CN110469977A - 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
- Publication number
- CN110469977A CN110469977A CN201910675378.4A CN201910675378A CN110469977A CN 110469977 A CN110469977 A CN 110469977A CN 201910675378 A CN201910675378 A CN 201910675378A CN 110469977 A CN110469977 A CN 110469977A
- Authority
- CN
- China
- Prior art keywords
- refrigerant
- temperature
- rate
- heating
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010257 thawing Methods 0.000 title claims abstract description 107
- 238000004378 air conditioning Methods 0.000 title claims abstract description 106
- 238000000034 method Methods 0.000 title claims abstract description 62
- 239000003507 refrigerant Substances 0.000 claims abstract description 237
- 238000010438 heat treatment Methods 0.000 claims abstract description 179
- 230000008569 process Effects 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims description 32
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 13
- 238000009833 condensation Methods 0.000 abstract description 7
- 230000005494 condensation Effects 0.000 abstract description 7
- 230000002411 adverse Effects 0.000 abstract description 4
- 230000000875 corresponding effect Effects 0.000 description 59
- 238000010586 diagram Methods 0.000 description 13
- 230000002596 correlated effect Effects 0.000 description 12
- 230000006870 function Effects 0.000 description 12
- 230000008859 change Effects 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 7
- 238000004590 computer program Methods 0.000 description 5
- 230000006698 induction Effects 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 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
- 235000013399 edible fruits Nutrition 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000009916 joint effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000012546 transfer 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
- 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
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000155 melt Substances 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
- 238000011897 real-time detection Methods 0.000 description 1
- 230000009467 reduction Effects 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—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
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (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 accumulated running time and the outdoor coil temperature of compressor in the operation of air conditioner heating mode processes；After determining satisfaction defrosting entry condition according to the accumulated running time and outdoor coil temperature, the refrigerant inlet pipe for the outdoor heat exchanger for flowing through the air-conditioning and the refrigerant on refrigerant outlet tube road are heated in control.Whether the control method can meet the judgement of defrosting entry condition according to the accumulated running time and outdoor coil temperature of the compressor acquired to air-conditioning, improve the control precision to control air-conditioner defrosting；And by the heating operation to the refrigerant for flowing through refrigerant inlet pipe and refrigerant outlet tube road, heating efficiency is promoted, reduces 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, accumulated running time and the outdoor coil temperature of compressor are obtained；
After being determined according to the accumulated running time and outdoor coil temperature and meeting defrosting entry condition, control is to flowing through
The refrigerant inlet pipe of the outdoor heat exchanger of the air-conditioning and the refrigerant on refrigerant outlet tube road are heated.
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 air-conditioning, comprising:
Refrigerant circulation circuit is connected by outdoor heat exchanger, indoor heat exchanger, throttling set and compressor by refrigerant pipeline
It constitutes；
First heater is set in the refrigerant inlet pipe of the outdoor heat exchanger in a heating mode, is configured
To be heated to the refrigerant for flowing through the refrigerant inlet pipe；
Secondary heating mechanism is set to the outdoor heat exchanger on the refrigerant outlet tube road under the heating mode, quilt
It is configured to heat 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, filled respectively with first heating
It sets, secondary heating mechanism electrical connection.
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 tired of the compressor acquired
Whether meter runing time and these parametric synthesis of outdoor coil temperature meet the judgement of defrosting entry condition to air-conditioning, so as to
To effectively improve the control precision to control air-conditioner defrosting；And by flowing through the cold of refrigerant inlet pipe and refrigerant outlet tube road
The heating operation of matchmaker can either effectively improve the refrigerant temperature for flowing into outdoor heat exchanger and then be melted using refrigerant heat outdoor
The frost condensed on heat exchanger can also be improved the refrigerant temperature for being back to compressor, to promote heating efficiency, reduce frost
Condense the adverse effect to 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 accumulated running time and the outdoor coil temperature of compressor；
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, air-conditioning is provided with timing module, in air-conditioning single operational process, works as compressor
When starting operation, timing module starts timing, and when compressor is out of service, timing mode stops timing；Therefore, step
Acquired accumulated running time can be the timing duration counted by the timing module in S101；
Here, when air-conditioning shuts down, the timing duration that timing module is counted is reset.
In the embodiments of the present disclosure, with the increase of compressor of air conditioner operation duration, the outdoor heat exchanger of air-conditioning and outdoor
Heat exchange duration between environment is consequently increased, this also corresponds to outdoor heat exchanger itself and is in the low temperature for being easy condensation frost
The duration of situation.Duration is longer, then a possibility that outdoor heat exchanger condensation frost is bigger, frost thickness is also thicker；And duration is got over
Short, then a possibility that outdoor heat exchanger condensation frost, is smaller, and frost thickness is also thinner；Therefore, the application adds up compressor
Whether there may be the reference factors of frosting problem as outdoor heat exchanger is judged for runing time.
In an alternative embodiment, one first 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, it is obtained in step s101
The outdoor coil temperature taken can be the real time temperature by coil pipe position detected by first 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.
S102, after being determined according to accumulated running time and outdoor coil temperature and meeting defrosting entry condition, control convection current
The refrigerant inlet pipe of outdoor heat exchanger through air-conditioning and the refrigerant on refrigerant outlet tube road are heated.
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 accumulated running time of compressor acquired in step S101 and the
The parameters such as one outdoor coil temperature to whether meet defrosting entry condition judge；Among these, when the accumulative operation of compressor
Between be able to reflect size a possibility that air-conditioning condenses frost, what outdoor coil temperature then can be more sensitive reflects outdoor
Temperature variations of heat exchanger under the influence of outdoor environment temperature, in this way, the embodiment of the present disclosure combines above-mentioned factor parameter
Air-conditioning is judged with the presence or absence of frosting problem jointly, the judgement precision to air-conditioner defrosting can be greatly improved, so that
The defrosting operation of air-conditioning triggering can be more in line with the real-time frosting situation of air-conditioning.
