WO2010142561A1 - 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
WO2010142561A1
WO2010142561A1 PCT/EP2010/057585 EP2010057585W WO2010142561A1 WO 2010142561 A1 WO2010142561 A1 WO 2010142561A1 EP 2010057585 W EP2010057585 W EP 2010057585W WO 2010142561 A1 WO2010142561 A1 WO 2010142561A1
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WO
WIPO (PCT)
Prior art keywords
hot water
cold water
dishwasher
water supply
water inlet
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.)
Ceased
Application number
PCT/EP2010/057585
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German (de)
English (en)
Inventor
Roland Rieger
Michael Rosenbauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of WO2010142561A1 publication Critical patent/WO2010142561A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0047—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
    • A47L15/42—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
    • 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
    • A47L2401/34—Other automatic detections
    • 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 water inlet device, which has a hot water inlet and a cold water inlet, wherein the hot water inlet for receiving hot water from an external hot water supply and the cold water inlet for receiving cold water from an external cold water supply are provided, wherein a downstream end of the hot water inlet and a downstream end of the cold water inlet are connected via a connecting piece liquid-conducting with a supply hose which is connected to a housing-fixed connection piece of the dishwasher, and with a sequence control device for controlling a wash cycle for cleaning items to be washed.
  • the items to be washed are introduced into a washing container and are there cleaned in a rinsing process, which is also called a rinse, with the aid of water and then dried.
  • the aim is to perform a rinse so that a predefined cleaning result and a predefined drying result are achieved as efficiently as possible.
  • Demanded is a high overall efficiency, 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 purpose, wherein the effort can include several dimensions, for example the energy requirement, the water requirement and / or the time required.
  • the drying efficiency corresponds to the ratio of the drying result achieved by means of a rinse cycle and the effort required for this purpose, wherein the effort here can also include several dimensions, for example the energy requirement and / or the time required.
  • wash programs for controlling a wash cycle for cleaning Wash ware are stored.
  • the sequence control device is designed such that it automatically controls a rinse cycle according to a rinse program usually selected by an operator.
  • the water required for carrying out rinses can be taken up in known dishwashers via a water inlet device, which can receive water, for example, from a water supply installed on the building side.
  • a washing program has several successive program steps for the treatment of the items to be washed, wherein the water is provided in the water-conducting program steps depending on the respective program step with cleaning and / or additives and is brought to a favorable temperature for the respective program step.
  • modern dishwashers usually have automatic dosing devices.
  • dishwashers can usually have an electric heater to bring the water intended for rinsing to the required temperatures.
  • a typical washing program comprises for cleaning the items to be washed in this order a pre-washing step, a cleaning step, an intermediate rinsing step and a rinsing step in which the items to be washed are each subjected to water.
  • a pre-washing step for cleaning the items to be washed in this order.
  • a cleaning step for cleaning the items to be washed in this order.
  • an intermediate rinsing step and a rinsing step in which the items to be washed are each subjected to water.
  • rinse programs are possible in which one or more of these program steps are repeated several times.
  • a typical washing program includes an adjoining drying step for drying the cleaned items to be washed.
  • a pre-rinse step serves primarily to remove coarse contaminants from the items to be washed.
  • the purpose of a subsequent cleaning step is to completely remove contaminants from the dishes.
  • a now performed intermediate rinsing step serves in particular for the removal of detergent residues which adhere to the items to be washed.
  • a subsequent rinsing step is in particular to avoid stains on the items to be washed, which could arise due to dissolved substances in the water, such as, for example, salt and / or lime. seen.
  • the water is added during the rinse step with rinse aid.
  • another object of the rinsing step is to prepare the subsequent drying step.
  • the items to be washed are heated to a high temperature during the rinse step.
  • water droplets adhering to the hot items evaporate and are deposited on the inside of the rinse container due to the lower temperature prevailing there.
  • the object of the present invention is to provide a dishwasher which causes lower energy costs during operation.
  • Hot water supply system which is in particular at least partially powered by a solar thermal system, is provided, wherein the flow control device has a first mode in which at least one rinsing program can be called, which provides a hot water from the hot water supply in a rinse, and wherein the flow control device a second operating mode, in which at least one rinsing program can be called, which only provides a use of cold water from the cold water supply in a rinse cycle.
