WO2022242142A1 - 用于空调自清洁的控制方法及装置、空调 - Google Patents

用于空调自清洁的控制方法及装置、空调 Download PDF

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Publication number
WO2022242142A1
WO2022242142A1 PCT/CN2021/138398 CN2021138398W WO2022242142A1 WO 2022242142 A1 WO2022242142 A1 WO 2022242142A1 CN 2021138398 W CN2021138398 W CN 2021138398W WO 2022242142 A1 WO2022242142 A1 WO 2022242142A1
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Prior art keywords
air conditioner
ambient temperature
self
heat exchanger
cleaning
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PCT/CN2021/138398
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English (en)
French (fr)
Inventor
吕科磊
杨文钧
Original Assignee
青岛海尔空调器有限总公司
青岛海尔空调电子有限公司
海尔智家股份有限公司
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Publication of WO2022242142A1 publication Critical patent/WO2022242142A1/zh

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G15/00—Details
    • F28G15/003—Control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G7/00—Cleaning by vibration or pressure waves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/22—Cleaning ducts or apparatus
    • 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

Definitions

  • the present application relates to the technical field of intelligent air conditioners, for example, to a control method and device for air conditioner self-cleaning, and an air conditioner.
  • the air conditioner During the heating or cooling operation of the air conditioner, dust and large particles in the outside air will enter the air conditioner and adhere to the surface of the air conditioner heat exchanger, directly affecting the heat exchange between the heat exchanger and the outside air. And affect the air quality. In order to ensure heat exchange efficiency and air quality, it is necessary to perform self-cleaning treatment on the air conditioner heat exchanger.
  • the self-cleaning operation of the air conditioner is mainly divided into the frosting stage and the defrosting stage.
  • the air conditioner in the frosting stage, the air conditioner operates in cooling mode in the early stage of frosting, and the moisture in the indoor air is condensed on the surface of the indoor heat exchanger in the form of water droplets.
  • the air conditioner increases the cooling capacity to condense the water droplets condensed on the surface of the heat exchanger in the early stage to form a frost layer, which combines with the dust on the surface of the heat exchanger and peels it off; after that, it enters the defrosting stage,
  • the air conditioner operates in heating mode, the temperature of the indoor heat exchanger coil rises, the frost layer melts, and the dust also collects in the water receiving tray along with the melted water flow, completing the self-cleaning operation.
  • Embodiments of the present disclosure provide a control method and device for self-cleaning of an air conditioner, and an air conditioner to solve the problem of defrosting by changing the operating mode of the air conditioner in the defrosting stage of the self-cleaning of the air conditioner.
  • the time is long, resulting in the overall length of the air conditioner self-cleaning operation, and the problem of poor user experience.
  • the heat exchanger of the air conditioner is provided with an ultrasonic oscillator
  • the control method for self-cleaning of the air conditioner includes: after receiving the self-cleaning instruction of the air conditioner, controlling the air conditioner to perform a self-cleaning operation and enter the self-cleaning frosting stage; In the case of frost on the surface of the heat exchanger, the ultrasonic oscillator is controlled to vibrate according to the preset vibration frequency to shake off the frost on the surface of the heat exchanger.
  • control device for air conditioner self-cleaning includes a processor and a memory storing program instructions, and the processor is configured to execute the aforementioned control method for air conditioner self-cleaning when executing the program instructions.
  • the air conditioner includes the aforementioned control device for self-cleaning of the air conditioner.
  • control method and device for air conditioner self-cleaning, and the air conditioner provided in the embodiments of the present disclosure can achieve the following technical effects:
  • control the air conditioner After receiving the self-cleaning command of the air conditioner, control the air conditioner to perform self-cleaning operation and enter the self-cleaning frosting stage, and in the case of frosting on the surface of the heat exchanger, control the ultrasonic oscillator to vibrate according to the preset vibration frequency to turn the heat exchanger The frost on the surface shakes off.
  • the frost generated on the surface of the heat exchanger during the frosting stage is vibrated off by ultrasonic waves, and there is no need to change the operating mode of the air conditioner to achieve defrosting, which can effectively shorten the overall time for the self-cleaning operation of the air conditioner. Time, so as to better improve the user experience.
  • Fig. 1 is a schematic flowchart of a control method for self-cleaning of an air conditioner provided by an embodiment of the present disclosure
  • Fig. 2 is a schematic flowchart of another control method for air conditioner self-cleaning provided by an embodiment of the present disclosure
  • Fig. 3 is a schematic structural diagram of a control device for self-cleaning of an air conditioner provided by an embodiment of the present disclosure.
  • the term "plurality” means two or more.
  • the character "/" indicates that the preceding and following objects are an "or" relationship.
  • A/B means: A or B.
  • the term “and/or” is an associative relationship describing objects, indicating that there can be three relationships.
  • a and/or B means: A or B, or, A and B, these three relationships.
  • an embodiment of the present disclosure provides a control method for self-cleaning of an air conditioner, including the following steps:
  • the air conditioner controls the air conditioner to perform the self-cleaning operation and enters the self-cleaning defrosting stage.
  • the heat exchanger in the air conditioner is self-cleaning, adjust the four-way valve of the air conditioner to control the heat exchanger in the air conditioner to enter the frosting stage.
  • the air conditioner operates in cooling mode, and the moisture in the indoor air is condensed in the form of water droplets on the indoor unit for heat exchange.
  • the air conditioner increases the cooling capacity, so that the water droplets condensed on the surface of the heat exchanger in the early stage condense into a frost layer, and the frost layer combines with the dust on the surface of the heat exchanger.
  • the outdoor heat exchanger of the air conditioner is self-cleaning, adjust the four-way valve of the air conditioner to control the outdoor heat exchanger of the air conditioner to enter the frosting stage.
