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EP3036364B1 - Household appliance with a rinse water tank - Google Patents

Household appliance with a rinse water tank Download PDF

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Publication number
EP3036364B1
EP3036364B1 EP14744875.7A EP14744875A EP3036364B1 EP 3036364 B1 EP3036364 B1 EP 3036364B1 EP 14744875 A EP14744875 A EP 14744875A EP 3036364 B1 EP3036364 B1 EP 3036364B1
Authority
EP
European Patent Office
Prior art keywords
household appliance
rinse water
water container
heat
wash liquor
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.)
Active
Application number
EP14744875.7A
Other languages
German (de)
French (fr)
Other versions
EP3036364A1 (en
Inventor
Marcus Boehm
Bert Peters
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Publication date
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Publication of EP3036364A1 publication Critical patent/EP3036364A1/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 
    • D06F39/04—Heating 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
    • 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4285—Water-heater arrangements
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4291—Recovery arrangements, e.g. for the recovery of energy or water
    • 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 
    • D06F39/30—Arrangements for energy recovery

Definitions

  • the present invention relates to a household appliance with a rinse water container for receiving rinse water and a tub for receiving a wash liquor.
  • Tubular heaters can be used to heat up washing solution in washing machines.
  • the heat is generated electrically by means of a heating coil and transferred via a heating tube in the wash liquor.
  • a special mounting volume in the tub construction is taken into account. The heat generated is lost again when pumping out the heated liquor.
  • flat and flow heaters can be used, but which can save only a small amount of energy compared to a tubular heater solution.
  • a solution for further saving of heating energy in a washing device is currently unknown.
  • the publication EP 2 334 861 B1 describes a device for heating process water for a water-conducting household appliance, in which the process water flows through a meander-shaped container to heat the supplied cold process water to an ambient temperature.
  • the container includes a heat exchanger for exchanging heat with the environment.
  • the publication EP 2 096 203 A1 shows a household washing machine with a heat pump.
  • the publication DE 10 2008 041 955 A1 shows a device for heating process water for a water-bearing household appliance.
  • the object is achieved by a household appliance having a rinse water container for receiving rinse water and a suds container for receiving a wash liquor, wherein the household appliance comprises a thermal generator for transferring a heat quantity from the rinse water to the wash liquor.
  • the technical advantage is achieved that the wash liquor can be heated at the expense of an existing in the household appliance amount of rinse water.
  • the result lowered temperature of the rinsing water does not adversely affect a rinsing, which is carried out after a washing process.
  • a household appliance is a device that is used for household management. This can be a large household appliance, such as a washing machine, a dishwasher or a tumble dryer.
  • the rinsing water container comprises heat transfer ribs for transferring heat from the environment to the rinsing water container.
  • the household appliance comprises a fan for transferring heat from the environment to the rinse water tank.
  • the household appliance comprises a heat exchanger for heating the wash liquor, which is coupled to the thermal generator.
  • the heat exchanger is arranged in a pumped circulation for pumping over the wash liquor.
  • the pumped circulation system comprises an additional heater for heating the wash liquor.
  • the pumped circulation system comprises an outlet valve for draining off the wash liquor.
  • the rinse water container is arranged on a rear wall of the household appliance.
  • the rinse water container is arranged above the tub.
  • the household appliance comprises a line with a controllable valve for admitting the rinsing water into the tub.
  • the household appliance comprises a wastewater container for temporary storage of wastewater.
  • the wastewater container comprises heat transfer ribs for transferring heat from the waste water to the environment.
  • the wastewater container is located in an air flow direction of the fan.
  • the rinse water tank and the waste water tank are integrated in a tank unit.
  • the rinse water tank and waste water tank are thermally insulated from each other.
  • the technical advantage is achieved that an unwanted heat transfer is prevented.
  • Fig. 1 1 shows a schematic view of a washing machine for laundry as domestic appliance 100.
  • the laundry is located in a drum 137 inside the domestic appliance 100.
  • the domestic appliance 100 comprises a rinse water tank 101 for receiving tap water as rinse water 103 and a washing tank 105 for receiving a washing liquor 107.
  • the household appliance 100 comprises a thermogenerator 109 for transferring a heat quantity from the rinsing water 103 to the washing liquor 107.
  • the thermogenerator 109 comprises, for example, a compressor or semiconductor components which utilize the Peltier effect.
  • the amount of heat for heating the washing liquor 107 is borrowed from the environment by means of a heat exchanger 131 and the thermal generator 109.
  • the thermal generator 109 serves as an active element for heating the wash liquor 107.
  • the wash liquor 107 is heated by a heat exchanger 115 in the pumping system of the household appliance 100.
  • the pumping system circulates the wash liquor 107 in a pumping circulation 117 by means of a pump 133 in the tub 105.
  • the pumping circulation 117 comprises a controllable outlet valve 119, through which the wash liquor 107 can be passed out of the tub 105.
  • the heat exchanger 131 extracts heat from the rinse water 103 of the rinse water tank 101.
  • the rinsing water container 101 is, for example, a container filled with 30 l of water.
  • the rinse water tank 101 is heated by convection with ambient air, so that the temperature of the rinse water tank 101 can not fall below a certain minimum temperature, for example, 5 ° C.
  • a fan 113 for transmitting heat from the environment to the rinse water tank 101 by means of an air flow is provided.
  • the use of a thermally conductive rinsing water container 101 with a convection in an ambient air flow through the fan 113 increases the heat transfer.
  • the rinse water tank 101 comprises heat transfer fins 111 for transferring heat from the ambient air to the rinse water tank 101.
  • the domestic appliance 100 enables a significantly higher energy saving over a solution with a tubular heater for heating the wash liquor 107.
  • the rinse water 103 which has been removed from the heat for the heating process of the wash liquor 107, is then introduced into the tub 105 and used to rinse the laundry previously washed with the wash.
  • the flushing water container 101 is connected via a line 121 with a controllable valve 123 to the tub 105.
  • the heat removed in this way from the rinsing water 103 can be released by means of the thermogenerator 109 and a further heat exchanger 115 via a circulating circuit 117 to the washing liquor 107.
  • a circulating circuit 117 to the washing liquor 107.
  • the wash liquor 107 is buffered as waste water in a waste water tank 125, so that the heat contained in the waste water 129 can be partially released back to the environment.
  • the waste water tank 125 thus serves to return the heat energy and is formed for hygienic and saving reasons next to the rinse water tank 101 as a second container which is thermally insulated from the rinse water tank 101, but also in good thermal contact with the environment.
  • the rinsing water container 101 and the waste water container 125 are expediently combined in a tank unit for water management.
  • the rinsing water tank 101 and the waste water tank 125 are disposed at the upper portion of the household appliance 100 or at the rear wall thereof.
  • the rinse water tank 101 and the waste water tank 125 are in good thermal contact with the ambient air.
  • the cached waste water 129 can be discharged.
  • Inlet and outlet of the wash liquor 107 or the waste water into the waste water tank 125 is controlled by means of an outlet valve 135.
  • the intermediate storage step can be switched off depending on the environmental conditions, so that a cooling effect on the environment arises, for example in summer.
  • Coordination of power generation, transfer and water management may include, for example, the following steps. First, a filling of the tub 105 with tap water takes place. Subsequently, a filling of the rinse water container 101 takes place as a reservoir with tap water. Thereafter, a heating of the water in the tub 105 via the thermal generator 109 by heat energy from the water of the Spülement mattersers 101th
  • the waste water tank 125 includes heat transfer fins 127.
  • the tub 105 is rinsed with inflowing tap water.
  • the wastewater from the waste water tank 125 is discharged via a valve 139 after cooling or at the latest before ending the wash cycle. Due to the intermediate storage in the waste water tank 125, the heat present in the waste water 129 is largely returned to the environment.
  • the household appliance achieves a significant reduction in the electrical energy consumed by the domestic appliance in the washing process. By eliminating a tubular heater simplification of the tub construction is possible. In addition, there is a saving in water consumption. There is a double use of located in the rinse tank 101 and already used for heat extraction tap water to avoid overconsumption.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Washing And Drying Of Tableware (AREA)

