EP1838916B1 - Control unit for the supply of water-bearing household appliances - Google Patents

Control unit for the supply of water-bearing household appliances Download PDF

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Publication number
EP1838916B1
EP1838916B1 EP05816284A EP05816284A EP1838916B1 EP 1838916 B1 EP1838916 B1 EP 1838916B1 EP 05816284 A EP05816284 A EP 05816284A EP 05816284 A EP05816284 A EP 05816284A EP 1838916 B1 EP1838916 B1 EP 1838916B1
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EP
European Patent Office
Prior art keywords
control unit
hot water
cold
water
setting element
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
EP05816284A
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German (de)
French (fr)
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EP1838916A1 (en
Inventor
Edwin Bolduan
Horst Wiemer
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BSH Hausgeraete GmbH
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BSH Bosch und Siemens Hausgeraete GmbH
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Publication of EP1838916A1 publication Critical patent/EP1838916A1/en
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Classifications

    • 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
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/34—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/22—Condition of the washing liquid, e.g. turbidity
    • D06F34/24—Liquid temperature
    • 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 
    • D06F39/02—Devices for adding soap or other washing agents
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/16—Washing liquid temperature
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/02—Water supply
    • D06F2105/04—Water supply from separate hot and cold water inlets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87249—Multiple inlet with multiple outlet

Definitions

  • the invention relates to a control unit for water-bearing domestic appliances, in particular for washing machines, which are equipped with separate water connections for cold and hot water.
  • Centralized hot water supply systems provide a more efficient way to heat water to the required operating temperature, compared to single unit heating.
  • both energy for heating the washing or rinsing liquid is saved and the program duration shortened overall, since the time for heating the liquid to the predetermined temperature by the program control can be significantly shortened.
  • the reheating can be omitted completely, if the water temperature in the hot water network is sufficiently high and the supply of cold and hot water is controlled accordingly.
  • a distribution of the water flow following the controller can be done in the usual manner in washing machines by branching into two solenoid valves controllable inlet channels and their connection to a water diverter with three outputs DE 2 232 020 A ).
  • the three exits are each assigned to a container in which separately washing or care products for the pre-, main- and Spülissesche are stored.
  • a water diverter is described with a motorized distributor arm, in which only one supply line and only one control valve for the inlet are available.
  • the combinations of regulator and distributor described require four valves or three valves and a servomotor, which must be switched separately or controlled.
  • Disadvantageous as the complex control is the variety of items, the means for their attachment and a significant number of compounds that require increased assembly costs and operation may be the cause of disturbances due to leaks.
  • the invention is based on the object for water-bearing domestic appliances with separate cold and hot water connections indicate a control device, with their help in a simple way a continuous inflow of mixed water with an arbitrarily adjustable temperature and a branch for the different program sections prewash, main wash and rinse realized becomes. It is also an object of the invention, the number of components that the To minimize the system necessary for its attachment and its connection to the water supply system of the washing machine.
  • the control device has an actuatable by rotary or push movement mechanical actuator, via which the two supply lines for cold and hot water can be opened and closed continuously and in opposite directions, and a plurality of drain lines, which correspond to the respectively associated program section for the discharge of the mixed water be released. According to the invention, the control of the temperature of the mixed water and its distribution is carried out with only one block.
  • the controller has only one active actuator, which is moved in an embodiment of the invention only in one direction. This reduces the necessary control effort, also can be used as a drive for the actuator, a simple motor without reversing direction.
  • Another significant economic advantage results from the fact that the regulator, the water flow, mixing and distribution of water flows is realized with a single block. Compared to known solutions, this results in a considerable reduction of the parts, the means for their connection and their attachment.
