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EP2697578B1 - Refrigeration appliance comprising an evaporation dish - Google Patents

Refrigeration appliance comprising an evaporation dish Download PDF

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Publication number
EP2697578B1
EP2697578B1 EP12715033.2A EP12715033A EP2697578B1 EP 2697578 B1 EP2697578 B1 EP 2697578B1 EP 12715033 A EP12715033 A EP 12715033A EP 2697578 B1 EP2697578 B1 EP 2697578B1
Authority
EP
European Patent Office
Prior art keywords
evaporation
refrigeration device
cooling air
condenser
ventilator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP12715033.2A
Other languages
German (de)
French (fr)
Other versions
EP2697578A1 (en
Inventor
Oscar De la Rosa
Frank Cifrodelli
Niels Liengaard
Sebastian Rau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP2697578A1 publication Critical patent/EP2697578A1/en
Application granted granted Critical
Publication of EP2697578B1 publication Critical patent/EP2697578B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/003—General constructional features for cooling refrigerating machinery
    • 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
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays
    • 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
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/141—Removal by evaporation
    • F25D2321/1411—Removal by evaporation using compressor heat
    • 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
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/144—Collecting condense or defrost water; Removing condense or defrost water characterised by the construction of drip water collection pans
    • F25D2321/1442—Collecting condense or defrost water; Removing condense or defrost water characterised by the construction of drip water collection pans outside a refrigerator
    • 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0022—Details for cooling refrigerating machinery using multiple air flows
    • 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0026—Details for cooling refrigerating machinery characterised by the incoming air flow
    • F25D2323/00266—Details for cooling refrigerating machinery characterised by the incoming air flow through the bottom

