EP2596309B1 - Refrigerator, in particular a household refrigeration appliance - Google Patents

Refrigerator, in particular a household refrigeration appliance Download PDF

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Publication number
EP2596309B1
EP2596309B1 EP11730972.4A EP11730972A EP2596309B1 EP 2596309 B1 EP2596309 B1 EP 2596309B1 EP 11730972 A EP11730972 A EP 11730972A EP 2596309 B1 EP2596309 B1 EP 2596309B1
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EP
European Patent Office
Prior art keywords
channel
front frame
foam
pass
refrigerator according
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
EP11730972.4A
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German (de)
French (fr)
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EP2596309A2 (en
Inventor
Panagiotis Fotiadis
Alexander GÖRZ
Hans Ihle
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
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BSH Bosch und Siemens Hausgeraete GmbH
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Publication of EP2596309A2 publication Critical patent/EP2596309A2/en
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Publication of EP2596309B1 publication Critical patent/EP2596309B1/en
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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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate
    • 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
    • F25D23/061—Walls with conduit means

Definitions

  • the invention relates to a refrigeration device, in particular household refrigerating appliance, according to the preamble of claim 1 and a method for producing such a refrigerating appliance according to the preamble of claim 8.
  • a generic refrigeration device which has a surrounding a refrigerator and filled with réelleisolierschaum device body.
  • the device body has a front frame which moves the feed opening with a front plate.
  • the face plate of the front frame acts as a magnetic partner with a magnetic seal of a door.
  • a foam-free feedthrough channel is arranged, in which a heating pipe is laid.
  • the feedthrough channel in which the heating pipe is laid, is dimensioned substantially larger in cross section than a pipe cross section of the heating pipe. This ensures that, even taking into account component tolerances, the heating pipe is always disposed within the feedthrough channel and does not press with excessive force against the front plate of the front frame. This would lead to visually disadvantageous bulges of the front plate. Accordingly, the heating pipe is arranged at a distance from the end plate, which results in a disadvantageous only a weak heat transfer to the face plate.
  • a refrigerator according to the preamble of claim 1 is made EP1079187 known.
  • the object of the invention is to provide a refrigeration device, in particular household refrigeration appliance, and a method for producing such a refrigeration appliance, in which the energy efficiency of the refrigeration appliance is increased by simple means.
  • the heating pipe for heating the front plate of the front frame is fluidically connected in the refrigerant circuit of the refrigerator and thus flows through the refrigerant.
  • the heating pipe is connected upstream of the condenser of the refrigerant circuit.
  • the heating pipe is connected downstream of the condenser.
  • the liquid refrigerant is further subcooled, so that the cooling capacity of the compressor and thus also the energy efficiency of the refrigeration device increases.
  • the heating pipes can be connected downstream of the condenser by the heat conduction according to the invention in a larger number of basic refrigeration units, which in turn can be reduced energy consumption.
  • the above-mentioned predetermined contact pressure is applied by means of an elastically resilient contact pressure element.
  • the contact pressure element can be made elastically yielding by way of a likewise predetermined spring travel and press the heating pipeline against the front plate or the front frame with the predetermined contact force.
  • the elastic spring travel held by the contact pressure element tolerance-compensating movements of the heating pipes during assembly of the refrigeration device are also made possible.
  • the pressing element is arranged within the foam-free feedthrough channel.
  • the foam-free feedthrough channel can be defined by a trough-shaped cross-section profile part, which is substantially covered on its open side by the end plate.
  • the trough-shaped profile part separates the foam-free feedthrough channel from the heat insulating foam.
  • the cross section of the channel-shaped profile part can be designed substantially larger than the pipe cross-section of the heating pipe.
  • the pressing member may be formed in different versions either uniform material / in one piece with the front plate and / or with the channel-shaped profile part.
  • the contact pressure element may be used as a projection directly into the channel-shaped profile part. Due to greater material thickness of the profile part, however, it is difficult to make this material projection sufficiently elastic yielding or deformable.
  • the pressing element may preferably be discontinued between the channel-shaped profile part and the heating pipe and press the heating pipe with the predetermined contact pressure against the face plate. The force exerted by the contact pressure is in this case dimensioned such that the front plate is not curved on the front side to the outside.
  • the pressing member may be formed as a sheet metal tongue directly on the front plate and press with the predetermined contact force against the heating pipe.
  • the trough-shaped profile part can act as an abutment on which the heating pipe is supported.
  • the heating pipe may be advantageous if in the longitudinal direction of the heating pipe a number of sheet metal tongues are provided in the front plate, which are spaced from each other. Depending on the permissible contact pressure, the distance between the individual sheet metal tongues can be varied. Alternatively, the pressing element along the longitudinal extent of the heating pipe can run continuously and designed by the material properties forth be that results in a suitable contact pressure in the assembled state of the refrigerator.
  • the face plate can form a sheet metal part together with a device outer wall, wherein the front plate, a plug-in receptacle may be formed in which the trough-shaped profile member for limiting the foam-free feedthrough channel can be inserted.
  • the trough-shaped profile part can in turn pass into an inner wall delimiting the cooling space.
