EP0233149A1 - Refrigerated bar with absorption refrigeration unit - Google Patents

Refrigerated bar with absorption refrigeration unit Download PDF

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Publication number
EP0233149A1
EP0233149A1 EP87810067A EP87810067A EP0233149A1 EP 0233149 A1 EP0233149 A1 EP 0233149A1 EP 87810067 A EP87810067 A EP 87810067A EP 87810067 A EP87810067 A EP 87810067A EP 0233149 A1 EP0233149 A1 EP 0233149A1
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Prior art keywords
compartment
cooled
wall
coolable
heat
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EP87810067A
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German (de)
French (fr)
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EP0233149B1 (en
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Nicolas Dr. Eber
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    • 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
    • F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
    • 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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/061—Walls with conduit means

Definitions

  • the invention relates to cooling bars with an absorption cooling unit.
  • Cooling bars are mainly used in hotel guest rooms, offices and private living rooms for the cooling of drinks and for ice cube preparation. Most of the time, in addition to the chilled one, they also have an uncooled compartment that serves to store glasses, non-chilled wine and spirits, snacks, etc.
  • absorption cooling units without mechanically moving parts are generally used for cooling bars as cooling units.
  • the most common type of cooler has arranged the uncooled compartment over the cooled compartment, has a lockable door, is paneled with wooden panels on the outside and is usually on castors.
  • the previously known absorption cooling units with pressure-compensating auxiliary gas are designed in such a way that they hinder the cooling bar, which is in itself more expedient, from being hung on a wall at about eye level.
  • the cooling units must be installed directly behind the insulation of the cooled compartment and take up 8 to 10 cm of room depth there.
  • the cooling element of the cooling unit, the evaporator protrudes into the cooled compartment and takes up a minimum of space and depth.
  • the minimum overall depth of the previously known coolable versions is approximately 38 cm, which makes them practically and aesthetically unsuitable for wall mounting.
  • cooling bars can be built with significantly reduced room depths of 25 to 30 cm and yet sufficient usable depths. Such cooling bars can be hung in a practically and aesthetically satisfactory manner on a wall at about eye level. This means that it is usually easy for them to find space and their content can be easily and conveniently surveyed and operated.
  • Fig. 1 shows schematically, in horizontal section, without a door, a cooler 1.
  • the cooled compartment 2 is provided with thermal insulation 4, preferably made of rigid polyurethane foam.
  • the inner wall 5 of the cooled compartment 2 can, as has also been customary hitherto, consist of plastic or, at least in part, of good heat-conducting material, preferably aluminum sheet. If the inner wall 5 of the cooled compartment 2 is made of plastic, then it is completely or at least partially covered with good heat-conducting material on the insulation side.
  • the evaporator tube 11 of the absorption cooling unit 10 is in direct contact with the inner wall 5 of the cooled compartment 2 and inside the heat insulation 4. The remaining, not cold parts of the absorption cooling unit 10 are located behind the uncooled compartment 3. Because the structure and function of absorption cooling units is generally known are a detailed description is unnecessary at this point and not necessary for an understanding of the invention.
  • the cooling is accomplished very effectively by the direct contact between the evaporator 11 and the good heat-conducting inner wall 5.
  • the heat coming in through the thermal insulation which is known to take up at least three-quarters of the cooling capacity, does not get into the cooled space at all, but is intercepted beforehand when it hits the cooled, good heat-conducting inner wall 5.
  • the evaporator 11 is not arranged in the insulation 4 as shown in FIG. 1, but protrudes into the cooled compartment and may carry heat transfer fins or other surface enlarging parts there if necessary.
  • Fig. 2 shows a vertical section through the rear wall of the cooled compartment, a possibility of fastening the evaporator on the heat-conducting rear wall of the cooled compartment.
  • the plastic inner wall 21 is covered with aluminum sheet 22, to which an aluminum profile 23 for receiving the evaporator tube 24 is fastened in a suitable manner.
  • the heat insulation 25 is with provided with an opening 27, which makes it possible for the evaporator tube 24 to be installed from behind or removed from the rear during the assembly or disassembly of the cooling unit. Since the opening angle of the slightly resilient aluminum profile 23 is less than 180 degrees, it holds the evaporator tube 24 in place even without further fastening measures.
  • the opening of the heat insulation 27 is closed with a closure part 26 made of insulating material.
  • Fig. 3 shows another way of attaching the evaporator.
  • the evaporator tube 32 is inserted laterally into the cavity formed by an aluminum profile 33 within the thermal insulation 34.
  • the aluminum profile is fastened in a suitable manner to the well thermally conductive rear wall 31 of the cooled compartment. In this case, it is recommended, as usual, to perfect the contact between the aluminum parts 31, 33 and the evaporator tube 32 by means of a layer of heat transfer paste.
  • Fig. 4 shows schematically a secondary cooling system for the improved transmission of cooling between the evaporator and the inner wall of the cooled compartment.
  • the rear wall 41 of the cooled compartment is adjacent to the evaporator tube 42 as well as a tube coil 43 which was previously evacuated and then filled with liquid and then hermetically sealed.
  • the upper part 44 of the coil 43 which is in contact with the evaporator tube 42, acts as a condenser.
  • the steam liquefied therein passes through the downpipe section 45 into the lower part of the pipe coil 43 and then rises again from there to the condenser part 44 as a result of the formation of steam due to the incidence of heat as a steam or steam-liquid mixture.
  • a secondary cooling system need not be limited to the rear wall of the cooled compartment.
  • FIG. 5 shows in vertical section an arrangement which, despite the hidden evaporator 54 arranged in the insulation 55, enables the production of ice cubes.
  • an aluminum profile 56 is attached in a suitable manner, e.g. fixed by gluing, riveting, screwing or spot welding, into which a second aluminum profile 57 fits from above.
  • the vertical section 58 of the profile 57 is pressed by the profile 56 against the evaporator tube 54 against the cooled wall 51 and is thereby effectively cooled.
  • the upper, horizontal section of the profile 57 serves as a support for ice cube trays. With this arrangement, the profile 57 can be repeatedly inserted or removed by the user as needed.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Refrigerator Housings (AREA)

