EP1074803B1 - Refrigerator with blast chiller and quick freezer - Google Patents

Refrigerator with blast chiller and quick freezer Download PDF

Info

Publication number
EP1074803B1
EP1074803B1 EP00202390A EP00202390A EP1074803B1 EP 1074803 B1 EP1074803 B1 EP 1074803B1 EP 00202390 A EP00202390 A EP 00202390A EP 00202390 A EP00202390 A EP 00202390A EP 1074803 B1 EP1074803 B1 EP 1074803B1
Authority
EP
European Patent Office
Prior art keywords
compartment
refrigerator
chambers
evaporator
freezer
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.)
Expired - Lifetime
Application number
EP00202390A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1074803A2 (en
EP1074803A3 (en
Inventor
Silvano Fumagalli
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.)
Candy SpA
Original Assignee
Candy 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 Candy SpA filed Critical Candy SpA
Publication of EP1074803A2 publication Critical patent/EP1074803A2/en
Publication of EP1074803A3 publication Critical patent/EP1074803A3/en
Application granted granted Critical
Publication of EP1074803B1 publication Critical patent/EP1074803B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/06—Several compression cycles arranged in parallel
    • 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
    • F25D2317/065—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 the air return
    • F25D2317/0653—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 the air return through the mullion
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/04—Refrigerators with a horizontal mullion
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/14—Refrigerator multi units
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/30—Quick freezing

Definitions

  • the present invention refers to a refrigerator with compartment for the quick cooling of the food, more in particular to a refrigerator for home use.
  • Current refrigerators for home use normally comprise at least two compartments at a different temperature, one at higher temperature (typically between + 3°C and +6°C) for fresh food and the other at lower temperature (typically - 18°C) for frozen and deep frozen food.
  • Each one of the two compartments is provided with a respective evaporator, or with a respective portion of a same evaporator, that is part of an ordinary refrigeration circuit with compressor and condenser.
  • refrigerators are generally "no frost", that is equipped with means that are suitable to prevent the formation of frost on the wall of the evaporator. For such reason in the compartment with low temperature a so-called “ventilated” evaporator is provided, that is subject to forced air circulation.
  • each food that has previously been cooked at a temperature higher than or equal to 90°C, begins to deteriorate irreversibly due to the quick proliferation of the bacteria present in the air and of the spores that survived the cooking.
  • the temperature range inside which the maximum bacterial development takes place is comprised between + 70°C and + 3°C.
  • blast chillers are used that allow to bring the temperature at the core of the food from + 70°C to + 3°C in 90 minutes. In this way it is possible to slow down the process of ageing of the product, that can be preserved in the refrigerator for 5/ 7 days.
  • Both the blast chillers and the quick freezer are usually part of a single appliance, and this appliance is realised in a way separate from home refrigerators.
  • US-A-5 896 753 discloses a refrigerator as defined in the pre-characterizing part of claim 1.
  • object of the present invention is to realise a home refrigerator that comprises at least one compartment that functions both as blast chiller and as quick freezer.
  • a refrigerator that comprises at least one compartment that serves as a blast chiller and as a quick freezer and that works independently from the other compartments of the refrigerator.
  • FIG 1 there is shown a refrigerator having compartments 1, 2, 3 inside a common cabinet 4 that are positioned respectively from the top to the bottom of the cabinet.
  • the compartments 1 and 2 respectively at lower (freezer) and at higher temperature, are separate by a horizontal dividing wall 5 and they are closed by respective independent doors 60 and 6.
  • an evaporator 11 is set that is part of a refrigeration circuit 12 different from the refrigeration circuit 13 that provides for the cooling of the compartments 1 and 2.
  • Such refrigeration circuit 12 comprises a compressor 14, a filter 15, a condenser 16 and flow laminators 17.
  • the chambers 8 and 9 of the compartment 3 are provided with respective separate openings 20 and 21 for the flow of the cold air that is made circulate by the fan 18 and by relative ducts for the outlet of the air 22 and 23 that convey the air through a duct 25 into the evaporator 11.
  • said chambers 8 and 9 are provided with thermostats 26 and 27 the first one of which controls the opening and closing movement of a plug 24 that controls the opening 20 while the second one controls the operation of the motor of the compressor 14, in a such way so as to adjust the temperature inside the compartments according to an established temperature.
  • a suitable electric circuit shown in Figure 3 that comprises a pair of feed terminal 28 and 29 between which the motor 19 for the operation of the fan 18 is interposed.
  • the parallel of the thermostats 26 and 27 is connected that are in turn connected with the motor of the compressor 14.
  • the compartments 1 and 2 are part of a traditional "no-frost" type refrigerator the operation of which is known.
  • the compartment 3 works by the following operative way.
  • the thermostats 26 and 27 are in closing position, therefore the compressor 14 is operating and it allows the evaporator 11 to subtract heat from the environment in which it is housed.
  • the thermostat 26 keeps the plug 24 in opening position.
  • the fan 18 is operating and it determines a forced air circulation (shown by the arrows in Figure 1) along the evaporator 11 and in the two chambers 8 and 9, respectively passing through the openings 20 and 21, the chambers 8 and 9 the ducts 22 and 23 and the back flow duct 25. This air circulation prevents the formation of frost.
  • the thermostat 26 gets to an opening position and it controls the closing of the plug 24 by means of an appropriate actuator. In this way the air circulates only through the chamber 9.
  • the thermostat 27 gets to the opening position with consequent stopping of the compressor 14 and the refrigeration circuit 12 enters a defrost stage.
  • a variation of the embodiment of the present invention described in Figure 4 presents a different positioning of the compartment 3 inside the cabinet 4.
  • the compartment 3 is interposed between the freezer compartment 1 and the compartment 2 with relative solutions in order to prevent the different circulations of air of the compartment 3 and of the compartments 1 and 2 to cross.
  • the operation of the compartment 3 is similar to the one above described.
  • thermometers provided with rod probes it is possible to use thermometers provided with rod probes to be placed inside the same food.
EP00202390A 1999-08-05 2000-07-06 Refrigerator with blast chiller and quick freezer Expired - Lifetime EP1074803B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1999MI000499U IT246893Y1 (it) 1999-08-05 1999-08-05 Frigorifero con abbattitore rapido di temperatura e congelatore rapido
ITMI990499U 1999-08-05

