CN110107987A - Outdoor unit defrosting control method, outdoor unit defrosting control device and air conditioner - Google Patents
Outdoor unit defrosting control method, outdoor unit defrosting control device and air conditioner Download PDFInfo
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- 238000010257 thawing Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000010438 heat treatment Methods 0.000 claims abstract description 133
- 238000004378 air conditioning Methods 0.000 claims abstract description 79
- 238000001514 detection method Methods 0.000 claims abstract description 42
- 238000007664 blowing Methods 0.000 claims abstract description 14
- 230000036961 partial effect Effects 0.000 claims description 17
- 230000015654 memory Effects 0.000 claims description 9
- 238000007791 dehumidification Methods 0.000 claims description 5
- 238000005057 refrigeration Methods 0.000 claims description 5
- 241000208340 Araliaceae Species 0.000 claims description 3
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims description 3
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 3
- 235000008434 ginseng Nutrition 0.000 claims description 3
- 230000002829 reductive effect Effects 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 3
- 230000003044 adaptive effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 230000006870 function Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000010354 integration Effects 0.000 description 5
- 206010037660 Pyrexia Diseases 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 241001138768 Amphibolia Species 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
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- 239000003245 coal Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002699 waste material Substances 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
-
- 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
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application relates to an outdoor unit defrosting control method, an outdoor unit defrosting control device and an air conditioner, and belongs to the technical field of outdoor unit defrosting. The method of the present application comprises: acquiring an air conditioner running mode, and acquiring detection parameters when the air conditioner is in a heating mode; determining the frosting condition of the heat exchanger of the outdoor unit according to the heating mode and the detection parameters; and according to the determined frosting condition, selectively controlling the defrosting mode of the outdoor unit, wherein the defrosting mode of the outdoor unit comprises the following steps: the first defrost mode includes: the heating module generates heat, and the heat generated by the heating module is blown to the heat exchanger of the outdoor unit by the blowing device to defrost; and a second defrost mode comprising: and defrosting is performed by reversing through the four-way valve. According to the defrosting method and the defrosting device, any defrosting mode is not selected when no frost exists, and the adaptive defrosting mode is selected according to the change of the frosting degree when frost exists, so that the respective advantages of the two defrosting modes are exerted, the influence of defrosting on the operation of an air conditioning system is reduced, and the comprehensive capacity energy efficiency of the whole machine is improved.
Description
Technical field
The application belongs to outdoor unit Defrost technology field, and in particular to outdoor unit defrosting control method, outdoor unit defrosting control
Device and air-conditioning processed.
Background technique
The energy of the consumption of heating at present occupies larger proportion in global energy consumption, with the representative such as combustion gas, fire coal, electric power
Traditional heating modes because low efficiency, the problems such as pollution is big, sustainability is poor are gradually denounced by the public.Greatly develop new energy
Source pushes production of energy and consumption revolution to become whole world common recognition, and heat pump heating is environmental-friendly, Energy Efficiency Ratio is high, install convenient is beautiful,
Many countries put into effect relevant policies regulation and encourage guidance development heat pump heating in recent years.
However heat pump heating is not used in global large area as expected, is traced it to its cause in cold district and severe cold area
The problems such as heating capacity decaying of appearance is big, heat efficiency is greatly reduced, frequent frosting defrost thermal comfort is poor limits heat pump sky
The popularization and use of tune.
Wherein pressing down white defrosting problem is one of key technology of heat pump air conditioner, in the related technology, is had using following defrosting
Mode defrosts: heating module is arranged in outdoor unit heat exchanger upstream, is generated heat by heating module and is incited somebody to action by blowing device
The heat that heating module issues, which is blown on outdoor unit heat exchanger, to carry out inhibiting frosting or defrost.But itself the problem is that,
Arid Area frosting frequency is slow, and frosting thickness is low, continue heat is blown on outdoor unit heat exchanger carry out heating defrost be likely to
Into frostless defrost, wasted work is obvious, and it is bigger than normal to even result in suction superheat, and compressor load increases, and reduces system reliability.
And in moist environment, on outdoor unit heat exchanger, frost layer degradating trend is very fast, and heat, which is blown to, carries out defrost on outdoor unit heat exchanger
Frosting rate, or the condenser in only heating module region can not be inhibited to have defrosting situation, remaining region frost layer is got deeper, whole
Body return air deterioration of efficiency influences outer machine evaporation effect, eventually leads to the problems such as heating capacity is insufficient, compressor returns liquid.
Thus, there are improved demands on outdoor unit Defrost mode.
Summary of the invention
To be overcome the problems, such as present in the relevant technologies at least to a certain extent, the application provides outdoor unit defrosting controlling party
Method, outdoor unit defrosting control device and air-conditioning help to reduce the influence that defrosting runs air-conditioning system, improve the comprehensive energy of complete machine
Power efficiency.
In order to achieve the above object, the application adopts the following technical scheme that
In a first aspect,
The application provides a kind of outdoor unit defrosting control method, comprising:
The mode of operation of air conditioner is obtained, and when the mode of operation of air conditioner is heating mode, obtains detection parameters；
The frosting situation of outdoor unit heat exchanger is determined according to the heating mode and the detection parameters；
According to the frosting situation for the outdoor unit heat exchanger determined, selection control, institute are carried out to the Defrost mode of outdoor unit
The Defrost mode for stating outdoor unit includes: the first Defrost mode, comprising: is generated heat by heating module and passes through blowing device for institute
The heat for stating heating module sending, which is blown on outdoor unit heat exchanger, to defrost；And second Defrost mode, comprising: pass through four
Port valve commutation defrosts.
Further, the acquisition detection parameters, comprising:
Parameter detected by the sensor of air-conditioning itself configuration is obtained, and/or,
Obtain the detection parameters that external equipment is sent.
Further, the detection parameters include: outdoor unit heat exchanger tube temperature and outdoor environment temperature；
The frosting situation that outdoor unit heat exchanger is determined according to the heating mode and the detection parameters, comprising:
According to the heating mode and the temperature difference of the outdoor unit heat exchanger tube temperature and the outdoor environment temperature, really
Determine the frosting situation of outdoor unit heat exchanger.
Further, described according to the heating mode and the outdoor unit heat exchanger tube temperature and the outdoor environment
The temperature difference between temperature determines the frosting situation of outdoor unit heat exchanger, comprising:
When air-conditioning enters heating mode operation, the frosting situation of outdoor unit heat exchanger is determined as non-frosting；
According to the accessed outdoor environment temperature and the outdoor unit heat exchanger tube temperature, the outdoor is calculated
The temperature difference between environment temperature and the outdoor unit heat exchanger tube temperature；
If the temperature difference between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature is full in the first duration
Sufficient first condition, it is determined that the frosting situation of outdoor unit heat exchanger is slight frosting, wherein the first condition is to determine outdoor
The frosting situation of machine heat exchanger is the condition of slight frosting；Alternatively,
If the temperature difference between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature is full in the second duration
Sufficient second condition, it is determined that the frosting situation of outdoor unit heat exchanger is moderate frosting, wherein the second condition is to determine outdoor
The frosting situation of machine heat exchanger is the condition of moderate frosting；Alternatively,
If the temperature difference between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature is full in third duration
Sufficient third condition, it is determined that the frosting situation of outdoor unit heat exchanger is serious frosting, wherein the third condition is to determine outdoor
The frosting situation of machine heat exchanger is the condition of serious frosting；
Wherein, first duration, second duration and the third duration are pre-set.
