CN113280486B - Air conditioner, self-cleaning method thereof and computer storage medium - Google Patents
Air conditioner, self-cleaning method thereof and computer storage medium Download PDFInfo
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- CN113280486B CN113280486B CN202110606657.2A CN202110606657A CN113280486B CN 113280486 B CN113280486 B CN 113280486B CN 202110606657 A CN202110606657 A CN 202110606657A CN 113280486 B CN113280486 B CN 113280486B
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- air conditioner
- heat exchanger
- indoor heat
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- cleaning
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/43—Defrosting; Preventing freezing of indoor units
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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
- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G7/00—Cleaning by vibration or pressure waves
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/40—Pressure, e.g. wind pressure
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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
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/22—Cleaning ducts or apparatus
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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
Abstract
The invention discloses a self-cleaning method of an air conditioner, which comprises the following steps: acquiring the filth blockage grade of an indoor heat exchanger of the air conditioner; and when the filth blockage grade is greater than the preset filth blockage grade, controlling the air conditioner to carry out self-cleaning according to a first cleaning mode, wherein in the self-cleaning process in the first cleaning mode, the ultrasonic transducer is started, and the greater the filth blockage grade is, the higher the filth blockage degree of the indoor heat exchanger is. The invention also discloses an air conditioner and a computer storage medium. According to the invention, the filth blockage grade of the indoor heat exchanger is obtained, and the self-cleaning effect of the air conditioner is enhanced through the ultrasonic transducer when the filth blockage grade is larger, so that stubborn dirt is removed, and a better cleaning effect is realized.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner, a self-cleaning method thereof and a computer storage medium.
Background
After the air conditioner is used for a long time, a large amount of dust and dirt enter a heat exchanger of the air conditioner, and the dust is accumulated on the heat exchanger. This not only influences the heat transfer performance of heat exchanger, increases the energy consumption, reduces heat transfer effect, still can breed a large amount of bacteriums on the heat exchanger, causes user's health problem, consequently needs regularly to wash the heat exchanger.
At present, the purpose of cleaning the heat exchanger is achieved through a frosting and defrosting mode, but the cleaning effect of frosting and defrosting is poor for stubborn dirt.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide an air conditioner, a self-cleaning method thereof and a computer storage medium, aiming at improving the cleaning effect of the air conditioner on stubborn dirt.
In order to achieve the above object, the present invention provides a self-cleaning method of an air conditioner, comprising the steps of:
acquiring the filth blockage grade of an indoor heat exchanger of the air conditioner;
and when the filth blockage grade is greater than a preset filth blockage grade, controlling the air conditioner to carry out self-cleaning according to a first cleaning mode, wherein in the self-cleaning process in the first cleaning mode, an ultrasonic transducer is started, and the greater the filth blockage grade is, the higher the filth blockage degree of the indoor heat exchanger is.
Optionally, the step of controlling the air conditioner to perform self-cleaning according to a first cleaning mode includes:
a condensed water generation stage: controlling the air conditioner to operate a refrigeration mode according to a first operation parameter so as to enable the indoor heat exchanger to generate condensed water;
and (3) frosting stage: controlling the air conditioner to perform refrigerating operation according to a second operation parameter so as to frost the indoor heat exchanger;
a decontamination stage: controlling the air conditioner to operate in a heating mode according to a third operation parameter;
wherein the ultrasonic transducer is operated in the decontamination phase.
Optionally, in the condensed water generating stage, when a duration of the air conditioner operating the cooling mode according to the first operation parameter is longer than a preset duration, the ultrasonic transducer is operated until the condensed water generating stage is finished.
Optionally, when the temperature of the coil of the indoor heat exchanger is lower than a first preset temperature, the air conditioner is controlled to be switched from the frosting stage to the decontamination stage.
Optionally, when the temperature of the coil of the indoor heat exchanger is higher than a second preset temperature, controlling the air conditioner to end the decontamination phase, wherein the second preset temperature is higher than the first preset temperature.
Optionally, after the step of obtaining the filth blockage level of the indoor heat exchanger of the air conditioner, the method further includes:
and when the filth blockage grade is less than or equal to the preset filth blockage grade, controlling the air conditioner to carry out self-cleaning according to a second cleaning mode, wherein the ultrasonic transducer is controlled to be in a closed state in the self-cleaning process in the second cleaning mode.
Optionally, the step of obtaining the filth blockage level of the indoor heat exchanger of the air conditioner comprises:
acquiring the current fan static pressure of the indoor heat exchanger;
and determining the filth blockage grade according to the difference value of the current fan static pressure and a preset static pressure.
