EP1848938B1 - Refrigeration device - Google Patents

Refrigeration device Download PDF

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Publication number
EP1848938B1
EP1848938B1 EP06725557.0A EP06725557A EP1848938B1 EP 1848938 B1 EP1848938 B1 EP 1848938B1 EP 06725557 A EP06725557 A EP 06725557A EP 1848938 B1 EP1848938 B1 EP 1848938B1
Authority
EP
European Patent Office
Prior art keywords
duct
duct part
refrigeration appliance
parts
cooling air
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.)
Not-in-force
Application number
EP06725557.0A
Other languages
German (de)
French (fr)
Other versions
EP1848938A1 (en
Inventor
Jan-Grigor Schubert
Harald Stelzer
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 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 Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP1848938A1 publication Critical patent/EP1848938A1/en
Application granted granted Critical
Publication of EP1848938B1 publication Critical patent/EP1848938B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/062—Walls defining a cabinet
    • F25D23/064—Walls defining a cabinet formed by moulding, e.g. moulding in situ
    • 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
    • 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
    • F25D2317/0672—Outlet 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 present invention relates to a refrigerator having at least one of a heat-insulating housing surrounded interior, which is cooled by circulation of cooling air, wherein serving for distribution of the cooling air cooling air passage extending in a wall of the heat-insulating housing.
  • Such a refrigerator is out of the DE 39 32 459 C2 known.
  • a cooling air channel serving to distribute the cooling air over a plurality of refrigeration compartments is arranged in a rear wall of the heat-insulating housing of the refrigeration appliance.
  • the in Fig. 1 and 2 designated by the reference numeral 27 cooling air channel 27 is arranged by a in the rear wall of the heat-insulating housing and in the Fig. 8 and 9 formed as a single part trough-shaped molding 28, which abuts with its open side from behind against the rear wall of the individual cold storage enclosing inner container and there corresponds with corresponding outlet openings.
  • the molded part 28 has a very complex structure and is therefore expensive to manufacture.
  • a refrigerator according to the preamble of claim 1 is made US 2005/076669 A1 known.
  • the patent US 5,884,496 shows a refrigerator, wherein below a shelf a compartment floor pipe is arranged, through which cold air can flow.
  • the present invention is therefore an object of the invention to provide a refrigeration device of the type mentioned with a built-in wall of the housing cooling air duct, which has a simple structure, so that the refrigeration device can be produced inexpensively.
  • a refrigerator is provided with at least one of a heat-insulating housing surrounded interior, which is cooled by circulation of cooling air, wherein a serving for distribution of the cooling air cooling air passage extends in a wall of the heat-insulating housing.
  • the cooling air duct is formed from a first elongated duct part, for example a pipeline, and a plurality of identical, second duct parts which are distributed along the first duct part are and establish a connection between the first channel part and air passage openings in an inner container surrounding the interior.
  • the first channel part is formed from a tube which has a passage opening for the cooling air at a connection point with one of the second channel parts in its tube wall.
  • the tube has a circular cross-section. This is inexpensive to manufacture and allows a simple design of the connections of the first channel part with the second channel parts.
  • the second channel parts are preferably formed from hard foam.
  • the second channel parts are preferably formed from hard foam.
  • it is a lightweight material that is inexpensive to manufacture.
  • it has good heat insulating properties.
  • it is particularly preferred to use expanded polystyrene (styrofoam) as material for the second channel parts. This material is well wetted by the polyurethane foams used mostly for foaming the heat-insulating housing.
  • the second channel parts surround the first channel part over its entire circumference. This results in a high mechanical stability of the connections between the first channel part and the second channel parts. This is especially true of Meaning, if the second channel parts are made of a foamed material only relatively low mechanical strength.
  • the cooling air duct preferably comprises a third duct part, which establishes a connection between the first duct part and the inner container and is attached to an open end of the first duct part.
  • the third channel part not only establishes a connection between the first channel part and air passage openings in the inner container, but at the same time can be used to close the open end of the first channel part in a foam-tight manner.
  • the third channel part has a recess for receiving the open end of the first channel part, wherein the third channel part can be converted into the second channel part by removing a bottom of the recess. That in the second channel part, the bottom is missing in the recess.
  • the first channel part can be inserted with a free end into the recess of the second channel part and passed through it, so that a crossing arrangement of the first channel part and the second channel part is possible, i. the second channel part can be threaded onto the first channel part, so to speak.
  • the bottom of the recess is limited by predetermined breaking points.
  • the bottom of the recess can be broken out in a simple manner, thus obtaining the second duct part.
  • the advantage of this is that only one channel part has to be manufactured, which embodies both the third channel part and the second channel part in itself.
  • the inner container foam-side preferably on formations that define the position of the second channel parts and optionally the third channel part with respect to the inner container.
  • the second channel parts or the third channel part can be kept in a desired manner to the inner container in a simple manner.
  • the channel parts encircling projections are particularly advantageous because they prevent that during foaming insulating foam between the inner container and the second channel part can pass, which could enforce the air passage openings in the inner container.
  • each of the second channel parts feeds at least two air passage openings in the inner container, which are spaced apart transversely to the longitudinal direction of the first channel part. This allows a distribution of the cooling air over the entire width of the interior of the refrigerator.
  • the air passage openings in the inner container are preferably oriented in two different directions.
  • the cooling air can be blown out in different directions. This makes it possible to distribute the cooling air over the entire width of the interior of the refrigeration device, even at a small distance between the air passage openings arranged transversely to the longitudinal direction of the first channel part.
  • Air passage openings oriented in different directions can be provided, for example, by making a wall section of the inner container comprising the air passage openings curved or bent in the horizontal direction toward the inner space.
  • each of the second channel parts has air passage openings which are assigned to the air passage openings in the inner container and are delimited by a wall of the second channel part lying flat against the inner container.
  • This embodiment has a higher rigidity than an embodiment in which the second or third channel part is designed to be open toward the inner container. The determination of the second channel parts or the third channel part on the inner container for foaming the housing of the refrigerator is thereby simplified.
  • the first channel part in its wall on predetermined breaking points for breaking out of air passage openings. This makes it possible to use the first channel part for different types of refrigerators and, as required, break out air passage openings from the first channel part.
  • 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.
  • the vertical section of the Fig. 1 shows as an example of a refrigeration device 1 according to the invention a household refrigeration device 1 in no-frost technology.
  • the refrigeration device 1 comprises two Interiors 2 and 3, which are arranged in a heat-insulating housing 4 and accessible via two separate and also heat-insulating doors 5 and 6.
  • the space 2 arranged at the top is designed as a freezing space 2 and the space 3 arranged below as a cooling space 3.
  • the interiors 2 and 3 are formed by inner containers 7 and 8, which are formed of plastic boards. Between a formed of sheet metal outer container 9 and the inner container 7 and 8, a heat-insulating foam 10 is introduced.
  • the refrigeration device 1 is equipped in a known manner with a compressor-cooling unit, of the individual components here for the sake of simplicity only in a machine room 60 in a lower, rear portion of the refrigerator 1 of the heat-insulating housing 4 arranged refrigerant compressor 61 and a refrigerant Evaporator 16 are shown.
  • the evaporator 16 is arranged in a chamber 14 in a heat insulating intermediate bottom 12 located between the inner containers 6 and 7.
  • thermostats and flaps which are not shown here.
  • a heater also not shown, is present in the intermediate bottom 12 for deicing of the evaporator 16.
  • the cooling air duct 23 leading to the interior 3 is formed from a first, elongated duct part 25, in this case a vertically arranged duct 25, and a plurality of identical, second duct parts 26, which are arranged along the first duct part 25 and intersect this. With its lower, open end 29, the pipe 25 is inserted into a third channel part 28.
  • the second channel parts 26 and the third channel part 28 are aligned horizontally and connect the pipe 25 with located in the inner container 8 air passage openings 37, which act here as exhaust openings 37 for the cooling air.
  • the exhaust openings 37 are located at different heights of the interior 3, so that the cooling air can be distributed uniformly over the entire interior 3. This is particularly important if continuous support plates for refrigerated goods hinder a vertical exchange of air in the interior 3.
  • the pipe 25 and the second channel parts 26 and the third channel part 28 are embedded in the rear wall 27 of the housing 4 in heat-insulating foam 10.
  • the pipe 25 has, as out Fig. 2 can be seen, a circular cross-section. However, it is also conceivable deviating from the illustrated embodiment, to provide a pipe 25 with a rectangular, for example square cross-section. As a material for the pipe 25, for example, plastic can be used. Thus, the pipe 25 can be manufactured inexpensively and also has a low weight.
  • the second channel parts 26 and the third channel part 28 are as in FIG Fig. 1 shown, designed in two parts. They each comprise a lower shell 30 and an upper shell 31, each made of rigid foam, for example made of expanded polystyrene, molded and foam-tight, for example by gluing or sticking, are interconnected.
  • Fig. 2 shows a horizontal section through one of the second channel parts 26 of Fig. 1 .
  • the second channel part 26 has a recess 33, here in the form of a through hole 33 into which the pipe 25 is inserted.
  • the second channel part 26 surrounds the pipe 25 over its entire circumference, resulting in a high stability of the connection between the two parts.
  • each second channel part 26 the pipe 25 has in its wall air passage openings 34, which open into a space 35 of the second channel part 26, which serves to distribute the cooling air to the exhaust openings 37 in the inner container 8.
  • the Room 35 is dimensioned transversely to the longitudinal direction of the pipeline 25, ie in its width, so that the second channel part feeds at least two air passage openings 37 in the inner container 8, which are arranged transversely to the longitudinal direction of the pipeline 25. Notwithstanding the illustrated embodiment, it is also possible to feed three or more air passage openings 37 with a second channel part 26.
  • the second channel portion 26 is located with a wall 35 concluding the space 38 directly to a wall portion 39 of the inner container 8 at.
  • the wall 38 of the second channel part 26 are air passage openings 40 which correspond to the air passage openings 37 in the inner container 8.
  • the wall 38 of the second channel part 26 and the wall portion 39 of the inner container 8 are formed curved in the horizontal direction to the inner space 3 out.
  • the blow-out openings 37 in the inner container 8 are oriented in two different directions, so that the cooling air is blown out in different directions.
  • foam-side formations 42 in the form of circumferential projections 42, which serve for positioning and fixing the second channel part 26 on the inner container 8 during foaming of the housing 4 with insulating foam 10.
  • the circumferential projections 42 prevent the circumferential projections 42 that when foaming the housing 4 foam 10 in the space between the inner container 8 and the adjoining wall 38 of the second channel portion 26 can pass, which could close the exhaust openings 37 and air passage openings 40.
  • Fig. 3 shows a view of the inner container 8 seen from the interior 3 in a relation to the Fig. 2 reduced view.
  • the exhaust openings 37 in the inner container 8 which are each arranged in pairs at different heights of the inner container 8.
  • the broken lines show the circumferential projections 42 on the foam 10 facing the rear wall of the inner container. 8
  • the inner container 8 can be made for example by deep drawing a plastic board, wherein the exhaust openings 37 are cut out by punching.
  • Fig. 4 shows a side view of a pipe 25, which inter alia for installation in a refrigeration device 1 according to the preceding Fig. 1 to 3 is determined.
  • the pipe 25 has in its wall a plurality of circular notches 44, 44 ', which generate predetermined breaking points on the pipe wall.
  • the in Fig. 2 shown air passage openings 34 are created in the pipe 25 and thus one or more locations where each a second channel part 26 or the third channel part 28 foam-tight and can be mounted continuously for the cooling air.
  • the set of serrations 44 and the set of serrations 44 ' are offset from each other as viewed across the tube circumference.
  • piping 25 For installation of the cooling air duct 23 in the refrigerator 1 according to the Fig. 1 to 3 will be out of the Fig. 4 shown piping 25, the circular wall portions 45 broken out to the in Fig. 1 and 2 to create air passage openings 34 shown.
  • the pipe 25 is to be shortened in length.
  • a pipe 25 may be used, in which according to the vertical distance of the exhaust openings 37 in the inner container 8 air passage openings 34 are punched out of the pipe wall.
  • the third channel part 28 is shown in more detail. This is how Fig. 1 shows, attached to the lower, open end of the pipe 25. It shows the Fig. 5 the third channel part 28 in plan view and the Fig. 6 in a section along a section line AA of Fig. 5 ,
  • the third channel part 28 has the same structure as that in FIG Fig. 2
  • the recess 33 of the third channel part 28 comprises a bottom 47, which closes the recess 33 in a foam-tight manner downwards.
  • the recess 33 is thus configured as a circular blind hole 33 into which the open end 29 of the pipe 25 is inserted.
  • the bottom 47 can be easily removed by breaking out.
  • the third channel part 28 can be converted into the second channel part 26 in a simple manner.
  • By removing the bottom 47 creates a through hole 33 through which the pipe 25 can be pushed.
  • the lower shell 30 and the upper shell 31 have complementary shaped formations 32 and 36, so that the shells 30 and 31 can be easily connected to each other by plugging together.
  • the installation of the cooling air duct 23 in the refrigeration device 1 after Fig. 1 is done by first from the in Fig. 4 shown pipe 25, the wall portions 45 are broken out to the in Fig. 1 and 2 to create air passage openings 34 shown. Next, the second channel parts 26 are mounted on the pipe 25. For this purpose, the pipe 25 is inserted into the through holes 33 of the second channel parts 26 and the second channel parts 26 are then arranged at the level of the air passage openings 34. The lower, open end of the pipe 29 is inserted into the blind hole 33 of the third channel part 28.
  • the second channel parts 26 and the third channel part 28 are positioned by means of the projections 42 on the rear wall of the inner container 8 and the cavity between the inner container 8 and the outer container 9 of the refrigerator 1 filled with heat-insulating foam 10.
  • the pipe 25, the second channel parts 26 and the third channel part 28 are firmly embedded in the foam 10 and fixed in position.
  • cooling air duct 23 without the third channel part 28 by only identical, second channel members 26 are arranged distributed along the pipe 25, the lower , open end 29 of the pipe 25 remains free. This can be closed foam-tight by a lid or plug, etc., so that when foaming the housing 4 no foam 10 can penetrate into the pipe 25.
  • FIGS. 7 and 8 show a preferred embodiment of the present invention. It shows the Fig. 7 one of the Fig. 2 corresponding sectional view, whereas Fig. 8 a section according to the in Fig. 7 indicated section line BB shows.
  • the second channel portions 26 and, if present, the third channel portion 28 also include as in the Fig. 2 shown embodiment, a wall 38 which faces the rear wall of the inner container 8.
  • the wall 38 comprises only one air passage opening 40 in the form of an elongated hole 40. This is easier to manufacture and does not require as high accuracy of fit as two air passage holes 40, which must be adapted in position and shape to the exhaust openings 37 in the inner container 8.
  • the Fig. 9 shows a preferred embodiment of the present invention.
  • the space 35 of the second channel parts 26 and the third channel part 28 to the inner container 8 is open, ie there is no room 35 forwards final and abutting the inner container 8 wall 38 is present, as in the first and second embodiment according to the Fig. 2 and 7, 8 the case is.
  • these channel parts are easier to manufacture and therefore less expensive.
  • Fig. 10 shows one of the Fig. 2 . 7 and 9 corresponding sectional view of an embodiment which is not part of the invention.
  • the first channel part 25 is formed in the form of a groove 25 which rests with its open side against the rear wall of the inner container 8.
  • the groove 25 has a semicircular cross-section.
  • the second channel parts 26 and possibly the third channel part 28 are formed as cup-shaped moldings, which also like the groove 25 abut with its open side on the rear wall of the inner container 8.
  • Foam-side formations 42 or projections 42 on the inner container 8 also serve for positioning and fixing the second channel parts 26 and the third channel part 28 on the inner container 8.
  • the channel 25 has in its wall openings 34, passes through the dried and cooled cooling air from the interior of the channel 25 in a second channel part 26 or third channel part 28 enclosed space 35. From this, the cooling air is blown through two air passage openings 37 in the inner container 8 in the interior 3.
  • the air passage openings 37 and outlet openings 37 are spaced apart transversely to the longitudinal direction of the channel 25.
  • the second channel parts 26 and the third channel part 28 each include a bottom 50 and a non-visible in the illustrated sectional view ceiling, in each of which recesses 33 are of semicircular cross-section for receiving the channel 25, which faces the inner container 8 with its open side are.
  • the lower recess 33 is closed foam-tight downwards by a bottom. By breaking out of this bottom, the third channel part 28 can be converted into the second channel part 26.
  • the cooling air duct 23 formed in the embodiments described above from the first duct part 25 and a plurality of second duct parts 26 and possibly a third duct part 28 serves to guide the cooling air dried and cooled by the evaporator 16 into the interior 3 of the refrigeration device 1.
  • a channel could for example be integrated in a side wall of the refrigeration device 1, as for example in the DE 39 32 459 C2 in which the heated air to the evaporator recirculating passage 26 is the case.

