EP2467659B1 - Refrigerator having a metal front strip - Google Patents

Refrigerator having a metal front strip Download PDF

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Publication number
EP2467659B1
EP2467659B1 EP10744919.1A EP10744919A EP2467659B1 EP 2467659 B1 EP2467659 B1 EP 2467659B1 EP 10744919 A EP10744919 A EP 10744919A EP 2467659 B1 EP2467659 B1 EP 2467659B1
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EP
European Patent Office
Prior art keywords
groove
inner container
refrigerator
segment
edge
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EP10744919.1A
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German (de)
French (fr)
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EP2467659A2 (en
Inventor
Karl-Friedrich Laible
Helmut Steichele
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Priority to PL10744919T priority Critical patent/PL2467659T3/en
Publication of EP2467659A2 publication Critical patent/EP2467659A2/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
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/062—Walls defining a cabinet
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate

Definitions

  • the present invention relates to a refrigerator, in particular a household refrigerator such as a refrigerator, a freezer, a combination refrigerator or the like, with a body.
  • such a refrigeration unit body comprises a plastic container integrally deep-drawn inner container, attached to the inner container, assembled from a plurality of plate-like elements outer shell and an insulating layer which fills a gap between the inner container and the outer shell.
  • the outer shell of such a body comprises a metallic end strip, on which a groove forming an edge of the inner container is formed.
  • the groove is generally slightly narrower, as it corresponds to the material thickness of the inserted therein edge of the inner container, so that the groove spread apart by the inserted edge of the inner container and this is clamped.
  • An insertion bevel on the groove facilitates the insertion of the edge of the inner container in the groove.
  • Fig. 1 illustrates this construction by means of a section through the front portion of a partition wall 1 between a normal refrigeration compartment 2 and a freezer compartment 3 of a conventional combination refrigerator.
  • a metallic end strip 4 closes the partition 1 from the front.
  • the front strip 4 here has two upwardly or downwardly open grooves 5, 6, each receiving and pinching an edge 7 of an inner container 8 of the normal refrigeration compartment 2 and an inner container 9 of the freezer compartment. Both grooves 5, 6 have on their side facing away from the doors, the rear side wall an insertion bevel 10, which dips into the partition wall 1 between the inner containers 8, 9 filling insulating material 11.
  • the front strip 4 absorbs heat from the environment via its exposed front.
  • US 4,862,577 A and JP S 5364364 U each disclose a refrigeration device, in which an inner edge of an inner container is received in a groove of an outer wall, and thus correspond to the preamble of claim 1.
  • Object of the present invention with simple constructive measures, in particular with minimal effort on material and work the insulation effect to improve a refrigerator body.
  • the object is solved by features of the independent claim, wherein in a refrigerator body with an inner container, an outer shell and an enclosed between the inner container and the outer shell insulating layer, wherein the outer shell comprises at least one metallic end strip, at one edge of the Inner container receiving, limited by a chamfer groove is formed, the groove is divided in its longitudinal direction in at least a first and a second portion, wherein the width of the insertion be less in the second section than in the first section.
  • the assembly of the refrigeration unit body is not appreciably hampered, since it is sufficient for insertion of the edge of the inner container in the groove when the groove initially spread only on the first section and the edge can be inserted into it, because with progressive penetration of the edge in the groove is also spread in the second section.
  • the inner container is preferably in the form of a box open on one side and produced by deep-drawing a plastic sheet with a frame surrounding the open side and walls of the inner box adjacent to this open side, and an outer edge of the frame engages the groove of the header.
  • the width of the insertion be in the second section of the groove should be at most half as large as in the first section. It is preferred that the width of the insertion bevel is reduced to zero in the second section of the groove.
  • the first sections are formed like a tab.
  • such a first portion is provided at both ends of the groove, so that the insertion of the edge of the inner container at each end of the groove can be started.
  • the front strip and the edge of the inner container initially form an acute angle at the beginning of insertion and are only rotated with progressive penetration of the edge into the groove in its final, mutually parallel position.
  • the two first sections preferably delimit a same, central second section, that is to say that there is no or at most a reduced insertion bevel between these two first sections.
  • first and second sections alternate in the longitudinal direction of the groove in a comb or saw-like arrangement. This facilitates pushing the end strip in a direction parallel to the edge of the inner container orientation.
  • the total extent of all second sections in the longitudinal direction of the groove is greater than that of the first sections. It is particularly advantageous if the central second section is longer in the longitudinal direction of the groove than a flat wall of the inner container lying opposite it. As a result, the first sections at the ends of the groove do not intersect in the longitudinal direction with the inner container or at most intersect with rounded edge regions of the inner container. Thus, the distance between one end of the insertion bevel and the inner container is always greater than if such a first portion were arranged in a central region of the groove which overlaps with the opposite planar wall.
  • a frame heater may be arranged in the groove.
  • the inclination of the front strip is reduced for dewing, it may be sufficient if the acted upon with compressed refrigerant heating tube is connected downstream of a condenser in a refrigerant circuit.
  • end strip 14 is bent in a conventional manner from a continuous sheet-metal strip and cut into pieces of the required length.
  • the sheet-metal strip is on both sides of an exposed at the front of a finished refrigerator body center strip 15 to form two upwardly and downwardly open grooves 5, 6 bent back on itself.
  • a hollow bead 16 is formed for stiffening.
  • a rear side wall 18 of the grooves 5, 6 is, as in particular in the section of Fig.
  • edge of the inner container is inserted in an orientation parallel to the groove 5, 6 in the groove 5, 6, there is the possibility of a blockage when a central region of the edge in front of the cutting edge 22 of the section 20 abuts. In general, therefore, one will insert the edge slightly inclined into the groove, so that it first comes into contact with the local tab 19 at one end of the groove and there, the side walls 17, 18 spread apart. To the extent that the edge is pushed further into the groove, the spread propagates along the groove also along the portion 20, so that the edge can engage in its full length in the groove.
  • Fig. 4 change numerous tabs 19 and cut portions 20 along the grooves 5, 6 from each other.
  • the sections 20 are here short enough so that the side walls 17, 18 are spread apart along the entire length of a section 20 when the edge bends the two tabs 19 adjacent to this section.
  • a disadvantage of this embodiment is that the tabs 19 engage in the center of the end strip 14 as far into the insulating material layer of the refrigerator body as the conventional continuous insertion bevels 10 of Fig. 1 ,
  • the heat input is in a cooling compartment of the body compared to the case of Fig.1 significantly reduced.
  • tabs 19 in the middle of the end strip 14 may be shorter than the tabs 19 at the ends of the front strip 14th
  • Fig. 5 Another measure for reducing the incidence of heat is in Fig. 5
  • the tabs 19 are tapered toward their free end, similar to the teeth of a saw, to reduce the cross-sectional area on which heat can penetrate into the insulating material layer.
  • Fig. 6 shows a view from the rear of inner containers 8, 9 of a normal refrigeration compartment and a freezer compartment of a refrigerator body and provided for mounting on these inner containers 8, 9 end strips 14, 23, 24, 25 from in Fig. 2 shown type.
  • the end strips form familiar in the art familiar parts of a solid outer skin of the refrigerator body, and the end strips 23, 24, 25 may be integrally formed with ceiling, side wall or bottom elements of the outer skin or not shown here arrangements for attachment of such wall elements.
  • each rear walls and frames 26 can be seen, which protrude at right angles to an open front of the inner container 8, 9 of leading edges of the side walls, the ceiling or the bottom of the inner container.
  • a front strip 14 from in Fig. 2 or 3 shown type shown. It can be seen here that the central section 20 of both grooves of the end strip 14, which is free of insertion bevels, is wider than the bottom 27 of the inner container 8 or the cover 28 of the inner container 9, which lie directly opposite these two grooves.
  • the tabs 19 of the end strip 14 therefore overlap with respect to the width direction of the body partially with rounding zones 29 of the inner compartment cooling container 8, which connect the bottom 27 with side walls 30.
  • the tabs overlap neither with the blanket 28 nor the adjacent rounding zones 29, but are located entirely beyond the side walls 31.
  • the tips of the tabs 19 are always from the inner container 8 and 9, respectively a thicker layer of insulating material separated as if they were in a central region of the end strip 14 of the bottom 27 and the ceiling 28 directly opposite.
  • two grooves 32, 33 are formed one above the other, one of which surrounds a lateral edge of the frame 26 of the inner container 8 and the other a corresponding edge of the inner container 9. Again, serving as insertion bevels tabs 19 are each arranged at the level of the rounding zones 29.
  • a gap 34 between the two grooves 32, 33 serves to attach a laterally projecting tongue 35 of the end strip 14.
  • the front strips 23, 24 have such tongues 35, which for attachment to each above and below the grooves 32, 33 projecting end pieces 36 of the vertical end strips 25 are provided.
  • the edges 26 of the inner container 8, 9 can, as in Fig. 1 shown to be provided with a circumferential groove which receives a heating tube 37 of a frame heater. Because the End strips 14, 23, 24, 25 are cooled only relatively weak due to their shape and arrangement described above, a low performance of the frame heater is sufficient to prevent Betauen lying exposed surfaces of the end strips.
  • the heating tube 37 through which compressed refrigerant flows can therefore be arranged downstream of a condenser in a refrigerant circuit of the refrigeration device, which emits in a manner known per se the predominant part of the waste heat of the device to the environment.

