EP3330428A1 - Cuve d'un séche-linge - Google Patents

Cuve d'un séche-linge Download PDF

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Publication number
EP3330428A1
EP3330428A1 EP16201392.4A EP16201392A EP3330428A1 EP 3330428 A1 EP3330428 A1 EP 3330428A1 EP 16201392 A EP16201392 A EP 16201392A EP 3330428 A1 EP3330428 A1 EP 3330428A1
Authority
EP
European Patent Office
Prior art keywords
tub
lid
section
air duct
lid assembly
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.)
Granted
Application number
EP16201392.4A
Other languages
German (de)
English (en)
Other versions
EP3330428B1 (fr
Inventor
Raik BITTIGAU
Wenfeng Pang
Holger Reichner
Oliver SCHÖNE
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 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 Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to EP16201392.4A priority Critical patent/EP3330428B1/fr
Priority to PL16201392T priority patent/PL3330428T3/pl
Priority to CN201711213318.8A priority patent/CN108118505B/zh
Publication of EP3330428A1 publication Critical patent/EP3330428A1/fr
Application granted granted Critical
Publication of EP3330428B1 publication Critical patent/EP3330428B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • 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 
    • 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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/264—Tubs provided with reinforcing structures, e.g. ribs, inserts, braces
    • 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 tub of a clothes drying appliance comprising a rear tub section.
  • the invention also relates to a clothes drying appliance comprising such a tub.
  • the invention is particularly useful for washer-dryers.
  • the condenser is used to cool down the warm and wet process air coming from the clothes drum.
  • the condenser may be a water spray device or a process air/fluid heat exchanger using cold water or a working fluid of a heat exchanger as the fluid.
  • the rained-out condensate can be discharged and/or re-used.
  • the condenser is placed apart from the drum and from a washing tub surrounding the drum.
  • the condenser may be a component of a floor assembly.
  • a disadvantage of such constructions is that the condenser needs to be fluidically connected to the drum or washing tub using connecting parts like pipes. The connecting parts may cause additional air flow resistance, increased risk of water and air leakage and additional material costs. Also, this placement consumes design space.
  • a tub of a clothes drying appliance comprising a rear tub section comprising an air outlet opening, at least one lid attached to the rear tub section, an air duct connected to the air outlet opening and bounded by the rear tub section and the at least one lid, wherein the at least one lid bounding the air duct is a lid assembly comprising an inner rib structure.
  • the rear tub section and the at least one lid assembly form walls of the air duct.
  • the air duct is integrated into the tub and can be used to cool down the air flowing within the air duct. This avoids using connecting parts like pipes etc. to connect the drum to an external condenser thus reducing air flow resistance, risk of water and air leakage and material costs. This also allows for a very compact design.
  • the lid assembly gives a lightweight and strong mechanical re-enforcement to the rear tub section to compensate for a possible reduction of its bending stiffness caused by the integration of the air duct. Another advantage is that the materials of the rear tub section and the lid assembly can be freely chosen, e.g. individually for the rear tub section and the lid assembly.
  • the inner ribbed or rib structure in particular includes that ribs do not protrude from the lid assembly. This gives the additional advantage that clothes cannot get stuck at or ripped by the ribs and that the ribs do not cause a flow resistance within the air duct.
  • the clothes drying appliance may be a household appliance.
  • the tub (“washing tub”) surrounds a clothes drum.
  • the tub and the clothes drum may be aligned in a horizontal or near horizontal direction.
  • the clothes drum may be a horizontally rotatable drum while the tub is stationary.
  • the tub may comprise the rear the section and a front tub section.
  • the tub may have a generally cylindrical form, a longitudinal axis of which may coincide with a rotational axis of the clothes drum.
  • the front tub section may have an opening for inserting and removing clothes.
