Household dishwasher with at least one air drying unit

Description

[0001] The present invention relates to a household dishwasher with a washing container for receiving dishes, glasses, cutlery or similar items to be washed, and with at least one loading unit for receiving items to be washed according to the preamble of claim 1.

[0002] A typical household dishwasher cycle goes through one or more liquid-filled partial wash cycles, such as a pre-rinse, a main wash, an intermediate rinse, and a final rinse. This is usually followed by a drying cycle. During each of these liquid-filled partial wash cycles, the wash liquid, also known as the wash liquor, is introduced into the wash tub via one or more liquid distribution devices. These devices can be, for example, rotating spray arms, a spray head, and / or a movable spray nozzle, such as a rotating spray head, within the wash tub.With its aid, washing fluid can preferably be introduced into the wash chamber in such a way that it directly or indirectly sprays the items held in loading units, for example, extendable dish racks and / or cutlery drawers. Water, optionally containing detergent and / or rinse aid, is preferably used as the washing fluid for each liquid-containing wash cycle. Preferably, fresh water from a domestic water supply, softened in particular by a water softener in the dishwasher, or process water stored in a reservoir of the dishwasher from the rinse cycle of the preceding wash program, can be used for the pre-rinse cycle. For the main wash cycle, fresh water softened by the water softener and containing detergent is preferably used.Softened fresh water is preferably used in the intermediate rinse cycle. For the final rinse cycle, softened fresh water, preferably obtained through a water softening system and mixed with rinse aid, is preferably used.

[0003] To ensure the dishes are as dry as possible at the end of each dishwashing cycle, various drying methods are used. These include, in particular, self-drying, condensation drying (especially using a heat exchanger on a side wall of the wash tub to cool it), drying through a door opening at the end of the drying cycle, sorption drying (e.g., with zeolite), etc. These methods primarily ensure that liquid droplets adhering to the dishes after the last liquid-filled rinse cycle of a dishwashing program are dried away. However, if wash water collects in an upward-facing depression during the liquid-filled rinse cycles of the respective dishwashing program, e.g.,If liquid remains pooled on the surface of a dish, such as a depression, groove, or other cavity, it is often too large to be removed by a conventional drying system. A typical example of such a depression is the concave bottom of an upside-down cup or glass. After the drying cycle, this remaining liquid can usually only be removed by manually tilting the dish and / or drying it with a dish towel, which is inconvenient and time-consuming.Furthermore, such puddles in recesses of dishware can lead to unsightly, stubborn deposits or watermarks after the drying cycle, as the remaining liquid may contain dirt particles, cleaning agents, rinse aids, limescale and / or other additives that can remain in the respective recess after the puddles have completely dried.

[0004] GB 1 530 734 A pertains solely to a drying hood located downstream of the outlet of a commercial dishwasher. The drying hood is mounted vertically above a table on which a dish rack containing wet dishes is placed after being removed from the dishwasher's wash chamber. Inside its upper surface, a fan driven by an electric motor is fixed in position, with electric heating elements located beneath it. To dry the dishes, the entire hood can be lowered over the dish rack into a drying position, where a skirt on its lower section covers the circumference of the

[0005] The dishwasher basket is sealed. Then the fan motor and the electric heating elements are switched on. The rotating fan draws outside air into the hood's interior through an opening in the ceiling wall and blows it vertically downwards. It is constantly the same stationary Airflow is generated.

[0006] The JP 2005 058552 A refers to a so-called drawer dishwasher. This dishwasher has a drawer-shaped wash box in its outer casing.

[0007] This unit contains dish racks above rotating spray nozzles during the wash cycle. The drawer-like wash box can be extended from the front of the housing for loading and unloading dishes. During a wash cycle, including the wash and dry phases, the drawer is retracted into the outer housing and held in a wash position. An electrically driven fan is permanently attached to the rear of the drawer-like wash box. This fan draws outside air into the drawer-like wash box during the drying phase of the wash cycle.

[0008] Furthermore, WO 2019 / 015967 A1 also reveals a household dishwasher with a washing container and associated fan wheels.

[0009] The invention is based on the problem of providing a household dishwasher with a drying function that allows for the removal of liquids, particularly in upper-side recesses such as hollows, depressions, grooves or other cavities of items held in loading units, during the final drying cycle of a dishwashing program.

[0010] The invention solves the problem by means of an object having the features of claim 1. Regarding advantageous embodiments and further developments of the invention, reference is made to claims 2 to 16.

