EP2467656B1 - Réfrigérateur avec canal d'eau de décongélation et siphon - Google Patents

Réfrigérateur avec canal d'eau de décongélation et siphon Download PDF

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Publication number
EP2467656B1
EP2467656B1 EP10743123.1A EP10743123A EP2467656B1 EP 2467656 B1 EP2467656 B1 EP 2467656B1 EP 10743123 A EP10743123 A EP 10743123A EP 2467656 B1 EP2467656 B1 EP 2467656B1
Authority
EP
European Patent Office
Prior art keywords
siphon
refrigerator
defrost water
evaporation tray
evaporator pan
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
EP10743123.1A
Other languages
German (de)
English (en)
Other versions
EP2467656A1 (fr
Inventor
Thomas Bischofberger
Cuma DÜLGER
Panagiotis Fotiadis
Hans Ihle
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 Hausgeraete GmbH
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Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL10743123T priority Critical patent/PL2467656T3/pl
Publication of EP2467656A1 publication Critical patent/EP2467656A1/fr
Application granted granted Critical
Publication of EP2467656B1 publication Critical patent/EP2467656B1/fr
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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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays
    • 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
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/141—Removal by evaporation
    • F25D2321/1411—Removal by evaporation using compressor heat
    • 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
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/144—Collecting condense or defrost water; Removing condense or defrost water characterised by the construction of drip water collection pans
    • F25D2321/1442—Collecting condense or defrost water; Removing condense or defrost water characterised by the construction of drip water collection pans outside a refrigerator
    • 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
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/145—Collecting condense or defrost water; Removing condense or defrost water characterised by multiple collecting pans
    • 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
    • F25D2321/00—Details or arrangements for defrosting; Preventing frosting; Removing condensed or defrost water, not provided for in other groups of this subclass
    • F25D2321/14—Collecting condense or defrost water; Removing condense or defrost water
    • F25D2321/146—Collecting condense or defrost water; Removing condense or defrost water characterised by the pipes or pipe connections
    • 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
    • F25D2500/00—Problems to be solved
    • F25D2500/02—Geometry problems

