CN110454915A - Air-conditioning system and its control method - Google Patents
Air-conditioning system and its control method Download PDFInfo
- Publication number
- CN110454915A CN110454915A CN201910716101.1A CN201910716101A CN110454915A CN 110454915 A CN110454915 A CN 110454915A CN 201910716101 A CN201910716101 A CN 201910716101A CN 110454915 A CN110454915 A CN 110454915A
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- China
- Prior art keywords
- defrost
- air
- conditioning system
- fin
- heat exchanger
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
Abstract
The invention discloses a kind of air-conditioning system and its control methods, wherein air conditioning control method includes: to determine the type of the outdoor heat exchanger of the air-conditioning system when the air-conditioning system enters defrost state；It is opened during defrost and/or after defrost according to the outdoor fan of air-conditioning system described in the Type Control of the outdoor heat exchanger, blows water to carry out pressure to the outdoor heat exchanger.It is directed to the Frost formation process of different type air-conditioning system outdoor heat exchanger as a result, selects different defrost strategies, thus, it is possible to shorten the defrost time, reduces influence of the defrost to room temperature, improves the comfort of user.
Description
Technical field
The present invention relates to air-conditioning technical field more particularly to a kind of air-conditioning systems and its control method.
Background technique
In the related technology, the defrost mode of air-conditioning system is to be flowed by four-way Vavle switching refrigerant, is made in outdoor heat exchanger
Full of high temperature refrigerant, and then make outdoor heat exchanger defrost.But this defrost process time is too long, will lead to room temperature change
Change larger, comfort reduction.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, the first purpose of this invention is to propose a kind of control method of air-conditioning system, for different types of
The Frost formation process of outdoor heat exchanger selects different defrost strategies, shortens the defrost time, reduces defrost to the shadow of room temperature
It rings, improves the comfort of user.
Second object of the present invention is to propose a kind of air-conditioning system.
To achieve the above object, the first aspect of the present invention embodiment proposes a kind of control method of air-conditioning system, should
Method includes: to determine the type of the outdoor heat exchanger of the air-conditioning system when the air-conditioning system enters defrost state；According to
The outdoor fan of air-conditioning system described in the Type Control of the outdoor heat exchanger is opened during defrost and/or after defrost
It opens, blows water to carry out pressure to the outdoor heat exchanger.
The control method of the air-conditioning system proposed according to embodiments of the present invention, according to the type of air-conditioning system outdoor heat exchanger
The outdoor fan of control air-conditioning system is opened during defrost and/or after defrost, to carry out pressure to outdoor heat exchanger
Water is blown, the Frost formation process of different type air-conditioning system outdoor heat exchanger is directed to as a result, selects different defrost strategies, thus, energy
Enough shorten the defrost time, reduces influence of the defrost to room temperature, improve the comfort of user.
In addition, the control method of the air-conditioning system proposed according to embodiments of the present invention, can also have following additional skill
Art feature:
According to one embodiment of present invention, the type of the outdoor heat exchanger includes spacing of fin and fin type.
According to one embodiment of present invention, when the spacing of fin is greater than default spacing and the fin type is hydrophilic
When type fin or common fin, controls the outdoor fan and opened after defrost.
According to one embodiment of present invention, when the spacing of fin is less than or equal to default spacing and the fin type
When for hydrophobic type fin or super-hydrophobic fin, the outdoor fan is controlled during defrost and defrost degree reaches the first journey
It is opened when angle value, and controls the outdoor fan and opened after defrost.
According to one embodiment of present invention, when the spacing of fin is greater than default spacing and the fin type is hydrophobic
When type fin or super-hydrophobic fin, the outdoor fan is controlled during defrost and when defrost degree reaches the second degree value
It opens.
According to one embodiment of present invention, the decline which passes through the ice layer thickness of the outdoor heat exchanger
The ratio relative to the defrost deadline of capacity or defrost time of condensed water after being merged during amount or defrost, determine described in
Defrost degree.
According to one embodiment of present invention, the outdoor fan has multiple wind wheels, controls the room of the air-conditioning system
It includes: to control the revolving speed of the multiple wind wheel successively to improve with pre-set priority to preset rotation speed that outer blower, which is opened,；Alternatively, control
The revolving speed of the multiple wind wheel is improved simultaneously with identical acceleration to preset rotation speed.
