CN113357789B - Control method and device for self-cleaning of air conditioner and air conditioner - Google Patents
Control method and device for self-cleaning of air conditioner and air conditioner Download PDFInfo
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- CN113357789B CN113357789B CN202110552577.3A CN202110552577A CN113357789B CN 113357789 B CN113357789 B CN 113357789B CN 202110552577 A CN202110552577 A CN 202110552577A CN 113357789 B CN113357789 B CN 113357789B
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0087—Indoor units, e.g. fan coil units with humidification means
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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
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Air Conditioning Control Device (AREA)
Abstract
The application relates to the technical field of intelligent air conditioners and discloses a control method for self cleaning of an air conditioner, which comprises the following steps: before the air conditioner performs self-cleaning operation, detecting the environmental humidity on the surface of the heat exchanger; starting a humidifier of the air conditioner to humidify under the condition that the environmental humidity is less than the preset humidity, and controlling a compressor of the air conditioner to operate according to a first operating frequency; controlling the compressor to operate according to a second operating frequency under the condition that the environmental humidity is greater than or equal to the preset humidity; the air conditioner is controlled to perform a self-cleaning operation. The frosting environment on the surface of the heat exchanger is known according to the relation between the environmental humidity and the preset humidity on the surface of the heat exchanger, the compressor is flexibly controlled to operate under different operating frequencies, the compressor is not easily damaged due to overlarge operating frequency of the compressor, the frosting effect of the heat exchanger is not poor due to the fact that the operating frequency of the compressor is too low, and the self-cleaning function of the air conditioner can be better realized. The application also discloses a control device and an air conditioner for the air conditioner is automatically cleaned.
Description
Technical Field
The application relates to the technical field of intelligent air conditioners, in particular to a control method and device for self-cleaning of an air conditioner and the air conditioner.
Background
During the heating or refrigerating operation process of the air conditioner, dust, large-particle impurities and the like mixed in the outside air can enter the air conditioner and attach to the surface of an air conditioner heat exchanger, so that the heat exchange between the heat exchanger and the outside air is directly influenced, and the air outlet quality is influenced. In order to ensure the heat exchange efficiency and the air outlet quality, the air conditioner heat exchanger needs to be automatically cleaned. The self-cleaning operation of the air conditioner is mainly divided into a frost condensation stage and a defrosting stage. Taking self-cleaning of an indoor heat exchanger as an example, in a frost condensation stage, an air conditioner operates in a refrigeration mode at the early stage of frost condensation, moisture in indoor air is condensed on the surface of the heat exchanger of an indoor unit in a bead form, the air conditioner at the later stage of frost condensation enables the beads condensed on the surface of the heat exchanger at the early stage to be condensed into a frost layer in a mode of improving the refrigerating capacity, and the frost layer is combined with dust on the surface of the heat exchanger and is peeled off; and then, entering a defrosting stage, operating the air conditioner in a heating mode, increasing the temperature of the coil pipe of the indoor heat exchanger, melting a frost layer, collecting dust in a water receiving plate along with melted water flow, and finishing self-cleaning operation. Currently, during the self-cleaning process of an air conditioner, the compressor is operated at a fixed operating frequency.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: in the air conditioner self-cleaning process, the compressor runs according to a fixed running frequency, the fixed running frequency is too high, the compressor is easily damaged, the service life of the compressor is shortened, the fixed running frequency is too low, the heat exchanger is poor in frost condensation or defrosting effect, and the air conditioner self-cleaning function cannot be well realized.
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 control method and device for self-cleaning of an air conditioner and the air conditioner, and aims to solve the problems that in the self-cleaning process of the air conditioner at present, a compressor runs according to a fixed running frequency, the service life of the compressor is easily shortened, or the self-cleaning function of the air conditioner cannot be well realized.
