EP3412994B1 - Refrigeration and/or freezer device - Google Patents

Refrigeration and/or freezer device Download PDF

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Publication number
EP3412994B1
EP3412994B1 EP18176283.2A EP18176283A EP3412994B1 EP 3412994 B1 EP3412994 B1 EP 3412994B1 EP 18176283 A EP18176283 A EP 18176283A EP 3412994 B1 EP3412994 B1 EP 3412994B1
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EP
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Prior art keywords
air
ice
ice maker
fan
designed
Prior art date
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EP18176283.2A
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German (de)
French (fr)
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EP3412994A2 (en
EP3412994A3 (en
Inventor
Daniel Thanner
Armin Bemetz
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Liebherr Hausgeraete Ochsenhausen GmbH
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Liebherr Hausgeraete Ochsenhausen GmbH
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Priority claimed from DE102017120276.5A external-priority patent/DE102017120276A1/en
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Publication of EP3412994A3 publication Critical patent/EP3412994A3/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C5/00—Working or handling ice
    • F25C5/20—Distributing ice
    • F25C5/22—Distributing ice particularly adapted for household refrigerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/061—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation through special compartments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/063—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation with air guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans

Definitions

  • the present invention relates to a refrigerator and/or freezer with a refrigerated interior and with an ice maker that is arranged in the refrigerated interior.
  • Known ice makers are usually arranged below a glass plate serving as a shelf or on the top of the device.
  • a fan arranged in the cooled interior is generally used to supply cooled air, but this is not specifically assigned to the ice maker. This may lead to the air supply to the ice maker and the removal of air from the ice maker not being optimal and to ice building up in an undesired area, for example below the glass plate.
  • Relevant state of the art is in JP 2001 2895441A to find.
  • the present invention is therefore based on the object of further developing an ice maker of the type mentioned at the outset such that the flow conditions in the region of the ice maker are optimal.
  • a refrigerator and/or freezer having the features of claim 1.
  • a holding element in which the ice maker is at least partially arranged, with a fan and air guiding means for guiding the air conveyed by the fan to the ice maker also being located in the holding element.
  • the holding element which can be designed as a holding frame, for example, it is achieved that there are flow conditions on the ice maker that are defined and cannot be changed by the user, which are optimal for the speed of ice formation and ice formation on others Place, such as on a shelf above the ice maker largely or completely prevent. In addition, protection against icing through door openings is achieved.
  • Cooled air preferably reaches the holding part in the form of a small volume flow from the evaporator of the refrigerant circuit of the device and is conveyed into the holding element by the fan. Preferably, only a small volume flow of air is passed through the holding element.
  • the holding part or its air ducts are preferably designed in such a way that air turbulence in the area of the holding part or on the ice cubes and in the cooled interior is prevented. As a result, the temperature regulation and temperature stratification in the cooled interior is not or hardly affected.
  • the holding part enables optimal cooling of the water and thus rapid ice production.
  • the holding part and the ice maker are located in the refrigerated interior space, such as in a freezer compartment.
  • a strong cooling of the water is thus possible and thus rapid formation of ice.
  • An influence on the temperature stratification in the interior of the device does not occur or only to a minor extent.
  • air guiding means are arranged upstream and/or downstream of the fan in the holding element.
  • These air routing means which are arranged on the suction side of the fan, i.e. upstream, and on the pressure side of the fan, i.e. downstream, allow defined air or flow conditions to be set on the ice maker or on its ice tray.
