EP2430969A1 - Lave-vaisselle - Google Patents

Lave-vaisselle Download PDF

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Publication number
EP2430969A1
EP2430969A1 EP11180883A EP11180883A EP2430969A1 EP 2430969 A1 EP2430969 A1 EP 2430969A1 EP 11180883 A EP11180883 A EP 11180883A EP 11180883 A EP11180883 A EP 11180883A EP 2430969 A1 EP2430969 A1 EP 2430969A1
Authority
EP
European Patent Office
Prior art keywords
plastic
sieve
dishwasher according
dishwasher
metal
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.)
Withdrawn
Application number
EP11180883A
Other languages
German (de)
English (en)
Inventor
Werner Haltmayer
Mathias Herrmann
Stefan Kasbauer
Claus KÖTHER
Martin Weissenburger
Mark Woldenberg
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 Bosch und Siemens 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 Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2430969A1 publication Critical patent/EP2430969A1/fr
Withdrawn legal-status Critical Current

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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
    • A47L15/4204—Flat filters

Definitions

  • the invention relates to a dishwasher, in particular a domestic dishwasher, with a hydraulic circuit for loading to be cleaned and / or to be dried items, wherein in the hydraulic circuit, a surface sieve is arranged, which has at least one formed by a metal sieve, in particular partially formed, screen surface is bounded at least partially at the edge by at least one functional section for liquid sealing.
  • Dishwashers have screen systems with which dirt particles can be filtered out of the hydraulic circuit of the dishwasher.
  • the sieve systems are usually multi-stage and usually consist of a surface fine sieve, a coarse sieve and optionally a micro sieve. According to their designation, dirt particles of different sizes can be filtered out of the wash liquor with these sieves.
  • the surface fine sieve has a sieve surface which is formed by a metal sieve part, such as a stainless steel perforated plate.
  • the perforated plate has, as a functional section on the outer peripheral side, a flanged frame which is in liquid-tight contact with the washing-machine base.
  • a plastic sieve can be used instead of the stainless steel perforated plate.
  • the material thickness of the webs extending between the sieve openings must be increased in comparison to the perforated metal sheet for process-reliable operation.
  • the flow cross-section is in Plastic sieve smaller than the flow cross-section of a comparable stainless steel perforated plate.
  • the object of the invention is to provide a dishwasher with a flat screen element, which is easy to produce with a large flow cross-section.
  • the surface sieve element according to the invention is formed as a component composite consisting of a functional part made as a plastic part and a metal sieve part.
  • a functional part made as a plastic part
  • a metal sieve part the advantages of both plastic and metal can be used to the effect that geometrically complex functional sections of the flat screen element are not formed of metal, but of plastic.
  • the sieve surface with the sieve holes is formed in the metal sieve part in order to increase the sieving properties of the flat sieve element.
  • the functional section of the flat screen element may in particular be an outer plastic frame which framing the metal screen section.
  • elaborate Blechumformvor saucker can be omitted to form a circumferential Ronde in Metallallsiebteil, as is customary in metal-fabricateduitenensiebelementen. Accordingly, it is thus possible to dispense with previously required deep-drawing oils and subsequent cleaning or washing processes, which leads to a further simplification of the production process.
  • Ronde in completely made of metal surface sieve elements of the peripheral plastic frame of the surface sieve element may expediently have at least one sealing profile with which the plastic frame is liquid-tight in contact with the rinsing container bottom.
  • the sealing profile may in particular be formed as a labyrinth-sealing structure in the plastic frame.
  • an additional sealing element such as a sealing ring made of a thermoplastic elastomer, be integrated in the plastic frame to produce a sufficient fluid seal.
  • the Metallsiebteil essentially assumes only a screening function, while other support, support and / or sealing functions are to be fulfilled by the plastic frame or other functional sections of the flat screen element. Accordingly, the Metallsiebteil be designed with reduced dimensional stability, without affecting the functionality of the flat screen element as a whole.
  • the metal sieve part can be an arbitrarily designed metal grid or a perforated metal sheet.
  • the metal sieve part can in particular have a mounting opening into which a hollow cylindrical rough cylinder can be inserted.
  • the opening edge of this mounting hole may be suitably limited by an annular collar.
  • This may be a plastic part, which is connected to the Metallsiebteil as another functional portion in the context of the invention.
  • an inner plastic frame may also be provided as a functional section of the flat screen element.
  • the surface sieve element can additionally or alternatively have a plastic plate in particular to the plastic frame. This can preferably connect laterally to the metal sieve.
  • the plastic plate may have mounting holes for supporting components, such as a pipe leading to the spray arms, and / or attachment holes for attachment to the bottom of the tank.
  • the plastic plate is also advantageously formed as a component composite with a Metallsiebteil and / or the plastic frame.
  • the metal mesh part surrounded by the plastic frame may preferably have a funnel-shaped free-form surface.
  • at least one further metal sieve part can be integrally formed laterally on the plastic frame.
  • the further metal sieve part may expediently possibly be integrated as an insert in the abovementioned plastic plate. This can be formed in particular as a pump pot cover on a frame strip of the plastic frame.