  • the production of the controller is extremely efficient, in particular, reduces the cost of assembly and storage. The reduction in the number of joints required also minimizes the risk of leakage, the reliability of the washing machine as a whole is thereby increased.
  • drawings show the device according to the invention in a plane section in various important for the program flow states
  • the drawings 1a to 3b illustrate an embodiment with rotary valve 12 as an actuator
  • the drawings 4 to 6 an embodiment with spool 16 as an actuator.
  • the actuator 12 has a plurality of equal-sized inlet ports 1 to 4, of which always two openings regulate the flow of incoming cold and hot water by changing the shared cross section of the supply lines 7 and 8, and two larger outlet openings 5, 6, in the control range of Inlet openings 1 to 4 each one of several discharge lines 13, 14, 15 release.
  • the rotary valve 12 is in Fig. 1a positioned so that when the solenoid valve 9 is open cold water via the supply line 7 and the inlet opening 2 in the mixing valve designed as a rotary valve 12 and flow through the outlet opening 5 and the drain line 13 can flow.
  • the drain line 13 is connected to a Ein Hughesschale, not shown, which is stored with the provided for the pre-wash detergent.
  • the state is shown in which after adjusting the Rotary valve 12 in the direction of arrow the cold water pipe 7 is locked and hot water via the supply line 8 and can flow out via the drain line 13.
  • the hot water line is released via the inlet opening 1 and the drain line 13 remains open via the outlet opening 5. Since the prewash program usually runs with cold water, this condition plays virtually no role.
  • the supply line 8 can be blocked by the solenoid valve 10.
  • Fig. 2a shows the starting position for the main wash cycle.
  • Cold water can flow into the mixing chamber via the line 7 and the inlet opening 3 and flow out via the outlet opening 6 into the drain line 14 and be fed to the dispenser bowl for the main wash cycle.
  • the flow rate of the cold water is reduced and increases the hot water.
  • Fig. 2b 2 depicts the state in which the cold water supply line 7 is partially opened through the inlet opening 3 and the hot water supply line 8 through the inlet opening 2.
  • the hot water supply line 8 is opened further and the cold water supply line 7 blocked to the same extent.
  • each temperature of the mixed water is adjustable, which is in the range between the cold water and the hot water temperature.
  • the drain line 114 remains open via the drain opening 6 at each intermediate position of the slide 12, so that an ever-continuous volume flow of mixed water drains independently of the adjusted temperature level.
  • Fig. 3a and 3b In analogy to the operating states described above are in Fig. 3a and 3b the positions of the slide 12 for the cold or hot water supply for the program section "Rinse" shown.
  • the cold water flow through the position of the opening 4 and the flow of hot water through the opening 3 are controlled.
  • the outflow is via the opening 6 and line 15.
  • This state is conceivable in the event that the rinsing ends the washing program and the last rinse is to be carried out with hot water, which is in relation to the content of residual moisture after centrifuging Advantage is.
  • the construction of the regulator allows a steady Temperature control for each program section in the same way, so that the scope of the program design is extended without additional effort.
  • the stated solution according to the invention allows the temperature control of the incoming water flow and its branch for controlling the various Waschstoffkammem by a single mechanical actuator.
  • the solenoid valves 9, 10 have only one on / off switching function, for the actual temperature control, they have no meaning.
  • the actuators 12, 16 are moved in one direction only, while the positions for the program sections prewash, main wash and rinse are started in succession.
  • the rotary valve 12 is brought by further rotation in the preferred direction in the starting position, the piston valve 16, this is done via a spring mechanism. Both embodiments are equipped with a drive without reversing the direction of travel.
  • the starting positions for the individual program sections, in which only cold water is led to the outflow lines 13, 14, 15, are apart by the same angle of rotation or the same distance.
  • the regulator according to the invention has three outflow lines 13, 14, 15. This corresponds to the usual program in washing machines program and the associated usual storage of three different detergents or care products, which are rinsed in the program sections from their storage containers and passed into the tub.
  • An extension (also reduction) of the number of drain lines is possible without much additional effort.
  • it is necessary to increase the number of inlet and outlet ports in the actuator 12 and 16, respectively. This can be done in be carried out in a simple manner according to the same structural features as described above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Multiple-Way Valves (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Flow Control (AREA)
  • Temperature-Responsive Valves (AREA)