Optionally, the step of obtaining the current fan static pressure of the indoor heat exchanger includes:
acquiring the ambient temperature in the action space of the heat exchanger;
acquiring the current running current value of an indoor fan of the heat exchanger;
and determining the current static pressure of the fan according to the environment temperature and the current running current value.
Optionally, the self-cleaning method of the air conditioner further includes:
when the air conditioner operates for the first time, obtaining the initial fan static pressure of the indoor heat exchanger, wherein the difference value between the fan rotating speed when the current fan static pressure is obtained and the fan rotating speed when the initial fan static pressure is obtained is smaller than a preset difference value;
and taking the initial fan static pressure as the preset static pressure, and storing the preset static pressure.
Further, to achieve the above object, the present invention also provides an air conditioner including: a memory, a processor and a self-cleaning program of an air conditioner stored on the memory and operable on the processor, the self-cleaning program of the air conditioner implementing the steps of the self-cleaning method of the air conditioner as described in any one of the above when executed by the processor.
Further, to achieve the above object, the present invention also provides a computer storage medium having stored thereon a self-cleaning program of an air conditioner, which when executed by a processor, implements the steps of the self-cleaning method of the air conditioner as recited in any one of the above.
The air conditioner, the self-cleaning method thereof and the computer storage medium provided by the embodiment of the invention acquire the filth blockage grade of the indoor heat exchanger of the air conditioner; and when the filth blockage grade is greater than the preset filth blockage grade, controlling the air conditioner to carry out self-cleaning according to a first cleaning mode, wherein in the self-cleaning process in the first cleaning mode, the ultrasonic transducer is started, and the greater the filth blockage grade is, the higher the filth blockage degree of the indoor heat exchanger is. According to the invention, the filth blockage grade of the indoor heat exchanger is obtained, and the self-cleaning effect of the air conditioner is enhanced through the ultrasonic transducer when the filth blockage grade is larger, so that stubborn dirt is removed, and a better cleaning effect is realized.
Drawings
Fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart diagram illustrating a self-cleaning method of an air conditioner according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart illustrating a self-cleaning method of an air conditioner according to another embodiment of the present invention;
FIG. 4 is a schematic flow chart illustrating a self-cleaning method for an air conditioner according to still another embodiment of the present invention;
FIG. 5 is a schematic flow chart illustrating a self-cleaning method of an air conditioner according to another embodiment of the present invention;
FIG. 6 is a schematic diagram of the position of an ultrasonic transducer according to the present invention;
FIG. 7 is another schematic illustration of the location of an ultrasonic transducer of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The embodiment of the invention provides a solution, which is characterized in that the self-cleaning effect of an air conditioner is enhanced by acquiring the corresponding filth blockage degree of an indoor heat exchanger and using an ultrasonic transducer when the filth blockage degree is higher, so that stubborn dirt is removed, and a better cleaning effect is realized.
As shown in fig. 1, fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present invention.
The terminal of the embodiment of the invention is an air conditioner.
As shown in fig. 1, the terminal may include: a processor 1001, the processor 1001 may be a CPU, a communication bus 1002, a user interface 1003, a memory 1004. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The memory 1004 may be a high-speed RAM memory or a non-volatile memory, such as a disk memory. The memory 1004 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the terminal structure shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a user interface module and a self-cleaning program of the air conditioner may be included in the memory 1004, which is a kind of computer storage medium.
In the terminal shown in fig. 1, the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to call a self-cleaning program of the air conditioner stored in the memory 1004 and perform the steps of the self-cleaning method of the air conditioner according to the various embodiments.
Referring to fig. 2, in an embodiment, a self-cleaning method of an air conditioner may include the steps of:
step S10, acquiring the filth blockage grade of the indoor heat exchanger of the air conditioner;
in this embodiment, the air conditioner may be a split air conditioner, or may be a split multi-split air conditioner. When the air conditioner is a multi-split air conditioner, each indoor heat exchanger of the air conditioner can correspond to one filth blockage grade. The filth blockage grade represents the corresponding filth blockage degree of the corresponding indoor heat exchanger, and the filth blockage grade is positively correlated with the filth blockage degree, namely the greater the filth blockage grade is, the higher the filth blockage degree corresponding to the corresponding indoor heat exchanger is. The higher the degree of filth blockage, the higher the possibility of stubborn dirt of the corresponding indoor heat exchanger, and the worse the cleaning effect of the general self-cleaning of the air conditioner may be.
