EP0953812A2 - Refrigerating apparatus - Google Patents

Refrigerating apparatus Download PDF

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Publication number
EP0953812A2
EP0953812A2 EP99108078A EP99108078A EP0953812A2 EP 0953812 A2 EP0953812 A2 EP 0953812A2 EP 99108078 A EP99108078 A EP 99108078A EP 99108078 A EP99108078 A EP 99108078A EP 0953812 A2 EP0953812 A2 EP 0953812A2
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EP
European Patent Office
Prior art keywords
evaporator
cooling
cooling capacity
connecting web
highest
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.)
Withdrawn
Application number
EP99108078A
Other languages
German (de)
French (fr)
Other versions
EP0953812A3 (en
Inventor
Hans Dipl.-Ing. Haas
Berthold Dipl.-Ing. Pflomm
Wolfgang Dipl.-Ing. Nuiding
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP0953812A2 publication Critical patent/EP0953812A2/en
Publication of EP0953812A3 publication Critical patent/EP0953812A3/en
Withdrawn legal-status Critical Current

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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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
    • 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
    • F25B39/02—Evaporators
    • F25B39/022—Evaporators with plate-like or laminated elements
    • F25B39/024—Evaporators with plate-like or laminated elements with elements constructed in the shape of a hollow panel
    • 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
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/04—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/04—Refrigerators with a horizontal mullion

Definitions

  • the invention relates to a cooling device with a heat-insulating housing, within which has at least three cooling compartments having a different temperature are arranged, each of which is equipped with a corresponding cooling capacity Evaporators are cooled, which are connected in series by one Refrigerant compressors are supplied with refrigerant, which is on the evaporator The highest cooling capacity provided injection point is supplied to the evaporators.
  • the invention has for its object in a refrigerator in accordance with the generic term of claim 1 with simple structural measures, the disadvantages of Avoid prior art.
  • the evaporator Are part of a one-piece evaporator board, which has a connecting web which has the evaporator of the highest cooling capacity with the evaporator medium Cold power connects fluidically and which is thermally insulated on the evaporator lowest cooling capacity is passed.
  • the vaporiser system is not only inexpensive to manufacture, but also easy to assemble attachable to the refrigerated goods container of a refrigerator. Furthermore, the one-piece evaporator board not only the storage, but also the feed to the assembly lines in the cooling unit production. Due to the heat insulating Insulation of the connecting web provided for refrigerant guidance opposite The refrigeration compartment at the highest temperature is an undesirable pre-evaporation of the refrigerant avoided before it is fed to the evaporator of medium cooling capacity, so that the refrigeration efficiency of the refrigeration system of the cooling device is significantly improved is.
  • the connecting web by cropping from the level of the evaporator the lowest cooling capacity and the highest temperature compared to the refrigerator compartment is heat insulated.
  • cranking the connecting web is special in terms of production technology easy to implement way both compared to the evaporator least Refrigeration capacity as well as the highest temperature compared to the refrigerator compartment decoupled. Furthermore, the evaporator board portion of the evaporator is the smallest Cooling capacity through this measure only with regard to its heat exchange surface marginally reduced.
  • a particularly cost-effective as well as comprehensive and comprehensive Decoupling the connecting web from the evaporator with the lowest cooling capacity and from the refrigerator compartment highest temperature is reached if after a next preferred Embodiment of the object of the invention is provided that the cranked Connection bridge embedded in the thermal insulation material of the housing is.
  • connecting piece integrally connected to the evaporator board, if after a Another preferred embodiment of the subject matter of the invention is provided is that the connecting web is at least essentially by a lateral Edge section of the evaporator board section forming the evaporator with the lowest cooling capacity is formed and separated from it by a kerf.
  • the connecting web on connecting sections of the evaporator highest and medium cooling capacity is coupled.
  • the connecting web is particularly simple Can be cranked out from the level of the evaporator with the lowest cooling capacity.
  • a refrigerant channel on the connecting web is particularly inexpensive to apply, if according to a last preferred embodiment of the subject of Invention is provided that the connecting web at least one in the roll bond process produced refrigerant channel.
  • FIG. 1 is a multi-temperature cooling device in a simplified schematic representation 10 shown with a heat-insulating housing 11, which has an outer panel 12, a thermal insulation layer 13 and produced by foaming an inner lining produced by chipless shaping of a plastic board 14 includes and which for receiving three heat insulating and separated refrigeration compartments arranged one above the other. Of these, the is higher than Freezer compartment 15, the middle one as normal refrigerator compartment 16 and the lower one as Fresh cooling compartment 17, which, like the other two cooling compartments 15 and 16 is lined by the inner lining 14.
  • Each of the cooling compartments 15, 16 and 17 is to maintain the intended refrigerator compartment temperature one to one one-piece evaporator board 20 associated evaporator, the to Cooling of the fresh cooler 17 serving evaporators than in the interior of the fresh cooler 17 arranged rear wall evaporator 21 is formed, while both the freezer compartment 15, which is essentially U-shaped and also evaporates the evaporator 23 used to cool the normal cooling compartment 16 as a so-called Cold wall vaporizer designed and heat insulation side on the inner lining 14 are set.