  • the supply of external hot water supply can be partially or completely, in particular by a solar thermal system, as this alone with the primary energy of the sun (and not fossil fuels) a partial or complete contribution to the heating of water in the external hot water supply, especially CO 2 - neutral, causes.
  • a cost-effective hot water supply can, in addition to or in addition to a solar system in the household possibly also by a modern condensing boiler such.
  • the combination of a pellet stove with a solar thermal system to be energetically advantageous.
  • a thermal solar system is a technical system for converting solar energy into usable thermal energy.
  • This thermal solar systems usually provide hot water in a temperature range of, for example, 40 0 C to 70 0 C ready, which makes a direct use of hot water for heating buildings but also as service water possible.
  • Thermal solar systems typically include a plurality of solar panels having 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 that generates the hot water.
  • the dishwasher according to the invention enables the efficient use of inexpensive, in particular by means of a solar system, generated hot water.
  • the sequence control device has a first operating mode in which at least one rinsing program can be called, which provides for a rinse the use of hot water from the hot water supply, and wherein the flow control device has a second mode in which at least one rinsing program can be called, which at a Rinse only a use of cold water from the cold water supply provides.
  • the first operating mode is therefore a hot water operation, in which for a rinse at least partially hot water from the, in particular solar thermal assisted, hot water supply system is used, while it is a pure cold water operation in the second mode, in which for a rinse exclusively Cold water from the cold water supply is used.
  • the first mode of operation allows efficient rinse cycles when the cost savings due to the reduction of the internal heating requirement of the dishwasher is greater than the additional cost of operating the hot water supply resulting from the removal of hot water.
  • the second mode of operation allows efficient rinsing operations when the cost savings due to the reduction of the internal heating requirement of the dishwasher is lower than the additional cost of operating the hot water supply resulting from the removal of hot water.
  • the solar panels provide a heat surplus in relation to the other requirements of the household, this excess heat can be used to reduce the internal energy requirement of the dishwasher in a simple manner by selecting the first operating mode. If, on the other hand, the solar collectors provide too little heat in relation to the heat demand of the household, it can be prevented by selection of the second operating mode that heat is withdrawn from the hot water supply, which would have to be compensated by heating with the usually more expensive additional heating.
  • the wash programs which can be called upon selection of the first operating mode are specially adapted to the use of hot water from the external hot water supply, which is supplied in particular by a thermal solar system.
  • the wash programs which can be called upon selection of the second operating mode are specially adapted to the use of cold water with regard to their chronological sequence. In both cases, such a predetermined cleaning effect or drying effect can be achieved with high efficiency.
  • corresponding rinsing programs can be provided, which are similar by a substantially identical cleaning action and / or drying effect.
  • corresponding Normal Nursingprogramme corresponding intensive programs, corresponding Schonungen programs or corresponding automatic programs may be provided.
  • the corresponding programs can alternatively or additionally be designed as quick-flushing programs.
  • At least one washing program can be called in the first operating mode, which provides at least one program step for washing items to be washed using hot water from the hot water supply.
  • hot water may be taken from the external water supply for this program step in the first mode.
  • a program step for rinsing items to be washed can be, in particular, a cleaning step and / or a rinsing step, since it is generally provided there that the items to be washed are treated with relatively hot water.
  • the hot water can be taken before or during the respective program step.
  • a recording of hot water for such a program step is particularly energy and more cost-effective than a recording of cold water when the hot water supply system, in particular thermal solar system, provides sufficient heat energy.
  • the reason for the increased cost efficiency is that when receiving hot water, the internal electrical energy consumption of the dishwasher for a rinse by a reduced electrical energy consumption for heating the absorbed water drops significantly. This can lead to a significant reduction in household electricity costs. In this way, an increase in efficiency compared to a dishwasher can be achieved, which is provided exclusively for connection to a cold water supply.
  • the first operating mode at least one washing program can be called, which at a Rinse additionally provides for the use of cold water from the cold water supply.
  • the first mode is a combined hot and cold water operation.
  • the at least partial use of cold water from the external cold water supply makes it possible to efficiently carry out program steps in which the use of high-temperature water has no advantages or even disadvantages.
  • the recording of the cold water before or during the respective program step can be done.
  • the first operating mode can also be usefully selected if the solar collectors supply comparatively little heat energy.
  • an operating device which enables a manual selection of the operating mode.
  • Such an operating device allows the operator to decide for himself whether hot water may be used, or whether only cold water should be recorded.
