CN107421061A - The condensation prevention control method and device of air conditioner - Google Patents

The condensation prevention control method and device of air conditioner Download PDF

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Publication number
CN107421061A
CN107421061A CN201710547412.0A CN201710547412A CN107421061A CN 107421061 A CN107421061 A CN 107421061A CN 201710547412 A CN201710547412 A CN 201710547412A CN 107421061 A CN107421061 A CN 107421061A
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China
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temperature
indoor environment
air conditioner
condensation
indoor
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CN107421061B (en
Inventor
杨晓
刘丙磊
孙龙
李鑫
李宗攀
徐贝贝
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Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Smart Home Co Ltd
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Qingdao Haier Air Conditioner Gen Corp Ltd
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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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F2013/221—Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention provides a kind of condensation prevention control method of air conditioner and device, control method therein is included in after detection air conditioner be in refrigeration mode, indoor environment temperature, the heat exchanger coils temperature of indoor environment relative humidity and indoor set residing for detection air conditioner room unit；According to the indoor environment dew-point temperature residing for indoor environment temperature and indoor environment relative humidity calculation indoor set；And if indoor environment temperature is more than or equal to indoor environment temperature predetermined threshold value, and indoor environment relative humidity is more than or equal to indoor environment relative humidity predetermined threshold value, and the heat exchanger coils temperature of indoor set determines to open the first anti-condensation pattern of air conditioner or opens the second anti-condensation pattern when being less than indoor environment dew-point temperature according to the comparative result of the difference of the heat exchanger coils temperature of indoor set and indoor environment dew-point temperature and preset temperature difference.It improves the accuracy of the anti-condensation control of air conditioner and prevents air conditioner from producing condensation.

Description

The condensation prevention control method and device of air conditioner
Technical field
The present invention relates to family's electro-technical field, more particularly to the condensation prevention control method and device of air conditioner.
Background technology
Air conditioner during running in a chiller mode, if air conditioner is under hot and humid environment, in air Vapor is easily condensed on the air outlet of indoor set or wind deflector of air conditioner, the globule is produced, so as to cause the globule by air outlet Drip or blow out, destroy the indoor environment of user, influence the usage experience of user.
Existing method is usually that flannelette is pasted on wind deflector or electric heating sheets are sticked on air outlet, is pasted on wind deflector The scheme of flannelette can alleviate dew condensation phenomenon to a certain extent, but after long-time use, flannelette surface can be stained with a large amount of dusts, Influence the overall appearance effect of air conditioner.Can solve condensation problem to a certain extent using electrically heated scheme, but go out wind-warm syndrome Spend it is relatively low in the case of, need to increase electrical heating power, increase energy consumption and there is certain potential safety hazard.
The content of the invention
In view of the above problems, it is an object of the present invention to provide one kind to overcome above mentioned problem or solve at least in part The certainly condensation prevention control method of the air conditioner of above mentioned problem.
The present invention one is further objective is that lifting the accuracy of the anti-condensation control of air conditioner and preventing air conditioner from producing Raw condensation.
According to the one side of invention, the invention provides a kind of condensation prevention control method of air conditioner, it includes：
After detection air conditioner is in refrigeration mode, indoor environment temperature, indoor ring residing for air conditioner room unit are detected The heat exchanger coils temperature of border relative humidity and indoor set；
According to the indoor environment dew-point temperature residing for indoor environment temperature and indoor environment relative humidity calculation indoor set；With And
If indoor environment temperature is more than or equal to indoor environment temperature predetermined threshold value, and indoor environment relative humidity be more than or Heat exchanger coils temperature equal to indoor environment relative humidity predetermined threshold value, and indoor set is less than indoor environment dew-point temperature When, the anti-condensation pattern of air conditioner is opened, anti-condensation pattern is the first anti-condensation pattern or the second anti-condensation pattern；
Also, heat exchanger disk of the unlatching of the first anti-condensation pattern with the unlatching of the second anti-condensation pattern all in accordance with indoor set Pipe temperature determines with the difference of indoor environment dew-point temperature and the comparative result of preset temperature difference.
Alternatively, indoor environment dew-point temperature TdCalculation formula be：
Wherein, T is indoor environment temperature, and f is indoor environment relative humidity, unit %, a=7.5, b=237.3.