  • FIG. 1 a section of a refrigeration device is shown, in which a roughly indicated front door unit 1 closes a front-side charging opening 3 of a cooling space 5.
  • the refrigeration device has a cooling body 5 defining device body, which consists of a plastic inner container and housing outer walls that define a cavity which is filled with a townisolierschaum 11.
  • a lateral device outer wall 7 of the refrigerator is shown, which is made of a steel sheet.
  • An inner wall 9 delimiting the cooling chamber 5 is part of the inner container, which is manufactured by deep drawing.
  • the Fig. 1 goes outside exposed device outer wall 7 at a bending edge 8 in a front-side end plate 12 of a front frame 13 via.
  • the face plate 12 is exposed in the direction of the appliance door 1 and acts as a magnetic partner with a magnetic door seal 15 of the appliance door 1 together.
  • the front plate 12 of the front frame 13 is extended to a abutting edge 16 with a counter-bent sheet metal leg 17 of a socket 19.
  • the plug-in receptacle 19 forms in cross-section in a device side direction x in the direction of the cooling chamber 5 open U-profile, which is formed by the spring leg 17, a receiving base 21 and an opposite spring leg 23.
  • the spring leg 23 is in the Fig. 1 shown in its undeformed state. Accordingly, the spring leg 23 is provided to the front of the device obliquely inward and widened at its free end of the sheet with an obliquely outward longitudinal web 25 again.
  • a corresponding male profile 27 is inserted in the plug-in receptacle 19 of the end plate 12.
  • the step-shaped plug-in profile 27 is according to the Fig. 1 a lateral end piece of an angled from the inner wall 9 Frontflansches 29, which moves the feed opening 3.
  • the front flange 29 is stepped on a, the abutting edge 16 opposite abutment edge 31 in depth direction y stepwise, resulting in the cross-sectionally channel-shaped male profile 27 results.
  • the area of the two abutting edges 16 and 29 as well as the connecting joint therebetween is covered by means of the door seal 15.
  • the channel-shaped plug-in profile 27 forms a feed-through channel 32, in which a pipe heating pipe 33 is laid.
  • the pipe heating line 33 is connected in the refrigerant circuit of the refrigerator and thus flows through coolant.
  • the pipe heating line 33 is connected in the high-pressure side of the refrigerant circuit, that is, depending on the heat demand, either upstream or downstream of the condenser.
  • the male profile 21 with sealing surfaces 35 is almost in contact with the spring leg 17 of the end plate 12. In this way, the limited by the channel-shaped plug profile 27 passage channel remains almost foam-free even after the foaming process.
  • the pressing member 39 is starting from its in the Fig. 1 dashed indicated undeformed state over a spring deflection f elastically deformable.
  • the pressing element 39 extends substantially along the entire length of the heating pipe 33 in the foam-free feedthrough channel 32.
  • the pressing element 39 is designed such that the heating pipe 33 with a predetermined contact force F against the spring leg 17 and thus presses against the face plate 12.
  • the pressing force F of the pressing member 39 is adjusted so that a bulge of the front plate 13 to the front side can be avoided.
  • refrigeration device For the production of in the Fig. 1 shown refrigeration device is first deep-drawn in a known deep-drawing process of the plastic inner container whose inner walls 9 limit the cooling chamber 5. At the same time, the male profile 27 of the side projecting from the feed opening 3 front flange 29 is formed. Separately from this deep-drawing process, the device outer wall 7 and the end plate 12 is molded with a molded-on receptacle 19 formed in a sheet metal forming process from a metal plate.
  • the heating pipe 33 is laid in the still open through-channel 32 of the channel-shaped plug-in profile 27, wherein the contact pressure element 39 between the Schurohr Arthur 33 and the support base 37 of the male profile 27 is interposed.
  • the plug-in profile 27 is inserted into the plug-in receptacle 19 of the front plate 12, whereby the abutting edges 16, 31 of the front flange 29 and the end plate 12 adjacent to each other with the interposition of the joint.
  • the heating pipe 33 is also displaced into the feed-through channel 32. This is done by building up the elastically yielding contact force F in the pressing element 39, with which the heating pipe 33 is pressed against the leg 17 of the end plate 12.
  • the pressing member 39 is compressed by the spring travel f
  • FIG. 2 the second embodiment of the invention is shown, the basic structure and operation of which corresponds to that of the first embodiment.
  • Fig. 2 In contrast to Fig. 1 will be in the Fig. 2 waived a separately held pressing member 39. Rather, according to the Fig. 2 the pressing member 39 one of the spring leg 17 of the receptacle 19 obliquely parked metal tongue. Overall, a plurality of such mutually spaced sheet metal tongues 39 may extend along the heating pipe 33. The distance between these sheet metal tongues 39 and the in Longitudinal sheet metal tongue length realized in this case is determined depending on the maximum possible contact pressure F, with the bulging of the end plate 12 is still avoided to the front side. According to the Fig. 2 the Rohrsammlung effet 33 is supported directly on the support portion 37 of the channel-shaped plug-in profile 27, which acts as an abutment here. Thus, in the Fig. 2 the pressing member 39 of the same material and in one piece in the face plate 12, that is in the leg 17, integrated.

Description

Die Erfindung betrifft ein Kältegerät, insbesondere Haushaltskältegerät, nach dem Oberbegriff des Patentanspruches 1 sowie ein Verfahren zur Herstellung eines solchen Kältegerätes nach dem Oberbegriff des Patentanspruches 8.The invention relates to a refrigeration device, in particular household refrigerating appliance, according to the preamble of claim 1 and a method for producing such a refrigerating appliance according to the preamble of claim 8.

Insbesondere bei Gefriergeräten ist es bekannt, den im Betrieb eigentlich kühlen Frontrahmen, der mit der Gerätetür zusammenwirkt, mit einer Heizrohrleitung zu erwärmen. Ansonsten würde nämlich die Gefahr bestehen, dass am Frontrahmen Wasser kondensiert, das auf den Boden abtropfen kann.In particular, in freezers, it is known to heat the actually cool in operation front frame, which interacts with the door, with a heating pipe. Otherwise, there would be the danger that condenses on the front frame water that can drip onto the floor.

