METHOD AND DEVICE FOR CONTROLLING INTEGRATED AIR CONDITIONER, INTERGRATED AIR CONDITIONER, MEDIUM AND PRODUCT

Description

CROSS-REFERENCE

The present application is based upon and claims priority to Chinese Patent Application No. 202410437572.X, filed on Apr. 11, 2024, the entire contents of which are incorporated herein by reference.

TECHNICAL FIELD

The present disclosure relates to the field of air conditioner technologies, and in particular to a method and device for controlling an integrated air conditioner, an integrated air conditioner, a medium and a product.

BACKGROUND

Air conditioners can include split air conditioners and integrated air conditioners. In the split air conditioner, indoor and outdoor units are separated, and inner and outer fan blades are driven by separate motors, respectively. In a case of defrosting, inner and outer motors can be driven and controlled separately, and an evaporator and a condenser of the split air conditioner are installed indoors and outdoors, respectively. The integrated air conditioner controls inner and outer fan blades by a single motor, and an evaporator and a condenser are both installed on a main body of the air conditioner. Whether it is the split air conditioner or the integrated air conditioner, in a heating mode, the condenser will frost after a period of use.

SUMMARY

The present disclosure provides a method and device for controlling an integrated air conditioner, an integrated air conditioner, a medium and a product.

According to a first aspect of embodiments of the present disclosure, there is provided a method for controlling an integrated air conditioner, the integrated air conditioner including a compressor, an evaporator, and a first damper corresponding to the evaporator, wherein the method includes:

• • in a case where the integrated air conditioner is in operation in a heating mode, obtaining a piping temperature of the evaporator and/or a duration for which the compressor is in operation in the heating mode; and
  • in a case where the duration for which the compressor is in operation in the heating mode reaches a first preset duration, and/or the piping temperature of the evaporator is greater than a first preset temperature, increasing an opening of the first damper from a third target opening to a first target opening.

According to a second aspect of embodiments of the present disclosure, there is provided an integrated air conditioner, including:

• • a compressor, an evaporator and a first damper corresponding to the evaporator;
  • a processor; and
  • a memory configured to store executable instructions of the processor;
  • wherein the processor is configured to execute a computer program in the memory to implement steps of the method for controlling the integrated air conditioner provided in the first aspect of embodiments of the present disclosure.

According to a third aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium having computer program instructions stored thereon, which, when executed by a processor, implement steps of the method for controlling the integrated air conditioner provided in the first aspect of embodiments of the present disclosure.

According to a fourth aspect of embodiments of the present disclosure, there is provided a computer program product including a computer program which, when executed by a processor, implements steps of the method for controlling the integrated air conditioner provided in the first aspect of embodiments of the present disclosure.

It should be noted that the above general description and the following detailed description are merely exemplary and explanatory and should not be construed as limiting of the disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings here, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain principles of the present disclosure.

FIG. 1 shows a left side view of an integrated air conditioner according to an embodiment of the present disclosure.

FIG. 2 shows a right side view of an integrated air conditioner according to an embodiment of the present disclosure.

FIG. 3 shows a flowchart of a method for controlling an integrated air conditioner according to an embodiment of the present disclosure.

FIG. 4 shows a schematic diagram of a damper opening position according to an embodiment of the present disclosure.

FIG. 5 shows a block diagram of a device for controlling an integrated air conditioner according to an embodiment of the present disclosure.

FIG. 6 shows a block diagram of an integrated air conditioner according to an embodiment of the present disclosure.

DETAILED DESCRIPTION

Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise represented. Implementations set forth in the following description of the embodiments do not represent all implementations consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects related to the present disclosure as recited in the appended claims.

It should be noted that all actions of obtaining signals, information or data in the present disclosure are carried out in compliance with relevant data protection laws and policies of the country where the corresponding device is located and with the authorization given by an owner of the device.

In order to prevent an integrated air conditioner from blowing cold air in a heating mode to affect the user experience, the present disclosure provides a method and device for controlling an integrated air conditioner, an integrated air conditioner, a medium and a product. When a duration of a compressor being in operation in a heating mode reaches a first preset duration, and/or a piping temperature of an evaporator is greater than a first preset temperature, an opening of a first damper is increased from a third target opening to a first target opening to prevent the opening of the first damper from being too large when the piping temperature of the evaporator is low or the duration of the compressor being in operation in the heating mode is short to cause the integrated air conditioner to blow the cold air and affect the user experience.

In the present disclosure, a method for controlling an air conditioner can be applied to an integrated air conditioner, for example, applied to a processor or a controller in the integrated air conditioner, etc. The integrated air conditioner may be a cabinet air conditioner or a mobile air conditioner.

First, a structure of the integrated air conditioner will be described.

The integrated air conditioner includes a fan blade motor, a first fan blade, a second fan blade, a first damper, a second damper, an evaporator and a condenser. The condenser and the second damper corresponding to the condenser are located on the lower side of an air conditioner housing, and the evaporator and the first damper corresponding to the evaporator are located on the upper side of the air conditioner housing. The second damper corresponding to the condenser refers to the damper on the condenser side, and the first damper corresponding to the evaporator refers to the damper on the evaporator side. The fan blade motor controls the first fan blade and the second fan blade, respectively. For example, the fan blade motor includes two shafts, which are respectively connected to the first fan blade and the second fan blade. The first fan blade is the fan blade on the evaporator side, the second fan blade is the fan blade on the condenser side, and the first fan blade and the second fan blade include but are not limited to centrifugal fan blades.

For example, FIG. 1 shows a left side view of an integrated air conditioner according to an embodiment of the present disclosure. As shown in FIG. 1, 1 represents a housing of the integrated air conditioner, 2 represents a first damper, 3 represents a first damper motor for controlling a position of the first damper, 4 represents a connection rod for the first damper motor to drive the first damper to open and close, 5 represents an evaporator, and 11 represents a first fan blade.

FIG. 2 shows a right side view of an integrated air conditioner according to an embodiment of the present disclosure. As shown in FIG. 2, 1 represents a housing of the integrated air conditioner, 6 represents a condenser, 7 represents a second damper, 9 represents a second damper motor for controlling a position of the second damper, 8 represents a connection rod for the second damper motor to drive the second damper to open and close, and 10 represents a second fan blade.

In addition, the integrated air conditioner may further include a compressor, an expansion valve, and a four-way valve, which are not shown in FIGS. 1 and 2.

FIG. 3 shows a flowchart of a method for controlling an integrated air conditioner according to an embodiment of the present disclosure. The integrated air conditioner includes a compressor, an evaporator, and a first damper corresponding to the evaporator. As shown in FIG. 3, the method may include steps S31 and S32.

In the step S31, when the integrated air conditioner is in operation in a heating mode, a piping temperature of the evaporator and/or a duration for which the compressor is in operation in the heating mode are obtained.

