EP3152354B1 - Household appliance comprising an outer tub - Google Patents
Household appliance comprising an outer tub Download PDFInfo
- Publication number
- EP3152354B1 EP3152354B1 EP15727353.3A EP15727353A EP3152354B1 EP 3152354 B1 EP3152354 B1 EP 3152354B1 EP 15727353 A EP15727353 A EP 15727353A EP 3152354 B1 EP3152354 B1 EP 3152354B1
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- EP
- European Patent Office
- Prior art keywords
- coating
- household appliance
- foam
- component
- washing
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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
- D06F39/06—Arrangements for preventing or destroying scum
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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
- D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
- D06F35/005—Methods for washing, rinsing or spin-drying
- D06F35/008—Methods for washing, rinsing or spin-drying for disinfecting the tub or the drum
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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
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/02—Rotary receptacles, e.g. drums
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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
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/26—Casings; Tubs
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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
- D06F39/02—Devices for adding soap or other washing agents
Definitions
- the present invention relates to a household appliance with a component for guiding or receiving a wash liquor.
- the publication WO 2013/060602 A2 describes a washing machine with a laundry drum, which is equipped with a hydrophobic coating.
- the publication EP 2 025 798 A2 describes a washing-up device for a washing machine, which has hydrophobic and hydrophilic surfaces.
- the publication WO 2013/092422 A1 describes a component of a household appliance with a coating.
- the publication DE 10 2009 027 933 A1 describes a method for detecting foam in a liquor container filled with a wash liquor of a program-controlled laundry treatment machine.
- EP 12 981 95 B1 describes a method for the semiautomatic dosing of detergents and cleaning agents such as those used for dishwashing in dishwashers.
- the publication DE 10 2008 010 517 A1 shows a domestic appliance for drying laundry, which has a component flow around the process air.
- the component has a substrate made of metal or plastic, which has a surface facing the process air. This surface carries an adhesion of a foreign particle avoiding coating.
- the publication DE 10 2007 036 007 A1 shows a Ein Hughesvortechnische for a washing machine and washing machine.
- the dispenser has a chamber, the surfaces of the bottom of the chamber being hydrophobic and the surfaces of the side walls of the chamber being hydrophilic.
- the publication JP H08 24478 A discloses a washing machine comprising a storage tank whose inner surfaces are provided with silicone.
- the object is achieved by a domestic appliance having a component for guiding or receiving a wash liquor, in which the component has a coating for reducing the surface energy of a contact surface of the component with the wash liquor.
- the coating is a foam inhibitor.
- the coating acts as a foam inhibitor, ie in one embodiment it is a foam inhibitor or, for example, comprises one.
- the coating advantageously prevents foaming during its formation.
- the foam bubbles are successfully destroyed and / or minimized if the surface tension of an insoluble material of the coating which comes into contact with the foam is smaller than the surface tension of the foam itself.
- the coating is preferably formed, foaming to prevent its formation.
- the coating is preferably designed to destroy foam bubbles and / or to reduce them.
- the coating comprises an insoluble material whose surface tension is less than or equal to a predetermined surface tension limit.
- the surface tension of the insoluble material is less than the surface tension of the foam.
- the predetermined surface tension limit depends in particular on the surface tension of the foam.
- a foam inhibitor may preferably be referred to as a defoamer. This means, for example, that the coating is in particular a defoamer or comprises such.
- the coating according to one embodiment may comprise silicone oil (s) and / or polydimethylsiloxane as foam inhibitors.
- the coating may preferably be arranged at any point of the component for receiving a wash liquor. If the coating is arranged, for example, at an exit point of the wash liquor, the formation of foam directly at the exit point can be prevented.
- the household appliance comprises a plurality of components, each of which is provided with a coating in the sense of the present invention.
- the respective coating of the components may for example be the same or preferably different.
- a household appliance is a device that is used for household management. This may be a large household appliance, such as a washing machine, a tumble dryer, a dishwasher or a refrigerator, such as a refrigerator. a refrigerator, a freezer or a fridge-freezer. But this can also be a small household appliance, such as a water heater, a coffee machine or a food processor.