Aus der DE 295 04 901 U1 ist ein gattungsgemäßes Kältegerät bekannt, das einen, einen Kühlraum umgebenden und mit Wärmeisolierschaum gefüllten Gerätekorpus aufweist. Der Gerätekorpus hat einen die Beschickungsöffnung umziehenden Frontrahmen mit einem Stirnblech. Das Stirnblech des Frontrahmens wirkt als ein magnetischer Partner mit einer Magnetdichtung einer Gerätetür zusammen. An der, der Gerätetür abgewandten Seite des Stirnbleches ist ein schaumfreier Durchführungskanal angeordnet, in dem eine Heizrohrleitung verlegt ist.From the DE 295 04 901 U1 a generic refrigeration device is known, which has a surrounding a refrigerator and filled with Wärmeisolierschaum device body. The device body has a front frame which moves the feed opening with a front plate. The face plate of the front frame acts as a magnetic partner with a magnetic seal of a door. On the side facing away from the appliance door of the end plate, a foam-free feedthrough channel is arranged, in which a heating pipe is laid.

Der Durchführungskanal, in dem die Heizrohrleitung verlegt ist, ist im Querschnitt wesentlich größer bemessen als ein Rohrquerschnitt der Heizrohrleitung. Dadurch ist gewährleistet, dass auch unter Berücksichtigung von Bauteiltoleranzen die Heizrohrleitung stets innerhalb des Durchführungskanals angeordnet ist und nicht mit übermäßig großer Kraft gegen das Stirnblech des Frontrahmens drückt. Dies würde nämlich zu optisch nachteiligen Auswölbungen des Stirnbleches führen. Entsprechend ist die Heizrohrleitung vom Stirnblech beabstandet angeordnet, wodurch sich nachteilig lediglich eine schwach ausgeprägte Wärmeübertragung auf das Stirnblech ergibt.The feedthrough channel, in which the heating pipe is laid, is dimensioned substantially larger in cross section than a pipe cross section of the heating pipe. This ensures that, even taking into account component tolerances, the heating pipe is always disposed within the feedthrough channel and does not press with excessive force against the front plate of the front frame. This would lead to visually disadvantageous bulges of the front plate. Accordingly, the heating pipe is arranged at a distance from the end plate, which results in a disadvantageous only a weak heat transfer to the face plate.

Ein Kältegerät gemäß dem Oberbegriff von Anspruch 1 ist aus EP1079187 bekannt.A refrigerator according to the preamble of claim 1 is made EP1079187 known.

Die Aufgabe der Erfindung besteht darin, ein Kältegerät, insbesondere Haushaltskältegerät, sowie ein Verfahren zur Herstellung eines solchen Kältegerätes bereitzustellen, bei der die Energieeffizienz des Kältegerätes mit einfachen Mitteln erhöht ist.The object of the invention is to provide a refrigeration device, in particular household refrigeration appliance, and a method for producing such a refrigeration appliance, in which the energy efficiency of the refrigeration appliance is increased by simple means.

Die Aufgabe ist durch die Merkmale des Patentanspruches 1 oder des Patentanspruches 8 gelöst. Bevorzugte Weiterbildungen der Erfindung sind in den Unteransprüchen offenbart.The object is solved by the features of claim 1 or claim 8. Preferred embodiments of the invention are disclosed in the subclaims.

Gemäß dem kennzeichnenden Teil des Patentanspruches 1 wird die durch den schaumfreien Durchführungskanal geführte Heizrohrleitung mit einer vorgegebenen Anpresskraft in wärmeleitende Anlage mit dem Blechschenkel des Stirnblechs des Frontrahmens gedrückt. Dadurch kann eine wesentlich energieeffizientere unmittelbare Wärmeleitung zwischen der Heizrohrleitung und dem Frontrahmen erfolgen.According to the characterizing part of claim 1, which is guided by the foam-free feedthrough duct heating pipe is pressed with a predetermined contact force in thermally conductive contact with the sheet metal leg of the front plate of the front frame. This allows a much more energy efficient direct heat conduction between the heating pipe and the front frame done.

Üblicherweise ist die Heizrohrleitung zur Erwärmung des Stirnbleches des Frontrahmens strömungstechnisch in den Kältemittelkreislauf des Kältegerätes geschaltet und somit kältemitteldurchströmt. Bei Geräten mit hohem Wärmebedarf am Frontrahmen wird die üblicherweise als Frontrahmenheizung ausgebildete Heizrohrleitung dem Verflüssiger des Kältemittelkreislaufes vorgeschaltet. Bei Kältegeräten mit geringerem Wärmebedarf wird dagegen die Heizrohrleitung dem Verflüssiger nachgeschaltet.Usually, the heating pipe for heating the front plate of the front frame is fluidically connected in the refrigerant circuit of the refrigerator and thus flows through the refrigerant. For devices with high heat demand on the front frame usually designed as a front frame heater heating pipe is connected upstream of the condenser of the refrigerant circuit. For refrigerators with lower heat demand, however, the heating pipe is connected downstream of the condenser.

