EP1430261A1 - Housing for a refrigeration device - Google Patents

Housing for a refrigeration device

Info

Publication number
EP1430261A1
EP1430261A1 EP02797979A EP02797979A EP1430261A1 EP 1430261 A1 EP1430261 A1 EP 1430261A1 EP 02797979 A EP02797979 A EP 02797979A EP 02797979 A EP02797979 A EP 02797979A EP 1430261 A1 EP1430261 A1 EP 1430261A1
Authority
EP
European Patent Office
Prior art keywords
core
housing
housing according
intermediate floor
groove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02797979A
Other languages
German (de)
French (fr)
Other versions
EP1430261B1 (en
Inventor
Christian Mayershofer
Rainer Brachert
Rudolf Schmidt
Anton Stempfle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1430261A1 publication Critical patent/EP1430261A1/en
Application granted granted Critical
Publication of EP1430261B1 publication Critical patent/EP1430261B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/069—Cooling space dividing partitions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0681—Details thereof

Definitions

  • the present invention relates to a housing for a refrigerator with an outer housing box which encloses an interior and at least one intermediate floor which is mounted in the interior in order to divide it into subspaces.
  • Typical refrigeration appliances of this type are combination appliances, in which one compartment functions as a freezer compartment and a second as a normal refrigerator compartment.
  • Refrigerators with several intermediate floors are also known, the interior of which is divided into a freezer compartment, a normal refrigerator compartment and a cellar compartment.
  • the intermediate floors have to connect tightly to the inner wall of the housing box and have to be thermally insulated in a manner similar to the outer housing box which jointly surrounds the subspaces.
  • Such intermediate floors are constructed as hollow bodies which are attached with their lateral flanks close to the inner walls of the housing box and which are subsequently foamed in order to achieve the necessary insulation capacity.
  • This technique is similar to the one used to manufacture the outer housing box: it is assembled from outer and inner walls that define a cavity between them that is foamed for thermal insulation.
  • This technique is complex because the production of a hollow part, e.g. by blowing or injection molding techniques requires expensive molds, and the tight fastening of these parts in the housing box with the aim of subsequently foaming them is complicated and labor-intensive.
  • the object of the present invention is to provide a housing for a refrigerator with an interior divided by an intermediate floor, in which the costs for producing the inner floor are reduced and its attachment is simplified.
  • Another task is to provide a recycling-friendly housing.
  • the invention provides that first an insulating body or core is made from a foam material, the strength of which is sufficient to attach it directly to the inner wall of the housing. This eliminates the need for a dimensionally accurate production of a hollow body; a tight cover of the core, which is desirable for protecting the foam material from contamination and against the penetration of moisture, can be constructed from one or more easy-to-manufacture plates.
  • the intermediate floor made of foam material can be assembled in a simple manner by pushing the core onto at least one groove or a projection which is formed on the inner wall of the housing box.
  • a projection complementary to a groove of the inner wall or a groove complementary to a projection of the inner wall is expediently formed on a lateral flank of the core.
  • knobs can be provided on the side flanks of the core, which are deformed when the core is pushed into the interior and thus ensure a tight connection of the core to the inner wall.
  • a sealing tape can be arranged on the side flanks of the core.
  • the already mentioned plates of the tight cover are expediently held on the core by a plug or clamp connection.
  • a connection is easily detachable when dismantling the refrigerator and favors one sorted recovery of the materials used.
  • it enables simple replacement of individual panels in the event of damage, in contrast to the conventional technology, where in the event of damage to the hollow body, the entire body and its foam must be replaced.
  • At least one groove for accommodating heating devices is preferably formed on a front side of the core, said groove preventing condensation of atmospheric moisture on the front side of the core if each of the subspaces is assigned its own door.
  • At least one rib is preferably formed on the underside of the intermediate floor, which surrounds a surface of the underside under which the fan is arranged. Such a rib, if moisture is deposited on the underside of the intermediate floor outside this area, prevents drops of condensed water from migrating along the underside to and over the fan.
  • the surface of the underside surrounded by the rib can be concave, so that condensate forming on the surface runs in the direction of the rib and drips on it.
  • the core is preferably made of EPS (polystyrene foam).
  • Figure 1 shows a refrigerator with an interior divided by an intermediate floor in a schematic section.
  • Fig. 2 is an exploded view of the mezzanine floor according to the present invention.
  • FIG. 3 shows a side view of the core of the intermediate floor
  • Fig. 4 is a partial section through a refrigerator housing with an intermediate floor according to the invention.
  • Fig. 1 shows a highly schematic representation of a section through a refrigerator housing, in which the present invention is applicable.
  • the housing comprises an outer housing box, which is composed of an inner container 1 and outer walls 2 and in which an intermediate space 3 between the inner container 1 and outer walls 2 is filled with insulating foam.
  • An intermediate floor 4 divides the interior of the housing box into an upper subspace 5, e.g. a freezer compartment and a lower compartment 6, e.g. a normal refrigerator compartment.
