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
  • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
  • F25D21/04—Preventing the formation of frost or condensate
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
  • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
  • 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
• • 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
  • F25D2700/10—Sensors measuring the temperature of the evaporator
• • 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

• the present invention relates to a method and a device for controlling a freezing phase in a single-control combined refrigeration appliance, and to a related refrigeration appliance.
• a single-control combined refrigeration appliance is provided with at least one refrigerator compartment (also commonly called “fresh" compartment, with a normal internal temperature of approx. + 4°) and at least one freezer compartment for freezing food and preserving frozen food; it is also provided with a single refrigeration circuit with a single compressor; it has a temperature sensor detecting only the temperature in the refrigerator compartment only, and not that in the freezer compartment, and an evaporator temperature sensor, which is used for controlling the defrosting operation; it is provided with a fan adapted to blow cold air into the refrigerator compartment from the freezer compartment when the temperature in the refrigerator compartment exceeds a threshold. It is to be understood, therefore, that the field of application of the invention refers to such a refrigeration appliance.
• a method for controlling such a single-control combined refrigerator wherein activation of the compressor occurs following a cold request generated by the refrigerator compartment when the temperature in the refrigerator compartment exceeds a threshold.
• the temperature in the freezer compartment is not detected, and therefore it does not affect the compressor on/off control.
• a drawback of this method is that it is not effective in executing the process of freezing foods or other substances that are inserted into the freezer compartment at room temperature. Since there is no direct control of the temperature in the freezer compartment, this process cannot be optimized, resulting in a time-consuming, energy- consuming or incomplete freezing process.
• the invention provides, in single-control combined refrigerators, a cycle called "super freezer", which speeds up the cooling of foods inserted in the freezer compartment; said cycle can be activated by the user via a user interface.
• the invention relates to a method for controlling a freezing phase in a refrigeration appliance of the single- control combined type, said refrigeration appliance comprising at least one refrigerator compartment, at least one freezer compartment, a single compressor, a temperature sensor detecting only the temperature in the refrigerator compartment, a temperature sensor detecting the temperature of the evaporator of the refrigeration circuit, a fan, the method being characterized in that it comprises the steps of:
• Figure 1 shows a flow chart of the method of the invention, according to a first variant thereof
• Figure 2 shows a flow chart of the method of the invention, according to a second variant thereof
• Figure 3 shows a flow chart of the method of the invention, according to a third variant thereof.
• the method for controlling the freezing phase in a single-control refrigeration appliance as defined above is such that it creates a freezing cycle called "super-freezer", aimed at speeding up the process of lowering the temperature of the food placed in the freezer compartment, e.g. from room temperature to a target temperature of -18 °C.
• the "super-freezer" freezing cycle has a predetermined duration, e.g. 24 h.
• the cycle checks that said duration is not exceeded (t>24h) ; if it is, the cycle will end (End SF) automatically. Otherwise, the cycle will continue.
• the state of the fan normally depends on the request for a temperature reduction in the refrigerator compartment .
• the cycle checks again that its duration has not been exceeded (t>24h) , in which case the cycle will end (End SF) automatically. Otherwise, the cycle will continue.
• T fg T3
• One example of embodiment of the device of the invention comprises a circuit that implements the steps of the method, which circuit is inserted into a single-control combined refrigeration appliance comprising the above- defined elements.
• Said circuit may comprise per se known elements as described above, and also a computer program comprising coding means for implementing one or more steps of the method when said program is executed by a computer. It is therefore understood that the protection scope extends to said computer program as well as to computer-readable means that comprise a recorded message, said computer-readable means comprising program coding means for implementing one or more steps of the method when said program is executed by a computer.

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)
• Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=50239817

Family Applications (1)

Country Status (4)

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Family Cites Families (34)

• 2013
  • 2013-12-31 IT IT001093A patent/ITTO20131093A1/it unknown
• 2014
  • 2014-12-18 US US15/109,021 patent/US20160327329A1/en not_active Abandoned
  • 2014-12-18 EP EP14830702.8A patent/EP3090221A1/en not_active Withdrawn
  • 2014-12-18 WO PCT/IB2014/067055 patent/WO2015101884A1/en not_active Ceased

Non-Patent Citations (1)

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