According to one embodiment of present invention, after the air-conditioning system heating operation, the outdoor fan is controlled
It opens to preset and blows the water time, blow water to carry out pressure to the outdoor heat exchanger.
According to one embodiment of present invention, the control method further include: the outdoor fan reversion is controlled, it is negative to generate
Pressure.
To achieve the above object, the bright second aspect embodiment of this law proposes a kind of control system of air-conditioning, the system packet
It includes: outdoor fan；Control device, the control device are connected with the outdoor fan, and the control device is used in the sky
When adjusting system enters defrost state, the type of the outdoor heat exchanger of the air-conditioning system is determined, and according to the outdoor heat exchanger
Type Control described in the outdoor fan of air-conditioning system opened during defrost and/or after defrost, to the outdoor
Heat exchanger carries out pressure and blows water.
The air-conditioning system proposed according to embodiments of the present invention, according to the Type Control air-conditioning system of air-conditioning system outdoor heat exchanger
The outdoor fan of system is opened during defrost and/or after defrost, blows water to carry out pressure to outdoor heat exchanger, thus,
The defrost time can be shortened, influence of the defrost to room temperature is reduced, improve the comfort of user.
To achieve the above object, third aspect present invention embodiment proposes a kind of readable storage medium storing program for executing, is stored thereon with
The control program of air-conditioning system when the control program of the air-conditioning system is executed by processor, is able to achieve above-mentioned air-conditioning system
Control method.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, in which:
Fig. 1 is the flow diagram according to the control method of the air-conditioning system of the embodiment of the present invention；
Fig. 2 is hydrophily, the schematic illustration of hydrophobicity and super-hydrophobicity；
Fig. 3 is the contact angle according to the different fin types of the outdoor heat exchanger of the air-conditioning system of one embodiment of the invention
Schematic diagram；
Fig. 4 is the effect picture according to the control method of the air-conditioning system of a specific embodiment of the invention；
Fig. 5 is the flow diagram according to the control method of the air-conditioning system of one embodiment of the invention；And
Fig. 6 is the block diagram according to the air-conditioning system of the embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
It is first simple to introduce lower outdoor heat exchanger below before the control method of the air-conditioning system of the description embodiment of the present invention
Material type.
It should be noted that the interaction situation between hydrone and different solid material surfaces is different.
In the point of intersection of water (liquid phase), material (solid phase) and air (gas phase) three-phase, along the tangent line and water and material of water drops surface
Face is formed by angle theta and is known as contact angle, and the angle θ can estimate wetness degree between 0 °~180 °, by the size at the angle θ.Such as Fig. 2 institute
Show, if θ < 90 °, material is hydrophilic；If 90 ° < θ < 150 °, material is hydrophobic；If when θ > 150 °, material is
Super-hydrophobicity.
Outdoor heat exchanger can be made of hydrophilic metal, common metal, hydrophobic metals or super-hydrophobic metal, for example,
Metal can be aluminium, as shown in figure 3, the contact angle θ of hydrophily aluminium is 13.2 °, it is hydrophilic material；The contact angle of universality aluminium
θ is 112.4 °, is hydrophobic material；The contact angle θ of hydrophobicity aluminium is 140.5 °, is hydrophobic material；The contact of Super-hydrophobic aluminium
Angle θ is 154.9 °, is super hydrophobic material.
Present inventor has found and recognizes that different fin types, has different frostings in outdoor heat exchanger
Journey, for example, the fin type of outdoor heat exchanger can be hydrophily aluminium, conventional aluminium, hydrophobicity aluminium or Super-hydrophobic aluminium, wherein Fig. 4
Show hydrophily aluminium, conventional aluminium, hydrophobicity aluminium when heat pamp respectively reaches 6 minutes, 10 minutes, 30 minutes and 60 minutes
With the frosting situation of Super-hydrophobic aluminium these four materials.From fig. 4, it can be seen that hydrophilic fin frosting initial range is wider, but nucleus
Density is small, and white density is equally smaller, and as the time increases, the density of frost thickness and frost layer is gradually increased, but compared with hydrophobic wing
Piece frosting density is small, and heat exchanger performance impact effect is smaller, and the defrost time is long, easily leads to next defrost in many position ponding
Period frosting velocity increases, wherein the frosting situation of common fin and hydrophilic fin are closer；And the hydrophobic initial model of fin frosting
Enclose smaller, but grain density is big, and white density is equally larger, and as the time increases, the density of frost thickness and frost layer is gradually increased,
Bigger compared with hydrophilic fin frosting density, heat exchanger performance impact effect is larger, and the defrost time is short, be not easy ponding in position and
Next defrost period frosting velocity is caused to increase, wherein the frosting situation of super-hydrophobic fin and hydrophobic fin are closer.
