CN104949270B - Refrigeration control method, device and the air conditioner of air conditioner - Google Patents
Refrigeration control method, device and the air conditioner of air conditioner Download PDFInfo
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- CN104949270B CN104949270B CN201510325468.2A CN201510325468A CN104949270B CN 104949270 B CN104949270 B CN 104949270B CN 201510325468 A CN201510325468 A CN 201510325468A CN 104949270 B CN104949270 B CN 104949270B
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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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses a kind of refrigeration control method of air conditioner, including：When air conditioner enters refrigeration mode, current indoor environment temperature and current indoor ambient humidity are obtained；Current indoor water capacity is obtained according to the current indoor environment temperature and the current indoor ambient humidity；When the current indoor water capacity is less than or equal to target moisture content, the indoor heat exchanger coil temperature of the air conditioner is detected；Judge whether the indoor heat exchanger coil temperature is less than or equal to the dew-point temperature of present air；If so, then adjusting the operating air velocity of the indoor fan of the air conditioner and the running frequency of compressor.The invention also discloses a kind of refrigeration control device of air conditioner and air conditioner.The present invention is realized during air conditioner refrigerating operaton, is maintained indoor environment humidity in target humidity, is improved the comfortableness that user uses air conditioner.In addition, it is not necessary that the part such as increase humidification apparatus, reduces the manufacturing cost of air conditioner.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly to a kind of refrigeration control method of air conditioner, device and air conditioner.
Background technology
Air conditioner is during refrigerating operaton, before environment temperature reaches target temperature indoors, the load of indoor environment
When larger, air conditioner cooling and maintenance load need larger refrigerating capacity.The compressor of air conditioner will be always maintained at higher
Frequency is run, and the indoor heat exchanger coil temperature of air conditioner can be caused too low, and the always below dew-point temperature of air.So that
Air conditioner is constantly in the state of refrigerated dehumidification, cause user's indoor environment humidity during using air conditioner relatively low and
Feel to dry very much.Accordingly, when the load of environment is smaller indoors, the refrigerating capacity that air conditioner maintains load to need is smaller.Cause
The compressor of this air conditioner is always maintained at low frequency operation, and the indoor heat exchanger coil temperature of air conditioner can be caused higher.So as to
So that air conditioner is constantly in the state that does not dehumidify of refrigeration, cause user during using air conditioner indoor environment humidity compared with
It is high and feel more vexed wet.
At present, existing air conditioner is in process of refrigerastion, the control of indoor environment humidity mainly using humidifier or its
His humidification apparatus.When indoor environment is relatively dry in refrigerated dehumidification process, humidified using humidifier, but in dehumidifying
The process indoor environment that is also relatively hard to keep is controlled in comfort humidity at different temperature, easily makes user feel to dry or vexed
It is wet.
The content of the invention
It is a primary object of the present invention to provide a kind of refrigeration control method of air conditioner, device and air conditioner, it is intended to real
Existing air conditioner maintains indoor environment humidity in target humidity during refrigeration, and reduces the cost of air conditioner manufacture.
To achieve the above object, the invention provides a kind of refrigeration control method of air conditioner, comprise the following steps：
S10, when air conditioner enters refrigeration mode, obtain current indoor environment temperature and current indoor ambient humidity；
S20, current indoor water capacity obtained according to the current indoor environment temperature and the current indoor ambient humidity；
S30, when the current indoor water capacity is less than or equal to target moisture content, detect that the interior of the air conditioner is changed
Hot device coil temperature；
S40, judge the indoor heat exchanger coil temperature whether be less than or equal to present air dew-point temperature；
S50, if so, then adjust the operating air velocity of the indoor fan of the air conditioner and the running frequency of compressor, and turn
Enter step S10；
S60, if it is not, being then transferred to step S10；
Wherein, the step S50 includes：
The preset wind speed that operates in of the indoor fan is controlled, and every the second preset time, the compressor is current
The frequency of operation reduces the first predeterminated frequency, until reaching predetermined frequency, and is transferred to step S10.
The step S50 also includes：
By the default wind speed of operating air velocity increase by second of the indoor fan, and every the 3rd preset time, by the pressure
The frequency that contracting machine is currently run reduces the second predeterminated frequency, until reaching predetermined frequency, and is transferred to step S10.
Preferably, include after the step S20：
When the current indoor water capacity is more than target moisture content, the indoor heat exchanger coil pipe temperature of the air conditioner is detected
Degree；
Judge whether the indoor heat exchanger coil temperature is more than the dew-point temperature of present air；
If so, the default wind speed of wind speed reduction by first for then currently running the indoor fan, maintains the first preset time,
And it is transferred to step S10；
If it is not, being then transferred to step S10.
In addition, to achieve the above object, present invention also offers a kind of refrigeration control device of air conditioner, including：
Acquisition module, for obtaining current indoor environment temperature and current indoor environment when air conditioner enters refrigeration mode
Humidity；
Water capacity acquisition module, for according to the current indoor environment temperature and current indoor ambient humidity acquisition
Current indoor water capacity；
First detection module, for when the current indoor water capacity is less than or equal to target moisture content, detection to be described
The indoor heat exchanger coil temperature of air conditioner；
First judge module, for judging whether the indoor heat exchanger coil temperature is less than or equal to the dew of present air
Point temperature；
First processing module, if being less than or equal to the dew point temperature of present air for the indoor heat exchanger coil temperature
Degree, then adjust the operating air velocity of the indoor fan of the air conditioner and the running frequency of compressor, and is continued by acquisition module to obtain
Take current indoor environment temperature and current indoor ambient humidity；Otherwise, directly continued to obtain current indoor environment by acquisition module
Temperature and current indoor ambient humidity；
The first processing module is additionally operable to, and control the indoor fan operates in preset wind speed, and pre- every second
If the time, the frequency that the compressor is currently run reduces the first predeterminated frequency, until predetermined frequency is reached, and by acquisition mould
Block continues to obtain current indoor environment temperature and current indoor ambient humidity.
