EP2440104B1 - Lave-vaisselle doté de deux raccordements en eau et procédé de commande - Google Patents

Lave-vaisselle doté de deux raccordements en eau et procédé de commande Download PDF

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Publication number
EP2440104B1
EP2440104B1 EP09782716.6A EP09782716A EP2440104B1 EP 2440104 B1 EP2440104 B1 EP 2440104B1 EP 09782716 A EP09782716 A EP 09782716A EP 2440104 B1 EP2440104 B1 EP 2440104B1
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EP
European Patent Office
Prior art keywords
hot water
cold water
wash
water supply
cycle
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.)
Active
Application number
EP09782716.6A
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German (de)
English (en)
Other versions
EP2440104A1 (fr
Inventor
Roland Rieger
Michael Rosenbauer
Franz Gruell
Heinz Heissler
Anton Oblinger
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
Priority claimed from DE102009026876A external-priority patent/DE102009026876A1/de
Priority claimed from DE200910026904 external-priority patent/DE102009026904A1/de
Priority claimed from DE102009026887A external-priority patent/DE102009026887A1/de
Priority claimed from DE200910026878 external-priority patent/DE102009026878A1/de
Priority claimed from DE200910026911 external-priority patent/DE102009026911A1/de
Priority claimed from DE200910026877 external-priority patent/DE102009026877A1/de
Priority claimed from DE200910026879 external-priority patent/DE102009026879A1/de
Priority claimed from DE102009029148A external-priority patent/DE102009029148A1/de
Priority claimed from DE102009039847A external-priority patent/DE102009039847A1/de
Priority to PL09782716T priority Critical patent/PL2440104T3/pl
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP2440104A1 publication Critical patent/EP2440104A1/fr
Publication of EP2440104B1 publication Critical patent/EP2440104B1/fr
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    • 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
    • A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
    • 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
    • A47L15/0007—Washing phases
    • 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
    • A47L15/0028—Washing phases
    • 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
    • A47L15/0047—Energy or water consumption, e.g. by saving energy or water
    • 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
    • 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
    • A47L2301/00—Manual input in controlling methods of washing or rinsing machines for crockery or tableware, i.e. information entered by a user
    • A47L2301/04—Operation mode, e.g. delicate washing, economy washing, reduced time, sterilizing, water softener regenerating, odor eliminating or service
    • 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
    • A47L2401/03—Operation mode, e.g. delicate washing, economy washing, reduced time, sterilizing, water softener regenerating, odor eliminating or service
    • 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
    • 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
    • A47L2501/01—Water supply, e.g. opening or closure of the water inlet valve
    • 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
    • A47L2501/30—Regulation of machine operational steps within the washing process, e.g. performing an additional rinsing phase, shortening or stopping of the drying phase, washing at decreased noise operation conditions

Definitions

  • the present invention relates to a dishwasher, in particular a domestic dishwasher, with a hot water supply device for the intake of hot water from an external hot water supply, with a cold water supply device for the intake of cold water from an external cold water supply, and with a sequence control device for controlling a wash cycle of a selected dishwasher program for cleaning items to be washed.
  • the items to be washed are introduced into a washing container and are cleaned there with the aid of water in a washing process, which is also called a washing cycle, and then dried.
  • the respective rinse cycle can in particular comprise one or more partial rinse cycles or rinse cycle steps.
  • the aim is to carry out a rinse cycle so that a predefined cleaning result and a predefined drying result are achieved as efficiently as possible.
  • a high overall efficiency is required, which results from the cleaning efficiency and the drying efficiency.
  • the cleaning efficiency corresponds to the ratio of the cleaning result achieved by means of a rinse cycle and the effort required for this, the effort being able to comprise several dimensions, for example the energy requirement, the water requirement and / or the time requirement.
  • the drying efficiency corresponds to the ratio of the drying result achieved by means of a rinse cycle and the effort required for this, the effort here also comprising several dimensions, for example the energy requirement and / or the time requirement.
  • a sequence control device In the case of a dishwasher, a sequence control device is generally provided, in which one or more wash programs for controlling at least one wash cycle for cleaning items to be washed are stored.
  • the sequence control device is designed such that it automatically controls a rinse cycle according to a rinse program that is usually selected by an operator.
  • the water required to carry out rinse cycles can be supplied via a Water inlet device are included, which can absorb water, for example, from a water supply installed on the building.
  • a wash program preferably has a number of successive program steps for treating the washware, the water in the water-carrying program steps being provided with cleaning agents and / or additives depending on the respective program step and being brought to a temperature which is favorable for the respective program step .
  • modern dishwashers usually have automatic metering devices.
  • dishwashers can have a usually electrical heating device in order to bring the water provided for washing up to the required temperatures.
  • a typical rinsing program for cleaning the wash ware in this chronological order includes in particular a pre-rinse step to carry out a pre-rinse cycle, a cleaning step to carry out a cleaning cycle, an intermediate rinse step to carry out an intermediate rinse cycle, and a rinse cycle to carry out a rinse cycle, in which the wash ware are each washed with water or Rinsing liquor liquid is applied.
  • rinse programs can also be provided in which one or more of these program steps are hidden. Rinse programs are also possible in which one or more of these program steps are run through several times.
  • a typical washing program comprises a drying cycle following the last water-carrying partial washing cycle, which is implemented by a corresponding drying step of the selected dishwashing program, for drying the cleaned washware.
  • a pre-rinse step is primarily used to remove coarser soiling from the dishes.
  • the purpose of a subsequent cleaning step is to completely remove dirt from the wash ware.
  • An intermediate rinsing step which has now been carried out serves in particular to remove residues of cleaning agent which adhere to the items to be washed.
  • a subsequent rinse step is in particular to avoid stains on the wash ware caused by dissolved substances in the water, such as for example salt and / or lime, could be provided. To do this, rinse aid is added to the water during the rinse step.
  • a further task of the final rinse step is to prepare the subsequent drying step.
  • the items to be washed are heated to a high temperature during the rinse step.
  • water drops adhering to the hot wash items evaporate and are knocked off on the inside of the wash container due to the lower temperature prevailing there.
  • a water supply device for household appliances such as. B.
  • a dishwasher which comprises a cold water valve and a hot water valve. Both the cold water valve and the hot water valve can be opened or closed by means of a control device depending on an operating program. Downstream of the cold water valve and downstream of the hot water valve, a water supply hose is arranged, which opens into a branch. The only outlet of the branch is connected to a water inlet of the dishwasher that is fixed to the housing. In this way, the hot water required by the dishwasher can be taken from a hot water supply line, the water of which is heated by a domestic heating system.
  • the DE 100 57 263 A1 mentions a hot water supply for a household appliance, which has solar panels for hot water preparation.
  • the object of the present invention is to provide a dishwasher which causes lower energy costs in operation.
