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EP2165132A2 - Heat-insulating wall for a refrigerating device - Google Patents

Heat-insulating wall for a refrigerating device

Info

Publication number
EP2165132A2
EP2165132A2 EP08760963A EP08760963A EP2165132A2 EP 2165132 A2 EP2165132 A2 EP 2165132A2 EP 08760963 A EP08760963 A EP 08760963A EP 08760963 A EP08760963 A EP 08760963A EP 2165132 A2 EP2165132 A2 EP 2165132A2
Authority
EP
European Patent Office
Prior art keywords
wall
heat
insulating wall
insulating
door
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
EP08760963A
Other languages
German (de)
French (fr)
Other versions
EP2165132B1 (en
Inventor
Helmut Hanke
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 EP2165132A2 publication Critical patent/EP2165132A2/en
Application granted granted Critical
Publication of EP2165132B1 publication Critical patent/EP2165132B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F25D23/02—Doors; Covers
    • F25D23/028—Details
    • 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
    • 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
    • F25D23/02—Doors; Covers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/31—Application of doors, windows, wings or fittings thereof for domestic appliances for refrigerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/02—Details of doors or covers not otherwise covered
    • F25D2323/024—Door hinges

Definitions

  • the invention relates to a heat insulating wall for a refrigerator according to the preamble of claim 1.
  • a wall may be, for example, a door or a housing wall of a refrigerator or freezer.
  • these walls In the field of refrigerators, these walls usually have a solid outer wall formed of sheet metal and a plastic inner wall which is deep drawn and which are joined at their edges to define a cavity.
  • Cavity is filled with a foam material to form an insulating layer. This structure is quite simple, yet high demands are placed on these walls, which arise from the field of application and the competition.
  • the heat insulating walls which are used in refrigerators, must have a certain stability, since they must be suitable for carrying an often considerable weight, because on the inner walls of the housing walls of refrigerators usually the shelves are fixed, on which the refrigerated goods is stored. Also on the refrigerator door often adapted to the inner wall door racks are mounted, which allow the storage of small parts or bottles on the inside of the door.
  • Household appliances using heat-insulating walls are under enormous price pressure.
  • the devices and thus their components must therefore always be cheaper both in material costs and assembly. Consequently, one strives to keep the proportion of material as low as possible. Therefore, as thin as possible sheets are used for the outer walls.
  • these relatively unstable walls are provided with stiffening rails that extend along the entire walls or along particularly critical areas, such as the attachment regions of compartments or seats.
  • these rails must be integrated into the wall or housing wall structure and fixed there, which in turn means an effort that one would like to avoid.
  • the invention has for its object to provide a heat insulating wall for a refrigeration device, which has sufficient stiffness with the least possible use of materials.
  • planar components of the heat-insulating wall are profiled at least in certain regions.
  • the profiling relates to supporting parts such as the outer and / or inner wall, which can gain an increased rigidity by the profiling, so that with low material requirements sufficient stability of the heat insulating wall can be achieved without additional stiffening elements, such as stiffening rails are used have to. Due to the profiling, extremely thin, material-saving exterior and / or interior walls can be used, which nevertheless are able to build a rigid wall, which is suitable to serve as a support for the carriers of refrigerated goods shelves, such as shelves or door shelves.
  • metal sheets of the heat-insulating wall are profiled at least in some areas.
  • the surface of the outer wall of the refrigerator housing or the refrigerator door made of metal, steel or stainless steel, shaped. These metal sheets are particularly suitable for the application of surface profiles.
  • the profiling can be realized particularly advantageous by means of profile rolling in the context of the manufacturing process of the sheets.
  • a profiling of the outer wall has the additional advantage that the refrigerator can thereby be added to an individual note in terms of aesthetic considerations.
  • elongate profiles are used which extend over the height of the wall.
  • the heat-insulated wall gets, in particular in the direction of gravity, which is the main direction of the force caused by the refrigerated goods stored on the wall forces is an increased inherent rigidity.
