CN107044716B - Air-conditioner defrosting control method, air-conditioning and computer readable storage medium - Google Patents
Air-conditioner defrosting control method, air-conditioning and computer readable storage medium Download PDFInfo
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- CN107044716B CN107044716B CN201710269632.1A CN201710269632A CN107044716B CN 107044716 B CN107044716 B CN 107044716B CN 201710269632 A CN201710269632 A CN 201710269632A CN 107044716 B CN107044716 B CN 107044716B
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- heat exchanger
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- outdoor environment
- relative humidity
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—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
-
- 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
-
- 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
-
- 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
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
Abstract
The present invention discloses a kind of air-conditioner defrosting control method, air-conditioning and computer readable storage medium, wherein, which includes the following steps: to obtain current outdoor environment relative humidity, current outdoor environment temperature and current outdoor heat exchanger temperature；Detect continuous working period of the air-conditioning under current outdoor envionmental humidity；According to the current outdoor environment relative humidity, the current outdoor environment temperature, the current outdoor heat exchanger temperature and the continuous working period, judge whether outdoor heat exchanger meets preset defrosting condition；When outdoor heat exchanger meets preset frosting condition, defrosting operation is carried out to outdoor heat exchanger.It is contemplated that air-conditioning realizes reasonable defrosting control.
Description
Technical field
The present invention relates to air-conditioner defrosting technical field more particularly to a kind of air-conditioner defrosting control methods, air-conditioning and computer
Readable storage medium storing program for executing.
Background technique
Air-conditioning is a kind of widely used refrigeration or heating equipment, and in the prior art, operation of air conditioner is in low-temperature heating pattern
When, the phenomenon that being often accompanied by outdoor heat exchanger frosting.Once outdoor heat exchanger frosting will reduce the heat exchange effect of air-conditioning system
Rate hinders the promotion of air-conditioning heating ability.In order to solve the ability attenuation problem after air-conditioning frosting, needs for air-conditioning to be switched to and remove
White mode.In the prior art, air-conditioning often uses time defrosting to control, and defrosting cycle is too short to be caused in not up to frosting condition
Frequently defrosting influences the heating effect of air-conditioning, and defrosting cycle is too long will to be difficult to defrost in time.
Above-mentioned technical proposal there are the drawbacks of be that time defrosting technology is difficult to make air-conditioning to realize reasonable defrosting control.
Summary of the invention
The main object of the present invention is to provide a kind of air-conditioner defrosting control method, it is intended to air-conditioning be made to realize reasonable defrosting control
System.
To achieve the above object, air-conditioner defrosting control method proposed by the present invention includes the following steps:
Obtain current outdoor environment relative humidity, current outdoor environment temperature and current outdoor heat exchanger temperature；
Detect continuous working period of the air-conditioning under current outdoor envionmental humidity；
According to the current outdoor environment relative humidity, the current outdoor environment temperature, the current outdoor
Heat exchange temperature and the continuous working period, judge whether outdoor heat exchanger meets preset defrosting condition；
When outdoor heat exchanger meets preset frosting condition, defrosting operation is carried out to outdoor heat exchanger.
Preferably, it is described according to the current outdoor environment relative humidity, it is the current outdoor environment temperature, described
Current outdoor heat exchanger temperature and the continuous working period, judge whether outdoor heat exchanger meets preset defrosting condition
Step, comprising:
According to the current outdoor environment relative humidity, the current outdoor environment temperature and the current outdoor
Heat exchange temperature judges whether outdoor heat exchanger meets preset frosting condition；
When outdoor heat exchanger meets preset frosting condition, according to the current outdoor environment relative humidity and described
Current outdoor heat exchanger temperature determines the current frosting period of outdoor heat exchanger；
According to the continuous working period and the current frosting period, it is preset to judge whether outdoor heat exchanger meets
Defrosting condition.
Preferably, described when outdoor heat exchanger meets preset frosting condition, defrosting operation is carried out to outdoor heat exchanger,
Further comprise:
When reaching the current frosting period in the continuous working period, defrosting operation is carried out to outdoor heat exchanger.
Preferably, described to obtain current outdoor environment relative humidity, current outdoor environment temperature and current outdoor
Before the step of heat exchange temperature, further includes:
Obtain preset data acquisition cycle；
It is changed executing the acquisition current outdoor environment relative humidity, current outdoor environment temperature and current outdoor
When the step of hot device temperature, start timing；
When timing time reaches the data acquisition cycle, obtain next period outdoor environment relative humidity, under
The outdoor heat exchanger temperature of the outdoor environment temperature in one period and next period.
