EP3030852B1 - Refrigerator - Google Patents

Refrigerator Download PDF

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Publication number
EP3030852B1
EP3030852B1 EP14744068.9A EP14744068A EP3030852B1 EP 3030852 B1 EP3030852 B1 EP 3030852B1 EP 14744068 A EP14744068 A EP 14744068A EP 3030852 B1 EP3030852 B1 EP 3030852B1
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EP
European Patent Office
Prior art keywords
base plate
refrigeration appliance
door
ventilation valve
membrane
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EP14744068.9A
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German (de)
French (fr)
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EP3030852A1 (en
Inventor
Roland KÜMMEL
Karl-Friedrich Laible
Andreas Lindel
Ulrich Schlander
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Priority to PL14744068T priority Critical patent/PL3030852T3/en
Publication of EP3030852A1 publication Critical patent/EP3030852A1/en
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    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/047—Pressure equalising devices

Definitions

  • the present invention relates to a refrigerator with a refrigerator door, which comprises an inserted ventilation valve for ventilating a refrigeration compartment when the refrigerator door is opened
  • the disclosure DE 10 2008 021 375 A1 shows a refrigerator with a pressure compensation valve.
  • the disclosure EP 2 090 854 A2 shows a refrigerator.
  • the US 3,027,735 A shows a refrigerator with an air passage, which is arranged on a lower portion of a door of the refrigerator, wherein a rubber sheet valve is arranged by means of a plate over an opening of the air passage on a bottom of the door.
  • the object is achieved by a refrigeration device with a refrigeration device door, which comprises an inserted ventilation valve for ventilating a refrigeration compartment when the refrigeration device door is opened, in which the ventilation valve has a Base plate with an air opening, an elastic membrane for covering the air opening and a cover element placed on the elastic membrane for fastening the elastic membrane to the base plate.
  • the ventilation valve can be installed inconspicuously in the refrigerator door with little installation space and can be produced with little technical effort.
  • a refrigeration device is understood in particular to mean a household refrigeration device, that is to say a refrigeration device that is used for household management in households or in the catering sector, and in particular serves to store food and / or beverages at certain temperatures, such as a refrigerator, a freezer, a fridge-freezer combination, a freezer or a wine fridge.
  • the ventilation valve comprises a film hinge for rotatably connecting the base plate and the cover element.
  • the membrane comprises at least one opening for aligning the membrane on the base plate.
  • the cover element comprises a protruding lip for pressing the membrane onto the base plate.
  • the base plate comprises a receptacle for a door seal of the refrigeration device door.
  • the refrigerator door comprises a deep-drawn pocket for inserting the ventilation valve.
  • the ventilation valve can be integrated into the refrigerator door and the membrane can be held in the closed position by gravity.
  • the pocket is arranged on an underside of the refrigerator door. This has the technical advantage, for example, that when the refrigerator door is opened, air is led into the refrigerator compartment from below.
  • the pocket forms an airway around a door seal. This has the technical advantage, for example, that the inflowing air can be introduced from the edge of the refrigerator door.
  • the pocket engages around the base plate in a form-fitting manner. This has the technical advantage, for example, that an undesired outflow of air between the ventilation valve and the refrigerator door is prevented.
  • the inner side of the elastic membrane projects beyond the base plate.
  • the base plate comprises two projecting pins for attaching the cover element. This achieves the technical advantage, for example, that the membrane is reliably held by the attached cover element.
  • the cover element comprises a latching means for latching into the projecting pin.
  • the base plate comprises laterally molded-on ribs for sealing the ventilation valve. This also achieves the technical advantage, for example, that a lateral gap can be sealed.
  • the air opening has a rectangular cross section. This has the technical advantage, for example, that a large amount of air can quickly pass through the ventilation valve.
  • the base plate and / or the cover element is a molded plastic part. This achieves the technical advantage, for example, that the ventilation valve can be manufactured quickly and efficiently.
  • Fig. 1 shows a refrigerator representative of a refrigerator 100 with an upper refrigerator door and a lower refrigerator door.
  • the refrigerator is used, for example, to cool food and comprises a refrigerant circuit with an evaporator, a compressor, a condenser and a throttle element.
  • the evaporator is a heat exchanger in which, after expansion, the liquid refrigerant is evaporated by absorbing heat from the medium to be cooled, ie the air inside the refrigerator.
  • the compressor is a mechanically operated component that sucks refrigerant vapor from the evaporator and discharges it to the condenser at a higher pressure.
  • the condenser is a heat exchanger in which, after compression, the evaporated refrigerant by giving off heat to an external cooling medium, i.e. the ambient air is liquefied.
  • the throttling device is a device for the constant reduction of pressure by narrowing the cross-section.
  • the refrigerant is a fluid used for heat transfer in the cryogenic system that absorbs heat at low temperatures and low pressures of the fluid and releases heat at higher temperatures and pressures of the fluid, usually including changes in the state of the fluid.
  • the refrigeration device 100 comprises an upper and a lower refrigeration device door 103, each of which closes a refrigeration compartment in the interior of the refrigeration device 100 and can be opened by a user.
  • Fig. 2 shows a view of a disassembled ventilation valve 101.
  • the ventilation valve 101 comprises a base plate 105 and an elastic membrane 109.
  • a rectangular air opening 107 is formed in the base plate 105.
  • the membrane 109 lies on the top of the base plate 105.
  • the membrane 109 is raised by the negative pressure, so that air can flow through the released air opening 107.
  • a negative pressure can be reduced in the interior of the refrigeration compartment, which would make it difficult to open the refrigerator door 103.
  • the membrane 109 is, for example, a rubber membrane with a thickness of 0.35 mm.
  • the base plate 105 comprises two cylindrical pins 125 which protrude upwards from the base plate 105.
