EP2112263B1 - Sèche-linge doté d'un boîtier de tambour comprenant une ouverture d'entrée d'eau - Google Patents

Sèche-linge doté d'un boîtier de tambour comprenant une ouverture d'entrée d'eau Download PDF

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Publication number
EP2112263B1
EP2112263B1 EP09100229A EP09100229A EP2112263B1 EP 2112263 B1 EP2112263 B1 EP 2112263B1 EP 09100229 A EP09100229 A EP 09100229A EP 09100229 A EP09100229 A EP 09100229A EP 2112263 B1 EP2112263 B1 EP 2112263B1
Authority
EP
European Patent Office
Prior art keywords
drum
laundry
drum housing
water inlet
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.)
Active
Application number
EP09100229A
Other languages
German (de)
English (en)
Other versions
EP2112263A1 (fr
Inventor
Edwin Bolduan
Dieter Schröder
Andreas Stolze
Joachim Wüstemann
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
Publication of EP2112263A1 publication Critical patent/EP2112263A1/fr
Application granted granted Critical
Publication of EP2112263B1 publication Critical patent/EP2112263B1/fr
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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
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D06F58/04—Details 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/24—Condensing arrangements

Definitions

  • the invention relates to a washer-dryer with a laundry drum rotatably mounted in a drum housing and a water inlet opening provided in a wall of the drum housing for the entry of cooling and / or condensate water into the drum housing.
  • Prior art washer-dryers show the documents WO 2006/029953 WO 2007/138019 A1 such as EP 0 636 732 B1 .
  • DE 44 27 361 A1 and DE 195 22 307 C2 The three last-mentioned documents primarily each describe a washer-dryer which has a water-cooled condenser for drying wet laundry by means of a circulating process air stream.
  • a washer-dryer has a drum housing together with a rotatable drum for receiving the laundry, facilities for supplying and discharging water and laundry treatment means, etc.
  • a process air circuit is formed in the washer-dryer by a fan, heating channel, drum with laundry load and condenser to dry the washed laundry by a process air flow in the process air circuit.
  • the condenser can be water or air cooled.
  • the air inlet into the drum is usually in the door area above the sight glass, and the air outlet from the drum is located on a wall, in particular on the drum shell or in the drum rear wall.
  • the air outlet opening is at the same time condensate and / or cooling water inlet opening in the drum. From the drum housing periodically water is pumped out during a drying process. Because of the construction space, an air-water countercurrent with strong turbulences is created in this air outlet opening.
  • the distances between the laundry drum and the drum housing are minimized even in a washer-dryer;
  • the drum and the laundry to be dried therein can be moistened unintentionally by water swirls of the condensate water in the area of the air outlet opening.
  • Such undesired moistening worsens the consumption values of the drying process, since the distributed water for re-discharging through the process air flow in particular again must be evaporated.
  • the vortex formation can be reduced by a uniform enlargement of the outlet opening.
  • the washer-dryer is provided with a laundry drum (inner drum) mounted rotatably in a drum housing (outer drum, tub) and a water inlet opening provided in a wall of the drum housing for entry of cooling water and / or condensate water;
  • the wall has a recess which extends from the water inlet opening approximately perpendicular to the wall and outwardly of the drum housing.
  • According to the invention does not penetrate water from the water inlet opening in a straight path in the drum housing, but it must first flow through the return. As a result, the formation of drops and splashes in the area of the inner drum and any laundry there in the drum housing is avoided.
  • the wall with the recess is preferably a rear wall, and the recess extends in the direction of a jacket of the drum housing.
