EP1966550A2 - A cooling device - Google Patents

A cooling device

Info

Publication number
EP1966550A2
EP1966550A2 EP06830732A EP06830732A EP1966550A2 EP 1966550 A2 EP1966550 A2 EP 1966550A2 EP 06830732 A EP06830732 A EP 06830732A EP 06830732 A EP06830732 A EP 06830732A EP 1966550 A2 EP1966550 A2 EP 1966550A2
Authority
EP
European Patent Office
Prior art keywords
air
freezer compartment
special purpose
propeller
evaporator
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.)
Granted
Application number
EP06830732A
Other languages
German (de)
French (fr)
Other versions
EP1966550B1 (en
Inventor
Fatih Demiray
Soner Kahraman
Turgay Ercan
Emre Arisoy
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Publication of EP1966550A2 publication Critical patent/EP1966550A2/en
Application granted granted Critical
Publication of EP1966550B1 publication Critical patent/EP1966550B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • F25D2317/061—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 through special compartments
    • 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
    • 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
    • F25D2317/0681—Details thereof
    • 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
    • F25D2317/0682—Two or more fans
    • 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 relates to a cooling device comprising a compartment utilized in last freezing of food.
  • Cooling devices comprise a cooling compartment wherein food and beverages are stored and a freezing compartment that provides storing of food by freezing. When new foods are emplaced in the freezing compartment, these foods have to be frozen lastly and the temperature of the foods previously emplaced in the cooling compartment should be kept at the same level without oscillating much. Special purpose freezer compartments emplaced in the freezing compartment are utilized for the last freezing process.
  • the object of the present invention is the realization of a cooling device comprising a special purpose freezer compartment that provides last freezing of the foods emplaced therein.
  • the cooling and the freezer compartments and also a special purpose freezer compartment wherein last freezing process can be done can all be cooled by utilizing only one evaporator and a Ian.
  • the Ian utilized comprises two separate coaxial propellers arranged on the same shaft. While the special purpose freezer compartment is cooled by one of the propellers, the cooling and the freezer compartments are cooled by the other. In order not to cool the special purpose freezer compartment when not required, a shutter is used, regulating aspiration of air from the special purpose freezer compartment , situated at the outlet of the special purpose freezer compartment.
  • one of the propellers is emplaced in the special purpose freezer compartment.
  • the special purpose freezer compartment when a second shutter situated at the inlet of the special purpose freezer compartment and the shutter situated at the outlet of the special purpose freezer compartment are closed at the same time, the special purpose freezer compartment is isolated from the inner volume of the cooling compartment.
  • the special purpose freezer compartment by means of a heater disposed in the special purpose freezer compartment, the special purpose freezer compartment can also be used to thaw frozen food.
  • a separator situated inside the special purpose freezer compartment the air blown by the propeller inside the special purpose freezer compartment can be circulated inside the compartment. By operating the heater simultaneously, the air can be heated and the frozen foods can be thawed.
  • the propellers are disposed outside the special purpose freezer compartment.
  • the propeller blowing air into the special purpose freezer compartment aspirates air over the entire surface of the evaporator whereas the propeller blowing air into the cooling and freezer compartments aspirate air from a portion of the evaporator. Accordingly in the last freezing process, the air blown into the special purpose freezer compartment is provided to be colder than the air blown into the cooling and freezer compartments.
  • Figure 1 - is the schematic view of a cooling device.
  • Figure 2 - is the schematic view of a cooling device in another embodiment of the present invention.
  • Figure 3 - is the schematic view of a cooling device in yet another embodiment of the present invention.
  • the cooling device (1) comprises a cooling compartment (2) wherein food and beverages are stored, a freezer compartment (3) providing storing of food by freezing, and a special purpose freezer compartment (4) situated in the freezer compartment (3) that provides last freezing of the foods empkced therein.
  • the cooling device (1) furthermore comprises a compressor (5) providing to carry out the cooling cycle, a condenser (6), an evaporator (7), and a Ian (8) that aspirates air over the evaporator (7) to cool the compartments (2,3 and 4).
  • the Ian (8) comprises a motor (9), a shaft (10) connected to the motor (9), a first propeller (11) situated on the shaft (10), by rotating together with the shaft (10) that provides the air that is cooled as it passes over the evaporator (7) to be directed to the cooling and freezer compartments (2 and 3), and a second propeller (12) situated on the shaft (10), by rotating together with the shaft (10) that provides the air cooled as it passes over the evaporator (7) to be directed to the special purpose freezer compartment (4).
