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

Refrigerator with blast chiller and quick freezer Download PDF

Info

Publication number: EP1074803B1
Authority: EP; European Patent Office
Prior art keywords: compartment; refrigerator; chambers; evaporator; freezer
Prior art date: 1999-08-05
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.)

1999-08-05

Filing date

2000-07-06

Publication date

2004-11-10

2000-07-06 Application filed by Candy SpA filed Critical Candy SpA

2001-02-07 Publication of EP1074803A2 publication Critical patent/EP1074803A2/en

2001-06-20 Publication of EP1074803A3 publication Critical patent/EP1074803A3/en

2004-11-10 Application granted granted Critical

2004-11-10 Publication of EP1074803B1 publication Critical patent/EP1074803B1/en

2020-07-06 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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.

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)

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
ITMI990499U		1999-08-05
IT1999MI000499U IT246893Y1 (it)	1999-08-05	1999-08-05	Frigorifero con abbattitore rapido di temperatura e congelatore rapido

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 (10)

* 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
WO2015043646A1 (en) *	2013-09-27	2015-04-02	Arcelik 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
CN110645753B (zh) *	2019-10-16	2024-12-17	长虹美菱股份有限公司	一种带有空气倍增风道的冰箱
FR3134880B1 (fr) *	2022-04-25	2024-04-26	Air Liquide	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

1999
- 1999-08-05 IT IT1999MI000499U patent/IT246893Y1/it active
2000
- 2000-07-06 ES ES00202390T patent/ES2231106T3/es not_active Expired - Lifetime
- 2000-07-06 DE DE60015666T patent/DE60015666T2/de not_active Expired - Fee Related
- 2000-07-06 EP EP00202390A patent/EP1074803B1/en not_active Expired - Lifetime

Also Published As

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

Publication	Publication Date	Title
WO2018121592A1 (zh)	2018-07-05	恒温冰箱及其控制方法
EP0377158B1 (en)	1995-11-15	Dual evaporator, dual fan refrigerator with independent temperature controls
US3793847A (en)	1974-02-26	Refrigeration apparatus
US5285655A (en)	1994-02-15	Refrigerator with freezer air directed over cooler compartment shelf
WO2018040442A1 (zh)	2018-03-08	冰箱
US20150247662A1 (en)	2015-09-03	Single Evaporator Refrigeration System For Multi-Compartment Refrigerator Appliance With Isolated Air Flows
KR19980030890A (ko)	1998-07-25	냉장고 쿡칠(Cook-chill) 시스템
WO2018040441A1 (zh)	2018-03-08	冰箱
JPH0252974A (ja)	1990-02-22	冷蔵庫
EP1074803B1 (en)	2004-11-10	Refrigerator with blast chiller and quick freezer
JP4646857B2 (ja)	2011-03-09	冷蔵庫
JP2005172303A (ja)	2005-06-30	冷蔵庫
EP1074802B1 (en)	2005-06-08	Refrigerator with compartment for the quick cooling of food
JPH05187756A (ja)	1993-07-27	冷蔵庫
EP1621831B1 (en)	2013-08-14	Freezer suitable to quickly cool food and refrigerator comprising said freezer
US3084520A (en)	1963-04-09	Refrigerating apparatus with defrosting controls
JP3461531B2 (ja)	2003-10-27	冷蔵庫
JP2772173B2 (ja)	1998-07-02	冷蔵庫
JP2007192446A (ja)	2007-08-02	冷蔵庫
JPH10288441A (ja)	1998-10-27	冷蔵庫
KR20170110871A (ko)	2017-10-12	냉장고 및 그 제어 방법
JP2007139296A (ja)	2007-06-07	冷蔵庫
JPH0327271Y2 (it)	1991-06-12
US7260957B2 (en)	2007-08-28	Damper for refrigeration apparatus
JPH0427475B2 (it)	1992-05-11

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