EP1925712B2 - Wäschetrockner mit Kreislauf zur Begrenzung der Innenkondensation - Google Patents

Wäschetrockner mit Kreislauf zur Begrenzung der Innenkondensation Download PDF

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Publication number
EP1925712B2
EP1925712B2 EP06425796.7A EP06425796A EP1925712B2 EP 1925712 B2 EP1925712 B2 EP 1925712B2 EP 06425796 A EP06425796 A EP 06425796A EP 1925712 B2 EP1925712 B2 EP 1925712B2
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EP
European Patent Office
Prior art keywords
duct
machine
cold air
heat exchanger
air
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Application number
EP06425796.7A
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English (en)
French (fr)
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EP1925712A1 (de
EP1925712B1 (de
Inventor
Silvano Fumagalli
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Candy SpA
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Candy SpA
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Priority to EP06425796.7A priority Critical patent/EP1925712B2/de
Publication of EP1925712A1 publication Critical patent/EP1925712A1/de
Application granted granted Critical
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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

Definitions

  • This invention relates to a machine for drying laundry.
  • Laundry drying machines of the condensation type in which the moist air leaving the drum in which the laundry being dried is contained is caused to pass through heat exchanger devices which cool the said hot moist air with cold air from the exterior producing condensation water.
  • the said machines are provided with tanks for the collection of condensation water generally located beneath the heat exchanger; the said tanks may be of the fixed or removable type.
  • the moist air leaving the drying drum is passed to heating resistances to be heated and passed to the drying drum while the cold air is discharged outside the machine.
  • EP-A-0 465 318 where the heat exchanger is in form of a rotating plate which makes a separation between an upper space, where the drum is located, and a bottom space where cooling air is admitted through apertures in communication with the outside of the machine.
  • the cooling air used for cooling the rotating plate is free to go in and out from the bottom space without being canalised inside a duct.
  • the object of this invention is to provide a laundry drying machine which overcomes the abovementioned disadvantages.
  • this object is accomplished through a drying machine according to claim 1 below.
  • the laundry drying machine is provided with a cabinet 1 having an opening 2 on the front 3 for loading the laundry which has to be dried.
  • the machine also comprises a door 2a closing opening 2 in cabinet 1 and a drum 5 to contain the laundry which is to be dried.
  • Door 2a is hinged to the front wall 3 of body 1 in a conventional way.
  • Drum 5 may be of the fixed type or of the rotating type driven by an electric motor and suitable conventional mechanisms.
  • Drum 5 also includes an opening 5a aligned with opening 2 in cabinet 1 for loading the laundry which has to be dried.
  • the laundry drying machine comprises a heat exchanger 6 through which the flow of hot moist air 100 originating from drum 5 flows in a conventional way.
  • the moist air passing through device 6 is cooled by a flow 200 of cold air obtained from outside the machine through an opening 11, by a fan 7 driven by a motor and passed to device 6 through a duct 12.
  • condensation water is produced and is collected in a tank 10 located beneath heat exchanger 6. Any droplets of condensation water which might run along the outside wall of duct 12 are collected in a tray indicated by 10a.