Preferably, before the detecting air-conditioning is the continuous working period under current outdoor envionmental humidity the step of,
Further include:
Judged whether outdoor environment relative humidity and the outdoor environment relative humidity in a upper period in next period are equal；
When the outdoor environment relative humidity in next period is equal with the outdoor environment relative humidity in a upper period, continued to hold
The step of capable continuous working period for detecting air-conditioning under current outdoor envionmental humidity；
When the outdoor environment relative humidity of the outdoor environment relative humidity in next period and a upper period is unequal, detecting
Continuous working period of the air-conditioning under the outdoor environment relative humidity in next period.
Preferably, described according to the continuous working period and the current frosting period, judge that outdoor heat exchanger is
Before no the step of meeting preset defrosting condition, further includes:
The each outdoor environment relative humidity institute obtained before current data obtains period and current data acquisition period is right
Continuous working period corresponding to the frosting period answered and each outdoor environment relative humidity；
It is described according to the continuous working period and the current frosting period, it is pre- to judge whether outdoor heat exchanger meets
If defrosting condition the step of, comprising:
According to continuous working period corresponding to each outdoor environment relative humidity and each outdoor environment relative humidity institute
In the corresponding frosting period, judge whether outdoor heat exchanger meets preset defrosting condition.
Preferably, the continuous working period according to corresponding to each outdoor environment relative humidity and each outdoor environment
In the frosting period corresponding to relative humidity, the step of whether outdoor heat exchanger meets preset defrosting condition judged, comprising:
Obtain the ratio in continuous working period and frosting period corresponding to same outdoor environment relative humidity；
Obtain the summed result of the ratio corresponding to each outdoor environment relative humidity；
Whether reach 1 according to the summed result, judges whether outdoor heat exchanger meets preset defrosting condition.
Preferably, described according to the current outdoor environment relative humidity, the current outdoor environment temperature and institute
State current outdoor heat exchanger temperature judges the step of whether outdoor heat exchanger meets preset frosting condition, comprising:
Outdoor heat exchanger is determined according to the current outdoor environment relative humidity and the current outdoor environment temperature
Current frosting critical-temperature；
According to the current frosting critical-temperature and the current outdoor heat exchanger temperature, judge that outdoor heat exchanger is
It is no to meet preset frosting condition.
Preferably, described to obtain current outdoor environment relative humidity, current outdoor environment temperature and current outdoor
Before the step of heat exchange temperature, further includes:
The current operating status of air-conditioning is obtained, and judges whether the current operating status of air-conditioning is heating state；
If so, executing the acquisition current outdoor environment relative humidity, current outdoor environment temperature and current room
The step of external heat exchanger temperature.
To achieve the above object, the present invention also provides a kind of air-conditioning, the air-conditioning be connected with for detect outside humidity or
The moisture detection device of relative humidity, the temperature detecting element for detecting outdoor environment temperature and outdoor heat exchanger temperature；Institute
State air-conditioning further include: memory, processor and be stored in the air-conditioning that can be run on the memory and on the processor and remove
Frost control program, the air-conditioner defrosting control program realize that air-conditioning as described in any one of the above embodiments removes when being executed by the processor
The step of white control method.
To achieve the above object, the present invention also provides a kind of computer readable storage medium, the computer-readable storages
Air-conditioner defrosting control program is stored on medium, the air-conditioner defrosting control program is realized when being executed by processor as any of the above-described
The step of air-conditioner defrosting control method described in item.
In the technical solution of the present invention, by obtaining current outdoor environment relative humidity, current outdoor environment temperature
With current outdoor heat exchanger temperature, to determine parameter related with outdoor heat exchanger frosting during operation of air conditioner, from
And the continuous working period according to these parameters and air-conditioning under current outdoor envionmental humidity, it can judge outdoor heat exchange
Whether device meets preset defrosting condition, and when outdoor heat exchanger can satisfy preset frosting condition, just outdoor is changed in starting
Hot device carries out defrosting operation, according to during operation of air conditioner parameter related with outdoor heat exchanger frosting and air-conditioning working as cup
Continuous working period under external environment humidity judges whether to carry out defrosting operation to outdoor heat exchanger, is conducive to that air-conditioning is made to realize conjunction
The defrosting of reason controls.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, 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 invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the flow diagram of air-conditioner defrosting control method first embodiment of the invention；
Fig. 2 is the flow diagram of air-conditioner defrosting control method second embodiment of the invention；
Fig. 3 is the flow diagram of the 7th embodiment of air-conditioner defrosting control method of the invention；
Fig. 4 is the flow diagram of the 8th embodiment of air-conditioner defrosting control method of the invention；
Fig. 5 is the flow diagram of the 9th embodiment of air-conditioner defrosting control method of the invention；
Fig. 6 is the outdoor machine system structural schematic diagram of air-conditioning of the invention；
Fig. 7 is the modular structure schematic diagram of one embodiment of air-conditioning of the invention.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 1 | Liquid side shut-off valve | 2 | Gas surveys shut-off valve |
| 3 | Temperature detecting element | 4 | Moisture detection device |
| 5 | Four-way valve | 6 | High pressure sensor |
| 7 | Low pressure sensor | 8 | Compressor |
| 9 | Check valve | 10 | Oil water separator |
| 11 | Gas-liquid separator | 12 | Outdoor heat exchanger |
| 13 | Expansion valve |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Referring to Fig. 1, to achieve the above object, the first embodiment of the present invention provides a kind of air-conditioner defrosting control method,
It is characterized by comprising the following steps:
Step S10 obtains current outdoor environment relative humidity, current outdoor environment temperature and current outdoor heat exchange
Device temperature；
Step S20 detects continuous working period of the air-conditioning under current outdoor envionmental humidity；
Step S30 according to the current outdoor environment relative humidity, the current outdoor environment temperature, described works as
Preceding outdoor heat exchanger temperature and the continuous working period, judge whether outdoor heat exchanger meets preset defrosting condition；
Step S40 carries out defrosting operation to outdoor heat exchanger when outdoor heat exchanger meets preset frosting condition.