Description

Die vorliegende Erfindung betrifft ein Haushaltsgerät mit einem Spülwasserbehälter zum Aufnehmen von Spülwasser und einem Laugenbehälter zum Aufnehmen einer Waschlauge.The present invention relates to a household appliance with a rinse water container for receiving rinse water and a tub for receiving a wash liquor.

Für das Aufheizen von Waschlauge in Waschgeräten können Rohrheizkörper benutzt werden. In Rohrheizkörpern wird die Wärme mittels einer Heizwendel elektrisch erzeugt und über ein Heizrohr in die Waschlauge übertragen. Dabei wird ein spezielles Montagevolumen in der Laugenbehälterkonstruktion berücksichtigt. Die erzeugte Wärme geht beim Abpumpen der aufgeheizten Lauge wieder verloren.Tubular heaters can be used to heat up washing solution in washing machines. In tubular heaters, the heat is generated electrically by means of a heating coil and transferred via a heating tube in the wash liquor. A special mounting volume in the tub construction is taken into account. The heat generated is lost again when pumping out the heated liquor.

Alternativ können Flach- und Durchflussheizkörper verwendet werden, mit denen sich aber nur eine geringe Menge an Energie gegenüber einer Rohrheizkörperlösung einsparen lässt. Eine Lösung zur weitergehenden Einsparung von Heizenergie in einem Waschgerät ist derzeit nicht bekannt.Alternatively, flat and flow heaters can be used, but which can save only a small amount of energy compared to a tubular heater solution. A solution for further saving of heating energy in a washing device is currently unknown.

