CN110173828A - The self cleaning method and computer readable storage medium of air conditioner, indoor heat exchanger - Google Patents
The self cleaning method and computer readable storage medium of air conditioner, indoor heat exchanger Download PDFInfo
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- CN110173828A CN110173828A CN201910461883.9A CN201910461883A CN110173828A CN 110173828 A CN110173828 A CN 110173828A CN 201910461883 A CN201910461883 A CN 201910461883A CN 110173828 A CN110173828 A CN 110173828A
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- heat exchanger
- indoor heat
- air conditioner
- indoor
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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
-
- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
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- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of self cleaning method of indoor heat exchanger, the self cleaning method of the indoor heat exchanger is the following steps are included: control air conditioner runs refrigeration mode so that indoor heat exchanger surface generates condensed water and frosting；When the duration of air conditioner operation refrigeration mode reaches target duration, the air conditioner operation heating mode is controlled to carry out defrost to the indoor heat exchanger, wherein, the target duration is determined according to indoor humidity, the target duration and the indoor humidity are negative correlativing relation, alternatively, the target duration increases in staged when the indoor humidity reduces.Invention additionally discloses a kind of air conditioner and computer readable storage mediums.The refrigeration duration of air conditioner is reasonable when indoor heat exchanger of the present invention is cleaned.
Description
Technical field
The present invention relates to air conditioner technical field more particularly to a kind of air conditioner, indoor heat exchanger self cleaning method and
Computer readable storage medium.
Background technique
Air conditioner after long-term use, has a large amount of dust and dirt and is gathered in filter screen.When air conditioner be switched on run after, mistake
Dust and dirt on strainer can enter the room evaporator with air, so that dust and dirt is attached on indoor heat exchanger, lead to indoor heat exchanger
Superficial dust, and then the heat exchange property of indoor heat exchanger is reduced, so that the energy consumption of air conditioner becomes larger, and refrigeration effect is lower.Together
When, the dust and dirt of indoor heat exchanger can also breed a large amount of bacterium, cause the health problem of user.
In the prior art, air conditioner makes the frosting of indoor heat exchanger surface by running refrigeration mode to carry out clearly to dust and dirt
It washes, and the operation duration of refrigeration mode is generally fixed duration, can make the condensed water mistake generated on indoor heat exchanger surface
Less or excessively.When condensed water is very few, it will cause the removing of indoor heat exchanger dust and dirt and be not thorough；And condensing dilutional hyponatremia can then make
Frosting degree on indoor heat exchanger surface is more, causes the defrost quantitative change of indoor heat exchanger more, so that air conditioner wastes energy consumption.?
I.e. the prior art has that the refrigeration duration of air conditioner when indoor heat exchanger is cleaned is unreasonable.
Summary of the invention
The main purpose of the present invention is to provide a kind of air conditioners, the self cleaning method of indoor heat exchanger and computer-readable
Storage medium, it is intended to solve the problems, such as that the refrigeration mode duration of air conditioner when indoor heat exchanger is cleaned is unreasonable.
To achieve the above object, the self cleaning method of a kind of indoor heat exchanger provided by the invention, the indoor heat exchanger
Self cleaning method the following steps are included:
Air conditioner operation refrigeration mode is controlled so that indoor heat exchanger surface generates condensed water and frosting；
When the duration of air conditioner operation refrigeration mode reaches target duration, the air conditioner operation heating mould is controlled
Formula with to the indoor heat exchanger carry out defrost, wherein the target duration according to indoor humidity determine, the target duration with
The indoor humidity is negative correlativing relation, alternatively, the relationship of the target duration and the indoor humidity are as follows:F (x) is target duration, and x is indoor humidity, nm-1Greater than n1, and amIt is less than
a1.In one embodiment, the indoor humidity is according to the difference between room temperature and the coil temperature of the indoor heat exchanger
Humidity that determining, the described indoor humidity is acquired according to humidity sensor is determining or the indoor humidity is according to the air conditioner
Outside humidity in the corresponding Weather information in location determines.
In one embodiment, during the air conditioner runs refrigeration mode, to space where the air conditioner into
Row humidification.
In one embodiment, the indoor heat exchanger generate condensed water when, the coil temperature of the indoor heat exchanger
Greater than 2 DEG C and less than 20 DEG C.
In one embodiment, the air conditioner is made by the revolving speed of control indoor fan and/or the running frequency of compressor
The coil temperature of the indoor heat exchanger is greater than 2 DEG C and less than 20 DEG C.
