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EP2844125A1 - Lave-vaisselle comprenant un filtre - Google Patents

Lave-vaisselle comprenant un filtre

Info

Publication number
EP2844125A1
EP2844125A1 EP13716812.6A EP13716812A EP2844125A1 EP 2844125 A1 EP2844125 A1 EP 2844125A1 EP 13716812 A EP13716812 A EP 13716812A EP 2844125 A1 EP2844125 A1 EP 2844125A1
Authority
EP
European Patent Office
Prior art keywords
sump
water
channel
dishwasher
filter
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Withdrawn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
EP13716812.6A
Other languages
German (de)
English (en)
Inventor
Mehmet Ozan TRAS
Guvenc Nayman Numanoglu
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
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 Arcelik AS filed Critical Arcelik AS
Publication of EP2844125A1 publication Critical patent/EP2844125A1/fr
Withdrawn legal-status Critical Current

Links

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
    • A47L15/4208—Arrangements to prevent clogging of the filters, e.g. self-cleaning

Definitions

  • the present invention relates to a dishwasher comprising a filter.
  • Filters used in dishwashers clog due to the dirt adhering thereon after consecutive washings.
  • the clogging of the filter decreases the washing performance of the dishwasher and makes the filtration system dysfunctional.
  • the user is required to remove and clean the filter at certain periods. But many users never clean the filter or cannot replace it properly after the cleaning.
  • the filter not being cleaned or its erroneous mounting causes the washing performance to decrease. For this reason, in the state of the art, various solutions have been developed for the filter to clean itself.
  • a washing sump is situated at the lower portion of the washing tub, wherein the water in the washing tub is collected during the washing process and in the middle of which the filter is placed.
  • the circulation pump which is used to return the water collected in the washing sump to the washing tub is connected to the washing sump by means of a suction hose. Due to the limited space in the dishwasher, the circulation pump and the mains water inlet are positioned so as to be at the two sides of the sump. Almost opposite to the wall where the circulation pump is connected to the washing sump, a supply hose is provided, one end of which is connected to the mains and the other end to the sump.
  • the circulation pump sucks the water in the washing sump by means of the suction hose, more dirt accumulates at the inner part of the washing sump remaining at the side of the wall thereof to which the suction hose is connected. For this reason, in order to increase the filter-cleaning performance, the supply hose must go around the sump located between the mains water inlet and the circulation pump, and spray the water onto the outer surface of the filter from the side where the suction hose is situated.
  • the supply hose may get twisted and adversely affect the water flow, and even the hose may break. Due to the increased length of the hose, the water pressure decreases and an efficient cleaning cannot be performed with the water with reduced pressure. Moreover, in the case the supply hose is not fixed to the sump along the line the supply hose covers, the risk of the hose contacting the heater and getting burned and torn may arise.
  • an additional water inlet hole is disclosed, that is situated in almost the same vertical direction as the suction hole and at a higher level that the suction hole and that sprays water onto the outer surface of the microfilter.
  • the aim of the present invention is the realization of a dishwasher comprising a filter which can be cleaned without requiring user intervention.
  • the dishwasher realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a channel located on the sump, through which the water taken from the mains passes.
  • the channel has an inlet port and at least an outlet port, and the water received from the mains enters the channel through the inlet port and is sprayed onto the filter surface from the outlet port.
  • the outlet port is positioned so as to spray the mains water onto the outer surface of the filter facing the side where the suction hole is located.
  • the channel provides the water to be conveyed over the sump. Since the circulation pump and the mains water inlet are generally positioned so that the sump remains therebetween due to the limited space in the dishwasher, the water being conveyed by means of the channel located on the sump so that the inlet port is close to the mains water inlet and the outlet port is close to the circulation pump shortens the water-conveying path. Thus, friction-based pressure losses and the space occupied by the channel on the dishwasher are decreased. Moreover, the material cost of the channel is decreased. Furthermore, since the water is conveyed over the sump, conveying means such as hose, pipe, etc. are prevented from hitting the heater.
  • the water received from the inlet port circulates almost half of the sump periphery and is sprayed onto the outer surface of the filter from the outlet port.
  • the channel is located on the inner wall of the sump.
  • the channel is provided to occupy less space in the body without protruding outside the sump.
  • the channel and the sump are produced as a single piece, for example by the plastic injection method.
  • ease of production is provided and the number of production errors is decreased.
  • the vertical cross-sectional area of the channel narrows from the inlet port towards the outlet port.
  • the speed of the water passing through the channel and sprayed onto the outer surface of the filter increases towards the channel outlet port, thus the filter-cleaning performance is improved.
  • the inlet port of the channel is located at a higher position that the outlet port.
  • the speed of the water increases moving from the water inlet port towards the outlet port, thus the filter-washing performance is improved.
  • the channel is located on the sump wall in an inclined manner.
  • the channel extends on the cylindrical or conic wall of the sump by following a helical arc.
  • the channel comprises a step extending from the sump wall towards the filter and a lid covering the step.
  • the step extends from the inner wall of the sump towards the filter.
