CN113357791B - 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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- 238000004140 cleaning Methods 0.000 title claims abstract description 102
- 238000000034 method Methods 0.000 title claims abstract description 54
- 230000005494 condensation Effects 0.000 claims abstract description 14
- 238000009833 condensation Methods 0.000 claims abstract description 14
- 238000010257 thawing Methods 0.000 claims abstract description 13
- 230000002441 reversible effect Effects 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000005057 refrigeration Methods 0.000 claims description 8
- 238000005485 electric heating Methods 0.000 claims description 7
- 230000001133 acceleration Effects 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 230000008020 evaporation Effects 0.000 abstract description 11
- 238000001704 evaporation Methods 0.000 abstract description 11
- 241000894006 Bacteria Species 0.000 abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 239000011888 foil Substances 0.000 abstract description 4
- 238000009395 breeding Methods 0.000 abstract description 2
- 230000001488 breeding effect Effects 0.000 abstract description 2
- 230000003111 delayed effect Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 description 21
- 239000000428 dust Substances 0.000 description 13
- 230000000875 corresponding effect Effects 0.000 description 9
- 239000011324 bead Substances 0.000 description 6
- 238000004891 communication Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 4
- 238000004590 computer program Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000005030 aluminium foil Substances 0.000 description 3
- 230000001580 bacterial effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000007791 dehumidification Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
-
- 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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
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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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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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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: after receiving an air conditioner self-cleaning instruction, controlling the air conditioner to execute self-cleaning operation comprising a frost condensation stage and a defrosting stage; and under the condition that the air conditioner completes self-cleaning operation, controlling a fan of the air conditioner to reversely rotate to dry moisture on the surface of a heat exchanger of the air conditioner. After the self-cleaning of the air conditioner is finished, the air conditioner fan is switched to turn, the characteristic that the fan reversely rotates to generate heat is utilized, the water evaporation on the surface of the heat exchanger is accelerated, the humidity of the internal environment of the air conditioner is reduced, bacteria breeding can be effectively avoided, the corrosion process of an aluminum foil of the air conditioner heat exchanger can be delayed, and therefore the use experience of the air conditioner is improved, and the service life of the air conditioner is prolonged. 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, wherein in the frost condensation stage, the air conditioner operates in a refrigeration mode at the early stage of frost condensation, water in indoor air is condensed on the surface of a heat exchanger of an indoor unit in a bead form, the air conditioner condenses the beads condensed on the surface of the heat exchanger at the early stage into a frost layer by improving the refrigeration capacity at the later stage of frost condensation, 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 self-cleaning operation is completed.
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:
after the air conditioner completes self-cleaning operation, the internal environment of the air conditioner is relatively wet, bacteria are easy to breed, corrosion to an aluminum foil of the air conditioner heat exchanger is aggravated, and therefore the use experience of the air conditioner is reduced, and the service life of the air conditioner is shortened.
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 and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended to be 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 after the self-cleaning operation of the existing air conditioner is completed, the internal environment of the air conditioner is relatively wet, bacteria are easy to breed, corrosion to an aluminum foil of an air conditioner heat exchanger is aggravated, the use experience of the air conditioner is further reduced, and the service life of the air conditioner is shortened.
In some embodiments, a control method for air conditioner self-cleaning includes: after receiving an air conditioner self-cleaning instruction, controlling the air conditioner to execute self-cleaning operation comprising a frost condensation stage and a defrosting stage; and under the condition that the air conditioner completes self-cleaning operation, controlling a fan of the air conditioner to reversely rotate so as to dry moisture on the surface of a heat exchanger of the air conditioner.
