DE10257826A1 - Dishwasher and method for operating a dishwasher when using a combination preparation with several active ingredients - Google Patents

Abstract

The invention relates to a dishwasher which contains a means for switching on an additional function “3 in 1”, wherein by switching on this additional function at least one washing parameter of the selected washing program can be changed with regard to the use of a combination preparation “3 in 1”. Furthermore, two methods for operating a dishwasher with a "3 in 1" combination preparation are proposed, with a first method changing the selected washing program in its course at least in one method step when the additional function is switched on. Furthermore, a second washing program, which can be selected by the user, for operating a dishwasher for the use of combination preparations "3 in 1" is proposed, which is adapted to the use of a combination preparation "3 in 1" in the process sequence regardless of the activation of the additional function "3 in 1" is.

Description

The invention relates to a dishwasher according to the The preamble of claim 1 and two methods of operating one Dishwasher according to the preamble of claim 10 and according to the preamble of claim 13.

For some time now there have been so-called "3in1" - Combination preparations for use in dishwashers available, which together a cleaning substance, a Contain softening agent and a rinse aid and the Dishwasher rinse tank at a specific time can be fed simultaneously. This "3in1" - Combination preparations are so-called compressed tablets. "3in1" tabs also available as "3in1" powder. The 3in1 Combination preparations can be provided in the metering devices in the dishwasher, in this case will they be at some point by the Washing program sequence of the dishwasher is determined, the Rinse tank added. On the other hand, you can also use the User of the dishwasher in the dishwasher, e.g. B. in the cutlery basket before switching on the washing program be placed. The user of a dishwasher today stands out generally more than a selectable wash program for Clean the set in the dishwasher dirty dishes are available. As selectable Rinse programs are sufficient programs under the name short program, Normal program, intensive program, eco program, for those too Various synonymous concepts exist, known. Since the use of "3in1" combination preparations by the Dishwasher users have Customer complaints to the manufacturers of the dishwashers heaped. Because the cleaning and / or drying results of the in the dishwasher cleaned items sometimes dramatic when using 3in1 preparations compared to conventional individual metering of the corresponding Substances worsened. Has proven to be particularly problematic proved that, on the one hand, users are required Localization of the 3in1 combination product in the Disregard the dishwasher, so that some of the 3in1 tabs in the Dishwasher while by the manufacturer Use only prescribed by dosing device is. Furthermore, the information of the manufacturers of the "3in1" - Combination preparations with regard to the selection of a suitable one Rinsing program is inappropriate, since the user of the Dishwasher in general knows which washing program it is in Dependence of the degree of contamination and drying of the Must select dirt particles, but no more intimate knowledge about the course of the washing program itself. This knowledge the manufacturer of the 3in1 combination preparation implies in the User and also completely ignores that Various "3in1" combination preparations are available on the market are, depending on various parameters dissolve differently and accordingly to different Achieve their highest effectiveness at times. That's how some work 3in1 combination products available on the market according to a so-called "Dilution principle" (also known as carry over principle), d. H. at the start of cleaning, the 3in1 Combination preparation added and begins to dissolve. Mainly the rinse aid is initially at a high level Concentration, d. H. overdosed and it will assumed that as a result of kidnapping in Rinsing water residues and adhesions of the dissolved rinse aid on wash ware, Rinse tank walls and the ceiling of the rinse tank as well The concentration in the rinse aid is still sufficient, to achieve a particularly good drying result. A another embodiment of the 3in1 combination preparation provides that initially only the cleaner and softener dissolve and the rinse aid that comes in a 3in1 combination encapsulated, e.g. B. is in the form of a wax-coated pearl itself only depending on temperature and / or pH during the Rinse dissolves. When using a washing program, which Already in the program section cleaning with high temperatures works and / or where the duration of the cleaning process is very long what is generally chosen for an intensive program The rinse aid of the second type mentioned is common already resolved. The rinse aid of the first type has especially the disadvantage that when running multiple Rinse program sections before rinsing, e.g. B. cleaning, Intermediate rinsing, the latter known to be between the Program sections cleaning and rinsing is switched, itself dissolves too quickly and thereby by multiple No more rinse liquid change in the rinse program section there is sufficient concentration. Another shortcoming the use of 3in1 combination products can occur if the user of the dishwasher is dosing by inserting e.g. B. a 3in1 tab, before starting the rinse programs anywhere on the dishwasher, however not in the dosing combination. Here begins e.g. B. at least the detergent and Softener to dissolve, generally in laboratory tests it was found that the dissolution behavior of the 3in1 combination preparations also with water, which in the Has essential supply temperature is very good. By Pumping is available in the following program sections, cleaning, if necessary, provided program sections intermediate rinsing, Rinse off, the substances of the 3in1 combination preparation in one lower concentration available, which has direct impact on both the cleaning and drying results of the wash ware and generally worsens it.

It is an object of the invention, a dishwasher and two methods of operating a dishwasher propose the at least one of the disadvantages mentioned above overcome and provide a rinse program, which on the use of combination preparations with several Active ingredients is adjusted or is adapted to the user the basic use of the previously known washing programs should continue to be made possible.

The above object is achieved by a dishwasher according to the features of claim 1 and by one Method according to the features of claims 11 and 14 solved.

