EP2691712B1 - Refrigerator having an integrally formed air channel - Google Patents

Refrigerator having an integrally formed air channel Download PDF

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Publication number
EP2691712B1
EP2691712B1 EP12710683.9A EP12710683A EP2691712B1 EP 2691712 B1 EP2691712 B1 EP 2691712B1 EP 12710683 A EP12710683 A EP 12710683A EP 2691712 B1 EP2691712 B1 EP 2691712B1
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EP
European Patent Office
Prior art keywords
air duct
refrigeration appliance
appliance according
covering
inner container
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EP12710683.9A
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German (de)
French (fr)
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EP2691712A2 (en
Inventor
Alexander Koch
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Publication of EP2691712A2 publication Critical patent/EP2691712A2/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
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in 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
    • F25D2317/067—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 air ducts

Definitions

  • the present invention relates to a refrigeration appliance, in particular a domestic refrigeration appliance, with a deep-drawn inner container delimiting a storage chamber and an air duct formed in a rear wall of the inner container.
  • a refrigeration appliance in particular a domestic refrigeration appliance
  • a deep-drawn inner container delimiting a storage chamber and an air duct formed in a rear wall of the inner container.
  • Such an air duct is often provided in particular in Nofrost refrigerators to distribute cold air from a partitioned from the storage chamber evaporator chamber in the storage chamber.
  • a cover is required, which delimits the air duct from the storage chamber.
  • WO 2006/120099 A1 a refrigeration device is known, is formed in the air duct in a wall of the storage chamber and separated from the storage chamber by a cover, protrude from the intervening in undercuts on lateral edges of the air duct webs.
  • JP 2002 295948 A discloses a refrigerator in which an air duct cover is held by a claw on the wall of the storage chamber.
  • Object of the present invention is to provide a refrigerator with molded on the inner container air duct, in which a cover of the air duct is quick and easy to install.
  • the fingers In order to allow a tight fit of the cover in a well-defined position on the air duct, the fingers preferably have a complementary to the undercut of the flank (s) cross-section.
  • FIG Fig. 2 Adjacent to a portion of the rear wall 4 with the air channel 7 recessed therein, FIG Fig. 2 a portion of a cover 11.
  • a base plate or core portion 12 of the plastic injection molded cover 11 is provided to be placed in the air channel 7, with lateral edges 13 of the core portion 12 contacting the flanks 8 of the air channel 7 and from the edges 13 in FIG Engage the air duct 7 protruding elastic fingers 14 in the undercuts 10 of the flanks 8.
  • the fingers 14 are arranged at the edges 13 in pairs at the same height.
  • Fig. 3 shows a view of a portion of the cover 11 according to a second embodiment of the invention.
  • the fingers 14 are opposite to the embodiment of Fig. 2 slightly elongated, and on both sides of the core portion 12 extend edge strips 15, which, when the cover 11 in the in Fig. 4 shown manner to the air duct 7 is mounted, adjacent to the air duct 7 on the rear wall 4 to prevent the escape of air from the air duct 7 along the edges of the cover 11 or at least limit.
  • the fingers 14 carry in the undercuts 10 engaging locking projections 16, the cross-section to that of the undercuts 10 is complementary to ensure an exact positioning of the cover 11.
  • An edge 15 of the facing edge 17 of the locking projections 16 is oriented obliquely to the depth direction of the inner container 1, so that when the cover 11 is pulled away from the air duct 7, a sideways into the interior of the channel 7 directed force is exposed, the finger 14th bends and makes a removal of the cover 11 from the air duct 7 possible.
  • each edge strips 15 and the rear wall 4 each have an elastic sealing strip 18 may be arranged, which is elastically compressed and the flanks of the air channel 7 seals when the fingers 14 are locked in the undercuts 10.
  • Air outlet openings 24 may be punched out of the substantially planar core region 12 of the cover 11 or cut out in some other way.
  • the outlet openings 24 are formed as slightly over the rear wall 4 and the surrounding core portion 12 in the inner container 1 in projecting nozzle, which, as in the section of Fig. 8 shown on its side facing the air duct 7 side rounded portions 25 have to discharge a low-turbulence, approximately horizontally oriented air flow into the inner container 1 into it.
  • Fig. 10 shows an embodiment of the cover 11, in which this is divided into two separate parts 27, 28.
  • the upper part 27 comprises the upstream portion 11a of the cover 11 and a connected to this portion 11a via a film hinge 26, provided with two slots 30 plate 29.
  • the plate 29 comes in the mounted state above the horizontal portion 7b of the air duct 7 to lie.
  • a correspondingly highly flexible section formed by a plurality of segments 32 can also be provided at the transition between sections 7b, 7c or 11b, 11c.
  • the flexible portion formed by the segments 32 to be longer than bridging the rounded transition region 33 between the channel sections 7a, 7b and 7b, 7c, it is possible to extend the cover over its entire length beyond the boundaries of the channel sections 7a, 7b, 7c to move away and so compensate for dimensional tolerances of the inner container.

