EP0632986A1 - Cooling device for the storage of pastries - Google Patents

Cooling device for the storage of pastries Download PDF

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Publication number
EP0632986A1
EP0632986A1 EP94108589A EP94108589A EP0632986A1 EP 0632986 A1 EP0632986 A1 EP 0632986A1 EP 94108589 A EP94108589 A EP 94108589A EP 94108589 A EP94108589 A EP 94108589A EP 0632986 A1 EP0632986 A1 EP 0632986A1
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EP
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Prior art keywords
air
container
cooling device
supply
cooling
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Granted
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EP94108589A
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German (de)
French (fr)
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EP0632986B1 (en
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Edwin Thinius
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0404—Cases or cabinets of the closed type
    • A47F3/0408—Cases or cabinets of the closed type with forced air circulation
    • 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
    • F25D15/00—Devices not covered by group F25D11/00 or F25D13/00, e.g. non-self-contained movable devices

Definitions

  • the invention relates to an open cooling device for the storage of pastries, in particular the storage of chocolate-coated dry biscuits, in which a cooling unit is arranged in the area of a receptacle for the pastries, the heat exchanger of which is acted upon by an air flow generated by fans, the air supply in the lower region of the container and the air discharge in its upper region takes place while the side walls of the container are hermetically sealed.
  • a disadvantage of this known arrangement is that such a cooling device for pastries, in particular for dry biscuits coated with chocolate, is only suitable to a limited extent is because the air cooled down by means of the heat exchanger of the cooling unit on the one hand extracts moisture from the pastry, but on the other hand leaves too much residual heat that cannot be dissipated, so that the chocolate coating of the pastry can reach a temperature range of around 30 to 32 ° C. In this area, however, the chocolate begins to melt. However, this leads to the melting or melting chocolate coating getting a gray haze, which makes it unsightly and also affects its taste.
  • the invention is therefore based on the object to design a cooling device of the type mentioned so that the adverse influence on the pastry is avoided and that it is ensured that chocolate-coated dry biscuits can be stored over a long period of time (several days).
  • the cooling air is generated by means of an air conditioner, which is arranged in a larger spatial distance from the container of the cooling device, and which is connected via an air supply line to the container for the pastries, the from Air conditioner generated air is subject to drying by the air conditioner.
  • the container for the pastry is supplied with comparatively dry air, which is also cooled, so that temperatures in the container which are around 15 to 20 ° C., in a range in which a Chocolate coating is not yet melting.
  • the supply of relatively dry air also ensures that despite the cooling and drying of the pastry body - i.e. the carrier of the coating - neither its consistency nor its taste structure is impaired, because moisture is hardly removed from the pastry despite the comparatively high temperature of the cooling air .
  • the dried cooling air coming from the air conditioning unit has an initial temperature of approximately 15 to 18 ° C. It is particularly expedient if the cooling air is passed through at least one supply air pipe, which makes it possible for the different prevailing at the beginning and at the end of the supply air pipe Pressures are taken into account and balanced.
  • the supply air pipes expediently extend approximately over the entire length (or width) of the container, with openings being provided for the purpose of uniform air pressure distribution over the length of the supply air pipe or pipes, the diameter of which from the start of the supply air pipe or pipes into the container up to increase at the end of its entry.
  • the supply air pipe or the supply air pipes is at least above the biscuits in the container.
  • the space in which the air conditioning unit is located is at a spatial distance from the container and is also hermetically sealed from the inside air in the container in order to rule out any influence of the ambient air (room air) on the air conditioning unit.
  • the air conditioner is provided with devices for killing germs, for example by ionization or by UV rays.
  • a particularly advantageous arrangement is that the supply air pipe is guided through it in a central region of the container, rotatable nozzles being used instead of the holes mentioned above in the supply air pipe, so that there is the possibility of rotating these nozzles relative to the supply air pipe that the air radiation points downwards or obliquely downwards. If this is the case, a carrier can be arranged directly under this air radiation, on which the cooling biscuits are supported.
  • the carrier can run inclined towards the viewer, because in this way the air flowing in above the inclined carrier flows down along the carrier and thus has part in the cooling.
  • a receptacle 1 which has storage plates 2, on which the biscuits 3 to be cooled are supported and can be removed upwards.
  • the pastry pieces 3 are cooled via a supply air pipe 5 provided with bores or openings 4, which is connected to an air conditioning unit 7 via a connecting line 6, the air conditioning unit 7 being arranged in a different room than the container.
  • the air conditioner 7 is located on a lower floor. As a result, the ambient air of the cooling device 1 cannot affect the air conditioner.
  • the cooling air flows above the biscuits 3 into the container and, due to its lower temperature, moves in the direction of the Arrows 8 down. It then exits in the bottom area of the container 1.
  • the cooling air coming from the air conditioner 7 has a relatively high flow pressure, so that it can flow through the container from bottom to top according to arrow 9, in the direction of arrows 10 again to resign.
  • the side walls 11 of the container indicated in FIG. 2 are arranged such that they hermetically seal the container 1 in the side region.
  • FIG. 3 shows a perspective view of a variant of the embodiment according to FIG. 1.
  • an inclined carrier 12 which serves to store the chocolate-coated pastry pieces 13, the supply air line 5 above the carrier 12 (cf. FIG. 1 ) is arranged.
  • the edge of the carrier 12 connects sealingly to the respective side wall, not shown in FIG. 3.
  • the air of lower temperature supplied via the air conditioning unit 7 initially acts against the inclined carrier 12 from top to bottom, in order to then be discharged along the carrier in the direction of arrow 14 to the outside.
  • the bottom area of the container 1 is provided with a thicker thermal insulation layer 15.
  • other biscuits 16 can also be stored, which can then lie on a carrier 17 arranged above the supply air pipe 5, the carrier 17 also being cooled, but not as intensely as the one below of the supply air tube 5 lying carrier 12.
  • the carrier 17 can also sealingly connect with its edges to the side wall not shown in FIG. 3 (see FIG. 2).
  • the entire device can be provided in a manner known per se with a lighting device 18 which is arranged above the upper support 17 and enables the viewer to be able to look into the container 1 through the front wall 19 made of glass and thus to be able to select the biscuits .
  • Fig. 4 shows a schematic perspective view of an embodiment of the end 5a of the supply air pipe 5, wherein, as can be seen from Fig. 4, the openings 4 (see also Fig. 1) in the supply air pipe increase in diameter upstream or a decreasing diameter downstream have, so as to ensure that there is a uniform flow distribution below the supply air pipe 5 inside the container 1.
  • the direction of flow upstream is indicated by arrow 20. So there are first the smaller holes 4 with higher pressure and then with weakened ones falling pressure flows towards the larger holes 4.
  • Fig. 5 is the section V-V of FIG. 4 through the supply air pipe 5 and shows the preferred position of the openings 4 distributed over the circumference of the supply air pipe 5, which are arranged distributed over about 90 °.
  • the arrows that illustrate the outflow of the cooling air are designated by 21.
  • the end of the supply air pipe 5 is rotatably attached to the supply air line in the direction of the double arrow 22, so that the flow direction 21 can be changed so that an optimal cooling effect is produced.
  • FIG. 6 shows the arrangement according to FIG. 3 in connection with the air conditioning unit 7, the container 1 and the air conditioning unit 7 likewise being located on different floors and being separated from one another by a schematically indicated building ceiling 23.
  • the supply air from the air conditioner 7 takes place in the direction of the arrows 24, the supply air line being designated as 6 in FIG. 1.
  • the supply air pipe 5 is pivotally attached in the manner described via a rotary connection 25.
  • FIG. 8 shows an embodiment of a modified nozzle 27 which, as indicated by dashed lines, can be designed with a swivel mechanism. 9 that the nozzle 27 can have an annular slot 28 which further promotes even air distribution.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Confectionery (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