In an alternative embodiment, the defrosting entry condition in step S102 includes:
tim≥tThreshold value, Te≤TSolidifying frost, Temax-Te>=△ T1, TLiquid out-TFeed liquor≤ △ T2,
And TLiquid out-Te≤△T3；
Wherein, timFor the accumulated running time of compressor, tThreshold valueFor preset time threshold, TeFor outdoor coil temperature,
TSolidifying frostFor the solidifying white critical-temperature of current working, TemaxThis outdoor coil temperature maximum value recorded after operation that is switched on for air-conditioning,
TLiquid outGo out liquid temperature, T to flow through the refrigerant of the refrigerant on the refrigerant outlet tube road of outdoor heat exchanger in a heating modeFeed liquorIt is cold to flow through
The refrigerant feed liquor temperature of the refrigerant of matchmaker's inlet pipe, △ T1 are preset first temperature difference threshold, and △ T2 is preset second temperature difference
Threshold value, △ T3 are preset third temperature difference threshold.In the defrosting condition, outdoor coil temperature and outdoor coil temperature maximum value it
Between temperature gap can embody the situation of change of outdoor coil pipe used own temperature under air-conditioning internal and external environment joint effect；Generally
, when outdoor environment operating condition is good, air-conditioning heating operates normally, therefore, outdoor coil temperature is compared to outdoor coil temperature
The variable quantity of maximum value is limited；And when outdoor environment becomes the bad working environments for being easy to cause outdoor heat exchanger to coagulate frost, then by room
The influence of external environment temperature change, outdoor coil temperature decline is very fast, so that it is compared to outdoor coil temperature maximum value
Variable quantity can also generate biggish fluctuation；In this way, one of the defrosting entry condition of the application is according to operating condition outside different chamber
Lower outdoor coil temperature carries out defrosting judgement.
Meanwhile the defrosting entry condition of the application also increases to have and goes out liquid temperature T to refrigerantLiquid outWith refrigerant feed liquor temperature TFeed liquorIt
Between temperature gap height judgement, if the two temperature gap is smaller, illustrate refrigerant heat absorption heating efficiency it is lower, it is possible to
It is caused by air-conditioning frosting, therefore just needs to defrost to outdoor heat exchanger of air conditioner in that case；Therefore, the application
Defrosting entry condition also introduces the sub- condition that defrosting judgement is carried out according to refrigerant liquid in-out temperature, to further increase to defrosting
The accuracy of judgement.
It therefore, further include obtaining refrigerant feed liquor temperature and refrigerant in step S101 when setting this kind defrosting entry condition
Liquid temperature out.
In an alternative embodiment, the outdoor unit of air-conditioning is additionally provided with a second temperature sensor, the second temperature
Sensor can be used for detecting the real time temperature of the refrigerant for the refrigerant inlet pipe for flowing through outdoor heat exchanger；Therefore, in step S101
In acquired refrigerant feed liquor temperature can be the real time temperature of the refrigerant detected by the second temperature sensor；
Here, when refrigerant inlet pipe is run for air-conditioning with heating mode refrigerant flow into outdoor heat exchanger via pipe
Road.
In the embodiments of the present disclosure, the temperature for flowing into the refrigerant of outdoor heat exchanger is the shell for directly influencing outdoor heat exchanger
The internal temperature factor of temperature；Here, when air-conditioning is run with heating mode, outdoor heat exchanger absorbs heat from outdoor environment
Amount, heat transfer sequence are the refrigerant in outdoor environment-outdoor heat exchanger shell-outdoor heat exchange enclosure interior pipeline；Due to heat
The temperature difference between the two of conduction can influence heat conduction efficiency, therefore flow into the temperature height of the refrigerant of outdoor heat exchanger
It is the thermal conduction rate that can change temperature from the refrigerant in outdoor heat exchanger shell internally pipeline, and then room can be influenced
The variation of external heat exchanger case temperature；Therefore the refrigerant feed liquor temperature got, which can be used as, measures air-conditioning internal temperature situation pair
The reference factor that outdoor heat exchanger frosting influences.
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.
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 the accumulated running time of compressor and the determining satisfaction of the first outdoor coil temperature
After the entry condition that defrosts, the defrosting operation of air-conditioning includes controlling to the cold of the refrigerant inlet pipe for the outdoor heat exchanger for flowing through air-conditioning
Matchmaker heats, to improve the temperature for the refrigerant for flowing into outdoor heat exchanger, at this time due to the refrigerant temperature of inflow outdoor heat exchanger
Higher, heat is transmitted to outdoor environment side, and the refrigerant heat after not only being improved using temperature melts outdoor heat exchange
The frost of device, while the refrigerant temperature that outflow outdoor heat exchanger can also be improved, be back to compressor, to enhance the heating of air-conditioning
Performance.
Optionally, it is provided with a heating device at the refrigerant inlet pipe of outdoor heat exchanger of air conditioner, which is set
It is set to and controllably the refrigerant for flowing through refrigerant inlet pipe is heated；Therefore in step s 102, according to the tired of compressor
It counts runing time and the first outdoor coil temperature determines after meeting defrosting entry condition, can control unlatching heating device；And
It is determined in the case where being unsatisfactory for defrosting entry condition, then protected according to the accumulated running time of compressor and the first outdoor coil temperature
Hold the closed state of 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, the refrigerant feed liquor to the outdoor heat exchanger for flowing through air-conditioning is being controlled in step S102
When the refrigerant of pipeline is heated, the refrigerant feed liquor heating parameters that can be first determined according to time difference or temperature gap, then
Corresponding heating operation is executed according to refrigerant feed liquor heating parameters.
Among these, for refrigerant feed liquor heating parameters, time difference includes: accumulated running time and the time threshold of compressor
Time difference between value；Temperature gap includes: the first temperature between outdoor coil temperature maximum value and outdoor coil temperature
Difference coagulates the second temperature difference between frost critical-temperature and outdoor coil temperature, or, refrigerant goes out liquid temperature and refrigerant feed liquor temperature
Third temperature gap between degree；Matchmaker's feed liquor heating parameters include to the rate of heat addition of the refrigerant for flowing through refrigerant inlet pipe and/
Or heating duration.
