CN105258295B - The condensation prevention control method and device of air conditioner - Google Patents
The condensation prevention control method and device of air conditioner Download PDFInfo
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- CN105258295B CN105258295B CN201510728305.9A CN201510728305A CN105258295B CN 105258295 B CN105258295 B CN 105258295B CN 201510728305 A CN201510728305 A CN 201510728305A CN 105258295 B CN105258295 B CN 105258295B
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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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
- F24F11/70—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
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—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
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/85—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using variable-flow pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of condensation prevention control method of air conditioner, the condensation prevention control method of air conditioner comprises the following steps：The current working frequency of environment temperature, the gentle compressor of indoor machine evaporation pipe is obtained, and obtains the humidity value RH1 of environment in the first preset time period after air conditioner is run；After air conditioner ran for the second preset time period, the humidity value RH2 of environment is obtained；Second preset time is more than the first preset time；Judge whether first condition is set up；The difference that first condition is humidity value RH1 and humidity value RH2 is less than or equal to first threshold and humidity value RH1 is more than or equal to Second Threshold；If so, the compressor operating frequency of air conditioner is then reduced according to the current working frequency of environment temperature, humidity value RH2, the gentle compressor of indoor machine evaporation pipe；If it is not, then control the compressor operating frequency of air conditioner constant.The invention also discloses a kind of anti-condensation control device of air conditioner.
Description
Technical field
The present invention relates to the condensation prevention control method and device of air-conditioning technical field, more particularly to air conditioner.
Background technology
It is well known that during air conditioner cooling in summer use, in air outlet position because cold wind and hot blast cross, air
Easily condensation is produced when relative humidity is big in air outlet.Condensation water produce after easily the positions such as air outlet, wind guide strip drippage or
Person blows out with air-supply.
The content of the invention
It is a primary object of the present invention to provide the condensation prevention control method and device of a kind of air conditioner, it is intended to effectively prevention
Dew condensation phenomenon is produced in air conditioner running, improves environmental degree of comfort.
To achieve the above object, a kind of condensation prevention control method of air conditioner provided by the invention comprises the following steps：
The current working frequency of environment temperature, the gentle compressor of indoor machine evaporation pipe is obtained, and obtains air conditioner operation
Afterwards in the first preset time period environment humidity value RH1；
After air conditioner ran for the second preset time period, the humidity value RH2 of environment is obtained；Second preset time is more than
First preset time；
Judge whether first condition is set up；The first condition is that the humidity value RH1 and humidity value RH2 difference is less than
It is more than or equal to Second Threshold equal to first threshold and humidity value RH1；
If so, then according to the current work of the environment temperature, humidity value RH2, the gentle compressor of indoor machine evaporation pipe
Frequency reduces the compressor operating frequency of air conditioner；
If it is not, then control the compressor operating frequency of air conditioner constant.
Preferably, the condensation prevention control method of the air conditioner also includes：
When the first condition is invalid, judge whether second condition is set up；The second condition is the humidity value
RH2 and humidity value RH1 difference are more than the 3rd threshold value, humidity value RH1 is less than the Second Threshold and humidity value RH2 is more than the
Four threshold values；3rd threshold value is more than the first threshold；
If so, then according to the current work of the environment temperature, humidity value RH2, the gentle compressor of indoor machine evaporation pipe
Frequency reduces the compressor operating frequency of air conditioner；
If it is not, then control the compressor operating frequency of air conditioner constant.
Preferably, it is described current according to the environment temperature, humidity value RH2, the gentle compressor of indoor machine evaporation pipe
The compressor operating frequency that working frequency reduces air conditioner includes：
Dew-point temperature TL is calculated according to the environment temperature T1 and humidity value RH2；The dew-point temperature TL meets：TL=a*
T1+b*RH2+c, wherein a, b and c are constant；
Calculated and adjusted according to the indoor machine evaporation pipe temperature T2, compressor current working frequency Fn and dew-point temperature TL
Target frequency F afterwards；The target frequency F meets：F=Fn-d (TL-T2), wherein, d is constant.
Preferably, the humidity value RH1 is the medial humidity value of environment in first preset time period.
Preferably, after air conditioner ran for the second preset time period, obtaining the humidity value RH2 of environment includes：
After air conditioner ran for the second preset time period, the wet of currently detected environment is obtained every prefixed time interval
Angle value RH2.