Die Druckschrift EP 2 334 861 B1 beschreibt eine Vorrichtung zum Erwärmen von Betriebswasser für ein wasserführendes Haushaltsgerät, bei dem das Betriebswasser durch einen mäanderförmigen Behälter fließt, um das zugeführte kalte Betriebswasser auf eine Umgebungstemperatur zu erwärmen. Zusätzlich umfasst der Behälter einen Wärmtauscher zum Austauschen von Wärme mit der Umgebung.The publication EP 2 334 861 B1 describes a device for heating process water for a water-conducting household appliance, in which the process water flows through a meander-shaped container to heat the supplied cold process water to an ambient temperature. In addition, the container includes a heat exchanger for exchanging heat with the environment.

Die Offenlegungsschrift EP 2 096 203 A1 zeigt eine Haushalt-Waschmaschine mit einer Wärmepumpe.The publication EP 2 096 203 A1 shows a household washing machine with a heat pump.

Die Offenlegungsschrift DE 10 2008 041 955 A1 zeigt eine Vorrichtung zur Erwärmung von Betriebswasser für ein wasserführendes Haushaltgerät.The publication DE 10 2008 041 955 A1 shows a device for heating process water for a water-bearing household appliance.

Es ist die der Erfindung zugrundeliegende Aufgabe, ein Haushaltsgerät anzugeben, mit dem die Energieeffizienz gesteigert werden kann.It is the object underlying the invention to provide a household appliance, with which the energy efficiency can be increased.

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 Spülwasserbehälter zum Aufnehmen von Spülwasser und einem Laugenbehälter zum Aufnehmen einer Waschlauge gelöst, bei dem das Haushaltsgerät einen Thermogenerator zum Übertragen einer Wärmemenge vom Spülwasser auf die Waschlauge umfasst. Dadurch wird beispielsweise der technische Vorteil erreicht, dass die Waschlauge auf Kosten einer in dem Haushaltgerät vorhandenen Menge an Spülwasser erwärmt werden kann. Die hierdurch
abgesenkte Temperatur des Spülwassers wirkt sich nicht nachteilig auf einen Spülvorgang auf, der im Anschluss an einen Waschvorgang durchgeführt wird.According to one aspect of the invention, the object is achieved by a household appliance having a rinse water container for receiving rinse water and a suds container for receiving a wash liquor, wherein the household appliance comprises a thermal generator for transferring a heat quantity from the rinse water to the wash liquor. As a result, for example, the technical advantage is achieved that the wash liquor can be heated at the expense of an existing in the household appliance amount of rinse water. The result
lowered temperature of the rinsing water does not adversely affect a rinsing, which is carried out after a washing process.

Unter einem Haushaltsgerät wird ein Gerät verstanden, das zur Haushaltsführung eingesetzt wird. Das kann ein Haushaltsgroßgerät sein, wie beispielsweise eine Waschmaschine, ein Geschirrspüler oder ein Wäschetrockner.A household appliance is a device that is used for household management. This can be a large household appliance, such as a washing machine, a dishwasher or a tumble dryer.

In einer vorteilhaften Ausführungsform des Haushaltsgerätes umfasst der Spülwasserbehälter Wärmeübertragungsrippen zum Übertragen von Wärme aus der Umgebung auf den Spülwasserbehälter. Dadurch wird beispielsweise der technische Vorteil erreicht, dass zusätzlich Wärme aus der Umgebung auf das Spülwasser und über den Thermogenerator auf die Waschlauge übertragen werden kann.In an advantageous embodiment of the household appliance, the rinsing water container comprises heat transfer ribs for transferring heat from the environment to the rinsing water container. As a result, the technical advantage is achieved, for example, that in addition heat from the environment can be transferred to the rinse water and the thermogenerator to the wash liquor.

In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes umfasst das Haushaltsgerät einen Lüfter zum Übertragen von Wärme aus der Umgebung auf den Spülwasserbehälter. Dadurch wird beispielsweise ebenfalls der technische Vorteil erreicht, dass zusätzlich Wärme aus der Umgebung auf das Spülwasser und über den Thermogenerator auf die Waschlauge übertragen werden kann.In a further advantageous embodiment of the household appliance, the household appliance comprises a fan for transferring heat from the environment to the rinse water tank. As a result, the technical advantage is achieved, for example, that in addition heat from the environment can be transferred to the rinse water and the thermogenerator to the wash liquor.

In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes umfasst das Haushaltsgerät einen Wärmetauscher zum Aufheizen der Waschlauge, der mit dem Thermogenerator gekoppelt ist. Dadurch wird beispielsweise der technische Vorteil erreicht, dass eine schnelle und effiziente Erwärmung der Waschlauge erfolgt.In a further advantageous embodiment of the household appliance, the household appliance comprises a heat exchanger for heating the wash liquor, which is coupled to the thermal generator. As a result, for example, the technical advantage is achieved that a quick and efficient heating of the wash liquor takes place.

In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes ist der Wärmetauscher in einem Umpumpkreislauf zum Umpumpen der Waschlauge angeordnet. Dadurch wird beispielsweise der technische Vorteil erreicht, dass die Waschlauge in mehreren Durchläufen erhitzt werden kann.In a further advantageous embodiment of the household appliance, the heat exchanger is arranged in a pumped circulation for pumping over the wash liquor. As a result, for example, the technical advantage is achieved that the wash liquor can be heated in several passes.

