EP2920352B1 - Ensemble filtrant pour une machine de traitement du linge - Google Patents

Ensemble filtrant pour une machine de traitement du linge Download PDF

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Publication number
EP2920352B1
EP2920352B1 EP13783580.7A EP13783580A EP2920352B1 EP 2920352 B1 EP2920352 B1 EP 2920352B1 EP 13783580 A EP13783580 A EP 13783580A EP 2920352 B1 EP2920352 B1 EP 2920352B1
Authority
EP
European Patent Office
Prior art keywords
liquid
area
filter assembly
receiving space
openings
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP13783580.7A
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German (de)
English (en)
Other versions
EP2920352A1 (fr
Inventor
Holger Hennig
Gerhard Pleban
Andreas THÜMMLER
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.)
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Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL13783580T priority Critical patent/PL2920352T3/pl
Publication of EP2920352A1 publication Critical patent/EP2920352A1/fr
Application granted granted Critical
Publication of EP2920352B1 publication Critical patent/EP2920352B1/fr
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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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/22—Lint collecting arrangements

Definitions

  • the invention is in the field of laundry treatment appliances, such as in particular tumble dryer, washer-dryer and / or washing machines, and relates to a filter assembly for a laundry treatment machine with a filter for filtering out impurities that carries a liquid flowing in the laundry treating machine, and with a receiving space for the deposition of filtered impurities having at least one passage area with a plurality of passage openings for the liquid.
  • Such filter arrangements are known for various purposes, in particular for the filtration and deposition of hair, lint and lint (hereinafter collectively and generalized as impurities), and in various embodiments.
  • the font DE 88 12 477 U1 describes an external filter device with a container, between the inlet and outlet nozzle filter elements are provided.
  • a first, removable (preferably inclined) coarse filter element and a second (preferably vertically arranged) fine filter element are provided in the container.
  • the filter elements can be provided with increasingly larger to its upper edge filter pores or openings.
  • the washing liquor flowing into the impact side of the coarse filter element is distributed over a large area there and a majority of the lint from the wash liquor is already retained there. After flowing through the coarse filter element, the wash liquor flows in a direction of the container bottom directed flow direction to the fine filter element.
  • Fine contaminants remaining in the wash liquor are deposited in a gap formed between the two filter elements without this deposition process being controlled or optimized. This is irrelevant in this known filter device, because this is preferably as a mobile filter device outside the washing machines and is designed for a regular, easy need-cleaning.
  • a filter assembly of the type mentioned is from the Scriptures DE 10 2010 039 603 A1 known.
  • the receiving space serves for the (permanent) uptake and deposition of contaminants, which carries the condensate flowing through the receiving space.
  • the condensate serves as a rinsing liquid for rinsing and cleaning components of the laundry treatment device, which can fluff, hair, lint and the like settle during operation and thereby affect the performance of these components.
  • the receiving space has in the ceiling area and at one end side inflow openings for coming from different components to be cleaned rinsing liquid. The liquid thus enters the receiving space, in the bottom of which several holes are introduced.
  • a lint filter may be provided and designed, for example, as a nonwoven layer, as a rigid filter made of perforated metal or plastic sheet or as a sieve.
  • This known filter arrangement is designed comparatively space-optimized and is preferably used in a laundry treatment appliance, the filter assembly is designed as a life-Flusendepot.
  • the filter assembly is designed as a life-Flusendepot.
  • a complete filling or optimal utilization of the available recording space is not guaranteed in every case.
  • a lint storage system to be arranged in a cover plate of a dryer emerges.
  • This comprises a carrier to be covered by a cover, which can be traversed by air laden with fluff from a first boundary wall to a second boundary wall and in which a lint filter with a U-shaped cross-section is arranged for catching the lint.
  • the lint filter has many openings provided with a filter material, for passing the air, which are shaped and arranged so that the air exits mainly through the openings in the vicinity of the second boundary wall.
  • the passage openings are arranged and / or dimensioned in the passage region such that a throughput gradient for the liquid results over the passage region, so that the flowing liquid enters the receiving space in a predetermined manner so interspersed that the filling of the receiving space and the deposition of impurities in a preferred direction, wherein the total area of the passage openings per unit area decreases from an initial area to an end region decreases.