  • the air conditioner increases the heating capacity in the later stage of frost condensation, so that the water droplets condensed on the surface of the heat exchanger in the early stage condense into a frost layer, and the frost layer combines with the dust on the surface of the heat exchanger.
  • the heat exchanger of the air conditioner is equipped with an ultrasonic oscillator, which generates ultrasonic vibrations to make the frost on the surface of the heat exchanger vibrate and fall off, so that the frost adsorbed by dust can be cleaned in time, and the self-cleaning and defrosting of the traditional air conditioner can be realized. stage defrost function.
  • control the air conditioner after receiving the air conditioner self-cleaning command, control the air conditioner to perform self-cleaning operation and enter the self-cleaning frosting stage, and in the case of frosting on the surface of the heat exchanger , control the ultrasonic oscillator to vibrate according to the preset vibration frequency to shake off the frost on the surface of the heat exchanger.
  • the frost generated on the surface of the heat exchanger during the frosting stage is vibrated off by ultrasonic waves, and there is no need to change the operating mode of the air conditioner to achieve defrosting, which can effectively shorten the overall time for the self-cleaning operation of the air conditioner. Time, so as to better improve the user experience.
  • control method for self-cleaning of the air conditioner also includes: before controlling the ultrasonic oscillator to vibrate according to the preset vibration frequency, obtaining the operating frequency of the compressor of the air conditioner in the self-cleaning frosting stage; determining the frequency corresponding to the operating frequency The vibration frequency is the preset vibration frequency.
  • obtaining the operating frequency of the compressor of the air conditioner in the self-cleaning defrosting stage includes: when the indoor ambient temperature is greater than or equal to the first preset temperature and the outdoor ambient temperature is greater than or equal to the second preset temperature, determining The operating frequency is the first operating frequency; when the indoor ambient temperature is less than the first preset temperature and the outdoor ambient temperature is lower than the second preset temperature, the operating frequency is determined to be the second operating frequency; wherein the first preset temperature is less than or equal to the second preset temperature, and the first operating frequency is less than the second operating frequency.
  • the value range of the first preset temperature is [10°C, 18°C], for example, 10°C, 15°C, 18°C;
  • the value range of the second preset temperature is [13°C, 20°C], for example , 13°C, 15°C, 18°C, 20°C.
  • a corresponding relationship table between the operating frequency of the compressor and the vibration frequency of the ultrasonic oscillator is established.
  • the vibration frequency of the ultrasonic oscillator is positively correlated with the operating frequency of the compressor, that is, the high vibration frequency of the ultrasonic oscillator corresponds to the high operating frequency of the compressor, and the low vibration frequency of the ultrasonic oscillator corresponds to the high operating frequency of the compressor. Low operating frequency.
  • the vibration frequency of the ultrasonic oscillator can be determined by looking up the corresponding correspondence table.
  • the higher the ambient temperature the greater the ambient humidity.
  • the ambient humidity on the surface of the heat exchanger is relatively high, and the compressor is controlled to operate at the first operating frequency (relatively low Operating frequency) operation, properly extend the frosting time of the air conditioner, so that the moisture in the indoor air can fully condense into a frost layer on the surface of the heat exchanger, improve the effect of frosting on dust absorption, thereby improving the self-cleaning effect of the air conditioner;
  • the ambient humidity on the surface of the heat exchanger is small, and the compressor is controlled to run at the second operating frequency (relatively higher operating frequency), so that the indoor air
  • the second operating frequency relatively higher operating frequency
  • control method for self-cleaning of the air conditioner further includes: after controlling the air conditioner to complete a self-cleaning operation, when the air conditioner is running stably, obtaining the ambient temperature between the heat exchanger and the fan of the air conditioner; The proportional relationship between the temperature and the preset temperature controls the air conditioner to perform a second self-cleaning operation.
  • the operating mode of the air conditioner when it is running stably can be It is a high wind speed cooling operation mode, a medium wind speed cooling operation mode or a low wind speed cooling operation mode. Since the ambient temperature between the heat exchanger and the fan of the air conditioner is greatly affected by the external environment when the air conditioner is in unstable operation (for example, the air conditioner is in the frequency release state), the ambient temperature at this time cannot accurately reflect the dust accumulation of the heat exchanger degree.
  • the heat exchanger includes an indoor heat exchanger
  • the fan includes a cross-flow fan arranged on the indoor unit of the air conditioner
  • obtaining the ambient temperature between the heat exchanger and the fan of the air conditioner includes: obtaining the temperature between the indoor heat exchanger and the cross-flow fan.
  • the first ambient temperature is determined as the ambient temperature.
  • the temperature at the air outlet of the cross-flow fan is easily affected by the temperature of the external environment, the temperature between the aluminum foils of the indoor heat exchanger cannot accurately reflect the degree of dust accumulation in the overall indoor heat exchanger, and the air volume at the casing of the cross-flow fan is relatively low. Small, blowing has little effect on the temperature here, so the first temperature detection point is set at the middle position of the cross-flow fan casing, and the middle position between the cross-flow fan casing and the indoor heat exchanger.
  • the ambient temperature is not easily affected by the external environment, and can more accurately reflect the overall dust accumulation degree of the indoor heat exchanger.
  • the heat exchanger includes an outdoor heat exchanger
  • the fan includes an axial flow fan arranged on the outdoor unit of the air conditioner; obtaining the ambient temperature between the heat exchanger and the fan of the air conditioner includes: obtaining the temperature between the outdoor heat exchanger and the axial flow fan.
  • the second ambient temperature at the second temperature detection point between the fans; wherein, the second temperature detection point is located on the fin surface of the outdoor heat exchanger; the third temperature detection point located between the outdoor heat exchanger and the axial flow fan is obtained The third ambient temperature; wherein, the third temperature detection point is located at the shaft of the axial flow fan; obtain the fourth ambient temperature located at the fourth temperature detection point between the outdoor heat exchanger and the axial flow fan; wherein, the fourth temperature The detection point is located in the middle between the fin surface of the outdoor heat exchanger and the shaft of the axial flow fan; calculate and obtain the weighted ambient temperature of the second ambient temperature, the third ambient temperature and the fourth ambient temperature; determine the weighted ambient temperature as the ambient temperature.
