CN110873395A

CN110873395A - Air conditioner and self-cleaning control method thereof

Info

Publication number: CN110873395A
Application number: CN201811007022.5A
Authority: CN
Inventors: 许文明; 罗荣邦
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd
Priority date: 2018-08-31
Filing date: 2018-08-31
Publication date: 2020-03-10

Abstract

The invention discloses an air conditioner and a self-cleaning control method thereof, and belongs to the technical field of air conditioners. The control method comprises the following steps: determining the accumulated time length of the air conditioner from the previous self-cleaning flow execution to the present; when the accumulated time length meets a preset time length condition, determining the scaling degree of a heat exchanger of the air conditioner; if the scaling degree meets the preset cleaning triggering condition, controlling the air conditioner to execute a high-temperature steam cleaning process and a heating mode aiming at the heat exchanger to be cleaned; and controlling the air conditioner to execute a frost condensation-defrosting cleaning process when the condition that the high-temperature steam cleaning process exits is determined to be met. According to the control method for self-cleaning of the air conditioner, provided by the invention, under the condition that the air conditioner meets a long time condition, the heat exchanger is washed by using the high-temperature steam cleaning process to realize effective separation of the heat exchanger and oil stains, and the control method is used in combination with the condensation-defrosting cleaning process, so that the effect of the air conditioner in removing pollutants with strong adhesive force such as the oil stains is improved, and the self-cleaning efficiency of the air conditioner on pollutants with different properties is ensured.

Description

Air conditioner and self-cleaning control method thereof

Technical Field

The invention relates to the technical field of air conditioners, in particular to an air conditioner and a self-cleaning control method thereof.

Background

When the air conditioner operates in a cooling or heating mode, air in an external environment enters the inside of the machine body along the air inlet, and is blown into the external environment again through the air outlet after heat exchange of the heat exchange plate, in the process, impurities such as dust, large particles and the like mixed in the air can enter the indoor machine along with air inlet flow, although a dustproof filter screen arranged at the air inlet of the air conditioner can filter most of the dust and the particles, a small amount of tiny dust can not be completely blocked and filtered, and the dust can be gradually deposited and attached to the surface of the heat exchange plate along with long-term use of the air conditioner.

Generally, a cleaning method of an air conditioner in the prior art mainly includes two modes of manual cleaning and self cleaning of the air conditioner, wherein the self cleaning mode of the air conditioner is mainly divided into a frost condensation stage and a defrosting stage, wherein, taking an indoor unit of a split air conditioner as an example, in the frost condensation stage, the air conditioner firstly operates in a refrigeration mode, and increases refrigerant output quantity to an indoor heat exchanger, so that moisture in indoor air can be gradually condensed into a frost or ice layer on the outer surface of the heat exchanger, and in the process, the condensed frost layer can be combined with dust, so that the dust is peeled off from the outer surface of the heat exchanger; then, in the defrosting stage, the air conditioner operates in a heating mode to melt the frost layer condensed on the outer surface of the heat exchanger, and dust can be collected into the water receiving tray along with the melted water flow, so that the aim of self-cleaning the indoor unit of the air conditioner can be fulfilled; similarly, when the outdoor unit of the split air conditioner is cleaned, the self-cleaning operation is performed according to a reverse flow to that of the indoor unit, that is, the air conditioner operates the heating mode (the temperature of the outdoor unit is reduced, and the frost is condensed) and then operates the cooling mode (the temperature of the outdoor unit is increased, and the frost is melted).

For the air conditioner applied to some special scenes (such as a kitchen), the pollutants accumulated on the heat exchanger in the long-term use process not only contain dust, but also contain substances with strong adhesive force, such as oil stains, and the like, so that the pollutants on the heat exchanger are difficult to be completely removed only through the self-cleaning process of the condensation-defrosting.

Disclosure of Invention

The invention provides an air conditioner, and aims to solve the problem that pollutants such as oil stains and the like are not easy to remove in the conventional self-cleaning process. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

According to a first aspect of the present invention, there is provided a control method for self-cleaning of an air conditioner, characterized in that the control method comprises:

determining the accumulated time length of the air conditioner from the previous self-cleaning flow execution to the present;

when the accumulated time length meets a preset time length condition, determining the scaling degree of a heat exchanger of the air conditioner;

if the scaling degree meets the preset cleaning triggering condition, controlling the air conditioner to execute a high-temperature steam cleaning process and a heating mode aiming at the heat exchanger to be cleaned;

and controlling the air conditioner to execute a frost condensation-defrosting cleaning process when the condition that the high-temperature steam cleaning process exits is determined to be met.

In an alternative embodiment, determining a degree of fouling of a heat exchanger of an air conditioner includes:

controlling the air conditioner to operate according to preset reference parameters to obtain the current coil temperature of the heat exchanger;

and determining the scaling degree of the heat exchanger of the air conditioner according to the comparison result of the current coil temperature and the preset reference coil temperature.

In an optional embodiment, the air conditioner comprises a heating device arranged at the bottom of the water pan, wherein the heating device is used for heating water accumulated in the water pan to a state of generating high-temperature steam;

controlling an air conditioner to perform a high temperature steam cleaning process, comprising:

detecting the water quantity of the water receiving tray;

if the water quantity meets the preset water quantity condition, controlling to start a heating device at the bottom of the water receiving tray;

if the water quantity does not meet the preset water quantity condition, the heating device at the bottom of the water receiving tray is not controlled to be started; and/or controlling the water supply pipe to replenish water to the water receiving tray.

In an alternative embodiment, determining that the exit condition of the high temperature steam washing process is satisfied includes:

detecting the temperature of the heat exchanger;

and after the temperature of the heat exchanger reaches the set temperature and the set temperature continues for the set time, determining that the exit condition of the high-temperature steam cleaning process is met, and controlling to close the heating device.

In an optional embodiment, the control method further comprises:

and after the heating device is controlled to be closed, controlling the fan to operate at a set wind gear.

According to the second aspect of the present invention, there is also provided an air conditioner comprising a machine body and a controller, wherein the controller is configured to:

In an alternative embodiment, the controller is specifically configured to:

and determining the scaling process of the heat exchanger of the air conditioner according to the comparison result of the current coil temperature and the preset reference coil temperature.

the air conditioner also comprises a water level detector for detecting the water volume of the water pan;

the controller is further configured to: if the water quantity meets the preset water quantity condition, controlling to start a heating device at the bottom of the water receiving tray;

In an optional embodiment, the air conditioner further comprises a temperature sensor for detecting the temperature of the heat exchanger;

the controller is further configured to: and after the temperature of the heat exchanger reaches the set temperature and the set temperature continues for the set time, determining that the exit condition of the high-temperature steam cleaning process is met, and controlling to close the heating device.