Definitions

  • the present invention relates to a refrigerator, in particular a household refrigerator, with a machine room and a mounted in the machine room on a compressor evaporation tray.
  • a refrigeration appliance is understood in particular to be a household refrigeration appliance, that is to say a refrigeration appliance used for household purposes or possibly even in the gastronomy sector, and in particular for storing food and / or beverages in household quantities at specific temperatures, such as, for example, a refrigerator, a freezer , a fridge freezer, a freezer or a wine storage cabinet.
  • Moisture from a storage chamber of such a refrigerator condenses in the course of operation on a cooling the storage chamber evaporator. If the evaporator heats up to more than 0 ° C between two operating phases, the condensate can flow off the evaporator; it is then collected in a gutter extending below the evaporator and drained from the refrigerator. In order to eliminate the drained condensate, it is customary to mount the evaporation tray on a compressor in a machine room arranged at the rear of the refrigerating appliance, so that the waste heat from the compressor heats the condensate and promotes its evaporation.
  • JP2002-350035 A discloses a machine room in which at the bottom a compressor, on the compressor an evaporation tray and above the evaporation tray a condenser are arranged. At the side of the evaporation tray is a fan arranged to blow air over the evaporation tray. The space below the fan remains unused. The engine room therefore takes up a lot of space and would result in an unfavorable ratio of device dimensions to usable refrigerator volume in a domestic refrigeration appliance.
  • JP 2000-111235 A shows a machine room of a refrigerator with a compressor, arranged on the compressor evaporation tray and a fan, which is located below the evaporation tray, next to the compressor.
  • the fan blows air in a horizontal direction against the compressor and against a sloping wall, which deflects the airflow upwards. Before this air can pass over the evaporation tray, it is deflected a second time on the ceiling of the engine room.
  • the sharper the direction changes, the weaker is the proportion of fan-driven airflow that reaches the evaporation tray, and the lower the evaporation.
  • JP 11 132633 A shows a machine room of a refrigerator in which a fan is arranged on a condenser to blow cooling air down into the condenser.
  • Object of the present invention is to provide a refrigeration device in which in a compact engine room efficient evaporation of condensation can be guaranteed.
  • the object is achieved by a refrigeration device with the features of claim 1.
  • the fan thus ensures even in confined spaces for a sufficient exchange of air between the space above the evaporation tray and the environment of the refrigerator and thus for a quick removal of water vapor from the engine room. In this way, efficient evaporation can be ensured despite the limited space available in a compact machine room.
  • a condenser is preferably located in the cooling air path upstream of the evaporation section so that the cooling air heats up on its way to the condenser before reaching the evaporation section. In this way, the two main heat sources of the refrigerator are fully exploited to promote evaporation.
  • the fan is mounted on the condenser.
  • the fan and the condenser form a structural unit which can be inserted in the machine room in the assembled state.
  • a suction opening for the cooling air is preferably formed on an underside of the condenser.
  • An outlet opening of the fan is preferably located at the level of the evaporation tray, so that a substantial portion of the air blown out by the fan sweeps over the water level of the evaporation tray, even if the cooling air path between the fan and the evaporation tray is not closed all around.
  • a wall the evaporation section to a back of the Refrigerating device limited.
  • a wall may in particular be formed integrally with the evaporation tray.
  • Fig. 1 shows a plan view of the back of the body 1 of a household refrigerator according to the invention.
  • a door not shown here is articulated in the usual way, which limits together with the body 1 a storage chamber for refrigerated goods.
  • a machine room 2 At the back of the body 1 is in Close to the ground in a manner known per se, a machine room 2, in which a compressor 4 and in an assembly 5 is mounted on extending near the bottom horizontal support rails 3.
  • the assembly 5 contains, as in Fig. 2 to see, in a tubular, top and bottom open housing 8 a condenser 6 and a fan 7.
  • the condenser 6 and the fan 7 are inserted from below or above in the housing 8, and the pre-assembled in this way assembly is in the Engine room 2 inserted over the open back.
  • the fan 7 is arranged with a vertical axis to drive a directed against the ceiling of the engine room air flow through the housing 8.
  • An exhaust opening 9 at the upper end of the housing 8 may be to the back of the body 1 through a in Fig. 1 dashed cover plate 10 may be shielded to deflect the fan 7 sucked through the condenser 6 through cooling air sideways, in the direction of an evaporation tray 11.
  • the evaporation tray 11 is mounted on the compressor 4 in direct heat-conducting contact therewith.
  • An upper edge 12 of the evaporation tray 11 is located on one of the assembly 5 facing side of the evaporation tray 11 and at the opposite side each approximately at the level of the exhaust opening 9 to the flow of cooling air from the exhaust opening 9 in an evaporation section 13, the down through the level of the water 14 is limited in the evaporation tray 11 and up through the ceiling 15 of the engine room 2, not to be affected.
  • Fig. 3 can be seen, extending to the rear wall of the body 1 adjacent side wall 16 of the evaporation tray 11 to just below the ceiling 15 to carry the flow of air in the evaporation section 13 loss.
  • the ceiling 15 above the evaporation tray 11 may have a downward projection 17 in order to increase the flow velocity of the air above the water level and thus to more effective evaporation.
  • the cross section of the Fig. 3 shows a portion of the storage chamber 18 of the refrigerator and arranged on the rear wall of this storage chamber 18 evaporator 19.
  • a formed at the bottom of the evaporator condensate collecting channel 20 is connected via a drain pipe 21 to the evaporation tray 11.
  • the compressor 4 is not directly cooled by the cooling air driven by the fan 7.
  • the air flow of the fan cools the water 14 and thus can absorb more heat from the compressor.
  • heated air can ascend at best in the gap 23 between the rear wall and building wall 22 and is co-flushed there by the cooling air flow.
  • a gap 24 is kept free, through which a part of the air expelled from the fan 7 can bypass the evaporation section 13 and instead flows around the side walls of the compressor 4.
  • the distribution of the air between the gap 24 and the evaporation section 13 can be determined by their free cross sections, the height of the fan 7 facing edge 12 of the evaporation tray 11, etc. according to the needs of the compressor 4 for direct cooling.
  • Fig. 5 shows in one too Fig. 1 analog view of a third embodiment of the refrigerator according to the invention.
  • the engine room 2 is completely closed in this embodiment to the rear by a vertical plate, which is not shown, however, to show the components inside the engine room 2 can.
  • the fan 7 of the assembly 5 sucks in cooling air via a channel 25 extending under the bearing chamber to the front of the body 1 and drives it through the evaporation section 13 to the side of the engine room 2 opposite the assembly 5. There, the cooling air is deflected downwards and flows around the side walls of the compressor 4 on its way to a second below the storage chamber 18 to the front of the body 1 extending channel 26.

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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)
  • Removal Of Water From Condensation And Defrosting (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Description

Die vorliegende Erfindung betrifft ein Kältegerät, insbesondere ein Haushaltskältegerät, mit einem Maschinenraum und einer in dem Maschinenraum auf einem Verdichter montierten Verdunstungsschale.The present invention relates to a refrigerator, in particular a household refrigerator, with a machine room and a mounted in the machine room on a compressor evaporation tray.

Unter einem Kältegerät wird insbesondere ein Haushaltskältegerät verstanden, also ein Kältegerät das zur Haushaltsführung in Haushalten oder eventuell auch im Gastronomiebereich eingesetzt wird, und insbesondere dazu dient Lebensmittel und/oder Getränke in haushaltsüblichen Mengen bei bestimmten Temperaturen zu lagern, wie beispielsweise ein Kühlschrank, ein Gefrierschrank, eine Kühlgefrierkombination, eine Gefriertruhe oder ein Weinlagerschrank.A refrigeration appliance is understood in particular to be a household refrigeration appliance, that is to say a refrigeration appliance used for household purposes or possibly even in the gastronomy sector, and in particular for storing food and / or beverages in household quantities at specific temperatures, such as, for example, a refrigerator, a freezer , a fridge freezer, a freezer or a wine storage cabinet.