- the household appliance with a component for guiding or receiving a wash liquor is in one embodiment a washing machine.
- a washing machine is hereinafter understood in particular a household washing machine, ie a washing machine, which is used for household management in households, and in particular serves to treat household laundry in a household usual amount or a household frequency.
- this washing machine can also have a drying function.
- a washing machine with such an additional drying function is also called a washer-dryer.
- the coating comprises silicone.
- the coating is a silicone film.
- the coating comprises polydimethylsiloxane.
- the coating comprises a hydrophobic material.
- the coating is brushed or sprayed onto the component.
- the technical advantage is achieved that the coating can be applied in a simple manner.
- the coating is formed by a film which is adhered to the component.
- the component is a tub for a washing drum.
- the coating is arranged on a side wall of the tub.
- the coating is arranged in a horizontal strip on the inside of the tub.
- the component is an induction bowl for introducing a washing substance.
- the coating is arranged in a trough of the dispenser tray.
- the coating is arranged in a pump chamber.
- the pump chamber is completely lined with the coating.
- the component is a vent hose, a supply air hose, a supply hose, a drain hose or a drain hose.
- Fig. 1 shows a schematic view of a washer dryer representative of a general household appliance 100.
- the household appliance 100 includes a door 109 for loading the household appliance 100 with laundry.
- the laundry is washed inside the household appliance 100 and then dried.
- the domestic appliance 100 comprises a pull-out dispenser tray 111 into which different liquid substances are added, which during the washing or drying process to the laundry be supplied.
- the dispenser shell 111 is, for example, a pull-out drawer-like plastic part with a dispenser tray.
- Fig. 2 shows a schematic view of a tub as a component 101 for receiving a wash liquor 107.
- the tub has a coating 103 for reducing the surface energy of a contact surface 105 of the component 101 with the wash liquor.
- This coating 103 acts as a foam inhibitor.
- the coating 103 prevents the formation of foam during its formation. The foam bubbles are successfully destroyed when the surface tension of an insoluble material of the coating 103 which comes in contact with the foam is smaller than the surface tension of the foam itself.
- the coating 103 may include silicone oils and polydimethylsiloxane as foam inhibitors.
- the coating 103 may be disposed at any location of the component 101 for receiving a wash liquor 107. If the coating 103 is arranged, for example, at an exit point of the wash liquor, the formation of foam directly at the exit point can be prevented.
- Fig. 3 shows a cup 113 with no coating and a cup 115 with coating 103.
- the two cups 113 and 115 are prepared with an equal detergent concentration so that upon vigorous shaking the same amount of foam 117 is formed.
- the inside of the cup 115 has been previously painted with silicone.
- the inside of the cup 113 is untreated.
- the foam 117 loses its stability at the contact surfaces with the coating and disintegrates. After a short time, a ring is formed that allows the core to decay. As a result, the foam 117 decomposes completely after a short time.
- the advantage is that the foam 117 is already prevented from becoming stable during formation.
- the coating 103 may be arranged as a foam inhibitor, for example in a suds container.
- the coating 103 By arranging the coating 103 in the tub, generation of foam in the tub can be suppressed, so that operation of heating or water consumption can be reduced.
- individual program sections, such as increased rinsing, can be skipped.
- the coating 103 as a foam inhibitor can be arranged, for example, in the dispensing tray 103, a venting or inlet hose. Thereby, a foam leakage from the household appliance 100 can be prevented.
- the coating 103 as a foam inhibitor can be arranged, for example, in a pump chamber, a pump-down or drain hose. This prevents reduced pump performance, which can be caused by foam.
- the domestic appliance 100 can reduce a TCR ("total cost of risk") in terms of foam. Foam formation inside the household appliance 100 is reduced. Technical measures for foam detection can be reduced and the performance of the household appliance can be increased. In addition, leakage from the foam from the household appliance 100 can be prevented directly.
- TCR total cost of risk
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Detergent Compositions (AREA)
- Paints Or Removers (AREA)
Description
Die vorliegende Erfindung betrifft ein Haushaltsgerät mit einem Bauteil zum Führen oder Aufnehmen einer Waschlauge.The present invention relates to a household appliance with a component for guiding or receiving a wash liquor.