Alternatively, if the difference of the heat exchanger coils temperature of indoor set and indoor environment dew-point temperature is poor more than preset temperature Value, open the first anti-condensation pattern.
Alternatively, the first anti-condensation pattern includes：
The position of the wind deflector of the air outlet of air conditioner room unit is detected, if wind deflector is not in the position of maximum air output Put, then adjust the position that wind deflector is in maximum air output；And
The frequency of the compressor of air conditioner is adjusted to after reducing the first calculating frequency on the basis of compressor current frequency Frequency.
Alternatively, if the difference of the heat exchanger coils temperature of indoor set and indoor environment dew-point temperature is less than or equal to and preset During temperature gap, the second anti-condensation pattern is opened.
Alternatively, the second anti-condensation pattern includes：
The position of the wind deflector of the air outlet of air conditioner room unit is detected, if wind deflector is not in the position of maximum air output Put, then adjust the position that wind deflector is in maximum air output；
The frequency of the compressor of air conditioner is adjusted to after reducing the first calculating frequency on the basis of compressor current frequency Frequency；And
Increase by first calculates rotating speed on the basis of adjusting rotating speed to the current rotating speed of machine blower fan indoors of indoor set blower fan.
Alternatively, the first calculating frequency Δ F calculation formula is：Δ F=a × T+b × (Td-Tg)+c；
Wherein a=0.01~0.05, b=0.1~0.4, c=0.4~0.8, T are indoor environment temperature, TdFor indoor ring Border dew-point temperature, TgFor the heat exchanger coils temperature of indoor set.
Alternatively, the first calculating rotating speed Δ N calculation formula is：Δ N=int (m × (Td-Tg)+n)；
Wherein int is round numbers function, m=3.5~5.0, n=10~40, TdFor indoor environment dew-point temperature, TgFor room The heat exchanger coils temperature of interior machine.
Alternatively, control method also includes：
When meeting following either conditions, terminate the anti-condensation pattern of air conditioner, and it is anti-condensation pattern to adjust air conditioner Initial pattern before；
Condition includes：
Indoor environment temperature is less than indoor environment temperature predetermined threshold value；
Indoor environment relative humidity is less than indoor environment relative humidity predetermined threshold value；
The heat exchanger coils temperature of indoor set is more than or equal to indoor environment dew-point temperature.
According to a further aspect of the present invention, a kind of anti-condensation control device of air conditioner is additionally provided, it includes controller And memory, memory internal memory contain computer program, and when computer program is run so that controller performs above-mentioned The control method of one.
The condensation prevention control method of the air conditioner of the present invention, according to indoor environment temperature and indoor environment relative humidity calculation Indoor environment dew-point temperature, and the specified conditions for opening anti-condensation pattern are set, further according to the heat exchanger coils of indoor set Temperature judges to open the first anti-condensation pattern also with the difference of indoor environment dew-point temperature and the comparative result of preset temperature difference It is the second anti-condensation pattern of opening, is that the unlatching of anti-condensation pattern sets specific condition, enters so as to accurate judgement anti-condensation The opportunity of pattern, and targetedly anti-condensation control is carried out according to the order of severity of dew condensation phenomenon, and then improve anti-condensation control The flexibility of system and accuracy, prevent air conditioner from producing condensation.
Further, in the condensation prevention control method of air conditioner of the invention, in the calculation formula of ambient dew point temperature Indoor environment relative humidity this variable is introduced, is used as using indoor environment relative humidity and indoor environment temperature and calculates dew point temperature The variable of degree, a kind of computational methods of new dew-point temperature are designed, the dew-point temperature obtained by the computational methods is more accurate, more Be close to actual indoor environment dew-point temperature, so as to provided for the follow-up opportunity into anti-condensation pattern accurately judge according to According to.
Further, in the condensation prevention control method of air conditioner of the invention, when opening the first anti-condensation pattern, adjust The position of whole wind deflector and the frequency of compressor, and the adjustment numerical value of compressor frequency is determined with specially designed calculation formula, The dew condensation phenomenon of air conditioner can obtain effective control.When opening the second anti-condensation pattern, position and the compression of wind deflector are adjusted The frequency of machine, while the rotating speed of indoor set blower fan is adjusted, the adjustment of compressor frequency and the adjustment of the rotating speed of indoor set blower fan are equal Accurate regulated value is provided in specially designed method, so as to effectively control the dew condensation phenomenon of air conditioner, reaches anti-condensation Accurate control.
