EP1228338A1 - Refrigeration device, such as a refrigerator, a refrigerator/freezer combination or the like - Google Patents

Refrigeration device, such as a refrigerator, a refrigerator/freezer combination or the like

Info

Publication number
EP1228338A1
EP1228338A1 EP00972752A EP00972752A EP1228338A1 EP 1228338 A1 EP1228338 A1 EP 1228338A1 EP 00972752 A EP00972752 A EP 00972752A EP 00972752 A EP00972752 A EP 00972752A EP 1228338 A1 EP1228338 A1 EP 1228338A1
Authority
EP
European Patent Office
Prior art keywords
suction element
condenser
heat
collecting container
receiving space
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00972752A
Other languages
German (de)
French (fr)
Other versions
EP1228338B1 (en
Inventor
Wolfgang Nuiding
Hans-Frieder Eberhardt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to SI200030447T priority Critical patent/SI1228338T1/en
Publication of EP1228338A1 publication Critical patent/EP1228338A1/en
Application granted granted Critical
Publication of EP1228338B1 publication Critical patent/EP1228338B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14—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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • 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
    • F25D2321/141—Removal by evaporation
    • F25D2321/1412—Removal by evaporation using condenser heat or heat of desuperheaters
    • 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
    • F25D2321/147—Collecting condense or defrost water; Removing condense or defrost water characterised by capillary, wick, adsorbent, or evaporation elements

Definitions

  • Refrigeration device such as a refrigerator, a fridge-freezer or the like
  • the invention relates to a cold appliance, such as a refrigerator, a fridge-freezer combination or the like, with a heat-insulating housing having at least one door and at least one heat exchanger serving as a condenser, and a collecting container for introducing melt water which occurs during the defrosting operation of the cold appliance
  • a suction element formed at least from largely absorbent, hydrophilic material protrudes into the receiving space of the receptacle and is at least partially exposed to heat from the condenser
  • the suction element is flexible, In terms of production technology, this can be easily brought up at least in the vicinity of the heat-dissipating surface of a condenser, such as, for example, a flat, flat or even a wound condenser, to increase the evaporation performance.
  • the suction element also increases the evaporation surface for the melt water, which results in an additional increase the evaporation rate results
  • the evaporation performance is particularly favorably influenced if, according to a preferred embodiment of the object of the invention, it is provided that the suction element is brought into heat-conducting contact with the condenser at least in sections.
  • the suction element is brought into heat-conducting contact with the condenser at least in sections.
  • the suction element with its end projecting into the receiving space of the collecting container is arranged at a minimum distance above the bottom of the collecting container
  • the suction element has an areal extension, with one side edge of the area protruding into the receiving space of the collecting container.
  • the flat design of the suction element results in increased suction power due to the surface side edge available as the suction edge.
  • the flat design of the suction element results in a significant enlargement of the evaporation surface serving to increase the evaporation performance, which can be coupled to the condenser particularly intensively with a flat, heat-conducting contact to the condenser with regard to highly efficient melt water evaporation.
  • the flat suction element is particularly simple if, according to a next advantageous embodiment of the object of the invention, it is provided that the suction element is rectangular and projects with one of its narrower rectangular side edges into the receiving space of the collecting container.
  • the rectangular design of the suction element enables a condensate collecting container that is optimized with regard to reduced length dimensions without adversely affecting the suction and evaporation effect of the suction element, since with the rectangular design of the suction element, in particular in cooperation with a planar evaporator, there is the possibility of its overall height at least partially for to use a heat transfer to the suction element.
  • a suction element is particularly advantageous if, according to a next advantageous embodiment of the object of the invention, it is provided that the suction element is at least largely formed from cellulose material.
  • a particularly simple and efficient use for a suction element results in a refrigeration device if, according to a further preferred embodiment of the object of the invention, it is provided that the refrigeration device is equipped with a flat condenser on the back of the device opposite the door and below it a machine room with a Has a refrigerant compressor and a condensate collecting tray serving as a collecting container, into which the suction element, which is at least approximately in heat-conducting contact with the condenser, projects with a minimum distance from the bottom of the tray.
  • the suction element can be attached to the refrigeration device in a particularly production-friendly and thus inexpensive manner, and at the same time with particularly favorable heat transfer from the condenser to the suction element.
  • the suction element has a flat side edge, the length of which is at least essentially matched to the larger dimension of the condensate collecting pan.
  • the suction element can be replaced particularly easily in the event of a decrease in suction power or mold contamination if, according to a last preferred embodiment of the object of the invention, it is provided that the suction element is detachably fixed in at least largely heat-conducting contact on the condenser.
  • a section of a cold appliance designed as a table-top refrigerator 10 with a warm-insulating housing 11 is shown, in sections, in a simplified illustration.
  • a machine room 13 On its rear end 12, on its lower end section, a machine room 13 is recessed with respect to the rear side 12, within which a refrigerant compressor 14 is fixed on a support rail 15 extending across the width of the machine room 13.
  • the refrigerant compressor 14 carries, at its upper end section opposite the support rail 15, a condensate collecting tray 16, for example molded in one piece from plastic, into which the melt water accumulating during the defrosting operation of the table refrigerator 10 is introduced
  • Thawing water collecting tray 16 has a bottom wall 17 and a side wall 18 arranged circumferentially on its edges, which together with the bottom wall 17 delimits a thawing water receiving space 19
  • a flat condenser 20 is provided on the rear side 12, which is provided in the present case as a so-called wire condenser with a meandering pipeline 21 and wire rods 22 arranged to cross it.
  • One of the horizontal sections of the pipeline 21 has a flat, in the form of a rectangle in DIN A-4 size, made of absorbent, hydrophilic material, for example based on cellulose 22 formed heat exchange surface of the condenser 20 on.
  • the rectangular suction element 23 extends with its end section 24 facing the compressor 14 into the condensate receiving space 19, the end section 24 with its side edge 25 forming the free end at a distance above the floor wall manure 17 is arranged, so that the condensate receiving space 19 must always be filled with a certain amount of mildew water in order to be able to wet the suction element 23.
  • the length of the side edge 25 is matched to the length of the longer shell side of the condensate collecting pan 16, so that the suction element 23 over the Entire length of the condensate drip tray 16 is able to absorb melt water if the melt water level within the condensate holding space 19 has exceeded a minimum height reaching to the side edge 25.
  • the melt water is capillaryly passed on via the end section 24 to the section of the suction element 23 which is in direct thermal contact with the condenser.
  • the melt water is evaporated by the heat of the condenser 20 on the suction element 23 on its surface.
  • Suction elements with basis weights of 150 g / m 2 or 220 g / m 2 or 330 g / m 2 with components made of wood pulp, cellulose short cut fibers, polyester fibers and melt fibers have already given good results with regard to a significant increase in the evaporation capacity for the melt water.
  • an impregnation of the suction element to avoid mold formation has proven to be favorable.

