1. A high-temperature sterilization and defrosting control method of an air conditioner is characterized by comprising the following steps:

after receiving a high-temperature sterilization instruction, judging the current operation state of the air conditioner;

if the air conditioner is currently in a heating operation state, judging whether the air conditioner meets a preset critical defrosting condition, wherein the critical defrosting condition comprises the following steps: the accumulated running time of the compressor is greater than or equal to a first preset time threshold, the difference value between the temperature value of the outdoor heat exchanger and the outdoor environment temperature is greater than or equal to a first preset temperature threshold and smaller than a second preset temperature threshold, and the evaporation temperature of the air conditioner is smaller than a third preset temperature threshold;

if the air conditioner does not meet the critical defrosting condition, immediately controlling the air conditioner to enter a high-temperature sterilization mode so as to execute a high-temperature sterilization action, and synchronously executing a preset first control strategy in the process of executing the high-temperature sterilization action, wherein the first control strategy comprises the following steps:

judging whether the air conditioner meets a preset conventional defrosting condition or not, wherein the conventional defrosting condition comprises the following steps: the accumulated running time of the compressor is greater than or equal to a second preset time threshold, the difference value between the temperature value of the outdoor heat exchanger and the outdoor environment temperature is greater than or equal to the second preset temperature threshold, and the evaporation temperature of the air conditioner is smaller than a third preset temperature threshold, wherein the first preset time threshold is smaller than the second preset time threshold;

if the air conditioner meets the conventional defrosting condition, controlling an indoor motor to reduce the rotating speed until the air conditioner meets a preset high-temperature sterilization exit condition, wherein the high-temperature sterilization exit condition comprises the following steps: and in the high-temperature sterilization mode, the temperature value of the indoor heat exchanger meets the condition that the accumulated time of a preset sterilization temperature interval reaches a third preset time threshold.

2. The method for controlling high-temperature sterilization and defrosting of an air conditioner according to claim 1, wherein after the controlling of the indoor motor to reduce the rotation speed, the method further comprises:

and controlling the gear rotating speed of the outdoor motor to be increased to the highest gear rotating speed of the outdoor motor, or increasing the opening degree of the expansion valve by a preset opening degree, or keeping the running frequency of the compressor unchanged so as to slow down the frosting speed.

3. The method for controlling high-temperature sterilization and defrosting of an air conditioner according to claim 1, further comprising, after the air conditioner satisfies a preset high-temperature sterilization exit condition:

and controlling the air conditioner to execute a defrosting action, and after the defrosting action is finished, controlling the air conditioner to exit the high-temperature sterilization mode.

4. The method for controlling high-temperature sterilization and defrosting of an air conditioner according to claim 1 or 3, further comprising, after determining whether the air conditioner satisfies a preset critical defrosting condition:

and if the air conditioner meets the critical defrosting condition, controlling the air conditioner to execute a defrosting action, and after the defrosting action is finished, controlling the air conditioner to enter a high-temperature sterilization mode to execute a high-temperature sterilization action until the air conditioner meets a preset high-temperature sterilization exit condition, and controlling the air conditioner to exit the high-temperature sterilization mode.

5. The method for controlling high-temperature sterilization and defrosting of an air conditioner according to claim 1, wherein the controlling of the indoor motor to reduce the rotation speed comprises:

if the current rotating speed of the indoor motor is higher than the lowest gear rotating speed of the indoor motor, controlling the indoor motor to reduce 1 rotating speed gear;

and if the current rotating speed of the indoor motor is equal to the lowest gear rotating speed of the indoor motor, controlling the rotating speed of the indoor motor to reduce a preset rotating speed value.

6. The method of claim 1 or 5, further comprising, after determining the current operating state of the air conditioner:

and if the air conditioner is in a standby state at present, immediately controlling the air conditioner to enter a high-temperature sterilization mode so as to execute a high-temperature sterilization action, and synchronously executing the first control strategy in the process of executing the high-temperature sterilization action.

7. A high-temperature sterilization and defrosting control device of an air conditioner is characterized by comprising:

the first judgment module is used for judging the current running state of the air conditioner after receiving a high-temperature sterilization instruction;

a second judging module, configured to judge whether the air conditioner satisfies a preset critical defrosting condition when the air conditioner is currently in a heating operation state, where the critical defrosting condition includes: the accumulated running time of the compressor is greater than or equal to a first preset time threshold, the difference value between the temperature value of the outdoor heat exchanger and the outdoor environment temperature is greater than or equal to a first preset temperature threshold and smaller than a second preset temperature threshold, and the evaporation temperature of the air conditioner is smaller than a third preset temperature threshold;

the control module is used for immediately controlling the air conditioner to enter a high-temperature sterilization mode when the air conditioner does not meet the critical defrosting condition so as to execute a high-temperature sterilization action, and synchronously executing a preset first control strategy in the process of executing the high-temperature sterilization action, wherein the first control strategy comprises:

judging whether the air conditioner meets a preset conventional defrosting condition or not, wherein the conventional defrosting condition comprises the following steps: the accumulated running time of the compressor is greater than or equal to a second preset time threshold, the difference value between the temperature value of the outdoor heat exchanger and the outdoor environment temperature is greater than or equal to the second preset temperature threshold, and the evaporation temperature of the air conditioner is smaller than a third preset temperature threshold, wherein the first preset time threshold is smaller than the second preset time threshold;

when the air conditioner meets the conventional defrosting condition, controlling an indoor motor to reduce the rotating speed until the air conditioner meets a preset high-temperature sterilization exit condition, wherein the high-temperature sterilization exit condition comprises the following steps: and in the high-temperature sterilization mode, the temperature value of the indoor heat exchanger meets the condition that the accumulated time of a preset sterilization temperature interval reaches a third preset time threshold.

8. The apparatus of claim 7, wherein the control module is further configured to:

and controlling the air conditioner to execute a defrosting action, and after the defrosting action is finished, controlling the air conditioner to exit the high-temperature sterilization mode.

9. The apparatus of claim 7 or 8, wherein the control module is further configured to:

and when the air conditioner meets the critical defrosting condition, controlling the air conditioner to execute a defrosting action, and after the defrosting action is finished, controlling the air conditioner to enter a high-temperature sterilization mode to execute a high-temperature sterilization action, and controlling the air conditioner to exit the high-temperature sterilization mode until the air conditioner meets a preset high-temperature sterilization exit condition.

10. An air conditioner, comprising:

the high-temperature sterilization and defrosting control apparatus of an air conditioner according to claims 7-9; or

A processor, a memory, and a pasteurization and defrosting control program of an air conditioner stored on the memory and operable on the processor, the pasteurization and defrosting control program of the air conditioner, when executed by the processor, implementing the pasteurization and defrosting control method of the air conditioner according to any one of claims 1 to 6.

11. A computer-readable storage medium, wherein a high-temperature sterilization and defrosting control program of an air conditioner is stored on the computer-readable storage medium, and when executed by a processor, implements the high-temperature sterilization and defrosting control method of the air conditioner according to any one of claims 1 to 6.