In an alternative embodiment, the controller is further configured to:

The invention adopts the technical scheme and has the beneficial effects that:

according to the control method for self-cleaning of the air conditioner, provided by the invention, under the condition that the air conditioner meets a long time condition, the heat exchanger is washed by using the high-temperature steam cleaning process to realize effective separation of the heat exchanger and oil stains, and the control method is used in combination with the condensation-defrosting cleaning process, so that the effect of the air conditioner in removing pollutants with strong adhesive force such as the oil stains is improved, and the self-cleaning efficiency of the air conditioner on pollutants with different properties is effectively ensured.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

Fig. 1 is a schematic structural view of an air conditioner of the present invention according to an exemplary embodiment;

FIG. 2 is a first flowchart illustrating a self-cleaning control method of an air conditioner according to an exemplary embodiment of the present invention;

FIG. 3 is a second flowchart illustrating a self-cleaning control method of an air conditioner according to another exemplary embodiment of the present invention;

fig. 4 is a third flowchart illustrating a control method of self-cleaning of an air conditioner according to another exemplary embodiment of the present invention;

fig. 5 is a fourth flowchart illustrating a control method of self-cleaning of an air conditioner according to another exemplary embodiment of the present invention;

FIG. 6 is a fifth flowchart illustrating a control method for self-cleaning of an air conditioner according to another exemplary embodiment of the present invention;

fig. 7 is a sixth flowchart illustrating a control method of self-cleaning of an air conditioner according to another exemplary embodiment of the present invention;

fig. 8 is a seventh flowchart illustrating a control method of self-cleaning of an air conditioner according to still another exemplary embodiment of the present invention.

Wherein, 1, indoor heat exchanger; 2. a water pan; 3. a heating device.

Detailed Description

The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. As for the methods, products and the like disclosed by the embodiments, the description is simple because the methods correspond to the method parts disclosed by the embodiments, and the related parts can be referred to the method parts for description.

Fig. 1 is a schematic structural view of an air conditioner of the present invention according to an exemplary embodiment. Specifically, fig. 1 shows an internal structure of an indoor unit of an air conditioner.

The air conditioner comprises an indoor heat exchanger 1, an outdoor heat exchanger, a throttling device and a compressor, wherein the indoor heat exchanger 1, the outdoor heat exchanger, the throttling device and the compressor are connected through refrigerant pipelines to form a refrigerant circulation loop, and refrigerant flows along the flow direction set by different operation modes through the refrigerant circulation loop, so that the functions of heating, refrigerating, self-cleaning and the like are realized.

In an embodiment, the operation modes of the air conditioner comprise a refrigeration mode, a heating mode and a self-cleaning mode, wherein the refrigeration mode is generally applied to a high-temperature working condition in summer and used for reducing the indoor environment temperature; the heating mode is generally applied to the low-temperature working condition in winter and is used for increasing the indoor environment temperature; the self-cleaning mode is generally a user's self-selection function mode or self-starting function, and can automatically clean the heat exchanger under the condition that dust and dirt are accumulated on the heat exchanger.

When the air conditioner operates in a refrigeration mode, the set refrigerant flow direction is that high-temperature refrigerant discharged by the compressor firstly flows through the outdoor heat exchanger to exchange heat with the outdoor environment, then flows into the indoor heat exchanger 1 to exchange heat with the indoor environment, and finally the refrigerant flows back to the compressor to be compressed again; in the process, the refrigerant flowing through the outdoor heat exchanger emits heat to the outdoor environment, the refrigerant flowing through the indoor heat exchanger 1 absorbs heat from the indoor environment, and the indoor heat can be continuously discharged to the outdoor environment through the circulating flow of the refrigerant in the refrigerant circulating loop, so that the refrigeration purpose of reducing the temperature of the indoor environment can be achieved.

The set refrigerant flow direction during the heating mode refers to that the high-temperature refrigerant discharged by the compressor firstly flows through the indoor heat exchanger 1 to exchange heat with the outdoor environment, then flows into the outdoor heat exchanger to exchange heat with the indoor environment, and finally flows back to the compressor to be compressed again; in the process, the refrigerant flowing through the indoor heat exchanger 1 emits heat to the indoor environment, the refrigerant flowing through the outdoor heat exchanger absorbs heat from the outdoor environment, and the outdoor heat can be continuously released to the indoor environment through the circulating flow of the refrigerant in the refrigerant circulating loop, so that the heating purpose of improving the temperature of the indoor environment can be achieved.

Generally, since the indoor heat exchanger 1 is a heat exchanger directly used for changing an indoor temperature environment, the degree of cleanliness of the indoor heat exchanger 1 may directly affect the user experience. Therefore, the main application of the self-cleaning mode of the air conditioner of the present invention is the indoor heat exchanger 1. Of course, the self-cleaning mode of the air conditioner of the present invention may also be used to clean the outdoor heat exchanger, so in a specific embodiment, when the air conditioner of the present invention performs a cleaning process, only one of the indoor heat exchanger 1 and the outdoor heat exchanger may be cleaned, or both of the two heat exchangers may be cleaned. It should be understood that if the existing air conditioner uses the same or similar control method as the present invention to perform the self-cleaning operation of the indoor and outdoor heat exchangers, it should be also included in the protection scope of the present invention.

Taking the self-cleaning process of the indoor heat exchanger 1 as an example, the self-cleaning mode of the air conditioner operation comprises one or more self-cleaning processes; optionally, the self-cleaning process includes, but is not limited to, a high-temperature steam cleaning process and a defrosting process.

For the high temperature steam cleaning process, in an alternative embodiment, the indoor heat exchanger 1 is a heat exchanger to be cleaned, where the indoor unit is provided with a high temperature steam device, the high temperature steam device includes a steam generator and a water storage device, wherein the steam generator is used for generating high temperature steam, and a steam injection port of the steam generator faces the indoor heat exchanger 1, so that the high temperature steam generated by the steam generator can be injected to the heat exchanger; the water storage device is used for storing water required by the steam generator for generating high-temperature steam; here, after the high-temperature steam is sprayed to the indoor heat exchanger 1, contaminants such as dust and oil stains adhered to the outer surface of the indoor heat exchanger 1 may be washed away and separated from the outer surface of the indoor heat exchanger 1.

Or, in a further alternative embodiment, the body of the air conditioner includes a water pan 2 disposed below the indoor heat exchanger 1; the bottom of the water pan 2 is provided with a heating device 3 for heating the water accumulated in the water pan 2 to a state of generating high-temperature steam. After the heating device 3 is started, the temperature of the water accumulated in the water receiving tray 2 is gradually increased and finally becomes a boiling state, and the accumulated water is partially changed into gaseous steam; here, because the water pan 2 is located below the indoor heat exchanger 1 and the density of the high-temperature steam is small, the high-temperature steam can rise and diffuse into the gaps of the heat exchange fins of the indoor heat exchanger 1, so that the oil stain is heated and expanded and separated from the indoor heat exchanger 1; thus, the air conditioning structure design of the embodiment can also play a role in high-temperature steam cleaning.

