EP3784107B1 - Household dishwasher with spraying device - Google Patents
Household dishwasher with spraying device Download PDFInfo
- Publication number
- EP3784107B1 EP3784107B1 EP19724355.3A EP19724355A EP3784107B1 EP 3784107 B1 EP3784107 B1 EP 3784107B1 EP 19724355 A EP19724355 A EP 19724355A EP 3784107 B1 EP3784107 B1 EP 3784107B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cage
- rotation
- bearing
- axis
- spray device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000005507 spraying Methods 0.000 title description 3
- 239000007921 spray Substances 0.000 claims description 81
- 238000005406 washing Methods 0.000 claims description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000013505 freshwater Substances 0.000 description 22
- 239000002245 particle Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000007792 addition Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004851 dishwashing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012487 rinsing solution Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
- A47L15/16—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with rigidly-mounted spraying devices
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4278—Nozzles
- A47L15/428—Rotary nozzles
Definitions
- the present invention relates to a domestic dishwasher.
- a dishwasher can have a washing compartment and spray devices arranged in the washing compartment for spraying items to be washed with washing liquor and/or fresh water.
- a spray device in particular as a so-called roof rotor, can be mounted on a ceiling of the washing compartment.
- the EP 1 382 287 A2 describes a rotatable spray head for a dishwasher with one or more spray openings.
- the spray head is rotatably mounted and secured by a bow-shaped holding arm on the tub side. With each rotation, the holding arm interrupts the water jets escaping from the spray openings once or several times, which increases the cleaning effect.
- the EP 2 134 230 B1 shows a dishwasher with hydraulics and at least one roof spray device arranged above a wash rack, which can be supplied with washing liquor by means of the hydraulics and which has a rotatable spray head which is attached to the hydraulics by means of a cage.
- the spray head is rotatably mounted in the cage.
- the CN 201505114 U describes a spray arm for a dishwasher.
- the spray arm comprises a plurality of gyro elements mounted rotatably on the spray arm, with the aid of which washing liquor can be sprayed.
- the KR 20070062296 A shows a spray arm for a dishwasher.
- the spray arm includes spray nozzles.
- the JP 2003225622 A describes a spray device for a dishwasher.
- the spray device includes a rotatable gyroscope element.
- the domestic dishwasher comprises a washing compartment and at least one spray device arranged inside the washing compartment for spraying washing liquid and/or fresh water in the washing compartment, the spray device comprising a cage and a gyro element mounted in the cage so that it can rotate about an axis of rotation, the gyro element having a radial spaced from the axis of rotation and encompasses a bearing surface that runs around it, with the aid of which the gyro element is rotatably mounted in the cage, the cage having a plurality of bearing sections against which the bearing surface rests when the spray device is in operation, and with one bearing section between each two adjacent bearing sections Space is provided.
- a large bearing play can be provided both in an axial direction and in a radial direction. This reliably prevents the gyro element from becoming blocked or jammed in the cage due to dirt particles.
- the gyro element is arranged within the cage and is mounted on it.
- “radially spaced” is to be understood to mean that the bearing surface is arranged at a distance from the axis of rotation, viewed in a radial direction of the spray device or of the gyro element.
- the radial direction is in particular perpendicular to the axis of rotation and oriented away from it.
- the gyro element is preferably mounted on the cage in an axial direction.
- the axial direction is oriented parallel to the axis of rotation or coincides with it.
- the bearing surface runs around the axis of rotation in particular in a ring and preferably completely.
- the spray device can, for example, be attached in a stationary manner to the washing compartment or to a washware receptacle accommodated in the washing compartment. Furthermore, the spray device can be arranged on a floor or a ceiling of the washing compartment. The spray device can also be arranged on a spray arm rotatably mounted on or in the washing container. A plurality of spray devices is preferably provided. A so-called intensive-rinse zone can be implemented in the washing compartment with the aid of the spray device. With the help of such an intensive wash zone, items to be washed that are difficult to clean and/or heavily soiled, such as bottles, Bowls, bowls, pots or the like can be easily cleaned.
- the cage is preferably attached to a housing of the spray device.
- the cage can be snapped or latched to the housing.
- the cage can also be designed in one piece, in particular in one piece of material, with the housing.
- the cage, the gyroscope element and the housing are preferably plastic components, in particular plastic injection molded components.
- the cage has a large number of bearing sections against which the bearing surface rests when the spray device is in operation.
- the gyro element is located between the cage and the housing.
- the gyroscope element can rest on the housing when the spray device is not in operation.
- the gyro element is lifted off the housing and the bearing surface of the gyro element is placed against the bearing sections of the cage.
- At least three bearing sections are preferably provided. However, more than three bearing sections, for example eight bearing sections, can also be provided.
- the bearing portions are provided on and extend out from a bearing surface of the cage. The bearing surface of the cage faces the bearing surface of the gyro element.
- the bearing sections are arranged at equal distances from one another, with a gap being provided between each two adjacent bearing sections.
- the bearing sections are preferably distributed uniformly around a circumference of the cage.
- An intermediate space is arranged in each case between two bearing sections and a bearing section is arranged in each case between two intermediate spaces.
- the cage comprises a bearing ring which runs around the axis of rotation and on which the bearing sections are provided.
- a plurality of, for example three, struts are preferably provided on the bearing ring, with the aid of which the cage is connected to the housing.
- each strut can be assigned two snap hooks which are designed to engage in a respective corresponding recess of the housing.
- the cage can be snapped or latched to the housing. This makes it easy to dismantle the cage.
- the struts are preferably distributed uniformly over a circumference of the bearing ring.
- three struts are provided.
- the bearing ring and the struts are a one-piece component, in particular a one-piece material component.
- the bearing sections extend in the direction of the struts.
- the household dishwasher also includes a nozzle for supplying the washing liquid and/or the fresh water to the gyro element, the nozzle being set up to spray the washing liquor and/or the fresh water onto the center of the gyro element.
- the nozzle can be provided centrally below or above the gyroscope element.
- the nozzle can be positioned centrally with respect to the axis of rotation.
- the nozzle can also be positioned offset to the gyro element or to the axis of rotation.
- the gyro element comprises moving blades and a connecting ring which runs around the axis of rotation and which connects the moving blades to one another, the bearing surface being provided on the connecting ring.
- a plurality of rotor blades is preferably provided. For example, three or four moving blades can be provided. As soon as the moving blades are exposed to the washing liquor and/or the fresh water, the gyro element is set in rotation. As a result, the washing liquor and/or the fresh water is distributed around the spray device in a hemispherical spray pattern. This conical spray pattern improves cleaning performance.
- the gyroscope element comprises a hub which is connected to the rotor blades, the hub being set up to feed the washing liquor and/or the fresh water to the rotor blades when the spray device is in operation.
- the nozzle sprays the washing liquor and/or the fresh water onto the center of the hub.
- the hub then distributes the washing liquor and/or the fresh water to the rotor blades.
- the hub is constructed rotationally symmetrically to the axis of rotation and has a lateral surface that is conical at least in sections.
- the hub preferably has a conical geometry with a conical apex or apex.
- a cone half angle or cone angle of the lateral surface can be, for example, 30° to 60°, more preferably 40° to 50°, more preferably 45°.
- the washing liquor and/or the fresh water is fed to the rotor blades along the lateral surface.