  • the air outlet opening connects the tub with components of an external section of a process air channel.
  • the other end of the air duct may open into the tub towards the drum.
  • the process air channel in full - including the drum and the condenser - may be a closed loop that also comprises at least one heater and a fan.
  • the fan may be placed near the air outlet opening to suck out air from the air duct.
  • the air duct is provided for guiding process air and may thus also be called a process air duct.
  • the air duct may be regarded as a section of the process air channel.
  • the lid assembly is unbroken in the sense that it does not comprise holes through which a parasitic flow of process air can enter the air duct outside the air inlet opening.
  • the inner rib structure is sandwiched between two unbroken cover layers.
  • the two unbroken cover layers prevent parasitic air flows into the air duct and that clothes can enter the air duct and be stuck there.
  • the unbroken cover layers provide an outer smooth surface of the lid assembly.
  • the interior or internal space of the lid assembly may comprise hollow spaces or cavities between ribs of the inner rib structure to achieve a particularly light-weight lid assembly.
  • the ribs are associated with one of the cover layers before the two cover layers are assembled or connected. This enables a particularly easy assembly, e.g. by welding.
  • ribs are associated with both of the cover layers before the two cover layers are assembled. In this case the ribs may be positioned adjacent to each other in the finished lid assembly or the ribs are shallow ribs that are to be connected together for assembly of the lid assembly (i.e., the ribs of one cover lid are to be brought in contact with opposite ribs of the other cover lid).
  • the rear tub section comprises a circular end wall or section and a side wall or section.
  • This form (which may also be called a bowl-like or shell-like form) gives the advantage that the tub may be positioned within the rear tub section in a particularly compact manner.
  • the rear tub section may have a generally circular or disk-like form.
  • the at least one lid assembly covers part of the end wall in a spaced manner.
  • the air duct is formed by the space between at least the cooling lid cover, the end wall, and the side wall.
  • the rear tub section comprises a central bushing.
  • the bushing may be used as a wall (inner side wall) of the air duct.
  • the bushing may be a bearing.
  • the lid assembly has a ring segmental form (i.e. only a section or segment of a fully circular form, e.g. approximately a half-ring form).
  • a ring segmental form i.e. only a section or segment of a fully circular form, e.g. approximately a half-ring form.
  • the ring segmental form may be placed such that the air inlet opening is positioned below the air outlet opening. This gives the advantage that water entering the air duct during a washing cycle will not reach the air outlet opening.
  • any water present in the air duct e.g. water spray or condensate
  • the air outlet opening is positioned in a top half, in particular in a top third, in particular in a top quarter of the end wall.
  • the air inlet opening may be positioned in a lower half, in particular in a lower third, in particular in a lower quarter of the end wall.
  • At least one lid assembly covers at least part of an inner side of the end wall.
  • the inner side is a side facing into the tub and the drum, respectively.
  • At least one lid assembly covers at least part of an outer side of the end wall.
  • the outer side is a side facing away from the tub and the drum, respectively.
  • the lid assembly is welded together from two parts each comprising one of the cover layers. Welding gives the advantage of a particularly robust connection.
  • the welding may comprise metal welding and/or plastic welding.
  • other connection methods can be used alternatively or additionally, e.g. gluing, pressing, screwing, riveting etc.
  • the welding may be friction welding, laser welding, ultrasound welding etc.
  • the material of the two parts may be identical of different. Different materials enable a particularly effective lid assembly.
  • the cooling lid assembly is welded to the rear tub section.
  • the welding may comprise metal welding and/or plastic welding.
  • other connection methods can be used alternatively or additionally, e.g. gluing, pressing, screwing, riveting etc.
  • the welding may be friction welding, laser welding, ultrasound welding etc.
