EP2596309A2 - Refrigerator, in particular a household refrigeration appliance - Google Patents

Refrigerator, in particular a household refrigeration appliance

Info

Publication number
EP2596309A2
EP2596309A2 EP11730972.4A EP11730972A EP2596309A2 EP 2596309 A2 EP2596309 A2 EP 2596309A2 EP 11730972 A EP11730972 A EP 11730972A EP 2596309 A2 EP2596309 A2 EP 2596309A2
Authority
EP
European Patent Office
Prior art keywords
channel
foam
front frame
refrigerating appliance
heating pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11730972.4A
Other languages
German (de)
French (fr)
Other versions
EP2596309B1 (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
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2596309A2 publication Critical patent/EP2596309A2/en
Application granted granted Critical
Publication of EP2596309B1 publication Critical patent/EP2596309B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • 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

  • Refrigerating appliance in particular household refrigerating appliance
  • the invention relates to a refrigeration device, in particular household refrigeration appliance, according to the
  • Front frame which interacts with the appliance door to heat with a heating pipe. Otherwise, there would be the danger that condenses on the front frame water that can drip onto the floor.
  • 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 located 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.
  • the object of the invention is a refrigeration device, in particular domestic refrigeration appliance, and a method for producing such a refrigeration appliance
  • 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 pressing member may be designed elastically yielding over a likewise predetermined travel and the
  • the contact pressure element can be arranged within the foam-free feedthrough channel.
  • the foam-free feedthrough channel by a in
  • Cross-section channel-shaped profile part to be defined, 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 that
  • the contact pressure element can be designed in different embodiments either as a unitary material / integrally with the front plate and / or with the channel-shaped profile part.
  • the contact pressure element can be designed in different embodiments either as a unitary material / integrally with the front plate and / or with the channel-shaped profile part.
  • the contact pressure element 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
  • Pressing 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.
  • Pressing force exerted pressing element is dimensioned such that the front plate is not curved frontally outward.
  • 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.
  • Heating pipe run consistently and designed by the material properties ago 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 channel-shaped profile part to limit 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 is a greatly enlarged side sectional view of a section of a freestanding stationary refrigerator according to the first embodiment
  • FIG. 2 in a view corresponding to FIG. 1, the second embodiment.
  • Fig. 1 a section of a refrigeration device is shown, in which a coarse
  • a front-side feed opening 3 of a refrigerator 5 closes.
  • the refrigeration device has a cooling chamber 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 1 1.
  • 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 exterior device wall 7 exposed to the outside merges at a bending edge 8 into a front-side end plate 12 of a front frame 13.
  • 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 connected to an abutting edge 16 with a sheet metal limb 17 bent in opposite directions
  • Plug-in receptacle 19 extended.
  • 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 of the spring leg 17, a receiving base 21 and an opposite
  • Spring leg 23 is formed.
  • the spring leg 23 is shown in Fig. 1 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 shown in FIG. 1, a lateral end portion 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. 1, the plug-in profile 21 with sealing surfaces 35 is almost in contact with the spring leg 17 of the end plate 12. In this way, the passage channel delimited by the channel-shaped plug-in profile 27 remains virtually foam-free even after the foaming process.
  • the pressing member 39 is starting from its in Fig. 1 indicated by dashed lines undeformed state over a spring deflection f elastically deformable.
  • the pressing member 39 extends substantially along the entire length of the heating pipe 33 in the foam-free feedthrough channel 32.
  • the pressing member 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.
  • the plastic inner container is first deep-drawn in a known deep-drawing process, the inner walls 9 delimit the cooling chamber 5.
  • the male profile 27 of the side projecting from the feed opening 3 front flange 29 is formed. Separately from this deep-drawing process is in a Blechumform perspectives from a metal plate the
  • 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 in Fig. 2, the second embodiment of the invention is shown, the
  • a separately held pressing element 39 is dispensed with in FIG. 2. Rather, as shown in FIG. 2, the pressing member 39 is one of the

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)

Abstract

The invention relates to a refrigerator, in particular a household refrigeration appliance, having an appliance body defining a cooling chamber (5), filled with a thermal insulation foam (11), and comprising a front frame (13) enclosing a loading opening (3), which interacts with an appliance door (1), wherein a passage channel (32), in particular a foam-free passage channel, is provided on the side of said frame that faces away from the appliance door (1), and a heating pipeline (33) is fed through said foam-free passage channel. According to the invention, the heating pipeline (33) that is fed through the foam-free passage channel (32) is pressed into thermally conductive contact with the front frame (13) at a predefined pressing force (F).

