CN110469986A - For the control method of air-conditioner defrosting, device and air-conditioning - Google Patents
For the control method of air-conditioner defrosting, device and air-conditioning Download PDFInfo
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- CN110469986A CN110469986A CN201910683225.4A CN201910683225A CN110469986A CN 110469986 A CN110469986 A CN 110469986A CN 201910683225 A CN201910683225 A CN 201910683225A CN 110469986 A CN110469986 A CN 110469986A
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- 238000010257 thawing Methods 0.000 title claims abstract description 100
- 238000004378 air conditioning Methods 0.000 title claims abstract description 96
- 238000000034 method Methods 0.000 title claims abstract description 60
- 238000010438 heat treatment Methods 0.000 claims abstract description 145
- 239000003507 refrigerant Substances 0.000 claims abstract description 130
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 230000008569 process Effects 0.000 claims abstract description 13
- 230000000875 corresponding effect Effects 0.000 claims description 29
- 230000002596 correlated effect Effects 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 238000009833 condensation Methods 0.000 abstract description 5
- 230000005494 condensation Effects 0.000 abstract description 5
- 230000002411 adverse Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 13
- 230000006870 function Effects 0.000 description 11
- 238000004891 communication Methods 0.000 description 9
- 230000008859 change Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 238000004590 computer program Methods 0.000 description 5
- 230000006698 induction Effects 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000007791 dehumidification Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000001112 coagulating effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000009916 joint effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
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- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
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- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000009790 rate-determining step (RDS) Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
-
- 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
- F25B47/022—Defrosting cycles hot gas defrosting
- F25B47/025—Defrosting cycles hot gas defrosting by reversing the cycle
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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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
- F25D21/08—Removing frost by electric heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
This application involves air-conditioner defrosting technical fields, disclose a kind of control method for air-conditioner defrosting.Control method includes: to obtain outdoor environment temperature, outdoor coil temperature and refrigerant in the operation of air conditioner heating mode processes and go out liquid temperature；After going out liquid temperature according to the outdoor environment temperature, the outdoor coil temperature and the refrigerant and determining satisfaction defrosting entry condition, control enters reverse cycle defrosting mode and executes the first heating operation of the refrigerant to the refrigerant outlet tube road for the outdoor heat exchanger for flowing through the air-conditioning.The control method can go out the judgement whether liquid temperature meets defrosting entry condition to air-conditioning according to outdoor environment temperature, outdoor coil temperature and refrigerant, effectively improve the control precision to control air-conditioner defrosting；And reverse cycle defrosting mode and by way of heating to the refrigerant for flowing through refrigerant outlet tube road, accelerate 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 it is a kind of for the control method of air-conditioner defrosting, device and
Air-conditioning.
Background technique
Currently, the mainstream model of air-conditioning is mostly the heat exchange function for having refrigeration refrigeration 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:
More or less all can in the process as shown in above-described embodiment to the defrosting of the Defrost mode of outdoor heat exchanger
Constituting on the normal heating performance of air-conditioning influences, therefore air-conditioning will do it defrosting judgement before defrosting, and then be tied according to judgement
Whether fruit control air-conditioning defrosts；In the related technology generally by numeric ratio between outdoor environment temperature and frost point temperature
Compared with mode carry out defrosting judgement, due to outdoor heat exchanger frosting device can simultaneously by outdoor environment and self-operating state
The influence of equal many factors, therefore above-mentioned defrosting judgment mode is excessively rough, it is difficult to meet air-conditioning to accurate triggering defrosting movement
Needs.
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 provide it is a kind of for the control method of air-conditioner defrosting, device and air-conditioning, to solve related skill
Air-conditioner defrosting judges the lower technical problem of accuracy in art.
In some embodiments, the control method for air-conditioner defrosting includes:
In the operation of air conditioner heating mode processes, obtains outdoor environment temperature, outdoor coil temperature and refrigerant and go out liquid
Temperature；
Satisfaction defrosting is determined going out liquid temperature according to the outdoor environment temperature, the outdoor coil temperature and the refrigerant
After entry condition, control, which enters reverse cycle defrosting mode and executes, goes out liquid to the refrigerant for the outdoor heat exchanger for flowing through the air-conditioning
First heating operation of the refrigerant of pipeline.