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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)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Description

Die vorliegende Erfindung betrifft ein Kältegerät mit mindestens einem von einem wärmeisolierenden Gehäuse umgebenen Innenraum, der durch Zirkulation von Kühlluft gekühlt wird, wobei ein zur Verteilung der Kühlluft dienender Kühlluftkanal in einer Wandung des wärmeisolierenden Gehäuse verläuft.The present invention relates to a refrigerator having at least one of a heat-insulating housing surrounded interior, which is cooled by circulation of cooling air, wherein serving for distribution of the cooling air cooling air passage extending in a wall of the heat-insulating housing.

Ein derartiges Kältegerät ist aus der DE 39 32 459 C2 bekannt. Bei diesem Kältegerät ist ein zur Verteilung der Kühlluft über mehrere Kältefächer dienender Kühlluftkanal in einer Rückwand des wärmeisolierenden Gehäuses des Kältegeräts angeordnet. Der in Fig. 1 und 2 mit der Bezugsziffer 27 bezeichnete Kühlluftkanal 27 wird von einem in der Rückwand des wärmeisolierenden Gehäuses angeordneten und in den Fig. 8 und 9 als Einzelteil dargestellten wannenartigen Formteil 28 gebildet, das mit seiner offenen Seite von hinten gegen die Rückwand der die einzelnen Kältefächer umschließenden Innenbehälter anliegt und dort mit entsprechenden Austrittsöffnungen korrespondiert. Das Formteil 28 besitzt einen sehr komplexen Aufbau und ist daher kostenintensiv in der Fertigung.Such a refrigerator is out of the DE 39 32 459 C2 known. In this refrigeration device, a cooling air channel serving to distribute the cooling air over a plurality of refrigeration compartments is arranged in a rear wall of the heat-insulating housing of the refrigeration appliance. The in Fig. 1 and 2 designated by the reference numeral 27 cooling air channel 27 is arranged by a in the rear wall of the heat-insulating housing and in the Fig. 8 and 9 formed as a single part trough-shaped molding 28, which abuts with its open side from behind against the rear wall of the individual cold storage enclosing inner container and there corresponds with corresponding outlet openings. The molded part 28 has a very complex structure and is therefore expensive to manufacture.