In the technical solution of the present invention, by obtaining current outdoor environment relative humidity, current outdoor environment temperature
With current outdoor heat exchanger temperature, to determine parameter related with outdoor heat exchanger frosting during operation of air conditioner, from
And the continuous working period according to these parameters and air-conditioning under current outdoor envionmental humidity, it can judge outdoor heat exchange
Whether device meets preset defrosting condition, and when outdoor heat exchanger can satisfy preset frosting condition, just outdoor is changed in starting
Hot device carries out defrosting operation, according to during operation of air conditioner parameter related with outdoor heat exchanger frosting and air-conditioning working as cup
Continuous working period under external environment humidity judges whether to carry out defrosting operation to outdoor heat exchanger, is conducive to that air-conditioning is made to realize conjunction
The defrosting of reason controls.
The outdoor environment relative humidity can be obtained by relative humidity detecting element measurement, or pass through moisture measurement
It converts or tables look-up to obtain after device measurement humidity, the outdoor environment temperature and the outdoor heat exchanger can pass through setting pair
The temperature detecting element measurement answered obtains.It in the present embodiment, can be using wet-and-dry bulb hygrometer measurement wet-bulb temperature and dry bulb
Temperature, the dry-bulb temperature are outdoor environment temperature, can be obtained institute by the outdoor environment temperature and the wet-bulb temperature
State outdoor environment relative humidity.
Under heating mode, the temperature of the outdoor heat exchanger of air-conditioning is usually at 0 DEG C hereinafter, in cooling mode, the room of air-conditioning
The temperature of external heat exchanger is usually at 30 DEG C or more, therefore, can determine whether that air-conditioning is according to the current outdoor heat exchanger temperature
It is no to be in heating mode, if heating mode is in, it is necessary to further determine whether to defrost to outdoor heat exchanger, into one
The foundation of step judgement is: current outdoor environment relative humidity, the current outdoor environment temperature and the current outdoor
Heat exchange temperature, above-mentioned three item data can be used to judge whether outdoor heat exchanger reaches frosting condition, further according to lasting fortune
The row time is able to determine whether to need to defrost to outdoor heat exchanger.
It is readily appreciated that, current outdoor environment relative humidity, the current outdoor environment temperature, the current outdoor
Heat exchange temperature is all satisfied certain frosting condition, and this frosting condition continues to certain time, just will lead to outdoor heat exchange
Device frosting as a result, therefore, detect continuous working period of the air-conditioning under current outdoor envionmental humidity, it is suitable to facilitate judgement
The duration of suitable frosting environment, according to the continuous working period of the condition of suitable frosting and the frosting condition, that is, can determine whether be
It is no to need to carry out defrosting operation to outdoor heat exchanger.
Fig. 2 is referred to, based on the first embodiment of air-conditioner defrosting control method of the invention, air-conditioner defrosting control of the invention
In the second embodiment of method processed, the step S30 includes:
Step S31 according to the current outdoor environment relative humidity, the current outdoor environment temperature and described works as
Preceding outdoor heat exchanger temperature judges whether outdoor heat exchanger meets preset frosting condition；
Step S32 is relatively wet according to the current outdoor environment when outdoor heat exchanger meets preset frosting condition
Degree and the current outdoor heat exchanger temperature determine the current frosting period of outdoor heat exchanger；
Step S33 judges whether outdoor heat exchanger is full according to the continuous working period and the current frosting period
The preset defrosting condition of foot.
