EP1846707B1 - Refrigerator - Google Patents
Refrigerator Download PDFInfo
- Publication number
- EP1846707B1 EP1846707B1 EP06725308A EP06725308A EP1846707B1 EP 1846707 B1 EP1846707 B1 EP 1846707B1 EP 06725308 A EP06725308 A EP 06725308A EP 06725308 A EP06725308 A EP 06725308A EP 1846707 B1 EP1846707 B1 EP 1846707B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- inner housing
- cooling air
- profile
- shaped part
- refrigerating appliance
- 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.)
- Active
Links
- 238000001816 cooling Methods 0.000 claims abstract description 57
- 239000006260 foam Substances 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims abstract 2
- 239000012774 insulation material Substances 0.000 claims 1
- 239000011810 insulating material Substances 0.000 abstract description 2
- 239000011796 hollow space material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000005057 refrigeration Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 229920006328 Styrofoam Polymers 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 239000008261 styrofoam Substances 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Images
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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
- F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
-
- 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
- F25D2317/065—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 air return
- F25D2317/0653—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 air return through the mullion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts
-
- 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
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/04—Refrigerators with a horizontal mullion
Definitions
- the invention relates to a refrigerator according to the preamble of claim 1.
- a refrigerator is for example from the US-A-3 104 533 known.
- Such refrigerators which are also referred to as no-frost refrigerators, are known in the art. They usually have a arranged outside of the interior, ventilated by a fan refrigerant, such as an evaporator, is sucked out of the interior of the sucked air to cool them and to dry by condensation, the thus obtained dry cooling air Interior is supplied by means of a cooling air duct.
- the cooling air duct is usually, such as in the Fig. 2 of the DE 39 32 449 C2 shown, embedded in a heat-insulating, arranged between the outer housing and the inner housing foam structure, in order not to separately and costly isolate it against the inner housing.
- the invention is therefore an object of the invention to provide a refrigeration device of the type mentioned above with an arranged between an outer casing and an inner housing cooling air duct, which can be made easier to manufacture and therefore less expensive.
- the cooling air channel is formed from a molded part of insulating material, such as a rigid polystyrene foam, and a closed rear wall element, wherein the molded part rests against an outer side of the inner housing and thus the inner housing and thus the inner space against the cooling air duct heat-insulated.
- a complete embedding of the cooling air duct in a located between the outer and inner casings heat-insulating foam structure is therefore eliminated, so that can be dispensed with the aforementioned time-consuming and costly preparatory work to this and the refrigeration device can thus produce cheaper.
- Another advantage of the refrigerator according to the invention lies in the spatial proximity of the cooling air duct to the inner housing or to the interior. By this arrangement, the heat input is reduced in the cooling air duct, thus reducing the energy consumption and thus the operating costs of the refrigerator.
- the rear wall element is designed as a U-profile with two profile legs contacting the inner housing. This gives the possibility to form the cooling air channel on a flat wall of the inner housing.
- the Rothbin includes the cooling air duct at least one support element which is arranged between the inside of a profile back of the U-profile and the profile back facing portion of the inner housing.
- a relatively high pressure is created during the expansion of the foam, which in particular also rests on the back of the U-profile and can thus lead to a deformation of the channel and thus to a reduction of its cross section.
- Such a reduction of the channel cross section counteracts the support element.
- the supporting effect is particularly effective when the support member extends over the entire length of the cooling air passage.
- the support element preferably extends in the flow direction along a center line of the cooling air duct.
- the molded part is formed as an elongated plate, the longitudinal edges abut each one of the leg inner sides of the U-profile, so as to isolate the cooling air channel over its entire cross-section against the interior.
- the elongate plate and the support element are integrally connected, realized in the form of a T-profile or an E-profile.
- a T-profile or an E-profile By realizing the support element as a T-profile or as an E-profile, two or three adjacent cooling air ducts can be produced in a simple manner in combination with the rear wall element.
- the support element is formed in cross-section in the manner of a comb, resulting from the comb gaps a plurality of cooling air channels.
- a particularly intensive and uniform support of the rear wall element succeeds
- the elongated plate webs are angled, which can also serve to support the rear wall element or to facilitate its positioning.
- the outer sides of the webs are spaced from the adjacent leg inner sides of the U-profile, since in such a position, the webs can support the U-profile backs more effective.
- the inner housing is provided at least with a mark indicating an intended mounting position of the molded part on the inner housing. As a result, assembly of the molded part is facilitated on the inner housing.
- the rear wall element preferably on a side facing the molding, is provided with a positioning aid to bring the rear wall element easily, quickly and reliably in the desired position ,
- the U-profile can be fixed to the inner housing, can be provided in a further preferred embodiment of the invention that the U-profile is provided in the region of its leg ends with a flange.
- the molded part and at corresponding points, the inner housing is provided with air passage openings.