Abstract

A control unit for household appliances which are connected to a cold and hot water supply network (K and H). Said control unit comprises a mechanical actuator which can adjust the temperature of the mixed water from both of the water networks to a predetermined value in conjunction with a thermosensor and an intelligent evaluation system and is branched to various outlet lines at the same time as the mixed water flow. The adjusting element is embodied as a rotary valve or as a piston and is only displaced in one direction by means of the drive thereof. The outlet lines, which correspond to the program sequence, are successively controlled in the direction of displacement.

Description

Die Erfindung betrifft eine Steuereinheit für wasserführende Haushaltgeräte insbesondere für Waschautomaten, die mit getrennten Wasseranschlüssen für Kalt- und Heißwasser ausgerüstet sind.The invention relates to a control unit for water-bearing domestic appliances, in particular for washing machines, which are equipped with separate water connections for cold and hot water.

Gegenüber der Heizung im Einzelgeräten bieten zentrale Heißwasserversorgungssysteme eine effizientere Methode, Wasser auf die erforderliche Betriebstemperatur zu erwärmen. Durch den Anschluss der Haushaltgeräte an ein Heißwassemetz wird sowohl Energie zum Aufheizen der Wasch- oder Spülflüssigkeit eingespart sowie die Programmdauer insgesamt verkürzt, da die Zeit zum Aufheizen der Flüssigkeit auf die von der Programmsteuerung vorgegebene Temperatur wesentlich verkürzt werden kann. Das Nachheizen kann ganz entfallen, wenn die Wassertemperatur im Heißwassernetz ausreichend hoch ist und der Zulauf von Kalt- und Heißwasser entsprechend gesteuert wird. Es versteht sich von selbst, dass mit dem zusätzlichen Warmwasseranschluss eine spezielle, gegenüber herkömmlichen Geräten mit nur einem Kaltwasseranschluss aufwendigere, Programmgestaltung der Geräte erforderlich wird. Aufwendiger noch als diese programmtechnischen Veränderungen und damit kostenintensiver sind konstruktive Anpassungen der Geräte an die veränderte Wasserführung. Das Bestreben der Gerätehersteller geht nun dahin, dem Nutzer die positiven Möglichkeiten eines Heißwasseranschlusses zu erschließen und gleichzeitig solche Geräte preisgünstig anzubieten.Centralized hot water supply systems provide a more efficient way to heat water to the required operating temperature, compared to single unit heating. By connecting the household appliances to a hot water network, both energy for heating the washing or rinsing liquid is saved and the program duration shortened overall, since the time for heating the liquid to the predetermined temperature by the program control can be significantly shortened. The reheating can be omitted completely, if the water temperature in the hot water network is sufficiently high and the supply of cold and hot water is controlled accordingly. It goes without saying that with the additional hot water connection a special, compared to conventional devices with only one cold water connection more complex, program design of the devices is required. Even more complicated than these program changes and thus more costly are constructive adjustments of the devices to the changed water flow. The endeavor of the device manufacturers is now to open up to the user the positive possibilities of a hot water connection and at the same time to offer such devices inexpensively.

Aus handelsüblichen Haushaltgeräten sind bereits mechanische Regler bekannt geworden, die mit zwei Zulaufleitungen für Kalt- und Heißwasser und einem Abfluss für das Mischwasser ausgerüstet sind und mit einem mechanischen Stellglied, das die Durchflussmengen von Kalt- und Heißwasser durch kontinuierliches Vergrößern bzw. Verkleinern der beiden Einlassöffnungen regelt. Das mechanische Stellglied, in der Art eines Drehschiebers, regelt die Wasserströme gegensinnig, d.h. mit einer Erhöhung des Heißwassereinlaufs wird zugleich die Kaltwasserzufuhr gedrosselt. Das Innere des Reglers ist so ausgelegt, dass ein schnelles Durchmischen der einfließenden Wasserströme und ein problemloses Abfließen des Mischwassers unterstützt wird. Mit dieser mechanisch geregelten Mischwasserzufuhr ist ein kontinuierlicher und damit schneller Wassereinlauf möglich. In Verbindung mit einem Antriebsmotor mit Drehrichtungsumkehr kann das Mischwasser auf jede Temperatur eingeregelt werden, deren Wert zwischen dem des Kalt- und des Heißwassers liegt. Der Aufwand für diese Art der Regelung ist aber relativ hoch, insbesondere für den Antrieb des Stellgliedes.From commercial household appliances mechanical regulators have already become known, which are equipped with two supply lines for cold and hot water and a drain for the mixed water and with a mechanical actuator, the flow rates of cold and hot water by continuous Enlarge or reduce the size of the two inlet openings regulates. The mechanical actuator, in the manner of a rotary valve, regulates the water flows in opposite directions, ie with an increase of the hot water inlet, the cold water supply is throttled at the same time. The inside of the regulator is designed to support a fast mixing of the incoming water streams and a smooth drainage of the mixed water. With this mechanically controlled mixed water supply a continuous and thus fast water intake is possible. In conjunction with a drive motor with reverse rotation, the mixed water can be adjusted to any temperature between the cold and the hot water. The cost of this type of control is relatively high, especially for the drive of the actuator.

Eine Verteilung des Wasserstromes im Anschluss an den Regler kann in der bei Waschmaschinen üblichen Weise durch Verzweigung in zwei über Magnetventile steuerbare Zulaufkanäle und deren Anschluss an eine Wasserweiche mit drei Ausgängen erfolgen ( DE 2 232 020 A ). Die drei Ausgänge sind je einem Behälter zugeordnet, in denen getrennt Wasch- oder Pflegemittel für die Vor-, Haupt- und Spülwäsche bevorratet sind. In der DE 197 25 745 A1 ist eine Wasserweiche mit einem motorbetriebenen Verteilerarm beschrieben, bei der nur eine Zulaufleitung und nur ein Steuerventil für den Einlauf vorhanden sind. Die beschriebenen Kombinationen von Regler und Verteiler erfordern vier Ventile oder drei Ventile und einen Stellmotor, die getrennt geschaltet bzw. gesteuert werden müssen. Nachteiliger als die aufwendige Steuerung ist die Vielzahl von Einzelteilen, die Mittel zu ihrer Befestigung und eine erhebliche Anzahl von Verbindungen, die einen erhöhten Montageaufwand erfordern und beim Betrieb Ursache von Störungen durch Undichtigkeiten sein können.A distribution of the water flow following the controller can be done in the usual manner in washing machines by branching into two solenoid valves controllable inlet channels and their connection to a water diverter with three outputs DE 2 232 020 A ). The three exits are each assigned to a container in which separately washing or care products for the pre-, main- and Spülwäsche are stored. In the DE 197 25 745 A1 a water diverter is described with a motorized distributor arm, in which only one supply line and only one control valve for the inlet are available. The combinations of regulator and distributor described require four valves or three valves and a servomotor, which must be switched separately or controlled. Disadvantageous as the complex control is the variety of items, the means for their attachment and a significant number of compounds that require increased assembly costs and operation may be the cause of disturbances due to leaks.

