CN110470011A - Control method and device, air-conditioning for air-conditioner defrosting - Google Patents
Control method and device, air-conditioning for air-conditioner defrosting Download PDFInfo
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- CN110470011A CN110470011A CN201910713138.9A CN201910713138A CN110470011A CN 110470011 A CN110470011 A CN 110470011A CN 201910713138 A CN201910713138 A CN 201910713138A CN 110470011 A CN110470011 A CN 110470011A
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- air
- temperature
- heat exchanger
- conditioning
- compressor
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Classifications
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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
- F24F11/42—Defrosting; Preventing freezing of outdoor 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
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2347/00—Details for preventing or removing deposits or corrosion
- F25B2347/02—Details of defrosting cycles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/31—Low ambient temperatures
Abstract
This application involves air-conditioner defrosting technical fields, disclose a kind of control method for air-conditioner defrosting.Control method includes: to control in the case where air-conditioning is defrosted and carry out frequency redution operation to the compressor of air-conditioning；The refrigerant of the outdoor coil temperature and outdoor heat exchanger that obtain outdoor heat exchanger goes out liquid temperature；In the case where outdoor coil temperature and refrigerant go out liquid temperature and meet defrosting exit criteria, control stops carrying out frequency redution operation to compressor.Go out liquid temperature the two parametric synthesis using the coil temperature and refrigerant of outdoor heat exchanger and judge that air-conditioning exits the opportunity of defrosting, so as to effectively improve the control precision for exiting defrosting to control air-conditioning；And the heat exchange amount of outdoor heat exchanger and outdoor environment is reduced by the frequency redution operation to compressor, improve the frosting situation of outdoor heat exchanger, to reduce frost condensation to the adverse effect of air-conditioning itself heating performance.A kind of control device and air-conditioning for air-conditioner defrosting is also disclosed in the application.
Description
Technical field
This application involves air-conditioner defrosting technical fields, for example, be related to a kind of control method and device for air-conditioner defrosting,
Air-conditioning.
Background technique
Currently, the mainstream model of air-conditioning is mostly the heat exchange function for having cooling and warming double mode, here, air-conditioning is cryogenically
Under area or the biggish weather conditions of wind and snow, user is usually to adjust air-conditioning to heating mode, indoor to be promoted using air-conditioning
The temperature of environment；In air conditioner in operation heating operations, the outdoor heat exchanger of outdoor unit is to play to absorb from outdoor environment
The effect of the evaporator of heat is influenced by the temperature and humidity of outdoor environment, and the more ice of condensation is easy on outdoor heat exchanger
Frost, and meeting is so that the heating capacity of air-conditioning can be lower and lower, therefore imitates to guarantee to heat after simultaneously frost knot arrives certain thickness
Fruit avoids frost condensation excessive, it is therefore necessary to defrost to outdoor heat exchanger.
Here, the mode to defrost to outdoor heat exchanger is mainly include the following types: first is that reverse cycle defrosting, air-conditioning carry out
When reverse cycle defrosting, the high temperature refrigerant of compressor discharge first flows through outdoor heat exchanger, to melt frost using refrigerant heat；Second is that
Increase electric heater unit on the refrigerant pipeline of air-conditioning, the refrigerant for flowing into outdoor heat exchanger is heated using electric heater unit, in turn
Melt the frost condensed on outdoor heat exchanger using refrigerant heat；Third is that adjusting the air supply rates such as compressor, electric expansion valve
Operating parameter, to change the temperature and pressure state of refrigerant in refrigerant pipeline, making it also can be played to outdoor heat exchanger defrosting
Effect.
During realizing the embodiment of the present disclosure, at least there are the following problems in the related technology for discovery:
Since the Defrost mode of above-mentioned several pairs of outdoor heat exchangers more or less all can be to the normal heating performance structure of air-conditioning
At influence, therefore air-conditioning will do it judgement before exiting defrosting, and then control whether air-conditioning exits defrosting according to judging result.
In the related technology, it removes generally by judging whether to exit to the mode compared with numerical value between outdoor environment temperature and frost point temperature
Frost.Since the solidifying white situation of outdoor heat exchanger can be influenced by many factors such as outdoor environment and self-operating state simultaneously,
Therefore the above-mentioned judgment mode for whether exiting defrosting mode is excessively rough, is easy to make air-conditioning exit defrosting mode in advance and cause to remove
Frost is not thorough, alternatively, after the completion of defrosting continuous service defrosting mode and influence the normal heating performance of air-conditioning.
Summary of the invention
In order to which some aspects of the embodiment to disclosure have basic understanding, simple summary is shown below.It is described general
Including is not extensive overview, nor to determine key/critical component or describe the protection scope of these embodiments, but is made
For the preamble of following detailed description.
The embodiment of the present disclosure provides a kind of control method and device for air-conditioner defrosting, air-conditioning, to solve related skill
The judgment mode that defrosting mode whether is exited in art is excessively rough, is easy to make air-conditioning exit defrosting mode in advance and cause defrosting not
Thoroughly, alternatively, after the completion of defrosting continuous service defrosting mode and the technical issues of influence air-conditioning normal heating performance.
In some embodiments, the control method for air-conditioner defrosting includes:
In the case where air-conditioning is defrosted, controls and frequency redution operation is carried out to the compressor of air-conditioning；
The refrigerant of the outdoor coil temperature and outdoor heat exchanger that obtain outdoor heat exchanger goes out liquid temperature；
In the case where outdoor coil temperature and refrigerant go out liquid temperature and meet defrosting exit criteria, control stops to compressor
Carry out frequency redution operation.
In some embodiments, the control device for air-conditioner defrosting includes processor and is stored with program instruction
Memory, processor are configured as when executing program instructions, and execute the above-mentioned control method for air-conditioner defrosting.