  • the geometry of the propellers (11 and 12) are determined according to the cooling requirements of the compartments (2,3 and 4).
  • the cooling device (1) comprises an air suction channel (13) wherein the evaporator (7) is emplaced, a first air distribution channel (14) that provides to direct the air blown by the Ian (8) to the cooling and freezer compartments (2 and 3), a second air distribution channel (15) that provides to direct the air blown by the Ian (8) to the special purpose freezer compartment (4), an opening (16) through which the air blown by the second propeller (12) leaves the special purpose freezer compartment (4), and a shutter (17) that provides to direct the air blown by the Ian (8) to one of the air distribution channels (14 and 15) ( Figure 1).
  • the air flowing from the opening (16) is delivered to the freezer compartment (3) or directly to the space wherein the evaporator (7) is situated.
  • the cooling device (1) of the present invention when the cooling process is started by actuating the compressor (5) and the Ian (8), if only the cooling and freezer compartments (2 and 3) will be cooled, the opening (16) is closed by the shutter (17). In this case, the air blown by the first propeller (11) reaches to the cooling and freezer compartments (2 and 3) passing through the first air distribution channel (14). When the shutter (17) closes the opening (16), suction cannot be made from the special purpose freezer compartment (4). Therefore, the special purpose freezer compartment (4) cannot be cooled since aspiration can't be made over the evaporator (7) by the second propeller (12).
  • the cooling device (1) of the present invention when the cooling process is started by actuating the compressor (5) and the Ian (8), if last freezing of the foods emplaced in the special purpose freezer compartment (4) is desired, the shutter (17) is changed to the open position, allowing air flow from the opening (16). In this case, the air blown by the first propeller (11) reaches the cooling and freezer compartments (2 and 3) passing through the first air distribution channel (14); the air blown by the second propeller (12) reaches the special purpose freezer compartment (4), passing through the second air distribution channel (15).
  • the air that is heated while cooling the foods in the compartments (2,3 and 4) is aspirated by the Ian (8) by way of the air suction channel (13) and passed over the evaporator (7). Passing the air over the entire surface of the evaporator (7) and circulating directly in the special purpose freezer compartment (4) by the second propeller (12) accelerates the cooling process.
  • the second propeller (12) is situated in the special purpose freezer compartment (4).
  • the cooling device (1) comprises a second shutter (18) situated in the second air distribution channel (15), a separator (20) disposed in the special purpose freezer compartment (4), providing to create an air circulation in the special purpose freezer compartment (4) while the second propeller (12) rotates, and a heater (19) situated in the special purpose freezer compartment (4) that provides to heat the frozen foods that are desired to be thawed ( Figure 2).
  • the special purpose freezer compartment (4) can be utilized for last freezing or for thawing of frozen foods.
  • the separator (20) preferably extends between two opposite walls of the special purpose freezer compartment (4). The air blown by the second propeller (12) flows over the separator (20) and makes a return from under the separator (20) by means of the gap between the separator (20) and the front and rear walls.
  • the first shutter (17) is changed to the closed position to prevent air flow from the opening (16)
  • the second shutter (18) is changed to the closed position to prevent air flow from the second air distribution channel (15).
  • the second propeller (12) that starts to rotate when the fan (8) is actuated, will start to circulate the air inside the special purpose freezer compartment (4).
  • the air circulated by the second propeller (12) is heated by the heater (19) providing to thaw the frozen foods in the special purpose freezer compartment (4). Since air flow is not allowed from the opening (16) by closing the first shutter (17), and from the second air distribution channel (15) by closing the second shutter (18), the air heated by the heater (19) is prevented from flowing into the cooling and freezer compartments (2 and 3).
  • the second propeller (12) is situated outside the special purpose freezer compartment (4).
  • the second propeller (12) aspirates air from the entire surface of the evaporator (7)
  • the first propeller (11) aspirates the air that passes from a portion of the evaporator (7) surface ( Figure 3).
  • the cooling device (1) is operated similar to the first embodiment.
  • the air blown by the first propeller (11) reaches the cooling and freezer compartments (2 and 3) passing through the first air distribution channel (14); the air blown by the second propeller (12) reaches the special purpose freezer compartment (4), passing through the second air distribution channel (15).
  • the cooling process is further accelerated by passing the air blown by the second propeller (12) over the entire surface of the evaporator (7).
  • the special purpose freezer compartment (4) air is provided to be delivered directly to the foods that will be subjected to the last freezing process, and the duration of the last freezing process is reduced.