In technology contents above, time difference and temperature gap are the sub- conditions being respectively used to defrosting entry condition
One of judgement；It, can be according to time difference or temperature gap when therefore determining satisfaction defrosting entry condition in step s 102
Speculate the frosting degree of outdoor heat exchanger, and then according to the different selections of frosting degree to the refrigerant for flowing through refrigerant inlet pipe
The rate of heat addition and heating duration.
For example, when the frosting degree of outdoor heat exchanger is higher, then setting is very fast to the rate of heat addition of refrigerant, with raising pair
The heat temperature raising speed of refrigerant can meet defrosting temperature requirement as early as possible；And setting is longer to the heating duration of refrigerant,
So that refrigerant heat, which has time enough to conduct to the outer surface of outdoor heat exchanger, carries out defrost；Conversely, in outdoor heat exchanger
When frosting degree is lower, then setting is lower to the rate of heat addition of refrigerant, heating duration is shorter, to reduce the function of heating device operation
Consumption, reduces the use cost of air-conditioning.
Optionally, the rate of heat addition to the refrigerant for flowing through refrigerant inlet pipe is determined according to temperature gap, comprising: according to when
Between difference, obtain corresponding first rate of heat addition, from first rate incidence relation to be heated according to first rate of heat addition.
Here, include that one or more time differences are corresponding with first rate of heat addition in first rate incidence relation to close
System.Here, the corresponding relationship of a kind of optional time difference and first rate of heat addition is shown in table 1, as shown in the table,
| Time difference (unit: min) | First rate of heat addition (unit: DEG C/min) |
| △ t11 < tim-tThreshold value≤△t12 | v11 |
| △ t12 < tim-tThreshold value≤△t13 | v12 |
| △ t13 < tim-tThreshold value | v13 |
Table 1
In first rate incidence relation, first rate of heat addition and time difference are to be positively correlated.I.e. time difference is bigger, then and
One rate of heat addition is higher；And time difference 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 inlet pipe
The first rate incidence relation determines corresponding first rate of heat addition of time difference, is then added according to first rate of heat addition
Heat.
It is another optional, the rate of heat addition to the refrigerant for flowing through refrigerant inlet pipe is determined according to temperature gap, comprising: root
According to the first temperature gap, 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 first temperature gaps are corresponding with second rate of heat addition in the second rate incidence relation
Relationship.Here, the corresponding relationship of a kind of optional first temperature gap and second rate of heat addition is shown in table 2, such as following table institute
Show,
| First temperature gap (unit: DEG C) | Second rate of heat addition (unit: DEG C/min) |
| A1 < Temax-Te≤a2 | v21 |
| A2 < Temax-Te≤a3 | v22 |
| A3 < Temax-Te | v23 |
Table 2
In second rate incidence relation, second rate of heat addition and the first temperature gap are to be positively correlated.That is the first temperature gap
Bigger, then second rate of heat addition is higher；And the first temperature gap 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 inlet pipe
The second rate incidence relation determines corresponding second rate of heat addition of the first temperature gap, is then carried out according to second rate of heat addition
Heating.
It is another optional, the rate of heat addition to the refrigerant for flowing through refrigerant inlet pipe is determined according to temperature gap, comprising: root
According to second temperature difference, the corresponding third rate of heat addition is obtained from third speed incidence relation, according to the third rate of heat addition
It is heated.
It here, include that one or more second temperature differences are corresponding with the third rate of heat addition in third speed incidence relation
Relationship.Here, the corresponding relationship of a kind of optional second temperature difference and the third rate of heat addition is shown in table 3, such as following table institute
Show,
| Second temperature difference (unit: DEG C) | The third rate of heat addition (unit: DEG C/min) |
| B1 < TSolidifying frost-Te≤b2 | v31 |
| B2 < TSolidifying frost-Te≤b3 | v32 |
| B3 < TSolidifying frost-Te | v33 |
Table 3
In third speed incidence relation, the third rate of heat addition and second temperature difference are to be positively correlated.That is second temperature difference
Bigger, then the third rate of heat addition is higher；And second temperature difference is smaller, then the third 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 inlet pipe
The third speed incidence relation determines the corresponding third rate of heat addition of second temperature difference, is then carried out according to the third rate of heat addition
Heating.
It is another optional, the rate of heat addition to the refrigerant for flowing through refrigerant inlet pipe is determined according to temperature gap, comprising: root
According to third temperature gap, corresponding 4th rate of heat addition is obtained from fourth rate incidence relation, according to the 4th rate of heat addition
It is heated.
It here, include that one or more third temperature gaps are corresponding with the 4th rate of heat addition in fourth rate incidence relation
Relationship.Here, the corresponding relationship of a kind of optional third temperature gap and the 4th rate of heat addition is shown in table 4, such as following table institute
Show,
Table 4
In fourth rate incidence relation, the 4th rate of heat addition and third temperature gap are negative correlation.That is third temperature gap
Bigger, then the 4th rate of heat addition is lower；And third temperature gap is smaller, then the 4th rate of heat addition is higher.
It therefore, can first basis when in executing step S102 to the heating operation for the refrigerant for flowing through refrigerant inlet pipe
The fourth rate incidence relation determines corresponding 4th rate of heat addition of third temperature gap, is then carried out according to the 4th rate of heat addition
Heating.
In the above-described embodiments, the accumulative operation of the compressor as corresponding to the height of the frosting degree of outdoor heat exchanger
Duration is different, while it influences amplitude difference to the variation of outdoor coil pipe used temperature change and refrigerant liquid in-out temperature, therefore
The application is to be each provided with an individual incidence relation, and air-conditioning can select according to actual needs one of incidence relation true
The fixed corresponding rate of heat addition.
