EP0704569A1 - Wäschewaschtrockner - Google Patents

Wäschewaschtrockner Download PDF

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Publication number
EP0704569A1
EP0704569A1 EP94830457A EP94830457A EP0704569A1 EP 0704569 A1 EP0704569 A1 EP 0704569A1 EP 94830457 A EP94830457 A EP 94830457A EP 94830457 A EP94830457 A EP 94830457A EP 0704569 A1 EP0704569 A1 EP 0704569A1
Authority
EP
European Patent Office
Prior art keywords
air
drum
laundry
cooling water
duct
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.)
Withdrawn
Application number
EP94830457A
Other languages
English (en)
French (fr)
Inventor
Antonio Merloni
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.)
Antonio Merloni SpA
Original Assignee
Antonio Merloni SpA
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 Antonio Merloni SpA filed Critical Antonio Merloni SpA
Priority to EP94830457A priority Critical patent/EP0704569A1/de
Publication of EP0704569A1 publication Critical patent/EP0704569A1/de
Withdrawn legal-status Critical Current

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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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/24—Condensing arrangements

Definitions

  • the present invention relates to so-called laundry washer-driers for washing and drying laundry.
  • air enters the drum containing the laundry is heated by a heating element, and after passing through the laundry and out through holes in the drum, enters drainage ducts of the machine and finally returns to a circulation fan which forces the air to enter the drum again.
  • the air when passing through the hot laundry removes moisture therefrom.
  • a recirculation duct leading back to the fan it comes into contact with water and is cooled, thereby causing moisture to be condensed out of the air. Circulation of air in this manner for 70-120 minutes allows the laundry to be dried completely.
  • An arrangement is also known in which air is forced by a fan through a heating element and is then introduced into the drum where it contacts the wet laundry and takes up moisture.
  • the moist air then passes into a recirculation duct where, suitably cooled with water, it gives up the moisture, after which the air is returned to the fan to repeat the cycle.
  • the air cooling duct is generally referred to as a condenser.
  • the condensed water, together with the cooling water, are removed from the machine via the water drainage duct of the machine.
  • the condenser is normally formed by a duct with a substantially vertical section in which the current of hot and moist air, coming from the base of the machine, meet a countercurrent of water coming from the top to cool the air and condense moisture out of the air.
  • the object of the invention is to provide a washer drier with an arrangement enabling relatively rapid cooling of the moist air flow, and allowing continual monitoring of the residual moisture by means of appropriate sensors.
  • a laundry washer drier comprising a rotatable drum for holding the laundry and disposed in a surrounding enclosure, a substantially closed air circulation path including a duct leading from the enclosure to a device for causing circulation of air, and means for supplying cooling water for cooling moist air flowing in the air circulation path, characterised in that the means for supplying cooling water is arranged to deliver the water into the interspace between the drum and the surrounding enclosure.
  • the collector functions of the duct leading from the drum enclosure and the circulation device are separated from the condenser functions of cooling and removing moisture from the air.
  • the invention is based on the recognition that in order to condense the moisture in the air circulating in the drying system of the machine, it is not necessary to cool the air in the collector section of the circulation path and it is sufficient to cool the air with water at an appropriate point within the interspace between the drum and the enclosure, through which interspace the moist air passes upon leaving the drum. Water condensed in the interspace and the cooling water can be removed through the drain which is connected to the drum enclosure.
  • the drum In order to prevent water, introduced to condense moisture, from wetting the laundry that it is wished to dry, it is preferable for the drum not to be perforated on the side at which the cooling water is introduced.
  • Fig. 1 is a vertical cross-section through the washer-drier.
  • the casing of the machine contains the main motor 2, and a perforated drum 3 for receiving the laundry and which is rotated by the motor 2.
  • the drum is enclosed within a tank to a lower portion of which is connected a circulation duct 4 for the air circulated during a laundry drying cycle.
  • An interspace 5 is defined between the drum and the surrounding tank and cooling water is introduced into this interspace through a water supply line 6 without coming into contact with the moist air having entered the duct 4.
  • the duct 4 leads to a fan 7 which forces the air to flow back to the drum after passing over a resistance heater 8 which heats the air.
  • the cooling water is introduced adjacent the rear wall of the drum 3 which, unlike its peripheral wall is not perforated.
  • the cooling water may be introduced into the interspace 5 and also into contact with the drum 3, via the detergent drawer 9, as illustrated.
  • the flow of cooling water can also serve to clean away fluff 10 deposited during the air drying cycle. This fluff passes with the cooling water and water condensed out of the air into the drain outlet of the machine leading from the tank, and is discharged externally by means of the pump 11 via the drainage hose 12.
  • the described washer-drier obtains the above-mentioned objects and in particular allows the cooling of the flow of moist air in short periods of time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP94830457A 1994-09-27 1994-09-27 Wäschewaschtrockner Withdrawn EP0704569A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP94830457A EP0704569A1 (de) 1994-09-27 1994-09-27 Wäschewaschtrockner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94830457A EP0704569A1 (de) 1994-09-27 1994-09-27 Wäschewaschtrockner

Publications (1)

Publication Number Publication Date
EP0704569A1 true EP0704569A1 (de) 1996-04-03

Family

ID=8218539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94830457A Withdrawn EP0704569A1 (de) 1994-09-27 1994-09-27 Wäschewaschtrockner

Country Status (1)

Country Link
EP (1) EP0704569A1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0942093A1 (de) * 1998-03-12 1999-09-15 Matsushita Electronics Corporation Elektrischer Waschtrockner
EP1229160A1 (de) * 2001-02-01 2002-08-07 Lg Electronics Inc. Pulsatorwaschmaschine mit Trocknungsvorrichtung
WO2003057967A1 (en) * 2002-01-11 2003-07-17 Lg Electronics Inc. A washing machine and dryer having being improved duct structure thereof
KR100471428B1 (ko) * 2002-01-17 2005-02-22 엘지전자 주식회사 건조겸용 드럼세탁기
EP1849911A1 (de) * 2006-04-26 2007-10-31 Bonferraro S.p.A. Kondensator für Waschtrockner
EP1544342A3 (de) * 2003-12-18 2007-11-14 Lg Electronics Inc. Waschmachine mit Trocknungsfunktion und dazugehöriges Verfarhren zum Betreiben
WO2012053746A3 (en) * 2010-10-19 2013-10-31 Lg Electronics Inc. Washing machine having drying function

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1585675A1 (de) * 1967-12-29 1970-12-03 Constructa Werke Gmbh Trommelwaschmaschine mit Trocknungseinrichtung
DE2107313A1 (de) * 1971-02-11 1972-08-31 Siemens Elektrogeraete Gmbh Nach dem Trommelprinzip arbeitender Wäschetrockner
DE2545795A1 (de) * 1975-07-02 1977-04-21 Lepper Gmbh Masch App Kombinierte trommelwasch- und trockeneinrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1585675A1 (de) * 1967-12-29 1970-12-03 Constructa Werke Gmbh Trommelwaschmaschine mit Trocknungseinrichtung
DE2107313A1 (de) * 1971-02-11 1972-08-31 Siemens Elektrogeraete Gmbh Nach dem Trommelprinzip arbeitender Wäschetrockner
DE2545795A1 (de) * 1975-07-02 1977-04-21 Lepper Gmbh Masch App Kombinierte trommelwasch- und trockeneinrichtung

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0942093A1 (de) * 1998-03-12 1999-09-15 Matsushita Electronics Corporation Elektrischer Waschtrockner
US6282928B1 (en) 1998-03-12 2001-09-04 Matsushita Electric Industrial Co., Ltd. Electric washer-dryer
US6378342B1 (en) 1998-03-12 2002-04-30 Matsushita Electric Industrial Co., Ltd. Electric washer-dryer
US7415848B2 (en) 2001-02-01 2008-08-26 Lg Electronics Inc. Pulsator type washing machine with drying function
EP1229160A1 (de) * 2001-02-01 2002-08-07 Lg Electronics Inc. Pulsatorwaschmaschine mit Trocknungsvorrichtung
WO2003057967A1 (en) * 2002-01-11 2003-07-17 Lg Electronics Inc. A washing machine and dryer having being improved duct structure thereof
AU2003235780B2 (en) * 2002-01-11 2006-05-04 Lg Electronics Inc. A washing machine and dryer having being improved duct structure thereof
KR100471428B1 (ko) * 2002-01-17 2005-02-22 엘지전자 주식회사 건조겸용 드럼세탁기
EP1544342A3 (de) * 2003-12-18 2007-11-14 Lg Electronics Inc. Waschmachine mit Trocknungsfunktion und dazugehöriges Verfarhren zum Betreiben
US7421865B2 (en) 2003-12-18 2008-09-09 Lg Electronics Inc. Washing machine with drying function and method of controlling the same
EP1849911A1 (de) * 2006-04-26 2007-10-31 Bonferraro S.p.A. Kondensator für Waschtrockner
WO2012053746A3 (en) * 2010-10-19 2013-10-31 Lg Electronics Inc. Washing machine having drying function
CN103608508A (zh) * 2010-10-19 2014-02-26 Lg电子株式会社 具有干燥功能的洗衣机
AU2011318847B2 (en) * 2010-10-19 2015-07-09 Lg Electronics Inc. Washing machine having drying function
EP2655717A4 (de) * 2010-10-19 2017-12-27 LG Electronics Inc. Waschmaschine mit trocknungsfunktion

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19960201

AK Designated contracting states

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Designated state(s): AT BE CH DE DK ES FR GB GR IT LI NL PT SE

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Effective date: 19970620

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18D Application deemed to be withdrawn

Effective date: 19971031