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)
  • Freezing, Cooling And Drying Of Foods (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

By way of the present invention, the duration of the fast freezing process is reduced by delivering the cooled air directly to the foods that will be subjected to the fast freezing process by means of the special purpose freezer compartment (4).

Description

Description A COOLING DEVICE
[0001] The present invention relates to a cooling device comprising a compartment utilized in last freezing of food.
[0002] Cooling devices comprise a cooling compartment wherein food and beverages are stored and a freezing compartment that provides storing of food by freezing. When new foods are emplaced in the freezing compartment, these foods have to be frozen lastly and the temperature of the foods previously emplaced in the cooling compartment should be kept at the same level without oscillating much. Special purpose freezer compartments emplaced in the freezing compartment are utilized for the last freezing process.
[0003] Foods have to be suitably frozen in order to store them for a long period of time without losing their vitamin and mineral values. If the freezing process is slow, the water molecules crystallize such that the cell membranes are damaged and the food loses its nutritional value. In the special purpose freezer compartments the acceleration of the freezing process is maintained by various methods.
[0004] The object of the present invention is the realization of a cooling device comprising a special purpose freezer compartment that provides last freezing of the foods emplaced therein.
[0005] In the cooling device realized in order to fulfill the objectives of the present invention, explicated in the first claim and dependent claims thereof, the cooling and the freezer compartments and also a special purpose freezer compartment wherein last freezing process can be done, can all be cooled by utilizing only one evaporator and a Ian. The Ian utilized comprises two separate coaxial propellers arranged on the same shaft. While the special purpose freezer compartment is cooled by one of the propellers, the cooling and the freezer compartments are cooled by the other. In order not to cool the special purpose freezer compartment when not required, a shutter is used, regulating aspiration of air from the special purpose freezer compartment , situated at the outlet of the special purpose freezer compartment.
[0006] In an embodiment of the present invention, one of the propellers is emplaced in the special purpose freezer compartment. In this embodiment, when a second shutter situated at the inlet of the special purpose freezer compartment and the shutter situated at the outlet of the special purpose freezer compartment are closed at the same time, the special purpose freezer compartment is isolated from the inner volume of the cooling compartment. In this embodiment, by means of a heater disposed in the special purpose freezer compartment, the special purpose freezer compartment can also be used to thaw frozen food. By means of a separator situated inside the special purpose freezer compartment, the air blown by the propeller inside the special purpose freezer compartment can be circulated inside the compartment. By operating the heater simultaneously, the air can be heated and the frozen foods can be thawed.
[0007] In another embodiment of the present invention, the propellers are disposed outside the special purpose freezer compartment. In this embodiment, the propeller blowing air into the special purpose freezer compartment aspirates air over the entire surface of the evaporator whereas the propeller blowing air into the cooling and freezer compartments aspirate air from a portion of the evaporator. Accordingly in the last freezing process, the air blown into the special purpose freezer compartment is provided to be colder than the air blown into the cooling and freezer compartments.
[0008] The cooling device realized in order to fulfill the objectives of the present invention is illustrated in the attached figures, where:
[0009] Figure 1 - is the schematic view of a cooling device.
[0010] Figure 2 - is the schematic view of a cooling device in another embodiment of the present invention.
[0011] Figure 3 - is the schematic view of a cooling device in yet another embodiment of the present invention.
