EP1866584A1 - Refrigerating device with cooling of circulating air - Google Patents

Refrigerating device with cooling of circulating air

Info

Publication number
EP1866584A1
EP1866584A1 EP06725520A EP06725520A EP1866584A1 EP 1866584 A1 EP1866584 A1 EP 1866584A1 EP 06725520 A EP06725520 A EP 06725520A EP 06725520 A EP06725520 A EP 06725520A EP 1866584 A1 EP1866584 A1 EP 1866584A1
Authority
EP
European Patent Office
Prior art keywords
air
septum
refrigerating appliance
appliance according
cooling
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
EP06725520A
Other languages
German (de)
French (fr)
Other versions
EP1866584B1 (en
Inventor
Alexander GÖRZ
Hans Ihle
Panagiotis Fotiadis
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 EP1866584A1 publication Critical patent/EP1866584A1/en
Application granted granted Critical
Publication of EP1866584B1 publication Critical patent/EP1866584B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
    • 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
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
    • F25D25/024—Slidable shelves
    • F25D25/025—Drawers
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/061—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation through special compartments
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/062—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation along the inside of doors
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/063—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation with air guides
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/065—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return
    • F25D2317/0655—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air return through the top
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/066—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply
    • F25D2317/0665—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply from the top
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0683—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans the fans not of the axial type

Definitions

  • the present invention relates to a refrigeration device with circulating air cooling, that is to say a refrigeration device in whose housing an evaporator region and a cooling region for receiving refrigerated goods are partitioned from one another and the cooling region is cooled by cold air supplied from the evaporator region.
  • the cooling area In order to obtain a closed air circuit, the cooling area must have an air supply and an air discharge opening, and the air flows through the cooling area from the supply to the discharge opening.
  • the cooling area can be divided by one or more support plates or other internals into several compartments, which are flowed through one after another by the cold air.
  • the object of the invention is to provide a convection cooled refrigeration device, which allows to avoid unfavorable high flow velocities of the cold air.
  • a cooling area on which an air supply and an air discharge opening are arranged, is divided by a first septum into a storage zone and an air distributor zone, in which the air supply and air discharge openings are arranged, and that in the septum Variety of holes for the passage of air from the air distribution to the storage zone and vice versa is formed.
  • the septum thus allows cooling on the one hand by heat diffusion through the septum through, but in addition by air exchange, with a required for a desired cooling capacity air exchange rate can be achieved at low flow velocities of the air in the storage zone by the exchange of air with the air distribution to a large surface of the septum distributed.
  • the air distribution zone is subdivided by a dense second septum into an upstream section into which the air supply opening terminates and out of the air into the storage zone, and a downstream section into which the air discharge opening opens and into the air from the storage zone.
  • the second septum guarantees that all the cooling air passes through the storage zone and absorbs heat on its way from the air supply to the air discharge opening.
  • the septum In order to obtain low, spatially evenly distributed flow velocities of the air in the storage zone, the septum should be as large as possible, preferably it fills one side of the storage zone.
  • This side is preferably a ceiling of the storage zone, since there is the lowest risk that refrigerated goods blocked the inflow or outflow of air.
  • it is an air supply channel which runs in the rear wall, while a discharge channel extends through the door, in particular in a refrigeration device with a plurality of refrigerated compartments.
  • an intermediate wall which separates the compartments from each other touches the door in its closed position via a seal.
  • a sheet of air-permeable fiber material can be attached to this, which easily accumulates the incoming air.
  • the first septum is removable, so that a user can remove them if necessary, in order to use the air distribution zone to accommodate refrigerated goods can.
  • Fig. 1 is a perspective view of a refrigerator to which the present invention is implemented
  • FIG. 2 shows a section through the refrigerator of FIG. 1 along the line II of FIG. 1;
  • FIG. 3 is a view of a first embodiment of the first and second septum
  • Fig. 4 is a view of a second embodiment of the partitions
  • Fig. 5 is a view of a third embodiment of the partitions
  • Fig. 6 is a horizontal partial section through the door of the refrigerator.
  • Fig. 1 shows a perspective view of a refrigerator, to which the present invention is to be explained.
  • the device has a body 1 and a door 2.
  • the interior of the body 1 is subdivided into an evaporator region 3 at the top under the ceiling of the body 1, a first cooling region 4 and, separated therefrom by an insulating intermediate wall 5, a second cooling region 6.
  • an extract box 7 is housed in the second cooling area 6 .
  • the first cooling area 4 is normally subdivided by a plurality of refrigerated goods carriers into compartments lying one above the other, but these are omitted in the figure in order to be able to show the rear wall 8 of the body 1 as extensively as possible.
  • An air inlet opening 10 is formed on the front side of an intermediate wall 9 separating the evaporator region 3 from the first cooling region 4 (see FIG. 2), through which air can enter the evaporator region 3 from the first cooling region 4.
  • Lines through which air can flow from the second cooling area 6 to the evaporator area 3 can-not visible in the figure-extend in side walls of the body 1; another possibility shown in the figure is an air duct 11 in the interior of the door 2, which begins at the level of the second cooling area 6 and ends opposite the air inlet opening 10, and whose course is indicated in the figure by dashed lines.
