CN104879836B - Control method, device and the dehumidifier of frequency conversion dehumidifier - Google Patents
Control method, device and the dehumidifier of frequency conversion dehumidifier Download PDFInfo
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- CN104879836B CN104879836B CN201510200724.5A CN201510200724A CN104879836B CN 104879836 B CN104879836 B CN 104879836B CN 201510200724 A CN201510200724 A CN 201510200724A CN 104879836 B CN104879836 B CN 104879836B
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- dehumidifier
- temperature
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- predetermined threshold
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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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
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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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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
- 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
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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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F2003/144—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of control method, device and the dehumidifier of frequency conversion dehumidifier, wherein this method includes：S1, control dehumidifier is run with preset state；S2, detects the temperature of evaporator in environment dry-bulb temperature, relative humidity and dehumidifier in dehumidifier；S3, according to environment dry-bulb temperature and relative humidity calculation dew-point temperature；S4, judges whether dew-point temperature is more than the first predetermined threshold value；S5, if dew-point temperature is more than the first predetermined threshold value, determines whether whether the temperature of evaporator is less than or equal to the second predetermined threshold value；And S6, if the temperature of evaporator is less than or equal to the second predetermined threshold value, the compressor frequency of dehumidifier is reduced, and increase the rotation speed of fan of dehumidifier, and after operation preset time, continue executing with step S2.This method enables to dehumidifier to delay frosting in the case where dew-point temperature is more than 0 DEG C of operating mode, improves the moisture removal under these operating modes.
Description
Technical field
The present invention relates to dehumidifier technical field, more particularly to a kind of control method, device and the tool of frequency conversion dehumidifier
There is the dehumidifier of the control device.
Background technology
At present, when dehumidifier is run in some in the environment of low temperature, the temperature of the evaporator in dehumidifier can be very low, and one
As by evaporimeter frosting one end time again by frost be melted into water, moisture removal is obtained with this.But, in the process of control moisture removal
In, mainly there are two factors moisture removal can be caused to reduce：(1) in Frost formation process, the frost of evaporator surface is more, and air
Heat exchange is poorer, it is not easy to frost is melted into water, causes moisture removal to reduce；(2) defrost process apoplexy can make a frost part for solid straight
Connect and be sublimate into air, cause moisture removal to reduce.Therefore, dehumidifier how is made to improve moisture removal under middle low temperature environment
The problem of be worth those skilled in the art research.
The content of the invention
The purpose of the present invention is intended at least solve one of above-mentioned technical problem to a certain extent.
Therefore, first purpose of the present invention is to propose a kind of control method of frequency conversion dehumidifier.This method can make
Obtain dehumidifier and delay frosting in the case where dew-point temperature is more than 0 DEG C of operating mode, improve the moisture removal under these operating modes, and prevent steaming
Polyvoltine is crossed in hair device frosting does not cause totally the phenomenon frozen to occur.
Second object of the present invention is to propose a kind of control device of frequency conversion dehumidifier.
Third object of the present invention is to propose a kind of dehumidifier.
To achieve these goals, the control method of the frequency conversion dehumidifier of first aspect present invention embodiment, including：S1,
Control dehumidifier is run with preset state；S2, detects environment dry-bulb temperature in the dehumidifier, relative humidity and described
The temperature of evaporator in dehumidifier；S3, according to the environment dry-bulb temperature and the relative humidity calculation dew-point temperature；S4, sentences
Whether the dew-point temperature of breaking is more than the first predetermined threshold value；S5, if the dew-point temperature is more than first predetermined threshold value,
Determine whether whether the temperature of the evaporator is less than or equal to the second predetermined threshold value；And S6, if the evaporator
Temperature is less than or equal to second predetermined threshold value, then reduces the compressor frequency of the dehumidifier, and increase the dehumidifier
Rotation speed of fan, and operation preset time after, continue executing with the step S2.
The control method of frequency conversion dehumidifier according to embodiments of the present invention, first can control dehumidifier to be transported with preset state
OK, the temperature of evaporator in environment dry-bulb temperature, relative humidity and dehumidifier in dehumidifier is can detect afterwards, and according to environment
Dry-bulb temperature and relative humidity calculation dew-point temperature, and judge whether dew-point temperature is more than the first predetermined threshold value, if so, then entering one
Step judges whether the temperature of evaporator is less than or equal to the second predetermined threshold value, if so, the compressor frequency of dehumidifier is then reduced, and
Increase the rotation speed of fan of dehumidifier, so enable to dehumidifier to delay frosting in the case where dew-point temperature is more than 0 DEG C of operating mode, improve
Moisture removal under these operating modes, and preventing evaporimeter frosting to cross polyvoltine does not cause totally the phenomenon frozen to occur.