In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes umfasst der Umpumpkreislauf eine Zusatzheizung zum Aufheizen der Waschlauge. Dadurch wird beispielsweise der technische Vorteil erreicht, dass auch bei erschöpfter Wärmemenge aus dem Spülwasser eine ausreichende Erwärmung der Waschlauge erreicht wird.In a further advantageous embodiment of the household appliance, the pumped circulation system comprises an additional heater for heating the wash liquor. As a result, for example, the technical advantage is achieved that even when the amount of heat is exhausted from the rinse water sufficient heating of the wash liquor is achieved.

In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes umfasst der Umpumpkreislauf ein Auslassventil zum Ablassen der Waschlauge. Dadurch wird beispielsweise der technische Vorteil erreicht, dass eine einfache Konfiguration zum Entfernen der Waschlauge aus dem Laugenbehälter realisiert wird.In a further advantageous embodiment of the household appliance, the pumped circulation system comprises an outlet valve for draining off the wash liquor. As a result, for example, the technical advantage is achieved that a simple configuration for removing the wash liquor from the tub is realized.

In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes ist der Spülwasserbehälter an einer Rückwand des Haushaltsgerätes angeordnet. Dadurch wird beispielsweise der technische Vorteil erreicht, dass eine effiziente Wärmeübertragung an der Rückseite des Haushaltsgerätes durchgeführt werden kann.In a further advantageous embodiment of the household appliance, the rinse water container is arranged on a rear wall of the household appliance. As a result, for example, the technical advantage is achieved that an efficient heat transfer to the back of the household appliance can be performed.

In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes ist der Spülwasserbehälter oberhalb des Laugenbehälters angeordnet. Dadurch wird beispielsweise der technische Vorteil erreicht, dass das Spülwasser ohne Pumpe in den Laugenbehälter eingelassen werden kann.In a further advantageous embodiment of the household appliance, the rinse water container is arranged above the tub. As a result, for example, the technical advantage is achieved that the rinse water can be admitted without a pump in the tub.

In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes umfasst das Haushaltsgerät eine Leitung mit einem steuerbaren Ventil zum Einlassen des Spülwassers in den Laugenbehälter. Dadurch wird beispielsweise der technische Vorteil erreicht, dass das Einlassen des Spülwassers in den Laugenbehälter elektronisch gesteuert werden kann.In a further advantageous embodiment of the household appliance, the household appliance comprises a line with a controllable valve for admitting the rinsing water into the tub. As a result, the technical advantage is achieved, for example, that the intake of the rinse water can be controlled electronically in the tub.

In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes umfasst das Haushaltsgerät einen Abwasserbehälter zum Zwischenspeichern von Abwasser. Dadurch wird beispielsweise der technische Vorteil erreicht, dass die Wärme des Abwassers an die Umgebung zurückgegeben werden kann.In a further advantageous embodiment of the household appliance, the household appliance comprises a wastewater container for temporary storage of wastewater. As a result, for example, the technical advantage is achieved that the heat of the waste water can be returned to the environment.

In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes umfasst der Abwasserbehälter Wärmeübertragungsrippen zum Übertragen von Wärme von dem Abwasser an die Umgebung. Dadurch wird beispielsweise der technische Vorteil erreicht, dass eine Effizienz beim Übertragen der Wärme an die Umgebung gesteigert wird.In a further advantageous embodiment of the household appliance, the wastewater container comprises heat transfer ribs for transferring heat from the waste water to the environment. As a result, for example, the technical advantage is achieved that an efficiency in transferring the heat to the environment is increased.

In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes liegt der Abwasserbehälter in einer Luftströmungsrichtung des Lüfters. Dadurch wird beispielsweise der technische Vorteil erreicht, dass mit dem Lüfter zusätzlich eine Wärmeübertragung von dem Abwasser des Abwasserbehälters gesteigert werden kann.In a further advantageous embodiment of the household appliance, the wastewater container is located in an air flow direction of the fan. As a result, the technical advantage is achieved, for example, that with the fan in addition a heat transfer from the wastewater of the wastewater tank can be increased.

In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes sind der Spülwasserbehälter und der Abwasserbehälter in einer Tankeinheit integriert. Dadurch wird beispielsweise der technische Vorteil erreicht, dass sich der Aufbau vereinfacht und der Montageaufwand des Haushaltsgerätes verringert.In a further advantageous embodiment of the household appliance, the rinse water tank and the waste water tank are integrated in a tank unit. As a result, for example, the technical advantage is achieved that simplifies the structure and reduces the assembly costs of the household appliance.

In einer weiteren vorteilhaften Ausführungsform des Haushaltsgerätes sind der Spülwasserbehälter und Abwasserbehälter thermisch voneinander isoliert. Dadurch wird beispielsweise der technische Vorteil erreicht, dass ein ungewollter Wärmeübertrag verhindert wird.In a further advantageous embodiment of the household appliance, the rinse water tank and waste water tank are thermally insulated from each other. As a result, for example, the technical advantage is achieved that an unwanted heat transfer is prevented.