- the spray pattern of the spray device can be freely defined by varying the geometry of the lateral surface, that is, by varying the cone angle.
- a hemispherical spray pattern that is almost completely filled can be generated around the spray device by the most varied of cone angles of the hub and the rotation of the same.
- the blades are inclined at a rake angle relative to the axis of rotation.
- the angle of inclination can be, for example, 40° to 70°, preferably 45° to 65°, more preferably 50° to 60°, more preferably 55°. However, the angle of inclination can assume any other values.
- the rotor blades can additionally have a curved or curved shape when viewed in the radial direction.
- the cage is curved, in particular curved in the shape of a spherical cap.
- the cage can also have a different geometry.
- the 1 shows a schematic perspective view of an embodiment of a household dishwasher 1.
- the household dishwasher 1 comprises a washing compartment 2, which can be closed by a door 3, which is in particular watertight.
- a sealing device can be provided between the door 3 and the washing container 2 .
- the washing compartment 2 is preferably cuboid.
- the washing compartment 2 can be arranged in a housing of the domestic dishwasher 1 .
- the washing compartment 2 and the door 3 can form a washing chamber 4 for washing items to be washed.
- Door 3 is in the 1 shown in their 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 .
- a loading opening 6 of the washing compartment 2 can be closed or opened.
- the washing compartment 2 has a base 7, a cover 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 floor 7, the ceiling 8, the rear wall 9 and the side walls 10, 11 can be made from a stainless steel sheet, for example be.
- the bottom 7 can be made of a plastic material.
- the household dishwasher 1 also has at least one washware holder 12 to 14 .
- washware holder 12 being a lower washware holder or a lower rack
- washware holder 13 being an upper washware holder or an upper rack
- washware holder 14 being a cutlery drawer.
- the washing items receptacles 12 to 14 are arranged one above the other in the washing compartment 2 .
- Each washware holder 12 to 14 can be moved either into or out of the washing compartment 2 .
- each washware receptacle 12 to 14 can be pushed or moved into the washing compartment 2 in an insertion direction E and pulled out or moved out of the washing compartment 2 in an extension direction A counter to the insertion direction E.
- the 2 shows a schematic perspective view of an embodiment of a spray device 15 for the domestic dishwasher 1.
- the 3 shows a schematic sectional view of the spray device 15.
- the spray device 15 can be provided, for example, on the floor 7, the ceiling 8, the rear wall 9, the side walls 10, 11, one of the washware receptacles 12 to 14 or on spray arms, not shown, of the domestic dishwasher 1 .
- a plurality of spray devices 15 of this type are preferably provided.
- a so-called intensive rinsing zone 16 ( 1 ) can be realized on one of the dishes receptacles 12 to 14.
- intensive washing zone 16 heavily soiled and/or difficult-to-clean items to be washed, such as bottles, bowls, bowls, pots or the like, can be cleaned particularly well.
- the spray device 15 is set up to distribute and/or spray washing liquor and/or fresh water F within the washing compartment 2 .
- the spray device 15 comprises a cage 17 ( 4 ) and a gyroscope element 18 rotatably mounted in the cage 17 ( figure 5 ). Furthermore, the spray device 15 comprises a housing 19.
- the housing 19 can be in one piece, in particular in one piece of material, with the cage 17 be trained.
- the cage 17, the gyroscope element 18 and the housing 19 are preferably designed as plastic components, in particular as plastic injection molded components.
- the gyroscope element 18 is rotatably mounted in the cage 17 about an axis of rotation D.
- the Indian 4 The cage 17 shown in a schematic perspective view comprises a bearing ring 20 running around the axis of rotation D.
- Three struts 21 to 23 are provided on the bearing ring 20 .
- the struts 21 to 23 are formed in one piece, in particular from one piece of material, with the bearing ring 20 .
- Preferably three such struts 21 to 23 are provided.
- the number of struts 21 to 23 is arbitrary. At least two such struts 21 to 23 are preferably provided.
- the struts 21 to 23 are arranged at a uniform distance from one another around a circumference of the bearing ring 20 .
- Each strut 21 to 23 has two resiliently deformable snap hooks 24, 25.
- the snap hooks 24, 25 are designed to engage in corresponding recesses in the housing 19 in order to connect the cage 17 to the housing 19 in a form-fitting manner.
- a form-fitting connection is created by at least two connection partners engaging in one another or behind, in this case the snap hooks 24, 25 and the corresponding recess of the housing 19.
- the cage 17, in particular the bearing ring 20 and the struts 21 to 23 is curved, in particular curved in the shape of a spherical cap.
- an outer contour of the cage 17 is in the form of a spherical cap.
- An annular bearing surface 26 running around the axis of rotation D is provided on the inside of the cage 17 .
- the bearing surface 26 points in the direction of the struts 21 to 23.
- a plurality of bearing sections 27, 28 extends out of the bearing surface 26. In the 4 only two such bearing sections 27, 28 are provided with a reference number. For example, eight such bearing sections 27, 28 are provided, which are arranged at equal distances from one another.
- An intermediate space 29 is provided between two adjacent bearing sections 27, 28 in each case. That is, between two bearing sections 27, 28 there is a gap 29 and between two gaps 29 a bearing section 27, 28 is provided.
- the bearing sections 27, 28 extend in the direction of the struts 21 to 23.
- the bearing sections 27, 28 are spaced radially from the axis of rotation D. That is, the bearing portions 27, 28 are in a radial direction R ( 3 ) from the axis of rotation D spaced.
- the radial direction R is oriented perpendicular to the axis of rotation D and points away from the axis of rotation D to the outside.
- the gyroscope element 18 shown comprises a hub 30 which is rotationally symmetrical to the axis of rotation D.
- the hub 30 can have an at least partially conical lateral surface 31 ( 3 ) include.
- the gyroscope element 18 comprises a multiplicity of moving blades 32 to 34 which are connected to the hub 30 in one piece, in particular in one piece of material.
- the number of moving blades 32 to 34 is arbitrary. Preferably three such moving blades 32 to 34 are provided. However, two, four or five rotor blades 32 to 34 can also be provided.
- the gyroscope element 18 can be made to rotate about the axis of rotation D when it is acted upon by the washing liquor and/or the fresh water F.
- the blades 32 to 34 as in the 3 shown, be inclined at an angle of inclination ⁇ to the axis of rotation D.
- the angle of inclination ⁇ can be, for example, 40° to 70°, preferably 45° to 65°, more preferably 50° to 60°, more preferably 55°.
- the angle of inclination ⁇ can assume any other values.
- the rotor blades 32 to 34 are also curved or swung in an arc shape when viewed in the radial direction R.
- the rotor blades 32 to 34 are connected to one another with the aid of a connecting ring 35 running around the gyro element 18 .
- the connecting ring 35 is spaced apart from the axis of rotation D as viewed in the radial direction R and is provided completely surrounding it.
- the connecting ring 35 comprises an annular bearing surface 36 which runs all the way around the axis of rotation D and which is designed to bear against the bearing sections 27 , 28 of the cage 17 when the spray device 15 is in operation. That is, the gyroscope element 18 is rotatably supported in the cage 17 with the aid of the bearing surface 36 .
- the gyroscope element 18 is a plastic injection molded component.
- the housing 19 includes a supply line 40 and a nozzle 41 for supplying the washing liquor and/or the fresh water F to the gyro element 18.