  • the channel comprises at least one hole arranged between the inlet port and the outlet port.
  • water is sprayed onto the filter along the channel through the holes, thus providing an improved cleaning of the filter.
  • the cross-sectional areas of the holes are shaped so as to narrow in the flow direction of the water.
  • the mains water is delivered to the channel after passing through the supply line that extends between the mains and the inlet port.
  • the mains water is delivered to the channel after passing through the water softening unit.
  • the mains water passing through the water softening unit is delivered to the channel by means of the supply line.
  • the water is sprayed in the reverse direction to the dirt accumulating on the inner surface of the filter and thus the filter is provided to be cleaned without requiring user intervention.
  • the body volume is effectively used and space is gained for the placement of the circulation pump and the water softening unit.
  • Figure 1 – is the schematic view of a dishwasher.
  • Figure 2 – is the perspective view of the sump, the filter and the channel relating to an embodiment of the present invention .
  • Figure 3 – is the partial perspective view of the sump, the filter and the channel relating to an embodiment of the present invention .
  • Figure 4 – is the perspective view of a lid relating to an embodiment of the present invention.
  • the dishwasher (1) comprises a washing tub (2), a sump (3) located under the washing tub (2) and wherein the water in the washing tub (2) accumulates during the washing process, a filter (4) located on the sump (3), allowing the wash water to pass from the washing tub (2) into the sump (3) and retaining dirt carried with the water, a circulation pump (5) providing the circulation of the wash water accumulating in the sump (3) and a suction hole (6) located on the sump (3) and whereto the circulation pump (5) is connected.
  • the dishwasher (1) of the present invention comprises a channel (7) that is located on the sump (3), that has an inlet port (8) providing the receiving of water from the mains and at least an outlet port (9) opening to the periphery of the suction hole (6) and providing the spraying of the water onto the filter (4), and that provides the water received from the inlet port (8) to be conveyed towards the outlet port (9).
  • the dishwasher (1) While the dishwasher (1) operates, the water accumulated in the sump (3) is sucked by means of the circulation pump (5) and sent to the spray arms that deliver water to the racks. While the water accumulated in the sump (3) is sucked by means of the circulation pump (5), dirt carried by the water accumulates on the inner surface of the wall of the filter (4) situated in front of the suction hole (6). The water received from the mains is transferred into the channel (7) through the inlet port (8) and sprayed onto the filter (4) from the outlet port (9). Thus, the dirt accumulating on the inner surface of the filter (4) is removed from the inner surface by means of the water flow in reverse direction to the sucking direction, thus the filter (4) is provided to be cleaned without requiring user intervention.
  • the channel (7) providing the water to be conveyed over the sump (3) is positioned so that the inlet port (8) thereof is located close to the mains water inlet and the outlet port (9) thereof is located close to the circulation pump (5). Due to the limited space in the dishwasher (1), the circulation pump (5) and the mains water inlet are oppositely positioned so as to be at the two sides of the sump (3). In line with this positioning, the channel (7) being positioned on the sump (3) so that the inlet port (8) thereof is located close to the mains water inlet and the outlet port (9) thereof is located close to the circulation pump (5) shortens the conveying path of the water. Thus, friction-based pressure losses and the space occupied by the channel (7) on the dishwasher (1) are decreased. Moreover, the material cost of the channel (7) is decreased.
  • the inlet port (8) and the outlet port (9) are almost oppositely positioned on the sump (3). Due to the limited space in the dishwasher (1), the circulation pump (5) and the mains water inlet are oppositely positioned so that the sump (3) remains therebetween. Thus, the outlet port (9) is located on the sump (3), almost opposite to the inlet port (8) so as to be in the same vertical direction with the circulation pump (5).
  • the channel (7) is located on the inner wall of sump (3).
  • the channel (7) is produced with the sump (3) as a single piece.
  • the amount of waste in production is decreased, providing cost advantage in production.
  • the cross-sectional area of the channel (7) narrows from the inlet port (8) towards the outlet port (9).
  • the speed of the water passing through the channel (7) and sprayed onto the outer surface of the filter (4) increases towards the outlet port (9), thus the filter (4)-cleaning performance is improved.
  • the inlet port (8) is located at a position higher than the outlet port (9).
  • the water received from the inlet port (8) speeds up while flowing towards the outlet port (9), thus a more effective filter (4)-cleaning is provided.
  • the channel (7) is in inclined form.
  • the flowing speed of water increases and the filter (4)-cleaning performance is improved.
  • the sump (3) is cylindrical or conic and the channel (7) extends on the wall of the sump (3) by following a helical arc.
  • the channel (7) comprises a step (10) and a lid (11) covering the step (10).
  • the outlet port (9) is located on the lid (11).
  • the cross-section of the lid (11) is in form of an inverted “L”.
  • the channel (7) comprises at least one hole (14) arranged thereon.
  • the dishwasher (1) comprises a supply line (13) that extends between the mains and the inlet port (8).
  • the dishwasher (1) comprises a water softening unit (12) located on the supply line (13).
  • the water received from the mains is conveyed to the channel (7) by the supply line (13).
  • the filter (4) is provided to be cleaned without requiring user intervention.
  • the body volume is effectively used and space is gained for the placement of the circulation pump (5) and the water softening unit (12).
  • the water conveyed through the channel (7) is prevented from losing pressure, thus improving the filter (4)-washing performance.

