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
  • F25D23/069—Cooling space dividing partitions
• • 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
  • 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
  • F25D2317/066—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
  • F25D2317/0666—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 freezer
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
  • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
  • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
  • F25D2400/04—Refrigerators with a horizontal mullion

Definitions

• the present invention relates to a refrigeration appliance, in particular a domestic refrigeration appliance, with an upper and a lower storage chamber and accommodated in a partition between the storage chambers, both storage chambers cooling
• inlet openings of an evaporator chamber accommodated in the dividing wall are formed on their front edge and outlet openings on a rear edge.
• Such a refrigerator tends to form a strong temperature stratification, especially in the upper
• a refrigerator according to the preamble of claim 1 is known.
• the air circulation through the evaporator is here driven by a fan mounted in an upper rear corner of the freezer, which sucks air from the freezer and pushes it through the evaporator located in the partition below the freezer.
• the cooled air returns to the freezer compartment via an outlet opening at the front edge of the partition.
• a channel leading to the cooling compartment and closable by a flap is additionally provided on the rear wall of the freezing compartment. When the flap is open, part of the air drawn in by the fan from the freezer flows through the channel into the freezer compartment, and in turn, air from the freezer compartment enters
• the object of the invention is to improve the efficiency of the refrigerating appliance according to the preamble.
• the object is achieved by the inlet side is separated from the colder storage chamber, and limited at the edge of the partition, a gap connecting the two storage chambers.
• Be connected intake passage which has an inlet opening in an upper region of the warmer storage chamber.
• the intake duct In order to use the evaporator as evenly as possible over its entire cross-sectional area, the intake duct should have the same width as the evaporator, at least in a lower area.
• a centrifugal fan can save space in height of the partition between a
• the axis of the centrifugal fan is preferably perpendicular to the outer wall to suck in the axial direction of the intermediate wall air and parallel to the outer wall, about to blow into a along a wall of the colder chamber extending manifold.
• the distribution channel and the intake channel are arranged on the same outer wall of the refrigeration device.
• an airway runs in the partition wall
• the airway extends at least in
• the said outer wall opposite edge of the partition can in
• a heat-insulating partition having an air passage for connecting the two branches provided with a gap-facing side of the partition wall.
• one of the two branches which does not contain the evaporator, may be stiffened by ribs. These are lost
• the evaporator is preferably housed in the lower branch.
• One reason for this may be that, when no air is circulating in the dividing wall with the fan stopped, the upstream branch of the air path isolates the evaporator from the overlying warmer storage chamber.
• a heat-insulating partition wall is provided between the downstream branch and the colder chamber.
• the evaporator is housed in the lower branch, space-saving possible, the branch containing the evaporator to the outer wall make downhill, so that from the evaporator effluent condensate can be brought to the outer wall and discharged via this.
• a light for the lower of the two storage chambers can be arranged in a space-saving manner under a region of the evaporator remote from the outer wall.
• one of the branches when the fan is located at the level of the bulkhead, it is desirable for one of the branches to diverge vertically toward the outside wall to provide a streamlined transition to the fan.
• the evaporator may extend substantially over the entire depth of the dividing wall, but should not have a small height to unnecessarily restrict the volume of the storage chamber. Therefore, a refrigerant line of the evaporator is preferably guided in one layer.
• an illumination (42) for the lower (5) of the two bearing chambers is arranged under a region of the evaporator (16) remote from the outer wall (7).
• the two storage chambers have a common inner container, in which the partition wall is inserted. This facilitates the assembly of the device, since the evaporator, instead of having to be inserted into a narrow gap between the storage chambers, mounted freely between the storage chambers and then with the
• Partition can be clad or pre-assembled with the partition to form an assembly, which is then mounted between the storage chambers.
• Fig. 1 is a schematic vertical section through an inventive
• Fig. 2 is a horizontal section through the refrigerator along the level II-II
• Fig. 3 is a radial fan in a partially sectioned perspective
• FIG. 4 shows a perspective, partially sectioned view of part of a body of the refrigerator according to the invention according to a first embodiment
• Fig. 5 is a view similar to FIG. 4 according to a second embodiment of the
• Fig. 1 shows a vertical section in the depth direction through the housing of a combination refrigerator according to the invention.
• the housing includes an in
• Body 1 comprises in known manner a deep-drawn plastic inner container, a solid outer skin, which may be composed of plates of different materials, as well as a filling the space between the inner container and outer skin
• the partition 3 is at levels 6 of the side walls of the
• a parallel to a rear wall 7 of the body 1 extending wall plate 8 divides from the normal refrigeration compartment 4 from an intake passage 9, which extends from an inlet opening 10 in the vicinity of the ceiling 1 1 of the body 1 extends to the level of the partition wall 3 and covers the rear wall 7 over its entire width.
• a first branch 12 of a hairpin extending through the partition wall 3 connects to the air. This first branch 12 is after by a loadable with refrigerated goods
• the bottom plate 13 delimited from the normal refrigeration compartment 4.
• the bottom plate 13 may e.g. Made of glass, which releases the view into the branch 12, from a solid opaque
• the first branch 12 extends horizontally forward into the immediate vicinity of a front edge 14 of the partition wall 3 and there goes over into a second branch 15, which slopes slightly towards the rear wall 7.
