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EP3981905B1 - Lave-linge ayant une fonction de vaporisation et procédé de vaporisation du linge - Google Patents

Lave-linge ayant une fonction de vaporisation et procédé de vaporisation du linge

Info

Publication number
EP3981905B1
EP3981905B1 EP21197047.0A EP21197047A EP3981905B1 EP 3981905 B1 EP3981905 B1 EP 3981905B1 EP 21197047 A EP21197047 A EP 21197047A EP 3981905 B1 EP3981905 B1 EP 3981905B1
Authority
EP
European Patent Office
Prior art keywords
water
drum
heating element
laundry treatment
supply line
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
EP21197047.0A
Other languages
German (de)
English (en)
Other versions
EP3981905A1 (fr
Inventor
Dirk MISCHKE
Kai Nitschmann
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
Publication of EP3981905A1 publication Critical patent/EP3981905A1/fr
Application granted granted Critical
Publication of EP3981905B1 publication Critical patent/EP3981905B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/088—Liquid supply 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
    • 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 
    • D06F58/26—Heating arrangements, e.g. gas heating equipment
    • 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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • D06F35/006—Methods for washing, rinsing or spin-drying for washing or rinsing only
    • 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 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/028—Arrangements for selectively supplying water to detergent compartments
    • 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 
    • D06F39/04—Heating 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • D06F39/14—Doors or covers; Securing means therefor

