber and the air inlet 4 can be achieved by reasonably arranging the structure of the damper 76. For example, the controller 9 may control the rotating motor 77 to drive the damper 76 to move to the first position A, at which time the two air inlets 4 are just closed, and the heat exchange chamber is in a non-isolated state, that is, the passage between the indoor heat exchanger 1 and the indoor fan 2 is not isolated; the controller 9 may also control the rotating motor 77 to drive the damper 76 to rotate to the second position B, at which time the two dampers 76 are just docked to isolate the heat exchange chamber, and the two air inlets 4 are in an open state.

[0066] It should be noted that the above structure is only an exemplary description and is not intended to limit the present application.

[0067] In the above embodiments, the isolation of the heat exchange chamber and the opening of the air inlet, or the non-isolation of the heat exchange chamber and the closing of the air inlet are achieved through the same isolation component, which can effectively save the indoor unit space and reduce the hardware cost.

[0068] In some embodiments of the present invention, the heat exchange cabin also includes a return air outlet, and the control method of the air conditioner may also include: when the air conditioner is operating in a heating mode and there is no refrigerant leakage in the indoor heat exchanger, controlling the compressor, the indoor fan and the electric auxiliary heating device to operate; wherein, under the action of the indoor fan, the indoor air enters the indoor unit through the return air outlet, is heated by the indoor heat exchanger and the electric auxiliary heating device, and then returns to the room through the air outlet.

[0069] Specifically, when the air conditioner is operating in heating mode, when there is no refrigerant leakage in the indoor heat exchanger, the compressor in the outdoor unit can be controlled to be in working state, and the heat exchange cabin can be in a non-isolated state, so as to heat the indoor heat exchanger in the heat exchange cabin. At the same time, the electric auxiliary heating device can be controlled according to control requirements to achieve the auxiliary heating effect.

[0070] For example, refer to Figure 1aWhen the air conditioner is running in heating mode, when there is no refrigerant leakage in the indoor heat exchanger 1, the controller 9 controls the stepper motor 72 to drive the damper 71 to rotate to the first position A, so that the indoor fan 2 is connected to the channel of the indoor heat exchanger 1, and the air inlet 4 is closed, and the exhaust port 8 is closed, and the compressor of the outdoor unit and the indoor fan 2 are controlled to be in working state. At this time, the indoor air enters the indoor unit from the return air port 5, and after heat exchange in the indoor heat exchanger 1, it returns to the room through the electric auxiliary heating device 3 and the air outlet 5, so as to realize the heating of the air conditioner through the indoor heat exchanger 1. Among them, whether the electric auxiliary heating device 3 is turned on can be determined based on actual control requirements.

[0071] In the above embodiments, when there is no refrigerant leakage in the indoor heat exchanger, heating can be performed by the indoor heat exchanger or the indoor heat exchanger and the electric auxiliary heating device to achieve the heating function under normal conditions.

[0072] In some embodiments of the present invention, when controlling the compressor and the electric auxiliary heating device to be in working state, the control method of the air conditioner may further include: obtaining the heating amount of the air conditioner; and controlling the compressor and the electric auxiliary heating device according to the heating amount.

[0073] That is to say, when there is no refrigerant leakage in the indoor heat exchanger, the compressor and the electric auxiliary heating device can be controlled according to the actual heating capacity of the air conditioner, such as controlling the opening, closing, and operating frequency of the compressor, as well as the opening, closing, and heating power of the electric auxiliary heating device, to meet actual needs.

[0074] In some embodiments of the present invention, obtaining the heating capacity of the air conditioner may include: obtaining a first enthalpy value of the return air outlet, a second enthalpy value of the air outlet, and the air volume of the indoor fan; and determining the heating capacity of the air conditioner based on the first enthalpy value, the second enthalpy value and the air volume.

