EP2210051B1 - Electric refrigerator - Google Patents

Electric refrigerator Download PDF

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Publication number
EP2210051B1
EP2210051B1 EP08848843A EP08848843A EP2210051B1 EP 2210051 B1 EP2210051 B1 EP 2210051B1 EP 08848843 A EP08848843 A EP 08848843A EP 08848843 A EP08848843 A EP 08848843A EP 2210051 B1 EP2210051 B1 EP 2210051B1
Authority
EP
European Patent Office
Prior art keywords
air channel
cover plate
outlet openings
air
air outlet
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.)
Active
Application number
EP08848843A
Other languages
German (de)
French (fr)
Other versions
EP2210051A2 (en
Inventor
Yufa Bai
Yunzhen Guo
Alexander Rupp
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
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Publication of EP2210051A2 publication Critical patent/EP2210051A2/en
Application granted granted Critical
Publication of EP2210051B1 publication Critical patent/EP2210051B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • 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
    • 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
    • F25D2317/065—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
    • F25D2317/0651—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 bottom
    • 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
    • F25D2317/067—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 air ducts
    • 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
    • F25D2317/067—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 air ducts
    • F25D2317/0672—Outlet ducts
    • 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
    • F25D2317/0681—Details thereof

Definitions

  • This invention extends to an electric refrigerator and more particularly relates to the air duct system of an electric refrigerator.
  • Electric refrigerators particularly domestic electric refrigerators using a blown air cooling system
  • This air duct system comprises an air duct cover plate resting on the rear heat insulation wall of cold storage room or. Freezer is mounted, an evaporator, which is mounted in the space between the air duct cover plate and heat insulation wall, and a fan, which is attached to the upper or lower end of the evaporator.
  • Freezer is mounted
  • an evaporator which is mounted in the space between the air duct cover plate and heat insulation wall
  • a fan which is attached to the upper or lower end of the evaporator.
  • the Luftkanalabdeckplatte some openings are attached. The rotation of the fan causes the cooled by the evaporator air flow from these openings in the cold storage room or freezer space is performed, whereby the cooling of the articles stored therein is realized.
  • the US patent application US2006 / 0070395 A1 discloses a conventional electric refrigerator with an air duct system.
  • the fan In the air duct system of this refrigerator, the fan is arranged vertically above the evaporator. Due to the rather large volume of the fan, the motor part of the fan is embedded in the heat insulating wall, which reduces the thickness of the heat insulating layer at this point, which adversely affects keeping the temperature of the cold storage room in the refrigerator.
  • the publication GB 2 201 500 A shows a refrigerator with an evaporator chamber, in which an evaporator is arranged. Above the evaporator, a fan mounted perpendicular to the evaporator is formed, which blows cool air into the interior of the refrigerator.
  • the publication JP 2002 115963 A shows a fridge with a freezer, a vegetable compartment and a freezer compartment, which can be pulled out of the fridge like a drawer.
  • the publication EP 0 651 216 A1 shows a household refrigerator consisting of a heat-insulating, a refrigerator enclosing housing.
  • the object of this invention is to provide an electric refrigerator having an air duct system with which energy efficiency can be increased.
  • an electric refrigerator of one embodiment of this invention comprises a cabinet body having an internal receiving space, a door movably connected to the cabinet body for closing this internal receiving space, and an air duct system mounted on the heat insulating rear wall of the cabinet body, said air duct system including an air duct cover plate Air outlet openings, one mounted between Luftkanalabdeckplatte and heat insulation rear wall mounted evaporator and a fan.
  • the fan is mounted horizontally above the evaporator.
  • the air outlet openings on the Heilkanalabdeckplatte are mounted obliquely. The from the Fan-induced airflow blows at an angle obliquely to the Lucaskanalabdeckplatte up or down in the inner receiving space.
  • the described internal receiving space is the refrigerated storage room or the freezer compartment of the electric refrigerator, wherein the described Heilkanalabdeckplatte is mounted on the heat insulation rear wall of cold storage room or freezer and a lower half part with a relatively wide gap to the heat insulation rear wall and a upper half part with a relatively narrow gap to the heat insulation rear wall comprises.
  • the described evaporator and fan are mounted between the lower half portion of the air duct cover plate and the heat insulation back plate, and the described slanted air outlet openings are mounted on the upper half portion of the air duct cover plate.
  • the described air outlet openings on the shipskanalabdeckplatte have at the opening inwardly inclined tongue parts, whereby obliquely upward sloping air outlet openings are formed.
  • the described air outlet openings on the Lucaskanalabdeckplatte have at the opening to the outside oblique tongue parts, whereby obliquely downward sloping air outlet openings are formed.
