HOUSEHOLD DISHWASHER

Description

[0001] The present invention relates to a household dishwasher.

[0002] A dishwasher comprises a wash tub that holds the items to be cleaned. A door is pivotally mounted on the wash tub to close and open the wash tub. A dispenser may be provided on the door, which is configured to release a detergent during a wash cycle of the dishwasher.

[0003] US 2019 / 0104914 A1 describes a dispensing device for a dishwasher as mentioned above. The dispensing device comprises a receiving part for receiving a detergent and a lid that can be moved from an open state to a closed state and vice versa. After the receiving part has been filled with the detergent, the lid is moved from the open state to the closed state. To release the detergent, the lid opens during operation of the dishwasher.

[0004] AT 356 320 B discloses a dispenser for liquid detergent in dishwashers. It comprises a detergent reservoir with a connected ventilation line, the filler opening of which is covered by a flap, and an outlet channel leading from the detergent reservoir into the inner container of the household appliance, which outlet channel includes a dosing and dispensing device. In this case, the filler opening of the detergent reservoir is surrounded, in a known manner, on its side facing the inner container of the household appliance by a sleeve-shaped, protruding border, against which the cover flap is supported in the closed position with a seal interposed.This sleeve-shaped boundary is provided at one side edge of the filling opening with a ventilation channel formed by two overlapping wall sections of the boundary. This ventilation channel is arranged at least approximately vertically in the use position of the household appliance and is connected, on the one hand, at its lower end section to the inner container of the household appliance via an opening in the boundary, and, on the other hand, at its upper end section to the detergent container via a second opening. Against this background, one object of the present invention is to provide an improved household dishwasher.

[0005] Accordingly, a household dishwasher is proposed with a washing container that encloses a washing chamber of the household dishwasher, and with a dispensing device for adding a cleaning agent to the washing chamber. The dispensing device has a receiving part with a receiving area for receiving the cleaning agent, a lid for closing the receiving area, and a sealing arrangement arranged at least partially between the receiving part and the lid, wherein the sealing arrangement has a first sealing lip and a second sealing lip that differs from the first sealing lip, wherein the sealing arrangement completely surrounds the receiving area, wherein the first sealing lip only partially surrounds the receiving area, and wherein the second sealing lip also only partially surrounds the receiving area.

[0006] Due to the two different sealing lips, the sealing arrangement does not have a closed but rather an interrupted sealing contour, which allows for reliable function of the dispensing device with low operating forces on the lid and, at the same time, secure sealing.

[0007] The washing container is preferably cuboid or box-shaped. The washing chamber is located within the washing container. The washing chamber can be bordered or enclosed by the washing container and a door attached to the washing container. The washing container and, if applicable, the door thus determine the boundaries or spatial extent of the washing chamber. The addition device can also be referred to as an addition, release device, dosing device, detergent dispenser, detergent addition, addition chamber, dosing device, or dosing chamber.

[0008] The dispensing device is designed to receive and dispense the cleaning agent in tablet, powder, or liquid form. For example, the dispensing device can be manually filled with the cleaning agent. The dispensing device then automatically dispenses the cleaning agent during a washing cycle of the household dishwasher, allowing the cleaning agent to dissolve in the wash liquor and / or fresh water in the wash cabinet to clean the dishes placed in the wash cabinet.

[0009] The receiving part is preferably attached to the aforementioned door. However, the receiving part can also be attached directly to the washing container, for example to a side wall of the washing container. The receiving part is preferably a plastic component, in particular a plastic injection-molded component. The receiving area is molded onto the receiving part. The receiving area is preferably tub-shaped or trough-shaped and can accommodate the cleaning agent. With the help of the lid, the receiving area can be closed or opened and thus moved from an open state to a closed state and vice versa. For this purpose, the lid can be pivotally attached to the receiving part. However, the lid can also be slidably mounted on the receiving part in order to open and close the receiving area again.

[0010] The sealing arrangement is provided between the receiving part and the cover. However, the sealing arrangement can also protrude beyond the receiving part and / or the cover. In particular, the sealing arrangement rests against a flange of the receiving part that extends around the receiving area. The sealing arrangement can be firmly connected to the receiving part. The sealing arrangement is preferably made of an elastically deformable material. For example, silicone, rubber, polyurethane or a thermoplastic elastomer (TPE), in particular a thermoplastic polyurethane (TPU), can be used for the sealing arrangement. The material used for the sealing arrangement can be foamed. The material can be compressible or moldable.