Feuchtigkeit aus einer Lagerkammer eines solchen Kältegerätes kondensiert im Laufe des Betriebs an einem die Lagerkammer kühlenden Verdampfer. Wenn sich der Verdampfer zwischen zwei Betriebsphasen auf über 0°C erwärmt, kann das Kondensat vom Verdampfer abfließen; es wird dann in einer sich unter dem Verdampfer erstreckenden Rinne aufgefangen und aus dem Kältegerät abgeleitet. Um das abgeleitete Kondenswasser zu beseitigen, ist es gebräuchlich, in einem an der Rückseite des Kältegerätes angeordneten Maschinenraum die Verdunstungsschale auf einem Verdichter zu montieren, so dass die Abwärme des Verdichters das Kondenswasser erwärmt und seine Verdunstung fördert.Moisture from a storage chamber of such a refrigerator condenses in the course of operation on a cooling the storage chamber evaporator. If the evaporator heats up to more than 0 ° C between two operating phases, the condensate can flow off the evaporator; it is then collected in a gutter extending below the evaporator and drained from the refrigerator. In order to eliminate the drained condensate, it is customary to mount the evaporation tray on a compressor in a machine room arranged at the rear of the refrigerating appliance, so that the waste heat from the compressor heats the condensate and promotes its evaporation.

Da bei modernen, hocheffizienten Kühl- und Gefriergeräten nur noch wenig Abwärme erzeugt wird, wird es immer schwieriger, das Kondenswasser mit der Rate, mit der es anfällt, zu verdunsten. Die Oberfläche, die eine Verdunstungsschale maximal haben kann, ist durch die Abmessungen des Maschinenraums begrenzt, so dass durch eine Vergrößerung der Schalenfläche die Verdunstungsleistung nur begrenzt gesteigert werden kann. Versuche, die Verdunstungsoberfläche zu vergrößern, indem mehrere Schalen auf unterschiedlichen Niveaus angeordnet werden, sind auch nur eingeschränkt erfolgreich, da eine Vielzahl großflächiger flacher Schalen im Maschinenraum die Luftzirkulation behindert. Wenn aber mit Feuchtigkeit gesättigte Luft den Maschinenraum nur langsam verlassen kann, bremst dies wieder die Verdunstung. Da außerdem zusätzliche Schalen allenfalls denjenigen Platz im Maschinenraum nutzen können, der zwischen anderen dort montierten Komponenten wie etwa Verdichter, Verflüssiger etc. frei bleibt, wird eine große Zahl kompliziert geformter Schalen benötigt, was die Fertigungskosten erhöht. Es wurde auch bereits vorgeschlagen, die Verdunstung zu effektivieren, indem eine Rohrleitung mit verdichtetem, warmem Kältemittel aus dem Verdichter durch die Verdunstungsschale geführt ist. Auch dieser Ansatz verkompliziert jedoch deutlich den Aufbau der Kältemaschine und führt somit zu hohen Fertigungskosten.With low energy waste generated by modern, high efficiency refrigerators and freezers, it is becoming increasingly difficult to evaporate the condensate at the rate at which it is produced. The surface, which can have a maximum evaporation tray is limited by the dimensions of the engine room, so that by increasing the shell surface, the evaporation performance can be increased only limited. Attempts to increase the evaporation surface by arranging several shells at different levels are also only partially successful, since a large number of large flat shells in the machine room hinder the air circulation. If, however, air saturated with moisture can only leave the engine room slowly, this again slows down the evaporation. There as well additional shells can use at most that place in the engine room, which remains free between other mounted there components such as compressors, condenser, etc., a large number of complicated shaped shells is needed, which increases the manufacturing cost. It has also been proposed to make evaporation more effective by passing a tube of compressed, warm refrigerant out of the compressor through the evaporation tray. However, this approach also significantly complicates the structure of the refrigerator and thus leads to high production costs.

JP2002-350035 A offenbart einen Maschinenraum, in dem zuunterst ein Verdichter, auf dem Verdichter eine Verdunstungsschale und über der Verdunstungsschale ein Verflüssiger angeordnet sind. Seitlich von der Verdunstungsschale ist ein Ventilator angeordnet, um Luft über die Verdunstungsschale zu blasen. Der Platz unterhalb des Ventilators bleibt ungenutzt. Der Maschinenraum beansprucht daher viel Platz und würde in einem Haushaltkältegerät zu einem ungünstigem Verhältnis von Geräteabmessungen zu nutzbarem Kühlraumvolumen führen. JP2002-350035 A discloses a machine room in which at the bottom a compressor, on the compressor an evaporation tray and above the evaporation tray a condenser are arranged. At the side of the evaporation tray is a fan arranged to blow air over the evaporation tray. The space below the fan remains unused. The engine room therefore takes up a lot of space and would result in an unfavorable ratio of device dimensions to usable refrigerator volume in a domestic refrigeration appliance.