  • dishwasher in particular household dishwasher, with a hot water supply device for the entry of hot water from an external hot water supply, with a cold water supply device for the entry of cold water from an external cold water supply, and with a sequence control device for controlling a rinse cycle a selected dishwashing program for cleaning items to be washed, the sequence control device having a first operating mode in which at least one washing program can be called up, which specifically provides for hot water from the external hot water supply in at least one partial wash cycle, and wherein the sequence control device has a second operating mode , in which at least one wash program can be called up, which starts from at least one partial wash cycle finally, specifically provides for a supply of cold water from the external cold water supply, and the sequence control device being designed and coupled to the hot water supply device and the cold water supply device such that in the first operating mode for a first group of one or more partial wash cycles of the wash cycle carried out by a selected dishwashing program, for which a specific rinse bath hot water
  • thermal solar system is a technical system for converting solar energy into usable thermal energy.
  • Thermal solar systems usually provide hot water in a temperature range of, for example, 40 ° C to 70 ° C, which makes it possible to use the hot water directly for heating the building but also as process water.
  • Thermal solar systems usually comprise a large number of solar collectors which have an absorber surface which is heated by the electromagnetic solar radiation. From there, the heat can be transported by means of a fluid to a heat exchanger, which z. B. generated in a buffer memory that is filled with water.
  • the heating water requirement of a household can be covered with collector areas of a few square meters.
  • the generation costs for the thermal energy obtained are extremely low.
  • the performance of the solar panels is not sufficient.
  • solar systems therefore have conventional additional heating, for example gas or oil heating, in order to have enough hot water available even in such a situation.
  • additional heating has to be used, the production costs for the hot water provided generally rise.
  • a modern condensing heating system such as a pellet stove, wood chip or wood log heating, a combined heat and power system, geothermal heat pump heating, air heat pump system, a district heating system or a local heating system, individually or in any combination, etc.
  • a pellet stove with a thermal solar system can be energetically advantageous.
  • Other hot water supply systems that do not require or only have a relatively low primary energy requirement for fossil fuel carriers and / or only use largely CO 2 -neutral or reduced energy sources are also energetically favorable.
  • the explanations given in the case of a solar-thermal hot water production system apply analogously to the design and control of the dishwasher according to the invention in the presence or presence of another - including conventional hot water supply system.
  • the dishwasher according to the invention thus advantageously enables the efficient use of hot water from an external hot water supply system, in particular of hot water produced inexpensively by means of a solar system.
  • the sequence control device has a first operating mode in which at least one wash program can be called up, which provides for the use of hot water from the hot water supply in one wash cycle, and wherein the sequence control device has a second operating mode in which at least one wash program can be called up which Rinse cycle only allows the use of cold water from the cold water supply.
  • the first operating mode is therefore a hot water operation, in which at least partial hot water from the, in particular solar-thermal operated or supported, external hot water supply system is used for a rinse cycle
  • the second operating mode is a pure cold water operation, for which a rinse cycle uses only cold water from the external cold water supply system.
  • the first mode of operation enables washing cycles to be carried out efficiently if the cost savings due to the reduction in the internal heating requirements of the dishwasher are greater than the additional costs of operating the external ones Hot water supply system, which arise from the withdrawal of hot water.
  • the second mode of operation enables washing cycles to be carried out efficiently if the cost savings due to the reduction in the internal heating requirements of the dishwasher are less than the additional costs of operating the hot water supply which arise from the removal of hot water.
  • connection hoses of the dishwasher with the connections on the building side, depending on the request for hot water or cold water, i.e. to connect or separate them.
  • the dishwasher designed according to the invention now has, in particular, a first connection hose for drawing off hot water and a second connection hose for cold water, i.e. it is equipped with a bithermal water connection device.
  • the two connection hoses of this bithermal water connection device can remain permanently connected to the hot water connection of the external hot water supply and the cold water connection of the external cold water supply without changing the connection assignment.
  • the external hot water supply system in particular the solar collectors
  • this excess heat can be used in a simple manner to reduce the internal energy requirement of the dishwasher by selecting the first operating mode. If the external hot water supply system, in particular the solar collectors, does not provide enough heat in relation to the heat requirement of the household, then by selecting the second operating mode, it can be prevented that heat is withdrawn from the hot water supply, which is generated by heating with the additional heater, which is usually more expensive Hot water supply system would have to be compensated.
  • the rinsing programs that can be called up when the first operating mode is selected are especially adapted to the use of hot water from the external hot water supply system, in particular the thermal solar system, with regard to their chronological sequence.
  • the wash programs that can be called up when the second operating mode is selected are especially adapted to the use of cold water with regard to their chronological sequence. In both cases, a predetermined cleaning effect or drying effect can be achieved with high efficiency.
  • Corresponding washing programs can be provided in the first operating mode and in the second operating mode, which are largely the same, in particular, due to an essentially identical cleaning action and / or drying action.
  • corresponding normal washing programs corresponding intensive programs, corresponding gentle programs or corresponding automatic programs can be provided.
  • the corresponding programs can alternatively or additionally be designed as quick-wash programs.
  • At least one washing program can be called up in the first operating mode, which provides at least one program step for washing dishes to be washed using hot water from the hot water supply.
  • a program step requires the use of water at a high temperature or at least makes it desirable, hot water from the external water supply system can be taken up for this program step in the first operating mode.
  • a program step for washing items to be washed can be, in particular, a cleaning step and / or a rinse-aid step, since it is generally provided there that relatively warm water is applied to the items to be washed.
  • the hot water can be taken in before or during the respective program step.
  • Intake of hot water for such a program step is in particular more energy and cost efficient than ingestion of cold water if the external water supply system, in particular thermal solar system, provides sufficient thermal energy.
  • the reason for the increased cost efficiency is that when hot water is taken in, the internal electrical energy requirement of the Dishwasher for at least one partial wash cycle of the wash cycle of a selected dishwashing program drops significantly due to a reduced electrical energy requirement for heating the water taken up. This can lead to a significant reduction in household electricity costs. In this way, an increase in efficiency can be achieved compared to a dishwasher, which is provided exclusively for connection to a cold water supply.
  • At least one wash program can be called up in the first operating mode, which additionally provides for the use of cold water from the cold water supply in at least one program step of the respectively selected dishwashing program, ie in at least one partial wash cycle of the associated wash cycle.
  • the sequence control device is designed and coupled to the hot water supply device and the cold water supply device such that hot water is required for a first group of partial wash cycles in the wash cycle of a selected dishwashing program, each of which requires a specific wash bath hot water temperature greater than the cold water temperature of the cold water of the external cold water supply from the external hot water supply by means of the hot water supply device can be fed into the rinse tank in a partial rinse-specific manner, and that for a second group of partial rinse cycles of the rinse cycle of the selected dishwashing program, cold water from the external cold water supply can be fed into the rinse tank specifically for the rinse tank by means of the cold water supply device.
  • the first operating mode is therefore a combined hot and cold water operation.
