CN110469983A - For the control method of air-conditioner defrosting, device and air-conditioning - Google Patents
For the control method of air-conditioner defrosting, device and air-conditioning Download PDFInfo
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- CN110469983A CN110469983A CN201910682551.3A CN201910682551A CN110469983A CN 110469983 A CN110469983 A CN 110469983A CN 201910682551 A CN201910682551 A CN 201910682551A CN 110469983 A CN110469983 A CN 110469983A
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- 238000010257 thawing Methods 0.000 title claims abstract description 101
- 238000004378 air conditioning Methods 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 66
- 238000010438 heat treatment Methods 0.000 claims abstract description 155
- 239000003507 refrigerant Substances 0.000 claims abstract description 146
- 230000008569 process Effects 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims description 23
- 238000009833 condensation Methods 0.000 abstract description 9
- 230000005494 condensation Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 9
- 230000002411 adverse Effects 0.000 abstract description 3
- 230000000875 corresponding effect Effects 0.000 description 42
- 238000010586 diagram Methods 0.000 description 13
- 230000006870 function Effects 0.000 description 11
- 238000004891 communication Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 230000002596 correlated effect Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000004590 computer program Methods 0.000 description 5
- 230000006698 induction Effects 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000007791 dehumidification Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000009916 joint effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 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
- 229910052802 copper Inorganic materials 0.000 description 1
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- 238000006731 degradation reaction Methods 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000009790 rate-determining step (RDS) Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—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
- F25B47/022—Defrosting cycles hot gas defrosting
- F25B47/025—Defrosting cycles hot gas defrosting by reversing the cycle
-
- 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
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- 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, control enters reverse cycle defrosting mode and executes the first heating operation of the refrigerant to the refrigerant outlet tube road for the outdoor heat exchanger for flowing through the air-conditioning.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 reverse cycle defrosting mode and by way of heating to the refrigerant for flowing through refrigerant outlet tube road, accelerate to reduce frost condensation to the adverse effect of air-conditioning itself heating performance.A kind of control device and air-conditioning for air-conditioner defrosting is also disclosed in the application.
Description
Technical field
This application involves air-conditioner defrosting technical fields, for example, be related to it is a kind of for the control method of air-conditioner defrosting, device and
Air-conditioning.
Background technique
Currently, the mainstream model of air-conditioning is mostly the heat exchange function for having refrigeration refrigeration double mode, here, air-conditioning is cryogenically
Under area or the biggish weather conditions of wind and snow, user is usually to adjust air-conditioning to heating mode, indoor to be promoted using air-conditioning
The temperature of environment；In air conditioner in operation heating operations, the outdoor heat exchanger of outdoor unit is to play to absorb from outdoor environment
The effect of the evaporator of heat is influenced by the temperature and humidity of outdoor environment, and the more ice of condensation is easy on outdoor heat exchanger
Frost, and meeting is so that the heating capacity of air-conditioning can be lower and lower, therefore imitates to guarantee to heat after simultaneously frost knot arrives certain thickness
Fruit avoids frost condensation excessive, it is therefore necessary to defrost to outdoor heat exchanger.
Here, the mode to defrost to outdoor heat exchanger is mainly include the following types: first is that reverse cycle defrosting, air-conditioning carry out
When reverse cycle defrosting, the high temperature refrigerant of compressor discharge first flows through outdoor heat exchanger, to melt frost using refrigerant heat；Second is that
Increase electric heater unit on the refrigerant pipeline of air-conditioning, the refrigerant for flowing into outdoor heat exchanger is heated using electric heater unit, in turn
Melt the frost condensed on outdoor heat exchanger using refrigerant heat；Third is that adjusting the air supply rates such as compressor, electric expansion valve
Operating parameter, to change the temperature and pressure state of refrigerant in refrigerant pipeline, making it also can be played to outdoor heat exchanger defrosting
Effect.