According to one embodiment of present invention, the control method also includes：S7, if the temperature of the evaporator is more than
Second predetermined threshold value, then obtain the temperature difference between the temperature of the evaporator and the dew-point temperature；S8, according to described
Temperature difference is controlled to the dehumidifier.
According to one embodiment of present invention, the dehumidifier is controlled according to the temperature difference, specifically included：
S81, judges whether the temperature difference is more than the 3rd predetermined threshold value；S82, if the temperature difference is more than the described 3rd default threshold
Value, then increase the compressor frequency of the dehumidifier, and after operation preset time, continue executing with the step S2；S83,
If the temperature difference is less than or equal to the 3rd predetermined threshold value, the dehumidifier is controlled to continue to keep the preset state
Operation.
According to one embodiment of present invention, the control method also includes：S9, if the dew-point temperature is less than or waited
In first predetermined threshold value, then the dehumidifier is controlled to continue to keep the preset state operation.
Wherein, in one embodiment of the invention, the default threshold of first predetermined threshold value, the second predetermined threshold value and the 3rd
Value is 0.
To achieve these goals, the control device of the frequency conversion dehumidifier of second aspect of the present invention embodiment, including：First
Control module, for controlling dehumidifier to be run with preset state；Detection module, for detecting that environment is done in the dehumidifier
The temperature of evaporator in ball temperature, relative humidity and the dehumidifier；Computing module, for according to the environment dry-bulb temperature
With the relative humidity calculation dew-point temperature；First judge module, presets for judging whether the dew-point temperature is more than first
Threshold value；Second judge module, for judging that the dew-point temperature is more than first predetermined threshold value in first judge module
When, determine whether whether the temperature of the evaporator is less than or equal to the second predetermined threshold value；And second control module, it is used for
When second judge module judges that the temperature of the evaporator is less than or equal to second predetermined threshold value, removed described in reduction
The compressor frequency of wet machine, and increase the rotation speed of fan of the dehumidifier.
The control device of frequency conversion dehumidifier according to embodiments of the present invention, can by the first control module control dehumidifier with
Preset state is run, evaporator in environment dry-bulb temperature, relative humidity and dehumidifier in detection module detection dehumidifier
Temperature, detection module judges dew point temperature according to environment dry-bulb temperature and relative humidity calculation dew-point temperature, the first judge module
Whether degree is more than the first predetermined threshold value, if so, then the second judge module determines whether whether the temperature of evaporator is less than or waits
In the second predetermined threshold value, if so, then the second control module reduces the compressor frequency of dehumidifier, and increase the blower fan turn of dehumidifier
Speed, so enables to dehumidifier to delay frosting in the case where dew-point temperature is more than 0 DEG C of operating mode, improves the dehumidifying under these operating modes
Amount, and preventing evaporimeter frosting to cross polyvoltine does not cause totally the phenomenon frozen to occur.
According to one embodiment of present invention, the control device also includes：Acquisition module, for judging described second
When module judges that the temperature of the evaporator is more than second predetermined threshold value, the temperature and the dew point of the evaporator are obtained
Temperature difference between temperature；Second control module is additionally operable to be controlled the dehumidifier according to the temperature difference.
According to one embodiment of present invention, second control module specifically for：Judge whether the temperature difference is big
In the 3rd predetermined threshold value；If the temperature difference is more than the 3rd predetermined threshold value, increase the compressor frequency of the dehumidifier
Rate；If the temperature difference is less than or equal to the 3rd predetermined threshold value, the dehumidifier is controlled to continue to keep described default
State is run.
According to one embodiment of present invention, second control module is additionally operable to judge institute in first judge module
When stating dew-point temperature less than or equal to first predetermined threshold value, the dehumidifier is controlled to continue to keep the preset state fortune
OK.
Wherein, in one embodiment of the invention, the default threshold of first predetermined threshold value, the second predetermined threshold value and the 3rd
Value is 0.
To achieve these goals, the dehumidifier of third aspect present invention embodiment, including：Second aspect of the present invention is implemented
The control device of the frequency conversion dehumidifier of example.
Dehumidifier according to embodiments of the present invention, can control dehumidifier with pre- by the first control module in control device
If state is run, evaporator in environment dry-bulb temperature, relative humidity and dehumidifier in detection module detection dehumidifier
Temperature, detection module judges dew-point temperature according to environment dry-bulb temperature and relative humidity calculation dew-point temperature, the first judge module
Whether the first predetermined threshold value is more than, if so, then the second judge module determines whether whether the temperature of evaporator is less than or equal to
Second predetermined threshold value, if so, then the second control module reduces the compressor frequency of dehumidifier, and increases the blower fan turn of dehumidifier
Speed, so enables to dehumidifier to delay frosting in the case where dew-point temperature is more than 0 DEG C of operating mode, improves the dehumidifying under these operating modes
Amount, and preventing evaporimeter frosting to cross polyvoltine does not cause totally the phenomenon frozen to occur.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and be readily appreciated that, wherein：
Fig. 1 is the flow chart of the control method of frequency conversion dehumidifier according to an embodiment of the invention；
Fig. 2 is the flow chart of the control method of frequency conversion dehumidifier in accordance with another embodiment of the present invention；
Fig. 3 is the structural representation of the control device of frequency conversion dehumidifier according to an embodiment of the invention；
Fig. 4 is the structural representation of the control device of frequency conversion dehumidifier in accordance with another embodiment of the present invention.
Reference：
First control module 10, detection module 20, computing module 30, the first judge module 40, the second judge module 50,
Two control modules 60 and acquisition module 70.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
Below with reference to the accompanying drawings the control method of the frequency conversion dehumidifier of the embodiment of the present invention, device are described and with control dress
The dehumidifier put.
Fig. 1 is the flow chart of the control method of frequency conversion dehumidifier according to an embodiment of the invention.It should be noted that
The control method of the frequency conversion dehumidifier of the embodiment of the present invention can be applied on dehumidifier, and the dehumidifier is useful in low temperature environment in certain
Lower operation.
As shown in figure 1, the control method of the frequency conversion dehumidifier can include：
S101, control dehumidifier is run with preset state.
S102, detects the temperature of evaporator in environment dry-bulb temperature, relative humidity and dehumidifier in dehumidifier.
Specifically, can respectively by corresponding sensor detect dehumidifier in environment dry-bulb temperature t, relative humidity RH and
The temperature T2 of evaporator in dehumidifier.
S103, according to environment dry-bulb temperature and relative humidity calculation dew-point temperature.
Specifically, the environment dry-bulb temperature t detected and relative humidity RH can be substituted into dew-point temperature Td calculation formula
In, to obtain dew-point temperature Td.More specifically, in an embodiment of the present invention, mug(unit of measure) Lars formula can be used, by environment dry bulb
Temperature t and relative humidity RH is substituted into the formula of mug(unit of measure) Lars to calculate dew-point temperature, and using the dew-point temperature as initial value, then
Repeat obtaining final dew-point temperature Td after approaching.
It should be noted that the calculation formula of the dew-point temperature of the embodiment of the present invention is not limited to use mug(unit of measure) Lars formula,
Also formula can be calculated by other dew-point temperatures of the prior art, as long as that is, can according to environment dry-bulb temperature and relative humidity
Dew-point temperature is obtained, the present invention is not specifically limited to the calculation formula of dew-point temperature.
S104, judges whether dew-point temperature is more than the first predetermined threshold value.
Wherein, in an embodiment of the present invention, the first predetermined threshold value can be 0.
S105, if dew-point temperature be more than the first predetermined threshold value, determine whether evaporator temperature whether be less than or
Equal to the second predetermined threshold value.
Wherein, in an embodiment of the present invention, the second predetermined threshold value can be 0.
S106, if the temperature of evaporator is less than or equal to the second predetermined threshold value, reduces the compressor frequency of dehumidifier,
And increase the rotation speed of fan of dehumidifier, and after operation preset time, continue executing with step S102.
Specifically, when dew-point temperature is more than the first predetermined threshold value (such as 0), and evaporator temperature be less than or equal to it is second pre-
If during threshold value (such as 0), it is possible to decrease compressor frequency, and increasing rotation speed of fan.For example, it is assumed that dehumidifier is in certain under low temperature environment
Operation, by corresponding 15 DEG C of sensors sense environmental dry-bulb temperature, relative humidity is 60%, and the temperature of evaporator is -6.5
DEG C, and dew-point temperature is obtained for 7.37 DEG C according to environment dry-bulb temperature and relative humidity calculation.Now dew-point temperature be more than 0, and
Evaporator temperature is less than 0 (now evaporator meeting frosting), then reduces compressor frequency, and improves rotation speed of fan, so
Raise the evaporator temperature of dehumidifier, the frosting of retard evaporation device is to improve moisture removal.And after operation a period of time, continue
Step S102 is performed, that is, continues to detect the temperature of evaporator in environment dry-bulb temperature, relative humidity and dehumidifier in dehumidifier,
And according to environment dry-bulb temperature, relative humidity calculation dew-point temperature, the size to dew-point temperature judges afterwards, and according to sentencing
Disconnected result is controlled dehumidifier accordingly.
The control method of frequency conversion dehumidifier according to embodiments of the present invention, first can control dehumidifier to be transported with preset state
OK, the temperature of evaporator in environment dry-bulb temperature, relative humidity and dehumidifier in dehumidifier is can detect afterwards, and according to environment
Dry-bulb temperature and relative humidity calculation dew-point temperature, and judge whether dew-point temperature is more than the first predetermined threshold value, if so, then entering one
Step judges whether the temperature of evaporator is less than or equal to the second predetermined threshold value, if so, the compressor frequency of dehumidifier is then reduced, and
Increase the rotation speed of fan of dehumidifier, so enable to dehumidifier to delay frosting in the case where dew-point temperature is more than 0 DEG C of operating mode, improve
Moisture removal under these operating modes, and preventing evaporimeter frosting to cross polyvoltine does not cause totally the phenomenon frozen to occur.
Fig. 2 is the flow chart of the control method of frequency conversion dehumidifier in accordance with another embodiment of the present invention.Need explanation
It is that the control method of the frequency conversion dehumidifier of the embodiment of the present invention can be applied on dehumidifier, and the dehumidifier is useful in low temperature in certain
Run under environment.
In an embodiment of the present invention, when the temperature of the evaporator detected is higher than dew-point temperature, compressor can be improved
Frequency, so that evaporator temperature is reduced, to improve moisture removal.Specifically, as described in Figure 2, the control method of the frequency conversion dehumidifier
It can include：
S201, control dehumidifier is run with preset state.
S202, detects the temperature of evaporator in environment dry-bulb temperature, relative humidity and dehumidifier in dehumidifier.
Specifically, can respectively by corresponding sensor detect dehumidifier in environment dry-bulb temperature t, relative humidity RH and
The temperature T2 of evaporator in dehumidifier.
S203, according to environment dry-bulb temperature and relative humidity calculation dew-point temperature.
Specifically, the environment dry-bulb temperature t detected and relative humidity RH can be substituted into dew-point temperature Td calculation formula
In, to obtain dew-point temperature Td.More specifically, in an embodiment of the present invention, mug(unit of measure) Lars formula can be used, by environment dry bulb
Temperature t and relative humidity RH is substituted into the formula of mug(unit of measure) Lars to calculate dew-point temperature, and using the dew-point temperature as initial value, then
Repeat obtaining final dew-point temperature Td after approaching.
It should be noted that the calculation formula of the dew-point temperature of the embodiment of the present invention is not limited to use mug(unit of measure) Lars formula,
Also formula can be calculated by other dew-point temperatures of the prior art, as long as that is, can according to environment dry-bulb temperature and relative humidity
Dew-point temperature is obtained, the present invention is not specifically limited to the calculation formula of dew-point temperature.
S204, judges whether dew-point temperature is more than the first predetermined threshold value.
Wherein, in an embodiment of the present invention, the first predetermined threshold value can be 0.
S205, if dew-point temperature be more than the first predetermined threshold value, determine whether evaporator temperature whether be less than or
Equal to the second predetermined threshold value.Wherein, in an embodiment of the present invention, the second predetermined threshold value can be 0.
Further, in an embodiment of the present invention, as shown in Fig. 2 the control method of the frequency conversion dehumidifier, in addition to：
If dew-point temperature is less than or equal to the first predetermined threshold value, control dehumidifier continues to keep preset state operation, that is, returns to step
Rapid S201.It is appreciated that working as dew-point temperature is less than or equal to the first predetermined threshold value (such as 0), when, it is necessary to it is less than evaporator temperature
0 degree, can just there is moisture removal, dehumidifier can be maintained to keep preset state operation in this case.
S206, if the temperature of evaporator is less than or equal to the second predetermined threshold value, reduces the compressor frequency of dehumidifier,
And increase the rotation speed of fan of dehumidifier, and after operation preset time, continue executing with step S202.
Specifically, when dew-point temperature is more than the first predetermined threshold value (such as 0), and evaporator temperature be less than or equal to it is second pre-
If during threshold value (such as 0), it is possible to decrease compressor frequency, and increasing rotation speed of fan, it can so make the evaporator temperature liter of dehumidifier
Height, the frosting of retard evaporation device is to improve moisture removal.And after operation a period of time, continue executing with step S202, that is, continue to examine
The temperature of evaporator in environment dry-bulb temperature, relative humidity and dehumidifier in dehumidifier is surveyed, and according to environment dry-bulb temperature, phase
Dew-point temperature is calculated to humidity, the size to dew-point temperature judges afterwards, and phase is carried out to dehumidifier according to judged result
The control answered.
S207, if the temperature of evaporator is more than the second predetermined threshold value, obtain evaporator temperature and dew-point temperature it
Between temperature difference.
Specifically, when the temperature of evaporator is more than the second predetermined threshold value (such as 0), dew can be subtracted by the temperature of evaporator
Temperature is put to obtain temperature difference between the two.
S208, is controlled according to temperature difference to dehumidifier.
Specifically, in an embodiment of the present invention, (walked as shown in Fig. 2 being controlled according to temperature difference to dehumidifier
Rapid S208) specifically include：Judge whether temperature difference is more than the 3rd predetermined threshold value (S2081)；Preset if temperature difference is more than the 3rd
Threshold value, then increase the compressor frequency of dehumidifier, and after operation preset time, continue executing with step S202 (S2082)；Such as
Fruit temperature difference is less than or equal to the 3rd predetermined threshold value, then controls dehumidifier to continue to keep preset state operation, i.e. return to step
S201.Wherein, in an embodiment of the present invention, the 3rd predetermined threshold value can be 0.
For example, it is assumed that dehumidifier is run in certain under low temperature environment, passes through corresponding sensors sense environmental dry bulb
Temperature is 15 DEG C, and relative humidity is 60%, and the temperature of evaporator is -6.5 DEG C, and according to environment dry-bulb temperature and relative humidity meter
Calculation obtains dew-point temperature for 7.37 DEG C.Now dew-point temperature is more than 0, and evaporator temperature is less than 0 (now evaporator meeting frosting),
Compressor frequency is then reduced, and improves rotation speed of fan, can so raise evaporator temperature, delays its frosting.Operation one
After the section time, environment dry-bulb temperature is detected for 16 DEG C, relative humidity is 50%, the temperature of evaporator is 1.8 DEG C, is now calculated
Dew point temperature is 5.69 DEG C.Now dew-point temperature is more than 0, and evaporator temperature is between 0 and dew-point temperature, will not frosting and
Can be by the hydrogenesis in air, now dehumidifier does not adjust, and continues to keep standing state operation.
The control method of frequency conversion dehumidifier according to embodiments of the present invention, is higher than dew point in the temperature of the evaporator detected
During temperature, compressor frequency can be improved, so that evaporator temperature is reduced, moisture removal is improved.
In order to realize above-described embodiment, the invention also provides a kind of control device of frequency conversion dehumidifier.
Fig. 3 is the structural representation of the control device of frequency conversion dehumidifier according to an embodiment of the invention.Need explanation
, the control device of the frequency conversion dehumidifier of the embodiment of the present invention can be applied on dehumidifier, and the dehumidifier is useful in low in certain
Run under warm environment.
As shown in figure 3, the control device of the frequency conversion dehumidifier can include：First control module 10, detection module 20, meter
Calculate module 30, the first judge module 40, the second judge module 50 and the second control module 60.
Specifically, the first control module 10 can be used for control dehumidifier to be run with preset state.
Detection module 20 is available for evaporator in environment dry-bulb temperature, relative humidity and dehumidifier in detection dehumidifier
Temperature.More specifically, detection module 20 environment dry-bulb temperature t in dehumidifier can be detected by corresponding sensor respectively, it is relative
The temperature T2 of evaporator in humidity RH and dehumidifier.
Computing module 30 can be used for according to environment dry-bulb temperature and relative humidity calculation dew-point temperature.More specifically, calculating
Module 30 can substitute into the environment dry-bulb temperature t detected and relative humidity RH in dew-point temperature Td calculation formula, to obtain
Dew-point temperature Td.More specifically, in an embodiment of the present invention, mug(unit of measure) Lars formula can be used, by environment dry-bulb temperature t and phase
Humidity RH is substituted into the formula of mug(unit of measure) Lars to calculate dew-point temperature, and using the dew-point temperature as initial value, then repeated
Final dew-point temperature Td is obtained after approaching.
It should be noted that the calculation formula of the dew-point temperature of the embodiment of the present invention is not limited to use mug(unit of measure) Lars formula,
Also formula can be calculated by other dew-point temperatures of the prior art, as long as that is, can according to environment dry-bulb temperature and relative humidity
Dew-point temperature is obtained, the present invention is not specifically limited to the calculation formula of dew-point temperature.
First judge module 40 can be used for judging whether dew-point temperature is more than the first predetermined threshold value.Wherein, the present invention's
In embodiment, the first predetermined threshold value can be 0.
Second judge module 50 can be used for, when the first judge module 40 judges that dew-point temperature is more than the first predetermined threshold value, entering
One step judges whether the temperature of evaporator is less than or equal to the second predetermined threshold value.Wherein, in an embodiment of the present invention, second is pre-
If threshold value can be 0.
Second control module 60 can be used for judging that the temperature of evaporator is pre- less than or equal to second in the second judge module 50
If during threshold value, reducing the compressor frequency of dehumidifier, and increase the rotation speed of fan of dehumidifier.More specifically, when dew-point temperature is big
When temperature in the first predetermined threshold value (such as 0), and evaporator is less than or equal to the second predetermined threshold value (such as 0), the second control module
60 can reduce compressor frequency, and increase rotation speed of fan, the evaporator temperature of dehumidifier can so raise, retard evaporation device
Frosting is to improve moisture removal.And after operation a period of time, detection module 20 can continue environment dry bulb temperature in detection dehumidifier
The temperature of evaporator in degree, relative humidity and dehumidifier, computing module 30 reveals according to environment dry-bulb temperature, relative humidity calculation
Point temperature, the first judge module 40 judged the size of dew-point temperature, the second control module 60 according to judged result to except
Wet machine is controlled accordingly.
Further, in one embodiment of the invention, as shown in figure 4, the control device of the frequency conversion dehumidifier may be used also
Including：Acquisition module 70.Acquisition module 70 can be used for judging that the temperature of evaporator is more than second and preset in the second judge module 50
During threshold value, the temperature difference between the temperature and dew-point temperature of evaporator is obtained.In an embodiment of the present invention, the second control module
60 can also be used to be controlled dehumidifier according to temperature difference.Specifically, in an embodiment of the present invention, the second control module
60 implement process and can be according to what temperature difference was controlled to dehumidifier：Judge whether temperature difference is more than the 3rd default threshold
Value；If temperature difference is more than the 3rd predetermined threshold value, increase the compressor frequency of dehumidifier；If temperature difference is less than or equal to the
Three predetermined threshold values, then control dehumidifier to continue to keep preset state operation.Wherein, in an embodiment of the present invention, the 3rd preset
Threshold value can be 0.Thus, when the temperature of the evaporator detected is higher than dew-point temperature, compressor frequency can be improved, so that evaporation
Device temperature is reduced, and improves moisture removal.
For example, it is assumed that dehumidifier is run in certain under low temperature environment, detection module 20 is examined by corresponding sensor
It is 15 DEG C to survey environment dry-bulb temperature, and relative humidity is 60%, and the temperature of evaporator is -6.5 DEG C, and computing module 30 is dry according to environment
Ball temperature and relative humidity calculation obtain dew-point temperature for 7.37 DEG C.Now dew-point temperature is more than 0, and evaporator temperature is less than 0
(now evaporator meeting frosting), then the second control module 60 reduction compressor frequency, and improve rotation speed of fan can so make
Evaporator temperature is raised, and delays its frosting.Run after a period of time, detection module 20 detects environment dry-bulb temperature for 16 DEG C,
Relative humidity is 50%, and the temperature of evaporator is 1.8 DEG C, and now computing module 30 calculates dew-point temperature for 5.69 DEG C.Now
Dew-point temperature is more than 0, and evaporator temperature is between 0 and dew-point temperature, will not frosting and can be by the hydrogenesis in air, this
When the second control module 60 dehumidifier is not adjusted, continue keep standing state operation.
Further, in one embodiment of the invention, the second control module 60 can be additionally used in the first judge module
40 judge dew-point temperature be less than or equal to the first predetermined threshold value when, control dehumidifier continue keep preset state operation.It can manage
Solution, when dew-point temperature be less than or equal to the first predetermined threshold value (such as 0), when, it is necessary to make evaporator temperature be less than 0 degree, can just remove
Moisture, can maintain dehumidifier to keep preset state operation in this case.
The control device of frequency conversion dehumidifier according to embodiments of the present invention, can by the first control module control dehumidifier with
Preset state is run, evaporator in environment dry-bulb temperature, relative humidity and dehumidifier in detection module detection dehumidifier
Temperature, detection module judges dew point temperature according to environment dry-bulb temperature and relative humidity calculation dew-point temperature, the first judge module
Whether degree is more than the first predetermined threshold value, if so, then the second judge module determines whether whether the temperature of evaporator is less than or waits
In the second predetermined threshold value, if so, then the second control module reduces the compressor frequency of dehumidifier, and increase the blower fan turn of dehumidifier
Speed, so enables to dehumidifier to delay frosting in the case where dew-point temperature is more than 0 DEG C of operating mode, improves the dehumidifying under these operating modes
Amount, and preventing evaporimeter frosting to cross polyvoltine does not cause totally the phenomenon frozen to occur.
In order to realize above-described embodiment, the invention also provides a kind of dehumidifier, including described in any of the above-described embodiment
Frequency conversion dehumidifier control device.It should be noted that the dehumidifier of the embodiment of the present invention is useful in certain under low temperature environment
Operation.
Dehumidifier according to embodiments of the present invention, can control dehumidifier with pre- by the first control module in control device
If state is run, evaporator in environment dry-bulb temperature, relative humidity and dehumidifier in detection module detection dehumidifier
Temperature, detection module judges dew-point temperature according to environment dry-bulb temperature and relative humidity calculation dew-point temperature, the first judge module
Whether the first predetermined threshold value is more than, if so, then the second judge module determines whether whether the temperature of evaporator is less than or equal to
Second predetermined threshold value, if so, then the second control module reduces the compressor frequency of dehumidifier, and increases the blower fan turn of dehumidifier
Speed, so enables to dehumidifier to delay frosting in the case where dew-point temperature is more than 0 DEG C of operating mode, improves the dehumidifying under these operating modes
Amount, and preventing evaporimeter frosting to cross polyvoltine does not cause totally the phenomenon frozen to occur.
In the description of the invention, it is to be understood that term " first ", " second " are only used for describing purpose, and can not
It is interpreted as indicating or implies relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " the
One ", at least one this feature can be expressed or be implicitly included to the feature of " second ".In the description of the invention, " multiple "
It is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification
Close and combine.
Any process described otherwise above or method description are construed as in flow chart or herein, represent to include
Module, fragment or the portion of the code of one or more executable instructions for the step of realizing specific logical function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not be by shown or discussion suitable
Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Represent in flow charts or logic and/or step described otherwise above herein, for example, being considered use
In the order list for the executable instruction for realizing logic function, it may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress for combining these instruction execution systems, device or equipment and using
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wirings
Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, can even is that can be in the paper of printing described program thereon or other are suitable for computer-readable medium
Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, the software that multiple steps or method can in memory and by suitable instruction execution system be performed with storage
Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, the application specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method is carried
Rapid to can be by program to instruct the hardware of correlation to complete, described program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing module, can also
That unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould
Block can both be realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.The integrated module is such as
Fruit is realized using in the form of software function module and as independent production marketing or in use, can also be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..Although having been shown and retouching above
Embodiments of the invention are stated, it is to be understood that above-described embodiment is exemplary, it is impossible to be interpreted as the limit to the present invention
System, one of ordinary skill in the art can be changed to above-described embodiment, change, replace and become within the scope of the invention
Type.
Claims (11)
1. a kind of control method of frequency conversion dehumidifier, it is characterised in that comprise the following steps：
S1, control dehumidifier is run with preset state；
S2, detects the temperature of evaporator in environment dry-bulb temperature, relative humidity and the dehumidifier in the dehumidifier；
S3, according to the environment dry-bulb temperature and the relative humidity calculation dew-point temperature；
S4, judges whether the dew-point temperature is more than the first predetermined threshold value；
S5, if the dew-point temperature be more than first predetermined threshold value, determine whether the evaporator temperature whether
Less than or equal to the second predetermined threshold value, wherein, first predetermined threshold value and the second predetermined threshold value are 0；And
S6, if the temperature of the evaporator is less than or equal to second predetermined threshold value, reduces the compression of the dehumidifier
Unit frequency, and increase the rotation speed of fan of the dehumidifier, and after operation preset time, continue executing with the step S2.
2. the control method of frequency conversion dehumidifier as claimed in claim 1, it is characterised in that also include：
S7, if the temperature of the evaporator is more than second predetermined threshold value, obtain the temperature of the evaporator with it is described
Temperature difference between dew-point temperature；
S8, is controlled according to the temperature difference to the dehumidifier.
3. the control method of frequency conversion dehumidifier as claimed in claim 2, it is characterised in that removed according to the temperature difference to described
Wet machine is controlled, and is specifically included：
S81, judges whether the temperature difference is more than the 3rd predetermined threshold value；
S82, if the temperature difference is more than the 3rd predetermined threshold value, increases the compressor frequency of the dehumidifier, and
Run after preset time, continue executing with the step S2；
S83, if the temperature difference is less than or equal to the 3rd predetermined threshold value, controls the dehumidifier to continue to keep described
Preset state is run.
4. the control method of frequency conversion dehumidifier as claimed in claim 1, it is characterised in that also include：
S9, if the dew-point temperature is less than or equal to first predetermined threshold value, controls the dehumidifier to continue to keep institute
State preset state operation.
5. the control method of frequency conversion dehumidifier as claimed in claim 3, it is characterised in that wherein, the 3rd predetermined threshold value
For 0.