In some embodiments, the control device for air-conditioner defrosting includes:
Processor and the memory for being stored with program instruction, the processor is configured to executing described program instruction
When, execute such as above-mentioned some control methods as described in the examples for air-conditioner defrosting.In some embodiments, the sky
It adjusts, comprising:
Refrigerant circulation circuit is connected by outdoor heat exchanger, indoor heat exchanger, throttling set and compressor by refrigerant pipeline
It constitutes；
Heating device is set to the outdoor heat exchanger on the refrigerant outlet tube road under the heating mode, is configured
To be heated to the refrigerant for flowing through refrigerant outlet tube road；
Such as above-mentioned some control devices as described in the examples for air-conditioner defrosting, it is electrically connected with the heating device.
The embodiment of the present disclosure provide for the control method of air-conditioner defrosting, device and air-conditioning, following technology may be implemented
Effect:
The control method for air-conditioner defrosting that the embodiment of the present disclosure provides can be according to the outdoor environment temperature acquired
Degree, outdoor coil temperature and refrigerant go out the judgement whether these parametric synthesis of liquid temperature meet defrosting entry condition to air-conditioning,
So as to effectively improve the control precision to control air-conditioner defrosting；And utilize high temperature refrigerant to room by reverse cycle defrosting mode
External heat exchanger defrosting, and further increased under inverse circulation pattern by way of being heated to the refrigerant for flowing through refrigerant outlet tube road
The refrigerant temperature for flowing into outdoor heat exchanger can effectively improve the defrosting efficiency to outdoor heat exchanger, accelerate 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 another embodiment of the 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 air-conditioning 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.
As shown in Figure 1, providing a kind of control method for air-conditioner defrosting in the embodiment of the present disclosure, can be used for solving sky
Outdoor heat exchanger when running under sleet or low temperature severe cold condition is adjusted frosting occur, influence the problem of air-conditioning normal heating performance；
In embodiment, the main process flow steps of the control method include:
S101, in operation of air conditioner heating mode processes, obtain outdoor environment temperature, outdoor coil temperature and refrigerant go out liquid
Temperature；
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.
When air-conditioning is with other such as refrigeration modes, the operation of dehumidification mode isotype, the room as corresponding to these modes
The problem of outer operating condition is generally not in air-conditioner outdoor unit frosting, thus it is optional, it is run in air-conditioning with other non-heating modes
When, the corresponding flow control process of the control method does not enable, and misses to avoid air-conditioning in operation refrigeration mode, dehumidification mode isotype
Triggering is acted for the defrosting of outdoor heat exchanger, is influenced air-conditioning and is normally freezed or dehumidification work process.
In an alternative embodiment, the outdoor unit of air-conditioning is provided with one first temperature sensor, which passes
Sensor can be used for detecting the real time temperature of outdoor environment locating for outdoor unit；Therefore, acquired outdoor ring in step s101
Border temperature can be the real time temperature by outdoor environment detected by first temperature sensor；
Another optional, air-conditioning can carry out data communication by home network etc. and external server；Here, external clothes
Business device includes the server for being stored with the data such as the corresponding environment temperature in one or more areas, which includes
Area belonging to the air-conditioning；Therefore, in step s101, air-conditioning can be by carrying out data communication with the server, from the clothes
Business device obtains the temperature of air-conditioning their location, and as outdoor environment temperature.
In the embodiments of the present disclosure, outdoor environment temperature is the external temperature for directly influencing the case temperature of outdoor heat exchanger
Degree factor；Frost is condensed in the housing outer surface of outdoor heat exchanger, and the height of outdoor environment temperature, which can change, to be in direct contact with it
Outdoor heat exchanger housing outer surface temperature change, and then influence the frosting journey of the housing outer surface of outdoor heat exchanger
Degree；Therefore the outdoor environment temperature that gets can be used as measure reference that outdoor environment influences outdoor heat exchanger frosting because
Element.
In an alternative embodiment, one second temperature is provided at the coil pipe position of the outdoor heat exchanger of air-conditioner outdoor unit
Sensor is spent, which can be used for detecting the real time temperature of its coil pipe position；Therefore, in step s101
Acquired outdoor coil temperature can be the real time temperature by coil pipe position detected by the second temperature sensor.
In the embodiments of the present disclosure, the temperature change of the coil pipe position of outdoor heat exchanger is can intuitively to reflect in outside
Outdoor environment temperature and internal refrigerant temperature joint effect under outdoor heat exchanger refrigerant pipeline temperature variations, separately
It is outside typically also the pipeline position that outdoor heat exchanger is easy to appear frosting problem；Therefore the outdoor coil temperature got can be made
To measure the reference factor that air-conditioning inside and outside influences the frosting that outdoor heat exchanger generates jointly.