During realizing the embodiment of the present disclosure, at least there are the following problems in the related technology for discovery:
More or less all can in the process as shown in above-described embodiment to the defrosting of the Defrost mode of outdoor heat exchanger
Constituting on the normal heating performance of air-conditioning influences, therefore air-conditioning will do it defrosting judgement before defrosting, and then be tied according to judgement
Whether fruit control air-conditioning defrosts；In the related technology generally by numeric ratio between outdoor environment temperature and frost point temperature
Compared with mode carry out defrosting judgement, due to outdoor heat exchanger frosting device can simultaneously by outdoor environment and self-operating state
The influence of equal many factors, therefore above-mentioned defrosting judgment mode is excessively rough, it is difficult to meet air-conditioning to accurate triggering defrosting movement
Needs.
Summary of the invention
In order to which some aspects of the embodiment to disclosure have basic understanding, simple summary is shown below.It is described general
Including is not extensive overview, nor to determine key/critical component or describe the protection scope of these embodiments, but is made
For the preamble of following detailed description.
The embodiment of the present disclosure provide it is a kind of for the control method of air-conditioner defrosting, device and air-conditioning, to solve related skill
Air-conditioner defrosting judges the lower technical problem of accuracy in art.
In some embodiments, the control method for air-conditioner defrosting includes:
In the operation of air conditioner heating mode processes, 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 enters inverse
The first heating of circulating defrosting mode and execution to the refrigerant on the refrigerant outlet tube road for the outdoor heat exchanger for flowing through the air-conditioning
Operation.
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；
Heating device is set to the outdoor heat exchanger on the refrigerant outlet tube road under the heating mode, is configured
To be heated to the refrigerant for flowing through refrigerant outlet tube road；
Such as above-mentioned some control devices as described in the examples for air-conditioner defrosting, it is electrically connected with the heating device.
The embodiment of the present disclosure provide for the control method of air-conditioner defrosting, device and air-conditioning, following technology may be implemented
Effect:
The control method for air-conditioner defrosting that the embodiment of the present disclosure provides can be according to the 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 utilize high temperature refrigerant to outdoor heat exchange by reverse cycle defrosting mode
Device defrosting, and further increase to flow down against circulation pattern by way of heating the refrigerant for flowing through refrigerant outlet tube road and enter the room
The refrigerant temperature of external heat exchanger can effectively improve the defrosting efficiency to outdoor heat exchanger, accelerate to reduce frost condensation to air-conditioning
The adverse effect of 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 enters
The first heating of the refrigerant on the refrigerant outlet tube road for the outdoor heat exchanger for flowing through air-conditioning is grasped in reverse cycle defrosting mode and execution
Make.
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 the accumulated running time according to compressor acquired in step S101 and room
The parameters such as outer coil temperature to whether meet defrosting entry condition judge；Among these, the accumulated running time energy of compressor
The size for a possibility that being enough reflected in air-conditioning condensation frost, what outdoor coil temperature then can be more sensitive reflects outdoor heat exchange
Temperature variations of device under the influence of outdoor environment temperature, in this way, to combine above-mentioned factor parameter common for the embodiment of the present disclosure
Air-conditioning is judged with the presence or absence of frosting problem, the judgement precision to air-conditioner defrosting can be greatly improved, so that air-conditioning
The defrosting operation of 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, and TLiquid out-Te≤△T2；
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 to flow through the refrigerant of the refrigerant on the refrigerant outlet tube road of outdoor heat exchanger in a heating mode, △ T1 is default
The first temperature difference threshold, △ T2 be preset second temperature difference threshold.
In the defrosting condition, the temperature gap between outdoor coil temperature and outdoor coil temperature maximum value can be embodied
The situation of change of outdoor coil pipe used own temperature under air-conditioning internal and external environment joint effect；In general, good, empty in outdoor environment operating condition
When modulation heat operates normally, therefore, outdoor coil temperature is limited compared to the variable quantity of outdoor coil temperature maximum value；And work as room
When external environment becomes the bad working environments for being easy to cause outdoor heat exchanger to coagulate frost, then influenced by outdoor environment temperature variation, it is outdoor
Coil temperature decline is very fast, so that it can also generate biggish wave compared to the variable quantity of outdoor coil temperature maximum value
It is dynamic；In this way, one of the defrosting entry condition of the application is to carry out defrosting according to outdoor coil temperature under operating condition outside different chamber to sentence
It is disconnected.