JP 2000-111235 A zeigt einen Maschinenraum eines Kühlschranks mit einem Verdichter, einer auf dem Verdichter angeordneten Verdunstungsschale und einem Ventilator, der unterhalb der Verdunstungsschale, neben dem Verdichter angeordnet ist. Der Ventilator bläst Luft in horizontaler Richtung gegen den Verdichter und gegen eine schräge Wand, die den Luftstrom nach oben ablenkt. Bevor diese Luft über die Verdunstungsschale streichen kann, wird sie an der Decke des Maschinenraums ein zweites Mal abgelenkt. Je schärfer die Richtungswechsel sind, um so schwächer ist des Anteil des vom Ventilator angetriebenen Luftstroms, der die Verdunstungsschale erreicht, und um so geringer ist die Verdunstung. Wollte man die Richtungswechsel abschwächen, indem man die schräge Wand weniger steil macht, so müsste man den Abstand zwischen Ventilator und Verdichter vergrößern, was wiederum ein einem ungünstiges Verhältnis von Geräteabmessungen zu nutzbarem Kühlraumvolumen zur Folge hätte. JP 2000-111235 A shows a machine room of a refrigerator with a compressor, arranged on the compressor evaporation tray and a fan, which is located below the evaporation tray, next to the compressor. The fan blows air in a horizontal direction against the compressor and against a sloping wall, which deflects the airflow upwards. Before this air can pass over the evaporation tray, it is deflected a second time on the ceiling of the engine room. The sharper the direction changes, the weaker is the proportion of fan-driven airflow that reaches the evaporation tray, and the lower the evaporation. Wanting to weaken the direction changes by making the sloping wall less steep, so you would have to increase the distance between the fan and compressor, which in turn would have an unfavorable ratio of equipment dimensions to usable refrigerator volume would result.

JP 11 132633 A zeigt einen Maschinenraum eines Kühlschranks, in dem ein Ventilator auf einem Verflüssiger angeordnet ist, um Kühlluft abwärts in den Verflüssiger zu blasen. Aufgabe der vorliegenden Erfindung ist, ein Kältegerät zu schaffen, bei dem in einem kompakten Maschinenraum eine effiziente Verdunstung von Kondenswasser gewährleistet werden kann. JP 11 132633 A shows a machine room of a refrigerator in which a fan is arranged on a condenser to blow cooling air down into the condenser. Object of the present invention is to provide a refrigeration device in which in a compact engine room efficient evaporation of condensation can be guaranteed.

Die Aufgabe wird gelöst durch ein Kältegerät mit den Merkmalen des Anspruchs 1. Der Ventilator sorgt somit auch bei beengten Einbauverhältnissen für einen ausreichenden Luftaustausch zwischen dem Raum oberhalb der Verdunstungsschale und der Umgebung des Kältegerätes und somit für eine schnelle Abführung des Wasserdampfes aus dem Maschinenraum. So kann eine effiziente Verdunstung trotz beengter Platzverhältnisse in einem kompakt aufgebauten Maschinenraum gewährleistet werden.The object is achieved by a refrigeration device with the features of claim 1. The fan thus ensures even in confined spaces for a sufficient exchange of air between the space above the evaporation tray and the environment of the refrigerator and thus for a quick removal of water vapor from the engine room. In this way, efficient evaporation can be ensured despite the limited space available in a compact machine room.

Ein Verflüssiger ist an dem Kühlluftweg vorzugsweise stromaufwärts vom Verdunstungsabschnitt angeordnet, so dass sich die Kühlluft auf ihrem Weg am Verflüssiger erwärmt, bevor sie den Verdunstungsabschnitt erreicht. Auf diese Weise werden die beiden wichtigsten Wärmequellen des Kältegeräts zur Förderung der Verdunstung voll ausgenutzt.A condenser is preferably located in the cooling air path upstream of the evaporation section so that the cooling air heats up on its way to the condenser before reaching the evaporation section. In this way, the two main heat sources of the refrigerator are fully exploited to promote evaporation.

Vorzugsweise ist der Ventilator auf dem Verflüssiger montiert.Preferably, the fan is mounted on the condenser.