  • the tub further comprises at least one open ribbed part ("lid") that is attached to an area of the rear tub section bounding the air duct.
  • the open ribbed lid may only have one cover layer.
  • An open ribbed lid may comprise a ribbed structure protruding from one side of a support layer, in particular a unbroken support layer. It is a variant that the open ribbed lid is connected to the rear tub section with its ribs first, i.e., the ribs are to be connected to the rear tub section.
  • this enables a smooth outer surface.
  • the open ribbed lid is welded to the rear tub section.
  • the welding may comprise metal welding and/or plastic welding.
  • other connection means can be used alternatively or additionally, e.g. gluing, pressing, screwing, riveting etc.
  • the welding may be friction welding, laser welding, ultrasound welding etc.
  • the ribbed structure of the lid assembly comprises at least one channel for working fluid.
  • the heat exchanger layer may comprise a meandering or a lattice-like pathway for the working fluid. This gives the advantage of a high channel density and thus a particularly high cooling effectiveness.
  • the working fluid may be water or working fluid of a heat pump of the clothes drying appliance, in particular a compressor heat pump. Alternatively, a heat exchanger may be placed within the air duct.
  • a clothes drying appliance comprising a tub as described above.
  • the clothes drying appliance may be embodied in analogy to the tub and gives the same advantages.
  • he clothes drying appliance may be a washer-dryer.
  • clothes drying appliance comprises a water spray device for spraying water into the air duct. This enables an especially cost-effective cooling of the process air.
  • Fig.1 shows an exploded view drawing of the rear tub section 1, a first cover layer 2 and an open ribbed second cover layer 3 which are part of a washing tub 4 of a household washer-dryer 5.
  • the rear tub section 1 has a bowl-like shape comprising a circular end wall 6 and a side wall 7 extending in a rectangular fashion from the circular end wall 6.
  • the free edge of the side wall 7 is constructed as a flange 8 that is used to contact a front tub section (not shown) of the washing tub 4.
  • the rear tub section 1 and the front tub section accommodate a rotatable clothes drum (not shown).
  • the circular end wall 6 comprises a central bushing 9 through which a shaft for rotating the drum can be led.
  • the rear tub section 1 is stationary.
  • the inner side 10 of the rear tub section 1 - which faces the drum and the front tub section, respectively - comprises a circular front-facing seating 11 extending inwards from the side wall 7 and a circular front-facing seating 12 extending outwards from bushing 9.
  • the seatings 11, 12 form segments of concentric rings centered on a longitudinal axis A of the rear tub section 1.
  • a lid assembly 2, 3 is provided to be seated on the seatings 11, 12.
  • the lid assembly 2, 3 is made from the two cover layers 2 and 3 which have been produced separately (e.g. as plastic parts, e.g. by injection moulding) and which have then been connected to each other.
  • the second cover layer 3 has an unbroken surface 13 that has a ring segmental form and that fits onto the seatings 11, 12.
  • Protruding or extending towards the first cover layer is a ribbed (“open ribbed") structure that comprises a multitude of radially aligned ribs 14.
  • the ribs 14 are straight ribs.
  • the space between the ribs 14 is hollow but may generally be filled with a filling material.
  • the first cover lid 2 is attached to the second cover layer 3 such that it connects with the ribs 14.
  • the first cover layer 2 may comprise ribs facing towards the second cover layer 3. These ribs may be connected to the ribs 14 (rib-on-rib connection) which also gives an inner rib structure.
  • Fig.2A shows the components of Fig.1 in a frontal view on an inner side 10, i.e. facing the drum.
  • the lid assembly 2, 3 When the lid assembly 2, 3 is seated onto seatings 11, 12, it covers a ring segment-like part of the rear tub section 1 in a spaced manner, forming an air duct 15.
  • an opening at a lower half of the rear tub section 1 is created which serves as an air inlet opening 16 to the air duct 15.
  • Process air P may enter the air duct 15 through the air inlet opening 16 and flow upwards within the air duct 15 (as indicated by the dotted arrows) to an air outlet opening 17.
  • the air outlet opening 17 is shown in Fig.2B at the outer side of the rear tub section 1.