According to the accompanying drawings will be brighter to the detailed description of the specific embodiment of the invention, those skilled in the art Above-mentioned and other purposes, the advantages and features of the present invention.
Brief description of the drawings
Some specific embodiments of the present invention are described in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter. Identical reference denotes same or similar part or part in accompanying drawing.It should be appreciated by those skilled in the art that these What accompanying drawing was not necessarily drawn to scale.In accompanying drawing：
Fig. 1 is the flow chart of the condensation prevention control method of air conditioner according to an embodiment of the invention；
Fig. 2 is a kind of optional flow chart of the condensation prevention control method of air conditioner according to an embodiment of the invention；With And
Fig. 3 is the schematic diagram of the anti-condensation control device of air conditioner according to an embodiment of the invention.
Embodiment
The present embodiment provide firstly a kind of condensation prevention control method of air conditioner, and Fig. 1 is according to one implementation of the present invention The flow chart of the condensation prevention control method of the air conditioner of example.
Referring to Fig. 1, the condensation prevention control method of air conditioner, including：
S102, after detection air conditioner is in refrigeration mode, indoor environment temperature, room residing for detection air conditioner room unit The heat exchanger coils temperature of interior envionmental humidity and indoor set；
After user opens air conditioner, air conditioner detects the mode of operation of air conditioner, the mode of operation one of air conditioner in real time As include refrigeration mode, heating mode, dehumidification mode, ventilatory pattern etc., when air conditioner is in heating mode or ventilatory pattern, Air conditioner is not in dew condensation phenomenon；When air conditioner is in refrigeration mode or dehumidification mode, if air conditioner is in compared with high humidity Easily there is dew condensation phenomenon in the interior space of degree, air conditioner.Refrigeration mode in the present invention includes the refrigeration mould on conventional meaning Formula and dehumidification mode.When air conditioner is in refrigeration mode, show that air conditioner occurs the risk of dew condensation phenomenon.Obtain air conditioner The heat exchanger coils temperature of indoor environment temperature, indoor environment relative humidity and indoor set residing for indoor set is to judge condensation Produce and reference frame is provided.
Humidity, represent the physical quantity of air drying degree.The water contained at a certain temperature in the air of certain volume Vapour is fewer, then air is drier；Steam is more, then air is moister.
Relative humidity, represent air in absolute humidity with it is synthermal under saturated humidity ratio ratio, ratio one Individual percentage.Namely refer to the steam-laden quality of institute and the steam-laden matter of institute in synthermal lower saturated air in certain humid air The ratio between amount, this ratio is represented with percentage.
Heat exchanger coils temperature refers to the temperature of the tube wall of the heat exchanger coils of the indoor set of air conditioner, specifically, heat exchange The temperature sensor of detection heat exchanger coils temperature can be set on device coil pipe.
S104, according to the indoor environment dew point temperature residing for indoor environment temperature and indoor environment relative humidity calculation indoor set Degree；
It is always one of technical barrier in air conditioner product development process to solve air conditioner condensation problem, caused by condensation Basic reason is that the evaporating temperature of the heat exchanger of air conditioner room unit is less than air dew point temperature Td, causes the vapor in air When by the heat exchanger of indoor set, separate out turns into condensed water or dewdrop to the cold.
The calculating of air dew point temperature is typically a kind of extensive approximate estimation in the prior art, and in calculation formula only This variable of temperature, so calculate the air dew point temperature obtained and actual air dew-point temperature difference is larger, can not be air-conditioning The anti-condensation control of device provides accurate reference frame.
The present embodiment is using indoor environment temperature and indoor environment relative humidity as the indoor ring residing for variable calculating indoor set Border dew-point temperature, indoor environment dew-point temperature TdCalculation formula be：
Wherein, T is indoor environment temperature, and f is indoor environment relative humidity, unit %, when indoor environment temperature T is more than When zero (water surface), the value of two coefficients of a, b can be a=7.5, b=237.3, when the indoor environment temperature is less than or equal to When zero (ice face), the value of two coefficients of a, b can be a=9.5, b=265.5.Because air conditioner dew condensation phenomenon occurs in air-conditioning Under device refrigeration mode, in the case that indoor environment temperature is higher, therefore indoor environment dew-point temperature T is calculated in the present inventiondIt is upper State in formula, the value of two coefficients of a, b can be a=7.5, b=237.3.
