EP1771693A1 - A cooling device and a control method thereof - Google Patents

A cooling device and a control method thereof

Info

Publication number
EP1771693A1
EP1771693A1 EP05758386A EP05758386A EP1771693A1 EP 1771693 A1 EP1771693 A1 EP 1771693A1 EP 05758386 A EP05758386 A EP 05758386A EP 05758386 A EP05758386 A EP 05758386A EP 1771693 A1 EP1771693 A1 EP 1771693A1
Authority
EP
European Patent Office
Prior art keywords
temperature
compressor
compartment
cooling
additional
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Withdrawn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
EP05758386A
Other languages
German (de)
French (fr)
Inventor
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 EP1771693A1 publication Critical patent/EP1771693A1/en
Withdrawn legal-status Critical Current

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
    • 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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • 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
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
    • 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
    • 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
    • F25D2700/12—Sensors measuring the inside temperature
    • 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
    • F25D2700/12—Sensors measuring the inside temperature
    • F25D2700/121—Sensors measuring the inside temperature of particular compartments

Definitions

  • This invention relates to a cooling device comprising more than one compartment and a control method thereof, wherein means are provided to control the compartment temperatures effectively.
  • Cooling devices comprise a cooling compartment to preserve foods and beverages and a freezing compartment to preserve foods by freezing.
  • cooling devices where, in lieu of forced air circulation, cooling process is performed by means of compartment evaporators which are in series or parallel with each other, operating and stand-by periods of the compressor are controlled according to the cooling and / or freezing compartment temperatures.
  • cooling compartment temperature typically oscillates within a wide range. For instance, cooling compartment temperature can vary between +2 and +8 degrees Celsius. Mentioned oscilation can cause problems while preserving some kinds of foods. For example, if it is desired to preserve such foods as mince, meat etc.
  • the temperature of said foods varies in a narrower range such as +1 to +2 degrees Celsius.
  • a narrower range such as +1 to +2 degrees Celsius.
  • Air is transferred directly to the mentioned additional compartment through a fan and, the operation of the fan is controlled by detecting the temperature change by means of a sensor positioned inside the compartment.
  • cooling devices where cooling process is performed by forced air circulation in lieu of utilizing compartment evaporators which are in series or in parallel with each other, there is not any application encountered, wherein an additional compartment which is positioned inside the cooling compartment and the temperature of which oscillates in a narrower and lower range compared to that of the cooling compartment, is utilized.
  • the aim of the present invention is the realization of a cooling device and a control method thereof, which incorporates an additional compartment which is positioned inside the cooling compartment and the temperature of which oscillates in a narrower and lower range compared to that of the cooling compartment.
  • Fig.1 - is a schematic view of a cooling device.
  • Fig.2 - is the flow chart of a control method of a cooling device.
  • the cooling device (1) comprises a cooling compartment (2) wherein foods and beverages are preserved, a freezing compartment (3) which is used to preserve the foods frozen, a compressor (4) whereby the refrigeration cycle is accomplished, a cooling compartment evaporator (5) ensuring that the internal volume of the cooling compartment (2) is cooled by absorbing thermal energy, a freezing compartment evaporator (6) connected to the cooling compartment evaporator (5), a cooling compartment thermostat (7) whereby the compressor (4) is operated and stopped by detecting the temperature inside the cooling compartment (2), a cooling compartment (2) rear wall (8) where preferably the cooling compartment evaporator (5) is positioned, an adjusting knob (14) which enables the user to select the operating condition that corresponds to different cooling amounts and that can vary between the highest and lowest values of the temperature of the cooling compartment (2) and, whereby the activation and / or deactivation temperatures of the compressor (4) are determined accordingly and, an additional compartment (9) which is located inside the cooling compartment (2) wherein its temperature oscillates within a narrower and lower range compared to that of the cooling
  • the additional compartment (9) is preferably in the form of a drawer and is positioned into the cooling compartment (2) such that its rear side leans against the rear wall (8) and, is pulled out if it is to be used.
  • the cooling device (1) comprises an upper lid (10) which partially covers the upper portion of the additional compartment (9), an aperture (12) between the upper lid (10) and the rear wall (8) whereby air can enter the additional compartment (9), a guide (11) which is positioned at the edge of the aperture (12), extending approximately parallel to the rear wall (8) and whereby air is routed to the aperture (12), an additional compartment thermostat (13) whereby the compressor (4) is operated and stopped by detecting the temperature inside the additional compartment (9) and, an outlet opening (15) which ensures the outflow of air from the additional compartment (9).