In some embodiments, a control method for self-cleaning of an air conditioner includes: before the air conditioner performs self-cleaning operation, detecting the environmental humidity on the surface of the heat exchanger; starting a humidifier of the air conditioner for humidification and controlling a compressor of the air conditioner to operate according to a first operation frequency under the condition that the environmental humidity is less than the preset humidity; controlling the compressor to operate according to a second operating frequency under the condition that the environmental humidity is greater than or equal to the preset humidity; controlling the air conditioner to perform a self-cleaning operation.
In some embodiments, the control device for air conditioner self-cleaning comprises a processor and a memory storing program instructions, the processor being configured to execute the aforementioned control method for air conditioner self-cleaning when executing the program instructions.
In some embodiments, the air conditioner includes the aforementioned control device for self-cleaning of the air conditioner.
The control method and device for self-cleaning of the air conditioner and the air conditioner provided by the embodiment of the disclosure can realize the following technical effects:
before the air conditioner executes self-cleaning operation, the environmental humidity on the surface of the heat exchanger is detected, if the environmental humidity is smaller than the preset humidity, a humidifier of the air conditioner is started to humidify, a compressor of the air conditioner is controlled to operate according to a first operating frequency, if the environmental humidity is larger than or equal to the preset humidity, the compressor is controlled to operate according to a second operating frequency, and then the air conditioner is continuously controlled to execute the self-cleaning operation. Therefore, the frosting environment on the surface of the heat exchanger is known according to the relation between the environmental humidity on the surface of the heat exchanger and the preset humidity, the compressor is flexibly controlled to operate under different operating frequencies based on different frosting environments on the surface of the heat exchanger, the compressor is not easily damaged due to overlarge operating frequency of the compressor, the heat exchanger is not easily frosted or the defrosting effect is poor due to the fact that the operating frequency of the compressor is too low, and the self-cleaning function of the air conditioner can be well achieved.
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 flowchart of a control method for self-cleaning of an air conditioner according to an embodiment of the present disclosure;
fig. 2 is a schematic flow chart of another control method for self-cleaning of an air conditioner according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a control device for self-cleaning of an air conditioner according to an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and 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 claims of the embodiments of the disclosure and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged 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.
Referring to fig. 1, an embodiment of the present disclosure provides a control method for self-cleaning of an air conditioner, including the following steps:
and S101, detecting the environmental humidity on the surface of the heat exchanger before the air conditioner performs self-cleaning operation.
After the air conditioner receives the self-cleaning instruction, the humidity sensor disposed at the heat exchanger may be used to detect the ambient humidity (relative ambient humidity) on the surface of the heat exchanger before the self-cleaning operation is performed.
And S102, starting a humidifier of the air conditioner for humidification and controlling a compressor of the air conditioner to operate according to a first operation frequency under the condition that the environmental humidity is less than the preset humidity.
In the early-stage test of the air conditioner, the self-cleaning operation of the air conditioner is executed under the condition that the environmental humidity on the surface of the heat exchanger is different, the environmental humidity with better self-cleaning effect is finally determined, and the environmental humidity with the most frequent occurrence is determined as the preset humidity. For example, the predetermined humidity may be in the range of [55%,65% ], e.g., 55%, 58%, 60%, 63%, 65%.
The self-cleaning process of the air conditioner comprises a frost condensation stage and a defrosting stage, wherein in the frost condensation stage, moisture around the heat exchanger is condensed on the surface of the heat exchanger in a bead form, the air conditioner in the later stage of frost condensation enables the beads condensed on the surface of the heat exchanger in the earlier stage to be condensed into a frost layer in a mode of improving the refrigerating capacity, and the frost layer is combined with dust on the surface of the heat exchanger and is peeled off; and then entering a defrosting stage, wherein the temperature of the coil pipe of the heat exchanger is increased, the frost layer is melted, and dust is collected in the water receiving tray along with the melted water flow. Therefore, the final self-cleaning effect of the air conditioner is influenced to a great extent by the environment humidity on the surface of the heat exchanger, the larger the environment humidity on the surface of the heat exchanger is, the better the frost condensation effect is, and the better the final self-cleaning effect is. Therefore, under the condition that the environment humidity is smaller than the preset humidity, the humidifier of the air conditioner is started to humidify, and the final self-cleaning effect of the air conditioner is improved.