Abstract

The invention relates to a refrigeration device (10) with an heat-insulating housing (11) that has at least one door and with a heat exchanger that is used as a condenser (20). The refrigeration device further comprises a collecting container (16) that collects the melt water produced in the defrost operation of the refrigeration device. The problem one is often faced with in such refrigeration devices is that the running times of the refrigerant compressor (14) are substantially reduced owing to the highly efficient heat insulation so that the evaporation of the melt water favored by the heat dissipated by the compressor (14) is reduced to such an extent that it cannot be excluded that the water in the collecting container will spill over. According to the invention, this problem is solved by removing the melt water from the container (16) to a certain minimum level by means of an absorbent, hydrophilic material (23), said absorbing material (23) being exposed to the heat dissipated by the condenser (20) to accelerate the evaporation rate of the absorbed melt water.

Description

Kältegerät wie ein Kühlschrank, eine Kühl- und Gefrierkombination oder dergleichen Refrigeration device such as a refrigerator, a fridge-freezer or the like
Die Erfindung betrifft ein Kaltegerat, wie einen Kühlschrank, eine Kühl- und Gefrier- kombination oder dergleichen, mit einem wenigstens eine Tur aufweisenden war- meisolierenden Gehäuse und wenigstens einem als Verflussiger dienenden Wärmetauscher sowie einem Auffangbehaltnis zur Einleitung von wahrend des Abtaubetriebes des Kaltegerates anfallenden SchmelzwassersThe invention relates to a cold appliance, such as a refrigerator, a fridge-freezer combination or the like, with a heat-insulating housing having at least one door and at least one heat exchanger serving as a condenser, and a collecting container for introducing melt water which occurs during the defrosting operation of the cold appliance
Bei Kaltegeraten ist es bekannt, das wahrend der Abtauphase ihres Verdampfers anfallende Schmelzwasser in eine als Auffangbehaltnis dienende Tauwasserauf- fangschale einzuleiten Die Tauwasserauffangschale ist dabei zur Erhöhung der Verdunstungsleistung mit der Abwarme des Kaltemittelverdichters eines Kaltegerates beaufschlagt Die Beaufschlagung der Tauwasserauffangschale mit der Abwarme des Kaltemittelverdichters ist dabei entweder durch ein unmittelbares An- bringen der Tauwasserauffangschale am Verdichtergehause oder durch eine Anordnung der Tauwasserauffangschale in unmittelbarer Nachbarschaft zum Kalte- mittelverdichter bewerkstelligt Trotz dieses an sich relativ intensiven Warmeeinflus- ses auf das Schmelzwasser in der Tauwasserauffangschale kann es vorkommen daß das Auffangvolumen der Tauwasserauffangschale nicht ausreichend ist und das Schmelzwasser überlauft Dies kommt daher, daß einerseits die Oberflachentemperaturen der auf Energieeinsparung getrimmten Verdichter deutlich reduziert sind und andererseits dadurch, daß durch die hocheffiziente Warmeisolation der Kaltegerate eine deutlich geringere Laufzeit der Kaltemittelverdichter notwendig ist wodurch die Wärmeabgabe der Verdichter deutlich eingeschränkt ist Darüber hin- aus kommt hinzu, daß durch zyklisch stattfindende Abtauvorgange größere Mengen von Schmelzwasser anfallen, welches dann aufgrund der verminderten Wärmeabgabe der Verdichter nur sehr langsam verdunstet Der Erfindung hegt die Aufgabe zugrunde, bei einem Kaltegerat gemäß dem Oberbegriff des Anspruches 1 mit einfachen konstruktiven Maßnahmen die Verdunstung des Schmelzwassers zu fordernIn the case of cold devices, it is known to introduce the melt water which arises during the defrosting phase of their evaporator into a condensation water collecting tray which serves as a collecting container either by directly attaching the condensate drip tray to the compressor housing or by arranging the condensate drip tray in the immediate vicinity of the refrigerant compressor. Despite this relatively intense heat effect on the melt water in the condensate drip tray, it may happen that the collection volume of the condensate drip tray is insufficient and the melt water overflows. This is because, on the one hand, the surface temperatures of the compressors, which are designed to save energy, are clear are reduced and, on the other hand, due to the fact that the highly efficient heat insulation of the refrigeration units means that the refrigerant compressors have a significantly shorter runtime, which means that the heat dissipation of the compressors is significantly restricted. In addition, cyclical defrosting processes result in larger amounts of melt water, which is then due to the reduced heat emission of the compressors evaporates very slowly The invention has for its object to require the evaporation of the melt water in a cold device according to the preamble of claim 1 with simple design measures
