CN113719970A - Air conditioner, self-cleaning method and device thereof, and computer readable storage medium - Google Patents
Air conditioner, self-cleaning method and device thereof, and computer readable storage medium Download PDFInfo
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- CN113719970A CN113719970A CN202110897019.0A CN202110897019A CN113719970A CN 113719970 A CN113719970 A CN 113719970A CN 202110897019 A CN202110897019 A CN 202110897019A CN 113719970 A CN113719970 A CN 113719970A
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- 238000004378 air conditioning Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The application provides an air conditioner and a self-cleaning method, a self-cleaning device and a computer readable storage medium thereof, wherein the self-cleaning method of the air conditioner comprises the following steps: adjusting at least one of an operating frequency of the compressor, an opening degree of the expansion valve, or a rotational speed of the first fan to frost a first region of the first heat exchanger; if the frosting condition of the first area meets a first preset condition, adjusting at least one of the working frequency of the compressor, the opening degree of the expansion valve or the rotating speed of the first fan to frost the second area of the first heat exchanger; and if the frosting condition of the second area meets a second preset condition, the first heat exchanger is defrosted and cleaned. The frosting and defrosting are carried out on the upper portion and the lower portion of the heat exchanger in the air conditioner, the frosting uniformity of the surface of the heat exchanger is guaranteed, and then the self-cleaning effect of the air conditioner is guaranteed.
Description
Technical Field
The application relates to the technical field of air conditioners, in particular to an air conditioner, a self-cleaning method and device thereof, and a computer readable storage medium.
Background
At present, the surface of an air conditioner heat exchanger needs to be cleaned regularly, otherwise, the accumulated dust on the surface reduces the heat exchange capacity and the energy efficiency; and the indoor unit is easy to form a humid microbial parasitic environment, which affects the healthy use of users.
For this reason, the conventional air conditioner employs a self-cleaning function to clean the surface of the heat exchanger, wherein the cleaning method is divided into a frosting-defrosting self-cleaning process and a mechanical defrosting process. The frosting-defrosting self-cleaning process firstly enables the heat exchanger to enter a refrigeration frosting stage, after frosting is finished, the four-way valve of the air conditioner is reversed to heat and defrost, and defrosting water flushes the surface of the heat exchanger, so that the purpose of self-cleaning of the air conditioner is achieved.
However, the self-cleaning effect of the air conditioner is poor due to the uneven frosting phenomenon in the frosting-defrosting self-cleaning process, and therefore, the self-cleaning frequency of the air conditioner needs to be increased to maintain the heat exchange capability of the heat exchanger, which undoubtedly reduces the user experience.
Disclosure of Invention
The application provides an air conditioner, a self-cleaning method thereof and a computer storage medium, and aims to solve the technical problem that frosting is not uniform in the existing frosting-defrosting self-cleaning process of the air conditioner.
In a first aspect, the present application provides an air conditioner self-cleaning method, which is applied to an air conditioner, the air conditioner includes a first heat exchanger, a first fan, a compressor, and an expansion valve, and the air conditioner self-cleaning method includes:
adjusting at least one of an operating frequency of the compressor, an opening degree of the expansion valve, or a rotational speed of the first fan to frost a first region of the first heat exchanger;
if the frosting condition of the first area meets a first preset condition, adjusting at least one of the working frequency of the compressor, the opening degree of the expansion valve or the rotating speed of the first fan to frost the second area of the first heat exchanger;
and if the frosting condition of the second area meets a second preset condition, the first heat exchanger is defrosted and cleaned.
In some embodiments, the step of adjusting at least one of an operating frequency of the compressor, an opening degree of the expansion valve, or a rotational speed of the first fan to frost the first region of the first heat exchanger comprises:
controlling the compressor to work at a first working frequency;
the adjusting at least one of an operating frequency of the compressor, an opening degree of the expansion valve, or a rotational speed of the first fan to frost the second region of the first heat exchanger includes:
controlling the compressor to work at a second working frequency;
wherein the second operating frequency is greater than the first operating frequency.
In some embodiments, the step of adjusting at least one of an operating frequency of the compressor, an opening degree of the expansion valve, or a rotational speed of the first fan to frost the first region of the first heat exchanger comprises:
controlling the expansion valve to open at a first opening degree;
the adjusting at least one of an operating frequency of the compressor, an opening degree of the expansion valve, or a rotational speed of the first fan to frost the second region of the first heat exchanger includes:
controlling the expansion valve to be opened at a second opening degree;
wherein the second opening degree is greater than the first opening degree.
In some embodiments, the step of adjusting at least one of an operating frequency of the compressor, an opening degree of the expansion valve, or a rotational speed of the first fan to frost the first region of the first heat exchanger comprises:
controlling the first fan to work at a first rotating speed;
the adjusting at least one of an operating frequency of the compressor, an opening degree of the expansion valve, or a rotational speed of the first fan to frost the second region of the first heat exchanger includes:
controlling the first fan to work at a second rotating speed;
wherein the second rotation speed is less than the first rotation speed.
In some embodiments, the air conditioner further comprises a second heat exchanger and a second fan, and after the defrosting cleaning of the first heat exchanger or before the first area of the first heat exchanger frosts, the method further comprises:
adjusting at least one of an operating frequency of the compressor, an opening degree of the expansion valve, or a rotational speed of the second fan to frost a third region of the second heat exchanger;
if the frosting condition of the third area meets a third preset condition, adjusting at least one of the working frequency of the compressor, the opening degree of the expansion valve or the rotating speed of the second fan to frost the fourth area of the second heat exchanger;
and if the frosting condition of the fourth area meets a fourth preset condition, the second heat exchanger is defrosted and cleaned.