The first processing module is additionally operable to, by the default wind speed of operating air velocity increase by second of the indoor fan, and often
Every the 3rd preset time, the frequency that the compressor is currently run reduces the second predeterminated frequency, until predetermined frequency is reached, and
Continued to obtain current indoor environment temperature and current indoor ambient humidity by acquisition module.
Preferably, the refrigeration control device of the air conditioner also includes：
Second detection module, for when the current indoor water capacity is more than target moisture content, detecting the air conditioner
Indoor heat exchanger coil temperature；
Second judge module, for judging whether the indoor heat exchanger coil temperature is more than the dew point temperature of present air
Degree；
Second processing module, will if being more than the dew-point temperature of present air for the indoor heat exchanger coil temperature
The default wind speed of wind speed reduction by first that the indoor fan is currently run, maintains the first preset time, and continued by acquisition module
Obtain current indoor environment temperature and current indoor ambient humidity；Otherwise, directly continued to obtain current indoor ring by acquisition module
Border temperature and current indoor ambient humidity.
In addition, to achieve the above object, present invention also offers a kind of air conditioner, the indoor set of the air conditioner is provided with
Temperature sensor, humidity sensor and indoor heat exchanger coil temperature detection module, are respectively used to gather current indoor environment temperature
Degree, current indoor ambient humidity and indoor heat exchanger coil temperature, the system of the air conditioner also air conditioner including said structure
Cold control device, the refrigeration control device is used for according to the current indoor environment temperature and the current indoor environmental wet
Degree obtains current indoor water capacity, and is changed when meeting the current indoor water capacity less than or equal to target moisture content, and interior
When hot device coil temperature is less than or equal to the dew-point temperature of present air, the operating air velocity of the indoor fan of the air conditioner is adjusted
And the running frequency of compressor；
Wherein, the operating air velocity of indoor fan and the running frequency of compressor of the regulation air conditioner include：
The preset wind speed that operates in of the indoor fan is controlled, and every the second preset time, the compressor is current
The frequency of operation reduces the first predeterminated frequency, until reaching predetermined frequency；
The operating air velocity and the running frequency of compressor of the indoor fan of the regulation air conditioner, in addition to：
By the default wind speed of operating air velocity increase by second of the indoor fan, and every the 3rd preset time, by the pressure
The frequency that contracting machine is currently run reduces the second predeterminated frequency, until reaching predetermined frequency.
The embodiment of the present invention is when air conditioner enters refrigeration mode, according to acquired current indoor environment temperature and currently
Indoor environment humidity determines current indoor water capacity, if current indoor water capacity is less than or equal to target moisture content, judges institute
Whether the indoor heat exchanger coil temperature of detection is less than or equal to the dew-point temperature of present air.If so, then adjusting the air-conditioning
The operating air velocity of the indoor fan of device and the running frequency of compressor.So that passing through current indoor water capacity and target moisture content
Compare, judge whether air conditioner needs to be dehumidified, so as to adjust the operating air velocity and compressor of the indoor fan of air conditioner
Running frequency, realizes air conditioner in process of refrigerastion, maintains indoor environment humidity in target humidity.In addition, air conditioner is not required to
Increase the parts such as humidification apparatus, reduce the manufacturing cost of air conditioner.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the refrigeration control method first embodiment of air conditioner of the present invention；
Fig. 2 is the schematic flow sheet of the refrigeration control method second embodiment of air conditioner of the present invention；
Fig. 3 is the high-level schematic functional block diagram of the refrigeration control device first embodiment of air conditioner of the present invention；
Fig. 4 is the high-level schematic functional block diagram of the refrigeration control device second embodiment of air conditioner of the present invention；
Fig. 5 is a kind of structural representation for the air conditioner for realizing refrigeration control of the present invention.
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.
As shown in figure 1, showing a kind of refrigeration control method first embodiment of air conditioner of the invention.The sky of the embodiment
The refrigeration control method of device is adjusted to comprise the following steps：
Step S10, when air conditioner enters refrigeration mode, obtain current indoor environment temperature and current indoor environmental wet
Degree；
Air conditioner electrifying startup, during into refrigeration mode, user can be pressed by preset on remote control, or air conditioner
Key, touch-screen etc. are set to target temperature, if user's not sets target temperature, and air conditioner will be according to the temperature of acquiescence
Refrigerating operaton is carried out, the temperature of the acquiescence can be the temperature before the power-off of air conditioner last time.Meanwhile, air conditioner can be according to
Wind speed operation or press that user can be set by button preset on air conditioner, touch-screen, or remote control etc.
The wind speed operation given tacit consent to during according to air conditioner refrigerating operaton, the wind speed of the acquiescence can be to form proportional relation with indoor environment temperature,
That is the wind speed of the higher acquiescence of indoor environment temperature is bigger, conversely, the wind speed of the lower acquiescence of indoor environment temperature is smaller.
Target humidity can pass through default on remote control or air conditioner for user according to the demand of oneself in the present embodiment
The modes such as button, touch-screen, virtual key are configured, to reach the comfortableness demand of different user.If user does not set mesh
Humidity is marked, in order to which the humidity for preferably making indoor environment maintains comfortable humidity, the comfortableness that user uses air conditioner is improved,
Then target humidity now will can be obtained and current for preset comfort humidity corresponding with current indoor environment temperature, i.e. air conditioner
The corresponding preset comfort humidity of indoor environment temperature, and it regard the preset comfort humidity as target humidity.