According to the device of the proposed invention is on a dishwasher at least one washing program, such as. B. Intensive program, normal program, short program, eco program, selectable by the user of the dishwasher. The Selection tools are usually located in a control panel of the Dishwasher and are well known as such.

According to the invention, a switchable additional function provided by the use of combination products with several active ingredients such a use Program control is displayed. As a result, the user-selected washing program, such as Intensive program, normal program, short program, eco program, on the Use of a combination preparation, in particular Cleaning substance, softening substance and rinse aid includes, is automatically adjusted. That is, at If the additional function is switched on, a corresponding signal is sent to the Given control unit, the automatic adjustment of each user-selected washing program for use of combination products. This includes, for example various control flow routines in the microcontroller Control unit, which is used, and / or on various parameters of the washing programs, such as Temperature, duration of a certain washing program section, Flushing liquid filling volume, pH value u. a. is defined or intervened and thereby changed. An alternative Solution represents an additional function in which a shutdown a switching means acts according to the invention. In another Embodiment of the invention is a specially designed Rinse program for special use with a Combination preparation among other wash programs as such selectable.

The additional function on the use of a is preferred "3in1" combination preparation designed, this Combination preparation as action-specific substances for cleaning the Wash items essentially only detergent substance, Contains softener and rinse aid. Regardless of these The "3in1" combination preparation can also contain other ingredients Have substances whose direct or indirect influence on the cleaning and drying result of individual Rinsing program sections or the overall cleaning result of the Rinsing program are of minor importance. If more drug-specific substances of the combination product are not are explicitly mentioned, however, if known and influenceable by the subject matter of the invention.

It is also a switching means for switching on the additional function comprises, this preferably in the panel support Dishwasher alongside other means of selection and / or Display means is localized. Another way that To arrange switching means, the metering device of Combination preparation, in which the combination preparation is preferred is filled. In the design of the switching means are various known designs, such as Rotary selector switch, button or the like conceivable. Furthermore, one is Actuation of a switching means by a user-dependent Selection possible by selecting in a menu-driven Selection device, for example in a display or at networked household appliances via a graphical user interface or if necessary, a speech recognition system can be activated.

Is in the dishwasher by at least one provided sensor the use of a combination preparation in particular a "3in1" combination preparation is detectable, so that for the program flow design on the one hand distinguishable is whether a combination preparation according to the dilution principle works, or a combination preparation that contains the rinse aid only in the rinse phase depending on pH and / or temperature dissolves, is used. On the other hand, with repeated Sensor measurement during the entire wash program sequence, e.g. B. Change in concentration and / or pH and / or Changes in the degree of hardness of the rinsing liquid are detected, the conclusions about the concentration of the individual Allow active substances of the "3in1" combination preparation with which Consequence that the program run at any suitable time be modified.

As sensors, at least one of the sensors is chemical and / or acoustic and / or thermal and / or optical and / or pneumatic sensor type. These can be in Number and their specific detection property be designed differently. An evaluation of the Sensor signals both with regard to the adjustment of the Washing program sequence regarding the use of the "3in1" - Combination preparation as well as for the design of the Other parameters of the entire washing program sequence can be used. Alternatively, at least one chemical can be provided Sensor with appropriately selected receptors, which for Detection e.g. B. several simultaneously occurring active ingredients, such as Cleaner and softener and / or rinse aid, the use recognize a combination preparation and also without one Switch on the additional function to the program sequence control Signal use of a combination preparation. By possibly repeated control measurements and / or in comparison with others Sensor measurements during the program run are based on the Use of a combination preparation closed and the Program sequence changed accordingly. Is particularly preferred currently the use of a sensor that at least the pH Value and / or temperature and / or degree of hardness Detection liquid detects.

The intended sensor (s) continuously or discontinuously during the program or individually Rinsing program sections whose timings or times through the program control can be specified by individual Program parameters, e.g. B. based on an actual-target-value comparison and / or a difference value and / or the change history of a Parameters such as pH, temperature, turbidity, foaming, Concentration, water hardness, whether a certain active substance of the Combination preparation z. B. a predetermined minimum or exceeds or falls below the maximum value. Furthermore, e.g. B. in Dependency on a difference value, e.g. B. can depend on the manufacturer from the "3in1" combination preparation itself, as well with regard to other typical parameters like Changes in concentration, dissolution temperatures or Parameter combinations such as pH and concentration or concentration and Result in the temperature of the washing program. For a determinable Period of a wash program sequence or over the entire The duration of the washing program will also change, at least of a parameter of the washing program recorded and evaluated. So z. B. with regard to the course of the pH of the Rinsing liquid conclusions on the concentration of the individual active substances of the "3in1" combination preparation possible. So the evaluation of the pH is currently like this feasible that the program section clean a maximum represents basic pH, either in the program section Rinse must be below a predetermined value, or its change history, e.g. B. in a predetermined Characteristic field, predefined within predefined tolerances or pH jumps (sudden change in pH) can be determined within predefined time periods or on the other hand, time constants for their occurrence are determined be, e.g. B. after reaching the dissolution temperature encapsulated rinse aid. According to the invention, such Sensor measurement with additional function switched on to adapt a Washing program sequence to the use of a Combination preparations for active intervention in the program itself used when choosing a special designed Rinsing program sequence initially have a kind of control function, to determine whether the program actually runs a combination preparation is used or at least one drug-specific substance at the specified time in sufficient There is concentration, adjustments to the The washing program can optionally be carried out.