According to the outdoor environment temperature and the outdoor environment relative humidity and the current outdoor heat exchanger temperature
It may determine that outdoor heat exchanger whether there is the possibility of frosting.For example, can then recognize when outdoor heat exchanger temperature is more than 0 DEG C
Do not have frosting condition for outdoor heat exchanger.When outdoor heat exchanger temperature is 0 DEG C or less, further combined with outdoor environment temperature
With outdoor environment relative humidity, it can be determined that whether outdoor heat exchanger has frosting condition.
It can determine outdoor according to the current outdoor environment relative humidity and the current outdoor heat exchanger temperature
The current frosting period of heat exchanger, and under conditions of outdoor heat exchanger temperature is suitble to frosting, outdoor environment relative humidity is got over
Greatly, the corresponding frosting period is shorter, conversely, outdoor environment relative humidity is smaller, the corresponding frosting period is longer.In systems may be used
To store a mapping table, it is stored with outdoor environment relative humidity in this mapping table and the one-to-one correspondence in frosting period closes
It is that after the outdoor environment relative humidity of acquisition, according to the mapping table, that is, can determine the corresponding frosting period.
It is readily appreciated that, by continuous working period of the outdoor heat exchanger in the environment for meeting frosting condition and frosting period phase
Compare, that is, can determine whether outdoor heat exchanger whether frosting, be conducive to comparison result accordingly judge whether need start to outdoor heat exchange
The defrosting of device controls.
Based on the second embodiment of air-conditioner defrosting control method of the invention, the of air-conditioner defrosting control method of the invention
In three embodiments, the step S40 further comprises:
Step S41 removes outdoor heat exchanger when reaching the current frosting period in the continuous working period
Frost operation.
For example, system is run between the 12:00-12:15 moment with 90% relative humidity, which corresponds to frosting week
Phase T1 is 45min, and since the continuous working period is 15min, therefore the not up to frosting period judges the non-frosting of system, can not
Defrosting control is carried out, continues to detect continuous working period of the air-conditioning under current outdoor relative humidity at this time, when continuous service
Between when reaching 45min, starting defrosting control.
Certainly, it defrosts when being not up to the current frosting period in the continuous working period to outdoor heat exchanger
Operation is also similarly included within protection scope of the present invention.
Based on the second embodiment of air-conditioner defrosting control method of the invention, the of air-conditioner defrosting control method of the invention
In four embodiments, before the step S10, further includes:
Step S50 obtains preset data acquisition cycle；
When executing the step S10, step S60 is executed, starts timing；
Step S70 obtains next week according to the step S10 when timing time reaches the data acquisition cycle
Outdoor environment relative humidity, the outdoor environment temperature in next period and the outdoor heat exchanger temperature in next period of phase.
A upper period herein and next period refer to two adjacent data acquisition cycles.Due to outdoor environment and
Outdoor heat exchanger temperature is constantly in variation, and the frosting period also can constantly change, only with the outdoor environment of one-shot measurement and room
The continuous working period of external heat exchanger temperature and detecting air-conditioning under the data, defrosting control may not be able to reach optimal effect
Fruit.In order to further increase the accuracy of defrosting control, outdoor environment relative humidity, outdoor environment temperature can be periodically obtained
Degree and outdoor heat exchanger temperature, therefore, system can detect the variation of frosting condition in time, be adjusted into defrosting control rapidly
Opportunity.
Be readily appreciated that, when data acquisition cycle is shorter, be conducive to the variation for sensing frosting condition in time, thus realize and
When and the control that effectively defrosts.For example, data acquisition cycle can be in 5min or less.Certainly, data acquisition cycle also should not mistake
It is short.
Based on the fourth embodiment of air-conditioner defrosting control method of the invention, the of air-conditioner defrosting control method of the invention
In five embodiments, before step S20, further includes:
The outdoor environment relative humidity of step S80, the outdoor environment relative humidity and a upper period that judge next period is
It is no equal；
Step S81, when the outdoor environment relative humidity in next period is equal with the outdoor environment relative humidity in a upper period
When, continue to execute the step S20；
Step S82, when the outdoor environment relative humidity not phase in outdoor environment relative humidity and a upper period in next period
Whens equal, according to continuous working period of the step S20 detecting air-conditioning under the outdoor environment relative humidity in next period.
Judged whether outdoor environment relative humidity and the outdoor environment relative humidity in a upper period in next period are equal, root
It is judged that as a result can determine whether to add up the air-conditioner operation time under upper outdoor environment relative humidity.Work as phase
When outdoor environment relative humidity data in adjacent two periods is equal, the continuous working period under the relative humidity data is carried out tired
Meter is opposite to the outdoor environment in a upper period when the outdoor environment relative humidity data in adjacent two period is unequal
Continuous working period under humidity is stored, and starts to detect air-conditioning holding under the outdoor environment relative humidity in next period
Continuous runing time.
Certainly, this kind of embodiment party for only detecting continuous working period of the air-conditioning under current outdoor envionmental humidity
Formula, in this embodiment, cumulative time quantum is exactly the duration of the data acquisition cycle every time.