Abstract

Eine Kühlbar (1) mit stark verminderter Bautiefe kann an einer Wand, etwa in Augenhöhe, befestigt werden, wodurch sich auch der Überblick und die Bedienung des Inhaltes wesentlich verbessern.A cooler (1) with a greatly reduced overall depth can be attached to a wall, for example at eye level, which also significantly improves the overview and the operation of the contents.

Die Verminderung der Bautiefe wird in erster Linie durch die Anord­nung der nicht kalten Kühlaggregatteile (10) hinter dem seitlich vom gekühlten Fach (2) liegenden ungekühlten Fach (3) erreicht. Desweiteren durch die Anordnung des Verdampfers (11) innerhalb der Isolation (4) des gekühlten Faches (2).

Figure imgaf001
The reduction in overall depth is achieved primarily by arranging the non-cold cooling unit parts (10) behind the uncooled compartment (3) lying to the side of the cooled compartment (2). Furthermore, by arranging the evaporator (11) within the insulation (4) of the cooled compartment (2).
Figure imgaf001

Description

Die Erfindung betrifft Kühlbars mit Absorptionskühlaggregat.The invention relates to cooling bars with an absorption cooling unit.

Kühlbars werden vornehmlich in Hotelgastzimmern, Büros und privaten Wohnräumen für die Kühlung von Getränken und für Eiswurfelbereitung verwendet. Meistens haben sie nebst dem gekühlten auch ein ungekühl­tes Fach, der Aufbewahrung von Gläsern, nicht gekühltem Wein und Spirituosen, Snacks usw. dient.Cooling bars are mainly used in hotel guest rooms, offices and private living rooms for the cooling of drinks and for ice cube preparation. Most of the time, in addition to the chilled one, they also have an uncooled compartment that serves to store glasses, non-chilled wine and spirits, snacks, etc.

Da bei solchen Anwendungen die Geräusch- und Vibrationsfreiheit eine wesentliche Voraussetzung ist, werden für Kühlbars als Kälte­sätze allgemein Absorptionskühlaggregate ohne mechanisch bewegte Teile verwendet.Since freedom from noise and vibration is an essential prerequisite in such applications, absorption cooling units without mechanically moving parts are generally used for cooling bars as cooling units.