In the present embodiment, current indoor environment temperature T1 and preset comfort humidity Φ s mapping relations will be pre-set, such as
Shown in table 1：
The mapping relations of the current indoor environment temperature of table 1. and preset comfort humidity
As shown in Table 1, current indoor environment temperature T1 is divided into 9 temperature ranges, each temperature range correspondence in advance
Different preset comfort humidity Φ s, as current indoor environment temperature T1 is raised, preset comfort humidity Φ s are gradually reduced.Currently
When indoor environment temperature T1 is less than 13 DEG C, preset comfort humidity Φ s are 70%；Current indoor environment temperature T1 is more than or equal to 27
DEG C when, preset comfort humidity Φ s be 30%.For example, when the current indoor environment temperature T1 obtained is 16 DEG C, positioned at 15 DEG C≤T1
The temperature range that 17 DEG C of ＜, then obtain corresponding preset comfort humidity Φ s for 60%, control air conditioner operate in 60% it is wet
Degree.It is understood that the value of each parameter in above-mentioned table 1 can be set as the case may be and flexibly, this hair is not limited
It is bright.
It should be noted that the data of preset comfort humidity can be led to according to obtaining after current indoor environment temperature T1 in table 1
Calculation formula between excessive preceding indoor environment temperature T1 and preset comfort humidity Φ s：Φ s=a × T1+b, calculating is preset
Comfort humidity Φ s, wherein, a, b are constant coefficient, for example, Φ s=1-0.025 × T1.
In the present embodiment, air conditioner includes the temperature sensor and humidity sensor being installed on indoor set, passes through temperature
Sensor detects current indoor environment temperature, and detects current indoor ambient humidity by humidity sensor.Certainly, current indoor
Environment temperature can also be detected that current indoor ambient humidity can also pass through room by temperature collect module preset on indoor set
Preset humidity collection module is detected on interior machine.
Step S20, current indoor is obtained according to the current indoor environment temperature and the current indoor ambient humidity contained
Moisture；
Current indoor water capacity can pass through according to the mapping relations of current indoor environment temperature and current indoor ambient humidity
Table look-up acquisition, in the present embodiment, current indoor environment temperature, current indoor ambient humidity and current indoor will be pre-set containing wet
Mapping relations between amount, as shown in table 2.Wherein, T1, T2, T3 ... Tn represent the different temperatures value of current indoor environment temperature,
Φ 1, Φ 2, Φ 3... Φ n represent the DIFFERENT WET angle value of current indoor ambient humidity, and d11, d12, d13 ... dnn represent to work as cup
The different moisture content values of interior water capacity, it is to be understood that n value and the value of parameters can be as the case may be
And flexibly set, do not limit the present invention.
Mapping relations between the current indoor environment temperature of table 2., current indoor ambient humidity and current indoor water capacity
As shown in Table 2, it is assumed that the preceding indoor environment temperature detected is T1, the current indoor ambient humidity detected is Φ
3, then corresponding current indoor water capacity can obtain for d31 by inquiry table 2.Therefore, by current indoor environment temperature and work as
Preceding indoor environment humidity can determine that current indoor water capacity.
Step S30, when the current indoor water capacity is less than or equal to target moisture content, detect the room of the air conditioner
Interior heat exchanger coils temperature；
It is above-mentioned obtain current indoor water capacity after, current indoor water capacity and target moisture content are compared.The mesh
Mark water capacity is water capacity corresponding with target temperature and target humidity, and above-mentioned table 2 is inquired about according to target temperature and target humidity
It would know that target moisture content.The target humidity is the corresponding indoor environment humidity of target temperature.According to current indoor water capacity with
Magnitude relationship between target moisture content judges that air conditioner is to need to carry out refrigerated dehumidification to need for being freezed and do not dehumidify, with
Prevent indoor environment humidity too low or too high.In the present embodiment, air conditioner also includes indoor heat exchanger coil temperature and detects mould
Block, if current indoor water capacity is less than or equal to target moisture content, is detected by indoor heat exchanger coil temperature detection module
The indoor heat exchanger coil temperature of air conditioner.
Step S40, judge the indoor heat exchanger coil temperature whether be less than or equal to present air dew-point temperature；If
It is then to perform step S50；If it is not, then performing above-mentioned steps S10；
It is above-mentioned to obtain after indoor heat exchanger coil temperature, by the dew-point temperature of indoor heat exchanger coil temperature and present air
It is compared, the dew-point temperature of the present air can pass through acquisition of tabling look-up.In the present embodiment, current indoor environment will be pre-set
Mapping relations between the dew-point temperature of temperature, current indoor ambient humidity and present air, as shown in table 3.Wherein, T1, T2,
T3 ... Tn represent the different temperatures value of current indoor environment temperature, and Φ 1, Φ 2, Φ 3... Φ n represent current indoor ambient humidity
DIFFERENT WET angle value, TL11、TL12、TL13…TLnnRepresent the different dew point temperature values of the dew-point temperature of present air, it is possible to understand that
, n value and the value of parameters can as the case may be and flexibly set, not limit of the invention.
Mapping between the dew-point temperature of the current indoor environment temperature of table 3., current indoor ambient humidity and present air is closed
System
As shown in Table 3, it is assumed that the preceding indoor environment temperature detected is T3, the current indoor ambient humidity detected is Φ
1, then the dew-point temperature that can obtain corresponding present air by inquiry table 3 is TL13.Therefore, current indoor environment temperature is passed through
And current indoor ambient humidity can determine that the dew-point temperature of present air.
Step S50, the operating air velocity of the indoor fan of the regulation air conditioner and the running frequency of compressor, and perform
State step S10.
If indoor heat exchanger coil temperature is less than or equal to the dew-point temperature of present air, air conditioner is in refrigerated dehumidification shape
State, now because current indoor water capacity is less than or equal to target moisture content, and in order to control air conditioner without dehumidifying, makes room
Interior ambient humidity reaches target humidity, then adjusts the operating air velocity and the running frequency of compressor of the indoor fan of air conditioner.
Further, in one embodiment, the preset wind speed that operates in of the indoor fan is controlled, and it is default every second
Time, the frequency that the compressor is currently run reduces the first predeterminated frequency, until reaching predetermined frequency.