  • a distributor hood 12 Adjacent to the rear wall 8, a distributor hood 12 is attached to the intermediate wall 9, on which a plurality of air holes 13 is formed, through which cold air originating from the evaporator area 3 is distributed in various directions in the upper part of the first cooling area 4. Below the distributor hood 12 are located at the
  • Rear wall 8 a plurality of pairs of openings 14, from which also cold air can flow out.
  • the height of these pairs of openings 14 is selected so that, when refrigerated goods carriers are mounted in the first cooling area 4, each pair of openings 14 feeds a compartment.
  • FIG. 2 shows the refrigeration device of FIG. 1 in a section along a center plane extending vertically and in the depth direction of the body 1, which is shown in FIG. 1 by a dot-dash line II. Inside the evaporator section 3 are in the Cut cooling coils of an evaporator 15 to be seen by the
  • Air inlet opening 10 penetrating air to be flowed.
  • the intermediate wall 9 is down to the rear wall 8 of the body 1 down to a channel 16, in which collects from the evaporator 15 dripping condensate. Via a pipe, not shown, the condensate reaches a in the base area 17 (see Fig. 1) of the body 1 housed evaporator.
  • a fan is housed, which comprises a motor 18, a paddle wheel 19 driven by the latter and a housing 20.
  • a housing 20 At the front of the housing 20, in the axial direction of the impeller 19, an intake opening is formed.
  • the upper half of the housing 20 extends in
  • a pivotable flap 22 is housed in this chamber 21 .
  • the flap 22 blocks a cold air supply opening 23, which leads vertically down to the first cooling area 4. The air is thus pushed towards the rear wall 8 and into a cold air supply path 24, which leads to the second cooling region 6 inside the rear wall 8, separated from the first cooling area 4 by a thin insulation layer 25.
  • Cold air supply port 23 and the cold air supply line 24 hinged flap 22 is brought into a vertical position shown in the figure as a dotted outline, it obstructs the Kaltluftmakerssweg 24, and the cold air flow reaches through the cold air supply port 23, the distributor hood 12.
  • one of the air holes 13 to see through the air from the distributor hood 12 flows into the first cooling area
  • the cold air supply path 24 leads to a cold air supply opening 37 of the second cooling area 6 and reaches a first distribution chamber 27 which extends transversely to the sectional plane of FIG. 2 over the entire width of the second cooling area 6 and about half of its depth to a vertical partition wall 28 extends.
  • the vertical septum 28 is integrally formed with a horizontal plastic divider 29.
  • the horizontal septum 29 forms the bottom of the first Distribution chamber 27 and separates them from an underlying storage zone of the second cooling area. It is provided with a multiplicity of openings 30 (see FIG. 3) via which the distribution chamber 27 distributes cold air supplied over the supply path 24 over a large area into the storage zone and the upwardly open drawer 7 accommodated therein.
  • a second distribution chamber 31 is located in mirror image to the first distribution chamber 27 between the vertical partition wall 28 and the door 2.
  • the widened at the intermediate wall 5 between the cooling areas 4 and 6 widened upper edge of the septum 28 separates the distribution chambers 27, 31 from each other and prevents or limited a direct passage of cold air from the chamber 27 into the chamber 31.
  • the upper edge of the septum 28 may be provided with a sealing strip, not shown in the figure, between it and the intermediate wall 5 is compressed and makes a close contact. But it can also be a narrow gap between the upper edge of the septum 28 and the intermediate wall 5 are accepted, provided that the air flow through this gap remains small compared to that flows from the first distribution chamber 27 in the drawer 7.
  • An air discharge opening 33 on the side of the second distribution chamber 31 facing the door faces an inlet opening of the air line 11 which extends through the door 2 back to the evaporator region 3.
  • An attached at the front edge of the intermediate wall 5 and between this and the door 2 compressed sealing strip 34 prevents passage of air from the distribution chamber 31 in the first cooling area 4 and thereby ensures that the two cooling areas 4, 6 separated and without affecting each other can be acted upon with cold air.
  • the part forming the partition walls 28, 29 is removably mounted in the second cooling area 6; in the case considered here, its lateral edges rest on webs 35, which each extend from the side walls of the second cooling region 6 by a few Projecting millimeters. This gives the user the opportunity to remove the partitions 28, 29 and to fill the drawer 7 to be filled with refrigerated goods beyond its upper edge, if necessary.
  • FIG. 3 shows a perspective view of the partitions 28, 29 forming the component according to a first embodiment.
  • the vertical septum 28 subdivides the horizontal 29 into two equal partial areas, in which the openings 30 and 32 are distributed in a regular pattern.
  • two curved, projecting into the first distribution chamber 27 ribs 36 are formed on the horizontal septum 27, which serve a portion of the cold air flow through the drawn as a dashed outline cold air supply opening 37 at the lower end of the Kaltluftmakerssweges
  • the openings 30, 32 are made so large that the horizontal partition 29 is effectively reduced to a grid.
  • the openings 30, 32 are made so large that the horizontal partition 29 is effectively reduced to a grid.
  • Flow resistance provided in the figure, not shown rectangular piece of fleece or fabric, which covers the openings 30 and is held by means of elastic clips 38 in place.
  • a fleece or fabric may also be attached to these.
  • Fig. 6 shows a section of a horizontal section through the door 2.
  • the door 2 has in a conventional manner a solid outer skin 40, a solid inner skin 41 and a intervening cavity filling insulating layer 42.
  • a solid outer skin 40 a solid outer skin 40
  • a solid inner skin 41 a solid inner skin 41
  • a intervening cavity filling insulating layer 42 a solid outer skin 40
  • Insulation layer 42 projects a, attached to the inner skin 41, for example, bonded extruded profile 43.
  • the extruded profile 43 has a base 44 facing the base 44, of which, distributed in the width direction, four webs 45 protrude.
  • the extruded profile 43 bounded together with the inner skin 41 three channels 46, which together form the air duct 11. Since this air duct 11 runs directly along the inner skin 41, the air circulating in it, if colder than the first cooling area 4, can additionally cool near-door regions of the first cooling area 4, which are conventionally cooled worse than regions near the rear wall 8 thus contribute to a particularly uniform temperature distribution in the first cooling area 4.