  • the rear wall preferably has a recess which extends from the water inlet opening in the direction of the jacket of the drum housing or in the direction of the edge of the rear wall.
  • the recess can also be regarded as an extension of the water inlet opening in the direction of the jacket of the rear wall.
  • a washer-dryer with a distance-optimized air outlet region in the drum rear wall reduces the rewetting of the laundry item to be dried by swirling water and is thus improved in terms of the expenditure on energy and time for the drying process.
  • the water inlet opening in the drum housing simultaneously corresponds to the air outlet opening in a process air duct.
  • the water inlet opening and the air outlet opening can be completely or partially separated from one another.
  • the rear wall extends outward along a radial direction, for example, along an imaginary line that passes approximately through the center of the rear wall and the center of the air inlet opening.
  • the return is designed mirror-symmetrically with respect to this line or direction.
  • the recess extends at least to a radial position which is opposite a jacket of the laundry drum, in particular, if the recess further extends to a shell of the drum housing.
  • the recess at least partially has a tapered (funnel-shaped) shape starting from the water inlet opening, in particular a funnel shape extending over the majority of the length or the entire length of the recess. This will reduce the width or cross-sectional area of the funnel.
  • the recess has a tapering in plan view from the front at least in sections form.
  • This shape may comprise, at least in sections or regions, a curved or straight contour, in particular a tulip-shaped contour.
  • the recess has a cross-sectionally at least partially tapered shape.
  • This shape may comprise, at least in sections or regions, a curved or straight contour, in particular a tulip-shaped contour.
  • a distance between a fold on an end face of the jacket of the laundry drum and the drum housing is more than 8 mm, in particular more than 10 mm.
  • edges in the area of the water inlet opening are rounded, in particular rounded in the shape of a nozzle.
  • FIG. 1 shows components of a washer-dryer with air-condensation cooling, which is in the state after a wash and before a drying cycle.
  • the washer-dryer has a drum housing 1 (outer drum, tub), in which a laundry drum 2 (inner drum) for receiving laundry 3 is rotatably mounted.
  • a fresh water supply line 4 which opens into a dispenser 5
  • water is supplied with or without detergent additive to the drum housing 1 and forms there a free fleet 6.
  • the auficarmbare a heater 7 free fleet 6 can by means of a drain pump 8 through a drain channel 9 to the outside be drained.
  • a substantially self-contained process air duct 10 for the process air is connected to the tub 1.
  • the upper part 11 of the process air duct 10 is connected to the pressure side of a process air blower 12 and opens at its other end in the drum housing 1 above the filling opening (not shown here) of the laundry drum 2.
  • the lower part 13 of the process air duct 10 is to the suction side of the process air blower 12 connected and opens into an air outlet opening or water inlet opening 14 (relative to the drum housing 1) in a lower portion of the drum housing 1.
  • this water inlet opening 14 is still above the level that is ever reached by the fleet 6 during washing or rinsing.
  • a heating device not shown here, is typically also arranged for heating the process air.
  • the process air is blown by means of the blower 12 through the heater, heated there and then mixed in the laundry drum 2 with the wet laundry 3. There, the heat energy is used to evaporate the water in the laundry 3.
  • the thus loaded with steam process air is then cooled in a condenser 15 and passed back to the fan 12.
  • the condensation device 15 designed as a heat exchanger, which essentially has a cooler 16, is mounted in a lower part 13 of the process air channel 10.