  • the partial absorption of cold water from the external cold water supply can reduce the amount of hot water that has to be taken from the external hot water supply for a rinse cycle without having to accept substantial disadvantages with regard to the cleaning effect and / or the drying effect.
  • the first operating mode can also be selected if necessary if the external hot water supply system, in particular its solar collectors, provides comparatively little thermal energy.
  • one or more washing programs are each possible for controlling a washing cycle, which each carry out individual program steps such as e.g. B. Pre-rinse step, intermediate rinse step with the specific use of hot water from the external hot water supply and the implementation of other program steps with the specific use of cold water from the external cold water supply system.
  • B. Pre-rinse step intermediate rinse step with the specific use of hot water from the external hot water supply
  • other program steps with the specific use of cold water from the external cold water supply system.
  • the wall surface of the rinsing container contacted by the heat exchanger can be cooled, for example during the drying process, and the condensation of liquid on the inner wall surface of the wall of the rinsing container provided with the heat exchanger on the outside can be improved, so that this results in an improved drying result.
  • hot water from the external hot water supply system is used for all water-carrying partial rinse cycles of the selected dishwasher program, because e.g. no cold water connection at all, but only a hot water connection is available, or because a dishwasher program is selected by means of the dishwasher control, in particular by manually pressing its auxiliary button for external hot water supply, which only provides hot water for all of its partial rinse cycles, if the heat exchanger is not filled with hot water at the end of the rinse cycle, but remains empty for the duration of the drying cycle. This prevents the condensation process in the washing compartment from being impaired by an additional quantity of hot water.
  • the sequence control device ensures in particular that only cold water from the cold water supply is supplied to the rinse baths in all partial rinse cycles of the selected dishwasher program. For those partial wash cycles, for their respective rinse bath quantity, a specific minimum temperature higher than the cold water temperature is required, the cold water to be introduced for the respective rinsing bath is heated by the heating device of the liquid flow system, in particular the circulation pump, of the dishwasher and brought to the desired specific minimum temperature.
  • an operating device which enables the operating mode to be selected manually.
  • Such an operating device enables the operator to decide for himself whether hot water should be used partially or exclusively or whether only cold water should be taken up.
  • the operating device can be an additional button, for example, which is arranged on an operating panel of the dishwasher. But it is also possible to switch the operating mode operating devices such. B. multifunction buttons, knobs, touch screens, alphanumeric input units and the like. This additional button can in particular also be provided for other operator interventions for checking and controlling the dishwasher.
  • the dishwasher has, in particular, a data interface which is provided for receiving operating data from the external hot water supply system, in particular a thermal solar system.
  • the sequence control device can be designed to automatically select the operating mode on the basis of received operating data.
  • Such operating data can be, for example, information relating to the performance of solar collectors or information relating to the amount of heat stored in a heat store, in particular a buffer store, of a thermal solar system. In this way, an automatic selection of the more efficient operating mode is possible.
  • the hot water supply comprises a hot water valve and the cold water supply comprises a cold water valve, the hot water valve and the cold water valve being controllable independently of one another, ie individually by the sequence control device of the dishwasher.
  • the hot water valve and the cold water valve being controllable independently of one another, ie individually by the sequence control device of the dishwasher.
  • the hot water valve is arranged at an upstream end of a hot water hose and is designed such that it can be attached to a connector of the external hot water supply, and / or that the cold water valve is arranged at an upstream end of a cold water hose and so on is designed so that it can be attached to a connector of the external cold water supply.
  • the hot water valve and / or the cold water valve can have, for example, connecting threads which correspond to threads of household water taps. Valves of this type can be designed in particular as aquastop valves.
  • the sequence control device can optionally include a leakage water sensor, e.g. in the rinsing container or a collecting trough below the rinsing container for detecting leakage water, so that the sequence control device can close the valves if leakage water occurs during operation of the dishwasher.
  • connection piece is provided externally from the dishwasher, and that the downstream end of the hot water hose and the downstream end of the cold water hose can be connected in a liquid-conducting manner via the connection piece to an inlet hose which is connected to the device-side, in particular housing-fixed Connector of the dishwasher can be coupled or coupled.
  • a such merging of the two water supply devices for hot water and cold water of the water supply device is structurally simple and shortens the total hose length required in many cases, especially if the connection points of the external hot water supply and the external cold water supply are further away from the installation location of the dishwasher, since in this case on two longer parallel hoses can be dispensed with.
  • the connecting piece is firmly coupled to the device-side, in particular device-internal, to the device-side connecting piece or is integrally formed thereon. It has a first connection branch on one side for connecting the hot water hose and a second connection branch on the input side for connecting the cold water hose.
  • the external common inlet hose is therefore no longer necessary.
  • This connector can be attached to or in the dishwasher in particular from the outset in the factory.
  • the connector together with the connector in the area of the base assembly of the dishwasher i.e. be provided below or in the rinsing container. It can preferably have a Y-shaped or F-shaped geometric shape.
  • the invention also relates to a method for controlling at least one wash cycle of a dishwasher, in particular a domestic dishwasher, which has a hot water supply device for the entry of hot water from an external hot water supply and a cold water supply device for the entry of cold water from an external cold water supply, by means of at least one washing program of a sequence control device, whereby the sequence control device calls up at least one washing program in a first operating mode, in which hot water from the external hot water supply is specifically obtained for at least one partial washing step of the washing step implemented by it, and wherein at least one washing program is called up by the sequence control device in a second operating mode, for which at least one partial rinse of the rinse cycle implemented by him exclusively draws cold water from the external cold water supply, and whereby by means of the sequence control device
  • the hot water supply device and the cold water supply device are controlled in such a way that in the first operating mode for a first group of one or more partial wash cycles of the wash cycle carried out by a selected dishwashing program, for each of which a specific wash bath hot water temperature
  • FIG. 1 shows a schematic spatial representation of an advantageous embodiment of a dishwasher 1 according to the invention.
  • This has a washing container 2, which can be closed by a door 3, so that a washing cell for washing dishes is created.
  • the washing container 2 is arranged in the interior of a housing 4 of the dishwasher 1, which can have standard dimensions.
  • the housing 4 can have a width of 45 cm or 60 cm, which enables the dishwasher 1 to be integrated into a standard kitchen unit with a corresponding recess.
  • This housing 4 can optionally be partially or completely omitted such.
  • a schematically illustrated water supply device 5 is arranged on the back of the dishwasher 1. This has a hot water supply device 51 and a cold water supply device 52, the hot water supply device 51 being provided for receiving hot water from an external hot water supply WA and the cold water supply device 52 for receiving cold water from an external cold water supply KA.
  • the hot water supply device 51 comprises a controllable hot water valve 6 and the cold water supply device 52 a controllable cold water valve 8.
  • the hot water valve 6 and the cold water valve 8 are basically identical in construction.
  • both valves 6, 8 can be designed as a solenoid valve.