- the nozzle 41 is set up to direct the rinsing liquor and/or the fresh water centrally onto the gyro element 18, i.e. on the hub 30 to inflate.
- the washing liquor and/or the fresh water F can flow out of the nozzle 41 under high pressure and/or be sprayed with the aid of this.
- the nozzle 41 is preferably designed to be rotationally symmetrical to the axis of rotation D. Alternatively, the nozzle 41 can also be designed asymmetrically to the axis of rotation D and/or be arranged offset relative to it. However, the nozzle 41 is preferably positioned centrally under the hub 30 of the gyroscope element 18 .
- the gyroscope element 18 can be arranged above or below the nozzle 41 with respect to a direction of gravity g. In the orientation of 3 the nozzle 41 is arranged below the gyro element 18 with respect to the direction of gravity g.
- the functionality of the spray device 15 is explained below.
- Rinsing solution and/or fresh water F is supplied to the nozzle 41 via the supply line 40 .
- the washing liquor and/or the fresh water F is sprayed onto the center of the hub 30 with the aid of the nozzle 41 .
- the gyroscope element 18 is lifted off the housing 19 so that the support sections 37, 38 are no longer in contact with the housing 19.
- An axial bearing play 42 between the bearing surface 36 and the bearing sections 27 , 28 is reduced in an axial direction AR in such a way that the bearing surface 26 bears against the bearing sections 27 , 28 of the cage 17 .
- the gyro element 18 is mounted on the cage 17 in the axial direction AR.
- the washing liquor and/or the fresh water F is directed outwards in the radial direction R via the conical lateral surface 31 of the hub 30 and at least partially fed to the rotor blades 32 to 34 .
- the gyroscope element 18, as mentioned above, in rotation, as in FIG 3 is indicated by an arrow 43.
- the washing liquor and/or the fresh water F is also pumped with the help of the rotor blades 32 to 34 distributed. This results in a conical spray pattern around the spray device 15, which can have a small dead area only in the area of the hub 30.
- the lateral surface 31 of the hub 30 can be designed freely, so that it has a flatter or steeper tip, for example.
- a spray angle ⁇ of a spray jet or a spray pattern can also be influenced by the rotational speed of the gyro element 18 . The higher the rotation speed, the flatter the spray angle ⁇ .
- the angle of inclination ⁇ of the rotor blades 32 to 34 can be freely selected and can be adjusted depending on the required drive torque.
- the mounting of the gyro element 18 in the cage 17 has the aforementioned bearing play 42 .
- a similar bearing play is also provided in the radial direction R.
- the bearing in the axial direction AR takes place via the bearing surface 36 and the bearing sections 27, 28 of the cage 17. Dirt particles can flow between the bearing sections 27, 28 through the intermediate spaces 29. This prevents jamming due to dirt particles.
- the bearing in the radial direction and the centering take place via the washing liquid sprayed through the nozzle 41 and/or the fresh water F.
- the spray device 15 has a number of advantages over known spray devices.
- a freely definable spray pattern can be achieved by a corresponding design of the lateral surface 31 of the hub 30 and the angle of inclination ⁇ of the rotor blades 32 to 34 .
- a minimal dead zone can be achieved. This improves the cleaning performance.
- the functionality of the spray device 15 is clearly visible to a user and the added value is easy to understand.
- the spray device 15 is dirt-resistant due to a corresponding bearing play both in the axial direction AR and in the radial direction R.
- the gyro element 18 can be prevented from jamming in the cage 17 due to dirt particles. The dirt particles can be flushed through the gaps 29 . If the gyro element 18 is blocked, there is still very good emergency operation behavior.
- the spray device 15 can also be attached below the wash items receptacles 12 to 14, for example to implement the intensive wash zone 16.
- the spray device 15 can also be used for the media air or steam. Due to the external bearing, a homogeneous spray pattern can be achieved with almost no spray shadows, particularly in the area of the hub 30. Furthermore, with this type of storage, it is possible for the gyro element 18 to deviate in the event of larger dirt particles. This reliably prevents clogging or jamming of the spray device 15 due to dirt particles jammed between the hub 30 and the nozzle 41 .
Landscapes
- Washing And Drying Of Tableware (AREA)
- Cleaning By Liquid Or Steam (AREA)
Description
Die vorliegende Erfindung betrifft eine Haushalts-Geschirrspülmaschine.The present invention relates to a domestic dishwasher.
Eine Geschirrspülmaschine kann einen Spülbehälter und in dem Spülbehälter angeordnete Sprüheinrichtungen zum Besprühen von Spülgut mit Spülflotte und/oder Frischwasser aufweisen. Beispielsweise kann eine derartige Sprüheinrichtung, insbesondere als sogenannter Dachkreisel, an einer Decke des Spülbehälters montiert sein.A dishwasher can have a washing compartment and spray devices arranged in the washing compartment for spraying items to be washed with washing liquor and/or fresh water. For example, such a spray device, in particular as a so-called roof rotor, can be mounted on a ceiling of the washing compartment.
Die
Die
Die
Die
Die
Vor diesem Hintergrund besteht eine Aufgabe der Erfindung darin, eine verbesserte Haushalts-Geschirrspülmaschine zur Verfügung zu stellen.Against this background, it is an object of the invention to provide an improved domestic dishwasher.
Demgemäß wird eine Haushalts-Geschirrspülmaschine vorgeschlagen. Die Haushalts-Geschirrspülmaschine umfasst einen Spülbehälter und zumindest eine innerhalb des Spülbehälters angeordnete Sprüheinrichtung zum Versprühen von Spülflotte und/oder Frischwasser in dem Spülbehälter, wobei die Sprüheinrichtung einen Käfig und ein in dem Käfig um eine Drehachse drehbar gelagertes Kreiselelement umfasst, wobei das Kreiselelement eine radial beabstandet von der Drehachse und um diese umlaufende Lagerfläche umfasst, mit deren Hilfe das Kreiselelement in dem Käfig drehbar gelagert ist, wobei der Käfig eine Vielzahl an Lagerabschnitten aufweist, an denen die Lagerfläche im Betrieb der Sprüheinrichtung anliegt, und wobei zwischen zwei benachbarten Lagerabschnitten jeweils ein Zwischenraum vorgesehen ist.Accordingly, a domestic dishwasher is proposed. The domestic dishwasher comprises a washing compartment and at least one spray device arranged inside the washing compartment for spraying washing liquid and/or fresh water in the washing compartment, the spray device comprising a cage and a gyro element mounted in the cage so that it can rotate about an axis of rotation, the gyro element having a radial spaced from the axis of rotation and encompasses a bearing surface that runs around it, with the aid of which the gyro element is rotatably mounted in the cage, the cage having a plurality of bearing sections against which the bearing surface rests when the spray device is in operation, and with one bearing section between each two adjacent bearing sections Space is provided.
Dadurch, dass das Kreiselelement nicht mittig an der Drehachse, sondern an der von der Drehachse radial beabstandet angeordneten Lagerfläche gelagert ist, kann sowohl in einer axialen Richtung als auch in einer radialen Richtung ein großes Lagerspiel vorgesehen sein. Hierdurch wird ein Blockieren oder Verklemmen des Kreiselelements in dem Käfig aufgrund von Schmutzpartikeln zuverlässig verhindert.Due to the fact that the gyro element is not mounted centrally on the axis of rotation, but on the bearing surface arranged at a radial distance from the axis of rotation, a large bearing play can be provided both in an axial direction and in a radial direction. This reliably prevents the gyro element from becoming blocked or jammed in the cage due to dirt particles.