  • the process air P can be e.g. sprayed with water to cool it down, as indicated by a spray outlet position of a respective water spraying device W.
  • the water may be sprayed through the air outlet opening 17.
  • Fig.3 shows a cross-sectional side view of components to be connected to a rear tub section 21, and a related assembly process. Only a half of the rear tub section 21 is shown. This rear tub section 21 can also be used as a component of the washing tub 4 of the household washer-dryer 5.
  • the rear tub section 21 is formed similar to the rear tub section 1. However, an open-ribbed first cover layer 22 now comprises the unbroken surface 13 and the ribs 14. The ribs 14 face a second cover layer 22 that has no ribs.
  • the plastic cover layers 22 and 23 are welded together by a welding process W1 to form the lid assembly 22, 23 that comprises an inner ribbed structure.
  • the lid assembly 22, 23 may be similarly formed to the lid assembly 2, 3, e.g. having a segmental ring-like form.
  • the lid assembly 22, 23 is then welded to the seatings 11, 12 of the plastic rear tub section 21 by a welding process W2 to form the air duct 15.
  • the air duct 15 is bounded or confined by the rear tub section 21 and the lid assembly 22, 23.
  • the lid assembly 22, 23 is positioned on an inner side 10 of the rear tub section 21.
  • an additional open ribbed lid 24 having ribs 14 facing an outer side of the end wall 6 of the rear tub section 21 may be attached to the rear tub section 21, more precisely to an area of the end wall 6 bounding the air duct 15.
  • the open ribbed lid 24 may be welded to the end wall 6 of the rear tub section 21 by a welding process W3. This may give an inner rib structure sandwiched between an unbroken surface of the open ribbed lid 24 and the unbroken covered area of the end wall 6. Therefore, the walls of the air duct 15 are doubly reinforced.
  • Fig.4 shows a cross-sectional side view of components to be connected to a rear tub section 31 and a related assembly process. Only a half of the rear tub section 31 is shown. This rear tub section 31 can also be used as a component of the washing tub 4 of the household washer-dryer 5. In contrast to the rear tub section 1, the lid assembly 32, 33 now covers the end wall 6 of the rear tub section 31 on its outer side.
  • An open-ribbed first cover layer 32 comprises the unbroken surface 13 and the ribs 14.
  • the ribs 14 face a second cover layer 32 that has no ribs.
  • the cover layers 32 and 33 are welded together by a welding process W1 to form the lid assembly 32, 33 that comprises an inner ribbed structure.
  • the lid assembly 32, 33 may have a segmental ring-like form.
  • the lid assembly 32, 33 is then welded to seatings 34 of the plastic rear tub section 31 by a welding process W2 to form the air duct 15.
  • the air duct 15 is bounded or confined by the rear tub section 31 and the lid assembly 32, 33.
  • the lid assembly 32, 33 is thus securely positioned on an outer side of the end wall 6 of the rear tub section 31.
  • Fig.5 shows a cross-sectional side view of components to be connected to a rear tub section 41 and a related assembly process. Only a half of the rear tub section 41 is shown. This rear tub section 41 can also be used as a component of the washing tub 4 of the household washer-dryer 5.
  • the rear tub section 41 is similar to the rear tub section 31 but is adapted to be additionally reinforced at its inner side 10.
  • an open ribbed lid 42 comprises ribs 14 facing an inner side of the end wall 6 of the rear tub section 41, more precisely an area of the end wall 6 bounding the air duct 15.
  • the open ribbed lid 42 may be welded to seatings 43 of the end wall 6 by a welding process W3. This may give an inner rib structure sandwiched between a preferably unbroken surface of the open ribbed lid 42 and the unbroken covered area of the end wall 6.
  • covers 32 and 33 can be welded together by a welding process W1 to form the lid assembly 32, 33, and the lid assembly 32, 33 can then be welded to the outer side of the rear tub section 41 by a welding process W2 to cover the air duct 15. Therefore, the walls of the air duct 15 are doubly reinforced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
EP16201392.4A 2016-11-30 2016-11-30 Cuve d'un séche-linge Active EP3330428B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP16201392.4A EP3330428B1 (fr) 2016-11-30 2016-11-30 Cuve d'un séche-linge
PL16201392T PL3330428T3 (pl) 2016-11-30 2016-11-30 Kadź suszarki do ubrań
CN201711213318.8A CN108118505B (zh) 2016-11-30 2017-11-28 衣物干燥器具的缸

