EP1215989B1 - Dispositif pour surveiller le fonctionnement d'un dispositif rotatif, distribuant un liquide - Google Patents

Dispositif pour surveiller le fonctionnement d'un dispositif rotatif, distribuant un liquide Download PDF

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Publication number
EP1215989B1
EP1215989B1 EP00960635A EP00960635A EP1215989B1 EP 1215989 B1 EP1215989 B1 EP 1215989B1 EP 00960635 A EP00960635 A EP 00960635A EP 00960635 A EP00960635 A EP 00960635A EP 1215989 B1 EP1215989 B1 EP 1215989B1
Authority
EP
European Patent Office
Prior art keywords
collecting chamber
dishwashing machine
liquid
sensor
level
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
EP00960635A
Other languages
German (de)
English (en)
Other versions
EP1215989A1 (fr
Inventor
Michael Rosenbauer
Bernd Schessl
Angelo Canova
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
Elbi International SpA
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Elbi International SpA
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 BSH Bosch und Siemens Hausgeraete GmbH, Elbi International SpA filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1215989A1 publication Critical patent/EP1215989A1/fr
Application granted granted Critical
Publication of EP1215989B1 publication Critical patent/EP1215989B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0049—Detection or prevention of malfunction, including accident prevention
    • 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
    • A47L15/4246—Details of the tub
    • 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
    • A47L15/4251—Details of the casing
    • A47L15/4257—Details of the loading door
    • 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
    • A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • A47L15/4409—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants by tipping containers or opening their lids, e.g. with the help of a programmer
    • 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
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/09—Water level
    • 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
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/30—Variation of electrical, magnetical or optical quantities
    • 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
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/26—Indication or alarm to the controlling device or to the user
    • 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
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/32—Stopping or disabling machine operation, including disconnecting the machine from a network, e.g. from an electrical power supply

