EP3843602A1

EP3843602A1 - Dishwasher, method for operating a dishwasher, and computer program product

Info

Publication number: EP3843602A1
Application number: EP19761827.5A
Authority: EP
Inventors: Alexander Schiele; Jakob Schultz; Georg Walther; Daniel Miller; Alberto Buogo; Addie MUENTZENBERGER; Anne-Katrin SPÄTE
Original assignee: BSH Hausgeraete GmbH; Reckitt Benckiser Brands Ltd
Current assignee: BSH Hausgeraete GmbH; Reckitt Benckiser Brands Ltd
Priority date: 2018-08-29
Filing date: 2019-08-28
Publication date: 2021-07-07
Also published as: DE102018214652A1; CN112638225A; US20210251461A1; WO2020043799A1; US11653814B2

Abstract

The invention relates to a dishwasher (1), in particular a domestic dishwasher, comprising a washing chamber (4), a controller (100) for running a washing program from a number of washing programs, and an automatic metering device (110) for automatically metering a plurality of metering quantities from a supply of cleaning agent provided as a solid material into the washing chamber (4), wherein the controller (100) is designed to clean the automatic metering device (110), actuate the automatic metering device (110) so as to switch same to a cleaning state, and run a washing program from the number of washing programs, said program being designed to clean the automatic metering device (110).

Description

Dishwasher, method for operating a dishwasher and computer program product

The present invention relates to a dishwasher, a method for operating a dishwasher and a computer program product.

Dishwashers are known which have an automatic metering device. Such an automatic dosing device is set up to store a quantity of a cleaning agent and to supply a dosing quantity of the stored cleaning agent to the washing compartment of the dishwasher while a washing program is being carried out.

Such an automatic dosing device can have movable components in order to achieve the automatic dosing of the dosing amount. Contamination can impair the function of the automatic dosing device. Cleaning the wash ware is no longer guaranteed.

Against this background, an object of the present invention is to propose an improved dishwasher.

According to a first aspect, a dishwasher, in particular a household dishwasher, with a washing compartment, a control device for carrying out a washing program from a number of washing programs and with an automatic dosing device is proposed. The automatic dosing device is set up for automatically dosing a plurality of dosing quantities into the washing compartment of a cleaning agent consisting of a solid and comprising a multiple of the dosing quantity. To clean the automatic dosing device, the control device is set up to control the automatic dosing device for changing to a cleaning state and to carry out a specific washing program for cleaning the automatic dosing device.

This dishwasher has the advantage that the automatic dosing device can be cleaned easily and comprehensively. In particular, the function be ensured on the automatic dosing device. Furthermore, the cleaning of the automatic dosing device can be carried out automatically without a user of the dishwasher having to carry out the cleaning.

The control device can be implemented in terms of hardware and / or software. In the case of a hardware implementation, the control device can be designed, for example, as a computer or as a microprocessor. In the case of a software implementation, the control device can be designed as a computer program product, as a function, as a routine, as part of a program code or as an executable object.

The automatic dosing device is set up for automatically dosing a plurality of dosing amounts of the cleaning agent. This means, in particular, that the automatic dosing device, when activated, for example by a control device of the dishwasher, doses a dosing amount of the cleaning agent into the washing compartment. For this purpose, the automatic dosing device includes, for example, a removal unit for removing the dosing amount from the detergent supply. The stock is kept in the dishwasher. The dispensed quantity removed can then be added directly into the wash cabinet or also via an intermediate device, in particular an addition channel, which is advantageously set up for the fluid-tight separation of the dispensing unit and the wash cabinet.

The automatic dosing device is in particular set up to hold a supply of the cleaning agent, the supply being able to include an amount of the cleaning agent which corresponds to a multiple of the dosing amount, for example 10 times, 20 times or even 50 times the dosing amount . The automatic dosing device thus advantageously makes it possible to carry out several rinsing cycles with the dishwasher without a user having to refill the detergent.