And optionally, determining the corresponding filth blockage grade of the indoor heat exchanger according to the operation parameters of the air conditioner, wherein the operation parameters can comprise the current operation time of the indoor heat exchanger, the light intensity corresponding to the indoor heat exchanger, the current fan static pressure corresponding to the indoor fan of the indoor heat exchanger and the like, wherein, the operation time of the indoor heat exchanger is the operation time of the indoor heat exchanger in the time period between the finishing time point of the last self-cleaning of the indoor heat exchanger and the current time point, the light intensity corresponding to the indoor heat exchanger can be detected by a photosensitive device arranged on the indoor heat exchanger or at a certain preset position at one side of the indoor heat exchanger, as can be understood, the more dirt adheres to the indoor heat exchanger, the less the amount of external ambient light passes through the indoor heat exchanger, and further influences the light intensity detected by the photosensitive device, so that the dirty blockage grade corresponding to the indoor heat exchanger can be determined through the light intensity.
Optionally, when the filth blockage grade corresponding to the indoor heat exchanger is determined according to the current operation time of the indoor heat exchanger, a preset operation time interval in which the current operation time is located may be obtained, and the filth blockage grade corresponding to the preset operation time interval in which the current operation time is located is used as the filth blockage grade corresponding to the indoor heat exchanger.
Optionally, when the filth blockage level corresponding to the indoor heat exchanger is determined according to the light intensity corresponding to the indoor heat exchanger, a preset light intensity section where the light intensity is located may be obtained, and the filth blockage level corresponding to the preset light intensity section where the light intensity is located may be used as the filth blockage level corresponding to the indoor heat exchanger. Or, a difference value between the light intensity and the initial light intensity detected by the photosensitive device when the indoor heat exchanger operates for the first time can be obtained, and the filth blockage grade corresponding to the indoor heat exchanger is determined according to the difference value.
Optionally, the air conditioner periodically detects a filth blockage grade corresponding to each indoor heat exchanger, so that when the filth blockage grade is greater than a preset threshold value, the air conditioner is controlled to carry out self-cleaning, and whether the indoor heat exchanger corresponding to the air conditioner is self-cleaned according to a first cleaning mode is determined according to whether the filth blockage grade is greater than the preset filth blockage grade, namely whether the ultrasonic transducer of the corresponding indoor heat exchanger is started in a self-cleaning process is determined, and the preset threshold value is smaller than the preset filth blockage grade. Optionally, when the filth blockage level is greater than the preset threshold, the air conditioner may further output a self-cleaning prompt message to the user side, and control the air conditioner to perform self-cleaning when receiving a confirmation instruction of the user based on the self-cleaning prompt message, and if the confirmation instruction of the user is not received or a negative confirmation instruction of the user is received, the air conditioner is not controlled to perform self-cleaning, so as to preferentially meet the user's requirement and avoid affecting the heat exchange requirement of the user.
Optionally, the step of acquiring the filth blockage level corresponding to the indoor heat exchanger of the air conditioner by the air conditioner may be executed after receiving the self-cleaning instruction of the user, and the step of acquiring the filth blockage level corresponding to the indoor heat exchanger of the air conditioner is not executed when the self-cleaning instruction of the user is not received, so as to avoid affecting the heat exchange requirement of the user.
And step S20, when the filth blockage grade is larger than the preset filth blockage grade, controlling the air conditioner to carry out self-cleaning according to a first cleaning mode, wherein in the self-cleaning process in the first cleaning mode, the ultrasonic transducer is started, and the greater the filth blockage grade is, the higher the filth blockage degree of the indoor heat exchanger is.
In this embodiment, when the filth blockage level corresponding to the indoor heat exchanger is greater than the preset filth blockage level set by the indoor heat exchanger, it indicates that the filth blockage degree of the indoor heat exchanger is higher and stubborn filth exists, so the air conditioner can be controlled to self-clean the indoor heat exchanger according to the first cleaning mode, and the ultrasonic transducer is turned on in the self-cleaning process of the indoor heat exchanger in the first cleaning mode, so that the coil and the fins of the indoor heat exchanger generate vibration with low amplitude, high frequency and high acceleration through the mechanical vibration effect of the ultrasonic transducer, thereby effectively separating the filth on the coil fins, and improving the cleaning effect for the stubborn filth. It can be understood that the specific installation position of the ultrasonic transducer can be set according to the actual structure of the heat exchanger, and the coil and the fins of the indoor heat exchanger can generate vibration with low amplitude, high frequency and large acceleration through the mechanical vibration effect of the ultrasonic transducer.
