EP1441060A1 - Sèche-linge avec un dispositif de pulvérisation des additifs et proédé pour ceci - Google Patents

Sèche-linge avec un dispositif de pulvérisation des additifs et proédé pour ceci Download PDF

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Publication number
EP1441060A1
EP1441060A1 EP03027117A EP03027117A EP1441060A1 EP 1441060 A1 EP1441060 A1 EP 1441060A1 EP 03027117 A EP03027117 A EP 03027117A EP 03027117 A EP03027117 A EP 03027117A EP 1441060 A1 EP1441060 A1 EP 1441060A1
Authority
EP
European Patent Office
Prior art keywords
air
additive
laundry
laundry drum
clothes 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Withdrawn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
EP03027117A
Other languages
German (de)
English (en)
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 EP1441060A1 publication Critical patent/EP1441060A1/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Withdrawn legal-status Critical Current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

Definitions

  • the invention relates to a clothes dryer, in particular one Exhaust air or condensation dryer, with a spray device for spraying at least one additive into a Drum of the dryer, and a method for Spray the laundry stored in the laundry drum with at least an additive.
  • EP 0 676 497 B1 describes a method for perfuming of laundry, spraying the fragrance onto the inside Clothes stored in the dryer in the area of the filler cap he follows.
  • the fragrance is made from a container by means of compressed air pressed to an atomizing nozzle, which in turn also. compressed air acts on the fragrance in the tumble dryer atomized.
  • DE 195 43 337 A1 also describes a tumble dryer a device for scenting the laundry, wherein the fragrance carrier from a storage vessel into the air flow or into the Drying room is metered added.
  • Both US 3,583,180 and US 3,002,288 are opposite to the outer circumference or to the side surface a washing drum arranged nozzles that a mechanical The device then operates a laundry treatment solution discharge towards the washing drum if the nozzle is opposite an inlet hole of the laundry drum past the nozzle becomes.
  • the mechanical effort is exact Loading the laundry with the solution is very time-consuming.
  • the laundry in Drying mode dried in a rotating laundry drum, through the air flow generated by a fan is directed.
  • the air flow passes through one Air inlet into the laundry drum and passes through an air outlet out of this.
  • the air intake and / or the air outlet has several individual openings for entry or escape of air.
  • a spray device for example a spray nozzle or the like, for spraying at least one additive into the laundry drum arranged.
  • the loading opening is advantageous at the same time the air outlet, so the construction of the laundry drum and the air flow is simplified.
  • a drying process of the dryer is carried out by means of a Control device controlled, for example the duration of the Drying process, the speed of the laundry drum and / or the switching on and off of an additional heating device.
  • the control device is during the spraying of the at least one additive the delivery rate of the fan reducible, the air flow can be switched off or the conveying direction of the fan reversible.
  • the spray device Additive not or only slightly from the laundry drum transported out so that the laundry with no or minimal Loss of additives with these evenly is acted upon.
  • an exhaust air dryer for example prevent the additives from entering the exhaust air and if necessary get into the ambient air.
  • the air flow is reversed when the spray device is arranged a distribution at the front of the laundry drum supported up to the back of the laundry drum.
  • An additive is, for example, a cleaning agent Fragrance, a disinfectant or just water whose use the laundry cleaned, refreshed, temporarily is moistened, perfumed and / or disinfected.
  • a cleaning agent Fragrance a disinfectant or just water whose use the laundry cleaned, refreshed, temporarily is moistened, perfumed and / or disinfected.
  • little worn laundry can be worn such a humidification, ventilation, perfuming or Refresh the drying process again without a washing cycle in a washing machine would be necessary.
  • the nozzle in the upper front area of the laundry drum is advantageous arranged so that by the spraying speed and gravity one from top to front diagonally running spray mist at the bottom. Thereby, that at least one further spray device for spraying is provided depending on the current Alternatively or in addition, another laundry drying mode Additive to be sprayed onto the laundry.
  • the or one of the additives is very particularly advantageous Water, which from a condensation dryer is supplied to a condensation water tank. So that decreased maintenance effort to provide for the user of the additive water.
  • One or more of the spray devices is advantageous assigned a heating device with which the additive or additives are heatable. For example, only through the Heating the additive to enable or use solid additives are in the liquid or vapor Phase transferred. Next to it is by heating water Steam can be generated, which is then used to disinfect the laundry or can be used to activate another additive.
  • the clothes dryer advantageously has a metering device to adjust the amount of sprayed by the sprayer Additive. For example, in Depending on the load or the type of laundry optimal amount of additive sprayed into the laundry drum become.
  • a particularly uniform and fine feed of the additive is electromagnetic by using an or ultrasonically excited atomizer. In order to becomes a concentrated or uneven loading avoided washing with drops.
  • the washing drum and the fan can be driven independently; so that yourself their speeds or speed ratio for the spraying process get optimized.
  • the laundry drum rotated at nominal or slightly reduced speed while the fan only by a very low speed maintain minimal air movement inside the drum receives.
  • the dryer has a lockable exhaust air flap that prevents airflow out of the laundry drum, For example, with an exhaust air dryer the penetration of the additives and thus the reduction prevent their effectiveness in washing, while in one Condensation dryer using the exhaust air flap Recirculation mode can be switched off and thus an entry of the additives is avoidable in the condensation device.
  • has the tumble dryer has a switching device for switching between exhaust air and recirculation mode, for example to freshen up little worn clothes at first odorants are removed from clothing in the exhaust air mode, while the clothes are then in recirculation mode with cleaning agents and / or fragrances.
  • the laundry is by means of at least one spray device at the air outlet and / or on sprayed the loading opening of the laundry drum.
  • spraying of the additive is the air flow through the laundry drum is reduced, turned off or the airflow vice versa, so that a removal of the at least one additive from the laundry drum largely avoided and the fragrance essentially within the laundry drum is held back so that it is efficient there can act on the laundry.
  • Fig. 1 shows schematically the arrangement of a part of the elements an exhaust air dryer 1.
  • Store in a laundry drum 2 Laundry to dry or especially to refresh or for dry cleaning.
  • the dry mode is based on conventional Way through a supply air duct 3 air to the inside of the Laundry drum 2 supplied, the supply air duct 3 the outer circumference and encloses the back of the drum 2.
  • the Air penetrates through a variety of air holes on the outer circumference and into the back of the laundry drum (not shown).
  • a process fan 4 is located in the supply air duct 3 arranged, which is driven by a motor 5 and the Supply air flow 7 generated.
  • a loading hatch 8 arranged, which also serves as an air outlet.
  • a filter can also be arranged for Catching the lint or other contaminants with the exhaust air 9 are carried out of the laundry drum 2.
  • the laundry drum 2 is driven by a separate motor 10, so that the speeds of the laundry drum 2 and the Process fans 4 can be set independently of each other.
  • a spray device 11 sprays over a spray tube 12 which is a maximum of a few centimeters long, a cleaning agent 14 at the upper front of the air outlet 8. Of the Nozzle on the front of the spray tube 12 spreads Spray cloud from the front, diagonally backwards and downwards, see above that the laundry in the laundry drum 2 with the atomized Cleaning agent 14 is applied.
  • the detergent 14 is the spray device 11 from a container 13 on a feed line 15 is supplied.
  • the spray device 11 comprises one electromagnetically excited or one using ultrasound excited atomizer that fine the detergent atomized so that a spatially concentrated drop of the Detergent 14 on the laundry is prevented.
  • the length of the spray tube 12 is kept short, so that when the Atomizer 11 deposits little detergent 14 there.
  • the spray device immediately with a nozzle outlet at the air outlet 8 arranged.
  • the spray device 11 is, for example integrated in the flap of the tumble dryer.
  • several can Containers 13 can be provided, in which various additives be stocked, which can be opened and Closing valves of the spray device 11 are supplied.
  • a cleaning agent for example, is used as an additive used, which serves to support cleaning. Or a Fragrance that after drying and / or after cleaning the laundry is fed to the laundry drum to the laundry perfume.
  • the process fan 4 is stopped or even turns in the opposite direction.
  • the reduction, cancellation or reversal the speed of the process fan 4 can be advantageous even after spraying in the additive for a given one Exposure time continues, so that the additive distributed within the drum 2 and there increased concentration on the laundry.
  • the process fan 4 control so that this with nominal speed and direction of rotation resumes operation around the Continue drying process and / or leftovers and waste products to remove the additive.
  • the process fan 4 control so that this with nominal speed and direction of rotation resumes operation around the Continue drying process and / or leftovers and waste products to remove the additive.
  • the process fan 4 control so that this with nominal speed and direction of rotation resumes operation around the Continue drying process and / or leftovers and waste products to remove the additive.
  • the process fan 4 control so that this with nominal speed and direction of rotation resumes operation around the Continue drying process and / or leftovers and waste products to remove the additive.
  • the process fan 4 control so that this with nominal speed and direction of rotation resumes operation around the Continue drying process and / or leftovers and waste products to remove the additive.
  • the process fan 4 control so that this with nominal speed and direction of rotation resumes operation around the Continue drying process and / or leftovers and waste products to remove the additive.
  • the process fan 4 control so that this with nominal speed and direction of rotation resumes operation around the
  • the heating 6 be switched off.
  • the heater 6 is switched off, when the process fan 4 is stopped.
  • the fan 4 the heater 6 can be turned on, so that the throttled Airflow heated.
  • the process fan 4 is running in the opposite direction, so by turning on the heater 6 residues or residues of the additive removed or be implemented.
  • an alternative or in addition to controlling the heating power during spraying or during the exposure time of the additive the speed of the laundry drum 2 is reduced, so that on the one hand a distribution of the additive over that in the Laundry drum 2 laundry is done while by the reduced speed a gentle action, for example one Detergent is effected.
  • Fig. 2 shows schematically the arrangement of a part of the elements a condensation dryer 20.
  • the dryer 1 of FIG. 1 is stored in a laundry drum 22 treating laundry and supply air via an air inlet duct 23 fed into the interior of the laundry drum 22.
  • the supply air flow is generated by a process fan 24, which by a Motor 25 is driven.
  • a heater 26 is arranged.
  • the process fan 24 is a radiator fan 27 with the motor 25 connected, the cooling air flow from the radiator fan 27 a Heat exchanger 29 cools.
  • 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 a condensation tank assigned to collect the condensate.
  • the supply air supplied to the laundry drum 22 emerges from a Air outlet 28 or a loading hatch of the laundry drum 22 as Exhaust air 38 into the exhaust air duct 35.
  • an exhaust air flap 36 and a fresh air flap 37 are arranged, in the pure recirculation mode, both the exhaust flap 36 and also 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 flap 36 is open so that the exhaust air flow 38 is not in the air circuit circulated.
  • the flaps 36, 37 Intermediate positions, so that part of the exhaust air 38 from the exhaust flap 36 exits and another part on the partially opened fresh air flap 37 over to the heat exchanger 29 arrives.
  • the amount of air discharged through the exhaust flap 36 is by flowing in at the fresh air flap 37 Frischluft.erthe.
  • an injector or a spray device 31 one or more additives via a spray tube 32 sprayed into the laundry drum 22.
  • the configurations the spray device 31 correspond to the above Spray device 11 described.
  • a steam generator 33 provided, via a supply line 34 with condensation water from the condensation tank of the heat exchanger 29 is supplied.
  • One version is the steam generator 33 in the front upper part of the dryer in arranged near the air outlet 28. In this case a fog from the water supplied through an atomizer generated and fed into the interior of the laundry drum 22.
  • the steam generator 33 can have a heating device, which heats the atomized water or the water before the atomizing heated, so that instead of the fog one Vapor forms, which acts as an activating additive in the interior of the drum is fed.
  • the steam generator 33 is arranged next to the condensation container and via an atomizer / pump device Water atomized and via a line 39 in the laundry drum 22 fed.
  • the water can evaporate through the heater and thus are fed as superheated steam into the inside of the drum.
  • FIG. 1 wherein the steam generator 33 the water through a separate water reservoir is fed.
  • the dry cleaning process in particular allows textiles or clothing intended for washing in one Household washing machine or by hand wash not suitable are refreshed in the tumble dryer and / or on gentle Way to be cleaned.
  • the effectiveness of the cleaning or Refreshing process can be optimized by optimizing the Speed of the blower and the laundry drum with regard to the sequence of movements and set air flow independently.
  • cleaning or refreshing can additionally in the laundry drums 2, 22 of Fig. 1 and 2 internals can be provided inside the drum.
  • dirt-absorbing Materials such as a cleaning fleece
  • the provision of brushes on the inside ribs of the drum and / or one special surface condition of a coarse sieve that the air outlets 8, 28 is arranged.
  • the tumble dryer designs described above enable thus a program run "drying”, a program run “Cleaning”, a program run “disinfection” (if necessary together with the cleaning program) and a program run "refresh”.
  • the program runs can be combined with each other in any order and optimizable e.g. with regard to spray quantity, exposure time, amount of circulating air and direction, amount of fresh air supplied and other program parameters.
  • Fig. 3 shows a further embodiment of the exhaust air / recirculation with a condensation dryer like her can be used for example in the arrangement of FIG. 2.
  • the laundry drum 41 of the condensation dryer 40 is about a supply air duct 42 is supplied with supply air. This leaves as exhaust air the laundry drum 41 in the exhaust duct 43.
  • Through an outlet duct 44 can be a function of the valve position Changeover valve 48 the exhaust air from the laundry drum 41st completely, partially or not at all.
  • a corresponding one Part of the exhausted air is fresh air replaced from a fresh air duct 45.
  • a rotary flap 47 is pivotally mounted, this with intermediate positions between a first position I and a second position II can be transferred.
  • the clothes dryer 40 works as an exhaust air dryer, the Exhaust air completely from the exhaust air duct 43 into the outlet duct 44 is diverted, while in the supply air duct 42 only fresh air comes out of the fresh air duct 45.
  • the tumble dryer 40 works exclusively in a circulating air process, the exhaust air from the exhaust air duct 43 completely flows into the supply air duct 42.
  • Fig. 2nd are a heating device in the supply air duct, a process fan and optionally a heat exchanger 29 is arranged.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP03027117A 2003-01-25 2003-11-26 Sèche-linge avec un dispositif de pulvérisation des additifs et proédé pour ceci Withdrawn EP1441060A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10302866 2003-01-25
DE10302866A DE10302866B4 (de) 2003-01-25 2003-01-25 Wäschetrockner mit einer Einrichtung zum Einsprühen von Zusätzen und Verfahren hierfür

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EP1441060A1 true EP1441060A1 (fr) 2004-07-28

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EP1852540A1 (fr) * 2006-05-02 2007-11-07 Electrolux Home Products Corporation N.V. Machine à sécher avec un programme de séchage utilisant un additif
EP1852542A1 (fr) 2006-05-02 2007-11-07 Electrolux Home Products Corporation N.V. Machine à sécher avec un programme de séchage modifié
EP1852539A1 (fr) 2006-05-02 2007-11-07 Electrolux Home Products Corporation N.V. Programme de séchage à phase anti-froissement et sèche-linge
EP1852541A1 (fr) * 2006-05-02 2007-11-07 Electrolux Home Products Corporation N.V. Séche-linge à séquence de séchage utilisant un additif
EP1862575A1 (fr) * 2006-06-01 2007-12-05 Electrolux Home Products Corporation N.V. Appareil ménager avec une unité à vapeur construite comme un module
EP1862584A1 (fr) 2006-06-01 2007-12-05 Electrolux Home Products Corporation N.V. Appareil ménager avec un réservoir d'eau
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EP2071071A1 (fr) 2007-12-12 2009-06-17 Electrolux Home Products Corporation N.V. Dispositif et procédé de traitement de vêtements
EP2080832A1 (fr) * 2008-01-16 2009-07-22 Electrolux Home Products Corporation N.V. Appareil de traitement du textile ayant un tambour rotatif
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US20100322819A1 (en) * 2007-07-10 2010-12-23 Kim Pyoung-Hwan Removing method of smells
EP2280114A1 (fr) * 2009-07-31 2011-02-02 Lg Electronics Inc. Sèche-linge doté d'une buse d'injection de liquides
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US8104191B2 (en) 2008-07-31 2012-01-31 Electrolux Home Products, Inc. Laundry dryer providing moisture application during tumbling and reduced airflow
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DE102013101391A1 (de) 2013-02-13 2014-08-14 Miele & Cie. Kg Wäschetrockner mit einer Sprüheinrichtung zur Rückbefeuchtung der getrockneten Wäsche
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US8832966B2 (en) 2009-02-19 2014-09-16 Whirpool Corporation Laundry treating appliance with fluffing-state detection
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