In Haushaltsgeräten, wie beispielsweise Waschmaschinen, kann Schaum entstehen. Der Schaum beim Waschen verschlechtert die Waschleistung. Beim Abpumpen
kann der Schaum auch eine Verschlechterung der Spülleistung verursachen. Außerdem kann der Schaum aus dem Haushaltsgerät austreten. Eine dichte Mischung von Luft und Waschlauge verringert zudem die Waschmechanik zwischen den einzelnen Wäschestücken. Im Sinnerschen Kreis, der eine Waschleistung beschreibt, spielt die Waschmechanik neben der Chemie, der Zeit und der Temperatur eine wichtige Rolle.In household appliances, such as washing machines, foam can arise. The foam during washing worsens the washing performance. When pumping
The foam can also cause a deterioration of the flushing performance. In addition, the foam can escape from the household appliance. A dense mixture of air and wash water also reduces the washing mechanics between the individual items of laundry. In the Sinner circle, which describes a washing performance, washing mechanics plays an important role alongside chemistry, time and temperature.
Bisher sind verfahrenstechnische Maßnahmen verwendet worden, um entstandenen Schaum beim Waschen, Schleudern oder Abpumpen zu entfernen. Diese Maßnahmen sind häufig mit einem Mehrverbrauch an Wasser und Zeit verbunden, so dass diese für die Umwelt oder den Kunden nicht von Vorteil sind.So far, procedural measures have been used to remove the resulting foam during washing, spinning or pumping. These measures are often associated with an increased consumption of water and time, so that they are not beneficial to the environment or the customer.
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Es ist die der Erfindung zugrundeliegende Aufgabe, ein Haushaltsgerät anzugeben, bei dem ein Waschprozess effizienter durchgeführt werden kann.It is the object underlying the invention to provide a household appliance, in which a washing process can be performed more efficiently.
Diese Aufgabe wird durch den Gegenstand mit den Merkmalen nach dem unabhängigen Anspruch gelöst. Vorteilhafte Ausführungsformen der Erfindung sind Gegenstand der Figuren, der Beschreibung und der abhängigen Ansprüche.This object is achieved by the subject matter having the features of the independent claim. Advantageous embodiments of the invention are the subject of the figures, the description and the dependent claims.
Gemäß einem Aspekt der Erfindung wird die Aufgabe durch ein Haushaltsgerät mit einem Bauteil zum Führen oder Aufnehmen einer Waschlauge gelöst, bei dem das Bauteil eine Beschichtung zum Verringern der Oberflächenenergie einer Kontaktfläche des Bauteils mit der Waschlauge aufweist. Die Beschichtung ist ein Schauminhibitor. Dadurch wird beispielsweise der technische Vorteil erreicht, dass auf lösliche Schauminhibitoren in der Waschlauge verzichtet werden kann und Schaum im Bauteil auf schnelle Weise aufgelöst werden kann.According to one aspect of the invention, the object is achieved by a domestic appliance having a component for guiding or receiving a wash liquor, in which the component has a coating for reducing the surface energy of a contact surface of the component with the wash liquor. The coating is a foam inhibitor. As a result, the technical advantage is achieved, for example, that can be dispensed with soluble foam inhibitors in the wash and foam in the component can be resolved in a quick manner.
Die Beschichtung wirkt als Schauminhibitor, ist also nach einer Ausführungsform ein Schauminhibitor oder umfasst beispielsweise einen solchen. Die Beschichtung verhindert in vorteilhafter Weise die Schaumbildung schon bei seiner Entstehung. Die Schaumblasen werden erfolgreich zerstört und/oder verkleinert, wenn die Oberflächenspannung eines unlöslichen Materials der Beschichtung, das mit dem Schaum in Berührung kommt, kleiner ist als die Oberflächenspannung des Schaums selbst. Das heißt also beispielsweise, dass die Beschichtung vorzugsweise ausgebildet ist, eine Schaumbildung bei seiner Entstehung zu verhindern. Die Beschichtung ist vorzugsweise ausgebildet, Schaumblasen zu zerstören und/oder zu verkleinern.The coating acts as a foam inhibitor, ie in one embodiment it is a foam inhibitor or, for example, comprises one. The coating advantageously prevents foaming during its formation. The foam bubbles are successfully destroyed and / or minimized if the surface tension of an insoluble material of the coating which comes into contact with the foam is smaller than the surface tension of the foam itself. This means, for example, that the coating is preferably formed, foaming to prevent its formation. The coating is preferably designed to destroy foam bubbles and / or to reduce them.
