EP2898132A1 - A laundry washing and drying machine comprising a condenser - Google Patents

A laundry washing and drying machine comprising a condenser

Info

Publication number
EP2898132A1
EP2898132A1 EP13756503.2A EP13756503A EP2898132A1 EP 2898132 A1 EP2898132 A1 EP 2898132A1 EP 13756503 A EP13756503 A EP 13756503A EP 2898132 A1 EP2898132 A1 EP 2898132A1
Authority
EP
European Patent Office
Prior art keywords
tub
discharge hole
condenser
laundry
drying machine
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
Application number
EP13756503.2A
Other languages
German (de)
French (fr)
Other versions
EP2898132B1 (en
Inventor
Talip Caglar
Dogan Demirhan
Emre Ozturk
Mehmet Ozbek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Arcelik AS
Original Assignee
Arcelik AS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Arcelik AS filed Critical Arcelik AS
Publication of EP2898132A1 publication Critical patent/EP2898132A1/en
Application granted granted Critical
Publication of EP2898132B1 publication Critical patent/EP2898132B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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 
    • 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
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements

Definitions

  • the present invention relates to a laundry washing and drying machine comprising a condenser providing the processing air to be condensed.
  • the laundry In laundry washing and drying machines, the laundry is placed into the drum moving in a tub and the drying process is realized after the washing and spin-drying processes.
  • the processing air dehumidified in a condenser preferably of air-cooled type, is passed over the laundry in the drum by applying a closed air circulation cycle by means of a fan.
  • fibers and lint are formed as the result of laundry rubbing against each other or the drum and accumulate on the condenser by being carried with the drying air.
  • the fibers and lint on the condenser are mixed into the water condensed in the condenser to be sent to the tub by means of a water discharge channel and discharged to the outside environment by means of a discharge pump.
  • the condensate water mixed with the fibers and lint and accumulated in the tub vaporizes by contacting the hot air in the tub before being discharged to the outer environment.
  • the fibers and lint in the vaporized water mix with the processing air to accumulate in the condenser and decrease the drying efficiency.
  • the fibers and lint accumulating in the tub the fibers and lint remaining from the previous drying process stick onto the laundry in the next drying process. For example, dark-colored fibers and lint accumulating on white laundry or light-colored fibers and lint accumulating on dark-colored laundry causes user dissatisfaction.
  • a laundry washer/dryer comprising a condenser, a process air channel and at least one water drain channel that is connected to the tub by being separated from the process air channel and that delivers the condensate water to the tub.
  • the aim of the present invention is the realization of a laundry washing and drying machine wherein the efficiency of the condenser is improved and fibers and lint are prevented from accumulating on the laundry.
  • the laundry washing and drying machine realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a discharge hole situated at the lower side of the tub and providing the water to be discharged at the end of washing – drying processes, a discharge hose, a pump and a condenser activated during the drying process to condense the processing air; and the condensate water separated from the processing air in the condenser is sent towards the vicinity of the discharge hole at the lower side of the tub by means of a water drain channel.
  • the condensate water coming from the condenser is directly filled into the discharge hose serving as a receptacle without accumulating at the bottom of the tub and is discharged to the outside environment from here by means of a pump.
  • one end of the water drain channel is connected to the lower side of the tub, immediately next to the discharge hole.
  • a ball closing the discharge hole and preventing detergent leakage is placed into the discharge hose and the water drain channel is connected to the tub so as to be above the ball closing the discharge hole.
  • a neck extending towards the discharge hole at the lower side of the tub is provided and the lower end of the water drain channel is connected to the neck.
  • the lower end of the water drain channel is directly connected to the discharge hose and the condensate water coming from the condenser fills into the discharge hose without contacting the tub.
  • fibers and lint are prevented from accumulating in the tub and the condensate water vaporizing in the tub with the effect of the hot processing air is prevented from wetting the laundry.
  • Figure 1 – is the schematic view of a laundry washing and drying machine.
  • Figure 2 – is the detailed view of the discharge hole situated at the lower side of the tub and the condensate water drain channel in a laundry washing and drying machine.
  • Figure 3 – is the schematic view of a laundry washing and drying machine in another embodiment of the present invention.