Based on this, the embodiment of the present invention proposes a kind of control method of air-conditioning system, and this method can be directed to inhomogeneity
The Frost formation process of the outdoor heat exchanger of type selects different defrost strategies.
Below with reference to the accompanying drawings the air-conditioning system and its control method of the present invention is described in detail embodiment.
Fig. 1 is the flow diagram according to the control method of the air-conditioning system of the embodiment of the present invention.As shown in Figure 1, the control
Method processed includes:
S101: when air-conditioning system enters defrost state, the type of the outdoor heat exchanger of air-conditioning system is determined.
It is appreciated that when air-conditioning system heats at low ambient temperatures, the frosting sometimes of the fin of outdoor heat exchanger, and frosting
Will lead to the degradation of outdoor heat exchanger, the heat of indoor unit, which exports, to be reduced, so when need to carry out defrost processing.For example,
In some embodiments, sensor can be set in air-conditioning system, to detect the frost thickness of the fin of outdoor heat exchanger, when this
When frost thickness reaches preset thickness threshold value, determine that air-conditioning system enters defrost state.
Wherein, the type of outdoor heat exchanger includes spacing of fin and fin type.For example, spacing of fin can be set
Default spacing shows that spacing of fin is big, if fin type is less than or equal to if spacing of fin is greater than the default spacing
The default spacing, then show that spacing of fin is small.In addition, for fin type, hydrophilic fin, common fin, hydrophobic can be divided into
Fin, super-hydrophobic fin etc..
It should be noted that the type of outdoor heat exchanger can be previously written in the control device of air-conditioning system.
S102: according to the outdoor fan of the Type Control air-conditioning system of outdoor heat exchanger during defrost and/or defrost
After open, with to outdoor heat exchanger carry out pressure blow water.
It is understood that outdoor fan can be arranged with respect to outdoor heat exchanger, after outdoor fan starting, can be blown to outdoor heat exchanger
Wind carries out pressure to outdoor heat exchanger and blows water.Wherein, during defrost, such as proceed to ice sheet in defrost and fin goes out
When being now clearly separated, outdoor fan is opened, will be blown off fin surface with the mixture of ice and water that fin is not combined closely, it can be with
Shorten the time in current defrost period；After defrost, outdoor fan is opened, the ponding on fin is blown away, prevents next week
Phase frosting velocity is accelerated, and the interval time between next defrost period and current defrost period is extended.
The control method of the air-conditioning system of the embodiment of the present invention as a result, for different type air-conditioning system outdoor heat exchanger
Frost formation process, select different defrost strategies, thus, it is possible to shorten the defrost time, reduce influence of the defrost to room temperature,
Improve the comfort of user.
Specifically, according to one embodiment of present invention, outdoor fan can be counter-rotating fan, for example, outdoor fan can
With with multiple wind wheels, the outdoor fan unlatching for controlling air-conditioning system includes: to control the revolving speed of multiple wind wheels with pre-set priority
It successively improves to preset rotation speed；Alternatively, control the revolving speed of multiple wind wheels with identical acceleration while improving to preset rotation speed.
For example, when wind wheel there are two having when outdoor fan, respectively level-one wind wheel and second level wind wheel, pre-set priority
It can be raising second level wind wheel after first elevated by one step wind wheel, or can be elevated by one step wind wheel after first raising second level wind wheel, example
Such as, when increasing second level wind wheel after pre-set priority is first elevated by one step wind wheel, level-one wind wheel first starts, and improves revolving speed to pre-
If after revolving speed, starting after second level wind wheel, and revolving speed is improved to preset rotation speed；It is risen after being first to increase second level wind wheel when pre-set priority
When high level-one wind wheel, second level wind wheel first starts, and after improving revolving speed to preset rotation speed, starts after level-one wind wheel, and improve revolving speed
To preset rotation speed.It should be noted that the speed-raising acceleration of two wind wheels can be identical, and it can not also be identical, as long as can guarantee Gao You
First grade wind wheel raises speed prior to low priority wind wheel to preset rotation speed.