In some embodiments, the air-conditioning includes:
Refrigerant circulation circuit is connected by outdoor heat exchanger, indoor heat exchanger, throttling set and compressor by refrigerant pipeline
It constitutes；
The above-mentioned control device for air-conditioner defrosting, with compression mechatronics.
The control method and device for air-conditioner defrosting of embodiment of the present disclosure offer, air-conditioning, may be implemented following technology
Effect:
Air-conditioning goes out the two ginsengs of liquid temperature during Defrost operation, using the coil temperature and refrigerant of outdoor heat exchanger
Number synthesis judges that air-conditioning exits the opportunity of defrosting, so as to effectively improve the control precision for exiting defrosting to control air-conditioning, keeps away
Exempt from air-conditioning to exit defrosting mode in advance and defrosting is caused to be not thorough, alternatively, continuous service defrosting mode and shadow after the completion of defrosting
Ring the normal heating performance of air-conditioning；And the heat exchange of outdoor heat exchanger and outdoor environment is reduced by the frequency redution operation to compressor
Amount, and then the adverse effect of the temperature factors such as outdoor heat exchanger hull-skin temperature is too low caused by reducing because largely absorbing heat, from
And improve the frosting situation of outdoor heat exchanger, to reduce frost condensation to the adverse effect of air-conditioning itself heating performance.
Above general description and it is discussed below be only it is exemplary and explanatory, be not used in limitation the application.
Detailed description of the invention
One or more embodiments are illustrated by corresponding attached drawing, these exemplary illustrations and attached drawing
The restriction to embodiment is not constituted, the element with same reference numbers label is shown as similar element in attached drawing, and attached drawing is not
Composition limitation, and wherein:
Fig. 1 is the flow diagram for the control method for air-conditioner defrosting that the embodiment of the present disclosure provides；
Fig. 2 is the flow diagram for the control method for air-conditioner defrosting that the embodiment of the present disclosure provides；
Fig. 3 is the structural schematic diagram for the control device for air-conditioner defrosting that the embodiment of the present disclosure provides；
Fig. 4 is the structural schematic diagram for the control device for air-conditioner defrosting that the embodiment of the present disclosure provides.
Specific embodiment
The characteristics of in order to more fully hereinafter understand the embodiment of the present disclosure and technology contents, with reference to the accompanying drawing to this public affairs
The realization for opening embodiment is described in detail, appended attached drawing purposes of discussion only for reference, is not used to limit the embodiment of the present disclosure.
In technical description below, for convenience of explanation for the sake of, disclosed embodiment is fully understood with providing by multiple details.
However, one or more embodiments still can be implemented in the case where without these details.It in other cases, is simplification
Attached drawing, well known construction and device can simplify displaying.
Fig. 1 is the flow diagram for the control method for air-conditioner defrosting that the embodiment of the present disclosure provides.
A kind of control method for air-conditioner defrosting is provided in the embodiment of the present disclosure, as shown in Figure 1, including following step
It is rapid:
S101: it in the case where air-conditioning is defrosted, controls and frequency redution operation is carried out to the compressor of air-conditioning.
In embodiment, when frosting problem occurs in the outdoor heat exchanger of air-conditioner outdoor unit, outdoor environment is mostly in temperature
Lower, the biggish bad working environments of humidity, user is usually that air-conditioning is set as heating mode operation at this time, to utilize air-conditioning to room
Interior environment carries out heating heating.Therefore the control method for air-conditioner defrosting that the embodiment of the present disclosure provides is in air-conditioning to heat
The control flow enabled when mode operation.
Optionally, judge by way of compared with numerical value between outdoor environment temperature and frost point temperature air-conditioning whether need into
Row defrosting.When outdoor environment temperature is lower than frost point temperature, then it is assumed that air-conditioning defrosts；When outdoor environment temperature is higher than
When frost point temperature, then it is assumed that air-conditioning is without defrosting.
The heat exchange amount of outdoor heat exchanger and outdoor environment is reduced by the frequency redution operation to compressor, and then is reduced because a large amount of
The adverse effect for the temperature factors such as outdoor heat exchanger hull-skin temperature is too low caused by heat absorption, so as to improve outdoor heat exchanger
Frosting situation, to reduce frost condensation to the adverse effect of air-conditioning itself heating performance.
S102: the refrigerant of the outdoor coil temperature and outdoor heat exchanger that obtain outdoor heat exchanger goes out liquid temperature.
Optionally, the coil pipe position of the outdoor heat exchanger of air-conditioner outdoor unit is provided with one first temperature sensor, this
One temperature sensor can be used for detecting the real time temperature of coil pipe position.Therefore, acquired outdoor coil pipe used temperature in step s 102
Degree can be the real time temperature by coil pipe position detected by the first temperature sensor.
The temperature change of the coil pipe position of outdoor heat exchanger can intuitively reflect in external outdoor environment temperature and interior
The temperature variations of the refrigerant pipeline of outdoor heat exchanger, are in addition typically also outdoor heat exchange under the refrigerant temperature joint effect in portion
Device is easy to appear the pipeline position of frosting problem.Therefore the outdoor coil temperature got, which can be used as, measures air-conditioning inside and outside pair
The reference factor that the frosting that outdoor heat exchanger generates jointly influences.
Optionally, the outdoor heat exchanger of air-conditioner outdoor unit is provided with a second temperature sensor, second temperature sensing
Device can be used for detecting the real time temperature of the refrigerant on the refrigerant outlet tube road for flowing through outdoor heat exchanger.Therefore, institute in step s 102
The refrigerant of the outdoor heat exchanger of acquisition, which goes out liquid temperature, can be real-time temperature by refrigerant detected by second temperature sensor
Degree.Here, when refrigerant outlet tube road is run for air-conditioning with heating mode refrigerant outflow outdoor heat exchanger via pipeline.
