EP2117410B1 - Dishwasher machine comprising a water point on the pump pressure side - Google Patents

Dishwasher machine comprising a water point on the pump pressure side Download PDF

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Publication number
EP2117410B1
EP2117410B1 EP08707207A EP08707207A EP2117410B1 EP 2117410 B1 EP2117410 B1 EP 2117410B1 EP 08707207 A EP08707207 A EP 08707207A EP 08707207 A EP08707207 A EP 08707207A EP 2117410 B1 EP2117410 B1 EP 2117410B1
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EP
European Patent Office
Prior art keywords
drive
dishwasher
blocking element
electric motor
recirculation pump
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.)
Not-in-force
Application number
EP08707207A
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German (de)
French (fr)
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EP2117410A1 (en
Inventor
Walter Assmann
Seyfettin Kara
Volker Marks
Stefan Tiekötter
Cornelius Wolf
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Miele und Cie KG
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Miele und Cie KG
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Publication of EP2117410A1 publication Critical patent/EP2117410A1/en
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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
    • A47L15/42—Details
    • A47L15/4289—Spray-pressure measuring or regulating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0016—Control, e.g. regulation, of pumps, pumping installations or systems by using valves mixing-reversing- or deviation valves

Definitions

  • the present invention relates to a dishwasher with spray arms, comprising a circulation pump driven by an electric motor and a water pump provided on the pump pressure side for producing a flow from an inlet to at least one of a plurality of selectable outlets associated with the spray arms, the water separator being at least one Blocking element has, which is positionable by a drive device in at least two Auslenfinen, and wherein the water separator has a drive element for moving the blocking element, which is driven together with the electric motor of the circulating pump.
  • a dishwasher known in which a plurality of spray arms are provided in a washing room, which are supplied via a circulation pump with cleaning liquid.
  • a water switch is provided, which ensures that only a part of the spray arms is in operation, so that the water consumption is minimized.
  • a separate electric motor is used to move the blocking element.
  • the water switch is provided with mechanical or electrical sensors which act on the program control of the device or the drive control. The control of such water switches requires on the electronic device control a switching output for controlling the drive and at least one input for signal detection of a position sensor. Simple device controllers usually do not have enough switching outputs and signal inputs to operate the known water switches can.
  • the drive element is driven together with the electric motor of the circulation pump. This eliminates the need to provide a separate control output and a sensor for the drive motor of the water switch.
  • a transmission is arranged between the drive element and the blocking element, which converts a continuous movement of the drive element into an intermittent discontinuous movement of the blocking element.
  • An expedient structure of such a transmission includes a star gear.
  • the drive element is mechanically coupled to the electric motor of the circulation pump.
  • the electric drive of the circulation pump for several functions is used simultaneously.
  • the drive element has its own electric drive, said drive is energized in parallel with the electric motor of the circulation pump controlled by the device control.
  • Dishwasher 1 shown has a designated 2 rinse tank, which opens into a collecting pot 3 in the lower area. From there, the accumulated liquid is fed via an intake 4 of a circulating pump 5, which in the FIGS. 2 and 3 is shown as a detail.
  • a circulating pump 5 which in the FIGS. 2 and 3 is shown as a detail.
  • two baskets 6 and 7 and a cutlery drawer 8 are arranged, which serve to hold the corresponding items to be washed.
  • the cutlery and crockery not shown in the drawings are irrigated by rotary spray arms 9 to 11, of which two baskets 6 and 7 and the drawer 8 each associated with a cleaning liquid.
  • the circulation pump 5 has three separate discharge nozzles 12 to 14, which are connected via Sprüharmzutechnisch 15 to 17 with the respective spray arm 9, 10 or 11 in combination.
  • the lower basket 6 associated spray arm 9 is supplied via the discharge nozzle 12 and the upper basket spray arm 10 via the discharge nozzle 13 with rinsing or cleaning liquid.
  • the upper installed on the Spipporaumdecke 2.1 spray arm 11 of the discharge nozzle 14 leads to liquid.
  • the spray arms 9 and 11 are operated in alternation to the spray arm 10.
  • the switching between the spray arms causes a water switch 18, which, as in FIG. 1 indicated in the circulation pump 5 is integrated.
