DE102009027950A1 - Water-conducting household appliance - Google Patents

Abstract

The invention relates to a water-bearing household appliance, in particular a dishwasher, with a control device (27) for carrying out at least the control device (27) as a function of at least one cleaning agent (RM1, RM2, RM3) that can be adapted to the washing program (SP1, SP2, SP3). According to the invention, an analysis unit (29) for detecting the cleaning agent (RM1, RM2, RM3) is provided, by means of which a substance composition of the cleaning agent can be at least partially identified, the analysis unit (29) with the control device (27) for transferring from the analysis unit ( 29) determined analysis data is connected from the analysis unit (29) to the control device (27).

Description

The The invention relates to a water-conducting household appliance, in particular Dishwasher, with a control device for carrying out at least one washing program, wherein with the control device in dependence on at least one used Detergent the wash program customizable is.

dishwashers are known On the inside of the door accessory devices for powdered cleaner and usually liquid rinse aid on. additionally is at the bottom of the sink an adding device for a softener provided. Alternative to these individual components are also combination products in tablet form, in which the active ingredient components, such as Cleaner, rinse aid and softener, are included as ingredients.

In order to even when using the above-mentioned combination products satisfactory rinse result can be achieved, an increased Energy requirement during the rinse cycle to be required. Such is a generic dishwasher with a control device for carrying out a washing program known, depending on whether combination products are used or not, the rinse program adapts. The adaptation of the washing program can be activated by a user-manual activation of a corresponding Key, for example a "3in1 key". alternative can automatically detect the machine control of the dishwasher, that a multifunction product is used. This is the Absence or presence of rinse aid used for the decision, whether a conventional one washing program or a so-called 3-in-1 rinse program perform is.

The Combination products offered in tablet form may vary depending on the manufacturer in their composition and thus in their Distinguish strong performance spectrum. Against this background is the known from the prior art coarse detection, with the only the absence or presence of rinse aid is detectable, for a precisely tuned Adaptation of the washing program not suitable for the particular combination product used.

The The object of the invention is a household appliance, in particular Dishwasher, a method of implementation a washing program in such a household appliance, a cleaning agent for the household appliance and a composite consisting of the household appliance and the detergent to provide an improved adaptation of the wash program allows for the particular cleaning agent used.

The The object is achieved by the features of claim 1, of the claim 9 and of claim 10 and claim 12 solved.

The solution comes from a water-bearing Home appliance, in particular dishwasher, with a control device for carrying out at least one washing program, wherein with the control device in dependence on at least one used detergent the wash program is customizable.

According to the characterizing one Part of claim 1 is an analysis unit for detection provided by the detergent, by means of a composition of matter of the cleaning agent is at least partially identifiable, wherein the analysis unit with the control device for transmission analysis data determined by the analysis unit from the analysis unit connected to the control unit. On that basis can then the controller - exactly tailored to the particular cleaning agent used - the respective set wash program For example, with reference to the process parameters, such as process temperatures or the duration, adjust.

According to the invention Therefore, not just a determination of whether a combination product is used will or not, but in addition at least in part a determination of the composition of matter of the applied combination product.

On this way you can with an adjustment of the to be performed washing program more detailed information related to the specific functionality of the used Cleaning agent are based. For a simple and reliable Identification can use the detergent as an additive Marking component, with a unique identification of the detergent through the analysis unit of the household appliance on is simplified. The marking component of the cleaning agent may prefer further information about the manufacturer, about the Quantity or batch, on the basis of which a further adjustment the temperature control, the amount of water used, etc. during the wash program can be done.

Preferably, home appliance manufacturers and detergent manufacturers can agree on a standard in which certain detergent components, such as the special marking components, are recognized by the analysis unit of the household appliance and depending on the recognized component of the household appliance operation is adjusted. For this purpose, the household appliance and the at least one cleaning agent can be combined in a system or composite in which the detection capacity of the analysis unit of the household appliance and the cleaning agent are at least coarsely coordinated. In the composite can be agreed in a number of different cleaning agents on the use of predetermined marking components that are identifiable by the household appliance.

alternative this can be dispensed with such marking components and the analysis unit directly in particular such active ingredient components of the cleaning agent, which are important for the rinsing result. A vote regarding the use of marking components needs in this case not to be done.

As already mentioned above, can the marking component as an additive in the detergent product be installed and otherwise have no further cleaning function. Alternatively, the marking component of the cleaning agent in double function at the same time also an active ingredient component for cleaning be the dishes.

