EP1950339A2 - Sèche-linge à circulation d'air et procédé de traitement du linge - Google Patents

Sèche-linge à circulation d'air et procédé de traitement du linge Download PDF

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Publication number
EP1950339A2
EP1950339A2 EP08007672A EP08007672A EP1950339A2 EP 1950339 A2 EP1950339 A2 EP 1950339A2 EP 08007672 A EP08007672 A EP 08007672A EP 08007672 A EP08007672 A EP 08007672A EP 1950339 A2 EP1950339 A2 EP 1950339A2
Authority
EP
European Patent Office
Prior art keywords
laundry
air
laundry drum
additive
dryer
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Withdrawn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
EP08007672A
Other languages
German (de)
English (en)
Other versions
EP1950339A3 (fr
Inventor
Hansjörg Lampe
Hans-Joachim Klug
Dieter Schmidt
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
Publication of EP1950339A2 publication Critical patent/EP1950339A2/fr
Publication of EP1950339A3 publication Critical patent/EP1950339A3/fr
Withdrawn legal-status Critical Current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 
    • D06F58/203—Laundry conditioning 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/30—Drying processes 
    • 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
    • D06F2103/28—Air properties
    • D06F2103/36—Flow or velocity
    • 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
    • D06F2105/16—Air properties
    • D06F2105/24—Flow or velocity
    • 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
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis

Definitions

  • the invention relates to a tumble dryer, in particular a condensation dryer, with a generated by a fan circulating air flow for drying laundry, and a method for treating laundry in a tumble dryer.
  • the EP 0 676 497 B1 describes a method for perfuming laundry, wherein a spraying of the fragrance on the clothes stored in the laundry dryer laundry in the region of the filler cap.
  • a spraying of the fragrance By means of compressed air, the fragrance is pressed from a container to a spray nozzle, which in turn, pressurized by compressed air atomizes the fragrance in the tumble dryer.
  • DE 195 43 337 A1 describes a clothes dryer with a device for scenting the laundry, wherein the fragrance carrier is metered from a storage vessel into the air stream or in the drying room.
  • Both at the US 3,583,180 as well as at the US 3,002,288 are arranged opposite to the outer periphery or to the side surface of a laundry drum nozzles, which operated via a mechanical device then deliver a laundry treatment solution in the direction of the laundry drum, when the nozzle passes an inlet hole of the laundry drum opposite the nozzle becomes.
  • the mechanical effort for the exact loading of the laundry by means of the solution is very complex.
  • a clothes dryer on a rotatably mounted laundry drum with at least one air inlet and at least one air outlet.
  • air passes to the laundry stored in the laundry drum by a plurality of air inlets on the outer circumference and / or on the back of the laundry drum and is advantageously omitted by the loading hatch or opening as an air outlet.
  • a fan By a fan, an air flow through the laundry drum can be generated.
  • pure recirculation mode the air discharged from the air outlet is guided through an air duct back to the air inlets, so that there is a closed air circuit.
  • the laundry is efficiently dried by the constant flow of air and the recorded humidity, for example excreted in a condensate dryer in a condenser.
  • the air flow from Umbuch devis in an exhaust air mode is switched, in which at least a portion of the discharged from the air outlet or the air outlets is led out of the tumble dryer.
  • the laundry In the exhaust air operation, the laundry can be refreshed, for example, when little-worn laundry is odor-stressed and only the smell, such as body odor, should be removed from the laundry.
  • a disinfection process can be carried out, for example with steam, so that an enrichment of the water vapor in the laundry drum can be prevented, as would be the case for example in pure recirculation mode.
  • cleaning agents, disinfectants, other fragrances or their residues from the laundry drum or the air circulation system can be removed and blown off as exhaust air during the exhaust air operation.
  • a circulating clothes dryer can be easily used for other laundry treating methods such as refreshing the laundry or dry cleaning for treating delicate laundry which can not be cleaned in a washing machine.
  • the switching device both between a pure recirculation mode, in which no fresh air is supplied or exhaust air is discharged, a pure exhaust air operation, in which the discharged from the air outlet exhaust air is completely discharged to the outside, as well as a mixed mode switchable, in which an intermediate position only a part of the exhaust air is omitted.
  • a pure recirculation mode in which no fresh air is supplied or exhaust air is discharged
  • a pure exhaust air operation in which the discharged from the air outlet exhaust air is completely discharged to the outside
  • a mixed mode switchable in which an intermediate position only a part of the exhaust air is omitted.
  • the delivery rate of the fan to maintain the air flow through the laundry drum adjustable, switched off or its delivery direction reversible, so can be reduced or reversed, for example, during the spraying of superheated steam for disinfection or a detergent for dry cleaning, the air flow or vice versa, so that on the one hand the detergent or the Disinfectant is kept as concentrated as possible in the laundry drum or is efficiently distributed in reverse of the air flow within the laundry drum.
  • the laundry drum can be driven independently of the fan during such an operation, then the laundry drum can continue to be driven when the fan is switched off in order to distribute the detergent or disinfectant evenly over the laundry.
  • the tumble dryer has at least one spraying device with which an additive can be sprayed onto the laundry stored in the laundry drum.
  • an additive disinfecting, dry cleaning or perfuming the laundry is executable.
  • the recirculation mode the exhaust air mode or a mixed mode is set according to the desired effect. additionally As described above, the air flow through the laundry drum can be reduced, turned off or reversed. Switching between circulating air and exhaust air or mixed operation and adjusting the strength and / or direction of the air flow is advantageously varied over time also during the different phases of action of an additive. For example, in the case of a cleaning agent as an additive, first the air flow is stopped until the cleaning agent has acted completely on the laundry and thereafter the exhaust air operation is started, so that residues of the cleaning agent and decomposition products are removed from the laundry.
  • the condensation water can advantageously be supplied to a spraying device which sprays the water as steam or mist into the laundry drum.
  • a spraying device which sprays the water as steam or mist into the laundry drum.
  • other sprayed into the laundry drum additives can be activated or the water can be used as hot steam for disinfecting.
  • one or more of the spraying devices has a heating device for heating the additive, so that it is activated by the heating or its effect is increased.
