CN115289595A

CN115289595A - Method and device for controlling self-cleaning of air conditioner, air conditioner and storage medium

Info

Publication number: CN115289595A
Application number: CN202210724926.XA
Authority: CN
Inventors: 张新朝; 耿宝寒; 胡志刚; 孙帅辉
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd; Haier Shenzhen R&D Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd; Haier Shenzhen R&D Co Ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-11-04

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a method for controlling self-cleaning of an air conditioner, which comprises the following steps: responding to a self-cleaning instruction of the air conditioner, and determining a target heat exchanger to be cleaned; controlling the operation parameters of the air conditioner according to the indoor and outdoor environment temperature so as to frost the target heat exchanger; after the first time, correcting the operating parameters of the air conditioner according to the temperature of the target heat exchanger and the preset frosting temperature; and controlling the target heat exchanger to execute a defrosting self-cleaning mode under the condition that the temperature of the target heat exchanger is less than or equal to the preset frosting temperature. The method combines the actual environmental parameters to adjust the frosting condition of the air conditioner, so that the frosting meets the self-cleaning requirement. Thereby improving the self-cleaning effect. The application also discloses a device for controlling the self-cleaning of the air conditioner, the air conditioner and a storage medium.

Description

Method and device for controlling self-cleaning of air conditioner, air conditioner and storage medium

Technical Field

The present application relates to the field of intelligent household appliance technologies, and for example, to a method and an apparatus for controlling self-cleaning of an air conditioner, and a storage medium.

Background

At present, the self-cleaning of the air-conditioning heat exchanger means that the surface of the heat exchanger is frosted, and then the four-way valve is used for reversing and defrosting to realize the self-cleaning of the surface of the heat exchanger. However, in the self-cleaning process, if the frosting effect is not good, the self-cleaning requirement is not met, and the self-cleaning is not thorough or fails.

In the related art, self-cleaning of an indoor unit is disclosed, which comprises starting a self-cleaning mode and controlling the refrigeration operation of a compressor; detecting the temperature of an indoor heat exchanger, and controlling the starting and stopping of an indoor fan and the flow of a refrigerant according to the temperature of the indoor heat exchanger so as to frost the indoor heat exchanger; controlling the compressor to perform heating operation so as to defrost the indoor heat exchanger and clean the indoor heat exchanger; and controlling the indoor fan to operate.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the frosting is realized only through the control of the indoor fan and the electronic expansion valve; this way the frosting effect cannot be guaranteed and then the self-cleaning effect is poor.

Disclosure of Invention

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 nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a method and a device for controlling self-cleaning of an air conditioner, the air conditioner and a storage medium, so as to improve the frosting effect and further improve the self-cleaning effect.

In some embodiments, the method comprises: responding to a self-cleaning instruction of the air conditioner, and determining a target heat exchanger to be cleaned; controlling the operation parameters of the air conditioner according to the indoor and outdoor environment temperature so as to frost the target heat exchanger; after the first time, correcting the operating parameters of the air conditioner according to the temperature of the target heat exchanger and the preset frosting temperature; and controlling the target heat exchanger to execute a defrosting self-cleaning mode under the condition that the temperature of the target heat exchanger is less than or equal to the preset frosting temperature.

In some embodiments, the apparatus comprises: a processor and a memory storing program instructions, the processor being configured to, upon execution of the program instructions, perform a method for controlling air conditioner self-cleaning as previously described.

In some embodiments, the air conditioner includes: such as the aforementioned device for controlling self-cleaning of an air conditioner.

In some embodiments, the storage medium stores program instructions that, when executed, perform a method for controlling self-cleaning of an air conditioner as described above.

The method, the device, the air conditioner and the storage medium for controlling the self-cleaning of the air conditioner, which are provided by the embodiment of the disclosure, can realize the following technical effects:

when the air conditioner is self-cleaned, the operating parameters of the air conditioner are controlled by combining the indoor and outdoor ambient temperatures; so that the frosting of the heat exchanger accords with the actual environmental parameters. And then, correcting the operating parameters of the air conditioner according to the temperature of the target heat exchanger and the preset frosting temperature so as to enable the temperature of the target heat exchanger to meet the preset frosting temperature. Then defrosting and self-cleaning are carried out. Therefore, the frosting condition of the air conditioner is adjusted by combining with the actual environmental parameters, so that the frosting degree meets the requirement of self-cleaning. Thereby improving the self-cleaning effect.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic diagram of a method for controlling self-cleaning of an air conditioner according to an embodiment of the present disclosure;