In one embodiment, the air conditioner controls the revolving speed of indoor fan according to indoor humidity, the indoor fan
The relationship of revolving speed and the indoor humidity are as follows:For revolving speed, y is interior
Humidity, dm-1Greater than d1, and bmGreater than b1.In one embodiment, the self cleaning method of the indoor heat exchanger, further includes:
When the duration of air conditioner operation heating mode reaches preset duration, outdoor temperature is obtained；
When the outdoor temperature is greater than or equal to preset temperature, compressor shutdown is controlled；
When the outdoor temperature is less than preset temperature, control compressor is run with preset operating frequency, wherein described pre-
If running frequency is greater than zero and is less than running frequency of the compressor in the indoor heat exchanger defrost.
In one embodiment, when the indoor humidity is greater than 80%, the indoor heat exchanger generates the duration of condensed water
Less than or equal to 5min；When the indoor humidity is less than or equal to 80% and is greater than 60%, the indoor heat exchanger generates cold
The duration of condensate is greater than 5min and is less than or equal to 8min；When the indoor humidity is less than or equal to 60% and is greater than 40%,
The duration that the indoor heat exchanger generates condensed water is greater than 8min and is less than or equal to 10min.
To achieve the above object, the present invention also provides a kind of air conditioner, the air conditioner include memory, processor and
The self-cleaning program of indoor heat exchanger that is stored in the memory and can run on the processor, the indoor heat exchanger
Self-cleaning program the step of realizing the self cleaning method of indoor heat exchanger as described above when being executed by processor.
To achieve the above object, the present invention also provides a kind of computer readable storage medium, the computer-readable storages
Medium includes the self-cleaning program of indoor heat exchanger, is realized when the cleaning procedure of the indoor heat exchanger is executed by processor as above
The step of self cleaning method of the indoor heat exchanger.
The self cleaning method and computer readable storage medium of air conditioner provided by the invention, indoor heat exchanger, indoors
When heat exchanger is cleaned, control air conditioner runs refrigeration mode, so that indoor heat exchanger frosting, and air conditioner operation system
When the duration of cold mode reaches target duration, control air conditioner operation heating mode is to carry out defrost to indoor heat exchanger；Due to
Air conditioner determines the operation duration of refrigeration mode according to indoor humidity, so that indoor heat exchanger surface generates suitable condensed water,
Under the premise of guaranteeing that the dust and dirt of indoor heat exchanger can be removed thoroughly, air conditioner is avoided to waste energy consumption, air conditioner operation
The duration of refrigeration mode is reasonable.
Detailed description of the invention
Fig. 1 be the present embodiments relate to air conditioner hardware structural diagram；
Fig. 2 is the flow diagram of the self cleaning method first embodiment of indoor heat exchanger of the present invention；
Fig. 3 is the flow diagram of the self cleaning method second embodiment of indoor heat exchanger of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The primary solutions of the embodiment of the present invention are: control air conditioner operation refrigeration mode is so that indoor heat exchanger surface
Generate condensed water and frosting；When the duration of air conditioner operation refrigeration mode reaches target duration, the air conditioner is controlled
Heating mode is run to carry out defrost to the indoor heat exchanger, wherein the target duration is determined according to indoor humidity.
Since air conditioner determines according to indoor humidity the operation duration of refrigeration mode so that indoor heat exchanger surface generate it is suitable
The condensed water of amount avoids air conditioner from wasting energy consumption under the premise of guaranteeing that the dust and dirt of indoor heat exchanger can be removed thoroughly,
The duration that air conditioner runs refrigeration mode is reasonable.
As a kind of implementation, air conditioner can be as shown in Figure 1.
For the embodiment of the present invention what is involved is air conditioner, air conditioner includes: processor 1001, such as CPU, memory
1002, communication bus 1003.Wherein, communication bus 1003 is for realizing the connection communication between these components.
Memory 1002 can be high speed RAM memory, be also possible to stable memory (non-
), such as magnetic disk storage volatilememory.As shown in Figure 1, as in a kind of memory 1002 of computer storage medium
It may include the self-cleaning program of indoor heat exchanger；And processor 1001 can be used for calling the interior stored in memory 1002
The self-cleaning program of heat exchanger, and execute following operation:
Air conditioner operation refrigeration mode is controlled so that indoor heat exchanger surface generates condensed water and frosting；
When the duration of air conditioner operation refrigeration mode reaches target duration, the air conditioner operation heating mould is controlled
Formula with to the indoor heat exchanger carry out defrost, wherein the target duration according to indoor humidity determine, the target duration with
The indoor humidity is negative correlativing relation, alternatively, the relationship of the target duration and the indoor humidity are as follows:F (x) is target duration, and x is indoor humidity, nm-1Greater than n1, and amIt is less than
a1。
In one embodiment, processor 1001 can be used for calling the certainly clear of the indoor heat exchanger stored in memory 1002
Clean program, and execute following operation:
The indoor humidity is determining, described according to the difference between room temperature and the coil temperature of the indoor heat exchanger
Humidity that indoor humidity is acquired according to humidity sensor is determining or the indoor humidity is according to the air conditioner location
Outside humidity in corresponding Weather information determines.
