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EP3359891B1 - Un appareil frigorifique avec un siphon dans l'évacuation du condensat - Google Patents

Un appareil frigorifique avec un siphon dans l'évacuation du condensat Download PDF

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Publication number
EP3359891B1
EP3359891B1 EP16766587.6A EP16766587A EP3359891B1 EP 3359891 B1 EP3359891 B1 EP 3359891B1 EP 16766587 A EP16766587 A EP 16766587A EP 3359891 B1 EP3359891 B1 EP 3359891B1
Authority
EP
European Patent Office
Prior art keywords
siphon
evaporator
refrigeration appliance
appliance according
defrost heater
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
EP16766587.6A
Other languages
German (de)
English (en)
Other versions
EP3359891A1 (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
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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
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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
    • 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 device, in particular a domestic refrigeration device, with an interior space surrounded by a thermal insulation layer, an evaporator cooling the interior space and a condensate drain leading from the evaporator through the thermal insulation layer to the outside.
  • the object of the invention is to specify a refrigeration device that enables safe and rapid condensate drainage.
  • the object is achieved by a refrigeration device, in particular a household refrigeration device, with the features of claim 1.
  • the siphon can be accommodated relatively easily in the interior without a displacement of the thermal insulation layer and thus a noticeable loss of usable volume being associated.
  • the risk of the condensate drain becoming air-permeable due to premature evaporation of the water in the siphon is eliminated by the low temperature at which the siphon is kept. Since the condensate drain is guided on a short, preferably straight path through the thermal insulation layer, the weakening of the insulation effect of the thermal insulation layer by the condensate drain can be limited to a minimum.
  • the condensate drain As long as the water in the condensate drain is frozen, it forms an immovable seal that also prevents the bubbling noises that occur in one Siphon filled with liquid water arise when, for example, warm air that has entered the interior of the refrigeration device when the door is opened cools down therein and ambient air is sucked in via the siphon as a result.
  • the defrost heater of the siphon should be functionally coupled to a defrost heater for the evaporator in order to ensure that the siphon is permeable or becomes permeable in good time when the evaporator is defrosted and condensate is to be discharged from there via the siphon.
  • the heating of the siphon and the evaporator can be put into operation shortly before the start of a defrosting process in order to ensure that the contents of the siphon are liquid in good time and thus the siphon is permeable when the flow of Condensate from the evaporator begins.
  • both heaters can also be controlled via the same switch and thus operated simultaneously; According to a preferred embodiment, a common defrost heater can be provided for the evaporator and for the siphon.
  • the defrost heater can extend over the recess in order to heat it over a large area, in particular by radiation.
  • the defrost heater can extend between the evaporator and the recess in order to simultaneously dissipate heat down to the recess and up to the evaporator.
  • the defrost heater can in particular be plate-shaped or rod-shaped.
  • the defrost heater In order for the defrost heater to defrost the siphon in a justifiable short time using radiation, its operating temperature must be well above 0 ° C; then it can also heat the evaporator by radiation.
  • the bottom of the recess should be sloping towards the siphon, on the one hand to collect the condensate at the siphon, on the other hand to be able to keep a high part of the bottom free of water or ice so that this radiation directly from the overlying one when defrosting Record defrost heating and transfer the radiant heat to the ice in the siphon.
  • the siphon is expediently formed by a connecting piece protruding above the bottom of the recess and a beaker placed over the connecting piece.
  • a lower edge of the beaker should be a maximum of 2 mm below the upper edge of the nozzle in order to limit the amount of water that has to be thawed to make the siphon permeable.
  • a surface of the siphon facing the defrost heater in particular an upper side of the beaker, can also be provided with an infrared-absorbing surface layer.
  • Fig. 1 shows a schematic cross section through a NoFrost household refrigerator with a body 1 and a door 2, which are each filled with a thermal insulation layer 3 and enclose an interior 4.