Diese Aufgabe wird gemäß der Erfindung dadurch gelost, daß in den Aufnahmeraum des Auffangbehaltnisses ein zumindest aus weitestgehend saugfahigem, hydrophilem Werkstoff gebildetes Saugelement ragt, welches zumindest abschnittsweise von der Wärmeabgabe des Verflussigers beaufschlagt istThis object is achieved according to the invention in that a suction element formed at least from largely absorbent, hydrophilic material protrudes into the receiving space of the receptacle and is at least partially exposed to heat from the condenser
Durch das Absaugen von Schmelzwasser aus dem Auffangbehaltnis ist nicht nur dessen Uberfullung und somit ein Schmelzwasseruberlauf vermieden, sondern zugleich energieneutral, nämlich ohne Einsatz zusätzlicher Heizmittel durch Nutzung der Verflussigerabwarme die Verdunstungsleistung bezüglich des Schmelzwassers gesteigert Für den Fall, daß das Saugelement flexibel ausgebildet ist, laßt sich dieses fertigungstechnisch problemlos zumindest in den Nahbereich der war- meabgebenden Oberflache eines Verflussigers, wie beispielsweise eines flachenhaften, ebenflachigen oder aber auch eines gewickelten Verflussigers zur Steigerung der Verdunstungsleistung heranfuhren Durch das Saugelement ist außerdem die Verdunstungsoberflache für das Schmelzwasser vergrößert, woraus sich eine zusätzliche Steigerung der Verdunstungsleistung ergibtSucking away melt water from the collecting container not only avoids overfilling and thus melt water overflow, but also energy-neutral, namely without the use of additional heating means by using the condenser waste heat, the evaporation performance with regard to the melt water is increased In the event that the suction element is flexible, In terms of production technology, this can be easily brought up at least in the vicinity of the heat-dissipating surface of a condenser, such as, for example, a flat, flat or even a wound condenser, to increase the evaporation performance. The suction element also increases the evaporation surface for the melt water, which results in an additional increase the evaporation rate results
Besonders gunstig beeinflußt ist die Verdunstungsleistung, wenn nach einer bevorzugten Ausfuhrungsform des Gegenstandes der Erfindung vorgesehen ist, daß das Saugelement zumindest abschnittsweise in wärmeleitenden Kontakt mit dem Verflussiger gebracht ist Durch die unmittelbare wärmeleitende Kontaktierung ist nicht nur der Weg der Strahlungswarme verkürzt, sondern zugleich ein im Hinblick auf die Erhöhung der Verdunstungsleistung optimaler Wärmeübergang zwischen dem Verflussiger und dem Saugelement geschaffenThe evaporation performance is particularly favorably influenced if, according to a preferred embodiment of the object of the invention, it is provided that the suction element is brought into heat-conducting contact with the condenser at least in sections.Thanks to the direct heat-conducting contact, not only is the path of the radiant heat shortened, but also at the same time With regard to increasing the evaporation performance, optimal heat transfer between the condenser and the suction element is created
Nach einer weiteren bevorzugten Ausfuhrungsform des Gegenstandes der Erfindung ist vorgesehen, daß das Saugelement mit seinem in den Aufnahmeraum des Auffangbehaltnisses ragenden Ende mit einem Mindestabstand über dem Boden des Auffangbehaltnisses angeordnet ist Eine derartige Zuordnung des Saugelementes zum Aufnahmeraum des Auffangbehaltnisses stellt sicher, daß das Saugelement als eine Art Überlaufsicherung für das Auffangbehaltnis dient und bei einem Schmelzwasserspiegel unterhalb dem in den Aufnahmeraum ragenden Ende eine vollständige Austrocknung des Saugelementes gewährleistet ist. Hierdurch ist ein mögliches Bakterienwachstum zumindest deutlich eingeschränkt, wenn nicht ganz und gar vermieden ist.According to a further preferred embodiment of the object of the invention, it is provided that the suction element with its end projecting into the receiving space of the collecting container is arranged at a minimum distance above the bottom of the collecting container Such an assignment of the suction element to the receiving space of the collecting container ensures that the suction element serves as a kind of overflow protection for the collecting container and that a complete drying out of the suction element is ensured in the case of a melt water level below the end projecting into the receiving space. As a result, possible bacterial growth is at least significantly restricted, if not completely avoided.
Entsprechend einer nächsten bevorzugten Ausführungsform des Gegenstandes der Erfindung ist vorgesehen, daß das Saugelement eine flächenhafte Ausdehnung aufweist, wobei eine Seitenkante der Fläche in den Aufnahmeraum des Auffangbehaltnisses ragt.According to a next preferred embodiment of the object of the invention, it is provided that the suction element has an areal extension, with one side edge of the area protruding into the receiving space of the collecting container.