Background

Along with the health requirements of users on the air conditioner in the use process, the high-temperature sterilization function of the air conditioner becomes the focus of attention of related technical personnel, the high-temperature sterilization function of the air conditioner is to inactivate germs and viruses by utilizing the high temperature of an indoor heat exchanger, and when the temperature of the indoor heat exchanger exceeds 56 ℃ and lasts for 30 minutes, the viruses can be inactivated, so that the high-temperature sterilization function is to control the temperature of a coil pipe of the indoor heat exchanger to be maintained above 56 ℃. In addition, the maximum sterilization condensation temperature cannot exceed the maximum condensation pressure 4.15MPa specified by the compressor, the corresponding condensation temperature is 64 ℃, and different refrigerants have different specified maximum condensation pressure boundaries and corresponding condensation temperatures.

However, when high-temperature sterilization is performed in winter, because the evaporation temperature of the outdoor heat exchanger is lower than 0 ℃, frost is easily formed, and if defrosting conditions are met in the high-temperature sterilization process, the high-temperature sterilization time may be insufficient and the sterilization effect may be affected; or, the high-temperature sterilization is continued after the defrosting is finished, so that the defrosting action is performed in the high-temperature sterilization process, the duration time of the high-temperature sterilization process is too long, and the user experience is reduced.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art.

Therefore, an object of the present invention is to provide a method for controlling high-temperature sterilization and defrosting of an air conditioner, which determines whether the air conditioner satisfies a critical defrosting condition when the air conditioner is in a heating operation state, controls the air conditioner to immediately enter a high-temperature sterilization mode to perform a high-temperature sterilization operation when the air conditioner does not satisfy the critical defrosting condition, and synchronously performs a first control strategy during the high-temperature sterilization process, controls an indoor motor to reduce a rotation speed to slow down a frosting speed when it is determined that the air conditioner satisfies a conventional defrosting condition, so that the high-temperature sterilization effect of the air conditioner is not affected due to an excessively fast frosting speed during the high-temperature sterilization process, thereby preventing the problems that the high-temperature sterilization time is insufficient and the sterilization effect is affected due to the defrosting condition being satisfied during the high-temperature sterilization process of the air conditioner, and continues the high-temperature sterilization after the defrosting is completed, the high-temperature sterilization time is prolonged, so that the sterilization effect is ensured, and the user experience is improved.

Therefore, a second object of the present invention is to provide a high-temperature sterilization and defrosting control device for an air conditioner.

To this end, a third object of the present invention is to provide an air conditioner.

To this end, a fourth object of the invention is to propose a computer-readable storage medium.

In order to achieve the above object, an embodiment of a first aspect of the present invention provides a high-temperature sterilization and defrosting control method for an air conditioner, the method including: after receiving a sterilization instruction, judging whether the current environment meets a preset condition, wherein the preset condition comprises: after receiving a high-temperature sterilization instruction, judging the current operation state of the air conditioner; if the air conditioner is currently in a heating operation state, judging whether the air conditioner meets a preset critical defrosting condition, wherein the critical defrosting condition comprises the following steps: the accumulated running time of the compressor is greater than or equal to a first preset time threshold, the difference value between the temperature value of the outdoor heat exchanger and the outdoor environment temperature is greater than or equal to a first preset temperature threshold and smaller than a second preset temperature threshold, and the evaporation temperature of the air conditioner is smaller than a third preset temperature threshold; if the air conditioner does not meet the critical defrosting condition, immediately controlling the air conditioner to enter a high-temperature sterilization mode so as to execute a high-temperature sterilization action, and synchronously executing a preset first control strategy in the process of executing the high-temperature sterilization action, wherein the first control strategy comprises the following steps: judging whether the air conditioner meets a preset conventional defrosting condition or not, wherein the conventional defrosting condition comprises the following steps: the accumulated running time of the compressor is greater than or equal to a second preset time threshold, the difference value between the temperature value of the outdoor heat exchanger and the outdoor environment temperature is greater than or equal to the second preset temperature threshold, and the evaporation temperature of the air conditioner is smaller than a third preset temperature threshold, wherein the first preset time threshold is smaller than the second preset time threshold; if the air conditioner meets the conventional defrosting condition, controlling an indoor motor to reduce the rotating speed until the air conditioner meets a preset high-temperature sterilization quit condition, wherein the high-temperature sterilization quit condition comprises the following steps: and in the high-temperature sterilization mode, the temperature value of the indoor heat exchanger meets the condition that the accumulated time of a preset sterilization temperature interval reaches a third preset time threshold.

According to the high-temperature sterilization and defrosting control method of the air conditioner, when the air conditioner is in a heating operation state, whether the air conditioner meets a defrosting critical condition is judged, when the air conditioner does not meet the critical defrosting condition, the air conditioner is controlled to immediately enter a high-temperature sterilization mode to execute a high-temperature sterilization action, in the process of executing the high-temperature sterilization action, a first control strategy is synchronously executed, whether the air conditioner meets a conventional defrosting condition is judged, when the air conditioner is determined to meet the conventional defrosting condition, an indoor motor is controlled to reduce the rotating speed so as to slow down the frosting speed, so that the high-temperature sterilization effect cannot be influenced due to the fact that the frosting speed is too high in the high-temperature sterilization process of the air conditioner, and therefore the problems that the high-temperature sterilization time is insufficient and the sterilization effect is influenced due to the fact that the defrosting condition is met in the high-temperature sterilization process of the air conditioner can be avoided, and the high-temperature sterilization is continued after the defrosting is finished, so that the high-temperature sterilization time is prolonged, and the user experience is improved while the sterilization effect is ensured.

In some embodiments, after the controlling the indoor motor to reduce the rotation speed, the method further includes: and controlling the gear rotating speed of the outdoor motor to be increased to the highest gear rotating speed of the outdoor motor, or increasing the opening degree of the expansion valve by a preset opening degree, or keeping the running frequency of the compressor unchanged so as to slow down the frosting speed.

In some embodiments, after the air conditioner satisfies a preset high temperature sterilization exit condition, the method further includes: and controlling the air conditioner to execute a defrosting action, and after the defrosting action is finished, controlling the air conditioner to exit the high-temperature sterilization mode.

In some embodiments, after determining whether the air conditioner satisfies a preset critical defrosting condition, the method further includes: and if the air conditioner meets the critical defrosting condition, controlling the air conditioner to execute a defrosting action, and after the defrosting action is finished, controlling the air conditioner to enter a high-temperature sterilization mode to execute a high-temperature sterilization action until the air conditioner meets a preset high-temperature sterilization exit condition, and controlling the air conditioner to exit the high-temperature sterilization mode.

In some embodiments, the controlling the indoor motor to reduce the rotation speed comprises: if the current rotating speed of the indoor motor is higher than the lowest gear rotating speed of the indoor motor, controlling the indoor motor to reduce 1 rotating speed gear; and if the current rotating speed of the indoor motor is equal to the lowest gear rotating speed of the indoor motor, controlling the rotating speed of the indoor motor to reduce a preset rotating speed value.