  • the interior 4 is subdivided by a partition 5 into a storage chamber 6 accessible via the door 2 and an evaporator chamber 7, which extends in an upright orientation between the partition 5 and a rear wall 8 of the body 1.
  • the evaporator chamber 7 is largely filled by an evaporator 9, typically a lamellar evaporator.
  • a fan 10 is arranged in an opening of the partition wall 5 in order to drive air circulation between the storage chamber 6 and the evaporator chamber 7 when the evaporator 9 is in operation.
  • a horizontal or slightly sloping wall 11 of the body 1 separates the evaporation chamber 7 from a machine room 12, which lies outside the thermal insulation layer 3 and contains a compressor 13, among other things.
  • An inner container deep-drawn from plastic separates the interior space 4 from the heat-insulating layer 3 in the usual way.
  • 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 11 to an evaporation tray 17 in the machine room 12, which is heated by 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 connecting piece 18, which extends upwards from the bottom of the recess 14, as well as a bowl or a cup 19 which is placed upside down over the free end of the connecting piece 18.
  • the circumferential wall 22 of the cup 19 can be provided with individual feet 23 which are located around the nozzle 18 at the bottom of the recess 14, here in one of the Nozzle 18 surrounding trench 24, support.
  • An electrical resistance heater 25 is attached to an outside of the trench 24 facing the thermal insulation layer 3 and can be operated together with a resistance heater 26 attached to the lamellar evaporator 9 in order to also thaw the water in the trench 24 in good time when the evaporator 9 is defrosted, so that a free drainage of the condensation water from the evaporator 9 via the condensate drain 16 to the evaporation tray 17 is guaranteed.
  • the trench 24 remains filled with water up to the upper edge 21 of the connector 18, so that as soon as the evaporator 9 cools again, the water in the trench 24 freezes and the siphon 15 is tightly sealed.
  • 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 oriented horizontally here above the recess 14 and below the lamellar evaporator 9 arranged.
  • a rod-shaped heater could also be provided in its place and, in particular, could be oriented in a straight line perpendicular to the cutting plane or run in meanders in a horizontal plane.
  • a second heater could be like heater 26 of the Fig. 2 arranged directly on the lamellar evaporator 9 and operated together with the resistance heater 27 in order to heat the evaporator 9 when the resistance heater 27 thaws the water in the siphon 15 at the same time.
  • the embodiment shown heats the infrared radiation emitted by the resistance heater 27 both the lamellar evaporator 9 and the siphon 15.
  • Infrared radiation emitted downward by the heater 27 is captured on the one hand by the cup 19 and on the other hand by the bottom of the recess 14.
  • the cup 19 emits the heat it has collected to the ice body 28 via the lower edge of the wall 22, which is immersed in the ice body 28 surrounding the nozzle 18. So that the condensation water flowing in from the evaporator 9 can run off, the ice body 28 does not have to be completely thawed; it is sufficient if the ice is continuously liquefied from the outside to the inside at one point along the circumference of the wall 22.
  • the walls 29 of the recess 14 sloping towards the siphon 15 and the low height of the connection 18 ensure that only a small part of the walls 29 around the connection 18 is covered by water at the end of each defrosting process; 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 is quickly heated by the radiation of the heater 27 during the next defrosting process.
  • the Walls 29 can be covered with a thin sheet metal 30 or a metal foil; in order to make the absorption of infrared radiation more effective, the sheet metal 30 and the cup 19 can each be provided with an infrared-absorbing coating 31.
  • Fig. 4 shows, as a third embodiment of the invention, a schematic section through a siphon 15 and its surroundings in a refrigeration device with an evaporator chamber 7 arranged horizontally under a ceiling 32 of the body.
  • the heater 27 here extends under a broad side of the lamellar evaporator 9 and can use this both by radiation as well as heating through direct contact.
  • An infrared-reflecting film 33 is arranged between a front area of the heater 27 and the wall 5 separating the evaporator chamber 7 from the storage chamber 6 in order to minimize the heat dissipation to the underlying wall 5 separating the evaporator chamber 7 from the storage chamber 6.
  • the film 33 and wall 5 slope towards the rear wall 8 in order to feed condensation water running off from the evaporator 9 to the recess 14, which is arranged here in a rear part of the wall 5.
  • a rear area 34 of the heater 27 protruding beyond the film 33 emits thermal radiation downwards to the recess 14 and the - here just as in the design of the Fig. 2 built - siphon 15 to heat.