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

Abstract

The evaporators (21,22,23) are component parts of a one piece evaporator panel (20), which have a formed connecting web (24), which connects the evaporator (22) of highest cooling power with the evaporator (21) of average cooling power using flow engineering facilities, and which is led past heat insulated at the evaporator (23) of the smallest cooling power.

Description

Die Erfindung betrifft ein Kühlgerät mit einem wärmeisolierenden Gehäuse, innerhalb welchem wenigstens drei eine unterschiedliche Temperatur aufweisende Kühlfächer angeordnet sind, welche je von einem mit entsprechender Kälteleistung ausgestattetem Verdampfer gekühlt sind, welche in Reihenschaltung hintereinander von einem Kältemittelverdichter mit Kältemittel versorgt sind, welches über eine am Verdampfer höchster Kälteleistung vorgesehenen Einspritzstelle den Verdampfern zugeführt wird.The invention relates to a cooling device with a heat-insulating housing, within which has at least three cooling compartments having a different temperature are arranged, each of which is equipped with a corresponding cooling capacity Evaporators are cooled, which are connected in series by one Refrigerant compressors are supplied with refrigerant, which is on the evaporator The highest cooling capacity provided injection point is supplied to the evaporators.

Bei bekannten Kühlgeräten mit mehreren Fächern unterschiedlicher Temperatur wie beispielsweise einem Gefrierfach, einem Kühlfach und einem Frischkühlfach, sind diese Fächer wärmeisolierend voneinander getrennt, übereinander angeordnet und je von einem mit einer entsprechenden Kälteleistung ausgestatteten Verdampfer gekühlt, wobei diese Verdampfer in Reihenschaltung hintereinander angeordnet sind. Bedingt durch die Reihenschaltung der einzelnen Verdampfer in Verbindung mit der im Gehäuse des Kühlgerätes vorgesehenen Anordnung der Kühlfächer besteht die Notwendigkeit, daß die Kältemittelzuführleitung zum Verdampfen des Frischkühlfaches an dem deutlich wärmeren Normalkühlfach prinzipbedingt vorbeizuführen ist. Dies hat den unerwünschten Effekt zur Folge, daß das für das Frischkühlfach bestimmte und am Normalkühlfach vorbeiströmende Kältemittel während des Vorbeiströmens Wärme aufnimmt und somit die Kälteleistung des Verdampfers im Frischkühlfach herabgesetzt ist.In known cooling devices with several compartments of different temperature such as for example, a freezer compartment, a refrigerator compartment and a fresh cooler compartment these compartments are insulated from one another, arranged one above the other and each cooled by an evaporator equipped with an appropriate cooling capacity, wherein these evaporators are arranged in series. Conditionally through the series connection of the individual evaporators in conjunction with that in the housing of the cooling device, there is a need to that the refrigerant supply line to evaporate the fresh cooler the significantly warmer normal refrigerator compartment must be guided past. This has the undesirable effect that the intended for the fresh cooler and on Refrigerant flowing past normal cooler absorbs heat as it flows past and thus the cooling capacity of the evaporator in the fresh cooling compartment is reduced is.

Der Erfindung liegt die Aufgabe zugrunde, bei einem Kühlgerät im gemäß dem Oberbegiff des Anspruchs 1 mit einfachen konstruktiven Maßnahmen die Nachteile des Standes der Technik zu vermeiden.The invention has for its object in a refrigerator in accordance with the generic term of claim 1 with simple structural measures, the disadvantages of Avoid prior art.

Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß die Verdampfer Bestandteil einer einstückigen Verdampferplatine sind, welche einen Verbindungssteg aufweist, welcher den Verdampfer höchster Kälteleistung mit dem Verdampfer mittlerer Kalteleistung strömungstechnisch verbindet und welcher wärmeisoliert am Verdampfer geringster Kälteleistung vorbeigeführt ist.This object is achieved according to the invention in that the evaporator Are part of a one-piece evaporator board, which has a connecting web which has the evaporator of the highest cooling capacity with the evaporator medium Cold power connects fluidically and which is thermally insulated on the evaporator lowest cooling capacity is passed.

Durch die Integration der Einzelverdampfer zu einer einstückigen Verdampferplatine ist das Verdmapfersystem nicht nur kostengünstig herstellbar, sondern auch montagefreundlich am Kühlgutbehälter eines Kühlgerätes anbringbar. Ferner vereinfacht die einstückige Verdampferplatine nicht nur die Lagerhaltung, sondern auch die Zuführung zu den Montagestraßen in der Kühlgerätefertigung. Durch die wärmeisolierende Abdämmung des zur Kältemittelführung vorgesehenen Verbindungssteges gegenüber dem Kältefach höchster Temperatur ist eine unerwünschte Vorverdampfung des Kältemittels vor seiner Zuführung zu dem Verdampfer mittlerer Kälteleistung vermieden, so daß der kältetechnische Wirkungsgrad der Kälteanlage des Kühlgerätes deutlich verbessert ist.By integrating the individual evaporators into a one-piece evaporator board the vaporiser system is not only inexpensive to manufacture, but also easy to assemble attachable to the refrigerated goods container of a refrigerator. Furthermore, the one-piece evaporator board not only the storage, but also the feed to the assembly lines in the cooling unit production. Due to the heat insulating Insulation of the connecting web provided for refrigerant guidance opposite The refrigeration compartment at the highest temperature is an undesirable pre-evaporation of the refrigerant avoided before it is fed to the evaporator of medium cooling capacity, so that the refrigeration efficiency of the refrigeration system of the cooling device is significantly improved is.

Nach einer bevorzugten Ausführungsform des Gegenstandes der Erfindung ist vorgesehen, daß der Verbindungssteg durch Abkröpfen aus der Ebene des Verdampfers geringster Kälteleistung abgesetzt und gegenüber dem Kühlfach höchster Temperatur wärmeisoliert ist.According to a preferred embodiment of the subject matter of the invention, that the connecting web by cropping from the level of the evaporator the lowest cooling capacity and the highest temperature compared to the refrigerator compartment is heat insulated.

Durch das Abkröpfen ist der Verbindungssteg auf fertigungstechnisch besonders einfach zu verwirklichende Weise sowohl gegenüber dem Verdampfer geringster Kälteleistung als auch gegenüber dem Kühlfach höchster Temperatur wärmetechnisch entkoppelt. Ferner ist der Verdampferplatinenabschnitt des Verdampfers geringster Kälteleistung durch diese Maßnahme hinsichtlich seiner Wärmetauschfläche nur unwesentlich geschmälert.By cranking the connecting web is special in terms of production technology easy to implement way both compared to the evaporator least Refrigeration capacity as well as the highest temperature compared to the refrigerator compartment decoupled. Furthermore, the evaporator board portion of the evaporator is the smallest Cooling capacity through this measure only with regard to its heat exchange surface marginally reduced.

Eine sowohl besonders kostengünstige als auch großseriengerechte und umfassende Entkopplung des Verbindungssteges vom Verdampfer geringster Kälteleistung und vom Kühlfach höchster Temperatur ist erreicht, wenn nach einer nächsten bevorzugten Ausführungsform des Gegenstandes der Erfindung vorgesehen ist, daß der abgekröpfte Verbindungssteg in das Wärmeisolationsmaterial des Gehäuses eingebettet ist.A particularly cost-effective as well as comprehensive and comprehensive Decoupling the connecting web from the evaporator with the lowest cooling capacity and from the refrigerator compartment highest temperature is reached if after a next preferred Embodiment of the object of the invention is provided that the cranked Connection bridge embedded in the thermal insulation material of the housing is.