  • the operating device may be, for example, an additional button, which is arranged on a control panel of the dishwasher. But it is also possible to provide for switching the operating mode operating devices, which are already provided for other operating procedures. Conceivable are multifunction buttons, knobs, touch screens, alphanumeric input units and the like.
  • the dishwasher has a data interface, which is provided for receiving operating data of the hot water supply system, in particular solar thermal system, wherein the flow control device is designed for automatic selection of the operating mode based on received operating data.
  • operating data can be, for example, information relating to the power of the hot water supply system, in particular of the solar collectors, or information relating to the amount of heat stored in a heat accumulator of the solar system. In this way, an automatic selection of each more efficient mode is possible.
  • the hot water inlet comprises a hot water valve and the cold water inlet comprises a cold water valve, wherein the hot water valve and the cold water valve are independently controllable by the sequence control device.
  • the hot water valve is arranged at an upstream end of a hot water hose and adapted to be fastened to a fitting 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 is formed so that it is attachable to a connector of the external cold water supply.
  • the hot water valve and / or the cold water valve can for this purpose have connection threads, for example, which correspond with threads of household faucets.
  • Such valves are also known as Aquastop valves.
  • the arrangement of the hot water valve and / or the cold water valve at the upstream end of the water inlet device has the advantage that practically no leakage water can escape from the dishwasher even in the event of damage as long as the valves are closed. If the valves are designed to close when not energized, leaking of leakage water from a switched-off dishwasher is prevented in virtually all cases.
  • the flow control device may be associated with a leak water sensor for detecting leakage water, so that the flow control device can close the valves when leak water occurs during operation of the dishwasher.
  • the connecting piece is provided externally of the dishwasher, and that the downstream end of the hot water hose and the downstream end of the cold water hose via the connecting piece are liquid-conductively connected to a supply hose, which is connected to the device-side, in particular housing-fixed connection piece the dishwasher can be coupled or coupled.
  • a supply hose which is connected to the device-side, in particular housing-fixed connection piece the dishwasher can be coupled or coupled.
  • Such Y-branch-like design of the water supply device is structurally simple and significantly shortens the hose length required in many cases, in particular if the connection points of the external hot water supply and the external cold water supply continue from the place of installation of the dishes. Dishwasher are removed, since in this case can be dispensed with two longer parallel tubes.
  • connection piece may be provided together with the Y-connection piece in the region of the base assembly on or in this.
  • the invention also relates to a method for controlling at least one rinse cycle of a dishwasher, in particular domestic dishwasher, by means of at least one rinse program a flow control device wherein the dishwasher a water inlet device with a hot water inlet for receiving hot water from an external hot water supply and a cold water inlet for receiving cold water from an external cold water supply and wherein a downstream end of the hot water inlet and a downstream end of the cold water inlet are connected via a connecting piece liquid-conductively connected to a housing-fixed connection piece of the dishwasher, which is characterized in that of the flow control device in a first mode for at least one program step at least one rinsing program for rinsing Warm water from the external hot water supply, which in particular for is partially fed by a solar thermal system is used, and is used in a second mode for at least one program step at least one wash program for rinsing ware cold water from the external cold water supply.
  • Figure 1 is a schematic spatial representation of an advantageous embodiment of a dishwasher according to the invention
  • FIG. 2 is a block diagram of the dishwasher of Figure 1;
  • FIG. 3 shows a wash program of a first operating mode of the dishwasher of FIG. 1 and FIG. 3
  • FIG. 4 shows a wash program of a second operating mode of the dishwasher of FIG. 1.
  • a schematically illustrated water inlet device 5 On the back of the dishwasher 1, a schematically illustrated water inlet device 5 is arranged. This has a hot water inlet 6, 7 and a cold water inlet 8, 9, wherein the hot water inlet 6, 7 for receiving hot water from an external hot water supply or hot water Water supply system WH, in particular hot water line, and the cold water inlet 8, 9 for receiving cold water from an external cold water supply KH, in particular cold water line, is provided.
  • the hot water inlet 6, 7 include a controllable hot water valve 6 and the cold water inlet 8, 9 a controllable cold water valve 8.
  • the hot water valve 6 and cold water valve 8 are basically constructed identically.
  • both valves 6, 8 may be formed as a solenoid valve.
  • the inlet sides of the valves 6, 8 are each formed so that they can be attached to fittings WH, KH a household water supply, for example, to faucets WH, KH, can be attached.