In einer Ausführungsform umfasst die Beschichtung ein unlösliches Material, dessen Oberflächenspannung kleiner oder kleiner gleich einem vorbestimmten Oberflächenspannungsgrenzwert ist. Vorzugsweise ist die Oberflächenspannung des unlöslichen Materials kleiner als die Oberflächenspannung des Schaums. Der vorbestimmte Oberflächenspannungsgrenzwert hängt insbesondere von der Oberflächenspannung des Schaums ab.In one embodiment, the coating comprises an insoluble material whose surface tension is less than or equal to a predetermined surface tension limit. Preferably, the surface tension of the insoluble material is less than the surface tension of the foam. The predetermined surface tension limit depends in particular on the surface tension of the foam.
Ein Schauminhibitor kann vorzugsweise als ein Entschäumer bezeichnet werden. Das heißt beispielsweise, dass die Beschichtung insbesondere ein Entschäumer ist oder einen solchen umfasst.A foam inhibitor may preferably be referred to as a defoamer. This means, for example, that the coating is in particular a defoamer or comprises such.
Die Beschichtung kann nach einer Ausführungsform Silikonöl(e) und/oder Polydimethylsiloxan als Schauminhibitoren umfassen.The coating according to one embodiment may comprise silicone oil (s) and / or polydimethylsiloxane as foam inhibitors.
Die Beschichtung kann vorzugsweise an jeder Stelle des Bauteils zum Aufnehmen einer Waschlauge angeordnet sein. Ist die Beschichtung beispielsweise an einer Austrittsstelle der Waschlauge angeordnet, kann die Entstehung von Schaum direkt an der Austrittsstelle verhindert werden.The coating may preferably be arranged at any point of the component for receiving a wash liquor. If the coating is arranged, for example, at an exit point of the wash liquor, the formation of foam directly at the exit point can be prevented.
In einer Ausführungsform umfasst das Haushaltsgerät mehrere Bauteile, die jeweils mit einer Beschichtung im Sinne der vorliegenden Erfindung versehen sind. Die jeweilige Beschichtung der Bauteile kann beispielsweise gleich oder vorzugsweise unterschiedlich ausgebildet sein.In one embodiment, the household appliance comprises a plurality of components, each of which is provided with a coating in the sense of the present invention. The respective coating of the components may for example be the same or preferably different.
Unter einem Haushaltsgerät wird ein Gerät verstanden, das zur Haushaltsführung eingesetzt wird. Das kann ein Haushaltsgroßgerät sein, wie beispielsweise eine Waschmaschine, ein Wäschetrockner, eine Geschirrspülmaschine oder ein Kältegerät, wie z.B. ein Kühlschrank, ein Gefrierschrank oder eine Kühlgefrierkombination. Das kann aber auch ein Haushaltskleingerät sein, wie beispielsweise ein Warmwasserbereiter, ein Kaffeevollautomat oder eine Küchenmaschine.A household appliance is a device that is used for household management. This may be a large household appliance, such as a washing machine, a tumble dryer, a dishwasher or a refrigerator, such as a refrigerator. a refrigerator, a freezer or a fridge-freezer. But this can also be a small household appliance, such as a water heater, a coffee machine or a food processor.
