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WO2016177743A1 - Dispositif de refroidissement ayant une performance de réfrigération améliorée - Google Patents

Dispositif de refroidissement ayant une performance de réfrigération améliorée Download PDF

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Publication number
WO2016177743A1
WO2016177743A1 PCT/EP2016/059915 EP2016059915W WO2016177743A1 WO 2016177743 A1 WO2016177743 A1 WO 2016177743A1 EP 2016059915 W EP2016059915 W EP 2016059915W WO 2016177743 A1 WO2016177743 A1 WO 2016177743A1
Authority
WO
WIPO (PCT)
Prior art keywords
cooling device
freezing compartment
lid
disposed
compartment
Prior art date
Application number
PCT/EP2016/059915
Other languages
English (en)
Inventor
Tolga APAYDIN
Vasi Kadir Ertis
Tolga Nurettin AYNUR
Husnu Kerpicci
Volkan GUNEY
Original Assignee
Arcelik Anonim Sirketi
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 Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Publication of WO2016177743A1 publication Critical patent/WO2016177743A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/025—Secondary closures
    • 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
    • F25D23/00—General constructional features
    • F25D23/08—Parts formed wholly or mainly of plastics materials
    • F25D23/082—Strips
    • F25D23/087—Sealing strips

Definitions

  • the present invention relates to a cooling device the refrigeration performance of which is improved.
  • Cooling devices comprise a fresh food compartment wherein foods and beverages are stored and a freezing compartment that enables foods to be stored by being frozen
  • the freezing compartment and the fresh food compartment are separated by means of a lid closing the freezing compartment.
  • the compartments are refrigerated by means of the refrigeration cycle composed of the circulation of the refrigerant fluid through the units composed of the compressor, the condenser, the capillary tube and the evaporator. Since the refrigeration cycle stops during a power failure, the temperatures of the compartments increase and this increase in temperature causes the foods to spoil by adversely affecting the storage lives thereof.
  • a cooling device comprising a thermosyphon that enables the temperature of the refrigeration compartment to be decreased by carrying the refrigerant fluid in the freezing compartment to the refrigeration compartment during a power failure.
  • the aim of the present invention is the realization of a cooling device wherein the storage lives of the foods are prolonged by controlling the heat transfer realized between the two compartment at different temperatures during a power failure.
  • the cooling device realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a body; a fresh food compartment that is disposed in the body and wherein the foodstuffs are placed to be cooled; a freezing compartment kept at lower temperatures than the fresh food compartment, wherein foodstuffs are placed to be frozen, and a lid that enables the freezing compartment to be closed so as to prevent the air flow between the fresh food compartment and the freezing compartment.
  • the lid prevents the hot air from entering the freezing compartment by covering the open front surface of the freezing compartment.
  • the cooling device of the present invention comprises an electromagnet that is placed onto the body so as to be located at the freezing compartment side of the body and that is energized by the electric current taken from the mains and a metal plate that is disposed on the lid so as to be opposite to the electromagnet when the lid is closed.
  • the electromagnet shows magnetic properties when an electric current flows therethrough.
  • the metal plate is positioned on the lid so as to be in the electromagnetic field of the electromagnet.
  • the electromagnet loses its magnetic properties.
  • the lid opens a little. Air passes through this opening from the fresh food compartment to the freezing compartment.
  • the air flow to the fresh food compartment from the freezing compartment which has a lower temperature than the fresh food compartment, slows down the increase of the fresh food compartment temperature during the power failure.
  • the heat transfer between the fresh food compartment and the freezing compartment is realized by natural convection until the temperature balance between the compartments is established.
  • the cooling device comprises a PCM container that is disposed in the freezing compartment and that comprises phase change material.
  • the phase changing material is obtained by combining one or more than one eutectic material and freezes at a certain temperature depending on its chemical characteristic during the operation of the cooling device.
  • the freezing compartment wherein the foodstuffs to be frozen are placed is kept at about -18°C. Therefore, a phase change material that is solid at ⁇ 15°C or at temperatures below ⁇ 15°C is placed into the PCM container.
  • the phase change material draws heat from the environment in case of a power failure and enables the temperature increase in both the freezing compartment and the fresh food compartment to be slowed down.
  • foodstuffs in the freezing compartment and the fresh food compartment can be stored for a longer period of time without getting spoiled.
  • the PCM container is placed into the freezing compartment so as to contact with the evaporator.
  • the cooling device comprises a biasing means with one end connected to the body and the other end extending towards the lid.
  • the free end of the biasing means bears against the lid during the closing of the lid and is squeezed between the body and the lid when the lid is completely closed.
  • the pressure the biasing means exerts on the lid is in the opposite direction of the pressure the electromagnet exerts on the lid.
  • the pressure exerted by the electromagnet overcomes the pressure exerted by the biasing means and keeps the lid closed.
  • the biasing means preferably a spring, pushes the lid and opens the same.
  • the cooling device comprises a battery that is disposed on the body and a control unit that enables the electromagnet to be energized with the electric current received from the battery.
  • the electromagnet comprises electrical connections connected to both the mains and the battery.