- the refrigeration device according to the invention is preferably a refrigeration device in no-frost technology, which is preferably designed as a household refrigeration appliance. It may be a refrigerator or freezer or a so-called. Refrigerated / freezer combination device.
- FIG. 1 is a generally occupied by the reference numeral 10 household refrigeration appliance shown.
- the refrigeration device comprises two interior spaces 12 and 14, which are arranged in a heat-insulating housing 20 and each accessible via a heat-insulating door 21 and 23 respectively.
- the upper space 12 is formed as Tiefgefrierraum and the lower space 14 as a cooling space.
- the interiors 12 and 14 are each surrounded by an inner housing shell 16 and 18 as an inner housing, which is formed from a thermoformed plastic plate.
- the between a non-illustrated, formed of sheet metal outer container outer housing and the inner housing shells 16 and 18 located space is filled with a foam 22 made of plastic material, such as a polyurethane.
- the refrigeration device is equipped in a known manner with a known per se and therefore not shown in the drawing compressor cooling unit, of whose individual components here for the sake of simplicity, only a refrigerant evaporator 24 is shown.
- the evaporator 24 is arranged in a chamber 26 in a heat-insulating intermediate bottom 28 located between the inner housing shells 16 and 18.
- a cooling air duct 32 which is formed from a voltage applied to rear walls of the inner housing shells 16 and 18 plate 34 made of styrofoam as a molded part and a U-profile 44 made of plastic material as a rear wall element and passes from there through exhaust openings 54 as air passage openings, which pass through the inner housing shell 16 and the Styrofoam plate 34, in the interior 12.
- the cooling air cooled and dried by the evaporator 24 is discharged in a leading to the cooling chamber 14 portion of the cooling air duct 32 and passes from there via blow-out 56 as Air flow openings, which pass through the Styrofoam plate 34 and the inner housing shell 18, in the interior 14.
- the control of the cooling air supply to the interiors 12 and 14 takes place in a known per se and therefore not shown in the drawing via thermostats and flaps.
- a heater, also not shown, is present in the intermediate floor 28 for deicing the evaporator 24.
- the cooling air channel 32 is formed from the plate 34 and the U-profile 44 by the longitudinal ends 36 of the plate 34 come to the leg inner sides 46 sealingly to the plant.
- the leg ends 48 terminate flush with the side 45 of the plate 34 facing away from the back 45 of the U-profile, so that they come to rest on the inner housing shell 18.
- the legs 47 are provided in the region of their longitudinal ends 48 each with an angled to the outside of the respective leg 47 flange 49 which rests against the rear wall of the inner housing shell 18 and by means of which the U-profile 44 is fixed by means of an adhesive material at this.
- FIG. 3 is one of the Fig. 2 shown analog view of a first embodiment of a refrigeration device according to the invention.
- the refrigeration device comprises a cooling air channel 62, which is constructed from a U-profile 74 as a rear wall element and a T-profile 64 as a molded part.
- the U-profile 74 which is embedded on the outside in a foam 72 made of plastic material, has in each case a flange 79 in the region of its leg ends 78.
- the U-profile 74 is fixed by means of these flanges 79 on a rear wall of an inner housing shell 58 as an inner housing.
- the arranged between the legs 77 of the U-profile 74 T-profile 64 has a profile back 65 and a mid-rib 66. While the longitudinal end 67 of the center rib 66 sealingly abuts the inside of the back 75 of the U-profile 74, the longitudinal ends 68 of the T-profile back 65 come to the leg inner sides 73 of the U-profile 74 sealingly to the system, so that two independent cooling air ducts 82nd and 84 are formed and the central rib 66 the U-profile back 75 is supported.
- the side surface of the profile back 65 facing away from the center rib 66 rests against the rear wall of the inner housing shell 58 and is fixed there by means of an adhesive.
- each of the cooling air lines 82 and 84 of the cooling air channel 62 is provided with exhaust openings 86 as air passage openings, which the back 65 of the T-profile 64 and at appropriate locations the rear wall of the inner housing shell 58th push through.
- FIG. 4 is one of the Fig. 2 corresponding view of a second embodiment of a refrigerator according to the invention shown as a cooling device.
- the refrigeration device comprises a cooling air channel 92 which is formed from a U-profile 104 as a rear wall element and an E-profile 94 as a molded part.
- the outside surrounded by a foam 112 made of plastic material U-profile 104 has a profile back 105 and two legs 107, in the region of which longitudinal ends 108 each have an outwardly directed flange 109 is arranged.
- the flanges 109 abut on a rear wall of an inner housing shell 88 as an inner housing and are fixed for fixing the U-profile 104 on the inner housing shell 88 to the latter by means of an adhesive.
- the E-profile 94 disposed between the legs 107 of the U-profile 104 has a profile back 95, two lateral webs 97 and a mid-rib 96 arranged between these webs 97.