In some embodiments, the control device for self-cleaning of an air conditioner comprises a processor and a memory storing program instructions, the processor being configured to execute the aforementioned control method for self-cleaning of an air conditioner 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:
and after receiving the self-cleaning instruction of the air conditioner, controlling the air conditioner to execute self-cleaning operation comprising a frost condensation stage and a frost dissolving stage, and controlling a fan of the air conditioner to reversely rotate to dry moisture on the surface of a heat exchanger of the air conditioner under the condition that the self-cleaning operation of the air conditioner is completed. Like this, after the air conditioner automatically cleaning, the conversion air conditioner fan turns to, utilizes the fan reversal characteristics of generating heat for the water evaporation on heat exchanger surface reduces air conditioner internal environment humidity, can effectively avoid bacterial growing and delay the corruption process of air conditioner heat exchanger's aluminium foil to improve the use of air conditioner and experience and improve the life of air conditioner.
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 in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged as appropriate for the embodiments of the disclosure described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The term "plurality" means two or more unless otherwise specified. In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B. The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. 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:
s101: and after receiving the self-cleaning instruction of the air conditioner, controlling the air conditioner to execute self-cleaning operation comprising a frost condensation stage and a defrosting stage.
A user can send a self-cleaning instruction to the air conditioner through a remote controller and the like according to actual requirements. And after receiving the self-cleaning instruction of the air conditioner, the air conditioner controls 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 runs in a refrigeration mode, moisture in indoor air is condensed on the surface of the heat exchanger of the indoor machine in a bead form, the air conditioner enables the beads condensed on the surface of the heat exchanger in the early stage to be condensed into a frost layer in a mode of improving refrigerating capacity in the later stage of frost condensation, 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 outdoor 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 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.
S102: and under the condition that the air conditioner completes self-cleaning operation, controlling a fan of the air conditioner to reversely rotate to dry moisture on the surface of a heat exchanger of the air conditioner.
Under the condition that the indoor heat exchanger of the air conditioner completes self-cleaning operation, the internal environment of the indoor unit of the air conditioner is relatively humid, and an indoor fan of the air conditioner is controlled to reversely rotate so as to dry moisture on the surface of the indoor heat exchanger of the air conditioner. Under the condition that the air conditioner outdoor heat exchanger completes self-cleaning operation, the internal environment of the air conditioner outdoor unit is relatively humid, and an outdoor fan of the air conditioner is controlled to reversely run so as to dry moisture on the surface of the air conditioner outdoor heat exchanger.
Optionally, controlling a fan of the air conditioner to run in reverse includes: controlling the fan to reversely rotate at the first rotating speed for a first time period; the method comprises the steps that after a fan reversely rotates at a first rotating speed for a first time, first outlet air humidity at an air outlet of an air conditioner is obtained; under the condition that the first outlet air humidity is larger than the preset humidity, the rotating speed of the fan in the reverse rotation operation is controlled to be increased to a second rotating speed on the basis of the first rotating speed in a mode of gradually reducing the acceleration, and the rotating speed of the fan in the reverse rotation operation is controlled to be decreased to the first rotating speed on the basis of the second rotating speed in a mode of gradually increasing the acceleration; and controlling the fan to reversely run according to the first rotating speed.
Here, the first duration is in a range of [5min, 10min ], for example, 5min (minutes), 6min, 8min, 10 min. In the experiment in earlier stage, control air conditioner fan rotates the operation for the first time according to first rotational speed reversal, and records the air outlet humidity of air conditioner air outlet department this moment when confirming that air conditioner heat exchanger surface does not have obvious drop of water. The preset humidity is the outlet air humidity with the most frequent occurrence frequency in the recorded outlet air humidities. And a humidity sensor is arranged at the air outlet of the air conditioner and used for detecting the air outlet humidity at the air outlet of the air conditioner. After control fan was first time long according to the first speed of rotation reversal operation, utilized humidity transducer to detect the first air-out humidity that obtains air conditioner air outlet department, if first air-out humidity is greater than predetermineeing humidity, it is great to show the inside environment humidity of air conditioner, and heat exchanger surface moisture is more, promotes the evaporation of moisture with higher speed of the reversal speed of fan.