Fertigungstechnisch besonders einfach und kostengünstig herstellbar ist der einstückig mit der Verdampferplatine verbundene Verbindungssteg, wenn nach einer weiteren bevorzugten Ausführungsform des Gegenstandes der Erfindung vorgesehen ist, daß der Verbindungssteg zumindest im wesentlichen durch einen seitlichen Randabschnitt des den Verdampfer geringster Kälteleistung bildenden Verdampferplatinenabschnittes gebildet und durch eine Schnittfuge von diesem abgetrennt ist.The is technically particularly simple and inexpensive to manufacture connecting piece integrally connected to the evaporator board, if after a Another preferred embodiment of the subject matter of the invention is provided is that the connecting web is at least essentially by a lateral Edge section of the evaporator board section forming the evaporator with the lowest cooling capacity is formed and separated from it by a kerf.

Gemäß einer weiteren bevorzugten Ausführungsform des Gegenstandes der Erfindung ist vorgesehen, daß der Verbindungssteg an Anschlußabschnitte der Verdampfer höchster und mittlerer Kälteleistung angekoppelt ist.According to a further preferred embodiment of the subject of the invention it is provided that the connecting web on connecting sections of the evaporator highest and medium cooling capacity is coupled.

Durch eine derartige Maßnahme ist der Verbindungssteg auf besonders einfache Weise aus der Ebene des Verdampfers geringster Kälteleistung heraus abkröpfbar.With such a measure, the connecting web is particularly simple Can be cranked out from the level of the evaporator with the lowest cooling capacity.

Besonders kostengünstig aufbringbar ist ein Kältemittelkanal auf dem Verbindungssteg, wenn nach einer letzten bevorzugten Ausführungsform des Gegenstandes der Erfindung vorgesehen ist, daß der Verbindungssteg wenigstens einen im Rollbondverfahren hergestellten Kältemittelkanal aufweist.A refrigerant channel on the connecting web is particularly inexpensive to apply, if according to a last preferred embodiment of the subject of Invention is provided that the connecting web at least one in the roll bond process produced refrigerant channel.

Die Erfindung ist in der nachfolgenden Beschreibung anhand eines in der beigefügten Zeichnung vereinfacht dargestellten Ausführungsbeispieles erläutert.The invention is described in the following description with reference to the one in the attached Drawing illustrated simplified embodiment.

Es zeigen:

Fig. 1
ein Dreitemperaturenkühlgerät mit einer drei Verdampfer aufweisenden Verdampferplatine in Schnittdarstellung von der Seite,
Fig. 2
in vereinfachter schematischer Darstellung die im abgezogenen Zustand von einem Kühlgutbehälter dargestellte Verdampferplatine mit einem am Verdampfer geringster Kälteleistung abgesetzten, über Anschlußabschnitte mit den anderen Verdampfern verbundenen Verbindungssteg, in raumbildlicher Ansicht von oben,
Fig. 3
in einem gegenüber Fig. 2 vergrößerten Maßstab ausschnittsweise den Verbindungssteg im Bereich eines dem Verdampfer mittleren Kälteleistung mit dem Verdampfer geringster Kälteleistung verbindenden Anschlußabschnittes, in raumbildlicher Ansicht von oben und
Fig. 4
in einem gegenüber Fig. 2 vergrößertem Maßstab aussschnittsweise den Verbindungssteg im Bereich eines den Verdampfer höchster Kälteleistung mit dem Verdampfer geringster Kälteleistung verbindenden Anschlußabschnittes, in raumbildlicher Ansicht von oben.
Show it:
Fig. 1
a three-temperature cooling device with an evaporator board having three evaporators in a sectional view from the side,
Fig. 2
in a simplified schematic representation, the evaporator board shown in the withdrawn state from a refrigerated goods container with a lowest cooling capacity on the evaporator, connected via connecting sections to the other evaporators, in a spatial view from above,
Fig. 3
on an enlarged scale compared to FIG. 2, a section of the connecting web in the area of a connecting section connecting the evaporator with a medium cooling capacity to the evaporator with the lowest cooling capacity, in a spatial view from above and
Fig. 4
on a larger scale than in FIG. 2, a section of the connecting web in the area of a connecting section connecting the evaporator with the highest cooling capacity to the evaporator with the lowest cooling capacity, in a spatial view from above.