In some embodiments, after determining the current operation state of the air conditioner, the method further includes: and if the air conditioner is in a standby state at present, immediately controlling the air conditioner to enter a high-temperature sterilization mode so as to execute a high-temperature sterilization action, and synchronously executing the first control strategy in the process of executing the high-temperature sterilization action.

In order to achieve the above object, an embodiment of a second aspect of the present invention provides a high-temperature sterilization and defrosting control apparatus for an air conditioner, the high-temperature sterilization and defrosting control apparatus including: the first judgment module is used for judging the current running state of the air conditioner after receiving a high-temperature sterilization instruction; a second judging module, configured to judge whether the air conditioner satisfies a preset critical defrosting condition when the air conditioner is currently in a heating operation state, where the critical defrosting condition includes: the accumulated running time of the compressor is greater than or equal to a first preset time threshold, the difference value between the temperature value of the outdoor heat exchanger and the outdoor environment temperature is greater than or equal to a first preset temperature threshold and smaller than a second preset temperature threshold, and the evaporation temperature of the air conditioner is smaller than a third preset temperature threshold; the control module is used for immediately controlling the air conditioner to enter a high-temperature sterilization mode when the air conditioner does not meet the critical defrosting condition so as to execute a high-temperature sterilization action, and synchronously executing a preset first control strategy in the process of executing the high-temperature sterilization action, wherein the first control strategy comprises: judging whether the air conditioner meets a preset conventional defrosting condition or not, wherein the conventional defrosting condition comprises the following steps: the accumulated running time of the compressor is greater than or equal to a second preset time threshold, the difference value between the temperature value of the outdoor heat exchanger and the outdoor environment temperature is greater than or equal to the second preset temperature threshold, and the evaporation temperature of the air conditioner is smaller than a third preset temperature threshold, wherein the first preset time threshold is smaller than the second preset time threshold; when the air conditioner meets the conventional defrosting condition, controlling an indoor motor to reduce the rotating speed until the air conditioner meets a preset high-temperature sterilization quit condition, wherein the high-temperature sterilization quit condition comprises the following steps: and in the high-temperature sterilization mode, the temperature value of the indoor heat exchanger meets the condition that the accumulated time of a preset sterilization temperature interval reaches a third preset time threshold.

According to the high-temperature sterilization and defrosting control device of the air conditioner, when the air conditioner is in a heating operation state, whether the air conditioner meets a defrosting critical condition is judged, when the air conditioner does not meet the critical defrosting condition, the air conditioner is controlled to immediately enter a high-temperature sterilization mode to execute a high-temperature sterilization action, in the process of executing the high-temperature sterilization action, a first control strategy is synchronously executed, whether the air conditioner meets a conventional defrosting condition is judged, when the air conditioner is determined to meet the conventional defrosting condition, an indoor motor is controlled to reduce the rotating speed so as to slow down the frosting speed, so that the high-temperature sterilization effect cannot be influenced due to the fact that the frosting speed is too high in the high-temperature sterilization process of the air conditioner, and therefore the problems that the high-temperature sterilization time is insufficient and the sterilization effect is influenced due to the fact that the defrosting condition is met in the high-temperature sterilization process of the air conditioner can be avoided, and the high-temperature sterilization is continued after the defrosting is finished, so that the high-temperature sterilization time is prolonged, and the user experience is improved while the sterilization effect is ensured.

In some embodiments, the control module is further configured to: and controlling the air conditioner to execute a defrosting action, and after the defrosting action is finished, controlling the air conditioner to exit the high-temperature sterilization mode.

In some embodiments, the control module is further configured to: and when the air conditioner meets the critical defrosting condition, controlling the air conditioner to execute a defrosting action, and after the defrosting action is finished, controlling the air conditioner to enter a high-temperature sterilization mode to execute a high-temperature sterilization action, and controlling the air conditioner to exit the high-temperature sterilization mode until the air conditioner meets a preset high-temperature sterilization exit condition.

To achieve the above object, an embodiment of a third aspect of the present invention proposes an air conditioner including: the high-temperature sterilization and defrosting control device of the air conditioner in the embodiment; or a processor, a memory and a high-temperature sterilization and defrosting control program of the air conditioner stored on the memory and capable of running on the processor, wherein when the high-temperature sterilization and defrosting control program of the air conditioner is executed by the processor, the high-temperature sterilization and defrosting control method of the air conditioner is realized.

According to the air conditioner provided by the embodiment of the invention, when the air conditioner is in a heating operation state, whether the air conditioner meets a defrosting critical condition is judged, when the air conditioner does not meet the critical defrosting condition, the air conditioner is controlled to immediately enter a high-temperature sterilization mode to execute a high-temperature sterilization action, a first control strategy is synchronously executed in the process of executing the high-temperature sterilization action, whether the air conditioner meets a conventional defrosting condition is judged, when the air conditioner is determined to meet the conventional defrosting condition, an indoor motor is controlled to reduce the rotating speed so as to slow down the frosting speed, so that the high-temperature sterilization effect cannot be influenced due to the fact that the frosting speed is too high in the high-temperature sterilization process of the air conditioner, the problems that the high-temperature sterilization time is insufficient and the sterilization effect is influenced due to the fact that the defrosting is carried out due to the fact that the defrosting condition is met in the high-temperature sterilization process of the air conditioner can be avoided, and the high-temperature sterilization is continued after the defrosting is finished, the high-temperature sterilization time is prolonged, so that the sterilization effect is ensured, and the user experience is improved.

To achieve the above object, an embodiment of a fourth aspect of the present invention provides a computer-readable storage medium having a high-temperature sterilization and defrosting control program of an air conditioner stored thereon, wherein the high-temperature sterilization and defrosting control program of the air conditioner, when executed by a processor, implements the high-temperature sterilization and defrosting control method of the air conditioner as described in the above embodiment.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a flowchart of a high-temperature sterilization and defrosting control method of an air conditioner according to an embodiment of the present invention;

FIG. 2 is a flowchart illustrating a method for controlling high-temperature sterilization and defrosting of an air conditioner according to an embodiment of the present invention;

fig. 3 is a block diagram of a sterilization control apparatus of an air conditioner according to an embodiment of the present invention.

Detailed Description

Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.

In the embodiment of the invention, an interval formed by an upper limit sterilization temperature value and a lower limit sterilization temperature value is defined as a sterilization temperature interval, the lower limit sterilization temperature value is defined as Tc1, the upper limit sterilization temperature value is defined as Tc2, the temperature value Tc of the indoor heat exchanger is between the lower limit sterilization temperature value Tc1 and the upper limit sterilization temperature value Tc2, for example, when Tc1 is not less than Tc < Tc2, the temperature value Tc of the indoor heat exchanger is considered to be in the sterilization temperature interval, and when the temperature value Tc of the indoor heat exchanger is in the sterilization temperature interval, the high-temperature sterilization effect can be effectively ensured.

