CN112524778A - Method and device for self-cleaning of air conditioner evaporator and air conditioner - Google Patents
Method and device for self-cleaning of air conditioner evaporator and air conditioner Download PDFInfo
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- CN112524778A CN112524778A CN202011308948.5A CN202011308948A CN112524778A CN 112524778 A CN112524778 A CN 112524778A CN 202011308948 A CN202011308948 A CN 202011308948A CN 112524778 A CN112524778 A CN 112524778A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 62
- 238000005057 refrigeration Methods 0.000 claims abstract description 15
- 238000010257 thawing Methods 0.000 claims abstract description 14
- 238000007710 freezing Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 1
- 230000009467 reduction Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 21
- 238000010586 diagram Methods 0.000 description 8
- 239000000428 dust Substances 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000004590 computer program Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
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- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- 230000002035 prolonged effect Effects 0.000 description 1
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- 230000001052 transient effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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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
- F24F11/30—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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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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
- F24F11/88—Electrical aspects, e.g. circuits
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Thermal Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application relates to the technical field of intelligent air conditioners and discloses a method for self-cleaning of an air conditioner evaporator. And controlling the evaporator to enter a self-cleaning mode when the air conditioner is in a refrigerating state, and closing an air inlet of the air conditioner when the evaporator enters the self-cleaning mode. At the moment, the evaporator enters a frosting treatment stage, and because the air inlet of the air conditioner is closed, the evaporator cannot exchange heat with the outside, and the surface of the evaporator frosts along with the continuous reduction of the surface temperature of the evaporator. And when the surface of the evaporator is frosted, the air inlet of the air conditioner is opened, and the evaporator enters a defrosting treatment stage. As the evaporator can exchange heat with the outside, the surface of the evaporator absorbs heat and defrosts. And when detecting evaporator surface frost, finish the automatically cleaning mode, this application makes the user experience air conditioner refrigeration mode at air conditioner self-cleaning in-process. The application also discloses a device and an air conditioner for automatically cleaning the air conditioner evaporator.
Description
Technical Field
The application relates to the technical field of intelligent air conditioners, in particular to a method and a device for self-cleaning of an air conditioner evaporator and an air conditioner.
Background
Air conditioning products typically employ finned tube heat exchangers as evaporators. After a certain period of use, dust in the room air can flow through the evaporator along with the incoming air, and part of dust particles can adhere to the surfaces of the wet evaporator fins to form air-side dirt, which inevitably influences the heat transfer and the pressure drop of the evaporator, so that the due performance of the evaporator is reduced, and bacteria are easily and quickly bred on the surfaces of the heat exchanger. The breeding and gathering of bacteria can generate various viscous secretions, more dust is adsorbed on the surface of the evaporator, and a vicious circle is formed. Therefore, the indoor unit of the air conditioner needs to be cleaned frequently in the using process.
In the prior art, the indoor fan can be turned off, the compressor is controlled to operate at a fixed frequency, so that the evaporator enters a frosting state, and then after a set time, the indoor fan is turned on, so that the compressor is controlled to stop operating, so that the evaporator enters a frosting state. Therefore, the surface of the evaporator is self-cleaned, but the indoor fan is closed in the frosting process in the control mode, so that a user cannot normally experience the refrigerating effect of the air conditioner, and the user experience feeling 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 self-cleaning of an air conditioner evaporator and an air conditioner, and aims to solve the technical problem that a user cannot experience a refrigeration mode of the air conditioner in a self-cleaning process.
In some embodiments, the method comprises: controlling the evaporator to enter a self-cleaning mode in the refrigeration state of the air conditioner; under the condition that the evaporator enters a self-cleaning mode, closing an air inlet of the air conditioner, and enabling the evaporator to enter a frosting treatment stage; when the surface of the evaporator is frosted, opening an air inlet of the air conditioner, and enabling the evaporator to enter a defrosting treatment stage; and when the frost on the surface of the evaporator is detected, exiting and ending the self-cleaning mode.
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 the aforementioned method for air conditioner evaporator self-cleaning.
In some embodiments, an air conditioner includes: the self-cleaning device for the air conditioner evaporator is characterized in that the self-cleaning device comprises a base.
The method and the device for self-cleaning of the air conditioner evaporator and the air conditioner provided by the embodiment of the disclosure can realize the following technical effects: the application relates to the technical field of intelligent air conditioners and discloses a method for self-cleaning of an air conditioner evaporator. And controlling the evaporator to enter a self-cleaning mode when the air conditioner is in a refrigerating state, and closing an air inlet of the air conditioner when the evaporator enters the self-cleaning mode. At the moment, the evaporator enters a frosting treatment stage, and because the air inlet of the air conditioner is closed, the evaporator cannot exchange heat with the outside, and the surface of the evaporator frosts along with the continuous reduction of the surface temperature of the evaporator. And when the surface of the evaporator is frosted, the air inlet of the air conditioner is opened, and the evaporator enters a defrosting treatment stage. As the evaporator can exchange heat with the outside, the surface of the evaporator absorbs heat and defrosts. And when detecting evaporator surface frost, finish the automatically cleaning mode, this application makes the user experience air conditioner refrigeration mode at air conditioner self-cleaning in-process. And the user satisfaction is improved.
