EP0600845A2 - Armoire de congélation de présentation, avec un rideau d'air vertical - Google Patents

Armoire de congélation de présentation, avec un rideau d'air vertical Download PDF

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Publication number
EP0600845A2
EP0600845A2 EP93850207A EP93850207A EP0600845A2 EP 0600845 A2 EP0600845 A2 EP 0600845A2 EP 93850207 A EP93850207 A EP 93850207A EP 93850207 A EP93850207 A EP 93850207A EP 0600845 A2 EP0600845 A2 EP 0600845A2
Authority
EP
European Patent Office
Prior art keywords
air
duct
cooling element
fan
goods
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.)
Ceased
Application number
EP93850207A
Other languages
German (de)
English (en)
Other versions
EP0600845A3 (en
Inventor
Karl Gunnar Lilja
Bertil Iverlund
Lars-Ake Wickman
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 AB
Original Assignee
Electrolux AB
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 AB filed Critical Electrolux AB
Publication of EP0600845A2 publication Critical patent/EP0600845A2/fr
Publication of EP0600845A3 publication Critical patent/EP0600845A3/en
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0439—Cases or cabinets of the open type
    • A47F3/0443—Cases or cabinets of the open type with forced air circulation
    • A47F3/0447—Cases or cabinets of the open type with forced air circulation with air curtains

Definitions

  • the invention refers to a freezer display cabinet showing a substantially vertical rear wall, a plurality of shelves for storing goods at freezing temperature arranged above each other along the wall, a first air duct extending from a first place at the front edge of the lowest shelf, in substantially horizontal direction under the lowest shelf, in substantially vertical direction behind the rear wall and in substantially horizontal direction above the uppermost shelf to a second place above the front edge of the uppermost shelf, a first fan to circulate air through the duct to the second place, from where the air moves downwards i an air curtain outside the front edges of the shelves to the first place and a cooling element to cool the air circulating through the duct to freezing temperature, the cooling element being defrosted by the fan circulating heated air through the duct.
  • the object of the invention is to improve the known cabinet such, that this temperature difference of goods at different places in the cabinet decreases.
  • This object is attained in the freezer display cabinet according to the invention by openings in the rear wall to bring about air flows from the first air duct through the spaces formed between the shelves and by means for shutting off the air flows, when the cooling element is defrosted.
  • the goods will also be flowed through by cooling air, whereby the heat transfer from the goods to the cooling air being improved resulting in that the temperature difference between goods on different places in the cabinet decreases.
  • the air flows are shut off during the defrosting of the cooling element in order that the humid defrosting air, which then appears, shall not flow through the frozen goods and form frost on them.
  • By 10 is designated a freezer display cabinet with spaces 12, in which goods, which are stored at freezing temperature (about -18°C) on shelves 14, are available through a vertical access opening 16.
  • the spaces 12 are surrounded by a duct 18, im which a fan 20 and a cooling element 22 are located.
  • the fan 20 circulates air through the duct 18 from a first place 24 at the lower front edge of the lowest space 12 through the cooling element 22, which cools the air, to a second place 25 at the upper front edge of the uppermost space 12, from where the air moves downwards in front of the spaces 12 in an air curtain 26, which cools the goods, to the first place 24.
  • the goods are also cooled by air, which has been cooled by the cooling element 22 and after that is sucked by a fan 28 into a duct 30 arranged behind a rear wall 32 of the spaces 12, from which duct 30 the fan 28 brings the air to flow through openings 34 in the rear wall 32, from where the air passes between the goods in substantially horizontal direction and after that is united to the air curtain 26.
  • the air curtain 26 is heated by the surroundings of the cabinet during its movement from the second place 25 to the first place 24, goods in spaces 12 located at a lower level thereby becoming less cooled by the air curtain 26 than goods in spaces 12 located at a higher level.
  • This poorer cooling is compensated thereby that one lets the air flows through the openings 34 become larger through spaces 12 located at a lower level, e.g. thereby that one arranges more openings 34 here, than through spaces 12 located at higher levels.
  • a signal is given to a means 36, which puts the cooling element 22 out of operation, activates a heating element 38 and stops the fan 28.
  • the fan 20 continues at this to circulate air, which now is heated by the element 38, through the duct 18, the cooling element 22 and the curtain 26.
  • the humid defrosting air which now is circulated by the fan 20, is prevented from flowing via the openings 34 through the goods and form frost on them.
  • Throttle valves which are not shown, can also be arranged to break the communication between the ducts 18 and 30 during the defrosting period.
  • fans 40 circulate uncooled air in one or more further air curtains 42 outside the curtain 26.
EP93850207A 1992-11-30 1993-11-02 Freezer display cabinet with a vertical air curtain. Ceased EP0600845A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9203595A SE505561C2 (sv) 1992-11-30 1992-11-30 Frysdisk med ovanför varandra anordnade hyllor och med anordning för avfrostning av dess kylelement
SE9203595 1992-11-30