In order to control air conditioner without dehumidifying, control indoor fan operates in preset wind speed.If above-mentioned user has set
Determine the wind speed of indoor fan operation, then the preset wind speed is the wind speed that user sets；If user does not set indoor fan operation
Wind speed, then the preset wind speed is the wind speed of acquiescence, and acquiescence wind speed now can be 100%.Meanwhile, every the second preset time,
The frequency that the compressor of air conditioner is currently run reduces the first predeterminated frequency, until reaching predetermined frequency, is changed with improving interior
Hot device coil temperature.Second preset time be in order that compressor can stable operation, may be configured as 5 minutes, this is first pre-
If frequency may be configured as 0.8 times of the frequency currently run, the predetermined frequency may be configured as minimum frequency values, such as 10Hz,
It is understood that the second preset time, the first predeterminated frequency and predetermined frequency can also be set as the case may be and flexibly, and
Do not limit the present invention.So as to prevent air conditioner to be constantly in refrigerated dehumidification state, cause air conditioner indoor in process of refrigerastion
Environment is relatively dry.
After the running frequency of compressor reaches predetermined frequency, continue to obtain current indoor environment temperature and current indoor ring
Border humidity, circulation performs above-mentioned steps S10 to step S50, so that indoor environment humidity reaches target humidity, until air conditioner breaks
Electricity is stopped.
Further, in another embodiment, by the default wind speed of operating air velocity increase by second of the indoor fan, and often
Every the 3rd preset time, the frequency that the compressor is currently run reduces the second predeterminated frequency, until reaching predetermined frequency.
In order to control air conditioner without dehumidifying, then by the default wind speed of operating air velocity increase by second of indoor fan.This
Two default wind speed may be configured as 10%, can also set as the case may be and flexibly.Meanwhile, every the 3rd preset time, by sky
The frequency for adjusting the compressor of device currently to run reduces the second predeterminated frequency, until predetermined frequency is reached, to improve indoor heat exchanger
Coil temperature.3rd preset time be in order that compressor can stable operation, may be configured as 5 minutes, the second default frequency
Rate may be configured as 0.8 times of the frequency currently run, and the predetermined frequency may be configured as minimum frequency values, such as 10Hz, can be with
Understand, the 3rd preset time, the second predeterminated frequency and predetermined frequency also can as the case may be and flexibly set, do not limit
The fixed present invention.So as to prevent air conditioner to be constantly in refrigerated dehumidification state, air conditioner indoor environment in process of refrigerastion is caused
It is relatively dry.
After the running frequency of compressor reaches predetermined frequency, continue to obtain current indoor environment temperature and current indoor ring
Border humidity, circulation performs above-mentioned steps S10 to step S50, so that indoor environment humidity reaches target humidity, until air conditioner breaks
Electricity is stopped.
If indoor heat exchanger coil temperature is more than the dew-point temperature of present air, now air conditioner is in the shape that do not dehumidify that freezes
State, then need not adjust the operating air velocity of indoor fan and the running frequency of compressor, continue directly to obtain current indoor environment
Temperature and current indoor ambient humidity, circulation perform above-mentioned steps S10 to step S50, so that indoor environment humidity reaches target
Humidity, until air conditioner power-off is stopped.
The embodiment of the present invention according to the obtained current indoor environment temperature of detection and is worked as when air conditioner enters refrigeration mode
Preceding indoor environment humidity determines current indoor water capacity.If current indoor water capacity is less than or equal to target moisture content, judge
Whether the indoor heat exchanger coil temperature detected is less than or equal to the dew-point temperature of present air.If so, then adjusting the sky
Adjust the operating air velocity and the running frequency of compressor of the indoor fan of device.So that air conditioner passes through current indoor water capacity and target
The comparison of water capacity, judges whether to need to be dehumidified, so as to adjust the operating air velocity and compressor of the indoor fan of air conditioner
Running frequency, realize air conditioner in process of refrigerastion, maintain indoor environment humidity in target humidity, improve user and use
The comfortableness of air conditioner.In addition, air conditioner need not increase the parts such as humidification apparatus, the manufacturing cost of air conditioner is reduced.
Further, as shown in Fig. 2 based on above-described embodiment, in the present embodiment, may include after above-mentioned steps S20 with
Lower step：
Step S60, judge current indoor water capacity whether be less than or equal to target moisture content；
Step S70, when the current indoor water capacity is more than target moisture content, detect the indoor heat exchange of the air conditioner
Device coil temperature；
Step S80, judge the indoor heat exchanger coil temperature whether be more than present air dew-point temperature；If so, then
Perform step S90；If it is not, then performing above-mentioned steps S10；
Step S90, the default wind speed of wind speed reduction by first for currently running the indoor fan, when maintenance first is default
Between, and perform above-mentioned steps S10.
It is above-mentioned obtain current indoor water capacity after, current indoor water capacity and target moisture content are compared, the mesh
Mark water capacity is above-mentioned target moisture content.If current indoor water capacity is more than target moisture content, pass through indoor heat exchanger disk
Pipe temperature detecting module detects the indoor heat exchanger coil temperature of air conditioner, and by indoor heat exchanger coil temperature and present air
Dew-point temperature be compared.The dew-point temperature of present air can be obtained by above-mentioned inquiry table 3.
If indoor heat exchanger coil temperature is more than the dew-point temperature of present air, air conditioner is in refrigeration not dehumidified state,
Now because current indoor water capacity is more than target moisture content, and in order to control air conditioner to be dehumidified, make indoor environment humidity
Target humidity is reached, then the default wind speed of wind speed reduction by first currently run the indoor fan of air conditioner.The first default wind
Speed may be configured as 10%, can also set as the case may be and flexibly.Do not dehumidified so as to prevent air conditioner to be constantly in refrigeration
State, causes air conditioner indoor environment in process of refrigerastion more vexed wet.