Ein Kältegerät nach dem Oberbegriff des Anspruchs 1 ist aus US 2005/076669 A1 bekannt.A refrigerator according to the preamble of claim 1 is made US 2005/076669 A1 known.

Die Patentschrift US 5,884,496 zeigt ein Kältegerät, wobei unterhalb eines Fachbodens ein Fachbodenrohr angeordnet ist, durch welches Kaltluft strömen kann.The patent US 5,884,496 shows a refrigerator, wherein below a shelf a compartment floor pipe is arranged, through which cold air can flow.

Die Offenlegungsschrift US 2004/255607 A1 zeigt ein Kältegerät.The publication US 2004/255607 A1 shows a refrigerator.

Die Patentschrift US 6,347,530 B1 zeigt ein Kältegerät.The patent US 6,347,530 B1 shows a refrigerator.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, ein Kältegerät der eingangs genannten Art mit einem in einer Wandung des Gehäuses integrierten Kühlluftkanal zu schaffen, der einen einfachen Aufbau besitzt, so dass das Kältegerät kostengünstig hergestellt werden kann.The present invention is therefore an object of the invention to provide a refrigeration device of the type mentioned with a built-in wall of the housing cooling air duct, which has a simple structure, so that the refrigeration device can be produced inexpensively.

Die Aufgabe wird gelöst mit einem Kältegerät nach Anspruch 1. Die abhängigen Ansprüche beziehen sich auf bevorzugte Ausgestaltungen.The object is achieved with a refrigeration device according to claim 1. The dependent claims relate to preferred embodiments.

Demnach wird ein Kältegerät mit mindestens einem von einem wärmeisolierenden Gehäuse umgebenen Innenraum bereitgestellt, der durch Zirkulation von Kühlluft gekühlt wird, wobei ein zur Verteilung der Kühlluft dienender Kühlluftkanal in einer Wandung des wärmeisolierenden Gehäuse verläuft. Erfindungsgemäß ist der Kühlluftkanal aus einem ersten langgestreckten Kanalteil, beispielsweise einer Rohrleitung, und einer Mehrzahl von identischen, zweiten Kanalteilen gebildet, die entlang des ersten Kanalteils verteilt sind und eine Verbindung zwischen dem ersten Kanalteil und Luftdurchgangsöffnungen in einem den Innenraum umgebenden Innenbehälter herstellen.Accordingly, a refrigerator is provided with at least one of a heat-insulating housing surrounded interior, which is cooled by circulation of cooling air, wherein a serving for distribution of the cooling air cooling air passage extends in a wall of the heat-insulating housing. According to the invention, the cooling air duct is formed from a first elongated duct part, for example a pipeline, and a plurality of identical, second duct parts which are distributed along the first duct part are and establish a connection between the first channel part and air passage openings in an inner container surrounding the interior.

Damit besteht die Möglichkeit, für verschiedene Modelle von Kältegeräten Kühlluftkanäle zu schaffen, indem jeweils erste Kanalteile, die modellspezifisch unterschiedliche Längen sowie Positionen und Anzahlen von Stellen für die Montage der zweiten Kanalteile aufweisen, mit mehreren zweiten, untereinander identischen Kanalteilen kombiniert werden, die modellübergreifend einsetzbar sind. Damit können Herstellungskosten reduziert werden. Es ist nicht mehr notwendig, für verschiedene Kältegerätemodelle, die sich beispielsweise in der Anzahl und Anordnung der Luftdurchgangsöffnungen im Innenbehälter unterscheiden, jeweils völlig unterschiedliche Formteile zu fertigen, die zudem, wie beispielsweise in der DE 39 32 459 C2 für den Kühlluftkanal 27 gezeigt, eine komplexe Gestalt besitzen.This makes it possible to create cooling air ducts for different models of refrigeration appliances by combining first channel parts, which have different lengths and positions and numbers of locations for the assembly of the second channel parts, with a plurality of second, mutually identical channel parts that can be used across models are. This manufacturing costs can be reduced. It is no longer necessary, for different refrigeration models, which differ for example in the number and arrangement of the air passage openings in the inner container, each completely different moldings to manufacture, which also, such as in the DE 39 32 459 C2 for the cooling air passage 27, have a complex shape.

Vorzugsweise ist das erste Kanalteil aus einem Rohr gebildet, das an einer Verbindungsstelle mit einem der zweiten Kanalteile in seiner Rohrwandung eine Durchgangsöffnung für die Kühlluft aufweist. Besonders bevorzugt besitzt das Rohr einen kreisförmigen Querschnitt. Dies ist kostengünstig in der Herstellung und ermöglicht eine einfache Gestaltung der Verbindungen des ersten Kanalteils mit den zweiten Kanalteilen. Es ist jedoch auch möglich, ein Rohr mit viereckigem, beispielsweise quadratischem Querschnitt, vorzusehen.Preferably, the first channel part is formed from a tube which has a passage opening for the cooling air at a connection point with one of the second channel parts in its tube wall. Particularly preferably, the tube has a circular cross-section. This is inexpensive to manufacture and allows a simple design of the connections of the first channel part with the second channel parts. However, it is also possible to provide a tube with a square, for example square cross-section.

Bei dem erfindungsgemäßen Kältegerät sind die zweiten Kanalteile vorzugsweise aus Hartschaum geformt. Vorteil hiervon ist, dass es sich um ein leichtes Material handelt, das kostengünstig in der Herstellung ist. Zudem besitzt es gute wärmeisolierende Eigenschaften. Besonders bevorzugt wird als Material für die zweiten Kanalteile expandiertes Polystyrol (Styropor) verwendet. Dieses Material wird von den zumeist für das Ausschäumen des wärmeisolierenden Gehäuses verwendeten Polyurethanschäumen gut benetzt.In the refrigerator according to the invention, the second channel parts are preferably formed from hard foam. Advantage of this is that it is a lightweight material that is inexpensive to manufacture. In addition, it has good heat insulating properties. It is particularly preferred to use expanded polystyrene (styrofoam) as material for the second channel parts. This material is well wetted by the polyurethane foams used mostly for foaming the heat-insulating housing.

Vorzugsweise umgreifen die zweiten Kanalteile das erste Kanalteil über seinen gesamten Umfang. Hieraus ergibt sich eine hohe mechanische Stabilität der Verbindungen zwischen dem ersten Kanalteil und den zweiten Kanalteilen. Dies ist insbesondere dann von Bedeutung, wenn die zweiten Kanalteile aus einem geschäumten Material nur relativ geringer mechanischer Festigkeit gefertigt sind.Preferably, the second channel parts surround the first channel part over its entire circumference. This results in a high mechanical stability of the connections between the first channel part and the second channel parts. This is especially true of Meaning, if the second channel parts are made of a foamed material only relatively low mechanical strength.

Bei dem erfindungsgemäßen Kältegerät umfasst der Kühlluftkanal vorzugsweise ein drittes Kanalteil, das eine Verbindung zwischen dem ersten Kanalteil und dem Innenbehälter herstellt und auf ein offenes Ende des erste Kanalteils aufgesteckt ist. Somit stellt das dritte Kanalteil nicht nur eine Verbindung zwischen dem ersten Kanalteil und Luftdurchgangsöffnungen im Innenbehälter her, sondern kann zugleich dazu verwendet werden, das offene Ende des ersten Kanalteils schaumdicht zu verschließen.In the refrigerating appliance according to the invention, the cooling air duct preferably comprises a third duct part, which establishes a connection between the first duct part and the inner container and is attached to an open end of the first duct part. Thus, the third channel part not only establishes a connection between the first channel part and air passage openings in the inner container, but at the same time can be used to close the open end of the first channel part in a foam-tight manner.

Vorzugsweise weist das dritte Kanalteil eine Aussparung zur Aufnahme des offenen Endes des ersten Kanalteils auf, wobei durch Entfernen eines Bodens der Aussparung das dritte Kanalteil in das zweite Kanalteil überführbar ist. D.h. bei dem zweiten Kanalteil fehlt der Boden in der Aussparung. Damit kann das erste Kanalteil mit einem freien Ende in die Aussparung des zweiten Kanalteils eingeführt und durch diese hindurchgeführt werden, sodass eine kreuzende Anordnung von erstem Kanalteil und zweitem Kanalteil möglich ist, d.h. das zweite Kanalteil sozusagen auf das erste Kanalteil aufgefädelt werden kann. Vorzugsweise ist der Boden der Aussparung durch Sollbruchstellen begrenzt. Damit kann während der Montage des Kühlluftkanals der Boden der Aussparung auf einfache Weise herausgebrochen werden, um somit das zweite Kanalteil zu erhalten. Vorteil hiervon ist, dass lediglich nur ein Kanalteil gefertigt werden muss, das sowohl das dritte Kanalteil als auch das zweite Kanalteil in sich verkörpert.Preferably, the third channel part has a recess for receiving the open end of the first channel part, wherein the third channel part can be converted into the second channel part by removing a bottom of the recess. That in the second channel part, the bottom is missing in the recess. Thus, the first channel part can be inserted with a free end into the recess of the second channel part and passed through it, so that a crossing arrangement of the first channel part and the second channel part is possible, i. the second channel part can be threaded onto the first channel part, so to speak. Preferably, the bottom of the recess is limited by predetermined breaking points. Thus, during assembly of the cooling air duct, the bottom of the recess can be broken out in a simple manner, thus obtaining the second duct part. The advantage of this is that only one channel part has to be manufactured, which embodies both the third channel part and the second channel part in itself.

