EP3018249B1 - Water-storage container for washing machine or wash-dryer - Google Patents

Water-storage container for washing machine or wash-dryer Download PDF

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Publication number
EP3018249B1
EP3018249B1 EP15189804.6A EP15189804A EP3018249B1 EP 3018249 B1 EP3018249 B1 EP 3018249B1 EP 15189804 A EP15189804 A EP 15189804A EP 3018249 B1 EP3018249 B1 EP 3018249B1
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EP
European Patent Office
Prior art keywords
water
storage container
connecting pipe
slowing
cylinder
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EP15189804.6A
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German (de)
French (fr)
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EP3018249A1 (en
Inventor
Bernd-Christian Schuller
Michael Finke
Rainer Bicker
Markus Behr
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Miele und Cie KG
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Miele und Cie KG
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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
    • 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
    • D06F37/225—Damping vibrations by displacing, supplying or ejecting a material, e.g. liquid, into or from counterbalancing pockets

Definitions

  • the invention relates to a water storage tank for a washing machine or a washer-dryer, which is connected via a free flow path and an inlet nozzle to a water supply network and via a suction nozzle and a pump connected to a supply line to a water-consuming device of the washing machine or the washer dryer, in particular a hydraulic balancing system is.
  • the EP 0 421 085 A2 describes a fresh water storage tank for a washing machine.
  • the DE 10 2008 022 739 A1 describes a water inlet device of a dishwasher.
  • One from the DE 10 2009 044 709 A1 Known drum washing machine comprises on at least one end wall of the washing tub arranged in a swingably movable in the washing machine housing about a horizontal axis of rotation rotatable washing drum a balancing ring formed of a plurality of balancing chambers.
  • the balancing chambers are filled from a arranged in the washing machine housing, can be filled from the water supply network reservoir corresponding to the measured imbalance with water and act as balancing weight for the required balancing the washing drum.
  • the water required for balancing is injected into the balancing chambers by means of injection valves or the pump acting as a valve in combination with an injection nozzle, which are controlled by a control unit.
  • a hydraulic balancing device With such a hydraulic balancing device, the noise emission and vibrations in the environment of the washing machine are reduced.
  • due to the reduced liquor container vibrations due to the reduced liquor container vibrations, a larger useful volume of the washing drum can be realized.
  • the storage container mentioned in the prior art for providing the water required for balancing is not trouble-free and reliable in the embodiment shown only schematically.
  • the invention is based on the object as a connected to the water supply network and integrated into the washing machine, as large as possible Water reservoir for a water-consuming device of the washing machine in such a way that a contamination of the water supply network excluded and at any time a trouble-free provision of a desired amount of water is guaranteed.
  • the object is achieved with a trained according to the features of claim 1 or claim 2 water storage tank.
  • the basic idea of the invention is that the inlet connection piece of the water storage container connected to a free flow path to a water supply network in a closed to the ceiling and at a distance from the bottom open, designed to brake the supplied water braking cylinder with axial and braked by a baffle water supply or by a tangential-spiral water flow generated braking effect and the water reservoir is extended in the region of its ceiling by an air collecting space, to which an outwardly leading overflow channel for discharging air and a certain level of liquid overflowing water is connected.
  • the water reservoir Due to the supply of water to the reservoir via a brake cylinder closed at the top, the water can rise slowly and evenly in the reservoir, without direct passage to the overflow connected to the air collection chamber, via which the separated from the water and stored in the air collecting space for venting the reservoir after is discharged outside. Thus, no air is conveyed to the hydraulic balancing system.
  • the additional volume available with the air collecting chamber also prevents the suction lever effect when the water supply is interrupted when the water reservoir is full. The reservoir can therefore not run over the overflow at high level. In addition, this prevents that when stopping the water supply large amounts of water flow back in the direction of the free flow path, so that contamination of the water supply network is not to be feared.
  • the water reservoir can also be used for a door sight glass flush or for one of the DE 10 2007 028617 B4 known Dampfermaschineungsein direction are used.
  • the inlet nozzle goes from the bottom of the water tank and connects to a coaxially arranged in the trained for axial water flow brake cylinder, at a distance from the closed, acting as a baffle ceiling end standpipe, wherein the air collection space outgoing overflow channel is guided in the area of the ceiling of the water reservoir to the outside.
  • the water flowing from the standpipe bounces against the cylinder ceiling, is slowed down and flows through the brake cylinder in the water reservoir in which it rises gradually.
  • an outgoing from the opening, extending in the longitudinal direction vent slot is formed in the brake cylinder.