Durch die erfindungsgemäß erfolgende direkte Wärmeleitung zwischen der Heizrohrleitung und dem Stirnblech des Frontrahmens wird das flüssige Kältemittel weiter unterkühlt, so dass die Kälteleistung des Verdichters und somit auch die Energieeffizienz des Kältegerätes steigt. Außerdem können durch die erfindungsgemäße Wärmeleitung bei einer größeren Anzahl von Kältegeräte-Grundausführungen die Heizrohrleitungen dem Verflüssiger nachgeschaltet werden, wodurch wiederum der Energieverbrauch reduziert werden kann.By virtue of the direct heat conduction between the heating pipe and the front plate of the front frame according to the invention, the liquid refrigerant is further subcooled, so that the cooling capacity of the compressor and thus also the energy efficiency of the refrigeration device increases. In addition, the heating pipes can be connected downstream of the condenser by the heat conduction according to the invention in a larger number of basic refrigeration units, which in turn can be reduced energy consumption.

Die oben genannte vorgegebene Anpresskraft wird mittels eines elastisch nachgiebigen Anpresselementes beaufschlagt. Das Anpresselement kann über einen ebenfalls vorgegebenen Federweg elastisch nachgiebig gestaltet sein und die Heizrohrleitung mit der vorgegebenen Anpresskraft gegen das Stirnblech bzw. den Frontrahmen drücken. Durch den vom Anpresselement vorgehaltenen elastischen Federweg sind außerdem toleranzbedingte Ausgleichsbewegungen der Heizrohrleitungen beim Zusammenbau des Kältegerätes ermöglicht.The above-mentioned predetermined contact pressure is applied by means of an elastically resilient contact pressure element. The contact pressure element can be made elastically yielding by way of a likewise predetermined spring travel and press the heating pipeline against the front plate or the front frame with the predetermined contact force. By virtue of the elastic spring travel held by the contact pressure element, tolerance-compensating movements of the heating pipes during assembly of the refrigeration device are also made possible.

Das Anpresselement ist innerhalb des schaumfreien Durchführungskanals angeordnet. Dabei kann der schaumfreie Durchführungskanal durch ein im Querschnitt rinnenförmiges Profilteil definiert sein, das an seiner offenen Seite vom Stirnblech im Wesentlichen überdeckt ist. Das rinnenförmige Profilteil trennt dabei den schaumfreien Durchführungskanal vom Wärmeisolierschaum. Um die oben genannten toleranzbedingten Ausgleichsbewegungen der Heizrohrleitung zu ermöglichen, kann der Querschnitt des rinnenförmigen Profilteils wesentlich größer gestaltet sein als der Rohrquerschnitt der Heizrohrleitung.The pressing element is arranged within the foam-free feedthrough channel. In this case, the foam-free feedthrough channel can be defined by a trough-shaped cross-section profile part, which is substantially covered on its open side by the end plate. The trough-shaped profile part separates the foam-free feedthrough channel from the heat insulating foam. In order to enable the above-mentioned tolerance compensating compensatory movements of the heating pipe, the cross section of the channel-shaped profile part can be designed substantially larger than the pipe cross-section of the heating pipe.

Das Anpresselement kann in unterschiedlichen Ausführungen entweder materialeinheitlich/einstückig jeweils mit dem Stirnblech und/oder mit dem rinnenförmigen Profilteil ausgebildet sein. So ist es denkbar, das Anpresselement als Vorsprung unmittelbar in das rinnenförmige Profilteil einzuarbeiten. Aufgrund größerer Materialstärke des Profilteils ist es jedoch schwierig, diesen Materialvorsprung ausreichend elastisch nachgiebig oder verformbar zu gestalten. Vor diesem Hintergrund ist es von Vorteil, wenn das Anpresselement als ein separates Bauteil in den schaumfreien Durchführungskanal eingesetzt werden kann. Das Anpresselement kann dabei bevorzugt zwischen dem rinnenförmigen Profilteil und der Heizrohrleitung abgesetzt sein und die Heizrohrleitung mit der vorgegebenen Anpresskraft gegen das Stirnblech drücken. Die vom Anpresselement ausgeübte Anpresskraft ist dabei derart bemessen, dass das Stirnblech nicht frontseitig nach außen gewölbt wird.The pressing member may be formed in different versions either uniform material / in one piece with the front plate and / or with the channel-shaped profile part. Thus, it is conceivable to incorporate the contact pressure element as a projection directly into the channel-shaped profile part. Due to greater material thickness of the profile part, however, it is difficult to make this material projection sufficiently elastic yielding or deformable. Against this background, it is advantageous if the contact pressure element can be used as a separate component in the foam-free feedthrough channel. The pressing element may preferably be discontinued between the channel-shaped profile part and the heating pipe and press the heating pipe with the predetermined contact pressure against the face plate. The force exerted by the contact pressure is in this case dimensioned such that the front plate is not curved on the front side to the outside.

Alternativ dazu kann das Anpresselement als eine Blechzunge unmittelbar am Stirnblech ausgebildet sein und mit der vorgegebenen Anpresskraft gegen die Heizrohrleitung drücken. Gegebenenfalls kann dabei das rinnenförmige Profilteil als ein Gegenlager wirken, auf dem sich die Heizrohrleitung abstützt.Alternatively, the pressing member may be formed as a sheet metal tongue directly on the front plate and press with the predetermined contact force against the heating pipe. Optionally, the trough-shaped profile part can act as an abutment on which the heating pipe is supported.