In actual application, a timer can be taken for carrying out data acquisition control, and take another meter
When device detecting continuous working period of the air-conditioning under current outdoor envionmental humidity.
Based on the 5th embodiment of air-conditioner defrosting control method of the invention, the of air-conditioner defrosting control method of the invention
In six embodiments, before the step S33, further includes:
Step S90, each outdoor environment obtained before current data obtains period and current data acquisition period are opposite
Continuous working period corresponding to frosting period corresponding to humidity and each outdoor environment relative humidity；
The step S33, comprising:
Step S33a, according to continuous working period corresponding to each outdoor environment relative humidity and each outdoor environment phase
To the frosting period corresponding to humidity, judge whether outdoor heat exchanger meets preset defrosting condition.
It carries out obtaining outdoor environment relative humidity, outdoor environment temperature and outdoor heat exchange according to preset data acquisition cycle
Device temperature is conducive to determine that the outdoor environment is opposite according to the outdoor environment relative humidity got in each data acquisition cycle
The humidity corresponding frosting period.
For example, the period 1 collection of data acquisition is initially entered from 12:00 when data acquisition cycle t is 5min, 12:
Between the 00-12:15 moment, for system with the operation of 90% relative humidity, it is 45min which, which corresponds to frosting cycle T 1,.It is counting
When to reach second of data acquisition cycle (be at this time 12:05), systems stay runing time t1 is only 5min, is not up to worked as the time
Therefore the corresponding frosting cycle T 1 of preceding relative humidity controls, and directly acquire the data of the second wheel without defrosting, due to the
The outdoor environment relative data that two wheels are got is still constant, therefore, can continue to add up to continuous working period t1 at this time,
Until reaching the 4th data acquisition cycle (is at this time 12:15), systems scan to relative humidity data has changed (opposite at this time
Data are 80%), just to stop adding up continuous working period t1, and the holding under 80% relative humidities to air-conditioning
Continuous runing time t2 is added up.
Within the time of 12:15-12:35, system is run with 80% relative humidity, which corresponds to frosting cycle T 2
For 60min.In order to which whether lasting judgement meets defrosting condition in air-conditioning, need to obtain and store first frosting cycle data T1
With the continuous working period t1 under 90% relative humidity, and second frosting cycle data T2 is obtained and stored and in 80% phase
To the continuous working period t2 under humidity.
Referring to Fig. 3, the sixth embodiment based on air-conditioner defrosting control method of the invention, air-conditioner defrosting control of the invention
In 7th embodiment of method processed, the step S33a, comprising:
Step S33b obtains the ratio in continuous working period corresponding to same outdoor environment relative humidity and frosting period
Value；
Step S33c obtains the summed result of the ratio corresponding to each outdoor environment relative humidity；
Whether step S33d reaches 1 according to the summed result, and it is preset except ice-lolly to judge whether outdoor heat exchanger meets
Part.
It should be noted that since air-conditioning reaches frosting condition, if air-conditioning holding in a certain outdoor environment relative humidity
Continuous runing time reaches the corresponding frosting period, then should start the defrosting control to outdoor heat exchanger.
It is not up to the frosting period when the continuous working period under the relative humidity, and relative humidity changes, system exists
When detecting to the continuous working period under new relative humidity, it is right should also to obtain each outdoor environment relative humidity institute
The summed result for the ratio answered, and whether reach 1 according to the summed result, it is default to judge whether outdoor heat exchanger meets
Defrosting condition, once summed result reaches 1, it is necessary to start and the defrosting of outdoor heat exchanger controlled.
For example, it is assumed that data acquisition cycle is 5min, first time data are obtained since the 12:00.In 12:00-12:15
Between quarter, for system with the operation of 90% relative humidity, which correspond to frosting cycle T 1 as 45min, 12:15-12:35 when
In, system is run with 80% relative humidity, and it is 60min which, which corresponds to frosting cycle T 2,.
The first time summed result got are as follows:
5/45=1/9≤1 is unsatisfactory for default defrosting condition；
Second of the summed result got are as follows:
10/45=2/9≤1 is unsatisfactory for default defrosting condition；
The third time summed result got are as follows:
15/45=1/3≤1 is unsatisfactory for default defrosting condition；
Since the summed result of the first period (12:00-12:15) is to reach 1, the process of data acquisition is always
It is lasting to carry out to the second period (12:15-12:35), and continue to count summed result.
The 4th summed result got are as follows:
15/45+5/60=5/12≤1 is unsatisfactory for default defrosting condition；
......
The 8th summed result got are as follows:
15/45+20/60=2/3≤1 is still unsatisfactory for default defrosting condition.