Definitions

  • the present invention relates to a laundry treatment appliance with a steaming function and a method for steaming laundry in a laundry treatment appliance.
  • Some laundry treatment appliances particularly washing machines, already have a steaming function.
  • a heating element converts water in a tub into hot steam, which is then directed into a drum containing the laundry.
  • a steaming function can be used either in combination with a wash program or separately.
  • the steaming function can minimize wrinkles in laundry, remove odors and/or allergens, and/or replace additional treatment agents such as fabric softener or other chemical cleaning agents.
  • Using the steaming function alone can also be used to freshen laundry, e.g., remove wrinkles and odors from clothes that have been worn once.
  • the KR 100605732 B1 This image shows a drain hose for a washing machine, located in a door seal.
  • the drain hose is designed so that any remaining water can be drained away immediately after the wash cycle.
  • the tub can be suspended in a housing of the laundry treatment appliance in a vibration-damped manner.
  • the tub can be designed to be watertight, with the exception of at least one water supply (e.g., the water inlet) and one water outlet.
  • the tub can have the water inlet provided in the region of the opening and a main water inlet arranged to direct water directly onto the drum.
  • the tub can be cylindrical and have an opening at one axial end thereof that can be closed with the door.
  • the tub can accommodate the drum within it.
  • a gap can be formed between the tub and the drum, the size of which can be selected such that an imbalance of the drum during operation of the laundry treatment appliance does not lead to contact between the drum and the tub. In other words, when there is water in the tub, the drum can be above the water level so that no water penetrates into the drum.
  • the drum is preferably designed to accommodate laundry therein.
  • the drum may have a cylindrical shape having a can be opened.
  • the drum can have a plurality of through-holes in its peripheral surface or shell surface.
  • the drum can be rotatably held in the tub.
  • the drum is designed so that, when the door is open, laundry can be put into the drum through the opening of the tub.
  • the opening of the drum can substantially correspond to the opening of the tub and face towards it.
  • Water can be supplied to the drum by directing the water directly through the main water inlet around the circumference of the drum and entering the drum through the through-holes.
  • water can be supplied to the drum by letting water into the tub until the drum is partially submerged in the water.
  • the prescribed water supply methods can also be combined.
  • the sealing sleeve is arranged concentrically to the sight glass, whereby it can sag downwards when the tub is full, in particular when filled with water, without negatively affecting its sealing effect.
  • the sealing sleeve can be a bellows, in particular a rubber bellows.
  • the sealing sleeve can serve as a sealing connection between a vibrating area (suds container and drum) and a relatively stationary housing and door of the laundry treatment appliance.
  • the sealing sleeve can serve as a sealing lip for sealing the opening with the door and/or the sight glass.
  • the sealing sleeve can preferably have folds. The openings or at least a gap can be provided between the folds to drain the water.
  • the laundry treatment appliance may further comprise a second valve and a third valve, wherein the second valve may be configured to supply water for a main wash cycle to the tub, wherein the third valve may be configured to supply water for a pre-wash cycle to the tub via the water supply line.
  • a water merging device for example a Y-piece
  • a water merging device can be arranged downstream of the first valve and the third valve, which is designed to combine water from the first valve and water from the third valve in a common line.
  • the second valve can be designed to supply water to the main water inlet.
  • the three valves can be part of a valve arrangement that can be controlled by the control unit.
  • the valve arrangement can comprise a Y-piece, which can be arranged downstream of the first and third valves and which can be designed to combine water coming from the first valve and water coming from the third valve into a common line.
  • the Y-piece can be an integral part of the valve arrangement or the Y-piece can be attached to the valve arrangement.
  • the control unit can preferably be configured to supply 0.5 l to 5 l, preferably 1 l to 2 l, and particularly preferably 1.3 l to 1.7 l, of water to the heater pocket for the steaming function.
  • a suitable total water supply can ensure, on the one hand, that the water level in the layer container is not too high, i.e., that the water does not reach the drum and the laundry contained therein, and, on the other hand, ensures that the heater is immersed in the water to ensure evaporation of the water without the heater overheating.
  • the use of a laundry treatment appliance is advantageous in which a water supply line used for cuff rinsing is supplied with water at a low volume flow in order to supply water to the heating element pocket while bypassing the drum.
  • the low volume flow is in the range of 0.1 l/min to 2.0 l/min, preferably 0.2 l/min to 1.0 l/min, and particularly preferably 0.3 l/min to 0.7 l/min.
  • Water can be fed to the water supply line 8 via a second water outlet 19, which is connected to the pre-wash chamber 17 of the treatment agent container 15.
  • the water supply line 8 is designed to direct the water to a sight glass 7 in the door 6.
  • the sight glass 7 is designed such that the water can be directed, bypassing the drum 5, to a heater pocket 3 in which a heater 4 is arranged. There, the water can be heated by the heater 4, creating steam.
  • the heater pocket 3 is in fluid communication with the tub 2, via which the steam can enter the drum 5.
  • the flow or volume flow of water that is directed through the water supply line 8 is controlled by a control unit 9 (not shown). By setting a sufficiently low volume flow, it is possible to prevent the water that is directed via the sight glass 7 from entering the drum 5 and possibly unintentionally moistening the laundry.
  • Both the first valve 12 and the third valve 14 feed the water into the pre-wash chamber 17 of the treatment agent container 15, for which purpose the outlets of these two valves 12, 14 are brought together by means of a Y-piece 25.
  • the valves can be designed such that the first valve 12 allows only a low water flow rate for a steaming program, while the third valve 14 allows a larger water flow rate for a pre-wash program. In both cases, the water is conducted via the existing path via the pre-wash chamber 17.
  • the treatment agent container 15 can preferably be designed such that it directs water from the pre-wash chamber 17 exclusively into the water supply line 8, which leads to the sight glass 7, in particular if the volume flow rate supplied to the pre-wash chamber 17 is sufficiently low that the water does not reach the main water inlet 30 of the main wash program to the drum 5.
  • Fig. 3 shows a perspective view of the sight glass 7 of the door 6, wherein the sight glass 7 is conical in this embodiment.
  • the cone is directed towards the drum 5.
  • water supply line 8 (not shown in Fig. 3 ), which is located above the sight glass 7, water is directed onto a casing surface 21 of the conical sight glass 7 as part of the vaporization function.
  • the water is then passed through the sight glass 7 to a sealing sleeve 10 as indicated by arrows, for example in the form of a trickle along the casing surface 21.
  • the casing surface has a contour which is designed in such a way that it can guide the water downwards in the direction of a sealing sleeve 10.
  • the water runs along the sight glass 7 without entering the drum 5.
  • Openings 11 are arranged in the lower area near or on the sealing sleeve 10.
  • the sealing sleeve 10 and the openings 11 are designed and/or arranged in such a way that the water is drained into a sleeve gap 31 between the folds of the sealing sleeve 10 and from there via the openings 11. From there, the water reaches the heating element pocket 3. Steam generated from the water by means of the heating element 4 can also be guided upwards and into the drum 5 via the openings 11. In other words, the volume flow is set by the control unit 9 such that the water is guided exclusively via the sight glass 7 to the heating element pocket 3.
  • a sleeve flush water can be supplied to the heating element pocket 3 without the water entering the drum 5. Laundry in the drum 5 is therefore not directly moistened as part of the steaming program, and no water spots are created on the laundry.
  • Fig. 7 shows a final section 26 of the water supply line 8 according to an embodiment of the present invention. This is designed such that water which reaches the final section 26 through a water inlet 27 is guided through the water outlet 28 onto the sight glass 7 of the door 6. If the volume flow is sufficiently low, the water drips over the lip 29 in a defined manner onto the sight glass 7, in particular onto a casing region 21 of the sight glass 7.
  • the lip 29 can ensure that water discharged from the water supply line 8 impacts the casing region 21 of the sight glass 7 in a targeted manner (i.e. in a defined manner).
  • the lip 29 can in particular reduce the flow velocity of the escaping water. This prevents water from getting into the drum 5.
  • Fig. 8 shows a method 100 according to the invention for steaming laundry in the laundry treatment appliance 1 in the form of a flow chart.
  • a laundry treatment appliance 1 according to one of the previously described embodiments is provided.
  • the next step 102 comprises controlling a volume flow of water that is fed to the water supply line 8.
  • the water is supplied to the heating element pocket 3, bypassing the drum 5, by being guided through the water supply line 8 onto the sight glass 7 of the door and along the sight glass 7.
  • the water can preferably be guided over a jacket region 21 of a conical sight glass 7.
  • the water is heated by the heating element 4 placed in the heating element pocket, so that the generated steam flows into the drum 5.

