DE102021110759A1 - Dosing of a solid detergent in a domestic dishwasher - Google Patents

Abstract

A household dishwasher is disclosed here, which comprises a washing compartment, a door pivotably attached to the washing compartment for closing a washing chamber formed in the washing compartment, and a dosing system arranged on the door for a solid detergent in tablet form, for example. In certain embodiments, the dosing system comprises a ring magazine with a rotatably arranged rotor, which delimits a plurality of storage compartments distributed in the circumferential direction and open radially outwards, each for receiving a cleaning tablet. In certain embodiments, a chute is arranged below the rotor, which allows a cleaning tablet that has fallen into the chute to fall freely up to an outlet opening at which the cleaning tablet can pass into the washing compartment. By rotating the rotor, a storage compartment filled with a cleaning tablet can be brought into radial opposition to a dosing opening at which the chute begins.

Description

The present disclosure generally deals with the dosing of a solid detergent in a domestic dishwasher.

In the case of dishwashers for private households, the technical development is moving towards providing a magazine in the machine in which a larger quantity of a solid cleaning agent can be stored. In the case of liquid rinse aids, there are already solutions for storing an amount of liquid sufficient for a plurality of operating cycles of the dishwasher. For the actual cleaning agent, which often comes in the form of compacted cleaning tablets or in the form of a free-flowing cleaning powder, work is also increasingly being done on storage solutions with automated dosing.

Regarding the state of the art with regard to solutions for storing and dosing a powder or tablet-form cleaning agent in a household dishwasher, reference can be made to the following documents, for example: DE 10 2014 115 512 A1 ; WO 2009/022223 A1 ; CN 111743495A ; DE 10 2019 009 054 A1 .

Cleaning tablets are particularly easy for a user to handle. If the user is required to fill a cleaning powder into a magazine of a powder dispenser, the user can easily spill parts of the cleaning powder. Such inconveniences are usually not to be feared with cleaning tablets. However, particularly in the case of cleaning tablets that are not spherical, oval or disk-like in shape, it is regularly necessary to store the cleaning tablets in the magazine in an orderly manner in order to reliably remove a defined number of cleaning tablets (usually one tablet per run) when the dishwasher is in operation be able. Magazines for the orderly storage of cleaning tablets can, for example, form one or more stacking shafts in which the cleaning tablets can be stacked one on top of the other (see e.g DE 10 2019 009 054 A1 ).

Another magazine design, which is to be considered in more detail within the scope of the present disclosure, is that of a ring magazine, which enables cleaning tablets or defined, measured portions of a cleaning powder to be stored in a ring arrangement. The publications mentioned above WO 2009/022223 A1 and CN 111743495A show ring magazine solutions with a plurality of storage compartments distributed along a ring, in each of which a cleaning tablet or powder portion can be stored. According to WO 2009/022223 A1 the detergent contained in a storage compartment is gradually washed out of the storage compartment by a jet of water. If the various storage compartments of the magazine are not perfectly sealed from each other (which will usually be difficult to achieve), splashing water can reach the portions of the cleaning agent stored in the other storage compartments and lead to unwanted clumping and sticking there. CN 111743495A provides a slide for pushing the cleaning tablet kept ready in a storage compartment out of the storage compartment to the side. The slider requires considerable additional design and control effort.

One object of the invention is to provide a dosing system that is suitable and specific for use in a dishwasher and is characterized by a simple design and a simple mode of operation.

To solve this problem, the invention provides a domestic dishwasher, the dishwasher having a washing compartment, a door attached to the washing compartment so that it can pivot about a horizontal door pivot axis near the floor, for closing a washing chamber formed in the washing compartment, and a dosing system for a solids cleaning supplies included. The dosing system comprises: a rotor which is arranged in a magazine chamber so as to be rotatable about a rotor axis and delimits a plurality of storage compartments which are distributed in the circumferential direction about the rotor axis and are open radially outwards for receiving one portion of a solid cleaning agent each; a dosing opening in a boundary wall of the magazine chamber, wherein each of the storage compartments can be brought individually one after the other radially opposite to the dosing opening by rotating the rotor in order to empty the relevant storage compartment through the dosing opening; and a drop chute connected to the magazine chamber through the metering opening. The rotor is arranged with its plane of rotation essentially parallel to a main plane of the door, with the dosing opening being arranged under the rotor in such a way that when the door is closed and one of the storage compartments is moved radially opposite the dosing opening, gravity alone prevents a portion of the solid cleaning agent stored in the relevant storage compartment is made possible from the relevant storage compartment through the dosing opening into the chute.

According to this solution, it is sufficient to turn the rotor into a position in which one of the Storage compartments is located in radial opposite to the metering opening. In this dosing position of the relevant storage compartment, the portion of the solid cleaning agent located therein can fall out of the storage compartment radially solely by gravity and fall through the dosing opening into the chute. The storage compartment does not have to be washed out by means of a water jet, nor is it necessary to push the portion of solid cleaning agent out of the storage compartment laterally (horizontally) using an additional pusher. The dosing opening can be formed, for example, in a chamber boundary wall of the magazine chamber which encloses the rotor in the manner of a ring and is formed by a chamber housing.

In certain embodiments, the rotor is built into the door with its plane of rotation essentially parallel to the main plane of the door, with the drop chute adjoining the magazine chamber below it. The position designation below refers to the state when the door is closed. Typically, the door is attached to a washing compartment of the dishwasher so that it can pivot about a horizontal pivot axis that is close to the floor. The closed door therefore has a vertical orientation; to open it, the door is pivoted in the horizontal direction. In order to enable gravity-driven discharge of cleaning agent from the storage compartments into the chute, the chute must therefore be arranged under the rotor in the direction of the pivot axis near the ground. By gradually turning the rotor further, a portion of cleaning agent can be dispensed from each of the storage compartments into the chute one after the other.

The solid cleaning agent can be in the form of a free-flowing powder or tablets. Such cleaning tablets are usually compacted into a defined three-dimensional shape from one or more powdery starting substances (sometimes with different active ingredient compositions). An approximately cuboid shape of the cleaning tablets is often encountered here, in which the cleaning tablets have an approximately rectangular outline in a plan view on the flat side and have greater length and width in the plan view on the flat side than the thickness seen on the narrow side. However, the invention is of course not limited to such cuboid cleaning tablets; the use of differently shaped cleaning tablets is equally conceivable within the scope of the present disclosure. As far as a portion of the solid cleaning agent is mentioned here, the portion in the case of cleaning tablets consists of a defined number of such cleaning tablets, e.g. a single cleaning tablet. In the case of a powdery cleaning agent, a portion consists of the amount of powder filled into the respective storage compartment. This quantity can be measured in a defined manner, in particular if the magazine has been filled with cleaning agent by the manufacturer, or it can be a quantity determined by eye, e.g. if it was filled in manually by a consumer as part of an initial or subsequent filling.

In certain embodiments, the chute defines a fall section that extends from the dosing opening in particular in a substantially straight line down to an outlet opening for the free fall of a portion of the solid cleaning agent in the chute, with the chute opening out at the outlet opening from the door to the washing compartment. In these embodiments, the portion of the solid cleaning agent removed from the magazine can fall through the dosing opening and through the entire chute to the outlet opening and out of it, without additional aids, solely by the influence of gravity. After emerging from the outlet opening, the portion of the solid cleaning agent can be caught and dissolved by the washing water sprayed in the washing chamber or collected there.

In certain embodiments, the chute is immovable relative to the metering orifice. For example, the dosing system includes a common housing component, which delimits at least parts of the magazine chamber and at the same time at least parts of the chute.

In certain embodiments, the dosing system includes a drive mechanism for the reversible rotary drive of the rotor. In addition, a control unit is provided, which is set up to control the drive mechanism with a changing direction of rotation of the rotor. With these measures, the dosing system offers the structural and control-technical prerequisites to drive the rotor with changing direction of rotation.

Changing the direction of rotation of the rotor can serve various purposes. For example, it cannot be ruled out that a cleaning tablet may get caught in its storage compartment or otherwise be held in place so that it does not immediately fall out of the storage compartment after the storage compartment has been moved in a first approach stroke opposite the dosing opening. A single or repeated back and forth movement of the storage compartment over the dosing opening can help in such a case that the cleaning tablet still falls out of the storage compartment. Accordingly, certain embodiments provide for the control unit to control the drive mechanism in this way is directed that to empty one of the storage compartments, the storage compartment in question is moved back and forth at least once. In particular, the storage compartment in question can be moved at least once, at least partially, over the dosing opening and then back to radially opposite the dosing opening.

Alternately or additionally, it can be useful to be able to change the direction of rotation of the rotor in order to verify that a storage compartment has actually been emptied. In certain embodiments, it is provided that the dosing system comprises a sensor system which allows the detection of the presence of a portion of the solid cleaning agent in a storage compartment before the storage compartment in question is moved into an emptying position (dosing position) relative to the dosing opening, the control unit is set up to control the drive mechanism in such a way that, after one of the storage compartments has been moved into the emptying position, the relevant storage compartment is moved back into the detection range of the sensor system. By moving the storage compartment back, the sensor system can be used to check whether there is still a portion of the solid cleaning agent in the storage compartment. If not, there is certainty that the storage compartment was properly emptied, provided that the storage compartment was recognized as being filled before the emptying position was approached. If so, the control unit can e.g. output a visual and/or acoustic warning message for the user and/or attempt to empty the same storage compartment again and/or try to empty a next storage compartment.

Certain embodiments include a drive mechanism for driving the rotor in rotation, a control unit for controlling the drive mechanism and a sensor system coupled to the control unit, which allows the detection of the presence of a portion of the solid cleaning agent in a storage compartment. The control unit is set up to control the drive mechanism to move another of the storage compartments into the emptying position when it detects that a portion of the solid cleaning agent remains in one of the storage compartments after this storage compartment has been moved at least once into an emptying position relative to the dosing opening. Even if it is not possible to empty one of the storage compartments (e.g. because a cleaning tablet is stuck in the relevant storage compartment as a result of the effects of moisture and could not fall out), the functionality of the dosing system is retained. If a storage compartment cannot be emptied within a specified number of emptying attempts, the dosing system tries to empty a next storage compartment. The run of a dishwashing program therefore does not have to be interrupted.

If the control unit recognizes that a storage compartment could not be emptied despite one or more attempts, the control unit can issue an audible and/or visual indication for an operator. This notice is a prompt to the operator to clean the magazine and remove any stuck amounts of cleaning agent.