Therefore, it is necessary to continue the outdoor environment relative humidity of acquisition next cycle, outdoor environment temperature, outdoor heat exchanger
Temperature and continuous working period.
Fig. 4 is referred to, the appointing into the 7th embodiment of the second embodiment based on air-conditioner defrosting control method of the invention
One, in the 8th embodiment of air-conditioner defrosting control method of the invention, the step S31 includes:
Step S31a determines room according to the current outdoor environment relative humidity and the current outdoor environment temperature
The current frosting critical-temperature of external heat exchanger；
Step S31b judges room according to the current frosting critical-temperature and the current outdoor heat exchanger temperature
Whether external heat exchanger meets preset frosting condition.
According to the outdoor environment temperature and the outdoor environment relative humidity, current dew-point temperature can be determined.Only
Want outdoor heat exchanger temperature in dew-point temperature hereinafter, there is the possibility of frosting, why only exist the possibility of frosting, be because
Whether frosting is referring also to continuous working period of the system in the case where being suitable for frosting condition.In the present embodiment, it prestores in systems
Frosting critical temperature value under different outdoor environment temperatures and outdoor environment relative humidity, in order to enable the system to more accurately judge
Outdoor heat exchanger reaches frosting condition, and in the present embodiment, the preferably described frosting critical-temperature is less than or equal to the dew point temperature
Degree, when outdoor heat exchanger temperature is less than or equal to the frosting critical-temperature, it is believed that outdoor heat exchanger meets preset frosting
Condition simultaneously starts frosting.
Referring to Fig. 5, the appointing into the 7th embodiment of the first embodiment based on air-conditioner defrosting control method of the invention
One, in the 9th embodiment of air-conditioner defrosting control method of the invention, before the step S10, further includes:
Step S100 obtains the current operating status of air-conditioning, and judges whether the current operating status of air-conditioning is heating shape
State；
If so, executing the step S10.
It may determine that whether air-conditioning is in heating state according to the temperature of outdoor heat exchanger, only when air-conditioning is in heating shape
When state, just there is the possibility of frosting in outdoor heat exchanger, and just it is necessary to judge whether to defrost.
In the present embodiment, the current operating status of air-conditioning is directly acquired, when the current operating status of air-conditioning is heating shape
When state, the judgement of subsequent starting defrosting control is just carried out, so that the logic of method is simpler and intuitive, due to judging air-conditioning
The step of operating status, is easy and accurate, therefore not easily leads to judge by accident.
The arbitrary sequence before the step S30 can be set in step S100, in the present embodiment, step S100 setting
Before step S10, be conducive to avoid carrying out unnecessary data collection and analysis under refrigeration mode.
In addition, to achieve the above object, the first embodiment of the present invention provides a kind of air-conditioning, the air-conditioning, which is connected with, to be used for
The moisture detection device 4 of detection outside humidity or relative humidity, for detecting outdoor environment temperature and outdoor heat exchanger temperature
Temperature detecting element 3；The air-conditioning further include: memory, processor and be stored on the memory and can be in the processing
The air-conditioner defrosting control program run on device, the air-conditioner defrosting control program are realized any of the above-described when being executed by the processor
The step of air-conditioner defrosting control method described in item.
Referring to Fig. 6, the structural schematic diagram of one embodiment of outdoor machine system for air-conditioning, air conditioner outdoor unit system can be by
Liquid side shut-off valve 1, gas side shut-off valve 2, temperature detecting element 3, moisture detection device 4, four-way valve 5, high pressure sensor 6, low pressure
Sensor 7, compressor assembly, check valve 9, oil water separator 10, gas-liquid separator 11, outdoor heat exchanger 12 and 13 groups of expansion valve
At, wherein it can according to need and delete or increase in the enterprising units of this outdoor machine system.
The compressor assembly can be composed in parallel by any number of frequency-changeable compressor and/or invariable frequency compressor, with reality
Now full frequency-changeable compressor combination, the combination of full invariable frequency compressor or frequency conversion, invariable frequency compressor hybrid combining.It is described in the present embodiment
Compressor assembly uses an invariable frequency compressor and a frequency-changeable compressor parallel connection.
Referring to Fig. 7, in some specific embodiments, which may include: processor 1001, such as CPU, network
Interface 1004, user interface 1003, memory 1005, communication bus 1002.Wherein, communication bus 1002 is for realizing these groups
Connection communication between part.User interface 1003 may include display screen (Display), input unit such as keyboard
(Keyboard), optional user interface 1003 can also include standard wireline interface and wireless interface, when specifically used, front end
Data are obtained by above-mentioned user interface 1003.Network interface 1004 optionally may include the wireline interface of standard, wirelessly connect
Mouth (such as WI-FI interface).Memory 1005 can be high speed RAM memory, be also possible to stable memory (non-
Volatile memory), such as magnetic disk storage.Memory 1005 optionally can also be independently of aforementioned processor 1001
Storage device.
