EP2083110B1 - Washing machine with volume flow switching valve - Google Patents

Washing machine with volume flow switching valve Download PDF

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Publication number
EP2083110B1
EP2083110B1 EP08021592A EP08021592A EP2083110B1 EP 2083110 B1 EP2083110 B1 EP 2083110B1 EP 08021592 A EP08021592 A EP 08021592A EP 08021592 A EP08021592 A EP 08021592A EP 2083110 B1 EP2083110 B1 EP 2083110B1
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EP
European Patent Office
Prior art keywords
washing machine
valve
volume flow
switching valve
water
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EP08021592A
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German (de)
French (fr)
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EP2083110A1 (en
Inventor
Guido Schellenberg
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V-Zug AG
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V-Zug AG
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Application filed by V-Zug AG filed Critical V-Zug AG
Priority to DK08021592.4T priority Critical patent/DK2083110T3/en
Priority to SI200830085T priority patent/SI2083110T1/en
Priority to EP08021592A priority patent/EP2083110B1/en
Priority to DE502008001119T priority patent/DE502008001119D1/en
Priority to PL08021592T priority patent/PL2083110T3/en
Priority to AT08021592T priority patent/ATE477364T1/en
Publication of EP2083110A1 publication Critical patent/EP2083110A1/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/088—Liquid supply arrangements

