EP0962181A2 - Geschirrspülmaschine mit einem rotierbaren Sprüharm - Google Patents
Geschirrspülmaschine mit einem rotierbaren Sprüharm Download PDFInfo
- Publication number
- EP0962181A2 EP0962181A2 EP99108130A EP99108130A EP0962181A2 EP 0962181 A2 EP0962181 A2 EP 0962181A2 EP 99108130 A EP99108130 A EP 99108130A EP 99108130 A EP99108130 A EP 99108130A EP 0962181 A2 EP0962181 A2 EP 0962181A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- spray arm
- dishwasher according
- dishwasher
- spray
- angular position
- 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.)
- Granted
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Classifications
-
- 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
- A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
- A47L15/22—Rotary spraying devices
- A47L15/23—Rotary spraying devices moved by means of the sprays
Definitions
- the invention relates to a dishwasher with a rotatable spray arm according to the preamble of claim 1.
- a dishwasher of this type is from the DE 36 27 813 C2 known. Inside is a sprayer with a two-bladed spray arm, which in one Dishwasher container is arranged. The spray arm is in is rotatably mounted on a horizontal plane and is used in the washing mode via a pipeline system with pressure Flushing liquid loaded. The spray arm is under a basket arranged, which is horizontally displaceable in Rinsing container is inserted. The spray arm points upwards directed spray openings to the arranged in the crockery basket To be able to apply wash liquid to the wash ware.
- This exit opening can have a drive nozzle arranged at the end of the wing for the spray arm and / or a spray nozzle for spraying one in the extension of the spray arm channel axis arranged metering device for dishwashing detergent.
- An embodiment of the invention provides that the spray arm can be stopped by a braking device.
- This can a permanent magnet coupled to the spray arm Rotation of the spray arm performs a circular movement, and a particularly effective when the spray arm is at rest, switchable electromagnets include.
- the electromagnet is switched on when the flushing operation is finished, whereby he builds up with the help of his magnetic field captures the spray arm as soon as the on it arranged permanent magnet in the effective range of the magnetic Field occurs.
- the spray arm should no longer be there are driven so that capturing the spray arm facilitates is when the spray arm due to inertia just spun out.
- the spray arm is preferably by deliberate removal a device for its drive can be stopped.
- the drive device has, for example, a drive nozzle on, which is effective by loading with rinsing liquid is.
- the spray arm is driven in succession a recoil force acting on the spray arm when the Flushing liquid if necessary tangentially leaves.
- the dishwasher has a position detection device for the angular position of the spray arm includes.
- an exact angular position can be obtained determine where to remove the driving force so that the spray arm is in the appropriate rest position comes to a standstill.
- Angular position of the spray arm using the position detection device one the spray arm with rinsing liquid feeding pump switched off.
- a Double-leaf spray arm on a dish rack in the dishwasher so coupled that the crockery basket has a floor which is in a direction opposite the horizontal Plane is inclined.
- the spray arm is on the crockery basket coupled in such a rotatable manner that during the course of its Rotational movement in any angular position parallel to the floor of the crockery basket.
- This rotating spray arm is assigned exactly one angular position in which one nozzle arranged at one end of a spray arm wing at one lowest point.
- a household dishwasher 1 In a household dishwasher 1 are for arranging of dishes to be washed an upper crockery basket 3 and a lower crockery basket 5 can be moved horizontally by means of rollers 4 arranged.
- Each spray arm 7, 9 has two hollow wings on, which differ from a central storage 15 each perpendicular to the axes of rotation 17, 17 'of Spray arms 7, 9 extend and face each other.
- the axis of rotation 17 'of the lower spray arm 9 is aligned vertically, so that the lower spray arm 9 in a horizontal Plane rotates.
- the axis of rotation 17 of the upper spray arm 7 is on the other hand at an angle ⁇ with respect to the vertical axis arranged so that the rotational movement of the upper Spray arm 7 in a plane inclined to the horizontal plane he follows.
- the bottom of the upper crockery basket 3 is in the Essentially on one to the level of rotation of the upper spray arm 7 parallel plane. This way it is in the upper basket 3 arranged items to be washed almost at every point in the Upper crockery basket 3 arranged on the upper spray arm 7 Spray nozzles 11 equally spaced.
- the spray arms 7, 9 each comprise a drive nozzle 13, which are arranged at one end of the spray arms 7, 9 and generate a spray jet with a tangential component.
- the upper spray arm 7 can be stopped in the position in which the drive nozzle 13 assumes its lowest position in the course of its rotational movement.
- the spray arm 7 is stopped by deliberately switching off a circulation pump which supplies the spray arm 7 with rinsing liquid.
- the circulation pump is switched off in a targeted manner, it is taken into account that the spray arm 7, after the drive has been removed by the flushing liquid expelled from the drive nozzle 13, still exerts about half a revolution due to its inertia. Therefore, the circulation pump is switched off at the point in time at which the spray arm 7 is in the corresponding angular position.