  • Cooled air 100 from device 6 is passed to a duct 8 where it is heated by electrical resistances present within duct 8, which are not shown.
  • Heated air 100 is driven towards drum 5 by a fan 9 in order to dry the laundry.
  • Heat exchanger 6 is preferably located beneath drum 5, as can be seen in Figures 1 and 2 .
  • Tank 10 for collecting the condensation water originating from that device 6 is located beneath device 6.
  • the laundry drier comprises a duct 20 which discharges the flow of cold air 200 used to cool the air of hot moist air 100 originating from drum 5 in heat exchanger 6 outside the machine through an opening 13.
  • Opening 13 is preferably located in the back wall 3a of the machine.
  • Ducts 12 and 20 therefore create a ducted route for the flow of air 200 drawn in from the exterior through opening 11, which remains isolated from duct 8 and the other components of the laundry drying machine.
  • the said air flow 200 is prevented from lowering the temperature of air flow 100 while the latter is in a position to dry the laundry, preserving optimum performance from the machine.
  • Figures 3 and 4 show the structure of connection 19 between duct 20 and heat exchanger device 6 in greater detail; the said connecting structure is provided on a part of device 6 which is different from that to which duct 8 is connected in such a way as to prevent any mixing hot air flow 200 and cold air flow 100 which cross in their respective ducts in air/air heat exchanger 6.
  • Figure 5 illustrates a modified embodiment of connecting structure 19 with heat exchanger 6 in Figure 4 .
  • connection 19 comprises a duct 21 which conveys cold air flow 200 either towards opening 13 or towards another outlet opening 16.
  • Outlet openings 13 and 16 are respectively located in back wall 3a and front wall 3 of cabinet 1. Pressure in the condensation circuit is thus reduced through a greater flow of cooling air 200.
  • One of two openings 13 and 16 may be provided with a cover, not shown in the drawings, to block the flow of air to the exterior.
  • Figures 6 to 8 show a diagrammatical view of a laundry drying machine according to an embodiment of the invention.
  • the said machine comprises a circuit for the partial diffusion of air flow 200 within cabinet 1 of the laundry drier after the said flow has passed through heat exchanger 6.
  • the said circuit comprises ducts 301 and 302 which are hydraulically connected together; duct 301, which extends vertically and parallel to front wall 3 of the machine, is connected to connecting structure 19 discharging cold air 200 to the exterior.
  • Duct 302 is located in the upper part of the laundry drier, parallel to a covering panel 303 and in the embodiment illustrated in Figures 6 and 7 is therefore perpendicular to duct 301 with which it is connected for the passage of the flow of air.
  • Duct 302 is provided with nozzles 304 in order to diffuse cold air 200 within the cabinet of the laundry drying machine, preferably in the direction of the electrical and/or electronic components, indicated diagrammatically by 305, involving control of the machine in such a way as to prevent the formation of condensation upon them or in their vicinity and to prevent them from overheating.
  • vertical duct 301 may also be provided with air diffusing nozzles 304 located along its axial length.
  • the flow from nozzles 304 may be gauged in relation to the size of the electronic and electrical controls and the size of the part of the machine to which the flow is directed in order to prevent condensation phenomena.
  • duct 302 may adopt positions which are angularly displaced in a plane parallel to covering panel 303 of the machine according to requirements, as indicated by dashed lines in Figure 7 .
  • vertical duct 301 will be mounted on the machine in such a way as to be angularly movable about its own longitudinal axis.

Landscapes

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

Claims (5)

  1. Wäschetrockner, umfassend eine Trommel (5) zum Aufnehmen der zu trocknenden Wäsche, Mittel (8, 9) zum Zuführen der erwärmten Luft (100), die dazu geeignet ist, die Wäsche in der Trommel (5) zu trocknen, einen Einlass (11) für die Kaltluft (200), die von außerhalb des Geräts stammt, eine Wärmetauschereinrichtung (6), die von der aus der Trommel (5) stammenden Luft (100) durchströmt und durch die von außen stammende Kaltluft (200) abgekühlt wird, wenigstens einen Behälter (10) zum Sammeln des Kondenswassers, das durch die Wärmetauschereinrichtung (6) erzeugt wird, wenigstens einen Auslass (13, 16) für die Kaltluft und eine Leitungseinrichtung (20, 21), um einen Weg zum Abziehen der Kaltluft (200) aus der Wärmetauschereinrichtung (6) bereitzustellen, nachdem sie diese durchströmt hat, und sie wenigstens einem Auslass (13, 16) zuzuführen, wobei
    die aus der Trommel stammende und durch die Wärmetauschereinrichtung strömende Luft durch einen Kaltluftstrom (200) abgekühlt wird, der von außen durch den Einlass (11) über ein Gebläse (7) erhalten wird und über eine Leitung (12) zur Wärmetauschereinrichtung (6) strömt,
    die Leitungseinrichtung (20, 21) eine Leitung (20) umfasst, die zwischen der Wärmetauschereinrichtung (6) und einer Auslassöffnung (13) in dem Gerät angeschlossen ist, wobei die Leitung (20) den Kaltluftstrom durch die Auslassöffnung außerhalb des Geräts auslässt, wobei der Kaltluftstrom in der Wärmetauschereinrichtung dazu verwendet wird, die aus der Trommel stammende Warmluft abzukühlen und wobei die Leitung (20) zum Auslassen des Kaltluftstroms und die Leitung (12) zum Durchführen der Kaltluft vom Gebläse zu der Wärmetauschereinrichtung eine geleitete Strecke für den Luftstrom erzeugen, der von außen durch den Einlass (11) nach innen gezogen wird, wobei die geleitete Strecke von einer Leitung (8) zum Zuführen der erwärmten Luft in die Trommel und von den übrigen Bestandteilen des Geräts isoliert bleibt, dadurch gekennzeichnet, dass
    das Gerät ferner einen Kreislauf zum Verteilen eines Teils des Kaltluftstroms (200) umfasst, nachdem dieser die Wärmetauschereinrichtung (6) durchströmt hat, wenigstens im oberen Innenteil des Gehäuses (1) des Geräts in der Nähe der elektrischen und/oder elektronischen Bestandteile, die dazu bestimmt sind, das Gerät zu steuern.
  2. Gerät nach Anspruch 1, dadurch gekennzeichnet, dass es zwei Auslässe (13, 16) für die Kaltluft (200) umfasst, von denen einer in der Vorderwand (3) und der andere in der Rückwand (3a) des Geräts angeordnet ist, wobei die Leitungseinrichtung eine Leitung (21) umfasst, die zwischen der Wärmetauschereinrichtung (6) und den beiden Auslässen (13, 16) angeschlossen ist.
  3. Gerät nach Anspruch 1, dadurch gekennzeichnet, dass der Kreislauf zum Verteilen eines Teils des Kaltluftstroms innerhalb des Gehäuses (1) wenigstens eine erste Leitung (301) umfasst, die sich vertikal und parallel zur Vorderwand des Geräts erstreckt, wobei die Leitung hydraulisch mit der Anschlussstruktur (19) der Abgabe des Kaltluftstroms (200) nach außen verbunden ist, und wenigstens eine zweite Leitung (302), die hydraulisch mit Ersterer verbunden ist, die parallel zur oberen Abdeckplatte (303) des Gehäuses (1) des Geräts in der Nähe derselben angeordnet ist.
  4. Gerät nach einem der Ansprüche 1 und 3, dadurch gekennzeichnet, dass die erste und die zweite Leitung (301, 302) mit Luftverteilerdüsen (304) versehen sind.
  5. Gerät nach einem der Ansprüche 1 und 3, dadurch gekennzeichnet, dass die zweite Leitung (302), die parallel zur oberen Abdeckplatte (303) des Gehäuses (1) des Geräts verläuft, winkelmäßig um die Längsachse der ersten Leitung (301) auf einer parallel zur Platte (303) verlaufenden Ebene bewegt werden kann.
EP06425796.7A 2006-11-24 2006-11-24 Wäschetrockner mit Kreislauf zur Begrenzung der Innenkondensation Active EP1925712B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06425796.7A EP1925712B2 (de) 2006-11-24 2006-11-24 Wäschetrockner mit Kreislauf zur Begrenzung der Innenkondensation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06425796.7A EP1925712B2 (de) 2006-11-24 2006-11-24 Wäschetrockner mit Kreislauf zur Begrenzung der Innenkondensation

Publications (3)

Publication Number Publication Date
EP1925712A1 EP1925712A1 (de) 2008-05-28
EP1925712B1 EP1925712B1 (de) 2011-11-30
EP1925712B2 true EP1925712B2 (de) 2017-03-29

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ID=37964751

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EP06425796.7A Active EP1925712B2 (de) 2006-11-24 2006-11-24 Wäschetrockner mit Kreislauf zur Begrenzung der Innenkondensation

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EP (1) EP1925712B2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100034077A (ko) * 2008-09-23 2010-04-01 삼성전자주식회사 의류건조기
IT1396208B1 (it) * 2009-10-20 2012-11-16 Candy Spa Elettrodomestico con un sistema di raffreddamento del condensatore perfezionato
EP2423371A1 (de) 2010-08-25 2012-02-29 Electrolux Home Products Corporation N.V. Wäschebehandlungsmaschine
EP2423378B1 (de) 2010-08-25 2013-04-17 Electrolux Home Products Corporation N.V. Wäschebehandlungsmaschine
US11851807B2 (en) 2019-11-07 2023-12-26 Whirlpool Corporation Method of removing heat from a clothes tumbling system on the outside of the cabinet

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7305709U (de) † 1973-05-30 Licentia Gmbh Wäschetrockner
GB2026147A (en) † 1978-07-20 1980-01-30 Licentia Gmbh Laundry drier
DE2923701A1 (de) † 1979-06-12 1980-12-18 Hermann Zanker Kg Maschinen Un Waeschetrockner
US4489507A (en) † 1981-10-09 1984-12-25 Tokyo Shibaura Denki Kabushiki Kaisha Drying apparatus
EP0254018A1 (de) † 1986-07-25 1988-01-27 INDUSTRIE ZANUSSI S.p.A. Wäschetrockner mit Kondensationseinrichtung
JPH02302299A (ja) † 1989-05-17 1990-12-14 Matsushita Electric Ind Co Ltd 除湿式衣類乾燥機
JPH05154296A (ja) † 1991-12-02 1993-06-22 Matsushita Electric Ind Co Ltd 除湿式衣類乾燥機
JPH07275585A (ja) † 1994-04-13 1995-10-24 Nippon Kentetsu Co Ltd 衣類乾燥機

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2664301B1 (fr) * 1990-07-05 1992-09-11 Ciapem Seche-linge a echangeur de chaleur rotatif.
DE19508244A1 (de) * 1995-03-08 1996-09-12 Aeg Hausgeraete Gmbh Kondensations-Wäschetrockner
IT1275910B1 (it) * 1995-03-09 1997-10-24 Candy Spa Asciugabiancheria a condensazione con recupero di condensa in contenitore
KR100487329B1 (ko) * 2002-10-10 2005-05-03 엘지전자 주식회사 응축식 의류건조기 및 그 제어방법

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7305709U (de) † 1973-05-30 Licentia Gmbh Wäschetrockner
GB2026147A (en) † 1978-07-20 1980-01-30 Licentia Gmbh Laundry drier
DE2923701A1 (de) † 1979-06-12 1980-12-18 Hermann Zanker Kg Maschinen Un Waeschetrockner
US4489507A (en) † 1981-10-09 1984-12-25 Tokyo Shibaura Denki Kabushiki Kaisha Drying apparatus
EP0254018A1 (de) † 1986-07-25 1988-01-27 INDUSTRIE ZANUSSI S.p.A. Wäschetrockner mit Kondensationseinrichtung
JPH02302299A (ja) † 1989-05-17 1990-12-14 Matsushita Electric Ind Co Ltd 除湿式衣類乾燥機
JPH05154296A (ja) † 1991-12-02 1993-06-22 Matsushita Electric Ind Co Ltd 除湿式衣類乾燥機
JPH07275585A (ja) † 1994-04-13 1995-10-24 Nippon Kentetsu Co Ltd 衣類乾燥機

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EP1925712A1 (de) 2008-05-28
EP1925712B1 (de) 2011-11-30

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