  • the guide (11) is positioned on the upper lid (10).
  • control method of the cooling device (1) it is accomplished to control the temperatures of the cooling and freezing compartments (2 and 3) by activating and / or deactivating the compressor (4).
  • control method of the cooling device (1) in accordance with the present invention, following symbols are utilized :
  • Tl is the temperature where the additional compartment thermostat (13) activates the compressor (4)
  • T2 is the temperature where the additional compartment thermostat (13) de ⁇ activates the compressor (4)
  • T3 is the safety temperature which is lower than T2 and where the additional compartment thermostat (13) deactivates the compressor (4) in order to prevent the additional compartment (9) from being excessively cooled even when the cooling compartment (2) needs to be cooled further.
  • T4 is the temperature where the cooling compartment thermostat (7) activates the compressor (4), as the adjusting knob (14) is at the coldest position for the cooling compartment (2) determined by the manufacturer.
  • T5 is the temperature where the cooling compartment thermostat (7) activates the compressor (4), as the adjusting knob (14) is at a position determined by the user.
  • T6 is the temperature where the cooling compartment thermostat (7) deactivates the compressor (4), as the adjusting knob (14) is at a position determined by the user.
  • T7 is the temperature where the cooling compartment thermostat (7) deactivates the compressor (4), as the adjusting knob (14) is at the hottest position for the cooling compartment (2) determined by the manufacturer.
  • T8 is the safety temperature which is lower than T7 and where the cooling compartment thermostat (7) deactivates the compressor (4) in order to prevent the cooling compartment (2) from being excessively cooled even when the additional compartment (9) needs to be cooled further.
  • T9 is the temperature where the cooling compartment thermostat (7) activates the compressor (4), as the adjusting knob (14) is at the hottest position for the cooling compartment (2) determined by the manufacturer.
  • Tec is the instantaneous temperature of the cooling compartment (2) detected by the cooling compartment thermostat (7).
  • Tac is the instantaneous temperature of the additional compartment (9) detected by the additional compartment thermostat (13).
  • the operating and stopping moments of the compressor (4) are determined by the cooling compartment thermostat (7) and the additional compartment thermostat (13).
  • the cooling compartment thermostat (7) incorporates a safety temperature (T8) which is a bit lower than the lowest temperature determined through the adjusting knob (14) and where the compressor (4) is deactivated in order to prevent foods inside the cooling compartment (2) from being frozen even when the additional compartment (9) needs to be cooled further.
  • the additional compartment thermostat (13) in ⁇ corporates a safety temperature (T3) which is a bit lower than the deactivation temperature (T2) of the compressor (4) and where the compressor (4) is deactivated in order to prevent the temperature of the additional compartment (9) from being out of the stated temperature range even when the cooling compartment (2) needs to be cooled further.
  • the activation and / or deactivation moments of the compressor (4) are determined either according to the level selected by the user for the cooling compartment (2) if the temperature of the additional compartment (9) is within the limits predetermined by the manufacturer or, according to the coldest adjustment level for the cooling compartment (2) if the temperature of the additional compartment (9) rises excessively or, according to the hottest adjustment level for the cooling compartment (2) if the temperature of the additional compartment (9) decreases excessively.
  • the cooling device (1) is controlled as follows ( Figure 2):
  • the temperature (Tac) of the additional compartment (9) is larger than the deactivation temperature (T2) of the compressor (4), go back to the step (102) where the temperature (Tec) of the cooling compartment (2) is compared with the deactivation temperature (T8) of the compressor (4), If the temperature (Tac) of the additional compartment (9) is smaller than the activation temperature (Tl) of the compressor (4), when they are compared (101), compare the temperature (Tac) of the additional compartment (9) with the safety temperature (T3) where the additional compartment thermostat (13) deactivates the compressor (4) (107), If the temperature (Tac) of the additional compartment (9) is smaller than the safety deactivation temperature (T3) of the compressor (4), compare the temperature (Tec) of the cooling compartment (2) with the activation temperature (T9) of the compressor (4) as the adjusting knob (14) is at the hottest position (108),
  • cooling devices (1) where cooling process is not performed by forced air circulation, it is achieved that air that is cooled by contacting the rear wall (8), where the cooling compartment evaporator (5) is positioned, thanks to the guide (11) and the rear wall (8), enters the interior of the additional compartment (9) through the aperture (12) without diffusing to the inside of the cooling compartment (2) and, that the temperature of the additional compartment (9) oscillates within a narrower and lower range than that of the cooling compartment (2).
  • the guide (11) is positioned on the rear wall (8).