In some embodiments, the air conditioner further comprises a second heat exchanger and a second fan, and before frosting in the first area of the first heat exchanger, the method further comprises:
controlling the second heat exchanger to enter a frosting stage so as to frost on the surface of the first heat exchanger;
controlling the first fan to rotate reversely so as to pre-clean the first heat exchanger;
and controlling the second heat exchanger to enter a defrosting stage so that the second heat exchanger is defrosted to carry out self cleaning.
In some embodiments, the first preset condition is to control at least one of an operating frequency of the compressor, an opening degree of the expansion valve, or a rotation speed of the first fan to operate for a first preset time;
the second preset condition is that at least one of the working frequency of the compressor, the opening degree of the expansion valve or the rotating speed of the first fan is controlled to continuously work for a second preset time.
In a second aspect, the present application provides a self-cleaning apparatus for an air conditioner, comprising:
the first frosting module is used for adjusting at least one of the working frequency of the compressor, the opening degree of the expansion valve or the rotating speed of the first fan so as to frost a first area of the first heat exchanger;
the second frosting module is used for adjusting at least one of the working frequency of the compressor, the opening degree of the expansion valve or the rotating speed of the first fan to frost a second area of the first heat exchanger when the frosting condition of the first area meets a first preset condition;
and the defrosting module is used for controlling the first heat exchanger to defrost and clean when the frosting condition of the second area meets a second preset condition.
In a third aspect, the present application provides an air conditioner comprising:
the system comprises a first heat exchanger, a first fan, a compressor and an expansion valve;
one or more processors;
a memory; and
one or more application programs, wherein the one or more application programs are stored in the memory and configured to be executed by the processor to implement the air conditioner self-cleaning method as in the first aspect.
In a fourth aspect, the present application provides a computer-readable storage medium, on which a computer program is stored, the computer program being loaded by a processor to perform the steps of the air conditioner self-cleaning method according to the first aspect.
Through controlling the working frequency of the compressor, the opening degree of the expansion valve or the rotating speed of the first fan, the frosting is carried out on the upper portion or the lower portion of the heat exchanger, then the frosting is carried out in another area, the frosting uniformity of the surface of the heat exchanger is guaranteed, the self-cleaning effect of the air conditioner is further guaranteed, and the phenomenon that the self-cleaning frequency of the air conditioner is improved to keep the heat exchange capacity of the heat exchanger and then reduce the user use experience is avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of a composition of an air conditioner provided in an embodiment of the present application;
FIG. 2 is a schematic flow chart diagram illustrating an embodiment of a self-cleaning method for an air conditioner provided in an embodiment of the present application;
FIG. 3 is a schematic flow diagram of an embodiment of a frosting process for a second heat exchanger provided in embodiments of the present application;
FIG. 4 is a schematic flow diagram of another embodiment of a frosting process for a second heat exchanger provided in an embodiment of the present application;
FIG. 5 is a schematic structural diagram of an embodiment of a self-cleaning device of an air conditioner provided in an embodiment of the present application;
fig. 6 is a schematic structural diagram of an embodiment of an air conditioner provided in the embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the invention. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes are not shown in detail to avoid obscuring the description of the invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
The embodiments of the present application provide an air conditioner, a self-cleaning method and apparatus thereof, and a computer-readable storage medium, which are described in detail below.
First, referring to fig. 1, fig. 1 shows a schematic composition diagram of an air conditioner provided in an embodiment of the present application, where the air conditioner includes a first heat exchanger 101, a first fan 102, a second heat exchanger 105, a second fan 106, a compressor 103, and an expansion valve 104.
The first heat exchanger 101 and the second heat exchanger 105 respectively exchange heat indoors and outdoors to realize cooling or heating at the indoor side, that is, one of the first heat exchanger 101 and the second heat exchanger 105 is an indoor heat exchanger, and the other is an outdoor heat exchanger. For example, the first heat exchanger 101 and the second heat exchanger 105 may be a dividing wall type heat exchanger or a regenerative type heat exchanger, such as a shell-and-tube type heat exchanger, a double pipe type heat exchanger, and the like.
The first fan 102 and the second fan 106 respectively convey indoor heat exchange air and outdoor heat exchange air to the first heat exchanger 101 and the second heat exchanger 105, so that the heat exchange efficiency of the first heat exchanger 101 and the second heat exchanger 105 is improved. For example, the first fan 102 and the second fan 106 may be a centrifugal fan, an axial fan, a cross-flow fan, a mixed-flow fan, or the like.
The compressor 103 compresses a driving refrigerant in the air conditioning refrigerant circuit so as to draw the refrigerant from a low pressure region to be compressed and then sent to a high pressure region to be cooled and condensed, and radiates heat to an indoor side when heating is required and radiates heat to an outdoor side when cooling is required through the first heat exchanger 101 or the second heat exchanger 105. Illustratively, the compressor 103 may be a reciprocating compressor 103, a rotary compressor 103, such as a screw compressor 103, a centrifugal compressor 103, or the like.