Um einen einfachen Einbau des Ventilators und des Verflüssigers im Maschinenraum zu ermöglichen und gleichzeitig die Höhe des Maschinenraums möglichst gering halten zu können, ist es zweckmäßig, wenn der Ventilator und der Verflüssiger eine Baueinheit bilden, die in zusammengebautem Zustand in den Maschinenraum einfügbar ist.In order to allow easy installation of the fan and the condenser in the engine room and at the same time to keep the height of the engine room as low as possible, it is expedient if the fan and the condenser form a structural unit which can be inserted in the machine room in the assembled state.

Eine Ansaugöffnung für die Kühlluft ist vorzugweise an einer Unterseite des Verflüssigers gebildet.A suction opening for the cooling air is preferably formed on an underside of the condenser.

Eine Auslassöffnung des Ventilators befindet sich vorzugsweise in Höhe der Verdunstungsschale, so dass ein wesentlicher Teil der vom Ventilator ausgeblasenen Luft über dem Wasserspiegel der Verdunstungsschale herstreicht, auch wenn der Kühlluftweg zwischen dem Ventilator und der Verdunstungsschale nicht ringsum geschlossen ist.An outlet opening of the fan is preferably located at the level of the evaporation tray, so that a substantial portion of the air blown out by the fan sweeps over the water level of the evaporation tray, even if the cooling air path between the fan and the evaporation tray is not closed all around.

Um die Luft über die gesamte Verdunstungsschale hinweg gleichmäßig zu führen, ist es zweckmäßig, wenn eine Wand den Verdunstungsabschnitt zu einer Rückseite des Kältegerätes hin begrenzt. Eine solche Wand kann insbesondere einteilig mit der Verdunstungsschale ausgebildet sein.In order to guide the air over the entire evaporation tray evenly, it is expedient if a wall, the evaporation section to a back of the Refrigerating device limited. Such a wall may in particular be formed integrally with the evaporation tray.

Weitere Merkmale und Vorteile der Erfindung werden deutlich anhand der nachfolgenden Beschreibung von Ausführungsbeispielen unter Bezugnahme auf die beigefügten Figuren.Further features and advantages of the invention will become apparent from the following description of embodiments with reference to the accompanying figures.

Es zeigen:

Fig. 1
eine schematische partielle Ansicht von hinten des Gehäuses eines erfindungsgemäßes Haushaltkältegerätes;
Fig. 2
einen partiellen Schnitt durch das Gehäuse des Kältegerätes in einer zu der Rückseite parallelen Ebene;
Fig. 3
einen partiellen Schnitt durch das Gehäuse in einer zu der Rückseite senkrechten, vertikalen Ebene;
Fig. 4
eine zu Fig. 2 analoge Ansicht gemäß eine weiteren Ausgestaltung; und
Fig. 5
eine zu Fig. 1 analoge Ansicht gemäß einer anderen Ausgestaltung.
Show it:
Fig. 1
a schematic partial view from the rear of the housing of a domestic refrigerator according to the invention;
Fig. 2
a partial section through the housing of the refrigerator in a plane parallel to the back plane;
Fig. 3
a partial section through the housing in a vertical vertical plane to the back;
Fig. 4
one too Fig. 2 analogous view according to another embodiment; and
Fig. 5
one too Fig. 1 analogous view according to another embodiment.

Fig. 1 zeigt eine Draufsicht auf die Rückseite des Korpus 1 eines erfindungsgemäßen Haushaltskältegerätes. An einer nicht sichtbaren Vorderseite des Korpus 1 ist in fachüblicher Weise eine hier nicht gezeigte Tür angelenkt, die zusammen mit dem Korpus 1 eine Lagerkammer für Kühlgut begrenzt. An der Rückseite des Korpus 1 ist in Bodennähe in ebenfalls an sich bekannter Weise ein Maschinenraum 2 ausgespart, in dem auf sich in Bodennähe erstreckenden horizontalen Trägerschienen 3 ein Verdichter 4 sowie in eine Baugruppe 5 montiert ist. Die Baugruppe 5 enthält, wie in Fig. 2 zu sehen, in einem rohrartigen, oben und unten offenen Gehäuse 8 einen Verflüssiger 6 und einen Ventilator 7. Der Verflüssiger 6 und der Ventilator 7 sind von unten bzw. oben in das Gehäuse 8 eingefügt, und die auf diese Weise vormontierte Baugruppe ist in den Maschinenraum 2 über dessen offene Rückseite eingeschoben. Der Ventilator 7 ist mit vertikaler Achse angeordnet, um einen gegen die Decke des Maschinenraums gerichteten Luftstrom durch das Gehäuse 8 anzutreiben. Eine Ausblasöffnung 9 am oberen Ende des Gehäuses 8 kann zur Rückseite des Korpus 1 hin durch eine in Fig. 1 gestrichelt dargestellte Deckplatte 10 abgeschirmt sein, um die vom Ventilator 7 durch den Verflüssiger 6 hindurch angesaugte Kühlluft seitwärts, in Richtung einer Verdunstungsschale 11, abzulenken. Fig. 1 shows a plan view of the back of the body 1 of a household refrigerator according to the invention. On a non-visible front of the body 1, a door, not shown here is articulated in the usual way, which limits together with the body 1 a storage chamber for refrigerated goods. At the back of the body 1 is in Close to the ground in a manner known per se, a machine room 2, in which a compressor 4 and in an assembly 5 is mounted on extending near the bottom horizontal support rails 3. The assembly 5 contains, as in Fig. 2 to see, in a tubular, top and bottom open housing 8 a condenser 6 and a fan 7. The condenser 6 and the fan 7 are inserted from below or above in the housing 8, and the pre-assembled in this way assembly is in the Engine room 2 inserted over the open back. The fan 7 is arranged with a vertical axis to drive a directed against the ceiling of the engine room air flow through the housing 8. An exhaust opening 9 at the upper end of the housing 8 may be to the back of the body 1 through a in Fig. 1 dashed cover plate 10 may be shielded to deflect the fan 7 sucked through the condenser 6 through cooling air sideways, in the direction of an evaporation tray 11.