Durch die flächige Gestaltung des Saugelements ergibt sich für dieses aufgrund der als Saugkante zur Verfügung stehenden Flächenseitenkante eine erhöhte Saug- leistung. Gleichzeitig ergibt die flächige Gestaltung des Saugelements eine deutliche Vergrößerung der zur Steigerung der Verdunstungsleistung dienenden Verdunstungsoberfläche, welche bei einer flächigen, wärmeleitenden Kontaktierung zum Verflüssiger besonders intensiv im Hinblick auf eine hocheffiziente Schmel- wasserverdunstung an den Verflüssiger ankoppelbar ist.The flat design of the suction element results in increased suction power due to the surface side edge available as the suction edge. At the same time, the flat design of the suction element results in a significant enlargement of the evaporation surface serving to increase the evaporation performance, which can be coupled to the condenser particularly intensively with a flat, heat-conducting contact to the condenser with regard to highly efficient melt water evaporation.
Besonders einfach ausgebildet ist das flächenhafte Saugelement, wenn nach einer nächsten vorteilhaften Ausgestaltung des Gegenstandes der Erfindung vorgesehen ist, daß das Saugelement rechteckförmig ausgebildet ist und mit einer seiner schmäleren Rechteckseitenkanten in den Aufnahmeraum des Auffangbehaltnisses ragt. Die rechteckförmige Ausbildung des Saugelementes ermöglicht ein im Hinblick auf verringerte Längenabmessungen optimiertes Tauwasserauffangbehäitnis ohne dabei die Saug- und Verdunstungswirkung des Saugeiementes ungünstig zu beeinflussen, da mit der rechteckförmigen Ausbildung des Saugelementes insbesondere im Zusammenwirken mit einem flächenhaften Verdampfer die Möglichkeit besteht, dessen Bauhöhe zumindest teilweise für einen Wärmeübergang auf das Saugelement zu nutzen.The flat suction element is particularly simple if, according to a next advantageous embodiment of the object of the invention, it is provided that the suction element is rectangular and projects with one of its narrower rectangular side edges into the receiving space of the collecting container. The rectangular design of the suction element enables a condensate collecting container that is optimized with regard to reduced length dimensions without adversely affecting the suction and evaporation effect of the suction element, since with the rectangular design of the suction element, in particular in cooperation with a planar evaporator, there is the possibility of its overall height at least partially for to use a heat transfer to the suction element.
Besonders vorteilhaft ist ein Saugelement ausgebildet, wenn nach einer nächsten vorteilhaften Ausgestaltung des Gegenstandes der Erfindung vorgesehen ist, daß das Saugelement zumindest weitestgehend aus Zellulosewerkstoff gebildet ist. Ein besonders einfacher und effizienter Einsatz für ein Saugelement ergibt sich bei einem Kältegerät, wenn nach einer weiteren bevorzugten Ausführungsform des Gegenstandes der Erfindung vorgesehen ist, daß das Kältegerät an seiner der Tür gegenüberliegenden Geräterückseite mit einem flächenhaften Verflüssiger ausgestattet ist und unterhalb diesem einen Maschinenraum mit einem Kältemittelverdichter und eine als Auffangbehaltnis dienende Tauwasserauffangschale besitzt, in welche das zumindest annähernd in wärmeleitenden Kontakt mit dem Verflüssiger gebrachte Saugelement mit einem Mindestabstand zum Schalenboden ragt. Bei ei- nem derartigen Kältegerät läßt sich das Saugelement besonders fertigungsfreundlich und somit kostengünstig bei einem gleichzeitig besonders günstigem Wärmeübergang vom Verflüssiger auf das Saugelement am Kältegerät festsetzen.A suction element is particularly advantageous if, according to a next advantageous embodiment of the object of the invention, it is provided that the suction element is at least largely formed from cellulose material. A particularly simple and efficient use for a suction element results in a refrigeration device if, according to a further preferred embodiment of the object of the invention, it is provided that the refrigeration device is equipped with a flat condenser on the back of the device opposite the door and below it a machine room with a Has a refrigerant compressor and a condensate collecting tray serving as a collecting container, into which the suction element, which is at least approximately in heat-conducting contact with the condenser, projects with a minimum distance from the bottom of the tray. With such a refrigeration device, the suction element can be attached to the refrigeration device in a particularly production-friendly and thus inexpensive manner, and at the same time with particularly favorable heat transfer from the condenser to the suction element.
