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EP4368094B1 - Lave-vaisselle comprenant un mécanisme de filtration - Google Patents

Lave-vaisselle comprenant un mécanisme de filtration

Info

Publication number
EP4368094B1
EP4368094B1 EP23207204.1A EP23207204A EP4368094B1 EP 4368094 B1 EP4368094 B1 EP 4368094B1 EP 23207204 A EP23207204 A EP 23207204A EP 4368094 B1 EP4368094 B1 EP 4368094B1
Authority
EP
European Patent Office
Prior art keywords
filter
dishwasher
guiding member
spacer
coarse 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.)
Active
Application number
EP23207204.1A
Other languages
German (de)
English (en)
Other versions
EP4368094A1 (fr
Inventor
Mehmet DIKSAN
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
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 EP4368094A1 publication Critical patent/EP4368094A1/fr
Application granted granted Critical
Publication of EP4368094B1 publication Critical patent/EP4368094B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • A47L15/4206—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
    • A47L15/4202—Water filter means or strainers
    • A47L15/4204—Flat 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
    • A47L15/4202—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 filtering mechanism with improved dirt retention performance.
  • Dishwashers comprises a sump which is disposed at the bottom of the washing tub, where the water in the washing tub is collected during the washing process, and a filtering mechanism which is disposed in the sump and which has a coarse filter and a micro filter.
  • the filtering mechanism becomes clogged due to dirt adhering thereto, especially after consecutive washings. Loss of function of the filtering mechanism causes the performance of the dishwasher to decrease.
  • the user is requested to remove and clean the filters periodically.
  • many users either never clean the filtering mechanism or cannot replace the same properly after the cleaning. Therefore, in the state of the art, various solutions have been developed where especially the micro filter cleans itself.
  • the coarse filter retains dirt large enough to prevent discharge, and allows the passage of dirt not large enough to prevent discharge, thus ensuring that the inside of the washing tub remains clean. Preventing the movement of dirt accumulated in the micro filter positively affects washing performance.
  • a spacer called "Chinese hat” is used between the coarse filter and the micro filter, which is positioned so as to remain above the coarse filter.
  • said spacer does not have a structure which prevents the dirt accumulated in the micro filter from moving.
  • a dishwasher comprising a filtering mechanism which has a coarse filter and a micro filter.
  • German Patent Application No. DE2703434 relates to rinse the dirt deposited on the fine sieve from the previous rinsing section into the emptying system.
  • the aim of the present invention is the realization of a dishwasher comprising a filtering mechanism with improved dirt retention performance.
  • 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 washing tub wherein the dishes to be washed are loaded; a sump which is disposed at the lower side of the washing tub and wherein the water in the washing tub is collected during the washing process; and a filtering mechanism which is disposed in the sump, which is cylindrical and which has a micro filter collecting the dirt in the water, a coarse filter placed on the micro filter and a conical guiding member hung at the base of the coarse filter so as to extend into the micro filter and guiding the water passing through the coarse filter towards the lateral wall of the micro filter.
  • the water reaching the filtering mechanism passes through the coarse filter, then hits the lateral surface of the guiding member disposed at the lower side of the coarse filter and is directed towards the lateral wall of the micro filter.
  • the performance of the filtering mechanism and hence the washing performance are increased.
  • the dishwasher comprises a spacer which enables the guiding member to be attached to the coarse filter and which has a ring-shaped base and two opposite, parallel arms extending vertically upwards from the base.
  • the spacer can be attached to the coarse filter by means of the two arms so as to be coaxial with the coarse filter.
  • the dishwasher comprises at least two hanging means which are placed opposite to each other and which extend perpendicularly between the base of the spacer and the base of the guiding member so as to remain under the spacer, and the guiding member is attached to the spacer so as to extend from the base downwards by means of said hanging means.
  • the spacer and the guiding member can be a single piece or two separate pieces.
  • the spacer is attached to the filtering mechanism together with the guiding member, to the coarse filter disposed above the micro filter.