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16201392.4A EP3330428B1 (fr) 2016-11-30 2016-11-30 Cuve d'un séche-linge

Publications (2)

Publication Number Publication Date
EP3330428A1 true EP3330428A1 (fr) 2018-06-06
EP3330428B1 EP3330428B1 (fr) 2020-11-18

Family

ID=57442562

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16201392.4A Active EP3330428B1 (fr) 2016-11-30 2016-11-30 Cuve d'un séche-linge

Country Status (3)

Country Link
EP (1) EP3330428B1 (fr)
CN (1) CN108118505B (fr)
PL (1) PL3330428T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020130966A1 (fr) * 2018-12-18 2020-06-25 Arcelik Anonim Sirketi Machine à laver/sécher le linge ayant une cuve à résistance mécanique améliorée
DE102020207452A1 (de) 2020-06-17 2021-12-23 BSH Hausgeräte GmbH Trommelgehäuse für Haushalts-Waschgerät sowie Haushalts-Waschgerät
CN114541078A (zh) * 2022-02-24 2022-05-27 冯聪亚 一种封闭式烘干脱水洗衣机

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1094141A2 (fr) * 1999-10-21 2001-04-25 Kabushiki Kaisha Toshiba Machine à laver à tambour avec une fonction de séchage
US20040045327A1 (en) * 2002-09-10 2004-03-11 Samsung Electronics Co., Ltd. Drum-type washing machine equipped with drying device
EP1659208A2 (fr) * 2004-11-17 2006-05-24 Samsung Electronics Co., Ltd. Machine à laver et/ou sécher
WO2009040302A1 (fr) * 2007-09-20 2009-04-02 BSH Bosch und Siemens Hausgeräte GmbH Cuve en plastique pour un lave-linge ou un sèche-linge
EP2412861A1 (fr) * 2010-07-30 2012-02-01 Electrolux Home Products Corporation N.V. Machine à laver et sécher le linge
EP2955264A1 (fr) * 2014-06-10 2015-12-16 BSH Hausgeräte GmbH Seche-linge

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2570548A1 (fr) * 2011-09-19 2013-03-20 Electrolux Home Products Corporation N.V. Laveuse-sécheuse avec au moins un condensateur
EP2843117A1 (fr) * 2013-08-27 2015-03-04 Electrolux Appliances Aktiebolag Sèche-linge à tambour rotatif

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1094141A2 (fr) * 1999-10-21 2001-04-25 Kabushiki Kaisha Toshiba Machine à laver à tambour avec une fonction de séchage
US20040045327A1 (en) * 2002-09-10 2004-03-11 Samsung Electronics Co., Ltd. Drum-type washing machine equipped with drying device
EP1659208A2 (fr) * 2004-11-17 2006-05-24 Samsung Electronics Co., Ltd. Machine à laver et/ou sécher
WO2009040302A1 (fr) * 2007-09-20 2009-04-02 BSH Bosch und Siemens Hausgeräte GmbH Cuve en plastique pour un lave-linge ou un sèche-linge
EP2412861A1 (fr) * 2010-07-30 2012-02-01 Electrolux Home Products Corporation N.V. Machine à laver et sécher le linge
EP2955264A1 (fr) * 2014-06-10 2015-12-16 BSH Hausgeräte GmbH Seche-linge

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020130966A1 (fr) * 2018-12-18 2020-06-25 Arcelik Anonim Sirketi Machine à laver/sécher le linge ayant une cuve à résistance mécanique améliorée
DE102020207452A1 (de) 2020-06-17 2021-12-23 BSH Hausgeräte GmbH Trommelgehäuse für Haushalts-Waschgerät sowie Haushalts-Waschgerät
CN114541078A (zh) * 2022-02-24 2022-05-27 冯聪亚 一种封闭式烘干脱水洗衣机
CN114541078B (zh) * 2022-02-24 2023-09-19 冯聪亚 一种封闭式烘干脱水洗衣机

Also Published As

Publication number Publication date
EP3330428B1 (fr) 2020-11-18
CN108118505A (zh) 2018-06-05
PL3330428T3 (pl) 2021-05-31
CN108118505B (zh) 2021-10-15

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