In addition, to achieve the above object, the present invention also provides a kind of anti-condensation control device of air conditioner, the air conditioner
Anti-condensation control device include：
Acquisition module, the working frequency current for obtaining environment temperature, the gentle compressor of indoor machine evaporation pipe, and obtain
Take air conditioner run after in the first preset time period environment humidity value RH1；After air conditioner ran for the second preset time period, obtain
Take the humidity value RH2 of environment；Second preset time is more than the first preset time；
First judge module, for judging whether first condition is set up；The first condition be the humidity value RH1 with it is wet
Angle value RH2 difference is less than or equal to first threshold and humidity value RH1 is more than or equal to Second Threshold；
Processing module, for when the first condition is set up, being steamed according to the environment temperature, humidity value RH2, indoor set
Sending out the current working frequency of the gentle compressor of device pipe reduces the compressor operating frequency of air conditioner；It is invalid in the first condition
When, control the compressor operating frequency of air conditioner constant.
Preferably, the anti-condensation control device of the air conditioner also includes：
Second judge module, for when the first condition is invalid, judging whether second condition is set up；Described second
Condition be that the humidity value RH2 and humidity value RH1 difference are more than the 3rd threshold value, humidity value RH1 is less than the Second Threshold and
Humidity value RH2 is more than the 4th threshold value；3rd threshold value is more than the first threshold；And when second condition is set up, trigger institute
Stating processing module reduces according to the current work frequency of the environment temperature, humidity value RH2, the gentle compressor of indoor machine evaporation pipe
The compressor operating frequency of rate air conditioner；When second condition is invalid, the compression of the processing module control air conditioner is triggered
Machine working frequency is constant.
Preferably, the processing module includes：
First computing unit, for calculating dew-point temperature TL according to the environment temperature T1 and humidity value RH2；The dew point
Temperature TL meets：TL=a*T1+b*RH2+c, wherein a, b and c are constant；
Second computing unit, for according to the current working frequency Fn of the indoor machine evaporation pipe temperature T2, compressor and
Dew-point temperature TL calculates the target frequency F after adjustment；The target frequency F meets：F=Fn-d (TL-T2), wherein, d is normal
Number.
Preferably, the humidity value RH1 is the medial humidity value of environment in first preset time period.
Preferably, the acquisition module is specifically used for, after air conditioner ran for the second preset time period, every preset time
The current humidity value RH2 of interval detection environment.
In the embodiment of the present invention, the work frequency current by obtaining environment temperature, the gentle compressor of indoor machine evaporation pipe
Rate, and obtain the humidity value RH1 of environment in the first preset time period after air conditioner is run；The second preset time is run in air conditioner
Duan Hou, obtain the humidity value RH2 of environment；Second preset time is more than the first preset time；Whether judge first condition
Set up；The first condition is that the humidity value RH1 and humidity value RH2 difference is less than or equal to first threshold and humidity value RH1
More than or equal to Second Threshold；If so, then worked as according to the environment temperature, humidity value RH2, the gentle compressor of indoor machine evaporation pipe
Preceding working frequency reduces the compressor operating frequency of air conditioner；If it is not, then control the compressor operating frequency of air conditioner constant.
Due to adjusting the running status of compressor according to the variable condition of ambient humidity, so as to effectively prevent air conditioner running
Middle generation dew condensation phenomenon, improve environmental degree of comfort.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the condensation prevention control method first embodiment of air conditioner of the present invention；
Fig. 2 is the schematic flow sheet of the condensation prevention control method second embodiment of air conditioner of the present invention；
Fig. 3 is that low-frequency refinement flow signal is dropped in the condensation prevention control method 3rd embodiment of air conditioner of the present invention
Figure；
Fig. 4 is the high-level schematic functional block diagram of the anti-condensation control device first embodiment of air conditioner of the present invention；
Fig. 5 is the high-level schematic functional block diagram of the anti-condensation control device second embodiment of air conditioner of the present invention；
Fig. 6 shows for the refinement functional module of processing module in the anti-condensation control device 3rd embodiment of air conditioner of the present invention
It is intended to.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention provides a kind of condensation prevention control method of air conditioner, reference picture 1, in the anti-condensation control of air conditioner of the present invention
In method first embodiment processed, the condensation prevention control method of the air conditioner includes：
Step S10, the current working frequency of environment temperature, the gentle compressor of indoor machine evaporation pipe is obtained, and obtain sky
Adjust the humidity value RH1 of environment in the first preset time period after device operation；
The condensation prevention control method for the air conditioner that the present embodiment provides is mainly used in frequency-conversion air-conditioning system, for sky
The compressor frequency of device is adjusted to be controlled, to prevent from producing dew condensation phenomenon during air conditioner refrigerating operaton.
