EP2759245B1 - Lave-vaisselle avec bac collecteur - Google Patents

Lave-vaisselle avec bac collecteur Download PDF

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Publication number
EP2759245B1
EP2759245B1 EP13401138.6A EP13401138A EP2759245B1 EP 2759245 B1 EP2759245 B1 EP 2759245B1 EP 13401138 A EP13401138 A EP 13401138A EP 2759245 B1 EP2759245 B1 EP 2759245B1
Authority
EP
European Patent Office
Prior art keywords
collecting vessel
region
circulating
area
dirt
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
EP13401138.6A
Other languages
German (de)
English (en)
Other versions
EP2759245A1 (fr
Inventor
Andreas Hilger
Thomas Lochner
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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 Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP2759245A1 publication Critical patent/EP2759245A1/fr
Application granted granted Critical
Publication of EP2759245B1 publication Critical patent/EP2759245B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4202—Water filter means or strainers
    • A47L15/4206—Tubular filters
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4225—Arrangements or adaption of recirculation or discharge pumps
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4246—Details of the tub

Definitions

  • the invention relates to a dishwasher with a collecting pot according to the preamble of claim 1.
  • Dishwashers especially dishwashers for the household, must be equipped in their rinse water circuit for pumping and for pumping out the rinsing liquid with a well-functioning filter combination in the collecting pot of the washing.
  • Dishwashers are described with such sieve combinations.
  • Such sieve combinations typically comprise a flat screen covering the collecting pot and a micro sieve as well as a coarse sieve.
  • Also from the EP 2 087 830 A1 is such a dishwasher known.
  • particle deposits in the collecting pot can often occur.
  • Sand grains and fine-grained particles in particular remain behind in the collecting pot after pumping. Through the fine sieve, such particles can reach the recirculation area of the collecting pot.
  • the geometry of the collection pot in conjunction with the geometry of the screen combination employed to a great extent prevents sand and other fine-grained particles having a grain size exceeding the aperture size of the microscreen during e.g. 0.3 to 1.5 mm into the suction area of the drain pump.
  • clumps of this expansion can form in the circulation area of the collecting pot.
  • the components involved in the circulation cycle such as pump impeller, water switch, spray arms, etc., can be damaged or blockages can be caused as a result.
  • the invention thus provides the problem of creating a dishwasher with a collecting pot of the type mentioned, in which also fine-grained dirt particles from the dishwasher with reasonable certainty from the dishwasher can be promoted.
  • the dishwasher according to the invention has a collection pot arranged below the washing container, with which flushing liquid originating from the washing container is collected.
  • the rinsing liquid passes from the collecting pot to the circulating pump, which in turn conveys it via spraying devices into the washing compartment.
  • the dishwasher also has a sieve element inserted into the collection pot.
  • the screen element which is typically referred to as a microsieve, is disposed between a recirculation area and a debris collection area of the collection pot, i. the microsieve separates a first region of the collecting pot, which can be assigned to the circulation of the rinsing liquid, from a second region of the collecting pot, which can be assigned to the pumping out of the rinsing liquid.
  • the collecting pot In the first area, i. Umicalz Scheme, the collecting pot is arranged a circulating pump nozzle, which produces a direct fluidic connection from the collecting pot to the circulation pump.
  • the collecting pot In the second area, i. Dirt collecting area, the collecting pot is arranged a drain pump nozzle, which communicates with a drain pump for pumping out the rinsing liquid after completion of a rinsing process.
  • the sieve element can be designed in a manner known per se, for example, cylindrical or preferably cone-shaped, wherein it largely surrounds the dirt collecting area. Radial around the sieve around the Ummélz Scheme is arranged.
  • the collection pot comprises a bottom part, which represents the support area for the inserted sieve element, ie the microsieve, and which is thus arranged below the sieve element.
  • the bottom part preferably has a substantially annular bearing surface for the sieve element.
  • the bottom part is inventively formed with guide channels, which are aligned such that for pumping certain rinsing liquid is passed to the drain pump nozzle.
  • the guide channels thereby represent a connection from the circulation area to the dirt collecting area of the collecting pot. Rinsing liquid and fine-grained particles contained therein can thus pass from the circulation area through the guide channels to the discharge nozzle, in particular bypassing or avoiding the sieve element, ie microsieve.
  • the guide channels thus constitute an alternative flow path, ie a type of bypass for the flow of the rinsing liquid from the circulation area of the collecting pot to the dirt collecting area.
  • the rinsing liquid can reach below the plane of the support surface of the bottom part and thus below the sieve element in the dirt collecting area.
  • Fine-grained particles which on the one hand are small enough to enter the circulation area of the collecting pot or which have formed in the circulation area of the collecting pot by agglomerations, and which on the other hand are too large to pass through the sieve, i.