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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, insbesondere ein Haushaltskältegerät, mit einem eine Lagerkammer begrenzenden tiefgezogenen Innenbehälter und einem in einer Rückwand des Innenbehälters ausgeformten Luftkanal. Ein solcher Luftkanal ist insbesondere bei Nofrost-Kältegeräten oft vorgesehen, um Kaltluft aus einer von der Lagerkammer abgeteilten Verdampferkammer in der Lagerkammer zu verteilen.The present invention relates to a refrigeration appliance, in particular a domestic refrigeration appliance, with a deep-drawn inner container delimiting a storage chamber and an air duct formed in a rear wall of the inner container. Such an air duct is often provided in particular in Nofrost refrigerators to distribute cold air from a partitioned from the storage chamber evaporator chamber in the storage chamber.

Um die Kaltluft in dem Luftkanal über längere Strecken führen zu können, ist eine Abdeckung erforderlich, die den Luftkanal von der Lagerkammer abgrenzt. Aus WO 2006/120099 A1 ist ein Kältegerät bekannt, bei dem Luftkanal in einer Wand der Lagerkammer ausgeformt und von der Lagerkammer durch eine Abdeckung getrennt ist, von der in Hinterschneidungen an seitlichen Flanken des Luftkanals eingreifende Stege abstehen. JP 2002 295948 A offenbart ein Kältegerät, bei dem eine Luftkanalabdeckung durch eine Klaue an der Wand der Lagerkammer gehalten ist.To be able to guide the cold air in the air duct over longer distances, a cover is required, which delimits the air duct from the storage chamber. Out WO 2006/120099 A1 a refrigeration device is known, is formed in the air duct in a wall of the storage chamber and separated from the storage chamber by a cover, protrude from the intervening in undercuts on lateral edges of the air duct webs. JP 2002 295948 A discloses a refrigerator in which an air duct cover is held by a claw on the wall of the storage chamber.

Aufgabe der vorliegenden Erfindung ist, ein Kältegerät mit am Innenbehälter ausgeformtem Luftkanal zu schaffen, bei dem eine Abdeckung des Luftkanals schnell und einfach montierbar ist.Object of the present invention is to provide a refrigerator with molded on the inner container air duct, in which a cover of the air duct is quick and easy to install.

Die Aufgabe wird gelöst, durch ein Kältegerät, insbesondere ein Haushaltskältegerät, mit den Merkmalen des Anspruchs 1. Im Gegensatz zu einem entlang einer Flanke des Luftkanals durchgehenden Steg versteifen die voneinander beabstandeten Finger die Abdeckung nicht, so dass die Abdeckung beim Einbau und, falls nötig, beim Ausbau geringfügig durchgebogen werden kann und so die Finger mit geringem Kraftaufwand, einer nach dem anderen, in der Hinterschneidung verrastet bzw. wieder aus der Hinterschneidung herausgezogen werden können.The object is achieved by a refrigerator, in particular a household refrigeration appliance, with the features of claim 1. In contrast to a continuous along an edge of the air duct web, the spaced apart fingers do not stiffen the cover, so that the cover during installation and, if necessary , can be bent slightly when removing and so the fingers with little effort, one after the other, can be locked in the undercut or pulled out of the undercut again.

Insbesondere wenn die Wand des Innenbehälters eine Rückwand ist, kann der Luftkanal einschließlich der Hinterschneidung auf einfache Weise beim Tiefziehen des Innenbehälters mit ausgeformt werden.In particular, when the wall of the inner container is a rear wall, the air duct including the undercut can be formed in a simple manner during deep drawing of the inner container with.

Wenn die Hinterschneidung an einander gegenüberliegenden Flanken des Luftkanals gebildet ist, kann die Abdeckung insgesamt durch Verrastung in den Hinterschneidungen befestigt werden, ohne dass Bedarf nach weiteren Befestigungsmitteln besteht. Folglich müssen auch keine Öffnungen im Innenbehälter geschaffen werden, durch die Feuchtigkeit in die Isolationsschicht gelangen könnte.If the undercut is formed on opposite flanks of the air duct, the cover can be fixed in total by latching in the undercuts, without the need for further fasteners. Consequently, no openings in the inner container must be created, could get through the moisture in the insulation layer.

Die Hinterschneidung erstreckt sich vorzugsweise über die gesamte Länge des Luftkanals, um eine Verrastung der Abdeckung an beliebiger Stelle des Luftkanals zu ermöglichen.The undercut preferably extends over the entire length of the air duct to allow latching of the cover at any location of the air duct.

Um einen festen Sitz der Abdeckung in wohldefinierter Position am Luftkanal zu ermöglichen, haben die Finger vorzugsweise einen zu der Hinterschneidung der Flanke(n) komplementären Querschnitt.In order to allow a tight fit of the cover in a well-defined position on the air duct, the fingers preferably have a complementary to the undercut of the flank (s) cross-section.

Um ein unkontrolliertes Entweichen von Luft entlang der Ränder der Abdeckung zu vermeiden, weist eine Grundplatte der Abdeckung vorzugsweise beiderseits eines den Luftkanal überbrückenden Kernbereichs an der Wand des Innenbehälters beiderseits des Luftkanals anliegende Randstreifen auf. Die Randstreifen und der Kernbereich können eine einzige ebene Platte bilden, wobei die Finger jeweils eine Grenze zwischen Kernbereich und Randstreifen markieren.In order to avoid an uncontrolled escape of air along the edges of the cover, a base plate of the cover preferably has on both sides of a core region bridging the air duct on the wall of the inner container on both sides of the air channel adjacent edge strips. The edge strips and the core area can form a single flat plate, the fingers each marking a boundary between the core area and the edge strip.