In one embodiment, processor 1001 can be used for calling the certainly clear of the indoor heat exchanger stored in memory 1002
Clean program, and execute following operation:
During the air conditioner runs refrigeration mode, space where the air conditioner is humidified.
In one embodiment, processor 1001 can be used for calling the certainly clear of the indoor heat exchanger stored in memory 1002
Clean program, and execute following operation:
When the indoor heat exchanger generates condensed water, the coil temperature of the indoor heat exchanger is greater than 2 DEG C and is less than
20℃。
In one embodiment, processor 1001 can be used for calling the certainly clear of the indoor heat exchanger stored in memory 1002
Clean program, and execute following operation:
The air conditioner makes the indoor heat exchange by the revolving speed of control indoor fan and/or the running frequency of compressor
The coil temperature of device is greater than 2 DEG C and less than 20 DEG C.
In one embodiment, processor 1001 can be used for calling the certainly clear of the indoor heat exchanger stored in memory 1002
Clean program, and execute following operation:
The air conditioner controls the revolving speed of indoor fan, the revolving speed of the indoor fan and the interior according to indoor humidity
The relationship of humidity are as follows:F (y) is revolving speed, and y is indoor humidity, dm-1Greater than d1,
And bmGreater than b1.In one embodiment, processor 1001 can be used for calling oneself of the indoor heat exchanger stored in memory 1002
Cleaning procedure, and execute following operation:
When the duration of air conditioner operation heating mode reaches preset duration, outdoor temperature is obtained；
When the outdoor temperature is greater than or equal to preset temperature, compressor shutdown is controlled；
When the outdoor temperature is less than preset temperature, control compressor is run with preset operating frequency, wherein described pre-
If running frequency is greater than zero and is less than running frequency of the compressor in the indoor heat exchanger defrost.
In one embodiment, processor 1001 can be used for calling the certainly clear of the indoor heat exchanger stored in memory 1002
Clean program, and execute following operation:
When the indoor humidity is greater than 80%, the duration that the indoor heat exchanger generates condensed water is less than or equal to
5min；When the indoor humidity is less than or equal to 80% and is greater than 60%, the indoor heat exchanger generates the duration of condensed water
Greater than 5min and it is less than or equal to 8min；When the indoor humidity is less than or equal to 60% and is greater than 40%, the interior is changed
The duration that hot device generates condensed water is greater than 8min and is less than or equal to 10min.
The present embodiment is according to above scheme, when heat exchanger is cleaned indoors, control air conditioner operation refrigeration mould
Formula, so that indoor heat exchanger frosting, and when the duration arrival target duration of air conditioner operation refrigeration mode, control air conditioner operation
Heating mode is to carry out defrost to indoor heat exchanger；Since air conditioner determines according to indoor humidity the operation duration of refrigeration mode,
So that indoor heat exchanger surface generates suitable condensed water, before guaranteeing that the dust and dirt of indoor heat exchanger can be removed thoroughly
It puts, air conditioner is avoided to waste energy consumption, the duration that air conditioner runs refrigeration mode is reasonable.
Based on above-mentioned hardware architecture, the embodiment of the self cleaning method of indoor heat exchanger of the present invention is proposed.
It is the first embodiment of the self cleaning method of indoor heat exchanger of the present invention, the indoor heat exchanger referring to Fig. 2, Fig. 2
Self cleaning method the following steps are included:
Step S10, control air conditioner operation refrigeration mode is so that indoor heat exchanger surface generates condensed water and frosting；
In the present invention, executing subject is air conditioner.Air conditioner can periodically clean indoor heat exchanger, namely work as
When preceding time point is timing point, determine that indoor heat exchanger meets clean conditions, to clean to indoor heat exchanger.Air-conditioning
Device can be modified timing point according to the current operating conditions of current time and air conditioner.Specifically, air conditioner
When cleaning indoor heat exchanger, need to run refrigeration mode to generate condensed water, when the optional indoor humidity of air conditioner is biggish
Between point carry out the cleaning of indoor heat exchanger, timing point is also modified to indoor humidity biggish time point, indoor humidity
It can be determined according to Weather information.When current point in time reaches timing point, air conditioner determines current operating status, if
Air conditioner is in running order, namely shows that user has heating needs or refrigeration demand, at this point, air conditioner can't be to room
Interior heat exchanger is cleaned, but air conditioner be not in operation carry out indoor heat exchanger cleaning, also will timing when
Between point be modified to time point of air conditioner not running.Certainly, user can carry out dust and dirt cleaning by triggering indoor heat exchanger
Key, so that air conditioner carries out the cleaning of indoor heat exchanger.