Zur Einstellung einer geeigneten Anpresskraft kann es von Vorteil sein, wenn in Längsrichtung der Heizrohrleitung eine Anzahl von Blechzungen im Stirnblech vorgesehen sind, die voneinander beabstandet sind. In Abhängigkeit von der zulässigen Anpresskraft kann der Abstand zwischen den einzelnen Blechzungen variiert werden. Alternativ dazu kann das Anpresselement entlang der Längserstreckung der Heizrohrleitung durchgängig verlaufen und von den Materialeigenschaften her so gestaltet sein, dass sich ein geeigneter Anpressdruck im Zusammenbauzustand des Kältegerätes ergibt.To set a suitable contact pressure, it may be advantageous if in the longitudinal direction of the heating pipe a number of sheet metal tongues are provided in the front plate, which are spaced from each other. Depending on the permissible contact pressure, the distance between the individual sheet metal tongues can be varied. Alternatively, the pressing element along the longitudinal extent of the heating pipe can run continuously and designed by the material properties forth be that results in a suitable contact pressure in the assembled state of the refrigerator.

Das Stirnblech kann zusammen mit einer Geräteaußenwand ein Blechformteil bilden, wobei am Stirnblech eine Steckaufnahme angeformt sein kann, in der das rinnenförmige Profilteil zur Eingrenzung des schaumfreien Durchführungskanals einsteckbar ist. Das rinnenförmige Profilteil kann wiederum in eine, den Kühlraum begrenzende Innenwand, übergehen.The face plate can form a sheet metal part together with a device outer wall, wherein the front plate, a plug-in receptacle may be formed in which the trough-shaped profile member for limiting the foam-free feedthrough channel can be inserted. The trough-shaped profile part can in turn pass into an inner wall delimiting the cooling space.

Nachfolgend sind zwei Ausführungsbeispiele der Erfindung anhand der beigefügten Figuren beschrieben.In the following, two embodiments of the invention will be described with reference to the attached figures.

Es zeigen:

Fig. 1
in einer stark vergrößerten Seitenschnittansicht einen Ausschnitt aus einem freistehenden Standkältegerät gemäß dem ersten Ausführungsbeispiel; und
Fig. 2
in einer Ansicht entsprechend der Fig. 1 das zweite Ausführungsbeispiel.
Show it:
Fig. 1
in a greatly enlarged side sectional view of a section of a freestanding stationary refrigerator according to the first embodiment; and
Fig. 2
in a view corresponding to Fig. 1 the second embodiment.

In der Fig. 1 ist ein Ausschnitt aus einem Kältegerät gezeigt, bei dem eine grob angedeutete frontseitige Gerätetür 1 eine frontseitige Beschickungsöffnung 3 eines Kühlraums 5 verschließt.In the Fig. 1 a section of a refrigeration device is shown, in which a roughly indicated front door unit 1 closes a front-side charging opening 3 of a cooling space 5.

Das Kältegerät weist einen den Kühlraum 5 definierenden Gerätekorpus auf, der aus einem Kunststoff-Innenbehälter und Gehäuseaußenwänden besteht, die einen Hohlraum begrenzen, der mit einem Wärmeisolierschaum 11 gefüllt ist. In der Fig. 1 ist nur eine seitliche Geräteaußenwand 7 des Kältegerätes gezeigt, die aus einem Stahlblech gefertigt ist. Eine den Kühlraum 5 begrenzende Innenwand 9 ist Teil des Innenbehälters, der im Tiefziehverfahren hergestellt ist. Gemäß der Fig. 1 geht die nach außen freiliegende Geräteaußenwand 7 an einer Biegekante 8 in ein frontseitiges Stirnblech 12 eines Frontrahmens 13 über. Das Stirnblech 12 ist in Richtung auf die Gerätetür 1 freigelegt und wirkt als ein magnetischer Partner mit einer magnetischen Türdichtung 15 der Gerätetür 1 zusammen.The refrigeration device has a cooling body 5 defining device body, which consists of a plastic inner container and housing outer walls that define a cavity which is filled with a Wärmeisolierschaum 11. In the Fig. 1 only a lateral device outer wall 7 of the refrigerator is shown, which is made of a steel sheet. An inner wall 9 delimiting the cooling chamber 5 is part of the inner container, which is manufactured by deep drawing. According to the Fig. 1 goes outside exposed device outer wall 7 at a bending edge 8 in a front-side end plate 12 of a front frame 13 via. The face plate 12 is exposed in the direction of the appliance door 1 and acts as a magnetic partner with a magnetic door seal 15 of the appliance door 1 together.

Wie aus der Fig. 1 weiter hervorgeht, ist das Stirnblech 12 des Frontrahmens 13 an einer Stoßkante 16 mit einem gegenläufig umgebogenen Blechschenkel 17 einer Steckaufnahme 19 verlängert. Die Steckaufnahme 19 bildet im Querschnitt ein in Geräteseitenrichtung x in Richtung auf den Kühlraum 5 offenes U-Profil, das von dem Federschenkel 17, einem Aufnahmeboden 21 sowie einem gegenüberliegenden Federschenkel 23 gebildet ist. Der Federschenkel 23 ist in der Fig. 1 in seinem unverformten Zustand gezeigt. Demzufolge ist der Federschenkel 23 zur Gerätefrontseite hin schräg nach innen gestellt und an seinem freien Blechende mit einem schräg nach außen gestellten Längssteg 25 wieder ausgeweitet. In die Steckaufnahme 19 des Stirnbleches 12 ist ein korrespondierendes Steckprofil 27 eingesetzt. Das stufenförmig ausgebildete Steckprofil 27 ist gemäß der Fig. 1 ein seitliches Endstück eines von der Innenwand 9 abgewinkelten Frontflansches 29, der die Beschickungsöffnung 3 umzieht. Der Frontflansch 29 ist dabei an einer, der Stoßkante 16 gegenüberliegenden Stoßkante 31 in Bautiefenrichtung y stufenförmig zurückgesetzt, wodurch sich das im Querschnitt rinnenförmige Steckprofil 27 ergibt. Der Bereich der beiden Stoßkanten 16 und 29 sowie die dazwischen liegende Verbindungsfuge wird mittels der Türdichtung 15 überdeckt.Like from the Fig. 1 further shows, the front plate 12 of the front frame 13 is extended to a abutting edge 16 with a counter-bent sheet metal leg 17 of a socket 19. The plug-in receptacle 19 forms in cross-section in a device side direction x in the direction of the cooling chamber 5 open U-profile, which is formed by the spring leg 17, a receiving base 21 and an opposite spring leg 23. The spring leg 23 is in the Fig. 1 shown in its undeformed state. Accordingly, the spring leg 23 is provided to the front of the device obliquely inward and widened at its free end of the sheet with an obliquely outward longitudinal web 25 again. In the plug-in receptacle 19 of the end plate 12, a corresponding male profile 27 is inserted. The step-shaped plug-in profile 27 is according to the Fig. 1 a lateral end piece of an angled from the inner wall 9 Frontflansches 29, which moves the feed opening 3. The front flange 29 is stepped on a, the abutting edge 16 opposite abutment edge 31 in depth direction y stepwise, resulting in the cross-sectionally channel-shaped male profile 27 results. The area of the two abutting edges 16 and 29 as well as the connecting joint therebetween is covered by means of the door seal 15.