Landscapes

  • 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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

A cooling zone (6) of a refrigerating device is subdivided by a first partition (29) into a storage zone and an air distribution zone (27, 31). An air supply inlet and an air outlet (37, 33) open into the air distribution zone, and a plurality of holes (30, 32) are formed in the partition (29) for letting air through from the air distribution zone (27, 31) into the storage zone and vice versa.

Description

Kältegerät mit Umluftkühlung Refrigeration unit with circulating air cooling
Die vorliegende Erfindung betrifft ein Kältegerät mit Umluftkühlung, das heißt ein Kältegerät, in dessen Gehäuse ein Verdampferbereich und ein Kühlbereich zur Aufnahme von Kühlgut voneinander abgeteilt sind und der Kühlbereich durch aus dem Ver- dampferbereich zugeführte Kaltluft gekühlt wird. Um einen geschlossenen Luftkreislauf zu erhalten, muss der Kühlbereich eine Luftzufuhr- und eine Luftabfuhröffnung aufweisen, und die Luft strömt durch den Kühlbereich von der Zufuhr- zu der Abfuhröffnung.The present invention relates to a refrigeration device with circulating air cooling, that is to say a refrigeration device in whose housing an evaporator region and a cooling region for receiving refrigerated goods are partitioned from one another and the cooling region is cooled by cold air supplied from the evaporator region. In order to obtain a closed air circuit, the cooling area must have an air supply and an air discharge opening, and the air flows through the cooling area from the supply to the discharge opening.
In unmittelbarer Nähe der Luftzufuhr- und -abfuhröffnungen werden hohe Luftströmungsgeschwindigkeiten erreicht, die bei ungeschütztem Kühlgut zu einerIn the immediate vicinity of the air supply and discharge openings high air flow speeds are achieved, the unprotected refrigerated goods to a
Austrocknung führen können. Außerdem besteht bei einer ungünstigen Einstellung der Solltemperatur des Kühlfaches die Gefahr, dass Kühlgut durch einströmende Kaltluft, die zwangsläufig kälter als die Solltemperatur ist, geschädigt wird.Can cause dehydration. In addition, in the case of an unfavorable setting of the setpoint temperature of the refrigerating compartment, there is the risk that refrigerated goods will be damaged by inflowing cold air, which is inevitably colder than the setpoint temperature.
Der Kühlbereich kann durch ein oder mehrere Trägerplatten oder andere Einbauten in mehrere Fächer unterteilt sein, die eines nach dem anderen von der Kaltluft durchströmt werden.The cooling area can be divided by one or more support plates or other internals into several compartments, which are flowed through one after another by the cold air.
Wenn ein solcher Kühlbereich oder ein darin abgeteiltes Fach von einem Auszugkasten ausgefüllt ist, behindert dieser den Luftstrom erheblich. Es ist daher vorgeschlagen worden, den Kühlluftstrom entlang der Seitenwände und des Bodens eines solchen Kastens zu lenken, um dessen Inneres durch die Kastenwände hindurch zu kühlen. Die Wärmemenge, die pro Zeiteinheit auf diese Weise aus dem Auszugkasten abgeführt werden kann, ist zwar sehr gering, doch kann dies hingenommen werden, da der ringsum von Kaltluft umspülte Auszugkasten allenfalls einen sehr geringen Wärmezustrom aus der Umgebung des Kältegerätes erfährt. Nachteilig ist jedoch, dass auch durch frisch eingeladenes, warmes Kühlgut in den Auszugkasten eingetragene Wärme nur sehr langsam abgeführt werden kann. Des Weiteren beanspruchen die rings um den Auszugkasten benötigten Strömungswege Platz, der nicht mehr zur Unterbringung von Kühlgut zur Verfügung steht. Aufgabe der Erfindung ist, ein umluftgekühltes Kältegerät zu schaffen, das es erlaubt, ungünstige hohe Strömungsgeschwindigkeiten der Kaltluft zu vermeiden.If such a cooling area or a partitioned compartment is filled by a drawer, this obstructs the air flow considerably. It has therefore been proposed to direct the flow of cooling air along the sidewalls and bottom of such a box to cool its interior through the box walls. The amount of heat that can be dissipated per unit time in this way from the drawer is indeed very low, but this can be tolerated because of all around cold air drawer drawer at best experiences a very low heat flux from the environment of the refrigerator. The disadvantage, however, that even by freshly invited, warm chilled goods in the drawer heat registered can be dissipated only very slowly. Furthermore, the flow paths required around the drawer take up space that is no longer available for storing refrigerated goods. The object of the invention is to provide a convection cooled refrigeration device, which allows to avoid unfavorable high flow velocities of the cold air.
Die Aufgabe wird dadurch gelöst, dass ein Kühlbereich, an dem eine Luftzufuhr- und eine Luftabfuhröffnung angeordnet sind, durch eine erste Scheidewand unterteilt ist in eine Lagerzone und eine Luftverteilerzone, in welcher die Luftzufuhr- und Luftabfuhröffnungen angeordnet sind, und dass in der Scheidewand eine Vielzahl von Löchern für den Übertritt von Luft von der Luftverteilerzone in die Lagerzone und umgekehrt gebildet ist. Die Scheidewand erlaubt somit eine Kühlung einerseits durch Wärmediffusion durch die Scheidewand hindurch, zusätzlich aber vor allem durch Luftaustausch, wobei eine für eine gewünschte Kühlleistung benötigte Luftaustauschrate bei geringen Strömungsgeschwindigkeiten der Luft in der Lagerzone erreicht werden kann, indem sich der Luftaustausch mit der Luftverteilerzone auf eine große Oberfläche der Scheidewand verteilt.The object is achieved in that a cooling area, on which an air supply and an air discharge opening are arranged, is divided by a first septum into a storage zone and an air distributor zone, in which the air supply and air discharge openings are arranged, and that in the septum Variety of holes for the passage of air from the air distribution to the storage zone and vice versa is formed. The septum thus allows cooling on the one hand by heat diffusion through the septum through, but in addition by air exchange, with a required for a desired cooling capacity air exchange rate can be achieved at low flow velocities of the air in the storage zone by the exchange of air with the air distribution to a large surface of the septum distributed.