In the step S32, when the duration for which the compressor is in operation in the heating mode reaches a first preset duration, and/or the piping temperature of the evaporator is greater than a first preset temperature, an opening of the first damper is increased from a third target opening to a first target opening.

In the present disclosure, the piping temperature of the evaporator and/or the duration of the compressor operating in the heating mode will affect an airflow temperature of the integrated air conditioner, and the opening of the first damper will affect an airflow volume of the integrated air conditioner. Therefore, in the present disclosure, the opening of the first damper can be adjusted according to the piping temperature of the evaporator and/or the duration of the compressor operating in the heating mode.

If the piping temperature of the evaporator is low or the duration of the compressor operating in the heating mode is short, the airflow temperature of the integrated air conditioner is low. In this case, if the opening of the first damper is large, the airflow volume is large, which will cause a large amount of cold air to enter the environment of the integrated air conditioner, seriously affecting the user experience. Therefore, in the present disclosure, when the duration of the compressor operating in the heating mode reaches the first preset duration, and/or the piping temperature of the evaporator is greater than the first preset temperature, the opening of the first damper is increased from the third target opening to the first target opening. The third target opening may be an opening of the first damper at the start of the heating mode or at the end of the defrosting.

In an embodiment, adjusting the opening of the damper refers to adjusting an opening position of the damper, and different opening positions of the damper correspond to different airflow volumes. For example, the opening position of the damper may be divided in advance. For example, as shown in FIG. 4, the opening position of the damper is divided into position 0 to position 10. When the opening position of the damper is at position 0, it represents that the damper is completely closed, and the airflow volume is the smallest and close to 0, and when the opening position of the damper is position 10, it represents that the damper is completely open, and the airflow volume is the largest. The opening position of the damper shown in FIG. 4 is position 0. In this embodiment, the opening position of the damper can be adjusted between position 0 and position 10, that is, the opening of the damper is controlled to be any opening among an opening corresponding to position 0 through an opening corresponding to position 10. The opening of the damper can be controlled by using a damper motor corresponding to the damper. For example, the third target opening can be the opening corresponding to position 0.

For example, the first preset temperature is 35° C., and the first preset duration is 120 s, that is, when the compressor runs for 120 s in the heating mode and/or the piping temperature of the evaporator when the integrated air conditioner operates in the heating mode is greater than 35° C., the opening of the first damper is increased from the third target opening to the first target opening. The first target opening can be any opening among an opening corresponding to position 1 through an opening corresponding to position 9. For example, the first target opening may be an opening corresponding to position 3.

By adopting the above technical solutions, when the piping temperature of the evaporator is low, the opening of the first damper is controlled to be small to prevent cold air from entering the environment where the integrated air conditioner is located. When the compressor operates in the heating mode for the first preset duration, and/or the piping temperature of the evaporator is greater than the first preset temperature, the opening of the first damper is increased from the third target opening to the first target opening. In this way, increasing the opening of the first damper can effectively transfer the heat in the evaporator to the environment, improve the heating efficiency, and thus achieve the purpose of heating while preventing the cold air.

In an embodiment, when the duration of the heating mode is long and/or the piping temperature of the evaporator increases, the opening of the first damper can be further increased to further improve the heating efficiency and the efficiency of heating while preventing the cold air.

In an embodiment, the method may further include:

• • after the opening of the first damper increases to the first target opening, counting a duration of the opening of the first damper at the first target opening; and
  • increasing the opening of the first damper from the first target opening to a second target opening according to at least the duration of the opening of the first damper at the first target opening and/or the piping temperature of the evaporator.

For example, it is determined whether a preset condition is met according to the duration of the opening of the first damper at the first target opening and/or the piping temperature of the evaporator. If the preset condition is met, the opening of the first damper is increased from the first target opening to the second target opening. The preset condition includes that the piping temperature of the evaporator is greater than a second preset temperature and the duration of the opening of the first damper at the first target opening reaches a second preset duration, the piping temperature of the evaporator is greater than a third preset temperature, and the duration of the opening of the first damper at the first target opening reaches a third preset duration greater than the second preset duration.

For example, the second preset temperature is 40° C., the second preset duration is 30 s, the third preset temperature is 42° C., and the third preset duration is 300 s, that is, when the piping temperature of the evaporator is greater than 40° C. and the opening of the first damper is the opening corresponding to position 3 for a duration greater than 30 s, and/or, when the piping temperature of the evaporator is greater than 42° C. when the integrated air conditioner operates in the heating mode, and/or, when the opening of the first damper is the opening corresponding to position 3 for a duration greater than 300 s, the opening of the first damper is adjusted from the opening corresponding to position 3 to the opening corresponding to position 10, that is, the first damper is controlled to be completely open.

By adopting the above technical solutions, the opening of the first damper is further increased, thereby further improving the heating efficiency and the efficiency of heating while preventing the cold air.

In addition, when the integrated air conditioner operates in the heating mode, an opening of the second damper is controlled to be maintained at the second target opening. For example, the opening of the second damper corresponding to the condenser is controlled to be maintained at the opening corresponding to position 10.

By adopting the above technical solutions, when the integrated air conditioner operates in the heating mode, the opening of the second damper is controlled to remain at the second target opening. On the one hand, the temperature of the condenser can be increased and the probability of condenser frosting can be reduced. On the other hand, a heating rate of the evaporator piping can be increased, thereby further improving the heating efficiency.

In an embodiment, the integrated air conditioner further includes a fan blade motor. When the integrated air conditioner operates in the heating mode, the fan blade motor may also be controlled to operate at a first speed, and the speed of the fan blade motor can be increased after the opening of the first damper increases to the first target opening.

In this embodiment, when the integrated air conditioner operates in the heating mode, the fan blade motor is first controlled to run at a first speed, where the first speed may be a low airflow setting speed, whose value range may be 450 RPM to 600 RPM. Afterwards, after the opening of the first damper increases to the first target opening, in order to further improve the heating efficiency, the speed of the fan blade motor may be increased.

In the present disclosure, the method further includes determining whether the integrated air conditioner meets a preset defrosting condition; and in response to determining that the integrated air conditioner meets the preset defrosting condition, switching an operation mode of the integrated air conditioner to a cooling mode, and the integrated air conditioner is capable of defrosting the condenser in a case of operating in the cooling mode.

The condenser is defrosted on the basis that dew or frost has formed on a surface of the condenser. For example, when the integrated air conditioner meets at least one of the following conditions, it is considered that the integrated air conditioner meets the preset defrosting condition: the integrated air conditioner operates in the heating mode for the preset duration, a difference between the piping temperature of the evaporator and an ambient temperature of the integrated air conditioner is within a preset range, a cumulative operation duration of the compressor of the integrated air conditioner reaches a certain duration, or the piping temperature of the evaporator reaches a temperature threshold.