When there are two when wind wheel, also can control the two wind wheels quickly to open with same acceleration simultaneously for outdoor fan tool
The dynamic revolving speed that improves is to preset rotation speed.
Wherein, preset rotation speed can be each wind wheel highest achieved and the revolving speed of not stall.
It should be noted that the unlatching of the outdoor fan of control air-conditioning system is unlatching or defrost knot during defrost
It opens after beam, or can all be opened during defrost and after defrost, this depends on the type of outdoor heat exchanger, that is, depends on
The type of the spacing of fin and fin in outdoor heat exchanger, the following detailed description of.Wherein,
1) according to the outdoor fan of the Type Control air-conditioning system of outdoor heat exchanger is during defrost and/or defrost terminates
It opens afterwards and includes:
When spacing of fin is greater than default spacing and fin type is hydrophilic fin or common fin, outdoor fan is controlled
It is opened after defrost.
It is understood that when spacing of fin is big and fin type is hydrophilic fin or common fin, it is normal to execute defrost
Journey, after defrost process, control outdoor fan is opened, such as outdoor fan can continue to open the first preset time, with
It carries out pressure and blows water, thus, it is possible to blow away since fin hydrophily bring moisture film is assembled, prevent moisture film from the next period being caused to be tied
White speed is accelerated.
2) according to the outdoor fan of the Type Control air-conditioning system of outdoor heat exchanger is during defrost and/or defrost terminates
It opens afterwards and includes:
When spacing of fin is less than or equal to default spacing and fin type is hydrophobic type fin or super-hydrophobic fin, control
Outdoor fan processed controls outdoor fan and terminates in defrost during defrost and unlatching when defrost degree reaches the first degree value
After open.
It is understood that when spacing of fin is small and fin type is hydrophobic type fin or super-hydrophobic fin, in defrost process
In and defrost degree when reaching the first degree value X%, control outdoor fan is opened, such as outdoor fan can continue to open second
Preset time blows water to carry out high pressure, will blow off fin surface with the mixture of ice and water that fin is not combined closely, then proceed into
Row defrost process, to defrost process after, again control outdoor fan open, such as outdoor fan can continue open third
Preset time blows water to carry out high pressure, thus, it blows away due to the problems such as spacing of fin is too small and bring water bridge, prevents water bridge
Next period frosting velocity is caused to be accelerated.
3) according to the outdoor fan of the Type Control air-conditioning system of outdoor heat exchanger is during defrost and/or defrost terminates
It opens afterwards and includes:
When spacing of fin is greater than default spacing and fin type is hydrophobic type fin or super-hydrophobic fin, outside control room
Blower is during defrost and unlatching when defrost degree reaches the second degree value.
It is understood that when spacing of fin is big and fin type is hydrophobic type fin or super-hydrophobic fin, in defrost process
In and defrost degree when reaching the second degree value Y%, control outdoor fan is opened, such as outdoor fan can continue to open the 4th
Preset time blows water to carry out high pressure, will blow off fin surface with the mixture of ice and water that fin is not combined closely, then proceed into
Row defrost process, to the end of defrost process, normal termination.
4) when spacing of fin is small and fin type is hydrophilic fin or common fin, outdoor fan is after defrost
Not positive action utilizes the heat of vaporization water bridge in heat exchanger.
As described above, in conjunction with Fig. 5, the control method of the embodiment of the present invention the following steps are included:
S501: defrost starts.
S502: judge spacing of fin and fin type.
When spacing of fin is small and fin type is hydrophilic or common fin, step S503 is executed；When spacing of fin is big
And fin type be hydrophilic or common fin when, execute step S505；When spacing of fin is small and fin type be hydrophobic type or
When super-hydrophobic fin, step S507 is executed, when spacing of fin is big and fin type is hydrophobic type or super-hydrophobic fin, is held
Row step S509.
S503: spacing of fin is small and fin type is hydrophilic or common fin.
S504: outdoor fan not positive action after defrost.