Further, the method also includes:
When air-conditioning heating mode continuous service reaches four durations, according to the accessed outdoor environment temperature and
The outdoor unit heat exchanger tube temperature is calculated air-conditioning heating mode continuous service and reaches accessed when four duration
Temperature difference δ T between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature1, wherein the 4th duration can characterize
Air-conditioning heating mode, which enters on stable operation and outdoor unit heat exchanger, does not have frosting；
According to temperature difference δ T1Obtain the first condition: δ T1+X1≤δT2< δ T1+X2；
According to temperature difference δ T1Obtain the second condition: δ T1+X2≤δT3< δ T1+X3；And
According to temperature difference δ T1Obtain the third condition: δ T1+X3≤δT4；
Wherein,
δT2It is the temperature in first duration, between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature
Difference；
δT3It is the temperature in second duration, between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature
Difference；
δT4It is the temperature in the third duration, between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature
Difference；
Wherein, X1、X2And X3Respectively preset defrosting correction-compensation value, and X1< X2< X3。
Further, the 4th duration is pre-set；Or
Since the air-conditioning heating mode operation, according to the accessed outdoor environment temperature and the outdoor unit
The temperature difference between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature is calculated in heat exchanger tube temperature；
If determining the temperature between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature in the 5th duration
Difference remains unchanged, then will determine that the temperature difference between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature remains unchanged
When, the continuous service duration of air-conditioning heating mode is as the 4th duration；
Wherein, the 5th duration is pre-set.
Further, the frosting situation for the outdoor radiator that the basis is determined, selects the Defrost mode
Control, comprising:
If it is determined that the frosting situation of outdoor radiator is non-frosting, then the various defrosting sides of the air-conditioner outdoor unit are controlled
Formula is not run；Alternatively,
If it is determined that the frosting situation of outdoor radiator is slight frosting, then the first Defrost mode operation is only controlled,
And the control heating module is generated heat with Partial Power；Alternatively,
If it is determined that the frosting situation of outdoor radiator is moderate frosting, then the first Defrost mode operation is only controlled,
And the control heating module is generated heat with total power；Alternatively,
If it is determined that the frosting situation of outdoor radiator is serious frosting, then the second Defrost mode fortune is at least controlled
Row.
Further, described only to control the first Defrost mode operation, and the heating module is controlled with Partial Power
Fever, comprising:
Determine the concrete condition of slight frosting；
According to the concrete condition for the slight frosting determined, the specific shelves that the heating module is generated heat with Partial Power are determined
Position, wherein the heating module has a variety of gears with Partial Power adstante febre.
Further, the concrete condition of the slight frosting of the determination, comprising:
Temperature difference when according to slight frosting between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature determines light
The concrete condition of micro- frosting.
Further, at least control four-way valve commutation defrosts, comprising:
Only control the second Defrost mode operation；Alternatively,
It controls first Defrost mode and second Defrost mode is operated together.
Further, the method also includes:
The duration of air-conditioning heating mode operation is obtained, and when reaching six durations, control four-way valve commutation carries out
Defrosting.
Further, the method also includes:
If the mode of the operation of air conditioner got is refrigeration mode, dehumidification mode or air supply pattern, described in control
The various Defrost modes of air-conditioner outdoor unit are not run.
Second aspect,
The application provides a kind of outdoor unit defrosting control device, comprising:
Module is obtained, for obtaining the mode of operation of air conditioner, and when the mode of operation of air conditioner is heating mode, obtains inspection
Survey parameter；
Determining module, for determining the frosting feelings of outdoor unit heat exchanger according to the heating mode and the detection parameters
Condition；
Control module is selected, for the frosting situation according to the outdoor unit heat exchanger determined, to the defrosting side of outdoor unit
Formula carries out selection control, and the Defrost mode of the outdoor unit includes: the first Defrost mode, comprising: by heating module fever, simultaneously
The heat that the heating module issues is blown on outdoor unit heat exchanger by blowing device and is defrosted；And second defrosting
Mode, comprising: defrosted by four-way valve commutation.
The third aspect,
The application provides a kind of air-conditioning, comprising:
One or more memories, for storing program；And
One or more processors, for executing the program stored in the memory, to execute such as any of the above-described institute
The method stated.
Further, the air-conditioning includes: heat pump air conditioner.
The application use above technical scheme, at least have it is following the utility model has the advantages that
The application passes through the specific frosting situation for determining outdoor unit heat exchanger, blows being generated heat and being passed through by heating module
The heat that the heating module issues is blown on outdoor unit heat exchanger and is defrosted by wind apparatus, and is commutated and carried out by four-way valve
Defrost both Defrost modes, can carry out suitability selection control, not select any Defrost mode to remove when helping to realize frostless
Both frost, when there is frost, according to the difference of frosting degree, to play two kinds of respective advantages of Defrost mode, reduce or avoid
The influence that respective disadvantage runs air-conditioning system carries out suitability selection to require, to two kinds of Defrost modes, to realize reduction
Defrost the influence run to air-conditioning system, improves complete machine integration capability efficiency.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The application can be limited.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the flow diagram for the outdoor unit defrosting control method that the application one embodiment provides；
Fig. 2 is the flow diagram for the outdoor unit defrosting control method that another embodiment of the application provides；
Fig. 3 is the structural schematic diagram for the outdoor unit defrosting control device that the application one embodiment provides；
Fig. 4 is the structural schematic diagram for the air-conditioning that the application one embodiment provides.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, the technical solution of the application will be carried out below
Detailed description.Obviously, described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Base
Embodiment in the application, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the application is protected.
Fig. 1 is the flow diagram for the outdoor unit defrosting control method that the application one embodiment provides, as shown in Figure 1,
The outdoor unit defrosting control method includes the following steps:
Step S11, the mode of operation of air conditioner is obtained, and when the mode of operation of air conditioner is heating mode, obtains detection ginseng
Number；
Step S12, the frosting situation of outdoor unit heat exchanger is determined according to the heating mode and the detection parameters；
Step S13, according to the frosting situation for the outdoor unit heat exchanger determined, the Defrost mode of outdoor unit is selected
Control, the Defrost mode of the outdoor unit includes: the first Defrost mode, comprising: is generated heat by heating module and passes through blowing dress
It sets to blow to the heat that the heating module issues on outdoor unit heat exchanger and defrost；And second Defrost mode, comprising:
It is defrosted by four-way valve commutation.
In practical application scene, by taking air energy heat pump air-conditioning as an example, when being heated to room, outdoor unit heat exchanger
Absorb outside air heat, the practical frosting situation of outdoor unit heat exchanger can there are many situation, for example, non-frosting, slight frosting,
Moderate frosting or serious frosting.
