EP2201883B1 - Lave-vaisselle avec nébulisateur et procédé de traitement de la vaisselle - Google Patents

Lave-vaisselle avec nébulisateur et procédé de traitement de la vaisselle Download PDF

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Publication number
EP2201883B1
EP2201883B1 EP08425795.5A EP08425795A EP2201883B1 EP 2201883 B1 EP2201883 B1 EP 2201883B1 EP 08425795 A EP08425795 A EP 08425795A EP 2201883 B1 EP2201883 B1 EP 2201883B1
Authority
EP
European Patent Office
Prior art keywords
washing
dishwashing machine
nebulisation
washing liquid
program
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.)
Not-in-force
Application number
EP08425795.5A
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German (de)
English (en)
Other versions
EP2201883A1 (fr
Inventor
Silvano Fumagalli
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.)
Candy SpA
Original Assignee
Candy SpA
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Application filed by Candy SpA filed Critical Candy SpA
Priority to ES08425795T priority Critical patent/ES2743236T3/es
Priority to EP08425795.5A priority patent/EP2201883B1/fr
Publication of EP2201883A1 publication Critical patent/EP2201883A1/fr
Application granted granted Critical
Publication of EP2201883B1 publication Critical patent/EP2201883B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • A47L15/0002—Washing processes, i.e. machine working principles characterised by phases or operational steps
    • A47L15/0015—Washing processes, i.e. machine working principles characterised by phases or operational steps other treatment phases, e.g. steam or sterilizing phase
    • 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
    • A47L2601/00—Washing methods characterised by the use of a particular treatment
    • A47L2601/02—Pressurised cleaning liquid delivered by a pump

