EP3034972A1 - Kühlvorrichtung, insbesondere für den haushaltsgebrauch, und herstellungsverfahren dafür - Google Patents

Kühlvorrichtung, insbesondere für den haushaltsgebrauch, und herstellungsverfahren dafür Download PDF

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Publication number
EP3034972A1
EP3034972A1 EP15199250.0A EP15199250A EP3034972A1 EP 3034972 A1 EP3034972 A1 EP 3034972A1 EP 15199250 A EP15199250 A EP 15199250A EP 3034972 A1 EP3034972 A1 EP 3034972A1
Authority
EP
European Patent Office
Prior art keywords
refrigeration
tray
duct
refrigeration appliance
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.)
Withdrawn
Application number
EP15199250.0A
Other languages
English (en)
French (fr)
Inventor
Pawel SOBCZAK
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.)
Whirlpool EMEA SpA
Original Assignee
Indesit Co SpA
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 Indesit Co SpA filed Critical Indesit Co SpA
Publication of EP3034972A1 publication Critical patent/EP3034972A1/de
Withdrawn legal-status Critical Current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
    • 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 for household use, according to the preamble of claim 1.
  • the present invention also relates to a method for manufacturing said refrigeration appliance.
  • the invention is applicable to the field of refrigeration appliances, in particular for household use, comprising at least one internal compartment for preserving foodstuffs.
  • a refrigeration appliance of the type known in the art typically comprises two internal refrigeration compartments kept at different temperatures, thus providing at least two different food preservation states, in particular a refrigerator compartment suitable for preserving fresh food at a temperature between 0°C and 10°C and a freezer compartment suitable for preserving frozen food at a temperature between -15°C and -30°C.
  • a refrigeration appliance is commonly referred to by those skilled in the art of household refrigeration as a “double-door” or “combined” refrigerator, depending on the relative position of the two refrigeration compartments; in a “double-door” refrigeration appliance, the freezer compartment is arranged above the refrigerator compartment, whereas in a “combined” refrigeration appliance the freezer compartment is located at the bottom.
  • refrigeration appliances can be either of the no-frost type or of the static type.
  • refrigeration appliances are equipped with a refrigerating circuit that comprises a compressor for compressing a refrigerating fluid and at least one evaporator for putting the refrigerating fluid in thermal contact with said at least one refrigeration compartment.
  • the refrigeration cycle is repeated multiple times and is typically interrupted by a control unit (usually connected to a thermostat), which turns off the compressor, in particular when the preset temperature is reached inside the refrigeration compartment of the appliance.
  • a control unit usually connected to a thermostat
  • no-frost refrigeration appliances the cold produced by the evaporator is yielded to an air flow lapping the evaporator, which, under the action of a fan, is circulated through the at least one refrigeration compartment. Since the surface of the evaporator has temperatures much lower than 0 °C, the moisture contained in the air in contact with said surface will turn into ice, which will accumulate on the evaporator.
  • defrosting is controlled electronically and consists, during appropriate operating steps referred to as defrost steps, in activating suitable heating means that will cause the accumulated ice to thaw.
  • Known refrigeration appliances also include a tray for collecting a liquid coming from a refrigeration compartment of the refrigeration appliance, said tray being connected to the refrigeration compartment by means of a duct that allows the liquid to be conveyed from the refrigeration compartment to the tray.
  • said collection tray is positioned in proximity to the compressor, in particular on top of the compressor.
  • Such an arrangement of the collection tray allows exploiting the heat generated by the compressor in order to cause at least a part of the liquid collected in the tray to evaporate into the surrounding environment.
  • the ice accumulated on the evaporator will thaw during the defrost step and will be conveyed towards said collection tray;
  • a similar tray is included in static refrigeration appliances for collecting the condensed water that forms on a wall (typically a rear wall) of the refrigeration appliance, through which heat is exchanged with the evaporator.
  • reference numeral 1 designates as a whole a refrigeration appliance, in particular for household use, according to the present invention.
  • Said refrigeration appliance 1 comprises at least one cabinet 2 adapted to define at least one refrigeration compartment 2A, 2B, 2C.
  • said at least one refrigeration compartment 2A, 2B, 2C may comprise a refrigerator compartment 2A for preserving fresh food (typically at a temperature between 0°C and 10°C) and a freezer compartment 2B for preserving frozen food (typically at a temperature between -15°C and -30°C); besides, in no-frost refrigeration appliances 1 said at least one refrigeration compartment 2A, 2B, 2C may comprise an additional refrigeration compartment 2C (shown in particular in Fig. 2a ) within the cabinet 2, adapted to contain at least one evaporator 31 and a fan 8.
  • the refrigeration appliance 1 may be so realized as to comprise just one refrigeration compartment 2A, 2B, 2C or a larger number of internal refrigeration compartments 2A, 2B, 2C, in particular comprising a plurality of refrigerator compartments 2A and/or freezer compartments 2B kept at different temperatures, thus allowing different food preservation states.
  • the refrigerator compartment 2A is located above the freezer compartment 2B; therefore, the refrigeration appliance 1 shown in Fig. 1 is of the "combined" type. It is however clear that, in accordance with the present invention, the relative positions of the refrigerator compartment 2A and freezer compartment 2B may be different; for example, the refrigeration appliance 1 may be of the "double-door” type (with the freezer compartment 2B on top of the refrigerator compartment 2A).
  • the refrigeration appliance 1 preferably comprises a first door 3A and a second door 3B for closing the refrigerator compartment 2A and the freezer compartment 2B, respectively; moreover, each door 3A, 3B is connected to the refrigeration appliance 1 by means of one or more hinges (not shown) that allow for constrained outward rotation of the door 3A, 3B for opening and closing the same (as shown in Fig. 1 ).
  • the refrigeration appliance 1 further comprises at least one gasket (not shown in Fig. 1 ) ensuring optimal coupling between said at least one door 3A, 3B and said at least one cabinet 2.
  • the representation of the refrigeration appliance 1 of Fig. 1 also shows some of the elements with which a refrigeration appliance 1 is commonly equipped, such as, for example, a plurality of shelves 4 and a plurality of containers 5 arranged at different heights in said refrigerator compartment 2A, and a plurality of drawers 6 and/or a plurality of shelves (not shown), which can be closed with a hinged front panel that can be rotated to allow the user to gain access to the shelf, arranged at different levels in said freezer compartment 2B.