An open cooling device (refrigerating device) (1) for the storage of pastries (3), in particular the storage of chocolate-coated dry pastries, in which there is arranged in the region of a receiving container for the pastries a cooling plant (refrigerating plant) (7), the heat exchanger of which is impinged by an air flow generated by means of fans, the air supply taking place in the lower region of the container and the air discharge taking place in the upper region thereof, while the side walls of the container are hermetically sealed, is to be designed in such a way that the disadvantageous influencing of the pastries is avoided and that it is ensured that even chocolate-coated dry pastries can be stored for relatively long periods of time (several days). For this purpose, it is provided according to the invention that the cooling air be generated by means of an air conditioning unit (7) which is arranged in a space located at a relatively large distance from the container (1) of the cooling device and which is connected via an air supply conduit (6) to the container (1) for the pastries, the supply air generated by the air conditioning unit being subjected to drying by the air conditioning unit. <IMAGE>

Description

Die Erfindung betrifft eine offene Kühlvorrichtung für die Lagerung von Gebäck, insbesondere die Lagerung von mit Schokolade überzogenem Trockengebäck, bei welcher im Bereich eines Aufnahmebehälters für das Gebäck ein Kühlaggregat angeordnet ist, dessen Wärmetauscher von einem mittels Ventilatoren erzeugten Luftstrom beaufschlagt wird, wobei die Luftzufuhr im unteren Bereich des Behälters und die Luftabfuhr in dessen oberen Bereich stattfindet, während die Seitenwände des Behälters hermetisch abgeschlossen sind.The invention relates to an open cooling device for the storage of pastries, in particular the storage of chocolate-coated dry biscuits, in which a cooling unit is arranged in the area of a receptacle for the pastries, the heat exchanger of which is acted upon by an air flow generated by fans, the air supply in the lower region of the container and the air discharge in its upper region takes place while the side walls of the container are hermetically sealed.