The temperature for flowing out the refrigerant of outdoor heat exchanger is to can reflect out the heat exchange effect of outdoor heat exchanger and outdoor environment
Rate, and heat exchanger effectiveness then will receive the influence of the frosting degree of outdoor heat exchanger；Here, air-conditioning frosting degree is lower, ice
In the case that frost thickness are relatively thin, influence of the frost to heat exchange is smaller, the heat that the refrigerant after flowing through outdoor heat exchanger is absorbed
It is more；And in the case where air-conditioning frosting degree is higher, frost thickness is thicker, frost is affected to heat exchange, flows through room
The heat that refrigerant after external heat exchanger is absorbed is less.Therefore the refrigerant that acquires, which goes out liquid temperature and can be used as, measures air-conditioning and changes
The reference factor of the frosting degree of hot device.
S103: in the case where outdoor coil temperature and refrigerant go out liquid temperature and meet defrosting exit criteria, control stopping pair
Compressor carries out frequency redution operation.
In the case where outdoor coil temperature and refrigerant go out liquid temperature and meet defrosting exit criteria, control stops adjustment air-conditioning
Compressor operating status, mitigate compressor carry out frequency redution operation influenced caused by the normal heating performance of air-conditioning.
Optionally, defrost exit criteria are as follows:
T1≥T01, t1≥t01, T2≥T02, and t2≥t02
Wherein, T1For the outdoor coil temperature of outdoor heat exchanger, T01For the first preset temperature, t1For T1≥T01It is lasting when
It is long, t01For the first preset duration, T2Go out liquid temperature, T for the refrigerant of outdoor heat exchanger02For the second preset temperature, t2For T2≥T02
Duration, t02For the second preset duration.
Optionally, the first preset temperature is the outdoor heat exchanger defrosting detected in air-conditioner defrosting test process prestored
The correction temperature of outdoor coil temperature after the completion.After the completion of outdoor heat exchanger defrosting, outdoor coil temperature can be due to white water
There is certain fluctuation in the reasons such as evaporation.Therefore the outdoor heat exchanger defrosting detected in air-conditioner defrosting test process is completed
Outdoor coil temperature afterwards is corrected, and improves the accuracy of defrosting exit criteria.
First preset temperature can be calculated by the following formula to obtain:
T01=α * T001
Wherein, α is the first proportionality coefficient, T001For the outdoor heat exchanger defrosting detected in air-conditioner defrosting test process
Outdoor coil temperature after the completion.The value range of α is [1.1-1.3], for example, 1.1,1.15,1.2,1.25,1.3.
Optionally, the second preset temperature is the outdoor heat exchanger defrosting detected in air-conditioner defrosting test process prestored
Refrigerant after the completion goes out the correction temperature of liquid temperature.After the completion of outdoor heat exchanger defrosting, due to condensing on outdoor heat exchanger
The reasons such as white water evaporation will affect the heat exchanger effectiveness of outdoor heat exchanger and outdoor environment, and then the refrigerant detected is caused to go out liquid
Refrigerant after temperature and practical defrosting when outdoor heat exchanger stable operation goes out between liquid temperature deviation occur.Therefore in sky
Refrigerant after the completion of adjusting the outdoor heat exchanger detected in defrosting test process to defrost goes out liquid temperature and is corrected, and improves defrosting and moves back
The accuracy of condition out.
Second preset temperature can be calculated by the following formula to obtain:
T02=β * T002
Wherein, β is the second proportionality coefficient, T002For the outdoor heat exchanger defrosting detected in air-conditioner defrosting test process
Refrigerant after the completion goes out liquid temperature.The value range of β is [1.1-1.4], for example, 1.1,1.2,1.3,1.4.
Optionally, the value range of the first preset duration is [2s, 5s] (s: second), for example, 2s, 3s, 4s, 5s；Second is pre-
If the value range of duration is [2s, 5s], for example, 2s, 3s, 4s, 5s.
In the defrosting exit criteria, the outdoor coil temperature of outdoor heat exchanger is greater than the first preset temperature and duration
Greater than the first preset duration, it can intuitively reflect that the defrost of outdoor heat exchanger outer surface is completed；The refrigerant of outdoor heat exchanger goes out liquid
Temperature is greater than the second preset temperature and duration is greater than the second preset duration, can reflect out the heating performance of outdoor heat exchanger
Restore at least frost or frostless situation.Therefore, it can stop carrying out frequency redution operation to compressor, exit the Defrost operation mould of air-conditioning
Formula.
In the present embodiment, air-conditioning goes out liquid during Defrost operation, using the coil temperature and refrigerant of outdoor heat exchanger
The two parametric synthesis of temperature judge that air-conditioning exits the opportunity of defrosting, exit defrosting to control air-conditioning so as to effectively improve
Precision is controlled, avoids air-conditioning from exiting defrosting mode in advance and defrosting is caused to be not thorough, alternatively, continuous service removes after the completion of defrosting
White mode and influence the normal heating performance of air-conditioning.In addition, reducing outdoor heat exchanger and room by the frequency redution operation to compressor
The heat exchange amount of external environment, and then the temperature factors such as outdoor heat exchanger hull-skin temperature is too low caused by reducing because largely absorbing heat
Adverse effect, so as to improve the frosting situation of outdoor heat exchanger, to reduce frost condensation to the unfavorable of air-conditioning itself heating performance
It influences.
Fig. 2 is the flow diagram for the control method for air-conditioner defrosting that the embodiment of the present disclosure provides.
A kind of control method for air-conditioner defrosting is provided in the embodiment of the present disclosure, as shown in Fig. 2, including following step
It is rapid:
S201: judge whether air-conditioning defrosts.