  • Figure 1 also shows a number of door storage compartments 7 associated with said first door 3A of the refrigerator compartment 2A, said door storage compartments 7 being adapted to accommodate containers, bottles and foodstuffs.
  • Figures 2a and 2b schematically represent, respectively, a sectional view and a rear view of a refrigeration appliance 1 according to the present invention; in substance, Fig. 2b is a view of a portion of the refrigeration appliance 1 opposite to that where the doors 3A, 3B are connected to the refrigeration appliance 1.
  • the refrigeration appliance 1 comprises a tray 10 for collecting a liquid coming from said at least one refrigeration compartment 2A, 2B, 2C, said tray 10 being connected to said at least one refrigeration compartment 2A, 2B, 2C by means of at least one duct 20 that allows the liquid to be conveyed from the refrigeration compartment 2A, 2B, 2C to the tray 10.
  • FIG. 2a and 2b shows a portion of a refrigeration appliance 1 of the no-frost type, since the refrigeration appliance 1 comprises an additional refrigeration compartment 2C adapted to contain at least one evaporator 31 and a fan 8 for circulating a cold air flow for cooling the refrigerator compartment 2A and/or the freezer compartment 2B.
  • said at least one duct 20 is associated with the additional refrigeration compartment 2C inside the cabinet 2; it is however clear that said at least one duct 20 may also be associated with a refrigerator compartment 2A (shown in Fig. 1 ) and/or with a freezer compartment 2B for conveying the liquid from one of said refrigeration compartments 2A, 2B, 2C to the tray 10.
  • said at least one duct 20 may be made of plastic material, in particular of the corrugated type; it is however clear that the duct 20 may also be made differently.
  • the tray 10 is positioned in proximity to a compressor 30 belonging to a refrigerating circuit (not shown in the annexed drawings) of the refrigeration appliance 1; such an arrangement of the collection tray 10 allows exploiting the heat generated by the compressor 30 for causing the evaporation into the surrounding environment of at least a part of the liquid collected in the tray 10 and coming from the refrigeration compartment 2A, 2B, 2C.
  • said tray 10 is positioned above the compressor 30, in particular with reference to the installed condition of the refrigeration appliance 1.
  • the tray 10 may also be positioned otherwise; nevertheless, it shall be so arranged as to be able to exploit the heat generated by said compressor 30 for the purpose of causing the evaporation of at least a part of the liquid coming from the refrigeration compartment 2A, 2B, 2C.
  • said at least one duct 20 comprises a siphon 21 that holds a portion of the liquid coming from the refrigeration compartment 2A, 2B, 2C and constitutes an obstacle, in particular of the hydraulic type, to the passage of air from the environment outside the refrigeration appliance 1 to the inside of said refrigeration compartment 2A, 2B, 2C.
  • the siphon 21 of the duct 20 has a substantially circular shape. It is however clear that said siphon 21 may also have a different shape, e.g. a "U” or "S" shape.
  • said peculiar design of said at least one duct 20, which comprises a siphon 21, according to the present invention allows providing a refrigeration appliance 1, in particular for household use, which is particularly efficient and economical.
  • the provision of the siphon 21 according to the present invention prevents environmental air, with its typical moisture content, from coming in contact with the inner walls of the refrigeration compartment 2A, 2B, 2C and with the internal components of the refrigeration appliance 1 through the duct 20, which would lead to undesired icing.
  • the siphon 21 avoids an increase in the noise produced by the components included in the refrigeration appliance 1, while also preventing them from seizing.
  • the refrigeration appliance 1 is of the no-frost type (as shown in Figures 2a and 2b ) and comprises an additional refrigeration compartment 2C inside the cabinet 2, adapted to contain a fan 8 possibly associated with at least one evaporator 31 belonging to the refrigerating circuit of the refrigeration appliance 1.
  • the provision of the siphon 21 prevents air from being sucked in from the outside environment through the duct 20 upon activation of said fan 8; as a consequence, the provision of the siphon 21 prevents increased noise and a possible seizure of the fan 8 caused by excessive icing.
  • said tray 10 comprises fixing means 11, 12 that allow said at least one duct 20 to be positioned correctly.
  • said fixing means may comprise:
  • said seat 11 is associated with a side wall 10L of the tray 10
  • said rod 12 is associated with a bottom wall 10I of said tray 10.
  • FIGS 2a and 2b show both the seat 11 and the rod 12; it is however clear that the tray 10 may comprise just one of said fixing means.
  • refrigeration appliance 1 A method for manufacturing a refrigeration appliance 1, in particular for household use, will now be described, said refrigeration appliance 1 comprising:
  • said method comprises a step of realizing said at least one duct 20 in such a way that it comprises a siphon 21 that holds a portion of the liquid coming from the refrigeration compartment 2A, 2B, 2C and constitutes an obstacle, in particular of the hydraulic type, to the passage of air from the environment outside the refrigeration appliance 1 to the inside of said refrigeration compartment 2A, 2B, 2C.
  • said step is obtained by realizing said siphon 21 in such a way that it has a substantially circular shape.
  • the method according to the present invention envisages that said tray 10 be realized in such a way as to comprise fixing means 11, 12 that will allow said at least one duct 20 to be positioned correctly.
  • said tray 10 be so realized as to comprise:
  • the method according to the present invention envisages that said tray 10 be positioned in proximity to a compressor 30 belonging to a refrigerating circuit of the refrigeration appliance 1, in particular said tray 10 being positioned on top of the compressor 30.
  • the provision of the siphon 21 of the duct 20 according to the present invention allows providing a refrigeration appliance 1 which is so realized as to prevent environmental air, with its typical moisture content, from coming in contact with the inner walls of the refrigeration compartment 2A, 2B, 2C and with the components of the refrigeration appliance 1 through the duct 20, which would lead to undesired icing.
  • the siphon 21 avoids an undesired increase in the noise produced by the components included in the refrigeration appliance 1, while also preventing them from seizing.
  • this provision turns out to be particularly advantageous when the refrigeration appliance 1 is of the no-frost type, since the siphon 21 prevents the fan 8, when turned on, from sucking in environmental air through the duct 20, which would otherwise enter the refrigeration compartment 2A, 2B, 2C and cause the above-mentioned icing-related problems.

