EP1541744A1 - Haushalt-Wäschetrockner mit verbessertem Kondensator - Google Patents

Haushalt-Wäschetrockner mit verbessertem Kondensator Download PDF

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Publication number
EP1541744A1
EP1541744A1 EP03028410A EP03028410A EP1541744A1 EP 1541744 A1 EP1541744 A1 EP 1541744A1 EP 03028410 A EP03028410 A EP 03028410A EP 03028410 A EP03028410 A EP 03028410A EP 1541744 A1 EP1541744 A1 EP 1541744A1
Authority
EP
European Patent Office
Prior art keywords
air
drying
condenser
flow
cooling
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Withdrawn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
EP03028410A
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English (en)
French (fr)
Inventor
Ugo Favret
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.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
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 Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to EP03028410A priority Critical patent/EP1541744A1/de
Publication of EP1541744A1 publication Critical patent/EP1541744A1/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Withdrawn legal-status Critical Current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 refers to an improved kind of clothes drying machine, preferably of the type for use in households, which is provided with means for removing the moisture from the drying air comprising a condenser through which there is conveyed, further to the flow of the drying air itself, a second flow of cooling air, occurring of course separately from said flow of drying air, which is taken in from the outside ambient and appropriately delivered to flow through and, as a result, cool down said condenser.
  • the present invention preferably applies to clothes drying machines which, further to a condenser, are also provided with:
  • the hot air Upon having been blown into the clothes-holding drum, the hot air causes the moisture contained in the clothes to evaporate, thereby becoming almost saturated, or even fully saturated, therewith.
  • This hot, moisture-laden air is then pushed further by said fan, thereby creating a continuous flow that is eventually sent into an appropriate condensation arrangement, which is usually constituted by a heat-exchanger flown through - along the so-called “hot” path - by said flow of hot moisture-laden air and - along the so-called “cold” path - by a substantially continuous flow of fresh air that is taken in from the outside ambient and is exhausted again into the outside ambient upon having so flown through said heat-exchanger.
  • a drum 1 adapted to hold the clothes to be dried, to which there is associated a conduit 2 for the circulation of the drying air; the latter flows also through a condenser 3, which is adapted to cause the moisture contained in the drying air flowing therethough to condense, said condenser being furthermore flown through by a flow of "cold" air, i.e. air taken in from the outside ambient and sent to said condenser 3 via a corresponding conduit 4.
  • Both conduits 2 and 4 contain two respective fans 5, 6 therewithin, which are provided to circulate the drying-air flow and the cooling-air flow, respectively. Furthermore, the shafts of said two fans 5 and 6 are connected in any of the manners known as such in the art, even via appropriate mechanisms and gears, to a single motor 7 so that the rotation of this motor causes said two fans to correspondingly rotate in a synchronous manner.
  • This motor 7 is controlled by appropriate control means (not shown), which are adapted to let it revolve in its two possible directions of rotation; as a result, this allows said two fans to be caused to selectively rotate in either direction, but in all cases in a mutually consistent manner (i.e., when a first fan rotates in a definite direction, the second fan will always rotate in a single and sole direction; and when the first fan changes its direction of rotation, the second fan will change its own direction of rotation, too).
  • the motor driving the fan may also be used, via appropriate motion transmission means, to also rotatably drive the clothes-holding drum; in this connection, it is a common practice for said motor to be so controlled as to revolve for short periods of time in its normal, i.e. main direction of rotation, in which said short periods of rotation in that direction are alternated with other short periods during which said motor revolves in the opposite, i.e. secondary direction of rotation.
  • said machine is improved in the following manner: with reference to Figures 1 and 2, and stressing again the fact the condenser 3 is flown through by two distinct streams of drying air and cooling air, there are provided means that are practically adapted to cause the sole flow of drying air, or alternatively the sole flow of cooling air, to bypass, i.e. to leave out the passage through the condenser.