For example, the supply comprises up to 500 ml or 500 g of the cleaning agent and the dosage amount is 10 ml or 10 g of the cleaning agent. Then, once the supply is full, the dosing quantity can be removed 50 times before the supply is used up. The dosing amount is determined, for example, so that lightly soiled items can be cleaned with it. In the case of heavily soiled items, the total dosage can be increased by repeatedly dosing the dosing quantity. In embodiments of the automatic dosing device, the dosing amount can be extremely small, for example a milligram, so that a total dosing of the cleaning agent can be set very finely.

The cleaning agent is in particular present as a solid. The cleaning agent in particular comprises cleaning agent particles that have a size of, for example, a few micrometers to a few millimeters in diameter. For particle sizes up to about 1 mm, powder is spoken of, for example. In the case of particle sizes in the range up to approximately 5 mm, one speaks, for example, of pellets or tablets. The cleaning agent is advantageously pourable or free-flowing. Free-flowing or pourable means in particular that the cleaning agent behaves like a liquid under the action of gravity.

If the dishwasher is used, dirt can accumulate in the automatic dosing device over time and / or detergent residues that stick to a surface along a dosing path during dosing can clump together. This can lead to blockage of a channel or blockage of a component. To avoid this, the automatic dosing device can be cleaned using the specific washing program.

In particular, it is provided that the automatic dosing device is cleaned regularly, for example after a certain number of dishwashing cycles with the dishwasher or after a certain period of time, and / or event-controlled, for example if a blockage of a component of the automatic dosing device is detected or is recommended.

In order to carry out the cleaning, the automatic dosing device is put into a cleaning state by the control device. The cleaning state can be characterized, for example, by moving movable components or elements into a specific position. It can further be provided that at least at least some elements of the automatic dosing device, when it is in the cleaning state, can be dismantled by a user.

The specific rinsing program is especially designed for automatic cleaning of the automatic dosing device. Washing program parameters, such as a running time, a quantity of water, a washing liquor temperature and / or a circulating pump speed, can be specifically selected or predetermined. The specific washing program advantageously has a short running time compared to the other washing programs which are intended for washing dishes, so that the dishwasher can be used again for washing dishes after a short time.

It can be provided that the specific washing program is integrated as a sub-program step of a washing program for washing items to be washed. For example, the control device is set up to carry out the specific washing program as a partial program step after a partial program step, cleaning a normal washing program, if the items to be washed have already been cleaned and are thus free of soiling. In particular, the control device is set up to do this automatically, that is to say without additional user interaction. For example, during the execution of a washing program for washing dishes, the control device determines that the automatic dosing device requires cleaning or is in a state in which cleaning can be carried out, whereupon the washing program just carried out with the sub-program step of the specific washing program. grammes is added. This advantageously takes place, for example, before rinsing the rinsing program in a sub-program step.

According to one embodiment of the dishwasher, the automatic dosing device has a dosing unit arranged in a first fluid-tight housing of the automatic dosing device for dosing the dosing quantity, the first housing having a cleaning opening which can be closed in a fluid-tight manner and which, in the cleaning state, of the automatic Dosing device is at least temporarily open.

The fluid-tight housing protects the dosing unit from dirt and moisture during normal operation of the dishwasher. The dosing unit is accessible from the outside via the cleaning opening, in particular for cleaning and / or maintenance purposes. lent. The cleaning opening can be closed, for example, by means of a flap or a lid. In the closed state, the flap or the cover are in particular mechanically locked so that the cleaning opening cannot be opened accidentally. In the cleaning state of the automatic dosing device, the cleaning opening is open. For example, the flap or the lid is unlocked so that the user can open the flap or the lid by pivoting and / or remove it completely from the automatic metering device. It can also be provided that a drive means, for example a spring and / or an electric motor, automatically swivels the flap or the cover when the locking is released.

According to a further embodiment of the dishwasher, the automatic dosing device has a receiving unit arranged in a second fluid-tight housing of the automatic dosing device for receiving a removable storage container for providing the supply of the cleaning agent, the second housing having a cleaning opening which can be closed in a fluid-tight manner and which is in the cleaning state the automatic dosing device is at least temporarily open.