Gemäß Fig. 1 ist in vereinfachter schematischer Darstellung ein Mehrtemperaturenkühlgerät 10 mit einem wärmeisolierenden Gehäuse 11 gezeigt, welches eine Außenverkleidung 12, eine durch Aufschäumen erzeugte Wärmeisolationsschicht 13 und eine durch spanlose Formgebung einer Kunststoffplatine erzeugte Innenverkleidung 14 umfaßt und welches zur Aufnahme von drei wärmeisolierend getrennten und übereinander angeordneten Kältefächern dient. Von diesen ist das höherliegende als Gefrierfach 15, das mittlere als Normalkühlfach 16 und das tieferliegende als Frischkühlfach 17 ausgebildet, welches wie die beiden anderen Kältefächer 15 und 16 durch die Innenverkleidung 14 ausgekleidet ist. Jedes der Kühlfächer 15, 16 und 17 ist zur Aufrechterhaltung der bestimmungsgemäßen Kühlfachtemperatur je ein zu einer einstückigen Verdampferplatine 20 gehörender Verdampfer zugeordnet, wobei der zur Kühlung des Frischkühlfaches 17 dienende Verdampfer als im Innenraum des Frischkühlfaches 17 angeordneter Rückwandverdampfer 21 ausgebildet ist, während sowohl der dem Gefrierfach 15 im wesentlichen U-förmig gebogene Verdampfer 22 als auch der zur Kühlung des Normalkühlfaches 16 dienende Verdampfer 23 als sogenannte Cold Wall-Vedampfer ausgebildet und wärmeisolationsseitig an der Innenverkleidung 14 festgesetzt sind.1 is a multi-temperature cooling device in a simplified schematic representation 10 shown with a heat-insulating housing 11, which has an outer panel 12, a thermal insulation layer 13 and produced by foaming an inner lining produced by chipless shaping of a plastic board 14 includes and which for receiving three heat insulating and separated refrigeration compartments arranged one above the other. Of these, the is higher than Freezer compartment 15, the middle one as normal refrigerator compartment 16 and the lower one as Fresh cooling compartment 17, which, like the other two cooling compartments 15 and 16 is lined by the inner lining 14. Each of the cooling compartments 15, 16 and 17 is to maintain the intended refrigerator compartment temperature one to one one-piece evaporator board 20 associated evaporator, the to Cooling of the fresh cooler 17 serving evaporators than in the interior of the fresh cooler 17 arranged rear wall evaporator 21 is formed, while both the freezer compartment 15, which is essentially U-shaped and also evaporates the evaporator 23 used to cool the normal cooling compartment 16 as a so-called Cold wall vaporizer designed and heat insulation side on the inner lining 14 are set.