It is needing to run refrigeration mode to air conditioner when cleaning indoor heat exchanger.Air conditioner runs refrigeration mode,
So that the surface of indoor heat exchanger carries out frosting.
Step S20 controls the air conditioner fortune when the duration of air conditioner operation refrigeration mode reaches target duration
Row heating mode is to carry out defrost to the indoor heat exchanger, wherein the target duration is determining according to indoor humidity, the mesh
It marks duration and the indoor humidity is negative correlativing relation, alternatively, the target duration is in staged when the indoor humidity reduces
Increase.
Indoor heat exchanger needs to generate enough condensed waters to guarantee that indoor heat exchanger more can thoroughly complete dirt
The cleaning of dirt.In this regard, air conditioner obtains current indoor humidity, condensed water can determine according to indoor humidity and target water
The target duration in stage, and determine that air conditioner runs refrigeration mode target duration according to indoor humidity.Indoor humidity is bigger, target
Duration is smaller namely target duration and indoor humidity are negative correlativing relation.Alternatively, when the indoor humidity reduces, the target
Duration increases in staged.
Specifically, the relationship of target duration and indoor humidity are as follows:f(x)
For target duration, x is indoor humidity, nm-1Greater than n1, and amLess than a1.It should be noted that humidity section be divided into it is multiple, such as
(0, n1]、(n1, n2]、(n2, n3]、…(nm-2, nm-1]、(nm-1, 100%], and becoming larger with humidity section, target duration a become
It is small.
When the duration of air conditioner operation refrigeration mode reaches target duration, control air conditioner runs heating mode, from
And defrost is carried out to indoor heat exchanger.After defrost, air conditioner can continue to run heating mode with to indoor heat exchanger into
Row drying, to clean the dust and dirt of indoor heat exchanger.
In technical solution provided in this embodiment, when heat exchanger is cleaned indoors, control air conditioner operation
Refrigeration mode, so that indoor heat exchanger frosting, and when the duration arrival target duration of air conditioner operation refrigeration mode, control air-conditioning
Device runs heating mode to carry out defrost to indoor heat exchanger；Since air conditioner determines according to indoor humidity the operation of refrigeration mode
Duration can obtain thoroughly so that indoor heat exchanger surface generates suitable condensed water in the dust and dirt for guaranteeing indoor heat exchanger
Under the premise of removing, air conditioner is avoided to waste energy consumption, the duration that air conditioner runs refrigeration mode is reasonable.
In one embodiment, when air conditioner runs refrigeration mode, the state of condensed water is from full liquid on indoor heat exchanger
State enters at least partially solid state, and stage definitions when by condensed water being full liquid are condensed water wash phase, will
It is the condensed water frosting stage that condensed water at least part, which is solid stage definitions,.Namely in air conditioner refrigeration, indoor heat exchange
Device sequentially enters condensed water wash phase and condensed water frosting stage.It is understood that condensed water wash phase refers to
Indoor heat exchanger surface condenses into liquid water, and the condensed water frosting stage is then the condensed water frosting on indoor heat exchanger surface.?
When indoor heat exchanger is in condensed water wash phase, the coil temperature for needing to control indoor heat exchanger is in preset temperature section,
Preset temperature section can be 2 DEG C -20 DEG C, and when coil temperature is in preset temperature section, indoor heat exchanger surface is liquid
Condensed water.Air conditioner can also may be used by controlling the revolving speed of indoor fan so that coil temperature is in preset temperature section certainly
To make coil temperature be in preset temperature section by the running frequency for controlling compressor, it should be noted that in order to enable
Indoor heat exchanger surface generates enough condensed waters, and the running frequency of compressor is high frequency, high frequency be preferably compressor most
Big running frequency.
The lasting duration of condensed water wash phase indoor humidity can also determine simultaneously.In continuing when condensed water wash phase
When duration reaches calculated value, control indoor heat exchanger enters the condensed water frosting stage.In condensed water wash phase, at coil temperature
In preset temperature section, air conditioner adjusts operating parameter, so that coil temperature is lower than the minimum value in preset temperature section, to make
The condensed water frosting on indoor heat exchanger surface is obtained, namely indoor heat exchange is made to enter condensed water frosting rank by condensed water wash phase
Section.
The operating parameter of adjustment can lead to for the running frequency of compressor and the revolving speed namely air conditioner of indoor fan
It crosses and increases the running frequency of compressor, reduces the revolving speed of indoor fan or increase the running frequency of compressor and reduce indoor
The revolving speed of blower, so that indoor heat exchanger enters the condensed water frosting stage by condensed water wash phase.