The expansion valve 104 is used to throttle the medium-temperature high-pressure liquid refrigerant into low-temperature low-pressure wet steam, and then the refrigerant absorbs heat in the indoor heat exchanger to achieve a cooling effect, or absorbs heat in the outdoor heat exchanger to achieve a heating effect. Illustratively, the expansion valve 104 may be an internally balanced expansion valve 104 and an externally balanced expansion valve 104.
It should be noted that the above description of the air conditioner is only for the sake of clarity of the verification process of the present application, and those skilled in the art can make equivalent modifications to the above air conditioner under the guidance of the present application, for example, the air conditioner may further include a liquid storage tank for storing a refrigerant, a four-way valve for controlling the air conditioner to switch heating and cooling modes, and the like.
Because the area of the heat exchanger on the outdoor side of the air conditioner is large at present, the liquid refrigerant is often evaporated and absorbs heat at the bottom of the heat exchanger on the outdoor side, so that the frosting of the heat exchanger on the outdoor side is often concentrated on the lower part where the liquid refrigerant flows in, but the frosting cannot be formed on the upper part, and finally the frosting is uneven and the self-cleaning effect is poor.
Continuing to refer to fig. 2, fig. 2 is a schematic flow chart illustrating a self-cleaning method of an air conditioner according to an embodiment of the present application, wherein the self-cleaning method of the air conditioner is applied to the air conditioner according to any of the embodiments, and the self-cleaning method of the air conditioner includes:
step S201, adjusting at least one of the operating frequency of the compressor 103, the opening degree of the expansion valve 104, or the rotation speed of the first fan 102 to frost a first area of the first heat exchanger 101;
frosting the first area of the first heat exchanger 101 may be that the air conditioner receives an air conditioner self-cleaning command, specifically, the air conditioner self-cleaning command may be automatically triggered, for example, the system is preset to be automatically triggered once every month. In other embodiments of the present application, the air conditioner self-cleaning command may be triggered manually, for example, the air conditioner receives a command from a control panel, a mobile terminal or a remote controller to perform a cleaning operation.
The first area of the first heat exchanger 101 refers to the area where the refrigerant flows into the first heat exchanger 101, and the second area refers to the area corresponding to the refrigerant outflow or middle of the flow path (e.g. middle of the heat exchanger) of the first heat exchanger 101, and generally, the refrigerant inlet is arranged at the bottom of the heat exchanger, and the refrigerant outlet is arranged at the top of the heat exchanger, so the first area can be the bottom area of the first heat exchanger 101, and the second area can be the middle/top area of the first heat exchanger.
After the air conditioner enters the frosting stage, in order to ensure the frosting uniformity of the first heat exchanger 101, the frosting can be started from the top of the first heat exchanger 101 or the bottom of the first heat exchanger 101. In some embodiments of the present application, such as for embodiments where frost forms from the bottom of the first heat exchanger 101, the inlet for the refrigerant is typically located at the bottom of the heat exchanger, and frost forms at the bottom of the first heat exchanger 101 first, since the temperature of the refrigerant at the inlet into the bottom of the first heat exchanger 101 is lower. In other embodiments of the present application, such as embodiments where frost forms from the top of the first heat exchanger 101, the refrigerant inlet is located at the top of the heat exchanger, and frost forms on the top of the first heat exchanger 101 first, since the temperature of the refrigerant entering the top inlet of the first heat exchanger 101 is lower. It will be appreciated that when the inlet for refrigerant is provided in the middle of the heat exchanger, the corresponding heat exchanger will first start to frost in the middle.
Specifically, frost may be formed in the first area of the first heat exchanger 101 by controlling at least one of the operating frequency of the compressor 103, the opening degree of the expansion valve 104, or the rotation speed of the first fan 102. For example, the compressor 103 is controlled to operate at a first operating frequency; for another example, the expansion valve 104 is controlled to open at the first opening degree; as another example, the first fan 102 is controlled to operate at a first rotational speed.
Step S202, if the frosting condition of the first area meets a first preset condition, adjusting at least one of the working frequency of the compressor 103, the opening degree of the expansion valve 104 or the rotating speed of the first fan 102 to frost the second area of the first heat exchanger 101;
the first preset condition for completing frosting of the first area of the first heat exchanger 101 may be calibrated according to an actual situation, for example, the temperature corresponding to the first area of the first heat exchanger 101 and the external environment temperature are detected, the first preset condition may be that a temperature difference between the first area and the external environment temperature meets a corresponding threshold value, for example, 25 ℃, when the temperature difference meets the condition, it is indicated that frosting is completed in the first area, and frosting operation may be performed on the second area.
In some other embodiments of the present application, the first preset condition may also be to keep at least one of the operating frequency of the compressor 103, the opening degree of the expansion valve 104, or the rotation speed of the first fan 102 for a certain time, for example, the first preset condition is to control at least one of the operating frequency of the compressor 103, the opening degree of the expansion valve 104, or the rotation speed of the first fan 102 to continuously operate for a first preset time (e.g., 20 minutes), and for example, the operating frequency of the compressor 103 is kept at M, and the opening degree N1 of the expansion valve 104 is kept at T1 time, so that it is ensured that the first area of the first heat exchanger 101 is completely frosted.
After the first area of the first heat exchanger 101 is frosted, the second area of the first heat exchanger 101 can be frosted to ensure the uniformity of frosting of the whole first heat exchanger 101. Specifically, frost may be formed in the second region of the first heat exchanger 101 by controlling at least one of the operating frequency of the compressor 103, the opening degree of the expansion valve 104, or the rotation speed of the first fan 102. For example, the compressor 103 is controlled to operate at the second operating frequency; for another example, the expansion valve 104 is controlled to open at the second opening degree; for another example, the first fan 102 is controlled to operate at a second rotation speed, wherein the second operation frequency is greater than the first operation frequency, the second opening degree is greater than the first opening degree, and the second rotation speed is less than the first rotation speed.