Specifically, TEMP can be set in the air inlet of indoor apparatus of air conditioner and indoor machine evaporation tube wall respectively
Device, to detect indoor temperature and indoor machine evaporation Guan Wen, by obtaining the temperature value detected on each temperature sensor
Obtain indoor temperature and indoor machine evaporation Guan Wen.The current working frequency of above-mentioned compressor can be run by obtaining air conditioner
Parameter information can obtain.
The time span of above-mentioned first preset time period can be configured according to being actually needed, the present embodiment humidity value
When RH1 refers to that controller refrigeration starts, the initial value of ambient humidity.Therefore the time span of first preset time period is shorter,
Such as first preset time period scope value can be 0~5 minute, it is preferable that can be 1~2 minute.Above-mentioned humidity value
RH1 can be the humidity value of a certain moment detection in the first preset time period, or the environment in the first preset time
Medial humidity value.For example, the humidity value of a secondary environment can be obtained at regular intervals, the humidity value repeatedly obtained is then calculated
Be averaged and be worth to above-mentioned humidity value RH1.It is understood that the detection of humidity value can be configured according to being actually needed,
In the present embodiment, it is preferable that humidity sensor can be set in the air inlet of indoor apparatus of air conditioner, to detect the humidity of environment
Value, and can obtain the humidity value of environment by obtaining the humidity value detected by the humidity sensor.
Step S20, after air conditioner ran for the second preset time period, obtain the humidity value RH2 of environment；Described second is preset
Time is more than the first preset time；
Step S30, judges whether first condition is set up；The first condition is the humidity value RH1 and humidity value RH2's
Difference is less than or equal to first threshold and humidity value RH1 is more than or equal to Second Threshold；If so, step S40 is then performed, if it is not, then walking
Rapid S50；
Step S40, according to the current work of the environment temperature, humidity value RH2, the gentle compressor of indoor machine evaporation pipe
Frequency reduces the compressor operating frequency of air conditioner；
Step S50, control the compressor operating frequency of air conditioner constant.
In the present embodiment, the time span of above-mentioned second preset time period can be configured according to being actually needed, herein
Do not do and further limit.For example, the scope value of the time span of second preset time period can be 20~40 minutes, it is excellent
Elect as 25~35 minutes.Specifically, above-mentioned humidity value, it can be the average value of multi collect, humidity sensor can also be used
The humidity value instantaneously gathered.For example, in the present embodiment, above-mentioned steps S20 is specifically as follows：It is preset in air conditioner operation second
After period, the humidity value RH2 of currently detected environment is obtained every prefixed time interval.
After each detection gets current humidity value RH2, first can be carried out according to the humidity value RH2 detected
Part judges, judges whether above-mentioned first condition meets.
In practical application, can first determine whether above-mentioned humidity value RH1 is more than or equal to Second Threshold, work as humidity value
When RH1 is less than Second Threshold, it is determined that ambient humidity is relatively low, without carrying out down conversion process, then keeps compressor work at present frequency
Rate；When humidity value is more than or equal to Second Threshold, it is determined that ambient humidity is higher, may result in environment generation condensation and shows
Situation about declining as, it is necessary to determine whether humidity value RH2 and humidity value RH1 size of the difference, determining ambient humidity.Specifically
Ground, if judge that humidity value RH1 is more than or equal to Second Threshold, after humidity value RH2 is subsequently detected every time, directly judge wet
Whether angle value RH1 and humidity value RH2 difference is less than or equal to first threshold：When humidity value RH1 and humidity value RH2 difference are less than
Equal to first threshold, illustrate in air conditioner running, ambient air relative humidity humidity declines seldom, or there are other water
Hot repair is charged to interior, and air conditioner continues to run with the risk that condensation occurs, it is necessary to be done to cooler compressor running frequency anti-condensation
Dew limitation (the compressor operating frequency for reducing air conditioner)；When humidity value RH1 and humidity value RH2 difference is more than described first
Threshold value, illustrate in air conditioner running, ambient air relative humidity humidity declines a lot, and air conditioner, which continues to run with, not to be sent out
The risk of raw condensation, cooler compressor running frequency do not do anti-condensation limitation (i.e. not to the compressor operating frequency of air conditioner
It is adjusted).
It is understood that above-mentioned first threshold and the size of Second Threshold can be configured according to being actually needed, example
Such as, in the present embodiment, the scope value of above-mentioned first threshold can be 1%~15%, preferably 5%~10%；Above-mentioned second
The scope value of threshold value can be 60%~75%, preferably 65%~70%.