The second rotation speed and the first rotation speed satisfy the following relationship:
wherein r is 2 At the second rotational speed, r 1 The first rotation speed is the first rotation speed,
is a scaling factor.
Has a value range of [1.6, 2.1 ]]E.g. 1.6, 1.8, 2, 2.1.
The long-time high-speed reversal operation of fan harms the life of fan easily, and moreover, fan reversal operation generates heat, influences the normal refrigeration of air conditioner or heats to a certain extent easily. In consideration of the above factors, in the technical scheme of the disclosure, under the condition that the first outlet air humidity is greater than the preset humidity, when the reverse rotation speed of the fan is increased, on one hand, the maximum rotation speed of the reverse rotation of the fan is limited, on the other hand, the discontinuity of the high-speed reverse rotation operation of the fan is kept, and when the surface moisture evaporation of the air conditioner heat exchanger is accelerated, the damage to the air conditioner fan and the influence on the normal refrigeration or heating of the air conditioner are avoided as much as possible.
By adopting the control method for self-cleaning of the air conditioner, after the self-cleaning instruction of the air conditioner is received, the air conditioner is controlled to execute the self-cleaning operation comprising the defrosting stage and the defrosting stage, and under the condition that the self-cleaning operation of the air conditioner is completed, the fan of the air conditioner is controlled to reversely rotate so as to dry the moisture on the surface of the heat exchanger of the air conditioner. Like this, after the air conditioner automatically cleaning, the conversion air conditioner fan turns to, utilizes the fan reversal characteristics of generating heat for the water evaporation on heat exchanger surface reduces air conditioner internal environment humidity, can effectively avoid bacterial growing and delay the corruption process of air conditioner heat exchanger's aluminium foil to improve the use of air conditioner and experience and improve the life of air conditioner.
In some embodiments, the control method for self-cleaning of an air conditioner further includes: after controlling the fan to reversely rotate for a second time, obtaining a first humidity change rate of the air outlet humidity at the air outlet of the air conditioner; and under the condition that the first humidity change rate is smaller than a first preset humidity change rate, switching the operation mode of the air conditioner to a preset operation mode.
Here, the value of the second duration is [10min, 15min ], for example, 10min, 12min, 13min, 15 min. When the indoor heat exchanger of the air conditioner is self-cleaned, the preset operation mode of the air conditioner is a heating mode; when the outdoor heat exchanger of the air conditioner is self-cleaned, the preset operation mode of the air conditioner is a refrigeration mode. In the earlier stage experiment, after the air conditioner finishes self-cleaning, the air outlet humidity of the air outlet of the air conditioner at the moment is recorded. And controlling the air conditioner fan to reversely rotate at the first rotating speed for a second time, recording the air outlet humidity of the air conditioner air outlet at the moment when the surface of the air conditioner heat exchanger is confirmed to have no obvious water drops, and calculating the humidity change rate of the air conditioner air outlet at the moment. The first preset humidity change rate is a humidity change rate that occurs most frequently among a plurality of humidity change rates recorded. And after controlling the fan to operate for the second time length according to the reverse rotation, calculating to obtain a first humidity change rate of the air outlet humidity at the air outlet of the air conditioner, and if the first humidity change rate is smaller than a first preset humidity change rate, indicating that the internal environment humidity of the air conditioner is larger and the surface moisture of the heat exchanger is more, and switching the operation mode of the air conditioner to a preset operation mode to accelerate the evaporation of the moisture.
In some embodiments, the control method for air conditioner self-cleaning further includes: after the operation mode of the air conditioner is switched to the preset operation mode and the air conditioner operates for a third time, a second humidity change rate of the air outlet humidity at the air outlet of the air conditioner is obtained; and under the condition that the second humidity change rate is smaller than a second preset humidity change rate, improving the operating frequency of the compressor of the air conditioner.