The fluid-tight housing protects the receiving unit and the storage container from dirt and moisture during normal operation of the dishwasher. The cleaning unit is accessible on the one hand by means of the cleaning opening for cleaning and maintenance purposes. On the other hand, the removable storage container can be removed and inserted when the cleaning opening is open. The cleaning opening can be closed, for example, by means of a flap or a lid. The flap or the lid are locked mechanically in the closed state, so that accidental opening of the cleaning opening is excluded. In the cleaning state of the automatic dosing device, the cleaning opening is open. For example, the flap or the lid is unlocked so that the user can open the flap or the lid by pivoting and / or remove it completely from the automatic metering device. Provision can also be made for a drive means, for example a spring and / or an electric motor, to pivot the flap or the cover automatically when the lock is released. According to a further embodiment of the dishwasher, the automatic metering device has a fluid-tightly closable addition channel for fluidically connecting the automatic metering device to the wash cabinet, the fluid-tightly closable addition channel being open in the cleaning state of the automatic metering device.

The addition channel is arranged in particular between the metering unit and the wash cabinet. During a wash cycle, the addition channel is preferably closed in a fluid-tight manner, so that the metering unit is not exposed to the moisture in the wash cabinet. For dosing, it can in particular be provided that the dosing unit pre-doses in the closed addition channel and then the addition channel is briefly opened in order to dispense the pre-dosed cleaning agent into the wash cabinet.

The addition channel is exposed to an increased extent to the influences from the wash cabinet, which can be detrimental to its sealing function, for example. It can be provided that a flap for covering, in particular for water-tight and / or fluid-tight sealing, is arranged at the mouth of the addition channel into the washing compartment. In the cleaning state of the automatic metering device, the addition channel and any flap that may be provided are opened, so that a fluidic connection is established between the metering unit and the wash cabinet. This allows rinsing liquor to penetrate into the addition channel and rinse it through, so that dirt and / or encrusted cleaning agent residues can be reliably removed from the addition channel.

According to a further embodiment of the dishwasher, the automatic dosing device has a drive means for driving at least one movable element for dosing the dosing amount, the control device being set up to control the drive means for moving the movable element while the specific washing program is being carried out.

The movable element comprises in particular a worm, a gear, a linear actuator and the like. The movable element can be moved in a specific range of motion, for example pivotable or rotatable over a specific angular range. In particular, the movable element is at least once moved over the entire range of motion, preferably it is moved several times over the entire range of motion. For example, a screw is turned back and forth. In this way, a comprehensive cleaning of the movable element is ensured.

According to a further embodiment of the dishwasher, the movable element is assigned a sensor unit for detecting a movement of the movable element and for outputting a sensor signal as a function of the detected movement, the control device being set up to detect a blockage of the movable element as a function of the sensor signal.

In this embodiment, it is detected when the movable member is blocked. A blocked moving element can lead to the failure of the automatic dosing device. In this embodiment, corresponding countermeasures, in particular cleaning of the automatic metering device, can thus be carried out in a targeted manner.

The sensor unit advantageously detects, for example, a motor current and / or a voltage of an electric motor of the movable element as the sensor signal. In particular, the sensor unit can also be integrated into the control device as a function and / or in terms of hardware, so that a separate sensor unit can be dispensed with.

According to a further embodiment of the dishwasher, the automatic metering device is set up for metering detergent powder, detergent pellets or detergent tablets.

According to a further embodiment of the dishwasher, a user interface is provided for outputting user information as a function of the cleaning status and / or the detected blockage of the movable element of the automatic dosing device.

In this embodiment, the user can be informed, for example, that a movable element of the automatic dosing device is blocked and that the automatic dosing device should be cleaned. The user information can in particular include various other information, in particular instructions for cleaning the automatic dosing device.

The user interface comprises, for example, a display on a front of the household dishwasher and / or a data interface, in particular for wireless data transmission, such as WLAN, Bluetooth® and / or a mobile radio interface. By means of a data interface, the user information can be transmitted, for example, to a connected device of the user, for example a mobile device, such as a smartphone or a tablet, and can be output accordingly by the device.