It is understood that in the present embodiment, in the first preset time period and the second preset time period of air conditioner operation
The interior refrigeration that air conditioner can be effectively ensured without anti-condensation operation, so that the temperature value of environment lowers rapidly, with
Meet user to temperature requirements.
It should be noted that for the mode of the compressor operating frequency of low air conditioner can be carried out according to being actually needed
Set, in the present embodiment, it is preferable that can be calculated first according to the environment temperature and humidity value RH2 and obtain dew-point temperature, so
Compressor operating frequency after adjusting is calculated according to the current working frequency of the dew-point temperature, the gentle compressor of indoor machine evaporation pipe afterwards
Rate.
In the embodiment of the present invention, the work frequency current by obtaining environment temperature, the gentle compressor of indoor machine evaporation pipe
Rate, and obtain the humidity value RH1 of environment in the first preset time period after air conditioner is run；The second preset time is run in air conditioner
Duan Hou, obtain the humidity value RH2 of environment；Second preset time is more than the first preset time；Judge first condition whether into
It is vertical；The difference that the first condition is the humidity value RH1 and humidity value RH2 is less than or equal to first threshold and humidity value RH1 is big
In equal to Second Threshold；It is if so, then current according to the environment temperature, humidity value RH2, the gentle compressor of indoor machine evaporation pipe
Working frequency reduce air conditioner compressor operating frequency；If it is not, then control the compressor operating frequency of air conditioner constant.By
In the running status that compressor is adjusted according to the variable condition of ambient humidity, so as to effectively prevent in air conditioner running
Dew condensation phenomenon is produced, improves environmental degree of comfort.
With further reference to Fig. 2, based on above-described embodiment, in the condensation prevention control method second embodiment of air conditioner of the present invention
In, should also it include before above-mentioned steps S50 is performed：
Step S60, judges whether second condition is set up；The second condition is the humidity value RH2 and humidity value RH1's
Difference is more than the 3rd threshold value, humidity value RH1 is less than the Second Threshold and humidity value RH2 is more than the 4th threshold value；3rd threshold
Value is more than the first threshold；If so, then performing step S40, step S50 is otherwise performed.
In the present embodiment, when the first condition is invalid, second condition (the humidity value RH2 and humidity value are judged
RH1 difference is more than the 3rd threshold value, humidity value RH1 is less than the Second Threshold and humidity value RH2 is more than the 4th threshold value) whether
Set up.Specifically, (determine that ambient humidity is relatively low) in the case where humidity value RH1 is less than Second Threshold, in order to avoid in air-conditioning
Have in device follow-up operation and rain or other humid air are added in indoor environment, cause situation that ambient humidity is larger, it is necessary to
Determine whether humidity value RH2 and humidity value RH1 difference are more than the 3rd threshold value, to prevent the humidity of environment due to outside
Influence causes to produce dew condensation phenomenon.As humidity value RH2 and humidity value RH1, and when RH2 is more than four threshold values, then air conditioner is judged
The risk that condensation occurs is continued to run with, it is necessary to do anti-condensation limitation to cooler compressor running frequency.
It is to be appreciated that the size of above-mentioned 3rd threshold value and the 4th threshold value can be carried out according to being actually needed, the present embodiment
In, the span of above-mentioned 3rd threshold value can be 10%~30%, preferably 15%~25%；The value of above-mentioned 4th threshold value
It may range from 70%~90%, preferably 75%~85%.
Further, reference picture 3, it is real in the condensation prevention control method the 3rd of air conditioner of the present invention based on above-described embodiment
Apply in example, above-mentioned steps S30 includes：
Step S31, dew-point temperature TL is calculated according to the environment temperature T1 and humidity value RH2；The dew-point temperature TL expires
Foot：TL=a*T1+b*RH2+c, wherein a, b and c are constant；
Step S31, according to the indoor machine evaporation pipe temperature T2, compressor current working frequency Fn and dew-point temperature TL
Calculate the target frequency F after adjustment；The target frequency F meets：F=Fn-d (TL-T2), wherein, d is constant.
