EP2694894B1 - Dispositif combiné de refrigeration - Google Patents

Dispositif combiné de refrigeration Download PDF

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Publication number
EP2694894B1
EP2694894B1 EP12713054.0A EP12713054A EP2694894B1 EP 2694894 B1 EP2694894 B1 EP 2694894B1 EP 12713054 A EP12713054 A EP 12713054A EP 2694894 B1 EP2694894 B1 EP 2694894B1
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EP
European Patent Office
Prior art keywords
refrigeration device
wall
evaporator
branch
compartment
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.)
Not-in-force
Application number
EP12713054.0A
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German (de)
English (en)
Other versions
EP2694894A1 (fr
Inventor
Rainer Weser
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
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BSH Hausgeraete GmbH
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Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP2694894A1 publication Critical patent/EP2694894A1/fr
Application granted granted Critical
Publication of EP2694894B1 publication Critical patent/EP2694894B1/fr
Not-in-force 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
    • 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 household refrigerating appliance, having an upper and a lower storage chamber and a vaporizer which cools both storage chambers and is accommodated in a dividing wall between the storage chambers.
  • a known refrigeration device of this type are inlet openings of a housed in the partition evaporator chamber at the front edge and outlet openings formed at a rear edge. Such a refrigerator tends to form a strong temperature stratification, especially in the upper storage chamber, since the blown out of the evaporator chamber in the upper storage chamber cold air tends to remain in the lower region of the storage chamber, so that it is soon sucked back.
  • the US 5 156 015 A discloses a domestic refrigerator with two storage chambers designed for different operating temperatures, an evaporator housed in a partition between the storage chambers, one outlet side of the evaporator connected to the colder storage chamber and one inlet side of the evaporator to the warmer storage chamber, and a gap connecting the two storage chambers.
  • US 5 156 015 A discloses a refrigerator according to the preamble of claim 1.
  • US 5,787,725 A is another refrigeration device 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.
  • the object of the invention is to improve the efficiency of the refrigerating appliance according to the preamble.
  • a refrigeration device 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.
  • the inlet side of the evaporator should be connected to an intake passage having an inlet opening in an upper portion 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 radial fan can be arranged to save space in height of the partition wall between an outlet side of the evaporator and one of the outlet side opposite outer wall of the refrigerator. By attaching the fan in the amount of the partition is not lost or at best to a small extent usable depth of the storage chambers.
  • 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 air path in the partition wall is hairpin-shaped, wherein an adjoining the intake duct upstream branch of the air passage from one of the outer wall facing edge of the partition to the opposite edge and a downstream branch extends in the opposite direction to the distribution channel.
  • the air path preferably extends at least substantially over the width of the dividing wall.
  • the said outer wall opposite edge of the partition can be in space-saving manner, the gap limiting edge.
  • 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 preferably extend in the longitudinal direction so as not to impair the air circulation in the branch.
  • 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.
  • Fig. 1 shows a vertical section in the depth direction through the housing of a combination refrigerator according to the invention.
  • the housing comprises a substantially cuboid body 1 and a hinged door 2 to the front of the body 1, which define an interior, which is divided by a horizontal partition 3 into two storage chambers, a normal refrigeration compartment 4 above the partition wall 3 and a cold storage compartment 5 below the partition 3.
  • the body 1 comprises in a conventional manner a deep-drawn plastic inner container, a solid outer skin, which may be composed of plates of different materials, as well as a space between the inner container and the outer skin filling insulating material layer.
  • the partition wall 3 is supported on steps 6 of the side walls of the inner container.
  • 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 11 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 delimited by a loadable with refrigerated goods bottom plate 13 from the normal refrigeration compartment 4.
  • the bottom plate 13 may for example consist of glass, which releases the view into the branch 12, made of a solid opaque plastic or metal.
  • 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 behind a hat-shaped bottom plate 20 of the rotor 19 hidden, fixed to the rear wall 7 motor 21 can.
  • a rotor 19 of the centrifugal fan 18 is shown in half to show the behind a hat-shaped bottom plate 20 of the rotor 19 hidden, 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 radially and axially aligned air blades 22 are attached.
  • 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 over the underside of the partition 3 down over.
  • 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, tube 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 at the rear wall 7 facing the end of the refrigerant line 25, and a suction port 28 at the front edge 14.
  • the width of the portion 17 is constant here in the depth direction to the wall plate 29th behind which 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, the downwardly in a running along the rear wall 7 distribution channel 31 (s. Fig. 1 ) passes over.
  • 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 3 and the door 2, the normal refrigeration compartment 4.
  • 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 air path of the partition. 3 to be able to show.
  • the bottom of the second branch 15 is sloping up to a condensate 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 vaporizer in a machine 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 attach adjacent to the front edge 14 a light 42 for illuminating the cold storage compartment 5, without thereby appreciably restrict the usable volume of the pull-out boxes 33.
  • 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, wherein parts of this embodiment, already with reference to the Fig. 1 to 4 correspond to explained parts, are denoted by the same reference numerals and will not be explained again.
  • 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.
  • the flap 41 in a position in which it blocks the passage to the distribution channel 31 of the cold storage compartment 5 and so at least a portion 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.

