CN104776549B - Air conditioner defrosting control method and defroster - Google Patents
Air conditioner defrosting control method and defroster Download PDFInfo
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- CN104776549B CN104776549B CN201410015085.0A CN201410015085A CN104776549B CN 104776549 B CN104776549 B CN 104776549B CN 201410015085 A CN201410015085 A CN 201410015085A CN 104776549 B CN104776549 B CN 104776549B
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- defrosting
- temperature
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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
- F24F11/30—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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
Abstract
The present invention proposes a kind of air-conditioner defroster and defrosting control method, wherein, air conditioner defrosting control method comprises the following steps：When outdoor environment temperature, which is less than defrosting, enters temperature, control air conditioner is defrosted；Defrosting time is obtained, and determines the gear section residing for defrosting time；It is corrected according to gear section to defrosting into temperature, and the defrosting after correction is entered into temperature as the entrance temperature to defrost next time.The air-conditioner defroster and control method of the present invention, the specific frosting situation of different regions air conditioner can be directed to, the defrosting for correcting air conditioner enters temperature, and then comfortableness when can improve air conditioner heat-production, the reliability of air-conditioner refrigerating system is improved, energy consumption can be reduced.
Description
Technical field
The present invention relates to electrical equipment manufacturing technology field, more particularly to a kind of air conditioner defrosting control method and air conditioner defrosting
Device.
Background technology
With the popularization of air conditioner, user requires more and more higher, especially heating effect to the comfortableness of air conditioner, in the winter
Season, people particularly paid close attention to.When in the winter time, air conditioner heats at low ambient temperatures, the easy frosting in outdoor heat exchanger surface, increases
Thermal resistance, heat-transfer effect is degrading, thus in order to ensure that the heating effect of air conditioner needs to defrost to air conditioner.At present, it is right
The mode that air conditioner is defrosted is various, can be divided into cooling and warming conversion defrosting substantially and not shut down hot gas bypass defrosting two big
Class, wherein, cooling and warming defrosting is that the heat exchange form for changing outdoor heat exchanger is removed to realize by switching four-way valve events
Frost, not shutting down defrosting is controlled by stream, realizes indoor heating, outdoor Defrost operation.Preset and remove generally in electric control gear
White entry condition for example defrosts into temperature, exit criteria, is acted by automatically controlled programme-control to complete to defrost.
But the climate temperature of different regions can differ greatly, such as the area such as the Kweiyang of China, Changsha belongs to severe knot
White area, air conditioner frosting is serious during winter heating, and as Chengdu, Guilin then belong to slight frosting area.But differently
Area air conditioner, which performs same defrosting program and for example enters temperature with same defrosting, to be run, it is clear that for severe frosting it is regional with
Effect difference is realized in slight frosting area, can be caused defrosting not enough or excessively be performed defrosting, thus can reduce air-conditioning heating effect
Fruit, influence the comfortableness used.
The content of the invention
The purpose of the present invention is intended at least solve above-mentioned technical problem to a certain extent.
Therefore, it is an object of the present invention to propose a kind of air conditioner defrosting control method, air conditioner defrosting control
Method can be directed to the specific frosting situation of different regions air conditioner, and the defrosting for correcting air conditioner enters temperature, and then can carry
Comfortableness during high air conditioner heat-production, the reliability of air-conditioner refrigerating system is improved, energy consumption can be reduced.
It is another object of the present invention to propose a kind of air-conditioner defroster.
To reach above-mentioned purpose, one aspect of the present invention embodiment proposes a kind of air conditioner defrosting control method, the air conditioner
Defrosting control method comprises the following steps：When outdoor environment temperature, which is less than defrosting, enters temperature, control air conditioner is defrosted；
Defrosting time is obtained, and determines the gear section residing for the defrosting time；The defrosting is entered according to the gear section
Temperature is corrected, and the defrosting after correction is entered into temperature as the entrance temperature to defrost next time.
The air conditioner defrosting control method of the embodiment of the present invention, by obtaining defrosting time, is determined residing for defrosting time
Gear section, it is corrected according to gear section to defrosting into temperature, and then controls air conditioner to enter with the defrosting after correcting
Temperature carries out new defrosting process, can be directed to the specific frosting situation control air conditioner of different regions air conditioner and be defrosted,
Improve comfortableness during air conditioner heat-production.In addition, the air conditioner defrosting control method of the embodiment of the present invention can improve air-conditioning
The reliability of device refrigeration system, reduce energy consumption.
Further, in some embodiments of the invention, school is carried out to defrosting into temperature according to the gear section
Just, specifically include：When the defrosting time is in the first gear section, reduces defrosting and enter temperature so that the first defrosting to be entered
Temperature enters temperature and enters temperature less than initial defrosting as the entrance temperature to defrost, first defrosting next time；When described
When defrosting time is in the first gear section twice in succession, reduces defrosting and enter temperature so that the second defrosting to be made into temperature
For the entrance temperature to defrost next time, second defrosting enters temperature and enters temperature less than the described first defrosting；Removed when described
When white Time Continuous is in the first gear section three times, reduce defrosting enter temperature using by the 3rd defrosting enter temperature as
The entrance temperature to defrost next time, the 3rd defrosting enter temperature and enter temperature less than the described second defrosting.