Indoor fan is run according to the wind speed after regulation, by the first preset time, so that indoor fan operation reaches surely
After fixed, continue to obtain current indoor environment temperature and current indoor ambient humidity, circulation performs above-mentioned steps S10 to step S90,
So that indoor environment humidity reaches target humidity, until air conditioner power-off is stopped.First preset time may be configured as 5 points
Clock, can also be set as the case may be and flexibly.
If indoor heat exchanger coil temperature is less than or equal to the dew-point temperature of present air, now air conditioner is removed in refrigeration
Wet condition, then need not adjust the operating air velocity of indoor fan, continue directly to obtain current indoor environment temperature and current indoor
Ambient humidity, circulation performs above-mentioned steps S10 to step S90, so that indoor environment humidity reaches target humidity, until air conditioner
Power-off is stopped.
Accordingly, as shown in figure 3, proposing a kind of refrigeration control device first embodiment of air conditioner of the invention.The implementation
The refrigeration control device of the air conditioner of example includes：
Acquisition module 100, for when air conditioner enters refrigeration mode, obtaining current indoor environment temperature and current indoor
Ambient humidity；
Air conditioner electrifying startup, during into refrigeration mode, user can be pressed by preset on remote control, or air conditioner
Key, touch-screen etc. are set to target temperature, if user's not sets target temperature, and air conditioner will be according to the temperature of acquiescence
Refrigerating operaton is carried out, the temperature of the acquiescence can be the temperature before the power-off of air conditioner last time.Meanwhile, air conditioner can be according to
Wind speed operation or press that user can be set by button preset on air conditioner, touch-screen, or remote control etc.
The wind speed operation given tacit consent to during according to air conditioner refrigerating operaton, the wind speed of the acquiescence can be to form proportional relation with indoor environment temperature,
That is the wind speed of the higher acquiescence of indoor environment temperature is bigger, conversely, the wind speed of the lower acquiescence of indoor environment temperature is smaller.
Target humidity can pass through default on remote control or air conditioner for user according to the demand of oneself in the present embodiment
The modes such as button, touch-screen, virtual key are configured, to reach the comfortableness demand of different user.If user does not set mesh
Humidity is marked, in order to which the humidity for preferably making indoor environment maintains comfortable humidity, the comfortableness that user uses air conditioner is improved,
Then target humidity now will can be obtained and current for preset comfort humidity corresponding with current indoor environment temperature, i.e. air conditioner
The corresponding preset comfort humidity of indoor environment temperature, and it regard the preset comfort humidity as target humidity.
In the present embodiment, current indoor environment temperature T1 and preset comfort humidity Φ s mapping relations will be pre-set, such as
Shown in table 4：
The mapping relations of the current indoor environment temperature of table 4. and preset comfort humidity
As shown in Table 4, current indoor environment temperature T1 is divided into 9 temperature ranges, each temperature range correspondence in advance
Different preset comfort humidity Φ s, as current indoor environment temperature T1 is raised, preset comfort humidity Φ s are gradually reduced.Currently
When indoor environment temperature T1 is less than 13 DEG C, preset comfort humidity Φ s are 70%；Current indoor environment temperature T1 is more than or equal to 27
DEG C when, preset comfort humidity Φ s be 30%.For example, when the current indoor environment temperature T1 obtained is 16 DEG C, positioned at 15 DEG C≤T1
The temperature range that 17 DEG C of ＜, then obtain corresponding preset comfort humidity Φ s for 60%, control air conditioner operate in 60% it is wet
Degree.It is understood that the value of each parameter in above-mentioned table 4 can be set as the case may be and flexibly, this hair is not limited
It is bright.
It should be noted that the data of preset comfort humidity can be led to according to obtaining after current indoor environment temperature T1 in table 4
Calculation formula between excessive preceding indoor environment temperature T1 and preset comfort humidity Φ s：Φ s=a × T1+b, calculating is preset
Comfort humidity Φ s, wherein, a, b are constant coefficient, for example, Φ s=1-0.025 × T1.
In the present embodiment, air conditioner includes the temperature sensor and humidity sensor being installed on indoor set, calls acquisition
Module 100 detects current indoor environment temperature by temperature sensor, and detects current indoor environmental wet by humidity sensor
Degree.Certainly, current indoor environment temperature can also be detected by temperature collect module preset on indoor set, current indoor ring
Border humidity can also be detected by humidity collection module preset on indoor set.
Water capacity acquisition module 200, for according to the current indoor environment temperature and the current indoor ambient humidity
Obtain current indoor water capacity；
Current indoor water capacity can be by water capacity acquisition module 200 according to current indoor environment temperature and current indoor environment
The mapping relations of humidity in the present embodiment, will pre-set current indoor environment temperature, current indoor environment by acquisition of tabling look-up
Mapping relations between humidity and current indoor water capacity, as shown in table 5.Wherein, T1, T2, T3 ... Tn represent current indoor ring
The different temperatures value of border temperature, Φ 1, Φ 2, Φ 3... Φ n represent the DIFFERENT WET angle value of current indoor ambient humidity, d11, d12,
D13 ... dnn represent the different moisture content values of current indoor water capacity, it is to be understood that n value and parameters
Value can be set as the case may be and flexibly, not limit the present invention.
Mapping relations between the current indoor environment temperature of table 5., current indoor ambient humidity and current indoor water capacity
As shown in Table 5, it is assumed that the preceding indoor environment temperature detected is T1, the current indoor ambient humidity detected is Φ
3, then corresponding current indoor water capacity can obtain for d31 by inquiry table 5.Therefore, by current indoor environment temperature and work as
Preceding indoor environment humidity can determine that current indoor water capacity.