Scheme through the foregoing embodiment, the application in a heating mode, in conjunction with detection parameters, determine outdoor unit heat exchanger
Specific frosting situation, to the Defrost mode of outdoor unit --- to being generated heat by heating module and pass through blowing device for the hair
The heat that thermal modules issue, which is blown on outdoor unit heat exchanger, to carry out defrosting and is defrosted by four-way valve commutation, can be adapted to
Property selection control, do not select any Defrost mode to defrost when helping to realize frostless, when there is frost, not according to frosting degree
Together, to play two kinds of respective advantages of Defrost mode, reduce or avoid the two influence that respectively disadvantage runs air-conditioning system
To require, suitability selection is carried out to two kinds of Defrost modes, the influence that defrosting runs air-conditioning system is reduced to realize, improves
Complete machine integration capability efficiency.
Further, the method also includes:
If the mode of the operation of air conditioner got is refrigeration mode, dehumidification mode or air supply pattern, described in control
The various Defrost modes of air-conditioner outdoor unit are not run.
In practical applications, under refrigeration mode or dehumidification mode, the outside heat release of outdoor heat exchanger；It is outdoor under air supply pattern
Machine does not work, and outdoor heat exchanger does not need to defrost without heat exchange, when the mode of operation of air conditioner is above-mentioned three kinds of moulds
When formula, needs to control various Defrost modes and do not run.
It is following that above-described embodiment scheme is illustrated by further embodiment.
In one embodiment, the detection parameters include: outdoor unit heat exchanger tube temperature and outdoor environment temperature；
The frosting situation that outdoor unit heat exchanger is determined according to the heating mode and the detection parameters, comprising:
According to the heating mode and the temperature difference of the outdoor unit heat exchanger tube temperature and the outdoor environment temperature, really
Determine the frosting situation of outdoor unit heat exchanger.
Above-described embodiment scheme, by taking detection parameters are using outdoor unit heat exchanger tube temperature and outdoor environment temperature as an example, according to
The temperature difference between heating mode, outdoor unit heat exchanger tube temperature and outdoor environment temperature determines the frosting feelings of outdoor unit heat exchanger
Condition.In practical applications, air-conditioning is opened in the postrun certain time length of heating mode, and outdoor unit heat exchanger is non-frosting, because
And the frosting situation of outdoor unit heat exchanger can be determined as non-frosting when air-conditioning enters heating mode operation.In outdoor unit
When heat exchanger frosting, the temperature difference of outdoor unit heat exchanger tube temperature and outdoor environment temperature changes, according to the situation of change of the temperature difference
The case where being capable of determining that the frosting of outdoor unit heat exchanger.
It is described according to the heating mode and the outdoor unit heat exchanger tube temperature and described in a specific example
The temperature difference of outdoor environment temperature determines the frosting situation of outdoor unit heat exchanger, comprising:
When air-conditioning enters heating mode operation, the frosting situation of outdoor unit heat exchanger is determined as non-frosting；
According to the accessed outdoor environment temperature and the outdoor unit heat exchanger tube temperature, the outdoor is calculated
The temperature difference between environment temperature and the outdoor unit heat exchanger tube temperature；
If the temperature difference between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature is full in the first duration
Sufficient first condition, it is determined that the frosting situation of outdoor unit heat exchanger is slight frosting, wherein the first condition is to determine outdoor
The frosting situation of machine heat exchanger is the condition of slight frosting；Alternatively,
If the temperature difference between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature is full in the second duration
Sufficient second condition, it is determined that the frosting situation of outdoor unit heat exchanger is moderate frosting, wherein the second condition is to determine outdoor
The frosting situation of machine heat exchanger is the condition of moderate frosting；Alternatively,
If the temperature difference between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature is full in third duration
Sufficient third condition, it is determined that the frosting situation of outdoor unit heat exchanger is serious frosting, wherein the third condition is to determine outdoor
The frosting situation of machine heat exchanger is the condition of serious frosting；
Wherein, first duration, second duration and the third duration are pre-set.
Above-described embodiment scheme, by taking detection parameters are using outdoor unit heat exchanger tube temperature and outdoor environment temperature as an example, according to
The temperature difference between heating mode, outdoor unit heat exchanger tube temperature and outdoor environment temperature determines the frosting feelings of outdoor unit heat exchanger
Condition: non-frosting, slight frosting, moderate frosting or serious frosting.
In practical application, air-conditioning is opened in the postrun certain time length of heating mode, and outdoor unit heat exchanger is non-frosting,
Therefore, it is possible to which the frosting situation of outdoor unit heat exchanger is determined as non-frosting when air-conditioning enters heating mode operation.
The incipient stage of air-conditioning heating mode operation, because air-conditioning system heating operation is also unstable, outdoor unit heat exchanger pipe
Temperature is to be gradually reduced, although the stage, the temperature difference changes between outdoor unit heat exchanger tube temperature and outdoor environment temperature, room
Outer machine heat exchanger does not have frosting, outdoor in the case where outdoor unit heat exchanger non-frosting after air-conditioning system heating operation is stablized
The temperature difference remains unchanged between machine heat exchanger tube temperature and outdoor environment temperature.
When outdoor unit heat exchanger starts frosting, outdoor unit heat exchanger tube temperature will start to reduce, outdoor unit heat exchanger pipe
The temperature difference will be gradually increased between temperature and outdoor environment temperature.At this point, by the first duration, outdoor environment temperature and outdoor unit
The temperature difference between heat exchanger tube temperature is all satisfied first condition, to determine that the frosting situation of outdoor unit heat exchanger is slight frosting.
With in the first duration, the temperature difference between outdoor environment temperature and outdoor unit heat exchanger tube temperature is all satisfied first condition, Ke Yiti
Rise the accuracy being determined to slight frosting.If meeting the first condition moment in the temperature difference, determine that it is slight frosting, then
It is possible that quickly happens is that because environment variation, slight frosting situation may disappear again, it is seen that it is actual it may be the case that
Slight frosting is in amphibolia.In a particular application, first duration can with determine slight frosting stablize have occurred for
With reference to determine a suitable numerical value.
In practical applications, if frosting rate is very fast, frost layer can constantly thicken, outer machine return air deterioration of efficiency, evaporation effect
Worse and worse, compressor air suction amount significantly reduces fruit, causes outdoor unit heat exchanger tube temperature to reduce amplitude and becomes larger, outdoor environment temperature
The temperature difference between outdoor unit heat exchanger tube temperature also obviously becomes larger.At this point, by the second duration, outdoor environment temperature and room
The temperature difference between outer machine heat exchanger tube temperature is all satisfied second condition, to determine that the frosting situation of outdoor unit heat exchanger is moderate knot
Frost.Similarly, in the second duration, the temperature difference between outdoor environment temperature and outdoor unit heat exchanger tube temperature is all satisfied Article 2
Part can promote the accuracy being determined to moderate frosting.If meeting the second condition moment in the temperature difference, determine that it is moderate
Frosting, be possible subsequently to quickly happens is that because environment variation, moderate frosting situation may disappear again, it is seen that actual feelings
Condition may be that moderate frosting is in amphibolia.In a particular application, which can be to determine that moderate frosting is stablized
It has occurred to refer to, to determine a suitable numerical value.