Landscapes

  • Washing And Drying Of Tableware (AREA)

Abstract

La présente invention a trait à un lave-vaisselle (1) qui comprend une cuve de lavage (2), un puisard (3) qui se trouve sous la cuve de lavage (2) et où l'eau dans la cuve de lavage (2) s'accumule au cours du processus de lavage, un filtre (4) qui se trouve sur le puisard (3), permettant à l'eau de lavage de passer de la cuve de lavage (2) au puisard (3) et retenant la saleté transportée par l'eau, une pompe de circulation (5) permettant à l'eau de lavage s'accumulant dans le puisard (3) de circuler, et un trou d'aspiration (6) qui se trouve sur le puisard (3) et auquel la pompe de circulation (5) est connectée.
EP13716812.6A 2012-05-04 2013-04-18 Lave-vaisselle comprenant un filtre Withdrawn EP2844125A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201205228 2012-05-04
PCT/EP2013/058109 WO2013164200A1 (fr) 2012-05-04 2013-04-18 Lave-vaisselle comprenant un filtre

Publications (1)

Publication Number Publication Date
EP2844125A1 true EP2844125A1 (fr) 2015-03-11

Family

ID=48128329

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13716812.6A Withdrawn EP2844125A1 (fr) 2012-05-04 2013-04-18 Lave-vaisselle comprenant un filtre

Country Status (3)

Country Link
EP (1) EP2844125A1 (fr)
AU (1) AU2013256908A1 (fr)
WO (1) WO2013164200A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018001849A1 (fr) * 2016-07-01 2018-01-04 Arcelik Anonim Sirketi Lave-vaisselle
US10512386B2 (en) 2017-02-24 2019-12-24 Haier Us Appliance Solutions, Inc. Dishwasher appliance and filter
EP4393370A1 (fr) * 2022-12-29 2024-07-03 Arçelik Anonim Sirketi Lave-vaisselle comprenant un filtre

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1428358A1 (de) * 1964-12-16 1968-11-14 Braun Ag Geschirrspuelmaschine mit im Kreislauf gefuehrtem Spuelwasser
DE3745169C2 (de) * 1986-11-13 1999-07-22 Candy Elettrodomestici Geschirrspülmaschine
DE9102957U1 (de) * 1991-03-13 1992-07-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Selbstreinigendes Siebsystem für Haushalt-Geschirrspülmaschinen
DE4200416A1 (de) * 1992-01-10 1993-07-15 Licentia Gmbh Siebkombination fuer haushalt-geschirrspuelmaschinen
US20060237049A1 (en) * 2005-04-25 2006-10-26 Viking Range Corporation Primary filter cleaning system for a dishwasher
EP2179685B1 (fr) * 2008-10-23 2013-01-09 Electrolux Home Products Corporation N.V. Lave-vaisselle
WO2011039253A1 (fr) 2009-10-01 2011-04-07 Arcelik Anonim Sirketi Lave-vaisselle comprenant un micro-filtre

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013164200A1 *

Also Published As

Publication number Publication date
AU2013256908A1 (en) 2014-11-27
WO2013164200A1 (fr) 2013-11-07

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