First detection module 300, for when the current indoor water capacity is less than or equal to target moisture content, detecting institute
State the indoor heat exchanger coil temperature of air conditioner；
It is above-mentioned obtain current indoor water capacity after, current indoor water capacity and target moisture content are compared.The mesh
Mark water capacity is water capacity corresponding with target temperature and target humidity, and above-mentioned table 5 is inquired about according to target temperature and target humidity
It would know that target moisture content.The target humidity is the corresponding indoor environment humidity of target temperature.According to current indoor water capacity with
Magnitude relationship between target moisture content judges that air conditioner is to need to carry out refrigerated dehumidification to need for being freezed and do not dehumidify, with
Prevent indoor environment humidity too low or too high.In the present embodiment, air conditioner also includes indoor heat exchanger coil temperature and detects mould
Block, if current indoor water capacity is less than or equal to target moisture content, first detection module 300 passes through indoor heat exchanger coil pipe temperature
Spend the indoor heat exchanger coil temperature that detection module detects air conditioner.
First judge module 400, for judging whether the indoor heat exchanger coil temperature is less than or equal to present air
Dew-point temperature；
It is above-mentioned to obtain after indoor heat exchanger coil temperature, the first judge module 400 is called by indoor heat exchanger coil temperature
It is compared with the dew-point temperature of present air, the dew-point temperature of the present air can pass through acquisition of tabling look-up., will in the present embodiment
The mapping relations between the dew-point temperature of current indoor environment temperature, current indoor ambient humidity and present air are pre-set,
As shown in table 6.Wherein, T1, T2, T3 ... Tn represent the different temperatures value of current indoor environment temperature, Φ 1, Φ 2, Φ 3... Φ n
Represent the DIFFERENT WET angle value of current indoor ambient humidity, TL11、TL12、TL13…TLnnRepresent the difference of the dew-point temperature of present air
Dew point temperature value, it is to be understood that n value and the value of parameters can be set as the case may be and flexibly, and
Do not limit the present invention.
Mapping between the dew-point temperature of the current indoor environment temperature of table 6., current indoor ambient humidity and present air is closed
System
As shown in Table 6, it is assumed that the preceding indoor environment temperature detected is T3, the current indoor ambient humidity detected is Φ
1, then the dew-point temperature that can obtain corresponding present air by inquiry table 6 is TL13.Therefore, current indoor environment temperature is passed through
And current indoor ambient humidity can determine that the dew-point temperature of present air.
First processing module 500, if being less than or equal to the dew point of present air for the indoor heat exchanger coil temperature
Temperature, then adjust the operating air velocity of the indoor fan of the air conditioner and the running frequency of compressor, and continued by acquisition module
Obtain current indoor environment temperature and current indoor ambient humidity；Otherwise, directly continued to obtain current indoor ring by acquisition module
Border temperature and current indoor ambient humidity.
If indoor heat exchanger coil temperature is less than or equal to the dew-point temperature of present air, air conditioner is in refrigerated dehumidification shape
State, now because current indoor water capacity is less than or equal to target moisture content, and in order to control air conditioner without dehumidifying, makes room
Interior ambient humidity reaches target humidity, then the operating air velocity and pressure of the indoor fan of air conditioner are adjusted by first processing module 500
The running frequency of contracting machine.
Further, in one embodiment, first processing module 500 is additionally operable to, and controls operating in for the indoor fan
Preset wind speed, and every the second preset time, the frequency that the compressor is currently run reduces the first predeterminated frequency, until reaching
To predetermined frequency.
In order to control air conditioner without dehumidifying, the control indoor fan of first processing module 500 operates in preset wind speed.
If above-mentioned user has set the wind speed of indoor fan operation, the preset wind speed is the wind speed that user sets；If user does not set
The wind speed of indoor fan operation, then the preset wind speed is the wind speed of acquiescence, and acquiescence wind speed now can be 100%.Meanwhile, first
Processing module 500 reduces the first predeterminated frequency every the second preset time, the frequency that the compressor of air conditioner is currently run, directly
To predetermined frequency is reached, to improve indoor heat exchanger coil temperature.Second preset time is in order that compressor can be stablized
Operation, may be configured as 5 minutes, first predeterminated frequency may be configured as 0.8 times of the frequency currently run, and the predetermined frequency can be set
It is set to minimum frequency values, such as 10Hz, it is to be understood that the second preset time, the first predeterminated frequency and predetermined frequency
It can as the case may be and flexibly set, not limit the present invention.So as to prevent air conditioner to be constantly in refrigerated dehumidification state,
Cause air conditioner indoor environment in process of refrigerastion relatively dry.
After the running frequency of compressor reaches predetermined frequency, continued to obtain current indoor environment temperature by acquisition module 100
Degree and current indoor ambient humidity, and call water capacity acquisition module 200, first detection module 300, the first judge module 400
And first processing module 500 performs corresponding control, so that indoor environment humidity reaches target humidity, until air conditioner power-off stops
Only work.
Further, in another embodiment, first processing module 500 is additionally operable to, by the operation wind of the indoor fan
The default wind speed of speed increase by second, and every the 3rd preset time, the frequency reduction by second that the compressor is currently run is preset
Frequency, until reaching predetermined frequency.
In order to control air conditioner without dehumidifying, then first processing module 500 is called to increase the operating air velocity of indoor fan
Plus the second and preset wind speed.The second default wind speed may be configured as 10%, can also set as the case may be and flexibly.Meanwhile, often
Every the 3rd preset time, the frequency that first processing module 500 currently runs the compressor of air conditioner reduces the second predeterminated frequency,
Until predetermined frequency is reached, to improve indoor heat exchanger coil temperature.3rd preset time is in order that compressor can be steady
Fixed operation, may be configured as 5 minutes, second predeterminated frequency may be configured as 0.8 times of the frequency currently run, and the predetermined frequency can
It is set to minimum frequency values, such as 10Hz, it is to be understood that the 3rd preset time, the second predeterminated frequency and predetermined frequency
Also it can as the case may be and flexibly set, not limit the present invention.So as to prevent air conditioner to be constantly in refrigerated dehumidification shape
State, causes air conditioner indoor environment in process of refrigerastion relatively dry.
