EP1712857A2 - Réfrigérateur et/ou congélateur - Google Patents

Réfrigérateur et/ou congélateur Download PDF

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Publication number
EP1712857A2
EP1712857A2 EP06007756A EP06007756A EP1712857A2 EP 1712857 A2 EP1712857 A2 EP 1712857A2 EP 06007756 A EP06007756 A EP 06007756A EP 06007756 A EP06007756 A EP 06007756A EP 1712857 A2 EP1712857 A2 EP 1712857A2
Authority
EP
European Patent Office
Prior art keywords
freezer compartment
freezer
evaporator
trough
cooling coils
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06007756A
Other languages
German (de)
English (en)
Inventor
Dieter Dipl-Ing. Siegel
Eugen Dipl.-Ing. Schmid
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.)
Liebherr Hausgeraete Ochsenhausen GmbH
Original Assignee
Liebherr Hausgeraete Ochsenhausen 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 Liebherr Hausgeraete Ochsenhausen GmbH filed Critical Liebherr Hausgeraete Ochsenhausen GmbH
Publication of EP1712857A2 publication Critical patent/EP1712857A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/061—Walls with conduit means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/02—Details of evaporators
    • F25B2339/023—Evaporators consisting of one or several sheets on one face of which is fixed a refrigerant carrying coil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • F25B39/022—Evaporators with plate-like or laminated elements
    • F25B39/024—Evaporators with plate-like or laminated elements with elements constructed in the shape of a hollow panel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators

Definitions

  • the present invention relates to a refrigerator and / or freezer with an inner container having a substantially cubic freezer compartment trough and an evaporator sitting on five sides of the freezer compartment trough.
  • refrigerators and freezers which have a freezer compartment and adegutwanne
  • no costly sealing measures during assembly of the evaporator must be made.
  • the continuous inner container is formed rigid in the transition region between the freezer compartment tray and the refrigerated goods tray,
  • the assembly of the evaporator is difficult due to limited space. Often, only a narrow gap remains between the freezer compartment tub and the refrigerated goods pan. It has therefore been used in such devices with a continuous inner container regularly a U-shaped plate evaporator, which was pushed in the manner of a clip from the back over the freezer compartment, so that the evaporator rests on the rear wall and two opposite side walls of the freezer compartment tub at this.
  • the cooling capacity of such an arrangement is limited.
  • the one-piece, continuous construction of the inner container has sometimes been sacrificed in order to use more efficient evaporators.
  • a separate sheet metal box as the evaporator pan, around which the evaporator tubes were wound, which were then covered with an aluminum foil.
  • This pre-assembled box can be mounted on the previously separated from the refrigerated goods freezer, although then for mounting and sealing the freezer compartment a spray frame is needed and mounting edges remain visible in the inner container. In this respect, this solution is unsatisfactory.
  • the evaporator plate consists of a double-layered metal plate, in which between the interconnected metal plates by curvature of at least one metal plate of the coolant channel is formed.
  • an H-shaped Blechplatinenzuonce is used, which can be brought by folding in the desired five-sided shape.
  • the resulting waste in the production of such H-shaped blanks is relatively large, so that in view of expensive production of such double-layered sheet metal blanks with coolant channels high costs arise.
  • the present invention is therefore an object of the invention to provide an improved refrigerator and / or freezer of the type mentioned above, which avoids the disadvantages of the prior art and the latter further develops in an advantageous manner.
  • the cooling performance of the freezer compartment tub on five sides surrounding evaporator to be achieved without buying this by excessive costs or complex assembly process with visual impairments.
  • an evaporator which does not consist of double-layered Rollbond or Z-Bond based sheet metal blanks which are mounted on different sides of the freezer well, but nevertheless formed in a simple manner as a five-surface evaporator and five-sided mounted on the freezer compartment can be.
  • a tube evaporator with curved tube cooling coils which sits on at least four sides of the freezer compartment tub, is at least partially provided as the evaporator.
  • Such a tube evaporator is much cheaper than an evaporator made of Rollbond or Z-Bondplatinen.
  • he can better on various freezer trough forms, such. B. slightly convex freezer trays to be adjusted.
  • the evaporator may well have an evaporator plate on a roll or Z-bond basis.
  • the invention provides that the cooling coils are not directly seated on the freezer compartment trough but are arranged on metal plates and heat-conductively connected to them, which are flat on the side surfaces the freezer tray sit. As a result, a large heat transfer surface is created between the freezer compartment and the evaporator respectively the metal plates.
  • the cooling coils may optionally be soldered to the metal plates, but in particular be connected by means of a thermal paste in order to ensure a sufficient heat transfer here.
  • a plurality of metal plates are provided, of which preferably none is bent on more than three sides of the freezer compartment tub.
  • two or three freezer compartment sides can be completely covered by a correspondingly bent metal plate.
  • two metal plates may be provided, one of which is bent on three sides and the other on the remaining two sides of the freezer compartment.
  • none of the metal plates is bent on more than three sides of the freezer compartment tub.
  • the side surfaces of the freezer tray are regularly inclined slightly inclined for manufacturing reasons, so that a metal plate that would extend to more than three sides, according to oblique blank pieces needed so that the Metallplattenummantelung the freezer compartment tray is advantageously divided, so to speak on several metal plates.
  • a separate metal plate may be provided for each side surface of the freezer compartment tub.
  • curved metal plates are provided, which may extend on two or three sides of the freezer compartment. This still allows a better fit and less waste to be achieved than with a one-piece metal plate that is bent on five surfaces.
  • the tube forming the cooling coils is meandering in the region of a freezer compartment side to form cooling coils, then led to an adjacent, adjacent freezer compartment side and there again meandering Cooling coils bent. In this way, the tube forming the cooling coils can be guided from side to side of the freezer compartment.
  • the tube-bent cooling coils are serially guided around all surfaces of the freezing compartment tub except for the rear side thereof, namely around its bottom, left side, ceiling and right side.
  • a parallel-connected cooling coil course in which the individual meander sections on the various freezer compartment sides are connected in parallel so that the coolant flows in the manner of a star wiring from a branch point through the meander sections connected in parallel and is brought together again at a node connected downstream becomes.
  • the previously described embodiment with a serially running around the sides of the freezer compartment trough course of the cooling coils has advantages in terms of a simple coil guide.
  • the pipe coils of the pipe evaporator which are bent from the pipe can enclose all five sides of the freezer compartment.
  • a Verdampferplatine on Rollbond- or Z-Bond basis is provided, whose cooling coils are connected between the double-layered sheet metal blanks with the tube-bent cooling coils of the evaporator.
  • the Rollbond or Z-Bond board can be made of a rectangular blank, so that no waste is obtained.
  • the cooling device is designed as a combined refrigerator and freezer, which has achengutwanne and the aforementioned freezer compartment.
  • the five-chamber surrounding the freezer compartment tub tube evaporator is continued on the refrigerated pan.
  • the cooling coils bent from the tube can first be guided around the freezer compartment trough and then guided to the rear wall of the refrigerated goods trough, where the Tube is bent in turn to meandering cooling coils.
  • a combined evaporator for the freezer and the refrigerator compartment of the device is provided.
  • the section of the evaporator on the refrigerated goods possibly also in the manner described above may comprise a metal plate on which the corresponding tube bent cooling coils are heat-conducting, in particular by means of a thermal paste, attached.
  • a continuous inner container may be provided, in which the refrigerated goods tray and the freezer compartment tray are integrally connected to one another without bending joints and buckling edge. Forming dirt edges or visually disturbing joint edges in the area of the freezer tray are thereby eliminated.
  • the device can be designed as a one-door device in which the appliance door extends over both the refrigerated goods container and the freezer compartment.
  • the freezer can here with its opening cross-section with respect to the refrigerated goods to the rear, i. towards the back of the device, be set back.
  • the gap between the freezer compartment trough and the refrigerated goods trough may extend over less than 4/5 of the inner container depth in such a device type.
  • Figure 1 shows a one-door refrigerator and freezer 1, in which a door 2 extends over the entire front and covers both a refrigerated goods 3 and a freezer 4.
  • the freezer compartment 4 is substantially smaller than the refrigerated goods container 3 in a manner known per se and is arranged lying above the latter.
  • the refrigerator and freezer 1 has a continuous inner container 5, which is made in a suitable method of plastic.
  • the inner container 5 is integrally formed in one piece and includes both the freezer compartment 4 defining freezer compartment 6 and the refrigerated goods 3 limitingmégutwanne 7.
  • the freezer compartment 6 is separated from thedegutwanne 7 by an approximately hand-thick gap 8, wherein the Freezer tray 6 is arranged with its opening cross-section of the open front side of the inner container 5 set back to the rear.
  • Said gap 8 between the freezer compartment trough 6 and the refrigerated goods trough 7 extends only about 2/3 to% of the depth of the inner container 5.
  • FIG. 2 shows, a five-area evaporator 9, which is formed on four sides as a tube evaporator with cooling tubes 10 of bent tube, is located on the freezer compartment trough 6 and consists of a rolling or Z-bonding section on the fifth side.
  • FIG. 2 shows the ceiling of the freezer compartment tub 6, on which the tube forming the cooling coils 10 is bent into meandering cooling coils. From the ceiling of the freezer compartment tub 6, the tube forming the cooling coils is then guided to the next, adjacent side of the freezer compartment tub 6, where the tube forming the coolant channel is in turn bent into meandering cooling coils. In a corresponding manner, the tube forming the cooling coils is then guided serially onto the bottom surface and then the second side surface of the freezer compartment trough 6.
  • an evaporator plate 11 is on the basis of Rollbond on the back of the freezer compartment tray 6 instead of bent tube cooling coils or Z-bond base arranged, the cooling coils 12 is connected in series with the bent pipe from cooling coils on the remaining sides of the freezer compartment tray 6.
  • the evaporator 9 furthermore comprises a section on the rear side of the refrigerated goods trough 7.
  • the tube forming the cooling coils is guided from the freezer compartment trough 6 to the rear side of the refrigerated goods trough 7 and in turn bent into meandering cooling coils 10, so that a combined one Freezer and refrigerator compartment evaporator is formed.
  • the coolant channels of the section on thedegutwanne 7 are of course connected to the coolant channels on the freezer compartment tray 6.
  • cooling coils 10 are arranged on metal plates which rest flat on the respective side surface of the freezer compartment trough 6 or the refrigerated goods trough 7 .
  • the cooling coils 10 may be heat-conductively applied, for example by means of a thermal paste on said metal plates.
  • the evaporator 9 is applied by means of adhesive tape or adhesive film on the freezer compartment tray 6 and thedegutwanne 7 and attached thereto. Expediently, the evaporator 9 in the state shown in FIG. 2 applied to the freezer compartment trough 6 and the refrigerated goods trough 7 can then be foamed.
  • the evaporator 9 shown in FIG. 2 can be, in particular, a so-called four-pass evaporator which cools the freezer compartment trough on five surfaces, which enables a significant improvement in energy efficiency and the climate class without additional costs or reduction of costs compared to rolling or Z-bond evaporators.
  • a separation of the freezer compartment from the inner container is avoided by the arrangement.
  • the continuous container has none Parting line between the freezer compartment tray 6 and the refrigerated tray 7, so that no dirt edge can occur and a better appearance is achieved.
  • the advantage is achieved that no costly sealing measures must be made during assembly of the evaporator on the inner container 5.
  • the evaporator 9 is not visible from the interior of the device. In summary, it can therefore be said that cost-effective components create a highly efficient evaporator without disadvantages for the user.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP06007756A 2005-04-14 2006-04-12 Réfrigérateur et/ou congélateur Withdrawn EP1712857A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202005006025 2005-04-14
DE202005008376U DE202005008376U1 (de) 2005-04-14 2005-05-30 Kühl- und/oder Gefriergerät