  • Air guidance means should be understood to mean any element that influences the air flow. These can be ducts, air-guiding elements, etc. It is conceivable, for example, that the air guiding means are at least partially designed as guide vanes.
  • the holding element has an air supply duct upstream of the fan, which has one or more air supply openings. If several supply air openings are provided, a particularly favorable inflow of the fan can be achieved. In addition, the airflow in the interior of the device can be influenced by the arrangement and number of air intake openings.
  • the ice maker is located below a glass plate, which serves as a shelf for refrigerated or frozen goods, and that the at least one air inlet opening is designed in such a way that the air from an area under the plate can be drawn through the air inlet opening by means of the fan is sucked in. In this way, the accumulation of humid air below the plate and thus also an ice build-up that would otherwise take place there can be prevented.
  • the holding element has an exhaust air duct downstream of the fan, which has one or more outlet openings. Due to the number, size and orientation of the outlet openings, a targeted and optimal inflow of the ice maker and in particular of its ice tray can be achieved.
  • the exhaust air duct is tapered in the direction of flow, for example designed conically.
  • the exhaust air duct is preferably designed in such a way that the same volume flow or essentially the same volume flow of the air reaches the ice maker through each outlet opening.
  • At least one of the outlet openings is arranged above the ice tray of the ice maker and is designed in such a way that the air hits the water/ice from above.
  • At least one of the outlet openings is designed in such a way that the air exits perpendicularly or essentially perpendicularly from the outlet opening.
  • the outlet openings are preferably designed and arranged in such a way that the water/ice that is in the ice tray flows in from several directions at the same time.
  • the holding element can be designed as a holding frame.
  • the holding frame can be designed as a closed frame, ie completely surrounding the ice maker, ie front, rear and right and left, or it can be designed as an open frame and surround the ice maker only on three sides or adjoin it.
  • an air guiding element to be arranged below the ice tray of the ice maker.
  • figure 1 shows with the reference H a lateral section of the holding frame and with S the ice tray of the ice maker.
  • the air baffle or air guide element L which has the task of achieving a targeted air flow below the ice tray.
  • the complete holding element is shown as a holding frame H, into which the ice maker E is inserted from below and is releasably fixed therein.
  • the ice maker includes the ice tray S and, if necessary, a mechanism for dispensing the ice that has formed, such as by rotating/twisting the ice tray.
  • the reference symbol V denotes a variable-speed fan or a fan that can only be operated at one speed. During operation, this sucks air through the air inlet opening 110 into the duct 100 arranged on the suction side.
  • the opening 110 is arranged in the end area of the duct 100 .
  • the pressure-side duct 200 extends on the pressure side of the fan V and has, among other things, balcony-like air outlets 210 which are located above the ice tray S and which are arranged in such a way that the air reaches the ice/water located therein from above.
  • the channels 100, 200 and their openings are preferably integral parts of the support frame.
  • figure 3 shows a perspective view from above of the arrangement comprising the holding frame H, the ice maker E and the water inlet W.
  • the reference numeral 120 designates air guide vanes which optimally move the air on the suction side to the fan V.
  • figure 4 shows a sectional view through the arrangement according to FIG figure 3 .
  • outlet openings 210 are provided in the holding frame, but also outlet openings 220, which are arranged such that the ice maker E and in particular its ice tray S is flown from the side of air.
  • the air conveyed by the fan is cold air.
  • the air duct below the shelf, not shown, on the underside of which the holding frame and the ice maker are located, is preferably designed in such a way that the underside is not exposed to moist cold air, but at most dry cold air, which facilitates the removal of ice from the underside of the shelf by sublimation.
  • This can be achieved, for example, by the arrangement of the openings, the ducts and the operation of the fan. This is preferably only put into operation when a thin layer of ice has formed on the water in the ice tray.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Description