Wie insbesondere aus Fig. 2 hervorgeht, ist seitlich neben dem zur Kühlung des Normalkühlfaches 16 dienenden Verdampfer 23 ein zumindest im wesentlichen die Höhe H des Verdampfers 23 und des Normalkühlfaches 16 einnehmender Verbindungssteg 24 vorgesehen, welcher aus der Ebene des Verdampfers 23 um die Höhe h, für welche sich in der Praxis Werte in der Größenordnung von ca. 10 mm bereits bewährt haben, hin zur Außenverleidung 12 abgesetzt ist, so daß wärmeisolationsseitig zwischen der Außenseite der Innenverkleidung 14 und dem Verbindungssteg 24 ein Abstand gebildet ist, welcher es ermöglicht, daß der Verbindungssteg 24 über seine ganze Länge von der Wärmeisolationsschicht 13 umgeben und in diese eingebettet ist, wodurch der Verbindungssteg 24 sowohl vom Normalkühlfach 16 als auch vom Verdampfer 23 wärmeisolierend entkoppelt ist (siehe hierzu Fig. 1). Der Verbindungssteg 24, welcher im vorliegenden Fall durch einen seitlichen, anhand einer Schnittfuge 25 von dem Platinenabschnitt des Verdampfers 23 abgetrennten Randabschnitt gebildet ist, ist einstückig mit stegartigen Anschlußabschnitten 26 bzw. 27 verbunden, von welchen der Anschlußabschnitt 26 den Normalkühlfachverdampfer 23 mit dem Rückwandverdampfer 21 und der Anschlußabschnitt 27 Gefrierfachverdampfer 22 mit dem Normalkühlfachverdampfer 23 verbindet, so daß die Verdampfer 21-23 zu einer einstückigen Verdampferplatine 20 verbunden sind. Diese ist zur Führung von Kältemittel mit einem einzügig über seine drei Verdampfer 21 bis 23 verlaufenden, nach dem Rollbondverfahren hergestellten Kältemittelkanal 28 ausgestattet, welcher im Deckenabschnitt des Gefrierfachverdampfers 22 mit einer Einspritzstelle 29 versehen ist und welcher ausgehend von dieser sich durchgehend über den Decken-, den Boden- und den Rückwandabschnitt des Gefrierfachverdampfers 22 erstreckt, bevor er auf den Anschlußabschnitt 27 übergeführt ist, von wo er über den Verbindungssteg 24 in den Frischkühlverdampfer 21 überführt. Von diesem verläuft der Kältemittelkanal 28 ausgangsseitig über den Anschlußabschnitt 26 zum Normalkühlfachverdampfer 23, von welchem er ausgangsseitig über den Anschlußabschnitt 27 erneut dem Gefrierfachverdampfer 22 zugeführt ist.As can be seen in particular from Fig. 2, is laterally next to that for cooling the Normal cooler 16 serving evaporator 23 an at least essentially Height H of the evaporator 23 and the normal refrigerator compartment 16 connecting web 24 provided, which from the level of the evaporator 23 by the height h, for which values in the order of approx. 10 mm already exist in practice have proven, is deposited towards the outer panel 12, so that heat insulation side between the outside of the inner lining 14 and the connecting web 24 a distance is formed which enables the connecting web 24 surrounded by the heat insulation layer 13 over its entire length and is embedded in this, whereby the connecting web 24 from both Normal cooling compartment 16 and also decoupled from the evaporator 23 in a heat-insulating manner (see see Fig. 1). The connecting web 24, which in the present case by a lateral, using a kerf 25 from the circuit board section of the evaporator 23 separated edge section is formed, is in one piece with web-like connection sections 26 and 27 connected, of which the connecting portion 26 the Normal refrigerator compartment evaporator 23 with the rear wall evaporator 21 and the connection section 27 freezer compartment evaporator 22 connects to the normal refrigerator compartment evaporator 23, so that the evaporators 21-23 connected to an integral evaporator board 20 are. This is for leading refrigerant with one pass through its three evaporators 21 to 23 running refrigerant channel manufactured using the roll bonding process 28 equipped, which in the ceiling section of the freezer evaporator 22 is provided with an injection point 29 and which is based on this throughout the top, bottom and back wall sections of the freezer evaporator 22 extends before it is transferred to the connection section 27, from where it is transferred to the fresh cooling evaporator 21 via the connecting web 24. From this, the refrigerant channel 28 runs on the outlet side via the connection section 26 to the normal refrigerator compartment evaporator 23, from which it is on the outlet side the connection section 27 is fed to the freezer compartment evaporator 22 again.

Claims (6)