Optionally, the rate incidence relation specifically selected can be determined according to the heating needs of active user, for example, working as
When the heating needs of preceding user are lower, then first rate incidence relation, the second rate incidence relation and third incidence relation are selected,
It is at this time mainly influence of the operating status of outdoor unit components to defrosting effect；And when the heating needs of active user are higher,
Fourth rate incidence relation is then selected, at this time mainly in view of being able to reflect the cold of the refrigerant temperature height for being back to compressor
Matchmaker goes out the size of the influence of outdoor heat exchanger frosting suffered by liquid temperature, so that refrigerant also can be improved refrigerant suction temperature after heating,
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.
Similarly, in some alternative embodiments, it can also be determined according to time difference to flowing through refrigerant inlet pipe
The heating duration of refrigerant, comprising: according to time difference, corresponding first heating duration is obtained from the first duration incidence relation,
To be heated according to the first heating duration.
Here, in the first duration incidence relation, the first heating duration and time difference are to be positively correlated.
Alternatively, obtaining corresponding second heating duration, from the second duration incidence relation according to the first temperature gap to press
It is heated according to the second heating duration.
Here, in the second duration incidence relation, the second heating duration and the first temperature gap are to be positively correlated.
Alternatively, obtaining corresponding third heating duration, from third duration incidence relation according to second temperature difference to press
It is heated according to third heating duration.
Here, in third duration incidence relation, third heats duration and second temperature difference is to be positively correlated.
Alternatively, obtaining corresponding 4th heating duration, from the 4th duration incidence relation according to third temperature gap to press
It is heated according to the 4th heating duration.
Here, in the 4th duration incidence relation, the 4th heating duration and third temperature gap are negative correlation.
In the above-described embodiments, it is referred to according to the mode that time difference or temperature gap obtain heating duration above-mentioned
The control flow of the rate of heat addition is obtained according to temperature gap, therefore not to repeat here.
In further embodiments, liquid heating parameters are gone out for refrigerant, when time difference includes: the accumulative operation of compressor
Between time difference between time threshold；Temperature gap includes: between outdoor coil temperature maximum value and outdoor coil temperature
The first temperature gap, coagulate frost critical-temperature and outdoor coil temperature between second temperature difference, or, refrigerant go out liquid temperature with
The 4th temperature gap between outdoor coil temperature；It includes to the refrigerant for flowing through refrigerant outlet tube road that refrigerant, which goes out liquid heating parameters,
The rate of heat addition and/or heating duration.
In technology contents above, time difference and temperature gap are also the sub- item being respectively used to defrosting entry condition
The judgement of one of part；It, can be according to time difference or temperature difference when therefore determining satisfaction defrosting entry condition in step s 102
Value speculates the frosting degree of outdoor heat exchanger, and then according to the different selections of frosting degree to the refrigerant for flowing through refrigerant outlet tube road
The rate of heat addition and heating duration.
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 time difference, comprising: according to when
Between difference, obtain corresponding 5th rate of heat addition, from the 5th rate incidence relation to be heated according to the 5th rate of heat addition.
Here, include that one or more time differences are corresponding with the 5th rate of heat addition in the 5th rate incidence relation to close
System.Here, the corresponding relationship of a kind of optional time difference and the 5th rate of heat addition is shown in table 5, as shown in the table,
| Time difference (unit: min) | 5th rate of heat addition (unit: DEG C/min) |
| △ t21 < tim-tThreshold value≤△t22 | v51 |
| △ t22 < tim-tThreshold value≤△t23 | v52 |
| △ t23 < tim-tThreshold value | v53 |
Table 5
In 5th rate incidence relation, the 5th rate of heat addition and time difference are to be positively correlated.I.e. time difference is bigger, then and
Five rates of heat addition are higher；And time difference is smaller, then the 5th 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
5th rate incidence relation determines corresponding 5th rate of heat addition of time difference, is then added according to the 5th rate of heat addition
Heat.
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 the first temperature gap, corresponding 6th rate of heat addition is obtained from the 6th rate incidence relation, according to the 6th rate of heat addition
It is heated.
It here, include that one or more first temperature gaps are corresponding with the 6th rate of heat addition in the 6th rate incidence relation
Relationship.Here, the corresponding relationship of a kind of optional first temperature gap and the 6th rate of heat addition is shown in table 6, such as following table institute
Show,
| First temperature gap (unit: DEG C) | 6th rate of heat addition (unit: DEG C/min) |
| D1 < Temax-Te≤d2 | v61 |
| D2 < Temax-Te≤d3 | v62 |
| D3 < Temax-Te | v63 |
Table 6
In 6th rate incidence relation, the 6th rate of heat addition and the first temperature gap are to be positively correlated.That is the first temperature gap
Bigger, then the 6th rate of heat addition is higher；And the first temperature gap is smaller, then the 6th 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
6th rate incidence relation determines corresponding 6th rate of heat addition of the first temperature gap, is then carried out according to the 6th 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 7th rate of heat addition is obtained from the 7th rate incidence relation, according to the 7th rate of heat addition
It is heated.
It here, include that one or more second temperature differences are corresponding with the 7th rate of heat addition in the 7th rate incidence relation
Relationship.Here, the corresponding relationship of a kind of optional second temperature difference and the 7th rate of heat addition is shown in table 7, such as following table institute
Show,
| Second temperature difference (unit: DEG C) | 7th rate of heat addition (unit: DEG C/min) |
| E1 < TSolidifying frost-Te≤e2 | v71 |
| E2 < TSolidifying frost-Te≤e3 | v72 |
| E3 < TSolidifying frost-Te | v73 |
Table 7
In 7th rate incidence relation, the 7th rate of heat addition and second temperature difference are to be positively correlated.That is second temperature difference
Bigger, then the 7th rate of heat addition is higher；And second temperature difference is smaller, then the 7th 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
7th rate incidence relation determines corresponding 7th rate of heat addition of second temperature difference, is then carried out according to the 7th 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 the 4th temperature gap, corresponding 8th rate of heat addition is obtained from the 8th rate incidence relation, according to the 8th rate of heat addition
It is heated.