Definitions

  • the invention relates to a washing machine with a supply line and a valve arrangement, wherein with the valve arrangement optionally water from the supply line in at least one of a plurality of branch lines can be guided.
  • supply line line in which the water is passed to the valve assembly
  • branch line designates a line leading away from the valve assembly
  • a washing machine of this type is in EP 1 693 500 described.
  • the water is fed from one supply line to several valves.
  • Each valve is connected to a branch line which communicates with an anteroom from where the water can flow out through a first and a second outlet.
  • the relevant valve will only be opened pulsed. If the valve is opened continuously, the water flows through both exits. In this way, water can be selectively conveyed through multiple outlets, requiring a relatively small number of valves.
  • valves are hydrodynamically unfavorable due to the resulting pressure surges and may e.g. lead to noise.
  • a volume flow switching valve is arranged with at least a first and a second passage position.
  • the flow switching valve allows water through in both passages, but less in the first pass position than in the second pass.
  • water can lead with different volume flows.
  • a pulsed operation is not necessary.
  • the total number of valves remains small because the flow switching valve is common to all branch lines.
  • the inventive valve assembly with flow switching valve is particularly suitable for small water flow tanks on the drum to compensate for imbalance optionally filled with water and to supply chambers for receiving washing reagents optionally with water in large water flow.
  • FIG EP 1 693 500 An example of a washing machine, as may be used in connection with the present invention, is shown in FIG EP 1 693 500 described.
  • a washing machine has a drum with eg horizontal axis of rotation, which receives the laundry to be washed.
  • the supply of water takes place via a plurality of chambers, in particular three chambers, into which washing reagents can be introduced so that the supplied water flushes the washing reagents into the drum.
  • the chambers are preferably arranged in a drawer and the washing reagents are filled in by the user.
  • a control system ensures that one of the chambers is rinsed in each washing cycle (eg prewash, main wash, soft rinse).
  • the present invention relates to a system of valves which is suitable, inter alia, for supplying water to these components.
  • An example of such a system is in Fig. 1 shown. It has a supply line 1, through which the water flows from the water network into the device.
  • an optional safety valve 2 may be arranged first, which interrupts the water supply in case of device defect or power failure. Then follows a volume flow switching valve 3, which, however, can also be arranged in front of the safety valve 2.
  • the volume flow switching valve is a valve with which the volume flow of the water can be set to at least two levels.
  • the volume flow switching valve 3 has at least a first and a second passage position in which it lets water through. The two passage positions differ in the amount of water passed, which is lower in the first passage position than in the second.
  • the volume flow in the first passage position is limited to less than 1 liter per second, in particular it is about 0.5 liters per minute, while in the second passage position it is more than 5 liters per minute, in particular about 12 liters per minute.
  • Concrete design examples of the volume flow switching valve 3 will be described below.
  • the volume flow switching valve 3 can be controlled by electrical, such that the control of the device can select which passage position it is in each case.
  • the water passes to a valve assembly 4, the task of which is to lead the water from the supply line into at least one of several branch lines 5a, 5b, 5c, depending on control signals from the controller of the device.
  • the valve arrangement 4 comprises a plurality of closure valves 6a, 6b, 6c, one per branch line 5a, 5b, 5c.
  • Each closure valve 6a, 6b, 6c can be individually opened and closed by the controller. However, in the present embodiment, the controller will hold only at most one of the shutter valves 5a, 5b, 5c open at a time.
  • FIG. 1 communicates each branch line 5a, 5b, 5c, each with a designated as "vestibule" 7a, 7b and 7c container.
  • the vestibule corresponds to the vestibule 55 of FIG. 8 of FIG EP 1 693 500 ,
  • Each vestibule has a first output 8a, 8b, 8c and a second output 9a, 9b, 9c.
  • the first output 8a, 8b, 8c is located lower on the antechamber 7a, 7b, 7c than the second output 9a, 9b, 9c.
  • the diameter of the first output 8a, 8b, 8c is dimensioned so that it can accommodate the volume flow of the volume flow switching valve 3 in the first passage position, but not those in the second passage position.
  • the first outputs 8a, 8b, 8c of the antechambers 7a, 7b, 7c are each connected to one of the tanks 10a, 10b, 10c, which are arranged on the drum of the washing machine for imbalance compensation.
  • the second outputs 9a, 9b, 9c of the antechambers 7a, 7b, 7c respectively communicate via showerheads 11a, 11b, 11c with the already mentioned chambers 12a, 12b, 12c into which the washing reagents can be introduced. From there, the water flows into the drum of the device.
  • a corresponding construction is shown in detail in Fig. 8 of EP 1 693 500 shown.
  • a possible embodiment of the volume flow switching valve 3 is in Fig. 2 shown. It has a housing 14 with an inlet 15, in which a first volumetric flow regulator 15a can be arranged, which sets the maximum volumetric flow to, for example, about 12 liters per minute. Thereafter, the flow of water divides into a first channel 16 and a second channel 17, which are connected in parallel.
  • a flow resistance in the form of a second volume flow regulator 18 is arranged, which regulates the flow through the first channel to eg about 0.5 liters per minute.
  • Volumetric flow controllers of this type are known to the person skilled in the art and consist, for example, of a flexible element 18a, which is held at a certain distance in front of the openings of fine passage openings 18b. If the line pressure is high, then the flexible Element 18a pressed closer to the mouths of the passage openings 18b, whereby a self-limitation of the volume flow can be achieved.
  • a closure valve 20 is arranged, with which the second channel can be closed.
  • the closure valve 20 is formed by a so-called "servo-controlled" valve.
  • This has a flexible membrane 21 which is driven by an electromagnet 23 via an armature 22.
  • the membrane 21 are fine inlet openings 24a and an outlet opening 24b.
  • the armature 22 closes the outlet opening 24b and the pressure of the water from the channel 17 presses the membrane 21 against a valve seat 26 and keeps the valve closed. If the armature 22 is attracted by the electromagnet 23, the membrane is pushed away from the valve seat 26 by the water pressure of the second channel 17 and the valve is opened so that a large volume flow can flow through the second channel 17.
  • the closure valve 20 is controlled by the controller of the device. If the closure valve 20 is closed, then the volume flow switching valve is in its first passage position, in which the water can flow only through the first channel and thus via the second volume flow regulator 18, so that the flow e.g. is limited to about 0.5 liters per minute. If the closure valve 20 is open, then the volume flow switching valve is in its second passage position, in which the water can also flow through the second channel 17, so that the volume flow only through the first volume flow regulator 15a on e.g. about 12 liters per minute is limited.
  • the first channel 16 and the second channel 17 converge in an outlet 25 of the volume flow switching valve 3, from where the water of the valve assembly 4 is supplied.
  • the inlet 15 and the outlet 25 are disposed approximately coaxially with each other, while the axis of the armature 22 of the closure valve 20 is approximately perpendicular to the connection line between the inlet 15 and the outlet 25.
  • FIG. 3 An alternative embodiment of the volume flow switching valve 3 is in Fig. 3 shown.
  • the axis of the inlet 15 is parallel to that of the armature of the shutter valve 20, while the axis of the outlet 25 is approximately perpendicular thereto.
  • valve assembly 4 is formed by three shut-off valves 6a, 6b, 6c.
  • valve assembly 4 can also be formed by a switching valve 27, as in Fig. 4 is shown.
  • a switching valve allows water to be selectively guided from the supply line 1 in each case one of the branch lines.
  • Corresponding valves are known to the person skilled in the art.
  • Fig. 4 In the execution after Fig. 4 is further illustrated that the safety valve 2 can be integrated into the housing of the volume flow switching valve 3.
  • volume flow diverter valve 3 and valve assembly 4 has been used to supply the water with two different volume flows each one of the antechambers 7a, 7b, 7c, and the amount of volumetric flow then determined by which of the exits of the antechambers 7a, 7b, 7c, the water exits.
  • the present invention also finds other applications in a washing machine.
  • a washing machine without Umwuchtkompensation the water from the branch lines 5a, 5b, 5c can be performed directly to the chambers 12a, 12b, 12c, ie the antechambers 7a, 7b 7c accounts.
  • the volume flow switching valve 3 is used to adjust the volume flow of the water through the chambers 12, 12 b, 12 c. This allows it For example, to equip the washing machine with the option of a "quiet" wash program. If the user selects this option, the volume flow switching valve 3 is operated in the first passage position, so that the water flow is low, whereby the noise development can be reduced. If the user does not select the option, then the volume flow switching valve 3 is operated in the second passage position, so that a faster program run is possible, but with higher noise development.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Multiple-Way Valves (AREA)
  • Centrifugal Separators (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Abstract

The machine has valve arrangement (4) with an electric controllable volume flow switching valve (3) arranged with two passage positions in a supply line (1). The valve passes water into the both passage positions, such that lesser water is passed into one of the position than in another passage position. The switching valve comprises two channels, which are connected parallel to each other. A flow resistor i.e. volume flow regulator (18), is arranged in one of the channels, and another channel is locked with a shut-off valve (20). A safety valve (2) is arranged in the switching valve.