  • the benefit of this invention is that oblique air outlets are used, thus preventing the airflow from being blown directly outside the door of the refrigerator, thereby reducing energy losses.
  • illustration 1 shows a three-dimensional schematic of an electric refrigerator of this invention.
  • Figure 2 shows a schematic representation of the air duct system of the cold storage room of the refrigerator illustration 1 ,
  • Figure 3 shows a schematic representation of the air duct system of the freezer compartment of the refrigerator illustration 1 ,
  • an electric refrigerator of one embodiment of this invention comprises a cabinet body 1 formed by a heat-insulated housing, this cabinet body being located above a cold storage room 2 (see FIG Fig. 2 ) and a freezer compartment 3 (see Fig. 3 ), which are arranged side by side, has.
  • the cold storage room 2 and the freezer compartment 3 together form the inner receiving space of the cabinet body 1.
  • a cold storage room door 4 for closing the cold storage room 2.
  • the freezer compartment is a freezer compartment door 5 for closing the freezer compartment 3.
  • On the freezer compartment door 5 is located in Freezer compartment, the water and ice dispensing opening 50. The pieces of ice produced by the automatic ice cream maker can be dispensed through this water and ice dispensing opening 50.
  • the cold storage room 2 has a formed from heat insulating material heat insulation rear wall 10.
  • the air duct system of the cold storage space is attached on the heat insulation rear wall 10.
  • This air duct system comprises the Luftkanalabdeckplatte 60, the evaporator 63 of the cold storage room and the fan 64 of the cold storage room.
  • Between the Heilkanalabdeckplatte 60 and the heat insulation back wall is a certain gap.
  • the Heilkanalabdeckplatte comprises a lower half portion 61 with a relatively large distance from the heat insulation rear wall and an upper half portion 62 with a relatively small distance from the heat insulation rear wall.
  • the design of the lower half portion 61 with a relatively large gap serves to have sufficient space for receiving the evaporator 63 of the cold storage room available.
  • the design of the upper half part 62 with a relatively small gap allows on the one hand to provide the cold storage room with a larger usable space, and on the other hand to let the fan 64 of the cold storage room driven air flow flow even more concentrated in relatively small space.
  • the fan 64 is mounted horizontally above the evaporator 63 of the cold storage room.
  • the horizontally mounted fan allows the air flow, without having to rebound, be sucked through the evaporator 63 of the cooling storage space and blown directly to the upper half portion 62 of the Lucaskanalabdeckplatte 60.
  • On the upper half portion 62 of the Heilkanalabdeckplatte 60 are directed to the cooling storage room 2 air outlet openings 620.
  • the air outlet openings 620 are provided with an inclined tongue portion 622.
  • the tongue portion 622 is bent inwardly relative to the air channel cover plate 60.
  • 620 forms at the points of the air outlet openings above oblique angle.
  • the blown from the air outlet openings 620 air flow blows after passing through the guide of the tongue portion 622 in an upward oblique direction in the cold storage room. 2
  • the structure of the air duct system of the freezer compartment 3 is similar to the structure of the air duct system of the cold storage room 2 in Figure 2 , The difference is as follows: Since the top of the freezer compartment 3 is equipped with an automatic ice maker 24, an upwardly directed air outlet opening 724 is provided at the upper end of the upper half portion 72 of the air duct cover plate 70. The air flow which passes through this air outlet opening 724 can be guided into the automatic ice machine 24 and used especially for the preparation of ice chips.
  • the above is a relatively optimal embodiment of this invention.
  • General technical personnel in this field can also adapt the above procedure in a suitable manner, on the basis of specific requirements, without the hassle of creative work.
  • the obliquely upwardly directed air flow which is led inwardly obliquely from the tongue parts of the air outlet openings on the air duct cover plate of this embodiment, can also be adapted such that the tongue parts lead the obliquely downwardly directed air flow obliquely, if the effect is achieved, that the airflow is blown out obliquely.
  • these suitable adaptations should be within the scope of the claims of this utility model.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The invention relates to an electric refrigerator comprising a body provided with an inner receiving compartment, a door that is connected to the body in a mobile manner and is used to close the inner receiving compartment, and an air channel system applied to the heat insulation rear wall. Said air channel system comprises a covering plate provided with air outlets, an evaporator arranged between the air channel covering plate and the heat insulation rear wall, and a ventilator. The ventilator is applied horizontally above the evaporator, the air outlets are applied obliquely to the air channel covering plate, and the air flow generated by the ventilator is blown obliquely at an angle to the air channel covering plate, upwards or downwards in the inner receiving compartment.

Description

[Technologisches Gebiet][Technological area]

Diese Erfindung erstreckt sich auf einen elektrischen Kühlschrank und bezieht sich insbesondere auf das Luftkanalsystem eines elektrischen Kühlschranks.This invention extends to an electric refrigerator and more particularly relates to the air duct system of an electric refrigerator.

