EP1458275B1 - Unite de changement de marche, notamment pour un lave-vaisselle - Google Patents

Unite de changement de marche, notamment pour un lave-vaisselle Download PDF

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Publication number
EP1458275B1
EP1458275B1 EP02781329.4A EP02781329A EP1458275B1 EP 1458275 B1 EP1458275 B1 EP 1458275B1 EP 02781329 A EP02781329 A EP 02781329A EP 1458275 B1 EP1458275 B1 EP 1458275B1
Authority
EP
European Patent Office
Prior art keywords
opening
liquid
supply
outlets
section
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.)
Revoked
Application number
EP02781329.4A
Other languages
German (de)
English (en)
Other versions
EP1458275A1 (fr
Inventor
Claus KÖTHER
Roland Ertle
Michael Rosenbauer
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7710317&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1458275(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1458275A1 publication Critical patent/EP1458275A1/fr
Application granted granted Critical
Publication of EP1458275B1 publication Critical patent/EP1458275B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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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
    • A47L15/4214—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
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
    • A47L15/22—Rotary spraying devices
    • A47L15/23—Rotary spraying devices moved by means of the sprays
    • 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

Definitions

  • the invention relates to a dishwasher with a rinsing container with at least two spraying devices, which act in the rinsing container to be cleaned Gut by means of a pumped by a circulation pump liquid, wherein the conveyed liquid flows through a reversing device, and wherein the reversing device at least two outputs for supplying the liquid each having different spraying devices, which can be opened or closed by means of an actuating element such that either one of the outputs or a number of outputs or all outputs are alternately opened and / or closed alternately, wherein the control element is a disc and at least one opening with respect to the cross section of at least one further opening having different cross-section.
  • a reversing device of the aforementioned type in which the actuating element is arranged in a water heater rotary valve, which in the direction of rotation in each case alternately after an open area has a closed area between which there is an unfilled distance.
  • the aforementioned open area is a circular opening.
  • the control of the rotary valve from the DE-198 57 103-A1 For example, with one from the DE-10065571.8 ( DE-100 65 571-A1 ) known actuator means are made, which includes a motor-driven and fixedly connected to the rotary valve cam.
  • a dishwashing machine with a rinsing container with a plurality of spraying devices wherein a reversing device is provided in order to be able to supply rinsing liquor to individual spraying devices in a controlled manner.
  • the conveyed rinsing liquor flows through the reversing device, wherein the reversing device has a plurality of outlets for supplying the liquid to respectively different spraying devices which can be opened or closed by means of an adjusting element such that they respectively open one or more, but not all, exits are closed.
  • the speed of the circulating pump is adjustable, wherein in the DE-199 07 188-A1 is proposed in order to avoid increased noise when changing the spray, to reduce the speed of the circulating pump when changing the spray and where in the already mentioned DE-198 57 103-A1 and also in the DE-199 07 157-A1 is carried out to perform the speed of the circulation pump when operating a lower spray higher than when operating a top sprayer to ensure full utilization of the filled amount of liquid.
  • the electronic control of the speed of the circulating pump is complicated, expensive. At reduced speed, a higher noise than at normal speed is generated.
  • the invention is therefore based on the object to provide a reversing device, with the effects of electronic control of the speed of the circulating pump can be easily replaced and thus the above-mentioned disadvantages of the prior art are avoided.
  • the adjusting element is a disc and has at least one opening with different cross-sections with respect to at least one further opening.
  • the at least one opening with different cross-sections with respect to the at least one further opening has a substantially smaller cross-section.
  • the opening with the substantially smaller cross-section opposite the at least one further opening for supplying the liquid to an upper spraying device is used.
  • the significant reduction in the rotational speed of the circulating pump made according to the prior art serves to reduce the operating point of the circulating pump so much that it reduces the amount of liquid present for circulating through the amount of liquid present in the longer supply line of the liquid to the upper spraying device can be operated without dry running.
  • a replacement of the above-described substantially reducing the speed of the circulating pump according to the prior art is provided in a simple manner.