Publications (3)

Publication Number Publication Date
EP1074803A2 EP1074803A2 (en) 2001-02-07
EP1074803A3 EP1074803A3 (en) 2001-06-20
EP1074803B1 true EP1074803B1 (en) 2004-11-10

Family

ID=11382247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00202390A Expired - Lifetime EP1074803B1 (en) 1999-08-05 2000-07-06 Refrigerator with blast chiller and quick freezer

Country Status (4)

Country Link
EP (1) EP1074803B1 (it)
DE (1) DE60015666T2 (it)
ES (1) ES2231106T3 (it)
IT (1) IT246893Y1 (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPN20030021A1 (it) * 2003-03-12 2004-09-13 Electrolux Home Products Corporatio N N V Congelatore perfezionato con cella separata.
KR100761357B1 (ko) * 2006-07-21 2007-09-27 주식회사 대우일렉트로닉스 온도 전환실을 갖는 냉장고의 냉기순환구조 및 이의제어방법
US8042355B2 (en) * 2006-12-28 2011-10-25 Whirlpool Corporation Temporary refrigerator storage modules
WO2008110516A2 (en) * 2007-03-15 2008-09-18 Arcelik Anonim Sirketi A cooling device
WO2012062845A2 (en) 2010-11-11 2012-05-18 Arcelik Anonim Sirketi A refrigerator the air circulation of which is controlled
EP3049737A1 (en) * 2013-09-27 2016-08-03 Arçelik Anonim Sirketi Refrigerator having circulation guiding structure enabling an improved thermal distribution profile
US9557092B1 (en) 2015-03-23 2017-01-31 Edward Robert Heussner Sub-0 home freezer
US10935299B2 (en) 2018-06-13 2021-03-02 Cedric Davis Quick freeze cooler
FR3134880A1 (fr) * 2022-04-25 2023-10-27 L'air Liquide , Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé optimisé de surgélation et de décongélation de produits alimentaires et autres produits thermosensibles en armoire de surgélation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659429A (en) * 1970-03-25 1972-05-02 Westinghouse Electric Corp Refrigerator-freezer with fast chill arrangement
FR2576676B1 (fr) * 1985-01-29 1987-02-27 Selnor Armoire frigorifique a trois compartiments
JP2686123B2 (ja) * 1988-12-27 1997-12-08 三洋電機株式会社 熱交換装置
US5896753A (en) * 1996-10-18 1999-04-27 Lg Electronics Inc. Freezing cycle apparatus having quick freezing and thawing functions

Also Published As

Publication number Publication date
IT246893Y1 (it) 2002-04-10
DE60015666D1 (de) 2004-12-16
ITMI990499U1 (it) 2001-02-05
ITMI990499V0 (it) 1999-08-05
EP1074803A2 (en) 2001-02-07
DE60015666T2 (de) 2005-11-03
ES2231106T3 (es) 2005-05-16
EP1074803A3 (en) 2001-06-20

Similar Documents

Publication Publication Date Title
WO2018121592A1 (zh) 恒温冰箱及其控制方法
EP0377158B1 (en) Dual evaporator, dual fan refrigerator with independent temperature controls
WO2018040442A1 (zh) 冰箱
US3793847A (en) Refrigeration apparatus
US5285655A (en) Refrigerator with freezer air directed over cooler compartment shelf
US20150247662A1 (en) Single Evaporator Refrigeration System For Multi-Compartment Refrigerator Appliance With Isolated Air Flows
KR19980030890A (ko) 냉장고 쿡칠(Cook-chill) 시스템
JPH0252974A (ja) 冷蔵庫
WO2018040441A1 (zh) 冰箱
JP4646857B2 (ja) 冷蔵庫
EP1074803B1 (en) Refrigerator with blast chiller and quick freezer
EP1074802B1 (en) Refrigerator with compartment for the quick cooling of food
JP2005172303A (ja) 冷蔵庫
JPH05187756A (ja) 冷蔵庫
JP2007139296A (ja) 冷蔵庫
EP1621831B1 (en) Freezer suitable to quickly cool food and refrigerator comprising said freezer
US3084520A (en) Refrigerating apparatus with defrosting controls
JP3461531B2 (ja) 冷蔵庫
JP2772173B2 (ja) 冷蔵庫
US7260957B2 (en) Damper for refrigeration apparatus
JPH10288441A (ja) 冷蔵庫
JP2007192446A (ja) 冷蔵庫
JPH0327271Y2 (it)
JPH0427475B2 (it)
JP2632103B2 (ja) 冷却貯蔵庫

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE ES FR GB IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20011204

AKX Designation fees paid

Free format text: DE ES FR GB IT

17Q First examination report despatched

Effective date: 20030923

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60015666

Country of ref document: DE

Date of ref document: 20041216

Kind code of ref document: P

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2231106

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20050811

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20080710

Year of fee payment: 9

Ref country code: ES

Payment date: 20080718

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20080731

Year of fee payment: 9

Ref country code: IT

Payment date: 20080711

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20080722

Year of fee payment: 9

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20090706

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090706

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100202

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20090707

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090707

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090706