EP3696311A1 - Appareil électroménager destiné au traitement du linge - Google Patents

Appareil électroménager destiné au traitement du linge Download PDF

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Publication number
EP3696311A1
EP3696311A1 EP20152886.6A EP20152886A EP3696311A1 EP 3696311 A1 EP3696311 A1 EP 3696311A1 EP 20152886 A EP20152886 A EP 20152886A EP 3696311 A1 EP3696311 A1 EP 3696311A1
Authority
EP
European Patent Office
Prior art keywords
filter
fluid
unit
assemblies
essentially
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
EP20152886.6A
Other languages
German (de)
English (en)
Other versions
EP3696311B1 (fr
Inventor
Andreas Bischof
Hans Eglmeier
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 EP3696311A1 publication Critical patent/EP3696311A1/fr
Application granted granted Critical
Publication of EP3696311B1 publication Critical patent/EP3696311B1/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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/10—Filtering 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
    • 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
    • D06F33/42—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of draining
    • 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

Definitions

  • the invention relates to a household appliance for treating laundry.
  • filter units are used which are used to filter fluids.
  • This fluid can be a water-soap mixture, as is used, for example, in washing machines and dishwashers and / or washer-dryers, or consist of steam or process air, as is used, for example, in dryers and / or washer-dryers.
  • dirt particles get into the respective fluid during a cleaning or drying process, also called a cleaning or drying process.
  • the dirt particles can i.a. Food residues, hair, fats, sand, fibers from laundry items, microplastic particles and / or dust or dirt particles.
  • dirt particles are filtered out of the respective process by a filter unit during and / or after the cleaning or drying process.
  • a filter unit during and / or after the cleaning or drying process, one and / or more pumping processes can be carried out in which the fluid is pumped around, cleaned of dirt particles and reintroduced into the cleaning or drying process.
  • the so-called residual fluid remains, which is rich in dirt particles.
  • this residual fluid is no longer required and is pumped out of the household appliance and fed into a sink or a drain line.
  • the fluid is once again passed through the filter unit, as a result of which fewer or almost no dirt particles get into the waste water or into the waste water system.
  • a household appliance in particular a dishwasher, which essentially comprises a spray system and a filter assembly.
  • the filter assembly is arranged in a lower area of the washing compartment of the dishwasher.
  • the filter assembly is designed in the shape of a plate and has a first filter area which is located in an outer ring of the plate-shaped filter assembly is arranged, and a second filter area which is arranged in an inner ring of the plate-shaped filter assembly.
  • the filter unit also has a plate-shaped configuration and comprises a first and a second filter device.
  • the first filter device has separate segments with a fine-mesh filter membrane.
  • the second filter device on the other hand, consists of a coarse-meshed filter membrane. With these different membranes, different particles can be filtered out of the fluid.
  • the object according to the invention is achieved by a household appliance for treating laundry.
  • the household appliance comprises a device base and a The top of the device, the top of the device being arranged opposite the bottom of the device.
  • the household appliance has a pumping unit for pumping over and / or pumping out the fluid present during a cleaning and / or drying process.
  • the pump unit is essentially driven by a drive unit.
  • the household appliance according to the invention has a control unit for controlling the drive unit and a filter unit for filtering the fluid, the filter unit comprising a plurality of filter assemblies.
  • the multiple filter assemblies are arranged in series and are each fluidically connected to one another via at least one overflow.
  • the overflow prevents clogging of the filter unit or the filter assemblies, so that the fluid can be filtered in a further filter assembly of the filter unit even if one filter assembly is clogged. This also ensures that the filter unit can be used or throughput for longer without having to clean or replace the filter. An uncontrolled escape of the fluid from the cleaning and / or drying process when the filter unit is clogged is also avoided.
  • the filter unit advantageously has a filter inlet and a filter outlet, the fluid flowing through the filter inlet into the filter unit and the fluid flowing along a filter path to the filter outlet and flowing out of the filter unit through the filter outlet, the fluid flowing along essentially due to gravity the filter web flows.