Bei dem erfindungsgemäßen Kältegerät weist der Innenbehälter schaumseitig vorzugsweise Ausformungen auf, die die Lage der zweiten Kanalteile und gegebenenfalls des dritten Kanalteils in Bezug auf den Innenbehälter festlegen. Damit können während des Ausschäumens des Gehäuses des Kältegeräts die zweiten Kanalteile bzw. das dritte Kanalteil auf einfache Weise in gewünschter Lage zum Innenbehälter gehalten werden. Um die Kanalteile umlaufende Vorsprünge sind besonders vorteilhaft, da diese verhindern, dass während des Ausschäumens Isolierschaum zwischen den Innenbehälter und das zweite Kanalteil gelangen kann, der die Luftdurchgangsöffnungen im Innenbehälter zusetzen könnte.In the refrigerator according to the invention, the inner container foam-side preferably on formations that define the position of the second channel parts and optionally the third channel part with respect to the inner container. Thus, during the foaming of the housing of the refrigerator, the second channel parts or the third channel part can be kept in a desired manner to the inner container in a simple manner. Around the channel parts encircling projections are particularly advantageous because they prevent that during foaming insulating foam between the inner container and the second channel part can pass, which could enforce the air passage openings in the inner container.

Vorzugsweise speist jedes der zweiten Kanalteile zumindest zwei Luftdurchgangsöffnungen im Innenbehälter, die quer zur Längsrichtung des ersten Kanalteils voneinander beabstandet sind. Dies ermöglicht eine Verteilung der Kühlluft über die gesamte Breite des Innenraums des Kältegeräts.Preferably, each of the second channel parts feeds at least two air passage openings in the inner container, which are spaced apart transversely to the longitudinal direction of the first channel part. This allows a distribution of the cooling air over the entire width of the interior of the refrigerator.

Bei dem erfindungsgemäßen Kältegerät sind die Luftdurchgangsöffnungen im Innenbehälter vorzugsweise in zwei verschiedene Richtungen orientiert. Somit kann die Kühlluft in verschiedene Richtungen ausgeblasen werden. Damit besteht die Möglichkeit, auch bei einem geringen Abstand der quer zur Längsrichtung des ersten Kanalteils angeordneten Luftdurchgangsöffnungen die Kühlluft über die gesamte Breite des Innenraums des Kältegeräts zu verteilen. In verschiedene Richtungen orientierte Luftdurchgangsöffnungen können beispielsweise geschaffen werden, indem ein Wandabschnitt des Innenbehälters, der die Luftdurchgangsöffnungen umfasst, in horizontaler Richtung zum Innenraum hin gekrümmt bzw. gebogen ausgestaltet wird.In the refrigerator according to the invention, the air passage openings in the inner container are preferably oriented in two different directions. Thus, the cooling air can be blown out in different directions. This makes it possible to distribute the cooling air over the entire width of the interior of the refrigeration device, even at a small distance between the air passage openings arranged transversely to the longitudinal direction of the first channel part. Air passage openings oriented in different directions can be provided, for example, by making a wall section of the inner container comprising the air passage openings curved or bent in the horizontal direction toward the inner space.

Vorzugsweise weist jedes der zweiten Kanalteile Luftdurchgangsöffnungen auf, die den Luftdurchgangsöffnungen im Innenbehälter zugeordnet und von einer an dem Innenbehälter flächig anliegenden Wandung des zweiten Kanalteils begrenzt sind. Diese Ausführungsform besitzt gegenüber einer Ausführungsform, bei der das zweite bzw. dritte Kanalteil zum Innenbehälter hin offen ausgestaltet ist, eine höhere Steifigkeit. Die Festlegung der zweiten Kanalteile bzw. des dritten Kanalteils am Innenbehälter zum Ausschäumen des Gehäuses des Kältegeräts wird hierdurch vereinfacht.Preferably, each of the second channel parts has air passage openings which are assigned to the air passage openings in the inner container and are delimited by a wall of the second channel part lying flat against the inner container. This embodiment has a higher rigidity than an embodiment in which the second or third channel part is designed to be open toward the inner container. The determination of the second channel parts or the third channel part on the inner container for foaming the housing of the refrigerator is thereby simplified.

Bei dem erfindungsgemäßen Kältegerät weist das erste Kanalteil in seiner Wandung Sollbruchstellen zum Herausbrechen von Luftdurchgangsöffnungen auf. Dies ermöglicht, das erste Kanalteil für verschiedene Typen von Kältegeräten einzusetzen und je nach Bedarf Luftdurchgangsöffnungen aus dem ersten Kanalteil herauszubrechen. 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.In the refrigerator according to the invention, the first channel part in its wall on predetermined breaking points for breaking out of air passage openings. This makes it possible to use the first channel part for different types of refrigerators and, as required, break out air passage openings from the first channel part. 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.

Weitere Ausgestaltungen und Vorteile der vorliegenden Erfindung werden im Folgenden anhand verschiedener Ausführungsformen der vorliegenden Erfindung erläutert. Dabei zeigt:

Fig. 1
einen vertikalen Schnitt eines Kältegeräts 1 gemäß der Erfindung; mit einem in einer Gehäusewandung 27 integrierten Kühlluftkanal 23;
Fig. 2
einen horizontalen Schnitt durch den in der Gehäusewandung 27 integrierten Kühlluftkanal 23;
Fig. 3
einen Blick auf die Gehäusewandung 27 vom Innenraum 3 des Kältegeräts 1 von Fig. 1 aus gesehen;
Fig. 4
ein erstes Kanalteil 25 in seitlicher Ansicht;
Fig. 5
ein drittes Kanalteil 28 in Draufsicht;
Fig. 6
einen Schnitt durch das dritte Kanalteil 28 aus Fig. 5 gemäß einer Schnittlinie A-A;
Fig. 7
einen der Fig. 2 entsprechenden Schnitt bei einem Kältegerät 1 gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung;
Fig. 8
einen Schnitt gemäß einer Schnittlinie B-B von Fig. 7;
Fig. 9
einen der Fig. 2 entsprechenden Schnitt bei einem Kältegerät 1 gemäß einer bevorzugten Ausführungsform der vorliegenden Erfindung;
Fig. 10
einen der Fig. 2 entsprechenden Schnitt bei einem Kältegerät 1 und nicht Gegenstand der vorliegenden Erfindung;
Further embodiments and advantages of the present invention are explained below with reference to various embodiments of the present invention. Showing:
Fig. 1
a vertical section of a refrigerator 1 according to the invention; with a built-in a housing 27 cooling air channel 23;
Fig. 2
a horizontal section through the integrated in the housing 27 cooling air duct 23;
Fig. 3
a look at the housing 27 from the interior 3 of the refrigerator 1 of Fig. 1 seen from;
Fig. 4
a first channel part 25 in a lateral view;
Fig. 5
a third channel part 28 in plan view;
Fig. 6
a section through the third channel part 28 from Fig. 5 according to a section line AA;
Fig. 7
one of the Fig. 2 corresponding section in a refrigerator 1 according to a preferred embodiment of the present invention;
Fig. 8
a section along a section line BB of Fig. 7 ;
Fig. 9
one of the Fig. 2 corresponding section in a refrigerator 1 according to a preferred embodiment of the present invention;
Fig. 10
one of the Fig. 2 corresponding section in a refrigerator 1 and not the subject of the present invention;

Der vertikale Schnitt der Fig. 1 zeigt als Beispiel eines erfindungsgemäßen Kältegeräts 1 ein Haushalts-Kältegerät 1 in No-Frost-Technik. Das Kältegerät 1 umfasst zwei Innenräume 2 und 3, die in einem wärmeisolierenden Gehäuse 4 angeordnet und über zwei getrennte und ebenfalls wärmeisolierende Türen 5 und 6 zugänglich sind. Der oben angeordnete Raum 2 ist als Tiefgefrierraum 2 und der unten angeordnete Raum 3 als Kühlraum 3 ausgebildet. Die Innenräume 2 und 3 sind von Innenbehältern 7 und 8 gebildet, die aus Kunststoffplatinen geformt sind. Zwischen einem aus Metallblech geformten Außenbehälter 9 und den Innenbehälter 7 und 8 ist ein wärmeisolierender Schaum 10 eingebracht.The vertical section of the Fig. 1 shows as an example of a refrigeration device 1 according to the invention a household refrigeration device 1 in no-frost technology. The refrigeration device 1 comprises two Interiors 2 and 3, which are arranged in a heat-insulating housing 4 and accessible via two separate and also heat-insulating doors 5 and 6. The space 2 arranged at the top is designed as a freezing space 2 and the space 3 arranged below as a cooling space 3. The interiors 2 and 3 are formed by inner containers 7 and 8, which are formed of plastic boards. Between a formed of sheet metal outer container 9 and the inner container 7 and 8, a heat-insulating foam 10 is introduced.