Das Haushaltsgerät mit einem Bauteil zum Führen oder Aufnehmen einer Waschlauge ist nach einer Ausführungsform eine Waschmaschine. Unter einer Waschmaschine wird im Folgenden insbesondere eine Haushaltswaschmaschine verstanden, also eine Waschmaschine, die zur Haushaltsführung in Haushalten eingesetzt wird, und insbesondere dazu dient haushaltsübliche Wäsche in einer haushaltüblichen Menge bzw. einer haushaltsüblichen Häufigkeit zu behandeln. Diese Waschmaschine kann beispielsweise auch zusätzlich eine Trocknungsfunktion aufweisen. Eine Waschmaschine mit solch einer zusätzlichen Trocknungsfunktion wird auch Waschtrockner genannt.The household appliance with a component for guiding or receiving a wash liquor is in one embodiment a washing machine. Under a washing machine is hereinafter understood in particular a household washing machine, ie a washing machine, which is used for household management in households, and in particular serves to treat household laundry in a household usual amount or a household frequency. For example, this washing machine can also have a drying function. A washing machine with such an additional drying function is also called a washer-dryer.
In einer vorteilhaften Ausführungsform des Haushaltsgerätes umfasst die Beschichtung Silikon. Dadurch wird beispielsweise der technische Vorteil erreicht, dass die Oberflächenenergie effizient gesenkt werden kann.In an advantageous embodiment of the household appliance, the coating comprises silicone. As a result, for example, the technical advantage is achieved that the surface energy can be reduced efficiently.
In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes ist die Beschichtung ein Silikonfilm. Dadurch wird beispielsweise der technische Vorteil erreicht, dass die Beschichtung mit einem geringen Materialeinsatz hergestellt werden kann.In a further advantageous embodiment of the household appliance, the coating is a silicone film. As a result, the technical advantage is achieved, for example, that the coating can be produced with a low material usage.
In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes umfasst die Beschichtung Polydimethylsiloxan. Dadurch wird beispielsweise ebenfalls der technische Vorteil erreicht, dass die Oberflächenenergie effizient gesenkt werden kann.In a further advantageous embodiment of the household appliance, the coating comprises polydimethylsiloxane. As a result, for example, the technical advantage is achieved that the surface energy can be reduced efficiently.
In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes umfasst die Beschichtung ein hydrophobes Material. Dadurch wird beispielsweise der technische Vorteil erreicht, dass der Schaum in schneller Weise aufgelöst werden kann.In a further advantageous embodiment of the household appliance, the coating comprises a hydrophobic material. As a result, for example, the technical advantage is achieved that the foam can be dissolved in a fast manner.
In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes ist die Beschichtung auf das Bauteil aufgestrichen oder aufgesprüht. Dadurch wird beispielsweise der technische Vorteil erreicht, dass die Beschichtung in einfacher Weise aufgetragen werden kann.In a further advantageous embodiment of the household appliance, the coating is brushed or sprayed onto the component. As a result, for example, the technical advantage is achieved that the coating can be applied in a simple manner.
In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes ist die Beschichtung durch eine Folie gebildet, die auf das Bauteil aufgeklebt ist. Dadurch wird beispielsweise der technische Vorteil erreicht, dass die Beschichtung schnell angebracht werden kann.In a further advantageous embodiment of the household appliance, the coating is formed by a film which is adhered to the component. As a result, for example, the technical advantage is achieved that the coating can be mounted quickly.
In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes ist das Bauteil ein Laugenbehälter für eine Waschtrommel. Dadurch wird beispielsweise der technische Vorteil erreicht, dass das Entstehen von Schaum im Inneren des Laugenbehälters verhindert und ein Wasserverbrauch des Haushaltsgerätes verringert wird.In a further advantageous embodiment of the household appliance, the component is a tub for a washing drum. As a result, for example, the technical advantage is achieved that prevents the formation of foam inside the tub and a water consumption of the household appliance is reduced.
In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes ist die Beschichtung an einer Seitenwand des Laugenbehälters angeordnet. Dadurch wird beispielsweise der technische Vorteil erreicht, dass der Schaum effizient aufgelöst werden kann.In a further advantageous embodiment of the household appliance, the coating is arranged on a side wall of the tub. As a result, for example, the technical advantage is achieved that the foam can be dissolved efficiently.