  • Each of these subspaces 5, 6 is assigned a door 7 or 8, which adjoin one another at a gap 9 at the level of the intermediate floor 4.
  • the intermediate floor 4 has an essentially L-shaped cross section with a horizontal main section 10 extending from the doors 7, 8 to the rear wall of the inner container 1 and a section 11 angled downward at the front edge of the main section 10.
  • This shape of the intermediate floor 4 ensures on the one hand at the level of the gap 9 a sufficiently thick layer of insulation against heat penetrating into the gap from the outside; on the other hand, over the major part of the main section 10, its thickness can remain limited to a small value which is required for effective thermal insulation between the subspaces 5, 6 or a sufficient mechanical strength of the intermediate floor 4, so that the available storage volume in the inner container 1 is not to interfere with the necessary degree.
  • FIG. 2 shows an exploded perspective view of the structure of the intermediate floor 4.
  • This comprises a one-piece core 12 made of expanded polystyrene (EPS), which essentially fills the intermediate floor 4.
  • EPS expanded polystyrene
  • Two horizontal grooves 13 are formed on the front side 14 of the core 12 facing the viewer; they are provided to receive a hot gas pipe (not shown) through which warm refrigerant is passed after passing through the compressor of a refrigerator and before passing through its heat exchanger to keep the front 14 warm enough to cause condensation to form in the gap 9 is avoided.
  • the horizontal grooves 13 are connected in the left edge region of the front side 14 by a vertical groove and merge into grooves extending along the right side flank 15 on the right edge region, so that the hot gas pipe can be laid continuously through these grooves.
  • a sealing tape 30 made of a closed-cell foam material such as ZPE is provided in order to be arranged on the side flanks 15, front side 14 and rear side of the core 12 after the attachment of the hot gas line in its grooves or in grooves (not shown) provided especially for the sealing tape 30 to be and to ensure a tight connection of the intermediate floor 4 to the inner container 1.
  • a sealing tape 30 made of a closed-cell foam material such as ZPE is provided in order to be arranged on the side flanks 15, front side 14 and rear side of the core 12 after the attachment of the hot gas line in its grooves or in grooves (not shown) provided especially for the sealing tape 30 to be and to ensure a tight connection of the intermediate floor 4 to the inner container 1.
  • FIG. 2 such sealing tapes can also be placed in pairs, in each case near the top and bottom of the core 12.
  • a guide groove 16 extends in the horizontal direction on both side flanks 15 of the core 12. It is provided to receive a complementary rib formed on the inner container 1, so that the intermediate base 4 can be mounted on these ribs by simply pushing the core 12 on.
  • a horizontal rib could also be provided on a side flank of the core, which engages in a complementarily shaped groove in a side wall of the inner container 1.
  • the top 17 of the core 12 is covered by an upper cover plate 18, e.g. made of solid polystyrene, protected against damage and contamination.
  • the cover plate 18 engages with its front edge 19 bent downward into the upper of the two grooves 13; an analog groove engagement with a groove on one of the side flanks 15 of the core or the rear side thereof can also be provided in order to clamp the upper cover plate 18 to the core 12.
  • the underside of the upper cover plate could also be provided with thorns, possibly reinforced with barbs, which can be driven into the core 12 for mounting the cover plate.
  • a lower cover plate 20 which covers the underside of the core 12, is equipped on its front edge 21 in a manner analogous to that of the cover plate 18 with a retaining lug for engaging in the lower of the grooves 13. It can also be clamped by engaging a further retaining lug in a lateral or rear groove of the core in the same way as the upper cover plate 18 without gluing to the core 12; Attachment using thorns is also an option.
  • slots 22 on its front side 14 parallel to the grooves 13, which slots can be formed simply by cutting the material of the core.
  • These slots are provided to receive tongues 23 of upper and lower cross members 24 shown in FIG. 2, which can be designed as continuous casting profiles made of plastic or metal and on the one hand can serve to stiffen the intermediate floor 4 and on the other hand as a carrier for one in the FIG. Metallic screen, not shown, can be used, which completely covers the front 14 of the core.
  • Fig. 2 also shows a downward rib 25 on the lower cover plate 20, which extends approximately C-shaped around a surface 26 of the lower cover plate adjacent to the rear wall of the inner container in the assembled state of the intermediate base. As the section of FIG. 4 shows, this surface 26 is provided in order to accommodate an electric fan 27 below it in the lower part space 6.
  • the rib 25 prevents moisture drops, e.g. could form by condensation on the lower cover plate 20 outside the surface 26 enclosed by the rib 25, reach the fan 27. Appropriate protection of the fan 27 against condensate forming on the surface 26 can be achieved if the surface 26 is sloping towards the rib 25.
  • the guide groove 16 extends not only over the side flanks 15 of the core 12, but also over its rear side, and a rib 28 is also formed on the rear wall of the inner container 1, which engages in the guide groove 16 in a load-bearing manner , In this way, a high load-bearing capacity of the intermediate floor 4 is achieved without the need for excessive wall thicknesses of the cover plates 18, 20 or the core 12.
  • an additional rib 29 can be formed on the inner container 1 in the region of the lower partial space 6, on which the lower cover plate 20 rests.