  • the bond between the Metallallsiebteil and the functional portion, such as the plastic frame, in an expedient embodiment can optionally be prepared by a riveted joint.
  • the metal sieve part expediently have at least one mounting opening through which a connecting element of the plastic frame made of plastic is guided.
  • the free end of the guided through the attachment opening connecting element can be heated in particular during a thermal rivet connection method and expanded to a securing head, whereby a secure support in the mounting hole is achieved.
  • the surface sieve element may in particular be a plastic injection molded part, in which the metal sieve part is encapsulated by the plastic material of the functional section.
  • the metal mesh part is inserted in this case as an insert in a plastic injection molding chamber of a molding tool.
  • the Metallallsiebteil for molding the solicitniebeiebides is encapsulated by plastic material.
  • an adhesive bond between the Metallsiebteil and the plastic frame is feasible.
  • FIG. 1 is shown in a partial view from above a washing container bottom 1 of a dishwasher.
  • the Speller employeder-bottom 1 is known to be in a in the Fig. 2 only roughly indicated sump 2 over. This is covered by a surface sieve element 3, which is aligned approximately flush with the washing container bottom 1.
  • the flat screen element 3 forms together with a in the Fig. 2 only indicated by dashed lines coarse filter 5 a screen system with which the rinsed during the rinsing operation of the dishwasher rinse liquid is cleaned of dirt particles.
  • the surface sieve element 3 is according to the Fig. 1 and 2 manufactured as a composite component, which has as a functional portion in the present embodiment, an outer plastic frame 7 and an inner plastic ring collar 9. In a passage opening 10 of the annular collar 9 of the hollow cylindrical coarse filter 5 is used. Between the outer plastic frame 7 and the inner ring collar 9, a sheet metal part 11 is stretched.
  • the metal mesh part 11 is an example of a stainless steel perforated plate with a plurality of screen openings.
  • the provided by the perforated plate screen surface is designed as a funnel-shaped free-form surface which tapers in the direction of the approximately centrally arranged annular collar 9 funnel-shaped downwards.
  • the annular collar 9 has a gradation, at the annular shoulder 13, an upper part of the coarse filter 5 is supported.
  • an additional sealing element 15 is integrated on a bottom side of the plastic frame 7, which is exemplified as a thermoplastic elastomer with appropriate softness.
  • the plastic frame 7 of the flat screen element 3 is liquid-tight in one by means of the sealing element 15 stepped opening edge 17 of the Spül matterser-bottom 1 used, which merges into the sump 2.
  • a further variant of the surface sieve element 3 is shown in a side sectional view.
  • the Fig. 3 is formed instead of the additional sealing element 15 on the bottom side of the plastic frame 7, a downwardly open, groove-shaped sealing profile, which is pressed with its two groove walls 19 against the opening edge region 17 of the washing tub bottom 1.
  • the metal mesh member 11 is according to Fig. 3 integrated with its outer edge in the plastic material of the plastic frame 7.
  • Such a composite can be done by way of example in the plastic injection molding process, in which the metal mesh part 11 is encapsulated by the plastic material of the plastic frame 7.
  • the annular collar 9 of the flat screen element 3 can be connected to the metal mesh part 11.
  • FIGS. 4 to 6 are illustrated process steps in which the outer plastic frame 7 is connected via a thermo-rivet connection with the Metallsiebteil 11.
  • the metal mesh part 11 is first produced as a blank, which has a circumferential edge region 19 which delimits the sieve surface of the metal sieve part 11 provided with the sieve openings.
  • fastening openings 21 are provided, which extend along the edge region 19 around the sieve surface of the metal sieve part 11.
  • the one with in the Fig. 4 shown metal mesh 11 to be connected plastic frame 7 is in side cross-sectional view in the Fig. 5 shown. Accordingly, the plastic frame 7 on its bottom side downwardly projecting connecting elements 23, of which in the Fig. 5 only one is shown. Its position corresponds to the respective attachment openings 21 of the metal mesh part 11, so that when connecting the plastic frame 7 to the metal mesh part 11, a connecting element 23 of the plastic frame 7 is guided through each of the attachment openings 21.
  • the plastic frame 7 also has an outer annular ridge 25, which according to the Fig. 5 the metal mesh part 11 projects downwards and can be brought into liquid-tight contact with the washing-up container bottom 1.
  • the surface sieve 3 is shown according to a second embodiment.
  • the flat screen 3 is also formed with an outer plastic frame 7 and an inner plastic ring collar 9, which are connected to each other via a metal mesh member 11 arranged therebetween.
  • a plastic plate 29 is formed in the present embodiment of the plastic frame 7 as a functional section.
  • the plastic plate 29 can serve as a pump pot cover on the one hand.
  • Mounting holes 30 provided in the plastic plate 29, can be supported in the pipes, not shown here, leading to the respective spray arms in the washing compartment of the dishwasher.
  • mounting holes 31 are provided in the plastic plate 29 to screw the plate 29 to the underlying pump pot.
  • the plastic plate 29 formed on the plastic frame 7 is not made entirely of plastic material but has a second and third metal mesh part 33, 35.
  • the sieve surface provided by the surface sieve element 3 is therefore formed not only by the first metal sieve part 11, but additionally also by the two metal sieve parts 33, 35 integrated in the plastic plate 29.
  • the two metal mesh parts 33, 35 can be connected to the plastic plate 29 in the same way as the first metal mesh part 11.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Washing And Drying Of Tableware (AREA)
EP11180883A 2010-09-21 2011-09-12 Lave-vaisselle Withdrawn EP2430969A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010041158.2A DE102010041158B4 (de) 2010-09-21 2010-09-21 Geschirrspülmaschine