It further include obtaining refrigerant to go out liquid temperature in step S101 when setting this kind defrosting entry condition.
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 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 second 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 defrosting of outdoor coil temperature
After entry condition, the defrosting operation of air-conditioning includes that control changes the outdoor for flowing through air-conditioning into reverse cycle defrosting mode and execution
First heating operation of the refrigerant on the refrigerant outlet tube road of hot device.
Wherein, reverse cycle defrosting mode includes that the refrigerant flow direction of control air-conditioning is switched to the flow direction opposite with heating mode；
Under this kind of model process, the high temperature refrigerant of compressor discharge is first to flow through outdoor heat exchanger, so as to utilize high temperature refrigerant
Heat realize to the defrosting operation of outdoor heat exchanger.
Meanwhile under inverse circulation pattern, the refrigerant outlet tube road under heating mode is substantially to become " refrigerant inlet tube
Road ", i.e., at this time refrigerant via under refrigeration mode refrigerant outlet tube road flow into outdoor heat exchanger；Therefore, by flowing through refrigerant
The heating of the refrigerant on outlet tube road can be further improved the refrigerant temperature for flowing into indoor heat exchanger, actual so as to enhance
Defrosting effect.
Optionally, it is provided with a heating device at the refrigerant outlet tube road of outdoor heat exchanger, which is arranged to
Controllably the refrigerant for flowing through refrigerant outlet tube road is heated.
Therefore in step s 102, satisfaction defrosting is being determined according to the accumulated running time of compressor and outdoor coil temperature
After entry condition, it can control operation reverse cycle defrosting mode and open the heating device the first heating operation of execution；And in root
It is determined according to the accumulated running time of compressor and outdoor coil temperature in the case where being unsatisfactory for defrosting entry condition, then keeps heating
Mode is constant and keeps the closed state of the heating device.
In one embodiment, heating device is electromagnetic heater, and electromagnetic heater utilizes electromagnetic induction heating
Principle heats refrigerant pipeline, and then the refrigerant for flowing through refrigerant pipeline is conducted heat to using refrigerant pipeline, cold to reach heating
The purpose of matchmaker.
Here, the corresponding refrigerant pipe section heated of electromagnetic heater is the pipeline section of the metal materials such as copper or irony,
Electromagnetic heater is mainly made of induction coil and power supply module, and induction coil is wound in above-mentioned refrigerant pipeline here
Section, power supply module can provide alternating current for induction coil；When induction coil is powered, the alternating current of induction coil is flowed through
The alternating magnetic field for passing through refrigerant pipe section is generated, which can make refrigerant inner tube segment generate vortex, so as to rely on
The energy of these vortex plays the role of heat temperature raising.
It is filled it should be understood that the type for the heating device that the application is used to heat refrigerant is not limited to above-mentioned electromagnetic heating
It sets, the other types of heating device that can be used in directly or indirectly heating refrigerant can also be using the application's in the related technology
Technical solution, and cover within the scope of protection of this application.
In an alternative embodiment, in step S102 in first heating operation of the control to refrigerant outlet tube road,
The heating operation of the first heating operation can be determined according to time difference or temperature gap, then according to heating operation execute this
One heating operation.
Among these, time difference includes: the time difference between the accumulated running time of compressor and time threshold；Temperature
Difference includes: the first temperature gap between outdoor coil temperature maximum value and outdoor coil temperature, coagulates frost critical-temperature and room
Second temperature difference between outer coil temperature, alternatively, refrigerant goes out the third temperature difference between liquid temperature and outdoor coil temperature
Value；Heating parameters include the rate of heat addition and/or heating duration of the first heating operation.