A suitable method for evaluating the sensor measurement signals is z. B. the value or change of certain parameters of the Rinsing program such as turbidity, pH value, foaming, concentration, Water hardness u. a. individually as well as in suitable combinations at characteristic times of the washing program, in terms of their qualitative and quantitative appearance as well as their delay times among themselves. This can be done within definable time periods or Time intervals determined at least individual parameter values and these an actual-target value comparison, a difference value formation or are subjected to a threshold value query or the changes compared to preset or determined in the program flow Values are made, with all comparison values in Tables or as default values in at least one Storage unit of the program control are stored. With networked This storage unit can also be used outside of the home appliance Dishwasher be localized. Furthermore, in the Certain program states can also be stored in the memory unit, whose combination pairs z. B. are not desired can be deposited and these can guide the user to certain actions prompt. Such undesirable constellations result z. B. Pre-rinse in the program section if an increased Foaming and / or significant pH fluctuations occur, or a predetermined rinse aid concentration during of all program sections is below or else Rinse aid concentration jumps regardless of a specific one Temperature or temperature curve occur. The user can according to the error situation that occurred. B. prompted will insert a combination product into the Make dosing combination or the program flow canceled until user-dependent commissioning of the Dishwasher takes place or that recognized as faulty The measurement result is at least displayed.

Pre-rinsing or cleaning can be provided in the program section be that the time of the actual addition of the "3in1" combination preparation is additionally monitored, e.g. B. by an acoustic sensor the case of a tablet from the Dosing chamber is detected in the rinse tank. Aridere Optical sensors offer detection options. B. increased foaming register or chemical sensors that evaluate the change in pH of the rinsing liquid.

Another advantage is the modification if necessary Combination preparation in which, for. B. an enzymatic detergent substance with an effective temperature limit of approx. 30 ° C and a Rinse aid substance with a dissolving temperature at approx. 58 ° C is included, provided at the same time shortened Program sections, and thus shortened solution time, by brief, if necessary, repeated switching on and / or controlled or regulated power output of the heating medium in the Pre-rinsing and / or intermediate rinsing process sections Flushing liquid preferably at the end of each Process section heated so that for the following Process sections Clean or rinse with hot water Flushing liquid are operated, the respective chemical substance full effectiveness can develop better and longer. By preheating or heating up the Rinse liquid at the end of the previous rinse program section is Dissolve and thus the effectiveness of the cleaner or Improved rinse aid for the duration of each program section. The energy supplied is that of an activation energy comparable. With a planned temperature control or Temperature control can dissolve concentration, Exposure time, time of release of a chemical substance of the "3in1" combination preparation can be optimized.

It is particularly advantageous if this depends on the user actually used "3in1" combination preparation of the Program control is specified as a parameter, e.g. B. by Input via an image capture that z. B. the barcode one "3in1" combination preparation recognizes or in the program memory deposited commercially available "3in1" combination preparations be selected or use a particular Combination preparation by the user in any other way can be entered, the default depending on the user Information about the use of a certain "3in1" - Combination drug either up to a changing Input information can be saved or at the beginning of each or predefined time is queried.

With a further advantage, when querying or evaluating a Information about the type and dosage form of the supplied Cleaning, rinse aid and softening agents if necessary clearly not identified as a "3in1" combination preparation Product incorrectly selected by the user Switch off the "3in1" function or when selecting a "3in1" - Program an error message is output.

It is also advantageous that when "3in1" is switched on Function or when selecting a "3in1" washing program Display for the status of the washing program, that of conventional Rinse programs with individual dosing of the substances switched on are switched off or hidden, so z. B. the Switching off a display LED at the time of Regeneration process or an indicator LED, which is used to fill rinse aid prompts.

Is used by the user of the dishwasher after Put dirty dishes in the dishwasher Wash program selected, a combination preparation of Dishwasher added and activated by an optional Selection means the use of a combination preparation is displayed, the program sequence control looks below Consideration of the additional function that the program sequence of the selected wash program changes and in its entire Design for the use of a combination preparation is adjusted. In doing so, depending on the selected Washing program single or multiple parameters of the different Pre-rinsing, cleaning, intermediate rinsing, Rinse off, automatically in the manner described below essentially depending on the evaluation of predefined Sensor measurements adjusted or changed in a predefined manner. The steps outlined in the process claims do not necessarily imply in terms of their sequence Requirement for the washing program sequence, but can be targeted z. B. depending on the use of a particular Combination preparation or type of combination preparation selected, repeated and / or sequentially or by others, known program steps are followed.

When using a dosage combination with usually separate pantries for the detergent and Rinse aid substance is used when using a "3in1" combination preparation the function of rinse aid and if necessary the detergent dosage in the selected wash program is hidden. In an alternative Design it is possible in the z. B. sensor dependent Determine the concentration of rinse aid in add the necessary quantities, this may be the same Dilution losses from the previous wash program sections. Provided further opening times during the selected washing program for the dosing device to release various Substances are provided, these are blocked or the Time of adding a certain substance postponed and / or changed in the quantity dosage.