Ausführungsbeispiele der Erfindung sind in der Zeichnung 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 zeigt:

Fig. 1
eine schematische Ansicht eines Haushaltgerätes mit einem Thermogenerator.
It shows:
Fig. 1
a schematic view of a household appliance with a thermogenerator.

Fig. 1 zeigt eine schematische Ansicht einer Waschmaschine für Wäsche als Haushaltgerät 100. Die Wäsche befindet sich in einer Trommel 137 im Inneren des Haushaltgeräts 100. Das Haushaltgerät 100 umfasst einen Spülwasserbehälter 101 zum Aufnehmen von Leitungswasser als Spülwasser 103 und einen Laugenbehälter 105 zum Aufnehmen einer Waschlauge 107. Fig. 1 1 shows a schematic view of a washing machine for laundry as domestic appliance 100. The laundry is located in a drum 137 inside the domestic appliance 100. The domestic appliance 100 comprises a rinse water tank 101 for receiving tap water as rinse water 103 and a washing tank 105 for receiving a washing liquor 107.

Daneben umfasst das Haushaltsgerät 100 einen Thermogenerator 109 zum Übertragen einer Wärmemenge vom Spülwasser 103 auf die Waschlauge 107. Der Thermogenerator 109 umfasst beispielsweise einen Kompressor oder Halbleiterbauteile, die den Peltier-Effekt ausnutzen. Die Wärmemenge zum Aufheizen der Waschlauge 107 wird mittels eines Wärmetauschers 131 und des Thermogenerator 109 aus der Umgebung geborgt. Der Thermogenerator 109 dient als aktives Element zur Aufheizung der Waschlauge 107. Ein Aufheizen der Waschlauge 107 erfolgt durch einen Wärmetauscher 115 im Umpumpsystem des Haushaltsgerätes 100.In addition, the household appliance 100 comprises a thermogenerator 109 for transferring a heat quantity from the rinsing water 103 to the washing liquor 107. The thermogenerator 109 comprises, for example, a compressor or semiconductor components which utilize the Peltier effect. The amount of heat for heating the washing liquor 107 is borrowed from the environment by means of a heat exchanger 131 and the thermal generator 109. The thermal generator 109 serves as an active element for heating the wash liquor 107. The wash liquor 107 is heated by a heat exchanger 115 in the pumping system of the household appliance 100.

Das Umpumpsystem wälzt die Waschlauge 107 in einem Umpumpkreislauf 117 mittels einer Pumpe 133 in dem Laugenbehälter 105 um. Zum Ablassen der Waschlauge 107 umfasst der Umpumpkreislauf 117 ein steuerbares Auslassventil 119, durch das die Waschlauge 107 aus dem Laugenbehälter 105 geleitet werden kann.The pumping system circulates the wash liquor 107 in a pumping circulation 117 by means of a pump 133 in the tub 105. For discharging the wash liquor 107, the pumping circulation 117 comprises a controllable outlet valve 119, through which the wash liquor 107 can be passed out of the tub 105.

Zum Aufheizen der Waschlauge 107 entzieht der Wärmetauscher 131 dem Spülwasser 103 des Spülwasserbehälters 101 Wärme. Der Spülwasserbehälter 101 ist beispielsweise Behälter, der mit 30I Wasser gefüllt ist. Parallel dazu wird der Spülwasserbehälter 101 durch Konvektion mit Umgebungsluft erwärmt, so dass die Temperatur des Spülwasserbehälters 101 eine bestimmte Mindesttemperatur von beispielsweise 5°C nicht unterschreiten kann. Zu diesem Zweck ist ein Lüfter 113 zum Übertragen von Wärme aus der Umgebung auf den Spülwasserbehälter 101 mittels eines Luftstroms vorgesehen.For heating the wash liquor 107, the heat exchanger 131 extracts heat from the rinse water 103 of the rinse water tank 101. The rinsing water container 101 is, for example, a container filled with 30 l of water. In parallel, the rinse water tank 101 is heated by convection with ambient air, so that the temperature of the rinse water tank 101 can not fall below a certain minimum temperature, for example, 5 ° C. For this purpose, a fan 113 for transmitting heat from the environment to the rinse water tank 101 by means of an air flow is provided.

Die Verwendung eines wärmeleitfähigen Spülwasserbehälters 101 mit einer Konvektion in einem Umgebungsluftstrom durch den Lüfter 113 erhöht den Wärmeübertrag. Zusätzlich umfasst der Spülwasserbehälter 101 Wärmeübertragungsrippen 111 zum Übertragen von Wärme aus der Umgebungsluft auf den Spülwasserbehälter 101. Durch das Haushaltsgerät 100 ist eine deutlich höhere Energieeinsparung gegenüber einer Lösung mit einem Rohrheizkörper zum Erwärmen der Waschlauge 107 möglich.The use of a thermally conductive rinsing water container 101 with a convection in an ambient air flow through the fan 113 increases the heat transfer. In addition, the rinse water tank 101 comprises heat transfer fins 111 for transferring heat from the ambient air to the rinse water tank 101. The domestic appliance 100 enables a significantly higher energy saving over a solution with a tubular heater for heating the wash liquor 107.