[0075] Furthermore, the first enthalpy value of the return air outlet can be determined according to the temperature and humidity of the return air outlet; the second enthalpy value of the outlet can be determined according to the temperature and humidity of the outlet; and the air volume of the indoor fan can be determined according to the operating power of the indoor fan.

[0076] Exemplarily, the temperature Th and humidity Dh of the return air outlet can be obtained by a temperature sensor and a humidity sensor, or a temperature and humidity sensor, set at the return air outlet. Then, based on the temperature Th and humidity Dh of the return air outlet, the enthalpy value of the return air outlet can be determined by table lookup or calculation, and recorded as the first enthalpy value Hin. For example, the first enthalpy value Hin can be obtained by querying a pre-stored enthalpy-humidity table.

[0077] The temperature Tc and humidity Dc of the air outlet can be obtained by a temperature sensor and a humidity sensor, or a temperature and humidity sensor, provided at the air outlet. Then, based on the temperature Tc and humidity Dc of the air outlet, the enthalpy value of the air outlet can be determined by table lookup or calculation, and recorded as the second enthalpy value Hout. For example, the second enthalpy value Hout can be obtained by querying a pre-stored enthalpy-humidity table.

[0078] The air volume M of the indoor fan may be determined by acquiring the current operating power of the indoor fan. For example, the air volume M of the indoor fan may be obtained by querying a pre-stored power-air volume table.

[0079] After obtaining the first enthalpy value Hin, the second enthalpy value Hout and the air volume M, the heating capacity Q of the air conditioner can be calculated according to the first enthalpy value Hin, the second enthalpy value Hout and the air volume M. For example, the heating capacity Q of the air conditioner = M*(Hout-Hin). Then, based on the heating capacity Q of the air conditioner, the compressor and the electric auxiliary heating device in the outdoor unit are controlled to meet actual needs.

[0080] In some embodiments of the present invention, the compressor and the electric auxiliary heating device are controlled according to the heating amount, including: when the heating amount is less than or equal to the first preset heating amount and the operating frequency of the compressor is less than or equal to the maximum allowable frequency of the compressor, increasing the operating frequency of the compressor; when the heating amount is less than or equal to the first preset heating amount and the operating frequency of the compressor is greater than the maximum allowable frequency, controlling the electric auxiliary heating device to operate at the first heating level; when the heating amount is greater than the first preset heating amount and less than or equal to the second preset heating amount, controlling the electric auxiliary heating device to operate at the second heating level; when the heating amount is greater than the second preset heating amount and less than or equal to the third preset heating amount, controlling the electric auxiliary heating device to operate at the third heating level.

[0081] It should be noted that the first preset heating value, the second preset heating value and the third preset heating value can be set according to actual conditions, and the maximum allowable frequency of the compressor is related to the current outdoor ambient temperature, that is, the maximum operating frequency allowed by the current outdoor ambient temperature, so that the compressor can operate safely and reliably.

[0082] When there is no refrigerant leakage in the indoor heat exchanger, the operating frequency of the compressor and the heating level of the electric auxiliary heating device can be controlled according to the heating amount Q of the air conditioner.

[0083] Exemplarily, when the heating capacity of the air conditioner is less than or equal to the first preset heating capacity, it is determined whether the operating frequency of the compressor is less than or equal to the maximum operating frequency allowed by the current ambient temperature. If so, the operating frequency of the compressor is increased according to the preset rules to give priority to heating through the compressor, wherein the preset rules for increasing the operating frequency of the compressor are not specifically limited, such as the operating frequency of the compressor can be gradually increased according to a certain step length; if not, the electric auxiliary heating device is controlled to start working at the first heating level, wherein the first heating level is the minimum heating level, that is, the heating power is the minimum. When the heating capacity of the air conditioner is greater than the first preset heating capacity, it is further determined whether the heating capacity is less than or equal to the second preset heating capacity. If so, it means that the first heating level cannot meet the current temperature requirement, and the electric auxiliary heating device is controlled to start working at the second heating level. When the heating capacity of the air conditioner is greater than the second preset heating capacity, it is further determined whether the heating capacity is less than or equal to the third preset heating capacity. If so, the electric auxiliary heating device is controlled to start working at the third heating level, wherein the heating power of the third heating level is the maximum.

