CN105546770B - The control method for frequency and air-conditioning of air-conditioning - Google Patents
The control method for frequency and air-conditioning of air-conditioning Download PDFInfo
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- CN105546770B CN105546770B CN201610108257.8A CN201610108257A CN105546770B CN 105546770 B CN105546770 B CN 105546770B CN 201610108257 A CN201610108257 A CN 201610108257A CN 105546770 B CN105546770 B CN 105546770B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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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
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of control method for frequency of air-conditioning, include the following steps:The compressor of air-conditioning is opened and is run in the first preset time, and indoor environment humidity RH1 is obtained;After the second preset time of compressor operating of air-conditioning, indoor environment humidity RH2 is obtained;According to the psychrometric difference of humidity RH1 and humidity RH1 and humidity RH2, the frequency of compressor is controlled.The invention also discloses a kind of air-conditionings.The present invention according to humidity can Accurate Prediction whether will produce condensation, and run in time by controlling air-conditioning limit frequency, to prevent the generation of condensation.
Description
Technical field
The present invention relates to field of air conditioning more particularly to air-conditionings and its control method for frequency.
Background technology
Air-conditioning receives user's pro-gaze due to having the function of humidity regulation.But air-conditioning, in refrigeration, air-conditioning is indoor
Vapor becomes water, and indoor humidity is made to reduce, if continuous wetly cycle, indoor humidity can not reduce in air, and it is empty
When frequency operation is turned up, and vapor is constantly become water, thus will produce condensation water, guttation will be generated when serious
The phenomenon that.
Although existing air-conditioning has the function of humid control, which is also only according to current humidity and use
The target humidity of family setting, carries out dehumidifying or humidification process, and there is no handled for condensation water phenomenon.
Invention content
The main purpose of the present invention is to provide a kind of control method for frequency and air-conditioning for adjusting air-conditioning, it is intended to which Accurate Prediction is empty
Whether tune will produce condensation, and prevent the generation of condensation in time.
To achieve the above object, the control method for frequency of a kind of air-conditioning provided by the invention, includes the following steps:
The compressor of air-conditioning is opened and is run in the first preset time, and indoor environment humidity RH1 is obtained;
After the second preset time of compressor operating of air-conditioning, indoor environment humidity RH2 is obtained;
According to the psychrometric difference of humidity RH1 and humidity RH1 and humidity RH2, the frequency of compressor is controlled.
Preferably, the psychrometric difference according to humidity RH1 and humidity RH1 and humidity RH2, controls the frequency of compressor
The step of include:
Judge whether humidity RH1 is greater than or equal to the first default humidity threshold;
When humidity RH1 is greater than or equal to the first humidity threshold, judge whether the psychrometric difference of humidity RH1 and humidity RH2 are small
In or equal to the second default humidity threshold;
When the psychrometric difference of humidity RH1 and humidity RH2 are less than or equal to the second default humidity threshold, by the compressor of air-conditioning
Maximum frequency of operation be set as preset running frequency.
Preferably, the psychrometric difference according to humidity RH1 and humidity RH1 and humidity RH2, controls the frequency of compressor
The step of include:
Judge whether humidity RH1 is less than the first default humidity threshold;
When humidity RH1 is less than the first default humidity threshold, judge whether the psychrometric difference of humidity RH2 and humidity RH1 are more than
Whether the 4th default humidity threshold and humidity RH2 are more than the 5th default humidity threshold;
When the psychrometric difference of humidity RH2 and humidity RH1 are more than or equal to the 4th default humidity threshold and humidity RH2 is more than the 5th
When default humidity threshold, the maximum frequency of operation of the compressor of air-conditioning is set as preset running frequency.
Preferably, after the step of maximum frequency of operation of the compressor by air-conditioning is set as preset running frequency also
Including:
Obtain indoor environment humidity RH3;
When the psychrometric difference of humidity RH3 and humidity RH1, which is greater than or equal to third, presets humidity threshold, restore the compression of air-conditioning
The normal operation of machine.
Preferably, the control method for frequency of the air-conditioning further includes:
When air-conditioning booting and compressor unlatching, indoor environment humidity and air-conditioner operation time are reset.
In addition, to achieve the above object, the present invention also provides a kind of air-conditioning, including compressor, evaporator, condenser,
Wind turbine and compressor, evaporator, condenser concatenate the coolant loop to be formed, and the air-conditioning further includes humidity sensor and control
Device processed;Wherein,
The humidity sensor is used to open and be run in the first preset time in the compressor of air-conditioning, obtains indoor environment
Humidity RH1;After the second preset time of compressor operating of air-conditioning, indoor environment humidity RH2 is obtained;
The controller is used for the psychrometric difference according to humidity RH1 and humidity RH1 and humidity RH2, controls the frequency of compressor
Rate.
Preferably, the controller is used for:Judge whether humidity RH1 is greater than or equal to the first default humidity threshold;When wet
When spending RH more than or equal to the first humidity threshold, it is pre- to judge whether the psychrometric difference of humidity RH1 and humidity RH2 is less than or equal to second
If humidity threshold;When the psychrometric difference of humidity RH1 and humidity RH2 are less than or equal to the second default humidity threshold, by the pressure of air-conditioning
The maximum frequency of operation of contracting machine is set as preset running frequency.