• a front region of constant height of the branch 15 is completely filled by a vane evaporator 16.
• centrifugal fan 18 In a subsequent to the fin evaporator 16 section 17 of the branch 15 whose height increases with increasing approach to a suction port of a mounted on the rear wall 7 centrifugal fan 18 continuously to allow a laminar, low-loss flow of air from the evaporator 16 to the fan 18.
• a rotor 19 of the centrifugal fan 18 is shown in half to show the hidden behind a hat-shaped bottom plate 20 of the rotor 19, fixed to the rear wall 7 motor 21 can.
• a hat-shaped bottom plate 20 of the rotor 19 fixed to the rear wall 7 motor 21 can.
• radially and axially aligned air blades 22 are attached in an edge region of the bottom plate 20 .
• the edges of the air blades 22 which are remote from the base plate 20 may be connected to one another by a ring 23 parallel to the base plate 20.
• Radial inner edges of the air blades 22 and, in the case shown here, an opening 24 of the ring 23 forms the suction opening, via which the fan, when the rotor 19 is in motion, sucks air from the section 17 and in the radial direction, parallel to Rear wall 7, again ejects.
• the diameter of the suction opening corresponds to the maximum height of the portion 17, which reaches this at its rear end.
• the outer diameter 19 of the rotor is slightly smaller than the thickness of the partition wall 3 at its rear edge, so that it finds room between the partition wall 3 and the rear wall 7, without appreciably intervene in the upper branch 12 and the intake passage 9 and without far about the
• FIG. 2 shows a section through the body 1 and the partition wall 3 along a through the lower branch 15 extending, in Fig. 1 with II-II designated cutting plane.
• a wall plate 29 closes in the lateral direction on both sides of the suction port 24 of the centrifugal fan 18, to prevent the ejected from the centrifugal fan 18 air is sucked again.
• the evaporator 16 is fixed between two flanks 26 of the dividing wall 3 filled with insulating foam, pipe bends of the refrigerant line 25 each engaging in a groove of the two flanks 26.
• the refrigerant circulates in the line 25 in opposite directions to the air flow, ie an injection point 27 is located on the rear wall 7 facing the end of
• the width of the portion 17 is here in the depth direction constant to the wall plate 29 behind the radial fan 18 is located.
• the edges 26 could also, as indicated by dashed lines, converge at the level of the portion 17 to the opening 24 of the centrifugal fan 18 out.
• the wall plate 29 and the rear wall 7 delimit a fan chamber 30, which merges downwardly into a distribution channel 31 running along the rear wall 7 (see Fig. 1).
• Several passage openings 32 open from the distribution channel 31 into the cold storage compartment 5.
• These passage openings 32 are expediently arranged in each case between two pull-out boxes 33 of the cold storage compartment 5, in order to produce an airflow directed towards the door 2 between the pull-out boxes 33.
• the air rises and reaches through a gap 34 between the front edge 14 of the partition wall 3 and the door 2, the normal refrigeration compartment 4.
• Cooling requirement in the cold storage compartment 5 has been detected and therefore the evaporator 16 and the fan 18 are in operation, both the cold storage compartment 5 cooled and the normal refrigeration compartment 4 gradually flooded from below with cold air from the cold storage compartment 5.
• a cooling of the cold storage compartment 5 alone is not possible, but can be ensured by appropriate dimensioning of the insulation of the normal refrigeration compartment 4 and cold storage compartment 5 that cooling demand in the cold storage compartment 5 less often than in
• Fig. 4 shows a perspective partially cutaway view of a piece of the body 1 and the partition wall 3.
• the bottom plate 13 of the partition wall 3 is omitted in this view, in the depth direction of the body 1 oriented, the bottom plate 13 supporting ribs 35 in the first branch 12 of the airway to show the partition 3 can.
• the bottom of the second branch 15 is sloping down to one
• Condensation channel 36 immediately in front of the wall plate 29.
• condensate collects during defrosting of the evaporator 16 and passes through a channel, not shown in the rear wall 7 to a evaporator, in a
• Engine room niche 37 is housed at the foot of the rear wall 7 in thermal contact with a compressor.
• the sloping course and the underside of the partition wall 3 can be used to adjacent to the front edge 14, a light 42 for illuminating the
• Both the intake passage 9 and the air passage 12, 15 in the partition wall 3 and the distribution channel 31 extend in this embodiment over the entire width of the compartments 4, 5, to both a uniform flow through the evaporator 16 over its entire width and one over the width to ensure even distribution of cold air in the compartment 5.
• Fig. 5 showed an alternative embodiment of the refrigerator, with parts of these
• the intake passage 9 is restricted to a part of the rear wall 7, and a distribution passage 38 having a plurality of passage openings 39 arranged at different heights fills the part of the rear wall 7 which is not occupied by the intake passage 9.
• Fig. 5 shows the flap 41 in a position in which it the passage to the distribution channel 31 of the
• Cold storage compartment 5 blocks and so at least part of the fan 18th blown air supplied to the distribution channel 38 to allow direct cooling of the normal refrigeration compartment 4.
• a pivoted about the axis 40 in the clockwise position of the flap 41 whose upper edge abuts the wall plate 29 and thus blocks access to the distribution channel 38. In this position, the flap 41, the entire expelled air from the fan 18 passes into the distribution channel 31 of Cold storage compartment 5.
• the ribs 25 are arranged fan-shaped in the upper branch 12 of the air path of the partition wall 3, and the branch 12 widens from back to front.

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

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ID=45937299

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Cited By (6)

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Citations (5)

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• 2011
  • 2011-04-05 DE DE102011006807A patent/DE102011006807A1/de not_active Withdrawn
• 2012
  • 2012-03-28 WO PCT/EP2012/055476 patent/WO2012136532A1/de active Application Filing
  • 2012-03-28 CN CN201280016140.7A patent/CN103620326B/zh active Active
  • 2012-03-28 EP EP12713054.0A patent/EP2694894B1/de not_active Not-in-force

Patent Citations (5)

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