  • the ambient temperature between the outdoor heat exchanger and the fan of the air conditioner is greatly affected by the external environment, multiple temperature detection points are selected, and the temperature between the outdoor heat exchanger and the axial flow is determined comprehensively through the temperatures detected by multiple temperature detection points. temperature between fans.
  • the three temperature detection points are respectively set in the outdoor heat exchanger The fin surface of the outdoor heat exchanger, the shaft of the axial flow fan, and the middle position between the fin surface of the outdoor heat exchanger and the shaft of the axial flow fan. In this way, the weighted ambient temperature is obtained by using these three temperature detection points.
  • the weighted ambient temperature The size of is directly subject to the dust accumulation degree of the outdoor heat exchanger, which can more accurately reflect the overall dust accumulation degree of the outdoor heat exchanger.
  • calculating and obtaining the weighted ambient temperature of the second ambient temperature, the third ambient temperature and the fourth ambient temperature includes:
  • T is the weighted ambient temperature
  • T2 is the second ambient temperature
  • T3 is the third ambient temperature
  • T 4 is the fourth ambient temperature.
  • the temperature at the middle position between the fin surface of the outdoor heat exchanger and the shaft of the axial flow fan can accurately reflect the dust accumulation degree of the outdoor heat exchanger, and the temperature fluctuation range is relatively small, and the temperature value is relatively stable;
  • the air volume at the shaft of the flow fan is the smallest, the least affected by the wind, and the temperature value is the most stable; while the temperature at the fin surface of the outdoor heat exchanger can reflect the degree of dust accumulation in the outdoor heat exchanger. Therefore, setting the weight coefficients of the second ambient temperature, the third ambient temperature, and the fourth ambient temperature in the above manner, and calculating the weighted ambient temperature can more accurately reflect the overall dust accumulation degree of the outdoor heat exchanger.
  • controlling the air conditioner to perform a second self-cleaning operation includes: calculating the ratio of the ambient temperature to the preset temperature; when the ratio is in the first preset ratio range, controlling The air conditioner performs a second self-cleaning operation; when the ratio is within the second preset ratio range, the air conditioner is controlled to end the self-cleaning operation.
  • the preset temperature can be the temperature between the heat exchanger and the fan detected under the same stable operating conditions after the heat exchanger of the air conditioner completes a self-cleaning operation.
  • the first preset ratio range may be [0, 80%], for example, 0, 20%, 30%, 40%, 50%, 80%, and the second preset ratio range may be (80%, 100%], For example, 80%, 90%, 100%.
  • the normal heat exchange of the air conditioner has a great impact on the life and health of users; when the ratio of the ambient temperature to the preset temperature is within the second preset ratio range, it indicates that there is no dust accumulation in the heat exchanger, and the self-cleaning operation is relatively thorough this time.
  • the air conditioner is controlled to end the self-cleaning operation. In this way, the cleaning degree of the self-cleaning operation of the air conditioner can be improved.
  • an embodiment of the present disclosure provides a control method for self-cleaning of an air conditioner, including the following steps:
  • S202 Obtain the operating frequency of the compressor of the air conditioner in the self-cleaning defrosting stage, and determine the vibration frequency corresponding to the operating frequency as the preset vibration frequency.
  • the defrosting vibration generated on the surface of the heat exchanger during the defrosting stage is detached by ultrasonic waves, without changing the Defrost operation mode can effectively shorten the overall time of self-cleaning operation of the air conditioner, so as to better improve the user experience;
  • Good heat exchange with the external environment, the ambient temperature between the heat exchanger and the fan is relatively high, and when the heat exchanger accumulates a lot of dust, the heat exchanger cannot perform heat exchange with the external environment well, the heat exchanger
  • the ambient temperature between the air conditioner and the fan is relatively low, so when the air conditioner is running stably, the ambient temperature between the heat exchanger and the fan of the air conditioner can be obtained, and according to the proportional relationship between the ambient temperature and the preset temperature, it can be judged whether the air conditioner is on or off.
  • the cleaning effect of the first self-cleaning operation can be controlled to control the air conditioner to perform the
  • FIG. 3 provides a control device for air conditioner self-cleaning, including a processor (processor) 30 and a memory (memory) 31, and may also include a communication interface (Communication Interface) 32 and a bus 33.
  • the processor 30 , the communication interface 32 , and the memory 31 can communicate with each other through the bus 33 .
  • the communication interface 32 can be used for information transmission.
  • the processor 30 can call the logic instructions in the memory 31 to execute the control method for self-cleaning of the air conditioner in the above embodiments.
  • logic instructions in the above-mentioned memory 31 can be implemented in the form of software function units and can be stored in a computer-readable storage medium when sold or used as an independent product.
  • the memory 31 can be used to store software programs and computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure.
  • the processor 30 executes the program instructions/modules stored in the memory 31 to execute functional applications and data processing, that is, to realize the control method for self-cleaning of the air conditioner in the above method embodiments.
  • the memory 31 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and at least one application required by a function; the data storage area may store data created according to the use of the terminal device, and the like.
  • the memory 31 may include a high-speed random access memory, and may also include a non-volatile memory.
  • the air conditioner after receiving the air conditioner self-cleaning command, the air conditioner is controlled to perform the self-cleaning operation and enter the self-cleaning frosting stage, and in the case of frosting on the surface of the heat exchanger , control the ultrasonic oscillator to vibrate according to the preset vibration frequency to shake off the frost on the surface of the heat exchanger.