Publications (1)

Publication Number Publication Date
EP2430969A1 true EP2430969A1 (fr) 2012-03-21

Family

ID=44582641

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11180883A Withdrawn EP2430969A1 (fr) 2010-09-21 2011-09-12 Lave-vaisselle

Country Status (2)

Country Link
EP (1) EP2430969A1 (fr)
DE (1) DE102010041158B4 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9451864B2 (en) 2011-04-29 2016-09-27 Electrolux Home Products Corporation N.V. Filter
CN107928592A (zh) * 2017-12-13 2018-04-20 佛山市顺德区美的洗涤电器制造有限公司 水箱组件及洗涤电器
CN111588325A (zh) * 2020-04-13 2020-08-28 青岛海尔洗碗机有限公司 一种洗碗机平面过滤网及洗碗机

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3502090A (en) * 1967-12-14 1970-03-24 Hobart Corp Dishwashing apparatus
DE19841354A1 (de) * 1998-09-10 2000-03-16 Aeg Hausgeraete Gmbh Filtersieb für ein flüssigkeitführendes Haushaltsgerät
EP1340448A2 (fr) * 2002-02-28 2003-09-03 Whirlpool Corporation Filtre plat pour un appareil conducteur d'eau, notamment un lave-vaisselle
EP1424034A1 (fr) * 2002-11-28 2004-06-02 Whirlpool Corporation Lave-vaisselle comportant un filtre plat ayant des zones avec des trous de différents diamètres
US20080283094A1 (en) * 2007-05-15 2008-11-20 Electrolux Home Products, Inc. Screening arrangement for a dishwasher, and associated apparatus and method
US20100037923A1 (en) * 2008-08-14 2010-02-18 Whirlpool Corporation Removable dishwasher filtration system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3502090A (en) * 1967-12-14 1970-03-24 Hobart Corp Dishwashing apparatus
DE19841354A1 (de) * 1998-09-10 2000-03-16 Aeg Hausgeraete Gmbh Filtersieb für ein flüssigkeitführendes Haushaltsgerät
EP1340448A2 (fr) * 2002-02-28 2003-09-03 Whirlpool Corporation Filtre plat pour un appareil conducteur d'eau, notamment un lave-vaisselle
EP1424034A1 (fr) * 2002-11-28 2004-06-02 Whirlpool Corporation Lave-vaisselle comportant un filtre plat ayant des zones avec des trous de différents diamètres
US20080283094A1 (en) * 2007-05-15 2008-11-20 Electrolux Home Products, Inc. Screening arrangement for a dishwasher, and associated apparatus and method
US20100037923A1 (en) * 2008-08-14 2010-02-18 Whirlpool Corporation Removable dishwasher filtration system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9451864B2 (en) 2011-04-29 2016-09-27 Electrolux Home Products Corporation N.V. Filter
CN107928592A (zh) * 2017-12-13 2018-04-20 佛山市顺德区美的洗涤电器制造有限公司 水箱组件及洗涤电器
CN107928592B (zh) * 2017-12-13 2021-04-20 佛山市顺德区美的洗涤电器制造有限公司 水箱组件及洗涤电器
CN111588325A (zh) * 2020-04-13 2020-08-28 青岛海尔洗碗机有限公司 一种洗碗机平面过滤网及洗碗机

Also Published As

Publication number Publication date
DE102010041158B4 (de) 2023-07-06
DE102010041158A1 (de) 2012-03-22

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