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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)
  • Refrigerator Housings (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Description

Die vorliegende Erfindung betrifft ein Kältegerät, insbesondere ein Haushaltskältegerät wie etwa ein Kühlschrank, ein Gefrierschrank, ein Kombinations-Kältegerät oder dergleichen, mit einem Korpus.The present invention relates to a refrigerator, in particular a household refrigerator such as a refrigerator, a freezer, a combination refrigerator or the like, with a body.

Herkömmlicherweise umfasst ein solcher Kältegerätekorpus einen aus Kunststoff einteilig tiefgezogenen Innenbehälter, eine an den Innenbehälter angefügte, aus mehreren plattenartigen Elementen zusammengefügte äußere Hülle und eine Isolationsschicht, die einen Zwischenraum zwischen dem Innenbehälter und der äußeren Hülle ausfüllt. Zur Verbindung mit dem Innenbehälter umfasst die äußere Hülle eines solchen Korpus eine metallische Stirnleiste, an der eine einen Rand des Innenbehälters aufnehmende Nut gebildet ist. Um einen festen Zusammenhalt von Innenbehälter und Stirnleiste bereits vor dem vollständigen Zusammenbau der äußeren Hülle zu gewährleisten, ist die Nut im Allgemeinen geringfügig schmaler, als es der Materialstärke des darin einzuführenden Randes des Innenbehälters entspricht, so dass die Nut durch den eingesteckten Rand des Innenbehälters aufgespreizt wird und diesen festklemmt. Eine Einführschräge an der Nut erleichtert das Einschieben des Randes des Innenbehälters in die Nut.Conventionally, such a refrigeration unit body comprises a plastic container integrally deep-drawn inner container, attached to the inner container, assembled from a plurality of plate-like elements outer shell and an insulating layer which fills a gap between the inner container and the outer shell. For connection to the inner container, the outer shell of such a body comprises a metallic end strip, on which a groove forming an edge of the inner container is formed. In order to ensure a firm cohesion of inner container and end strip before the complete assembly of the outer shell, the groove is generally slightly narrower, as it corresponds to the material thickness of the inserted therein edge of the inner container, so that the groove spread apart by the inserted edge of the inner container and this is clamped. An insertion bevel on the groove facilitates the insertion of the edge of the inner container in the groove.