Der Erfindung liegt die Aufgabe zu Grunde, für wasserführende Haushaltgeräte mit getrennten Kalt- und Heißwasseranschlüssen eine Steuervorrichtung anzugeben, mit deren Hilfe auf einfache Weise ein kontinuierlicher Zufluss von Mischwasser mit einer beliebig einstellbaren Temperatur sowie eine Verzweigung für die verschiedenen Programmabschnitte Vorwäsche, Hauptwäsche und Spülen realisiert wird. Es ist auch Aufgabe der Erfindung die Anzahl der Bauteile, die das System bilden, die zu seiner Befestigung und seinem Anschluss an das Wasserführungssystem der Waschmaschine notwendig sind, auf ein Minimum zu beschränken.The invention is based on the object for water-bearing domestic appliances with separate cold and hot water connections indicate a control device, with their help in a simple way a continuous inflow of mixed water with an arbitrarily adjustable temperature and a branch for the different program sections prewash, main wash and rinse realized becomes. It is also an object of the invention, the number of components that the To minimize the system necessary for its attachment and its connection to the water supply system of the washing machine.

Erfindungsgemäß wird diese Aufgabe durch die im Hauptanspruch aufgeführten Merkmale gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegebenAccording to the invention this object is achieved by the features listed in the main claim. Advantageous embodiments of the invention are specified in the subclaims

Die erfindungsgemäße Regeleinrichtung weist ein durch Dreh- oder Schubbewegung betätigbares mechanisches Stellglied auf, über das die beiden Zuflussleitungen für Kalt- und Heißwasser kontinuierlich und gegensinnig geöffnet bzw. geschlossen werden können, sowie mehrere Abflussleitungen, die entsprechend dem jeweils zugeordneten Programmabschnitt für die Ableitung des Mischwassers freigegeben werden. Gemäß der Erfindung erfolgt die Regelung der Temperatur des Mischwassers sowie dessen Verteilung mit nur einem Baustein.The control device according to the invention has an actuatable by rotary or push movement mechanical actuator, via which the two supply lines for cold and hot water can be opened and closed continuously and in opposite directions, and a plurality of drain lines, which correspond to the respectively associated program section for the discharge of the mixed water be released. According to the invention, the control of the temperature of the mixed water and its distribution is carried out with only one block.

Es ist vorteilhaft im Gehäuse des Reglers einen Thermosensor zu installieren, mit dem die Temperatur des Mischwassers unmittelbar dort erfasst wird, wo sich die Wasserströme aus der Kalt- und Heißwasserleitung mischen.It is advantageous in the case of the controller to install a thermal sensor with which the temperature of the mixed water is detected immediately where the water flows from the cold and hot water pipe mix.

Mit dieser Anordnung eines Thermosensors wird die Trägheit des Regelsystems verringert. Der Regler weist nur ein aktives Stellglied auf, das in Ausgestaltung der Erfindung nur in eine Richtung bewegt wird. Damit reduziert sich der notwendige Steuerungsaufwand, außerdem kann als Antrieb für das Stellglied ein einfacher Motor ohne Drehrichtungsumkehr eingesetzt werden. Ein weiterer wesentlicher ökonomischer Vorteil ergibt sich daraus, dass durch den Regler die Wasserführung, das Mischen und das Verteilen der Wasserströme mit einem einzigen Baustein realisiert wird. Im Vergleich zu bekannten Lösungen bewirkt dies eine erhebliche Reduzierung der Einzelteile, der Mittel zu ihrer Verbindung und ihrer Befestigung. Damit ist die Fertigung des Reglers außerordentlich rationell, insbesondere reduziert sich der Aufwand in der Montage und in der Lagerhaltung. Die Verringerung der Anzahl der notwendigen Verbindungsstellen minimiert außerdem die Gefahr eines Lecks, die Betriebssicherheit der Waschmaschine als Ganzes wird dadurch erhöht.With this arrangement of a thermal sensor, the inertia of the control system is reduced. The controller has only one active actuator, which is moved in an embodiment of the invention only in one direction. This reduces the necessary control effort, also can be used as a drive for the actuator, a simple motor without reversing direction. Another significant economic advantage results from the fact that the regulator, the water flow, mixing and distribution of water flows is realized with a single block. Compared to known solutions, this results in a considerable reduction of the parts, the means for their connection and their attachment. Thus, the production of the controller is extremely efficient, in particular, reduces the cost of assembly and storage. The reduction in the number of joints required also minimizes the risk of leakage, the reliability of the washing machine as a whole is thereby increased.