It cannot be ruled out that hot steam and/or spray water from the rinsing area will penetrate the chute and/or the magazine chamber. Hot steam or splashing water can be detrimental to the cleaning agent stored in the ring magazine. For example, the cleaning agent can partially dissolve and form clumps or stick to the walls of the storage compartments. The penetration of hot moisture can be counteracted by a blown air flow, which is introduced into the magazine chamber and/or into the chute. Accordingly, certain embodiments provide that the dosing system includes a fan for generating a blown air flow into the magazine chamber and/or into the chute.

The blower can be directly connected to the chute for blowing air supply. Directly means here that a blown air supply connection leads from an impeller chamber, in which an impeller of the blower is arranged, directly to the chute, without first passing through other parts of the dosing system, in particular the magazine chamber. In other embodiments it is provided that the blower is in direct blowing air supply connection with the magazine chamber. From there, blown-in air can then penetrate into the chute. In such embodiments, there is a blast air supply connection between the fan and the chute through the magazine chamber.

The chute can be selectively lockable and unlockable. For this purpose, the dosing system can comprise a locking element which can be moved back and forth in a translatory manner between a blocked position and a release position, which in the released position releases the chute for a portion of the solid cleaning agent to fall through to the outlet opening and in the blocked position releases the chute to prevent a portion from falling through of the solid cleaning agent blocks the outlet opening. The blocking element can in particular be designed in such a way that in its blocking position it essentially closes the entire shaft cross-section of the chute. Thus, when the chute is closed (ie when the blocking element is in the blocking position), an undesired entry of steam and/or spray water into the parts of the dosing system located above the blocking element can be prevented. For dosing purposes, however, the chute must occasionally be opened so that a portion of the cleaning agent removed from the magazine can reach the end of the chute and from there the washing chamber of the dishwasher. In such open phases of the chute, it is advisable to activate the blower so that hot steam and/or spray water can be kept away from the magazine as far as possible. Embodiments of the invention therefore provide a control unit for the blower, with the control unit being set up to control the blower at least during a phase in which the blocking element is in the release position for the purpose of generating blown air.

Of course, it is not impossible to control the blower additionally during such phases in which the blocking member is in the blocking position and the chute is accordingly closed, to generate blown air. Because it cannot be ruled out that there are leaks through which steam and/or spray water can penetrate into the magazine chamber. It can therefore make sense to operate the blower even when the chute is blocked. For example, in certain embodiments it is conceivable to drive the fan essentially continuously during the entire wet phase of an operating program of the dishwasher and, if desired, even to run it during a subsequent drying phase in which the dishwasher takes measures to actively dry the dishes .

According to specific embodiments, the dosing system comprises a pusher in order to force a portion of the solid cleaning agent stored in one of the storage compartments radially outwards in the direction of fall. The pusher can be designed, for example, as a spring pusher or as an electromagnetically actuated pusher.

Certain embodiments provide that the dosing system comprises an electrically controllable drive mechanism for rotating the rotor and a magazine cover, which is held in particular in a pivotable manner, for closing an access to the magazine chamber. The magazine cover is removable from the magazine chamber without disconnecting a mechanical drive connection between the drive mechanism and the rotor, and with the magazine cover removed, each of the storage compartments is accessible through the access for filling with a portion of the solid cleaning agent.

The rotor can be secured against axial removal from the magazine chamber by at least one fastening element (e.g. a screw), the loosening of which requires an auxiliary tool.

According to a further aspect, the invention provides a dosing system for a household dishwasher, comprising: a rotor which is or can be arranged in a magazine chamber so as to be rotatable about a rotor axis, the rotor having a central pot section delimited by a pot casing and a pot bottom and a plurality of radially outside of the central pot section forms storage compartments distributed in the circumferential direction and overlapping axially with the pot casing for receiving one portion of a solid cleaning agent each; and an electrically controllable drive mechanism for driving the rotor in rotation, with electromechanical and/or mechanical components of the drive mechanism, in particular an electric motor and/or a reduction gear, being accommodated inside the pot, at least partially concealed under the bottom of the pot, when the dosing system is in an operational state. The accommodation of components of the drive mechanism in the central pot section is conducive to a low overall height of the dosing system. In particular, the inner circumference of the pot shell can be used to provide a toothing with which a drive pinion of the drive mechanism arranged in the central pot section is in meshing engagement.

Yet another aspect of the invention provides a dosing system for a domestic dishwasher, comprising: a rotor which is or can be arranged in a magazine chamber so as to be rotatable about a rotor axis, the rotor having a plurality of storage compartments distributed in the circumferential direction about the rotor axis, each for receiving one portion of a solid detergent forms; and a photoelectric sensor system which allows the detection of the presence of a portion of the solid cleaning agent in a storage compartment, the sensor system being set up to radiate a sensor light beam directed from radially inwards to radially outwards or vice versa into each of the storage compartments. Transillumination of the storage compartments with a light beam directed radially or at a comparatively small (acute) angle to the radial makes it possible to arrange light-emitting and/or light-receiving components radially inside and/or radially outside of the storage compartments, but within the axial height of the storage compartments. The sensors therefore do not have to take up any additional installation space. This is favorable in view of the space restrictions, which the door of a household dishwasher is regularly imposed in the direction of the door thickness.

Each of the storage compartments can be delimited radially on the inside by a wall piece of the rotor provided with a window opening, with the sensor system being set up to direct the sensor light beam through the window opening in each of the storage compartments.

A further aspect of the invention provides a household dishwasher with a washing compartment, a door attached to the washing compartment so that it can pivot about a horizontal door pivot axis close to the floor, for closing a washing chamber formed in the washing compartment, and a dosing system for a solid detergent arranged on the door. The dosing system includes: a magazine for storing the solid cleaning agent; a chute for gravitational conveyance of a portion of the solid cleaning agent taken from the magazine to an outlet opening; a locking element arranged to move back and forth in a translatory manner between a locking position and a release position, which in the unlocking position releases the chute for a portion of the solid cleaning agent to fall through to the outlet opening and in the locking position the chute at a locking point located downstream of a chute start to prevent it from falling through blocks a portion of the solid detergent to the outlet opening; an electrically controllable actuator for driving the blocking member; and a control unit which is set up to control the actuator in such a way that during a program run of a washing program of the dishwasher the blocking element is in the blocked position for most of the duration of the program run, but in free fall when a portion of the solid cleaning agent is removed from the magazine the removed portion is allowed in the chute from the beginning of the chute to the outlet opening.

In this aspect of the invention, the control unit ensures that the free fall of a portion of detergent dispensed from the magazine into the chute is not temporarily stopped by the blocking element because the blocking element is still in its blocking position. Instead, the control unit ensures that the blocking element is in its release position when a portion of cleaning agent removed from the magazine falls into the chute. The cleaning agent portion can thus fall through the entire chute in one go. For this purpose, the control unit is suitably programmed or otherwise configured such that it causes a timely transfer of the blocking element from the release position to the blocking position before a portion of cleaning agent released from the magazine into the chute reaches the location of the blocking element. As soon as the cleaning agent portion has passed the blocking element, the blocking element can immediately be moved back into its blocking position.

Yet another aspect of the invention provides a household dishwasher which comprises a washing compartment, a door which is attached to the washing compartment and can be pivoted about a horizontal door pivot axis close to the floor, for closing a washing chamber formed in the washing compartment, and a dosing system for a solid detergent which is arranged on the door . Here, the dosing system comprises: a magazine for storing the solid cleaning agent; a chute for gravitational conveyance of a portion of the solid cleaning agent taken from the magazine to an outlet opening; a locking element which is arranged to move back and forth in a translatory manner between a blocking position and a release position, which in the release position releases the chute for a portion of the solid cleaning agent to fall through to the outlet opening and in the blocking position closes the chute to prevent a portion of the solid cleaning agent from falling through the exit opening blocks; an electrically controllable actuator for driving the blocking member; and a control unit which is set up to control the actuator in such a way that the blocking element is moved from the blocking position to the release position in response to a received predefined operating command from an operator without starting a program run of a washing program of the dishwasher. This functionality of the control unit makes it possible to move the blocking element into its release position for cleaning purposes, so that a user can reach all areas of the chute with a cleaning object, e.g. a brush or a toothbrush.

According to yet another aspect of the invention, a dosing system for a domestic dishwasher is provided, comprising: a magazine for storing the solid detergent; a chute for gravitational conveyance of a portion of the solid cleaning agent taken from the magazine to an outlet opening; a locking element arranged to move back and forth in a translatory manner between a blocked position and a release position, which in the released position releases the chute for a portion of the solid cleaning agent to fall through to the outlet opening and, in the blocked position, releases the chute at a blocking point located downstream of the beginning of a chute to prevent it from falling through blocks a portion of the solid detergent to the exit port; and one towards the chute ordered, in particular photoelectric sensors, which is set up to examine a shaft area of the chute above the blocking point for the presence of a portion of the solid cleaning agent.

The sensor system makes it possible to interrogate the chute by sensor for the falling through of a portion of cleaning agent removed from the magazine and/or for the presence of a portion of cleaning agent that is present at the (blocked) blocking element. The functional reliability of the dosing system can thus be increased. The sensor system makes it possible to determine whether, during a dosing process, a cleaning agent portion has actually entered the chute and/or has passed through the chute. For example, the sensor system can work according to the functional principle of a light barrier. Mechanical sensors with a sensor arm projecting into the path of the cleaning agent in the chute are also conceivable as an alternative to a test light beam radiated into the chute.

A further aspect of the invention provides a household dishwasher, comprising: a rotor which is or can be arranged in a magazine chamber so as to be rotatable about a rotor axis, the rotor forming a plurality of storage compartments distributed in the circumferential direction about the rotor axis, each for receiving a portion of a solid detergent; a chute for gravity conveyance of a portion of the solid cleaning agent taken from one of the storage compartments to an outlet opening; and an in particular photoelectric sensor system, which allows the detection of the presence of a portion of the solid cleaning agent in one of the storage compartments and, independently of this, the detection of the presence of a portion of the solid cleaning agent in the chute. In this aspect of the invention, the sensor system is set up both to query at least one of the storage compartments for the presence of a cleaning agent portion and to monitor the chute for the penetration or falling through of a cleaning agent portion.