Kühlgerät mit einem wärmeisolierenden Gehäuse, innerhalb welchem wenigstens drei eine unterschiedliche Temperatur aufweisende Kühlfächer angeordnet sind, welche je von einem mit entsprechender Kälteleistung ausgestatteten Verdampfer gekühlt sind, welche in Reihenschaltung hintereinander von einem Kältemittelverdichter mit Kältemittel versorgt sind, welches über eine am Verdampfer höchster Kälteleistung vorgesehene Einspritzstelle den Verdampfern zugeführt ist,
dadurch gekennzeichnet, daß die Verdampfer (21, 22, 23) Bestandteil einer einstückigen Verdampferplatine (20) sind, welche einen angeformten Verbindungssteg (24) aufweist, welcher den Verdampfer (22) höchster Kälteleistung mit dem Verdampfer (21) mittlerer Kälteleistung strömungstechnisch verbindet und welcher wärmeisoliert am Verdampfer (23) geringster Kälteleistung vorbeigeführt ist.Cooling device with a heat-insulating housing, within which at least three cooling compartments having a different temperature are arranged, each of which is cooled by an evaporator equipped with a corresponding cooling capacity, which are supplied in series with a refrigerant compressor with refrigerant, which is provided via a cooling capacity provided on the evaporator with the highest cooling capacity Injection point is supplied to the evaporators,
characterized in that the evaporators (21, 22, 23) are part of a one-piece evaporator board (20) which has an integrally formed connecting web (24) which fluidically connects the evaporator (22) with the highest cooling capacity to the evaporator (21) of medium cooling capacity and which is insulated past the evaporator (23) with the lowest cooling capacity. Kältegerät nach Anspruch 1, dadurch gekennzeichnet, daß der Verbindungssteg (24) durch Abkröpfen aus der Ebene des Verdampfers (23) geringster Kälteleistung abgesetzt und gegenüber dem Kühlfach (16) höchster Temperatur wärmeisoliert ist.Refrigerating appliance according to claim 1, characterized in that the connecting web (24) is offset by offsetting from the level of the evaporator (23) with the lowest cooling capacity and is thermally insulated from the cooling compartment (16) of the highest temperature. Kühlgerät nach Anspruch 2, dadurch gekennzeichnet, daß der abgekröpfte Verbindungskanal (24) in das Wärmeisolationsmaterial (13) des Gehäuses (11) eingebettet ist.Cooling device according to claim 2, characterized in that the cranked connecting channel (24) is embedded in the heat insulation material (13) of the housing (11). Kühlgerät nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Verbindungssteg (24) zumindest im wesentlichen durch einen seitlichen Randabschnitt des den Verdampfer (23) geringster Kälteleistung bildenden Verdampferplatinenabschnitts gebildet und durch eine Schnittfuge (25) von diesem abgetrennt ist. Cooling device according to one of claims 1 to 3, characterized in that the connecting web (24) is at least essentially formed by a lateral edge section of the evaporator board section forming the evaporator (23) with the lowest cooling capacity and is separated from it by a kerf (25). Kühlgerät nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Verbindungssteg (24) an Anschlußabschnitte (26, 27) der Verdampfer (22, 21) höchster und mittlerer Kalteleistung angekoppelt ist.Cooling device according to one of claims 1 to 4 , characterized in that the connecting web (24) is coupled to connection sections (26, 27) of the evaporators (22, 21) of the highest and medium cold output. Kühlgerät nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Verbindungssteg (24) wenigstens einen im Rollbond-Verfahren hergestellten Kältemittelkanal (28) aufweist.Cooling device according to one of claims 1 to 5, characterized in that the connecting web (24) has at least one refrigerant channel (28) produced using the roll bond method.
EP99108078A 1998-04-23 1999-04-23 Refrigerating apparatus Withdrawn EP0953812A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998118288 DE19818288B4 (en) 1998-04-23 1998-04-23 cooling unit
DE19818288 1998-04-23

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EP0953812A3 EP0953812A3 (en) 2000-01-26

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WO2006069783A1 (en) * 2004-12-28 2006-07-06 Liebherr-Hausgeräte Ochsenhausen GmbH Refrigerating and freezing appliance

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DE102007044392A1 (en) * 2007-09-18 2009-03-19 BSH Bosch und Siemens Hausgeräte GmbH Refrigerating appliance with an evaporator arrangement and manufacturing method for the evaporator arrangement
DE102009001063B4 (en) * 2009-02-23 2019-05-23 BSH Hausgeräte GmbH Refrigerating appliance with several storage chambers

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US3263440A (en) * 1964-12-14 1966-08-02 Electrolux Ab Refrigeration
DE3224452A1 (en) * 1982-06-30 1984-01-05 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Household refrigerator, especially two-temperature, single-circuit refrigerator
EP0732553A2 (en) * 1995-03-16 1996-09-18 Bosch-Siemens HausgerÀ¤te GmbH Evaporator arrangement especially for compressor driven domestic refrigerators

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10057590A1 (en) * 2000-11-21 2002-05-29 Palux Ag Cooling unit for large kitchens or similar commercial operation includes inner housing for items to be cooled also housing inner wall and insulation unit for thermal insulation
DE10057590B4 (en) * 2000-11-21 2005-10-06 Palux Ag cooling device
WO2006069783A1 (en) * 2004-12-28 2006-07-06 Liebherr-Hausgeräte Ochsenhausen GmbH Refrigerating and freezing appliance

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DE19818288A1 (en) 1999-10-28
EP0953812A3 (en) 2000-01-26

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