[0011] According to the invention, in a household dishwasher, at least one loading unit and / or an upper wall bordering the wash tub is assigned one or more rotating fan wheels in the wash tub, with which air can be drawn in and blown out on the one hand, and wherein one or more of the fan wheels are suspended in a positionally movable, in particular pivotable, manner at least relative to a vertical axis during the drying cycle of the dishwashing program to be carried out, air can be blown out onto the items being washed below, and the angle of the air blowing out can vary.

[0012] For example, the movable mounting of a fan wheel allows it to tilt – preferably by a few degrees – as the speed increases (relative to a vertical axis), or to be tilted externally. This varies the direction of the downward airflow directed for drying.

[0013] In an advantageous embodiment of the invention, if several fan wheels are jointly held or mounted on a frame – for example, side by side in a plane – and the frame as a whole is movably suspended relative to a vertical axis on a loading unit or on a wall that defines the top of the washing container, the frame can be raised in a corner region of the frame by, for example, activating a first fan wheel located in that corner region, thereby tilting the entire frame relative to a vertical axis. This changes the airflow direction of all fan wheels mounted on the frame simultaneously.

[0014] In an advantageous embodiment of the invention, if the fan wheels of this frame are rotated at varying speeds and / or sequentially, the frame's orientation is varied over time, so that the resulting airflow (or airflows) repeatedly changes direction, thereby optimizing the drying performance of the items exposed to the resulting airflow (or airflows). This ensures improved drying results during the drying cycle of a dishwasher program.

[0015] However, if, according to a further advantageous embodiment of the invention, the fan wheel or wheels are individually suspended so as to be movable relative to a supporting frame or a wall that defines the top of the rinsing tank, at least with respect to a vertical axis, each fan wheel can individually vary its airflow. Here, too, it is particularly possible to vary the rotational speed of each fan wheel in order to achieve a slight angling of the respective fan wheel by varying the airflow intensity, thereby changing the direction of the airflow emitted or expelled by the respective fan wheel. The airflows of the multiple fans do not necessarily have to be parallel to each other.

[0016] Changing the direction of the emitted airflow can be advantageously achieved by providing an elastically deformable suspension for the frame to which the one or more fan wheels are attached, and / or for the fan wheel(s), allowing for positional mobility at least relative to a vertical axis. For this purpose, elastically deformable suspensions can be provided, for example, via support elements containing rubber, silicone, and / or TPE / TPV. Bands or sealing sleeves are also possible components of the suspensions.

[0017] Additionally or alternatively, it is also possible to achieve an elastically deformable suspension using springs.

[0018] In a preferred embodiment, each fan wheel is also possible to be held by several or by means of multiple suspensions with varying degrees of elasticity. In this case, too, the angular position of the fan wheel and the emitted airflow change, for example, due to the upward force caused by the airflow.

[0019] Instead of elastic elements and / or springs, a variation in the exit angle can be achieved via one or more pivot levers in the respective suspension. For example, a fan wheel can preferably be held by an approximately horizontal pivot lever that is movable about a horizontal axis with one degree of freedom, thus allowing the fan wheel to move slightly around the pivot axis in a circular path.

[0020] Preferably, in all cases, a change in the discharge direction can be achieved solely by operating the respective fan wheel, which, through its downward thrust, preferably tilts the fan wheel relative to the vertical. Additionally or alternatively, an external force can also be applied to vary the angle, for example via an electric motor. This motor can, for instance, act via cams on several pivot levers that hold the fan wheels.

[0021] As already indicated above, it is advantageous if several fan wheels are present, they can be individually controlled, and thus each controlled fan wheel can generate a thrust force that leads to a positional movement of this fan wheel in its suspension or of the several fan wheels around a common suspension.

[0022] In particular, one or more fan wheels may be held in its rest position in a horizontal loading plane of a loading unit (for example, a dish basket or cutlery drawer) or the upper wall.

[0023] Without varying their angle of position, the one or more fan wheels are preferably rotatable about a vertically oriented axis or axes.

[0024] In other words, and / or more generally, the respective fan wheel, in addition to its rotational movement around a predetermined axis of rotation, is also movable in position, in particular pivotable. This allows its axis of rotation to assume different positions during the drying phase of a dishwasher program, enabling it to blow air streams in various directions within the dishwasher's tub.