fig. 2 is a schematic diagram of another method for controlling self-cleaning of an air conditioner according to an embodiment of the present disclosure;

fig. 3 is a schematic diagram of another method for controlling self-cleaning of an air conditioner according to an embodiment of the present disclosure;

fig. 4 is a schematic diagram of another method for controlling self-cleaning of an air conditioner according to an embodiment of the present disclosure;

fig. 5 is a schematic diagram of another method for controlling self-cleaning of an air conditioner according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of an apparatus for controlling self-cleaning of an air conditioner according to an embodiment of the present disclosure;

fig. 7 is a schematic diagram of another apparatus for controlling self-cleaning of an air conditioner according to an embodiment of the present disclosure.

Detailed Description

So that the manner in which the features and advantages of the embodiments of the present disclosure can be understood in detail, a more particular description of the embodiments of the disclosure, briefly summarized above, may be had by reference to the appended drawings, which are included to illustrate, but are not intended to limit the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and claims of the embodiments of the disclosure and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged as appropriate for the embodiments of the disclosure described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. E.g., a and/or B, represents: a or B, or A and B.

The term "correspond" may refer to an association or binding relationship, and a corresponds to B refers to an association or binding relationship between a and B.

In the embodiment of the present disclosure, the terminal device is an electronic device with a wireless connection function, and the terminal device may be in communication connection with the intelligent household appliance device by connecting to the internet, or may be in communication connection with the intelligent household appliance device directly by means of bluetooth, wifi, and the like. In some embodiments, the terminal device is, for example, a mobile device, a computer, or a vehicle-mounted device built in a floating car, or any combination thereof. The mobile device may include, for example, a cell phone, a smart home device, a wearable device, a smart mobile device, a virtual reality device, or the like, or any combination thereof, wherein the wearable device includes, for example: smart watches, smart bracelets, pedometers, and the like.

In the embodiment of the disclosure, the air conditioner may be an on-hook air conditioner, a floor air conditioner or a window air conditioner.

Referring to fig. 1, an embodiment of the present disclosure provides a method for controlling self-cleaning of an air conditioner, including:

and S101, responding to a self-cleaning instruction of the air conditioner by the processor, and determining a target heat exchanger to be cleaned.

And S102, controlling the running parameters of the air conditioner by the processor according to the indoor and outdoor ambient temperatures so as to frost the target heat exchanger.

And S103, after the first time period, the processor corrects the operating parameters of the air conditioner according to the temperature of the target heat exchanger and the preset frosting temperature.

And S104, controlling the target heat exchanger to execute a defrosting self-cleaning mode by the processor under the condition that the temperature of the target heat exchanger is less than or equal to the preset frosting temperature.

Here, the self-cleaning instruction of the air conditioner may be an instruction issued by a user through a terminal device, a remote controller, or the like. Or, the air conditioning system may automatically detect the degree of contamination of the heat exchanger, and then determine an instruction to be automatically issued when self-cleaning is required based on the degree of contamination. Further, a target heat exchanger to be cleaned is determined. For the indoor side heat exchanger and the outdoor side heat exchanger, the operation modes of the air conditioning system are different during self-cleaning. Specifically, when the outdoor side heat exchanger is self-cleaned, the air conditioning system operates a heating mode to frost the outdoor side heat exchanger. And then, reversing a four-way valve of the air conditioning system, and enabling a high-temperature and high-pressure refrigerant of the compressor to flow into the outdoor heat exchanger for defrosting to realize self-cleaning of the outdoor heat exchanger. When the indoor side heat exchanger is self-cleaning, the air conditioning system operates in a cooling mode to frost the indoor side heat exchanger. Then the four-way valve of the air conditioning system changes the direction to defrost the indoor side heat exchanger, and self-cleaning of the indoor side heat exchanger is achieved. In addition, because the indoor and outdoor environments are different, when the frosting control is performed on the indoor side and the outdoor side, the control parameters of the air conditioning system are also different. Therefore, it is necessary to determine whether the target heat exchanger to be cleaned is a heat exchanger on the outdoor side or a heat exchanger on the indoor side.