  • the led out of the laundry drum air is at least partially discharged to the outside of the tumble dryer and treated in another phase, the laundry in the recirculation mode or switched off airflow with at least one additive.
  • the two phases can be used in different orders depending on the selected treatment method for the laundry, or alternately depending on the current treatment phase. For example, when refreshing the laundry initially worked in the exhaust air operation, while a perfuming of the laundry is done with disconnected airflow.
  • Fig. 1 schematically shows the arrangement of a part of the elements of a vented dryer 1.
  • a laundry drum 2 stores laundry for drying or here especially for refreshment or for dry cleaning.
  • air is supplied to the interior of the laundry drum 2 in a conventional manner by a supply air duct 3, wherein the supply air duct 3 surrounds the outer periphery (not shown) and the back of the laundry drum 2. The air penetrates through a plurality of air holes on the outer circumference (not shown) and at the back of the laundry drum in this.
  • a process fan 4 is arranged, which is driven by a motor 5 and generates the supply air stream 7.
  • a heater 6 is arranged in the supply air duct 3 in order to heat the supply air flow when required.
  • a hatch 8 is arranged, which also serves as an air outlet.
  • a filter may additionally be arranged for Collecting the lint or other contaminants that are carried out of the laundry drum 2 with the exhaust air 9.
  • the laundry drum 2 is driven by a separate motor 10, so that the rotational speeds of the laundry drum 2 and the process fan 4 are independently adjustable.
  • a spraying device 11 sprays a cleaning agent 14 on the upper front side of the air outlet 8 via a spray tube 12, which is only a few centimeters long. From the nozzle at the front of the spray tube 12, a spray cloud spreads obliquely rearwards from above in front, so that the laundry in the laundry drum 2 is supplied with the atomized cleaning agent 14.
  • the cleaning agent 14 is supplied to the spraying device 11 from a container 13 via a feed line 15.
  • the spraying device 11 comprises an electromagnetically excited or ultrasonically excited atomizer which finely atomizes the cleaning agent so that spatially concentrated dripping of the cleaning agent 14 onto the laundry is prevented.
  • the length of the spray tube 12 is kept short so that there is little detergent 14 deposited when the atomizer 11 is turned off.
  • the spraying device is arranged directly with a nozzle outlet at the air outlet 8.
  • the spraying device 11 is integrated, for example, in the flap of the tumble dryer.
  • a plurality of containers 13 may be provided, in which various additives are stored, which are optionally supplied by opening and closing valves of the sprayer 11.
  • a cleaning agent is used, which serves for cleaning assistance.
  • a Perfume which is supplied after drying and / or after cleaning the laundry of the laundry drum to perfume the laundry.
  • the speed of the process fan 4 is significantly reduced during injection compared to the speed in the drying mode, for example to 20% of the nominal speed, the process fan 4 is stopped or even turns in the opposite direction.
  • a reduced, non-existing or reverse supply air flow 7 through the supply air channel 3 and the sprayed additive is only slightly or not transported by the exhaust air stream 9 from the laundry drum 2 out.
  • the reduction, shutdown or reversal of the speed of the process fan 4 can advantageously also be continued after the injection of the additive for a predetermined exposure time, so that the additive is distributed within the laundry drum 2 and there acts at elevated concentration on the laundry.
  • the program sequence control of the control device can then control the process fan 4 in such a way that it resumes its operation at nominal rotational speed and direction in order to continue the drying process and / or to remove residues and waste products of the additive.
  • the residues of the cleaning agent or process residues with the exhaust air 9 can be removed.
  • the treatment of the laundry in the tumble dryer is completed with the spraying or the following exposure time.
  • the process fan is not switched on again, so that the fragrance stays in the laundry and it can be perfumed sparingly.
  • the heater 6 may be switched off. For example, the heater 6 is turned off when the process fan 4 is stopped. On the other hand, if the additive requires heating for optimal development of its effect, the heater 6 can be switched on at reduced speed of the fan 4, so that it heats the throttled air flow. If, on the other hand, the process fan 4 is running in the opposite direction, residues or residues of the additive can be removed or converted by switching on the heater 6.
  • the speed of the laundry drum 2 is reduced, so that on the one hand, a distribution of the additive on the stored laundry drum 2 in the laundry, while by the reduced speed, a gentle action, for example, a cleaning agent is effected.
  • Fig. 2 schematically shows the arrangement of a part of the elements of a condensation clothes dryer 20.
  • the tumble dryer 1 of Fig. 1 stored in a laundry drum 22, the laundry to be treated and a supply air duct 23 supply air is supplied to the interior of the laundry drum 22.
  • the supply air flow is generated by a process fan 24, which is driven by a motor 25.
  • a heater 26 is arranged in the region of the supply air duct 23.
  • a radiator fan 27 is connected to the engine 25, wherein the cooling air flow from the radiator fan 27 cools a heat exchanger 29.
  • the heat exchanger 29 is in the circulating air circuit between the supply air duct 23 and an exhaust air duct 35 arranged and the heat exchanger is associated with a condensation container for collecting the condensate
  • the laundry drum 22 supplied air exits an air outlet 28 and a loading hatch of the laundry drum 22 as exhaust air 38 in the exhaust duct 35 from.
  • an exhaust air flap 36 and a fresh air flap 37 is arranged, wherein in the pure recirculation mode, both the exhaust air flap 36 and the fresh air flap 37 are closed.
  • the fresh air flap 37 closes the exhaust air duct 35 to the heat exchanger 39, while the exhaust air flap 36 is open, so that the exhaust air stream 38 does not circulate in the air circulation.
  • the flaps 36, 37 take intermediate positions, so that a part of the exhaust air 38 exits the exhaust air flap 36 and another part passes to the partially opened fresh air flap 37 to the heat exchanger 29.
  • the amount of air discharged through the exhaust damper 36 is replaced by fresh air flowing in the fresh air damper 37.
  • a spray device 31 is sprayed through an injector or a spray device 31 one or more additives via a spray pipe 32 into the laundry drum 22.
  • the embodiments of the spray device 31 correspond to those described above for the spray device 11.
  • a steam generator 33 is provided, which is supplied via a supply line 34 with condensation water from the condensation tank of the heat exchanger 29.
  • the steam generator 33 is arranged in the front upper part of the tumble dryer in the vicinity of the air outlet 28. In this case, a mist is generated from the supplied water via an atomizer and fed into the interior of the laundry drum 22.
  • the steam generator 33 may have a heating device which heats the atomized water or heats the water before spraying, so that instead of the mist forms a vapor which is supplied as an activating additive into the laundry drum interior.
  • the steam generator 33 is arranged next to the condensation tank and via a nebulizer / pumping device, the water is atomized and fed via a line 39 into the laundry drum 22.
  • the water can be vaporized by the heater and thus supplied as superheated steam inside the laundry drum.
  • a steam generator 33 or water atomizer is readily available in the execution of Fig. 1 can be used, wherein the steam generator 33, the water is supplied through a separate water reservoir.
  • the process fan 24 is operated at reduced speed, turned off or operated in the reverse direction. If sprayed with closed flaps 36, 37, so also stopping the process fan 24 and the reduction of its speed prevents the removal of the additive and optionally a condensation of the additive in the heat exchanger 29. This is a carryover of the additives in the circulation system (supply air duct 23 and exhaust duct 35).
  • the operation of the heater 26 and the motor 30 for rotating the laundry drum 22 may be performed in accordance with the heater 6 and the engine 10 in FIG Fig. 1 respectively.
  • additives such as fragrances, disinfectants, cleaning agents or the like can be sprayed into the laundry drum 22. Dosing of the additives takes place by time control of a metering valve in the case of liquid additives or a conveyor between the reservoir and spray in the case of solid additives.
  • textiles or items of clothing which are unsuitable for washing in a household washing machine or by hand washing can be refreshed in the tumble dryer and / or cleaned in a gentle manner by the dry cleaning method.
  • the effectiveness of the cleaning or refreshing process can be adjusted independently of each other by separately optimizing the speed of the fan and the laundry drum with regard to movement sequence and air throughput.
  • To further optimize the cleaning or refreshment can additionally in the laundry drums 2, 22 of the Fig. 1 and 2 Be provided internals in the drum interior.
  • a lining of the drum with dirt-absorbing materials such as a cleaning fleece, the provision of brushes on inner ribs of the drum and / or a special surface texture of a coarse screen, which is arranged on the air outlets 8, 28.
  • the above-described embodiments of the tumble dryer thus enable a program run "drying", a program run “cleaning”, a program run “sterilization” (possibly together with the cleaning program) and a program run "refresh".
  • the program runs can be combined with one another in any order and optimized, e.g. regarding injection quantity, exposure time, circulating air quantity and direction, amount of supplied fresh air and other program parameters.
  • Fig. 3 shows a further embodiment of the exhaust air / circulating air duct in a condensation clothes dryer, as for example in the arrangement of Fig. 2 can be used.
  • the laundry drum 41 of the condensation dryer 40 is supplied via a supply air duct 42 supply air. This exits the laundry drum 41 in the exhaust air duct 43 as exhaust air.
  • the exhaust air from the laundry drum 41 can be completely, partially or not discharged through an outlet duct 44 as a function of the valve position of a changeover valve 48. A corresponding part of the exhaust air discharged is replaced by fresh air from a fresh air duct 45.
  • a rotary flap 47 is pivotally mounted, which can be transferred with intermediate positions between a first position I and a second position II.
  • the tumble dryer 40 operates as a vented dryer, wherein the exhaust air is completely diverted from the exhaust duct 43 into the outlet channel 44, while in the supply air duct 42 only fresh air from the fresh air duct 45 passes.
  • the tumble dryer 40 operates exclusively in the recirculation method, wherein the exhaust air from the exhaust air duct 43 flows completely into the supply air duct 42.
  • Corresponding Fig. 2 are in the supply air duct, a heater, a process fan and optionally a heat exchanger 29 are arranged.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP08007672A 2003-01-25 2003-11-26 Sèche-linge à circulation d'air et procédé de traitement du linge Withdrawn EP1950339A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10302864A DE10302864B4 (de) 2003-01-25 2003-01-25 Wäschetrockner mit Umluftbetrieb und Verfahren zur Behandlung von Wäsche
EP03027118A EP1441058B1 (fr) 2003-01-25 2003-11-26 Sèche-linge avec un mode de circulation d'air

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP03027118.3 Division 2003-11-26
EP03027118A Division-Into EP1441058B1 (fr) 2003-01-25 2003-11-26 Sèche-linge avec un mode de circulation d'air
EP03027118A Division EP1441058B1 (fr) 2003-01-25 2003-11-26 Sèche-linge avec un mode de circulation d'air

Publications (2)

Publication Number Publication Date
EP1950339A2 true EP1950339A2 (fr) 2008-07-30
EP1950339A3 EP1950339A3 (fr) 2010-04-21

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EP08007672A Withdrawn EP1950339A3 (fr) 2003-01-25 2003-11-26 Sèche-linge à circulation d'air et procédé de traitement du linge
EP03027118A Expired - Lifetime EP1441058B1 (fr) 2003-01-25 2003-11-26 Sèche-linge avec un mode de circulation d'air

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Application Number Title Priority Date Filing Date
EP03027118A Expired - Lifetime EP1441058B1 (fr) 2003-01-25 2003-11-26 Sèche-linge avec un mode de circulation d'air

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EP (2) EP1950339A3 (fr)
DE (1) DE10302864B4 (fr)

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ATE539191T1 (de) * 2006-05-02 2012-01-15 Electrolux Home Prod Corp Trocknungsprogramm mit knitterschutzfunktion und trockner
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FR2914326B1 (fr) * 2007-03-27 2009-10-30 Brandt Ind Sas Machine a secher le linge a condensation comprenant une reserve interne pour alimenter un generateur de vapeur et procede associe
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DE102007046549B4 (de) * 2007-09-28 2022-06-09 BSH Hausgeräte GmbH Haushaltsgerät für Wäschepflege und Verfahren zum Ausrüsten von Waschgut in einem wasserführenden Haushaltsgerät
KR100921460B1 (ko) * 2007-11-02 2009-10-13 엘지전자 주식회사 건조기
EP2055824B1 (fr) * 2007-11-02 2014-07-30 LG Electronics Inc. Appareil de séchage
DE102008014305A1 (de) * 2008-03-14 2009-09-17 BSH Bosch und Siemens Hausgeräte GmbH Ablufttrockner mit Umluftanteil sowie Verfahren zu seinem Betrieb
DE102008032801B4 (de) 2008-07-11 2020-08-06 BSH Hausgeräte GmbH Abluftwäschetrockner
KR101072023B1 (ko) 2008-09-26 2011-10-10 엘지전자 주식회사 액체 저장 용기 및 그를 포함하는 의류 건조기
KR101056942B1 (ko) * 2008-09-26 2011-08-12 엘지전자 주식회사 진동자를 이용한 향 공급장치를 구비한 의류 건조기
KR101104531B1 (ko) * 2008-09-26 2012-01-11 엘지전자 주식회사 액체 저장 용기 및 그를 포함하는 의류 건조기
DE102008054548A1 (de) 2008-12-11 2010-06-17 BSH Bosch und Siemens Hausgeräte GmbH Trockner mit Umluftanteil sowie Verfahren zu seinem Betrieb
CN102405315B (zh) * 2009-05-05 2014-07-09 Bsh博世和西门子家用电器有限公司 具有蒸汽发生器的洗衣处理装置和处理待洗涤物品的方法
EP2855756B1 (fr) * 2012-06-05 2017-01-11 Arçelik Anonim Sirketi Sèche-linge ayant un condenseur refroidi par air
WO2013182403A1 (fr) * 2012-06-05 2013-12-12 Arcelik Anonim Sirketi Sèche-linge ayant un condenseur refroidi à l'air
JP2014150859A (ja) * 2013-02-06 2014-08-25 Panasonic Corp 衣類乾燥機
CN106149291A (zh) * 2015-04-28 2016-11-23 无锡小天鹅股份有限公司 衣物洗涤设备
DE102015107702B4 (de) * 2015-05-18 2017-11-23 Miele & Cie. Kg Wäschebehandlungseinheit und Verfahren zum Behandeln von Wäsche
DE102016110883A1 (de) * 2016-05-19 2017-11-23 Miele & Cie. Kg Wäschetrockner
CN110735309A (zh) * 2019-09-17 2020-01-31 青岛海尔滚筒洗衣机有限公司 干衣设备的空气洗控制方法
CN113106693B (zh) * 2020-01-13 2024-01-23 重庆海尔滚筒洗衣机有限公司 一种洗干一体机及其控制方法

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DE10302864B4 (de) 2010-08-05
EP1441058B1 (fr) 2012-09-26
EP1950339A3 (fr) 2010-04-21
EP1441058A1 (fr) 2004-07-28
DE10302864A1 (de) 2004-08-12

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