WO2022160654A1 - Procédé et appareil de commande d'auto-nettoyage de climatiseur, et climatiseur associé - Google Patents

Procédé et appareil de commande d'auto-nettoyage de climatiseur, et climatiseur associé Download PDF

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Publication number
WO2022160654A1
WO2022160654A1 PCT/CN2021/111507 CN2021111507W WO2022160654A1 WO 2022160654 A1 WO2022160654 A1 WO 2022160654A1 CN 2021111507 W CN2021111507 W CN 2021111507W WO 2022160654 A1 WO2022160654 A1 WO 2022160654A1
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WIPO (PCT)
Prior art keywords
air conditioner
self
light reflection
reflection value
heat exchanger
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PCT/CN2021/111507
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English (en)
Chinese (zh)
Inventor
吕科磊
刘超
陈朋
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 WO2022160654A1 publication Critical patent/WO2022160654A1/fr

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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
    • 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
    • F24F11/64—Electronic processing using pre-stored data
    • 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
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
    • F24F2130/30—Artificial light
    • 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

Definitions

  • the present application relates to the technical field of smart home appliances, for example, to a control method and device for self-cleaning of an air conditioner, and an air conditioner.
  • the dust and large particles mixed in the outside air will enter the air conditioner and adhere to the surface of the air conditioner heat exchanger, which directly affects the heat exchange between the heat exchanger and the outside air. And affect the air quality.
  • the air conditioner heat exchanger needs to be cleaned regularly.
  • the user performs the self-cleaning operation of the air-conditioning heat exchanger by manually starting the air-conditioning self-cleaning function.
  • the interval time for the user to manually activate the self-cleaning function of the air conditioner is too long, the dust accumulation of the heat exchanger is too much, the heating or cooling effect of the air conditioner is weakened, and it is easy to Affect people's health; and because the self-cleaning operation will disrupt the normal cooling or heating mode of the air conditioner, the user's manual activation of the air conditioner's self-cleaning function is too short, which will easily affect the normal cooling or heating adjustment of the air conditioner and reduce the user experience. Therefore, how to determine the right time to start the air conditioner self-cleaning has become an urgent problem to be solved.
  • the embodiments of the present disclosure provide a control method and device for self-cleaning of an air conditioner, and an air conditioner, so as to solve the problem that the proper timing for starting the self-cleaning of the air conditioner cannot be well determined at present.
  • a control method for air conditioner self-cleaning includes: obtaining a light reflection value of a heat exchanger surface of an air conditioner; and determining a start time of the air conditioner self-cleaning operation according to a proportional relationship between the light reflection value and a preset light reflection value ; Control the air conditioner to perform self-cleaning operation according to the starting time.
  • a control device for air conditioner self-cleaning includes a processor and a memory storing program instructions, wherein 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 air conditioner self-cleaning.
  • control method and device for air conditioner self-cleaning, and the air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:
  • a light-emitting diode is set inside the heat exchanger, which emits light, and the light is refracted and reflected in the aluminum sheet of the heat exchanger.
  • a light receiver is arranged outside the heat exchanger. When there is no dust between the aluminum foils, almost all the light will be received by the light receiver; when the dust between the aluminum foils accumulates too much, most of the light will be refracted and deviated or absorbed.
  • the start time of the air conditioner self-cleaning operation is determined, and then Controlling the air conditioner to perform the self-cleaning operation according to the start-up time can well determine the appropriate time to start the air-conditioning self-cleaning, ensure good heating or cooling regulation of the air conditioner, and improve the user experience.
  • FIG. 1 is a schematic flowchart of a control method for air conditioner self-cleaning provided by an embodiment of the present disclosure
  • FIG. 2 is a schematic flowchart of another control method for air-conditioning self-cleaning provided by an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of a control device for air-conditioning self-cleaning 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 in an "or" relationship.
  • A/B means: A or B.
  • the term “and/or” is an associative relationship describing objects, indicating that three relationships can exist.
  • a and/or B means: A or B, or, A and B three relationships.
  • an embodiment of the present disclosure provides a control method for air conditioner self-cleaning, including the following steps:
  • a light-emitting diode is set inside the air conditioner heat exchanger, which emits light, and the light is refracted and reflected in the aluminum sheet of the heat exchanger.
  • a light receiver is arranged outside the heat exchanger. When there is no dust between the aluminum foils of the heat exchanger, almost all the light will be received by the receiver; when the dust between the aluminum foils accumulates too much, most of the light will be refracted Deviation or absorption, which causes a change in the total amount of light received by the receiver.
  • obtaining the light reflection value of the heat exchanger surface of the air conditioner includes: obtaining a first light reflection value of a first light detection point located on the heat exchanger surface; wherein the first light detection point is located on a fin of the heat exchanger obtaining the second light reflection value of the second light detection point located on the surface of the heat exchanger; wherein, the second light detection point is located on the surface of the heat exchange tube of the heat exchanger; calculating the first light reflection value and the second light reflection The value of the weighted light reflection value; determines the weighted light reflection value of the light reflection value.
  • the light reflection value received by the light receiver is not only affected by the degree of dust accumulation in the heat exchanger, but also by some external accidental factors, such as when there are small flying insects between the LED and the light receiver, the light receiver receives The light reflection value of , will be greatly affected. Therefore, light detection points are set on the surface of the fins of the heat exchanger and the surface of the heat exchange tube of the heat exchanger respectively, and the degree of dust accumulation in the air conditioner heat exchanger is reflected by calculating the weighted light reflection value detected by the two light detection points. It can reduce the influence of accidental factors on the test results.
  • calculating the weighted light reflection value of the first light reflection value and the second light reflection value includes:
  • A is the weighted light reflection value
  • a 1 is the first light reflection value
  • a 2 is the second light reflection value
  • the weighting coefficients of the first light reflection value and the second light reflection value are set according to the above method, and the calculated weighted light reflection value can be More accurately reflect the dust accumulation degree of the heat exchanger as a whole.
