EP0862891B1 - Appareil domestique avec dispositif de mesure pour déterminer le degré d'encrassement du liquide de nettoyage - Google Patents

Appareil domestique avec dispositif de mesure pour déterminer le degré d'encrassement du liquide de nettoyage Download PDF

Info

Publication number
EP0862891B1
EP0862891B1 EP98100428A EP98100428A EP0862891B1 EP 0862891 B1 EP0862891 B1 EP 0862891B1 EP 98100428 A EP98100428 A EP 98100428A EP 98100428 A EP98100428 A EP 98100428A EP 0862891 B1 EP0862891 B1 EP 0862891B1
Authority
EP
European Patent Office
Prior art keywords
degree
washing liquid
dirt accumulation
determining
channels
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.)
Expired - Lifetime
Application number
EP98100428A
Other languages
German (de)
English (en)
Other versions
EP0862891A3 (fr
EP0862891A2 (fr
Inventor
Rainer Dr. Stamminger
Jürgen Vogel
Wolf-Dieter Krüger
Walter Sams
Michael Feser
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.)
AEG Hausgeraete GmbH
Original Assignee
AEG 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 AEG Hausgeraete GmbH filed Critical AEG Hausgeraete GmbH
Publication of EP0862891A2 publication Critical patent/EP0862891A2/fr
Publication of EP0862891A3 publication Critical patent/EP0862891A3/fr
Application granted granted Critical
Publication of EP0862891B1 publication Critical patent/EP0862891B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • A47L15/4297—Arrangements for detecting or measuring the condition of the washing water, e.g. turbidity

Definitions

  • the invention relates to a method for determining the Degree of contamination of the rinsing liquid Dishwasher according to the preamble of claim 1 and a dishwasher to operate the same Method according to the preamble of claim 5.
  • Such a dishwasher is from DE-OS 41 22 988 known.
  • the degree of soiling of a wash ware Flushing liquid through a measuring device in the intake duct a circulation pump. With the help of the determined The degree of soiling becomes the rinsing conditions set accordingly.
  • the measuring device has one Luminous element for emitting light and two Luminous element arranged opposite light receiving elements to receive the emitted light, with between the rinsing liquid for the transmitter and the receivers is passed through.
  • the intensity of the from the light element emitted and by the light receiving elements absorbed light depends on the degree of pollution the rinsing liquid.
  • the measurement of the degree of contamination of the rinsing liquid takes place during so-called dynamic operation, d. H. with flowing rinsing liquid.
  • dynamic operation d. H. with flowing rinsing liquid.
  • disturbing factors occur during operation (e.g. air bubbles in the rinsing liquid), which is the measurement result falsify so that it leads to incorrect measurements.
  • the present invention is therefore the object based, a method and an apparatus for Implementation of the method in a dishwasher to develop with which the actual Degree of contamination of the rinsing liquid without extension the wash program is measurable, with incorrect measurements be avoided.
  • the object is achieved in that a dishwasher with a device for Determine the degree of contamination of a rinsing liquid determining the degree of pollution during the Circulating the rinsing liquid at least approximately immobile rinsing liquid is carried out.
  • the inventive method for determining the Degree of contamination of the rinsing liquid Dishwasher has a device to with the help of the determined value of the degree of pollution to be able to set the further program sequence.
  • Around disruptive influences with a flowing liquid may occur for the measurement to be excluded Determination of the degree of contamination at least approximately immobile rinsing liquid while running Circulation operation carried out.
  • washing liquid If the washing liquid is almost immobile, they are in it dirt particles in the balance and possibly are entrained air bubbles during the flow largely escaped. Such conditions are for the Determination of the degree of contamination of the rinsing liquid Particularly suitable to rule out incorrect measurements.
  • the Prerequisite for an almost immobile rinsing liquid for the particularly good measuring conditions at otherwise running circulation operation is particularly so achievable that only part of the washing liquid is unmoved. This part of the rinsing liquid takes on Cleaning process not part at the time of measurement. The Most of the washing liquid circulates for the purpose the cleaning of the wash ware in a circulation circuit.
  • the process is in the circulation cycle of the dishwasher comprises a reversing device which the rinsing liquid alternately in at least two separate channels passes.
  • the rinsing liquid is carried in a channel while in the at least one other channel Partial amount of the rinsing liquid in an almost calm state remains.
  • the rinsing liquid one of the channels feed this facility.
  • the Degree of pollution can be measured at a time which is the channel to which the device for determining the 'Degree of pollution is assigned, not by the Reversing device is controlled.
  • the selection of the channel for the arrangement of the measuring device basically arbitrary, as a result of the alternating Control of the channels in each of the channels an almost immobile at different times Flush liquid can be found.
  • the degree of pollution in both Perform channels alternately, for example the light from a light source is fed into both channels becomes. The additional effort is essentially reduced to the second set of light receivers.
  • the invention is based on the drawing of a Embodiment explained in more detail.
  • the figure shows the longitudinal section of a household dishwasher.
  • a household dishwasher includes one Rinsing container 1 for arranging items to be washed and three Spray devices, a lower spray arm 3, an upper Spray arm 5 and a ceiling shower 7.
  • the spray devices 3, 5, 7 are from a circulation pump 9 with rinsing liquid fed.
  • the circulation pump 9 sucks out the rinsing liquid the sump 11 of the washing container 1, in which the returning rinsing liquid collects.
  • the circulation pump 9 is connected downstream of a reversing valve 13, which the the rinsing liquid supplied to the circulating pump 9 alternately a riser pipe 15 or a connecting hose 17 supplies.
  • the riser pipe 15 carries the rinsing liquid upper spray arm 5 too.
  • the connecting hose 17 branches itself in a connector 19 to the lower spray arm 3 and in a connecting hose 21, the mouth side with the Ceiling shower 7 is coupled.
  • the supply of fresh water takes place through a water supply hose 25 Flushing liquid is used at the end of the washing program a drain pump 27 removed from the device.
  • the dishwasher also has one Turbidity sensor 23 for determining the degree of contamination the rinsing liquid.
  • the turbidity sensor 23 is on Connection hose 21 coupled such that the Degree of contamination of the rinsing liquid contained therein can be detected.
  • the measurement is not carried out during the activation phase of the connecting hose 17 through the reversing valve 13, but at a time too which the rinsing liquid is fed to the upper spray arm 5 becomes. In this way it is located at the measuring point in the Connection hose 21 an almost immobile rinsing liquid.
  • the turbidity sensor 23 Because of the principle of communicating tubes, it is required that the turbidity sensor 23 to a maximum be arranged at the same height with the lower spray arm 3 so that rinsing liquid is present at the measuring location. Preferably however, it is in the base area of the dishwasher arranged so that it is below the operating level the rinsing liquid.