Is the combination preparation in addition to the cleaning substance and a softening substance is also added to the rinse aid, the softening in a known manner in the dishwasher with a designated softening device is, as is well known, in one Dishwasher to regenerate the softener saturated salt solutions (brine) are not necessary, therefore in Program sequence the regeneration function, d. H. adding one defined brine volume to the softening device, the otherwise at a defined point in time during the program is provided is hidden. Alternatively, one provided Hardness sensor, which determine the water hardness of the rinsing liquid can that actually exist in the dishwasher Water hardness due to softening with the softening substance of the combination product are monitored if necessary and if necessary the regeneration function of the softener is activated so that a partial softening of the water over the Softening device is made. In hard water areas experience shows that the softening capacity of the Softening substances of a "3in1" combination preparation are not sufficient. It is therefore particularly advantageous if the information about the degree of hardness of the water actually used in the supply line flows into the design of the program flow. The degree of hardness of the water can, for example, by the user through a special provided input function, e.g. B. in the control panel, can be entered and saved or on a Blending device can be set, the appropriate means Value of the water hardness setting to the program sequence control forward and with the "3in1" function switched on or Selection of a "3in1" washing program Regeneration function and / or at least the blending of hard with soft water at least at a given time enable.

It is planned to continue the previous water supply via the Softening device regardless of its softening capacity, which with increasing number of flushing fluid changes in Dependency on the degree of hardness of the water supplied is exhausted, respectively. All other water supply alternatives are Although theoretically possible, it is only useful if by default only combination preparations with one Softener are available. If necessary in the storage container of the Dishwasher defines reserved water volume for the regeneration function can be particularly useful in soft water areas alternatively as a defined volume in whole or in part in the fluid-carrying program sections for dimensioning a predetermined liquid volume can be used.

Used by a sensor during an initial pre-rinse recognized the use of a combination preparation or the Use of the same by activated additional function displayed, the duration of the initially scheduled Program section pre-rinse to prevent that the included detergent and rinse aid ingredients too early loosen and in the sections cleaning or rinse aid low concentration. On the other hand, is a Wash program selected that includes two or more pre-wash sections provides for a complete water change, so through Omit at least one pre-rinse or the reduction on pre-rinse a program section even without the Detection of a combination preparation is already prophylactic prevents a person from mistakenly entering the Dishwasher instead of in the dosing combination Combination preparations dissolve too early.

If the pre-rinsing process section is described as above shortened or completely omitted, this reduces the time of loading the dishes with water, the Dissolving process of heavy soiling that may already be stick to the dishes for a long time, this will shorten or completely canceled. This is a good thing in some pollution cases Cleaning result not beneficial. That is why in such Cases of the process section preferably clean around the Duration of the procedural section extended by the Process section pre-rinsing was shortened. So the dissolving of the Dirt particles at least partially in the process section Cleaning postponed.

The number of intermediate rinsing sections is particularly preferred between the cleaning and rinse aid program sections an intermediate rinse section that substantially reduces the Task has to get stuck dirt particles and to eliminate chemical residues from cleaning. With more Intermediate rinsing can be advantageous at a reduced maximum Flushing liquid volume compared to the maximum intended Rinse liquid volume of the program section Clean operated so that the concentration of the dissolved Rinse aid is higher than with the same volume of rinsing liquid like cleaning. Will clean during the program section the rinsing liquid is diluted several times and / or by a corresponding turbidity measurement a low degree of pollution the rinsing liquid has been recognized, so can on the Intermediate rinsing section may be completely dispensed with.

In the intermediate rinsing process section, the with lukewarm Flushing liquid is operated and therefore no active Provides heating by switching on the provided heating elements those during the process sections, those with hotter Flushing liquid operated, withdrawn energy withdrawn. To the Process flow energetically favorable and as described above also saves water and thus the concentration of the rinse aid to design intermediate rinsing in the process section, can be provided by repeated switching on and off the circulation pump with differently determinable and / or Predefinable duration of the on and off state of the circulation pump the rinsing liquid in the manner of a pulse rinse on the Introduce wash ware. This is when the circulation pump is switched off Circulation of the rinsing liquid and thus the loading of the Washed goods interrupted with washing liquid. This kind of Pulse purging is short with a sequence of splashing, pause, Splashing, pause, splashing, pause, etc. described.

At the end of at least one section of the process such. B. the Intermediate rinsing can depend on the measurement of the turbidity and / or the rinse aid content in the rinsing liquid Dilution step may be provided. The dilution step causes a partial volume of the rinsing liquid, which during intermediate rinsing was used in the subsequent Process rinse section continues to be used and with fresh rinsing liquid that is supplied is mixed. As a result of the dilution step, the loss will increase in particular Rinse aid against complete pumping and filling reduced by rinsing liquid. For this reason, too regardless of the measurement of the turbidity of the rinsing liquid inevitably a dilution step instead of one complete pumping of the rinsing liquid z. B. at the end of a Rinsing program section may be provided.

As a further or alternative step, the Temperature in the pre-rinse program section Process sections, preferably in the process section Clean to a temperature below the dissolution temperature of rinse aid, preferably below 58 ° C, reduced. So that at z. B. a selected intensive program, which is usually the cleaning section with temperatures operates between 58 and 70 ° C, prevents that when in use a combination preparation with temperature-dependent approval the rinse aid substance may already dissolve here and consequently in the program section rinse aid in too low Concentration is present.

In the rinse aid program section, the wash ware is placed on a Temperature of at least 58 ° C for the subsequent Drying section heated up, this also does that temperature-dependent and possibly pH-dependent dissolution of the Rinse aid allows.