Landscapes

  • 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)

Abstract

The invention relates to a housing for a refrigeration device, which is composed of an outer housing box (1) that encloses an interior space, and at least one intermediate bottom (4) mounted in the interior space. Said intermediate bottom (4) comprises a pre-shaped core (12) made of a solid foam material, which is directly fastened on the inner wall of the housing box (1).

Description

Gehäuse für ein Kältegerät Housing for a refrigerator
Die vorliegende Erfindung betrifft ein Gehäuse für ein Kältegerät mit einem äußeren Gehäusekasten, der einen Innenraum umschließt, und wenigstens einem Zwischenboden, der in dem Innenraum montiert ist, um ihn in Teilräume zu unterteilen. Typische Kältegeräte dieser Art sind Kombinationsgeräte, bei denen ein Teilraum als Gefrierfach und ein zweiter als Normalkühlfach fungiert. Es sind auch Kältegeräte mit mehreren Zwischenböden bekannt, deren Innenraum in ein Gefrierfach, ein Normalkühlfach und ein Kellerfach unterteilt ist.The present invention relates to a housing for a refrigerator with an outer housing box which encloses an interior and at least one intermediate floor which is mounted in the interior in order to divide it into subspaces. Typical refrigeration appliances of this type are combination appliances, in which one compartment functions as a freezer compartment and a second as a normal refrigerator compartment. Refrigerators with several intermediate floors are also known, the interior of which is divided into a freezer compartment, a normal refrigerator compartment and a cellar compartment.
Da in den verschiedenen Teilräumen unterschiedliche Temperaturen aufrechterhalten werden müssen, müssen die Zwischenböden dicht an die Innenwand des Gehäusekastens anschließen und in ähnlicher Weise wie der äußere Gehäusekasten, der die Teilräume gemeinsam umgibt, thermisch isoliert sein.Since different temperatures have to be maintained in the different subspaces, the intermediate floors have to connect tightly to the inner wall of the housing box and have to be thermally insulated in a manner similar to the outer housing box which jointly surrounds the subspaces.
Herkömmlicherweise werden solche Zwischenböden als Hohlkörper konstruiert, die mit ihren seitlichen Flanken dicht an die Innenwände des Gehäusekastens angefügt werden und die anschließend ausgeschäumt werden, um die notwendige Isolationsfähigkeit zu erreichen. Diese Technik ist ähnlich derjenigen, mit der herkömmlicherweise auch der äußere Gehäusekasten hergestellt wird: Dieser wird zusammengefügt aus Außen- und Innenwänden, die zwischen sich einen Hohlraum begrenzen, der zur Wärmeisolierung ausgeschäumt wird.Conventionally, such intermediate floors are constructed as hollow bodies which are attached with their lateral flanks close to the inner walls of the housing box and which are subsequently foamed in order to achieve the necessary insulation capacity. This technique is similar to the one used to manufacture the outer housing box: it is assembled from outer and inner walls that define a cavity between them that is foamed for thermal insulation.
Diese Technik ist aufwendig, denn die Herstellung eines Hohlteiles, z.B. durch Blas- oder Spritztechniken erfordert kostspielige Hohlformen, und die dichte Befestigung dieser Teile im Gehäusekasten mit dem Ziel, sie anschließend auszuschäumen, ist kompliziert und arbeitsaufwendig.This technique is complex because the production of a hollow part, e.g. by blowing or injection molding techniques requires expensive molds, and the tight fastening of these parts in the housing box with the aim of subsequently foaming them is complicated and labor-intensive.
Außerdem erschwert der beim Ausschäumen entstehende innige Verbund zwischen dem Schaummaterial und dem Hohlkörper, den es ausfüllt, eine sortenreine Wiedergewinnung der verwendeten Werkstoffe, wenn das Kältegerät nach Ablauf seiner Lebensdauer zerlegt wird. Aufgabe der vorliegenden Erfindung ist, ein Gehäuse für ein Kältegerät mit einem durch einen Zwischenboden unterteilten Innenraum anzugeben, bei dem die Kosten für die Herstellung des Innenbodens reduziert sind und seine Anbringung vereinfacht ist.In addition, the intimate bond between the foam material and the hollow body that it fills out during foaming makes it difficult to recover the materials used when the refrigerator is disassembled after its service life. The object of the present invention is to provide a housing for a refrigerator with an interior divided by an intermediate floor, in which the costs for producing the inner floor are reduced and its attachment is simplified.
Eine weitere Aufgabe ist, ein recyclingfreundliches Gehäuse anzugeben.Another task is to provide a recycling-friendly housing.
Diese Aufgaben werden gelöst durch ein Gehäuse für ein Kältegerät mit dem Merkmal des Anspruchs 1.These objects are achieved by a housing for a refrigerator with the feature of claim 1.