Die vorliegende Erfindung betrifft einen Kühl- und/oder Gefriergerät mit einem gekühlten Innenraum und mit einem Eisbereiter, der in dem gekühlten Innenraum angeordnet ist.The present invention relates to a refrigerator and/or freezer with a refrigerated interior and with an ice maker that is arranged in the refrigerated interior.

Aus dem Stand der Technik ist es bekannt, in einem gekühlten Innenraum eines Kühl- oder Gefriergerätes einen Eisbereiter anzuordnen. Das durch diesen bereit gestellte Eis wird für den Nutzer beispielsweise durch einen Dispenser in der Gerätetür ausgegeben.It is known from the prior art to arrange an ice maker in a cooled interior of a refrigerator or freezer. The ice provided by this is dispensed to the user, for example, through a dispenser in the appliance door.

Bekannte Eisbereiter werden üblicherweise unterhalb einer als Ablageplatte dienenden Glasplatte oder an der Gerätedecke angeordnet. Zur Zufuhr gekühlter Luft dient im Allgemeinen ein im gekühlten Innenraum angeordneter Ventilator, der jedoch nicht eigens dem Eisbereiter zugeordnet ist. Dies führt ggf. dazu, dass die Luftzufuhr zum Eisbereiter und die Abfuhr von Luft vom Eisbereiter nicht optimal ist und dass es zu einem Eisaufbau in einem nicht gewünschten Bereich, beispielswiese unterhalb der Glasplatte kommt. Relevanter Stand der Technik ist in JP 2001 2895441 A zu finden.Known ice makers are usually arranged below a glass plate serving as a shelf or on the top of the device. A fan arranged in the cooled interior is generally used to supply cooled air, but this is not specifically assigned to the ice maker. This may lead to the air supply to the ice maker and the removal of air from the ice maker not being optimal and to ice building up in an undesired area, for example below the glass plate. Relevant state of the art is in JP 2001 2895441A to find.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, einen Eisbereiter der eingangs genannten Art dahingehend weiter zu bilden, dass die Strömungsverhältnisse im Bereich des Eisbereiters optimal sind.The present invention is therefore based on the object of further developing an ice maker of the type mentioned at the outset such that the flow conditions in the region of the ice maker are optimal.

Diese Aufgabe wird durch ein Kühl- und/oder Gefriergerät mit den Merkmalen des Anspruchs 1 gelöst. Danach ist ein Halteelement vorgesehen, in dem der Eisbereiter zumindest teilweise angeordnet ist, wobei sich in dem Halteelement zusätzlich ein Ventilator sowie Luftführungsmittel zur Führung der von dem Ventilator geförderten Luft zu dem Eisbereiter befinden.This object is achieved by a refrigerator and/or freezer having the features of claim 1. According to this, a holding element is provided, in which the ice maker is at least partially arranged, with a fan and air guiding means for guiding the air conveyed by the fan to the ice maker also being located in the holding element.

Durch die Anordnung des Eisbereiters sowie des Ventilators in dem Halteelement, das beispielsweise als Halterahmen ausgeführt sein kann, wird erreicht, dass an dem Eisbereiter definierte und durch den Nutzer nicht veränderbare Strömungsverhältnisse vorliegen, die für die Geschwindigkeit des Eisaufbaus optimal sind und einen Eisaufbau an anderer Stelle, wie beispielsweise an einem Ablageboden oberhalb des Eisbereiters weitgehend oder vollständig verhindern. Darüber hinaus wir ein Schutz vor Vereisung durch Türöffnungen erreicht.By arranging the ice maker and the fan in the holding element, which can be designed as a holding frame, for example, it is achieved that there are flow conditions on the ice maker that are defined and cannot be changed by the user, which are optimal for the speed of ice formation and ice formation on others Place, such as on a shelf above the ice maker largely or completely prevent. In addition, protection against icing through door openings is achieved.

Vorzugsweise gelangt gekühlte Luft in Form eines geringen Volumenstroms vom Verdampfer des Kältemittelkreislaufs des Gerätes zu dem Halteteil und wird durch den Ventilator in das Halteelement gefördert. Vorzugsweise wird nur ein geringer Volumenstrom an Luft durch das Halteelement geleitet.Cooled air preferably reaches the holding part in the form of a small volume flow from the evaporator of the refrigerant circuit of the device and is conveyed into the holding element by the fan. Preferably, only a small volume flow of air is passed through the holding element.

Vorzugsweise sind das Halteteil bzw. dessen Luftführungen so ausgestaltet, dass Luftverwirbelungen im Bereich des Halteteils bzw. an den Eiswürfeln und im gekühlten Innenraum verhindert werden. Dadurch wird die Temperaturregelung und Temperatur-Schichtung in dem gekühlten Innenraum nicht oder kaum beeinträchtigt.The holding part or its air ducts are preferably designed in such a way that air turbulence in the area of the holding part or on the ice cubes and in the cooled interior is prevented. As a result, the temperature regulation and temperature stratification in the cooled interior is not or hardly affected.

Das Halteteil ermöglicht die optimale Kühlung des Wassers und somit eine schnelle Eisproduktion.The holding part enables optimal cooling of the water and thus rapid ice production.

Das Halteteil und der Eisbereiter befinden sich in dem gekühlten Innenraum, wie z.B. in einem Gefrierteil.The holding part and the ice maker are located in the refrigerated interior space, such as in a freezer compartment.