Das rinnenförmige Steckprofil 27 bildet einen Durchführungskanal 32, in dem eine Rohrheizleitung 33 verlegt ist. Die Rohrheizleitung 33 ist in den Kältemittelkreislauf des Kältegerätes geschaltet und somit Kühlmittel durchströmt. Dabei ist die Rohrheizleitung 33 in die Hochdruckseite des Kältemittelkreislaufes geschaltet, das heißt in Abhängigkeit des Wärmebedarfes entweder dem Verflüssiger vor- oder nachgeschaltet. Wie aus der Fig. 1 weiter hervorgeht, ist das Steckprofil 21 mit Dichtflächen 35 nahezu in Anlage mit dem Federschenkel 17 des Stirnbleches 12. Auf diese Weise verbleibt der vom rinnenförmigen Steckprofil 27 begrenzte Durchführungskanal auch nach dem Schäumungsvorgang nahezu schaumfrei.The channel-shaped plug-in profile 27 forms a feed-through channel 32, in which a pipe heating pipe 33 is laid. The pipe heating line 33 is connected in the refrigerant circuit of the refrigerator and thus flows through coolant. In this case, the pipe heating line 33 is connected in the high-pressure side of the refrigerant circuit, that is, depending on the heat demand, either upstream or downstream of the condenser. Like from the Fig. 1 Next, the male profile 21 with sealing surfaces 35 is almost in contact with the spring leg 17 of the end plate 12. In this way, the limited by the channel-shaped plug profile 27 passage channel remains almost foam-free even after the foaming process.

Zwischen der Rohrheizleitung 33 und einem Stützabschnitt 37 des Steckprofils 27 ist gemäß der Fig. 1 ein elastisch nachgiebig ausgelegtes Anpresselement 39 abgestützt. Das Anpresselement 39 ist dabei ausgehend von seinem in der Fig. 1 gestrichelt angedeuteten unverformten Zustand über einen Federweg f elastisch verformbar. Zudem erstreckt sich das Anpresselement 39 im Wesentlichen entlang der gesamten Länge des der Heizrohrleitung 33 im schaumfreien Durchführungskanal 32. Das Anpresselement 39 ist derart ausgelegt, dass die Heizrohrleitung 33 mit einer vorgegebenen Anpresskraft F gegen den Federschenkel 17 und damit gegen das Stirnblech 12 drückt. Die Anpresskraft F des Anpresselements 39 ist so eingestellt, dass eine Auswölbung des Stirnbleches 13 zur Frontseite hin vermieden werden kann.Between the Rohrheizleitung 33 and a support portion 37 of the male profile 27 is according to the Fig. 1 an elastically yielding designed pressing member 39 supported. The pressing member 39 is starting from its in the Fig. 1 dashed indicated undeformed state over a spring deflection f elastically deformable. In addition, the pressing element 39 extends substantially along the entire length of the heating pipe 33 in the foam-free feedthrough channel 32. The pressing element 39 is designed such that the heating pipe 33 with a predetermined contact force F against the spring leg 17 and thus presses against the face plate 12. The pressing force F of the pressing member 39 is adjusted so that a bulge of the front plate 13 to the front side can be avoided.

Zur Herstellung des in der Fig. 1 gezeigten Kältegerätes wird zunächst in einem an sich bekannten Tiefziehvorgang der Kunststoff-Innenbehälter tiefgezogen, dessen Innenwände 9 den Kühlraum 5 begrenzen. Gleichzeitig wird auch das Steckprofil 27 des seitlich von der Beschickungsöffnung 3 abragenden Frontflansches 29 geformt. Separat von diesem Tiefziehvorgang wird in einem Blechumformprozess aus einer Metallplatine die Geräteaußenwand 7 sowie das Stirnblech 12 mit daran angeformter Steckaufnahme 19 geformt.For the production of in the Fig. 1 shown refrigeration device is first deep-drawn in a known deep-drawing process of the plastic inner container whose inner walls 9 limit the cooling chamber 5. At the same time, the male profile 27 of the side projecting from the feed opening 3 front flange 29 is formed. Separately from this deep-drawing process, the device outer wall 7 and the end plate 12 is molded with a molded-on receptacle 19 formed in a sheet metal forming process from a metal plate.