Further, in some embodiments of the invention, school is carried out to defrosting into temperature according to the gear section
Just, specifically include：When the defrosting time is in the second gear section, presently described defrosting is maintained to enter temperature as next
The entrance temperature of secondary defrosting.
Further, in some embodiments of the invention, school is carried out to defrosting into temperature according to the gear section
Just, specifically include：
When the defrosting time is in third gear section, raises the defrosting and enter temperature so that the 4th defrosting to be entered
As the entrance temperature to defrost next time, the 4th defrosting enters temperature and is more than the initial defrosting temperature temperature；When described
When defrosting time is in the third gear section twice in succession, raises the defrosting and enter temperature so that the 5th defrosting is entered into temperature
Degree enters temperature and enters temperature more than the described 4th defrosting as the entrance temperature to defrost, the 5th defrosting next time；Work as institute
When stating defrosting time and being continuously in the third gear section three times, raise the defrosting and enter temperature so that the 6th defrosting to be entered
Temperature enters temperature and enters temperature more than the described 5th defrosting as the entrance temperature to defrost, the 6th defrosting next time.
Wherein, in some embodiments of the invention, the gear section meets：
3min<G1≤5.5min, wherein, G1 is the first gear section；
5.5min<G2≤7.5min, wherein, G2 is the second gear section；
7.5min<G3≤10min, wherein, G3 is third gear section.
To reach above-mentioned purpose, another aspect of the present invention embodiment proposes a kind of air-conditioner defroster, and the air conditioner removes
White device includes：Temperature detector, for detecting outdoor environment temperature；Time detector, four-way valve changes when being defrosted for detecting
To time interval to obtain defrosting time；Controller, when the outdoor environment temperature, which is less than defrosting, enters temperature, the control
Device control air conditioner is defrosted, and determines the gear section residing for the defrosting time, and according to the gear section pair
The defrosting is corrected into temperature, and the defrosting after correction is entered into temperature as the entrance temperature to defrost next time.
The air-conditioner defroster of the embodiment of the present invention, the detection of passage time detector obtain the defrosting time of air conditioner,
Controller judges the gear section residing for defrosting time, is corrected according to gear section to defrosting into temperature, and then can be with
Defrosted for different regions air conditioner specific frosting situation control air conditioner, it is comfortable when improving air conditioner heat-production
Property.In addition, the air-conditioner defroster of the embodiment of the present invention can improve the reliability of air-conditioner refrigerating system, energy consumption is reduced.
Further, in some embodiments of the invention, it is described when the defrosting time is in the first gear section
It is the entrance temperature to defrost next time that controller, which determines that the first defrosting enters temperature, and first defrosting enters temperature less than initial
Defrosting enters temperature；When the defrosting time is in the first gear section twice in succession, the controller determines second
It is the entrance temperature to defrost next time that defrosting, which enters temperature, and second defrosting is less than the described first defrosting into temperature and enters temperature
Degree；When the defrosting time is continuously in the first gear section three times, the controller determines that the 3rd defrosting enters temperature
Degree enters temperature and enters temperature less than the described second defrosting as the entrance temperature to defrost, the 3rd defrosting next time.
Further, in some embodiments of the invention, it is described when the defrosting time is in the second gear section
Controller maintains presently described defrosting to enter temperature to be used as the entrance temperature to defrost next time.
Further, in some embodiments of the invention, it is described when the defrosting time is in third gear section
It is the entrance temperature to defrost next time that controller, which determines that the 4th defrosting enters temperature, and the 4th defrosting is more than described into temperature
Initial defrosting temperature；When the defrosting time is in the third gear section twice in succession, the controller determines the 5th
It is the entrance temperature to defrost next time that defrosting, which enters temperature, and the 5th defrosting is more than the described 4th defrosting into temperature and enters temperature
Degree；When the defrosting time is continuously in the third gear section three times, the controller determines that the 6th defrosting enters temperature
The entrance temperature for spending to defrost next time, the 6th defrosting enter temperature and enter temperature more than the described 5th defrosting.
Wherein, in some embodiments of the invention, the gear section meets：
3min<G1≤5.5min, wherein, G1 is the first gear section；
5.5min<G2≤7.5min, wherein, G2 is the second gear section；
7.5min<G3≤10min, wherein, G3 is third gear section.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the flow chart according to the air conditioner defrosting control method of one embodiment of the present of invention；
Fig. 2（a）（b）（c）For according to compressor, four-way in the air conditioner of one embodiment of the present of invention defrosting control process
The action schematic diagram of valve and outdoor fan；
Fig. 3 is the flow chart according to the air conditioner defrosting control process of the specific embodiment of the present invention；
Fig. 4 is the block diagram according to the air-conditioner defroster of one embodiment of the present of invention；And
Fig. 5 is the schematic diagram according to the air-conditioner defroster of one embodiment of the present of invention defrosting process.
