EP3450887A1 - Kühlschrank - Google Patents

Kühlschrank Download PDF

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Publication number
EP3450887A1
EP3450887A1 EP18188112.9A EP18188112A EP3450887A1 EP 3450887 A1 EP3450887 A1 EP 3450887A1 EP 18188112 A EP18188112 A EP 18188112A EP 3450887 A1 EP3450887 A1 EP 3450887A1
Authority
EP
European Patent Office
Prior art keywords
storage compartment
back wall
shutters
refrigerator
channel
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
EP18188112.9A
Other languages
English (en)
French (fr)
Other versions
EP3450887B1 (de
Inventor
Jacquelline Marques da SILVA
Edson Adriano Da Silva
Rogerio Rodriques Junior
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 SA
Original Assignee
Whirlpool SA
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 Whirlpool SA filed Critical Whirlpool SA
Publication of EP3450887A1 publication Critical patent/EP3450887A1/de
Application granted granted Critical
Publication of EP3450887B1 publication Critical patent/EP3450887B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
    • 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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/061—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation through special compartments
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts

Definitions

  • the present invention relates to a refrigerator and, more particularly, a refrigerator provided with a storage compartment capable of being cooled directly or indirectly, the form of cooling of said storage compartment being selectively defined either by a user or automatically.
  • Refrigerators which comprise refrigeration chambers for the storage of fruits and similar food items are also widely-known.
  • this type of compartment is directly refrigerated, that is cold air generated in the vicinity of the evaporator is directly conveyed, by way of forced ventilation, into the compartment, directly contacting the food items to be quickly cooled or frozen.
  • this type of compartment presents mild temperature and high relative humidity.
  • Refrigerators which comprise multifunctional compartments, i.e. compartments that can be either directly or indirectly refrigerated for the storage of fruit and similar food items or for the rapid cooling/freezing of specific food items are also known.
  • patent document EP1813893 briefly describes a refrigerator including a compartment for rapid refrigeration of packaged food items.
  • the compartment comprises means dedicated to the optimization of heat transfer when used for the specific storage of fruits, vegetables and similar food items.
  • the internal temperature of the compartment is largely not associated with the internal temperature of the other chambers which comprise the refrigerator.
  • the refrigerator comprises a storage compartment provided with thermally-insulating walls, at least one shutter and at least one air-blowing duct capable of blowing cold air from at least one source of cold air to the surroundings of the storage compartment.
  • the refrigerator comprises at least one heat conduction medium solidly disposed in the storage compartment, said heat conduction medium being arranged between at least one of the walls forming part of the storage compartment and at least one of the thermally-insulating walls.
  • said heat conduction medium is composed of at least one thermal conduction plate and at least one thermal convection fin.
  • the refrigerator is a no-frost or frost-free type refrigerator, i.e. it comprises a unified cold air production unit (not shown) and air-blowing ducts (not shown) by way of which it is possible to supply cold air to any chambers (not shown) of the refrigerator.
  • a no-frost or frost-free type refrigerator i.e. it comprises a unified cold air production unit (not shown) and air-blowing ducts (not shown) by way of which it is possible to supply cold air to any chambers (not shown) of the refrigerator.
  • the constructive possibilities of this type of refrigerator are widely known to those skilled in the art.
  • the refrigerator of the invention comprises at least one storage compartment 1 that can be configured to be used as a fruit compartment, featuring a moderate internal temperature and a high relative humidity, or as a fast cooling/freezing compartment, featuring a low internal temperature and a low relative humidity.
  • the storage compartment 1 When configured to store fruit, the storage compartment 1 assumes an "isolated mode of operation" whereby its internal environment is fully separated from the other environments of the refrigerator.
  • the storage compartment 1 When configured as a fast cooling/freezing compartment, the storage compartment 1 assumes an "equalized mode of operation" whereby its internal environment receives cold air from the unified cold air production unit from at least one air-blowing duct 6 fluidly communicating with the storage compartment 1.
  • the storage compartment 1 is formed by separate walls, which are integrally attached to thermally-insulating walls 21, 22, 23, 5.
  • the thermally-insulating front wall 23 comprises the door itself which gives access to the interior of the storage compartment 1.
  • the thermally-insulating upper 21 and lower 22 walls comprise mere sheets of thermal insulation material such as, for example, Expanded Polystyrene (EPS).
  • EPS Expanded Polystyrene
  • a heat conduction medium 4 is associated with the thermally-insulating back wall 5 and is arranged in the storage compartment 1 as shown in Figure 1 .
  • the heat conduction medium 4 is preferably attached to the thermally-insulating back wall 5 of the storage compartment 1.
  • conventional fastening means such as, for example, glutinous resins in general may be used.
  • the thermal conduction plate 41 of the heat conduction medium 4 may be smaller than the thermally-insulating back wall 5 of the storage compartment 1 and, in this situation, the heat conduction medium 4 may further comprise a thermally-insulating frame 43 specially adapted to occupy the missing space.
  • the thermally-insulating back wall 5 comprises a cold airflow channel provided with at least one inlet 51 and at least one outlet 52, in addition to having a through span centrally arranged in a stretch of the cold airflow channel.
  • the storage compartment 1 further comprises shutters 7, e.g. two shutter 7 as shown in the drawings, which, when opened, define fluid communication between the channel of the back wall 5 and the storage compartment 1.
  • the shutters 7 may be of a pivotable type, which allows to have a simple and cheap structure.
  • the shutter can be advantageously biased in a closed position, wherein they are aligned with the back wall 5.
  • the back wall 5 has a through span at which the thermal conduction plate 41 of the heat conduction medium 4 is accommodated together with thermal convection fins 42 so that cold air flowing through the channel contacts the thermal convection fins 42 thus exchanging thermal energy in the form of heat with the storage compartment 1.
  • the shutters 7 can selectively prevent or allow fluid communication between the storage compartment 1 and the cold airflow channel of the thermally-insulating back wall 5. It will also be appreciated that this arrangement makes it possible to selectively configure the storage compartment 1 either in the "isolated mode of operation" or in the "equalized mode of operation” defined above, as it will be explained in greater detail in the following.
  • Figure 5 shows the storage compartment 1 in the "isolated mode of operation", whereby the shutters 7 are in a closed position aligned with the back wall, and cold air flows within the channel of the thermally-insulating back wall 5, but cannot enter the storage compartment 1.
  • the storage compartment 1 can be used as a fruit compartment, because the separation from the cold air flowing in the channel of the back wall 5 allows to maintain an internal temperature e.g. around 4°C and a high relative humidity.
  • Figure 6 shows the storage compartment 1 in an "equalized mode of operation", whereby the shutters 7 are arranged transverse to the channel of the back wall 5 thus establishing fluid communication between the channel and the storage compartment 1.
  • cold air can enter the storage compartment through one of the shutters 7, thus allowing to promote cooling of the food items stored therein.
  • the storage compartment 1 selectively assumes one of these two configurations depending on the position of the shutters 7.
  • said shutters 7 may comprise traditional shutters
  • the selection among the modes of operation of the storage compartment 1 can be performed manually (manual operation of the shutters 7) or in an automated manner (electronic operation of the shutters 7).
  • the operation mode of the storage compartment 1 can be manually changed by way of a movable utensil arranged inside the storage compartment 1, for example a basket 3 configured to be accommodated therein.
  • the basket 3 comprises a plurality of slots 31 which allow air to flow therein.
  • the basket 3 comprises at least two projections 32 space apart from each other and arranged so as to cooperate with the shutters 7.
  • the shutters 7 can be advantageously configured as pivotable members and are normally biased in a closed position, e.g. by way of respective torsion springs, whereby the channel of the back wall 5 is normally fluidly separated from the storage compartment 1.
  • the projections 32 contact the shutters 7 and push them open into the channel of the back wall 5, thus establishing fluid communication between the channel and the storage compartment 1 and therefore changing its configuration from the isolated mode of operation ( Figure 5 ) to the equalized mode of operation ( Figure 6 ).
  • the arrows in Figures 5 and 6 show the airflow path.

