EP4072391A1 - Lave-vaisselle domestique et procédé - Google Patents

Lave-vaisselle domestique et procédé

Info

Publication number
EP4072391A1
EP4072391A1 EP20817326.0A EP20817326A EP4072391A1 EP 4072391 A1 EP4072391 A1 EP 4072391A1 EP 20817326 A EP20817326 A EP 20817326A EP 4072391 A1 EP4072391 A1 EP 4072391A1
Authority
EP
European Patent Office
Prior art keywords
closure
spray
household dishwasher
fresh water
hydraulic circuit
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.)
Granted
Application number
EP20817326.0A
Other languages
German (de)
English (en)
Other versions
EP4072391B1 (fr
Inventor
Bernd Eisenbart
Vitus HÖRMANN
Bernd KRÄNZLE
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 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 BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP4072391A1 publication Critical patent/EP4072391A1/fr
Application granted granted Critical
Publication of EP4072391B1 publication Critical patent/EP4072391B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—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
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • 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
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4219—Water recirculation
    • 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
    • A47L2401/06—Water supply, circulation or discharge information

Definitions

  • the present invention relates to a household dishwasher and a method for calibrating such a household dishwasher.
  • the motor current of a circulation pump of the dishwasher can be used.
  • this requires calibration of the dishwasher during commissioning, which is carried out with a defined hydraulic state.
  • a defined hydraulic state is a state in which the intensive spray zone is deactivated. That is, in order to start the dishwasher, it is necessary for a user of the dishwasher to manually deactivate the intensive spray zone.
  • a household dishwasher with a washing container to take on items to be washed, a hydraulic circuit for circulating fresh water and / or washing liquor in the washing container, a pumping device for applying the hydraulic circuit with the fresh water and / or the washing liquor and one made of a water-soluble material Closure suggested.
  • the closure couples the household dishwasher machine part of the hydraulic circuit from the pumping device. The closure dissolves in the fresh water and / or the rinsing solution during and / or after the calibration process has ended.
  • the washing container is preferably cuboid.
  • the washing container can be closed with the aid of a door hinged on the washing container such that it can pivot.
  • washware receptacles for example a lower basket, an upper basket and a cutlery drawer, can be provided in the washing container. Wash ware can be accommodated in the wash ware receptacles, and fresh water and / or wash liquor are applied to them with the aid of the hydraulic circuit.
  • washing liquor is to be understood as meaning water mixed with a cleaning agent and / or dirt particles detached from the items to be washed.
  • the pumping device is preferably a circulation pump of the domestic dishwasher.
  • the pumping device can in particular be provided on a pump sump of the washing container.
  • the pump sump is arranged on a bottom of the washing container.
  • the fact that the pumping device "acts on" the hydraulic circuit with fresh water and / or rinsing liquor means in the present case that the pumping device pumps the fresh water and / or the rinsing liquor through the hydraulic circuit.
  • the Pum p worn can, but does not have to, be part of the hydraulic circuit.
  • the calibration process is preferably carried out when the domestic dishwasher is started up.
  • the fact that part of the hydraulic circuit is "decoupled" from the pumping device is to be understood in the present case in particular as the fact that the closure fluidically separates part of the hydraulic circuit from the pumping device. This means that the pumping device cannot pump any fresh water and / or rinsing solution into this part of the hydraulic circuit.
  • the closure is preferably after completion the calibration process is completely resolved. However, residues of the closure can only dissolve completely in subsequent wash cycles.
  • the spray zones can, for example, be spray arms mounted in or on the washing compartment.
  • the spray zones can, however, also comprise one or more so-called intensive spray zones, which are arranged, for example, on a washware receptacle as explained above.
  • the closure is suitable for decoupling a spray zone designed as a spray arm or as an intensive spray zone from the pumping device.
  • the closure can also decouple several of the spray zones from the pumping device.
  • the at least one spray zone which is decoupled from the pumping device with the aid of the closure, is an intensive spray zone.
  • the intensive spray zone can also be referred to as the intensive rinse zone.
  • the intensive spray zone can, as mentioned above, be arranged on one of the items to be washed, for example.
  • the intensive spray zone can, however, also be positioned on the side walls of the rinsing container, on a ceiling of the same or on a rear wall of the washing container.
  • the spray zones which are not decoupled from the pumping device with the aid of the closure are preferably spray arms. However, this is not mandatory.
  • the at least one spray zone which is decoupled from the pump device with the aid of the closure, and a further spray zone are connected to the pump device with the help of a common feed line.
  • the feed line branches off in front of the two spray zones.
  • a distribution element can be provided for this purpose.
  • the two spray zones can each have their own supply line.
  • the closure is arranged between the spray zone, which is decoupled from the pumping device with the aid of the closure, and the supply line.
  • the household dishwasher further comprises a water switch arranged downstream of the pumping device for activating and deactivating the spray zones.
  • the water switch can preferably be controlled with the aid of a control device of the domestic dishwasher.