Erfindungsgemäß ist somit eine starke Abkühlung des Wassers möglich und somit eine schnelle Eisbildung. Eine Beeinflussung der Temperaturschichtung im Geräteinnenraum tritt nicht oder nur in untergeordnetem Umfang auf.According to the invention, a strong cooling of the water is thus possible and thus rapid formation of ice. An influence on the temperature stratification in the interior of the device does not occur or only to a minor extent.

Erfindungsgemäß sind in dem Halteelement Luftführungsmittel stromaufwärts und/oder stromabwärts des Ventilators angeordnet.According to the invention, air guiding means are arranged upstream and/or downstream of the fan in the holding element.

Durch diese Luftführungsmittel, die auf der Saugseite des Ventilators, d.h. stromaufwärts, und auf der Druckseite des Ventilators, d.h. stromabwärts angeordnet sind, lassen sich definierte Luft- bzw. Strömungsverhältnisse am Eisbereiter bzw. an dessen Eisschale einstellen.These air routing means, which are arranged on the suction side of the fan, i.e. upstream, and on the pressure side of the fan, i.e. downstream, allow defined air or flow conditions to be set on the ice maker or on its ice tray.

Unter "Luftführungsmitteln" sind beliebige Elemente zu verstehen, die Einfluss auf die Luftströmung haben. Es kann sich dabei um Kanäle, Luftleitelemente etc. handeln. Denkbar ist es beispielsweise, dass die Luftführungsmittel zumindest teilweise als Leitschaufeln ausgebildet sind."Air guidance means" should be understood to mean any element that influences the air flow. These can be ducts, air-guiding elements, etc. It is conceivable, for example, that the air guiding means are at least partially designed as guide vanes.

Das Halteelement weist einen Zuluftkanal stromaufwärts des Ventilators auf, der eine oder mehrere Zuluftöffnungen aufweist. Werden mehrere Zuluftöffnungen vorgesehen, lässt sich eine besonders günstige Anströmung des Ventilators erreichen. Zudem lässt sich durch die Anordnung und Anzahl der Zuluftöffnungen der Luftstrom im Geräteinnenraum beeinflussen.The holding element has an air supply duct upstream of the fan, which has one or more air supply openings. If several supply air openings are provided, a particularly favorable inflow of the fan can be achieved. In addition, the airflow in the interior of the device can be influenced by the arrangement and number of air intake openings.

Erfindungsgemäß ist vorgesehen, dass sich der Eisbereiter unterhalb einer Glasplatte befindet, die als Ablageboden für Kühl- bzw. Gefriergut dient, und dass die wenigstens eine Zuluftöffnung derart ausgebildet ist, dass die Luft aus einem Bereich unter der Platte durch die Zuluftöffnung hindurch mittels des Ventilators angesogen wird. Auf diese Weise kann die Ansammlung feuchter Luft unterhalb der Platte und somit auch ein dort sonst erfolgender Eisaufbau verhindert werden.According to the invention, it is provided that the ice maker is located below a glass plate, which serves as a shelf for refrigerated or frozen goods, and that the at least one air inlet opening is designed in such a way that the air from an area under the plate can be drawn through the air inlet opening by means of the fan is sucked in. In this way, the accumulation of humid air below the plate and thus also an ice build-up that would otherwise take place there can be prevented.

Weiterhin weist das Halteelement einen Abluftkanal stromabwärts des Ventilators auf, der eine oder mehrere Auslassöffnungen aufweist. Durch die Anzahl, Größe und Ausrichtung der Auslassöffnungen kann eine gezielte und optimale Anströmung des Eisbereiters und insbesondere von dessen Eisschale erreicht werden.Furthermore, the holding element has an exhaust air duct downstream of the fan, which has one or more outlet openings. Due to the number, size and orientation of the outlet openings, a targeted and optimal inflow of the ice maker and in particular of its ice tray can be achieved.