  • the microsieve to get into the dirt collecting area, can thus be conveyed out and pumped out of the recirculation area by the guide channels.
  • the guide channels are arranged in an azimuthal region of the bottom part, which is located in the vicinity of the circulating pump nozzle, through which the rinsing liquid is passed to the circulation pump.
  • the guide channels are preferably dimensioned such that dirt particles with an extent in at least one direction of less than 1.5 mm or with a grain size of less than 1.5 mm can be passed to the drain pump nozzle. This ensures that all or almost all dirt particles, which in particular pass through an area sieve, which typically closes the circulation area of the collection pot to the rinsing container, have entered the circulation area, can be conveyed out of the circulation area by the guide channels. Likewise, particles that have only clumped together in the recirculation area can be removed.
  • the bottom part has for this purpose recesses and rib-shaped webs; These form the guide channels, which lead from the circulation area to the dirt collecting area of the collecting pot.
  • the recesses preferably have a width of 1 to 2 mm, typically 1.5 mm.
  • 3 to 20 guide channels are present so that on the one hand an effective discharge of the dirt particles is achieved and on the other hand, the filter effect of the screen element is not affected.
  • the rib-shaped webs on the dirt collecting area side facing inlet wedges which allow the operation of the circulating pump clogging of the guide channels by coarse dirt particles.
  • the guide channels are thus widened in a funnel shape on the side facing the dirt collecting area.
  • the guide channels rapidly and stably become coarse dirt, so that essentially no further flushing liquid is emitted the dirt collecting area in the circulation area can pass through the guide channels, so that contamination of the circulation pump cycle is effectively prevented.
  • the coarse dirt in the inlet wedges is rinsed out of the inlet wedges in a subsequent pumping process.
  • the guide channels are arranged and the depth of the recesses in the bottom part of the collecting pot chosen so that rinsing liquid from the lowest point in the circulation of the collecting pot in the dirt collection area, or preferably can flow to the drain pump neck.
  • the rinsing liquid can preferably, according to gravity, pass from the lowest point in the circulation area of the collecting pot through the guide channels into the dirt collecting area and preferably further up to the pumping outlet. In this way, a reduced alkali carryover can be effected.
  • FIG. 1 the sieve system and the collecting pot 1 with the nozzles 3 and 6 are shown in detail for the circulating pump 4 and for the drainage pump 7 of a dishwasher in today's common construction.
  • the collection pot 1 for receiving the rinsing liquid is arranged below the Spül electer convinceds 2.
  • a sieve combination is integrated, which consists of a fine sieve 9, a coarse sieve 10 and a micro sieve 11.
  • the collecting pot 1 is connected via the circulating pump nozzle 3 with a circulating pump 4 for flooding the rinsing liquid during the rinsing process.
  • a circulating pump 4 for flooding the rinsing liquid during the rinsing process.
  • the rinsing liquid is supplied to the spray arms in the washing container, which then flows back into the collecting pot 1 via the sieve combination.
  • the frame-like arrows illustrate the rinsing liquid flow through the collecting pot 1 during the rinsing operation.
  • the rinsing liquid can be conveyed in the direction indicated by the arrow 8 drain after completion of the rinsing process.
  • the Fig. 2 shows in detail the interior of a collection pot 1 designed according to the invention in a perspective view and without a screen combination.
  • the opening 12 represents the transition to the circulation pump nozzle and thus the connection to the circulation pump 4.
  • the opening 13 provides the transition to the drain pump nozzle and thus the connection to the drain pump 7 ago.
  • the bottom part 14 in the collecting pot 1 forms the contact area for the sieve element of the filter system (microsieve), which is not shown in the collecting pot 1, whereby the dirty water is separated from the filtered rinsing water.
  • Fig. 4 shows in a further perspective view of the interior of an inventively designed collecting pot 1, but here with inserted sieve 11 (microsieve) and coarse sieve 10, but without fine sieve. 9
  • the collar formed in the bottom part 14 is - as in Fig. 2 and Fig. 4 shown - formed with a plurality of guide channels 15 which are aligned such that the rinsing liquid can flow to the opening 13 and thus to the drain pump neck.
  • These guide channels 15 are dimensioned such that dirt particles with a particle size of up to 1.5 mm can be passed into the pumping process.
  • the guide channels 15 are formed by recesses and rib-shaped webs in the region of acting as a screen pad bottom portion 14 of the collecting pot 1. They are arranged in an azimuthal region of the bottom part 14, which is located immediately in front of the opening 12 to the circulating pump nozzle 3.
  • the rib-shaped webs are formed on the side facing the dirty side with inlet wedges 16 or chamfers. This configuration thus results in this area a funnel-shaped widening of the guide channels 15 as it Fig. 3 illustrated.
  • these inlet wedges 16 allow clogging of the guide channels 15 by coarse dirt particles, so that no further rinsing liquid can pass from the dirt collecting area 18 into the circulation area 17 through the guide channels 15.
  • the depth of the recesses in the bottom part 14 of the collecting pot 1 is to be chosen so that the discharge water from the lowest point of the collecting pot 1 can flow to the drain pump 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Washing And Drying Of Tableware (AREA)