Die meistverbreitete Kühlbar-Bauart hat das ungekühlte Fach über dem gekühlten Fach angeordnet, hat eine verschliessbare Türe, ist aussen mit Holzplatten verschalt und steht meistens auf Rollen.The most common type of cooler has arranged the uncooled compartment over the cooled compartment, has a lockable door, is paneled with wooden panels on the outside and is usually on castors.

Die Nachteile dieser Bauart liegen darin, dass einerseits Boden­fläche beansprucht wird, welche meistens knapp und für diesen Zweck häufig gar nicht verfügbar ist, andererseits dass der Überblick und die Bedienung, d.h. Entnahme und Auffüllen, des unten, in Boden­nähe befindlichen Barinhaltes beschwerlich ist.The disadvantages of this type of construction are that, on the one hand, floor space is used, which is mostly scarce and often not available for this purpose, on the other hand, that the overview and operation, i.e. Removal and refilling of the bar contents located below, near the ground, is difficult.

Das Entstehen der bisher bekanntgewordenen und allgemein verwende­ten, für die Praxis aber zu wenig zweckmässigen Kühlbar-Bauarten ist in letzter Konsequenz als Folge der verfügbaren Kältesätze zu betrachten.The emergence of the previously known and generally used cooling bar designs, which are not practical enough, is ultimately to be regarded as a consequence of the available cooling units.

Insbesondere die bisher bekannten Absorptionskühlaggregate mit druckausgleichendem Hilfsgas sind derart beschaffen, dass sie der an und für sich zweckmässigeren Aufhängung der Kühlbar an einer Wand in etwa Augenhöhe hinderlich sind.In particular, the previously known absorption cooling units with pressure-compensating auxiliary gas are designed in such a way that they hinder the cooling bar, which is in itself more expedient, from being hung on a wall at about eye level.

Erstens müssen nämlich die Kühlaggregate direkt hinter der Isolation des gekühlten Fachs montiert sein und beanspruchen dort 8 bis 10 cm an Raumtiefe. Zweitens ragt das kühlende Organ des Kühlaggre­gates, der Verdampfer, in das gekühlte Fach hinein und beansprucht dort ein Mindestmass von Raum und Raumtiefe. Als Folge dieser Fak­toren beträgt die minimale Gesamttiefe der bisher bekannten Kühlbar-­Ausführungen etwa 38 cm, was sie für eine Wandaufhängung praktisch und ästhetisch ungeeignet macht.Firstly, the cooling units must be installed directly behind the insulation of the cooled compartment and take up 8 to 10 cm of room depth there. Second, the cooling element of the cooling unit, the evaporator, protrudes into the cooled compartment and takes up a minimum of space and depth. As a result of these factors, the minimum overall depth of the previously known coolable versions is approximately 38 cm, which makes them practically and aesthetically unsuitable for wall mounting.

Die vorliegende Erfindung behebt diese Nachteile durch eine neuar­tige Gestaltung und Anordnung sowohl des Absorptionskühlaggregates wie auch der eigentlichen Kühlbar, durch die in der Kennzeichnung der Ansprüche 1 bis 4 angegebenen Merkmale:

  • 1. Das ungekühlte Fach ist neben dem gekühlten Fach angeordnet und die im Betrieb nicht kalten Teile des Kühlaggregates sind hinter dem ungekühlten Fach angeordnet.
  • 2. Die Innenwand des wärmeisolierten und gekühlten Faches besteht, ganz oder teilweise, aus gut wärmeleitendem Material, vorzugs­weise Aluminiumblech, oder ist isolationsseitig ganz oder teil­weise mit gut wärmeleitendem Material bedeckt und wird durch Kontakt mit dem Verdampfer, welcher ausserhalb des gekühlten Raumes in der Wärmeisolation liegt, gekühlt.
The present invention overcomes these disadvantages by means of a novel design and arrangement of both the absorption cooling unit and the actual cooling bar, by means of the features specified in the characterization of claims 1 to 4:
  • 1. The uncooled compartment is arranged next to the refrigerated compartment and the parts of the cooling unit that are not cold during operation are arranged behind the uncooled compartment.
  • 2. The inner wall of the heat-insulated and cooled compartment consists, in whole or in part, of good heat-conducting material, preferably aluminum sheet, or is completely or partially covered on the insulation side with good heat-conducting material and is in contact with the evaporator, which is outside the cooled space in the heat insulation lies, cooled.

