EP1662034A1 - Washing / drying machine - Google Patents
Washing / drying machine Download PDFInfo
- Publication number
- EP1662034A1 EP1662034A1 EP05109028A EP05109028A EP1662034A1 EP 1662034 A1 EP1662034 A1 EP 1662034A1 EP 05109028 A EP05109028 A EP 05109028A EP 05109028 A EP05109028 A EP 05109028A EP 1662034 A1 EP1662034 A1 EP 1662034A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drum
- duct
- cooling water
- temperature
- washing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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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
- D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air
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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
- D06F2103/02—Characteristics of laundry or load
- D06F2103/08—Humidity
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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
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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
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
Definitions
- the present invention relates to a washing and/or drying machine comprising a drum, a condensing duct in communication with the drum for the circulation of air therethrough and, a spray means configured to spray coolant within the duct to condense moisture in the air circulating therethrough and a method of controlling such a washing and/or drying machine.
- drum-type washing machines may have various functions such as rinsing, dehydrating/spinning and drying in addition to a standard washing function.
- a conventional drum-type washing machine comprises a drum 1, a blowing fan 2 and a blowing fan duct 3 disposed on the outside of the drum 1, a condensing duct 4 connecting an outlet of the drum 1 to the blowing fan 3, a jetting nozzle 5 mounted internally in an upper part of the condensing duct 4 and a cooling water supply tube 6 connected to the jetting nozzle 5 for supplying cooling water thereto.
- a conventional drum-type washing machine continuously supplies cooling water during the whole drying process so as to increase the condensing efficiency but this has the result of consuming a large amount of cooling water.
- control means configured to control the spray means to spray the coolant intermittently within the duct.
- the washing and/or drying machine preferably includes means to draw air from the drum into the duct and circulate it back into the drum and also preferably includes means to heat air drawn from the drum before it is circulated back into the drum
- a preferred embodiment includes a temperature sensor to measure the temperature of the condensed water within the condensing duct, wherein the control unit is configured to permit intermittent supply of the coolant within the duct until the condensed water reaches a predetermined temperature.
- control unit is configured to permit continuous supply of the coolant within the duct after the condensed water reaches a predetermined temperature and conveniently, the coolant is cooling water.
- a method of the present invention is characterised by the step of spraying coolant intermittently within the duct.
- a preferred method further comprises the steps of measuring the temperature of the condensed water within the condensing duct and, intermittently supplying the coolant within the duct until the condensed water reaches a predetermined temperature.
- the method also comprises the steps of continuously supplying the coolant within the duct after the condensed water reaches a predetermined temperature.
- a washing machine comprising a drum, a condensing duct, which communicates with the drum to condense air which flows in from the drum, a cooling water supplying unit to supply cooling water to the inside of the condensing duct so that the air flowing into the condensing duct from the drum is condensed, and a control unit to control the cooling water supplying unit so that the cooling water is supplied intermittently.
- the washing machine further comprises a temperature sensor to measure a temperature of condensed water condensed inside the condensing duct by the cooling water of the cooling water supplying unit wherein the control unit controls the cooling water supplying unit so that the cooling water is intermittently supplied until a temperature of the condensed water measured by the temperature sensor reaches an established temperature.
- control unit controls the cooling water supplying unit so that the cooling water is continuously supplied, after the temperature of the condensed water measured by the temperature sensor has reached the established temperature.
- the temperature sensor measures a temperature of the condensed water discharged from the condensing duct.
- a drum-type washing machine comprises a square-framed main casing 10, a cylinder type drum 20 installed inside the main casing 10 with a cylinder type washing tank 22 rotatably installed inside the cylinder type drum 20 and having dehydrating/draining holes through a wall face thereof.
- a driving motor 23 is provided below the drum 20 and is operable to rotate the washing tank 22 in either direction to perform washing, rinsing and dehydrating/spin-drying operations.
- a door 24 is installed in front of the main casing 10 opening and closing the main casing 10.
- a water supplying unit is provided above the drum 20 which supplies the water for washing into the drum 20 and dissolves detergent in the supplied water.