Reference
Temperature detector 10, time detector 20 and controller 30.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.For letter
Change disclosure of the invention, hereinafter the part and setting of specific examples are described.Certainly, they are only example, and
Purpose does not lie in the limitation present invention.In addition, the present invention can in different examples repeat reference numerals and/or letter.It is this heavy
It is the relation between itself not indicating discussed various embodiments and/or setting for purposes of simplicity and clarity again.This
Outside, the invention provides various specific techniques and material examples, but those of ordinary skill in the art can be appreciated that
The applicable property of other techniques and/or the use of other materials.In addition, fisrt feature described below second feature it
" on " structure can include the first and second features and be formed as the embodiment that directly contacts, other feature shape can also be included
Into the embodiment between the first and second features, such first and second feature may not be direct contact.
In the description of the invention, it is necessary to explanation, unless otherwise prescribed and limit, term " installation ", " connected ",
" connection " should be interpreted broadly, for example, it may be mechanical connection or electrical connection or the connection of two element internals, can
To be to be joined directly together, can also be indirectly connected by intermediary, for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
With reference to following description and accompanying drawing, it will be clear that these and other aspects of embodiments of the invention.In these descriptions
In accompanying drawing, some particular implementations in embodiments of the invention are specifically disclosed, to represent to implement the implementation of the present invention
Some modes of the principle of example, but it is to be understood that the scope of embodiments of the invention is not limited.On the contrary, the present invention
Embodiment includes all changes, modification and the equivalent fallen into the range of the spirit and intension of attached claims.
The problem of can not adjusting Defrost mode according to particular condition in use for air conditioner in correlation technique, the present invention is implemented
Example proposes a kind of air conditioner defrosting control method and device, can be according to defrosting of the particular condition in use of air conditioner to air conditioner
Calibrated automatically into temperature, and then the weak point in correlation technique can be overcome.
Air conditioner defrosting control method and the air conditioner defrosting proposed according to embodiments of the present invention is described with reference to the accompanying drawings
Device.
Fig. 1 is the flow chart according to the air conditioner defrosting control method of one embodiment of the invention.As shown in figure 1, this hair
The air conditioner defrosting control method of bright embodiment comprises the following steps：
S1, when outdoor environment temperature, which is less than defrosting, enters temperature, control air conditioner is defrosted.
Specifically, electric expansion valve opens when the defrosting entry condition of air conditioner can enter temperature, defrosting including defrosting
Degree, the rotating speed of outdoor fan, the air conditioner defrosting control method of the embodiment of the present invention is based on cooling and warming Defrost mode, to air-conditioning
Defrosting when device defrosts is corrected as the case may be into temperature.When air conditioner carries out heating operation, outdoor heat exchanger table
The easy frosting of face, then on the basis of other defrosting conditions are met, enter temperature when the outdoor environment temperature of detection is less than defrosting
When, control air conditioner is defrosted, that is, controls the four-way valve power-off commutation of air conditioner, now air conditioner is freezed, and outdoor is changed
Hot device distributes heat, can promote white thawing, so as to reach the purpose of defrosting.
S2, defrosting time is obtained, and determine the gear section residing for defrosting time.
During control air conditioner is defrosted, defrosting time is obtained, defrosting time can changing according to four-way valve
Obtained to time interval, such as shown in Fig. 2 wherein（a）（b）（c）Compressor, four-way valve when respectively air conditioner is defrosted
With the action schematic diagram of outdoor fan.When air conditioner is heated（Compressor is in " opening " state）, control air conditioner to be removed
Frost process be：Compressor is controlled to stop（Compressor is in " stopping " state）, four-way valve powers off commutation at O1, and defrosting starts,
Outdoor fan is closed simultaneously.After the first preset time, control compressor start, then now air conditioner carries out refrigerating operaton,
After the second preset time, control compressor stops, and controls four-way valve, such as at O2, upper electricity is commutated, defrosting knot
Beam, wherein outdoor fan are opened before defrosting terminates.Then the time between four-way valve powers off commutation and upper electricity commutates removes
White time Tr.And then the gear section according to residing for defrosting time can determine defrosting time.
For the different frosting situation of air conditioner, defrosting time is typically no less than 3 minutes, and no more than 10 minutes.Example
As in some embodiments of the invention, three gear sections can be divided into according to defrosting time, such as gear section can be with
Meet following condition：3min<G1≤5.5min, wherein, G1 is the first gear section；5.5min<G2≤7.5min, wherein, G2
For the second gear section；7.5min<G3≤10min, wherein, G3 is third gear section.Different gear sections is corresponding different
Four-way valve commutating period interval, that is, correspond to different defrosting times, different defrosting times then reflects different frosting situations.
