EP3987997B1 - Geschirrspülmaschine mit einem sieb - Google Patents

Geschirrspülmaschine mit einem sieb Download PDF

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Publication number
EP3987997B1
EP3987997B1 EP21199965.1A EP21199965A EP3987997B1 EP 3987997 B1 EP3987997 B1 EP 3987997B1 EP 21199965 A EP21199965 A EP 21199965A EP 3987997 B1 EP3987997 B1 EP 3987997B1
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EP
European Patent Office
Prior art keywords
water
dishwasher
group
delivery line
guiding valve
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
EP21199965.1A
Other languages
English (en)
French (fr)
Other versions
EP3987997A1 (de
Inventor
Ugur Kan
Orhan Atabey
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.)
Arcelik AS
Original Assignee
Arcelik AS
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Filing date
Publication date
Application filed by Arcelik AS filed Critical Arcelik AS
Publication of EP3987997A1 publication Critical patent/EP3987997A1/de
Application granted granted Critical
Publication of EP3987997B1 publication Critical patent/EP3987997B1/de
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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
    • 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
    • A47L15/4219—Water recirculation
    • A47L15/4221—Arrangements for redirection of washing water, e.g. water diverters to selectively supply the spray arms
    • 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

Definitions

  • the present invention relates to a dishwasher comprising a strainer.
  • dirty kitchen items are placed onto the racks.
  • the water is delivered onto the dirty kitchen items placed onto the racks by means of the spraying members.
  • the water is delivered to the spraying members by means of the circulation pump.
  • a mechanical water guiding valve is used to guide the water to different spraying members at different times.
  • the dirt particles removed from the kitchen items with the pressure of the sprayed water sometimes scatter in the washing tub without being dissolved and leave the tub with the guidance of the water.
  • the dirt particles leaving the tub are retained by means of the strainer, microfilter and the coarse filter structures provided on the base of the tub. Thus, the dirt particles are prevented from entering the water line and clogging the water line.
  • the dirt particles retained by the strainer, the microfilter and the coarse filter structures accumulate there in the course of time, preventing a clean washing of the dishes. Therefore, the strainer, the microfilter and the coarse filter structures are removed from the washing tub and cleaned by the user at certain intervals. The same components are replaced after the washing process and the washing programs are run. However, when the strainer, the microfilter and the coarse filter structures are not properly mounted or are damaged, the filtering process cannot be efficiently realized. This causes the spraying members, the circulation pump and the mechanical valves to get clogged.
  • US 2011 056 527 A1 discloses a dishwasher with a filter system and a switch-over element comprisng a supplementary filter.
  • DE 10 2011 002989 A1 discloses a dishwasher with a filter system in a sump comprising a strainer, a coarse filter and a microfilter.
  • the problem to be solved by the present invention is to provide a robust drive system for the water guiding valve.
  • the dishwasher comprises an additional straining member which is provided between the filter group and the circulation pump.
  • the additional straining member By means of the additional straining member, the dirt particles passing through the filter group are retained before entering the circulation pump.
  • the dishwasher comprises a delivery live having a first delivery line which delivers the water leaving the circulation pump to the mechanical water guiding valve and a second delivery line which delivers the same to the spraying member.
  • the water delivered to the first delivery line operates the mechanical water guiding valve so as to enable the operation of the shutter group.
  • the water delivered to the second delivery line is delivered to the spraying member in connection with the shutter group in operation.
  • the dishwasher comprises a plurality of openings which are provided on the straining member; and the first delivery line which has the same cross-sectional area as the total of the areas of the openings. The water flowing through the first delivery line moves through the straining area without any decrease in the cross-sectional area.
  • the dishwasher comprises a connection line which enables the water coming from the first delivery line to return to the sump after passing through the mechanical water guiding valve.
  • the water operating the mechanical water guiding valve is delivered to the sump to be reused.
  • the dishwasher comprises the straining member which has a permeability level at least equal to that of the microfilter.
  • the particles which cannot be retained by the filter group are retained by the straining member and prevented from being delivered to the mechanical water guiding valve.
  • the dishwasher is illustrated in the attached figures, where:
  • the dishwasher (1) comprises a body (2); a washing tub (3) which is provided in the body (2) and wherein the washing process is performed; a sump (18) which is provided on the base of the washing tub (3) and wherein water is collected; a filter group (7) provided in the sump (18) and having a main strainer (4) which strains the dirt particles breaking off from the kitchen items placed into the washing tub (3) and a microfilter (5) and a coarse filter (6) which are positioned under the main strainer (4); a plurality of spraying members (8) which provide the delivery of water to the kitchen items in the washing tub (3); a circulation pump (9) which enables the water to be guided to the spraying members (8); and a mechanical water guiding valve (10) which enables the water to be guided to the desired spraying members (8) in order.
  • the dirt particles removed from the kitchen items are retained by the filter group (7).
  • the water in the washing tub (3) is collected in the sump (18).
  • the water cleansed of dirt particles by passing through the filter group (7) is delivered back to the spraying members (8) by means of the circulation pump (9).
  • the mechanical water guiding valve (10) is used to guide the water to the desired spraying member (8).
  • the dishwasher (1) of the present invention comprises a straining member (11) which is provided between the circulation pump (9) and the mechanical water guiding valve (10) and which retains the particles passing through the filter group (7).
  • the straining member (11) By means of the straining member (11), the dirt particles which cannot be retained by the filter group (7) are enabled to be retained.
  • the circulation pump (9), the mechanical water guiding valve (10) and the spraying members (8) are prevented from getting clogged. Consequently, the washing efficiency is improved.
  • the dishwasher (1) comprises an additional straining member (17) which is provided between the filter group (7) and the circulation pump (9).
  • the additional straining member (17) retains the dirt particles passing through the filter group (7) before entering the circulation pump (9). Thus, possible malfunctions in the circulation pump (9) are prevented.
  • the dishwasher (1) of the present invention comprises the mechanical water guiding valve (10) having at least one wheel group (12), at least one gear group (13) connected to the wheel group (12) and at least one shutter group (14) delivering the water to the correct spraying member (8); and the straining member (11) which strains the water before reaching the wheel group (12).
  • the straining member (11) is positioned in front of the wheel group (12). Thus, the dirt particles are prevented from blocking the movement of the wheel group (12). The dirt particles are removed from the mechanical water guiding valve (10).
  • the dishwasher (1) comprises a delivery line (15) having a first delivery line (19) which delivers the water leaving the circulation pump (9) to the mechanical water guiding valve (10) and a second delivery line (20) which delivers the same to the spraying members (8).
  • the water leaving the circulation pump (9) flows through the delivery line (15).
  • the water delivered to the second delivery line (20) flows towards the spraying member (8) which is open depending on the position of the shutter group (14), thus performing the washing process.
  • the amount of water delivered to the second delivery lien (20) is more than the amount of water delivered to the first delivery line (19).
  • the dishwasher (1) comprises a plurality of openings (16) which are provided on the straining member (11); and the first delivery line (19) which has almost the same cross-sectional area as the total of the areas of the openings (16).
  • the total of the areas of the openings (16) provided on the straining member (11) is equal to the cross-sectional area of the first delivery line (19) or larger than the cross-sectional area of the first delivery line (19).
  • the amount of water flowing through the first delivery line (19) does not change while passing through the straining member (11).
  • the operation of the mechanical water guiding valve (10) is ensured without any change in water pressure.
  • the dishwasher (1) comprises a connection line (21) which enables the water to be delivered to the sump (18) after operating the mechanical water guiding valve (10) via the first delivery line (19).
  • the water flowing through the first delivery line (19) which operates the mechanical water guiding valve (10) is delivered to the sump (18) to be reused via the connection line (21).
  • the dishwasher (1) comprises the straining member (11) which has a permeability level for solid particles at most equal to the permeability level of the microfilter (5).
  • the permeability level of the straining member (11) is at least equal to the permeability of the microfilter (5).
  • the microfilter (5) allows the passage of particles with a size of 0.3 x 0.3 at the most. Thus, small dirt particles are prevented from being delivered to the mechanical water guiding valve (10).
  • a dishwasher (1) comprising a straining member (11) which is disposed between the filter group (7), the circulation pump (9) and/or the mechanical water guiding valve (10).
  • the dirt particles which cannot be retained by the microfilter (5) and the coarse filter (6), are prevented from being delivered to the mechanical water guiding valve (10) and the spraying members (8).

Landscapes

  • Washing And Drying Of Tableware (AREA)

Claims (6)