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)

Abstract

This invention relates to a cooling device (1) which comprises an additional compartment (9) inside the cooling compartment (2) and, wherein it is achieved that the temperature of the additional compartment (9) oscillates within a narrow and low range.

Description

Description A COOLING DEVICE AND A CONTROL METHOD THEREOF
[001] This invention relates to a cooling device comprising more than one compartment and a control method thereof, wherein means are provided to control the compartment temperatures effectively.
[002] Cooling devices comprise a cooling compartment to preserve foods and beverages and a freezing compartment to preserve foods by freezing. In cooling devices where, in lieu of forced air circulation, cooling process is performed by means of compartment evaporators which are in series or parallel with each other, operating and stand-by periods of the compressor are controlled according to the cooling and / or freezing compartment temperatures. Since various foods and beverages with very different properties are preserved in it, cooling compartment temperature typically oscillates within a wide range. For instance, cooling compartment temperature can vary between +2 and +8 degrees Celsius. Mentioned oscilation can cause problems while preserving some kinds of foods. For example, if it is desired to preserve such foods as mince, meat etc. inside the cooling compartment, it is preferred that the temperature of said foods varies in a narrower range such as +1 to +2 degrees Celsius. In cooling devices used in homes, since the need for a compartment the temperature of which oscillates in a narrower and lower range as mentioned earlier urges infrequently and since the necessary compartment volume is not much, usually there is provided an additional compartment to meet said needs. Air is transferred directly to the mentioned additional compartment through a fan and, the operation of the fan is controlled by detecting the temperature change by means of a sensor positioned inside the compartment. These types of applications are known from the United States Patent Document US 6405548 and from the United States Patent Application US 2003-0115892 in the current state of the art.
[003] In cooling devices where cooling process is performed by forced air circulation in lieu of utilizing compartment evaporators which are in series or in parallel with each other, there is not any application encountered, wherein an additional compartment which is positioned inside the cooling compartment and the temperature of which oscillates in a narrower and lower range compared to that of the cooling compartment, is utilized.
[004] The aim of the present invention is the realization of a cooling device and a control method thereof, which incorporates an additional compartment which is positioned inside the cooling compartment and the temperature of which oscillates in a narrower and lower range compared to that of the cooling compartment.
[005] The cooling device and the control method realized in order to attain above mentioned aim of the present invention are illustrated in the attached figures where: [006] Fig.1 - is a schematic view of a cooling device.
[007] Fig.2 - is the flow chart of a control method of a cooling device.
[008] Elements shown in figures are numbered as follows:
1. Cooling device
2. Cooling compartment
3. Freezing compartment
4. Compressor
5. Cooling compartment evaporator
6. Freezing compartment evaporator
7. Cooling compartment thermostat
8. Rear wall
9. Additional compartment
10. Upper Hd
11. Guide
12. Aperture
13. Additional compartment thermostat
14. Adjusting knob
15. Outlet opening