[0025] The drive motor assigned to the respective fan wheel can preferably be arranged above the respective fan wheel, so that the drive motor and fan wheel each form a compact unit with a very low overall height.

[0026] If one or more fans draw air from and expel it from the closed wash tank, no outlets in the tank wall, valves, or other additional components are required, thus keeping the design simple. Alternatively, air can also be drawn in from the outside, for example, by automatically opening the door slightly.

[0027] Further advantages and features will become apparent from the exemplary embodiments of the subject matter of the invention shown in the drawing and described below.

[0028] The drawing shows: Fig. 1 a schematic perspective view from a front oblique angle of an embodiment of a household dishwasher with a door at the front and a wash tub inside, Fig. 2 an exemplary detail view of a wash tub loaded with dishes and fan wheels attached below its upper wall in a side view, wherein, according to this image, a rigid connection of the fan wheels is provided and not tiltable relative to a vertical axis, Fig. 3 the wash tub Figure 2 In front view, Fig. 4 a schematic perspective view of a household dishwasher with a frame movably held at the top by four elements, on which fan wheels - not shown here - can be mounted or are held, Fig. 5 a partially cutaway view of a fan wheel suspended by a flexible, sealing sleeve, Fig. 6 a similar view as Figure 5, however with two fan wheels side by side, Fig. 7 a top view of a frame as in Figure 4 , however, here four fan wheels are held on the frame and are individually movable relative to the frame via differently elastic mounts, Fig. 8 a similar view as Figure 7 , however, the fan wheels are individually movable on the frame via pivot levers, Fig. 9 a front view of two fan wheels held via pivot levers.

[0029] Figure 1Figure 1 shows a schematic representation of a household dishwasher 1. This dishwasher, as part of a partially open or closed appliance body 5, often also referred to as the housing, has at least one wash container 2 for holding items to be washed, such as dishes, pots, cutlery, glasses, cooking utensils, etc. The items are held in loading units 10, 11, namely, as shown in the drawing, in dish racks 11 and / or a flat cutlery drawer 10, and are exposed to the wash water. Here, by way of example, two dish racks 11 are arranged one above the other, and an additional cutlery drawer 10 is arranged in the upper part of the wash container 2 as loading units. This arrangement is not mandatory. For bulky items to be washed, the customer can, for example, remove an upper dish rack 11 or the cutlery drawer 10 for a specific wash cycle.In the examples of the other figures, however, no cutlery drawer 10 is provided.

[0030] The term "washing liquor" refers to fresh water, or in particular water that circulates during operation and is preferably softened, with or without detergent and / or rinse aid and / or drying agent. The wash tank 2 can have a base plan that is at least substantially rectangular – in particular approximately square – with a front face V facing the user when in operation. This front face V can form part of a kitchen front consisting of adjacent kitchen furniture or, in the case of a freestanding unit, can be independent of any other furniture.

[0031] The wash tank 2 can be closed, particularly on this front side V, by a door or flap 3. This door 3 is in Figure 1The drawing shows the device in a partially open position, angled to the vertical. In its closed position, however, it stands upright and, according to the drawing, can be pivoted forward and downward around a lower horizontal axis in the direction of arrow 4, so that in the fully open position it lies at least almost horizontally.

[0032] On its vertical, user-facing outer and front side V in the closed position, the door 3 can be fitted with a decorative panel 6 to provide an optical and / or tactile enhancement and / or to adapt it to surrounding kitchen furniture.

[0033] The household dishwasher 1 is designed here as a freestanding unit, as a so-called semi-integrated unit, or as a fully integrated unit. In the latter case, the unit body 5 can essentially be sealed off from the outer walls of the wash tub 2. An external housing surrounding the tub may then be partially or completely unnecessary. A base 12 for accommodating functional elements, such as a circulation pump and / or a wastewater pump for the wash water, may be located in the lower section of the dishwasher.

[0034] In the embodiment shown in the drawing, the movable door 3 has a control panel 8 extending in the transverse direction Q of the dishwasher in its upper region. This control panel may include an access opening 7, accessible from the front V, for manually opening and / or closing the door 3. The dishwasher often has a transverse dimension Q of 45, 50, or 60 centimeters. The depth dimension from the front V to the rear is also often approximately 60 centimeters. These values ​​are not mandatory.