  • the adjusting element is a disc which has at least one opening with the substantially smaller cross section with respect to the at least one further opening.
  • the embodiment of the reversing device according to the invention as a disk is the simplest way of implementing the reversing device according to the invention.
  • the at least one larger opening essentially serves to supply the liquid to a lower spraying device, but alternatively it can also serve to supply the liquid to the upper spraying device.
  • a substantially larger cross-section with respect to the at least one smaller opening is provided in a simple manner, a replacement of the above-described substantially increasing the speed of the circulating pump according to the prior art.
  • closed areas of the actuating element which bear sealingly against the corresponding outlets in the closed positions, each have a circumferential sealing edge projecting upwards in the direction of the outlets.
  • the smaller opening is surrounded according to a further preferred embodiment of the invention by a towering in the direction of the outputs sealing edge.
  • the reversing device according to the invention is explained in the application for a domestic dishwasher 1.
  • the unspecified household dishwasher 1 has a washing container 2, in the not shown, to be cleaned Good, eg dirty dishes and cutlery, usually in baskets 3, 4 is filled.
  • a washing container 2 in the not shown, to be cleaned Good, eg dirty dishes and cutlery, usually in baskets 3, 4 is filled.
  • two sprayers 5, 6 are arranged, which act on the arranged in the washing container 2, to be cleaned Good with liquid.
  • This liquid usually called rinsing liquor, is conveyed by means of a circulating pump 7 into liquid supply lines 8, 9 to the spraying devices 5, 6.
  • the liquid conveyed in household dishwashers 1 is heated at least in a partial program section of a washing program, for which purpose the household dishwashing machine 1 has a water heater 10 in the exemplary embodiments shown.
  • the subsidized in the household dishwasher 1 liquid is passed from the circulation pump 7 to an inlet nozzle 11 of the water heater 10 and through the water heater 10.
  • the instantaneous water heater 10 has at least two outlet ports, namely a number of outlet ports corresponding to the number of spraying devices or groups of spraying devices operated simultaneously, two outlet ports 12, 13 in the embodiments shown. From the outlet ports 12, 13 of the water heater 10, the liquid over the already mentioned liquid supply lines 8, 9 the respective different spray means 5, 6 fed.
  • the necessary for heating the liquid in the water heater 10 heating elements are designated 16.
  • the pumped liquid flows through a reversing device 20, which is arranged in the illustrated embodiments in the water heater 10, including the pumped liquid from the circulation pump 7 to an inlet nozzle 11 of the water heater 10, which is thus also the inlet nozzle of the reversing device 20, is passed.
  • the reversing device 20 has at least two outlets - in the embodiment shown, the two outlet ports 12, 13 of the water heater 10 - for supplying the liquid to each different spray devices 5, 6.
  • outlet ports 12, 13 can be opened or substantially closed by means of an actuating element 21, 21 'of the in the embodiments shown in the flow heater 10, upstream of the outlet port 12, 13 Um Kunststoff 20 that either one of the outlet port 12, 13 or a number of outlet ports 12, 13 or all outlet ports 12, 13 alternately one after the other and / or constantly open or substantially closed.
  • an actuating element 21, 21 'of the in the embodiments shown in the flow heater 10, upstream of the outlet port 12, 13 Um in the embodiments shown as a disk formed adjusting element 21, 21 'of the reversing device 20 in the flow direction in front of each outlet nozzle 12, 13 upstream outputs 14, 15 of the flow heater 10 is arranged.
  • the actuator 21 in the preferred embodiment shown FIG. 3 and 4 can each one of the outputs 14, 15 of the water heater 10 are closed and by the actuator 21 'in the shown further embodiment according to FIG. 5
  • the two outputs 14, 15 can be either alternately one after the other and / or constantly open or substantially closed.
  • This at least one opening 22 with a different cross section has a substantially smaller cross section than the cross section of the at least one further opening 23.
  • the opening 22 is used with the much smaller cross-section - referred to below as smaller opening 22 - opposite the at least one further opening 23 - hereinafter referred to as larger opening 23 - for supplying the liquid to an upper spraying device 5.
  • Die nach Stand The technology made significant reduction in the speed of the circulation pump serves to lower the operating point of the circulation pump 7 so far that with the present in the longer supply of liquid to the upper spray 5 liquid amount - the so-called dead water - reduced to circulate existing amount of liquid without dry running can be operated.
  • the openings 22, 23 are in the embodiments shown at right angles to each other on an in FIG. 3 arranged with dash-dotted lines indicated circle with the same radius. With the arrangement of the openings on the same radius at right angles to each other a very simple way of controlling the reversing device is created.