It here, include that one or more 4th temperature gaps are corresponding with the 8th rate of heat addition in the 8th rate incidence relation
Relationship.Here, the corresponding relationship of a kind of optional 4th temperature gap and the 8th rate of heat addition is shown in table 8, such as following table institute
Show,
Table 8
In 8th rate incidence relation, the 8th rate of heat addition and the 4th temperature gap are negative correlation.That is the 4th temperature gap
Bigger, then the 8th rate of heat addition is lower；And the 4th temperature gap is smaller, then the 8th rate of heat addition is higher.
It therefore, can first basis when in executing step S102 to the heating operation for the refrigerant for flowing through refrigerant outlet tube road
8th rate incidence relation determines corresponding 8th rate of heat addition of the 4th temperature gap, is then carried out according to the 8th 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 second temperature difference with third temperature gap, 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 is referred to technology contents shown in embodiment above, herein
It does not repeat.
Similarly, in some alternative embodiments, it can also be obtained from the 5th duration incidence relation according to time difference
Corresponding 5th heating duration, to be heated according to the 5th heating duration.
Here, in the 5th duration incidence relation, the 5th heating duration and time difference are to be positively correlated.
Alternatively, obtaining corresponding 6th heating duration, from the 6th duration incidence relation according to the first temperature gap to press
It is heated according to the 6th heating duration.
Here, in the 6th duration incidence relation, the 6th heating duration and the first temperature gap are to be positively correlated.
Alternatively, obtaining corresponding 7th heating duration, from the 7th duration incidence relation according to second temperature difference to press
It is heated according to the 7th heating duration.
Here, in the 7th duration incidence relation, the 7th heating duration and second temperature difference are to be positively correlated.
Alternatively, obtaining corresponding 8th heating duration, from the 8th duration incidence relation according to the 4th temperature gap to press
It is heated according to the 8th heating duration.
Here, in the 8th duration incidence relation, the 8th heating duration and the 4th temperature gap are negative correlation.
In the above-described embodiments, it is referred to according to the mode that time difference or temperature gap obtain heating duration above-mentioned
The control flow of the rate of heat addition is obtained according to temperature gap, therefore not to repeat here.
In some alternative embodiments, determining that meeting defrosting enters according to accumulated running time and outdoor coil temperature
After condition, further includes: control reduces the running frequency of the compressor of air-conditioning.
In embodiment, by reducing the running frequency of the compressor of air-conditioning, it can reduce refrigerant in outdoor heat exchanger
Heat absorption rate, and then can weaken because refrigerant heat absorption caused by outdoor heat exchanger temperature further decrease, frosting degree adds
The adverse effect of weight is removed in execution to what the refrigerant of refrigerant inlet pipe and refrigerant outlet tube road was heated to improve air-conditioning
The defrosting effect of frost operation.
Here, it after air-conditioning exits defrosting, can control the running frequency for restoring compressor of air conditioner, exit defrosting to meet
Air-conditioning normally heats the frequency requirement of work afterwards.
In other optional embodiment, determined according to accumulated running time and outdoor coil temperature meet defrost into
After entering condition, further includes: control reduces the revolving speed of the outdoor fan of air-conditioning or shuts down outdoor fan, and/or, control reduces empty
The revolving speed of the indoor fan of tune.
In embodiment, pass through the revolving speed of the indoor fan of reduction air-conditioning, it is possible to reduce indoor heat exchanger and indoor environment
Exchange rate so that indoor heat exchanger outflow after flow into outdoor heat exchanger refrigerant can retain more heat, can
It improves using refrigerant heat to the defrosting effect of outdoor heat exchanger, the operation power consumption of heating devices heat refrigerant can also be reduced.
Meanwhile by shutting down outdoor fan, can also be reduced with the exchange rate of less outdoor heat exchanger and outdoor environment
The cryogenic conditions of outdoor environment influence the unfavorable temperature of outdoor heat exchanger frosting, reduce the heat dissipation of the refrigerant heat of defrost,
To guarantee the practical defrosting effect during defrosting.
In other optional embodiment, determined according to accumulated running time and outdoor coil temperature meet defrost into
After entering condition, further includes: control increases the flow aperture of the throttling set of air-conditioning.
In embodiment, by increasing the flow aperture of the throttling set of air-conditioning, the throttling effect of throttling set can be reduced
Fruit is able to maintain higher temperature to flow through the refrigerant of throttling set, to enable the subsequent refrigerant for flowing into outdoor heat exchanger
Enough realize preferable defrosting effect.
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, the accumulated running time t for detecting compressorimWith outdoor coil temperature Te；
S203, detection refrigerant feed liquor temperature TFeed liquorGo out liquid temperature T with refrigerantLiquid out；
S204, judge whether tim≥tThreshold value, Te≤TSolidifying frost, Temax-Te>=△ T1, TLiquid out-TFeed liquor≤ △ T2, and TLiquid out-Te≤△
T3, if so, S205 is thened follow the steps, if it is not, then returning to step S202；
In the embodiments of the present disclosure, tim≥tThreshold value, Te≤TSolidifying frost, Temax-Te>=△ T1, TLiquid out-TFeed liquor≤ △ T2, and TLiquid out-Te
≤ △ T3 collectively forms preset defrosting entry condition.
Here, after air-conditioning booting operation, temperature sensor real-time detection upper casing temperature, and the more upper casings that will test
Temperature is saved as historical data；Therefore it when executing the judgment step of step S203, can transfer in historical data
Multiple upper casing temperatures, and determine upper housing temperature maximum T by comparingUpper housing max；
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.
S205, according to tim-tThreshold value, obtain corresponding first rate of heat addition from first rate incidence relation, and according to
tim-tThreshold value, corresponding first heating duration is obtained from the first duration incidence relation；
S206, according to tim-tThreshold value, corresponding 5th rate of heat addition is obtained from the 5th rate incidence relation, and according to tim-
tThreshold value, corresponding 5th heating duration is obtained from the 5th duration incidence relation；
In the embodiments of the present disclosure, the specific executive mode of step S205 and S206 may refer to embodiment hereinbefore,
Therefore not to repeat here.