Description

Die Erfindung betrifft eine Waschmaschine mit einer Zufuhrleitung und einer Ventilanordnung, wobei mit der Ventilanordnung wahlweise Wasser aus der Zufuhrleitung in mindestens eine von mehreren Zweigleitungen führbar ist.The invention relates to a washing machine with a supply line and a valve arrangement, wherein with the valve arrangement optionally water from the supply line in at least one of a plurality of branch lines can be guided.

Unter "Zufuhrleitung" ist dabei diejenige Leitung zu verstehen, in welcher das Wasser zur Ventilanordnung geführt wird, während der Begriff "Zweigleitung" eine Leitung bezeichnet, die von der Ventilanordnung wegführt.Under "supply line" is to be understood that line in which the water is passed to the valve assembly, while the term "branch line" designates a line leading away from the valve assembly.

Eine Waschmaschine dieser Art ist in EP 1 693 500 beschrieben. Dort wird das Wasser von einer Zufuhrleitung zu mehreren Ventilen geführt. Jedes Ventil ist mit einer Zweigleitung verbunden, welche mit einem Vorraum kommuniziert, von wo das Wasser durch einen ersten und einen zweiten Ausgang ausströmen kann.A washing machine of this type is in EP 1 693 500 described. There, the water is fed from one supply line to several valves. Each valve is connected to a branch line which communicates with an anteroom from where the water can flow out through a first and a second outlet.

Soll Wasser nur durch den ersten Ausgang strömen, so wird das betreffende Ventil nur gepulst geöffnet. Wird das Ventil dauernd geöffnet, so strömt das Wasser durch beide Ausgänge. Auf diese Weise kann Wasser gezielt durch mehrere Ausgänge gefördert werden, wobei eine verhältnismässig kleine Zahl von Ventilen benötigt wird.If water should only flow through the first outlet, the relevant valve will only be opened pulsed. If the valve is opened continuously, the water flows through both exits. In this way, water can be selectively conveyed through multiple outlets, requiring a relatively small number of valves.

Allerdings ist der gepulste Betrieb von Ventilen aufgrund der dabei entstehenden Druckstösse hydrodynamisch ungünstig und kann z.B. zu Lärm führen.However, the pulsed operation of valves is hydrodynamically unfavorable due to the resulting pressure surges and may e.g. lead to noise.

Es stellt sich deshalb die Aufgabe, in einfacher Weise eine Waschmaschine der eingangs genannten Art bereitzustellen, die die wahlweise Zufuhr von Wasser in die Zweigleitungen mit unterschiedlichen Volumenströmen erlaubt und das genannte Problem vermeidet.It is therefore an object to provide a simple way a washing machine of the type mentioned, which allows the optional supply of water in the branch lines with different flow rates and avoids the problem mentioned.

Diese Aufgabe wird von der Waschmaschine gemäss Anspruch 1 gelöst. Demgemäss ist in der Zufuhrleitung ein Volumenstrom-Umschaltventil mit mindestens einer ersten und einer zweiten Durchlassstellung angeordnet. Das Volumenstrom-Umschaltventil lässt in beiden Durchlassstellungen Wasser durch, aber in der ersten Durchlassstellung weniger als in der Zweiten. Somit lässt sich in jede der Zweigleitungen Wasser mit unterschiedlichen Volumenströmen führen. Ein gepulster Betrieb ist nicht notwendig. Die gesamte Zahl von Ventilen bleibt klein, da das Volumenstrom-Umschaltventil allen Zweigleitungen gemeinsam ist.This object is achieved by the washing machine according to claim 1. Accordingly, in the supply line, a volume flow switching valve is arranged with at least a first and a second passage position. The flow switching valve allows water through in both passages, but less in the first pass position than in the second pass. Thus, in each of the branch lines water can lead with different volume flows. A pulsed operation is not necessary. The total number of valves remains small because the flow switching valve is common to all branch lines.

Die erfindungsgemässe Ventilanordnung mit Volumenstrom-Umschaltventil eignet sich insbesondere dazu, bei kleinem Wasserstrom Tanks an der Trommel zur Unwuchtkompensation wahlweise mit Wasser zu füllen und bei grossem Wasserstrom Kammern zur Aufnahme von Waschreagenzien wahlweise mit Wasser zu beliefern.The inventive valve assembly with flow switching valve is particularly suitable for small water flow tanks on the drum to compensate for imbalance optionally filled with water and to supply chambers for receiving washing reagents optionally with water in large water flow.

Weitere bevorzugte Ausführungen der Erfindung ergeben sich aus der folgenden Beschreibung anhand der Figuren. Dabei zeigen:

  • Fig. 1 ein Diagramm einer ersten Ausführung einer Waschmaschine,
  • Fig. 2 einen Schnitt durch eine erste Ausführung des Volumenstrom-Umschaltventils,
  • Fig. 3 eine Ansicht einer zweiten Ausführung des Volumenstrom-Umschaltventils in teilweise geschnittener Dargstellung und
  • Fig. 4 ein Diagramm einer zweiten Ausführung einer Waschmaschine.
Further preferred embodiments of the invention will become apparent from the following description with reference to FIGS. Showing:
  • Fig. 1 a diagram of a first embodiment of a washing machine,
  • Fig. 2 a section through a first embodiment of the flow switching valve,
  • Fig. 3 a view of a second embodiment of the flow switching valve in a partially cut Dargstellung and
  • Fig. 4 a diagram of a second embodiment of a washing machine.