In the present embodiment, above-mentioned a, b, c and d size can be configured according to being actually needed, above-mentioned in the present embodiment
A interval is 0.4~1.5, preferably 0.8~1.2；Above-mentioned b interval is 10~40, preferably 15~30；On
The interval for stating c is (- 40)~30, is preferably (- 30)~10；Above-mentioned d interval is 0~6, preferably 1~3.Can
With understanding, in order to ensure refrigeration, it is preferable that the lower limit of working frequency can be set.Specifically, it is somebody's turn to do when F is less than
During lower limit, then directly the working frequency of compressor is controlled to use using the lower limit as target frequency.It is i.e. current in compressor
Working frequency when being the lower limit, no longer carry out down conversion process, so as to prevent the working frequency of compressor too low, cause air-conditioning
Device can not normal refrigeration work.
The present invention also provides a kind of anti-condensation control device of air conditioner, and reference picture 4, in one embodiment, the present invention carries
The anti-condensation control device of the air conditioner of confession includes：
Acquisition module 10, the working frequency current for obtaining environment temperature, the gentle compressor of indoor machine evaporation pipe, and
Obtain the humidity value RH1 of environment in the first preset time period after air conditioner is run；After air conditioner ran for the second preset time period,
Obtain the humidity value RH2 of environment；Second preset time is more than the first preset time；
First judge module 20, for judging whether first condition is set up；The first condition be the humidity value RH1 with
Humidity value RH2 difference is less than or equal to first threshold and humidity value RH1 is more than or equal to Second Threshold；
Processing module 30, for when the first condition is set up, according to the environment temperature, humidity value RH2, indoor set
The current working frequency of the gentle compressor of evaporator tube reduces the compressor operating frequency of air conditioner；The first condition not into
Immediately, control the compressor operating frequency of air conditioner constant.
The anti-condensation control device for the air conditioner that the present embodiment provides is mainly used in frequency-conversion air-conditioning system, for sky
The compressor frequency of device is adjusted to be controlled, to prevent from producing dew condensation phenomenon during air conditioner refrigerating operaton.
Specifically, TEMP can be set in the air inlet of indoor apparatus of air conditioner and indoor machine evaporation tube wall respectively
Device, to detect indoor temperature and indoor machine evaporation Guan Wen, by obtaining the temperature value detected on each temperature sensor
Obtain indoor temperature and indoor machine evaporation Guan Wen.The current working frequency of above-mentioned compressor can be run by obtaining air conditioner
Parameter information can obtain.
The time span of above-mentioned first preset time period can be configured according to being actually needed, the present embodiment humidity value
When RH1 refers to that controller refrigeration starts, the initial value of ambient humidity.Therefore the time span of first preset time period is shorter,
Such as first preset time period scope value can be 0~5 minute, it is preferable that can be 1~2 minute.Above-mentioned humidity value
RH1 can be the humidity value of a certain moment detection in the first preset time period, or the environment in the first preset time
Medial humidity value.For example, the humidity value of a secondary environment can be obtained at regular intervals, the humidity value repeatedly obtained is then calculated
Be averaged and be worth to above-mentioned humidity value RH1.It is understood that the detection of humidity value can be configured according to being actually needed,
In the present embodiment, it is preferable that humidity sensor can be set in the air inlet of indoor apparatus of air conditioner, to detect the humidity of environment
Value, and can obtain the humidity value of environment by obtaining the humidity value detected by the humidity sensor.
In the present embodiment, the time span of above-mentioned second preset time period can be configured according to being actually needed, herein
Do not do and further limit.For example, the scope value of the time span of second preset time period can be 20~40 minutes, it is excellent
Elect as 25~35 minutes.Specifically, above-mentioned humidity value, it can be the average value of multi collect, humidity sensor can also be used
The humidity value instantaneously gathered.For example, in the present embodiment, above-mentioned acquisition module 10 is specifically used for, it is pre- in air conditioner operation second
After putting the period, every the current humidity value RH2 of prefixed time interval detection environment.
After each detection gets current humidity value RH2, first can be carried out according to the humidity value RH2 detected
Part judges, judges whether above-mentioned first condition meets.
In practical application, can first determine whether above-mentioned humidity value RH1 is more than or equal to Second Threshold, work as humidity value
When RH1 is less than Second Threshold, it is determined that ambient humidity is relatively low, without carrying out down conversion process, then keeps compressor work at present frequency
Rate；When humidity value is more than or equal to Second Threshold, it is determined that ambient humidity is higher, may result in environment generation condensation and shows
Situation about declining as, it is necessary to determine whether humidity value RH2 and humidity value RH1 size of the difference, determining ambient humidity.Specifically
Ground, if judge that humidity value RH1 is more than or equal to Second Threshold, after humidity value RH2 is subsequently detected every time, directly judge wet
Whether angle value RH1 and humidity value RH2 difference is less than or equal to first threshold：When humidity value RH1 and humidity value RH2 difference are less than
Equal to first threshold, illustrate in air conditioner running, ambient air relative humidity humidity declines seldom, or there are other water
Hot repair is charged to interior, and air conditioner continues to run with the risk that condensation occurs, it is necessary to be done to cooler compressor running frequency anti-condensation
Dew limitation (the compressor operating frequency for reducing air conditioner)；When humidity value RH1 and humidity value RH2 difference is more than described first
Threshold value, illustrate in air conditioner running, ambient air relative humidity humidity declines a lot, and air conditioner, which continues to run with, not to be sent out
The risk of raw condensation, cooler compressor running frequency do not do anti-condensation limitation (i.e. not to the compressor operating frequency of air conditioner
It is adjusted).