Description

Kältegerät, insbesondere Haushaltskältegerät  Refrigerating appliance, in particular household refrigerating appliance
Die Erfindung betrifft ein Kältegerät, insbesondere Haushaltskältegerät, nach dem The invention relates to a refrigeration device, in particular household refrigeration appliance, according to the
Oberbegriff des Patentanspruches 1 sowie ein Verfahren zur Herstellung eines solchen Kältegerätes nach dem Oberbegriff des Patentanspruches 12. The preamble of claim 1 and a method for producing such a refrigerator according to the preamble of claim 12.
Insbesondere bei Gefriergeräten ist es bekannt, den im Betrieb eigentlich kühlen Especially in freezers, it is known that actually cool in operation
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. Front frame, which interacts with the appliance door to heat 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 IM 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. 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 From DE 295 04 901 IM 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. 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
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. Heating pipe is always located 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.
Die Aufgabe der Erfindung besteht darin, ein Kältegerät, insbesondere Haushalts- kältegerät, sowie ein Verfahren zur Herstellung eines solchen Kältegerätes The object of the invention is a refrigeration device, in particular domestic refrigeration appliance, and a method for producing such a refrigeration appliance
bereitzustellen, bei der die Energieeffizienz des Kältegerätes mit einfachen Mitteln erhöht ist. Die Aufgabe ist durch die Merkmale des Patentanspruches 1 oder des Patentanspruches 12 gelöst. Bevorzugte Weiterbildungen der Erfindung sind in den Unteransprüchen offenbart. to provide, in which the energy efficiency of the refrigerator is increased by simple means. The object is solved by the features of claim 1 or claim 12. 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 Frontrahmen, insbesondere dessen Stirnblech, gedrückt. Dadurch kann eine wesentlich energieeffizientere unmittelbare Wärmeleitung zwischen der Heizrohrleitung und dem Frontrahmen erfolgen. 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. According to the characterizing part of claim 1, which is guided by the foam-free passage channel heating pipe with a predetermined contact force in thermally conductive contact with the front frame, in particular its front plate pressed. This allows a much more energy efficient direct heat conduction between the heating pipe and the front frame done. 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. Bevorzugt wird die oben genannte vorgegebene Anpresskraft mittels eines elastisch nachgiebigen Anpresselementes beaufschlagt. Das Anpresselement kann über einen ebenfalls vorgegebenen Federweg elastisch nachgiebig gestaltet sein und die 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. Preferably, the above-mentioned predetermined contact pressure is applied by means of an elastically resilient contact pressure element. The pressing member may be designed elastically yielding over a likewise predetermined travel and the
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. Bevorzugt kann das Anpresselement innerhalb des schaumfreien Durchführungskanals angeordnet sein. Dabei kann der schaumfreie Durchführungskanal durch ein im Press the heating pipe against the front plate or the front frame with the specified contact pressure. 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. Preferably, the contact pressure element can be arranged within the foam-free feedthrough channel. In this case, the foam-free feedthrough channel by a in
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 Cross-section channel-shaped profile part to be defined, 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-compensated compensatory movements of the heating pipe, the cross section of the channel-shaped profile part can be designed substantially larger than that
Rohrquerschnitt der Heizrohrleitung. Pipe cross-section of the heating pipe.
Das Anpresselement kann in unterschiedlichen Ausführungen entweder materialein- heitlich/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 The contact pressure element can be designed in different embodiments either as a unitary material / integrally 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
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 Pressing 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 ones from
Anpresselement ausgeübte Anpresskraft ist dabei derart bemessen, dass das Stirnblech nicht frontseitig nach außen gewölbt wird. Pressing force exerted pressing element is dimensioned such that the front plate is not curved frontally outward.
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 To set a suitable contact pressure, it may be advantageous if in
Längsrichtung der Heizrohrleitung eine Anzahl von Blechzungen im Stirnblech Longitudinal direction of the heating pipe a number of sheet metal tongues in the face plate
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 are provided 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