Nach einer nächsten vorteilhaften Ausgestaltung des Gegenstandes der Erfindung ist vorgesehen, daß das Saugelement eine Flächenseitenkante besitzt, deren Länge zumindest im wesentlichen auf die größere Abmessung der Tauwasserauffangschale abgestimmt ist.According to a next advantageous embodiment of the object of the invention, it is provided that the suction element has a flat side edge, the length of which is at least essentially matched to the larger dimension of the condensate collecting pan.
Mit einer solchen Einbringung des Saugelements in die Tauwasserauffangschale läßt sich ein besonders effektives Saugverhalten für das Saugelement erreichen, so daß größere Mengen anfallenden Schmelzwassers verhältnismäßig kurzfristig bis zu einem vorherbestimmten Mindestwasserstandspegel aus dem Aufnahmeraum der Tauwasserauffangschale absaugbar sind.With such an introduction of the suction element into the thawing water collecting bowl, a particularly effective suction behavior for the suction element can be achieved, so that larger amounts of melt water can be sucked out from the receiving space of the thawing water collecting bowl relatively quickly up to a predetermined minimum water level.
Besonders einfach läßt sich das Saugelement im Falle eines Saugleistungsrückganges oder einer Schimmelpilzkontaminierung auswechseln, wenn nach einer letzten bevorzugten Ausführungsform des Gegenstandes der Erfindung vorgesehen ist, daß das Saugelement lösbar in zumindest weitestgehend wärmeleitendem Kontakt am Verflüssiger festgesetzt ist.The suction element can be replaced particularly easily in the event of a decrease in suction power or mold contamination if, according to a last preferred embodiment of the object of the invention, it is provided that the suction element is detachably fixed in at least largely heat-conducting contact on the condenser.
Die Erfindung ist in der nachfolgenden Beschreibung anhand eines in der beigefügten Zeichnung vereinfacht dargestellten Ausführungsbeispieles erläutert. Die einzige Figur zeigt die Ruckseite eines Tischkuhlschrankes mit an dessen Drahtrohrverflussiger festgesetzten und mit einem Ende in den Auffangraum einer Tauwasserauffangschale ragenden SaugvliesesThe invention is explained in the following description with reference to an embodiment shown in simplified form in the accompanying drawing. The only figure shows the back of a table top refrigerator with suction fleece attached to its wire tube condenser and with one end protruding into the collecting space of a condensate collecting pan
Gemäß der einzigen Figur ist, ausschnittsweise in vereinfachter Darstellung, ein als Tischkuhlschrank 10 ausgebildetes Kaltegerat mit einem warmeisoherenden Gehäuse 11 gezeigt Dieses weist an seiner Ruckseite 12, an deren unteren Endabschnitt einen bezüglich der Ruckseite 12 nischenartig zurückspringenden Maschinenraum 13 auf, innerhalb welchem ein Kaltemittelverdichter 14 auf einer über die Breite des Maschinenraumes 13 sich erstreckenden Tragschiene 15 festgesetzt ist Der Kaltemittelverdichter 14 tragt an seinem der Tragschiene 15 gegenüberliegenden oberen Endabschnitt eine beispielsweise einstuckig aus Kunststoff spπtzguß geformte Tauwasserauffangschale 16, in welche das wahrend des Abtaubetriebes des Tischkuhlschrankes 10 anfallende Schmelzwasser eingeleitet ist Die Tauwas- serauffangschale 16 besitzt eine Bodenwandung 17 und eine an deren Randern umlaufend angeordnete Seitenwandung 18, welche zusammen mit der Bodenwandung 17 einen Tauwasseraufnahmeraum 19 umgrenztAccording to the single figure, a section of a cold appliance designed as a table-top refrigerator 10 with a warm-insulating housing 11 is shown, in sections, in a simplified illustration. On its rear end 12, on its lower end section, a machine room 13 is recessed with respect to the rear side 12, within which a refrigerant compressor 14 is fixed on a support rail 15 extending across the width of the machine room 13. The refrigerant compressor 14 carries, at its upper end section opposite the support rail 15, a condensate collecting tray 16, for example molded in one piece from plastic, into which the melt water accumulating during the defrosting operation of the table refrigerator 10 is introduced Thawing water collecting tray 16 has a bottom wall 17 and a side wall 18 arranged circumferentially on its edges, which together with the bottom wall 17 delimits a thawing water receiving space 19