  • the connection can be made in each case by means of a screw connection, a snap connection or the like.
  • Such valves 6, 8 are also known under the name Aquastop valve 6, 8.
  • these are closed when they are not activated, so that the dishwasher 1 is disconnected from the water supply in the off state. In this way, leakage of leakage water from the switched-off dishwasher 1 can be avoided in the event of a fault.
  • the inlet side of the hot water valve 6 is connected to a hot water tap WH and the inlet side of the cold water valve 8 to a 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 with a cold water hose 9, wherein the downstream ends of the hot water hose 7 and the cold water hose 9 are connected to an input side of a connecting piece 10.
  • a common inlet hose 1 1 connects for hot water and cold water, 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 1 1 can be used as safety hoses with an internal water hose.
  • the connecting piece 10 may be formed such that the leakage water passages 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 during operation of the dishwasher 1 in the region of the water inlet device 5, is passed through the housing-fixed connector 12 in 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.
  • connection piece 12 may be provided together with the Y-connector in the region of the base assembly on or in this.
  • a free flow path 13 Downstream of the housing-fixed connection piece 12, a free flow path 13 is provided.
  • a so-called pipe interruption which serves to prevent a sucking back of water from the dishwasher 1, if in the external water supply by dynamic processes, a negative pressure. This prevents in particular that already used water, which may be mixed with dirt, cleaning agents and / or cleaning agents, gets back into the building water supply.
  • the dishwasher 1 also has components not shown in FIG. 1, which make it possible to direct hot water and / or cold water from the outlet of the free flow path 13 into the washing container 2.
  • a pump pot 16 is provided, in which a circulating pump is suitably provided for circulating water in the washing container 2 during a rinse cycle.
  • the circulation pump may have a heating device for heating the water located in the washing container 2, for example a water heater.
  • a pump for pumping out water for example at the end of a rinse cycle, be provided.
  • the various pumping functions can also be perceived by a single pump in conjunction with switchable valves.
  • the sump 16 is usually connected to a waste water connection piece 17 via means not shown so that water from the washing compartment 2 via a connected to the wastewater connection piece 17 sewage hose 18 in a building side installed wastewater A, such as a sewer pipe A, can be pumped.
  • the hot water inlet 6, 7 of the dishwasher 1 is intended to an external hot water supply WH, which is powered by a solar thermal system TSA with hot water, connected.
  • the thermal solar system TSA comprises a large number of solar collectors SOK, of which only one is shown for reasons of space.
  • the solar collectors SOK each have an absorber surface, not shown, which can be heated by the electromagnetic solar radiation. From there, the heat can be transported by means of a fluid to a heat exchanger WT, which generates the hot water for the hot water supply WH.
  • the dishwasher 1 also has a sequence control device 19 for controlling the course of a rinse cycle after a rinse program.
  • the sequence control device has a first operating mode, in which one or more rinsing Program can be called, which at least partially provide a use of hot water from the hot water supply WH in a rinse.
  • the flow control device has a second operating mode, in which one or more washing programs can be called, which only provide for a rinse cycle use of cold water from the cold water supply KH.
  • the sequence control device 19 is connected to an operating device 20, which is arranged on a control panel of the door 3 of the washing compartment 2.
  • the flow control device 19 itself is arranged inside the door 3. However, both could also be arranged elsewhere on the dishwasher 1.
  • the operating device allows the operator to manually set the desired operating mode and manually select an individual program available in the selected operating mode.
  • the dishwasher 1 has a data interface 20a, which is provided for receiving operating data of the hot water supply. For this purpose, it can be connected via a data line, for example, with a control of the solar thermal system.
  • the data interface 20a is furthermore connected to the sequence control device 19, wherein the sequence control device 19 is designed to automatically select the mode based on the received operating data.
  • the dishwasher 1 it is possible for the dishwasher 1 to automatically switch to the second operating mode if the power of the solar collectors SOK falls below a certain limit value. It is also possible to automatically control the operating mode as a function of the temperature in the heat exchanger WT. It can also be provided that is automatically changed to the second mode when the auxiliary heater ZH is turned on.
  • FIG. 2 shows a block diagram of the dishwasher of Figure 1.
