EP0031311A2 - Arrangement for keeping a freezer frost-free - Google Patents

Arrangement for keeping a freezer frost-free Download PDF

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Publication number
EP0031311A2
EP0031311A2 EP80850170A EP80850170A EP0031311A2 EP 0031311 A2 EP0031311 A2 EP 0031311A2 EP 80850170 A EP80850170 A EP 80850170A EP 80850170 A EP80850170 A EP 80850170A EP 0031311 A2 EP0031311 A2 EP 0031311A2
Authority
EP
European Patent Office
Prior art keywords
arrangement according
filter
cabinet
chamber
shelf
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Withdrawn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
EP80850170A
Other languages
German (de)
French (fr)
Other versions
EP0031311A3 (en
Inventor
Karl Folke Andersson
Bolik Anders Gottfrid Eriksson
Lennart Wilhlem Castwall
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 EP0031311A2 publication Critical patent/EP0031311A2/en
Publication of EP0031311A3 publication Critical patent/EP0031311A3/en
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • 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
    • F25D21/04—Preventing the formation of frost or condensate
    • 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
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
    • 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
    • F25D2317/04—Treating air flowing to refrigeration compartments
    • F25D2317/041—Treating air flowing to refrigeration compartments by purification
    • F25D2317/0411—Treating air flowing to refrigeration compartments by purification by dehumidification
    • 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
    • F25D2317/067—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 air ducts
    • 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
    • F25D2317/068—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 fans
    • F25D2317/0683—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 fans the fans not of the axial type
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/02—Sensors detecting door opening