Optionally, the first operating frequency is determined as follows: obtaining the humidifying power of a humidifier; a first operating frequency is determined from the humidification power.
In practical applications, a correspondence relationship between the humidification power of the humidifier and the first operating frequency of the compressor may be established, and table 1 below shows an alternative first correspondence relationship table between the humidification power and the first operating frequency. In the correspondence table of the humidification power and the first operating frequency, the first operating power is positively correlated with the humidification power. Based on the humidifying power of the humidifier, the first operation power of the corresponding compressor can be determined by searching the first corresponding relation table.
Table 1: first corresponding relation table
| Humidification power (Unit: watt W) | First operating frequency (unit: hz) |
| 50 | 80 |
| 60 | 85 |
| 70 | 90 |
In the air conditioner self-cleaning frost condensation stage, in the humidifier humidifying process, when the environment humidity on the surface of the heat exchanger is small, if the operating frequency of the compressor is too large, a small amount of moisture on the surface of the heat exchanger is quickly condensed, a condensed frost layer is too thin, and the dust on the surface of the heat exchanger cannot be completely absorbed and combined by larger adsorption force or holding force in the frost condensation process. The operation frequency of the compressor is determined according to the humidifying power of the humidifier, the larger the humidifying power is, the faster the moisture on the surface of the heat exchanger is increased, the larger the operation frequency is, and the frost layer condensed by the moisture on the surface of the heat exchanger in the frost condensation process can be better combined with the dust on the surface of the heat exchanger, so that the self-cleaning function of the air conditioner is better realized.
Optionally, determining the first operating frequency according to the humidification power includes calculating the first operating frequency according to the following formula:
wherein, F 1 Is the first operating frequency, F, of the compressor 0 For the initial operating frequency, P, of the compressor 0 The preset humidifying power of the humidifier is P, and the humidifying power of the humidifier is P.
On the basis of the initial operation frequency of the compressor, the operation frequency of the compressor is determined according to the humidification power of the humidifier, the higher the humidification power is, the faster the moisture on the surface of the heat exchanger is increased, the higher the operation frequency is, and the frost layer condensed by the moisture on the surface of the heat exchanger in the frost condensation process can be better combined with the dust on the surface of the heat exchanger, so that the self-cleaning function of the air conditioner is better realized.
And S103, controlling the compressor to operate according to a second operating frequency under the condition that the environmental humidity is greater than or equal to the preset humidity.
Optionally, the second operating frequency is determined as follows: obtaining a current ambient temperature; determining the lowest temperature which can be reached by the heat exchanger at the current ambient temperature; determining the frequency increasing rate of the compressor according to the current environment temperature and the lowest temperature; the second operating frequency is determined from the ramp rate based on the current first operating frequency of the compressor.
Determining the lowest temperature that the heat exchanger can reach at the current ambient temperature, including: obtaining a maximum operating frequency of a compressor of an air conditioner; the lowest temperature that the heat exchanger can reach at the current ambient temperature when the compressor is operating at the maximum operating frequency is determined. Under the same environment temperature, when the maximum operating frequency of the air conditioner compressor is different, the refrigerating capacity of the air conditioner is different, so that the lowest temperature which can be reached by the air conditioner heat exchanger under the current environment temperature is different. In the early-stage test, the lowest temperature which can be reached by the air conditioner heat exchanger when the compressor operates at the maximum operating frequency is recorded under different environmental temperatures. In practical application, based on the maximum operating frequency of the current compressor, after the current environment temperature is determined, the lowest temperature which can be reached by the heat exchanger at the current environment temperature can be determined by searching recorded data in a previous-stage test.
