EP2287389A1 - Dampfeinspritzvorrichtung für ein Wäschebehandlungsgerät und Wäschebehandlungsgerät - Google Patents

Dampfeinspritzvorrichtung für ein Wäschebehandlungsgerät und Wäschebehandlungsgerät Download PDF

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Publication number
EP2287389A1
EP2287389A1 EP09168028A EP09168028A EP2287389A1 EP 2287389 A1 EP2287389 A1 EP 2287389A1 EP 09168028 A EP09168028 A EP 09168028A EP 09168028 A EP09168028 A EP 09168028A EP 2287389 A1 EP2287389 A1 EP 2287389A1
Authority
EP
European Patent Office
Prior art keywords
steam
nozzle
laundry appliance
separator
water
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Withdrawn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
EP09168028A
Other languages
English (en)
French (fr)
Other versions
EP2287389A8 (de
Inventor
Lukasz Sledziona
Michal Trybula
Dariusz Zecin
Jan Wisniewski
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to EP09168028A priority Critical patent/EP2287389A1/de
Priority to PCT/EP2010/061417 priority patent/WO2011020708A1/en
Publication of EP2287389A1 publication Critical patent/EP2287389A1/de
Publication of EP2287389A8 publication Critical patent/EP2287389A8/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Withdrawn legal-status Critical Current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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/40—Steam generating 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
    • D06F58/20—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
    • D06F73/00—Apparatus for smoothing or removing creases from garments or other textile articles by formers, cores, stretchers, or internal frames, with the application of heat or steam 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically

Definitions

  • the invention relates to a steam injection arrangement for a laundry appliance.
  • the invention also relates to a laundry appliance comprising the steam injection arrangement.
  • WO 1996/032607 A1 relates to a steam generator, in particular to supply steam for housework, and concerns a method and a device for automatically carrying out a replenishment of a tank of the steam generator during normal operation thereof.
  • a temperature detector by means of a temperature detector, a temperature is measured inside a cell box which is in communication with the tank.
  • the temperature detector is surrounded by steam, the temperature of which is higher with respect to the temperature of the liquid, and enables liquid supply by means for feeding liquid to the cell box, thus replenishing the tank up to an operational level, when the liquid enters the cell box, it cools the temperature detector which disables the liquid feeding means, cutting off inflow of cold liquid to the cell box.
  • EP 1 026 306 B1 relates to a automatic refill steam generator for use in conjunction with steam cleaning equipment, clothes irons, fan-assisted ironing boards with refill function, coffee and similar brewing machines.
  • the automatic refill steam generator is provided with at least an electric heating element attached to the outside of the steam generator and equipped with a control thermostat, said steam generator being connected on one side to a water reservoir via a pump and at least a pipe, and being further connected on the other side to the steam using apparatus via a pipe.
  • U. S. Patent 4,207,683 relates to a clothes dryer having a touch-up spray for removal of wrinkles from clothing and fabrics and permanent press clothing, in particular without removing possibly present factory set creases.
  • the clothes dryer may include a water heating unit for spraying water of a selected temperature or steam. The steam is applied to remove undesired wrinkles or odours from the laundry being treated and thus provides refreshment to the laundry. Accordingly, this clothes dryer may be designated to be a "refresher dryer". It should be remarked that such nomination is not reserved to an appliance which is designed merely to dry laundry besides the refreshing function; instead, it will also be applied to a washer/dryer with a refreshing function.
  • the object also includes providing a laundry appliance which meets the above requirements.
  • a steam injection arrangement for a laundry appliance comprising a steam separator, wherein a steam outlet of the steam separator is connected to a nozzle via a hose, the nozzle opening into a drum of the laundry appliance.
  • the steam can be selectively directed into the drum.
  • the nozzle can provide flexibility in directing the steam outlet.
  • the nozzle can be adapted such that it determines a direction of the steam flow injected into the drum.
  • the nozzle can direct the flow of steam into the lower half of the drum, which is mostly analogous to directing the steam directly onto the clothes or laundry.
  • the nozzle can be adapted such that it determines a shape of the steam flow injected into the drum.
  • the steam injection may comprise an injection of steam and/or a fine mist of water droplets.
  • a dimension of the nozzle may be adapted accordingly.
  • the nozzle may cause a slight overpressure in the separator chamber, thus providing a pressure difference which can assist in driving water (e.g. condensate) accumulated within the separator chamber out of the separator chamber.
  • the water may be guided back to a water reservoir.
  • a dimension of the nozzle may be adapted to adjust the pressure or pressure difference.
  • hose allows a substantially free positioning of the nozzle, e.g. anywhere on a bearing shield. Steam flow rate and pressure or pressure differences may also be adjusted by properly dimensioning the hose.
  • the steam separator suppresses an injection of water drops into the drum and thus prevents the drying efficiency of the laundry appliance to deteriorate.
  • the nozzle is a removable nozzle. This has the advantage that the nozzle can be taken off for cleaning. It is another advantage that the nozzle can be assembled and disassembled easily.
  • the nozzle comprises at least one clip element.
  • the nozzle can be assembled and disassembled particularly easily without the need to use tools.
  • the nozzle can be assembled and disassembled by a layperson, e.g. a normal user.
  • the hose is a flexible hose. This again facilitates assembly of the nozzle.
  • the hose is made from a silicone. This has the advantage that the hose is highly heat resistant, elastic and robust.
  • the steam separator comprises one fixation point. This has the advantage that the fixation is particularly easy and cost-effective.
  • the one fixation point comprises a screw hole.
  • the fixation can be effected by only one screw connection, e.g. a screw being inserted into the screw hole and screwed to the laundry appliance to fix the steam separator.
  • a laundry appliance comprising the inventive steam injection arrangement, wherein the steam separator is fixed to a bearing shield of the laundry appliance.
  • the fixation at the bearing shield allows a rugged and compact positioning of the steam separator.
  • a water outlet of the steam separator is fluidically connected to a water reservoir.
  • the water is not wasted but may be reused.
  • the nozzle is removably attached to the bearing shield. This allows a close and mechanically not or only little straining connection to the steam separator.
  • the nozzle is clipped to the bearing shield.
  • the invention may preferredly comprise one or more of the following features:
  • Fig.1 shows a laundry appliance 1 that is a clothes dryer or refresher dryer that incorporates a clothes or laundry refreshing and de-wrinkling function applying steam to the clothes.
  • the laundry appliance 1 is shown without housing.
  • the laundry appliance 1 is embodied as a tumble dryer comprising a rotatable drum 2 which holds the clothes to be dried and which may be operated by being rotated in reversing rotational directions.
  • the drum 2 can be loaded and unloaded through an opening 3.
  • the opening 3 is typically closed by a door (further described in Fig.2 and Fig.3 ).
  • the operation of a tumble dryer as such is well known.
  • the laundry appliance 1 comprises a steam generator 4 which is located at a bottom of the laundry appliance 1 and mounted on top of a cover 5 of a heat exchanger 6 and of which a front side F (see also Fig.2 ) is visible.
  • the steam generator 4 is used to generate steam from water. Water is supplied to the steam generator 4 via a condensate container shell 7 through a flexible filling hose 8. The water supplied to the steam generator 4 is thus the condensate that is extracted from the damp clothes during the drying process.
  • the condensate container shell 7 may additionally be filled by fresh water, e.g. at the beginning of a drying cycle, if there is not yet enough condensate to supply the steam generator 4.