Definitions

  • the present invention relates to a dishwashing machine of the type comprising a washing container to receive dishes to be washed, a spraying device adapted to spray a non-nebulised washing liquid on the dishes arranged in the washing container, and a heating device (10) adapted to heat the washing liquid.
  • a dishwashing machine provided with washing liquid nebulisation means.
  • the present invention further relates to a dish treatment method by means of a dishwashing machine.
  • the washing liquid is usually introduced in the washing container by means of spraying devices and, after the last washing cycle, a final rinsing step is performed, in which a brightener substance can be added to the washing liquid.
  • the dishes are wetted by a spraying device through a washing liquid previously mixed with a detergent.
  • Dishwashing machines with spraying devices are known, in which the washing liquid is distributed in the washing container by means of rotating sprayer arms. Due to the usually rectangular shape of the washing container, and the circular spray zone of the rotating sprayer arms, the washing liquid does not result to be evenly distributed in all the zones of the washing container.
  • Stationary spraying devices or nozzles are further known, the invariable spray directions of which cannot however ensure an even washing of all the dishes arranged in the washing container.
  • the publication EP 0 487 474 A1 discloses, for example, a dishwashing machine in which the washing liquid containing a detergent substance is nebulised in the washing container via an ultrasound generator.
  • DE 10 2006 055 345 A1 proposes to combine the ultrasound nebuliser known from EP 0 487 474 A1 with a blower to forcedly convey the nebulised washing liquid in the washing container.
  • a blower to forcedly convey the nebulised washing liquid in the washing container.
  • an electric blower involves high manufacturing costs, a reduction of the space available to contain the dishes to be washed, as well as an additional and undesired energy consumption.
  • FR2717670 discloses a prior art dishwashing device which can be considered a closest state of the art for the present invention.
  • object of the present invention is to improve the prior art dishwashing machines and the known washing methods for the dishes, so as to improve the washing efficacy thereof and to reduce the water and electric power consumption thereof.
  • a dishwashing machine is generally indicated with the reference numeral 1.
  • the dishwashing machine 1 comprises at least one washing container 2 adapted to receive dishes 3 to be washed and closable through a port (not shown).
  • a spraying device 4 is provided, for example, a pump 5 with a delivery tube 6, and one or more spraying nozzles 7 and/or spraying rotors 8.
  • the spraying device 4 is configured to spray a non-nebulised washing liquid onto the dishes 3 arranged in the washing container 2.
  • a nebuliser device 9 is further provided to nebulise at least part of the washing liquid with the aim of producing an aerosol flow and to convey such nebulised washing liquid (aerosol flow) onto the dishes 3 contained in the washing container 2.
  • the dishwashing machine 1 further comprises a heating device adapted to heat the washing liquid, for example, an electric resistance 10 arranged in a washing liquid collection tank 11.
  • the collection tank 11, preferably formed in a lower zone of the washing container 2 or under the washing container 2, is connected to the spraying device 4 and, optionally, to the nebulisation device 9 to allow that they withdraw the cold or heated washing liquid necessary for the treatment of the dishes.
  • the dishwashing machine 1 further comprises control means, for example, an electronic control unit 12, so configured as to allow the selection of a dish treatment program amongst a plurality of treatment programs.
  • control means for example, an electronic control unit 12, so configured as to allow the selection of a dish treatment program amongst a plurality of treatment programs.
  • the plurality of treatment programs comprises at least one washing program with at least one washing step in which the heating device 10 is actuated so as to heat the washing liquid, and in which the spraying device 4 is actuated so as to insert the heated washing liquid in the washing container 2, or in other words, so as to spray the heated washing liquid onto the dishes 3 arranged in the washing container 2.
  • the treatment programs also comprise at least one stand-by program with one or more nebulisation steps, in which the nebuliser device 9 is actuated so as to introduce nebulised washing liquid in the washing container 2 (applying it on the dishes 3), and in which during the entire stand-by program, the heating device 10 remains deactivated.
  • control means 12 are configured so as to perform the nebulisation steps of the stand-by program in a time-independent manner from the carrying out of the washing steps of the washing programs.
  • control means 12 are configured so as to deactivate also the spraying device 14 during the carrying out of the stand-by program.
  • the dishes awaiting to be washed are treated with a washing liquid cold aerosol, and in this manner are prepared and kept ready for a successive actual washing with hot washing liquid.
  • This allows always awaiting for the complete filling of the dishwashing machine, independently from the soils and incrustation type, before carrying out the washing program and subjecting the dishes awaiting to washing to an optionally repeated pre-treatment through washing liquid aerosol, so as to improve the washing program efficacy and to reduce the duration, the electric energy and water consumptions thereof.
  • control means are configured so that, during the nebulisation steps of the stand-by program, the nebuliser device 9 is automatically deactivated when the port is opened, and the nebuliser device 9 is automatically reactivated when the previously opened port is closed.
  • this allows carrying out the treatment through washing liquid aerosol with a closed container, increasing the treatment efficacy and minimizing the escape of washing liquid aerosol into the surrounding environment.
  • the control means 12 can further comprise signalling means, for example, LCD, LED display, or the like, which indicate to the user the carrying out of a nebulisation step during the stand-by program.
  • signalling means for example, LCD, LED display, or the like, which indicate to the user the carrying out of a nebulisation step during the stand-by program.
  • the user who wants to load further dishes in the dishwashing machine can decide whether to wait for the end of the treatment with washing liquid aerosol or to temporarily discontinue such treatment by opening the port.
  • control means 12 are so configured as to actuate the nebulisation device 9, during the carrying out of the stand-by program, when the port has remained closed for a predetermined period of time, preferably from 2 to 10 minutes, still more preferably from 5 to 10 minutes, after the last opening thereof.
  • a predetermined period of time preferably from 2 to 10 minutes, still more preferably from 5 to 10 minutes, after the last opening thereof.
  • control means 12 are so configured as to actuate the nebulisation device 9 in a discontinuous manner during the carrying out of the stand-by program.
  • control means 12 deactivate the nebulisation device 9 during a rest step between two consecutive nebulisation steps, in which such rest step can have a duration of from 1 to 8 hours, preferably from 1 to 4 hours, still more preferably from 2 to 4 hours.
  • the nebulisation steps of the stand-by program have a duration of from 1 minute to 1 hour, preferably from 5 minutes to 30 minutes, still more preferably from 5 minutes to 10 minutes.
  • the nebuliser device 9 With the aim of carrying out the nebulisation steps during the stand-by program, it is particularly advantageous to provide the nebuliser device 9 with a piezoelectric aerosol generator 13.
  • Such piezoelectric aerosol generator 13 can be arranged within a nebulisation container 14 connected through a supply tube 15 to the delivery duct 6 of the spraying device 4 and through a dispensing duct or port 16 within the washing container 2 ( Fig. 1 ).
  • the nebulisation container 14 is connected through the supply tube 15 to a duct with air head directly connectable to the water network by the interposition of an electrovalve, for example, the supply duct of a water softener device.
  • the nebulisation device 9 dispensing duct 16 is connected to a sprayer nozzle 7 of the spraying device 4 so that the same sprayer nozzle 7 introduces both the sprays of non-nebulised washing liquid during the washing steps of the washing programs and the aerosol flow of nebulised washing liquid during the nebulisation steps of the stand-by program.
  • a device can be provided within the machine 1 to receive a detergent substance and to bring such detergent substance to the washing liquid intended to be nebulised during the nebulisation steps of the stand-by program.
  • the dishwashing machine 1 By means of the dishwashing machine 1 hereto described, it is possible to carry out a dish treatment method aimed at a water, electric energy, and detergent saving, for a given amount of washed dishes, and to improve the result of washing in the sense of a more complete removal of the food residues from the dishes.
  • the method contemplates to arrange the dishes to be washed in the dishwashing machine, to await for the essentially complete filling of the dishwashing machine with dishes to be washed, and to wash the dishes only when the dishwashing machine results to be essentially filled with dishes, through heating washing liquid and spraying the heated washing liquid onto the dishes.
  • the method provides for nebulisation of washing liquid and the conveyance of the nebulised washing liquid onto the dishes, without heating the washing liquid.
  • the nebulisation of the washing liquid when awaiting for the filling of the dishwashing machine occurs in a time-independent manner from the carrying out of the washing of the dishes.
  • the nebulisation is discontinued when the port is opened during the awaiting for the complete filling of the dishwashing machine and is resumed only after the closure of the port.