After the running frequency of compressor reaches predetermined frequency, continued to obtain current indoor environment temperature by acquisition module 100
Degree and current indoor ambient humidity, and call water capacity acquisition module 200, first detection module 300, the first judge module 400
And first processing module 500 performs corresponding control, so that indoor environment humidity reaches target humidity, until air conditioner power-off stops
Only work.
If indoor heat exchanger coil temperature is more than the dew-point temperature of present air, now air conditioner is in the shape that do not dehumidify that freezes
State, then first processing module 500 need not adjust the operating air velocity of indoor fan and the running frequency of compressor, directly by obtaining
Module 100 continues to obtain current indoor environment temperature and current indoor ambient humidity, and calls water capacity acquisition module 200, the
One detection module 300, the first judge module 400 and first processing module 500 perform corresponding control, so that indoor environment humidity
Target humidity is reached, until air conditioner power-off is stopped.
The embodiment of the present invention according to the obtained current indoor environment temperature of detection and is worked as when air conditioner enters refrigeration mode
Preceding indoor environment humidity determines current indoor water capacity.If current indoor water capacity is less than or equal to target moisture content, judge
Whether the indoor heat exchanger coil temperature detected is less than or equal to the dew-point temperature of present air.If so, then adjusting the sky
Adjust the operating air velocity and the running frequency of compressor of the indoor fan of device.So that air conditioner passes through current indoor water capacity and target
The comparison of water capacity, judges whether to need to be dehumidified, so as to adjust the operating air velocity and compressor of the indoor fan of air conditioner
Running frequency, realize air conditioner in process of refrigerastion, maintain indoor environment humidity in target humidity, improve user and use
The comfortableness of air conditioner.In addition, air conditioner need not increase the parts such as humidification apparatus, the manufacturing cost of air conditioner is reduced.
Further, as shown in figure 4, the refrigeration control device for being based on air conditioner in above-described embodiment, the embodiment is also wrapped
Include：
Second detection module 600, for when the current indoor water capacity is more than target moisture content, detecting the air-conditioning
The indoor heat exchanger coil temperature of device；
Second judge module 700, for judging whether the indoor heat exchanger coil temperature is more than the dew point of present air
Temperature；
Second processing module 800, if being more than the dew-point temperature of present air for the indoor heat exchanger coil temperature,
The default wind speed of wind speed reduction by first that the indoor fan is currently run, maintains the first preset time, and by acquisition module after
It is continuous to obtain current indoor environment temperature and current indoor ambient humidity；Otherwise, directly continued to obtain current indoor by acquisition module
Environment temperature and current indoor ambient humidity.
It is above-mentioned obtain current indoor water capacity after, current indoor water capacity and target moisture content are compared, the mesh
Mark water capacity consistent with target moisture content mentioned above.If current indoor water capacity is more than target moisture content, by the second inspection
The indoor heat exchanger coil temperature that module 600 detects air conditioner by indoor heat exchanger coil temperature detection module is surveyed, and by the
The dew-point temperature of indoor heat exchanger coil temperature and present air is compared by two judge modules 700.The dew point of present air
Temperature can be obtained by above-mentioned inquiry table 3.
If indoor heat exchanger coil temperature is more than the dew-point temperature of present air, air conditioner is in refrigeration not dehumidified state,
Now because current indoor water capacity is more than target moisture content, and in order to control air conditioner to be dehumidified, make indoor environment humidity
Target humidity is reached, then the default wind of wind speed reduction by first that Second processing module 800 currently runs the indoor fan of air conditioner
Speed.The first default wind speed may be configured as 10%, can also set as the case may be and flexibly.So as to prevent air conditioner always
In not dehumidified state of freezing, cause air conditioner indoor environment in process of refrigerastion more vexed wet.
Indoor fan is run according to the wind speed after regulation, by the first preset time, so that indoor fan operation reaches surely
After fixed, continued to obtain current indoor environment temperature and current indoor ambient humidity by acquisition module 100, and call water capacity to obtain
Module 200, the second detection module 600, the second judge module 700 and Second processing module 800 perform corresponding control, so that room
Interior ambient humidity reaches target humidity, until air conditioner power-off is stopped.First preset time may be configured as 5 minutes,
It can set as the case may be and flexibly.
If indoor heat exchanger coil temperature is less than or equal to the dew-point temperature of present air, now air conditioner is removed in refrigeration
Wet condition, then Second processing module 800 need not adjust the operating air velocity of indoor fan, directly continue to obtain by acquisition module 100
Take current indoor environment temperature and current indoor ambient humidity, and call water capacity acquisition module 200, the second detection module 600,
Second judge module 700 and Second processing module 800 perform corresponding control, so that indoor environment humidity reaches target humidity,
Until air conditioner power-off is stopped.
Accordingly, as shown in figure 5, showing a kind of embodiment of air conditioner one for realizing refrigeration control of the present invention.The air conditioner
It may include indoor set 1 and outdoor unit 2, indoor heat exchanger and indoor fan can be provided with the indoor set 1；It can be provided with outdoor unit 2
Compressor assembly, four-way valve, outdoor heat exchanger and throttle part etc., wherein compressor assembly, four-way valve, indoor heat exchange
Connected between device, outdoor heat exchanger, throttle part by pipeline, form refrigerating/heating circulation loop.The indoor set 1 is provided with
Temperature sensor 101, humidity sensor 102 and indoor heat exchanger coil temperature detection module 103, are respectively used to collection and work as cup
Interior environment temperature T1, current indoor ambient humidity Φ 1 and indoor heat exchanger coil temperature T2.In addition, the air conditioner also includes one
Refrigeration control device 3, the refrigeration control device 3 is used for according to current indoor environment temperature T1 and current indoor ambient humidity Φ 1
Current indoor water capacity d1 is obtained, and obtains target moisture content ds.Then air conditioner is determined according to above-mentioned refrigeration control method
Operational mode, and export corresponding control parameter under the operational mode, with the operating air velocity of the indoor fan that adjusts air conditioner and
The running frequency of compressor, reaches that air conditioner maintains indoor environment humidity in the purpose of target humidity during refrigeration.Should
The structure and working principle of refrigeration control device can refer to described in preceding embodiment.