[Technologischer Hintergrund][Technological background]

Elektrische Kühlschränke, insbesondere elektrische Haushaltskühlschränke, die ein Blasluftkühlsystem verwenden, sind auf der Rückwand des Kühllagerraums und des Gefrierraums des Kühlschranks in der Regel mit einem Luftkanalsystem ausgestattet. Dieses Luftkanalsystem umfasst eine Luftkanaldeckplatte, die auf der hinteren Wärmeisolationswand von Kühllagerraum oder. Gefrierraum montiert ist, einen Verdampfer, der im Zwischenraum zwischen Luftkanaldeckplatte und Wärmeisolationswand angebracht ist, sowie einen Ventilator, der am oberen oder unteren Ende des Verdampfers angebracht ist. Auf der Luftkanalabdeckplatte werden einige Öffnungen angebracht. Das Rotieren des Ventilators führt dazu, dass der durch den Verdampfer gekühlte Luftstrom aus diesen Öffnungen in den Kühllagerraum oder Gefrierraum geführt wird, womit die Kühlung der darin gelagerten Gegenstände realisiert wird.Electric refrigerators, particularly domestic electric refrigerators using a blown air cooling system, are typically provided with an air duct system on the rear wall of the cold storage room and the freezer compartment of the refrigerator. This air duct system comprises an air duct cover plate resting on the rear heat insulation wall of cold storage room or. Freezer is mounted, an evaporator, which is mounted in the space between the air duct cover plate and heat insulation wall, and a fan, which is attached to the upper or lower end of the evaporator. On the Luftkanalabdeckplatte some openings are attached. The rotation of the fan causes the cooled by the evaporator air flow from these openings in the cold storage room or freezer space is performed, whereby the cooling of the articles stored therein is realized.

Der US-Patentantrag US2006/0070395 A1 offenbart einen herkömmlichen elektrischen Kühlschrank mit einem Luftkanalsystem. Im Luftkanalsystem dieses Kühlschranks ist der Ventilator senkrecht oberhalb des Verdampfers angeordnet. Aufgrund des recht großen Volumens des Ventilators ist der Motorteil des Ventilators in die Wärmeisolationswand eingebettet, wodurch sich die Dicke der Wärmeisolationsschicht an dieser Stelle verringert, was sich ungünstig auf das Halten der Temperatur des Kühllagerraums im Kühlschrank auswirkt. Der US-Patentantrag US2007/0157646 A1 der einen Kühlschrank mit sämtlichen Merkmalen des Oberbegriffs des Anspruchs 1 zeigt, offenbart einen weiteren verbesserten elektrischen Kühlschrank mit einem Luftkanalsystem. Der Ventilator im Luftkanalsystem dieses Kühlschranks wurde dergestalt verändert, dass er waagerecht oberhalb desThe US patent application US2006 / 0070395 A1 discloses a conventional electric refrigerator with an air duct system. In the air duct system of this refrigerator, the fan is arranged vertically above the evaporator. Due to the rather large volume of the fan, the motor part of the fan is embedded in the heat insulating wall, which reduces the thickness of the heat insulating layer at this point, which adversely affects keeping the temperature of the cold storage room in the refrigerator. The US patent application US2007 / 0157646 A1 Fig. 1, which shows a refrigerator with all the features of the preamble of claim 1, discloses another improved electric refrigerator with an air duct system. The fan in the air duct system of this refrigerator has been modified so that it is horizontal above the

Verdampfers angebracht ist. Auf diese Weise wurde der Nachteil des Ventilators in US2006/0070395 A1 überwunden. Der gemeinsame Nachteil dieser beiden amerikanischen Patentanträge besteht jedoch in Folgendem: Die Öffnungen auf der Luftkanalabdeckplatte sind senkrecht zu den Luftkanälen angebracht, was dazu führt, das der kalte Luftstrom in senkrechter Richtung zur Tür des Kühllagerraums hinausgeführt wird. Wenn sich die Tür des Kühllagerraums in geöffneter Stellung befindet, wird der kalte Luftstrom direkt vom Inneren des Kühllagerraums nach außerhalb des Kühllagerraums geblasen, wodurch sich die Energieverluste des Kühllagerraums erhöhen.Evaporator is attached. In this way, the disadvantage of the fan was in US2006 / 0070395 A1 overcome. The common drawback of these two US patent applications, however, is as follows: the openings on the air duct cover plate are mounted perpendicular to the air ducts, resulting in the cold air flow being directed out in the direction perpendicular to the door of the cold storage room. When the door of the cold storage room is in the open position, the cold airflow is blown directly from the interior of the cold storage room to the outside of the cold storage room, thereby increasing the energy losses of the cold storage room.