  • a cup-shaped locking element 20 (see FIG. 3 ) arranged in the pump chamber 19.
  • the rotatably mounted blocking element 20 is provided on its cylindrical wall 21 with a plurality of apertures 22 and movable closure elements 23 with valve function. Is an aperture 22 in front of a discharge nozzle, as in the FIG. 3 shown for the nozzle 13, this is unlocked and the spray arm 10 is supplied with liquid.
  • closure elements 23 are arranged so that these nozzles are blocked and the corresponding spray arms 9 and 11 are not acted upon with liquid.
  • the blocking element 20 is rotated by about 60 ° counterclockwise, thereby the nozzle 12 and 14 are released (apertures 22 are located in front of the nozzle 12 and 14) and nozzle 13 is blocked (closure member 23 is located in front of the nozzle 13) ,
  • the partial rotation of the locking element 20 takes about 5 seconds. This State is held again for 30 seconds, after which the blocking element 20 is turned back in the clockwise direction to the position described first.
  • the locking element 20 has this on a part of its bottom-side edge 24 has a toothing 25 (see in particular FIG. 7 ), in which a likewise provided with a partial toothing 26 pinion 27 engages (see FIG. 4 ).
  • the pinion 27 is connected via a crank mechanism, consisting of the connecting rod 28 and the lever 29, with the output gear 30 of a star gear.
  • the drive wheel 31 of the star wheel is in the in FIG. 4 illustrated embodiment rotated by its own electric drive 32. This is energized in parallel with the electric motor 33 of the circulation pump 5 controlled by the device control 34.
  • the controller 34 is in FIG. 1 symbolically represented as a box, the parallel control is symbolized by a common control line 35.
  • a mechanical coupling not shown in the drawings, to the electric motor 33 of the circulating pump is possible. It is only important that the energization of the drive via a single output of the controller 34 is possible.
  • the drive wheel 31 of the planetary gear has a circular arc-shaped guide web 36 as idle track and a partial toothing 37, flanked on both sides by catch pin 38.
  • the output gear consists of tooth sections 39 and guide mouths 40, which alternate, in the embodiment shown two each.
  • the transition from a tooth path 39 to a guide mouth 40 is formed on each side by a catch claw 41, of which a total of four are present.
  • Below a guide jaw 40 and thus eccentrically a pin 42 is formed on the output gear 30, which is inserted into a bore 43 of the connecting rod 28 with play and therefore rotatable.
  • FIGS. 5 to 7 show the drive wheel 31 of the star gear in different positions.
  • FIG. 5 it is in disengaged position with the output gear 30, while running the lower guide jaw 40.1 on the guide web 36.
  • the drive wheel 31 rotates by the electric drive 32 continuously in a clockwise direction, the direction of rotation for the function of the arrangement shown is not relevant.
  • the fishing claw 41.1 engages with the catch pin 38.1.
  • the left tooth section 39.1 is rotated onto the partial toothing 37 and the teeth mesh with one another. This results in a movement phase with a rotational movement of the output gear 30, which in turn the pin together with the connecting rod 28 down in the in FIG.
  • the connecting rod 28 pushes the lever 29 from the 11 o'clock position ( Figures 5 and 6 ) in the 7 o'clock position, causing the pinion 27 to rotate.
  • the pinion 27 meshes with its teeth the teeth of the blocking element 20 and rotates it clockwise about 60 degrees as described above.
  • the catch claw 41.2 engages in the catch pin 38.2 and turns the upper guide jaw 40.2 on the guide bar.
  • the movement phase of the output gear 30 ends with it and the blocking element 20 remains in the position assumed for the period in which the guide jaw 40.2 slides on the guide web 36 again.
  • the above-described engagement of the catch claw 41 in the catch 38, etc. repeated, in which case the connecting rod 28 together with the lever 29 is pulled up again and thus the locking element 20 is rotated counterclockwise.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Washing And Drying Of Tableware (AREA)

Abstract

The invention relates to a dishwasher machine (1) comprising spray arms (9 to 11), a recirculation pump (5) which is driven by an electric motor (33), and a water point provided on the pump pressure side and used to produce a flow from an inlet (4) to at least one outlet (12 to 14) selected from several and associated with the spray arms (9 to 11). The water point comprises at least one blocking element (20) and a drive element for moving the at least one blocking element (20) which is driven together with the electric motor (33) of the recirculation pump (5). A simple water point drive is achieved in such a dishwasher (1) by mounting a transmission between the drive element and the blocking element (20), said transmission converting a continuous movement of the drive element into a discontinuous movement of the blocking element (20).