Fig. 1 verdeutlicht diese Konstruktion anhand eines Schnittes durch den vorderen Bereich einer Trennwand 1 zwischen einem Normalkühlfach 2 und einem Gefrierfach 3 eines herkömmlichen Kombinations-Kältegeräts. Eine metallische Stirnleiste 4 schließt die Trennwand 1 nach vorn ab. An ihr haften Magnetdichtungen von die Fächer 2, 3 abschließenden Türen. Die Stirnleiste 4 hat hier zwei nach oben bzw. unten offene Nuten 5, 6, die jeweils einen Rand 7 eines Innenbehälters 8 des Normalkühlfachs 2 bzw. eines Innenbehälters 9 des Gefrierfachs aufnehmen und einklemmen. Beide Nuten 5, 6 weisen an ihrer von den Türen abgewandten, rückwärtigen Seitenwand eine Einführschräge 10 auf, die in das die Trennwand 1 zwischen den Innenbehältern 8, 9 ausfüllende Isolationsmaterial 11 eintaucht. Die Stirnleiste 4 nimmt Wärme aus der Umgebung über ihre frei liegende Vorderseite auf. Weitere Wärme rührt von einem Leitungsrohr 12 einer Rahmenheizung her, das sich in der Nut 6 erstreckt. Diese Wärme wird über das gut Wärme leitende Metall der Stirnleiste 4 tief in das Isolationsmaterial 11 hinein transportiert. Der Abstand zwischen den Spitzen der Einführschrägen 10 und dem Boden des Innenbehälters 8 bzw. der Decke des Innenbehälters 9 ist gering, so dass diese Wärme schnell in die Fächer 2, 3 gelangt. Fig. 1 illustrates this construction by means of a section through the front portion of a partition wall 1 between a normal refrigeration compartment 2 and a freezer compartment 3 of a conventional combination refrigerator. A metallic end strip 4 closes the partition 1 from the front. At her stick magnetic seals of the compartments 2, 3 final doors. The front strip 4 here has two upwardly or downwardly open grooves 5, 6, each receiving and pinching an edge 7 of an inner container 8 of the normal refrigeration compartment 2 and an inner container 9 of the freezer compartment. Both grooves 5, 6 have on their side facing away from the doors, the rear side wall an insertion bevel 10, which dips into the partition wall 1 between the inner containers 8, 9 filling insulating material 11. The front strip 4 absorbs heat from the environment via its exposed front. Further heat comes from a conduit 12 of a frame heater ago, which extends in the groove 6. This heat is transported deep into the insulating material 11 via the highly heat-conducting metal of the end strip 4. The distance between the tips of the chamfers 10 and the ground the inner container 8 or the ceiling of the inner container 9 is low, so that this heat quickly enters the compartments 2, 3.

US 4 862 577 A und JP S 5364364 U offenbaren jeweils ein Kältegerät, bei dem eine innere Flanke eines Innenbehälters in einer Nut einer Außenwandung aufgenommen ist, und entsprechen somit dem Oberbegriff des Anspruchs 1. Aufgabe der vorliegenden Erfindung ist, mit einfachen konstruktiven Maßnahmen, insbesondere mit minimalem Aufwand an Material und Arbeit die Isolationswirkung eines Kältegerätekorpus zu verbessern. US 4,862,577 A and JP S 5364364 U each disclose a refrigeration device, in which an inner edge of an inner container is received in a groove of an outer wall, and thus correspond to the preamble of claim 1. Object of the present invention, with simple constructive measures, in particular with minimal effort on material and work the insulation effect to improve a refrigerator body.

Die Aufgabe wird durch Merkmale des unabhängigen Anspruchs gelöst, wobei bei einem Kältegerätekorpus mit einem Innenbehälter, einer äußeren Hülle und einer zwischen dem Innenbehälter und der äußeren Hülle eingeschlossenen Isolationsschicht, bei dem die äußere Hülle wenigstens eine metallische Stirnleiste umfasst, an der eine einen Rand des Innenbehälters aufnehmende, von einer Einführschräge begrenzte Nut gebildet ist, die Nut in ihrer Längsrichtung in wenigstens einen ersten und einen zweiten Abschnitt gegliedert ist, wobei die Breite der Einführschräge im zweiten Abschnitt geringer ist als im ersten Abschnitt. Indem somit wenigstens in dem zweiten Abschnitt die Eindringtiefe der Einführschräge in die Isolationsschicht verringert ist, vergrößert sich die wirksame Dicke der Isolationsschicht zwischen der Einführschräge und dem benachbarten Innenbehälter, und der Wärmeeintrag in den Innenbehälter über das Metall der Stirnleiste nimmt ab. Der Zusammenbau des Kältegerätekorpus ist dadurch nicht nennenswert erschwert, da es zum Einführen des Randes des Innenbehälters in die Nut genügt, wenn die Nut zunächst nur auf dem ersten Abschnitt aufgespreizt und der Rand dort in sie eingeschoben werden kann, denn mit fortschreitendem Eindringen des Randes in die Nut wird diese auch im zweiten Abschnitt aufgespreizt.The object is solved by features of the independent claim, wherein in a refrigerator body with an inner container, an outer shell and an enclosed between the inner container and the outer shell insulating layer, wherein the outer shell comprises at least one metallic end strip, at one edge of the Inner container receiving, limited by a chamfer groove is formed, the groove is divided in its longitudinal direction in at least a first and a second portion, wherein the width of the insertion be less in the second section than in the first section. By thus reducing the penetration depth of the insertion bevel into the insulation layer at least in the second section, the effective thickness of the insulation layer between the insertion slope and the adjacent inner container increases, and the heat input into the inner container via the metal of the end strip decreases. The assembly of the refrigeration unit body is not appreciably hampered, since it is sufficient for insertion of the edge of the inner container in the groove when the groove initially spread only on the first section and the edge can be inserted into it, because with progressive penetration of the edge in the groove is also spread in the second section.