In an alternative embodiment, the outdoor unit of air-conditioning is additionally provided with a third temperature sensor, the third temperature
Sensor 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, in step S101
In acquired refrigerant outlet tube road can be the real time temperature of the refrigerant detected by the third temperature sensor；
Here, when refrigerant outlet tube road is run for air-conditioning with heating mode refrigerant outflow outdoor heat exchanger via pipe
Road.
In the embodiments of the present disclosure, the temperature for flowing out the refrigerant of outdoor heat exchanger is to can reflect out outdoor heat exchanger and room
The heat exchanger effectiveness of external environment, and heat exchanger effectiveness then will receive the influence of the frosting degree of outdoor heat exchanger；Here, in air-conditioning
Frosting degree is lower, in the case where frost thinner thickness, and influence of the frost to heat exchange is smaller, cold after flowing through outdoor heat exchanger
The heat that matchmaker is absorbed is more；And in the case where air-conditioning frosting degree is higher, frost thickness is thicker, shadow of the frost to heat exchange
Sound is larger, and the heat that the refrigerant after flowing through outdoor heat exchanger is absorbed is less.Therefore the refrigerant that acquires go out liquid temperature can be with
Reference factor as the frosting degree for measuring air-conditioning heat exchanger.
S102, the determining satisfaction defrosting of liquid temperature is being gone out into item according to outdoor environment temperature, outdoor coil temperature and refrigerant
After part, control enters reverse cycle defrosting mode and executes the refrigerant to the refrigerant outlet tube road for the outdoor heat exchanger for flowing through air-conditioning
The first heating operation.
Here, air-conditioning presets a defrosting entry condition, can be according to acquiring when air-conditioning is run with heating mode
Parameter judge whether air-conditioning meets the defrosting entry condition；If it is satisfied, then air-conditioning need to outdoor heat exchanger into
Row defrosting；If conditions are not met, then air-conditioning is without defrosting to outdoor heat exchanger.
In the embodiments of the present disclosure, air-conditioning is according to outdoor environment temperature acquired in step S101, outdoor coil pipe used temperature
Degree and refrigerant go out these parameters of liquid temperature to whether meet defrosting entry condition judge；Among these, outdoor environment temperature
It is able to reflect the temperature regime of the ambient enviroment locating for air-conditioner outdoor unit, outdoor coil temperature more sensitive can reflect
The temperature variations of the refrigerant pipeline of outdoor heat exchanger, and it is as the reflection current frosting of outdoor heat exchanger that refrigerant, which goes out liquid temperature,
The reference factor of degree；In this way, the embodiment of the present disclosure combines above-mentioned many factors parameter jointly to air-conditioning with the presence or absence of frosting
Problem is judged, the judgement precision to air-conditioner defrosting can be greatly improved, so that the defrosting operation of air-conditioning triggering can
It is more in line with the real-time frosting situation of air-conditioning.
In an alternative embodiment, the defrosting entry condition in step S102 includes:
Tao≤ T1, Te≤ T2, Temax-Te>=△ T1, and TLiquid out-Te≤△T2；
Wherein, TaoFor outdoor environment temperature, TeFor outdoor coil temperature, TemaxFor what is recorded after this booting operation of air-conditioning
Outdoor coil temperature maximum value, TLiquid outGo out liquid temperature for refrigerant, T1 is preset outer circumstance temperature threshold value, and T2 is preset external disk temperature threshold
Value, △ T1 are preset first temperature difference threshold, and △ T2 is preset second temperature difference threshold.
In the defrosting entry condition, the height of outdoor environment temperature, which is able to reflect ambient enviroment locating for outdoor heat exchanger, is
It is no to be capable of forming the temperature condition for making outdoor heat exchanger lead to the problem of frosting；Optionally, preset outer circumstance temperature threshold value is that solidifying frost faces
Boundary's temperature, then when outdoor environment temperature is less than or equal to solidifying white critical-temperature, the temperature of outdoor environment locating for outdoor heat exchanger
Degree, which has reached, makes outdoor heat exchanger be likely to occur the temperature condition for coagulating frost.
And whether the pipeline that the height of outdoor coil temperature is then able to reflect room heat exchanger reaches the temperature for being capable of forming frost
Degree condition；Optionally, preset external disk temperature threshold value is then to work as outdoor coil temperature less than or equal to the numerical value of solidifying white critical-temperature
When less than the external disk temperature threshold value, the pipelines such as outdoor heat exchanger itself coil pipe, which have reached, makes outdoor heat exchanger be likely to occur the temperature for coagulating frost
Degree condition.