Here, the value of the third time period is [5min, 10min ], for example, 5min (min), 6min, 8min, 10 min. When the indoor heat exchanger of the air conditioner is self-cleaned, the preset operation mode of the air conditioner is a heating mode; when the outdoor heat exchanger of the air conditioner is self-cleaned, the preset operation mode of the air conditioner is a refrigeration mode. In the earlier stage experiment, when the operation mode of the air conditioner is switched to the preset operation mode, the air outlet humidity at the air outlet of the air conditioner is recorded. And after the operation mode of the air conditioner is switched to the preset operation mode and the air conditioner operates for a third time, recording the air outlet humidity at the air outlet of the air conditioner when no water drops exist on the surface of the heat exchanger of the air conditioner, and calculating the humidity change rate at the air outlet of the air conditioner at the moment. The second preset humidity change rate is a humidity change rate that occurs most frequently among the plurality of recorded humidity change rates. After the operation mode of the air conditioner is switched to the preset operation mode for a third time period, calculating to obtain a second humidity change rate of the outlet air humidity of the air conditioner (namely, the humidity change rate of the outlet air of the air conditioner is calculated from the time when the operation mode of the air conditioner is switched to the preset operation mode to the third time period), and if the second humidity change rate is smaller than the second preset humidity change rate, the fact that the internal environment of the air conditioner is high in humidity and the surface of a heat exchanger is high in moisture is shown, and the evaporation of the moisture is accelerated by improving the operation frequency of a compressor of the air conditioner.
Optionally, increasing the operating frequency of the compressor of the air conditioner includes: obtaining a second outlet air humidity at the air outlet of the air conditioner; calculating a humidity difference value between the second outlet air humidity and the preset humidity, and determining an operation frequency increment corresponding to the humidity difference value; the operating frequency of the compressor is increased in increments of the operating frequency based on the current operating frequency of the compressor.
Here, the selectable value range of the preset humidity is [ 40%, 60% ], for example, 40%, 50%, 55%, 60%. In practical application, a corresponding relation table of the humidity difference value and the operation frequency increment of the compressor is established, and in the corresponding relation table, the operation frequency increment and the humidity difference value are positively correlated. Based on the calculated humidity difference, the corresponding running frequency increment of the compressor can be determined by searching a pre-established corresponding relation table. Therefore, the operation frequency increment of the compressor is determined by utilizing the humidity difference value of the second outlet air humidity and the preset humidity, and then on the basis of the current operation frequency of the compressor, the operation frequency of the compressor is increased according to the operation frequency increment, so that the compressor can be accurately controlled, and the dehumidification effect of the heat exchanger after the self-cleaning operation of the air conditioner is better realized.
In some embodiments, the air conditioner includes an electric heating device provided to the heat exchanger; the control method for self-cleaning of the air conditioner further comprises the following steps: after the operation mode of the air conditioner is switched to the preset operation mode and the air conditioner operates for a third time, a second humidity change rate of the outlet air humidity at the air outlet of the air conditioner is obtained; and under the condition that the second humidity change rate is smaller than a second preset humidity change rate, controlling the electric heating device to operate.
After the operation mode of the air conditioner is switched to the preset operation mode and the air conditioner is operated for the third time, the second humidity change rate of the air outlet humidity at the air outlet of the air conditioner is calculated, if the second humidity change rate is smaller than the second preset humidity change rate, the fact that the humidity of the internal environment of the air conditioner is high and the surface moisture of the heat exchanger is high is shown, the evaporation of the surface moisture of the heat exchanger is accelerated by controlling the operation of the electric heating device, and the dehumidification effect of the heat exchanger after the self-cleaning operation of the air conditioner is favorably realized.
In some embodiments, the control method for self-cleaning of an air conditioner further includes: 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; and determining whether to control the air conditioner to execute 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 starting) after the start operation of the air conditioner is detected when it is determined that no dust is accumulated in the heat exchanger in the early stage test process. 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, determining whether to control the air conditioner to perform 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: and after receiving the self-cleaning instruction of the air conditioner, controlling the air conditioner to execute self-cleaning operation comprising a frost condensation stage and a defrosting stage.