It is understood that above-mentioned first threshold and the size of Second Threshold can be configured according to being actually needed, example
Such as, in the present embodiment, the scope value of above-mentioned first threshold can be 1%~15%, preferably 5%~10%；Above-mentioned second
The scope value of threshold value can be 60%~75%, preferably 65%~70%.
It is understood that in the present embodiment, in the first preset time period and the second preset time period of air conditioner operation
The interior refrigeration that air conditioner can be effectively ensured without anti-condensation operation, so that the temperature value of environment lowers rapidly, with
Meet user to temperature requirements.
It should be noted that for the mode of the compressor operating frequency of low air conditioner can be carried out according to being actually needed
Set, in the present embodiment, it is preferable that can be calculated first according to the environment temperature and humidity value RH2 and obtain dew-point temperature, so
Compressor operating frequency after adjusting is calculated according to the current working frequency of the dew-point temperature, the gentle compressor of indoor machine evaporation pipe afterwards
Rate.
In the embodiment of the present invention, the work frequency current by obtaining environment temperature, the gentle compressor of indoor machine evaporation pipe
Rate, and obtain the humidity value RH1 of environment in the first preset time period after air conditioner is run；The second preset time is run in air conditioner
Duan Hou, obtain the humidity value RH2 of environment；Second preset time is more than the first preset time；Judge first condition whether into
It is vertical；The difference that the first condition is the humidity value RH1 and humidity value RH2 is less than or equal to first threshold and humidity value RH1 is big
In equal to Second Threshold；It is if so, then current according to the environment temperature, humidity value RH2, the gentle compressor of indoor machine evaporation pipe
Working frequency reduce air conditioner compressor operating frequency；If it is not, then control the compressor operating frequency of air conditioner constant.By
In the running status that compressor is adjusted according to the variable condition of ambient humidity, so as to effectively prevent in air conditioner running
Dew condensation phenomenon is produced, improves environmental degree of comfort.
With further reference to Fig. 5, based on above-described embodiment, in the anti-condensation control device second embodiment of air conditioner of the present invention
In, the anti-condensation control device of above-mentioned air conditioner also includes：
Second judge module 40, for when the first condition is invalid, judging whether second condition is set up；Described
The difference that two conditions are the humidity value RH2 and humidity value RH1 is more than the 3rd threshold value, humidity value RH1 is less than the Second Threshold,
And humidity value RH2 is more than the 4th threshold value；3rd threshold value is more than the first threshold；And when second condition is set up, triggering
The processing module 30 is according to the current work frequency of the environment temperature, humidity value RH2, the gentle compressor of indoor machine evaporation pipe
Rate reduces the compressor operating frequency of air conditioner；When second condition is invalid, triggers the processing module 30 and control air conditioner
Compressor operating frequency it is constant.
In the present embodiment, when the first condition is invalid, second condition (the humidity value RH2 and humidity value are judged
RH1 difference is more than the 3rd threshold value, humidity value RH1 is less than the Second Threshold and humidity value RH2 is more than the 4th threshold value) whether
Set up.Specifically, (determine that ambient humidity is relatively low) in the case where humidity value RH1 is less than Second Threshold, in order to avoid in air-conditioning
Have in device follow-up operation and rain or other humid air are added in indoor environment, cause situation that ambient humidity is larger, it is necessary to
Determine whether humidity value RH2 and humidity value RH1 difference are more than the 3rd threshold value, to prevent the humidity of environment due to outside
Influence causes to produce dew condensation phenomenon.As humidity value RH2 and humidity value RH1, and when RH2 is more than four threshold values, then air conditioner is judged
The risk that condensation occurs is continued to run with, it is necessary to do anti-condensation limitation to cooler compressor running frequency.
