EP1906119A1 - Appareil ménager pour la fourniture d'eau ou d'autres boissons réfrigérées et son procédé de fonctionnement - Google Patents

Appareil ménager pour la fourniture d'eau ou d'autres boissons réfrigérées et son procédé de fonctionnement Download PDF

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Publication number
EP1906119A1
EP1906119A1 EP06121582A EP06121582A EP1906119A1 EP 1906119 A1 EP1906119 A1 EP 1906119A1 EP 06121582 A EP06121582 A EP 06121582A EP 06121582 A EP06121582 A EP 06121582A EP 1906119 A1 EP1906119 A1 EP 1906119A1
Authority
EP
European Patent Office
Prior art keywords
beverage
water
tank
household appliance
cooled
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Withdrawn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
EP06121582A
Other languages
German (de)
English (en)
Inventor
Thomas Volker
Tancredi Ingrassia
Silvia Minetto
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.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
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 Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to EP06121582A priority Critical patent/EP1906119A1/fr
Priority to EP07114478A priority patent/EP1906120A1/fr
Priority to AU2007302344A priority patent/AU2007302344A1/en
Priority to PCT/EP2007/008143 priority patent/WO2008037383A1/fr
Publication of EP1906119A1 publication Critical patent/EP1906119A1/fr
Withdrawn legal-status Critical Current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
    • F25D23/00—General constructional features
    • F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
    • F25D23/126—Water cooler
    • 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
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C2301/00—Special arrangements or features for producing ice
    • F25C2301/002—Producing ice slurries
    • 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
    • F25C—PRODUCING, WORKING OR HANDLING ICE
    • F25C2400/00—Auxiliary features or devices for producing, working or handling ice
    • F25C2400/14—Water supply
    • 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/122—General constructional features not provided for in other groups of this subclass the refrigerator is characterised by a water tank for the water/ice dispenser
    • 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
    • F25D2331/00—Details or arrangements of other cooling or freezing apparatus not provided for in other groups of this subclass
    • F25D2331/80—Type of cooled receptacles
    • F25D2331/806—Dispensers