  • the frost generated on the surface of the heat exchanger during the frosting stage is vibrated off by ultrasonic waves, and there is no need to change the operating mode of the air conditioner to achieve defrosting, which can effectively shorten the overall time for the self-cleaning operation of the air conditioner. Time, so as to better improve the user experience.
  • An embodiment of the present disclosure provides an air conditioner, including the above-mentioned control device for self-cleaning of the air conditioner.
  • An embodiment of the present disclosure provides a computer-readable storage medium, which stores computer-executable instructions, and the computer-executable instructions are configured to execute the above-mentioned control method for self-cleaning of an air conditioner.
  • An embodiment of the present disclosure provides a computer program product, the computer program product includes a computer program stored on a computer-readable storage medium, the computer program includes program instructions, and when the program instructions are executed by a computer, the The computer executes the above control method for self-cleaning of the air conditioner.
  • the above-mentioned computer-readable storage medium may be a transitory computer-readable storage medium, or a non-transitory computer-readable storage medium.
  • the technical solutions of the embodiments of the present disclosure can be embodied in the form of software products, which are stored in a storage medium and include one or more instructions to make a computer device (which can be a personal computer, a server, or a network equipment, etc.) to perform all or part of the steps of the method described in the embodiments of the present disclosure.
  • the aforementioned storage medium can be a non-transitory storage medium, including: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disc, etc.
  • first element could be called a second element, and likewise, a second element could be called a first element, without changing the meaning of the description, so long as all occurrences of "first element” are renamed consistently and all occurrences of "Second component” can be renamed consistently.
  • the first element and the second element are both elements, but may not be the same element.
  • the terms used in the present application are used to describe the embodiments only and are not used to limit the claims. As used in the examples and description of the claims, the singular forms "a”, “an” and “the” are intended to include the plural forms as well unless the context clearly indicates otherwise .
  • the term “and/or” as used in this application is meant to include any and all possible combinations of one or more of the associated listed ones.
  • the term “comprise” and its variants “comprises” and/or comprising (comprising) etc. refer to stated features, integers, steps, operations, elements, and/or The presence of a component does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groupings of these.
  • an element defined by the phrase “comprising a " does not exclude the presence of additional identical elements in the process, method or apparatus comprising said element.
