EP1124101B1 - Refrigerator appliance with refrigeration grid provided with eutectic plates - Google Patents
Refrigerator appliance with refrigeration grid provided with eutectic plates Download PDFInfo
- Publication number
- EP1124101B1 EP1124101B1 EP01200404A EP01200404A EP1124101B1 EP 1124101 B1 EP1124101 B1 EP 1124101B1 EP 01200404 A EP01200404 A EP 01200404A EP 01200404 A EP01200404 A EP 01200404A EP 1124101 B1 EP1124101 B1 EP 1124101B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- refrigerator appliance
- eutectic
- shelves
- eutectic plates
- appliance according
- 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
Links
- 230000005496 eutectics Effects 0.000 title claims description 34
- 238000005057 refrigeration Methods 0.000 title claims description 11
- 238000001816 cooling Methods 0.000 claims description 13
- 239000003086 colorant Substances 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 description 6
- 235000013305 food Nutrition 0.000 description 4
- 238000007710 freezing Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 239000000374 eutectic mixture Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/006—Self-contained movable devices, e.g. domestic refrigerators with cold storage accumulators
-
- 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
- F25D16/00—Devices using a combination of a cooling mode associated with refrigerating machinery with a cooling mode not associated with refrigerating machinery
-
- 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
- F25D25/028—Cooled supporting means
-
- 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 appliance with refrigeration grid provided with eutectic plates, in particular to a freezer. Even more in particular the present invention refers to a household freezer.
- EP-A-1 006 324 and WO 01 27551 A show a refrigerator shelf made up of a cooking serpentine and tool elements which form a grid structure with passages into which a container of eutectic mixture is inserted.
- scope of the present invention is to realise a refrigerator appliance that allows to obtain an energy consumption lower than the known freezers.
- a vertical freezer comprising a cabinet 1 and a refrigeration grid 2 according to the present invention.
- the refrigeration grid 2 is arranged along the entire width and the length of the cabinet 1 so as to define horizontal shelves 3 that are arranged at a certain distance the ones from the others and made up of a cooling coil 4.
- Such shelves 3 are transversally connected the ones with the others by means of rods 5 and 6 that are transversally welded below and above the cooling coil 4 and that are fastened to the side walls of the freezer by means of supports 7.
- the cooling coil 4 of the shelves 3 forms external folds 8 with a small length of coil and folds 9 with a greater length of coil so as to create appropriate housings 20 that are suitable to receive eutectic plates 10 of a first type that are arranged horizontally, as shown in Figures 3a, 3b.
- Such eutectic plates 10 are removably fastened to the cooling coil 4 of every shelf and precisely they are connected with the folds 9 so as to occupy a space almost equal to one time and a half the housing 20.
- the plates 10 are coupled to the coil 4 in order to have considerable contact points both with the same coil 4 as well as with the rods 5 and 6 that are welded to the coil 4 so as to facilitate the thermal exchange.
- Such eutectic plates 10 have a small thickness but wide lateral surfaces, they are made up of a container generally made of plastic material and they contain an amount of eutectic solution of approximately 0.6 litres.
- shelves 3 are also present that are provided with eutectic plates 11 of a second type that are smaller than the eutectic plates 10 and inserted horizontally each one in every housing 20 of the folds 9 of the coil 4 in an extractable way, as shown more in detail in Figures 4a, 4b.
- eutectic plates 11 are coupled to the coil 4 too, in order to have considerable points of contact with it and with the rods 5 and 6 that are welded to the coil 4 and they have a smaller extension of the lateral surfaces.
- Such plates 11 are made up of a container that is generally made of a plastic material and they contain an amount of eutectic solution of approximately 0.14 litres.
- the refrigeration grid 2 that is part of a refrigerating circuit (not visible in the figures) comprising an opportune compressor and a condenser, allows to have shelves, each having equal temperature, at various temperatures, and precisely at increasing temperature from the top towards the bottom in cabinet the 1 of the freezer. Therefore it is possible to have shelves 12 to deep freeze food with temperature at -30°C, shelves 200 for quick freezing with temperature at -26°C, medium freezing shelves 13 with temperature at -22°C, storage shelves 14 with temperature at - 18°C.