  • the guiding member extends from the base of the spacer which forms the base of the coarse filter, downwards into the micro filter, as if suspended in air, so as to be coaxial with the micro filter and the coarse filter.
  • the lateral surface of the guiding member extends towards the lateral wall of the micro filter in a manner inclined from top to bottom.
  • the filtering mechanism comprising a spraying member which enables the micro filter to self-clean.
  • the micro filter, the coarse filter, the spraying member and the guiding member are placed coaxially.
  • the dishwasher comprises four hanging means.
  • the guiding member comprises at least one slit on the lateral surface thereof, which extends from top to bottom so as to enable water and dirt to leave the lateral surface more easily.
  • the movement in the micro filter is reduced by directing the water and dirt separated from the coarse filter to the lateral walls of the micro filter rather than to the center. Moreover, it can be used in both standard filtering mechanisms and filtering mechanisms where the micro filter has the ability to self-clean. Since the movement of the water in the micro filter is reduced, the water and dirt are distributed towards the lateral walls of the micro filter, thus preventing the movement of accumulated dirt and dirty water.
  • the dishwasher comprises a washing tub wherein the dishes to be washed are loaded; a sump which is disposed at the lower side of the washing tub and wherein the water in the washing tub is collected during the washing process; and a filtering mechanism (1) which is disposed in the sump, which is cylindrical and which has a micro filter (3) collecting the dirt in the water, a coarse filter (2) placed on the micro filter (3) and a conical guiding member (4) hung at the base of the coarse filter (2) so as to extend into the micro filter (3) and guiding the water passing through the coarse filter (2) towards the lateral wall of the micro filter (3).
  • the water reaching the filtering mechanism (1) passes through the coarse filter (2), then hits the lateral surface of the guiding member (4) disposed at the lower side of the coarse filter (2) and is directed towards the lateral wall of the micro filter (3).
  • the performance of the filtering mechanism (1) and hence the washing performance are increased ( Figure 1 ).
  • the guiding member (4) is a right circular cone.
  • the lateral surface (9) of the guiding member (4) extends at a certain angle towards the lateral wall of the micro filter (3).
  • the dishwasher comprises a spacer (5) which enables the guiding member (4) to be attached to the coarse filter (2) and which has a ring-shaped base (6) and two opposite, parallel arms (7) extending vertically upwards from the base (6).
  • the spacer (5) is attached to the coarse filter (2) by means of the two arms (7) so as to be coaxial with the coarse filter (2) ( Figure 3, Figure 4 and Figure 5 ).
  • the dishwasher comprises at least two hanging means (8) which are placed opposite to each other and which extend perpendicularly between the base (6) of the spacer (5) and the base of the guiding member (4) so as to remain under the spacer (5), and the guiding member (4) is attached to the spacer (5) so as to extend from the base (6) downwards by means of said hanging means (8).
  • the spacer (5) and the guiding member (4) can be a single piece or two separate pieces.
  • the spacer (5) is attached to the filtering mechanism (1) together with the guiding member (4), to the coarse filter (2) disposed above the micro filter (3).
  • the guiding member (4) extends from the base (6) of the spacer (5) which forms the base of the coarse filter (2), downwards into the micro filter (3), as if suspended in air, so as to be coaxial with the micro filter (3) and the coarse filter (2).
  • the lateral surface (9) of the guiding member (4) extends towards the lateral wall of the micro filter (3) in a manner inclined from top to bottom.
  • the filtering mechanism (1) comprising a spraying member (11) which enables the micro filter (3) to self-clean.
  • the micro filter (3), the coarse filter (2), the spraying member (11) and the guiding member (4) are placed coaxially ( Figure 2 ).
  • the dishwasher comprises four hanging means (8).
  • the guiding member (4) comprises at least one slit (10) on the lateral surface (9) thereof, which extends from top to bottom so as to enable water and dirt to leave the lateral surface (9) more easily.
  • the movement in the micro filter (3) is reduced by directing the water and dirt separated from the coarse filter (2) to the lateral walls of the micro filter (3) rather than to the center. Moreover, it can be used in both standard filtering mechanisms (1) and filtering mechanisms (1) where the micro filter (3) has the ability to self-clean. Since the movement of the water in the micro filter (3) is reduced, the water and dirt are distributed towards the lateral walls of the micro filter (3), thus preventing the movement of accumulated dirt and dirty water.