  • the output generated by the steam generator 4 usually contains a mixture of steam and hot water and is led to a steam separator 9.
  • the steam separator separates the steam from the hot water.
  • the steam is fed into the drum 2 via a hose 10 that leads to a nozzle 11.
  • the nozzle 11 opens into the drum 2 and may inject the steam directly onto the clothes or laundry. To this end, the nozzle 11 may have a shape, e.g. angular shape that allows orientation of the steam flow.
  • the hot water is returned to a T-connector 12 located in a dryer pump reservoir via a flexible hot water return hose.
  • the steam separator 9 ensures that only steam with a low or very low liquid content is fed into the drum 2.
  • the steam separator 9 and the nozzle 11 are attached to a bearing shield 22 of the laundry appliance 1.
  • the steam generator 4 further comprises or is connected to a flexible de-aeration hose 13 that connects to a water tank (see fig.3 for further detail) of the steam generator 4.
  • the steam generator 4 further comprises a siphon fixation 14 for holding or fixing a siphon 15.
  • Fig. 2 sketches a cross-sectional side view of the steam separator 9.
  • Fig.3 sketches a cross-sectional front view of the steam separator.
  • Fig.4 sketches a transparent top view of the steam separator.
  • the steam separator 9 comprises a separator housing 16.
  • the separator housing 16 may, for example, be box-shaped or cylinder-shaped.
  • a water/steam inlet 17, a water outlet 18, and a steam outlet 19 lead or open into the separator housing 16.
  • the water/steam inlet 17 is provided to feed a mixture of water and steam coming from the steam generator 4 of Fig.1 , as indicated by arrow W+S.
  • the mixture of water and steam entering the separator housing 16 is separated in the housing, because the water W flows to the water outlet 18, leaving the separator housing 16 through the water outlet 18, while the steam rises up to the steam outlet 19, leaving the separator housing 16 through the steam outlet 19.
  • the water/steam inlet 17 is connected to the water outlet 18 by an open drain channel 20.
  • the open drain channel 20 is formed on an upper surface of a plate-like insert 22.
  • the open drain channel 20 may, for example, have a cross-sectional shape resembling a half-pipe.
  • the drain channel 20 is curved, in particular basically U-shaped, to achieve a high flow velocity.
  • a height h between the water / steam inlet 17 and the water outlet 18 can be designed according to needs.
  • the water outlet 18, which in general is located lower than the water/steam inlet 17 is preferably located at a bottom of the steam separator housing 16 at the lowest point of the separator housing 16. Therefore, the water outlet 18 may also act as a drain for condensate formed on the walls of the separator housing 16 by the steam S wherein the condensate trickles or drips down to the water outlet 18.
  • the open drain channel 20 allows the water W to flow through the steam separator 9 without major disturbances or turbulences. This, in turn, suppresses an accumulation of water W within the steam separator 9 that could lead to part of this accumulated water leaving via the steam outlet 19. This water going through the steam outlet 19 would then drip into the drum 2 and impair a drying result.
  • the steam outlet 19 is positioned directly above the drain channel 20. Thus, the steam S being injected into the separator housing 16 and/or being emitted from the hot water W can rise up uninhibited to the steam outlet 19.
  • the inlet 17 and the water outlet 18 have at least roughly the same cross sectional area.
  • the steam outlet 19 has a larger cross sectional area than the inlet 17.
  • the steam outlet 19 is connected to the nozzle 11 via the flexible hose 10, as shown in Fig.1 , the nozzle 11 opening into the drum 2.
  • Fig.5 and Fig.6 show the steam injection arrangement 9, 10, 11 for the laundry appliance 1 from different angles.
  • the steam injection arrangement 9, 10, 11 comprises the steam separator 9, wherein its steam outlet 19 is connected to the nozzle 11 via the flexible silicone hose 10.
  • the nozzle 11 opens into the drum 2 of the laundry appliance 1, i.e. comprises a steam injection opening 23 or window through which the steam S is injected into the drum 2, as indicated by the respective arrow.
  • the steam separator 9 is fed with water and steam W + S through the water/steam inlet 17, and water W exits the steam separator 9 through the water outlet 18.
  • the water outlet 18 is located at the lowest point of the steam separator and attached to a cone-shaped part 25 of the steam separator 9 to drain as much water as possible from the steam separator 9.
  • the steam separator 9, at the outside of its housing 16, comprises only one fixation element or fixation point 26 to screw the steam separator 9 to the bearing shield 22.
  • the bearing shield 22 comprises an opening (not shown) to insert the nozzle 11 and/or the hose 10.
  • the nozzle 11 can be a two-part nozzle 11, with a nozzle head 11a comprising the clips 24 and a nozzle support part 11 b.
  • the nozzle support part 11 b may be attached to an outside of the bearing shield 22, as described in Fig.7 to Fig.9, to provide a fixed and immovable connection for the hose 10.
  • the nozzle support part 11 b is thus adapted to attach the hose 10 thereon.
  • the nozzle head 11a may then be plugged together with the nozzle support part 11 b from the inside of the bearing shield 22 and be clipped to the bearing shield.
  • cleaning of the nozzle 11 in particular includes cleaning of the nozzle head 11a.
  • the whole steam injection arrangement 9, 10, 11 can be fixed to the laundry appliance 1 by one screwing action to screw the steam separator 9 to the bearing shield 22 and one clipping action to clip the nozzle 11 to the bearing shield 22.
  • the nozzle 11 is inclined with respect to the bearing shield 22, wherein the orientation of the bearing shield 22 is indicated by the dashed line.
  • the inclination allows the steam S exiting from the nozzle 11 to be directed downwards to a lower region of the drum 2 and thus directly onto the clothes to be refreshed and/or de-wrinkled.
  • This arrangement implies that the nozzle 11 is positioned at an upper half of the bearing shield 22, in particular at a region of the bearing shield 22 surrounding an upper half of the opening 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
EP09168028A 2009-08-18 2009-08-18 Dampfeinspritzvorrichtung für ein Wäschebehandlungsgerät und Wäschebehandlungsgerät Withdrawn EP2287389A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP09168028A EP2287389A1 (de) 2009-08-18 2009-08-18 Dampfeinspritzvorrichtung für ein Wäschebehandlungsgerät und Wäschebehandlungsgerät
PCT/EP2010/061417 WO2011020708A1 (en) 2009-08-18 2010-08-05 Steam injection arrangement for a laundry appliance, and laundry appliance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09168028A EP2287389A1 (de) 2009-08-18 2009-08-18 Dampfeinspritzvorrichtung für ein Wäschebehandlungsgerät und Wäschebehandlungsgerät

