EP3359891A1 - Appareil de froid pourvu d'un siphon situé dans l'évacuation de condensat - Google Patents

Appareil de froid pourvu d'un siphon situé dans l'évacuation de condensat

Info

Publication number
EP3359891A1
EP3359891A1 EP16766587.6A EP16766587A EP3359891A1 EP 3359891 A1 EP3359891 A1 EP 3359891A1 EP 16766587 A EP16766587 A EP 16766587A EP 3359891 A1 EP3359891 A1 EP 3359891A1
Authority
EP
European Patent Office
Prior art keywords
siphon
evaporator
refrigerating appliance
appliance according
recess
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
EP16766587.6A
Other languages
German (de)
English (en)
Other versions
EP3359891B1 (fr
Inventor
Markus Arbogast
Marcus WEHLAUCH
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
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 Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL16766587T priority Critical patent/PL3359891T3/pl
Publication of EP3359891A1 publication Critical patent/EP3359891A1/fr
Application granted granted Critical
Publication of EP3359891B1 publication Critical patent/EP3359891B1/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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • F25D21/08—Removing frost by electric heating
    • 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
    • F25D2321/1441—Collecting condense or defrost water; Removing condense or defrost water characterised by the construction of drip water collection pans inside 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
    • F25D2321/146—Collecting condense or defrost water; Removing condense or defrost water characterised by the pipes or pipe connections