In practical applications, if the quickening of frosting rate, if frost layer has been accumulated to certain thickness, the outer big face of machine condenser
Product region can not return air, the temperature difference between outdoor environment temperature and outdoor unit heat exchanger tube temperature increases to certain value and keeps phase at this time
To stabilization.
At this point, the temperature difference between outdoor environment temperature and outdoor unit heat exchanger tube temperature is all satisfied by third duration
Third condition, to determine that the frosting situation of outdoor unit heat exchanger is serious frosting.Similarly, outdoor in third duration
The temperature difference between environment temperature and outdoor unit heat exchanger tube temperature is all satisfied third condition, can be promoted and is determined to serious frosting
Accuracy.If meeting the third condition moment in the temperature difference, determine that it is serious frosting, be possible subsequently to quickly happens is that because
The variation of environment, serious frosting situation may disappear again, it is seen that actual it may be the case that serious frosting is in amphibolia.
In a particular application, which can be had occurred with determining that serious frosting is stablized as reference, come determine one it is suitable
Numerical value.
In one embodiment, the acquisition detection parameters, comprising:
Parameter detected by the sensor of air-conditioning itself configuration is obtained, and/or,
Obtain the detection parameters that external equipment is sent.
Above-described embodiment gives several example schemes for obtaining detection parameters, and one is obtain air-conditioning itself configuration
Sensor detected by parameter, in practical applications, air-conditioning can detect to obtain by the sensor of itself integrated configuration
Detection parameters；Another kind is can to obtain detection parameters by external equipment, by user setting, air-conditioning and outside are set
Standby establish is wirelessly connected, and air-conditioning can obtain the detection parameters of air detection instrument external equipment transmission at any time；The third is to detect
Parameter a part is detected to obtain by the sensor that air-conditioning itself configures, and another part is sent to obtain by external equipment.
For example, in practical applications, air-conditioning can pass through the sensor of the detection outdoor environment temperature of itself integrated configuration
To detect to obtain outdoor environment temperature, and by the sensor of the detection outdoor unit heat exchanger tube temperature of integrated configuration detect to obtain
Outdoor unit heat exchanger tube temperature.Alternatively, air-conditioning can be examined by the sensor of the detection outdoor unit heat exchanger tube temperature of integrated configuration
Outdoor unit heat exchanger tube temperature is measured, by user setting, air-conditioning and intelligent terminal is established and are wirelessly connected, the intelligent terminal is logical
It crosses network and obtains local outdoor environment temperature, and be sent to air-conditioning, so that air-conditioning gets outdoor environment temperature.
In above-mentioned related embodiment, first condition, second condition and third condition are the conditions in terms of the temperature difference, in applied field
In the metastable situation of scape environment, the specific threshold parameter condition set in air-conditioning in advance can be, still, in reality
In, because the influence factor of outdoor unit heat exchanger frosting is more, for example, the influence of humidity, under different humidity environment, outdoor unit
When heat exchanger starts frosting, the temperature difference between outdoor environment temperature and outdoor unit heat exchanger tube temperature has certain otherness, because
And if first condition, second condition and third condition are the specific threshold parameter conditions set in air-conditioning in advance, having can
Can not have universality.
In this regard, the application provides a kind of following specific embodiment.
In one embodiment, the method also includes:
When air-conditioning heating mode continuous service reaches four durations, according to the accessed outdoor environment temperature and
The outdoor unit heat exchanger tube temperature is calculated air-conditioning heating mode continuous service and reaches accessed when four duration
Temperature difference δ between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature
T1, wherein the 4th duration can characterize air-conditioning heating mode and enter on stable operation and outdoor unit heat exchanger
There is no frosting；
According to temperature difference δ T1Obtain the first condition: δ T1+X1≤δT2< δ T1+X2；
According to temperature difference δ T1Obtain the second condition: δ T1+X2≤δT3< δ T1+X3；And
According to temperature difference δ T1Obtain the third condition: δ T1+X3≤δT4；
Wherein,
δT2It is the temperature in first duration, between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature
Difference；
δT3It is the temperature in second duration, between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature
Difference；
δT4It is the temperature in the third duration, between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature
Difference；
Wherein, X1、X2And X3Respectively preset defrosting correction-compensation value, and X1< X2< X3。
The incipient stage of air-conditioning heating mode operation, because air-conditioning system heating operation is also unstable, outdoor unit heat exchanger pipe
Temperature is to be gradually reduced, although the temperature difference changes between the stage outdoor unit heat exchanger tube temperature and outdoor environment temperature, room
Outer machine heat exchanger does not have frosting, outdoor in the case where outdoor unit heat exchanger non-frosting after air-conditioning system heating operation is stablized
The temperature difference remains unchanged between machine heat exchanger tube temperature and outdoor environment temperature.Thus, in the case where outdoor unit heat exchanger non-frosting,
It is obtained by specific application environment scene when the temperature difference remains unchanged between outdoor unit heat exchanger tube temperature and outdoor environment temperature
The temperature difference obtains above-mentioned specific first condition, second condition and third condition, so that first condition, second condition and Article 3
Part is suitable for corresponding application environment scene, to make first condition, second condition and third condition with more universality.
In one embodiment, the 4th duration is pre-set；In a particular application, the 4th duration can be with
In the case where with the non-frosting of outdoor unit heat exchanger, between outdoor unit heat exchanger tube temperature and outdoor environment temperature the temperature difference remain unchanged for
With reference to determine a suitable numerical value.
In another embodiment, since the air-conditioning heating mode operation, according to the accessed outdoor ring
Border temperature and the outdoor unit heat exchanger tube temperature, be calculated the outdoor environment temperature and the outdoor unit heat exchanger tube temperature it
Between the temperature difference；
If determining the temperature between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature in the 5th duration
Difference remains unchanged, then will determine that the temperature difference between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature remains unchanged
When, the continuous service duration of air-conditioning heating mode is as the 4th duration；
Wherein, the 5th duration is pre-set.
It by the example scheme, is determining in the 5th duration, if outdoor environment temperature and outdoor unit heat exchanger
The temperature difference between tube temperature remains unchanged, i.e., the continuous service duration of the air-conditioning heating mode when temperature difference being determined constant is as
Four durations.The practical feelings remained unchanged according to the temperature difference between outdoor environment temperature and outdoor unit heat exchanger tube temperature may be implemented
Condition, to determine the 4th duration.
For the 5th duration, a suitable numerical value can be set according to actual needs, for example, the 5th duration is arranged
It is 30 seconds.
Above-mentioned related embodiment scheme, by taking detection parameters are using outdoor unit heat exchanger tube temperature and outdoor environment temperature as an example,
In a heating mode, in conjunction with the temperature difference between outdoor unit heat exchanger tube temperature and outdoor environment temperature, outdoor unit heat exchanger is determined
Frosting situation.For determining the detection parameters of outdoor heat exchanger frosting, it can also be other parameters, for example, passing through outdoor ring
Border temperature and outside humidity can also determine the frosting situation of outdoor unit heat exchanger.