[0012] Elements shown in figures are numbered as follows:
1. Cooling device
2. Cooling compartment
3. Freezer compartment
4. Special purpose freezer compartment
5. Compressor
6. Condenser
7. Evaporator
8. Fan
9. Fan motor
10. Shaft
11. First propeller
12. Second propeller
13. Air suction channel
14. First air distribution channel 15. Second air distribution channel
16. Opening
17. Shutter
18. Second shutter
19. Heater
20. Separator
[0013] The cooling device (1) comprises a cooling compartment (2) wherein food and beverages are stored, a freezer compartment (3) providing storing of food by freezing, and a special purpose freezer compartment (4) situated in the freezer compartment (3) that provides last freezing of the foods empkced therein.
[0014] The cooling device (1) furthermore comprises a compressor (5) providing to carry out the cooling cycle, a condenser (6), an evaporator (7), and a Ian (8) that aspirates air over the evaporator (7) to cool the compartments (2,3 and 4).
[0015] The Ian (8) comprises a motor (9), a shaft (10) connected to the motor (9), a first propeller (11) situated on the shaft (10), by rotating together with the shaft (10) that provides the air that is cooled as it passes over the evaporator (7) to be directed to the cooling and freezer compartments (2 and 3), and a second propeller (12) situated on the shaft (10), by rotating together with the shaft (10) that provides the air cooled as it passes over the evaporator (7) to be directed to the special purpose freezer compartment (4).
[0016] The geometry of the propellers (11 and 12) are determined according to the cooling requirements of the compartments (2,3 and 4).
[0017] The cooling device (1) comprises an air suction channel (13) wherein the evaporator (7) is emplaced, a first air distribution channel (14) that provides to direct the air blown by the Ian (8) to the cooling and freezer compartments (2 and 3), a second air distribution channel (15) that provides to direct the air blown by the Ian (8) to the special purpose freezer compartment (4), an opening (16) through which the air blown by the second propeller (12) leaves the special purpose freezer compartment (4), and a shutter (17) that provides to direct the air blown by the Ian (8) to one of the air distribution channels (14 and 15) (Figure 1).
[0018] The air flowing from the opening (16) is delivered to the freezer compartment (3) or directly to the space wherein the evaporator (7) is situated.
[0019] In the cooling device (1) of the present invention, when the cooling process is started by actuating the compressor (5) and the Ian (8), if only the cooling and freezer compartments (2 and 3) will be cooled, the opening (16) is closed by the shutter (17). In this case, the air blown by the first propeller (11) reaches to the cooling and freezer compartments (2 and 3) passing through the first air distribution channel (14). When the shutter (17) closes the opening (16), suction cannot be made from the special purpose freezer compartment (4). Therefore, the special purpose freezer compartment (4) cannot be cooled since aspiration can't be made over the evaporator (7) by the second propeller (12).
[0020] In the cooling device (1) of the present invention, when the cooling process is started by actuating the compressor (5) and the Ian (8), if last freezing of the foods emplaced in the special purpose freezer compartment (4) is desired, the shutter (17) is changed to the open position, allowing air flow from the opening (16). In this case, the air blown by the first propeller (11) reaches the cooling and freezer compartments (2 and 3) passing through the first air distribution channel (14); the air blown by the second propeller (12) reaches the special purpose freezer compartment (4), passing through the second air distribution channel (15). Then, the air that is heated while cooling the foods in the compartments (2,3 and 4) is aspirated by the Ian (8) by way of the air suction channel (13) and passed over the evaporator (7). Passing the air over the entire surface of the evaporator (7) and circulating directly in the special purpose freezer compartment (4) by the second propeller (12) accelerates the cooling process.