When the integrated air conditioner operates in the cooling mode, it can control the refrigerant circulation through the work of the compressor and/or provide heat to the condenser through the ambient temperature of the integrated air conditioner, so that the temperature on the condenser side increases, thereby achieving defrosting of the condenser.

By adopting the above technical solutions, when the integrated air conditioner meets the preset defrosting condition, the condenser is defrosted by switching the operation mode of the integrated air conditioner to the cooling mode. In this way, the method for defrosting the condenser in the cooling mode is proposed, which is not limited to defrosting in the heating mode, thereby improving the flexibility of defrosting and thus improving the user experience.

Defrosting the condenser may include a defrosting preparation stage and a defrosting stage. The defrosting preparation stage refers to a stage in which the operation mode of the integrated air conditioner is switched to the cooling mode. In the present disclosure, an application scenario of the method for controlling the integrated air conditioner may be that the integrated air conditioner is initially in any operation mode that can cause frost on the condenser.

As described above, under normal circumstances, when the air conditioner operates in the heating mode, condenser frost may occur after a period of use. Therefore, in an embodiment, the application scenario of the method for controlling the integrated air conditioner provided by the present disclosure can be that the integrated air conditioner is initially in the heating mode. For example, in response to determining that the integrated air conditioner meets the preset defrosting condition, the operation mode of the integrated air conditioner is switched from the heating mode to the cooling mode.

In an embodiment, the integrated air conditioner may further include a four-way valve, and in response to determining that the integrated air conditioner meets the preset defrosting condition, switching the operation mode of the integrated air conditioner to the cooling mode may include: in response to determining that the integrated air conditioner meets the preset defrosting condition, controlling the compressor to stop operating and controlling the four-way valve to be powered off; and in a case where a duration for which the compressor stops operating reaches a fourth preset duration and the four-way valve is in a powered-off state, controlling the compressor to operate to switch the operation mode of the integrated air conditioner to the cooling mode.

When the integrated air conditioner is switched between cooling and heating modes, the four-way valve needs to be switched, and the four-way valve needs to be switched when a heat exchange system is under pressure balance. Therefore, in this embodiment, if it is determined that the integrated air conditioner meets the preset defrosting condition, the compressor is controlled to stop operating, so that a heat exchange system is in a pressure balance state.

The compressor stops operating for the fourth preset duration to ensure that the four-way valve can complete the power-off or switching operation within the fourth preset duration. For example, the fourth preset duration may be 50 s.

In addition, in an implementation of this embodiment, when it is determined that the integrated air conditioner meets the preset defrosting condition, the four-way valve can be directly controlled to be powered off. However, since the simultaneous controlling of the four-way valve to be powered off and the operation of the compressor to stop is performed, there may exist a situation where the four-way valve may be controlled to be powered off before the heat exchange system is in the pressure balance state, resulting in the failure of the switching of the four-way valve.

In order to ensure that the four-way valve is successfully switched when the heat exchange system is in the pressure balance state, in another implementation of this embodiment, the four-way valve is controlled to be powered off after the compressor stops operating for a period of time. For example, in response to the integrated air conditioner meeting the preset defrosting condition, controlling the four-way valve to be powered off may include: in response to the integrated air conditioner meeting the preset defrosting condition, controlling the four-way valve to be powered off after a fifth preset duration, and the fifth preset duration is less than the fourth preset duration.

For example, the fifth preset duration is 40 s and the fourth preset duration is 50 s. When it is determined that the integrated air conditioner meets the preset defrosting condition, the compressor is controlled to stop operating, and the four-way valve is controlled to be powered off after a delay of 40 s. Thereafter, when the compressor stops operating for 50 s and the four-way valve is in the powered-off state, the compressor is started, thereby switching the operation mode of the integrated air conditioner from the heating mode to the cooling mode.

In addition, the integrated air conditioner further includes an expansion valve, and in response to determining that the integrated air conditioner meets the preset defrosting condition, switching the operation mode of the integrated air conditioner to the cooling mode may further include: in response to the integrated air conditioner meeting the preset defrosting condition, controlling the expansion valve to operate with a preset maximum valve opening.

In the defrosting preparation stage, in order to ensure that the heat exchange system is in the pressure balance state, the expansion valve may also be controlled to operate at the preset maximum valve opening. For example, the maximum valve opening may be 480. In this case, the expansion valve operates at the maximum valve opening, which can further balance the pressure of the heat exchange system. In addition, during the defrosting stage, when the integrated air conditioner operates in the cooling mode, the expansion valve may also be controlled to operate at a first preset valve opening, which is less than the maximum valve opening.

In this embodiment, when the operation mode of the integrated air conditioner has been switched to the cooling mode, it is not necessary to maintain the pressure balance of the heat exchange system. In this case, the expansion valve may be controlled to operate at the first preset valve opening to achieve the purpose of throttling to establish a pressure difference to provide heat to the condenser. The first preset valve opening is less than the maximum valve opening, for example, a value range of the first preset valve opening is [100, 400].

In addition, during the defrosting preparation stage, the fan blade motor may be controlled to run at the minimum speed to store heat and provide more heat for subsequent defrosting. For example, a value range of the minimum speed is 450 RPM to 600 RPM.

At the end of the defrosting preparation stage, the operation mode of the integrated air conditioner has been switched to the cooling mode. After that, the integrated air conditioner defrosts the condenser when operating in the cooling mode.

In the present disclosure, the integrated air conditioner in the cooling mode defrosts the condenser mainly by utilizing the work of the compressor and/or the ambient temperature of the integrated air conditioner. Therefore, in an embodiment, in order to improve the defrosting efficiency, the method further includes at least one of:

• • when the integrated air conditioner operates in the cooling mode, controlling the compressor to operate at a preset defrosting frequency;
  • when the integrated air conditioner operates in the cooling mode, controlling the opening of the first damper to be maintained at the third target opening; or
  • when the integrated air conditioner operates in the cooling mode, controlling the opening of the second damper to maintain the second target opening, and the second target opening is greater than the third target opening.

For example, in the defrosting stage, the compressor is controlled to operate at a preset defrosting frequency, and the preset defrosting frequency may be a pre-calibrated frequency with a higher defrost efficiency. For example, the preset defrosting frequency may be any value between 50 Hz and 90 Hz.

When the condenser is defrosted using the ambient temperature, the larger the opening of the second damper is, the higher the heat exchange efficiency between the condenser and the environment is. Therefore, the defrosting efficiency can be improved by controlling the opening of the second damper, for example, the opening of the second damper is controlled to be the maximum opening.

In addition, when the condenser is defrosted, in order to prevent the heat of the evaporator from being lost, the first damper may be closed, that is, the third target opening may be the opening corresponding to position 0 by default.