Optionally, the dirty blocking level has a value range of [1, 10], and the dirty blocking level is an integer, for example, the preset dirty blocking level may be 4, and if the dirty blocking level is greater than 4 when the value is 5 to 10, the ultrasonic transducer in the indoor heat exchanger may be turned on in the self-cleaning process of the indoor heat exchanger in the first cleaning mode.
Alternatively, the turn-on time point and the turn-off time point of the ultrasonic transducer during the self-cleaning of the indoor heat exchanger in the first cleaning mode may be set in advance.
Optionally, as shown in fig. 6 and 7, the indoor heat exchanger includes side plates, fins, a coil pipe, and an ultrasonic transducer, the fins are fixedly disposed between at least two side plates, the fins are connected to the coil pipe through an expansion pipe, and the ultrasonic transducer is disposed on the side plates, wherein the ultrasonic transducer is fixedly disposed at an intermediate position in a length direction of the side plates in a welding manner, and when the ultrasonic transducer operates, ultrasonic waves are transmitted to the coil pipe and the fins through the side plates. The mechanical vibration effect of the ultrasonic wave can enable the coil and the fins to generate low-amplitude, high-frequency and high-acceleration vibration, so that dirt on the fins of the coil can be effectively separated.
Optionally, for the multi-split air conditioner, since each indoor heat exchanger corresponds to a dirty level, when the dirty level of any indoor heat exchanger is greater than a preset dirty level corresponding to the indoor heat exchanger, the air conditioner may be controlled to perform self-cleaning on the indoor heat exchanger according to the first cleaning mode. It should be noted that, when the air conditioner is controlled to perform self-cleaning, all the indoor heat exchangers can only be simultaneously turned on in the heating mode or the cooling mode, and cannot meet the heat exchange requirement specified by a user in the working space of a certain indoor heat exchanger, so that the self-cleaning of the air conditioner can be performed for all the indoor heat exchangers of the air conditioner, wherein the working space can be an indoor room where the indoor heat exchanger is located.
Alternatively, the ultrasonic transducers that need to be turned on during the self-cleaning in the first cleaning mode may be those of all indoor heat exchangers. Of course, the ultrasonic transducer that needs to be turned on in the cleaning process in the first cleaning mode may also be an ultrasonic transducer in an indoor heat exchanger with a filth blockage grade greater than a preset filth blockage grade set for the indoor heat exchanger, so as to avoid unnecessary energy consumption brought by the ultrasonic transducer while removing stubborn dirt.
In the technical scheme disclosed in the embodiment, the dirty blockage degree corresponding to the indoor heat exchanger is obtained, and the self-cleaning effect of the air conditioner is enhanced through the ultrasonic transducer when the dirty blockage grade is larger, so that stubborn dirt is removed, and a better cleaning effect is realized.
In another embodiment, as shown in fig. 3, on the basis of the embodiment shown in fig. 2, the step of controlling the air conditioner to perform self-cleaning according to the first cleaning mode in step S20 includes:
step S21, condensed water generation stage: controlling the air conditioner to operate a refrigeration mode according to a first operation parameter so as to enable the indoor heat exchanger to generate condensed water;
in this embodiment, when the air conditioner is controlled to perform self-cleaning according to the first cleaning mode, the cleaning purpose can be achieved by defrosting and defrosting. The method comprises the steps of firstly controlling the air conditioner to enter a condensate water stage, specifically, controlling the air conditioner to start a refrigeration mode by adopting a first operation parameter so that condensate water begins to be generated on the surface of an indoor heat exchanger, and realizing primary cleaning of the indoor heat exchanger through the condensate water. The first operating parameter may be a fan speed of the indoor heat exchanger, wherein the fan of the indoor heat exchanger may be controlled to operate at a medium fan speed, and when the fan speed is too high, condensate water is generally not formed on the indoor heat exchanger. It should be noted that, for the multi-split air conditioner, all indoor heat exchangers of the multi-split air conditioner enter the condensation water stage at the same time.
Optionally, in the condensed water generation stage, the duration of the air conditioner in the condensed water generation stage is obtained, and when the duration is longer than the preset condensed water duration, the air conditioner is stopped to be controlled to perform cooling operation according to the first operation parameter, and is controlled to perform cooling on the action space of each indoor heat exchanger according to the second operation parameter, so that the air conditioner is switched from the condensed water generation stage to the frosting stage.
