EP2426248B1 - Tambour de lavage pour sèche-linge - Google Patents

Tambour de lavage pour sèche-linge Download PDF

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Publication number
EP2426248B1
EP2426248B1 EP11008792.1A EP11008792A EP2426248B1 EP 2426248 B1 EP2426248 B1 EP 2426248B1 EP 11008792 A EP11008792 A EP 11008792A EP 2426248 B1 EP2426248 B1 EP 2426248B1
Authority
EP
European Patent Office
Prior art keywords
drum
wall
laundry
collars
air openings
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
EP11008792.1A
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German (de)
English (en)
Other versions
EP2426248A1 (fr
Inventor
Stefan Arnold
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.)
V-Zug AG
Original Assignee
V-Zug AG
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 V-Zug AG filed Critical V-Zug AG
Priority to EP11008792.1A priority Critical patent/EP2426248B1/fr
Publication of EP2426248A1 publication Critical patent/EP2426248A1/fr
Application granted granted Critical
Publication of EP2426248B1 publication Critical patent/EP2426248B1/fr
Active 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
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D06F58/04—Details 

Definitions

  • the invention relates to a laundry drum for a tumble dryer or a tumble dryer with such a laundry drum according to the preamble of the independent claims.
  • a clothes dryer has a laundry drum with a filling opening, through which wet laundry can be introduced into the laundry drum.
  • a process air stream enters the laundry drum through air openings in a wall of the laundry drum, absorbs moisture from the laundry and leaves the laundry drum through air channels.
  • the filling opening is closed by a door and the washing drum rotates in one direction or alternately in both directions (reversing).
  • a laundry drum for a tumble dryer has a drum interior for receiving laundry to be dried. Furthermore, the laundry drum comprises a wall which delimits the drum interior from a drum outer space (on the outside of the drum, in the housing of the tumble dryer).
  • This wall of the laundry drum in this case has a plurality of air openings (for example, with diameters of 10-12 mm), through which a process air stream for drying the laundry from the outside of the drum can be guided into the interior of the drum.
  • the wall of the laundry drum further has to improve the flow characteristics of the process air flow at least between two of the air openings - in a preferred development between all air openings - a the Trommelaussenraum facing flat or convex surface. In other words, no or at least no such depressions are to be found in the region outside the drum, which lead to undesirable turbulences of the process air flow, in particular during its passage through the air openings.
  • a cross-section (ie diameter) of at least one of the air openings - in a preferred development of all air openings - decreases at least in a section from the outside of the drum to the interior of the drum.
  • the term "section” is to be understood in this context as part of the air opening from the drum outer space to the drum interior.
  • This reduction of the cross-section of the air opening (s) at least in one section can be made stepwise or continuously, eg the air openings can be funnel-shaped towards the interior of the drum.
  • the laundry drum comprises a cylinder jacket and a filling opening.
  • the wall and the filling opening are arranged on opposite end faces of the cylinder jacket.
  • the laundry drum is at least partially made of punched sheet metal.
  • a continuous stainless steel sheet blank (still without air openings) punched from the later interior of the drum ago against the later Trommelaussenraum, whereby the air openings are produced in the sheet metal.
  • the wall then has in the Trommelaussenraum directed and encircling the air openings collars.
  • the later drum interior of the wall can be kept free from sharp edges which could damage the laundry during drying or rotation of the laundry drum. Nevertheless, a simpler and more cost-effective production of the wall with the air openings is made possible.
  • At least one of these collars - preferably all collars - in the Trommelaussenraum inlet contours, which in a simpler way (sections) reduction of the cross section of the air opening (s) can be generated to the drum interior out.
  • At least one of the collars - preferably all collars - thereby a flanging, in particular a flange with a radius smaller than 4 mm.
  • the collars are bent away from the center of the air opening "outwards", ie drum outside again in the direction of the wall.
  • intermediate volume between at least two of the collars, preferably between all collars, in the outer space of the drum with a material, e.g. a foreign material, filled out.