  • a cost-effective production of the filter unit is ensured because a further drive unit and / or pump unit is not required for the filter unit in order to allow the fluid to flow along the filter path.
  • the filter unit comprises, the longer filtering or the use of the filter unit can be guaranteed.
  • the filter unit in order to be able to arrange the multiple filter assemblies, the filter unit must have a certain height.
  • the structure of the filter unit can vary depending on the space available.
  • the filter unit preferably extends from the top of the device almost to the bottom of the device.
  • the plurality of filter assemblies each advantageously have an upper filter area and a lower filter area, the upper filter area being arranged in the area of the top of the device and the lower filter area being arranged in the area of the bottom of the device. Furthermore, an overflow edge of the overflow is formed in the upper filter area and / or lower filter area.
  • the fluid acts on the filter assembly arranged closest to the filter inlet, the multiple filter assemblies being arranged in such a way that the fluid flows over at least one overflow edge of an overflow into the closest filter assembly when the filter assembly to which the fluid is applied is caused by deposits of fluid particles in the Is essentially undruchströmbar.
  • the plurality of filter assemblies are essentially arcuate.
  • the deposits or dirt particles in the fluid can slide into the lower filter area due to gravity, while filtering is maintained in the upper filter area.
  • the plurality of filter assemblies are advantageously arranged in a cascade.
  • the cascade-like or step-like arrangement ensures that the fluid flows to a further filter assembly due to the force of gravity.
  • a meandering filter web is understood to mean that the fluid looks for a way in which it can flow through the filter unit. However, this depends on the accumulation of dirt particles.
  • the meandering filter path essentially extends from the filter inlet to the filter outlet.
  • the object is achieved by a method for filtering fluids in a household appliance for treating laundry.
  • the household appliance for treating laundry comprises an appliance base and an appliance top, the appliance top being arranged opposite the appliance base.
  • the household appliance for treating laundry comprises a pump unit for pumping around and / or pumping out the fluid present during a cleaning and / or drying process, a drive unit for essentially driving the pump unit.
  • the drive unit is controlled by a control unit.
  • the household appliance for treating laundry has a filter unit for filtering the fluid, the filter unit comprising several filter assemblies. The multiple filter assemblies are arranged in series and fluidically connected to one another via at least one overflow.
  • the fluid is preferably pumped via the pump unit to a filter inlet through which the fluid flows into the filter unit, so that the fluid flows through the filter unit due to gravity along a filter path and acts on at least one of the plurality of filter assemblies and filtered through a filter outlet flows out of the filter unit, the filter web extending from the filter inlet to the filter outlet.
  • a cost-effective production of the filter unit is guaranteed because no further pump and drive units are required for the filter unit, since the fluid is driven by gravity and thus flows through the filter unit.
  • the fluid flows through the filter inlet to a filter assembly arranged closest to the filter inlet and the acted upon filter assembly is flowed through until the filter assembly becomes essentially impermeable.
  • the fluid flows over an overflow edge of the overflow to a filter assembly closest to the essentially impenetrable filter assembly.
  • the filtering process can also be continued when a filter assembly or a plurality of the filter assemblies of the plurality of filter assemblies have become almost impervious to flow.
  • FIG. 1 a schematic front view of a domestic appliance 1 for treating laundry, in particular a washing machine, is shown. Furthermore, a dryer, a washer-dryer or a dishwasher can also be read under a household appliance 1. For the sake of simplicity, only the washing machine as household appliance 1 is described in more detail below.
  • the household appliance 1 for treating laundry in Fig. 1 has a washing machine front wall 3.
  • a washing machine front wall 3 On the washing machine front wall 3 there is, among other things, a movable dispenser bowl 5, into which a washing care substance, such as a detergent and / or a fabric softener, can be filled, and a washing machine display unit 7, with which a washing program can be set, among other things.
  • a pivotable washing machine door 9 and a cleaning hatch (not shown), which is covered by a cleaning hatch cover 11, are arranged on the washing machine front wall 3 of the domestic appliance 1 for treating laundry.
  • the household appliance 1 has a top side 12a of the appliance and an appliance base 12b arranged opposite the top side 12a of the appliance.