Optionally, in the condensate water produces the stage, the ultrasonic transducer of indoor heat exchanger can be operated to directly influence stubborn dirt through ultrasonic transducer mechanical vibration, weaken the adhesive force of stubborn dirt on indoor heat exchanger, make stubborn dirt drop from indoor heat exchanger more easily, improve the preliminary cleaning effect of condensate water to indoor heat exchanger.
Alternatively, in the condensed water generation stage, the ultrasonic transducer may be synchronously turned on when the air conditioner enters the condensed water generation stage, and synchronously turned off when the air conditioner ends the condensed water generation stage. Optionally, since the condensed water on the indoor heat exchanger is less in the early stage of the condensed water generation stage, the ultrasonic transducer may be operated after the condensed water generation stage is operated for a period of time, that is, after the air conditioner operates the cooling mode according to the first operation parameter for a duration longer than a preset duration, so as to avoid unnecessary energy consumption of the ultrasonic transducer, where the preset duration may be half of the total duration of the condensed water generation stage, and the ultrasonic transducer is synchronously turned off at the end of the condensed water generation stage.
Step S22, frosting stage: controlling the air conditioner to perform refrigerating operation according to a second operation parameter so as to frost the indoor heat exchanger;
in this embodiment, in the frosting stage, the air conditioner is controlled to refrigerate the action space of each indoor heat exchanger according to the second operation parameter, so that the condensed water generated on the indoor heat exchanger in the condensed water generation stage is condensed into frost under the refrigeration action of the indoor heat exchanger. The second operation parameter may include a deflection angle of an air guide device of the indoor heat exchanger, a rotation speed value of the indoor fan, and the like, wherein the deflection angle of the air guide plate may be adjusted to a minimum angle to close the air guide plate, and the rotation speed of the indoor fan may be controlled to be zero to close the indoor fan, so that the indoor heat exchanger is more easily frosted.
Optionally, in the frosting stage, the duration of the air conditioner in the frosting stage is obtained, when the duration is longer than the preset frosting duration, the air conditioner is stopped to be controlled to refrigerate the action space of each indoor heat exchanger according to the second operation parameter, the air conditioner is controlled to start the heating mode according to the third operation parameter, so that the air conditioner finishes the frosting stage, and the decontamination stage is carried out.
Optionally, in the frosting stage, the temperature of the coil corresponding to the coil in the indoor heat exchanger is detected, when the temperature of the coil is lower than a first preset temperature corresponding to the indoor heat exchanger, the frosting is considered to reach the target thickness, and the frosting is completed, so that the air conditioner can be controlled to finish the frosting stage and enter the decontamination stage, and the control of the frosting stage is more accurate.
Step S23, decontamination stage: controlling the air conditioner to operate a heating mode according to a third operation parameter;
wherein the ultrasonic transducer is operated in the decontamination phase.
In this embodiment, in the scrubbing stage, control air conditioner comes to heat each indoor heat exchanger's effect space according to the third operating parameter to melt the frosting on the indoor heat exchanger, when frosting melts, partly dirt on the indoor heat exchanger has been taken away in the nature of frost, but is relatively poor to the cleaning performance of stubborn dirt, consequently, can open the ultrasonic transducer in the indoor heat exchanger in the scrubbing stage, the cleaning performance to stubborn dirt is strengthened through ultrasonic transducer's mechanical vibration effect. When ultrasonic transducer moves, the shedding of frosting can be increased through mechanical vibration of ultrasonic transducer, and obstinate dirt is taken away through the shedding of frosting, and simultaneously, ultrasonic transducer still can directly influence obstinate dirt through mechanical vibration, weakens the adhesive force of obstinate dirt on indoor heat exchanger for obstinate dirt drops from indoor heat exchanger more easily. In the multi-split air conditioner, when one indoor heat exchanger of the multi-split air conditioner enters the decontamination stage, the other indoor heat exchangers also enter the decontamination stage.
Optionally, the third operating parameter may include a deflection angle of an air guiding device of the indoor heat exchanger, a rotation speed value of the indoor fan, and the like, where the deflection angle of the air guiding plate may be adjusted to a preset deflection angle to open the air guiding plate.
Optionally, in the decontamination phase, a duration of the air conditioner in the decontamination phase is obtained, and when the duration is longer than a preset decontamination duration, the air conditioner is stopped from being controlled to heat the action space of each indoor heat exchanger according to the third operation parameter, so as to end the decontamination phase.