- the water supplying unit comprises a water supplying valve 24, a water supplying tube 26 and a detergent dissolving unit 27.
- a drying unit is also provided above the drum 20 to dry the laundry after a dehydrating/spin drying operation has been completed.
- the drying unit comprises a blowing fan 70 and a blowing fan duct 72 mounted on the top of the drum 20, and a discharging duct 80 mounted between the blowing fan duct 72 and an air inlet 21a of the drum 20 communicating them with each other.
- a heater 60 is mounted inside the discharging duct 80 and a condensing duct 30 is mounted between an air outlet 21b of the drum 20 and the blowing fan duct 72 communicating them with each other.
- a cooling water supplying unit 43 is provided to supply cooling water into the condensing duct 30 to condense air which flows into the condensing duct 30 from the inside of the drum 20.
- the cooling water supplying unit 43 comprises a cooling water supplying tube 42 branched from the water supplying valve 25 and a cooling water jetting member 40 for jetting the cooling water from the cooling water supplying tube 42 to the inside of the condensing duct 30.
- air blown through the blowing fan 70 is heated by the heater 60 as it passes through the discharging duct 80 and is then supplied to the inside of the drum 20 through the air inlet 21 a to heat and dry the laundry.
- the air at high temperature and high humidity generated in the course of drying the laundry flows out of the air outlet 21b of the drum 20 and into the inside of the condensing duct 30 and water contained in the high temperature and humidity air is condensed by the cooling water jetted vertically downward through the cooling water jetting member 40.
- An elevation limiting projection 50 and a condensed water collecting projection 51 are provided inside the condensing duct 30 whose shapes and installation positions may be modified in various ways, as necessary.
- a draining unit including a draining tube 28 and a draining pump 29 is provided below the drum 20 so as to drain the water from the drum 20 after a washing cycle has finished.
- the drum type washing machine comprises a temperature sensor 91 for measuring the temperature of the water from the air expelled from the drum 20 and a control unit 90 for controlling the supply of the cooling water dependent upon the temperature of the condensed water measured by the temperature sensor 91.
- the temperature sensor 91 is provided in a lower portion of the condensing duct 30 so as to measure the temperature of the condensed water as it is discharged to a discharging unit (not shown) from the bottom of the condensing duct 30.
- a reference or "established” temperature is stored in the control unit 90 against which a temperature measured by the temperature sensor 91 is to be compared.
- the reference temperature is represented by the highest temperature of the condensed water depicted in Figure 6.
- the control unit 90 controls the cooling water supplying unit 43 so that the cooling water is supplied intermittently until the temperature measured by the temperature sensor 91 reaches the reference temperature and also controls the cooling water supplying unit 43 so that supply of the cooling water is continued after the temperature measured by the temperature sensor 91 has reached the reference temperature.
- the high temperature and high humidity air generated in the course of drying the laundry flows into the condensing duct 30 through the air outlet 21b of the drum 20 and is drawn through the condensing duct 30 into the blowing fan duct 72.
- the cooling water is intermittently supplied through the cooling water supplying unit 43 as controlled by the control unit 90 at operation S1.
- control unit 90 controls the cooling water supplying unit 43 so that intermittent supply of the cooling water can continue until the temperature of the condensed water measured by the temperature sensor 91 reaches the reference temperature (see region A).
- condensation forms inside the condensing duct 30 even during intermittent supply of the cooling water shown in region A of Figure 6.
- the condensed water rises up within the condensing duct 30 by the air current therein but its elevation is limited by colliding against the elevation limiting projection 50 and forming water drops thereon. Having formed on the elevation limiting projection 50, the water drops are dropped and collected in the condensed water collecting projection 51 and are then scattered and elevated again by the upward air current, and then again collided against the elevation limiting projection 50. This cycle of processes is repeated. Since contact of the air current elevated with water is extended through these processes, condensation occurs within the condensing duct 30 even during the stages of intermittent supply of the cooling water when the cooling water is not being discharged through the jetting member 40.
- the control unit 90 controls the cooling water supplying unit 43 at operation S5 so that the cooling water is supplied continuously instead of intermittently. This causes the temperature of the condensed water to lower as shown in region B of Figure 6.