It is given according to the above-mentioned non-frosting determined, slight frosting, moderate frosting or serious frosting, the application to defrosting
Mode carries out the scheme of compatible selection control.
In one embodiment, the frosting situation for the outdoor radiator that the basis is determined, to the Defrost mode into
Row selection control, comprising:
If it is determined that the frosting situation of outdoor radiator is non-frosting, then the various defrosting sides of the air-conditioner outdoor unit are controlled
Formula is not run；Alternatively,
If it is determined that the frosting situation of outdoor radiator is slight frosting, then the first Defrost mode operation is only controlled,
And the control heating module is generated heat with Partial Power；Alternatively,
If it is determined that the frosting situation of outdoor radiator is moderate frosting, then the first Defrost mode operation is only controlled,
And the control heating module is generated heat with total power；Alternatively,
If it is determined that the frosting situation of outdoor radiator is serious frosting, then the second Defrost mode fortune is at least controlled
Row.
Further, at least control four-way valve commutation defrosts, comprising:
Only control the second Defrost mode operation；Alternatively,
It controls first Defrost mode and second Defrost mode is operated together.
Scheme through the foregoing embodiment does not select any Defrost mode to defrost, defrosting when avoiding frostless when being able to achieve frostless
So that outdoor unit heat exchanger temperature rises, lead to the waste of energy, in some instances it may even be possible to cause suction superheat bigger than normal, compressor load
Increase, reduces system reliability.
When there is frost, according to the difference of frosting degree, to generated heat by heating module and pass through blowing device will be described
The heat that heating module issues, which is blown on outdoor unit heat exchanger, to carry out defrosting and carries out two kinds of defrostings of defrosting by four-way valve commutation
In mode, compatible Defrost mode is selected to be controlled, it can be achieved that generating heat by heating module and inciting somebody to action by blowing device
The heat that the heating module issues, which is blown on outdoor unit heat exchanger, to carry out defrosting and carries out defrosting this to by four-way valve commutation
The alternate selection of two kinds of Defrost modes plays two kinds of respective advantages of Defrost mode, reduces or avoid the two respectively disadvantage pair
The influence of air-conditioning system operation reduces the influence that defrosting runs air-conditioning system to realize, improves complete machine integration capability efficiency,
It embodies as follows:
In slight frosting or moderate frosting, only selection is generated heat by heating module and passes through blowing device for the hair
The heat that thermal modules issue, which is blown on outdoor unit heat exchanger, to defrost, which can guarantee effectively to defrost, and simultaneously should
Defrost mode is Defrost mode in a heating mode, can guarantee that room temperature is stablized, and while realizing defrosting, is mentioned
High evaporating temperature reduces inspiratory volume, lifting system integration capability efficiency.And non-selected commutated by four-way valve is defrosted,
When can avoid passing through four-way valve commutation defrosting, because outdoor heat exchanger becomes heat release, and indoor heat exchanger becomes to absorb heat, and leads to room
Interior temperature fluctuation changes greatly the generation of problem, and then influences comfort.
In serious frosting, selection commutates at least through four-way valve and defrosts, can generate heat to avoid single pass heating module,
And the heat that the heating module issues is blown on outdoor unit heat exchanger by blowing device and is defrosted, in face of serious knot
When white, existing following shortcoming --- in serious frosting, frost layer degradating trend is very fast on outdoor unit heat exchanger, and heat is blown
Defrost is carried out on to outdoor unit heat exchanger can not inhibit frosting rate, or the region condenser of only heating module face to have defrosting
Situation, remaining region frost layer are got deeper, and whole return air deterioration of efficiency influences outer machine evaporation effect, eventually leads to heating capacity not
The problems such as foot, compressor return liquid.
Scheme through the foregoing embodiment is defrosted, just selection passes through only when frosting is more serious by four-way valve commutation
Four-way valve commutation defrosts, on the one hand, when frosting is more serious, is defrosted by four-way valve commutation, has and preferably remove
White effect, on the other hand, when frosting is more serious, just selection is defrosted by four-way valve commutation, helps to select to pass through
The probability that four-way valve commutation defrosts is controlled in lower state, makes the Defrost mode only under some rugged environment factors
It is just selected, and then facilitates the biggish adverse effect of temperature fluctuation in room caused by defrosting by four-way valve commutation and control
In lower degree.
It when frosting is more serious, is selecting two kinds of Defrost modes to defrost jointly, can accelerate defrosting effect, and then can be into
One step is reduced through the biggish adverse effect of temperature fluctuation in room caused by four-way valve commutation defrosting.
The case where for the above-mentioned slight frosting referred to, gives following further embodiment scheme in the application.
In one embodiment, described only to control the first Defrost mode operation, and the heating module is controlled with portion
Divide power fever, comprising:
Determine the concrete condition of slight frosting；
According to the concrete condition for the slight frosting determined, the specific shelves that the heating module is generated heat with Partial Power are determined
Position, wherein the heating module has a variety of gears with Partial Power adstante febre.
For example, heating module total power adstante febre, the total power are 1000W, with Partial Power adstante febre, have 800W,
Slight frosting can be further divided into three kinds of specific feelings by frosting degree by tri- gears of 600W and 400W from high to low
Condition, it is high slight, in it is slight and low slight, respectively correspond with Partial Power adstante febre, tri- gears of 800W, 600W and 400W.Such as
What fruit was determined be it is low slight, then with 400W, this gear generates heat.
By the example scheme, may be implemented to be sent out according to the target load demand of defrosting to control heating module
Heat, and then improve complete machine integration capability efficiency.
In one embodiment, the concrete condition of the slight frosting of the determination, comprising:
Temperature difference when according to slight frosting between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature determines light
The concrete condition of micro- frosting.
Above-described embodiment scheme in practical applications, for example, outdoor environment temperature and outdoor unit are changed in slight frosting
The temperature difference between hot device tube temperature is descending to mark off three interval ranges, corresponding above-mentioned height is slight, in it is slight and low slight
Three kinds of concrete conditions.
Fig. 2 is the flow diagram for the outdoor unit defrosting control method that another embodiment of the application provides, such as Fig. 2 institute
Show, which includes the following steps:
Step S21, the mode of operation of air conditioner is obtained, and when the mode of operation of air conditioner is heating mode, obtains detection ginseng
Number；
Step S22, the frosting situation of outdoor unit heat exchanger is determined according to the heating mode and the detection parameters；
Step S23, according to the frosting situation for the outdoor unit heat exchanger determined, the Defrost mode of outdoor unit is selected
Control, the Defrost mode of the outdoor unit includes: the first Defrost mode, comprising: is generated heat by heating module and passes through blowing dress
It sets to blow to the heat that the heating module issues on outdoor unit heat exchanger and defrost；And second Defrost mode, comprising:
It is defrosted by four-way valve commutation；
Step S24, the duration of air-conditioning heating mode operation is obtained, and when reaching six durations, controls four-way valve
Commutation defrosts.