Mit Hilfe der vorliegenden Erfindung können Kühlbars mit wesentlich reduzierten Raumtiefen von 25 bis 30 cm, und dennoch genügenden Nutztiefen, gebaut werden. Solche Kühlbars können auf praktisch und ästhetisch befriedigende Weise an einer Wand in etwa Augenhöhe aufgehängt werden. Somit lässt sich für sie meistens leicht Platz finden und ihr Inhalt wird leicht und bequem überblickbar und be­dienbar.With the help of the present invention, cooling bars can be built with significantly reduced room depths of 25 to 30 cm and yet sufficient usable depths. Such cooling bars can be hung in a practically and aesthetically satisfactory manner on a wall at about eye level. This means that it is usually easy for them to find space and their content can be easily and conveniently surveyed and operated.

Die Erfindung wird anschliessend beispielsweise anhand von Figuren näher erläutert.The invention is subsequently explained in more detail, for example, using figures.

Die Figuren zeigen:

  • Fig. 1 eine schematische Anordnung der Fächer und des Kühlaggre­gates:
  • Fig. 2 und Fig. 3 je einen Vertikalschnitt durch die Rückwand des gekühlten Faches;
  • Fig. 4 die schematische Anordnung eines Sekundär-Kühlsystems:
  • Fig. 5 eine Anordnung für Eiswürfelbereitung.
The figures show:
  • 1 shows a schematic arrangement of the compartments and the cooling unit:
  • 2 and 3 each show a vertical section through the rear wall of the cooled compartment;
  • 4 shows the schematic arrangement of a secondary cooling system:
  • Fig. 5 shows an arrangement for ice cube preparation.

Fig. 1 zeigt schematisch, im Horizontalschnitt, ohne Türe, eine Kühlbar 1. Das gekühlte Fach 2 ist mit einer Wärmeisolation 4, vor­zugsweise aus Polyurethan-Hartschaum, versehen. Die Innenwand 5 des gekühlten Faches 2 kann, wie auch bisher üblich, aus Kunststoff oder, zumindest teilweise, aus gut wärmeleitendem Material, vorzugs­weise Aluminiumblech, bestehen. Falls die Innenwand 5 des gekühlten Faches 2 aus Kunststoff besteht, dann wird sie isolationsseitig gänzlich oder zumindest teilweise mit gut wärmeleitendem Material bedeckt.Fig. 1 shows schematically, in horizontal section, without a door, a cooler 1. The cooled compartment 2 is provided with thermal insulation 4, preferably made of rigid polyurethane foam. The inner wall 5 of the cooled compartment 2 can, as has also been customary hitherto, consist of plastic or, at least in part, of good heat-conducting material, preferably aluminum sheet. If the inner wall 5 of the cooled compartment 2 is made of plastic, then it is completely or at least partially covered with good heat-conducting material on the insulation side.

Das Verdampferrohr 11 des Absorptionskühlaggregates 10 liegt in direktem Kontakt mit der Innenwand 5 des gekühlten Faches 2 und innerhalb der Wärmeisolation 4. Die übrigen, nicht kalten Teile des Absorptionskühlaggregates 10, befinden sich hinter dem ungekühl­ten Fach 3. Da Aufbau und Funktion von Absorptionskühlaggregaten allgemein bekannt sind, ist eine nähere Beschreibung an dieser Stel­le überflüssig und für das Verständnis der Erfindung auch nicht erforderlich. Das im vorliegenden Beispiel gerade und im wesent­lichen horizontal liegende Verdampferrohr 11 ragt in die Wärmeiso­ lation 4 an der Rückwand des gekühlten Faches 2 hinein.The evaporator tube 11 of the absorption cooling unit 10 is in direct contact with the inner wall 5 of the cooled compartment 2 and inside the heat insulation 4. The remaining, not cold parts of the absorption cooling unit 10 are located behind the uncooled compartment 3. Because the structure and function of absorption cooling units is generally known are a detailed description is unnecessary at this point and not necessary for an understanding of the invention. The evaporator tube 11, which is straight and essentially horizontal in the present example, projects into the heat iso lation 4 on the rear wall of the cooled compartment 2.