Ein Beispiel einer Waschmaschine, wie sie im Zusammenhang mit der vorliegenden Erfindung eingesetzt werden kann, ist in EP 1 693 500 beschrieben. Insbesondere besitzt eine derartige Waschmaschine eine Trommel mit z.B. horizontaler Drehachse, welche die zu waschende Wäsche aufnimmt. Die Zufuhr von Wasser erfolgt über mehrere Kammern, insbesondere drei Kammern, in welche Waschreagenzien eingefüllt werden können, so dass das zugeführte Wasser die Waschreagenzien in die Trommel spült. Die Kammern sind vorzugsweise in einer Schublade angeordnet und die Waschreagenzien werden vom Benutzer eingefüllt. Eine Steuerung stellt sicher, dass in den einzelnen Waschgängen (z.B. Vorwaschen, Hauptwaschen, Weichspülen) jeweils eine der Kammern gespült wird.An example of a washing machine, as may be used in connection with the present invention, is shown in FIG EP 1 693 500 described. In particular, such a washing machine has a drum with eg horizontal axis of rotation, which receives the laundry to be washed. The supply of water takes place via a plurality of chambers, in particular three chambers, into which washing reagents can be introduced so that the supplied water flushes the washing reagents into the drum. The chambers are preferably arranged in a drawer and the washing reagents are filled in by the user. A control system ensures that one of the chambers is rinsed in each washing cycle (eg prewash, main wash, soft rinse).

Um eine Unwucht beim Schleudern der Wäsche zu vermeiden, sind in der in EP 1 693 500 beschriebenen Weise mehrere Tanks an der Trommel befestigt. Diese werden abhängig von der jeweiligen Unwucht mit Wasser gefüllt, um die Unwucht mindestens teilweise zu kompensieren.To avoid an imbalance when spinning the laundry, are in the in EP 1 693 500 described several tanks attached to the drum. These are filled with water depending on the respective unbalance in order to compensate at least partially for the imbalance.

Die vorliegende Erfindung betrifft ein System von Ventilen, welches u.a. dazu geeignet ist, diesen Komponenten Wasser zuzuführen. Ein Beispiel eines solchen Systems ist in Fig. 1 dargestellt. Es besitzt eine Zufuhrleitung 1, durch welche das Wasser vom Wassernetz in das Gerät fliesst.The present invention relates to a system of valves which is suitable, inter alia, for supplying water to these components. An example of such a system is in Fig. 1 shown. It has a supply line 1, through which the water flows from the water network into the device.

Eingangs in der Zufuhrleitung 1 kann zuerst ein optionales Sicherheitsventil 2 angeordnet sein, das die Wasserzufuhr bei Gerätedefekt oder Stromausfall unterbricht. Sodann folgt ein Volumenstrom-Umschaltventil 3, welches jedoch auch vor dem Sicherheitsventil 2 angeordnet sein kann. Wie bereits erwähnt, handelt es sich beim Volumenstrom-Umschaltventil um ein Ventil, mit welchem der Volumenstrom des Wassers auf mindestens zwei Stufen eingestellt werden kann. Hierzu besitzt das Volumenstrom-Umschaltventil 3 mindestens eine erste und einer zweite Durchlassstellung, in denen es Wasser durchlässt. Die beiden Durchlassstellungen unterscheiden sich in der durchgelassenen Wassermenge, welche in der ersten Durchlassstellung geringer als in der Zweiten ist. Beispielsweise ist der Volumenstrom in der ersten Durchlassstellung auf weniger als 1 Liter pro Sekunde limitiert, insbesondere beträgt er ca. 0.5 Liter pro Minute, während er in der zweiten Durchlassstellung mehr als 5 Liter pro Minute, insbesondere ca. 12 Liter pro Minute, beträgt. Konkrete Ausgestaltungsbeispiele des Volumenstrom-Umschaltventils 3 werden weiter unten beschrieben.Input in the supply line 1, an optional safety valve 2 may be arranged first, which interrupts the water supply in case of device defect or power failure. Then follows a volume flow switching valve 3, which, however, can also be arranged in front of the safety valve 2. As already mentioned, the volume flow switching valve is a valve with which the volume flow of the water can be set to at least two levels. For this purpose, the volume flow switching valve 3 has at least a first and a second passage position in which it lets water through. The two passage positions differ in the amount of water passed, which is lower in the first passage position than in the second. For example, the volume flow in the first passage position is limited to less than 1 liter per second, in particular it is about 0.5 liters per minute, while in the second passage position it is more than 5 liters per minute, in particular about 12 liters per minute. Concrete design examples of the volume flow switching valve 3 will be described below.

Das Volumenstrom-Umschaltventil 3 kann von elektrisch gesteuert werden, derart, dass die Steuerung des Geräts anwählen kann, in welcher Durchlassstellung es sich jeweils befindet.The volume flow switching valve 3 can be controlled by electrical, such that the control of the device can select which passage position it is in each case.

Vom Volumenstrom-Umschaltventil 3 gelangt das Wasser zu einer Ventilanordnung 4, deren Aufgabe es ist, das Wasser von der Zufuhrleitung in mindestens eine von mehreren Zweigleitungen 5a, 5b, 5c zu führen, und zwar abhängig von Steuersignalen von der Steuerung des Geräts.From the volume flow switching valve 3, the water passes to a valve assembly 4, the task of which is to lead the water from the supply line into at least one of several branch lines 5a, 5b, 5c, depending on control signals from the controller of the device.