Das Kältegerät 1 ist in bekannter Weise mit einem Kompressor-Kühlaggregat ausgestattet, von dessen einzelnen Komponenten hier der Einfachheit halber nur der in einem Maschinenraum 60 in einem unteren, rückwärtigen Bereich des Kältegeräts 1 des wärmeisolierenden Gehäuses 4 angeordnete Kältemittel-Verdichter 61 und ein Kältemittel-Verdampfer 16 dargestellt sind. Der Verdampfer 16 ist in einer Kammer 14 in einem zwischen den Innenbehältern 6 und 7 befindlichen wärmeisolierenden Zwischenboden 12 angeordnet.The refrigeration device 1 is equipped in a known manner with a compressor-cooling unit, of the individual components here for the sake of simplicity only in a machine room 60 in a lower, rear portion of the refrigerator 1 of the heat-insulating housing 4 arranged refrigerant compressor 61 and a refrigerant Evaporator 16 are shown. The evaporator 16 is arranged in a chamber 14 in a heat insulating intermediate bottom 12 located between the inner containers 6 and 7.

Zur Kühlung der Innenräume 2 und 3 wird über Kanäle 17 und 18 Luft aus den Innenräumen 2 und 3 angesaugt und über den in der Kammer 14 befindlichen Verdampfer 16 geführt, wo sie gekühlt und getrocknet wird. Die gekühlte und getrocknete Kühlluft wird zum einen in einen nach oben führenden Kühlluftkanal 20 ausgestoßen und gelangt von dort durch Ausblasöffnungen 21 im Innenbehälter 7 in den Innenraum 2. Zum anderen wird die vom Verdampfer 16 gekühlte und getrocknete Kühlluft in einen zum Innenraum 3 nach unten führenden Kühlluftkanal 23 ausgestoßen.To cool the interiors 2 and 3, air is sucked out of the interiors 2 and 3 via ducts 17 and 18 and passed over the evaporator 16 located in the chamber 14, where it is cooled and dried. The cooled and dried cooling air is firstly discharged into an upwardly leading cooling air channel 20 and from there through exhaust openings 21 in the inner container 7 in the interior 2. On the other hand, the cooled and dried by the evaporator 16 cooling air in a leading to the interior 3 down Cooling air duct 23 ejected.

Die Steuerung der Kühlluftzufuhr zu den Innenräumen 2 und 3 erfolgt in bekannter Weise über Thermostate und Klappen, die hier jedoch nicht dargestellt sind. Eine ebenfalls nicht dargestellte Heizung ist im Zwischenboden 12 zur Enteisung des Verdampfers 16 vorhanden.The control of the cooling air supply to the interiors 2 and 3 in a known manner via thermostats and flaps, which are not shown here. A heater, also not shown, is present in the intermediate bottom 12 for deicing of the evaporator 16.

Der zum Innenraum 3 hin führende Kühlluftkanal 23 ist aus einem ersten, langgestreckten Kanalteil 25, hier einer vertikal angeordneten Rohrleitung 25, und mehreren identischen, zweiten Kanalteilen 26 gebildet, die entlang des ersten Kanalteils 25 angeordnet sind und dieses kreuzen. Mit ihrem unteren, offenen Ende 29 ist die Rohrleitung 25 in ein drittes Kanalteil 28 eingesteckt. Die zweiten Kanalteile 26 und das dritte Kanalteil 28 sind horizontal ausgerichtet und verbinden jeweils die Rohrleitung 25 mit im Innenbehälter 8 befindlichen Luftdurchgangsöffnungen 37, die hier als Ausblasöffnungen 37 für die Kühlluft fungieren. Die Ausblasöffnungen 37 befinden sich in verschiedenen Höhen des Innenraums 3, sodass die Kühlluft gleichmäßig über den gesamten Innenraum 3 verteilt werden kann. Dies ist insbesondere dann von Bedeutung, wenn durchgehende Tragplatten für Kühlgüter einen vertikalen Luftaustausch im Innenraum 3 behindern. Die Rohrleitung 25 sowie die zweiten Kanalteile 26 und das dritte Kanalteil 28 sind in der Rückwand 27 des Gehäuses 4 in wärmeisolierendem Schaum 10 eingebettet.The cooling air duct 23 leading to the interior 3 is formed from a first, elongated duct part 25, in this case a vertically arranged duct 25, and a plurality of identical, second duct parts 26, which are arranged along the first duct part 25 and intersect this. With its lower, open end 29, the pipe 25 is inserted into a third channel part 28. The second channel parts 26 and the third channel part 28 are aligned horizontally and connect the pipe 25 with located in the inner container 8 air passage openings 37, which act here as exhaust openings 37 for the cooling air. The exhaust openings 37 are located at different heights of the interior 3, so that the cooling air can be distributed uniformly over the entire interior 3. This is particularly important if continuous support plates for refrigerated goods hinder a vertical exchange of air in the interior 3. The pipe 25 and the second channel parts 26 and the third channel part 28 are embedded in the rear wall 27 of the housing 4 in heat-insulating foam 10.

Die Rohrleitung 25 besitzt, wie aus Fig. 2 zu ersehen ist, einen kreisförmigen Querschnitt. Es ist jedoch abweichend von der dargestellten Ausführungsform auch denkbar, eine Rohrleitung 25 mit einem rechteckigen, beispielsweise quadratischen Querschnitt vorzusehen. Als Material für die Rohrleitung 25 kann beispielsweise Kunststoff verwendet werden. Damit kann die Rohrleitung 25 kostengünstig gefertigt werden und besitzt zudem ein nur geringes Gewicht.The pipe 25 has, as out Fig. 2 can be seen, a circular cross-section. However, it is also conceivable deviating from the illustrated embodiment, to provide a pipe 25 with a rectangular, for example square cross-section. As a material for the pipe 25, for example, plastic can be used. Thus, the pipe 25 can be manufactured inexpensively and also has a low weight.

Die zweiten Kanalteile 26 und das dritte Kanalteil 28 sind, wie in Fig. 1 dargestellt, zweiteilig ausgestaltet. Sie umfassen jeweils eine untere Schale 30 und eine obere Schale 31, die jeweils aus Hartschaum, beispielsweise aus expandiertem Polystyrol, geformt und schaumdicht, beispielsweise durch Kleben oder Stecken, miteinander verbunden sind.The second channel parts 26 and the third channel part 28 are as in FIG Fig. 1 shown, designed in two parts. They each comprise a lower shell 30 and an upper shell 31, each made of rigid foam, for example made of expanded polystyrene, molded and foam-tight, for example by gluing or sticking, are interconnected.

Fig. 2 zeigt einen horizontalen Schnitt durch eines der zweiten Kanalteile 26 von Fig. 1. Um das zweite Kanalteil 26 mit der Rohrleitung 25 verbinden zu können, besitzt das zweite Kanalteil 26 eine Aussparung 33, hier in Form eines Durchgangsloches 33, in das die Rohrleitung 25 eingeschoben ist. Damit umgreift das zweite Kanalteil 26 die Rohrleitung 25 über ihren gesamten Umfang, wodurch eine hohe Stabilität der Verbindung beider Teile resultiert. Abweichend von der dargestellten Ausführungsform mit einem die Rohrleitung 25 aufnehmenden Durchgangsloch 33, ist es auch möglich, beispielsweise über Rast- oder Klammermittel, das zweite Kanalteil 26 an der Rohrleitung 25 zu befestigen. Fig. 2 shows a horizontal section through one of the second channel parts 26 of Fig. 1 , In order to connect the second channel part 26 with the pipe 25, the second channel part 26 has a recess 33, here in the form of a through hole 33 into which the pipe 25 is inserted. Thus, the second channel part 26 surrounds the pipe 25 over its entire circumference, resulting in a high stability of the connection between the two parts. Notwithstanding the illustrated embodiment with the pipe 25 receiving through hole 33, it is also possible, for example via locking or clamping means, to secure the second channel part 26 to the pipe 25.

Auf der Höhe jedes zweiten Kanalteils 26 besitzt die Rohrleitung 25 in ihrer Wandung Luftdurchgangsöffnungen 34, die in einen Raum 35 des zweiten Kanalteils 26 münden, der zur Verteilung der Kühlluft auf die Ausblasöffnungen 37 im Innenbehälter 8 dient. Der Raum 35 ist quer zur Längsrichtung der Rohrleitung 25, d.h. in seiner Breite, so dimensioniert, dass das zweite Kanalteil zumindest zwei Luftdurchgangsöffnungen 37 im Innenbehälter 8 speist, die quer zur Längsrichtung der Rohrleitung 25 angeordnet sind. Abweichend von der dargestellten Ausführungsform besteht auch die Möglichkeit, drei oder mehr Luftdurchgangsöffnungen 37 mit einem zweiten Kanalteil 26 zu speisen.At the level of each second channel part 26, the pipe 25 has in its wall air passage openings 34, which open into a space 35 of the second channel part 26, which serves to distribute the cooling air to the exhaust openings 37 in the inner container 8. The Room 35 is dimensioned transversely to the longitudinal direction of the pipeline 25, ie in its width, so that the second channel part feeds at least two air passage openings 37 in the inner container 8, which are arranged transversely to the longitudinal direction of the pipeline 25. Notwithstanding the illustrated embodiment, it is also possible to feed three or more air passage openings 37 with a second channel part 26.