The temperature control of the rinsing liquid is advantageous during a selected flushing process that is based on use of combination preparations automatically, as mentioned above, was adjusted, on the one hand by the dissolution temperatures of the individual chemical substances determined. On the other hand from an energetic point of view during pre-rinsing, if it is carried out, do not flush the rinsing liquid Switching on provided heating means heated up so that the Rinsing liquid essentially from the water inlet temperature is dependent. During cleaning and rinsing, the Flushing liquid as a result of switching on the provided heating medium actively heated and in the intermediate rinse program section without Switching on these heating means passively, d. H. by removing Energy from the heat capacity of the dishwasher, clearly to a temperature below the dissolution temperature of a temperature-dependent rinse aid heated.

Without limiting the invention, it is possible to use components of the washing program with the "3in1" function selected completely or partly run according to a predefined program to let or recognize and evaluate certain Parameters, e.g. B. by sensors, in a suitable manner to the actual Situation in relation to a given target situation entirely or partially adapt.

The activation of the "3in1" function or the selection of one "3in1" washing program can also be used in networked Household appliances, regardless of the location of one not in the dishwasher localized central computers are operated, be switched on if necessary.

In addition to the already known selectable washing programs Normal program, intensive program, eco program, short program, can a special "3in1" washing program can also be provided the use of combination preparations, in particular those that are detergent, softener and rinse aid at the same time included, is adjusted from the outset. This "3in1" - Washing program is carried out by the user of the dishwasher directly selected and is by the below marked essential process steps, the however not an inevitable sequence of procedural steps provides a possible wash program sequence without the final program section drying:

Change or switch off the softening function of the Regeneration device and / or changing or switching off the opening special storage chambers of the dosing device for in particular, in addition to the combination preparation, still individually stored chemical substances (detergent, rinse aid) and / or Changing the metering amount of the stored chemical Substances.

Switching off corresponding display elements for functions, which during the program run at least by the Program sequence control from the outset, that is, preset be switched off, preferably switching off the display Regeneration with the regeneration function switched off by the Regenerating device and / or switching off the rinse aid display refill with automatic at least switched off Rinse aid dosage.

The pre-rinsing is done with cold water, that is in the Is essentially dependent on the water supply temperature for one extremely short duration of 2 to 5 minutes, preferably 2 to 3 minutes. During this time mainly fresh dirt can be found detached and soiled dirt can be softened. Depending on an optional turbidity measurement of the Liquid can be heavily contaminated by one or more Dilution steps of the rinsing liquid may be provided, with a Dilution step due to the shortness of pre-rinsing, preferably at the end of pre-rinsing. Find at the end of pre-rinsing does not take place, the Flush liquid completely before the next program section changed.

The freshly added rinsing liquid, which also dilutes and may be contaminated to a certain extent now in the process section cleaning to a temperature that below the dissolving temperature of the rinse aid, preferably between 40 and 57 ° C, is heated.

The combination preparation is through the dosing device preferably within the first third of the program section Clean the rinse tank, if that Combination preparation not made by the user before starting the rinse programs in the rinse tank, e.g. B. in the cutlery basket, was inserted.

At the above Temperature is the rinsing liquid in the Rinsing container circulated for about 10 to 30 minutes during cleaning and Clean completely at the end of the process section pumped out or diluted. This decision can be made by an optional carried out turbidity measurement of the rinsing liquid be made.

Will be at least a turbidity measurement of the rinsing liquid several dilution steps are carried out in Dependence on the degree of pollution and / or the concentration individual components of the combination product optional executable. The cleaning procedure follows Process stage intermediate rinsing, in which the now existing Passive fresh or diluted rinsing liquid, d. H. exclusively by taking energy from the heat capacities of the Dishwasher is heated, so that this during their Circulating remaining dirt and chemical residues Residues of the cleaning process section removed. The Circulation of the rinsing liquid takes place in the process section Intermediate rinsing takes about 2 to 10 minutes. Alternatively, the intermediate rinsing can also be used as pulse rinsing reduced maximum flushing fluid volume with respect to the maximum Flushing liquid volume of cleaning can be operated.

The intermediate rinsing process section is carried out with a complete or partial emptying ended.

In the rinse process section, the rinsing container is turned on defined flushing liquid volume supplied. This can be from be firm and / or variable in Dependency of various parameters can be set. A dependent size is the concentration of the actually in the rinse aid of the existing rinse aid, as this direct influence on the rinse aid result and thus on the then achievable drying result of the wash ware takes. This is how the rinse aid is concentrated at the beginning of the program section rinse aid Flushing liquid as low as possible, however depending on the Degree of turbidity of the rinsing liquid are supplied. is otherwise the concentration of rinse aid at the beginning of the Rinse program section above average or sufficiently high, the concentration of the rinse aid can Delivery of a defined adjustable rinsing liquid volume can be set to a predetermined concentration. The Rinse liquid with rinse aid already dissolved, as well that with rinse aid still to be dissolved is now preferred to a dissolving temperature above the dissolving temperature a pH and / or temperature-dependent dissolving Rinse aid heated. This dissolution temperature is currently above 58 ° C (for the "3in1" combination preparation calgonite Powerballs®). For a period of 2 to 15 minutes, however also at least until a predetermined one is reached Temperature of currently preferably 65 to 70 ° C, the Rinsing liquid heated and circulated. At the end of As far as possible, the rinsing liquid will be rinsed as far as possible removed from the rinsing tank by pumping.