  • the profiled wall is designed as a trapezoidal or rectangular wall. That is, the profile causes at least partially a flat pattern on the wall, which is similar in cross-section of the wall of a canted line, which consists of juxtaposed trapezoidal or rectangular elements.
  • the trapezoidal design of the profiling gives the wall a particularly high rigidity.
  • the profiling takes place in the form of waves, so that the profiled wall in cross section shows a wavy line, ie a curved line.
  • This form of profiling results in a somewhat less stable wall than the profiling with angular lines, but the wall is easier to clean because a shaft surface has no edges but is relatively smooth.
  • At least 60% of a wall surface is profiled. That is, in a majority of the wall surface of an outer and / or inner wall, the inherent rigidity is increased, so that can be dispensed with additional stiffening elements.
  • the entire wall can take over the functionality of a load-bearing wall, it is also stable enough to attach refrigerated goods racks to her, although it can be worked with an extremely thin wall thickness.
  • the edge regions of the wall surface are not profiled, so that on this smooth surface simple connections of the walls with each other or with other components of the heat insulating wall can be made.
  • the profiles extend over the entire wall surface. This is often the simplest in manufacturing, since, for example, when introducing the profiling by means of rolling, the entire wall can be easily guided by the same profile roll, which is ideally designed so that they can profile different lengths of different refrigeration device models.
  • the profilings are located predominantly in the areas of the outer and / or inner wall of a heat-insulating wall, to the attachments ofmégutablagen, such as shelves or door shelves or attack similar. Increased wall stability is often required in these areas in order to cushion deformation of the heat-insulating wall due to the force of the weight of the loaded refrigerated goods trays.
  • the wall of their material thickness must be chosen so strong that their inherent rigidity is sufficient to ensure the carrying function of the wall itself or this can over
  • the profiling here provides additional rigidity in critical areas.
  • the wall is profiled only partially, the rest of the wall is smooth and therefore easy to clean.
  • FIG. 1 is a schematic sectional view of a door outer wall according to the prior art
  • Fig. 2 is a schematic sectional view of a profiled door outer wall
  • Fig. 3 is a schematic view of a profiled refrigerator door.
  • Fig. 1 shows a section through a refrigerator door 1 of the prior art, which has a molded by deep drawing plastic inner wall 2, a heat insulating layer 3 and an outer wall 4 connected to the inner wall 2 to a door body.
  • the outer wall 4 formed of sheet steel is joined to the inner wall 2 by the wetting action of the foaming of polyethane, in which bounded by the inner wall 2 and the outer wall 4 space, insulating layer 3 to form a dimensionally stable structure.
  • stiffening rails 5a, 5b, 5c and 5d are formed, which give the refrigerator door 1 sufficient stability, although both the plastic inner wall 2 and the steel outer wall 4 are extremely thin and material-saving design.
  • This known structure, the invention is based.
  • the refrigerator door 1 according to the invention shown in Fig. 2 is also constructed of a plastic inner wall 2, an outer door panel 4 formed of sheet metal and a Schaumisolier Mrs 3 introduced between these.
  • the stiffening elements 5a to d shown in FIG. 1 can be dispensed with, since the door outer wall 4 has profilings 6 which give the refrigerator door 1 the required inherent rigidity.
  • the profiling of the outer wall 4 can be produced for example in the context of the manufacturing process by profiling rollers, which press the rectangular profiles in the steel sheet of the outer wall 4.
  • the profilings 6 extend over the entire length of the outer wall 4 of the refrigerator door 1.
  • This extended course of the elongate rectangular profiles 6 results in a profile element 7 which encompasses the entire outer wall 4 of the refrigerator door 1.
  • the outer wall 4 and thus the entire refrigerator door 1 in the direction of gravity is imparted by the wall thickness of the outer wall 4 alone conditional, significantly exceeding rigidity and stability, which ensures that attached to the door inner wall 2, not showndegutablagen can be, without the refrigerator door 1 is thereby overloaded.

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)
  • Thermal Insulation (AREA)

Abstract

The invention relates to a heat-insulating wall (1) for a refrigerating device, comprising an exterior wall (4) and an interior wall (2) that surround a cavity comprising a heat-insulating layer (3). The invention is characterised in that the exterior wall (4) and/or the interior wall (2) are equipped with, between the lateral edges thereof, at least in parts, a profile element (7) that is used to increase the rigidity of the walls.