Das Spülwasser 103, dem die Wärme für den Aufheizprozess der Waschlauge 107 entnommen worden ist, wird anschließend in den Laugenbehälter 105 eingelassen und zum Spülen der zuvor mit der Waschlauge gewaschenen Wäsche weiterverwendet. Zu diesem Zweck ist der Spülwasserbehälters 101 über eine Leitung 121 mit einem steuerbaren Ventil 123 mit dem Laugenbehälter 105 verbunden.The rinse water 103, which has been removed from the heat for the heating process of the wash liquor 107, is then introduced into the tub 105 and used to rinse the laundry previously washed with the wash. For this purpose, the flushing water container 101 is connected via a line 121 with a controllable valve 123 to the tub 105.

Die auf diese Weise dem Spülwasser 103 entnommene Wärme kann mittels des Thermogenerators 109 und eines weiteren Wärmetauschers 115 über einen Umpumpkreislauf 117 an die Waschlauge 107 abgegeben werden. Zur Beschleunigung des Aufheizprozesses ist eine Installation einer Zusatzheizung im Umpumpkreislauf 117 möglich.The heat removed in this way from the rinsing water 103 can be released by means of the thermogenerator 109 and a further heat exchanger 115 via a circulating circuit 117 to the washing liquor 107. To accelerate the heating process, an installation of additional heating in the pumping circulation 117 is possible.

Nach einem Abpumpen der Waschlauge 107 nach Beendigung eines Waschvorgangs wird die Waschlauge 107 als Abwasser in einem Abwasserbehälter 125 zwischengespeichert, so dass die im Abwasser 129 enthaltene Wärme teilweise wieder an die Umgebung abgegeben werden kann. Der Abwasserbehälter 125 dient somit zur Rückgabe der Wärmenergie und ist aus hygienischen und Einsparungsgründen neben dem Spülwasserbehälter 101 als ein zweiter Behälter gebildet, der thermisch isoliert von dem Spülwasserbehälter 101 angeordnet ist, aber ebenfalls in gutem thermischen Kontakt mit der Umgebung steht.After pumping off the wash liquor 107 after completion of a washing process, the wash liquor 107 is buffered as waste water in a waste water tank 125, so that the heat contained in the waste water 129 can be partially released back to the environment. The waste water tank 125 thus serves to return the heat energy and is formed for hygienic and saving reasons next to the rinse water tank 101 as a second container which is thermally insulated from the rinse water tank 101, but also in good thermal contact with the environment.

Der Spülwasserbehälter 101 und der Abwasserbehälter 125 sind zweckmäßigerweise in einer Tankeinheit zum Wassermanagement zusammengefasst. Der Spülwasserbehälter 101 und der Abwasserbehälter 125 sind im oberen Bereich des Haushaltsgerätes 100 oder an dessen Rückwand angeordnet. Der Spülwasserbehälter 101 und der Abwasserbehälter 125 stehen mit der Umgebungsluft in gutem thermischem Kontakt.The rinsing water container 101 and the waste water container 125 are expediently combined in a tank unit for water management. The rinsing water tank 101 and the waste water tank 125 are disposed at the upper portion of the household appliance 100 or at the rear wall thereof. The rinse water tank 101 and the waste water tank 125 are in good thermal contact with the ambient air.

Nach einem Ausgleich der Temperatur des Abwasserbehälters 125 mit der Umgebung kann das zwischengespeicherte Abwasser 129 abgelassen werden. Ein Ein- und Auslassen des der Waschlauge 107 oder des Abwassers in den Abwasserbehälter 125 wird mittels eines Auslassventils 135 gesteuert. Der Zwischenspeicherschritt kann je nach Umweltbedingungen abgeschaltet werden, so dass ein Kühleffekt auf die Umgebung entsteht, beispielsweise im Sommer.After balancing the temperature of the waste water tank 125 with the environment, the cached waste water 129 can be discharged. Inlet and outlet of the wash liquor 107 or the waste water into the waste water tank 125 is controlled by means of an outlet valve 135. The intermediate storage step can be switched off depending on the environmental conditions, so that a cooling effect on the environment arises, for example in summer.

Die Koordination von Energiegewinnung, Transfer und Wassermanagement kann beispielsweise die folgenden Schritte umfassen. Zunächst findet eine Füllung des Laugenbehälters 105 mit Leitungswasser statt. Anschließend erfolgt eine Füllung des Spülwasserbehälters 101 als Vorratsbehälter mit Leitungswasser. Danach geschieht eine Erwärmung des Wassers im Laugenbehälter 105 über den Thermogenerator 109 durch Wärmeenergie aus dem Wasser des Spülwasserbehälters 101.Coordination of power generation, transfer and water management may include, for example, the following steps. First, a filling of the tub 105 with tap water takes place. Subsequently, a filling of the rinse water container 101 takes place as a reservoir with tap water. Thereafter, a heating of the water in the tub 105 via the thermal generator 109 by heat energy from the water of the Spülwasserbehälters 101th