- the voltage applied to the inner housing shell 88 with its free back side E-profile 94 is located with the longitudinal ends 98 of the webs 97 and the longitudinal end 99 of the center rib 96 sealingly against the inside of the profile back 105 and thus forms the cooling air channel 92 with two independent cooling air lines 122 and 124 off.
- each of the cooling air ducts 122 and 124 is provided with blow-out openings 106 as air passage openings which pass through the back 95 of the E-profile 94 and at appropriate locations the inner shell 88 ,
- the rear wall of the inner housing shell 88 is provided with markings in the form of the rear wall passing through rectangular cutouts 114 along the longitudinal edges of the E-profile 94 can be aligned during assembly before it is fixed to the inner housing shell 88 in the desired position.
- the punched-out portions 114 can likewise serve, for example, for holding holding elements of an air-distribution mask which is not shown in the figure and which is arranged in the interior 12 or 14.
- a triangular strip 111 extending in its longitudinal direction is fixed as a positioning aid. After mounting the E-profile 94 on the outside of the rear wall of the inner housing shell 88, this can be placed over the E-profile 94 during installation of the U-profile 104 and placed on the outside of the inner housing shell 88, wherein the outer edges of the longitudinal ends 98 of Profile legs 97 in conjunction with the outer sides of the profile leg 97 facing side surfaces of the triangular strips 111, the U-profile 104 reliably lead to the desired position.
- the triangle strips 111 which are in Fig. 4 drawn off the U-profile 104, of course, could easily be integrally integrated into the contour of the U-profile.
- the triangular strips can also by the strips 80 of the Fig. 3 replaced or combined with these.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Refrigerator Housings (AREA)
Abstract
Description
Die Erfindung betrifft ein Kältegerät gemäß Oberbegriff von Anspruch 1. Ein derartiges Kältegerät ist beispielsweise aus der
Derartige Kältegeräte, die auch als No-Frost-Kältegeräte bezeichnet werden, sind im Stand der Technik bekannt. Sie weisen in der Regel einen außerhalb des Innenraums angeordneten, durch einen Ventilator belüfteten Kälteerzeuger auf, wie beispielsweise einen Verdampfer, an dem aus dem Innenraum abgesaugte Luft vorbeigeführt wird, um diese zu kühlen und mittels Kondensation zu trocknen, wobei die so gewonnene trockene Kühlluft dem Innenraum mittels eines Kühlluftkanals zugeführt wird. Der Kühlluftkanal ist dabei in der Regel, wie beispielsweise in der
Bei der Herstellung eines Kältegerätes mit einem derart angeordneten Kühlluftkanal muss dieser in einer Vormontage vor dem Ausschäumen des zwischen dem Außengehäuse und dem Innengehäuse befindlichen Hohlraums in die gewünschte Position gebracht und mittels Halteelementen in dieser fixiert werden, damit der Kühlluftkanal beim Ausschäumen auch unter den auf ihn durch die Expansion des Schaums wirkenden Kräften in der gewünschten Position verbleibt. Die Vormontage des Kühlluftkanals ist fertigungstechnisch aufwändig und damit kostenintensiv.In the manufacture of a refrigeration device with a cooling air channel arranged in this way, it must be brought to the desired position in a pre-assembly before foaming the cavity located between the outer housing and the inner housing and fixed by means of retaining elements in this, so that the cooling air channel during foaming even under him by the expansion of the foam acting forces in the desired position remains. The pre-assembly of the cooling air duct is technically complex and therefore expensive.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Kältegerät der eingangs genannten Art mit einem zwischen einem Außengehäuse und einem Innengehäuse angeordneten Kühlluftkanal zu schaffen, der fertigungstechnisch einfacher und damit kostengünstiger hergestellt werden kann.The invention is therefore an object of the invention to provide a refrigeration device of the type mentioned above with an arranged between an outer casing and an inner housing cooling air duct, which can be made easier to manufacture and therefore less expensive.
Diese Aufgabe wird durch die Merkmale von Anspruch 1 gelöst.This object is solved by the features of claim 1.
Bei dem erfindungsgemäßen Kältegerät ist der Kühlluftkanal aus einem Formteil aus Isolationsmaterial, beispielsweise einem Hartschaum aus Polystyrol, und einem geschlossenen Rückwandelement gebildet, wobei das Formteil an einer Außenseite des Innengehäuses anliegt und so das Innengehäuse und damit den Innenraum gegen den Kühlluftkanal wärmeisoliert. Eine vollständige Einbettung des Kühlluftkanals in eine zwischen Außen- und Innengehäuse befindliche wärmeisolierende Schaumstruktur entfällt daher, so dass auf die vorerwähnten zeit- und kostenintensiven Vorarbeiten dazu verzichtet werden kann und sich das Kältegerät somit preiswerter herstellen lässt.In the refrigerator according to the invention, the cooling air channel is formed from a molded part of insulating material, such as a rigid polystyrene foam, and a closed rear wall element, wherein the molded part rests against an outer side of the inner housing and thus the inner housing and thus the inner space against the cooling air duct heat-insulated. A complete embedding of the cooling air duct in a located between the outer and inner casings heat-insulating foam structure is therefore eliminated, so that can be dispensed with the aforementioned time-consuming and costly preparatory work to this and the refrigeration device can thus produce cheaper.