  • a material e.g. a foreign material
  • intermediate volume in this context is understood to mean the volume of the air openings between the air openings opposite the air openings of the collars and against the drum interior of the wall between the air openings, which in the drum outer space at least up to an extension of the collars in the Trommelaussenraum (ie until expansion of the collars in the z-direction or even beyond, see below) is filled with the material.
  • the intermediate volume can be poured out after the punching of a sheet metal blank with the production of collars (with or without crimping), for example with a hardening resin or another potting compound.
  • a plane or convex surface of the wall facing the outer wall of the drum can be generated, which leads to an improvement in the flow conditions for the process air flow.
  • the wall of the laundry drum comprises at least two individual parts, at least in one partial area.
  • the two parts can be made of the same material (eg two stamped parts made of stainless steel) or different materials (eg drum inside a stamped part made of stainless steel and drum outside a plastic part).
  • the two individual parts of the wall are mirror-image stamped parts, each with collars surrounding the air openings.
  • the two items of the Wall are then combined with each other so that end faces of the collars of the items are arranged facing each other.
  • the collars of the drum inside side item are oriented towards the drum outer side and the collars of the drum outer side item are oriented towards the drum inside.
  • the faces of the collars face each other.
  • a wall can be produced with a flat surface facing the outer wall of the drum, which leads to an improvement of the flow conditions for the process air flow.
  • the wall comprises, at least in a partial region, a first individual part and a second individual part.
  • both the first item as well as the second item each have at least one circumferential to an air opening collar.
  • At least one collar - preferably all collars - the first item is in each case assigned a collar of the second item of the wall.
  • a collar of the first item and the associated collar of the second item thus form a pair of collars, which rotates about the respective common air opening of the wall after assembly of the items.
  • the collar of the first item inside collar ie pointing to the respective air opening
  • a larger or maximally the same diameter (inner diameter) than the respective associated collar of the second item outside the collar ie pointing away from the air opening, outside diameter.
  • the two individual parts are then assembled to the wall, that at least one pair of collars - preferably all pairs of collars - "is arranged inside each other" or the collars in a direction of the air flow different degrees, ie at least in a section, "overlap".
  • the collar of the first item is at least in a section not directly facing the respective air opening, as seen from it collar inside (ie pointing to the respective air opening indicative) of the associated collar of the second item of the wall is arranged, which faces the actual air opening directly.
  • the air openings can be enclosed in a simpler way by the / the pair of collars (e).
  • a clothes dryer in particular a heat pump dryer, with one of the laundry drums described above benefits from an improved process air flow in the area of the air openings on the laundry drum.
  • an energy saving and / or reduction of the noise level is possible.
  • FIG. 1 shows a perspective view of a laundry drum 10 with a cylinder jacket 14, a filling opening 15 and with a wall 20 in which a plurality of air openings 21 for carrying a process air stream 13 from a Trommelaussenraum 12 (a volume in a housing of the tumble dryer outside the laundry drum 10) in a drum interior 11 (a volume within the laundry drum 10, in which the laundry 2 to be dried is received) is arranged.
  • the wall 20 and the filling opening 15 are arranged on opposite end faces of the cylinder jacket 14 of the laundry drum 10.
  • a running through the laundry drum process air stream 13 can be ensured by the process air stream 13 through the wall 20 at one end face (here: back) of the laundry drum 10 enters the laundry drum 10 and this leaves through the opposite filling opening 15 (here: at the front of the laundry drum 10, along minus z) again.
  • FIG. 2 shows a sectional view in the xz-plane through a portion of a wall 20 of an unclaimed laundry drum 10.
  • the process air stream 13 flows along the minus z-axis through the air openings 21 from the drum outlet 12 into the drum interior 11 (indicated by the black arrows).