Vorzugsweise ist die Luftverteilerzone durch eine dichte zweite Scheidewand in einen stromaufwärtigen Abschnitt, in den die Luftzufuhröffnung mündet und aus dem Luft in die Lagerzone übertritt, und einen stromabwärtigen Abschnitt unterteilt, in den die Luftabfuhröffnung mündet und in den Luft aus der Lagerzone übertritt. Die zweite Scheidewand garantiert, dass die gesamte Kühlluft auf dem Weg von der Luftzufuhr- zur Luftabfuhröffnung die Lagerzone durchquert und dort Wärme aufnimmt.Preferably, the air distribution zone is subdivided by a dense second septum into an upstream section into which the air supply opening terminates and out of the air into the storage zone, and a downstream section into which the air discharge opening opens and into the air from the storage zone. The second septum guarantees that all the cooling air passes through the storage zone and absorbs heat on its way from the air supply to the air discharge opening.
Um niedrige, örtlich gleichmäßig verteilte Strömungsgeschwindigkeiten der Luft in der Lagerzone zu erhalten, sollte die Scheidewand möglichst großflächig sein, vorzugsweise füllt sie eine Seite der Lagerzone aus.In order to obtain low, spatially evenly distributed flow velocities of the air in the storage zone, the septum should be as large as possible, preferably it fills one side of the storage zone.
Bei dieser Seite handelt es sich vorzugsweise um eine Decke der Lagerzone, da dort die Gefahr am geringsten ist, dass Kühlgut den Zu- oder Abfluss der Luft blockiert.This side is preferably a ceiling of the storage zone, since there is the lowest risk that refrigerated goods blocked the inflow or outflow of air.
Besonders zweckmäßig ist dies, wenn die Lagerzone einen oben offenen Auszugkasten enthält, da durch die an der Decke der Lagerzone angebrachte Scheidewand Kaltluft ungehindert in den Kasten hineinfließen und aus diesem wieder abgezogen werden kann. Von Luftzufuhr- und Luftabfuhröffnung ist vorzugsweise eine an einen in der Rückwand des Kältegerätes geführten Kanal angeschlossen, und die andere ist einer Endöffnung eines in der Tür des Kältegerätes geführten Kanals zugewandt.This is particularly useful when the storage zone contains an open-topped drawer, as flow through the mounted on the ceiling of the storage zone septum cold air unhindered into the box and can be deducted from this again. From Luftzufuhr- and air discharge opening is preferably connected to a guided in the rear wall of the refrigerator duct, and the other is facing an end opening of a run in the door of the refrigerator channel.
Vorzugsweise ist es ein Luftzufuhrkanal, der in der Rückwand verläuft, während ein Abfuhrkanal durch die Tür verläuft, insbesondere bei einem Kältegerät mit mehreren Kühlfächern.Preferably, it is an air supply channel which runs in the rear wall, while a discharge channel extends through the door, in particular in a refrigeration device with a plurality of refrigerated compartments.
Um bei einem Kältegerät mit mehreren Kühlfächern einen Luftaustausch zwischen den Fächern, der eine unabhängige Temperatursteuerung beider Fächer erschwert, zu unterbinden, kann vorgesehen werden, dass eine Zwischenwand, die die Kühlfächer voneinander trennt, die Tür in ihrer geschlossenen Stellung über eine Dichtung berührt.In order to prevent an air exchange between the compartments, which impedes an independent temperature control of both compartments in a refrigerator with multiple compartments, it can be provided that an intermediate wall which separates the compartments from each other, touches the door in its closed position via a seal.
Um eine gleichmäßige Verteilung des Luftzustromes über die Fläche der ersten Scheidewand zu erreichen, kann an dieser ein Blatt eines luftdurchlässigen Fasermaterials angebracht sein, das die zuströmende Luft leicht aufstaut.In order to achieve a uniform distribution of the air flow over the surface of the first septum, a sheet of air-permeable fiber material can be attached to this, which easily accumulates the incoming air.
Gemäß einer besonders bevorzugten Ausgestaltung ist die erste Scheidewand demontierbar, so dass ein Benutzer sie im Bedarfsfalle entfernen kann, um auch die Luftverteilerzone zur Unterbringung von Kühlgut nutzen zu können.According to a particularly preferred embodiment, the first septum is removable, so that a user can remove them if necessary, in order to use the air distribution zone to accommodate refrigerated goods can.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen unter Bezugnahme auf die beigefügten Figuren. Es zeigen:Further features and advantages of the invention will become apparent from the following description of embodiments with reference to the accompanying figures. Show it:
Fig. 1 eine perspektivische Ansicht eines Kältegerätes, an dem die vorliegende Erfindung verwirklicht ist;Fig. 1 is a perspective view of a refrigerator to which the present invention is implemented;
Fig. 2 einen Schnitt durch das Kältegerät der Fig. 1 entlang der Linie Il aus Fig. 1 ;FIG. 2 shows a section through the refrigerator of FIG. 1 along the line II of FIG. 1; FIG.
Fig. 3 eine Ansicht einer ersten Ausgestaltung von erster und zweiter Scheidewand;3 is a view of a first embodiment of the first and second septum;
Fig. 4 eine Ansicht einer zweiten Ausgestaltung der Scheidewände; Fig. 5 eine Ansicht einer dritten Ausgestaltung der Scheidewände; undFig. 4 is a view of a second embodiment of the partitions; Fig. 5 is a view of a third embodiment of the partitions; and
Fig. 6 einen horizontalen Teilschnitt durch die Tür des Kältegerätes.Fig. 6 is a horizontal partial section through the door of the refrigerator.