Ein weiterer Vorteil des erfindungsgemäßen Kältegerätes liegt in der räumlichen Nähe des Kühlluftkanals zum Innengehäuse bzw. zum Innenraum. Durch diese Anordnung wird der Wärmeeinfall in den Kühlluftkanal reduziert und so der Energieverbrauch und damit die Betriebskosten des Kältegerätes gesenkt.Another advantage of the refrigerator according to the invention lies in the spatial proximity of the cooling air duct to the inner housing or to the interior. By this arrangement, the heat input is reduced in the cooling air duct, thus reducing the energy consumption and thus the operating costs of the refrigerator.
Bei dem erfindungsgemäßen Kältegerät ist das Rückwandelement als U-Profil mit zwei das Innengehäuse berührenden Profilschenkeln ausgebildet. Dadurch ist die Möglichkeit gegeben, den Kühlluftkanal an einer ebenen Wand des Innengehäuses zu bilden.In the refrigerator according to the invention, the rear wall element is designed as a U-profile with two profile legs contacting the inner housing. This gives the possibility to form the cooling air channel on a flat wall of the inner housing.
Weiterbin umfasst der Kühlluftkanal zumindest ein Stützelement, das zwischen der Innenseite eines Profilrückens des U-Profils und einem dem Profilrücken zugewandten Bereich des Innengehäuses angeordnet ist. Beim Ausschäumen des zwischen dem Außengehäuse und dem Innengehäuse befindlichen Hohlraums entsteht bei der Expansion des Schaums ein verhältnismäßig hoher Druck, der insbesondere auch auf dem Rücken des U-Profils lastet und so zu einer Deformation des Kanals und damit zu einer Verringerung seines Querschnitts führen kann. Einer derartigen Verringerung des Kanalquerschnitts wirkt das Stützelement entgegen. Die abstützende Wirkung ist besonders dann effektiv, wenn sich das Stützelement über die gesamte Länge des Kühlluftkanals erstreckt.Weiterbin includes the cooling air duct at least one support element which is arranged between the inside of a profile back of the U-profile and the profile back facing portion of the inner housing. When foaming the cavity located between the outer housing and the inner housing, a relatively high pressure is created during the expansion of the foam, which in particular also rests on the back of the U-profile and can thus lead to a deformation of the channel and thus to a reduction of its cross section. Such a reduction of the channel cross section counteracts the support element. The supporting effect is particularly effective when the support member extends over the entire length of the cooling air passage.
Um die Strömung im Kühlluftkanal nicht nennenswert zu beeinträchtigen, erstreckt sich das Stützelement vorzugsweise in Strömungsrichtung entlang einer Mittellinie des Kühlluftkanals.In order not to appreciably affect the flow in the cooling air duct, the support element preferably extends in the flow direction along a center line of the cooling air duct.
Entsprechend einer bevorzugten Ausführungsform ist das Formteil als langgestreckte Platte ausgebildet, deren Längsränder jeweils an einer der Schenkelinnenseiten des U-Profils anliegen, um so den Kühlluftkanal auf seinem gesamten Querschnitt gegen den Innenraum zu isolieren.According to a preferred embodiment, the molded part is formed as an elongated plate, the longitudinal edges abut each one of the leg inner sides of the U-profile, so as to isolate the cooling air channel over its entire cross-section against the interior.
Die langgestreckte Platte und das Stützelement sind einteilig zusammenhängend, etwa in Form eines T-Profils oder eines E-Profils, realisiert. Durch die Realisierung des Stützelementes als T-Profil oder als E-Profil lassen sich auf einfache Weise in Kombination mit dem Rückwandelement zwei oder drei nebeneinander liegende Kühlluftkanäle erzeugen. Für den Fall, dass das Stützelement im Querschnitt in Art eines Kamms ausgebildet ist, ergeben sich durch die Kammzwischenräume eine Mehrzahl von Kühlluftkanälen. Gleichzeitig gelingt eine besonders intensive und gleichmäßige Abstützung des RückwandelementesThe elongate plate and the support element are integrally connected, realized in the form of a T-profile or an E-profile. By realizing the support element as a T-profile or as an E-profile, two or three adjacent cooling air ducts can be produced in a simple manner in combination with the rear wall element. In the event that the support element is formed in cross-section in the manner of a comb, resulting from the comb gaps a plurality of cooling air channels. At the same time, a particularly intensive and uniform support of the rear wall element succeeds
Vorzugsweise sind an den Längsrändern der langgestreckten Platte Stege abgewinkelt, die ebenfalls zur Abstützung des Rückwandelements oder zur Erleichterung von dessen Positionierung dienen können.Preferably, at the longitudinal edges of the elongated plate webs are angled, which can also serve to support the rear wall element or to facilitate its positioning.