In addition, the temperature gap between outdoor coil temperature maximum value and outdoor coil temperature can embody inside and outside air-conditioning
The situation of change of outdoor coil pipe used own temperature under environment joint effect；In general, outdoor environment operating condition is good, air-conditioning heating just
Often when operation, therefore, outdoor coil temperature is limited compared to the variable quantity of outdoor coil temperature maximum value；And when outdoor environment becomes
When to be easy to cause outdoor heat exchanger to coagulate the bad working environments of frost, then influenced by outdoor environment temperature variation, outdoor coil temperature
Decline is very fast, so that it can also generate biggish fluctuation compared to the variable quantity of outdoor coil temperature maximum value；In this way, this
One of defrosting entry condition of application is to carry out defrosting judgement according to outdoor coil temperature under operating condition outside different chamber.
In addition, when air-conditioning has frosting, due to the barrier of frost layer, between outdoor heat exchanger and outdoor environment
Heat exchanger effectiveness reduce, at this time refrigerant temperature be influence outdoor coil temperature principal element, therefore when refrigerant go out liquid temperature with
When temperature gap between outdoor coil temperature is smaller, then illustrate that there may be frosting problems for outdoor heat exchanger of air conditioner at this time.
Therefore, the defrosting entry condition in the embodiment of the present disclosure has comprehensively considered parameter under different working conditions and has changed outdoor
The appearance for the problems such as frosting of hot device influences, and can effectively improve the judgement precision to air-conditioner defrosting, reduces erroneous judgement, false triggering.
In the embodiments of the present disclosure, when according to outdoor environment temperature, outdoor coil temperature and refrigerant going out liquid temperature determine
After meeting defrosting entry condition, the defrosting of air-conditioning operation includes that control enters reverse cycle defrosting mode and executes to flowing through air-conditioning
Outdoor heat exchanger refrigerant outlet tube road refrigerant the first heating operation.
Wherein, reverse cycle defrosting mode includes that the refrigerant flow direction of control air-conditioning is switched to the flow direction opposite with heating mode；
Under this kind of model process, the high temperature refrigerant of compressor discharge is first to flow through outdoor heat exchanger, so as to utilize high temperature refrigerant
Heat realize to the defrosting operation of outdoor heat exchanger.
Meanwhile under inverse circulation pattern, the refrigerant outlet tube road under heating mode is substantially to become " refrigerant inlet tube
Road ", i.e., at this time refrigerant via under refrigeration mode refrigerant outlet tube road flow into outdoor heat exchanger；Therefore, by flowing through refrigerant
The heating of the refrigerant on outlet tube road can be further improved the refrigerant temperature for flowing into indoor heat exchanger, actual so as to enhance
Defrosting effect.
Optionally, it is provided with a heating device at the refrigerant outlet tube road of outdoor heat exchanger, which is arranged to
Controllably the refrigerant for flowing through refrigerant outlet tube road is heated.
Therefore in step s 102, the determination of liquid temperature is being gone out completely according to outdoor environment temperature, outdoor coil temperature and refrigerant
After foot defrosting entry condition, it can control operation reverse cycle defrosting mode and open the heating device the first heating operation of execution；
And the case where being unsatisfactory for defrosting entry condition is determined going out liquid temperature according to outdoor environment temperature, outdoor coil temperature and refrigerant
Under, then it keeps heating mode constant and keeps the closed state of the heating device.
In one embodiment, heating device is electromagnetic heater, and electromagnetic heater utilizes electromagnetic induction heating
Principle heats refrigerant pipeline, and then the refrigerant for flowing through refrigerant pipeline is conducted heat to using refrigerant pipeline, cold to reach heating
The purpose of matchmaker.
Here, the corresponding refrigerant pipe section heated of electromagnetic heater is the pipeline section of the metal materials such as copper or irony,
Electromagnetic heater is mainly made of induction coil and power supply module, and induction coil is wound in above-mentioned refrigerant pipeline here
Section, power supply module can provide alternating current for induction coil；When induction coil is powered, the alternating current of induction coil is flowed through
The alternating magnetic field for passing through refrigerant pipe section is generated, which can make refrigerant inner tube segment generate vortex, so as to rely on
The energy of these vortex plays the role of heat temperature raising.