  • the inlet sides of the valves 6, 8 are each designed in such a way that they can be attached to connecting pieces, for example to water taps WH, KH, to the domestic or building-side hot water supply WA and cold water supply KA.
  • the connection can be made by means of a screw connection, a snap connection or the like.
  • Valves 6, 8 of this type can be designed in particular as aquastop valves.
  • these are each closed when they are not activated, so that the dishwasher 1 is disconnected from the hot water supply and the cold water supply when it is switched off. In this way, leakage of water from the switched off dishwasher 1 can be avoided in the event of a fault.
  • FIG. 1 the input side of the hot water valve 6 is connected to the hot water tap WH and the input side of the cold water valve 8 is connected to the cold water tap KH.
  • the output side of the hot water valve 6 is connected to a hot water hose 7 and the output side of the cold water valve 8 is connected to a cold water hose 9, the downstream ends of the hot water hose 7 and the cold water hose 9 being connected to the input side of an external, common connecting piece 10.
  • a common inlet hose 11 for hot water and cold water connects to its outlet side, which in turn is connected to a connector 12 on the housing 4 of the dishwasher 1.
  • the hot water hose 7, the cold water hose 9 and / or the common inlet hose 11 can be designed as safety hoses with an inner water-carrying pressure hose and an outer jacket hose, with between Pressure hose and enveloping hose can each be provided with a leakage water channel for discharging any leakage water that may occur.
  • the connecting piece 10 can be designed such that the leakage water channels of the hot water hose 7, the cold water hose 9 and the common inlet hose 11 are connected to one another, so that leakage water which occurs in the area of the water inlet device 5 during operation of the dishwasher 1 via the connection piece fixed to the housing 12 is directed into the interior of the dishwasher 1.
  • a leak water sensor not shown, so that appropriate measures, such as closing the hot water valve 6 and cold water valve 8, can be initiated.
  • the connector can in particular as a Y-branch, F-shaped or other geometric shape for merging the cold water hose 9 and the hot water hose 7 in a common junction line such. B 12 should be formed.
  • the connector on the device side, in particular device-internal is directly coupled to the device-side, in particular device-internal, connector piece 12, or replaces it.
  • this can be prepared at the factory.
  • the external, common inlet hose can be saved. It can be useful if the hot water hose 7 and the cold water hose 9 are already preassembled on this device-internal equipment component.
  • the common connecting piece can be provided on or in the area of the base assembly of the dishwasher.
  • a free flow path 13 is provided downstream of the connector 12 fixed to the housing or of the connector 10 provided inside the device, which can possibly replace the connector 12.
  • the free flow path 13 is a so-called pipe interruption, which serves to prevent water from being sucked back out of the dishwasher 1 if a vacuum is created in the respective external water supply due to dynamic processes. This will In particular, it prevents water that has already been used, which can be mixed with dirt, cleaning agents and / or cleaning aids, from getting back into the building's water supply from the rinsing tank 2. As a result, hygiene regulations with regard to drinking water networks and / or industrial water networks can be complied with in a reliable manner.
  • the dishwasher 1 also shows in Figure 1 Components not shown, which make it possible to direct hot water WW and / or cold water KW from the outlet of the free flow path 13 into the washing container 2.
  • a pump pot 16 is provided in a lower region of the washing container 2, in which a circulation pump for circulating water in the washing container 2 is expediently provided during a washing cycle to be carried out.
  • the circulation pump can also include a heating device for heating the water in the washing container 2, for example a water heater.
  • a wastewater pump in particular a drain pump, for pumping out water, for example at the end of a rinse cycle, can be provided in the pump pot 16.
  • the various pump functions can also be performed by a single pump in conjunction with switchable valves.
  • the pump pot 16 is generally connected to a waste water connection piece 17 by means not shown, so that water can be pumped out of the rinsing container 2 via a waste water hose 18 connected to a waste water connection piece 17 into a waste water device A, for example a waste water pipe A, installed on the building side.
  • the circulation pump and the sewage pump are in the Figure 1 has been omitted for the sake of simplicity. they are in the Figure 2 shown and designated 22, 24.
  • the hot water supply device 51 of the dishwasher 1 is, as intended, connected to an external hot water supply WA, which in the exemplary embodiment is supplied with hot water WW in particular by a thermal solar system TSA.
  • the thermal solar system TSA comprises one or more or a large number of SOK solar collectors, of which only one collector is shown for reasons of space.
  • the SOK solar collectors each have an absorber surface, not shown, which can be heated by the electromagnetic solar radiation. From there, the heat can be converted to one by means of a fluid Heat exchangers WT are transported, which generates the hot water WW for the hot water supply WA.
  • This hot water can in particular be stored in a buffer store PS via an inlet line ZL and can be removed from this buffer store via a hot water line WL.
  • the hot water supply WA here in the exemplary embodiment has a conventional additional heating system ZH, for example a gas or oil heating system, or pellet heating system or a heat pump system, which also Deliver heat to the heat exchanger WT or directly via an in Figure 1 Supply line, not shown, can be connected to the buffer memory PS.
  • a conventional additional heating system ZH for example a gas or oil heating system, or pellet heating system or a heat pump system, which also Deliver heat to the heat exchanger WT or directly via an in Figure 1 Supply line, not shown, can be connected to the buffer memory PS.
  • the dishwasher 1 also has a sequence control device 19 for controlling the course of a wash cycle according to a selected dishwasher program.
  • the sequence control device 19 comprises a first operating mode in which one or more washing programs can be called, each of which performs a washing cycle in such a way that the specific use of hot water WW from the hot water supply WA is provided for one or more partial washing cycles.
  • the sequence control device comprises a second operating mode in which one or more washing programs can be called up, each of which is implemented in a washing cycle in such a way that only cold water KW from the cold water supply KA is used for its partial washing cycle sequence.
  • the sequence control device 19 is connected to an operating device 20 which, in the exemplary embodiment, is arranged on a control panel of the door 3 of the washing compartment 2.
  • the sequence control device 19 itself is housed inside the door 3. However, both could also be arranged elsewhere in the dishwasher 1.
  • the operating device enables the operator to manually set the desired operating mode and to manually select an individual program that is available for the respectively selected operating mode.
  • the operating device 20 includes, in particular, an additional function key ZT for the manual selection of the hot water supply from the hot water supply system WA if, as in the exemplary embodiment here, by the thermal solar system TSA alone or exclusively is fed, or provides a predetermined minimum heat input to the amount of hot water in an existing water heating system.
  • the dishwasher 1 can have a data interface 20a, which is provided for receiving operating data for the hot water supply WA.
  • a data interface 20a can be connected via a data line DL1, for example, to a control unit and / or sensor unit SE of the thermal solar system TSE.
  • a temperature sensor can be provided as sensor unit SE.
  • the data line DL1 and the data interface 20a are shown in FIG Figure 1 additionally shown in dash-dotted lines.
  • the data interface 20a is also connected to the sequence control device 19 via a Figure 1 Data line DL2 shown in dash-dot lines is connected.