  • encircling collars 23 of the wall 20 are visible, which limit the air openings 21 laterally (ie along x and y).
  • flanges 25 are formed on the collars 23. These flanges 25 have bending radii of less than 4 mm.
  • the lateral air opening diameter d is not constant in the axial direction (along z), but decreases in a portion from the drum outer space 12 to the drum inner space 11.
  • the collars 23 inlet contours 24 are not constant in the axial direction (along z), but decreases in a portion from the drum outer space 12 to the drum inner space 11.
  • FIG. 3 shows a sectional view in the xz-plane through a part of the wall 20 from FIG. 1
  • a first inventive embodiment of the laundry drum 10 As in the FIG. 2 the process air stream 13 flows along the minus-z-axis through the air openings 21 from the drum outer space 12 into the drum interior 11 (indicated by the black arrows). In this case, collars 23 of the air openings 21 are visible, which limit the air openings 21 laterally (along x or y). These collars 23 laterally enclose an intermediate volume 26 between the air openings 21 in the drum outer space 12. In the z-direction, the intermediate volume 26 on the side toward the drum interior 11 is the wall material limited between the air openings.
  • the intermediate volume 26 is filled to the extent of the collars 23 in the z-direction (or even beyond) with a foreign material 27, for example with a potting compound or a resin which is cured.
  • a foreign material 27 for example with a potting compound or a resin which is cured.
  • FIG. 4 shows a sectional view in the xz-plane through a part of the wall 20 from FIG. 1
  • a second embodiment of the laundry drum 10 according to the invention.
  • the process air stream 13 flows along the minus-z-axis through the air openings 21 from the drum outer space 12 into the drum interior 11 (indicated by the black arrows).
  • the wall 20 in the second embodiment comprises two individual parts 20a and 20b, which are arranged one behind the other in the z-direction.
  • the two individual parts 20a and 20b of the wall 20 are mirror-image stamped parts with encircling around the air openings 21 collars 23, which, however, have no flanging in this embodiment.
  • the end faces 23a, 23b of the collars 23 of the two individual parts 20a, 20b are oriented against each other.
  • the mirror-image items 20a and 20b are oriented against each other and thus form the wall 20, which has a facing against the Trommelaussenraum 12 flat surface A. In this way, the flow conditions for the process air stream 13 can be improved.
  • FIG. 5 shows a clothes dryer 1 with a laundry drum 10 according to the invention, which has a wall 20 with a plurality of air openings 21, through which a process air stream 13 for drying the laundry 2 from the Trommelaussenraum 12 forth in the drum interior 11 can be guided.
  • the wall 20 has a the Drum outer space 12 facing flat surface A between at least two air openings 21 and the cross-section d at least one of the air openings 21 is reduced from the drum outer space 12 to the drum interior 11.
  • FIG. 6 shows a sectional view through a part of the wall 20 from FIG. 1
  • the third embodiment combines the curls 25 on the collars 23 FIG. 2 which lead to inlet contours 24 of the collars 23, with the filled intermediate volume 26 between the air openings 21 in the drum outer space 12 from the first embodiment according to FIG. 3 ,
  • the wall 20 of the laundry drum 10 according to the third embodiment both a the Trommelaussenraum 12 facing flat or convex surface A and in a portion of the Trommelaussenraum 12 to the drum interior 11 toward reducing cross-section d of the air openings 21.
  • the flow conditions for the process air flow are improved.
  • FIG. 7 shows a sectional view through a part of the wall 20 from FIG. 1
  • the wall 20 comprises two individual parts 20a (inside the drum, ie oriented towards the drum interior 11) and 20b (outside the drum, ie oriented towards the drum outer space 12). Both individual parts 20a, 20b (punched parts) have encircling collars 23c, 23d around the air openings 21.
  • each collar 23c of the first individual part 20a is assigned a collar 23d of the second individual part 20b, ie the two collars 23c and 23d assigned to one another circulate around a common air opening 21.
  • collars 23c, 23d which are assigned to one another form a pair of collars.
  • the collar 23c of the first individual part 20a has a larger or maximally equal inner diameter d i than the outer diameter d a (ie the diameter on the side away from the air opening) of the collar 23d.
  • the two individual parts 20a, 20b are then assembled to the wall 20 such that the pairs of collars 23c, 23d are arranged "in one another" or in other words the collars 23c, 23d "overlap" in the z-direction (direction of the airflow 13).