Above-mentioned indoor environment dew-point temperature TdCalculation formula more conform to actual and accurate computational methods for one kind, by The indoor environment dew-point temperature T that the formula obtainsdIt is more consistent with actual conditions, so as to opening for the anti-condensation control of air conditioner It is dynamic that accurate reference conditions are provided, lift the accuracy of anti-condensation control.
S106, if indoor environment temperature is more than or equal to indoor environment temperature predetermined threshold value, and indoor environment relative humidity Heat exchanger coils temperature more than or equal to indoor environment relative humidity predetermined threshold value, and indoor set is less than indoor environment dew point During temperature, the anti-condensation pattern of air conditioner is opened, anti-condensation pattern is the first anti-condensation pattern or the second anti-condensation pattern；
Also, heat exchanger disk of the unlatching of the first anti-condensation pattern with the unlatching of the second anti-condensation pattern all in accordance with indoor set Pipe temperature determines with the difference of indoor environment dew-point temperature and the comparative result of preset temperature difference.
The evaporating temperature of the heat exchanger of air conditioner room unit can use the heat exchanger coils temperature T of air conditioner room unitgEnter Row approximate substitution, so can be by comparing the heat exchanger coils temperature T of indoor setgWith indoor air dew point temperature T in real timed Size, consider anti-condensation measure from control angle.
By the indoor environment temperature T detected and indoor environment temperature predetermined threshold value TlimitIt is compared, and by indoor ring Border relative humidity f and indoor environment relative humidity predetermined threshold value flimitIt is compared, if indoor environment temperature T is more than or equal to Indoor environment temperature predetermined threshold value Tlimit, indoor environment relative humidity f is more than or equal to indoor environment relative humidity predetermined threshold value flimit, such as TlimitCan be 26 DEG C, flimitFor 70%, as T >=TlimitAnd f >=flimitWhen, illustrate that now indoor environment has The risk of existing condensation.Further by the heat exchanger coils temperature T of indoor setgWith indoor environment dew-point temperature TdIt is compared, if Tg<Td, then the heat exchanger coils temperature T of air conditioner room unitgLess than air dew point temperature Td, now vapor in air meet Cold analysis goes out as condensed water or dewdrop, and therefore, in the case where meeting above-mentioned condition, air conditioner should open anti-condensation pattern, prevent or subtract The generation of weak condensation.
Also, be accurate control condensation, anti-condensation pattern can be the first anti-condensation pattern or the second anti-condensation pattern, than Compared with the heat exchanger coils temperature T of indoor setgWith indoor environment dew-point temperature TdWhen, should be according to the heat exchanger coils temperature of indoor set TgWith indoor environment dew-point temperature TdDifference and preset temperature difference DELTA TlimitComparative result determine to open the of air conditioner One anti-condensation pattern still opens the second anti-condensation pattern of air conditioner, to be closed according to the order of severity of air conditioner condensation Manage, be flexible, accurately controlling condensation.Wherein preset temperature difference DELTA TlimitFor minus numerical value.
Specifically, if the heat exchanger coils temperature T of indoor setgSlightly below indoor environment dew-point temperature Td, it that is to say, it is indoor The heat exchanger coils temperature T of machinegWith indoor environment dew-point temperature TdDifference be more than preset temperature difference DELTA Tlimit, i.e. Δ Tlimit ＜ Tg-Td＜ 0, wherein preset temperature difference DELTA TlimitIt can be -5 DEG C, the dew condensation phenomenon for now illustrating air conditioner is not very tight Weight, accordingly open the first anti-condensation pattern of air conditioner.
If the heat exchanger coils temperature T of indoor setgSeriously it is less than indoor environment dew-point temperature Td, that is to say, indoor set changes Hot device coil temperature TgWith indoor environment dew-point temperature TdDifference be less than or equal to preset temperature difference DELTA Tlimit, i.e. Tg-Td≤ ΔTlimit, wherein preset temperature difference DELTA TlimitIt can be -5 DEG C, now illustrate that the dew condensation phenomenon of air conditioner is more serious, accordingly Open the second anti-condensation pattern of air conditioner.