Fig. 1 zeigt eine perspektivische Ansicht eines Kältegerätes, an dem die vorliegende Erfindung erläutert werden soll. Das Gerät hat einen Korpus 1 und eine Tür 2. Das Innere des Korpus 1 ist unterteilt in einen Verdampferbereich 3 oben unter der Decke des Korpus 1 , einen ersten Kühlbereich 4 und, von diesem durch eine isolierende Zwischenwand 5 getrennt, einen zweiten Kühlbereich 6. Im zweiten Kühlbereich 6 ist ein Auszugkasten 7 untergebracht. Der erste Kühlbereich 4 ist normalerweise durch mehrere Kühlgutträger in übereinanderliegende Fächer unterteilt, die allerdings in der Figur weggelassen sind, um möglichst großflächig die Rückwand 8 des Korpus 1 zeigen zu können.Fig. 1 shows a perspective view of a refrigerator, to which the present invention is to be explained. The device has a body 1 and a door 2. The interior of the body 1 is subdivided into an evaporator region 3 at the top under the ceiling of the body 1, a first cooling region 4 and, separated therefrom by an insulating intermediate wall 5, a second cooling region 6. In the second cooling area 6 an extract box 7 is housed. The first cooling area 4 is normally subdivided by a plurality of refrigerated goods carriers into compartments lying one above the other, but these are omitted in the figure in order to be able to show the rear wall 8 of the body 1 as extensively as possible.
An der Vorderseite einer den Verdampferbereich 3 vom ersten Kühlbereich 4 trennenden Zwischenwand 9 (siehe Fig. 2) ist eine Lufteinlassöffnung 10 gebildet, durch die Luft aus dem ersten Kühlbereich 4 in den Verdampferbereich 3 eintreten kann. Leitungen, durch die Luft aus dem zweiten Kühlbereich 6 zum Verdampferbereich 3 strömen kann, können - in der Figur nicht sichtbar - in Seitenwänden des Korpus 1 verlaufen; eine andere, in der Figur dargestellte Möglichkeit ist eine Luftleitung 11 im Inneren der Tür 2, die in Höhe des zweiten Kühlbereiches 6 beginnt und gegenüber der Lufteinlassöffnung 10 endet, und deren Verlauf in der Figur durch gestrichelte Linien angedeutet ist.An air inlet opening 10 is formed on the front side of an intermediate wall 9 separating the evaporator region 3 from the first cooling region 4 (see FIG. 2), through which air can enter the evaporator region 3 from the first cooling region 4. Lines through which air can flow from the second cooling area 6 to the evaporator area 3 can-not visible in the figure-extend in side walls of the body 1; another possibility shown in the figure is an air duct 11 in the interior of the door 2, which begins at the level of the second cooling area 6 and ends opposite the air inlet opening 10, and whose course is indicated in the figure by dashed lines.
Benachbart zur Rückwand 8 ist an der Zwischenwand 9 eine Verteilerhaube 12 befestigt, an der eine Vielzahl von Luftlöchern 13 gebildet ist, durch die hindurch aus dem Verdampferbereich 3 herrührende Kaltluft sich im Oberteil des ersten Kühlbereiches 4 in diverse Richtungen verteilt. Unterhalb der Verteilerhaube 12 befinden sich an derAdjacent to the rear wall 8, a distributor hood 12 is attached to the intermediate wall 9, on which a plurality of air holes 13 is formed, through which cold air originating from the evaporator area 3 is distributed in various directions in the upper part of the first cooling area 4. Below the distributor hood 12 are located at the
Rückwand 8 mehrere Paare von Öffnungen 14, aus denen ebenfalls Kaltluft ausströmen kann. Die Höhe dieser Paare von Öffnungen 14 ist so gewählt, dass, wenn Kühlgutträger in den ersten Kühlbereich 4 montiert sind, jedes Paar von Öffnungen 14 ein Fach versorgt.Rear wall 8 a plurality of pairs of openings 14, from which also cold air can flow out. The height of these pairs of openings 14 is selected so that, when refrigerated goods carriers are mounted in the first cooling area 4, each pair of openings 14 feeds a compartment.
Fig. 2 zeigt das Kältegerät der Fig. 1 in einem Schnitt entlang einer sich vertikal und in Tiefenrichtung des Korpus 1 erstreckenden Mittelebene, die in Fig. 1 durch eine strichpunktierte Linie Il dargestellt ist. Im Inneren des Verdampferbereiches 3 sind in dem Schnitt Kühlschlangen eines Verdampfers 15 zu sehen, die von durch dieFIG. 2 shows the refrigeration device of FIG. 1 in a section along a center plane extending vertically and in the depth direction of the body 1, which is shown in FIG. 1 by a dot-dash line II. Inside the evaporator section 3 are in the Cut cooling coils of an evaporator 15 to be seen by the
Lufteinlassöffnung 10 eindringender Luft angeströmt werden. Die Zwischenwand 9 ist zur Rückwand 8 des Korpus 1 hin abschüssig zu einer Rinne 16, in der sich vom Verdampfer 15 abtropfendes Kondenswasser sammelt. Über eine nicht dargestellte Rohrleitung erreicht das Kondenswasser einen im Sockelbereich 17 (siehe Fig. 1) des Korpus 1 untergebrachten Verdunster.Air inlet opening 10 penetrating air to be flowed. The intermediate wall 9 is down to the rear wall 8 of the body 1 down to a channel 16, in which collects from the evaporator 15 dripping condensate. Via a pipe, not shown, the condensate reaches a in the base area 17 (see Fig. 1) of the body 1 housed evaporator.
Hinter der Rinne 16, benachbart zur Rückwand 8, ist ein Gebläse untergebracht, das einen Motor 18, ein von diesem angetriebenes Schaufelrad 19 und ein Gehäuse 20 umfasst. An der Vorderseite des Gehäuses 20, in axiale Richtung des Schaufelrades 19, ist eine Ansaugöffnung gebildet. Die obere Hälfte des Gehäuses 20 verläuft inBehind the channel 16, adjacent to the rear wall 8, a fan is housed, which comprises a motor 18, a paddle wheel 19 driven by the latter and a housing 20. At the front of the housing 20, in the axial direction of the impeller 19, an intake opening is formed. The upper half of the housing 20 extends in
Umfangsrichtung eng um das Schaufelrad 19; nach unten ist das Gehäuse 20 offen, so dass durch eine Drehung des Schaufelrades 19 radial nach außen beschleunigte Luft nach unten in eine Kammer 21 abfließt.Circumferential direction closely around the paddle wheel 19; downwardly, the housing 20 is open, so that by a rotation of the impeller 19 radially outwardly accelerated air flows down into a chamber 21.
In dieser Kammer 21 ist eine schwenkbare Klappe 22 untergebracht. In der in der Figur gezeigten Stelle versperrt die Klappe 22 eine Kaltluftversorgungsöffnung 23, die vertikal nach unten zum ersten Kühlbereich 4 führt. Die Luft wird so zur Rückwand 8 hin und in einen Kaltluftversorgungsweg 24 hinein abgedrängt, der im Inneren der Rückwand 8, vom ersten Kühlbereich 4 durch eine dünne Isolationsschicht 25 getrennt, zum zweiten Kühlbereich 6 führt. Wenn die an eine Zwischenwand 26 zwischen derIn this chamber 21 a pivotable flap 22 is housed. In the position shown in the figure, the flap 22 blocks a cold air supply opening 23, which leads vertically down to the first cooling area 4. The air is thus pushed towards the rear wall 8 and into a cold air supply path 24, which leads to the second cooling region 6 inside the rear wall 8, separated from the first cooling area 4 by a thin insulation layer 25. When attached to an intermediate wall 26 between the