Above-mentioned step S21-S23 is described in detail in the embodiment of the above-mentioned relevant method of the application, this
Place, which will not repeat them here, illustrates explanation.
It for step S24 scheme, by the 6th duration, assists controlling as the time, when air-conditioning heating mode operation, hold
It before reforwarding row reaches the 6th duration, defrosts before, when continuous service reaches six durations, controls four-way
Valve commutation defrosts, it is intended that there is frost not change under abnormal environment in order to prevent, and then helps to improve the standard of defrosting control
True property.
For the 6th duration, a suitable numerical value can be set according to actual needs, for example, being arranged to two small
When.
Fig. 3 is the structural schematic diagram for the outdoor unit defrosting control device that the application one embodiment provides, as shown in figure 3,
The outdoor unit defrosting control device 3 include:
Module 31 is obtained, for obtaining the mode of operation of air conditioner, and when the mode of operation of air conditioner is heating mode, is obtained
Detection parameters；
Determining module 32, for determining the frosting feelings of outdoor unit heat exchanger according to the heating mode and the detection parameters
Condition；
Control module 33 is selected, the defrosting for the frosting situation according to the outdoor unit heat exchanger determined, to outdoor unit
Mode carries out selection control, and the Defrost mode of the outdoor unit includes: the first Defrost mode, comprising: generated heat by heating module,
And the heat that the heating module issues is blown on outdoor unit heat exchanger by blowing device and is defrosted；And second remove
White mode, comprising: defrosted by four-way valve commutation.
Further, the acquisition module 31 is specifically used for::
Parameter detected by the sensor of air-conditioning itself configuration is obtained, and/or,
Obtain the detection parameters that external equipment is sent.
Further, the detection parameters include: outdoor unit heat exchanger tube temperature and outdoor environment temperature；
The determining module 32 is specifically used for:
According to the heating mode and the temperature difference of the outdoor unit heat exchanger tube temperature and the outdoor environment temperature, really
Determine the frosting situation of outdoor unit heat exchanger.
Further, described according to the heating mode and the outdoor unit heat exchanger tube temperature and the outdoor environment
The temperature difference between temperature determines the frosting situation of outdoor unit heat exchanger, comprising:
When air-conditioning enters heating mode operation, the frosting situation of outdoor unit heat exchanger is determined as non-frosting；
According to the accessed outdoor environment temperature and the outdoor unit heat exchanger tube temperature, the outdoor is calculated
The temperature difference between environment temperature and the outdoor unit heat exchanger tube temperature；
If the temperature difference between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature is full in the first duration
Sufficient first condition, it is determined that the frosting situation of outdoor unit heat exchanger is slight frosting, wherein the first condition is to determine outdoor
The frosting situation of machine heat exchanger is the condition of slight frosting；Alternatively,
If the temperature difference between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature is full in the second duration
Sufficient second condition, it is determined that the frosting situation of outdoor unit heat exchanger is moderate frosting, wherein the second condition is to determine outdoor
The frosting situation of machine heat exchanger is the condition of moderate frosting；Alternatively,
If the temperature difference between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature is full in third duration
Sufficient third condition, it is determined that the frosting situation of outdoor unit heat exchanger is serious frosting, wherein the third condition is to determine outdoor
The frosting situation of machine heat exchanger is the condition of serious frosting；
Wherein, first duration, second duration and the third duration are pre-set.
Further, further includes: obtain module, be used for:
When air-conditioning heating mode continuous service reaches four durations, according to the accessed outdoor environment temperature and
The outdoor unit heat exchanger tube temperature is calculated air-conditioning heating mode continuous service and reaches accessed when four duration
Temperature difference δ T between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature1, wherein the 4th duration can characterize
Air-conditioning heating mode, which enters on stable operation and outdoor unit heat exchanger, does not have frosting；
According to temperature difference δ T1Obtain the first condition: δ T1+X1≤δT2< δ T1+X2；
According to temperature difference δ T1Obtain the second condition: δ T1+X2≤δT3< δ T1+X3；And
According to temperature difference δ T1Obtain the third condition: δ T1+X3≤δT4；
Wherein,
δT2It is the temperature in first duration, between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature
Difference；
δT3It is the temperature in second duration, between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature
Difference；
δT4It is the temperature in the third duration, between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature
Difference；
Wherein, X1、X2And X3Respectively preset defrosting correction-compensation value, and X1< X2< X3。
Further, the 4th duration is pre-set；Or
Since the air-conditioning heating mode operation, according to the accessed outdoor environment temperature and the outdoor unit
The temperature difference between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature is calculated in heat exchanger tube temperature；
If determining the temperature between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature in the 5th duration
Difference remains unchanged, then will determine that the temperature difference between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature remains unchanged
When, the continuous service duration of air-conditioning heating mode is as the 4th duration；
Wherein, the 5th duration is pre-set.
Further, selection control module 33 is specifically used for:
If it is determined that the frosting situation of outdoor radiator is non-frosting, then the various defrosting sides of the air-conditioner outdoor unit are controlled
Formula is not run；Alternatively,
If it is determined that the frosting situation of outdoor radiator is slight frosting, then the first Defrost mode operation is only controlled,
And the control heating module is generated heat with Partial Power；Alternatively,
If it is determined that the frosting situation of outdoor radiator is moderate frosting, then the first Defrost mode operation is only controlled,
And the control heating module is generated heat with total power；Alternatively,
If it is determined that the frosting situation of outdoor radiator is serious frosting, then the second Defrost mode fortune is at least controlled
Row.
Further, described only to control the first Defrost mode operation, and the heating module is controlled with Partial Power
Fever, comprising:
Determine the concrete condition of slight frosting；
According to the concrete condition for the slight frosting determined, the specific shelves that the heating module is generated heat with Partial Power are determined
Position, wherein the heating module has a variety of gears with Partial Power adstante febre.
Further, the concrete condition of the slight frosting of the determination, comprising:
Temperature difference when according to slight frosting between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature determines light
The concrete condition of micro- frosting.
Further, at least control four-way valve commutation defrosts, comprising:
Only control the second Defrost mode operation；Alternatively,
It controls first Defrost mode and second Defrost mode is operated together.
Further, further includes:
First control module, for obtaining the duration of air-conditioning heating mode operation, and when reaching six durations, control
Four-way valve commutation processed defrosts.
Further, further includes:
Second control module, if the mode of the operation of air conditioner for getting is refrigeration mode, dehumidification mode or send
Wind mode, the then various Defrost modes for controlling the air-conditioner outdoor unit are not run.
About the device in above-described embodiment, wherein modules execute the concrete mode of operation in related this method
Embodiment in be described in detail, no detailed explanation will be given here.
Fig. 4 is the structural schematic diagram for the air-conditioning that the application one embodiment provides, as shown in figure 4, the air-conditioning 4 includes:
One or more memories 41, for storing program；And
One or more processors 42, for executing the program stored in the memory 41, to execute as any of the above-described
Method described in.