[0011] The fact that the first sealing lip and the second sealing lip "differ" from one another means in particular in this case that the first sealing lip and the second sealing lip are two, in particular spatially, separate sections or regions of the sealing arrangement, which preferably do not touch one another and / or are not in contact with one another. However, this does not preclude the sealing lips from being connected to one another by means of a connecting section. The sealing arrangement thus does not have a closed sealing geometry or sealing contour, but rather an open or interrupted sealing geometry or sealing contour. A "sealing geometry" or "sealing contour" is understood here to mean a geometry or contour, i.e., an outline, of the sealing arrangement with which the sealing arrangement rests against the cover in the closed state.

[0012] The sealing arrangement itself, with its two sealing lips, completely surrounds the receiving area. This means that the receiving area is arranged within the sealing arrangement, which completely surrounds or encloses the receiving area. However, the first sealing lip and the second sealing lip each only or only partially surround the receiving area. "Only" or "only" in this context means that the respective sealing lip does not completely surround the receiving area. This means that the first sealing lip and the second sealing lip each have an open, rather than a closed, sealing geometry or sealing contour. However, the first sealing lip and the second sealing lip are arranged in such a way that together they form the sealing arrangement that completely surrounds the receiving area.

[0013] According to one embodiment, the first sealing lip and the second sealing lip overlap each other in an overlap region when viewed along a transverse direction, wherein the overlap region can in particular be arranged variably.

[0014] The transverse direction is particularly associated with the aforementioned door. The transverse direction can also be associated with the feeding device itself. The door is preferably associated with the transverse direction or x-direction, a vertical direction or y-direction, and a depth direction or z-direction. These directions are oriented perpendicular to one another. The directions form a coordinate system. The aforementioned coordinate system with the three directions can also be associated with the feeding device itself. The door preferably has a plate-shaped geometry that extends essentially along the transverse and vertical directions. "Essentially" here means that the geometric dimensions of the door in the transverse and vertical directions are many times greater than in the depth direction. Along the depth direction, the door has a thickness of a few centimeters, for example.Viewed along the depth direction, the dispensing device, in particular the receiving area with the lid, extends partially over the door and into the wash cabinet. Preferably, a first overlap area is provided in which the first sealing lip and the second sealing lip overlap, and a second overlap area is provided in which the first sealing lip and the second sealing lip also overlap. "Overlapping" or "covering" in this case means that the first sealing lip and the second sealing lip, viewed along the transverse direction, are placed one above the other or cover each other. The fact that the overlap area is "variably arrangeable" means, in this case, in particular that the overlap area, viewed along the vertical direction, can be placed or arranged as desired.

[0015] According to a further embodiment, the first sealing lip is wider than the second sealing lip when viewed along the transverse direction.

[0016] The first sealing lip can thus protrude beyond the second sealing lip on both sides when viewed in the transverse direction. As a result, the first sealing lip overlaps the second sealing lip when viewed in the vertical direction.

[0017] According to a further embodiment, the first sealing lip covers the second sealing lip in a roof-like manner when viewed along a vertical direction.

[0018] This ensures that any liquid impinging on the first sealing lip, particularly rinsing solution and / or fresh water, is diverted around the second sealing lip. This reliably prevents liquid from penetrating the receiving area. The vertical direction is assigned to the door or the dispensing device itself.

[0019] According to a further embodiment, the second sealing lip is arranged at least in sections within the first sealing lip when viewed along the transverse direction.

[0020] This means that the first sealing lip preferably surrounds or encloses the second sealing lip when viewed along the transverse direction. However, the second sealing lip may extend beyond or protrude from the second sealing lip.

[0021] According to a further embodiment, the first sealing lip has a base portion running along the transverse direction, a first leg portion running transversely to the base portion, and a second leg portion also running transversely to the base portion, wherein the second sealing lip has a base portion running along the transverse direction, a first leg portion running transversely to the base portion, and a second leg portion also running transversely to the base portion.

