WO2011069870A1 - Laundry processing appliance having drying function and control method thereof - Google Patents
Laundry processing appliance having drying function and control method thereof Download PDFInfo
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- WO2011069870A1 WO2011069870A1 PCT/EP2010/068641 EP2010068641W WO2011069870A1 WO 2011069870 A1 WO2011069870 A1 WO 2011069870A1 EP 2010068641 W EP2010068641 W EP 2010068641W WO 2011069870 A1 WO2011069870 A1 WO 2011069870A1
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- cooling water
- temperature
- water
- inlet valve
- laundry
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/24—Condensing arrangements
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/58—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to condensation, e.g. condensate water level
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/36—Condensing arrangements, e.g. control of water injection therefor
Definitions
- the present invention relates to a laundry processing appliance and a control method thereof, in particular, to a laundry processing appliance having a drying function and a control method thereof.
- the process air after cooling and condensation forms low-temperature and dry air, and then the low-temperature and dry air is heated by the heater again to repeat the above procedure, and finally, the moisture in the laundry is all taken away, achieving the objective of drying the laundry to a desired dryness thereby.
- the circulation of the process air is driven through the operation of a blower.
- the water inflow of the cooling water entering the washer- dryer is a constant value at present.
- different stages of a drying process different laundry conditions and different external environments require different quantities of the cooling water to perform the drying process as desired.
- different stages of the drying process require different quantities of the cooling water.
- the process air temperature is low and the evaporation efficiency is low, so that the moisture content of the process air after exchange with the laundry is low, and accordingly a small quantity of the cooling water is required only.
- the process air temperature has been heated to a certain temperature, the evaporation efficiency is increased, and the moisture content of the process air is increased, so that the required quantity of the cooling water is increased.
- the evaporation efficiency is reduced and the moisture content of the process air turns low again, so that the required quantity of the cooling water is reduced.
- the amount and type of laundry affects the required quantity of the cooling water.
- the weight, texture and initial moisture content of the laundry to be dried are different, the evaporation efficiency in the drying procedure is also different, so that the requirement on the condensing quantity is different, and accordingly the quantity of the cooling water is also different.
- the initial temperature of the cooling water also affects the required quantity of the cooling water.
- the cooling water with different temperatures has different capabilities of condensing the vapour in the moist hot air, so the initial temperature of the cooling water also affects the required quantity of the cooling water even if the requirement on the condensing quantity is the same.
- the supply of the cooling water at a constant flow rate fails to inlet water according to actual requirements. Either the supply of the cooling water is excessive, thus causing the waste of water, or the supply of the cooling water is insufficient, so that a desirable drying effect cannot be achieved, or the drying effect can only be achieved by prolonging the drying duration which increases the power consumption.
- a control method of a laundry processing appliance having a drying function comprising: performing a drying operation on laundry by circulating process air; and supplying a cooling water, so as to condense moisture carried in the process air to condensed water, wherein the method further comprises controlling a water inflow of the cooling water according a temperature of the condensed water.
- the water inflow of the cooling water is decreased; and when the temperature of the condensed water is higher than the preset temperature, the water inflow of the cooling water is increased.
- the water inflow of the cooling water is controlled by adjusting an open and close rhythm of an inlet valve of the cooling water.
- the open and close rhythm of the inlet valve of the cooling water is controlled through an open or close duration of the inlet valve.
- the open duration of the inlet valve of the cooling water is modified to the first set open duration, and when the determined open duration of the inlet valve of the cooling water is larger than a second set open duration, the open duration of the inlet valve of the cooling water is the actually determined open duration.
- the first set open duration is 20 seconds
- the second set open duration is 60 seconds.
- Another objective of the present invention is to provide a laundry processing appliance having a drying function, so that when the laundry processing appliance performs a drying operation, the cooling water can be supplied according to actual requirements, and thus the consumption of the cooing water in the drying procedure is reduced while ensuring a desirable drying effect, thereby saving water resources.