Landscapes

  • Washing And Drying Of Tableware (AREA)

Claims (9)

  1. Procédé pour déterminer le degré d'encrassement du liquide de lavage dans un lave-vaisselle, caractérisé en ce que la détermination du degré d'encrassement est effectuée au moyen d'au moins une installation (23) pour déterminer le degré d'encrassement pendant une étape de nettoyage ininterrompue dans un liquide de lavage au moins approximativement immobile.
  2. Procédé pour déterminer le degré d'encrassement du liquide de lavage d'un lave-vaisselle selon la revendication 1, caractérisé en ce que le liquide de lavage est amené pendant l'étape de nettoyage par une installation de commande d'au moins deux canaux séparés (15, 17, 21).
  3. Procédé pour déterminer le degré d'encrassement du liquide de lavage d'un lave-vaisselle selon la revendication 2, caractérisé en ce que le liquide de lavage est amené pendant l'opération de nettoyage par une installation de commande (13) alternativement à au moins deux canaux séparés de l'autre (15, 17, 21).
  4. Procédé pour déterminer le degré d'encrassement du liquide de lavage d'un lave-vaisselle selon la revendication 2 ou 3, caractérisé en ce que la détermination du degré d'encrassement du liquide de lavage est effectuée dans l'un des canaux (15, 17, 21).
  5. Procédé pour déterminer le degré d'encrassement du liquide de lavage d'un lave-vaisselle selon l'une des revendications 2 à 4, caractérisé en ce que la détermination du degré d'encrassement du liquide de lavage a lieu pendant l'opération de nettoyage à un instant dans le canal (15, 17, 21) auquel est associée une installation (23) pour déterminer le degré d'encrassement, où ce canal (15, 17, 21) n'est pas commandé par l'installation de commande (13).
  6. Procédé pour déterminer le degré d'encrassement du liquide de lavage d'un lave-vaisselle selon la revendication 5, caractérisé en ce que l'installation (23) pour déterminer le degré d'encrassement émet de la lumière d'une source de lumière dans un des canaux (15, 17, 21) ou dans les deux canaux (15, 17, 21), où la part transmettante de la lumière est reçue par un récepteur de lumière associé respectivement au canal (15, 17, 21).
  7. Lave-vaisselle, qui convient pour la détermination du degré d'encrassement du liquide de lavage, comprenant une installation de commande (13), une installation (23) pour déterminer le degré d'encrassement du liquide de lavage et au moins deux canaux séparés l'un de l'autre (15, 17, 21), alternativement au moins deux canaux séparés l'un de l'autre (15, 17 respectivement 21, 15) peuvent être commandés par l'installation de commande (13) et du liquide de lavage peut être amené à ceux-ci séparément, caractérisé en ce que l'installation (23) pour déterminer le degré d'encrassement est réalisée comme turbidimètre (23) et est disposée en dessous du niveau de fonctionnement du liquide de lavage, au maximum à la même hauteur avec le dispositif de distribution de liquide de lavage (3) situé le plus bas à l'un des canaux (15, 17, 21).
  8. Lave-vaisselle, qui convient pour déterminer le degré d'encrassement du liquide de lavage selon la revendication 7, caractérisé en ce que le turbidimètre (8) comporte une source de lumière et au moins un réflecteur de lumière.