Further, the air-conditioning 4 includes: heat pump air conditioner.
About the air-conditioning 4 in above-described embodiment, concrete mode has carried out in detail in the embodiment of the method
Description, no detailed explanation will be given here.
It is understood that same or similar part can mutually refer in the various embodiments described above, in some embodiments
Unspecified content may refer to the same or similar content in other embodiments.
It should be noted that term " first ", " second " etc. are used for description purposes only in the description of the present application, without
It can be interpreted as indication or suggestion relative importance.In addition, in the description of the present application, unless otherwise indicated, " multiple ", " mores' "
Meaning refers at least two.
Any process described otherwise above or method description in flow chart or herein it is understood that are as follows: expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the application includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang function, this should be by the application
Embodiment person of ordinary skill in the field understood.
It should be appreciated that each section of the application can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium
In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
It, can also be in addition, can integrate in a processing module in each functional unit in each embodiment of the application
It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized and when sold or used as an independent product in the form of software function module, also can store in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the application.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although embodiments herein has been shown and described above, it is to be understood that above-described embodiment is example
Property, it should not be understood as the limitation to the application, those skilled in the art within the scope of application can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (15)
1. a kind of outdoor unit defrosting control method characterized by comprising
The mode of operation of air conditioner is obtained, and when the mode of operation of air conditioner is heating mode, obtains detection parameters；
The frosting situation of outdoor unit heat exchanger is determined according to the heating mode and the detection parameters；
According to the frosting situation for the outdoor unit heat exchanger determined, selection control, the room are carried out to the Defrost mode of outdoor unit
The Defrost mode of outer machine includes: the first Defrost mode, comprising: is generated heat by heating module and passes through blowing device for the hair
The heat that thermal modules issue, which is blown on outdoor unit heat exchanger, to defrost；And second Defrost mode, comprising: pass through four-way valve
Commutation defrosts.
2. the method according to claim 1, wherein the acquisition detection parameters, comprising:
Parameter detected by the sensor of air-conditioning itself configuration is obtained, and/or,
Obtain the detection parameters that external equipment is sent.
3. the method according to claim 1, wherein the detection parameters include: outdoor unit heat exchanger tube temperature and
Outdoor environment temperature；
The frosting situation that outdoor unit heat exchanger is determined according to the heating mode and the detection parameters, comprising:
According to the heating mode and the temperature difference of the outdoor unit heat exchanger tube temperature and the outdoor environment temperature, room is determined
The frosting situation of outer machine heat exchanger.
4. according to the method described in claim 3, it is characterized in that, described according to the heating mode and the outdoor unit
The temperature difference between heat exchanger tube temperature and the outdoor environment temperature determines the frosting situation of outdoor unit heat exchanger, comprising:
When air-conditioning enters heating mode operation, the frosting situation of outdoor unit heat exchanger is determined as non-frosting；
According to the accessed outdoor environment temperature and the outdoor unit heat exchanger tube temperature, the outdoor environment is calculated
The temperature difference between temperature and the outdoor unit heat exchanger tube temperature；
If the temperature difference between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature is all satisfied in the first duration
One condition, it is determined that the frosting situation of outdoor unit heat exchanger is slight frosting, wherein the first condition is to determine that outdoor unit changes
The frosting situation of hot device is the condition of slight frosting；Alternatively,
If the temperature difference between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature is all satisfied in the second duration
Two conditions, it is determined that the frosting situation of outdoor unit heat exchanger is moderate frosting, wherein the second condition is to determine that outdoor unit changes
The frosting situation of hot device is the condition of moderate frosting；Alternatively,
If the temperature difference between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature is all satisfied in third duration
Three conditions, it is determined that the frosting situation of outdoor unit heat exchanger is serious frosting, wherein the third condition is to determine that outdoor unit changes
The frosting situation of hot device is the condition of serious frosting；
Wherein, first duration, second duration and the third duration are pre-set.
5. according to the method described in claim 4, it is characterized in that, the method also includes:
When air-conditioning heating mode continuous service reaches four durations, according to the accessed outdoor environment temperature and described
Outdoor unit heat exchanger tube temperature is calculated air-conditioning heating mode continuous service and reaches accessed described when four duration
Temperature difference δ T between outdoor environment temperature and the outdoor unit heat exchanger tube temperature1, wherein the 4th duration can characterize air-conditioning
Heating mode, which enters on stable operation and outdoor unit heat exchanger, does not have frosting；
According to temperature difference δ T1Obtain the first condition: δ T1+X1≤δT2< δ T1+X2；
According to temperature difference δ T1Obtain the second condition: δ T1+X2≤δT3< δ T1+X3；And
According to temperature difference δ T1Obtain the third condition: δ T1+X3≤δT4；
Wherein,
δT2It is the temperature difference in first duration, between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature；
δT3It is the temperature difference in second duration, between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature；
δT4It is the temperature difference in the third duration, between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature；
Wherein, X1、X2And X3Respectively preset defrosting correction-compensation value, and X1< X2< X3。
6. according to the method described in claim 5, it is characterized in that, the 4th duration is pre-set；Or
Since the air-conditioning heating mode operation, exchanged heat according to the accessed outdoor environment temperature and the outdoor unit
The temperature difference between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature is calculated in device tube temperature；
If determining the temperature difference guarantor between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature in the 5th duration
Hold it is constant, then when the temperature difference for determining between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature being remained unchanged,
The continuous service duration of air-conditioning heating mode is as the 4th duration；
Wherein, the 5th duration is pre-set.
7. according to the method described in claim 4, it is characterized in that, the frosting feelings for the outdoor radiator that the basis is determined
Condition carries out selection control to the Defrost mode, comprising:
If it is determined that the frosting situation of outdoor radiator is non-frosting, then the various Defrost modes of the air-conditioner outdoor unit are controlled all
It does not run；Alternatively,
If it is determined that the frosting situation of outdoor radiator is slight frosting, then the first Defrost mode operation is only controlled, and control
The heating module is made to generate heat with Partial Power；Alternatively,
If it is determined that the frosting situation of outdoor radiator is moderate frosting, then the first Defrost mode operation is only controlled, and control
The heating module is made to generate heat with total power；Alternatively,
If it is determined that the frosting situation of outdoor radiator is serious frosting, then the second Defrost mode operation is at least controlled.
8. the method according to the description of claim 7 is characterized in that described only control the first Defrost mode operation, and controlling
The heating module is made to generate heat with Partial Power, comprising:
Determine the concrete condition of slight frosting；
According to the concrete condition for the slight frosting determined, the specific gear that the heating module is generated heat with Partial Power is determined,
Wherein, the heating module has a variety of gears with Partial Power adstante febre.
9. according to the method described in claim 8, it is characterized in that, the concrete condition of the slight frosting of the determination, comprising:
Temperature difference when according to slight frosting between the outdoor environment temperature and the outdoor unit heat exchanger tube temperature determines slight knot
The concrete condition of frost.
10. being wrapped the method according to the description of claim 7 is characterized in that at least control four-way valve commutation defrosts
It includes:
Only control the second Defrost mode operation；Alternatively,
It controls first Defrost mode and second Defrost mode is operated together.