  • the at least one larger opening 23 serves to supply the liquid to a lower one Spraying device 6, although this can also serve as an alternative to the supply of liquid to the upper spray device 5 in special program sequences.
  • the supply of the liquid to a lower spray 6 associated opening 15 with the much larger cross-section relative to the at least one smaller opening 22 is a simple way to replace the above described substantially increase the speed of the circulating pump of the prior art.
  • FIG. 5 shown another embodiment serve two on the adjusting element 21 '- the disc - opposite, larger openings 23, 24 for simultaneous supply of liquid to the lower sprayer 6 and the upper spray device fifth
  • the closed areas of the actuating element 21, 21 '- the disc - sealingly abut in the closed positions at the corresponding outputs 14, 15 are designated 25 and each have a circumferential, in the direction of the outputs 14, 15 projecting sealing edge 26 ,
  • the smaller opening 22 is surrounded by such a sealing edge 26 (see FIG. 3 ).
  • the drive unit 30 is a motor 31, for example an electric motor, with an in FIG. 2 only schematically illustrated gear 32, such as a gear transmission.
  • the control element 21 is connected to the transmission 32 by means of a shaft 33, which is guided in the housing of the flow heater 10.
  • the engine 30 and the transmission 32 are seated by a lid 18 seated on a raised edge 17 of the water heater 10 protected.
  • the cover 18 also has bearings for the gear 32, of which only a raised bearing pin 19 is shown as a bearing for the shaft 33.
  • the connection of the motor 31 of the drive means 30 is introduced to the supply voltage from an unspecified program control unit of the domestic dishwasher 1 and the actuator 21st starts off as with an arrow in FIG. 4 indicated to turn clockwise.
  • one of the closed areas 25 of the actuating element 21 is rotated until it rests sealingly on the outlet 15 and the smaller opening 22 lies above the outlet 14. This corresponds to the position of the actuating element 21 in FIG FIG. 4b ,
  • the supply of the liquid flowing through the flow heater 10 in this case is interrupted to the lower spray 6 and the supply to the upper spray 5 is opened due to the smaller opening 22 with less liquid passage.
  • the reversing device 20 remains for a scheduled in the program action exposure time, in the embodiment shown about a minute, wherein by means of a sensor not described in detail, for. B. in the DE-10065571.8 ( DE-100 65 571-A1 ), the rotational position of the actuating element 21 is detected and switched off via the program control device for a predetermined duration of the motor 31, so that the respective rotational position of the actuating element 21 is held over this period.
  • the motor 31 then continues to rotate, whereby after a rotation of the actuating element 21 to 90 ° in the exemplary embodiment one of the closed areas 25 sealingly rests on the outlet 14 and the larger opening 23 is above the outlet 15.
  • the adjusting element 21 is rotated until one of the closed regions 25 of the actuating element 21 rests sealingly on the outlet 15 and the larger opening 23 is above the exit 14. This corresponds to the position of the actuating element 21 in FIG. 4a ,
  • the supply of the liquid flowing through the flow heater 10 in this case is interrupted to the lower sprayer 6 and the supply to the upper sprayer 5 due to the larger opening 23 with unrestricted liquid passage opened.
  • the reversing device 20 remains for a provided in the program flow exposure time, in the embodiment shown about one minute.
  • the reversing device 20 remains in the illustrated embodiment about a minute, which detects the rotational position of the actuating element 21 by means of a sensor not described in detail and switched off via the program control device for a predetermined period of the motor 31, so that the respective rotational position of the actuating element 21 ' held over this period.
  • the above sensor is used to operate the motor 31 only until the smaller Opening 22 of the actuating element 21 'has the output 14 for the outlet port 12 to the liquid supply line 8 to the upper spray device 5 only partially opened, see FIG. 5d , and then retain this position over the entire wash program, since the motor 31 is no longer operated.
  • a so-called full upper basket purging is not provided in this further embodiment.
  • the above-described sensor would be used to operate the motor 31 only until the smaller opening 22 of the actuating element 21 'the output 15 for the outlet nozzle thirteenth to the liquid feed 9 to the lower spray 6, see FIG. 5c , and then retain this position over the entire wash program, since the motor 31 is no longer operated.
  • the position of the openings 23 and 24 on the adjusting element 21 'at both outlets 14, 15 can be determined again by means of the above-described sensor technology (see FIG. 5b ) and maintain this position over the complete wash program, as the motor 31 stops running. The filling quantity with rinsing liquid is increased accordingly.