Specifically, when the first of air conditioner the anti-condensation pattern is opened, the wind deflector of the air outlet of air conditioner room unit is detected Position, if wind deflector is not in the position of maximum air output, adjustment wind deflector is in the position of maximum air output, indoor set After air output improves, the heat transfer effect increase of the heat exchanger and room air of indoor set, so as to reduce the heat exchanger disk of indoor set The temperature difference of pipe temperature and indoor temperature, it is this under the conditions of air conditioner be less prone to condensation, or if condensation has produced, this The further exacerbation of condensation can be reduced under the conditions of kind.At the same time, the running frequency of the compressor of air conditioner is reduced, so as to reduce The refrigerating capacity of air conditioner, the heat exchanger coils temperature of indoor set and the difference of indoor temperature are reduced, reduce further condensation production Raw risk so that condensation is controlled effectively.
The whole frequency-adjustable of compressor is in compressor current frequency F0On the basis of reduce first calculate frequency Δ F after Frequency, i.e. the frequency F=F of the compressor after adjustment0-ΔF.Wherein first calculating frequency Δ F calculation formula is：Δ F=a ×T+b×(Td-Tg)+c；T is indoor environment temperature, TdFor indoor environment dew-point temperature, TgFor the heat exchanger coils temperature of indoor set Degree.A, b, c are three coefficients, and a, b, c span can be a=0.01~0.05, b=0.1~0.4, c=0.4~0.8, Specifically, a, b, c value can be a=0.02, b=0.1, c=0.6.
The purpose of control condensation should be reached when adjusting compressor frequency, while needed before avoiding compressor frequency from adjusting Difference afterwards is excessive, causes the front and rear difference of indoor temperature excessive and influences the comfort of user.Therefore, the present embodiment is using upper The decreasing value that calculation formula obtains compressor frequency is stated, and controls what compressor frequency adjusted by reasonable set coefficient a, b, c Amplitude, adjustment is no more than 5HZ to compressor frequency every time, and optimum frequency adjusting range can be controlled in 0.5HZ-3HZ.In control condensation While, ensureing that compressor frequency reduces will not be too many, avoids human body from not feeling like oneself suddenly, to improve user experience and comfortable Degree.And on the premise of condensation is prevented, ensure refrigerating capacity, the frequency of the compressor of air conditioner is reduced, improves sky Adjust the environmental protection and energy saving of device.
When second anti-condensation pattern of air conditioner is opened, due to the heat exchanger coils temperature T of now indoor setgIt is serious Less than indoor environment dew-point temperature Td, it is necessary to the strength of adjustment of air conditioner is increased, the air-out of air conditioner room unit detectable first The position of the wind deflector of mouth, if wind deflector is not in the position of maximum air output, adjustment wind deflector is in maximum air output Position, so as to reduce the heat exchanger coils temperature of indoor set and the temperature difference of indoor temperature, prevent the generation of condensation.It is same with this When, the running frequency of the compressor of air conditioner is reduced, the frequency of compressor is adjusted in compressor current frequency F1Basis It is upper to reduce the first calculating frequency Δ F, so as to reduce the refrigerating capacity of air conditioner, reduce heat exchanger coils temperature and the interior of indoor set The difference of temperature.Go forward side by side the rotating speed of a successive step indoor set blower fan, by the adjustment of rotational speed of indoor set blower fan to machine blower fan indoors Increase by first calculates rotating speed on the basis of current rotating speed, improves the velocity of rotation of blower fan, goes out wind-warm syndrome at wind deflector so as to improve Degree, avoid the problem of condensation drips near air-conditioner air outlet.
Wherein, the frequency F=F of the compressor after adjustment0-ΔF.Wherein first calculating frequency Δ F calculation formula is：Δ F=a × T+b × (Td-Tg)+c；T is indoor environment temperature, TdFor indoor environment dew-point temperature, Tg is the heat exchanger disk of indoor set Pipe temperature.Δ F result of calculation can retain a decimal, and a, b, c are three coefficients, and a, b, c span can be a=0.01 ~0.05, b=0.1~0.4, c=0.4~0.8, specifically, a, b, c value are chosen as a=0.02, b=0.1, c=0.6.