It can determine which gear section be according to the defrosting time of acquisition, and then perform step S3.
S3, be corrected according to gear section to defrosting into temperature, and using the defrosting after correction enter temperature as
The entrance temperature to defrost next time.
Specifically, in correlation technique, in frosting than more serious area, outdoor heat exchanger frosting situation is than more serious, frost
Layer is thicker, and comfortableness when influenceing air conditioner heat-production, it is necessary to enter defrosting program in advance；And it is regional in slight frosting, may
When meeting defrosting condition, outdoor heat exchanger is frostless or frosting unobvious, has no effect on the heating operation of air conditioner, without carrying out
Defrost program, if using same defrosting entry condition in severe frosting area and slight frosting area, easily causes defrosting
It is ineffective, influence the heating effect of air conditioner.And the air conditioner defrosting control method of the embodiment of the present invention, can be according to step
Gear section in S2 residing for defrosting time, be corrected to defrosting into temperature, and it is calibrated after defrosting enter temperature
As the entrance temperature to defrost next time, that is, the new defrosting for adapting to use environment enters temperature, so as to for different gas
The frosting situation of regional air conditioner is waited, the defrosting for correcting air conditioner enters temperature.
In some embodiments of the invention, defrosting enters temperature and can determined according to last time defrosting time, and then according to
Gear section residing for last time defrosting time corrects defrosting next time and enters temperature automatically, such as reduces defrosting and enter temperature, improve
Defrosting is into temperature or maintains defrosting to enter temperature.In addition, corresponding each gear section can set corresponding multiple defrostings
Into temperature.Specifically, defrosting time corresponding to different gear sections is different, it is to be understood that for the first gear area
Between defrosting time corresponding to G1 it is shorter, it is believed that frosting is in confused situation aobvious, and air conditioner can continue heating operation, be not required to
To enter defrosting in advance to act, then can reduce defrosting and enter temperature.Further, corresponding to the first gear section according to difference
Situation different defrostings can also be set to enter temperature, such as can correspond to defrosting for G1 sections and enter temperature TID3<
TID2<TID1<TI, wherein, TID1, TID2, TID3 are respectively that defrosting corresponding to G1 sections enters temperature, TI for initially defrost into
Enter temperature.It is longer for defrosting time corresponding to the G3 of third gear section, it is believed that frosting situation is serious, and air conditioner needs to carry
Defrosting action is advanced into, then can improve defrosting and enter temperature.Further, corresponding to third gear section according to different feelings
Condition can also set different defrostings to enter temperature, such as can correspond to defrosting for G3 sections and enter temperature TI<TIU1<TIU2
<TIU3, wherein, TIU1, TIU2, TUI3 are respectively that defrosting corresponding to G3 sections enters temperature, and TI enters temperature for initial defrosting.
Moderate for defrosting time corresponding to the second gear section G2, air conditioner can more preferably realize defrosting, that is to say, that acquisition
Defrosting is adapted to current environment into temperature, then can keep into temperature entering with this defrosting when being defrosted next time
Row Defrost operation.
Specifically, in some embodiments of the invention, when defrosting time is in the first gear section, reduction defrost into
Enter temperature so that the first defrosting is entered into temperature as the entrance temperature to defrost next time, wherein, the first defrosting is less than into temperature
Initial defrosting enters temperature.When defrosting time is in the first gear section twice in succession, reduces defrosting and enter temperature with by the
Two defrostings enter temperature and enter temperature as the entrance temperature to defrost, the second defrosting next time and enter temperature less than the first defrosting；
When defrosting time is continuously in the first gear section three times, reduce defrosting enter temperature using by the 3rd defrosting enter temperature as
The entrance temperature to defrost next time, the 3rd defrosting enter temperature and enter temperature less than the second defrosting.For example, setting TI=- 3 DEG C, reduce
Defrosting enter temperature TID and improve defrosting into the change step of temperature TIU temperature range be 1 DEG C, then TID1=- 4 DEG C,
TID2=- 5 DEG C, TID3=- 6 DEG C；TIU1=- 2 DEG C, TIU2=- 1 DEG C, TIU3=0 DEG C.For example, in slight frosting area, when satisfactionization
During ice-lolly part, outdoor heat exchanger is frostless or frosting unobvious, now meets defrosting condition, then controls air conditioner to be defrosted.
After air conditioner start, can be defined when being defrosted for the first time by initial defrosting into temperature, when outdoor environment temperature is less than-
At 3 DEG C, control air conditioner is defrosted, and detection four-way valve commutating period interval judges the defrosting to obtain defrosting time
The gear section that time is in, for example, if defrosting time is in the first gear section when being G1 sections, then it is considered that frosting
In confused situation aobvious, air conditioner can continue heating operation, it is not necessary to acted in advance into defrosting, then can reduce defrost into
Enter temperature so that the first defrosting is entered into temperature TID1=- 4 DEG C as the entrance temperature to defrost next time, temperature is being entered to defrosting
After being corrected, after compressor is continuously run such as 30 minutes, on the basis of defrosting condition is met, air conditioner starts newly
Defrosting process, carry out a new round defrosting correction.