It is filled it should be understood that the type for the heating device that the application is used to heat refrigerant is not limited to above-mentioned electromagnetic heating
It sets, the other types of heating device that can be used in directly or indirectly heating refrigerant can also be using the application's in the related technology
Technical solution, and cover within the scope of protection of this application.
In an alternative embodiment, in step S102 in first heating operation of the control to refrigerant outlet tube road,
The heating operation of the first heating operation can be determined according to temperature gap, and first heating is then executed according to heating operation and is grasped
Make.
Among these, temperature gap includes: the first temperature difference between outdoor coil temperature maximum value and outdoor coil temperature
Value, or, refrigerant goes out the second temperature difference between liquid temperature and outdoor coil temperature；Heating parameters include the first heating operation
The rate of heat addition and/or heating duration.
In technology contents above, the first temperature gap and second temperature difference are also the entry condition that hereinbefore defrosts
One of sub- condition；It, can be according to the first temperature gap and second when therefore determining satisfaction defrosting entry condition in step s 102
Temperature gap speculates influence of the outdoor heat exchanger frosting to air-conditioning heating performance, and then is selected according to the Different Effects of heating performance
The rate of heat addition and heating duration to the refrigerant for flowing through refrigerant outlet tube road, to meet the heating performance needs of air-conditioning.
For example, larger to air-conditioning heating performance degradation, then setting is to refrigerant when the frosting degree of outdoor heat exchanger is higher
The rate of heat addition it is very fast, to improve the heat temperature raising speed to the refrigerant of outflow, suction temperature requirement can be met as early as possible；
And setting is longer to the heating duration of refrigerant, stream can be heated for a long time under outdoor heat exchanger frosting serious situation
Out outdoor heat exchanger, flow back to the refrigerant of compressor；Conversely, then setting is to refrigerant when the frosting degree of outdoor heat exchanger is lower
The rate of heat addition it is lower, heating duration it is shorter, with reduce first heater operation power consumption, reduce the use cost of air-conditioning.
Optionally, the rate of heat addition to the refrigerant for flowing through refrigerant outlet tube road is determined according to temperature gap, comprising: according to the
One temperature gap obtains corresponding first rate of heat addition from first rate incidence relation, to carry out according to first rate of heat addition
Heating.
It here, include that one or more first temperature gaps are corresponding with first rate of heat addition in first rate incidence relation
Relationship.Here, the corresponding relationship of a kind of optional first temperature gap and first rate of heat addition is shown in table 1, such as following table institute
Show,
Table 1
In first rate incidence relation, first rate of heat addition and the first temperature gap are to be positively correlated.That is the first temperature gap
Bigger, then first rate of heat addition is higher；And the first temperature gap is smaller, then first rate of heat addition is lower.
It therefore, can first basis when in executing step S102 to the heating operation for the refrigerant for flowing through refrigerant outlet tube road
The first rate incidence relation determines corresponding first rate of heat addition of the first temperature gap, is then carried out according to first rate of heat addition
Heating.
It is another optional, the rate of heat addition to the refrigerant for flowing through refrigerant outlet tube road is determined according to temperature gap, comprising: root
According to second temperature difference, corresponding second rate of heat addition is obtained from the second rate incidence relation, according to second rate of heat addition
It is heated.
It here, include that one or more second temperature differences are corresponding with second rate of heat addition in the second rate incidence relation
Relationship.Here, the corresponding relationship of a kind of optional second temperature difference and second rate of heat addition is shown in table 2, such as following table institute
Show,
| Second temperature difference (unit: DEG C) | Second rate of heat addition (unit: DEG C/min) |
| B1 < TLiquid out-Te≤b2 | v21 |
| B2 < TLiquid out-Te≤b3 | v22 |
| B3 < TLiquid out-Te | v23 |
Table 2
In second rate incidence relation, second rate of heat addition and second temperature difference are to be positively correlated.That is second temperature difference
Bigger, then second rate of heat addition is higher；And second temperature difference is smaller, then second rate of heat addition is lower.
It therefore, can first basis when in executing step S102 to the heating operation for the refrigerant for flowing through refrigerant outlet tube road
The second rate incidence relation determines corresponding second rate of heat addition of second temperature difference, is then carried out according to second rate of heat addition
Heating.
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 heating
Rate.