Darauffolgend wird in dem noch offenen Durchführungskanal 32 des rinnenförmigen Steckprofils 27 die Heizrohrleitung 33 verlegt, wobei das Anpresselement 39 zwischen der Heizrohrleitung 33 und dem Stützboden 37 des Steckprofils 27 zwischengesetzt wird.Subsequently, the heating pipe 33 is laid in the still open through-channel 32 of the channel-shaped plug-in profile 27, wherein the contact pressure element 39 between the Heizrohrleitung 33 and the support base 37 of the male profile 27 is interposed.

Im darauf folgenden Zusammenbauschritt wird das Steckprofil 27 in die Steckaufnahme 19 des Stirnbleches 12 eingeschoben, wodurch die Stoßkanten 16, 31 des Frontflansches 29 und des Stirnbleches 12 unter Zwischenlage der Verbindungsfuge aneinandergrenzen. Beim Zusammenfügen wird außerdem die Heizrohrleitung 33 in den Durchführungskanal 32 hinein verlagert. Dies erfolgt unter Aufbau der elastisch nachgiebigen Anpresskraft F im Anpresselement 39, mit der die Heizrohrleitung 33 gegen den Schenkel 17 des Stirnbleches 12 gedrückt wird. Außerdem wird das Anpresselement 39 um den Federweg f zusammengepresstIn the subsequent assembly step, the plug-in profile 27 is inserted into the plug-in receptacle 19 of the front plate 12, whereby the abutting edges 16, 31 of the front flange 29 and the end plate 12 adjacent to each other with the interposition of the joint. When joining, the heating pipe 33 is also displaced into the feed-through channel 32. This is done by building up the elastically yielding contact force F in the pressing element 39, with which the heating pipe 33 is pressed against the leg 17 of the end plate 12. In addition, the pressing member 39 is compressed by the spring travel f

In der Fig. 2 ist das zweite Ausführungsbeispiel der Erfindung gezeigt, dessen grundsätzlicher Aufbau und Wirkungsweise dem des ersten Ausführungsbeispiels entspricht.In the Fig. 2 the second embodiment of the invention is shown, the basic structure and operation of which corresponds to that of the first embodiment.

Im Unterschied zur Fig. 1 wird in der Fig. 2 auf ein separat vorgehaltenes Anpresselement 39 verzichtet. Vielmehr ist gemäß der Fig. 2 das Anpresselement 39 eine von dem Federschenkel 17 der Steckaufnahme 19 schräg abgestellte Blechzunge. Insgesamt können sich eine Vielzahl solcher zueinander beabstandeter Blechzungen 39 entlang der Heizrohrleitung 33 erstrecken. Der Abstand zwischen diesen Blechzungen 39 bzw. die in Längsrichtung realisierte Blechzungen-Länge wird hierbei in Abhängigkeit von der maximal möglichen Anpresskraft F festgelegt, mit der ein Auswölben des Stirnbleches 12 zur Frontseite hin noch vermieden ist. Gemäß der Fig. 2 stützt sich die Rohrheizleitung 33 unmittelbar am Stützabschnitt 37 des rinnenförmigen Steckprofils 27 ab, der hier als ein Gegenlager wirkt. Somit ist in der Fig. 2 das Anpresselement 39 materialeinheitlich und einstückig im Stirnblech 12, das heißt in dessen Schenkel 17, integriert.In contrast to Fig. 1 will be in the Fig. 2 waived a separately held pressing member 39. Rather, according to the Fig. 2 the pressing member 39 one of the spring leg 17 of the receptacle 19 obliquely parked metal tongue. Overall, a plurality of such mutually spaced sheet metal tongues 39 may extend along the heating pipe 33. The distance between these sheet metal tongues 39 and the in Longitudinal sheet metal tongue length realized in this case is determined depending on the maximum possible contact pressure F, with the bulging of the end plate 12 is still avoided to the front side. According to the Fig. 2 the Rohrheizleitung 33 is supported directly on the support portion 37 of the channel-shaped plug-in profile 27, which acts as an abutment here. Thus, in the Fig. 2 the pressing member 39 of the same material and in one piece in the face plate 12, that is in the leg 17, integrated.

BEZUGSZEICHENLISTELIST OF REFERENCE NUMBERS

11
Gerätetürdoor
33
Beschickungsöffnungloading port
55
Kühlraumrefrigerator
77
GeräteaußenwandDevices outer wall
88th
Biegekantebending edge
99
Innenwandinner wall
1111
Isolierschauminsulating foam
1212
Stirnblechface plate
1313
Frontrahmenfront frame
1515
Türdichtungdoor seal
1616
Stoßkanteimpact edge
1616
Stoßkanteimpact edge
1717
Schenkelleg
1919
Steckaufnahmeplug-in receptacle
2121
Aufnahmebodenloading floor
2323
Schenkelleg
2525
Längssteglongitudinal web
2727
rinnenförmiges Steckprofilchannel-shaped plug-in profile
2929
Frontflanschfront flange
3131
Stoßkanteimpact edge
3232
schaumfreier Durchführungskanalfoam-free duct
3333
Heizrohrleitungheat pipe
3535
Dichtflächensealing surfaces
3737
Stützabschnittsupport section
3939
Anpresselementpresser
ff
Federwegtravel
xx
GeräteseitenrichtungDevice side direction
yy
BautiefenrichtungBautiefenrichtung

Claims (8)