In practical applications, the corresponding relationship between the current ambient temperature and the lowest temperature and the frequency increasing rate of the compressor may be established, and table 2 below shows an optional second corresponding relationship table between the current ambient temperature and the lowest temperature and the frequency increasing rate. In the second corresponding relation table, the frequency raising rate of the compressor and the current ambient temperature T r And the lowest temperature T min Difference Δ T (Δ T = T) r -T min ) And (4) positively correlating. Based on the current temperature and the lowest temperature, the corresponding frequency increasing rate of the compressor can be determined by searching the second corresponding relation table.
Table 2: second corresponding relation table
Optionally, determining the second operating frequency from the ramp rate based on the current first operating frequency of the compressor comprises calculating the second operating frequency according to the following formula:
wherein, F 10 Is the current first operating frequency, F, of the compressor 2 For the second operating frequency of the compressor,
at is the compressor ramp rate, Δ t is the length of time the compressor is operating at the second operating frequency.
And in the self-cleaning and frost-condensing stage of the air conditioner, the frequency-increasing rate of the compressor is determined according to the current ambient temperature and the lowest temperature which can be reached by the heat exchanger under the current ambient temperature, and the second operating frequency is calculated and determined according to the frequency-increasing rate on the basis of the current first operating frequency of the compressor so as to operate according to the second operating frequency. Like this, in air conditioner self-cleaning frost stage, progressively improve the operating power of compressor, moderate degree extension frost time for moisture near the heat exchanger condenses into the frost fully, combines more fully with the dust on heat exchanger surface, thereby realizes better self-cleaning effect.
And S104, controlling the air conditioner to perform self-cleaning operation.
And after determining the running frequency of the air conditioner compressor in the self-cleaning stage of the air conditioner, controlling the air conditioner to execute self-cleaning operation. When the indoor heat exchanger of the air conditioner is self-cleaned, the four-way valve of the air conditioner is adjusted, the indoor heat exchanger of the air conditioner is controlled to enter a frost condensation stage, the air conditioner operates in a refrigeration mode, moisture in indoor air is condensed on the surface of the heat exchanger of the indoor machine in a water droplet mode, the air conditioner in the later stage of frost condensation enables water droplets condensed on the surface of the heat exchanger in the earlier stage to be condensed into a frost layer in a mode of improving refrigerating capacity, and the frost layer is combined with dust on the surface of the heat exchanger and is peeled off; and then entering a defrosting stage, wherein the air conditioner operates in a heating mode, the temperature of the coil pipe of the indoor heat exchanger is increased, a frost layer is melted, dust is collected in the water receiving disc along with the melted water flow, and the self-cleaning operation of the indoor heat exchanger is completed. When the outdoor heat exchanger of the air conditioner is self-cleaned, the four-way valve of the air conditioner is adjusted, the outdoor heat exchanger of the air conditioner is controlled to enter a frost condensation stage, the air conditioner runs in a heating mode, moisture in outdoor air is condensed on the surface of the heat exchanger of the outdoor unit in a water droplet mode, the air conditioner in the later stage of frost condensation enables water droplets condensed on the surface of the heat exchanger in the earlier stage to be condensed into a frost layer in a mode of improving heating capacity, and the frost layer is combined with dust on the surface of the heat exchanger and is peeled off; and then entering a defrosting stage, wherein the air conditioner operates in a refrigerating mode, the temperature of the coil pipe of the outdoor heat exchanger is increased, a frost layer is melted, dust is collected in the water receiving disc along with melted water flow, and the self-cleaning operation of the outdoor heat exchanger is completed.