Optionally, the rate incidence relation specifically selected can also be determined according to the heating needs of active user, for example, In
When the heating needs of active user are lower, then first rate incidence relation is selected, mainly considers the first temperature gap at this time
Influence of the outdoor units such as the corresponding outdoor coil temperature parameter to defrosting effect；And the heating needs in active user are higher
When, then the second rate incidence relation is selected, is mainly existed at this time in view of being influenced caused refrigerant by outdoor heat exchanger frosting
Temperature height after outdoor heat exchanger heat absorption, to guarantee heating performance.
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 this way, air-conditioning can not only be timely triggered in the embodiment of the present disclosure according to the practical frosting situation of air-conditioning for outdoor
The defrosting of heat exchanger operates, while the heating that user can also be taken into account when executing the defrosting heated to refrigerant and operating needs
It asks, to fully ensure that air-conditioning during defrosting to the control requirement of users'comfort.
It similarly, in some alternative embodiments, can also be according to the first temperature gap, from the first duration incidence relation
Corresponding first heating duration is obtained, to be heated according to the first heating duration.
Here, in the first duration incidence relation, the first heating duration and the first temperature gap are to be positively correlated.
Alternatively, obtaining corresponding second heating duration, from the second duration incidence relation according to second temperature difference to press
It is heated according to the second heating duration.
Here, in the second duration incidence relation, the second heating duration and second temperature difference are to be positively correlated.
In the above-described embodiments, it is referred to according to the mode that temperature gap obtains heating duration above-mentioned according to temperature difference
Value obtains the control flow of the rate of heat addition, and therefore not to repeat here.
In some alternative embodiments, in order to the heating performance of air-conditioning, this Shen can be promoted as early as possible when air-conditioning is switched on
Please control method the step of further include: after air-conditioning is switched on heating mode, control execute to the outdoor heat exchanger for flowing through air-conditioning
Refrigerant outlet tube road refrigerant the second heating operation.
At this point, refrigerant flows out outdoor heat exchanger via refrigerant outlet tube road, and it is back to compressor, therefore, the second heating
Operation can be improved the suction temperature for the refrigerant for being back to compressor, to improve air-conditioning in the heating performance of start-up phase.
Optionally, the application is after control executes the second heating operation, further includes: obtains the return air temperature of the compressor of air-conditioning
Degree；When the suction temperature of compressor meets preset temperature condition, control stops the second heating operation.
In the present embodiment, the air return end of compressor of air conditioner is additionally provided with a temperature sensor, and the temperature sensor is available
Refrigerant temperature in detection stream cooled via return air end；Therefore the refrigerant temperature that real-time detection arrives can be obtained by the temperature sensor,
And as judging the suction temperature of temperature condition.
In an alternative embodiment, temperature condition includes: that suction temperature is greater than or equal to preset suction temperature threshold
Value.
Here, in the case where suction temperature is greater than or equal to preset suction temperature threshold value, illustrate the system of air-conditioning at this time
Hot property can control can satisfy current heating needs and stop the second heating operation, guarantee that air-conditioning heating need in this way
In the case where asking, it is possible to reduce the power consumption of the second heating operation；And it is less than the feelings of preset suction temperature threshold value in suction temperature
Under condition, illustrate that the heating performance of air-conditioning at this time not yet meets current heating needs, therefore keep the second heating operation constant.
Fig. 2 is the flow diagram for the control method for air-conditioner defrosting that the another embodiment of the disclosure provides.
As shown in Fig. 2, the embodiment of the present disclosure provides another control method for air-conditioner defrosting, rate-determining steps master
Include:
S201, air-conditioning booting, are run with heating mode；
In the present embodiment, air-conditioning general user under the conditions of low temperature severe cold weather sets heating mode and opens as present mode
Machine operation.
S202, control open the second heating operation of heating device；
In the embodiments of the present disclosure, heating device is set to the refrigerant outlet tube road of outdoor heat exchanger under heating mode,
It is configured as heating the refrigerant for flowing through the refrigerant outlet tube road.
Optionally, air-conditioning is preset with the configuration informations such as the rate of heat addition of the second heating operation, therefore in step S202, empty
Tune can call preset configuration information, and control according to configuration information and execute the second heating operation；
S203, the suction temperature for obtaining compressor；
S204, judge whether TReturn-air≥TReturn-air threshold value, if so, S205 is thened follow the steps, if it is not, then returning to step
S203；
S205, stop executing the second heating operation；
S206, detection outdoor environment temperature Tao, outdoor coil temperature TeAnd refrigerant goes out liquid temperature TLiquid out；
S207, judge whether Tao≤ T1, Te≤ T2, Temax-Te>=△ T1, and TLiquid out-Te≤ △ T2, if it is, executing
Step S208, if it is not, then returning to step S206；
In the embodiments of the present disclosure, Tao≤ T1, Te≤ T2, Temax-Te>=△ T1, and TLiquid out-Te≤ △ T2 collectively forms pre-
If defrosting entry condition.