Landscapes

  • Washing And Drying Of Tableware (AREA)

Claims (16)

  1. Lave-vaisselle (1), comprenant :
    - au moins un compartiment de lavage (2) adapté pour recevoir de la vaisselle (3) à laver, et pouvant être fermé par l'intermédiaire d'un orifice ;
    - un dispositif de pulvérisation (4) adapté pour pulvériser un liquide de lavage non nébulisé sur la vaisselle (3) disposée dans le compartiment de lavage (2) ;
    - un dispositif de nébulisation (9) adapté pour nébuliser au moins une partie du liquide de lavage et pour acheminer ledit liquide de lavage nébulisé dans le compartiment de lavage (2) ;
    - un dispositif de chauffage (10) adapté pour chauffer le liquide de lavage ;
    - un organe de commande (12) configuré de façon à permettre la sélection d'un programme de traitement de la vaisselle parmi une pluralité de programmes de traitement,
    dans lequel ladite pluralité de programmes de traitement comprend au moins un programme de lavage avec au moins une étape de lavage, durant laquelle ledit dispositif de chauffage (10) est activé de manière à chauffer le liquide de lavage, et ledit dispositif de pulvérisation (4) est activé de manière à pulvériser ledit liquide de lavage chauffé sur la vaisselle (3) dans le compartiment de lavage (2),
    dans lequel lesdits programmes de traitement comprennent au moins un programme d'attente avec une ou plusieurs étapes de nébulisation, durant lesquelles ledit dispositif de nébulisation (9) est activé de manière à introduire le liquide de lavage nébulisé dans le compartiment de lavage (2), et dans lequel ledit dispositif de chauffage (10) est désactivé durant la totalité du programme d'attente,
    caractérisé en ce que ledit organe de commande (12) est configuré de manière à activer ledit dispositif de nébulisation (9), durant l'exécution du programme d'attente, si ledit orifice est resté fermé pendant un laps de temps prédéterminé après sa dernière ouverture.
  2. Lave-vaisselle (1) selon la revendication 1, dans lequel ledit laps de temps prédéterminé est compris entre 2 et 10 minutes ou est compris entre 5 et 10 minutes.
  3. Lave-vaisselle (1) selon la revendication 1 ou 2, dans lequel ledit organe de commande (12) est configuré pour commander l'exécution de ladite ou desdites étapes de nébulisation du programme d'attente d'une manière indépendante, du point de vue du temps, de l'exécution des étapes de lavage dans lesdits programmes de lavage.
  4. Lave-vaisselle (1) selon l'une quelconque des revendications précédentes, dans lequel ledit organe de commande (12) est configuré de manière à désactiver ledit dispositif de pulvérisation (4) durant l'exécution dudit programme d'attente.
  5. Lave-vaisselle (1) selon l'une quelconque des revendications précédentes, dans lequel ledit organe de commande (12) est configuré de manière à ce que, durant lesdites étapes de nébulisation du programme d'attente,
    - ledit dispositif de nébulisation (9) est automatiquement désactivé lorsque ledit orifice est ouvert ; et
    - ledit dispositif de nébulisation (9) est automatiquement réactivé lorsque l'orifice est fermé.
  6. Lave-vaisselle (1) selon l'une quelconque des revendications précédentes, dans lequel l'organe de commande (12) comprend un moyen de signalisation qui indique à l'utilisateur l'exécution de l'étape de nébulisation durant le programme d'attente.
  7. Lave-vaisselle (1) selon l'une quelconque des revendications précédentes, dans lequel l'organe de commande (12) est configuré de manière à activer ledit dispositif de nébulisation (9) de manière discontinue durant l'exécution du programme d'attente.
  8. Lave-vaisselle (1) selon la revendication précédente, dans lequel durant l'exécution du programme d'attente, ledit organe de commande (12) désactive le dispositif de nébulisation (9) durant une étape de repos entre deux étapes consécutives de nébulisation.
  9. Lave-vaisselle (1) selon la revendication précédente, dans lequel ladite étape de repos a une durée comprise entre 1 et 8 heures, de manière préférée entre 1 et 4 heures, de manière davantage préférée entre 2 et 4 heures.
  10. Lave-vaisselle (1) selon l'une quelconque des revendications précédentes, dans lequel lesdites étapes de nébulisation du programme d'attente ont une durée comprise entre 1 minute et 1 heure, de manière préférée entre 5 minutes et 30 minutes, de manière davantage préférée entre 5 minutes et 10 minutes.
  11. Lave-vaisselle (1) selon l'une quelconque des revendications précédentes, dans lequel ledit dispositif de nébulisation (9) comprend un générateur d'aérosol piézoélectrique (13).