Kaltluftversorgungsöffnung 23 und der Kaltluftversorgungsleitung 24 angelenkte Klappe 22 in eine in der Figur als punktierter Umriss dargestellte vertikale Stellung gebracht wird, versperrt sie den Kaltluftversorgungsweg 24, und der Kaltluftstrom erreicht durch die Kaltluftversorgungsöffnung 23 die Verteilerhaube 12. In der Figur ist eines der Luftlöcher 13 zu sehen, durch die Luft aus der Verteilerhaube 12 in den ersten Kühlbereich 4 ausströmt.Cold air supply port 23 and the cold air supply line 24 hinged flap 22 is brought into a vertical position shown in the figure as a dotted outline, it obstructs the Kaltluftversorgungsweg 24, and the cold air flow reaches through the cold air supply port 23, the distributor hood 12. In the figure, one of the air holes 13 to see through the air from the distributor hood 12 flows into the first cooling area
Der Kaltluftversorgungsweg 24 führt zu einer Kaltluftzufuhröffnung 37 des zweiten Kühlbereichs 6 und erreicht dort eine erste Verteilerkammer 27, die sich quer zur Schnittebene der Fig. 2 über die gesamte Breite des zweiten Kühlbereiches 6 und über etwa die Hälfte von dessen Tiefe bis zu einer vertikalen Scheidewand 28 erstreckt. Die vertikale Scheidewand 28 ist einteilig mit einer horizontalen Scheidewand 29 aus Kunststoff geformt. Die horizontale Scheidewand 29 bildet den Boden der ersten Verteilerkammer 27 und trennt diese von einer darunterliegenden Lagerzone des zweiten Kühlbereichs. Sie ist mit einer Vielzahl von Öffnungen 30 (siehe Fig. 3) versehen, über die der Verteilerkammer 27 über den Versorgungsweg 24 zugeführte Kaltluft großflächig verteilt in die Lagerzone und den darin untergebrachten, nach oben offenen Auszugkasten 7 eintritt.The cold air supply path 24 leads to a cold air supply opening 37 of the second cooling area 6 and reaches a first distribution chamber 27 which extends transversely to the sectional plane of FIG. 2 over the entire width of the second cooling area 6 and about half of its depth to a vertical partition wall 28 extends. The vertical septum 28 is integrally formed with a horizontal plastic divider 29. The horizontal septum 29 forms the bottom of the first Distribution chamber 27 and separates them from an underlying storage zone of the second cooling area. It is provided with a multiplicity of openings 30 (see FIG. 3) via which the distribution chamber 27 distributes cold air supplied over the supply path 24 over a large area into the storage zone and the upwardly open drawer 7 accommodated therein.
Eine zweite Verteilerkammer 31 befindet sich spiegelbildlich zu der ersten Verteilerkammer 27 zwischen der vertikalen Scheidewand 28 und der Tür 2. Die an der Zwischenwand 5 zwischen den Kühlbereichen 4 und 6 anliegende verbreiterte Oberkante der Scheidewand 28 trennt die Verteilerkammern 27, 31 voneinander und verhindert oder begrenzt einen direkten Übertritt von Kaltluft von der Kammer 27 in die Kammer 31. Um eine wirksame Luftsperre zwischen den Kammern 27, 31 zu schaffen, kann die Oberkante der Scheidewand 28 mit einem in der Figur nicht gezeigten Dichtungsstreifen versehen sein, der zwischen ihr und der Zwischenwand 5 zusammengedrückt ist und einen dichten Kontakt herstellt. Es kann aber auch ein schmaler Spalt zwischen der Oberkante der Scheidewand 28 und der Zwischenwand 5 hingenommen werden, sofern der Luftstrom durch diesen Spalt klein bleibt gegenüber dem, der von der ersten Verteilerkammer 27 in den Auszugkasten 7 fließt.A second distribution chamber 31 is located in mirror image to the first distribution chamber 27 between the vertical partition wall 28 and the door 2. The widened at the intermediate wall 5 between the cooling areas 4 and 6 widened upper edge of the septum 28 separates the distribution chambers 27, 31 from each other and prevents or limited a direct passage of cold air from the chamber 27 into the chamber 31. In order to provide an effective air barrier between the chambers 27, 31, the upper edge of the septum 28 may be provided with a sealing strip, not shown in the figure, between it and the intermediate wall 5 is compressed and makes a close contact. But it can also be a narrow gap between the upper edge of the septum 28 and the intermediate wall 5 are accepted, provided that the air flow through this gap remains small compared to that flows from the first distribution chamber 27 in the drawer 7.
Aus dem Auszugkasten 7 fließt die Luft durch Öffnungen 32, die in der horizontalen Scheidewand 28 zwischen der Lagerzone und der zweiten Verteilerkammer 31 gebildet sind, in letztere ab.From the pull-out box 7, the air flows through openings 32, which are formed in the horizontal septum 28 between the storage zone and the second distribution chamber 31, in the latter.
Einer Luftabfuhröffnung 33 an der der Tür zugewandten Seite der zweiten Verteilerkammer 31 liegt eine Einlassöffnung der durch die Tür 2 zurück zum Verdampferbereich 3 verlaufenden Luftleitung 11 gegenüber. Ein an der Vorderkante der Zwischenwand 5 befestigter und zwischen dieser und der Tür 2 komprimierter Dichtstreifen 34 verhindert einen Übertritt von Luft aus der Verteilerkammer 31 in den ersten Kühlbereich 4 und stellt dadurch sicher, dass die zwei Kühlbereiche 4, 6 getrennt und ohne einander zu beeinflussen mit Kaltluft beaufschlagt werden können.An air discharge opening 33 on the side of the second distribution chamber 31 facing the door faces an inlet opening of the air line 11 which extends through the door 2 back to the evaporator region 3. An attached at the front edge of the intermediate wall 5 and between this and the door 2 compressed sealing strip 34 prevents passage of air from the distribution chamber 31 in the first cooling area 4 and thereby ensures that the two cooling areas 4, 6 separated and without affecting each other can be acted upon with cold air.