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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP18188112.9A 2017-08-30 2018-08-08 Kühlschrank Active EP3450887B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR102017018601A BR102017018601A8 (pt) 2017-08-30 2017-08-30 refrigerador

Publications (2)

Publication Number Publication Date
EP3450887A1 true EP3450887A1 (de) 2019-03-06
EP3450887B1 EP3450887B1 (de) 2020-03-25

Family

ID=63207564

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18188112.9A Active EP3450887B1 (de) 2017-08-30 2018-08-08 Kühlschrank

Country Status (2)

Country Link
EP (1) EP3450887B1 (de)
BR (1) BR102017018601A8 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5228499A (en) * 1990-10-15 1993-07-20 Samsung Electronics Co., Ltd. Refrigerator including a fermentation and ensilage compartment, and the control method thereof
EP0893660A2 (de) * 1997-07-26 1999-01-27 Samsung Electronics Co., Ltd. Kühlschrank
EP1813893A2 (de) 2006-01-14 2007-08-01 Samsung Electronics Co., Ltd. Unterkühlvorrichtung, Kühlschrank und Ansteuerverfahren dafür
EP2530408A2 (de) * 2011-05-31 2012-12-05 LG Electronics, Inc. Kühlschrank

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5228499A (en) * 1990-10-15 1993-07-20 Samsung Electronics Co., Ltd. Refrigerator including a fermentation and ensilage compartment, and the control method thereof
EP0893660A2 (de) * 1997-07-26 1999-01-27 Samsung Electronics Co., Ltd. Kühlschrank
EP1813893A2 (de) 2006-01-14 2007-08-01 Samsung Electronics Co., Ltd. Unterkühlvorrichtung, Kühlschrank und Ansteuerverfahren dafür
EP2530408A2 (de) * 2011-05-31 2012-12-05 LG Electronics, Inc. Kühlschrank

Also Published As

Publication number Publication date
EP3450887B1 (de) 2020-03-25
BR102017018601A2 (pt) 2019-03-19
BR102017018601A8 (pt) 2019-11-26

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