In der Ausführung nach Fig. 1 umfasst die Ventilanordnung 4 mehrere Verschlussventile 6a, 6b, 6c, und zwar je eines pro Zweigleitung 5a, 5b, 5c. Jedes Verschlussventil 6a, 6b, 6c kann von der Steuerung einzeln geöffnet und geschlossen werden. In der vorliegenden Ausführung wird die Steuerung jedoch nur jeweils höchstens eines der Verschlussventile 5a, 5b, 5c gleichzeitig geöffnet halten.In the execution after Fig. 1 The valve arrangement 4 comprises a plurality of closure valves 6a, 6b, 6c, one per branch line 5a, 5b, 5c. Each closure valve 6a, 6b, 6c can be individually opened and closed by the controller. However, in the present embodiment, the controller will hold only at most one of the shutter valves 5a, 5b, 5c open at a time.

Im Beispiel nach Fig. 1 kommuniziert jede Zweigleitung 5a, 5b, 5c mit jeweils einem als "Vorraum" 7a, 7b und 7c bezeichneten Behälter. Der Vorraum entspricht dem Vorraum 55 von Fig. 8 von EP 1 693 500 .In the example below Fig. 1 communicates each branch line 5a, 5b, 5c, each with a designated as "vestibule" 7a, 7b and 7c container. The vestibule corresponds to the vestibule 55 of FIG. 8 of FIG EP 1 693 500 ,

Jeder Vorraum besitzt einen ersten Ausgang 8a, 8b, 8c sowie einen zweiten Ausgang 9a, 9b, 9c. Der erste Ausgang 8a, 8b, 8c ist tiefer am Vorraum 7a, 7b, 7c angeordnet als der zweite Ausgang 9a, 9b, 9c. Zudem ist der Durchmesser des ersten Ausgangs 8a, 8b, 8c so bemessen, dass er den Volumenstrom des Volumenstrom-Umschaltventils 3 in der ersten Durchlassstellung aufnehmen kann, nicht aber jenen in der zweiten Durchlassstellung. So wird erreicht, dass in der ersten Durchlassstellung des Volumentstrom-Umschaltventils 3 das in den Vorraum 7a, 7b, 7c fliessende Wasser vollständig durch den ersten Ausgang 8a, 8b, 8c abfliesst, während in der zweiten Durchlassstellung des Volumentstrom-Umschaltventils 3 das in den Vorraum 7a, 7b, 7c fliessende Wasser durch beide Ausgänge abfliesst. Ähnlich wie in EP 1 693 500 kann auf diese Weise erreicht werden, dass die Steuerung das Wasser wahlweise nur durch den ersten oder durch beide Ausgänge führen kann. Im Gegensatz EP 1 693 500 wird dies hier jedoch nicht durch den gepulsten oder halb offenen Betrieb des Ventils direkt vor dem Vorraum erreicht, sondern durch Umschalten des Volumentstrom-Umschaltventils 3.Each vestibule has a first output 8a, 8b, 8c and a second output 9a, 9b, 9c. The first output 8a, 8b, 8c is located lower on the antechamber 7a, 7b, 7c than the second output 9a, 9b, 9c. In addition, the diameter of the first output 8a, 8b, 8c is dimensioned so that it can accommodate the volume flow of the volume flow switching valve 3 in the first passage position, but not those in the second passage position. It is thus achieved that, in the first passage position of the volume flow changeover valve 3, the water flowing into the antechamber 7a, 7b, 7c flows completely through the first outlet 8a, 8b, 8c, while in the second passage position of the volume flow changeover valve 3 the water flows into the Anteroom 7a, 7b, 7c flowing water flows through both exits. Similar to in EP 1 693 500 can be achieved in this way that the control the water can optionally only pass through the first or both exits. In contrast EP 1 693 500 However, this is not achieved here by the pulsed or semi-open operation of the valve directly in front of the vestibule, but by switching the volume flow switching valve. 3

Die ersten Ausgänge 8a, 8b, 8c der Vorräume 7a, 7b, 7c sind jeweils mit einem der Tanks 10a, 10b, 10c verbunden, welche zur Unwuchtkompensation an der Trommel der Waschmaschine angeordnet sind. Die Verbindung zwischen den Ausgängen 8a, 8b, 8c und den Tanks 10a, 10b, 10c erfolgt über eine Düse mit Luftstrecke und an der Trommel angebrachte Füllringe.The first outputs 8a, 8b, 8c of the antechambers 7a, 7b, 7c are each connected to one of the tanks 10a, 10b, 10c, which are arranged on the drum of the washing machine for imbalance compensation. The connection between the outputs 8a, 8b, 8c and the tanks 10a, 10b, 10c via a nozzle with air gap and attached to the drum filling rings.

Die zweiten Ausgänge 9a, 9b, 9c der Vorräume 7a, 7b, 7c kommunizieren jeweils über Brausen 11a, 11b, 11c mit den bereits erwähnten Kammern 12a, 12b, 12c, in welche die Waschreagenzien eingefüllt werden können. Von dort fliesst das Wasser in die Trommel des Geräts. Eine entsprechende Konstruktion ist im Detail in Fig. 8 von EP 1 693 500 dargestellt.The second outputs 9a, 9b, 9c of the antechambers 7a, 7b, 7c respectively communicate via showerheads 11a, 11b, 11c with the already mentioned chambers 12a, 12b, 12c into which the washing reagents can be introduced. From there, the water flows into the drum of the device. A corresponding construction is shown in detail in Fig. 8 of EP 1 693 500 shown.