[0022] In this context, "transverse" means, in particular, any angle other than 0°. This means that the leg sections and their associated base section are not arranged parallel to one another. "Transverse" in this context particularly includes an angle between the base section and the respective leg section of 90° ± 20°, preferably 90° ± 10°, more preferably 90° ± 5°, more preferably 90° ± 3°, more preferably 90° ± 1°, more preferably exactly 90°. This means that "transverse" can also mean perpendicular or orthogonal. The terms "transverse" and "vertical" can therefore be interchanged. Viewed along the transverse direction, the base section of the first sealing lip is, in particular, wider than the base section of the second sealing lip. The leg sections preferably run along the vertical direction.

[0023] According to a further embodiment, the two leg sections of the second sealing lip are arranged between the two leg sections of the first sealing lip when viewed along the transverse direction.

[0024] This means, in particular, that the two leg sections of the second sealing lip are positioned closer together, viewed along the transverse direction, than the two leg sections of the first sealing lip. The two leg sections of the first sealing lip are thus arranged outside the two leg sections of the second sealing lip.

[0025] According to a further embodiment, the two first leg sections of the sealing lips overlap at least in sections when viewed along the transverse direction, wherein the two second leg sections of the sealing lips also overlap at least in sections when viewed along the transverse direction.

[0026] In particular, the two first leg sections of the sealing lips overlap in the aforementioned first overlap region. Accordingly, the two second leg sections of the sealing lips overlap in the second overlap region.

[0027] According to a further embodiment, a gap, in particular an air gap, is provided at least in sections between the first sealing lip and the second sealing lip.

[0028] This means, in particular, that a gap is provided between the first sealing lip and the second sealing lip. In particular, a gap is provided between the two first leg sections of the sealing lips, and a further gap is provided between the two second leg sections of the sealing lips. A gap is formed in each case, in particular, at the two overlapping areas.

[0029] According to a further embodiment, the first sealing lip, the second sealing lip and the gap together form a labyrinth seal of the sealing arrangement.

[0030] A "labyrinth seal" or "gap seal" is understood here to be a non-contact seal in which the sealing lips do not touch each other and are therefore not in contact with each other. The sealing effect of the labyrinth seal is based on an extension of the flow path of a fluid, for example, rinsing solution and / or fresh water or a liquid cleaning agent, through the gap to be sealed, thereby significantly increasing the flow resistance for the fluid entering or exiting the metering device. The extension of the flow path is achieved by the interlocking or intermeshing of the two sealing lips, as previously explained. This interlocking of the two sealing lips is realized in particular only at the previously mentioned overlapping areas.

[0031] According to a further embodiment, the first sealing lip has a U-shaped geometry, wherein the second sealing lip also has a U-shaped geometry, and wherein the first sealing lip and the second sealing lip are arranged such that the U-shaped geometries are arranged in opposite directions and at least partially inside each other.

[0032] The respective U-shaped geometry is formed by the base section and the leg sections arranged transversely to the base section. The two U-shaped geometries of the sealing lips are arranged such that one of the U-shaped geometries is reversed, so that the two U-shaped geometries are arranged at least partially within each other or interlaced. "Opposite" in this context means, in particular, that one of the U-shaped geometries is positioned inverted or upside down compared to the other U-shaped geometry.

[0033] According to a further embodiment, the lid is mounted on the receiving part in such a way that the adding device can be moved from a closed state to an open state and vice versa, wherein the sealing arrangement is pressed between the receiving part and the lid in the closed state.

[0034] The cover can, for example, be mounted on the receiving part so that it can pivot about a rotational axis. Alternatively, the cover can be mounted on the receiving part so that it can be linearly displaced. "Compressed" in this case means that the sealing arrangement is reversibly deformed in the closed state compared to the open state.

[0035] According to a further embodiment, the sealing arrangement has a connecting section, wherein the first sealing lip is connected to the second sealing lip in one piece, in particular in one piece, with the aid of the connecting section.

[0036] "Integral" or "single-piece" means that the sealing lips and the connecting section form a single component and are not composed of separate parts. "Integral" means, in particular, that the sealing arrangement is made entirely of the same material. The sealing arrangement can be a plastic component, in particular a plastic injection-molded component. The sealing arrangement can be molded onto the receiving part, for example, using a multi-component injection molding process.

[0037] According to a further embodiment, the household dishwasher comprises a door hinged to the washing container, wherein the adding device is mounted on the door facing the washing compartment.

[0038] For example, the door can be mounted on the washing tub so that it can pivot about a pivot axis. However, this is not mandatory. "Facing the washing compartment" in this case means, in particular, that the dispenser points toward the washing compartment or is located on the inside of the door.