Wie Fig. 2 weiter zeigt, liegt das zweite Kanalteil 26 mit einer den Raum 35 abschließenden Wandung 38 direkt an einem Wandabschnitt 39 des Innenbehälters 8 an. In der Wandung 38 des zweiten Kanalteils 26 befinden sich Luftdurchgangsöffnungen 40, die mit den Luftdurchgangsöffnungen 37 im Innenbehälter 8 korrespondieren. Die Wandung 38 des zweiten Kanalteils 26 und der Wandabschnitt 39 des Innenbehälters 8 sind in horizontaler Richtung zum Innenraum 3 hin gekrümmt ausgebildet. Durch die zum Innenraum 3 hin gebogen geformte Ausgestaltung des Wandabschnitts 39 sind die Ausblasöffnungen 37 im Innenbehälter 8 in zwei verschiedene Richtungen orientiert, sodass die Kühlluft in verschiedene Richtungen ausgeblasen wird. Somit besteht die Möglichkeit, die Kühlluft auch bei einem geringen horizontalen Abstand der Ausblasöffnungen 37 im Innenbehälter 8 über die gesamte Breite des Innenraums 3 des Kältegeräts 1 zu verteilen.As Fig. 2 further shows, the second channel portion 26 is located with a wall 35 concluding the space 38 directly to a wall portion 39 of the inner container 8 at. In the wall 38 of the second channel part 26 are air passage openings 40 which correspond to the air passage openings 37 in the inner container 8. The wall 38 of the second channel part 26 and the wall portion 39 of the inner container 8 are formed curved in the horizontal direction to the inner space 3 out. As a result of the design of the wall section 39 which is bent towards the interior 3, the blow-out openings 37 in the inner container 8 are oriented in two different directions, so that the cooling air is blown out in different directions. Thus, it is possible to distribute the cooling air even at a small horizontal distance of the exhaust openings 37 in the inner container 8 over the entire width of the interior 3 of the refrigerator 1.

An den Rändern des Wandabschnitts 39 des Innenbehälters 8 befinden sich schaumseitig Ausformungen 42 in Form von umlaufenden Vorsprüngen 42, die zur Positionierung und Festlegung des zweiten Kanalteils 26 am Innenbehälter 8 während des Ausschäumens des Gehäuses 4 mit isolierenden Schaum 10 dienen. Zudem verhindern die umlaufenden Vorsprünge 42, dass beim Ausschäumen des Gehäuses 4 Schaum 10 in den Raum zwischen den Innenbehälter 8 und der daran anliegenden Wandung 38 des zweiten Kanalteils 26 gelangen kann, der die Ausblasöffnungen 37 und Luftdurchgangsöffnungen 40 verschließen könnte.At the edges of the wall portion 39 of the inner container 8 are foam-side formations 42 in the form of circumferential projections 42, which serve for positioning and fixing the second channel part 26 on the inner container 8 during foaming of the housing 4 with insulating foam 10. In addition, prevent the circumferential projections 42 that when foaming the housing 4 foam 10 in the space between the inner container 8 and the adjoining wall 38 of the second channel portion 26 can pass, which could close the exhaust openings 37 and air passage openings 40.

Fig. 3 zeigt einen Blick auf den Innenbehälter 8 vom Innenraum 3 aus gesehen in einer gegenüber der Fig. 2 verkleinerten Ansicht. Zu erkennen sind hier die Ausblasöffnungen 37 im Innenbehälter 8, die jeweils paarweise in unterschiedlicher Höhe des Innenbehälters 8 angeordnet sind. Die unterbrochenen Linien zeigen die umlaufenden Vorsprünge 42 an der dem Schaum 10 zugewandten Rückwand des Innenbehälters 8. Fig. 3 shows a view of the inner container 8 seen from the interior 3 in a relation to the Fig. 2 reduced view. Evident here are the exhaust openings 37 in the inner container 8, which are each arranged in pairs at different heights of the inner container 8. The broken lines show the circumferential projections 42 on the foam 10 facing the rear wall of the inner container. 8

Die Grenzen der horizontalen Ausdehnung des zum Innenraum 3 hin gebogen geformten Wandabschnitts 39 des Innenbehälters 8 sind mit der Bezugsziffer 43 bezeichnet.The boundaries of the horizontal extent of the wall portion 39 of the inner container 8 that is bent toward the inner space 3 are designated by the reference number 43.

Der Innenbehälter 8 kann beispielsweise durch Tiefziehen einer Kunststoffplatine gefertigt werden, wobei die Ausblasöffnungen 37 durch Stanzen herausgetrennt werden.The inner container 8 can be made for example by deep drawing a plastic board, wherein the exhaust openings 37 are cut out by punching.

Fig. 4 zeigt in einer Seitenansicht eine Rohrleitung 25, die unter anderem zum Einbau in ein Kältegerät 1 gemäß der vorangehenden Fig. 1 bis 3 bestimmt ist. Die Rohrleitung 25 weist in ihrer Wandung mehrere kreisförmige Kerbungen 44, 44' auf, die an der Rohrwandung Sollbruchstellen erzeugen. Durch Herausbrechen von den Kerbungen 44, 44' umgebener, kreisförmiger Wandabschnitte 45, 45' aus der Rohrwand können die in Fig. 2 gezeigten Luftdurchgangsöffnungen 34 in der Rohrleitung 25 geschaffen werden und damit ein oder mehrere Stellen, an denen jeweils ein zweites Kanalteil 26 oder das dritte Kanalteil 28 schaumdicht und für die Kühlluft durchgängig montiert werden kann. Der Satz von Kerbungen 44 und der Satz von Kerbungen 44' sind über den Rohrumfang betrachtet versetzt zueinander angeordnet. In Fig. 4 beträgt der Winkel zwischen beiden Sätzen von Kerbungen 44 und 44' in etwa 90°. Zudem sind die Kerbungen 44 in Längsrichtung der Rohrleitung 25, d.h. hier in vertikaler Richtung, mit einem größeren Abstand in die Rohrleitung 25 eingebracht als die Kerbungen 44'. Damit besteht die Möglichkeit, diese Rohrleitungsbauform 25 für mehrere verschiedene Modelle von Kältegeräten einzusetzen, bei denen die Ausblasöffnungen 37 in vertikaler Richtung in verschiedenen Abständen voneinander angeordnet sind. Fig. 4 shows a side view of a pipe 25, which inter alia for installation in a refrigeration device 1 according to the preceding Fig. 1 to 3 is determined. The pipe 25 has in its wall a plurality of circular notches 44, 44 ', which generate predetermined breaking points on the pipe wall. By breaking away from the notches 44, 44 ', circular wall sections 45, 45' from the pipe wall, the in Fig. 2 shown air passage openings 34 are created in the pipe 25 and thus one or more locations where each a second channel part 26 or the third channel part 28 foam-tight and can be mounted continuously for the cooling air. The set of serrations 44 and the set of serrations 44 'are offset from each other as viewed across the tube circumference. In Fig. 4 is the angle between two sets of notches 44 and 44 'in about 90 °. In addition, the notches 44 in the longitudinal direction of the pipe 25, ie here in the vertical direction, introduced with a greater distance in the pipe 25 as the notches 44 '. This makes it possible to use this type of piping 25 for several different models of refrigerators, in which the exhaust openings 37 are arranged in the vertical direction at different distances from each other.

Zum Einbau des Kühlluftkanals 23 in das Kältegerät 1 gemäß der Fig. 1 bis 3 werden aus der in Fig. 4 dargestellten Rohrleitung 25 die kreisförmigen Wandabschnitte 45 herausgebrochen, um die in Fig. 1 und 2 gezeigten Luftdurchgangsöffnungen 34 zu schaffen. Gegebenenfalls ist die Rohrleitung 25 in ihrer Länge zu kürzen.For installation of the cooling air duct 23 in the refrigerator 1 according to the Fig. 1 to 3 will be out of the Fig. 4 shown piping 25, the circular wall portions 45 broken out to the in Fig. 1 and 2 to create air passage openings 34 shown. Optionally, the pipe 25 is to be shortened in length.

Statt einer Rohrleitung 25 mit Sollbruchstellen, wie in Fig. 4 gezeigt, kann auch eine Rohrleitung 25 verwendet werden, in die entsprechend dem vertikalen Abstand der Ausblasöffnungen 37 im Innenbehälter 8 Luftdurchgangsöffnungen 34 aus der Rohrleitungswandung ausgestanzt werden.Instead of a pipe 25 with predetermined breaking points, as in Fig. 4 shown, a pipe 25 may be used, in which according to the vertical distance of the exhaust openings 37 in the inner container 8 air passage openings 34 are punched out of the pipe wall.