Nachteilig bei dieser bekannten Anordnung ist es, daß eine derartige Kühlvorrichtung für Gebäck, insbesondere für mit Schokolade überzogenes Trockengebäck nur bedingt geeignet ist, weil die mittels des Wärmetauschers des Kühlaggregates heruntergekühlte Luft einerseits dem Gebäck Feuchtigkeit entzieht, andererseits aber zu viel Restwärme übrig läßt, die nicht abgeführt werden kann, so daß der Schokoladenüberzug des Gebäcks in einen Temperaturbereich von etwa 30 bis 32° C geraten kann. In diesem Bereich beginnt aber die Schokolade zu schmelzen. Dies führt aber dazu, daß der schmelzende oder anschmelzende Schokoladenüberzug einen Grauschleier bekommt, der ihn unansehnlich macht und auch seinen Geschmack beeinträchtigt.A disadvantage of this known arrangement is that such a cooling device for pastries, in particular for dry biscuits coated with chocolate, is only suitable to a limited extent is because the air cooled down by means of the heat exchanger of the cooling unit on the one hand extracts moisture from the pastry, but on the other hand leaves too much residual heat that cannot be dissipated, so that the chocolate coating of the pastry can reach a temperature range of around 30 to 32 ° C. In this area, however, the chocolate begins to melt. However, this leads to the melting or melting chocolate coating getting a gray haze, which makes it unsightly and also affects its taste.

Der Erfindung liegt demgemäß die Aufgabe zugrunde, eine Kühlvorrichtung der eingangs genannten Art so auszubilden, daß die nachteilige Beeinflussung des Gebäcks vermieden wird und daß sichergestellt ist, daß auch mit Schokolade überzogenes Trockengebäck über längere Zeitdauer (mehrere Tage) gelagert werden kann.The invention is therefore based on the object to design a cooling device of the type mentioned so that the adverse influence on the pastry is avoided and that it is ensured that chocolate-coated dry biscuits can be stored over a long period of time (several days).

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Kühlluft mittels eines Klimagerätes erzeugt wird, das in einem in einem größeren räumlichen Abstand zum Behälter der Kühlvorrichtung liegenden Raum angeordnet ist, und das über eine Zuluftleitung mit dem Behälter für das Gebäck verbunden ist, wobei die vom Klimagerät erzeugte Zuluft einer Trocknung durch das Klimagerät unterliegt.This object is achieved in that the cooling air is generated by means of an air conditioner, which is arranged in a larger spatial distance from the container of the cooling device, and which is connected via an air supply line to the container for the pastries, the from Air conditioner generated air is subject to drying by the air conditioner.

Mit dieser Anordnung wird erreicht, daß dem Behälter für das Gebäck vergleichsweise trockene Luft zugeführt wird, die außerdem gekühlt ist, so daß sich Temperaturen in dem Behälter einstellen, die bei etwa 15 bis 20° C liegen, in einem Bereich also, in welchem ein Schokoladenüberzug noch nicht schmilzt. Durch die Zufuhr relativ trockener Luft wird außerdem erreicht, daß trotz der Kühlung und Trocknung der Gebäckkörper - also der Träger des Überzuges - weder in seiner Konsistenz noch in seiner Geschmacksstruktur beeinträchtigt wird, weil dem Gebäck trotz der vergleichsweise hohen Temperatur der Kühlluft Feuchtigkeit kaum entzogen wird.With this arrangement it is achieved that the container for the pastry is supplied with comparatively dry air, which is also cooled, so that temperatures in the container which are around 15 to 20 ° C., in a range in which a Chocolate coating is not yet melting. The supply of relatively dry air also ensures that despite the cooling and drying of the pastry body - i.e. the carrier of the coating - neither its consistency nor its taste structure is impaired, because moisture is hardly removed from the pastry despite the comparatively high temperature of the cooling air .

Außerdem hat sich in überraschender Weise gezeigt, daß die Feuchtigkeitsbilanz durch eine gleichmäßige Luftverteilung innerhalb des Behälters ausgeglichen bleibt, weil die Raumluft, die Zutritt zum Behälter hat, an diesem Ausgleich teilnimmt.In addition, it has surprisingly been found that the moisture balance remains balanced by an even air distribution within the container, because the room air that has access to the container participates in this compensation.

Besonders vorteilhaft ist es in diesem Zusammenhang, wenn die vom Klimagerät kommende getrocknete Kühlluft eine Ausgangstemperatur von etwa 15 bis 18° C hat. Besonders zweckmäßig ist es, wenn die Kühlluft durch wenigstens ein Zuluftrohr geleitet wird, welches es ermöglicht, daß die am Beginn und am Ende des Zuluftrohres vorherrschenden unterschiedlichen Drücke berücksichtigt und ausgeglichen werden. Die Zuluftrohre erstrecken sich zweckmäßigerweise etwa über die gesamte Länge (oder Breite) des Behälters, wobei zum Zwecke der gleichmäßigen Luftdruckverteilung über die Länge des oder der Zuluftrohre gleichmäßig verteilte Öffnungen vorgesehen sind, deren Durchmesser vom Eintrittsbeginn des Zuluftrohres oder der Rohre in den Behälter bis zu seinem Eintrittsende ansteigen.In this context, it is particularly advantageous if the dried cooling air coming from the air conditioning unit has an initial temperature of approximately 15 to 18 ° C. It is particularly expedient if the cooling air is passed through at least one supply air pipe, which makes it possible for the different prevailing at the beginning and at the end of the supply air pipe Pressures are taken into account and balanced. The supply air pipes expediently extend approximately over the entire length (or width) of the container, with openings being provided for the purpose of uniform air pressure distribution over the length of the supply air pipe or pipes, the diameter of which from the start of the supply air pipe or pipes into the container up to increase at the end of its entry.