[0039] According to a further embodiment, the adding device projects at least partially into the washing chamber when the door is closed.

[0040] In particular, the lid and a part of the receiving part protrude into the washing compartment. The receiving part can be accommodated at least in sections within the door. The dispensing device can be provided centrally on the door when viewed in the transverse direction. Alternatively, the dispensing device can also be arranged offset from a center of the door when viewed in the transverse direction. Viewed in the vertical direction, the dispensing device is preferably located in an upper third of the door. In particular, the dispensing device is arranged in a region of an upper edge of the door. The upper edge of the door is preferably facing away from the aforementioned pivot axis of the door. The pivot axis is provided in particular on a lower edge of the door.Further possible implementations of the household dishwasher also include combinations of features or embodiments described above or below with respect to the exemplary embodiments that are not explicitly mentioned. In this case, the person skilled in the art will also add individual aspects as improvements or additions to the respective basic form of the household dishwasher.

[0041] Further advantageous configurations and aspects of the household dishwasher are the subject of the dependent claims and the exemplary embodiments of the household dishwasher described below. The household dishwasher is explained in more detail below using preferred embodiments with reference to the accompanying figures. Fig. 1 shows a schematic perspective view of an embodiment of a household dishwasher; Fig. 2 shows a schematic plan view of an embodiment of a door for the household dishwasher according to Fig. 1 ; Fig. 3 shows a schematic plan view of an embodiment of a feeding device for the household dishwasher according to Fig. 1 ; and Fig. 4 shows a schematic partial sectional view of an embodiment of a sealing arrangement for the addition device according to the section line IV-IV of Fig. 3 .

[0042] In the figures, identical or functionally identical elements have been given the same reference numerals unless otherwise stated.

[0043] The Fig. 1 shows a schematic perspective view of an embodiment of a household dishwasher 1. The household dishwasher 1 comprises a washing container 2, which can be closed by a door 3, in particular in a watertight manner. For this purpose, a sealing device can be provided between the door 3 and the washing container 2. The washing container 2 is preferably cuboid-shaped. The washing container 2 can be arranged in a housing of the household dishwasher 1. The washing container 2 and the door 3 can form a washing chamber 4 for washing dishes.

[0044] Door 3 is in the Fig. 1 shown in its open position. The door 3 can be closed or opened by pivoting about a pivot axis 5 provided at a lower end of the door 3. With the help of the door 3, a loading opening 6 of the washing container 2 can be closed or opened. The washing container 2 has a base 7, a ceiling 8 arranged opposite the base 7, a rear wall 9 arranged opposite the closed door 3 and two side walls 10, 11 arranged opposite one another. The base 7, the ceiling 8, the rear wall 9 and the side walls 10, 11 can be made, for example, from a stainless steel sheet. Alternatively, the base 7 can, for example, be made from a plastic material.

[0045] The household dishwasher 1 further comprises at least one dishware receptacle 12 to 14. Preferably, several, for example three, dishware receptacles 12 to 14 can be provided, wherein the dishware receptacle 12 can be a lower dishware receptacle or a lower basket, the dishware receptacle 13 can be an upper dishware receptacle or an upper basket, and the dishware receptacle 14 can be a cutlery drawer. Fig. 1 As further shown, the dishware receptacles 12 to 14 are arranged one above the other in the washing container 2. Each dishware receptacle 12 to 14 can be selectively moved into or out of the washing container 2. In particular, each dishware receptacle 12 to 14 can be pushed or moved into the washing container 2 in an insertion direction E and pulled or moved out of the washing container 2 in an extension direction A opposite to the insertion direction E.

[0046] On the inside of the door 3, a dispensing device 15 is provided for receiving and dispensing a cleaning agent in tablet, powder, or liquid form. "Inside" here means facing the wash cabinet 4. The dispensing device 15 can be manually filled with the cleaning agent. The dispensing device 15 then automatically dispenses the cleaning agent during a wash cycle of the household dishwasher 1, so that the cleaning agent can dissolve in the wash liquor and / or fresh water in the wash cabinet 4 to clean the dishes placed in the wash cabinet 4.

[0047] The dispensing device 15 can also be referred to as a dispenser, release device, dosing device, detergent dispenser, detergent dispenser, dispensing chamber, dosing device, or dosing chamber. The aforementioned terms for the dispensing device 15 can be interchanged as desired. When the door 3 is closed (not shown), the dispensing device 15 protrudes at least partially into the wash cabinet 4. The dispensing device 15 can be placed at least partially within the door 3. The dispensing device 15 thus protrudes from the door 3.