- a laundry processing appliance having a drying function, comprising a drying system performing a drying operation on laundry, wherein the drying system comprises an air circulation system for promoting heat exchange between circulating air and the laundry, a condensing system for condensing humidity from the air after the heat exchange, and a cooling water supply system to supply cooling water for the condensing system, wherein control means for controlling the cooling water supply according to a temperature of a condensed water formed by the condensing system and a temperature detecting device for detecting the temperature of the condensed water are provided.
- the temperature detecting device is disposed in a drainage pipe of the laundry processing appliance.
- the laundry processing appliance further includes a preset relation table of the temperature of the condensed water and a parameter of controlling the water inflow of the cooling water.
- the parameter of controlling the water inflow of the cooling water is a time parameter controlling the inlet valve of the cooling water to open or close.
- the beneficial effects of the present invention include those specified as follows.
- the temperature of the cooling water is detected by the temperature detecting device, and then the water inflow of the cooling water is accurately controlled according to the detected temperature, which implements a technology for controlling the water inflow of the cooling water, achieves the water supply according to actual requirements, and technically optimizes the water-cooling drying technology, thereby saving water resources and reducing the power consumption of the appliance while ensuring a desirable drying effect of the appliance.
- the embodiments described are merely preferred embodiments of the present invention, and the present invention may also have other embodiments, for example, the present invention is also applicable to a laundry processing appliance having a drying function that uses a mixture of air and water or uses air for condensation. It should be understood by persons of ordinary skill in the art that any equivalent modification made based on the teachings of the present invention shall fall within the scope of the present invention as defined by the appended claims.
- FIG. 1 is a schematic system view of a laundry processing appliance having a drying function according to an embodiment of the present invention
- FIG. 2 is a schematic view of a laundry processing appliance having a drying function according to an embodiment of the present invention.
- FIG. 3 is a flow chart of a control method of the laundry processing appliance shown in FIG. 2.
- a laundry processing appliance having a drying function 1 includes a drying system 2 performing a drying operation on laundry.
- the drying system 2 includes an air heating and circulation system 3 for heating air and promoting heat exchange between the air and the laundry, and a condensing system 4 for condensing the air after the heat exchange.
- the laundry processing appliance 1 further includes a cooling water supply system 5 controlled according to a temperature of a condensed water formed by the condensing system 4 to supply a cooling water for the condensing system 4.
- the laundry processing appliance 1 having a drying function according to the present embodiment may be a washer-dryer, or a dryer only having the drying function. Referring to FIGs.
- the air heating and circulation system 3 includes a drum 6 capable of rotating at a high rate about a horizontal shaft or a rotating shaft inclined at an angle when driven by an electric motor, a tub 7 receiving the drum 6, a heating pipe component 8 disposed on the top of the tub 7, and a blower device 9 for promoting the air circulation.
- a heating device 10 for heating the process air is disposed in the heating pipe component 8, and the condensing system 4 includes a condensing device 1 1 disposed behind the tub 7.
- One end of the heating pipe component 8 is connected to the tub 7, and the other end is connected to the condensing device 1 1 through the blower device 9.
- the heating pipe component 8, the tub 7, the drum 6, the condensing device 1 1 and the blower device 9 form a closed air circulation loop.
- the cooling water supply system 5 is disposed between the condensing device 1 1 and the blower device 9, so that the cooling water is supplied to the condensing system 4, and the cooling water supply system 5 is controlled by opening and closing an inlet valve 12 in a given rhythm.
- the process air is first heated by the heating device 10 to form hot dry air with a high temperature, and then is supplied to the drum 6 to fully contact and exchange heat with the wet laundry put by a user ito the drum 6 so as to form hot air with high moisture and low temperature.
- the process air is fully mingled with the laundry, and thus the moisture in the laundry is absorbed by the process air and then is drained into the condensing system 4 through an air vent on the tub 7 for condensation by the condensing device 1 1.