  • the membrane 109 comprises two openings 113 at corresponding positions, which are placed on the pins 125 when the ventilation valve 101 is assembled.
  • a cover element 111 is fastened by means of a film hinge 131. Since a film hinge 131 is used, the base plate 105 can be produced together with the cover element 111 in a single injection molded part with an injection molding tool. The film hinge 131 is in an unbent state and the cover element 111 is open.
  • Latching means 127 are formed in the cover element 111, which snap into place on the pin 125 when the cover element 111 is closed. By folding over the cover element 111, which is connected directly to the base plate 105 by means of the film hinge 131, the membrane 109 is fixed after the latching means 127 has snapped into place.
  • a protruding lip 115 is formed on the rear side of the cover element 111.
  • a receptacle 117 with a U-shaped cross section for a circumferential door seal.
  • the door seal of the refrigerator door 103 is inserted into the receptacle 117. This allows the ventilation valve 101 to be fixed behind the door seal.
  • the door seal is formed, for example, by a circumferential rubber seal that includes a magnetic element.
  • Fig. 3 shows a view of the assembled ventilation valve 101.
  • the cover element 111 is engaged by means of the latching means 127 on the pin 125 of the base plate 105 and is in the closed state.
  • the membrane 109 is thereby clamped and fixed between the base plate 105 and a cover element 111.
  • the lip 115 of the cover element 111 rests on the membrane 109 and serves to smooth the membrane 109.
  • the lip 115 on the cover element 111 presses the membrane 109 downward in front of the air opening 107. This prevents warping and ensures an optimal seal. This ensures that the ventilation valve 101 seals well in the closed state.
  • the film hinge 113 is in the bent state.
  • Fig. 4 shows a view of a refrigerator door 103 with a ventilation valve 101 inserted.
  • the inside of the refrigerator door 103 is formed from a drawn circuit board.
  • a deep-drawn pocket 121 is formed on the underside of the refrigerator door 103 and defines a recess in the refrigerator door 103.
  • the assembly of the ventilation valve 101 is pushed into the provided pocket 121 in the inside of the refrigerator door 103 and secured against falling out by the surrounding door seal 119. It is not necessary to snap the ventilation valve 101 into the pocket 121 on the inside of the refrigerator door 103, so that simple installation can be realized and the ventilation valve 101 only has to be inserted into the pocket 121.
  • the pocket 121 forms an air path 123 which leads around the door seal 119 in the inside of the refrigerator door 103.
  • the ventilation valve 101 is inserted in the air path 121 and blocks an air flow from the interior of the refrigeration compartment. In the opposite direction, the ventilation valve 101 allows the air flow into the interior of the refrigeration compartment, so that a negative pressure in the refrigeration compartment can be prevented.
  • the elastic membrane 109 With an air flow inside the cold compartment, the elastic membrane 109 is raised from the base plate 105. The entering air flows through the resulting gap between membrane 109 and base plate 105. This reduces the door opening forces.
  • Fig. 5 shows a cross-sectional view of a refrigerator door 103 with a ventilation valve 101 inserted.
  • the dashed arrows show the air path when the refrigerator door 103 is opened.
  • the air enters the pocket 121 on the underside of the refrigerator door 103 below the door seal 119 and is passed through the interior of the refrigerator door 103 Ventilation valve 101 performed.
  • the air exits the inside of the refrigerator door 103 above the door seal 119.
  • the cover element 111 presses the membrane 109 against the air opening 107, so that the air flow can only pass the pocket 121 in one direction.
  • the door seal 119 is located in the U-shaped receptacle 117 in cross section and holds the ventilation valve 101 in the pocket 121.
  • the base plate 105 of the ventilation valve 101 is encompassed in the pocket 121 laterally and behind by the inner door. This results in a sealing of the base plate 105 against the inner door. Therefore, no undercuts in the refrigerator door 105 are required to lock the ventilation valve 101. Since no latching hooks are required on the base plate 105 to fasten the ventilation valve 101 to the refrigerator door 103, a simple injection molding tool without a slide can be used to manufacture the ventilation valve 101.
  • Fig. 6 shows an enlarged view of the ventilation valve 101 inserted into the refrigerator door 103 without an inserted door seal 119. If the membrane 109 protrudes laterally beyond the base plate 105, this can additionally be used as a seal against the inner door. In this case, the membrane 109 seals a lateral gap on the ventilation valve 101.
  • Fig. 7 shows a further view of the ventilation valve 101 inserted into the refrigerator door 103.
  • the base plate 105 can be provided with laterally projecting, elastic ribs 129, which are arranged laterally resiliently relative to the base plate 105.
  • the ribs 129 are injection molded onto the base plate 105, for example.
  • the thin, flexible ribs 129 on the base plate 105 provide a lateral seal against the inner door. This has the advantage that lateral manufacturing tolerances of the pocket 121 can be compensated for.
  • the base plate 105 and the cover element 111 are a molded plastic part.
  • the ventilation valve 101 can be used universally in various device series. An undercut on the inside of the refrigerator door 103 is not required to insert the ventilation valve 101, so that the inside door can be produced using a simple drawing tool.
  • the ventilation valve 101 can be used to form a small, easy-to-integrate component which can be inconspicuously integrated into the design of the refrigeration device 100.
  • the ventilation valve 101 forms a thin assembly, so that the installation situation in the refrigerator door 103 improves.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (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)

Description

Die vorliegende Erfindung betrifft ein Kältegerät mit einer Kältegerätetür, die ein eingesetztes Belüftungsventil zum Belüften eines Kältefachs bei einer Öffnung der Kältegerätetür umfasstThe present invention relates to a refrigerator with a refrigerator door, which comprises an inserted ventilation valve for ventilating a refrigeration compartment when the refrigerator door is opened

Bei Standgeräten wird oftmals im unteren Bereich der Türe ein kleiner Tunnel zwischen Türdichtung und Türinnenplatte geschaffen. Aufgrund der Energieeffizienz kann dieser Tunnel nur sehr klein gestaltet werden.With free-standing units, a small tunnel is often created between the door seal and the inner door panel in the lower area of the door. Due to the energy efficiency, this tunnel can only be made very small.