Description

Die vorliegende Erfindung betrifft eine Geschirrspülmaschine mit Sprüharmen, mit einer Umwälzpumpe, welche durch einen Elektromotor angetrieben ist, und mit einer pumpendruckseitig vorgesehenen Wasserweiche zur Herstellung eines Durchflusses von einem Einlass auf mindestens einen von mehreren wählbaren, den Sprüharmen zugeordneten Auslässen, wobei die Wasserweiche mindestens ein Sperrelement besitzt, welches durch eine Antriebsvorrichtung in mindestens zwei Auslassstellungen positionierbar ist, und wobei die Wasserweiche ein Antriebselement zur Bewegung des Sperrelements besitzt, welches gemeinsam mit dem Elektromotor der Umwälzpumpe angetrieben wird.The present invention relates to a dishwasher with spray arms, comprising a circulation pump driven by an electric motor and a water pump provided on the pump pressure side for producing a flow from an inlet to at least one of a plurality of selectable outlets associated with the spray arms, the water separator being at least one Blocking element has, which is positionable by a drive device in at least two Auslaßstellungen, and wherein the water separator has a drive element for moving the blocking element, which is driven together with the electric motor of the circulating pump.

Aus der WO 03/005875 A1 ist eine Geschirrspülmaschine bekannt, bei der in einem Spülraum mehrere Sprüharme vorgesehen sind, die über eine Umwälzpumpe mit Reinigungsflüssigkeit versorgt werden. Um nicht gleichzeitig alle Sprüharme mit Flüssigkeit versorgen zu müssen, ist eine Wasserweiche vorgesehen, die dafür sorgt, dass nur ein Teil der Sprüharme in Betrieb ist, so dass der Wasserverbrauch minimiert ist. Bei der WO 03/005875 A1 wird zur Bewegung des Sperrelements ein separater Elektromotor eingesetzt. Zur Lagesensierung und/oder Endlagenabschaltung des Sperrelements ist die Wasserweiche mit mechanischen oder elektrischen Sensoren versehen, welche auf die Programmsteuerung des Gerätes bzw. die Antriebssteuerung wirken. Die Ansteuerung derartiger Wasserweichen erfordert auf der elektronischen Gerätesteuerung einen Schaltausgang zur Steuerung des Antriebs und mindestens einen Eingang zur Signalerfassung eines Positionssensors. Einfach aufgebaute Gerätesteuerungen besitzen in der Regel nicht genügend Schaltausgänge und Signaleingänge, um die bekannten Wasserweichen betreiben zu können.From the WO 03/005875 A1 is a dishwasher known in which a plurality of spray arms are provided in a washing room, which are supplied via a circulation pump with cleaning liquid. In order not to supply all the spray arms with liquid at the same time, a water switch is provided, which ensures that only a part of the spray arms is in operation, so that the water consumption is minimized. In the WO 03/005875 A1 a separate electric motor is used to move the blocking element. For position detection and / or end position of the blocking element, the water switch is provided with mechanical or electrical sensors which act on the program control of the device or the drive control. The control of such water switches requires on the electronic device control a switching output for controlling the drive and at least one input for signal detection of a position sensor. Simple device controllers usually do not have enough switching outputs and signal inputs to operate the known water switches can.

In der WO 03/005875 A1 ist alternativ eine Ausführungsform beschrieben, bei der der Pumpenmotor, insbesondere das Pumpenlaufrad der Umwälzpumpe, als Antriebsvorrichtung verwendet wird. Aus spültechnischen Gründen ist eine permanent verfahrende Wasserweiche von Nachteil, weil ein zu schneller Wechsel zwischen oberem und unterem Sprüharm das Reinigungsergebnis verschlechtert. In herkömmlichen Waschmaschinen, welche mit einer Wasserweiche mit schaltbarem Antriebsmotor ausgestattet sind, ist ein Wechsel von 30 Sekunden Verweilzeit bei der jeweiligen Sprüharm-Ansteuerung und 5 Sekunden Verfahrzeit üblich.In the WO 03/005875 A1 Alternatively, an embodiment is described in which the pump motor, in particular the pump impeller of the circulation pump, is used as a drive device. For reasons of rinsing a permanently moving waterway is disadvantageous because too fast a change between the upper and lower spray arm worsens the cleaning result. In conventional washing machines, which are equipped with a water switch with switchable drive motor, a change of 30 seconds dwell time at the respective spray arm drive and 5 seconds travel time is common.