  • a first advantage of the invention is that the arrangement or the design of the passage openings - in particular their respective opening width and the number of passage openings per unit area - ensure that the flowing liquid passes through the receiving space in a predetermined manner and thus does not contaminate Stochastic and random deposit, but with predetermined preference.
  • the throughput of liquid in a certain area of the receiving space can be conveyed, so that throughput controlled a predetermined distribution and flow main direction the liquid consists.
  • the deposition of the impurities can initially begin in a first preferred range or at least take place predominantly there.
  • the receiving space fills from this first area starting in an orderly manner gradually according to the flow rate gradient in a predetermined manner or direction.
  • the passage area is inhomogeneous with respect to the throughput of liquid through the passage openings and designed so that pass through at least a portion of the passage area only comparatively small proportions of the total flowing liquid (eg a Spülwasservolumenstroms), while another section a lighter and faster Passage of the liquid allows, whereby a targeted throughput control and thus a throughput gradient over the passage area is realized.
  • the (main) flow of the liquid is influenced by the filter arrangement such that the filling of the receiving space, e.g. takes place in a preferred direction.
  • the volume of the receiving space for the deposition and storage of impurities is optimally filled and utilized.
  • the total area of the passage openings per unit area decreases from an initial area to an end area.
  • the initial area thus advantageously forms the targeted beginning or initial location of the deposits of the deposited impurities, which then from there according to the flow rate gradient controlled to the end, preferably in stages (stages), further deposit.
  • the liquid-permeable surface portion in particular the screen area portion, can be relatively small, so that there - initially - only a small portion of the liquid flow expires, while the main body the flow of liquid in the rear or distal region of the passage region (initial region) seen in the inflow direction passes, because there the process takes place substantially more rapidly and more rapidly.
  • the liquid flow is then increasingly discharged through the front passage openings, because the flow through the rear, larger passage openings by the successive deposits is increasingly difficult.
  • the filter arrangement according to the invention for cleaning and filtering a Spülwasservolumenstroms, in the manner described in the introduction and known per se in a laundry treatment machine for cleaning components - such. a lint filter in the drying air cycle or a heat exchanger for recovering heat energy from the process air of lint deposits.
  • the passage area is located in the bottom of the receiving space.
  • the inflowing liquid distributes particularly reliably in the desired manner - controlled by the throughput gradient due to the inhomogeneous configuration of the respective throughput through the passage openings - and leads to the desired deposition sequence of the lint and impurities even with a comparatively uncontrolled and surge-like inflow of the liquid ,
  • the passage openings are preferably designed as sieve segments.
  • the screen size can be used in addition or alternatively to control the respective throughput by the effective area of the passage opening is influenced by the fine mesh of the screen.
  • a particularly preferred embodiment of the invention with regard to the utilization of the available passage area in the passage region provides that the passage openings are formed at least partially in the form of rows of alternately oriented triangular surfaces.
  • a particularly uniform distribution and a homogeneous inflow or flushing of the liquid volume flow into the filter arrangement is achieved according to a preferred embodiment of the invention in that there is a passage opening-free region between an inlet region for the liquid and the passage region.
  • a development of the invention which is particularly preferred in terms of design and handling provides in this regard for the inlet area for the liquid to be formed on one end side of the filter arrangement and for the preferred direction to extend from the front side of the receiving space to the front side.
  • FIG. 1 In addition to the filter assembly 1 only rudimentary other parts of a laundry treatment machine are shown, namely in particular a narrowing guide channel 2 for a liquid 3, the so-called.
  • the lint filter 6 is located in a non-illustrated flow channel 7 for so-called.
  • Process air 8 which in a conventional manner previously flows through a (not shown here) drying chamber and thereby removes moisture in the drying chamber befindaji laundry.
  • the lint filter 6 is provided between the drying chamber and a process air downstream (also not shown here) arranged heat sink.
  • Such a structure of a laundry treatment machine is basically eg from the Scriptures DE 10 2009 046 921 A1 known.