On the wash ware, the wash container ceiling, the wash container walls remaining liquid and water vapor will be in the, on the Program section rinse following, program section Drying removed. The drying is preferably as Condensation drying carried out. During the If available, condensation drying is preferably carried out in the first Third of this program section at least one recirculation fan switched on.

The intermediate rinsing during the liquid-carrying Process sections can preferably be designed as pulse rinsing be d. H. that during the process section Intermediate rinsing the circulating pump repeatedly for a given or determinable duration is switched on and off. Here is the duration switching on the circulation pump and switching off the Circulation pump depending on a flushing liquid level in the Rinsing tank, which corresponds to a lower fill level, the circulation pump does not suck in air. Because of the There are other limited factors mentioned above Dependencies on the speed of the circulation pump, which increases with Revs more rinsing liquid from the sump. The Design of the impulses of switching the circulation pump on and off also depending on a turbidity measurement of the rinsing liquid the duration can be adjusted if the degree of contamination is low switching on the circulation pump compared to the duration of the Switching off the circulation pump can be shortened and increased Degree of pollution can be extended accordingly. Dependent on a pH measurement and / or the temperature of the liquid and / or a determined rinse aid concentration can do that maximum available rinsing liquid volume during one liquid-carrying process section, preferably in Process section intermediate rinsing, defined. So can be based on the dissolution behavior and / or the concentration of the Rinse aid and / or any of the other substance of the Combination drug can be influenced. Becomes a Combination preparation used, which contains a rinse aid, the a temperature and / or pH-dependent dissolution behavior has a certain pH, preferably in neutral pH Area to reach during the intermediate rinse. This sets if necessary, both an increased flushing fluid volume during the Intermediate rinsing ahead, as well as passing this pH through one or more intended dilution steps during the Interim rinsing can be achieved.

In one embodiment, the invention is based on a Method for operating a household dishwasher, which is for the use of 3in1 combination preparations, So of those with the active ingredients detergent, rinse aid and Softener, is suitable, explained in more detail.

The only figure shows a diagram of each Process sections of a washing program sequence. It will be there provided that the water of the supply line is essentially soft is and thus has a low degree of hardness.

The time and is not to scale on the ordinate of curve A. on the abscissa, this is not to scale in the rinse tank existing rinsing liquid volume applied. Individual important Parameters for the process sequence, which for a particularly good The cleaning result of the wash ware is indispensable corresponding arrows marked. Preferably at the beginning of the Rinsing programs are automatic metering functions that do not include "3in1" combination preparation, hidden, this affects the automatic metering of the Rinse aid, also the automatic regeneration function hidden. From the figure it can be seen that the Rinse program with a pre-rinse of very short duration from 2 to 5 Minutes at the water supply temperature.

In this program section are preferably the Dishwasher no chemical substances to improve the Prewash result added. However, it cannot be prevent by the. User incorrectly the 3in1 Combination preparation% hon before starting the dishwasher was fed. After completely pumping out the Rinse liquid at the end of the program section Pre-rinse, marked by arrow VV, fresh rinsing liquid becomes the rinsing container fed. This is to a maximum provided Rinsing liquid volume of approx. 4 l, measured on one Dishwasher, which is designed to hold 12 standard place settings, limited. At the beginning of the cleaning program section, the Flushing liquid by switching on the provided heating medium heated. The rinsing liquid should have a temperature of approx. 55 ° C, which is a at the time of the invention Temperature below the dissolving temperature of the rinse aid of pH and temperature-dependent 3in1 combination preparation, such as Calgonit Powerballs®. In the first Third of the cleaning program section will be the "3in1" - Combination preparation, preferably while feeding Rinsing liquid, added (marked with arrow 3in1).

The rinsing liquid is given at the maximum Temperature circulated in the rinsing container for approx. 10 to 30 minutes and this acts on the items to be cleaned. At the end of Program section cleaning is the rinsing liquid from the Rinsing tank removed almost completely (marked by Arrow VR). The flushing fluid volume is for a following Program section intermediate rinsing freshly filled and exclusively by extracting energy from the Heat capacity of the dishwasher is stored, heated and circulated. The maximum flushing liquid volume supplied can be in Dependence of a turbidity measurement and / or one Concentration measurement of existing rinse aid after the Dilution principle works, can be varied. So how is dotted shown, the flushing fluid volume at high Degree of soiling and / or high concentration of rinse aid and / or strongly basic environment of the rinsing liquid is preferred elevated. With a low degree of pollution, quite a bit lower Concentration of rinse aid in relation to the concentration that rinsing is necessary and / or already neutral Flushing liquid becomes the flushing liquid volume as dashed shown, humiliated.