- the hot air with high moisture and low temperature exchanges heat with the cooling water supplied by the cooling water supply system 5 to form hot air with low moisture and low temperature, which is heated again by the heating device 10 under the action of the blower device 9 to enter a next circulation, and the circulation is repeated to dry the moisture carried in the laundry, and finally the drying procedure is achieved.
- a temperature detecting device 14 is disposed on an appropriate position of the corrugated drainage pipe 13. During the execution of the drying program, the temperature detecting device 14 detects a temperature of the condensed water flowing through the corrugated drainage pipe 13, and the temperature of the condensed water to reflect the condensing effect.
- the supply of the cooling water is controlled through the inlet valve 12, when it is required to increase the supply of the cooling water, the inlet valve 12 is opened to inlet the water, and when it is required to reduce the supply of the cooling water, the inlet valve 12 is closed or partly closed.
- a corresponding relation exists between the temperature of the condensed water and the water inflow of the cooling water, and therefore, a corresponding relation table between the temperature of the condensed water and a control rhythm of the inlet valve of the cooling water can be obtained according to experimental results (as shown in FIG. 1 ) and stored in the control means 15 provided in the appliance 1 for interfacing with the user and process control.
- control means 15 directly obtains the control rhythm of the inlet valve 12 from the corresponding relation table according to the temperature of the condensed water detected by the temperature detecting device 14, that is, required open/close duration of the inlet valve 12.
- the open duration of the inlet valve 12 is modified to the first set open duration, that is, the open duration is 20 seconds, and when the determined open duration of the inlet valve 12 is larger than a second set open duration, for example, 60 seconds, the open duration of the inlet valve 12 is the actually determined open duration.
- FIG. 3 illustrates a control method of the laundry processing appliance 1 having a drying function according to the embodiment shown the Figures described above.
- a user selects a certain drying program, it is first judged whether the selected program is a program of timed 15-minute drying, and if yes, the cooling stage is directly entered; otherwise, a timed drying program is entered.
- the temperature detecting device 14 continuously detects the temperature of the condensed water in the drainage pipe 13, and then a corresponding open/close duration of the inlet valve 12 is determined in the relation table between the temperature of the condensed water and the control rhythm of the inlet valve 12 according to the detected temperature value, so as to control the rhythm of the inlet valve 12. The above procedure is repeated until the cooling procedure is entered.
- the water inflow of the cooling water is accurately controlled, thereby avoiding the drawback of low drying efficiency and increased energy consumption due to insufficient supply of the cooling water, and avoiding unnecessary waste of water resources due to excessive supply of the cooling water.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
A laundry processing appliance 1 having a drying function and a control method thereof are provided. The laundry processing appliance 1 comprises a drying system 2 performing a drying operation on laundry, wherein the drying system 2 comprises an air circulation system 3, 9 for promoting heat exchange between circulating air and the laundry, a condensing system 5, 11 for condensing humidity from the air after the heat exchange, and a cooling water supply system 5, 12 to supply cooling water for the condensing system 5, 11. Further, the appliance comprises 1 control means 15 for controlling the cooling water supply system 5, 12 according to a temperature of a condensed water formed by the condensing system 5, 11 and a temperature detecting device 14 for detecting the temperature of the condensed water, thereby ensuring a desirable drying effect and avoiding unnecessary waste of water resources.
Description
LAUNDRY PROCESSING APPLIANCE HAVING DRYING
FUNCTION AND CONTROL METHOD THEREOF
The present invention relates to a laundry processing appliance and a control method thereof, in particular, to a laundry processing appliance having a drying function and a control method thereof.