By adopting the above technical solutions, during the defrosting stage, at least one of the following may be performed: controlling the compressor to operate at the preset defrosting frequency, maintaining the opening of the first damper at the third target opening, or maintaining the opening of the second damper at the second target opening. In this way, the heat exchange efficiency can be improved, and the defrosting efficiency can be further improved.

It should be understood that when the integrated air conditioner operates in the heating mode, in order to improve the heating efficiency, the first damper corresponding to the evaporator is usually in a completely open state, that is, in the present disclosure, in the defrosting preparation stage, the opening of the first damper is usually the opening corresponding to position 10. In order to transfer the heat from the evaporator side into the environment, in the defrosting preparation stage or within a sixth preset duration in the defrosting stage or when a temperature difference between the evaporator and the ambient temperature is large, the opening of the first damper is still controlled to be the opening corresponding to position 10 to improve the heating efficiency. When the temperature difference between the evaporator and the ambient temperature is not large or a defrosting duration reaches the sixth preset duration, the opening of the first damper is then adjusted.

By way of example, the method may further include: if a difference between the piping temperature of the evaporator and an ambient temperature of the integrated air conditioner is within a preset range, and/or a duration for which the integrated air conditioner is in operation in the cooling mode reaches a sixth preset duration, adjusting the opening of the first damper to the third target opening.

The preset range may be [−5° C., 5° C.]. If the difference between the piping temperature of the evaporator and the ambient temperature of the integrated air conditioner is within the preset range, it indicates that the difference between the piping temperature of the evaporator and the ambient temperature is not large. In this case, in order to avoid the influence on the ambient temperature during the defrosting process, the opening of the first damper may be adjusted from the opening corresponding to position 10 to the opening corresponding to position 0. In addition, the sixth preset duration may be 20 s, that is, after the integrated air conditioner operates in the cooling mode for 20 s, the opening of the first damper is adjusted from the opening corresponding to position 10 to the opening corresponding to position 0.

By adopting the above technical solutions, when the difference between the piping temperature of the evaporator and the ambient temperature is large, the opening of the first damper is not adjusted. In this way, the heat on the evaporator side can be transferred into the environment, effectively increasing the ambient temperature, and then the ambient temperature can be used to provide more heat for the condenser during the defrosting stage. In addition, when the difference between the piping temperature of the evaporator and the ambient temperature of the integrated air conditioner is within the preset range, and/or the duration of the integrated air conditioner operating in the cooling mode reaches the sixth preset duration, the opening of the first damper is then adjusted to the third target opening, which can prevent the user from having a bad experience due to the impact on the ambient temperature during the defrosting process.

The condenser is defrosted in the above manner, and when it is detected that the integrated air conditioner meets a preset defrosting termination condition, in order to meet the heating demand of the user, the operation mode of the integrated air conditioner may be switched from the cooling mode to the heating mode. Therefore, in the present disclosure, the method may further include: in response to the integrated air conditioner meeting a preset defrosting termination condition, switching the operation mode of the integrated air conditioner from the cooling mode to the heating mode.

The defrosting termination condition may include at least one of the following: the defrosting stage lasts for 9 minutes, after the defrosting lasts for 4 minutes, the piping temperature of the evaporator is greater than 0° C. and the piping temperature of the evaporator rises by more than 2° C. within 10 s, or the piping temperature of the evaporator is greater than or equal to 5° C. after the defrosting lasts for 4 minutes, etc.

By adopting the above technical solution, when it is determined that the integrated air conditioner meets the preset defrosting termination condition, the operation mode of the integrated air conditioner is automatically controlled to switch from the cooling mode to the heating mode to meet the user's heating need and further improve the user experience.

After defrosting ends, the integrated air conditioner enters a defrosting exit stage. In the defrosting exit stage, the operation mode of the integrated air conditioner is switched from the cooling mode to the heating mode. In an embodiment, the integrated air conditioner includes a four-way valve, and a specific implementation of switching the operation mode of the integrated air conditioner from the cooling mode to the heating mode in response to the integrated air conditioner meeting the preset defrosting termination condition is that: in response to the integrated air conditioner meeting the preset defrosting termination condition, controlling the compressor to stop operating and controlling the four-way valve to be powered on; and when a duration for which the compressor stops operating reaches a seventh preset duration and the four-way valve is in a powered-on state, controlling the compressor to operate to switch the operation mode of the integrated air conditioner from the cooling mode to the heating mode.

Similarly, the four-way valve needs to be switched when the heating mode is switched to from the cooling mode. Therefore, the compressor needs to be controlled to stop operating, so that the heat exchange system is in the pressure balance state, and the four-way valve needs to be controlled to be powered on when the heat exchange system is in the pressure balance state.

In this embodiment, the compressor stops operating for the seventh preset duration to ensure that the four-way valve can complete the power-on operation within the seventh preset duration. For example, the seventh preset duration may be 50 s.

In an implementation of this embodiment, when it is determined that the integrated air conditioner meets the preset defrosting termination condition, the four-way valve is directly controlled to be powered on. However, since the simultaneous controlling of the four-way valve to be powered on and the operation of the compressor to stop is performed, there may exist a situation where the four-way valve may be controlled to be powered on before the heat exchange system is in the pressure balance state, resulting in the failure of the power on of the four-way valve.

In order to ensure that the four-way valve is successfully switched when the heat exchange system is in the pressure balance state, in another implementation of this embodiment, the four-way valve can be controlled to be powered on after the compressor stops operating for a period of time. For example, in response to the integrated air conditioner meeting the preset defrosting termination condition, controlling the four-way valve to be powered on may include: in response to the integrated air conditioner meeting the preset defrosting termination condition, controlling the four-way valve to be powered on after an eighth preset duration, and the eighth preset duration is less than the seventh preset duration.

For example, the eighth preset duration is 40 s and the seventh preset duration is 50 s. When it is determined that the integrated air conditioner meets the preset defrosting termination condition, the compressor is controlled to stop operating, and the four-way valve is controlled to be powered on after a delay of 40 s. After that, when the compressor stops operating for 50 s and the four-way valve is in the powered-on state, the compressor is started, thereby switching the operation mode of the integrated air conditioner from the cooling mode to the heating mode. In the heating mode, the operating frequency of the compressor ranges from 10 Hz to 110 Hz.

In addition, the integrated air conditioner further includes an expansion valve, and in response to the integrated air conditioner meeting the preset defrosting termination condition, switching the operation mode of the integrated air conditioner to the heating mode may further include: in response to the integrated air conditioner meeting the preset defrosting termination condition, controlling the expansion valve to operate at a preset maximum valve opening.