Die Verdunstungsschale 11 ist auf dem Verdichter 4 in unmittelbarem wärmeleitendem Kontakt mit diesem montiert. Ein oberer Rand 12 der Verdunstungsschale 11 liegt an einer der Baugruppe 5 zugewandten Seite der Verdunstungsschale 11 und an deren entgegengesetzter Seite jeweils in etwa in Höhe der Ausblasöffnung 9, um den Strom der Kühlluft von der Ausblasöffnung 9 in einen Verdunstungsabschnitt 13, der nach unten durch den Spiegel des Wassers 14 in der Verdunstungsschale 11 und nach oben durch die Decke 15 des Maschinenraums 2 begrenzt ist, nicht zu beeinträchtigen. Wie insbesondere in Fig. 3 zu erkennen, erstreckt sich eine zur Rückwand des Korpus 1 benachbarte Seitenwand 16 der Verdunstungsschale 11 bis knapp unter die Decke 15, um den Strom der Luft im Verdunstungsabschnitt 13 verlustarm zu führen.The evaporation tray 11 is mounted on the compressor 4 in direct heat-conducting contact therewith. An upper edge 12 of the evaporation tray 11 is located on one of the assembly 5 facing side of the evaporation tray 11 and at the opposite side each approximately at the level of the exhaust opening 9 to the flow of cooling air from the exhaust opening 9 in an evaporation section 13, the down through the level of the water 14 is limited in the evaporation tray 11 and up through the ceiling 15 of the engine room 2, not to be affected. As in particular in Fig. 3 can be seen, extending to the rear wall of the body 1 adjacent side wall 16 of the evaporation tray 11 to just below the ceiling 15 to carry the flow of air in the evaporation section 13 loss.

Wie in Fig. 2 und 3 gezeigt, kann die Decke 15 oberhalb der Verdunstungsschale 11 einen abwärtsgerichteten Vorsprung 17 aufweisen, um die Strömungsgeschwindigkeit der Luft über dem Wasserspiegel zu erhöhen und so die Verdunstung zu effektiveren.As in Fig. 2 and 3 shown, the ceiling 15 above the evaporation tray 11 may have a downward projection 17 in order to increase the flow velocity of the air above the water level and thus to more effective evaporation.

Der Querschnitt der Fig. 3 zeigt einen Teil der Lagerkammer 18 des Kältegerätes und eines an der Rückwand dieser Lagerkammer 18 angeordneten Verdampfers 19. Eine am Fuß des Verdampfers ausgeformte Kondenswasserauffangrinne 20 ist über ein Ablaufrohr 21 mit der Verdunstungsschale 11 verbunden.The cross section of the Fig. 3 shows a portion of the storage chamber 18 of the refrigerator and arranged on the rear wall of this storage chamber 18 evaporator 19. A formed at the bottom of the evaporator condensate collecting channel 20 is connected via a drain pipe 21 to the evaporation tray 11.

Nachdem die Kühlluft den Verdunstungsabschnitt 13 durchlaufen und in der Darstellung der Fig. 1 und 2 einen linken Rand des Maschinenraums 2 erreicht hat, verlässt sie diesen über dessen offene Rückseite und steigt zwischen der Rückwand der Lagerkammer 18 und einer dieser gegenüberliegenden Gebäudewand 22 (siehe Fig. 3) auf, um sich in der Umgebung des Kältegerätes zu verteilen.After the cooling air through the evaporation section 13 and in the representation of Fig. 1 and 2 has reached a left edge of the machine room 2, it leaves this on the open rear side and rises between the rear wall of the storage chamber 18 and one of these opposite building wall 22 (see Fig. 3 ) to distribute in the environment of the refrigerator.