S207, first heater is opened according to first rate of heat addition and the first heating duration, and according to the 5th
The rate of heat addition and the 5th heating duration open secondary heating mechanism；
In the embodiments of the present disclosure, first heater is set to the refrigerant inlet pipe of outdoor heat exchanger under heating mode
On, it is configured as heating the refrigerant for flowing through the refrigerant inlet pipe.Secondary heating mechanism is set to room under heating mode
The refrigerant outlet tube road of external heat exchanger, is configured as heating the refrigerant for flowing through the refrigerant outlet tube road.
Optionally, heating device is electromagnetic heater, therefore for the tune of first rate of heat addition and the third rate of heat addition
Section can be realized by parameters such as the operating current of change electromagnetic heater or voltages.
S208, control reduce the running frequency of compressor to first frequency；Process terminates.
When the control method for air-conditioner defrosting that the embodiment of the present disclosure provides can be according to the accumulative operation acquired
Between and the parametric synthesis such as outdoor coil temperature whether meet the judgement of defrosting entry condition to air-conditioning, so as to effectively improve pair
Control the control precision of air-conditioner defrosting；And it is grasped by the heating to the refrigerant for flowing through refrigerant inlet pipe and refrigerant outlet tube road
Make, the refrigerant temperature for flowing into outdoor heat exchanger can either be effectively improved and then melted using refrigerant heat and coagulated on outdoor heat exchanger
The frost of knot can also be improved the refrigerant temperature for being back to compressor, to promote heating efficiency, reduce frost condensation to air-conditioning
The adverse effect of itself heating performance.
In some alternative embodiments, the refrigerant for flowing through refrigerant inlet pipe and refrigerant outlet tube road is carried out in control
After heating, further includes: obtain the state parameter in operation of air conditioner heating mode processes；Meet defrosting determining according to state parameter
After exit criteria, control stops heating.
Here, the state parameter in operation of air conditioner heating mode processes is at least one of following parameter type or several
Kind: outdoor environment temperature, refrigerant feed liquor temperature, refrigerant go out liquid temperature and outdoor coil temperature.It should be understood that in the application
The state parameter of acquisition is not limited to parameter type shown in above-described embodiment.
Corresponding, defrosting exit criteria is preset according to the parameter type specifically acquired, in general, in sky
Adjust and illustrate that outdoor heat exchanger has defrosted completions when meeting defrosting exit criteria, on outdoor heat exchanger there is no it is solidifying white or there is only
A small amount of solidifying frost, influences the normal heating performance of air-conditioning lower；For example, when parameter type is outdoor environment temperature, then it is a kind of
Optional defrosting exit criteria is that outdoor environment temperature is greater than or equal to preset outer circumstance temperature threshold value.
Then after acquiring outdoor environment temperature, according to outdoor environment temperature to whether meet defrosting exit criteria sentence
It is disconnected；If it is satisfied, then control stops heating；If conditions are not met, then maintaining currently running working condition constant, convection current is still kept
Heating through refrigerant inlet pipe.
In the embodiments of the present disclosure, air-conditioning carries out respectively to the refrigerant for flowing through refrigerant inlet pipe and refrigerant outlet tube road
During heating, the judgement operation to defrosting exit criteria is carried out according to the parameter of air-conditioning in real time, to move back in satisfaction defrosting
Stop the heating operation to refrigerant in the case where condition out, so that the power consumption of two heating devices of operation be effectively reduced.
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；
First heater 451 is set in the refrigerant inlet pipe of outdoor heat exchanger in a heating mode, is configured as
The refrigerant for flowing through refrigerant inlet pipe is heated；
Secondary heating mechanism 452 is set to the refrigerant outlet tube road of outdoor heat exchanger 41 in a heating mode, is configured
To be heated to the refrigerant for flowing through refrigerant outlet tube road；
For the control device 46 of air-conditioner defrosting, it is electrically connected respectively with first heater 451, secondary heating mechanism 452.
Here, this is used for control device of air-conditioner defrosting as 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, accumulated running time and the outdoor coil temperature of compressor are obtained；
After determining satisfaction defrosting entry condition according to the accumulated running time and outdoor coil temperature, control is described to flowing through
The refrigerant inlet pipe of the outdoor heat exchanger of air-conditioning and the refrigerant on refrigerant outlet tube road are heated.
2. control method according to claim 1, which is characterized in that the defrosting entry condition includes:
tim≥tThreshold value, Te≤TSolidifying frost, Temax-Te>=△ T1, TLiquid out-TFeed liquor≤ △ T2,
And TLiquid out-Te≤△T3；
Wherein, the timFor the accumulated running time of the compressor, tThreshold valueFor preset time threshold, the TeFor the room
Outer coil temperature, TSolidifying frostFor the solidifying white critical-temperature of current working, TemaxFor the outdoor recorded after this booting operation of the air-conditioning
Coil temperature maximum value, the TLiquid outFor the refrigerant for flowing through the refrigerant outlet tube road of the outdoor heat exchanger in a heating mode
Refrigerant goes out liquid temperature, the TFeed liquorFor flow through the refrigerant inlet pipe refrigerant refrigerant feed liquor temperature, △ T1 is preset the
One temperature difference threshold, △ T2 are preset second temperature difference threshold, and △ T3 is preset third temperature difference threshold.