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 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 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 outlet tube road
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 outlet tube road 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 outlet tube road
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 outlet tube road 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 outlet tube road
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 outlet tube road 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,
| Third temperature gap (unit: DEG C) | 4th rate of heat addition (unit: DEG C/min) |
| C1 < TLiquid out-Te≤c2 | v41 |
| C2 < TLiquid out-Te≤c3 | v42 |
| C3 < TLiquid out-Te | v43 |
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 outlet tube road
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,
Mainly influence of the operating status of outdoor unit components (compressor or outdoor coil pipe used) to defrosting effect at this time；And in active user
Heating needs it is higher when, then select fourth rate incidence relation, be mainly back to compressor in view of being able to reflect at this time
Refrigerant temperature height refrigerant go out outdoor heat exchanger frosting suffered by liquid temperature influence size so that heating after refrigerant also can
Refrigerant suction temperature is improved, 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 outlet tube road
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 some alternative embodiments, in order to the heating performance of air-conditioning, this Shen can be promoted as early as possible when air-conditioning is switched on
Please control method the step of further include: after air-conditioning is switched on heating mode, control execute to the outdoor heat exchanger for flowing through air-conditioning
Refrigerant outlet tube road refrigerant the second heating operation.
At this point, refrigerant flows out outdoor heat exchanger via refrigerant outlet tube road, and it is back to compressor, therefore, the second heating
Operation can be improved the suction temperature for the refrigerant for being back to compressor, to improve air-conditioning in the heating performance of start-up phase.
Optionally, the application is after control executes the second heating operation, further includes: obtains the return air temperature of the compressor of air-conditioning
Degree；When the suction temperature of compressor meets preset temperature condition, control stops the second heating operation.
In the present embodiment, the air return end of compressor of air conditioner is additionally provided with a temperature sensor, and the temperature sensor is available
Refrigerant temperature in detection stream cooled via return air end；Therefore the refrigerant temperature that real-time detection arrives can be obtained by the temperature sensor,
And as judging the suction temperature of temperature condition.
In an alternative embodiment, temperature condition includes: that suction temperature is greater than or equal to preset suction temperature threshold
Value.
Here, in the case where suction temperature is greater than or equal to preset suction temperature threshold value, illustrate the system of air-conditioning at this time
Hot property can control can satisfy current heating needs and stop the second heating operation, guarantee that air-conditioning heating need in this way
In the case where asking, it is possible to reduce the power consumption of the second heating operation；And it is less than the feelings of preset suction temperature threshold value in suction temperature
Under condition, illustrate that the heating performance of air-conditioning at this time not yet meets current heating needs, therefore keep the second heating operation constant.
Fig. 2 is the flow diagram for the control method for air-conditioner defrosting that the another embodiment of the disclosure provides.
As shown in Fig. 2, the embodiment of the present disclosure provides another control method for air-conditioner defrosting, rate-determining steps master
Include:
S201, air-conditioning booting, are run with heating mode；
In the present embodiment, air-conditioning general user under the conditions of low temperature severe cold weather sets heating mode and opens as present mode
Machine operation.
S202, control open the second heating operation of heating device；
In the embodiments of the present disclosure, heating device is set to the refrigerant outlet tube road of outdoor heat exchanger under heating mode,
It is configured as heating the refrigerant for flowing through the refrigerant outlet tube road.
Optionally, air-conditioning is preset with the configuration informations such as the rate of heat addition of the second heating operation, therefore in step S202, empty
Tune can call preset configuration information, and control according to configuration information and execute the second heating operation；
S203, the suction temperature for obtaining compressor；
S204, judge whether TReturn-air≥TReturn-air threshold value, if so, S205 is thened follow the steps, if it is not, then returning to step
S203；
S205, stop executing the second heating operation；
S206, detection refrigerant go out liquid temperature TLiquid out, compressor accumulated running time timWith outdoor coil temperature Te；
S207, judge whether tim≥tThreshold value, Te≤TSolidifying frost, Temax-Te>=△ T1, and TLiquid out-Te≤ △ T2, if it is, holding
Row step S208, if it is not, then returning to step S206；
In the embodiments of the present disclosure, tim≥tThreshold value, Te≤TSolidifying frost, Temax-Te>=△ T1, and TLiquid out-Te≤ △ T2 is collectively formed
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 S207, 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.
S208, according to tim-tThreshold value, corresponding first rate of heat addition is obtained from first rate incidence relation；
S209, according to tim-tThreshold value, corresponding first heating duration is obtained from the first duration incidence relation；
S210, control enter reverse cycle defrosting mode, and open and add according to first rate of heat addition and the first heating duration
Thermal；
Optionally, heating device is electromagnetic heater, therefore can be by changing electricity to the adjusting of first rate of heat addition
The parameters such as the operating current or voltage of magnetic heating device are realized.