Um die Dichtwirkung der Randstreifen zu verbessern, können diese in den Luftkanal flankierenden Vertiefungen der Rückwand aufgenommen sein.In order to improve the sealing effect of the edge strips, these can be accommodated in the air duct flanking recesses of the rear wall.

Luftauslassöffnungen können an der Abdeckung vorgesehen sein, um die in dem Luftkanal zirkulierende Luft kontrolliert in der Lagerkammer zu verteilen.Air outlet openings may be provided on the cover to controllably distribute the circulating air in the air duct in the storage chamber.

Um den Strömungswiderstand des Luftkanals gering zu halten, können Luftaustrittsöffnungen im Querschnitt abgerundete Ränder an ihrer dem Luftkanal zugewandten Seite aufweisen. Derartige abgerundete Ränder sind insbesondere durch Spritzformung der Abdeckung realisierbar.In order to keep the flow resistance of the air channel low, air outlet openings in cross section may have rounded edges on their side facing the air duct. Such rounded edges can be realized in particular by injection molding of the cover.

Die Abdeckung kann eine den Luftkanal längs unterteilende Rippe tragen, um von dem Luftkanal einen Nebenkanal, z.B. zur Unterbringung von elektrischen Leitungen oder dergleichen abzuteilen.The cover may carry a rib longitudinally subdividing the air duct to provide from the air duct a secondary channel, e.g. to divide to accommodate electrical lines or the like.

Der Luftkanal kann wenigstens zwei in Tiefenrichtung des Innenbehälters gegeneinander versetzte Abschnitte umfassen, um den Innenraum in seiner gesamten Höhe einschließlich eines sich in der Vertikalen mit einer Maschinenraumnische überschneidenden Bereichs um einem nicht gradlinigen Verlauf des Luftkanals an der Rückwand des Innenbehälters folgen zu können, kann die Abdeckung wenigstens durch ein Scharnier in ihrer Längsrichtung aufeinander folgende Abschnitte unterteilt sein. Vorzugsweise ist dieses Scharnier ein Folienscharnier.The air duct may include at least two mutually offset in the depth direction of the inner container portions to follow the interior in its entire height, including a vertically overlapping with a machine room niche area to a non-straight course of the air duct on the rear wall of the inner container, the Cover be subdivided at least by a hinge in its longitudinal direction successive sections. Preferably, this hinge is a film hinge.

Weitere Merkmale und Vorteile der Erfindung werden deutlich anhand der nachfolgenden Beschreibung von Ausführungsbeispielen unter Bezugnahme auf die beigefügten Figuren. Aus dieser Beschreibung und den Figuren gehen auch Merkmale der Ausführungsbeispiele hervor, die nicht in den Ansprüchen erwähnt sind. Solche Merkmale können auch in anderen als den hier spezifisch offenbarten Kombinationen auftreten. Die Tatsache, dass mehrere solche Merkmale in einem gleichen Satz oder in einer anderen Art von Textzusammenhang miteinander erwähnt sind, rechtfertigt daher nicht den Schluss, dass sie nur in der spezifisch offenbarten Kombination auftreten können; stattdessen ist grundsätzlich davon auszugehen, dass von mehreren solchen Merkmalen auch einzelne weggelassen oder abgewandelt werden können, sofern dies die Funktionsfähigkeit der Erfindung nicht in Frage stellt. Es zeigen:

Fig. 1
eine schematische perspektivische Ansicht eines Kältegeräte-Innenbehälters gemäß der vorliegenden Erfindung;
Fig. 2
Abschnitte der Rückwand des Innenbehälters und einer zur Montage an der Rückwand vorgesehnen Abdeckung gemäß einer ersten Ausgestaltung der Erfindung;
Fig. 3
einen Abschnitt einer Abdeckung gemäß einer zweiten Ausgestaltung der Erfindung;
Fig. 4
einen schematischen horizontalen Schnitt durch die Abdeckung der Fig. 3 in an der Rückwand montiertem Zustand;
Fig. 5
einen zu Fig. 4 analogen Schnitt gemäß einer dritten Ausgestaltung der Erfindung;
Fig. 6
einen zu Fig. 4 analogen Schnitt gemäß einer vierten Ausgestaltung der Erfindung;
Fig. 7
einen zu Fig. 4 analogen Schnitt gemäß einer fünften Ausgestaltung der Erfindung;
Fig. 8
einen vertikalen Schnitt durch den Luftkanal und die Abdeckung gemäß einer sechsten Ausgestaltung der Erfindung;
Fig. 9
eine perspektivische Ansicht einer Abdeckung gemäß einer siebten Ausgestaltung der Erfindung;
Fig. 10
eine zu Fig. 8 analoge Ansicht gemäß einer achten Ausgestaltung der Erfindung; und
Fig. 11
einen vertikalen Schnitt durch den Luftkanal und die Abdeckung gemäß einer neunten Ausgestaltung der Erfindung.
Further features and advantages of the invention will become apparent from the following description of embodiments with reference to the accompanying figures. From this description and the figures also show features of the embodiments, which are not mentioned in the claims. Such features may also occur in combinations other than those specifically disclosed herein. Therefore, the fact that several such features are mentioned in the same sentence or in a different type of textual context does not justify the conclusion that they can occur only in the specific combination disclosed; instead, it is generally to be assumed that it is also possible to omit or modify individual ones of several such features, provided this does not call into question the functionality of the invention. Show it:
Fig. 1
a schematic perspective view of a refrigeration device inner container according to the present invention;
Fig. 2
Portions of the rear wall of the inner container and an intended for mounting on the rear wall cover according to a first embodiment of the invention;
Fig. 3
a portion of a cover according to a second embodiment of the invention;
Fig. 4
a schematic horizontal section through the cover of Fig. 3 in mounted on the back wall condition;
Fig. 5
one too Fig. 4 analog section according to a third embodiment of the invention;
Fig. 6
one too Fig. 4 analog section according to a fourth embodiment of the invention;
Fig. 7
one too Fig. 4 analog section according to a fifth embodiment of the invention;
Fig. 8
a vertical section through the air duct and the cover according to a sixth embodiment of the invention;
Fig. 9
a perspective view of a cover according to a seventh embodiment of the invention;
Fig. 10
one too Fig. 8 analogous view according to an eighth embodiment of the invention; and
Fig. 11
a vertical section through the air duct and the cover according to a ninth embodiment of the invention.