  1. Eine Geschirrspülmaschine (1) umfasst einen Körper (2); eine Waschwanne (3), die im Körper (2) vorgesehen ist und in der der Waschvorgang durchgeführt wird; einen Auffangbehälter (18), der am Boden der Waschwanne (3) vorgesehen ist und in dem Wasser gesammelt wird; eine Filtergruppe (7), die im Sumpf (18) vorgesehen ist und ein Hauptsieb (4) aufweist, das so konfiguriert ist, dass es Schmutzpartikel herausfiltert, die von den in der Waschwanne (3) gegebenen Küchenutensilien abfallen, und einen Grobfilter (6), der unter dem Hauptsieb (4) positioniert ist; eine Vielzahl von Sprühelementen (8), die für die Abgabe von Wasser an die Küchengegenstände in der Waschwanne (3) sorgen; eine Umwälzpumpe (9), die es ermöglicht, Wasser zu den Sprühelementen (8) zu leiten; und ein mechanisches Wasserführungsventil (10), das es ermöglicht, Wasser zu den gewünschten Sprühelementen (8) zu leiten, ein Siebelement (11), das zwischen der Umwälzpumpe (9) und dem mechanischen Wasserführungsventil (10) vorgesehen ist und so konfiguriert ist, dass sie Partikel zurückhält, die durch die Filtergruppe (7) gelangen, wobei das mechanische Wasserführungsventil (10) mindestens eine Radgruppe (12) umfasst, wobei mindestens eine Zahnradgruppe (13) mit der Radgruppe (12) verbunden ist; weiterhin umfasst sie mindestens eine Verschlussgruppe (14), die so konfiguriert ist, dass sie Wasser an das richtige Sprühelement (8) abgibt; und das Siebelement (11), das so konfiguriert ist, dass es Wasser filtert, bevor es die Radgruppe (12) erreicht, gekennzeichnet ist es dadurch, dass die Filtergruppe (7) außerdem einen unter dem Hauptsieb (4) positionierten Mikrofilter (5) umfasst, wobei die Radgruppe (12) so konfiguriert ist, dass sie die Bewegung des Wassers in eine kreisförmige Bewegung umwandelt, die auf die Zahnradgruppe (13) übertragen wird.
  2. Eine Geschirrspülmaschine (1), wie in Anspruch 1 aufgeführt, ist dadurch gekennzeichnet, dass ein zusätzliches Sieborgan (17) zwischen der Filtergruppe (7) und der Umwälzpumpe (9) vorgesehen ist.
  3. Eine Geschirrspülmaschine (1), wie in einem der vorherigen Ansprüchen aufgeführt, ist dadurch gekennzeichnet, dass eine Förderleitung (15) eine erste Förderleitung (19) aufweist, die so konfiguriert ist, dass sie Wasser, das die Umwälzpumpe (9) verlässt, dem mechanischen Wasserführungsventil (10) zuführt und eine zweite Zufuhrleitung (20), die so konfiguriert ist, dass sie den Sprühelementen (8) Wasser zuführt.
  4. Eine Geschirrspülmaschine (1), wie in Anspruch 3 aufgeführt, ist dadurch gekennzeichnet, dass eine Vielzahl von Öffnungen (16) am Siebelement (11) vorgesehen sind; und die erste Förderleitung (19), die nahezu die gleiche Querschnittsfläche aufweist wie die Summe der Flächen der Öffnungen (16).
  5. Eine Geschirrspülmaschine (1), wie in einem der vorherigen Ansprüchen aufgeführt, ist dadurch gekennzeichnet, dass eine Verbindungsleitung (21) nach Betätigung des Verschlusses (14) über die erste Förderleitung (19) eine Wasserabgabe an den Sammelbehälter (18) ermöglicht.
  6. Eine Geschirrspülmaschine (1), wie in einem der vorherigen Ansprüchen aufgeführt, ist dadurch gekennzeichnet, dass das Siebelement (11) und das zusätzliche Siebelement (17) einen Durchlässigkeitsgrad für Feststoffpartikel aufweisen, der höchstens dem Durchlässigkeitsgrad des Mikrofilters (5) entspricht.
EP21199965.1A 2020-10-23 2021-09-29 Geschirrspülmaschine mit einem sieb Active EP3987997B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TR2020/16946A TR202016946A2 (tr) 2020-10-23 2020-10-23 Süzgeç içeren bir bulaşık makinesi

Publications (2)

Publication Number Publication Date
EP3987997A1 EP3987997A1 (de) 2022-04-27
EP3987997B1 true EP3987997B1 (de) 2024-03-27

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Application Number Title Priority Date Filing Date
EP21199965.1A Active EP3987997B1 (de) 2020-10-23 2021-09-29 Geschirrspülmaschine mit einem sieb

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EP (1) EP3987997B1 (de)
PL (1) PL3987997T3 (de)
TR (1) TR202016946A2 (de)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007060196A1 (de) * 2007-12-14 2009-06-18 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine
DE102011002989A1 (de) * 2011-01-21 2012-07-26 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine
ITPN20120063A1 (it) * 2012-10-16 2014-04-17 Emainox S P A Lavastoviglie con riciclo del liquido di lavaggio per cicli di lavaggio successivi
US10638910B2 (en) * 2013-06-21 2020-05-05 Whirlpool Corporation Method of variable filtration in a dishwasher
TR201603750A2 (tr) 2016-03-23 2017-10-23 Vestel Beyaz Esya Sanayi Ve Ticaret Anonim Sirketi Bir divizör.
US10893791B2 (en) * 2018-07-19 2021-01-19 Whirlpool Corporation Dishwasher and sump assembly

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PL3987997T3 (pl) 2024-07-29
TR202016946A2 (tr) 2022-05-23
EP3987997A1 (de) 2022-04-27

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