Air conditioner can control the revolving speed of indoor fan according to indoor humidity, and indoor humidity is higher, and the revolving speed of indoor fan is got over
Greatly, namely indoors when humidity is higher, air conditioner is run by controlling the revolving speed of indoor fan with the larger value, so that entering the room
The air of heat exchanger is more, so that indoor heat exchanger quickly generates condensed water.It is specific:
The revolving speed of indoor fan and the relationship of indoor humidity are as follows:f(y)
For revolving speed, y is indoor humidity, dm-1Greater than d1, and bmGreater than b1。
In the present embodiment, cleaning is relatively easy to indoor heat exchanger surface by the condensed water of condensed water wash phase
Dust and dirt is tentatively cleaned, so that the upper dust and dirt cleaning of indoor heat exchanger is more thorough.
In one embodiment, when carrying out defrost to indoor heat exchanger, the condensed water of frosting successively turns on indoor heat exchanger
Change steam condition and liquid condition.The period of the condensed water conversion steam state of frosting is defined as the steam clean stage,
The period that the condensed water of frosting is converted into liquid condition is defined as defrosting wash phase.The steam clean stage can be clear in defrosting
It washes before the stage, and when heat exchanger is in the steam clean stage indoors, the running frequency of compressor is higher than at indoor heat exchanger
Make indoor heat exchanger by reducing the running frequency of compressor in the corresponding running frequency of defrosting wash phase namely air conditioner
Defrosting wash phase is entered by the steam clean stage.
Condensed water frosting stage lasting duration can be setting value, and setting value can be any appropriate numerical value, for example,
10min.When the condensed water frosting stage, duration reached setting value, air conditioner is controlled by refrigeration mode and is switched to heating mould
Formula.When air conditioner runs heating mode, indoor heat exchanger sequentially enters steam clean stage and heating drying stage.Steam is clear
The stage of washing refers to converting steam for the condensed water of frosting, be cleaned by steam to indoor heat exchanger surface.And it heats
Drying stage refers to heating indoor heat exchanger surface, removes the condensed water on indoor heat exchanger surface.It exchanges heat indoors
When device is in the steam clean stage, the running frequency of compressor is high frequency, and high frequency is preferably up to running frequency, to guarantee frosting
Condensed water be converted into steam, and indoor fan is in shutdown status and blows out to avoid by steam, guarantees to indoor heat exchanger dirt
The steam clean amount of dirt.
Steam clean stage lasting duration can also be setting value, and setting value can be any appropriate numerical value, for example,
3min.When the duration in steam clean stage reaches setting value, control indoor heat exchanger enters heating drying stage.System
Hot drying stage is not required the running frequency of compressor, and therefore, the compressor frequency for heating drying stage can not be high frequency.
Heat the sustainable certain duration of drying stage, such as 5min.
In the present embodiment, it is removed by the steam in steam clean stage by loose dust and dirt is become, while steam can
It protrudes into inside other dust and dirt being difficult to clean off, so that it is become loose to remove dust and dirt from indoor heat exchanger, so that room
Dust and dirt on interior heat exchanger obtains more thoroughly removing, and the dust and dirt elimination effect of indoor heat exchanger is preferable.
In one embodiment, for air conditioner when running refrigeration mode, coil temperature, the interior for obtaining indoor heat exchanger are wet
Degree, to determine indoor humidity.Specifically, air conditioner obtains the coil temperature of room temperature and indoor heat exchanger, and counting chamber
Difference between interior temperature and coil temperature, to determine indoor humidity according to difference.For example, running frequency is 80Hz, in room
Interior temperature is 10 DEG C, and when coil temperature is 15 DEG C, difference is -5 DEG C, and -5 DEG C of difference and the corresponding interior running frequency 80Hz are wet
Degree about 50%, in one timing of running frequency, difference is smaller, and indoor humidity is bigger.In addition, indoor humidity can directly pass through sky
The humidity sensor on device is adjusted to detect to obtain, humidity sensor can also be the external equipment of air conditioner.Alternatively, passing through air conditioner institute
Outside humidity in the Weather information in area is determining namely air conditioner is by WIFI module connection home network, passes through family
Network obtains the Weather information of air conditioner location, to obtain outside humidity, then using outside humidity as indoor humidity.?
After determining indoor humidity, the time duration of refrigeration mode can be determined according to indoor humidity.For example, humidity is greater than indoors
80%, indoor heat exchanger generation condensed water is less than or equal to 5min；Humidity is greater than 60% and less than or equal to 80% indoors,
Indoor heat exchanger generate condensed water when it is a length of be greater than 5min and be less than or equal to 8min；Humidity is greater than 40% and is less than indoors
Or it is equal to 60%, the duration that indoor heat exchanger generates condensed water is greater than 8min and is less than or equal to 10min.
It should be noted that the relationship between the difference and indoor humidity to room temperature and coil temperature is tested
When, the running frequency of compressor is high frequency, therefore, in the present embodiment, it is thus necessary to determine that whether the frequency of compressor is high frequency, if
It is that indoor humidity is then determined according to the difference of room temperature and coil temperature；If it is not, then being believed according to humidity sensor or weather
It ceases and determines indoor humidity.