  9. Lave-vaisselle, qui convient pour déterminer le degré d'encrassement de liquide de lavage selon la revendication 7 ou 8 caractérisé en ce qu'aux deux canaux (15, 17, 21) est associé respectivement un récepteur de lumière dans lequel de la lumière d'une source lumière peut être introduite alternativement dans les deux canaux.
EP98100428A 1997-02-17 1998-01-13 Appareil domestique avec dispositif de mesure pour déterminer le degré d'encrassement du liquide de nettoyage Expired - Lifetime EP0862891B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19705927 1997-02-17
DE19705927A DE19705927A1 (de) 1997-02-17 1997-02-17 Geschirrspülmaschine mit einer Einrichtung zum Ermitteln des Verschmutzungsgrades einer Spülflüssigkeit

Publications (3)

Publication Number Publication Date
EP0862891A2 EP0862891A2 (fr) 1998-09-09
EP0862891A3 EP0862891A3 (fr) 1999-02-17
EP0862891B1 true EP0862891B1 (fr) 2003-12-17

Family

ID=7820418

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98100428A Expired - Lifetime EP0862891B1 (fr) 1997-02-17 1998-01-13 Appareil domestique avec dispositif de mesure pour déterminer le degré d'encrassement du liquide de nettoyage

Country Status (2)

Country Link
EP (1) EP0862891B1 (fr)
DE (2) DE19705927A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8778094B2 (en) 2011-05-11 2014-07-15 Whirlpool Corporation Dishwasher with multi-feed washing system
US8801863B2 (en) 2011-05-11 2014-08-12 Whirlpool Corporation Dishwasher with rack corner spray system
US9034114B2 (en) 2012-09-14 2015-05-19 Whirlpool Corporation Dishwasher with booster agent dispersal system

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19949801A1 (de) * 1999-10-15 2001-04-19 Bsh Bosch Siemens Hausgeraete Verfahren und Vorrichtung zur Bestimmung der Art und Konzentration von Beimischungsanteilen in einer Flüssigkeit
DE10059112C1 (de) 2000-11-28 2002-05-08 Miele & Cie Geschirrspülmaschine mit einer Einrichtung zur Verhinderung einer Schaum- oder Luftblasenansammlung in der Messzone eines Trübungssensors
DE10146641C1 (de) * 2001-09-21 2002-12-12 Miele & Cie Einrichtung mit einem Trübungssensor für eine Geschirrspülmaschine oder Waschmaschine
DE10359841A1 (de) * 2003-12-19 2005-07-21 Electrolux Home Products Corporation N.V. Geschirrspülmaschine mit einer Flüssigkeitsverteilungseinrichtung und Verfahren zum Umschalten derselben
DE102015204540A1 (de) * 2015-03-13 2016-09-15 BSH Hausgeräte GmbH Verfahren zum Betrieb einer Waschmaschine mit einem elektrochemischen Sensor sowie hierzu geeignete Waschmaschine
DE102017123048A1 (de) 2016-10-19 2018-04-19 Miele & Cie. Kg Geschirrspülmaschine, insbesondere Haushaltsgeschirrspülmaschine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5172572A (en) * 1990-07-12 1992-12-22 Alps Electric Co., Ltd. Automatic washing apparatus
DE4215574C2 (de) * 1992-05-12 1996-05-30 Aeg Hausgeraete Gmbh Geschirrspülmaschine
JPH06129986A (ja) * 1992-10-19 1994-05-13 Toshiba Corp 食器洗浄機用汚れ検知装置
DE4243869A1 (de) * 1992-12-23 1994-07-07 Bosch Siemens Hausgeraete Haushalt-Geschirrspülmaschine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8778094B2 (en) 2011-05-11 2014-07-15 Whirlpool Corporation Dishwasher with multi-feed washing system
US8801863B2 (en) 2011-05-11 2014-08-12 Whirlpool Corporation Dishwasher with rack corner spray system
US10213086B2 (en) 2011-05-11 2019-02-26 Whirlpool Corporation Dishwasher with multi-feed washing system
US9034114B2 (en) 2012-09-14 2015-05-19 Whirlpool Corporation Dishwasher with booster agent dispersal system