Preferably, the controller is additionally operable to:Judge whether humidity RH1 is less than the first default humidity threshold;As humidity RH1
When less than the first default humidity threshold, judge humidity RH2 and humidity RH1 psychrometric difference whether be more than the 4th default humidity threshold and
Whether humidity RH2 is more than the 5th default humidity threshold;It is preset when the psychrometric difference of humidity RH2 and humidity RH1 are greater than or equal to the 4th
When humidity threshold and humidity RH2 are more than five default humidity thresholds, the maximum frequency of operation of the compressor of air-conditioning is set as default
Running frequency.
Preferably, the humidity sensor is additionally operable to:The maximum frequency of operation of the compressor of air-conditioning is set as preset fortune
After line frequency, indoor environment humidity RH3 is obtained;
The controller is additionally operable to:Humidity threshold is preset when the psychrometric difference of humidity RH3 and humidity RH1 is greater than or equal to third
When, restore the normal operation of the compressor of air-conditioning.
Preferably, the controller is additionally operable to:When air-conditioning booting and compressor unlatching, by indoor environment humidity and air-conditioning
Run time is reset.
The indoor humidity that the embodiment of the present invention is detected according to the humidity sensor in air-conditioning system judges whether that control is empty
Limit frequency is adjusted to run.When being run due to air conditioner refrigerating, have direct influence of the indoor humidity for condensation water, therefore basis
Humidity can Accurate Prediction whether will produce condensation, and run in time by controlling air-conditioning limit frequency, to prevent the generation of condensation.
Description of the drawings
Fig. 1 is the structural schematic diagram of one embodiment of air-conditioning of the present invention;
Fig. 2 is the flow diagram of the control method for frequency first embodiment of air-conditioning of the present invention;
Fig. 3 is the psychrometric difference control according to humidity RH1, humidity RH1 and humidity RH2 in the control method for frequency of air-conditioning of the present invention
The refinement flow diagram of one embodiment of the frequency of compressor processed;
Fig. 4 is the psychrometric difference control according to humidity RH1, humidity RH1 and humidity RH2 in the control method for frequency of air-conditioning of the present invention
The refinement flow diagram of one embodiment of the frequency of compressor processed;
Fig. 5 is the flow diagram of the control method for frequency second embodiment of air-conditioning of the present invention;
Fig. 6 is the specific control process example figure of the control method for frequency of air-conditioning of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific implementation mode
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 proposes a kind of control method for frequency of air-conditioning, the room detected according to the humidity sensor in air-conditioning system
Interior humidity judges whether that controlling air-conditioning limit frequency runs.When being run due to air conditioner refrigerating, indoor humidity has for condensation water
Directly influence, thus according to humidity can Accurate Prediction whether will produce condensation, and pass through control air-conditioning limit frequency in time
Operation, to prevent the generation of condensation.
Above-mentioned air-conditioning may include multiple types, may include on-hook, cabinet-type air conditioner, ceiling machine, window machine, mobile sky according to the installation method
It adjusts, embedded type air conditioner;It may include frequency changer by operation principle and determine frequency machine;It may include that domestic air conditioning and commercialization are empty by use environment
It adjusts.Following air-conditioning will be described air conditioner by taking the outdoor unit of split settings and indoor unit as an example.
As shown in Figure 1, the air-conditioning may include indoor unit 110, outdoor unit 120 and indoor unit 110 and 120 shape of outdoor unit
At refrigerant circulation circuit.Wherein, indoor unit 110 may include indoor heat exchanger 111, indoor fan 112;Outdoor unit 120 can
Including compressor 121, outdoor heat exchanger 122, outdoor fan 123, four-way valve 124 etc..Wherein indoor unit 110 and outdoor unit
Throttle valve 130 is additionally provided in 120 refrigerant pipeline.The gas outlet of compressor 121 is connect with the first interface of four-way valve 124, and four
The second interface of port valve 124 is connect with one end of outdoor heat exchanger 122, the other end of outdoor heat exchanger 122 through throttle valve 130 with
One end of indoor heat exchanger 111 connects, and the other end of indoor heat exchanger 111 is connect with the gas returning port of compressor 121.
For operation of air conditioner in refrigeration mode, refrigerant is gone out high steam refrigerant by compressor 121 through overcompression heel row, and is flowed through
Outdoor heat exchanger, while the outdoor air of outdoor fan sucking flows through the outdoor heat exchanger, is steamed to the high pressure in outdoor heat exchanger
Vapour refrigerant exchanges heat so that the high steam refrigerant is condensed into highly pressurised liquid;The highly pressurised liquid is entered the room by throttle valve is laggard
Interior heat exchanger, and evaporated under corresponding low pressure, the heat of surrounding is absorbed, while indoor fan makes to change in the continuous suction chamber of air
Hot device carries out heat exchange, and the air to turn cold after heat exchange is sent into interior.Such room air constantly circulates, and reaches drop
The purpose of low indoor humidity.It is understood that when operation of air conditioner is in refrigeration mode, outdoor heat exchanger is also referred to as condensing
Device, indoor heat exchanger are also referred to as evaporator.Operation of air conditioner in heating mode refrigerant circulation circuit with it is cold when refrigeration mode
Matchmaker's circulation loop is exactly the opposite, and outdoor heat exchanger can be described as evaporator, and indoor heat exchanger can be described as condenser.