Most of known laundry processing appliances embodied as washer-dryers or dryers currently available on the market use a water-cooling drying technology. In such appliance a heater is used to heat process air flowing through an appropriate guide. The high- temperature and dry air thus formed enters a rotating drum and exchanges heat with wet laundry put into the drum by a user, so that the moisture carried in the laundry evaporates, and the humidity of the process air after heat exchange with the wet laundry is increased while the temperature thereof is reduced, thus forming moist warm air. The moist warm air enters a condenser and exchanges heat with cooling water supplied from the outside, the moist warm air is cooled to a dew point and the moisture carried in the air is condensed and then drained. The process air after cooling and condensation forms low-temperature and dry air, and then the low-temperature and dry air is heated by the heater again to repeat the above procedure, and finally, the moisture in the laundry is all taken away, achieving the objective of drying the laundry to a desired dryness thereby. The circulation of the process air is driven through the operation of a blower.
In the above drying procedure, the water inflow of the cooling water entering the washer- dryer is a constant value at present. However, it is found through analysis that different stages of a drying process, different laundry conditions and different external environments require different quantities of the cooling water to perform the drying process as desired. First, different stages of the drying process require different quantities of the cooling water. At the beginning stage of drying, as the heater just starts to operate, the process air temperature is low and the evaporation efficiency is low, so that the moisture content of the process air after exchange with the laundry is low, and accordingly a small quantity of the cooling water is required only. When the process air temperature has been heated to a certain temperature, the evaporation efficiency is increased, and the moisture content of the process air is increased, so that the required quantity of the
cooling water is increased. Finally, as the laundry is gradually dried, the evaporation efficiency is reduced and the moisture content of the process air turns low again, so that the required quantity of the cooling water is reduced. Next, the amount and type of laundry affects the required quantity of the cooling water. As the weight, texture and initial moisture content of the laundry to be dried are different, the evaporation efficiency in the drying procedure is also different, so that the requirement on the condensing quantity is different, and accordingly the quantity of the cooling water is also different. In addition, the initial temperature of the cooling water also affects the required quantity of the cooling water. The cooling water with different temperatures has different capabilities of condensing the vapour in the moist hot air, so the initial temperature of the cooling water also affects the required quantity of the cooling water even if the requirement on the condensing quantity is the same.
It can be seen from the above that, the supply of the cooling water at a constant flow rate fails to inlet water according to actual requirements. Either the supply of the cooling water is excessive, thus causing the waste of water, or the supply of the cooling water is insufficient, so that a desirable drying effect cannot be achieved, or the drying effect can only be achieved by prolonging the drying duration which increases the power consumption.
Accordingly, an objective of the present invention is to provide a control method of a laundry processing appliance having a drying function, so as to control the water inflow of the cooling water according to actual requirements, thereby ensuring a desirable drying effect and avoiding the waste of water resources.
The above objective is achieved by a control method of a laundry processing appliance, and a laundry processing appliance, in accordance with the respective independent claim. Preferred embodiments of the method and the appliance are subjects of dependent claims and the subsequent description, with each preferred embodiment of the method corresponding to a preferred embodiment of the appliance and vice versa, even if not specified so herein in detail.
According to the invention, the problem is solved by a control method of a laundry processing appliance having a drying function, comprising: performing a drying operation
on laundry by circulating process air; and supplying a cooling water, so as to condense moisture carried in the process air to condensed water, wherein the method further comprises controlling a water inflow of the cooling water according a temperature of the condensed water.
As a preferred embodiment of the present invention, when the temperature of the condensed water is lower than a preset temperature, the water inflow of the cooling water is decreased; and when the temperature of the condensed water is higher than the preset temperature, the water inflow of the cooling water is increased.
As another preferred embodiment of the present invention, the water inflow of the cooling water is controlled by adjusting an open and close rhythm of an inlet valve of the cooling water. As another preferred embodiment of the present invention, the open and close rhythm of the inlet valve of the cooling water is controlled through an open or close duration of the inlet valve.
As another preferred embodiment of the present invention, the control method further includes: determining the corresponding open or close duration of the inlet valve of the cooling water according to the temperature of the condensed water.
