EP3332059A1 - Appareil d'entretien du linge pourvu d'un système à circulation - Google Patents

Appareil d'entretien du linge pourvu d'un système à circulation

Info

Publication number
EP3332059A1
EP3332059A1 EP16736477.7A EP16736477A EP3332059A1 EP 3332059 A1 EP3332059 A1 EP 3332059A1 EP 16736477 A EP16736477 A EP 16736477A EP 3332059 A1 EP3332059 A1 EP 3332059A1
Authority
EP
European Patent Office
Prior art keywords
pump
wash
wash liquor
laundry care
washing
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
EP16736477.7A
Other languages
German (de)
English (en)
Other versions
EP3332059B1 (fr
Inventor
Rodrigo FERRAZ MAINA
Dirk MISCHKE
Kurt Richter
Raymond Römer
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 PL16736477T priority Critical patent/PL3332059T3/pl
Publication of EP3332059A1 publication Critical patent/EP3332059A1/fr
Application granted granted Critical
Publication of EP3332059B1 publication Critical patent/EP3332059B1/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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/34—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling
    • 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
    • D06F39/083—Liquid discharge or recirculation 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/18—Washing liquid level
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/02—Water supply

Definitions

  • the present invention relates to a laundry care device with a circulation system.
  • circulation systems are used to pump wash liquor out of the tub by means of a pump and to recirculate the pumped wash liquor by means of the pump through the circulation system to the tub.
  • the liquor tank supplied liquor is passed directly to the laundry in the washing drum to wet the laundry with wash liquor.
  • the wash liquor is passed into the middle of the wash in the wash drum, whereby the supplied wash liquor may not evenly wet the laundry.
  • a laundry care device having a rotatably mounted washing drum for holding laundry, a suds container for holding washing liquor, the suds container having a discharge opening and an inlet opening, a circulation system which fluidly connects the discharge opening to the inlet opening the circulation system comprises a pump for pumping wash liquor into the wash tub, the pump being configured to pump the wash liquor into the wash tub at different pump pressures within the same wash to vary a location of the wash liquor in the rotating wash drum.
  • the technical advantage is achieved that come through the changing location of the wash liquor, which is introduced into the rotating washing drum, different areas of the laundry in the rotating washing drum with wash in contact, so that a uniform and thus complete wetting of the laundry is ensured in the washing drum.
  • the pump is operated at a constant speed during the circulation process, whereby a constant flow of washing liquor is obtained in the circulation system. Due to the constant flow rate of wash liquor, the wash liquor is pumped through the inlet opening with a uniform injection pattern into the wash basket, thereby providing a steady wash basket with a constant appearance of the supplied wash liquor in the wash tub.
  • the laundry may be pressed due to the centrifugal forces occurring on the drum wall of the washing drum, which can form a laundry tunnel in the middle of the washing drum.
  • the wash liquor injected through the inlet opening wets the laundry tunnel and is pressed radially outwards by the centrifugal forces that occur through the laundry.
  • the pump is designed to pump wash liquor within the same washing process with different pump pressures through the circulation system in the washing drum.
  • the different pump pressures result in different flow rates of the wash liquor in the circulation system. Due to the different flow rates of wash liquor, therefore, different injection patterns of the wash liquor passed through the inlet opening into the wash drum and, consequently, a varying location of the injected wash liquor on the wash in the rotating wash drum occur.
  • a laundry care device is understood to mean a device which is used for laundry care, such as a washing machine or a tumble dryer.
  • a laundry care appliance is understood as a household laundry care appliance. So a laundry care device, which is used in the context of household management, and is treated with the laundry in normal household quantities.
  • the laundry care appliance comprises a nozzle, which is arranged at the inlet opening, wherein the pump is designed to pump the washing liquor through the nozzle into the washing drum.
  • the nozzle has an advantageous shape for effectively redirecting the liquid flow of the wash liquor pumped through the nozzle, whereby the wash liquor can effectively wet the laundry in the wash tub.