[009] The cooling device (1) comprises a cooling compartment (2) wherein foods and beverages are preserved, a freezing compartment (3) which is used to preserve the foods frozen, a compressor (4) whereby the refrigeration cycle is accomplished, a cooling compartment evaporator (5) ensuring that the internal volume of the cooling compartment (2) is cooled by absorbing thermal energy, a freezing compartment evaporator (6) connected to the cooling compartment evaporator (5), a cooling compartment thermostat (7) whereby the compressor (4) is operated and stopped by detecting the temperature inside the cooling compartment (2), a cooling compartment (2) rear wall (8) where preferably the cooling compartment evaporator (5) is positioned, an adjusting knob (14) which enables the user to select the operating condition that corresponds to different cooling amounts and that can vary between the highest and lowest values of the temperature of the cooling compartment (2) and, whereby the activation and / or deactivation temperatures of the compressor (4) are determined accordingly and, an additional compartment (9) which is located inside the cooling compartment (2) wherein its temperature oscillates within a narrower and lower range compared to that of the cooling compartment (2).
[010] The additional compartment (9) is preferably in the form of a drawer and is positioned into the cooling compartment (2) such that its rear side leans against the rear wall (8) and, is pulled out if it is to be used. [Oi l] The cooling device (1) comprises an upper lid (10) which partially covers the upper portion of the additional compartment (9), an aperture (12) between the upper lid (10) and the rear wall (8) whereby air can enter the additional compartment (9), a guide (11) which is positioned at the edge of the aperture (12), extending approximately parallel to the rear wall (8) and whereby air is routed to the aperture (12), an additional compartment thermostat (13) whereby the compressor (4) is operated and stopped by detecting the temperature inside the additional compartment (9) and, an outlet opening (15) which ensures the outflow of air from the additional compartment (9).
[012] The guide (11) is positioned on the upper lid (10). The guide (11) and the rear wall
(8) form a chimney on the aperture (12) and, by means of that structure it is achieved that air that is cooled by contacting with the rear wall (8) sinks towards the aperture (12) without diffusing to the interior of the cooling compartment (2) and enters the inside of the additional compartment (9).
[013] In another embodiment of the present invention, there is utilized a guide (11), man¬ ufactured as a separate piece, which is positioned on the aperture (12) so as to create a chimney effect and, whereby it is achieved that air that is cooled by contacting with the rear wall (8) sinks towards the aperture (12) without diffusing to the interior of the cooling compartment (2) and enters the inside of the additional compartment (9), by - means of the afore-mentioned structure.
[014] In the control method of the cooling device (1), it is accomplished to control the temperatures of the cooling and freezing compartments (2 and 3) by activating and / or deactivating the compressor (4). To be able to describe the control method of the cooling device (1) in accordance with the present invention, following symbols are utilized :
[015] Tl: is the temperature where the additional compartment thermostat (13) activates the compressor (4),
[016] T2: is the temperature where the additional compartment thermostat (13) de¬ activates the compressor (4),
[017] T3: is the safety temperature which is lower than T2 and where the additional compartment thermostat (13) deactivates the compressor (4) in order to prevent the additional compartment (9) from being excessively cooled even when the cooling compartment (2) needs to be cooled further.
[018] T4: is the temperature where the cooling compartment thermostat (7) activates the compressor (4), as the adjusting knob (14) is at the coldest position for the cooling compartment (2) determined by the manufacturer.
[019] T5: is the temperature where the cooling compartment thermostat (7) activates the compressor (4), as the adjusting knob (14) is at a position determined by the user.
[020] T6: is the temperature where the cooling compartment thermostat (7) deactivates the compressor (4), as the adjusting knob (14) is at a position determined by the user.
[021] T7: is the temperature where the cooling compartment thermostat (7) deactivates the compressor (4), as the adjusting knob (14) is at the hottest position for the cooling compartment (2) determined by the manufacturer.