Insofar as the dosing system in the last-mentioned aspect of the invention comprises a locking element which can be moved back and forth in a translatory manner between a blocked position and a release position, which in the released position releases the chute for a portion of the solid cleaning agent to fall through to the outlet opening and in the blocked position opens the chute a blocking point located downstream of the beginning of a chute blocks a portion of the solid cleaning agent from falling through to the outlet opening, the sensor system is set up in certain embodiments to detect a chute area of the chute above the blocking point and/or a chute area of the chute below the blocking point for the presence of a portion of the solid cleaning agent to be examined.

The invention also provides a household dishwasher with a washing compartment, a door attached to the washing compartment so that it can pivot about a horizontal door pivot axis close to the floor, for closing a washing chamber formed in the washing compartment, and a dosing system for a solid detergent arranged on the door, the dosing system comprises a storage space for receiving a supply of the solid cleaning agent and defines a drop section leading to an outlet opening for a portion of the cleaning agent extracted from the supply. The exit opening allows the extracted portion to exit into the washing compartment. According to the invention, it is provided in such a dishwasher that the dosing system, spatially assigned to the outlet opening, comprises a movably arranged protective cover for selectively opening and blocking the outlet opening and an electrically controllable, in particular electromotive actuator, with which the protective cover is drive-coupled for its movement.

The one mentioned above DE 10 2014 115 512 A1 already discloses a protective cover for covering an outlet opening at the end of a fall section. The protective cover according to this publication is designed in the manner of a gravity pendulum and closes the outlet opening when the door is open and horizontally oriented. However, when the door is closed, the protective cover pivots under the action of gravity into an open position in which the outlet opening is uncovered. The outlet opening is thus uncovered for the entire duration of an operational run of the dishwasher and sprayed water can get through the outlet opening into the drop distance at any time during the operational run. In contrast, the change from a protective cover that reacts purely passively to gravity to an actively controllable protective cover allows the protective cover to be closed even during those operating phases in which water is sprayed in the washing container. This ensures increased protection of the cleaning agent stored in the storeroom (magazine) from being adversely affected by penetrating moisture.

In certain embodiments, in which the dosing system is arranged such that it can be moved back and forth, in particular in a translatory manner, between a blocked position and a release position comprises a blocking element which, in the release position, releases the fall path for an extracted portion of the cleaning agent to fall through to the outlet opening and, in the blocking position, blocks the fall path against cleaning agent falling through to the outlet opening, the blocking element is also drive-coupled to its movement with the actuator. In these embodiments, the blocking element and the protective cover are therefore drive-coupled to the same actuator. This allows synchronized actuation of the locking member and the protective cover; in addition, this simplifies the design effort, since only a single actuator (and possibly only a single reduction gear) has to be provided to actuate both components.

In certain embodiments, the actuator is controlled in such a way that during a program run of a washing program of the dishwasher, the protective cover is in a closed position blocking the outlet opening for most of the duration of the program run, but is opened under the condition that a predefined event occurs. A predefined event in this sense can be, for example, a dosing process, through which a cleaning agent portion is to be removed from the storage space and sent onto the drop section. As soon as the metered portion of cleaning agent has been dispensed into the washing chamber, the protective cover can be closed again. Overall, the time during which the protective cover uncovers the outlet opening while an operating program of the dishwasher is running can thus be reduced to a very short period of time, for example just a few seconds. This provides effective protection against the ingress of moisture into the fall section and the pantry.

According to a further aspect, the invention provides a domestic dishwasher with a washing compartment, a door attached to the washing compartment so that it can pivot about a horizontal door pivot axis close to the floor, for closing a washing chamber formed in the washing compartment, and a dosing system for a solid detergent arranged on the door. The dosing system comprises a storage space for receiving a supply of the solid cleaning agent and defines a drop section leading to an outlet opening for a portion of the cleaning agent extracted from the supply. According to this aspect, the outlet opening, which enables the extracted cleaning agent portion to exit into the washing compartment, is arranged eccentrically to a transverse center of the door when viewed along the door pivot axis. This is based on the assumption that, at least in some dishwashers, a jet of water hits the door approximately in the middle during the washing operation (seen in the middle in the transverse direction of the door). By arranging the outlet opening offset in the middle, the probability can be reduced that splash water undesirably penetrates into the dosing system via the outlet opening.

For example, when viewed along the door pivot axis, an opening center of the outlet opening can be offset by no less than 4 cm, or no less than 8 cm, or no less than 12 cm from the transverse center of the door.

In general, one goal is to be able to store as large a quantity of cleaning agent as possible in the dosing system so that the user only has to refill a magazine of the dosing system comparatively rarely. This also applies to an embodiment of the magazine as a ring magazine. If cuboid cleaning tablets are placed flat on their sides in a ring arrangement in the magazine (so that their narrow sides face each other), the total number of cleaning tablets that can be stored is comparatively small. On the other hand, a larger number of cleaning tablets can be stored in the ring magazine if a rotor of the ring magazine defines a plurality of tablet compartments distributed in the circumferential direction around a rotor axis and the cleaning tablets, which are designed as flat bodies with opposite flat sides and narrow sides connecting the flat sides, are longer in flat-sided top view and are wider than they are thick and at the same time longer than they are wide (e.g. in the case of a cuboid design), standing up on one of their longitudinal narrow sides and placed in one of the tablet compartments. In particular, the cleaning tablets can be placed in the tablet compartments in such a way that they are aligned essentially radially in an axial plan view of the ring magazine. With such a radial alignment, the flat sides of the cleaning tablets face one another in the circumferential direction. However, arranging the cleaning tablets in an axial top view of the ring magazine with an alignment oblique to the radial direction is not ruled out. The narrow-edged upright storage of the cleaning tablets in the ring magazine (when viewed in an axial plan view) enables a comparatively large number of cleaning tablets to be stored in both cases.

The invention also provides a tablet dosing system for installation in a household dishwasher, the tablet dosing system having a magazine for storing cleaning tablets in two stacks arranged next to one another and an extractor for extracting cleaning tablets from the stacks and dispensing them extracted cleaning tablets into a chute. The extractor has an extractor element, which is movably arranged relative to the magazine, for the individual operation of each of the stacks for the purpose of extracting a cleaning tablet from the relevant stack. According to the invention, the extractor organ is formed by a rotary body that is arranged to be rotatable about an axis of rotation, with the two stacks being arranged next to one another essentially along a plane orthogonal to the axis of rotation, and the rotary body having two extraction pockets, particularly unevenly distributed in the circumferential direction, which each prevent a cleaning tablet from falling into the Magazine are sized in the relevant extraction pocket.

For example, both extraction pockets can lie within a circumferential segment of the rotating body that extends over at most 220 degrees, or at most 200 degrees, or at most 180 degrees. The arrangement of the rotating body such that the direction of the juxtaposition of the stack of tablets is essentially parallel to the plane of rotation of the rotating body allows a comparatively small overall depth of the extractor in the direction of the axis of rotation of the rotating body. In this way, account can be taken of the generally limited installation space available in the door of the dishwasher in the direction of the door thickness.

As an alternative or in addition to the design of the extractor element as a rotary body, such a tablet dosing system can include a fan for introducing blown air into the magazine, with an impeller of the fan being arranged between the two stacks.

The invention also provides a tablet dosing system for installation in a household dishwasher, comprising a magazine for the orderly storage of cleaning tablets, a drop chute for gravity-driven discharge of a cleaning tablet extracted from the magazine to an outlet opening, and a blocking member arranged movably between a blocking position and a release position, which, in the release position, releases the chute for extracted cleaning tablets to fall through to the outlet opening and, in the blocking position, blocks the chute against cleaning tablets falling through to the outlet opening. The tablet dosing system is characterized by a fan for generating a blown air flow, the fan comprising an impeller seated in an impeller chamber and the impeller chamber being in blown air supply connection with the chute and/or with an extractor chamber, in which a movably arranged extractor element for extracting a cleaning tablet from the Magazine and delivery of the extracted cleaning tablet is included in the chute. Blown air generated by the blower can reach the chute and/or the extractor chamber via the blown air supply connection and prevent hot steam and/or spray water from penetrating into the magazine.

Finally, the invention also provides a domestic dishwasher, which comprises a washing compartment, a door attached to the washing compartment so that it can pivot about a horizontal pivot axis close to the floor, for closing a washing chamber formed in the washing compartment, and a dosing system for a solid detergent arranged on the door, wherein the door has an inner lining on the inside of the door facing the washing compartment when the door is closed. The dosing system comprises a storage space for receiving a supply of the solid cleaning agent and a chute for gravity-driven discharge of a portion of the solid cleaning agent taken from the supply to an outlet opening. Furthermore, the dosing system comprises a blower for introducing blown air into the storage space and/or into the chute, the blower comprising an impeller rotatably arranged in an impeller chamber and the impeller chamber being in blown air supply connection with the storage space and/or the chute. The impeller chamber is formed by a housing component which is placed on the rear of the inner lining and has one or more suction slots, which are open in particular towards the inner lining, for sucking air into the impeller chamber.

• 1 schematisch eine Haushalts-Geschirrspülmaschine gemäß einem Ausführungsbeispiel,
• 2 eine perspektivische Ansicht auf die Innenseite einer Tür einer Haushalts-Geschirrspülmaschine gemäß einem Ausführungsbeispiel,
• 3a ein zum Einbau in eine Tür einer Haushalts-Geschirrspülmaschine vorgesehenes Tablettendosiersystem gemäß einem Ausführungsbeispiel in einer Situation, in welcher eine von einem Ringmagazin des Tablettendosiersystems ausgegebene Reinigungstablette an einem Sperrschieber anliegt und auf Freigabe eines Fallschachts wartet,
• 3b das Tablettendosiersystem der 3a in einer Situation, in welcher der Sperrschieber den Fallschacht freigegeben hat und die Reinigungstablette durch den Fallschacht hindurchgefallen ist,
• 4 eine Perspektivansicht eines zur Verwendung in einem Ringmagazin geeigneten Rotors mit mehreren Tablettenfächern gemäß einem Ausführungsbeispiel,
• 5a eine Perspektivansicht eines Ausführungsbeispiels eines Tablettendosiersystems mit Ringmagazin in einer Situation bei geöffnetem Magazindeckel,
• 5b eine Schnittansicht des Tablettendosiersystems der 5a bei herausgenommenem Rotor des Ringmagazins,
• 5c eine Draufsicht auf das Tablettendosiersystem der 5a,
• 6a ein weiteres Ausführungsbeispiel eines Tablettendosiersystems mit Ringmagazin in einer Situation, in welcher ein Schutzdeckel des Tablettendosiersystems geöffnet ist,
• 6b das Tablettendosiersystem der 6a in einer Situation, in welcher der Schutzdeckel geschlossen ist,
• 7a bis 7d verschiedene Ansichten eines Tablettendosiersystems mit Ringmagazin gemäß einem weiteren Ausführungsbeispiel,
• 8 einen Ausschnitt eines Ringmagazins mit einem Federdrücker gemäß einem Ausführungsbeispiel,
• 9 ein Ringmagazin mit einem Elektromagnet-Drücker gemäß einem Ausführungsbeispiel,
• 10 eine teilweise aufgeschnittene Perspektivansicht eines an einer Tür einer Geschirrspülmaschine montierten Gebläses gemäß einem Ausführungsbeispiel,
• 11 ein Tablettendosiersystem mit Stapelmagazinen gemäß einem Ausführungsbeispiel, und
• 12 ein Tablettendosiersystem mit Stapelmagazinen gemäß einem weiteren Ausführungsbeispiel.