Definitions

  • the present invention relates to a household appliance for the supplying of cooled water or other beverage and to the relative operation method.
  • the present invention relates to a household cooled-drink dispenser integrated in a refrigerator to which the following description refers purely by way of example.
  • a built-in cooled-water dispenser which substantially comprises a tank for storing water or any other beverage to be dispensed; a cooling assembly for bringing the water inside the tank to, and maintaining it at, a predetermined reference temperature above the freezing temperature (i.e. 0°C) of water and normally ranging between 8°C and 15°C; and a metering valve located at a drink dispensing recess formed in the outer surface of the refrigerator door.
  • the valve is connected to the bottom of the tank by a connecting pipe, and is designed to only allow controlled outflow of water from the tank to the drink dispensing recess underneath when the recess is engaged by a glass or other container to receive the water.
  • the cooled-drink dispenser in fact can only dispense the water or any other beverage at the desired temperature after the tank has been filled by the user with the desired beverage, and after the cooling assembly has brought the beverage inside the tank to the set reference temperature.
  • the inside of the tank is an ideal receptacle for mould and bacteria, with all the risks this involves in the event the cooled-drink dispenser is only used sporadically, and the beverage is allowed to stagnate inside the tank for long periods of time.
  • a cooled-drink dispenser featuring a household appliance for the supplying of cooled water or other beverage as claimed in Claim 1 and preferably, though not necessarily, in any one of the dependent Claims.
  • number 1 indicates as a whole a household appliance for the supplying of cooled water or other beverage which can be used preferably, though not necessarily, as cooled-drink dispenser.
  • the household appliance 1 for the supplying of cooled water or other beverage is integrated in a cooled-drink dispenser 1 which in turn is integrated in a household refrigerator 2, preferably, though not necessarily, inside its door 3.
  • the household appliance 1 for the supplying of cooled water or other beverage substantially comprises a tank 4 for temporarily storing water or any other beverage to be dispensed; and a metering valve 5 which, in the example shown, is located at a drink dispensing recess 3a formed in the outer surface of door 3 of refrigerator 2, is connected to tank 4 by a connecting pipe 6, and is designed to only permit controlled outflow of water or any other beverage from tank 4 to recess 3a when recess 3a is engaged by a glass or other container to receive the water.
  • tank 4 is defined by an airtight container 4 housed, in the example shown, inside a compartment 3b formed in door 3 of refrigerator 2, above recess 3a, and the household appliance 1 or cooled-drink dispenser 1 also comprises a second connecting pipe 7 permanently connecting tank 4 to a source 8 of pressurized water or other beverage so as that tank 4 is always completely filled with water and does not contain air; a cooling assembly 9 which, on command, cools the liquid inside tank 4; and an electronic central control unit 10 which controls cooling assembly 9 on the basis of signals from a temperature sensor (not shown) for determining the temperature of the liquid inside tank 4, so as to bring the water or other beverage inside tank 4 to, and maintain it at, a reference temperature below or equal to the freezing temperature T 0 (i.e. 0°C) of water or other beverage.
  • T 0 freezing temperature
  • source 8 supplies water or any other beverage continuously at above atmospheric pressure
  • the household appliance 1 or cooled-drink dispenser 1 preferably, though not necessarily, also comprises an on-off valve 11 located along connecting pipe 7, upstream from tank 4, and which, on command, isolates tank 4 from source 8 to cut off flow of water or other beverage.
  • source 8 is defined by the drinking water circuit of the building in which refrigerator 2 is located.
  • Tank 4 is advantageously defined by a variable-capacity, airtight container 4.
  • tank 4 is defined by a tubular body made of elastically deformable material and closed hermetically at both ends by two caps of rigid material to form a variable-volume closed container.
  • the two caps are connected to the two connecting pipes 6 and 7 to allow water to flow from source 8 to metering valve 5 via the whole of tank 4.
  • tank 4 may be defined by a hermetically closed rigid container of constant internal volume and housing a closed capsule or container made of elastically deformable material and filled with gas.
  • cooling assembly 9 comprises a number of electric fans 9 which, on command, circulate, inside compartment 3b housing tank 4, a stream of cold air at a temperature below temperature T 0 and/or a stream of hot air at a temperature above temperature T 0 ; and electronic central control unit 10 controls fans 9 to alternate and/or mix the two air streams to bring the liquid inside tank 4 to, and maintain it at, around freezing temperature T 0 .
  • the stream of cold air may come from the freezer compartment of refrigerator 2 storing frozen food requiring a temperature of -25°C to -20°C, and the stream of hot air may come from the fresh-food compartment of refrigerator 2 storing fresh food requiring a temperature of 2°C to 8°C.
  • Fans 9 may obviously be replaced by a conventional heat-pump refrigeration circuit in which the evaporator is housed inside compartment 3b, close to tank 4, or by other refrigeration means.
  • the household appliance 1 or cooled-drink dispenser 1 also comprises a sensor 12 for determining and communicating to electronic central control unit 10 the amount of solid-state water or other beverage contained at all times inside tank 4; and means for preventing the formation of a single block of frozen liquid occupying the whole volume of tank 4 so as to obtain a biphasic (liquid state plus solid state) frozen liquid mixture, and preferably for assisting irregular, nonhomogeneous crystallization of the liquid inside tank 4, so as to obtain a semisolid, high-viscosity, frozen liquid mixture.
  • a sensor 12 for determining and communicating to electronic central control unit 10 the amount of solid-state water or other beverage contained at all times inside tank 4; and means for preventing the formation of a single block of frozen liquid occupying the whole volume of tank 4 so as to obtain a biphasic (liquid state plus solid state) frozen liquid mixture, and preferably for assisting irregular, nonhomogeneous crystallization of the liquid inside tank 4, so as to obtain a semisolid, high-viscosity, frozen liquid
  • the household appliance 1 or cooled-drink dispenser 1 comprises a freezing process control device 13 designed to force the liquid freezing inside tank 4 to crystallize irregularly and nonhomogeneously into a semisolid, high-viscosity mixture or slurry.
  • freezing process control device 13 is defined by an ultrasonic-frequency vibration emitter 13 positioned close to tank 4, and which, under the control of electronic central control unit 10, breaks up the ice or crystallized beverage formed in tank 4 to obtain said semisolid, high-viscosity mixture of frozen water or other beverage.
  • the formation of a block of ice or frozen beverage inside tank 4 may also be prevented by cyclically and locally heating areas of tank 4 under the control of electronic central control unit 10, e.g. by means of a number of appropriately controlled resistors arranged inside the tank, to prevent the ice or frozen beverage crystals from adhering permanently to and forming layers on the walls of the tank.
  • tank 4 may obviously also be designed and/or cooled to restrict the formation of ice or frozen beverage crystals to certain predetermined points on the wall of the tank.
  • freezing process control device 13 may be defined by an electrically operated propeller or stirring body housed inside tank 4 to keep the liquid inside the tank moving and detach the ice or frozen beverage crystals from the wall as they are formed.
  • electronic central control unit 10 controls cooling assembly 9 to bring the liquid inside tank 4 rapidly to below the freezing temperature T 0 of water and so freeze the liquid, and controls vibration emitter 13 (i.e. the means for preventing the formation of a block of frozen liquid inside tank 4) to force the water or other beverage freezing inside tank 4 to crystallize irregularly and nonhomogeneously into a biphasic or semisolid, high-viscosity, frozen drink mixture or slurry.
  • vibration emitter 13 i.e. the means for preventing the formation of a block of frozen liquid inside tank 4
  • electronic central control unit 10 continuously controls the percentage of water that has passed from the liquid state to the solid or semisolid frozen water mixture state inside tank 4, and controls cooling assembly 9 so that the percentage of water in the solid or semisolid mixture state does not exceed a predetermined maximum threshold ranging between 50% and 90% of the maximum capacity of tank 4, so as to ensure free circulation of the water at all times inside tank 4.
  • the household appliance 1 or cooled-drink dispenser 1 is ready to dispense cooled water as soon as a sufficient amount of solid or semisolid frozen water mixture is produced inside tank 4.
  • Insertion of a glass inside recess 3a in door 3 opens metering valve 5 to allow the water in tank 4 to flow along connecting pipe 6 into the glass.
  • Tank 4 being connected directly to pressurized-water source 8, the outflow of cooled water from tank 4 along connecting pipe 6 is accompanied by a simultaneous inflow into tank 4 of an equal amount of water at ambient temperature from source 8.
  • the water at ambient temperature from source 8 mixes with and partly melts the solid or semisolid frozen water mixture to form cooled water at a temperature of 8°C to 15°C (i.e. at a temperature below ambient temperature), which flows immediately along connecting pipe 6 into the glass.
  • Cooled-drink dispenser 1 in the form of the household appliance 1 obviously has numerous advantages. Above all, it provides for dispensing a quantity of cooled water, at a temperature ranging between 8°C and 15°C, much greater than the nominal capacity of tank 4, by using the solid or semisolid frozen water mixture as a thermal flywheel to rapidly cool the water from source 8.
  • tank 4 is always filled completely with water at a temperature of substantially 0°C considerably reduces the growth-rate of mould and bacteria.
  • the household appliance 1 or cooled-drink dispenser 1 may comprise, downstream from tank 4, an electrically operated hydraulic mixer 14 for mixing the cooled water flowing out of tank 4 along connecting pipe 6 with the ambient-temperature water from source 8.
  • hydraulic mixer 14 is a three-way mixer having a first inlet connected to tank 4 by connecting pipe 6; a second inlet connected to connecting pipe 7, upstream from tank 4 and downstream from on-off valve 11, by a bypass pipe 15; and one outlet connected to metering valve 5 by a connecting pipe 16.
  • electronic central control unit 10 controls hydraulic mixer 14 on the basis of signals from a temperature sensor for determining the temperature of the water supply to metering valve 5, so as to adjust the temperature of the water supplied to metering valve 5 by appropriately mixing the cooled water from tank 4 with the ambient-temperature water directly from source 8.
  • the household appliance 1 described above may have other uses.
  • it can be used for cooling down the water in entrance to a traditional icemaker.
  • metering valve 5 is replaced by a traditional electrically controlled throttle valve or on-off valve located just before the icemaker so as to control the outflow of the water from tank 4 to the icemaker.

