CN109114745A - Convertible frequency air-conditioner outdoor heat exchanger automatically cleaning control method and air conditioner - Google Patents
Convertible frequency air-conditioner outdoor heat exchanger automatically cleaning control method and air conditioner Download PDFInfo
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- CN109114745A CN109114745A CN201811010131.2A CN201811010131A CN109114745A CN 109114745 A CN109114745 A CN 109114745A CN 201811010131 A CN201811010131 A CN 201811010131A CN 109114745 A CN109114745 A CN 109114745A
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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
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of convertible frequency air-conditioner outdoor heat exchanger automatically cleaning control method and air conditioners, it the described method comprises the following steps: (1), detecting current outdoor environment temperature Tout, and judge whether current outdoor environment temperature meets into outdoor heat exchanger automatically cleaning control condition, if, then follow the steps (2), otherwise, the control of outdoor heat exchanger automatically cleaning is not executed；(2), outdoor heat exchanger frosting is controlled；(3), the frosting of outdoor heat exchanger institute is melted, completes automatically cleaning control.Convertible frequency air-conditioner outdoor heat exchanger automatically cleaning control method of the invention allows outdoor heat exchanger quickly to tie a large amount of low-density frost in a short time, then quickly melts frost, walk to be attached to the dust on outdoor heat exchanger to wash away.
Description
Technical field
The present invention relates to air-conditioning technical fields, specifically, being to be related to a kind of convertible frequency air-conditioner outdoor heat exchanger automatically cleaning control
Method processed and air conditioner.
Background technique
Air-conditioning either in operation or static condition, can all have dust attachment on indoor external heat exchanger.For interior
The considerations of air quality and indoor heat exchanger heat exchange efficiency, current many brand air-conditioning products apply indoor heat exchanger automatically cleaning
Control method, the cleaning for indoor heat exchanger.Outdoor heat exchanger in outdoor, there is no the operation because of air-conditioning caused by air matter
Amount problem is easy to be ignored by people whether clean, but due to external environment, outdoor heat exchanger is easier to adhere to more
Thicker dust has large effect to the heat exchange property of air conditioner, and conventional indoor heat exchanger automatically cleaning technology is for cleaning
Outdoor heat exchanger, effect are unobvious.
Summary of the invention
The present invention leads to room to solve existing field of air conditioning not specifically for the cleaning control mode of outdoor heat exchanger
The technical issues of external heat exchanger dust stratification and then influence heat exchange property, proposes a kind of convertible frequency air-conditioner outdoor heat exchanger automatically cleaning control
Method can solve the above problem.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following scheme:
A kind of convertible frequency air-conditioner outdoor heat exchanger automatically cleaning control method, comprising the following steps:
(1), current outdoor environment temperature Tout is detected, and judges whether current outdoor environment temperature meets into outdoor heat exchanger
Automatically cleaning control condition otherwise, does not execute the control of outdoor heat exchanger automatically cleaning if so, thening follow the steps (2)；
(2), outdoor heat exchanger frosting is controlled；
(3), the frosting of outdoor heat exchanger institute is melted, completes automatically cleaning control.
Further, before step (2), further include the steps that judging air-conditioning present mode of operation, complete automatically cleaning
After control, the air conditioning operating mode before automatically cleaning control is returned.
Further, in step (1), judge whether current outdoor environment temperature meets into outdoor heat exchanger automatically cleaning control
Condition processed are as follows:
If T1≤Tout≤T2, enters outdoor heat exchanger automatically cleaning and control, otherwise, do not enter, wherein -5 DEG C≤T1≤10
DEG C, 24 DEG C≤T2≤45 DEG C.
Further, step (1) if in be unsatisfactory for entering outdoor heat exchanger automatically cleaning control condition, and user is mentioned
Show informing.