Landscapes

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

Claims (9)

  1. Appareil de traitement du linge (1) avec une fonction de vaporisation, dans lequel l'appareil de traitement du linge (1) présente :
    une cuve de lavage (2), qui comprend une poche de corps de chauffe (3) avec un corps de chauffe (4) logé dans celle-ci,
    un tambour (5) qui est disposé de façon rotative dans la cuve de lavage (2),
    une porte (6) pour l'obturation d'une ouverture de la cuve de lavage (2), par laquelle le tambour (5) est accessible, dans lequel la porte (6) présente un verre de regard (7) faisant saillie vers le tambour (5) et dans lequel la poche de corps de chauffe (3) est disposée plus bas que la porte (6) dans une position de fonctionnement de l'appareil de traitement du linge (1), une conduite d'alimentation en eau (8) aménagée pour alimenter la poche de corps de chauffe (3) en eau, dans lequel la conduite d'alimentation en eau (8) est positionnée dans la cuve de lavage (2) de sorte que l'eau à fournir à la poche de chauffe (3) puisse s'écouler via le verre de regard en saillie (7), et
    une unité de commande (9) aménagée pour commander un débit volumique de l'eau à fournir à la poche de corps de chauffe (3) via la conduite d'alimentation en eau (8) de sorte que l'eau contourne le tambour (5) le long du verre de regard en saillie (7) et puisse être dirigée dans la poche de corps de chauffe (3), de sorte que le débit volumique est commandé selon une valeur comprise dans la plage de 0,1 L/min à 2,0 L/min, de préférence de 0,2 L/min à 1,0 L/min et de façon particulièrement préférée de 0,3 L/min à 0,7 L/min.
  2. Appareil de traitement du linge (1) selon la revendication 1, dans lequel le verre de regard en saillie (7) de la porte (6) est formé sous la forme d'une saillie conique en direction du tambour (5), dans lequel la conduite d'alimentation en eau (8) est disposée de sorte que l'eau puisse être dirigée sur la zone d'enveloppe (21) de la saillie, en particulier sur une zone plus proche de l'origine de la saillie que de son extrémité faisant saillie dans le tambour (5).
  3. Appareil de traitement du linge (1) selon la revendication 2, dans lequel la saillie présente un contour qui est aménagé pour détourner l'eau à fournir à la poche de corps de chauffe (3) de façon définie via la saillie en contournant le tambour (5).
  4. Appareil de traitement du linge (1) selon l'une des revendications précédentes, dans lequel la cuve de lavage (2) présente une garniture d'étanchéité (10) qui, dans un état fermé de la porte (6), étanchéifie l'ouverture de la cuve de lavage (2) conjointement avec la porte (6), et dans lequel des ouvertures (11) sont disposées sur ou près de la garniture d'étanchéité (10), à travers lesquelles l'eau détournée au niveau de la saillie peut être amenée directement vers la poche de corps de chauffe (3).
  5. Appareil de traitement du linge (1) selon l'une des revendications précédentes, dans lequel l'unité de commande (9) est aménagée pour ouvrir et fermer une première soupape (12) disposée en amont de la conduite d'alimentation en eau (8), pour commander ce faisant le débit volumique de l'eau à fournir à la poche de corps de chauffe pour la fonction de vaporisation.
  6. Appareil de traitement du linge (1) selon la revendication 5, dans lequel l'appareil de traitement du linge (1) comprend en outre une deuxième soupape (13) et une troisième soupape (14), dans lequel la deuxième soupape est aménagée pour alimenter la cuve de lavage (2) en eau pour un cycle de lavage principal, dans lequel la troisième soupape est configurée pour alimenter la cuve de lavage (2) en eau pour un cycle de prélavage via la conduite d'alimentation en eau (8).
  7. Appareil de traitement du linge (1) selon l'une des revendications précédentes, dans lequel l'appareil de traitement du linge (1) comprend un réservoir à agent de traitement (15) disposé en amont de la conduite d'alimentation en eau (8), dans lequel le réservoir à agent de traitement (15) présente une chambre de lavage principal (16) pour un agent de traitement à utiliser pendant un cycle de lavage principal, et une chambre de prélavage (17) pour un agent de traitement à utiliser pendant un cycle de prélavage, dans lequel le réservoir à agent de traitement (15) est aménagé de sorte que l'eau à fournir directement à la poche de corps de chauffe (3) pour la fonction de vaporisation peut être dirigée à travers la chambre de prélavage (17).
  8. Appareil de traitement du linge (1) selon la revendication 7, dans lequel le réservoir à agent de traitement (15) présente une première sortie d'eau (18) et une deuxième sortie d'eau (19), dans lequel la première sortie d'eau (18) est aménagée pour alimenter le tambour (5) en eau et la deuxième sortie d'eau (19) est aménagée pour alimenter la conduite d'alimentation en eau (8) en eau.
  9. Procédé (100) pour la vaporisation de linge dans un appareil de traitement du linge (1), dans lequel le procédé comprend :
    la mise à disposition d'un appareil de traitement du linge (1) selon l'une des revendications précédentes,
    la commande d'un débit volumique d'eau fournie par la conduite d'alimentation en eau (8) de sorte que l'eau soit fournie à la poche de corps de chauffe (3) en contournant le tambour (5), dans lequel l'eau est dirigée par la conduite d'alimentation en eau (8) via le verre de regard (7) de sorte que le débit volumique soit commandé selon une valeur dans la plage de 0,1 L/min à 2,0 L/min, de préférence de 0,2 L/min à 1,0 L/min et de façon particulièrement préférée de 0,3 L/min à 0,7 L/min, et
    le chauffage de l'eau dans la cuve de lavage (2) par le corps de chauffe (4) logé dans la poche de corps de chauffe (3), de sorte que la vapeur générée s'écoule dans le tambour (5).
EP21197047.0A 2020-10-08 2021-09-16 Lave-linge ayant une fonction de vaporisation et procédé de vaporisation du linge Active EP3981905B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020212699.2A DE102020212699A1 (de) 2020-10-08 2020-10-08 Wäschebehandlungsgerät mit bedampfungsfunktion und verfahren zum bedampfen von wäsche