As another preferred embodiment of the present invention, when a determined open duration of the inlet valve of the cooling water is smaller than a first set open duration, the open duration of the inlet valve of the cooling water is modified to the first set open duration, and when the determined open duration of the inlet valve of the cooling water is larger than a second set open duration, the open duration of the inlet valve of the cooling water is the actually determined open duration. As another preferred embodiment of the present invention, the first set open duration is 20 seconds, and the second set open duration is 60 seconds.
Another objective of the present invention is to provide a laundry processing appliance having a drying function, so that when the laundry processing appliance performs a drying
operation, the cooling water can be supplied according to actual requirements, and thus the consumption of the cooing water in the drying procedure is reduced while ensuring a desirable drying effect, thereby saving water resources. The above objective is achieved by a laundry processing appliance having a drying function, comprising a drying system performing a drying operation on laundry, wherein the drying system comprises an air circulation system for promoting heat exchange between circulating air and the laundry, a condensing system for condensing humidity from the air after the heat exchange, and a cooling water supply system to supply cooling water for the condensing system, wherein control means for controlling the cooling water supply according to a temperature of a condensed water formed by the condensing system and a temperature detecting device for detecting the temperature of the condensed water are provided. As another preferred embodiment of the present invention, the temperature detecting device is disposed in a drainage pipe of the laundry processing appliance.
As another preferred embodiment of the present invention, the laundry processing appliance further includes a preset relation table of the temperature of the condensed water and a parameter of controlling the water inflow of the cooling water.
As another preferred embodiment of the present invention, the parameter of controlling the water inflow of the cooling water is a time parameter controlling the inlet valve of the cooling water to open or close.
The beneficial effects of the present invention include those specified as follows. The temperature of the cooling water is detected by the temperature detecting device, and then the water inflow of the cooling water is accurately controlled according to the detected temperature, which implements a technology for controlling the water inflow of the cooling water, achieves the water supply according to actual requirements, and technically optimizes the water-cooling drying technology, thereby saving water resources and reducing the power consumption of the appliance while ensuring a desirable drying effect of the appliance.
It is noted that the embodiments described are merely preferred embodiments of the present invention, and the present invention may also have other embodiments, for example, the present invention is also applicable to a laundry processing appliance having a drying function that uses a mixture of air and water or uses air for condensation. It should be understood by persons of ordinary skill in the art that any equivalent modification made based on the teachings of the present invention shall fall within the scope of the present invention as defined by the appended claims.
Preferred embodiments of the invention are now described in detail with reference to the appended drawing, wherein:
FIG. 1 is a schematic system view of a laundry processing appliance having a drying function according to an embodiment of the present invention;
FIG. 2 is a schematic view of a laundry processing appliance having a drying function according to an embodiment of the present invention; and
FIG. 3 is a flow chart of a control method of the laundry processing appliance shown in FIG. 2.
Referring to FIG. 1 , according to an embodiment of the present invention, a laundry processing appliance having a drying function 1 includes a drying system 2 performing a drying operation on laundry. The drying system 2 includes an air heating and circulation system 3 for heating air and promoting heat exchange between the air and the laundry, and a condensing system 4 for condensing the air after the heat exchange. The laundry processing appliance 1 further includes a cooling water supply system 5 controlled according to a temperature of a condensed water formed by the condensing system 4 to supply a cooling water for the condensing system 4. It is noted that the laundry processing appliance 1 having a drying function according to the present embodiment may be a washer-dryer, or a dryer only having the drying function. Referring to FIGs. 1 and 2, the air heating and circulation system 3 includes a drum 6 capable of rotating at a high rate about a horizontal shaft or a rotating shaft inclined at an angle when driven by an electric motor, a tub 7 receiving the drum 6, a heating pipe component 8 disposed on the top of the tub 7, and a blower device 9 for promoting the air circulation. A heating device 10 for heating the process air is disposed in the heating pipe
component 8, and the condensing system 4 includes a condensing device 1 1 disposed behind the tub 7. One end of the heating pipe component 8 is connected to the tub 7, and the other end is connected to the condensing device 1 1 through the blower device 9. Thus, the heating pipe component 8, the tub 7, the drum 6, the condensing device 1 1 and the blower device 9 form a closed air circulation loop.