  • the water switch is suitable for supplying individual spray zones or all spray zones simultaneously with fresh water and / or washing solution.
  • the water switch is arranged in particular between the pumping device and the spray zones.
  • the household dishwasher further comprises a control device for detecting a motor current of the pump device during the calibration process.
  • the motor current changes depending on which spray zone is active or inactive. Because part of the hydraulic circuit is decoupled from the pump device with the aid of the closure, a defined hydraulic state can be generated, as mentioned above, in which, for example, a reference operating point of the pump device when the spray zone or not decoupled is applied the non-uncoupled spray zones with fresh water and / or rinsing solution is recorded.
  • the closure is made from a water-soluble plastic material, in particular from polyvinyl alcohol.
  • closure can be made of any other water-soluble material.
  • the closure can also be made of salt, sugar or wax.
  • a method for calibrating a household dishwasher with egg nem washing container for receiving items to be washed, a hydraulic circuit for circulating fresh water and / or washing liquid in the washing container and a pumping device for charging the hydraulic circuit with the fresh water and / or the washing liquid comprises the following steps: a) uncoupling part of the hydraulic circuit from the pump device during a one-time calibration process of the household dishwasher with the aid of a closure made of a water-soluble material and b) opening the closure during and / or after the end of the Calibration process in the fresh water and / or the wash liquor.
  • the method is particularly suitable for calibrating or starting up a household dishwasher as explained above.
  • the procedure can be referred to as a calibration procedure or as a commissioning procedure. Steps a) and b) can be carried out consecutively or simultaneously.
  • the closure dissolves in step b) as a function of a temperature of the fresh water and / or the rinsing solution and / or a duration of contact of the closure with the fresh water and / or the rinsing solution.
  • step a) at least one spray zone of several spray zones of the hydraulic circuit is decoupled from the pumping device with the aid of the closure.
  • an intensive spray zone as mentioned above is decoupled from the other spray zones.
  • step a) the closure is arranged in or on a feed line of the at least one spray zone decoupled from the pumping device with the aid of the closure.
  • the arrangement of the closure can, for example, be carried out before the household dishwasher is installed.
  • the arrangement of the closure can already be carried out at a supplier.
  • a motor current of the pumping device is detected with the aid of a control device during the calibration process.
  • FIG. 4 shows a schematic block diagram of an embodiment of a method for calibrating the household dishwasher according to FIG. 1 or FIG. 3.
  • the door 3 is shown in FIG. 1 in its open position.
  • the door 3 can be closed or opened by pivoting about a pivot axis 5 provided at a lower end of the door 3.
  • a loading opening 6 of the washing compartment 2 can be closed or opened.
  • the washing compartment 2 has a base 7, a ceiling 8 disposed opposite the base 7, a rear wall 9 disposed opposite the closed door 3, and two side walls 10, 11 disposed opposite one another.
  • the floor 7, the ceiling 8, the rear wall 9 and the side walls 10, 11 can be made of stainless steel sheet, for example.
  • the bottom 7 can be made of a plastic material.
  • the domestic dishwasher 1 also has at least one washware receptacle 12 to 14.
  • the washware receptacle 12 being a lower washware receptacle or a lower basket
  • the washware receptacle 13 an upper washware receptacle or an upper basket
  • the washware receptacle 14 a cutlery drawer.
  • the items to be washed 12 to 14 are net angeord one above the other in the washing container 2.
  • Each washware receptacle 12 to 14 can optionally be moved into or out of the wash container 2.
  • each washware receptacle 12 to 14 can be pushed or moved into the washing container 2 in an insertion direction E and can be pulled out or pulled out of the washing container 2 in a pull-out direction A counter to the insertion direction E.
  • the domestic dishwasher 1 further comprises a pump device 16.
  • the pump device 16 is a circulating pump.
  • the pump device 16 can be arranged on a pump sump (not shown) of the washing container 2.
  • the pump sump is provided on the bottom 7 of the washing container 2.
  • the pump device 16 can be arranged in or on the pump sump.
  • the pumping device 16 is preferably positioned outside of the washing compartment 2.
  • the pumping device 16 can, however, also be arranged at least partially inside the washing compartment 2.
  • a water switch (not shown) can be provided between the pumping device 16 and the supply lines 20, 21, which makes it possible to supply either only one of the spray zones 18, 19 or both spray zones 18, 19 with fresh water and / or washing solution F at the same time apply io.
  • the feed lines 20, 21 or one of the feed lines 20, 21 can have a valve, in particular a switching valve, which makes it possible to decouple the respective spray zone 18, 19 from the pumping device 16.
  • the valve can, for example, be a manually operated valve. However, the valve can also be controlled electronically.
  • a closure 22 can be provided, which is made of a water-soluble material.
  • the closure 22 closes or blocks that supply line 20, 21 in or on which the closure 22 is arranged.
  • the water-soluble material can be, for example, a polyvinyl alcohol, a water-soluble salt, sugar, a water-soluble wax or the like.
  • the closure 22 can comprise a mixture of different materials. Water-insoluble materials, for example as fillers, can also be combined with water-soluble materials.
  • the control device 15 is suitable for detecting a motor current I of the pump device 16 and, on the basis of the motor current I, to infer which of the spray zones 18, 19 is active.