Da Luft niedrigerer Temperatur sich gegenüber der Umgebungsluft mit höherer Temperatur nach unten bewegt, ist es besonders vorteilhaft, wenn sich das Zuluftrohr oder die Zuluftrohre zumindest oberhalb der im Behälter liegenden Gebäckstücke befindet.Since air at a lower temperature moves downward from the ambient air at a higher temperature, it is particularly advantageous if the supply air pipe or the supply air pipes is at least above the biscuits in the container.

Bei der erfindungsgemäßen Anordnung ist es wesentlich, daß der Raum, in dem sich das Klimagerät befindet, einen räumlichen Abstand zu dem Behälter hat und außerdem gegenüber der Innenluft im Behälter hermetisch abgeschlossen ist, um einen Einfluß der Umgebungsluft (Raumluft) auf das Klimagerät auszuschließen.In the arrangement according to the invention, it is essential that the space in which the air conditioning unit is located is at a spatial distance from the container and is also hermetically sealed from the inside air in the container in order to rule out any influence of the ambient air (room air) on the air conditioning unit.

Zweckmäßig kann es sein, wenn in an sich bekannter Weise das Klimagerät mit Vorrichtungen zur Keimabtötung, beispielsweise durch Ionisation oder durch UV-Strahlen versehen ist.It may be expedient if, in a manner known per se, the air conditioner is provided with devices for killing germs, for example by ionization or by UV rays.

Eine besonders vorteilhafte Anordnung besteht darin, daß das Zuluftrohr in einem mittleren Bereich des Behälters quer durch diesen geführt ist, wobei anstelle der oben erwähnten Löcher in dem Zuluftrohr drehbare Düsen eingesetzt sind, so daß die Möglichkeit besteht, diese Düsen relativ zum Zuluftrohr so zu drehen, daß die Luftabstrahlung nach unten bzw. schräg nach unten weist. Ist dies der Fall, kann unmittelbar unter dieser Luftabstrahlung ein Träger angeordnet sein, auf welchem die kühlenden Gebäckstücke aufgelagert sind.A particularly advantageous arrangement is that the supply air pipe is guided through it in a central region of the container, rotatable nozzles being used instead of the holes mentioned above in the supply air pipe, so that there is the possibility of rotating these nozzles relative to the supply air pipe that the air radiation points downwards or obliquely downwards. If this is the case, a carrier can be arranged directly under this air radiation, on which the cooling biscuits are supported.

Der Träger kann geneigt zum Beschauer hin verlaufen, weil auf diese Weise die oberhalb des geneigt liegenden Trägers zuströmende Luft am Träger entlang nach unten strömt und damit an der Kühlung teil hat.The carrier can run inclined towards the viewer, because in this way the air flowing in above the inclined carrier flows down along the carrier and thus has part in the cooling.

Für die Luftzufuhr und die oben erwähnten drehbaren Düsen kann es vorteilhaft sein, wenn es sich um Düsen mit einem Ringspalt handelt, um gleichsam eine Zerstäuberwirkung zu erzielen und damit für eine möglichst gleichmäßige Luftverteilung und Luftzufuhr im Behälter Sorge zu tragen.For the air supply and the above-mentioned rotatable nozzles, it can be advantageous if there are nozzles with an annular gap in order to achieve an atomizing effect, as it were, and thus to ensure the most uniform possible air distribution and air supply in the container.

Die Erfindung wird im folgenden anhand von Ausführungsbeispielen in der Zeichnung näher erläutert.

Fig. 1
zeigt in perspektivischer Darstellung eine Ausführungsform der erfindungsgemäßen Anordnung.
Fig. 2
zeigt in perspektivischer schematischer Darstellung die Luftströmung innerhalb des Aufnahmebehälters für Gebäck.
Fig. 3
ist in perspektivischer Darstellung ein Ausschnitt aus einer weiteren Ausführungsform der erfindungsgemäßen Anordnung bei abgenommener Seitenwand.
Fig. 4
ist in perspektivischer Darstellung das Ende eines innerhalb des Behälters wirksamen Zuluftrohres.
Fig. 5
ist der Schnitt V-V durch das Rohrende nach Fig. 4.
Fig. 6
zeigt in perspektischer Darstellung den Anschluß des Behälters an eine von einem Klimagerät beaufschlagte Zuluftleitung.
Fig. 7
zeigt in schematischer Darstellung eine Ausführungsform einer in den Umfang der Zuluftrohre einsetzbaren Düse.
Fig. 8
zeigt eine abgewandelte Düse, die einerseits schwenkbar ist und andererseits einen Ringkanal zum Austritt der Zuluft aufweist.
Fig. 9
ist die Ansicht IX-IX nach Fig. 8.
The invention is explained in more detail below on the basis of exemplary embodiments in the drawing.
Fig. 1
shows a perspective view of an embodiment of the arrangement according to the invention.
Fig. 2
shows a perspective schematic representation of the air flow within the receptacle for pastries.
Fig. 3
is a perspective view of a section of another embodiment of the arrangement according to the invention with the side wall removed.
Fig. 4
is a perspective view of the end of an effective air supply pipe inside the container.
Fig. 5
is the section VV through the pipe end according to FIG. 4.
Fig. 6
shows a perspective view of the connection of the container to a supply air line acted upon by an air conditioner.
Fig. 7
shows a schematic representation of an embodiment of a nozzle that can be used in the scope of the supply air pipes.
Fig. 8
shows a modified nozzle, which is pivotable on the one hand and on the other hand has an annular channel for outlet of the supply air.
Fig. 9
is the view IX-IX of FIG. 8.