Bei dieser Anordnung beanspruchen im Bezug auf das gekühlte Fach 2 weder das Kühlaggregat 10 noch der Verdampfer 11 Raumtiefe oder Nutzraum.With this arrangement, neither the cooling unit 10 nor the evaporator 11 require depth or usable space in relation to the cooled compartment 2.

Durch den direkten Kontakt zwischen dem Verdampfer 11 und der gut wärmeleitenden Innenwand 5 wird die Kühlung sehr wirksam bewerkstel­ligt. Bei dieser Art der Kühlung gelangt die durch die Wärmeisola­tion einfallende Wärme, welche bekanntlich mindestens Dreiviertel der Kühlleistung beansprucht, gar nicht in den gekühlten Raum, son­dern wird schon vorher beim Auftreffen auf die gekühlte, gut wärme­leitende Innenwand 5 abgefangen.The cooling is accomplished very effectively by the direct contact between the evaporator 11 and the good heat-conducting inner wall 5. With this type of cooling, the heat coming in through the thermal insulation, which is known to take up at least three-quarters of the cooling capacity, does not get into the cooled space at all, but is intercepted beforehand when it hits the cooled, good heat-conducting inner wall 5.

Wesentliche Vorteile gegenüber bisher bekannten Kühlbar-Bauarten lassen sich aber auch schon dann erzielen, ohne dass dadurch der Rahmen der Erfindung verlassen wird, wenn der Verdampfer 11 nicht wie in Fig. 1 gezeigt in der Isolation 4 angeordnet ist, sondern in das gekühlte Fach hineinragt und dort unter Umständen, falls erforderlich, Wärmeübertragungsrippen oder andere oberflächenver­grössernde Teile trägt.However, significant advantages over previously known types of coolers can also be achieved without thereby departing from the scope of the invention if the evaporator 11 is not arranged in the insulation 4 as shown in FIG. 1, but protrudes into the cooled compartment and may carry heat transfer fins or other surface enlarging parts there if necessary.

Zwischen dem Verdampfer 11 und dem übrigen Kühlaggregat 10 befindet sich, in der in Fig. 1 gezeigten Ausführung innerhalb des gleichen geraden Rohres der Gaswärmeaustauscher 12, welcher grösstenteils ebenfalls innerhalb der Isolation 4 untergebracht ist.Between the evaporator 11 and the rest of the cooling unit 10, in the embodiment shown in FIG. 1, there is the gas heat exchanger 12 within the same straight tube, which for the most part is also housed within the insulation 4.

Fig. 2 zeigt im Vertikalschnitt durch die Rückwand des gekühlten Faches eine Befestigungsmöglichkeit des Verdampfers an der wärme­leitenden Rückwand des gekühlten Faches.Fig. 2 shows a vertical section through the rear wall of the cooled compartment, a possibility of fastening the evaporator on the heat-conducting rear wall of the cooled compartment.

Die Kunststoffinnenwand 21 ist mit Aluminiumblech 22 bedeckt, an dem ein Aluminiumprofil 23 zur Aufnahme des Verdampferrohres 24 in geeigneter Weise befestigt ist. Die Wärmeisolation 25 ist mit einer Öffnung 27 versehen, welche es ermöglicht, dass das Verdam­pferrohr 24 bei der Montage oder Demontage des Kühlaggregates von hinten eingebaut oder nach hinten ausgebaut werden kann. Da der Öffnungswinkel des leicht federnden Aluminiumprofils 23 kleiner als 180 Grad ist, hält es das Verdampferrohr 24 auch ohne weitere Befestigungsmassnahmen fest. Die Öffnung der Wärmeisolation 27 wird mit einem Verschlussteil 26 aus Isoliermaterial verschlossen.The plastic inner wall 21 is covered with aluminum sheet 22, to which an aluminum profile 23 for receiving the evaporator tube 24 is fastened in a suitable manner. The heat insulation 25 is with provided with an opening 27, which makes it possible for the evaporator tube 24 to be installed from behind or removed from the rear during the assembly or disassembly of the cooling unit. Since the opening angle of the slightly resilient aluminum profile 23 is less than 180 degrees, it holds the evaporator tube 24 in place even without further fastening measures. The opening of the heat insulation 27 is closed with a closure part 26 made of insulating material.