[0021] In another embodiment of the present invention, the second propeller (12) is situated in the special purpose freezer compartment (4). In this embodiment, the cooling device (1) comprises a second shutter (18) situated in the second air distribution channel (15), a separator (20) disposed in the special purpose freezer compartment (4), providing to create an air circulation in the special purpose freezer compartment (4) while the second propeller (12) rotates, and a heater (19) situated in the special purpose freezer compartment (4) that provides to heat the frozen foods that are desired to be thawed (Figure 2). In this embodiment, the special purpose freezer compartment (4) can be utilized for last freezing or for thawing of frozen foods. The separator (20) preferably extends between two opposite walls of the special purpose freezer compartment (4). The air blown by the second propeller (12) flows over the separator (20) and makes a return from under the separator (20) by means of the gap between the separator (20) and the front and rear walls.
[0022] In this embodiment, if last freezing of the foods emplaced in the special purpose freezer compartment (4) is desired, then air flow is allowed from the opening (16) by changing the first shutter (17) to the open position, and air flow is allowed from the second air distribution channel (15) by changing the second shutter (18) to the open position. Accordingly, the air blown by the first propeller (11) reaches the cooling and freezer compartments (2 and 3) passing through the first air distribution channel (14); the air blown by the second propeller (12) reaches the special purpose freezer compartment (4), passing through the second air distribution channel (15). Then the air that is heated while cooling the foods in the compartments (2,3 and 4) is aspirated by the fan (8) by way of the air suction channel (13) and passed over the evaporator (7). Circulating the air passing over the entire surface of the evaporator (7) by the second propeller (12) directly in the special purpose freezer compartment (4) accelerates the cooling process.
[0023] In this embodiment, if thawing of the frozen foods empkced in the special purpose freezer compartment (4) is desired, the first shutter (17) is changed to the closed position to prevent air flow from the opening (16), and the second shutter (18) is changed to the closed position to prevent air flow from the second air distribution channel (15). In this case, the second propeller (12) that starts to rotate when the fan (8) is actuated, will start to circulate the air inside the special purpose freezer compartment (4). The air circulated by the second propeller (12) is heated by the heater (19) providing to thaw the frozen foods in the special purpose freezer compartment (4). Since air flow is not allowed from the opening (16) by closing the first shutter (17), and from the second air distribution channel (15) by closing the second shutter (18), the air heated by the heater (19) is prevented from flowing into the cooling and freezer compartments (2 and 3).
[0024] In another embodiment of the present invention, the second propeller (12) is situated outside the special purpose freezer compartment (4). In this embodiment, the second propeller (12) aspirates air from the entire surface of the evaporator (7), and the first propeller (11) aspirates the air that passes from a portion of the evaporator (7) surface (Figure 3). In this embodiment, when only the cooling and freezer compartments (2 and 3) are desired to be cooled or when fast freezing process is desired to be carried out in the special purpose freezer compartment (4), the cooling device (1) is operated similar to the first embodiment. In this embodiment, while the special purpose freezer compartment (4) is being cooled, the air blown by the first propeller (11) reaches the cooling and freezer compartments (2 and 3) passing through the first air distribution channel (14); the air blown by the second propeller (12) reaches the special purpose freezer compartment (4), passing through the second air distribution channel (15). While the air blown by the first propeller (11) is passed over some portion of the evaporator (7) surface, the cooling process is further accelerated by passing the air blown by the second propeller (12) over the entire surface of the evaporator (7). By way of the special purpose freezer compartment (4), air is provided to be delivered directly to the foods that will be subjected to the last freezing process, and the duration of the last freezing process is reduced.