The invention is explained below with reference to the accompanying drawings. They represent:

• 1 schematically a domestic dishwasher according to an embodiment,
• 2 a perspective view of the inside of a door of a domestic dishwasher according to an embodiment,
• 3a a tablet dosing system provided for installation in a door of a domestic dishwasher according to an exemplary embodiment in a situation in which a cleaning tablet dispensed from a ring magazine of the tablet dosing system is in contact with a locking slide and is waiting for a chute to be released,
• 3b the tablet dosing system 3a in a situation in which the locking slide has released the chute and the cleaning tablet has fallen through the chute,
• 4 a perspective view of a rotor suitable for use in a ring magazine with several tablet compartments according to an embodiment,
• 5a a perspective view of an embodiment of a tablet dosing system with a ring magazine in a situation with the magazine cover open,
• 5b a sectional view of the tablet dosing system of FIG 5a with the rotor of the ring magazine removed,
• 5c a top view of the tablet dosing system of FIG 5a ,
• 6a a further exemplary embodiment of a tablet dosing system with a ring magazine in a situation in which a protective cover of the tablet dosing system is open,
• 6b the tablet dosing system 6a in a situation where the protective cover is closed,
• 7a until 7d different views of a tablet dosing system with a ring magazine according to a further embodiment,
• 8th a section of a ring magazine with a spring pusher according to an embodiment,
• 9 a ring magazine with an electromagnet pusher according to one embodiment,
• 10 a partially cut-away perspective view of a fan mounted on a door of a dishwasher according to an embodiment,
• 11 a tablet dosing system with stacking magazines according to an exemplary embodiment, and
• 12 a tablet dosing system with stacking magazines according to a further embodiment.

It will be on first 1 referred. The dishwasher shown there, provided for domestic use, is denoted generally by 10 . It comprises a machine body (rinsing tank) 12 in which a rinsing space 14 is formed. A door 16 is mounted on the machine body 12 and can be pivoted about a horizontal pivot axis 17 close to the ground. The door 16 can be between an in 1 fully open position shown, in which it is substantially horizontal with its door plane, and a closed position, in which it closes the washing compartment 14 to the outside and is substantially vertical. In a manner known per se, one or more crockery baskets and optionally a cutlery drawer can be inserted into the washing compartment 14 in order to accommodate the crockery items to be cleaned. A control unit 18 indicated by dashed lines is responsible for the operational control of the dishwasher 10 . In the example shown, the control unit 18 is built into the door 16 . It goes without saying that in other embodiments at least parts of the control unit 18 can be arranged on the machine body 12 .

The control unit 18 is not only responsible for controlling the washing operation and, if necessary, a drying operation of the dishwasher 10, but also for controlling a dosing system 20, by means of which a portion can be automatically removed from a supply of a solid cleaning agent and dispensed into the washing compartment 14 . In the further explanations it is assumed that the solid cleaning agent is in tablet form, i.e. is formed by cleaning tablets which are produced with a defined, e.g. approximately cuboid shape. Accordingly, the dosing system 20 is also referred to below as a tablet dosing system.

In the example shown, the 1 the tablet dosing system 20 is arranged on the door 16. The door 16 has an interior trim panel 22 which is arranged on the inside of the door 16 facing the washing compartment 14 when the door 16 is closed and is typically made of sheet metal material. At least parts of the tablet dosing system 20 can be placed on the interior trim panel 22 on the outside. Alternatively or additionally, at least portions of the pill dosing system 20 may be hidden behind the interior trim panel 22 . Alternatively or additionally, the interior trim panel 22 can contain one or more recesses into which at least parts of the tablet dosing system 20 can be inserted.

In the other figures, elements that are the same or have the same effect are each provided with the same reference symbols, with a different lower-case letter being appended to the reference symbols in order to distinguish between different exemplary embodiments. Unless otherwise stated below, reference is made to the statements relating to those figures in relation to such identically numbered elements in connection with which the relevant elements are explained for the first time.

At the in 2 The exemplary embodiment shown has the tablet dosing system 20a on a cover 24a, which in the example shown is designed as a screw cover, but alternatively can also be designed as a hinged or pivoting cover or as a sliding cover. Although in 2 not shown separately, may differ At least part of a magazine of the tablet dosing system 20a is located below the cover 24a, in which cleaning tablets can be stored. A user can thus gain access to the tablet magazine by opening the cover 24a. The access can in particular be designed in such a way that the user can refill the tablet magazine through the access and/or remove a refillable magazine component.

The cover 24a can be made transparent at least in one or more cover areas in order to enable a user to visually check the fill level of the tablet magazine without having to remove the cover 24a for this purpose.

The tablet dosing system 20a has in the embodiment of 2 also has a scoop 26a, which covers an outlet opening, which is at the lower end of an in 2 not shown chute (fall channel or fall path) through which a cleaning tablet removed from the tablet magazine can fall into the washing compartment of the dishwasher. One recognizes in 2 that the scoop 26a is eccentrically offset from an imaginary center line M, which runs in the middle of the door 16a from the top edge of the door to the bottom edge of the door. The door center here means the center seen along the pivot axis 17a, ie in the transverse direction of the door 16a. In the example shown, the tablet dosing system 20a is located entirely beyond the transverse center of the door 16a. The eccentric offset of the scoop 26a and the exit opening of the chute hidden beneath it in relation to the transverse center of the door can guarantee that spray water which hits the door 16a in the region of the transverse center of the door cannot penetrate through the outlet opening into the chute. If it is to be expected that splash water will hit the door 16a predominantly in the area of the transverse center of the door, the probability of moisture penetrating the drop chute and the tablet magazine can be reduced by the transversely offset arrangement of the tablet dosing system 20a. The size of the cross offset - in 2 denoted by d - can be, for example, at least 10 cm or more, for example up to 15 cm or even up to 20 cm, depending on the installation space that is present in the transverse direction of the door 16a. The distance d is in 2 from the center line M to an imaginary center point of the scoop 26a or the outlet opening of the chute hidden underneath.

In addition, in the embodiment of 2 a cover cap 28a is also shown on the inside of the door 16a, under which one or more filling accesses for various other additives required for the cleaning operation of the dishwasher, in particular liquid additives, such as a rinse aid, can be located.

It is now on the embodiment of 3a , 3b referred. The tablet dosing system 20b shown there comprises a ring magazine 30b which has a magazine housing 32b and a rotor 36b which can be rotated about a rotor axis 34b. The rotor 36b is inserted into a circular-outlined magazine chamber 37b formed by the magazine case 32b. The ring magazine 30b is one in the 3a , 3b not shown in detail rotor drive unit (generally: drive mechanism) assigned to the rotational drive of the rotor 36b about the rotor axis 34b. The rotor drive unit may include, for example, an electric motor as a source of driving power. The rotor 36b can be removable for cleaning purposes and can overlook the 2 be concealed behind the lid 24a so that by opening the lid 24a a user can gain direct access to the rotor 36b.

The rotor 36b defines a plurality of tablet compartments (generally: storage compartments) 38b, which are distributed in a ring arrangement around the rotor axis 34b. The tablet compartments 38b can also be referred to as supply cells, which is why the rotor 36b can also be referred to as a cellular wheel or as a distribution wheel. Adjacent tablet compartments 38b are each separated from one another by a partition structure 40b. In the situations like those in the 3a , 3b are shown, a cleaning tablet 42b is placed in each of the tablet compartments 38b. In the example shown, the cleaning tablets 42b have an approximately cuboid shape, being designed as a flat body with opposite flat sides 44b and with narrow sides 46b between the flat sides 44b. The cuboid shape of the cleaning tablets 42b means that they have two longer narrow sides 46b, which run in the longitudinal direction of the cuboid, and two shorter narrow sides 46b, which run in the direction of the width of the cuboid. The length and width of the cuboid cleaning tablets 42b are greater than the thickness of the cleaning tablets 42b measured between the flat sides 44b.

The tablet compartments 38b are in the example 3a , 3b embodied so narrowly that the cleaning tablets 42b each have to be inserted into the ring magazine 30b standing up on one of their narrow sides 46b. Standing up on the narrow side means that the cleaning tablets 42b face each other with their flat sides 44b in the circumferential direction and with one of their narrow sides 46b on an axially directed bearing surface 47b, which in the example shown is part of the rotor 36b is to lie down. Due to the small width of the tablet compartments 38b, the cleaning tablets 42b cannot be placed in them lying flat on their sides. In the example shown, the cleaning tablets 42b are placed in the tablet compartments 38b with one of their longer narrow sides 46b (ie longitudinal narrow sides) resting on them. In this way, the overall height of the ring magazine 30b can be kept small. The depth of the tablet compartments 38b measured in the axial direction of the rotor 36b is greater than the width of the cleaning tablets 42b; the partition structure 40b accordingly protrudes axially beyond the cleaning tablets 42b when the cleaning tablets 42b are inserted into the tablet compartments 38b standing up on their longitudinal narrow sides. The cleaning tablets 42b placed in the tablet compartments 38b are oriented essentially radially.

With the shown way of inserting the cleaning tablets 42b into the tablet compartments 38b, it is possible to accommodate a comparatively large number of cleaning tablets 42b in the ring magazine 30b. However, within the scope of the present disclosure, it is not ruled out in principle to dimension the tablet compartments 38b sufficiently wide in the circumferential direction of the rotor 36b so that the cleaning tablets 42b can be placed in them lying flat on their sides, as is shown for the purpose of illustration in 4 is shown. In this figure only the rotor 36c with its tablet compartments 38c is shown. In one of the tablet compartments 38c is a cleaning tablet 42c which, as in the one shown in FIGS 3a , 3b shown example is designed approximately cuboid, used flat side resting.