Definitions

  • the present invention relates to a refrigeration appliance, in particular a domestic refrigeration appliance, with an interior space surrounded by a thermal barrier coating, an evaporator cooling the interior space and a condensate outlet leading from the evaporator through the thermal barrier coating into the open air.
  • Such a siphon at least in a refrigerator whose interior reaches temperatures below 0 degrees Celsius, be located only outside of the thermal barrier coating, as a freezing of water contained in the siphon would make it clogged and unusable. It is difficult to place the siphon in the machine room, as it can neither block the cooling of the components present there nor heat them to such an extent that it dries in a short time and the airtightness of the siphon between two defrost cycles is not ensured.
  • the attachment of the siphon to a rear wall of the device is problematic because this requires either a reduction of the usually provided there backwall evaporator or a forward installation of the thermal barrier coating of the rear wall and thus brings a significant loss of usable volume with it.
  • the object of the invention is to provide a refrigeration device that allows a simple and space-saving installation of a siphon in the condensate drain.
  • the object is achieved by providing in a refrigeration appliance, in particular a household refrigeration appliance, with an interior surrounded by a thermal barrier coating, a vaporizer cooling the interior and leading from the evaporator through the thermal barrier coating into the open, a siphon having condensate drainage of the siphon on the inside of the thermal barrier coating and can be heated by a defrost heater.
  • a refrigeration appliance in particular a household refrigeration appliance
  • a vaporizer cooling the interior and leading from the evaporator through the thermal barrier coating into the open
  • a siphon having condensate drainage of the siphon on the inside of the thermal barrier coating and can be heated by a defrost heater.
  • the interior of the siphon is relatively easy to accommodate, without causing a shift of the thermal barrier coating and thus a significant loss of usable volume is connected.
  • the risk that due to premature evaporation of the water in the siphon, the condensate drain is permeable to air, is eliminated by the low temperature at which the siphon is held.
  • the condensate drain is guided on a short, preferably rectilinear path through the thermal barrier coating, the attenuation of the insulating effect of the thermal barrier coating can be limited by the condensate drain to a minimum.
  • the water is frozen in the condensate, it forms a immovable closure, which also prevents the formation of Blubberge Hurschen that arise in a filled with liquid water siphon, for example, warm air that has entered the interior of the refrigerator when opening the door , Cools itself and thereby ambient air is sucked in through the siphon.
  • the siphon defrost heater should be operatively coupled to a defrost heater for the evaporator to ensure that the siphon is permeable or timely permeable when the evaporator is defrosted and condensate is drained from it via the siphon.
  • both heaters can also be controlled by a same switch and operated simultaneously;
  • a common defrost heater may be provided for the evaporator and for the siphon.
  • the siphon is preferably arranged at the bottom of a depression in the evaporation chamber.
  • the defrost heater may extend over the recess to heat them over a large area, in particular by radiation.
  • the defrost heater may extend between the evaporator and the well to simultaneously deliver heat down to the well and up to the evaporator.
  • the defrost heater may in particular be plate-shaped or rod-shaped.
  • the defrost heater For the defrost heater to thaw the siphon in a reasonably short time by radiation, its operating temperature must be well above 0 ° C; then it can also heat the evaporator by radiation.
  • the bottom of the well should slope down to the siphon, firstly to collect the condensate at the siphon, secondly to keep a high part of the bottom free of water or ice so that it will directly deflect radiation from the overlying defrost Pick up defrost heating and forward the radiant heat to the ice in the siphon.
  • the bottom of the well may be provided with an infrared absorbing surface layer.
  • the bottom of the recess may be at least partially metallic.
  • the siphon is expediently formed by a nozzle projecting over the bottom of the depression and a cup which is put over the neck.
  • a bottom edge of the cup should be at most 2 mm below the top of the nozzle to limit the amount of water that must be thawed to make the siphon porous.
  • a surface of the siphon facing the defrost heater in particular an upper side of the beaker, can be provided with an infrared-absorbing surface layer.
  • Fig. 1 is a schematic section through an inventive
  • FIG. 2 is an enlarged detail of FIG. 1 according to a first embodiment
  • FIG. 3 shows a section analogous to FIG. 2 according to a second embodiment
  • Fig. 4 is a partial section through a refrigerator according to a third embodiment of the
  • FIG. 1 shows a schematic cross section through a NoFrost domestic refrigeration appliance with a body 1 and a door 2, which are each foamed with a thermal barrier coating 3 and enclose an interior 4.
  • the interior 4 is subdivided by a partition wall 5 into a storage chamber 6 which is accessible via the door 2 and an evaporation chamber 7 which extends in upright orientation between the dividing wall 5 and a rear wall 8 of the body 1.
  • the evaporator chamber 7 is filled to a large extent by an evaporator 9, typically a finned evaporator.
  • a fan 10 is disposed in an opening of the partition wall 5 to drive air circulation between the storage chamber 6 and the evaporator chamber 7 when the evaporator 9 is in operation.
  • a horizontal or forward slightly sloping wall 1 1 of the body 1 separates the evaporator chamber 7 of a machine room 12 which is outside the thermal barrier coating 3 and contains, inter alia, a compressor 13.
  • a plastic deep-drawn inner container separates in a conventional manner the interior 4 of the thermal barrier coating 3.
  • a recess 14 is formed in the inner container, which extends over the entire width of the evaporator chamber 7.
  • a siphon 15 at the lowest point of the recess 14 forms the starting point of a condensate drain 16, which extends vertically through the wall 1 1 through to a heated evaporator shell 17 in the engine room 12 from the compressor 13.
  • Fig. 2 shows the siphon 15 and its surroundings in an enlarged section according to a first embodiment of the invention.
  • the siphon 15 comprises a cylindrical neck 18, which extends from the bottom of the recess 14 upwards, and a shell or a cup 19, which is inverted over the free end of the nozzle 18.
  • the circumferential wall 22 of the cup 19 may be provided with individual feet 23, which surrounds the nozzle 18 at the bottom of the recess 14, here in a Neck 18 surrounding trench 24, support.
  • An electrical resistance heater 25 is attached to one of the thermal barrier coating 3 facing outside of the trench 24 and operable together with a mounted on the fin evaporator 9 resistance heater 26 to defrost at a defrosting of the evaporator 9 in time, the water in the trench 24, so that a free drain the condensation water is ensured by the evaporator 9 via the condensate drain 16 to the evaporation tray 17.
  • After completion of the defrosting of the trench 24 remains filled up to the upper edge 21 of the nozzle 18 with water, so that as soon as the evaporator 9 cools again, the water in the trench 24 freezes and closes the siphon 15 tight.
  • Fig. 3 shows a schematic section through the siphon 15 according to a preferred second embodiment of the invention.
  • a plate-shaped resistance heater 27 is horizontally oriented here above the depression 14 and below the lamella evaporator 9 arranged. In its place could also be provided a rod-shaped heater and in particular be oriented rectilinearly perpendicular to the cutting plane or extend in a horizontal plane in meanders.
  • a second heater could, like the heater 26 of FIG. 2, be disposed directly on the fin evaporator 9 and operated together with the resistance heater 27 to heat the evaporator 9, if at the same time the resistance heater 27 thaws the water in the siphon 15.
  • infrared radiation emitted by the resistance heater 27 heats both the fin evaporator 9 and the siphon 15.
  • the cup 19 discharges the heat collected by it via the lower edge of the wall 22 dipping into the ice body 28 surrounding the socket 18 to the ice body 28.
  • the ice body 28 does not have to be completely thawed, it is sufficient if the ice is liquefied continuously from the outside to the inside along the circumference of the wall 22 at one point.
  • the siphon 15 obliquely sloping walls 29 of the recess 14 and ensure the low height of the nozzle 18 that at the end of each defrosting process, only a small part of the walls 29 is covered around the nozzle 18 of water; the majority of the walls 29, which is higher than the upper edge 21 of the nozzle 18, therefore remains free of ice during the cooling operation and heats up quickly at the next defrosting by the radiation of the heater 27.
  • Fig. 4 shows a third embodiment of the invention is a schematic section through a siphon 15 and its surroundings in a refrigerator with a horizontally arranged under a ceiling 32 of the body evaporator 7.
  • the heater 27 extends here under a broad side of the finned evaporator 9 and can this both by radiation and by direct contact heat.
  • an infrared-reflective film 33 is arranged to minimize the heat transfer to the underlying, the evaporator chamber 7 of the storage chamber 6 separating wall 5.
  • Foil 33 and wall 5 are sloping to the rear wall 8 to 9 running out of the evaporator condensate water to the recess 14, which is arranged here in a rear part of the wall 5 on the film 33 protruding rear portion 34 of the heater 27 emits heat radiation down in order to heat the depression 14 and the siphon 15 - constructed here in the same way as in the embodiment of FIG. 2.