[022] T8: is the safety temperature which is lower than T7 and where the cooling compartment thermostat (7) deactivates the compressor (4) in order to prevent the cooling compartment (2) from being excessively cooled even when the additional compartment (9) needs to be cooled further.
[023] T9: is the temperature where the cooling compartment thermostat (7) activates the compressor (4), as the adjusting knob (14) is at the hottest position for the cooling compartment (2) determined by the manufacturer.
[024] Tec: is the instantaneous temperature of the cooling compartment (2) detected by the cooling compartment thermostat (7).
[025] Tac: is the instantaneous temperature of the additional compartment (9) detected by the additional compartment thermostat (13).
[026] The operating and stopping moments of the compressor (4) are determined by the cooling compartment thermostat (7) and the additional compartment thermostat (13). The cooling compartment thermostat (7) incorporates a safety temperature (T8) which is a bit lower than the lowest temperature determined through the adjusting knob (14) and where the compressor (4) is deactivated in order to prevent foods inside the cooling compartment (2) from being frozen even when the additional compartment (9) needs to be cooled further. Similarly, the additional compartment thermostat (13) in¬ corporates a safety temperature (T3) which is a bit lower than the deactivation temperature (T2) of the compressor (4) and where the compressor (4) is deactivated in order to prevent the temperature of the additional compartment (9) from being out of the stated temperature range even when the cooling compartment (2) needs to be cooled further.
[027] The activation and / or deactivation moments of the compressor (4) are determined either according to the level selected by the user for the cooling compartment (2) if the temperature of the additional compartment (9) is within the limits predetermined by the manufacturer or, according to the coldest adjustment level for the cooling compartment (2) if the temperature of the additional compartment (9) rises excessively or, according to the hottest adjustment level for the cooling compartment (2) if the temperature of the additional compartment (9) decreases excessively.
[028] The cooling device (1) is controlled as follows (Figure 2):
- Compare the instantaneous temperature (Tac) of the additional compartment
(9) detected by the additional compartment thermostat (13) with the temperature (Tl) where the additional compartment thermostat (13) activates the compressor (4) (101),
If the temperature (Tac) of the additional compartment (9) is larger than the activation temperature (Tl) of the compressor, compare the temperature (Tec) of the cooling compartment (2) with the deactivation temperature (T8) of the compressor (4) (102),
If the temperature (Tec) of the cooling compartment (2) is smaller than the de¬ activation temperature (T8) of the compressor (4), stop the compressor (4) (103),
Compare the temperature (Tec) of the cooling compartment (2) with the activation temperature (T4) of the compressor (4) (117), If the temperature (Tec) of the cooling compartment (2) is larger than the activation temperature (T4) of the compressor (4), operate the compressor (4) (118),
Go back to the step (101) where the temperature (Tac) of the additional compartment (9) is compared with the temperature (Tl) where the additional compartment thermostat (13) activates the compressor (4), If the temperature (Tec) of the cooling compartment (2) is smaller than the activation temperature (T4) of the compressor (4), go back to the step (103) where the compressor (4) is stopped,
If the temperature (Tec) of the cooling compartment (2) is larger than the de¬ activation temperature (T8) of the compressor (4), operate the compressor (4) (104),
Compare the temperature (Tac) of the additional compartment (9) with the temperature (T2) where the additional compartment thermostat (13) de¬ activates the compressor (4) (105),
If the temperature (Tac) of the additional compartment (9) is smaller than the deactivation temperature (T2) of the compressor (4), stop the compressor (4) (106),