It will be understood by those skilled in the art that the restriction of the not structure paired terminal of terminal structure shown in Fig. 7, can wrap
It includes than illustrating more or fewer components, perhaps combines certain components or different component layouts.
Since the technical solution of the present embodiment air-conditioning includes at least whole skills of above-mentioned air-conditioner defrosting control method embodiment
Art scheme, therefore at least no longer repeated one by one herein with whole technical effects of above embodiments.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the system that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or system institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or system.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device enters the present invention respectively
Method described in a embodiment.
In addition, to achieve the above object, it is described computer-readable the present invention also provides a kind of computer readable storage medium
Air-conditioner defrosting control program is stored on storage medium, the air-conditioner defrosting control program realizes above-mentioned when being executed by processor
The step of air-conditioner defrosting control method described in one.Due to the present embodiment computer readable storage medium technical solution at least
Whole technical solutions including above-mentioned air-conditioner defrosting control method embodiment, therefore at least with whole technologies of above embodiments
Effect no longer repeats one by one herein.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of air-conditioner defrosting control method, which is characterized in that the air-conditioning is connected with for detecting outside humidity or relatively wet
The moisture detection device of degree, the temperature detecting element for detecting outdoor environment temperature and outdoor heat exchanger temperature；The air-conditioning
Defrosting control method includes the following steps:
Obtain current outdoor environment relative humidity, current outdoor environment temperature and current outdoor heat exchanger temperature；
Detect continuous working period of the air-conditioning under current outdoor envionmental humidity；
According to the current outdoor environment relative humidity, the current outdoor environment temperature, the current outdoor heat exchange
Device temperature and the continuous working period, judge whether outdoor heat exchanger meets preset defrosting condition；
When outdoor heat exchanger meets preset frosting condition, defrosting operation is carried out to outdoor heat exchanger；
It is described according to the current outdoor environment relative humidity, the current outdoor environment temperature, the current outdoor
Heat exchange temperature and the continuous working period, the step of whether outdoor heat exchanger meets preset defrosting condition judged, comprising:
According to the current outdoor environment relative humidity, the current outdoor environment temperature and the current outdoor heat exchange
Device temperature judges whether outdoor heat exchanger meets preset frosting condition；
When outdoor heat exchanger meets preset frosting condition, according to the current outdoor environment relative humidity and described current
Outdoor heat exchanger temperature determine current frosting period of outdoor heat exchanger；
According to the continuous working period and the current frosting period, judge whether outdoor heat exchanger meets preset defrosting
Condition.
2. air-conditioner defrosting control method according to claim 1, which is characterized in that described to be preset when outdoor heat exchanger meets
Frosting condition when, defrosting operation is carried out to outdoor heat exchanger, further comprises:
When reaching the current frosting period in the continuous working period, defrosting operation is carried out to outdoor heat exchanger.
3. air-conditioner defrosting control method according to claim 1, which is characterized in that described to obtain current outdoor environment phase
Before the step of to humidity, current outdoor environment temperature and current outdoor heat exchanger temperature, further includes:
Obtain preset data acquisition cycle；
Executing the acquisition current outdoor environment relative humidity, current outdoor environment temperature and current outdoor heat exchanger
When the step of temperature, start timing；
When timing time reaches the data acquisition cycle, outdoor environment relative humidity, the Xia Yizhou in next period are obtained
The outdoor heat exchanger temperature of the outdoor environment temperature of phase and next period.
4. air-conditioner defrosting control method according to claim 3, which is characterized in that the detecting air-conditioning is in current outdoor ring
Before the step of continuous working period under the relative humidity of border, further includes:
Judged whether outdoor environment relative humidity and the outdoor environment relative humidity in a upper period in next period are equal；
When the outdoor environment relative humidity in next period is equal with the outdoor environment relative humidity in a upper period, institute was continued to execute
The step of stating continuous working period of the detecting air-conditioning under current outdoor envionmental humidity；
When the outdoor environment relative humidity of the outdoor environment relative humidity in next period and a upper period is unequal, air-conditioning was detected
Continuous working period under the outdoor environment relative humidity in next period.
5. air-conditioner defrosting control method according to claim 4, which is characterized in that described according to the continuous working period
With the current frosting period, before judging the step of whether outdoor heat exchanger meets preset defrosting condition, further includes:
It obtains corresponding to each outdoor environment relative humidity before current data obtains period and current data acquisition period
Continuous working period corresponding to frosting period and each outdoor environment relative humidity；
It is described according to the continuous working period and the current frosting period, it is preset to judge whether outdoor heat exchanger meets
The step of defrosting condition, comprising:
According to corresponding to continuous working period corresponding to each outdoor environment relative humidity and each outdoor environment relative humidity
The frosting period, judge whether outdoor heat exchanger meets preset defrosting condition.