Definitions

  • the invention relates to a device for monitoring the function of a rotating, Liquid dispensing device.
  • Rotating, liquid dispensing devices can be, for example, lawn sprinklers or spray arms of a dishwasher, etc. Should such a Device in the function to be disturbed, e.g. stay with lawn sprinklers one limited area of the lawn to be wetted with an unnecessarily large amount of water and the rest of the enticing lawn does not rain, which is on one side due to over-watering and on the other hand due to non-irrigation leads to the death of the lawn and can with spray arms of dishwashers the items to be cleaned are not uniformly supplied with cleaning liquid, which leads to a poor cleaning result.
  • a monitoring device for the rotational movement a spray arm of a dishwasher in which exclusively the rotation of the spray arm is controlled, but not the release of liquid.
  • the invention is therefore based on the object, in a simple manner, a device to create, with which the entire function of a rotating, liquid releasing Device can be monitored.
  • This object is achieved in that approximately in the by to monitoring device with liquid acted upon area at least one Collection chamber with at least one inlet opening and at least one outlet opening and is arranged with at least one sensor, wherein the output opening has a smaller cross-section with respect to the inlet opening and wherein the sensor a level sensor is that passes signals to a device for evaluation.
  • the collecting chamber in the inventive device filled with the liquid via the inlet opening and through the outlet opening again deflated, so that the sensor has a constantly fluctuating filling level in the collecting chamber Determines what the evaluation device in a simple manner as ongoing Function of the liquid dispensing device can be interpreted. Should the Rotation and / or the delivery of the liquid does not take place, whether the collection chamber is applied or not, the sensor is a constantly fluctuating filling level in the collecting chamber was not detected, which then from the evaluation device simple fashion interpreted as dysfunction of the fluid-dispensing device can be. If the collection chamber is not fluid, e.g.
  • the sensor detects a constantly empty collecting chamber, the collecting chamber should but constantly exposed to liquid when standing to be monitored device be detected by the sensor a constantly completely filled collection chamber. In both cases, no constantly fluctuating filling level is measured, so that the evaluation device in a simple manner a malfunction the fluid-emitting device detected.
  • the invention is on simple way of creating a device with which the whole function of a rotating, fluid-emitting device can be monitored.
  • the cross section of the inlet opening and the outlet opening and the volume of the collecting chamber are dimensioned so that Under normal operating conditions of the equipment to be monitored the liquid level in the collecting chamber periodically by a predetermined reference level commutes.
  • the device according to the invention is still functionally reliable, because a periodically oscillating liquid level is even easier to evaluate.
  • the level sensor is an optical one Sensor, which simplifies the determination of the level in the collecting chamber is reached.
  • the sensor part of the optical Sensors a V-angle shape of a substantially transparent vertical wall of the Collecting chamber, with the V-angle shape with the tip inside the collecting chamber protrudes.
  • optical Sensors for liquid level measurement become the device according to the invention even more reliable.
  • the device is preferably in a dishwasher for monitoring the function arranged at least one rotating, spraying liquid spraying spray arm, whereby the safe cleaning effect of the dishwasher on simple Way is guaranteed.
  • the device is arranged in a side wall of the dishwasher, thus achieving a simplification of the installation of the device according to the invention becomes.
  • the device is arranged in a door of the dishwasher.
  • the Door of the dishwasher are usually installed a variety of aggregates, so that the installation of another unit means no great expense.
  • the device is arranged in a detergent adding unit.
  • the signals of the level sensor in case of failure on the device for the evaluation of the change in the control and / or the interruption of a Program sequence and / or to activate an optical and / or acoustic Warning signal, whereby deterioration of the cleaning result by the malfunction the spray arm can be avoided as much as possible.
  • the device according to the invention is for monitoring the function of a rotating, fluid-emitting device 4 in an in Fig. 1 partially, schematically illustrated, unspecified described dishwasher 1 with a closable by a door 3 rinse tank 2 installed, creating a ensures safe cleaning effect of the dishwasher 1 in a simple manner is ..
  • the washing container 2 is at least one with a plurality of spray nozzles. 5 equipped spray arm 4 - the rotating liquid dispensing device - whose function is to be monitored with the device according to the invention.
  • the spray arm 4 is connected to a circulating pump, not shown, the rinsing liquid supplied, which is taken from a reservoir, which is located on the ground of the washing compartment 2 is located.
  • a detergent adding unit 6 for detergent such as cleaner and rinse aid.
  • This cleaner adding unit 6 is in the one to be monitored by the device to be monitored. the spray arm 4 - liquid applied area and is periodically taken from the dispensed from the spray arm 4 rinsing liquid.
  • the detergent adding unit 6 consists of a Upper part 7 at one end there is a cleaner receptacle 8 to the is determined to include a dose of detergent and in the embodiment by a sliding lid 9 is closed. In the illustrated embodiment is continue on the upper part 7 of the detergent adding unit 6 at its other end Hinged lid 10 for closing an opening 11 of a container 12 attached to the intended to receive a certain amount of rinse aid.
  • the inventive device is in the described embodiment in the Cleaner addition unit 6 is arranged.
  • installation in a dishwasher 1 already existing aggregate is the installation of the device according to the invention in the dishwasher 1 without further effort possible.
  • the hinged lid 10 is in a plurality of substantially vertical and parallel Provided openings 13.
  • the openings show 13 in the direction of a front wall 7a of the upper part of the detergent adding unit 6, in FIG the number of substantially horizontal inlet openings 14 of the invention Device are arranged.
  • a Collecting point 16 which is formed by a pair of lateral and inclined ribs 17, which converge below the inlet openings 14 and connected to each other are.
  • a vertical Plate 18 which is raised relative to the plane of the front wall 7a.
  • a collecting chamber 19 of the invention Device arranged in the lower area with a reduced Output opening is indicated at 20.
  • the in the front wall 7a of the Upper part 7 realized inlet openings 14 are on the upper part of the collecting chamber 19 directed (see Figures 4 and 5).
  • a sensor 21 which is designed as a level sensor, arranged, the signals to a device, not shown, for evaluation passes.
  • the sensor is designed as an optical sensor, wherein an electrical level sensor 21 is used which is complete in FIGS. 4 and 5 5 and includes a lead 22 (FIG. 5) having a pair of diodes, one diode as a transmitter for emitting an optical radiation and the other as a receiver acts. Both diodes are in the direction of a substantially transparent vertical wall 23 of the collecting chamber 19 directed.
  • this wall 23 is a sensor part of the optical Sensor 21 as a V-angle mold 24 realized that as a prism for ev refraction of the optical Radiation serves and with the tip into the interior of the collecting chamber 19 protrudes.
  • the feeder 22 is connected to the device, not shown, for evaluation, z-B. in one Not described program control device of the dishwasher 1, connected.
  • Spray arm 4 dispensed rinse liquid periodically to the cleaner addition unit 6 and passes through the openings 13 of the hinged lid 10 in the collection point 16th and from there passes through the collecting point 16 removed amount of washing liquid in the device according to the invention and through the inlet openings 14 in the collecting chamber 19.
  • the outlet opening 20 of the device according to the invention has a relation to the Inlet opening 14 smaller cross section on and that is the cross section of the inlet opening 14 and the outlet opening 20 and the volume of the collecting chamber 19 are dimensioned are that under normal operating conditions of the spray arm 4 the Liquid level in the collecting chamber 19 periodically by a predetermined reference level commutes.
  • the sensor 21 provides an electrical signal regarding the temporal evolution of the Liquid levels in the collecting chamber 19.
  • the signal provided by the sensor 21 periodically shifts, just as the liquid level in the collecting chamber 19 oscillates.
  • the spray arm 4 is blocked, e.g. as a result of the movement and or displacement of crockery, that hears from the level sensor delivered signal 21 to commute.
  • this collecting chamber 19 is constantly filled to the level L, which with the overflow level determined by the upper edge of the plate 18 in the collection point 16 matches.
  • the collecting chamber is emptied 19 through the drain opening 20th
  • the blocking conditions of the spray arm are detected by the base signal supplied by the level sensor 21.
  • These Signals of the level sensor 21 lead in the illustrated embodiment in case of failure in the program controller associated with the means for evaluation for modification in the control and / or interruption of a program flow and / or for Activation of an optical and / or acoustic warning signal.
  • inventive device for monitoring the function of a rotating, liquid-dispensing device - the spray arm 4 of the dishwasher 1 - also on another side wall of the dishwasher 1 or elsewhere in the washing container 2 of the dishwasher 1 in the liquid be arranged area acted upon.
  • others can as well Level sensors are used instead of the one described here.
  • a device is provided in a simple manner with which the monitored the entire function of a rotating, liquid-emitting device can be.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Detergent Compositions (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Centrifugal Separators (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Claims (9)