The control method for air-conditioner defrosting that the embodiment of the present disclosure provides can be according to the tired of the compressor acquired
Whether the meter parametric synthesis such as runing time and outdoor coil temperature meet the judgement of defrosting entry condition to air-conditioning, so as to have
Effect improves the control precision to control air-conditioner defrosting；And outdoor heat exchanger is removed using high temperature refrigerant by reverse cycle defrosting mode
Frost, and further increase to flow down against circulation pattern by way of heating the refrigerant for flowing through refrigerant outlet tube road and be changed into outdoor
The refrigerant temperature of hot device can effectively improve the defrosting efficiency to outdoor heat exchanger, accelerate to reduce frost condensation to air-conditioning itself
The adverse effect of heating performance.
4. control method according to claim 3, which is characterized in that determined according to time difference to flowing through refrigerant inlet tube
The rate of heat addition of the refrigerant on road, comprising:
According to time difference, corresponding first rate of heat addition is obtained from first rate incidence relation, to add according to first
Hot rate is heated.
5. control method according to claim 3, which is characterized in that determined according to temperature gap to flowing through refrigerant inlet tube
The rate of heat addition of the refrigerant on road, comprising:
According to the first temperature gap, corresponding second rate of heat addition is obtained from the second rate incidence relation, according to
Two rates of heat addition are heated；Or,
According to second temperature difference, the corresponding third rate of heat addition is obtained from third speed incidence relation, according to
Three rates of heat addition are heated；Or,
According to third temperature gap, corresponding 4th rate of heat addition is obtained from fourth rate incidence relation, according to
Four rates of heat addition are heated.
6. control method according to claim 3, which is characterized in that determined according to time difference to flowing through refrigerant inlet tube
The heating duration of the refrigerant on road, comprising:
According to time difference, corresponding first heating duration is obtained, from the first duration incidence relation to add according to first
Hot duration is heated.
7. control method according to claim 3, which is characterized in that determined according to temperature gap to flowing through refrigerant inlet tube
The heating duration of the refrigerant on road, comprising:
According to the first temperature gap, corresponding second heating duration is obtained from the second duration incidence relation, according to the
Two heating durations are heated；Or,
According to second temperature difference, corresponding third heating duration is obtained from third duration incidence relation, according to the
Three heating durations are heated；Or,
According to third temperature gap, corresponding 4th heating duration is obtained from the 4th duration incidence relation, according to the
Four heating durations are heated.
Fig. 3 is the structural schematic diagram for the control device for air-conditioner defrosting that the embodiment of the present disclosure provides.
The embodiment of the present disclosure provides a kind of control device for air-conditioner defrosting, and structure is as shown in Figure 3, comprising:
Processor (processor) 300 and memory (memory) 301 can also include communication interface
(Communication Interface) 302 and bus 303.Wherein, processor 300, communication interface 302, memory 301 can
To complete mutual communication by bus 303.Communication interface 302 can be used for information transmission.Processor 300 can be called and be deposited
Logical order in reservoir 301, to execute the control method for air-conditioner defrosting of above-described embodiment.
In addition, the logical order in above-mentioned memory 301 can be realized by way of SFU software functional unit and conduct
Independent product when selling or using, can store in a computer readable storage medium.
Memory 301 is used as a kind of computer readable storage medium, can be used for storing software program, journey can be performed in computer
Sequence, such as the corresponding program instruction/module of the method in the embodiment of the present disclosure.Processor 300 is stored in memory 301 by operation
In program instruction/module, thereby executing functional application and data processing, i.e., in realization above method embodiment for sky
Adjust the control method of defrosting.
Memory 301 may include storing program area and storage data area, wherein storing program area can storage program area,
Application program needed at least one function；Storage data area, which can be stored, uses created data etc. according to terminal device.
In addition, memory 301 may include high-speed random access memory, it can also include nonvolatile memory.
Fig. 4 is the structural schematic diagram for the air-conditioning that the embodiment of the present disclosure provides.