  1. Refrigerator, in particular household refrigerator, with an appliance body which delimits a refrigeration compartment (5) and is filled with a heat-insulating foam (11), said body having a front frame (13) surrounding the loading opening (3), which front frame (13) interacts with an appliance door (1) and on which a foam-free pass-through channel (32) from the side facing away from the appliance door (1) is provided, through which channel (32) a heating pipeline (33) is guided, wherein the foam-free pass-through channel (32) is defined between the front frame (13) and a profile part (27) with a trough-shaped cross-section, which profile part (27) separates the heat-insulating foam (11) from the pass-through channel (32), and the front frame (13) has an end plate (12) which interacts with a magnetic seal (15) of the appliance door (1) as a magnetic partner, said end plate (12) being extended to an abutting edge (16) with a plate leg (17) of a plug receptacle (19) configured on the front frame (13), said plate leg (17) being bent in a reverse direction in which plug receptacle (19) the trough-shaped profile part (27) can be inserted, said profile part (27) being configured on an inner wall (9) delimiting the refrigeration compartment (5), characterised in that at least one elastically yielding contact element (39) is provided in the pass-through channel (32), said contact element (39) pressing the heating pipeline (33) guided through the foam-free pass-through channel (32) with a predetermined contact force (F) into a heat-conducting arrangement with the plate leg (17) of the end plate (12) of the front frame (13).
  2. Refrigerator according to claim 1, characterised in that the contact element (39) is arranged within the foam-free pass-through channel (32).
  3. Refrigerator according to claim 1 or 2, characterised in that the contact element (39) is embodied as a single material and/or as a single piece with the front frame (13) and/or with the trough-shaped profile part (27).
  4. Refrigerator according to claim 1 or 2, characterised in that the contact element (39) is supported in the foam-free pass-through channel (32) as a separate component.
  5. Refrigerator according to claim 1, characterised in that the contact element (39) is embodied as a plate tongue on the end plate (12), which presses against the heating pipeline (33) with the predetermined contact force (F).
  6. Refrigerator according to one of the preceding claims, characterised in that the contact element (39) essentially extends continuously along the entire longitudinal extent of the foam-free pass-through channel (32).
  7. Refrigerator according to one of the preceding claims, characterised in that a series of contact elements (39) are provided, which are spaced apart from one another along the longitudinal extent of the foam-free pass-through channel (32).
  8. Method for manufacturing a refrigerator according to one of the preceding claims, in which a pass-through channel (32) for the installation of a heating pipeline (33) is provided on a side of a front frame (13) facing away from the appliance door (1).which front frame (13) surrounds the loading opening (3), characterised in that the heating pipeline (33) installed in the pass-through channel (32) is pressed with a predetermined contact force (F) into a heat-conducting arrangement with the front frame (13).
EP11730972.4A 2010-07-23 2011-07-12 Refrigerator, in particular a household refrigeration appliance Not-in-force EP2596309B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010038368 DE102010038368A1 (en) 2010-07-23 2010-07-23 Refrigerating appliance, in particular household refrigerating appliance
PCT/EP2011/061791 WO2012010455A2 (en) 2010-07-23 2011-07-12 Refrigerator, in particular a household refrigeration appliance

Publications (2)

Publication Number Publication Date
EP2596309A2 EP2596309A2 (en) 2013-05-29
EP2596309B1 true EP2596309B1 (en) 2014-06-18

Family

ID=44628317

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11730972.4A Not-in-force EP2596309B1 (en) 2010-07-23 2011-07-12 Refrigerator, in particular a household refrigeration appliance

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EP (1) EP2596309B1 (en)
DE (1) DE102010038368A1 (en)
WO (1) WO2012010455A2 (en)

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Publication number Priority date Publication date Assignee Title
KR20150120178A (en) * 2014-04-17 2015-10-27 삼성전자주식회사 Refrigerator and a inner cabinet manufacturing method of a refrigerator
DE102014225196A1 (en) 2014-12-09 2016-06-09 BSH Hausgeräte GmbH Household refrigerators device
CN106322897A (en) * 2015-06-30 2017-01-11 青岛海尔智能技术研发有限公司 Refrigerating device
KR102599885B1 (en) * 2015-10-15 2023-11-08 삼성전자주식회사 Refrigerator
CN109813035A (en) * 2018-12-29 2019-05-28 青岛海尔股份有限公司 Foam partition and the refrigerator with it
DE102020212260A1 (en) * 2020-09-29 2022-03-31 BSH Hausgeräte GmbH Household refrigeration appliance and method for assembling a household refrigeration appliance

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US4150518A (en) * 1978-02-21 1979-04-24 Truesdell Curtis A Mullion mounting
US4474017A (en) * 1982-09-07 1984-10-02 General Electric Company Method of assembling an anti-sweat heater in a refrigerator cabinet
US4881315A (en) * 1989-01-18 1989-11-21 General Electric Company Method of assembling an anti-sweat heater in a refrigerator cabinet
US5255531A (en) * 1993-01-05 1993-10-26 Whirlpool Corporation Refrigerator mullion assembly with hot gas defrost tube
DE29504901U1 (en) 1995-03-23 1995-05-18 Bosch Siemens Hausgeraete Refrigeration device with at least two cold compartments to be closed by separate doors
KR100554287B1 (en) * 1999-08-26 2006-02-24 삼성전자주식회사 Center partition cover device of side by side type refrigerator
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US6464312B1 (en) * 2001-05-01 2002-10-15 Maytag Corporation Refrigerator door breaker assembly

Also Published As

Publication number Publication date
WO2012010455A2 (en) 2012-01-26
EP2596309A2 (en) 2013-05-29
WO2012010455A3 (en) 2012-04-12
DE102010038368A1 (en) 2012-01-26

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