  • the circulation system is fluidly connected to the inlet port and the nozzle located at the inlet port so that the pump pumps wash liquor at different pump pressures through the nozzle, thereby directing the wash liquor pumped through the nozzle with different injection patterns into the wash drum.
  • the pump is designed to pump wash liquor within the same washing process with periodically changing pump pressures in the washing drum, wherein the periodically changing pump pressures correspond in particular a sinusoidally running pump pressure change.
  • a temporally periodic change of the pump pressures of the pump can be advantageously realized by a corresponding control of the pump drive, whereby an advantageous control of the changing location of the wash liquor is made possible in the rotating washing drum.
  • the temporal periodic change in the pump pressure that the place of occurrence of the wash liquor in the washing drum also in time periodically changes, whereby a temporally uniform distribution of the wash liquor is achieved on the laundry.
  • the circulation system comprises a circulation hose which fluidly connects the drain opening to the inlet opening, the pump being connected to the circulation hose to pump wash liquor out of the tub into the circulation hose through the drain opening and the pumped wash liquor out of the wash tank To pump circulation hose through the inlet opening into the washing drum.
  • the laundry care appliance comprises a pump drive for driving the pump and a controller for controlling the pump drive, wherein the controller is designed to operate the pump drive at a first speed during a first time interval of the washing operation to wash liquor during the first Pumping time interval with a first pump pressure in the washing drum, and wherein the controller is configured to operate the pump drive at a second speed, which is different from the first speed during a second time interval subsequent to the first time interval, to wash liquor during the second Time interval with a second pump pressure, which is different from the first pump pressure to pump into the washing drum.
  • the laundry care appliance comprises a drum drive for driving the washing drum at a rotational frequency
  • the pump is designed to pump washing liquor into the washing drum at a pump pressure which changes according to a pumping frequency, the pumping frequency being dependent on the rotational frequency or on a multiple of the rotational frequency differs.
  • the technical advantage is achieved that is ensured by the different values of the pumping frequency of the pump and the rotational frequency of the washing drum that the changing location of the pumped through the pump into the washing drum wash liquor is passed to a large area of the drum shell of the washing drum.
  • the pumping frequency is lower than the rotational frequency.
  • the technical advantage is achieved that an advantageous wetting of the laundry in the washing drum can be ensured by the low pumping frequency.
  • the washing drum rotates several times under the introduced washing liquor jet through several times.
  • the pump pressure changes, different areas of the laundry in the washing drum are wetted.
  • the pump can be deactivated during a period of the washing process in order to set the pumping of washing liquor into the washing drum during the period of time.
  • the pump is designed to adjust the pumping of wash liquor into the wash drum during the time period, so that the wash present in the wash drum can be sufficiently flooded by wash liquor already present in the wash drum, thereby ensuring uniform wetting of the wash is reached.
  • the laundry care appliance comprises a fill level sensor which is designed to detect a fill level of wash liquor in the tub, wherein the pump is designed to change the pump pressure in dependence on the detected fill level of wash liquor.
  • the technical advantage is achieved that the pump pressure of the pump can be changed depending on the detected level of the wash liquor in the tub, thereby ensuring that the pump pressure can be adjusted to the amount of non-bonded to the laundry wash in the tub , This will ensure that if the level of wash liquor is low, the pump does not need to be turned off or the tub is not being pumped empty.
  • a flow sensor is arranged in the circulation system, which is designed to detect a flow rate of wash liquor in the circulation system, wherein the pump is designed to change the pump pressure in dependence on the detected flow rate of wash liquor.