Anstatt zunächst einen Hohlkörper zu erzeugen und diesen später mit isolierendem Schaum zu füllen, sieht die Erfindung vor, dass zunächst ein isolierender Körper oder Kern aus einem Schaummaterial hergestellt wird, dessen Festigkeit ausreicht, um ihn unmittelbar an der Innenwand des Gehäuses zu befestigen. Dadurch wird eine maßgenaue Fertigung eines Hohlkörpers überflüssig; eine dichte Abdeckung des Kerns, die zum Schutz des Schaummaterials vor Verunreinigung und vor dem Eindringen von Feuchtigkeit wünschenswert ist, kann aus einer oder mehreren einfach herzustellenden Platten aufgebaut sein.Instead of first producing a hollow body and later filling it with insulating foam, the invention provides that first an insulating body or core is made from a foam material, the strength of which is sufficient to attach it directly to the inner wall of the housing. This eliminates the need for a dimensionally accurate production of a hollow body; a tight cover of the core, which is desirable for protecting the foam material from contamination and against the penetration of moisture, can be constructed from one or more easy-to-manufacture plates.
Der Zwischenboden aus Schaummaterial kann auf einfache Weise montiert werden durch Aufschieben des Kerns auf wenigstens eine Rille oder einen Vorsprung, der an der Innenwand des Gehäusekastens gebildet ist. Zweckmäßigerweise ist jeweils ein zu einer Rille der Innenwand komplementärer Vorsprung bzw. eine zu einem Vorsprung der Innenwand komplementäre Rille an einer seitlichen Flanke des Kerns gebildet.The intermediate floor made of foam material can be assembled in a simple manner by pushing the core onto at least one groove or a projection which is formed on the inner wall of the housing box. A projection complementary to a groove of the inner wall or a groove complementary to a projection of the inner wall is expediently formed on a lateral flank of the core.
Um eine wirksame Abdichtung zwischen den Teilräumen beiderseits des Zwischenbodens zu erzielen, können an den seitlichen Flanken des Kerns Noppen vorgesehen sein, die beim Einschieben des Kerns in den Innenraum verformt werden und so einen dichten Anschluss des Kerns an die Innenwand gewährleisten.In order to achieve an effective seal between the partial spaces on both sides of the intermediate floor, knobs can be provided on the side flanks of the core, which are deformed when the core is pushed into the interior and thus ensure a tight connection of the core to the inner wall.
Alternativ kann ein Dichtband an den seitlichen Flanken des Kerns angeordnet sein.Alternatively, a sealing tape can be arranged on the side flanks of the core.
Die bereits erwähnten Platten der dichten Abdeckung sind an dem Kern zweckmäßigerweise durch eine Steck- oder Klemmverbindung gehalten. Eine solche Verbindung ist bei der Demontage des Kältegeräts leicht lösbar und begünstigt eine sortenreine Wiedergewinnung der verwendeten Werkstoffe. Außerdem ermöglicht sie einen einfachen Austausch einzelner Platten im Falle einer Beschädigung, im Gegensatz zu der herkömmlichen Technik, wo im Falle einer Beschädigung des Hohlkörpers dieser komplett mitsamt seiner Ausschäumung ausgetauscht werden muss.The already mentioned plates of the tight cover are expediently held on the core by a plug or clamp connection. Such a connection is easily detachable when dismantling the refrigerator and favors one sorted recovery of the materials used. In addition, it enables simple replacement of individual panels in the event of damage, in contrast to the conventional technology, where in the event of damage to the hollow body, the entire body and its foam must be replaced.
An einer Vorderseite des Kerns ist vorzugsweise wenigstens eine Nut zur Aufnahme von Heizeinrichtungen geformt, die, wenn jedem der Teilräume eine eigene Tür zugeordnet ist, Kondensation von Luftfeuchtigkeit an der Vorderseite des Kerns verhindert.At least one groove for accommodating heating devices is preferably formed on a front side of the core, said groove preventing condensation of atmospheric moisture on the front side of the core if each of the subspaces is assigned its own door.
Wenn in dem unterhalb des Zwischenbodens liegenden Teilraum ein Gebläse vorgesehen ist, insbesondere zum Umwälzen von Kaltluft in dem Teilraum, so ist an der Unterseite des Zwischenbodens vorzugsweise wenigstens eine Rippe gebildet, die eine Fläche der Unterseite umgibt, unter der das Gebläse angeordnet ist. Eine solche Rippe verhindert, falls sich Feuchtigkeit an der Unterseite des Zwischenbodens außerhalb dieser Fläche niederschlägt, dass Kondenswassertropfen entlang der Unterseite bis über das Gebläse wandern und auf dieses tropfen.If a fan is provided in the subspace located below the intermediate floor, in particular for circulating cold air in the partial room, at least one rib is preferably formed on the underside of the intermediate floor, which surrounds a surface of the underside under which the fan is arranged. Such a rib, if moisture is deposited on the underside of the intermediate floor outside this area, prevents drops of condensed water from migrating along the underside to and over the fan.