- control unit 90 ascertains whether the drying operation is completed and if it is ascertained that the drying operation has been completed, the control unit 90 stops supply of the cooling water.
- the temperature of the condensed water increases as the drying time is increased. Accordingly, the temperature of the air returned to the inside of the drum 20 through the condensing duct 30 is also increased, thereby increasing the internal temperature of the drum 20. As the internal temperature of the drum 20 is increased, the efficiency of vaporising the water in the laundry can be improved and the drying time can be shortened. In addition, the amount of the cooling water consumed can be reduced.
- the present invention has been applied to the condensing duct 30 as illustrated in Figure 3.
- the present invention is not limited to this embodiment, but can be applied to various types of condensing ducts.
- the present invention may also be applied to a condensing duct 130 as illustrated in Figure 7.
- the condensing duct 130 illustrated in Figure 7 comprises an air inlet 132 through which air flows from the drum, a condensing unit 134 through which the air flowing through the air inlet 132 passes, and an air outlet 136 through which the air having passed through the condensing unit 134 is discharged.
- the present invention has been described with reference to a drum-type washing machine but can also be applied to a drying machine.
- the amount of cooling water consumed can be reduced, the laundry drying efficiency can be improved and the laundry drying time can be shortened.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
Description
- The present invention relates to a washing and/or drying machine comprising a drum, a condensing duct in communication with the drum for the circulation of air therethrough and, a spray means configured to spray coolant within the duct to condense moisture in the air circulating therethrough and a method of controlling such a washing and/or drying machine.
- Known drum-type washing machines may have various functions such as rinsing, dehydrating/spinning and drying in addition to a standard washing function.
- When a drying function of a drum-type washing machine is performed, heated air is supplied to the inside of a drum to heat the laundry therein and the resulting air at high temperature and high humidity within the drum undergoes a condensing process to enhance the drying efficiency of the washing machine and its drying process.
- As illustrated in Figure 1, a conventional drum-type washing machine comprises a
drum 1, a blowing fan 2 and a blowingfan duct 3 disposed on the outside of thedrum 1, a condensing duct 4 connecting an outlet of thedrum 1 to the blowingfan 3, ajetting nozzle 5 mounted internally in an upper part of the condensing duct 4 and a coolingwater supply tube 6 connected to thejetting nozzle 5 for supplying cooling water thereto. - In operation of the above-described washing machine, air at high temperature and high humidity resulting from a drying process is drawn into the condensing duct 4 through an
air outlet 1a in the lower side of thedrum 1. The air then encounters cooling water jetted vertically downward within the condensing duct 4 by thejetting nozzle 5 as it flows upwards towards the blowingfan duct 3 thereby condensing the water contained in the air. - A conventional drum-type washing machine continuously supplies cooling water during the whole drying process so as to increase the condensing efficiency but this has the result of consuming a large amount of cooling water.
- Therefore, there is a need for a drum type washing machine capable of reducing the amount of cooling water consumed whilst also maintaining an increased drying efficiency and short drying time.
- Accordingly, the present invention is characterised by control means configured to control the spray means to spray the coolant intermittently within the duct.
- The washing and/or drying machine preferably includes means to draw air from the drum into the duct and circulate it back into the drum and also preferably includes means to heat air drawn from the drum before it is circulated back into the drum
- A preferred embodiment includes a temperature sensor to measure the temperature of the condensed water within the condensing duct, wherein the control unit is configured to permit intermittent supply of the coolant within the duct until the condensed water reaches a predetermined temperature.
- Preferably, the control unit is configured to permit continuous supply of the coolant within the duct after the condensed water reaches a predetermined temperature and conveniently, the coolant is cooling water.
- A method of the present invention is characterised by the step of spraying coolant intermittently within the duct.
- A preferred method further comprises the steps of measuring the temperature of the condensed water within the condensing duct and, intermittently supplying the coolant within the duct until the condensed water reaches a predetermined temperature.
- Preferably, the method also comprises the steps of continuously supplying the coolant within the duct after the condensed water reaches a predetermined temperature.