  • the technical advantage is achieved that the pump pressure can be changed in dependence on the detected flow rate of wash liquor in the circulation system, in particular in the circulation tube, thereby ensuring that the pump pressure can be adapted to the detected flow rate of the wash liquor. This ensures that, given a possible blockage of the circulation system and consequent reduction in flow rate, the pump pressure of the pump can be changed accordingly to ensure efficient circulation of the wash liquor in the circulation system.
  • the inlet opening is arranged on a front side or on an upper side of the tub and the drain opening is arranged on an underside of the tub.
  • the technical advantage is achieved that by the appropriate positioning of the drain opening and the inlet opening to the tub effective drainage of wash liquor from the tub, or an effective feeding of wash liquor is made possible in the tub.
  • the inlet opening is located on an upper side or on a front side of the laundry care appliance, e.g. in the vicinity of a sleeve disposed on the tub, thereby enabling efficient circulation of wash liquor in the circulation system.
  • the washing drum comprises a device for moving laundry in the washing drum or a device for moving wash liquor in the washing drum.
  • the technical advantage is achieved that by the device for moving laundry in the washing drum or the device for moving wash liquor in the washing drum, such as. Wäschemit commentary, the wetting of laundry located in the washing drum is improved with wash liquor.
  • the device for moving laundry in the washing drum or the device for moving wash liquor in the washing drum such as. Wäschemit commentary
  • the wetting of laundry located in the washing drum is improved with wash liquor.
  • wash liquor can be moved through the device for moving wash liquor in the direction of rotation of the wash drum.
  • the circulation system comprises a depression for depositing impurities.
  • impurities can be collected in the recess of the circulation system, whereby these can then be advantageously removed from the circulation system.
  • the laundry care appliance comprises a filter unit, wherein the filter unit is arranged in the circulation system, and wherein the filter unit preferably comprises a foreign body trap for removing foreign bodies.
  • the technical advantage is achieved that foreign bodies, such as impurities, through the filter unit, or foreign body trap, can be effectively removed from the circulation system.
  • the object is achieved by a method for varying a location of wash liquor in a rotating washing drum in a laundry care device, wherein the laundry care device, the rotatably mounted washing drum for receiving laundry, a tub for receiving wash liquor, wherein the tub a discharge port and an inlet port, and a circulation system fluidly connecting the discharge port to the inlet port, the circulation system comprising a pump for pumping wash liquor into the wash tub, the method comprising pumping wash liquor within the same wash at different pump pressures in the washing drum to vary a location of the wash liquor in the rotating washing drum.
  • the technical advantage is achieved that by pumping wash liquor with different pump pressures and the resulting different flow rates of wash liquor in the circulation system, a different spraying behavior of the introduced into the washing drum wash liquor is achieved, whereby the place of occurrence of the wash liquor in the rotating washing drum can be varied to ensure an advantageous wetting of the laundry in the washing drum.
  • FIG. 1 is a schematic view of a laundry care device
  • FIG. 2 shows a schematic view of a laundry care appliance with a circulation system
  • Fig. 3 shows a sequence of a method for varying a location of occurrence of wash liquor, which is passed into the washing drum of a laundry care device.
  • FIG. 1 shows a schematic view of a general laundry care appliance 100, such as e.g. a washing machine.
  • the laundry care appliance 100 comprises an induction bowl 101, into which wash-care substance, such as e.g. Detergent, can be filled.
  • the laundry care appliance 100 comprises a door 103 for loading the laundry care appliance 100 with laundry.
  • FIG. 2 shows a schematic view of a laundry care device with a circulation system.
  • the laundry care device 100 comprises a circulation system 105, and a washing drum 107 for receiving laundry, a suds container 109 for receiving suds, which has an inlet opening 11 and an outlet opening 13.
  • the inlet opening 1 1 1 and the discharge port 1 13 are fluidly connected by a circulation hose 1 15, wherein the circulation tube 1 15 is connected to a pump 1 17.
  • a nozzle 1 18 is arranged, which is adapted to pass wash liquor into the washing drum 107 and optionally to wet in the washing drum 107 existing laundry.