Description

Wärmeisolierende Wand für ein Kältegerät Heat-insulating wall for a refrigeration appliance
Die Erfindung betrifft eine Wärme isolierende Wand für ein Kältegerät nach dem Oberbegriff von Anspruch 1. Bei einer derartigen Wand kann es sich beispielsweise um eine Tür oder eine Gehäusewand eines Kühl- oder Gefrierschrankes handeln.The invention relates to a heat insulating wall for a refrigerator according to the preamble of claim 1. Such a wall may be, for example, a door or a housing wall of a refrigerator or freezer.
Im Bereich der Kältegeräte haben diese Wände üblicherweise eine aus Blech geformte feste Außenwand und eine aus Kunststoff tiefgezogene Innenwand, welche an ihren Rändern miteinander verbunden sind, um einen Hohlraum zu begrenzen. DieserIn the field of refrigerators, these walls usually have a solid outer wall formed of sheet metal and a plastic inner wall which is deep drawn and which are joined at their edges to define a cavity. This
Hohlraum wird mit einem Schaumstoffmaterial ausgefüllt, um eine Isolationsschicht zu bilden. Dieser Aufbau ist recht einfach, dennoch werden an diese Wände hohe Anforderungen gestellt, die sich aus dem Einsatzbereich und dem Wettbewerb ergeben.Cavity is filled with a foam material to form an insulating layer. This structure is quite simple, yet high demands are placed on these walls, which arise from the field of application and the competition.
Die Wärme isolierenden Wände, welche in Kältegeräten Verwendung finden, müssen eine gewisse Stabilität aufweisen, da sie zum Tragen eines oftmals beträchtlichen Gewichtes geeignet sein müssen, denn an den Innenwänden der Gehäusewände von Kältegeräten werden üblicherweise die Fachböden befestigt, auf denen das Kühlgut gelagert wird. Auch an der Kältegerätetür werden häufig an die Innenwand angepasste Türabstellerelemente angebracht, welche das Lagern von Kleinteilen oder Flaschen an der Innenseite der Tür erlauben.The heat insulating walls, which are used in refrigerators, must have a certain stability, since they must be suitable for carrying an often considerable weight, because on the inner walls of the housing walls of refrigerators usually the shelves are fixed, on which the refrigerated goods is stored. Also on the refrigerator door often adapted to the inner wall door racks are mounted, which allow the storage of small parts or bottles on the inside of the door.
Bei Haushaltsgeräten, bei denen die Wärme isolierenden Wände eingesetzt werden, herrscht ein enormer Preisdruck. Die Geräte und damit auch ihre Bestandteile, müssen deshalb sowohl in den Materialkosten als auch der Montage immer günstiger werden. Demzufolge ist man bestrebt den Materialanteil möglichst gering zu halten. Deshalb werden möglichst dünne Bleche für die Außenwände verwendet. Um den Wänden dennoch die erforderliche Stabilität zu verleihen werden diese relativ instabilen Wände mit Versteifungsschienen, welche sich entlang der ganzen Wände oder entlang besonders neuralgischer Bereiche, wie den Befestigungsregionen von Fächern oder Aufnahmen erstrecken, versehen. Diese Schienen müssen jedoch in den Wand- oder Gehäusewandaufbau integriert und dort befestigt werden, was wiederum einen Aufwand bedeutet, den man gerne vermeiden würde. Der Erfindung liegt die Aufgabe zugrunde, eine Wärme isolierende Wand für ein Kältegerät bereit zu stellen, welche bei möglichst geringem Materialeinsatz eine ausreichende Steifigkeit aufweist.Household appliances using heat-insulating walls are under enormous price pressure. The devices and thus their components must therefore always be cheaper both in material costs and assembly. Consequently, one strives to keep the proportion of material as low as possible. Therefore, as thin as possible sheets are used for the outer walls. However, to provide the walls with the required stability, these relatively unstable walls are provided with stiffening rails that extend along the entire walls or along particularly critical areas, such as the attachment regions of compartments or seats. However, these rails must be integrated into the wall or housing wall structure and fixed there, which in turn means an effort that one would like to avoid. The invention has for its object to provide a heat insulating wall for a refrigeration device, which has sufficient stiffness with the least possible use of materials.
Gelöst wird die Aufgabe gemäß der Erfindung durch eine Wärme isolierende Wand für ein Kältegerät mit den Merkmalen von Anspruch 1.The object is achieved according to the invention by a heat-insulating wall for a refrigerator with the features of claim 1.