Die Offenlegungsschrift GB 2 201 500 A zeigt einen Kühlschrank mit einem Verdampferraum, in welchem ein Verdampfer angeordnet ist. Oberhalb des Verdampfers ist ein senkrecht zu dem Verdampfer angebrachter Ventilator gebildet, welcher kühle Luft in den Innenraum des Kühlschranks bläst.The publication GB 2 201 500 A shows a refrigerator with an evaporator chamber, in which an evaporator is arranged. Above the evaporator, a fan mounted perpendicular to the evaporator is formed, which blows cool air into the interior of the refrigerator.

Die Offenlegungsschrift JP 2002 115963 A zeigt einen Kühlschrank mit einem Eisfach, einem Gemüsefach und einem Gefrierfach, welche wie eine Schublade aus dem Kühlschrank herausgezogen werden können.The publication JP 2002 115963 A shows a fridge with a freezer, a vegetable compartment and a freezer compartment, which can be pulled out of the fridge like a drawer.

Die Offenlegungsschrift EP 0 651 216 A1 zeigt einen Haushaltskühlschrank bestehend aus einem wärmeisolierenden, einen Kühlraum einfassenden Gehäuse.The publication EP 0 651 216 A1 shows a household refrigerator consisting of a heat-insulating, a refrigerator enclosing housing.

[Inhalt der Erfindung][Content of the invention]

Das Ziel dieser Erfindung besteht darin, einen elektrischen Kühlschrank bereitzustellen, der über ein Luftkanalsystem verfügt, mit dem die Energieeffizienz erhöht werden kann.The object of this invention is to provide an electric refrigerator having an air duct system with which energy efficiency can be increased.

Zur Realisierung des genannten Ziels der Erfindung umfasst ein elektrischer Kühlschrank einer Ausführungsweise dieser Erfindung einen Schrankkörper mit einem inneren Aufnahmeraum, eine beweglich mit dem Schrankkörper verbundene Tür zum Verschließen dieses inneren Aufnahmeraums sowie ein auf der Wärmeisolationsrückwand des Schrankkörpers angebrachtes Luftkanalsystem, wobei dieses Luftkanalsystem eine Luftkanalabdeckplatte mit Luftaustrittsöffnungen, einen zwischen Luftkanalabdeckplatte und Wärmeisolationsrückwand angebrachten Verdampfer sowie einen Ventilator umfasst. Dabei ist der Ventilator waagerecht oberhalb des Verdampfers angebracht. Die Luftaustrittsöffnungen auf der Luftkanalabdeckplatte sind schräg angebracht. Der vom Ventilator bewirkte Luftstrom bläst mit einem Winkel schräg zur Luftkanalabdeckplatte nach oben oder nach unten in den inneren Aufnahmeraum.To realize the above object of the invention, an electric refrigerator of one embodiment of this invention comprises a cabinet body having an internal receiving space, a door movably connected to the cabinet body for closing this internal receiving space, and an air duct system mounted on the heat insulating rear wall of the cabinet body, said air duct system including an air duct cover plate Air outlet openings, one mounted between Luftkanalabdeckplatte and heat insulation rear wall mounted evaporator and a fan. The fan is mounted horizontally above the evaporator. The air outlet openings on the Luftkanalabdeckplatte are mounted obliquely. The from the Fan-induced airflow blows at an angle obliquely to the Luftkanalabdeckplatte up or down in the inner receiving space.

Als eine weitere Verbesserung dieser Erfindung handelt es sich bei dem beschriebenen inneren Aufnahmeraum um den Kühllagerraum oder den Gefrierraum des elektrischen Kühlschranks, wobei die beschriebene Luftkanalabdeckplatte auf der Wärmeisolationsrückwand von Kühllagerraum oder Gefrierraum angebracht ist und einen unteren halben Teil mit relativ breitem Zwischenraum zur Wärmeisolationsrückwand sowie einen oberen halben Teil mit relativ schmalem Zwischenraum zur Wärmeisolationsrückwand umfasst.As a further improvement of this invention, the described internal receiving space is the refrigerated storage room or the freezer compartment of the electric refrigerator, wherein the described Luftkanalabdeckplatte is mounted on the heat insulation rear wall of cold storage room or freezer and a lower half part with a relatively wide gap to the heat insulation rear wall and a upper half part with a relatively narrow gap to the heat insulation rear wall comprises.