Ebenfalls zum Schutz des Gebläses vor Kondensattropfen kann die von der Rippe umgebene Fläche der Unterseite konkav geformt sein, so dass sich auf der Fläche bildendes Kondensat in Richtung der Rippe abläuft und an dieser abtropft.Also to protect the blower from condensate drops, the surface of the underside surrounded by the rib can be concave, so that condensate forming on the surface runs in the direction of the rib and drips on it.
Der Kern ist vorzugsweise aus EPS (Polystyrolschaum) hergestellt.The core is preferably made of EPS (polystyrene foam).
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen mit Bezug auf die beigefügten Figuren. Es zeigen:Further features and advantages of the invention result from the following description of exemplary embodiments with reference to the attached figures. Show it:
Fig. 1 ein Kältegerät mit einem durch einen Zwischenboden unterteilten Innenraum in einem schematischen Schnitt;Figure 1 shows a refrigerator with an interior divided by an intermediate floor in a schematic section.
Fig. 2 eine Explosionsdarstellung des Zwischenbodens gemäß der vorliegenden Erfindung;Fig. 2 is an exploded view of the mezzanine floor according to the present invention;
Fig. 3 eine Seitenansicht des Kerns des Zwischenbodens; und Fig. 4 einen Teilschnitt durch ein Kältegerätegehäuse mit einem Zwischenboden gemäß der Erfindung.3 shows a side view of the core of the intermediate floor; and Fig. 4 is a partial section through a refrigerator housing with an intermediate floor according to the invention.
Fig. 1 zeigt in einer stark schematisierten Darstellung einen Schnitt durch ein Kältegerätegehäuse, bei dem die vorliegende Erfindung anwendbar ist. Das Gehäuse umfasst einen äußeren Gehäusekasten, der aus einem Innenbehälter 1 und Außenwänden 2 zusammengesetzt ist, und bei dem ein Zwischenraum 3 zwischen Innenbehälter 1 und Außenwänden 2 mit isolierendem Schaum ausgefüllt ist. Ein Zwischenboden 4 unterteilt den Innenraum des Gehäusekastens in einen oberen Teilraum 5, z.B. ein Gefrierfach, und einen unteren Teilraum 6, z.B. ein Normalkühlfach. Jedem dieser Teilräume 5, 6 ist eine Tür 7 bzw. 8 zugeordnet, die an einem Spalt 9 in Höhe des Zwischenbodens 4 aneinandergrenzen.Fig. 1 shows a highly schematic representation of a section through a refrigerator housing, in which the present invention is applicable. The housing comprises an outer housing box, which is composed of an inner container 1 and outer walls 2 and in which an intermediate space 3 between the inner container 1 and outer walls 2 is filled with insulating foam. An intermediate floor 4 divides the interior of the housing box into an upper subspace 5, e.g. a freezer compartment and a lower compartment 6, e.g. a normal refrigerator compartment. Each of these subspaces 5, 6 is assigned a door 7 or 8, which adjoin one another at a gap 9 at the level of the intermediate floor 4.
Der Zwischenboden 4 hat einen im wesentlichen L-förmigen Querschnitt mit einem sich von den Türen 7, 8 bis zur Rückwand des Innenbehälters 1 erstreckenden horizontalen Hauptabschnitt 10 und einem am vorderen Rand des Hauptabschnitts 10 nach unten abgewinkelten Abschnitt 11. Diese Form des Zwischenbodens 4 gewährleistet einerseits in Höhe des Spalts 9 eine ausreichend dicke Dämmschicht gegen in den Spalt von außen eindringende Wärme; andererseits kann über den größten Teil des Hauptabschnitts 10 dessen Dicke auf einen kleinen Wert beschränkt bleiben, der für eine wirksame Wärmedämmung zwischen den Teilräumen 5, 6 bzw. eine ausreichende mechanische Festigkeit des Zwischenbodens 4 erforderlich ist, um so das verfügbare Stauvolumen im Innenbehälter 1 nicht über das notwendige Maß zu beeinträchtigen.The intermediate floor 4 has an essentially L-shaped cross section with a horizontal main section 10 extending from the doors 7, 8 to the rear wall of the inner container 1 and a section 11 angled downward at the front edge of the main section 10. This shape of the intermediate floor 4 ensures on the one hand at the level of the gap 9 a sufficiently thick layer of insulation against heat penetrating into the gap from the outside; on the other hand, over the major part of the main section 10, its thickness can remain limited to a small value which is required for effective thermal insulation between the subspaces 5, 6 or a sufficient mechanical strength of the intermediate floor 4, so that the available storage volume in the inner container 1 is not to interfere with the necessary degree.
Fig. 2 zeigt in einer perspektivischen Explosionsdarstellung den Aufbau des Zwischenbodens 4. Dieser umfasst einen einteiligen Kern 12 aus expandiertem Polystyrol (EPS), der den Zwischenboden 4 im wesentlichen ausfüllt.2 shows an exploded perspective view of the structure of the intermediate floor 4. This comprises a one-piece core 12 made of expanded polystyrene (EPS), which essentially fills the intermediate floor 4.