- At least one shelf 15 at differentiated and sectorial eutectic temperature on a same shelf 3 by using eutectic plates 10, 11 at a different temperature on the same shelf 15.
- the shelves provided with eutectic plate 10, 11 are arranged vertically at a given distance the ones from the others so as to define respective containers 40-45 for the cooling of foods inside the cabinet 1.
- Such containers 40-45 are closed by respective doors 50-55 while the entire cabinet 1 is closed by a door 60.
- the eutectic plates 10 and 11 allow a homogenisation of the temperature in the different shelves, that, especially when the compressor is cyclically in pause, allow an increase in times of temperature raise, thus diminishing the energy consumption.
- the eutectic plates 10 and 11 have various colours according to the type of eutectic solution contained and they can have the temperature directly stamped on the container.
- the cooling coil 4 defines housings 20 for eutectic plates 10, 11 with a constant pitch.
- each one of the shelves 3 comprises the same number of housings 20 for eutectic plates 10, 11.
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)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
- The present invention refers to a refrigerator appliance with refrigeration grid provided with eutectic plates, in particular to a freezer. Even more in particular the present invention refers to a household freezer.
- Generally there are known household freezers, especially vertical type ones, with compartments for the freezing or the preservation of food in which the temperature can vary from approximately -30°C to -18°C. The maintaining of low temperatures in such types of freezer takes place by means of cycles in which there is an almost continuous activation of the compressor of the same freezer and few moments of pause.
- This determines a considerable energy consumption in such types of freezer that goes against the actual needs of household appliance producers. In fact in view of the European rules as regards energy consumption the same house appliance producers are operating in order to obtain effective solutions with the aim of reducing the energy consumption.
- In addition the control and the stabilisation of the temperature in various containers of the freezer is difficult even with a continuous activation of the same compressor.
- EP-A-1 006 324 and WO 01 27551 A show a refrigerator shelf made up of a cooking serpentine and tool elements which form a grid structure with passages into which a container of eutectic mixture is inserted.
- In view of the state of the art herein described, scope of the present invention is to realise a refrigerator appliance that allows to obtain an energy consumption lower than the known freezers.
- According to the present invention, such scope is attained by means of a refrigerator appliance as defined in
claim 1. - Owing to the present invention it is possible to realise a refrigerator appliance that by means of the use of eutectic plate for each shelf of the refrigeration grid allows to obtain cooling compartments for food with a low energy consumption and in addition allows to better stabilise the temperature inside each compartment.
- The characteristics and the advantages of the present invention will become evident from the following detailed description of an embodiment thereof, that is illustrated as a non- limiting example in the enclosed drawings, in which:
- Figure 1 is a schematic front view of a vertical freezer provided with a refrigeration grid according to the present invention;
- Figure 2 is a section view according to line II-II of the freezer in Figure 1;
- Figure 3a is a top view of a shelf of the refrigeration grid in Figure 1 provided with a first type of eutectic plate;
- Figure 3b is a section according to line III-III in Figure 3a;
- Figure 4a is a top view of a shelf of the refrigeration grid in Figure 1 provided with a second type of eutectic plates;
- Figure 4b is a section according to line IV-IV of the shelf in Figure 4a.