3. control method according to claim 2, which is characterized in that the described pair of refrigerant for flowing through refrigerant inlet pipe carries out
The refrigerant feed liquor heating parameters of heating are determined according to the time difference or temperature gap；And/or
The refrigerant that the described pair of refrigerant for flowing through refrigerant outlet tube road is heated goes out liquid heating parameters according to time difference or temperature
Difference determines；
For the refrigerant feed liquor heating parameters, the time difference include: the compressor accumulated running time with it is described
Time difference between time threshold；
The temperature gap includes: the first temperature difference between the outdoor coil temperature maximum value and the outdoor coil temperature
Value, the second temperature difference between the solidifying white critical-temperature and the outdoor coil temperature, or, the refrigerant go out liquid temperature with
Third temperature gap between the refrigerant feed liquor temperature；
When the refrigerant feed liquor heating parameters include the rate of heat addition and/or heating to the refrigerant for flowing through the refrigerant inlet pipe
It is long；
Liquid heating parameters are gone out for the refrigerant, the time difference include: the compressor accumulated running time with it is described
Time difference between time threshold；
The temperature gap includes: the first temperature difference between the outdoor coil temperature maximum value and the outdoor coil temperature
Value, the second temperature difference between the solidifying white critical-temperature and the outdoor coil temperature, or, the refrigerant go out liquid temperature with
The 4th temperature gap between the outdoor coil temperature；
The refrigerant goes out liquid heating parameters when including the rate of heat addition and/or heating to the refrigerant for flowing through refrigerant outlet tube road
It is long.
4. control method according to claim 3, which is characterized in that according to determining pair of the time difference or temperature gap
Flow through the rate of heat addition of the refrigerant of the refrigerant inlet pipe, comprising:
According to the time difference, corresponding first rate of heat addition is obtained from first rate incidence relation, according to described
One rate of heat addition is heated；Or,
According to first temperature gap, corresponding second rate of heat addition is obtained from the second rate incidence relation, according to institute
Second rate of heat addition is stated to be heated；Or,
According to the second temperature difference, the corresponding third rate of heat addition is obtained from third speed incidence relation, according to institute
The third rate of heat addition is stated to be heated；Or,
According to the third temperature gap, corresponding 4th rate of heat addition is obtained from fourth rate incidence relation, according to institute
The 4th rate of heat addition is stated to be heated.
5. control method according to claim 3, which is characterized in that according to determining pair of the time difference or temperature gap
Flow through the heating duration of the refrigerant of the refrigerant inlet pipe, comprising:
According to the time difference, corresponding first heating duration is obtained from the first duration incidence relation, according to described the
One heating duration is heated；Or,
According to first temperature gap, corresponding second heating duration is obtained from the second duration incidence relation, according to institute
The second heating duration is stated to be heated；Or,
According to the second temperature difference, corresponding third heating duration is obtained from third duration incidence relation, according to institute
Third heating duration is stated to be heated；Or,
According to the third temperature gap, corresponding 4th heating duration is obtained from the 4th duration incidence relation, according to institute
The 4th heating duration is stated to be heated.
6. control method according to claim 3, which is characterized in that according to determining pair of the time difference or temperature gap
Flow through the rate of heat addition of the refrigerant on refrigerant outlet tube road, comprising:
According to the time difference, corresponding 5th rate of heat addition is obtained from the 5th rate incidence relation, according to described
Five rates of heat addition are heated；Or,
According to first temperature gap, corresponding 6th rate of heat addition is obtained from the 6th rate incidence relation, according to institute
The 6th rate of heat addition is stated to be heated；Or,
According to the second temperature difference, corresponding 7th rate of heat addition is obtained from the 7th rate incidence relation, according to institute
The 7th rate of heat addition is stated to be heated；Or,
According to the 4th temperature gap, corresponding 8th rate of heat addition is obtained from the 8th rate incidence relation, according to institute
The 8th rate of heat addition is stated to be heated.
7. control method according to claim 3, which is characterized in that according to determining pair of the time difference or temperature gap
Flow through the heating duration of the refrigerant on refrigerant outlet tube road, comprising:
According to the time difference, corresponding 5th heating duration is obtained from the 5th duration incidence relation, according to described the
Five heating durations are heated；Or,
According to first temperature gap, corresponding 6th heating duration is obtained from the 6th duration incidence relation, according to institute
The 6th heating duration is stated to be heated；Or,
According to the second temperature difference, corresponding 7th heating duration is obtained from the 7th duration incidence relation, according to institute
The 7th heating duration is stated to be heated；Or,
According to the 4th temperature gap, corresponding 8th heating duration is obtained from the 8th duration incidence relation, according to institute
The 8th heating duration is stated to be heated.
8. control method according to any one of claims 1 to 7, which is characterized in that according to the accumulated running time
It is determined with outdoor coil temperature after meeting defrosting entry condition, further includes:
Control reduces the running frequency of the compressor of the air-conditioning；Alternatively,
Control reduces the revolving speed of the outdoor fan of the air-conditioning or shuts down the outdoor fan, and/or, control reduces the sky
The revolving speed of the indoor fan of tune；Alternatively,
Control increases the flow aperture of the throttling set of the air-conditioning.