- The foregoing and/or other aspects of the present invention can be achieved by providing a washing machine comprising a drum, a condensing duct, which communicates with the drum to condense air which flows in from the drum, a cooling water supplying unit to supply cooling water to the inside of the condensing duct so that the air flowing into the condensing duct from the drum is condensed, and a control unit to control the cooling water supplying unit so that the cooling water is supplied intermittently.
- According to an aspect of the present invention, the washing machine further comprises a temperature sensor to measure a temperature of condensed water condensed inside the condensing duct by the cooling water of the cooling water supplying unit wherein the control unit controls the cooling water supplying unit so that the cooling water is intermittently supplied until a temperature of the condensed water measured by the temperature sensor reaches an established temperature.
- According to an aspect of the present invention, the control unit controls the cooling water supplying unit so that the cooling water is continuously supplied, after the temperature of the condensed water measured by the temperature sensor has reached the established temperature.
- According to an aspect of the present invention, the temperature sensor measures a temperature of the condensed water discharged from the condensing duct.
- Preferred embodiments of the present invention will now be described, by way of example only, with reference to Figures 2 - 7 of the accompanying drawings, in which:
- Figure 1 is a perspective view illustrating a structure of a condensing duct of a conventional drum type machine;
- Figure 2 is a perspective view illustrating a drum type washing machine consistent with the present invention;
- Figure 3 is a sectional view schematically illustrating the drum type washing machine consistent with the present invention;
- Figure 4 is a schematic control block diagram of the drum type washing machine consistent with the present invention;
- Figure 5 is a control flow diagram of the drum type washing machine consistent with the present invention;
- Figure 6 is a graph illustrating temperature of condensed water and a control state of a cooling water supplying unit; and
- Figure 7 is a perspective view of a condensing duct according to another embodiment of the present invention.
- Referring to Figures 2 and 3, a drum-type washing machine according to the present invention comprises a square-framed
main casing 10, acylinder type drum 20 installed inside themain casing 10 with a cylindertype washing tank 22 rotatably installed inside thecylinder type drum 20 and having dehydrating/draining holes through a wall face thereof. A drivingmotor 23 is provided below thedrum 20 and is operable to rotate thewashing tank 22 in either direction to perform washing, rinsing and dehydrating/spin-drying operations. Adoor 24 is installed in front of themain casing 10 opening and closing themain casing 10. - A water supplying unit is provided above the
drum 20 which supplies the water for washing into thedrum 20 and dissolves detergent in the supplied water. The water supplying unit comprises awater supplying valve 24, awater supplying tube 26 and adetergent dissolving unit 27. - A drying unit is also provided above the
drum 20 to dry the laundry after a dehydrating/spin drying operation has been completed. The drying unit comprises a blowingfan 70 and a blowingfan duct 72 mounted on the top of thedrum 20, and adischarging duct 80 mounted between the blowingfan duct 72 and anair inlet 21a of thedrum 20 communicating them with each other. Aheater 60 is mounted inside thedischarging duct 80 and acondensing duct 30 is mounted between anair outlet 21b of thedrum 20 and the blowingfan duct 72 communicating them with each other. A coolingwater supplying unit 43 is provided to supply cooling water into thecondensing duct 30 to condense air which flows into thecondensing duct 30 from the inside of thedrum 20. - The cooling
water supplying unit 43 comprises a coolingwater supplying tube 42 branched from thewater supplying valve 25 and a coolingwater jetting member 40 for jetting the cooling water from the coolingwater supplying tube 42 to the inside of thecondensing duct 30. - In operation, air blown through the blowing
fan 70 is heated by theheater 60 as it passes through thedischarging duct 80 and is then supplied to the inside of thedrum 20 through theair inlet 21 a to heat and dry the laundry. The air at high temperature and high humidity generated in the course of drying the laundry flows out of theair outlet 21b of thedrum 20 and into the inside of thecondensing duct 30 and water contained in the high temperature and humidity air is condensed by the cooling water jetted vertically downward through the coolingwater jetting member 40. - An
elevation limiting projection 50 and a condensedwater collecting projection 51 are provided inside thecondensing duct 30 whose shapes and installation positions may be modified in various ways, as necessary. - A draining unit, including a
draining tube 28 and a drainingpump 29 is provided below thedrum 20 so as to drain the water from thedrum 20 after a washing cycle has finished. - As illustrated in Figure 4, the drum type washing machine according to the present invention comprises a
temperature sensor 91 for measuring the temperature of the water from the air expelled from thedrum 20 and acontrol unit 90 for controlling the supply of the cooling water dependent upon the temperature of the condensed water measured by thetemperature sensor 91. - It is preferable, but not necessary, that the
temperature sensor 91 is provided in a lower portion of thecondensing duct 30 so as to measure the temperature of the condensed water as it is discharged to a discharging unit (not shown) from the bottom of thecondensing duct 30. - A reference or "established" temperature is stored in the
control unit 90 against which a temperature measured by thetemperature sensor 91 is to be compared.