Definitions

  • the present invention relates to a refrigeration appliance, in particular domestic refrigeration appliance, with a coolable interior and a Abtauigankanal through which defrost water from the interior of the refrigerator in a located outside of the interior evaporation tray can be discharged, wherein at the transition between the Abtauwasserkanal and the evaporation tray a siphon is arranged.
  • the evaporator In a cooling device of the type mentioned, the evaporator is often arranged in an evaporator space separate from the refrigerated goods within the coolable interior (Nofrost device). By means of a circulating air fan, the air cooled by the evaporator is transported to the refrigerated goods. As with all refrigeration appliances, moisture from the ambient air condenses on the evaporator where it forms ice. The evaporator is therefore regularly defrosted, the defrost water is discharged from the interior of the refrigerator via a Abtauwasserkanal. The defrost water flows into a particular located on the back of the refrigerator evaporation tray and evaporates.
  • the evaporation tray is in the refrigerator according to US 3 137 146 arranged above the compressor of the refrigerator, so as to reduce the waste heat of the compressor for evaporation to use. There is a risk that the water in the siphon also heats up and evaporates so quickly that the siphon is deactivated before the next time the refrigeration unit or the evaporator is defrosted.
  • the fan can suck in ambient air when the siphon is empty. This absorbed moisture can accumulate along the Abtauwasserkanals, but also on fan blades or on the Abtauwasserablauf facing part of the evaporator and its surroundings and lead to ice formation at these points. Since the defrost heaters are not optimally designed for this type of moisture accumulation, this ice formation can permanently disrupt the function of the device or even override the device if defrosting is no longer possible.
  • the invention therefore has the task of finding a solution that does not have the disadvantages described above.
  • the risk of deactivation of the siphon by evaporation should be reduced without complicating the installation of the siphon.
  • the invention solves this problem by a refrigeration device according to claim 1. Since the bottom of the siphon is formed by an elevated region of the defrost water tray (8) and arranged above the water level in the evaporation tray in the maximum filled state, in particular ensures that the water in the siphon is not in heat-conducting contact with the water in the evaporation tray because it is separated from it by an air-filled space.
  • a tube opens with its outlet end down into a cup-like container. When water flows into the siphon through the pipe, it fills the cup and closes the outlet end of the pipe.
  • the bottom of the siphon is the lowest point of the cup into which the defrost water channel coming from above opens.
  • the training as a siphon makes it possible to mount the Abtauwasserkanal separated from the Siphontasse.
  • the siphon cup does not need to be mounted as a stand-alone component.
  • the section of the Abtauwasserkanals between siphon and evaporation tray is also preferably made of poor thermal conductivity material, in particular thermoplastic or elastomeric plastic.
  • the wall thickness of Abtauwasserkanals between siphon and evaporation tray is optimized in terms of poor heat conduction.
  • the water level in the evaporation tray in its maximum filled state is the highest defrost water level that can be present in the evaporation tray. This may be the water level just before overflowing the evaporation tray. However, it may also be the water level, which is present directly after a defrost cycle of the refrigerator, so if there is so much defrost water in the evaporation tray, as is defrosted at a maximum from the evaporator chamber or the interior of the refrigerator.
  • the bottom of the siphon is the lowest point of the siphon, which can be filled with defrost water.
  • the floor does not have to be level, it can also be a round or bulbous floor. In this case, the lowest point of the bottom of the siphon should be above the water level in the evaporation tray.
  • the defrosting water located in the evaporation tray can be heated by waste heat from the refrigeration appliance.
  • this can be done by arranging the evaporation tray in the vicinity of the compressor of the refrigerator, in particular above the compressor.
  • the hot gas pipe heats the water in the evaporation tray and thereby evaporates it.
  • the refrigerant coming from the compressor is pre-cooled before it flows through the condenser coils.
  • the bottom of the siphon is formed by a raised area of defrosting water.
  • the cup of the siphon may be formed integrally with the evaporation tray.
  • the overflowing from the siphon water is safely collected in the evaporation tray.
  • the bottom of the siphon is arranged, for example, 0.5 cm - 10 cm above the water level of the evaporation tray in the maximum filled state. That way avoided that a heat exchange between the defrost water in the evaporation tray and the water takes place in the siphon, since there is an air-filled gap between them.
  • the siphon is provided with a cover. This further reduces the evaporation of water from the siphon.
  • the refrigerator is in particular a household refrigeration appliance, for example a refrigerator, a freezer, a wine cabinet or a fridge-freezer.
  • Fig. 1 schematically shows the back of a household refrigerator 1.
  • the dashed line 2 of the evaporator chamber 2 of the coolable interior of the refrigerator in which in a Nofrost device, the evaporator is arranged.
  • a water outlet 4 In the rear region of the evaporator chamber 2 is a water outlet 4, through which the defrost water is passed through the insulation of the refrigerator to the outside. From there it is by a Abtauigankanal 5 on the back 3 of the refrigerator 1 after led down and opens into a defrost water 8, which is located above the compressor 10 of the refrigerator.
  • a cup siphon 6 is arranged at the mouth of Abtauwasserkanals 5 in the evaporation tray 8 .
  • the defrost water 13 is in Fig. 1 and the other figures each shown dotted.
  • cup siphon 6 extends in the prior art into the evaporation tray 8 and is wetted by the defrost water 13 in the evaporation tray 8 from the outside, which also heat the defrost water in the siphon 6 and thereby evaporate faster.
  • a cup siphon 6 is shown in an evaporation tray 8 according to the prior art in magnification.
  • the bottom of the siphon is level with the bottom 18 of the evaporation tray so that heat from the evaporation tray 8 over the walls 12 of the cup siphon into the water 13 within the siphon is transmitted, which evaporates faster.
  • siphon 6 is a cup siphon
  • the bottom 20 is increased relative to the bottom 18 of the evaporation tray 8.
  • it has a distance t from the water level 15 of the evaporation tray 8 when it is filled to the maximum, which distance is for example 1 to 3 cm.
  • a cover 16 on the siphon 6 visible. This extends over the top of the cup 12, with the recess of an inlet for the Abtauwasserkanal 5, and over part of the side walls of the cup 12. In this case, a gap is left, so that on the one hand by the defrost water from the cup 12 displaced air, and in addition overflowing defrost water from the cup 12 can flow into the evaporation tray 8.
  • a hot gas pipe 22 is guided, through which refrigerant flows from the refrigerant circuit.
  • the refrigerant after compression in the compressor 10 passed through the evaporation tray 8 to give a portion of its heat to the water 13 so that it evaporates faster.
  • Fig. 4 shows a schematic cross section through an arrangement of siphon 6 and evaporation tray 8 according to a second embodiment of the invention.
  • the siphon 6 is designed differently. In particular, it has a circular bottom 20, the lowest point of which has a distance t to the water level 15 in the evaporation tray in its maximum filled state.
  • the walls of the cup 12 are extended down through the sections 17 to the bottom 18 of the evaporation tray 8 to ensure a defined distance between siphon 6 and evaporation tray 8.
  • the sections 17 consist z. B. of a heat-insulating plastic.
  • the lid 16 of the siphon 6 is designed differently. In this embodiment, the lid 16 is sealingly placed on the walls 12 of the bowl siphon, and has only at one point an outlet 24 through which the defrost water from the siphon 6 can flow into the evaporation tray 8.
  • a hot gas pipe 22 is passed through the evaporation tray 8 to heat the defrost water therein and to evaporate faster.
  • the siphon 6 has been shown in each case in the middle of the evaporation tray 8. It is understood that the siphon can of course also be arranged in an edge region of the defrost water 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Removal Of Water From Condensation And Defrosting (AREA)

Claims (7)