-
- With reference to Figure 1 a vertical freezer is shown comprising a
cabinet 1 and arefrigeration grid 2 according to the present invention. - The
refrigeration grid 2 is arranged along the entire width and the length of thecabinet 1 so as to definehorizontal shelves 3 that are arranged at a certain distance the ones from the others and made up of acooling coil 4.Such shelves 3 are transversally connected the ones with the others by means ofrods cooling coil 4 and that are fastened to the side walls of the freezer by means ofsupports 7. Thecooling coil 4 of theshelves 3 formsexternal folds 8 with a small length of coil andfolds 9 with a greater length of coil so as to createappropriate housings 20 that are suitable to receiveeutectic plates 10 of a first type that are arranged horizontally, as shown in Figures 3a, 3b. Sucheutectic plates 10 are removably fastened to thecooling coil 4 of every shelf and precisely they are connected with thefolds 9 so as to occupy a space almost equal to one time and a half thehousing 20. Theplates 10 are coupled to thecoil 4 in order to have considerable contact points both with thesame coil 4 as well as with therods coil 4 so as to facilitate the thermal exchange. Sucheutectic plates 10 have a small thickness but wide lateral surfaces, they are made up of a container generally made of plastic material and they contain an amount of eutectic solution of approximately 0.6 litres. - In the
cabinet 1 besides theshelves 3 witheutectic plates 10shelves 3 are also present that are provided witheutectic plates 11 of a second type that are smaller than theeutectic plates 10 and inserted horizontally each one in everyhousing 20 of thefolds 9 of thecoil 4 in an extractable way, as shown more in detail in Figures 4a, 4b. Sucheutectic plates 11 are coupled to thecoil 4 too, in order to have considerable points of contact with it and with therods coil 4 and they have a smaller extension of the lateral surfaces.Such plates 11 are made up of a container that is generally made of a plastic material and they contain an amount of eutectic solution of approximately 0.14 litres. - The
refrigeration grid 2, that is part of a refrigerating circuit (not visible in the figures) comprising an opportune compressor and a condenser, allows to have shelves, each having equal temperature, at various temperatures, and precisely at increasing temperature from the top towards the bottom in cabinet the 1 of the freezer. Therefore it is possible to haveshelves 12 to deep freeze food with temperature at -30°C,shelves 200 for quick freezing with temperature at -26°C, medium freezingshelves 13 with temperature at -22°C,storage shelves 14 with temperature at - 18°C. - In addition it is also possible to have at least one
shelf 15 at differentiated and sectorial eutectic temperature on asame shelf 3 by usingeutectic plates same shelf 15. - The shelves provided with
eutectic plate cabinet 1. Such containers 40-45 are closed by respective doors 50-55 while theentire cabinet 1 is closed by adoor 60. - The
eutectic plates eutectic plates - Preferably the
eutectic plates - The
eutectic plates 11, since they are extractable from thehousings 20 that are provided in theshelves 3, can be removed and utilised in various ways outside the freezer, for instance in portable refrigerators. - Preferably the
cooling coil 4 defineshousings 20 foreutectic plates - Preferably each one of the
shelves 3 comprises the same number ofhousings 20 foreutectic plates
Claims (9)
- Refrigerator appliance comprising a cabinet (1) and at least a refrigerating circuit with compressor and condenser and a refrigeration grid (2), said refrigeration grid (2) extending in length and width inside said cabinet (1) thus defining horizontal shelves (3; 12, 200, 13, 14, 15) that are arranged at a given distance the ones from the others, said shelves (3; 12, 200, 13, 14, 15) being made up of a cooling coil (4) which forms external folds (8) with a small length of coil (4) and folds (9) with a greater length of coil (4) so as to create housings (20) for receiving eutectic plates (10, 11), said eutectic plates (10, 11) being removably fastened to said cooling coil (4) of each shelf (3; 12, 200, 13, 14, 15).
- Refrigerator appliance according to claim 1, characterized in that said cooling coil (4) of said shelves (3) defines said housings (20) with a constant pitch.
- Refrigerator appliance according to claim 1, characterized in that each one of said shelves (3) comprises the same number of housings (20).
- Refrigerator appliance according to claim 1, characterized in that said eutectic plates (11) are fastened in an extractable way in said housings (20) of said cooling coil (4).
- Refrigerator appliance according to claim 1, characterized in that said shelves (3; 12, 200, 13, 14) comprise eutectic plates (10, 11) having different colours according to the type of eutectic solutions contained.
- Refrigerator appliance according to claim 1, characterized in that at least one (15) of said shelves (3; 15) is a differentiated and sectorial eutectic temperature, by using eutectic plates at different temperatures on the same shelf (3; 15)
- Refrigerator appliance according to claim 1, characterized in that said eutectic plates (11) have a thickness equal to the thickness of the coiling coil (4).