  • FIG Fig. 2 A schematic side view of a filter assembly 13 which is arranged in a filter unit 15 is shown in FIG Fig. 2 shown.
  • the filter assembly 13 essentially comprises a filter frame 17.
  • a filter membrane 19 is arranged in the filter frame 17.
  • the filter membrane 19 is firmly connected to the filter frame 17.
  • the filter membrane 19 can be connected to the filter frame 17 via an adhesive and / or screw and / or clamp connection.
  • the filter frame 17 of the filter assembly 13 essentially has an arcuate shape, so that the The filter membrane 19 is accommodated in the filter frame 17 in a bent shape.
  • the arched design of the filter assembly can be designed in the shape of a banana.
  • the filter membrane 19 has an upper filter area 21 and a lower filter area 23. Depending on how the filter membrane 19 looks Fig. 2 is integrated into the filter unit 15, the in Fig. 2 Turn the upper and lower filter area 21, 23 shown. Ideally, the upper filter area 21 is arranged in the area of the top side 12a of the device and the lower filter area 23 in the area of the bottom 12b of the device.
  • the filter membrane 19 can have any membrane pattern.
  • the filter assembly 13 has an overflow edge 25.
  • the overflow edge 25 can be arranged either in the upper filter area 21 or in the lower filter area 23 of the filter frame 17.
  • the overflow edge 25 is arranged on the side of the filter frame 17 which faces the device top 12a.
  • An overflow 27 is formed in the area of the overflow edge 25.
  • the overflow preferably extends between the overflow edge 25 and the top side 12a of the household appliance 1. The overflow 27 and the overflow edge 25 will be discussed in greater detail below.
  • FIG. 3 is a schematic view of a cascade arrangement of the plurality of filter assemblies 13 of the filter unit 15 is shown.
  • the filter unit 15 essentially has a filter housing 29.
  • the filter housing 29 essentially comprises a filter inlet 31 and a filter outlet 33.
  • the filter inlet 31 is preferably formed in the area of the device top 12a.
  • the filter outlet 33 is preferably formed in the area of the device base 12b. This arrangement ensures that fluid 35 can flow from the filter inlet 31 to the filter outlet 33 as a result of gravity.
  • the filter inlet 31 and the filter outlet 33 are also formed at a different point on the filter unit 15.
  • the filter inlet 31 and the filter outlet 33 can also be formed on a side wall 40 of the household appliance. It only has to be ensured that the fluid 35 can flow in the filter unit 15 as a result of the force of gravity.
  • the filter unit 15 further comprises in Fig. 3 several filter assemblies 13.
  • the filter assemblies 13 are arranged in series. Furthermore, the plurality of filter assemblies are arranged in a cascade or stepped manner.
  • the filter assemblies 13 are firmly connected to the filter unit 15.
  • the filter assemblies 13 of the filter unit 15 are designed to be removable, for example for cleaning purposes.
  • it must be ensured that the individual filter assemblies 15 are firmly anchored in the filter unit 15. By applying the fluid 35 to the filter assemblies 13, these must not be torn out of their anchorage and thus interfere with a filtering process.
  • the filter assemblies 13 are essentially arcuate.
  • the filter assemblies 13 can, however, also have a slightly bent configuration, as in FIG Fig. 3 shown, be formed. However, it is also conceivable that the filter assembly can be hook-shaped, banana-shaped or any other shape.
  • the filter unit 15 has seven filter assemblies 13. However, more or fewer filter assemblies 13 are also conceivable. In order to ensure a long running time without cleaning the filter unit 15, it is advantageous if the filter unit 15 extends from the top side 12a of the device almost to the bottom 12b of the device. Depending on the available space in the household appliance 1, the filter unit 15 can vary in its design and be made larger or smaller.
  • the upper filter area 21 has the overflow edge 25.
  • the flow direction of the fluid 35 is shown in the area of the overflow 27 in the direction of arrow C.
  • Deposits of fluid particles 39 are shown in Fig. 3 shown by way of example on the first two filter assemblies 13 which are arranged closest to the filter inlet 31.
  • These fluid particles 39 can consist, among other things, of hair, fibers from items of clothing or shoes, fats, sand, leftover food, microplastic particles and / or dust or dirt particles.
  • more filter assemblies 13 can also be wetted with dirt particles or fluid particles 39.
  • a filtering process of the filter unit 15 is briefly described below.
  • the fluid 35 flows into the filter unit 15 via the filter inlet 31 in the direction of arrow A. After passing through the filter inlet 31, the fluid 35 hits the filter assembly 13 closest to the filter inlet 31 and flows through this first filter assembly 13. Due to the arrangement of the several filter assemblies 13 in FIG Fig. 3 , the fluid 35 must pass through all the filter assemblies 13 of the filter unit 15, the fluid particles 39 being essentially filtered out by the filter assembly 13 closest to the filter inlet 31. If the filtering process is already advanced, it can be done as in Fig. 3 is shown, already come to deposits of the fluid particles 39.