Erfindungsgemäß sind flächige Bestandteile der Wärme isolierenden Wand wenigstens bereichsweise profiliert. Die Profilierung betrifft tragende Teile wie die Außen- und/oder Innenwand, welche durch die Profilierung eine erhöhte Steifigkeit erlangen können, so dass bei geringem Materialbedarf eine ausreichende Stabilität der Wärme isolierenden Wand erreicht werden kann, ohne dass zusätzliche Versteifungselemente, wie Versteifungsschienen, verwendet werden müssen. Aufgrund der Profilierung können äußerst dünne, Material sparende Außen- und/oder Innenwände verwendet werden, welche dennoch in der Lage sind eine steife Wand aufzubauen, welche geeignet ist, als Halterung für die Träger von Kühlgutablagen, wie Fachböden oder Türabstellern, zu dienen.According to the invention, planar components of the heat-insulating wall are profiled at least in certain regions. The profiling relates to supporting parts such as the outer and / or inner wall, which can gain an increased rigidity by the profiling, so that with low material requirements sufficient stability of the heat insulating wall can be achieved without additional stiffening elements, such as stiffening rails are used have to. Due to the profiling, extremely thin, material-saving exterior and / or interior walls can be used, which nevertheless are able to build a rigid wall, which is suitable to serve as a support for the carriers of refrigerated goods shelves, such as shelves or door shelves.
Vorzugsweise sind Metallbleche der Wärme isolierenden Wand wenigstens bereichsweise profiliert. Oftmals ist die Oberfläche der Außenwand des Kältegerätegehäuses oder der Kältegerätetür aus Metall, Stahl oder Edelstahl, geformt. Diese Metallbleche eignen sich besonders gut für das Einbringen von Oberflächenprofilen. Die Profilierung kann in Rahmen des Herstellungsprozesses der Bleche besonders vorteilhaft mittels Profilwalzen realisiert werden. Eine Profilierung der Außenwand hat darüber hinaus den Vorteil, dass dem Kältegerät hierdurch eine individuelle Note hinsichtlich ästhetischer Gesichtspunkte hinzugefügt werden kann.Preferably, metal sheets of the heat-insulating wall are profiled at least in some areas. Often, the surface of the outer wall of the refrigerator housing or the refrigerator door made of metal, steel or stainless steel, shaped. These metal sheets are particularly suitable for the application of surface profiles. The profiling can be realized particularly advantageous by means of profile rolling in the context of the manufacturing process of the sheets. A profiling of the outer wall has the additional advantage that the refrigerator can thereby be added to an individual note in terms of aesthetic considerations.
In einer bevorzugten Ausführungsform werden lang gestreckte Profilierungen verwendet, welche sich über die Höhe der Wand erstrecken. Dadurch bekommt die Wärme isolierte Wand, insbesondere in Richtung der Schwerkraft, welche die Hauptwirkrichtung der durch die an der Wand befestigten Kühlgutablagen verursachten Kräfte ist eine erhöhte Eigensteifigkeit. In einer bevorzugten Ausführungsform ist die profilierte Wand als Trapez- oder Rechteckwand ausgebildet. Das heißt, die Profilierung bewirkt wenigstens bereichsweise ein flächiges Muster auf der Wand, das im Querschnitt der Wand einer gekanteten Linie gleicht, welche aus aneinander gereihten trapezförmigen oder rechteckigen Elementen besteht. Insbesondere die trapezförmige Gestaltung der Profilierung verleiht der Wand eine besonders hohe Steifigkeit.In a preferred embodiment, elongate profiles are used which extend over the height of the wall. As a result, the heat-insulated wall gets, in particular in the direction of gravity, which is the main direction of the force caused by the refrigerated goods stored on the wall forces is an increased inherent rigidity. In a preferred embodiment, the profiled wall is designed as a trapezoidal or rectangular wall. That is, the profile causes at least partially a flat pattern on the wall, which is similar in cross-section of the wall of a canted line, which consists of juxtaposed trapezoidal or rectangular elements. In particular, the trapezoidal design of the profiling gives the wall a particularly high rigidity.
In einer weiteren vorteilhaften Ausführungsform erfolgt die Profilierung in Form von Wellen, so dass die profilierte Wand im Querschnitt eine Wellenlinie, also eine gekrümmte Linie zeigt. Diese Form der Profilierung ergibt eine zwar etwas weniger stabile Wand als die Profilierung mit kantigen Linien, dafür ist die Wand aber reinigungsfreundlicher, da eine Wellenoberfläche keine Kanten aufweist sondern relativ glatt ist.In a further advantageous embodiment, the profiling takes place in the form of waves, so that the profiled wall in cross section shows a wavy line, ie a curved line. This form of profiling results in a somewhat less stable wall than the profiling with angular lines, but the wall is easier to clean because a shaft surface has no edges but is relatively smooth.