  • the laundry washing and drying machine (1) is horizontal axis and front loading type, and comprises a drum (2) wherein the laundry is placed, a tub (3) wherein the drum (2) moves, a discharge hole (4) and a pump (5) situated at the lower side of the tub (3) and providing the water to be discharged at the end of the washing and drying processes, a discharge hose (6) with one end connected to the discharge hole (4) and the other end to the pump (5), a circulation duct (7) wherein the processing air (PA) circulation, providing the drying of the laundry, is performed in the drying process after the washing process, an preferably air-cooled condenser (8) disposed onto the circulation duct (7) and providing the processing air (PA) to be condensed, a fan (not shown in the figures) that provides circulation of the processing air (PA) in the circulation duct (7), a heater (not shown in the figures) heating the processing air (PA), and an outer air line (not shown in the figures) that provides the condenser (8) to be cooled by means of the air received from
  • the laundry washing and drying machine (1) of the present invention comprises a water drain channel (9) with the upper end connected to the condenser (8) and the lower end to the lower side of the tub (3) in the vicinity of the discharge hole (4) or to the discharge hose (6), that provides the condensate water coming from the condenser (8) to be delivered to the discharge hose (6) before the pump (5) without accumulating in the tub (3).
  • the processing air (PA) passing over the laundry and getting humid is condensed in the condenser (8).
  • the condensate water forming in the condenser (8) is directed with the effect of the processing air (PA) from the condenser (8) outlet towards the vicinity of the discharge hole (4) by means of the water drain channel (9).
  • the discharge hose (6) functions as a receptacle wherein the condensate water coming from the condenser (8) accumulates and the water accumulating in the discharge hose (6) is discharged to the outside by the pump (5) that is intermittently operated during the drying process.
  • the fibers and lint carried from the condenser (8) with the condensate water are prevented from accumulating at the lower side of the tub (3). Furthermore, the fibers and lint are prevented from sticking to the condenser (8) and the laundry by being carried (fluttering) with the processing air (PA) during the drying.
  • the condensate water coming from the condenser (8) during the drying process does not accumulated at the lower side of the tub (3), but is directly delivered to the discharge hose (6) and does not vaporize since it does not contact the hot processing air (PA) in the tub (3). Thus, the dried laundry is prevented from getting wet again.
  • the lower end of the water drain channel (9) is connected to the lower side of the tub (3), immediately next to the discharge hole (4) ( Figure 1). After traversing a short distance, for example a few centimeters between the point where the water drain channel (9) is connected to the tub (3) and the discharge hole (4), the condensate water coming from the water drain channel (9) is delivered to the discharge hose (6) from the discharge hole (4) and discharged to the outside environment by the pump (5).
  • the laundry washing and drying machine (1) comprises a ball (10) that is placed into the discharge hose (6), that closes the discharge hole (4) with the pressure of the water in the waste water pipe (B) at times when the pump (5) is not operated during the washing process and thus prevents detergent leakage during the washing process, and that allows the water to be discharged from the tub (3) by opening the discharge hole (4) when the pump (5) is operated.
  • the lower end of the water drain channel (9) is connected to the tub (3) so as to be above the ball (10) at the position wherein the ball (10) closes the discharge hole (4) ( Figure 1).
  • the water drain channel (9) does not create an obstruction for the ball (10) to perform its normal function and the pressure applied onto the ball (10) by the water in the waste water pipe (B) during the washing process does not drop.
  • the water in the tub (3) is discharged by the pump (5) at the end of the washing process, the ball (10) opens the discharge hole (4) and the condensate water coming from the water drain channel (9) is delivered to the discharge hose (6) through the discharge hole (4).
  • the laundry washing and drying machine (1) comprises a neck (11) extending from the lower side of the tub (3) towards the discharge hole (4) and the lower end of the water drain channel (9) is connected to the neck (11) ( Figure 2).
  • the condensate water coming from the condenser (8) passes through the neck (11) and the discharge hole (4) without contacting the tub (3) and is delivered to the discharge hose (6).
  • the condensate water, fibers and lint are prevented from accumulating at the lower side of the tub (3).
  • the water drain channel (9) is directly connected to the discharge hose (6) between the discharge hole (4) and the pump (5).
  • the lower end of the water drain channel (9) is connected to an inlet port (A) opening into the discharge hose (6) body, immediately under the discharge hole (4) ( Figure 3).
  • the condensate water coming from the condenser (8) fills into the discharge hose (6) through the inlet port (A) without contacting the tub (3) and from here is discharged to the outside environment by means of the pump (5) and the waste water pipe (B).
  • the condensate water, fibers and lint are prevented from accumulating in the tub (3) and moreover, the dried laundry is prevented from getting wet with the vaporized condensate water.
  • the efficiency of the condenser (8) is improved, the fibers and lint are prevented from sticking onto the laundry and user satisfaction is provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Description