[0048] The Fig. 2 shows a schematic plan view of an embodiment of a door 3 as previously explained. The door 3 is assigned a coordinate system with a first spatial direction, transverse direction or x-direction x, a second spatial direction, vertical direction or y-direction y, and a third spatial direction, depth direction or z-direction z. The directions x, y, z are oriented perpendicular to one another.

[0049] The feed device 15 is provided on an upper edge 16 of the door 3. The above-mentioned coordinate system with the directions x, y, z can also be assigned to the feed device 15. The pivot axis 5 is provided on a lower edge 17 of the door 3. The y-direction y is oriented from the lower edge 17 in the direction of the upper edge 16. The feed device 15 is arranged between the upper edge 16 and the lower edge 17, wherein the feed device 15 is preferably arranged with respect to the upper edge 16 and the lower edge 17 in a Fig. 2 upper part of door 3.

[0050] In the horizontal direction, i.e., viewed along the x-direction x, the feeding device 15 is positioned between a first side edge 18 and a second side edge 19 of the door 3. The feeding device 15 can be positioned centrally between the side edges 18, 19 or laterally offset from one of the side edges 18, 19. The x-direction x is oriented from the first side edge 18 toward the second side edge 19. In particular, the feeding device 15 is positioned in an upper third 20 of the door 3.

[0051] The dispensing device 15 comprises a movable lid 21 which can be opened and closed to introduce the cleaning agent. During the washing program of the household dishwasher 1, the lid 21 is automatically opened to release the cleaning agent held in the dispensing device 15 into the washing chamber 4. For this purpose, the lid 21 can be mounted rotatably about a rotation axis 22 in order to be able to Fig. 2 shown closed state Z1 into an open state and vice versa.

[0052] Alternatively, the cover 21 can also be displaceably mounted so that it can be moved back and forth laterally, i.e., between the side edges 18, 19, or vertically, i.e., between the upper edge 16 and the lower edge 17, for opening and closing. The cover 21 can be a plastic component, in particular an injection-molded plastic component.

[0053] The Fig. 3 shows a plan view of an embodiment of a previously mentioned adding device 15 in an opened state Z2 as previously mentioned. In the orientation of the Fig. 3 The upper edge 16 is placed above the feeding device 15 and the lower edge 17 is placed below the feeding device 15. In addition to the lid 21, the feeding device 15 comprises a receiving part 23. The receiving part 23 can be a plastic component, in particular a plastic injection-molded component.

[0054] The receiving part 23 can be recessed into the door 3, at least in part, or arranged within the door 3. The cover 21 can be pivotably mounted on the receiving part 23 about the rotation axis 22. Alternatively, as previously mentioned, the cover 21 can also be mounted on the receiving part 23 for laterally or vertically displacement.

[0055] The receiving part 23 comprises a tub-shaped or trough-shaped receiving area 24 in which a cleaning agent 25, in this case in tab form or tablet form, can be received. When the lid 21 is opened with the door 3 closed, the cleaning agent 25 falls out of the receiving area 24 into the washing chamber 4, where it is dissolved in the washing solution and / or fresh water. The receiving part 23 has a flange 26 surrounding the receiving area 24.

[0056] Furthermore, the receiving part 23 comprises an upper edge 27, which is assigned to the upper edge 16 of the door 3, and a lower edge 28, which is assigned to the lower edge 17 of the door 3. The rotation axis 22 can, as in the Fig. 3 shown, be provided on the upper edge 27.

[0057] However, the rotation axis 22 can also be provided on the lower edge 28. The receiving part 23 has a first side edge 29, which is associated with the first side edge 18 of the door 3, and a second side edge 30, which is associated with the second side edge 19 of the door 3.

[0058] The addition device 15 further comprises a sealing arrangement 31 for sealing the lid 21 relative to the receiving part 23. A partial sectional view of the sealing arrangement 31 according to the section line IV-IV of Fig. 3 is in the Fig. 4 shown.