[0084] In the above embodiment, the operating frequency of the compressor and the heating level of the electric auxiliary heating device are controlled according to the heating amount of the air conditioner, which can not only achieve a better heating effect but also reduce the power consumption of the air conditioner.

[0085] As a specific embodiment, Figure 3 is a flow chart of a method for controlling an air conditioner according to some other embodiments of the present invention. Figure 3 As shown, the control method of the air conditioner may include:

[0086] S101, the air conditioner operates in a heating mode.

[0087] S102, determining whether the refrigerant content is higher than a preset content. If yes, executing step S103; if no, executing step S108.

[0088] S103, refrigerant leakage, compressor shutdown, isolation of heat exchange compartment and fan compartment.

[0089] S104, turn on the electric auxiliary heating device, control the indoor fan to open the corresponding wind gear according to the temperature difference between the indoor target temperature and the indoor ambient temperature, and control the electric auxiliary heating device to open the corresponding heating level; and open the exhaust port, start the exhaust fan, and discharge the leaked refrigerant.

[0090] S105, after a preset time, the refrigerant content is detected again.

[0091] S106, judging whether the refrigerant content is lower than the preset content. If yes, executing step S107; otherwise, returning to step S105.

[0092] S107, connect the isolated heat exchange chamber and the fan chamber, and close the exhaust port and the exhaust fan.

[0093] S108: There is no leakage of refrigerant, and the compressor, indoor fan and electric auxiliary heating device are controlled to be in working state.

[0094] S109, obtaining the temperature Th and humidity Dh of the return air outlet.

[0095] S110, obtaining the temperature Tc and humidity Dc of the air outlet.

[0096] S111, obtaining the current operating power of the indoor fan.

[0097] S112: According to the temperature Th and the humidity Dh, obtain the first enthalpy value Hin of the return air outlet.

[0098] S113: Obtain a second enthalpy value Hout of the air outlet according to the temperature Tc and the humidity Dc.

[0099] S114, obtaining the current air volume M according to the relationship between air volume and operating power M=f(W).

[0100] S115, calculating the current heating amount Q of the air conditioner through M*|Hout-Hin|.

[0101] S116, determining whether the current heating capacity Q of the air conditioner is less than or equal to the first preset heating capacity. If yes, executing step S117; if no, returning to step S108.

[0102] S117, judging whether the operating frequency of the compressor reaches the maximum operating frequency allowed by the current ambient temperature. If yes, executing step S119; if no, executing step S118.

[0103] S118, increasing the compressor operating frequency according to a preset rule.

[0104] S119, controlling the electric auxiliary heating device to start the first heating level.

[0105] S120, determining whether the current heating capacity Q of the air conditioner is greater than the first preset heating capacity and less than or equal to the second preset heating capacity. If yes, execute step S121; if not, return to step S108.

[0106] S121, controlling the electric auxiliary heating device to start the second heating level.

[0107] S122, determine whether the current heating capacity Q of the air conditioner is greater than the second preset heating capacity and less than or equal to the third preset heating capacity. If yes, execute step S123; if not, return to step S108.

[0108] S123, controlling the electric auxiliary heating device to start the third heating level.

[0109] S124, end.

[0110] 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.

[0111] In summary, according to the control method of the air conditioner in an embodiment of the present invention, when refrigerant leakage occurs in the indoor heat exchanger, the indoor heat exchanger is isolated and the electric auxiliary heating device is kept in working state, so that the air conditioner can continue to provide heating and effectively improve the performance of the air conditioner.

[0112] Corresponding to the above embodiments, an embodiment of the present invention further proposes a computer-readable storage medium on which a program is stored. When the program is executed by a processor, the control method of the air conditioner of any of the above embodiments is implemented.