Die Offenlegungsschrift DE 10 2008 021 375 A1 zeigt ein Kältegerät mit einem Druckausgleichsventil.The disclosure DE 10 2008 021 375 A1 shows a refrigerator with a pressure compensation valve.

Die Offenlegungsschrift US 2005/061813 A1 zeigt einen Behälter für Lebensmittel.The disclosure US 2005/061813 A1 shows a container for food.

Die Offenlegungsschrift EP 2 090 854 A2 zeigt ein Kältegerät.The disclosure EP 2 090 854 A2 shows a refrigerator.

Die US 3 027 735 A zeigt ein Kältegerät mit einem Luftdurchgang, der an einem unteren Abschnitt einer Tür des Kältegeräts angeordnet ist, wobei ein Gummiblattventil mittels einer Platte über einer Öffnung des Luftdurchgangs an einer Unterseite der Tür angeordnet ist.The US 3,027,735 A shows a refrigerator with an air passage, which is arranged on a lower portion of a door of the refrigerator, wherein a rubber sheet valve is arranged by means of a plate over an opening of the air passage on a bottom of the door.

Es ist die der Erfindung zugrundeliegende Aufgabe, ein Kältegerät anzugeben, bei dem die Türöffnungskraft mittels eines einfach gestalteten und zuverlässigen Entlüftungsventils reduziert werden kann.It is the object of the invention to provide a refrigeration device in which the door opening force can be reduced by means of a simply designed and reliable ventilation valve.

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 with the features according to 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 Kältegerät mit einer Kältegerätetür gelöst, die ein eingesetztes Belüftungsventil zum Belüften eines Kältefachs bei einer Öffnung der Kältegerätetür umfasst, bei dem das Belüftungsventil eine Grundplatte mit einer Luftöffnung, eine elastische Membran zum Abdecken der Luftöffnung und ein auf die elastische Membran aufgesetztes Deckelelement zum Befestigen der elastischen Membran an der Grundplatte umfasst. Dadurch wird beispielsweise der technische Vorteil erreicht, dass die Türöffnungskräfte bei dem Kältegerät reduziert werden und dem Benutzer ein leichtes Öffnen ermöglicht wird. Das Belüftungsventil kann mit geringem Bauraum unauffällig in der Kältegerätetür verbaut werden und ist mit geringem technischem Aufwand herstellbar.According to one aspect of the invention, the object is achieved by a refrigeration device with a refrigeration device door, which comprises an inserted ventilation valve for ventilating a refrigeration compartment when the refrigeration device door is opened, in which the ventilation valve has a Base plate with an air opening, an elastic membrane for covering the air opening and a cover element placed on the elastic membrane for fastening the elastic membrane to the base plate. This achieves the technical advantage, for example, that the door opening forces are reduced in the refrigeration device and the user is able to open it easily. The ventilation valve can be installed inconspicuously in the refrigerator door with little installation space and can be produced with little technical effort.

Unter einem Kältegerät wird insbesondere ein Haushaltskältegerät verstanden, also ein Kältegerät, das zur Haushaltsführung in Haushalten oder im Gastronomiebereich eingesetzt wird, und insbesondere dazu dient Lebensmittel und/oder Getränke bei bestimmten Temperaturen zu lagern, wie beispielsweise ein Kühlschrank, ein Gefrierschrank, eine Kühlgefrierkombination, eine Gefriertruhe oder ein Weinkühlschrank.A refrigeration device is understood in particular to mean a household refrigeration device, that is to say a refrigeration device that is used for household management in households or in the catering sector, and in particular serves to store food and / or beverages at certain temperatures, such as a refrigerator, a freezer, a fridge-freezer combination, a freezer or a wine fridge.

Erfindungsgemäß umfasst das Belüftungsventil ein Filmscharnier zum drehbaren Verbinden der Grundplatte und des Deckelelementes. Dadurch wird beispielsweise der technische Vorteil erreicht, dass die Grundplatte und das Deckelelement durch ein gemeinsames Kunststoffformteil gebildet werden können und eine Herstellung des Belüftungsventils vereinfacht wird, da nur ein Spritzgusswerkzeug verwendet wird.According to the invention, the ventilation valve comprises a film hinge for rotatably connecting the base plate and the cover element. Thereby For example, the technical advantage is achieved that the base plate and the cover element can be formed by a common molded plastic part and production of the ventilation valve is simplified since only one injection molding tool is used.

In einer weiteren vorteilhaften Ausführungsform des Kältegerätes umfasst die Membran zumindest eine Öffnung zum Ausrichten der Membran an der Grundplatte. Dadurch wird beispielsweise der technische Vorteil erreicht, dass sich die Membran beim Auflegen auf die Grundplatte in der vorgesehenen Position befindet.In a further advantageous embodiment of the refrigeration device, the membrane comprises at least one opening for aligning the membrane on the base plate. This achieves the technical advantage, for example, that the membrane is in the intended position when it is placed on the base plate.

In einer weiteren vorteilhaften Ausführungsform des Kältegerätes umfasst das Deckelelement eine vorstehende Lippe zum Aufdrücken der Membran auf die Grundplatte. Dadurch wird beispielsweise der technische Vorteil erreicht, dass die Membran geglättet wird und Verwerfungen vermeiden werden.In a further advantageous embodiment of the refrigeration device, the cover element comprises a protruding lip for pressing the membrane onto the base plate. This has the technical advantage, for example, that the membrane is smoothed and warpage is avoided.

In einer weiteren vorteilhaften Ausführungsform des Kältegerätes umfasst die Grundplatte eine Aufnahme für eine Türdichtung der Kältegerätetür. Dadurch wird beispielsweise der technische Vorteil erreicht, dass das Belüftungsventil durch die Türdichtung gegen ein Herausfallen gesichert werden kann.In a further advantageous embodiment of the refrigeration device, the base plate comprises a receptacle for a door seal of the refrigeration device door. This has the technical advantage, for example, that the ventilation valve can be secured against falling out by the door seal.