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

Claims (12)

  1. Tambour à linge (10) pour un sèche-linge (1),
    le tambour à linge (10) ayant un espace intérieur (11) du tambour pour recevoir du linge (2) à sécher et comprenant une paroi (20),
    l'espace intérieur (11) du tambour étant séparé d'un espace extérieur (12) du tambour par la paroi (20),
    la paroi (20) ayant une pluralité d'ouvertures d'air (21) à travers lesquelles un flux d'air de processus (13) peut être guidé à partir de l'espace extérieur (12) du tambour dans l'espace intérieur (11) du tambour,
    la paroi (20) étant au moins partiellement réalisée en tôle de métal perforée,
    la paroi (20) ayant des colliers (23) orientés dans l'espace extérieur (12) du tambour et entourant les ouvertures d'air (21),
    caractérisé en ce qu'un volume intermédiaire (26) entre au moins deux des colliers (23) est rempli avec un matériau (27) dans l'espace extérieur (12) du tambour au moins jusqu'à une extension des colliers (23) dans l'espace extérieur (12) du tambour
    de sorte que la paroi (20) a une surface plate ou convexe (A) qui est en face de l'espace extérieur (12) du tambour au moins entre deux des ouvertures d'air (21).
  2. Tambour à linge (10) selon la revendication 1, au moins un des colliers (23), particulièrement tous les colliers (23), ayant un contour d'entrée (24).
  3. Tambour à linge (10) selon la revendication 2, au moins un des colliers (23), particulièrement tous les colliers (23), ayant un bordage (25), particulièrement avec un radius inférieur à 4 mm.
  4. Tambour à linge (10) selon l'une des revendications précédentes, le matériau (27) comprenant une masse de scellement.
  5. Tambour à linge (10) selon l'une des revendications précédentes, un volume intermédiaire (26) entre tous les colliers (23) étant rempli avec le matériau (27) dans l'espace extérieur (12) du tambour au moins jusqu'à une extension des colliers (23) dans l'espace extérieur (12) du tambour.
  6. Tambour à linge (10) pour un sèche-linge (1),
    le tambour à linge (10) ayant un espace intérieur (11) du tambour pour recevoir du linge (2) à sécher et comprenant une paroi (20),
    l'espace intérieur (11) du tambour étant séparé d'un espace extérieur (12) du tambour par la paroi (20),
    la paroi (20) ayant une pluralité d'ouvertures d'air (21) à travers lesquelles un flux d'air de processus (13) peut être guidé à partir de l'espace extérieur (12) du tambour dans l'espace intérieur (11) du tambour,
    la paroi (20) ayant une surface plate ou convexe (A) qui est en face de l'espace extérieur (12) du tambour au moins entre deux des ouvertures d'air (21),
    la paroi (20) comprenant, au moins dans une région partielle, au moins deux pièces individuelles (20a, 20b),
    caractérisé en ce que les pièces individuelles (20a, 20b) de la paroi (20) sont des pièces embouties, miroir inversées, qui ont toutes les deux des colliers (23) qui entourent les ouvertures d'air (21), et
    en ce que des côtés de face (23a, 23b) des colliers (23) des pièces individuelles (20a, 20b) sont arrangés l'un en face de l'autre.
  7. Tambour à linge (10) pour un sèche-linge (1), le tambour à linge (10) ayant un espace intérieur (11) du tambour pour recevoir du linge (2) à sécher et comprenant une paroi (20),
    l'espace intérieur (11) du tambour étant séparé d'un espace extérieur (12) du tambour par la paroi (20),
    la paroi (20) ayant une pluralité d'ouvertures d'air (21) à travers lesquelles un flux d'air de processus (13) peut être guidé à partir de l'espace extérieur (12) du tambour dans l'espace intérieur (11) du tambour,
    la paroi (20) ayant une surface plate ou convexe (A) en face de l'espace extérieur (12) du tambour au moins entre deux des ouvertures d'air (21),
    la paroi (20) comprenant, au moins dans une région partielle, une première pièce individuelle (20a) et une deuxième pièce individuelle (20b),
    caractérisé en ce que la première pièce individuelle (20a) de la paroi (20) et la deuxième pièce individuelle (20b) de la paroi (20) ont chacune au moins un collier (23c, 23d) qui entoure une ouverture d'air commune (21),
    un collier (23d) de la deuxième pièce individuelle (20b) étant attribué au collier (23c) de la première pièce individuelle (20a),
    un diamètre intérieur (di) du collier (23c) de la première pièce individuelle (20a) étant supérieur ou égale à un diamètre extérieur (da) du collier attribué (23d) de la deuxième pièce individuelle (20b),
    le collier (23d) de la deuxième pièce individuelle (20b) étant arrangé à l'intérieur du collier attribué (23c) de la première pièce individuelle (20a) au moins dans une section.
  8. Tambour à linge selon la revendication 7, un collier (23d) de la deuxième pièce individuelle (20b) étant attribué à tous les colliers (23c) de la première pièce individuelle (20a), et particulièrement chaque collier (23d) de la deuxième pièce individuelle (20b) étant arrangé à l'intérieur du collier attribué (23c) de la première pièce individuelle (20a) au moins dans une section.
  9. Tambour à linge (10) selon l'une des revendications précédentes, la paroi (20) et une ouverture de remplissage (15) du tambour à linge (10) étant chacune arrangée sur des côtés de face opposés d'un baril cylindrique (14) du tambour de linge (10).
  10. Tambour à linge (10) selon l'une des revendications précédentes, une coupe transversale (d) d'au moins une des ouvertures d'air (21), particulièrement de toutes les ouvertures d'air (21), décroissant au moins dans une section à partir de l'espace extérieur (12) du tambour jusqu'à l'espace intérieur (11) du tambour.
  11. Tambour à linge (10) selon l'une des revendications précédentes, la paroi (20) ayant une surface plate ou convexe (A) qui est en face de l'espace extérieur (12) du tambour entre toutes les ouvertures d'air (21).
  12. Sèche-linge (1), particulièrement sèche-linge à pompe à chaleur, avec un tambour de linge (10) selon l'une des revendications précédentes.
EP11008792.1A 2011-11-04 2011-11-04 Tambour de lavage pour sèche-linge Active EP2426248B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11008792.1A EP2426248B1 (fr) 2011-11-04 2011-11-04 Tambour de lavage pour sèche-linge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11008792.1A EP2426248B1 (fr) 2011-11-04 2011-11-04 Tambour de lavage pour sèche-linge