As shown in figure 4, disclosure implementation additionally provides a kind of air-conditioning, comprising:
Refrigerant circulation circuit passes through refrigerant by outdoor heat exchanger 41, indoor heat exchanger 42, throttling set 43 and compressor 44
Piping connection is constituted；
Heating device 45 is set to the refrigerant outlet tube road of outdoor heat exchanger 41 in a heating mode, is configured as pair
The refrigerant for flowing through refrigerant outlet tube road is heated；
For the control device 46 of air-conditioner defrosting, it is electrically connected with heating device 45.Here, the control for being used for air-conditioner defrosting
Device is control device shown in embodiment above.
Air-conditioning in the embodiment of the present disclosure can be detected accurately and judge that air-conditioning whether there is frosting problem, and in sky
In the case that tune has frosting, corresponding defrosting operation is carried out using above-mentioned control device and heating device, to reduce
The frost amount condensed on outdoor heat exchanger of air conditioner guarantees that air-conditioning can be normally to indoor environment system under the conditions of low temperature harsh climate
Heat promotes the usage experience of user.
The embodiment of the present disclosure additionally provides a kind of computer readable storage medium, is stored with computer executable instructions, meter
Calculation machine executable instruction 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 computer program product includes being stored in computer
Computer program on readable storage medium storing program for executing, computer program include program instruction, when program instruction is computer-executed, are made
Computer executes 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 (11)
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 enters inverse circulation
Defrosting mode and the first heating operation for executing the refrigerant to the refrigerant outlet tube road for the outdoor heat exchanger for flowing through the air-conditioning.
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, and TLiquid out-Te≤△T2；
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, and △ T1 is preset first temperature difference threshold, and △ T2 is preset second temperature difference threshold.
3. control method according to claim 2, which is characterized in that the heating parameters of first heating operation according to when
Between difference or temperature gap determine；
Wherein, the time difference includes: the time difference between the accumulated running time of the compressor and the time threshold
Value；
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, alternatively, the refrigerant goes out liquid temperature
Third temperature gap between the outdoor coil temperature；
The heating parameters include the rate of heat addition and/or heating duration of first heating operation.
4. control method according to claim 3, which is characterized in that described cold to flowing through according to time difference determination
The rate of heat addition of the refrigerant of matchmaker's 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.
5. control method according to claim 3, which is characterized in that according to temperature gap determine to flow through the refrigerant into
The rate of heat addition of the refrigerant of liquid pipeline, comprising:
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.
6. control method according to claim 3, which is characterized in that described cold to flowing through according to time difference determination
The heating duration of the refrigerant of matchmaker's 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.
7. control method according to claim 3, which is characterized in that according to temperature gap determine to flow through the refrigerant into
The heating duration of the refrigerant of liquid pipeline, comprising:
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.
8. control method according to any one of claims 1 to 7, which is characterized in that further include:
After the air-conditioning is with heating mode booting, control executes the refrigerant for the outdoor heat exchanger for flowing through the air-conditioning
Second heating operation of the refrigerant of liquid pipeline.
9. control method according to claim 8, which is characterized in that after control executes the second heating operation, further includes:
Obtain the suction temperature of the compressor of the air-conditioning；
When the suction temperature of the compressor meets preset temperature condition, control stops second heating operation；
Wherein, the temperature condition includes: that suction temperature is greater than or equal to preset suction temperature threshold value.
10. 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 described in any one of claim 1 to 9 be used for when executing described program instruction
The control method of air-conditioner defrosting.
11. a kind of air-conditioning characterized by comprising
Refrigerant circulation circuit connects structure by refrigerant pipeline by outdoor heat exchanger, indoor heat exchanger, throttling set and compressor
At；
Heating device is set to the outdoor heat exchanger on the refrigerant outlet tube road under the heating mode, is configured as pair
The refrigerant for flowing through refrigerant outlet tube road is heated；
The control device as claimed in claim 10 for being used for air-conditioner defrosting, is electrically connected with the heating device.
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| CN114484745A (en) * | 2022-03-01 | 2022-05-13 | 青岛海尔空调器有限总公司 | Control method and control system for defrosting of air conditioner, electronic equipment and storage medium |
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