Fig. 1 zeigt eine schematische Ansicht schräg von unten und hinten einen Innenbehälters 1 für ein Haushaltskältegerät gemäß einer ersten Ausgestaltung der Erfindung. Der in an sich bekannter Weise aus thermoplastischem Kunststoff, insbesondere Polystyrol, tiefgezogene Innenbehälter 1 hat im Wesentlichen die Form eines Quaders mit offener, von einem Rahmen 2 umgebener Vorderseite, Seitenwänden 3, einer Decke sowie einer in Fig. 1 dem Betrachter zugewandten Rückwand 4 und einem Boden 5. Im unteren Bereich der Rückwand 4 ist eine Aussparung 6 gebildeter, um Platz zu lassen für eine Maschinenraumnische, die im fertig montierten Kältegerät einen Verdichter sowie evtl. einen Verflüssiger und ein Gebläse zum Kühlen von Verdichter und Verflüssiger aufnimmt. Ein Luftkanal 7 erstreckt sich an der Rückwand 4 über die gesamte Höhe des Innenbehälters einschließlich der Aussparung 6. An seitlichen Flanken 8 des Luftkanals ist in Fig. 1 jeweils ein vorspringender Wulst 9 zu sehen, den im Inneren des Innenbehälters 1 jeweils eine nutartige Hinterschneidung 10 entspricht, wie z.B. in Fig. 2 zu erkennen. Die Hinterschneidung 10 erstreckt sich an beiden Flanken 8 über die gesamte Länge des Luftkanals 7. Fig. 1 shows a schematic view obliquely from below and behind an inner container 1 for a household refrigerator according to a first embodiment of the invention. The molded in a conventional manner of thermoplastic material, especially polystyrene, inner container 1 has substantially the shape of a cuboid with an open, surrounded by a frame 2 front side walls 3, a ceiling and a in Fig. 1 In the lower part of the rear wall 4 is a recess 6 educated to leave room for a machine room niche in the fully assembled refrigeration unit a compressor and possibly a condenser and a fan for cooling compressor and Condenser receives. An air duct 7 extends to the rear wall 4 over the entire height of the inner container including the recess 6. At lateral flanks 8 of the air duct is in Fig. 1 each to see a projecting bead 9, which corresponds in the interior of the inner container 1 each have a groove-like undercut 10, such as in Fig. 2 to recognize. The undercut 10 extends on both flanks 8 over the entire length of the air duct 7.

Benachbart zu einem Abschnitt der Rückwand 4 mit dem darin eingetieften Luftkanal 7 zeigt die Fig. 2 einen Abschnitt einer Abdeckung 11. Eine Grundplatte oder ein Kernbereich 12 der aus Kunststoff spritzgeformten Abdeckung 11 ist vorgesehen, um in dem Luftkanal 7 platziert zu werden, wobei seitliche Ränder 13 des Kernbereichs 12 die Flanken 8 des Luftkanals 7 berühren und von den Rändern 13 in den Luftkanal 7 hinein abstehende elastische Finger 14 in die Hinterschneidungen 10 der Flanken 8 einrasten. Die Finger 14 sind an den Rändern 13 jeweils paarweise in gleicher Höhe angeordnet. Die Abdeckung 11 ist in Maßen elastisch biegsam, so dass während der Anbringung der Abdeckung Fingerpaare 14 an einem Ende der Abdeckung 11 bereits in die Hinterschneidungen 10 eingerastet sein können, Fingerpaare an einem anderen Ende der Abdeckung 11 jedoch noch nicht, und die Fingerpaare sukzessive in die Hinterschneidungen 10 eingerastet werden. Genauso können die Fingerpaare bei einer Demontage der Abdeckung 11 eines nach dem anderen aus den Hinterschneidungen 10 herausgezogen werden. So ist eine schnelle und bequeme Montage und Demontage der Abdeckung 11 bei geringem Kraftaufwand möglich.Adjacent to a portion of the rear wall 4 with the air channel 7 recessed therein, FIG Fig. 2 a portion of a cover 11. A base plate or core portion 12 of the plastic injection molded cover 11 is provided to be placed in the air channel 7, with lateral edges 13 of the core portion 12 contacting the flanks 8 of the air channel 7 and from the edges 13 in FIG Engage the air duct 7 protruding elastic fingers 14 in the undercuts 10 of the flanks 8. The fingers 14 are arranged at the edges 13 in pairs at the same height. The cover 11 is elastically flexible in dimensions, so that during the attachment of the cover finger pairs 14 at one end of the cover 11 may already be engaged in the undercuts 10, finger pairs on another end of the cover 11 but not yet, and the finger pairs successively in the undercuts 10 are engaged. Similarly, the finger pairs can be pulled out at a disassembly of the cover 11 one after the other from the undercuts 10. Thus, a quick and easy assembly and disassembly of the cover 11 is possible with little effort.