Specifically, in some embodiments of the invention, when defrosting time is in third gear section, rise defrost into
Enter temperature so that the 4th defrosting is entered into temperature as the entrance temperature to defrost next time, the 4th defrosting is more than into temperature initially to remove
White temperature；When defrosting time is in third gear section twice in succession, rise defrosting enters temperature so that the 5th defrosting to be entered
Temperature enters temperature and enters temperature more than the 4th defrosting as the entrance temperature to defrost, the 5th defrosting next time；Work as defrosting time
It is continuous when be in third gear section three times, rise defrosting enter temperature using by the 6th defrosting into temperature as defrosting next time
Entrance temperature, the 6th defrosting enter temperature be more than the 5th defrosting enters temperature.For example, in severe frosting area, outdoor heat exchange
Device frosting layer is thicker, obtains defrosting time and judges the gear section residing for defrosting time, if defrosting time is in third gear
Position section is G3 sections, then shows that frosting situation is serious, has influenceed comfortableness when air conditioner heat-production is run, it is necessary to enter in advance
Enter defrosting process, then can improve defrosting and enter temperature so that the 4th defrosting is entered into temperature TIU1=- 2 DEG C as defrosting next time
Entrance temperature, to defrosting be corrected into temperature after, compressor continuously operation such as 30 minutes after, satisfaction remove
On the basis of ice-lolly part, air conditioner starts new defrosting process, carries out the defrosting correction of a new round.
Specifically, in some embodiments of the invention, when defrosting time is in the second gear section, maintain with current
Defrosting enters temperature as the entrance temperature to defrost next time.For example, it is G2 areas that if defrosting time, which is in the second gear section,
Between, then maintain to enter temperature as defrosting next time using when secondary defrosting enters temperature, carry out the defrosting regulation of a new round.
Based on it is above-mentioned air conditioner is defrosted when defrosting into temperature trimming process, the present invention a specific embodiment
In, as shown in figure 3, the basic process of air conditioner defrosting control method can include：
S301, defrosted according to initially defrosting into temperature control air conditioner.
S302, defrosting start.
S303, defrosting terminate, and obtain defrosting time.
S304, judge the gear section residing for defrosting time.
If defrosting time is in the first gear section G1, step S305 is performed, if defrosting time is in second gear
Position section, then perform step S306, if defrosting time is in third gear section, performs step S307.
S305, reduce defrosting and enter temperature, and obtain defrosting next time and enter temperature.
S306, initial defrosting is maintained to enter temperature.
S307, rise defrosting enter temperature, and obtain defrosting next time and enter temperature.
Temperature correction is being entered to defrosting, it is determined that new defrosting enters after temperature, control air conditioner carries out a new round
Defrosting process.
In summary, the air conditioner defrosting control method of the embodiment of the present invention, by obtaining defrosting time, it is determined that during defrosting
Between residing gear section, be corrected according to gear section to defrosting into temperature, and then temperature is entered with the defrosting after correction
Degree control air conditioner carries out new defrosting process, can be directed to the specific frosting situation control air conditioner of different regions air conditioner and enter
Row defrosting, improves comfortableness during air conditioner heat-production.In addition, the air conditioner defrosting control method of the embodiment of the present invention can carry
The reliability of high air-conditioner refrigerating system, reduce energy consumption.
The air-conditioner defroster proposed according to embodiments of the present invention is described with reference to the accompanying drawings.
Fig. 4 is the air-conditioner defroster according to one embodiment of the present of invention.As shown in figure 4, the embodiment of the present invention
Air-conditioner defroster includes temperature detector 10, time detector 20 and controller 30.Wherein, temperature detector 10 is used to examine
Survey outdoor environment temperature.Four-way valve commutating period interval is to obtain defrosting time when time detector 20 is used to detect defrosting.When
When outdoor environment temperature enters temperature less than defrosting, controller 30 controls air conditioner to be defrosted, and determines residing for defrosting time
Gear section, and be corrected according to gear section to defrosting into temperature, and the defrosting after correction is entered into temperature
As the entrance temperature to defrost next time.
Specifically, as shown in figure 5, the defrosting entry condition of air conditioner can include defrosting into electronics when temperature, defrosting
The aperture of expansion valve, the rotating speed of outdoor fan, the air-conditioner defroster of the embodiment of the present invention are based on cooling and warming Defrost mode,
Defrosting when being defrosted to air conditioner is corrected as the case may be into temperature.When air conditioner carries out heating operation, outdoor is changed
The hot easy frosting in device surface, then on the basis of defrosting condition is met, such as the outdoor environment temperature that temperature detector 10 detects
When entering temperature less than defrosting, controller 30 controls air conditioner to be defrosted, that is, controls the four-way valve power-off commutation of air conditioner, this
When air conditioner freezed, outdoor heat exchanger distributes heat, then can promote white thawing, so as to reach the purpose of defrosting.Four-way
Then defrosting terminates for electricity commutation on valve, when time detector 10 detects the time interval of four-way valve events to obtain the defrosting of air conditioner
Between, controller 30 is by defrosting time to judge that defrosting time is in which gear section, root compared with each gear section
It is corrected according to gear section to defrosting into temperature, and the defrosting after correction is entered into temperature as what is defrosted next time
Enter temperature, and then carry out the defrosting action of a new round.