  12. Lave-vaisselle (1) selon la revendication précédente, dans lequel ledit générateur d'aérosol piézoélectrique (13) est agencé dans un compartiment de nébulisation (14) connecté par l'intermédiaire d'un tube d'alimentation (15) à un conduit d'acheminement (6) du dispositif de pulvérisation (4) et par l'intermédiaire d'un orifice ou d'un conduit de distribution (16) à l'intérieur du compartiment de lavage (2).
  13. Lave-vaisselle (1) selon la revendication précédente, dans lequel ledit conduit de distribution (16) du dispositif de nébulisation (9) est connecté à une buse de pulvérisation (7) du dispositif de pulvérisation (4) de sorte que la même buse de pulvérisation (7) introduit à la fois les jets de liquide de lavage non nébulisé durant les étapes de lavage des programmes de lavage et le flux d'aérosol de lavage nébulisé durant les étapes de nébulisation du programme d'attente.
  14. Lave-vaisselle (1) selon l'une quelconque des revendications précédentes, comprenant un dispositif pour recevoir une substance détergente, et un organe pour ajouter ladite substance détergente au liquide de lavage devant être nébulisé durant lesdites étapes de nébulisation dudit programme d'attente.
  15. Procédé de traitement de la vaisselle au moyen d'un lave-vaisselle,
    le lave-vaisselle comprenant :
    - au moins un compartiment de lavage (2) adapté pour recevoir de la vaisselle (3) à laver, et pouvant être fermé par l'intermédiaire d'un orifice ;
    - un dispositif de pulvérisation (4) adapté pour pulvériser un liquide de lavage non nébulisé sur la vaisselle (3) disposée dans le compartiment de lavage (2) ;
    - un dispositif de nébulisation (9) adapté pour nébuliser au moins une partie du liquide de lavage et pour acheminer ledit liquide de lavage nébulisé dans le compartiment de lavage (2) ;
    - un dispositif de chauffage (10) adapté pour chauffer le liquide de lavage ;
    - un organe de commande (12) configuré de manière à permettre la sélection d'un programme de traitement de la vaisselle parmi une pluralité de programmes de traitement,
    dans lequel ladite pluralité de programmes de traitement comprend :
    - au moins un programme de lavage avec au moins une étape de lavage, durant laquelle ledit dispositif de chauffage (10) est activé de manière à chauffer le liquide de lavage, et ledit dispositif de pulvérisation (4) est activé de manière à pulvériser ledit liquide de lavage chauffé sur la vaisselle (3) dans le compartiment de lavage (2),
    - au moins un programme d'attente avec une ou plusieurs étapes de nébulisation, durant lesquelles ledit dispositif de nébulisation (9) est activé de manière à introduire le liquide de lavage nébulisé dans le compartiment de lavage (2), et dans lequel ledit dispositif de chauffage (10) est désactivé durant la totalité du programme d'attente,
    le procédé comprenant les étapes consistant à :
    - disposer de la vaisselle à laver dans le lave-vaisselle ;
    - attendre que le lave-vaisselle soit sensiblement rempli de vaisselle à laver ;
    - lorsque le lave-vaisselle est sensiblement rempli de vaisselle, laver la vaisselle en chauffant le liquide de lavage et en pulvérisant le liquide de lavage chauffé sur la vaisselle ;
    - durant l'étape consistant à attendre que le lave-vaisselle soit sensiblement rempli, activer un dispositif de nébulisation (9) du lave-vaisselle afin de nébuliser du liquide de lavage et d'acheminer le liquide de lavage nébulisé sur la vaisselle, sans chauffer le liquide de lavage durant l'attente avant le lavage, le procédé étant caractérisé en ce qu'il utilise ledit organe de commande (12) pour activer ledit dispositif de nébulisation (9), durant l'exécution du programme d'attente, si ledit orifice est resté fermé pendant un laps de temps prédéterminé après sa dernière ouverture.
  16. Procédé selon la revendication 15, comprenant l'étape consistant à exécuter la nébulisation du liquide de lavage en attendant le remplissage d'une manière indépendante, du point de vue du temps, de l'exécution du lavage de la vaisselle.
EP08425795.5A 2008-12-17 2008-12-17 Lave-vaisselle avec nébulisateur et procédé de traitement de la vaisselle Not-in-force EP2201883B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES08425795T ES2743236T3 (es) 2008-12-17 2008-12-17 Máquina lavavajillas con nebulizador y procedimiento de tratamiento de vajillas
EP08425795.5A EP2201883B1 (fr) 2008-12-17 2008-12-17 Lave-vaisselle avec nébulisateur et procédé de traitement de la vaisselle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08425795.5A EP2201883B1 (fr) 2008-12-17 2008-12-17 Lave-vaisselle avec nébulisateur et procédé de traitement de la vaisselle