6. air-conditioner defrosting control method according to claim 5, which is characterized in that described opposite according to each outdoor environment
In the frosting period corresponding to continuous working period corresponding to humidity and each outdoor environment relative humidity, judge outdoor heat exchanger
The step of whether meeting preset defrosting condition, comprising:
Obtain the ratio in continuous working period and frosting period corresponding to same outdoor environment relative humidity；
Obtain the summed result of the ratio corresponding to each outdoor environment relative humidity；
Whether reach 1 according to the summed result, judges whether outdoor heat exchanger meets preset defrosting condition.
7. air-conditioner defrosting control method according to any one of claim 1 to 6, which is characterized in that described according to
Current outdoor environment relative humidity, the current outdoor environment temperature and the current outdoor heat exchanger temperature judges room
The step of whether external heat exchanger meets preset frosting condition, comprising:
Determine that outdoor heat exchanger is current according to the current outdoor environment relative humidity and the current outdoor environment temperature
Frosting critical-temperature；
According to the current frosting critical-temperature and the current outdoor heat exchanger temperature, judge whether outdoor heat exchanger is full
The preset frosting condition of foot.
8. air-conditioner defrosting control method according to any one of claim 1 to 6, which is characterized in that described to obtain currently
Outdoor environment relative humidity, current outdoor environment temperature and the step of current outdoor heat exchanger temperature before, further includes:
The current operating status of air-conditioning is obtained, and judges whether the current operating status of air-conditioning is heating state；
It is changed if so, executing the acquisition current outdoor environment relative humidity, current outdoor environment temperature and current outdoor
The step of hot device temperature.
9. a kind of air-conditioning, which is characterized in that the air-conditioning is connected with the Humidity Detection for detecting outside humidity or relative humidity
Element, the temperature detecting element for detecting outdoor environment temperature and outdoor heat exchanger temperature；The air-conditioning further include: storage
The air-conditioner defrosting control program that device, processor and being stored in can be run on the memory and on the processor, the sky
Defrosting control program is adjusted to realize when being executed by the processor as air-conditioner defrosting described in any item of the claim 1 to 8 controls
The step of method.
10. a kind of computer readable storage medium, which is characterized in that be stored with air-conditioning on the computer readable storage medium and remove
Frost control program, the air-conditioner defrosting control program are realized when being executed by processor as described in any item of the claim 1 to 8
The step of air-conditioner defrosting control method.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710269632.1A CN107044716B (en) | 2017-04-21 | 2017-04-21 | Air-conditioner defrosting control method, air-conditioning and computer readable storage medium |
| PCT/CN2017/106842 WO2018072727A1 (en) | 2016-10-20 | 2017-10-19 | Method and device for defrosting air conditioner |
| EP17861512.6A EP3531045A4 (en) | 2016-10-20 | 2017-10-19 | Method and device for defrosting air conditioner |
| US16/387,358 US20190242604A1 (en) | 2016-10-20 | 2019-04-17 | Method and device for defrosting air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710269632.1A CN107044716B (en) | 2017-04-21 | 2017-04-21 | Air-conditioner defrosting control method, air-conditioning and computer readable storage medium |
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| Publication Number | Publication Date |
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| CN107044716A CN107044716A (en) | 2017-08-15 |
| CN107044716B true CN107044716B (en) | 2019-10-01 |
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| CN107990486B (en) * | 2017-11-02 | 2019-11-29 | 珠海格力电器股份有限公司 | Air-conditioning defrosting control method and device |
| CN108444035A (en) * | 2018-02-14 | 2018-08-24 | 青岛海尔空调器有限总公司 | Air conditioner defrosting control method |
| CN108679781B (en) * | 2018-05-03 | 2020-02-28 | 珠海格力电器股份有限公司 | Air conditioner defrosting control method and device, storage medium and air conditioner |
| CN108826584A (en) * | 2018-06-06 | 2018-11-16 | 青岛海尔空调器有限总公司 | A kind of defrosting control method of air conditioner, device, storage medium |
| CN110836468A (en) * | 2018-08-17 | 2020-02-25 | 青岛海尔空调器有限总公司 | Defrosting control method for air conditioner |
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| CN111140993A (en) * | 2018-11-06 | 2020-05-12 | 奥克斯空调股份有限公司 | Air conditioner heating and defrosting method and air conditioner using same |
| CN110469959B (en) * | 2019-07-24 | 2022-03-29 | 青岛海尔空调器有限总公司 | Control method and device for defrosting of air conditioner and air conditioner |
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| CN111121230A (en) * | 2019-12-30 | 2020-05-08 | 宁波奥克斯电气股份有限公司 | Air conditioner defrosting control method and device and air conditioner |
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