[0059] The sealing arrangement 31 is made of a flexible material such as silicone, rubber, polyurethane, a thermoplastic elastomer (TPE), in particular a thermoplastic polyurethane (TPU). The material used for the sealing arrangement 31 can be foamed. The material can be compressible or pressable. The sealing arrangement 31 has a first sealing lip 32 and a second sealing lip 33. The sealing lips 32, 33 can be connected by means of a connecting section 34 ( Fig. 4 ) are connected to each other. The connecting section 34 can rest against the flange 26 or be connected to it.

[0060] The first sealing lip 32 differs from the second sealing lip 33. "Differentiate" in this case is to be understood to mean that the two sealing lips 32, 33 are two separate regions or sections of the sealing arrangement 31. This means that the first sealing lip 32 and the second sealing lip 33, in particular, do not touch or contact each other. The sealing lips 32, 33 are connected to each other exclusively by means of the connecting section 34. This results in an interrupted or open sealing geometry or sealing contour of the sealing arrangement 31.

[0061] The sealing arrangement 31 can be a one-piece component, in particular a one-piece component. "One-piece" or "single-piece" means that the sealing lips 32, 33 and the connecting section 34 form a common component and are not composed of different components. "One-piece" means that the sealing arrangement 31 is made entirely of the same material. The sealing arrangement 31 is a plastic component, in particular an injection-molded plastic component.

[0062] The sealing arrangement 31 can be injection-molded directly onto the receiving part 23, for example by means of a multi-component injection-mold process.

[0063] The first sealing lip 32 runs in the x-direction x along the upper edge 27 and extends partially in the y-direction y along the side edges 29, 30. The first sealing lip 32 therefore does not run completely around the receiving area 24 and does not completely enclose it either. The first sealing lip 32 therefore has a circumferentially open sealing geometry or sealing contour. The second sealing lip 33, on the other hand, runs in the x-direction x along the lower edge 28 and extends partially in the y-direction y along the side edges 29, 30. The second sealing lip 33 therefore also does not run completely around the receiving area 24 and does not enclose it either. The second sealing lip 33 therefore also has a circumferentially open sealing geometry or sealing contour.

[0064] The first sealing lip 32 and the second sealing lip 33 overlap in the region of the two side edges 29, 30, each in a first overlap region 35 and in a second overlap region 36 along the y-direction y. Viewed along the x-direction x, the second sealing lip 33 is arranged within the first sealing lip 32.

[0065] The first sealing lip 32 comprises a base section 37 running along the x-direction x and two leg sections 38, 39 provided at the ends of the base section 37, which are oriented transversely, in particular perpendicularly, to the base section 37 and run along the y-direction y. A first leg section 38 and a second leg section 39 are provided. The second sealing lip 33 likewise comprises a base section 40 running along the x-direction x and two leg sections 41, 42 provided at the ends of the base section 40, which are oriented transversely, in particular perpendicularly, to the base section 40 and run along the y-direction y. A first leg section 41 and a second leg section 42 are provided.

[0066] In the first overlap region 35, the first leg sections 38, 41 overlap each other. In the second overlap region 36, the second leg sections 39, 42 overlap each other. "Overlapping" means that the leg sections 38, 39, 41, 42 are arranged in pairs such that the leg sections 38, 39, 41, 42 overlap or cover each other when viewed along the x-direction.

[0067] The leg sections 41, 42 of the second sealing lip 33 are positioned between the leg sections 38, 39 of the first sealing lip 32, viewed along the x-direction. The first sealing lip 32 covers the second sealing lip 33 in a roof-like manner, viewed along the y-direction.

[0068] The entire sealing arrangement 31, with its two sealing lips 32, 33, extends completely around the receiving area 24 and thus completely encloses or delimits it. However, the sealing arrangement 31 is not closed all the way around, but is interrupted or open at the overlapping areas 35, 36. In contrast to the sealing arrangement 31, the two sealing lips 32, 33 themselves do not extend completely around the receiving area 24.

[0069] Between the leg sections 38, 41 and the leg sections 39, 42, in the area of the overlapping areas 35, 36, there is a cavity, slot or gap 43 ( Fig. 4 ), in particular an air gap, is provided which separates the first sealing lip 32 from the second sealing lip 33. Each pair of first leg sections 38, 41 and second leg sections 39, 42 is assigned such a gap 43.

[0070] The two sealing lips 32, 33, in particular the respective pairs on the first leg sections 38, 41 and on the second leg sections 39, 42, together with the gap 43, each form a labyrinth seal 44 of the sealing arrangement 31 at the overlapping areas 35, 36. A "labyrinth seal" or "gap seal" is understood here to mean a non-contact seal in which the sealing lips 32, 33 do not touch each other and are therefore not in contact with each other.