  • the height of the vent slot defines the amount of air that is directed at backflow to the free flow path.
  • the water is braked by a tangential, spiral water flow in the brake cylinder.
  • the inlet nozzle opens tangentially into the upper end of the Abbremszylinders and in the brake cylinder, a spiral guide surface is formed. In this case, the outgoing from the air collecting space overflow channel is guided in the region of the container bottom to the outside.
  • a plurality of ventilation channels is formed on the inside of the container ceiling, which extend in the direction of the air collecting space, wherein the container ceiling extends in the region of the ventilation channels obliquely upwards to the air collecting space.
  • impact elements for discharging air to the ventilation channels are arranged at the bottom of the water reservoir in front of the suction nozzle.
  • Balancing means shown simplified comprises at the two end faces of a washing tub (not shown) rotatably arranged washing drum 1 arranged in a washing tub 1 balancing rings 2.
  • the balancing rings 2 are formed from a plurality of balancing chambers (not shown), in accordance with a measured imbalance using injectors 3, which are controlled by a control device, a certain amount of water is introduced into a specific region of the balancing rings 2.
  • the injection valves 3 as the last member of the injection system are via a supply line 4, in the a pump 5 is incorporated, to the suction nozzle 6 (see Fig. 2 ) of a water storage tank 7 connected.
  • a standpipe 12 which extends perpendicularly in the direction of the ceiling 13 of the water storage tank 7.
  • the standpipe 12 opens into a formed in the ceiling 13 of the water tank 7 air collecting space 14 and is arranged concentrically in a 13 emanating from the ceiling and at a distance above the bottom 11 Abbremszylinder 15.
  • In the brake cylinder 15 may be formed from bottom to top extending longitudinal slot (not shown) through which can escape to maximize the volume of water air. The height of the longitudinal slot is determined by the amount of air that is passed to the water reservoir 7 in return flows to the free flow path in the supply line 10.
  • To the air collection chamber 14 includes a connected to the tub of the washing machine (not shown) connected overflow channel 16.
  • a connected to the tub of the washing machine (not shown) connected overflow channel 16.
  • In the air collecting space 14 towards obliquely rising ceiling 13 of the water reservoir 7 are also 14 extending ventilation ducts 17 in the direction of air collecting space.
  • the function of the water reservoir is described as follows:
  • the supplied via the standpipe 12 water is decelerated at the end face (here the ceiling of the water reservoir) of the brake cylinder 15 and passes gradually through the opening of the brake cylinder 15 in the water reservoir 7, in which the water level slowly can rise.
  • a sloshing when filling is prevented and a direct water flow from the inlet nozzle 8 to the overflow channel 16 of the water reservoir 7 is not possible.
  • Air entrained in the brake cylinder 15 can already escape via the longitudinal slot. Air remaining in the water is deposited on the baffles 18.
  • the separated, above the gradually rising water level existing air passes along the venting channels 17 in the air collecting space 14 and can escape via the adjoining the air collecting space overflow channel 16.
  • the water reservoir is optimally vented and there is essentially no air-water mixture in the suction nozzle 6.
  • the existing with the air collection chamber 14 additional volume is prevented in the interruption of the water supply with completely filled water reservoir of the suction effect and the water reservoir can at high level do not run empty.
  • the water reservoir 7 for a Schoschauglasbe Cyprusung the washing machine and using a mounted in the lower part of the water storage tank 7 further outlet nozzle for the operation of a steam unit of the washing machine can be used.
  • the outlet for the steam unit is below the lowest water level, so that no steam can be returned to the water tank.
  • the inlet nozzle 9 is in the region of the ceiling 13 of the water reservoir 7 and opens from above tangentially into an open-top, at a distance above the bottom 11 open, vertically arranged braking cylinder 19 with a spiral guide surface and tangential water supply. Due to the tangential, spiral flow and the friction on the cylinder wall of the water jet is slowed down and the water can gradually increase in the water reservoir 7 to the height of the overflow opening 21 of the air collection chamber 14 initially perpendicular and then horizontally at the bottom of the water storage tank 7 extending overflow channel 20. The collecting air in the air collecting chamber 14 escapes through the overflow opening 21 to the outside.
  • the air collection chamber also serves here to avoid the Saugheber bin. It also prevents large amounts of water from flowing back in the direction of the free flow path when the water supply is interrupted.

Description

Die Erfindung betrifft einen Wasservorratsbehälter für eine Waschmaschine oder ein Waschtrockner, der über eine freie Fließstrecke und einen Zulaufstutzen an ein Wasserversorgungsnetz und über einen Saugstutzen und eine in eine Zuführleitung eingebundene Pumpe an eine Wasser verbrauchende Einrichtung der Waschmaschine oder des Waschtrockners, insbesondere ein hydraulisches Auswuchtsystems angeschlossen ist.The invention relates to a water storage tank for a washing machine or a washer-dryer, which is connected via a free flow path and an inlet nozzle to a water supply network and via a suction nozzle and a pump connected to a supply line to a water-consuming device of the washing machine or the washer dryer, in particular a hydraulic balancing system is.