S202: in the case where air-conditioning is defrosted, the indoor coil pipe of the indoor heat exchanger of air-conditioning is obtained.
Optionally, the coil pipe position of the indoor heat exchanger of air conditioner indoor unit is provided with a third temperature sensor, the third
Temperature sensor can be used for detecting the real time temperature of its coil pipe position.Therefore, indoor disk acquired in step S202
Tube temperature degree can be the real time temperature by coil pipe position detected by the third temperature sensor.
Direct shadow of the temperature change of the coil pipe position of indoor heat exchanger by the temperature for the refrigerant for flowing into indoor heat exchanger
It rings, therefore can reflect air-conditioning from side to the situation of change of the heating capacity of indoor environment, due in different frosting situations
The heating capacity of lower air-conditioning can change therewith, therefore indoor coil pipe is air-conditioner outdoor unit frosting situation to air-conditioning heating
The reference factor of the influence of fading height of ability.
S203: judge whether indoor coil pipe is less than third preset temperature.
Third preset temperature is indoor coil pipe when air-conditioning is frostless or white Space-Time Modulation heat is run less.The interior of air-conditioning
The indoor coil pipe of heat exchanger is less than third preset temperature, shows influence of the air-conditioning by outdoor heat exchanger of air conditioner frosting, makes
Thermal energy power decline.Therefore control carries out frequency redution operation to compressor, reduces the heat exchange amount of outdoor heat exchanger and outdoor environment, improves
The frosting situation of outdoor heat exchanger.
S204: in the case where the indoor coil pipe of the indoor heat exchanger of air-conditioning is less than third preset temperature, according to room
First temperature gap of inner coil pipe temperature and third preset temperature obtains first object frequency reducing value.
First temperature gap is larger, then illustrates that air-conditioning heating ability is poor, and the frosting degree of outdoor heat exchanger of air conditioner is more
Seriously, the frequency reducing value set at this time to compressor is larger, accelerates defrost；First temperature gap is smaller, then illustrate heating capacity compared with
Good, the frosting lesser extent of outdoor heat exchanger of air conditioner can suitably reduce the frequency reducing value of compressor, reduce compressor frequency reducing to sky
Align the influence of normal heating performance.Therefore, the first object frequency reducing value of compressor can be determined according to the first temperature gap.
Optionally, according to the first temperature gap, corresponding first frequency reducing value is obtained from the first incidence relation and by first
Frequency reducing value is as first object frequency reducing value.
It include the corresponding relationship of one or more first temperature gaps and the first frequency reducing value in first incidence relation.For example,
Corresponding relationship (wherein, the Δ T of a kind of optional first temperature gap and the first frequency reducing value is shown in table 11=T3-T03, Δ T1
For the first temperature gap, T3For the indoor coil pipe of indoor heat exchanger, T03For third preset temperature):
1: the first incidence relation of table
| First temperature gap (unit: DEG C) | First frequency reducing value (unit: Hz) |
| a11<ΔT1≤a12 | Δh11 |
| a12<ΔT1≤a13 | Δh12 |
| a13<ΔT1 | Δh13 |
In first incidence relation, the first frequency reducing value and the first temperature gap are to be positively correlated.I.e. the first temperature gap is bigger, then
First frequency reducing value is bigger；And the first temperature gap is smaller, then the first frequency reducing value is with regard to smaller.
S205: the current operation frequency based on compressor, control carry out frequency reducing to compressor according to first object frequency reducing value
Operation.
After obtaining first object frequency reducing value, the current operation frequency based on compressor is controlled according to first object frequency reducing
Value carries out frequency redution operation to compressor, improves the frosting situation of outdoor heat exchanger.
S206: the refrigerant of the outdoor coil temperature and outdoor heat exchanger that obtain outdoor heat exchanger goes out liquid temperature.
S207: judge that outdoor coil temperature and refrigerant go out whether liquid temperature meets defrosting exit criteria.
S208: in the case where outdoor coil temperature and refrigerant go out liquid temperature and meet defrosting exit criteria, control stopping pair
Compressor carries out frequency redution operation.
In the present embodiment, improves defrosting effect by adjusting the operating status of the compressor of air-conditioning to will affect air-conditioning normal
Heating performance.Therefore in the case where outdoor coil temperature and refrigerant go out liquid temperature and meet defrosting exit criteria, control stops adjusting
The operating status of the compressor of whole air-conditioning is simultaneously restored to the running frequency of normal heating mode, and air-conditioning normally heating property is restored
Energy.
Fig. 3 is the flow diagram for the control method for air-conditioner defrosting that the embodiment of the present disclosure provides.
A kind of control method for air-conditioner defrosting is provided in the embodiment of the present disclosure, as shown in figure 3, including following step
It is rapid:
S301: judge whether air-conditioning defrosts.
S302: in the case where air-conditioning is defrosted, the outdoor coil temperature and outdoor environment temperature of air-conditioning are obtained
Second temperature difference.
Optionally, air-conditioner outdoor unit is provided with one the 4th temperature sensor, and the 4th temperature sensor can be used for sensing chamber
External environment temperature.Therefore, acquired outdoor environment temperature can be through the 4th temperature sensor institute in step s 302
The real time temperature detected.
S303: judge whether second temperature difference is less than fiducial temperature threshold value.
Optionally, the value range of fiducial temperature threshold value is [15 DEG C, 25 DEG C] (DEG C: degree Celsius), for example, 15 DEG C, 20 DEG C,
25℃。
The second temperature difference of outdoor coil temperature and outdoor environment temperature be less than fiducial temperature threshold value, show air-conditioning by
The influence of outdoor heat exchanger of air conditioner frosting, heating capacity decline.Therefore control carries out frequency redution operation to compressor, reduces outdoor and changes
The heat exchange amount of hot device and outdoor environment improves the frosting situation of outdoor heat exchanger.