  • the sequence control device 19 can then expediently be designed to automatically select the operating mode on the basis of the operating data provided by the control unit and / or sensor unit SE via the data lines DL1, DL2. For example, it is possible for the dishwasher 1 to automatically switch to the second operating mode when the heating power of the solar collectors SOK falls below a certain limit value ST, and to change to the first operating mode when the heating power of the solar collectors exceeds this limit value ST. It is also possible to automatically control the operating mode as a function of the temperature in the heat exchanger WT and / or buffer store PS. This can be particularly useful if the hot water supply is provided solely by the thermal solar system TSA, ie there is no additional heating ZH.
  • the sequence control device 19 switches to the second operating mode when the temperature of the hot water WW generated by the solar system TSA falls below a certain minimum temperature. It can also be provided that the second operating mode is automatically changed when the additional heater ZH is switched on.
  • the control and / or sensor unit is in particular assigned to the heat exchanger WT. In addition or independently of this, it can also be assigned to the buffer memory PS.
  • FIG Figure 2 shows a schematic block diagram of the dishwasher 1 of FIG Figure 1 .
  • the hot water valve 6 and the cold water valve 8 are each connected to the sequence control device 19 via separate control lines SL6, SL8 that both can be controlled individually. This makes it possible to specifically feed the washing container 2 of the dishwasher 1 with hot water and / or cold water via the connector 10, the free flow path 13 and an outlet 21.
  • the circulation pump 22 which is designed as a heating pump and is connected to a spray system 23 arranged in the interior of the washing container 2, is arranged in the pump bowl 16 of the washing container 2.
  • the sewage pump 24 is arranged in the pump pot, which enables water that is no longer required to be pumped out into the sewage pipe A.
  • both the heating function and the pump function can be individually controlled by the sequence control device 19, which in the Figure 2 is symbolized by a control line SL22.
  • the sequence control device 19 is also connected to the drain pump 24 for controlling it in a corresponding manner via at least one control line. This is here in the Figure 2 omitted for the sake of clarity.
  • the operating device 20 is connected to the sequence control device 19 via one or more control lines SL1 in such a way that operating commands can be transmitted from the operating device 20 to the sequence control device 19 (and vice versa).
  • the data interface 20a is connected to the sequence control device 19 via one or more data lines DL1 in such a way that the operating data of the thermal solar system TSA received from the data interface 20a can be transmitted from the data interface 20a to the sequence control device 19.
  • the loading of the dishwasher 1 with water takes place, as does the control of the circulation pump 22 and the drain pump 24, as well as other devices of the dishwasher 1 not explained here, depending on a selected dishwasher program.
  • the washing programs are stored in the sequence control device 19, and different washing programs can be called up depending on the operating mode set.
  • In the first operating mode at least one rinse program is provided, which can be selected specifically for the efficient use of solar-heated water.
  • FIG 3 shows an exemplary washing program SP1 of the dishwasher 1 of FIG Figures 1 and 2nd which can be selected in the first operating mode.
  • the washing program SP1 is intended to control the timing of a washing cycle when the hot water supply device 51 of the dishwasher 1 is supplied with hot water generated by solar thermal energy from a thermal solar system TSA.
  • it comprises a pre-rinse step VS, a subsequent cleaning step RS, a subsequent intermediate rinse step ZS, a downstream rinse step KS and a final drying step TS.
  • the rinse program SP1 correspondingly implements a pre-rinse cycle VS, a cleaning cycle RG, an intermediate rinse cycle ZG, a rinse cycle and a final drying cycle TG of an associated rinse cycle SG1 as partial rinse cycles.
  • the pre-rinse cycle VG, the cleaning cycle RG, the intermediate rinse cycle ZG and the rinse cycle are subjected to liquid.
  • the curve SWV represents the switching state of the hot water valve 6 of the dishwasher 1.
  • the curve SKV shows the switching state of the cold water valve 8 of the dishwasher 1.
  • the switching state "0" corresponds to a closed valve 6, 8, the switching state "1" to an open one Valve 6, 8.
  • the curve BAP also shows the operating state of the waste water pump 24, the switch-off state being symbolized by "0” and the switch-on state by "1".
  • the curve BSB shows the state of loading of the washing container 2 with water.
  • a washing container 2 charged with hot water from the hot water supply WH is represented by "WW”
  • a washing container 2 supplied with cold water from the cold water supply KH is represented by "KW”
  • an empty washing container 2 is represented by "0".
  • the washing program SP1 is preferably a typical normal washing program which is provided for cleaning normally soiled items.
  • one or more of these steps could be hidden. Examples would also be possible, such as an intensive program, in which one or more steps are run through several times.
  • the pre-rinsing step VS initially carried out serves to remove coarser soiling from the dishes in a pre-rinse cycle in order to prepare the cleaning step RS.
  • the cold water valve 8 is opened at the beginning of the pre-rinsing step VS until the rinsing tank 2 is supplied with a sufficient amount of cold water KW from the cold water supply KA.
  • This cold water is circulated by means of the circulation pump 22 for a predetermined time, as a rule without switching on its heating device, so as to apply cold water KW to the items to be washed. Then the now dirty cold water is pumped out by means of the waste water pump 24.
  • the subsequent cleaning step RS is used for thorough cleaning of the wash ware in one cleaning cycle RG.
  • the hot water valve 6 is opened at the beginning of the cleaning step RS until the rinsing tank 2 is supplied with a sufficient amount of hot water WW from the hot water supply WA.
  • the hot water WW filled into the washing compartment 2 is now circulated for a predetermined time with the aid of the circulation pump 22, so that hot water is applied to the items to be washed.
  • the heating device of the circulation pump 22 can be switched on as required depending on the temperature of the hot water supplied and depending on the intended rinsing temperature of the cleaning step RS if the water inlet temperature from the hot water supply WA is below a desired target temperature for the rinsing bath of the cleaning cycle RG lies.
  • the now dirty hot water is pumped outwards by means of the waste water pump 24.
  • the cleaning step RS it is generally necessary to apply water to the wash ware which has a comparatively high temperature in order to achieve a high thermal cleaning effect.
  • detergent is generally added to the water, the chemical cleaning effect of which is best at higher temperatures.
  • a target rinsing bath temperature of approximately 50 ° C. to 70 ° C. is selected for the cleaning step RS.
  • the intermediate rinsing step ZS now carried out for removing detergent from the wash ware after the cleaning step RS in an intermediate rinse cycle ZG likewise provides for the washing container 2 to be fed with cold water KW from the cold water supply KA in order to be able to apply cold water to the wash ware.
  • the cold water valve 8 is first opened until the rinsing container 2 is charged with a sufficient amount of cold water for the intermediate rinsing step ZS.
  • This cold water is circulated for a predetermined time by means of the circulation pump 22, it being possible as a rule not to switch on its heating device. Then the now dirty cold water is pumped out by means of the waste water pump 24.