Der Innenbehälter hat vorzugsweise die Form eines einseitig offenen, durch Tiefziehen einer Kunststoffplatine erzeugten Kastens mit einem die offene Seite umgebenden, von an diese offene Seite angrenzenden Wänden des Innenbehälters abstehenden Rahmen, und ein äußerer Rand des Rahmens greift in die Nut der Stirnleiste ein.The inner container is preferably in the form of a box open on one side and produced by deep-drawing a plastic sheet with a frame surrounding the open side and walls of the inner box adjacent to this open side, and an outer edge of the frame engages the groove of the header.

Um eine deutliche Wirkung auf das Isolationsvermögen des Kältegerätekorpus zu haben, sollte die Breite der Einführschräge im zweiten Abschnitt der Nut höchstens halb so groß wie im ersten Abschnitt sein. Bevorzugt ist, dass die Breite der Einführschräge im zweiten Abschnitt der Nut auf Null reduziert ist.In order to have a clear effect on the insulation capacity of the refrigerator body, the width of the insertion be in the second section of the groove should be at most half as large as in the first section. It is preferred that the width of the insertion bevel is reduced to zero in the second section of the groove.

Insbesondere in letzterem Falle ist es zweckmäßig, wenn an eine ebene Einführschräge ein gleichmäßig gewölbter, in die Nut hinein vorspringender Wandabschnitt der Stirnleiste anschließt. Indem sich dieser gewölbte Wandabschnitt über die gesamte Länge der Nut erstreckt, wird beim Einschieben des Innenbehälters ein Kontakt mit einer scharfen Kante des die Stirnleiste bildenden Blechs vermieden, an der Material des Innenbehälters abgeschabt und dadurch das Einführen erschwert werden könnte.Especially in the latter case, it is expedient if a uniformly curved, projecting into the groove wall portion of the front strip connects to a flat insertion bevel. By extending this curved wall portion over the entire length of the groove, contact with a sharp edge of the end strip forming sheet is avoided during insertion of the inner container, scraped on the material of the inner container and thus the introduction could be difficult.

Bevorzugt sind die ersten Abschnitte laschenähnlich ausgebildet.Preferably, the first sections are formed like a tab.

Erfindungsgemäß ist ein solcher erster Abschnitt an beiden Enden der Nut vorgesehen, so dass mit dem Einführen des Randes des Innenbehälters an jedem Ende der Nut begonnen werden kann. Dabei bilden die Stirnleiste und der Rand des Innenbehälters zu Beginn des Einführens zunächst einen spitzen Winkel und werden erst mit fortschreitendem Eindringen des Randes in die Nut in ihre endgültige, zueinander parallele Stellung gedreht.According to the invention, such a first portion is provided at both ends of the groove, so that the insertion of the edge of the inner container at each end of the groove can be started. In this case, the front strip and the edge of the inner container initially form an acute angle at the beginning of insertion and are only rotated with progressive penetration of the edge into the groove in its final, mutually parallel position.

Vorzugsweise begrenzen die beiden ersten Abschnitte einen gleichen, zentralen zweiten Abschnitt, das heißt zwischen diesen beiden ersten Abschnitten ist keine oder allenfalls eine in ihrer Breite reduzierte Einführschräge vorhanden.The two first sections preferably delimit a same, central second section, that is to say that there is no or at most a reduced insertion bevel between these two first sections.

Denkbar ist aber auch, dass mehrere erste und zweite Abschnitte einander in Längsrichtung der Nut in einer kamm- oder sägeartigen Anordnung abwechseln. Dies erleichtert ein Aufschieben der Stirnleiste in einer zum Rand des Innenbehälters parallelen Orientierung.It is also conceivable that a plurality of first and second sections alternate in the longitudinal direction of the groove in a comb or saw-like arrangement. This facilitates pushing the end strip in a direction parallel to the edge of the inner container orientation.

Um den Wärmeeintrag über die ersten Abschnitte möglichst gering zu halten, sollte deren Anteil an der Länge der Nut nicht größer sein als notwendig. Erfindungsgemäß ist die gesamte Ausdehnung aller zweiten Abschnitte in Längsrichtung der Nut größer als die der ersten Abschnitte. Besonders vorteilhaft ist, wenn der zentrale zweite Abschnitt in Längsrichtung der Nut länger ist als eine ihm gegenüberliegende ebene Wand des Innenbehälters. Dies führt dazu, dass die ersten Abschnitte an den Enden der Nut sich in deren Längsrichtung mit dem Innenbehälter gar nicht oder allenfalls mit abgerundeten Randbereichen des Innenbehälters überschneiden. So ist der Abstand zwischen einem Ende der Einführschräge und dem Innenbehälter stets größer, als wenn ein solcher erster Abschnitt in einem zentralen Bereich der Nut angeordnet wäre, der mit der gegenüberliegenden ebenen Wand überlappt.In order to keep the heat input over the first sections as small as possible, their share of the length of the groove should not be greater than necessary. According to the invention, the total extent of all second sections in the longitudinal direction of the groove is greater than that of the first sections. It is particularly advantageous if the central second section is longer in the longitudinal direction of the groove than a flat wall of the inner container lying opposite it. As a result, the first sections at the ends of the groove do not intersect in the longitudinal direction with the inner container or at most intersect with rounded edge regions of the inner container. Thus, the distance between one end of the insertion bevel and the inner container is always greater than if such a first portion were arranged in a central region of the groove which overlaps with the opposite planar wall.

Um ein Betauen der Stirnseite an einer frei liegenden Fläche zu vermeiden, kann eine Rahmenheizung in der Nut angeordnet sein. Hierfür kann zweckmäßigerweise in dem in der Nut aufgenommenen Rand des Rahmens eine Rille geformt sein, die ein Heizrohr der Rahmenheizung aufnimmt.In order to avoid sodding of the end face on an exposed surface, a frame heater may be arranged in the groove. For this purpose, it may be expedient to form a groove in the edge of the frame accommodated in the groove, which groove receives a heating tube of the frame heater.