S304: in the case where second temperature difference is less than fiducial temperature threshold value, second is obtained according to second temperature difference
Target frequency reducing value.
Second temperature difference is smaller, then illustrates that air-conditioning heating ability is poor, and the frosting degree of outdoor heat exchanger of air conditioner is more
Seriously, the frequency reducing value set at this time to compressor is larger, accelerates defrost；Second temperature difference is larger, then illustrate heating capacity compared with
Good, the frosting lesser extent of outdoor heat exchanger of air conditioner can suitably reduce the frequency reducing value of compressor, reduce compressor frequency reducing to sky
Align the influence of normal heating performance.Therefore, the second target frequency reducing value of compressor can be determined according to second temperature difference.
Optionally, according to second temperature difference, corresponding second frequency reducing value is obtained from the second incidence relation and by second
Frequency reducing value is as the second target frequency reducing value.
It include the corresponding relationship of one or more second temperature differences and the second frequency reducing value in second incidence relation.For example,
Corresponding relationship (wherein, the Δ T of a kind of optional second temperature difference and the second frequency reducing value is shown in table 22=T1-T4, Δ T1
For second temperature difference, T4For outdoor environment temperature):
2: the second incidence relation of table
| Second temperature difference (unit: DEG C) | Second frequency reducing value (unit: Hz) |
| a21<ΔT2≤a22 | Δh21 |
| a22<ΔT2≤a23 | Δh22 |
| a23<ΔT2 | Δh23 |
In second incidence relation, the second frequency reducing value and second temperature difference are negative correlation.That is second temperature difference is bigger, then
Second frequency reducing value is with regard to smaller；And second temperature difference is smaller, then the second frequency reducing value is bigger.
S305: the current operation frequency based on compressor, control carry out frequency reducing to compressor according to the second target frequency reducing value
Operation.
After obtaining the second target frequency reducing value, the current operation frequency based on compressor is controlled according to the second target frequency reducing
Value carries out frequency redution operation to compressor, improves the frosting situation of outdoor heat exchanger.
S306: the refrigerant of the outdoor coil temperature and outdoor heat exchanger that obtain outdoor heat exchanger goes out liquid temperature.
S307: judge that outdoor coil temperature and refrigerant go out whether liquid temperature meets defrosting exit criteria.
S308: in the case where outdoor coil temperature and refrigerant go out liquid temperature and meet defrosting exit criteria, control stopping pair
Compressor carries out frequency redution operation.
In the present embodiment, improves defrosting effect by adjusting the running frequency of the compressor of air-conditioning to will affect air-conditioning normal
Heating performance.Therefore in the case where outdoor coil temperature and refrigerant go out liquid temperature and meet defrosting exit criteria, control stops adjusting
The running frequency of the compressor of whole air-conditioning is simultaneously restored to the running frequency of normal heating mode, and air-conditioning normally heating property is restored
Energy.
In the above-described embodiments, the influence size due to the height of the frosting degree of outdoor heat exchanger to air-conditioning heating performance
Difference, and then it is different to influence amplitude to the temperature change of the first temperature gap with second temperature difference, therefore the application is respective
It is provided with an individual incidence relation, air-conditioning can select according to actual needs one of incidence relation to determine corresponding frequency reducing
Value.
Optionally, the incidence relation specifically selected can also be determined according to the heating needs of active user, for example, current
When the heating needs of user are lower, then the second incidence relation is selected, at this time mainly in view of outdoor heat exchanger frosting is for room
The influence of outer coil temperature；And when the heating needs of active user are higher, then the first incidence relation is selected, is mainly examined at this time
Consider indoor coil pipe is influenced by the refrigerant temperature flowed out after exchanging heat.
The correlation ratio of first incidence relation is greater than the correlation ratio in the second incidence relation.The temperature difference of i.e. same numerical value
In the case of value, corresponding first frequency reducing value is greater than corresponding second frequency reducing value in the second incidence relation in the first incidence relation.
Here, the heating needs of active user can heat temperature by the target set to air-conditioning and be determined.For example,
Air-conditioning is preset with a heating temperature threshold, when the target of user's actual set heating temperature is less than the heating temperature threshold, then
Illustrate that the heating needs of user at this time are lower；And when the target of user's actual set heating temperature is greater than or equal to the heating temperature
When threshold value, then illustrate the heating needs height of user at this time.
In the embodiment of the present disclosure, air-conditioning can not only be timely triggered according to the practical frosting situation of air-conditioning for outdoor heat exchange
The defrosting of device operates, while the heating that user can also be taken into account when executing the defrosting to compressor frequency redution operation and operating needs
It asks, to fully ensure that air-conditioning during defrosting to the control requirement of users'comfort.
Fig. 4 is the structural schematic diagram for the control device for air-conditioner defrosting that the embodiment of the present disclosure provides.
The embodiment of the present disclosure provides a kind of control device for air-conditioner defrosting, and structure is as shown in Figure 4, comprising:
The embodiment of the present disclosure provides a kind of control device for air-conditioner defrosting, and structure is as shown in Figure 4, comprising:
Processor (processor) 40 and memory (memory) 41 can also include communication interface
(Communication Interface) 42 and bus 43.Wherein, processor 40, communication interface 42, memory 41 can pass through
Bus 43 completes mutual communication.Communication interface 42 can be used for information transmission.Processor 40 can call in memory 41
Logical order, to execute the control method for air-conditioner defrosting of above-described embodiment.
In addition, the logical order in above-mentioned memory 41 can be realized and as only by way of SFU software functional unit
Vertical product when selling or using, can store in a computer readable storage medium.