Fig. 3 zeigt eine Ansicht eines Abschnitts der Abdeckung 11 gemäß einer zweiten Ausgestaltung der Erfindung. Die Finger 14 sind gegenüber der Ausgestaltung der Fig. 2 geringfügig verlängert, und beiderseits des Kernbereichs 12 erstrecken sich Randstreifen 15, die, wenn die Abdeckung 11 in der in Fig. 4 gezeigten Weise an dem Luftkanal 7 montiert ist, benachbart zum Luftkanal 7 an der Rückwand 4 anliegen, um das Entweichen von Luft aus dem Luftkanal 7 entlang der Ränder der Abdeckung 11 zu verhindern oder wenigstens zu begrenzen. Fig. 3 shows a view of a portion of the cover 11 according to a second embodiment of the invention. The fingers 14 are opposite to the embodiment of Fig. 2 slightly elongated, and on both sides of the core portion 12 extend edge strips 15, which, when the cover 11 in the in Fig. 4 shown manner to the air duct 7 is mounted, adjacent to the air duct 7 on the rear wall 4 to prevent the escape of air from the air duct 7 along the edges of the cover 11 or at least limit.

Die Finger 14 tragen in die Hinterschneidungen 10 eingreifende Rastvorsprünge 16, der Querschnitt zu demjenigen der Hinterschneidungen 10 komplementär ist, um eine exakte Positionierung der Abdeckung 11 zu gewährleisten. Eine den Randstreifen 15 zugewandte Flanke 17 der Rastvorsprünge 16 ist schräg zur Tiefenrichtung des Innenbehälters 1 orientiert, so dass sie, wenn die Abdeckung 11 vom Luftkanal 7 weggezogen wird, einer seitwärts ins Innere des Kanals 7 hinein gerichteten Kraft ausgesetzt ist, die den Finger 14 verbiegt und ein Abziehen der Abdeckung 11 vom Luftkanal 7 möglich macht.The fingers 14 carry in the undercuts 10 engaging locking projections 16, the cross-section to that of the undercuts 10 is complementary to ensure an exact positioning of the cover 11. An edge 15 of the facing edge 17 of the locking projections 16 is oriented obliquely to the depth direction of the inner container 1, so that when the cover 11 is pulled away from the air duct 7, a sideways into the interior of the channel 7 directed force is exposed, the finger 14th bends and makes a removal of the cover 11 from the air duct 7 possible.

Wie in Fig. 5 gezeigt, kann zwischen den Randstreifen 15 und der Rückwand 4 jeweils ein elastisches Dichtband 18 angeordnet sein, das elastisch gestaucht ist und die Flanken des Luftkanals 7 abdichtet, wenn die Finger 14 in den Hinterschneidungen 10 verrastet sind.As in Fig. 5 shown, between the edge strips 15 and the rear wall 4 each have an elastic sealing strip 18 may be arranged, which is elastically compressed and the flanks of the air channel 7 seals when the fingers 14 are locked in the undercuts 10.

Fig. 6 zeigt eine Abwandlung, bei der die Randstreifen 15 der Abdeckung 11 ihrerseits in Vertiefungen 19 der Rückwand 4 beiderseits des Luftkanals 7 aufgenommen sind. Die Vertiefungen 19 können einerseits die Abdichtung an den Flanken des Luftkanals 7 verbessern, indem sie eine scharfe Umlenkung von zwischen den Randstreifen 15 und der Rückwand 4 hindurch entweichender Luft erzwingen und dadurch das Entweichen behindern. Außerdem erlauben sie es, wie in der Ausgestaltung der Fig. 2 die Außenseite der Abdeckung 11 mit der umgebenden Rückwand 4 bündig zu machen und so eine ebene, reinigungsfreundliche Innenoberfläche der Lagerkammer zu schaffen. Fig. 6 shows a modification in which the edge strips 15 of the cover 11 in turn are received in recesses 19 of the rear wall 4 on both sides of the air channel 7. On the one hand, the depressions 19 can improve the sealing on the flanks of the air duct 7 by enforcing a sharp deflection of air escaping between the edge strips 15 and the rear wall 4, thereby hindering the escape. Moreover, they allow, as in the embodiment of Fig. 2 to make the outside of the cover 11 flush with the surrounding rear wall 4 and thus to provide a flat, easy to clean inner surface of the storage chamber.