S202: and under the condition that the air conditioner completes self-cleaning operation, controlling a fan of the air conditioner to reversely rotate to dry moisture on the surface of a heat exchanger of the air conditioner.
S203: and after controlling the fan to reversely operate for the second time, obtaining a first humidity change rate of the air outlet humidity at the air outlet of the air conditioner.
S204: and under the condition that the first humidity change rate is smaller than a first preset humidity change rate, switching the operation mode of the air conditioner to a preset operation mode.
S205: and after the operation mode of the air conditioner is switched to the preset operation mode and the air conditioner operates for a third time, obtaining a second humidity change rate of the outlet air humidity at the air outlet of the air conditioner.
S206: and under the condition that the second humidity change rate is smaller than a second preset humidity change rate, improving the operating frequency of a compressor of the air conditioner and controlling the electric heating device to operate.
S207: 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.
S208: and determining whether to control the air conditioner to execute the self-cleaning operation again or not according to the magnitude relation between the ambient temperature change rate and the preset temperature change rate.
By adopting the control method for self-cleaning of the air conditioner, after the self-cleaning of the air conditioner is finished, the air conditioner fan is switched to turn, the characteristic of reverse heating of the fan is utilized, the evaporation of water on the surface of the heat exchanger is accelerated, the humidity of the environment in the air conditioner is reduced, the breeding of bacteria can be effectively avoided, and the corrosion process of an aluminum foil of the heat exchanger of the air conditioner is delayed, so that the use experience of the air conditioner is improved, the service life of the air conditioner is prolonged, meanwhile, the humidity change rate of the air outlet of the air conditioner is obtained by calculation, the operation mode of the air conditioner is switched/the electric heating device is controlled to operate according to the relation between the humidity change rate and the preset humidity change rate, the evaporation of water on the surface of the heat exchanger is accelerated, the dehumidification effect of the heat exchanger after the self-cleaning operation of the air conditioner is favorably realized, in addition, whether the self-cleaning operation of the air conditioner is executed again is controlled according to the size relation between the environment temperature change rate and the preset temperature change rate, the cleaning degree of the self-cleaning operation of the air conditioner can be improved by avoiding the incomplete cleaning of the self-cleaning operation.
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 a computer-readable storage medium and can be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 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, after the self-cleaning instruction of the air conditioner is received, the air conditioner is controlled to execute the self-cleaning operation comprising the defrosting stage and the defrosting stage, and under the condition that the self-cleaning operation of the air conditioner is completed, the fan of the air conditioner is controlled to reversely rotate so as to dry the moisture on the surface of the heat exchanger of the air conditioner. Like this, after the air conditioner automatically cleaning, the conversion air conditioner fan turns to, utilizes the fan reversal characteristics of generating heat for the water evaporation on heat exchanger surface reduces air conditioner internal environment humidity, can effectively avoid bacterial growing and delay the corruption process of air conditioner heat exchanger's aluminium foil to improve the use of air conditioner and experience and improve the life of air conditioner.
The embodiment of the disclosure provides an air conditioner, which comprises the 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 only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (9)
1. A control method for self-cleaning of an air conditioner is characterized by comprising the following steps:
after receiving an air conditioner self-cleaning instruction, controlling the air conditioner to execute self-cleaning operation comprising a frost condensation stage and a defrosting stage;
under the condition that the air conditioner completes the self-cleaning operation, controlling a fan of the air conditioner to reversely rotate so as to dry moisture on the surface of a heat exchanger of the air conditioner;
further comprising:
after controlling the fan to reversely rotate for a second time, obtaining a first humidity change rate of the air outlet humidity at the air outlet of the air conditioner;
under the condition that the first humidity change rate is smaller than a first preset humidity change rate, switching the operation mode of the air conditioner to a preset operation mode;
when the indoor heat exchanger of the air conditioner is self-cleaned, the preset operation mode is a heating mode; when the outdoor heat exchanger of the air conditioner is self-cleaned, the preset operation mode is a refrigeration mode.