Aus der EP 1 723 888 A1 ist eine Geschirrspülmaschine bekannt, bei der eine der Umwälzpumpe nachgeordnete Wasserweiche durch eine Turbine angetrieben wird. Turbinen können durch Speisereste verstopfen. Ein weiterer Nachteil entsteht dadurch, dass während der ständigen Wechsel mit verringerter Sprühleistung gespült wird. Hierdurch reduziert sich die Reinigungswirkung.From the EP 1 723 888 A1 a dishwashing machine is known in which a water circulation downstream of the circulation pump is driven by a turbine. turbines can clog with food particles. Another disadvantage arises from the fact that is flushed during the constant change with reduced spray power. This reduces the cleaning effect.

Es ist Aufgabe der vorliegenden Erfindung eine Geschirrspülmaschine zu schaffen, die einen einfach aufgebauten Wasserweichen-Antrieb besitzt und trotzdem ein zufriedenstellendes Reinigungsergebnis gewährleistet.It is an object of the present invention to provide a dishwasher, which has a simply constructed water diverter drive and still ensures a satisfactory cleaning result.

Diese Aufgabe wird mit einer Geschirrspülmaschine mit den Merkmalen des Anspruches 1 gelöst.This object is achieved with a dishwasher with the features of claim 1.

Erfindungsgemäß wird das Antriebselement gemeinsam mit dem Elektromotor der Umwälzpumpe angetrieben. Dadurch entfällt die Notwendigkeit, für den Antriebsmotor der Wasserweiche einen separaten Steuerausgang und eine Sensorik vorzusehen. Außerdem ist zwischen dem Antriebselement und dem Sperrelement ein Getriebe angeordnet, welches eine kontinuierliche Bewegung des Antriebselementes in eine intermittierende diskontinuierliche Bewegung des Sperrelementes umsetzt. Ein zweckmäßiger Aufbau eines solchen Getriebes beinhaltet ein Sternradgetriebe.According to the invention, the drive element is driven together with the electric motor of the circulation pump. This eliminates the need to provide a separate control output and a sensor for the drive motor of the water switch. In addition, a transmission is arranged between the drive element and the blocking element, which converts a continuous movement of the drive element into an intermittent discontinuous movement of the blocking element. An expedient structure of such a transmission includes a star gear.

Gemäß einer bevorzugten Ausgestaltung der Erfindung ist das Antriebselement mechanisch an den Elektromotor der Umwälzpumpe gekoppelt. Dadurch wird der elektrische Antrieb der Umwälzpumpe für mehrere Funktionen gleichzeitig genutzt. Es besteht aber auch die Möglichkeit, dass das Antriebselement einen eigenen elektrischen Antrieb besitzt, wobei dieser Antrieb parallel zum Elektromotor der Umwälzpumpe von der Gerätesteuerung gesteuert bestromt wird.According to a preferred embodiment of the invention, the drive element is mechanically coupled to the electric motor of the circulation pump. As a result, the electric drive of the circulation pump for several functions is used simultaneously. But there is also the possibility that the drive element has its own electric drive, said drive is energized in parallel with the electric motor of the circulation pump controlled by the device control.

Zur Einsparung von Bauraum und zusätzlichen Bauteilen ist es außerdem vorteilhaft, wie aus der WO 03/005875 A1 bekannt, das Sperrelement in eine Pumpenkammer der Umwälzpumpe zu integrieren.To save space and additional components, it is also advantageous, as from WO 03/005875 A1 known to integrate the blocking element in a pump chamber of the circulation pump.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispieles mit Bezug auf die beigefügten Zeichnungen näher erläutert. Es zeigen:

Figur 1
eine schematische Darstellung einer Geschirrspülmaschine mit Umwälzpumpe und integrierter Wasserweiche;
Figur 2
die Umwälzpumpe der Geschirrspülmaschine nach Figur 1 in perspektivischer Darstellung;
Figur 3
die geöffnete Umwälzpumpe in der Draufsicht mit der Anordnung des Sperrelements der Wasserweiche in der Pumpenkammer;
Figur 4
eine perspektivische Ansicht des Sperrelements der Wasserweiche samt Antriebsrad und Sternradgetriebe;
Figur 5
eine Detailansicht des Getriebes der Figur 4 mit dem Antriebsrad in Außereingriffsstellung;
Figur 6
eine Detailansicht des Getriebes der Figur 4 mit dem Antriebsrad kurz vor der Eingriffsstellung;
Figur 7
eine Detailansicht des Getriebes der Figur 4 mit dem Antriebsrad kurz nach der Eingriffsstellung.
The invention will be explained in more detail using an exemplary embodiment with reference to the accompanying drawings. Show it:
FIG. 1
a schematic representation of a dishwasher with circulating pump and integrated water separator;
FIG. 2
the circulation pump of the dishwasher after FIG. 1 in perspective view;
FIG. 3
the open circulation pump in plan view with the arrangement of the locking element of the water switch in the pump chamber;
FIG. 4
a perspective view of the locking element of the water distributor including the drive wheel and the star gear;
FIG. 5
a detailed view of the transmission of FIG. 4 with the drive wheel in disengaged position;
FIG. 6
a detailed view of the transmission of FIG. 4 with the drive wheel just before the engagement position;
FIG. 7
a detailed view of the transmission of FIG. 4 with the drive wheel shortly after the engagement position.