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 self-cleaning an air conditioner evaporator according to an embodiment of the present disclosure;
fig. 2 is a schematic view of an apparatus for self-cleaning an evaporator of an air conditioner according to an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. 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 in the claims, and the above-described drawings of embodiments of the present disclosure, 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 under appropriate circumstances such that embodiments of the present disclosure described herein may be made. 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. For example, a and/or B, represents: a or B, or A and B.
Fig. 1 is a schematic diagram of a method for self-cleaning an air conditioner evaporator according to an embodiment of the present disclosure, and in conjunction with fig. 1, the embodiment of the present disclosure provides a method for self-cleaning an air conditioner evaporator, including:
and S11, controlling the evaporator to enter a self-cleaning mode in the air-conditioning refrigeration state.
And S12, closing the air inlet of the air conditioner, and enabling the evaporator to enter a frosting treatment stage.
And S13, when the surface of the evaporator is frosted, opening an air inlet of the air conditioner, and enabling the evaporator to enter a defrosting treatment stage.
S14, when the frost on the evaporator surface is detected, the self-cleaning mode is ended.
The air conditioner in the embodiment of the present disclosure may be a hanging type air conditioner, a cabinet type air conditioner, etc., or any combination thereof.
In step 11, the air-conditioning cooling mode is started, so that the evaporator is controlled to enter the self-cleaning mode in the cooling state of the air conditioner.
In this scheme, air conditioner refrigerating system includes compressor, condenser, choke valve and evaporimeter. After the air conditioner refrigeration mode is started, the compressor compresses the gaseous refrigerant into a high-temperature high-pressure gaseous state, the gaseous refrigerant is sent to the condenser of the outdoor unit and is cooled into a high-temperature high-pressure liquid refrigerant, the liquid refrigerant is throttled and reduced in pressure by the throttle valve, the liquid refrigerant is changed into a low-temperature low-pressure gas-liquid mixture, the low-temperature low-pressure gas-liquid mixture enters the indoor unit to absorb heat in indoor air and is vaporized to become a gaseous state, and finally the gaseous refrigerant returns to the compressor to be continuously compressed and continuously circulates. The self-cleaning mode of the air conditioner includes a frosting process and a defrosting process. In the whole air conditioner self-cleaning process, the compressor runs always according to the fixed frequency, so that a user can carry out air conditioner self-cleaning in the refrigerating mode running process, the user can enjoy the environment comfort brought by air conditioner refrigeration in the air conditioner self-cleaning process, and the user experience is enhanced.
In step 12, the air inlet of the air conditioner is closed, and the evaporator enters a frosting treatment stage.
In this scheme, closed the air intake of air conditioner, the evaporimeter can't carry out the heat exchange with the external world. As the temperature of the evaporator surface decreases, the evaporator surface frosts. So that the evaporator enters the frosting treatment stage.
In one example, a reference value of the dust deposition parameter on the surface of the evaporator may be preset in advance, and the air conditioner may be controlled to close the air inlet when the dust deposition parameter on the surface of the evaporator is detected to exceed the preset reference value.
In another example, when the evaporator of the air conditioner needs to be self-cleaned, the time for the evaporator to be self-cleaned is preset in advance, and when the time is reached, the air conditioner is controlled to close the air inlet.
The two modes can trigger the air conditioner to close the air inlet in the refrigeration state of the air conditioner, so that the evaporator is controlled to enter a frosting treatment stage when the air conditioner reaches a trigger condition. The interference caused by random triggering is avoided, the influence of frequent operation of the wind shield caused by repeated closing of the air inlet on the service life of the wind shield is effectively prevented, the resource waste is avoided, and the electric energy is effectively saved.
In step 13, when the frosting on the surface of the evaporator is detected, the air inlet of the air conditioner is opened, and the evaporator enters a defrosting treatment stage.
In this case, as the temperature of the evaporator surface decreases, the evaporator surface frosts. And when detecting that the surface of the evaporator is frosted, opening an air inlet of the air conditioner so as to enable the evaporator to exchange heat with the outside. As the temperature of the evaporator surface continues to rise, the evaporator surface defrosts. So that the evaporator enters the defrosting treatment stage.
In step 14, the self-cleaning mode is ended when frost on the evaporator surface is detected.