Heizrohrleitung durchgängig verlaufen und von den Materialeigenschaften her so gestaltet sein, dass sich ein geeigneter Anpressdruck im Zusammenbauzustand des Kältegerätes ergibt. Heating pipe run consistently and designed by the material properties ago 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 channel-shaped profile part to limit 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: Show it:
Fig. 1 in einer stark vergrößerten Seitenschnittansicht einen Ausschnitt aus einem freistehenden Standkältegerät gemäß dem ersten Ausführungsbeispiel; und 1 is a greatly enlarged side sectional view of a section of a freestanding stationary refrigerator according to the first embodiment; and
Fig. 2 in einer Ansicht entsprechend der Fig. 1 das zweite Ausführungsbeispiel. 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 In Fig. 1 a section of a refrigeration device is shown, in which a coarse
angedeutete frontseitige Gerätetür 1 eine frontseitige Beschickungsöffnung 3 eines Kühlraums 5 verschließt. indicated front door 1, a front-side feed opening 3 of a refrigerator 5 closes.
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 1 1 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. 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 The refrigeration device has a cooling chamber 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 1 1. In 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 FIG. 1, the exterior device wall 7 exposed to the outside merges at a bending edge 8 into a front-side end plate 12 of a front frame 13. 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. As is further apparent from FIG. 1, the front plate 12 of the front frame 13 is connected to an abutting edge 16 with a sheet metal limb 17 bent in opposite directions
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 Plug-in receptacle 19 extended. 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 of the spring leg 17, a receiving base 21 and an opposite
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. Spring leg 23 is formed. The spring leg 23 is shown in Fig. 1 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 shown in FIG. 1, a lateral end portion 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. We 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 rinnen- förmigen Steckprofil 27 begrenzte Durchführungskanal auch nach dem Schäumungs- Vorgang 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. 1, the plug-in profile 21 with sealing surfaces 35 is almost in contact with the spring leg 17 of the end plate 12. In this way, the passage channel delimited by the channel-shaped plug-in profile 27 remains virtually 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 tubular heating pipe 33 and a support portion 37 of the plug-in profile 27, an elastically yielding contact pressure element 39 is supported according to FIG. The pressing member 39 is starting from its in Fig. 1 indicated by dashed lines undeformed state over a spring deflection f elastically deformable. In addition, the pressing member 39 extends substantially along the entire length of the heating pipe 33 in the foam-free feedthrough channel 32. The pressing member 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 To produce the refrigerator shown in FIG. 1, the plastic inner container is first deep-drawn in a known deep-drawing process, the inner walls 9 delimit 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 is in a Blechumformprozess from a metal plate the
Geräteaußenwand 7 sowie das Stirnblech 12 mit daran angeformter Steckaufnahme 19 geformt. Device outer wall 7 and the front plate 12 molded with molded-on plug-in receptacle 19.
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 zusammengepresst In der Fig. 2 ist das zweite Ausführungsbeispiel der Erfindung gezeigt, dessen In 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 Fig. 2, the second embodiment of the invention is shown, the
grundsätzlicher Aufbau und Wirkungsweise dem des ersten Ausführungsbeispiels entspricht. basic structure and operation of the first embodiment corresponds.
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 In contrast to FIG. 1, a separately held pressing element 39 is dispensed with in FIG. 2. Rather, as shown in FIG. 2, the pressing member 39 is one of the
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. Spring leg 17 of the socket 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. 2, the tubular heating pipe 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 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.
BEZUGSZEICHENLISTE LIST OF REFERENCE NUMBERS
I Gerätetür I appliance door
3 Beschickungsöffnung  3 feed opening
5 Kühlraum 5 refrigerator
7 Geräteaußenwand  7 external device wall
8 Biegekante  8 bending edge
9 Innenwand  9 inner wall
I I Isolierschaum  I I insulating foam
12 Stirnblech 12 face plate
13 Frontrahmen  13 front frames
15 Türdichtung  15 door seal
16 Stoßkante  16 abutting edge
16 Stoßkante 16 abutting edge
17 Schenkel 17 thighs
19 Steckaufnahme  19 plug-in receptacle
21 Aufnahmeboden  21 receiving bottom
23 Schenkel  23 thighs
25 Längssteg  25 longitudinal bar
27 rinnenförmiges Steckprofil 27 channel-shaped plug-in profile
29 Frontflansch  29 front flange
31 Stoßkante  31 abutting edge
32 schaumfreier Durchführungskanal  32 foam-free feedthrough channel
33 Heizrohrleitung  33 heating pipe
35 Dichtflächen 35 sealing surfaces
37 Stützabschnitt  37 support section
39 Anpresselement  39 pressing element
f Federweg f travel
x Geräteseitenrichtung x Device side direction
y Bautiefenrichtung y Bautiefenrichtung