[0035] The wash tank 2 is bounded on all sides by a total of three fixed vertical walls 13 and two horizontal walls 15 when the door or flap 3 is closed. One of these horizontal walls forms the top wall and the other the bottom wall. The wall 14, which is located towards the front V, facing a user standing in front of the dishwasher 1, and is movable in this respect, forms an internal component of the movable door or flap 3.

[0036] The wall 15, which forms the bottom of the washing container 2 and essentially limits it downwards, lies approximately horizontally, i.e. parallel to an outer base B on which the dishwasher 1 stands, as does the upper wall 15.

[0037] At least one of the loading units 10, 11 is or are assigned one or more rotating fan wheels L1, L2, L3, L4 in the rinsing tank 2, with which air can be drawn in on the one hand and blown out on the other, in particular with a flow component pointing into the rinsing tank 2.

[0038] Here, for example, are in Figure 7 or Figure 8Four fan wheels L1, L2, L3, L4 are visible. This number is not mandatory. These are arranged in the upper region 16 of the rinsing tank 2 and each comprises a propeller-like part 17 and a drive part 18. The motors 18 are arranged axially close to the fan wheels L1, L2, L3, L4 and can be controlled by a control unit outside the rinsing tank 2, and are thus electrically connected to it. The drives 18 are arranged axially directly above the respective fan wheel L1, L2, L3, L4 and are preferably designed as a flat package, particularly as a contactless synchronous motor. This advantageously results in a very low overall height with an axial extent of less than four centimeters.The overall height of the motor 18 and fan wheel 17 is therefore advantageously less than five centimeters, so that it can also be assigned to a shallow cutlery drawer 10 or a similar loading unit.

[0039] The fan wheels L1, L2, L3 and L4 can be active during the drying phase and serve to improve the drying result of the items being washed 19, which are located approximately in the Figures 2 and 3as shown. As they rotate around a vertical axis 23, they draw in air and blow it onto the items being washed 19 with a downward-pointing component. Since, according to the invention, the respective fan wheel, and thus its direction of discharge, is movable relative to the vertical axis 23, the rotation does not necessarily occur exactly around this vertical axis 23, but rather around an axis slightly angled to it, which can also vary its position, as explained in more detail below. This movable position is in Figure 5 indicated below by the swivel arrow drawn there about the vertical axis 23.

[0040] In particular, the drying result is significantly improved for cup or glass bottoms facing upwards, or for similar concave shapes, indentations or the like.

[0041] The one or more fan wheels L1, L2, L3, L4 is or are assigned to and held against at least one loading unit 10, 11 and / or the upper wall 15 bordering the washing container 2 or a separate frame 21.

[0042] This results in a suspension of the fan wheels L1, L2, L3, L4 that is movable individually or together relative to their respective vertical axis 23. This positional mobility does not refer to the rotational mobility, which is already present, but rather to the tilting of the actual axis of rotation relative to the vertical axis 23. This variation in the discharged airflow results in an overall improvement in drying and the entire drying phase with regard to energy consumption, operating time, drying effectiveness, and environmental influences.

[0043] It is also possible, for example, that a cutlery drawer is divided lengthwise or crosswise, thus disrupting its symmetry. Only the right-hand section, as viewed from the user's perspective, forms a cutlery drawer 10 and can be pulled forward towards the front (V) to facilitate loading and unloading. The left-hand section, viewed from the front, can then contain two equally sized fan wheels, L1 and L3 (not shown). Here, the fan wheels L1 and L3 can lie in the same horizontal plane as the cutlery drawer 10 and therefore do not need to protrude downwards. This ensures that the full loading height is maintained in the loading unit(s) 11 below, which is particularly advantageous for tall items such as long-stemmed glasses.

[0044] In a first illustrated embodiment according to Figure 4One or more fan wheels L1, L2, L3, L4 are suspended from a frame 21 that holds them together. This frame is itself movably suspended from a loading unit 10, 11 or – as indicated here – from the wall 15 that forms the upper boundary of the washing tank 2 relative to a vertical axis 23. For this purpose, four suspensions 22 in the outer corner areas are used, for example. These suspensions 22 can be elastically deformable, with elasticity achieved by support elements containing rubber, silicone, and / or TPE / TPV. Alternatively, the mobility of the suspensions 22 can be achieved by springs.