In order to supply the required cooling water to the condensing device 1 1 , the cooling water supply system 5 is disposed between the condensing device 1 1 and the blower device 9, so that the cooling water is supplied to the condensing system 4, and the cooling water supply system 5 is controlled by opening and closing an inlet valve 12 in a given rhythm. When a drying program is started, the process air is first heated by the heating device 10 to form hot dry air with a high temperature, and then is supplied to the drum 6 to fully contact and exchange heat with the wet laundry put by a user ito the drum 6 so as to form hot air with high moisture and low temperature. Through the circulation of the process air and the rotation of the drum 6, the process air is fully mingled with the laundry, and thus the moisture in the laundry is absorbed by the process air and then is drained into the condensing system 4 through an air vent on the tub 7 for condensation by the condensing device 1 1. In the condensing system 4, the hot air with high moisture and low temperature exchanges heat with the cooling water supplied by the cooling water supply system 5 to form hot air with low moisture and low temperature, which is heated again by the heating device 10 under the action of the blower device 9 to enter a next circulation, and the circulation is repeated to dry the moisture carried in the laundry, and finally the drying procedure is achieved. The moisture carried in the hot air with low moisture and low temperature is cooled to a dew point to form condensed water under the action of the cooling water, and then the condensed water is drained out from a corrugated drainage pipe 13 out of the appliance 1. In order to accurately control the water inflow of the cooling water, a temperature detecting device 14 is disposed on an appropriate position of the corrugated drainage pipe 13. During the execution of the drying program, the temperature detecting device 14 detects a temperature of the condensed water flowing through the corrugated drainage pipe 13, and the temperature of the condensed water to reflect the condensing effect. The higher the temperature of the condensed water is, the higher the condensing efficiency is, which indicates that the cooling water is fully utilized or is slightly insufficient, and
accordingly the supply of the cooling water may be properly increased; otherwise, the lower the temperature of the condensed water is, the lower the condensing efficiency is, which indicates that the cooling water fails to be fully utilized, and accordingly the supply of the cooling water may be properly reduced.
The supply of the cooling water is controlled through the inlet valve 12, when it is required to increase the supply of the cooling water, the inlet valve 12 is opened to inlet the water, and when it is required to reduce the supply of the cooling water, the inlet valve 12 is closed or partly closed. As a preferred embodiment, a corresponding relation exists between the temperature of the condensed water and the water inflow of the cooling water, and therefore, a corresponding relation table between the temperature of the condensed water and a control rhythm of the inlet valve of the cooling water can be obtained according to experimental results (as shown in FIG. 1 ) and stored in the control means 15 provided in the appliance 1 for interfacing with the user and process control. In this way, during the execution of the drying program, the control means 15 directly obtains the control rhythm of the inlet valve 12 from the corresponding relation table according to the temperature of the condensed water detected by the temperature detecting device 14, that is, required open/close duration of the inlet valve 12. In addition, in order to prevent the inlet valve 12 drive from becoming too hot due to too short close duration of the inlet valve 12, when the determined open duration of the inlet valve 12 is smaller than a first set open duration, for example, 20 seconds, the open duration of the inlet valve 12 is modified to the first set open duration, that is, the open duration is 20 seconds, and when the determined open duration of the inlet valve 12 is larger than a second set open duration, for example, 60 seconds, the open duration of the inlet valve 12 is the actually determined open duration.