Fig. 3 zeigt eine weitere Befestigungsmöglichkeit des Verdampfers. Hier wird das Verdampferrohr 32 seitlich in den von einem Aluminium­profil 33 gebildeten Hohlraum innerhalb der Wärmeisolation 34 einge­führt. Das Aluminiumprofil ist auf geeignete Weise an der gut wärme­leitenden Rückwand 31 des gekühlten Faches befestigt. In diesem Fall empfiehlt es sich, wie üblich, den Kontakt zwischen den Alu­miniumteilen 31, 33 und dem Verdampferrohr 32 durch eine Schicht von Wärmeübertragungspaste zu vervollkommnen.Fig. 3 shows another way of attaching the evaporator. Here, the evaporator tube 32 is inserted laterally into the cavity formed by an aluminum profile 33 within the thermal insulation 34. The aluminum profile is fastened in a suitable manner to the well thermally conductive rear wall 31 of the cooled compartment. In this case, it is recommended, as usual, to perfect the contact between the aluminum parts 31, 33 and the evaporator tube 32 by means of a layer of heat transfer paste.

Fig. 4 zeigt schematisch ein Sekundärkühlsystem für die verbesserte Übertragung der Kühlung zwischen dem Verdampfer und der Innenwand des gekühlten Faches.Fig. 4 shows schematically a secondary cooling system for the improved transmission of cooling between the evaporator and the inner wall of the cooled compartment.

An die Rückwand 41 des gekühlten Faches liegt, isolationsseitig, nebst dem Verdampferrohr 42 auch eine vorher evakuierte und an­schliessend mit Flüssigkeit gefüllte und danach hermetisch ver­schlossene Rohrschlange 43 an. Der obere Teil 44 der Rohrschlange 43, welcher mit dem Verdampferrohr 42 in Kontakt steht, wirkt als Kondenser. Der darin verflüssigte Dampf gelangt durch den Fallrohr­abschnitt 45 in den unteren Teil der Rohrschlange 43 und steigt dann von dort infolge Dampfbildung durch den Wärmeeinfall als Dampf oder Dampf-Flüssigkeitsgemisch erneut zum Kondenserteil 44 hinauf. Ein solches Sekundär-Kühlsystem braucht aber selbstverständlich nicht auf die Rückwand des gekühlten Faches beschränkt zu sein.On the insulation wall, the rear wall 41 of the cooled compartment is adjacent to the evaporator tube 42 as well as a tube coil 43 which was previously evacuated and then filled with liquid and then hermetically sealed. The upper part 44 of the coil 43, which is in contact with the evaporator tube 42, acts as a condenser. The steam liquefied therein passes through the downpipe section 45 into the lower part of the pipe coil 43 and then rises again from there to the condenser part 44 as a result of the formation of steam due to the incidence of heat as a steam or steam-liquid mixture. Of course, such a secondary cooling system need not be limited to the rear wall of the cooled compartment.

Fig. 5 zeigt im Vertikalschnitt eine Anordnung, welche trotz des versteckt, in der Isolation 55 angeordneten Verdampfers 54 die Her­stellung von Eiswürfeln ermöglicht.5 shows in vertical section an arrangement which, despite the hidden evaporator 54 arranged in the insulation 55, enables the production of ice cubes.

An der aus gut wärmeleitendem Material bestehenden Rückwand 51 des gekühlten Faches ist ein Aluminiumprofil 56 in geeigneter Weise, z.B. durch Kleben, Nieten, Schrauben oder Punktschweissen befestigt, in welches von oben ein zweites Aluminiumprofil 57 hineinpasst. Der vertikale Abschnitt 58 des Profils 57 wird vom Profil 56, gegen­über dem Verdampferrohr 54, gegen die gekühlte Wand 51 gepresst und dadurch wirksam gekühlt.On the rear wall 51 of the cooled compartment, which is made of a good heat-conducting material, an aluminum profile 56 is attached in a suitable manner, e.g. fixed by gluing, riveting, screwing or spot welding, into which a second aluminum profile 57 fits from above. The vertical section 58 of the profile 57 is pressed by the profile 56 against the evaporator tube 54 against the cooled wall 51 and is thereby effectively cooled.