Die in Figur 1 dargestellte Geschirrspülmaschine 1 besitzt einen mit 2 bezeichneten Spülbehälter, der im unteren Bereich in einen Sammeltopf 3 mündet. Von dort wird die angesammelte Flüssigkeit über einen Ansaugstutzen 4 einer Umwälzpumpe 5 zugeführt, welche in den Figuren 2 und 3 als Einzelheit dargestellt ist. In dem Spülbehälter 2 sind zwei Geschirrkörbe 6 und 7 und eine Besteckschublade 8 angeordnet, welche zur Halterung des entsprechenden Spülguts dienen. Die in den Zeichnungen nicht dargestellten Besteck- und Geschirrteile werden durch drehbare Sprüharme 9 bis 11, von denen beiden Körben 6 und 7 und der Schublade 8 je einer zugeordnet ist, mit Reinigungsflüssigkeit beregnet. Hierzu besitzt die Umwälzpumpe 5 drei separate Druckstutzen 12 bis 14, die über Sprüharmzuleitungen 15 bis 17 mit dem jeweiligen Sprüharm 9, 10 oder 11 in Verbindung stehen. So wird der dem Unterkorb 6 zugeordnete Sprüharm 9 über den Druckstutzen 12 und der Oberkorb-Sprüharm 10 über den Druckstutzen 13 mit Spül- oder Reinigungsflüssigkeit versorgt. Dem oberen an der Spülraumdecke 2.1 installierten Sprüharm 11 führt der Druckstutzen 14 Flüssigkeit zu.In the FIG. 1 Dishwasher 1 shown has a designated 2 rinse tank, which opens into a collecting pot 3 in the lower area. From there, the accumulated liquid is fed via an intake 4 of a circulating pump 5, which in the FIGS. 2 and 3 is shown as a detail. In the washing container 2, two baskets 6 and 7 and a cutlery drawer 8 are arranged, which serve to hold the corresponding items to be washed. The cutlery and crockery not shown in the drawings are irrigated by rotary spray arms 9 to 11, of which two baskets 6 and 7 and the drawer 8 each associated with a cleaning liquid. For this purpose, the circulation pump 5 has three separate discharge nozzles 12 to 14, which are connected via Sprüharmzuleitungen 15 to 17 with the respective spray arm 9, 10 or 11 in combination. Thus, the lower basket 6 associated spray arm 9 is supplied via the discharge nozzle 12 and the upper basket spray arm 10 via the discharge nozzle 13 with rinsing or cleaning liquid. The upper installed on the Spülraumdecke 2.1 spray arm 11 of the discharge nozzle 14 leads to liquid.