Also Published As

Publication number Publication date
DE59810428D1 (de) 2004-01-29
EP0862891A3 (fr) 1999-02-17
DE19705927A1 (de) 1998-08-20
EP0862891A2 (fr) 1998-09-09

Similar Documents

Publication Publication Date Title
EP0862891B1 (fr) Appareil domestique avec dispositif de mesure pour déterminer le degré d'encrassement du liquide de nettoyage
DE3626351C2 (fr)
DE10319467B3 (de) Einrichtung mit einem Trübungssensor für eine Geschirrspülmaschine oder Waschmaschine
DE68912958T2 (de) Sich selbst reinigendes Hydromassage-System für Badewannen.
DE10059112C1 (de) Geschirrspülmaschine mit einer Einrichtung zur Verhinderung einer Schaum- oder Luftblasenansammlung in der Messzone eines Trübungssensors
EP0906747A3 (fr) Dispositif pour la distribution dosée d'un produit de nettoyage en poudre dans les machines à nettoyer utilisant de l'eau
WO1994023286A1 (fr) Procede de mesure du degre de salissure d'un bain de lavage
EP0980670A2 (fr) Dispositif continu pour corbeilles à vaisselle de lave-vaisselle et procédé pour son fonctionnement
DE19721976B4 (de) Verfahren zum Feststellen eines unzulässig hohen Verkalkungsgrades in einem wasserführenden Haushaltsgerät
DE69002654T2 (de) Abflussvorrichtung für einen Geschirrspüler.
DE19650915A1 (de) Flüssigkeitsführendes Hausgerät mit einer Programmsteuerung
DE112005001525T5 (de) Waschmaschine und Verfahren, um ihr Wasser zuzuführen
DE10253009B3 (de) Verfahren zum Betrieb einer Geschirrspülmaschine
EP1238623B1 (fr) Procédé de calibrage d'un capteur de turbidité
EP0862892B1 (fr) Appareil domestique avec dispositif de mesure pour déterminer le degré d'encrassement du liquide de nettoyage
DE102005018879B4 (de) Geschirrspüler
DE19534431A1 (de) Verfahren und Einrichtung zur Bestimmung des Verschmutzungsgrades von textilem Waschgut
DE10008318B4 (de) Wasserführendes Haushaltsgerät mit einem Entleerungssystem sowie Verfahren zur Befüllung und zur Überwachung einer Entleerung eines Arbeitsbehälters
CH704603A2 (de) Waschmaschine mit Wassermischung in der Waschmittelzuführung.
DE10045151C2 (de) Verfahren zur Zufuhr von Klarspülmittel bei einer Geschirrspülmaschine
EP0992621B1 (fr) Procédé pour commander un appareil ménager de conduisant du liquide et un appareil ménager fonctionnant selon ce procédé
DE19816660A1 (de) Farbwerk für Rotationsdruckmaschinen
DE3102547A1 (de) Geschirrspuelmaschine
DE19806700C2 (de) Anordnung zum Trocknen von Geschirr in einer Geschirrspülmaschine
DE102010038689B4 (de) Wasserführendes Haushaltsgerät, insbesondere Geschirrspülmaschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19990708

AKX Designation fees paid

Free format text: DE FR IT

17Q First examination report despatched

Effective date: 20020419

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR IT

REF Corresponds to:

Ref document number: 59810428

Country of ref document: DE

Date of ref document: 20040129

Kind code of ref document: P

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20040920

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20050118

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20050128

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060131

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20060131

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060801

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20060929

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070113