By adopting the control method for self-cleaning of the air conditioner, before the air conditioner performs self-cleaning operation, the ambient humidity on the surface of the heat exchanger is detected, if the ambient humidity is less than the preset humidity, the humidifier of the air conditioner is started for humidification, the compressor of the air conditioner is controlled to operate according to the first operation frequency, if the ambient humidity is greater than or equal to the preset humidity, the compressor is controlled to operate according to the second operation frequency, and then the air conditioner is continuously controlled to perform self-cleaning operation. Therefore, the frosting environment on the surface of the heat exchanger is known according to the relation between the environmental humidity on the surface of the heat exchanger and the preset humidity, the compressor is flexibly controlled to operate under different operating frequencies based on different frosting environments on the surface of the heat exchanger, the compressor is not easily damaged due to overlarge operating frequency of the compressor, the heat exchanger is not easily frosted or the defrosting effect is poor due to the fact that the operating frequency of the compressor is too low, and the self-cleaning function of the air conditioner can be well achieved.
In some embodiments, the control method for air conditioner self-cleaning further includes: after a humidifier of the air conditioner is started for humidification, an indoor fan of the air conditioner is controlled to rotate.
In the self-cleaning process of the indoor heat exchanger of the air conditioner, the humidifier of the air conditioner is started to humidify under the condition that the environment humidity is smaller than the preset humidity, the indoor fan is controlled to rotate, the spread of the moisture emitted by the humidifier in the air is accelerated, the environment humidity on the surface of the heat exchanger reaches the preset humidity as soon as possible, the self-cleaning operation of the air conditioner is started, the execution time of the self-cleaning operation of the air conditioner is shortened, and the user experience is improved.
In some embodiments, the control method for self-cleaning of an air conditioner further includes: after the air conditioner is controlled to finish one-time self-cleaning operation, obtaining the ambient temperature change rate between the heat exchanger and the fan in a preset time period after the air conditioner is started to operate; and controlling whether the air conditioner executes the self-cleaning operation again or not according to the magnitude relation between the ambient temperature change rate and the preset temperature change rate.
Here, the preset temperature change rate may be an ambient temperature change rate between the heat exchanger and the fan within a preset time period (for example, 5 to 10min after start) after the start operation of the air conditioner is detected when it is confirmed that the heat exchanger has no dust accumulation during the preliminary test. In a preset time period after the air conditioner is started and operated, due to the fact that dust of the heat exchanger is accumulated to influence the heat exchange coefficient of the heat exchanger, the ambient temperature change rate between the heat exchanger and the fan when dust accumulation exists in the air conditioner heat exchanger is smaller than the ambient temperature change rate between the heat exchanger and the fan when no dust accumulation exists in the air conditioner heat exchanger. Therefore, whether the air conditioner executes the self-cleaning operation again is controlled according to the magnitude relation between the environmental temperature change rate and the preset temperature change rate, and incomplete cleaning of the self-cleaning operation is avoided.
Optionally, controlling whether the air conditioner performs the self-cleaning operation again according to a magnitude relation between the ambient temperature change rate and a preset temperature change rate, including: controlling the air conditioner to execute the self-cleaning operation again under the condition that the ambient temperature change rate is smaller than the preset temperature change rate; and controlling the air conditioner to finish the self-cleaning operation under the condition that the ambient temperature change rate is greater than or equal to the preset temperature change rate.
When the environmental temperature change rate is smaller than the preset temperature change rate, indicating that the dust accumulation phenomenon still exists in the heat exchanger, and controlling the air conditioner to execute self-cleaning operation again, wherein the self-cleaning operation is not thorough; when the ambient temperature change rate is greater than or equal to the preset temperature change rate, the dust accumulation phenomenon of the heat exchanger is indicated to be temporarily absent, the self-cleaning operation is relatively thorough, and the air conditioner is controlled to finish the self-cleaning operation. Thus, the degree of cleaning of the air conditioner self-cleaning operation can be improved.
Referring to fig. 2, an embodiment of the present disclosure provides a control method for self-cleaning of an air conditioner, including the following steps:
s201: before the air conditioner performs self-cleaning operation, the environmental humidity on the surface of the heat exchanger is detected.