Further, between step (2) and step (3), further include the steps that frosting service condition is exited in detection judgement:
Detect outdoor heat exchanger temperature TOutside, when meeting TOutside≤ T9 and duration meet t1 or compressor frosting operation duration
When meeting t2, frosting operation is exited, wherein t1 >=3min, t2 >=8min, -40 DEG C≤T9≤0 DEG C.
Further, the method for outdoor heat exchanger frosting is controlled in step (2) are as follows:
Four-way valve is commutated as the refrigerant flow direction of heating mode, unlatching compressor, closing outdoor fan.
Further, in step (2), the running frequency of compressor are as follows:
If T10 > Tout >=T1, compressor is with frequency F2 operation；
If T2 > Tout >=T10, compressor is run with F2+ (F1-F2)/(T2-T10) * Tout, wherein T1 < T10 < T2, F1
It is compressor minimum operating frequency, F2 is compressor maximum running frequency.
Further, before step (2), further include the steps that adjusting indoor fan revolving speed, the adjusting of indoor fan revolving speed
Method are as follows:
Detect indoor heat exchange temperature TIt is interiorIf TIt is interior< T5 closes indoor fan；
If T6 > TIt is interior>=T5, indoor fan are run according to the first notch speed；
If T7 > TIt is interior>=T6, indoor fan are run according to the second notch speed；
If T8 > TIt is interior>=T7, indoor motor are run according to third notch speed；
If TIt is interior>=T8, indoor fan are run according to fourth speed speed；
Wherein, 0 < T5 < T6 < T7 < T8, the first notch speed, the second notch speed, third notch speed and fourth speed speed corresponding to wind speed
It successively increases.
Further, further include the steps that T1 to the temperature range between T2 being further divided into three warm areas, from height
The first warm area, the second warm area, third warm area are followed successively by low, in the defrosting step of step (3), judge current outdoor environment temperature
Locating warm area stops compressor and outdoor fan operation, by outdoor ring if current outdoor environment temperature is located at the first warm area
Border temperature nature defrosting；
If current outdoor environment temperature is located at the second warm area, stop compressor, control outdoor fan is run according to highest gear
Carry out defrosting；
If current outdoor environment temperature is located at third warm area, the defrosting mode of activation system carries out defrosting.
A kind of air conditioner, including convertible frequency air-conditioner outdoor heat exchanger automatically cleaning control method documented by any bar of front.
Compared with prior art, the advantages and positive effects of the present invention are: convertible frequency air-conditioner outdoor heat exchanger of the invention from
Cleaning control method enables to outdoor heat exchanger quickly to tie a large amount of low-density frost in a short time, then quickly will be white
Melt, walks to be attached to the dust on outdoor heat exchanger to wash away.Into according to the self-cleaning Rule of judgment of outdoor heat exchanger
Outdoor environment temperature situation can either guarantee that quick frosting (outdoor environment temperature cannot be excessively high) may be implemented in outdoor temperature, again
It can guarantee quick defrost (outdoor environment temperature cannot be too low), reach effective clean effect.