If the temperature (Tac) of the additional compartment (9) is larger than the deactivation temperature (T2) of the compressor (4), go back to the step (102) where the temperature (Tec) of the cooling compartment (2) is compared with the deactivation temperature (T8) of the compressor (4), If the temperature (Tac) of the additional compartment (9) is smaller than the activation temperature (Tl) of the compressor (4), when they are compared (101), compare the temperature (Tac) of the additional compartment (9) with the safety temperature (T3) where the additional compartment thermostat (13) deactivates the compressor (4) (107), If the temperature (Tac) of the additional compartment (9) is smaller than the safety deactivation temperature (T3) of the compressor (4), compare the temperature (Tec) of the cooling compartment (2) with the activation temperature (T9) of the compressor (4) as the adjusting knob (14) is at the hottest position (108),
If the temperature (Tec) of the cooling compartment (2) is smaller than the activation temperature (T9) of the compressor (4), stop the compressor (4) (109),
If the temperature (Tec) of the cooling compartment (2) is larger than the activation temperature (T9) of the compressor (4), operate the compressor (4) (HO),
Compare the temperature (Tec) of the cooling compartment (2) with the de¬ activation temperature (T7) of the compressor (4) as the adjusting knob (14) is at the hottest position (111),
If the temperature (Tec) of the cooling compartment (2) is smaller than the de¬ activation temperature (T7) of the compressor (4), stop the compressor (4) (112),
If the temperature (Tec) of the cooling compartment (2) is larger than the de¬ activation temperature (T7) of the compressor (4), go back to the step (1 10) where the compressor (4) is operated,
If the temperature (Tac) of the additional compartment (9) is larger than the safety temperature (T3) where the additional compartment thermostat (13) de¬ activates the compressor (4), when they are compared (107), compare the temperature (Tec) of the cooling compartment (2) with the temperature (T5) where the cooling compartment thermostat (7) activates the compressor (4) as the adjusting knob (14) is at a position selected by the user (113), If the temperature (Tec) of the cooling compartment (2) is larger than the activation temperature (T5) of the compressor (4), operate the compressor (4) (114),
After the compressor (4) is operated or if the temperature (Tec) of the cooling compartment (2) is smaller than the activation temperature (T5) of the compressor (4), compare the temperature (Tec) of the cooling compartment (2) with the temperature (T6) where the cooling compartment thermostat (7) deactivates the compressor (4) as the adjusting knob (14) is at a position selected by the user (115),
If the temperature (Tec) of the cooling compartment (2) is smaller than the de¬ activation temperature (T6) of the compressor (4), stop the compressor (4) (116), If the temperature (Tec) of the cooling compartment (2) is larger than the de- activation temperature (T6) of the compressor (4), go back to the step (101) where the temperature (Tac) of the additional compartment (9) is compared with the temperature (Tl) where the additional compartment thermostat (13) activates the compressor (4). [029] In cooling devices (1) where cooling process is not performed by forced air circulation, it is achieved that air that is cooled by contacting the rear wall (8), where the cooling compartment evaporator (5) is positioned, thanks to the guide (11) and the rear wall (8), enters the interior of the additional compartment (9) through the aperture (12) without diffusing to the inside of the cooling compartment (2) and, that the temperature of the additional compartment (9) oscillates within a narrower and lower range than that of the cooling compartment (2). [030] In another embodiment of the present invention, the guide (11) is positioned on the rear wall (8).
[031] Thanks to determining the operating and stopping moments of the compressor (4) by means of both the cooling compartment thermostat (7) and the additional compartment thermostat (13), it is achieved that foods inside the cooling compartment (2) are prevented from being frozen or excessively heated, and at the same time that the additional compartment (9) remains within the temperature range stated by the manufacturer.

