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EP3066404B1 - Réfrigérateur comprenant un compartment de stockage et une lamp ultraviolette - Google Patents

Réfrigérateur comprenant un compartment de stockage et une lamp ultraviolette Download PDF

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Publication number
EP3066404B1
EP3066404B1 EP14790066.6A EP14790066A EP3066404B1 EP 3066404 B1 EP3066404 B1 EP 3066404B1 EP 14790066 A EP14790066 A EP 14790066A EP 3066404 B1 EP3066404 B1 EP 3066404B1
Authority
EP
European Patent Office
Prior art keywords
ultraviolet lamp
food
fan
storage compartment
refrigerator
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.)
Active
Application number
EP14790066.6A
Other languages
German (de)
English (en)
Other versions
EP3066404A1 (fr
Inventor
Aylin MET
Aydin Celik
Feyzi Alper SOYSAL
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 EP3066404A1 publication Critical patent/EP3066404A1/fr
Application granted granted Critical
Publication of EP3066404B1 publication Critical patent/EP3066404B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F25D17/042—Air treating means within refrigerated spaces
    • 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
    • F25D2317/04—Treating air flowing to refrigeration compartments
    • F25D2317/041—Treating air flowing to refrigeration compartments by purification
    • F25D2317/0417—Treating air flowing to refrigeration compartments by purification using an UV-lamp
    • 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
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • F25D2700/123—Sensors measuring the inside temperature more than one sensor measuring the inside temperature in a compartment

Definitions

  • the present invention relates to a refrigerator having a storage compartment that is placed into the fresh food compartment.
  • the use of ultraviolet lamps is known which are located in the fresh food compartment, enabling the storage duration of the foods to be prolonged by decreasing the microbiologic load of air.
  • temperature increases on the foodstuff and/or in the compartment due to the use of ultraviolet lamp.
  • Temperature increase in the storage compartment decreases the sterilization effectiveness of the ultraviolet lamp.
  • the increasing temperature causes sour taste and odor in foods especially in fatty foods like meat due to oxidation and darkening or greening at the surface which creates spoilage perception in the eyes of the user.
  • a refrigerator that comprises an ultraviolet ray sterilizing device situated in the freshness-reservation cabinet, that provides energy saving and enables the foodstuffs to be stored for longer time periods.
  • International Patent Application WO 2013/137838 A2 is directed to a refrigerator in which relative humidity is first raised and then ozone gas is provided to the products.
  • a light source that generates an ultraviolet and blue light assists in the sterilization of the products.
  • United States Patent Application US 2005/178984 discloses an ultraviolet lamp including a temperature sensor and a heating/cooling element both integrated underneath the cover of the ultraviolet lamp in order to maintain the ultraviolet lamp at an optimal temperature.
  • the aim of the present invention is the realization of a refrigerator wherein foodstuffs are stored in a safe manner.
  • the refrigerator realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises at least one fresh food compartment that cools the foods stored therein, a storage compartment placed into the fresh food compartment and wherein the sterilization process is performed, and at least one ultraviolet lamp that is disposed on the storage compartment and that decreases the microbiologic load in the storage compartment.
  • the refrigerator of the present invention comprises a control unit that activates the fan and the valve before or after the ultraviolet lamp in order to decrease temperature increase originating from the ultraviolet lamp. Growth of microorganisms on the foods is prevented by decreasing the temperature in the storage compartment by means of the fan and the valve that is activated before or after the sterilization process.
  • control unit cools the storage compartment before the sterilization process by allowing heat transfer between the fresh food compartment and the storage compartment and by operating the fan if the measured food surface temperature is greater than the food surface temperature limit value predetermined by the producer.
  • the storage compartment is prepared for the sterilization process and the temperature inside the storage compartment is prevented from rising uncontrollably during the sterilization process.
  • control unit enables the food surface to be cooled by opening the valve and activating the fan if the food surface temperature measured after the ultraviolet lamp is activated is greater than a food surface temperature limit value predetermined by the producer.
  • control unit enables the food surface to be cooled by opening the valve and activating the fan if the ultraviolet lamp surface temperature measured is greater than a ultraviolet lamp surface temperature limit value predetermined by the producer during the sterilization process.
  • the temperature on the food surface is prevented from increasing during the sterilization process by cooling the surface of the ultraviolet lamp when it starts operating.
  • control unit enables the food or the vicinity of the ultraviolet lamp to be cooled by changing the speed of the fan depending on temperature values received from the first temperature sensor and the second temperature sensor.
  • the control unit operates the fan at the fan speed suitable for the measured food surface temperature.
  • the temperature increase inside the storage compartment is kept under control.
  • the refrigerator (1) comprises at least one fresh food compartment (2) wherein foods to be cooled are placed, a storage compartment (3) placed into the fresh food compartment (2) and wherein foodstuffs are placed to be stored without spoiling, at least one ultraviolet lamp (4) disposed on the storage compartment (3), providing sterilization, a fan (5) providing circulation of the air inside the storage compartment (3) and at least one valve (6) disposed on the storage compartment (3) and that enables heat transfer to be realized between the fresh food compartment (2) and the storage compartment (3).
  • the refrigerator (1) of the present invention comprises a first temperature sensor (8) that detects the temperature of the food (G), a second temperature sensor (9) that detects the temperature at the surface of the ultraviolet lamp (4), and a control unit (7) that is configured to provide cooling of the food (G) by means of the fan (5) and the valve (6) depending on the data received from the first temperature sensor (8) before and after the ultraviolet lamp (4) is activated and cooling of the vicinity of the ultraviolet lamp (4) depending on the data received from the second temperature sensor (9) when the ultraviolet lamp (4) is activated.
  • the storing and sterilization processes are realized so as to provide optimum storage conditions. Reproduction of microorganisms on the food due to increase in temperature and increase of oxidation are prevented by decreasing the temperature in the storage compartment (3) which increases as a result of operation of the ultraviolet lamp (4).
  • the control unit (7) performs the modes of precooling, ultraviolet cooling and aftercooling so that the foods in the storage compartment (3) are not affected by the heat of the ultraviolet lamp (4).
  • the control unit (7) enables the food (G) inside the storage compartment (3) to be cooled by actuating the fan (5) and the valve (6) depending on the data received from the first temperature sensor (8) before the ultraviolet lamp (4) is activated.
  • the control unit (7) enables the vicinity of the ultraviolet lamp (4) inside the storage compartment (3) to be cooled by actuating the fan (5) and the valve (6) depending on the data received from the second temperature sensor (9) when the ultraviolet lamp (4) is activated.
  • the control unit (7) enables the food (G) to be cooled by actuating the fan (5) and the valve (6) depending on the data received from the first temperature sensor (8) after the ultraviolet lamp (4) is deactivated.
  • the control unit (7) enables the measured food surface temperature (T gm ) to be lowered by opening the valve (6) and activating the fan (5) if the measured food surface temperature (T gm ) is greater than the food surface temperature limit value (T gl ) predetermined by the producer before the ultraviolet lamp (4) is activated.
  • T gl food surface temperature limit value
  • control unit (7) enables the food surface to be cooled by opening the valve (6) and activating the fan (5) if the measured food surface temperature (T gm ) after the ultraviolet lamp (4) is activated is greater than the food surface temperature limit value (T gl ) predetermined by the producer Thus, spoiling of the food is prevented by keeping the measured food surface temperature (T gm ) under control and the sterilization effectiveness inside the storage compartment (3) is increased.
  • control unit (7) enables the food surface to be cooled by opening the valve (6) and activating the fan (5) if the measured ultraviolet lamp (4) surface temperature (T lm ), while the ultraviolet lamp (4) is activated is greater than the ultraviolet lamp (4) surface temperature limit value (T ll ) predetermined by the producer.
  • T lm measured ultraviolet lamp (4) surface temperature
  • T ll ultraviolet lamp (4) surface temperature limit value
  • control unit (7) enables the food (G) or the vicinity of the ultraviolet lamp (4) to be cooled by changing the speed of the fan (5) depending on the temperature values detected from the first temperature sensor (8) and the second temperature sensor (9).
  • control unit (7) operates the fan (5) at a fan (5) speed (v 1 , V2 ,...) recorded in its memory and predetermined by the producer, corresponding to each food surface temperature interval (T ga1 , T ga2 ,...) predetermined by the producer.
  • v 1 , V2 , etc recorded in its memory and predetermined by the producer, corresponding to each food surface temperature interval (T ga1 , T ga2 ,...) predetermined by the producer.
  • the fan (5) is situated on the storage compartment (3).
  • the fan (5) is situated on the fresh food compartment (2).
  • the fan (5) is placed into the storage compartment (3) so as to cool the ultraviolet lamp (4) and the food (G). Cooling effectiveness is increased by means of the fan (5) and the valve (6) that are located close to the lamp (4) or the food (G).
  • the first temperature sensor (8) and the second temperature sensor (9) are infrared sensors.
  • the first temperature sensor (8) is placed at the base of the storage compartment (3) so as to be close to the food (G).
  • the ultraviolet lamp (4) that provides sterilization in the storage compartment (3), the fan (5) and the valve (6) are operated in a controlled manner.
  • the temperature increase originating from ultraviolet radiation is directly proportional with the radiation time and the radiation intensity in the fixed time period. Sterilization effectiveness decreases in low radiation intensities and color change occurs on the food surface that is triggered by the temperature increase in high radiation intensities.
  • the fan (5) and the valve (6) and the ultraviolet lamp (4) operating interdependently, the temperature inside the storage compartment (3) is kept under control while ultraviolet radiation is increased.