Als eine weitere Verbesserung dieser Erfindung sind der beschriebene Verdampfer und der Ventilator zwischen dem unteren halben Teil der Luftkanalabdeckplatte und der Wärmeisolationsrückwand angebracht und die beschriebenen schräg angebrachten Luftaustrittsöffnungen auf dem oberen halben Teil der Luftkanalabdeckplatte angebracht.As a further improvement of this invention, the described evaporator and fan are mounted between the lower half portion of the air duct cover plate and the heat insulation back plate, and the described slanted air outlet openings are mounted on the upper half portion of the air duct cover plate.

Als eine weitere Verbesserung dieser Erfindung verfügt der obere Teil der Luftkanalabdeckplatte im Gefrierraum über nach oben gerichtete Luftaustrittsöffnungen, wobei der aus diesen Luftaustrittsöffnungen geblasene Luftstrom in die automatische Eismaschine des Gefrierraums geführt wird.As a further improvement of this invention, the upper part of the Luftkanalabdeckplatte in the freezer compartment via upward air outlet openings, wherein the blown from these air outlet openings air flow is fed into the automatic ice maker of the freezer compartment.

Als eine weitere Verbesserung dieser Erfindung verfügen die beschriebenen Luftaustrittsöffnungen auf der Luftkanalabdeckplatte über an der Öffnung nach innen schräge Zungenteile, wodurch nach oben schräge Luftaustrittsöffnungen gebildet werden.As a further improvement of this invention, the described air outlet openings on the Luftkanalabdeckplatte have at the opening inwardly inclined tongue parts, whereby obliquely upward sloping air outlet openings are formed.

Als eine weitere Verbesserung dieser Erfindung verfügen die beschriebenen Luftaustrittsöffnungen auf der Luftkanalabdeckplatte über an der Öffnung nach außen schräge Zungenteile, wodurch nach unten schräge Luftaustrittsöffnungen gebildet werden.As a further improvement of this invention, the described air outlet openings on the Luftkanalabdeckplatte have at the opening to the outside oblique tongue parts, whereby obliquely downward sloping air outlet openings are formed.

Der Nutzeffekt dieser Erfindung besteht darin, dass schräge Luftaustrittsöffnungen verwendet werden, womit verhindert wird, dass der Luftstrom direkt nach außerhalb der Tür des Kühlschranks geblasen wird, wodurch Energieverluste verringert werden.The benefit of this invention is that oblique air outlets are used, thus preventing the airflow from being blown directly outside the door of the refrigerator, thereby reducing energy losses.

[Kurze Erläuterung der Abbildungen][Brief explanation of the figures]

Abbildung 1 zeigt ein dreidimensionales Schema eines elektrischen Kühlschranks dieser Erfindung. illustration 1 shows a three-dimensional schematic of an electric refrigerator of this invention.

Abbildung 2 zeigt eine schematische Darstellung des Luftkanalsystems des Kühllagerraums des Kühlschranks aus Abbildung 1. Figure 2 shows a schematic representation of the air duct system of the cold storage room of the refrigerator illustration 1 ,

Abbildung 3 zeigt eine schematische Darstellung des Luftkanalsystems des Gefrierraums des Kühlschranks aus Abbildung 1. Figure 3 shows a schematic representation of the air duct system of the freezer compartment of the refrigerator illustration 1 ,

[Konkrete Ausführungsweise][Specific execution]

Wie in Abbildung 1 dargestellt, umfasst ein elektrischer Kühlschrank einer Ausführungsweise dieser Erfindung einen Schrankkörper 1, der von einem wärmeisolierten Gehäuse gebildet wird, wobei dieser Schrankkörper über einen Kühllagerraum 2 (siehe Abb. 2) und einen Gefrierraum 3 (siehe Abb. 3), die nebeneinander angeordnet sind, verfügt. Der Kühllagerraum 2 und der Gefrierraum 3 bilden gemeinsam den inneren Aufnahmeraum des Schrankkörpers 1. Am Kühllagerraum 2 befindet sich eine Kühllagerraumtür 4 zum Verschließen des Kühllagerraums 2. Am Gefrierraum befindet sich eine Gefrierraumtür 5 zum Verschließen des Gefrierraums 3. Auf der Gefrierraumtür 5 befindet sich im Gefrierraum die Wasser- und Eisausgabeöffnung 50. Die von der automatischen Eismaschine produzierten Eisstückchen können durch diese Wasser- und Eisausgabeöffnung 50 ausgegeben werden.As in illustration 1 1, an electric refrigerator of one embodiment of this invention comprises a cabinet body 1 formed by a heat-insulated housing, this cabinet body being located above a cold storage room 2 (see FIG Fig. 2 ) and a freezer compartment 3 (see Fig. 3 ), which are arranged side by side, has. The cold storage room 2 and the freezer compartment 3 together form the inner receiving space of the cabinet body 1. At the cold storage room 2 is a cold storage room door 4 for closing the cold storage room 2. The freezer compartment is a freezer compartment door 5 for closing the freezer compartment 3. On the freezer compartment door 5 is located in Freezer compartment, the water and ice dispensing opening 50. The pieces of ice produced by the automatic ice cream maker can be dispensed through this water and ice dispensing opening 50.