Gemäß einer besonders bevorzugten Ausführungsform der Erfindung sind die Außenseiten der Stege zu den benachbarten Schenkelinnenseiten des U-Profils beabstandet, da in einer derartigen Position die Stege den U-Profilrücken effektiver abstützen können.According to a particularly preferred embodiment of the invention, the outer sides of the webs are spaced from the adjacent leg inner sides of the U-profile, since in such a position, the webs can support the U-profile backs more effective.
Nach einer besonderen Weiterbildung der Erfindung ist vorgesehen, dass das Innengehäuse zumindest mit einer Markierung versehen ist, die eine vorgesehene Montageposition des Formteils am Innengehäuse anzeigt. Dadurch wird Montage des Formteils am Innengehäuse erleichtert.According to a particular embodiment of the invention it is provided that the inner housing is provided at least with a mark indicating an intended mounting position of the molded part on the inner housing. As a result, assembly of the molded part is facilitated on the inner housing.
Ferner kann im Hinblick auf eine schnelle und korrekte Montage des Kühlluftkanals am Innengehäuse vorgesehen sein, dass das Rückwandelement, vorzugsweise auf einer dem Formteil zugewandten Seite, mit einer Positionierungshilfe versehen ist, um das Rückwandelement leicht, schnell und zuverlässig in die gewünschte Position bringen zu können.Furthermore, it can be provided with respect to a quick and correct installation of the cooling air duct on the inner housing that the rear wall element, preferably on a side facing the molding, is provided with a positioning aid to bring the rear wall element easily, quickly and reliably in the desired position ,
Um eine größere Fläche bereit zu stellen, mittels derer das U-Profil am Innengehäuse fixiert werden kann, kann in einer weiter bevorzugten Weiterbildung der Erfindung vorgesehen sein, dass das U-Profil im Bereich seiner Schenkelenden mit einem Flansch versehen ist.To provide a larger area, by means of which the U-profile can be fixed to the inner housing, can be provided in a further preferred embodiment of the invention that the U-profile is provided in the region of its leg ends with a flange.
Um eine Leitungsverbindung zwischen dem Kühlluftkanal und dem Innenraum für die Zuleitung von Kühlluft aus dem Kühlluftkanal in den Innenraum zu gewährleisten, ist gemäß einer besonders bevorzugten Ausführungsform des erfindungsgemäßen Kältegeräts vorgesehen, dass das Formteil und an korrespondierenden Stellen das Innengehäuse mit Luftdurchgangsöffnungen versehen ist.In order to ensure a line connection between the cooling air duct and the interior for the supply of cooling air from the cooling air duct into the interior, is provided according to a particularly preferred embodiment of the refrigerator according to the invention, that the molded part and at corresponding points, the inner housing is provided with air passage openings.
Bei dem erfindungsgemäßen Kältegerät handelt es sich vorzugsweise um ein Kältegerät in No-Frost-Technik, das vorzugsweise als Haushalts-Kältegerät ausgestaltet ist. Dabei kann es sich um ein Kühl- oder Gefriergerät oder ein sog. Kühl-/Gefrierkombinationsgerät handeln.The refrigeration device according to the invention is preferably a refrigeration device in no-frost technology, which is preferably designed as a household refrigeration appliance. It may be a refrigerator or freezer or a so-called. Refrigerated / freezer combination device.
Die nachfolgende Beschreibung dient im Zusammenhang mit der Zeichnung der Erläuterung der Erfindung. Es zeigen:
- Fig. 1
- eine vertikale Schnittansicht eines Kältegeräts mit einem an einem Innengehäuse anliegenden Kühlluftkanal;
- Fig. 2
- Ausschnitt aus einer horizontalen Schnittansicht des Kältegeräts im Bereich des Kühlluftkanals, welches kein Stützelement aufweist und nicht zur Erfindung gehört;
- Fig. 3
- eine der
Fig. 2 entsprechende Ansicht einer ersten Ausführungsform der Erfindung; - Fig. 4
- eine der
Fig. 2 entsprechende Ansicht einer zweiten Ausführungsform der Erfindung.
- Fig. 1
- a vertical sectional view of a refrigerator with a voltage applied to an inner housing cooling air duct;
- Fig. 2
- Section of a horizontal sectional view of the refrigerator in the region of the cooling air duct, which has no support element and does not belong to the invention;
- Fig. 3
- one of the
Fig. 2 corresponding view of a first embodiment of the invention; - Fig. 4
- one of the
Fig. 2 corresponding view of a second embodiment of the invention.