Das die Scheidewände 28, 29 bildende Bauteil ist in dem zweiten Kühlbereich 6 entnehmbar montiert; im hier betrachteten Fall liegen seine seitlichen Ränder auf Stegen 35 auf, die aus den Seitenwänden des zweiten Kühlbereiches 6 jeweils um einige Millimeter vorspringen. Dies gibt dem Benutzer die Möglichkeit, die Scheidewände 28, 29 zu entfernen und den Auszugkasten 7 bis über seine Oberkante hinaus mit Kühlgut zu füllen, wenn dies erforderlich sein sollte.The part forming the partition walls 28, 29 is removably mounted in the second cooling area 6; in the case considered here, its lateral edges rest on webs 35, which each extend from the side walls of the second cooling region 6 by a few Projecting millimeters. This gives the user the opportunity to remove the partitions 28, 29 and to fill the drawer 7 to be filled with refrigerated goods beyond its upper edge, if necessary.
Fig. 3 zeigt eine perspektivische Ansicht des die Scheidewände 28, 29 bildenden Bauteils gemäß einer ersten Ausgestaltung. Die vertikale Scheidewand 28 unterteilt die horizontale 29 in zwei gleich große Teilflächen, in denen die Öffnungen 30 bzw. 32 in einem regelmäßigen Muster verteilt sind. In der abgewandelten Ausgestaltung der Fig. 4 sind an der horizontalen Scheidewand 29 zwei geschwungene, in die erste Verteilerkammer 27 hineinragende Rippen 36 gebildet, die dazu dienen, einen Teil des Kaltluftstromes, der durch die als gestrichelter Umriss eingezeichnete Kaltluftzufuhröffnung 37 am unteren Ende des Kaltluftversorgungsweges 24 in die erste Verteilerkammer 27 eintretenden Luftstromes zur Seite abzulenken, um so eine gleichmäßige Verteilung des Luftdurchsatzes auf die Öffnungen 30 oder eventuell sogar einen etwas höheren Durchsatz an den mehr zur Rückwand 8 liegenden Öffnungen 30 zu erzielen.3 shows a perspective view of the partitions 28, 29 forming the component according to a first embodiment. The vertical septum 28 subdivides the horizontal 29 into two equal partial areas, in which the openings 30 and 32 are distributed in a regular pattern. In the modified embodiment of Fig. 4, two curved, projecting into the first distribution chamber 27 ribs 36 are formed on the horizontal septum 27, which serve a portion of the cold air flow through the drawn as a dashed outline cold air supply opening 37 at the lower end of the Kaltluftversorgungsweges To divert 24 into the first distribution chamber 27 incoming air flow to the side so as to achieve a uniform distribution of the air flow to the openings 30 or possibly even a slightly higher throughput at the more lying to the rear wall 8 openings 30.
Um eine ähnliche Wirkung zu erzielen, wäre es einer nicht gezeigten Abwandlung zufolge auch möglich, die Dichte oder Querschnittsfläche der Öffnungen 30 über die horizontale Scheidewand 29 hinweg in Tiefenrichtung des Korpus 2 zu variieren, insbesondere die Öffnungen 30 bzw. 32 in der Nähe der Rückwand 8 bzw. der Tür 2 größer als in der Nähe der vertikalen Scheidewand 28 zu machen.In order to achieve a similar effect, according to a modification not shown, it would also be possible to vary the density or cross-sectional area of the apertures 30 across the horizontal septum 29 in the depth direction of the body 2, in particular the apertures 30 and 32, respectively, in the vicinity of the rear wall 8 and the door 2 to make larger than in the vicinity of the vertical partition wall 28.
Bei der in Fig. 5 gezeigten Ausgestaltung sind die Öffnungen 30, 32 so groß gemacht, dass die horizontale Scheidewand 29 gewissermaßen auf ein Gitter reduziert ist. Um hier die aus der Verteilerkammer 31 ausströmende Luft gleichmäßig über die Oberfläche der Scheidewand 29 zu verteilen, ist hier als Mittel zum Erzeugen einesIn the embodiment shown in Fig. 5, the openings 30, 32 are made so large that the horizontal partition 29 is effectively reduced to a grid. Here, in order to evenly distribute the air flowing out of the distribution chamber 31 over the surface of the septum 29, is here as a means for generating a
Strömungswiderstandes ein in der Figur nicht dargestelltes rechteckiges Stück Vlies oder Gewebe vorgesehen, das die Öffnungen 30 überdeckt und mit Hilfe von elastischen Klammern 38 an Ort und Stelle gehalten ist. Um auch den Abfluss von Luft in die zweite Verteilerkammer 31 durch die Öffnungen 32 gleichmäßig zu verteilen, kann auch an diesen ein Vlies oder Gewebe befestigt sein.Flow resistance provided in the figure, not shown rectangular piece of fleece or fabric, which covers the openings 30 and is held by means of elastic clips 38 in place. In order to evenly distribute the outflow of air into the second distribution chamber 31 through the openings 32, a fleece or fabric may also be attached to these.
Fig. 6 zeigt ausschnittweise einen horizontalen Schnitt durch die Tür 2. Die Tür 2 hat in herkömmlicher Weise eine feste Außenhaut 40, eine feste Innenhaut 41 und eine den dazwischenliegenden Hohlraum ausfüllende Isolationsschicht 42. In dieseFig. 6 shows a section of a horizontal section through the door 2. The door 2 has in a conventional manner a solid outer skin 40, a solid inner skin 41 and a intervening cavity filling insulating layer 42. In this
Isolationsschicht 42 springt ein an der Innenhaut 41 befestigtes, zum Beispiel verklebtes Strangprofil 43 vor. Das Strangprofil 43 hat eine der Außenhaut 40 zugewandte Basis 44, von der, in Breitenrichtung verteilt, vier Stege 45 abstehen. Das Strangprofil 43 begrenzt zusammen mit der Innenhaut 41 drei Kanäle 46, die gemeinsam die Luftleitung 11 bilden. Da diese Luftleitung 11 unmittelbar entlang der Innenhaut 41 verläuft, kann die in ihr zirkulierende Luft, falls sie kälter als der erste Kühlbereich 4 ist, türnahe Regionen des ersten Kühlbereichs 4, die herkömmlicherweise schlechter gekühlt sind als Regionen nahe der Rückwand 8, zusätzlich kühlen und so zu einer besonders gleichmäßigen Temperaturverteilung in dem ersten Kühlbereich 4 beitragen. Insulation layer 42 projects a, attached to the inner skin 41, for example, bonded extruded profile 43. The extruded profile 43 has a base 44 facing the base 44, of which, distributed in the width direction, four webs 45 protrude. The extruded profile 43 bounded together with the inner skin 41 three channels 46, which together form the air duct 11. Since this air duct 11 runs directly along the inner skin 41, the air circulating in it, if colder than the first cooling area 4, can additionally cool near-door regions of the first cooling area 4, which are conventionally cooled worse than regions near the rear wall 8 thus contribute to a particularly uniform temperature distribution in the first cooling area 4.