Bei der Ausgestaltung der Fig. 7 steht von der Innenseite der Abdeckung 11 eine Rippe 20 ab, die sich bis unmittelbar vor eine Rückwand 21 des Luftkanals 7 erstreckt und von diesem einen Nebenkanal 22 abtrennt. Dieser Nebenkanal 22 kann zur Unterbringung eines Kabelbaums 23 dienen, der an verschiedenen Stellen des Innenbehälters 1 angeordnete Temperaturfühler oder einen die Luftzirkulation in dem Luftkanal 7 antreibenden Ventilator mit einer Steuerschaltung, z.B. in der Maschinenraumnische 6, verbindet.In the embodiment of Fig. 7 is from the inside of the cover 11, a rib 20 from which extends until just in front of a rear wall 21 of the air channel 7 and separates from this a side channel 22. This sub-channel 22 can be used to accommodate a cable harness 23, the arranged at different locations of the inner container 1 temperature sensor or the air circulation in the air duct. 7 driving fan with a control circuit, eg in the engine room niche 6 connects.

Luftaustrittsöffnungen 24 können aus dem im Wesentlichen ebenen Kernbereich 12 der Abdeckung 11 ausgestanzt oder auf andere Weise ausgeschnitten sein. Vorzugsweise sind die Austrittsöffnungen 24 als leicht über die Rückwand 4 bzw. den sie umgebenden Kernbereich 12 in den Innenbehälter 1 hinein vorspringende Stutzen ausgebildet, die, wie in dem Schnitt der Fig. 8 gezeigt, an ihrer dem Luftkanal 7 zugewandten Seite abgerundete Bereiche 25 aufweisen, um einen turbulenzarmen, in etwa horizontal ausgerichteten Luftstrom in den Innenbehälter 1 hinein zu entlassen.Air outlet openings 24 may be punched out of the substantially planar core region 12 of the cover 11 or cut out in some other way. Preferably, the outlet openings 24 are formed as slightly over the rear wall 4 and the surrounding core portion 12 in the inner container 1 in projecting nozzle, which, as in the section of Fig. 8 shown on its side facing the air duct 7 side rounded portions 25 have to discharge a low-turbulence, approximately horizontally oriented air flow into the inner container 1 into it.

Wie bereits in Fig. 1 zu erkennen, ist der Luftkanal 7 in mehrere Abschnitte unterteilt, einen stromaufwärtigen Abschnitt 7a und zwei sich um die Aussparung 6 herum ziehende Abschnitte 7b, 7c, von denen der Abschnitt 7b im Wesentlichen horizontal und der Abschnitt 7c vertikal ausgerichtet ist. Um den Luftkanal 7 auf seiner ganzen Länge mit einer durchgehenden Abdeckung 11 abdecken zu können, ist diese Abdeckung 11 gemäß der in Fig. 9 gezeigten Ausgestaltung durch zwei Folienscharniere 26 in jeweils in den Abschnitten 7a, 7b, 7c des Luftkanal entsprechende Abschnitte 11a, 11b, 11c gegliedert. Der mittlere Abschnitt 11b ist in Fig. 9 ohne Finger 14 dargestellt, er könnte jedoch genauso wie die benachbarten Abschnitte 11a, 11c mit Fingern 14 versehen sein. Denkbar wäre auch, am Abschnitt 11b anstelle von Fingern zwei sich über die gesamte Länge des Abschnitts 11b erstreckende Rippen vorzusehen, die keine Rastvorsprünge aufweisen, aber im montierten Zustand an den Flanken 8 des Abschnitts 7b anliegen, um diesen auch dann seitlich abzudichten, wenn aufgrund von Fertigungstoleranzen in den vertikalen Abmessungen der Abschnitte 7a, 7c bzw. 11a, 11c ein enger Kontakt der Randstreifen 15 des Abschnitts 11b mit dem Innenbehälter 1 nicht möglich ist.As already in Fig. 1 1, the air duct 7 is divided into a plurality of sections, an upstream section 7a and two sections 7b, 7c extending around the recess 6, of which section 7b is substantially horizontal and section 7c is vertically aligned. In order to cover the air duct 7 over its entire length with a continuous cover 11, this cover 11 according to the in Fig. 9 shown embodiment by two film hinges 26 in each case in the sections 7a, 7b, 7c of the air duct corresponding sections 11a, 11b, 11c articulated. The middle portion 11b is in Fig. 9 shown without finger 14, but it could be provided with fingers 14 just like the adjacent sections 11a, 11c. It would also be conceivable, instead of fingers, to provide two ribs extending over the entire length of section 11b at section 11b, which have no latching projections, but rest against flanks 8 of section 7b in the assembled state, so as to seal them laterally even when due Manufacturing tolerances in the vertical dimensions of the sections 7a, 7c and 11a, 11c, a close contact of the edge strips 15 of the portion 11b with the inner container 1 is not possible.