Da infolge der verbesserten Isolation gegenüber dem Innenbehälter die Neigung der Stirnleiste zum Betauen reduziert ist, kann es ausreichen, wenn das mit verdichtetem Kältemittel beaufschlagte Heizrohr in einem Kältemittelkreislauf einem Verflüssiger nachgeschaltet ist.As a result of the improved insulation with respect to the inner container, the inclination of the front strip is reduced for dewing, it may be sufficient if the acted upon with compressed refrigerant heating tube is connected downstream of a condenser in a refrigerant circuit.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen unter Bezugnahme auf die beigefügten Figuren. Es zeigen:

Fig. 1
bereits behandelt, einen Schnitt durch einen vorderen Bereich einer Trennwand zwischen zwei Fächern eines herkömmlichen Kombinations-Haushaltskältegeräts;
Fig. 2
eine perspektivische Ansicht einer erfindungsgemäßen Stirnleiste;
Fig. 3
einen vergrößerten Schnitt durch die Stirnleiste der Fig. 2;
Fig. 4
eine zu Fig. 2 analoge Ansicht einer Stirnleiste gemäß einer zweiten Ausgestaltung der Erfindung;
Fig. 5
eine zu Fig. 2 analoge Ansicht gemäß einer dritten Ausgestaltung; und
Fig. 6
eine auseinander gezogene Rückansicht von Teilen eines erfindungsgemäßen Kältegerätekorpus.
Further features and advantages of the invention will become apparent from the following description of embodiments with reference to the accompanying figures. Show it:
Fig. 1
already discussed, a section through a front portion of a partition wall between two compartments of a conventional combination household refrigerator;
Fig. 2
a perspective view of a front strip according to the invention;
Fig. 3
an enlarged section through the front strip of Fig. 2 ;
Fig. 4
one too Fig. 2 analogous view of a front strip according to a second embodiment of the invention;
Fig. 5
one too Fig. 2 analogous view according to a third embodiment; and
Fig. 6
an exploded rear view of parts of a refrigeration appliance body according to the invention.

Die in Fig. 2 in einer perspektivischen Ansicht gezeigte Stirnleiste 14 gemäß der vorliegenden Erfindung ist in an sich bekannter Weise aus einem kontinuierlichen Blechband gebogen und in Stücke der jeweils benötigten Länge geschnitten. Das Blechband ist beiderseits eines an der Vorderseite eines fertigen Kältegerätekorpus frei liegenden Mittelstreifens 15 unter Ausbildung von zwei nach oben und unten offenen Nuten 5, 6 auf sich selbst zurück gebogen. Im Übergangsbereich zwischen dem Mittelstreifen 15 und einer daran angrenzenden vorderen Seitenwand 17 der Nut 5 bzw. 6 ist zur Versteifung ein hohler Wulst 16 ausgebildet. Eine rückwärtige Seitenwand 18 der Nuten 5, 6 ist, wie insbesondere in dem Schnitt der Fig. 3 zu erkennen, geringfügig schräg zur äußeren Seitenwand 17 orientiert, so dass die Nuten 5, 6 von einer schmalsten Stelle, die in etwa dem Wulst 16 gegenüber liegt, nach innen an Breite zunehmen. Eine Einführschräge an der rückwärtigen Seitenwand 18 ist reduziert auf zwei ebene Laschen 19 unmittelbar an den beiden Enden der Stirnleiste 14. In einem mittleren Abschnitt 20 der Stirnleiste 14 ist die Einführschräge komplett weggeschnitten; lediglich eine schmale Rundungszone 21, die einen kontinuierlichen Übergang zwischen der inneren Seitenwand 18 und den Laschen 19 bildet, zieht sich über die gesamte Länge der Stirnleiste 14, so dass eine beim Wegschneiden des mittleren Abschnitts 20 entstandene scharfe Schnittkante 22 nicht in Kontakt mit einem in die Nut 5, 6 einzuschiebenden Rand eines Innenbehälters kommen, in diesen einschneiden und dadurch das Einschieben des Randes in die Nut erschweren kann.In the Fig. 2 in a perspective view shown end strip 14 according to the present invention is bent in a conventional manner from a continuous sheet-metal strip and cut into pieces of the required length. The sheet-metal strip is on both sides of an exposed at the front of a finished refrigerator body center strip 15 to form two upwardly and downwardly open grooves 5, 6 bent back on itself. In the transition region between the center strip 15 and an adjacent front side wall 17 of the groove 5 and 6, a hollow bead 16 is formed for stiffening. A rear side wall 18 of the grooves 5, 6 is, as in particular in the section of Fig. 3 to be slightly obliquely oriented to the outer side wall 17, so that the grooves 5, 6 increase in width from a narrowest point which is approximately opposite the bead 16, inwardly. An insertion bevel on the rear side wall 18 is reduced to two flat tabs 19 directly at the two ends of the end strip 14. In a central portion 20 of the end strip 14, the lead-in is completely cut away; only a narrow rounding zone 21, which forms a continuous transition between the inner side wall 18 and the tabs 19, extends over the entire length of the end strip 14, so that a sharp cutting edge 22 formed when cutting away the middle section 20 is not in contact with a in the groove 5, 6 come to be inserted edge of an inner container, cut into it and thereby complicate the insertion of the edge into the groove.