After the detailed description of embodiment of the present invention is read in conjunction with the figure, the other features and advantages of the invention will become more
Add clear.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of embodiment process of convertible frequency air-conditioner outdoor heat exchanger automatically cleaning control method proposed by the invention
Figure；
Fig. 2 is that frosting is run in a kind of embodiment of convertible frequency air-conditioner outdoor heat exchanger automatically cleaning control method proposed by the invention
The running frequency curve graph of compressor in step；
Fig. 3 is that frosting is run in a kind of embodiment of convertible frequency air-conditioner outdoor heat exchanger automatically cleaning control method proposed by the invention
Indoor fan rotational speed regulation curve graph before step.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one
It is influenced since indoor air quality is not present in the cleannes of outdoor heat exchanger, the cleaning of outdoor heat exchanger is often held
It is easily ignored, since outdoor heat exchanger is air conditioner refrigerating, an important heat exchange device in heating system, heat exchange property is straight
The refrigeration for influencing air-conditioning, heating capacity are connect, and outdoor environment locating for outdoor heat exchanger is more severe, is more easier accumulation ash
Dirt is easy to influence the heat exchange property of outdoor heat exchanger over time, therefore, it is quite necessary to propose a kind of outdoor heat exchanger from
Clean method, to realize the automated cleaning of outdoor heat exchanger.Since outdoor heat exchanger is different from the function of indoor heat exchanger, and work
Condition is also different, and the automatically cleaning control method of indoor heat exchanger can not be suitable for the automatically cleaning of outdoor heat exchanger, and outdoor heat exchanger
Cleaning influenced by outdoor environment temperature very big, need to propose a kind of cleaning control method specifically for outdoor heat exchanger,
Based on this, the present embodiment proposes a kind of convertible frequency air-conditioner outdoor heat exchanger automatically cleaning control method, as shown in Figure 1, including following
Step:
S1, detection current outdoor environment temperature Tout, and judge whether current outdoor environment temperature meets into outdoor heat exchanger
Otherwise automatically cleaning control condition, does not execute the control of outdoor heat exchanger automatically cleaning if so, thening follow the steps S2；
Due to the self-cleaning process of outdoor heat exchanger according to its refrigerant flow to and heating operations refrigerant flow to it is identical, in order to short
Make to tie full frost on outdoor heat exchanger in time or thick frost, outdoor motor shut down.But there are many big on variable frequency air-conditioner controller
Power heating device, such as IPM module, PFC, IGBT module, in automatically cleaning Frost formation process, if long-time outdoor motor stops
Operating especially when the outdoor ambient temperature is relatively high leans on natural air convection current, will be unable to take away what high-power heating device generated
Heat causes device temperaturing lifting abnormality to increase, or even is burned out, if reducing high-power heater by reducing compressor operating frequency
Part generates heat, higher outdoor environment temperature, almost impossible frosting on heat exchanger, therefore practical just without cleaning effect；Another party
Face when outdoor is low temperature easy frosting temperature range, will tie full frost on outdoor heat exchanger of air conditioner itself, controller can be according to frosting
Situation periodicity defrost can take away the dust on outdoor heat exchanger, therefore under the conditions of lower outdoor environment temperature, no individually cleaning
Necessity of outdoor heat exchanger.To solve the above-mentioned problems, this programme is by limiting the corresponding outdoor temperature of outdoor self-cleaning function
Determine in a certain range, that is, to achieve the purpose that clean outdoor heat exchanger, in turn ensure the reliability of air-conditioning.
The control logic of this method belongs to a part of air-conditioner control system, for air-conditioning as automatically cleaning control method
For the entire control logic of system, air-conditioning needs to receive trigger signal and is just touched before entering automatically cleaning control logic
From cleaning logic, which be can be by setting the automatically cleaning period, and clocked flip is also possible to be passed through by user distant
Control device or Air-Conditioning Control Panel are triggered with order reception apparatus such as the mobile terminals of network air-conditioner binding.Air-conditioning connects
After receiving outdoor heat exchanger cleaning control instruction, indoor controller first determines whether outdoor environment temperature, it is determined whether enters specific
Outdoor heat exchanger automatically cleaning control.
S2, control outdoor heat exchanger frosting；
S3, the frosting of outdoor heat exchanger institute is melted, completes automatically cleaning control.
The convertible frequency air-conditioner outdoor heat exchanger automatically cleaning control method of the present embodiment, makes outdoor heat exchanger quick in a short time
A large amount of low-density frost is tied, then quickly frost is melted, walks to be attached to the dust on outdoor heat exchanger to wash away.Into room
The self-cleaning Rule of judgment of external heat exchanger is that can either guarantee that outdoor temperature may be implemented quickly according to outdoor environment temperature situation
Frosting (outdoor environment temperature cannot be excessively high), and can guarantee quick defrost (outdoor environment temperature cannot be too low), reach effective
Clean effect.