[0113] According to the computer-readable storage medium of an embodiment of the present invention, by executing the above-mentioned air conditioner control method, when refrigerant leakage occurs in the indoor heat exchanger, the indoor heat exchanger is isolated and the electric auxiliary heating device is in a working state, so that the air conditioner can continue to provide heating, thereby effectively improving the performance of the air conditioner.

[0114] Corresponding to the above embodiment, an embodiment of the present invention further provides an air conditioner.

[0115] like Figure 4 As shown, the air conditioner 100 includes a processor 110, a memory 120, and an air conditioner heating program 130 stored in the memory 120 and executable on the processor 110. When the processor 110 executes the heating program 130, the air conditioner control method of any of the above-mentioned embodiments can be implemented.

[0116] It should be noted that for details not disclosed in the air conditioner of the embodiment of the present invention, please refer to the details disclosed in the control method of the air conditioner of the embodiment of the present invention, and the details will not be repeated here.

[0117] According to the air conditioner of the embodiment of the present invention, by executing the control method of the air conditioner, when refrigerant leakage occurs in the indoor heat exchanger, the indoor heat exchanger is isolated and the electric auxiliary heating device is in a working state, so that the air conditioner can continue to provide heating, thereby effectively improving the performance of the air conditioner.

[0118] Corresponding to the above embodiment, an embodiment of the present invention further proposes another air conditioner, including an indoor unit, an outdoor unit and a control module, the indoor unit includes a heat exchange compartment, a fan compartment and an air outlet compartment connected in sequence, the heat exchange compartment is provided with an indoor heat exchanger, the fan compartment is provided with an indoor fan and an air inlet, the air outlet compartment is provided with an electric auxiliary heating device and an air outlet, the outdoor unit includes a compressor, and the control module is provided in the indoor unit.

[0119] Among them, the control module is configured to control the compressor to stop, isolate the heat exchange compartment and the fan compartment, open the air inlet, and control the operation of the indoor fan and the electric auxiliary heating device when the air conditioner is running in heating mode and a refrigerant leak occurs in the indoor heat exchanger; wherein, under the action of the indoor fan, the indoor air enters the fan compartment and the air outlet compartment in turn through the air inlet, and after being heated by the electric auxiliary heating device, returns to the room through the air outlet.

[0120] In some embodiments of the present invention, the control module is also used to obtain the indoor ambient temperature and the indoor target temperature, and determine the wind speed of the indoor fan and the heating level of the electric auxiliary heating device according to the temperature difference between the indoor target temperature and the indoor ambient temperature.

[0121] In some embodiments of the present invention, the indoor unit also includes an exhaust port arranged in the heat exchange chamber and an exhaust fan arranged corresponding to the exhaust port, and the control module is also used to control the opening of the exhaust port and the operation of the exhaust fan when isolating the heat exchange chamber and the fan chamber; wherein, under the action of the exhaust fan, the leaked refrigerant is discharged from the heat exchange chamber through the exhaust port.

[0122] In some embodiments of the present invention, the acquisition module is also used to: obtain the refrigerant content of the heat exchange chamber after the leaked refrigerant is discharged from the heat exchange chamber through the exhaust port; when the refrigerant content is less than or equal to the preset content, connect the heat exchange chamber and the fan chamber, close the air inlet and the exhaust port, and control the exhaust fan to stop.

[0123] In some embodiments of the present invention, the fan compartment is provided with an isolation component, and the control module is also used to: control the isolation component to be in an isolation state to isolate the fan compartment and the heat exchange compartment, while opening the air inlet; control the isolation component to be in a non-isolation state to connect the fan compartment and the heat exchange compartment, while closing the air inlet.