In der
Zur Kühlung der Innenräume 12 und 14 wird über einen Kanal 30 Luft aus den Innenräumen 12 und 14 mittels eines Ventilators 25 angesaugt und über den in der Kammer 26 befindlichen Verdampfer 24 geführt, wo sie gekühlt und mittels Kondensation getrocknet wird. Die gekühlte und getrocknete Kühlluft wird zum einen in einem zum Tiefgefrierraum 12 führenden Abschnitt eines Kühlluftkanals 32, der aus einer an Rückwänden der Innengehäuseschalen 16 und 18 anliegenden Platte 34 aus Styropor als Formteil und einem U-Profil 44 aus Kunststoffmaterial als Rückwandelement gebildet ist, ausgestoßen und gelangt von dort durch Ausblasöffnungen 54 als Luftdurchgangsöffnungen, welche die Innengehäuseschale 16 und die Styroporplatte 34 durchsetzen, in den Innenraum 12. Zum anderen wird die vom Verdampfer 24 gekühlte und getrocknete Kühlluft in einem zum Kühlraum 14 führenden Abschnitt des Kühlluftkanals 32 ausgestoßen und gelangt von dort über Ausblasöffnungen 56 als Luftdurchgangsöffnungen, welche die Styroporplatte 34 und die Innengehäuseschale 18 durchsetzen, in den Innenraum 14. Die Steuerung der Kühlluftzufuhr zu den Innenräumen 12 und 14 erfolgt in an sich bekannter und daher in der Zeichnung nicht dargestellter Weise über Thermostate und Klappen. Eine ebenfalls nicht dargestellte Heizung ist im Zwischenboden 28 zur Enteisung des Verdampfers 24 vorhanden.To cool the
Wie aus der
In der
Das zwischen den Schenkeln 77 des U-Profils 74 angeordnete T-Profil 64 weist einen Profilrücken 65 und eine Mittelrippe 66 auf. Während das Längsende 67 der Mittelrippe 66 dichtend an der Innenseite des Rückens 75 des U-Profils 74 anliegt, kommen die Längsenden 68 des T-Profilrückens 65 an den Schenkelinnenseiten 73 des U-Profils 74 dichtend zur Anlage, so dass zwei voneinander unabhängige Kühlluftleitungen 82 und 84 ausgebildet werden und die Mittelrippe 66 den U-Profilrücken 75 abstützt. Die der Mittelrippe 66 abgewandte Seitenfläche des Profilrückens 65 liegt an der Rückwand der Innengehäuseschale 58 an und ist dort mittels eines Klebemittels fixiert.The arranged between the
An der Innenseite des Rückens 75 des U-Profils 74 sind zwei zueinander parallel verlaufende, sich in Strömungsrichtung erstreckende Leisten 80 als Positionierungshilfsmittel angeordnet. Zwischen den zueinander beabstandeten Leisten 80 ist ein am Längsende 67 gelegener Bereich der Mittelrippe 66 aufgenommen. Um Kühlluft aus den Kühlluftleitungen 82 und 84 in einen Kühlraum überführen zu können, ist jede der Kühlluftleitungen 82 und 84 des Kühlluftkanals 62 mit Ausblasöffnungen 86 als Luftdurchgangsöffnungen versehen, welchen den Rücken 65 des T-Profils 64 und an entsprechenden Stellen die Rückwand der Innengehäuseschale 58 durchsetzen.On the inside of the
In der
Das zwischen den Schenkeln 107 des U-Profils 104 angeordnete E-Profil 94 weist einen Profilrücken 95, zwei seitliche Stege 97 und eine zwischen diesen Stegen 97 angeordnete Mittelrippe 96 auf. Das mit seiner freien Rückenseite an der Innengehäuseschale 88 anliegende E-Profil 94 liegt mit den Längsenden 98 der Stege 97 und dem Längsende 99 der Mittelrippe 96 dichtend an der Innenseite des Profilrückens 105 an und bildet so den Kühlluftkanal 92 mit zwei voneinander unabhängigen Kühlluftleitungen 122 und 124 aus. Um die Kühlluftleitungen 122 und 124 für die Herabkühlung eines Innenraums mit diesem für eine Kühlluftzufuhr zu verbinden, ist jede der Kühlluftleitungen 122 und 124 mit Ausblasöffnungen 106 als Luftdurchgangsöffnungen versehen, welche den Rücken 95 des E-Profils 94 und an entsprechenden Stellen die Innengehäuseschale 88 durchsetzen.The E-profile 94 disposed between the
Die Rückwand der Innengehäuseschale 88 ist mit Markierungen in Form von die Rückwand durchsetzenden rechteckigen Ausstanzungen 114 versehen, entlang deren Längskanten das E-Profil 94 bei der Montage ausgerichtet werden kann, bevor es an der Innengehäuseschale 88 in der gewünschten Position fixiert wird. Die Ausstanzungen 114 können gleichfalls beispielsweise zur Aufnahme von Halteelementen einer in der Fig. nicht gezeigten, im Innenraum 12 bzw. 14 angeordneten Luftverteilermaske dienen.The rear wall of the