Die Erfindung wird nachstehend an zwei Ausführungsbeispielen näher erläutert. Die zugehörigen Zeichnungen zeigen

Fig. 1a bis 3b:
ein erfindungsgemäß ausgestalteter Regler mit Dreh- schieber und
Fig. 4a bis 6b:
ein erfindungsgemäß ausgestalteter Regler mit Kolben- schieber.
The invention will be explained in more detail below with reference to two exemplary embodiments. The accompanying drawings show
1a to 3b:
an inventively designed controller with rotary valve and
4a to 6b:
an inventively designed controller with piston valve.

Die Zeichnungen zeigen die erfindungsgemäße Vorrichtung in einem ebenen Schnitt in verschiedenen für den Programmablauf wichtigen Betriebszuständen, wobei die Zeichnungen 1a bis 3b eine Ausführungsform mit Drehschieber 12 als Stellglied und die Zeichnungen 4 bis 6 eine Ausführungsform mit Kolbenschieber 16 als Stellglied abbilden.The drawings show the device according to the invention in a plane section in various important for the program flow states, the drawings 1a to 3b illustrate an embodiment with rotary valve 12 as an actuator and the drawings 4 to 6 an embodiment with spool 16 as an actuator.

In den Darstellungen mit Kolbenschieber sind die analogen Betriebszustände dargestellt, Fig. 4a und für Vorwäsche, Fig. 5a und b für Hauptwäsche und Fig. 6a und b für den Spülgang. Die folgenden Ausführungen beziehen sich in erster Linie auf die bevorzugte Ausführungsform des Reglers mit dem Drehschieber 12, sie gelten sinngemäß auch für den Regler mit Kolbenschieber 16, so dass sich eine Beschreibung seiner Funktion erübrigt.In the illustrations with piston valve, the analog operating states are shown, Fig. 4a and for prewash, Fig. 5a and b for main wash and Fig. 6a and b for the rinse cycle. The following statements relate primarily to the preferred embodiment of the controller with the rotary valve 12, they apply mutatis mutandis to the controller with spool 16, so that a description of its function is unnecessary.

Das Stellglied 12 weist mehrere gleich dimensionierte Einlassöffnungen 1 bis 4 auf, von denen immer 2 Öffnungen den Strom von einlaufendem Kalt- und Heißwasser durch Änderung des freigegebenen Querschnitts der Zulaufleitungen 7 und 8 regeln, sowie zwei größere Auslassöffnungen 5, 6, die im Regelbereich der Einlassöffnungen 1 bis 4 jeweils eine von mehreren Abflussleitungen 13, 14, 15 freigeben. Zu Beginn des Waschprogramms ist der Drehschieber 12 in Fig. 1a so positioniert, dass bei geöffnetem Magnetventil 9 kaltes Wasser über die Zuleitung 7 und die Einlassöffnung 2 in den als Mischkammer ausgebildeten Drehschieber 12 einfließen und über die Auslassöffnung 5 und die Abflussleitung 13 ausfließen kann. Die Abflussleitung 13 ist mit einer nicht dargestellten Einspülschale verbunden, die mit dem für den Vorwaschgang vorgesehenen Waschmittel bevorratet ist. In Fig. 1b ist der Zustand abgebildet, bei dem nach Verstellen des Drehschiebers 12 in Pfeilrichtung die Kaltwasserleitung 7 gesperrt ist und Heißwasser über die Zuleitung 8 ein- und über die Abflussleitung 13 ausfließen kann. Dabei wird die Heißwasserleitung über die Einlassöffnung 1 freigegeben und die Abflussleitung 13 bleibt über die Auslassöffnung 5 geöffnet. Da das Vorwaschprogramm in der Regel mit Kaltwasser abläuft, spielt dieser Zustand praktisch keine Rolle. Um den Heißwasserzulauf ganz zu unterbinden, kann durch das Magnetventil 10 die Zuleitung 8 gesperrt werden.The actuator 12 has a plurality of equal-sized inlet ports 1 to 4, of which always two openings regulate the flow of incoming cold and hot water by changing the shared cross section of the supply lines 7 and 8, and two larger outlet openings 5, 6, in the control range of Inlet openings 1 to 4 each one of several discharge lines 13, 14, 15 release. At the beginning of the wash program, the rotary valve 12 is in Fig. 1a positioned so that when the solenoid valve 9 is open cold water via the supply line 7 and the inlet opening 2 in the mixing valve designed as a rotary valve 12 and flow through the outlet opening 5 and the drain line 13 can flow. The drain line 13 is connected to a Einspülschale, not shown, which is stored with the provided for the pre-wash detergent. In Fig. 1b the state is shown in which after adjusting the Rotary valve 12 in the direction of arrow the cold water pipe 7 is locked and hot water via the supply line 8 and can flow out via the drain line 13. In this case, the hot water line is released via the inlet opening 1 and the drain line 13 remains open via the outlet opening 5. Since the prewash program usually runs with cold water, this condition plays virtually no role. To completely prevent the hot water supply, the supply line 8 can be blocked by the solenoid valve 10.