Optionally, the water pan 2 is made of heat conducting materials, so that heat of the heating device 3 is conveniently transferred among all parts of the water pan 2, and water accumulated in the water pan 2 can be uniformly heated; and meanwhile, the problem of local overheating can be avoided.

Optionally, the heating device 3 of the present invention is an electric heating device 3, and in order to avoid the problem of electric leakage, a part of the water pan 2, which is in thermal contact with the heating device 3, is made of an insulating material or is provided with an insulating coating.

Optionally, the surface of the water pan 2 is heat-resistant treated to ensure the service life thereof in the long-term heating process.

For the flow of frost formation and defrosting, the indoor heat exchanger 1 is also taken as an example, and the working flow mainly comprises two stages which are sequentially carried out: the defrosting process comprises an indoor heat exchanger defrosting stage defined by a defrosting process and an indoor heat exchanger defrosting stage modern by a defrosting process. In the frost condensation stage of the indoor heat exchanger, ice can be condensed and frosted on the indoor heat exchanger 1 of the indoor unit; in the defrosting stage of the indoor heat exchanger, the condensed frost of the indoor heat exchanger 1 in the previous defrosting stage is melted, impurities such as dust and the like can be separated from the indoor heat exchanger 1 along with the melted condensed water, and the cleaning treatment of the indoor heat exchanger 1 is completed.

Specifically, in the operation process of the air conditioner in the cooling mode, if the power of the compressor is increased and the output quantity of the refrigerant is increased, the quantity of the low-temperature refrigerant input into the indoor unit can be increased, the internal temperature of the indoor unit can be reduced by the redundant refrigerant cold quantity, and when the internal temperature of the indoor unit is lower than the frost condensation critical temperature value (such as 0 ℃), the water vapor in the air flowing through the indoor unit can be gradually condensed into frost in the indoor unit, so that the control method of the invention realizes the operation of the frost condensation and the frost formation of the ice of the indoor heat exchanger 1 by adjusting the operation parameters of the compressor, the fan, the throttling device and other components under the condition that the air conditioner is controlled to flow in the refrigerant flow direction limited by the cooling mode in the frost formation.

In the heating mode operation process of the air conditioner, the high-temperature refrigerant firstly flows through the indoor heat exchanger 1, so that the cold energy of the high-temperature refrigerant can increase the internal temperature of the indoor unit, and when the internal temperature of the indoor unit is higher than the frost condensation critical temperature value (such as 0 ℃), frost condensed in the indoor unit can be gradually melted and dripped, so that the frost can be separated from the indoor heat exchanger 1. The control method of the invention is that under the condition that the flow direction of the refrigerant limited by the heating mode of the air conditioner is controlled at the defrosting stage of the indoor heat exchanger, the defrosting operation of the indoor heat exchanger 1 is realized by adjusting the operation parameters of components such as a compressor, a fan, a throttling device and the like.

Similarly, when the outdoor heat exchanger is self-cleaned, when the air conditioner flows in the refrigerant flow direction defined by the heating mode, the refrigerant flowing out of the indoor heat exchanger 1 is a medium-temperature refrigerant and the refrigerant flowing into the outdoor heat exchanger after being throttled by the throttling device is a low-temperature refrigerant, so that the low-temperature refrigerant can reduce the temperature of the outdoor heat exchanger, and when the temperature inside the outdoor unit is lower than the frost condensation critical temperature value (such as 0 ℃), water vapor in the air flowing through the outdoor unit is gradually condensed into frost inside the outdoor unit. Thus, the ice and the frost of the outdoor heat exchanger are realized while the ice and the frost of the indoor heat exchanger 1 are melted.

Then, the indoor heat exchanger 1 finishes melting ice and defrosting in the defrosting stage of the indoor heat exchanger, self-cleaning of the indoor heat exchanger 1 is finished, the air conditioner enters the defrosting stage of the outdoor heat exchanger, at the moment, the air conditioner is controlled to flow in the direction of the refrigerant flow defined by the refrigeration mode again, the flow direction of the high-temperature refrigerant discharged by the compressor is changed, the high-temperature refrigerant flows through the outdoor heat exchanger, and therefore the heat of the high-temperature refrigerant can be used for melting ice and defrosting of the outdoor heat exchanger, and the self-cleaning process of the outdoor heat exchanger is finished.

In the self-cleaning process, each stage can be performed according to a preset time length, for example, the defrosting stage of the indoor heat exchanger can be preset to 10min, and the defrosting stage of the indoor heat exchanger can be preset to 12min, so that the air conditioner can start timing after the air conditioner enters the defrosting stage of the indoor heat exchanger in the self-cleaning mode, when the time reaches 10min, the air conditioner enters the defrosting stage of the indoor heat exchanger, the defrosting stage of the indoor heat exchanger lasts for 12min, it can be determined that the self-cleaning of the indoor unit is finished, and the air conditioner exits the self-cleaning mode.

In the process that the air conditioner is switched to the flow direction limited by the cooling mode or the heating mode, the opening/closing and the rotating speed of the fans of the indoor unit and the outdoor unit also need to be correspondingly controlled, for example, the indoor fan in the frost condensation stage of the indoor heat exchanger is generally closed or operated at a low speed, and the outdoor fan is opened for operation; and in the defrosting stage of the indoor heat exchanger, the indoor fan is started to operate, and outdoor air is closed or operated at a low speed. Therefore, the indoor unit and the outdoor unit are respectively timed in the self-cleaning process, and when the preset time is reached, the components such as a fan of the air conditioner and the like are controlled to carry out corresponding state switching.

Therefore, the invention provides one or more air conditioners and a self-cleaning control method thereof, aiming at solving the technical problem that pollutants such as oil stains with strong adhesive force are not easy to remove.

Fig. 2 is a first flowchart illustrating a control method for self-cleaning of an air conditioner according to an exemplary embodiment of the present invention.

As shown in fig. 2, the present invention provides a control method for self-cleaning of an air conditioner, which mainly comprises the following steps:

s201, determining the accumulated time length of the air conditioner from the previous self-cleaning process execution to the present;

optionally, the air conditioner is provided with a timing module, and the timing module is configured to start timing after the air conditioner completes a single self-cleaning process; step S201 of the invention is to obtain the timing duration of the timing module and use the timing duration as the accumulated duration;

in the present embodiment, the self-cleaning process includes, but is not limited to, a high-temperature steam cleaning process or a defrosting process.

And S202, controlling the air conditioner to execute a high-temperature steam cleaning process when the accumulated time meets a preset time condition.

In this embodiment, the air conditioner is preset with a duration condition, and when the accumulated duration meets the preset duration condition, it can be determined that the accumulated pollutants on the air conditioner are more, and the air conditioner is required to execute a high-temperature steam cleaning process to clean the air conditioner, so as to ensure the cleanliness of the air conditioner.