  • a filter assembly 13 If a filter assembly 13 is wetted with fluid particles 39 in such a way that the fluid 35 can no longer flow through a filter membrane 19 of a filter assembly 13, the fluid 35 flows over the overflow edge 25 in the direction of arrow C into the one closest to the filter assembly 13 that is not to be flowed through Filter assembly 13. In order for the fluid 35 to reach the overflow 27, a filter assembly 13 does not have to have become completely impervious to flow. A partial impermeability is sufficient for the fluid 35 to rise within a filter assembly 13, so that the fluid 35 flows to the downstream filter assemblies 13. The fluid 35 flows through the overflow 27 into a downstream filter assembly 13 until a filter assembly 13 is reached in which the fluid 35 can flow through the filter membrane 19.
  • a meandering filter web 37 is understood to mean that the fluid 35 in the filter unit 15 seeks a path through the arrangement of the filter assemblies 13, so that it reaches a filter assembly to be flown through and arrives at the filter outlet 33.
  • FIG. 4 Another embodiment or a further arrangement of the filter assemblies 13 of the filter unit 15 according to the invention is shown.
  • a filter unit 15 with essentially structurally identical filter assemblies 13 is shown.
  • the filter assemblies 13 differ from the filter assemblies 13 in FIG Fig. 3 in contrast, that the filter assemblies 13 have a different orientation.
  • the plurality of filter assemblies 13 extend in Fig. 4 from the device base 12b in the direction of the device top 12a.
  • five filter assemblies 13 are shown, for example.
  • more than five or less than five filter assemblies 13 are conceivable.
  • the filter assemblies 13 adjoin one of the side walls 40 or both side walls 40 of the filter housing 29.
  • the overflow 27 of the filter assembly 13 arranged last in series is designed such that the fluid 35 can flow to the filter outlet 33 when it flows over the overflow edge 25 of the filter assembly 13 furthest away from the filter inlet 31.
  • the filter assembly 13 arranged in the last row can adjoin one of the side walls and / or the top side 12a of the filter unit 15.
  • a viewing window 41 is formed in the area of the device bottom 12b, through which a user can look into the filter unit 15 to see whether the filter unit 15 needs to be cleaned, for example.
  • the viewing window 41 can, however, also be formed at a different point on the filter unit 15.
  • the filter assemblies 13 are arranged in a cascade. Furthermore, the filter assemblies 13 are arcuate, here almost parabolic. As shown, the filter assemblies 13 are connected to one another and thus form a filter assembly agglomerate 43 which consists of several individual filter assemblies 13. In Fig. 5 four filter assemblies 13 are shown. The number of filter assemblies 13 can, however, vary depending on the desired embodiment and filter performance.
  • each filter assembly 13 fulfills the same function or follow the same principle as already described above. Only the arrangement and, if necessary, the type of fastening of the filter assemblies 13 and / or the overflow edges 25 differ from the embodiments explained in more detail above.
  • FIG. 6 is schematically shown in a greatly simplified representation of a circulation principle of a household appliance 1 for treating laundry.
  • the household appliance 1 for treating laundry has a receiving area 47 for objects to be cleaned and / or dried, for example laundry or dishes.
  • fluid 35 is in the receptacle 47.
  • the fluid 35 is pumped by means of a pump unit 53 via an outlet opening 49 from the receptacle 47 into a pumping over or pumping out line 51 .
  • the pump unit 53 is driven by a drive unit 55, the drive unit 55 being driven or controlled by a control unit 57.
  • the drive unit 55 is coupled to the control unit 57 via a transmission element 59.
  • the pump unit 53 pumps the fluid 35 to the filter housing 29 of the filter unit 15, in which the fluid 35 is filtered. After the filter unit 15, the fluid 35 either flows into a drain 61 and exits the household appliance 1 or via a return line 51a to an inlet opening 63 which guides the fluid 35 back into the receiving area 47 of the household appliance 1.
  • the fluid 35 for example in a washing machine, is passed over the dispensing bowl 5 and is mixed there, for example, with detergent and / or fabric softener before the fluid 35 is fed into the receptacle 47.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP20152886.6A 2019-02-13 2020-01-21 Appareil électroménager destiné au traitement du linge Active EP3696311B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019201845.9A DE102019201845A1 (de) 2019-02-13 2019-02-13 Haushaltsgerät zum Behandeln von Wäsche