  • S102 Determine the start-up time of the self-cleaning operation of the air conditioner according to the proportional relationship between the light reflection value and the preset light reflection value.
  • determining the start time of the air conditioner self-cleaning operation includes: calculating the ratio of the light reflection value to the preset light reflection value; when the ratio is at the first preset ratio When the ratio is within the second preset ratio range, the start time is determined to be the moment when the self-cleaning control instruction is received.
  • the preset light reflection value may be the detected light reflection value on the surface of the heat exchanger after the air conditioner heat exchanger completes one self-cleaning.
  • the first preset ratio range can be [0, 50%], for example, 0, 20%, 30%, 40%, 50%, and the second preset ratio range can be (50%, 80%], for example, 60 %, 70%, 80%.
  • the ratio of the light reflection value on the surface of the heat exchanger to the preset light reflection value is in the first preset ratio range, it indicates that there is excessive dust accumulation on the heat exchanger, and self-cleaning is performed immediately Operate to avoid a great impact on the normal heat exchange of the air conditioner and the life and health of users;
  • the ratio of the light reflection value on the surface of the heat exchanger to the preset light reflection value is in the second preset ratio range, it indicates that there is dust accumulation on the heat exchanger phenomenon (but will not pose a threat to the normal heat exchange of the air conditioner and the life and health of the user), issue a self-cleaning prompt message, and execute the self-cleaning operation after receiving the self-cleaning instruction sent by the user based on the self-cleaning prompt information, so as to avoid the air conditioner due to the self-cleaning prompt information.
  • the cleaning operation disturbs the normal cooling or heating operation of the air conditioner, thereby improving the user experience.
  • the air conditioner After determining the start time of the air conditioner self-cleaning operation, the air conditioner is controlled to perform the self-cleaning operation according to the start time.
  • an indicator light is set on the filter screen of the air conditioner to indicate the dust accumulation of the heat exchanger.
  • the indicator light flashes in red to remind the user that the heat exchanger is seriously dusty;
  • the ratio of the ambient temperature to the preset temperature is in the second preset ratio range , the indicator light flashes in yellow, indicating to the user that there is dust accumulation in the heat exchanger; otherwise, the indicator light is always on in green, indicating to the user that there is no dust accumulation in the heat exchanger.
  • the dust accumulation on the surface of the heat exchanger can be known, and the different colors of the indicator lights can be used to remind the user to better understand the heat exchanger. dust condition.
  • a light emitting diode is arranged inside the heat exchanger, which emits light, and the light is refracted and reflected in the aluminum sheet of the heat exchanger.
  • a light receiver is arranged outside the heat exchanger. When there is no dust between the aluminum foils, almost all the light will be received by the light receiver; when the dust between the aluminum foils accumulates too much, most of the light will be refracted and deviated or absorbed.
  • the start time of the air conditioner self-cleaning operation is determined, and then Controlling the air conditioner to perform the self-cleaning operation according to the start-up time can well determine the appropriate time to start the air-conditioning self-cleaning, ensure good heating or cooling regulation of the air conditioner, and improve the user experience.
  • control method for air conditioner self-cleaning further includes: obtaining a light color value on the surface of the heat exchanger; determining an execution mode of the air conditioner self-cleaning operation according to the relationship between the light color value and the preset light color value; The air conditioner is controlled to perform the self-cleaning operation according to this execution mode.
  • the light color value is the light color, which is a numerical value representing the light color in optics with K (kevin) as the calculation unit.
  • K kevin
  • the preset light color value may be the light color value detected when it is manually confirmed that there is dust accumulation on the surface of the heat exchanger and a self-cleaning operation is required. According to the relationship between the light color value on the surface of the heat exchanger and the preset light color value, the execution mode of the self-cleaning operation of the air conditioner is determined, which can better realize the self-cleaning effect of the air conditioner.
  • determining the execution mode of the air conditioner self-cleaning operation according to the magnitude relationship between the light color value and the preset light color value including: when the light color value is greater than or equal to the preset light color value, determining that the execution mode is strong. Self-cleaning operation; in the case that the light color value is less than the preset light color value, the execution mode is determined to be a common self-cleaning operation.
  • the self-cleaning operation of the air conditioner is mainly divided into the frost condensation stage and the defrosting stage.
  • the form of beads condenses on the surface of the heat exchanger of the indoor unit.
  • the air conditioner makes the water droplets condensed on the surface of the heat exchanger in the early stage condense into a frost layer by increasing the cooling capacity, and the frost layer combines with the dust on the surface of the heat exchanger.
  • the strong self-cleaning operation increases the frost condensation time in the later stage of the self-cleaning operation (that is, the frost condensation time of the strong self-cleaning operation is longer than that of the ordinary self-cleaning operation), so that the water droplets condensed on the surface of the heat exchanger are formed.
  • the frost layer is combined with the dust on the heat exchanger surface to a greater extent, which can better improve the self-cleaning effect.
  • the execution mode of the air conditioner self-cleaning operation is determined.
  • the light color value is greater than or equal to the preset light color value, it indicates that the air conditioner heat exchanger If the dust is serious, it is determined that the execution mode is a strong self-cleaning operation, and if the light color value is less than the preset light color value, it indicates that there is dust accumulation in the air conditioner heat exchanger, and the execution mode is determined to be an ordinary self-cleaning operation.
  • the self-cleaning time of the air conditioner is shortened, the normal air conditioning of the air conditioner is ensured as much as possible, and the user experience is improved.
  • control method for air conditioner self-cleaning further includes: after controlling the air conditioner to complete one self-cleaning operation, obtaining the ambient temperature change rate between the heat exchanger and the fan within a preset time period after the air conditioner starts and operates; The relationship between the ambient temperature change rate and the preset temperature change rate controls whether the air conditioner performs the self-cleaning operation again.
