EP1688688B1 - Congélateur bahut sans givre - Google Patents

Congélateur bahut sans givre Download PDF

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Publication number
EP1688688B1
EP1688688B1 EP06100188.9A EP06100188A EP1688688B1 EP 1688688 B1 EP1688688 B1 EP 1688688B1 EP 06100188 A EP06100188 A EP 06100188A EP 1688688 B1 EP1688688 B1 EP 1688688B1
Authority
EP
European Patent Office
Prior art keywords
cabinet
evaporator
air
frost
towards
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.)
Active
Application number
EP06100188.9A
Other languages
German (de)
English (en)
Other versions
EP1688688A1 (fr
Inventor
Jutta Ziermaier
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 Corp
Original Assignee
Whirlpool Corp
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 Corp filed Critical Whirlpool Corp
Publication of EP1688688A1 publication Critical patent/EP1688688A1/fr
Application granted granted Critical
Publication of EP1688688B1 publication Critical patent/EP1688688B1/fr
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
    • F25D17/042—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
    • 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
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • 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
    • F25D2317/062—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 along the inside of doors
    • 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
    • F25D2317/066—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 supply
    • F25D2317/0665—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 supply from the top
    • 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
    • F25D2400/10—Refrigerator top-coolers

Definitions

  • the present invention relates to a chest freezer of the type comprising a cabinet, an evaporator and ventilation means capable of causing a stream of air to circulate through said evaporator and said cabinet.
  • any frost or ice that builds up on the evaporator can be defrosted periodically without any intervention on the part of the user.
  • a no-frost chest freezer according to the preamble of claim 1 is known from WO2005/003658 .
  • US-A-2200502 discloses a refrigerated cabinet with bottle holders made of foraminous material, such as wire netting.
  • the aim of the present invention is to provide a chest freezer of the above-stated type that resolves the problem of effectively circulating the air in a simple and economic manner.
  • said aim is achieved owing to the fact that the freezer comprises a tank-like auxiliary element equipped with a plurality of openings and capable of being introduced into the cabinet in order to form therewith a gap for air circulation.
  • the air from the cabinet is conveyed through said openings towards the gap and conveyed therefrom upstream of the evaporator.
  • excellent air flow and a substantially uniform temperature are obtained within the cabinet.
  • a further advantage of freezer according to the invention is the possibility of converting a static chest freezer simply and quickly into a no-frost-type chest freezer by simply introducing into the cabinet the tank-like auxiliary element together with the evaporator, damper and fan assembly.
  • 10 denotes overall a no-frost chest freezer having a cavity 12 and a horizontal door 14.
  • the cavity 12 is defined by a wall or "liner" insulated from the surrounding environment by means of an insulating material K.
  • a compartment 12a which is arranged for example at the level of a step beneath which is accommodated a compressor C, and is separated from the remainder of the cavity by an insulated wall 16. This latter wall has at the bottom an opening 16a for the return air to pass through.
  • the compartment 12a contains an evaporator E provided at the top with a fan 18 for air circulation.
  • the fan 18 is configured such that flow is directed towards an opening 20 located in the door 14 and connected to internal ducts 22 in the door that open into corresponding vents 24.
  • a valve or "damper" 26 capable of preventing the flow of air (even with the fan 18 stationary, and thus simply by convection) in a condition for defrosting the evaporator E.
  • the damper 26 is associated with a sealing gasket, for example made of silicone rubber (not shown), capable of completely sealing any leaks of air from the compartment 12a. It is important for the vents 24 of the door 14 to be narrower in the vicinity of the evaporator E and for them to become gradually wider towards the opposite side. This is to ensure that cold air is also conveyed to the part of the freezer opposite that where the evaporator E is arranged and that the circulation of cold air is not restricted to the ducts closest to the evaporator.
  • a tank-like element 28 is introduced into the cavity 12, said element being of slightly smaller dimensions than the "liner" of said cavity and being equipped with a plurality of openings 28a for the air to pass through.
  • the element 28 or the liner of the cavity 12 is provided with spacers (not shown) capable of ensuring a predetermined distance between the element 28 and the cavity 12 in such a manner as to define a gap W for circulation of the return air.
  • Said circulation shown by arrows in the drawings, ensures that the fan 18 directs cold air towards the ducts 22 of the door and thence, through the vents 24, directly into the cabinet where the products to be preserved are stacked. From the cabinet, the air passes through the openings 28a of the tank-like element 28 into the gap W whence it is drawn through the opening 16a in the insulated wall 16 towards the evaporator E.
  • a plurality of baskets 30 for food products there are preferably arranged a plurality of baskets 30 for food products, said baskets also being capable of acting as spacers for better directing the streams of air towards the openings 28a.