Wie in Abbildung 2 dargestellt, verfügt der Kühllagerraum 2 über eine aus Wärmeisolationsmaterial gebildete Wärmeisolationsrückwand 10. Auf der Wärmeisolationsrückwand 10 ist das Luftkanalsystem des Kühllagerraums angebracht. Dieses Luftkanalsystem umfasst die Luftkanalabdeckplatte 60, den Verdampfer 63 des Kühllagerraums sowie den Ventilator 64 des Kühllagerraums. Zwischen der Luftkanalabdeckplatte 60 und der Wärmeisolationsrückwand befindet sich ein bestimmter Zwischenraum. Die Luftkanalabdeckplatte umfasst einen unteren halben Teil 61 mit relativ großem Zwischenabstand zur Wärmeisolationsrückwand und einen oberen halben Teil 62 mit relativ geringem Zwischenabstand zur Wärmeisolationsrückwand. Die Gestaltung des unteren halben Teils 61 mit einem relativ großen Zwischenraum dient dazu, ausreichenden Raum für die Aufnahme des Verdampfers 63 des Kühllagerraums zur Verfügung zu haben. Die Gestaltung des oberen halben Teils 62 mit einem relativ geringen Zwischenraum ermöglicht es zum einen, den Kühllagerraum mit größerem nutzbaren Raum zu versehen, und zum anderen, den vom Ventilator 64 des Kühllagerraums angetriebenen Luftstrom noch konzentrierter im relativ kleinen Zwischenraum strömen zu lassen. Der Ventilator 64 ist waagerecht oberhalb des Verdampfers 63 des Kühllagerraums angebracht. Der waagerecht angebrachte Ventilator ermöglicht es dem Luftstrom, ohne dass er abprallen muss, durch den Verdampfer 63 des Kühllageraums angesaugt und direkt zum oberen halben Teil 62 der Luftkanalabdeckplatte 60 geblasen zu werden. Auf dem oberen halben Teil 62 der Luftkanalabdeckplatte 60 befinden sich zum Kühllagerraum 2 gerichtete Luftaustrittsöffnungen 620. Die Luftaustrittsöffnungen 620 sind mit einem schrägen Zungenteil 622 versehen. Das Zungenteil 622 ist relativ zur Luftkanalabdeckplatte 60 nach innen gebogen. Dadurch bildet sich an den Stellen der Luftaustrittsöffnungen 620 ein nach oben schräger Winkel. Der von den Luftaustrittsöffnungen 620 ausgeblasene Luftstrom bläst nach Durchlaufen der Führung des Zungenteils 622 in nach oben schräger Richtung in den Kühllagerraum 2.As in Figure 2 illustrated, the cold storage room 2 has a formed from heat insulating material heat insulation rear wall 10. On the heat insulation rear wall 10, the air duct system of the cold storage space is attached. This air duct system comprises the Luftkanalabdeckplatte 60, the evaporator 63 of the cold storage room and the fan 64 of the cold storage room. Between the Luftkanalabdeckplatte 60 and the heat insulation back wall is a certain gap. The Luftkanalabdeckplatte comprises a lower half portion 61 with a relatively large distance from the heat insulation rear wall and an upper half portion 62 with a relatively small distance from the heat insulation rear wall. The design of the lower half portion 61 with a relatively large gap serves to have sufficient space for receiving the evaporator 63 of the cold storage room available. The design of the upper half part 62 with a relatively small gap allows on the one hand to provide the cold storage room with a larger usable space, and on the other hand to let the fan 64 of the cold storage room driven air flow flow even more concentrated in relatively small space. The fan 64 is mounted horizontally above the evaporator 63 of the cold storage room. The horizontally mounted fan allows the air flow, without having to rebound, be sucked through the evaporator 63 of the cooling storage space and blown directly to the upper half portion 62 of the Luftkanalabdeckplatte 60. On the upper half portion 62 of the Luftkanalabdeckplatte 60 are directed to the cooling storage room 2 air outlet openings 620. The air outlet openings 620 are provided with an inclined tongue portion 622. The tongue portion 622 is bent inwardly relative to the air channel cover plate 60. As a result, 620 forms at the points of the air outlet openings above oblique angle. The blown from the air outlet openings 620 air flow blows after passing through the guide of the tongue portion 622 in an upward oblique direction in the cold storage room. 2