Eine mögliche Ausgestaltung des Volumentstrom-Umschaltventils 3 ist in Fig. 2 dargestellt. Es besitzt ein Gehäuse 14 mit einem Einlass 15, in welchem ein erster Volumenstromregler 15a angeordnet sein kann, welcher den maximalen Volumenstrom auf beispielsweise ca. 12 Liter pro Minute einstellt. Danach teilt sich der Fluss des Wassers in einen ersten Kanal 16 und einen zweiten Kanal 17, welche parallel zueinander geschaltet sind.A possible embodiment of the volume flow switching valve 3 is in Fig. 2 shown. It has a housing 14 with an inlet 15, in which a first volumetric flow regulator 15a can be arranged, which sets the maximum volumetric flow to, for example, about 12 liters per minute. Thereafter, the flow of water divides into a first channel 16 and a second channel 17, which are connected in parallel.

Im ersten Kanal 16 ist ein Strömungswiderstand in Form eines zweiten Volumenstromreglers 18 angeordnet ist, der den Fluss durch den ersten Kanal auf z.B. ca. 0.5 Liter pro Minute regelt. Volumenstromregler dieser Art sind dem Fachmann bekannt und bestehen z.B. aus einem flexiblen Element 18a, welches in gewissen Abstand vor den Mündungen feiner Durchlassöffnungen 18b gehalten ist. Wird der Leitungsdruck gross, so wird das flexible Element 18a näher an die Mündungen der Durchlassöffnungen 18b gedrückt, wodurch eine Selbstlimitierung des Volumenstroms erreicht werden kann.In the first channel 16, a flow resistance in the form of a second volume flow regulator 18 is arranged, which regulates the flow through the first channel to eg about 0.5 liters per minute. Volumetric flow controllers of this type are known to the person skilled in the art and consist, for example, of a flexible element 18a, which is held at a certain distance in front of the openings of fine passage openings 18b. If the line pressure is high, then the flexible Element 18a pressed closer to the mouths of the passage openings 18b, whereby a self-limitation of the volume flow can be achieved.

Im zweiten Kanal 17 ist ein Verschlussventil 20 angeordnet, mit welchem der zweite Kanal verschlossen werden kann. In der dargestellten Ausführung wird das Verschlussventil 20 von einem sogenannten "servogesteuerten" Ventil gebildet. Dieses besitzt eine flexible Membran 21, welche über einen Anker 22 von einem Elektromagneten 23 angesteuert wird. In der Membran 21 befinden sich feine Einlassöffnungen 24a sowie eine Auslassöffnung 24b. Im geschlossenen Zustand des Ventils verschliesst der Anker 22 die Auslassöffnung 24b und der Druck des Wassers vom Kanal 17 drückt die Membran 21 gegen einen Ventilsitz 26 und hält das Ventil geschlossen. Wird der Anker 22 vom Elektromagneten 23 angezogen, so wird die Membran durch den Wasserdruck des zweiten Kanals 17 vom Ventilsitz 26 weg gedrückt und das Ventil wird geöffnet, so dass ein grosser Volumenstrom durch den zweiten Kanal 17 fliessen kann.In the second channel 17, a closure valve 20 is arranged, with which the second channel can be closed. In the illustrated embodiment, the closure valve 20 is formed by a so-called "servo-controlled" valve. This has a flexible membrane 21 which is driven by an electromagnet 23 via an armature 22. In the membrane 21 are fine inlet openings 24a and an outlet opening 24b. In the closed state of the valve, the armature 22 closes the outlet opening 24b and the pressure of the water from the channel 17 presses the membrane 21 against a valve seat 26 and keeps the valve closed. If the armature 22 is attracted by the electromagnet 23, the membrane is pushed away from the valve seat 26 by the water pressure of the second channel 17 and the valve is opened so that a large volume flow can flow through the second channel 17.

Das Verschlussventil 20 wird von der Steuerung des Geräts angesteuert. Ist das Verschlussventil 20 geschlossen, so befindet sich das Volumenstrom-Umschaltventil in seiner ersten Durchlassstellung, in welcher das Wasser nur durch den ersten Kanal und somit über den zweiten Volumenstromregler 18 fliessen kann, so dass der Fluss z.B. auf ca. 0.5 Liter pro Minute beschränkt ist. Ist das Verschlussventil 20 offen, so befindet sich das Volumenstrom-Umschaltventil in seiner zweiten Durchlassstellung, in welcher das Wasser auch durch den zweiten Kanal 17 fliessen kann, so dass der Volumenstrom nur durch den ersten Volumenstromregler 15a auf z.B. ca. 12 Liter pro Minute beschränkt ist.The closure valve 20 is controlled by the controller of the device. If the closure valve 20 is closed, then the volume flow switching valve is in its first passage position, in which the water can flow only through the first channel and thus via the second volume flow regulator 18, so that the flow e.g. is limited to about 0.5 liters per minute. If the closure valve 20 is open, then the volume flow switching valve is in its second passage position, in which the water can also flow through the second channel 17, so that the volume flow only through the first volume flow regulator 15a on e.g. about 12 liters per minute is limited.