Gemäß Fig. 1 ist ein Aufnahmebehälter 1 vorgesehen, der Lagerplatten 2 aufweist, auf welchem die zu kühlenden Gebäckstücke 3 aufgelagert und nach oben entnehmbar sind.According to FIG. 1, a receptacle 1 is provided, which has storage plates 2, on which the biscuits 3 to be cooled are supported and can be removed upwards.

Die Kühlung der Gebäckstücke 3 erfolgt über ein mit Bohrungen oder Öffnungen 4 versehenes Zuluftrohr 5, welches über eine Verbindungsleitung 6 mit einem Klimagerät 7 in Verbindung steht, wobei das Klimagerät 7 in einem anderen Raum als der Behälter angeordnet ist. Bei der dargestellten Ausführungsform befindet sich das Klimagerät 7 in einem unteren Stockwerk. Damit kann sich die Umgebungsluft der Kühlvorrichtung 1 auf das Klimagerät nicht auswirken.The pastry pieces 3 are cooled via a supply air pipe 5 provided with bores or openings 4, which is connected to an air conditioning unit 7 via a connecting line 6, the air conditioning unit 7 being arranged in a different room than the container. In the illustrated embodiment, the air conditioner 7 is located on a lower floor. As a result, the ambient air of the cooling device 1 cannot affect the air conditioner.

Bei der Anordnung nach Fig. 1 strömt also die Kühlluft oberhalb der Gebäckstücke 3 in den Behälter hinein und bewegt sich aufgrund ihrer niedrigeren Temperatur in Richtung der Pfeile 8 nach unten. Sie tritt dann im Bodenbereich des Behälters 1 wieder aus.In the arrangement according to FIG. 1, the cooling air flows above the biscuits 3 into the container and, due to its lower temperature, moves in the direction of the Arrows 8 down. It then exits in the bottom area of the container 1.

Bei der Ausführungsform nach Fig. 2 hat die vom Klimagerät 7 (vgl. Fig. 1) kommende Kühlluft einen relativ hohen Strömungsdruck, so daß sie gemäß dem Pfeil 9 von unten nach oben durch den Behälter strömen kann, um in Richtung der Pfeile 10 wieder auszutreten. In beiden Fällen sind die in Fig. 2 angedeuteten Seitenwände 11 des Behälters so angeordnet, daß sie im Seitenbereich den Behälter 1 hermetisch abschließen.In the embodiment according to FIG. 2, the cooling air coming from the air conditioner 7 (cf. FIG. 1) has a relatively high flow pressure, so that it can flow through the container from bottom to top according to arrow 9, in the direction of arrows 10 again to resign. In both cases, the side walls 11 of the container indicated in FIG. 2 are arranged such that they hermetically seal the container 1 in the side region.

Fig. 3 zeigt in perspektivischer Darstellung eine Abwandlugn der Ausführungsform nach Fig. 1. Bei dieser Anordnung ist ein geneigt verlaufender Träger 12 vorgesehen, welcher der Lagerung der schokoladenüberzogenen Gebäckstücke 13 dient, wobei oberhalb des Trägers 12 die Zuluftleitung 5 (vgl. Fig. 1) angeordnet ist. Der Träger 12 schließt mit seinen Kanten abdichtend an die in Fig. 3 nicht dargestellte jeweilige Seitenwandung an. Wie im Zusammenhang mit Fig. 1 beschrieben, wirkt die über das Klimagerät 7 zugeführte Luft niedrigerer Temperatur zunächst von oben nach unten gegen den geneigt liegenden Träger 12, um dann am Träger entlang in Richtung des Pfeiles 14 nach außen abgeführt zu werden. Zur Aufrechterhaltung möglichst gleichbleibenden Verhältnisse ist der Bodenbereich des Behälters 1 mit einer stärkeren Thermoisolierschicht 15 versehen.FIG. 3 shows a perspective view of a variant of the embodiment according to FIG. 1. In this arrangement, an inclined carrier 12 is provided, which serves to store the chocolate-coated pastry pieces 13, the supply air line 5 above the carrier 12 (cf. FIG. 1 ) is arranged. The edge of the carrier 12 connects sealingly to the respective side wall, not shown in FIG. 3. As described in connection with FIG. 1, the air of lower temperature supplied via the air conditioning unit 7 initially acts against the inclined carrier 12 from top to bottom, in order to then be discharged along the carrier in the direction of arrow 14 to the outside. In order to maintain conditions that are as constant as possible, the bottom area of the container 1 is provided with a thicker thermal insulation layer 15.