The Invention is particularly applicable to combination products, having different active ingredient components, such as cleaner components, Enthärterkomponenten and / or rinse aid components. Their power spectra can become differ greatly in different manufacturers, creating a exact coordination of the washing program only by the invention proposed Detection of the composition of the detergent achieved can be.

to Recording the for the rinse used detergent, the analysis unit, a sensor exhibit. This can be directly in the detergent-adding device or in the fluid circuit of the household appliance be integrated so that the dissolved in the rinsing liquid active and / or marking components can be detected. The components thus detected can each with stored in the analysis unit model components be compared. With agreement with one of the model components, the analysis unit can provide a control signal to the control device, on the basis of which the washing program to be performed can be adjusted.

In a preferred embodiment it is provided that the analysis unit for the analysis of a liquid, especially water-based cleaning agents is trained. However, it may also be provided, an undissolved cleaning agent to identify.

there can in a preferred embodiment be provided that the analysis unit to carry out a Absorption and / or reflection measurement is formed. So can as Labeling substances are used with a substance Such measurement can be detected, wherein in the measurement Cross sensitivities with other substances of the cleaning agents and / or Soiling on the dishes can be excluded. The same applies to the measurement influencing interactions of the substances with each other

For example. can in a preferred embodiment be provided that the absorption and / or reflection measurements with electromagnetic radiation in the wavelength range of infrared radiation, Ultraviolet radiation and / or visible light can be performed. This z. B. measurements with infrared and / or ultraviolet radiation less strong from the optical turbidity influencing ingredients. To the measuring accuracy it may be intended to increase several measurements in different ways Wavelength ranges perform. alternative and / or additionally can be provided further measurements, such. B. the measurement of conductivity, the dielectric, the magnetic properties, can be provided by additionally their frequency dependence to be evaluated in the context of spectroscopic investigations.

In a preferred embodiment it is provided that the analysis unit has at least one turbidity sensor includes. With the turbidity sensor, the z. B. is arranged in the hydraulic system of a dishwasher, in during that the operation u. a. rinsing, d. H. with cleaning agents and / or soiling of the dishes added water circulated can, without a further sensor, a detergent identification carried out become. For this purpose, the turbidity sensor to carry out a plurality of measurements formed, for. B. in different Wavelength ranges.

alternative For this purpose, the analysis unit can have a reading unit which has a in the manner of a barcode on the detergent or on its Packaging applied marking component detected. Possibly the reading unit can be provided on a control panel of the household appliance be. In this case, the particular still packaged detergent passed the reading unit and be identified.

The identification of the cleaning agent can preferably take place fully automatically. One uses zerseitige activation, such as by pressing an additional button or the like, is thus not required. The identification of the substance composition of the cleaning agent as well as the adaptation of the washing program for carrying out the rinse cycle can therefore preferably take place unnoticed by the user.

In an embodiment the detergent can be configured by the manufacturer such that a particularly simple identification of the active ingredient components that are important for the rinsing result allows is. In particular, the manufacturer may have a corresponding marking component be incorporated into the detergent.

As already mentioned above, may preferably be the household appliance together with the at least one cleaning agent in a system be provided in which the household appliance together with the detergent are designed so that the analysis unit of the household appliance reliably identify the substance composition of the cleaning agent can. Preference is given to a number of optionally applicable cleaning agents each marking components installed on the basis of which Analysis unit of the household appliance detailed information about the Manufacturer and / or over other performance characteristics of the detergent used can be obtained.

following is an embodiment the invention with reference to the attached Figures described.

It demonstrate:

1 in a block diagram, a dishwasher;

2 in a detailed view, the control device of the dishwasher with associated analysis unit; and

3 a temperature-time diagram in which temperature profiles of different rinse program variants are entered.

In the 1 is schematically a dishwasher with a washing compartment limiting washing compartment 1 shown. In the washing compartment of the washing container 1 can not shown, to be cleaned dishes in dish racks 3 . 5 to be ordered. In the washing container shown 1 are exemplary two provided in different spray levels spray arms 7 . 8th arranged, via which the wash ware to be cleaned is applied with rinsing liquid.

In the Spülbehälterboden is a pump pot 11 with assigned circulating pump 13 provided by the supply lines fourteen . 15 fluidically with the spray arms 7 . 8th connected is. The in a recirculation line 9 arranged circulation pump 13 is a heating element 12 downstream. Further, the sump is 11 via a connecting piece with a fresh water supply line coupled to the water supply network 16 connected, in which a water inlet valve 19 is provided. The sump 11 is also via another connection with a drain line 17 in connection, in which a drain pump 18 for pumping out rinsing liquid from the rinsing container 1 is arranged.