Publications (1)

Publication Number Publication Date
EP1712857A2 true EP1712857A2 (fr) 2006-10-18

Family

ID=36658858

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06007756A Withdrawn EP1712857A2 (fr) 2005-04-14 2006-04-12 Réfrigérateur et/ou congélateur

Country Status (2)

Country Link
EP (1) EP1712857A2 (fr)
DE (1) DE202005008376U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016208494A1 (de) 2016-05-18 2017-11-23 BSH Hausgeräte GmbH Kältegerät und Verfahren zu dessen Fertigung

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009001063B4 (de) * 2009-02-23 2019-05-23 BSH Hausgeräte GmbH Kältegerät mit mehreren Lagerkammern
DE102017217678A1 (de) 2017-10-05 2019-04-11 BSH Hausgeräte GmbH Innenbehälter für ein Haushaltskältegerät mit spezifischer Engstelle an einer Verlegerinne, sowie Haushaltskältegerät und Verfahren zum Herstellen eines Innenbehälters
DE102017219707A1 (de) 2017-11-07 2019-05-09 BSH Hausgeräte GmbH Innenbehälter für ein Haushaltskältegerät mit einer zur Seite hin offenen Verlegerinne für ein Heizelement, sowie Haushaltskältegerät

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0795726B1 (fr) 1996-03-12 2001-10-10 Liebherr-Hausgeräte Gmbh Evaporateur combiné d'un compartiment de congélation et d'un compartiment de réfrigération d'un réfrigérateur ménager

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0795726B1 (fr) 1996-03-12 2001-10-10 Liebherr-Hausgeräte Gmbh Evaporateur combiné d'un compartiment de congélation et d'un compartiment de réfrigération d'un réfrigérateur ménager

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016208494A1 (de) 2016-05-18 2017-11-23 BSH Hausgeräte GmbH Kältegerät und Verfahren zu dessen Fertigung
WO2017198641A1 (fr) 2016-05-18 2017-11-23 BSH Hausgeräte GmbH Appareil frigorifique et procédé de fabrication dudit appareil

Also Published As

Publication number Publication date
DE202005008376U1 (de) 2006-08-17

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