Insbesondere ist das Kreiselelement innerhalb des Käfigs angeordnet und an diesem gelagert. Unter "radial beabstandet" ist vorliegend zu verstehen, dass die Lagerfläche in einer Radialrichtung der Sprüheinrichtung beziehungsweise des Kreiselelements betrachtet in einem Abstand zu der Drehachse angeordnet ist. Die Radialrichtung ist insbesondere senkrecht zu der Drehachse und von dieser weg orientiert. Mit Hilfe der Lagerfläche ist das Kreiselelement bevorzugt in einer Axialrichtung an dem Käfig gelagert. Die Axialrichtung ist dabei parallel zu der Drehachse orientiert oder stimmt mit dieser überein. Die Lagerfläche umläuft dabei die Drehachse insbesondere ringförmig und bevorzugt vollständig. Die Sprüheinrichtung kann beispielsweise ortsfest an dem Spülbehälter oder an einer in dem Spülbehälter aufgenommenen Spülgutaufnahme befestigt sein. Ferner kann die Sprüheinrichtung an einem Boden oder einer Decke des Spülbehälters angeordnet sein. Die Sprüheinrichtung kann auch an einem drehbar an oder in dem Spülbehälter gelagerten Sprüharm angeordnet sein. Vorzugsweise ist eine Vielzahl an Sprüheinrichtungen vorgesehen. Mit Hilfe der Sprüheinrichtung kann in dem Spülbehälter eine sogenannte Intensivspülzone verwirklich werden. Mit Hilfe einer derartigen Intensivspülzone kann schwer zu reinigendes und/oder stark verschmutztes Spülgut, wie beispielsweise Flaschen, Schüsseln, Schalen, Töpfe oder dergleichen, einfach gereinigt werden. Der Käfig ist vorzugsweise an einem Gehäuse der Sprüheinrichtung befestigt. Beispielsweise kann der Käfig mit dem Gehäuse verschnappt oder verrastet sein. Alternativ kann der Käfig auch einteilig, insbesondere materialeinstückig, mit dem Gehäuse ausgebildet sein. Vorzugsweise sind der Käfig, das Kreiselelement und das Gehäuse Kunststoffbauteile, insbesondere Kunststoffspritzgussbauteile.In particular, the gyro element is arranged within the cage and is mounted on it. In the present case, “radially spaced” is to be understood to mean that the bearing surface is arranged at a distance from the axis of rotation, viewed in a radial direction of the spray device or of the gyro element. The radial direction is in particular perpendicular to the axis of rotation and oriented away from it. With the aid of the bearing surface, the gyro element is preferably mounted on the cage in an axial direction. The axial direction is oriented parallel to the axis of rotation or coincides with it. The bearing surface runs around the axis of rotation in particular in a ring and preferably completely. The spray device can, for example, be attached in a stationary manner to the washing compartment or to a washware receptacle accommodated in the washing compartment. Furthermore, the spray device can be arranged on a floor or a ceiling of the washing compartment. The spray device can also be arranged on a spray arm rotatably mounted on or in the washing container. A plurality of spray devices is preferably provided. A so-called intensive-rinse zone can be implemented in the washing compartment with the aid of the spray device. With the help of such an intensive wash zone, items to be washed that are difficult to clean and/or heavily soiled, such as bottles, Bowls, bowls, pots or the like can be easily cleaned. The cage is preferably attached to a housing of the spray device. For example, the cage can be snapped or latched to the housing. Alternatively, the cage can also be designed in one piece, in particular in one piece of material, with the housing. The cage, the gyroscope element and the housing are preferably plastic components, in particular plastic injection molded components.
Der Käfig weist eine Vielzahl an Lagerabschnitten auf, an denen die Lagerfläche im Betrieb der Sprüheinrichtung anliegt.The cage has a large number of bearing sections against which the bearing surface rests when the spray device is in operation.
Vorzugsweise ist das Kreiselelement zwischen dem Käfig und dem Gehäuse angeordnet. Beispielsweise kann das Kreiselelement dann, wenn die Sprüheinrichtung außer Betrieb ist, auf dem Gehäuse aufliegen. Sobald das Kreiselelement mit Spülflotte und/oder Frischwasser beaufschlagt wird, wird das Kreiselelement von dem Gehäuse abgehoben, und die Lagerfläche des Kreiselelements wird an die Lagerabschnitte des Käfigs angelegt. Vorzugsweise sind zumindest drei Lagerabschnitte vorgesehen. Es können jedoch auch mehr als drei Lagerabschnitte, beispielsweise acht Lagerabschnitte, vorgesehen sein. Die Lagerabschnitte sind an einer Lagerfläche des Käfigs vorgesehen und erstrecken sich aus dieser heraus. Die Lagerfläche des Käfigs ist der Lagerfläche des Kreiselelements zugewandt.Preferably, the gyro element is located between the cage and the housing. For example, the gyroscope element can rest on the housing when the spray device is not in operation. As soon as the gyro element is loaded with washing liquor and/or fresh water, the gyro element is lifted off the housing and the bearing surface of the gyro element is placed against the bearing sections of the cage. At least three bearing sections are preferably provided. However, more than three bearing sections, for example eight bearing sections, can also be provided. The bearing portions are provided on and extend out from a bearing surface of the cage. The bearing surface of the cage faces the bearing surface of the gyro element.
Die Lagerabschnitte sind gleichmäßig voneinander beabstandet angeordnet, wobei zwischen zwei benachbarten Lagerabschnitten jeweils ein Zwischenraum vorgesehen ist.The bearing sections are arranged at equal distances from one another, with a gap being provided between each two adjacent bearing sections.
Vorzugsweise sind die Lagerabschnitte gleichmäßig um einen Umfang des Käfigs verteilt angeordnet. Zwischen zwei Lagerabschnitten ist jeweils ein Zwischenraum und zwischen zwei Zwischenräumen ist jeweils ein Lagerabschnitt angeordnet. Dadurch, dass die Zwischenräume vorgesehen sind, wird ein Verklemmen des Kreiselements in dem Käfig aufgrund von Schmutzpartikeln zuverlässig verhindert, da die Schmutzpartikel durch die Zwischenräume hindurchgespült werden.The bearing sections are preferably distributed uniformly around a circumference of the cage. An intermediate space is arranged in each case between two bearing sections and a bearing section is arranged in each case between two intermediate spaces. The fact that the gaps are provided reliably prevents the circuit element from jamming in the cage due to dirt particles, since the dirt particles are flushed through the gaps.
Gemäß einer weiteren Ausführungsform umfasst der Käfig einen um die Drehachse umlaufenden Lagerring, an dem die Lagerabschnitte vorgesehen sind.According to a further embodiment, the cage comprises a bearing ring which runs around the axis of rotation and on which the bearing sections are provided.