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；
First heater is set in the refrigerant inlet pipe of the outdoor heat exchanger in a heating mode, is configured as pair
The refrigerant for flowing through the refrigerant inlet pipe is heated；
Secondary heating mechanism 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；
The control device as claimed in claim 9 for being used for air-conditioner defrosting is filled with the first heater, the second heating respectively
Set electrical connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910675378.4A CN110469977B (en) | 2019-07-25 | 2019-07-25 | Control method and device for defrosting of air conditioner and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910675378.4A CN110469977B (en) | 2019-07-25 | 2019-07-25 | Control method and device for defrosting of air conditioner and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110469977A true CN110469977A (en) | 2019-11-19 |
| CN110469977B CN110469977B (en) | 2022-09-02 |
Family
ID=68508893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910675378.4A Active CN110469977B (en) | 2019-07-25 | 2019-07-25 | Control method and device for defrosting of air conditioner and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110469977B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113566383A (en) * | 2021-07-20 | 2021-10-29 | 珠海格力电器股份有限公司 | Intelligent defrosting method and device, electric appliance and computer readable storage medium |
| WO2022222545A1 (en) * | 2021-04-23 | 2022-10-27 | 美的集团武汉暖通设备有限公司 | Defrosting control method, storage medium, and air conditioner |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1204029A (en) * | 1997-06-27 | 1999-01-06 | 三星电子株式会社 | Defrosting apparatus of air conditioner and method thereof |
| CN103596783A (en) * | 2011-06-10 | 2014-02-19 | Lg电子株式会社 | Air conditioner in electric vehicle |
| CN104019531A (en) * | 2014-05-30 | 2014-09-03 | 广东美的制冷设备有限公司 | Defrosting method of air-conditioner and air-conditioner |
| CN104596032A (en) * | 2014-12-31 | 2015-05-06 | 广东美的制冷设备有限公司 | Air conditioner and defrosting control method thereof |
| 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 |
| CN106765778A (en) * | 2017-01-10 | 2017-05-31 | 美的集团武汉制冷设备有限公司 | The defrosting control method of air-conditioner and air-conditioner |
| CN107044716A (en) * | 2017-04-21 | 2017-08-15 | 广东美的暖通设备有限公司 | Air-conditioner defrosting control method, air-conditioning and computer-readable recording medium |
| JP2018536823A (en) * | 2016-11-11 | 2018-12-13 | 青島海尓空調器有限総公司Ｑｉｎｇｄａｏ Ｈａｉｅｒ Ａｉｒ Ｃｏｎｄｉｔｉｏｎｅｒ Ｇｅｎｅｒａｌ Ｃｏｒｐ．，Ｌｔｄ． | Cleaning method for indoor and outdoor air conditioners |
| KR20180137063A (en) * | 2017-06-15 | 2018-12-27 | 엘지전자 주식회사 | Air conditioner and Method for controlling it |
-
2019
- 2019-07-25 CN CN201910675378.4A patent/CN110469977B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1204029A (en) * | 1997-06-27 | 1999-01-06 | 三星电子株式会社 | Defrosting apparatus of air conditioner and method thereof |
| CN103596783A (en) * | 2011-06-10 | 2014-02-19 | Lg电子株式会社 | Air conditioner in electric vehicle |
| CN104019531A (en) * | 2014-05-30 | 2014-09-03 | 广东美的制冷设备有限公司 | Defrosting method of air-conditioner and air-conditioner |
| CN104596032A (en) * | 2014-12-31 | 2015-05-06 | 广东美的制冷设备有限公司 | Air conditioner and defrosting control method thereof |
| JP2018536823A (en) * | 2016-11-11 | 2018-12-13 | 青島海尓空調器有限総公司Ｑｉｎｇｄａｏ Ｈａｉｅｒ Ａｉｒ Ｃｏｎｄｉｔｉｏｎｅｒ Ｇｅｎｅｒａｌ Ｃｏｒｐ．，Ｌｔｄ． | Cleaning method for indoor and outdoor air conditioners |
| 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 |
| CN106765778A (en) * | 2017-01-10 | 2017-05-31 | 美的集团武汉制冷设备有限公司 | The defrosting control method of air-conditioner and air-conditioner |
| CN107044716A (en) * | 2017-04-21 | 2017-08-15 | 广东美的暖通设备有限公司 | Air-conditioner defrosting control method, air-conditioning and computer-readable recording medium |
| KR20180137063A (en) * | 2017-06-15 | 2018-12-27 | 엘지전자 주식회사 | Air conditioner and Method for controlling it |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022222545A1 (en) * | 2021-04-23 | 2022-10-27 | 美的集团武汉暖通设备有限公司 | Defrosting control method, storage medium, and air conditioner |
| CN113566383A (en) * | 2021-07-20 | 2021-10-29 | 珠海格力电器股份有限公司 | Intelligent defrosting method and device, electric appliance and computer readable storage medium |
| CN113566383B (en) * | 2021-07-20 | 2022-06-14 | 珠海格力电器股份有限公司 | Intelligent defrosting method and device, electric appliance and computer readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110469977B (en) | 2022-09-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110469959A (en) | For the control method of air-conditioner defrosting, device and air-conditioning | |
| CN110469961A (en) | For the control method of air-conditioner defrosting, device and air-conditioning | |
| CN110469995A (en) | For the control method of air-conditioner defrosting, device and air-conditioning | |
| CN110469993A (en) | For the control method of air-conditioner defrosting, device and air-conditioning | |
| CN110469991A (en) | For the control method of air-conditioner defrosting, device and air-conditioning | |
| CN110469996A (en) | For the control method of air-conditioner defrosting, device and air-conditioning | |
| CN110469990A (en) | For the control method of air-conditioner defrosting, device and air-conditioning | |
| CN110469977A (en) | For the control method of air-conditioner defrosting, device and air-conditioning | |
| CN110470019A (en) | Control method and device, air-conditioning for air-conditioner defrosting | |
| CN110470024A (en) | Control method and device, air-conditioning for air-conditioner defrosting | |
| CN110469969A (en) | For the control method of air-conditioner defrosting, device and air-conditioning | |
| CN110469986A (en) | For the control method of air-conditioner defrosting, device and air-conditioning | |
| CN110469992A (en) | For the control method of air-conditioner defrosting, device and air-conditioning | |
| CN110469982A (en) | For the control method of air-conditioner defrosting, device and air-conditioning | |
| CN110470000A (en) | For the control method of air-conditioner defrosting, device and air-conditioning | |
| CN110469981A (en) | For the control method of air-conditioner defrosting, device and air-conditioning | |
| CN110470022A (en) | Control method and device, air-conditioning for air-conditioner defrosting | |
| CN110470023A (en) | Control method and device, air-conditioning for air-conditioner defrosting | |
| CN110469972A (en) | For the control method of air-conditioner defrosting, device and air-conditioning | |
| CN110469976A (en) | For the control method of air-conditioner defrosting, device and air-conditioning | |
| CN110469978A (en) | For the control method of air-conditioner defrosting, device and air-conditioning | |
| CN110469971A (en) | For the control method of air-conditioner defrosting, device and air-conditioning | |
| CN110469960A (en) | For the control method of air-conditioner defrosting, device and air-conditioning | |
| CN110469966A (en) | For the control method of air-conditioner defrosting, device and air-conditioning | |
| CN110469963A (en) | For the control method of air-conditioner defrosting, device and air-conditioning |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |