CN104566786B - The control method of blower fan, device and dehumidifier in dehumidifier - Google Patents
The control method of blower fan, device and dehumidifier in dehumidifier Download PDFInfo
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- CN104566786B CN104566786B CN201410778491.2A CN201410778491A CN104566786B CN 104566786 B CN104566786 B CN 104566786B CN 201410778491 A CN201410778491 A CN 201410778491A CN 104566786 B CN104566786 B CN 104566786B
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- blower fan
- dehumidifier
- rotating speed
- temperature
- pressure
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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
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/40—Pressure, e.g. wind pressure
Abstract
The invention discloses a kind of control method of blower fan in dehumidifier, including：Obtain the condenser temperature of dehumidifier；The pressure value according to corresponding to condenser temperature determines condenser temperature；Obtain the pressure difference value between pressure value and condenser pressure maximum；And the rotating speed of blower fan in dehumidifier is controlled according to pressure difference value.The method of the embodiment of the present invention, the rotating speed of blower fan is controlled by the pressure difference value between the current pressure values and condenser pressure maximum of condenser in dehumidifier, such as the rotating speed of blower fan is raised and lowered, use range of the dehumidifier under hot and humid environment can not only be effectively improved, and enable to dehumidifier effectively to dehumidify in the case of low humidity, effect on moisture extraction is improved, and the reduction of dehumidifier power can be caused, reduce energy loss, so as to improve dehumidifier overall performance.The invention also discloses a kind of control device of blower fan in dehumidifier and a kind of dehumidifier with the control device.
Description
Technical field
The present invention relates to the control method of blower fan in living electric apparatus technical field, more particularly to a kind of dehumidifier, device with
A kind of and dehumidifier with the control device.
Background technology
In correlation technique, the control method of dehumidifier is usually：With setting under continuous dehumidifying pattern, general running environment
Rotation speed of fan is run.But when environment temperature rise or larger humidity, if being set as blower fan slow-speed of revolution operation dehumidifying,
Not only condensing pressure is higher, and the speed that dehumidifies is slower, causes the easy stop jumping of complete machine or efficiency to reduce；When ambient humidity be down to it is very low
When, dew-point temperature is also very low, if the high rotating speed operation of blower fan, will cause evaporating temperature can not be dehumidified higher than dew-point temperature problem,
So as to cause the reduction of dehumidifier overall performance.
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, control method of first purpose of the present invention in the blower fan in a kind of dehumidifier is proposed.This method is not only
Use range of the dehumidifier under hot and humid environment can be effectively improved, and dehumidifier is enabled in the case of low humidity
Effectively dehumidifying, effect on moisture extraction is improved, and the reduction of dehumidifier power can be caused, reduce energy loss, it is whole so as to improve dehumidifier
Body performance.
Control device of the second object of the present invention in the blower fan in a kind of dehumidifier is proposed.
Third object of the present invention is to propose a kind of dehumidifier.
To achieve these goals, in the dehumidifier of first aspect present invention embodiment blower fan control method, including：Obtain
Take the condenser temperature of dehumidifier；The pressure value according to corresponding to the condenser temperature determines the condenser temperature；Obtain institute
State the pressure difference value between pressure value and the condenser pressure maximum；And according to the pressure difference value to the dehumidifier
The rotating speed of middle blower fan is controlled.
The control method of blower fan in dehumidifier according to embodiments of the present invention, the condenser temperature of dehumidifier can be first obtained,
Afterwards can according to corresponding to condenser temperature determines condenser temperature pressure value, and obtain pressure value and condenser pressure maximum
Between pressure difference value, and the rotating speed of blower fan in dehumidifier is controlled according to the pressure difference value, i.e., by dehumidifier
Pressure difference value between the current pressure values and condenser pressure maximum of condenser is controlled to the rotating speed of blower fan, such as by wind
The rotating speed of machine is raised and lowered, and can not only effectively improve use range of the dehumidifier under hot and humid environment, Er Qie
Enable to dehumidifier effectively to dehumidify in the case of low humidity, improve effect on moisture extraction, and the reduction of dehumidifier power can be caused, reduce
Energy loss, so as to improve dehumidifier overall performance.
According to one embodiment of present invention, it is described that the rotating speed of blower fan in the dehumidifier is entered according to the pressure difference value
Row control specifically includes：If the pressure difference value is less than or equal to first threshold, the rotating speed of the blower fan is determined whether
Whether it has been maximum speed；If it is determined that the rotating speed of the blower fan is not the maximum speed, then the rotating speed of the blower fan is controlled
Improve；If it is determined that the rotating speed of the blower fan is the maximum speed, then the rotating speed of the blower fan is controlled to keep constant.Thus,
By the way that the rotating speed of blower fan is heightened, be advantageous to condenser heat exchange, reduce condensing pressure, accelerate dehumidifying speed.
According to one embodiment of present invention, the control method also includes：If the pressure difference value is more than described the
One threshold value and it is less than or equal to Second Threshold, then controls the rotating speed of the blower fan to keep constant.
According to one embodiment of present invention, the control method also includes：If the pressure difference value is more than described the
Two threshold values, then further obtain evaporator temperature and dry-bulb temperature in current relative humidity and the dehumidifier；According to described
Current relative humidity and the dry-bulb temperature obtain dew-point temperature；And according to the dew-point temperature and the evaporator temperature pair
The rotating speed of the blower fan is controlled.
According to one embodiment of present invention, it is described according to the dew-point temperature and the evaporator temperature to the blower fan
Rotating speed be controlled and specifically include：Obtain the temperature gap between the dew-point temperature and the evaporator temperature；If institute
State temperature gap and be more than the 3rd threshold value, then control the rotating speed of the blower fan to keep constant；If the temperature gap is less than or waited
In the 3rd threshold value, then whether the rotating speed for determining whether the blower fan has been minimum speed；If it is determined that the blower fan
Rotating speed is not the minimum speed, then controls the rotating speed of the blower fan and reduce；And if it is determined that the rotating speed of the blower fan is institute
Minimum speed is stated, then controls the rotating speed of the blower fan to keep constant.Thus, by the way that the rotating speed of blower fan is reduced so that evaporator
Temperature is reduced, and now evaporator easily can be carried out the moisture in air come in by the fan belt in dehumidifier cold
It is solidifying, so dehumidifier power can be caused to substantially reduce, reduce energy loss.
To achieve these goals, in the dehumidifier of second aspect of the present invention embodiment blower fan control device, including：The
One acquisition module, for obtaining the condenser temperature of dehumidifier；Determining module, described in being determined according to the condenser temperature
Pressure value corresponding to condenser temperature；Second acquisition module, for obtaining the pressure value and the condenser pressure maximum
Between pressure difference value；And first control module, for the rotating speed according to the pressure difference value to blower fan in the dehumidifier
It is controlled.
The control device of blower fan in dehumidifier according to embodiments of the present invention, dehumidifier can be obtained by the first acquisition module
Condenser temperature, determining module pressure value according to corresponding to condenser temperature determines condenser temperature, the second acquisition module obtains
Pressure difference value between pressure force value and condenser pressure maximum, the first control module is according to pressure difference value to dehumidifier apoplexy
The rotating speed of machine is controlled, that is, passes through the pressure between the current pressure values and condenser pressure maximum of condenser in dehumidifier
Difference is controlled to the rotating speed of blower fan, and such as the rotating speed of blower fan is raised and lowered, and can not only be effectively improved dehumidifier and be existed
Use range under hot and humid environment, and enable to dehumidifier effectively to dehumidify in the case of low humidity, improve dehumidifying effect
Fruit, and the reduction of dehumidifier power can be caused, reduce energy loss, so as to improve dehumidifier overall performance.
According to one embodiment of present invention, first control module includes：Judging unit, in the pressure differential
When value is less than or equal to the first threshold values, whether the rotating speed for judging the blower fan has been maximum speed；Control unit, for judging
When the rotating speed of the blower fan is not the maximum speed, the rotating speed of the blower fan is controlled to improve；Described control unit is additionally operable to
When the rotating speed for judging the blower fan is the maximum speed, the rotating speed of the blower fan is controlled to keep constant.Thus, by by blower fan
Rotating speed heighten, be advantageous to condenser heat exchange, reduce condensing pressure, accelerate dehumidifying speed.
According to one embodiment of present invention, first control module is additionally operable to：It is more than in the pressure difference value described
First threshold values and when being less than or equal to the second threshold values, controls the rotating speed of the blower fan to keep constant.
According to one embodiment of present invention, the control device also includes：3rd acquisition module, in the pressure
When difference is more than second threshold values, evaporator temperature and dry-bulb temperature in current relative humidity and the dehumidifier are obtained；
4th acquisition module, for obtaining dew-point temperature according to the current relative humidity and the dry-bulb temperature；Second control module,
For being controlled according to the dew-point temperature and the evaporator temperature to the rotating speed of the blower fan.
According to one embodiment of present invention, second control module includes：Acquiring unit, for obtaining the dew point
Temperature gap between temperature and the evaporator temperature；Control unit, for when the temperature gap is more than three threshold values,
The rotating speed of the blower fan is controlled to keep constant；Judging unit, for being less than or equal to the 3rd threshold values in the temperature gap
When, whether the rotating speed for judging the blower fan has been minimum speed；Described control unit is additionally operable to judging the rotating speed of the blower fan
When not being the minimum speed, controlling the rotating speed of the blower fan reduces；Described control unit is additionally operable to judging the blower fan
When rotating speed is the minimum speed, the rotating speed of the blower fan is controlled to keep constant.Thus, by the way that the rotating speed of blower fan is reduced, make
Obtaining evaporator temperature reduces, the moisture in air that now evaporator will easily can be come in by the fan belt in dehumidifier
Condensed, so dehumidifier power can be caused to substantially reduce, reduce energy loss.
To achieve these goals, the dehumidifier of third aspect present invention embodiment, including second aspect embodiment are removed
The control device of blower fan in wet device.
Dehumidifier according to embodiments of the present invention, the cold of dehumidifier can be obtained by the first acquisition module in control device
Condenser temperature, determining module pressure value according to corresponding to condenser temperature determines condenser temperature, the second acquisition module obtain pressure
Pressure difference value between force value and condenser pressure maximum, the first control module is according to pressure difference value to blower fan in dehumidifier
Rotating speed is controlled, that is, passes through the pressure difference value between the current pressure values and condenser pressure maximum of condenser in dehumidifier
The rotating speed of blower fan is controlled, such as the rotating speed of blower fan be raised and lowered, dehumidifier can not only be effectively improved in high temperature
Use range under high humidity environment, and enable to dehumidifier effectively to dehumidify in the case of low humidity, effect on moisture extraction is improved, and
The reduction of dehumidifier power can be caused, reduce energy loss, so as to improve dehumidifier overall performance.
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 it is readily appreciated that, wherein,
Fig. 1 is the flow chart of the control method of blower fan in dehumidifier according to an embodiment of the invention；
Fig. 2 is the flow chart of the control method of blower fan in dehumidifier in accordance with another embodiment of the present invention；
Fig. 3 is the structural representation of the control device of blower fan in dehumidifier according to an embodiment of the invention；
Fig. 4 is the structural representation of the first control module according to an embodiment of the invention；
Fig. 5 is the structural representation of the control device of blower fan in the dehumidifier according to another embodiment of the invention；And
Fig. 6 is the structural representation of the second control module according to an embodiment of the invention.
Reference：
First acquisition module 10, determining module 20, the second acquisition module 30, the first control module 40, the 3rd acquisition module
50th, the 4th acquisition module 60, the second control module 70, judging unit 41, control unit 42, acquiring unit 71, control unit 72
With judging unit 73.
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 is not considered as limiting the invention.
Below with reference to the accompanying drawings the control method of blower fan in the dehumidifier of the embodiment of the present invention, device are described and there is the control
The dehumidifier of device.
Fig. 1 is the flow chart of the control method of blower fan in dehumidifier according to an embodiment of the invention.As shown in figure 1,
The control method of blower fan can include in the dehumidifier：
S101, obtain the condenser temperature of dehumidifier.
Specifically, after dehumidifier runs certain time (such as 5 minutes) under continuous dehumidifying pattern, dehumidifying can be obtained
The condenser temperature of device, i.e. condensation temperature.
S102, the pressure value according to corresponding to condenser temperature determines condenser temperature.
Calculated for example, condenser temperature can be substituted into absolute pressure in formula, obtain pressure value corresponding to condenser temperature.
Wherein, in an embodiment of the present invention, absolute pressure, which calculates formula, to be：
P=8.31* (t+273) * n* (t+1)/60/1000000 (1)
Wherein, P is pressure value, and its unit is MPa, and P is absolute pressure, and t is condenser temperature, its unit for DEG C, n is cold
Matchmaker's coefficient.
It should be noted that it is an example that absolute pressure in this step, which calculates formula, however it is not limited to above-mentioned
Absolute pressure calculates formula, it should be understood that can also calculate pressure corresponding to condenser temperature by other calculation of pressure formula
Value, as long as the pressure value that is, according to corresponding to condenser temperature can obtain condenser temperature, the present invention is to condenser temperature
The calculation formula of corresponding pressure value is not specifically limited.
S103, obtain the pressure difference value between pressure value and condenser pressure maximum.
It should be noted that in an embodiment of the present invention, condenser pressure maximum can be it is set in advance, can basis
The different model of dehumidifier sets different condenser pressure maximums.Wherein, condenser pressure maximum can be regarded as condensing
The maximum pressure that device can have.
Specifically, pressure value corresponding to condenser temperature can be subtracted with above-mentioned condenser pressure maximum set in advance,
Obtain the pressure difference value between both.
S104, the rotating speed of blower fan in dehumidifier is controlled according to pressure difference value.
Specifically, the rotating speed of blower fan in dehumidifier can be improved or reduced according to pressure difference value obtained above or
Keep constant control.
Specifically, in an embodiment of the present invention, can be further if pressure difference value is less than or equal to the first threshold values
Whether the rotating speed for judging blower fan has been maximum speed.If it is determined that the rotating speed of blower fan is not maximum speed, then blower fan is can control
Rotating speed improves；If it is determined that the rotating speed of blower fan is maximum speed, then the rotating speed of blower fan can control to keep constant.Wherein, in this hair
In bright embodiment, the first threshold values can be set in advance, and the first different valves can be set according to the different type of dehumidifier
Value.Thus, by the way that the rotating speed of blower fan is heightened, be advantageous to condenser heat exchange, reduce condensing pressure, accelerate dehumidifying speed.
Further, in one embodiment of the invention, the control method of blower fan may also include in the dehumidifier：If
Pressure difference value is more than the first threshold values and is less than or equal to the second threshold values, then can control the rotating speed of blower fan to keep constant.It is appreciated that
In an embodiment of the present invention, the first threshold values is less than the second threshold values.Specifically, when pressure difference value be more than the first threshold values and be less than or
It during equal to the second threshold values, can control dehumidifier to maintain former setting state constant, that is, control the rotating speed of blower fan to keep constant.
Further, in one embodiment of the invention, the control method of blower fan may also include in the dehumidifier：If
Pressure difference value is more than the second threshold values, then can further obtain evaporator temperature and dry bulb temperature in current relative humidity and dehumidifier
Degree, and dew-point temperature is obtained according to current relative humidity and dry-bulb temperature, and according to dew-point temperature and evaporator temperature to blower fan
Rotating speed be controlled.For example, in an embodiment of the present invention, current relative humidity and dry-bulb temperature can be substituted into dew point
Temperature computation formula obtains dew-point temperature.Wherein, dew-point temperature, which calculates formula, to be：
Td=b/ [a/log (e/6.11) -1] (2)
E=f*Es (3)
Es=E0*10[a*T/(b+T)] (4)
Wherein, Td is the dew-point temperature of air, and e is the water vapor pressure of air, and its unit is hpa, and a, b are respectively parameter,
For the water surface (0 DEG C of t ＞), a=7.5, b=237.3, for ice face (t≤0 DEG C), a=9.5, b=265.5, f is current relative
Humidity, Es be air Saturated water vapor pressure, E0Saturated water vapor pressure when for air themperature being 0 DEG C, takes E0=6.11hpa, T
For dry-bulb temperature.
Specifically, in an embodiment of the present invention, the rotating speed of blower fan is carried out according to dew-point temperature and evaporator temperature
Control may particularly include following steps：Obtain the temperature gap between dew-point temperature and evaporator temperature.If temperature gap is big
In the 3rd threshold values, then the rotating speed of blower fan can control to keep constant；If temperature gap is less than or equal to the 3rd threshold values, one can be entered
Step judges whether the rotating speed of blower fan has been minimum speed.If it is determined that the rotating speed of blower fan is not minimum speed, then blower fan is can control
Rotating speed reduce；If it is determined that the rotating speed of blower fan is minimum speed, then the rotating speed of blower fan can control to keep constant.Wherein, at this
In the embodiment of invention, the 3rd threshold values can be set in advance, can set different first according to the different type of dehumidifier
Threshold values.
More specifically, the temperature gap between dew-point temperature and the temperature of evaporator can be first calculated, i.e., by dew-point temperature pair
The temperature value answered subtracts temperature value corresponding to the temperature of evaporator, obtains the temperature gap between both, afterwards can be by the temperature
Degree difference is compared with the 3rd threshold values.If the temperature gap is more than the 3rd threshold values, dehumidifier can control to maintain former setting
State is constant, that is, controls the rotating speed of blower fan to keep constant；If the temperature gap is less than or equal to the 3rd threshold values, can first judge
Whether the current rotating speed of blower fan has been minimum speed, if it is not, then the rotating speed of controllable blower fan reduces, if it is, controllable
Blower fan maintains current minimum speed to keep constant in dehumidifier processed.Thus, by the way that the rotating speed of blower fan is reduced so that evaporator
Temperature is reduced, and now evaporator easily can be carried out the moisture in air come in by the fan belt in dehumidifier cold
It is solidifying, so dehumidifier power can be caused to substantially reduce, reduce energy loss.
The control method of blower fan in dehumidifier according to embodiments of the present invention, the condenser temperature of dehumidifier can be first obtained,
Afterwards can according to corresponding to condenser temperature determines condenser temperature pressure value, and obtain pressure value and condenser pressure maximum
Between pressure difference value, and the rotating speed of blower fan in dehumidifier is controlled according to the pressure difference value, i.e., by dehumidifier
Pressure difference value between the current pressure values and condenser pressure maximum of condenser is controlled to the rotating speed of blower fan, such as by wind
The rotating speed of machine is raised and lowered, and can not only effectively improve use range of the dehumidifier under hot and humid environment, Er Qie
Enable to dehumidifier effectively to dehumidify in the case of low humidity, improve effect on moisture extraction, and the reduction of dehumidifier power can be caused, reduce
Energy loss, so as to improve dehumidifier overall performance.
In order that the present invention can be become more apparent upon by obtaining those skilled in the art, can illustrate below.
For example, as shown in Fig. 2 after monitoring user's unlatching dehumidifier and selecting continuous dehumidifying mode instruction,
It can start to start dehumidifier and start continuous dehumidifying pattern (S201).Run in the case where ensureing dehumidifier start continuous dehumidifying pattern
After certain time (such as 5 minutes) (S202), obtain condensing pressure maximum Nmax set in advance, and detect in dehumidifier when
Preceding dry-bulb temperature T1, current relative humidity RH, current condensation temperature T3, current evaporator temperature T2 (S203).Afterwards, can calculate
In this prior under condensation temperature T3, pressure value N corresponding to the current condenser temperature T3, and according to current relative humidity RH and work as
Preceding dry-bulb temperature T1 obtains existing dew point temperature t (S204).Then, current pressure values can be subtracted with condensing pressure maximum Nmax
N, the pressure difference value Y between both is obtained, and pressure difference value Y is compared (S205) with the first threshold values, the second threshold values.
Assuming that the first threshold values is 0.3, the second threshold values is 0.5, when judging that pressure difference value Y is less than or equal to the first threshold values, i.e. during Y≤0.3,
Whether the current rotating speed that can first judge blower fan is highest (S206), if it is not, then can raise rotation speed of fan, to reduce condensation pressure
Power (S207), and after the rotating speed rise of blower fan, continue to detect current dry-bulb temperature T1, current relative humidity RH, current cold
Solidifying temperature T3, current evaporator temperature T2, and pressure value N corresponding to current condensation temperature T3 is calculated, and calculate condensing pressure most
Pressure difference value Y greatly between value Nmax and current pressure values N, is circulated successively.If it is determined that the current rotating speed of blower fan has been highest,
Then can control rotation speed of fan constant (S208), and if detect current pressure difference Y still less than or equal to the first threshold values, i.e. Y≤
0.3, then control dehumidifier to keep current state operation, and above step is repeated afterwards within 5 minutes in operation.
Judge that pressure difference value Y is more than the first threshold values and is less than or equal to the second threshold values as shown in Fig. 2 working as, i.e., 0.3<Y≤
It when 0.5, can control rotation speed of fan constant, that is, control dehumidifier to maintain former setting state constant, and dehumidifier continues to run with
(S208).When judging that pressure difference value Y is more than the second threshold values, i.e. Y>When 0.5, it can first be subtracted with existing dew point temperature t and work as front evaporator
Device temperature T2, the temperature gap X between both is obtained, and temperature gap X is compared (S209) with the 3rd threshold values.It is false
If the 3rd threshold values is 4, when judging that temperature gap X is more than the 3rd threshold values, i.e. X>When 4, it can control the rotating speed of blower fan constant, that is, control
Dehumidifier maintains current operating conditions constant (S208).When judging that temperature gap X is less than or equal to the 3rd threshold values, i.e. during X≤4,
Whether the current rotating speed that can first judge blower fan is minimum speed (S210).If it is, controllable rotation speed of fan is constant (S208)；
If it is not, then rotation speed of fan can be reduced (S211) so that evaporator temperature T2 is reduced, and reduce in rotation speed of fan and then
Continue to detect current dry-bulb temperature T1, current relative humidity RH, current condensation temperature T3, current evaporator temperature T2, and calculate
Pressure value N corresponding to current condensation temperature T3, and calculate the pressure differential between condensing pressure maximum Nmax and current pressure values N
Value Y, is circulated successively.
In order to realize above-described embodiment, the invention also provides a kind of control device of blower fan in dehumidifier.
Fig. 3 is the structural representation of the control device of blower fan in dehumidifier according to an embodiment of the invention.Such as Fig. 3 institutes
Show, the control device of blower fan can include in the dehumidifier：First acquisition module 10, determining module 20, the second acquisition module 30
With the first control module 40.
Specifically, the first acquisition module 10 can be used for the condenser temperature for obtaining dehumidifier.More specifically, when dehumidifier exists
After running certain time (such as 5 minutes) under continuous dehumidifying pattern, the first acquisition module 10 can obtain the condenser of dehumidifier
Temperature, i.e. condensation temperature.
Determining module 20 can be used for the pressure value according to corresponding to condenser temperature determines condenser temperature.For example, determine mould
Condenser temperature can be substituted into absolute pressure and calculated in formula by block 20, obtain pressure value corresponding to condenser temperature.Wherein, at this
In the embodiment of invention, absolute pressure, which calculates formula, to be：
P=8.31* (t+273) * n* (t+1)/60/1000000 (1)
Wherein, P is pressure value, and its unit is MPa, and P is absolute pressure, and t is condenser temperature, its unit for DEG C, n is cold
Matchmaker's coefficient.
Second acquisition module 30 can be used for obtaining the pressure difference value between pressure value and condenser pressure maximum.Need
It is bright, in an embodiment of the present invention, condenser pressure maximum can be it is set in advance, can be according to the different shaped of dehumidifier
Number different condenser pressure maximum of setting.Wherein, condenser pressure maximum, which can be regarded as condenser, can have most
Big pressure.More specifically, the second acquisition module 30 can subtract condenser temperature with above-mentioned condenser pressure maximum set in advance
Pressure value corresponding to degree, obtain the pressure difference value between both.
First control module 40 can be used for being controlled the rotating speed of blower fan in dehumidifier according to pressure difference value.More specifically
Ground, the first control module 40 can be improved or reduced to the rotating speed of blower fan in dehumidifier according to pressure difference value obtained above,
Or keep constant control.
Specifically, in an embodiment of the present invention, as shown in figure 4, first control module 40 can include：Judge single
Member 41 and control unit 42.Specifically, judging unit 41 can be used for when pressure difference value is less than or equal to the first threshold values, judge wind
Whether the rotating speed of machine has been maximum speed.Control unit 42 can be used for, when it is not maximum speed to judge the rotating speed of blower fan, controlling
The rotating speed of blower fan improves.In an embodiment of the present invention, it is that highest turns that control unit 42, which can be additionally used in the rotating speed for judging blower fan,
When fast, the rotating speed of blower fan is controlled to keep constant.Wherein, in an embodiment of the present invention, the first threshold values can be set in advance,
The first different threshold values can be set according to the different type of dehumidifier.Thus, by the way that the rotating speed of blower fan is heightened, be advantageous to condense
Device exchanges heat, and reduces condensing pressure, accelerates dehumidifying speed.
Further, in one embodiment of the invention, the first control module 40 can be additionally used in：It is more than in pressure difference value
First threshold values and when being less than or equal to the second threshold values, controls the rotating speed of blower fan to keep constant.It is appreciated that in the implementation of the present invention
In example, the first threshold values is less than the second threshold values.Specifically, when pressure difference value is more than the first threshold values and is less than or equal to the second threshold values
When, the first control module 40 can control dehumidifier to maintain former setting state constant, that is, control the rotating speed of blower fan to keep constant.
Further, in one embodiment of the invention, as shown in figure 5, the control device of blower fan is also in the dehumidifier
It may include：3rd acquisition module 50, the 4th acquisition module 60 and the second control module 70.Specifically, the 3rd acquisition module 50 can
For when pressure difference value is more than the second threshold values, obtaining evaporator temperature and dry bulb temperature in current relative humidity and dehumidifier
Degree.4th acquisition module 60 can be used for obtaining dew-point temperature according to current relative humidity and dry-bulb temperature.Second control module 70
The rotating speed of blower fan is controlled available for according to dew-point temperature and evaporator temperature.For example, in embodiments of the invention
In, current relative humidity and dry-bulb temperature can be substituted into dew-point temperature and calculate formula acquisition dew-point temperature by the 4th acquisition module 60.
Wherein, dew-point temperature, which calculates formula, to be：
Td=b/ [a/log (e/6.11) -1] (2)
E=f*Es (2)
Es=E0*10[a*T/(b+T)] (4)
Wherein, Td is the dew-point temperature of air, and e is the water vapor pressure of air, and its unit is hpa, and a, b are respectively parameter,
For the water surface (0 DEG C of t ＞), a=7.5, b=237.3, for ice face (t≤0 DEG C), a=9.5, b=265.5, f is current relative
Humidity, Es be air Saturated water vapor pressure, E0Saturated water vapor pressure when for air themperature being 0 DEG C, takes E0=6.11hpa, T
For dry-bulb temperature.
Specifically, it is total in one embodiment of the present of invention, as shown in fig. 6, second control module 70 may include to obtain
Unit 71, control unit 72 and judging unit 73.Specifically, acquiring unit 71 can be used for obtaining dew-point temperature and evaporator temperature
Between temperature gap.Control unit 72 can be used for when temperature gap is more than three threshold values, control the rotating speed of blower fan to keep not
Become.Judging unit 73 can be used for when temperature gap is less than or equal to three threshold values, and whether the rotating speed for judging blower fan has been minimum
Rotating speed.Wherein, in an embodiment of the present invention, the 3rd threshold values can be set in advance, can be according to the different type of dehumidifier
Set the first different threshold values.
In an embodiment of the present invention, control unit 72 can be additionally used in when it is not minimum speed to judge the rotating speed of blower fan,
Controlling the rotating speed of blower fan reduces.Control unit 72 can also be used to, when it is minimum speed to judge the rotating speed of blower fan, control blower fan
Rotating speed keeps constant.
More specifically, acquiring unit 71 can first calculate the temperature gap between dew-point temperature and the temperature of evaporator, will
Temperature value corresponding to dew-point temperature subtracts temperature value corresponding to the temperature of evaporator, obtains the temperature gap between both, it
After the temperature gap can be compared with the 3rd threshold values.If the temperature gap is more than the 3rd threshold values, control unit 72 can
Control dehumidifier to maintain former setting state constant, that is, control the rotating speed of blower fan to keep constant；If the temperature gap is less than or waited
In the 3rd threshold values, then judging unit 73 can first judge whether the current rotating speed of blower fan has been minimum speed, if it is not, then control
Unit 72 can control the rotating speed of blower fan to reduce, if it is, control unit 72 can control blower fan in dehumidifier to maintain currently most
The slow-speed of revolution keeps constant.Thus, by the way that the rotating speed of blower fan is reduced so that evaporator temperature reduces, and now evaporator can be very
Easily the moisture in air come in by the fan belt in dehumidifier is condensed, can so make it that dehumidifier power is big
It is big to reduce, reduce energy loss.
The control device of blower fan in dehumidifier according to embodiments of the present invention, dehumidifier can be obtained by the first acquisition module
Condenser temperature, determining module pressure value according to corresponding to condenser temperature determines condenser temperature, the second acquisition module obtains
Pressure difference value between pressure force value and condenser pressure maximum, the first control module is according to pressure difference value to dehumidifier apoplexy
The rotating speed of machine is controlled, that is, passes through the pressure between the current pressure values and condenser pressure maximum of condenser in dehumidifier
Difference is controlled to the rotating speed of blower fan, and such as the rotating speed of blower fan is raised and lowered, and can not only be effectively improved dehumidifier and be existed
Use range under hot and humid environment, and enable to dehumidifier effectively to dehumidify in the case of low humidity, improve dehumidifying effect
Fruit, and the reduction of dehumidifier power can be caused, reduce energy loss, so as to improve dehumidifier overall performance.
In order to realize above-described embodiment, the invention also provides a kind of dehumidifier, including any of the above-described individual embodiment is removed
The control device of blower fan in wet device.
Dehumidifier according to embodiments of the present invention, the cold of dehumidifier can be obtained by the first acquisition module in control device
Condenser temperature, determining module pressure value according to corresponding to condenser temperature determines condenser temperature, the second acquisition module obtain pressure
Pressure difference value between force value and condenser pressure maximum, the first control module is according to pressure difference value to blower fan in dehumidifier
Rotating speed is controlled, that is, passes through the pressure difference value between the current pressure values and condenser pressure maximum of condenser in dehumidifier
The rotating speed of blower fan is controlled, such as the rotating speed of blower fan be raised and lowered, dehumidifier can not only be effectively improved in high temperature
Use range under high humidity environment, and enable to dehumidifier effectively to dehumidify in the case of low humidity, effect on moisture extraction is improved, and
The reduction of dehumidifier power can be caused, reduce energy loss, so as to improve dehumidifier overall performance.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.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 different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
Any process or method described otherwise above description in flow chart or herein is construed as, and represents to include
Module, fragment or the portion of the code of the executable instruction of one or more the step of being used to realize specific logical function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discuss 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.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, 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 used with reference to these instruction execution systems, device or equipment
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wiring
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, computer-readable medium, which can even is that, to print the paper of described program thereon or other are suitable
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, software that multiple steps or method can be performed in memory and by suitable instruction execution system 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, have suitable combinational logic gate circuit application specific integrated 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 carries
Suddenly it is that by program the hardware of correlation can be instructed 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 present 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, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized 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 have been shown and retouch 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. the control method of blower fan in a kind of dehumidifier, it is characterised in that comprise the following steps：
Obtain the condenser temperature of dehumidifier；
The pressure value according to corresponding to the condenser temperature determines the condenser temperature；
Obtain the pressure difference value between the pressure value and the condenser pressure maximum；And
The rotating speed of blower fan in the dehumidifier is controlled according to the pressure difference value.
2. the control method of blower fan in dehumidifier as claimed in claim 1, it is characterised in that described according to the pressure difference value
The rotating speed of blower fan in the dehumidifier is controlled and specifically included：
If the pressure difference value is less than or equal to first threshold, whether the rotating speed for determining whether the blower fan has been highest
Rotating speed；
If it is determined that the rotating speed of the blower fan is not the maximum speed, then the rotating speed of the blower fan is controlled to improve；
If it is determined that the rotating speed of the blower fan is the maximum speed, then the rotating speed of the blower fan is controlled to keep constant.
3. the control method of blower fan in dehumidifier as claimed in claim 1 or 2, it is characterised in that also include：
If the pressure difference value is more than first threshold and is less than or equal to Second Threshold, the rotating speed of the blower fan is controlled to keep
It is constant.
4. the control method of blower fan in dehumidifier as claimed in claim 3, it is characterised in that also include：
If the pressure difference value is more than the Second Threshold, further obtain in current relative humidity and the dehumidifier
Evaporator temperature and dry-bulb temperature；
Dew-point temperature is obtained according to the current relative humidity and the dry-bulb temperature；And
The rotating speed of the blower fan is controlled according to the dew-point temperature and the evaporator temperature.
5. the control method of blower fan in dehumidifier as claimed in claim 4, it is characterised in that described according to the dew-point temperature
The rotating speed of the blower fan is controlled with the evaporator temperature and specifically included：
Obtain the temperature gap between the dew-point temperature and the evaporator temperature；
If the temperature gap is more than the 3rd threshold value, the rotating speed of the blower fan is controlled to keep constant；
If the temperature gap is less than or equal to the 3rd threshold value, determine whether the blower fan rotating speed whether be
Minimum speed；
If it is determined that the rotating speed of the blower fan is not the minimum speed, then controlling the rotating speed of the blower fan reduces；And
If it is determined that the rotating speed of the blower fan is the minimum speed, then the rotating speed of the blower fan is controlled to keep constant.
A kind of 6. control device of blower fan in dehumidifier, it is characterised in that including：
First acquisition module, for obtaining the condenser temperature of dehumidifier；
Determining module, for pressure value corresponding to determining the condenser temperature according to the condenser temperature；
Second acquisition module, for obtaining the pressure difference value between the pressure value and the condenser pressure maximum；And
First control module, for being controlled according to the pressure difference value to the rotating speed of blower fan in the dehumidifier.
7. the control device of blower fan in dehumidifier as claimed in claim 6, it is characterised in that the first control module bag
Include：
Judging unit, for when the pressure difference value is less than or equal to the first threshold values, whether to judge the rotating speed of the blower fan
It is maximum speed；
Control unit, for when it is not the maximum speed to judge the rotating speed of the blower fan, controlling the rotating speed of the blower fan to carry
It is high；
Described control unit is additionally operable to, when it is the maximum speed to judge the rotating speed of the blower fan, control the rotating speed of the blower fan
Keep constant.
8. the control device of blower fan in dehumidifier as claimed in claims 6 or 7, it is characterised in that first control module
It is additionally operable to：
When the pressure difference value is more than the first threshold values and is less than or equal to the second threshold values, the rotating speed of the blower fan is controlled to keep not
Become.
9. the control device of blower fan in dehumidifier as claimed in claim 8, it is characterised in that also include：
3rd acquisition module, for when the pressure difference value is more than second threshold values, obtaining current relative humidity and institute
State evaporator temperature and dry-bulb temperature in dehumidifier；
4th acquisition module, for obtaining dew-point temperature according to the current relative humidity and the dry-bulb temperature；
Second control module, for being controlled according to the dew-point temperature and the evaporator temperature to the rotating speed of the blower fan
System.
10. the control device of blower fan in dehumidifier as claimed in claim 9, it is characterised in that the second control module bag
Include：
Acquiring unit, for obtaining the temperature gap between the dew-point temperature and the evaporator temperature；
Control unit, the rotating speed for when the temperature gap is more than three threshold values, controlling the blower fan keep constant；
Judging unit, for when the temperature gap is less than or equal to three threshold values, judging the rotating speed of the blower fan to be
No has been minimum speed；
Described control unit is additionally operable to, when it is not the minimum speed to judge the rotating speed of the blower fan, control turning for the blower fan
Prompt drop is low；
Described control unit is additionally operable to, when it is the minimum speed to judge the rotating speed of the blower fan, control the rotating speed of the blower fan
Keep constant.
A kind of 11. dehumidifier, it is characterised in that including：In dehumidifier as any one of claim 6 to 10 blower fan
Control device.
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| CN104896691A (en) * | 2015-06-11 | 2015-09-09 | 美的集团武汉制冷设备有限公司 | Air conditioner and operation control method therefor |
| CN106813356A (en) * | 2015-11-30 | 2017-06-09 | 青岛海尔空调电子有限公司 | A kind of air-conditioning system low-voltage variation method |
| CN105509401B (en) * | 2015-12-15 | 2018-05-22 | 珠海格力电器股份有限公司 | A kind of refrigeration system, refrigerating transport vehicle and Refrigerated Transport control method |
| CN106765930A (en) * | 2016-12-13 | 2017-05-31 | 海信（广东）空调有限公司 | A kind of adjustable dehumidifier system of air inlet |
| CN107514737B (en) * | 2017-07-19 | 2019-12-27 | 广东美的制冷设备有限公司 | Dehumidifier and fault judgment method and device thereof |
| CN114151859B (en) * | 2021-11-22 | 2023-08-04 | 北京小米移动软件有限公司 | Fresh air conditioner indoor unit control method and device and fresh air conditioner indoor unit |
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