Die EP 0 421 085 A2 beschreibt einen Frischwasser-Vorratsbehälter für eine Waschmaschine. Die DE 10 2008 022 739 A1 beschreibt eine Wassereinlaufeinrichtung einer Geschirrspülmaschine.The EP 0 421 085 A2 describes a fresh water storage tank for a washing machine. The DE 10 2008 022 739 A1 describes a water inlet device of a dishwasher.

Eine aus der DE 10 2009 044 709 A1 bekannte Trommelwaschmaschine umfasst an mindestens einer Stirnwand der in einem schwingbeweglich im Waschmaschinengehäuse angeordneten Laugenbehälter um eine horizontale Drehachse drehbaren Waschtrommel einen aus mehreren Wuchtkammern gebildeten Wuchtring. Bei einer während des Waschmaschinenbetriebs auftretenden Unwucht werden die Wuchtkammern aus einem im Waschmaschinengehäuse angeordneten, aus dem Wasserversorgungsnetz befüllbaren Vorratsbehälter entsprechend der gemessenen Unwucht mit Wasser befüllt und fungieren so als Wuchtgewicht für die erforderliche Auswuchtung der Waschtrommel. Die Zuführung des Wassers aus dem Trinkwassernetz zum Vorratsbehälter erfolgt über eine freie Fließstrecke, um ein Zurücksaugen von Waschlauge in das Trinkwassernetz und eine damit verbundene Kontamination des Trinkwassers zu verhindern. Die Zuführung des Wassers zu den Wuchtringen erfolgt über eine an den Vorratsbehälter angeschlossene Zuführleitung mit einer in diese eingebundener Pumpe, die den erforderlichen Druck und Volumenstrom bereitstellt. Das zum Auswuchten benötigte Wasser wird mithilfe von Einspritzventilen oder der als Ventil fungierenden Pumpe in Kombination mit einer Einspritzdüse, die von einer Steuereinheit angesteuert werden, in die Wuchtkammern gespritzt. Mit einer derartigen hydraulischen Auswuchteinrichtung werden die Geräuschemission sowie Vibrationen im Umfeld des Waschautomaten reduziert. Zudem kann aufgrund der verringerten Laugenbehälterschwingungen ein größeres Nutzvolumen der Waschtrommel realisiert werden. Der zur Bereitstellung des für das Auswuchten benötigten Wassers im Stand der Technik erwähnte Vorratsbehälter ist in der lediglich schematisch dargestellten Ausführungsform nicht störungsfrei und zuverlässig funktionsfähig.One from the DE 10 2009 044 709 A1 Known drum washing machine comprises on at least one end wall of the washing tub arranged in a swingably movable in the washing machine housing about a horizontal axis of rotation rotatable washing drum a balancing ring formed of a plurality of balancing chambers. In an imbalance occurring during washing machine operation, the balancing chambers are filled from a arranged in the washing machine housing, can be filled from the water supply network reservoir corresponding to the measured imbalance with water and act as balancing weight for the required balancing the washing drum. The supply of water from the drinking water network to the reservoir via a free flow path to prevent sucking back of washing liquor in the drinking water network and an associated contamination of the drinking water. The supply of water to the growth rings via a connected to the reservoir supply line with an integrated in this pump, which provides the required pressure and flow rate. The water required for balancing is injected into the balancing chambers by means of injection valves or the pump acting as a valve in combination with an injection nozzle, which are controlled by a control unit. With such a hydraulic balancing device, the noise emission and vibrations in the environment of the washing machine are reduced. In addition, due to the reduced liquor container vibrations, a larger useful volume of the washing drum can be realized. The storage container mentioned in the prior art for providing the water required for balancing is not trouble-free and reliable in the embodiment shown only schematically.

Der Erfindung liegt die Aufgabe zugrunde, einen an das Wasserversorgungsnetz angeschlossenen und in die Waschmaschine integrierten, möglichst groß dimensionierten Wasservorratsbehälter für eine Wasser verbrauchende Einrichtung der Waschmaschine so auszubilden, dass eine Kontamination des Wasserversorgungsnetzes ausgeschlossen und jederzeit eine störungsfreie Bereitstellung einer gewünschten Wassermenge gewährleistet ist. Erfindungsgemäß wird die Aufgabe mit einem gemäß den Merkmalen des Patentanspruchs 1 oder des Patentanspruchs 2 ausgebildeten Wasservorratsbehälter gelöst.The invention is based on the object as a connected to the water supply network and integrated into the washing machine, as large as possible Water reservoir for a water-consuming device of the washing machine in such a way that a contamination of the water supply network excluded and at any time a trouble-free provision of a desired amount of water is guaranteed. According to the invention the object is achieved with a trained according to the features of claim 1 or claim 2 water storage tank.

Vorteilhafte Weiterbildungen und zweckmäßige Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous developments and expedient embodiments of the invention are the subject of the dependent claims.