Im Abstand über der Tauwasserauffangschale 16 ist an der Ruckseite 12 ein fla- chenhafter Verflussiger 20 vorgesehen, welcher im vorliegenden Fall als sog Drahtrohrverflussiger mit einer maanderartig verlaufenden Rohrleitung 21 und dazu kreuzend angeordneten Drahtstaben 22 vorgesehen ist An einem der horizontalen Abschnitte der Rohrleitung 21 ist ein flachenhaftes, in Form eines Rechtecks in DIN A-4-Große ausgebildetes Saugelement 23 aus saugfahigem, hydrophilem Werk- stoff, beispielsweise auf Zellulosebasis, festgesetzt Das Saugelement 23 liegt mit seiner dem Verflussiger 20 zugewandten Rechteckflache zumindest weitestgehend in wärmeleitendem Kontakt an der durch die Drahtstabe 22 gebildeten Warme- tauschflache des Verflussigers 20 an Das rechteckförmige Saugelement 23 erstreckt sich mit seinem dem Verdichter 14 zugewandten Endabschnitt 24 bis in den Tauwasseraufnahmeraum 19, wobei der Endabschnitt 24 mit seiner das freie Ende bildenden Seitenkante 25 im Abstand über der Bodenwandung 17 angeordnet ist, wodurch der Tauwasseraufnahmeraum 19 stets mit einer gewissen Mmdesttauwas- sermenge befullt sein muß, um das Saugelement 23 benetzen zu können Die Seitenkante 25 ist hinsichtlich ihrer Lange auf die Lange der längeren Schalenseite der Tauwasserauffangschale 16 abgestimmt, wodurch das Saugelement 23 über die ganze Länge der Tauwasserauffangschale 16 Schmelzwasser aufzusaugen vermag, wenn der Schmelzwasserpegel innerhalb des Tauwasseraufnahmeraums 19 eine bis zur Seitenkante 25 reichende Mindesthöhe überschritten hat. Das beim Ü- berschreiten der Mindestpegelhöhe von der Seitenkante 25 aus dem Tauwasser- aufnahmeraum 19 durch die Kapillarwirkung des Saugelement-Werkstoffes abgesaugte Schmelzwasser wird kapillarisch über den Endabschnitt 24 an den unmittelbar in wärmeleitenden Kontakt mit dem Verflüssiger stehenden Abschnitt des Saugelements 23 weitergeleitet. In diesem Bereich des Saugelements 23 wird das Schmelzwasser durch die Wärmeeinwirkung des Verflüssigers 20 auf das Saug- element 23 an dessen Oberfläche verdunstet. Durch das Absaugen des Schmelzwassers aus dem Tauwasseraufnahmeraum 19 bis auf einen bestimmten Mindest- pegelstand ist eine Art Überlaufsicherung erzeugt, aufgrund welcher bei in großen Mengen anfallenden Schmelzwasser eine Überfüllung des Tauwasseraufnahmeraums und somit ein Überlaufen der Tauwasserauffangschale 16 vermieden ist.At a distance above the condensate drip tray 16, a flat condenser 20 is provided on the rear side 12, which is provided in the present case as a so-called wire condenser with a meandering pipeline 21 and wire rods 22 arranged to cross it. One of the horizontal sections of the pipeline 21 has a flat, in the form of a rectangle in DIN A-4 size, made of absorbent, hydrophilic material, for example based on cellulose 22 formed heat exchange surface of the condenser 20 on. The rectangular suction element 23 extends with its end section 24 facing the compressor 14 into the condensate receiving space 19, the end section 24 with its side edge 25 forming the free end at a distance above the floor wall manure 17 is arranged, so that the condensate receiving space 19 must always be filled with a certain amount of mildew water in order to be able to wet the suction element 23. The length of the side edge 25 is matched to the length of the longer shell side of the condensate collecting pan 16, so that the suction element 23 over the Entire length of the condensate drip tray 16 is able to absorb melt water if the melt water level within the condensate holding space 19 has exceeded a minimum height reaching to the side edge 25. When the minimum level is exceeded from the side edge 25 of the condensate receiving space 19 by the capillary action of the suction element material, the melt water is capillaryly passed on via the end section 24 to the section of the suction element 23 which is in direct thermal contact with the condenser. In this area of the suction element 23, the melt water is evaporated by the heat of the condenser 20 on the suction element 23 on its surface. By sucking the melt water out of the condensation water receiving space 19 to a certain minimum level, a type of overflow protection is generated, on the basis of which overflow of the condensation water receiving space 16 and thus overflow of the condensation water collecting tray 16 is avoided in the event of large amounts of melt water.
Saugelemente mit Flächengewichten von 150 g/m2 oder 220 g/m2 bzw. 330 g/m2 mit Komponenten aus Holzzellstoff, Zellulosekurzschnittfasern, Polyesterfasern sowie Schmelzfasern haben bereits gute Ergebnisse im Hinblick auf eine deutliche Steigerung der Verdunstungsleistung für das Schmelzwasser ergeben. Als günstig hat sich in diesem Zusammenhang eine Imprägnierung des Saugelementes zur Vermeidung von Schimmelpilzbildung erwiesen. Suction elements with basis weights of 150 g / m 2 or 220 g / m 2 or 330 g / m 2 with components made of wood pulp, cellulose short cut fibers, polyester fibers and melt fibers have already given good results with regard to a significant increase in the evaporation capacity for the melt water. In this context, an impregnation of the suction element to avoid mold formation has proven to be favorable.