FIG. 3 illustrates a control method of the laundry processing appliance 1 having a drying function according to the embodiment shown the Figures described above. As shown in FIG. 3, when a user selects a certain drying program, it is first judged whether the selected program is a program of timed 15-minute drying, and if yes, the cooling stage is directly entered; otherwise, a timed drying program is entered. The temperature detecting device 14 continuously detects the temperature of the condensed water in the drainage pipe 13, and then a corresponding open/close duration of the inlet valve 12 is determined in the relation table between the temperature of the condensed water and the control
rhythm of the inlet valve 12 according to the detected temperature value, so as to control the rhythm of the inlet valve 12. The above procedure is repeated until the cooling procedure is entered. Through the real-time detection of the temperature of the condensed water, the water inflow of the cooling water is accurately controlled, thereby avoiding the drawback of low drying efficiency and increased energy consumption due to insufficient supply of the cooling water, and avoiding unnecessary waste of water resources due to excessive supply of the cooling water.
LIST OF REFERENCE NUMERALS Laundry processing appliance
Drying system
Air heating and circulation system
Condensing system
Cooling water supply system
Drum
Tub
Heating pipe component
Blower device
Heating device
Condensing device
Inlet valve
Drainage pipe
Temperature detecting device
Control means
Claims
A control method of a laundry processing appliance (1 ) having a drying function, comprising: performing a drying operation on laundry by circulating process air; and supplying cooling water, so as to condense moisture carried in the process air to condensed water; characterized in that the method further comprises controlling a water inflow of the cooling water according a temperature of the condensed water.
The control method according to claim 1 , wherein, when the temperature of the condensed water is lower than a preset temperature, the water inflow of the cooling water is decreased; and when the temperature of the condensed water is higher than the preset temperature, the water inflow of the cooling water is increased.
The control method according to one of claims 1 and 2, wherein the water inflow of the cooling water is controlled by adjusting an open and close rhythm of an inlet valve (12) of the cooling water.
The control method according to claim 3, wherein the open and close rhythm of the inlet valve (12) of the cooling water is controlled through an open or close duration of the inlet valve.
The control method according to claim 4, further comprising determining the corresponding open or close duration of the inlet valve (12) of the cooling water according to the temperature of the condensed water.
The control method according to claim 5, wherein when a determined open duration of the inlet valve (12) of the cooling water is smaller than a first set open duration, the open duration of the inlet valve (12) of the cooling water is modified to the first set open duration, and when the determined open duration of the inlet
valve of the cooling water is larger than a second set open duration, the open duration of the inlet valve (12) of the cooling water is the actually determined open duration.
The control method according to claim 6, wherein the first set open duration is 20 seconds, and the second set open duration is 60 seconds.
A laundry processing appliance (1 ) having a drying function, comprising a drying system (2) performing a drying operation on laundry, wherein the drying system (2) comprises an air circulation system (3, 9) for promoting heat exchange between circulating air and the laundry, a condensing system (4, 1 1 ) for condensing humidity from the air after the heat exchange, and a cooling water supply system (5, 12) to supply cooling water for the condensing system, characterized by control means (15) for controlling the cooling water supply according to a temperature of a condensed water formed by the condensing system and a temperature detecting device (14) for detecting the temperature of the condensed water.
The laundry processing appliance (1 ) according to claim 8, wherein the temperature detecting device (14) is disposed in a drainage pipe (13) of the laundry processing appliance (1 ).
The laundry processing appliance (1 ) according to one of claims 8 and 9, further comprising a preset relation table of the temperature of the condensed water and a parameter of controlling the water inflow of the cooling water.