Bei dem in Fig. 1 und 2 dargestellten Aufbau ist der Verdichter 4 durch die vom Ventilator 7 angetriebene Kühlluft nicht direkt gekühlt. Es besteht lediglich eine mittelbare Kühlwirkung, indem der Luftstrom des Ventilators das Wasser 14 kühlt und dieses somit mehr Wärme vom Verdichter aufnehmen kann. An den Seitenwänden des Verdichters 4 erwärmte Luft kann allenfalls in den Spalt 23 zwischen Rückwand und Gebäudewand 22 aufsteigen und wird dort vom Kühlluftstrom mitgespült. Bei der in Fig. 4 gezeigten Abwandlung ist zwischen dem Gehäuse 8 der Baugruppe 5 und der Verdunstungsschale 11 ein Spalt 24 freigehalten, durch den ein Teil der vom Ventilator 7 ausgestoßenen Luft den Verdunstungsabschnitt 13 umgehen kann und stattdessen die Seitenwände des Verdichters 4 umströmt. Die Verteilung der Luft zwischen dem Spalt 24 und dem Verdunstungsabschnitt 13 kann über deren freie Querschnitte, die Höhe des dem Ventilator 7 zugewandten Randes 12 der Verdunstungsschale 11 etc. entsprechend dem Bedarf des Verdichters 4 nach direkter Kühlung festgelegt werden.At the in Fig. 1 and 2 As shown, the compressor 4 is not directly cooled by the cooling air driven by the fan 7. There is only an indirect cooling effect in that the air flow of the fan cools the water 14 and thus can absorb more heat from the compressor. At the side walls of the compressor 4 heated air can ascend at best in the gap 23 between the rear wall and building wall 22 and is co-flushed there by the cooling air flow. At the in Fig. 4 As shown, between the housing 8 of the assembly 5 and the evaporation tray 11 a gap 24 is kept free, through which a part of the air expelled from the fan 7 can bypass the evaporation section 13 and instead flows around the side walls of the compressor 4. The distribution of the air between the gap 24 and the evaporation section 13 can be determined by their free cross sections, the height of the fan 7 facing edge 12 of the evaporation tray 11, etc. according to the needs of the compressor 4 for direct cooling.

Fig. 5 zeigt in einer zu Fig. 1 analogen Ansicht eine dritte Ausgestaltung des erfindungsgemäßen Kältegerätes. Der Maschinenraum 2 ist bei dieser Ausgestaltung nach hinten durch eine vertikale Platte vollständig verschlossen, die allerdings nicht dargestellt ist, um die Komponenten im Innern des Maschinenraums 2 zeigen zu können. Der Ventilator 7 der Baugruppe 5 saugt Kühlluft über einen sich unter der Lagerkammer bis zur Vorderseite des Korpus 1 erstreckenden Kanal 25 an und treibt diese durch den Verdunstungsabschnitt 13 bis zu der der Baugruppe 5 entgegengesetzten Seite des Maschinenraums 2. Dort wird die Kühlluft nach unten abgelenkt und umströmt die Seitenwände des Verdichters 4 auf ihrem Weg zu einem zweiten sich unter der Lagerkammer 18 zur Vorderseite des Korpus 1 erstreckenden Kanal 26. Da sich die am Verflüssiger 6 erwärmte Luft durch Aufnahme von Wasser im Verdunstungsabschnitt 13 abkühlt, kann sie auch den Verdichter 4 noch kühlen. Da sich der Verdichter 4 im Betrieb ähnlich wie der Verflüssiger 6 erwärmt, ist mit Schwitzwasserbildung am Verdichter 4 oder im Kanal 26 nicht zu rechnen. Fig. 5 shows in one too Fig. 1 analog view of a third embodiment of the refrigerator according to the invention. The engine room 2 is completely closed in this embodiment to the rear by a vertical plate, which is not shown, however, to show the components inside the engine room 2 can. The fan 7 of the assembly 5 sucks in cooling air via a channel 25 extending under the bearing chamber to the front of the body 1 and drives it through the evaporation section 13 to the side of the engine room 2 opposite the assembly 5. There, the cooling air is deflected downwards and flows around the side walls of the compressor 4 on its way to a second below the storage chamber 18 to the front of the body 1 extending channel 26. Since the heated air at the condenser 6 by absorbing water in the evaporation section 13 cools, it can also the compressor 4th still cool. Since the compressor 4 heats up in operation similar to the condenser 6, condensation on the compressor 4 or in the channel 26 can not be expected.