Claims

Patentansprüche claims
Kaltegerat, wie Kühlschrank, Kühl- und Gefrierkombination oder dergleichen mit einem wenigstens eine Tur aufweisenden warmeisoherenden Gehäuse und wenigstens einem als Verflussiger dienenden Wärmetauscher sowie einem Auffangbehaltnis zur Einleitung von wahrend des Abtaubetriebes des Kaltegerates anfallenden Schmelzwassers, dadurch gekennzeichnet, daß in den Aufnahmeraum (19) des Auffangbehaltnisses (16) ein zumindest aus weitestgehend saugfahigem, hydrophilem Werkstoff gebildetes Saugelement (23) ragt, welches zumindest abschnittsweise von der Wärmeabgabe des Verflussigers (20) beaufschlagt istCold appliance, such as a refrigerator, fridge-freezer or the like, with a heat-insulating housing having at least one door and at least one heat exchanger serving as a condenser, and a collecting container for introducing melt water which occurs during the defrosting operation of the cold appliance, characterized in that in the receiving space (19) protrudes from the collecting container (16), a suction element (23) formed at least from largely absorbent, hydrophilic material, which is acted upon at least in sections by the heat given off by the condenser (20)
Kaltegerat nach Anspruch 1 , dadurch gekennzeichnet, daß das Saugelement (23) zumindest abschnittsweise in wärmeleitendem Kontakt mit dem Verflussiger (20) gebracht istCold device according to claim 1, characterized in that the suction element (23) is brought at least in sections into heat-conducting contact with the condenser (20)
Kaltegerat nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Saugelement (23) mit seinem in den Aufnahmeraum (19) des Auffangbehalt- nisses (16) ragenden Ende mit einem Mindestabstand über dem Boden (17) des Auffangbehaltnisses (16) angeordnet istCold device according to claim 1 or 2, characterized in that the suction element (23) with its end projecting into the receiving space (19) of the collecting container (16) is arranged at a minimum distance above the bottom (17) of the collecting container (16)
Kaltegerat nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Saugelement (23) eine flachenhafte Ausdehnung aufweist, wobei eine Seitenkante (25) der Flache in den Aufnahmeraum (19) des Auffangbehalt- nisses (16) mit Abstand über dessen Boden (17) ragtCold appliance according to one of claims 1 to 3, characterized in that the suction element (23) has a flat extension, a side edge (25) of the surface in the receiving space (19) of the collecting container (16) at a distance above the bottom ( 17) protrudes
Kaltegerat nach einem der Ansprüche 1 bis 4 dadurch gekennzeichnet, daß das Saugelement (23) rechteckformig ausgebildet ist und mit einer seiner schmaleren Rechteckseitenkanten (25) in den Aufnahmeraum (19) des Auf- nahmebehaltnisses (16) mit Abstand über dessen Boden (17) ragt Cold appliance according to one of claims 1 to 4, characterized in that the suction element (23) is rectangular and has one of its narrower rectangular side edges (25) in the receiving space (19) of the receiving container (16) at a distance above the bottom (17) protrudes
6. Kältegerät nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Saugelement (23) zumindest weitestgehend aus Zellulosewerkstoff gebildet ist.6. Refrigerating appliance according to one of claims 1 to 5, characterized in that the suction element (23) is at least largely formed from cellulose material.
7. Kältegerät nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Kältegerät (10) an seiner der Tür gegenüberliegenden Geräterückseite7. Refrigerating appliance according to one of claims 1 to 6, characterized in that the refrigerating appliance (10) on its rear side of the appliance opposite the door