  • the disclosed methods and products can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units may only be a logical function division.
  • multiple units or components may be combined Or it can be integrated into another system, or some features can be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • each functional unit in the embodiments of the present disclosure may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • each block in a flowchart or block diagram may represent a module, program segment, or part of code that includes one or more Executable instructions.
  • the functions noted in the block may occur out of the order noted in the figures.
  • two blocks in succession may, in fact, be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved.
  • the operations or steps corresponding to different blocks may also occur in a different order than that disclosed in the description, and sometimes there is no specific agreement between different operations or steps.
  • each block in the block diagrams and/or flowcharts, and combinations of blocks in the block diagrams and/or flowcharts can be implemented by a dedicated hardware-based system that performs the specified function or action, or can be implemented by dedicated hardware implemented in combination with computer instructions.

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Abstract

本申请涉及智能空调技术领域，公开一种用于空调自清洁的控制方法，包括：接收到空调自清洁指令后，控制空调执行自清洁操作并进入自清洁凝霜阶段；在换热器表面凝霜的情况下，控制超声波振荡器按照预设振动频率振动以将换热器表面的凝霜振动脱落。在空调自清洁过程中，通过超声波方式将换热器表面在凝霜阶段产生的凝霜振动脱落，无需通过转变空调器的运行模式来实现化霜，可以有效缩短空调自清洁操作的整体时间，从而更好地提升用户体验。本申请还公开一种用于空调自清洁的控制装置及空调。

Description

用于空调自清洁的控制方法及装置、空调
本申请基于申请号为202110554290.4、申请日为2021年5月20日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及智能空调技术领域，例如涉及一种用于空调自清洁的控制方法及装置、空调。
背景技术
空调器制热或制冷运行过程中，外界空气中所夹杂的灰尘、大颗粒杂物等会进入空调器，附着在空调换热器的表面，直接影响到换热器与外界空气的换热，并且影响出风质量。为了保证换热效率及出风质量，需要对空调换热器进行自清洁处理。空调自清洁操作主要分为凝霜阶段和化霜阶段。相关技术中，以室内换热器自清洁为例，在凝霜阶段中，凝霜前期空调器以制冷模式运行，将室内空气中的水分以水珠的形式凝结在室内机换热器表面，凝霜后期空调器通过提高制冷量的方式，使前期凝结在换热器表面的水珠凝结成霜层，霜层与换热器表面的灰尘结合，并将其剥离；之后进入化霜阶段，空调器以制热模式运行，室内换热器盘管温度升高，霜层融化，灰尘也随着融化的水流汇集在接水盘中，完成自清洁操作。
在实现本公开实施例的过程中，发现相关技术中至少存在如下问题：在空调自清洁的化霜阶段，通过转变空调器的运行模式来实现化霜，由于化霜所需时间长，导致空调自清洁操作的整体时间拉长，用户体验较差。
发明内容
为了对披露的实施例的一些方面有基本的理解，下面给出了简单的概括。所述概括不是泛泛评述，也不是要确定关键/重要组成元素或描绘这些实施例的保护范围，而是作为后面的详细说明的序言。
本公开实施例提供了一种用于空调自清洁的控制方法及装置、空调，以解决目前在空调自清洁的化霜阶段，通过转变空调器的运行模式来实现化霜，由于化霜所需时间长，导致空调自清洁操作的整体时间拉长，用户体验较差的问题。
在一些实施例中，空调的换热器设置有超声波振荡器，用于空调自清洁的控制方法 包括：接收到空调自清洁指令后，控制空调执行自清洁操作并进入自清洁凝霜阶段；在换热器表面凝霜的情况下，控制超声波振荡器按照预设振动频率振动以将换热器表面的凝霜振动脱落。
在一些实施例中，用于空调自清洁的控制装置包括处理器和存储有程序指令的存储器，处理器被配置为在执行程序指令时，执行前述用于空调自清洁的控制方法。
在一些实施例中，空调包括前述用于空调自清洁的控制装置。
本公开实施例提供的用于空调自清洁的控制方法及装置、空调，可以实现以下技术效果：
在接收到空调自清洁指令后，控制空调执行自清洁操作并进入自清洁凝霜阶段，并在换热器表面凝霜的情况下，控制超声波振荡器按照预设振动频率振动以将换热器表面的凝霜振动脱落。这样，在空调自清洁过程中，通过超声波方式将换热器表面在凝霜阶段产生的凝霜振动脱落，无需通过转变空调器的运行模式来实现化霜，可以有效缩短空调自清洁操作的整体时间，从而更好地提升用户体验。
以上的总体描述和下文中的描述仅是示例性和解释性的，不用于限制本申请。
附图说明
一个或多个实施例通过与之对应的附图进行示例性说明，这些示例性说明和附图并不构成对实施例的限定，附图中具有相同参考数字标号的元件示为类似的元件，附图不构成比例限制，并且其中：
图1是本公开实施例提供的一个用于空调自清洁的控制方法的流程示意图；
图2是本公开实施例提供的另一个用于空调自清洁的控制方法的流程示意图；
图3是本公开实施例提供的一个用于空调自清洁的控制装置的结构示意图。
具体实施方式
为了能够更加详尽地了解本公开实施例的特点与技术内容，下面结合附图对本公开实施例的实现进行详细阐述，所附附图仅供参考说明之用，并非用来限定本公开实施例。在以下的技术描述中，为方便解释起见，通过多个细节以提供对所披露实施例的充分理解。然而，在没有这些细节的情况下，一个或多个实施例仍然可以实施。在其它情况下，为简化附图，熟知的结构和装置可以简化展示。