Claims

Patentansprüche claims
1. Kältegerät mit einem ersten Kühlfach (6), dem von einem Ventilator zwangsweise umgewälzte Kaltluft über wenigstens eine Luftzufuhröffnung (37) zugeführt und über eine Luftabführöffnung (33) abtransportiert wird, dadurch gekennzeichnet, dass der erste Kühlbereich (6) durch eine erste Scheidewand (29) unterteilt ist in eine Lagerzone und eine Luftverteilerzone (27, 31), in welche Luftzufuhr - und1. Refrigerating appliance with a first cooling compartment (6), the cold air forced by a fan over at least one air supply opening (37) and transported via an air discharge opening (33), characterized in that the first cooling area (6) through a first septum (29) is divided into a storage zone and an air distribution zone (27, 31), in which air supply - and
Luftabfuhröffnung (37, 33) münden, und dass in der Scheidewand (29) eine Vielzahl von Löchern (30, 32) für den Übertritt von Luft von der Luftverteilerzone (27, 31) in die Lagerzone und umgekehrt gebildet ist.Air outlet opening (37, 33) open, and in that in the septum (29) a plurality of holes (30, 32) for the passage of air from the air distribution zone (27, 31) formed in the storage zone and vice versa.
2. Kältegerät nach Anspruch 1 , dadurch gekennzeichnet, dass die Luftverteilerzone durch eine dichte zweite Scheidewand (28) in einen stromaufwärtigen Bereich (27), in den die Luftzufuhröffnung (37) mündet und aus dem Luft in den Lagerbereich übertritt, und einen stromabwärtigen Bereich (31) unterteilt ist, in den die Luftabfuhröffnung (33) mündet und in den Luft aus dem Lagerbereich übertritt.2. Refrigerating appliance according to claim 1, characterized in that the air distribution zone through a dense second septum (28) in an upstream region (27) into which the air supply opening (37) opens and from the air into the storage area, and a downstream region (31) is divided, in which the air discharge opening (33) opens and exceeds in the air from the storage area.
3. Kältegerät nach Anspruch 2, dadurch gekennzeichnet, dass die zweite Scheidewand (28) einstückig an die erste Scheidewand (29) mitangeformt ist und mit ihrem freien Ende gegen eine Zwischenwand (5) anliegt, die den ersten Kühlbereich von einem zweiten Kühlbereich (4) wärmeisolierend trennt.3. Refrigerating appliance according to claim 2, characterized in that the second septum (28) integral with the first septum (29) mitangeformt and with its free end against an intermediate wall (5) is applied, the first cooling area of a second cooling area (4 ) separates thermally insulating.
4. Kältegerät nach Anspruch 2 oder Anspruch 3, dadurch gekennzeichnet, dass die zweite Scheidewand (28) als Umlenkelement der in den ersten Kühlbereich einströmenden Kühlluft zu ersten Scheidewand (29) hin dient.4. Refrigerating appliance according to claim 2 or claim 3, characterized in that the second septum (28) serves as a deflecting element of the inflowing into the first cooling area cooling air to first septum (29) out.
5. Kältegerät nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die erste Scheidewand (29) eine Seite der Lagerzone ausfüllt. 5. Refrigerating appliance according to one of claims 1 to 4, characterized in that the first septum (29) fills one side of the storage zone.
6. Kältegerät nach Anspruch 5, dadurch gekennzeichnet, dass die Seite eine Decke der Lagerzone ist.6. Refrigerating appliance according to claim 5, characterized in that the side is a ceiling of the storage zone.
7. Kältegerät nach Anspruch 6, dadurch gekennzeichnet, dass die Lagerzone einen oben offenen Auszugkasten (7) enthält, dessen offene Seite von der ersten7. Refrigerating appliance according to claim 6, characterized in that the storage zone includes an open-topped drawer (7) whose open side from the first
Scheidewand (29) abgedeckt ist.Septum (29) is covered.
8. Kältegerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass von Luftzufuhr- und Luftabfuhröffnung (37, 33) eine an einen in der Rückwand des Kältegeräts geführten Kanal (24) angeschlossen ist und die andere einer Endöffnung eines in der Tür (2) des Kältegeräts geführten Kanals (11) zugewandt ist.8. Refrigerating appliance according to one of the preceding claims, characterized in that of air supply and air discharge opening (37, 33) is guided to a guided in the rear wall of the refrigerator duct (24) and the other an end opening of a in the door (2) the refrigeration device guided channel (11) faces.
9. Kältegerät nach Anspruch 8, dadurch gekennzeichnet, dass der in der Rückwand (8) geführte Kanal (24) an die Luftzufuhröffnung (37) angeschlossen ist.9. Refrigerating appliance according to claim 8, characterized in that in the rear wall (8) guided channel (24) to the air supply opening (37) is connected.
10. Kältegerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es einen zweiten Kühlbereich (4) enthält, der durch eine isolierende Zwischenwand (5) von dem ersten Kühlbereich (6) getrennt ist, und dass die Zwischenwand (5) die Tür (2) über eine Dichtung (34) berührt.10. Refrigerating appliance according to one of the preceding claims, characterized in that it comprises a second cooling area (4) which is separated by an insulating partition (5) from the first cooling area (6), and that the intermediate wall (5) the door ( 2) touched by a seal (34).
11. Kältegerät nach 8 und Anspruch 10, dadurch gekennzeichnet, dass der in der Tür (2) geführte Kanal (11) an eine Innenhaut (41) der Tür (2) angrenzt.11. Refrigerating appliance according to 8 and claim 10, characterized in that in the door (2) guided channel (11) adjacent to an inner skin (41) of the door (2).
12. Kältegerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass an der ersten Scheidewand (29) ein Blatt eines luftdurchlässigen Fasermaterials angebracht ist.12. Refrigerating appliance according to one of the preceding claims, characterized in that on the first septum (29) a sheet of air-permeable fiber material is attached.
13. Kältegerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die erste Scheidewand (29) lösbar angeordnet ist. 13. Refrigerating appliance according to one of the preceding claims, characterized in that the first septum (29) is detachably arranged.
EP06725520.8A 2005-05-10 2006-04-03 Refrigerating device with cooling of circulating air Not-in-force EP1866584B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005021560A DE102005021560A1 (en) 2005-05-10 2005-05-10 Refrigeration unit with circulating air cooling
PCT/EP2006/061278 WO2006120086A1 (en) 2005-05-10 2006-04-03 Refrigerating device with cooling of circulating air

Publications (2)

Publication Number Publication Date
EP1866584A1 true EP1866584A1 (en) 2007-12-19
EP1866584B1 EP1866584B1 (en) 2019-03-13

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EP06725520.8A Not-in-force EP1866584B1 (en) 2005-05-10 2006-04-03 Refrigerating device with cooling of circulating air

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US (1) US8789386B2 (en)
EP (1) EP1866584B1 (en)
CN (1) CN101171476B (en)
DE (1) DE102005021560A1 (en)
RU (1) RU2406947C2 (en)
WO (1) WO2006120086A1 (en)

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US8789386B2 (en) 2014-07-29
RU2007136724A (en) 2009-06-20
US20090288441A1 (en) 2009-11-26
RU2406947C2 (en) 2010-12-20
EP1866584B1 (en) 2019-03-13
WO2006120086A1 (en) 2006-11-16
DE102005021560A1 (en) 2006-11-16
CN101171476B (en) 2010-12-08
CN101171476A (en) 2008-04-30

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