In den Winkeln des U-Profils 104 ist jeweils eine sich in seine Längsrichtung erstreckende Dreieckleiste 111 als Positionierungshilfsmittel fixiert. Nach der Montage des E-Profils 94 an der Außenseite der Rückwand der Innengehäuseschale 88 kann bei der Montage des U-Profils 104 dieses über das E-Profil 94 gestülpt und an der Außenseite der Innengehäuseschale 88 aufgesetzt werden, wobei die Außenkanten der Längsenden 98 der Profilschenkel 97 im Zusammenwirken mit den den Außenseiten der Profilschenkel 97 zugewandten Seitenflächen der Dreiecksleisten 111 das U-Profil 104 zuverlässig in die gewünschte Position führen.In each of the angles of the U-profile 104, a
Die Dreieckleisten 111, die in
Claims (10)
- Refrigerating appliance with an outer housing, with an inner housing (16, 18; 58; 88), which is spaced from the outer housing and surrounded by this, wherein the cavity arising between the outer housing and the inner housing (16, 18; 58; 88) is for insulation purposes filled with foam, further with an interior space (12, 14), which is surrounded by the inner housing (16, 18; 58; 88) and which is cooled for circulation of cooling air fed to the inner space (12, 14) by means of a cooling air channel (32; 62; 92), which serves for distribution of cooling air and which is arranged between the outer housing and the inner housing (16, 18; 58; 88), wherein the cooling air channel (32; 62; 92) is formed from a shaped part (34; 64; 94), which bears against an outer side of the inner housing (16, 18; 58; 88), of insulation material and a closed rear wall element (44; 74; 104), characterised in that the rear wall element (44; 74; 104) is formed as a U-section (44; 74; 104) with two profile limbs (48; 78; 108) contacting the inner housing (16, 18; 58; 88), that the cooling air channel (32; 62; 92) comprises at least one support element which is arranged between the inner side of a profile back (45; 75; 105) of the U-section (44; 74; 104) and a region of the inner housing (16, 18; 58; 88), which is covered by the rear wall element (44; 74; 104), so as to support the profile back (45; 75; 105) on the inner housing (16, 18; 58; 88), and that the shaped part (34; 64; 94) is formed to be integrally cohesive with the support element.
- Refrigerating appliance according to claim 1, characterised in that the shaped part (34; 64; 94) comprises an elongate plate (34), the longitudinal edges (36) each bear against a respective one of the limb inner sides (46; 73) of the U-section (44; 74; 104).
- Refrigerating appliance according to claim 1 or 2, characterised in that the support element in flow direction extends along a centre line of the cooling air channel (32; 62; 92).
- Refrigerating appliance according to claim 3, characterised in that the support element is a centre rib (66) of the shaped part (34; 64; 94).
- Refrigerating appliance according to claim 1, characterised in that the shaped part (34; 64; 94) comprises an elongate plate (34), at the longitudinal edges (36) of which webs (97) contacting the inner side of the profile back (105) are bent over.
- Refrigerating appliance according to claim 5, characterised in that the outer sides of the webs (97) are arranged at a spacing from the adjacent limb inner sides (107) of the U-section (104).
- Refrigerating appliance according to any one of the preceding claims, characterised in that the inner housing (16, 18; 58; 88) is provided at least with a marking (114) indicating an intended mounting position of the shaped part (34; 64; 94).
- Refrigerating appliance according to any one of the preceding claims, characterised in that a profile (80), which co-operates with the shaped part, for fixing of the position of the U-section (44; 74; 104) with respect to the shaped part is formed at the inner side of a profile back (45; 75; 105) of the U-section (44; 74; 104).
- Refrigerating appliance according to any one of the preceding claims, characterised in that limbs, which face the inner housing (16, 18; 58; 88), of the rear wall element are each provided with a respective flange (49; 79; 109) bearing against the inner housing (16, 18; 58; 88).