Wenn der Rand des Innenbehälters in einer zur Nut 5, 6 parallelen Orientierung in die Nut 5, 6 eingeschoben wird, besteht die Möglichkeit einer Blockade, wenn ein mittlerer Bereich des Randes vor die Schnittkante 22 des Abschnitts 20 stößt. In der Regel wird man daher den Rand leicht schräggestellt in die Nut einschieben, so dass er zunächst an einem Ende der Nut mit der dortigen Lasche 19 in Kontakt gerät und dort die Seitenwände 17, 18 auseinanderspreizt. In dem Maße, in dem der Rand weiter in die Nut eingeschoben wird, pflanzt sich die Spreizung entlang der Nut auch entlang des Abschnitts 20 fort, so dass der Rand auf seiner ganzen Länge in die Nut einrücken kann.If the edge of the inner container is inserted in an orientation parallel to the groove 5, 6 in the groove 5, 6, there is the possibility of a blockage when a central region of the edge in front of the cutting edge 22 of the section 20 abuts. In general, therefore, one will insert the edge slightly inclined into the groove, so that it first comes into contact with the local tab 19 at one end of the groove and there, the side walls 17, 18 spread apart. To the extent that the edge is pushed further into the groove, the spread propagates along the groove also along the portion 20, so that the edge can engage in its full length in the groove.

Probleme beim Einschieben des Randes in die Nut können dennoch auftreten, wenn die Stirnleiste beim Einschieben so verbogen wird, dass ein noch nicht aufgespreizter Teil des Abschnitts 20 gegen den Rand anschlägt. Dies ist vermeidbar durch zwei Ausgestaltungen der Stirnleiste 14, die in Fig. 4 und 5 in zu Fig. 2 analogen Ansichten gezeigt sind.Problems with the insertion of the edge into the groove can still occur if the end strip is bent during insertion so that a not yet spread part of the section 20 abuts against the edge. This can be avoided by two embodiments of the end strip 14, which in 4 and 5 in to Fig. 2 analog views are shown.

In der Ausgestaltung der Fig. 4 wechseln zahlreiche Laschen 19 und ausgeschnittene Abschnitte 20 entlang der Nuten 5, 6 miteinander ab. Die Abschnitte 20 sind hier kurz genug, damit die Seitenwände 17, 18 auf der ganzen Länge eines Abschnitts 20 auseinandergespreizt werden, wenn der Rand die zwei an diesen Abschnitt angrenzenden Laschen 19 aufbiegt.In the embodiment of Fig. 4 change numerous tabs 19 and cut portions 20 along the grooves 5, 6 from each other. The sections 20 are here short enough so that the side walls 17, 18 are spread apart along the entire length of a section 20 when the edge bends the two tabs 19 adjacent to this section.

Ein Nachteil dieser Ausgestaltung ist, dass die Laschen 19 in der Mitte der Stirnleiste 14 genauso weit in die Isoliermaterialschicht des Kältegerätekorpus eingreifen wie die herkömmlichen durchgehenden Einführschrägen 10 der Fig. 1. Da jedoch die Gesamtausdehnung der Laschen 19 in Breitenrichtung des Korpus weniger als die Hälfte der Länge der Stirnleiste ist, ist der Wärmeeintrag in ein Kühlfach des Korpus gegenüber dem Fall der Fig.1 deutlich reduziert. Als eine weitere Maßnahme zur Verringerung des Wärmeeinfalls können die beidseitig von ausgeschnittenen Abschnitten 20 flankierten Laschen 19 in der Mitte der Stirnleiste 14 kürzer bemessen sein als die Laschen 19 an den Enden der Stirnleiste 14.A disadvantage of this embodiment is that the tabs 19 engage in the center of the end strip 14 as far into the insulating material layer of the refrigerator body as the conventional continuous insertion bevels 10 of Fig. 1 , However, since the total extent of the tabs 19 in the width direction of the body is less than half the length of the end strip, the heat input is in a cooling compartment of the body compared to the case of Fig.1 significantly reduced. As a further measure to reduce the incidence of heat flanked on both sides by cut-out portions 20 tabs 19 in the middle of the end strip 14 may be shorter than the tabs 19 at the ends of the front strip 14th

Eine weitere Maßnahme zur Verringerung des Wärmeeinfalls ist in Fig. 5 gezeigt: Hier sind die Laschen 19 zu ihrem freien Ende hin ähnlich den Zähnen einer Säge zugespitzt, um die Querschnittsfläche, auf der Wärme in die Isoliermaterialschicht vordringen kann, zu reduzieren..Another measure for reducing the incidence of heat is in Fig. 5 Here, the tabs 19 are tapered toward their free end, similar to the teeth of a saw, to reduce the cross-sectional area on which heat can penetrate into the insulating material layer.

Fig. 6 zeigt eine Ansicht von hinten von Innenbehältern 8, 9 eines Normalkühlfachs und eines Gefrierfachs eines Kältegerätekorpus und von zur Montage an diesen Innenbehältern 8, 9 vorgesehenen Stirnleisten 14, 23, 24, 25 vom in Fig. 2 gezeigten Typ. Die Stirnleisten bilden in dem Fachmann vertrauter Weise Teile einer festen Außenhaut des Kältegerätekorpus, und die Stirnleisten 23, 24, 25 können mit Decken-, Seitenwand oder Bodenelementen der Außenhaut einteilig ausgebildet sein oder hier nicht dargestellte Vorkehrungen zur Befestigung derartiger Wandelemente aufweisen. Fig. 6 shows a view from the rear of inner containers 8, 9 of a normal refrigeration compartment and a freezer compartment of a refrigerator body and provided for mounting on these inner containers 8, 9 end strips 14, 23, 24, 25 from in Fig. 2 shown type. The end strips form familiar in the art familiar parts of a solid outer skin of the refrigerator body, and the end strips 23, 24, 25 may be integrally formed with ceiling, side wall or bottom elements of the outer skin or not shown here arrangements for attachment of such wall elements.