  • the pump 1 17 is adapted to pump wash liquor through the discharge port 1 13 from the tub 109 in the circulation hose 1 15 and the pumped wash liquor from the circulation hose 1 15 through the inlet port 1 1 1 and through the nozzle 1 18 again in the tub 109 to pump.
  • the laundry care device 100 further comprises a pump drive 1 19 for driving the pump 1 17.
  • the wash lye transport in the laundry care apparatus 100 is optimized.
  • the pumped in the circulation system 105 wash liquor is pumped through the nozzle 1 18 directly to the laundry in the washing drum 107.
  • the injected through the nozzle 1 18 in the washing drum 107 wash liquor from the laundry bounce off and run back into the tub 109 without completely flood the laundry.
  • the washing drum 107 If the washing drum 107 is rotated very quickly, the laundry is pressed against the drum wall of the washing drum 107 due to the centrifugal forces occurring, whereby a wash tunnel forms in the washing drum 107.
  • the wash liquor is pumped by the pump 1 17 through the circulation hose 1 15 to the nozzle 1 18 and then introduced into the forming wash tunnel in the washing drum 107.
  • the pump drive 1 19 of the pump 1 17 is operated at a constant speed, whereby a constant flow rate of the wash liquor is provided during the recirculation of the wash liquor in the circulation system 105.
  • the laundry When the wash liquor is introduced into the wash drum 107 through the nozzle 18, the laundry is advantageously wetted in the middle of the wash tunnel forming the laundry drum 107, and due to the centrifugal forces occurring, the wash is washed through in the wash drum 107 in a wash tunnel outwardly directed radial direction.
  • the laundry at the front side fitting laundry is insufficiently wetted in a conventional injection mode, since the present at a constant pump pressure of the pump 1 17 constant occurrence of the guided through the nozzle 1 18 in the washing drum 107 wash liquor jet to the center of the wash tunnel in the washing drum 107th is aligned.
  • the pump 1 17 is formed, the wash liquor within the same washing process with different pump pressures through the circulation system 105, or through the circulation tube 1 15, through the inlet port 1 1 1 and through the nozzle 1 18 in the rotating washing drum 107th to pump.
  • the pump pressure of the pumped by the pump 1 17 in the circulation system 105 wash liquor correspondingly different flow rates of the funded by the pump 1 17 in the circulation system 105 wash liquor.
  • wash liquor is passed through the nozzle 1 18 in the washing drum 107, it comes due to the different flow rates of the wash in the circulation system 105 to a correspondingly different injection behavior of the wash into the washing drum 107 through the nozzle 1 18 and thereby to a correspondingly varying Location of the wash liquor in the rotating washing drum 107.
  • a rotating washing drum 107 almost every area of the washing drum 107 can be driven by the temporal change of the place of occurrence of the washing liquor fed into the washing drum 107, and thereby washing completely in the washing drum 107 with wash liquor be wetted.
  • the laundry care apparatus 100 further comprises a controller 121, which is connected to the pump drive 1 19 by a control connection 123 and is designed to control the pump drive 1 19, in particular to change the speed of the pump drive 1 19.
  • a controller 121 which is connected to the pump drive 1 19 by a control connection 123 and is designed to control the pump drive 1 19, in particular to change the speed of the pump drive 1 19.
  • the pump 1 17 can pump the wash liquor with periodically changing pump pressures into the wash drum 107, wherein the periodically changing pump pressures in particular correspond to a sinusoidally running pump pressure change.
  • the pump pressure of the pump 1 17 can be changed exactly so that at a time complete rotation of the washing drum 107 almost exactly one sine wave of the change of the pump pressure is completed, but not exactly one. It is thereby achieved that, in a renewed circulation of the washing drum 107 of the laundry tunnel of the laundry in the washing drum 107 is sprayed offset to the first circumnavigation.
  • FIG. 3 shows a sequence of a method for varying the location of occurrence of wash liquor, which is conducted into the wash drum of a laundry care appliance, wherein the laundry care appliance according to FIG. 2 is described.
  • the method 200 includes, as a method step, pumping 201 wash liquor within the same wash at different pump pressures into the wash basket 107 to vary a location of the wash liquor in the rotating wash drum 107.