Specifically, the lower sterilization temperature value Tc1 is determined by the lowest sterilization temperature, typically 56 ℃, the upper sterilization temperature value Tc2 is determined by the maximum condensation pressure of the compressor specification, and the corresponding upper sterilization temperature value Tc2 is, for example, 60 ℃ when the condensation temperature corresponding to the maximum condensation pressure is 64 ℃. In addition, when high-temperature sterilization is executed in winter, the temperature value Tc of the indoor heat exchanger needs to be controlled to be in the sterilization temperature interval to realize the high-temperature sterilization function of the air conditioner, but when the high-temperature sterilization is executed, the evaporation temperature of the outdoor heat exchanger is lower than 0 ℃, the frosting is easy to occur, and the high-temperature sterilization effect of the air conditioner can be influenced.

The following describes a method for controlling high-temperature sterilization and defrosting of an air conditioner according to an embodiment of the present invention.

The method for controlling high-temperature sterilization and defrosting of an air conditioner according to an embodiment of the present invention will be described with reference to fig. 1, and as shown in fig. 1, the method for controlling high-temperature sterilization and defrosting of an air conditioner according to an embodiment of the present invention includes at least steps S1 to S4.

And step S1, after receiving the high-temperature sterilization instruction, judging the current operation state of the air conditioner.

In an embodiment, the current operating state of the air conditioner may be a heating operating state or a standby state, and after receiving the high-temperature sterilization instruction, the current operating state of the air conditioner is determined, so that the subsequent high-temperature sterilization process and the subsequent defrosting process of the air conditioner are controlled according to the current operating state of the air conditioner.

For example, the user may send a high-temperature sterilization instruction through, but not limited to, a remote controller of the air conditioner or a related button on an operation interface on a body of the air conditioner, and after receiving the high-temperature sterilization instruction, the air conditioner determines a current operation state of the air conditioner, for example, after receiving the high-temperature sterilization instruction, determines that the current operation state of the air conditioner is a heating operation state, and correspondingly controls a high-temperature sterilization and defrosting process of the air conditioner according to the heating operation state. For another example, after receiving the high-temperature sterilization instruction, determining that the current operation state of the air conditioner is the standby operation state, and correspondingly controlling the high-temperature sterilization and defrosting process of the air conditioner according to the standby operation state.

Step S2, if the air conditioner is currently in the heating operation state, determining whether the air conditioner satisfies a preset critical defrosting condition, where the critical defrosting condition includes: the accumulated running time of the compressor is greater than or equal to a first preset time threshold, the difference value between the temperature value of the outdoor heat exchanger and the outdoor environment temperature is greater than or equal to a first preset temperature threshold and smaller than a second preset temperature threshold, and the evaporation temperature of the air conditioner is smaller than a third preset temperature threshold.

In an embodiment, the critical defrosting condition of the air conditioner indicates that a certain amount of frost is formed on the outdoor heat exchanger, and the frosting amount is smaller than the full frosting amount of the outdoor heat exchanger, that is, the state before the full frosting of the outdoor heat exchanger occurs, and at this time, the heating capacity of the air conditioner is still strong. If the heating mode is continuously operated for a period of time, the outdoor heat exchanger is full of frost, so that the conventional defrosting condition of the air conditioner is met.

Specifically, when it is determined that the air conditioner is currently in the heating operation state, it is further determined whether the air conditioner satisfies a critical defrosting condition, that is, whether the accumulated operation time of the compressor is greater than or equal to a first preset time threshold, whether a difference between a temperature value of the outdoor heat exchanger and an outdoor environment temperature is greater than or equal to the first preset temperature threshold and less than a second preset temperature threshold, and whether an evaporation temperature of the air conditioner is less than a third preset temperature threshold. If the conditions are met, the air conditioner is considered to meet the conventional defrosting condition; and if any one of the conditions is not met, the air conditioner is considered not to meet the critical defrosting condition.

For example, the cumulative operation time of the compressor is denoted as T, the first preset time threshold is denoted as T2, the difference between the temperature value of the outdoor heat exchanger and the outdoor ambient temperature is denoted as Δ T, the first preset temperature threshold is denoted as T2, the second preset temperature threshold is denoted as T1, the evaporation temperature of the air conditioner is denoted as Te, and the third preset temperature threshold is denoted as T3. When the air conditioner is determined to be in a heating operation state currently, if the accumulated operation time T of the compressor is determined to be larger than or equal to a first preset time threshold T2, the difference value delta T between the temperature value of the outdoor heat exchanger and the outdoor environment temperature is smaller than a second preset temperature threshold T1, and the evaporation temperature Te of the air conditioner is smaller than a third preset temperature threshold T3, the air conditioner is determined to meet a preset critical defrosting condition; if any of the above conditions is not satisfied, the air conditioner is considered not to satisfy the critical defrosting condition. The frosting condition of the air conditioner is determined by judging whether the air conditioner meets the critical defrosting condition, so that the accuracy of the high-temperature sterilization and defrosting process control of the air conditioner is improved.

Step S3, if the air conditioner does not satisfy the critical defrosting condition, immediately controlling the air conditioner to enter a high-temperature sterilization mode to perform a high-temperature sterilization operation, and synchronously performing a preset first control strategy during the execution of the high-temperature sterilization operation, wherein the first control strategy includes: judging whether the air conditioner meets a preset conventional defrosting condition or not, wherein the conventional defrosting condition comprises the following steps: the accumulated running time of the compressor is greater than or equal to a second preset time threshold, the difference value between the temperature value of the outdoor heat exchanger and the outdoor environment temperature is greater than or equal to a second preset temperature threshold, the evaporation temperature of the air conditioner is smaller than a third preset temperature threshold, and the first preset time threshold is smaller than the second preset time threshold.

In an embodiment, it is determined that the air conditioner does not satisfy the critical defrosting condition, it is determined that the outdoor heat exchanger may not be frosted or frosted very thinly, at this time, the heating capacity of the air conditioner is very strong, and the defrosting operation does not need to be performed, at this time, the air conditioner is immediately controlled to enter a high-temperature sterilization mode to perform a high-temperature sterilization operation, for example, the temperature value Tc of the indoor heat exchanger is controlled within a high-temperature sterilization temperature range to achieve a high-temperature sterilization function of the air conditioner, and the first control strategy is executed during the execution of the high-temperature sterilization operation.

Specifically, during the high-temperature sterilization operation of the air conditioner, the outdoor heat exchanger may gradually change from a condition of no frost formation or a condition of very thin frost formation to a condition of very thick frost formation, and therefore, during the high-temperature sterilization operation of the air conditioner, a first control strategy needs to be synchronously executed to determine the frost formation of the outdoor heat exchanger, for example, during the high-temperature sterilization operation, whether the air conditioner satisfies a preset conventional defrosting condition is continuously determined, for example, whether the accumulated operation time T of the compressor is greater than or equal to a second preset time threshold T1, and whether the difference Δ T between the temperature value of the outdoor heat exchanger and the outdoor environment temperature is greater than or equal to a second preset temperature threshold T1, and whether the evaporation temperature Te of the air conditioner is less than a third preset temperature threshold T3, if the accumulated operation time T of the compressor is greater than or equal to the second preset time threshold T1, the difference delta T between the temperature value of the outdoor heat exchanger and the outdoor environment temperature is larger than or equal to a second preset temperature threshold T1, and the evaporation temperature Te of the air conditioner is smaller than a third preset temperature threshold T3, the air conditioner is considered to meet the conventional defrosting condition; and if any one of the conditions is not met, the air conditioner is considered not to meet the conventional defrosting condition. Whether the air conditioner meets the conventional defrosting condition or not is detected by synchronously executing the preset first control strategy in the process of executing the high-temperature sterilization action, so that the corresponding control strategy is executed when the air conditioner meets the conventional defrosting condition or does not meet the conventional defrosting condition, and the high-temperature sterilization and defrosting process of the air conditioner can be smoothly carried out.