Im Kühllagerraum 2 sind einige Ablageschalen 20 sowie ein Schubfach 22 angebracht. Der aus den Luftaustrittsöffnungen 620 schräg ausgeblasene Luftstrom stößt auf die Decke sowie die Ablageschalen 20 und das Schubfach 22 des Kühllagerraums und prallt dann ab. Wenn sich die Kühllagerraumtür 4 in geschlossenem Zustand befindet, wird sich der Luftstrom entlang der Richtung der Tür nach unten bewegen und zuletzt durch die Rückluftöffnung 610 auf dem unteren halben Teil der Luftkanalabdeckplatte 60 in den Verdampfer 63 des Kühllagerraums zurückströmen. Wenn sich die Kühllagerraumtür 4 in geöffnetem Zustand befindet, wird der Luftstrom nicht direkt nach außerhalb der Tür strömen, da die Strömungsrichtung des Luftstroms im Kühllagerraum 2 nicht direkt auf die Kühllagerraumtür 4 gerichtet ist, wodurch sich die Energieverluste verringem.In the cold storage room 2 some trays 20 and a drawer 22 are attached. The air flow obliquely blown out of the air outlet openings 620 impinges on the ceiling and the storage trays 20 and the drawer 22 of the cold storage room and then bounces off. When the cold storage room door 4 is in the closed state, the airflow will move down the direction of the door and finally back through the return air opening 610 on the lower half of the air duct cover plate 60 into the evaporator 63 of the cold storage room. When the cold storage room door 4 is in the open state, the air flow will not flow directly outside the door because the flow direction of the air flow in the cold storage room 2 is not directed directly to the cold storage room door 4, thereby reducing energy losses.

Wie in Abbildung 3 dargestellt, ähnelt der Aufbau des Luftkanalsystems des Gefrierraums 3 dem Aufbau des Luftkanalsystems des Kühllagerraums 2 in Abbildung 2. Der Unterschied besteht in Folgendem: Da der Oberteil des Gefrierraums 3 mit einer automatischen Eismaschine 24 ausgestattet ist, ist am oberen Ende des oberen halben Teils 72 der Luftkanalabdeckplatte 70 eine nach oben gerichtete Luftaustrittsöffnung 724 angebracht. Der Luftstrom, der diese Luftaustrittsöffnung 724 durchläuft, kann in die automatische Eismaschine 24 geführt und speziell zur Bereitung von Eisstückchen verwendet werden.As in Figure 3 illustrated, the structure of the air duct system of the freezer compartment 3 is similar to the structure of the air duct system of the cold storage room 2 in Figure 2 , The difference is as follows: Since the top of the freezer compartment 3 is equipped with an automatic ice maker 24, an upwardly directed air outlet opening 724 is provided at the upper end of the upper half portion 72 of the air duct cover plate 70. The air flow which passes through this air outlet opening 724 can be guided into the automatic ice machine 24 and used especially for the preparation of ice chips.

Vorstehend handelt.es sich um eine relativ optimale Ausführungsweise dieser Erfindung. Allgemeines technisches Personal aus diesem Gebiet kann auch auf der Grundlage konkreter Erfordernisse ohne den Aufwand schöpferischer Arbeit die vorstehende Ausführungsweise in geeigneter Weise anpassen. Zum Beispiel kann der schräg nach oben gerichtete Luftstrom, der von den Zungenteilen der Luftaustrittsöffnungen auf der Luftkanalabdeckplatte dieser Ausführungsweise nach innen schräg hinausgeführt wird, auch dergestalt angepasst werden, dass die Zungenteile den schräg nach unten gerichteten Luftstrom schräg hinausführen, sofern die Wirkung erreicht wird, dass der Luftstrom schräg hinausgeblasen wird. Zusammenfassend kann festgestellt werden, dass diese geeigneten Anpassungen innerhalb des Schutzbereichs der Ansprüche dieses Gebrauchsmusters liegen sollen.The above is a relatively optimal embodiment of this invention. General technical personnel in this field can also adapt the above procedure in a suitable manner, on the basis of specific requirements, without the hassle of creative work. For example, the obliquely upwardly directed air flow, which is led inwardly obliquely from the tongue parts of the air outlet openings on the air duct cover plate of this embodiment, can also be adapted such that the tongue parts lead the obliquely downwardly directed air flow obliquely, if the effect is achieved, that the airflow is blown out obliquely. In summary, it can be said that these suitable adaptations should be within the scope of the claims of this utility model.