The rotating speed N=N of indoor set blower fan after wherein adjusting0+ Δ N, wherein Δ N calculation formula are：Δ N=int (m ×(Td-Tg)+n)；Wherein int is round numbers function, TdFor indoor environment dew-point temperature, TgFor the heat exchanger coils temperature of indoor set Degree.M, n is two coefficients, and m, n span can be m=3.5~5.0, n=10~40, specifically, m, n optional m=of value 4.0, n=30.
, it is necessary to avoid rotation speed of fan adjustment amplitude excessive while indoor set rotation speed of fan is increased, cause the note of user Meaning, influence the usage experience of user.Therefore, the present embodiment obtains the incrementss of indoor set blower fan using above-mentioned calculation formula, and By reasonable set Coefficient m, n, by the control of rotation speed of fan adjustment amplitude within the specific limits, such as within 100rpm, slowly adjust Whole rotation speed of fan, while improving air outlet of indoor set leaving air temp, preventing that condensation from producing, rest that will not be to user produces Interference, lift the usage experience and comfort level of user.
In the case where air conditioner opens anti-condensation pattern, air conditioner can detect indoor environment temperature, interior after separated in time The heat exchanger coils temperature of envionmental humidity and indoor set, and according to indoor environment temperature and indoor environment relative humidity calculation Indoor environment dew-point temperature, and judge whether the air conditioner at current time meets the first anti-condensation pattern or the second anti-condensation mould Formula, if it is satisfied, then repeating the adjustment of the first anti-condensation pattern of air conditioner or repeating the second anti-condensation pattern of air conditioner Adjustment, air conditioner is adjusted to produce the state of condensation.
When air conditioner detects that indoor environment temperature T is less than indoor environment temperature predetermined threshold value Tlimit, such as TlimitCan be 26 DEG C, work as T<TlimitWhen, it is not very high, the heat exchanger coils of indoor environment temperature and indoor set now to illustrate indoor environment temperature The difference of temperature is also relatively small, in this case, produces the possibility very little of condensation, therefore, can now terminate air-conditioning The anti-condensation pattern of device, and the initial pattern before the state of air conditioner is adjusted into anti-condensation pattern, if for example, this space-time Adjust device to be in the first anti-condensation pattern, then prevent the position of deep bead for first by the position adjustment for being now in maximum air output Position before condensation pattern, the frequency of the compressor of air conditioner is adjusted to frequency drop by current relatively low frequency running status Original frequency before low.Similarly, if now air conditioner is in the second anti-condensation pattern, need baffle plate wind, air conditioner Compressor frequency and indoor set rotation speed of fan be adjusted to before state.
When indoor environment relative humidity f is less than indoor environment relative humidity predetermined threshold value flimit, for example, flimitFor 70%, Work as f<flimitWhen, it is not very big now to illustrate indoor environment relative humidity, and under this indoor environment, air conditioner is not likely to produce solidifying Dew, therefore now cocoa terminates the anti-condensation pattern of air conditioner, and the state of air conditioner is adjusted to before anti-condensation pattern State.
As the heat exchanger coils temperature T of indoor setgMore than or equal to indoor environment dew-point temperature TdIf, i.e. Tg≥TdWhen, Under the conditions of this, air conditioner will not also produce condensation, therefore can now terminate the anti-condensation pattern of air conditioner, and by air conditioner State is adjusted to the state before anti-condensation pattern.
The present embodiment exemplarily gives a kind of optional flow of the condensation prevention control method of air conditioner, specifically, ginseng It is a kind of optional flow chart of the condensation prevention control method of the air conditioner of one embodiment of the invention to see Fig. 2, Fig. 2, air conditioner Condensation prevention control method includes：
S202, start control program；
S204, detect indoor environment temperature T, indoor environment relative humidity f and indoor set residing for air conditioner room unit Heat exchanger coils temperature Tg；
S206, judges whether T is more than or equal to Tlimit, and judge whether f is more than or equal to flimit；
S208, if T >=TlimitAnd f >=flimit, judge the heat exchanger coils temperature T of indoor setgWith indoor environment dew point temperature Spend TdDifference and preset temperature difference DELTA TlimitComparative result；
S210, if Δ Tlimit<Tg-Td<0, then wind deflector adjust to the position of maximum air output, and the compression of air conditioner Unit frequency F is adjusted in compressor current frequency F0On the basis of reduce first and calculate the frequency after frequency Δ F；
S212, if Tg-Td≤ΔTlimit, then wind deflector adjust to the position of maximum air output, and the compression of air conditioner Unit frequency F is adjusted in compressor current frequency F0On the basis of reduce first and calculate the frequency after frequency Δ F, and indoor set The rotating speed N of blower fan is adjusted to the current rotating speed N of machine blower fan indoors0On the basis of increase by first calculate rotating speed Δ N；
S214, judge Tg-TdWhether it is more than or equal to 0, judges whether T is less than Tlimit, judge whether f is less than flimit；
S216, if Tg-Td>=0, or T<Tlimit, or f<flimit, then anti-condensation control is exited, if it is not, then returning to step Rapid S204.