Here, after air-conditioning booting operation, temperature sensor real-time detection outdoor coil temperature, and will test multiple
Outdoor coil temperature is saved as historical data；Therefore when executing the judgment step of step S207, history can be transferred
Multiple outdoor coil temperatures in data, and outdoor coil temperature maximum of T is determined by comparingemax；
If meeting the defrosting entry condition, illustrate that outdoor heat exchanger of air conditioner has frosting at this time；And if not
Meet the defrosting entry condition, then illustrates that frosting problem is not present in outdoor heat exchanger of air conditioner at this time.
S208, according to Temax-Te, corresponding first rate of heat addition is obtained from first rate incidence relation；
S209, according to Temax-Te, corresponding first heating duration is obtained from the first duration incidence relation；
S210, control enter reverse cycle defrosting mode, and open and add according to first rate of heat addition and the first heating duration
Thermal；
Optionally, heating device is electromagnetic heater, therefore can be by changing electricity to the adjusting of first rate of heat addition
The parameters such as the operating current or voltage of magnetic heating device are realized.
The control method for air-conditioner defrosting that the embodiment of the present disclosure provides can be according to the outdoor environment temperature acquired
Degree, outdoor coil temperature and refrigerant go out the judgement whether parametric synthesis such as liquid temperature meet defrosting entry condition to air-conditioning, thus
It can effectively improve the control precision to control air-conditioner defrosting；And outdoor is changed using high temperature refrigerant by reverse cycle defrosting mode
Hot device defrosting, and further increased by way of being heated to the refrigerant for flowing through refrigerant outlet tube road and flowed under inverse circulation pattern
The refrigerant temperature of outdoor heat exchanger can effectively improve the defrosting efficiency to outdoor heat exchanger, accelerate to reduce frost condensation to sky
Adjust the adverse effect of itself heating performance.
Fig. 3 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 3, comprising:
Processor (processor) 300 and memory (memory) 301 can also include communication interface
(Communication Interface) 302 and bus 303.Wherein, processor 300, communication interface 302, memory 301 can
To complete mutual communication by bus 303.Communication interface 302 can be used for information transmission.Processor 300 can be called and be deposited
Logical order in reservoir 301, to execute the control method for air-conditioner defrosting of above-described embodiment.
In addition, the logical order in above-mentioned memory 301 can be realized by way of SFU software functional unit and conduct
Independent product when selling or using, can store in a computer readable storage medium.
Memory 301 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 300 is stored in memory 301 by operation
In program instruction/module, thereby executing functional application and data processing, i.e., in realization above method embodiment for sky
Adjust the control method of defrosting.
Memory 301 may include storing program area and storage data area, wherein storing program area can storage program area,
Application program needed at least one function；Storage data area, which can be stored, uses created data etc. according to terminal device.
In addition, memory 301 may include high-speed random access memory, it can also include nonvolatile memory.
Fig. 4 is the structural schematic diagram for the air-conditioning that the embodiment of the present disclosure provides.
As shown in figure 4, disclosure implementation additionally provides a kind of air-conditioning, comprising:
Refrigerant circulation circuit passes through refrigerant by outdoor heat exchanger 41, indoor heat exchanger 42, throttling set 43 and compressor 44
Piping connection is constituted；
Heating device 45 is set to the refrigerant outlet tube road of outdoor heat exchanger 41 in a heating mode, is configured as pair
The refrigerant for flowing through refrigerant outlet tube road is heated；
For the control device 46 of air-conditioner defrosting, it is electrically connected with heating device 45.Here, the control for being used for air-conditioner defrosting
Device is control device shown in embodiment above.
Air-conditioning in the embodiment of the present disclosure can be detected accurately and judge that air-conditioning whether there is frosting problem, and in sky
In the case that tune has frosting, corresponding defrosting operation is carried out using above-mentioned control device and heating device, to reduce
The frost amount condensed on outdoor heat exchanger of air conditioner guarantees that air-conditioning can be normally to indoor environment system under the conditions of low temperature harsh climate
Heat promotes the usage experience of user.