In den Fig. 5 und 6 ist das dritte Kanalteil 28 näher dargestellt. Dieses ist, wie Fig. 1 zeigt, auf das untere, offene Ende der Rohrleitung 25 aufgesteckt. Dabei zeigt die Fig. 5 das dritte Kanalteil 28 in Draufsicht und die Fig. 6 in einem Schnitt gemäß einer Schnittlinie A-A von Fig. 5. Das dritte Kanalteil 28 besitzt denselben Aufbau wie das in Fig. 2 in einer Schnittansicht näher dargestellte zweite Kanalteil 26. Im Unterschied zu dem zweiten Kanalteil 26 umfasst die Aussparung 33 des dritten Kanalteils 28 einen Boden 47, der die Aussparung 33 nach unten schaumdicht verschließt. Die Aussparung 33 ist somit als kreisförmiges Sackloch 33 ausgestaltet, in das das offene Ende 29 der Rohrleitung 25 eingesteckt wird. Durch Kerbungen 48, die Sollbruchstellen zwischen dem Boden 47 und dem übrigen dritten Kanalteil 28 bilden, kann der Boden 47 durch Herausbrechen leicht entfernt werden. Hierdurch kann das dritte Kanalteil 28 auf einfache Weise in das zweite Kanalteil 26 überführt werden. Durch Entfernen des Bodens 47 entsteht ein Durchgangsloch 33, durch das die Rohrleitung 25 hindurchgeschoben werden kann.In the FIGS. 5 and 6 the third channel part 28 is shown in more detail. This is how Fig. 1 shows, attached to the lower, open end of the pipe 25. It shows the Fig. 5 the third channel part 28 in plan view and the Fig. 6 in a section along a section line AA of Fig. 5 , The third channel part 28 has the same structure as that in FIG Fig. 2 In contrast to the second channel part 26, the recess 33 of the third channel part 28 comprises a bottom 47, which closes the recess 33 in a foam-tight manner downwards. The recess 33 is thus configured as a circular blind hole 33 into which the open end 29 of the pipe 25 is inserted. By notches 48 which form predetermined breaking points between the bottom 47 and the remaining third channel part 28, the bottom 47 can be easily removed by breaking out. As a result, the third channel part 28 can be converted into the second channel part 26 in a simple manner. By removing the bottom 47 creates a through hole 33 through which the pipe 25 can be pushed.

Wie Fig. 6 weiter zeigt, weisen die untere Schale 30 und die obere Schale 31 komplementär ausgebildete Ausformungen 32 und 36 auf, sodass die Schalen 30 und 31 auf einfache Weise durch Zusammenstecken miteinander verbunden werden können.As Fig. 6 Further, the lower shell 30 and the upper shell 31 have complementary shaped formations 32 and 36, so that the shells 30 and 31 can be easily connected to each other by plugging together.

Die Montage des Kühlluftkanals 23 im Kältegerät 1 nach Fig. 1 erfolgt, indem zunächst aus der in Fig. 4 gezeigten Rohrleitung 25 die Wandabschnitte 45 herausgebrochen werden, um die in Fig. 1 und 2 dargestellten Luftdurchgangsöffnungen 34 zu schaffen. Als nächstes werden die zweite Kanalteile 26 an der Rohrleitung 25 montiert. Dazu wird die Rohrleitung 25 in die Durchgangslöcher 33 der zweiten Kanalteile 26 eingeschoben und die zweiten Kanalteile 26 dann auf Höhe der Luftdurchgangsöffnungen 34 angeordnet. Das untere, offene Ende der Rohrleitung 29 wird in das Sackloch 33 des dritten Kanalteils 28 eingesteckt. Anschließend werden die zweiten Kanalteile 26 und das dritte Kanalteil 28 mittels der Vorsprünge 42 an der Rückwand des Innenbehälters 8 positioniert und der Hohlraum zwischen dem Innenbehälter 8 und dem Außenbehälter 9 des Kältegeräts 1 mit wärmeisolierenden Schaum 10 ausgefüllt. Damit sind die Rohrleitung 25, die zweiten Kanalteile 26 und das dritte Kanalteil 28 in dem Schaum 10 fest eingebettet und in ihrer Lage festgelegt. Selbstverständlich besteht auch die Möglichkeit, zunächst die zweiten Kanalteile 26 und das dritte Kanalteil 28 an der Rückwand des Innenbehälters 8 an den Vorsprüngen 42 zu montieren und anschließend die Rohrleitung 25 durch die Durchgangslöcher 33 der zweiten Kanalteile 26 hindurch und das offene Ende 29 der Rohrleitung 25 in das Sackloch 33 des dritten Kanalteils 28 einzustecken.The installation of the cooling air duct 23 in the refrigeration device 1 after Fig. 1 is done by first from the in Fig. 4 shown pipe 25, the wall portions 45 are broken out to the in Fig. 1 and 2 to create air passage openings 34 shown. Next, the second channel parts 26 are mounted on the pipe 25. For this purpose, the pipe 25 is inserted into the through holes 33 of the second channel parts 26 and the second channel parts 26 are then arranged at the level of the air passage openings 34. The lower, open end of the pipe 29 is inserted into the blind hole 33 of the third channel part 28. Subsequently, the second channel parts 26 and the third channel part 28 are positioned by means of the projections 42 on the rear wall of the inner container 8 and the cavity between the inner container 8 and the outer container 9 of the refrigerator 1 filled with heat-insulating foam 10. Thus, the pipe 25, the second channel parts 26 and the third channel part 28 are firmly embedded in the foam 10 and fixed in position. Of course, it is also possible first to mount the second channel parts 26 and the third channel part 28 on the rear wall of the inner container 8 to the projections 42 and then the pipe 25 through the Through holes 33 of the second channel parts 26 therethrough and the open end 29 of the pipe 25 in the blind hole 33 of the third channel part 28 to insert.

Abweichend, und nicht Gegenstand der vorliegenden Erfindung, von der in Fig. 1 dargestellten Ausführungsform, bei der in die Rohrleitung 25 auf Höhe des dritten Kanalteils 28 ein Luftdurchgangsloch 34 eingebracht ist, besteht auch die Möglichkeit, was in Fig. 4 in unterbrochener Linie dargestellt ist, die Rohrleitung 25 an ihrem unteren Ende 29 schräg abzutrennen, um einen Luftdurchgang vom Inneren der Rohrleitung 25 zum dritten Kanalteil 28 zu schaffen.Notwithstanding, and not the subject of the present invention, from the in Fig. 1 illustrated embodiment in which in the pipe 25 at the level of the third channel portion 28, an air passage hole 34 is introduced, there is also the possibility of what in Fig. 4 shown in broken line, obliquely separate the pipe 25 at its lower end 29 to provide an air passage from the interior of the pipe 25 to the third channel part 28.

Abweichend von der in Fig. 1 dargestellten Ausführungsform, und nicht Gegenstand der vorliegenden Erfindung, ist es auch möglich, was jedoch nicht dargestellt ist, den Kühlluftkanal 23 ohne das dritte Kanalteil 28 zu bilden, indem lediglich identische, zweite Kanalteile 26 entlang der Rohrleitung 25 verteilt angeordnet werden, wobei das untere, offene Ende 29 der Rohrleitung 25 frei bleibt. Dieses kann durch einen Deckel oder Stopfen etc. schaumdicht verschlossen werden, sodass beim Ausschäumen des Gehäuses 4 kein Schaum 10 in die Rohrleitung 25 eindringen kann.Notwithstanding the in Fig. 1 illustrated embodiment, and not the subject of the present invention, it is also possible, but not shown, to form the cooling air duct 23 without the third channel part 28 by only identical, second channel members 26 are arranged distributed along the pipe 25, the lower , open end 29 of the pipe 25 remains free. This can be closed foam-tight by a lid or plug, etc., so that when foaming the housing 4 no foam 10 can penetrate into the pipe 25.

Die Fig. 7 und 8 zeigen eine bevorzugte Ausführungsform der vorliegenden Erfindung. Dabei zeigt die Fig. 7 eine der Fig. 2 entsprechende Schnittansicht, wohingegen Fig. 8 einen Schnitt gemäß der in Fig. 7 angegebenen Schnittlinie B-B zeigt. Bei dieser bevorzugten Ausführungsform umfassen die zweiten Kanalteile 26 und, falls vorhanden, das dritte Kanalteil 28 ebenfalls wie bei der in den Fig. 2 gezeigten Ausführungsform eine Wandung 38, die der Rückwand des Innenbehälters 8 zugewandt ist. Im Unterschied zu der in Fig. 2 dargestellten Ausführungsform umfasst die Wandung 38 jedoch nur eine Luftdurchgangsöffnung 40 in Form eines Langloches 40. Dieses ist einfacher zu fertigen und erfordert keine so hohe Passgenauigkeit wie zwei Luftdurchgangslöcher 40, die in ihrer Lage und Form an die Ausblasöffnungen 37 im Innenbehälter 8 angepasst werden müssen.The FIGS. 7 and 8 show a preferred embodiment of the present invention. It shows the Fig. 7 one of the Fig. 2 corresponding sectional view, whereas Fig. 8 a section according to the in Fig. 7 indicated section line BB shows. In this preferred embodiment, the second channel portions 26 and, if present, the third channel portion 28 also include as in the Fig. 2 shown embodiment, a wall 38 which faces the rear wall of the inner container 8. Unlike the in Fig. 2 However, the wall 38 comprises only one air passage opening 40 in the form of an elongated hole 40. This is easier to manufacture and does not require as high accuracy of fit as two air passage holes 40, which must be adapted in position and shape to the exhaust openings 37 in the inner container 8.

Die Fig. 9 zeigt eine bevorzugte Ausführungsform der vorliegenden Erfindung. Bei dieser ist der Raum 35 der zweiten Kanalteile 26 bzw. des dritten Kanalteils 28 zum Innenbehälter 8 hin offen, d.h. es ist keine den Raum 35 nach vorne abschließende und am Innenabehälter 8 anliegende Wandung 38 vorhanden, wie es bei der ersten und zweiten Ausführungsform gemäß der Fig. 2 und 7, 8 der Fall ist. Somit sind diese Kanalteile einfacher zu fertigen und daher kostengünstiger.The Fig. 9 shows a preferred embodiment of the present invention. In this, the space 35 of the second channel parts 26 and the third channel part 28 to the inner container 8 is open, ie there is no room 35 forwards final and abutting the inner container 8 wall 38 is present, as in the first and second embodiment according to the Fig. 2 and 7, 8 the case is. Thus, these channel parts are easier to manufacture and therefore less expensive.