Danach erfolgt ein Ausgleich der Wärmeenergie des Wassers im Spülwasserbehälter 101 durch die Umgebungsluft über den Lüfter 113. Schließlich wird ein Waschprozess mittels der im Laugenbehälter 105 vorhandenen Waschlauge 107 durchgeführt. Anschließend wird die Waschlauge 107 in den Abwasserbehälter 125 zur teilweisen Rückgabe der Wärmeenergie an die Umgebung abgepumpt und in dem Abwasserbehälter 125 temporär zwischengespeichert, bevor die Waschlauge als Abwasser abgelassen wird. Zum besseren Übertragen von Wärme von dem Abwasser 129 an die Umgebung umfasst der Abwasserbehälter 125 Wärmeübertragungsrippen 127.Thereafter, a balancing of the heat energy of the water in the rinsing water container 101 by the ambient air via the fan 113. Finally, a washing process is carried out by means of the wash liquor 107 present in the tub 105. Subsequently, the wash liquor 107 is pumped into the waste water tank 125 to partially return the heat energy to the environment and stored temporarily in the waste water tank 125 before the wash liquor is discharged as waste water. For better transfer of heat from the waste water 129 to the environment, the waste water tank 125 includes heat transfer fins 127.

Danach wird mit kaltem Wasser aus dem Spülwasserbehälter 101 gespült. Sollte der Spülwasserbehälter 101 entleert sein, wird der Laugenbehälter 105 mit zufließendem Leitungswasser gespült. Das Abwasser aus dem Abwasserbehälter 125 wird nach Abkühlung oder spätestens vor Beenden des Waschganges über ein Ventil 139 abgelassen. Durch die Zwischenspeicherung in dem Abwasserbehälter 125 wird die in dem Abwasser 129 vorhandene Wärme größtenteils an die Umgebung zurückgegeben.Thereafter, rinsed with cold water from the rinse tank 101. If the rinse water tank 101 is emptied, the tub 105 is rinsed with inflowing tap water. The wastewater from the waste water tank 125 is discharged via a valve 139 after cooling or at the latest before ending the wash cycle. Due to the intermediate storage in the waste water tank 125, the heat present in the waste water 129 is largely returned to the environment.

Durch das Haushaltgerät wird eine deutliche Verringerung der durch das Haushaltsgerät im Waschprozess aufgenommenen Elektroenergie erzielt. Durch den Wegfall eines Rohrheizkörpers ist eine Vereinfachung der Laugenbehälterkonstruktion möglich. Zudem ergibt sich eine Einsparung beim Wasserverbrauch. Es erfolgt eine doppelte Nutzung des im Spülwasserbehälter 101 befindlichen und bereits zur Wärmeentnahme verwendeten Leitungswassers zur Vermeidung eines Mehrverbrauches.The household appliance achieves a significant reduction in the electrical energy consumed by the domestic appliance in the washing process. By eliminating a tubular heater simplification of the tub construction is possible. In addition, there is a saving in water consumption. There is a double use of located in the rinse tank 101 and already used for heat extraction tap water to avoid overconsumption.

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.

BEZUGSZEICHENLISTELIST OF REFERENCE NUMBERS

100100
Haushaltsgeräthousehold appliance
101101
SpülwasserbehälterRinseTank
103103
Spülwasserdishwater
105105
Laugenbehältertub
107107
Waschlaugesuds
109109
Thermogeneratorthermogenerator
111111
WärmeübertragungsrippenHeat transfer fins
113113
LüfterFan
115115
Wärmetauscherheat exchangers
117117
Umpumpkreislaufpumping circuit
119119
Auslassventiloutlet valve
121121
Leitungmanagement
123123
VentilValve
125125
Abwasserbehälterwaste water tank
127127
WärmeübertragungsrippenHeat transfer fins
129129
Abwassersewage
131131
Wärmetauscherheat exchangers
133133
Pumpepump
135135
Auslassventiloutlet valve
137137
Trommeldrum
139139
VentilValve

Claims (15)