Erfindungsgemäß umfasst die Kältegerätetür eine tiefgezogene Tasche zum Einsetzen des Belüftungsventils. Dadurch wird beispielsweise der technische Vorteil erreicht, dass das Belüftungsventil in die Kältegerätetür integriert werden kann und die Membran durch die Schwerkraft in der geschlossenen Position gehalten werden kann.According to the invention, the refrigerator door comprises a deep-drawn pocket for inserting the ventilation valve. This achieves the technical advantage, for example, that the ventilation valve can be integrated into the refrigerator door and the membrane can be held in the closed position by gravity.

In einer weiteren vorteilhaften Ausführungsform des Kältegerätes ist die Tasche an einer Unterseite der Kältegerätetür angeordnet. Dadurch wird beispielsweise der technische Vorteil erreicht, dass beim Öffnen der Kältegerätetür Luft von Unten in das Kältefach geführt wird.In a further advantageous embodiment of the refrigerator, the pocket is arranged on an underside of the refrigerator door. This has the technical advantage, for example, that when the refrigerator door is opened, air is led into the refrigerator compartment from below.

Erfindungsgemäß bildet die Tasche einen Luftweg um eine Türdichtung herum. Dadurch wird beispielsweise der technische Vorteil erreicht, dass die einströmende Luft vom Rand der Kältegerätetür eingeführt werden kann.According to the invention, the pocket forms an airway around a door seal. This has the technical advantage, for example, that the inflowing air can be introduced from the edge of the refrigerator door.

In einer weiteren vorteilhaften Ausführungsform des Kältegerätes umgreift die Tasche die Grundplatte formschlüssig. Dadurch wird beispielsweise der technische Vorteil erreicht, dass ein ungewolltes Ausströmen von Luft zwischen dem Belüftungsventil und der Kältegerätetür verhindert wird.In a further advantageous embodiment of the refrigeration device, the pocket engages around the base plate in a form-fitting manner. This has the technical advantage, for example, that an undesired outflow of air between the ventilation valve and the refrigerator door is prevented.

In einer weiteren vorteilhaften Ausführungsform des Kältegerätes steht die elastische Membran an einer Innenseite über die Grundplatte über. Dadurch wird beispielsweise der technische Vorteil erreicht, dass eine Dichtwirkung dem Belüftungsventil und der Kältegerätetür verbessert wird.In a further advantageous embodiment of the refrigeration device, the inner side of the elastic membrane projects beyond the base plate. This has the technical advantage, for example, that a sealing effect on the ventilation valve and the refrigerator door is improved.

In einer weiteren vorteilhaften Ausführungsform des Kältegerätes umfasst die Grundplatte zwei vorspringende Zapfen zum Aufsetzen des Deckelelementes. Dadurch wird beispielsweise der technische Vorteil erreicht, dass die Membran zuverlässig von dem aufgesetzten Deckelelement gehalten wird.In a further advantageous embodiment of the refrigeration device, the base plate comprises two projecting pins for attaching the cover element. This achieves the technical advantage, for example, that the membrane is reliably held by the attached cover element.

In einer weiteren vorteilhaften Ausführungsform des Kältegerätes umfasst das Deckelelement ein Rastmittel zum Einrasten in den vorspringenden Zapfen. Dadurch wird beispielsweise der technische Vorteil erreicht, dass die Membran schnell an der Grundplatte befestigt werden kann.In a further advantageous embodiment of the refrigeration device, the cover element comprises a latching means for latching into the projecting pin. This achieves the technical advantage, for example, that the membrane can be quickly attached to the base plate.

In einer weiteren vorteilhaften Ausführungsform des Kältegerätes umfasst die Grundplatte seitlich angespritzte Rippen zum Abdichten des Belüftungsventils. Dadurch wird beispielsweise ebenfalls der technische Vorteil erreicht, dass ein seitlicher Spalt abgedichtet werden kann.In a further advantageous embodiment of the refrigeration device, the base plate comprises laterally molded-on ribs for sealing the ventilation valve. This also achieves the technical advantage, for example, that a lateral gap can be sealed.

In einer weiteren vorteilhaften Ausführungsform des Kältegerätes weist die Luftöffnung einen rechteckigen Querschnitt auf. Dadurch wird beispielsweise der technische Vorteil erreicht, dass eine große Luftmenge schnell durch das Belüftungsventil treten kann.In a further advantageous embodiment of the refrigeration device, the air opening has a rectangular cross section. This has the technical advantage, for example, that a large amount of air can quickly pass through the ventilation valve.

In einer weiteren vorteilhaften Ausführungsform des Kältegerätes ist die Grundplatte und/oder das Deckelelement ein Kunststoffformteil. Dadurch wird beispielsweise der technische Vorteil erreicht, dass eine Herstellung des Belüftungsventils schnell und effizient durchgeführt werden kann.In a further advantageous embodiment of the refrigeration device, the base plate and / or the cover element is a molded plastic part. This achieves the technical advantage, for example, that the ventilation valve can be manufactured quickly and efficiently.

Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im Folgenden näher beschrieben.Exemplary embodiments of the invention are shown in the drawings and are described in more detail below.

Es zeigen:

Fig. 1
eine schematische Ansicht eines Kältegerätes; und
Fig. 2
eine Ansicht eines zerlegten Belüftungsventils;
Fig. 3
eine Ansicht des zusammengesetzten Belüftungsventils;
Fig. 4
eine Ansicht einer Kältegerätetür mit eingesetztem Belüftungsventil;
Fig. 5
eine Querschnittsansicht einer Kältegerätetür mit eingesetztem Belüftungsventil;
Fig. 6
eine vergrößerte Ansicht des in die Kältegerätetür eingesetzten Belüftungsventils; und
Fig. 7
eine weitere Ansicht des in die Kältegerätetür eingesetzten Belüftungsventils.
Show it:
Fig. 1
a schematic view of a refrigerator; and
Fig. 2
a view of a disassembled ventilation valve;
Fig. 3
a view of the composite vent valve;
Fig. 4
a view of a refrigerator door with ventilation valve inserted;
Fig. 5
a cross-sectional view of a refrigerator door with ventilation valve inserted;
Fig. 6
an enlarged view of the ventilation valve used in the refrigerator door; and
Fig. 7
another view of the ventilation valve used in the refrigerator door.