Um sicher zu stellen, dass die in Strömungsrichtung weiter weg liegenden Auslassöffnungen auch noch mit einer hinreichenden Menge von Luft versorgt werden, kann vorgesehen sein, dass der Abluftkanal in Strömungsrichtung zulaufend, beispielsweise konisch ausgeführt ist. Vorzugsweise ist der Abluftkanal derart ausgebildet, dass durch jede Auslassöffnung derselbe Volumenstrom oder im Wesentlichen derselbe Volumenstrom der Luft zu dem Eisbereiter gelangt.In order to ensure that the outlet openings further away in the direction of flow are also supplied with a sufficient quantity of air, it can be provided that the exhaust air duct is tapered in the direction of flow, for example designed conically. The exhaust air duct is preferably designed in such a way that the same volume flow or essentially the same volume flow of the air reaches the ice maker through each outlet opening.

Um eine besonders effiziente Kühlung des Wasser bzw. des Eises zu erreichen, kann vorgesehen sein, dass wenigstens eine der Auslassöffnungen oberhalb der Eisschale des Eisbereiters angeordnet und derart ausgebildet ist, dass die Luft von oben auf das Wasser/Eis auftritt.In order to achieve particularly efficient cooling of the water or ice, it can be provided that at least one of the outlet openings is arranged above the ice tray of the ice maker and is designed in such a way that the air hits the water/ice from above.

Erfindungsgemäß ist wenigstens eine der Auslassöffnungen derart ausgebildet, dass der Luftaustritt senkrecht oder im Wesentlichen Senkrecht aus der Auslassöffnung erfolgt.According to the invention, at least one of the outlet openings is designed in such a way that the air exits perpendicularly or essentially perpendicularly from the outlet opening.

Vorzugsweise sind die Auslassöffnungen so ausgeführt und angeordnet, dass das Wasser/Eis, das sich in der Eisschale befindet, zeitgleich aus mehreren Richtungen angeströmt wird.The outlet openings are preferably designed and arranged in such a way that the water/ice that is in the ice tray flows in from several directions at the same time.

Wie oben ausgeführt, kann das Halteelement als Halterahmen ausgebildet sein. Der Halterahmen kann als geschlossener Rahmen ausgeführt sein d.h. des Eisbereiter vollumfänglich, d.h. vorne, hinten und rechts und links umgeben oder auch als offener Rahmen ausgeführt sein und den Eisbereiter z.B. nur auf drei Seiten umgeben bzw. an diesen angrenzen.As stated above, the holding element can be designed as a holding frame. The holding frame can be designed as a closed frame, ie completely surrounding the ice maker, ie front, rear and right and left, or it can be designed as an open frame and surround the ice maker only on three sides or adjoin it.

Um die Luftströmung weiter zu optimieren, kann vorgesehen sein, dass unterhalb der Eisschale des Eisbereiters ein Luftleitelement angeordnet ist.In order to further optimize the air flow, provision can be made for an air guiding element to be arranged below the ice tray of the ice maker.

An dieser Stelle wird darauf hingewiesen, dass die Begriffe "ein" und "eine" nicht zwingend auf genau eines der Elemente verweisen, wenngleich dies eine mögliche Ausführung darstellt, sondern auch eine Mehrzahl der Elemente umfassen können. Ebenso schließt die Verwendung des Plurals auch das Vorhandensein des fraglichen Elementes in der Einzahl ein und umgekehrt umfasst der Singular auch mehrere der fraglichen Elemente.At this point it is pointed out that the terms "a" and "an" do not necessarily refer to exactly one of the elements, although this represents a possible embodiment, but can also include a plurality of elements. Likewise, the use of the plural also includes the presence of the element in question in the singular and conversely the singular also includes several of the elements in question.

Weitere Einzelheiten und Vorteile der Erfindung werden anhand eines in der Zeichnung darstellten Ausführungsbeispiels näher erläutert.Further details and advantages of the invention are explained in more detail using an exemplary embodiment illustrated in the drawing.

Es zeigen:

Figur 1:
eine perspektivische Ansicht eines Teils des Halterahmens mit Eisschale,
Figur 2:
eine perspektivische Ansicht des Halterahmens, des Eisbereiters und des Wasserzulaufs,
Figur 3:
eine perspektivische Draufsicht des Halterahmens mit Eisbereiter und mit Wasserzulauf und
Figur 4:
eine Schnittansicht durch die Anordnung gemäß Figur 3.
Show it:
Figure 1:
a perspective view of a part of the holding frame with ice tray,
Figure 2:
a perspective view of the holding frame, the ice maker and the water inlet,
Figure 3:
a perspective top view of the holding frame with ice maker and water inlet and
Figure 4:
a sectional view through the arrangement according to FIG figure 3 .