Fig. 10 zeigt eine Ausgestaltung der Abdeckung 11, bei der diese in zwei voneinander getrennte Teile 27, 28 gegliedert ist. Das obere Teil 27 umfasst den stromaufwärtigen Abschnitt 11a der Abdeckung 11 sowie eine mit diesem Abschnitt 11a über ein Folienscharnier 26 verbundene, mit zwei Schlitzen 30 versehene Platte 29. Die Platte 29 kommt im montierten Zustand über dem horizontalen Abschnitt 7b des Luftkanals 7 zu liegen. Fig. 10 shows an embodiment of the cover 11, in which this is divided into two separate parts 27, 28. The upper part 27 comprises the upstream portion 11a of the cover 11 and a connected to this portion 11a via a film hinge 26, provided with two slots 30 plate 29. The plate 29 comes in the mounted state above the horizontal portion 7b of the air duct 7 to lie.

Das zweite Teil 28 umfasst den Abschnitt 11c sowie eine Platte 31, die wie die Abschnitte 11a, 11c mit Rastfingern 14 versehen ist. Im montierten Zustand liegt die Platte 31 auf der Platte 29 auf, und ein Paar ihrer Rastfinger 14 durchgreift die Schlitze 30 mit Spiel in deren Längsrichtung, um in die Hinterschneidung 10 des Abschnitts 7b einzurasten. So kann die Länge des von den Platten 29, 31 gebildeten mittleren Abschnitts der Abdeckung 11 an Fertigungstoleranzen des Innenbehälters 1 angepasst werden, so dass in den anderen Abschnitten 11a, 11b die Randstreifen 15 auf ihrer ganzen Länge in Kontakt mit dem Innenbehälter 1 sein können.The second part 28 comprises the section 11c and a plate 31 which, like the sections 11a, 11c, is provided with latching fingers 14. In the assembled state, the plate 31 rests on the plate 29, and a pair of their locking fingers 14 passes through the slots 30 with play in the longitudinal direction thereof to engage in the undercut 10 of the portion 7b. Thus, the length of the central portion of the cover 11 formed by the plates 29, 31 can be adapted to manufacturing tolerances of the inner container 1, so that in the other portions 11a, 11b the edge strips 15 can be in contact with the inner container 1 over their entire length.

Fig. 11 zeigt einen vertikalen Schnitt durch den Grenzbereich der Abschnitte 7a, 7b des Luftkanals 7 bzw. 11a, 11b der Abdeckung 11 gemäß einer neunten Ausgestaltung der Erfindung. Anstelle eines einzigen Folienscharniers 26 ist hier eine Mehrzahl von jeweils untereinander bzw. mit den Abschnitten 11a, 11b über Folienscharniere verbundener Segmente 32 vorgesehen, die die Abdeckung 11 zwischen den Abschnitten 11a, 11b auf einer Länge von mehreren cm hochflexibel machen. So kann die Abdeckung sich auch an einem abgerundeten Übergangsbereich 33 zwischen vertikalen und horizontalen Bereichen der Rückwand 4 eng und dicht anschmiegen. Fig. 11 shows a vertical section through the boundary region of the portions 7a, 7b of the air duct 7 and 11a, 11b of the cover 11 according to a ninth embodiment of the invention. Instead of a single film hinge 26 here is a plurality of each other or with the sections 11a, 11b connected via film hinges segments 32 which make the cover 11 between the sections 11a, 11b on a length of several cm highly flexible. Thus, the cover can also closely and tightly nestle against a rounded transition region 33 between vertical and horizontal regions of the rear wall 4.

Ein entsprechender von mehreren Segmenten 32 gebildeter hochflexibler Abschnitt kann auch am Übergang zwischen den Abschnitten 7b, 7c bzw. 11b, 11c vorgesehen sein. Indem der von den Segmenten 32 gebildete flexible Abschnitt jeweils länger ist als zum Überbrücken des abgerundeten Übergangsbereichs 33 zwischen den Kanalabschnitten 7a, 7b bzw. 7b, 7c erforderlich, wird außerdem die Möglichkeit geschaffen, die Abdeckung auf ihrer ganzen Länge, über die Grenzen der Kanalabschnitte 7a, 7b, 7c hinweg zu verschieben und so Abmessungstoleranzen des Innenbehälters auszugleichen.A correspondingly highly flexible section formed by a plurality of segments 32 can also be provided at the transition between sections 7b, 7c or 11b, 11c. In addition, by requiring the flexible portion formed by the segments 32 to be longer than bridging the rounded transition region 33 between the channel sections 7a, 7b and 7b, 7c, it is possible to extend the cover over its entire length beyond the boundaries of the channel sections 7a, 7b, 7c to move away and so compensate for dimensional tolerances of the inner container.