Claims (8)

  1. Refrigeration device, in particular domestic refrigeration device, having a machine space (2), which contains at least a compressor (4), an evaporation dish (11) mounted on the compressor (4) and a ventilator (7) for driving a flow of cooling air on a cooling air path which runs through the machine space (2), wherein the cooling air path comprises an evaporation section (13) which extends over the evaporation dish (11) and via which at least one part of the cooling air flow is guided, the ventilator is arranged upstream of the evaporation section (13), characterised in that the ventilator (7) is an axial ventilator with a vertically arranged rotor axis in order to drive an air flow directed against a ceiling (15) of the machine space (2).
  2. Refrigeration device according to one of the preceding claims, characterised in that a condenser (6) is arranged on the cooling air path upstream of the evaporation section (13).
  3. Refrigeration device according to one of the preceding claims, characterised in that the ventilator (7) is mounted on a condenser (6).
  4. Refrigeration device according to claim 2 or 3, characterised in that the ventilator (7) and the condenser (6) form a structural unit (5) which can be inserted into the machine space (2) in an assembled state.
  5. Refrigeration device according to one of claims 2 to 4, characterised in that an intake opening for the cooling air is formed on an underside of the condenser (6).
  6. Refrigeration device according to one of the preceding claims, characterised in that an outlet opening (9) of the ventilator (7) is arranged at the height of the evaporation dish (11).
  7. Refrigeration device according to one of the preceding claims, characterised in that a wall (16) delimits the evaporation section (13) to a rear side of the refrigeration device.
  8. Refrigeration device according to claim 7, characterised in that the wall (16) is embodied in one piece with the evaporation dish (11).
EP12715033.2A 2011-04-14 2012-04-04 Refrigeration appliance comprising an evaporation dish Not-in-force EP2697578B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110007412 DE102011007412A1 (en) 2011-04-14 2011-04-14 Refrigeration unit with evaporation tray
PCT/EP2012/056174 WO2012139952A1 (en) 2011-04-14 2012-04-04 Refrigeration appliance having an evaporation shell

Publications (2)

Publication Number Publication Date
EP2697578A1 EP2697578A1 (en) 2014-02-19
EP2697578B1 true EP2697578B1 (en) 2016-08-24

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EP12715033.2A Not-in-force EP2697578B1 (en) 2011-04-14 2012-04-04 Refrigeration appliance comprising an evaporation dish

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EP (1) EP2697578B1 (en)
CN (1) CN103649657B (en)
DE (1) DE102011007412A1 (en)
RU (1) RU2013146224A (en)
WO (1) WO2012139952A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6230294B2 (en) * 2013-06-25 2017-11-15 東芝ライフスタイル株式会社 refrigerator
JP6448919B2 (en) * 2014-05-30 2019-01-09 東芝ライフスタイル株式会社 refrigerator
CN107024067B (en) * 2017-05-31 2019-09-13 长虹美菱股份有限公司 A kind of heat dissipation wind channel system
JP2020070953A (en) * 2018-10-30 2020-05-07 日本電産株式会社 Cooling system
JP7369434B2 (en) * 2019-09-11 2023-10-26 アクア株式会社 refrigerator
DE102020205750A1 (en) 2020-05-07 2021-11-11 BSH Hausgeräte GmbH Heat exchanger arrangement for a refrigeration device and refrigeration device

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Publication number Priority date Publication date Assignee Title
JPH11132633A (en) * 1997-10-24 1999-05-21 Sharp Corp Electric refrigerator
JP3757643B2 (en) * 1998-10-02 2006-03-22 株式会社日立製作所 refrigerator
JP4197562B2 (en) * 1999-07-13 2008-12-17 中野冷機株式会社 Drain evaporation structure of showcase with built-in refrigerator
JP4428498B2 (en) * 2001-05-25 2010-03-10 ホシザキ電機株式会社 Evaporative exhaust structure of defrost water in storage
JP2006138609A (en) * 2004-11-15 2006-06-01 Toshiba Corp refrigerator
JP4697970B2 (en) * 2006-04-20 2011-06-08 福島工業株式会社 Rice cooler
CN201262505Y (en) * 2008-03-24 2009-06-24 海信科龙电器股份有限公司 An automatic evaporation condensate device
CN201363986Y (en) * 2009-01-16 2009-12-16 陈善荣 Wine storage cabinet
CN201748738U (en) * 2010-07-15 2011-02-16 青岛澳柯玛股份有限公司 Condensed water evaporation device of refrigerating box

Also Published As

Publication number Publication date
RU2013146224A (en) 2015-05-20
CN103649657A (en) 2014-03-19
DE102011007412A1 (en) 2012-10-18
EP2697578A1 (en) 2014-02-19
CN103649657B (en) 2015-12-23
WO2012139952A1 (en) 2012-10-18

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