The intermediate rinsing section follows one Dilution step or after a complete, not shown Pumping out z. B. Dependence on degree of turbidity in the Rinse aid program section above. This is at least partially the case Rinse liquid volume increases and preferably achieves that maximum available rinsing liquid volume of the Cleaning the program section. On the other hand, this can alternatively Flushing fluid volume through appropriately evaluated measurement results provided sensors also precisely to a specifiable Concentration range of the rinse aid can be set. The value of the rinsing liquid volume to be supplied must then pass through the Computing unit of the program sequence control can be calculated. The duration of the intermediate rinsing thus varies between 2 to 10 minutes and the duration of the final rinse is between 2 to 15 min. The rinsing liquid volume is in the further program flow now to a temperature above a pH or temperature-dependent rinse aid dissolution temperature increased, the rinse aid dissolving temperature is currently approx. 58 ° C, so that a minimum rinse temperature of 60 is heated up to 70 ° C. At the end of the program section Rinse aid will flush the rinsing liquid almost completely Rinsing container removed (marked by arrow VK). To the Rinse aid program section is included Program section drying, but this is not shown here is.

Without restricting the invention, all statements are Include numerical values to which 3in1- Combination products (Calgonit Powerball®, Somat 3in1®, Sun 3in1 Optimal®) adapted. With corresponding changes of the The composition of these 3in1 combination products are mentioned parameters with numerical values accordingly adapt. To further modify the proposed Program flows are based on parallel applications P-10073, title "Method of operating a dishwasher" and P-10026, title "Method of Operating a Dishwasher, Dishwasher "from May 16, 2002 by the applicant directed.

Claims (16)