Der Grundgedanke der Erfindung besteht darin, dass der über eine freie Fließstrecke mit einem Wasserversorgungsnetz verbundene Zulaufstutzen des Wasservorratsbehälters in einen zu dessen Decke hin geschlossenen und im Abstand von dessen Boden offenen, zum Abbremsen des zugeführten Wassers ausgebildeten Abbremszylinder mit axialer und durch eine Prallfläche abgebremster Wasserführung oder durch eine tangential-spiralförmiger Wasserführung erzeugter Bremswirkung mündet und der Wasservorratsbehälter im Bereich seiner Decke durch einen Luftsammelraum erweitert ist, an den ein nach außen führender Überlaufkanal zum Abführen von Luft und ein bestimmtes Flüssigkeitsniveau übersteigendem Wasser angeschlossen ist.The basic idea of the invention is that the inlet connection piece of the water storage container connected to a free flow path to a water supply network in a closed to the ceiling and at a distance from the bottom open, designed to brake the supplied water braking cylinder with axial and braked by a baffle water supply or by a tangential-spiral water flow generated braking effect and the water reservoir is extended in the region of its ceiling by an air collecting space, to which an outwardly leading overflow channel for discharging air and a certain level of liquid overflowing water is connected.

Aufgrund der Wasserzufuhr zum Vorratsbehälter über einen oben geschlossenen Abbremszylinder kann das Wasser langsam und gleichmäßig im Vorratsbehälter steigen, und zwar ohne direkten Durchlauf zu dem an den Luftsammelraum angeschlossenen Überlauf, über den die aus dem Wasser abgetrennte und im Luftsammelraum gespeicherte Luft zur Entlüftung des Vorratsbehälters nach außen abgeführt wird. Es wird somit keine Luft zum hydraulischen Auswuchtsystem gefördert. Das mit dem Luftsammelraum zur Verfügung stehende zusätzliche Volumen unterbindet zudem den Saughebereffekt, wenn der Wasserzulauf bei voll gefülltem Wasservorratsbehälter unterbrochen wird. Der Vorratsbehälter kann daher bei hohem Füllstand nicht über den Überlauf leer laufen. Außerdem wird dadurch verhindert, dass beim Stoppen des Wasserzulaufs große Wassermengen in Richtung der freien Fließstrecke zurückfließen, so dass eine Kontamination des Wasserversorgungsnetzes nicht zu befürchten ist. Neben der Wasserbereitstellung für ein hydraulisches Auswuchtsystem kann der Wasservorratsbehälter auch für eine Türschauglasbespülung oder für eine aus der DE 10 2007 028617 B4 bekannten Dampferzeugungsein richtung genutzt werden.Due to the supply of water to the reservoir via a brake cylinder closed at the top, the water can rise slowly and evenly in the reservoir, without direct passage to the overflow connected to the air collection chamber, via which the separated from the water and stored in the air collecting space for venting the reservoir after is discharged outside. Thus, no air is conveyed to the hydraulic balancing system. The additional volume available with the air collecting chamber also prevents the suction lever effect when the water supply is interrupted when the water reservoir is full. The reservoir can therefore not run over the overflow at high level. In addition, this prevents that when stopping the water supply large amounts of water flow back in the direction of the free flow path, so that contamination of the water supply network is not to be feared. In addition to the provision of water for a hydraulic balancing system, the water reservoir can also be used for a door sight glass flush or for one of the DE 10 2007 028617 B4 known Dampferzeugungsein direction are used.

In einer ersten Ausführungsform des Abbremszylinders geht der Zulaufstutzen vom Boden des Wasservorratsbehälters aus und schließt an ein koaxial in dem zur axialen Wasserführung ausgebildeten Abbremszylinder angeordnetes, im Abstand von dessen geschlossener, als Prallfläche fungierender Decke endendes Standrohr an, wobei der vom Luftsammelraum ausgehende Überlaufkanal im Bereich der Decke des Wasservorratsbehälters nach außen geführt ist. Das aus dem Standrohr strömende Wasser prallt gegen die Zylinderdecke, wird dabei abgebremst und fließt über den Abbremszylinder in den Wasservorratsbehälter, in dem es allmählich ansteigt.In a first embodiment of the Abbremszylinders the inlet nozzle goes from the bottom of the water tank and connects to a coaxially arranged in the trained for axial water flow brake cylinder, at a distance from the closed, acting as a baffle ceiling end standpipe, wherein the air collection space outgoing overflow channel is guided in the area of the ceiling of the water reservoir to the outside. The water flowing from the standpipe bounces against the cylinder ceiling, is slowed down and flows through the brake cylinder in the water reservoir in which it rises gradually.

In Ausgestaltung der Erfindung ist in dem Abbremszylinder ein von dessen Öffnung ausgehender, in Längsrichtung verlaufender Entlüftungsschlitz ausgebildet. Die Höhe des Entlüftungsschlitzes gibt die Luftmenge vor, die bei Rückströmungen zur freien Fließstrecke geleitet wird.In an embodiment of the invention, an outgoing from the opening, extending in the longitudinal direction vent slot is formed in the brake cylinder. The height of the vent slot defines the amount of air that is directed at backflow to the free flow path.