According to a further embodiment of the dishwasher, it has a hydraulic system specific to the specific washing program.

A specific hydraulic system includes, in particular, valves, nozzles, water-carrying elements and the like. Such a specific hydraulic system enables the automatic dosing device to be cleaned in a targeted manner. It can be provided that the specific hydraulic system can be removed and that a user or a service person inserts the specific hydraulic system into the dishwasher in order to carry out the specific washing program.

According to a further embodiment of the dishwasher, it has an addition unit for adding a single dose of a further cleaning agent. The control device is set up to control the addition unit for adding the further cleaning agent while the specific washing program is being carried out.

The addition unit can in particular have a container to be filled by the user with the further cleaning agent before a rinsing run. The addition unit can be used in particular to add the further cleaning agent during the cleaning of the automatic dosing device by means of the specific washing program. The further cleaning agent is in particular a specific cleaning agent, but can also be a cleaning agent to be used for washing dishes. In embodiments it can be provided that for cleaning the automatic dosing device a specific cleaning agent is added to the washing compartment and / or a specific cleaning cartridge is provided instead of the storage container with the cleaning agent in the receiving unit. The cleaning cartridge has the advantage that its content can be dispensed during the cleaning of the automatic dosing device via the dosing path that the cleaning agent also takes through the automatic dosing device during dosing. The cleaning cartridge in particular comprises a liquid cleaning agent.

Furthermore, the cleaning cartridge can have mechanical cleaning agents, in particular brushes. By moving the cleaning cartridge in the receiving unit, for example rotating it, a mechanical cleaning effect can be achieved with the brushes.

According to a second aspect, a method for operating a dishwasher, in particular a household dishwasher, with a washing compartment, a control device for carrying out a washing program from a number of washing programs and with an automatic dosing device for automatically dosing a plurality of dosing quantities Cleaning agent is suggested from a supply of the cleaning agent comprising a plurality of metered quantities into the wash cabinet. In a first method step, the control device controls the automatic dosing device to change into a cleaning state. In a second method step, the control device carries out a washing program specific for cleaning the automatic dosing device.

This method can be carried out, for example, with a dishwasher according to the first aspect.

Furthermore, a computer program product is proposed which causes the method as explained above to be carried out on a program-controlled device. io

A computer program product, such as a computer program means, for example as a storage medium, such as Memory card, USB stick, CD-ROM, DVD, or in the form of a downloadable file from a server in a network. This can take place, for example, in a wireless communication network by transmitting a corresponding file with the computer program product or the computer program means.

The embodiments and features described for the proposed device apply correspondingly to the proposed method.

Further possible implementations of the invention also include combinations of features or embodiments described above or below with reference to the exemplary embodiments, which are not explicitly mentioned. The person skilled in the art will also add individual aspects as improvements or additions to the respective basic form of the invention.

Further advantageous refinements and aspects of the invention are the subject of the dependent claims and the exemplary embodiments of the invention described below. The invention is explained in more detail below on the basis of preferred embodiments with reference to the attached figures.

1 shows a schematic perspective view of an exemplary embodiment of a dishwasher;

2 shows a schematic side view of a further exemplary embodiment of a dishwasher in the cleaning state;

Fig. 3 shows schematically an embodiment of an automatic dosing device; and

4 shows a schematic block diagram of an exemplary embodiment of a method for operating a dishwasher. In the figures, elements that are the same or have the same function have been provided with the same reference symbols, unless stated otherwise.

1 shows a schematic perspective view of an embodiment of a dishwasher 1, which is designed here as a household dishwasher. The household dishwasher 1 comprises a washing container 2, which can be closed by a door 3, in particular in a watertight manner. For this purpose, a sealing device can be provided between the door 3 and the washing container 2. The rinsing container 2 is preferably cuboid. The washing container 2 can be arranged in a housing of the domestic dishwasher 1. The washing container 2 and the door 3 can form a washing compartment 4 for washing dishes.