- Refrigerator appliance according to claim 1, characterized in that said eutectic plates (10) have a thickness greater than the thickness of the coiling coil (4)
- Refrigerator appliance according to claim 1, characterized in that said eutectic plates (10, 11) is coupled to said cooling coil (4) and to rods (5, 6) that are welded to said cooling coil (4).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2000MI000231A IT1316359B1 (en) | 2000-02-11 | 2000-02-11 | REFRIGERANT GRILL WITH REFRIGERANT PLATE EQUIPPED WITH PLATES |
ITMI000231 | 2000-02-11 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1124101A2 EP1124101A2 (en) | 2001-08-16 |
EP1124101A3 EP1124101A3 (en) | 2001-09-05 |
EP1124101B1 true EP1124101B1 (en) | 2005-11-16 |
Family
ID=11443985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01200404A Expired - Lifetime EP1124101B1 (en) | 2000-02-11 | 2001-02-05 | Refrigerator appliance with refrigeration grid provided with eutectic plates |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1124101B1 (en) |
DE (1) | DE60114899T2 (en) |
ES (1) | ES2252142T3 (en) |
IT (1) | IT1316359B1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTO20030991A1 (en) * | 2003-12-11 | 2005-06-12 | Merloni Elettrodomestici Spa | REFRIGERANT APPLIANCE. |
DE102004006272A1 (en) * | 2004-02-09 | 2005-08-25 | Linde Kältetechnik GmbH & Co. KG | Goods presentation furniture with display shelf |
DE102004035017A1 (en) * | 2004-07-20 | 2006-02-16 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigerating appliance with cold storage |
DE202006013713U1 (en) * | 2006-09-07 | 2006-11-02 | BSH Bosch und Siemens Hausgeräte GmbH | A method for providing refrigerator shelving has the system evaporator tubing formed in a flat panel with closely adjacent bends at each side with no additional components |
GB2489011A (en) * | 2011-03-16 | 2012-09-19 | Green Structures Ltd | Thermal energy store |
US10156395B2 (en) * | 2013-12-23 | 2018-12-18 | The Coca-Cola Company | Intermittent power grid ready cooler |
US10188223B2 (en) | 2016-09-26 | 2019-01-29 | Hussmann Corporation | Refrigerated merchandiser including eutectic plate refrigeration |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2405834A (en) * | 1941-12-29 | 1946-08-13 | Dole Refrigerating Co | Device for freezing foods |
JPS623659Y2 (en) * | 1981-01-19 | 1987-01-27 | ||
EP0098052A3 (en) * | 1982-06-26 | 1984-03-28 | THORN EMI Domestic Appliances Limited | Improvements in or relating to freezers |
WO1994005959A1 (en) * | 1992-09-01 | 1994-03-17 | Allan John Cassell | Refrigerator and freezer units |
IT1303811B1 (en) * | 1998-12-02 | 2001-02-23 | Whirlpool Co | SHELF FOR VERTICAL FREEZERS. |
DE19948480A1 (en) * | 1999-10-08 | 2001-04-12 | Bsh Bosch Siemens Hausgeraete | Heat exchangers such as evaporators, condensers or the like |
-
2000
- 2000-02-11 IT IT2000MI000231A patent/IT1316359B1/en active
-
2001
- 2001-02-05 EP EP01200404A patent/EP1124101B1/en not_active Expired - Lifetime
- 2001-02-05 ES ES01200404T patent/ES2252142T3/en not_active Expired - Lifetime
- 2001-02-05 DE DE60114899T patent/DE60114899T2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE60114899D1 (en) | 2005-12-22 |
IT1316359B1 (en) | 2003-04-10 |
EP1124101A3 (en) | 2001-09-05 |
ITMI20000231A0 (en) | 2000-02-11 |
DE60114899T2 (en) | 2006-08-03 |
ES2252142T3 (en) | 2006-05-16 |
EP1124101A2 (en) | 2001-08-16 |
ITMI20000231A1 (en) | 2001-08-11 |
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