  • the control unit activates the battery and enables the battery to deliver the energy taken from the mains and stored by the same to the electromagnet.
  • the electromagnet does not lose its electromagnetic properties and the lid can be kept closed. Consequently, the cold air leakage from the freezing compartment to the outer environment is prevented.
  • the control unit deactivates the battery and enables the electromagnet to be energized with the electric current received from the mains.
  • the cooling device comprises a temperature sensor that is disposed in the freezing compartment and the control unit that provides the controlling of the battery according to the data received from the temperature sensor.
  • the lid In case of a power failure, the lid is kept open and the air is delivered from the freezing compartment to the fresh food compartment until the freezing compartment temperature value detected by the temperature sensor reaches the freezing compartment limit value predetermined by the producer and whereat the foodstuffs in the freezing compartment starts to thaw.
  • the control unit activates the battery and enables the electromagnet to close the lid and the foodstuffs in the freezing compartment are prevented from thawing.
  • the cooling device comprises a button that is disposed on the body and the control unit that activates/deactivates the battery according to the data received from the button.
  • the foodstuffs which are required to be stored for a longer time without getting spoiled, vary according to the user needs.
  • the button in case of a power failure the user can select the compartment the foodstuffs in which he/she desires to be preserved for a longer time.
  • the control unit prevents the delivery of electric current from the battery to the electromagnet and enables the lid to be kept open during the power failure and thus, enables the foodstuffs in the fresh food compartment to be stored for a longer time without getting spoiled.
  • the control unit provides the delivery of electric current from the battery to the electromagnet and enables the lid to be kept closed during the power failure and thus, enables the foodstuffs in the freezing compartment to be stored without thawing for a longer time.
  • the cooling device comprises a fan that is disposed in the freezing compartment and that is energized by the energy received from the battery.
  • the fan energized by the battery enables the air from the freezing compartment to reach all the regions of the fresh food compartment.
  • the fresh food compartment is enabled to be effectively cooled.
  • the cooling device comprises a frame that surrounds the freezing compartment and that is disposed on the body so as to contact with the lid when the lid is closed.
  • the cooling device comprises a handle that is disposed on the lid and an arm that is disposed on the handle and that enables the electric current delivered to the electromagnet to be interrupted when triggered.
  • the electric current being delivered to the electromagnet is interrupted and the pressure exerted by the electromagnet so as to keep the lid closed is terminated and the user is enabled to easily open the lid.
  • control unit enables the user to be informed by visual and/or audio warnings according to the data received from the temperature sensor.
  • the control unit enables the user to be warned by visual and/or audio warnings.
  • a cooling device is realized wherein the foodstuffs stored in the compartment are enabled to be stored for a longer time without getting spoiled by means of the air flow controllably realized between the freezing compartment and the fresh food compartment in case of a power failure.
  • Figure 1 – is the perspective view of a cooling device.
  • Figure 2 – is the sideways cross-sectional view of the cooling device in an embodiment of the present invention.
  • Figure 3 – is the partial perspective view of the freezing compartment in an embodiment of the present invention.
  • Figure 4 – is the partial perspective view of the freezing compartment in an embodiment of the present invention.
  • Figure 5 — is the partial perspective view of the lid in an embodiment of the present invention.
  • the cooling device (1) comprises a body (2); a fresh food compartment (3) that is disposed in the body (2) and wherein the foodstuffs are placed to be cooled; a freezing compartment (4) kept at lower temperatures than the fresh food compartment (3), wherein foodstuffs are placed to be frozen; a door (5) providing access to the fresh food compartment (3) and the freezing compartment (4), and a lid (6) that enables the freezing compartment (4) to be closed so as to prevent the air flow between the fresh food compartment (3) and the freezing compartment (4) ( Figure 1 and Figure 2).
  • the cooling device (1) of the present invention comprises an electromagnet (8) that is placed onto the body (2) so as to be located at the freezing compartment (4) side of the body (2) and that is energized by the electric current taken from the mains and a metal plate (9) that is disposed on the lid (6) so as to be opposite to the electromagnet (8) when the lid (6) is closed.
  • the electromagnet (8) is energized with the electric current received from the mains and shows electromagnetic properties, thus enabling the lid (6) to be kept closed with the attraction force the electromagnet (8) exerts on the metal plate (9) on the lid (6).
  • the cooling device (1) the air flow between the fresh food compartment (3) and the freezing compartment (4) is prevented and the freezing compartment (4) is enabled to be kept at a lower temperature than the fresh food compartment (3).
  • the electric current delivered from the mains to the electromagnet (8) is interrupted, thus the electromagnet (8) loses its magnetic properties. Since the attraction force exerted by the electromagnet (8) onto the metal plate (9) is terminated, the lid (6) opens and enables the air to flow between the fresh food compartment (3) and the freezing compartment (4).
  • the increase in the temperature of the fresh food compartment (3) is slowed down while the cooling device (1) is not operated due to a power failure.
  • the foodstuffs in the fresh food compartment (3) are stored for a longer time without getting spoiled ( Figure 4 and Figure 5).
  • the cooling device (1) comprises a PCM container (7) that is disposed in the freezing compartment (4) and that comprises phase change material.