In the defrosting exit stage, in order to ensure that the heat exchange system is in the pressure balance state, the expansion valve may also be controlled to operate at the preset maximum valve opening. For example, the maximum valve opening may be 480. In this case, the expansion valve operates at the maximum valve opening, which can further balance the pressure of the heat exchange system. When the integrated air conditioner operates in the heating mode, the expansion valve may also be controlled to operate at a second preset valve opening, which is less than or equal to the maximum valve opening. For example, a value range of the second preset valve opening is [100, 480].

In addition, during the defrosting exit stage, the fan blade motor may also be controlled to run at a target speed, and the target speed can be a speed of the fan blade motor before the defrosting preparation stage and when the integrated air conditioner is in the heating mode. For example, the target speed may range from 450 RPM to 900 RPM.

It should be understood that in the defrosting exit stage, the openings of the first damper and the second damper are not adjusted temporarily, and after the integrated air conditioner is in the heating mode, the openings of the first damper and the second damper are adjusted. The adjustment method of the first damper and the second damper in the heating mode has been described above and will not be repeated here.

The method for controlling the integrated air conditioner provided by the present disclosure is described below with a complete embodiment, and the method may be divided into four stages of a defrosting preparation stage, a defrosting stage, a defrosting exit stage, and an anti-cold air heating stage. In each stage, the fan blade motor, the first damper, the second damper, the compressor, the expansion valve, and the four-way valve in the integrated air conditioner are controlled.

Defrosting preparation stage: when the integrated air conditioner is in the heating mode, if it is determined that the integrated air conditioner meets the preset defrosting condition, it enters the defrosting preparation stage. In the defrosting preparation stage, the control of each device is as follows.

Fan blade motor: it operates at a first speed (e.g., a low airflow setting speed, which may range from 450 RPM to 600 RPM) to store the heat.

First damper: it is initially at the second target opening (e.g., the opening corresponding to position 10). When the piping temperature of the evaporator satisfies |T_{inner tube}−T_{inner environment}|≤5° C., the opening is adjusted to the third target opening (e.g., the opening corresponding to position 0). T_{inner tube} represents the piping temperature of the evaporator, and T_{inner environment} represents the ambient temperature of the integrated air conditioner.

Second damper: it maintains the second target opening (for example, the opening corresponding to position 10).

Compressor: it stops operating, and starts after a duration for which it stops operating reaches the fourth preset duration (for example, 50 s).

Expansion valve: it operates at the preset maximum valve opening (e.g. an opening of 480).

Four-way valve: it is powered off after a delay of a fifth preset duration (e.g. 40 s).

Defrosting stage: when the integrated air conditioner operates in the cooling mode, the condenser is defrosted by using the work of the compressor and the ambient temperature. During the defrosting stage, the control of each device is as follows.

Fan blade motor: it operates at a first speed (e.g., the low airflow setting speed, which may range from 450 RPM to 600 RPM).

First damper: it maintains the third target opening (for example, the opening corresponding to position 0); or, when it is not at the third target opening, if |T_{inner tube}-T_{inner environment}|≤5° C., and/or the duration of the integrated air conditioner operating in the cooling mode (i.e., entering the defrosting stage) reaches the sixth preset duration (for example, 20 s), it is adjusted to the third target opening (for example, the opening corresponding to position 10).

Second damper: it maintains the second target opening (for example, the opening corresponding to position 10).

Compressor: it runs at the preset defrosting frequency. For example, a value range of the preset defrosting frequency is [50 Hz, 90 Hz].

Expansion valve: it operates at a first preset valve opening, for example, the value range of the first preset valve opening is [100, 400].

Four-way valve: it is in the powered-off state.

Defrosting exit stage: when the integrated air conditioner is in the cooling mode, if it is determined that the integrated air conditioner meets the preset defrosting termination condition, the integrated air conditioner enters the defrosting exit stage. In the defrosting exit stage, the operation mode of the integrated air conditioner is switched from the cooling mode to the heating mode, and the control of each device is as follows.

Fan blade motor: it operates according to the target speed in the heating mode before defrosting, for example, the target speed ranges from 450 RPM to 900 RPM.

First damper: it maintains the third target opening (for example, the opening corresponding to position 0).

Second damper: it maintains the second target opening (for example, the opening corresponding to position 10).

Compressor: it stops operating, and starts after the duration for which the compressor stops operating reaches the seventh preset duration (e.g. 50 s).

Expansion valve: it operates at the preset maximum valve opening (e.g. an opening of 480).

Four-way valve: it is powered on after the defrosting exit stage lasts for the eighth preset duration (e.g. 40 s).

Anti-cold air heating stage: when the integrated air conditioner operates in the heating mode, the heating airflow temperature is ensured by controlling the first damper to achieve the purpose of heating while preventing the cold air. In the anti-cold air heating stage, the control of each device is as follows:

Fan blade motor: it operates at a first speed (e.g., a low airflow setting speed, which may range from 450 RPM to 600 RPM), and after the opening of the first damper increases to the second target opening (e.g., the opening corresponding to position 10), the speed of the fan blade motor is increased.

First damper: when the duration of the compressor operating in the heating mode reaches the first preset duration (for example, 120 s), and/or the piping temperature of the evaporator is greater than the first preset temperature (T_{inner tube}>35° C.), the opening is increased from the third target opening (for example, the opening corresponding to position 0) to the first target opening (for example, the opening corresponding to position 3); when the preset condition is met, the opening is increased from the first target opening (for example, the opening corresponding to position 3) to the second target opening (for example, the opening corresponding to position 10), and the preset condition includes at least one of: the piping temperature of the evaporator is greater than the second preset temperature (T_{inner tube}>40° C.) and the duration of the opening of the first damper at the first target opening reaches the second preset duration (for example, 30 s), the piping temperature of the evaporator is greater than the third preset temperature (T_{inner tube}>42° C.), and the duration of the opening of the first damper at the first target opening reaches the third preset duration (for example, 300 s).

Second damper: it maintains the second target opening (for example, the opening corresponding to position 10).

Compressor: it operates at a target frequency, for example, the target frequency ranges from 10 Hz to 110 Hz.

Expansion valve: it operates at a second preset valve opening, for example, the value range of the second preset valve opening is [100, 480].

Four-way valve: it is in the power-on state.

FIG. 5 shows a block diagram of a device for controlling an integrated air conditioner according to an embodiment of the present disclosure, and the integrated air conditioner includes a compressor, an evaporator, and a first damper corresponding to the evaporator. The device 500 for controlling the integrated air conditioner includes:

• • a first obtaining module 501, configured to, in a case where the integrated air conditioner is in operation in a heating mode, obtain a piping temperature of the evaporator and/or a duration for which the compressor is in operation in the heating mode; and
  • a first adjustment module 502, configured to, in a case where the duration for which the compressor is in operation in the heating mode reaches a first preset duration, and/or the piping temperature of the evaporator is greater than a first preset temperature, increase an opening of the first damper from a third target opening to a first target opening.