Zwei horizontale Nuten 13 sind an der dem Betrachter zugewandten Vorderseite 14 des Kerns 12 gebildet; sie sind vorgesehen, um ein Heißgasrohr (nicht dargestellt) aufzunehmen, durch das warmes Kältemittel nach dem Durchgang durch den Verdichter einer Kältemaschine und vor dem Durchgang durch ihren Wärmetauscher geleitet wird, um die Vorderseite 14 so warm zu halten, dass Kondenswasserbildung im Spalt 9 vermieden wird. Die horizontalen Nuten 13 sind im linken Randbereich der Vorderseite 14 durch eine vertikale Nut verbunden und gehen am rechten Randbereich in sich entlang der rechten Seitenflanke 15 erstreckende Nuten über, so dass das Heißgasrohr durchgehend durch diese Nuten verlegbar ist.Two horizontal grooves 13 are formed on the front side 14 of the core 12 facing the viewer; they are provided to receive a hot gas pipe (not shown) through which warm refrigerant is passed after passing through the compressor of a refrigerator and before passing through its heat exchanger to keep the front 14 warm enough to cause condensation to form in the gap 9 is avoided. The horizontal grooves 13 are connected in the left edge region of the front side 14 by a vertical groove and merge into grooves extending along the right side flank 15 on the right edge region, so that the hot gas pipe can be laid continuously through these grooves.
Ein Dichtband 30 aus einem geschlossenporigen Schaumstoffmaterial wie etwa ZPE ist vorgesehen, um im Anschluß an die Anbringung der Heißgasleitung in deren Nuten oder in eigens für das Dichtband 30 vorgesehenen Nuten (nicht dargestellt) an den Seitenflanken 15, Vorderseite 14 und Rückseite des Kerns 12 angeordnet zu werden und so einen dichten Anschluß des Zwischenbodens 4 an den Innenbehälter 1 zu gewährleisten. Zwar ist in Fig. 2 nur ein Dichtband 30 gezeigt, doch können derartige Dichtbänder auch zu zweit, jeweils in der Nähe der Ober- bzw. Unterseite des Kerns 12, platziert werden.A sealing tape 30 made of a closed-cell foam material such as ZPE is provided in order to be arranged on the side flanks 15, front side 14 and rear side of the core 12 after the attachment of the hot gas line in its grooves or in grooves (not shown) provided especially for the sealing tape 30 to be and to ensure a tight connection of the intermediate floor 4 to the inner container 1. Although only one sealing tape 30 is shown in FIG. 2, such sealing tapes can also be placed in pairs, in each case near the top and bottom of the core 12.
An beiden Seitenflanken 15 des Kerns 12 erstreckt sich jeweils eine Führungsnut 16 in horizontaler Richtung. Sie ist vorgesehen, um eine am Innenbehälter 1 ausgeformte, komplementäre Rippe aufzunehmen, so dass der Zwischenboden 4 durch einfaches Aufschieben des Kerns 12 auf diese Rippen montierbar ist.A guide groove 16 extends in the horizontal direction on both side flanks 15 of the core 12. It is provided to receive a complementary rib formed on the inner container 1, so that the intermediate base 4 can be mounted on these ribs by simply pushing the core 12 on.
Selbstverständlich könnte mit der gleichen Wirkung auch eine horizontale Rippe an einer Seitenflanke des Kerns vorgesehen sein, die in eine komplementär geformte Nut einer Seitenwand des Innenbehälters 1 eingreift.Of course, with the same effect, a horizontal rib could also be provided on a side flank of the core, which engages in a complementarily shaped groove in a side wall of the inner container 1.
Die Oberseite 17 des Kerns 12 ist durch eine obere Abdeckplatte 18, z.B. aus massivem Polystyrol, gegen Beschädigung und Verunreinigung geschützt. Die Abdeckplatte 18 greift mit ihrem nach unten abgeknickten vorderem Rand 19 in die obere der zwei Nuten 13 ein; ein analoger Nuteingriff mit einer Nut an einer der Seitenflanken 15 des Kerns oder dessen Rückseite kann ferner vorgesehen sein, um die obere Abdeckplatte 18 am Kern 12 zu verklammern. Alternativ könnte die Unterseite der oberen Abdeckplatte auch mit - eventuell mit Widerhaken bewehrten - Dornen versehen sein, die zur Montage der Abdeckplatte auf dem Kern 12 in diesen vorgetrieben werden können.The top 17 of the core 12 is covered by an upper cover plate 18, e.g. made of solid polystyrene, protected against damage and contamination. The cover plate 18 engages with its front edge 19 bent downward into the upper of the two grooves 13; an analog groove engagement with a groove on one of the side flanks 15 of the core or the rear side thereof can also be provided in order to clamp the upper cover plate 18 to the core 12. Alternatively, the underside of the upper cover plate could also be provided with thorns, possibly reinforced with barbs, which can be driven into the core 12 for mounting the cover plate.