The embodiment of the present disclosure additionally provides a kind of computer readable storage medium, is stored with computer executable instructions, institute
It states computer executable instructions and is arranged to carry out the above-mentioned method for air-conditioner defrosting.
The embodiment of the present disclosure additionally provides a kind of computer program product, and the computer program product includes being stored in meter
Computer program on calculation machine readable storage medium storing program for executing, the computer program include program instruction, when described program instruction is counted
When calculation machine executes, the computer is made to execute the above-mentioned 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 one ... ", it is not excluded that
There is also other identical elements in process, method or equipment including the element.Herein, each embodiment emphasis is said
Bright can be the difference from other embodiments, and the same or similar parts in each embodiment can refer to each other.For
For method, product disclosed in embodiment etc., if it is corresponding with method part disclosed in embodiment, related place can
Referring 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 operation of air conditioner heating mode processes, obtains outdoor environment temperature, outdoor coil temperature and refrigerant and go out liquid temperature；
Determine that meeting defrosting enters going out liquid temperature according to the outdoor environment temperature, the outdoor coil temperature and the refrigerant
After condition, control enters reverse cycle defrosting mode and executes the refrigerant outlet tube road to the outdoor heat exchanger for flowing through the air-conditioning
Refrigerant the first heating operation.
2. control method according to claim 1, which is characterized in that the defrosting entry condition includes:
Tao≤ T1, Te≤ T2, Temax-Te>=△ T1, and TLiquid out-Te≤△T2；
Wherein, the TaoFor the outdoor environment temperature, the TeFor the outdoor coil temperature, TemaxFor the air-conditioning this
The outdoor coil temperature maximum value recorded after booting operation, the TLiquid outGo out liquid temperature for the refrigerant, T1 is preset outer circumstance temperature
Threshold value, T2 are preset external disk temperature threshold value, and △ T1 is preset first temperature difference threshold, and △ T2 is preset second temperature difference threshold.
3. control method according to claim 2, which is characterized in that the heating parameters of first heating operation are according to temperature
Difference is spent to determine；
Wherein, the temperature gap includes: first between the outdoor coil temperature maximum value and the outdoor coil temperature
Temperature gap, or, the refrigerant goes out the second temperature difference between liquid temperature and the outdoor coil temperature；
The heating parameters include the rate of heat addition and/or heating duration of first heating operation.
4. control method according to claim 3, which is characterized in that determine first heating operation according to temperature gap
The rate of heat addition, comprising:
According to first temperature gap, corresponding first rate of heat addition is obtained from first rate incidence relation, according to institute
It states first rate of heat addition and executes the first heating operation；Or,
According to the second temperature difference, corresponding second rate of heat addition is obtained from the second rate incidence relation, according to institute
It states second rate of heat addition and executes the first heating operation.
5. control method according to claim 3, which is characterized in that determine first heating operation according to temperature gap
The heating duration, comprising:
According to first temperature gap, corresponding first heating duration is obtained from the first duration incidence relation, according to institute
It states the first heating duration and executes the first heating operation；Or,
According to the second temperature difference, corresponding second heating duration is obtained from the second duration incidence relation, according to institute
It states the second heating duration and executes the first heating operation.
6. control method according to claim 3, which is characterized in that the heating parameters of first heating operation with it is described
First temperature gap is to be positively correlated；
The heating parameters of first heating operation and the second temperature difference are to be positively correlated.
7. control method according to any one of claims 1 to 6, which is characterized in that further include:
After the air-conditioning is with heating mode booting, control executes the refrigerant for the outdoor heat exchanger for flowing through the air-conditioning
Second heating operation of the refrigerant of liquid pipeline.
8. control method according to claim 7, which is characterized in that execute the second heating behaviour controlling the heating device
After work, further includes:
Obtain the suction temperature of the compressor of the air-conditioning；
When the suction temperature of the compressor meets preset temperature condition, control stops second heating operation；
Wherein, the temperature condition includes: that suction temperature is greater than or equal to preset suction temperature threshold 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；
Heating device is set to the outdoor heat exchanger on the refrigerant outlet tube road under the heating mode, is configured as pair
The refrigerant for flowing through refrigerant outlet tube road is heated；
The control device as claimed in claim 9 for being used for air-conditioner defrosting, is electrically connected with the heating device.
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| CN113685975A (en) * | 2021-08-09 | 2021-11-23 | 格力电器（武汉）有限公司 | Air conditioner and defrosting control method thereof |
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