Wherein, it is typically no less than 3 minutes for the different frosting situation of air conditioner, defrosting time, and no more than 10 points
Clock.Such as in some embodiments of the invention, three gear sections, such as gear section can be divided into according to defrosting time
Following condition can be met：3min<G1≤5.5min, wherein, G1 is the first gear section；5.5min<G2≤7.5min, its
In, G2 is the second gear section；7.5min<G3≤10min, wherein, G3 is third gear section.Different gear sections is corresponding
Different four-way valve commutating period intervals, that is, correspond to different defrosting times, and different defrosting times then reflects different frostings
Situation.
In some embodiments of the invention, controller 30 can determine that defrosting enters temperature according to the defrosting time of last time
Degree, and then the gear section according to residing for last time defrosting time corrects defrosting next time and enters temperature automatically, for example, reduction defrost into
Enter temperature, improve defrosting into temperature or maintain defrosting to enter temperature.In addition, corresponding each gear section can divide accordingly
Multiple defrostings enter temperature.It is specifically, different for defrosting time corresponding to different gear sections, it is to be understood that
It is shorter for defrosting time corresponding to the first gear section G1, it is believed that frosting is in confused situation aobvious, air conditioner can continue into
Row heating operation, it is not necessary to acted in advance into defrosting, then can reduce defrosting and enter temperature.Further, corresponding to first
Gear section can also set different defrostings to enter temperature according to different situations, such as can correspond to and defrost for G1 sections
Into temperature TID3<TID2<TID1<TI, wherein, TID1, TID2, TID3 are respectively that defrosting corresponding to G1 sections enters temperature,
TI enters temperature for initial defrosting.It is longer for defrosting time corresponding to the G3 of third gear section, it is believed that frosting situation is tight
Weight, air conditioner need to enter defrosting action in advance, then can improve defrosting and enter temperature.Further, corresponding to third gear
Section can also set different defrostings to enter temperature according to different situations, such as can correspond to defrosting for G3 sections and enter
Temperature TI<TIU1<TIU2<TIU3, wherein, TIU1, TIU2, TUI3 are respectively that defrosting corresponding to G3 sections enters temperature, and TI is
Initial defrosting enters temperature.Moderate for defrosting time corresponding to the second gear section G2, air conditioner can more preferably be realized and removed
Frost, that is to say, that the defrosting of acquisition is adapted to current environment into temperature, then can keep removing when being defrosted next time
Frost enters temperature.
Specifically, in some embodiments of the invention, when defrosting time is in the first gear section, controller 30 is true
The entrance temperature that fixed first, which defrosts, enters temperature to defrost next time, the first defrosting enter temperature and enter temperature less than initial defrost
Degree；When defrosting time is in the first gear section twice in succession, controller 30 determines that the second defrosting enters temperature for next time
The entrance temperature of defrosting, the second defrosting enter temperature and enter temperature less than the first defrosting；When defrosting time is continuously in institute three times
When stating the first gear section, controller 30 determines that the 3rd defrosting removes into temperature as the entrance temperature to defrost, the 3rd next time
Frost enters temperature and enters temperature less than the second defrosting.Specifically, such as TI=- 3 DEG C are set, reduces defrosting and enter temperature TID and raising
The change step that defrosting enters temperature TIU temperature range is 1 DEG C, then TID1=- 4 DEG C, TID2=- 5 DEG C, TID3=- 6 DEG C；TIU1
=-2 DEG C, TIU2=- 1 DEG C, TIU3=0 DEG C.For example, in slight frosting area, when meeting defrost condition, outdoor heat exchanger is frostless
Or frosting unobvious, now meet defrosting condition, then controller 30 controls air conditioner to be defrosted.After air conditioner start,
It can be defined when being defrosted for the first time by initial defrosting into temperature, when outdoor environment temperature is less than -3 DEG C, controller 30
Control air conditioner is defrosted, and time detector 20 detects four-way valve commutating period interval to obtain defrosting time, and then controls
Device 30 judges the gear section that the defrosting time is in, for example, if controller 30 judges that defrosting time is in the first gear section
I.e. G1 sections when, then it is considered that frosting is in confused situation aobvious, air conditioner can continue heating operation, it is not necessary to enter in advance
Defrosting acts, then controller 30 can reduce defrosting and enter temperature so that the first defrosting is entered into temperature TID1=- 4 DEG C as next
The entrance temperature of secondary defrosting, after being corrected to defrosting into temperature, after compressor is continuously run such as 30 minutes,
On the basis of meeting defrosting condition, air conditioner starts new defrosting process, carries out the defrosting correction of a new round.