Fig. 1 zeigt einen Kühlschrank stellvertretend für ein Kältegerät 100 mit einer oberen Kühlschranktür und einer unteren Kühlschranktür. Der Kühlschrank dient beispielsweise zur Kühlung von Lebensmitteln und umfasst einen Kältemittelkreislauf mit einem Verdampfer, einem Verdichter, einem Verflüssiger und einem Drosselorgan. Der Verdampfer ist ein Wärmeaustauscher, in dem nach der Expansion das flüssige Kältemittel durch Wärmeaufnahme von dem zu kühlenden Medium, d.h. der Luft im Inneren des Kühlschranks, verdampft wird. Fig. 1 shows a refrigerator representative of a refrigerator 100 with an upper refrigerator door and a lower refrigerator door. The refrigerator is used, for example, to cool food and comprises a refrigerant circuit with an evaporator, a compressor, a condenser and a throttle element. The evaporator is a heat exchanger in which, after expansion, the liquid refrigerant is evaporated by absorbing heat from the medium to be cooled, ie the air inside the refrigerator.

Der Verdichter ist ein mechanisch betriebenes Bauteil, das Kältemitteldampf vom Verdampfer absaugt und bei einem höheren Druck zum Verflüssiger ausstößt. Der Verflüssiger ist ein Wärmeaustauscher, in dem nach der Kompression das verdampfte Kältemittel durch Wärmeabgabe an ein äußeres Kühlmedium, d.h. die Umgebungsluft, verflüssigt wird. Das Drosselorgan ist eine Vorrichtung zur ständigen Verminderung des Druckes durch Querschnittsverengung.The compressor is a mechanically operated component that sucks refrigerant vapor from the evaporator and discharges it to the condenser at a higher pressure. The condenser is a heat exchanger in which, after compression, the evaporated refrigerant by giving off heat to an external cooling medium, i.e. the ambient air is liquefied. The throttling device is a device for the constant reduction of pressure by narrowing the cross-section.

Das Kältemittel ist ein Fluid, das für die Wärmeübertragung in dem kälteerzeugenden System verwendet wird, das bei niedrigen Temperaturen und niedrigem Druck des Fluids Wärme aufnimmt und bei höherer Temperatur und höherem Druck des Fluids Wärme abgibt, wobei üblicherweise Zustandsänderungen des Fluids inbegriffen sind.The refrigerant is a fluid used for heat transfer in the cryogenic system that absorbs heat at low temperatures and low pressures of the fluid and releases heat at higher temperatures and pressures of the fluid, usually including changes in the state of the fluid.

Das Kältegerät 100 umfasst eine obere und eine untere Kältegerätetür 103, die jeweils ein Kältefach im Inneren des Kältegerätes 100 verschließen und von einem Benutzer geöffnet werden können.The refrigeration device 100 comprises an upper and a lower refrigeration device door 103, each of which closes a refrigeration compartment in the interior of the refrigeration device 100 and can be opened by a user.

Fig. 2 zeigt eine Ansicht eines zerlegten Belüftungsventils 101. Das Belüftungsventil 101 umfasst eine Grundplatte 105 und eine elastische Membran 109. In der Grundplatte 105 ist eine rechteckige Luftöffnung 107 gebildet. Die Membran 109 liegt auf der Oberseite der Grundplatte 105 auf. Beim Öffnen der Kältegerätetür 103 wird die Membran 109 durch den Unterdruck angehoben, so dass Luft durch die freigegebene Luftöffnung 107 strömen kann. Dadurch kann ein Unterdruck im Inneren des Kältefaches abgebaut werden, der die Öffnung der Kältegerätetür 103 erschweren würde. Die Membran 109 ist beispielsweise eine Gummimembran mit einer Stärke von 0,35 mm. Fig. 2 shows a view of a disassembled ventilation valve 101. The ventilation valve 101 comprises a base plate 105 and an elastic membrane 109. A rectangular air opening 107 is formed in the base plate 105. The membrane 109 lies on the top of the base plate 105. When the refrigerator door 103 is opened, the membrane 109 is raised by the negative pressure, so that air can flow through the released air opening 107. As a result, a negative pressure can be reduced in the interior of the refrigeration compartment, which would make it difficult to open the refrigerator door 103. The membrane 109 is, for example, a rubber membrane with a thickness of 0.35 mm.

Die Grundplatte 105 umfasst zwei zylinderförmige Zapfen 125, die ausgehend von der Grundplatte 105 nach oben ragen. In entsprechender Weise umfasst die Membran 109 zwei Öffnungen 113 an entsprechenden Positionen, die beim Zusammensetzen des Belüftungsventils 101 auf die Zapfen 125 gesetzt werden. Am hinteren Ende der Grundplatte 105 ist mittels eines Filmscharniers 131 ein Deckelelement 111 befestigt. Da ein Filmscharnier 131 verwendet wird, kann die Grundplatte 105 zusammen mit dem Deckelelement 111 in einem einzigen Spritzgussformteil mit einem Spritzgusswerkzeug gefertigt werden. Das Filmscharnier 131 befindet sich in einem ungebogenen Zustand und das Deckelelement 111 ist geöffnet.The base plate 105 comprises two cylindrical pins 125 which protrude upwards from the base plate 105. In a corresponding manner, the membrane 109 comprises two openings 113 at corresponding positions, which are placed on the pins 125 when the ventilation valve 101 is assembled. At the rear end of the base plate 105, a cover element 111 is fastened by means of a film hinge 131. Since a film hinge 131 is used, the base plate 105 can be produced together with the cover element 111 in a single injection molded part with an injection molding tool. The film hinge 131 is in an unbent state and the cover element 111 is open.