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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)
  • Removal Of Water From Condensation And Defrosting (AREA)

Claims (11)

  1. Appareil de froid, en particulier appareil de froid ménager comprenant un espace intérieur (4) entouré d'une couche d'isolation thermique (3), divisé en une chambre de stockage (6) et une chambre d'évaporateur (7), un contenant intérieur qui sépare l'espace intérieur (4) de la couche d'isolation thermique (3), un évaporateur (9) refroidissant l'espace intérieur (4) et une évacuation de condensat (16) menant à l'air libre à partir de l'évaporateur (9) et à travers la couche d'isolation thermique (3), qui présente un siphon (15) disposé sur la face intérieure de la couche d'isolation thermique (3) sur le fond d'un renfoncement (14) du contenant intérieur dans la chambre d'évaporateur (7) et un chauffage de dégivrage (25, 27) pour chauffer le siphon (15),
    caractérisé en ce que le récipient interne est en plastique embouti et que le fond du renfoncement (14) est partiellement en métal (30) et doté d'une couche de surface (31) absorbant les rayons infrarouges.
  2. Appareil de froid selon la revendication 1, caractérisé en ce que le chauffage de dégivrage (25, 27) du siphon (15) est couplé de manière fonctionnelle à un chauffage de dégivrage (26, 27) pour l'évaporateur (9).
  3. Appareil de froid selon la revendication 1 ou 2, caractérisé en ce qu'un chauffage de dégivrage (27) commun est prévu pour l'évaporateur (9) et pour le siphon (15).
  4. Appareil de froid selon l'une des revendications précédentes, caractérisé en ce que le chauffage de dégivrage (25, 27) s'étend sur le renfoncement (14).
  5. Appareil de froid selon l'une des revendications précédentes, caractérisé en ce que le chauffage de dégivrage (25, 27) s'étend entre l'évaporateur (9) sur le renfoncement (14).
  6. Appareil de froid selon l'une des revendications précédentes, caractérisé en ce que le chauffage de dégivrage (25, 27) est en forme de plaques ou de barres.
  7. Appareil de froid selon l'une des revendications précédentes, caractérisé en ce que la chambre d'évaporateur (7) est disposée verticalement sur un dos de l'espace intérieur (4) et le chauffage de dégivrage (27) est formé en tant que chauffage rayonnant.
  8. Appareil de froid selon l'une des revendications précédentes, caractérisé en ce que le fond du renfoncement (14) est en pente en direction du siphon (15).
  9. Appareil de froid selon l'une des revendications précédentes, caractérisé en ce que le siphon (15) comprend une tubulure (18) faisant saillie au-dessus du fond du renfoncement (14) et comprend un bac évasé (19) au-dessus de la tubulure (18).
  10. Appareil de froid selon la revendication 9, caractérisé en ce qu'un bord inférieur du bac (19) repose à maximum 2 mm sous le bord supérieur (21) de la tubulure (18).
  11. Appareil de froid selon l'une des revendications précédentes, caractérisé en ce qu'une surface du siphon (15) tournée vers le chauffage de dégivrage (27) est dotée d'une couche de surface (31) absorbant les infrarouges.
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 EP3359891A1 (fr) 2018-08-15
EP3359891B1 true 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 (5)

* 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
WO2021047552A1 (fr) * 2019-09-12 2021-03-18 青岛海尔电冰箱有限公司 Réfrigérateur
DE102020209678A1 (de) 2020-07-31 2022-02-03 BSH Hausgeräte GmbH Kältegerät und Verfahren zum Montieren eines Ablaufverschlusses an einem Kühlgutbehälter eines Kältegeräts

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2531323A (en) * 1950-11-21 Refrigeration cabinet

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2531323A (en) * 1950-11-21 Refrigeration cabinet

Also Published As

Publication number Publication date
WO2017060066A1 (fr) 2017-04-13
PL3359891T3 (pl) 2021-06-14
CN108139138B (zh) 2021-04-09
EP3359891A1 (fr) 2018-08-15
CN108139138A (zh) 2018-06-08
DE102015219327A1 (de) 2017-04-13
US20190120540A1 (en) 2019-04-25

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