Here, the preset information such as the duration condition may be pre-stored in components such as an electric control board and an MCU of the air conditioner.

Here, since there are differences in the areas where different users are located and the environments in which their air conditioners are used, there are also differences in the components and the amounts of accumulation of contaminants such as oil stains attached to the heat exchangers; therefore, in order to improve the cleaning effect of the self-cleaning process, the incidence relation between various different time length conditions and different factors such as the area where the user is located and the use environment of the air conditioner can be established in the modes of big data acquisition, collection and classification, and the like, for example, the time length condition of the user in the south China can be set as A through user data analysis; the time length condition of the user in east China is set as B through the same user data analysis mode, and the like. Therefore, after the air conditioner is installed in the home of the user, the air conditioner can acquire the area where the air conditioner is located through modes of networking query, manual input of the user and the like, and further the applicable duration condition of the air conditioner can be determined according to the association relation.

For another example, the time length condition corresponding to the air conditioner installed in the bedroom may be set to C, the time length condition corresponding to the air conditioner installed in the kitchen may be set to D, and the like through user data analysis. Thus, after the using environment (bedroom, kitchen, etc.) where the air conditioner is located is determined, the time length condition of the pollutant corresponding to the air conditioner in the using environment can be further determined.

Or, the parameter information, the association relationship, and the like of the embodiments are pre-stored in a network server that is configured by an air conditioner manufacturer as a user, and the air conditioner of the user can communicate with the network server through a data channel such as a wifi network of a home, so that the air conditioner can also send a query instruction and the like to the network server, where the instruction carries an identifier such as an area where the air conditioner is located or a use environment, and the network server responds to the query instruction, calls a corresponding duration condition according to the identifier carried by the query instruction, and feeds the duration condition back to the air conditioner of the user, so that the air conditioner can determine the duration condition adapted to the current working condition, and perform the determination process in step S202 by using the duration condition.

According to the control method for self-cleaning of the air conditioner, provided by the invention, under the condition that the air conditioner meets the long time condition, the heat exchanger is washed by using the high-temperature steam cleaning process to realize effective separation of the heat exchanger and oil stains, the effect of the air conditioner in removing pollutants with strong adhesive force such as the oil stains is improved, and the self-cleaning efficiency of the air conditioner on pollutants with different properties is effectively ensured.

Optionally, in step S202, the present invention controls the air conditioner to execute the high-temperature steam cleaning process, including: the heating device at the bottom of the water receiving tray is controlled to be started.

Or, in step S202, the present invention controls the air conditioner to execute the high temperature steam cleaning process, including: and controlling to start the high-temperature steam device.

Optionally, the device for generating steam, which is turned on to perform the high-temperature steam washing process in step S202, may be determined according to a time duration condition; for example, in the case that the duration condition in step S202 is associated with the usage environment of the air conditioner, when the usage environment is a kitchen or other oil-polluted scene, the high-temperature steam device may be selected to perform steam cleaning on the indoor heat exchanger in step S202; and when the use environment is a scene with more oil stains such as a bedroom, the heating device can be selected to be started in the step S202, and here, compared with the high-temperature steam device, the mode that the heating device generates high-temperature steam is softer in steam airflow and lower in noise, so that the method is suitable for the scene with low demand noise, and the uncomfortable influence of the air conditioner on a user due to the fact that the air conditioner executes a high-temperature steam cleaning process is reduced.

Optionally, before the heating device of water collector bottom is opened in the control, control air conditioner execution high temperature steam washs the flow, still includes: detecting the water quantity of the water receiving tray; if the water quantity meets the preset water quantity condition, controlling to start a heating device at the bottom of the water receiving tray; if the water quantity does not meet the preset water quantity condition, the heating device at the bottom of the water receiving tray is not controlled to be started; and/or controlling the water supply pipe to replenish water to the water receiving tray.

Here, the source of the water using the heating device to generate the high-temperature steam is the water accumulated in the water receiving tray; when the water in the water receiving tray is insufficient, if the heating device still runs, the problem of dry burning of the water receiving tray can be caused, and the problems of fire and the like can be easily caused; therefore, before the heating device at the bottom of the water pan is controlled to be started, the water quantity of the water pan is detected, and the heating device at the bottom of the water pan is controlled to be started only under the condition that the water quantity meets the preset water quantity condition, so that the safety of the air conditioner for executing a high-temperature steam cleaning process is ensured.

In this embodiment, the air conditioner is further provided with a water supply pipeline, a water inlet end of the water supply pipeline can be connected to a water delivery pipeline of a user family, and a water outlet end of the water supply pipeline is connected to the water pan; the control valve that can be used to control the on-off state of supply channel is provided with on the supply channel, like this, when needs carry out the moisturizing to the water collector, then can control and open the control valve to reach the purpose that utilizes the supply channel to carry out the moisturizing to the water collector.

Optionally, the controlling the air conditioner to execute the high-temperature steam washing process in step S202 further includes: detecting the temperature of the heat exchanger; and after the temperature of the heat exchanger reaches the set temperature and the set temperature lasts for the set time, controlling to turn off the heating device.

Here, the indoor unit of the air conditioner is provided with a temperature sensor, which can be used to detect the temperature of the heat exchanger; therefore, in step S202, the temperature sensor detects the temperature of the heat exchanger.

Optionally, the set time duration is 10 min.

Optionally, the step S202 of controlling the air conditioner to execute the high-temperature steam cleaning process further includes: and after the heating device is controlled to be closed, controlling the fan to operate at a set wind gear. Optionally, the set wind gear is a high wind gear.

After the heating device is controlled to be closed, the air conditioner runs at a set wind gear, and the stripped pollutants on the heat exchanger can be blown off by using wind power generated by running of the fan, so that the pollutants and the heat exchanger are thoroughly separated, and the cleanliness of the heat exchanger is ensured.

Fig. 3 is a second flowchart illustrating a self-cleaning control method of an air conditioner according to another exemplary embodiment of the present invention.

As shown in fig. 3, the present invention provides another control method for self-cleaning of an air conditioner, which mainly comprises the following steps:

s301, determining the accumulated time length of the air conditioner from the previous self-cleaning process execution to the present;

in this embodiment, the specific implementation manner of step S301 may refer to step S201 in the foregoing, which is not described herein again.

S302, when the accumulated time length meets a preset time length condition, determining the scaling degree of a heat exchanger of the air conditioner;

Or, the parameter information, the association relationship, and the like of the embodiments are pre-stored in a network server that is configured by an air conditioner manufacturer as a user, and the air conditioner of the user can communicate with the network server through a data channel such as a wifi network of a home, so that the air conditioner can also send a query instruction and the like to the network server, where the instruction carries an identifier such as an area where the air conditioner is located or a use environment, and the network server responds to the query instruction, calls a corresponding duration condition according to the identifier carried by the query instruction, and feeds the duration condition back to the air conditioner of the user, so that the air conditioner can determine the duration condition adapted to the current working condition, and perform the determination process in step S302 by using the duration condition.