[0124] In some embodiments of the present invention, the heat exchange cabin also includes a return air outlet, and the control module is also used to: when the air conditioner is operating in heating mode and there is no refrigerant leakage in the indoor heat exchanger, control the operation of the compressor, the indoor fan and the electric auxiliary heating device, and release the isolation of the indoor heat exchanger, and control the closing of the air inlet and the exhaust port; wherein, under the action of the indoor fan, the indoor air enters the indoor unit through the return air outlet, is heated by the indoor heat exchanger and the electric auxiliary heating device, and then returns to the room through the air outlet.

[0125] In some embodiments of the present invention, the control module is further used to: obtain the heating amount of the air conditioner when controlling the operation of the compressor and the electric auxiliary heating device; and control the compressor and the electric auxiliary heating device according to the heating amount.

[0126] In some embodiments of the present invention, the control module is specifically used to: obtain the first enthalpy value of the return air outlet, the second enthalpy value of the outlet and the air volume of the indoor fan; determine the heating amount of the air conditioner based on the first enthalpy value, the second enthalpy value and the air volume.

[0127] In some embodiments of the present invention, the control module is also used to: determine the first enthalpy value of the return air outlet based on the temperature and humidity of the return air outlet; determine the second enthalpy value of the air outlet based on the temperature and humidity of the air outlet; and determine the air volume of the indoor fan based on the operating power of the indoor fan.

[0128] In some embodiments of the present invention, the control module is specifically used to: when the heating amount is less than or equal to the first preset heating amount and the operating frequency of the compressor is less than or equal to the maximum allowable frequency of the compressor, increase the operating frequency of the compressor; when the heating amount is less than or equal to the first preset heating amount and the operating frequency of the compressor is greater than the maximum allowable frequency, control the electric auxiliary heating device to operate at the first heating level; when the heating amount is greater than the first preset heating amount and less than or equal to the second preset heating amount, control the electric auxiliary heating device to operate at the second heating level; when the heating amount is greater than the second preset heating amount and less than or equal to the third preset heating amount, control the electric auxiliary heating device to operate at the third heating level.

[0129] It should be noted that for details not disclosed in the control device of the air conditioner in the embodiment of the present invention, please refer to the details disclosed in the control method of the air conditioner in the embodiment of the present invention, and the details will not be repeated here.

[0130] According to the control device of the air conditioner of the embodiment of the present invention, when the air conditioner is operated in the heating mode and the indoor heat exchanger has a refrigerant leak, the compressor is controlled to stop, the indoor heat exchanger is isolated and the air inlet is opened, and the indoor fan and the electric auxiliary heating device are controlled to work; wherein, under the action of the indoor fan, the indoor air enters the indoor unit through the air inlet, is heated by the electric auxiliary heating device, and then returns to the room through the air outlet. Thus, the control device can make the air conditioner continue to heat, effectively improving the performance of the air conditioner.

[0131] 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.

[0132] 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.

[0133] 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.

[0134] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0135] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0136] 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 an air conditioner, characterized in that: The air conditioner comprises an indoor unit and an outdoor unit, the indoor unit comprises a heat exchange chamber, a fan chamber and an air outlet chamber which are connected in sequence, the heat exchange chamber is provided with an indoor heat exchanger, the fan chamber is provided with an indoor fan and an air inlet, the air outlet chamber is provided with an electric auxiliary heating device and an air outlet, the outdoor unit comprises a compressor, and the method comprises: When the air conditioner is operated in heating mode and a refrigerant leak occurs in the indoor heat exchanger, the compressor is controlled to stop, the heat exchange compartment and the fan compartment are isolated, the air inlet is opened, and the indoor fan and the electric auxiliary heating device are controlled to operate; Wherein, under the action of the indoor fan, indoor air enters the fan compartment and the air outlet compartment in sequence through the air inlet, is heated by the electric auxiliary heating device, and then returns to the room through the air outlet.

2. The method according to claim 1, characterized in that When controlling the indoor fan and the electric auxiliary heating device to work, the method further includes: Get the indoor ambient temperature and indoor target temperature; The wind speed of the indoor fan and the heating level of the electric auxiliary heating device are determined according to the temperature difference between the indoor target temperature and the indoor ambient temperature.