Landscapes

  • Washing And Drying Of Tableware (AREA)

Claims (7)

  1. Un lave-vaisselle comprenant une cuve de lavage dans laquelle la vaisselle à laver est chargée ; un puisard disposé au bas de la cuve de lavage et dans lequel l'eau dans la cuve de lavage est collectée pendant le processus de lavage ; et un mécanisme de filtration (1) qui est disposé dans le puisard, qui a une forme cylindrique et qui comporte un micro-filtre (3) collectant les saletés dans l'eau, et un filtre grossier (2) placé sur le micro-filtre (3), le mécanisme de filtration (1) comportant un élément de guidage conique (4) suspendu à la base du filtre grossier (2) de manière à s'étendre dans le micro-filtre (3) et guidant l'eau passant à travers le filtre grossier (2) vers la paroi latérale du micro-filtre (3), caractérisé par un entretoise (5) qui permet la fixation de l'élément de guidage (4) au filtre grossier (2), qui possède une base en forme d'anneau (6) et deux bras opposés, parallèles (7) s'étendant verticalement vers le haut depuis la base (6).
  2. Un lave-vaisselle selon la Revendication 1, caractérisé par l'entretoise (5) qui est fixée au filtre grossier (2) au moyen des deux bras (7), de manière à être coaxiale avec le filtre grossier (2).
  3. Un lave-vaisselle selon la Revendication 2, caractérisé par au moins deux moyens de suspension (8) qui sont disposés l'un en face de l'autre et qui s'étendent perpendiculairement entre la base (6) de l'entretoise (5) et la base de l'élément de guidage (4), de manière à rester sous l'entretoise (5).
  4. Un lave-vaisselle selon la Revendication 3, caractérisé par l'élément de guidage (4) qui est fixé à l'entretoise (5) de manière à s'étendre vers le bas à partir de la base (6) au moyen desdits moyens de suspension (8).
  5. Un lave-vaisselle selon la Revendication 3 ou 4, caractérisé par quatre moyens de suspension (8).
  6. Un lave-vaisselle selon la Revendication 1, caractérisé par au moins une fente (10) sur la surface latérale (9) de l'élément de guidage, qui s'étend du haut vers le bas afin de permettre à l'eau et aux saletés de quitter plus facilement la surface latérale (9).
  7. Un lave-vaisselle selon la Revendication 6, caractérisé par huit fentes (10) qui sont disposées à intervalles réguliers sur la surface latérale (9).
EP23207204.1A 2022-11-07 2023-10-31 Lave-vaisselle comprenant un mécanisme de filtration Active EP4368094B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TR202216788 2022-11-07

Publications (2)

Publication Number Publication Date
EP4368094A1 EP4368094A1 (fr) 2024-05-15
EP4368094B1 true EP4368094B1 (fr) 2025-08-06

Family

ID=88647424

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23207204.1A Active EP4368094B1 (fr) 2022-11-07 2023-10-31 Lave-vaisselle comprenant un mécanisme de filtration

Country Status (1)

Country Link
EP (1) EP4368094B1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2703434C3 (de) * 1977-01-28 1981-03-12 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Einrichtung an Geschirrspülmaschinen zum Filtern des Spülwassers
IT1289186B1 (it) 1997-01-22 1998-09-29 Smeg Spa Dispositivo di filtrazione perfezionato per macchine lavastoviglie
EP1386575B1 (fr) 2002-07-31 2005-10-05 CANDY S.p.A. Lave-vaisselle avec filtre broyeur mis en rotation par le flux du liquide de lavage
KR102151662B1 (ko) * 2014-01-28 2020-09-03 엘지전자 주식회사 식기 세척기
WO2020094297A1 (fr) * 2018-11-09 2020-05-14 Arcelik Anonim Sirketi Lave-vaisselle comprenant un filtre

Also Published As

Publication number Publication date
EP4368094A1 (fr) 2024-05-15

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