S505: spacing of fin is big and fin type is hydrophilic or common fin.
S506: outdoor fan pressure after defrost blows water and continues the first preset time.
S507: spacing of fin is small and fin type is hydrophobic type or super-hydrophobicity fin.
S508: outdoor fan high pressure after defrost blows water and continues the second preset time, then proceedes to keep defrost, change
Sub-high pressure blows water and continues third preset time again after frost.
S509: spacing of fin is big and fin type is hydrophobic type or super-hydrophobic fin.
S510: outdoor fan high pressure after defrost blows water and continues the 4th preset time, then proceedes to keep defrost, change
Attonity after frost, normal termination.
In some embodiments of the invention, defrost degree can be by the slippage of the ice layer thickness of outdoor heat exchanger Lai really
It is fixed, for example, the ice layer thickness of outdoor heat exchanger can be detected by ice layer thickness sensor, when ice layer thickness sensor detects ice
When thickness degree declines the first percentage, it can determine whether that defrost degree has reached the first degree value, when ice layer thickness sensor detects
When ice layer thickness declines the second percentage, it can determine whether that defrost degree has reached the second degree value, as an example, the first degree
Value and the second degree value can take identical value such as 50%, can also take different value.
Alternatively, defrost degree can also be determined by the capacity of the condensed water melted after defrost, for example, can be examined by sensor
The condensation water capacity melted after defrost is surveyed, when detecting that condensation water capacity reaches the first capability value, can determine whether defrost degree
Reach the first degree value, when detecting that condensation water capacity reaches the second capability value, can determine whether that defrost degree has reached the second journey
Angle value, as an example, the first degree value and the second degree value can take identical value example 700ml, can also take different value.
Alternatively, defrost degree can also be determined by the defrost time relative to the ratio of normal defrost deadline, for example,
A normal defrost deadline can be preset in the control device of air-conditioning system, and (the normal defrost deadline refers in defrost
In the process, the time spent in when outdoor heat exchanger turns to 0 from the fin ice layer thickness for starting defrost to outdoor heat exchanger) in defrost
Timing is carried out to the defrost time by the time set of air-conditioning system in the process, when time set calculate to the defrost time relative to
When the ratio of normal defrost deadline reaches the first ratio, it can determine whether that defrost degree has reached the first degree value, when timing fills
Set calculating to the defrost time reach the second ratio relative to the ratio of normal defrost deadline when, can determine whether that defrost degree has reached
To the second degree value, as an example, the first degree value and the second degree value can take identical value 80%, can also take difference
Value.
Further, according to one embodiment of present invention, after air-conditioning system heating operation, it can control outdoor
Blower, which is opened to preset, blows the water time, blows water to carry out pressure to outdoor heat exchanger, makes remaining water and white whole or portion on fin
Divide and evaporates.
Further, according to one embodiment of present invention, after air-conditioning system heating operation, in outdoor fan pair
After outdoor heat exchanger blows water, control outdoor fan reversion controls multiple wind wheels and inverts, to generate negative pressure, thus, benefit
The foreign matter and dust of outdoor fan sucking are removed with the negative pressure of reversion.
The control method of the air-conditioning system proposed according to embodiments of the present invention, according to the type of air-conditioning system outdoor heat exchanger
The outdoor fan of control air-conditioning system is opened during defrost and/or after defrost, to carry out pressure to outdoor heat exchanger
Water is blown, thus, it is possible to shorten the defrost time, influence of the defrost to room temperature is reduced, improves the comfort of user.
Based on the above embodiment, the invention also provides a kind of air-conditioning systems.
Fig. 6 is the block diagram of air-conditioning system according to an embodiment of the present invention.As shown in fig. 6, the air-conditioning system 601 is wrapped
Include outdoor fan 602 and control device 603.
Wherein, control device 603 is connected with outdoor fan 602, and control device 603 is used in 601 entranceization of air-conditioning system
When white state, the type of the outdoor heat exchanger of air-conditioning system 601 is determined, and according to the Type Control air-conditioning system of outdoor heat exchanger
601 outdoor fan 602 is opened during defrost and/or after defrost, blows water to carry out pressure to outdoor heat exchanger.