It is to be appreciated that the size of above-mentioned 3rd threshold value and the 4th threshold value can be carried out according to being actually needed, the present embodiment
In, the span of above-mentioned 3rd threshold value can be 10%~30%, preferably 15%~25%；The value of above-mentioned 4th threshold value
It may range from 70%~90%, preferably 75%~85%.
Further, reference picture 6, it is real in the anti-condensation control device the 3rd of air conditioner of the present invention based on above-described embodiment
Apply in example, above-mentioned processing module 30 includes：
First computing unit 31, for calculating dew-point temperature TL according to the environment temperature T1 and humidity value RH2；The dew
Point temperature TL meets：TL=a*T1+b*RH2+c, wherein a, b and c are constant；
Second computing unit 32, for according to the current working frequency Fn of the indoor machine evaporation pipe temperature T2, compressor
The target frequency F after adjustment is calculated with dew-point temperature TL；The target frequency F meets：F=Fn-d (TL-T2), wherein, d is normal
Number.
In the present embodiment, above-mentioned a, b, c and d size can be configured according to being actually needed, above-mentioned in the present embodiment
A interval is 0.4~1.5, preferably 0.8~1.2；Above-mentioned b interval is 10~40, preferably 15~30；On
The interval for stating c is (- 40)~30, is preferably (- 30)~10；Above-mentioned d interval is 0~6, preferably 1~3.Can
With understanding, in order to ensure refrigeration, it is preferable that the lower limit of working frequency can be set.Specifically, it is somebody's turn to do when F is less than
During lower limit, then directly the working frequency of compressor is controlled to use using the lower limit as target frequency.It is i.e. current in compressor
Working frequency when being the lower limit, no longer carry out down conversion process, so as to prevent the working frequency of compressor too low, cause air-conditioning
Device can not normal refrigeration work.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
- A kind of 1. condensation prevention control method of air conditioner, it is characterised in that the condensation prevention control method of the air conditioner include with Lower step：The current working frequency of environment temperature, the gentle compressor of indoor machine evaporation pipe is obtained, and obtains after air conditioner operation the The humidity value RH1 of environment in one preset time period；After air conditioner ran for the second preset time period, the humidity value RH2 of environment is obtained；Second preset time is more than first Preset time；Judge whether first condition is set up；The first condition is that the humidity value RH1 and humidity value RH2 difference is less than or equal to First threshold and humidity value RH1 is more than or equal to Second Threshold；If so, then according to the current working frequency of the environment temperature, humidity value RH2, the gentle compressor of indoor machine evaporation pipe Reduce the compressor operating frequency of air conditioner；If it is not, then control the compressor operating frequency of air conditioner constant.
- 2. the condensation prevention control method of air conditioner as claimed in claim 1, it is characterised in that the anti-condensation control of the air conditioner Method processed also includes：When the first condition is invalid, judge whether second condition is set up；The second condition be the humidity value RH2 with Humidity value RH1 difference is more than the 3rd threshold value, humidity value RH1 is less than the Second Threshold and humidity value RH2 is more than the 4th threshold Value；3rd threshold value is more than the first threshold；If so, then according to the current working frequency of the environment temperature, humidity value RH2, the gentle compressor of indoor machine evaporation pipe Reduce the compressor operating frequency of air conditioner；If it is not, then control the compressor operating frequency of air conditioner constant.
- 3. the condensation prevention control method of air conditioner as claimed in claim 1 or 2, it is characterised in that described according to the environment The current working frequency of temperature, humidity value RH2, the gentle compressor of indoor machine evaporation pipe reduces the compressor operating frequency of air conditioner Rate includes：Dew-point temperature TL is calculated according to the environment temperature T1 and humidity value RH2；The dew-point temperature TL meets：TL=a*T1+ B*RH2+c, wherein a, b and c are constant；After adjustment being calculated according to the indoor machine evaporation pipe temperature T2, compressor current working frequency Fn and dew-point temperature TL Target frequency F；The target frequency F meets：F=Fn-d (TL-T2), wherein, d is constant.
- 4. the condensation prevention control method of air conditioner as claimed in claim 1, it is characterised in that the humidity value RH1 is described The medial humidity value of environment in first preset time period.