Fig. 2a zeigt die Ausgangsstellung für den Hauptwaschgang. Kaltes Wasser kann über die Leitung 7 und die Einlassöffnung 3 in den Mischraum einfließen und über die Auslassöffnung 6 in die Abflussleitung 14 abfließen und der Einspülschale für den Hauptwaschgang zugeleitet werden. Durch Verdrehen des Schiebers 12 wird der Mengenstrom des Kaltwassers reduziert und der des Heißwassers erhöht. Fig. 2b bildet den Zustand ab, bei dem die Kaltwasserzuleitung 7 durch die Einlassöffnung 3 und die Heißwasserzuleitung 8 durch die Einlassöffnung 2 teilweise geöffnet sind. Durch Verdrehen des Schiebers 12 nach rechts wird die Heißwasserzuleitung 8 weiter geöffnet und die Kaltwasserzuleitung 7 in gleichem Maße weiter versperrt. Durch die Drehbewegung des Schiebers 12 ist jede Temperatur des Mischwassers einstellbar, die im Bereich zwischen der Kaltwasser- und der Heißwassertemperatur liegt. Die Abflussleitung 114 bleibt über die Abflussöffnung 6 geöffnet bei jeder Zwischenstellung des Schiebers 12, so dass ein immer stetiger Volumenstrom Mischwasser abfließt unabhängig von der eingeregelten Temperaturhöhe. Fig. 2a shows the starting position for the main wash cycle. Cold water can flow into the mixing chamber via the line 7 and the inlet opening 3 and flow out via the outlet opening 6 into the drain line 14 and be fed to the dispenser bowl for the main wash cycle. By rotating the slider 12, the flow rate of the cold water is reduced and increases the hot water. Fig. 2b 2 depicts the state in which the cold water supply line 7 is partially opened through the inlet opening 3 and the hot water supply line 8 through the inlet opening 2. By rotating the slider 12 to the right, the hot water supply line 8 is opened further and the cold water supply line 7 blocked to the same extent. By the rotational movement of the slide 12, each temperature of the mixed water is adjustable, which is in the range between the cold water and the hot water temperature. The drain line 114 remains open via the drain opening 6 at each intermediate position of the slide 12, so that an ever-continuous volume flow of mixed water drains independently of the adjusted temperature level.

In Analogie zu den oben geschilderten Betriebszuständen sind in Fig. 3a und 3b die Stellungen des Schiebers 12 für die Kalt- bzw. Heißwasserzufuhr für den Programmabschnitt "Spülen" dargestellt. Wie den Zeichnungen zu entnehmen ist, werden der Kaltwasserstrom durch die Stellung der Öffnung 4 und der Zustrom von Heißwasser über die Öffnung 3 geregelt. Der Abfluss erfolgt über die Öffnung 6 und Leitung 15. Denkbar ist dieser Zustand für den Fall, dass mit dem Spülen das Waschprogramm beendet wird und der letzte Spülgang mit heißem Wasser durchgeführt werden soll, was in Bezug auf den Gehalt von Restfeuchte nach dem Schleudern von Vorteil ist. Die Konstruktion des Reglers gestattet eine stetige Temperaturregelung für jeden Programmabschnitt in gleicher Weise, wodurch der Spielraum bzgl. der Programmgestaltung ohne zusätzlichen Aufwand erweitert ist.In analogy to the operating states described above are in Fig. 3a and 3b the positions of the slide 12 for the cold or hot water supply for the program section "Rinse" shown. As can be seen from the drawings, the cold water flow through the position of the opening 4 and the flow of hot water through the opening 3 are controlled. The outflow is via the opening 6 and line 15. This state is conceivable in the event that the rinsing ends the washing program and the last rinse is to be carried out with hot water, which is in relation to the content of residual moisture after centrifuging Advantage is. The construction of the regulator allows a steady Temperature control for each program section in the same way, so that the scope of the program design is extended without additional effort.