Claims (3)

  1. Congélateur coffre sans givre, du type comprenant une caisse, un évaporateur, un moyen de ventilation susceptible de provoquer un flot d'air pour circuler à travers ledit évaporateur et ladite caisse,
    comprenant un élément auxiliaire (28) équipé d'une pluralité d'ouvertures (28a) susceptible d'être introduit dans la caisse (12) afin de former, avec la caisse (12), un espacement (W) pour la circulation de l'air,
    le moyen de ventilation (18) dirigeant l'air froid dans la caisse (12), depuis la caisse l'air passant à travers les ouvertures (28a) vers l'espacement (W) où il est attiré vers l'évaporateur (E),
    dans lequel ledit évaporateur (E) est situé dans une zone du cabinet (12a) qui est séparée du reste de la caisse (12) au moyen d'une paroi thermiquement isolée (16), au moins une ouverture (16a) étant prévue dans ladite paroi (16) pour que l'air passe à travers, et
    dans lequel ledit congélateur comprend une porte (14) munie de conduits internes (22) pour transporter le flot d'air en aval depuis l'évaporateur (E) vers une zone supérieure du cabinet (12), l'air étant renvoyé vers l'évaporateur (E) dans ledit espacement (W),
    caractérisé en ce que
    l'élément auxiliaire (28) est un élément auxiliaire semblable à un réservoir (28) et le congélateur comprend un moyen formant vanne (26) susceptible d'empêcher la circulation d'air pendant le dégivrage de l'évaporateur (E).
  2. Congélateur coffre sans givre selon la revendication 1,
    caractérisé en ce que le moyen formant vanne précédemment mentionné (26) est associé auxdits conduits (20, 22) de la porte (14).
  3. Congélateur coffre sans givre selon la revendication 1,
    dans lequel lesdits conduits internes (22) s'ouvrent dans des évents correspondants (24), les évents (24) étant plus étroits au voisinage de l'évaporateur (E) et devenant progressivement plus larges vers le côté opposé.
EP06100188.9A 2005-02-03 2006-01-10 Congélateur bahut sans givre Active EP1688688B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000002U ITVA20050002U1 (it) 2005-02-03 2005-02-03 Congelatore orizzontale di tipo "no-frost"

Publications (2)

Publication Number Publication Date
EP1688688A1 EP1688688A1 (fr) 2006-08-09
EP1688688B1 true EP1688688B1 (fr) 2017-11-15

Family

ID=36218247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06100188.9A Active EP1688688B1 (fr) 2005-02-03 2006-01-10 Congélateur bahut sans givre

Country Status (2)

Country Link
EP (1) EP1688688B1 (fr)
IT (1) ITVA20050002U1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK2545333T3 (da) 2010-03-10 2021-08-30 Orrell Ltd Dybfryser
EP2936019A1 (fr) * 2012-12-19 2015-10-28 Arçelik Anonim Sirketi Congélateur-coffre comprenant des conduits de circulation d'air
CN106642906A (zh) * 2017-02-17 2017-05-10 合肥美菱股份有限公司 一种卧式无霜冷柜
CN109140863B (zh) * 2018-07-09 2022-11-25 青岛海尔特种电冰柜有限公司 卧式风冷冷柜
CN109114856B (zh) * 2018-07-09 2022-12-30 青岛海尔特种电冰柜有限公司 卧式风冷冷柜
DE102019109132A1 (de) * 2019-04-08 2020-10-08 Dörsam Fahrzeug- und Klimatechnik GmbH Mobile Kühleinrichtung
CN112963995A (zh) * 2021-02-22 2021-06-15 弗兰卡餐饮设备安装技术服务（中国）有限公司 冻肉机

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1172281A (ja) * 1997-08-29 1999-03-16 Sanyo Electric Co Ltd 低温庫

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2200502A (en) * 1938-12-24 1940-05-14 Auburn Automobile Company Refrigerator
US2543494A (en) * 1944-12-22 1951-02-27 Rush S Hartman Refrigerating device
DE1932142B1 (de) * 1969-06-25 1971-06-03 Manfred Hueber Anlage zum Temperieren,Transportieren und Ausgeben von Lebensmitteln
WO2005003658A2 (fr) * 2003-07-04 2005-01-13 Electrolux Home Products Corporation N.V. Systeme pour la refrigeration d'un compartiment
US7451603B2 (en) * 2004-03-22 2008-11-18 General Mills, Inc. Portable cooled merchandizing unit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1172281A (ja) * 1997-08-29 1999-03-16 Sanyo Electric Co Ltd 低温庫

Also Published As

Publication number Publication date
EP1688688A1 (fr) 2006-08-09
ITVA20050002U1 (it) 2006-08-04

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