Because the first area of the first heat exchanger 101 has finished frosting, the heat exchange effect in the area is poor, more liquid refrigerants can enter the second area of the heat exchanger to evaporate and frost through improving the working frequency of the compressor 103 and the opening degree of the expansion valve 104, the rotating speed of the fan is reduced, the heat exchange amount between the heat exchanger and the outside is reduced, the heat exchanger is kept at low temperature to frost, and the purpose of ensuring the frosting uniformity of the first heat exchanger 101 is finally achieved.
The technical principle that more liquid refrigerant can enter the second area of the heat exchanger for evaporation and frosting by increasing the working frequency of the compressor 103 is as follows: by increasing the operating frequency of the compressor 103, the refrigerant flow rate in the pipeline can be made faster, i.e. the time for which the refrigerant stays in the first area of the first heat exchanger 101 is shorter than the time before the adjustment, i.e. the refrigerant enters the second area of the first heat exchanger 101 directly with or without heat exchange in the first area of the first heat exchanger 101, so that the frosting area becomes the second area of the first heat exchanger 101.
The technical principle that increasing the opening degree of the expansion valve 104 can make more liquid refrigerant enter the second area of the heat exchanger for evaporation and frosting is as follows: by increasing the opening degree of the expansion valve 104, the flow rate of the liquid refrigerant can be increased, and further, under the condition that the first area of the first heat exchanger 101 is frosted and the heat exchange effect of the area is poor, more liquid refrigerant flows into the second area of the heat exchanger, so that the second area of the first heat exchanger 101 is frosted.
And reduce the rotational speed of fan, also can reach the technical principle who guarantees first heat exchanger 101 homogeneity of frosting and lie in: under the condition that the first area of the first heat exchanger 101 is frosted and the heat exchange effect of the area is poor, the rotating speed of the fan is reduced, so that the refrigerant flowing through the first area of the first heat exchanger 101 enters the second area of the first heat exchanger 101 in a mode of exchanging heat less, and the second area of the first heat exchanger 101 starts frosting.
Step S203, if the frosting condition of the second area meets a second preset condition, controlling the first heat exchanger to be defrosted and cleaned.
The second preset condition for completing frosting of the second area of the first heat exchanger 101 may be calibrated according to an actual situation, for example, the temperature corresponding to the second area of the first heat exchanger 101 and the external environment temperature are detected, the second preset condition may be that a temperature difference between the two temperature values satisfies a corresponding threshold value, for example, 25 ℃, when the temperature difference satisfies the condition, it is indicated that frosting is completed in the second area, and a defrosting operation may be performed on the entire first heat exchanger.
In some other embodiments of the present application, the second preset condition may also be to keep at least one of the operating frequency of the compressor 103, the opening degree of the expansion valve 104, or the rotation speed of the first fan 102 for a certain time, for example, the second preset condition is to control at least one of the operating frequency of the compressor 103, the opening degree of the expansion valve 104, or the rotation speed of the first fan 102 to continuously operate for a first preset time (e.g., 30 minutes), and for example, the second preset condition is to keep the operating frequency of the compressor 103 at M and the opening degree N2 of the expansion valve 104 at T2 time, which may ensure that the second area of the first heat exchanger 101 is frosted.
When the first area and the second area of the first heat exchanger 101 are frosted, the first heat exchanger 101 can be controlled to perform a defrosting stage, so that the first heat exchanger 101 is defrosted to perform self-cleaning. Specifically, the four-way valve of the air conditioner may be controlled to switch the flow direction of the refrigerant so that the first heat exchanger 101 performs a defrosting stage.
In the application, by controlling the working frequency of the compressor 103, the opening degree of the expansion valve 104 or the rotating speed of the first fan 102, the frosting is carried out on the upper part or the lower part of the heat exchanger, then the frosting is carried out in another area, the uniformity of the frosting on the surface of the heat exchanger is ensured, the self-cleaning effect of the air conditioner is further ensured, and the phenomenon that the self-cleaning frequency of the air conditioner is improved so as to keep the heat exchange capacity of the heat exchanger and further reduce the user use experience is avoided.
Further, in order to facilitate cleaning of the heat exchanger on the indoor side, in some embodiments of the present application, the above frosting method may also be used when the area of the heat exchanger on the indoor side is large. Referring to fig. 3, fig. 3 shows a schematic flow chart of a frosting method of the second heat exchanger 105 in the embodiment of the present application, wherein the air conditioner further includes the second heat exchanger 105 and a second fan 106, and after controlling the first heat exchanger 101 to enter the defrosting stage, or before controlling the first heat exchanger 101 to enter the defrosting stage, the frosting method of the second heat exchanger 105 includes:
step S301, adjusting at least one of the operating frequency of the compressor 103, the opening degree of the expansion valve 104, or the rotation speed of the second fan 106 to frost a third region of the second heat exchanger 105;
step S302, if the frosting condition of the third area meets a third preset condition, adjusting at least one of the working frequency of the compressor 103, the opening degree of the expansion valve 104 or the rotating speed of the second fan 106 to frost in the fourth area of the second heat exchanger 105;
step S303, if the frosting condition of the fourth area meets a fourth preset condition, controlling the second heat exchanger 105 to enter a defrosting stage.