Wherein, in step S1, judge whether current outdoor environment temperature meets into outdoor heat exchanger automatically cleaning control strip
Part are as follows:
If T1≤Tout≤T2, enters outdoor heat exchanger automatically cleaning and control, otherwise, do not enter, wherein -5 DEG C≤T1≤10
DEG C, 24 DEG C≤T2≤45 DEG C.What specific value can be able to bear according to practical air conditioning performance and high-power heating device
The setting of temperature rise situation.It can either guarantee that quick frosting may be implemented in outdoor temperature, and can guarantee quick defrost.
Before step S2, further include the steps that judging air-conditioning present mode of operation, after completing automatically cleaning control, return
Return the air conditioning operating mode before automatically cleaning control.Air conditioning operating mode include refrigeration mode (containing dehumidification mode), heating mode,
Air supply pattern (contains standby mode, be defined as a kind of special pattern for standby herein).That is, the convertible frequency air-conditioner of the present embodiment
Operational mode of the outdoor heat exchanger automatically cleaning control method not where by current air-conditioning is limited, and can be above-mentioned operational mode
In any mode can be switched into as long as outdoor environment temperature meets the condition into outdoor heat exchanger automatically cleaning mode
Enter automatically cleaning mode, namely executes step S1.After completing automatically cleaning control, the operation of air conditioner before automatically cleaning control is returned
Mode, and then user is not influenced to the normal use demand of air-conditioning.
If being unsatisfactory for entering outdoor heat exchanger automatically cleaning control condition in step S1, and prompt informing is carried out to user, reached
To effective purpose for informing user, prompting mode, which can be, to be prompted perhaps voice prompting by buzzer warning or passes through
The display module of air-conditioning, the display screen of mobile terminal carry out subtitle prompt.
Step S2 is opposite with two courses of work of step S3, it is therefore desirable to after the completion of the frosting step in step S2, then into
The defrosting step for entering step S3 between step S2 and step S3, further includes the steps that frosting service condition is exited in detection judgement:
Detect outdoor heat exchanger temperature TOutside, when meeting TOutside≤ T9 and duration meet t1 or compressor frosting operation duration
When meeting t2, frosting operation is exited, wherein t1 >=3min, t2 >=8min, -40 DEG C≤T9≤0 DEG C.If outdoor heat exchanger is in
After one lower temperature and certain time, surface can forge certain thickness frost or compressor frosting operation
When meeting certain time length, the effect of frosting equally can achieve.
Outdoor heat exchanger automatically cleaning process in the present embodiment is really the refrigerant circulation process of heating mode, it is therefore desirable to
It is refrigeration mode, dehumidification mode or air-supply mould that the refrigerant of four-way valve, which is commutated as the flow direction namely present mode of heating mode,
When formula, need to control four-way valve commutation, it, only need to be by outdoor wind it is not necessary that four-way valve commutates when being currently inherently heating mode
Organ closes, in order to enable the quick frosting in outdoor heat exchanger surface, needs to close outdoor fan, starts according to setpoint frequency and presses
The operation of contracting machine.
The running frequency needs of compressor are associated with outdoor environment temperature, this association is safely with high-power heating device
Premise, and can guarantee the normal frosting of outdoor heat exchanger, as a preferred embodiment, in step S2, as shown in Fig. 2, pressure
The running frequency of contracting machine are as follows:
If T10 > Tout >=T1, compressor is with frequency F2 operation；
If T2 > Tout >=T10, compressor is run with F2+ (F1-F2)/(T2-T10) * Tout, wherein T1 < T10 < T2；
F1 is the compressor minimum operating frequency that can satisfy outdoor heat exchanger frosting, and F2 is to guarantee high-power heating device reliability
Under conditions of compressor maximum running frequency, the value range of F1 is 10 Hz~90Hz, the value range of F2 be 40 Hz~
120Hz.As shown in Figure 2, when outdoor environment temperature is lower, compressor be may operate under a higher frequency, summer system
When hot, system pressure will increase, environment temperature is higher, and the heat that system generates is higher, and the running frequency of compressor reduces, and reduces
The fever of high power device, premised on safety.Therefore, after being more than temperature T10, with the increase of outdoor environment temperature, pressure
The running frequency of contracting machine accordingly reduces, to guarantee system safety.