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)
  • Devices For Dispensing Beverages (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP06121582A 2006-09-29 2006-09-29 Appareil ménager pour la fourniture d'eau ou d'autres boissons réfrigérées et son procédé de fonctionnement Withdrawn EP1906119A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP06121582A EP1906119A1 (fr) 2006-09-29 2006-09-29 Appareil ménager pour la fourniture d'eau ou d'autres boissons réfrigérées et son procédé de fonctionnement
EP07114478A EP1906120A1 (fr) 2006-09-29 2007-08-16 Appareil domestique pour la fourniture d'eau ou autres boissons refroidies et procédé de fonctionnement correspondant
AU2007302344A AU2007302344A1 (en) 2006-09-29 2007-09-19 Household appliance for the supplying of cooled water or other beverage and relative operation method
PCT/EP2007/008143 WO2008037383A1 (fr) 2006-09-29 2007-09-19 Appareil ménager destiné à la fourniture d'eau fraîche et d'autres boissons, et procédé d'utilisation de cet appareil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06121582A EP1906119A1 (fr) 2006-09-29 2006-09-29 Appareil ménager pour la fourniture d'eau ou d'autres boissons réfrigérées et son procédé de fonctionnement

Publications (1)

Publication Number Publication Date
EP1906119A1 true EP1906119A1 (fr) 2008-04-02

Family

ID=37758560

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06121582A Withdrawn EP1906119A1 (fr) 2006-09-29 2006-09-29 Appareil ménager pour la fourniture d'eau ou d'autres boissons réfrigérées et son procédé de fonctionnement