Definitions

  • the object of the present invention is to remove these drawbacks and provide a freezer cabinet which operates without frost. Further, the heat insulated volume of the cabinet should to largest possible extent be used for storing of food and no expensive extra equipment beside the refrigerating apparatus should be required. Last but not least, the cabinet should be energy saving. This is achieved by the arrangement according to the invention as defined in the claims.
  • Fig. 1 is a perspective view of the freezer cabinet seen from the front with open door
  • Fig. 2 is a horizontal section through the cabinet along the line II-II of Fig. 1
  • Fig. 3 is a vertical section through the uppermost shelf in the cabinet along the line III-III of Fig. 2
  • Fig. 4 is a similar vertical section through the shelf along the line IV-IV of Fig. 2.
  • the freezer cabinet shown in Fig, 1 is operated by a compressor- driven refrigerating apparatus which may be of a type known per se and therefore is not shown in the Figure.
  • the compressor is situated below the stepped bottom 10 of the cabinet and has cooling coils in the shelves 11, 12, 13, 14 of the cabinet.
  • the top 16 is formed by a cooling coil,
  • the cabinet stands on a base 17 with vent openings 18 for cooling air to the refrigerating apparatus.
  • the cabinet has a heat-insulated door 19 with a handle 20,
  • a shelf 21 of particular design is arranged in the freezing chamber. It can be mounted on the heat-insulated side walls 22, 23 of the chamber in a manner known per se, but it has to give a free space on the sides and against the rear wall so that air from the uppermost space 15 can freely flow past the shelf 21 down to a lower space 24. Therefore the shelf 21 of Fig, 2 is shown schematically with gaps 25 between the shelf and the side walls 22, 23.
  • the shelf 21 has a whole upper surface of heat-conductive material, for instance aluminium sheet, which forms a plane 26 for goods and prevents spilled liquid from entering into the shelf,
  • the sheet is folded on the sides 27, 28 and suitably also on the rear side, whereas the Arrangement for keeping a freezer frost-free
  • the present invention relates to an arrangement in a freezer cabinet for storing of food in a freezing chamber with cooled surfaces for keeping these surfaces frost-free.
  • the freezer cabinets in use in household for extended storing of food are mainly of two types.
  • One type is the so-called frost-free freezer cabinet, i.e. a cabinet having a chamber for goods and a vertical channel or a space, usually at the rear side of the chamber, containing a cooling element, a heating element and a fan.
  • frost-free freezer cabinet i.e. a cabinet having a chamber for goods and a vertical channel or a space, usually at the rear side of the chamber, containing a cooling element, a heating element and a fan.
  • the cooling element and the fan are active, and gradually frost is formed on the cooling element.
  • the fan and the cooling element are disconnected and a heating element is connected.
  • One receives melt-water which is conducted away.
  • the heating element thereafter is disconnected and the cooling element and the fan are started.
  • the chamber has cooled surfaces. Then, during operation relatively large quantities of frost are formed on the coldest surfaces and also to some extent on the goods in the chamber. Defrosting is made manually at long intervals, the refrigerating apparatus of the freezer being disconnected and the goods removed from the chamber and stored at some other place while the frost in the cabinet is caused to melt.
  • the water formed can be collected in different ways but this always causes inconveniences.
  • the frost-free cabinet has less frost in the chamber, and it is easier to remove the melt-water than in the other cabinet, but the channel or the space surrounding the cooling element requires a considerable extra space in the cabinet. Further, heating elements with adequate power have to be mounted for the defrosting which entails on one hand. a cost for installation and on the other hand that the heat supplied after defrosting has to be transported away by the refrigerating apparatus. This results in a large total energy consumption for the operation.
  • front side is open, At the underside of the box thus formed, which is open downwardly, two guides 29, 30 are arranged. On these a moisture-absorbing means in the form of a filter 31, for instance containing silica-gel, is insertible.
  • the filter has the shape of a thin flat plate with largest possible extension, and it fits into an opening in the front of the shelf 21.
  • the filter 31 is situated with its upper side at a distance below the plane 26 for goods, and a space 32, which is formed between the filter 31 and the plane 26 for goods, extends to the right as far as to the side wall 28 of the shelf 21, at least in the rear part of the shelf as shown in Fig. 4.
  • a box 33 is located, which contains control means, known per se, for the freezer.
  • This box can i.a. at the front side, which forms part of the front of the shelf 21, have a thermostat knob 34, control lamps 35 and door switch 36.
  • a circle in the bottom of the space 32 at the right-hand side is seen which indicates an air intake 37 to a fan with a motor 39 (Fig. 4J. From the fan 38 an air conduit 40 goes below the space 32 in the direction of the front of the shelf.
  • a vertical air distribution channel 41 having an inlet 42 is so designed that the inlet 42 will be situated in front of the conduit 40 when the door is closed.
  • the air from the fan 38 is thus forced into the distribution channel 41, and the latter has outlet openings 43, 44, 45, 46 to spaces 47, 48, 49, 50 in the freezing chamber.
  • an outlet opening 51 is arranged,
  • frost may be formed at the coldest surfaces in the chamber.
  • frost it is insignificant and is not followed by a continuous build-up of more frost, but on the contrary the continuing but faint air circulation in the cabinet is sufficient in a short while to remove all frost and to transport the moisture forming the frost to the filter.
  • the frost in a certain point is sublimed on the spot to water vapour which by the air is transported to the filter where it is collected.
  • the procedure described is so effective that it is not necessary to have the fan operate continually. It may be suitable to control the procedure so that defrosting proceeds during operation or during non-operation of the compressor. It is also possible to control the fan motor over a hygrostat, which reacts and starts the fan motor when the relative humidity of the air in a given point of the cabinet exceeds a given limit.
  • the filter can be regenerated by heating to l80 0 C under ventilation.
  • the invention has been described above in connection with a freezer cabinet having cooled shelves. However, it can to equal advantage be applied to a freezer cabinet having cooling coils at the outside of the inner lining of the walls,

Abstract

In a freezer cabinet with cooled surfaces in a freezing chamber for storing of food frost appears on the surfaces and on the food. On defrosting the chamber has to be emptied of food and be heated so that the frost melts. Water is formed which has to be collected. The invention relates to a freezer cabinet operating without frost. An arrangement according to the invention is characterized by a circulation path (32,40) for air including a moisture-absorbing means and a motor-driven fan (38).