And then, controlling the operation parameters of the air conditioner to frost the target heat exchanger. In the embodiment of the disclosure, the target heat exchanger frosting control is divided into two steps, and the first step is coarse adjustment. Namely, the operation parameters of the air conditioner are controlled according to the indoor and outdoor ambient temperatures. Specifically, the matched operating parameters may be determined based on the current indoor and outdoor ambient temperatures. And controlling the air conditioner to operate according to the determined operation parameters. The indoor and outdoor ambient temperatures can be divided into different intervals, and each interval corresponds to a corresponding air conditioner operation parameter. Thus, the target heat exchanger enters the frosting stage through rough adjustment. In addition, at the initial stage of the operation of the air conditioner, the working state is not a stable state, and the frosting control is carried out in a coarse adjustment mode, so that the stability of the system is improved. After the first time period, the frosting control is carried out in the second step. Namely, the operation parameters of the air conditioner are corrected according to the temperature of the target heat exchanger and the preset frosting temperature. The first time period may be the time required for the air conditioner to start to stably operate according to the operation parameters, or the time required for the air conditioner to operate until the temperature of the coil of the target heat exchanger is low, such as 0-5 ℃. In addition, the operation parameter of the air conditioner may be modified by increasing an operation frequency of the compressor among the operation parameters when the temperature of the target heat exchanger is greater than a preset frosting temperature. Or when the temperature of the target heat exchanger is higher than the preset frosting temperature, the opening degree of the electronic expansion valve in the operation parameters is adjusted to be small. It can be understood that when the temperature of the target heat exchanger is less than or equal to the preset frosting temperature, the frosting of the target heat exchanger is indicated to meet the self-cleaning requirement. At this time, the control target heat exchanger performs defrosting self-cleaning. Namely, the four-way valve is controlled to change direction without fine adjustment.

By adopting the method for controlling the self-cleaning of the air conditioner, the operation parameters of the air conditioner are controlled by combining the indoor and outdoor ambient temperatures when the air conditioner is self-cleaned. So that the frosting control of the heat exchanger conforms to the actual environmental parameters. And correcting the operating parameters of the air conditioner according to the temperature of the target heat exchanger and the preset frosting temperature. And enabling the temperature of the target heat exchanger to meet the preset frosting temperature so as to carry out defrosting self-cleaning. Therefore, the frosting condition of the air conditioner is adjusted by combining with actual environmental parameters, so that the frosting degree meets the self-cleaning requirement. Thereby improving the self-cleaning effect.

Optionally, in step S102, the processor controls an operation parameter of the air conditioner according to the indoor and outdoor ambient temperatures, including:

and the processor determines the target operation frequency of the compressor and the target opening degree of the electronic expansion valve according to the preset relation between the indoor and outdoor environment temperature and the air conditioner operation parameters.

The processor controls the compressor and the electronic expansion valve to execute the target parameters.

Here, after the big data is collected and analyzed, the corresponding relation between the indoor and outdoor ambient temperatures and the air conditioner operation parameters can be established. Or the frosting degree corresponding to the air conditioner operation parameters under different working conditions can be simulated through tests. And then the corresponding relation between the indoor and outdoor ambient temperatures and the air conditioner operation parameters is established. And then, storing the corresponding relation as a preset relation on a cloud server or an air conditioner. Then, when the self-cleaning instruction is executed, indoor and outdoor ambient temperatures are detected. And determining matched air conditioner operation parameters by calling the preset relation table look-up and controlling the air conditioner to execute. In addition, in the embodiment of the disclosure, in order to enable the target heat exchanger to be frosted effectively, the compressor and the electronic expansion valve of the air conditioner are adjusted at the same time in the coarse adjustment stage. Thus, quick frosting and efficiency improvement are facilitated. As an example, the preset relationship can be seen in table 1 below.

TABLE 1

In the table, tai is the indoor ambient temperature, tao is the indoor ambient temperature, f _ij Frequency of the compressor, k _ij The opening degree of the electronic expansion valve. For example, f ₁₁ The value can be 28Hz ₁₁ Can take on valuesStep 480.

With reference to fig. 2, another method for controlling self-cleaning of an air conditioner according to an embodiment of the present disclosure includes:

S131, after the first time, under the condition that the temperature of the target heat exchanger is greater than the preset frosting temperature, the processor corrects the operation parameters of the air conditioner according to the difference value between the temperature of the target heat exchanger and the preset frosting temperature.