Specifically, in some embodiments of the invention, when defrosting time is in third gear section, controller 30 is true
It is the entrance temperature to defrost next time that fixed 4th defrosting, which enters temperature, and the 4th defrosting enters temperature and is more than initial defrosting temperature；When
When defrosting time is in third gear section twice in succession, controller 30 determines that the 5th defrosting defrosts next time into temperature
Into temperature, the 5th defrosting enters temperature and enters temperature more than the 4th defrosting；When defrosting time is continuously in third gear three times
During section, it is the entrance temperature to defrost next time that controller 30, which determines that the 6th defrosting enters temperature, and it is big that the 6th defrosting enters temperature
Enter temperature in the 5th defrosting.For example, in severe frosting area, outdoor heat exchanger frosting layer is thicker, and time detector 20 obtains
Defrosting time, and then gear section of the controller 30 according to residing for defrosting time judges defrosting time, if defrosting time is in
Third gear section is G3 sections, then shows that frosting situation is serious, influenceed air conditioner heat-production operation when comfortableness, it is necessary to
Enter defrosting process in advance, then controller 30 can improve defrosting into temperature so that the 4th defrosting is entered into temperature TIU1=- 2 DEG C
As the entrance temperature to defrost, after being corrected to defrosting into temperature, compressor continuously such as 30 points of operation next time
After clock, on the basis of defrosting condition is met, air conditioner starts new defrosting process, carries out the defrosting correction of a new round.
Specifically, in some embodiments of the invention, when defrosting time is in the second gear section, controller 30 is tieed up
Hold using current defrosting and be used as the entrance temperature to defrost next time into temperature.For example, if defrosting time is in the second gear area
Between i.e. G2 sections, then maintain will when time defrosting enter temperature as next time defrost enter temperature, carry out the defrosting of a new round
Regulation.
In summary, the air-conditioner defroster of the embodiment of the present invention, the detection of passage time detector obtain air conditioner
Defrosting time, and then controller judges the gear section residing for defrosting time, and according to gear section to defrosting into temperature
Row correction, so as to be defrosted for the specific frosting situation control air conditioner of different regions air conditioner, improve air-conditioning
Comfortableness when device heats.In addition, the air-conditioner defroster of the embodiment of the present invention can improve air-conditioner refrigerating system can
By property, energy consumption is reduced.
Any process or method described otherwise above description in flow chart or herein is construed as, and represents to include
Module, fragment or the portion of the code of the executable instruction of one or more the step of being used to realize specific logical function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discuss suitable
Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment（As computer based system including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction）Use, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress used with reference to these instruction execution systems, device or equipment
Put.The more specifically example of computer-readable medium（Non-exhaustive list）Including following：Electricity with one or more wiring
Connecting portion（Electronic installation）, portable computer diskette box（Magnetic device）, random access memory（RAM）, read-only storage
（ROM）, erasable edit read-only storage（EPROM or flash memory）, fiber device, and portable optic disk is read-only deposits
Reservoir（CDROM）.In addition, computer-readable medium, which can even is that, to print the paper of described program thereon or other are suitable
Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage
Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, have suitable combinational logic gate circuit application specific integrated circuit, programmable gate array（PGA）, scene
Programmable gate array（FPGA）Deng.
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method carries
Suddenly it is that by program the hardware of correlation can be instructed to complete, described program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, can also
That unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould
Block can both be realized in the form of hardware, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized in the form of software function module and as independent production marketing or in use, can also be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only storage, 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 the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any
One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is by appended claims and its equivalent limits.
Claims (4)
1. a kind of air conditioner defrosting control method, it is characterised in that comprise the following steps：
When outdoor environment temperature, which is less than defrosting, enters temperature, control air conditioner is defrosted；
Defrosting time is obtained, and determines the gear section residing for the defrosting time；
The defrosting is corrected into temperature according to the gear section, and using the defrosting after correction enter temperature as
The entrance temperature to defrost next time；
Wherein, when the defrosting time is in the first gear section, reduce defrosting and enter temperature so that the first defrosting is entered into temperature
Degree enters temperature and enters temperature less than initial defrosting as the entrance temperature to defrost, first defrosting next time；
When the defrosting time is in the first gear section twice in succession, reduces defrosting and enter temperature so that second to be defrosted
Enter temperature as the entrance temperature to defrost, second defrosting next time into temperature and be less than the described first defrosting into temperature
Degree；
When the defrosting time is continuously in the first gear section three times, reduces defrosting and enter temperature so that the 3rd to be defrosted
Enter temperature as the entrance temperature to defrost, the 3rd defrosting next time into temperature and be less than the described second defrosting into temperature
Degree；
Wherein, it is corrected, is specifically included to defrosting into temperature according to the gear section：
When the defrosting time is in the second gear section, maintain to enter temperature as defrosting next time using presently described defrosting
Entrance temperature；
Or be corrected according to the gear section to defrosting into temperature, specifically include：
When the defrosting time is in third gear section, raises the defrosting and enter temperature so that the 4th defrosting is entered into temperature
As the entrance temperature to defrost next time, the 4th defrosting enters temperature and enters temperature more than the initial defrosting；
When the defrosting time is in the third gear section twice in succession, raises the defrosting and enter temperature with by the 5th
Defrosting enters temperature and enters temperature as the entrance temperature to defrost, the 5th defrosting next time and enter more than the described 4th defrosting
Temperature；
When the defrosting time is continuously in the third gear section three times, raises the defrosting and enter temperature with by the 6th
Defrosting enters temperature and enters temperature as the entrance temperature to defrost, the 6th defrosting next time and enter more than the described 5th defrosting
Temperature.