Description

  • Both types of cabinet thus have considerable drawbacks.
  • The object of the present invention is to remove these drawbacks and provide a freezer cabinet which operates without frost. Further, the heat insulated volume of the cabinet should to largest possible extent be used for storing of food and no expensive extra equipment beside the refrigerating apparatus should be required. Last but not least, the cabinet should be energy saving. This is achieved by the arrangement according to the invention as defined in the claims.
  • The invention will be described more in detail in the following with reference to a freezer cabinet with storage surfaces consisting of cooled shelves and shown schematically by way of example in the drawings. Fig. 1 is a perspective view of the freezer cabinet seen from the front with open door, Fig. 2 is a horizontal section through the cabinet along the line II-II of Fig. 1, Fig. 3 is a vertical section through the uppermost shelf in the cabinet along the line III-III of Fig. 2, and Fig. 4 is a similar vertical section through the shelf along the line IV-IV of Fig. 2.
  • The freezer cabinet shown in Fig, 1 is operated by a compressor- driven refrigerating apparatus which may be of a type known per se and therefore is not shown in the Figure. The compressor is situated below the stepped bottom 10 of the cabinet and has cooling coils in the shelves 11, 12, 13, 14 of the cabinet. In the uppermost space 15 of the freezer chamber the top 16 is formed by a cooling coil,
  • The cabinet stands on a base 17 with vent openings 18 for cooling air to the refrigerating apparatus. The cabinet has a heat-insulated door 19 with a handle 20,
  • According to the invention a shelf 21 of particular design is arranged in the freezing chamber. It can be mounted on the heat-insulated side walls 22, 23 of the chamber in a manner known per se, but it has to give a free space on the sides and against the rear wall so that air from the uppermost space 15 can freely flow past the shelf 21 down to a lower space 24. Therefore the shelf 21 of Fig, 2 is shown schematically with gaps 25 between the shelf and the side walls 22, 23.
  • The shelf 21 has a whole upper surface of heat-conductive material, for instance aluminium sheet, which forms a plane 26 for goods and prevents spilled liquid from entering into the shelf, The sheet is folded on the sides 27, 28 and suitably also on the rear side, whereas the Arrangement for keeping a freezer frost-free
  • The present invention relates to an arrangement in a freezer cabinet for storing of food in a freezing chamber with cooled surfaces for keeping these surfaces frost-free.
  • The freezer cabinets in use in household for extended storing of food are mainly of two types. One type is the so-called frost-free freezer cabinet, i.e. a cabinet having a chamber for goods and a vertical channel or a space, usually at the rear side of the chamber, containing a cooling element, a heating element and a fan. During operation the cooling element and the fan are active, and gradually frost is formed on the cooling element. Then the fan and the cooling element are disconnected and a heating element is connected. One receives melt-water which is conducted away. The heating element thereafter is disconnected and the cooling element and the fan are started.
  • In the other type of freezer cabinet, the chamber has cooled surfaces. Then, during operation relatively large quantities of frost are formed on the coldest surfaces and also to some extent on the goods in the chamber. Defrosting is made manually at long intervals, the refrigerating apparatus of the freezer being disconnected and the goods removed from the chamber and stored at some other place while the frost in the cabinet is caused to melt. The water formed can be collected in different ways but this always causes inconveniences.
  • The frost-free cabinet has less frost in the chamber, and it is easier to remove the melt-water than in the other cabinet, but the channel or the space surrounding the cooling element requires a considerable extra space in the cabinet. Further, heating elements with adequate power have to be mounted for the defrosting which entails on one hand. a cost for installation and on the other hand that the heat supplied after defrosting has to be transported away by the refrigerating apparatus. This results in a large total energy consumption for the operation. front side is open, At the underside of the box thus formed, which is open downwardly, two guides 29, 30 are arranged. On these a moisture-absorbing means in the form of a filter 31, for instance containing silica-gel, is insertible. The filter has the shape of a thin flat plate with largest possible extension, and it fits into an opening in the front of the shelf 21. The filter 31 is situated with its upper side at a distance below the plane 26 for goods, and a space 32, which is formed between the filter 31 and the plane 26 for goods, extends to the right as far as to the side wall 28 of the shelf 21, at least in the rear part of the shelf as shown in Fig. 4. In the front part, as shown in Fig. 3, a box 33 is located, which contains control means, known per se, for the freezer. This box can i.a. at the front side, which forms part of the front of the shelf 21, have a thermostat knob 34, control lamps 35 and door switch 36.
  • In Fig. 2, in which the rear right-hand corner of the plane 26 for goods is cut away, a circle in the bottom of the space 32 at the right-hand side is seen which indicates an air intake 37 to a fan with a motor 39 (Fig. 4J. From the fan 38 an air conduit 40 goes below the space 32 in the direction of the front of the shelf.
  • In the door 19 of the freezer cabinet a vertical air distribution channel 41 having an inlet 42 is so designed that the inlet 42 will be situated in front of the conduit 40 when the door is closed. The air from the fan 38 is thus forced into the distribution channel 41, and the latter has outlet openings 43, 44, 45, 46 to spaces 47, 48, 49, 50 in the freezing chamber. To the uppermost space 15 an outlet opening 51 is arranged,
  • It is possible by means of a fan motor 39 of extremely small power to force the air in the freezing chamber to pass from below the filter 31, where moisture contents of the cold air are almost completely given off, and thereafter back to all spaces in the freezing chamber. Hereby the air is caused to flow over all cold surfaces in the chamber and over all goods which are in direct contact with the air and therefore are subject to formation of frost. The air forced by the fan into the spaces in the freezing chamber has due to the removal of moisture in the filter a lower relative humidity than that at which water is precipitated at the temperatures prevailing on the surface of the goods and on the cooled surfaces in the chamber. Therefore, as a rule no frost at all is formed in the chamber in the normal case, i.e. when the door is closed. In use of a freezer cabinet, however, the door is opened from time to time in order to place goods in the chamber or to remove goods therefrom, and then the freezing chamber air is more or less exchanged for air of room temperature and a moisture content corresponding thereto. Then occasionally frost may be formed at the coldest surfaces in the chamber. However, it is insignificant and is not followed by a continuous build-up of more frost, but on the contrary the continuing but faint air circulation in the cabinet is sufficient in a short while to remove all frost and to transport the moisture forming the frost to the filter. The frost in a certain point is sublimed on the spot to water vapour which by the air is transported to the filter where it is collected.
  • The procedure described is so effective that it is not necessary to have the fan operate continually. It may be suitable to control the procedure so that defrosting proceeds during operation or during non-operation of the compressor. It is also possible to control the fan motor over a hygrostat, which reacts and starts the fan motor when the relative humidity of the air in a given point of the cabinet exceeds a given limit.
  • The filter can be regenerated by heating to l80 0C under ventilation.
  • The invention has been described above in connection with a freezer cabinet having cooled shelves. However, it can to equal advantage be applied to a freezer cabinet having cooling coils at the outside of the inner lining of the walls,