The third area of the second heat exchanger 105 refers to the area where the refrigerant of the second heat exchanger 105 flows in, and the fourth area refers to the area corresponding to the refrigerant flowing out or middle of the flow path (for example, the middle of the heat exchanger) of the second heat exchanger 105, generally, the refrigerant inlet is arranged at the bottom of the heat exchanger, and the refrigerant outlet is arranged at the top of the heat exchanger, so the third area and the fourth area can be the bottom, middle/top area of the second heat exchanger 105, respectively.
The third preset condition for completing frosting in the third area of the second heat exchanger 105 may be calibrated according to an actual situation, for example, the temperature corresponding to the third area of the second heat exchanger 105 and the external environment temperature are detected, the third preset condition may be that the temperature difference between the third area and the external environment temperature meets a corresponding threshold value, for example, 25 ℃, when the temperature difference meets the condition, it is indicated that frosting is completed in the third area, and frosting may be performed in the fourth area, so as to ensure the frosting uniformity of the second heat exchanger 105.
In some other embodiments of the present application, the third preset condition may also be to keep at least one of the operating frequency of the compressor 103, the opening degree of the expansion valve 104, or the rotation speed of the second fan 106 operating for a certain time, for example, the operating frequency of the compressor 103 is kept at M, and the opening degree N3 of the expansion valve 104 is kept at T3 time, so that the third area of the second heat exchanger 105 is guaranteed to complete frosting.
The fourth preset condition for completing frosting in the fourth area of the second heat exchanger 105 may be calibrated according to an actual situation, for example, the temperature corresponding to the fourth area of the second heat exchanger 105 and the external environment temperature are detected, the fourth preset condition may be that the temperature difference between the fourth area and the external environment temperature meets a corresponding threshold value, for example, 25 ℃, when the temperature difference meets the condition, it is indicated that frosting is completed in the fourth area, and the defrosting and cleaning operation may be performed on the entire second heat exchanger 105.
In some other embodiments of the present application, the fourth preset condition may also be to keep at least one of the operating frequency of the compressor 103, the opening degree of the expansion valve 104, or the rotation speed of the second fan 106 operating for a certain time, for example, the operating frequency of the compressor 103 is kept at M, and the opening degree N4 of the expansion valve 104 is kept at T4 time, so that the fourth area of the second heat exchanger 105 is guaranteed to complete frosting.
It is understood that the self-cleaning processes of the first heat exchanger 101 and the second heat exchanger 105 may be performed simultaneously, for example, the first heat exchanger 101 performs defrosting during the frosting process of the second heat exchanger 105; for another example, the first heat exchanger 101 frosts, and the second heat exchanger 105 frosts.
Further, in some other embodiments of the present application, when the area of the heat exchanger on the indoor side is small, the frosting may be directly performed on the heat exchanger on the indoor side, referring to fig. 4, fig. 4 shows another flow chart of the frosting method of the second heat exchanger 105 in the embodiment of the present application, where the air conditioner further includes the second heat exchanger 105 and the second fan 106, and before controlling the first area of the first heat exchanger 101 to frost, the frosting method of the second heat exchanger 105 includes:
step S401, controlling the second heat exchanger 105 to enter a frosting stage so as to frost on the surface of the first heat exchanger 101;
step S402, controlling the first fan 102 to rotate reversely to pre-clean the first heat exchanger 101.
Step S403, then, controlling the second heat exchanger 105 to enter a defrosting stage, so that the second heat exchanger 105 is defrosted for self-cleaning.
When the air conditioner is in the delayed starting time of the refrigeration and heating mode switching frosting and defrosting stages, the first fan 102 on the outdoor side can be controlled to rotate reversely by using the spare time so as to remove larger fragments on the surface of the first heat exchanger 101 on the outdoor side, and the condition that the larger fragments cannot be removed by the frosting and defrosting water of the first heat exchanger 101 is avoided.
It is to be noted that the above description of the air conditioner self-cleaning method is only for the sake of clarity of the verification process of the present application, and those skilled in the art can make equivalent modifications to the above air conditioner self-cleaning method under the guidance of the present application, for example, the first heat exchanger 101 may be an indoor side heat exchanger, and the second heat exchanger 105 may be an outdoor side heat exchanger.
In order to better implement the self-cleaning method of the air conditioner in the embodiment of the present application, based on the self-cleaning method of the air conditioner, the embodiment of the present application further provides a self-cleaning device of the air conditioner, as shown in fig. 5, the self-cleaning device 500 of the air conditioner includes:
a first frosting module 501, wherein the first frosting module 501 is used for adjusting at least one of the working frequency of the compressor 103, the opening degree of the expansion valve 104 or the rotating speed of the first fan 102 to frost a first area of the first heat exchanger 101;
the second frosting module 502, the second frosting module 502 is configured to, when the frosting condition of the first area meets a first preset condition, adjust at least one of the operating frequency of the compressor 103, the opening degree of the expansion valve 104, or the rotation speed of the first fan 102 to frost the second area of the first heat exchanger 101;
and the defrosting module 503 is used for controlling the first heat exchanger 101 to defrost and clean when the frosting condition in the second area meets a second preset condition.