One recognizes in 4 that the rotor 36c is designed in the example shown in the manner of a disk rotor and has a disk part 48c, from which the partition structures 40c rise axially on one side of the disk. The disk part 48c forms an axial bearing surface for the cleaning tablets 42c; it is alternatively conceivable not to design the rotor 36c as a disc rotor, but to design it completely open axially in the region of the tablet compartments 38c, so that the cleaning tablets 42c rest axially on a chamber floor of the magazine chamber 37c.

The partition structures 40c are disposed radially outward of a central cup portion 50c of the rotor 36c. The central pot section 50c is delimited by a pot casing 52c running in the circumferential direction and a pot bottom 54c, which delimit a space like a pot in which components of a drive mechanism for the rotary drive of the rotor 36c can be accommodated in a space-saving manner. This pot interior is from the other axial side of the rotor 36c (ie from the in 4 facing away from the viewer, rear axial side) accessible.

Can be seen in 4 furthermore, that the pot casing 52c in the example shown not only overlaps the partition structures 40c axially, but even projects beyond them axially. The named components of the drive mechanism can therefore be accommodated in the dosing system approximately in the axial area of the cleaning tablets 42c inserted into the tablet compartments 38c. This ensures a low overall height of the dosing system.

It is now back to the embodiment according to 3a , 3b referred. The ring magazine 30b with the rotor 36b can be stowed under a magazine cover (e.g. the cover 24a of 2 ) so that the user can access the rotor 36b and tablet compartments 38b after removing the cover. The intended installation position of the ring magazine 30b is essentially parallel to the main plane of the door of the dishwasher (eg door 16a), ie the ring plane of the ring magazine 30b should lie essentially parallel to the door plane. Accordingly, when the door is closed, the rotor axis 34b is oriented essentially horizontally. When the door is closed, gravity therefore acts essentially along the ring plane of the ring magazine 30b.

The tablet compartments 38b are designed to be open radially outwards. If the rotor 36b is removed from the magazine chamber 37b, cleaning tablets 42b that are inserted into the tablet compartments 38b can therefore easily slip out of the rotor 36b radially outward. The rotor 36b itself does not contain any structures by which cleaning tablets 42b inserted into the tablet compartments 38b would be secured against slipping out radially outwards. When the rotor 36b is inserted into the magazine chamber 37b, it is enclosed by a chamber boundary wall 56b, which extends radially outward around the rotor 36b in the manner of an annular wall. The chamber delimiting wall 56b is part of the magazine housing 32b and delimits the magazine chamber 37b radially on the outside. In the example shown, the chamber boundary wall 56b 3a , 3b two openings formed. A first of these openings forms a metering opening 58b, which can also be referred to as an extraction opening, and which is located at the 6 o'clock position of the ring magazine 30b (when viewed from the front with the door standing vertically). The other opening forms a blown air supply opening 60b; it is located at the 12 o'clock position in the example shown, but can alternatively be located at another angular position of the magazine housing 32b, eg somewhere between the 9 o'clock position and the 3 o'clock position.

Through the dosing opening 58b, the magazine chamber 37b is connected to a drop chute 62b, which extends essentially vertically downwards from the magazine chamber 37b (in a front plan view of the vertical door) and a free drop of a cleaning tablet 42b driven solely by gravity of the magazine chamber 37b up to an outlet opening 64b located at the end of the chute 62b. The chute 62b is formed by a chute housing 66b which is fixedly connected to the magazine housing 32b; for example, the magazine housing 32b and the shaft housing 66b can be formed by a one-piece coherent housing component. At the exit opening 64b, the chute 62b opens out on the inside of the door to the area surrounding the door. When the door is closed, a cleaning tablet 42b falling out at the outlet opening 64b can therefore pass into the washing compartment of the dishwasher and be caught and dissolved by the washing water splashed or collected there. The outlet opening 64b is located when looking at the embodiment of FIG 2 in the area of the scoop 26a.

The chute 62b is assigned a locking slide 68b, which is linear between an in 3a blocking position shown and one in 3b shown release position is adjustable. To drive the locking slide 68b, the tablet dosing system 20b can, for example, have an electric motor actuator (in the 3a , 3b not shown in detail), which by a control unit, for example the control unit 18 of 1 , is controlled. In the locked position according to 3a In the release position according to FIG 3b the locking slide 68b is moved so far out of the chute 62b that it is possible for cleaning tablets 42b to fall through the chute 62b. One task of the locking slide 68b is to prevent splashed water and/or hot steam from rising through the chute 62b to the magazine chamber 37b. For this reason, the blocking slide 68b in its blocking position closes the chute 62b essentially over its entire chute cross section.

For dosing (i.e. extraction) of a cleaning tablet 42b, the rotor 36b is moved into a position in which a tablet compartment 38b filled with a cleaning tablet 42b is in the 6 o'clock position, i.e. radially opposite to the dosing opening 58b. The dosing opening 58b is sufficiently large to allow the cleaning tablet 42b stored in the relevant tablet compartment 38b to fall through the dosing opening 58b into the chute 52b. However, it cannot be ruled out that the cleaning tablet 42b does not immediately fall into the chute 62b, despite the precise alignment of the relevant tablet compartment 38b with respect to the dosing opening 58b. For example, it may be possible that the cleaning tablet 42b is not completely loose in its tablet compartment 38b. In order to remove any obstacles that can prevent the cleaning tablet 42b from immediately falling out of the tablet compartment 38b, a conceivable movement pattern for the rotor 36b can be for the relevant tablet compartment 38b to approach the dosing opening 58b in a first direction of rotation (e.g. clockwise) and partially exceed it of metering opening 58b in the same direction of rotation. Then, according to this movement pattern, the rotor 36b is moved back in the opposite direction of rotation (e.g. anti-clockwise) until the tablet compartment 38b in question is again precisely radially opposite the dosing opening 58b. If necessary, this return movement of the rotor 36b can go a little further, so that the tablet compartment 38b in question also exceeds the dosing opening 58b a little in the opposite direction of rotation. Overall, the movement pattern of the rotor 36b for emptying a tablet compartment 38b can thus include at least one back and forth movement of the rotor 36b in the area of the dosing opening 58b. Any blockages that prevent the cleaning tablet 42b located in the tablet compartment 38b from immediately falling out can be released by such a back and forth movement.

When emptying a tablet compartment 38b, as in 3a shown, the locking slide 68b assume its locked position. The cleaning tablet 42b that has fallen out of the tablet compartment 38b is then stopped in its fall by the blocking slide 68b and remains in front of the blocking slide 68b until the blocking slide 68b moves into its release position according to FIG 3b is moved. It is conceivable to throw a cleaning tablet 42b from the ring magazine 30b into the chute 62b only after the start of an operating program of the dishwasher. Alternatively, it is conceivable to throw a cleaning tablet 42b from the ring magazine 30b into the chute 62b before the start of an operating program of the dishwasher and to keep the cleaning tablet 42b ready there by means of the locking slide 68b until it is actually needed after the program has started. In order to release the cleaning tablet 42b extracted from the ring magazine 30b into the washing compartment of the dishwasher, the locking slide 68b then only has to be moved into its release position. For example, it is conceivable to eject a cleaning tablet 42b from the ring magazine 30b into the chute 62b at the end of an operating run of an operating program of the dishwasher and using the Keeping the locking slide 68b ready until the next time an operating program of the dishwasher is started.

An alternative dosing procedure provides that at the moment when a cleaning tablet 42b is ejected from the ring magazine 30b into the chute 62b, the locking slide 68b is already in its release position 3b located. The cleaning tablet 42b that has fallen into the chute 62b is then not stopped by the locking slide 68b, but can fall through the entire chute 62b to the outlet opening 64b in an uninterrupted, free fall. The locking slide 68b is opened, for example, only shortly before the cleaning tablet 42b is extracted from the ring magazine 30b, and the locking slide 68b is closed again as soon as the cleaning tablet 42b has passed through the chute 62b.

Are indicated schematically in the 3a , 3b Sensors 70b, 72b, which can monitor the chute 62b with regard to a cleaning tablet 42b falling through by sensors. For example, these sensors 70b, 72b each work in the manner of a light barrier, which is briefly interrupted when a cleaning tablet 42b falls through the test light beam of the relevant light barrier. In the example shown, the 3a , 3b the sensor 70b is arranged above the blocking point at which the blocking slide 68b can block the chute 62b; the sensor 72b is arranged below this blocking point. It is understood that it may be sufficient to provide only one of the sensors 70b, 72b (either the sensor 70b or the sensor 72b). This applies in particular when a cleaning tablet 42b extracted from the ring magazine is not to be stopped by the locking slide 68b in its free fall. So if the dosing system 20b is operated in such a way that a cleaning tablet 42b extracted from the ring magazine 30b falls through the entire chute 62b in one uninterrupted slide, it may be sufficient to provide a single light barrier (or generally a single sensor) in the area of the chute 62b. However, if the operation of the dosing system 20b is configured in such a way that a cleaning tablet 42b that has fallen into the chute 62b is first stopped by the locking slide 68b (according to the illustration in 3a ), it can be useful to provide a sensor both above and below the locking slide 68b. The sensor located above the blocking point, sensor 70b in the example shown, is then expediently positioned such that it can detect the presence of a cleaning tablet 42b when the cleaning tablet 42b is in contact with the closed blocking slide 68b.

The blown air supply opening 60b connects the magazine chamber 37b with an impeller chamber 74b, in which an impeller 76b of a blower, generally designated 78b, is seated. The impeller chamber 74b is formed by a fan housing 80b which is fixedly connected to the magazine housing 32b; for example, the fan housing 80b and the magazine housing 32b are made in one piece. The fan 78b is used to generate a blown air flow into the magazine chamber 37b. From the magazine chamber 37b, the introduced blown air passes through the dosing opening 58b into the chute 62b. The blown air counteracts the penetration of hot steam through the outlet opening 64b into the chute 62b and can develop a drying effect if moisture has penetrated into the dosing system 20b.