Claims (10)

1. Arrangement in a freezer cabinet for storing of food in a freezing chamber with cooled surfaces for keeping these surfaces frost-free, characterized by a circulation path (32,40) for air arranged in the cabinet and comprising a moisture-absorbing means and a fan (38).
2. Arrangement according to Claim 1, characterized in that the means is formed by an exchangeable filter (31) containing a substance having moisture-absorbing properties.
3. Arrangement according to Claim 2, characterized in that the filter (31) contains regenerative substance, for instance silica-gel.
4. Arrangement according to Claim 2, characterized in that the filter (31) is arranged in a shelf (21) for goods in the chamber.
5. Arrangement according to Claim 4, characterized in that the shelf (21) comprises a plane (26) for goods, that the plane is in the shape of an upper whole sheet of heat-conductive material, that it has a downwardly open space for a filter (31) insertible from the front, that a part (32) of the air path goes inside the shelf (21) from the rear side of the filter to the fan (38) and another part (40) from the fan (38).
6. Arrangement according to Claim 5, characterized in that the first part (32) of the air path in the shelf (21) from the filter (31) to the fan (38) is arranged in contact with mainly the whole plane (26) for goods.
7. Arrangement according to Claim 5, characterized in that the refrigerating apparatus of the freezer is thermostatically controlled and has a sensor for the termostat sensing the temperature of the plane (26) for goods,
8. Arrangement according to any of Claims 4-7, characterized in that the second part (40) of the air path is arranged to conduct the air into a distribution channel (41).
9. Arrangement according to Claim 8, characterized in that the channel (41) goes between the upper part and the bottom of the chamber and that it has inlet openings (43-46, 51) to separate spaces (15,24, 47-50) in the chamber.
10. Arrangement according to Claim 9, characterized in that the channel (41) is arranged in the door (19) of the cabinet.
EP80850170A 1979-11-29 1980-11-12 Arrangement for keeping a freezer frost-free Withdrawn EP0031311A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7909844 1979-11-29
SE7909844A SE7909844L (en) 1979-11-29 1979-11-29 SET AND DEVICE FOR KEEPING A FROZEN FREEZE