  • the filter assembly comprises a lower part, which is referred to as a housing shell or filter bowl 14, and an upper part, which is referred to as cover 15.
  • the filter assembly is fixedly installed in the bottom region 16 of the laundry treatment machine and can in particular be designed as a so-called. Life-time lint, as in the above-mentioned document DE 10 2010 039 603 A1 to which reference is made in this regard, described in detail.
  • the liquid 3 passes in the direction indicated by the arrow Ein Hughesraum 9 as Spülwasservolumenstrom 18 gushing into a deposition space or receiving space 20 of the filter assembly.
  • the receiving space 20 serves to accommodate the entrained impurities 4.
  • the purified and lint-free liquid 22 exits through a passage region 24 of the filter assembly again.
  • the passage region 24 is in this embodiment, in the bottom 25 of the receiving space 20, which is manufacturing technology and fluidic preferred.
  • the bottom 25 is provided with a filter device 26 in the form of a fleece or sieve; but it can also be provided only the respective passage area with a sieve or sieve.
  • one or more passage regions (e) may also be provided at other locations, for example in the lateral boundary walls of the receiving space 20.
  • this has a plurality of openings, of which in FIG. 1 only exemplified openings 28, 29, 30, 31 and 32 are shown. These openings are designed as so-called sieve segments, ie their opening cross-section is covered by a sieve. Of course, instead of, for example, each of the one sieve-covered opening 28, a multiplicity of smaller adjacent openings could achieve the same sieving effect of the sieve-covered opening 28 at this location.
  • the passage area 24 is in the direction of Ein Hughesraum 9 of the liquid 3 in the rear portion 33 of the receiving space 20 designed so that an increased outflow of the liquid 22 (only roughly symbolized by a plurality of arrows 22 at the openings 32, 31, 30th ) in this area.
  • the passage opening 32 located there is significantly further formed in its passage surface 34 (or in the case of circular through-openings in its diameter) than the left-adjacent passage opening 31, etc. (symbolized by the decreasing number of arrows of the liquid 22).
  • the passage openings 32, 31, 30, 29, 28 in the direction of the inlet area 10 decrease in their effective passage area or are arranged and dimensioned in such a way that the total passage area per unit area decreases. This can be done continuously or in stages or successively.
  • a throughput gradient 38 is formed, which is directed from the rear region 33 to the front region 39 or to the front side 11 of the receiving space 20.
  • the lint 4 deposits in a preferred direction 40, i. starting in the rear region 33 of the receiving space 20, that is from an inner wall 41 opposite the front side.
  • the screen surface area or the proportion of passage openings per unit area is initially only a very small proportion of the rinse water volume flow 18 the majority of the flushing water volume flow reaches into the rear area 33 and flows there.
  • the receiving space 20 is gradually filled further in the preferred direction 40, ie counter to the throughput gradient 38, successively.
  • the passage region 24 is formed stepwise or stepwise differently from a first region (initial region) 44 over further regions 45, 46, 47, 48 up to an end region 49.
  • the through-openings are preferably designed as triangles (eg 50, 51, 54, 55) configured in an alternating manner and oriented.
  • a passage opening-free region 60 adjoins the inlet region 10 (see also FIG. 1 ), which promotes a homogenization and a particularly easy flow through the liquid 3 (initially) into the rear region 33.
  • FIG. 4 finally shows the filter assembly 1 in an open view. It can be seen the lower part, so the filter bowl 14, and the upper part, so the cover 15 with the access opening or the inlet region 10.
  • the filter assembly may preferably act as a life-Flusendepot, so that the housing parts 14, 15 firmly connected in the assembled state could be.
  • the cover 15 may further inlet openings, not shown, for other liquids - for example, condensate, which precipitates on a heat exchanger from the process air flow - have. Basically, even in this inflow, the above-described design measures bring about a controlled flow of the liquid in the receiving space 20 and thus the previously described controlled and reproducible deposition of impurities possibly carried by the condensate or the second (rinse) liquid.
  • a targeted influencing, for example, of a rinse water volume flow in dependence on the degree of filling of the receiving space is realized. Due to the design, arrangement and dimensioning of the passage openings and optionally the screen or filter elements of Spülwasservolumenstrom is influenced so that this initially empty receiving space in a preferred starting area passes - in the embodiment, the rear portion 33 - and from there, starting gradually the receiving space and continue to fill. Thus, a filter arrangement is created, the entire space is largely available for receiving and possibly permanent landfill of lint and impurities available.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Filtering Materials (AREA)