In den Deckelelement 111 sind Rastmittel 127 gebildet, die beim Zuklappen des Deckelelementes 111 auf den Zapfen 125 einrasten. Durch Umklappen des Deckelelementes 111, das mittels des Filmscharniers 131 direkt an der Grundplatte 105 angebunden ist, wird die Membran 109 nach dem Einrasten der Rastmittel 127 fixiert.Latching means 127 are formed in the cover element 111, which snap into place on the pin 125 when the cover element 111 is closed. By folding over the cover element 111, which is connected directly to the base plate 105 by means of the film hinge 131, the membrane 109 is fixed after the latching means 127 has snapped into place.

An der Hinterseite des Deckelelementes 111 ist eine vorstehende Lippe 115 gebildet. An der Vorderseite der Grundplatte 105 befindet sich eine in Querschnitt u-förmige Aufnahme 117 für eine umlaufende Türdichtung. In die Aufnahme 117 wird die Türdichtung der Kältegerätetür 103 eingesetzt. Dadurch kann das Belüftungsventil 101 hinter der Türdichtung fixiert werden. Die Türdichtung wird beispielsweise durch eine umlaufende Gummidichtung gebildet, die ein Magnetelement umfasst.A protruding lip 115 is formed on the rear side of the cover element 111. At the front of the base plate 105 there is a receptacle 117 with a U-shaped cross section for a circumferential door seal. The door seal of the refrigerator door 103 is inserted into the receptacle 117. This allows the ventilation valve 101 to be fixed behind the door seal. The door seal is formed, for example, by a circumferential rubber seal that includes a magnetic element.

Fig. 3 zeigt eine Ansicht des zusammengesetzten Belüftungsventils 101. Das Deckelelement 111 ist mittels der Rastmittel 127 auf den Zapfen 125 der Grundplatte 105 eingerastet und befindet sich im geschlossenen Zustand. Die Membran 109 ist dadurch zwischen der Grundplatte 105 und einem Deckelelement 111 eingeklemmt und fixiert. Fig. 3 shows a view of the assembled ventilation valve 101. The cover element 111 is engaged by means of the latching means 127 on the pin 125 of the base plate 105 and is in the closed state. The membrane 109 is thereby clamped and fixed between the base plate 105 and a cover element 111.

Im zugeklappten Zustand liegt die Lippe 115 des Deckelelementes 111 auf der Membran 109 auf und dient zum Glätten der Membran 109. Die Lippe 115 an dem Deckelelement 111 drückt die Membran 109 vor der Luftöffnung 107 nach unten. Dadurch werden Verwerfungen verhindert und für eine optimale Abdichtung gesorgt. Dadurch ist sichergestellt, dass das Belüftungsventil 101 im geschlossenen Zustand gut abdichtet. Das Filmscharnier 113 befindet sich im gebogenen Zustand.In the closed state, the lip 115 of the cover element 111 rests on the membrane 109 and serves to smooth the membrane 109. The lip 115 on the cover element 111 presses the membrane 109 downward in front of the air opening 107. This prevents warping and ensures an optimal seal. This ensures that the ventilation valve 101 seals well in the closed state. The film hinge 113 is in the bent state.

Fig. 4 zeigt eine Ansicht einer Kältegerätetür 103 mit eingesetztem Belüftungsventil 101. Die Innenseite der Kältegerätetür 103 ist aus einer gezogenen Platine gebildet. An der Unterseite der Kältegerätetür 103 ist eine tiefgezogene Tasche 121 eingeformt, die eine Ausnehmung in der Kältegerätetür 103 definiert. Fig. 4 shows a view of a refrigerator door 103 with a ventilation valve 101 inserted. The inside of the refrigerator door 103 is formed from a drawn circuit board. A deep-drawn pocket 121 is formed on the underside of the refrigerator door 103 and defines a recess in the refrigerator door 103.

Die Baugruppe des Belüftungsventils 101 ist in die vorgesehene Tasche 121 in der Innenseite der Kältegerätetür 103 eingeschoben und durch die umlaufende Türdichtung 119 gegen ein Herausfallen gesichert. Ein Einrasten des Belüftungsventils 101 in der Tasche 121 auf der Innenseite der Kältegerätetür 103 ist nicht erforderlich, so dass eine einfache Montage realisiert werden kann und das Belüftungsventil 101 nur in die Tasche 121 eingelegt werden muss.The assembly of the ventilation valve 101 is pushed into the provided pocket 121 in the inside of the refrigerator door 103 and secured against falling out by the surrounding door seal 119. It is not necessary to snap the ventilation valve 101 into the pocket 121 on the inside of the refrigerator door 103, so that simple installation can be realized and the ventilation valve 101 only has to be inserted into the pocket 121.

Die Tasche 121 bildet einen Luftweg 123, der in der Innenseite der Kältegerätetür 103 um die Türdichtung 119 herumführt. Das Belüftungsventil 101 ist in dem Luftweg 121 eingesetzt und sperrt einen Luftstrom aus dem Inneren des Kältefachs. In der entgegengesetzten Richtung lässt das Belüftungsventil 101 den Luftstrom in das Innere der Kältefachs zu, so dass ein Unterdruck im Kältefach verhindert werden kann. Bei einem Luftstrom in das Innere des Kältefachs wird die elastische Membran 109 von der Grundplatte 105 angehoben. Durch den hierbei entstehenden Spalt zwischen Membran 109 und Grundplatte 105 strömt die eintretende Luft. Dadurch reduzieren sich die Türöffnungskräfte.The pocket 121 forms an air path 123 which leads around the door seal 119 in the inside of the refrigerator door 103. The ventilation valve 101 is inserted in the air path 121 and blocks an air flow from the interior of the refrigeration compartment. In the opposite direction, the ventilation valve 101 allows the air flow into the interior of the refrigeration compartment, so that a negative pressure in the refrigeration compartment can be prevented. With an air flow inside the cold compartment, the elastic membrane 109 is raised from the base plate 105. The entering air flows through the resulting gap between membrane 109 and base plate 105. This reduces the door opening forces.