Optionally, in the scrubbing stage, detect the coil pipe temperature that the coil pipe in the indoor heat exchanger corresponds, when the coil pipe temperature is greater than the second that indoor heat exchanger corresponds and predetermines the temperature, think that frost on the indoor heat exchanger has all melted, consequently steerable air conditioner stops to heat each indoor heat exchanger's effect space according to the third operating parameter to end the scrubbing stage, make the control in the scrubbing stage more accurate, wherein, the second that indoor heat exchanger corresponds is predetermine the temperature and is greater than the first temperature of predetermineeing that indoor heat exchanger corresponds.
Optionally, when the decontamination stage is finished, the compressor of the air conditioner is turned off, the air deflector of the indoor heat exchanger is turned on, and the operation air supply mode of the indoor heat exchanger is controlled to continue for a preset air supply time so as to evaporate residual moisture on the indoor heat exchanger. Optionally, after the air supply mode is ended, the air conditioner is controlled according to the operation parameters of the air conditioner before the air conditioner performs self-cleaning on the indoor heat exchanger according to the first cleaning mode, so that the air conditioner is restored to the state before self-cleaning.
In the technical scheme disclosed in this embodiment, the indoor heat exchanger is controlled to condense water, frost and defrost, and the stubborn dirt is removed through the ultrasonic transducer when defrosting and decontaminating, so that the self-cleaning effect of the air conditioner is improved.
In yet another embodiment, as shown in fig. 4, on the basis of the embodiment shown in any one of fig. 2 to fig. 3, after the step S10, the method further includes:
and step S30, when the filth blockage grade is less than or equal to the preset filth blockage grade, controlling the air conditioner to carry out self-cleaning according to a second cleaning mode, wherein the ultrasonic transducer is controlled to be in a closed state in the self-cleaning process in the second cleaning mode.
In this embodiment, if it is detected that the filth blockage level of the indoor heat exchanger is less than or equal to the preset filth blockage level corresponding to the indoor heat exchanger, it indicates that the indoor heat exchanger does not have stubborn dirt, so the air conditioner can be controlled to self-clean the indoor heat exchanger according to the second cleaning mode, and the ultrasonic transducer of the indoor heat exchanger is kept in a closed state all the time in the self-cleaning process of the indoor heat exchanger in the second cleaning mode, thereby avoiding unnecessary energy consumption caused by starting the ultrasonic transducer. It can be understood that the self-cleaning process in the second cleaning mode also includes a condensed water generation stage, a frosting stage and a decontamination stage, the self-cleaning control process corresponding to the first cleaning mode when the filth blockage grade of the indoor heat exchanger is greater than the preset filth blockage grade corresponding to the indoor heat exchanger is different from the self-cleaning control process corresponding to the second cleaning mode when the filth blockage grade of the indoor heat exchanger is less than or equal to the preset filth blockage grade corresponding to the indoor heat exchanger in that whether the ultrasonic transducer in the indoor heat exchanger is turned on or not, when the filth blockage grade of the indoor heat exchanger is greater than the preset filth blockage grade corresponding to the indoor heat exchanger, the cleaning effect is enhanced by the ultrasonic transducer in the indoor heat exchanger, and when the filth blockage grade of the indoor heat exchanger is less than or equal to the preset filth blockage grade corresponding to the indoor heat exchanger, the cleaning effect is not enhanced by the ultrasonic transducer in the indoor heat exchanger, and the ultrasonic transducer is always kept in the closed state. For the multi-split air conditioner, the multi-split air conditioner comprises a plurality of indoor heat exchangers, and whether the ultrasonic transducers in the corresponding indoor heat exchangers are started to enhance the cleaning effect of the corresponding indoor heat exchangers is determined according to the filth blockage degree corresponding to each indoor heat exchanger.
In the technical scheme disclosed in the embodiment, different self-cleaning modes are adopted according to the corresponding filth blockage degree of the indoor heat exchanger, so that the self-cleaning effect is ensured, and meanwhile, unnecessary energy consumption is saved.
In another embodiment, as shown in fig. 5, on the basis of the embodiment shown in any one of fig. 2 to 4, step S10 includes:
step S11, obtaining the current fan static pressure of the indoor heat exchanger;
in this embodiment, the static pressure of the fan is the static pressure corresponding to the fan of the indoor heat exchanger, and the static pressure is the pressure generated by the irregular movement of air molecules and the impact on the wall surface of an object, and is the potential energy of a unit volume of gas, and the unit is generally pascal (pa).