In einer zweiten Ausführungsform des Abbremszylinders wird das Wasser durch eine tangentiale, spiralförmige Wasserführung im Abbremszylinder abgebremst. Der Zulaufstutzen mündet tangential in das obere Ende des Abbremszylinders und im Abbremszylinder ist eine spiralförmige Leitfläche ausgebildet. In diesem Fall ist der vom Luftsammelraum ausgehende Überlaufkanal im Bereich des Behälterbodens nach außen geführt.In a second embodiment of the deceleration cylinder, the water is braked by a tangential, spiral water flow in the brake cylinder. The inlet nozzle opens tangentially into the upper end of the Abbremszylinders and in the brake cylinder, a spiral guide surface is formed. In this case, the outgoing from the air collecting space overflow channel is guided in the region of the container bottom to the outside.

In vorteilhafter Weiterbildung der Erfindung ist an der Innenseite der Behälterdecke eine Mehrzahl von Entlüftungskanälen ausgebildet, die sich in Richtung des Luftsammelraums erstrecken, wobei die Behälterdecke im Bereich der Entlüftungskanäle schräg nach oben zum Luftsammelraum hin verläuft.In an advantageous embodiment of the invention, a plurality of ventilation channels is formed on the inside of the container ceiling, which extend in the direction of the air collecting space, wherein the container ceiling extends in the region of the ventilation channels obliquely upwards to the air collecting space.

In Ausgestaltung der Erfindung sind am Boden des Wasservorratsbehälters vor dem Saugstutzen Prallelemente zum Ableiten von Luft zu den Entlüftungskanälen angeordnet.In an embodiment of the invention, impact elements for discharging air to the ventilation channels are arranged at the bottom of the water reservoir in front of the suction nozzle.

Ein Ausführungsbeispiel der Erfindung wird anhand der Zeichnung, in der

  • Fig. 1 eine Waschtrommel mit einer Auswuchteinrichtung und zugehörigem Einspritzsystem mit einem Wasservorratsbehälter;
  • Fig. 2 eine erste Ausführungsform eines Wasservorratsbehälters; und
  • Fig. 3 eine zweite Ausführungsform eines Wasservorratsbehälters zeigt, näher erläutert.
An embodiment of the invention will be described with reference to the drawing, in which
  • Fig. 1 a washing drum with a balancing device and associated injection system with a water reservoir;
  • Fig. 2 a first embodiment of a water storage tank; and
  • Fig. 3 shows a second embodiment of a water reservoir, explained in more detail.

Eine in Fig. 1 vereinfacht dargestellte Auswuchteinrichtung umfasst an den beiden Stirnseiten einer in einem Laugenbehälter einer Waschmaschine (nicht dargestellt) drehbar angeordneten Waschtrommel 1 angeordnete Wuchtringe 2. Die Wuchtringe 2 sind aus einer Mehrzahl von Wuchtkammern (nicht dargestellt) gebildet, in die entsprechend einer gemessenen Unwucht mithilfe von Einspritzventilen 3, die durch eine Steuereinrichtung gesteuert werden, eine bestimmte Wassermenge in einen bestimmten Bereich der Wuchtringe 2 eingebracht wird. Die Einspritzventile 3 als letztes Glied des Einspritzsystems sind über eine Zuführleitung 4, in die eine Pumpe 5 eingebunden ist, an den Saugstutzen 6 (siehe Fig. 2) eines Wasservorratsbehälters 7 angeschlossen. Über einen am Wasservorratsbehälter 7 ausgebildeten Zulaufstutzen 8, 9 (siehe Fig. 2 und 3) und eine mit dem Wasserversorgungsnetz verbundene Zulaufleitung 10, in die eine freie Fließstrecke eingebunden ist, gelangt das zum Auswuchten (oder anderweitig) verwendete Wasser in den Wasservorratsbehälter 7.An in Fig. 1 Balancing means shown simplified comprises at the two end faces of a washing tub (not shown) rotatably arranged washing drum 1 arranged in a washing tub 1 balancing rings 2. The balancing rings 2 are formed from a plurality of balancing chambers (not shown), in accordance with a measured imbalance using injectors 3, which are controlled by a control device, a certain amount of water is introduced into a specific region of the balancing rings 2. The injection valves 3 as the last member of the injection system are via a supply line 4, in the a pump 5 is incorporated, to the suction nozzle 6 (see Fig. 2 ) of a water storage tank 7 connected. About a formed on the water tank 7 inlet nozzle 8, 9 (see FIGS. 2 and 3 ) and a supply line 10 connected to the water supply network, into which a free flow path is integrated, the water used for balancing (or otherwise) passes into the water reservoir 7.