Fig. 5 zeigt eine Querschnittsansicht einer Kältegerätetür 103 mit eingesetztem Belüftungsventil 101. Die gestrichelten Pfeile zeigen den Luftweg beim Öffnen der Kältegerätetür 103. Die Luft tritt an der Unterseite der Kältegerätetür 103 unterhalb der Türdichtung 119 in die Tasche 121 ein und wird im Inneren der Kältegerätetür 103 durch das Belüftungsventil 101 geführt. Oberhalb der Türdichtung 119 tritt die Luft an der Innenseite der Kältegerätetür 103 wieder aus. Das Deckelelement 111 drückt die Membran 109 gegen die Luftöffnung 107, so dass der Luftstrom die Tasche 121 nur in der einen Richtung passieren kann. Fig. 5 shows a cross-sectional view of a refrigerator door 103 with a ventilation valve 101 inserted. The dashed arrows show the air path when the refrigerator door 103 is opened. The air enters the pocket 121 on the underside of the refrigerator door 103 below the door seal 119 and is passed through the interior of the refrigerator door 103 Ventilation valve 101 performed. The air exits the inside of the refrigerator door 103 above the door seal 119. The cover element 111 presses the membrane 109 against the air opening 107, so that the air flow can only pass the pocket 121 in one direction.

Die Türdichtung 119 befindet sich in der im Querschnitt u-förmigen Aufnahme 117 und hält das Belüftungsventil 101 in der Tasche 121. Die Grundplatte 105 des Belüftungsventils 101 wird in der Tasche 121 seitlich und hinten von der Innentür umgriffen. Dadurch erfolgt eine Abdichtung der Grundplatte 105 gegen die Innentüre. Daher sind keine Hinterschnitte in der Kältegerätetür 105 zum Verrasten des Belüftungsventils 101 erforderlich. Da an der Grundplatte 105 keine Rasthaken zur Befestigung des Belüftungsventils 101 an der Kältegerätetür 103 erforderlich sind, kann ein einfaches Spritzgusswerkzeug ohne Schieber zur Herstellung des Belüftungsventils 101 verwendet werden.The door seal 119 is located in the U-shaped receptacle 117 in cross section and holds the ventilation valve 101 in the pocket 121. The base plate 105 of the ventilation valve 101 is encompassed in the pocket 121 laterally and behind by the inner door. This results in a sealing of the base plate 105 against the inner door. Therefore, no undercuts in the refrigerator door 105 are required to lock the ventilation valve 101. Since no latching hooks are required on the base plate 105 to fasten the ventilation valve 101 to the refrigerator door 103, a simple injection molding tool without a slide can be used to manufacture the ventilation valve 101.

Fig. 6 zeigt eine vergrößerte Ansicht des in die Kältegerätetür 103 eingesetzten Belüftungsventils 101 ohne eingelegte Türdichtung 119. Wenn die Membran 109 seitlich über die Grundplatte 105 übersteht, kann diese zusätzlich als Abdichtung gegen die Innentüre verwendet werden. Die Membran 109 dichtet in diesem Fall einen seitlichen Spalt an dem Belüftungsventil 101 ab. Fig. 6 shows an enlarged view of the ventilation valve 101 inserted into the refrigerator door 103 without an inserted door seal 119. If the membrane 109 protrudes laterally beyond the base plate 105, this can additionally be used as a seal against the inner door. In this case, the membrane 109 seals a lateral gap on the ventilation valve 101.

Fig. 7 zeigt eine weitere Ansicht des in die Kältegerätetür 103 eingesetzten Belüftungsventils 101. Fig. 7 shows a further view of the ventilation valve 101 inserted into the refrigerator door 103.

Weiter kann die Grundplatte 105 mit seitlich abstehenden, elastischen Rippen 129 versehen sein, die gegenüber der Grundplatte 105 seitlich federnd angeordnet sind. Die Rippen 129 sind beispielsweise an der Grundplatte 105 angespritzt. Durch die dünnen, flexiblen Rippen 129 an der Grundplatte 105 wird eine seitliche Abdichtung gegen die Innentüre erreicht. Dadurch wird der Vorteil erreicht, dass seitliche Fertigungstoleranzen der Tasche 121 ausgeglichen werden können.Furthermore, the base plate 105 can be provided with laterally projecting, elastic ribs 129, which are arranged laterally resiliently relative to the base plate 105. The ribs 129 are injection molded onto the base plate 105, for example. The thin, flexible ribs 129 on the base plate 105 provide a lateral seal against the inner door. This has the advantage that lateral manufacturing tolerances of the pocket 121 can be compensated for.

Die Grundplatte 105 und das Deckelelement 111 sind ein Kunststoffformteil.The base plate 105 and the cover element 111 are a molded plastic part.

Das Belüftungsventil 101 ist universell in verschiedenen Gerätereihen einsetzbar. Zum Einsetzen des Belüftungsventils 101 ist kein Hinterschnitt an der Innenseite der Kältegerätetür 103 erforderlich, so dass die Innentüre durch ein einfaches Ziehwerkzeug hergestellt werden kann. Durch das Belüftungsventil 101 kann ein kleines, leicht zu integrierendes Bauteil gebildet werden, das sich unauffällig in das Design des Kältegerätes 100 integrieren lässt. Das Belüftungsventil 101 bildet eine dünne Baugruppe, so dass sich die Einbausituation in der Kältegerätetür 103 verbessert.The ventilation valve 101 can be used universally in various device series. An undercut on the inside of the refrigerator door 103 is not required to insert the ventilation valve 101, so that the inside door can be produced using a simple drawing tool. The ventilation valve 101 can be used to form a small, easy-to-integrate component which can be inconspicuously integrated into the design of the refrigeration device 100. The ventilation valve 101 forms a thin assembly, so that the installation situation in the refrigerator door 103 improves.