In der Rückansicht der Fig. 6 sind von den Innenbehältern 8, 9 jeweils Rückwände sowie Rahmen 26 zu sehen, die an einer offenen Vorderseite der Innenbehälter 8, 9 von Vorderkanten der Seitenwände, der Decke oder des Bodens der Innenbehälter rechtwinklig abstehen. Zwischen den Innenbehältern 8, 9 ist eine Stirnleiste 14 vom in Fig. 2 bzw. 3 gezeigten Typ dargestellt. Man erkennt hier, dass der zentrale, von Einführschrägen freie Abschnitt 20 beider Nuten der Stirnleiste 14 breiter ist als der Boden 27 des Innenbehälters 8 bzw. die Decke 28 des Innenbehälters 9, die diesen beiden Nuten unmittelbar gegenüberliegen. Die Laschen 19 der Stirnleiste 14 überlappen daher bezogen auf die Breitenrichtung des Korpus zum Teil mit Rundungszonen 29 des Kühlfach-Innenbehälters 8, die dessen Boden 27 mit Seitenwänden 30 verbinden. Bei dem stärker isolierten, schmaleren Gefrierfach-Innenbehälter 9 überlappen die Laschen weder mit der Decke 28 noch den angrenzenden Rundungszonen 29, sondern befinden sich vollständig jenseits der Seitenwände 31. Durch diese Anordnung sind die Spitzen der Laschen 19 stets vom Innenbehälter 8 bzw. 9 durch eine dickere Isoliermaterialschicht getrennt, als wenn sie in einem zentralen Bereich der Stirnleiste 14 dem Boden 27 bzw. der Decke 28 direkt gegenüber lägen.In the rear view of the Fig. 6 From the inner containers 8, 9 each rear walls and frames 26 can be seen, which protrude at right angles to an open front of the inner container 8, 9 of leading edges of the side walls, the ceiling or the bottom of the inner container. Between the inner containers 8, 9 is a front strip 14 from in Fig. 2 or 3 shown type shown. It can be seen here that the central section 20 of both grooves of the end strip 14, which is free of insertion bevels, is wider than the bottom 27 of the inner container 8 or the cover 28 of the inner container 9, which lie directly opposite these two grooves. The tabs 19 of the end strip 14 therefore overlap with respect to the width direction of the body partially with rounding zones 29 of the inner compartment cooling container 8, which connect the bottom 27 with side walls 30. In the more isolated, narrower freezer compartment inner container 9, the tabs overlap neither with the blanket 28 nor the adjacent rounding zones 29, but are located entirely beyond the side walls 31. By this arrangement, the tips of the tabs 19 are always from the inner container 8 and 9, respectively a thicker layer of insulating material separated as if they were in a central region of the end strip 14 of the bottom 27 and the ceiling 28 directly opposite.

Die Stirnleisten 23, 24, die an der Oberkante des Rahmens 26 des Innenbehälters 8 bzw. der Unterkante des Rahmens 26 des Innenbehälters 9 angreifen, weisen jeweils eine in analoger Weise zu den zwei Nuten 5, 6 der Stirnleiste 14 aufgebaute Nuten mit zu den Rundungszonen 29 benachbarten, als Einführschrägen dienenden Laschen 19 auf.The end strips 23, 24, which engage on the upper edge of the frame 26 of the inner container 8 and the lower edge of the frame 26 of the inner container 9, each have a built-up in an analogous manner to the two grooves 5, 6 of the end strip 14 grooves with the rounding zones 29 adjacent, serving as chamfers 19 tabs.

An den seitlichen Stirnleisten 25, die sich über die gesamte Höhe des Kältegerätekorpus erstrecken, sind jeweils übereinander zwei Nuten 32, 33 geformt, von denen eine einen seitlichen Rand des Rahmens 26 des Innenbehälters 8 und die andere einen entsprechenden Rand des Innenbehälters 9 umgreift. Auch hier sind als Einführschrägen dienende Laschen 19 jeweils in Höhe der Rundungszonen 29 angeordnet. Ein Zwischenraum 34 zwischen den zwei Nuten 32, 33 dient zur Befestigung einer seitlich überstehenden Zunge 35 der Stirnleiste 14. Auch die Stirnleisten 23, 24 weisen derartige Zungen 35 auf, die zur Befestigung an jeweils oben und unten über die Nuten 32, 33 überstehenden Endstücken 36 der vertikalen Stirnleisten 25 vorgesehen sind.On the lateral end strips 25, which extend over the entire height of the refrigeration device body, two grooves 32, 33 are formed one above the other, one of which surrounds a lateral edge of the frame 26 of the inner container 8 and the other a corresponding edge of the inner container 9. Again, serving as insertion bevels tabs 19 are each arranged at the level of the rounding zones 29. A gap 34 between the two grooves 32, 33 serves to attach a laterally projecting tongue 35 of the end strip 14. The front strips 23, 24 have such tongues 35, which for attachment to each above and below the grooves 32, 33 projecting end pieces 36 of the vertical end strips 25 are provided.

Die Ränder 26 der Innenbehälter 8, 9 können wie in Fig. 1 gezeigt mit einer umlaufenden Rille versehen sein, die ein Heizrohr 37 einer Rahmenheizung aufnimmt. Da die Stirnleisten 14, 23, 24, 25 aufgrund ihrer oben beschriebenen Gestalt und Anordnung nur relativ schwach gekühlt sind, genügt eine geringe Leistung der Rahmenheizung, um ein Betauen frei liegender Oberflächen der Stirnleisten zu verhindern. Das von verdichtetem Kältemittel durchströmte Heizrohr 37 kann daher in einem Kältemittelkreislauf des Kältegeräts stromabwärts von einem Verflüssiger angeordnet sein, der in an sich bekannter Weise den überwiegenden Teil der Abwärme des Geräts an die Umgebung abgibt.The edges 26 of the inner container 8, 9 can, as in Fig. 1 shown to be provided with a circumferential groove which receives a heating tube 37 of a frame heater. Because the End strips 14, 23, 24, 25 are cooled only relatively weak due to their shape and arrangement described above, a low performance of the frame heater is sufficient to prevent Betauen lying exposed surfaces of the end strips. The heating tube 37 through which compressed refrigerant flows can therefore be arranged downstream of a condenser in a refrigerant circuit of the refrigeration device, which emits in a manner known per se the predominant part of the waste heat of the device to the environment.