In one embodiment, in order to enable air conditioner quickly to generate enough condensed waters, air conditioner exists
During running refrigeration mode, space where air conditioner is humidified, to increase indoor humidity.Air conditioner, which can be run, to be added
Wet model humidifies space where air conditioner, namely humidifies to interior.Certainly, air conditioner linkage has humidification function
The household appliance of energy, when air conditioner operation refrigeration mode carries out the automatically cleaning of indoor heat exchanger, air conditioner is sent out to household appliance
Humidification is sent to request, so that household appliance humidifies interior.Certainly, air conditioner or household appliance can be in advance to indoor progress
Humidification, in order to the automatically cleaning of indoor heat exchanger.
In technical solution provided in this embodiment, indoor heat exchanger is cleaned in air conditioner operation refrigeration mode
When, space where air conditioner is humidified, so that air conditioner quickly generates enough condensed waters and carries out indoor heat exchanger
Cleaning, shortens the cleaning duration of indoor heat exchanger.
It is the second embodiment of the self cleaning method of indoor heat exchanger of the present invention referring to Fig. 3, Fig. 3, is based on first embodiment,
The self cleaning method namely step S20 of the indoor heat exchanger further include:
Step S21 obtains outdoor temperature when the duration of air conditioner operation heating mode reaches preset duration
Step S22, judges whether the outdoor temperature is less than preset temperature；
Step S23 controls compressor shutdown when the outdoor temperature is greater than or equal to preset temperature；
Step S24, when the outdoor temperature is less than preset temperature, control compressor is run with preset operating frequency,
In, the preset operating frequency is greater than zero and is less than running frequency of the compressor in the indoor heat exchanger defrost.
In the present embodiment, when air conditioner terminates the defrost to indoor heat exchanger, compressor shutdown can be directly controlled, thus
So that indoor heat exchanger carries out natural drying, the energy consumption of air conditioner is further saved.Further, terminate in air conditioner to interior
When the defrost of heat exchanger, when the duration of air conditioner operation reaches preset duration, that is, it can determine that air conditioner terminates to change interior
The defrost of hot device.At this point, air conditioner obtains outdoor temperature, and judge whether outdoor temperature is greater than preset temperature, if outdoor temp
Degree be greater than preset temperature, then show that the temperature of external environment is higher, can using natural drying form to indoor heat exchanger into
Row drying, namely control compressor shutdown.If outdoor temperature is less than or equal to preset temperature, show that ambient temperature is lower, from
The time that so drying indoor heat exchanger expends is longer, at this point, air conditioner controls compressor with low-frequency operation heating mode to room
Interior heat exchanger is dried, and low frequency is preset operating frequency, and preset operating frequency can be 0.1Hz.It should be noted that in sky
When device being adjusted to terminate to enter refrigeration mode to the drying of indoor heat exchanger, the coil temperature of indoor heat exchanger can be reduced quickly, if room
Interior heat exchanger terminate drying when coil temperature it is higher when, coil temperature reduce amplitude it is larger so that indoor heat exchanger
Generate noise.The present embodiment is run by control compressor according to lesser running frequency to dry to indoor heat exchange, or
Person is by stopping compressor operation, so that the coil temperature of indoor heat exchanger is smaller, so that air conditioner terminates to indoor heat exchanger
Drying when entering refrigeration mode, it is smaller that the coil temperature of indoor heat exchanger reduces amplitude, and indoor heat exchanger is avoided to generate noise.
It should be noted that if outdoor temperature is higher, air conditioner can control air outlet and return air inlet to open, and increase indoor
Air is exchanged with the heat of air in air-conditioned wind tunnel, so that indoor heat exchanger can comparatively fast remove remaining steam.
In addition, if air conditioner can detect indoor particle concentration, namely the indoor dust of detection when outdoor temperature is higher
Content then continues to run heating mode and indoor heat exchanger is made to enter heating drying stage if particle concentration is higher, with
The steam of indoor heat exchanger surface remaining is avoided to be bonded indoor dust；If particle concentration is lower, air-conditioning body exits system
Heat pattern, and indoor fan operation is controlled, to dry indoor heat exchanger faster.
In technical solution provided in this embodiment, when heat exchanger terminates defrost indoors, outdoor temperature is obtained, if outdoor
Temperature is higher than preset temperature, then controls compressor shutdown, to carry out natural drying to indoor heat exchanger, saves the energy of air conditioner
Consumption.