In den so ausgestalteten Behälter 1 können neben den empfindlichen schokoladeüberzogenen Gebäckstücken 13 auch andere Gebäckstücke 16 eingelagert sein, die dann auf einem oberhalb des Zuluftrohres 5 angeordneten Träger 17 liegen können, wobei der Träger 17 zwar auch gekühlt wird, jedoch nicht so intensiv wie der unterhalb des Zuluftrohres 5 liegende Träger 12. Auch der Träger 17 kann mit seinen Kanten abdichtend an die in Fig. 3 nicht dargestellte Seitenwandung (s. Fig. 2) anschließen.In the container 1 designed in this way, in addition to the sensitive chocolate-coated biscuits 13, other biscuits 16 can also be stored, which can then lie on a carrier 17 arranged above the supply air pipe 5, the carrier 17 also being cooled, but not as intensely as the one below of the supply air tube 5 lying carrier 12. The carrier 17 can also sealingly connect with its edges to the side wall not shown in FIG. 3 (see FIG. 2).

Die Gesamtvorrichtung kann in an sich bekannter Weise mit einer Beleuchtungseinrichtung 18 versehen sein, die oberhalb des oberen Trägers 17 angeordnet ist und es dem Beschauer ermöglicht, durch die aus Glas bestehende Vorderwand 19 in den Behälter 1 hineinsehen zu können und damit die Gebäckstücke auswählen zu können.The entire device can be provided in a manner known per se with a lighting device 18 which is arranged above the upper support 17 and enables the viewer to be able to look into the container 1 through the front wall 19 made of glass and thus to be able to select the biscuits .

Fig. 4 zeigt in schematischer perspektivischer Darstellung eine Ausführungsform des Endes 5a des Zuluftrohres 5, wobei, wie aus Fig. 4 hervorgeht, die Durchbrüche 4 (vgl. auch Fig. 1) in dem Zuluftrohr stromaufwärts im Durchmesser zunehmen bzw. stromabwärts einen abnehmenden Durchmesser aufweisen, um so dafür Sorge zu tragen, daß es zu einer gleichmäßigen Strömungsverteilung unterhalb des Zuluftrohres 5 im Inneren des Behälters 1 kommt. Die Strömungsrichtung stromauf ist durch den Pfeil 20 gekennzeichnet. Es werden also zunächst mit höherem Druck die kleineren Löcher 4 und dann mit abgeschwächtem abfallenden Druck die größeren Löcher 4 angeströmt.Fig. 4 shows a schematic perspective view of an embodiment of the end 5a of the supply air pipe 5, wherein, as can be seen from Fig. 4, the openings 4 (see also Fig. 1) in the supply air pipe increase in diameter upstream or a decreasing diameter downstream have, so as to ensure that there is a uniform flow distribution below the supply air pipe 5 inside the container 1. The direction of flow upstream is indicated by arrow 20. So there are first the smaller holes 4 with higher pressure and then with weakened ones falling pressure flows towards the larger holes 4.

Fig. 5 ist der Schnitt V-V nach Fig. 4 durch das Zuluftrohr 5 und läßt die bevorzugte Lage der über den Umfang des Zuluftrohres 5 verteilten Durchbrüche 4 erkennen, die über etwa 90° verteilt angeordnet sind. Die die Ausströmung der Kühlluft verdeutlichenden Pfeile sind mit 21 bezeichnet. Um die Strömungsrichtung einzustellen, ist das Ende des Zuluftrohres 5 an der Zuluftleitung in Richtung des Doppelpfeiles 22 drehbar angebracht, so daß die Strömungsrichtung 21 so veränderbar ist, daß ein optimaler Kühlungseffekt entsteht.Fig. 5 is the section V-V of FIG. 4 through the supply air pipe 5 and shows the preferred position of the openings 4 distributed over the circumference of the supply air pipe 5, which are arranged distributed over about 90 °. The arrows that illustrate the outflow of the cooling air are designated by 21. In order to adjust the direction of flow, the end of the supply air pipe 5 is rotatably attached to the supply air line in the direction of the double arrow 22, so that the flow direction 21 can be changed so that an optimal cooling effect is produced.

Fig. 6 zeigt die Anordnung nach Fig. 3 in Verbindung mit dem Klimagerät 7, wobei hier ebenfalls der Behälter 1 und das Klimagerät 7 sich in unterschiedlichen Stockwerken befinden und durch eine schematisch angedeutete Gebäudedecke 23 voneinander getrennt sind. Die Zuluft vom Klimagerät 7 erfolgt in Richtung der Pfeile 24, wobei die Zuluftleitung wie in Fig. 1 mit 6 bezeichnet ist. Am oberen Ende der Zuluftleitung 6 ist das Zuluftrohr 5 über eine Drehverbindung 25 in der beschriebenen Weise schwenkbar angebracht.FIG. 6 shows the arrangement according to FIG. 3 in connection with the air conditioning unit 7, the container 1 and the air conditioning unit 7 likewise being located on different floors and being separated from one another by a schematically indicated building ceiling 23. The supply air from the air conditioner 7 takes place in the direction of the arrows 24, the supply air line being designated as 6 in FIG. 1. At the upper end of the supply air line 6, the supply air pipe 5 is pivotally attached in the manner described via a rotary connection 25.