The laundry processing appliance (1 ) according to claim 10, wherein the parameter of controlling the water inflow of the cooling water is a time parameter controlling the inlet valve (12) of the cooling water to open or close.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102591734A CN102094309A (en) | 2009-12-11 | 2009-12-11 | Clothes treatment equipment with drying function and control method thereof |
| CN200910259173.4 | 2009-12-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011069870A1 true WO2011069870A1 (en) | 2011-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2010/068641 Ceased WO2011069870A1 (en) | 2009-12-11 | 2010-12-01 | Laundry processing appliance having drying function and control method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN102094309A (en) |
| WO (1) | WO2011069870A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2844794A4 (en) * | 2012-05-03 | 2015-10-28 | Lg Electronics Inc | LAUNDRY PROCESSING MACHINE AND CONTROL METHOD THEREOF |
| EP2998433A1 (en) * | 2014-09-18 | 2016-03-23 | BSH Hausgeräte GmbH | Clothes dryer and drying method thereof |
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| EP3192912A1 (en) * | 2016-01-14 | 2017-07-19 | BSH Hausgeräte GmbH | Washer-dryer with a cooling water circuit |
| CN107574643B (en) * | 2016-07-05 | 2020-12-25 | 青岛海尔滚筒洗衣机有限公司 | Method for adjusting quantity of condensing medium according to control period of heater |
| CN110453468B (en) * | 2018-05-08 | 2022-01-04 | 青岛海尔洗涤电器有限公司 | Clothes treatment device and control method |
| CN111851020B (en) * | 2019-04-16 | 2023-11-03 | 无锡小天鹅电器有限公司 | Laundry treating apparatus, control method, control device, storage medium, and door assembly |
| CN112301645B (en) * | 2020-07-13 | 2022-10-11 | 湖北美的洗衣机有限公司 | Control method, device and equipment of clothes treatment equipment and storage medium |
| CN112458718B (en) * | 2020-09-04 | 2021-12-21 | 珠海格力电器股份有限公司 | Clothes treatment equipment and drying control method thereof |
| CN115522368B (en) * | 2022-11-03 | 2025-08-19 | 海信冰箱有限公司 | Clothes treatment equipment and drying control method |
| CN116103902B (en) * | 2022-12-29 | 2026-01-20 | Tcl家用电器（合肥）有限公司 | Clothes dryer, control method and control device thereof and storage medium |
| CN117845585B (en) * | 2023-12-20 | 2026-03-24 | 珠海格力电器股份有限公司 | A drying control method for a garment processing device and the garment processing device itself. |
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|---|---|---|---|---|
| DE19522307A1 (en) * | 1995-06-20 | 1997-01-02 | Bosch Siemens Hausgeraete | Washing machine or dishwasher set up for drying |
| EP0829569A2 (en) * | 1996-09-13 | 1998-03-18 | Kabushiki Kaisha Toshiba | Washer-dryer apparatus |
| EP1657341A2 (en) * | 2004-11-12 | 2006-05-17 | LG Electronics Inc. | Method and apparatus for control of drying process in a washing and drying machine |
| EP1698722A1 (en) * | 2005-03-04 | 2006-09-06 | Samsung Electronics Co., Ltd. | Washing machine and suds removal method thereof |
| EP1961853A1 (en) * | 2005-11-17 | 2008-08-27 | Kabushiki Kaisha Toshiba | Clothes dryer |
-
2009
- 2009-12-11 CN CN2009102591734A patent/CN102094309A/en active Pending
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2010
- 2010-12-01 WO PCT/EP2010/068641 patent/WO2011069870A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19522307A1 (en) * | 1995-06-20 | 1997-01-02 | Bosch Siemens Hausgeraete | Washing machine or dishwasher set up for drying |
| EP0829569A2 (en) * | 1996-09-13 | 1998-03-18 | Kabushiki Kaisha Toshiba | Washer-dryer apparatus |
| EP1657341A2 (en) * | 2004-11-12 | 2006-05-17 | LG Electronics Inc. | Method and apparatus for control of drying process in a washing and drying machine |
| EP1698722A1 (en) * | 2005-03-04 | 2006-09-06 | Samsung Electronics Co., Ltd. | Washing machine and suds removal method thereof |
| EP1961853A1 (en) * | 2005-11-17 | 2008-08-27 | Kabushiki Kaisha Toshiba | Clothes dryer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2844794A4 (en) * | 2012-05-03 | 2015-10-28 | Lg Electronics Inc | LAUNDRY PROCESSING MACHINE AND CONTROL METHOD THEREOF |
| EP2998433A1 (en) * | 2014-09-18 | 2016-03-23 | BSH Hausgeräte GmbH | Clothes dryer and drying method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102094309A (en) | 2011-06-15 |
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