Publications (2)

Publication Number Publication Date
EP0031311A2 true EP0031311A2 (en) 1981-07-01
EP0031311A3 EP0031311A3 (en) 1982-06-23

Family

ID=20339428

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80850170A Withdrawn EP0031311A3 (en) 1979-11-29 1980-11-12 Arrangement for keeping a freezer frost-free

Country Status (6)

Country Link
EP (1) EP0031311A3 (en)
JP (1) JPS5691167A (en)
CA (1) CA1142765A (en)
DK (1) DK504980A (en)
FI (1) FI803657L (en)
SE (1) SE7909844L (en)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983001293A1 (en) * 1981-09-29 1983-04-14 Andersson, Karl, Folke Method and arrangement for maintaining a frost-free freezer
GB2165341A (en) * 1984-08-29 1986-04-09 Christopher Denham Wall Refrigerators
FR2655717A1 (en) * 1989-12-12 1991-06-14 Selnor Electromenager Nord Refrigerator appliance with several temperatures
EP0652410A1 (en) * 1993-11-06 1995-05-10 GOLDSTAR CO. Ltd. A multifunction refrigerator
FR2757935A1 (en) * 1996-12-30 1998-07-03 Drean Henri Louis Marie Refrigerator, with gas absorption and compartmented storage case
EP0879999A2 (en) * 1997-05-20 1998-11-25 Lg Electronics Inc. Anti-frost device for refrigerator
JPH11132624A (en) * 1997-08-29 1999-05-21 Lg Electron Inc Concentrative cool air supplying device for refrigerator
GB2379004A (en) * 2001-08-21 2003-02-26 Lg Electronics Inc Cooling air supply for a refrigerator
WO2005028974A1 (en) * 2003-09-19 2005-03-31 University Of Florida System for trapping airborne water in cooling and freezing devices
WO2006072901A1 (en) * 2005-01-03 2006-07-13 Arcelik Anonim Sirketi A cooling device
EP1845321A1 (en) * 2006-01-30 2007-10-17 Whirlpool Corporation Refrigerator with moisture adsorbing device
WO2007127961A2 (en) 2006-04-27 2007-11-08 Multisorb Technologies, Inc. Freezer frost abatement device
EP1953481A2 (en) 2007-02-01 2008-08-06 Indesit Company S.p.A. Domestic refrigerator apparatus, with air circulation and treatment device
DE202008000765U1 (en) * 2007-12-28 2009-04-30 Liebherr-Hausgeräte Ochsenhausen GmbH Fridge and / or freezer
WO2010061340A3 (en) * 2008-11-28 2012-04-05 Bsh博世和西门子家用器具有限公司 Refrigerator
EP2846116A1 (en) * 2013-09-09 2015-03-11 Whirlpool Corporation Refrigerator
US9022364B2 (en) 2013-05-30 2015-05-05 The Boeing Company Evaporative system for removing water from an aircraft lavatory and or galley floor
WO2016107784A1 (en) * 2014-12-31 2016-07-07 BSH Hausgeräte GmbH A cooling device having an air channel and a baffle
EP2920530A4 (en) * 2012-11-19 2016-09-28 Kylmäveräjä Oy Refrigeration method and refrigeration equipment
CN107514855A (en) * 2017-07-14 2017-12-26 青岛海尔电冰箱有限公司 Refrigerating device
WO2020108916A1 (en) * 2018-11-26 2020-06-04 Arcelik Anonim Sirketi A cooling device wherein the frost formation in the freezing compartment is prevented
WO2024028164A1 (en) * 2022-08-04 2024-02-08 Miele & Cie. Kg Storage cabinet comprising a device for treating the interior air