In order to reduce the influence caused by room temperature of outdoor heat exchanger automatically cleaning mode, for summer, room
Interior heat exchanger, which carries out heat dissipation, so that room temperature is promoted, and comfort is caused to reduce, simultaneously as indoor heat exchanger radiates,
The heat for needing to be generated in time distributes in order to avoid damaging to indoor heat exchanger, further includes adjusting before step S2
The step of indoor fan revolving speed, can either guarantee indoor heat exchanger its object is to which indoor fan is adjusted to suitable temperature
Safety, and not too large wind speed avoids causing larger fluctuation to room temperature, as shown in figure 3, the adjusting of indoor fan revolving speed
Method are as follows:
Detect indoor heat exchange temperature TIt is interiorIf TIt is interior< T5 closes indoor fan；
If T6 > TIt is interior>=T5, indoor fan are run according to the first notch speed；
If T7 > TIt is interior>=T6, indoor fan are run according to the second notch speed；
If T8 > TIt is interior>=T7, indoor motor are run according to third notch speed；
If TIt is interior>=T8, indoor fan are run according to fourth speed speed；
Wherein, 0 < T5 < T6 < T7 < T8, the first notch speed, the second notch speed, third notch speed and fourth speed speed corresponding to wind speed
It successively increases.Indoor fan is divided into multiple sections, different temperature ranges according to indoor heat exchanger temperature, and indoor motor corresponds to
For stop and different air quantity revolving speeds, at stepped change.For the air-conditioning of different brands, different model, indoor fan
Notch speed setting may be not quite similar, and total notch speed quantity is not less than 4 notch speeds under normal circumstances, when being more than 4 notch speeds, first
Notch speed, the second notch speed, third notch speed and fourth speed speed can from all notch speed quantity optional wherein 4 notch speeds, need to only expire
The rule that wind speed corresponding to the first notch speed of foot, the second notch speed, third notch speed and fourth speed speed successively increases, when total shelves
, can be by way of temporarily increasing one or more notch speed when fast quantity is lower than 4 notch speeds, certain increased notch speed of institute is only
The air-blower control being limited under automatically cleaning mode.
The sense of discomfort caused by human body when in order to further decrease outdoor heat exchanger automatically cleaning mode further includes adjusting wind-guiding
Wind deflector is adjusted to being not easy to blow to the position of human body, if blown or blowing downwards upwards, will be made to human body by the step of plate angle is spent
At discomfort be preferably minimized.
In order to quick defrost simultaneously achieve the purpose that energy saving, further include by T1 to the temperature range between T2 into
One step is divided into the step of three warm areas, is followed successively by the first warm area, the second warm area, third warm area from high to low, step S3's melts
In white step, warm area locating for current outdoor environment temperature is judged, if current outdoor environment temperature is located at the first warm area, explanation is worked as
Preceding outdoor environment temperature is higher, then stops compressor and outdoor fan operation, can by the exchange of outdoor environment temperature heat
With direct defrosting defrost, the dust on outdoor heat exchanger is taken away, namely using by outdoor environment temperature nature defrosting, is made full use of
Natural high-temperature, achievees the purpose that energy saving；In order to reduce decision logic, judge that air-conditioning currently runs mould before step S2
When formula is refrigeration mode, default outdoor environment temperature is in high-temperature region.In this step logic, if current outdoor environment temperature is located at the
One warm area can directly return to the control model before outdoor heat exchanger automatically cleaning, no longer independent defrosting, to reduce because of automatically cleaning band
The period of reservation of number come.