本公开实施例的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本公开实施例的实施例。此外， 术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含。
除非另有说明，术语“多个”表示两个或两个以上。本公开实施例中，字符“/”表示前后对象是一种“或”的关系。例如，A/B表示：A或B。术语“和/或”是一种描述对象的关联关系，表示可以存在三种关系。例如，A和/或B，表示：A或B，或，A和B这三种关系。
结合图1所示，本公开实施例提供一种用于空调自清洁的控制方法，包括以下步骤：
S101：接收到空调自清洁指令后，控制空调执行自清洁操作并进入自清洁凝霜阶段。
用户可以根据实际需求，通过遥控器等方式向空调器发送自清洁指令。空调器在接收到空调自清洁指令后，控制空调执行自清洁操作，并进入自清洁凝霜阶段。空调室内换热器自清洁时，调节空调四通阀，控制空调室内换热器进入凝霜阶段，空调器以制冷模式运行，将室内空气中的水分以水珠的形式凝结在室内机换热器表面，凝霜后期空调器通过提高制冷量的方式，使前期凝结在换热器表面的水珠凝结成霜层，霜层与换热器表面的灰尘结合。空调室外换热器自清洁时，调节空调四通阀，控制空调室外换热器进入凝霜阶段，空调器以制热模式运行，将室外空气中的水分以水珠的形式凝结在室外机换热器表面，凝霜后期空调器通过提高制热量的方式，使前期凝结在换热器表面的水珠凝结成霜层，霜层与换热器表面的灰尘结合。
S102：在换热器表面凝霜的情况下，控制超声波振荡器按照预设振动频率振动以将换热器表面的凝霜振动脱落。
空调的换热器设置有超声波振荡器，通过超声波振荡器产生超声波振动，使换热器表面的凝霜振动脱落，从而使吸附有灰尘的凝霜得到及时地清理，实现传统空调自清洁化霜阶段的化霜功能。
采用本公开实施例提供的用于空调自清洁的控制方法，在接收到空调自清洁指令后，控制空调执行自清洁操作并进入自清洁凝霜阶段，并在换热器表面凝霜的情况下，控制超声波振荡器按照预设振动频率振动以将换热器表面的凝霜振动脱落。这样，在空调自清洁过程中，通过超声波方式将换热器表面在凝霜阶段产生的凝霜振动脱落，无需通过转变空调器的运行模式来实现化霜，可以有效缩短空调自清洁操作的整体时间，从而更好地提升用户体验。
在一些实施例中，用于空调自清洁的控制方法还包括：控制超声波振荡器按照 预设振动频率振动前，获得空调的压缩机在自清洁凝霜阶段的运行频率；确定与运行频率相对应的振动频率为预设振动频率。
可选地，获得空调的压缩机在自清洁凝霜阶段的运行频率，包括：在室内环境温度大于或等于第一预设温度且室外环境温度大于或等于第二预设温度的情况下，确定运行频率为第一运行频率；在室内环境温度小于第一预设温度且室外环境温度小于第二预设温度的情况下，确定运行频率为第二运行频率；其中，第一预设温度小于或等于第二预设温度，第一运行频率小于第二运行频率。
这里，第一预设温度的取值范围为[10℃，18℃]，例如，10℃、15℃、18℃；第二预设温度的取值范围为[13℃，20℃]，例如，13℃、15℃、18℃、20℃。
在实际应用中，建立压缩机的运行频率与超声波振荡器的振动频率的对应关系表。在该对应关系表中，超声波振荡器的振动频率与压缩机的运行频率正相关，亦即超声波振荡器的高振动频率对应压缩机的高运行频率，超声波振荡器的低振动频率对应压缩机的低运行频率。在确定压缩机的运行频率后，通过查找相应的对应关系表即可确定超声波振荡器的振动频率。
一般来说，环境温度越高，环境湿度越大。在室内环境温度大于或等于第一预设温度且室外环境温度大于或等于第二预设温度的情况下，换热器表面的环境湿度较大，控制压缩机按照第一运行频率(相对较低运行频率)运行，适当延长空调的凝霜时长，使得室内空气中的水分在换热器表面充分凝结成霜层，提高凝霜吸附灰尘的效果，从而提高空调自清洁的效果；在室内环境温度小于第一预设温度且室外环境温度小于第二预设温度的情况下，换热器表面的环境湿度较小，控制压缩机按照第二运行频率(相对较高运行频率)运行，使得室内空气中的水分在换热器表面快速凝结成霜层，充分利用换热器周围的水分，提高凝霜吸附灰尘的效果，从而提高空调自清洁的效果。
在一些实施例中，用于空调自清洁的控制方法还包括：控制空调完成一次自清洁操作后，在空调稳定运行的情况下，获得换热器与空调的风扇之间的环境温度；根据环境温度与预设温度的比例关系，控制空调执行二次自清洁操作。
在实际应用中，在利用换热器与风扇之间的环境温度对换热器的灰尘积聚程度进行判断时，只针对空调稳定运行时获得的环境温度进行判断，空调稳定运行时的运行模式可以是高风档制冷运行模式、中风档制冷运行模式或低风档制冷运行模式。由于空调的换热器与风扇之间的环境温度在空调不稳定运行(例如空调处于放 频状态)时受外界环境影响较大，因而此时的环境温度不能准确地反映换热器的灰尘积聚程度。
可选地，换热器包括室内换热器，风扇包括设置于空调室内机的贯流风扇；获得空调的换热器与风扇之间的环境温度，包括：获得位于室内换热器与贯流风扇之间的第一温度检测点的第一环境温度；其中，第一温度检测点位于贯流风扇机壳的中间位置，且位于贯流风扇机壳与室内换热器之间的中间位置；确定第一环境温度为环境温度。
考虑到贯流风扇出风口处的温度容易受外界环境温度的影响，室内换热器铝箔片之间的温度无法准确反映室内换热器整体的灰尘积聚程度，而且贯流风扇机壳处风量较小，吹风对该处的温度影响小，因而将第一温度检测点设置于贯流风扇机壳的中间位置，以及贯流风扇机壳与室内换热器之间的中间位置，这样检测到的环境温度既不容易受外界环境的影响，也能够更为准确地反映室内换热器整体的灰尘积聚程度。
可选地，换热器包括室外换热器，风扇包括设置于空调室外机的轴流风扇；获得空调的换热器与风扇之间的环境温度，包括：获得位于室外换热器与轴流风扇之间的第二温度检测点的第二环境温度；其中，第二温度检测点位于室外换热器的翅片表面；获得位于室外换热器与轴流风扇之间的第三温度检测点的第三环境温度；其中，第三温度检测点位于轴流风扇的转轴处；获得位于室外换热器与轴流风扇之间的第四温度检测点的第四环境温度；其中，第四温度检测点位于室外换热器的翅片表面与轴流风扇的转轴之间的中间位置；计算获得第二环境温度、第三环境温度与第四环境温度的权重环境温度；确定权重环境温度为环境温度。
由于空调室外换热器与风扇之间的环境温度受外界环境的影响因素较大，因而选取多个温度检测点，通过多个温度检测点检测到的温度来综合确定室外换热器与轴流风扇之间的温度。考虑到室外换热器的灰尘积聚点多聚积于翅片内，且轴流风扇的转轴处风量较小，吹风对该处的温度影响小，因而三个温度检测点分别设置于室外换热器的翅片表面、轴流风扇的转轴处以及室外换热器的翅片表面与轴流风扇的转轴之间的中间位置，这样利用这三个温度检测点检测获得权重环境温度，该权重环境温度的大小直接受制于室外换热器的灰尘堆积程度，能够更为准确地反映室外换热器整体的灰尘积聚程度。
可选地，计算获得第二环境温度、第三环境温度与第四环境温度的权重环境温 度，包括：
Figure PCTCN2021138398-appb-000001
其中，T为权重环境温度，
Figure PCTCN2021138398-appb-000002
为第二环境温度权重系数，T 2为第二环境温度，