  1. Dispositif pour surveiller le fonctionnement d'un dispositif (4) rotatif distribuant un liquide, caractérisé en ce qu'environ dans la zone aspergée par du liquide du dispositif (4) à surveiller est disposé au moins un bac de réception (19) muni d'au moins une ouverture d'entrée (14) et d'au moins une ouverture de sortie (20) et d'au moins un capteur (21), son ouverture de sortie (20) présentant une section transversale plus petite par rapport à l'ouverture d'entrée (14) et le capteur (21) étant une sonde de niveau qui transmet des signaux vers un dispositif pour analyse.
  2. Dispositif selon la revendication 1, caractérisé en ce que la section transversale de l'ouverture d'entrée (14) et de l'ouverture de sortie (20) ainsi que le volume du bac de réception (19) sont de dimensions telles que dans des conditions normales de fonctionnement du dispositif (4) à surveiller, le niveau du liquide dans le bac de réception (19) oscille à intervalles par rapport à un niveau de référence déterminé au préalable.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le capteur de niveau (21) est un capteur optique.
  4. Dispositif selon la revendication 3, caractérisé en ce que la partie de la sonde du capteur optique (21) a une forme d'un angle en V (24) dans une paroi verticale (23) essentiellement transparente du bac de réception (19), l'angle en V (24) faisant saillie avec la pointe vers l'intérieur du bac de réception (19).
  5. Lave-vaisselle (1) caractérisé en ce que le lave-vaisselle comprend un dispositif selon l'une quelconque des revendications 1 à 4, le dispositif pour surveiller le fonctionnement d'au moins un bras d'aspersion (4) rotatif vaporisant un liquide de lavage est disposé dans le lave-vaisselle.
  6. Lave-vaisselle selon la revendication 5, caractérisé en ce que le dispositif est disposé dans une paroi latérale du lave-vaisselle (1).
  7. Lave-vaisselle selon l'une quelconque des revendications 5 à 6, caractérisé en ce que le dispositif est disposé dans une porte (3) du lave-vaisselle (1).
  8. Lave-vaisselle selon l'une quelconque des revendications 5 à 7, caractérisé en ce que le dispositif est disposé dans une unité de distribution du produit de lavage (6).
  9. Dispositif selon l'une quelconque des revendications 1 à 4 ou lave-vaisselle selon l'une quelconque des revendications 5 à 8, caractérisé en ce que les signaux du capteur de niveau (21) en cas d'erreur mènent par le dispositif d'analyse à la modification dans la commande et/ou à l'interruption d'un déroulement de programme et/ou à l'activation d'un signal d'avertissement optique et/ou acoustique.
EP00960635A 1999-09-16 2000-09-08 Dispositif pour surveiller le fonctionnement d'un dispositif rotatif, distribuant un liquide Expired - Lifetime EP1215989B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITTO990789 1999-09-16
IT1999TO000789A IT1310723B1 (it) 1999-09-16 1999-09-16 Dispositivo per rilevare le condizioni di funzionamento di almenouna girante di spruzzatura di una macchina lavastoviglie
PCT/EP2000/008809 WO2001019229A1 (fr) 1999-09-16 2000-09-08 Dispositif pour surveiller le fonctionnement d'un dispositif rotatif, distribuant un liquide