Für wasser- und energiesparenden Spülbetrieb werden die Sprüharme 9 und 11 im Wechsel zum Sprüharm 10 betrieben. Das Umschalten zwischen den Sprüharmen bewirkt eine Wasserweiche 18, welche wie in Figur 1 angedeutet in die Umwälzpumpe 5 integriert ist. Hierzu ist in der Pumpenkammer 19 ein topfförmiges Sperrelement 20 (siehe Figur 3) angeordnet. Das drehbeweglich gelagerte Sperrelement 20 ist auf seiner zylindrischen Wand 21 mit mehreren Blendenöffnungen 22 und beweglichen Verschlusselementen 23 mit Ventilfunktion versehen. Liegt eine Blendenöffnung 22 vor einem Druckstutzen, wie in der Figur 3 für den Stutzen 13 gezeigt, ist dieser freigeschaltet und der Sprüharm 10 wird mit Flüssigkeit versorgt. Vor den Stutzen 12 und 14 sind jeweils Verschlusselemente 23 angeordnet, damit sind diese Stutzen gesperrt und die entsprechenden Sprüharme 9 und 11 werden nicht mit Flüssigkeit beaufschlagt. Nach 30 Sekunden wird das Sperrelement 20 um ca. 60° gegen den Uhrzeigersinn gedreht, dadurch werden die Stutzen 12 und 14 freigegeben (Blendenöffnungen 22 liegen vor den Stutzen 12 und 14) und Stutzen 13 wird gesperrt (Verschlusselement 23 liegt vor dem Stutzen 13). Die Teildrehung des Sperrelements 20 dauert ca. 5 Sekunden. Dieser Zustand wird wieder für 30 Sekunden gehalten, danach wird das Sperrelement 20 im Uhrzeigersinn in die zuerst beschriebene Stellung zurückgedreht.For water and energy-saving flushing the spray arms 9 and 11 are operated in alternation to the spray arm 10. The switching between the spray arms causes a water switch 18, which, as in FIG. 1 indicated in the circulation pump 5 is integrated. For this purpose, in the pump chamber 19, a cup-shaped locking element 20 (see FIG. 3 ) arranged. The rotatably mounted blocking element 20 is provided on its cylindrical wall 21 with a plurality of apertures 22 and movable closure elements 23 with valve function. Is an aperture 22 in front of a discharge nozzle, as in the FIG. 3 shown for the nozzle 13, this is unlocked and the spray arm 10 is supplied with liquid. In front of the nozzle 12 and 14 respectively closure elements 23 are arranged so that these nozzles are blocked and the corresponding spray arms 9 and 11 are not acted upon with liquid. After 30 seconds, the blocking element 20 is rotated by about 60 ° counterclockwise, thereby the nozzle 12 and 14 are released (apertures 22 are located in front of the nozzle 12 and 14) and nozzle 13 is blocked (closure member 23 is located in front of the nozzle 13) , The partial rotation of the locking element 20 takes about 5 seconds. This State is held again for 30 seconds, after which the blocking element 20 is turned back in the clockwise direction to the position described first.

Zum Antrieb des Sperrelements 20 besitzt dieses auf einem Teil seines bodenseitigen Randes 24 eine Verzahnung 25 (siehe insbesondere Figur 7), in die ein ebenfalls mit einer Teilverzahnung 26 versehenes Ritzel 27 eingreift (siehe Figur 4). Das Ritzel 27 ist über einen Kurbeltrieb, bestehend aus dem Pleuel 28 und dem Hebel 29, mit dem Abtriebsrad 30 eines Sternradgetriebes verbunden. Das Antriebsrad 31 des Sternradgetriebes wird in dem in Figur 4 dargestellten Ausführungsbeispiel durch einen eigenen elektrischen Antrieb 32 gedreht. Dieser wird parallel zum Elektromotor 33 der Umwälzpumpe 5 von der Gerätesteuerung 34 gesteuert bestromt. Die Steuerung 34 ist in Figur 1 als Kasten symbolisch dargestellt, die parallele Ansteuerung wird durch eine gemeinsame Steuerleitung 35 symbolisiert. Alternativ ist eine in den Zeichnungen nicht dargestellte mechanische Kopplung an den Elektromotor 33 der Umwälzpumpe möglich. Wichtig ist lediglich, dass die Bestromung des Antriebs über einen einzigen Ausgang der Steuerung 34 möglich ist.To drive the locking element 20 has this on a part of its bottom-side edge 24 has a toothing 25 (see in particular FIG. 7 ), in which a likewise provided with a partial toothing 26 pinion 27 engages (see FIG. 4 ). The pinion 27 is connected via a crank mechanism, consisting of the connecting rod 28 and the lever 29, with the output gear 30 of a star gear. The drive wheel 31 of the star wheel is in the in FIG. 4 illustrated embodiment rotated by its own electric drive 32. This is energized in parallel with the electric motor 33 of the circulation pump 5 controlled by the device control 34. The controller 34 is in FIG. 1 symbolically represented as a box, the parallel control is symbolized by a common control line 35. Alternatively, a mechanical coupling, not shown in the drawings, to the electric motor 33 of the circulating pump is possible. It is only important that the energization of the drive via a single output of the controller 34 is possible.