  • Such bypass starts upstream of the condenser and terminates downstream thereof, where it is restored into its original flow-path, so that it is the sole condenser that is actually involved by the corresponding diversion of said airflow.
  • the present invention may be practically embodied by providing an auxiliary cooling conduit 10, which starts by branching off from a section of the cooling conduit 4 upstream of the condenser and extends further towards the exhaust outlet 11 without passing through the condenser 3.
  • a diverting means which is preferably constituted by a valve 13 featuring an inlet way 14, formed by the cooling-air conduit upstream thereof, and two outlet ways 15 and 16: one of these outlet ways is formed by the same portion of conduit leading to the condenser 3, whereas the other outlet way 16 opens into said auxiliary cooling-air conduit 10.
  • This valve is adapted to receive the flow of cooling air being taken in from outside, and to direct it towards either the condenser 3 or the auxiliary conduit 10 that bypasses said condenser.
  • the valve 13 makes preferably use of a moving partition 17 which, as appropriately actuated, is capable of selectively close either one or the other of said outlet ways of the flow-diverting valve, thereby enabling the flow of cooling air to be directed towards the preselected conduit.
  • valve is actuated by an electrically operable actuator 18 of a kind known as such in the art, which is operated in accordance with the phase of the operation cycle being performed by the machine.
  • the drying air is heated up gradually to its process temperature, while becoming increasingly laden with the moisture it removes from the clothes.
  • the actuator 18 is operated so that the cooling air in the conduit 4 is now conveyed into the condenser, thereby restoring the normal mode of operation of the machine and enabling said flow of hot moisture-laden air to be cooled down and the moisture contained therein to condense.
  • the present invention may anyway be also embodied in a manner differing from the one described just above, in which this different embodiment is practically aimed at bringing about a reverse mode of operation as far as the crossing of said flows inside the condenser is concerned.
  • the object of the present invention which is basically aimed at preventing the flows of drying and cooling air from crossing each other inside the condenser for a pre-established period of time during the drying process, may be achieved by either diverting the flow of cooling air, so as this has been just described above, or by leaving the cooling-air conduit unaltered and providing a condenser bypass arrangement on the drying-air conduit, instead.
  • the desired temporary avoidance of a mutual crossing of the airflows in the condenser may be equally well obtained regardless of which conduit, i.e. the cooling-air conduit or the drying-air conduit, is provided with a bypass feature to go round the condenser.
  • the drying-air conduit 2 is therefore provided with an auxiliary drying-air conduit 20, which bypasses the condenser for joining again the same main conduit 2 downstream of the condenser.
  • drying-air conduit that will be provided with a respective three-way valve 21 and a respective actuator 22 in this case.
  • either of the two auxiliary conduits 11 and 12, according to which one of them is actually used may be so provided and arranged as to run contiguous or, still better, adjacent to a surface 30 of said condenser; this enables the overall space requirement of said auxiliary conduits to be reduced to the maximum possible extent and, in particular, the space existing between these auxiliary conduits and other functional parts of the machine, including in particular the condenser itself, which would otherwise be scarcely able to be used owing to their size or a poor accessibility, to be minimized.
  • the surfaces 30 of the condenser and 31 of one of said auxiliary conduits may be advantageously integrated with each other, i.e. unified into a single wall 33 that is common to both said elements, in such a manner as to make the resulting assembly much more compact and simple in its construction, thereby reaching at the same time also an advantage in terms of a saving, albeit small, in material usage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP03028410A 2003-12-11 2003-12-11 Haushalt-Wäschetrockner mit verbessertem Kondensator Withdrawn EP1541744A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03028410A EP1541744A1 (de) 2003-12-11 2003-12-11 Haushalt-Wäschetrockner mit verbessertem Kondensator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03028410A EP1541744A1 (de) 2003-12-11 2003-12-11 Haushalt-Wäschetrockner mit verbessertem Kondensator

Publications (1)

Publication Number Publication Date
EP1541744A1 true EP1541744A1 (de) 2005-06-15

Family

ID=34486176

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03028410A Withdrawn EP1541744A1 (de) 2003-12-11 2003-12-11 Haushalt-Wäschetrockner mit verbessertem Kondensator

Country Status (1)

Country Link
EP (1) EP1541744A1 (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007093543A1 (de) * 2006-02-17 2007-08-23 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung und verfahren zum trocknen eines gutes
WO2008003590A1 (de) * 2006-07-06 2008-01-10 BSH Bosch und Siemens Hausgeräte GmbH Hausgerät zur pflege von wäschestücken und verfahren zum leiten von kühlluft in einem solchen hausgerät
EP1925713A1 (de) * 2006-11-24 2008-05-28 CANDY S.p.A. Wäschetrockner mit zusätzlicher Kammer mit Temperaturkontrolle für Feinwäsche
EP1925714A1 (de) * 2006-11-24 2008-05-28 CANDY S.p.A. Vorrichtung und Verfahren zur Regelung des Trockenluftstroms in einem Wäschetrockner
WO2008110449A1 (de) * 2007-03-12 2008-09-18 BSH Bosch und Siemens Hausgeräte GmbH Trockner mit wärmerückgewinnung sowie verfahren zu seinem betrieb
EP1990464A1 (de) * 2007-05-09 2008-11-12 CANDY S.p.A. Wäschetrockner mit einem temperaturgesteuerten zusätzlichen Trocknungsschrank und Verfahren zur Trocknung in diesem Trocknungsschrank.
EP2366827A1 (de) * 2010-03-18 2011-09-21 Askoll Holding S.r.l. Gebläse- und Antriebseinheit für einen Kondensations-Wäschetrockner und Kondensations-Wäschetrockner mit einer solchen Einheit
CN102477687A (zh) * 2010-11-26 2012-05-30 博西华电器（江苏）有限公司 衣物烘干设备
WO2012123914A1 (fr) * 2011-03-16 2012-09-20 Pierre Brun Dispositif de traitement d'air humide et procede associe
WO2012089603A3 (en) * 2010-12-31 2013-06-06 Arcelik Anonim Sirketi A laundry dryer
WO2016113065A1 (de) * 2015-01-12 2016-07-21 BSH Hausgeräte GmbH Kondensationstrockner mit verbesserter trocknung und verfahren zu seinem betrieb
CN106637872A (zh) * 2015-10-28 2017-05-10 青岛海尔洗衣机有限公司 干衣机

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1981234A (en) * 1931-04-23 1934-11-20 American Laundry Mach Co Apparatus for cleaning fabric
US3032887A (en) * 1958-05-02 1962-05-08 Gen Motors Corp Clothes drier
GB1488720A (en) * 1976-02-13 1977-10-12 Neil & Spencer Ltd Dry cleaning
GB2094961A (en) * 1981-02-13 1982-09-22 Perlino Antonio Drying apparatus
DE3412284A1 (de) * 1984-04-02 1985-10-10 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co. KG, 7000 Stuttgart Verfahren zum betrieb eines kondensations-waeschetrockners
EP0328250A1 (de) * 1988-01-13 1989-08-16 Creda Limited Trommeltrockner
DE4216106A1 (de) * 1992-05-15 1993-11-18 Licentia Gmbh Wäschetrockner mit einem Wärmepumpenkreis
DE19904993A1 (de) * 1999-02-08 2000-08-10 Miele & Cie Kondensationswäschetrockner

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1981234A (en) * 1931-04-23 1934-11-20 American Laundry Mach Co Apparatus for cleaning fabric
US3032887A (en) * 1958-05-02 1962-05-08 Gen Motors Corp Clothes drier
GB1488720A (en) * 1976-02-13 1977-10-12 Neil & Spencer Ltd Dry cleaning
GB2094961A (en) * 1981-02-13 1982-09-22 Perlino Antonio Drying apparatus
DE3412284A1 (de) * 1984-04-02 1985-10-10 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co. KG, 7000 Stuttgart Verfahren zum betrieb eines kondensations-waeschetrockners
EP0328250A1 (de) * 1988-01-13 1989-08-16 Creda Limited Trommeltrockner
DE4216106A1 (de) * 1992-05-15 1993-11-18 Licentia Gmbh Wäschetrockner mit einem Wärmepumpenkreis
DE19904993A1 (de) * 1999-02-08 2000-08-10 Miele & Cie Kondensationswäschetrockner

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007093543A1 (de) * 2006-02-17 2007-08-23 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung und verfahren zum trocknen eines gutes
WO2008003590A1 (de) * 2006-07-06 2008-01-10 BSH Bosch und Siemens Hausgeräte GmbH Hausgerät zur pflege von wäschestücken und verfahren zum leiten von kühlluft in einem solchen hausgerät
EP1925713A1 (de) * 2006-11-24 2008-05-28 CANDY S.p.A. Wäschetrockner mit zusätzlicher Kammer mit Temperaturkontrolle für Feinwäsche
EP1925714A1 (de) * 2006-11-24 2008-05-28 CANDY S.p.A. Vorrichtung und Verfahren zur Regelung des Trockenluftstroms in einem Wäschetrockner
US8438751B2 (en) 2007-03-12 2013-05-14 Bsh Bosch Und Siemens Hausgeraete Gmbh Dryer with heat recovery and method of operation thereof
WO2008110449A1 (de) * 2007-03-12 2008-09-18 BSH Bosch und Siemens Hausgeräte GmbH Trockner mit wärmerückgewinnung sowie verfahren zu seinem betrieb
EP1990464A1 (de) * 2007-05-09 2008-11-12 CANDY S.p.A. Wäschetrockner mit einem temperaturgesteuerten zusätzlichen Trocknungsschrank und Verfahren zur Trocknung in diesem Trocknungsschrank.
EP2366827A1 (de) * 2010-03-18 2011-09-21 Askoll Holding S.r.l. Gebläse- und Antriebseinheit für einen Kondensations-Wäschetrockner und Kondensations-Wäschetrockner mit einer solchen Einheit
CN102191658A (zh) * 2010-03-18 2011-09-21 阿思科尔控股责任有限公司 冷凝器干衣机用风扇马达组件及包括其的冷凝器干衣机
US9683324B2 (en) 2010-03-18 2017-06-20 Askoll Holding S.R.L. Fans-motor assembly for condenser laundry dryer machine and condenser laundry dryer machine comprising said assembly
CN102191658B (zh) * 2010-03-18 2016-05-11 阿思科尔控股责任有限公司 冷凝器干衣机用风扇马达组件及包括其的冷凝器干衣机
CN102477687A (zh) * 2010-11-26 2012-05-30 博西华电器（江苏）有限公司 衣物烘干设备
EP2458068A1 (de) * 2010-11-26 2012-05-30 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrocknungsanlage mit Gebläse
WO2012089603A3 (en) * 2010-12-31 2013-06-06 Arcelik Anonim Sirketi A laundry dryer
FR2972787A1 (fr) * 2011-03-16 2012-09-21 Pierre Brun Dispositif de traitement d'air humide et procede associe
WO2012123914A1 (fr) * 2011-03-16 2012-09-20 Pierre Brun Dispositif de traitement d'air humide et procede associe
WO2016113065A1 (de) * 2015-01-12 2016-07-21 BSH Hausgeräte GmbH Kondensationstrockner mit verbesserter trocknung und verfahren zu seinem betrieb
CN106637872A (zh) * 2015-10-28 2017-05-10 青岛海尔洗衣机有限公司 干衣机
EP3369858A4 (de) * 2015-10-28 2018-10-17 Qingdao Haier Washing Machine Co., Ltd. Wäschetrockner

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