EP2467656A1 - Appareil de réfrigération comportant un canal d'évacuation de l'eau de dégivrage et un siphon - Google Patents

Appareil de réfrigération comportant un canal d'évacuation de l'eau de dégivrage et un siphon

Info

Publication number
EP2467656A1
EP2467656A1 EP10743123A EP10743123A EP2467656A1 EP 2467656 A1 EP2467656 A1 EP 2467656A1 EP 10743123 A EP10743123 A EP 10743123A EP 10743123 A EP10743123 A EP 10743123A EP 2467656 A1 EP2467656 A1 EP 2467656A1
Authority
EP
European Patent Office
Prior art keywords
siphon
evaporation tray
water
appliance according
refrigerating appliance
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.)
Granted
Application number
EP10743123A
Other languages
German (de)
English (en)
Other versions
EP2467656B1 (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 Bosch und Siemens Hausgeraete 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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens 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
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 location outside the interior evaporation tray can be discharged, in the Abtauwasserkanal or at the transition between the Abtauwasserkanal and the evaporation tray Siphon is arranged.
  • 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.
  • the defrost water 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 Abtauigankanal. The defrost water flows into a particular located on the back of the refrigerator evaporation tray and evaporates. In order to prevent an influx of ambient air through the Abtauigankanal in coolable interior, ie in the cold room or in the case of a Nofrost device in the evaporator room, in the Abtauwasserkanal z. B. integrated a siphon. In the siphon, the defrost water collects and thus forms a closure which prevents the ingress of ambient air into the coolable interior of the refrigerator.
  • the evaporation tray is often z. B. arranged above the compressor of the refrigerator, so as to use the waste heat of the compressor for evaporation.
  • 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 water drain on the evaporator is usually on the suction side of the circulating air fan, the fan can suck in ambient air when the siphon is empty. This absorbed moisture can flow along the Abtauwasserkanals, but also at Venti- lator selfishl or attach to 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 when 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 is to be reduced by evaporation.
  • the invention solves this problem by a refrigeration device according to claim 1. This is characterized in that the bottom of the siphon is arranged above the water level in the evaporation tray in the maximum filled state. In this way it is ensured in particular that the water in the siphon is not in heat-conducting contact with the water in the evaporation tray, since it is separated from it by an air-filled intermediate space.
  • the section of the Abtauwasserkanals between siphon and evaporation tray is also preferably made of poor thermal conductivity material, in particular of thermoplastic or elastomeric plastic.
  • the wall thickness of the Abauwasserkanals 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 one or bulbous soil. In this case, the lowest point of the bottom of the siphon should be above the water level in the evaporation tray.
  • the siphon is a cup siphon.
  • 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 siphon can also be a tube siphon, a flashing siphon, a siphon siphon, a ball siphon or a bell odor trap.
  • the defrosting water located in the evaporation tray can be heated by waste heat from the refrigeration appliance.
  • this can happen because the evaporation tray is arranged in the vicinity of the compressor of the refrigerator, in particular above the compressor.
  • the hot gas pipe heats and evaporates the water in the evaporation tray.
  • 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 portion of the defrosting water cup.
  • This has the advantage that a part of the siphon and the Abtauwasserschale one piece, for example, as a plastic part, in particular plastic injection molded part can be formed.
  • the cup of the siphon may be formed integrally with the evaporation tray. In addition, it can be ensured in this way that 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 It is to be avoided that a heat exchange takes place between the defrosting water in the evaporation tray and the water in the siphon, since there is an air-filled intermediate space between the two.
  • the siphon is provided with a cover. This further reduces the evaporation of water from the siphon.
  • the refrigeration appliance is in particular a household refrigerating appliance, for example a refrigerator, a freezer, a wine cabinet or a fridge-freezer combination.
  • Fig. 1 is a schematic rear view of a household refrigerator according to the prior art
  • FIG. 2 shows a schematic cross section through a defrost water tray with siphon according to the prior art.
  • FIG. 3 shows a schematic cross section through a defrost water tray and siphon according to a first embodiment of the invention
  • FIG. 4 shows a schematic cross section through a defrost water tray and a
  • FIG. 1 shows diagrammatically the rear side of a household refrigerating appliance 1.
  • the dashed line 2 indicates the evaporator space 2 of the refrigerable interior of the refrigerating appliance, in which the evaporator is arranged in a non-rusting appliance.
  • 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 Abtauwasserkanal 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 shown dotted in Fig. 1 and the other figures.
  • the cup siphon 6 extends into the evaporation tray 8 and is wetted by the defrosting water 13 in the evaporation tray 8 from the outside, as a result of which the defrosting water in the siphon 6 also warms up and can therefore evaporate faster.
  • Fig. 2 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 which evaporates faster.
  • FIG. 3 shows an arrangement of siphon 6 and evaporation tray 8 according to a first embodiment of the invention.
  • the 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 via the siphon 6 visible. This extends over the top of the cup 12, leaving 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 by the defrosting water from the cup 12 displaced Air, and beyond 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.
  • 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 downwards through the sections 17 to the bottom 18 of the evaporation tray 8 in order to ensure a defined distance between the siphon 6 and the evaporation tray 8.
  • the sections 17 consist z. B. of a heat-insulating plastic.
  • the lid 16 of the siphon 6 is designed differently.
  • 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 guided through the evaporation tray 8 to heat the defrosting water therein and evaporate faster.
  • the siphon 6 has been shown in the middle of the evaporation tray 8, respectively. It goes without saying that the siphon can of course also be arranged in an edge area or next to the defrosting water tray 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)

Abstract

La présente invention concerne un appareil de réfrigération (1), en particulier un réfrigérateur de ménage, comportant un compartiment intérieur réfrigérable et un canal d'évacuation d'eau de dégivrage (5) par lequel l'eau de dégivrage (13) peut s'évacuer du compartiment de l'appareil de réfrigération (1) vers une cuvette d'évaporation (8) située à l'extérieur du compartiment, un siphon (6) étant disposé dans le canal d'évacuation de l'eau de dégivrage (5) ou à la transition entre le canal d'évacuation de l'eau de dégivrage (5) et la cuvette d'évaporation (8). En l'occurrence, le fond (20) du siphon (6) est situé au-dessus du niveau de remplissage maximal en eau (15) de la cuvette d'évaporation (8), ce qui évite à l'eau se trouvant dans le siphon (6) de se réchauffer et de s'évaporer trop vite.
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 true EP2467656A1 (fr) 2012-06-27
EP2467656B1 EP2467656B1 (fr) 2017-11-08

Family

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
See references of WO2011020801A1 *

Also Published As

Publication number Publication date
DE102009028775A1 (de) 2011-02-24
PL2467656T3 (pl) 2018-04-30
EP2467656B1 (fr) 2017-11-08
WO2011020801A1 (fr) 2011-02-24

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