The circulation line 9 forms together with the supply lines fourteen . 15 and the washing compartment a closed hydraulic circuit in which circulates the washing liquid and the spray arms 7 . 8th is acted upon by the dishes. Downstream of the in the circulation line 9 arranged heating element 12 is a water switch 25 arranged here by way of example as an electromagnetically actuated three-way switching valve is shown. The three-way switching valve 25 connects in a first switching position shown, the circulation line 9 with the supply line 15 and in a second switching position, not shown, with the supply line fourteen , With appropriate switching operation is thus a change operation of the two spray arms 7 . 8th allows.

The heating element 12 , the circulation pump 13 , the drain pump 18 as well as the water intake 19 and the water switch 25 are in signal communication with an electronic control device 27 , which controls these device components for the execution of wash programs SP1, SP2, SP3, as described in the 3 shown temperature-time profiles are exemplified. The washing programs SP1, SP2, SP3 shown therein are subdivided in a manner known per se into the partial program steps of pre-wash V, cleaning R, intermediate rinsing Z, rinsing K and drying T.

Like from the 1 shows is the controller 27 an analysis unit 29 signal technically assigned to a sensor 26 as well as an evaluation device 28 having. The sensor 26 is metrologically in contact with the in the recirculation line 9 flowing rinsing fluid as well as circuitry with the evaluation 28 connected. As will be described later, the sensor 26 Capture marking components M1, M2 or M3, which are incorporated as additives in cleaning agents RM1, RM2 or RM3. For this purpose, the sensor 26 by way of example, have an infrared transmitter and an infrared receiver.

In the 2 is the controller 27 together with the analysis unit 29 presented in detail to the operation of the analysis unit 29 to clarify. Like from the 2 shows, is the sensor 26 partly in contact with the in the circulation line 9 flowing rinsing liquid.

The rinsing liquid circulated in the liquid circuit is admixed with a cleaning agent RM2 which has as active components a softener WK1, a rinse aid WK2 and a cleaner WK3. As an additive, the cleaning agent RM2 contains a marking component M2, which is provided by the analysis unit 29 is identifiable and contains information about the manufacturer, the quantity and the specific functionality of the RM2 detergent.

The cleaning agent RM2 is together with others in the 2 shown cleaning agents RM1 and RM3 and the dishwasher to form a composite or a system in which the analysis unit 29 the dishwasher and the marking components used in the cleaning means RM1 to RM3 M1 to M3 are coordinated. When using one of the three cleaning agents RM1 to RM3, therefore, the analysis unit 29 identify each of the markers M1 to M3 incorporated in the cleaners.

The Detergents RM1, RM2, RM3 are exemplary combination products in tablet form from different manufacturers. The cleaning agents can in terms of content or cleaning performance of the used Active substance components WK1, WK2, WK3 differ.

After identification of the dissolved in the rinsing liquid marking component M2, the sensor passes 26 a corresponding measurement signal MS2 to the evaluation 28 the analysis unit 29 , This then generates a control signal S2, which is sent to the control device 27 is forwarded.

In an analogous manner, when using the cleaning agent RM1 or RM3, a measuring signal MS1 or MS3 corresponding to the evaluation device 28 which then sends a control signal S1 or S3 to the control device 27 transmitted.

Depending on which of the control signals S1 to S3, the control device 27 from the analysis unit 29 receives, the control device 27 Perform the rinse with the specially adapted wash program variants SP1, SP2, SP3. The wash program variants SP1, SP2, SP3 differ according to the 3 only in that the rinsing liquid by means of the heating element 12 is heated during the rinse step K to different sized rinse temperatures T _K. Upon identification of the marking component M2, the washing program variant SP2 is thus executed. When identifying the marker component M1 or M3, on the other hand, the wash program variant SP1 or SP3 is executed.

LIST OF REFERENCE NUMBERS

1

rinse tank

3, 5

dish rack

7, 8th

spray arm

9

circulation line

11

sump

12

heating element

13

circulating pump

14 15

supply

16

Fresh water supply

17

drain line

18

Drain pump

19

Water inlet valve

25

Water distributor, Three-way switching valve

26

sensor

27

control device

28

evaluation

29

analysis unit

t

Time

ΔtH

heating phase

T

temperature

TK

Rinse temperature

TR

Reinigungstemperar

V

prewash

R

Clean

Z

intermediate rinse

K

Rinse

T

dry

WW1, WK2, WK3

active component

M1, M2, M3

labeling component

RM1, RM2, RM3

cleaning supplies

MS1, MS2, MS3

measuring signal

S1, S2, S3

control signal

SP1 SP2, SP3

rinsing program

Claims (17)