Therefore, above-mentioned air-conditioning further includes:Humidity sensor 140 and controller 150;Wherein, the humidity sensor 140 is used
In opening and being run in the first preset time in the compressor of air-conditioning, indoor environment humidity RH1 is obtained;The compressor operating of air-conditioning
After second preset time, indoor environment humidity RH2 is obtained.The controller 150 be used for according to humidity RH1 and humidity RH1 and
The psychrometric difference of humidity RH2, control compressor limit frequency are run.
Specifically, above-mentioned humidity sensor 140 is mounted at indoor unit return air inlet, for detecting indoor environment humidity.When
So, which can also be mounted on indoor other positions, such as on the casing of indoor unit or other equipment
On, such as remote controler etc..Above controller 150 can be independently arranged control device, or be arranged in air conditioner electric
Control the function module on plate.The controller 150 is examined the different times that humidity sensor 140 is run in compressor of air conditioner are received
The indoor environment humidity of survey, and according to the indoor environment humidity, accurately predict the generation of condensation water, and control air-conditioning limit in time
Frequency is run, to prevent condensation water in advance.
Since the indoor environment humidity that compressor of air conditioner operates in different times can occur to change accordingly, if room at the beginning
Interior ambient humidity is larger, then whether meets preset condition according to the variable quantity of indoor environment humidity in the process of running, if discontented
Foot, then prediction will produce condensation water, and control air-conditioning limit and run frequently in advance.If indoor environment humidity is smaller at the beginning, still
In the process of running, indoor environment humidity does not decline not only air-conditioning, but also rises, and the ambient humidity after rising is more than
Preset humidity value, then prediction will produce condensation water, control air-conditioning in advance and carry out limit frequency operation.Therefore, the embodiment of the present invention is logical
It crosses the acquisition compressor of humidity sensor 140 and opens and run the humidity RH1 in the first preset time, and obtain compressor operating
Humidity RH2 after second preset time, controller 150 control compressor according to the difference of humidity RH1, humidity RH1 and humidity RH2
Frequency.Second preset time is that compressor is opened and starts timing after running the first preset time.
It should be noted that control rule is solidifying according to being generated because of the influence of ambient humidity during operation of air conditioner above
What the case where dew, was configured, adaptable control is set due to certainly can also be according to other influence situations because of ambient humidity
Rule.
Specifically, the embodiment of the present invention will pre-set the first humidity threshold.First humidity threshold is according to air conditioner compressed
In a period of time that machine is opened, the prediction standard of condensation water also difference is arranged under different indoor environment humidity.For example, this
In inventive embodiments, the first humidity threshold value be 65%, that is, be greater than or equal to 65% indoor environment humidity and be less than
To the prediction standard of condensation water difference under 65% indoor environment humidity.It is understood that the present invention do not limit this first
Humidity threshold only includes a value, multiple values can also be arranged, with the prediction to condensation water under the different indoor environment humidity of correspondence
Standard.
The indoor humidity that the embodiment of the present invention is detected according to the humidity sensor in air-conditioning system judges whether that control is empty
Limit frequency is adjusted to run.When being run due to air conditioner refrigerating, have direct influence of the indoor humidity for condensation water, therefore basis
Humidity can Accurate Prediction whether will produce condensation, and run in time by controlling air-conditioning limit frequency, to prevent the generation of condensation.
In addition, after above-mentioned first humidity threshold setting, can also be selected according to the practical service environment and usage time of air-conditioning
Select the prediction standard suitable with practical service environment and usage time.For example, in somewhere, long-term humidity be all higher than this first
When humidity threshold, then the prediction to condensation water under the indoor environment humidity more than or equal to the first humidity threshold can be directly selected
Standard carries out airconditioning control;Certain some months during use, then can be straight when local humidity is respectively less than first humidity threshold
Selecting selects the prediction standard under the indoor environment humidity less than the first humidity threshold to condensation water and carries out airconditioning control.
In one embodiment, above controller 150 is used for:Judge whether humidity RH1 is greater than or equal to the first default humidity threshold
Value;When humidity RH1 is greater than or equal to the first humidity threshold, judge whether the psychrometric difference of humidity RH1 and humidity RH2 are less than or wait
In the second default humidity threshold;It, will when the psychrometric difference of humidity RH1 and humidity RH2 are less than or equal to the second default humidity threshold
The maximum frequency of operation of the compressor of air-conditioning is set as preset running frequency.
Specifically, which is 65%.It opens and is run in the first preset time in compressor, obtained
Indoor environment humidity RH1.The value of first preset time can be 10 minutes.In this 10 minutes, humidity sensor 140 can
Only to obtain a humidity, and using the humidity as humidity RH1;It can also periodically obtain several times, then will obtain several times
Humidity be averaging, obtain humidity RH1.When the humidity RH1 of acquisition is greater than or equal to 65%, humidity sensor 140 is compressing
Machine obtains indoor environment humidity RH2 again after running the second preset time.The value of second preset time can be 30 minutes, i.e.,
Compressor is opened and is run 40 minutes.After compressor operating 30 minutes, humidity sensor 140 will obtain indoor environment humidity
RH2.It is understood that causing maloperation in order to avoid one-time detection is slipped up, the embodiment of the present invention can continuously acquire several
Secondary humidity, then average, to obtain accurate indoor environment humidity RH2.