Vorzugsweise sind an dem Lagerring mehrere, beispielsweise drei, Streben vorgesehen, mit deren Hilfe der Käfig mit dem Gehäuse verbunden ist. Jeder Strebe können dabei zwei Schnapphaken zugeordnet sein, die dazu eingerichtet sind, in eine jeweilige korrespondierende Ausnehmung des Gehäuses einzugreifen. Hierdurch kann der Käfig mit dem Gehäuse verschnappt oder verrastet werden. Eine Demontage des Käfigs ist hierdurch einfach möglich. Vorzugsweise sind die Streben gleichmäßig über einen Umfang des Lagerrings verteilt angeordnet. Beispielsweise sind drei Streben vorgesehen. Der Lagerring und die Streben sind ein einteiliges, insbesondere ein materialeinstückiges, Bauteil. Die Lagerabschnitte erstrecken sich dabei in Richtung der Streben.A plurality of, for example three, struts are preferably provided on the bearing ring, with the aid of which the cage is connected to the housing. In this case, each strut can be assigned two snap hooks which are designed to engage in a respective corresponding recess of the housing. As a result, the cage can be snapped or latched to the housing. This makes it easy to dismantle the cage. The struts are preferably distributed uniformly over a circumference of the bearing ring. For example, three struts are provided. The bearing ring and the struts are a one-piece component, in particular a one-piece material component. The bearing sections extend in the direction of the struts.
Gemäß einer weiteren Ausführungsform umfasst die Haushalts-Geschirrspülmaschine ferner eine Düse zum Zuführen der Spülflotte und/oder des Frischwassers zu dem Kreiselelement, wobei die Düse dazu eingerichtet ist, die Spülflotte und/oder das Frischwasser mittig auf das Kreiselelement aufzudüsen.According to a further embodiment, the household dishwasher also includes a nozzle for supplying the washing liquid and/or the fresh water to the gyro element, the nozzle being set up to spray the washing liquor and/or the fresh water onto the center of the gyro element.
Hierzu kann die Düse mittig unterhalb oder oberhalb des Kreiselelements vorgesehen sein. Insbesondere kann die Düse mittig bezüglich der Drehachse positioniert sein. Die Düse kann jedoch auch versetzt zu dem Kreiselelement beziehungsweise zu der Drehachse positioniert sein.For this purpose, the nozzle can be provided centrally below or above the gyroscope element. In particular, the nozzle can be positioned centrally with respect to the axis of rotation. However, the nozzle can also be positioned offset to the gyro element or to the axis of rotation.
Gemäß einer weiteren Ausführungsform umfasst das Kreiselelement Laufschaufeln und einen um die Drehachse umlaufenden Verbindungsring, der die Laufschaufeln miteinander verbindet, wobei die Lagerfläche an dem Verbindungsring vorgesehen ist.According to a further embodiment, the gyro element comprises moving blades and a connecting ring which runs around the axis of rotation and which connects the moving blades to one another, the bearing surface being provided on the connecting ring.
Vorzugsweise ist eine Vielzahl an Laufschaufeln vorgesehen. Beispielsweise können drei oder vier Laufschaufeln vorgesehen sein. Sobald die Laufschaufeln mit der Spülflotte und/oder dem Frischwasser beaufschlagt werden, wird das Kreiselelement in Rotation versetzt. Hierdurch wird die Spülflotte und/oder das Frischwasser mit einem halbkugelförmigen Sprühbild um die Sprüheinrichtung herum verteilt. Dieses kegelförmige Sprühbild verbessert die Reinigungsleistung.A plurality of rotor blades is preferably provided. For example, three or four moving blades can be provided. As soon as the moving blades are exposed to the washing liquor and/or the fresh water, the gyro element is set in rotation. As a result, the washing liquor and/or the fresh water is distributed around the spray device in a hemispherical spray pattern. This conical spray pattern improves cleaning performance.
Gemäß einer weiteren Ausführungsform umfasst das Kreiselelement eine Nabe, die mit den Laufschaufeln verbunden ist, wobei die Nabe dazu eingerichtet ist, im Betrieb der Sprüheinrichtung die Spülflotte und/oder das Frischwasser den Laufschaufeln zuzuleiten.According to a further embodiment, the gyroscope element comprises a hub which is connected to the rotor blades, the hub being set up to feed the washing liquor and/or the fresh water to the rotor blades when the spray device is in operation.
Insbesondere düst die Düse die Spülflotte und/oder das Frischwasser mittig auf die Nabe auf. Die Nabe verteilt dann die Spülflotte und/oder das Frischwasser auf die Laufschaufeln.In particular, the nozzle sprays the washing liquor and/or the fresh water onto the center of the hub. The hub then distributes the washing liquor and/or the fresh water to the rotor blades.
Gemäß einer weiteren Ausführungsform ist die Nabe rotationssymmetrisch zu der Drehachse aufgebaut und weist eine zumindest abschnittsweise kegelförmige Mantelfläche auf.According to a further embodiment, the hub is constructed rotationally symmetrically to the axis of rotation and has a lateral surface that is conical at least in sections.
Die Nabe weist bevorzugt eine kegelförmige Geometrie mit einer Kegelspitze oder Spitze auf. Ein Kegelhalbwinkel oder Kegelwinkel der Mantelfläche kann beispielsweise 30° bis 60°, weiter bevorzugt 40° bis 50°, weiter bevorzugt 45°, betragen. An der Mantelfläche entlang wird die Spülflotte und/oder das Frischwasser den Laufschaufeln zugeleitet. Durch eine Variation der Geometrie der Mantelfläche, das heißt, durch eine Variation des Kegelwinkels, ist das Sprühbild der Sprüheinrichtung frei definierbar. Durch verschiedenste Kegelwinkel der Nabe und die Rotation desselben kann ein annähernd komplett ausgefülltes halbkugelförmiges Sprühbild um die Sprüheinrichtung herum erzeugt werden.The hub preferably has a conical geometry with a conical apex or apex. A cone half angle or cone angle of the lateral surface can be, for example, 30° to 60°, more preferably 40° to 50°, more preferably 45°. The washing liquor and/or the fresh water is fed to the rotor blades along the lateral surface. The spray pattern of the spray device can be freely defined by varying the geometry of the lateral surface, that is, by varying the cone angle. A hemispherical spray pattern that is almost completely filled can be generated around the spray device by the most varied of cone angles of the hub and the rotation of the same.
Gemäß einer weiteren Ausführungsform sind die Laufschaufeln in einem Neigungswinkel relativ zu der Drehachse geneigt.According to another embodiment, the blades are inclined at a rake angle relative to the axis of rotation.
Der Neigungswinkel kann beispielsweise 40° bis 70°, bevorzugt 45° bis 65°, weiter bevorzugt 50° bis 60°, weiter bevorzugt 55°, betragen. Der Neigungswinkel kann jedoch beliebige andere Werte einnehmen. Die Laufschaufeln können zusätzlich in der Radialrichtung betrachtet eine geschwungene oder gekrümmte Form aufweisen.The angle of inclination can be, for example, 40° to 70°, preferably 45° to 65°, more preferably 50° to 60°, more preferably 55°. However, the angle of inclination can assume any other values. The rotor blades can additionally have a curved or curved shape when viewed in the radial direction.
Gemäß einer weiteren Ausführungsform ist der Käfig gekrümmt, insbesondere kugelkalottenförmig gekrümmt.According to a further embodiment, the cage is curved, in particular curved in the shape of a spherical cap.
Hierdurch ergibt sich ein besonders kompakter Aufbau der Sprüheinrichtung. Alternativ kann der Käfig auch eine andere Geometrie aufweisen.This results in a particularly compact design of the spray device. Alternatively, the cage can also have a different geometry.