Water-conducting household appliance, in particular dishwasher, with a control device ( 27 ) for carrying out at least one washing program (SP1, SP2, SP3), wherein with the control device ( 27 ) as a function of at least one used cleaning agent (RM1, RM2, RM3), the washing program (SP1, SP2, SP3) is adaptable, characterized in that an analysis unit ( 29 ) is provided for detecting the cleaning agent (RM1, RM2, RM3), by means of which a substance composition of the cleaning agent is at least partially identifiable, wherein the analysis unit ( 29 ) with the control device ( 27 ) for transmission from the analysis unit ( 29 ) determined analysis data from the analysis unit ( 29 ) to the control unit ( 27 ) connected is. Water-conducting household appliance according to claim 1, characterized in that by means of the analysis unit ( 29 ) at least one marking component (M1, M2, M3) of the cleaning agent (RM1, RM2, RM3) is identifiable. water-bearing household appliance according to claim 2, characterized in that the marking component (M1, M2, M3) of the cleaning agent (RM1, RM2, RM3) Information about manufacturer, quantity, specific functionality and / or charge of the cleaning agent (RM1, RM2, RM3). water-bearing household appliance according to claim 2 or 3, characterized in that the marking component (M1, M2, M3) of the cleaning agent (RM1, RM2, RM3) in double function at the same time an active ingredient component (WK1, WK2, WK3) for cleaning of the dishes is. water-bearing household appliance according to one of the preceding claims, characterized that the cleaning agent (RM1, RM2, RM3) is a combination product from different active ingredient components, such as a cleaner component (WK1), a softener component (WK2) and / or a rinse aid component (WK3), and in particular carried out in tablet form. Water-conducting domestic appliance according to one of the preceding claims, characterized in that the analysis unit ( 29 ) a sensor arranged in particular in the liquid circuit of the domestic appliance or in the detergent-adding device ( 26 ), which at least partially detects the components of the cleaning agent (RM1, RM2, RM3). Water-conducting domestic appliance according to one of the preceding claims, characterized in that the analysis unit ( 29 ) has a reading unit, with on the packaging of the detergent (RM1, RM2, RM3) applied marking component (M1, M2, M3) are detectable. Water-conducting domestic appliance according to one of claims 1 to 6, characterized in that the analysis unit ( 29 ) is designed for radio frequency identification (RFID) of marking components (M1, M2, M3) attached to the packaging of the cleaning agents (RM1, RM2, RM3). Water-conducting household appliance according to one of the preceding claims, characterized in that the identification of the cleaning agent (RM1, RM2, RM3) by the analysis unit ( 29 ) is user-independent and / or automatically feasible. Water-conducting domestic appliance according to one of the preceding claims, characterized in that the analysis unit ( 29 ) is designed for the analysis of dissolved in a liquid detergent (RM1, RM2, RM3). Water-conducting domestic appliance according to claim 10, characterized in that the analysis unit ( 29 ) is designed to carry out an absorption and / or reflection measurement. water-bearing household appliance according to claim 10 or 12, characterized in that the absorption and / or reflection measurements with electromagnetic radiation in the Wavelength range of infrared radiation, ultraviolet radiation and / or visible Light feasible are. Water-conducting domestic appliance according to one of the preceding claims 10 to 12, characterized in that the analysis unit ( 29 ) comprises at least one turbidity sensor. Method for carrying out a washing program a water-bearing Household appliance in particular according to one of the preceding claims, in which method in a first step for the detection of the cleaning agent (RM1, RM2, RM3) whose composition is at least partially identified and in a second step, depending on the composition of matter the washing program (SP1, SP2, SP3) is adjusted. Cleaning agent, in particular for a water-conducting household appliance according to one of the preceding claims or for the method according to claim 14, which cleaning agent (RM1, RM2, RM3) at least one component, in particular active ingredient (WK1, WK2, WK3) for cleaning the dishes, which by means of an analysis unit ( 29 ) of the household appliance is identifiable. Cleaning agent according to claim 15, characterized in that the cleaning agent (RM1, RM2, RM3) as an additive has a marking component (M1, M2, M3), with which the cleaning agent (RM1, RM2, RM3) from the analysis unit ( 29 ) is identified. Composite consisting of at least one water-conducting household appliance, in particular according to one of claims 1 to 13, and of at least one cleaning agent (RM1, RM2, RM3), in particular according to claim 15 or 16, in which composite the household appliance and / or the cleaning agent (RM1, RM2, RM3) are designed such that by means of an analysis unit ( 29 ) of the household appliance, the substance composition of the cleaning agent (RM1, RM2, RM3) at least partially identi is ficable.

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