Here, after the first-step rough frost formation control is finished, the temperature of the target heat exchanger is detected. And comparing the temperature of the target heat exchanger with the preset frosting temperature, and if the temperature of the target heat exchanger is higher than the preset frosting temperature, indicating that the preset frosting temperature is not reached. At this time, the operation parameters of the air conditioner need to be corrected. Specifically, the correction is performed based on the difference between the two. Generally, the larger the difference, the larger the correction value for the air conditioning operating parameter. In this way, it is facilitated to rapidly lower the temperature of the target heat exchanger to the preset frosting temperature. Meanwhile, the control precision is improved. The preset frosting temperature refers to the frosting temperature of the coil pipe of the target heat exchanger, and the value range of the preset frosting temperature is-2 ℃ to-8 ℃.

In addition, if the temperature of the target heat exchanger is less than or equal to the preset frosting temperature, it indicates that the temperature of the target heat exchanger meets the frosting requirement. In this case, the defrosting of the target heat exchanger can be controlled without correcting the operating parameters of the air conditioner. In some embodiments, when the temperature of the target heat exchanger is less than or equal to the preset frosting temperature, the operation parameter of the air conditioner may be maintained for a second time period, and then the target heat exchanger is controlled to execute the defrosting self-cleaning mode. Here, the operation parameter of the air conditioner is continuously maintained for the second period of time, which helps stabilize the temperature of the target heat exchanger. I.e. the temperature of the target heat exchanger is maintained below the preset frosting temperature.

Optionally, in step S131, the processor corrects an operating parameter of the air conditioner according to a difference between the temperature of the target heat exchanger and a preset frosting temperature, including:

in the case where the difference is greater than or equal to the first threshold, the processor increases the operating frequency of the compressor.

And in the case that the difference value is smaller than the first threshold value, the processor reduces the opening degree of the electronic expansion valve.

In the embodiment of the present disclosure, a first threshold is set, and the magnitude of the difference is defined. And when the difference value is larger than or equal to the first threshold value, the difference value between the temperature of the target heat exchanger and the preset frosting temperature is larger. In this case, it is preferable to increase the operating frequency of the compressor. Thereby reducing the temperature difference between the two and having a faster adjustment rate. And when the operating frequency of the compressor is at the upper regulation limit, the opening degree of the electronic expansion valve is reduced. Likewise, when the difference is less than the first threshold, it indicates that the difference between the temperature of the target heat exchanger and the preset frosting temperature is small. At this time, the opening degree of the electronic expansion valve can be finely adjusted, so that the temperature difference between the electronic expansion valve and the electronic expansion valve is reduced. That is, the opening degree of the electronic expansion valve is preferentially adjusted, and after the opening degree of the electronic expansion valve is adjusted to the minimum opening degree, the operation frequency of the compressor is adjusted. Furthermore, the first threshold may take a value of 5 ℃.

With reference to fig. 3, another method for controlling self-cleaning of an air conditioner according to an embodiment of the present disclosure includes:

and S101, the processor responds to a self-cleaning instruction of the air conditioner and determines a target heat exchanger to be cleaned.

And S103, after the first time, the processor corrects the operating parameters of the air conditioner according to the temperature of the target heat exchanger and the preset frosting temperature.

And S141, under the condition that the temperature of the target heat exchanger is less than or equal to the preset frosting temperature, the processor controls the target fan corresponding to the target heat exchanger to operate at the highest rotating speed, and controls the air deflector to exhaust air at the maximum air outlet angle.

Here, when the target heat exchanger is controlled to defrost, not only the four-way valve of the air conditioner needs to be controlled to change direction, but also the air outlet parameters corresponding to the target heat exchanger are needed. The air outlet parameters comprise air outlet speed and air outlet angle. In order to improve defrosting efficiency, the target fan is controlled to operate at the maximum rotating speed, and the air deflector blows air at the maximum air outlet angle.

With reference to fig. 4, another method for controlling self-cleaning of an air conditioner according to an embodiment of the present disclosure includes:

S141', in case that the temperature of the target heat exchanger is less than or equal to a preset frosting temperature and the target heat exchanger is an indoor side heat exchanger, the sensor detects a position of an indoor user.

And S142', under the condition that the position of the user indicates that the user is in the space of the target heat exchanger, the processor controls the corresponding wind target fan to operate at the highest rotating speed, and controls the air deflector to supply air upwards.