Figur 1 zeigt mit dem Bezugszeichen H einen seitlichen Abschnitt des Halterahmens und mit S die Eisschale des Eisbereiters. In diese wird mittels eines Wasserzulaufs W (vgl. Fig. 2) Waser eingelassen und dann in der Eisschale zu Eis gekühlt. figure 1 shows with the reference H a lateral section of the holding frame and with S the ice tray of the ice maker. A water inlet W (cf. 2 ) water and then cooled to ice in the ice tray.

Unterhalb der Eisschale S befindet sich das Luftleitblech oder Luftleitelement L, das die Aufgabe hat, eine gezielte Luftströmung unterhalb der Eisschale zu erreichen.Below the ice tray S is the air baffle or air guide element L, which has the task of achieving a targeted air flow below the ice tray.

In Figur 2 ist das vollständige Halteelement als Halterahmen H gezeigt, in den der Eisbereiter E von unten eingesetzt und darin lösbar fixiert wird. Der Eisbereiter umfasst die Eisschale S und ggf. einen Mechanismus zur Ausgabe des gebildeten Eises, wie z.B. durch Drehen / Twisten der Eisschale.In figure 2 the complete holding element is shown as a holding frame H, into which the ice maker E is inserted from below and is releasably fixed therein. The ice maker includes the ice tray S and, if necessary, a mechanism for dispensing the ice that has formed, such as by rotating/twisting the ice tray.

Mit dem Bezugszeichen V ist ein drehzahlveränderlicher oder auch ein nur mit einer Drehzahl betreibbarer Ventilator gekennzeichnet. Im Betrieb saugt dieser Luft durch die Lufteinlassöffnung 110 in den saugseitig angeordneten Kanal 100. Die Öffnung 110 ist im Endbereich des Kanals 100 angeordnet.The reference symbol V denotes a variable-speed fan or a fan that can only be operated at one speed. During operation, this sucks air through the air inlet opening 110 into the duct 100 arranged on the suction side. The opening 110 is arranged in the end area of the duct 100 .

Auf der Druckseite des Ventilators V erstreckt sich der druckseitige Kanal 200, der u.a. balkonartige Luftauslässe 210 aufweist, die sich oberhalb der Eisschale S befinden und die so angeordnet sind, dass die Luft von oben auf das darin befindliche Eis/Wasser gelangt.The pressure-side duct 200 extends on the pressure side of the fan V and has, among other things, balcony-like air outlets 210 which are located above the ice tray S and which are arranged in such a way that the air reaches the ice/water located therein from above.

Die Kanäle 100, 200 und deren Öffnungen sind vorzugsweise integrale Bestandteile des Halterahmens.The channels 100, 200 and their openings are preferably integral parts of the support frame.

Figur 3 zeigt einer perspektivischen Ansicht von oben die Anordnung umfassend den Halterahmen H, den Eisbereiter E und den Wasserzulauf W. Das Bezugszeichen 120 kennzeichnet Luftleitschaufeln, die die Luft auf der Saugseite optimal zum Ventilator V hin bewegen. figure 3 shows a perspective view from above of the arrangement comprising the holding frame H, the ice maker E and the water inlet W. The reference numeral 120 designates air guide vanes which optimally move the air on the suction side to the fan V.

Figur 4 zeigt eine Schnittansicht durch die Anordnung gemäß Figur 3. figure 4 shows a sectional view through the arrangement according to FIG figure 3 .

Aus dieser Figur ist ersichtlich, dass in dem Halterahmen nicht nur die Auslassöffnungen 210 vorgesehen sind, sondern auch Auslassöffnungen 220, die so angeordnet sind, dass der Eisbereiter E und insbesondere dessen Eisschale S von der Seite von Luft angeströmt wird.From this figure it can be seen that not only the outlet openings 210 are provided in the holding frame, but also outlet openings 220, which are arranged such that the ice maker E and in particular its ice tray S is flown from the side of air.

Bei der von dem Ventilator geförderten Luft handelt es sich um kalte Luft.The air conveyed by the fan is cold air.