Das Antriebsrad 31 des Sternradgetriebes besitzt einen kreisbogenförmigen Führungssteg 36 als Leerlaufstrecke und eine Teilverzahnung 37, auf beiden Seiten flankiert von Fangzapfen 38. Das Abtriebsrad besteht aus Zahnstrecken 39 und Führungsmäulern 40, die sich abwechseln, im gezeigten Ausführungsbeispiel je zwei. Der Übergang von einer Zahnstrecke 39 zu einem Führungsmaul 40 wird auf jeder Seite von einer Fangklaue 41 gebildet, von denen also insgesamt vier vorhanden sind. Unterhalb eines Führungsmauls 40 und damit exzentrisch ist ein Zapfen 42 an das Abtriebsrad 30 angeformt, der in eine Bohrung 43 des Pleuels 28 mit Spiel und deshalb rotierbar eingesteckt ist.The drive wheel 31 of the planetary gear has a circular arc-shaped guide web 36 as idle track and a partial toothing 37, flanked on both sides by catch pin 38. The output gear consists of tooth sections 39 and guide mouths 40, which alternate, in the embodiment shown two each. The transition from a tooth path 39 to a guide mouth 40 is formed on each side by a catch claw 41, of which a total of four are present. Below a guide jaw 40 and thus eccentrically a pin 42 is formed on the output gear 30, which is inserted into a bore 43 of the connecting rod 28 with play and therefore rotatable.

Die Figuren 5 bis 7 zeigen das Antriebsrad 31 des Sternradgetriebes in verschiedenen Positionen. In Figur 5 befindet es sich in Außereingriffsstellung mit dem Abtriebsrad 30, dabei läuft das untere Führungsmaul 40.1 auf dem Führungssteg 36. Das Antriebsrad 31 dreht sich durch den elektrischen Antrieb 32 kontinuierlich im Uhrzeigersinn, wobei die Drehrichtung für die Funktion der gezeigten Anordnung nicht relevant ist. Nachdem das Führungsmaul 40 über den Rand des Führungsstegs 36 geglitten ist (siehe Figur 6), gerät die Fangklaue 41.1 in Eingriff mit dem Fangzapfen 38.1. Durch die weitere Drehung wird die linke Zahnstrecke 39.1 auf die Teilverzahnung 37 gedreht und die Zähne kämmen miteinander. Hieraus entsteht eine Bewegungsphase mit einer Drehbewegung des Abtriebsrads 30, was wiederum den Zapfen samt Pleuel 28 nach unten in die in Figur 7 gezeigte Position bewegt. Das Pleuel 28 schiebt den Hebel 29 aus der 11-Uhr-Position (Figuren 5 und 6) in die 7-Uhr Position und verursacht damit eine Drehung des Ritzels 27. Das Ritzel 27 kämmt mit seinen Zähnen die Zähne des Sperrelements 20 und dreht es um die weiter oben beschriebenen 60° im Uhrzeigersinn. Am Ende des Eingriffs zwischen Zahnstrecke 39.1 und Teilverzahnung 37 greift die Fangklaue 41.2 in den Fangzapfen 38.2 und dreht das obere Führungsmaul 40.2 auf den Führungssteg. Die Bewegungsphase des Abtriebsrads 30 endet damit und das Sperrelement 20 verbleibt für den Zeitraum, in dem das Führungsmaul 40.2 wieder auf dem Führungssteg 36 gleitet, in seiner eingenommenen Position. Am Ende des Führungsstegs 36 wiederholt sich der vorbeschriebene Eingriff der Fangklaue 41 in den Fangzapfen 38 etc., wobei dann das Pleuel 28 samt Hebel 29 wieder nach oben gezogen wird und damit das Sperrelement 20 im Gegenuhrzeigersinn gedreht wird.The FIGS. 5 to 7 show the drive wheel 31 of the star gear in different positions. In FIG. 5 it is in disengaged position with the output gear 30, while running the lower guide jaw 40.1 on the guide web 36. The drive wheel 31 rotates by the electric drive 32 continuously in a clockwise direction, the direction of rotation for the function of the arrangement shown is not relevant. After the guide jaw 40 has slid over the edge of the guide web 36 (see FIG. 6 ), the fishing claw 41.1 engages with the catch pin 38.1. As a result of the further rotation, the left tooth section 39.1 is rotated onto the partial toothing 37 and the teeth mesh with one another. This results in a movement phase with a rotational movement of the output gear 30, which in turn the pin together with the connecting rod 28 down in the in FIG. 7 shown position moves. The connecting rod 28 pushes the lever 29 from the 11 o'clock position ( Figures 5 and 6 ) in the 7 o'clock position, causing the pinion 27 to rotate. The pinion 27 meshes with its teeth the teeth of the blocking element 20 and rotates it clockwise about 60 degrees as described above. At the End of the engagement between tooth segment 39.1 and partial teeth 37, the catch claw 41.2 engages in the catch pin 38.2 and turns the upper guide jaw 40.2 on the guide bar. The movement phase of the output gear 30 ends with it and the blocking element 20 remains in the position assumed for the period in which the guide jaw 40.2 slides on the guide web 36 again. At the end of the guide bar 36, the above-described engagement of the catch claw 41 in the catch 38, etc., repeated, in which case the connecting rod 28 together with the lever 29 is pulled up again and thus the locking element 20 is rotated counterclockwise.