The present embodiment additionally provides a kind of anti-condensation control device 10 of air conditioner, and Fig. 3 is one embodiment of the invention The schematic diagram of the anti-condensation control device 10 of air conditioner.
The anti-condensation control device 10 of the air conditioner of the present embodiment includes controller 13 and memory 11, the internal memory of memory 11 Computer program 12 is contained, and when computer program 12 is run so that controller 13 performs the control of any of the above-described embodiment Method processed.
The memory 11 of the present embodiment can be that such as flash memory, EEPROM, EPROM, hard disk or ROM etc electronics are deposited Reservoir, memory 11 have the memory space for the computer program 12 for being used to perform any method and step in the above method.It is logical Operation computer program 12 is crossed, controller 13 performs each step in the method for foregoing description, realizes that air conditioner is anti-condensation Control.
The condensation prevention control method of the air conditioner of the present embodiment, according to indoor environment temperature and indoor environment relative humidity meter Indoor environment dew-point temperature is calculated, and sets the specified conditions for opening anti-condensation pattern, further according to the heat exchanger disk of indoor set Pipe temperature judges to open the first anti-condensation pattern with the difference of indoor environment dew-point temperature and the comparative result of preset temperature difference Or the second anti-condensation pattern is opened, is that the unlatching of anti-condensation pattern sets specific condition, enters so as to accurate judgement anti-condensation The opportunity of dew pattern, and targetedly anti-condensation control is carried out according to the order of severity of dew condensation phenomenon, and then improve anti-condensation The flexibility of control and accuracy, prevent air conditioner from producing condensation.
Further, in the condensation prevention control method of the air conditioner of the present embodiment, in the calculation formula of ambient dew point temperature In introduce indoor environment relative humidity this variable, be used as using indoor environment relative humidity and indoor environment temperature and calculate dew point The variable of temperature, a kind of computational methods of new dew-point temperature being designed, the dew-point temperature obtained by the computational methods is more accurate, Closer in the indoor environment dew-point temperature of reality, accurately judge so as to be provided for the follow-up opportunity into anti-condensation pattern Foundation.
Further, in the condensation prevention control method of the air conditioner of the present embodiment, when opening the first anti-condensation pattern, The position of wind deflector and the frequency of compressor are adjusted, and the adjustment number of compressor frequency is determined with specially designed calculation formula Value, the dew condensation phenomenon of air conditioner can obtain effective control.When opening the second anti-condensation pattern, position and the pressure of wind deflector are adjusted The frequency of contracting machine, while the rotating speed of indoor set blower fan is adjusted, the adjustment of compressor frequency and the adjustment of the rotating speed of indoor set blower fan Accurate regulated value is provided in specially designed method, so as to effectively control the dew condensation phenomenon of air conditioner, reaches anti-condensation Accurate control.
So far, although those skilled in the art will appreciate that detailed herein have shown and described multiple showing for the present invention Example property embodiment, still, still can be direct according to present disclosure without departing from the spirit and scope of the present invention It is determined that or derive many other variations or modifications for meeting the principle of the invention.Therefore, the scope of the present invention is understood that and recognized It is set to and covers other all these variations or modifications.