Claims

Claims
[0001] A cooling device (1) comprising a cooling compartment (2) wherein food and beverages are stored, a freezer compartment (3) providing storing of foods by freezing, and a special purpose freezer compartment (4) situated in the freezer compartment (3) that provides fast freezing of the foods emplaced therein, a compressor (5), a condenser (6), an evaporator (7) and a fan (8) that aspirates air over the evaporator (7) to cool the compartments (2,3 and 4) characterized by a fan (8) having a motor (9), a shaft (10) connected to the motor (9), a first propeller (11) situated on the shaft (10), rotating together with the shaft (10) that provides the air cooled as it passes over the evaporator (7) to be directed to the cooling and freezer compartments (2 and 3), and a second propeller (12) situated on the shaft (10), rotating together with the shaft (10) that provides the air cooled as it passes over the evaporator (7) to be directed to the special purpose freezer compartment (4).
[0002] A cooling device (1) as in Claim 1, characterized by an air suction channel (13) wherein the evaporator (7) is emplaced, a first air distribution channel (14) that provides to direct the air blown by the fan (8) to the cooling and freezer compartments (2 and 3), a second air distribution channel (15) that provides to direct the air blown by the fan (8) to the special purpose freezer compartment (4), an opening (16) through which the air blown by the second propeller (12) leaves the special purpose freezer compartment (4), and a shutter (17) that provides to direct the air blown by the fan (8) to one of the air distribution channels (14 and 15).
[0003] A cooling device (1) as in Claim 2, characterized by the second propeller (12) situated in the special purpose freezer compartment (4), a second shutter (18) situated in the second air distribution channel (15), a separator (20) disposed in the special purpose freezer compartment (4), providing to create an air circulation in the special purpose freezer compartment (4) when the second propeller (12) is actuated and a heater (19) situated in the special purpose freezer compartment (4) that provides to heat the frozen foods desired to be thawed.
[0004] A cooling device (1) as in any one of the above claims, characterized by the second propeller (12) situated outside the special purpose freezer compartment (4) that aspirates air from the entire surface of the evaporator (7), and the first propeller (11) that aspirates air from a portion of the evaporator (7) surface.
EP06830732A 2005-12-29 2006-12-20 A cooling device Not-in-force EP1966550B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR200505319 2005-12-29
PCT/EP2006/069955 WO2007074116A2 (en) 2005-12-29 2006-12-20 A cooling device

Publications (2)

Publication Number Publication Date
EP1966550A2 true EP1966550A2 (en) 2008-09-10
EP1966550B1 EP1966550B1 (en) 2009-04-08

Family

ID=38134105

Family Applications (1)

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EP06830732A Not-in-force EP1966550B1 (en) 2005-12-29 2006-12-20 A cooling device

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EP (1) EP1966550B1 (en)
AT (1) ATE428096T1 (en)
DE (1) DE602006006222D1 (en)
ES (1) ES2323436T3 (en)
WO (1) WO2007074116A2 (en)

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TR200908597A2 (en) * 2009-11-12 2010-08-23 Vestel Beyaz Eşya Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇@ A freezer chamber
EP2752631B1 (en) * 2011-08-25 2019-02-20 Hefei Midea Refrigerator Co., Ltd. Refrigerator
CN110873492A (en) * 2018-08-30 2020-03-10 青岛海尔特种电冰柜有限公司 Refrigeration equipment and control method thereof

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US3080727A (en) * 1961-08-14 1963-03-12 Philco Corp Refrigeration defrosting
US5899083A (en) * 1997-03-12 1999-05-04 Whirlpool Corporation Multi-compartment refrigeration system
IT1313157B1 (en) * 1999-08-05 2002-06-17 Candy Spa REFRIGERATOR WITH COMPARTMENT FOR QUICK COOLING OF FOOD
WO2001029493A1 (en) * 1999-10-20 2001-04-26 Daewoo Electronics Co., Ltd. Cooling air circulating system for use in a refrigerator

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Also Published As

Publication number Publication date
ES2323436T3 (en) 2009-07-15
WO2007074116A2 (en) 2007-07-05
ATE428096T1 (en) 2009-04-15
EP1966550B1 (en) 2009-04-08
DE602006006222D1 (en) 2009-05-20
WO2007074116A3 (en) 2007-08-30

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