Claims (5)

  1. A dishwasher (1) comprising spray arms (9 through 11), a recirculation pump (5) driven by an electric motor (33), and a water diverter provided on the pressure side of the pump in order to generate a flow leading from an inlet (4) to at least one of a plurality of selectable outlets (12 through 14) associated with the spray arms (9 through 11), the water diverter having at least one blocking element (20) and a drive element which serves to move the at least one blocking element (20) and is driven together with the electric motor (33) of the recirculation pump (5),
    wherein a transmission is disposed between the drive element and the blocking element (20) to convert a continuous movement of the drive element into a discontinuous movement of the blocking element (20).
  2. The dishwasher (1) as recited in claim 1,
    wherein the drive element is mechanically coupled to the electric motor of the recirculation pump.
  3. The dishwasher (1) as recited in claim 1,
    wherein the drive element has a separate electric drive (32), said drive (32) being energized in parallel with the electric motor (33) of the recirculation pump through the control of the appliance controller (35).
  4. The dishwasher (1) as recited in one of claims 1 through 3,
    wherein the transmission includes a star-wheel drive (30, 31).
  5. The dishwasher (1) as recited in one of claims 1 through 4,
    wherein the blocking element (20) is integrated into a chamber (19) of the recirculation pump (5).
EP08707207A 2007-02-13 2008-01-23 Dishwasher machine comprising a water point on the pump pressure side Not-in-force EP2117410B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007007670A DE102007007670A1 (en) 2007-02-13 2007-02-13 Dishwasher with a water pump provided on the pump side
PCT/EP2008/000494 WO2008098664A1 (en) 2007-02-13 2008-01-23 Dishwasher machine comprising a water point on the pump pressure side

Publications (2)

Publication Number Publication Date
EP2117410A1 EP2117410A1 (en) 2009-11-18
EP2117410B1 true EP2117410B1 (en) 2012-06-27

Family

ID=39310915

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08707207A Not-in-force EP2117410B1 (en) 2007-02-13 2008-01-23 Dishwasher machine comprising a water point on the pump pressure side

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US (1) US20100078049A1 (en)
EP (1) EP2117410B1 (en)
DE (1) DE102007007670A1 (en)
WO (1) WO2008098664A1 (en)

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DE102009002667B4 (en) * 2009-04-27 2016-03-24 BSH Hausgeräte GmbH Dishwasher and circulation pump with water separator
DE102011050229B4 (en) * 2011-05-10 2016-04-28 Miele & Cie. Kg water points
US9687136B2 (en) * 2014-09-10 2017-06-27 Haier Us Appliance Solutions, Inc. Turbine fluid diverter for an appliance
DE102014219891A1 (en) * 2014-10-01 2016-04-07 E.G.O. Elektro-Gerätebau GmbH Pump and home appliance with a pump
DE102015106639A1 (en) * 2015-04-29 2016-11-03 Dr. Ing. H.C. F. Porsche Aktiengesellschaft pump
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CN106562753B (en) * 2016-11-09 2019-11-19 三花亚威科电器设备（芜湖）有限公司 Control switch, dehumidification device and dish-washing machine
CN108451466B (en) * 2018-03-07 2021-08-20 佛山市顺德区美的洗涤电器制造有限公司 Spray arm device and washing electric appliance
KR102555838B1 (en) * 2018-07-19 2023-07-13 엘지전자 주식회사 Washing machine
CN110772200A (en) * 2018-07-30 2020-02-11 青岛海尔洗碗机有限公司 Water diversion valve and dish washing machine

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DE10133130A1 (en) * 2001-07-07 2003-01-16 Miele & Cie Circulation pump with/without heating device, especially for supplying washing liquid to dishwasher spray arms, has water switch integrated into circulation pump
DE20122635U1 (en) * 2001-12-21 2006-10-05 BSH Bosch und Siemens Hausgeräte GmbH Fluid flow control for dish washer has pump speed controlled and cross section of fluid feed to washing container varied
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Also Published As

Publication number Publication date
WO2008098664A1 (en) 2008-08-21
DE102007007670A1 (en) 2008-08-14
EP2117410A1 (en) 2009-11-18
US20100078049A1 (en) 2010-04-01

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