Die dargelegte erfindungsgemäße Lösung gestattet die Temperaturregelung des einlaufenden Wasserstromes sowie dessen Verzweigung zur Ansteuerung der verschiedenen Waschmittelkammem durch ein einziges mechanisches Stellglied. Die Magnetventile 9, 10 haben nur eine Ein-/Aus-Schaltfunktion, für die eigentliche Temperaturregelung haben sie keine Bedeutung. Über den gesamten Waschprozess werden die Stellglieder 12, 16 nur in eine Richtung bewegt, dabei werden zeitlich nacheinander die Positionen für die Programmabschnitte Vorwäsche, Hauptwäsche und Spülen angelaufen. Nach Programmablauf wird der Drehschieber 12 durch weiteres Verdrehen in Vorzugsrichtung in die Ausgangsstellung gebracht, beim Kolbenschieber 16 geschieht dies über einen Federmechanismus. Beide Ausführungsformen kommen mit einem Antrieb ohne Bewegungsrichtungsumkehr aus. Die Ausgangspositionen für die einzelnen Programmabschnitte, bei denen jeweils nur Kaltwasser zu den Abflussleitungen 13, 14, 15 geführt wird, liegen um den gleichen Drehwinkel bzw. den gleichen Abstand auseinander.The stated solution according to the invention allows the temperature control of the incoming water flow and its branch for controlling the various Waschmittelkammem by a single mechanical actuator. The solenoid valves 9, 10 have only one on / off switching function, for the actual temperature control, they have no meaning. Over the entire washing process, the actuators 12, 16 are moved in one direction only, while the positions for the program sections prewash, main wash and rinse are started in succession. After the program, the rotary valve 12 is brought by further rotation in the preferred direction in the starting position, the piston valve 16, this is done via a spring mechanism. Both embodiments are equipped with a drive without reversing the direction of travel. The starting positions for the individual program sections, in which only cold water is led to the outflow lines 13, 14, 15, are apart by the same angle of rotation or the same distance.

Ebenso sind die Drehwinkel bzw. Schubwege der Stellglieder 12 und 16 für die Temperaturregelung des Mischwassers immer gleich. Durch diese konstruktive Maßnahme ist der Steuerungsaufwand für die erfindungsgemäße Vorrichtung außerordentlich gering.Likewise, the rotation angle or thrust paths of the actuators 12 and 16 for the temperature control of the mixed water are always the same. By this design measure the control effort for the device according to the invention is extremely low.

In den dargestellten Ausführungsbeispielen weist der erfindungsgemäße Regler drei Abflussleitungen 13, 14, 15 auf. Dies entspricht der bei Waschmaschinen üblichen Programmeinteilung und der damit verbundenen üblichen Bevorratung von drei verschiedenen Wasch- bzw. Pflegemitteln, die in den Programmabschnitten aus ihren Vorratsbehältern ausgespült und in den Laugenbehälter geleitet werden. Eine Erweiterung (auch Reduzierung) der Anzahl der Abflussleitungen ist ohne großen zusätzlichen Aufwand möglich. Bei der Schaffung einer oder mehrerer zusätzlicher Abflussleitungen muss notwendigerweise die Anzahl der Einlass- und Abflussöffnungen im Stellglied 12 bzw. 16 erhöht werden. Dies kann in einfacher Weise nach den gleichen konstruktiven Merkmalen wie oben beschrieben ausgeführt werden.In the illustrated exemplary embodiments, the regulator according to the invention has three outflow lines 13, 14, 15. This corresponds to the usual program in washing machines program and the associated usual storage of three different detergents or care products, which are rinsed in the program sections from their storage containers and passed into the tub. An extension (also reduction) of the number of drain lines is possible without much additional effort. When creating one or more additional drain lines, it is necessary to increase the number of inlet and outlet ports in the actuator 12 and 16, respectively. This can be done in be carried out in a simple manner according to the same structural features as described above.

Claims (5)