[0071] The sealing effect of the labyrinth seal 44 is based on an extension of the flow path of a fluid, for example, rinsing solution and / or fresh water or a liquid cleaning agent, through the gap 43 to be sealed, thereby significantly increasing the flow resistance for the fluid entering or exiting the metering device 15. The extension of the flow path is achieved by the interlocking or intermeshing of the two sealing lips 32, 33, as previously explained. This interlocking of the two sealing lips 32, 33 is realized only at the overlapping areas 35, 36.

[0072] With the help of the interrupted and flexible geometry of the sealing arrangement 31, the sealing function can be achieved with consistently low operating forces. The sealing arrangement 31 acts in the area of the upper edge 27 of the feed device 15 and at the side edges 29, 30 against the orientation of the Fig. 3rinsing solution and / or fresh water penetrating from above. In the area of the lower edge 28 and the side edges 29, 30, the sealing arrangement 31 acts to prevent leakage of a liquid cleaner (not shown) from the receiving area 24.

[0073] At the side edges 29, 30, the seal is additionally ensured by the design of the sealing lips 32, 33 in the form of the labyrinth seal 44. The sealing lips 32, 33 are pressed or compressed laterally against a sealing geometry (not shown). The sealing lips 32, 33 are designed to be flexible enough that they can be deformed without significant forces. In the closed state Z1, the sealing arrangement 31 is thus compressed between the receiving part 23 and the cover 21.

[0074] Advantageously, the use of the sealing arrangement 31, compared to a sealing arrangement without the previously explained sealing lips 32, 33, allows for greater compensation of component and manufacturing tolerances of the lid 21, the receiving part 23, and / or the sealing arrangement 31 while maintaining the same or reducing the operating forces. As a result, a better sealing function of the entire dispensing device 15 can be achieved, both against the ingress of liquid from the outside and against the loss of cleaning agent 25 from the receiving area 24.

[0075] In contrast, a leaky dispensing device can result in the cleaning agent 25 being activated earlier than desired, so that components of the cleaning agent 25 may already react and thus lose their effectiveness. If the cleaning agent 25 is already wetted in the receiving area 24 due to a leak, it tends to clump, which can lead to the lid 21 becoming blocked when it is opened. This is reliably prevented by the dispensing device 15, which has the sealing arrangement 31.

[0076] By appropriately positioning a ventilation opening on the dosing device 15, pre-dosing of a liquid detergent can be enabled. The position of the labyrinth seal 44 or the overlapping areas 35, 36 along the y-direction y also allows the volume of a pre-dosage or the remaining detergent quantity to be varied. Due to the flexibility of the sealing lips 32, 33, the risk of the sealing arrangement 31 sticking due to frictional forces is prevented. The use of the sealing arrangement 31 also opens up further degrees of freedom with regard to energy savings, which are not feasible with known dosing devices.

[0077] For example, a reduction in the post-wash time has previously led to an extension of the pre-rinse phase. This extension is not readily possible with a leaky dispensing device, since the cleaning agent 25 already reacts with the rinse liquor and / or fresh water and, in the worst case, can lead to a blockage of the lid 21. This disadvantage can also be remedied with the dispensing device 15, which has the sealing arrangement 31.

[0078] Although the present invention has been described using exemplary embodiments, it can be modified in many ways. Reference symbols used:

[0079] 1 Household dishwasher 2 Washing container 3 Door 4 Washing chamber 5 Pivot axis 6 Loading opening 7 Floor 8 Ceiling 9 Rear wall 10 Side wall 11 Side wall 12 Dishware receptacle 13 Dishware receptacle 14 Dishware receptacle 15 Adding device 16 Top edge 17 Bottom edge 18 Side edge 19 Side edge 20 Third 21 Lid 22 Pivot axis 23 Receptacle 24 Receptacle area 25 Cleaning agent 26 Flange 27 Top edge 28 Bottom edge 29 Side edge 30 Side edge 31 Sealing arrangement 32 Sealing lip 33 Sealing lip 34 Connecting section 35 Overlap area 36 Overlap area 37 Base section 38 Leg section 39 Leg section 40 Base section 41 Leg section 42Leg section 43Gap 44Labyrinth seal AExtraction direction EInsertion direction xx-direction / transverse direction yy-direction / vertical direction zz-direction / depth direction Z1 state Z2 state