Optionally, for the indoor fan, when the current fan static pressure corresponding to the indoor fan of the indoor heat exchanger needs to be obtained, the ambient temperature in the action space where the indoor heat exchanger is located and the current operating current value of the driving motor of the indoor fan may be obtained, the current fan static pressure is calculated according to the ambient temperature and the current operating current value through a preset calculation formula, or a table look-up is performed according to the ambient temperature and the current operating current value, so as to obtain the current fan static pressure. Generally speaking, when the fan rotation speed is the same, the current fan static pressure is negatively correlated with the ambient temperature, and the current fan static pressure is negatively correlated with the current operating current value, wherein when the ambient temperature is higher, the current operating current value is also larger, and when the current operating current value is larger, the current fan static pressure is smaller.
And step S12, determining the dirty blockage grade according to the difference value between the current static pressure of the fan and the preset static pressure.
In this embodiment, when the filth blockage degree corresponding to the indoor heat exchanger changes, the current running current value of the driving motor of the fan also changes to maintain the stability of the rotating speed of the fan, so that the difference value between the current fan static pressure corresponding to the indoor fan of the indoor heat exchanger and the corresponding preset static pressure can be obtained, and when the difference value is larger, the change of the filth blockage degree is also larger, so that the filth blockage grade can be determined according to the difference value, wherein the calculation formula of the filth blockage grade can be: and (3) integrating a dirty blockage grade into INT (current fan static pressure-preset static pressure) +1, wherein INT is a function of rounding a numerical value downwards into a nearest integer, the value of the dirty blockage grade is minimum to 1, and is maximum to 10, and the air conditioner stores preset static pressures corresponding to the indoor heat exchangers in advance.
Alternatively, the preset static pressure may be a fan static pressure of the indoor heat exchanger when the air conditioner is operated for the first time. Specifically, when the air conditioner is started and operated for the first time, the initial fan static pressure corresponding to the indoor fan of each indoor heat exchanger is obtained, the initial fan static pressure is used as the preset static pressure of the indoor heat exchanger, and the preset static pressure is stored. The fan speed difference value between the fan speed corresponding to the indoor fan when the static pressure of the current fan is obtained and the fan speed corresponding to the indoor fan when the static pressure of the initial fan is obtained is smaller than a preset difference value, for example, the preset difference value can be zero, namely the fan gear corresponding to the indoor fan when the static pressure of the current fan is obtained is the same as the fan gear corresponding to the indoor fan when the static pressure of the initial fan is obtained, so that the consistency of the variable fan speed is maintained.
Alternatively, the preset static pressure may be a current static pressure of a side of the indoor heat exchanger facing away from the fan. Specifically, the air inlet of return air inlet passes through indoor heat exchanger earlier, flow through indoor fan again, blow off from the air outlet, consequently, indoor heat exchanger includes the air-out face towards indoor fan one side, and deviate from the air inlet face of indoor fan one side, when the dirty stifled degree that indoor heat exchanger corresponds changes, the amount of wind through indoor heat exchanger also can change, thereby influence the current fan static pressure towards the air-out face of indoor fan one side, consequently, can regard the static pressure that indoor heat exchanger deviates from the air inlet face of indoor fan one side as predetermined static pressure, and confirm dirty stifled grade according to the difference that current fan static pressure and indoor heat exchanger deviate from the static pressure of the air inlet face of indoor fan one side.
In the technical scheme disclosed in this embodiment, the current static pressure of the fan corresponding to the indoor fan of the indoor heat exchanger is obtained, and the filth blockage level corresponding to the indoor heat exchanger is determined according to the difference between the current static pressure of the fan and the preset static pressure corresponding to the indoor fan of the indoor heat exchanger, so that the filth blockage degree of the indoor heat exchanger is detected.
In addition, an embodiment of the present invention further provides an air conditioner, including: the self-cleaning program of the air conditioner is executed by the processor to realize the steps of the self-cleaning method of the air conditioner as described in the above embodiments.
Optionally, the air conditioner is a multi-split air conditioner, and each indoor unit of the multi-split air conditioner is provided with an ultrasonic transducer.