Vorzugsweise ist wenigstens 60 % einer Wandoberfläche profiliert. Das heißt, bei einem Großteil der Wandoberfläche einer Außen- und/oder Innenwand ist die Eigensteifigkeit erhöht, so dass auf zusätzliche Versteifungselemente verzichtet werden kann. Damit kann die gesamte Wand die Funktionalität einer tragenden Wand übernehmen, sie ist außerdem stabil genug um Kühlgutablagen an ihr zu befestigen, obwohl mit einer äußerst dünnen Wandstärke gearbeitet werden kann. Vorzugsweise sind die Randbereiche der Wandoberfläche nicht profiliert, so dass an dieser glatten Fläche einfacher Verbindungen der Wände untereinander oder mit anderen Bauteilen der Wärme isolierenden Wand hergestellt werden können.Preferably, at least 60% of a wall surface is profiled. That is, in a majority of the wall surface of an outer and / or inner wall, the inherent rigidity is increased, so that can be dispensed with additional stiffening elements. Thus, the entire wall can take over the functionality of a load-bearing wall, it is also stable enough to attach refrigerated goods racks to her, although it can be worked with an extremely thin wall thickness. Preferably, the edge regions of the wall surface are not profiled, so that on this smooth surface simple connections of the walls with each other or with other components of the heat insulating wall can be made.
Vorzugsweise erstrecken sich die Profilierungen über die gesamte Wandoberfläche. Dies ist in der Fertigung oftmals am einfachsten, da beispielsweise beim Einbringen der Profilierung mittels Walztechnik die gesamte Wand einfach durch die selbe Profilwalze geführt werden kann, welche idealer Weise so ausgelegt ist, dass sie verschieden lange Wände unterschiedlicher Kältegerätemodelle profilieren kann.Preferably, the profiles extend over the entire wall surface. This is often the simplest in manufacturing, since, for example, when introducing the profiling by means of rolling, the entire wall can be easily guided by the same profile roll, which is ideally designed so that they can profile different lengths of different refrigeration device models.
In einer weiteren bevorzugten Ausführungsform befinden sich die Profilierungen vorwiegend in den Bereichen der Außen- und/oder Innenwand einer Wärme isolierenden Wand, an die Befestigungen von Kühlgutablagen, wie Fachböden oder Türabstellern oder ähnlichem angreifen. In diesen Bereichen ist oftmals eine erhöhte Wandstabilität nötig, um eine Verformung der Wärme isolierenden Wand durch die Krafteinwirkung des Gewichts der beladenen Kühlgutablagen abzufangen. In diesem Fall muss die Wand von ihrer Materialstärke so stark gewählt werden, dass ihre Eigensteifigkeit ausreicht, um die Tragefunktion der Wand an sich zu gewährleisten bzw. diese kann überIn a further preferred embodiment, the profilings are located predominantly in the areas of the outer and / or inner wall of a heat-insulating wall, to the attachments of Kühlgutablagen, such as shelves or door shelves or attack similar. Increased wall stability is often required in these areas in order to cushion deformation of the heat-insulating wall due to the force of the weight of the loaded refrigerated goods trays. In this case, the wall of their material thickness must be chosen so strong that their inherent rigidity is sufficient to ensure the carrying function of the wall itself or this can over
Versteifungselemente bewirkt werden, die Profilierung bietet hier eine zusätzliche Steifigkeit in neuralgischen Bereichen. Hierdurch ist die Wand nur bereichsweise profiliert, der Rest der Wand ist glatt und damit pflegeleichter.Stiffening elements are effected, the profiling here provides additional rigidity in critical areas. As a result, the wall is profiled only partially, the rest of the wall is smooth and therefore easy to clean.
Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus den Unteransprüchen im Zusammenhang mit der Beschreibung eines Ausführungsbeispiels, das anhand der Zeichnung eingehend erläutert wird.Further details and advantages of the invention will become apparent from the subclaims in connection with the description of an embodiment which is explained in detail with reference to the drawing.
Es zeigen:Show it:
Fig. 1 eine schematische Schnittdarstellung einer Türaußenwand gemäß dem Stand der Technik,1 is a schematic sectional view of a door outer wall according to the prior art,
Fig. 2 eine schematische Schnittdarstellung einer profilierten Türaußenwand undFig. 2 is a schematic sectional view of a profiled door outer wall and
Fig. 3 eine schematisierte Ansicht einer profilierten Kühlschranktür.Fig. 3 is a schematic view of a profiled refrigerator door.