1. Dishwasher in which at least one wash program can be selected, characterized in that this wash program is itself defined for the use of a combination preparation with several active substances or at least one means is provided for switching on an additional function, by means of which at least one parameter is activated when this function is switched on of the selected washing program can be changed with regard to the use of a combination preparation with several active substances. 2. Dishwasher according to claim 1, wherein the Additional function for a "3in1" combination preparation with at least a cleaning substance, a softening substance and one Rinse aid is designed, which is in the form of a pressed tablet, pearl or as powder or liquid Is used. 3. Dishwasher according to claim 1 or 2, characterized characterized in that a switching means for switching on the Additional function on the panel holder of the dishwasher or arranged in or on a metering device or on is arranged elsewhere. 4. Dishwasher according to one of claims 1 to 3, characterized in that at least one sensor is provided whose measured values can be recorded and evaluated in a targeted manner are so that from the program control unit Dishwasher the sequence of the selected washing program can be influenced in a defined manner and / or if necessary the Program control unit targeted further sensor measurements and / or input-dependent queries before at least one defined intervention in the wash program sequence he follows. 5. Dishwasher according to claim 4, characterized characterized in that at least one chemical and / or at least one acoustic and / or at least one optical sensor and / or at least one thermal and / or at least one pneumatic sensor is arranged in the dishwasher. 6. Dishwasher according to one of claims 4 or 5, characterized in that continuously or discontinuously based on at least one actual-target value comparison and / or difference value and / or the change at least a rinse program parameter pH value and / or temperature and / or turbidity and / or foaming and / or Concentration is recognizable in which qualitative and / or quantitative measure the release of at least one specific Substance of the combination product is done. 7. Dishwasher according to one of claims 4 to 6, characterized in that points in time and / or time intervals for specific sensor measurements and / or setpoints and / or Threshold values and / or other comparative values for Evaluation of these sensor measurements in at least one Storage unit of the program control are stored. 8. Dishwasher according to one of claims 4 to 7, characterized in that by at least one provided sensor, preferably at the beginning of Wash program sequence or during the first liquid-carrying Rinsing program section, it is detectable whether a Combination preparation in the dosing device or elsewhere in the dishwasher, preferably in a cutlery basket, is introduced and / or that at least once in the Sequence of the washing program by at least one measurement of one Sensor can be recognized whether one in the combination preparation existing rinse aid substance to an earlier one or defined point in time during the course of the program Rinsing liquid has been added or preferably is only released in the rinse aid program section and / or whether a defined rinse aid concentration or is below. 9. Dishwasher according to one of claims 1 to 8, characterized in that a detection device, in particular an image recognition device is provided, through the information about using a certain combination product can be determined. 10. Dishwasher according to claim 1 to 9, characterized characterized that display elements are provided on the dishwasher are the use of a combination preparation and / or certain process states or the entire process one specifically for the use of a Display combination preparations adapted or selectable washing program. 11. Method for operating a dishwasher, in which at least one washing program can be selected, which, by optionally switching an additional function on or off, for the use of a combination preparation and / or for an automatic, essentially sensory detection of the use of a combination preparation in its design and its The process is adapted to the use of a combination preparation with several active ingredients, characterized in that at least one of the following process steps is carried out in the course of the washing program: a) the metering of certain substances which are stored in the metering device is shifted in time and / or the amount of metering is changed or completely hidden; b) the automatic regeneration function of the regeneration device is switched off, unless a specified hardness sensor exceeds or falls below a defined hardness level and / or a defined hardness level of the rinsing liquid is determined by a user-dependent setting on the regeneration dosage and / or the fade-in is shown via a program-controlled input device the regeneration function takes place when the additional function is switched on, the overall degree of hardness of the washing liquid being reduced by at least temporarily switching on the regeneration function and / or blending the washing liquid with soft water if a defined degree of hardness of the washing liquid is exceeded; c) at the start of the rinsing program, the rinse aid substance from the dosage combination is blocked,. For this purpose, a corresponding default value is set and stored in a memory unit of the program control, this being reset when the rinse aid concentration falls below a definable concentration value, this default value can be reset and / or at a definable point in time during the program run, rinse aid substance in a definable volume of the rinsing liquid and / or is added until a definable minimum concentration value is reached, such an addition preferably only taking place in the rinse aid program section; d) during the course of the program, depending on the procedure of the actually executed program section b) with regard to the regeneration function, clogging of a defined brine volume into a softening device is faded in or out; e) information about the actual and / or target state of at least one parameter of the washing program or a hint derived therefrom and / or request to the user is displayed by corresponding display elements; f) the duration of at least one program section, preferably pre-rinsing, is reduced or reduced to zero; g) the duration of two process sections, preferably the program sections pre-rinsing and cleaning and / or cleaning and intermediate rinsing, are lengthened and / or shortened, the length of the lengthening and shortening being in a definable ratio; h) one or more provided intermediate rinsing sections are reduced to one or no intermediate rinsing sections; i) at least in one program section, the rinsing liquid is applied to the items to be washed in the manner of a pulse rinsing by one-time or repeated switching on and off of the circulation pump with differently definable or predefinable duration of the switching-on and switching-off state of the circulation pump or by regulated or controlled speed change of the circulation pump ; j) during at least one program section, preferably at the end of the process sections pre-rinsing, cleaning and / or intermediate rinsing, at least one dilution step with a reduction in the dirt concentration of the rinsing liquid is dependent on at least one measurement of the turbidity and / or the concentration of at least one active substance in the rinsing liquid or executed independently; k) the maximum temperature in the program sections preceding rinse-aid, in particular in the cleaning process section, is reduced to a temperature below the dissolution temperature of the rinse-aid substance; l) in the rinse aid program section, the temperature is raised to a temperature which is above the temperature of the solution of the rinse aid substance. 12. Method for operating a dishwasher according to Claim 11, characterized in that at least in the Process sections cleaning and rinsing as a result Switching on the provided heating medium active the rinsing liquid is heated and if necessary in the program section intermediate rinsing the rinsing liquid preferably passively without switching on this heating medium is heated and / or during the Pre-rinsing the rinsing liquid is essentially not active is heated. 13. Method for operating a dishwasher Claim 11, characterized in that during the Interim rinsing and / or pre-rinsing for a short time provided heating means are switched on and off, this repeated at different or equally long intervals below or near the solubility temperature of the Cleaning substance and / or the softening substance and / or the Rinse aid substance. 14. A method of operating a dishwasher, which as a washing program for operating a dishwasher for the use of combination preparations with several Active substances, preferably "3in1" combination preparations, under several washing programs with defined Program sequence can be selected, characterized in that at least one method step of claims 11 to 13 is carried out or more of these process steps follow one another or at a distance, or at least occasionally be repeated. 15. The method according to any one of claims 11 to 14, characterized in that at least one of the following method steps are fixed in the course of a wash program adapted or selectable for use with a combination preparation:
Changing or switching off the softening function of the regeneration device and / or changing or switching off the opening of special storage chambers of the metering device;
Switching off corresponding display elements for functions which are switched off during the program run, at least by the program flow control from the outset, that is to say preset;
Pre-rinsing with cold, water supply temperature-dependent rinsing liquid with a pre-rinsing time of preferably 2 to 5 minutes; complete rinsing liquid change at the end of the process section pre-rinsing, wherein one or more dilution steps can be carried out with a liquid change during the pre-rinsing;
Heating the rinsing liquid in the cleaning process section to a temperature which is below the dissolving temperature of the rinse aid, preferably between 45 and 57 ° C .;
Dosing of the combination preparation during the heating phase of the rinsing liquid in the cleaning program section, preferably at the beginning or in the first third of the cleaning program section;
Circulation of the rinsing liquid in the rinsing tank in the cleaning program section at a cleaning temperature (40 to 57 ° C) for a period of 10 to 30 minutes, with the rinsing liquid being completely pumped out at the end of the cleaning process section, depending on the result of a turbidity measurement of the rinsing liquid or the cleaning method section is completed by a dilution step, wherein several dilution steps can optionally be carried out during the cleaning;
passive heating of the rinsing liquid in a process section, intermediate rinsing, which is freshly added or blended with rinsing liquid of the cleaning program section, and circulation of the rinsing liquid in the rinsing container for a period of 2 to 10 minutes;
Termination of the intermediate rinsing process section with complete or partial emptying, the latter initiating a dilution step to the following process section;
Filling the rinsing liquid to a defined and / or variably adjustable filling level of the rinsing liquid in the rinsing liquid program section, heating up the rinsing liquid by switching on the provided heating medium above the dissolving temperature of the rinse aid substance of the combination preparation, preferably to 58 to 70 ° C. and circulating the rinsing liquid with the dissolved or diluted and delayed rinse aid;
Completely empty the rinsing liquid from the rinsing container at the end of the rinse process section, first. if a defined concentration of the rinse aid substance has not fallen below for a defined period of time, at least in the rinse aid program section. 16. Method for operating a dishwasher according to Claim 15, characterized in that the circulation pump preferably in the intermediate rinsing process section repeated on and off for a definable or determinable duration is turned off, the duration of turning on the Circulation pump and switching off the circulation pump dependent from a rinsing liquid level in the rinsing container and / or the speed of the circulation pump of a turbidity measurement Flushing liquid is the maximum available Flushing liquid volume depending on the temperature of the Flushing liquid and / or the determined Rinse aid concentration and / or the pH value and / or the Sieve contamination is set.