When the target heat exchanger is an outdoor heat exchanger, the fan runs at the maximum rotating speed and the air guide plate blows air at the maximum air outlet angle according to the scheme, so that great influence on indoor users cannot be caused. When the target heat exchanger is an indoor heat exchanger, the indoor user can be affected due to the fact that the air outlet quantity is large and cold air is blown out through defrosting. Therefore, in the embodiment of the present disclosure, when the target heat exchanger is an indoor side heat exchanger, whether a user exists indoors or not may be detected. If no user exists, the defrosting control can be carried out according to the scheme. If a user is present, the user's location is detected. And judging whether the user and the target heat exchanger are in the same space. If so, controlling the indoor fan to operate at the highest rotating speed, and controlling the air deflector to supply air upwards. Therefore, the defrosting efficiency can be ensured, and the direct-blowing user can be avoided.

Referring to fig. 5, another method for controlling self-cleaning of an air conditioner according to an embodiment of the present disclosure includes:

And S205, controlling the air outlet parameters corresponding to the target heat exchanger by the processor so as to enable the heat exchange air quantity of the target heat exchanger and the environment to be the lowest.

And S104, controlling the target heat exchanger to execute a defrosting self-cleaning mode by the processor under the condition that the temperature of the target heat exchanger reaches the preset frosting temperature.

In the embodiment of the disclosure, before controlling the target heat exchanger to frost, the air outlet parameter of the air conditioner on the side where the target heat exchanger is located needs to be adjusted. Namely, when the target heat exchanger is an indoor heat exchanger, the air outlet parameters of the indoor unit are adjusted. And when the target heat exchanger is an outdoor heat exchanger, adjusting the air outlet parameters of the outdoor unit. Specifically, the rotating speed of the fan is reduced, and the air outlet angle is reduced. Therefore, the heat exchange air quantity is ensured to be minimum, and the heat of the low-temperature refrigerant in the target heat exchanger absorbed in the air is reduced. Contributing to the frosting of the target heat exchanger.

Optionally, in step S205, the controlling, by the processor, the air outlet parameter corresponding to the target heat exchanger includes:

the processor controls the rotating speed of a fan corresponding to the target heat exchanger to be adjusted to a mute wind level, and the air outlet angle of the air deflector is the minimum angle.

Here, the wind speed of the mute windshield is greater than or equal to the minimum wind speed of the fan. The air outlet angle of the air deflector is the minimum angle. Therefore, on one hand, the heat exchange air volume can be reduced, and the target heat exchange frosting rate is improved. On the other hand, the heat exchange efficiency is prevented from being reduced after the fan is stopped and the air guide plate is closed. The refrigerant temperature is too low, and the gaseous refrigerant flowing into the compressor carries liquid refrigerant.

Referring to fig. 6, an embodiment of the present disclosure provides an apparatus for controlling self-cleaning of an air conditioner, which includes a determination module 21, a first control module 22, a correction module 23, and a second control module 24. The determination module 21 is configured to respond to a self-cleaning instruction of the air conditioner and determine a target heat exchanger to be cleaned. The first control module 22 is configured to control an operating parameter of the air conditioner to frost a target heat exchanger according to the indoor and outdoor ambient temperatures. The correction module 23 is configured to correct the operation parameter of the air conditioner according to the temperature of the target heat exchanger and the preset frosting temperature after the first time period. The second control module 24 is configured to control the target heat exchanger to perform the defrosting self-cleaning mode if the temperature of the target heat exchanger is less than or equal to a preset frosting temperature.

By adopting the device for controlling the self-cleaning of the air conditioner, the running parameters of the air conditioner are controlled by combining the indoor and outdoor ambient temperatures when the air conditioner is self-cleaned. So that the frosting control of the heat exchanger conforms to the actual environmental parameters. And correcting the operating parameters of the air conditioner according to the temperature of the target heat exchanger and the preset frosting temperature. And enabling the temperature of the target heat exchanger to meet the preset frosting temperature so as to carry out defrosting self-cleaning. Therefore, the frosting condition of the air conditioner is adjusted by combining with the actual environmental parameters, so that the frosting meets the self-cleaning requirement. Thereby improving the self-cleaning effect.

As shown in fig. 7, an embodiment of the present disclosure provides an apparatus for controlling self-cleaning of an air conditioner, which includes a processor (processor) 100 and a memory (memory) 101. Optionally, the apparatus may also include a Communication Interface (Communication Interface) 102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via a bus 103. The communication interface 102 may be used for information transfer. The processor 100 may call logic instructions in the memory 101 to perform the method for controlling the self-cleaning of the air conditioner of the above-described embodiment.