  1. Mechanical control unit for the supply of water-conducting domestic appliances, which are connected with a cold water and hot water supply mains, characterised in that a mechanically movable setting element (12) has several inlet openings (1, 2, 3, 4), the opening widths and mutual spacings of which are the same and are so dimensioned with respect to the arrangement of cold and hot water feed lines (7 and 8) that in each instance two of the inlet openings (1, 2, 3, 4) can close and open the cold and hot water feed lines (7 and 8) in opposite sense and that the setting element (12) has outflow openings (5, 6), the opening widths and spacings of which are so dimensioned with respect to the arrangement of outflow lines (13, 14, 15) and the inlet openings (1, 2, 3, 4) that always only one of the outflow lines (13, 14, 15) is open and this open setting is maintained when the cold and hot water feed line (7 and 8) is open.
  2. Control unit according to claim 1, characterised in that the setting element is constructed as a slide (16) which is guided in a cylindrical housing (11) and movable by means of a linear drive.
  3. Control unit according to claim 1, characterised in that the setting element is constructed as a rotary slide (12) which is rotatably mounted in a cylindrical or spherical housing (11) and is movable by means of a rotary drive.
  4. Control unit according any one of claims 1 to 3, characterised in that the setting elements (12 and 16) are movable by the drive thereof in only one direction.
  5. Control unit according to claim 1, characterised in that a thermosensor connected by way of a measurement data line with an intelligent evaluating system, which can produce control pulses for controlling the setting element (12 or 16) in dependence on the measurement data, is arranged in the housing (11).
EP05816284A 2005-01-03 2005-12-02 Control unit for the supply of water-bearing household appliances Not-in-force EP1838916B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005000627A DE102005000627A1 (en) 2005-01-03 2005-01-03 Control unit for the supply of water-conducting household appliances
PCT/EP2005/056427 WO2006072515A1 (en) 2005-01-03 2005-12-02 Control unit for the supply of water-bearing household appliances

Publications (2)

Publication Number Publication Date
EP1838916A1 EP1838916A1 (en) 2007-10-03
EP1838916B1 true EP1838916B1 (en) 2009-03-18

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US (1) US20100012206A1 (en)
EP (1) EP1838916B1 (en)
KR (1) KR20070091309A (en)
CN (1) CN100549280C (en)
AT (1) ATE426060T1 (en)
DE (2) DE102005000627A1 (en)
WO (1) WO2006072515A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009028591A1 (en) * 2009-08-17 2011-02-24 BSH Bosch und Siemens Hausgeräte GmbH Dishwasher with connection device for several water supply lines
DE102009028588A1 (en) * 2009-08-17 2011-02-24 BSH Bosch und Siemens Hausgeräte GmbH Water-conducting household appliance
DE102019212838A1 (en) * 2019-08-27 2021-03-04 BSH Hausgeräte GmbH Arrangement for controlling an exit direction of a fluid
CN112900021B (en) * 2019-12-04 2023-12-22 博西华电器（江苏）有限公司 Household appliance
CN111962265B (en) * 2020-07-24 2023-09-15 重庆海尔洗衣机有限公司 Flow path converter, throwing device and washing machine

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Publication number Priority date Publication date Assignee Title
DE1247257B (en) * 1963-12-16 1967-08-17 Siemens Elektrogeraete Gmbh Household appliance controlled by a program control unit with several water inlet routes
US3430916A (en) * 1967-04-11 1969-03-04 Ramcon Corp Electrically operated valve
DE2232020B2 (en) * 1972-06-30 1974-05-30 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Washing machine liquid distributing manifold - has intersecting inlet and outlet spigots joined by reverse flow preventing chamber
FR2285487A1 (en) * 1974-09-23 1976-04-16 Martin Usines Fonderie Arthur Washing machine water distribution - has a double piston to determine water flow through containers holding washing agents
DE3524230A1 (en) * 1985-07-06 1987-01-08 Honeywell Bv DEVICE FOR CONTROLLING THE ROOM TEMPERATURE
IT218184Z2 (en) * 1988-09-30 1992-04-08 Zanussi A Spa Industrie IMPROVEMENT IN WATER DISTRIBUTORS FOR WASHING MACHINES
DE29609666U1 (en) * 1996-05-31 1996-08-29 AEG Hausgeräte GmbH, 90429 Nürnberg Water distribution device for a washing machine
DE19637610A1 (en) * 1996-09-16 1998-03-19 Joerg Hoenicke Combined hot and cold water supply for washing machines
DE10324352A1 (en) * 2003-05-27 2004-12-16 Aweco Appliance Systems Gmbh & Co. Kg A water inlet system for domestic clothes or dish washing machines distributes hot and cold water in measured quantity and temperature to individual compartments of wash product distribution dispensers
ITPN20030034A1 (en) * 2003-05-28 2004-11-29 Electrolux Home Products Corporatio N N V WASHING MACHINE WITH INTEGRATED GROUP OF SOLENOID VALVES.
US20050178162A1 (en) * 2004-02-13 2005-08-18 Franz Madritsch External apparatus for feeding-liquid temperature conditioning for washing machines

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DE102005000627A1 (en) 2006-07-13
ATE426060T1 (en) 2009-04-15
WO2006072515A1 (en) 2006-07-13
US20100012206A1 (en) 2010-01-21
CN100549280C (en) 2009-10-14
DE502005006909D1 (en) 2009-04-30
KR20070091309A (en) 2007-09-10
CN101094951A (en) 2007-12-26
EP1838916A1 (en) 2007-10-03

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