Claims (6)

  1. Ensemble filtrant pour une machine de traitement de linge,
    - comprenant un dispositif filtrant (26) destiné à filtrer les impuretés (4) qu'un liquide (3) circulant dans la machine de traitement de linge transporte, et
    - comprenant un espace de logement (20) destiné au dépôt d'impuretés (4) filtrées, lequel espace de logement présente au moins une zone de passage (24) munie de plusieurs orifices de passage (28, 29, 30, 31, 32) pour le liquide (3),
    caractérisé en ce que
    les orifices de passage (28, 29, 30, 31, 32) situés dans la zone de passage (24) sont disposés et dimensionnés de manière à ce qu'il résulte un gradient de débit (38) pour le liquide sur la zone de passage (24), de sorte que le liquide (3) circulant traverse l'espace de logement (20) d'une façon prédéterminée de manière à ce que le remplissage de l'espace de logement (20) et le dépôt des impuretés (4) aient lieu dans une direction préférentielle (40), la surface totale des orifices de passage (28, 29, 30, 31, 32) par unité de surface diminuant, en partant d'une zone de départ (50) allant en direction d'une zone terminale (52).
  2. Ensemble filtrant selon la revendication 1,
    caractérisé en ce que
    - la zone de passage (24) se trouve au fond (25) de l'espace de logement (20).
  3. Ensemble filtrant selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que
    - les orifices de passage (28, 29, 30, 31, 32) sont réalisés comme segments filtrants.
  4. Ensemble filtrant selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que
    - les orifices de passage (28, 29, 30, 31, 32) sont réalisés au moins en partie sous forme d'une rangée de surfaces triangulaires (54, 55) orientées de manière alternante.
  5. Ensemble filtrant selon au moins l'une quelconque des revendications précédentes, caractérisé en ce qu'
    - une zone (60) exempte d'orifices de passage se trouve entre une zone (10) pour le liquide (3) et la zone de passage (24).
  6. Ensemble filtrant selon la revendication 5,
    caractérisé en ce que
    - la zone d'entrée (10) du liquide (3) est réalisée sur un côté frontal (11) de l'ensemble filtrant (1) et
    - en ce que la direction préférentielle (40) s'étend d'une paroi de l'espace de logement (20), située côté intérieur en face du côté frontal (11), en direction du côté frontal.
EP13783580.7A 2012-11-15 2013-10-29 Ensemble filtrant pour une machine de traitement du linge Active EP2920352B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13783580T PL2920352T3 (pl) 2012-11-15 2013-10-29 Zespół filtracyjny dla maszyny do obróbki pranej odzieży

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012220852.6A DE102012220852A1 (de) 2012-11-15 2012-11-15 Filteranordnung für eine Wäschebehandlungsmaschine
PCT/EP2013/072549 WO2014075909A1 (fr) 2012-11-15 2013-10-29 Système de filtration pour machine de traitement du linge

Publications (2)

Publication Number Publication Date
EP2920352A1 EP2920352A1 (fr) 2015-09-23
EP2920352B1 true EP2920352B1 (fr) 2016-12-14

Family

ID=49510165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13783580.7A Active EP2920352B1 (fr) 2012-11-15 2013-10-29 Ensemble filtrant pour une machine de traitement du linge

Country Status (5)

Country Link
EP (1) EP2920352B1 (fr)
CN (1) CN104812953B (fr)
DE (1) DE102012220852A1 (fr)
PL (1) PL2920352T3 (fr)
WO (1) WO2014075909A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014209736A1 (de) 2014-05-22 2015-11-26 BSH Hausgeräte GmbH Spülflüssigkeits-Filtervorrichtung für eine Wäschebehandlungsmaschine
DE102015216437A1 (de) * 2015-08-27 2017-03-02 BSH Hausgeräte GmbH Wäschetrocknungsgerät mit einem Türflusensieb-Sitz und Verfahren zu seiner Herstellung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4720925A (en) * 1986-12-22 1988-01-26 Whirlpool Corporation Lint filter housing for a dryer
DE8812477U1 (fr) * 1988-10-04 1988-11-17 Electrolux Waeschereimaschinen Gmbh, 7400 Tuebingen, De
US5560120A (en) * 1995-04-20 1996-10-01 Whirlpool Corporation Lint handling system
JP4793411B2 (ja) 2008-06-30 2011-10-12 パナソニック株式会社 洗濯機
JP4893717B2 (ja) * 2008-09-03 2012-03-07 パナソニック株式会社 洗濯機
JP2010063753A (ja) * 2008-09-12 2010-03-25 Toshiba Corp 洗濯機
DE102009046921A1 (de) 2009-11-20 2011-05-26 BSH Bosch und Siemens Hausgeräte GmbH Trockner mit einem Flusenfilter und einer Reinigungsvorrichtung
DE102010039602A1 (de) * 2010-08-20 2012-02-23 BSH Bosch und Siemens Hausgeräte GmbH Flusenfilter für ein Wäschebehandlungsgerät, Wäschebehandlungsgerät mit Aufnahmeraum für den Flusenfilter und Filtereinsatz
DE102010039603A1 (de) 2010-08-20 2012-02-23 BSH Bosch und Siemens Hausgeräte GmbH Wäschebehandlungsgerät mit Flusenfilter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN104812953B (zh) 2017-03-15
WO2014075909A1 (fr) 2014-05-22
DE102012220852A1 (de) 2014-05-15
EP2920352A1 (fr) 2015-09-23
PL2920352T3 (pl) 2017-06-30
CN104812953A (zh) 2015-07-29

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