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (7)

  1. Lave-vaisselle (1) avec une cuve de lavage (2) avec au moins deux dispositifs de pulvérisation qui alimentent les éléments à laver disposés dans la cuve de lavage (2) au moyen d'un fluide mû par une pompe de recirculation (7), dans lequel le fluide mû traverse un dispositif de changement de marche (20), et dans lequel le dispositif de changement de marche (20) présente au moins deux sorties (14,15) pour l'alimentation de dispositifs de pulvérisation respectifs différents (5, 6) par le fluide, lesquelles sorties peuvent être ouvertes resp. fermées par un élément de réglage (21, 21') de sorte que soit respectivement l'une des sorties soit un certain nombre de sorties ou toutes les sorties sont ouvertes resp. fermées alternativement l'une après l'autre et/ou en permanence, caractérisé en ce que l'élément de réglage (21, 21') est un disque et présente au moins une ouverture (22) avec, face à la section transversale, au moins une ouverture supplémentaire (23, 24) de section transversale différente.
  2. Lave-vaisselle selon la revendication 1, caractérisé en ce que l'au moins une ouverture (22) de section différente par rapport à la section de l'au moins une ouverture supplémentaire (23, 24) présente une section nettement moindre.
  3. Lave-vaisselle selon la revendication 1 ou 2, caractérisé en ce que l'ouverture (22) présentant la section nettement moindre par rapport à l'au moins une ouverture supplémentaire (23, 24) sert à alimenter un dispositif de pulvérisation supérieur (5) en fluide.
  4. Lave-vaisselle selon l'une des revendications 1 à 3, caractérisé en ce que l'au moins une plus grande ouverture (23) sert essentiellement à alimenter un dispositif de pulvérisation inférieur (6) par le fluide, mais peut de façon alternative également servir à alimenter un dispositif de pulvérisation supérieur (5) par le fluide.
  5. Lave-vaisselle selon l'une des revendications 1 à 4, caractérisé en ce que deux plus grandes ouvertures (23, 24) opposées sur le disque servent à alimenter simultanément un dispositif de pulvérisation supérieur (5) et un dispositif de pulvérisation inférieur (6) par le fluide.
  6. Lave-vaisselle selon l'une des revendications 1 à 5, caractérisé en ce que des zones fermées (25) de l'élément de réglage (21, 21') qui, en positions de fermeture, sont ajustées de manière étanche aux sorties (14, 15) correspondantes, présentent respectivement un bord périphérique étanche (26) élancé en direction des sorties (14, 15).
  7. Lave-vaisselle selon l'une des revendications 1 à 6, caractérisé en ce que l'ouverture moindre (22) est entourée par un bord périphérique étanche (26) élancé en direction des sorties (14, 15).
EP02781329.4A 2001-12-21 2002-11-25 Unite de changement de marche, notamment pour un lave-vaisselle Revoked EP1458275B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10163181A DE10163181A1 (de) 2001-12-21 2001-12-21 Umsteuereinrichtung, insbes. für eine Geschirrspülmaschine
DE10163181 2001-12-21
PCT/EP2002/013255 WO2003053210A1 (fr) 2001-12-21 2002-11-25 Unite de changement de marche, notamment pour un lave-vaisselle