  • the pump device 16 receives different motor currents I in the event that only the spray zone 18, only the spray zone 19 or both spray zones 18, 19 are active.
  • the control device 15 can use a motor current difference or a motor current delta to know which of the spray zones 18, 19 is active.
  • the closure 22 ensures that a user does not inadvertently activate both spray zones 18, 19 when the domestic dishwasher 1 is started up.
  • the closure 22 slowly dissolves on contact with fresh water and / or washing liquor F, so that both spray zones 18, 19 can be activated after the calibration process has ended.
  • the calibration process of the household dishwasher 1 can thus be carried out in a defined hydraulic state, regardless of whether the spray zone 19 is active or inactive.
  • the closure 22 then dissolves as a function of the temperature of the fresh water and / or the rinsing liquor F and the duration of the exposure to the fresh water and / or the rinsing liquor F.
  • the time it takes for the closure 22 to dissolve can be influenced or controlled, for example, with the aid of its composition and / or a temperature control of the fresh water and / or the washing liquor F.
  • the calibration takes place without any action on the part of the user during the initial commissioning. This results in a simple operation. Because the calibration is carried out by the user, there is no need to calibrate in the final production. This results in a further cost saving.
  • the domestic dishwasher 1 comprises a base support 23 which carries the rinsing container 2.
  • the base support 23 is, for example, a plastic component, in particular a special plastic injection molded component.
  • the domestic dishwasher 1 furthermore comprises a hydraulic circuit 17 as explained above.
  • the hydraulic circuit 17 comprises a spray zone 28 which is designed as a spray arm which is rotatably mounted in the washing container 2.
  • the hydraulic circuit 17 comprises a further spray zone 29, which is also designed as a spray arm rotatably provided in the spray container 2.
  • Each spray zone 28, 29 comprises a multiplicity of spray nozzles for uniformly distributing fresh water and / or washing liquor F in the washing container 2.
  • the spray zone 28 is assigned to the washware receptacle 12 and the spray zone 29 is assigned to the washware receptacle 13.
  • the spray zone 28 is coupled to the water switch 26 with the aid of a supply line 30.
  • the spray zone 29 is coupled to the water switch 26 with the aid of a feed line 31.
  • only the spray zone 28 only the Sprühzo- ne 29 or both spray zones 28, 29 are acted upon with fresh water and / or washing solution F at the same time.
  • the hydraulic circuit 17 comprises a further spray zone 32, which is designed as a so-called intensive spray zone.
  • the spray zone 32 also comprises a multiplicity of spray nozzles.
  • the spray zone 32 can be attached to the washware receptacle 13.
  • the spray zone 32 is also fluidly coupled to the pump device 16 via the supply line 31.
  • a valve 33 is provided between the supply line 31 and the spray zone 32, with the aid of which the spray zone 32 can be fluidically decoupled from the hydraulic circuit 17 and can be coupled to it again.
  • the valve 33 can in particular be actuated manually by a user so that the user can deactivate and activate the spray zone 32.
  • the valve 33 is a switching valve. That is, the valve 33 is either fully open or fully closed.
  • the valve 33 can be an open-close valve.
  • a closure 22 Upstream of the valve 33, a closure 22, as previously explained, made of a material soluble in water is provided.
  • the closure 22 can be provided on or in a distribution element 34 which is suitable for distributing the fresh water and / or the washing liquor F to the spray zones 29, 32.
  • the closure 22 can, however, also be provided downstream of the valve 33.
  • upstream means arranged in front of the valve 33, viewed in a direction of flow of the fresh water and / or the washing liquor F.
  • downstream means arranged after the valve 33, viewed in the direction of flow of the fresh water and / or the rinsing liquor F.
  • the functionality of the household dishwasher 1 according to FIG. 3 essentially corresponds to the functionality of the household dishwasher 1 according to FIGS. 1 and 2.
  • the control device 15 In order to be able to detect in the operation of the household dishwasher 1 with the help of the control device 15 whether the manually operable spray zone 32 is active or inactive, it is necessary to calibrate the domestic dishwasher 1. As mentioned above, this calibration takes place in a defined hydraulic state.
  • This defined hydraulic state can be achieved in that the spray zone 32 is deactivated when the domestic dishwasher 1 is started up or when it is calibrated. This deactivation is effected by the closure 22 guaranteed.
  • the switching position of the valve 33 is irrelevant for the deactivation of the spray zone 32 when the domestic dishwasher 1 is started up.
  • calibration can take place during operation of the spray zone 29, the spray zone 28 or both spray zones 28, 29.
  • the shutter 22 dissolves.
  • the operating state of the spray zone 32 can be recognized after the calibration with the aid of a change in the motor current I.
  • step S1 part of the hydraulic circuit 17 is decoupled from the pump device 16 during a one-time calibration process of the domestic dishwasher 1 with the aid of the closure 22 made of a water-soluble material. Thereafter or at the same time, the closure 22 in the fresh water and / or the washing liquor F dissolves during and / or after the end of the calibration process.
  • the closure 22 dissolves in step S2 as a function of a temperature of the fresh water and / or the washing solution F and / or a duration of contact of the closure 22 with the fresh water and / or the washing solution F.
  • step S1 at least one of the spray zones 19, 32 is decoupled from several of the spray zones 18, 19, 28, 29, 32 of the hydraulic circuit 17 with the aid of the closure 22 from the pump device 16.
  • step S1 the closure 22 is arranged in or on one of the feed lines 21, 31 of the at least one spray zone 19, 32 which is decoupled from the pumping device 16 with the aid of the closure 22