S202: and judging whether the environmental humidity is less than the preset humidity.
S203: and under the condition that the environmental humidity is less than the preset humidity, starting a humidifier of the air conditioner for humidification, and controlling a compressor of the air conditioner to operate according to a first operation frequency.
S204: and controlling the compressor to operate according to the second operating frequency under the condition that the ambient humidity is greater than or equal to the preset humidity.
S205: controlling the air conditioner to perform a self-cleaning operation.
S206: and after the air conditioner is controlled to complete one-time self-cleaning operation, obtaining the ambient temperature change rate between the heat exchanger and the fan in a preset time period after the air conditioner is started to operate.
S207: and judging whether the ambient temperature change rate is smaller than a preset temperature change rate or not.
S208: and controlling the air conditioner to perform the self-cleaning operation again under the condition that the ambient temperature change rate is less than the preset temperature change rate.
S209: and controlling the air conditioner to finish the self-cleaning operation under the condition that the ambient temperature change rate is greater than or equal to the preset temperature change rate.
In the embodiment of the disclosure, on one hand, the frosting environment on the surface of the heat exchanger is known according to the relation between the environmental humidity on the surface of the heat exchanger and the preset humidity, and the compressor is flexibly controlled to operate at different operating frequencies based on different frosting environments on the surface of the heat exchanger, so that the compressor is not easily damaged due to overlarge operating frequency of the compressor, the heat exchanger is not poor in frosting or defrosting effect due to the fact that the operating frequency of the compressor is too small, and the self-cleaning function of the air conditioner can be well realized; on the other hand, whether the air conditioner executes the self-cleaning operation again is controlled according to the size relation between the environmental temperature change rate between the heat exchanger and the fan and the preset temperature change rate, so that the self-cleaning operation is prevented from being incomplete, and the cleaning degree of the self-cleaning operation of the air conditioner is improved.
The embodiment of the present disclosure shown in fig. 3 provides a control device for self-cleaning of an air conditioner, which includes a processor (processor) 30 and a memory (memory) 31, and may further include a Communication Interface (Communication Interface) 32 and a bus 33. The processor 30, the communication interface 32 and the memory 31 may communicate with each other through a bus 33. Communication interface 32 may be used for information transfer. The processor 30 may call logic instructions in the memory 31 to perform the control method for self-cleaning of the air conditioner of the above-described embodiment.
In addition, the logic instructions in the memory 31 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 31 is used as a computer readable storage medium for storing software programs, computer executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 30 executes functional applications and data processing by executing program instructions/modules stored in the memory 31, that is, implements the control method for air conditioner self-cleaning in the above-described method embodiment.
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. Further, the memory 31 may include a high-speed random access memory, and may also include a nonvolatile memory.
By adopting the control device for self-cleaning of the air conditioner, before the air conditioner performs self-cleaning operation, the ambient humidity on the surface of the heat exchanger is detected, if the ambient humidity is less than the preset humidity, the humidifier of the air conditioner is started for humidification, the compressor of the air conditioner is controlled to operate according to the first operation frequency, if the ambient humidity is greater than or equal to the preset humidity, the compressor is controlled to operate according to the second operation frequency, and then the air conditioner is continuously controlled to perform self-cleaning operation. Like this, know the environment that frosts on heat exchanger surface according to the relation of the environment humidity on heat exchanger surface and preset humidity to nimble control compressor of the environment that frosts based on heat exchanger surface difference moves under different operating frequency, neither make the operating frequency of compressor too big and cause the damage to the compressor, also can not lead to the heat exchanger to congeal because the operating frequency undersize of compressor or change the frost effect poor, can realize air conditioner self-cleaning function better.
The embodiment of the disclosure provides an air conditioner, which comprises the above control device for self-cleaning 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 control method for air conditioner self-cleaning.