[0045] This ensures a swiveling fan system by forming an elastic / flexible suspension 22 of the complete frame 21 on the wash tank 2. The fan(s) L1, L2, L3, L4 - in Figure 4(Not shown) - can be rigidly or elastically suspended in the frame 21. With a rigid suspension in the frame 21, the force exerted on the fan wheel, for example L1, by its downward air-expelling operation can be completely transmitted to the frame 21. If, for example, a fan is rigidly mounted in the front left corner 24 of the frame 21 and blows downwards, this fan generates an upward thrust. This thrust is transferred to the frame 21 via the rigid suspension, which then, due to its movable suspensions 22 at this corner 24, lifts the fan and thus tilts it slightly relative to the vertical. It is possible to cycle through the rotational speed of the aforementioned fan in several phases, so that the resulting thrust varies. Only when the thrust is on the order of the fan's weight does the fan lift.When several fans are held in the frame 21, which is particularly advantageous, the fans can be controlled sequentially, so that different corners of the frame 21 are alternately lifted. This, in conjunction with the soft bearing 22, pushes the frame 21 upwards in the area of ​​the respective driven motor, thus achieving the desired change of direction. The change of direction relative to the vertical is only a few degrees, up to approximately 5°, as otherwise the frame 21 could strike the top with the corner being moved upwards (for example, 24).

[0046] The elastic suspension 22 also results in decoupling from the walls 13, 14, 15 of the flushing tank 2, so that the noise and vibration behavior is also significantly improved.

[0047] The frame 21 can protrude downwards like an apron, thus providing some protection for the fan wheels L1, L2, L3, L4 as well as protection against interference with them.

[0048] Additionally or alternatively, it is also possible that each fan wheel L1, L2, L3, L4 is individually suspended from the supporting frame 21 or from the wall 15 that bounds the top of the wash tank 2, at least with respect to a vertical axis 23. For example, each fan wheel L1, L2, L3, L4 can be elastically suspended from the frame 21, which is then rigidly connected to the dishwasher 1.

[0049] A movable suspension of one or each individual fan wheel L1, L2, L3, L4 is in Figure 5 and Figure 6 shown for mounting on the upper wall or ceiling wall 15 of the flushing tank: In Figure 5 The installation of a single fan wheel L1 is shown, in Figure 6The mounting of two fan wheels L1 and L2, positioned side by side as viewed from the front V, is described. An elastically deformable mounting 22 is provided in the form of a sealing sleeve running around the vertical axis 23, which in turn contains rubber, silicone, and / or TPE / TPV. The mounting 22 is positively engaged in a bore 25 in the upper wall 15. This bore 25, which penetrates the outer wall 15, necessitates that the mounting 22 be circumferentially sealing. However, other connections and mountings are also possible, such as on a subframe or without penetrating the wall 15. As an alternative to the elastic mounting 22 via the sleeve, a movable mounting 22 of each fan wheel L1, L2, L3, I4 via one or more springs is also possible.

[0050] A movable suspension of one or each individual fan wheel L1, L2, L3, L4 is in Figure 7For elastic mounting on the frame 21, four fan wheels L1, L2, L3, L4 are shown as examples, each assigned to one of the corner regions of the frame 21, which is at least nearly square in plan view. The suspension 22 of each fan wheel (for example, L1) relative to the frame 21 is achieved here by means of three straps, supports, or similar brackets 22a, 22b, 22c. These brackets 22a, 22b, 22c act like approximately horizontal connecting struts. They can have different elasticities relative to each other, so that the defined inclination of each fan wheel L1, L2, L3, L4 to the vertical axis 23 is automatically established by the thrust occurring during operation.For example, the bracket 22a can be significantly more elastic than the brackets 22b and 22c, which raises the fan wheel L1 more laterally and directs the downward airflow somewhat laterally outwards into the corner area 24. Here, too, the brackets 22a, 22b, 22c, which extend radially from the motor 18 as connecting webs, are advantageously made of rubber, TPE, etc., and / or springs. With similar elasticity of the three (number not mandatory) brackets 22a, 22b, 22c, a limited, and quite desirable, wobbling movement of each fan wheel L1, L2, L3, L4 around the vertical axis 23 is possible during operation.

[0051] In a third version after the Figures 8 and 9The fan wheels L1, L2, L3, L4 are attached to the respective suspension 22, for example, by means of a pivot lever 27 with a movable joint / spherical bearing 28. The pivot levers 27 extend, for example, in a top view, according to... Figure 8 diagonally to a central joint 28 in the frame 21, so that a wobbling motion about the vertical axes 23 can occur during operation. The central arrangement of the joint 28 is not mandatory. Furthermore, it is possible that a separate joint 28 is provided for each of the fan wheels L1, L2, L3, L4.