Memory 41 is used as a kind of computer readable storage medium, can be used for storing software program, journey can be performed in computer
Sequence, such as the corresponding program instruction/module of the method in the embodiment of the present disclosure.Processor 40 is stored in memory 41 by operation
Program instruction/module be used for air-conditioning in realization above method embodiment thereby executing functional application and data processing
The control method of defrosting.
Memory 41 may include storing program area and storage data area, wherein storing program area can storage program area, extremely
Application program needed for a few function；Storage data area, which can be stored, uses created data etc. according to terminal device.This
Outside, memory 41 may include high-speed random access memory, can also include nonvolatile memory.
The embodiment of the present disclosure provides a kind of air-conditioning, comprising:
Refrigerant circulation circuit is connected by outdoor heat exchanger, indoor heat exchanger, throttling set and compressor by refrigerant pipeline
It constitutes；
The above-mentioned control device for air-conditioner defrosting, with compression mechatronics.
The air-conditioning that the embodiment of the present disclosure provides goes out the two ginsengs of liquid temperature using the coil temperature and refrigerant of outdoor heat exchanger
Number synthesis judges that air-conditioning exits the opportunity of defrosting, so as to effectively improve the control precision for exiting defrosting to control air-conditioning；And
The heat exchange amount of outdoor heat exchanger and outdoor environment is reduced by the frequency redution operation to compressor, and then is reduced because a large amount of heat absorptions are made
At the temperature factors such as outdoor heat exchanger hull-skin temperature is too low adverse effect, so as to improve the frosting shape of outdoor heat exchanger
Condition.
The embodiment of the present disclosure provides a kind of computer readable storage medium, is stored with computer executable instructions, described
Computer executable instructions are arranged to carry out the above-mentioned control method for air-conditioner defrosting.
The embodiment of the present disclosure provides a kind of computer program product, and the computer program product includes being stored in calculating
Computer program on machine readable storage medium storing program for executing, the computer program include program instruction, when described program instruction is calculated
When machine executes, the computer is made to execute the above-mentioned control method for air-conditioner defrosting.
Above-mentioned computer readable storage medium can be transitory computer readable storage medium, be also possible to non-transient meter
Calculation machine readable storage medium storing program for executing.
The technical solution of the embodiment of the present disclosure can be embodied in the form of software products, which deposits
Storage in one storage medium, including one or more instruction is used so that computer equipment (can be personal computer,
Server or the network equipment etc.) execute embodiment of the present disclosure the method all or part of the steps.And storage above-mentioned is situated between
Matter can be non-transient storage media, comprising: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), with
Machine accesses a variety of Jie that can store program code such as memory (RAM, Random Access Memory), magnetic or disk
Matter is also possible to transitory memory medium.
Above description and attached drawing sufficiently illustrate embodiment of the disclosure, to enable those skilled in the art to practice
They.Other embodiments may include structure, logic, it is electrical, process and other change.Embodiment only represents
Possible variation.Unless explicitly requested, otherwise individual components and functionality is optional, and the sequence operated can change.
The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.The embodiment of the present disclosure
Range includes the entire scope of claims and all obtainable equivalents of claims.When for the application
When middle, although term " first ", " second " etc. may be used in this application to describe each element, these elements should not be by
To the limitation of these terms.These terms are only used to differentiate an element with another element.For example, not changing description
Meaning in the case where, first element can be called second element, and same, and second element can be called first element,
As long as " first element " that is occurred unanimously renames and " second element " occurred unanimously renames.First
Element and second element are all elements, but can not be identical element.Moreover, word used herein is only used for describing
Embodiment and it is not used in limitation claim.As used in the description in embodiment and claim, unless context
It clearly illustrates, otherwise "one" (a) of singular, "one" (an) and " described " (the) is intended to equally include plural shape
Formula.Similarly, term "and/or" refers to and associated lists comprising one or more as used in this specification
Any and all possible combination.In addition, when in the application, term " includes " (comprise) and its modification " packet
Include " (comprises) and/or feature, entirety, step, operation, element and/or group including the statement such as (comprising) fingers
The presence of part, but it is not excluded for one or more other features, entirety, step, operation, element, component and/or these point
The presence or addition of group.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method or equipment for including the element.Herein, each embodiment emphasis
What is illustrated can be the difference from other embodiments, and the same or similar parts in each embodiment can refer to each other.It is right
For the method disclosed in embodiment, product etc., if it is corresponding with method part disclosed in embodiment, related place
It may refer to the description of method part.
It will be appreciated by those of skill in the art that unit described in conjunction with the examples disclosed in the embodiments of the present disclosure and
Algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually with hard
Part or software mode execute, and can depend on the specific application and design constraint of technical solution.The technical staff
Described function can be realized using distinct methods to each specific application, but this realization is it is not considered that exceed
The range of the embodiment of the present disclosure.The technical staff can be understood that, for convenience and simplicity of description, foregoing description
The specific work process of system, device and unit, can refer to corresponding processes in the foregoing method embodiment, no longer superfluous herein
It states.
In embodiments disclosed herein, disclosed method, product (including but not limited to device, equipment etc.) can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
Divide, can be only a kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or
Component can be combined or can be integrated into another system, or some features can be ignored or not executed.In addition, shown
Or the mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, device or unit it is indirect
Coupling or communication connection can be electrical property, mechanical or other forms.The unit as illustrated by the separation member can be or
Person, which may not be, to be physically separated, and component shown as a unit may or may not be physical unit
With in one place, or may be distributed over multiple network units.Portion therein can be selected according to the actual needs
Point or whole unit realize the present embodiment.In addition, each functional unit in the embodiments of the present disclosure can integrate at one
In processing unit, it is also possible to each unit and physically exists alone, a list can also be integrated in two or more units
In member.