Figure PCTCN2021138398-appb-000003
为第三环境温度权重系数，T 3为第三环境温度，
Figure PCTCN2021138398-appb-000004
为第四环境温度权重系数，T 4为第四环境温度。
在实际应用中，
Figure PCTCN2021138398-appb-000005
且
Figure PCTCN2021138398-appb-000006
室外换热器的翅片表面与轴流风扇的转轴之间的中间位置处的温度既能比较准确地反映室外换热器灰尘积聚程度，而且温度波动范围相对较小，温度值较为稳定；轴流风扇的转轴处的风量最小，受吹风影响最小，温度值最为稳定；而室外换热器的翅片表面处的温度能够反映出室外换热器的灰尘积聚程度。因而按照上述方式设置第二环境温度、第三环境温度以及第四环境温度的权重系数，计算获得权重环境温度能够更为准确地反映室外换热器整体的灰尘积聚程度。
可选地，根据环境温度与预设温度的比例关系，控制空调执行二次自清洁操作，包括：计算环境温度与预设温度的比值；在比值处于第一预设比值范围的情况下，控制空调执行二次自清洁操作；在比值处于第二预设比值范围的情况下，控制空调结束自清洁操作。
预设温度可以是空调换热器完成一次自清洁后，在同等稳定运行条件下检测到的换热器与风扇之间的温度，例如空调在高风档制冷运行模式、中风档制冷运行模式或低风档制冷运行模式下检测到的换热器与风扇之间的温度。第一预设比值范围可以为[0，80％]，例如，0、20％、30％、40％、50％、80％，第二预设比值范围可以为(80％，100％]，例如，80％、90％、100％。在环境温度与预设温度的比值处于第一预设比值范围时，表明存在换热器上灰尘积聚过多现象，立即执行二次自清洁操作以免对空调正常换热和用户生命健康造成较大影响；在环境温度与预设温度的比值处于第二预设比值范围时，表明换热器暂不存在积尘现象，此次自清洁操作较为彻底，控制空调结束自清洁操作。这样，能够提高空调自清洁操作的清洁程度。
结合图2所示，本公开实施例提供一种用于空调自清洁的控制方法，包括以下 步骤：
S201：接收到空调自清洁指令后，控制空调执行自清洁操作并进入自清洁凝霜阶段。
S202：获得空调的压缩机在自清洁凝霜阶段的运行频率，并确定与运行频率相对应的振动频率为预设振动频率。
S203：在换热器表面凝霜的情况下，控制超声波振荡器按照预设振动频率振动以将换热器表面的凝霜振动脱落。
S204：控制空调完成一次自清洁操作后，在空调稳定运行的情况下，获得换热器与空调的风扇之间的环境温度。
S205：根据环境温度与预设温度的比例关系，控制空调执行二次自清洁操作。
采用本公开实施例的用于空调自清洁的控制方法，一方面，在空调自清洁过程中，通过超声波方式将换热器表面在凝霜阶段产生的凝霜振动脱落，无需通过转变空调器的运行模式来实现化霜，可以有效缩短空调自清洁操作的整体时间，从而更好地提升用户体验；另一方面，由于当空调的风扇转动时，如果换热器没有积聚灰尘，换热器可以很好地与外环境进行换热，换热器与风扇之间的环境温度相对较高，而当换热器积聚灰尘较多，换热器无法很好与外环境进行换热，换热器与风扇之间的环境温度相对较低，因此可以在空调稳定运行的情况下，获得空调的换热器与风扇之间的环境温度，并根据环境温度与预设温度的比例关系，判断空调上次自清洁操作的清洁效果，控制空调执行二次自清洁操作，从而能够更好地提高空调自清洁操作的清洁程度，提高用户的使用体验。
结合图3所示本公开实施例提供一种用于空调自清洁的控制装置，包括处理器(processor)30和存储器(memory)31，还可以包括通信接口(Communication Interface)32和总线33。其中，处理器30、通信接口32、存储器31可以通过总线33完成相互间的通信。通信接口32可以用于信息传输。处理器30可以调用存储器31中的逻辑指令，以执行上述实施例的用于空调自清洁的控制方法。
此外，上述的存储器31中的逻辑指令可以通过软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。
存储器31作为一种计算机可读存储介质，可用于存储软件程序、计算机可执行程序，如本公开实施例中的方法对应的程序指令/模块。处理器30通过运行存储在存储器31中的程序指令/模块，从而执行功能应用以及数据处理，即实现上述方 法实施例中的用于空调自清洁的控制方法。
存储器31可包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据终端设备的使用所创建的数据等。此外，存储器31可以包括高速随机存取存储器，还可以包括非易失性存储器。
采用本公开实施例提供的用于空调自清洁的控制装置，在接收到空调自清洁指令后，控制空调执行自清洁操作并进入自清洁凝霜阶段，并在换热器表面凝霜的情况下，控制超声波振荡器按照预设振动频率振动以将换热器表面的凝霜振动脱落。这样，在空调自清洁过程中，通过超声波方式将换热器表面在凝霜阶段产生的凝霜振动脱落，无需通过转变空调器的运行模式来实现化霜，可以有效缩短空调自清洁操作的整体时间，从而更好地提升用户体验。
本公开实施例提供了一种空调，包含上述的用于空调自清洁的控制装置。
本公开实施例提供了一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令设置为执行上述用于空调自清洁的控制方法。
本公开实施例提供了一种计算机程序产品，所述计算机程序产品包括存储在计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行上述用于空调自清洁的控制方法。
上述的计算机可读存储介质可以是暂态计算机可读存储介质，也可以是非暂态计算机可读存储介质。
本公开实施例的技术方案可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括一个或多个指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开实施例所述方法的全部或部分步骤。而前述的存储介质可以是非暂态存储介质，包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等多种可以存储程序代码的介质，也可以是暂态存储介质。
以上描述和附图充分地示出了本公开的实施例，以使本领域的技术人员能够实践它们。其他实施例可以包括结构的、逻辑的、电气的、过程的以及其他的改变。实施例仅代表可能的变化。除非明确要求，否则单独的部件和功能是可选的，并且操作的顺序可以变化。一些实施例的部分和特征可以被包括在或替换其他实施例的部分和特征。本公开实施例的范围包括权利要求书的整个范围，以及权利要求书的 所有可获得的等同物。当用于本申请中时，虽然术语“第一”、“第二”等可能会在本申请中使用以描述各元件，但这些元件不应受到这些术语的限制。这些术语仅用于将一个元件与另一个元件区别开。例如，在不改变描述的含义的情况下，第一元件可以叫做第二元件，并且同样第，第二元件可以叫做第一元件，只要所有出现的“第一元件”一致重命名并且所有出现的“第二元件”一致重命名即可。第一元件和第二元件都是元件，但可以不是相同的元件。而且，本申请中使用的用词仅用于描述实施例并且不用于限制权利要求。如在实施例以及权利要求的描述中使用的，除非上下文清楚地表明，否则单数形式的“一个”(a)、“一个”(an)和“所述”(the)旨在同样包括复数形式。类似地，如在本申请中所使用的术语“和/或”是指包含一个或一个以上相关联的列出的任何以及所有可能的组合。另外，当用于本申请中时，术语“包括”(comprise)及其变型“包括”(comprises)和/或包括(comprising)等指陈述的特征、整体、步骤、操作、元素，和/或组件的存在，但不排除一个或一个以上其它特征、整体、步骤、操作、元素、组件和/或这些的分组的存在或添加。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法或者设备中还存在另外的相同要素。本文中，每个实施例重点说明的可以是与其他实施例的不同之处，各个实施例之间相同相似部分可以互相参见。对于实施例公开的方法、产品等而言，如果其与实施例公开的方法部分相对应，那么相关之处可以参见方法部分的描述。