Optionally, the determining the degree of fouling of the heat exchanger of the air conditioner in step S302 includes: controlling the air conditioner to operate according to preset reference parameters to obtain the current coil temperature of the heat exchanger; and determining the scaling degree of the heat exchanger of the air conditioner according to the comparison result of the current coil temperature and the preset reference coil temperature.

Before the air conditioner leaves a factory, the temperature of the coil pipe when the air conditioner runs with preset reference parameters can be measured in modes of experiments and the like and is used as the reference coil pipe temperature; at the moment, no pollutant is attached to the air conditioner, so that the temperature of the reference coil can be used for representing parameters of the heat exchanger in a pollutant-free state; because the pollutant attached to the air conditioner can influence the heat exchange efficiency of the heat exchanger, the pollutant can also influence the temperature of the coil, and the temperature of the coil measured on the heat exchanger attached with the pollutant is different from the temperature of a reference coil measured on the heat exchanger not attached with the pollutant in value, so that the scaling degree of the heat exchanger of the air conditioner is determined according to the comparison result of the current temperature of the coil and the preset temperature of the reference coil.

In this embodiment, the more contaminants are attached to the heat exchanger, the greater the temperature difference between the current coil temperature and the reference coil temperature is; the fewer pollutants are attached to the heat exchanger, the smaller the temperature difference between the current coil temperature and the reference coil temperature is; namely the two are in positive correlation; therefore, the air conditioner can preset the correlation between the comparison result of the current coil temperature and the preset reference coil temperature and the scaling degree of the heat exchanger; therefore, after the current coil temperature of the heat exchanger is obtained, the scaling degree of the heat exchanger of the air conditioner can be determined according to the reference coil temperature and the preset incidence relation.

And S303, if the scaling degree meets a preset cleaning triggering condition, controlling the air conditioner to execute a high-temperature steam cleaning process.

According to the control method for self-cleaning of the air conditioner, whether the heat exchanger is washed by the high-temperature steam cleaning process or not is judged according to the scaling degree under the condition that the air conditioner meets the long-time condition, so that the heat exchanger and oil stains are effectively separated through the more effective high-temperature steam cleaning process, the effect of the air conditioner in removing pollutants with strong adhesive force such as the oil stains is improved, and the self-cleaning efficiency of the air conditioner on pollutants with different properties is effectively ensured.

Optionally, in step S302, the present invention controls the air conditioner to execute the high-temperature steam cleaning process, including: the heating device at the bottom of the water receiving tray is controlled to be started.

Or, in step S302, the present invention controls the air conditioner to execute the high temperature steam cleaning process, including: and controlling to start the high-temperature steam device.

Optionally, the device for generating steam, which is turned on when the high-temperature steam cleaning process is performed in step S302, may be determined according to a time duration condition; for example, in the case that the duration condition in step S302 is associated with the usage environment of the air conditioner, when the usage environment is a kitchen or other oil-polluted scene, the high-temperature steam device may be selected to perform steam cleaning on the indoor heat exchanger in step S302; and when the use environment is a scene with more oil stains such as a bedroom, the heating device can be selected to be started in the step S302, and here, compared with the high-temperature steam device, the mode that the heating device generates high-temperature steam is softer in steam airflow and lower in noise, so that the method is suitable for the scene with low demand noise, and the uncomfortable influence of the air conditioner on the user caused by the execution of the high-temperature steam cleaning process is reduced.

Optionally, the controlling the air conditioner to execute the high-temperature steam cleaning process in step S302 further includes: detecting the temperature of the heat exchanger; and after the temperature of the heat exchanger reaches the set temperature and the set temperature lasts for the set time, controlling to turn off the heating device.

Here, the indoor unit of the air conditioner is provided with a temperature sensor, which can be used to detect the temperature of the heat exchanger; therefore, in step S302, the temperature sensor detects the temperature of the heat exchanger.

Optionally, the set time duration is 10 min.

Optionally, the step S302 of controlling the air conditioner to execute the high-temperature steam cleaning process further includes: and after the heating device is controlled to be closed, controlling the fan to operate at a set wind gear. Optionally, the set wind gear is a high wind gear.

Fig. 4 is a third flowchart illustrating a control method for self-cleaning of an air conditioner according to another exemplary embodiment of the present invention.

As shown in fig. 4, the present invention provides another control method for self-cleaning of an air conditioner, which mainly comprises the following steps:

s401, determining the concentration of bacteria breeding of a heat exchanger to be cleaned of the air conditioner;

in the embodiment, the air conditioner is provided with a breeding bacterium detection device which can be used for detecting breeding bacterium concentration and other parameter information on the heat exchanger to be cleaned; therefore, in step S401, the breeding bacteria concentration of the heat exchanger to be cleaned is detected and determined by the breeding bacteria detection device;

here, the types of the breeding bacteria include, but are not limited to: bacteria and fungi, and the like.

S402, when the concentration of the breeding bacteria meets a preset concentration condition, controlling the air conditioner to execute a high-temperature steam cleaning process.

For example, the concentration of the breeding bacteria determined in step S401 is N, and the preset concentration condition is N > 1.2Ne, where Ne is a preset standard concentration value; therefore, when the concentration N of the breeding bacteria meets the condition that N is greater than 1.2Ne, the air conditioner can be controlled to execute the high-temperature steam cleaning process.

Here, the information such as the preset concentration condition may be pre-stored in components such as an electric control board and an MCU of the air conditioner.

According to the control method for self-cleaning of the air conditioner, provided by the invention, under the condition that the air conditioner meets the concentration condition of breeding bacteria, the heat exchanger is washed by using the high-temperature steam cleaning process to realize effective separation of the heat exchanger and oil stains, the effect of the air conditioner in removing pollutants with strong adhesive force such as the oil stains is improved, and the self-cleaning efficiency of the air conditioner on pollutants with different properties is effectively ensured.

Optionally, in step S402, the present invention controls the air conditioner to execute the high-temperature steam cleaning process, including: the heating device at the bottom of the water receiving tray is controlled to be started.

Or, in step S402, the present invention controls the air conditioner to execute the high temperature steam cleaning process, including: and controlling to start the high-temperature steam device.

Optionally, the device for generating steam, which is turned on to perform the high-temperature steam washing process in step S402, may be determined according to a time duration condition; for example, in the case that the duration condition in step S402 is associated with the usage environment of the air conditioner, when the usage environment is a kitchen or other oil-polluted scene, the high-temperature steam device may be selected to perform steam cleaning on the indoor heat exchanger in step S402; and when the use environment is a scene with more oil stains such as a bedroom, the heating device can be selected to be started in the step S402, and compared with the high-temperature steam device, the mode that the heating device generates high-temperature steam is softer in steam airflow and lower in noise, so that the air conditioner is suitable for the scene with low demand noise, and the uncomfortable influence of the air conditioner on a user due to the fact that the air conditioner executes a high-temperature steam cleaning process is reduced.