In one embodiment, air conditioner can judge whether indoor heat exchanger meets using duration by the accumulative of filter screen
Clean conditions.In air conditioner operation, filter screen can adsorb dust, but filter screen can not adsorb the dust in air completely,
Unadsorbed dust can be deposited on indoor heat exchanger surface, and therefore, the accumulative of filter screen characterizes indoor heat exchanger using duration
The dust cumulative extent on surface.In this regard, the second preset duration is arranged in air conditioner, if the accumulative of filter screen reaches the using duration
Two preset durations then determine that indoor heat exchanger needs to carry out the cleaning of dust and dirt.It should be noted that heat exchanger is completed clearly indoors
After washing, the accumulative of filter screen is reset using duration.
In one embodiment, air conditioner can judge whether indoor heat exchanger is full by the accumulative operation duration of fresh air function
Sufficient clean conditions.Specifically, outdoor particle concentration is higher, when air conditioner runs fresh air function, due to indoor heat exchanger
Outdoor air can be cooled down or be heated, so that the particulate matter of outdoor air can be deposited on the surface of indoor heat exchanger.It is right
This, third preset duration is arranged in air conditioner, if the accumulative operation duration of air conditioner operation fresh air function reach third it is default when
When long, then show that the dust and dirt on indoor heat exchanger surface is more, cleaned.
In one embodiment, when carrying out defrost to indoor heat exchanger, the condensed water of frosting successively turns on indoor heat exchanger
Change steam condition and liquid condition.The period of the condensed water conversion steam state of frosting is defined as the steam clean stage,
The period that the condensed water of frosting is converted into liquid condition is defined as defrosting wash phase.The steam clean stage can be clear in defrosting
It washes before the stage, and when heat exchanger is in the steam clean stage indoors, the running frequency of compressor is higher than at indoor heat exchanger
Make indoor heat exchanger by reducing the running frequency of compressor in the corresponding running frequency of defrosting wash phase namely air conditioner
Defrosting wash phase is entered by the steam clean stage.
Condensed water frosting stage lasting duration can be setting value, and setting value can be any appropriate numerical value, for example,
10min.When the condensed water frosting stage, duration reached setting value, air conditioner is controlled by refrigeration mode and is switched to heating mould
Formula.When air conditioner runs heating mode, indoor heat exchanger sequentially enters steam clean stage and heating drying stage.Steam is clear
The stage of washing refers to converting steam for the condensed water of frosting, be cleaned by steam to indoor heat exchanger surface.And it heats
Drying stage refers to heating indoor heat exchanger surface, removes the condensed water on indoor heat exchanger surface.It exchanges heat indoors
When device is in the steam clean stage, the running frequency of compressor is high frequency, and high frequency is preferably up to running frequency, to guarantee frosting
Condensed water be converted into steam, and indoor fan is in shutdown status and blows out to avoid by steam, guarantees to indoor heat exchanger dirt
The steam clean amount of dirt.
Steam clean stage lasting duration can also be setting value, and setting value can be any appropriate numerical value, for example,
3min.When the duration in steam clean stage reaches setting value, control indoor heat exchanger enters heating drying stage.System
Hot drying stage is not required the running frequency of compressor, and therefore, the compressor frequency for heating drying stage can not be high frequency.
Heat the sustainable certain duration of drying stage, such as 5min.
In the present embodiment, it is removed by the steam in steam clean stage by loose dust and dirt is become, while steam can
It protrudes into inside other dust and dirt being difficult to clean off, so that it is become loose to remove dust and dirt from indoor heat exchanger, so that room
Dust and dirt on interior heat exchanger obtains more thoroughly removing, and the dust and dirt elimination effect of indoor heat exchanger is preferable.
In one embodiment, after air conditioner exits heating mode, control indoor fan is in operating status, thus by room
The waste heat of interior heat exchanger is blown out.The operation duration of indoor fan can be any appropriate numerical value, for example, 2min.
The present embodiment is by the way that after air conditioner exits heating mode, control indoor fan is run, to blow out indoor heat exchanger
Waste heat avoid the heat of indoor heat exchanger remaining from damaging the component inside air conditioner.
In one embodiment, after the condensed water frosting stage, air conditioner can control compressor shutdown for a period of time again
Into heating mode, which can be any appropriate numerical value, such as 3min.When air conditioner is by by one section of compressor shutdown
Between, so that the pressure inside compressor tends to be steady, avoiding refrigeration mode from being directly switched to heating mode causes compressor to damage
The case where occur.Further, in compressor shutdown, it can control indoor fan operation, namely tentatively melt by indoor fan
Change the condensed water of frosting, shortens the duration of air conditioner operation heating mode, to save energy consumption.
In one embodiment, air conditioner to indoor heat exchanger carry out defrost duration by air conditioner operation refrigeration mode when
Long and indoor humidity determines that the duration that air conditioner runs refrigeration mode is target duration.Specifically, target duration and room
Interior humidity determines the amount of the condensed water of frosting on indoor heat exchanger, and the amount one that the condensed water of frosting melts in the unit time
It is fixed, therefore, the duration in steam clean stage can be calculated by target duration and indoor humidity, enables air conditioner reasonable
Persistently to indoor heat exchanger carry out defrost duration.