Claims

Claims
[001] A cooling device (1) comprising; a cooling compartment (2) wherein foods and beverages are preserved, a compressor (4) whereby the refrigeration cycle is ac¬ complished, a cooling compartment evaporator (5) ensuring that the internal volume of the cooling compartment (2) is cooled by absorbing thermal energy, a cooling compartment (2) rear wall (8) where the cooling compartment evaporator (5) is positioned and characterized by an additional compartment (9) which is located inside the cooling compartment (2) wherein its temperature oscillates within a narrower and lower range compared to that of the cooling compartment (2), an upper lid (10) which partially covers the upper portion of the additional compartment (9), an aperture (12) between the upper Hd (10) and the rear wall (8) whereby air can enter the additional compartment (9) and, a guide (11) whereby air is routed to the aperture (12).
[002] A cooling device (1) as described in Claim 1, characterized by the guide (11) which, together with the rear wall (8), forms a chimney on the aperture (12) and, wherein, by means of that structure, it is achieved that air that is cooled by contacting with the rear wall (8) sinks towards the aperture (12) without diffusing to the interior of the cooling compartment (2) and enters the inside of the additional compartment (9).
[003] A cooling device (1) as described in Claims 1 or 2, characterized by the guide
(11) on the upper lid (10) which (11) is positioned at the edge of the aperture
(12) and extends approximately parallel to the rear wall (8).
[004] A cooling device (1) as described in Claim 1, characterized by the guide (11) which is manufactured as a separate piece and is positioned on the aperture (12) so as to create a chimney effect.
[005] A cooling device (1) as described in any of the above Claims, characterized by a cooling compartment thermostat (7) whereby the compressor (4) is operated and stopped by detecting the temperature inside the cooling compartment (2), an adjusting knob (14) which enables the user to select the operating condition that corresponds to different cooling amounts and that can vary between the highest and lowest values of the temperature of the cooling compartment (2) and, whereby the activation and / or deactivation temperatures of the compressor (4) are determined accordingly and an additional compartment thermostat (13) whereby the compressor (4) is operated and stopped by detecting the temperature inside the additional compartment (9).
[006] A cooling device (1) as described in Claim 5, characterized by the cooling compartment thermostat (7) incorporating a safety temperature (T8) which is a bit lower than the lowest temperature determined through the adjusting knob (14) and where the compressor (4) is deactivated in order to prevent foods inside the cooling compartment (2) from being frozen even when the additional compartment (9) needs to be cooled further.
[007] A cooling device (1) as described in Claim 5, characterized by the additional compartment thermostat (13) incorporating a safety temperature (T3) which is a bit lower than the deactivation temperature (T2) of the compressor (4) and where the compressor (4) is deactivated in order to prevent the temperature of the additional compartment (9) from being out of the stated temperature range even when the cooling compartment (2) needs to be cooled further.
[008] A cooling device (1) as described in Claim 1, characterized by the compressor
(4) the activation and / or deactivation moments of which are determined either according to the level selected by the user for the cooling compartment (2) if the temperature of the additional compartment (9) is within the limits predetermined by the manufacturer or according to the coldest adjustment level for the cooling compartment (2) if the temperature of the additional compartment (9) rises ex¬ cessively or according to the hottest adjustment level for the cooling compartmen t (2) if the temperature of the additional compartment (9) decreases excessively.
[009] A control method for a cooling device (1) as described in Claims 1 - 8, in¬ corporating following steps; compare the instantaneous temperature (Tac) of the additional compartment (9) detected by the additional compartment thermostat (13) with the temperature (Tl) where the additional compartment thermostat (13) activates the compressor (4) (101), if the temperature (Tac) of the additional compartment (9) is larger than the activation temperature (Tl) of the compressor, compare the temperature (Tec) of the cooling compartment (2) with the de¬ activation temperature (T8) of the compressor (4) (102), if the temperature (Tec) of the cooling compartment (2) is smaller than the deactivation temperature (T8) of the compressor (4), stop the compressor (4) (103), compare the temperature (Tec) of the cooling compartment (2) with the activation temperature (T4) of the compressor (4) (117), if the temperature (Tec) of the cooling compartment (2) is larger than the activation temperature (T4) of the compressor (4), operate the compressor (4) (118), go back to the step (101) where the temperature (Tac) of the additional compartment (9) is compared with the temperature (Tl) where the additional compartment thermostat (13) activates the compressor (4), if the temperature (Tec) of the cooling compartment (2) is smaller than the activation temperature (T4) of the compressor (4), go back to the step (103) where the compressor (4) is stopped, if the temperature (Tec) of the cooling compartment (2) is larger than the deactivation temperature (T8) of the compressor (4), operate the compressor (4) (104), compare the temperature (Tac) of the additional compartment (9) with the temperature (T2) where the additional compartment thermostat (13) deactivates the compressor (4) (105), if the temperature (Tac) of the additional compartment (9) is smaller than the deactivation temperature (T2) of the compressor (4), stop the compressor (4) (106), if the temperature (Tac) of the additional compartment (9) is larger than the deactivation temperature (T2) of the compressor (4), go back to the step (102) where the temperature (Tec) of the cooling compartment (2) is compared with the deactivation temperature (T8) of the compressor (4), if the temperature (Tac) of the additional compartment (9) is smaller than the activation temperature (Tl) of the compressor (4), when they are compared (101), compare the temperature (Tac) of the additional compartment (9) with the safety temperature (T3) where the additional compartment thermostat (13) deactivates the compressor (4) (107), if the temperature (Tac) of the additional compartment (9) is smaller than the safety deactivation temperature (T3) of the compressor (4), compare the temperature (Tec) of the cooling compartment (2) with the activation temperature (T9) of the compressor (4) as the adjusting knob (14) is at the hottest position (108), if the temperature (Tec) of the cooling compartment (2) is smaller than the activation temperature (T9) of the compressor (4), stop the compressor (4) (109), if the temperature (Tec) of the cooling compartment (2) is larger than the activation temperature (T9) of the compressor (4), operate the compressor (4) (110), compare the temperature (Tec) of the cooling compartment (2) with the deactivation temperature (T7) of the compressor (4) as the adjusting knob (14) is at the hottest position (111), if the temperature (Tec) of the cooling compartment (2) is smaller than the deactivation temperature (T7) of the compressor (4), stop the compressor (4) (112), if the temperature (Tec) of the cooling compartment (2) is larger than the deactivation temperature (T7) of the compressor (4), go back to the step (110) where the compressor (4) is operated, if the temperature (Tac) of the additional compartment (9) is larger than the safety temperature (T3) where the additional compartment thermostat (13) deactivates the compressor (4), when they are compared (107), compare the temperature (Tec) of the cooling compartment (2) with the temperature (T5) where the cooling compartment thermostat (7) activates the compressor (4) as the adjusting knob (14) is at a position selected by the user (113), if the temperature (Tec) of the cooling compartment (2) is larger than the activation temperature (T5) of the compressor (4), operate the compressor (4) (114), after the compressor (4) is operated or if the temperature (Tec) of the cooling compartment (2) is smaller than the activation temperature (T5) of the compressor (4), compare the temperature (Tec) of the cooling compartment (2) with the temperature (T6) where the cooling compartment thermostat (7) deactivates the compressor (4) as the adjusting knob (14) is at a position selected by the user (1 15), if the temperature (Tec) of the cooling compartment (2) is smaller than the deactivation temperature (T6) of the compressor (4), stop the compressor (4) (116), if the temperature (Tec) of the cooling compartment (2) is larger than the deactivation temperature (T6) of the compressor (4), go back to the step (101) where the temperature (Tac) of the additional compartment (9) is compared with the temperature (Tl) where the additional compartment thermostat (13) activates the compressor (4).
EP05758386A 2004-07-23 2005-07-15 A cooling device and a control method thereof Withdrawn EP1771693A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR200401809 2004-07-23
PCT/IB2005/052352 WO2006011099A1 (en) 2004-07-23 2005-07-15 A cooling device and a control method thereof

Publications (1)

Publication Number Publication Date
EP1771693A1 true EP1771693A1 (en) 2007-04-11

Family

ID=35079177

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05758386A Withdrawn EP1771693A1 (en) 2004-07-23 2005-07-15 A cooling device and a control method thereof

Country Status (4)

Country Link
EP (1) EP1771693A1 (en)
CN (1) CN100538225C (en)
TR (1) TR200700302T1 (en)
WO (1) WO2006011099A1 (en)

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US12339059B2 (en) 2020-04-23 2025-06-24 Electrolux Consumer Products, Inc. Temperature-controlled drawer in a refrigerator
US11578907B2 (en) 2020-04-23 2023-02-14 Electrolux Home Products, Inc. Temperature-controlled drawer in a refrigerator

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Also Published As

Publication number Publication date
CN101018995A (en) 2007-08-15
TR200700302T1 (en) 2007-04-24
CN100538225C (en) 2009-09-09
WO2006011099A1 (en) 2006-02-02

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