Weitere mögliche Implementierungen der Haushalts-Geschirrspülmaschine umfassen auch nicht explizit genannte Kombinationen von zuvor oder im Folgenden bezüglich der Ausführungsbeispiele beschriebenen Merkmalen oder Ausführungsformen. Dabei wird der Fachmann auch Einzelaspekte als Verbesserungen oder Ergänzungen zu der jeweiligen Grundform der Haushalts-Geschirrspülmaschine hinzufügen.Further possible implementations of the domestic dishwasher also include combinations of features or embodiments described above or below with regard to the exemplary embodiments that are not explicitly mentioned. The person skilled in the art will also add individual aspects as improvements or additions to the respective basic form of the domestic dishwasher.
Weitere vorteilhafte Ausgestaltungen und Aspekte der Haushalts-Geschirrspülmaschine sind Gegenstand der Unteransprüche sowie der im Folgenden beschriebenen Ausführungsbeispiele der Haushalts-Geschirrspülmaschine. Im Weiteren wird die Haushalts-Geschirrspülmaschine anhand von bevorzugten Ausführungsformen unter Bezugnahme auf die beigelegten Figuren näher erläutert.
-
Fig. 1 zeigt eine schematische perspektivische Ansicht einer Ausführungsform einer Haushalts-Geschirrspülmaschine; -
Fig. 2 zeigt eine schematische perspektivische Ansicht einer Ausführungsform einer Sprüheinrichtung für die Haushalts-Geschirrspülmaschine gemäßFig. 2 ; -
Fig. 3 zeigt eine schematische Schnittansicht der Sprüheinrichtung gemäßFig. 2 ; -
Fig. 4 zeigt eine schematische perspektivische Ansicht einer Ausführungsform eines Käfigs für die Sprüheinrichtung gemäßFig. 2 ; und -
Fig. 5 zeigt eine schematische perspektivische Ansicht einer Ausführungsform eines Kreiselelements für die Sprüheinrichtung gemäßFig. 2 .
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1 shows a schematic perspective view of an embodiment of a domestic dishwasher; -
2 shows a schematic perspective view of an embodiment of a spray device for the domestic dishwasher according to FIG2 ; -
3 shows a schematic sectional view of the spray device according to FIG2 ; -
4 shows a schematic perspective view of an embodiment of a cage for the spray device according to FIG2 ; and -
figure 5 shows a schematic perspective view of an embodiment of a gyro element for the spray device according to FIG2 .
In den Figuren sind gleiche oder funktionsgleiche Elemente mit denselben Bezugszeichen versehen worden, sofern nichts anderes angegeben ist.Elements that are the same or have the same function have been provided with the same reference symbols in the figures, unless otherwise stated.
Die
Die Tür 3 ist in der
Die Haushalts-Geschirrspülmaschine 1 weist ferner zumindest eine Spülgutaufnahme 12 bis 14 auf. Vorzugsweise können mehrere, beispielsweise drei, Spülgutaufnahmen 12 bis 14 vorgesehen sein, wobei die Spülgutaufnahme 12 eine untere Spülgutaufnahme oder ein Unterkorb, die Spülgutaufnahme 13 eine obere Spülgutaufnahme oder ein Oberkorb und die Spülgutaufnahme 14 eine Besteckschublade sein kann. Wie die
Die
Vorzugsweise sind mehrere derartige Sprüheinrichtungen 15 vorgesehen. Mit Hilfe der Sprüheinrichtung 15 kann beispielsweise eine sogenannte Intensivspülzone 16 (
Die Sprüheinrichtung 15 umfasst einen Käfig 17 (
Der in der
Jede Strebe 21 bis 23 weist zwei federelastisch verformbare Schnapphaken 24, 25 auf. Die Schnapphaken 24, 25 sind dazu eingerichtet, in entsprechende Ausnehmungen des Gehäuses 19 einzugreifen, um den Käfig 17 formschlüssig mit dem Gehäuse 19 zu verbinden. Eine formschlüssige Verbindung entsteht durch das Ineinander- oder Hintergreifen von mindestens zwei Verbindungspartnern, in diesem Fall den Schnapphaken 24, 25 und der entsprechenden Ausnehmung des Gehäuses 19. Wie die
Innenseitig an dem Käfig 17 ist eine um die Drehachse D umlaufende ringförmige Lagerfläche 26 vorgesehen. Die Lagerfläche 26 weist in Richtung der Streben 21 bis 23. Aus der Lagerfläche 26 erstreckt sich eine Vielzahl an Lagerabschnitten 27, 28 heraus. In der
Die Lagerabschnitte 27, 28 erstrecken sich dabei in Richtung der Streben 21 bis 23. Die Lagerabschnitte 27, 28 sind radial von der Drehachse D beabstandet. Das heißt, die Lagerabschnitte 27, 28 sind in einer Radialrichtung R (
Das in der
Mit Hilfe der Laufschaufeln 32 bis 34 kann das Kreiselelement 18 bei einer Beaufschlagung desselben mit der Spülflotte und/oder dem Frischwasser F in Rotation um die Drehachse D versetzt werden. Die Laufschaufeln 32 bis 34 können, wie in der
Die Laufschaufeln 32 bis 34 sind weiterhin auch in der Radialrichtung R betrachtet bogenförmig gekrümmt oder geschwungen. Die Laufschaufeln 32 bis 34 sind mit Hilfe eines um das Kreiselelement 18 umlaufenden Verbindungsrings 35 miteinander verbunden. Der Verbindungsring 35 ist in der Radialrichtung R betrachtet beabstandet von der Drehachse D und vollständig um diese umlaufend vorgesehen. Der Verbindungsring 35 umfasst oberseitig eine ringförmig und um die Drehachse D vollständig umlaufende Lagerfläche 36, die dazu eingerichtet ist, im Betrieb der Sprüheinrichtung 15 an den Lagerabschnitten 27, 28 des Käfig 17 anzuliegen. Das heißt, das Kreiselelement 18 ist mit Hilfe der Lagerfläche 36 drehbar in dem Käfig 17 gelagert.The
Unterseitig, das heißt, der Lagerfläche 36 abgewandt, sind an dem Verbindungsring 35 mehrere, beispielsweise drei, Abstützabschnitte 37, 38 vorgesehen, mit deren Hilfe das Kreiselelement 18 auf dem Gehäuse 19 aufliegen kann. Zwischen zwei benachbarten Abstützabschnitten 37, 38 ist ein Zwischenraum 39 vorgesehen. Das Kreiselelement 18 ist wie der Käfig 17 ein Kunststoffspritzgussbauteil.On the underside, i.e. facing away from the bearing
Nun zurückkehrend zu der
Die Düse 41 ist vorzugsweise rotationssymmetrisch zu der Drehachse D ausgebildet. Alternativ kann die Düse 41 auch asymmetrisch zu der Drehachse D ausgebildet sein und/oder relativ zu dieser versetzt angeordnet sein. Vorzugsweise ist die Düse 41 jedoch mittig unter der Nabe 30 des Kreiselelements 18 positioniert. Das Kreiselelement 18 kann bezüglich einer Schwerkraftrichtung g oberhalb oder unterhalb der Düse 41 angeordnet sein. In der Orientierung der
Die Funktionalität der Sprüheinrichtung 15 wird nachfolgend erläutert. Über die Zuleitung 40 wird der Düse 41 Spülflotte und/oder Frischwasser F zugeführt. Die Spülflotte und/oder das Frischwasser F wird mit Hilfe der Düse 41 mittig auf die Nabe 30 aufgedüst. Hierdurch wird das Kreiselelement 18 von dem Gehäuse 19 abgehoben, so dass die Abstützabschnitte 37, 38 nicht mehr in Kontakt mit dem Gehäuse 19 sind. Ein axiales Lagerspiel 42 zwischen der Lagerfläche 36 und den Lagerabschnitten 27, 28 wird in einer Axialrichtung AR betrachtet derart verringert, dass die Lagerfläche 26 an den Lagerabschnitten 27, 28 des Käfigs 17 anliegt. Es wird somit eine Lagerung des Kreiselelements 18 an dem Käfig 17 in der Axialrichtung AR verwirklicht.The functionality of the