Publications (2)

Publication Number Publication Date
EP3696311A1 true EP3696311A1 (fr) 2020-08-19
EP3696311B1 EP3696311B1 (fr) 2024-09-11

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EP20152886.6A Active EP3696311B1 (fr) 2019-02-13 2020-01-21 Appareil électroménager destiné au traitement du linge

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EP (1) EP3696311B1 (fr)
CN (1) CN111560753B (fr)
DE (1) DE102019201845A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11795605B2 (en) 2022-01-20 2023-10-24 Haier Us Appliance Solutions, Inc. Washing machine appliance and filtration assembly
WO2023237200A1 (fr) * 2022-06-09 2023-12-14 Electrolux Appliances Aktiebolag Lave-linge équipé d'un dispositif de filtre à microparticules et procédé de commande dudit lave-linge
US11885063B2 (en) 2021-10-18 2024-01-30 Haier Us Appliance Solutions, Inc. Microfiber filtration system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102024104046A1 (de) * 2024-02-14 2025-08-14 Miele & Cie. Kg Waschmaschinen-Filtereinheit und Waschmaschine

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US5496468A (en) * 1994-04-26 1996-03-05 Cormier; Reginald Waste water management system with an auxiliary reservoir
US5779812A (en) 1995-08-25 1998-07-14 Whirlpool Corporation Multi-mesh mechanical filter screen system for dishwashers
DE10318270A1 (de) * 2003-04-22 2004-11-25 Oase Gmbh & Co. Kg Durchlauffilter mit Schmutzkontrolle
EP1743871A1 (fr) * 2005-07-14 2007-01-17 MEIKO Maschinenbau GmbH & Co. KG Traitement des effluents aqueux avec des automates de rinçage et de nettoyage dans plusieurs réservoirs
US7467636B2 (en) 2004-08-31 2008-12-23 Maytag Corporation Dishwasher pump and filtration system
EP3385439A1 (fr) * 2017-04-06 2018-10-10 SWATAB Scandinavian Water Technology AB Système et procédé de lavage d'articles avec eau purifiée

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PL3320137T3 (pl) * 2015-07-08 2021-02-08 BSH Hausgeräte GmbH Urządzenie do przetwarzania prania i sposób przetwarzania prania
JP2018183196A (ja) * 2015-09-11 2018-11-22 日本電産テクノモータ株式会社 洗濯機及び配管ユニット
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3040552A (en) * 1960-12-29 1962-06-26 Whirlpool Co Lint filter for use with washing machines
US5496468A (en) * 1994-04-26 1996-03-05 Cormier; Reginald Waste water management system with an auxiliary reservoir
US5779812A (en) 1995-08-25 1998-07-14 Whirlpool Corporation Multi-mesh mechanical filter screen system for dishwashers
DE10318270A1 (de) * 2003-04-22 2004-11-25 Oase Gmbh & Co. Kg Durchlauffilter mit Schmutzkontrolle
US7467636B2 (en) 2004-08-31 2008-12-23 Maytag Corporation Dishwasher pump and filtration system
EP1743871A1 (fr) * 2005-07-14 2007-01-17 MEIKO Maschinenbau GmbH & Co. KG Traitement des effluents aqueux avec des automates de rinçage et de nettoyage dans plusieurs réservoirs
EP3385439A1 (fr) * 2017-04-06 2018-10-10 SWATAB Scandinavian Water Technology AB Système et procédé de lavage d'articles avec eau purifiée

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11885063B2 (en) 2021-10-18 2024-01-30 Haier Us Appliance Solutions, Inc. Microfiber filtration system
US11795605B2 (en) 2022-01-20 2023-10-24 Haier Us Appliance Solutions, Inc. Washing machine appliance and filtration assembly
WO2023237200A1 (fr) * 2022-06-09 2023-12-14 Electrolux Appliances Aktiebolag Lave-linge équipé d'un dispositif de filtre à microparticules et procédé de commande dudit lave-linge

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Publication number Publication date
DE102019201845A1 (de) 2020-08-13
CN111560753B (zh) 2024-03-22
CN111560753A (zh) 2020-08-21
EP3696311B1 (fr) 2024-09-11

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