Anstelle der einfachen Durchbrüche 4 im Zuluftrohr 5 können diese ganz oder teilweise mit Düsen 26 versehen sein, von denen eine schematische Ausführungsform in Fig. 7 dargestellt ist.Instead of the simple openings 4 in the supply air pipe 5, these can be provided in whole or in part with nozzles 26, of which a schematic embodiment is shown in FIG. 7.

Fig. 8 zeigt eine Ausführungsform einer abgewandelten Düse 27, die, wie gestrichelt angedeutet, mit einem Schwenkmechanismus ausgebildet sein kann. Aus Fig. 9 geht hervor, daß die Düse 27 einen Ringschlitz 28 aufweisen kann, der eine gleichmäßige Luftverteilung weiter begünstigt.FIG. 8 shows an embodiment of a modified nozzle 27 which, as indicated by dashed lines, can be designed with a swivel mechanism. 9 that the nozzle 27 can have an annular slot 28 which further promotes even air distribution.

Claims (14)

Offene Kühlvorrichtung für die Lagerung von Gebäck, insbesondere die Lagerung von mit Schokolade überzogenem Trockengebäck, bei welcher im Bereich eines Aufnahmebehälters für das Gebäck ein Kühlaggregat angeordnet ist, dessen Wärmetauscher von einem mittels Ventilatoren erzeugten Luftstrom beaufschlagt wird, wobei die Luftzufuhr im unteren Bereich des Behälters und die Luftabfuhr in dessen oberen Bereich stattfindet, während die Seitenwände des Behälters hermetisch abgeschlossen sind, dadurch gekennzeichnet, daß die Kühlluft mittels eines Klimagerätes (7) erzeugt wird, das in einem in einem größeren räumlichen Abstand zum Behälter (1) der Kühlvorrichtung liegenden Raum angeordnet ist und das über eine Zuluftleitung (6) mit dem Behälter (1) für das Gebäck verbunden ist, wobei die vom Klimagerät (7) erzeugte Zuluft einer Trocknung durch das Klimagerät (7) unterliegt.Open cooling device for the storage of pastries, in particular the storage of chocolate-coated dry biscuits, in which a cooling unit is arranged in the area of a receptacle for the pastries, the heat exchanger of which is acted upon by an air flow generated by fans, the air supply being in the lower region of the container and the air discharge takes place in the upper region thereof, while the side walls of the container are hermetically sealed, characterized in that the cooling air is generated by means of an air conditioner (7) which is located in a space at a greater spatial distance from the container (1) of the cooling device is arranged and which is connected to the container (1) for the pastries via a supply air line (6), the supply air generated by the air conditioning unit (7) being subject to drying by the air conditioning unit (7). Kühlvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die vom Klimagerät (7) kommende getrocknete Kühlluft eine Ausgangstemperatur von etwa 15 bis 18° C hat.Cooling device according to claim 1, characterized in that the dried cooling air coming from the air conditioner (7) has an initial temperature of approximately 15 to 18 ° C. Kühlvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Kühlluft durch wenigstens ein Zuluftrohr (5) geleitet wird, welches es ermöglicht, daß die am Beginn und am Ende des Zuluftrohres vorherrschenden unterschiedlichen Drücke berücksichtigt und ausgeglichen werden.Cooling device according to claim 1 or 2, characterized in that the cooling air is passed through at least one supply air pipe (5), which enables the different pressures prevailing at the beginning and end of the supply air pipe to be taken into account and compensated. Kühlvorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß das Zuluftrohr (5), oder die Zuluftrohre, sich etwa über die gesamte Länge (L) des Behälters (1) erstreckt, wobei zum Zwecke der gleichmäßigen Luftdruckverteilung über die Länge des oder der Zuluftrohre gleichmäßig verteilte Öffnungen (4) vorgesehen sind.Cooling device according to claim 3, characterized in that the supply air pipe (5), or the supply air pipes, extends approximately over the entire length (L) of the container (1), with uniformly distributed over the length of the supply air pipe or pipes for the purpose of uniform air pressure distribution Openings (4) are provided. Kühlvorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß vom Eintrittsbeginn des Zuluftrohres (5) oder der Zuluftrohre bis zum Eintrittsende der Zuluftrohre die Durchmesser der Öffnungen (4) ansteigen.Cooling device according to claim 4, characterized in that from the start of the inlet air pipe (5) or the inlet air pipes to the inlet end of the inlet air pipes The diameter of the openings (4) increases. Kühlvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sich das Zuluftrohr oder die Zuluftrohre (5) zumindest oberhalb der in dem Behälter (1) lagernden Gebäckstücke befindet.Cooling device according to one of the preceding claims, characterized in that the supply air pipe or the supply air pipes (5) is at least above the biscuits stored in the container (1). Kühlvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Klimagerät (7) gegenüber der Innenluft im Behälter (1) hermetisch abgeschlossen ist.Cooling device according to one of the preceding claims, characterized in that the air conditioning unit (7) is hermetically sealed from the inside air in the container (1). Kühlvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Klimagerät (7) mit Vorrichtungen zur Keimabtötung, beispielsweise durch Ionisation oder durch UV-Strahlen versehen ist.Cooling device according to one of the preceding claims, characterized in that the air conditioning device (7) is provided with devices for killing germs, for example by ionization or by UV rays. Kühlvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Zuluftrohr (5) in einem mittleren Bereich des Behälters (1) quer durch diesen geführt ist.Cooling device according to one of the preceding claims, characterized in that the supply air pipe (5) is guided transversely through the latter in a central region of the container (1). Kühlvorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß anstelle der Löcher (4) in dem Zuluftrohr (5) drehbare Düsen (26,27) in die Öffnungen eingesetzt sind.Cooling device according to one of the preceding claims, characterized in that rotatable nozzles (26, 27) are inserted into the openings instead of the holes (4) in the supply air pipe (5). Kühlvorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß die Düsen (26,27) so dreh- bzw. schwenkbar sind, daß die Luftabstrahlung aus dem Zuluftrohr (5) nach unten bzw. schräg nach unten weist.Cooling device according to claim 10, characterized in that the nozzles (26, 27) can be rotated or pivoted such that the air radiation from the supply air pipe (5) points downwards or obliquely downwards. Kühlvorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß unmittelbar unter der Luftabstrahlung aus den Öffnungen (4) des Zuluftrohres (5) oder aus den dort eingesetzten Düsen (26,27) ein Träger (12) angeordnet ist, auf welchem die zu kühlenden Gebäckstücke aufgelagert sind.Cooling device according to claim 11, characterized in that a carrier (12) is arranged directly under the air radiation from the openings (4) of the supply air pipe (5) or from the nozzles (26, 27) used there, on which the biscuits to be cooled are placed are. Kühlvorrichtung nach Anspruch 12, dadurch gekennzeichnet, daß der Träger (12) zum Betrachter hin geneigt verläuft, wobei die Winkellage der den Träger (12) antrömenden Kühlluft und der Neigungswinkel des Trägers (12) so gewählt sind, daß die Kühlluft am Träger (12) entlang nach unten strömt.Cooling device according to claim 12, characterized in that the carrier (12) is inclined towards the viewer, the angular position of the cooling air flowing towards the carrier (12) and the angle of inclination of the carrier (12) being selected such that the cooling air on the carrier (12 ) flows downwards. Kühlvorrichtung nach Anspruch 9 oder 10, dadurch gekennzeichnet, daß die der Luftzufuhr dienenden dreh- und schwenkbaren Düsen (27) mit einem Ringspalt (28) versehen sind, um für eine möglichst gleichmäßige Luftverteilung und Luftzufuhr im Behälter (1) Sorge zu tragen.Cooling device according to claim 9 or 10, characterized in that the rotatable and pivotable nozzles (27) serving for the air supply are provided with an annular gap (28) in order to ensure the most uniform possible air distribution and air supply in the container (1).
EP94108589A 1993-07-07 1994-06-04 Cooling device for the storage of pastries Expired - Lifetime EP0632986B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4322532 1993-07-07
DE4322532A DE4322532A1 (en) 1993-07-07 1993-07-07 Open cooling device for the storage of pastries