In some embodiments of the present disclosure, the device 500 for controlling the integrated air conditioner may further include:

• • a counting module, configured to, in a case where the opening of the first damper increases to the first target opening, count a duration of the opening of the first damper at the first target opening; and
  • a second adjustment module, configured to increase the opening of the first damper from the first target opening to a second target opening according to at least the duration of the opening of the first damper at the first target opening and/or the piping temperature of the evaporator.

In some embodiments of the present disclosure, the second adjustment module is configured to, in a case where a preset condition is met, increase the opening of the first damper from the first target opening to the second target opening; and the preset condition includes that the piping temperature of the evaporator is greater than a second preset temperature and the duration of the opening of the first damper at the first target opening reaches a second preset duration, the piping temperature of the evaporator is greater than a third preset temperature, and the duration of the opening of the first damper at the first target opening reaches a third preset duration greater than the second preset duration.

In some embodiments of the present disclosure, the integrated air conditioner further includes a condenser and a second damper corresponding to the condenser, and the device 500 for controlling the integrated air conditioner may further include:

a third adjustment module, configured to, in a case where the integrated air conditioner is in operation in the heating mode, control an opening of the second damper to maintain at a second target opening.

In some embodiments of the present disclosure, the integrated air conditioner further includes a fan blade motor, and the device 500 for controlling the integrated air conditioner may further include:

a first control module, configured to, in a case where the integrated air conditioner is in operation in the heating mode, control the fan blade motor to operate at a first speed, and in a case where the opening of the first damper increases to the second target opening, increase a speed of the fan blade motor.

In some embodiments of the present disclosure, the device 500 for controlling the integrated air conditioner may further include:

• • a first determination module, configured to determine whether the integrated air conditioner meets a preset defrosting condition; and
  • a first switching module, configured to, in response to determining that the integrated air conditioner meets the preset defrosting condition, switch an operation mode of the integrated air conditioner to a cooling mode, and the integrated air conditioner is capable of defrosting a condenser in a case of operating in the cooling mode.

In some embodiments of the present disclosure, the integrated air conditioner further includes a condenser and a second damper corresponding to the condenser, and the device 500 for controlling the integrated air conditioner may further include at least one of:

• • a second control module, configured to, in a case where the integrated air conditioner is in operation in the cooling mode, control the compressor to operate at a preset defrosting frequency;
  • a third control module, configured to, in a case where the integrated air conditioner is in operation in the cooling mode, control the opening of the first damper to maintain at the third target opening; or
  • a fourth control module, configured to, in a case where the integrated air conditioner is in operation in the cooling mode, control an opening of the second damper to maintain at a second target opening greater than the third target opening.

In some embodiments of the present disclosure, the integrated air conditioner further includes a four-way valve, and the first switching module includes:

• • a first control sub-module, configured to, in response to determining that the integrated air conditioner meets the preset defrosting condition, control the compressor to stop operating and control the four-way valve to be powered off; and
  • a second control sub-module, configured to, in a case where a duration for which the compressor stops operating reaches a fourth preset duration and the four-way valve is in a powered-off state, control the compressor to operate to switch the operation mode of the integrated air conditioner to the cooling mode.

In some embodiments of the present disclosure, the first control sub-module is configured to, in response to determining that the integrated air conditioner meets the preset defrosting condition, control the four-way valve to be powered off after a fifth preset duration, and the fifth preset duration is less than the fourth preset duration.

In some embodiments of the present disclosure, the integrated air conditioner further includes an expansion valve, and the first switching module further includes:

• • a third control sub-module, configured to, in response to determining that the integrated air conditioner meets the preset defrosting condition, control the expansion valve to operate with a preset maximum valve opening;
  • the device 500 for controlling the integrated air conditioner may further include:
  • a fifth control module, configured to, in a case where the integrated air conditioner is in operation in the cooling mode, control the expansion valve to operate with a first preset valve opening smaller than the maximum valve opening.

In some embodiments of the present disclosure, the device 500 for controlling the integrated air conditioner may further include:

a fourth adjustment module, configured to, in a case where a difference between the piping temperature of the evaporator and an ambient temperature of the integrated air conditioner is within a preset range, and/or a duration for which the integrated air conditioner is in operation in the cooling mode reaches a sixth preset duration, adjust the opening of the first damper from a second target opening to the third target opening.

In some embodiments of the present disclosure, the device 500 for controlling the integrated air conditioner may further include:

a second switching module, configured to, in response to the integrated air conditioner meeting a preset defrosting termination condition, switch the operation mode of the integrated air conditioner from the cooling mode to the heating mode.

In some embodiments of the present disclosure, the integrated air conditioner further includes a four-way valve, and the second switching module includes:

• • a fourth control sub-module, configured to, in response to the integrated air conditioner meeting the preset defrosting termination condition, control the compressor to stop operating and control the four-way valve to be powered on; and
  • a fifth control sub-module, configured to, in a case where a duration for which the compressor stops operating reaches a seventh preset duration and the four-way valve is in a powered-on state, control the compressor to operate to switch the operation mode of the integrated air conditioner from the cooling mode to the heating mode.

In some embodiments of the present disclosure, the fourth control sub-module is configured to, in response to the integrated air conditioner meeting the preset defrosting termination condition, control the four-way valve to be powered on after an eighth preset duration, and the eighth preset duration is less than the seventh preset duration.

In some embodiments of the present disclosure, the integrated air conditioner further includes an expansion valve, and the second switching module further includes:

• • a sixth control sub-module, configured to, in response to the integrated air conditioner meeting the preset defrosting termination condition, control the expansion valve to operate at a preset maximum valve opening; and
  • the device 500 for controlling the integrated air conditioner may further include:
  • a sixth control sub-module, configured to, in a case where the integrated air conditioner is in operation in the heating mode, control the expansion valve to operate at a second preset valve opening, and the second preset valve opening is less than or equal to the maximum valve opening.

Regarding the device in the above embodiments, the specific manner in which each module performs operations has been described in detail in the method embodiments, which will not be elaborated here.

The present disclosure further provides a computer-readable storage medium having computer program instructions stored thereon, which, when executed by a processor, implement steps of the method for controlling the integrated air conditioner provided by the present disclosure.

FIG. 6 shows a block diagram of an integrated air conditioner according to an embodiment of the present disclosure. For example, the integrated air conditioner 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a gaming console, a tablet, a medical device, exercise device, a personal digital assistant, etc.

Referring to FIG. 6, the integrated air conditioner 800 may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input/output interface 812, a sensor component 814, and a communication component 816. In addition, the integrated air conditioner 800 may further include: a fan blade motor, a first fan blade, a second fan blade, a first damper, a second damper, an evaporator, a condenser, a compressor, an expansion valve, a four-way valve, etc.