  • warm water WW from the hot water supply WA is provided for washware.
  • the hot water valve 6 is first opened again until the rinse tank 2 is supplied with a sufficient amount of hot water WW from the hot water supply WA for the rinse step KS.
  • the hot water filled into the washing container 2 is then circulated for a predetermined time with the aid of the circulation pump 22, so that hot water is applied to the items to be washed.
  • the heating device of the circulation pump 22 can be switched on as required depending on the temperature of the hot water supplied and depending on its intended rinse temperature.
  • the heating device of the circulation pump 22 can advantageously remain switched off or deactivated. If the inlet temperature of the hot water is below the required minimum temperature, the electrical heating device of the liquid circulation system of the dishwasher can be switched on for reheating. In any case, the use of hot water can reduce the energy consumption of the dishwasher.
  • the now dirty hot water is pumped outwards by means of the waste water pump 24.
  • a rinse aid step KS serves in particular to avoid stains on the dishes which could be caused by dissolved substances in the water, such as salt and / or lime.
  • the rinse aid is added to the water during the rinse aid step KS.
  • Another task of the rinse aid step KS is to prepare the subsequent drying step TG in the drying step TS.
  • the dishes are heated up by using particularly hot water, which has a temperature of 60 ° C. to 75 ° C., for example.
  • water droplets adhering to the hot dishes evaporate and hit the inside of the washing compartment 2 due to the fact that there prevailing lower temperature.
  • the washing container 2 is not provided with water.
  • This reservoir VB is in the Figure 1 dash-dotted lines on a wall, in particular the side wall, of the washing compartment 2. It communicates with the washing container 2 in a heat-transferring manner, for example by contacting. It is connected downstream of the connection piece 12 fixed to the housing and the free flow path 13 and has an outflow into the rinsing container 2, which in the Figure 1 has been omitted for the sake of clarity.
  • the wall surface of the rinsing container contacted by the heat exchanger can be cooled during the drying process and the condensation of liquid on the inner wall surface of the wall of the rinsing container provided with the heat exchanger on the outside can be improved, so that this results in an improved drying result.
  • the outlet valve VEN in the outlet AL of the storage container VB is not shut off at the end of the rinse cycle KG as in the case of a pure cold water connection, but remains open so that the incoming hot water can run into the washing container and the heat exchanger or storage container VB remains empty.
  • this prevents the condensation on the inner walls of the rinsing container from being deteriorated during the drying cycle by an additional amount of hot water compared to the case of a dishwasher which has no heat exchanger at all.
  • FIG. 4 shows an exemplary washing program SP2 of the dishwasher 1 in FIG Figures 1 and 2nd which can be selected in an advantageous embodiment of the second operating mode.
  • the washing program SP2 is intended to control a sequence of a washing cycle if the hot water supply WA is supplied with hot water WW generated by the additional heater ZH and the thermal energy provided by the solar system TSA makes an insufficient contribution.
  • the wash program SP2 or the associated wash cycle SG2 is also a normal wash program, which corresponds to the normal wash program SP1 described above or its associated wash cycle SG1 in such a way that it has an essentially identical cleaning and drying effect.
  • the washing program SP2 now only provides for the use of cold water KW from the cold water supply KA, because the heat input into the total volume of the buffer storage PS is too low in relation to the contribution from the heating system ZH. This prevents thermal energy from being withdrawn from the hot water supply WA if, for example, the solar collectors SOK supply too little thermal energy.
  • program steps RS, KS in which it is necessary or desirable to apply water at a higher temperature to the wash ware, in particular in the cleaning step RS and in the rinse step KS, the water provided for loading the wash ware alone, i.e. exclusively by means of the water heater of the circulation pump 22, i.e. generally expressed with an electric heating device in the liquid circulation system of the dishwasher.
  • the additional costs for the electrical energy required for this are in many cases lower than the additional costs that would arise if the additional heating ZH of the external hot water supply WA had to be switched on due to an additional hot water extraction.
  • the sequence control device 19 of the dishwasher 1 ensures that only cold water is provided for the wash baths in all partial wash cycles of the wash cycle of the selected dishwashing program is fed from the cold water pipe.
  • the amount of cold water to be introduced for the respective rinse bath is heated by the heating device of the liquid circulation system, in particular the circulation pump, the dishwasher and to the desired, specific minimum or Target temperature brought.
  • the heat exchanger VB is filled with cold water KW after the end of the rinse step, that is to say the heat exchanger remains filled with cold water during the period of the drying step, so that the heat it contacts or otherwise connects to it in a heat-conducting manner Surface of the rinsing container is cooled to improve the condensation effect.
  • the invention relates to a dishwasher with an additional function key, preferably for the selection of hot water supply from an additional hot water supply system, which in particular by alternative energy sources such as e.g. a hot water solar system is partially or completely powered.
  • an additional hot water supply system which in particular by alternative energy sources such as e.g. a hot water solar system is partially or completely powered.
  • two water connections or water supply devices are expediently provided, each of which can be controlled separately with a valve, in particular an aquastop valve.
  • the dishwasher has a bithermal water connection with hot water supply and cold water supply.
  • One water connection is therefore for hot water, in particular warm, inexpensive solar water, and another water connection is provided for cold water from the cold water supply network.
  • Both water connections can be selected individually or specifically via a controller on the dishwasher.
  • the water then flows via a connecting piece or merging piece, possibly via a common supply hose, to a water inlet system of the dishwasher, which is connected to its liquid circulation system.
  • the dishwasher now expediently has an additional function key (see ZT in Figure 1 ) (Solar button), which can be arranged in particular on the cover, preferably control panel, of the dishwasher.
  • Solar button When this button is pressed, special flushing processes with flushing steps can be activated in the control unit or sequence control device, which are designed for any available hot water from the hot water supply system, in particular hot water solar system.
  • Manual selection using the additional button may be omitted if the dishwasher e.g. the data is transmitted via data transmission, in which way or operating mode - e.g. B. solar or e.g. with heating oil - just heating.
  • the dishwasher designed according to the invention can now react to change requests regarding cold water and hot water supply by actuating the operating device, in particular pressing the additional function key, in various ways in order to achieve the goal of achieving good washing and drying performance that is as energy-saving as possible.
  • the customer can switch his dishwasher to cold water operation even in the summer months when the weather is bad or during the transition to the winter months by deactivating the additional button if too little energy is fed into the hot water tank via the hot water solar system.
  • the sequence control device of the dishwasher designed according to the invention ensures, in accordance with an advantageous operating variant, in particular that a rinse cycle for the rinse baths of those partial rinse cycles, such as cleaning cycle and rinse cycle a selected dishwashing program, each of which requires a specific minimum temperature higher than the cold water temperature KT, hot water from the available additional hot water supply system, which is particularly coupled with a thermal solar system, and that for the rinse baths in those partial rinse cycles of the wash cycle, in which only cold water is sufficient, only cold water from the cold water supply is used without additional heating.