In beiden Fällen ist keine Verklebung zwischen Abdeckplatte 18 und Kern 12 erforderlich, so dass diese bei einer Demontage sortenrein von einander getrennt werden können. Eine untere Abdeckplatte 20, die die Unterseite des Kerns 12 abdeckt, ist an ihrem vorderen Rand 21 in analoger Weise wie die Abdeckplatte 18 mit einer Haltenase zum Eingreifen in die untere der Nuten 13 ausgerüstet. Auch sie kann durch Eingriff einer weiteren Haltenase in eine seitliche oder rückwärtige Nut des Kerns in der gleichen Weise wie die obere Abdeckplatte 18 ohne Klebung am Kern 12 verklammert werden; auch eine Befestigung mit Hilfe von Dornen kommt in Frage.In both cases, no gluing between the cover plate 18 and the core 12 is required, so that they can be separated from one another by type during disassembly. A lower cover plate 20, which covers the underside of the core 12, is equipped on its front edge 21 in a manner analogous to that of the cover plate 18 with a retaining lug for engaging in the lower of the grooves 13. It can also be clamped by engaging a further retaining lug in a lateral or rear groove of the core in the same way as the upper cover plate 18 without gluing to the core 12; Attachment using thorns is also an option.
Wie deutlicher in der Seitenansicht des Kerns von Fig. 3 zu sehen ist, befinden sich an dessen Vorderseite 14 parallel zu den Nuten 13 zwei schmale Schlitze 22, die einfach durch Einschneiden des Materials des Kerns gebildet sein können. Diese Schlitze sind vorgesehen, um Zungen 23 von in Fig. 2 gezeigten oberen und unteren Traversen 24 aufzunehmen, die als Stranggußprofile aus Kunststoff oder Metall ausgebildet sein können und einerseits der Versteifung des Zwischenbodens 4 dienen können und andererseits als Träger für eine in der Fig. nicht dargestellte metallische Blende dienen können, die die Vorderseite 14 des Kerns komplett überdeckt.As can be seen more clearly in the side view of the core of FIG. 3, there are two narrow slots 22 on its front side 14 parallel to the grooves 13, which slots can be formed simply by cutting the material of the core. These slots are provided to receive tongues 23 of upper and lower cross members 24 shown in FIG. 2, which can be designed as continuous casting profiles made of plastic or metal and on the one hand can serve to stiffen the intermediate floor 4 and on the other hand as a carrier for one in the FIG. Metallic screen, not shown, can be used, which completely covers the front 14 of the core.
Fig. 2 zeigt ferner eine nach unten gerichtete Rippe 25 an der unteren Abdeckplatte 20, die sich in etwa C-förmig um eine im montierten Zustand des Zwischenbodens an die Rückwand des Innenbehälters angrenzende Fläche 26 der unteren Abdeckplatte erstreckt. Wie der Schnitt der Fig. 4 zeigt, ist diese Fläche 26 vorgesehen, um unterhalb von ihr im unteren Teilraum 6 ein elektrisches Gebläse 27 unterzubringen. Die Rippe 25 verhindert, dass Feuchtigkeitstropfen, die sich z.B. durch Kondensation an der unteren Abdeckplatte 20 außerhalb der von der Rippe 25 umschlossenen Fläche 26 bilden könnten, das Gebläse 27 erreichen. Ein entsprechender Schutz des Gebläses 27 vor sich auf der Fläche 26 bildendem Kondensat kann erreicht werden, wenn die Fläche 26 zur Rippe 25 hin abschüssig ist.Fig. 2 also shows a downward rib 25 on the lower cover plate 20, which extends approximately C-shaped around a surface 26 of the lower cover plate adjacent to the rear wall of the inner container in the assembled state of the intermediate base. As the section of FIG. 4 shows, this surface 26 is provided in order to accommodate an electric fan 27 below it in the lower part space 6. The rib 25 prevents moisture drops, e.g. could form by condensation on the lower cover plate 20 outside the surface 26 enclosed by the rib 25, reach the fan 27. Appropriate protection of the fan 27 against condensate forming on the surface 26 can be achieved if the surface 26 is sloping towards the rib 25.
Wie man in Fig. 4 erkennt, erstreckt sich die Führungsnut 16 nicht nur über die Seitenflanken 15 des Kerns 12, sondern auch über dessen Rückseite, und auch an der Rückwand des Innenbehälters 1 ist eine Rippe 28 gebildet, die tragend in die Führungsnut 16 eingreift. Auf diese Weise wird eine hohe Tragfähigkeit des Zwischenbodens 4 erreicht, ohne dass hierfür übermäßige Wandstärken der Abdeckplatten 18, 20 oder des Kerns 12 erforderlich sind. Zur ergänzenden Unterstützung des Zwischenbodens 4 kann wie gezeigt noch eine zusätzliche Rippe 29 am Innenbehälter 1 im Bereich des unteren Teilraums 6 ausgebildet sein, auf der die untere Abdeckplatte 20 aufliegt. As can be seen in FIG. 4, the guide groove 16 extends not only over the side flanks 15 of the core 12, but also over its rear side, and a rib 28 is also formed on the rear wall of the inner container 1, which engages in the guide groove 16 in a load-bearing manner , In this way, a high load-bearing capacity of the intermediate floor 4 is achieved without the need for excessive wall thicknesses of the cover plates 18, 20 or the core 12. For additional support of the intermediate floor 4, as shown, an additional rib 29 can be formed on the inner container 1 in the region of the lower partial space 6, on which the lower cover plate 20 rests.