Publications (2)

Publication Number Publication Date
EP2287389A1 true EP2287389A1 (de) 2011-02-23
EP2287389A8 EP2287389A8 (de) 2011-04-20

Family

ID=41611224

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09168028A Withdrawn EP2287389A1 (de) 2009-08-18 2009-08-18 Dampfeinspritzvorrichtung für ein Wäschebehandlungsgerät und Wäschebehandlungsgerät

Country Status (2)

Country Link
EP (1) EP2287389A1 (de)
WO (1) WO2011020708A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014075926A1 (en) * 2012-11-13 2014-05-22 Arcelik Anonim Sirketi A laundry washing and/or drying machine
EP2778277A3 (de) * 2013-03-13 2014-11-05 Miele & Cie. KG Gehäuse für Haushaltsgeräte, wie beispielsweise einen Wäschetrockner, eine Waschmaschine oder dergleichen
EP2821540A1 (de) * 2013-07-03 2015-01-07 Electrolux Appliances Aktiebolag Haushaltsgerät zur Wäschetrocknung mit einer Dampfdüseneinheit
WO2015078512A1 (en) * 2013-11-29 2015-06-04 Arcelik Anonim Sirketi Steam injection apparatus for use in a steam laundry dryer and steam laundry dryer having the same
EP3315648A1 (de) * 2016-10-31 2018-05-02 BSH Hausgeräte GmbH Waschmaschine/trockner

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB721099A (en) * 1952-05-14 1954-12-29 Sulzer Ag Steam generating plants which employ electric motors
US4207683A (en) 1979-02-01 1980-06-17 Horton Roberta J Clothes dryer
WO1996032607A1 (en) 1995-04-14 1996-10-17 Futura Steam S.R.L. Automatic replenishment method for the tank of a steam generator and device for carrying out the method
EP1026306A1 (de) * 1999-02-01 2000-08-09 Euro Star S.r.l. Dampferzeuger für Reinigungsmaschinen, Bügeleisen, Kaffemaschinen und ähnliche Maschinen
DE102007003869A1 (de) * 2006-01-26 2007-08-09 Lg Electronics Inc. Dampfgenerator und Waschmaschine mit einem solchen
DE102008021853A1 (de) * 2007-05-02 2008-11-06 Lg Electronics Inc. Bekleidungsbehandlungsmaschine
DE102008057664A1 (de) * 2007-11-21 2009-06-04 Lg Electronics Inc. Trockner

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB721099A (en) * 1952-05-14 1954-12-29 Sulzer Ag Steam generating plants which employ electric motors
US4207683A (en) 1979-02-01 1980-06-17 Horton Roberta J Clothes dryer
WO1996032607A1 (en) 1995-04-14 1996-10-17 Futura Steam S.R.L. Automatic replenishment method for the tank of a steam generator and device for carrying out the method
EP1026306A1 (de) * 1999-02-01 2000-08-09 Euro Star S.r.l. Dampferzeuger für Reinigungsmaschinen, Bügeleisen, Kaffemaschinen und ähnliche Maschinen
EP1026306B1 (de) 1999-02-01 2003-11-05 Euro Star S.r.l. Dampferzeuger für Reinigungsmaschinen, Bügeleisen, Kaffemaschinen und ähnliche Maschinen
DE102007003869A1 (de) * 2006-01-26 2007-08-09 Lg Electronics Inc. Dampfgenerator und Waschmaschine mit einem solchen
DE102008021853A1 (de) * 2007-05-02 2008-11-06 Lg Electronics Inc. Bekleidungsbehandlungsmaschine
DE102008057664A1 (de) * 2007-11-21 2009-06-04 Lg Electronics Inc. Trockner

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014075926A1 (en) * 2012-11-13 2014-05-22 Arcelik Anonim Sirketi A laundry washing and/or drying machine
EP2778277A3 (de) * 2013-03-13 2014-11-05 Miele & Cie. KG Gehäuse für Haushaltsgeräte, wie beispielsweise einen Wäschetrockner, eine Waschmaschine oder dergleichen
EP2821540A1 (de) * 2013-07-03 2015-01-07 Electrolux Appliances Aktiebolag Haushaltsgerät zur Wäschetrocknung mit einer Dampfdüseneinheit
WO2015078512A1 (en) * 2013-11-29 2015-06-04 Arcelik Anonim Sirketi Steam injection apparatus for use in a steam laundry dryer and steam laundry dryer having the same
EP3315648A1 (de) * 2016-10-31 2018-05-02 BSH Hausgeräte GmbH Waschmaschine/trockner

Also Published As

Publication number Publication date
WO2011020708A1 (en) 2011-02-24
EP2287389A8 (de) 2011-04-20

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