  • the preset temperature change rate may be the difference between the heat exchanger and the fan within a preset period of time (for example, 5 to 10 minutes after the start) after the air conditioner is started and detected when it is confirmed that there is no dust accumulation in the heat exchanger during the preliminary test.
  • the rate of change of ambient temperature between.
  • the change rate of the ambient temperature between the heat exchanger and the fan when the air conditioner heat exchanger has dust accumulation is less than The rate of change of ambient temperature between the heat exchanger and the fan when there is no dust accumulation in the air conditioner heat exchanger. Therefore, according to the relationship between the rate of change of the ambient temperature and the rate of change of the preset temperature, it is controlled whether the air conditioner performs the self-cleaning operation again, so as to avoid incomplete cleaning of the self-cleaning operation.
  • controlling whether the air conditioner performs the self-cleaning operation again according to the magnitude relationship between the rate of change of the ambient temperature and the rate of change of the preset temperature includes: when the rate of change of the ambient temperature is less than the preset rate of change of temperature, controlling the air conditioner to perform the self-cleaning operation again. Cleaning operation; when the ambient temperature change rate is greater than or equal to the preset temperature change rate, control the air conditioner to end the self-cleaning operation.
  • the self-cleaning operation is not complete this time, and the air conditioner is controlled to perform the self-cleaning operation again; when the ambient temperature change rate is greater than or equal to the preset temperature When the rate of change is changed, it indicates that there is no dust accumulation in the heat exchanger for the time being.
  • This self-cleaning operation is relatively thorough, and the air conditioner is controlled to end the self-cleaning operation. In this way, the degree of cleaning of the air conditioner self-cleaning operation can be improved.
  • an embodiment of the present disclosure provides a control method for air conditioner self-cleaning, including the following steps:
  • S202 Determine the start-up time of the self-cleaning operation of the air conditioner according to the proportional relationship between the light reflection value and the preset light reflection value.
  • S203 Control the air conditioner to perform a self-cleaning operation according to the startup time.
  • S205 Determine the execution mode of the air conditioner self-cleaning operation according to the magnitude relationship between the light color value and the preset light color value.
  • S206 Control the air conditioner to perform the self-cleaning operation according to the execution mode.
  • S208 Determine whether the ambient temperature change rate is less than the preset temperature change rate.
  • S209 Control the air conditioner to perform the self-cleaning operation again when the ambient temperature change rate is less than the preset temperature change rate.
  • the start time of the air conditioner self-cleaning operation is determined, and then the air conditioner is controlled to perform the self-cleaning operation according to the start time, It can better determine the right time to start the air conditioner self-cleaning, avoid the user's manual start of the air conditioner self-cleaning function from being too long or too short, and improve the user's experience.
  • a control device for air conditioner self-cleaning which includes 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 may be used for information transfer.
  • the processor 30 may invoke the logic instructions in the memory 31 to execute the control method for air conditioner self-cleaning in the above embodiments.
  • logic instructions in the memory 31 can be implemented in the form of software functional 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 functional applications and data processing by running the program instructions/modules stored in the memory 31, that is, to implement the control method for air conditioner self-cleaning in the above method embodiments.
  • the memory 31 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.
  • the memory 31 may include a high-speed random access memory, and may also include a non-volatile memory.
  • An embodiment of the present disclosure provides an air conditioner, including the above-mentioned control device for self-cleaning of the air conditioner.
  • Embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions, where the computer-executable instructions are configured to execute the foregoing control method for air conditioner self-cleaning.
  • Embodiments of the present disclosure provide a computer program product, where the computer program product includes a computer program stored on a computer-readable storage medium, and the computer program includes program instructions that, when executed by a computer, cause all The computer executes the above control method for air conditioner self-cleaning.
  • the above-mentioned computer-readable storage medium may be a transient computer-readable storage medium, and may also be a non-transitory computer-readable storage medium.
  • the technical solutions of the embodiments of the present disclosure may be embodied in the form of software products, and the computer software products are stored in a storage medium and include one or more instructions to enable a computer device (which may be a personal computer, a server, or a network equipment, etc.) to execute all or part of the steps of the methods described in the embodiments of the present disclosure.
  • the aforementioned storage medium can be a non-transitory storage medium, including: U disk, removable hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, etc.
  • a first element could be termed a second element, and similarly, a second element could be termed a first element, so long as all occurrences of "the first element” were consistently renamed and all occurrences of "the first element” were named consistently
  • the “second element” 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 this application are used to describe the embodiments only and not to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a” (a), “an” (an) and “the” (the) are intended to include the plural forms as well, unless the context clearly dictates 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 listings.
  • the term “comprise” and its variations “comprises” and/or including and/or the like 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 qualified by the phrase “comprising a" does not preclude the presence of additional identical elements in the process, method, or device that includes the element.
  • each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other.
  • the methods, products, etc. disclosed in the embodiments if they correspond to the method section disclosed in the embodiments, reference may be made to the description of the method section for relevant parts.
  • the disclosed methods and products may be implemented in other ways.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units may only be a logical function division.
  • there may be other division methods for example, multiple units or components may be combined Either it can be integrated into another system, or some features can be omitted, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • each functional unit in the embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • each block in the flowchart or block diagrams may represent a module, segment, or portion of code that contains one or more functions for implementing the specified logical function(s) executable instructions.
  • the functions noted in the blocks may occur out of the order noted in the figures. For example, two blocks 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.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