Claims

Patentansprüche claims
1. Gehäuse für ein Kältegerät, mit einem äußeren Gehäusekasten (1), der einen Innenraum umschließt, und wenigstens einem in dem Innenraum montierten Zwischenboden (4), dadurch gekennzeichnet, dass der Zwischenboden (4) einen vorgeformten Kern (12) aus einem festen Schaummaterial umfasst, der an der Innenwand des Gehäusekastens (1) befestigt ist.1. Housing for a refrigerator, with an outer housing box (1) which encloses an interior, and at least one intermediate floor (4) mounted in the interior, characterized in that the intermediate floor (4) has a preformed core (12) made of a solid Includes foam material which is attached to the inner wall of the housing box (1).
2. Gehäuse nach Anspruch 1 , dadurch gekennzeichnet, dass Zwischenboden (4) auf wenigstens eine Rille oder einen Vorsprung aufgeschoben ist, die/der an der2. Housing according to claim 1, characterized in that the intermediate floor (4) is pushed onto at least one groove or a projection, which / on the
Innenwand des Gehäusekastens (1) gebildet ist.Inner wall of the housing box (1) is formed.
3. Gehäuse nach Anspruch 2, dadurch gekennzeichnet, dass die Rille oder der Vorsprung zur Halterung des Zwischenbodens (4) an der Innenwand des Gehäusekastens (1) an den beiden seitlichen Flanken des Zwischenbodens (4) vorgesehen ist.3. Housing according to claim 2, characterized in that the groove or the projection for holding the intermediate base (4) on the inner wall of the housing box (1) is provided on the two lateral flanks of the intermediate base (4).
4. Gehäuse nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Rille oder der Vorsprung zur Halterung des Zwischenbodens (4) an der Innenwand des Gehäusekastens (1) an den beiden seitlichen Flanken des Kerns (12) vorgesehen sind.4. Housing according to claim 2 or 3, characterized in that the groove or the projection for holding the intermediate base (4) on the inner wall of the housing box (1) on the two lateral flanks of the core (12) are provided.
5. Gehäuse nach Anspruch 1 oder 4, dadurch gekennzeichnet, dass der Kern (12) an seitlichen Flanken (15) beim Einschieben des Zwischenbodens (4) in den Innenraum verformte Noppen aufweist.5. Housing according to claim 1 or 4, characterized in that the core (12) on the side flanks (15) when inserting the intermediate base (4) has deformed knobs in the interior.
6. Gehäuse nach Anspruch 1 , 4 oder 5, dadurch gekennzeichnet, dass ein Dichtband (30) an seitlichen Flanken (15) des Kerns (12) angeordnet ist.6. Housing according to claim 1, 4 or 5, characterized in that a sealing tape (30) on the side flanks (15) of the core (12) is arranged.
7. Gehäuse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Zwischenboden (4) wenigstens eine an der Oberseite (17) und/oder der Vorderseite (14) und/oder der Unterseite des Kerns (12) angeordnete dichte Abdeckplatte (18, 20) aufweist.7. Housing according to one of the preceding claims, characterized in that the intermediate floor (4) at least one on the top (17) and / or Front (14) and / or the underside of the core (12) arranged sealed cover plate (18, 20).
8. Gehäuse nach Anspruch 7, dadurch gekennzeichnet, dass die Abdeckplatte (19, 20) durch eine Steck- oder Klemmverbindung am Kern gehalten ist.8. Housing according to claim 7, characterized in that the cover plate (19, 20) is held by a plug or clamp connection on the core.
9. Gehäuse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass an der Vorderseite des Kerns (12) wenigstens eine Nut zur Aufnahme von Heizeinrichtungen geformt ist.9. Housing according to one of the preceding claims, characterized in that at least one groove for receiving heating devices is formed on the front of the core (12).
10. Gehäuse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass an der Unterseite (20) des Zwischenbodens wenigstens eine Rippe (25) gebildet ist, die eine Fläche (26) der Unterseite umgibt, unter der ein Gebläse angeordnet ist.10. Housing according to one of the preceding claims, characterized in that at least one rib (25) is formed on the underside (20) of the intermediate floor, which surrounds a surface (26) of the underside, under which a fan is arranged.
11. Gehäuse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Kern aus EPS geformt ist. 11. Housing according to one of the preceding claims, characterized in that the core is formed from EPS.
EP02797979A 2001-09-13 2002-09-10 Housing for a refrigeration device Expired - Lifetime EP1430261B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10145140 2001-09-13
DE10145140A DE10145140A1 (en) 2001-09-13 2001-09-13 Housing for a refrigerator
PCT/EP2002/010145 WO2003023299A1 (en) 2001-09-13 2002-09-10 Housing for a refrigeration device

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EP1430261A1 true EP1430261A1 (en) 2004-06-23
EP1430261B1 EP1430261B1 (en) 2013-03-20

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EP02797979A Expired - Lifetime EP1430261B1 (en) 2001-09-13 2002-09-10 Housing for a refrigeration device

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US (1) US8079231B2 (en)
EP (1) EP1430261B1 (en)
CN (1) CN100510588C (en)
CA (1) CA2460393A1 (en)
DE (1) DE10145140A1 (en)
RU (1) RU2263256C2 (en)
WO (1) WO2003023299A1 (en)

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CA2460393A1 (en) 2003-03-20
RU2004106548A (en) 2005-02-27
US20040172964A1 (en) 2004-09-09
DE10145140A1 (en) 2003-04-03
CN1639525A (en) 2005-07-13
CN100510588C (en) 2009-07-08
RU2263256C2 (en) 2005-10-27
WO2003023299A1 (en) 2003-03-20
EP1430261B1 (en) 2013-03-20
US8079231B2 (en) 2011-12-20

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