  • the cooler 16 is cooled here by fresh air, which is sucked from the environment of the washer dryer by a cooling air blower 17 and fed to the cooler 16 via the cooling air inflow channel 18.
  • the cooling air is conducted via a cooling air outflow channel 19 to an exhaust air outlet 20.
  • the downpipe 21 is designed here as part of the process air duct 10. During drying, therefore, a mass transport of water results from the laundry 3 located in the drum 2 to the outside. This reduces the weight of the laundry 3 and thus also the force on the vibrating system.
  • the water inlet opening 14 is at the same time air outlet for the process air from the drum housing 1 and condensate or cooling water inlet into the drum 1 from the above arranged condensation device 15, arises at this opening 14 space reasons an air-water countercurrent with strong turbulence. For the best possible washing effect with low water consumption, the distances between the washing drum 2 and drum housing 1 are minimized. In a following laundry drying However, by water vortex of the condensate water to be dried laundry 3 and the inner drum 2 can be moistened again unintentionally. An unwanted humidification by condensate water deteriorates the consumption values of the drying process.
  • FIG. 2 shows a side view of a section of a washer-dryer 22, in which now the water inlet opening 14 is arranged in a rear wall 23 of the drum housing 1;
  • FIG. 3 Since the laundry drum 2 is not closed on the back, but to achieve a good flow characteristics of the process air drum openings 24 in the rear wall 25 of the laundry drum 2 are present, condensate can through the drum openings 24 in the Wash drum 2 penetrate. This can be done by direct spraying of condensate water in the drum openings 24, but above all by an accumulation of sprayed condensate in an inadvertently serving as a collecting groove fold 26 at the front bottom of the shell 27 of the laundry drum 2.
  • the therein Water entrained can run down on the rear wall 25 of the laundry drum 2 and thus pass through the drum openings 24 in the laundry drum 2.
  • Particularly critical is the distance d between the fold 26 and the drum housing 1, which is less than 8 mm so far.
  • the rear wall 23 of the drum housing 1 a recess 28 which extends from the water inlet opening 14, starting in the direction of the edge of the back or a jacket 29 of the drum housing 1, via a the jacket of the laundry drum 2 opposite radial position P out to the jacket 29 of the drum housing 1.
  • the contour of the previously used drum housing 1 and the process air duct 10 are shown in dashed lines.
  • the horizontal distance d between the fold 26 and the drum housing 1 is thereby increased to more 10 mm.
  • the recess 28 has in particular a side view ( FIG. 2 ) starting from the drum opening 14 funnel-shaped downwardly tapering shape, wherein the recess 28 has a continuously tapering in cross-section shown in the form shown.
  • the recess 28 also has a front view ( FIG. 3 ) to the edge or jacket 29 of tapered, tulip-shaped form. This shape is curved at two terminal sections and straight between them. In this case, the return is executed with respect to a radial direction shown here Strichat radial direction.
  • edges or transitions in the water outlet area are flow-optimized, for. B. rounded Tüllenförmig.
  • FIG. 4 shows a washer-dryer 30 in the region of the water inlet opening 14, which is now just above the fold 26.
  • the recess 28 is formed to a height just below the fold 26, but not quite up to the jacket 29th
  • the present invention is not limited to the embodiment shown.
  • a cooler / condenser with water cooling can be used instead of the air cooling shown.
  • other forms of return are possible, for. B. funnel-shaped with straight outer contour or straight down, and the recess may be attached to a wall other than the rear wall. Also, the return can be made shorter.
  • the recess need not extend radially from the water inlet opening to the outside, but for example also angled to a radial direction. Also, the return can, for example, additionally extend backward.