In some embodiments of the present application, the first and second frosting modules 501 and 502 are specifically configured to:
the step of adjusting at least one of the operating frequency of the compressor 103, the opening degree of the expansion valve 104, or the rotational speed of the first fan 102 to frost the first region of the first heat exchanger 101 includes:
controlling the compressor 103 to operate at a first operating frequency;
the step of adjusting at least one of the operating frequency of the compressor 103, the opening degree of the expansion valve 104, or the rotational speed of the first fan 102 to frost the second region of the first heat exchanger 101 includes:
controlling the compressor 103 to operate at a second operating frequency;
wherein the second operating frequency is greater than the first operating frequency.
In some embodiments of the present application, the first and second frosting modules 501 and 502 are specifically configured to:
the step of adjusting at least one of the operating frequency of the compressor 103, the opening degree of the expansion valve 104, or the rotational speed of the first fan 102 to frost the first region of the first heat exchanger 101 includes:
controlling the expansion valve 104 to open at a first opening degree;
the step of adjusting at least one of the operating frequency of the compressor 103, the opening degree of the expansion valve 104, or the rotational speed of the first fan 102 to frost the second region of the first heat exchanger 101 includes:
controlling the expansion valve 104 to open at the second opening degree;
wherein the second opening degree is greater than the first opening degree.
In some embodiments of the present application, the first and second frosting modules 501 and 502 are specifically configured to:
the step of adjusting at least one of the operating frequency of the compressor 103, the opening degree of the expansion valve 104, or the rotational speed of the first fan 102 to frost the first region of the first heat exchanger 101 includes:
controlling the first fan 102 to work at a first rotating speed;
the step of adjusting at least one of the operating frequency of the compressor 103, the opening degree of the expansion valve 104, or the rotational speed of the first fan 102 to frost the second region of the first heat exchanger 101 includes:
controlling the first fan 102 to work at a second rotating speed;
wherein the second rotation speed is less than the first rotation speed.
In some embodiments of the present application, the first frosting module 501, the second frosting module 502, and the defrosting module 503 are further configured to:
adjusting at least one of an operating frequency of the compressor 103, an opening degree of the expansion valve 104, or a rotation speed of the second fan 106 to frost a third region of the second heat exchanger 105;
if the frosting condition of the third area meets a third preset condition, adjusting at least one of the working frequency of the compressor 103, the opening degree of the expansion valve 104 or the rotating speed of the second fan 106 to frost the fourth area of the second heat exchanger 105;
and if the frosting condition of the fourth area meets a fourth preset condition, controlling the second heat exchanger 105 to defrost and clean.
In some other embodiments of the present application, the first frosting module 501, the second frosting module 502, and the defrosting module 503 are further configured to:
controlling the second heat exchanger 105 to enter a frosting stage so as to frost on the surface of the first heat exchanger 101;
controlling the first fan 102 to rotate reversely to pre-clean the first heat exchanger 101;
and controlling the second heat exchanger 105 to enter a defrosting stage, so that the second heat exchanger 105 is defrosted for self cleaning.
It should be understood that the apparatus shown in fig. 5 and its modules may be implemented in various ways. For example, in some embodiments, an apparatus and its modules may be implemented by hardware, software, or a combination of software and hardware. Wherein the hardware portion may be implemented using dedicated logic; the software portions may be stored in a memory for execution by a suitable instruction execution system, such as a microprocessor or specially designed hardware. Those skilled in the art will appreciate that the methods and systems described above may be implemented using computer executable instructions and/or embodied in processor control code, such code being provided, for example, on a carrier medium such as a diskette, CD-or DVD-ROM, a programmable memory such as read-only memory (firmware), or a data carrier such as an optical or electronic signal carrier. The system and its modules of the present application may be implemented not only by hardware circuits such as very large scale integrated circuits or gate arrays, semiconductors such as logic chips, transistors, or programmable hardware devices such as field programmable gate arrays, programmable logic devices, etc., but also by software executed by various types of processors, for example, or by a combination of the above hardware circuits and software (e.g., firmware).
It should be noted that the above description of the apparatus and its modules is for convenience only and should not limit the present application to the scope of the illustrated embodiments. It will be appreciated by those skilled in the art that, given the teachings of the present system, any combination of modules or sub-system configurations may be used to connect to other modules without departing from such teachings. For example, the first frosting module 501, the second frosting module 502, and the defrosting module 503 disclosed in fig. 5 may be different modules in a system, or may be a module that implements the functions of two or more modules, for example, the second frosting module 502 and the defrosting module 503 may be two modules having frosting and defrosting functions, or may be a module having frosting and defrosting functions at the same time.
In order to better implement the self-cleaning method of the air conditioner in the embodiment of the present application, on the basis of the self-cleaning method of the air conditioner, an embodiment of the present application further provides an air conditioner, which integrates any one of the air conditioners provided in the embodiment of the present application, and the air conditioner includes:
a first heat exchanger 101, a first fan 102, a compressor 103, and an expansion valve 104;
one or more processors;
a memory; and
one or more application programs, wherein the one or more application programs are stored in the memory and configured to be executed by the processor to perform the steps of the air conditioner self-cleaning method according to any one of the above embodiments.
As shown in fig. 6, it shows a schematic structural diagram of an air conditioner according to an embodiment of the present application, specifically:
the air conditioner may include a processor 601 of one or more processing cores, memory 602 of one or more computer readable storage media. Those skilled in the art will appreciate that the configuration shown in fig. 6 does not constitute a limitation of the air conditioner, and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. Wherein:
the processor 601 is a control center of the system, connects various parts of the entire system using various interfaces and lines, and performs various functions of the system and processes data by operating or executing software programs and/or modules stored in the memory 602 and calling data stored in the memory 602, thereby monitoring the entire system. Optionally, processor 601 may include one or more processing cores; the Processor 601 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, preferably the processor 601 may integrate an application processor, which handles primarily the operating system, user interfaces, application programs, etc., and a modem processor, which handles primarily wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 601.