Über die kegelförmige Mantelfläche 31 der Nabe 30 wird die Spülflotte und/oder das Frischwasser F in der Radialrichtung R nach außen weggeleitet und zumindest teilweise den Laufschaufeln 32 bis 34 zugeführt. Hierdurch gerät das Kreiselelement 18, wie zuvor erwähnt, in Rotation, wie in der
Je nach Anwendungsfall kann die Mantelfläche 31 der Nabe 30 frei gestaltet werden, so dass diese beispielsweise eine flachere oder steilere Spitze aufweist. Dabei kann auch durch die Rotationsgeschwindigkeit des Kreiselelements 18 ein Sprühwinkel β eines Sprühstrahls beziehungsweise ein Sprühbilds beeinflusst werden. Je höher die Rotationsgeschwindigkeit, desto flacher ist der Sprühwinkel β. Der Neigungswinkel α der Laufschaufeln 32 bis 34 ist frei wählbar und kann je nach gefordertem Antriebsmoment angepasst werden.Depending on the application, the
In der Axialrichtung AR weist die Lagerung des Kreiselelements 18 in dem Käfig 17 das zuvor erwähnte Lagerspiel 42 auf. Ein ebensolches Lagerspiel ist auch in der Radialrichtung R vorgesehen. Die Lagerung in der Axialrichtung AR erfolgt dabei über die Lagerfläche 36 und die Lagerabschnitte 27, 28 des Käfigs 17. Schmutzpartikel können dabei zwischen den Lagerabschnitten 27, 28 durch die Zwischenräume 29 strömen. Hierdurch kann es zu keinem Verklemmen aufgrund von Schmutzpartikeln kommen. Die Lagerung in der Radialrichtung und die Zentrierung erfolgt über die durch die Düse 41 aufgedüste Spülflotte und/oder das Frischwasser F.In the axial direction AR, the mounting of the
Die Sprüheinrichtung 15 weist gegenüber bekannten Sprüheinrichtungen eine Vielzahl an Vorteilen auf. Durch eine entsprechende Auslegung der Mantelfläche 31 der Nabe 30 und des Neigungswinkels α der Laufschaufeln 32 bis 34 ist ein frei definierbares Sprühbild erreichbar. Es kann ein minimaler Totbereich erzielt werden. Dies verbessert die Reinigungsleistung. Die Funktonalität der Sprüheinrichtung 15 ist von einem Benutzer klar ersichtlich und der Mehrwert einfach verständlich. Die Sprüheinrichtung 15 ist verschmutzungsresistent durch ein entsprechendes Lagerspiel sowohl in der Axialrichtung AR als auch in der Radialrichtung R. Durch das Vorsehen der Zwischenräume 29 zwischen den Lagerabschnitten 27, 28 kann ein Verklemmen des Kreiselelements 18 im Käfig 17 aufgrund von Schmutzpartikeln verhindert werden. Die Schmutzpartikel können durch die Zwischenräume 29 gespült werden. Bei einer Blockade des Kreiselelements 18 ist dennoch ein sehr gutes Notlaufverhalten gegeben.The
Es ergibt sich eine sehr geringe Bauhöhe der Sprüheinrichtung 15. Hierdurch kann die Sprüheinrichtung 15 auch unterhalb der Spülgutaufnahmen 12 bis 14, beispielsweise zum Verwirklichen der Intensivspülzone 16, angebracht werden. Die Sprüheinrichtung 15 ist ferner auch für die Medien Luft oder Dampf nutzbar. Durch die außen liegende Lagerung kann ein homogenes Sprühbild nahezu ohne Sprühschatten, insbesondere im Bereich der Nabe 30, erreicht werden. Ferner ist bei dieser Art der Lagerung ein Ausweichen des Kreiselelements 18 bei größeren Schmutzpartikeln möglich. Hierdurch wird zuverlässig ein Verstopfen oder Verklemmen der Sprüheinrichtung 15 aufgrund von zwischen der Nabe 30 und der Düse 41 verklemmten Schmutzpartikeln verhindert.The result is a very low overall height of the
Obwohl die vorliegende Erfindung anhand von Ausführungsbeispielen beschrieben wurde, ist sie vielfältig modifizierbar. Die Erfindung ist durch die Ansprüche definiert.Although the present invention has been described using exemplary embodiments, it can be modified in many ways. The invention is defined by the claims.
- 11
- Haushalts-Geschirrspülmaschinedomestic dishwasher
- 22
- Spülbehälterflush tank
- 33
- Türdoor
- 44
- Spülraumdishwashing room
- 55
- Schwenkachsepivot axis
- 66
- Beschickungsöffnungloading opening
- 77
- BodenFloor
- 88th
- DeckeCeiling
- 99
- Rückwandback panel
- 1010
- SeitenwandSide wall
- 1111
- SeitenwandSide wall
- 1212
- Spülgutaufnahmeitems to be washed
- 1313
- Spülgutaufnahmeitems to be washed
- 1414
- Spülgutaufnahmeitems to be washed
- 1515
- Sprüheinrichtungspray device
- 1616
- Intensivspülzoneintensive rinse zone
- 1717
- KäfigCage
- 1818
- Kreiselelementgyro element
- 1919
- GehäuseHousing
- 2020
- Lagerringbearing ring
- 2121
- Strebestrut
- 2222
- Strebestrut
- 2323
- Strebestrut
- 2424
- Schnapphakensnap hook
- 2525
- Schnapphakensnap hook
- 2626
- Lagerflächestorage area
- 2727
- Lagerabschnittstorage section
- 2828
- Lagerabschnittstorage section
- 2929
- Zwischenraumspace
- 3030
- Nabehub
- 3131
- Mantelflächelateral surface
- 3232
- Laufschaufelblade
- 3333
- Laufschaufelblade
- 3434
- Laufschaufelblade
- 3535
- Verbindungsringconnecting ring
- 3636
- Lagerflächestorage area
- 3737
- Abstützabschnittsupport section
- 3838
- Abstützabschnittsupport section
- 3939
- Zwischenraumspace
- 4040
- Zuleitungsupply line
- 4141
- Düsejet
- 4242
- Lagerspielbearing clearance
- 4343
- PfeilArrow
- AA
- Auszugsrichtungpull direction
- ARAR
- Axialrichtungaxial direction
- DD
- Drehachseaxis of rotation
- EE
- Einschubrichtunginsertion direction
- Ff
- Spülflotte und/oder Frischwasserwashing-up liquid and/or fresh water
- gG
- Schwerkraftrichtungdirection of gravity
- RR
- Radialrichtungradial direction
- αa
- Neigungswinkeltilt angle
- ββ
- Sprühwinkelspray angle
Claims (8)
- Household dishwasher (1) comprising a washing compartment (2) and at least one spray device (15) that is arranged inside said washing compartment (2) and is intended to spray washing liquor and/or clean water (F) within the washing container (2), wherein the spray device (15) comprises a cage (17) and a rotary element (18) that is mounted in said cage (17) so as to rotate about an axis of rotation (D), wherein said rotary element (18) comprises a bearing surface (36) which is radially distanced from the axis of rotation (D) and extends around same, and with the aid of which said rotary element (18) is mounted rotatably in the cage (17), wherein the cage (17) has a plurality of bearing portions (27, 28), the bearing surface (36) bearing thereagainst during the operation of the spray device (15), and wherein in each case an intermediate space (29) is provided between two adjacent bearing portions (27, 28).