Step S4, if the air conditioner satisfies the normal defrosting condition, controlling the indoor motor to reduce the rotating speed until the air conditioner satisfies the preset high-temperature sterilization quit condition, wherein the high-temperature sterilization quit condition comprises: in the high-temperature sterilization mode, the temperature value of the indoor heat exchanger meets the condition that the accumulated time of the preset sterilization temperature interval reaches a third preset time threshold.

In the embodiment, in the process of performing high-temperature sterilization by the air conditioner, it is continuously determined whether the air conditioner satisfies a conventional defrosting condition, if the conventional defrosting condition is satisfied, the air conditioner is considered to satisfy the conventional defrosting condition, at this time, the indoor motor is controlled to reduce the rotation speed to increase the condensation temperature, so as to slow down the frosting speed of the air conditioner, the first control strategy is stopped to be executed until the air conditioner satisfies the high-temperature sterilization exit condition, for example, it is determined whether the accumulated time when the temperature value Tc of the indoor heat exchanger reaches the sterilization temperature interval reaches a third preset time, which is recorded as t3, and if the third preset time t3 reaches 50 minutes, the air conditioner is considered to satisfy the high-temperature sterilization exit condition, and the first control strategy is stopped to be executed.

If the temperature value Tc of the indoor heat exchanger meets the high-temperature sterilization exit condition, for example, in the high-temperature sterilization mode, the accumulated time of the sterilization temperature interval reaches a third preset time, for example, 50 minutes, and the air conditioner is controlled to exit the high-temperature sterilization mode. It can be understood that when the air conditioner meets the conventional defrosting condition and the high-temperature sterilization action is not completed, in order to slow down the frosting speed, the evaporating temperature and the condensing temperature need to be increased, and the high-temperature sterilization effect of the air conditioner is prevented from being influenced due to the fact that the frosting speed is too high in the high-temperature sterilization process, so that the high-temperature sterilization process of the air conditioner can be smoothly completed. And when the air conditioner performs the high-temperature sterilization action, the priority for performing the high-temperature sterilization action is greater than the priority for performing the defrosting action, so that the defrosting action is not performed even if the air conditioner satisfies the conventional defrosting condition during the high-temperature sterilization process, and the defrosting action is performed after the high-temperature sterilization process is completed. The high-temperature sterilization time of the air conditioner can be ensured, and therefore, the sterilization effect is ensured.

According to the high-temperature sterilization and defrosting control method of the air conditioner, when the air conditioner is in a heating operation state, whether the air conditioner meets a defrosting critical condition is judged, when the air conditioner does not meet the critical defrosting condition, the air conditioner is controlled to immediately enter a high-temperature sterilization mode to execute a high-temperature sterilization action, in the process of executing the high-temperature sterilization action, a first control strategy is synchronously executed, whether the air conditioner meets a conventional defrosting condition is judged, when the air conditioner is determined to meet the conventional defrosting condition, an indoor motor is controlled to reduce the rotating speed so as to slow down the frosting speed, so that the high-temperature sterilization effect cannot be influenced due to the fact that the frosting speed is too high in the high-temperature sterilization process of the air conditioner, and therefore the problems that the high-temperature sterilization time is insufficient and the sterilization effect is influenced due to the fact that the defrosting condition is met in the high-temperature sterilization process of the air conditioner can be avoided, and the high-temperature sterilization is continued after the defrosting is finished, so that the high-temperature sterilization time is prolonged, and the user experience is improved while the sterilization effect is ensured.

In some embodiments, after controlling the indoor motor to reduce the rotation speed, the method further includes: and controlling the gear rotating speed of the outdoor motor to be increased to the highest gear rotating speed of the outdoor motor, or increasing the opening degree of the expansion valve by a preset opening degree, or keeping the running frequency of the compressor unchanged so as to slow down the frosting speed. It can be understood that, when the air conditioner satisfies the conventional defrosting condition, reduce the speed through controlling indoor motor, can play the effect of slowing down the speed of frosting, in order to further slow down speed, make the speed of frosting slower, need be after reducing the gear rotational speed of indoor motor, control outdoor motor, for example, outdoor direct current motor's rotational speed rises to outdoor direct current motor's highest gear rotational speed, in order to improve evaporating temperature, or, the aperture of control expansion valve increases and predetermines the aperture, reduce the throttle, improve evaporating temperature, or, the operating frequency of control compressor keeps unchangeable, with this speed that slows down jointly, make the speed of frosting slower, make the air conditioner at high temperature sterilization's in-process, can not be too fast because of the speed of frosting, and influence high temperature sterilization effect.

In some embodiments, after the air conditioner satisfies the preset high temperature sterilization exit condition, the method further includes: and controlling the air conditioner to execute the defrosting action, and after the defrosting action is finished, controlling the air conditioner to exit the high-temperature sterilization mode.

In the embodiment, the air conditioner satisfies a predetermined high-temperature sterilization exit condition, for example, when the temperature value Tc of the indoor heat exchanger satisfies a predetermined sterilization temperature interval for a third predetermined time, for example, 50 minutes, the air conditioner is considered to satisfy the predetermined high-temperature sterilization exit condition, at this time, the air conditioner is immediately controlled to perform a defrosting operation, and after the defrosting operation is completed, the air conditioner is controlled to exit the high-temperature sterilization mode, it is understood that after it is determined that the air conditioner satisfies the high-temperature sterilization exit condition, the high-temperature sterilization process of the air conditioner is considered to be completed, at this time, the air conditioner is controlled to perform the defrosting operation, it is ensured that the air conditioner does not perform defrosting during the high-temperature sterilization process, and the problem that the time of the whole high-temperature sterilization process is too long and user experience is affected due to the fact that the high-temperature sterilization operation is continuously, therefore, the user experience is improved while the sterilization effect is ensured.

In some embodiments, after determining whether the air conditioner satisfies the preset critical defrosting condition, the method further includes: and if the air conditioner meets the critical defrosting condition, controlling the air conditioner to execute a defrosting action, and after the defrosting action is finished, controlling the air conditioner to enter a high-temperature sterilization mode to execute a high-temperature sterilization action until the air conditioner meets a preset high-temperature sterilization exit condition, and controlling the air conditioner to exit the high-temperature sterilization mode.