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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)

Claims (17)

  1. Appareil frigorifique, notamment appareil frigorifique à usage domestique, comprenant deux chambres de stockage (4 ; 5), conçues pour différentes températures de service, et un évaporateur (16) logé dans une paroi de séparation (3) située entre les chambres de stockage (4 ; 5), un côté de sortie de l'évaporateur (16) étant relié à la chambre de stockage plus froide (5) et un côté d'entrée de l'évaporateur (16) étant relié à la chambre de stockage plus chaude (4), caractérisé en ce que le côté d'entrée est séparé de la chambre de stockage plus froide (5), la chambre de stockage plus chaude (4) étant disposée au-dessus de la plus froide (5) et le côté d'entrée de l'évaporateur (16) étant relié à un canal d'aspiration (9) qui présente une ouverture d'entrée (10) dans une partie supérieure de la chambre de stockage plus chaude (4), et en ce qu'un bord (14) de la paroi de séparation (3) délimite une fente (34) reliant les deux chambres de stockage (4 ; 5).
  2. Appareil frigorifique selon la revendication 1, caractérisé en ce que le canal d'aspiration (9), au moins dans une partie inférieure, a la même largeur que l'évaporateur (16).
  3. Appareil frigorifique selon la revendication 1 ou 2, caractérisé en ce qu'un ventilateur radial (18) est disposé à hauteur de la paroi de séparation (3) entre le côté de sortie de l'évaporateur (16) et une paroi extérieure (7) de l'appareil frigorifique, opposée au côté de sortie.
  4. Appareil frigorifique selon la revendication 3, caractérisé en ce que l'axe du ventilateur radial (16) est situé verticalement sur la paroi extérieure (7).
  5. Appareil frigorifique selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un canal de répartition (31) relié au côté de sortie de l'évaporateur (16) s'étend le long d'une paroi (7) de la chambre plus froide (5).
  6. Appareil frigorifique selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le canal d'aspiration (9) et le canal de répartition (31) sont disposés sur la même paroi extérieure (7) de l'appareil frigorifique.
  7. Appareil frigorifique selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'une voie d'air (12, 15) dans la paroi de séparation (3) est réalisée en forme d'épingle à cheveux avec une branche aval (12) s'étendant d'un bord faisant face à la paroi extérieure (7) vers le bord disposé de manière opposée (14) et une branche amont (15) s'étendant en direction opposée.
  8. Appareil frigorifique selon la revendication 7, caractérisé en ce que la voie d'air (12, 15) s'étend au moins essentiellement sur la largeur de la paroi de séparation.
  9. Appareil frigorifique selon la revendication 7 ou 8, caractérisé en ce qu'entre la branche aval (12) et la branche amont (15) est ménagée une paroi intermédiaire thermo-isolante munie d'un passage d'air sur l'extrémité de la paroi de séparation (3), opposée à la paroi extérieure (7), pour relier les branches.
  10. Appareil frigorifique selon l'une quelconque des revendications 7 à 9, caractérisé en ce qu'entre la branche amont (15) et la chambre plus froide (5) est ménagée une paroi de séparation thermo-isolante.
  11. Appareil frigorifique selon l'une quelconque des revendications 1 à 10, caractérisé en ce que le bord (14) opposé à la paroi extérieure (7) délimite la fente (34) reliant les deux chambres (4 ; 5).
  12. Appareil frigorifique selon l'une quelconque des revendications 7 à 11, caractérisé en ce que l'une des branches (12) qui ne contient pas l'évaporateur (16) est renforcée par des nervures (35) s'étendant en sens longitudinal.
  13. Appareil frigorifique selon l'une quelconque des revendications 7 à 12, caractérisé en ce que l'évaporateur (16) est logé dans la branche inférieure (15).
  14. Appareil frigorifique selon l'une quelconque des revendications 7 à 13, caractérisé en ce que la branche (15) contenant l'évaporateur (16) est inclinée en direction de la paroi extérieure (7).
  15. Appareil frigorifique selon l'une quelconque des revendications 7 à 14, caractérisé en ce que l'une (15) des branches (12, 15) diverge de la verticale en direction de la paroi extérieure (7).
  16. Appareil frigorifique selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une conduite d'agent frigorifique (25) de l'évaporateur (16) est guidée sur une seule couche.
  17. Appareil frigorifique selon l'une quelconque des revendications précédentes, caractérisé en ce que la paroi de séparation (3) est insérée dans un réservoir intérieur commun des chambres de stockage (4, 5).
EP12713054.0A 2011-04-05 2012-03-28 Dispositif combiné de refrigeration Not-in-force EP2694894B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011006807A DE102011006807A1 (de) 2011-04-05 2011-04-05 Kombinationskältegerät
PCT/EP2012/055476 WO2012136532A1 (fr) 2011-04-05 2012-03-28 Appareil frigorifique combiné