11. method according to claim 1 to 10, which is characterized in that the method also includes:
The duration of air-conditioning heating mode operation is obtained, and when reaching six durations, control four-way valve commutation defrosts.
12. the method according to claim 1, wherein the method also includes:
If the mode of the operation of air conditioner got is refrigeration mode, dehumidification mode or air supply pattern, the air-conditioning is controlled
The various Defrost modes of outdoor unit are not run.
The control device 13. a kind of outdoor unit defrosts characterized by comprising
Module is obtained, for obtaining the mode of operation of air conditioner, and when the mode of operation of air conditioner is heating mode, obtains detection ginseng
Number；
Determining module, for determining the frosting situation of outdoor unit heat exchanger according to the heating mode and the detection parameters；
Select control module, for according to the frosting situation of outdoor unit heat exchanger determined, to the Defrost mode of outdoor unit into
Row selection control, the Defrost mode of the outdoor unit includes: the first Defrost mode, comprising: is generated heat and is passed through by heating module
The heat that the heating module issues is blown on outdoor unit heat exchanger and is defrosted by blowing device；And second Defrost mode,
It include: to be defrosted by four-way valve commutation.
14. a kind of air-conditioning characterized by comprising
One or more memories, for storing program；And
One or more processors, for executing the program stored in the memory, to execute as claim 1-12 is any
Method described in.
15. air-conditioning according to claim 14, which is characterized in that the air-conditioning includes: heat pump air conditioner.
Priority Applications (1)
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608510A (en) * | 2019-08-21 | 2019-12-24 | 珠海格力电器股份有限公司 | Air conditioner, outdoor unit, defrosting device, defrosting control method and defrosting control system |
| CN111174371A (en) * | 2019-12-31 | 2020-05-19 | 珠海格力电器股份有限公司 | Control method and device of air conditioner, storage medium and air conditioner |
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| CN114151936A (en) * | 2020-09-07 | 2022-03-08 | 中山大洋电机股份有限公司 | HVAC system control unit and HVAC system |
| WO2022121351A1 (en) * | 2020-12-11 | 2022-06-16 | 珠海格力电器股份有限公司 | Defrosting control method and apparatus for air conditioner, storage medium, and air conditioner |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015081724A (en) * | 2013-10-23 | 2015-04-27 | 日立アプライアンス株式会社 | Air conditioner indoor unit and air conditioner using the same |
| CN104807113A (en) * | 2015-04-30 | 2015-07-29 | 广东美的暖通设备有限公司 | Air conditioner outdoor unit, air conditioner outdoor unit defrosting judging system and air conditioner outdoor unit defrosting judging method |
| CN105972772A (en) * | 2016-05-30 | 2016-09-28 | 广东美的制冷设备有限公司 | Defrosting control method and device for air conditioner |
| CN106152644A (en) * | 2016-06-30 | 2016-11-23 | 珠海格力电器股份有限公司 | Defrosting control method and system for heat pump air conditioning unit |
| CN108800441A (en) * | 2018-06-25 | 2018-11-13 | 宁波奥克斯电气股份有限公司 | Multi-connected machine defrosting control method and air conditioning multi-couple machine system |
| CN109237725A (en) * | 2018-08-22 | 2019-01-18 | 青岛海尔空调电子有限公司 | Circuit, method, apparatus and the computer storage medium of air-conditioner defrosting |
| CN109282430A (en) * | 2018-10-09 | 2019-01-29 | 珠海格力电器股份有限公司 | Method for detecting and controlling defrosting of air conditioner |
-
2019
- 2019-04-22 CN CN201910323844.2A patent/CN110107987A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015081724A (en) * | 2013-10-23 | 2015-04-27 | 日立アプライアンス株式会社 | Air conditioner indoor unit and air conditioner using the same |
| CN104807113A (en) * | 2015-04-30 | 2015-07-29 | 广东美的暖通设备有限公司 | Air conditioner outdoor unit, air conditioner outdoor unit defrosting judging system and air conditioner outdoor unit defrosting judging method |
| CN105972772A (en) * | 2016-05-30 | 2016-09-28 | 广东美的制冷设备有限公司 | Defrosting control method and device for air conditioner |
| CN106152644A (en) * | 2016-06-30 | 2016-11-23 | 珠海格力电器股份有限公司 | Defrosting control method and system for heat pump air conditioning unit |
| CN108800441A (en) * | 2018-06-25 | 2018-11-13 | 宁波奥克斯电气股份有限公司 | Multi-connected machine defrosting control method and air conditioning multi-couple machine system |
| CN109237725A (en) * | 2018-08-22 | 2019-01-18 | 青岛海尔空调电子有限公司 | Circuit, method, apparatus and the computer storage medium of air-conditioner defrosting |
| CN109282430A (en) * | 2018-10-09 | 2019-01-29 | 珠海格力电器股份有限公司 | Method for detecting and controlling defrosting of air conditioner |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608510A (en) * | 2019-08-21 | 2019-12-24 | 珠海格力电器股份有限公司 | Air conditioner, outdoor unit, defrosting device, defrosting control method and defrosting control system |
| CN111174371A (en) * | 2019-12-31 | 2020-05-19 | 珠海格力电器股份有限公司 | Control method and device of air conditioner, storage medium and air conditioner |
| CN111425991A (en) * | 2020-04-03 | 2020-07-17 | 广东美的暖通设备有限公司 | Control method, air conditioning system, and computer-readable storage medium |
| CN114151936A (en) * | 2020-09-07 | 2022-03-08 | 中山大洋电机股份有限公司 | HVAC system control unit and HVAC system |
| CN112161378A (en) * | 2020-09-07 | 2021-01-01 | 珠海格力电器股份有限公司 | Outdoor unit defrosting control method and device and air conditioner |
| CN112161378B (en) * | 2020-09-07 | 2022-06-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Outdoor unit defrosting control method and device and air conditioner |
| WO2022047834A1 (en) * | 2020-09-07 | 2022-03-10 | 中山大洋电机股份有限公司 | Hvac system control unit and hvac system |
| WO2022121351A1 (en) * | 2020-12-11 | 2022-06-16 | 珠海格力电器股份有限公司 | Defrosting control method and apparatus for air conditioner, storage medium, and air conditioner |
| CN113251575A (en) * | 2021-05-07 | 2021-08-13 | 青岛海尔空调器有限总公司 | Defrosting method for air conditioner outdoor unit, electric cabinet, air conditioner, device and medium |
| CN114061031A (en) * | 2021-10-28 | 2022-02-18 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method and device and air conditioner |
| CN114061032A (en) * | 2021-10-28 | 2022-02-18 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method and device and air conditioner |
| CN114877492A (en) * | 2022-04-29 | 2022-08-09 | 浙江中广电器集团股份有限公司 | Heat pump and defrosting control method thereof |
| WO2024001373A1 (en) * | 2022-06-30 | 2024-01-04 | 海信空调有限公司 | Air conditioner and defrosting control method therefor |
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