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 explained in the description or shown in the figures.

BEZUGSZEICHENLISTEREFERENCE SIGN LIST

100100
KältegerätRefrigerator
101101
VentilValve
103103
KältegerätetürRefrigerator door
105105
Grundplattebaseplate
107107
LuftöffnungAir opening
109109
Membranmembrane
111111
DeckelelementCover element
113113
Öffnungopening
115115
Lippelip
117117
Aufnahmeadmission
119119
TürdichtungDoor seal
121121
Taschebag
123123
LuftwegBy air
125125
Zapfenspigot
127127
RastmittelLocking means
129129
RippenRibs
131131
FilmscharnierFilm hinge
133133
MagnetelementMagnetic element

Claims (12)

  1. Refrigeration appliance (100) with a refrigeration appliance door (103), which comprises an installed ventilation valve (101) for ventilating a refrigeration compartment when the refrigeration appliance door (103) is opened, wherein the refrigeration appliance door (103) comprises a deep-drawn pocket (121) for installing the ventilation valve (101) and the pocket (121) forms an air path (123) around a door seal (119) and wherein the ventilation valve (101) has a base plate (105) with an air opening (107) and a resilient membrane (109) for covering the air opening (107), wherein the resilient membrane (109) is lifted from the base plate (105) when air flows into an interior of the refrigeration compartment, and the ventilation valve (101) comprises a lid element (111) attached to the resilient membrane (109) for fastening the resilient membrane (109) to the base plate (105) and a film hinge (131) for rotatably connecting the base plate (105) and the lid element (111).
  2. Refrigeration appliance (100) according to claim 1, characterised in that the membrane (109) comprises at least one opening (113) for orienting the membrane (109) on the base plate (105).
  3. Refrigeration appliance (100) according to one of the preceding claims, characterised in that the lid element (111) comprises a protruding lip (115) for pressing the membrane (109) against the base plate (105).
  4. Refrigeration appliance (100) according to one of the preceding claims, characterised in that the base plate (105) comprises a receptacle (117) for the door seal (119) of the refrigeration appliance door (103).
  5. Refrigeration appliance (100) according to one of the preceding claims, characterised in that the pocket (121) is arranged on an underside of the refrigeration appliance door (103).
  6. Refrigeration appliance (100) according to one of the preceding claims, characterised in that the pocket (121) encompasses the base plate (105) in a form-fitting manner.
  7. Refrigeration appliance (100) according to one of the preceding claims, characterised in that the resilient membrane (109) projects beyond the base plate (105) on an inner side.
  8. Refrigeration appliance (100) according to one of the preceding claims, characterised in that the base plate (105) comprises two protruding studs (125) for the placement of the lid element (111).
  9. Refrigeration appliance (100) according to claim 8, characterised in that the lid element (111) comprises a latching means (127) for latching into the protruding studs (125).
  10. Refrigeration appliance (100) according to one of the preceding claims, characterised in that the base plate (105) comprises ribs (129) which are moulded onto the side for sealing off the ventilation valve (101).
  11. Refrigeration appliance (100) according to one of the preceding claims, characterised in that the air opening (107) has a rectangular cross-section.
  12. Refrigeration appliance (100) according to one of the preceding claims, characterised in that the base plate (105) and/or the lid element (111) is a plastic shaped part.
EP14744068.9A 2013-08-07 2014-07-24 Refrigerator Active EP3030852B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14744068T PL3030852T3 (en) 2013-08-07 2014-07-24 Refrigerator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013215518.2A DE102013215518A1 (en) 2013-08-07 2013-08-07 CHILLER WITH A VENTILATION VALVE
PCT/EP2014/065877 WO2015018645A1 (en) 2013-08-07 2014-07-24 Refrigerator having an air-admission valve

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EP3030852A1 EP3030852A1 (en) 2016-06-15
EP3030852B1 true EP3030852B1 (en) 2020-03-04

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EP (1) EP3030852B1 (en)
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DE (1) DE102013215518A1 (en)
PL (1) PL3030852T3 (en)
WO (1) WO2015018645A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106500442B (en) * 2016-10-27 2019-11-29 合肥华凌股份有限公司 A kind of refrigerator reduces structure, freezer door body and the refrigerator of negative pressure in case
CN110345700A (en) * 2018-04-02 2019-10-18 合肥华凌股份有限公司 Refrigeration equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3027735A (en) * 1960-01-25 1962-04-03 Gen Motors Corp Refrigerating apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS643483A (en) * 1988-05-26 1989-01-09 Sanyo Electric Co Refrigeration accelerator
DE10060998C1 (en) * 2000-12-08 2001-10-31 Braun Gmbh Valve for food storage container has opening tab with suction aperture and smooth edging for sealing lip of suction connector of vacuum pump
US7328730B2 (en) * 2000-12-08 2008-02-12 Braun Gmbh Food storage containers
ITRN20080008A1 (en) * 2008-02-15 2009-08-16 Indesit Co Spa ELECTRIC DEVICE FOR COOLING AND CONSERVATION OF FOOD.
DE102008021375A1 (en) * 2008-04-29 2009-11-05 BSH Bosch und Siemens Hausgeräte GmbH Refrigeration unit with pressure compensation valve

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3027735A (en) * 1960-01-25 1962-04-03 Gen Motors Corp Refrigerating apparatus

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CN105492847B (en) 2018-11-13
WO2015018645A1 (en) 2015-02-12
PL3030852T3 (en) 2020-08-24
DE102013215518A1 (en) 2015-02-12
CN105492847A (en) 2016-04-13

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