In the embodiment, when the air conditioner operates in the heating mode, if the air conditioner meets the critical defrosting condition, the outdoor heat exchanger is considered to be frosted by a certain amount but not full, if the air conditioner continues to operate in the current mode, it may cause the indoor heat exchanger to be frosted during the high temperature sterilization process, thereby affecting the high temperature sterilization effect of the air conditioner, and therefore, when the air conditioner meets the critical defrosting condition, the air conditioner is controlled to execute the defrosting action first to avoid further frosting of the outdoor heat exchanger, and after the defrosting action is finished, the air conditioner is controlled to enter a high-temperature sterilization mode to execute the high-temperature sterilization action, thereby guarantee that the pasteurization process can smooth completion, avoid simultaneously that the frost becomes full can not in time defrost, lead to the air conditioner to frosting too thickly, the unable problem of cleaning completely to, the effect of heating when guaranteeing the air conditioner operation once more and heating after the defrosting finishes.

In some embodiments, controlling the process of reducing the speed of the motor in the chamber comprises: if the current rotating speed of the indoor motor is higher than the lowest gear rotating speed of the indoor motor, controlling the indoor motor to reduce 1 rotating speed gear; and if the current rotating speed of the indoor motor is equal to the lowest gear rotating speed of the indoor motor, controlling the rotating speed of the indoor motor to reduce the preset rotating speed value.

In an embodiment, when the indoor motor is controlled to reduce the rotating speed, if the current rotating speed of the indoor motor is higher than the lowest gear rotating speed of the indoor motor, for example, the current rotating speed of the indoor motor is a medium-gear rotating speed, the indoor motor is controlled to reduce 1 rotating speed gear, that is, the rotating speed is a low-windshield rotating speed; if the current rotating speed of the indoor motor is the lowest gear rotating speed of the indoor motor, for example, the current rotating speed of the indoor motor is the low windshield rotating speed, the rotating speed of the indoor motor is controlled to further reduce the preset rotating speed value on the basis of the current lowest gear, for example, reduce 100rpm, so as to increase the condensation temperature.

In some embodiments, after determining the current operation state of the air conditioner, the method further includes: if the air conditioner is in a standby state, immediately controlling the air conditioner to enter a high-temperature sterilization mode so as to execute a high-temperature sterilization action, and synchronously executing a first control strategy in the process of executing the high-temperature sterilization action.

In the embodiment, after receiving the high-temperature sterilization instruction, when determining that the air conditioner is in the standby state, immediately controlling the air conditioner to enter the high-temperature sterilization mode, executing the high-temperature sterilization action, and synchronously executing the first control strategy during the execution of the high-temperature sterilization action, wherein the first control strategy includes determining whether the air conditioner satisfies the conventional defrosting condition, as described above,

to reduce redundancy, it is not described herein in detail. It should be noted that, in the process of performing high-temperature sterilization, it is determined whether the air conditioner meets the conventional defrosting condition, because it cannot be determined whether the outdoor heat exchanger is frosted before the air conditioner is in the standby state, for example, when a user needs to go out in a hotel, the room is powered off directly, if the room is powered off before the room is powered off, the air conditioner operates in the heating mode, at this time, the outdoor heat exchanger may have a frosting condition, so that the next heating of the air conditioner is affected. Therefore, in the process of starting the high-temperature sterilization operation from the standby state, it is necessary to determine whether the air conditioner satisfies the normal defrosting condition. When the air conditioner is in a standby state, the air conditioner is controlled to enter a high-temperature sterilization mode, whether the air conditioner meets the conventional defrosting condition or not is continuously judged in the process of executing a high-temperature sterilization action by the air conditioner, and the problem that the air conditioner frosts to influence the next heating when entering the high-temperature sterilization mode from the standby state is avoided.

The following description will be given, by way of example, of a method for controlling high-temperature sterilization and defrosting of an air conditioner.

In the following examples, the relevant parameters are set as follows: the second preset time threshold T1 is 60min, the first preset time threshold T2 is 40min, the third preset time threshold T3 is 50min, the second preset temperature threshold T1 is 10 ℃, the first preset temperature threshold T2 is 8 ℃, the third preset temperature threshold T3 is 0 ℃, the preset opening Y is 150 steps, and the rotating speed X of the indoor motor is 100 rpm.

In the first embodiment, after receiving the high-temperature sterilization instruction, the air conditioner determines that the current air conditioner is operating in a heating mode, and first determines whether a critical defrosting condition for high-temperature sterilization is met. At this time, if the operation time of the compressor is 30min and the high-temperature sterilization critical defrosting condition is not satisfied, the air conditioner is controlled to execute the high-temperature sterilization action. During the execution of the high-temperature sterilization action, it is continuously determined whether the air conditioner satisfies a normal defrosting condition. When the running time T of the compressor is 70min and T1, the outdoor heat exchange temperature difference delta T is 11 ℃ and T1, and the evaporation temperature Te is-2 ℃ and T3, the controller controls the indoor motor, the expansion valve, the outdoor motor and the compressor to simultaneously execute the following actions. a. If the rotating speed of the indoor motor is in a stroke state, the gear of the indoor motor is controlled to be lowered to a low wind gear by 1, and if the indoor motor is already in the low wind gear, the rotating speed of the indoor motor is controlled to be lowered by 100rpm on the basis of the rotating speed of the current low wind gear; b. the opening of the electronic expansion valve is kept unchanged after 150 steps are added on the basis of the current opening; c. the rotating speed of the outdoor motor is kept unchanged after the rotating speed is increased from the current gear, such as the gear D10 to the gear D18 with the highest gear; d. the compressor frequency is prohibited from rising. And when the time that the temperature value Tc of the indoor heat exchanger meets the sterilization temperature interval reaches 50min, namely the exit condition of the high-temperature sterilization function is met, controlling the air conditioner to immediately execute defrosting action, and exiting the high-temperature sterilization mode after defrosting is finished.

In the second embodiment, after the air conditioner receives the high-temperature sterilization instruction, it is determined that the current air conditioner is operating in the heating mode, and it is first determined whether the critical defrosting condition for high-temperature sterilization is satisfied. If the operation time of the compressor is 60min, but the delta T is 5 ℃ and less than T2, and the high-temperature sterilization critical defrosting condition is not satisfied, the air conditioner executes the high-temperature sterilization function. During the execution of the high-temperature sterilization, it is continuously judged whether or not the normal defrosting condition is satisfied. During the high-temperature sterilization, when the temperature value Tc of the indoor heat exchanger meets the sterilization temperature interval accumulated time of 50min and meets the exit condition of the high-temperature sterilization function, the conventional defrosting condition is not met all the time, and the high-temperature sterilization mode is exited.

In the third embodiment, after receiving the high-temperature sterilization instruction, the air conditioner determines that the current air conditioner is in the heating mode, and firstly judges whether the critical defrosting condition of high-temperature sterilization is met. If the running time of the compressor is 60min and is more than T2, the outdoor heat exchange temperature difference delta T is 9 ℃ and is more than T2, and the evaporation temperature Te is-5 ℃ and is less than T3, the critical defrosting condition of high-temperature sterilization is met, the air conditioner firstly performs defrosting operation, and after defrosting is completed, the high-temperature sterilization function is performed.

In the fourth embodiment, after the air conditioner receives the high-temperature sterilization instruction, if it is determined that the current air conditioner is in the standby state, the high-temperature sterilization function is directly executed, and whether the conventional defrosting condition is met or not is continuously judged during the high-temperature sterilization.