- Household dishwasher according to claim 1, characterised in that the cage (17) comprises a bearing ring (20) circulating around the axis of rotation (D), the bearing portions (27, 28) being provided thereon.
- Household dishwasher according to claims 1 or 2, further comprising a nozzle (41) for supplying the washing liquor and/or the clean water (F) to the rotary element (18), wherein the nozzle (41) is designed to inject the washing liquor and/or the clean water (F) centrally onto the rotary element (18).
- Household dishwasher according to one of claims 1 - 3, characterised in that the rotary element (18) comprises rotor blades (32 - 34) and a connecting ring (35) which circulates around the axis of rotation (D) and which connects the rotor blades (32 - 34) together, wherein the bearing surface (36) is provided on the connecting ring (35).
- Household dishwasher according to claim 4, characterised in that the rotary element (18) comprises a hub (30) which is connected to the rotor blades (32 - 34), wherein the hub (30) is designed to supply the washing liquor and/or the clean water (F) to the rotor blades (32 - 34) during the operation of the spray device (15).
- Household dishwasher according to claim 5, characterised in that the hub (30) is constructed rotationally symmetrically to the axis of rotation (D) and has an at least partially conical envelope surface (31).
- Household dishwasher according to one of claims 4 - 6, characterised in that the rotor blades (32 - 34) are inclined at an angle of inclination (α) relative to the axis of rotation (D).
- Household dishwasher according to one of claims 1 - 7, characterised in that the cage (17) is curved, in particular curved in a spherical cap-shaped manner.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018206443.1A DE102018206443B4 (en) | 2018-04-26 | 2018-04-26 | domestic dishwasher |
PCT/EP2019/060373 WO2019206913A1 (en) | 2018-04-26 | 2019-04-23 | Domestic dishwasher having a spray device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3784107A1 EP3784107A1 (en) | 2021-03-03 |
EP3784107B1 true EP3784107B1 (en) | 2023-06-07 |
Family
ID=66554321
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19724355.3A Active EP3784107B1 (en) | 2018-04-26 | 2019-04-23 | Household dishwasher with spraying device |
Country Status (6)
Country | Link |
---|---|
US (1) | US11311170B2 (en) |
EP (1) | EP3784107B1 (en) |
CN (1) | CN112040828B (en) |
DE (1) | DE102018206443B4 (en) |
PL (1) | PL3784107T3 (en) |
WO (1) | WO2019206913A1 (en) |
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US11759087B2 (en) | 2020-10-14 | 2023-09-19 | Whirlpool Corporation | Dishwasher paddle wheel assembly |
CN112704450A (en) * | 2020-12-31 | 2021-04-27 | 佛山市顺德区美的洗涤电器制造有限公司 | Cleaning method and device, processor and cleaning equipment |
USD1026361S1 (en) * | 2022-02-11 | 2024-05-07 | Whirlpool Corporation | Wash system for a dish treating appliance |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
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US1916806A (en) | 1931-04-20 | 1933-07-04 | George H Myrick | Washing machine |
JP4061571B2 (en) | 2002-02-06 | 2008-03-19 | Toto株式会社 | Water discharge device |
CH702240B1 (en) | 2002-07-18 | 2011-05-31 | V Zug Ag | Dishwasher with spray. |
KR101238135B1 (en) | 2005-12-12 | 2013-02-28 | 엘지전자 주식회사 | A dish washer |
DE102007017114A1 (en) | 2007-04-11 | 2008-10-16 | BSH Bosch und Siemens Hausgeräte GmbH | Roof spray system for dishwashers |
US8282741B2 (en) * | 2008-08-19 | 2012-10-09 | Whirlpool Corporation | Sequencing spray arm assembly for a dishwasher |
CN201505114U (en) | 2009-10-15 | 2010-06-16 | 美的集团有限公司 | Spraying arm of dish washing machine |
ES2733209T3 (en) * | 2012-06-25 | 2019-11-28 | Candy Spa | An auxiliary spray device for dishwashers |
JP6115139B2 (en) * | 2013-01-11 | 2017-04-19 | セイコーエプソン株式会社 | Liquid ejecting apparatus and maintenance method |
US20150102127A1 (en) | 2013-10-10 | 2015-04-16 | General Electric Company | Spray assembly for a dishwasher appliance |
AU2013407839B2 (en) * | 2013-12-20 | 2019-04-18 | Electrolux Appliances Aktiebolag | Arrangement for providing a wash zone |
KR102061527B1 (en) * | 2013-12-31 | 2020-01-02 | 삼성전자주식회사 | Dish washing machine and controlling method thereof |
CN204723008U (en) * | 2015-04-22 | 2015-10-28 | 佛山市顺德区美的洗涤电器制造有限公司 | For dish-washing machine spray arm assembly and there is its dish-washing machine |
DE102015207588A1 (en) * | 2015-04-24 | 2016-10-27 | BSH Hausgeräte GmbH | Spray arm assembly and dishwasher |
DE102015207582B4 (en) * | 2015-04-24 | 2024-07-25 | BSH Hausgeräte GmbH | Spray arm and dishwasher |
DE102017112026A1 (en) * | 2016-06-20 | 2017-12-21 | Miele & Cie. Kg | Spraying device and nozzle device for a household appliance, household appliance and method for operating a spraying device for a household appliance |
WO2018113912A1 (en) | 2016-12-20 | 2018-06-28 | Electrolux Appliances Aktiebolag | Washing liquid distrubution device for a dishwasher |
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2018
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2019
- 2019-04-23 WO PCT/EP2019/060373 patent/WO2019206913A1/en active Application Filing
- 2019-04-23 PL PL19724355.3T patent/PL3784107T3/en unknown
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- 2019-04-23 US US17/047,078 patent/US11311170B2/en active Active
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WO2019206913A1 (en) | 2019-10-31 |
CN112040828A (en) | 2020-12-04 |
PL3784107T3 (en) | 2023-09-25 |
US20210145243A1 (en) | 2021-05-20 |
EP3784107A1 (en) | 2021-03-03 |
US11311170B2 (en) | 2022-04-26 |
DE102018206443B4 (en) | 2022-02-03 |
CN112040828B (en) | 2024-04-19 |
DE102018206443A1 (en) | 2019-10-31 |
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