Claims (6)

  1. Electric refrigerator, including a cabinet body (1) which has an inner receiving space (2, 3), a door (4, 5) movably connected with the cabinet body and serving for closing this inner receiving space, and an air channel system mounted on the thermal insulation rear wall (10), wherein this air channel system comprises a cover plate (60) with air outlet openings (620), an evaporator (63) mounted between the air channel cover plate and the thermal insulation rear wall, and a fan (64), wherein the fan is mounted horizontally above the evaporator, characterised in that the air outlet openings are formed at an inclination on the air channel cover plate and the air flow produced by the fan is blown at an angle obliquely with respect to the air channel cover plate upwardly or downwardly into the inner receiving space.
  2. Electric refrigerator according to claim 1, characterised in that the described inner receiving space is the cooling storage chamber or the freezing chamber of the refrigerator, wherein the described air channel cover plate is mounted on the thermal insulation rear wall of the cooling storage chamber or freezing chamber and comprises a lower half part with a relatively wide intermediate space with respect to the thermal insulation rear wall and an upper half part with a relatively narrow intermediate space with respect to the thermal insulation rear wall.
  3. Electric refrigerator according to claim 2, characterised in that the described evaporator and the fan are mounted between the lower half part of the air channel cover plate and the thermal insulation rear wall and the described obliquely formed air outlet openings are formed on the upper half part of the air channel cover plate.
  4. Electric refrigerator according to claim 3, characterised in that the upper part of the air channel cover plate has upwardly directed air outlet openings in the freezing chamber and the air flow blown out of these air outlet openings is guided into the automatic icemaker of the freezing chamber.
  5. Electric refrigerator according to any one of the preceding claims, characterised in that the described air outlet openings have, on the air channel cover plate, tongue parts inclined inwardly at the opening, whereby upwardly inclined air outlet openings are formed.
  6. Electric refrigerator according to claims 1 to 4, characterised in that the air outlet openings have, on the air channel cover plate, tongue parts inclined outwardly at the opening, whereby downwardly inclined air outlet openings are formed.
EP08848843A 2007-11-12 2008-11-10 Electric refrigerator Active EP2210051B1 (en)

Applications Claiming Priority (2)

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CNU2007200448723U CN201129897Y (en) 2007-11-12 2007-11-12 Refrigerator
PCT/EP2008/065229 WO2009062911A2 (en) 2007-11-12 2008-11-10 Electric refrigerator

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EP2210051A2 EP2210051A2 (en) 2010-07-28
EP2210051B1 true EP2210051B1 (en) 2011-05-11

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AT (1) ATE509246T1 (en)
ES (1) ES2365182T3 (en)
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WO (1) WO2009062911A2 (en)

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CN102393117A (en) * 2011-11-22 2012-03-28 合肥美的荣事达电冰箱有限公司 Refrigerator
CN103851852B (en) * 2013-07-23 2016-08-10 海信（山东）冰箱有限公司 A kind of refrigerator supply air system, refrigerator and air supply method
CN103499174A (en) * 2013-10-23 2014-01-08 合肥华凌股份有限公司 Air duct assembly of air-cooled refrigerator and air-cooled refrigerator with same
CN104329861A (en) * 2013-11-29 2015-02-04 海尔集团公司 Refrigerator
CN103900321B (en) * 2014-04-08 2016-06-29 山东三九制冷设备有限公司 Rapid refrigerating system in refrigerator
CN104976857B (en) * 2015-07-07 2018-10-16 合肥晶弘电器有限公司 The moisture retention structure and refrigerator of a kind of wind cooling refrigerator for single system refrigeration modes
CN106642906A (en) * 2017-02-17 2017-05-10 合肥美菱股份有限公司 Horizontal type frost-free refrigerator
CN106642905A (en) * 2017-02-17 2017-05-10 合肥美菱股份有限公司 Horizontal type frost-free refrigerator
CN106839605A (en) * 2017-03-31 2017-06-13 合肥美菱股份有限公司 A kind of frostless refrigerator air-supply arrangement
CN109990532A (en) * 2017-12-29 2019-07-09 青岛海尔股份有限公司 Refrigerator with door body hothouse
CN108458528B (en) * 2018-03-26 2023-09-22 中国电器科学研究院股份有限公司 Air-cooled refrigerator with uniform temperature distribution
CN108282988B (en) * 2018-03-28 2023-10-13 青岛高测科技股份有限公司 Heat exchange air duct system for electric control cabinet
KR102601887B1 (en) * 2019-02-18 2023-11-15 엘지전자 주식회사 Plants cultivation apparatus
CN110411123B (en) * 2019-07-23 2021-06-11 安徽康佳同创电器有限公司 Refrigerator cold storage air duct device and refrigerator
KR20220007293A (en) * 2020-07-10 2022-01-18 엘지전자 주식회사 refrigerator
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ES2365182T3 (en) 2011-09-23
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EP2210051A2 (en) 2010-07-28
CN101855504A (en) 2010-10-06
ATE509246T1 (en) 2011-05-15
WO2009062911A2 (en) 2009-05-22
RU2010120495A (en) 2011-12-20

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