The method for controlling high-temperature sterilization and defrosting of an air conditioner according to an embodiment of the present invention will be described with reference to fig. 2, which is a flowchart of the method for controlling high-temperature sterilization and defrosting of an air conditioner according to an embodiment of the present invention, as shown in fig. 2.

In step S11, the air conditioner starts a high temperature sterilization mode.

And step S12, judging whether the air conditioner is in a heating operation state currently, if so, executing step S13, and if not, executing step S17.

Step S13, determining whether the air conditioner satisfies a predetermined critical defrosting condition, if yes, performing step S14, and if no, performing step S17.

And step S14, controlling the air conditioner to execute defrosting action.

And step S15, after the defrosting action is finished, controlling the air conditioner to enter a high-temperature sterilization mode.

And step S16, controlling the air conditioner to exit the high-temperature sterilization mode when the air conditioner meets the preset high-temperature sterilization exit condition.

And step S17, controlling the air conditioner to execute the high-temperature sterilization action.

And step S18, judging whether the air conditioner meets the preset conventional defrosting condition, if so, jumping to step S19, and if not, jumping to step S26.

And step S19, controlling the indoor motor to reduce the rotating speed.

And step S20, controlling the rotating speed level of the outdoor motor to be increased to the highest gear rotating speed of the outdoor motor.

In step S21, the opening degree of the expansion valve is controlled to increase by a preset opening degree.

And step S22, controlling the running frequency of the compressor to be kept unchanged.

Step S23, judging whether the air conditioner meets the preset high-temperature sterilization exit condition, if yes, executing step S24; otherwise, go to step S23.

And step S24, controlling the air conditioner to execute defrosting action.

And step S25, controlling the air conditioner to exit the high-temperature sterilization mode.

And step S26, judging whether the air conditioner meets the preset high-temperature sterilization quit condition, if so, executing step S27, otherwise, jumping to step S18.

And step S27, exiting the high-temperature sterilization mode.

According to the high-temperature sterilization and defrosting control method of the air conditioner, when the air conditioner is in a heating operation state, whether the air conditioner meets a defrosting critical condition is judged, when the air conditioner does not meet the critical defrosting condition, the air conditioner is controlled to immediately enter a high-temperature sterilization mode to execute a high-temperature sterilization action, in the process of executing the high-temperature sterilization action, a first control strategy is synchronously executed, whether the air conditioner meets a conventional defrosting condition is judged, when the air conditioner is determined to meet the conventional defrosting condition, an indoor motor is controlled to reduce the rotating speed so as to slow down the frosting speed, so that the high-temperature sterilization effect cannot be influenced due to the fact that the frosting speed is too high in the high-temperature sterilization process of the air conditioner, and therefore the problems that the high-temperature sterilization time is insufficient and the sterilization effect is influenced due to the fact that the defrosting condition is met in the high-temperature sterilization process of the air conditioner can be avoided, and the high-temperature sterilization is continued after the defrosting is finished, so that the high-temperature sterilization time is prolonged, and the user experience is improved while the sterilization effect is ensured.

A high-temperature sterilization and defrosting control apparatus of an air conditioner according to an embodiment of the second aspect of the present invention will be described with reference to fig. 3.

Fig. 3 is a block diagram of a high-temperature sterilization and defrosting control apparatus of an air conditioner according to an embodiment of the present invention. As shown in fig. 3, the high-temperature sterilization and defrosting control device 2 of the air conditioner according to the embodiment of the present invention includes a first determining module 20, a second determining module 21, and a control module 22.

The first judging module 20 is configured to judge a current operating state of the air conditioner after receiving the high-temperature sterilization instruction; the second judging module 21 is configured to judge whether the air conditioner satisfies a preset critical defrosting condition when the air conditioner is currently in a heating operation state, where the critical defrosting condition includes: the accumulated running time of the compressor is greater than or equal to a first preset time threshold, the difference value between the temperature value of the outdoor heat exchanger and the outdoor environment temperature is greater than or equal to a first preset temperature threshold and smaller than a second preset temperature threshold, and the evaporation temperature of the air conditioner is smaller than a third preset temperature threshold; the control module 22 is configured to immediately control the air conditioner to enter a high-temperature sterilization mode when the air conditioner does not satisfy the critical defrosting condition, so as to perform a high-temperature sterilization action, and synchronously perform a preset first control strategy in the process of performing the high-temperature sterilization action, where the first control strategy includes: judging whether the air conditioner meets a preset conventional defrosting condition or not, wherein the conventional defrosting condition comprises the following steps: the accumulated running time of the compressor is greater than or equal to a second preset time threshold, the difference value between the temperature value of the outdoor heat exchanger and the outdoor environment temperature is greater than or equal to a second preset temperature threshold, the evaporation temperature of the air conditioner is smaller than a third preset temperature threshold, and the first preset time threshold is smaller than the second preset time threshold; when the air conditioner satisfies conventional defrosting condition, the indoor motor of control reduces rotational speed, and the condition of withdrawing from that disinfects to satisfy predetermined pasteurization is satisfied up to the air conditioner, and wherein, pasteurization withdraws from the condition and includes: in the high-temperature sterilization mode, the temperature value of the indoor heat exchanger meets the condition that the accumulated time of the preset sterilization temperature interval reaches a third preset time threshold.

According to the high-temperature sterilization and defrosting control device 2 of the air conditioner, when the air conditioner is in a heating operation state, whether the air conditioner meets a defrosting critical condition is judged, when the air conditioner does not meet the critical defrosting condition, the air conditioner is controlled to immediately enter a high-temperature sterilization mode to execute a high-temperature sterilization action, in the process of executing the high-temperature sterilization action, a first control strategy is synchronously executed, whether the air conditioner meets a conventional defrosting condition is judged, when the air conditioner is determined to meet the conventional defrosting condition, an indoor motor is controlled to reduce the rotating speed so as to slow down the frosting speed, so that the high-temperature sterilization effect cannot be influenced due to the overhigh frosting speed in the high-temperature sterilization process of the air conditioner, and therefore the problems that the high-temperature sterilization time is insufficient and the sterilization effect is influenced due to the fact that the defrosting condition is met in the high-temperature sterilization process of the air conditioner can be avoided, and the high-temperature sterilization is continued after the defrosting is finished, so that the high-temperature sterilization time is prolonged, and the user experience is improved while the sterilization effect is ensured.

In some embodiments, the control module 22 is further configured to control the gear rotation speed of the outdoor motor to increase to the highest gear rotation speed of the outdoor motor, or increase the opening degree of the expansion valve by a preset opening degree, or keep the operation frequency of the compressor unchanged, so as to slow down the frosting speed.

In some embodiments, the control module 22 is further configured to control the air conditioner to perform a defrosting operation, and after the defrosting operation is completed, control the air conditioner to exit the high temperature sterilization mode.