Publications (2)

Publication Number Publication Date
EP0600845A2 true EP0600845A2 (fr) 1994-06-08
EP0600845A3 EP0600845A3 (en) 1997-05-21

Family

ID=20387974

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93850207A Ceased EP0600845A3 (en) 1992-11-30 1993-11-02 Freezer display cabinet with a vertical air curtain.

Country Status (2)

Country Link
EP (1) EP0600845A3 (fr)
SE (1) SE505561C2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2787979A1 (fr) 1998-12-31 2000-07-07 Abc Synergie Meuble frigorifique de vente equipe d'un rideau d'air dedouble a debit constant
EP1629750A1 (fr) * 2004-08-24 2006-03-01 Hussmann Corporation Présentoir distributeur réfrigéré avec un déchargement aérien dans la partie arrière de l'étagère frigorifique actionné par un ventilateur
RU2650401C2 (ru) * 2013-05-10 2018-04-11 Эплайд Дизайн Энд Инжиниринг Лтд Приспособления для охлаждаемых витрин
US10314411B2 (en) 2016-05-25 2019-06-11 Hussmann Corporation Refrigerated merchandiser with airflow support system
KR102563935B1 (ko) * 2023-06-16 2023-08-07 주식회사 밤일마을제주흑돈 냉장 보관용 쇼케이스

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1282235A (fr) * 1960-12-27 1962-01-19 Hussmann Refrigerator Co Vitrine réfrigérée à basse température et procédé pour réfrigérer une zone où sont déposés des produits jusqu'à une basse température
GB2163244A (en) * 1984-08-13 1986-02-19 Sanden Corp Refrigerated display cabinet
GB2231947A (en) * 1989-05-18 1990-11-28 Clares Equip Ltd Improvements related to refrigerated display units
GB2247741A (en) * 1990-09-04 1992-03-11 Craig Nicol Ltd Refrigerated food cabinet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1282235A (fr) * 1960-12-27 1962-01-19 Hussmann Refrigerator Co Vitrine réfrigérée à basse température et procédé pour réfrigérer une zone où sont déposés des produits jusqu'à une basse température
GB2163244A (en) * 1984-08-13 1986-02-19 Sanden Corp Refrigerated display cabinet
GB2231947A (en) * 1989-05-18 1990-11-28 Clares Equip Ltd Improvements related to refrigerated display units
GB2247741A (en) * 1990-09-04 1992-03-11 Craig Nicol Ltd Refrigerated food cabinet

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2787979A1 (fr) 1998-12-31 2000-07-07 Abc Synergie Meuble frigorifique de vente equipe d'un rideau d'air dedouble a debit constant
EP1629750A1 (fr) * 2004-08-24 2006-03-01 Hussmann Corporation Présentoir distributeur réfrigéré avec un déchargement aérien dans la partie arrière de l'étagère frigorifique actionné par un ventilateur
US7062932B2 (en) 2004-08-24 2006-06-20 Hussmann Corporation Refrigerated merchandiser with fan-powered rear discharge
RU2650401C2 (ru) * 2013-05-10 2018-04-11 Эплайд Дизайн Энд Инжиниринг Лтд Приспособления для охлаждаемых витрин
US10314411B2 (en) 2016-05-25 2019-06-11 Hussmann Corporation Refrigerated merchandiser with airflow support system
KR102563935B1 (ko) * 2023-06-16 2023-08-07 주식회사 밤일마을제주흑돈 냉장 보관용 쇼케이스

Also Published As

Publication number Publication date
SE505561C2 (sv) 1997-09-15
EP0600845A3 (en) 1997-05-21
SE9203595L (sv) 1994-05-31
SE9203595D0 (sv) 1992-11-30

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