Optionally, the controlling the air conditioner to execute the high-temperature steam cleaning process in step S402 further includes: detecting the temperature of the heat exchanger; and after the temperature of the heat exchanger reaches the set temperature and the set temperature lasts for the set time, controlling to turn off the heating device.

Here, the indoor unit of the air conditioner is provided with a temperature sensor, which can be used to detect the temperature of the heat exchanger; therefore, in step S402, the temperature sensor detects the temperature of the heat exchanger.

Optionally, the set time duration is 10 min.

Optionally, the step S402 of controlling the air conditioner to execute the high-temperature steam cleaning process further includes: and after the heating device is controlled to be closed, controlling the fan to operate at a set wind gear. Optionally, the set wind gear is a high wind gear.

Fig. 5 is a fourth flowchart illustrating a control method of self-cleaning of an air conditioner according to another exemplary embodiment of the present invention.

As shown in fig. 5, the present invention provides another control method for self-cleaning of an air conditioner, which mainly comprises the following steps:

s501, determining the accumulated time length of the air conditioner from the previous self-cleaning process execution to the present;

in this embodiment, the specific implementation manner of step S501 may refer to step S201 in the foregoing, which is not described herein again.

S502, when the accumulated time length meets a preset time length condition, determining the scaling degree of a heat exchanger of the air conditioner;

in this embodiment, the specific implementation manner of step S502 may refer to step S302 in the foregoing, which is not described herein again.

S503, if the scaling degree meets the preset cleaning triggering condition, controlling the air conditioner to execute a high-temperature steam cleaning process and a heating mode aiming at the heat exchanger to be cleaned.

Here, in the step S503, when the degree of scaling satisfies the preset cleaning triggering condition, the air conditioner is controlled to execute a heating mode for the heat exchanger to be cleaned in addition to the high-temperature steam cleaning process, and at this time, a high-temperature refrigerant flows into the heat exchanger to be cleaned, so that the temperature rise of the heat exchanger to be cleaned can be accelerated, oil stains and the like can be rapidly expanded to separate from the heat exchanger, and the cleaning of the high-temperature steam is facilitated; meanwhile, the temperature of the heat exchanger to be cleaned can be raised to play a certain sterilization role, the number of bacteria breeding on the cleaned air-conditioning heat exchanger is reduced, and the health of an air-conditioning user is benefited.

The control method for self-cleaning of the air conditioner provided by the invention can be used for flushing the heat exchanger by utilizing a high-temperature steam cleaning process according to the accumulated time and the scaling degree of the air conditioner, so that the effective separation of the heat exchanger and oil stains is realized, the effect of the air conditioner in removing pollutants with strong adhesive force such as the oil stains is improved, and the self-cleaning efficiency of the air conditioner on pollutants with different properties is effectively ensured.

Optionally, in step S503, the present invention controls the air conditioner to execute the high-temperature steam cleaning process, including: the heating device at the bottom of the water receiving tray is controlled to be started.

Or, in step S503, the present invention controls the air conditioner to execute the high temperature steam cleaning process, including: and controlling to start the high-temperature steam device.

Optionally, the device for generating steam, which is turned on to perform the high-temperature steam cleaning process in step S503, may be determined according to a time duration condition; for example, when the duration condition in step S503 is associated with the usage environment of the air conditioner, and the usage environment is a kitchen or other oil-polluted scene, the high-temperature steam device may be selected to perform steam cleaning on the indoor heat exchanger in step S503; and when the use environment is a scene with more oil stains such as a bedroom, the heating device can be selected to be started in the step S503, and here, compared with the high-temperature steam device, the mode that the heating device generates high-temperature steam is softer in steam airflow and lower in noise, so that the method is suitable for the scene with low demand noise, and the uncomfortable influence of the air conditioner on the user caused by the execution of the high-temperature steam cleaning process is reduced.

Optionally, the controlling the air conditioner to execute the high-temperature steam cleaning process in step S503 further includes: detecting the temperature of the heat exchanger; and after the temperature of the heat exchanger reaches the set temperature and the set temperature lasts for the set time, controlling to turn off the heating device.

Here, the indoor unit of the air conditioner is provided with a temperature sensor, which can be used to detect the temperature of the heat exchanger; therefore, in step S503, the temperature sensor detects the temperature of the heat exchanger.

Optionally, the set time duration is 10 min.

Optionally, the step S503 of controlling the air conditioner to execute the high-temperature steam cleaning process further includes: and after the heating device is controlled to be closed, controlling the fan to operate at a set wind gear. Optionally, the set wind gear is a high wind gear.

Fig. 6 is a flowchart illustrating a control method of self-cleaning of an air conditioner according to another exemplary embodiment of the present invention.

As shown in fig. 6, the present invention provides another control method for self-cleaning of an air conditioner, which mainly comprises the following steps:

s601, determining the accumulated time length of the air conditioner from the previous self-cleaning process execution to the present;

in this embodiment, the specific implementation manner of step S601 may refer to step S201 in the foregoing, which is not described herein again.

S602, when the accumulated time length meets a preset time length condition, controlling an air conditioner to execute a high-temperature steam cleaning process;

Or, the parameter information, the association relationship, and the like of the embodiments are pre-stored in a network server that is configured by an air conditioner manufacturer as a user, and the air conditioner of the user can communicate with the network server through a data channel such as a wifi network of a home, so that the air conditioner can also send a query instruction and the like to the network server, where the instruction carries an identifier such as an area where the air conditioner is located or a use environment, and the network server responds to the query instruction, calls a corresponding duration condition according to the identifier carried by the query instruction, and feeds the duration condition back to the air conditioner of the user, so that the air conditioner can determine the duration condition adapted to the current working condition, and perform the determination process in step S602 by using the duration condition.

Optionally, in step S602, the present invention controls the air conditioner to execute the high-temperature steam cleaning process, including: the heating device at the bottom of the water receiving tray is controlled to be started.

After the heating device at the bottom of the water pan is controlled to be started, the heating device gradually increases the output power of the heating device from the initially set power, the increase of the output power can accelerate the speed of generating steam, and the overall duration of the high-temperature steam cleaning process is further shortened.

Or, in step S602, the present invention controls the air conditioner to execute the high temperature steam cleaning process, including: and controlling to start the high-temperature steam device.

Optionally, the device for generating steam, which is turned on to perform the high-temperature steam washing process in step S602, may be determined according to a time duration condition; for example, in the case that the duration condition in step S602 is associated with the usage environment of the air conditioner, when the usage environment is a kitchen or other oil-polluted scene, the high-temperature steam device may be selected to perform steam cleaning on the indoor heat exchanger in step S602; and when the use environment is a scene with more oil stains such as a bedroom, the heating device can be selected to be started in the step S602, and here, compared with the high-temperature steam device, the mode that the heating device generates high-temperature steam is softer in steam airflow and lower in noise, so that the method is suitable for the scene with low demand noise, and the uncomfortable influence of the air conditioner on the user caused by the execution of the high-temperature steam cleaning process is reduced.