  • the hot water valve 6 and the cold water valve 8 are each connected to the flow control device 19, that both are individually controlled. This makes it possible to feed the washing container 2 of the dishwasher 1 via the connecting piece 10, the free flow path 13 and a drain 21 specifically with hot water and / or cold water.
  • a circulation pump 22 designed as a heating pump is arranged, which is connected to a spray system 23 arranged inside the washing compartment 2. This makes it possible to apply in the washing container 2 arranged items to be washed during a wash with water to clean this.
  • a drain pump 24 is arranged in the sump, which makes it possible to pump out no longer needed water to the outside.
  • both the heating function of the electrical heating device and the pumping function can be individually controlled by the sequence control device 19.
  • the flow control device 19 is also connected to the drain pump 24 for the control thereof.
  • the operating device 20 is connected to the sequence control device 19 such that operating commands can be transmitted from the operating device 20 to the sequence control device 19.
  • the data interface 20a is connected to the sequence control device 19 such that the operating data of the solar thermal system TSA received by the data interface 20a can be transmitted from the data interface 20a to the sequence control device 19.
  • FIG. 3 shows an exemplary washing program SP1 of the dishwasher 1 of FIGS. 1 and 2, which can be selected in the first operating mode.
  • the wash program SP1 is intended to control a wash cycle when the hot water supply device 6, 7 of the dishwasher 1 is supplied with solar thermal generated hot water from a thermal solar system TSA.
  • FIG. 3 shows on a common time axis t the curves SWV, SKV, BAP and BSB which indicate switching or operating states of components of the dishwasher 1 on the vertical axis Z.
  • 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 in each case a closed valve 6, 8, the switching state "1” an open Valve 6, 8.
  • the curve BAP continues to represent the operating state of the sewage pump 24, wherein the off state is symbolized by "0" and the on state by "1".
  • the curve BSB shows the charging state of the washing container 2 with water.
  • a with hot water from the hot water supply WH charged rinse tank 2 with "WW” a supplied with cold water from the cold water supply KH washing tank 2 with "KW” and an empty washing container 2 by "0".
  • FIG. 3 shows, by way of example, a rinsing program SP1, which in this sequence comprises a pre-rinsing step VS, a cleaning step RS, an intermediate rinsing step ZS, a rinsing step KS and a drying step TS. It is therefore a typical normal rinsing program SP1, which is intended for cleaning normally soiled items. In other examples, one or more of these steps might be hidden. Also examples would be possible in which one or more steps are repeated several times.
  • the first pre-rinsing step VS serves to remove coarse contaminants from the dishes so as to prepare the cleaning step RS.
  • the cold water valve 8 is opened at the beginning of Vor Togetherarias VS until the washing container 2 is charged with a sufficient amount of cold water from the cold water supply KH.
  • This cold water is circulated by the circulating pump 22 for a predetermined time, usually without switching on their heating, so as to pressurize the dishes with cold water. Thereafter, the now contaminated cold water is pumped out by means of the drain pump 24 to the outside.
  • the subsequent cleaning step RS is used to thoroughly clean the dishes.
  • the hot water valve 6 is opened at the beginning of the cleaning step RS until the washing container 2 is charged with a sufficient amount of hot water from the hot water supply WH.
  • the filled in the washing container 2 hot water is now circulated by means of the circulation pump 22 for a predetermined time, so as to pressurize the dishes with hot water.
  • the heating device of the circulation pump 22 can be switched as needed as a function of the temperature of the supplied hot water and in dependence on the intended rinse temperature of the cleaning step RS.
  • the now polluted hot water is pumped out by means of the drain pump 24 to the outside.
  • the cleaning step RS it is usually necessary to apply water to the wash ware, which has a comparatively high temperature in order to achieve a high thermal cleaning effect.
  • water is generally added to the detergent whose chemical cleaning action is best at a higher temperature.
  • a temperature of about 50 0 C to 70 0 C is provided for a cleaning step RS.
  • the now performed intermediate rinse step ZS for removing detergent from the items to be washed after the cleaning step RS also provides a loading of the washing container 2 with cold water from the cold water supply KH before to be able to apply the wash ware with cold water.
  • the cold water valve 8 is opened until the washing container 2 is charged with a sufficient amount of cold water for the intermediate rinsing step ZS.
  • This cold water is circulated by means of the circulation pump 22 for a predetermined time, which as a rule can be omitted connecting their heating device. Thereafter, the now contaminated cold water is pumped out by means of the drain pump 24 to the outside.