Claims (12)

  1. Refrigeration appliance, in particular household refrigeration application, with a deep-drawn inner container (1) delimiting a storage chamber, an air duct (7) shaped in a wall (4) of the inner container (1) and a covering (11) isolating the air duct (7) from the storage container, wherein the air duct (7) has indentations (10) on lateral flanks (8), into which the covering (11) engages, characterised in that the covering (11) has fingers (14) which are spaced apart from one another at their borders in their longitudinal direction, are arranged in pairs at the same height and engage into the indentations (10) and the covering (11) is resiliently flexible, in order to enable a successive latching of the pairs of fingers (14) into the indentations (10).
  2. Refrigeration appliance according to claim 1, characterised in that the indentation (10) is formed on lateral flanks (8) of the air duct (7) which lie opposite one another.
  3. Refrigeration appliance according to claim 1 or 2, characterised in that the indentation (10) extends along the entire length of the air duct (7).
  4. Refrigeration appliance according to one of the preceding claims, characterised in that the fingers (14) have a cross-section which is complementary to the indentation (10).
  5. Refrigeration appliance according to one of the preceding claims, characterised in that a base plate of the covering (11) has edge strips (15) which abut against the wall (4) of the inner container (1) on both sides of a core region (12) spanning the air duct (7).
  6. Refrigeration appliance according to claim 5, characterised in that the edge strips (15) are accommodated in the recesses (19) in the wall (4) flanking the air duct (7).
  7. Refrigeration appliance according to one of the preceding claims, characterised in that the covering (11) has air outlet openings (24).
  8. Refrigeration appliance according to claim 7, characterised in that the air outlet openings (24) have edges (25) with a rounded cross-section on their side facing towards the air duct (7).
  9. Refrigeration appliance according to one of the preceding claims, characterised in that the covering (11) carries a rib (20) which divides the air duct (7) lengthwise.
  10. Refrigeration appliance according to one of the preceding claims, characterised in that the air duct (7) comprises at least two sections (7a, 7c) which are offset from one another in the depth direction of the inner container (1).
  11. Refrigeration appliance according to one of the preceding claims, characterised in that the covering (11) is divided by at least one hinge (26) into consecutive sections (7a, 7b, 7c; 32) in its longitudinal direction.
  12. Refrigeration appliance according to claim 11, characterised in that the hinge (26) is a living hinge.
EP12710683.9A 2011-03-28 2012-03-16 Refrigerator having an integrally formed air channel Active EP2691712B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011006256A DE102011006256A1 (en) 2011-03-28 2011-03-28 Refrigerating appliance with molded air duct
PCT/EP2012/054653 WO2012130637A2 (en) 2011-03-28 2012-03-16 Refrigerator having an integrally formed air channel

Publications (2)

Publication Number Publication Date
EP2691712A2 EP2691712A2 (en) 2014-02-05
EP2691712B1 true EP2691712B1 (en) 2019-08-21

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Application Number Title Priority Date Filing Date
EP12710683.9A Active EP2691712B1 (en) 2011-03-28 2012-03-16 Refrigerator having an integrally formed air channel

Country Status (4)

Country Link
EP (1) EP2691712B1 (en)
CN (1) CN103477167B (en)
DE (1) DE102011006256A1 (en)
WO (1) WO2012130637A2 (en)

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DE102013213378A1 (en) * 2013-07-09 2015-01-15 BSH Bosch und Siemens Hausgeräte GmbH Refrigerating appliance with an air duct
CN103822422B (en) * 2014-03-17 2016-02-24 合肥华凌股份有限公司 Refrigerator
EP3109579B1 (en) * 2015-06-26 2019-03-13 BSH Hausgeräte GmbH Refrigeration device with a pressure sensor
DE102015215487A1 (en) 2015-06-26 2016-12-29 BSH Hausgeräte GmbH Refrigeration unit with pressure sensor
DE102016224610A1 (en) * 2016-12-09 2018-06-14 BSH Hausgeräte GmbH Domestic refrigerator with specific attachment of a cover plate to a receiving space for food and method for mounting such a cover plate
CH713416A2 (en) * 2018-06-06 2018-08-15 V Zug Ag Refrigerator with mounting mechanism for a component in the work space.
ES2740818B2 (en) * 2018-08-06 2021-01-20 Bsh Electrodomesticos Espana Sa Domestic refrigerator appliance with an internal channel for the distribution of cooled air
DE102019216588A1 (en) * 2019-10-29 2021-04-29 BSH Hausgeräte GmbH Refrigeration device and refrigerator and / or freezer
CN112696860A (en) * 2020-12-18 2021-04-23 合肥朗驰工业设计有限公司 Refrigerator freezing return air duct and defrosting control method thereof

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JP3338218B2 (en) * 1994-11-28 2002-10-28 三洋電機株式会社 Freezer refrigerator
JP2002130936A (en) * 2000-10-20 2002-05-09 Fujitsu General Ltd Refrigerator
JP2002295948A (en) * 2001-03-30 2002-10-09 Fujitsu General Ltd Electric refrigerator
JP4620663B2 (en) * 2003-07-04 2011-01-26 エレクトロラックス ホーム プロダクツ コーポレイション ナームロゼ フェンノートシャップ Cabinet refrigeration system
DE102005021609A1 (en) * 2005-05-10 2006-11-23 BSH Bosch und Siemens Hausgeräte GmbH Refrigeration appliance body with air duct

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Also Published As

Publication number Publication date
DE102011006256A1 (en) 2012-10-04
WO2012130637A2 (en) 2012-10-04
WO2012130637A3 (en) 2013-05-02
CN103477167A (en) 2013-12-25
EP2691712A2 (en) 2014-02-05
CN103477167B (en) 2016-01-20

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