The door 3 is shown in its open position in FIG. 1. The door 3 can be closed or opened by pivoting about a pivot axis 5 provided at a lower end of the door 3. With the help of the door 3, a loading opening 6 of the washing compartment 2 can be closed or opened. The washing compartment 2 has a base 7, a ceiling 8 arranged opposite the base 7, a rear wall 9 arranged opposite the closed door 3 and two side walls 10, 11 arranged opposite one another. The bottom 7, the ceiling 8, the rear wall 9 and the side walls 10, 1 1 can for example be made of a stainless steel sheet. Alternatively, the base 7 can be made of a plastic material, for example.

The household dishwasher 1 also has at least one washware receptacle 12 to 14. Preferably, several, for example three, washware receptacles 12 to 14 can be provided, the washware receptacle 12 being a lower washware receptacle or a lower basket, the washware receptacle 13 being an upper washware receptacle or an upper basket and the washware receptacle 14 being a cutlery drawer. As FIG. 1 also shows, the items to be washed 12 to 14 are arranged one above the other in the washing container 2. Each washware receptacle 12 to 14 can either be moved into or out of the washing tub 2. In particular, each washware receptacle 12 to 14 can be pushed or retracted into the washing compartment 2 in an insertion direction E and can be pulled out or pulled out of the washing compartment 2 in a pull-out direction A against the insertion direction E. A control device 100 and an automatic dosing device 110 are also arranged on the door 3 of the household dishwasher 1. The control device 100 is set up to control, regulate and / or control all controllable components of the domestic dishwasher 1, such as valves, pumps, heating, water switch, addition unit and the like, which are not shown for reasons of clarity. In particular, the control device 100 is set up to control the automatic metering device 110. The automatic metering device 110 is set up to meter one or more metered amounts of a solid cleaning agent into the wash cabinet 4 with a corresponding control by the control device 100. For this purpose, the automatic dosing device 110 has, for example, a dosing unit 114 (see FIG. 3). The automatic dosing device 110 can furthermore have further components / elements, such as a fluid-tight housing 112, a cleaning opening 113, a receiving unit 113, an addition channel 120, a sealing unit 121, a movable element 122 and / or a sensor unit 123 (see Fig. 2 and Fig.3).

The control device 100 is set up to carry out a washing program from a number of washing programs. The number includes, for example, several different washing programs for washing dishes, such as a gentle program, an intensive program, an energy-saving program, etc. Furthermore, the number includes at least one specific washing program that is provided for cleaning the automatic dosing device 110 and specific washing parameters here too. In the following, the specific washing program can be referred to as a cleaning program.

2 shows a schematic side view of a further exemplary embodiment of a dishwasher 1, which is again designed as a household dishwasher 1, which is currently in the cleaning state. The dishwasher 1 shown can be, for example, the household dishwasher 1 of FIG. 1. The household dishwasher 1 is shown here with the door 3 in the closed position. A spray arm 15 is arranged on a floor 7 of the household dishwasher 1, which in normal operation of the household dishwasher 1 is for washing dishes in the wash cabinet 4 with washing liquid. te is set up. A specific hydraulic system 16 is arranged on a ceiling 8 of the household dishwasher 1 and can be used specifically for cleaning the automatic dosing device 110. A user interface 102 is arranged on the outside of the door 3, which here comprises a digital display and by means of which user information can be output. The user information includes, for example, an indication that a movable element 122 of the automatic metering device 110 is blocked, which is why the automatic metering device 110 should be cleaned.

The automatic dosing device 110 is arranged on the inside of the door 3. The automatic dosing device 110 comprises a receiving unit 118 arranged in a fluid-tight housing 112 for receiving a removable storage container, which has been removed in the present case. The receiving unit 118 can be rotated about an axis so that the storage container can be rotated with the receiving unit 118 in the inserted state. The receiving unit 118 thus forms a movable element 122 of the automatic dosing device 110. The receiving unit 118 is accessible by means of a cleaning opening 113, which can be closed in a fluid-tight manner by a flap 116. A sensor unit 123 is arranged in the upper region of the fluid-tight housing 1 12 and is set up to detect a movement of the receiving unit 1 18. An addition channel 120 adjoins the fluid-tight housing 112 and can be closed in a fluid-tight manner with a sealing element 121.