Claims

PATENTANSPRÜCHE
Kältegerät, insbesondere Haushaltskältegerät, mit einem, einen Kühlraum (5) begrenzenden und mit einem Wärmeisolierschaum (11) gefüllten Gerätekorpus, der einen die Beschickungsöffnung (3) umziehenden Frontrahmen (13) aufweist, der mit einer Gerätetür (1) zusammenwirkt und an dessen von der Gerätetür (1) abgewandten Seite ein insbesondere schaumfreier Durchführungskanal (32) vorgesehen ist, durch den eine Heizrohrleitung (33) geführt ist, dadurch gekennzeichnet, dass die durch den schaumfreien Durchführungskanal (32) geführte Heizrohrleitung (33) mit einer vorgegebenen Anpresskraft (F) in wärmeleitende Anlage mit dem Frontrahmen (13) gedrückt ist. Refrigerating appliance, in particular domestic refrigerating appliance, with a, a refrigerator (5) delimiting and with a Wärmeisolierschaum (11) filled device body having a feed opening (3) moving front frame (13) which cooperates with a door (1) and at the from the appliance door (1) facing away from a particular foam-free feedthrough channel (32) is guided through which a heating pipe (33) is guided, characterized in that the through the foam-free feed channel (32) guided heating pipe (33) with a predetermined contact force (F ) is pressed in thermally conductive contact with the front frame (13).
Kältegerät nach Anspruch 1 , dadurch gekennzeichnet, dass zumindest ein insbesondere elastisch nachgiebiges Anpresselement (39) vorgesehen ist, das die Heizrohrleitung (33) mit der Anpresskraft (F) in Anlage mit dem Frontrahmen (13) drückt. Refrigerating appliance according to claim 1, characterized in that at least one in particular elastically resilient pressure element (39) is provided, which presses the heating pipe (33) with the contact pressure (F) in abutment with the front frame (13).
Kältegerät nach Anspruch 2, dadurch gekennzeichnet, dass das Anpresselement (39) innerhalb des schaumfreien Durchführungskanals (32) angeordnet ist. Refrigerating appliance according to claim 2, characterized in that the pressing element (39) is arranged within the foam-free feedthrough channel (32).
Kältegerät nach einem der Ansprüche 1 , 2 oder 3, dadurch gekennzeichnet, dass der schaumfreie Durchführungskanal (32) zwischen dem Frontrahmen (13) und einem im Querschnitt rinnenförmigen Profilteil (27) definiert ist, das den Wärmeisolierschaum (11) vom DurchführungsDurchführungskanal (32) trennt. Refrigerating appliance according to one of claims 1, 2 or 3, characterized in that the foam-free feedthrough channel (32) is defined between the front frame (13) and a cross-sectionally channel-shaped profile part (27), which separates the heat insulating foam (11) from the feedthrough feedthrough channel (32). separates.
Kältegerät nach einem der Ansprüche 2, 3 oder 4, dadurch gekennzeichnet, dass das Anpresselement (39) materialeinheitlich und/oder einstückig mit dem Frontrahmen (13) und/oder mit dem rinnenförmigen Profilteil (27) ausgebildet ist. Refrigerating appliance according to one of claims 2, 3 or 4, characterized in that the pressing element (39) of the same material and / or in one piece with the front frame (13) and / or with the channel-shaped profile part (27) is formed.
Kältegerät nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Anpresselement (39) als separates Bauteil im schaumfreien Durchführungskanal (32) abgestützt ist. Kältegerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Frontrahmen (13) ein Stirnblech (12) aufweist, das als magnetischer Partner mit einer Magnetdichtung (15) der Gerätetür (1) Refrigerating appliance according to one of claims 1 to 4, characterized in that the contact pressure element (39) is supported as a separate component in the foam-free feedthrough channel (32). Refrigerating appliance according to one of the preceding claims, characterized in that the front frame (13) has a front plate (12) which acts as a magnetic partner with a magnetic seal (15) of the appliance door (1).