  • a rinse cycle for the rinse baths of those partial rinse cycles such as cleaning cycle and rinse cycle a selected dishwashing program, each of which requires a specific minimum temperature higher than the cold water temperature KT, hot water from the available additional hot water supply system, which is particularly coupled with a thermal solar system, and that for the rinse baths in those partial rinse cycles of the wash cycle, in which only cold water is sufficient, only cold water from the cold water supply is used without additional heating.

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

Claims (9)

  1. Lave-vaisselle, notamment lave-vaisselle (1) à usage domestique, comprenant un dispositif d'arrivée d'eau chaude (51) pour l'amenée d'eau chaude (WW) à partir d'une alimentation externe en eau chaude (WA), comprenant un dispositif d'arrivée d'eau froide (52) pour l'amenée d'eau froide (KW) à partir d'une alimentation externe en eau froide (KA), ainsi qu'un dispositif de commande de déroulement (19) pour la commande d'un cycle de lavage d'un programme de lavage de vaisselle sélectionné destiné au nettoyage de produits à laver,
    le dispositif de commande de déroulement (19) présentant un premier mode de fonctionnement dans lequel au moins un programme de lavage (SP1) peut être appelé, lequel, lors d'au moins un cycle de lavage partiel (RG) d'un cycle de lavage (SG1), prévoit spécifiquement un apport d'eau chaude (WW) à partir de l'alimentation externe en eau chaude (WA),
    et le dispositif de commande de déroulement (19) présentant un deuxième mode de fonctionnement, lors duquel au moins un programme de lavage (SP2) peut être appelé, lequel, lors d'au moins un cycle de lavage partiel (TG) d'un cycle de lavage (SG1), prévoit spécifiquement uniquement un apport d'eau froide (KW) à partir de l'alimentation externe en eau froide (KA),
    caractérisé en ce que
    le dispositif de commande de déroulement (19) est réalisé et couplé au dispositif d'arrivée d'eau chaude (51) ainsi qu'au dispositif d'arrivée d'eau froide (52) de manière à ce que dans le premier mode de fonctionnement, pour un premier groupe de un ou de plusieurs cycles de lavage partiels (RG, KG) du cycle de lavage (SG1) exécuté par un programme de lavage de vaisselle (SP1) sélectionné, pour lesquels respectivement une température spécifique d'eau chaude (ST) de bain de lavage supérieure à la température d'eau froide (KT) de l'eau froide (KW) de l'alimentation externe en eau froide (KA) est demandée, de l'eau chaude (WW) provenant de l'alimentation externe en eau chaude (WA) peut être alimentée dans la cuve de lavage (2) spécifiquement au cycle de lavage partiel au moyen du dispositif d'arrivée d'eau chaude (51),
    et en ce que pour un deuxième groupe de un ou de plusieurs cycles de lavage partiels (VG, ZG) du cycle de lavage (SG1) du programme de lavage de vaisselle (SP1) sélectionné, pour lesquels la température d'eau froide (KT) de l'eau froide (KW) de l'alimentation externe en eau froide (KA) est suffisante ou demandée respectivement en tant que température d'eau chaude (ST) spécifique de bain de lavage, de l'eau froide (KW) provenant de l'alimentation externe en eau froide (KA) peut être alimentée dans la cuve de lavage (2) spécifiquement au cycle de lavage partiel au moyen du dispositif d'arrivée d'eau froide (52), un échangeur de chaleur présent de manière externe, notamment sous forme d'une poche d'eau ou d'un réservoir de stockage (VB), qui est placé sur une paroi, notamment une paroi latérale, de la cuve de lavage (2) de manière transférant la chaleur, étant rempli avec de l'eau froide (KW) provenant du dispositif externe d'arrivée d'eau froide (52) à la fin du cycle de rinçage (KG) et/ou au début du cycle de séchage (TG) suivant du cycle de lavage (SG1),
    et en ce que pour le cas où pour tous les cycles de lavage partiels, avec transport d'eau, du cycle de lavage (SG1) exécuté par un programme de lavage de vaisselle sélectionné, de l'eau chaude provenant de l'alimentation externe en eau chaude est utilisée, l'échangeur de chaleur (VB) n'est pas rempli avec de l'eau chaude (WW) à la fin du cycle de rinçage (KG) mais reste vide pendant la durée du cycle de séchage (TG) de ce cycle de lavage.
  2. Lave-vaisselle selon au moins l'une quelconque des revendications précédentes, caractérisé en ce qu'un dispositif de commande (20) est ménagé, lequel permet une sélection manuelle du mode de fonctionnement.
  3. Lave-vaisselle selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que le lave-vaisselle (1) présente une interface de données (20a) qui est ménagée pour recevoir des données d'exploitation de l'alimentation externe en eau chaude (WA), le dispositif de commande de déroulement (19) étant réalisé pour la sélection automatique ou manuelle du mode de fonctionnement à l'aide de données d'exploitation reçues.
  4. Lave-vaisselle selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif d'arrivée d'eau chaude (51) comprend une vanne d'eau chaude (6) et en ce que le dispositif d'arrivée d'eau froide (52) comprend une vanne d'eau froide (8), la vanne d'eau chaude (6) et la vanne d'eau froide (8) étant commandables indépendamment l'une de l'autre au moyen du dispositif de commande de déroulement (19).
  5. Lave-vaisselle selon la revendication 4, caractérisé en ce que la vanne d'eau chaude (6) est disposée sur une extrémité amont d'un tuyau d'eau chaude (7) et est réalisée de manière à ce qu'elle puisse être fixée sur une pièce de raccordement (WH) de l'alimentation externe en eau chaude (WA), et/ou en ce que la vanne d'eau froide (8) est disposée sur une extrémité amont d'un tuyau d'eau froide (9) et est réalisée de manière à ce qu'elle puisse être fixée sur une pièce de raccordement (KH) de l'alimentation externe en eau froide (KA).
  6. Lave-vaisselle selon au moins l'une quelconque des revendications précédentes, caractérisé en ce qu'une pièce de raccordement (10) est ménagée de manière externe au lave-vaisselle (1), et en ce que l'extrémité aval du tuyau d'eau chaude (7) du dispositif d'arrivée d'eau chaude (51) et l'extrémité aval du tuyau d'eau froide (9) du dispositif d'arrivée d'eau froide (52) peuvent être reliées au moyen de la pièce de raccordement (10) de manière conductrice de liquide à un tuyau d'arrivée commun (11) qui peut être couplé ou est couplé à une pièce de raccordement (12) côté appareil, notamment fixé sur le boîtier.
  7. Lave-vaisselle selon au moins l'une quelconque des revendications 1 avec 5, caractérisé en ce qu'une pièce de raccordement (10) est ménagée côté appareil, notamment de manière interne à l'appareil, sur la première entrée de laquelle le dispositif d'arrivée d'eau chaude (51) peut être couplé ou est couplé et sur la deuxième entrée de laquelle le dispositif d'arrivée d'eau froide (51) peut être couplé ou est couplé.