The automatic dosing device 110 is shown in its cleaning state, which is characterized in the present case in that the flap 116 is open, the storage container is removed and the sealing element 121 is open. With this, the automatic dosing device 110 can be cleaned efficiently when the control device 100 (see FIG. 1) executes the cleaning program. In the cleaning program, the specific hydraulic system 16, in particular, is supplied with rinsing liquor at least temporarily.

FIG. 3 shows a schematic exemplary embodiment of an automatic metering device 110, as can be used for example in the domestic dishwasher 1 of FIG. 1 or FIG. 2. The automatic dosing device 110 in the present case comprises a holding unit 118 for holding a removable storage container (not shown), which has a round shape in this embodiment. The receiving unit 118 is configured here in such a way that the storage container can be rotated in the place where the dosing or predosing is effected by rotating the storage container. The receiving unit 118 is arranged in a housing 112 which can be closed in a fluid-tight manner and is accessible via a cleaning opening 113. The cleaning opening 11 can be closed in a fluid-tight manner in particular with a flap 116 (see FIG. 2). When the cleaning opening 11 is open, the flap 116 can be opened by a user or also automatically. Then, for example, the storage container can be removed and the receiving unit 118 can be cleaned unhindered.

A metering unit 114 is also arranged in the fluid-tight housing 112. The dosing unit 114 controls, for example, the dosing of the dosing amount from the storage container into the wash cabinet 4 (see FIGS. 1 and 2). The dosing unit 114, like the receiving unit 118, is accessible via a cleaning opening 113.

The automatic metering device 110 furthermore has an addition channel 120 which, in particular, connects the metering unit 114 with the wash chamber 4 in terms of flow technology, an outlet 119 opening into the wash room 4 at the lower end of the addition channel 120. On the addition channel 120, a sealing element 121 is arranged, which is set up for the fluid-tight sealing of the addition channel 120. For example, the addition channel 120 consists of a squeeze tube and the sealing element 121 is designed in the form of a bracket which is set up to squeeze the squeeze tube. The outlet 119 can be closed, for example, by an openable flap (not shown).

In the cleaning state of the automatic dosing device 110, in particular at least one of the two cleaning openings 113 is in the opened state. Then the housing 112 is not closed in a fluid-tight manner. Furthermore, it can be provided that the storage container is removed from the receiving unit 118 in the cleaning state. The sealing element 121 is also open, so that there is a fluidic connection between the metering unit 114 and the washing compartment 4. In particular, rinse liquor, which is dispensed in the direction of the opened cleaning opening 113, can penetrate into the automatic metering device 110 via the respective cleaning opening 113 and loosen dirt and / or encrusted cleaning agent there and thus the Clean automatic dosing device 1 10. The penetrated washing liquor can flow back into the washing compartment 4 via the addition channel 120.

FIG. 4 shows a schematic block diagram of an exemplary embodiment of a method for operating a dishwasher 1, for example the domestic dishwasher 1 of FIG. 1 or FIG. 2. The dishwasher 1 has a control device 100 and an automatic metering device 110.

In a first method step S1, the automatic dosing device 110 is controlled by a control device 100 of the dishwasher 1 in order to change to a cleaning state. In particular, existing cleaning openings 113 (see FIGS. 2 and 3) are opened so that contaminated components of the automatic metering device 110 can be cleaned.

In a second method step S2, a washing program specific for cleaning the automatic metering device 110 is carried out. The specific washing program can in particular provide that movable components of the automatic dosing device 110, such as, for example, a receiving unit 118 and / or a dosing unit 114 (see FIG. 3), are deflected or moved during the execution of the specific washing program, so that possibly hidden sections can also be cleaned. For example, a rotatable receiving unit 118, as shown in FIG. 2 or 3, is rotated several times, preferably in both directions of rotation.

Although the present invention has been described using exemplary embodiments, it can be modified in many ways.