The processing component 802 typically controls overall operations of the integrated air conditioner 800, such as the operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps in the above described methods for controlling the integrated air conditioner. Moreover, the processing component 802 may include one or more modules which facilitate the interaction between the processing component 802 and other components. For instance, the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support the operation of the integrated air conditioner 800. Examples of such data include instructions for any applications or methods operated on the integrated air conditioner 800, contact data, phonebook data, messages, pictures, video, etc. The memory 804 may be implemented using any type of volatile or non-volatile memory devices, or a combination thereof, such as a static random access memory (SRAM), an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a programmable read-only memory (PROM), a read-only memory (ROM), a magnetic memory, a flash memory, a magnetic or optical disk.

The power component 806 provides power to various components of the integrated air conditioner 800. The power component 806 may include a power management system, one or more power sources, and any other components associated with the generation, management, and distribution of power in the integrated air conditioner 800.

The multimedia component 808 includes a screen providing an output interface between the integrated air conditioner 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes the touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may not only sense a boundary of a touch or swipe action, but also sense a duration and a pressure associated with the touch or swipe action. In some embodiments, the multimedia component 808 includes a front camera and/or a rear camera. The front camera and the rear camera may receive an external multimedia datum while the E integrated air conditioner 800 is in an operation mode, such as a photographing mode or a video mode. Each of the front camera and the rear camera may be a fixed optical lens system or have focus and optical zoom capability.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a microphone (“MIC”) configured to receive an external audio signal when the integrated air conditioner 800 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, the audio component 810 further includes a speaker to output audio signals.

The input/output interface 812 provides an interface between the processing component 802 and peripheral interface modules, such as a keyboard, a click wheel, buttons, and the like. The buttons may include, but are not limited to, a home button, a volume button, a starting button, and a locking button.

The sensor component 814 includes one or more sensors to provide state assessments of various aspects of the integrated air conditioner 800. For instance, the sensor component 814 may detect an open/closed state of the integrated air conditioner 800, relative positioning of components, e.g., the display and the keypad, of the integrated air conditioner 800, a change in position of the integrated air conditioner 800 or a component of the integrated air conditioner 800, a presence or absence of user contact with the integrated air conditioner 800, an orientation or an acceleration/deceleration of the integrated air conditioner 800, and a change in temperature of the integrated air conditioner 800. The sensor component 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor component 814 may further include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 814 may further include an accelerometer sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate communication, wired or wirelessly, between the integrated air conditioner 800 and other devices. The integrated air conditioner 800 can access a wireless network based on a communication standard, such as WiFi, 2G, 3G, or a combination thereof. In an embodiment, the communication component 816 receives a broadcast signal or broadcast associated information from an external broadcast management system via a broadcast channel. In an embodiment, the communication component 816 further includes a near field communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on a radio frequency identification (RFID) technology, an infrared data association (IrDA) technology, an ultra-wideband (UWB) technology, a Bluetooth (BT) technology, and other technologies.

In embodiments of the present disclosure, the integrated air conditioner 800 may be implemented with one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic components, for performing the method for controlling the integrated air conditioner as described above.

In embodiments of the present disclosure, there is further provided a non-transitory computer-readable storage medium including instructions, such as the memory 804 including instructions executable by the processor 820 in the integrated air conditioner 800 to complete the above-described method for controlling the integrated air conditioner. For example, the non-transitory computer-readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disc, an optical data storage device, and the like.

In another embodiment of the present disclosure, there is further provided a computer program product. The computer program product includes a computer program that can be executed by a programmable device. The computer program has a code portion for executing the above-mentioned method for controlling the integrated air conditioner when executed by the programmable device.

The present disclosure provides a method and device for controlling an integrated air conditioner, an integrated air conditioner, a medium and a product.

According to a first aspect of embodiments of the present disclosure, there is provided a method for controlling an integrated air conditioner, the integrated air conditioner including a compressor, an evaporator, and a first damper corresponding to the evaporator, wherein the method includes:

in a case where the integrated air conditioner is in operation in a heating mode, obtaining a piping temperature of the evaporator and/or a duration for which the compressor is in operation in the heating mode; and in a case where the duration for which the compressor is in operation in the heating mode reaches a first preset duration, and/or the piping temperature of the evaporator is greater than a first preset temperature, increasing an opening of the first damper from a third target opening to a first target opening.

In some embodiments of the present disclosure, the method further includes: in a case where the opening of the first damper increases to the first target opening, counting a duration of the opening of the first damper at the first target opening; and increasing the opening of the first damper from the first target opening to a second target opening according to at least the duration of the opening of the first damper at the first target opening and/or the piping temperature of the evaporator.

In some embodiments of the present disclosure, increasing the opening of the first damper from the first target opening to the second target opening according to at least the duration of the opening of the first damper at the first target opening and/or the piping temperature of the evaporator includes: in a case where a preset condition is met, increasing the opening of the first damper from the first target opening to the second target opening; wherein the preset condition includes that the piping temperature of the evaporator is greater than a second preset temperature and the duration of the opening of the first damper at the first target opening reaches a second preset duration, the piping temperature of the evaporator is greater than a third preset temperature, and the duration of the opening of the first damper at the first target opening reaches a third preset duration greater than the second preset duration.

In some embodiments of the present disclosure, the integrated air conditioner further includes a condenser and a second damper corresponding to the condenser, and the method further includes: in a case where the integrated air conditioner is in operation in the heating mode, controlling an opening of the second damper to maintain at a second target opening.

In some embodiments of the present disclosure, the integrated air conditioner further includes a fan blade motor, and the method further includes: in a case where the integrated air conditioner is in operation in the heating mode, controlling the fan blade motor to operate at a first speed, and in a case where the opening of the first damper increases to the second target opening, increasing the speed of the fan blade motor.

In some embodiments of the present disclosure, the method further includes: determining whether the integrated air conditioner meets a preset defrosting condition; and in response to determining that the integrated air conditioner meets the preset defrosting condition, switching an operation mode of the integrated air conditioner to a cooling mode, wherein the integrated air conditioner is capable of defrosting the condenser in a case of operating in the cooling mode.

In some embodiments of the present disclosure, the integrated air conditioner further includes a condenser and a second damper corresponding to the condenser, and the method further includes at least one of: in a case where the integrated air conditioner is in operation in the cooling mode, controlling the compressor to operate at a preset defrosting frequency; in a case where the integrated air conditioner is in operation in the cooling mode, controlling the opening of the first damper to maintain at a third target opening; or in a case where the integrated air conditioner is in operation in the cooling mode, controlling an opening of the second damper to maintain at a second target opening greater than the third target opening.