Optionally, the controlling the air conditioner to execute the high-temperature steam cleaning process in step S602 further includes: detecting the temperature of the heat exchanger; and after the temperature of the heat exchanger reaches the set temperature and the set temperature lasts for the set time, controlling to turn off the heating device.

Here, when the temperature of the heat exchanger reaches the set temperature, the increase is stopped and the current output power of the heating device is maintained, that is, the heating device is stably operated at the current output power when the set temperature is reached within the set time period. At this time, the temperature of the heat exchanger reaches the temperature requirement for generating high-temperature steam, and therefore, the heating device is controlled to stop continuously increasing the output power of the heating device, so that the power consumption for operating the heating device is reduced.

Here, the indoor unit of the air conditioner is provided with a temperature sensor, which can be used to detect the temperature of the heat exchanger; therefore, in step S602, the temperature sensor detects the temperature of the heat exchanger.

Optionally, the set time duration is 10 min.

Optionally, the step S602 of controlling the air conditioner to execute the high-temperature steam cleaning process further includes: and after the heating device is controlled to be closed, controlling the fan to operate at a set wind gear. Optionally, the set wind gear is a high wind gear.

Fig. 7 is a flowchart illustrating a control method of self-cleaning of an air conditioner according to still another exemplary embodiment of the present invention.

As shown in fig. 7, the present invention provides another control method for self-cleaning of an air conditioner, which mainly comprises the following steps:

s701, determining the accumulated time length of the air conditioner from the previous self-cleaning process execution to the present;

in this embodiment, the specific implementation manner of step S701 may refer to step S201 in the foregoing, which is not described herein again.

S702, controlling an air conditioner to execute a high-temperature steam cleaning process when the accumulated time length meets a preset time length condition;

Or, the parameter information, the association relationship, and the like of the embodiments are pre-stored in a network server that is configured by an air conditioner manufacturer as a user, and the air conditioner of the user can communicate with the network server through a data channel such as a wifi network of a home, so that the air conditioner can also send a query instruction and the like to the network server, where the instruction carries an identifier such as an area where the air conditioner is located or a use environment, and the network server responds to the query instruction, calls a corresponding duration condition according to the identifier carried by the query instruction, and feeds the duration condition back to the air conditioner of the user, so that the air conditioner can determine the duration condition adapted to the current working condition, and perform the determination process in step S702 by using the duration condition.

Optionally, in step S702, the present invention controls the air conditioner to execute the high-temperature steam cleaning process, including: the heating device at the bottom of the water receiving tray is controlled to be started.

After the heating device at the bottom of the water receiving tray is controlled to be started, the heating device adjusts the output power of the heating device according to a preset starting and stopping rule.

The specific start-stop rule is that the air conditioner starts and stops the heating device at set frequency, if the air conditioner starts the heating device once every 1min within a period with the duration of 10min, the running duration of the heating device after each time is 2 min; optionally, the time interval between two adjacent starting of the heating device may be a fixed time interval or an unfixed time interval, and the operation time of a single starting of the heating device may be equal in time or unequal in time. Meanwhile, the output power after the heating device is turned on every time can be the same or different. The specific duration and the specific output power can be set before the air conditioner leaves a factory, so that the heating device can realize dynamic operation state switching.

Or, in step S702, the present invention controls the air conditioner to execute the high temperature steam cleaning process, including: and controlling to start the high-temperature steam device.

Optionally, the device for generating steam, which is turned on to perform the high-temperature steam washing process in step S702, may be determined according to a time period condition; for example, in the case that the duration condition in step S702 is associated with the usage environment of the air conditioner, when the usage environment is a kitchen or other oil-polluted scene, the high-temperature steam device may be selected to perform steam cleaning on the indoor heat exchanger in step S702; and when the use environment is a scene with more oil stains such as a bedroom, the heating device can be selected to be started in the step S702, and here, compared with the high-temperature steam device, the mode that the heating device generates high-temperature steam is softer in steam airflow and lower in noise, so that the method is suitable for the scene with low demand noise, and the uncomfortable influence of the air conditioner on a user due to the fact that the air conditioner executes a high-temperature steam cleaning process is reduced.

Optionally, the controlling the air conditioner to execute the high-temperature steam cleaning process in step S702 further includes: detecting the temperature of the heat exchanger; and after the temperature of the heat exchanger reaches the set temperature and the set temperature lasts for the set time, controlling to turn off the heating device.

Here, the indoor unit of the air conditioner is provided with a temperature sensor, which can be used to detect the temperature of the heat exchanger; therefore, in step S702, the temperature sensor detects the temperature of the heat exchanger.

Optionally, the set time duration is 10 min.

Optionally, the step S702 of controlling the air conditioner to execute the high-temperature steam cleaning process further includes: and after the heating device is controlled to be closed, controlling the fan to operate at a set wind gear. Optionally, the set wind gear is a high wind gear.

As shown in fig. 8, the present invention provides another control method for self-cleaning of an air conditioner, which mainly comprises the following steps:

s801, determining the accumulated time length of the air conditioner from the previous self-cleaning process execution to the present;

s802, determining the scaling degree of a heat exchanger of the air conditioner when the accumulated time length meets a preset time length condition;

s803, if the scaling degree meets the preset cleaning triggering condition, controlling the air conditioner to execute a high-temperature steam cleaning process and a heating mode aiming at the heat exchanger to be cleaned;

in this embodiment, the specific implementation manner of steps S801 to S803 may refer to steps S501 to S503 in the foregoing, which is not described herein again.

And S804, controlling the air conditioner to execute a defrosting-defrosting cleaning process when the condition that the high-temperature steam cleaning process exits is determined to be met.

Optionally, the exit of the high-temperature steam cleaning process is that the temperature of the heat exchanger reaches the set temperature and the set temperature continues for the set time.

Here, the specific implementation manner of the air conditioner performing the defrosting-defrosting cleaning process can refer to the content disclosed in the foregoing, and is not described herein again.

Optionally, in step S802, the present invention controls the air conditioner to execute the high-temperature steam cleaning process, including: the heating device at the bottom of the water receiving tray is controlled to be started.

Or, in step S802, the present invention controls the air conditioner to execute the high temperature steam cleaning process, including: and controlling to start the high-temperature steam device.