In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes ist die Beschichtung in einem waagerechten Streifen an der Innenseite des Laugenbehälters angeordnet. Dadurch wird beispielsweise der technische Vorteil erreicht, dass der Schaum auf Höhe eines Flüssigkeitspegels mit einem geringen Einsatz an Beschichtungsmaterial aufgelöst werden kann.In a further advantageous embodiment of the household appliance, the coating is arranged in a horizontal strip on the inside of the tub. As a result, for example, the technical advantage is achieved that the foam can be dissolved at the level of a liquid level with a small amount of coating material.
In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes ist das Bauteil eine Einspülschale zum Eingeben einer Waschsubstanz. Dadurch wird beispielsweise der technische Vorteil erreicht, dass das Entstehen von Schaum beim Einspülen einer Waschsubstanz verhindert wird.In a further advantageous embodiment of the household appliance, the component is an induction bowl for introducing a washing substance. As a result, for example, the technical advantage is achieved that the formation of foam during the flushing of a washing substance is prevented.
In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes ist die Beschichtung in einer Wanne der Einspülschale angeordnet. Dadurch wird beispielsweise der technische Vorteil erreicht, dass die gesamte Oberfläche der Wanne schaumverhindernd wirkt.In a further advantageous embodiment of the household appliance, the coating is arranged in a trough of the dispenser tray. As a result, for example, the technical advantage is achieved that the entire surface of the tub acts foam-preventing.
In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes ist die Beschichtung in einer Pumpenkammer angeordnet. Dadurch wird beispielsweise der technische Vorteil erreicht, dass eine Pumpleistung gesteigert werden kann.In a further advantageous embodiment of the household appliance, the coating is arranged in a pump chamber. As a result, for example, the technical advantage is achieved that a pump power can be increased.
In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes ist die Pumpenkammer vollständig mit der Beschichtung ausgekleidet. Dadurch wird beispielsweise der technische Vorteil erreicht, dass eine Bildung von Schaum in der Pumpenkammer effizient unterdrückt wird.In a further advantageous embodiment of the household appliance, the pump chamber is completely lined with the coating. As a result, for example, the technical advantage is achieved that a formation of foam in the pump chamber is effectively suppressed.
In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes ist das Bauteil ein Entlüftungsschlauch, ein Zuluftschlauch, ein Zulaufschlauch, ein Abpumpschlauch oder ein Ablaufschlauch. Dadurch wird beispielsweise der technische Vorteil erreicht, dass bereits bei der Zuleitung oder Ableitung ein Entstehen von Schaum verhindert wird.In a further advantageous embodiment of the household appliance, the component is a vent hose, a supply air hose, a supply hose, a drain hose or a drain hose. As a result, the technical advantage is achieved, for example, that even at the inlet or outlet, a generation of foam is prevented.
Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im Folgenden näher beschrieben.Embodiments of the invention are illustrated in the drawings and will be described in more detail below.
Es zeigen:
- Fig. 1
- eine schematische Ansicht eines Haushaltsgerätes; und
- Fig. 2
- eine schematische Ansicht eines Laugenbehälters, und
- Fig. 3
- einen Becher ohne Beschichtung und einen Becher mit Beschichtung.
- Fig. 1
- a schematic view of a household appliance; and
- Fig. 2
- a schematic view of a tub, and
- Fig. 3
- a cup without coating and a cup with coating.