  • the phase change material freezes at a certain temperature according to its chemical characteristics during the operation of the cooling device (1) and draws heat from the freezing compartment (4) while the cooling device (1) is not operated due to a power failure and enables the environment to be kept at a lower temperature than the case no phase change material is used.
  • increase in the temperatures of both the freezing compartment (4) and the fresh food compartment (3) is slowed down ( Figure 2).
  • the cooling device (1) comprises a biasing means (10) with one end connected to the body (2) and the other end extending towards the lid (6). While the lid (6) is closed, the biasing means (10) is squeezed between the body (2) and the lid (6). When the electromagnet (8) loses its electromagnetic properties due to a power failure, the compressed biasing means (10) transfers the stored energy to the lid (6) and enables the lid (6) to be opened so as to allow a sufficient air flow between the fresh food compartment (3) and the freezing compartment (4) ( Figure 3).
  • the cooling device (1) comprises a battery (11) that is disposed on the body (2) and a control unit (12) that enables the electromagnet (8) to be energized with the electric current received from the battery (11).
  • the electric current delivered from the mains to the electromagnet (8) is interrupted and the control unit (12) activates the battery (11) and enables the electric current to be delivered from the battery (11) to the electromagnet (8).
  • the electromagnet (8) again shows magnetic properties by being energized with the electric current received from the battery (11).
  • the lid (6) is closed again.
  • the cooling device (1) comprises a temperature sensor (13) that is disposed in the freezing compartment (4) and the control unit (12) that provides the controlling of the battery (11) according to the data received from the temperature sensor (13).
  • the control unit (12) monitors the freezing compartment (4) temperature (T FRZ ) detected by the temperature sensor (13).
  • the control unit (12) activates the battery (11) and enables the electric current to be delivered from the battery (11) to the electromagnet (8) if the freezing compartment (4) temperature value (T FRZ ) detected by the temperature sensor (13) reaches the freezing compartment (4) limit value (T FRZlim ) predetermined by the producer and whereat the foodstuffs in the freezing compartment (4) starts to thaw.
  • T FRZ temperature value
  • T FRZlim freezing compartment (4) limit value
  • the cooling device (1) comprises a button (14) that is disposed on the body (2) and the control unit (12) that activates/deactivates the battery (11) according to the data received from the button (14).
  • the lid (6) is opened and thus the foodstuffs in the fresh food compartment (3) are enabled to be stored for a longer time without getting spoiled.
  • the foodstuffs in the freezing compartment (4) can be stored for a longer period of time without thawing.
  • the control unit (12) prevents the delivery of electric current from the battery (11) to the electromagnet (8) and enables the lid (6) to be kept open during the power failure and thus, enables the foodstuffs in the fresh food compartment (3) to be stored for a longer time without getting spoiled.
  • the control unit (12) provides the delivery of electric current from the battery (11) to the electromagnet (8) and enables the lid (6) to be kept closed during the power failure and thus, enables the foodstuffs in the freezing compartment (4) to be stored for a longer time without getting spoiled ( Figure 3 and Figure 4).
  • the cooling device (1) comprises a fan (18) that is disposed in the freezing compartment (4) and that is energized by the energy received from the battery (11).
  • the lid (6) opens in case of a power failure, the air flow between the fresh food compartment (3) and the freezing compartment (4) occurs with natural convection.
  • the temperature distribution in the fresh food compartment (3) is not homogeneous and the regions close to the freezing compartment (4) are at a lower temperature than the regions away from the freezing compartment (4).
  • the fan (18) energized by the battery (11) the cold air blown from the freezing compartment (4) to the fresh food compartment (3) is distributed homogeneously in the fresh food compartment (3) and the formation of regions with different temperatures is prevented.
  • the foodstuffs stored in the fresh food compartment (3) can be stored for a longer time without getting spoiled ( Figure 2).
  • the cooling device (1) comprises a frame (15) that surrounds the freezing compartment (4) and that is disposed on the body (2) so as to contact with the lid (6) when the lid (6) is closed.
  • the electromagnet (8) is disposed on the frame (15) and the cable connections between the electromagnet (8) and the mains and between the electromagnet (8) and the battery (11) are made through the cable channels arranged in the frame (15).
  • the installation of the electromagnet (8) to the cooling device (1) is facilitated ( Figure 3 and Figure 4).
  • the cooling device (1) comprises a handle (16) that is disposed on the lid (6) and an arm (17) that is disposed on the handle (16) and that enables the electric current delivered to the electromagnet (8) to be interrupted when triggered.
  • the electromagnet (8) applies counter force so as to keep the lid (6) closed.
  • the user triggers the arm (17) disposed on the handle (16)
  • the electric current delivered to the electromagnet (8) is interrupted.
  • the user is enabled to easily open the lid (6), user satisfaction is improved ( Figure 4).
  • control unit (12) enables the user to be informed by visual and/or audio warnings according to the data received from the temperature sensor (13).
  • the control unit (12) enables the user to be warned by visual and/or audio warnings.
  • the lid (6) that closes the freezing compartment (4) is opened/closed and the heat transfer between the freezing compartment (4) and the fresh food compartment (3) is controlled.
  • the PCM container (7) that is disposed in the freezing compartment (4) and that contains phase change material enables the foodstuffs in the freezing compartment (4) and the fresh food compartment (3) to be stored for a longer time without getting spoiled during a power failure.