In some embodiments of the present disclosure, the integrated air conditioner further includes a four-way valve, and in response to determining that the integrated air conditioner meets the preset defrosting condition, switching the operation mode of the integrated air conditioner to the cooling mode includes: in response to determining that the integrated air conditioner meets the preset defrosting condition, controlling the compressor to stop operating and controlling the four-way valve to be powered off; and in a case where a duration of the compressor stopping operation reaches a fourth preset duration and the four-way valve is in a powered-off state, controlling the compressor to operate to switch the operation mode of the integrated air conditioner to the cooling mode.

In some embodiments of the present disclosure, in response to determining that the integrated air conditioner meets the preset defrosting condition, controlling the four-way valve to be powered off includes: in response to determining that the integrated air conditioner meets the preset defrosting condition, controlling the four-way valve to be powered off after a fifth preset duration, wherein the fifth preset duration is less than the fourth preset duration.

In some embodiments of the present disclosure, the integrated air conditioner further includes an expansion valve, and in response to determining that the integrated air conditioner meets the preset defrosting condition, switching the operation mode of the integrated air conditioner to the cooling mode further includes: in response to determining that the integrated air conditioner meets the preset defrosting condition, controlling the expansion valve to operate with a preset maximum valve opening; and the method further includes: in a case where the integrated air conditioner is in operation in the cooling mode, controlling the expansion valve to operate with a first preset valve opening smaller than a maximum valve opening.

In some embodiments of the present disclosure, the method further includes: in a case where a difference between the piping temperature of the evaporator and an ambient temperature of the integrated air conditioner is within a preset range, and/or a duration of the integrated air conditioner being in operation in the cooling mode reaches a sixth preset duration, adjusting the opening of the first damper from the second target opening to a third target opening.

In some embodiments of the present disclosure, the method further includes: in response to the integrated air conditioner meeting a preset defrosting termination condition, switching the operation mode of the integrated air conditioner from the cooling mode to the heating mode.

In some embodiments of the present disclosure, the integrated air conditioner further includes a four-way valve, and in response to the integrated air conditioner meeting the preset defrosting termination condition, switching the operation mode of the integrated air conditioner from the cooling mode to the heating mode includes: in response to the integrated air conditioner meeting the preset defrosting termination condition, controlling the compressor to stop operating and controlling the four-way valve to be powered on; and in a case where a duration of the compressor stopping operation reaches a seventh preset duration and the four-way valve is in a powered-on state, controlling the compressor to operate to switch the operation mode of the integrated air conditioner from the cooling mode to the heating mode.

In some embodiments of the present disclosure, in response to the integrated air conditioner meeting the preset defrosting termination condition, controlling the four-way valve to be powered on includes: in response to the integrated air conditioner meeting the preset defrosting termination condition, controlling the four-way valve to be powered on after an eighth preset duration, and the eighth preset duration is less than the seventh preset duration.

In some embodiments of the present disclosure, the integrated air conditioner further includes an expansion valve, and in response to the integrated air conditioner meeting the preset defrosting termination condition, switching the operation mode of the integrated air conditioner from the cooling mode to the heating mode further includes: in response to the integrated air conditioner meeting the preset defrosting termination condition, controlling the expansion valve to operate at a preset maximum valve opening; and the method further includes:

in a case where the integrated air conditioner is in operation in the heating mode, controlling the expansion valve to operate at a second preset valve opening, wherein the second preset valve opening is less than or equal to the maximum valve opening.

According to a second aspect of embodiments of the present disclosure, there is provided a device for controlling an integrated air conditioner,

• • the integrated air conditioner includes a compressor, an evaporator and a first damper corresponding to the evaporator, and the device includes:
  • a first obtaining module, configured to, in a case where the integrated air conditioner is in operation in a heating mode, obtain a piping temperature of the evaporator and/or a duration for which the compressor is in operation in the heating mode; and
  • a first adjustment module, configured to, in a case where the duration for which the compressor is in operation in the heating mode reaches a first preset duration, and/or the piping temperature of the evaporator is greater than a first preset temperature, increase an opening of the first damper from a third target opening to a first target opening.

According to a third aspect of embodiments of the present disclosure, there is provided an integrated air conditioner, including:

• • a compressor, an evaporator and a first damper corresponding to the evaporator;
  • a processor; and
  • a memory configured to store executable instructions of the processor;
  • wherein the processor is configured to execute a computer program in the memory to implement steps of the method for controlling the integrated air conditioner provided in the first aspect of embodiments of the present disclosure.

According to a fourth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium having computer program instructions stored thereon, which, when executed by a processor, implement steps of the method for controlling the integrated air conditioner provided in the first aspect of embodiments of the present disclosure.

According to a fifth aspect of embodiments of the present disclosure, there is provided a computer program product including a computer program which, when executed by a processor, implements steps of the method for controlling the integrated air conditioner provided in the first aspect of embodiments of the present disclosure.

It should be understood that unless otherwise specifically noted, features of some embodiments of the present disclosures described herein may be combined with each other. As used herein, the term “and/or” includes any one of the related listed items and any combination of any two or more; similarly, “at least one of . . . ” includes any one of the related listed items and any combination of any two or more.

In addition, the word “exemplary” is used herein to mean serving as an example, instance, or diagram. Any aspect or design described herein as “exemplary” is not necessarily to be understood as being advantageous over other aspects or designs. Rather, the use of the word exemplary is intended to present concepts in a concrete manner. As used herein, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or”. That is, unless otherwise specified or clear from the context, “X applies A or B” is intended to mean any one of the natural inclusive arrangements. That is, if X applies A; X applies B; or X applies both A and B, then “X applies A or B” is satisfied under any of the aforementioned instances.

Likewise, although the present disclosure has been shown and described with respect to one or more implementations, equivalent variations and modifications will occur to those skilled in the art after reading and understanding the specification and drawings. The present disclosure includes all such modifications and variations and is limited only by the scope of the claims. In particular, with respect to the various functions performed by the components (e.g., elements, resources, etc.) described above, unless otherwise indicated, the terms used to describe such components are intended to correspond to any component (functionally equivalent) that performs the specific functions of the described components, even if the structure is not equivalent to the disclosed structure. In addition, although specific features of the present disclosure may have been disclosed with respect to only one of several implementations, such features may be combined with one or more other features of other implementations as may be desired and conducive to any given or specific application. In addition, with respect to “including”, “having”, “containing”, “owning”, or variations thereof used in a specific embodiment or claim, such terms are intended to be inclusive in a manner similar to the term “comprising/including”.

Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the present disclosure disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure, which are in accordance with the general principles of the present disclosure and include common general knowledge or conventional technical means in the art that are not disclosed in the present disclosure. The specification and embodiments are illustrative, and the real scope and spirit of the present disclosure is defined by the appended claims.

It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.