When humidity RH1 is greater than or equal to 65%, controller 150 calculates the psychrometric difference Δ RH=of humidity RH1 and humidity RH2
RH1-RH2, and judge whether psychrometric difference Δ RH is less than or equal to the second default humidity threshold, the second default humidity threshold
Value is 5%.That is when Δ RH≤5%, during indicating operation of air conditioner, the variation unobvious of humidity, if so continuing current shape
State is run, and the probability that condensation water occurs in air-conditioning is very big, therefore the maximum frequency of operation of the compressor of air-conditioning is set as preset fortune
Line frequency, such as 50Hz.When assuming that air-conditioning determines compressor frequency as 60Hz according to indoor humidity with the temperature difference for setting humidity,
Since limit frequency is run, final compressor frequency is 50Hz;Assuming that air-conditioning is determined according to the temperature difference of indoor humidity and setting humidity
When compressor frequency is 40Hz, since limit frequency is run, final compressor frequency is 40Hz.
After carrying out limit frequency to air-conditioning, limit frequency time, such as 30 minutes can be controlled.Limit frequency fortune is being carried out to air-conditioning
After row 30 minutes, restore the normal work of compressor.In addition, after carrying out limit frequency to air-conditioning, it can also be according to indoor environment
The variation of humidity, it is determined whether exit limit frequency and control.Specially:Humidity sensor 140 is carrying out limit frequency to air-conditioning and then is obtaining
Indoor environment humidity is taken, RH3 is denoted as.Controller 150 is additionally operable to:When the psychrometric difference of humidity RH3 and humidity RH1 are greater than or equal to the
When three default humidity thresholds, restore the normal operation of the compressor of air-conditioning.In the present embodiment, which presets taking for humidity threshold
Value is 10%.I.e. after limiting compressor frequency and running, indoor environment humidity RH3 opens operation a period of time relative to compressor
When the slippage of the indoor environment humidity RH1 of interior acquisition is greater than or equal to 10%, restore the normal work of the compressor of air-conditioning.
It is understood that after carrying out limit frequency to compressor and controlling, humidity sensor 140 will periodically obtain interior
Ambient humidity RH3, and according to the psychrometric difference of humidity RH3 and humidity RH1, limit frequency can be exited by, which judging whether, controls.Judge can
When being controlled to exit limit frequency, restore the normal work of the compressor of air-conditioning.
In another embodiment, above controller 150 is additionally operable to:Judge whether humidity RH1 is less than the first default humidity threshold;
When humidity RH1 is less than the first default humidity threshold, it is default to judge whether the psychrometric difference of humidity RH2 and humidity RH1 is more than the 4th
Whether humidity threshold and humidity RH2 are greater than or equal to the 5th default humidity threshold;When the psychrometric difference of humidity RH2 and humidity RH1 are big
When the 4th default humidity threshold and humidity RH2 are greater than or equal to five default humidity thresholds, by the compressor of air-conditioning
Maximum frequency of operation be set as preset running frequency.
Specifically, the value of the above-mentioned first default humidity threshold is 65%.Compressor open and run first it is default when
In, obtain indoor environment humidity RH1.The value of first preset time can be 10 minutes.In this 10 minutes, humidity passes
Sensor 140 can only obtain a humidity, and using the humidity as humidity RH1;It can also periodically obtain several times, then will
The humidity obtained several times is averaging, and obtains humidity RH1.When the humidity RH1 of acquisition is greater than or equal to 65%, humidity sensor
140 obtain indoor environment humidity RH2 again after the second preset time of compressor operating.The value of second preset time can be
30 minutes, i.e. compressor is opened and is run 40 minutes.After compressor operating 30 minutes, humidity sensor 140 will obtain indoor
Ambient humidity RH2.It is understood that causing maloperation in order to avoid one-time detection is slipped up, the embodiment of the present invention can connect
It is continuous to obtain humidity several times, then average, to obtain accurate indoor environment humidity RH2.
When humidity RH1 is less than 65%, controller 150 calculates the psychrometric difference Δ RH=RH2- of humidity RH1 and humidity RH2
RH1, and judge whether psychrometric difference Δ RH is more than the 4th default humidity threshold and whether humidity RH2 is more than the 5th default humidity threshold
Value.The value of 4th default humidity threshold is 20%, and the value of the 5th default humidity threshold is 80%.I.e. Δ RH >=20% and
When RH2 >=80%, during indicating operation of air conditioner, humidity does not decline not only, rises instead, and the humidity after rising is more than
80%, if so continuing current state operation, the probability that condensation water occurs in air-conditioning is very big, therefore by the maximum of the compressor of air-conditioning
Running frequency is set as preset running frequency, such as 50Hz.Assume that air-conditioning is true according to the temperature difference of indoor humidity and setting humidity
Determine compressor frequency be 60Hz when, due to limit frequency run, final compressor frequency be 50Hz;Assuming that air-conditioning is according to indoor humidity
When determining compressor frequency as 40Hz with the temperature difference for setting humidity, since limit frequency is run, final compressor frequency is 40Hz.