Wie Fig. 2 zeigt, ist der am Boden 11 des Wasservorratsbehälters 7 angeschlossene Zulaufstutzen 8 durch ein Standrohr 12, das sich senkrecht in Richtung der Decke 13 des Wasservorratsbehäiter 7 erstreckt, verlängert. Das Standrohr 12 mündet in einen in der Decke 13 des Wasservorratsbehälters 7 ausgeformten Luftsammelraum 14 und ist konzentrisch in einem von der Decke 13 ausgehenden und im Abstand oberhalb des Bodens 11 mündenden Abbremszylinder 15 angeordnet. In dem Abbremszylinder 15 kann ein von unten nach oben verlaufender Längsschlitz (nicht dargestellt) ausgebildet sein, über den zur Maximierung des Wasservolumens Luft entweichen kann. Die Höhe des Längsschlitzes wird durch die Luftmenge vorgegeben, die bei Rückströmungen zur freien Fließstrecke in der Zulaufleitung 10 zum Wasservorratsbehälter 7 geleitet wird. An den Luftsammelraum 14 schließt ein mit dem Laugenbehälter der Waschmaschine (nicht dargestellt) verbundener Überlaufkanal 16 an. In der zum Luftsammelraum 14 hin schräg ansteigenden Decke 13 des Wasservorratsbehälters 7 sind zudem sich in Richtung Luftsammelraum 14 erstreckende Entlüftungskanäle 17 ausgebildet. Am Boden 11 des Wasservorratsbehälters 7 sind vor dem Saugstutzen 6 Prallelemente 18 angeordnet.As Fig. 2 shows, connected to the bottom 11 of the water tank 7 inlet nozzle 8 is extended by a standpipe 12 which extends perpendicularly in the direction of the ceiling 13 of the water storage tank 7. The standpipe 12 opens into a formed in the ceiling 13 of the water tank 7 air collecting space 14 and is arranged concentrically in a 13 emanating from the ceiling and at a distance above the bottom 11 Abbremszylinder 15. In the brake cylinder 15 may be formed from bottom to top extending longitudinal slot (not shown) through which can escape to maximize the volume of water air. The height of the longitudinal slot is determined by the amount of air that is passed to the water reservoir 7 in return flows to the free flow path in the supply line 10. To the air collection chamber 14 includes a connected to the tub of the washing machine (not shown) connected overflow channel 16. In the air collecting space 14 towards obliquely rising ceiling 13 of the water reservoir 7 are also 14 extending ventilation ducts 17 in the direction of air collecting space. At the bottom 11 of the water tank 7 6 impact elements 18 are arranged in front of the suction nozzle.

Die Funktion des Wasservorratsbehälters wird wie folgt beschrieben: Das über das Standrohr 12 zugeführte Wasser wird an der Stirnfläche (hier der Decke des Wasservorratsbehälters) des Abbremszylinders 15 abgebremst und gelangt allmählich über die Öffnung des Abbremszylinders 15 in den Wasservorratsbehälter 7, in dem der Wasserspiegel langsam steigen kann. Ein Wasserschwappen beim Befüllen wird verhindert und ein direkter Wasserdurchlauf vom Zulaufstutzen 8 zum Überlaufkanal 16 des Wasservorratsbehälters 7 ist nicht möglich. Im Abbremszylinder 15 mitgeführte Luft kann bereits über den Längsschlitz entweichen. Im Wasser verbliebene Luft wird an den Prallelementen 18 abgeschieden. Die abgeschiedene, oberhalb des allmählich steigenden Wasserspiegels vorhandene Luft gelangt entlang der Entlüftungskanäle17 in den Luftsammelraum 14 und kann über den an den Luftsammelraum anschließenden Überlaufkanal 16 entweichen. Der Wasservorratsbehälter wird optimal entlüftet und es gelangt im Wesentlichen kein Luft-Wasser-Gemisch in den Saugstutzen 6. Durch das mit dem Luftsammelraum 14 vorhandene zusätzliche Volumen wird bei der Unterbrechung des Wasserzulaufs bei vollständig gefülltem Wasservorratsbehälter der Saughebereffekt unterbunden und der Wasservorratsbehälter kann bei hohem Füllstand nicht leer laufen. Über den Überlaufkanal 16 kann der Wasservorratsbehälter 7 auch für eine Türschauglasbespülung des Waschautomaten und mithilfe eines im unteren Bereich des Wasservorratsbehälters 7 angebrachten weiteren Ablaufstutzens für den Betrieb einer Dampfeinheit des Waschautomaten genutzt werden. Der Ablaufstutzen für die Dampfeinheit befindet sich unter dem niedrigsten Wasserniveau, so dass kein Dampf in den Wasservorratsbehälter zurückgeführt werden kann.The function of the water reservoir is described as follows: The supplied via the standpipe 12 water is decelerated at the end face (here the ceiling of the water reservoir) of the brake cylinder 15 and passes gradually through the opening of the brake cylinder 15 in the water reservoir 7, in which the water level slowly can rise. A sloshing when filling is prevented and a direct water flow from the inlet nozzle 8 to the overflow channel 16 of the water reservoir 7 is not possible. Air entrained in the brake cylinder 15 can already escape via the longitudinal slot. Air remaining in the water is deposited on the baffles 18. The separated, above the gradually rising water level existing air passes along the venting channels 17 in the air collecting space 14 and can escape via the adjoining the air collecting space overflow channel 16. The water reservoir is optimally vented and there is essentially no air-water mixture in the suction nozzle 6. The existing with the air collection chamber 14 additional volume is prevented in the interruption of the water supply with completely filled water reservoir of the suction effect and the water reservoir can at high level do not run empty. About the overflow channel 16, the water reservoir 7 for a Türschauglasbespülung the washing machine and using a mounted in the lower part of the water storage tank 7 further outlet nozzle for the operation of a steam unit of the washing machine can be used. The outlet for the steam unit is below the lowest water level, so that no steam can be returned to the water tank.