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
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 (5)
1. a kind of refrigeration control method of air conditioner, it is characterised in that the refrigeration control method of the air conditioner includes following step
Suddenly：
S10, when air conditioner enters refrigeration mode, obtain current indoor environment temperature and current indoor ambient humidity；
S20, current indoor water capacity obtained according to the current indoor environment temperature and the current indoor ambient humidity；
S30, when the current indoor water capacity is less than or equal to target moisture content, detect the indoor heat exchanger of the air conditioner
Coil temperature；
S40, judge the indoor heat exchanger coil temperature whether be less than or equal to present air dew-point temperature；
S50, if so, then adjust the operating air velocity of the indoor fan of the air conditioner and the running frequency of compressor, and be transferred to step
Rapid S10；
S60, if it is not, being then transferred to step S10；
Wherein, the step S50 includes：
The preset wind speed that operates in of the indoor fan is controlled, and every the second preset time, the compressor is currently run
Frequency reduce the first predeterminated frequency, until reach predetermined frequency, and be transferred to step S10；
The step S50 also includes：
By the default wind speed of operating air velocity increase by second of the indoor fan, and every the 3rd preset time, by the compressor
The frequency currently run reduces the second predeterminated frequency, until reaching predetermined frequency, and is transferred to step S10.
2. the refrigeration control method of air conditioner as claimed in claim 1, it is characterised in that include after the step S20：
When the current indoor water capacity is more than target moisture content, the indoor heat exchanger coil temperature of the air conditioner is detected；
Judge whether the indoor heat exchanger coil temperature is more than the dew-point temperature of present air；
If so, the default wind speed of wind speed reduction by first for then currently running the indoor fan, maintains the first preset time, and turn
Enter step S10；
If it is not, being then transferred to step S10.
3. a kind of refrigeration control device of air conditioner, it is characterised in that the refrigeration control device of the air conditioner includes：
Acquisition module, for obtaining current indoor environment temperature and current indoor environmental wet when air conditioner enters refrigeration mode
Degree；
Water capacity acquisition module, for obtaining current according to the current indoor environment temperature and the current indoor ambient humidity
Indoor water capacity；
First detection module, for when the current indoor water capacity is less than or equal to target moisture content, detecting the air-conditioning
The indoor heat exchanger coil temperature of device；
First judge module, for judging whether the indoor heat exchanger coil temperature is less than or equal to the dew point temperature of present air
Degree；
First processing module, if being less than or equal to the dew-point temperature of present air for the indoor heat exchanger coil temperature,
The operating air velocity of the indoor fan of the air conditioner and the running frequency of compressor are adjusted, and acquisition is continued currently by acquisition module
Indoor environment temperature and current indoor ambient humidity；Otherwise, directly by acquisition module continue obtain current indoor environment temperature and
Current indoor ambient humidity；
The first processing module is additionally operable to, and controls the preset wind speed that operates in of the indoor fan, and when second is default
Between, the frequency that the compressor is currently run reduces the first predeterminated frequency, until reach predetermined frequency, and by acquisition module after
It is continuous to obtain current indoor environment temperature and current indoor ambient humidity；
The first processing module is additionally operable to, by the default wind speed of the operating air velocity of indoor fan increase by second, and every the
Three preset times, the frequency that the compressor is currently run reduces the second predeterminated frequency, until predetermined frequency is reached, and by obtaining
Modulus block continues to obtain current indoor environment temperature and current indoor ambient humidity.
4. the refrigeration control device of air conditioner as claimed in claim 3, it is characterised in that the refrigeration control dress of the air conditioner
Putting also includes：
Second detection module, for when the current indoor water capacity is more than target moisture content, detecting the room of the air conditioner
Interior heat exchanger coils temperature；
Second judge module, for judging whether the indoor heat exchanger coil temperature is more than the dew-point temperature of present air；
Second processing module, will be described if being more than the dew-point temperature of present air for the indoor heat exchanger coil temperature
The default wind speed of wind speed reduction by first that indoor fan is currently run, maintains the first preset time, and continue acquisition by acquisition module
Current indoor environment temperature and current indoor ambient humidity；Otherwise, directly continued to obtain current indoor environment temperature by acquisition module
Degree and current indoor ambient humidity.
5. a kind of air conditioner, it is characterised in that the indoor set of the air conditioner is provided with temperature sensor, humidity sensor and room
Interior heat exchanger coils temperature detecting module, is respectively used to collection current indoor environment temperature, current indoor ambient humidity and interior
Heat exchanger coils temperature, the air conditioner also includes the refrigeration control device of the air conditioner as described in claim any one of 3-4, institute
Stating refrigeration control device is used to work as cup according to the current indoor environment temperature and current indoor ambient humidity acquisition
Interior water capacity, and it is less than or equal to target moisture content, and indoor heat exchanger coil temperature when meeting the current indoor water capacity
Less than or equal to present air dew-point temperature when, adjust the operating air velocity and the fortune of compressor of the indoor fan of the air conditioner
Line frequency；
Wherein, the operating air velocity of indoor fan and the running frequency of compressor of the regulation air conditioner include：
The preset wind speed that operates in of the indoor fan is controlled, and every the second preset time, the compressor is currently run
Frequency reduce the first predeterminated frequency, until reach predetermined frequency；
The operating air velocity and the running frequency of compressor of the indoor fan of the regulation air conditioner, in addition to：
By the default wind speed of operating air velocity increase by second of the indoor fan, and every the 3rd preset time, by the compressor
The frequency currently run reduces the second predeterminated frequency, until reaching predetermined frequency.
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| CN104949270A (en) | 2015-09-30 |
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