Specifically, the type of outdoor heat exchanger includes spacing of fin and fin type, for example, can set for spacing of fin
Default spacing is set, if spacing of fin is greater than the default spacing, shows that spacing of fin is big, if fin type is less than or waits
Spacing is preset in this, then shows that spacing of fin is small.In addition, fin type can be divided into hydrophilic fin, common fin, be dredged
Water fin, super-hydrophobic fin etc..
In addition, it is necessary to which explanation, the type of outdoor heat exchanger can be previously written the control device of air-conditioning system 601
In 603.
When air-conditioning system 601 enters defrost state, control device 602 is according to the Type Control air-conditioning system of outdoor heat exchanger
The outdoor fan 602 of system 601 is opened during defrost and/or after defrost, blows water to carry out pressure to outdoor heat exchanger,
Detailed process is as follows for it；
When spacing of fin is less than default spacing and fin type is hydrophilic or plain edition fin, control device 603 is not
Control outdoor fan 602 makes any movement；
When spacing of fin is greater than default spacing and fin type is hydrophilic fin or common fin, control device 603
Control outdoor fan 602 is opened after defrost；
When spacing of fin is less than or equal to default spacing and fin type is hydrophobic type fin or super-hydrophobic fin, control
Device 603 processed controls outdoor fan 602 during defrost and unlatching when defrost degree reaches the first degree value, and outside control room
Blower 602 is opened after defrost；
When spacing of fin is greater than default spacing and fin type is hydrophobic type fin or super-hydrophobic fin, control device
603 control outdoor fans 602 are during defrost and unlatching when defrost degree reaches the second degree value, outdoor wind after defrost
602 attonity of machine.
Specifically, outdoor fan 602 can be counter-rotating fan, such as: counter-rotating fan can have multiple wind wheels, control dress
603 are set when controlling the starting of outdoor fan 602, the revolving speed of multiple wind wheels is can control and is successively improved with pre-set priority to default
Revolving speed, alternatively, control the revolving speed of multiple wind wheels with identical acceleration while improving to preset rotation speed, it should be noted that pre-
If revolving speed can be the attainable highest of each wind wheel and non-stall conditions.
Further, after 601 heating operation of air-conditioning system, control device 603 can control outdoor fan 602 and open
It opens to preset and blows the water time, blow water to carry out pressure to outdoor heat exchanger, make remaining water and all or part of evaporation of frost on fin
Fall.
Further, after 601 heating operation of air-conditioning system, water knot is blown to outdoor heat exchanger in outdoor fan 602
Shu Hou, control device 603 controls outdoor fan 602 and inverts, that is, controls multiple wind wheels and invert, to generate negative pressure, thus, it utilizes
The negative pressure of reversion removes the foreign matter and dust that outdoor fan 602 sucks.
It should be noted that the aforementioned explanation to embodiment of the method is also applied for this system embodiment, herein no longer
It repeats.
The air-conditioning system proposed according to embodiments of the present invention, according to the Type Control air-conditioning system of air-conditioning system outdoor heat exchanger
The outdoor fan of system is opened during defrost and/or after defrost, blows water to carry out pressure to outdoor heat exchanger, thus,
The defrost time can be shortened, influence of the defrost to room temperature is reduced, improve the comfort of user.
To realize above-described embodiment, the invention also provides a kind of computer readable storage mediums, are stored thereon with air-conditioning
The control program of system when the control program of the air-conditioning system is executed by processor, is able to achieve the air-conditioning system such as previous embodiment
The control method of system.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing custom logic function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang function, this should be 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 (such as computer based system, including the system of processor or other can be held from instruction
The instruction fetch of row system, device or equipment and the system executed instruction) it uses, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium ", which can be, any may include, stores, communicates, propagates or pass
Defeated program is for instruction execution system, device or equipment or the dress used in conjunction with these instruction execution systems, device or equipment
It sets.The more specific example (non-exhaustive list) of computer-readable medium include the following: there is the electricity of one or more wirings
Interconnecting piece (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory
(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 can even is that the paper that can print described program on it or other are suitable
Medium, because can then be edited, be interpreted or when 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 section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.Such as, if realized with hardware in another embodiment, following skill well known in the art can be used
Any one of art or their combination are realized: have for data-signal is realized the logic gates of logic function from
Logic circuit is dissipated, the specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene can compile
Journey gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium
In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
It, can also be in addition, each functional unit in each embodiment of the present invention can integrate in a processing module
It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized and when sold or used as an independent product in the form of software function module, also can store in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..Although having been shown and retouching above
The embodiment of the present invention is stated, it is to be understood that above-described embodiment is exemplary, and should not be understood as to limit of the invention
System, those skilled in the art can be changed above-described embodiment, modify, replace and become within the scope of the invention
Type.