本领域技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，可以取决于技术方案的特定应用和设计约束条件。所述技术人员可以对每个特定的应用来使用不同方法以实现所描述的功能，但是这种实现不应认为超出本公开实施例的范围。所述技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
本文所披露的实施例中，所揭露的方法、产品(包括但不限于装置、设备等)，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，可以仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以 是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例。另外，在本公开实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
附图中的流程图和框图显示了根据本公开实施例的系统、方法和计算机程序产品的可能实现的体系架构、功能和操作。在这点上，流程图或框图中的每个方框可以代表一个模块、程序段或代码的一部分，所述模块、程序段或代码的一部分包含一个或多个用于实现规定的逻辑功能的可执行指令。在有些作为替换的实现中，方框中所标注的功能也可以以不同于附图中所标注的顺序发生。例如，两个连续的方框实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这可以依所涉及的功能而定。在附图中的流程图和框图所对应的描述中，不同的方框所对应的操作或步骤也可以以不同于描述中所披露的顺序发生，有时不同的操作或步骤之间不存在特定的顺序。例如，两个连续的操作或步骤实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这可以依所涉及的功能而定。框图和/或流程图中的每个方框、以及框图和/或流程图中的方框的组合，可以用执行规定的功能或动作的专用的基于硬件的系统来实现，或者可以用专用硬件与计算机指令的组合来实现。

Claims (10)

  1. 一种用于空调自清洁的控制方法，其特征在于，所述空调的换热器设置有超声波振荡器；所述控制方法包括：
    接收到空调自清洁指令后，控制空调执行自清洁操作并进入自清洁凝霜阶段；
    在所述换热器表面凝霜的情况下，控制所述超声波振荡器按照预设振动频率振动以将所述换热器表面的凝霜振动脱落。
  2. 根据权利要求1所述的控制方法，其特征在于，还包括：
    控制所述超声波振荡器按照预设振动频率振动前，获得所述空调的压缩机在自清洁凝霜阶段的运行频率；
    确定与所述运行频率相对应的振动频率为所述预设振动频率。
  3. 根据权利要求2所述的控制方法，其特征在于，所述获得所述空调的压缩机在自清洁凝霜阶段的运行频率，包括：
    在室内环境温度大于或等于第一预设温度且室外环境温度大于或等于第二预设温度的情况下，确定所述运行频率为第一运行频率；
    在所述室内环境温度小于所述第一预设温度且所述室外环境温度小于所述第二预设温度的情况下，确定所述运行频率为第二运行频率；
    其中，所述第一预设温度小于或等于所述第二预设温度，所述第一运行频率小于所述第二运行频率。
  4. 根据权利要求1、2或3所述的控制方法，其特征在于，还包括：
    控制所述空调完成一次自清洁操作后，在空调稳定运行的情况下，获得所述换热器与所述空调的风扇之间的环境温度；
    根据所述环境温度与预设温度的比例关系，控制所述空调执行二次自清洁操作。
  5. 根据权利要求4所述的控制方法，其特征在于，所述换热器包括室内换热器，所述风扇包括设置于空调室内机的贯流风扇；所述获得所述空调的换热器与风扇之间的环境温度，包括：
    获得位于所述室内换热器与所述贯流风扇之间的第一温度检测点的第一环境温度；其中，所述第一温度检测点位于所述贯流风扇机壳的中间位置，且位于所述贯流风扇机壳与所述室内换热器之间的中间位置；
    确定所述第一环境温度为所述环境温度。
  6. 根据权利要求4所述的控制方法，其特征在于，所述换热器包括室外换热器，所述风扇包括设置于空调室外机的轴流风扇；所述获得所述空调的换热器与风扇之间的环境温度，包括：
    获得位于所述室外换热器与所述轴流风扇之间的第二温度检测点的第二环境温度；其中，所述第二温度检测点位于所述室外换热器的翅片表面；
    获得位于所述室外换热器与所述轴流风扇之间的第三温度检测点的第三环境温度；其中，所述第三温度检测点位于所述轴流风扇的转轴处；
    获得位于所述室外换热器与所述轴流风扇之间的第四温度检测点的第四环境温度；其中，所述第四温度检测点位于所述室外换热器的翅片表面与所述轴流风扇的转轴之间的中间位置；
    计算获得所述第二环境温度、所述第三环境温度与所述第四环境温度的权重环境温度；
    确定所述权重环境温度为所述环境温度。
  7. 根据权利要求6所述的控制方法，其特征在于，所述计算获得所述第二环境温度、所述第三环境温度与所述第四环境温度的权重环境温度，包括：
    Figure PCTCN2021138398-appb-100001
    其中，T为权重环境温度，
    Figure PCTCN2021138398-appb-100002
    为第二环境温度权重系数，T 2为第二环境温度，
    Figure PCTCN2021138398-appb-100003
    为第三环境温度权重系数，T 3为第三环境温度，
    Figure PCTCN2021138398-appb-100004
    为第四环境温度权重系数，T 4为第四环境温度。
  8. 根据权利要求4所述的控制方法，其特征在于，所述根据所述环境温度与预设温度的比例关系，控制所述空调执行二次自清洁操作，包括：
    计算所述环境温度与所述预设温度的比值；
    在所述比值处于第一预设比值范围的情况下，控制所述空调执行二次自清洁操作；
    在所述比值处于第二预设比值范围的情况下，控制所述空调结束自清洁操作。
  9. 一种用于空调自清洁的控制装置，包括处理器和存储有程序指令的存储器，其特征在于，所述处理器被配置为在执行所述程序指令时，执行如权利要求1至8 任一项所述的用于空调自清洁的控制方法。
  10. 一种空调，其特征在于，包括如权利要求9所述的用于空调自清洁的控制装置。
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