The flow chart and block diagram in the drawings show system, the method and computer program products according to the embodiment of the present disclosure
Architecture, function and operation in the cards.In this regard, each box in flowchart or block diagram can represent one
A part of module, section or code, a part of the module, section or code include it is one or more for realizing
The executable instruction of defined logic function.In some implementations as replacements, function marked in the box can also be with
Occur different from the sequence marked in attached drawing.For example, two continuous boxes can actually be basically executed in parallel, they
Sometimes it can also execute in the opposite order, this can be depended on the functions involved.Flow chart and block diagram institute in the accompanying drawings
In corresponding description, operation corresponding to different boxes or step can also be to be different from sequence hair disclosed in description
Raw, there is no specific sequences between sometimes different operations or step.For example, two continuous operations or step actually may be used
To be basically executed in parallel, they can also be executed in the opposite order sometimes, this can be depended on the functions involved.Block diagram
And/or the combination of each box in flow chart and the box in block diagram and or flow chart, it can the function as defined in executing
Can or the dedicated hardware based system of movement realize, or can come using a combination of dedicated hardware and computer instructions real
It is existing.
Claims (10)
1. a kind of control method for air-conditioner defrosting characterized by comprising
In the case where air-conditioning is defrosted, controls and frequency redution operation is carried out to the compressor of the air-conditioning；
The refrigerant of the outdoor coil temperature and the outdoor heat exchanger that obtain the outdoor heat exchanger goes out liquid temperature；
In the case where the outdoor coil temperature and the refrigerant go out liquid temperature and meet defrosting exit criteria, control stops to institute
It states compressor and carries out frequency redution operation.
2. control method according to claim 1, which is characterized in that the defrosting exit criteria are as follows:
T1≥T01, t1≥t01, T2≥T02, and t2≥t02
Wherein, T1For the outdoor coil temperature of outdoor heat exchanger, T01For the first preset temperature, t1For T1≥T01Duration,
t01For the first preset duration, T2Go out liquid temperature, T for the refrigerant of outdoor heat exchanger02For the second preset temperature, t2For T2≥T02Hold
Continuous duration, t02For the second preset duration.
3. control method according to claim 1 or 2, which is characterized in that control carries out frequency redution operation to the compressor,
Include:
In the case where the indoor coil pipe of the indoor heat exchanger of the air-conditioning is less than third preset temperature, control to the pressure
Contracting machine carries out frequency redution operation.
4. control method according to claim 3, which is characterized in that control carries out frequency redution operation, packet to the compressor
It includes:
First object frequency reducing value is obtained according to the first temperature gap of the indoor coil pipe and the third preset temperature；
Based on the current operation frequency of the compressor, control drops the compressor according to the first object frequency reducing value
Frequency operates.
5. control method according to claim 4, which is characterized in that obtain described first according to first temperature gap
Target frequency reducing value, comprising:
According to first temperature gap, corresponding first frequency reducing value is obtained from the first incidence relation；
Using the first frequency reducing value as the first object frequency reducing value.
6. control method according to claim 1 or 2, which is characterized in that control carries out frequency redution operation to the compressor,
Include:
In the case where the second temperature difference of the outdoor coil temperature and outdoor environment temperature is less than fiducial temperature threshold value, control
System carries out frequency redution operation to the compressor.
7. control method according to claim 6, which is characterized in that control carries out frequency redution operation, packet to the compressor
It includes:
The second target frequency reducing value is obtained according to the second temperature difference；
Based on the current operation frequency of the compressor, control drops the compressor according to the second target frequency reducing value
Frequency operates.
8. control method according to claim 7, which is characterized in that obtain described second according to the second temperature difference
Target frequency reducing value, comprising:
According to the second temperature difference, corresponding second frequency reducing value is obtained from the second incidence relation；
Using the second frequency reducing value as the second target frequency reducing value.
9. a kind of control device for air-conditioner defrosting, including processor and the memory for being stored with program instruction, feature exists
In the processor is configured to executing as claimed in any one of claims 1 to 8 be used for when executing described program instruction
The control method of air-conditioner defrosting.