In addition, an embodiment of the present invention further provides a computer-readable storage medium, where a self-cleaning program of an air conditioner is stored on the computer-readable storage medium, and the self-cleaning program of the air conditioner, when executed by a processor, implements the steps of the self-cleaning method of the air conditioner according to the above embodiments.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A self-cleaning method of an air conditioner, comprising the steps of:
acquiring the filth blockage grade of the indoor heat exchanger of the air conditioner, wherein the filth blockage grade is determined according to the operation parameters of the air conditioner, and the operation parameters comprise the current operation time of the indoor heat exchanger, the light intensity corresponding to the indoor heat exchanger and the current fan static pressure corresponding to an indoor fan of the indoor heat exchanger, wherein the current operation time of the indoor heat exchanger is the operation time of the indoor heat exchanger in a time period between the finishing time point of last self-cleaning of the indoor heat exchanger and the current time point;
when the filth blockage grade is larger than a preset filth blockage grade, controlling the air conditioner to carry out self-cleaning according to a first cleaning mode, wherein the step of carrying out self-cleaning according to the first cleaning mode comprises the following steps;
a condensed water generation stage: controlling the air conditioner to operate a refrigeration mode according to a first operation parameter so as to enable the indoor heat exchanger to generate condensed water, and in a condensed water generation stage, operating an ultrasonic transducer until the condensed water generation stage is finished when the continuous duration of the refrigeration mode operated by the air conditioner according to the first operation parameter is longer than a preset duration;
and (3) frosting stage: controlling the air conditioner to perform refrigerating operation according to a second operation parameter so as to frost the indoor heat exchanger;
a decontamination stage: controlling the air conditioner to operate a heating mode according to a third operation parameter, and operating the ultrasonic transducer in a decontamination stage;
the indoor heat exchanger comprises side plates, fins, a coil and an ultrasonic transducer, the fins are fixedly arranged between at least two side plates, the fins are connected with the coil through expansion pipes, the ultrasonic transducer is arranged on the side plates, the ultrasonic transducer is fixedly arranged on the side plates, and when the ultrasonic transducer runs, ultrasonic waves are transmitted to the coil and the fins through the side plates.
2. A self-cleaning method of an air conditioner according to claim 1, wherein the air conditioner is controlled to switch from the frosting stage to the desmutting stage when a coil temperature of the indoor heat exchanger is less than a first preset temperature.
3. A self-cleaning method of an air conditioner as claimed in claim 2, wherein the air conditioner is controlled to end the decontamination phase when a coil temperature of the indoor heat exchanger is greater than a second preset temperature, wherein the second preset temperature is greater than the first preset temperature.
4. A self-cleaning method of an air conditioner according to claim 1, wherein said step of obtaining a filth blockage grade of an indoor heat exchanger of the air conditioner further comprises:
and when the filth blockage grade is less than or equal to the preset filth blockage grade, controlling the air conditioner to carry out self-cleaning according to a second cleaning mode, wherein the ultrasonic transducer is controlled to be in a closed state in the self-cleaning process in the second cleaning mode.
5. A self-cleaning method of an air conditioner according to claim 1, wherein the step of acquiring a filth blockage grade of an indoor heat exchanger of the air conditioner comprises:
acquiring the current fan static pressure of the indoor heat exchanger;
and determining the filth blockage grade according to the difference value of the current fan static pressure and a preset static pressure.
6. A self-cleaning method of an air conditioner according to claim 5, wherein said step of obtaining a current fan static pressure of said indoor heat exchanger comprises:
acquiring the ambient temperature in the action space of the heat exchanger;
acquiring the current running current value of an indoor fan of the heat exchanger;
and determining the current fan static pressure according to the environment temperature and the current running current value.
7. A self-cleaning method of an air conditioner according to claim 5, wherein the self-cleaning method of an air conditioner further comprises:
when the air conditioner operates for the first time, acquiring the initial fan static pressure of the indoor heat exchanger, wherein the difference value between the fan rotating speed when the current fan static pressure is acquired and the fan rotating speed when the initial fan static pressure is acquired is smaller than a preset difference value;
and taking the initial fan static pressure as the preset static pressure, and storing the preset static pressure.
8. An air conditioner, characterized in that the air conditioner comprises: memory, processor and self-cleaning program of an air conditioner stored on the memory and executable on the processor, the self-cleaning program of the air conditioner implementing the steps of the self-cleaning method of an air conditioner as claimed in any one of claims 1 to 7 when executed by the processor.
9. A computer storage medium, characterized in that the computer storage medium has stored thereon a self-cleaning program of an air conditioner, which when executed by a processor implements the steps of the self-cleaning method of the air conditioner according to any one of claims 1 to 7.
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| CN110736195B (en) * | 2019-09-30 | 2021-11-23 | 青岛海尔空调器有限总公司 | Air conditioner self-cleaning control method and device and air conditioner |
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