After carrying out limit frequency to air-conditioning, limit frequency time, such as 30 minutes can be controlled.Limit frequency fortune is being carried out to air-conditioning
After row 30 minutes, restore the normal work of compressor.In addition, after carrying out limit frequency to air-conditioning, it can also be according to indoor environment
The variation of humidity, it is determined whether exit limit frequency and control.Specially:Humidity sensor 140 is carrying out limit frequency to air-conditioning and then is obtaining
Indoor environment humidity is taken, RH3 is denoted as.Controller 150 is additionally operable to:When the psychrometric difference of humidity RH3 and humidity RH1 are greater than or equal to the
When three default humidity thresholds, restore the normal operation of the compressor of air-conditioning.In the present embodiment, which presets taking for humidity threshold
Value is 10%.I.e. after limiting compressor frequency and running, indoor environment humidity RH3 opens operation a period of time relative to compressor
When the slippage of the indoor environment humidity RH1 of interior acquisition is greater than or equal to 10%, restore the normal work of the compressor of air-conditioning.
It is understood that after carrying out limit frequency to compressor and controlling, humidity sensor 140 will periodically obtain interior
Ambient humidity RH3, and according to the psychrometric difference of humidity RH3 and humidity RH1, limit frequency can be exited by, which judging whether, controls.Judge can
When being controlled to exit limit frequency, restore the normal work of the compressor of air-conditioning.
Further, above controller 150 is additionally operable to:When air-conditioning booting and compressor unlatching, by indoor environment humidity
It is reset with air-conditioner operation time.Air-conditioning has memory function in order to prevent, in air-conditioning booting and compressor unlatching operation,
The indoor environment humidity and air-conditioner operation time that are recorded in memory are also zeroed out by controller 150, in order to avoid last record
Information is used for this control.
Accordingly, the present invention also proposes a kind of control method for frequency of air-conditioning, based on above-mentioned air-conditioning to compressor into line frequency
Rate controls.As shown in Fig. 2, the control method for frequency of the air-conditioning includes the following steps:
Step S110, the compressor of air-conditioning is opened and is run in the first preset time, obtains indoor environment humidity RH1;
Step S120, after the second preset time of compressor operating of air-conditioning, indoor environment humidity RH2 is obtained;
Step S130, according to the psychrometric difference of humidity RH1 and humidity RH1 and humidity RH2, the frequency of compressor is controlled.
Since the indoor environment humidity that compressor of air conditioner operates in different times can occur to change accordingly, if room at the beginning
Interior ambient humidity is larger, then whether meets preset condition according to the variable quantity of indoor environment humidity in the process of running, if discontented
Foot, then prediction will produce condensation water, and control air-conditioning limit and run frequently in advance.If indoor environment humidity is smaller at the beginning, still
In the process of running, indoor environment humidity does not decline not only air-conditioning, but also rises, and the ambient humidity after rising is more than
Preset humidity value, then prediction will produce condensation water, control air-conditioning in advance and carry out limit frequency operation.Therefore, the embodiment of the present invention is logical
It crosses the acquisition compressor of humidity sensor 140 and opens and run the humidity RH1 in the first preset time, and obtain compressor operating
Humidity RH2 after second preset time, controller 150 control compressor according to the difference of humidity RH1, humidity RH1 and humidity RH2
Frequency.Second preset time is that compressor is opened and starts timing after running the first preset time.
The indoor humidity that the embodiment of the present invention is detected according to the humidity sensor in air-conditioning system judges whether that control is empty
Limit frequency is adjusted to run.When being run due to air conditioner refrigerating, have direct influence of the indoor humidity for condensation water, therefore basis
Humidity can Accurate Prediction whether will produce condensation, and run in time by controlling air-conditioning limit frequency, to prevent the generation of condensation.
Further, as shown in figure 3, above-mentioned steps S130 includes:
Step S201, judge whether humidity RH1 is greater than or equal to the first default humidity threshold;
Step S202, when humidity RH1 is greater than or equal to the first humidity threshold, judge the humidity of humidity RH1 and humidity RH2
Whether difference is less than or equal to the second default humidity threshold;
It step S203, will be empty when the psychrometric difference of humidity RH1 and humidity RH2 are less than or equal to the second default humidity threshold
The maximum frequency of operation of the compressor of tune is set as preset running frequency.
Specifically, which is 65%.It opens and is run in the first preset time in compressor, obtained
Indoor environment humidity RH1.The value of first preset time can be 10 minutes.In this 10 minutes, humidity sensor 140 can
Only to obtain a humidity, and using the humidity as humidity RH1;It can also periodically obtain several times, then will obtain several times
Humidity be averaging, obtain humidity RH1.When the humidity RH1 of acquisition is greater than or equal to 65%, humidity sensor 140 is compressing
Machine obtains indoor environment humidity RH2 again after running the second preset time.The value of second preset time can be 30 minutes, i.e.,
Compressor is opened and is run 40 minutes.After compressor operating 30 minutes, humidity sensor 140 will obtain indoor environment humidity
RH2.It is understood that causing maloperation in order to avoid one-time detection is slipped up, the embodiment of the present invention can continuously acquire several
Secondary humidity, then average, to obtain accurate indoor environment humidity RH2.