In the embodiment, the air conditioner satisfies a predetermined high-temperature sterilization exit condition, for example, when the temperature value Tc of the indoor heat exchanger satisfies a predetermined sterilization temperature interval for a third predetermined time, for example, 50 minutes, the air conditioner is considered to satisfy the predetermined high-temperature sterilization exit condition, at this time, the air conditioner is immediately controlled to perform a defrosting operation, and after the defrosting operation is completed, the air conditioner is controlled to exit the high-temperature sterilization mode, it is understood that after it is determined that the air conditioner satisfies the high-temperature sterilization exit condition, the high-temperature sterilization process of the air conditioner is considered to be completed, at this time, the air conditioner is controlled to perform the defrosting operation, it is ensured that the air conditioner does not perform defrosting during the high-temperature sterilization process, and the problem that the time of the whole high-temperature sterilization process is too long and user experience is affected due to the fact that the high-temperature sterilization operation is continuously performed after the defrosting operation is completed is avoided, therefore, the user experience is improved while the sterilization effect is ensured.

In some embodiments, the control module 22 is further configured to control the air conditioner to perform a defrosting operation when the air conditioner satisfies a critical defrosting condition, and after the defrosting operation is completed, control the air conditioner to enter a high-temperature sterilization mode to perform the high-temperature sterilization operation until the air conditioner satisfies a preset high-temperature sterilization exit condition, and control the air conditioner to exit the high-temperature sterilization mode.

In the embodiment, when the air conditioner operates in the heating mode, if the air conditioner meets the critical defrosting condition, the outdoor heat exchanger is considered to be frosted by a certain amount but not full, if the air conditioner continues to operate in the current mode, it may cause the indoor heat exchanger to be frosted during the high temperature sterilization process, thereby affecting the high temperature sterilization effect of the air conditioner, and therefore, when the air conditioner meets the critical defrosting condition, the air conditioner is controlled to execute the defrosting action first to avoid further frosting of the outdoor heat exchanger, and after the defrosting action is finished, the air conditioner is controlled to enter a high-temperature sterilization mode to execute the high-temperature sterilization action, thereby guarantee that the pasteurization process can smooth completion, avoid simultaneously that the frost becomes full can not in time defrost, lead to the air conditioner to frosting too thickly, the unable problem of cleaning completely to, the effect of heating when guaranteeing the air conditioner operation once more and heating after the defrosting finishes.

In some embodiments, the control module 22 is specifically configured to, when the current rotation speed of the indoor motor is higher than the lowest gear rotation speed of the indoor motor, control the indoor motor to decrease by 1 rotation speed gear; and when the current rotating speed of the indoor motor is equal to the lowest gear rotating speed of the indoor motor, controlling the rotating speed of the indoor motor to reduce the preset rotating speed value.

In an embodiment, when the indoor motor is controlled to reduce the rotating speed, if the current rotating speed of the indoor motor is higher than the lowest gear rotating speed of the indoor motor, for example, the current rotating speed of the indoor motor is a medium-gear rotating speed, the indoor motor is controlled to reduce 1 rotating speed gear, that is, the rotating speed is a low-windshield rotating speed; if the current rotating speed of the indoor motor is the lowest gear rotating speed of the indoor motor, for example, the current rotating speed of the indoor motor is the low windshield rotating speed, the rotating speed of the indoor motor is controlled to further reduce the preset rotating speed value on the basis of the current lowest gear, for example, reduce 100rpm, so as to increase the condensation temperature.

In some embodiments, the control module 22 is further configured to, when the air conditioner is currently in the standby state, immediately control the air conditioner to enter the pasteurization mode to perform the pasteurization action, and synchronously perform the first control strategy during the execution of the pasteurization action.

It should be noted that the specific implementation manner of the high-temperature sterilization and defrosting control device 2 of the air conditioner according to the embodiment of the present invention is similar to the specific implementation manner of the sterilization control method of the air conditioner according to any of the above embodiments of the present invention, and for details, reference is specifically made to the description of the method portion, and in order to reduce redundancy, no further description is given here.

According to the high-temperature sterilization and defrosting control device 2 of the air conditioner, when the air conditioner is in a heating operation state, whether the air conditioner meets a defrosting critical condition is judged, when the air conditioner does not meet the critical defrosting condition, the air conditioner is controlled to immediately enter a high-temperature sterilization mode to execute a high-temperature sterilization action, in the process of executing the high-temperature sterilization action, a first control strategy is synchronously executed, whether the air conditioner meets a conventional defrosting condition is judged, when the air conditioner is determined to meet the conventional defrosting condition, an indoor motor is controlled to reduce the rotating speed so as to slow down the frosting speed, so that the high-temperature sterilization effect cannot be influenced due to the overhigh frosting speed in the high-temperature sterilization process of the air conditioner, and therefore the problems that the high-temperature sterilization time is insufficient and the sterilization effect is influenced due to the fact that the defrosting condition is met in the high-temperature sterilization process of the air conditioner can be avoided, and the high-temperature sterilization is continued after the defrosting is finished, so that the high-temperature sterilization time is prolonged, and the user experience is improved while the sterilization effect is ensured.

An air conditioner according to an embodiment of a third aspect of the present invention is described below, including: the high-temperature sterilization and defrosting control device 2 of the air conditioner according to any of the above embodiments; alternatively, the air conditioner includes: the high-temperature sterilization and defrosting control program of the air conditioner is stored on the memory and can run on the processor, and when being executed by the processor, the high-temperature sterilization and defrosting control program of the air conditioner realizes the high-temperature sterilization and defrosting control method of the air conditioner of any one of the embodiments.

In this embodiment, when the air conditioner performs high-temperature sterilization and defrosting, a specific implementation manner of the air conditioner is similar to that of the high-temperature sterilization and defrosting control device 2 of the air conditioner according to any of the above embodiments of the present invention, and please refer to the description of the high-temperature sterilization and defrosting control device 2 of the air conditioner specifically, and details are not repeated here in order to reduce redundancy.

According to the air conditioner provided by the embodiment of the invention, when the air conditioner is in a heating operation state, whether the air conditioner meets a defrosting critical condition is judged, when the air conditioner does not meet the critical defrosting condition, the air conditioner is controlled to immediately enter a high-temperature sterilization mode to execute a high-temperature sterilization action, a first control strategy is synchronously executed in the process of executing the high-temperature sterilization action, whether the air conditioner meets a conventional defrosting condition is judged, when the air conditioner is determined to meet the conventional defrosting condition, an indoor motor is controlled to reduce the rotating speed so as to slow down the frosting speed, so that the high-temperature sterilization effect cannot be influenced due to the fact that the frosting speed is too high in the high-temperature sterilization process of the air conditioner, the problems that the high-temperature sterilization time is insufficient and the sterilization effect is influenced due to the fact that the defrosting is carried out due to the fact that the defrosting condition is met in the high-temperature sterilization process of the air conditioner can be avoided, and the high-temperature sterilization is continued after the defrosting is finished, the high-temperature sterilization time is prolonged, so that the sterilization effect is ensured, and the user experience is improved.

A computer-readable storage medium according to a fourth embodiment of the present invention is described below, in which a high-temperature sterilization and defrosting control program of an air conditioner is stored, and when executed by a processor, the high-temperature sterilization and defrosting control program of the air conditioner implements the high-temperature sterilization and defrosting control method of the air conditioner according to any one of the above-described embodiments.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.