Der erste Kanal 16 und der zweite Kanal 17 laufen in einem Auslass 25 des Volumenstrom-Umschaltventils 3 zusammen, von wo das Wasser der Ventilanordnung 4 zugeführt wird.The first channel 16 and the second channel 17 converge in an outlet 25 of the volume flow switching valve 3, from where the water of the valve assembly 4 is supplied.

In der Ausführung nach Fig. 2 sind der Einlass 15 und der Auslass 25 ungefähr koaxial zueinander angeordnet, während die Achse des Ankers 22 des Verschlussventils 20 ungefähr rechtwinklig zu Verbindungslinie zwischen Einlass 15 und Auslass 25 angeordnet ist.In the execution after Fig. 2 For example, the inlet 15 and the outlet 25 are disposed approximately coaxially with each other, while the axis of the armature 22 of the closure valve 20 is approximately perpendicular to the connection line between the inlet 15 and the outlet 25.

Eine alternative Ausführung des Volumenstrom-Umschaltventils 3 ist in Fig. 3 dargestellt. Hier ist die Achse des Einlasses 15 parallel zu jener des Ankers des Verschlussventils 20, während die Achse des Auslasses 25 ungefähr senkrecht hierzu angeordnet ist.An alternative embodiment of the volume flow switching valve 3 is in Fig. 3 shown. Here, the axis of the inlet 15 is parallel to that of the armature of the shutter valve 20, while the axis of the outlet 25 is approximately perpendicular thereto.

In der Ausführung nach Fig. 1 wird die Ventilanordnung 4 von drei Verschlussventilen 6a, 6b, 6c gebildet. Alternativ hierzu kann die Ventilanordnung 4 jedoch auch von einem Umschaltventil 27 gebildet werden, wie es in Fig. 4 dargestellt ist. Ein derartiges Umschaltventil erlaubt es, Wasser wahlweise von der Zufuhrleitung 1 in jeweils eine der Zweigleitungen zu führen. Entsprechende Ventile sind dem Fachmann bekannt.In the execution after Fig. 1 the valve assembly 4 is formed by three shut-off valves 6a, 6b, 6c. Alternatively, however, the valve assembly 4 can also be formed by a switching valve 27, as in Fig. 4 is shown. Such a switching valve allows water to be selectively guided from the supply line 1 in each case one of the branch lines. Corresponding valves are known to the person skilled in the art.

In der Ausführung nach Fig. 4 ist weiter illustriert, dass das Sicherheitsventil 2 in das Gehäuse des Volumenstrom-Umschaltventils 3 integriert werden kann.In the execution after Fig. 4 is further illustrated that the safety valve 2 can be integrated into the housing of the volume flow switching valve 3.

In den soweit gezeigten Ausführungen wurde die Kombination aus Volumenstrom-Umschaltventil 3 und Ventilanordnung 4 dazu verwendet, das Wasser mit zwei unterschiedlichen Volumenströmen jeweils einem der Vorräume 7a, 7b, 7c zuzuführen, und die Menge des Volumenstroms bestimmte sodann, durch welche der Ausgänge der Vorräume 7a, 7b, 7c das Wasser austritt.In the embodiments shown so far, the combination of volume flow diverter valve 3 and valve assembly 4 has been used to supply the water with two different volume flows each one of the antechambers 7a, 7b, 7c, and the amount of volumetric flow then determined by which of the exits of the antechambers 7a, 7b, 7c, the water exits.

Die vorliegende Erfindung findet jedoch auch andere Anwendungen in einer Waschmaschine. Bei einer Waschmaschine ohne Umwuchtkompensation kann das Wasser von den Zweigleitungen 5a, 5b, 5c direkt zu den Kammern 12a, 12b, 12c geführt werden, d.h. die Vorräume 7a, 7b 7c entfallen. In diesem Fall dient das Volumenstrom-Umschaltventil 3 dazu, den Volumenstrom des Wassers durch die Kammern 12, 12b, 12c einzustellen. Dies erlaubt es beispielsweise, die Waschmaschine mit der Option eines "ruhigen" Waschprogramms auszustatten. Wählt der Benutzer diese Option an, so wird das Volumenstrom-Umschaltventil 3 in der ersten Durchlassstellung betrieben, so dass der Wasserfluss gering ist, wodurch die Lärmentwicklung reduziert werden kann. Wählt der Benutzer die Option nicht an, so wird das Volumenstrom-Umschaltventil 3 in der zweiten Durchlassstellung betrieben, so dass ein schnellerer Programmdurchlauf möglich wird, allerdings bei höherer Lärmentwicklung.However, the present invention also finds other applications in a washing machine. In a washing machine without Umwuchtkompensation the water from the branch lines 5a, 5b, 5c can be performed directly to the chambers 12a, 12b, 12c, ie the antechambers 7a, 7b 7c accounts. In this case, the volume flow switching valve 3 is used to adjust the volume flow of the water through the chambers 12, 12 b, 12 c. This allows it For example, to equip the washing machine with the option of a "quiet" wash program. If the user selects this option, the volume flow switching valve 3 is operated in the first passage position, so that the water flow is low, whereby the noise development can be reduced. If the user does not select the option, then the volume flow switching valve 3 is operated in the second passage position, so that a faster program run is possible, but with higher noise development.