When humidity RH1 is greater than or equal to 65%, controller 150 calculates the psychrometric difference Δ RH=of humidity RH1 and humidity RH2
RH1-RH2, and judge whether psychrometric difference Δ RH is less than or equal to the second default humidity threshold, the second default humidity threshold
Value is 5%.That is when Δ RH≤5%, during indicating operation of air conditioner, the variation unobvious of humidity, if so continuing current shape
State is run, and the probability that condensation water occurs in air-conditioning is very big, therefore the maximum frequency of operation of the compressor of air-conditioning is set as preset fortune
Line frequency, such as 50Hz.When assuming that air-conditioning determines compressor frequency as 60Hz according to indoor humidity with the temperature difference for setting humidity,
Since limit frequency is run, final compressor frequency is 50Hz;Assuming that air-conditioning is determined according to the temperature difference of indoor humidity and setting humidity
When compressor frequency is 40Hz, since limit frequency is run, final compressor frequency is 40Hz.
Further, further include after above-mentioned steps S203:
Step S204, indoor environment humidity RH3 is obtained;
Step S205, judge whether the psychrometric difference of humidity RH3 and humidity RH1 is greater than or equal to third and presets humidity threshold,
It is to be transferred to step S206, otherwise return to step S204;
Step S206, when the psychrometric difference of humidity RH3 and humidity RH1, which is greater than or equal to third, presets humidity threshold, restore
The normal operation of the compressor of air-conditioning.
After carrying out limit frequency to air-conditioning, limit frequency time, such as 30 minutes can be controlled.Limit frequency fortune is being carried out to air-conditioning
After row 30 minutes, restore the normal work of compressor.In addition, after carrying out limit frequency to air-conditioning, it can also be according to indoor environment
The variation of humidity, it is determined whether exit limit frequency and control.Specially:Humidity sensor 140 is carrying out limit frequency to air-conditioning and then is obtaining
Indoor environment humidity is taken, RH3 is denoted as.Controller 150 is additionally operable to:When the psychrometric difference of humidity RH3 and humidity RH1 are greater than or equal to the
When three default humidity thresholds, restore the normal operation of the compressor of air-conditioning.In the present embodiment, which presets taking for humidity threshold
Value is 10%.I.e. after limiting compressor frequency and running, indoor environment humidity RH3 opens operation a period of time relative to compressor
When the slippage of the indoor environment humidity RH1 of interior acquisition is greater than or equal to 10%, restore the normal work of the compressor of air-conditioning.
It is understood that after carrying out limit frequency to compressor and controlling, humidity sensor 140 will periodically obtain interior
Ambient humidity RH3, and according to the psychrometric difference of humidity RH3 and humidity RH1, limit frequency can be exited by, which judging whether, controls.Judge can
When being controlled to exit limit frequency, restore the normal work of the compressor of air-conditioning.
Further, as shown in figure 4, above-mentioned steps S130 may also include:
Step S301, judge whether humidity RH1 is less than the first default humidity threshold;
Step S302, when humidity RH1 is less than the first default humidity threshold, judge the psychrometric difference of humidity RH2 and humidity RH1
Whether it is more than the 4th default humidity threshold and whether humidity RH2 is more than the 5th default humidity threshold;
Step S303, when the psychrometric difference of humidity RH2 and humidity RH1 are greater than or equal to the 4th default humidity threshold and humidity
When RH2 is more than five default humidity thresholds, the maximum frequency of operation of the compressor of air-conditioning is set as preset running frequency.
Specifically, the value of the above-mentioned first default humidity threshold is 65%.Compressor open and run first it is default when
In, obtain indoor environment humidity RH1.The value of first preset time can be 10 minutes.In this 10 minutes, humidity passes
Sensor 140 can only obtain a humidity, and using the humidity as humidity RH1;It can also periodically obtain several times, then will
The humidity obtained several times is averaging, and obtains humidity RH1.When the humidity RH1 of acquisition is greater than or equal to 65%, humidity sensor
140 obtain indoor environment humidity RH2 again after the second preset time of compressor operating.The value of second preset time can be
30 minutes, i.e. compressor is opened and is run 40 minutes.After compressor operating 30 minutes, humidity sensor 140 will obtain indoor
Ambient humidity RH2.It is understood that causing maloperation in order to avoid one-time detection is slipped up, the embodiment of the present invention can connect
It is continuous to obtain humidity several times, then average, to obtain accurate indoor environment humidity RH2.