In this scenario, as the evaporator surface temperature increases, the evaporator begins to defrost. And when the frosting on the surface of the evaporator is detected, ending the self-cleaning mode to finish the self-cleaning process of the evaporator. The dust on the surface of the evaporator is washed and cleaned through the frosting and defrosting processes on the surface of the evaporator, so that the dust on the surface of the evaporator is prevented from being deposited and affecting the use of the air conditioner. The refrigeration effect can be experienced by a user in the self-cleaning state of the air conditioner, and the experience of the user is enhanced.
Optionally, in order to form frost on the surface of the evaporator, in the present solution, the frost formation treatment stage includes: detecting the temperature of an inner coil of the evaporator; and when the temperature of the inner coil pipe is not higher than the preset temperature, controlling the evaporator to operate for a first preset time.
In the scheme, the preset temperature can be preset in advance according to different working conditions. Specifically, the preset temperature was set to-5 ℃. The temperature of the coil pipe in the evaporator is detected through the inner coil pipe temperature sensor, when the temperature of the inner coil pipe is detected to be-7 ℃, the current temperature of the inner coil pipe is determined to be lower than the preset temperature, and the evaporator is controlled to operate for a first preset time. Wherein, the first preset duration can be determined according to the detected temperature of the inner coil. The lower the detected temperature of the inner coil, the less time is required for frosting, and the shorter the first preset time period for controlling the evaporator to operate is. With this scheme, can be according to different operating modes, the length of time of operation of control evaporimeter to make evaporimeter surface frost.
Optionally, in order to accelerate the frost formation on the surface of the evaporator, after the air inlet is closed, the rotating speed of the indoor fan of the air conditioner is reduced.
In this scheme, according to user's needs, the rotational speed of the indoor fan of air conditioner can be predetermine to the technical staff under the air conditioner refrigeration state. Furthermore, in order to reduce the air flow rate on the surface of the evaporator, after the air inlet of the air conditioner is closed, the rotating speed of the indoor fan can be reduced on the basis of the preset rotating speed, so that the frosting speed on the surface of the evaporator is increased.
Optionally, in order to defrost the evaporator surface, in this embodiment, the defrosting stage includes controlling the operation of the evaporator for a second preset time period to determine that the evaporator surface is frosted.
Specifically, the second preset time period may be preset according to the frosting condition of the surface of the evaporator. After the air inlet of the air conditioner is opened, the surface temperature of the evaporator is continuously increased along with heat exchange between the evaporator and the outside, and after the evaporator runs for a second preset time, frosting on the surface of the evaporator is determined. By setting the second preset time length, the condition that residual frost still exists on the surface of the evaporator after the self-cleaning process is ensured, and the frosting time is effectively determined.
Optionally, after the air inlet is opened, the rotating speed of the indoor fan of the air conditioner is increased in order to accelerate the defrosting of the surface of the evaporator.
In this scheme, the rotational speed of the indoor fan of air conditioner can be predetermine to the technical staff under the air conditioner refrigeration state, in order to improve the air flow rate on evaporimeter surface, after opening the air intake, can improve the rotational speed of indoor fan on the basis of predetermineeing the rotational speed to accelerate the speed of evaporimeter surface defrosting.
Alternatively, in order to secure stability of the indoor temperature, in the embodiment of the present disclosure, in the self-cleaning mode, the compressor is controlled to operate the cooling mode at a preset frequency.
In the scheme, the running frequency of the compressor under different refrigeration states can be preset in advance when the air conditioner leaves a factory. By operating the refrigeration mode at a preset frequency in the self-cleaning process of the air conditioner, the comfort level of a user is improved, and the user experience is enhanced.
Optionally, after detecting frosting on the surface of the evaporator, the method further includes performing a self-cleaning mode in a cycle when the evaporator does not meet a preset cleaning condition, in order to improve the cleaning effect on the surface of the evaporator.
In the technical scheme provided by the embodiment of the disclosure, it can be determined that the evaporator does not satisfy the preset cleaning condition through the following two ways:
in the first mode, a fouling parameter of the surface of the evaporator is detected, and when the fouling parameter of the surface of the evaporator is larger than a preset parameter value, the evaporator is determined not to meet a preset cleaning condition.
And in the second mode, the circulation frequency of the current self-cleaning process of the evaporator is obtained, and when the circulation frequency of the evaporation self-cleaning process is smaller than the preset frequency, the evaporator is determined not to meet the preset cleaning condition.
The preset parameter value and the preset times can refer to factory settings. Or, the preset is carried out in advance according to the use habits of the user. When the evaporator does not meet the preset cleaning condition, the self-cleaning mode is circularly executed, the cleaning effect on the surface of the evaporator is improved, the service life of the evaporator is prolonged, and the use by a user is facilitated.
Optionally, after the self-cleaning mode is ended, controlling the air conditioner to start an anti-freezing protection mode in order to prevent the surface temperature of the evaporator from being too low.