Fig. 10 zeigt eine der Fig. 2, 7 und 9 entsprechende Schnittansicht einer Ausführungsform die nicht Teil der Erfindung ist. Das erste Kanalteil 25 ist in Form einer Rinne 25 ausgebildet, die mit ihrer offenen Seite an der Rückwand des Innenbehälters 8 anliegt. Im dargestellten Ausführungsbeispiel besitzt die Rinne 25 einen halbkreisförmigen Querschnitt. Fig. 10 shows one of the Fig. 2 . 7 and 9 corresponding sectional view of an embodiment which is not part of the invention. The first channel part 25 is formed in the form of a groove 25 which rests with its open side against the rear wall of the inner container 8. In the illustrated embodiment, the groove 25 has a semicircular cross-section.

Die zweiten Kanalteile 26 und ggf. das dritte Kanalteil 28 sind als schalenförmige Formteile ausgebildet, die ebenfalls wie die Rinne 25 mit ihrer offenen Seite an der Rückwand des Innenbehälters 8 anliegen. Auch hier dienen schaumseitige Ausformungen 42 bzw. Vorsprünge 42 am Innenbehälter 8 zur Positionierung und Festlegung der zweiten Kanalteile 26 bzw. des dritten Kanalteils 28 an dem Innenbehälter 8.The second channel parts 26 and possibly the third channel part 28 are formed as cup-shaped moldings, which also like the groove 25 abut with its open side on the rear wall of the inner container 8. Foam-side formations 42 or projections 42 on the inner container 8 also serve for positioning and fixing the second channel parts 26 and the third channel part 28 on the inner container 8.

Die Rinne 25 weist in ihrer Wandung Öffnungen 34 auf, durch die getrocknete und gekühlte Kühlluft vom Inneren der Rinne 25 in einen vom zweiten Kanalteil 26 oder dritten Kanalteil 28 umschlossenen Raum 35 gelangt. Von diesem wird die Kühlluft durch zwei Luftdurchgangsöffnungen 37 im Innenbehälter 8 in den Innenraum 3 ausgeblasen. Die Luftdurchgangsöffnungen 37 bzw. Ausblasöffnungen 37 sind quer zu Längsrichtung der Rinne 25 voneinander beabstandet.The channel 25 has in its wall openings 34, passes through the dried and cooled cooling air from the interior of the channel 25 in a second channel part 26 or third channel part 28 enclosed space 35. From this, the cooling air is blown through two air passage openings 37 in the inner container 8 in the interior 3. The air passage openings 37 and outlet openings 37 are spaced apart transversely to the longitudinal direction of the channel 25.

Die zweiten Kanalteile 26 bzw. das dritte Kanalteil 28 umfassen jeweils einen Boden 50 und eine in der dargestellten Schnittansicht nicht sichtbare Decke, in denen sich jeweils Aussparungen 33 mit halbkreisförmigem Querschnitt zur Aufnahme der Rinne 25 befinden, die mit ihrer offenen Seite dem Innenbehälter 8 zugewandt sind. Bei dem ggf. vorhandenen dritten Kanalteil 28 ist die untere Aussparung 33 nach unten hin durch einen Boden schaumdicht verschlossen. Durch Herausbrechen dieses Bodens kann das dritte Kanalteil 28 in das zweite Kanalteil 26 umgeformt werden.The second channel parts 26 and the third channel part 28 each include a bottom 50 and a non-visible in the illustrated sectional view ceiling, in each of which recesses 33 are of semicircular cross-section for receiving the channel 25, which faces the inner container 8 with its open side are. In the possibly present third channel part 28, the lower recess 33 is closed foam-tight downwards by a bottom. By breaking out of this bottom, the third channel part 28 can be converted into the second channel part 26.

Der in den vorstehend beschriebenen Ausführungsformen aus erstem Kanalteil 25 und mehreren zweiten Kanalteilen 26 und ggf. einem dritten Kanalteil 28 gebildete Kühlluftkanal 23 dient dazu, die vom Verdampfer 16 getrocknete und gekühlte Kühlluft in den Innenraum 3 des Kältegeräts 1 zu führen. Es ist jedoch auch denkbar, aus den gezeigten Kanalteilen 25, 26 und ggf. 28 einen Kanal zu bilden, der dazu dient, erwärmte, feuchte Luft aus dem Innenraum 3 des Kältegeräts 1 zum Verdampfer 16 zu führen. Ein derartiger Kanal könnte beispielsweise in einer Seitenwand des Kältegeräts 1 integriert werden, wie es beispielsweise in der DE 39 32 459 C2 bei dem die erwärmte Luft zum Verdampfer rückführenden Kanal 26 der Fall ist.The cooling air duct 23 formed in the embodiments described above from the first duct part 25 and a plurality of second duct parts 26 and possibly a third duct part 28 serves to guide the cooling air dried and cooled by the evaporator 16 into the interior 3 of the refrigeration device 1. However, it is also conceivable from the shown channel parts 25, 26 and optionally 28 to form a channel which serves to guide heated, moist air from the interior 3 of the refrigerator 1 to the evaporator 16. Such a channel could for example be integrated in a side wall of the refrigeration device 1, as for example in the DE 39 32 459 C2 in which the heated air to the evaporator recirculating passage 26 is the case.

Claims (13)

  1. Refrigeration appliance (1) with at least one interior chamber (3) surrounded by a thermally insulating housing (4), which interior chamber (3) is cooled by the circulation of cooling air, wherein a cooling air duct (23) serving to distribute the cooling air runs in a wall (27) of the thermally insulating housing (4), wherein the cooling air duct (23) is formed from a first elongated duct part (25) and from a second duct part (26) and produces a connection between the first duct part (25) and air passage apertures (37) in an interior container (8) surrounding the interior chamber (3), characterised in that a plurality of second duct parts (26) are distributed along the first duct part (25) and the first duct part (25) has predetermined break points in its wall, through which air passage apertures (34) break out.
  2. Refrigeration appliance according to claim 1, characterised in that the second duct parts (26) are embodied at least substantially identically.
  3. Refrigeration appliance (1) according to claim 1 or 2, characterised in that the first duct part (25) is formed by a tube (25) which has a passage aperture (34) for the cooling air at a connection point with one of the second duct parts (26) in its tube wall.
  4. Refrigeration appliance (1) according to one of claims 1, 2 or 3, characterised in that the tube (25) has a circular cross-section.
  5. Refrigeration appliance (1) according to one of the preceding claims, characterised in that the second duct parts (26) are moulded from rigid foam.
  6. Refrigeration appliance (1) according to one of the preceding claims, characterised in that the second duct parts (26) surround the first duct part (25) over the entire extent of the first duct part (25).
  7. Refrigeration appliance (1) according to one of the preceding claims, characterised in that a third duct part (28), which produces a connection between the first duct part (25) and the interior container (8), is attached to an open end (29) of the first duct part (25).
  8. Refrigeration appliance (1) according to claim 7, characterised in that the third duct part (28) has a cutout (33) for receiving the open end (29) of the first duct part (25), and that the third duct part (28) can be reshaped by removing a base (47) of the cutout (33) in a second duct part (26).
  9. Refrigeration appliance (1) according to claim 8, characterised in that the base (47) is delimited by predetermined break points.
  10. Refrigeration appliance (1) according to one of the preceding claims, characterised in that the interior container (8) has recesses (42) on the foam side which set the position of the second duct parts (26) in relation to the interior container (8).
  11. Refrigeration appliance (1) according to one of the preceding claims, characterised in that each of the second duct parts (26) supplies at least two air passage apertures (37) in the interior container (8), which are spaced apart from one another transversely with respect to the longitudinal direction of the first duct part (25).
  12. Refrigeration appliance (1) according to one of the preceding claims, characterised in that the air passage apertures (37) are oriented in two different directions in the interior container (8).
  13. Refrigeration appliance (1) according to one of the preceding claims, characterised in that each of the second duct parts (26) has air passage apertures (40) which are assigned to the air passage apertures (37) in the interior container (8) and are delimited by a wall (38) of the second duct part (26) resting flat against the interior container (8).
EP06725557.0A 2005-05-10 2006-04-05 Refrigeration device Not-in-force EP1848938B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005021606A DE102005021606A1 (en) 2005-05-10 2005-05-10 The refrigerator
PCT/EP2006/061321 WO2006120088A1 (en) 2005-05-10 2006-04-05 Refrigeration device

Publications (2)

Publication Number Publication Date
EP1848938A1 EP1848938A1 (en) 2007-10-31
EP1848938B1 true EP1848938B1 (en) 2019-02-27

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EP06725557.0A Not-in-force EP1848938B1 (en) 2005-05-10 2006-04-05 Refrigeration device

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EP (1) EP1848938B1 (en)
DE (1) DE102005021606A1 (en)
TR (1) TR201903971T4 (en)
WO (1) WO2006120088A1 (en)

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Publication number Priority date Publication date Assignee Title
BRPI0503396A (en) * 2005-08-16 2007-04-10 Multibras Eletrodomesticos Sa air duct mounting arrangement in refrigeration appliances
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DE202009006300U1 (en) * 2009-02-25 2010-07-29 Liebherr-Hausgeräte Ochsenhausen GmbH Fridge and / or freezer
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TR201903971T4 (en) 2019-04-22
EP1848938A1 (en) 2007-10-31
DE102005021606A1 (en) 2006-11-23
WO2006120088A1 (en) 2006-11-16

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