Optionally, the device for generating steam, which is turned on to perform the high-temperature steam cleaning process in step S802, may be determined according to a time duration condition; for example, when the duration condition in step S802 is associated with the usage environment of the air conditioner, and the usage environment is a kitchen or other oil-polluted scene, the high-temperature steam device may be selected to perform steam cleaning on the indoor heat exchanger in step S802; and when the use environment is a bedroom or other scene with more oil stains, the heating device can be selected to be started in the step S802, and here, compared with the high-temperature steam device, the mode that the heating device generates high-temperature steam is softer in steam airflow and lower in noise, so that the method is suitable for the scene with low demand noise, and the uncomfortable influence of the air conditioner on the user caused by the execution of the high-temperature steam cleaning process is reduced.

Optionally, the step S802 of controlling the air conditioner to execute the high-temperature steam cleaning process further includes: detecting the temperature of the heat exchanger; and after the temperature of the heat exchanger reaches the set temperature and the set temperature lasts for the set time, controlling to turn off the heating device.

Here, the indoor unit of the air conditioner is provided with a temperature sensor, which can be used to detect the temperature of the heat exchanger; therefore, in step S802, the temperature sensor detects the temperature of the heat exchanger.

Optionally, the set time duration is 10 min.

Optionally, the step S802 of controlling the air conditioner to execute the high-temperature steam cleaning process further includes: and after the heating device is controlled to be closed, controlling the fan to operate at a set wind gear. Optionally, the set wind gear is a high wind gear.

In an alternative embodiment, the air conditioning garment generally includes a body and a controller that may be used to control the control flow disclosed in the embodiment of fig. 1 above.

Specifically, the controller is configured to:

and when the accumulated time length meets a preset time length condition, controlling the air conditioner to execute a high-temperature steam cleaning process.

In an alternative embodiment, the air conditioner comprises a heating device arranged at the bottom of the water pan, wherein the heating device is used for heating water accumulated in the water pan to a state of generating high-temperature steam;

the controller is specifically configured to: the heating device at the bottom of the water receiving tray is controlled to be started.

In an optional embodiment, the air conditioner further comprises a water level detector for detecting the water amount of the water pan before the heating device at the bottom of the water pan is controlled to be turned on;

the controller is further configured to: and after the temperature of the heat exchanger reaches the set temperature and the set temperature lasts for the set time, controlling to turn off the heating device.

In an alternative embodiment, the controller is further configured to:

The specific manner in which the controller controls the above process can refer to the foregoing embodiments, and is not described herein again.

In yet another alternative embodiment, the controller of the air conditioning garment may be used to control the control flow disclosed in the embodiment of fig. 2 above.

Specifically, the controller is configured to:

and if the scaling degree meets the preset cleaning triggering condition, controlling the air conditioner to execute a high-temperature steam cleaning process.

In an alternative embodiment, the controller is specifically configured to:

In an alternative embodiment, the controller is further configured to:

In yet another alternative embodiment, the controller of the air conditioning garment may be used to control the control flow disclosed in the embodiment of fig. 3 above.

Specifically, the controller is configured to:

determining the concentration of bacteria breeding of a heat exchanger to be cleaned of the air conditioner;

and when the concentration of the breeding bacteria meets a preset concentration condition, controlling the air conditioner to execute a high-temperature steam cleaning process.

In an alternative embodiment, the controller is further configured to:

In yet another alternative embodiment, the controller of the air conditioning garment may be used to control the control flow disclosed in the embodiment of fig. 4 above.

Specifically, the controller is configured to:

and if the scaling degree meets the preset cleaning triggering condition, controlling the air conditioner to execute a high-temperature steam cleaning process and a heating mode aiming at the heat exchanger to be cleaned.

In an alternative embodiment, the controller is specifically configured to:

In an alternative embodiment, the controller is further configured to:

In yet another alternative embodiment, the controller of the air conditioning garment may be used to control the control flow disclosed in the embodiment of fig. 5 above.

Specifically, the controller is configured to:

when the accumulated time length meets a preset time length condition, controlling the air conditioner to execute a high-temperature steam cleaning process; wherein, the high-temperature steam cleaning process comprises controlling to open the heating device at the bottom of the water pan and gradually increasing the output power of the heating device.

The air conditioner also comprises a water level detector which is used for detecting the water volume of the water pan before the heating device at the bottom of the water pan is controlled to be started;

The air conditioner also comprises a temperature sensor for detecting the temperature of the heat exchanger;

The controller is further configured to:

and when the temperature of the heat exchanger reaches the set temperature, stopping increasing and maintaining the current output power of the heating device.

In yet another alternative embodiment, the controller of the air conditioning garment may be used to control the control flow disclosed in the embodiment of fig. 6 above.

Specifically, the controller is configured to:

The controller is further configured to:

In yet another alternative embodiment, the controller of the air conditioning garment may be used to control the control flow disclosed above in the embodiment of fig. 7.

Specifically, the controller is configured to:

In an alternative embodiment, the controller is specifically configured to:

In an alternative embodiment, the controller is further configured to:

It is to be understood that the present invention is not limited to the procedures and structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

1. A control method for self-cleaning of an air conditioner is characterized by comprising the following steps:

if the scaling degree meets a preset cleaning triggering condition, controlling the air conditioner to execute a high-temperature steam cleaning process and a heating mode aiming at a heat exchanger to be cleaned;

and controlling the air conditioner to execute a frost condensation-defrosting cleaning process when the condition for exiting the high-temperature steam cleaning process is determined to be met.

2. The control method of claim 1, wherein the determining a degree of fouling of a heat exchanger of the air conditioner comprises:

3. The control method according to claim 2, wherein the air conditioner comprises a heating device arranged at the bottom of a water pan, and the heating device is used for heating water accumulated in the water pan to a state of generating high-temperature steam;

the controlling the air conditioner to execute the high-temperature steam cleaning process includes:

detecting the water amount of the water receiving tray;

if the water quantity does not meet the preset water quantity condition, the heating device at the bottom of the water receiving tray is not controlled to be started; and/or controlling a water supply pipe to supplement water to the water receiving tray.

4. The control method according to claim 2, wherein the determining that the exit condition of the high temperature steam washing process is satisfied includes:

detecting the temperature of the heat exchanger;

and after the temperature of the heat exchanger reaches a set temperature and the set temperature continues for a set time, determining that the exit condition of the high-temperature steam cleaning process is met, and controlling to close the heating device.

5. The control method according to claim 4, characterized by further comprising:

6. An air conditioner, characterized in that, the air conditioner includes an organism and a controller, wherein, the controller is used for:

7. The air conditioner of claim 6, wherein the controller is specifically configured to:

8. The air conditioner as claimed in claim 7, wherein the air conditioner includes a heating device provided at a bottom of the water receiving tray, the heating device being for heating the water accumulated in the water receiving tray to a state of generating high-temperature steam;

9. The air conditioner according to claim 7,

the controller is further configured to: and after the temperature of the heat exchanger reaches a set temperature and the set temperature continues for a set time, determining that the exit condition of the high-temperature steam cleaning process is met, and controlling to close the heating device.

10. The air conditioner of claim 9, wherein the controller is further configured to: