EP3074564B1 - Dampfwäschetrockner und verfahren zum betrieb davon - Google Patents

Dampfwäschetrockner und verfahren zum betrieb davon Download PDF

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Publication number
EP3074564B1
EP3074564B1 EP13801515.1A EP13801515A EP3074564B1 EP 3074564 B1 EP3074564 B1 EP 3074564B1 EP 13801515 A EP13801515 A EP 13801515A EP 3074564 B1 EP3074564 B1 EP 3074564B1
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EP
European Patent Office
Prior art keywords
steam
level
port
water
laundry 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.)
Not-in-force
Application number
EP13801515.1A
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English (en)
French (fr)
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EP3074564A1 (de
Inventor
Onur ERCAN
Murat Goktas
Onur Ozdemir
Can Sar
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Arcelik AS
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Arcelik AS
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Publication of EP3074564A1 publication Critical patent/EP3074564A1/de
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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 
    • D06F58/203—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 

Definitions

  • the present invention relates to a steam laundry dryer and a method for operating the same.
  • the present invention particularly relates to a water tank which feeds a steam generator and a method of replenishing the water tank.
  • the clothes are dried either by hanging them on a clothesline or alternatively by placing them into a laundry dryer which dehumidifies the clothes by treating them with heat.
  • the clothes In both cases the clothes generally develop wrinkles and creases as they are eventually dried.
  • the formation of wrinkles depend on several factors, including the material of the cloth and the physical conditions governing the drying process, such as heat and water as well as any strain acting on the clothes. It is common practice to utilize heat and steam to remove the wrinkles and the creases from the clothes. Therefore, irons are generally provided with steam injection facilities to smooth out the wrinkles and the creases. The customer will usually need to do some ironing work to smooth out the wrinkles and creases developed during the drying.
  • laundry dryers have been provided with steam injection facilities to remove the wrinkles and the creases by applying steam to the clothes.
  • the steam application is not particularly limited to removal of wrinkles and creases.
  • steam has a sanitizing effect.
  • steam can effectively remove odors. Therefore, in a laundry dryer, steam can be reasonably applied at any stage of the drying process to achieve the aforementioned effects.
  • WO 2008/013426 describes a laundry dryer having a steam generator selectively supplying steam to the drum and a water supply source having an accommodating part for storing water supplied to the steam generator and a water supply means for supplying the water within the accommodating part to the steam generator.
  • a conventional steam laundry dryer (1') comprises a drum (2') for receiving clothes, a motor (3') for rotating the drum (2'), a water/steam separator (4') having a steam injection port (4a'), a water outlet port (4b') and a water/steam inlet port (4c'), the steam injection port (4a') being arranged to open into the drum (2'), a steam generator (5') having a discharge port (6') for supplying pressurized water/steam to the water/steam inlet port (4c') and an intake port (7') for receiving water, the discharge port (6') being fluidly connected to the water/steam inlet port (4c') via a first conduit (8'), a water tank (9') having a feed port (10') for feeding water into the steam generator (5') and a replenishment port (11') for filling the water tank (9') with water, the feed port (10') being fluidly connected to said intake port (7') via a second conduit (12') and the replenishment port (11
  • the water column above the discharge port (6') is pushed into the water/steam separator (4').
  • the water/steam separator (4') prevents the inflowing water from being conveyed into the drum (2') and drains it into a reservoir (20') via the water outlet port (4b') and a conduit (21').
  • the initially generated steam is injected into the drum (2') not until before all of the water standing above the steam generator (5'), i.e., the water above level H1' has been drained off by means of the water/steam separator (4'). Thereby, the clothes in the drum (2') are prevented from becoming excessively wet.
  • a drawback of the above conventional steam laundry dryer (1') is that a manufacturing and an assembly of the water/phase separator (4') and the conduit (21') increase the overall costs.
  • Another drawback of this conventional steam laundry dryer (1') is that the steam supply into the drum (3') is delayed because of the water standing above the level H1'. Therefore, a total duration of the operation cycle must be prolonged to compensate for the delay and to supply the requisite amount of steam into the drum (2').
  • An objective of the present invention is to provide a steam laundry dryer and a method of operating a steam laundry dryer which overcomes the aforementioned drawbacks of the prior art and which has a simplified construction that enables the clothes to be effectively and reliably treated with steam.
  • the water tank has a discharge opening for draining excess water from the water tank.
  • the discharge opening of the water tank and the discharge port of the steam generator are arranged at a same level H1.
  • the controller is adapted to drain the excess water which stands above the level H1 via the discharge opening by controlling an opening/closing means prior to activating the steam generator.
  • the motor is activated so as to aerate and shuffle the clothes inside the drum.
  • the excess water which stands above the level H1 is gradually drained via the discharge opening by opening the opening/closing means.
  • the opening/closing means is closed and the steam generator is activated.
  • the steam delivered by the steam generator is supplied to the steam injection port which directs the pressurized stream onto the clothes inside the drum.
  • the steam laundry dryer has a water reservoir for collecting excess water which is drained from the water tank via the discharge opening.
  • the steam laundry dryer is provided with a pump for draining off the water reservoir.
  • the opening/closing means is configured by the pump or a solenoid valve.
  • the solenoid valve is arranged along a conduit which fluidly connects the discharge opening with the water reservoir. The pump or the solenoid valve is activated at a predetermined point in time of the cycle for a predetermined duration to drain off the excess water column standing above the steam generator.
  • the necessity to use a water/phase separator has been obviated. Instead a single steam injection port can be utilized. Thereby, the assembly of the steam laundry dryer has been simplified. By virtue of the discharge opening provided in the water tank any excess water can drained off. Thereby, the steam generator is enabled to supply steam into the drum from a beginning of its activation. By the present invention, the steam supply performance has been expedited and the duration of the drying cycle has been further reduced.
  • the steam laundry dryer (1) comprises: a drum (2) for receiving clothes; a motor (3) for rotating the drum (2), a steam injection port (4) which opens into the drum (2), a steam generator (5) which has a discharge port (6) for supplying pressurized steam to the steam injection port (4), and an intake port (7) for receiving water, wherein the discharge port (6) is fluidly connected to the steam injection port (4) via a first conduit (8), a water tank (9) which has a feed port (10) for feeding water into the steam generator (5), and a replenishment port (11) for filling the water tank (9) with water, wherein the feed port (10) is fluidly connected to said intake port (7) via a second conduit (12), and wherein the replenishment port (11) is fluidly connected to the water tank (9) via a third conduit (13) and a controller (14) for operating the motor (3) and the steam generator (5) ( Fig. 2 ).
  • the water tank (9) has a discharge opening (15) for draining excess water from the water tank (9) ( Fig. 2 ).
  • the discharge opening (15) of the water tank (9) and the discharge port (6) of the steam generator (5) are arranged at a same first level H1 ( Fig. 2 ).
  • the controller (14) is adapted to drain the excess water which stands above the first level H1 via the discharge opening (15) by controlling an opening/closing means prior to activating the steam generator (5) ( Fig. 2 ).
  • the steam generator (5) is not immediately activated after the steam laundry dryer (1) is put into operation.
  • the excess water standing above the first level H1 is gradually drained via the discharge opening (15) by controlling the opening/closing means.
  • the opening/closing means is kept open for the predetermined time, and subsequently closed. As the excess water has been drained off, the steam laundry dryer (1) is now ready to generate and supply steam.
  • the steam injection port (4) is supplied with pressurized steam by the steam generator (5) from the beginning of its activation. Thereby, the need for a water/steam separator (4') on a downstream side of the steam generator (5) is obviated. In conjunction therewith, the conduit (21') and any other components for fixing the same become completely superfluous. Thereby, the manufacturing process and the assembly process of the steam laundry dryer (1) has been substantially simplified.
  • the steam injection port (4) is arranged at a second level H2 such that the clothes in the drum (2) can be subjected to steam from the above.
  • the replenishment port (11) is arranged at a third level H3.
  • the third level H3 is chosen so as not to exceed the second level H2. Thereby, the water column rising in the first conduit (8) during the replenishment is prevented from spilling over the steam injection port (4) which is open to the atmosphere.
  • the third level H3 and the second level H2 are set to be higher than the first level H1 ( Fig. 2 ).
  • the third level H3 equals the second level H2 ( Fig. 2 ).
  • the replenishment port (11) is arranged at a highest level which allows, for example, a customer to easily replenish the water tank (9).
  • the present invention is not limited to this configuration.
  • the second level H2 is higher than third level H3.
  • a bottom (16) of the water tank (9) is arranged at a fourth level H4.
  • the intake port (7) of the steam generator (5) is arranged at a fifth level H5.
  • the fourth level H4 is higher than the fifth level H5 and lower than the first level H1 ( Fig. 2 ). Thereby, the water can be efficiently fed into the steam generator (5).
  • the steam laundry dryer (1) further comprises a lime container (17) for collecting lime.
  • the second conduit (12) is configured to fluidly connect the feed port (10) to the intake port (7) via the lime container (17).
  • a bottom (18) of the lime container (17) is arranged at a sixth level H6 which is lower than a fifth level H5 where the the intake port (7) is positioned ( Fig. 2 ). Thereby, the lime which is formed in the steam generator (5) can accumulate in the lime container (17).
  • the lime container (17) has an openable/closable discharge outlet (19) for draining the water inside the lime container (17).
  • the openable/closable discharge outlet (19) is configured as a cap (not shown).
  • the lime container (17) can be manually drained off before maintenance so as to completely evacuate the water tank (9), the steam generator (5), and the first to third conduits (8; 12; 13).
  • the steam laundry dryer (1) has a water reservoir (20) for collecting excess water drained from the water tank (9) via the discharge opening (15).
  • the discharge opening (15) is fluidly connected to the water reservoir (20) via a fourth conduit (21).
  • a pump (not shown) is provided to drain off the water reservoir (20).
  • the opening/closing means is configured by either the same pump or by a solenoid valve (22) which is arranged along the fourth conduit (21) ( Fig. 2 ).
  • controller (14) is further adapted to operate the pump so as to drain the water reservoir (20).
  • the replenishment port (11) is configured to allow manual filling of the water tank (9) with water ( Fig. 2 ).
  • the control method for operating the steam laundry dryer (1) comprises: a step of draining excess water which stands above the first level H1 via the discharge opening (15); and a step of generating and supplying pressurized steam to the steam injection port (4) after termination of the draining step.
  • control method further comprises: a step of rotating the drum (2) so as to aerate and shuffle the clothes.
  • the rotation step and the draining step are initiated concurrently.
  • the clothes are not subjected to steam during the initial aeration. Therefore, the draining step can be performed as the clothes are initially aerated.
  • the rotation step is initiated a predetermined duration before initiating the steam generating/supplying step. This duration is chosen such that the draining step can be completed prior to activation of the steam generator (5).
  • the steam injection port (4) immediately receives a pure burst of steam.
  • the steam application is not delayed as in the conventional technique where the excess water above the level H1' is initially drained via the water/steam separator (4') by the action of the steam generator (5'). Moreover, an unnecessary prolongation of the drying cycle is prevented.
  • the program according to the present invention comprises computer-readable codes for causing a steam laundry dryer (1) to execute the above-described method steps.
  • the overall configuration of the steam laundry dryer (1) has been simplified as the use of a water/steam separator (4') is obviated.
  • the steam laundry dryer (1) of the present invention can be more easily manufactured and assembled.
  • the steam generation and steam supply performance has been further improved.

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

Claims (14)

  1. Ein Dampfwäschetrockner (1) bestehend aus einer Trommel (2) für Aufnahme von Kleidungen, einem Motor (3) für Rotationder Trommel (2), einem Dampfeinspritzanschluss (4), der in die Trommel öffnet (2), einem Dampfgenerator (5), der einen Entladungsanschluss (6) besitzt für Versorgung von unter Druck stehendem Dampf zum Dampfeinspritzblock (4) und einem Einlasskanal (7) für Aufnahme von Wasser, wobei der Entladungsanschluss (6) flüssig verbunden ist mit Dampfeinspritzanschluss (4) durch eine erste Rohrleitung (8), einem Wassertank (9), der eine Nachlaufbohrung (10) besitzt für Wasserzufuhr in den Dampfgenerator (5), und einem Nachfüllenanschluss (11) für das Füllen des Wassertanks (9) mit Wasser, wo die Nachlaufbohrung (10) flüssig verbunden ist zum besagten Einlasskanal (7) durch eine zweite Rohrleitung (12), und wobei der Nachfüllanschluss (11) flüssig verbunden ist zum Wassertank (9) durch eine dritte Rohrleitung (13), einem Regler (14) für Bearbeitung des Motors (3) und einem Dampfgenerator (5), dadurch gekennzeichnet, daß
    - der Wassertank (9) eine Entladungsöffnung (15) hat für den Abfluss von übermäßiges Wasser vom Wassertank (9), wobei die Entladungsöffnung (15) des Wassertanks (9) und der Entladungsanschluss (6) des Dampfgenerators (5) in einem demselben ersten Niveau H1 eingeordnet sind;
    - der Dampfeinspritzanschluss (4) ist an einem zweiten Niveau H2 eingeordnet; und der Nachfüllanschluss (11) ist an einem dritten Niveau H3 eingeordnet, wobei das dritte Niveau H3 nicht höher ist als das zweite Niveau H2, und wobei das dritte Niveau H3 und das zweite Niveau H2 höher als das erste Niveau H1 sind und
    - der Regler (14) ist angepasst für den Abfluss des übermäßigen Wassers, das über dem ersten Niveau H1 steht durch die Entladungsöffnung (15) bei Kontrolle einer Öffnung/Schließung bedeutet vor der Aktivierung des Dampfgenerators (5).
  2. Der Dampfwäschetrockner (1) nach dem Anspruch 1, dadurch gekennzeichnet, daß das dritte Niveau H3 gleich zum zweiten Niveau H2 ist.
  3. Der Dampfwäschetrockner (1) nach dem Anspruch 1, dadurch gekennzeichnet, daß das zweite Niveau H2 größer als das dritte Niveau H3 ist.
  4. Der Dampfwäschetrockner (1) nach den vorhergehenden Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß ein Grund (16) des Wassertanks (9) an einem vierten Niveau H4 eingeordnet ist; und der Einlasskanal (7) des Dampfgenerators (5) ist an einem fünften Niveau H5 eingeordnet, wobei das vierte Niveau H4 höher als das fünfte Niveau H5 und niedriger als das erste Niveau H1 ist.
  5. Der Dampfwäschetrockner (1) nach den vorhergehenden Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß sich ein Kalkbehälter (17) befindet für Versammlung von Kalk, wobei die zweite Rohrleitung (12) konfiguriert ist für flüssige Verbindung der Nachlaufbohrung (10) zum Einlasskanal (7) durch den Kalkbehälter (17), wobei ein Grund (18) des Kalkbehälters (17) eingeordnet ist am sechsten Niveau H6, das niedriger ist als Einlasskanal (7) an einem vierten Niveau H5.
  6. Der Dampfwäschetrockner (1) nach Anspruch 5, dadurch gekennzeichnet, daß der Kalkbehälter (17) einen aufklappbaren/verschließbaren Entladungsauslaß (19) hat für den Abfluß des Wassers im Kalkbehälter (17).
  7. Der Dampfwäschetrockner (1) nach Anspruch 6, dadurch gekennzeichnet, daß der aufklappbare/verschließbare Entladungsauslaß (19) konfiguriert ist als ein Deckel.
  8. Der Dampfwäschetrockner (1) nach den vorhergehenden Ansprüchen 1 bis 7,
    dadurch gekennzeichnet, daß
    ein Wasserspeicher (20) für Versammlung von übermäßiges Wasser abgeleitet vom Wassertank (9) durch Entladungsöffnung (15), wobei die Entladungsöffnung (15) flüssig verbunden ist zum Wasserspeicher (20)durch eine vierte Rohrleitung (21),
    eine Pumpe für den Abfluß des Wasserspeichers (20), wobei die Öffnung/ Verschließung bedeutet, daß sie konfiguriert ist von besagter Pumpe oder einem Magnetventil (22), das entlang vierter Rohrleitung (21) eingeordnet ist.
  9. Der Dampfwäschetrockner (1) nach dem Anspruch 8, dadurch gekennzeichnet, daß der Regler (14) weiter angepaßt ist, um die Pumpe zu betätigen, sodaß der Wasserspeicher (20) abgeflossen wird.
  10. Der Dampfwäschetrockner (1) nach den vorhergehenden Ansprüchen 1 bis 9, dadurch gekennzeichnet, daß der Nachfüllanschluss (11) konfiguriert ist, um manuelle Einfüllung des Wassertanks (9) mit Wasser zu erlauben.
  11. Eine Kontroll methode für die Bearbeitung eines Dampfwäschetrockners (1) bestehend aus einer Trommel (2) für Aufnahme von Kleidungen, einem Motor (3) für Rotation der Trommel (2),einem Dampfeinspritzanschluss (4), der in die Trommel öffnet (2), einem Dampfgenerator (5), der einen Entladungsanschluss (6) besitzt für Versorgung von unter Druck stehendem Dampf zum Dampfeinspritzblock (4) und einem Einlasskanal (7) für Aufnahme von Wasser, wobei der Entladungsanschluss (6) flüssig verbunden ist mit Dampfeinspritzanschluss (4) durch eine erste Rohrleitung (8), einem Wassertank (9), der eine Nachlaufbohrung (10) besitzt für Wasserzufuhr in den Dampfgenerator (5), einem Nachfüllenanschluss (11) für das Füllen des Wassertanks (9) mit Wasser, und eine aufklappbare/verschließbare Entladungsöffnung (15) für den Abfluß des Wassers vom Wassertank (9), die Nachlaufbohrung (10) ist flüssig verbunden zum besagten Einlasskanal (7) durch eine zweite Rohrleitung (12), der Nachfüllenanschluss (11) ist flüssig verbunden um Wassertank (9) durch eine dritte Rohrleitung (13), die Entladungsöffnung (15) des Wassertanks (9) und der Entladungsanschluss (6) des Dampfgenerators (5) ist eingeordnet an einem demselben ersten Niveau H1, der Dampfeinspritzanschluss (4) ist eingeordnet an einem zweiten Niveau H2 und der Nachfüllenanschluss (11) ist eingeordnet an einem dritten Niveau H3 nicht höher als das zweite Niveau H2, und das dritte Niveau H3 und das zweite Niveau H2 sind höher als das erste Niveau H1, die Kontrollmethode ist dadurch gekennzeichnet, daß bestehend aus folgenden Schritten:
    - Abfluß des übermäßigen Wassers, das über dem ersten Niveau H1 steht durch die Entladungsöffnung (15) und
    - Erzeugung und Versorgung von unter Druck stehendem Dampf zum Dampfeinspritzblock (4) nach dem Beenden des Abflußschritts.
  12. Die Kontrollmethode nach dem Anspruch 11, dadurch gekennzeichnet, daß weiter aus einem Schritt der Rotation der Trommel (2) besteht, so die Kleidungen belüftet werden, wobei der Rotationschritt und der Abflußschritt gleichzeitig begonnen werden.
  13. Die Kontrollmethode nach dem Anspruch 12, dadurch gekennzeichnet, daß der Rotationschritt eine vorbestimmte Dauer begonnen wird vor dem Anfang des dampferzeugenden/ versorgenden Schritts.
  14. Ein Programmbestehend aus computerlesbare Kode für die Ursache eines Dampfwäschetrockners (1), um die Methodenschritten, die in vorhergehenden Ansprüchen 11 bis 13 definiert sind, durchzuführen.
EP13801515.1A 2013-11-29 2013-11-29 Dampfwäschetrockner und verfahren zum betrieb davon Not-in-force EP3074564B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2013/075091 WO2015078515A1 (en) 2013-11-29 2013-11-29 Steam laundry dryer and method for operating the same

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Publication Number Publication Date
EP3074564A1 EP3074564A1 (de) 2016-10-05
EP3074564B1 true EP3074564B1 (de) 2017-09-06

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CN115652591B (zh) * 2022-11-18 2023-09-08 艾米丁(杭州)互联网科技有限公司 一种物联网洗衣控制系统

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Publication number Priority date Publication date Assignee Title
DE10332656A1 (de) * 2003-01-25 2004-07-29 Electrolux Home Products Corporation N.V. Verfahren zur Behandlung von Textilien in einem Haushaltswäschetrockner
EP1862581B2 (de) * 2006-06-01 2020-09-09 Electrolux Home Products Corporation N.V. Verfahren zum Betreiben eines Haushaltsgeräts, insbesondere eines Trockners oder einer Waschmaschine, und Haushaltsgerät
EP2054545B1 (de) * 2006-07-28 2016-08-31 LG Electronics Inc. Wäschetrockner
EP2325381A1 (de) * 2009-11-19 2011-05-25 BSH Bosch und Siemens Hausgeräte GmbH Dampfgenerator eines Wäschepflegeräts und Wäschepflegerät damit
JP4948642B1 (ja) * 2010-12-20 2012-06-06 シャープ株式会社 洗濯乾燥機

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