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EP0632986A1 true EP0632986A1 (en) 1995-01-11
EP0632986B1 EP0632986B1 (en) 1998-11-04

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AT (1) ATE172856T1 (en)
DE (2) DE4322532A1 (en)

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DE10040204A1 (en) * 2000-08-17 2002-02-28 Linde Ag Shop has refrigerated counters supplied with current of cold air from ventilators from basement or cellar via insulated pipes

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US4872320A (en) * 1987-12-11 1989-10-10 Sanyo Electric Co., Ltd. Refrigeration showcase
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US2855762A (en) * 1956-06-29 1958-10-14 Sulzer Ag Air-cooled system
DE7400624U (en) * 1974-01-09 1974-05-02 Ungermann E Refrigerated showcases, in particular for the storage and display of confectionery
DE3317372A1 (en) * 1983-05-13 1984-11-22 HS-Ingenieurplanung GmbH, 2800 Bremen Process for operating a building equipped with a refrigerating device, especially a greenhouse

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US4872320A (en) * 1987-12-11 1989-10-10 Sanyo Electric Co., Ltd. Refrigeration showcase
WO1990011009A1 (en) * 1989-03-29 1990-10-04 Airchitect I Söderhamn Ab Air conditioning unit for laboratory animals
DE9202420U1 (en) * 1992-02-25 1992-04-23 Fa. Awe Alterna, 8100 Garmisch-Partenkirchen, De

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10040204A1 (en) * 2000-08-17 2002-02-28 Linde Ag Shop has refrigerated counters supplied with current of cold air from ventilators from basement or cellar via insulated pipes

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EP0632986B1 (en) 1998-11-04
DE4322532A1 (en) 1995-01-12
DE59407207D1 (en) 1998-12-10
ATE172856T1 (en) 1998-11-15

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