In addition, the logic instructions in the memory 101 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.

The memory 101 is used as a computer readable storage medium for storing software programs, computer executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes functional applications and data processing by executing program instructions/modules stored in the memory 101, that is, implements the method for controlling the self-cleaning of the air conditioner in the above-described embodiment.

The memory 101 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the memory 101 may include a high-speed random access memory, and may also include a nonvolatile memory.

The embodiment of the disclosure provides an air conditioner, which comprises the device for controlling self-cleaning of the air conditioner.

Embodiments of the present disclosure provide a storage medium storing computer-executable instructions configured to perform the above-described method for controlling self-cleaning of an air conditioner.

The storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.

The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.

The above description and drawings sufficiently illustrate embodiments of the disclosure 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. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising one of 8230," does not exclude the presence of additional like elements in a process, method or device comprising the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosure, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.

Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Claims

1. A method for controlling self-cleaning of an air conditioner, comprising:

responding to a self-cleaning instruction of the air conditioner, and determining a target heat exchanger to be cleaned;

controlling the operation parameters of the air conditioner according to the indoor and outdoor environment temperature so as to frost the target heat exchanger;

after the first time, correcting the operating parameters of the air conditioner according to the temperature of the target heat exchanger and the preset frosting temperature;

and controlling the target heat exchanger to execute a defrosting self-cleaning mode under the condition that the temperature of the target heat exchanger is less than or equal to the preset frosting temperature.

2. The method of claim 1, wherein the operating parameters of the air conditioner include an operating frequency of a compressor and an opening degree of an electronic expansion valve; the operation parameters of the air conditioner are controlled according to the indoor and outdoor environment temperature, and the operation parameters comprise:

determining a target operation frequency of a compressor and a target opening degree of an electronic expansion valve according to a preset relation between indoor and outdoor environment temperatures and air conditioner operation parameters;

and controlling the compressor and the electronic expansion valve to execute the target parameters.

3. The method as claimed in claim 1, wherein the modifying the operation parameter of the air conditioner according to the temperature of the target heat exchanger and the preset frosting temperature comprises:

and correcting the operating parameters of the air conditioner according to the difference value between the temperature of the target heat exchanger and the preset frosting temperature under the condition that the temperature of the target heat exchanger is greater than the preset frosting temperature.

4. The method of claim 3, wherein the operating parameters of the air conditioner include an operating frequency of a compressor and an opening degree of an electronic expansion valve; the correcting the operating parameters of the air conditioner according to the difference value between the temperature of the target heat exchanger and the preset frosting temperature comprises the following steps:

in the case that the difference value is greater than or equal to a first threshold value, increasing the operating frequency of the compressor;

and under the condition that the difference value is smaller than the first threshold value, the opening degree of the electronic expansion valve is reduced.

5. The method of claim 1, wherein the control-target heat exchanger performs a defrost self-cleaning mode comprising:

controlling a target fan corresponding to the target heat exchanger to run at the highest rotating speed; and the number of the first and second antennas is increased,

and controlling the air deflector corresponding to the target heat exchanger to exhaust air at the maximum air outlet angle.

6. The method of claim 1, wherein the control-target heat exchanger performs a defrost self-cleaning mode comprising:

detecting the position of an indoor user under the condition that the target heat exchanger is an indoor side heat exchanger;

and under the condition that the position of the user indicates that the user is in the space of the target heat exchanger, controlling the corresponding wind target fan to operate at the highest rotating speed, and controlling the air deflector to supply air upwards.

7. The method of any one of claims 1 to 6, wherein after determining the target heat exchanger to be cleaned, further comprising:

and controlling the air outlet parameters corresponding to the target heat exchanger so as to ensure that the heat exchange air quantity between the target heat exchanger and the environment is the lowest.

8. An apparatus for controlling self-cleaning of an air conditioner, comprising a processor and a memory storing program instructions, characterized in that the processor is configured to execute the method for controlling self-cleaning of an air conditioner according to any one of claims 1 to 7 when executing the program instructions.

9. An air conditioner characterized by comprising the apparatus for controlling self-cleaning of an air conditioner as claimed in claim 8.

10. A storage medium storing program instructions which, when executed, perform a method for controlling self-cleaning of an air conditioner according to any one of claims 1 to 7.