Claims (11)
1. a kind of control method of air-conditioning system characterized by comprising
When the air-conditioning system enters defrost state, the type of the outdoor heat exchanger of the air-conditioning system is determined；
According to the outdoor fan of air-conditioning system described in the Type Control of the outdoor heat exchanger during defrost and/or defrost knot
It is opened after beam, blows water to carry out pressure to the outdoor heat exchanger.
2. the control method of air-conditioning system according to claim 1, which is characterized in that the type packet of the outdoor heat exchanger
Include spacing of fin and fin type.
3. the control method of air-conditioning system according to claim 2, which is characterized in that described according to the outdoor heat exchanger
Type Control described in the outdoor fan of air-conditioning system opened during defrost and/or after defrost and include:
When the spacing of fin is greater than default spacing and the fin type is hydrophilic fin or common fin, described in control
Outdoor fan is opened after defrost.
4. the control method of air-conditioning system according to claim 2, which is characterized in that described according to the outdoor heat exchanger
Type Control described in the outdoor fan of air-conditioning system opened during defrost and/or after defrost and include:
When the spacing of fin is less than or equal to default spacing and the fin type for hydrophobic type fin or super-hydrophobic fin
When, control the outdoor fan during defrost and unlatching when defrost degree reaches the first degree value, and control the outdoor
Blower is opened after defrost.
5. the control method of air-conditioning system according to claim 2, which is characterized in that described according to the outdoor heat exchanger
Type Control described in the outdoor fan of air-conditioning system opened during defrost and/or after defrost and include:
When the spacing of fin is greater than default spacing and the fin type is hydrophobic type fin or super-hydrophobic fin, control
The outdoor fan is during defrost and unlatching when defrost degree reaches the second degree value.
6. the control method of air-conditioning system according to claim 4 or 5, which is characterized in that wherein, changed by the outdoor
The capacity of condensed water or defrost time are complete relative to defrost after merging during the slippage of the ice layer thickness of hot device or defrost
At the ratio of time, the defrost degree is determined.
7. the control method of air-conditioning system according to claim 1, which is characterized in that the outdoor fan has multiple wind
Wheel, the outdoor fan unlatching for controlling the air-conditioning system include:
It controls the revolving speed of the multiple wind wheel and is successively improved with pre-set priority to preset rotation speed；
Alternatively, control the revolving speed of the multiple wind wheel with identical acceleration while improving to preset rotation speed.
8. the control method of air-conditioning system according to claim 1, which is characterized in that further include:
After the air-conditioning system heating operation, controls the outdoor fan and open to preset and blow the water time, to the room
External heat exchanger carries out pressure and blows water.
9. the control method of air-conditioning system according to claim 1, which is characterized in that further include:
The outdoor fan reversion is controlled, to generate negative pressure.
10. a kind of air-conditioning system characterized by comprising
Outdoor fan；
Control device, the control device are connected with the outdoor fan, the control device be used for the air-conditioning system into
When entering defrost state, the type of the outdoor heat exchanger of the air-conditioning system is determined, and according to the type control of the outdoor heat exchanger
The outdoor fan of the air-conditioning system is made to open during defrost and/or after defrost, with to the outdoor heat exchanger into
Row pressure blows water.
11. a kind of readable storage medium storing program for executing, which is characterized in that it is stored thereon with the control program of air-conditioning system, the air-conditioning system
When control program is executed by processor, the control method of air-conditioning system as claimed in any one of claims 1-9 wherein is realized.
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| CN111895605B (en) * | 2020-08-12 | 2021-10-08 | 珠海格力电器股份有限公司 | Air conditioner defrosting control method and device, air conditioner and computer readable storage medium |
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| CN113294898B (en) * | 2021-06-25 | 2023-03-10 | 美的集团股份有限公司 | Defrosting control method of air conditioner, device and storage medium |
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