Embodiments of the present disclosure provide a computer program product including a computer program stored on a computer-readable storage medium, the computer program including program instructions that, when executed by a computer, cause the computer to perform the above-described control method for air conditioner 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, which is stored in a storage medium and includes one or more instructions for enabling 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 according to 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. The scope of the disclosed embodiments includes the full ambit of the claims, as well as all available equivalents of the claims. As used in this application, although the terms "first," "second," etc. may be used in this application to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, unless the meaning of the description changes, so long as all occurrences of the "first element" are renamed consistently and all occurrences of the "second element" are renamed consistently. The first and second elements are both elements, but may not be the same element. Furthermore, the words used in the specification are words of description for example only and are not limiting upon 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 phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, or apparatus comprising the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment 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 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 (6)
1. A control method for self-cleaning of an air conditioner is characterized by comprising the following steps:
before the air conditioner performs self-cleaning operation, detecting the environmental humidity on the surface of the heat exchanger;
starting a humidifier of the air conditioner to humidify under the condition that the environmental humidity is less than the preset humidity, and controlling a compressor of the air conditioner to operate according to a first operating frequency;
controlling the compressor to operate according to a second operating frequency under the condition that the environmental humidity is greater than or equal to the preset humidity;
controlling the air conditioner to perform a self-cleaning operation;
determining the first operating frequency as follows: obtaining the humidification power of the humidifier; determining the first operating frequency according to the humidification power;
determining the first operating frequency according to the humidification power comprises calculating the first operating frequency according to the following formula:
F 1 =P/P 0 ×F 0
wherein, F 1 Is the first operating frequency, F, of the compressor 0 Is the initial operating frequency, P, of the compressor 0 Presetting humidification power for a humidifier, wherein P is the humidification power of the humidifier;
determining the second operating frequency as follows: obtaining a current ambient temperature; determining the lowest temperature that the heat exchanger can reach at the current ambient temperature; determining the frequency increasing rate of the compressor according to the current environment temperature and the lowest temperature; determining the second operating frequency from the ramp rate based on a current first operating frequency of the compressor;
determining the second operating frequency according to the ramp rate based on the current first operating frequency of the compressor, including calculating the second operating frequency according to the following formula:
F 2 =F 10 +∂×∆t
wherein, F 10 Is the current first operating frequency, F, of the compressor 2 The second running frequency of the compressor is 8706, the frequency increasing rate of the compressor is Δ t, and the time length of the compressor running according to the second running frequency is Δ t.
2. The control method according to claim 1, characterized by further comprising:
and after the humidifier of the air conditioner is started for humidification, controlling an indoor fan of the air conditioner to rotate.
3. The control method according to claim 1 or 2, characterized by further comprising:
after the air conditioner is controlled to finish one-time self-cleaning operation, obtaining the ambient temperature change rate between the heat exchanger and the fan in a preset time period after the air conditioner is started to operate;
and controlling the air conditioner to execute self-cleaning operation again according to the magnitude relation between the ambient temperature change rate and a preset temperature change rate.
4. The control method according to claim 3, wherein the controlling whether the air conditioner performs the self-cleaning operation again according to the magnitude relation between the ambient temperature change rate and a preset temperature change rate comprises:
under the condition that the ambient temperature change rate is smaller than the preset temperature change rate, controlling the air conditioner to execute self-cleaning operation again;
and controlling the air conditioner to finish the self-cleaning operation under the condition that the ambient temperature change rate is greater than or equal to the preset temperature change rate.
5. A control device for self-cleaning of air conditioners, comprising a processor and a memory storing program instructions, characterized in that the processor is configured to carry out the control method for self-cleaning of air conditioners according to any one of claims 1 to 4 when executing the program instructions.