When humidity RH1 is less than 65%, controller 150 calculates the psychrometric difference Δ RH=RH2- of humidity RH1 and humidity RH2
RH1, and judge whether psychrometric difference Δ RH is more than the 4th default humidity threshold and whether humidity RH2 is more than the 5th default humidity threshold
Value.The value of 4th default humidity threshold is 20%, and the value of the 5th default humidity threshold is 80%.I.e. Δ RH >=20% and
When RH2 >=80%, during indicating operation of air conditioner, humidity does not decline not only, rises instead, and the humidity after rising is more than
80%, if so continuing current state operation, the probability that condensation water occurs in air-conditioning is very big, therefore by the maximum of the compressor of air-conditioning
Running frequency is set as preset running frequency, such as 50Hz.Assume that air-conditioning is true according to the temperature difference of indoor humidity and setting humidity
Determine compressor frequency be 60Hz when, due to limit frequency run, final compressor frequency be 50Hz;Assuming that air-conditioning is according to indoor humidity
When determining compressor frequency as 40Hz with the temperature difference for setting humidity, since limit frequency is run, final compressor frequency is 40Hz.
Further, may also include after above-mentioned steps S303:
Step S304, indoor environment humidity RH3 is obtained;
Step S305, judge whether the psychrometric difference of humidity RH3 and humidity RH1 is greater than or equal to third and presets humidity threshold,
It is to be transferred to step S306, otherwise return to step S304;
Step S306, when the psychrometric difference of humidity RH3 and humidity RH1, which is greater than or equal to third, presets humidity threshold, restore
The normal operation of the compressor of air-conditioning.
Specifically, which is 65%.It opens and is run in the first preset time in compressor, obtained
Indoor environment humidity RH1.The value of first preset time can be 10 minutes.In this 10 minutes, humidity sensor 140 can
Only to obtain a humidity, and using the humidity as humidity RH1;It can also periodically obtain several times, then will obtain several times
Humidity be averaging, obtain humidity RH1.When the humidity RH1 of acquisition is greater than or equal to 65%, humidity sensor 140 is compressing
Machine obtains indoor environment humidity RH2 again after running the second preset time.The value of second preset time can be 30 minutes, i.e.,
Compressor is opened and is run 40 minutes.After compressor operating 30 minutes, humidity sensor 140 will obtain indoor environment humidity
RH2.It is understood that causing maloperation in order to avoid one-time detection is slipped up, the embodiment of the present invention can continuously acquire several
Secondary humidity, then average, to obtain accurate indoor environment humidity RH2.
When humidity RH1 is greater than or equal to 65%, controller 150 calculates the psychrometric difference Δ RH=of humidity RH1 and humidity RH2
RH1-RH2, and judge whether psychrometric difference Δ RH is less than or equal to the second default humidity threshold, the second default humidity threshold
Value is 5%.That is when Δ RH≤5%, during indicating operation of air conditioner, the variation unobvious of humidity, if so continuing current shape
State is run, and the probability that condensation water occurs in air-conditioning is very big, therefore the maximum frequency of operation of the compressor of air-conditioning is set as preset fortune
Line frequency, such as 50Hz.When assuming that air-conditioning determines compressor frequency as 60Hz according to indoor humidity with the temperature difference for setting humidity,
Since limit frequency is run, final compressor frequency is 50Hz;Assuming that air-conditioning is determined according to the temperature difference of indoor humidity and setting humidity
When compressor frequency is 40Hz, since limit frequency is run, final compressor frequency is 40Hz.
Further, as shown in figure 5, may also include before above-mentioned steps S110:
Step S100, when air-conditioning is switched on and compressor is opened, indoor environment humidity and air-conditioner operation time are reset.
Air-conditioning has memory function in order to prevent, and in air-conditioning booting and compressor unlatching operation, controller 150 will also be remembered in memory
The indoor environment humidity and air-conditioner operation time of record are zeroed out, in case the information of last record is used for this control.
Further, as shown in fig. 6, the frequency control process of compressor of air conditioner is specifically described.Assuming that first is pre-
If the time is 10 minutes, the second preset time is 30 minutes, the first default humidity threshold is that the 65%, second default humidity threshold is
5%, it be the 10, the 4th default humidity threshold be the 20%, the 5th default humidity threshold is 80% that third, which presets humidity threshold,.Specific control
Process processed is as follows:
S1, air-conditioning booting, indoor environment humidity and air-conditioner operation time are reset;
S2, acquisition compressor are opened and run the indoor environment humidity RH1 in 10 minutes;
S3, judge whether the run time of compressor is more than 30 minutes;It is to be transferred to step S5, is otherwise transferred to step S4;
S4, control compressor keep current operating status, and return to step S3;
S5, indoor environment humidity RH2 is obtained, and is transferred to step S6;
S6, judge whether indoor environment humidity is greater than or equal to 65%, be to be transferred to step S7, be otherwise transferred to step S9;
S7, judge whether the psychrometric difference of indoor environment humidity RH1 and indoor environment humidity RH2 is less than 5%, be to be transferred to step
Otherwise rapid S10 is transferred to step S4;
S8, judge whether the psychrometric difference of indoor environment humidity RH2 and indoor environment humidity RH1 is more than 20%, and indoor ring
Border humidity RH2 is more than 80%, is to be transferred to step S9, is otherwise transferred to step S4;
S9, the compressor limit frequency for controlling air-conditioning run, and are transferred to step S10;
S10, indoor environment humidity RH3 is obtained;
S11, judge whether the psychrometric difference of indoor environment humidity RH3 and indoor environment humidity RH1 is more than 10%, be to be transferred to
Otherwise step S12 is transferred to step S10;
S12, restore air-conditioning compressor normal operation.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical scheme of the present invention substantially in other words does the prior art
Going out the part of contribution can be expressed in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions are used so that a station terminal equipment (can be mobile phone, computer, clothes
Be engaged in device, air conditioner or the network equipment etc.) execute method described in each embodiment of the present invention.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (8)
1. a kind of control method for frequency of air-conditioning, which is characterized in that the control method for frequency of the air-conditioning includes the following steps:
The compressor of air-conditioning is opened and is run in the first preset time, and indoor environment humidity RH1 is obtained;
After the second preset time of compressor operating of air-conditioning, indoor environment humidity RH2 is obtained;
According to the psychrometric difference of humidity RH1 and humidity RH1 and humidity RH2, the frequency of compressor is controlled;
Wherein, the psychrometric difference according to humidity RH1 and humidity RH1 and humidity RH2, the step of controlling the frequency of compressor
Including:
Judge whether humidity RH1 is less than the first default humidity threshold;
When humidity RH1 is less than the first default humidity threshold, judge whether the psychrometric difference of humidity RH2 and humidity RH1 is more than the 4th
It presets humidity threshold and whether humidity RH2 is more than the 5th default humidity threshold;
When the psychrometric difference of humidity RH2 and humidity RH1 are greater than or equal to the 4th default humidity threshold and humidity RH2, to be more than the 5th default
When humidity threshold, the maximum frequency of operation of the compressor of air-conditioning is set as preset running frequency.