Fig. 1 zeigt einen Schnitt durch eine Kühlschranktür 1 des Standes der Technik, welche eine durch Tiefziehen geformte Kunststoffinnenwand 2, eine Wärmeisolationsschicht 3 und eine mit der Innenwand 2 zu einem Türkorpus verbundene Außenwand 4 aufweist. Die aus Stahlblech geformte Außenwand 4 ist durch die benetzende Wirkung der durch Aufschäumen von Polyethan, in dem von der Innenwand 2 und der Außenwand 4 begrenzten Zwischenraum, gebildeten Isolationsschicht 3 mit der Innenwand 2 zu einem formsteifen Gebilde verbunden. In die geschäumte Isolationsschicht 3 sind üblicherweise Versteifungsschienen 5a, 5b, 5c und 5d eingeformt, die der Kühlschranktür 1 ausreichende Stabilität vermitteln, obwohl sowohl die Kunststoffinnenwand 2 als auch die Stahlaußenwand 4 extrem dünn und Material sparend ausgebildet sind. Dieser bekannte Aufbau, liegt der Erfindung zugrunde. Er ist vor allem deshalb verbesserungsbedürftig, da das Einbringen von Verstärkungselementen wie der Stahlschienen 5a, b, c und d im Fertigungsprozess relativ aufwändig ist und damit die Kosten einer solchen Kühlschranktür 1 unnötig in die Höhe treibt.Fig. 1 shows a section through a refrigerator door 1 of the prior art, which has a molded by deep drawing plastic inner wall 2, a heat insulating layer 3 and an outer wall 4 connected to the inner wall 2 to a door body. The outer wall 4 formed of sheet steel is joined to the inner wall 2 by the wetting action of the foaming of polyethane, in which bounded by the inner wall 2 and the outer wall 4 space, insulating layer 3 to form a dimensionally stable structure. In the foamed insulation layer 3 usually stiffening rails 5a, 5b, 5c and 5d are formed, which give the refrigerator door 1 sufficient stability, although both the plastic inner wall 2 and the steel outer wall 4 are extremely thin and material-saving design. This known structure, the invention is based. He is therefore in need of improvement, because the introduction of reinforcing elements such as the steel rails 5a, b, c and d in the manufacturing process is relatively complex and thus unnecessarily drives the cost of such a refrigerator door 1 in the air.
Die in Fig. 2 dargestellte erfindungsgemäße Kühlschranktür 1 ist ebenfalls aus einer Kunststoffinnenwand 2, einer aus Metallblech geformten Türaußenwand 4 und einer zwischen diese eingebrachten Schaumisolierschicht 3 aufgebaut. Bei dieser Kühlschranktür 1 kann jedoch auf die in der Fig. 1 gezeigten Versteifungselemente 5a bis d verzichtet werden, da die Türaußenwand 4 Profilierungen 6 aufweist, welche der Kühlschranktür 1 die erforderliche Eigensteifigkeit verleihen. Die Profilierung der Außenwand 4 kann beispielsweise im Rahmen des Herstellverfahrens durch Profilierwalzen erzeugt werden, welche die Rechteckprofile in das Stahlblech der Außenwand 4 drücken.The refrigerator door 1 according to the invention shown in Fig. 2 is also constructed of a plastic inner wall 2, an outer door panel 4 formed of sheet metal and a Schaumisolierschicht 3 introduced between these. In the case of this refrigerator door 1, however, the stiffening elements 5a to d shown in FIG. 1 can be dispensed with, since the door outer wall 4 has profilings 6 which give the refrigerator door 1 the required inherent rigidity. The profiling of the outer wall 4 can be produced for example in the context of the manufacturing process by profiling rollers, which press the rectangular profiles in the steel sheet of the outer wall 4.
Die Profilierungen 6 verlaufen, wie auf der Fig. 3 zu sehen ist, über die gesamte Länge der Außenwand 4 der Kühlschranktür 1. Dieser ausgedehnte Verlauf der langgestreckten Rechteckprofile 6 ergibt ein Profilelement 7, das die gesamte Außenwand 4 der Kühlschranktür 1 umfasst. Durch diese Profilierungen 6 wird der Außenwand 4 und damit der gesamten Kühlschranktür 1 in Richtung der Schwerkraft eine über die durch die Wandstärke der Außenwand 4 allein bedingte, deutlich hinausgehende Steifigkeit und Stabilität verliehen, die gewährleistet, dass an der Türinnenwand 2 hier nicht dargestellte Kühlgutablagen angebracht werden können, ohne dass die Kühlschranktür 1 dadurch überlastet wird. As can be seen in FIG. 3, the profilings 6 extend over the entire length of the outer wall 4 of the refrigerator door 1. This extended course of the elongate rectangular profiles 6 results in a profile element 7 which encompasses the entire outer wall 4 of the refrigerator door 1. Through these profiling 6, the outer wall 4 and thus the entire refrigerator door 1 in the direction of gravity is imparted by the wall thickness of the outer wall 4 alone conditional, significantly exceeding rigidity and stability, which ensures that attached to the door inner wall 2, not shown Kühlgutablagen can be, without the refrigerator door 1 is thereby overloaded.
Bezugszeichenliste:LIST OF REFERENCE NUMBERS
1 Kuhlschranktur1 refrigerator
2 Innenwand2 inner wall
3 Isolierschicht3 insulating layer
4 Außenwand4 outer wall
5 Versteifungsschiene5 stiffening rail
6 Rechteckprofilierung6 Rectangular profiling
7 Profilelement 7 profile element