To achieve the above object, the present invention also provides a kind of air conditioner, the air conditioner include memory, processor and
The self-cleaning program of indoor heat exchanger that is stored in the memory and can run on the processor, the indoor heat exchanger
Self-cleaning program the step of realizing the self cleaning method of indoor heat exchanger described in embodiment as above when being executed by processor.
The present invention also provides a kind of computer readable storage medium, the computer readable storage medium includes indoor heat exchange
The self-cleaning program of the self-cleaning program of device, the indoor heat exchanger realizes room described in embodiment as above when being executed by processor
The step of self cleaning method of interior heat exchanger.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal air conditioner (can be hand
Machine, computer, server, air conditioner or network air conditioner etc.) execute method described in each embodiment of the present invention.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of self cleaning method of indoor heat exchanger, which is characterized in that the self cleaning method of the indoor heat exchanger include with
Lower step:
Air conditioner operation refrigeration mode is controlled so that indoor heat exchanger surface generates condensed water and frosting；
When the duration of air conditioner operation refrigeration mode reaches target duration, control air conditioner operation heating mode with
To the indoor heat exchanger carry out defrost, wherein the target duration according to indoor humidity determine, the target duration with it is described
Indoor humidity is negative correlativing relation, alternatively, the relationship of the target duration and the indoor humidity are as follows:F (x) is target duration, and x is indoor humidity, nm-1Greater than n1, and amIt is less than
a1。
2. the self cleaning method of indoor heat exchanger as described in claim 1, which is characterized in that the indoor humidity is according to interior
Difference determination between temperature and the coil temperature of the indoor heat exchanger, the indoor humidity are acquired according to humidity sensor
Humidity determination or the indoor humidity are true according to the outside humidity in the corresponding Weather information in the air conditioner location
It is fixed.
3. the self cleaning method of indoor heat exchanger as described in claim 1, which is characterized in that run and freeze in the air conditioner
During mode, space where the air conditioner is humidified.
4. the self cleaning method of indoor heat exchanger as described in claim 1, which is characterized in that produced in the indoor heat exchanger
When raw and cold condensate, the coil temperature of the indoor heat exchanger is greater than 2 DEG C and less than 20 DEG C.
5. the self cleaning method of indoor heat exchanger as claimed in claim 4, which is characterized in that the air conditioner passes through control room
The revolving speed of inner blower and/or the running frequency of compressor make the coil temperature of the indoor heat exchanger be greater than 2 DEG C and less than 20
℃。
6. the self cleaning method of indoor heat exchanger as claimed in claim 5, which is characterized in that the air conditioner is according to indoor wet
The revolving speed of degree control indoor fan, the relationship of the revolving speed of the indoor fan and the indoor humidity are as follows:F (y) is revolving speed, and y is indoor humidity, dm-1Greater than d1, and bmGreater than b1。
7. the self cleaning method of indoor heat exchanger as claimed in any one of claims 1 to 6, which is characterized in that the interior heat exchange
The self cleaning method of device, further includes:
When the duration of air conditioner operation heating mode reaches preset duration, outdoor temperature is obtained；
When the outdoor temperature is greater than or equal to preset temperature, compressor shutdown is controlled；
When the outdoor temperature is less than preset temperature, control compressor is run with preset operating frequency, wherein the default fortune
Line frequency is greater than zero and is less than running frequency of the compressor in the indoor heat exchanger defrost.
8. the self cleaning method of indoor heat exchanger as claimed in any one of claims 1 to 6, which is characterized in that wet in the interior
When degree is greater than 80%, the duration that the indoor heat exchanger generates condensed water is less than or equal to 5min；It is less than in the indoor humidity
Or when being equal to 80% and being greater than 60%, the duration that the indoor heat exchanger generates condensed water is greater than 5min and is less than or equal to
8min；When the indoor humidity is less than or equal to 60% and is greater than 40%, the indoor heat exchanger generates the duration of condensed water
Greater than 8min and it is less than or equal to 10min.
9. a kind of air conditioner, which is characterized in that the air conditioner includes memory, processor and is stored in the memory simultaneously
The self-cleaning program of the self-cleaning program for the indoor heat exchanger that can be run on the processor, the indoor heat exchanger is processed
The step of self cleaning method such as the described in any item indoor heat exchangers of claim 1-8 is realized when device executes.
10. a kind of computer readable storage medium, which is characterized in that the computer readable storage medium includes indoor heat exchanger
Self-cleaning program, when the cleaning procedure of the indoor heat exchanger is executed by processor realize such as any one of claim 1-8 institute
The step of self cleaning method for the indoor heat exchanger stated.
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