The memory 602 may be used to store software programs and modules, and the processor 601 executes various functional applications and data processing by operating the software programs and modules stored in the memory 602. The memory 602 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data created according to the use of the air conditioner, and the like. Further, the memory 602 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 602 may also include a memory controller to provide the processor 601 with access to the memory 602.
Although not shown, the air conditioner may further include a display unit and the like, which will not be described in detail herein. Specifically, in this embodiment, the processor 601 in the air conditioner loads the executable file corresponding to the process of one or more application programs into the memory 602 according to the following instructions, and the processor 601 runs the application program stored in the memory 602, thereby implementing various functions as follows:
adjusting at least one of an operating frequency of the compressor 103, an opening degree of the expansion valve 104, or a rotation speed of the first fan 102 to frost a first area of the first heat exchanger 101;
if the frosting condition of the first area meets a first preset condition, adjusting at least one of the working frequency of the compressor 103, the opening degree of the expansion valve 104 or the rotating speed of the first fan 102 to frost the second area of the first heat exchanger 101;
if the frosting condition of the second area meets a second preset condition, the first heat exchanger 101 is defrosted and cleaned.
It will be understood by those skilled in the art that all or part of the steps of the methods of the above embodiments may be performed by instructions or by associated hardware controlled by the instructions, which may be stored in a computer readable storage medium and loaded and executed by a processor.
To this end, an embodiment of the present invention provides a computer-readable storage medium, which may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like. The self-cleaning method of the air conditioner comprises a step of storing a computer program, and a step of executing the steps of the self-cleaning method of the air conditioner provided by the embodiment of the invention. For example, the computer program may be loaded by a processor to perform the steps of:
adjusting at least one of an operating frequency of the compressor 103, an opening degree of the expansion valve 104, or a rotation speed of the first fan 102 to frost a first area of the first heat exchanger 101;
if the frosting condition of the first area meets a first preset condition, adjusting at least one of the working frequency of the compressor 103, the opening degree of the expansion valve 104 or the rotating speed of the first fan 102 to frost the second area of the first heat exchanger 101;
if the frosting condition of the second area meets a second preset condition, the first heat exchanger 101 is defrosted and cleaned.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and parts that are not described in detail in a certain embodiment may refer to the above detailed descriptions of other embodiments, and are not described herein again.
Having thus described the basic concept, it will be apparent to those skilled in the art that the foregoing detailed disclosure is to be considered merely illustrative and not restrictive of the broad application. Various modifications, improvements and adaptations to the present application may occur to those skilled in the art, although not explicitly described herein. Such modifications, improvements and adaptations are proposed in the present application and thus fall within the spirit and scope of the exemplary embodiments of the present application.
Also, this application uses specific language to describe embodiments of the application. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the present application is included in at least one embodiment of the present application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, some features, structures, or characteristics of one or more embodiments of the present application may be combined as appropriate.
Accordingly, various aspects of the present application may be embodied entirely in hardware, entirely in software (including firmware, resident software, micro-code, etc.) or in a combination of hardware and software. The above hardware or software may be referred to as "data block," module, "" engine, "" unit, "" component, "or" system. Furthermore, aspects of the present application may be represented as a computer product, including computer readable program code, embodied in one or more computer readable media.
The computer storage medium may comprise a propagated data signal with the computer program code embodied therewith, for example, on baseband or as part of a carrier wave. The propagated signal may take any of a variety of forms, including electromagnetic, optical, etc., or any suitable combination. A computer storage medium may be any computer-readable medium that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code located on a computer storage medium may be propagated over any suitable medium, including radio, cable, fiber optic cable, RF, or the like, or any combination of the preceding.
Computer program code required for the operation of various portions of the present application may be written in any one or more programming languages, including an object oriented programming language such as Java, Scala, Smalltalk, Eiffel, JADE, Emerald, C + +, C #, VB.NET, Python, and the like, a conventional programming language such as C, Visual Basic, Fortran 2003, Perl, COBOL 2002, PHP, ABAP, a dynamic programming language such as Python, Ruby, and Groovy, or other programming languages, and the like. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer may be connected to the user's computer through any network format, such as a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet), or in a cloud computing environment, or as a service, such as a software as a service (SaaS).
Additionally, the order in which elements and sequences of the processes described herein are processed, the use of alphanumeric characters, or the use of other designations, is not intended to limit the order of the processes and methods described herein, unless explicitly claimed. While various presently contemplated embodiments of the invention have been discussed in the foregoing disclosure by way of example, it is to be understood that such detail is solely for that purpose and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover all modifications and equivalent arrangements that are within the spirit and scope of the embodiments herein. For example, although the system components described above may be implemented by hardware devices, they may also be implemented by software-only solutions, such as installing the described system on an existing server or mobile device.
Similarly, it should be noted that in the preceding description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to require more features than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.