Country Status (3)

Country Link
EP (1) EP1906119A1 (fr)
AU (1) AU2007302344A1 (fr)
WO (1) WO2008037383A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2724095A1 (fr) * 2011-06-21 2014-04-30 Electrolux Home Products Corporation N.V. Appareil électroménager avec système de distribution de boissons, procédé et cartouche de filtre
DE102015204452A1 (de) * 2015-03-12 2016-09-15 BSH Hausgeräte GmbH Mixgetränkeeinheit für ein Kühlgerät
DE102016209791A1 (de) * 2016-06-03 2017-12-07 BSH Hausgeräte GmbH Vorrichtung zur Kühlung einer Flüssigkeit, sowie System zur Herstellung eines Getränks mittels einer gekühlten Flüssigkeit

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644318A (en) * 1950-01-06 1953-07-07 Gen Electric Water cooler for refrigerator
US2779165A (en) * 1954-01-19 1957-01-29 Gen Motors Corp Ice and water dispenser
US3270520A (en) * 1965-12-03 1966-09-06 Harvey N Geisler Water cooler for golf courses and the like
US3462970A (en) * 1968-03-18 1969-08-26 Howard Natter Portable soda fountain
US4745773A (en) * 1987-03-11 1988-05-24 Chubu Industries, Inc. Apparatus of making soft ice-drink
US4964542A (en) * 1988-11-14 1990-10-23 Bar-Master International Frozen beverage dispenser
WO1992020420A1 (fr) * 1991-05-03 1992-11-26 Elizabeth Acton Procede et dispositif pour maitriser la solidification de liquides
GB2329460A (en) * 1997-09-23 1999-03-24 Lg Electronics Inc Refrigerator dispenser assembly
WO2004102088A1 (fr) * 2003-05-16 2004-11-25 Elizabeth Acton Procede et appareil pour la congelation de grands volumes
WO2006048190A1 (fr) * 2004-11-08 2006-05-11 Unilever Plc Procede et appareil permettant de partiellement congeler un melange aqueux

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908394A (en) * 1974-11-14 1975-09-30 Gen Electric Water-dispensing system
KR950009356Y1 (ko) * 1991-04-17 1995-10-25 삼성전자 주식회사 냉장고의 냉수 저장탱크
JP2006176132A (ja) * 2004-12-20 2006-07-06 Expert Wave Kk 給水装置および過冷却等価水の製造方法

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644318A (en) * 1950-01-06 1953-07-07 Gen Electric Water cooler for refrigerator
US2779165A (en) * 1954-01-19 1957-01-29 Gen Motors Corp Ice and water dispenser
US3270520A (en) * 1965-12-03 1966-09-06 Harvey N Geisler Water cooler for golf courses and the like
US3462970A (en) * 1968-03-18 1969-08-26 Howard Natter Portable soda fountain
US4745773A (en) * 1987-03-11 1988-05-24 Chubu Industries, Inc. Apparatus of making soft ice-drink
US4964542A (en) * 1988-11-14 1990-10-23 Bar-Master International Frozen beverage dispenser
WO1992020420A1 (fr) * 1991-05-03 1992-11-26 Elizabeth Acton Procede et dispositif pour maitriser la solidification de liquides
GB2329460A (en) * 1997-09-23 1999-03-24 Lg Electronics Inc Refrigerator dispenser assembly
WO2004102088A1 (fr) * 2003-05-16 2004-11-25 Elizabeth Acton Procede et appareil pour la congelation de grands volumes
WO2006048190A1 (fr) * 2004-11-08 2006-05-11 Unilever Plc Procede et appareil permettant de partiellement congeler un melange aqueux

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2724095A1 (fr) * 2011-06-21 2014-04-30 Electrolux Home Products Corporation N.V. Appareil électroménager avec système de distribution de boissons, procédé et cartouche de filtre
DE102015204452A1 (de) * 2015-03-12 2016-09-15 BSH Hausgeräte GmbH Mixgetränkeeinheit für ein Kühlgerät
DE102016209791A1 (de) * 2016-06-03 2017-12-07 BSH Hausgeräte GmbH Vorrichtung zur Kühlung einer Flüssigkeit, sowie System zur Herstellung eines Getränks mittels einer gekühlten Flüssigkeit
WO2017207246A1 (fr) 2016-06-03 2017-12-07 BSH Hausgeräte GmbH Dispositif de refroidissement d'un liquide, et système de fabrication d'une boisson au moyen d'un liquide refroidi

Also Published As

Publication number Publication date
AU2007302344A1 (en) 2008-04-03
WO2008037383A1 (fr) 2008-04-03

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