2. The control method according to claim 1, wherein the controlling of the fan reverse rotation operation of the air conditioner includes:
controlling the fan to reversely rotate at a first rotating speed for a first time period;
after the fan reversely rotates at the first rotating speed for the first time, obtaining first air outlet humidity at the air outlet of the air conditioner;
under the condition that the first outlet air humidity is larger than the preset humidity, controlling the rotating speed of the fan in the reverse rotation operation to be increased to a second rotating speed on the basis of the first rotating speed in a mode of gradually reducing the acceleration, and controlling the rotating speed of the fan in the reverse rotation operation to be decreased to the first rotating speed on the basis of the second rotating speed in a mode of gradually increasing the acceleration;
and controlling the fan to reversely rotate according to the first rotating speed.
3. The control method according to claim 1, characterized by further comprising:
after the operation mode of the air conditioner is switched to the preset operation mode and the air conditioner operates for a third time, a second humidity change rate of the air outlet humidity at the air outlet of the air conditioner is obtained;
and under the condition that the second humidity change rate is smaller than a second preset humidity change rate, improving the operating frequency of the compressor of the air conditioner.
4. The control method of claim 3, wherein the increasing the operating frequency of the compressor of the air conditioner comprises:
obtaining a second outlet air humidity at the air outlet of the air conditioner;
calculating a humidity difference value between the second outlet air humidity and a preset humidity, and determining an operation frequency increment corresponding to the humidity difference value;
and increasing the operating frequency of the compressor according to the operating frequency increment on the basis of the current operating frequency of the compressor.
5. The control method according to claim 1, wherein the air conditioner includes an electric heating device provided to the heat exchanger; the control method further comprises the following steps:
after the operation mode of the air conditioner is switched to the preset operation mode and the air conditioner operates for a third time, a second humidity change rate of the air outlet humidity at the air outlet of the air conditioner is obtained;
and under the condition that the second humidity change rate is smaller than a second preset humidity change rate, controlling the electric heating device to operate.
6. The control method according to any one of claims 1 to 5, 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 determining whether to control the air conditioner to execute the self-cleaning operation again according to the magnitude relation between the ambient temperature change rate and a preset temperature change rate.
7. The control method according to claim 6, wherein the determining whether to control the air conditioner to perform the self-cleaning operation again according to the magnitude relationship between the ambient temperature change rate and a preset temperature change rate comprises:
controlling the air conditioner to execute 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.
8. 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 7 when executing the program instructions.
9. An air conditioner, characterized by comprising the control device for self-cleaning of an air conditioner according to claim 8.
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| CN202110554296.1A CN113357791B (en) | 2021-05-20 | 2021-05-20 | Control method and device for self-cleaning of air conditioner and air conditioner |
| PCT/CN2021/138393 WO2022242141A1 (en) | 2021-05-20 | 2021-12-15 | Control method and apparatus for implementing self-cleaning function of air conditioner, and air conditioner |
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| CN202110554296.1A CN113357791B (en) | 2021-05-20 | 2021-05-20 | Control method and device for self-cleaning of air conditioner and air conditioner |
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| CN113357791B (en) * | 2021-05-20 | 2022-09-06 | 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 |
| CN114264039A (en) * | 2021-12-15 | 2022-04-01 | 三菱重工海尔(青岛)空调机有限公司 | Defrosting control method for air conditioner |
| CN114719407B (en) * | 2022-02-21 | 2023-11-07 | 宁波奥克斯电气股份有限公司 | Dust removal control method and device for condenser and air conditioner |
| CN114877485B (en) * | 2022-03-17 | 2024-02-20 | 青岛海尔空调器有限总公司 | Control method and device for air conditioner moisture prevention, air conditioner and storage medium |
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| CN113357791B (en) * | 2021-05-20 | 2022-09-06 | 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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| WO2022242141A1 (en) | 2022-11-24 |
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