Bei der in Fig. 3 gezeigten weiteren Ausführungsform befindet sich der Zulaufstutzen 9 im Bereich der Decke 13 des Wasservorratsbehälters 7 und mündet von oben tangential in einen oben geschlossenen, im Abstand oberhalb des Bodens 11 offenen, senkrecht angeordneten Abbremszylinder 19 mit einer spiralförmigen Leitfläche und tangentialer Wasserzufuhr. Durch die tangentiale, spiralförmige Strömung und die Reibung an der Zylinderwand wird der Wasserstrahl abgebremst und das Wasser kann im Wasservorratsbehälter 7 allmählich bis auf die Höhe der Überlauföffnung 21 eines vom Luftsammelraum 14 zunächst senkrecht und dann waagerecht am Boden des Wasservorratsbehälters 7 verlaufenden Überlaufkanals 20 steigen. Die sich im Luftsammelraum 14 sammelnde Luft entweicht über die Überlauföffnung 21 nach außen. Der Luftsammelraum dient auch hier dazu, den Saughebereffekt zu vermeiden. Er verhindert zudem, dass bei einer Unterbrechung des Wasserzulaufs große Wassermengen in Richtung der freien Fließstrecke zurückfließen.At the in Fig. 3 shown further embodiment, the inlet nozzle 9 is in the region of the ceiling 13 of the water reservoir 7 and opens from above tangentially into an open-top, at a distance above the bottom 11 open, vertically arranged braking cylinder 19 with a spiral guide surface and tangential water supply. Due to the tangential, spiral flow and the friction on the cylinder wall of the water jet is slowed down and the water can gradually increase in the water reservoir 7 to the height of the overflow opening 21 of the air collection chamber 14 initially perpendicular and then horizontally at the bottom of the water storage tank 7 extending overflow channel 20. The collecting air in the air collecting chamber 14 escapes through the overflow opening 21 to the outside. The air collection chamber also serves here to avoid the Saughebereffekt. It also prevents large amounts of water from flowing back in the direction of the free flow path when the water supply is interrupted.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

  • 1 Waschtrommel1 washing drum
  • 2 Wuchtringe2 balancing rings
  • 3 Einspritzventile3 injection valves
  • 4 Zuführleitung zu 34 supply line to 3
  • 5 Pumpe5 pump
  • 6 Saugstutzen6 suction nozzles
  • 7 Wasservorratsbehälter7 water reservoir
  • 8 Zulaufstutzen, oben8 inlet nozzles, top
  • 9 Zulaufstutzen, unten9 inlet nozzles, bottom
  • 10 Zulaufleitung zu 710 supply line to 7
  • 11 Boden von 711 floor of 7
  • 12 Standrohr12 standpipe
  • 13 Decke von 713 ceiling of 7
  • 14 Luftsammelraum14 air collection room
  • 15 Abbremszylinder, axialer Zulauf15 brake cylinder, axial inlet
  • 16 Überlaufkanal, Ablauf oben16 Overflow channel, drain above
  • 17 Entlüftungskanäle17 ventilation channels
  • 18 Prallelemente18 impact elements
  • 19 Abbremszylinder, tangentialer Zulauf19 brake cylinder, tangential inlet
  • 20 Überlaufkanal, Ablauf unten20 overflow channel, drain below
  • 21 Öffnung von 2021 opening of 20

Claims (7)