Publications (2)

Publication Number Publication Date
EP2694894A1 EP2694894A1 (fr) 2014-02-12
EP2694894B1 true EP2694894B1 (fr) 2016-03-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP12713054.0A Not-in-force EP2694894B1 (fr) 2011-04-05 2012-03-28 Dispositif combiné de refrigeration

Country Status (4)

Country Link
EP (1) EP2694894B1 (fr)
CN (1) CN103620326B (fr)
DE (1) DE102011006807A1 (fr)
WO (1) WO2012136532A1 (fr)

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KR102289289B1 (ko) 2017-03-10 2021-08-13 엘지전자 주식회사 냉장고
CN109662585B (zh) * 2017-10-16 2024-05-31 佛山市顺德区美的饮水机制造有限公司 壳体组件
CN112129030A (zh) * 2020-09-24 2020-12-25 合肥美的电冰箱有限公司 冰箱的风道组件及冰箱
CN114234529B (zh) * 2021-12-23 2023-03-24 珠海格力电器股份有限公司 冰箱及其控制方法

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Publication number Priority date Publication date Assignee Title
US10302347B2 (en) 2016-09-29 2019-05-28 Lg Electronics Inc. Refrigerator
US10317115B2 (en) 2016-09-29 2019-06-11 Lg Electronics Inc. Refrigerator

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EP2694894A1 (fr) 2014-02-12
DE102011006807A1 (de) 2012-10-11
CN103620326B (zh) 2016-05-04
CN103620326A (zh) 2014-03-05
WO2012136532A1 (fr) 2012-10-11

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