Publications (2)

Publication Number Publication Date
EP2201883A1 EP2201883A1 (fr) 2010-06-30
EP2201883B1 true EP2201883B1 (fr) 2019-05-29

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EP08425795.5A Not-in-force EP2201883B1 (fr) 2008-12-17 2008-12-17 Lave-vaisselle avec nébulisateur et procédé de traitement de la vaisselle

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EP (1) EP2201883B1 (fr)
ES (1) ES2743236T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014148042A1 (fr) * 2013-03-22 2014-09-25 パナソニック株式会社 Lave-vaisselle
CN106140642A (zh) * 2015-04-16 2016-11-23 苏州旋特自动化科技有限公司 餐具不易破碎的洗涤设备
GB201507289D0 (en) * 2015-04-29 2015-06-10 Reckitt Benckiser Brands Ltd Method of cleaning tableware
DE102017208440B4 (de) * 2017-05-18 2019-05-02 BSH Hausgeräte GmbH Verfahren zum Betreiben einer Geschirrspülmaschine und Geschirrspülmaschine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5202582A (en) * 1991-07-25 1993-04-13 Whirlpool Corporation Electronic control for a dishwasher
US20030168080A1 (en) * 2002-03-07 2003-09-11 Raches Scott D. Fast interrupt of dishwasher hand sensor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9003730D0 (sv) 1990-11-23 1990-11-23 Electrolux Ab Saett att transportera vaetska fraan en vaetskesamling till en yta paa ett foeremaal
FR2717670A1 (fr) * 1994-03-25 1995-09-29 Beauchamp Bruno Dispositif de trempage et de rincage pour lave vaisselle.
JP3988709B2 (ja) * 2003-10-15 2007-10-10 松下電器産業株式会社 食器洗い機
JP4075842B2 (ja) * 2004-04-12 2008-04-16 松下電器産業株式会社 食器洗い機
DE102006055345A1 (de) 2006-11-23 2008-05-29 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspüler mit einem System zur Zerstäubung von Spülflüssigkeit und Verfahren zum Betrieb desselben
DE102007029502B3 (de) * 2007-06-25 2008-10-23 Miele & Cie. Kg Steuerung für einen Geschirrspüler

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5202582A (en) * 1991-07-25 1993-04-13 Whirlpool Corporation Electronic control for a dishwasher
US20030168080A1 (en) * 2002-03-07 2003-09-11 Raches Scott D. Fast interrupt of dishwasher hand sensor

Also Published As

Publication number Publication date
ES2743236T3 (es) 2020-02-18
EP2201883A1 (fr) 2010-06-30

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