(12) mit einem flächenhaften Verflüssiger (20) ausgestattet ist und unterhalb diesem einen Maschinenraum (13) mit einem Kaltemittelverdichter (14) und eine als Auffangbehaltnis dienende Tauwasserauffangschale (16) besitzt, in welche das zumindest annähernd in wärmeleitenden Kontakt mit dem Verflüs- siger (20) gebrachte flächenhafte Saugelement (23) mit einer seiner Seitenkanten (25) in einem Mindestabstand zum Schalenboden (17) der Tauwasserauffangschale (16) ragt.(12) is equipped with a flat condenser (20) and underneath it has a machine room (13) with a refrigerant compressor (14) and a condensate drip tray (16) serving as a collecting container, in which the at least approximately in heat-conducting contact with the condenser (20) brought planar suction element (23) with one of its side edges (25) projects at a minimum distance from the tray bottom (17) of the condensation water collecting tray (16).
8. Kältegerät nach Anspruch 7, dadurch gekennzeichnet, daß das Saugelement (23) eine Flächenseitenkante (25) besitzt, deren Länge zumindest im wesentlichen auf die größere Abmessung der Tauwasserauffangschale (16) abgestimmt ist.8. Refrigerating appliance according to claim 7, characterized in that the suction element (23) has a surface side edge (25), the length of which is at least substantially matched to the larger dimension of the condensate collecting pan (16).
9. Kältegerät nach einem der Anspruch 1 bis 8, dadurch gekennzeichnet, daß das Saugelement (23) lösbar in zumindest weitestgehend wärmeleitenden Kontakt am Verflüssiger (20) festgesetzt ist. 9. Refrigerating appliance according to one of claims 1 to 8, characterized in that the suction element (23) is detachably fixed in at least largely heat-conducting contact on the condenser (20).
EP00972752A 1999-10-27 2000-10-12 Refrigeration device, such as a refrigerator, a refrigerator/freezer combination or the like Expired - Lifetime EP1228338B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200030447T SI1228338T1 (en) 1999-10-27 2000-10-12 Refrigeration device, such as a refrigerator, a refrigerator/freezer combination or the like

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19951766 1999-10-27
DE19951766A DE19951766A1 (en) 1999-10-27 1999-10-27 Refrigeration device, such as a refrigerator, a fridge-freezer or the like
PCT/EP2000/010067 WO2001031267A1 (en) 1999-10-27 2000-10-12 Refrigeration device, such as a refrigerator, a refrigerator/freezer combination or the like

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EP1228338A1 true EP1228338A1 (en) 2002-08-07
EP1228338B1 EP1228338B1 (en) 2004-06-23

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CN (1) CN1171060C (en)
AT (1) ATE269963T1 (en)
BR (1) BR0015028A (en)
DE (2) DE19951766A1 (en)
ES (1) ES2222243T3 (en)
NZ (1) NZ518549A (en)
TR (1) TR200200743T2 (en)
WO (1) WO2001031267A1 (en)

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CN101413768B (en) * 2007-10-15 2012-12-26 开利公司 Anti-freeze protection device and method
JP5294737B2 (en) * 2008-07-09 2013-09-18 ホシザキ電機株式会社 Waste water evaporator for cooling storage
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CN1384912A (en) 2002-12-11
TR200200743T2 (en) 2002-07-22
WO2001031267A1 (en) 2001-05-03
BR0015028A (en) 2002-06-18
CN1171060C (en) 2004-10-13
ES2222243T3 (en) 2005-02-01
DE50006905D1 (en) 2004-07-29
EP1228338B1 (en) 2004-06-23
NZ518549A (en) 2003-10-31
ATE269963T1 (en) 2004-07-15
DE19951766A1 (en) 2001-05-03

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