  8. Lave-vaisselle selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que l'alimentation externe en eau chaude (WA) est partiellement ou entièrement alimentée par une installation solaire thermique (TSA).
  9. Procédé de commande d'au moins un cycle de lavage (SG1) d'un lave-vaisselle, notamment d'un lave-vaisselle (1) à usage domestique, qui est réalisé notamment selon au moins l'une quelconque des revendications précédentes, qui présente un dispositif d'arrivée d'eau chaude (51) pour l'amenée d'eau chaude (WW) à partir d'une alimentation externe en eau chaude (WA) ainsi qu'un dispositif d'arrivée d'eau froide (52) pour l'amenée d'eau froide (KW) à partir d'une alimentation externe en eau froide (KA) au moyen d'au moins un programme de lavage (SP1) d'un dispositif de commande de déroulement (19), au moins un programme de lavage (SP1) étant appelé par le dispositif de commande de déroulement (19) dans un premier mode de fonctionnement, lors duquel programme de lavage pour au moins un cycle de lavage partiel (RG, KG) du cycle de lavage (SG1) réalisé par lui, de l'eau chaude (WW) est spécifiquement amenée à partir de l'alimentation externe en eau chaude (WA), et au moins un programme de lavage (SP2) étant appelé par le dispositif de commande de déroulement (19) dans un deuxième mode de fonctionnement, lors duquel pour au moins un cycle de lavage partiel (TG) du cycle de lavage (SG1) réalisé par lui, uniquement de l'eau froide (KW) est spécifiquement amenée à partir de l'alimentation externe en eau froide (KW), caractérisé en ce que le dispositif d'arrivée d'eau chaude (51) ainsi que le dispositif d'arrivée d'eau froide (52) sont commandés au moyen du dispositif de commande de déroulement (19) de manière à ce que dans le premier mode de fonctionnement, pour un premier groupe de un ou de plusieurs cycles de lavage partiels (RG, KG) du cycle de lavage (SG1) réalisé par un programme de lavage de vaisselle (SP1) sélectionné, pour lesquels respectivement une température spécifique d'eau chaude (ST) de bain de lavage supérieure à la température d'eau froide (KT) de l'eau froide (KW) de l'alimentation externe en eau froide (KA) est demandée, de l'eau chaude (WW) provenant de l'alimentation externe en eau chaude (WA) est alimentée dans la cuve de lavage (2) spécifiquement au cycle de lavage partiel au moyen du dispositif d'arrivée d'eau chaude (51), et en ce que pour un deuxième groupe de un ou de plusieurs cycles de lavage partiels (VG, ZG) du cycle de lavage (SG1) du programme de lavage de vaisselle (SP1) sélectionné, pour lesquels la température d'eau froide (KT) de l'eau froide (KW) de l'alimentation externe en eau froide (KA) est suffisante ou demandée respectivement en tant que température d'eau chaude (ST) spécifique de bain de lavage, de l'eau froide (KW) provenant de l'alimentation externe en eau froide (KA) est alimentée dans la cuve de lavage (2) spécifiquement au cycle de lavage partiel au moyen du dispositif d'arrivée d'eau froide (52), un échangeur de chaleur présent de manière externe, notamment sous forme d'une poche d'eau ou d'un réservoir de stockage (VB), qui est placé sur une paroi, notamment une paroi latérale, de la cuve de lavage (2) de manière transférant la chaleur, étant rempli avec de l'eau froide (KW) provenant du dispositif externe d'arrivée d'eau froide (52) à la fin du cycle de rinçage (KG) et/ou au début du cycle de séchage (TG) suivant du cycle de lavage (SG1), et en ce que pour le cas où pour tous les cycles de lavage partiels, avec transport d'eau, du cycle de lavage (SG1) réalisé par un programme de lavage de vaisselle sélectionné, de l'eau chaude provenant de l'alimentation externe en eau chaude est utilisée, l'échangeur de chaleur (VB) n'est pas rempli avec de l'eau chaude (WW) à la fin du cycle de rinçage (KG) mais reste vide pendant la durée du cycle de séchage (TG) de ce cycle de lavage.
EP09782716.6A 2009-06-10 2009-09-07 Lave-vaisselle doté de deux raccordements en eau et procédé de commande Active EP2440104B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09782716T PL2440104T3 (pl) 2009-06-10 2009-09-07 Zmywarka do naczyń z dwoma przyłączami wody i sposób sterowania

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
DE200910026877 DE102009026877A1 (de) 2009-06-10 2009-06-10 Geschirrspülmaschine mit zwei Wasseranschlüssen sowie Steuerungsverfahren
DE200910026879 DE102009026879A1 (de) 2009-06-10 2009-06-10 Geschirrspülmaschine mit geräteseitiger Wassereinlasseinrichtung
DE102009026876A DE102009026876A1 (de) 2009-06-10 2009-06-10 Geschirrspülmaschine mit Wärmetauscher sowie zugehöriges Steuerungsverfahren
DE200910026911 DE102009026911A1 (de) 2009-06-10 2009-06-10 Geschirrspülmaschine mir zwei Wasseranschlüssen sowie Steuerungsverfahren
DE200910026878 DE102009026878A1 (de) 2009-06-10 2009-06-10 Geschirrspülmaschine mit automatischer oder manueller Anwahl von Warmwasserbezug sowie Steuerverfahren
DE102009026887A DE102009026887A1 (de) 2009-06-10 2009-06-10 Geschirrspülmaschine mit zwei Wasseranschlüssen sowie zugehöriges Steuerungsverfahren
DE200910026904 DE102009026904A1 (de) 2009-06-10 2009-06-10 Geschirrspülmaschine mit einer Enthärtungseinrichtung sowie zugehöriges Wartungsverfahren
DE102009029148A DE102009029148A1 (de) 2009-09-02 2009-09-02 Geschirrspülmaschine sowie zugehöriges Steuerverfahren
DE102009039847A DE102009039847A1 (de) 2009-09-03 2009-09-03 Geschirrspülmaschine
PCT/EP2009/061578 WO2010142351A1 (fr) 2009-06-10 2009-09-07 Lave-vaisselle doté de deux raccordements en eau et procédé de commande

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EP2440104A1 EP2440104A1 (fr) 2012-04-18
EP2440104B1 true EP2440104B1 (fr) 2020-04-15

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US10466727B2 (en) 2016-11-22 2019-11-05 Haier US Appliance Solution, Inc. Water supply system and a method for operating the same
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WO2010142351A1 (fr) 2010-12-16
EP2440104A1 (fr) 2012-04-18
US8945315B2 (en) 2015-02-03
WO2010142351A8 (fr) 2011-12-15
US20120125373A1 (en) 2012-05-24
PL2440104T3 (pl) 2020-09-21

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