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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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP15199250.0A 2014-12-18 2015-12-10 Kühlvorrichtung, insbesondere für den haushaltsgebrauch, und herstellungsverfahren dafür Withdrawn EP3034972A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO20141062 2014-12-18

Publications (1)

Publication Number Publication Date
EP3034972A1 true EP3034972A1 (de) 2016-06-22

Family

ID=52464518

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15199250.0A Withdrawn EP3034972A1 (de) 2014-12-18 2015-12-10 Kühlvorrichtung, insbesondere für den haushaltsgebrauch, und herstellungsverfahren dafür

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EP (1) EP3034972A1 (de)
RU (1) RU2015154469A (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1768599A (en) * 1927-10-17 1930-07-01 Frigidaire Corp Refrigerating apparatus
FR1330208A (fr) * 1962-05-07 1963-06-21 Perfectionnements aux dispositifs d'évacuation
DE202005014380U1 (de) * 2005-09-12 2006-01-05 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit Wasserablauf
DE202005018725U1 (de) * 2005-11-30 2006-02-09 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit Siphon
DE102006018423A1 (de) * 2006-04-20 2007-10-25 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit einem Kondensatablaufsystem
DE102009028775A1 (de) * 2009-08-21 2011-02-24 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit einem Abtauwasserkanal und einem Siphon

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1768599A (en) * 1927-10-17 1930-07-01 Frigidaire Corp Refrigerating apparatus
FR1330208A (fr) * 1962-05-07 1963-06-21 Perfectionnements aux dispositifs d'évacuation
DE202005014380U1 (de) * 2005-09-12 2006-01-05 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit Wasserablauf
DE202005018725U1 (de) * 2005-11-30 2006-02-09 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit Siphon
DE102006018423A1 (de) * 2006-04-20 2007-10-25 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit einem Kondensatablaufsystem
DE102009028775A1 (de) * 2009-08-21 2011-02-24 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät mit einem Abtauwasserkanal und einem Siphon

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Publication number Publication date
RU2015154469A (ru) 2017-06-22

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