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Washing And Drying Of Tableware (AREA)

Abstract

La présente invention concerne un lave-vaisselle domestique (1) avec un compartiment de lavage (2) pour recevoir de la vaisselle à laver, un circuit hydraulique (17) pour faire circuler de l'eau douce et/ou une liqueur de lavage (F) dans le compartiment de lavage (2), un dispositif de pompage (16) pour délivrer au circuit hydraulique (17) l'eau douce et/ou la liqueur de lavage (F), et une fermeture (22) constituée d'un matériau soluble dans l'eau, ladite fermeture déconnectant une partie du circuit hydraulique (17) du dispositif de pompe (16) pendant un processus d'étalonnage en une seule fois pour le lave-vaisselle domestique (1) et qui se dissout dans l'eau douce et/ou la liqueur de lavage (F) pendant et/ou après la fin du procédé d'étalonnage.
EP20817326.0A 2019-12-13 2020-12-02 Lave-vaisselle domestique et procédé Active EP4072391B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019219605.5A DE102019219605B4 (de) 2019-12-13 2019-12-13 Haushalts-Geschirrspülmaschine und Verfahren
PCT/EP2020/084245 WO2021115870A1 (fr) 2019-12-13 2020-12-02 Lave-vaisselle domestique et procédé

Publications (2)

Publication Number Publication Date
EP4072391A1 true EP4072391A1 (fr) 2022-10-19
EP4072391B1 EP4072391B1 (fr) 2024-07-31

Family

ID=73695048

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20817326.0A Active EP4072391B1 (fr) 2019-12-13 2020-12-02 Lave-vaisselle domestique et procédé

Country Status (5)

Country Link
US (1) US20230022919A1 (fr)
EP (1) EP4072391B1 (fr)
CN (1) CN114786556A (fr)
DE (1) DE102019219605B4 (fr)
WO (1) WO2021115870A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2547247B1 (fr) 2010-03-18 2021-08-18 Electrolux Home Products Corporation N.V. Procédé de remplissage d'eau du bac d'un lave-vaisselle
US9259138B2 (en) * 2010-12-07 2016-02-16 Whirlpool Corporation Dishwasher with auxiliary spray system having removable sprayers
DE102011003688A1 (de) * 2011-02-07 2012-08-09 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine und Verfahren zur Fehlerdetektion in einer Geschirrspülmaschine
PL2916707T3 (pl) * 2012-11-08 2020-02-28 Electrolux Home Products Corporation N.V. Wykrywanie stanu roboczego zmywarki
DE102017217989B4 (de) * 2017-10-10 2021-08-26 BSH Hausgeräte GmbH Haushalts-Geschirrspülmaschine

Also Published As

Publication number Publication date
CN114786556A (zh) 2022-07-22
DE102019219605A1 (de) 2021-06-17
US20230022919A1 (en) 2023-01-26
EP4072391B1 (fr) 2024-07-31
DE102019219605B4 (de) 2022-01-20
WO2021115870A1 (fr) 2021-06-17

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