The fan 78b includes a in the 3a , 3b not shown drive unit for the rotary drive of the impeller 76b. To drive control of the fan 78b is used in the 3a , 3b likewise not shown control unit, for example the control unit 18 of 1 . This control unit controls the fan 78b in such a way that blown air is generated at least when the locking slide 68b is in its release position during a washing phase of the dishwasher 3b located. It can be advantageous to additionally drive the blower 78b at least during some of those operating phases of the dishwasher to generate blowing air in which the locking slide 68b is in its locking position according to FIG 3a located. Because even when the locking slide 68b is closed, the undesired penetration of hot steam through the chute 62b into the magazine chamber 37b and/or on a cover arranged above the ring magazine 30b (e.g. the cover 24a of the 2 ) past into the magazine chamber 37b cannot always be completely ruled out. It is possible that the blocking slide 68b does not seal the chute 62b perfectly in its blocking position. It may also be that the seal between the magazine housing 32b and a magazine cover placed thereon, such as the cover 24a of 2 , is not perfect. The presence of leaks must therefore usually be expected, through which hot steam and/or sprayed water can penetrate into the interior areas of the dosing system 20b and can impair the quality of the stored cleaning tablets 42b there. It can therefore be useful to also drive the fan 78b during phases in which the locking slide 68b is closed. For example, it is conceivable to run the fan 78b substantially continuously throughout the phase in which is sprayed in the washing chamber of the dishwasher when an operating program of the dishwasher is running.

It is now on the embodiment of 5a until 5c referred. This does not differ significantly from the embodiment of 3a , 3b . Can be seen in the 5a until 5c a slide housing 82d, which has a sliding channel for a linearly movable blocking slide (e.g. the blocking slide 68b of 3a , 3b ) forms, by means of which the chute 62d at a distance below the dosing opening 58d can be selectively blocked and released. The slider housing 82d can be integrally connected to the shaft housing 66d.

In addition, in 5a a cover 24d pivotably attached to the shaft housing 66d can be seen, by means of which the ring magazine 30d can be closed. By opening the lid 24d, the user can gain access to the magazine chamber 37d and the rotor 36d inserted therein. In particular, access can be designed such that the rotor 36d can be removed from the magazine chamber 37d and from the ring magazine 30d when the cover 24d is open, for example after loosening a fastening screw (not shown) which becomes accessible by opening the cover 24d. Accordingly, the rotor 36d can be built into the ring magazine 30d in a fixed but detachable manner, in particular in such a way that it cannot be removed with the bare hand alone without an auxiliary tool (eg screwdriver).

are shown in 5b also components of a drive mechanism 84d, which is used to drive the rotor 36d in rotation. The drive mechanism 84d uses, for example, an electric motor (not shown in detail) as a source of motive power and includes a gear train 86d with a reduction function to transmit the motive power of the source to the rotor 36d. In the example shown, the gearwheel train 86d includes an output pinion 88d, which is arranged in the central pot section 50d, concealed under the pot bottom 54d, and has teeth formed on the inner peripheral side of the pot casing 52d (in 5b not shown in detail) is in meshing engagement. With sufficient dimensioning of the pot section 50d, the entire toothed wheel train 86d can be accommodated together with the mentioned electric motor in the pot interior delimited by the central pot section 50d. The force-transmitting engagement of the output pinion 88d with the pot casing 52d on its inner circumference enables a small overall height of the ring magazine 30d.

When the cover 24d is opened, the user has access to all tablet compartments 38d of the ring magazine 30d. Accordingly, without having to turn the rotor 36d, the user can load all the tablet compartments 38d with one cleaning tablet 42d each when the cover 24d is opened. For this purpose, the rotor 36d can remain in the magazine chamber 37d; the rotor 36d need not be taken out of the magazine chamber 37d. The filling of the rotor 36d with cleaning tablets 42d can accordingly take place in a state in which the rotor 36d is in force-transmitting engagement with the drive mechanism 84d.

The embodiment of 6a , 6b differs from the embodiment of 5a until 5c essentially due to the additional provision of a protective cover 90e, which in the example shown is designed as a pivoting cover and is attached to the shaft housing 66e between an in 6a shown open position and one in 6b shown closed position is pivotally held. In the open position according to 6a the protective cover 90e releases the outlet opening 64e, so that the outlet opening 64e is released for cleaning tablets 42e to exit. In the closed position according to 6b the protective cover 90e is pivoted over the outlet opening 64e, so that the outlet opening 64e is blocked against the falling out of cleaning tablets 42e. The protective cover 90e prevents when it is in the closed position according to FIG 6b is located, the penetration of hot steam or splashing water into the chute formed inside the chute body 66e (into the 6a , 6b not shown in detail) already at the outlet opening 64e.

The dosing system 20e of 6a , 6b is equipped with a double lock to prevent steam and/or spray water from rising through the chute into the area of the ring magazine 30e. A first lock forms the protective cover 90e, a second lock forms the movably guided in the slide housing 82e, in the 6a , 6b Blocking slide 68e only indicated in dashed lines, which can shut off the chute at a blocking point between the upper and the lower end of the chute.

is drawn in 6a another schematically indicated actuator 92e, which is coupled to the locking slide 68e via a mechanical drive connection 94e and to the protective cover 90e via a mechanical drive connection 96e. The drive connections 94e, 96e include, for example, one or more gears, the actuator 92e is designed, for example, as an electric motor actuator. About the drive connections 94e, 96e can the protective cover 90e and the locking slide 68e are supplied with driving power from a single, ie common, source. In particular, the actuator 92e is controlled in such a way and the drive connections 94e, 96e are designed in such a way that the locking slide 68e and the protective cover 90e open and close in a synchronized manner when the actuator 92e is actuated. So if the locking slide 68e from the release position according to 6a into the locked position according to 6b is moved, at the same time the protective cover 90e is pivoted out of the open position according to FIG 6a to the closed position according to 6b , and vice versa. The actuator 92e is controlled by a suitable control unit, for example the control unit 18 of FIG 1 .

It is now on the embodiment of 7a until 7d referred. while showing 7a 12 is a perspective view of ring magazine 30f as seen by a user when opening a magazine cover (e.g., cover 24a of FIG 2 or the lid 24d of 5a ) has opened. 7b shows a view similar 7a , but with the pot bottom 54f of the central pot section 50f of the rotor 36f being removed, so that a view into the interior of the central pot section 50f is made possible. 7c shows a section through the ring magazine 30f, and 7d shows a partially sectioned overall view of the ring magazine 30f of FIG 7a until 7c equipped tablet dosing system 20f, with a tablet compartment 38f provided next for emptying being in a test position.

It can be seen that in the embodiment of 7a until 7d a window opening 98f is formed in the pot casing 52f of the rotor 36f in the region of each of the tablet compartments 38f. Arranged stationary relative to the magazine housing 32f, the ring magazine 30f also comprises a photoelectric sensor component 100f ( 7d ), which implements, for example, a light barrier or a part thereof and serves to detect the presence or absence of a cleaning tablet in one of the tablet compartments 38f. The sensor component 100f is arranged in such a way that it can examine a tablet compartment 38f, which is provided next for emptying, in a test position which is angularly offset relative to the dosing position, for the presence or absence of a cleaning tablet. The test position is therefore angularly offset from the 6 o'clock position; in the example shown 7d the test position corresponds approximately to the 5:15 position. The test position corresponds to such an angular position in which the tablet compartment 38f in question is not yet completely opposite the dosing opening 58f, so that in the test position a cleaning tablet present in the tablet compartment 38f in question cannot yet fall out of the tablet compartment 38f into the chute 62f. In the example shown, the test position corresponds to an angular position in which the tablet compartment 38f in question lies essentially completely outside the extent of the dosing opening 58f. At the same time, the test position is sufficiently close to the dosing position to ensure that the tablet compartment 38f in question is the next tablet compartment to reach the dosing position when the rotor 36f rotates (ie no other tablet compartment 38f should reach the dosing position beforehand).

In this way, before a tablet compartment 38f is moved radially opposite to the dosing opening 58f, the sensor component 100f can be used to check whether there is a cleaning tablet in the relevant tablet compartment 38f. Provides the magazine control (formed, for example, by the control unit 18 of 1 ) establishes that the tablet compartment 38f in question is empty, it can, for example, output a visual and/or acoustic message, which prompts the user to fill up the ring magazine 30f with new cleaning tablets. Other predefined control actions are of course also conceivable. In addition, after one of the tablet compartments 38f has been moved radially opposite to the dosing opening 58f, the magazine control can check whether the tablet compartment 38f in question has actually been emptied. For this purpose, the magazine controller can cause the rotor 36f to move back into a rotational position in which the tablet compartment 38f in question is again in the checking position, so that the sensor component 100f can examine the tablet compartment 38f in question again. If the magazine controller now establishes that the relevant tablet compartment 38f is empty, it knows that the cleaning tablet previously located therein has been properly emptied into the chute 62f.

The window openings 98f on the pot casing 52f of the rotor 36f enable the sensor component 100f to figuratively speaking “look through” into the tablet compartments 38f. For this purpose, the sensor component 100f can comprise a light-emitting diode, for example, which emits a sensor light beam 101f ( 7d ) emits. The sensor light beam 101f passes through the window opening 98f of the relevant tablet compartment 38f (when this is in the test position) and either hits a cleaning tablet, if there is one in the tablet compartment 38f, or passes through the entire tablet compartment 38f radially outwards to the chamber boundary wall 56f . There, according to certain embodiments in the chamber boundary wall 56f in substantially radial opposite to the Sensor component 100f sit a non-illustrated photodetector (eg photodiode or phototransistor). According to other embodiments, such a photodetector can be contained in the sensor component 100f, in which case the light barrier works according to the reflection principle and makes use of a different degree of reflection, depending on whether the sensor light beam 101f hits a cleaning tablet or the chamber boundary wall 56f.

The two embodiments of 8th and 9 differ from the previous embodiments by the presence of a pusher which can impart a pulse-like impact in the direction of fall (ie in the direction of gravity) to a cleaning tablet located in a tablet compartment in the dosing position (ie in radial opposition to the dosing opening). Such a pressure impulse can support the cleaning tablet falling out of the relevant tablet compartment into the chute, for example if sticking prevents the cleaning tablet from automatically falling out of the tablet compartment.