zusammenwirkt. interacts.
Kältegerät nach Anspruch 7, dadurch gekennzeichnet, dass das Anpresselement (39) als eine Blechzunge am Stirnblech (12) ausgebildet ist, die mit der Refrigerating appliance according to claim 7, characterized in that the pressing element (39) is designed as a sheet metal tongue on the end plate (12), which with the
vorgegebenen Anpresskraft (F) gegen die Heizrohrleitung (33) drückt. given contact pressure (F) against the heating pipe (33) presses.
Kältegerät nach einem der Ansprüche 5 bis 8, dadurch gekennzeichnet, dass der Frontrahmen (13) mit einer Steckaufnahme (19) ausgebildet ist, in der das rinnenförmige Profilteil (27) einsteckbar ist, wobei das rinnenförmige Profilteil (27) insbesondere an einer den Kühlraum (5) begrenzenden Innenwand (9) ausgebildet ist. Refrigerating appliance according to one of claims 5 to 8, characterized in that the front frame (13) is formed with a plug-in receptacle (19) in which the channel-shaped profile part (27) can be inserted, wherein the channel-shaped profile part (27) in particular at one of the cooling space (5) is formed bounding inner wall (9).
Kältegerät nach einem der Ansprüche 2 bis 9, dadurch gekennzeichnet, dass sich das Anpresselement (39) durchgängig im Wesentlichen entlang der gesamten Längserstreckung des schaumfreien Durchführungskanals (32) erstreckt. Refrigerating appliance according to one of claims 2 to 9, characterized in that extending the pressing element (39) substantially along the entire longitudinal extent of the foam-free feedthrough channel (32).
Kältegerät nach einem der Ansprüche 2 bis 9, dadurch gekennzeichnet, dass eine Reihe von Anpresselementen (39) vorgesehen sind, die entlang der Refrigerating appliance according to one of claims 2 to 9, characterized in that a number of pressing elements (39) are provided, which along the
Längserstreckung des schaumfreien Durchführungskanals (32) voneinander beabstandet sind. Longitudinal extent of the foam-free feedthrough channel (32) are spaced from each other.
Verfahren zur Herstellung eines Kältegeräts, insbesondere nach einem der vorhergehenden Ansprüche, bei dem an einer von der Gerätetür (1) abgewandten Seite eines Frontrahmens (13), der die Beschickungsöffnung (3) umzieht, ein Durchführungskanal (32) zum Verlegen einer Heizrohrleitung (33) vorgesehen wird, dadurch gekennzeichnet, dass die im Durchführungskanal (32) verlegte Heizrohrleitung (33) mit einer vorgegebenen Anpresskraft (F) in wärmeleitende Anlage mit dem Frontrahmen (13) gedrückt wird. Method for producing a refrigeration device, in particular according to one of the preceding claims, in which a feedthrough channel (32) for laying a heating pipe (33) is arranged on a side of a front frame (13) which faces away from the appliance door (1) and which moves the feed opening (3) ) is provided, characterized in that in the passage channel (32) laid heating pipe (33) with a predetermined contact force (F) in heat-conducting contact with the front frame (13) is pressed.
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

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

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DE (1) DE102010038368A1 (en)
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DE102010038368A1 (en) 2012-01-26
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WO2012010455A2 (en) 2012-01-26

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