3. The method according to claim 1, characterized in that The indoor unit further includes an exhaust port disposed in the heat exchange chamber and an exhaust fan disposed corresponding to the exhaust port. When isolating the heat exchange chamber and the fan chamber, the method further includes: The exhaust port is controlled to open, and the exhaust fan is controlled to operate; wherein, under the action of the exhaust fan, the leaked refrigerant is discharged from the heat exchange chamber through the exhaust port.

4. The method according to claim 3, characterized in that After the leaked refrigerant is discharged from the heat exchange chamber through the exhaust port, the method further includes: Obtaining the refrigerant content of the heat exchange chamber; When the refrigerant content is less than or equal to a preset content, the heat exchange chamber and the fan chamber are connected, the air inlet and the exhaust port are closed, and the exhaust fan is controlled to stop.

5. The method according to claim 1, characterized in that The wind turbine cabin is provided with an isolation assembly, and the method further comprises: Controlling the isolation component to be in an isolation state to isolate the fan compartment and the heat exchange compartment, while opening the air inlet; The isolation assembly is controlled to be in a non-isolated state to connect the fan compartment and the heat exchange compartment, while closing the air inlet.

6. The method according to any one of claims 1 to 5, characterized in that: The heat exchange chamber further includes a return air port, and the method further includes: When the air conditioner is operated in a heating mode and there is no refrigerant leakage in the indoor heat exchanger, controlling the compressor, the indoor fan and the electric auxiliary heating device to operate; Wherein, under the action of the indoor fan, indoor air enters the indoor unit through the return air port, is heated by the indoor heat exchanger and the electric auxiliary heating device, and then returns to the room through the air outlet.

7. The method according to claim 6, characterized in that When controlling the compressor and the electric auxiliary heating device to work, the method further includes: Obtaining a first enthalpy value of the return air outlet, a second enthalpy value of the air outlet, and an air volume of the indoor fan; determining a heating capacity of the air conditioner according to the first enthalpy value, the second enthalpy value and the air volume; When the heating amount is less than or equal to the first preset heating amount and the operating frequency of the compressor is less than or equal to the maximum allowable frequency of the compressor, increasing the operating frequency of the compressor; When the heating amount is less than or equal to the first preset heating amount and the operating frequency of the compressor is greater than the maximum allowable frequency, controlling the electric auxiliary heating device to operate at a first heating level; When the heating amount is greater than the first preset heating amount and less than or equal to the second preset heating amount, controlling the electric auxiliary heating device to operate at a second heating level; When the heating amount is greater than the second preset heating amount and less than or equal to the third preset heating amount, the electric auxiliary heating device is controlled to operate at the third heating level.

8. A computer-readable storage medium, characterized in that: A program is stored thereon, and when the program is executed by a processor, the control method of the air conditioner according to any one of claims 1-7 is implemented.

9. 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 control method for the air conditioner according to any one of claims 1 to 7 is implemented.

10. An air conditioner, characterized in that: It includes an indoor unit, an outdoor unit and a control module, wherein the indoor unit includes a heat exchange chamber, a fan chamber and an air outlet chamber which are connected in sequence, the heat exchange chamber is provided with an indoor heat exchanger, the fan chamber is provided with an indoor fan and an air inlet, the air outlet chamber is provided with an electric auxiliary heating device and an air outlet, the outdoor unit includes a compressor, and the control module is provided in the indoor unit; The control module is configured to control the compressor to stop, isolate the heat exchange compartment and the fan compartment, open the air inlet, and control the indoor fan and the electric auxiliary heating device to work when the air conditioner is running in a heating mode and a refrigerant leak occurs in the indoor heat exchanger; Wherein, under the action of the indoor fan, indoor air enters the fan compartment and the air outlet compartment in sequence through the air inlet, is heated by the electric auxiliary heating device, and then returns to the room through the air outlet.

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