Landscapes

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

Abstract

La présente invention concerne un appareil d'entretien du linge (100) comprenant un tambour (107) monté rotatif destiné à recevoir le linge, une cuve (109) destinée à recevoir le produit lessiviel, la cuve (109) présentant un orifice de sortie (113) et un orifice d'entrée (111), un système de circulation (105) qui assure la liaison fluidique entre l'orifice de sortie (113) et l'orifice d'entrée (111), le système de circulation (105) comprenant une pompe (117) permettant le pompage du produit lessiviel destiné au tambour (107). La pompe (117) est conçue pour pomper le produit lessiviel destiné au tambour (107) avec différentes pressions de pompage au cours de la même opération de lavage et faire varier l'emplacement d'entrée du produit lessiviel dans le tambour (107) en rotation.
EP16736477.7A 2015-08-04 2016-07-08 Appareil d'entretien du linge pourvu d'un système à circulation Active EP3332059B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16736477T PL3332059T3 (pl) 2015-08-04 2016-07-08 Urządzenie do przetwarzania prania z układem cyrkulacji

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015214803.3A DE102015214803A1 (de) 2015-08-04 2015-08-04 Wäschepflegegerät mit einem Zirkulationssystem
PCT/EP2016/066329 WO2017021101A1 (fr) 2015-08-04 2016-07-08 Appareil d'entretien du linge pourvu d'un système à circulation

Publications (2)

Publication Number Publication Date
EP3332059A1 true EP3332059A1 (fr) 2018-06-13
EP3332059B1 EP3332059B1 (fr) 2020-01-29

Family

ID=56372910

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16736477.7A Active EP3332059B1 (fr) 2015-08-04 2016-07-08 Appareil d'entretien du linge pourvu d'un système à circulation

Country Status (6)

Country Link
EP (1) EP3332059B1 (fr)
CN (1) CN107849794B (fr)
DE (1) DE102015214803A1 (fr)
PL (1) PL3332059T3 (fr)
RU (1) RU2673307C1 (fr)
WO (1) WO2017021101A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018206364A1 (de) * 2018-04-25 2019-11-21 BSH Hausgeräte GmbH Haushaltsgerät zur Pflege von Wäschestücken und Verfahren zum Betreiben eines Haushaltsgeräts
CN110468554B (zh) * 2018-05-10 2022-01-04 青岛海尔洗涤电器有限公司 滚筒洗衣机及其喷淋控制方法
DE102018214137A1 (de) * 2018-08-22 2020-02-27 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Einlassdüse
DE102019207239A1 (de) * 2019-05-17 2020-11-19 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung
KR20210001726A (ko) * 2019-06-28 2021-01-06 엘지전자 주식회사 세탁기의 제어방법
DE102022212508A1 (de) * 2022-11-23 2024-05-23 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010046125A (ja) * 2008-08-19 2010-03-04 Toshiba Corp 洗濯機
JP2011019607A (ja) * 2009-07-14 2011-02-03 Panasonic Corp 洗濯機
AU2010313875B2 (en) * 2009-11-02 2014-05-22 Lg Electronics Inc. Method for washing and washing machine including a mechanism for changing wash water into whirling water
ES2549388T3 (es) * 2010-01-20 2015-10-27 Miele & Cie. Kg Máquina lavadora y equipo de circulación
EP2428608B1 (fr) * 2010-09-14 2012-12-19 Miele & Cie. KG Procédé de fonctionnement d'une pompe dans un lave-linge, système mécatronique et lave-linge
JP5873968B2 (ja) * 2011-09-05 2016-03-01 パナソニックＩｐマネジメント株式会社 洗濯機
JP5919488B2 (ja) * 2011-09-05 2016-05-18 パナソニックＩｐマネジメント株式会社 ドラム式洗濯機
CN102733143B (zh) * 2012-04-11 2016-12-14 青岛海尔滚筒洗衣机有限公司 一种滚筒洗衣机洗涤控制方法及滚筒洗衣机
JP2013223551A (ja) * 2012-04-20 2013-10-31 Hitachi Appliances Inc 洗濯機
DE102013100908A1 (de) * 2013-01-30 2014-07-31 Miele & Cie. Kg Verfahren zum Betreiben einer Waschmaschine mit Umfluteinrichtung und Waschmaschine
TR201413632T1 (tr) * 2013-02-28 2015-03-23 Arcelik As Bir çamaşır makinesinde kullanılan etkinliği iyileştirilmiş yıkama ve durulama sistemi.
KR102196182B1 (ko) * 2014-10-27 2020-12-29 엘지전자 주식회사 세탁기

Also Published As

Publication number Publication date
RU2673307C1 (ru) 2018-11-23
EP3332059B1 (fr) 2020-01-29
DE102015214803A1 (de) 2017-02-09
CN107849794A (zh) 2018-03-27
CN107849794B (zh) 2020-04-24
PL3332059T3 (pl) 2020-07-13
WO2017021101A1 (fr) 2017-02-09

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