Claims (5)

  1. Lave-vaisselle avec un bac collecteur (1) disposé au-dessous d'une cuve de lavage et destiné à recevoir un liquide de lavage, et avec un élément de tamisage (11) introduit dans le bac collecteur (1) et qui est disposé entre une zone de circulation (17) et une zone de collecte de saletés (18) du bac collecteur (1), dans lequel le bac collecteur (1) est en liaison, par le biais d'une tubulure de pompe de circulation (3) disposée dans la zone de circulation (17), avec une pompe de circulation (4) pour la circulation du liquide de lavage pendant un processus de lavage et, par le biais d'une tubulure de pompe de vidange (6) disposée dans la zone de collecte de saletés (18), en liaison avec une pompe de vidange (7) pour l'évacuation par pompage du liquide de lavage à la fin d'un processus de lavage, le bac collecteur (1) présentant une partie de fond (14) qui constitue la zone d'appui pour l'élément de tamisage (11) introduit,
    caractérisé en ce que
    la partie de fond (14) est constituée avec des conduits de guidage (15) qui sont formés par des creux et des ailettes en forme de nervure dans la partie de fond (14) du bac collecteur (1) qui conduisent à partir de la zone de circulation (17) vers la zone de collecte de saletés (18) du bac collecteur (1) et qui sont orientés de telle sorte que du liquide de lavage destiné à être évacué par pompage est conduit à la tubulure de pompe de vidange (6).
  2. Lave-vaisselle selon la revendication 1,
    caractérisé en ce que
    les conduits de guidage (15) sont disposés dans une zone de la partie de fond (14) qui se trouve à proximité de la tubulure de pompe de circulation (3) à travers laquelle le liquide de lavage est conduit à la pompe de circulation (4).
  3. Lave-vaisselle selon la revendication 1 ou 2,
    caractérisé en ce que
    les conduits de guidage (15) sont dimensionnés de telle sorte que des particules de saletés avec une étendue dans au moins une direction ou avec une taille de grains inférieure à 1,5 mm peuvent être conduites à la tubulure de pompe de vidange (6).
  4. Lave-vaisselle selon l'une des revendications précédentes,
    caractérisé en ce que
    les ailettes en forme de nervure sont, sur le côté tourné vers la zone de collecte de saletés (18), constituées avec des coins d'entrée (16) qui, lors du fonctionnement de la pompe de circulation (4), permettent une obstruction des conduits de guidage (15) par des particules de saletés.
  5. Lave-vaisselle selon l'une des revendications précédentes,
    caractérisé en ce que
    la profondeur des creux dans la partie de fond (14) du bac collecteur (1) est choisie de telle sorte que du liquide de lavage s'écoule à partir du point le plus bas dans la zone de circulation (17) du bac collecteur (1) vers la tubulure de pompe de vidange (6).
EP13401138.6A 2013-01-23 2013-12-17 Lave-vaisselle avec bac collecteur Active EP2759245B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201310100659 DE102013100659A1 (de) 2013-01-23 2013-01-23 Spülmaschine mit einem Sammeltopf

Publications (2)

Publication Number Publication Date
EP2759245A1 EP2759245A1 (fr) 2014-07-30
EP2759245B1 true EP2759245B1 (fr) 2016-08-24

Family

ID=49917544

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13401138.6A Active EP2759245B1 (fr) 2013-01-23 2013-12-17 Lave-vaisselle avec bac collecteur

Country Status (2)

Country Link
EP (1) EP2759245B1 (fr)
DE (1) DE102013100659A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3366186B1 (fr) * 2017-02-27 2022-03-02 Electrolux Professional S.p.A. Lave-vaisselle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3114663C2 (de) * 1981-04-10 1992-11-26 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Siebanordnung in der Ablaufwanne des Spülbehälters einer Geschirrspülmaschine
SE468269B (sv) * 1989-01-11 1992-12-07 Electrolux Ab Diskmaskin med finsil och mikrofilter anordnade i en uppsamlingsbehaallare
DE3931031C2 (de) 1989-09-16 1997-05-22 Miele & Cie Sammeltopf einer Geschirrspülmaschine mit einer Siebkombination
EP2087830B1 (fr) * 2008-02-08 2010-01-06 Bonferraro S.p.A. Ensemble filtrant pour lave-vaisselle industriel
DE102009027910A1 (de) * 2009-07-22 2011-01-27 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit einem optimierten Siebsystem

Also Published As

Publication number Publication date
DE102013100659A1 (de) 2014-07-24
EP2759245A1 (fr) 2014-07-30

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