Claims

Patentansprüche claims
1 . Wärmeisolierende Wand (1 ) für ein Kältegerät, mit einer Außenwand (4) und einer Innenwand (2), die einen Hohlraum umgeben, welcher eine Wärmeisolationsschicht (3) aufweist, dadurch gekennzeichnet, dass die Außenwand (4) und/oder die Innenwand (2) zwischen ihren seitlichen Kanten zumindest bereichsweise Eigensteifigkeit zu erhöhenden Profilelement (7) ausgestattet sind.1 . Heat-insulating wall (1) for a refrigeration device, having an outer wall (4) and an inner wall (2) surrounding a cavity, which has a heat-insulating layer (3), characterized in that the outer wall (4) and / or the inner wall ( 2) between their lateral edges at least partially inherent rigidity to be increased profile element (7) are equipped.
2. Wärmeisolierende Wand nach Anspruch 1 , dadurch gekennzeichnet, dass die wärmeisolierende Wand (1 ) als Tür eines Einbaukältegeräts ausgebildet ist.2. Heat-insulating wall according to claim 1, characterized in that the heat-insulating wall (1) is designed as a door of a built-in refrigerator.
3. Wärmeisolierende Wand nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass eine Mehrzahl von Profilelementen (7) vorgesehen sind.3. Heat-insulating wall according to claim 1 or 2, characterized in that a plurality of profile elements (7) are provided.
4. Wärmeisolierende Wand nach Anspruch 3, dadurch gekennzeichnet, dass die Mehrzahl von Profilelementen (7) aneinander anschließen und die Oberfläche der wärmeisolierenden Wand (1 ) zwischen deren seitlichen Kanten bildet.4. A heat-insulating wall according to claim 3, characterized in that the plurality of profile elements (7) adjoin one another and forms the surface of the heat-insulating wall (1) between the lateral edges thereof.
5. Wärmeisolierende Wand (1 ) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Außenwand (4) und/oder die Innenwand (2) aus Metall gebildet ist.5. Heat insulating wall (1) according to one of claims 1 to 4, characterized in that the outer wall (4) and / or the inner wall (2) is formed of metal.
6. Wärmeisolierende Wand (1 ) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Außenwand (4) und/oder die Innenwand (2) aus Kunststoff gebildet sind.6. Heat-insulating wall (1) according to one of claims 1 to 5, characterized in that the outer wall (4) and / or the inner wall (2) are formed from plastic.
7. Wärmeisolierende Wand (1 ) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das Profilelement (7) langgestreckte Profilierungen (6) aufweist, welche bei eingebauter Wand (1 ) in vertikaler Richtung verlaufen.7. heat-insulating wall (1) according to one of claims 1 to 6, characterized in that the profile element (7) elongated profilings (6) has, which run in built-in wall (1) in the vertical direction.
8. Wärmeisolierende Wand (1 ) nach Anspruch 7, dadurch gekennzeichnet, dass die Profilierungen (6) im Querschnitt kantige Linien bilden.8. Heat insulating wall (1) according to claim 7, characterized in that the profilings (6) form angular lines in cross section.