Die Beschichtung 103 kann an jeder Stelle des Bauteils 101 zum Aufnehmen einer Waschlauge 107 angeordnet sein. Ist die Beschichtung 103 beispielsweise an einer Austrittsstelle der Waschlauge angeordnet, kann die Entstehung von Schaum direkt an Austrittsstelle verhindert werden.The
Im Becher 115 erkennt man, wie der Schaum 117 an den Kontaktflächen mit der Beschichtung die Stabilität verliert und zerfällt. Nach kurzer Zeit bildet sich ein Ring, der ermöglicht, dass der Kern auch in sich zerfällt. Dadurch zerfällt der Schaum 117 nach kurzer Zeit in sich komplett. Der Vorteil besteht darin, dass der Schaum 117 schon bei der Entstehung daran gehindert wird, sich zu stabilisieren.In the
In einem Haushaltsgerät 100 kann die Beschichtung 103 als Schauminhibitor beispielsweise in einem Laugenbehälter angeordnet sein. Durch die Anordnung der Beschichtung 103 in dem Laugenbehälter kann ein Entstehen von Schaum in dem Laugenbehälter unterdrückt werden, so dass ein Betrieb einer Heizung oder ein Wasserverbrauch verringert werden. Zudem können einzelne Programmabschnitte, wie beispielsweise vermehrtes Spülen, übersprungen werden.In a
Die Beschichtung 103 als Schauminhibitor kann beispielsweise in der Einspülschale 103, einem Entlüftungs- oder Zulaufschlauch angeordnet sein. Dadurch kann ein Schaumaustritt aus dem Haushaltsgerät 100 verhindert werden.The
Die Beschichtung 103 als Schauminhibitor kann beispielsweise in einer Pumpenkammer, einem Abpump- oder Ablaufschlauch angeordnet sein. Dadurch wird eine reduzierte Pumpenleistung verhindert, die durch Schaum verursacht sein kann.The
Durch das Haushaltsgerät 100 kann eine TCR ("Total Cost of Risk", auf Deutsch: Gesamtkostenrisiko)-Quote durch Schaum reduziert werden. Die Schaumentstehung im Inneren des Haushaltsgerätes 100 wird verringert. Technische Maßnahmen zur Schaumerkennung können verringert und die Leistung des Haushaltsgerätes erhöht werden. Zudem kann ein Austritt vom Schaum aus dem Haushaltsgerät 100 direkt verhindert werden.The
Alle in Verbindung mit einzelnen Ausführungsformen der Erfindung erläuterten und gezeigten Merkmale können in unterschiedlicher Kombination in dem erfindungsgemäßen Gegenstand vorgesehen sein, um gleichzeitig deren vorteilhafte Wirkungen zu realisieren.All of the features explained and shown in connection with individual embodiments of the invention may be provided in different combinations in the article according to the invention in order to simultaneously realize their advantageous effects.
Der Schutzbereich der vorliegenden Erfindung ist durch die Ansprüche gegeben und wird durch die in der Beschreibung erläuterten oder den Figuren gezeigten Merkmale nicht beschränkt.The scope of the present invention is given by the claims and is not limited by the features illustrated in the specification or shown in the figures.
- 100100
- Haushaltsgeräthousehold appliance
- 101101
- Bauteilcomponent
- 103103
- Beschichtungcoating
- 105105
- Kontaktflächecontact area
- 107107
- Waschlaugesuds
- 109109
- Gerätetürdoor
- 111111
- Einspülschaledispenser tray
- 113113
- Bechercup
- 115115
- Bechercup
- 117117
- Schaumfoam
Claims (9)
- Household appliance (100) having a component (101) for guiding or receiving a washing liquor (107), wherein the component (101) has a coating (103) for reducing the surface energy of a contact surface (105) of the component (101) with the washing liquor (107), such that the coating (103) acts as a foam inhibitor, such that the coating (103) can prevent foam formation even as it arises, wherein the foam bubbles can be successfully destroyed and/or reduced in size when the surface tension of an indissoluble material of the coating (103) which comes into contact with the foam is less than the surface tension of the foam itself, characterised in that the component (101) is an outer tub for a washing drum.
- Household appliance (100) according to claim 1, characterised in that the coating (103) comprises silicone.
- Household appliance (100) according to claim 2, characterised in that the coating (103) is a silicone film.
- Household appliance (100) according to one of the preceding claims, characterised in that the coating (103) comprises polydimethylsiloxane.
- Household appliance (100) according to one of the preceding claims, characterised in that the coating (103) comprises a hydrophobic material.
- Household appliance (100) according to one of the preceding claims, characterised in that the coating (103) is painted onto the component (101).
- Household appliance (100) according to one of the preceding claims, characterised in that the coating (103) is formed by a foil which is adhered to the component (101).
- Household appliance (100) according to one of the preceding claims, characterised in that the coating (101) is arranged on a side wall of the outer tub.