Die Luftführung unterhalb des nicht darstellten Ablagebodens, an dessen Unterseite sich der Halterahmen und der Eisbereiter befinden, wird vorzugsweise so ausgestaltet, dass die Unterseite möglichst nicht mit feuchter Kaltluft beaufschlagt wird, sondern allenfalls mit trockner kalter Luft, was die Entfernung von Eis von der Unterseite des Ablagebodens durch Sublimation fördert. Dies kann beispielsweise durch die Anordnungen der Öffnungen, der Kanäle und durch den Betrieb des Ventilators erreicht werden. Dieser wird vorzugsweise erst dann in Betrieb genommen, wenn sich auf dem Wasser in der Eisschale eine dünne Eisschicht gebildet hat.The air duct below the shelf, not shown, on the underside of which the holding frame and the ice maker are located, is preferably designed in such a way that the underside is not exposed to moist cold air, but at most dry cold air, which facilitates the removal of ice from the underside of the shelf by sublimation. This can be achieved, for example, by the arrangement of the openings, the ducts and the operation of the fan. This is preferably only put into operation when a thin layer of ice has formed on the water in the ice tray.

Claims (5)

  1. Refrigerator and/or freezer with a cooled interior and an ice maker (E), which is arranged in the cooled interior, wherein
    a holding element (H) is provided, in which the ice maker (E) is arranged,
    a fan (V) as well as air guiding means for guiding the air conveyed by the fan to the ice maker (E) are additionally located in the holding element (H), and
    the holding element (H) has an exhaust air duct (200) downstream of the fan (V), which duct has one or more outlet openings (210),
    wherein air guiding means are arranged in the holding element (H) upstream and downstream of the fan (V), and
    one of the outlet openings (210) is designed so that the air outflow of air used for making ice takes place vertically or substantially vertically from the outlet opening,
    wherein the holding element (H) has a supply air duct upstream of the fan (V), which duct has one or more supply air openings,
    characterised in that
    the ice maker (E) is located underneath a glass plate and that the at least one supply air opening is designed so that the air is aspirated from an area under the plate through the supply air opening by means of the fan (V).
  2. Refrigerator and/or freezer according to claim 1, characterised in that the air guiding means are designed at least partially as guide vanes.
  3. Refrigerator and/or freezer according to claim 1, characterised in that the exhaust air duct is executed tapered in the flow direction, in particular conically.
  4. Refrigerator and/or freezer according to any one of the preceding claims, characterised in that at least one of the outlet openings (210) is arranged above the ice tray of the ice maker (E) and is designed so that the air emerges onto the water/ice from above.
  5. Refrigerator and/or freezer according to any one of the preceding claims, characterised in that the holding element (H) is designed as a holding frame, which surrounds the ice maker (E), and/or that an air-conducting element is arranged underneath the ice tray of the ice maker (E).
EP18176283.2A 2017-06-07 2018-06-06 Refrigeration and/or freezer device Active EP3412994B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017112493 2017-06-07
DE102017120276.5A DE102017120276A1 (en) 2017-06-07 2017-09-04 Fridge and / or freezer

Publications (3)

Publication Number Publication Date
EP3412994A2 EP3412994A2 (en) 2018-12-12
EP3412994A3 EP3412994A3 (en) 2019-02-20
EP3412994B1 true EP3412994B1 (en) 2022-02-23

Family

ID=62562984

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18176283.2A Active EP3412994B1 (en) 2017-06-07 2018-06-06 Refrigeration and/or freezer device

Country Status (2)

Country Link
EP (1) EP3412994B1 (en)
ES (1) ES2913273T3 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11173736A (en) * 1997-12-12 1999-07-02 Toshiba Corp Refrigerator
US6351955B1 (en) * 2000-07-31 2002-03-05 Whirlpool Corporation Method and apparatus for rapid ice production
JP2003130510A (en) * 2001-10-24 2003-05-08 Sanyo Electric Co Ltd Ice making device and freezer refrigerator having the device
US7222497B2 (en) * 2002-10-21 2007-05-29 Lg Electronics Inc. Ice maker having fan assembly and fan assembly control method

Also Published As

Publication number Publication date
EP3412994A2 (en) 2018-12-12
EP3412994A3 (en) 2019-02-20
ES2913273T3 (en) 2022-06-01

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