La présente demande se rapporte au domaine technique des appareils ménagers intelligents. L'invention concerne un procédé de commande pour l'auto-nettoyage d'un climatiseur, consistant : à obtenir une valeur de réflexion de lumière de la surface d'un échangeur de chaleur d'un climatiseur ; en fonction d'une relation proportionnelle entre la valeur de réflexion de lumière et une valeur de réflexion de lumière prédéfinie, à déterminer un temps de démarrage d'une opération d'auto-nettoyage du climatiseur ; et à commander le climatiseur pour réaliser une opération d'auto-nettoyage en fonction du temps de démarrage. Une diode électroluminescente est disposée à l'intérieur de l'échangeur de chaleur, un récepteur de lumière est disposé à l'extérieur de l'échangeur de chaleur, et la quantité totale de lumière reçue par le récepteur de lumière varie en fonction du degré d'accumulation de poussière sur l'échangeur de chaleur ; en fonction d'une relation proportionnelle entre une valeur de réflexion de lumière de la surface de l'échangeur de chaleur du climatiseur et d'une valeur de réflexion de lumière prédéfinie, un temps de démarrage d'une opération d'auto-nettoyage du climatiseur est déterminé, puis le climatiseur est commandé pour réaliser une opération d'auto-nettoyage en fonction du temps de démarrage, pour déterminer correctement une synchronisation appropriée pour le démarrage de l'auto-nettoyage du climatiseur, pour garantir un bon conditionnement du chauffage ou du refroidissement du climatiseur, ce qui permet d'améliorer l'expérience de l'utilisateur. L'invention concerne également un appareil de commande pour l'auto-nettoyage d'un climatiseur, et un climatiseur.
PCT/CN2021/111507 2021-02-01 2021-08-09 Procédé et appareil de commande d'auto-nettoyage de climatiseur, et climatiseur associé WO2022160654A1 (fr)

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CN114608135A (zh) * 2022-02-25 2022-06-10 青岛海尔空调器有限总公司 用于空调器的自清洁控制方法及装置、空调器、存储介质

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