Claims

1. Household dishwasher (1) having a dishwasher cavity (2), which encompasses a dishwasher interior (4) of the household dishwasher (1), and a dispensing facility (15) for dispensing a cleaning agent (25) into the dishwasher interior (4), wherein the dispensing facility (15) has a receiving part (23) having a receiving area (24) for receiving the cleaning agent (25), a cover (21) for sealing the receiving area (24) and a sealing arrangement (31) that is arranged at least in sections between the receiving part (23) and the cover (21), characterised in that the sealing arrangement (31) has a first sealing lip (32) and a second sealing lip (33) that is different from the first sealing lip (32), wherein the sealing arrangement (31) runs completely around the receiving area (24), wherein the first sealing lip (32) runs only partially around the receiving area (24), and wherein the second sealing lip (33) also runs only partially around the receiving area (24).

2. Household dishwasher according to claim 1, characterised in that the first sealing lip (32) and the second sealing lip (33) overlap each other in an overlap area (35, 36) when viewed in a transverse direction (x), wherein the overlap area (35, 36) can be arranged in particular in a variable manner.

3. Household dishwasher according to claim 2, characterised in that the first sealing lip (32) is wider than the second sealing lip (33) when viewed along the transverse direction (x).

4. Household dishwasher according to one of claims 1-3, characterised in that the first sealing lip (32) covers the second sealing lip (33) in a roof-shaped manner when viewed along the vertical direction (y).

5. Household dishwasher according to claim 2 or 3, characterised in that the second sealing lip (33) is arranged at least in sections within the first sealing lip (32) when viewed along the transverse direction (x).

6. Household dishwasher according to claim 5, characterised in that the first sealing lip (32) has a base section (37) that extends along the transverse direction (x), a first leg section (38), which extends transversely to the base section (37), and a second leg section (39), which also extends transversely to the base section (37), wherein the second sealing lip (33) has a base section (40) that extends along the transverse direction (x), a first leg section (41), which extends transversely to the base section (40), and a second leg section (42), which also extends transversely to the base section (40).

7. Household dishwasher according to claim 6, characterised in that the two leg sections (41, 42) of the second sealing lip (33) are arranged between the two leg sections (38, 39) of the first sealing lip (32) when viewed along the transverse direction (x).

8. Household dishwasher according to claim 6 or 7, characterised in that the two first leg sections (38, 41) of the sealing lips (32, 33) overlap at least in sections when viewed along the transverse direction (x), wherein the two second leg sections (39, 42) of the sealing lips (32, 33) also overlap at least in sections when viewed along the transverse direction (x).

9. Household dishwasher according to one of claims 1-8, characterised in that a gap (43), in particular an air gap, is provided at least in sections between the first sealing lip (32) and the second sealing lip (33).

10. Household dishwasher according to claim 9, characterised in that the first sealing lip (32), the second sealing lip (33) and the gap (43) together form a labyrinth seal (44) of the sealing arrangement (31).

11. Household dishwasher according to one of claims 1-10, characterised in that the first sealing lip (32) has a U-shaped geometry, wherein the second sealing lip (33) also has a U-shaped geometry, and wherein the first sealing lip (32) and the second sealing lip (33) are arranged in such a manner that the U-shaped geometries are arranged inversely and at least in sections one inside the other.

12. Household dishwasher according to one of claims 1-11, characterised in that the cover (21) is mounted on the receiving part (23) in such a manner that the dispensing facility (15) can be moved from a closed state (Z1) into an open state (Z2) and conversely, wherein the sealing arrangement (31) is compressed between the receiving part (23) and the cover (21) in the closed state (Z1).

13. Household dishwasher according to one of claims 1-12, characterised in that the sealing arrangement (31) has a connecting section (34), wherein the first sealing lip (32) is only connected to the second sealing lip (33) in one piece, in particular in one piece of material, with the aid of the connecting section (34).

14. Household dishwasher according to one of claims 1-13, characterised by a door (3) that is attached to the dishwasher cavity (2), wherein the dispensing facility (15) is attached to the door (3) facing the dishwasher interior (4).

15. Household dishwasher according to claim 14, characterised in that the dispensing facility (15) protrudes at least in part into the dishwasher interior (4) when the door (3) is in a closed state.