Publications (2)

Publication Number Publication Date
EP2426248A1 EP2426248A1 (fr) 2012-03-07
EP2426248B1 true EP2426248B1 (fr) 2017-09-27

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EP11008792.1A Active EP2426248B1 (fr) 2011-11-04 2011-11-04 Tambour de lavage pour sèche-linge

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012202126A1 (de) * 2012-02-13 2013-08-14 BSH Bosch und Siemens Hausgeräte GmbH Wäschebehandlungsvorrichtung mit einer Wäschetrommel, die eine Lufteinlassöffnung aufweist

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
US2886901A (en) * 1957-02-08 1959-05-19 Gen Motors Corp Seal for rotary drum drier
US3146196A (en) * 1962-09-13 1964-08-25 Gen Electric Laundry centrifuging machine with improved clothes container
JPS54117164A (en) * 1978-03-03 1979-09-11 Matsushita Electric Ind Co Ltd Single-tank type dehydration washing machine
JPS5614584U (fr) * 1979-07-16 1981-02-07
JP2000107494A (ja) * 1998-10-07 2000-04-18 Hitachi Ltd 衣類乾燥機
DE10006975B4 (de) * 2000-02-16 2004-08-12 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrommel für eine Waschmaschine
DE10031038B4 (de) * 2000-06-16 2006-09-21 Pharmagg Systemtechnik Gmbh Verfahren zum Abscheiden von Verunreinigungen aus einer Flüssigkeit zum Waschen von Wäsche in einer Durchlaufwaschmaschine
ES2260977B1 (es) * 2003-07-15 2007-08-16 Bsh Electrodomesticos España, S.A. Tambor de lavadora de ropa.
EP1738011B1 (fr) * 2004-04-20 2009-06-10 LG Electronics, Inc. Lave-linge seche-linge
DE102005056942A1 (de) * 2005-11-29 2007-05-31 BSH Bosch und Siemens Hausgeräte GmbH Wärmetrockner mit Peltier-Wärmepumpe
DE102008044123A1 (de) * 2008-11-27 2010-06-02 BSH Bosch und Siemens Hausgeräte GmbH Isolierungslage und Wäschetrommel für ein Trocknungsgerät

Non-Patent Citations (1)

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