  1. Appareil frigorifique (1), en particulier appareil frigorifique électroménager, avec un espace interne apte à refroidir et un canal d'eau de décongélation (5), à travers lequel de l'eau de décongélation (13) peut être évacuée hors de l'espace interne de l'appareil frigorifique (1) dans un bac d'évaporation (8) installé à l'extérieur de l'espace interne, dans lequel au niveau de la transition entre le canal d'eau de décongélation (5) et le bac d'évaporation (8) est disposé un siphon (6) réalisé en tant que siphon à tasse, dans lequel la partie inférieure (20) du siphon (6) est disposée à l'état rempli au-dessus de niveau d'eau possible maximal (15) dans le bac d'évaporation (8), caractérisé en ce que la partie inférieure (20) du siphon (6) est formée par une zone relevée du bac d'évaporation (8).
  2. Appareil frigorifique selon la revendication 1, caractérisé en ce que, entre le siphon (6) et le bac d'évaporation (8), le canal d'eau de décongélation est prévu en matériau faiblement conducteur de chaleur, en particulier en matière synthétique thermoplastique ou élastomère.
  3. Appareil frigorifique selon l'une des revendications précédentes, caractérisé en ce que de l'eau de décongélation (13) se trouvant dans le bac d'évaporation (8) peut être réchauffée par le biais de la chaleur perdue de l'appareil frigorifique.
  4. Appareil frigorifique selon l'une des revendications précédentes, caractérisé en ce que le bac d'évaporation (8) et disposé au-dessus d'un compresseur (10) de l'appareil frigorifique.
  5. Appareil frigorifique selon l'une des revendications précédentes, caractérisé en ce qu'un tuyau de gaz chauffant (22), à travers lequel s'écoule un agent frigorifique qui a été comprimé par le compresseur (10) de l'appareil frigorifique, est guidé à travers le bac d'évaporation (8).
  6. Appareil frigorifique selon l'une des revendications précédentes, caractérisé en ce que la partie inférieure (20) du siphon (6) est disposée à environ 0,5 cm à 10 cm au-dessus du niveau d'eau (15) dans le bac d'évaporation (8) dans l'état rempli maximal.
  7. Appareil frigorifique selon l'une des revendications précédentes, caractérisé en ce que le siphon (6) est pourvu d'une bonde (16).
EP10743123.1A 2009-08-21 2010-08-16 Réfrigérateur avec canal d'eau de décongélation et siphon Active EP2467656B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10743123T PL2467656T3 (pl) 2009-08-21 2010-08-16 Urządzenie chłodnicze z kanałem do wody z rozmrażania i z syfonem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910028775 DE102009028775A1 (de) 2009-08-21 2009-08-21 Kältegerät mit einem Abtauwasserkanal und einem Siphon
PCT/EP2010/061868 WO2011020801A1 (fr) 2009-08-21 2010-08-16 Appareil de réfrigération comportant un canal d'évacuation de l'eau de dégivrage et un siphon

Publications (2)

Publication Number Publication Date
EP2467656A1 EP2467656A1 (fr) 2012-06-27
EP2467656B1 true EP2467656B1 (fr) 2017-11-08

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ID=42945664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10743123.1A Active EP2467656B1 (fr) 2009-08-21 2010-08-16 Réfrigérateur avec canal d'eau de décongélation et siphon

Country Status (4)

Country Link
EP (1) EP2467656B1 (fr)
DE (1) DE102009028775A1 (fr)
PL (1) PL2467656T3 (fr)
WO (1) WO2011020801A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3034972A1 (fr) * 2014-12-18 2016-06-22 Indesit Company S.p.A. Appareil de réfrigération, notamment à usage ménager, et son procédé de fabrication
DE102018116181A1 (de) * 2018-07-04 2020-01-09 Liebherr-Hausgeräte Lienz Gmbh Kühl- und/oder Gefriergerät
EP4056266A1 (fr) 2021-03-10 2022-09-14 UMICORE AG & Co. KG Catalyseurs pour la réduction selective des nox par l'ammoniac comprenant du brookite tio2 comme matériel du support
EP4246068A1 (fr) 2022-03-18 2023-09-20 Industrie Scaffalature Arredamenti - Isa Società Per Azioni Unité de cassette pour vitrines réfrigérées avec un système pour empêcher le passage d'air de l'extérieur

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2907180A (en) * 1956-10-19 1959-10-06 Gen Motors Corp Refrigerating apparatus having air control means for multiple compartments
US3137146A (en) * 1961-07-27 1964-06-16 Whirlpool Co Refrigeration apparatus
JPH09105574A (ja) * 1995-10-04 1997-04-22 Midori Anzen Co Ltd 直冷式貯蔵庫

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
PL2467656T3 (pl) 2018-04-30
WO2011020801A1 (fr) 2011-02-24
DE102009028775A1 (de) 2011-02-24
EP2467656A1 (fr) 2012-06-27

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