- Refrigerating appliance according to any one of the preceding claims, characterised in that the shaped part (34; 64; 94) and the inner housing (16, 18; 58; 88) are provided at corresponding locations with air passage openings (54, 56; 86; 106).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005021613A DE102005021613A1 (en) | 2005-05-10 | 2005-05-10 | The refrigerator |
PCT/EP2006/061038 WO2006120058A1 (en) | 2005-05-10 | 2006-03-24 | Refrigerator |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1846707A1 EP1846707A1 (en) | 2007-10-24 |
EP1846707B1 true EP1846707B1 (en) | 2011-11-02 |
Family
ID=36581731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06725308A Active EP1846707B1 (en) | 2005-05-10 | 2006-03-24 | Refrigerator |
Country Status (8)
Country | Link |
---|---|
US (1) | US8959946B2 (en) |
EP (1) | EP1846707B1 (en) |
CN (1) | CN101171473B (en) |
AT (1) | ATE532014T1 (en) |
DE (1) | DE102005021613A1 (en) |
ES (1) | ES2373972T3 (en) |
RU (1) | RU2395761C2 (en) |
WO (1) | WO2006120058A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTO20091007A1 (en) | 2009-12-21 | 2011-06-22 | Indesit Co Spa | NO-FROST TYPE OF REFRIGERATION APPLIANCE, IN PARTICULAR HOUSEHOLD USE. |
DE102011006807A1 (en) * | 2011-04-05 | 2012-10-11 | BSH Bosch und Siemens Hausgeräte GmbH | Combination refrigeration device |
CN102997546A (en) * | 2011-09-19 | 2013-03-27 | 博西华电器(江苏)有限公司 | Household refrigerator |
US10094610B2 (en) * | 2013-12-12 | 2018-10-09 | Electrolux Home Products, Inc. | Movable mullion |
EP3657106B1 (en) | 2014-01-07 | 2022-08-10 | Samsung Electronics Co., Ltd. | Refrigerator |
CN104296460B (en) * | 2014-10-23 | 2016-11-30 | 合肥美的电冰箱有限公司 | For the freezing box liner assembly of refrigerator and the refrigerator with it |
US10890370B2 (en) * | 2014-12-31 | 2021-01-12 | Bsh Hausgeraete Gmbh | Cooling device having an air channel and a baffle |
KR102261134B1 (en) * | 2017-03-10 | 2021-06-07 | 엘지전자 주식회사 | Refrigerator |
KR102454399B1 (en) * | 2017-09-22 | 2022-10-14 | 엘지전자 주식회사 | Refrigerator |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3027735A (en) * | 1960-01-25 | 1962-04-03 | Gen Motors Corp | Refrigerating apparatus |
US3104533A (en) * | 1961-04-24 | 1963-09-24 | Gen Motors Corp | Refrigerating apparatus |
US3466891A (en) | 1967-09-06 | 1969-09-16 | Amana Refrigeration Inc | Combination freezer and refrigerator with fast freezing means |
JPH0295180A (en) | 1988-09-29 | 1990-04-05 | Canon Inc | Inchworm type driving mechanism |
US5495726A (en) * | 1993-09-24 | 1996-03-05 | Daewoo Electronics Co., Ltd. | Mechanism for cooling a fresh food compartment of a refrigerator |
KR0153496B1 (en) * | 1996-06-29 | 1999-01-15 | 배순훈 | Refrigerator |
TW422331U (en) * | 1997-04-25 | 2001-02-11 | Mitsubishi Electric Corp | Refrigerator |
US6112542A (en) | 1998-12-15 | 2000-09-05 | Daewoo Electronics Co., Ltd. | Refrigerator having a cooled-air passageway formed with an external surface of a liner |
KR100557490B1 (en) * | 1999-06-02 | 2006-03-07 | 주식회사 엘지이아이 | Cool air spouting hole formation structure for refrigerator |
CA2355155C (en) * | 2000-08-16 | 2009-10-13 | Lg Electronics Inc. | Door cooling apparatus for refrigerator with double-acting door |
-
2005
- 2005-05-10 DE DE102005021613A patent/DE102005021613A1/en not_active Withdrawn
-
2006
- 2006-03-24 RU RU2007136710/12A patent/RU2395761C2/en not_active IP Right Cessation
- 2006-03-24 WO PCT/EP2006/061038 patent/WO2006120058A1/en active Application Filing
- 2006-03-24 US US11/918,597 patent/US8959946B2/en active Active
- 2006-03-24 AT AT06725308T patent/ATE532014T1/en active
- 2006-03-24 CN CN200680015467.7A patent/CN101171473B/en active Active
- 2006-03-24 EP EP06725308A patent/EP1846707B1/en active Active
- 2006-03-24 ES ES06725308T patent/ES2373972T3/en active Active
Also Published As
Publication number | Publication date |
---|---|
RU2007136710A (en) | 2009-06-20 |
ES2373972T3 (en) | 2012-02-10 |
RU2395761C2 (en) | 2010-07-27 |
CN101171473A (en) | 2008-04-30 |
WO2006120058A1 (en) | 2006-11-16 |
EP1846707A1 (en) | 2007-10-24 |
US8959946B2 (en) | 2015-02-24 |
DE102005021613A1 (en) | 2006-11-23 |
ATE532014T1 (en) | 2011-11-15 |
US20090056364A1 (en) | 2009-03-05 |
CN101171473B (en) | 2011-03-02 |
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