  • the hot water valve 6 is first opened again until the washing container 2 is charged with a sufficient amount of hot water from the hot water supply WH for the final rinse step KS.
  • the filled in the washing container 2 hot water is now circulated by means of the circulation pump 22 for a predetermined time, so as to pressurize the dishes with hot water.
  • the electric heating device of the circulating pump 22 can be switched on as required as a function of the temperature of the hot water supplied and as a function of its intended rinsing temperature.
  • the now polluted hot water is pumped out by means of the drain pump 24 to the outside.
  • a rinse step KS is used 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 water is added during the rinse step KS with rinse aid.
  • Another object of the rinsing step KS is to prepare a subsequent drying step TS.
  • the dishes are heated by hot water in particular, comprising, for example, a temperature of 60 0 C to 75 ° C, is used during the rinsing step KS.
  • FIG. 4 shows an exemplary washing program SP2 of the dishwasher 1 of FIGS. 1 and 2, which can be selected in the second operating mode.
  • the wash program SP2 is intended to control a wash cycle when the hot water supply WH is supplied with hot water generated by the auxiliary heater ZH.
  • the rinsing program SP2 is likewise a normal rinsing program SP2, which corresponds to the normal rinsing program SP1 described above in such a way that it has a substantially identical cleaning and drying action.
  • the difference is that the wash program SP2 only provides for the use of cold water from the cold water supply KH. This avoids that the hot water supply WH heat energy is withdrawn, for example, if the solar panels SOK supply too little heat energy.
  • program steps RS, KS in which it is necessary or desirable to apply the wash ware with water at a higher temperature, ie in particular in the cleaning step RS and Klar Hughes suits KS, provided for acting on the wash water by means of the electric heater, in particular water heater, the Circulation pump 22 are heated.
  • the required additional costs for the electrical energy of the heating of the circulation pump are in many cases less than the additional costs that would be incurred if an additional heating ZH for the solar thermal system TSA would have to be turned on due to an additional hot water withdrawal.
  • the invention relates in an advantageous embodiment, a dishwasher with an additional function key in particular for the selection of hot water from a hot water solar system.
  • two water connections are expediently provided which can be controlled separately with each valve, in particular an Aquastop valve. That
  • the dishwasher has a bithermic water connection with hot water inlet and cold water inlet.
  • a water connection is therefore for hot water, especially warm inexpensive solar water, another water connection is provided for cold water from the mains. Both water connections can be individually selected via a control of the dishwasher. After the two valves, the water then flows through a Y-piece in a hose to a dishwashing system of the dishwasher.
  • the dishwasher has now received an additional function key (solar button), which can be arranged on the panel.
  • solar button When this button is pressed, special flushing sequences can be activated in the control unit, which are designed for the hot water of a hot water solar system.
  • the manual selection can be omitted if the dishwasher z. B. by data transmission, the information is transmitted, in which way - solar or eg with fuel oil - just heated.
  • the dishwasher can now respond to this change by pressing the auxiliary function button in various ways to achieve the goal of getting as good energy-saving good rinsing and drying performance.
  • the customer can even in the summer months in bad weather or at the transition to the winter months his dishwasher switch to cold water operation by pressing a button when the hot water solar system too little energy is fed into the hot water tank.

Landscapes

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

Abstract

L'invention concerne un lave-vaisselle, notamment un lave-vaisselle ménager (1), comportant un dispositif d'alimentation en eau (5) qui comporte une conduite d'arrivée d'eau chaude (6,7) et une conduite d'arrivée d'eau froide (8,9), la conduite d'arrivée d'eau chaude (6,7) recevant l'eau chaude d'une source externe d'alimentation en eau chaude (WH) et la conduite d'arrivée d'eau froide (8,9) recevant l'eau froide d'une source externe d'alimentation en eau froide (KH), une extrémité située en aval de la conduite d'arrivée d'eau chaude (6,7) et une extrémité située en aval de la conduite d'arrivée d'eau froide (8,9) étant raccordées à un tuyau d'alimentation (11) par un élément de raccordement (10) pour l'écoulement de liquides, lequel tuyau d'alimentation est lui-même relié à un élément de branchement (12) fixé au bâti du lave-vaisselle (1), ainsi qu'un dispositif de programmation (19) pour la commande d'un cycle de lavage de la vaisselle. Selon l'invention, la conduite d'arrivée d'eau chaude (6,7) reçoit l'eau chaude d'une source externe d'alimentation en eau chaude (WH) qui est au moins notamment partiellement alimentée par une installation solaire thermique (TSA), et le dispositif de programmation (19) comporte un premier mode de fonctionnement, dans lequel il est possible de sélectionner au moins un programme de lavage (SP1) qui prévoit, pour un cycle de lavage, l'utilisation de l'eau chaude de la source d'alimentation en eau chaude (WH), ainsi qu'un deuxième mode de fonctionnement, dans lequel il est possible de sélectionner au moins un programme de lavage (SP2) qui prévoit, pour un cycle de lavage, exclusivement l'utilisation de l'eau froide de la source d'alimentation en eau froide (KH).