Der obere, horizontale Abschnitt des Profils 57 dient als Auflage für Eiswürfelschalen. Bei dieser Anordnung kann das Profil 57 vom Benützer nach Bedarf wiederholt eingesetzt oder entfernt werden.The upper, horizontal section of the profile 57 serves as a support for ice cube trays. With this arrangement, the profile 57 can be repeatedly inserted or removed by the user as needed.

Bei engen Raumverhältnissen kann es von wesentlichem Vorteil sein, wenn die Türe des gekühlten Faches oder die Türen beider Fächer als Schiebetüren ausgeführt sind.In tight spaces, it can be of great advantage if the doors of the cooled compartment or the doors of both compartments are designed as sliding doors.

Eine interessante Möglichkeit zur Sichtbarmachung des Kühlbarinhal­tes, selbst bei geschlossener Türe, ist die Verwendung von durch­sichtigen Isolierglas-Panelen als Türplatten.An interesting way to make the contents of the cooler visible, even when the door is closed, is to use transparent insulating glass panels as door panels.

Claims (9)

1. Kühlbar aus mindestens einem durch ein Absorptionskühlaggregat (10, 11) mit druckausgleichendem Hilfsgas gekühlten und wärmeiso­lierten Fach (2) und mindestens einem daneben angeordneten unge­kühtlen Fach (3) bestehend, dadurch gekennzeichnet, dass die im Betrieb nicht kalten Teile (10) des Absorptionskühlaggregates hinter dem ungekühlten Fach (3) angeordnet sind.1. Coolable from at least one cooled by an absorption cooling unit (10, 11) with pressure-compensating auxiliary gas and insulated compartment (2) and at least one adjacent uncooled compartment (3), characterized in that the non-cold parts (10) of the Absorption cooling unit are arranged behind the uncooled compartment (3). 2. Kühlbar nach Patentanspruch l, dadurch gekennzeichnet, dass die Innenwand (5, 21, 31, 51) des gekühlten und wärmeisolierten Faches (2) ganz oder teilweise aus gut wärmeleitendem Material, vorzugsweise Aluminiumblech, besteht oder isolationsseitig ganz oder teilweise mit gut wärmeleitendem Material (22) bedeckt ist und durch Kontakt mit dem Verdampfer (11, 24, 32, 54) des Absorp­tionskühlaggregates gekühlt wird.2. Coolable according to claim 1, characterized in that the inner wall (5, 21, 31, 51) of the cooled and heat-insulated compartment (2) consists entirely or partially of a good heat-conducting material, preferably aluminum sheet, or completely or partially on the insulation side with good heat-conducting Material (22) is covered and is cooled by contact with the evaporator (11, 24, 32, 54) of the absorption cooling unit. 3. Kühlbar, nach Patentanspruch 1 oder 2, dadurch gekennzeich­net, dass der Verdampfer (11, 24, 32, 54) des Absorptionskühlaggre­gates in Kontakt mit der Aussenseite der gut wärmeleitenden Innen­wand (5, 31, 51) oder Innenwandbedeckung (22) des gekühlten Faches (2) und innerhalb dessen Wärmeisolation (4, 25, 34, 55) angeordnet ist.3. Coolable, according to claim 1 or 2, characterized in that the evaporator (11, 24, 32, 54) of the absorption cooling unit in contact with the outside of the heat-conducting inner wall (5, 31, 51) or inner wall covering (22) of the cooled Compartment (2) and within the thermal insulation (4, 25, 34, 55) is arranged. 4. Kühlbar nach einem der Patentanspruche 1 bis 3, dadurch ge­kennzeichnet, dass an der gut wärmeleitenden Innenwand (5, 31, 51) oder Innenwandbedeckung (22) des gekühlten Faches (2) ein aus gut wärmeleitendem Material bestehendes Profil (23, 33), welches der Aufnahme und dem Festhalten des Verdampfers (11, 24, 32, 54) dient, in geeigneter Weise befestigt ist.4. Coolable according to one of the claims 1 to 3, characterized in that on the good heat-conducting inner wall (5, 31, 51) or inner wall covering (22) of the cooled compartment (2) a profile consisting of good heat-conducting material (23, 33) , which is used to hold and hold the evaporator (11, 24, 32, 54) in a suitable manner. 5. Kühlbar nach einem der Patentansprüche 1 bis 4, dadurch ge­kennzeichnet, dass an der der Warmeisolation (4) zugewandten Seite der Innenwand (5) des gekühlten Faches (2) mindestens ein geschlos­senes, Wärmeübertragungsflüssigkeit enthaltendes Sekundär-Kühlsystem (43), vorzugsweise in Rohrschlangenform, anliegt.5. Coolable according to one of the claims 1 to 4, characterized in that on the side facing the heat insulation (4) the inner wall (5) of the cooled compartment (2) bears at least one closed secondary cooling system (43) containing heat transfer fluid, preferably in the form of a coil. 6. Kühlbar nach einem der Patentansprüche 1 bis 5, dadurch ge­kennzeichnet, dass an der Innenseite der Rückwand (51) des gekühlten Faches (2) in der dem Verdampfer (11, 24, 34, 42, 54) gegenüber liegenden Gegend zum Zwecke der Eiswürfelbereitung ein aus gut wär­meleitendem Material bestehendes Profil (57), vorzugsweise auf leicht aufsetzbare und entfernbare Weise, befestigt ist.6. Coolable according to one of the claims 1 to 5, characterized in that on the inside of the rear wall (51) of the cooled compartment (2) in the area opposite the evaporator (11, 24, 34, 42, 54) for the purpose of Ice cube preparation, a profile (57) consisting of a good heat-conducting material is attached, preferably in an easily attachable and removable manner. 7. Kühlbar nach einem der Patentansprüche 1 bis 6, dadurch ge­kennzeichnet, dass ihre Gesamtbautiefe höchstens 30 cm beträgt.7. Coolable according to one of claims 1 to 6, characterized in that its overall depth is at most 30 cm. 8. Kühlbar nach einem der Patentansprüche l bis 7, dadurch ge­kennzeichnet, dass das gekühlte Fach (2) mit einer oder mehreren wärmeisolierten Schiebetüren versehen ist.8. Coolable according to one of the claims l to 7, characterized in that the cooled compartment (2) is provided with one or more heat-insulated sliding doors. 9. Kühlbar nach einem der Patentansprüche l bis 8, dadurch ge­kennzeichnet, dass die Türe des gekühlten Faches (2) aus durchsich­tigem Isolierglas-Panel besteht.9. Coolable according to one of claims 1 to 8, characterized in that the door of the cooled compartment (2) consists of transparent insulating glass panel.
EP87810067A 1986-02-04 1987-02-03 Refrigerated bar with absorption refrigeration unit Expired - Lifetime EP0233149B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH408/86A CH668633A5 (en) 1986-02-04 1986-02-04 REFRIGERABLE WITH ABSORPTION COOLING UNIT.
CH408/86 1986-02-04