Claims (10)

  1. Washing machine with a feed line (1) and with a valve arrangement (4), wherein water is selectibly guidable from the feed line (1) into at least one of multiple branch lines (5a, 5b, 5c) by means of the valve arrangement (4), characterized in that an electrically controllable volume flow switching valve (3) with at least a first and a second through-flow position is arranged in the feed line (1), wherein the volume flow switching valve (3) lets water through in both through-flow positions but in the first through-flow position less than in the second, and wherein the water gets from the volume flow switching valve (3) to the valve arrangement (4).
  2. Washing machine according to claim 1, wherein the volume flow switching valve (3) has a first and a second channel (16, 17) which are switched in parallel to each other, wherein a flow resistance is arranged in the first channel (16) and the second channel (17) is closable by means of a sealing valve (20).
  3. Washing machine according to claim 2, wherein the flow resistance is formed by a second volume flow regulator (18).
  4. Washing machine according to one of the preceding claims, wherein the valve arrangement (4) has a sealing valve (6a, 6b, 6c) for each branch line (5a, 5b, 5c).
  5. Washing machine according to one of the claims 1 to 3, wherein the valve arrangement (4) has a switching valve (27) by means of which the water is guidable from the feed line (1) into each one of the branch lines (5a, 5b, 5c).
  6. Washing machine according to one of the preceding claims, wherein each branch line (5a, 5b, 5c) communicates with one respective anteroom (7a, 7b, 7c) wherein the anteroom (7a, 7b, 7c) has a first and a second exit (8a, 8b, 8c; 9a, 9b, 9c), wherein in the first through-flow position of the volume flow switching valve the water flowing into the anteroom (7a, 7b, 7c) flows out entirely through the first exit and in the second through-flow position of the volume flow switching valve the water flowing into the anteroom (7a, 7b, 7c) flows out through both exits.
  7. Washing machine according to claim 6, wherein the washing machine has a drum rotating around a rotation axis and multiple tanks (10a, 10b, 10c) for water reception arranged at the drum, with the purpose of compensating an unbalanced mass, wherein the first exits (8a, 8b, 8c) are each connected to one of the tanks (10a, 10b, 10c).
  8. Washing machine according to one of the claims 6 or 7, wherein the washing machine has multiple chambers (10a, 10b, 10c) for the reception of washing reagents, wherein the second exits (9a, 9b, 9c) communicate each with one of the chambers (10a, 10b, 10c).
  9. Washing machine according to one of the preceding claims, wherein the washing machine has a controller which is formed as to connect at a time at most one of the branch lines (5a, 5b, 5c) to the feed line (1).
  10. Washing machine according to one of the preceding claims, wherein a security valve (2) by means of which the feed line (1) may be closed, is arranged inside of the volume flow switching valve (3).
EP08021592A 2008-12-12 2008-12-12 Washing machine with volume flow switching valve Active EP2083110B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DK08021592.4T DK2083110T3 (en) 2008-12-12 2008-12-12 Washing machine with volume flow switch valve
SI200830085T SI2083110T1 (en) 2008-12-12 2008-12-12 Washing machine with volume flow switching valve
EP08021592A EP2083110B1 (en) 2008-12-12 2008-12-12 Washing machine with volume flow switching valve
DE502008001119T DE502008001119D1 (en) 2008-12-12 2008-12-12 Washing machine with flow switching valve
PL08021592T PL2083110T3 (en) 2008-12-12 2008-12-12 Washing machine with volume flow switching valve
AT08021592T ATE477364T1 (en) 2008-12-12 2008-12-12 WASHING MACHINE WITH VOLUME FLOW CHANGE VALVE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08021592A EP2083110B1 (en) 2008-12-12 2008-12-12 Washing machine with volume flow switching valve

Publications (2)

Publication Number Publication Date
EP2083110A1 EP2083110A1 (en) 2009-07-29
EP2083110B1 true EP2083110B1 (en) 2010-08-11

Family

ID=40552048

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08021592A Active EP2083110B1 (en) 2008-12-12 2008-12-12 Washing machine with volume flow switching valve

Country Status (6)

Country Link
EP (1) EP2083110B1 (en)
AT (1) ATE477364T1 (en)
DE (1) DE502008001119D1 (en)
DK (1) DK2083110T3 (en)
PL (1) PL2083110T3 (en)
SI (1) SI2083110T1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH710593A1 (en) * 2015-01-06 2016-07-15 V-Zug Ag Hydraulic system for washing machine with unbalance compensation.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1139366B (en) * 1980-06-09 1986-09-24 Mitsubishi Heavy Ind Ltd DRY CLEANING MACHINE
DE4020554A1 (en) * 1990-06-28 1992-01-02 Licentia Gmbh Device for equalising imbalance in washing during spinning - in drum washing machines, with chambers filled with imbalance liquid
JP3957616B2 (en) * 2002-11-19 2007-08-15 シャープ株式会社 Ion elution unit and equipment equipped with the same
DK1693500T3 (en) 2005-06-24 2014-11-17 V Zug Ag Washing machine with containers for compensation for imbalance

Also Published As

Publication number Publication date
EP2083110A1 (en) 2009-07-29
DK2083110T3 (en) 2010-11-08
DE502008001119D1 (en) 2010-09-23
SI2083110T1 (en) 2010-12-31
PL2083110T3 (en) 2011-01-31
ATE477364T1 (en) 2010-08-15

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