If current outdoor environment temperature is located at the second warm area, illustrate that current outdoor environment temperature is not sufficiently high to naturalization
Frost, but be also unlikely to too low, then stop compressor, control outdoor fan runs according to highest gear and carries out defrosting, that is, control
The mode of outdoor fan blowing processed carries out defrost；
If current outdoor environment temperature is located at third warm area, illustrate that current outdoor temperature is lower, then the defrosting mould of activation system
Formula carries out defrosting.Under normal circumstances air-conditioning system in order to prevent winter use when outdoor heat exchanger frosting, be typically provided with defrosting
Mode carries out defrost by using defrosting mode, takes away the dust on outdoor heat exchanger.
Defrosting mode controls refrigerant flow direction commutation, carries out adverse current defrosting, while indoor fan, outdoor fan stop, pressure
Contracting machine is with the frequency operation that defrosts, wherein defrosting frequency is systemic presupposition.
Embodiment two
The present embodiment proposes a kind of air conditioner, which is documented frequency conversion in transducer air conditioning, including embodiment one
Outdoor heat exchanger of air conditioner automatically cleaning control method specifically may refer to not do herein superfluous recorded in embodiment one and attached drawing 1-3
It states.
Certainly, the above description is not a limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the those of ordinary skill in domain is made within the essential scope of the present invention, also should belong to this hair
Bright protection scope.
Claims (10)
1. a kind of convertible frequency air-conditioner outdoor heat exchanger automatically cleaning control method, which comprises the following steps:
(1), current outdoor environment temperature Tout is detected, and judges whether current outdoor environment temperature meets into outdoor heat exchanger
Automatically cleaning control condition otherwise, does not execute the control of outdoor heat exchanger automatically cleaning if so, thening follow the steps (2)；
(2), outdoor heat exchanger frosting is controlled；
(3), the frosting of outdoor heat exchanger institute is melted, completes automatically cleaning control.
2. control method according to claim 1, which is characterized in that further include judging that air-conditioning is current before step (2)
The step of operational mode, returns to the air conditioning operating mode before automatically cleaning control after completing automatically cleaning control.
3. control method according to claim 1, which is characterized in that in step (1), judge that current outdoor environment temperature is
It is no to meet into outdoor heat exchanger automatically cleaning control condition are as follows:
If T1≤Tout≤T2, enters outdoor heat exchanger automatically cleaning and control, otherwise, do not enter, wherein -5 DEG C≤T1≤10
DEG C, 24 DEG C≤T2≤45 DEG C.
4. control method according to claim 3, which is characterized in that step (1) if in be unsatisfactory for enter outdoor heat exchanger
Automatically cleaning control condition, and prompt informing is carried out to user.
5. control method according to claim 1, which is characterized in that further include detection between step (2) and step (3)
The step of frosting service condition is exited in judgement:
Detect outdoor heat exchanger temperature TOutside, when meeting TOutside≤ T9 and duration meet t1 or compressor frosting operation duration
When meeting t2, frosting operation is exited, wherein t1 >=3min, t2 >=8min, -40 DEG C≤T9≤0 DEG C.
6. control method according to claim 1-5, which is characterized in that control outdoor heat exchanger in step (2)
The method of frosting are as follows:
Four-way valve is commutated as the refrigerant flow direction of heating mode, unlatching compressor, closing outdoor fan.
7. control method according to claim 6, which is characterized in that in step (2), the running frequency of compressor are as follows:
If T10 > Tout >=T1, compressor is with frequency F2 operation；
If T2 > Tout >=T10, compressor is run with F2+ (F1-F2)/(T2-T10) * Tout；
Wherein, T1 < T10 < T2；F1 is compressor minimum operating frequency, and F2 is compressor maximum running frequency.