Claims (12)

  1. Refrigerator, in particular a household refrigerator, having a body which comprises an inner container (8, 9) and an outer shell as well as an insulating layer (11) enclosed between the inner container (8, 9) and the outer shell, wherein the outer shell is provided with at least one metal front strip (14, 23, 24, 25) on which a groove (5, 6, 32, 33) delimited by a guide chamfer and receiving an edge of the inner container (8, 9) is formed, and in its longitudinal direction the groove (5, 6, 32, 33) is divided into at least one first and one second segment (19, 20), within which the width of the guide chamfer is less than in the first segment (19), characterised in that a first segment (19) is provided on both ends of the groove (5, 6, 32, 33) and in that the overall extent of all second segments (20) in the longitudinal direction of the groove is greater than that of the first segments (19).
  2. Refrigerator according to claim 1, characterised in that the inner container (8, 9) has the shape of a box that is open on one side with a frame (26) protruding from walls (27, 28, 30, 31) of the inner container (8, 9) adjoining the open side and surrounding the open side, and in that an outer edge of the frame (26) engages in the groove (5, 6, 32, 33) of the front strip (14, 23, 24, 25).
  3. Refrigerator according to claim 1 or 2, characterised in that the width of the guide chamfer in the second segment (20) of the groove (5, 6, 32, 33) is at most half as large as in the first segment (19).
  4. Refrigerator according to claim 1 or 2, characterised in that the width of the guide chamfer is zero in the second segment (20) of the groove (5, 6, 32, 33).
  5. Refrigerator according to any one of the preceding claims, characterised in that a wall segment (22), which bulges uniformly into the groove (5, 6, 32, 33), of the front strip (14, 23, 24, 25) adjoins the guide chamfer.
  6. Refrigerator according to claim 5, characterised in that the bulged wall segment (22) extends over the entire length of the groove (5, 6, 32, 33).
  7. Refrigerator body according to one of the preceding claims, characterised in that the two first segments (19) delimit an identical central second segment (20).
  8. Refrigerator body according to one of claims 1 to 6, characterised in that a plurality of first and second segments (19, 20) alternate with each other in the longitudinal direction of the groove.
  9. Refrigerator body according to claim 7, characterised in that the central second segment (20) is longer in the longitudinal direction of the groove than a flat wall (27, 28) of the inner container (8, 9) which opposes it.
  10. Refrigerator body according to one of the preceding claims, characterised in that a frame heater is arranged in the groove (6).
  11. Refrigerator body according to claim 10, characterised in that a channel receiving a heating pipe (37) of the frame heater is formed in the edge of the frame (26) received in the groove (6).
  12. Refrigerator body according to claim 10 or 11, characterised in that the frame heater is connected in a coolant circuit downstream of a liquefier.
EP10744919.1A 2009-08-21 2010-08-16 Refrigerator having a metal front strip Active EP2467659B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10744919T PL2467659T3 (en) 2009-08-21 2010-08-16 Refrigerator having a metal front strip

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910028789 DE102009028789A1 (en) 2009-08-21 2009-08-21 Refrigeration device with metallic front strip
PCT/EP2010/061869 WO2011020802A2 (en) 2009-08-21 2010-08-16 Refrigerator having a metal front strip

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EP2467659A2 EP2467659A2 (en) 2012-06-27
EP2467659B1 true EP2467659B1 (en) 2018-01-17

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EP (1) EP2467659B1 (en)
CN (1) CN102483292B (en)
DE (1) DE102009028789A1 (en)
PL (1) PL2467659T3 (en)
RU (1) RU2519788C2 (en)
TR (1) TR201802738T4 (en)
WO (1) WO2011020802A2 (en)

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Publication number Priority date Publication date Assignee Title
DE102011076486A1 (en) * 2011-05-25 2012-11-29 BSH Bosch und Siemens Hausgeräte GmbH Domestic refrigerator with a front strip
DE102014117287A1 (en) * 2014-11-26 2016-06-02 Miele & Cie. Kg unit
DE102014225196A1 (en) 2014-12-09 2016-06-09 BSH Hausgeräte GmbH Household refrigerators device
KR102599885B1 (en) * 2015-10-15 2023-11-08 삼성전자주식회사 Refrigerator
WO2019199266A1 (en) * 2018-04-09 2019-10-17 Whirlpool Corporation Microsphere-based insulating materials for use in vacuum insulated structures
DE102019209959A1 (en) * 2019-07-05 2021-01-07 BSH Hausgeräte GmbH Home appliance device
DE102020212260A1 (en) 2020-09-29 2022-03-31 BSH Hausgeräte GmbH Household refrigeration appliance and method for assembling a household refrigeration appliance

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Publication number Priority date Publication date Assignee Title
JPS5364364U (en) * 1976-11-04 1978-05-30
KR890001328B1 (en) * 1983-01-28 1989-04-29 산요덴끼 가부시기가이샤 Refrigerator cabbinet
US4862577A (en) * 1987-05-19 1989-09-05 Whirlpool Corporation Method of making a refrigerator cabinet
JP3255689B2 (en) * 1992-03-11 2002-02-12 松下冷機株式会社 Manufacturing method of heat insulation box
DE19745860A1 (en) * 1997-10-16 1999-06-17 Bosch Siemens Hausgeraete Insulating wall
JP2002295963A (en) * 2001-03-29 2002-10-09 Sanyo Electric Co Ltd Refrigerator
CN101059299A (en) * 2007-05-28 2007-10-24 王玉光 Side-opening type cylindrical refrigerator

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CN102483292B (en) 2014-11-19
RU2519788C2 (en) 2014-06-20
RU2012108041A (en) 2013-09-27
EP2467659A2 (en) 2012-06-27
DE102009028789A1 (en) 2011-02-24
PL2467659T3 (en) 2018-06-29
WO2011020802A3 (en) 2011-06-03
TR201802738T4 (en) 2018-03-21
CN102483292A (en) 2012-05-30
WO2011020802A2 (en) 2011-02-24

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