10. a kind of air-conditioning characterized by comprising
Refrigerant circulation circuit connects structure by refrigerant pipeline by outdoor heat exchanger, indoor heat exchanger, throttling set and compressor
At；
The control device as claimed in claim 9 for being used for air-conditioner defrosting, with the compression mechatronics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910713138.9A CN110470011A (en) | 2019-08-02 | 2019-08-02 | Control method and device, air-conditioning for air-conditioner defrosting |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910713138.9A CN110470011A (en) | 2019-08-02 | 2019-08-02 | Control method and device, air-conditioning for air-conditioner defrosting |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536674A (en) * | 2020-05-13 | 2020-08-14 | 广东美的制冷设备有限公司 | High-temperature sterilization control method for air conditioner, air conditioner and computer storage medium |
| CN113819578A (en) * | 2021-10-25 | 2021-12-21 | 宁波奥克斯电气股份有限公司 | Air conditioner control method and air conditioner |
| CN113847741A (en) * | 2021-08-30 | 2021-12-28 | 青岛海尔空调电子有限公司 | Method and device for defrosting water heater, water heater and storage medium |
| CN114151927A (en) * | 2021-11-26 | 2022-03-08 | 宁波奥克斯电气股份有限公司 | Anti-frosting control method and device and air conditioner |
| CN114413415A (en) * | 2021-12-15 | 2022-04-29 | 珠海格力电器股份有限公司 | Air conditioner defrosting control method and controller thereof |
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| CN114608145A (en) * | 2022-02-24 | 2022-06-10 | 青岛海尔空调器有限总公司 | Control method and control device for air conditioner, air conditioner and storage medium |
| CN114719398A (en) * | 2022-04-01 | 2022-07-08 | 北京小米移动软件有限公司 | Defrosting device, heating apparatus, automatic defrosting control method, and storage medium |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1548864A (en) * | 2003-05-20 | 2004-11-24 | 乐金电子(天津)电器有限公司 | Defrosting control method for air conditioner |
| KR100484968B1 (en) * | 2002-07-31 | 2005-04-25 | 위니아만도 주식회사 | Method for defrosting operation of air-conditioner used both cooler and heater |
| CN101187517A (en) * | 2006-11-17 | 2008-05-28 | 海尔集团公司 | Air-conditioner defrosting method |
| CN106765673A (en) * | 2016-11-30 | 2017-05-31 | 美的集团武汉制冷设备有限公司 | Heat pump and its defrosting control method |
| CN107270420A (en) * | 2017-07-24 | 2017-10-20 | 美的集团武汉制冷设备有限公司 | The control method of air conditioner, the control device of air conditioner and air conditioner |
| CN107702293A (en) * | 2017-09-20 | 2018-02-16 | 青岛海尔空调电子有限公司 | Air conditioner defrosting control method |
| CN109084434A (en) * | 2018-08-29 | 2018-12-25 | 珠海格力电器股份有限公司 | A kind of frequency conversion heat pump air conditioner and its defrosting control method |
| CN208671271U (en) * | 2018-06-25 | 2019-03-29 | 北京汉能光伏投资有限公司 | Defroster and air-conditioning |
-
2019
- 2019-08-02 CN CN201910713138.9A patent/CN110470011A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100484968B1 (en) * | 2002-07-31 | 2005-04-25 | 위니아만도 주식회사 | Method for defrosting operation of air-conditioner used both cooler and heater |
| CN1548864A (en) * | 2003-05-20 | 2004-11-24 | 乐金电子(天津)电器有限公司 | Defrosting control method for air conditioner |
| CN101187517A (en) * | 2006-11-17 | 2008-05-28 | 海尔集团公司 | Air-conditioner defrosting method |
| CN106765673A (en) * | 2016-11-30 | 2017-05-31 | 美的集团武汉制冷设备有限公司 | Heat pump and its defrosting control method |
| CN107270420A (en) * | 2017-07-24 | 2017-10-20 | 美的集团武汉制冷设备有限公司 | The control method of air conditioner, the control device of air conditioner and air conditioner |
| CN107702293A (en) * | 2017-09-20 | 2018-02-16 | 青岛海尔空调电子有限公司 | Air conditioner defrosting control method |
| CN208671271U (en) * | 2018-06-25 | 2019-03-29 | 北京汉能光伏投资有限公司 | Defroster and air-conditioning |
| CN109084434A (en) * | 2018-08-29 | 2018-12-25 | 珠海格力电器股份有限公司 | A kind of frequency conversion heat pump air conditioner and its defrosting control method |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536674A (en) * | 2020-05-13 | 2020-08-14 | 广东美的制冷设备有限公司 | High-temperature sterilization control method for air conditioner, air conditioner and computer storage medium |
| CN113847741A (en) * | 2021-08-30 | 2021-12-28 | 青岛海尔空调电子有限公司 | Method and device for defrosting water heater, water heater and storage medium |
| CN113819578B (en) * | 2021-10-25 | 2022-10-28 | 宁波奥克斯电气股份有限公司 | Air conditioner control method and air conditioner |
| CN113819578A (en) * | 2021-10-25 | 2021-12-21 | 宁波奥克斯电气股份有限公司 | Air conditioner control method and air conditioner |
| CN114151927A (en) * | 2021-11-26 | 2022-03-08 | 宁波奥克斯电气股份有限公司 | Anti-frosting control method and device and air conditioner |
| CN114151927B (en) * | 2021-11-26 | 2023-02-10 | 宁波奥克斯电气股份有限公司 | Anti-frosting control method and device and air conditioner |
| CN114413415B (en) * | 2021-12-15 | 2023-05-12 | 珠海格力电器股份有限公司 | Defrosting control method of air conditioner and controller thereof |
| CN114413415A (en) * | 2021-12-15 | 2022-04-29 | 珠海格力电器股份有限公司 | Air conditioner defrosting control method and controller thereof |
| CN114484769A (en) * | 2022-02-17 | 2022-05-13 | 安徽奥克斯智能电气有限公司 | Air conditioner control method and device and air conditioner |
| CN114484769B (en) * | 2022-02-17 | 2023-08-11 | 安徽奥克斯智能电气有限公司 | Air conditioner control method and device and air conditioner |
| CN114608145A (en) * | 2022-02-24 | 2022-06-10 | 青岛海尔空调器有限总公司 | Control method and control device for air conditioner, air conditioner and storage medium |
| CN114608145B (en) * | 2022-02-24 | 2024-02-20 | 青岛海尔空调器有限总公司 | Control method and control device for air conditioner, air conditioner and storage medium |
| CN114484745A (en) * | 2022-03-01 | 2022-05-13 | 青岛海尔空调器有限总公司 | Control method and control system for defrosting of air conditioner, electronic equipment and storage medium |
| CN114484745B (en) * | 2022-03-01 | 2024-01-16 | 青岛海尔空调器有限总公司 | Control method and control system for defrosting of air conditioner, electronic equipment and storage medium |
| CN114738972A (en) * | 2022-03-28 | 2022-07-12 | 青岛海尔空调器有限总公司 | Control method and device of air conditioner and air conditioner |
| CN114719398A (en) * | 2022-04-01 | 2022-07-08 | 北京小米移动软件有限公司 | Defrosting device, heating apparatus, automatic defrosting control method, and storage medium |
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