    A LAUNDRY WASHING AND DRYING MACHINE COMPRISING A CONDENSER
  • The present invention relates to a laundry washing and drying machine comprising a condenser providing the processing air to be condensed.
  • In laundry washing and drying machines, the laundry is placed into the drum moving in a tub and the drying process is realized after the washing and spin-drying processes. In the drying process, the processing air dehumidified in a condenser, preferably of air-cooled type, is passed over the laundry in the drum by applying a closed air circulation cycle by means of a fan. During the drying process, fibers and lint are formed as the result of laundry rubbing against each other or the drum and accumulate on the condenser by being carried with the drying air. The fibers and lint on the condenser are mixed into the water condensed in the condenser to be sent to the tub by means of a water discharge channel and discharged to the outside environment by means of a discharge pump. The condensate water mixed with the fibers and lint and accumulated in the tub vaporizes by contacting the hot air in the tub before being discharged to the outer environment. The water, taken from the laundry and condensed in the condenser during the drying process, returns onto the laundry as vapor. In other words, the dried laundry gets wet again. Moreover, the fibers and lint in the vaporized water mix with the processing air to accumulate in the condenser and decrease the drying efficiency. As a result of the fibers and lint accumulating in the tub, the fibers and lint remaining from the previous drying process stick onto the laundry in the next drying process. For example, dark-colored fibers and lint accumulating on white laundry or light-colored fibers and lint accumulating on dark-colored laundry causes user dissatisfaction.
  • In the European Patent No. EP2227584, a laundry washer/dryer is disclosed, comprising a condenser, a process air channel and at least one water drain channel that is connected to the tub by being separated from the process air channel and that delivers the condensate water to the tub.
  • The aim of the present invention is the realization of a laundry washing and drying machine wherein the efficiency of the condenser is improved and fibers and lint are prevented from accumulating on the laundry.
  • The laundry washing and drying machine realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a discharge hole situated at the lower side of the tub and providing the water to be discharged at the end of washing – drying processes, a discharge hose, a pump and a condenser activated during the drying process to condense the processing air; and the condensate water separated from the processing air in the condenser is sent towards the vicinity of the discharge hole at the lower side of the tub by means of a water drain channel. Thus, the condensate water coming from the condenser is directly filled into the discharge hose serving as a receptacle without accumulating at the bottom of the tub and is discharged to the outside environment from here by means of a pump.
  • In an embodiment of the present invention, one end of the water drain channel, the other end of which is connected to the condenser, is connected to the lower side of the tub, immediately next to the discharge hole.
  • In another embodiment of the present invention, a ball closing the discharge hole and preventing detergent leakage is placed into the discharge hose and the water drain channel is connected to the tub so as to be above the ball closing the discharge hole.
  • In another embodiment of the present invention, a neck extending towards the discharge hole at the lower side of the tub is provided and the lower end of the water drain channel is connected to the neck.
  • In another embodiment of the present invention, the lower end of the water drain channel is directly connected to the discharge hose and the condensate water coming from the condenser fills into the discharge hose without contacting the tub.
  • In the laundry washing and drying machine of the present invention, fibers and lint are prevented from accumulating in the tub and the condensate water vaporizing in the tub with the effect of the hot processing air is prevented from wetting the laundry.
  • The laundry washing and drying machine realized in order to attain the aim of the present invention is illustrated in the attached figures, where:
  • Figure 1 – is the schematic view of a laundry washing and drying machine.
  • Figure 2 – is the detailed view of the discharge hole situated at the lower side of the tub and the condensate water drain channel in a laundry washing and drying machine.
  • Figure 3 – is the schematic view of a laundry washing and drying machine in another embodiment of the present invention.
  • The elements illustrated in the figures are numbered as follows:
    1. Laundry washing and drying machine
    2. Drum
    3. Tub
    4. Discharge hole
    5. Pump
    6. Discharge hose
    7. Circulation duct
    8. Condenser
    9. Water drain channel
    10. Ball
    11. Neck
  • The laundry washing and drying machine (1) is horizontal axis and front loading type, and comprises a drum (2) wherein the laundry is placed, a tub (3) wherein the drum (2) moves, a discharge hole (4) and a pump (5) situated at the lower side of the tub (3) and providing the water to be discharged at the end of the washing and drying processes, a discharge hose (6) with one end connected to the discharge hole (4) and the other end to the pump (5), a circulation duct (7) wherein the processing air (PA) circulation, providing the drying of the laundry, is performed in the drying process after the washing process, an preferably air-cooled condenser (8) disposed onto the circulation duct (7) and providing the processing air (PA) to be condensed, a fan (not shown in the figures) that provides circulation of the processing air (PA) in the circulation duct (7), a heater (not shown in the figures) heating the processing air (PA), and an outer air line (not shown in the figures) that provides the condenser (8) to be cooled by means of the air received from the outer environment.
  • The laundry washing and drying machine (1) of the present invention comprises a water drain channel (9) with the upper end connected to the condenser (8) and the lower end to the lower side of the tub (3) in the vicinity of the discharge hole (4) or to the discharge hose (6), that provides the condensate water coming from the condenser (8) to be delivered to the discharge hose (6) before the pump (5) without accumulating in the tub (3).
  • In the laundry washing and drying machine (1), during the drying process, the processing air (PA) passing over the laundry and getting humid is condensed in the condenser (8). The condensate water forming in the condenser (8) is directed with the effect of the processing air (PA) from the condenser (8) outlet towards the vicinity of the discharge hole (4) by means of the water drain channel (9). The discharge hose (6) functions as a receptacle wherein the condensate water coming from the condenser (8) accumulates and the water accumulating in the discharge hose (6) is discharged to the outside by the pump (5) that is intermittently operated during the drying process. The fibers and lint carried from the condenser (8) with the condensate water are prevented from accumulating at the lower side of the tub (3). Furthermore, the fibers and lint are prevented from sticking to the condenser (8) and the laundry by being carried (fluttering) with the processing air (PA) during the drying. The condensate water coming from the condenser (8) during the drying process does not accumulated at the lower side of the tub (3), but is directly delivered to the discharge hose (6) and does not vaporize since it does not contact the hot processing air (PA) in the tub (3). Thus, the dried laundry is prevented from getting wet again.
  • In an embodiment of the present invention, the lower end of the water drain channel (9) is connected to the lower side of the tub (3), immediately next to the discharge hole (4) (Figure 1). After traversing a short distance, for example a few centimeters between the point where the water drain channel (9) is connected to the tub (3) and the discharge hole (4), the condensate water coming from the water drain channel (9) is delivered to the discharge hose (6) from the discharge hole (4) and discharged to the outside environment by the pump (5).
  • In another embodiment of the present invention, the laundry washing and drying machine (1) comprises a ball (10) that is placed into the discharge hose (6), that closes the discharge hole (4) with the pressure of the water in the waste water pipe (B) at times when the pump (5) is not operated during the washing process and thus prevents detergent leakage during the washing process, and that allows the water to be discharged from the tub (3) by opening the discharge hole (4) when the pump (5) is operated. The lower end of the water drain channel (9) is connected to the tub (3) so as to be above the ball (10) at the position wherein the ball (10) closes the discharge hole (4) (Figure 1). Thus, the water drain channel (9) does not create an obstruction for the ball (10) to perform its normal function and the pressure applied onto the ball (10) by the water in the waste water pipe (B) during the washing process does not drop. The water in the tub (3) is discharged by the pump (5) at the end of the washing process, the ball (10) opens the discharge hole (4) and the condensate water coming from the water drain channel (9) is delivered to the discharge hose (6) through the discharge hole (4).
  • In another embodiment of the present invention, the laundry washing and drying machine (1) comprises a neck (11) extending from the lower side of the tub (3) towards the discharge hole (4) and the lower end of the water drain channel (9) is connected to the neck (11) (Figure 2). The condensate water coming from the condenser (8) passes through the neck (11) and the discharge hole (4) without contacting the tub (3) and is delivered to the discharge hose (6). The condensate water, fibers and lint are prevented from accumulating at the lower side of the tub (3).
  • In another embodiment of the present invention, the water drain channel (9) is directly connected to the discharge hose (6) between the discharge hole (4) and the pump (5). In this embodiment, the lower end of the water drain channel (9) is connected to an inlet port (A) opening into the discharge hose (6) body, immediately under the discharge hole (4) (Figure 3). The condensate water coming from the condenser (8) fills into the discharge hose (6) through the inlet port (A) without contacting the tub (3) and from here is discharged to the outside environment by means of the pump (5) and the waste water pipe (B).
  • In the laundry washing and drying machine (1) of the present invention, during the drying process, the condensate water, fibers and lint are prevented from accumulating in the tub (3) and moreover, the dried laundry is prevented from getting wet with the vaporized condensate water. The efficiency of the condenser (8) is improved, the fibers and lint are prevented from sticking onto the laundry and user satisfaction is provided.
  • It is to be understood that the present invention is not limited by the embodiments disclosed above and a person skilled in the art can easily introduce different embodiments. These should be considered within the scope of the protection postulated by the claims of the present invention.

Claims (6)

  1. A laundry washing and drying machine (1) comprising a drum (2) wherein the laundry is placed, a tub (3) wherein the drum (2) moves, a discharge hole (4) and a pump (5) situated at the lower side of the tub (3) and providing the water to be discharged at the end of the washing and drying processes, a discharge hose (6) with one end connected to the discharge hole (4) and the other end to the pump (5), a circulation duct (7) wherein the processing air (PA) circulation, providing the drying of the laundry, is performed in the drying process after the washing process, a condenser (8) disposed onto the circulation duct (7), characterized in that a water drain channel (9) with the upper end connected to the condenser (8) and the lower end to the lower side of the tub (3) in the vicinity of the discharge hole (4) or to the discharge hose (6), that provides the condensate water coming from the condenser (8) to be delivered to the discharge hose (6) without accumulating in the tub (3).
  2. A laundry washing and drying machine (1) as in Claim 1, characterized in that the water drain channel (9) that is connected to the lower side of the tub (3), immediately next to the discharge hole (4).
  3. A laundry washing and drying machine (1) as in Claim 1 or 2, characterized in that a ball (10) that is placed into the discharge hose (6), that closes the discharge hole (4) when the pump (5) is not operated and that allows the water to be discharged from the tub (3) by opening the discharge hole (4) when the pump (5) is operated and in that the water drain channel (9) that is connected to the tub (3) so as to be above the ball (10) closing the discharge hole (4).
  4. A laundry washing and drying machine (1) as in Claim 1, characterized in that a neck (11) extending from the lower side of the tub (3) towards the discharge hole (4) and in that the water drain channel (9) connected to the neck (11).
  5. A laundry washing and drying machine (1) as in Claim 1, characterized in that the water drain channel (9) directly connected to the discharge hose (6) between the discharge hole (4) and the pump (5).
  6. A laundry washing and drying machine (1) as in Claim 5, characterized in that the water drain channel (9) connected to an inlet port (A) opening into the discharge hose (6) body, immediately under the discharge hole (4).
EP13756503.2A 2012-09-24 2013-09-04 A laundry washing and drying machine comprising a condenser Active EP2898132B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201210868 2012-09-24
PCT/EP2013/068301 WO2014044531A1 (en) 2012-09-24 2013-09-04 A laundry washing and drying machine comprising a condenser

Publications (2)

Publication Number Publication Date
EP2898132A1 true EP2898132A1 (en) 2015-07-29
EP2898132B1 EP2898132B1 (en) 2018-01-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP13756503.2A Active EP2898132B1 (en) 2012-09-24 2013-09-04 A laundry washing and drying machine comprising a condenser

Country Status (2)

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EP (1) EP2898132B1 (en)
WO (1) WO2014044531A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3467187B1 (en) 2017-10-09 2021-12-22 Whirlpool Corporation Filter configured for being used in a machine for drying laundry and machine for drying laundry equipped with such a filter

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3220229A (en) * 1963-12-13 1965-11-30 Gen Motors Corp Clothes washer and dryer
ES242592Y (en) * 1979-03-22 1979-12-01 DRYING DEVICE FOR CLOTHES WASHING MACHINE.
IT1192075B (en) * 1986-04-09 1988-03-31 Zanussi Elettrodomestici HOUSEHOLD APPLIANCE MACHINE FOR LAUNDRY WASHING AND DRYING
KR101235193B1 (en) * 2005-06-13 2013-02-20 삼성전자주식회사 Washing machine and control method thereof
WO2009080577A1 (en) 2007-12-20 2009-07-02 BSH Bosch und Siemens Hausgeräte GmbH Washing/drying device comprising a process air channel
JP5948661B2 (en) * 2010-09-30 2016-07-06 パナソニックＩｐマネジメント株式会社 Drying equipment
DE202010017496U1 (en) * 2010-10-06 2011-12-02 BSH Bosch und Siemens Hausgeräte GmbH Closing device for the tub of a laundry treatment machine
WO2014017004A1 (en) * 2012-07-24 2014-01-30 パナソニック株式会社 Clothes dryer

Also Published As

Publication number Publication date
EP2898132B1 (en) 2018-01-31
WO2014044531A1 (en) 2014-03-27

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