[0052] The longitudinal distance of the pivot lever 27 to the joint 28 can vary, so that the movement pattern can also be varied.

[0053] In all versions, it is particularly possible to change the discharge direction preferably solely through the operation of the respective fan wheel L1, L2, L3, L4 and the resulting thrust. If multiple fan wheels L1, L2, L3, L4 are present, they can be individually controlled. For example, each fan wheel L1, L2, L3, L4 can be run in turn for a few seconds with a vertical discharge direction and then for a few seconds at full speed to enable a brief angled discharge. This is achieved by the thrust generated by each controlled fan wheel L1, L2, L3, L4, causing it to move within its mounting, or by the movement of multiple fan wheels L1, L2, L3, L4 around a common mounting. Controlling the multiple fan wheels L1, L2, L3, L4 sequentially then results in a multitude of discharge directions and particularly effective drying, especially in corner areas.

[0054] Alternatively or additionally, it is also possible that one or more fan wheels L1, L2, L3, L4 can be changed from the outside by motor in their position relative to a vertical axis 23, for example also together via a camshaft.

[0055] Each suspension 22 is designed to accommodate one to four fan wheels L1, L2, L3, L4.

[0056] It is advantageous if one or more fan wheels L1, L2, L3, L4 are held in their rest position in a horizontal loading plane of the loading unit 10, 11 or the wall 15. Due to their positional mobility, a permanent or, in particular, fluctuating angling of a few degrees to this plane can then occur during operation.

[0057] As can be clearly seen in the top views, the fan wheel(s) L1, L2, L3, L4 can be arranged axially symmetrically to a vertical longitudinal center plane and / or axially symmetrically to a vertical transverse center plane of the household dishwasher 1.

[0058] Unlike in the drawing, a single fan wheel L1, arranged centrally in the transverse and depth directions, can be provided, which with its diameter can almost fully utilize the available area in the washing container 2, i.e. can have a diameter of up to approximately 48 centimeters.

[0059] In the embodiments described and illustrated so far, the fan wheels L1, L2, L3, L4 are arranged axially symmetrically to a vertical longitudinal center plane and, if applicable, also axially symmetrically to a vertical transverse center plane of the dishwasher 1. This symmetry with respect to the vertical transverse center plane means that a user standing in front of the dishwasher 1 will find the same conditions to the left and right.

[0060] In all cases, an external air supply or exhaust is not mandatory; instead, the one or more fan wheels L1, L2, L3, L4 can draw air from and expel it from the closed wash tank 2. Automated, partial opening of the door 3 during the drying phase is also possible.

[0061] In all embodiments, the hydraulic effective range for cup bottom drying and similar applications is advantageously increased significantly by the movable, in particular pivotable, suspension of one or more fan wheels.

[0062] The invention offers, in particular, the following advantages: Increased hydraulic range of the drying system and thus improved drying results, especially in the corner areas of the wash tub; improved noise behavior due to the decoupling of the motors 18 from the wall 15 or the frame 21; and / or vibration decoupling of the drying system and / or its drive from the wash tub and / or other components of the household dishwasher 1.

[0063] Depending on the design and spatial conditions, the one or more fan wheels L1, L2, L3, L4 can be optionally assigned to a cutlery drawer 10 and / or a dish basket 11 and / or the aforementioned separate frame 21 and / or the upper wall 15.

[0064] Complete drying, especially of cup bottoms and similar recesses in the upper and lower baskets, is possible. This type of drying can also be particularly advantageously combined with an additional drying unit, for example via a heat exchanger and / or zeolite. Reference symbol list

[0065] 1 Appliance, 2 Dishwasher tub, 3 Door, 4 Opening direction, 5 Appliance body, 6 Decorative panel, 7 Recessed handle, 8 Control panel, 10 Cutlery drawer, 11 Dish basket, 12 Base, 13 Vertical wall, 14 Movable wall, 15 Horizontal wall, 16 Upper area, 17 Propeller-like part, 18 Drive part, 19 Dishes, 20 Cup or glass shelves, 21 Frame, 22 Suspensions, 22a, 22b, 22c Brackets, 23 Vertical axis, 24 Corner of frame, 25 Bore 27Swivel lever, 28Joint / spherical bearing, 29Swivel direction, Vfront, Qtransverse direction, Bbottom, L1, L2, L3, L4fan wheels,