Publications (2)

Publication Number Publication Date
EP3981905A1 EP3981905A1 (fr) 2022-04-13
EP3981905B1 true EP3981905B1 (fr) 2025-08-20

Family

ID=77801535

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21197047.0A Active EP3981905B1 (fr) 2020-10-08 2021-09-16 Lave-linge ayant une fonction de vaporisation et procédé de vaporisation du linge

Country Status (3)

Country Link
EP (1) EP3981905B1 (fr)
CN (1) CN114395897B (fr)
DE (1) DE102020212699A1 (fr)

Cited By (1)

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US11389064B2 (en) 2018-04-27 2022-07-19 Teladoc Health, Inc. Telehealth cart that supports a removable tablet with seamless audio/video switching

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DE102022207150A1 (de) * 2022-07-13 2024-01-18 BSH Hausgeräte GmbH Bedampfungssystem für ein wasserführendes Haushaltsgerät mit einem reduzierten Volumenstrom einer Wasserzufuhr
DE102022208538A1 (de) * 2022-08-17 2024-02-22 BSH Hausgeräte GmbH Einspülschlauch für ein wasserführendes Haushaltsgerät
DE102022208546A1 (de) * 2022-08-17 2024-02-22 BSH Hausgeräte GmbH Verfahren zur Dampfbehandlung von Textilien

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KR100605732B1 (ko) * 2004-08-09 2006-08-01 주식회사 대우일렉트로닉스 드럼 세탁기 도어 가스켓의 배수 호스
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Publication number Priority date Publication date Assignee Title
US11389064B2 (en) 2018-04-27 2022-07-19 Teladoc Health, Inc. Telehealth cart that supports a removable tablet with seamless audio/video switching

Also Published As

Publication number Publication date
CN114395897A (zh) 2022-04-26
EP3981905A1 (fr) 2022-04-13
CN114395897B (zh) 2025-10-28
DE102020212699A1 (de) 2022-04-14

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