  1. Household appliance (100) with a rinse water tank (101) for receiving rinse water (103) and an outer tub (105) for receiving wash liquor (107), characterised in that the household appliance (100) comprises a thermogenerator (109) for transmitting a quantity of heat from the rinse water (103) to the wash liquor (107).
  2. Household appliance (100) according to claim 1, characterised in that the rinse water container (101) comprises thermal transmission ribs (111) for transmitting heat from the surroundings onto the rinse water container (101).
  3. Household appliance (100) according to one of the preceding claims, characterised in that the household appliance (100) comprises a fan (113) for transmitting heat from the surroundings onto the rinse water container (101).
  4. Household appliance (100) according to one of the preceding claims, characterised in that the household appliance (100) comprises a heat exchanger (115) for heating the wash liquor, which is coupled to the thermogenerator (109).
  5. Household appliance (100) according to claim 4, characterised in that the heat exchanger (115) is arranged in a recirculation circuit (117) for recirculating the wash liquor (107).
  6. Household appliance (100) according to claim 4 or 5, characterised in that the recirculation circuit (117) comprises an additional heater for heating up the wash liquor (107).
  7. Household appliance (100) according to one of claims 4 to 6, characterised in that the recirculation pump (117) comprises an outlet valve (119) for draining the wash liquor (107).
  8. Household appliance (100) according to one of the preceding claims, characterised in that the rinse water container (101) is arranged on a rear wall of the household appliance (100).
  9. Household appliance (100) according to one of the preceding claims, characterised in that the rinse water container (101) is arranged above the outer tub (105).
  10. Household appliance (100) according to one of the preceding claims, characterised in that the household appliance (100) comprises a line (121) with a controllable valve (123) for allowing the rinse water (103) to enter the outer tub (105).
  11. Household appliance (100) according to one of the preceding claims, characterised in that the household appliance (100) comprises a waste water container (125) for storing waste water (129).
  12. Household appliance (100) according to claim 11, characterised in that the waste water container (125) comprises heat transmission ribs (127) for transmitting heat from the waste water (129) into the surroundings.
  13. Household appliance (100) according to claim 11 or 12, characterised in that the waste water container (125) is disposed in an air flow direction of the fan (113).
  14. Household appliance (100) according to one of claims 11 to 13, characterised in that the rinse water container (101) and the waste water container (125) are integrated in a tank unit.
  15. Household appliance (100) according to one of claims 11 to 14, characterised in that the rinse water container (101) and the waste water container (125) are thermally insulated from one another.
EP14744875.7A 2013-08-23 2014-07-31 Household appliance with a rinse water tank Active EP3036364B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013216741.5A DE102013216741B3 (en) 2013-08-23 2013-08-23 Household appliance with rinse water tank
PCT/EP2014/066532 WO2015024756A1 (en) 2013-08-23 2014-07-31 Household appliance with a rinse water tank

Publications (2)

Publication Number Publication Date
EP3036364A1 EP3036364A1 (en) 2016-06-29
EP3036364B1 true EP3036364B1 (en) 2017-05-17

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EP14744875.7A Active EP3036364B1 (en) 2013-08-23 2014-07-31 Household appliance with a rinse water tank

Country Status (4)

Country Link
EP (1) EP3036364B1 (en)
CN (1) CN105473778B (en)
DE (1) DE102013216741B3 (en)
WO (1) WO2015024756A1 (en)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
US10722100B2 (en) * 2015-02-27 2020-07-28 BSH Hausgeräte GmbH Household dishwasher for washing dishes in one or more partial wash cycles, and associated method
EP4567184A1 (en) * 2023-12-07 2025-06-11 Jürgen Krämer Laundry system with optimized utilization of applied energy

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WO2017060928A1 (en) * 2015-10-09 2017-04-13 F.M.B. Fabbrica Macchine Bologna Spa Washing and drying machine
TR201705358A2 (en) * 2017-04-11 2018-10-22 Arcelik As ONE DISHWASHER
CN109695134A (en) * 2017-10-24 2019-04-30 青岛海尔滚筒洗衣机有限公司 A kind of heat-pump-type washing machine and control method
WO2019233809A1 (en) * 2018-06-04 2019-12-12 Arcelik Anonim Sirketi Heat pump dishwasher with enhanced evaporator capacity
EP3801179B1 (en) * 2018-06-08 2022-05-04 Arçelik Anonim Sirketi Heat pump dishwasher with enhanced evaporator efficiency
EP3870016A1 (en) * 2018-10-22 2021-09-01 Arçelik Anonim Sirketi A heat pump dishwasher comprising a defrost receptacle
CN114126465A (en) * 2019-07-05 2022-03-01 伊莱克斯电器股份公司 Washing appliance
EP4144276B1 (en) * 2020-08-10 2024-10-30 Guangdong Midea White Home Appliance Technology Innovation Center Co., Ltd. Dishwashing device

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Publication number Priority date Publication date Assignee Title
DE102008041955A1 (en) * 2008-09-10 2010-03-11 BSH Bosch und Siemens Hausgeräte GmbH Apparatus for heating process water for a water-conducting domestic appliance for the care of items of laundry and household appliance with such a device
DK2096203T3 (en) * 2009-05-28 2012-02-20 V Zug Ag Household washing machine with heat pump
PL2193741T3 (en) * 2010-03-15 2018-09-28 V-Zug Ag Household appliance with heat reservoir and heat coupler tank

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10722100B2 (en) * 2015-02-27 2020-07-28 BSH Hausgeräte GmbH Household dishwasher for washing dishes in one or more partial wash cycles, and associated method
EP4567184A1 (en) * 2023-12-07 2025-06-11 Jürgen Krämer Laundry system with optimized utilization of applied energy

Also Published As

Publication number Publication date
CN105473778B (en) 2017-05-24
DE102013216741B3 (en) 2014-12-11
WO2015024756A1 (en) 2015-02-26
CN105473778A (en) 2016-04-06
EP3036364A1 (en) 2016-06-29

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