Claims

1. Household dishwasher (1) having a dishwasher cavity (2) for accommodating items to be washed held on or in loading units (10, 11), for example dishes, glasses or cutlery, wherein, in a dishwashing program to be performed, wash fluid is able to strike the items to be washed in the dishwasher cavity (2) and subsequently it is possible to perform a drying cycle for drying the items to be washed, wherein one or multiple rotatable fan wheels (L1, L2, L3, L4) are arranged in the dishwasher cavity (2) allowing air to be both taken in and blown out, characterised in that individual or multiple fan wheels (L1, L2, L3, L4) are suspended movably, in particular pivotably, at least relative to a vertical axis (23) during the drying cycle of the dishwashing program to be performed, so that it is possible for the angle at which the air is blown out onto the items to be washed to vary.

2. Household dishwasher (1) according to claim 1, characterised in that one or multiple fan wheels (L1, L2, L3, L4) are supported on a frame and the frame is suspended movably, relative to a vertical axis, from a loading unit (10, 11) or a wall (15) delimiting the top of the dishwasher cavity (2).

3. Household dishwasher (1) according to one of claims 1 or 2, characterised in that the or each fan wheel (L1, L2, L3, L4) is suspended individually from a frame or a wall (15) delimiting the top of the dishwasher cavity (2) in such a manner that it can move, at least relative to a vertical axis.

4. Household dishwasher (1) according to one of claims 1 to 3, characterised in that to ensure that the one or multiple fan wheels (L1, L2, L3, L4) can move, at least relative to a vertical axis, an elastically deformable suspension unit is provided for a frame, on which the one or more fan wheel(s) (L1, L2, L3, L4) are suspended, and / or the fan wheel(s) (L1, L2, L3, L4).

5. Household dishwasher (1) according to claim 4, characterised in that an elastically deformable suspension unit is achieved by way of one or multiple support elements containing rubber, silicone and / or TPE / TPV.

6. Household dishwasher (1) according to one of claims 4 or 5, characterised in that an elastically deformable suspension unit is achieved by way of one or multiple springs.

7. Household dishwasher (1) according to one of claims 4 to 6, characterised in that the ability to move, at least relative to the vertical axis, is achieved by way of one or multiple pivot levers in the respective suspension unit.

8. Household dishwasher (1) according to one of claims 1 to 7, characterised in that a change in the blow-out direction can be achieved by operating the respective fan wheel (L1, L2, L3, L4).

9. Household dishwasher (1) according to one of claims 2 to 8, characterised in that if multiple fan wheels (L1, L2, L3, L4) are present, these can be activated individually, with the respectively activated fan wheel (L1, L2, L3, L4) generating a thrust force, which moves said fan wheel in its suspension unit or the multiple fan wheels (L1, L2, L3, L4) in their common suspension unit.

10. Household dishwasher (1) according to one of claims 1 to 9, characterised in that one to four fan wheels (L1, L2, L3, L4) are provided for each suspension unit.

11. Household dishwasher (1) according to one of claims 1 to 10, characterised in that the one or multiple fan wheel(s) (L1, L2, L3, L4) is / are held in its / their rest position in a horizontal loading plane of the loading unit (10, 11) or a wall (15).

12. Household dishwasher (1) according to one of claims 1 to 11, characterised in that the at least one fan wheel (L1, L2, L3, L4) can be rotated about a vertical axis.

13. Household dishwasher (1) according to one of claims 1 to 12, characterised in that the fan wheel(s) (L1, L2, L3, L4) is / are arranged with axial symmetry to a vertical longitudinal central plane and / or with axial symmetry to a vertical transverse central plane of the dishwasher (1).

14. Household dishwasher (1) according to one of claims 1 to 13, characterised in that the fan wheels (L1, L2, L3, L4) each have a diameter of 17 to 48 centimetres.

15. Household dishwasher (1) according to one of claims 1 to 14, characterised in that the one or multiple fan wheel(s) (L1, L2, L3, L4) are assigned to a cutlery drawer (10) provided as a loading unit and / or the one or multiple fan wheel(s) (L1, L2, L3, L4) are assigned to a dish rack (11) provided as a loading unit and / or a frame (21).

16. Household dishwasher (1) according to one of claims 1 to 15, characterised in that the position(s) of one or multiple fan wheel(s) (L1, L2, L3, L4), relative to a vertical axis, can be changed from the outside by motor.