- a permanent magnet 19 is arranged on the spray arm 7 on the side opposite the drive nozzle 13.
- the permanent magnet 19 rotates with the spray arm 7 and thus generates a corresponding moving magnetic field.
- the magnetic field of the permanent magnet 19 is analyzed by evaluation electronics 21 arranged on the washing container of the dishwasher 1. If the strongest magnetic field is determined by the evaluation electronics 21, the permanent magnet 19 is located at a short distance from the evaluation electronics 21 during its rotational movement. In this way, a precise angular position of the spray arm 7 is determined at a specific time t 0 .
- the permanent magnet 19 is at the time t 1 again determines the speed of the spray arm 7 in the shortest distance to the transmitter 21, so, by the difference of the times t 1 and t 0th
- the angular position of the spray arm 7 can be determined at any time t. This then enables the circulation pump to be switched off at a time when the spray arm 7 is in the angular position from which it is then moved into the desired rest position depending on its inertia and the friction of its bearing 15.
- the drive nozzle 13 In this rest position of the spray arm 7, the drive nozzle 13 is in its lowest position, so that the amount of residual water in the spray arm 7 can run out almost completely.
- an emptied upper spray arm 7 cannot then allow any washing liquid to drip onto the dried washware arranged below it.
Landscapes
- Washing And Drying Of Tableware (AREA)
Abstract
Description
- Fig. 1
- eine Haushalts-Geschirrspülmaschine mit darin angeordneten Geschirrkörben und Sprüharmen; und
- Fig. 2
- den oberen Geschirrkorb gemäß Fig. 1 in der Querschnittdarstellung.
Der obere Sprüharm 7 ist in der Stellung anhaltbar, in der die Antriebsdüse 13 ihre tiefste Position im Verlauf ihrer Drehbewegung einnimmt. Das Anhalten des Sprüharmes 7 erfolgt durch ein gezieltes Abschalten einer den Sprüharm 7 mit Spülflüssigkeit versorgenden Umwälzpumpe. Bei diesem gezielten Abschalten der Umwälzpumpe wird berücksichtigt, daß der Sprüharm 7 nach der Wegnahme des Antriebes durch die an der Antriebsdüse 13 ausgestoßene Spülflüssigkeit noch ca. eine halbe Umdrehung durch seine Massenträgheit ausübt. Daher erfolgt das Abschalten der Umwälzpumpe zu dem Zeitpunkt, an dem der Sprüharm 7 sich in der entsprechenden Winkelstellung befindet.
Claims (11)
- Geschirrspülmaschine mit einem rotierbaren Sprüharm zum Beaufschlagen von Spülgutteilen mit einer Spülflüssigkeit, wobei der Sprüharm wenigstens einen hohlen Flügel, durch den die Spülflüssigkeit durchleitbar ist, und mindestens eine am Flügel angeordnete Austrittsöffnung für die Spülflüssigkeit aufweist, und wobei der Sprüharm in eine Ruhestellung versetzbar ist, in welcher eine im Sprüharm zurückbleibende Restflüssigkeitsmenge wenigstens teilweise abläuft, dadurch gekennzeichnet, daß der Sprüharm (7) während seiner Rotationsbewegung wenigstens eine Winkelstellung aufweist, in welcher er gegenüber einer horizontalen Ebene geneigt ist, und daß der Sprüharm (7) in dieser Winkelstellung anhaltbar ist.
- Geschirrspülmaschine nach Anspruch 1, dadurch gekennzeichnet, daß der Sprüharm (7) eine Austrittsöffnung (13) aufweist, die in der Ruhestellung des Sprüharmes (7) an der tiefsten Stelle des Sprüharmkanales angeordnet ist.
- Geschirrspülmaschine nach Anspruch 2, dadurch gekennzeichnet, daß die Austrittsöffnung (13) eine am Ende eines Sprüharmflügels angeordnete Antriebsdüse für den Sprüharm (7) ist.
- Geschirrspülmaschine nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Austrittsöffnung (13) eine Sprühdüse zum Besprühen einer in der Verlängerung der Sprüharm-Kanalachse angeordneten Dosiereinrichtung für Geschirrspülmittel ist.
- Geschirrspülmaschine nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Sprüharm (7) durch eine Bremsvorrichtung anhaltbar ist.
- Geschirrspülmaschine nach Anspruch 5, dadurch gekennzeichnet, daß die Bremsvorrichtung einen am Sprüharm (7) angekoppelten Dauermagnet und einen in der Ruhestellung des Sprüharmes (7) besonders wirksamen, zuschaltbaren Elektromagnet umfaßt.
- Geschirrspülmaschine nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Sprüharm (7) durch gezieltes Wegnehmen einer Einrichtung für seinen Antrieb anhaltbar ist.
- Geschirrspülmaschine nach Anspruch 7, dadurch gekennzeichnet, daß die Antriebseinrichtung eine Antriebsdüse (13) ist, welche durch Beschicken mit Spülflüssigkeit wirksam ist.