The air conditioner, the self-cleaning method, the self-cleaning device and the computer-readable storage medium thereof provided by the embodiments of the present application are described in detail above, and the principle and the implementation of the present invention are explained herein by applying specific embodiments, and the description of the embodiments above is only used to help understanding the method and the core idea of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A self-cleaning method of an air conditioner is characterized in that the self-cleaning method of the air conditioner is applied to the air conditioner, the air conditioner comprises a first heat exchanger, a first fan, a compressor and an expansion valve, and the self-cleaning method of the air conditioner comprises the following steps:
adjusting at least one of an operating frequency of the compressor, an opening degree of the expansion valve, or a rotational speed of the first fan to frost a first region of the first heat exchanger;
if the frosting condition of the first area meets a first preset condition, adjusting at least one of the working frequency of the compressor, the opening degree of the expansion valve or the rotating speed of the first fan to frost a second area of the first heat exchanger;
and if the frosting condition of the second area meets a second preset condition, the first heat exchanger is defrosted and cleaned.
2. A self-cleaning method of an air conditioner according to claim 1, wherein:
the adjusting at least one of an operating frequency of the compressor, an opening degree of the expansion valve, or a rotational speed of the first fan to frost a first region of the first heat exchanger includes:
controlling the compressor to operate at a first operating frequency;
the adjusting at least one of an operating frequency of the compressor, an opening degree of the expansion valve, or a rotational speed of the first fan to frost the second region of the first heat exchanger includes:
controlling the compressor to operate at a second operating frequency;
wherein the second operating frequency is greater than the first operating frequency.
3. A self-cleaning method of an air conditioner according to claim 1, wherein:
the adjusting at least one of an operating frequency of the compressor, an opening degree of the expansion valve, or a rotational speed of the first fan to frost a first region of the first heat exchanger includes:
controlling the expansion valve to be opened at a first opening degree;
the adjusting at least one of an operating frequency of the compressor, an opening degree of the expansion valve, or a rotational speed of the first fan to frost the second region of the first heat exchanger includes:
controlling the expansion valve to be opened at a second opening degree;
wherein the second opening degree is greater than the first opening degree.
4. A self-cleaning method of an air conditioner according to claim 1, wherein:
the adjusting at least one of an operating frequency of the compressor, an opening degree of the expansion valve, or a rotational speed of the first fan to frost a first region of the first heat exchanger includes:
controlling the first fan to work at a first rotating speed;
the adjusting at least one of an operating frequency of the compressor, an opening degree of the expansion valve, or a rotational speed of the first fan to frost the second region of the first heat exchanger includes:
controlling the first fan to work at a second rotating speed;
wherein the second rotational speed is less than the first rotational speed.
5. A self-cleaning method for an air conditioner according to claim 1, wherein said air conditioner further comprises a second heat exchanger and a second fan, and after said first heat exchanger is defrosted and cleaned or before said first area of said first heat exchanger is frosted, said method further comprises:
adjusting at least one of an operating frequency of the compressor, an opening degree of the expansion valve, or a rotational speed of the second fan to frost a third region of the second heat exchanger;
if the frosting condition of the third area meets a third preset condition, adjusting at least one of the working frequency of the compressor, the opening degree of the expansion valve or the rotating speed of the second fan to frost a fourth area of the second heat exchanger;
and if the frosting condition of the fourth area meets a fourth preset condition, the second heat exchanger is defrosted and cleaned.
6. A self-cleaning method for an air conditioner according to any one of claims 1 to 4, wherein said air conditioner further comprises a second heat exchanger and a second fan, and before frost forms on said first area of said first heat exchanger, said method further comprises:
controlling the second heat exchanger to enter a frosting stage so as to frost on the surface of the first heat exchanger;
controlling the first fan to rotate reversely so as to pre-clean the first heat exchanger;
and controlling the second heat exchanger to enter a defrosting stage so that the second heat exchanger is defrosted to carry out self cleaning.
7. A self-cleaning method of an air conditioner according to claim 1,
the first preset condition is that at least one of the working frequency of the compressor, the opening degree of the expansion valve or the rotating speed of the first fan is controlled to continuously work for a first preset time;
the second preset condition is that at least one of the working frequency of the compressor, the opening degree of the expansion valve or the rotating speed of the first fan is controlled to continuously work for a second preset time.
8. An air conditioner self-cleaning device, comprising:
a first frosting module for adjusting at least one of an operating frequency of the compressor, an opening degree of the expansion valve, or a rotation speed of the first fan to frost a first region of the first heat exchanger;
the second frosting module is used for adjusting at least one of the working frequency of the compressor, the opening degree of the expansion valve or the rotating speed of the first fan to frost a second area of the first heat exchanger when the frosting condition of the first area meets a first preset condition;
and the defrosting module is used for controlling the first heat exchanger to defrost and clean when the frosting condition of the second area meets a second preset condition.
9. An air conditioner, comprising:
the system comprises a first heat exchanger, a first fan, a compressor and an expansion valve;
one or more processors;
a memory; and
one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement the air conditioner self-cleaning method of any one of claims 1 to 7.
10. A computer-readable storage medium, having a computer program stored thereon, where the computer program is loaded by a processor to perform the steps of the air conditioner self-cleaning method as claimed in any one of claims 1 to 7.
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| CN202110897019.0A CN113719970A (en) | 2021-08-05 | 2021-08-05 | Air conditioner, self-cleaning method and device thereof, and computer readable storage medium |
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| CN202110897019.0A CN113719970A (en) | 2021-08-05 | 2021-08-05 | Air conditioner, self-cleaning method and device thereof, and computer readable storage medium |
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Application publication date: 20211130 |