2. air conditioner defrosting control method as claimed in claim 1, it is characterised in that the gear section meets：
3min<G1≤5.5min, wherein, G1 is the first gear section；
5.5min<G2≤7.5min, wherein, G2 is the second gear section；
7.5min<G3≤10min, wherein, G3 is third gear section.
A kind of 3. air-conditioner defroster, it is characterised in that including：
Temperature detector, for detecting outdoor environment temperature；
Time detector, four-way valve commutating period interval is to obtain defrosting time when being defrosted for detecting；
Controller, when the outdoor environment temperature, which is less than defrosting, enters temperature, the controller control air conditioner is defrosted,
And the gear section residing for the defrosting time is determined, and school is carried out into temperature to the defrosting according to the gear section
Just, and using the defrosting after correction temperature is entered as the entrance temperature to defrost next time, wherein, when the defrosting time is in
During the first gear section, it is the entrance temperature that defrosts next time that the controller, which determines that the first defrosting enters temperature, described first
Defrosting enters temperature and enters temperature less than initial defrosting, when the defrosting time is in the first gear section twice in succession
When, it is the entrance temperature to defrost next time that the controller, which determines that the second defrosting enters temperature, and second defrosting enters temperature
Enter temperature less than the described first defrosting, when the defrosting time is continuously in the first gear section three times, the control
Device processed determines that the 3rd defrosting enters temperature and enters temperature less than described as the entrance temperature to defrost, the 3rd defrosting next time
Second defrosting enters temperature；
Wherein, when the defrosting time is in the second gear section, the controller maintains to enter temperature with presently described defrosting
Degree is as the entrance temperature to defrost next time；
Or when the defrosting time is in third gear section, under the controller determines that the 4th defrosting is into temperature
The entrance temperature once to defrost, the 4th defrosting enter temperature and enter temperature more than the initial defrosting；
When the defrosting time is in the third gear section twice in succession, the controller determines that the 5th defrosting enters temperature
The entrance temperature for spending to defrost next time, the 5th defrosting enter temperature and enter temperature more than the described 4th defrosting；
When the defrosting time is continuously in the third gear section three times, the controller determines that the 6th defrosting enters temperature
The entrance temperature for spending to defrost next time, the 6th defrosting enter temperature and enter temperature more than the described 5th defrosting.
4. air-conditioner defroster as claimed in claim 3, it is characterised in that the gear section meets：
3min<G1≤5.5min, wherein, G1 is the first gear section；
5.5min<G2≤7.5min, wherein, G2 is the second gear section；
7.5min<G3≤10min, wherein, G3 is third gear section.
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| CN201410015085.0A CN104776549B (en) | 2014-01-13 | 2014-01-13 | Air conditioner defrosting control method and defroster |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107842970B (en) * | 2017-10-18 | 2019-10-01 | 广东美的暖通设备有限公司 | Air-conditioning system and its defrosting control method and device |
| CN109780683B (en) * | 2019-01-24 | 2022-02-18 | 青岛海尔空调电子有限公司 | Air conditioner control method and device and air conditioner |
| CN110207315A (en) * | 2019-06-06 | 2019-09-06 | 珠海格力电器股份有限公司 | A kind of air conditioner outdoor machine defrosting method, air-conditioning system |
| CN111174374B (en) * | 2020-01-06 | 2020-12-08 | 珠海格力电器股份有限公司 | Control method and device of air conditioner, storage medium and air conditioner |
| CN111189268B (en) * | 2020-01-14 | 2021-07-06 | 广东芬尼能源技术有限公司 | Defrosting control method for variable frequency heat pump |
| CN112902389B (en) * | 2021-02-08 | 2022-02-11 | 珠海格力电器股份有限公司 | Method, device and equipment for defrosting air conditioner and storage medium |
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| CN1204029A (en) * | 1997-06-27 | 1999-01-06 | 三星电子株式会社 | Defrosting apparatus of air conditioner and method thereof |
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