- 5. the condensation prevention control method of air conditioner as claimed in claim 1, it is characterised in that preset in air conditioner operation second After period, obtaining the humidity value RH2 of environment includes：After air conditioner ran for the second preset time period, the humidity value of currently detected environment is obtained every prefixed time interval RH2。
- 6. the anti-condensation control device of a kind of air conditioner, it is characterised in that the anti-condensation control device of the air conditioner includes：Acquisition module, the working frequency current for obtaining environment temperature, the gentle compressor of indoor machine evaporation pipe, and obtain sky Adjust the humidity value RH1 of environment in the first preset time period after device operation；After air conditioner ran for the second preset time period, ring is obtained The humidity value RH2 in border；Second preset time is more than the first preset time；First judge module, for judging whether first condition is set up；The first condition is the humidity value RH1 and humidity value RH2 difference is less than or equal to first threshold and humidity value RH1 is more than or equal to Second Threshold；Processing module, for when the first condition is set up, according to the environment temperature, humidity value RH2, indoor machine evaporation Managing the current working frequency of gentle compressor reduces the compressor operating frequency of air conditioner；When the first condition is invalid, Control the compressor operating frequency of air conditioner constant.
- 7. the anti-condensation control device of air conditioner as claimed in claim 6, it is characterised in that the anti-condensation control of the air conditioner Device processed also includes：Second judge module, for when the first condition is invalid, judging whether second condition is set up；The second condition It is less than the Second Threshold and humidity more than the 3rd threshold value, humidity value RH1 for the humidity value RH2 and humidity value RH1 difference Value RH2 is more than the 4th threshold value；3rd threshold value is more than the first threshold；And when second condition is set up, trigger the place Manage module reduces sky according to the current working frequency of the environment temperature, humidity value RH2, the gentle compressor of indoor machine evaporation pipe Adjust the compressor operating frequency of device；When second condition is invalid, the compressor work of the processing module control air conditioner is triggered Working frequency is constant.
- 8. the anti-condensation control device of air conditioner as claimed in claims 6 or 7, it is characterised in that the processing module includes：First computing unit, for calculating dew-point temperature TL according to the environment temperature T1 and humidity value RH2；The dew-point temperature TL meets：TL=a*T1+b*RH2+c, wherein a, b and c are constant；Second computing unit, for according to the indoor machine evaporation pipe temperature T2, compressor current working frequency Fn and dew point Temperature TL calculates the target frequency F after adjustment；The target frequency F meets：F=Fn-d (TL-T2), wherein, d is constant.
- 9. the anti-condensation control device of air conditioner as claimed in claim 6, it is characterised in that the humidity value RH1 is described The medial humidity value of environment in first preset time period.
- 10. the anti-condensation control device of air conditioner as claimed in claim 6, it is characterised in that the acquisition module is specifically used In after air conditioner ran for the second preset time period, every the humidity value of the currently detected environment of prefixed time interval acquisition RH2。
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| CN106091237B (en) * | 2016-06-01 | 2019-06-04 | 广东美的制冷设备有限公司 | The anti-condensation progress control method of air-conditioning and device |
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| CN107192016B (en) * | 2017-05-17 | 2020-08-04 | Tcl空调器(中山)有限公司 | Air conditioner and dew prevention method thereof |
| CN107255341B (en) * | 2017-06-15 | 2020-06-05 | 广东美的制冷设备有限公司 | Control method, control device, air conditioner, and computer-readable storage medium |
| CN107421061B (en) * | 2017-07-06 | 2020-04-24 | 青岛海尔空调器有限总公司 | Anti-condensation control method and device for air conditioner |
| CN107621049B (en) * | 2017-09-04 | 2020-02-04 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner and air conditioner |
| CN107588502B (en) * | 2017-09-04 | 2020-08-04 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner and air conditioner |
| CN108679820B (en) * | 2018-04-18 | 2021-05-25 | 青岛海尔空调器有限总公司 | Anti-condensation air conditioner control method and device |
| CN109724213B (en) * | 2018-12-13 | 2020-11-03 | 青岛海尔空调器有限总公司 | Air conditioner and control method thereof |
| CN110486925A (en) * | 2019-08-22 | 2019-11-22 | 宁波奥克斯电气股份有限公司 | A kind of air conditioner condensation prevention control method, device and air conditioner |
| CN111397093B (en) * | 2020-03-30 | 2021-12-21 | 广东美的制冷设备有限公司 | Condensation preventing method and device for air conditioner, air conditioner and electronic equipment |
| CN113154638B (en) * | 2021-03-22 | 2022-08-19 | 青岛海尔空调器有限总公司 | Method and device for controlling condensation prevention of air conditioner and air conditioner |
| CN114593503B (en) * | 2022-03-03 | 2024-01-30 | 广州松下空调器有限公司 | Anti-condensation control method and device for air conditioner, storage medium and computer equipment |
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