Publications (2)

Publication Number Publication Date
EP1215989A1 EP1215989A1 (fr) 2002-06-26
EP1215989B1 true EP1215989B1 (fr) 2003-05-14

Family

ID=11418067

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00960635A Expired - Lifetime EP1215989B1 (fr) 1999-09-16 2000-09-08 Dispositif pour surveiller le fonctionnement d'un dispositif rotatif, distribuant un liquide

Country Status (8)

Country Link
US (1) US6761179B2 (fr)
EP (1) EP1215989B1 (fr)
AT (1) ATE240074T1 (fr)
DE (1) DE50002209D1 (fr)
ES (1) ES2199177T3 (fr)
IT (1) IT1310723B1 (fr)
TR (1) TR200200468T2 (fr)
WO (1) WO2001019229A1 (fr)

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CN101947091A (zh) * 2009-07-09 2011-01-19 Bsh博世和西门子家用器具有限公司 具有喷射装置的餐具洗涤机

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EP1459675A1 (fr) * 2003-03-21 2004-09-22 Bonferraro S.p.A. Lave-vaisselle avec groupe capteurs dans la cuve
ITTO20030117U1 (it) * 2003-07-21 2005-01-22 Elbi Int Spa Dispositivo erogatore di detersivo in polvere per una macchina lavasto viglie.
EP1554970B1 (fr) * 2004-01-15 2011-08-24 Electrolux Home Products Corporation N.V. Dispositif et procédé d'apport des agents de nettoyage dans un appareil ménager de conduisant du liquide
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ES2377302B1 (es) * 2009-07-09 2013-02-01 BSH Electrodomésticos España S.A. Máquina lavavajillas con un dispositivo rociador.
DE102009044960A1 (de) * 2009-09-24 2011-03-31 Henkel Ag & Co. Kgaa Verfahren und System zur Detektion der Rotation eines Sprüharms in einer Geschirrspülmaschine
DE102010042579A1 (de) * 2010-10-18 2012-04-19 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit zumindest einem rotierbaren Sprüharm
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KR101998571B1 (ko) * 2013-05-21 2019-07-10 삼성전자주식회사 노즐 어셈블리 및 이를 구비하는 식기세척기
KR102355623B1 (ko) 2015-06-19 2022-01-26 엘지전자 주식회사 식기세척기 및 그 제어방법
DE102016112440A1 (de) * 2016-07-07 2018-01-11 Sanhua Aweco Appliance Systems Gmbh Geschirrspüler mit Sensoreinheit zur Bestimmung einer Drehbewegung eines Sprüharms
KR102429096B1 (ko) * 2018-02-08 2022-08-03 엘지전자 주식회사 식기세척기와 그의 제어방법
US11484183B2 (en) 2019-09-30 2022-11-01 Midea Group Co., Ltd. Dishwasher with image-based object sensing
US11191416B2 (en) 2019-09-30 2021-12-07 Midea Group Co., Ltd. Dishwasher with image-based position sensor
US11259681B2 (en) 2019-09-30 2022-03-01 Midea Group Co., Ltd Dishwasher with image-based diagnostics
US11399690B2 (en) 2019-09-30 2022-08-02 Midea Group Co., Ltd. Dishwasher with cam-based position sensor
US11464389B2 (en) * 2019-09-30 2022-10-11 Midea Group Co., Ltd. Dishwasher with image-based detergent sensing
US11202550B2 (en) 2019-11-20 2021-12-21 Midea Group Co., Ltd. Dishwasher thermal imaging system
CN112369987A (zh) * 2020-10-29 2021-02-19 上海明略人工智能(集团)有限公司 用于检测喷淋液量分布的方法及装置、设备

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101947091A (zh) * 2009-07-09 2011-01-19 Bsh博世和西门子家用器具有限公司 具有喷射装置的餐具洗涤机
CN101947091B (zh) * 2009-07-09 2016-05-04 Bsh家用电器有限公司 具有喷射装置的餐具洗涤机

Also Published As

Publication number Publication date
TR200200468T2 (tr) 2002-08-21
ATE240074T1 (de) 2003-05-15
IT1310723B1 (it) 2002-02-22
DE50002209D1 (de) 2003-06-18
ITTO990789A0 (it) 1999-09-16
US6761179B2 (en) 2004-07-13
ES2199177T3 (es) 2004-02-16
ITTO990789A1 (it) 2001-03-16
WO2001019229A1 (fr) 2001-03-22
US20020185162A1 (en) 2002-12-12
EP1215989A1 (fr) 2002-06-26

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