- Household appliance (100) according to one of the preceding claims, characterised in that the coating (101) is arranged in a horizontal strip on the inside of the outer tub.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL15727353T PL3152354T3 (en) | 2014-06-04 | 2015-05-29 | Household appliance comprising an outer tub |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014210624.9A DE102014210624A1 (en) | 2014-06-04 | 2014-06-04 | Household appliance with a tub |
PCT/EP2015/062014 WO2015185458A1 (en) | 2014-06-04 | 2015-05-29 | Household appliance comprising an outer tub |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3152354A1 EP3152354A1 (en) | 2017-04-12 |
EP3152354B1 true EP3152354B1 (en) | 2019-07-24 |
Family
ID=53298342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15727353.3A Active EP3152354B1 (en) | 2014-06-04 | 2015-05-29 | Household appliance comprising an outer tub |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3152354B1 (en) |
CN (1) | CN106460297B (en) |
DE (1) | DE102014210624A1 (en) |
PL (1) | PL3152354T3 (en) |
WO (1) | WO2015185458A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0824478A (en) * | 1994-07-20 | 1996-01-30 | Sharp Corp | Drum type washing machine |
EP2022884A1 (en) * | 2007-07-30 | 2009-02-11 | Miele & Cie. KG | Dispensing unit for a washing machine and washing machine |
WO2013092422A1 (en) * | 2011-12-20 | 2013-06-27 | BSH Bosch und Siemens Hausgeräte GmbH | Component of a domestic appliance with a coating |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19739384A1 (en) * | 1997-09-09 | 1999-03-11 | Henkel Kgaa | Detergent tablets with improved solubility |
DE10148571B4 (en) | 2001-10-01 | 2004-01-15 | Henkel Kgaa | Semi-automatic dosing |
DE102007036009A1 (en) * | 2007-07-30 | 2009-02-19 | Miele & Cie. Kg | Einspülvorrichtung for a washing machine and washing machine |
DE102008010517A1 (en) * | 2008-02-22 | 2009-09-03 | BSH Bosch und Siemens Hausgeräte GmbH | Domestic appliance for drying laundry, which has a component that can be flowed around by process air |
DE102009027933A1 (en) | 2009-07-22 | 2011-01-27 | BSH Bosch und Siemens Hausgeräte GmbH | Method for recognizing foam in tub of drum-type washing machine during main washing phase, involves evaluating temperature curves by continuous determination of gradients of temperature curves over preset time period |
WO2012075611A1 (en) * | 2010-12-10 | 2012-06-14 | The Procter & Gamble Company | Laundry detergents |
WO2013060602A2 (en) * | 2011-10-24 | 2013-05-02 | BSH Bosch und Siemens Hausgeräte GmbH | A washing machine having a component |
CN103272411B (en) * | 2013-06-07 | 2015-03-18 | 南京四新科技应用研究所有限公司 | Foam inhibitor and preparation method thereof |
-
2014
- 2014-06-04 DE DE102014210624.9A patent/DE102014210624A1/en not_active Ceased
-
2015
- 2015-05-29 EP EP15727353.3A patent/EP3152354B1/en active Active
- 2015-05-29 WO PCT/EP2015/062014 patent/WO2015185458A1/en active Application Filing
- 2015-05-29 CN CN201580029395.0A patent/CN106460297B/en active Active
- 2015-05-29 PL PL15727353T patent/PL3152354T3/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0824478A (en) * | 1994-07-20 | 1996-01-30 | Sharp Corp | Drum type washing machine |
EP2022884A1 (en) * | 2007-07-30 | 2009-02-11 | Miele & Cie. KG | Dispensing unit for a washing machine and washing machine |
WO2013092422A1 (en) * | 2011-12-20 | 2013-06-27 | BSH Bosch und Siemens Hausgeräte GmbH | Component of a domestic appliance with a coating |
Also Published As
Publication number | Publication date |
---|---|
EP3152354A1 (en) | 2017-04-12 |
WO2015185458A1 (en) | 2015-12-10 |
CN106460297A (en) | 2017-02-22 |
DE102014210624A1 (en) | 2015-12-17 |
PL3152354T3 (en) | 2020-03-31 |
CN106460297B (en) | 2021-06-08 |
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