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  • 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

La présente invention concerne un dispositif de refroidissement (1) comportant un corps (2) ; un compartiment pour aliments frais (3) qui est disposé dans le corps (2) et dans lequel les aliments sont placés pour être refroidis ; un compartiment de congélation (4) maintenu à des températures inférieures à celles du compartiment pour aliments frais (3), dans lequel les aliments sont placés pour être congelés ; une porte (5) donnant accès au compartiment pour aliments frais (3) et au compartiment de congélation (4), et un couvercle (6) qui permet de fermer le compartiment de congélation (4) de manière à empêcher le transfert de chaleur entre le compartiment pour aliments frais (3) et le compartiment de congélation (4).
PCT/EP2016/059915 2015-05-07 2016-05-03 Dispositif de refroidissement ayant une performance de réfrigération améliorée WO2016177743A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201505510 2015-05-07
TRA2015/05510 2015-05-07

Publications (1)

Publication Number Publication Date
WO2016177743A1 true WO2016177743A1 (fr) 2016-11-10

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ID=55910264

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Application Number Title Priority Date Filing Date
PCT/EP2016/059915 WO2016177743A1 (fr) 2015-05-07 2016-05-03 Dispositif de refroidissement ayant une performance de réfrigération améliorée

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004211977A (ja) * 2003-01-06 2004-07-29 Sanyo Electric Co Ltd 内扉付き貯蔵庫
US20060260348A1 (en) * 2005-05-18 2006-11-23 Maytag Corporation Refrigerator ice compartment latch
WO2010133502A2 (fr) * 2009-05-22 2010-11-25 Arcelik Anonim Sirketi Appareil électroménager
US20120209763A1 (en) * 2011-02-16 2012-08-16 Zabbatino Joseph Individual locker assembly for refrigerators

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004211977A (ja) * 2003-01-06 2004-07-29 Sanyo Electric Co Ltd 内扉付き貯蔵庫
US20060260348A1 (en) * 2005-05-18 2006-11-23 Maytag Corporation Refrigerator ice compartment latch
WO2010133502A2 (fr) * 2009-05-22 2010-11-25 Arcelik Anonim Sirketi Appareil électroménager
US20120209763A1 (en) * 2011-02-16 2012-08-16 Zabbatino Joseph Individual locker assembly for refrigerators

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