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WO1983001293A1 (en) * 1981-09-29 1983-04-14 Andersson, Karl, Folke Method and arrangement for maintaining a frost-free freezer
GB2165341A (en) * 1984-08-29 1986-04-09 Christopher Denham Wall Refrigerators
FR2655717A1 (en) * 1989-12-12 1991-06-14 Selnor Electromenager Nord Refrigerator appliance with several temperatures
EP0652410A1 (en) * 1993-11-06 1995-05-10 GOLDSTAR CO. Ltd. A multifunction refrigerator
FR2757935A1 (en) * 1996-12-30 1998-07-03 Drean Henri Louis Marie Refrigerator, with gas absorption and compartmented storage case
EP0879999A3 (en) * 1997-05-20 1999-04-21 Lg Electronics Inc. Anti-frost device for refrigerator
EP0879999A2 (en) * 1997-05-20 1998-11-25 Lg Electronics Inc. Anti-frost device for refrigerator
JPH11132624A (en) * 1997-08-29 1999-05-21 Lg Electron Inc Concentrative cool air supplying device for refrigerator
GB2379004A (en) * 2001-08-21 2003-02-26 Lg Electronics Inc Cooling air supply for a refrigerator
GB2379004B (en) * 2001-08-21 2006-04-12 Lg Electronics Inc Cooling air supply device in refrigerator
WO2005028974A1 (en) * 2003-09-19 2005-03-31 University Of Florida System for trapping airborne water in cooling and freezing devices
US6925819B2 (en) 2003-09-19 2005-08-09 University Of Florida Research Foundation, Inc. System for trapping airborne water in cooling and freezing devices
WO2006072901A1 (en) * 2005-01-03 2006-07-13 Arcelik Anonim Sirketi A cooling device
US7797963B2 (en) 2006-01-30 2010-09-21 Whirlpool Corporation Refrigerator with moisture adsorbing device
EP1845321A1 (en) * 2006-01-30 2007-10-17 Whirlpool Corporation Refrigerator with moisture adsorbing device
WO2007127961A2 (en) 2006-04-27 2007-11-08 Multisorb Technologies, Inc. Freezer frost abatement device
EP2013555A2 (en) * 2006-04-27 2009-01-14 Multisorb Technologies, Inc. Freezer frost abatement device
EP2013555A4 (en) * 2006-04-27 2013-10-16 Multisorb Tech Inc Freezer frost abatement device
EP1953481A3 (en) * 2007-02-01 2008-12-03 Indesit Company S.p.A. Domestic refrigerator apparatus, with air circulation and treatment device
EP1953481A2 (en) 2007-02-01 2008-08-06 Indesit Company S.p.A. Domestic refrigerator apparatus, with air circulation and treatment device
DE202008000765U1 (en) * 2007-12-28 2009-04-30 Liebherr-Hausgeräte Ochsenhausen GmbH Fridge and / or freezer
WO2010061340A3 (en) * 2008-11-28 2012-04-05 Bsh博世和西门子家用器具有限公司 Refrigerator
EP2920530A4 (en) * 2012-11-19 2016-09-28 Kylmäveräjä Oy Refrigeration method and refrigeration equipment
US9022364B2 (en) 2013-05-30 2015-05-05 The Boeing Company Evaporative system for removing water from an aircraft lavatory and or galley floor
EP2846116A1 (en) * 2013-09-09 2015-03-11 Whirlpool Corporation Refrigerator
WO2016107784A1 (en) * 2014-12-31 2016-07-07 BSH Hausgeräte GmbH A cooling device having an air channel and a baffle
US10890370B2 (en) 2014-12-31 2021-01-12 Bsh Hausgeraete Gmbh Cooling device having an air channel and a baffle
CN107514855A (en) * 2017-07-14 2017-12-26 青岛海尔电冰箱有限公司 Refrigerating device
WO2020108916A1 (en) * 2018-11-26 2020-06-04 Arcelik Anonim Sirketi A cooling device wherein the frost formation in the freezing compartment is prevented
WO2024028164A1 (en) * 2022-08-04 2024-02-08 Miele & Cie. Kg Storage cabinet comprising a device for treating the interior air

Also Published As

Publication number Publication date
FI803657L (en) 1981-05-30
DK504980A (en) 1981-05-30
CA1142765A (en) 1983-03-15
SE7909844L (en) 1981-05-30
EP0031311A3 (en) 1982-06-23
JPS5691167A (en) 1981-07-23

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