- Geschirrspülmaschine nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß eine Positionserkennungsvorrichtung (19, 21) umfaßt ist, die die Winkelstellung des Sprüharmes (7) während seiner Rotationsbewegung erkennt.
- Geschirrspülmaschine nach Anspruch 9, dadurch gekennzeichnet, daß bei Erkennen einer vordefinierten Winkelstellung des Sprüharmes (7) eine den Sprüharm (7) mit Spülflüssigkeit beschickende Umwälzpumpe ausschaltbar ist.
- Geschirrspülmaschine nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß der Sprüharm (7) zweiflüglig und an einem Geschirrkorb (3) der Geschirrspülmaschine angekoppelt ist, daß der Geschirrkorb (3) einen Boden aufweist, der in einer Richtung gegenüber einer horizontalen Ebene geneigt ist, und daß der Sprüharm (7) derart rotierbar angekoppelt ist, daß er in jeder Winkelstellung parallel zum Boden des Geschirrkorbes (3) ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19824824A DE19824824C2 (de) | 1998-06-04 | 1998-06-04 | Geschirrspülmaschine mit einem rotierbaren Sprüharm |
DE19824824 | 1998-06-04 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0962181A2 true EP0962181A2 (de) | 1999-12-08 |
EP0962181A3 EP0962181A3 (de) | 2000-09-27 |
EP0962181B1 EP0962181B1 (de) | 2004-07-07 |
Family
ID=7869793
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99108130A Expired - Lifetime EP0962181B1 (de) | 1998-06-04 | 1999-04-24 | Geschirrspülmaschine mit einem rotierbaren Sprüharm |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0962181B1 (de) |
DE (2) | DE19824824C2 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016096019A1 (en) * | 2014-12-18 | 2016-06-23 | Electrolux Appliances Aktiebolag | Dishwasher comprising a spray arm arrangement |
WO2019223961A1 (en) | 2018-05-21 | 2019-11-28 | Arcelik Anonim Sirketi | A dishwasher comprising spray arm |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016217912B3 (de) * | 2016-09-19 | 2018-02-01 | BSH Hausgeräte GmbH | Haushalts-Geschirrspülmaschine |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3333739A (en) * | 1965-06-22 | 1967-08-01 | Whirlpool Co | Material dispensing means for a washing apparatus |
GB1181133A (en) * | 1967-06-20 | 1970-02-11 | Bauknecht Gmbh G | A Dish-Washing Machine |
DE3732451A1 (de) * | 1987-09-25 | 1989-04-20 | Bosch Siemens Hausgeraete | Geschirrspuelmaschine mit einer einrichtung zur ueberwachung der drehbewegung des sprueharmes |
EP0628280A1 (de) * | 1993-06-14 | 1994-12-14 | Stierlen-Maquet Aktiengesellschaft | Spülmaschine mit Vorkehrung zur Verhinderung unerwünschten Abtropfens auf das Reinigungsgut |
-
1998
- 1998-06-04 DE DE19824824A patent/DE19824824C2/de not_active Expired - Fee Related
-
1999
- 1999-04-24 DE DE59909887T patent/DE59909887D1/de not_active Expired - Fee Related
- 1999-04-24 EP EP99108130A patent/EP0962181B1/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3333739A (en) * | 1965-06-22 | 1967-08-01 | Whirlpool Co | Material dispensing means for a washing apparatus |
GB1181133A (en) * | 1967-06-20 | 1970-02-11 | Bauknecht Gmbh G | A Dish-Washing Machine |
DE3732451A1 (de) * | 1987-09-25 | 1989-04-20 | Bosch Siemens Hausgeraete | Geschirrspuelmaschine mit einer einrichtung zur ueberwachung der drehbewegung des sprueharmes |
EP0628280A1 (de) * | 1993-06-14 | 1994-12-14 | Stierlen-Maquet Aktiengesellschaft | Spülmaschine mit Vorkehrung zur Verhinderung unerwünschten Abtropfens auf das Reinigungsgut |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016096019A1 (en) * | 2014-12-18 | 2016-06-23 | Electrolux Appliances Aktiebolag | Dishwasher comprising a spray arm arrangement |
US10194782B2 (en) | 2014-12-18 | 2019-02-05 | Electrolux Appliances Aktiebolag | Dishwasher comprising a spray arm arrangement |
WO2019223961A1 (en) | 2018-05-21 | 2019-11-28 | Arcelik Anonim Sirketi | A dishwasher comprising spray arm |
Also Published As
Publication number | Publication date |
---|---|
DE19824824C2 (de) | 2002-11-14 |
DE19824824A1 (de) | 1999-12-16 |
EP0962181B1 (de) | 2004-07-07 |
EP0962181A3 (de) | 2000-09-27 |
DE59909887D1 (de) | 2004-08-12 |
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