Publications (2)

Publication Number Publication Date
EP1458275A1 EP1458275A1 (fr) 2004-09-22
EP1458275B1 true EP1458275B1 (fr) 2013-10-23

Family

ID=7710317

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02781329.4A Revoked EP1458275B1 (fr) 2001-12-21 2002-11-25 Unite de changement de marche, notamment pour un lave-vaisselle

Country Status (9)

Country Link
US (1) US20050011546A1 (fr)
EP (1) EP1458275B1 (fr)
JP (1) JP4625256B2 (fr)
KR (1) KR20040068594A (fr)
CN (1) CN100522041C (fr)
AU (1) AU2002349044A1 (fr)
DE (1) DE10163181A1 (fr)
ES (1) ES2434492T3 (fr)
WO (1) WO2003053210A1 (fr)

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ITBO20030610A1 (it) * 2003-10-17 2005-04-18 Premark Feg Llc Macchina lavastoviglie con versatilita' di posizione.
DE10358970A1 (de) † 2003-12-16 2005-07-21 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit Zwischenpumpbetrieb
DE102004004104A1 (de) * 2003-12-23 2005-07-28 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit alternierendem Pumpenbetrieb
ITUD20040103A1 (it) * 2004-05-20 2004-08-20 Invensys Controls Italy Spa Dispositivo distributore/riscaldatore per
EP1723888A1 (fr) * 2005-05-17 2006-11-22 Bonferraro S.p.A. Lave-vaisselle avec distribution automatique alternée de l'eau
DE102006021954B3 (de) * 2006-05-10 2007-09-13 Miele & Cie. Kg Verfahren zur Durchführung eines Spülprogramms in einer Spülmaschine
KR100917826B1 (ko) 2007-10-22 2009-09-18 엘지전자 주식회사 식기세척기
DE102007060196A1 (de) * 2007-12-14 2009-06-18 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine
IT1399413B1 (it) * 2010-04-08 2013-04-16 Bitron Spa Macchina lavastoviglie con pozzetto perfezionato
JP5570359B2 (ja) * 2010-09-10 2014-08-13 キヤノンアネルバ株式会社 ロータリージョイント、及びスパッタリング装置
ITTO20110162A1 (it) 2011-02-25 2012-08-26 Indesit Co Spa Selettore per una macchina di lavaggio domestica e macchina di lavaggio domestica provvista di tale selettore
US10638910B2 (en) 2013-06-21 2020-05-05 Whirlpool Corporation Method of variable filtration in a dishwasher
US20150157185A1 (en) * 2013-12-09 2015-06-11 Whirlpool Corporation Methods and apparatus to heat liquids in dishwashers
EP4309561A1 (fr) 2022-07-22 2024-01-24 Aweco Polska Appliance Sp. z o.o. sp. k Machine domestique dotée d'une unité de distribution de fluide

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Also Published As

Publication number Publication date
JP2005512659A (ja) 2005-05-12
US20050011546A1 (en) 2005-01-20
WO2003053210A1 (fr) 2003-07-03
ES2434492T3 (es) 2013-12-16
CN100522041C (zh) 2009-08-05
KR20040068594A (ko) 2004-07-31
CN1606419A (zh) 2005-04-13
DE10163181A1 (de) 2003-07-10
AU2002349044A1 (en) 2003-07-09
EP1458275A1 (fr) 2004-09-22
JP4625256B2 (ja) 2011-02-02

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