The reference temperature is represented by the highest temperature of the condensed water depicted in Figure 6. - The
control unit 90 controls the coolingwater supplying unit 43 so that the cooling water is supplied intermittently until the temperature measured by thetemperature sensor 91 reaches the reference temperature and also controls the coolingwater supplying unit 43 so that supply of the cooling water is continued after the temperature measured by thetemperature sensor 91 has reached the reference temperature. - A drying operation of the drum type washing machine as described above, will now be described.
- Referring to Figure 3, it can be seen that air blown from the blowing
fan 70 is heated by theheater 60 as it passes through thedischarging duct 80 and is then supplied into the inside of thedrum 20 through theair inlet 21a. Accordingly, the laundry within thedrum 20 is heated and dried. - The high temperature and high humidity air generated in the course of drying the laundry flows into the
condensing duct 30 through theair outlet 21b of thedrum 20 and is drawn through thecondensing duct 30 into the blowingfan duct 72. - When the air passes through the
condensing duct 30, the water contained in the air is condensed by the cooling water supplied through the coolingwater supplying unit 43. Referring to Figure 5, the cooling water is intermittently supplied through the coolingwater supplying unit 43 as controlled by thecontrol unit 90 at operation S1. - As illustrated in Figure 6, the
control unit 90 controls the coolingwater supplying unit 43 so that intermittent supply of the cooling water can continue until the temperature of the condensed water measured by thetemperature sensor 91 reaches the reference temperature (see region A). - It is to be noted that condensation forms inside the
condensing duct 30 even during intermittent supply of the cooling water shown in region A of Figure 6. - The condensed water rises up within the
condensing duct 30 by the air current therein but its elevation is limited by colliding against theelevation limiting projection 50 and forming water drops thereon. Having formed on theelevation limiting projection 50, the water drops are dropped and collected in the condensedwater collecting projection 51 and are then scattered and elevated again by the upward air current, and then again collided against theelevation limiting projection 50. This cycle of processes is repeated. Since contact of the air current elevated with water is extended through these processes, condensation occurs within thecondensing duct 30 even during the stages of intermittent supply of the cooling water when the cooling water is not being discharged through thejetting member 40. - Next, the temperature of the condensed water measured by the
temperature sensor 91 is compared with the reference temperature at operation S3. When the cooling water temperature measured by thetemperature sensor 91 reaches the reference temperature as shown in Figure 6, thecontrol unit 90 controls the coolingwater supplying unit 43 at operation S5 so that the cooling water is supplied continuously instead of intermittently. This causes the temperature of the condensed water to lower as shown in region B of Figure 6. - Thereafter, the
control unit 90 ascertains whether the drying operation is completed and if it is ascertained that the drying operation has been completed, thecontrol unit 90 stops supply of the cooling water. - In the washing machine of the present invention, if the cooling water is supplied to the
condensing duct 30 intermittently, the temperature of the condensed water increases as the drying time is increased. Accordingly, the temperature of the air returned to the inside of thedrum 20 through thecondensing duct 30 is also increased, thereby increasing the internal temperature of thedrum 20. As the internal temperature of thedrum 20 is increased, the efficiency of vaporising the water in the laundry can be improved and the drying time can be shortened. In addition, the amount of the cooling water consumed can be reduced. - In the above-described embodiment, the present invention has been applied to the condensing
duct 30 as illustrated in Figure 3. However, the present invention is not limited to this embodiment, but can be applied to various types of condensing ducts. For example, the present invention may also be applied to a condensingduct 130 as illustrated in Figure 7. - The condensing
duct 130 illustrated in Figure 7 comprises anair inlet 132 through which air flows from the drum, a condensingunit 134 through which the air flowing through theair inlet 132 passes, and anair outlet 136 through which the air having passed through the condensingunit 134 is discharged. - The present invention has been described with reference to a drum-type washing machine but can also be applied to a drying machine.
- As described above, in a washing machine according to the present invention, the amount of cooling water consumed can be reduced, the laundry drying efficiency can be improved and the laundry drying time can be shortened.
- Although a few embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (14)
- A washing and/or drying machine comprising a drum, a condensing duct in communication with the drum for the circulation of air therethrough and, a spray means configured to spray coolant within the duct to condense moisture in the air circulating therethrough, characterised by control means configured to control the spray means to spray the coolant intermittently within the duct.
- A washing and/or drying machine according to claim 1 including means to draw air from the drum into the duct and circulate it back into the drum.
- A washing and/or drying machine according to claim 2 including means to heat air drawn from the drum before it is circulated back into the drum
- A washing and/or drying machine according to any preceding claim including a temperature sensor to measure the temperature of the condensed water within the condensing duct, wherein the control unit is configured to permit intermittent supply of the coolant within the duct until the condensed water reaches a predetermined temperature.
- A washing and/or drying machine according to claim 4 wherein the control unit is configured to permit continuous supply of the coolant within the duct after the condensed water reaches a predetermined temperature.
- A washing and/or drying machine according to any preceding claim wherein the coolant is cooling water.
- A method of controlling a washing and/or drying machine comprising a drum, a condensing duct in communication with the drum for the circulation of air therethrough and, a spray means configured to spray coolant within the duct to condense moisture in the air circulating therethrough, characterised by the step of spraying coolant intermittently within the duct.
- A method of controlling a washing and/or drying machine according to claim 7, further comprising the steps of measuring the temperature of the condensed water within the condensing duct and, intermittently supplying the coolant within the duct until the condensed water reaches a predetermined temperature.
- A method of controlling a washing and/or drying machine according to claim 8, further comprising the steps of continuously supplying the coolant within the duct after the condensed water reaches a predetermined temperature.
- A washing machine comprising a drum, a condensing duct, which communicates with the drum to condense air which flows in from the drum, a cooling water supplying unit to supply cooling water to the inside of the condensing duct so that the air flowing into the condensing duct from the drum is condensed, and a control unit to control the cooling water supplying unit so that the cooling water is supplied intermittently.
- The washing machine as claimed in claim 10 further comprising a temperature sensor to measure a temperature of condensed water condensed inside the condensing duct by the cooling water of the cooling water supplying unit wherein the control unit controls the cooling water supplying unit so that the cooling water is intermittently supplied until a temperature of the condensed water measured by the temperature sensor reaches an established temperature.
- The washing machine as claimed in claim 11 wherein the control unit controls the cooling water supplying unit so that the cooling water is continuously supplied after the temperature of the condensed water measured by the temperature sensor has reached the established temperature.
- The washing machine as claimed in claim 12 wherein the temperature sensor measures a temperature of the condensed water discharged from the condensing duct.
- The washing machine as claimed in claim 11 wherein the temperature sensor measures a temperature of the condensed water discharged from the condensing duct
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020040096831A KR20060057779A (en) | 2004-11-24 | 2004-11-24 | Washing machine |
Publications (2)
Publication Number | Publication Date |
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EP1662034A1 true EP1662034A1 (en) | 2006-05-31 |
EP1662034B1 EP1662034B1 (en) | 2011-11-02 |
Family
ID=35871096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05109028A Expired - Fee Related EP1662034B1 (en) | 2004-11-24 | 2005-09-29 | Washing / drying machine |
Country Status (6)
Country | Link |
---|---|
US (1) | US20060107706A1 (en) |
EP (1) | EP1662034B1 (en) |
JP (1) | JP2006142019A (en) |
KR (1) | KR20060057779A (en) |
CN (1) | CN100547141C (en) |
ES (1) | ES2376884T3 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1752575A1 (en) * | 2005-08-13 | 2007-02-14 | LG Electronics Inc. | Washing-drying machine |
WO2011019207A3 (en) * | 2009-08-11 | 2012-05-10 | 엘지전자 주식회사 | Dryer and control method of the same |
WO2013000784A1 (en) * | 2011-06-27 | 2013-01-03 | Arcelik Anonim Sirketi | Laundry washing and drying machine with air-cooled condenser |
WO2013165109A1 (en) * | 2012-05-03 | 2013-11-07 | Lg Electronics Inc. | Laundry treating machine and control method thereof |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4857081B2 (en) * | 2006-11-08 | 2012-01-18 | 日立アプライアンス株式会社 | Drum type washer / dryer |
KR101586371B1 (en) * | 2013-12-24 | 2016-01-18 | 동부대우전자 주식회사 | Method for controlling drum type washing machine |
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 |
CN106758077B (en) * | 2016-11-30 | 2023-11-10 | 无锡小天鹅电器有限公司 | Condensing device for washing and drying integrated machine and washing and drying integrated machine with condensing device |
CN111519398B (en) * | 2019-02-01 | 2023-09-26 | 宁波吉德电器有限公司 | Drum washing machine and detergent throwing method |
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EP0399406A2 (en) * | 1989-05-20 | 1990-11-28 | Hitachi, Ltd. | Full-automatic washing and drying machine |
EP0763618A2 (en) * | 1995-08-30 | 1997-03-19 | Sharp Kabushiki Kaisha | Drum type drying/washing machine |
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KR100748963B1 (en) * | 2004-11-12 | 2007-08-13 | 엘지전자 주식회사 | Drying control method for washer combined with dryer |
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2004
- 2004-11-24 KR KR1020040096831A patent/KR20060057779A/en not_active Application Discontinuation
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2005
- 2005-09-15 US US11/226,345 patent/US20060107706A1/en not_active Abandoned
- 2005-09-29 EP EP05109028A patent/EP1662034B1/en not_active Expired - Fee Related
- 2005-09-29 ES ES05109028T patent/ES2376884T3/en active Active
- 2005-10-18 CN CNB2005101140857A patent/CN100547141C/en not_active Expired - Fee Related
- 2005-11-15 JP JP2005330382A patent/JP2006142019A/en active Pending
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1752575A1 (en) * | 2005-08-13 | 2007-02-14 | LG Electronics Inc. | Washing-drying machine |
WO2011019207A3 (en) * | 2009-08-11 | 2012-05-10 | 엘지전자 주식회사 | Dryer and control method of the same |
AU2010283087B2 (en) * | 2009-08-11 | 2013-04-18 | Lg Electronics Inc. | Dryer and control method of the same |
WO2013000784A1 (en) * | 2011-06-27 | 2013-01-03 | Arcelik Anonim Sirketi | Laundry washing and drying machine with air-cooled condenser |
CN103649398A (en) * | 2011-06-27 | 2014-03-19 | 阿塞里克股份有限公司 | Laundry washing and drying machine with air-cooled condenser |
WO2013165109A1 (en) * | 2012-05-03 | 2013-11-07 | Lg Electronics Inc. | Laundry treating machine and control method thereof |
EP2844794A4 (en) * | 2012-05-03 | 2015-10-28 | Lg Electronics Inc | Laundry treating machine and control method thereof |
AU2013255199B2 (en) * | 2012-05-03 | 2015-11-26 | Lg Electronics Inc. | Laundry treating machine and control method thereof |
Also Published As
Publication number | Publication date |
---|---|
EP1662034B1 (en) | 2011-11-02 |
JP2006142019A (en) | 2006-06-08 |
CN1779015A (en) | 2006-05-31 |
CN100547141C (en) | 2009-10-07 |
KR20060057779A (en) | 2006-05-29 |
ES2376884T3 (en) | 2012-03-20 |
US20060107706A1 (en) | 2006-05-25 |
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