9. Wärmeisolierende Wand (1 ) nach Anspruch 7, dadurch gekennzeichnet, dass die Profilierungen (6) im Querschnitt gekrümmte Linien bilden.9. heat-insulating wall (1) according to claim 7, characterized in that the profilings (6) form curved lines in cross-section.
10. Wärmeisolierende Wand (1 ) nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Profilelemente (7) sich über wenigstens 60% einer10. A heat insulating wall (1) according to any one of claims 1 to 9, characterized in that the profile elements (7) over at least 60% of a
Wandoberfläche der Außen (4)- und/oder Innenwand (2) erstrecken.Wall surface of the outer (4) - and / or inner wall (2) extend.
1 1 . Wärmeisolierende Wand (1 ) nach Anspruch 10, dadurch gekennzeichnet, dass die Profilelemente (7) sich über die gesamte Höhe der Wandoberfläche der Außen (4)- und/oder Innenwand (2) erstrecken.1 1. Heat insulating wall (1) according to claim 10, characterized in that the profile elements (7) extend over the entire height of the wall surface of the outer (4) - and / or inner wall (2).
12. Wärmeisolierende Wand (1 ) nach Anspruch 1 , dadurch gekennzeichnet, dass die Profilelemente (7) sich im Bereich der Befestigung von Kühlgutablagen befinden. 12. Heat-insulating wall (1) according to claim 1, characterized in that the profile elements (7) are located in the region of the attachment of Kühlgutablagen.
EP08760963A 2007-06-25 2008-06-12 Heat-insulating refrigerator door Not-in-force EP2165132B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007029184A DE102007029184A1 (en) 2007-06-25 2007-06-25 Heat-insulating wall for a refrigeration appliance
PCT/EP2008/057428 WO2009000671A2 (en) 2007-06-25 2008-06-12 Heat-insulating wall for a refrigerating device

Publications (2)

Publication Number Publication Date
EP2165132A2 true EP2165132A2 (en) 2010-03-24
EP2165132B1 EP2165132B1 (en) 2013-02-27

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ID=40092146

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08760963A Not-in-force EP2165132B1 (en) 2007-06-25 2008-06-12 Heat-insulating refrigerator door
EP08761253A Not-in-force EP2158436B1 (en) 2007-06-25 2008-06-20 Heat-insulating door for a built-in refrigerating device

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP08761253A Not-in-force EP2158436B1 (en) 2007-06-25 2008-06-20 Heat-insulating door for a built-in refrigerating device

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US (2) US20100187241A1 (en)
EP (2) EP2165132B1 (en)
CN (3) CN101743450A (en)
DE (1) DE102007029184A1 (en)
RU (2) RU2010100937A (en)
WO (2) WO2009000671A2 (en)

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Also Published As

Publication number Publication date
EP2165132B1 (en) 2013-02-27
RU2010100937A (en) 2011-07-27
RU2010100935A (en) 2011-07-27
CN101680705B (en) 2012-11-28
WO2009000671A3 (en) 2009-05-28
WO2009000758A3 (en) 2009-05-28
US20100187241A1 (en) 2010-07-29
WO2009000671A2 (en) 2008-12-31
CN101680705A (en) 2010-03-24
EP2158436B1 (en) 2012-08-29
EP2158436A2 (en) 2010-03-03
CN104697280A (en) 2015-06-10
US20100180627A1 (en) 2010-07-22
CN101743450A (en) 2010-06-16
WO2009000758A2 (en) 2008-12-31
DE102007029184A1 (en) 2009-01-08

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