In the embodiment of 8th the mentioned pusher is designed as a spring pusher 102g, which generates the desired pressing impulse from its own spring tension. In the example shown, the spring presser 102g is formed by a spring clip 104g, which forms a spring-elastically deflectable presser nose 106g. The spring clip 104g can be formed by a metal strip bent into a desired shape by bending. When one of the tablet compartments 38g is in the dosing position (i.e. radially opposite to the dosing opening at the entrance of the chute), the pusher nose 106g protrudes a little through a window opening 107g formed in the cup casing 52g of the rotor 36g into the relevant tablet compartment 38g in. Each of the tablet compartments 38g of the rotor 36g is designed with such a window opening 107g. Looking at the embodiment of 7a until 7d the local window openings 98f as the window openings 107g of 8th to serve.

When the rotor 36g rotates, the opening edge of the relevant window opening 107g presses the pusher lug 106g radially inwards, so that the pot casing 52g can slide past the pusher lug 106g until the next one of the window openings 107g reaches the area of the pusher lug 106g. Due to its own spring tension, the pusher lug 106g then snaps into this next window opening 107g and strikes a cleaning tablet located in the associated tablet compartment 38g. This is actively pushed into the chute.

In the embodiment of 9 Instead of a spring pusher, an electromagnet pusher 108h is provided, which has an electromagnet actuator 110h and a pusher head 112h that can be advanced in pulses by energizing the electromagnet actuator 110h. The pusher head 112h has the same function as the pusher nose 106g of the spring pusher 102g 8th ; when the electromagnet actuator 110h is excited, the pusher head 112h moves through the window opening 98h of the tablet compartment 38h that is currently in the dosing position, ie radially opposite the chute, a little way into the relevant tablet compartment 38h. If there is a cleaning tablet in it and it has not yet fallen into the chute of its own accord, the pusher head 112h strikes the cleaning tablet and thereby initiates its fall into the chute.

10 shows a partially sectioned view of an exemplary embodiment of the fan 78i with the impeller 76i accommodated in the fan housing 80i. It can be seen that the blower housing 80i is placed on the rear of the door trim panel 22i of the door 16i (rear side means the side of the door trim panel 22i facing towards the interior of the door, ie away from the washing compartment). Air intake by impeller 76i is through intake slots 114i formed in fan housing 80i and open to interior trim panel 22i. By placing the blower housing 80i on the interior trim panel 22i, the ends of the intake slots 114i are accordingly closed. Such intake slots 114i can be provided along all four sides of the fan housing 114i, which is designed with a square outline in the example shown. As a result of the location of the intake slots 114i close to the panel, air is sucked in close to the interior trim panel 22i. Air flows essentially along the interior trim panel 22i through the intake slots 114i into the impeller chamber 74i and is pressed by the impeller 76i into the magazine chamber of the ring magazine and adjacent parts of the metering system.

In the embodiment of 11 the tablet dosing system 20k does not include a ring magazine, but rather a stack magazine 116k with two magazine shafts 118k, each of which allows the storage of a plurality of example cuboid cleaning tablets 42k shown in a tablet stack. The two magazine shafts 118k run at a distance from one another over at least part of their shaft length, with that between the two magazine shafts 118k in front available free space for accommodating the fan 78k, more precisely for accommodating the fan housing 80k of the fan 78k, which accommodates the impeller 76k. In this way, both magazine shafts 118k can be uniformly supplied with blown air by the blower 78k. The blown air is blown directly into the shaft spaces of the magazine shafts 118k by the blower 78k.

For the individual operation of the two stacks of tablets, i.e. for the individual removal of one cleaning tablet 42k each from a selected stack of tablets, the tablet dosing system 20k comprises an extractor slide 120k, which can be linearly adjusted between different positions by means of a slide drive unit, for example an electric motor, not shown in detail, in which it can be used for receiving a cleaning tablet 42k from one of the stacks of tablets (as shown in 11 ) and is ready to release the picked-up cleaning tablet 42k into the chute from which in 11 only its shaft housing 66k can be seen. Further details on the construction and function of the extractor slide 120k can be found at the DE 10 2019 009 054 A1 and there in particular the explanations for the embodiment of 7 until 10 be removed. The content of the named DE document is hereby included in its entirety by express reference.

are shown in 11 further fans 78'k and 78"k, which are arranged at a different point of the dosing system 20k than the fan 78k and illustrate alternative or additional arrangement positions for such fans. The fan 78'k is in direct blowing air supply connection with the drop chute within the chute housing 66k, the blower 78"k is directly connected to the blown air supply connection with the slide chamber in which the extractor slide 120k is accommodated so that it can be slid. It goes without saying that not all three fans 78k, 78'k, 78"k have to be provided. If one of the three fans mentioned is sufficient to ensure that blown air flows through the magazine shafts 118k, the drop chute and the slide chamber, the other fans can be omitted.

In the embodiment of 12 includes the tablet dosing system 201 in turn a stacking magazine 1161 with two magazine shafts 1181, as in the embodiment of 11 be served by a common extractor organ. This extractor organ is in the case of the embodiment 12 embodied as a rotary extractor 1221 which is accommodated in an extractor housing 1261 so as to be rotatable about an axis of rotation 1241 . In the installation situation of the tablet dosing system 201, the axis of rotation 1241 is essentially orthogonal to the main plane of the door of the dishwasher; the two magazine shafts 1181 are built into the door in such a way that the stacks of tablets formed by the cleaning tablets 421 in the magazine shafts 1181 are arranged next to one another along a plane orthogonal to the axis of rotation 1241 .

The rotary extractor 1241 has two extraction pockets 1281, each dimensioned to hold a cleaning tablet 421. As in 12 clearly visible, the two extraction pockets 1281 are unevenly distributed in the circumferential direction of the rotary extractor 1221, ie they are not diametrically opposed to one another. Instead, both extraction pockets 1281 are formed within a 180° segment of the rotary extractor 1221 in the example shown. During operation, the rotary extractor 1221 can be controlled in such a way that, for example, it serves one of the stacks of tablets with one of the extraction pockets 1281 (i.e. a cleaning tablet 421 is extracted from the stack of tablets in question), then it is rotated into a position in which the cleaning tablet 421 received can be removed from the stack in question extraction pocket 1281 can fall into the chute 621 and then, by rotating the rotary extractor 1221 slightly further or backwards, the other of the two extraction pockets 1281 is brought under the other stack of tablets, so that a cleaning tablet can now fall from the other stack of tablets into the rotary extractor 1221. By repeatedly changing the direction of rotation of the rotary extractor 1221, each of the stacks of tablets can be served alternately, with the extraction pockets 1281 always being used for the same stack of tablets.

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 102014115512 A1 [0003, 0036]
• WO 2009/022223 A1 [0003, 0005]
• CN 111743495A [0003, 0005]
• DE 102019009054 A1 [0003, 0004, 0090]

Claims (30)