6. An air conditioner characterized by comprising the control device for self-cleaning of an air conditioner according to claim 5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110552577.3A CN113357789B (en) | 2021-05-20 | 2021-05-20 | Control method and device for self-cleaning of air conditioner and air conditioner |
| PCT/CN2021/138431 WO2022242144A1 (en) | 2021-05-20 | 2021-12-15 | Method and apparatus for controlling self-cleaning of air conditioner, and air conditioner |
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| CN202110552577.3A CN113357789B (en) | 2021-05-20 | 2021-05-20 | Control method and device for self-cleaning of air conditioner and air conditioner |
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| CN113357789B (en) * | 2021-05-20 | 2022-10-28 | 青岛海尔空调器有限总公司 | Control method and device for self-cleaning of air conditioner and air conditioner |
| CN114061034B (en) * | 2021-10-28 | 2023-01-13 | 青岛海尔空调器有限总公司 | Air conditioner self-cleaning control method and device and air conditioner |
| CN116412516A (en) * | 2022-11-24 | 2023-07-11 | 青岛海尔空调器有限总公司 | Self-cleaning mode protection method and device of air conditioner and air conditioner |
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| JP2009250596A (en) * | 2008-04-11 | 2009-10-29 | Panasonic Corp | Air cleaner with humidifying function |
| JP5700069B2 (en) * | 2013-05-31 | 2015-04-15 | ダイキン工業株式会社 | Humidity control device |
| CN106679111B (en) * | 2017-01-23 | 2020-04-14 | 深圳创维空调科技有限公司 | Automatic cleaning treatment method and system for heat exchanger of air conditioner |
| CN107525216A (en) * | 2017-07-26 | 2017-12-29 | 青岛海尔空调器有限总公司 | Air conditioner and its control method with self-cleaning function |
| CN108413558A (en) * | 2018-01-26 | 2018-08-17 | 青岛海尔空调器有限总公司 | A kind of control method and device of air-conditioning |
| JP2018189360A (en) * | 2018-05-29 | 2018-11-29 | 日立ジョンソンコントロールズ空調株式会社 | Air-conditioning machine |
| CN109210682A (en) * | 2018-09-10 | 2019-01-15 | 青岛海尔空调器有限总公司 | The self-cleaning control method and device of air-conditioning, air conditioner, storage medium |
| CN109237746B (en) * | 2018-09-12 | 2021-04-20 | 青岛海尔空调器有限总公司 | Air conditioner and control method thereof |
| JP6743869B2 (en) * | 2018-11-14 | 2020-08-19 | ダイキン工業株式会社 | Air conditioner |
| CN109916039B (en) * | 2019-03-21 | 2021-01-29 | 青岛海尔空调器有限总公司 | Self-cleaning humidification control method for air conditioner |
| CN110057030B (en) * | 2019-03-21 | 2021-01-29 | 青岛海尔空调器有限总公司 | Self-cleaning humidification control method for air conditioner |
| CN109916038B (en) * | 2019-03-21 | 2020-11-03 | 青岛海尔空调器有限总公司 | Self-cleaning humidification control method for air conditioner |
| CN110243055B (en) * | 2019-06-14 | 2020-12-18 | 海信家电集团股份有限公司 | Air conditioner and self-cleaning method thereof |
| CN110500701A (en) * | 2019-08-23 | 2019-11-26 | 珠海格力电器股份有限公司 | A kind of self cleaning method, device, storage medium and air-conditioning |
| JP7078856B2 (en) * | 2019-09-02 | 2022-06-01 | ダイキン工業株式会社 | Air conditioning system |
| CN110736191B (en) * | 2019-09-30 | 2021-12-21 | 重庆海尔空调器有限公司 | Control method and device for self-cleaning of air conditioner and air conditioner |
| CN110986280A (en) * | 2019-12-03 | 2020-04-10 | 青岛海尔空调器有限总公司 | Method and device for self-cleaning control of air conditioner and air conditioner |
| CN113357789B (en) * | 2021-05-20 | 2022-10-28 | 青岛海尔空调器有限总公司 | Control method and device for self-cleaning of air conditioner and air conditioner |
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