6. a kind of control device of frequency conversion dehumidifier, it is characterised in that including：
First control module, for controlling dehumidifier to be run with preset state；
Detection module, for detecting evaporator in environment dry-bulb temperature in the dehumidifier, relative humidity and the dehumidifier
Temperature；
Computing module, for according to the environment dry-bulb temperature and the relative humidity calculation dew-point temperature；
First judge module, for judging whether the dew-point temperature is more than the first predetermined threshold value；
Second judge module, for judging that the dew-point temperature is more than first predetermined threshold value in first judge module
When, determine whether whether the temperature of the evaporator is less than or equal to the second predetermined threshold value, wherein, first predetermined threshold value
It is 0 with the second predetermined threshold value；And
Second control module, for judging that the temperature of the evaporator is less than or equal to described second in second judge module
During predetermined threshold value, the compressor frequency of the dehumidifier is reduced, and increases the rotation speed of fan of the dehumidifier.
7. the control device of frequency conversion dehumidifier as claimed in claim 6, it is characterised in that also include：
Acquisition module, for judging that the temperature of the evaporator is more than second predetermined threshold value in second judge module
When, obtain the temperature difference between the temperature and the dew-point temperature of the evaporator；
Second control module is additionally operable to be controlled the dehumidifier according to the temperature difference.
8. the control device of frequency conversion dehumidifier as claimed in claim 7, it is characterised in that second control module is specifically used
In：
Judge whether the temperature difference is more than the 3rd predetermined threshold value；
If the temperature difference is more than the 3rd predetermined threshold value, increase the compressor frequency of the dehumidifier；
If the temperature difference is less than or equal to the 3rd predetermined threshold value, the dehumidifier is controlled to continue to keep described default
State is run.
9. the control device of frequency conversion dehumidifier as claimed in claim 6, it is characterised in that second control module is additionally operable to
When first judge module judges that the dew-point temperature is less than or equal to first predetermined threshold value, the dehumidifier is controlled
Continue to keep the preset state operation.
10. the control device of frequency conversion dehumidifier as claimed in claim 8, it is characterised in that wherein, the 3rd predetermined threshold value
For 0.
11. a kind of dehumidifier, it is characterised in that including：The control of frequency conversion dehumidifier as any one of claim 6-10
Device processed.
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| CN106020148A (en) * | 2016-05-25 | 2016-10-12 | 江苏利得智能监测科技有限公司 | Novel intelligent frequency conversion dehumidifying system |
| CN106765930A (en) * | 2016-12-13 | 2017-05-31 | 海信（广东）空调有限公司 | Dehumidifier system with adjustable air intake |
| CN106839263B (en) * | 2016-12-20 | 2019-11-26 | 青岛海尔空调器有限总公司 | Air-conditioning and its control method |
| CN107841863B (en) * | 2017-10-17 | 2020-06-19 | 广东美的制冷设备有限公司 | Clothes drying control method, clothes drying control device, dehumidifier and readable storage medium |
| CN108800438A (en) * | 2018-05-24 | 2018-11-13 | 青岛海尔空调器有限总公司 | Air conditioner inhibits frosting control method |
| CN108800437A (en) * | 2018-05-24 | 2018-11-13 | 青岛海尔空调器有限总公司 | Air conditioner inhibits frosting control method |
| CN111386432A (en) * | 2018-10-31 | 2020-07-07 | 友隆电器工业(深圳)有限公司 | Frost-free operation method of dehumidifier and dehumidifier |
| CN109724175A (en) * | 2019-02-20 | 2019-05-07 | 中国人民解放军63921部队 | The energy-saving fresh freeze drying system of low dew-point air supply |
| CN112443946B (en) * | 2019-08-29 | 2022-11-08 | 大金工业株式会社 | Air conditioner and dehumidification control method thereof |
| CN113669804A (en) * | 2020-04-30 | 2021-11-19 | 杭州香谷山科技有限公司 | Dehumidifier control method and industrial intelligent dehumidification system |
| CN111596575B (en) * | 2020-05-25 | 2022-09-30 | 合肥天鹅制冷科技有限公司 | Condensation water taking control method for evaporator of all-working-condition air water making machine |
| CN112902407B (en) * | 2021-01-28 | 2022-04-22 | 四川长虹空调有限公司 | Method for controlling operation frequency of variable frequency air conditioner through outdoor humidity |
| CN113847658B (en) * | 2021-10-22 | 2022-09-16 | 海信（广东）空调有限公司 | Dehumidifier and control method thereof |
| CN114087719B (en) * | 2021-11-09 | 2022-12-23 | 珠海格力电器股份有限公司 | Control method and control device for variable-frequency dehumidifier, storage medium and variable-frequency dehumidifier |
| CN114777293B (en) * | 2022-03-21 | 2024-05-24 | 青岛海尔空调器有限总公司 | Method and device for controlling variable frequency dehumidifier, electronic equipment and storage medium |
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