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

Appareil de froid, en particulier appareil de froid ménager, qui comporte une chambre interne (4) entourée d'une couche d'isolation thermique (3), un évaporateur (9) refroidissant la chambre interne (4) et une évacuation de condensat (16) allant de l'évaporateur (9) à travers la couche d'isolation thermique (3) jusqu'à l'air libre et comportant un siphon (15). Selon l'invention, le siphon (15) est situé sur la face interne de la couche d'isolation thermique (3) et peut être chauffé par un dispositif de dégivrage (27).
EP16766587.6A 2015-10-07 2016-09-19 Un appareil frigorifique avec un siphon dans l'évacuation du condensat Active EP3359891B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16766587T PL3359891T3 (pl) 2015-10-07 2016-09-19 Urządzenie chłodzące z syfonem w odpływie kondensatu

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015219327.6A DE102015219327A1 (de) 2015-10-07 2015-10-07 Kältegerät mit Siphon im Kondensatablauf
PCT/EP2016/072175 WO2017060066A1 (fr) 2015-10-07 2016-09-19 Appareil de froid pourvu d'un siphon situé dans l'évacuation de condensat

Publications (2)

Publication Number Publication Date
EP3359891A1 true EP3359891A1 (fr) 2018-08-15
EP3359891B1 EP3359891B1 (fr) 2021-01-06

Family

ID=56940079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16766587.6A Active EP3359891B1 (fr) 2015-10-07 2016-09-19 Un appareil frigorifique avec un siphon dans l'évacuation du condensat

Country Status (6)

Country Link
US (1) US20190120540A1 (fr)
EP (1) EP3359891B1 (fr)
CN (1) CN108139138B (fr)
DE (1) DE102015219327A1 (fr)
PL (1) PL3359891T3 (fr)
WO (1) WO2017060066A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102478735B1 (ko) * 2018-03-12 2022-12-19 엘지전자 주식회사 냉장고
CN108800727A (zh) * 2018-04-19 2018-11-13 合肥美的电冰箱有限公司 化霜组件和制冷装置
DE102019213219A1 (de) * 2019-09-02 2021-03-04 BSH Hausgeräte GmbH Kältegerät und Siphon dafür
DE102020209678A1 (de) 2020-07-31 2022-02-03 BSH Hausgeräte GmbH Kältegerät und Verfahren zum Montieren eines Ablaufverschlusses an einem Kühlgutbehälter eines Kältegeräts

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2531323A (en) * 1950-11-21 Refrigeration cabinet
US2767558A (en) * 1955-03-30 1956-10-23 Whirlpool Seeger Corp Air blast refrigerated cabinet
US3050957A (en) * 1960-09-26 1962-08-28 Gen Electric Defrost water drain seal
US3120111A (en) * 1962-05-28 1964-02-04 Gen Motors Corp Refrigerating apparatus with defrost means
CA999631A (en) * 1973-08-28 1976-11-09 Raymond R. Sherburn Refrigerator cabinet construction
JP2005300042A (ja) * 2004-04-13 2005-10-27 Daisho Sangyo Kk 除霜ヒータ、除霜システム、及び冷蔵庫
DE102008040430A1 (de) 2008-07-15 2010-01-21 BSH Bosch und Siemens Hausgeräte GmbH Kanalverschlussmittel für einen Abtauwasserkanal eines Kühlgerätes, Abtauwasserkanal eines Kühlgerätes sowie Kühlgerät
EP2378227A1 (fr) * 2010-04-19 2011-10-19 Forster Küchen- & Kühltechnik AG Réfrigérateur

Also Published As

Publication number Publication date
PL3359891T3 (pl) 2021-06-14
CN108139138A (zh) 2018-06-08
WO2017060066A1 (fr) 2017-04-13
US20190120540A1 (en) 2019-04-25
DE102015219327A1 (de) 2017-04-13
CN108139138B (zh) 2021-04-09
EP3359891B1 (fr) 2021-01-06

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