2. the control method for frequency of air-conditioning as described in claim 1, which is characterized in that described according to humidity RH1 and humidity
The step of psychrometric difference of RH1 and humidity RH2, the frequency for controlling compressor includes:
Judge whether humidity RH1 is greater than or equal to the first default humidity threshold;
When humidity RH1 be greater than or equal to the first humidity threshold when, judge the psychrometric difference of humidity RH1 and humidity RH2 whether be less than or
Equal to the second default humidity threshold;
When the psychrometric difference of humidity RH1 and humidity RH2 are less than or equal to the second default humidity threshold, most by the compressor of air-conditioning
Big running frequency is set as preset running frequency.
3. the control method for frequency of air-conditioning as claimed in claim 1 or 2, which is characterized in that the compressor by air-conditioning
Maximum frequency of operation was set as after the step of preset running frequency:
Obtain indoor environment humidity RH3;
When the psychrometric difference of humidity RH3 and humidity RH1, which is greater than or equal to third, presets humidity threshold, restore the compressor of air-conditioning
Normal operation.
4. such as the control method for frequency of claim 1-2 any one of them air-conditionings, which is characterized in that the frequency control of the air-conditioning
Method processed further includes:
When air-conditioning booting and compressor unlatching, indoor environment humidity and air-conditioner operation time are reset.
5. a kind of air-conditioning, including compressor, evaporator, condenser, wind turbine and compressor, evaporator, condenser concatenate to be formed
Coolant loop, which is characterized in that the air-conditioning further includes humidity sensor and controller;Wherein,
The humidity sensor is used to open and be run in the first preset time in the compressor of air-conditioning, obtains indoor environment humidity
RH1;After the second preset time of compressor operating of air-conditioning, indoor environment humidity RH2 is obtained;
The controller is used for the psychrometric difference according to humidity RH1 and humidity RH1 and humidity RH2, controls the frequency of compressor;
The controller is additionally operable to:Judge whether humidity RH1 is less than the first default humidity threshold;When humidity RH1 is less than first in advance
If when humidity threshold, judging whether the psychrometric difference of humidity RH2 and humidity RH1 is more than the 4th default humidity threshold and humidity RH2 and is
It is no to be more than the 5th default humidity threshold;When the psychrometric difference of humidity RH2 and humidity RH1 be greater than or equal to the 4th default humidity threshold and
When humidity RH2 is more than five default humidity thresholds, the maximum frequency of operation of the compressor of air-conditioning is set as preset running frequency.
6. air-conditioning as stated in claim 5, which is characterized in that the controller is used for:Judge whether humidity RH1 is more than or waits
In the first default humidity threshold;When humidity RH is greater than or equal to the first humidity threshold, judge that humidity RH1's and humidity RH2 is wet
Whether degree difference is less than or equal to the second default humidity threshold;When the psychrometric difference of humidity RH1 and humidity RH2 are less than or equal to second in advance
If when humidity threshold, the maximum frequency of operation of the compressor of air-conditioning is set as preset running frequency.
7. such as air-conditioning described in claim 5 or 6, which is characterized in that the humidity sensor is additionally operable to:By the compressor of air-conditioning
Maximum frequency of operation be set as after preset running frequency, obtain indoor environment humidity RH3;
The controller is additionally operable to:When the psychrometric difference of humidity RH3 and humidity RH1, which is greater than or equal to third, presets humidity threshold,
Restore the normal operation of the compressor of air-conditioning.
8. such as claim 5-6 any one of them air-conditionings, which is characterized in that the controller is additionally operable to:When air-conditioning booting and
When compressor is opened, indoor environment humidity and air-conditioner operation time are reset.
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