8. control method according to claim 1-5, which is characterized in that further include regulation room before step (2)
The step of inner blower revolving speed, the adjusting method of indoor fan revolving speed are as follows:
Detect indoor heat exchange temperature TIt is interiorIf TIt is interior< T5 closes indoor fan；
If T6 > TIt is interior>=T5, indoor fan are run according to the first notch speed；
If T7 > TIt is interior>=T6, indoor fan are run according to the second notch speed；
If T8 > TIt is interior>=T7, indoor motor are run according to third notch speed；
If TIt is interior>=T8, indoor fan are run according to fourth speed speed；
Wherein, 0 < T5 < T6 < T7 < T8, the first notch speed, the second notch speed, third notch speed and fourth speed speed corresponding to wind speed
It successively increases.
9. control method according to claim 3, which is characterized in that further include by T1 to the temperature range between T2 into one
The step of step is divided into three warm areas, is followed successively by the first warm area, the second warm area, third warm area, the defrosting of step (3) from high to low
In step, warm area locating for current outdoor environment temperature is judged, if current outdoor environment temperature is located at the first warm area, stop pressing
Contracting machine and outdoor fan operation, by outdoor environment temperature nature defrosting；
If current outdoor environment temperature is located at the second warm area, stop compressor, control outdoor fan is run according to highest gear
Carry out defrosting；
If current outdoor environment temperature is located at third warm area, the defrosting mode of activation system carries out defrosting.
10. a kind of air conditioner, it is characterised in that: certainly including the described in any item convertible frequency air-conditioner outdoor heat exchangers of claim 1-9
Cleaning control method.
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| CN109869875A (en) * | 2019-01-31 | 2019-06-11 | 广东美的制冷设备有限公司 | Airhandling equipment and its clean method, device, computer readable storage medium |
| CN110094833A (en) * | 2019-05-16 | 2019-08-06 | 滁州星联电子有限公司 | A kind of booting Defrost method of convertible frequency air-conditioner |
| CN110398038A (en) * | 2019-07-29 | 2019-11-01 | 宁波奥克斯电气股份有限公司 | A kind of outdoor machine of air-conditioner self-cleaning control method, device and air-conditioning system |
| CN110500803A (en) * | 2019-07-30 | 2019-11-26 | 龙川纽恩泰新能源科技发展有限公司 | A kind of air source heat pump and its automatically cleaning control system |
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| CN111442472A (en) * | 2020-04-10 | 2020-07-24 | 青岛海尔空调器有限总公司 | Air conditioner filter screen cleaning prompting method and air conditioner |
| CN112161378A (en) * | 2020-09-07 | 2021-01-01 | 珠海格力电器股份有限公司 | Outdoor unit defrosting control method and device and air conditioner |
| CN112283863A (en) * | 2020-09-21 | 2021-01-29 | 珠海格力电器股份有限公司 | Self-cleaning control method and device for air conditioner external unit, storage medium and air conditioner |
| CN112254219A (en) * | 2020-10-12 | 2021-01-22 | 海信（山东）空调有限公司 | Self-cleaning control method for indoor unit of air conditioner |
| CN112254275A (en) * | 2020-10-12 | 2021-01-22 | 海信（山东）空调有限公司 | Self-cleaning control method for outdoor unit of air conditioner |
| WO2022166165A1 (en) * | 2021-02-07 | 2022-08-11 | 青岛海尔空调器有限总公司 | Air conditionder self-cleaning control method and device, and air conditioner |
| CN114110951A (en) * | 2021-11-29 | 2022-03-01 | 海信（山东）空调有限公司 | Self-cleaning control method for outdoor heat exchanger, air conditioner and computer storage medium |
| CN114216214A (en) * | 2021-12-22 | 2022-03-22 | 宁波奥克斯电气股份有限公司 | Self-cleaning control method and device and air conditioner |
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Address after: 266101 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Applicant after: Hisense (Shandong) Air-conditioning Co., Ltd. Address before: 266736 Qingdao, Pingdu City, South Village, North Station, Hisense Road, No. 1, No. Applicant before: Hisense (Shandong) Air-conditioning Co., Ltd. |
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Application publication date: 20190101 |