PCT/EP2010/057585 2009-06-10 2010-06-01 Lave-vaisselle doté de deux raccordements en eau et procédé de commande Ceased WO2010142561A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910026911 DE102009026911A1 (de) 2009-06-10 2009-06-10 Geschirrspülmaschine mir zwei Wasseranschlüssen sowie Steuerungsverfahren
DE102009026911.8 2009-06-10

Publications (1)

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WO2010142561A1 true WO2010142561A1 (fr) 2010-12-16

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DE (1) DE102009026911A1 (fr)
WO (1) WO2010142561A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH576091A5 (en) * 1975-01-31 1976-05-31 Zug Verzinkerei Ag Crockery washing machine mixing valve - has mixing chamber thermostat regulating cold water valve discharge into chamber
DE3023355A1 (de) * 1980-06-21 1982-01-14 Willi Dipl.-Volksw. 7560 Gaggenau Bauer Wasserversorgungseinrichtung, insbesondere fuer haushaltsgeraete
DE10046347A1 (de) * 2000-09-19 2002-03-28 Bsh Bosch Siemens Hausgeraete Wasserzufuhreinrichtung für Haushaltgeräte
DE10057263A1 (de) * 2000-11-18 2002-05-23 Aeg Hausgeraete Gmbh Hausgerät mit einer Programmablaufsteuerung
DE10226736A1 (de) * 2001-06-19 2003-01-02 Marquardt Gmbh Wasserzulauf für ein Haushaltsgerät
DE20319404U1 (de) * 2003-12-15 2005-03-24 Merlaku Kastriot Wassertemperatur-Steuer-Gerät für die Wasserleitung der Wasch- oder Spülmaschine
DE202005019491U1 (de) * 2005-01-26 2006-02-23 BSH Bosch und Siemens Hausgeräte GmbH Ventilgesteuerte Zulaufvorrichtung für wasserführende Haushaltgeräte
EP1902658A1 (fr) * 2006-09-19 2008-03-26 Silvano Gaiotto Dispositif pour le lavage économique et écologique de vêtements ou de vaisselle

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH576091A5 (en) * 1975-01-31 1976-05-31 Zug Verzinkerei Ag Crockery washing machine mixing valve - has mixing chamber thermostat regulating cold water valve discharge into chamber
DE3023355A1 (de) * 1980-06-21 1982-01-14 Willi Dipl.-Volksw. 7560 Gaggenau Bauer Wasserversorgungseinrichtung, insbesondere fuer haushaltsgeraete
DE10046347A1 (de) * 2000-09-19 2002-03-28 Bsh Bosch Siemens Hausgeraete Wasserzufuhreinrichtung für Haushaltgeräte
DE10057263A1 (de) * 2000-11-18 2002-05-23 Aeg Hausgeraete Gmbh Hausgerät mit einer Programmablaufsteuerung
DE10226736A1 (de) * 2001-06-19 2003-01-02 Marquardt Gmbh Wasserzulauf für ein Haushaltsgerät
DE20319404U1 (de) * 2003-12-15 2005-03-24 Merlaku Kastriot Wassertemperatur-Steuer-Gerät für die Wasserleitung der Wasch- oder Spülmaschine
DE202005019491U1 (de) * 2005-01-26 2006-02-23 BSH Bosch und Siemens Hausgeräte GmbH Ventilgesteuerte Zulaufvorrichtung für wasserführende Haushaltgeräte
EP1902658A1 (fr) * 2006-09-19 2008-03-26 Silvano Gaiotto Dispositif pour le lavage économique et écologique de vêtements ou de vaisselle

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