Household dishwasher with a washing compartment, a door attached to the washing compartment so as to be pivotable about a horizontal door pivot axis close to the floor, for closing a washing chamber formed in the washing compartment, and a dosing system for a solid detergent arranged on the door, the dosing system comprising: - a rotor which is arranged in a magazine chamber so as to be rotatable about a rotor axis and delimits a plurality of storage compartments which are distributed in the circumferential direction about the rotor axis and are open radially outwards for receiving one portion of a solid cleaning agent each, - A dosing opening in a boundary wall of the magazine chamber, wherein by rotating the rotor each of the storage compartments can be brought individually one after the other radially opposite to the dosing opening in order to empty the relevant storage compartment through the dosing opening, and - a drop chute connected to the magazine chamber through the metering opening, wherein the rotor is arranged with its plane of rotation substantially parallel to a main plane of the door and the metering opening is arranged under the rotor such that when the door is closed and one of the storage compartments is moved in radially opposite to the dosing opening, it is possible for a portion of the solid cleaning agent stored in the relevant storage compartment to fall out, caused solely by gravity, from the relevant storage compartment through the dosing opening into the chute. Household dishwasher after claim 1 , wherein the chute defines a fall section that extends from the dosing opening in particular essentially in a straight line down to an outlet opening for the free fall of a portion of the solid cleaning agent in the chute, the chute opening out at the outlet opening from the door to the washing compartment. Household dishwasher after claim 2 , wherein the chute is arranged immovably relative to the metering opening. Household dishwasher according to any of Claims 1 until 3 , comprising a drive mechanism for the reversible rotary drive of the rotor and a control unit, which is set up to control the drive mechanism with changing direction of rotation of the rotor. Household dishwasher after claim 4 , wherein the control unit is set up to control the drive mechanism in such a way that, in order to empty one of the storage compartments, the storage compartment in question is moved back and forth at least once and, in particular, is moved at least once at least partially over the dosing opening and then back to radially opposite the dosing opening. Household dishwasher after claim 4 or 5 , wherein the dosing system comprises a sensor system which allows the detection of the presence of a portion of the solid cleaning agent in a storage compartment before the storage compartment in question is moved into an emptying position relative to the dosing opening, the control unit being set up to control the drive mechanism in such a way that after moving one of the storage compartments into the emptying position, the relevant storage compartment is moved back into the detection area of the sensor system. Household dishwasher according to any of Claims 1 until 6 , comprising a drive mechanism for the rotary drive of the rotor, a control unit for controlling the drive mechanism and a sensor system coupled to the control unit, which allows the detection of the presence of a portion of the solid cleaning agent in a storage compartment, wherein the control unit is set up to, upon detection of the A portion of the solid cleaning agent remaining in one of the storage compartments after at least one movement of this storage compartment into an emptying position relative to the dosing opening to control the drive mechanism for moving another of the storage compartments into the emptying position. Household dishwasher after claim 7 , wherein the control unit is set up to bring about the output of an audible and/or visual indication for an operator when it detects that a portion of the solid cleaning agent remains in one of the storage compartments. Household dishwasher according to any of Claims 1 until 8th , wherein the dosing system further comprises: - a blower for generating a blown air flow into the magazine chamber and/or into the chute, - a locking member arranged to move back and forth between a locking position and a release position, in particular translationally, which in the release position closes the chute for a Falling through releases a portion of the solid cleaning agent to the outlet opening and in the locked position the chute against falling through a portion of the solid cleaning agent to the outlet opening, and - a control unit for the blower, the control unit being set up to control the blower at least during a phase in which the blocking member is in the release position for blowing air generation. Household dishwasher according to any of Claims 1 until 9 , wherein the dosing system comprises a pusher to push a stored in one of the storage compartments portion of the solid detergent radially outwards in the direction of fall, wherein the pusher is designed as a spring pusher or as an electromagnetically actuated pusher. Household dishwasher according to any of Claims 1 until 10 , wherein the dosing system further comprises an electrically controllable drive mechanism for driving the rotor in rotation and a magazine cover, which is held in particular in a pivotable manner, for closing an access to the magazine chamber, wherein the magazine cover can be removed from the magazine chamber without disconnecting a mechanical drive connection between the drive mechanism and the rotor, and when the magazine cover is removed each the storage compartment is accessible through the access for filling with a portion of the solid cleaning agent. Household dishwasher after claim 11 , The rotor being secured against axial removal from the magazine chamber by at least one fastening element, the solution of which requires an auxiliary tool. Dosing system for a household dishwasher, comprising: - a rotor which is or can be arranged in a magazine chamber so as to be rotatable about a rotor axis, the rotor having a central pot section delimited by a pot casing and a pot base and a plurality of storage compartments distributed radially outside of the central pot section in the circumferential direction and axially overlapping with the pot casing, each for receiving one Portion of a solid detergent forms, and - An electrically controllable drive mechanism for driving the rotor in rotation, with electromechanical and/or mechanical components of the drive mechanism, in particular an electric motor and/or a reduction gear, being accommodated at least partially concealed under the bottom of the pot inside the pot when the dosing system is in an operational state. Dosing system for a household dishwasher, comprising: - a rotor which is arranged or can be arranged in a magazine chamber so as to be rotatable about a rotor axis, the rotor forming a plurality of storage compartments distributed in the circumferential direction about the rotor axis for receiving one portion of a solid cleaning agent each, - A photoelectric sensor, which allows the detection of the presence of a portion of the solid cleaning agent in a storage compartment, the sensor being set up to radiate a radially inward to radially outward or vice versa directed sensor light beam into each of the storage compartments. dosing system Claim 14 , each of the storage compartments being delimited radially on the inside by a wall piece of the rotor provided with a window opening, the sensor system being set up to direct the sensor light beam through the window opening in each of the storage compartments. Household dishwasher with a washing compartment, a door attached to the washing compartment so as to be pivotable about a horizontal door pivot axis close to the floor, for closing a washing chamber formed in the washing compartment, and a dosing system for a solid detergent arranged on the door, the dosing system comprising: - a magazine for storing the solid cleaning agent, - a chute for gravity conveyance of a portion of the solid cleaning agent taken from the magazine to an outlet opening, - a blocking element arranged to move back and forth in a translatory manner between a blocking position and a release position, which in the release position releases the chute for a portion of the solid cleaning agent to fall through to the outlet opening and, in the blocking position, counteracts the chute at a blocking point located downstream of the start of a chute prevents a portion of the solid cleaning agent from falling through to the outlet opening, - An electrically controllable actuator for driving the locking member, and - A control unit, which is set up to control the actuator in such a way that during a program run of a washing program of the dishwasher, the blocking element is in the blocked position for most of the duration of the program run, but in free fall when a portion of the solid cleaning agent is removed from the magazine the removed portion is made possible in the chute from the beginning of the chute to the outlet opening. Household dishwasher with a wash tub, one on the wash tub by one a door which is pivotably mounted on a horizontal door pivot axis close to the floor for closing a washing chamber formed in the washing container and a dosing system for a solid cleaning agent which is arranged on the door, the dosing system comprising: - a magazine for storing the solid cleaning agent, - a chute for gravity conveyance of a a portion of the solid cleaning agent removed from the magazine to an outlet opening, - a blocking element which is arranged to move back and forth between a blocking position and a release position, in particular translationally, which in the release position releases the chute for a portion of the solid cleaning agent to fall through to the outlet opening and in which Blocking position blocks the chute from falling through a portion of the solid cleaning agent to the outlet opening, - an electrically controllable actuator for driving the blocking member, and - a control unit, which to control such ung of the actuator is set up so that in response to a received predetermined operating command from an operator without starting a program run of a washing program of the dishwasher, the blocking member is moved from the blocking position to the release position. Dosing system for a household dishwasher, comprising: - a magazine for storing the solid cleaning agent, - a chute for gravity conveyance of a portion of the solid cleaning agent taken from the magazine to an outlet opening, - a blocking element arranged to move back and forth in a translatory manner between a blocking position and a release position, which in the release position releases the chute for a portion of the solid cleaning agent to fall through to the outlet opening and, in the blocking position, counteracts the chute at a blocking point located downstream of the start of a chute prevents a portion of the solid cleaning agent from falling through to the outlet opening, - A chute associated, in particular photoelectric sensors, which is set up to examine a shaft area of the chute above the blocking point for the presence of a portion of the solid cleaning agent. Dosing system for a household dishwasher, comprising: - a rotor which is arranged or can be arranged in a magazine chamber so as to be rotatable about a rotor axis, the rotor forming a plurality of storage compartments distributed in the circumferential direction about the rotor axis for receiving one portion of a solid cleaning agent each, - a chute for gravity conveyance of a portion of the solid cleaning agent taken from one of the storage compartments to an outlet opening, and - A particular photoelectric sensor, which allows the detection of the presence of a portion of the solid cleaning agent in one of the storage compartments and independently of this, the detection of the presence of a portion of the solid cleaning agent in the chute. dosing system claim 19 , further comprising a locking element arranged to move back and forth in a translatory manner between a locking position and a release position, which in the unlocking position releases the chute for a portion of the solid cleaning agent to fall through to the outlet opening and, in the locking position, releases the chute at a point downstream from the beginning of a chute Blocking point prevents a portion of the solid cleaning agent from falling through to the outlet opening, the sensor system being set up to examine a shaft area of the chute above the blocking point and/or a shaft area of the chute below the blocking point for the presence of a portion of the solid cleaning agent. Household dishwasher with a washing compartment, a door attached to the washing compartment so as to be pivotable about a horizontal door pivot axis close to the floor, for closing a washing chamber formed in the washing compartment, and a dosing system for a solid detergent arranged on the door, the dosing system having a storage space for receiving a supply of the solid cleaning agent and defines a drop path leading to an outlet opening for a portion of the cleaning agent extracted from the supply, the outlet opening enabling the extracted portion to exit into the washing chamber, characterized in that the dosing system is spatially associated with the outlet opening and has a movable arranged protective cover for selectively releasing and blocking the outlet opening and an electrically controllable, in particular electromotive actuator, with which the protective cover is drive-coupled to its movement. Household dishwasher after Claim 21 , wherein the dosing system further comprises a locking element which is arranged to be movable back and forth in particular in a translatory manner between a locking position and a release position, which in the release position releases the fall path for an extracted portion of the cleaning agent to fall through to the outlet opening and in the blocking position blocks the drop section against cleaning agent falling through to the outlet opening, the blocking element also being drive-coupled to its movement with the actuator. Household dishwasher after Claim 21 or 22 , wherein the actuator is controlled such that during a program run of a washing program of the dishwasher, the protective cover is in a closed position blocking the outlet opening for most of the duration of the program run, but is opened under the condition of the occurrence of a predefined event. Household dishwasher according to the generic term des Claim 21 , characterized in that the outlet opening is arranged eccentrically to a door transverse center when viewed along the door pivot axis. Household dishwasher after Claim 24 , wherein when viewed along the door pivot axis, an opening center of the exit port is offset from the door transverse center by not less than 4 cm, or not less than 8 cm, or not less than 12 cm. A method for loading a domestic dishwasher with cleaning tablets, the dishwasher being equipped with a tablet dosing system which has a ring magazine with a rotor which is arranged such that it can rotate about a rotor axis, the rotor defining a plurality of tablet compartments which are distributed in the circumferential direction about the rotor axis, the cleaning tablets being Flat bodies are designed with opposite flat sides and narrow sides connecting the flat sides, the cleaning tablets being longer and wider than thick and at the same time longer than wide in plan view on the flat side, wherein in the process in each of a plurality of tablet compartments a cleaning tablet stands up on one of its longitudinal narrow sides is inserted, in particular in such a way that the cleaning tablets are each aligned essentially radially in an axial plan view of the ring magazine. Tablet dosing system for installation in a household dishwasher, comprising a magazine for storing cleaning tablets in two stacks arranged next to one another and an extractor for extracting cleaning tablets from the stacks and delivering extracted cleaning tablets into a chute, the extractor having an extractor organ arranged movably relative to the magazine for individually operating each of the stacks for the purpose of extracting a cleaning tablet from the relevant stack, characterized in that the extractor element is formed by a rotary body arranged to be rotatable about an axis of rotation, that the two stacks are arranged next to one another essentially along a plane orthogonal to the axis of rotation and that the rotary body has two extraction pockets distributed unevenly in the circumferential direction, each dimensioned for a cleaning tablet falling from the magazine into the relevant extraction pocket en are. tablet dosing system Claim 27 or its preamble, characterized by a fan for introducing blown air into the magazine, with an impeller of the fan being arranged between the two stacks. Tablet dosing system for installation in a household dishwasher, comprising a magazine for the orderly storage of cleaning tablets, a drop chute for the gravity-driven discharge of a cleaning tablet extracted from the magazine to an outlet opening and a locking element which is movably arranged between a blocking position and a release position and which in the release position closes the drop chute releases extracted cleaning tablets from falling through to the outlet opening and, in the blocking position, blocks the chute to prevent cleaning tablets from falling through to the outlet opening, characterized by a blower for generating a blown air flow, the blower comprising an impeller seated in an impeller chamber and the impeller chamber in blown air supply connection with the Drop chute and / or with an extractor chamber is in which a movably arranged extractor organ for extracting a cleaning tablet from the magazine un d Delivery of the extracted cleaning tablet is included in the chute. Household dishwasher with a washing compartment, a door attached to the washing compartment so as to be pivotable about a horizontal pivot axis close to the floor, for closing a washing chamber formed in the washing compartment, and a dosing system for a solid cleaning agent arranged on the door, the door having an inner lining on the door when the door is closed has the inside of the door facing the washing compartment, wherein the dosing system comprises a storage space for receiving a supply of the solid cleaning agent and a chute for gravity-driven discharge of a portion of the solid cleaning agent taken from the supply to an outlet opening, wherein the dosing system also has a blower for introducing blown air into includes the storage room and/or the chute, wherein the blower comprises an impeller rotatably arranged in an impeller chamber, wherein the impeller chamber is in blown air supply connection with the storage space and/or the chute, wherein the impeller chamber is formed by a housing component placed on the rear of the inner lining and the housing component is one or more, in particular for the inner lining has towards open intake slots for sucking air into the impeller chamber.

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