Reference symbols used:

1 dishwasher

2 rinsing tanks

3 door

4 washroom

5 swivel axis

6 loading opening

7 floor

8 blanket

9 rear wall

10 side wall

1 1 side wall

12 load items

13 Washware intake

14 Washware intake

15 spray arm

16 specific hydraulic system

100 control device

110 automatic dosing device

102 User interface

112 housing

113 cleaning opening

114 dosing unit

116 flap

1 18 acquisition unit

119 outlet

120 addition channel

121 sealing element

122 movable element

123 sensor unit

A Extension direction

E insertion direction 5 S1 process step S2 process step

Claims

PATENT CLAIMS

1. Dishwasher (1), in particular a household dishwasher, with a washing compartment (4), a control device (100) for carrying out a washing program from a number of washing programs and with an automatic dosing device (1 10) for automatic dosing of a plurality of dosing quantities a supply of a detergent present as a solid in the washing compartment (4), the control device (100) for cleaning the automatic dosing device (110) being set up to control the automatic dosing device (1 10) for changing to a cleaning state and one for cleaning the automatic dosing device (1 10) to carry out a specific washing program out of the number of washing programs.

2. Dishwasher according to claim 1, characterized in that the automatic dosing device (1 10) has a dosing unit (1 14) arranged in a first fluid-tight housing (1 12) of the automatic dosing device (1 10) for dosing the dosing amount , wherein the housing (112) has a cleaning opening (1 13) which can be closed in a fluid-tight manner and which is opened at least temporarily in the cleaning state of the automatic dosing device (1 10).

3. Dishwasher according to claim 1 or 2, characterized in that the automatic dosing device (1 10) in a second fluid-tight housing (112) of the automatic dosing device (1 10) arranged receiving unit (1 18) for receiving a removable storage container for Providing the supply of the cleaning agent, the housing (112) having a cleaning opening (1 13) which can be closed in a fluid-tight manner and which is opened at least temporarily in the cleaning state of the automatic dosing device (1 10).

4. Dishwasher according to one of claims 1-3, characterized in that the automatic dosing device (1 10) has a fluid-tight lockable feed channel (120), which connects the automatic dosing device (1 10) with the wash cabinet (4), wherein the fluid-tightly closable addition channel (120) is open in the cleaning state of the automatic metering device (110).

5. Dishwasher according to one of claims 1-4, characterized in that the automatic dosing device (1 10) has a drive means for driving at least one movable element (122) for dosing the dosing amount, the control device (100) being set up for this to drive the drive means for moving the movable member (122) while the specific washing program is being performed.

6. Dishwasher according to claim 5, characterized in that the movable element (122) is assigned a sensor unit (123) for detecting a movement of the movable element (122) and for outputting a sensor signal as a function of the detected movement , wherein the control device (100) is set up to detect a blockage of the movable element (122) as a function of the sensor signal.

7. Dishwasher according to one of claims 1-6, characterized in that the automatic metering device (1 10) is set up for metering detergent powder, detergent pellets or detergent tablets.

8. Dishwasher according to one of claims 1-7, characterized in that a user interface (102) for outputting user information as a function of the cleaning status and / or the detected blockage of the movable element (122) of the automatic dosing device (110) ) is provided.

9. Dishwasher according to one of claims 1-8, characterized in that it has a hydraulic system (16) specific for the specific washing program.

10. Dishwasher according to one of claims 1-9, characterized in that it has an addition unit for adding a single dose of a further cleaning agent, wherein the control device (100) is set up to add the unit for adding the further cleaning agent while the specific wash program.

1 1. Method for operating a dishwasher (1), in particular a household dishwasher, with a washing compartment (4), a control device (100) for carrying out a washing program from a number of washing programs and with an automatic dosing device (1 10) for automatically dosing a plurality of dosing amounts of a cleaning agent from a supply of the cleaning agent comprising a plurality of dosing amounts into the washing compartment (4), with:

Control (S1) of the automatic dosing device (110) for changing into a cleaning state by the control device (100), and

Carrying out (S2) a washing program specific for cleaning the automatic dosing device (110).

12. Computer program product which causes the execution of the method according to claim 11 on a program-controlled device.