When the air conditioner is in a low-temperature state for refrigerating operation, the surface of the indoor evaporator is frosted, and when the temperature of the indoor heat exchanger is reduced to be below 0 ℃ and is continued for a period of time, the outdoor unit stops operating. In order to prevent the evaporator from freezing due to too low temperature, the air conditioner can be controlled to start an anti-freezing protection mode, and the damage of the air conditioner caused by the long-time low-temperature running of the air conditioner is avoided.
In practical application, under the condition of air conditioner refrigeration, whether the air conditioner meets a self-cleaning condition is determined, and under the condition that the air conditioner meets the self-cleaning condition, the evaporator is controlled to enter a self-cleaning mode. After the evaporator enters the self-cleaning mode, the air inlet of the air conditioner is closed, and at the moment, the evaporator cannot exchange heat with the indoor space. As the surface temperature of the evaporator is continuously reduced, the evaporator enters a frosting treatment stage. The frosting on the surface of the evaporator is determined by detecting the temperature of the coil and controlling the evaporator to operate for a first preset time when the temperature of the coil does not exceed a preset temperature. And then when frosting on the surface of the evaporator is detected, opening an air inlet of the air conditioner to enable the evaporator to exchange heat with the outside, enabling the evaporator to enter a defrosting treatment stage along with continuous improvement of the surface temperature of the evaporator, flushing dirt on the surface of the evaporator in the frosting process of the surface of the evaporator, determining whether the evaporator meets a preset self-cleaning condition or not after the surface of the evaporator is flushed, and circularly executing a self-cleaning mode under the condition that the evaporator does not meet the self-cleaning condition. In case the evaporator meets the self-cleaning condition, the self-cleaning process is ended. After the self-cleaning process is finished, the air conditioner is controlled to start an anti-freezing protection mode so as to prevent the air conditioner from being damaged due to the fact that the air conditioner runs for a long time in a low-temperature state.
Fig. 2 is a schematic diagram of an apparatus for self-cleaning an air conditioner evaporator according to an embodiment of the present disclosure, and in conjunction with fig. 2, an apparatus for self-cleaning an air conditioner evaporator according to an embodiment of the present disclosure 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 air conditioner evaporator self-cleaning 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, which is a computer-readable storage medium, may be used 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 self-cleaning of an air conditioner evaporator 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 self-cleaning of the evaporator of the air conditioner.
Embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions configured to perform the above-described method for air conditioner evaporator self-cleaning.
Embodiments of the present disclosure provide a computer program product comprising a computer program stored on a computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, cause the computer to perform the above-described method for air conditioner evaporator self-cleaning.
The computer-readable 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 an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises 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 disclosures, 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 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 (10)
1. A method for self-cleaning an air conditioner evaporator, comprising:
controlling the evaporator to enter a self-cleaning mode in the refrigeration state of the air conditioner;
closing an air inlet of the air conditioner, and enabling the evaporator to enter a frosting treatment stage;
when the surface of the evaporator is frosted, opening an air inlet of the air conditioner, and enabling the evaporator to enter a defrosting treatment stage;
ending the self-cleaning mode upon detection of frosting of the evaporator surface.
2. The method according to claim 1, wherein the frosting treatment stage comprises:
detecting the temperature of an inner coil of the evaporator;
and when the temperature is not higher than the preset temperature, controlling the evaporator to operate for a first preset time so as to frost on the surface of the evaporator.
3. The method of claim 1, wherein after closing the intake vent, the method further comprises:
and reducing the rotating speed of the indoor fan of the air conditioner.
4. The method according to claim 1, characterized in that said defrosting treatment phase comprises:
and controlling the operation of the evaporator for a second preset time period to determine the frosting on the surface of the evaporator.
5. The method of claim 1, wherein after opening the intake vent, the method further comprises:
and improving the rotating speed of the indoor fan of the air conditioner.
6. The method of claim 1, wherein in the self-cleaning mode, a compressor is controlled to operate the cooling mode at a preset frequency.
7. The method of any one of claims 1 to 6, wherein after detecting frosting of the evaporator surface, the method further comprises:
and when the evaporator does not meet the preset cleaning condition, circularly executing the self-cleaning mode.
8. The method of any of claims 1 to 6, wherein after ending the self-cleaning mode, the method further comprises:
and controlling the air conditioner to start an anti-freezing protection mode.
9. An apparatus for air conditioner evaporator self-cleaning, comprising a processor and a memory storing program instructions, characterized in that the processor is configured to perform the method for air conditioner evaporator self-cleaning as claimed in any one of claims 1 to 8 when executing the program instructions.
10. An air conditioner characterized by comprising the device for self-cleaning of an evaporator of an air conditioner as claimed in claim 9.
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