Claims (10)

1. a kind of condensation prevention control method of air conditioner, including
After detection air conditioner is in refrigeration mode, indoor environment temperature, the indoor ring residing for the air conditioner room unit are detected The heat exchanger coils temperature of border relative humidity and the indoor set；
According to the indoor environment dew residing for indoor set described in the indoor environment temperature and the indoor environment relative humidity calculation Point temperature；
If the indoor environment temperature is more than or equal to indoor environment temperature predetermined threshold value, and the indoor environment relative humidity is big In or equal to indoor environment relative humidity predetermined threshold value, and the heat exchanger coils temperature of the indoor set is less than the indoor ring During the dew-point temperature of border, the anti-condensation pattern of the air conditioner is opened, the anti-condensation pattern is the first anti-condensation pattern or second Anti-condensation pattern；
Also, the unlatching of the first anti-condensation pattern and the unlatching of the described second anti-condensation pattern are all in accordance with the indoor set Heat exchanger coils temperature determines with the difference of the indoor environment dew-point temperature and the comparative result of preset temperature difference.
2. control method according to claim 1, wherein
The indoor environment dew-point temperature TdCalculation formula be：
<mrow> <msub> <mi>T</mi> <mi>d</mi> </msub> <mo>=</mo> <mfrac> <mi>b</mi> <mrow> <mfrac> <mi>a</mi> <mrow> <mi>lg</mi> <mrow> <mo>(</mo> <mi>f</mi> <mo>/</mo> <mn>100</mn> <mo>)</mo> </mrow> <mo>+</mo> <mfrac> <mrow> <mi>a</mi> <mo>&amp;times;</mo> <mi>T</mi> </mrow> <mrow> <mi>b</mi> <mo>+</mo> <mi>T</mi> </mrow> </mfrac> </mrow> </mfrac> <mo>-</mo> <mn>1</mn> </mrow> </mfrac> </mrow>
Wherein, T is the indoor environment temperature, and f is the indoor environment relative humidity, unit %, a=7.5, b= 237.3。
3. control method according to claim 1, wherein
If the difference of the heat exchanger coils temperature of the indoor set and the indoor environment dew-point temperature is more than the preset temperature Difference, open the first anti-condensation pattern.
4. control method according to claim 3, wherein
The first anti-condensation pattern includes：
The position of the wind deflector of the air outlet of the air conditioner room unit is detected, if the wind deflector is not in maximum air output Position, then adjust the position that the wind deflector is in maximum air output；And
The frequency for adjusting the compressor of the air conditioner extremely reduces the first calculating frequency on the basis of the compressor current frequency Frequency after rate.
5. control method according to claim 1, wherein
If the difference of the heat exchanger coils temperature of the indoor set and the indoor environment dew-point temperature is less than or equal to described pre- If during temperature gap, open the second anti-condensation pattern.
6. control method according to claim 5, wherein
The second anti-condensation pattern includes：
The position of the wind deflector of the air outlet of the air conditioner room unit is detected, if the wind deflector is not in maximum air output Position, then adjust the position that the wind deflector is in maximum air output；
The frequency for adjusting the compressor of the air conditioner extremely reduces the first calculating frequency on the basis of the compressor current frequency Frequency after rate；And
The rotating speed for adjusting the indoor set blower fan turns to increasing by the first calculating on the basis of the current rotating speed of indoor set blower fan Speed.
7. the control method according to claim 4 or 6, wherein
The calculation formula of the first calculating frequency Δ F is：Δ F=a × T+b × (Td-Tg)+c；
Wherein a=0.01~0.05, b=0.1~0.4, c=0.4~0.8, T are the indoor environment temperature, TdFor the interior Ambient dew point temperature, TgFor the heat exchanger coils temperature of the indoor set.
8. control method according to claim 6, wherein
The calculation formula of the first calculating rotating speed Δ N is：Δ N=int (m × (Td-Tg)+n)；
Wherein, int is round numbers function, m=3.5~5.0, n=10~40, TdFor the indoor environment dew-point temperature, TgFor institute State the heat exchanger coils temperature of indoor set.
9. control method according to claim 1, in addition to
When meeting following either conditions, terminate the anti-condensation pattern of the air conditioner, and adjust the air conditioner and prevent to be described Initial pattern before condensation pattern；
The condition includes：
The indoor environment temperature is less than the indoor environment temperature predetermined threshold value；
The indoor environment relative humidity is less than the indoor environment relative humidity predetermined threshold value；
The heat exchanger coils temperature of the indoor set is more than or equal to the indoor environment dew-point temperature.
10. a kind of anti-condensation control device of air conditioner, including
Controller and memory, the memory internal memory contain computer program, and when the computer program is run, make Obtain the controller and perform control method according to any one of claim 1 to 9.
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