  1. Water-storage container for a washing machine or washer-dryer, comprising an inlet connecting pipe (8, 9), formed on the water-storage container, and a suction connecting pipe (6), it being possible for the inlet connecting pipe (8, 9) to be connected, via an inlet line (10) into which a free flow path is integrated, to a water-supply network, and for the suction connecting pipe (6) to be connected, via a supply line (4) into which a pump (5) is integrated, to a water-consuming device of the washing machine or the washer-dryer, in particular to a hydraulic balancing system (2, 3),
    characterised in that the inlet connecting pipe (8, 9) opens into a substantially vertical slowing cylinder (15 or 19), provided for slowing the supplied water and having axial water flow, which slowing cylinder is closed towards the cover (13) of the water-storage container (7) and is open at a distance from the bottom (11) of said water-storage container, and the water-storage container (7) is expanded in the region of its cover (13) by an air collection chamber (14) to which an overflow channel (16, 20), leading to the outside, for guiding away air and water exceeding a certain liquid level is connected, and in that the inlet connecting pipe (8) starts from the bottom (11) of the water-storage container (7) and is connected to a standpipe (12) which is arranged coaxially in the slowing cylinder (15) designed for axial water flow and which ends at a distance from the closed cover of said water-storage container, the overflow channel (16) starting from the air collection chamber (14) leading to the outside in the region of the cover (13).
  2. Water-storage container for a washing machine or a washer-dryer, comprising an inlet connecting pipe (8, 9), formed on the water-storage container, and a suction connecting pipe (6), it being possible for the inlet connecting pipe (8, 9) to be connected, via an inlet line (10) into which a free flow path is integrated, to a water-supply network, and for the suction connecting pipe (6) to be connected, via a supply line (4) into which a pump (5) is integrated, to a water-consuming device of the washing machine or the washer-dryer, in particular to a hydraulic balancing system (2, 3),
    characterised in that the inlet connecting pipe (8, 9) opens into a substantially vertical slowing cylinder (15 or 19), provided for slowing the supplied water and having tangentialhelical water flow, which slowing cylinder is closed towards the cover (13) of the water-storage container (7) and is open at a distance from the bottom (11) of said water-storage container, and the water-storage container (7) is expanded in the region of its cover (13) by an air collection chamber (14) to which an overflow channel (16, 20), leading to the outside, for guiding away air and water exceeding a certain water level is connected, and in that, in order to produce a slowed tangential and helical water flow, the inlet connecting pipe (9) opens tangentially into the upper end of the slowing cylinder (19) and a helical guide surface is formed in the slowing cylinder (15), the overflow channel (20) starting from the air collection chamber (14) leading to the outside in the region of the bottom (11).
  3. Water-storage container according to claim 1, characterised in that a ventilation slot is formed in the slowing cylinder (15) having an axial water flow, which slot starts from the opening of said slowing cylinder and extends in the longitudinal direction.
  4. Water-storage container according to any of claims 1 to 3, characterised in that a plurality of ventilation channels (17) are formed on the inside of the cover (13) and extend towards the air collection chamber (14).
  5. Water-storage container according to claim 4, characterised in that the cover (13) extends in the region of the ventilation channels (17) obliquely upwards towards the air collection chamber (14).
  6. Water-storage container according to any of claims 1 to 5, characterised in that baffle elements (18) for deflecting air towards the ventilation channels (17) are arranged on the bottom (11) of the water-storage container upstream of the suction connecting pipe (6).
  7. Water-storage container according to any of claims 1 to 5, characterised by the arrangement of an additional connecting pipe for providing water for a steam generation device and/or the use of the overflow for rinsing the inspection glass of a door.
EP15189804.6A 2014-11-04 2015-10-14 Water-storage container for washing machine or wash-dryer Active EP3018249B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014116056.8A DE102014116056A1 (en) 2014-11-04 2014-11-04 Water storage tank for a washing machine or a washer-dryer

Publications (2)

Publication Number Publication Date
EP3018249A1 EP3018249A1 (en) 2016-05-11
EP3018249B1 true EP3018249B1 (en) 2017-07-12

Family

ID=54329426

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15189804.6A Active EP3018249B1 (en) 2014-11-04 2015-10-14 Water-storage container for washing machine or wash-dryer

Country Status (2)

Country Link
EP (1) EP3018249B1 (en)
DE (1) DE102014116056A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3933007A1 (en) * 1989-10-03 1991-04-11 Bosch Siemens Hausgeraete FRESH WATER RESERVOIR FOR A DEVICE FOR THE INDIVIDUAL, DOSED CONVEYING OF SEVERAL PUMPABLE ACTIVE SUBSTANCES
DE4222945A1 (en) * 1992-07-11 1994-01-13 Licentia Gmbh Program-controlled drum washing machine and spinner - has washing aggregate with washing soln. container having mass equalisation device in form of receptacle connected to fresh water supply
DE19745824A1 (en) * 1997-10-16 1999-04-22 Bosch Siemens Hausgeraete Household appliance performing flushing functions
DE102007028617B4 (en) 2007-06-19 2010-10-28 Miele & Cie. Kg Front-loadable laundry treatment machine with steam generator
DE102008022739A1 (en) * 2008-05-08 2009-11-12 BSH Bosch und Siemens Hausgeräte GmbH dishwasher
DE102009044709B4 (en) 2009-12-01 2014-10-23 Miele & Cie. Kg Washing machine with a tub and a balancing device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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Publication number Publication date
EP3018249A1 (en) 2016-05-11
DE102014116056A1 (en) 2016-05-04

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