Landscapes

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

Claims (9)

  1. Combiné lave-linge/sèche-linge (22 ; 30) comprenant un tambour à linge (2) monté de manière rotative dans un boîtier de tambour (1) et une ouverture d'entrée d'eau (14) ménagée dans une paroi (23) du boîtier de tambour (1) pour l'entrée d'eau de refroidissement et/ou d'eau de condensation, caractérisé en ce que la paroi (23) est pourvue d'un épaulement (28) qui s'étend à peu près perpendiculairement à la paroi (23) vers l'extérieur du boîtier de tambour (1), à partir de l'ouverture d'entrée d'eau (14).
  2. Combiné lave-linge/sèche-linge (22 ; 30) selon la revendication 1, caractérisé en ce que la paroi (23) est une paroi postérieure (23) et en ce que l'épaulement (28) s'étend en direction d'une enveloppe (29) du boîtier de tambour (1).
  3. Combiné lave-linge/sèche-linge (22 ; 30) selon la revendication 2, caractérisé en ce que la paroi postérieure (23) s'étend vers l'extérieur le long d'une direction radiale.
  4. Combiné lave-linge/sèche-linge (22 ; 30) selon l'une des revendications 2 et 3, caractérisé en ce que l'épaulement (28) s'étend au moins jusqu'à une position (P) opposée à une enveloppe (27) du tambour à linge (2).
  5. Combiné lave-linge/sèche-linge (22) selon la revendication 4, caractérisé en ce que l'épaulement (28) s'étend jusqu'à une enveloppe (29) du boîtier de tambour (1).
  6. Combiné lave-linge/sèche-linge (22 ; 30) selon l'une des revendications précédentes, caractérisé en ce que l'épaulement (28) possède une forme qui, en vue avant, se rétrécit, au moins par endroits.
  7. Combiné lave-linge/sèche-linge (22 ; 30) selon l'une des revendications précédentes, caractérisé en ce que l'épaulement (28) possède une forme qui, en section transversale, se rétrécit, au moins par endroits.
  8. Combiné lave-linge/sèche-linge (22 ; 30) selon l'une des revendications précédentes, caractérisé en ce qu'une distance (d) entre un pli (26) au niveau d'une extrémité de la partie de fond de l'enveloppe (27) du tambour à linge (2) et le boîtier de tambour (1) est supérieure à 8 mm, notamment supérieure à 10 mm.
  9. Combiné lave-linge/sèche-linge (22 ; 30) selon l'une des revendications précédentes, caractérisé en ce que des bords du boîtier de tambour (1) sont arrondis en forme de douille au niveau de l'ouverture d'entrée d'eau (14).
EP09100229A 2008-04-24 2009-04-07 Sèche-linge doté d'un boîtier de tambour comprenant une ouverture d'entrée d'eau Active EP2112263B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008020571A DE102008020571A1 (de) 2008-04-24 2008-04-24 Waschtrockner mit einem Trommelgehäuse, das eine Wassereintrittsöffnung aufweist

Publications (2)

Publication Number Publication Date
EP2112263A1 EP2112263A1 (fr) 2009-10-28
EP2112263B1 true EP2112263B1 (fr) 2011-09-21

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ID=40847370

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09100229A Active EP2112263B1 (fr) 2008-04-24 2009-04-07 Sèche-linge doté d'un boîtier de tambour comprenant une ouverture d'entrée d'eau

Country Status (4)

Country Link
EP (1) EP2112263B1 (fr)
CN (1) CN101597854B (fr)
AT (1) ATE525513T1 (fr)
DE (1) DE102008020571A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES242354Y (es) * 1979-03-16 1979-11-16 Dispositivo de secado para maquinas lavadoras de ropa.
DE4325209A1 (de) 1993-07-27 1995-02-02 Bosch Siemens Hausgeraete Zum Trocknen eingerichtete Waschmaschine
DE4427361A1 (de) 1994-08-02 1996-02-08 Bosch Siemens Hausgeraete Zum Trocknen eingerichtete Waschmaschine
DE19522307C2 (de) 1995-06-20 2000-06-08 Bsh Bosch Siemens Hausgeraete Zum Trocknen eingerichtete Wasch- oder Geschirrspülmaschine
JP3517618B2 (ja) * 1999-10-21 2004-04-12 株式会社東芝 ドラム式洗濯乾燥機
JP3600106B2 (ja) * 2000-03-01 2004-12-08 株式会社日立製作所 衣類乾燥機
DE102004044176A1 (de) * 2004-09-13 2006-03-30 BSH Bosch und Siemens Hausgeräte GmbH Trocknungsverfahren für ein Haushaltsgerät und Haushaltsgerät zur Durchführung des Trocknungsverfahren
CN101082161B (zh) 2006-05-31 2013-10-09 博西华电器（江苏）有限公司 设有烘干程序的滚筒洗衣机及其控制方法

Also Published As

Publication number Publication date
CN101597854B (zh) 2012-04-25
CN101597854A (zh) 2009-12-09
EP2112263A1 (fr) 2009-10-28
ATE525513T1 (de) 2011-10-15
DE102008020571A1 (de) 2009-10-29

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