Publications (2)

Publication Number Publication Date
EP0233149A1 true EP0233149A1 (en) 1987-08-19
EP0233149B1 EP0233149B1 (en) 1991-01-02

Family

ID=4186359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87810067A Expired - Lifetime EP0233149B1 (en) 1986-02-04 1987-02-03 Refrigerated bar with absorption refrigeration unit

Country Status (8)

Country Link
US (1) US4770003A (en)
EP (1) EP0233149B1 (en)
AU (1) AU6891287A (en)
CA (1) CA1277502C (en)
CH (1) CH668633A5 (en)
DE (1) DE3766840D1 (en)
ES (1) ES2023214B3 (en)
WO (1) WO1987004777A1 (en)

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WO2008142412A1 (en) * 2007-05-22 2008-11-27 4Energy Ltd. Temperature-controlled cabinet

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
KR101147779B1 (en) 2010-10-28 2012-05-25 엘지전자 주식회사 A refrigerator comprising a vaccum space

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US2274660A (en) * 1938-12-31 1942-03-03 Hoover Co Refrigeration
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Also Published As

Publication number Publication date
US4770003A (en) 1988-09-13
WO1987004777A1 (en) 1987-08-13
ES2023214B3 (en) 1992-01-01
AU6891287A (en) 1987-08-25
CH668633A5 (en) 1989-01-13
DE3766840D1 (en) 1991-02-07
EP0233149B1 (en) 1991-01-02
CA1277502C (en) 1990-12-11

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