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)

Claims (8)

  1. Réfrigérateur (1) comprenant au moins un compartiment d'aliments frais (2) dans lequel des aliments à refroidir sont placés, un compartiment de stockage (3) placé dans le compartiment d'aliments frais (2) et dans lequel des aliments sont placés pour être stockés sans détérioration, au moins une lampe ultraviolette (4) disposée sur le compartiment de stockage (3), assurant la stérilisation, un ventilateur (5) assurant la circulation de l'air à l'intérieur du compartiment de stockage (3), au moins une soupape (6) qui est disposée sur le compartiment de stockage (3) et qui permet de réaliser un transfert de chaleur entre le compartiment à aliments frais (2) et le compartiment de stockage (3), un premier capteur de température (8) qui détecte la température de surface de l'aliment (G), et une unité de commande (7),
    caractérisé par
    un deuxième capteur de température (9) qui détecte la température à la surface de la lampe ultraviolette (4),
    et par l'unité de commande (7) qui est configurée pour assurer le refroidissement de l'aliment (G) au moyen du ventilateur (5) et de la soupape (6) en fonction des données reçues du premier capteur de température (8) avant et après l'activation de la lampe ultraviolette (4) et pour refroidir le voisinage de la lampe ultraviolette (4) selon les données reçues du deuxième capteur de température (9) lorsque la lampe ultraviolette (4) est activée, dans laquelle l'unité de commande (7) est configurée pour permettre le refroidissement de la surface des aliments en ouvrant la soupape (6) et en activant le ventilateur (5)
    - si la température de surface des aliments mesurée (Tgm), avant l'activation de la lampe ultraviolette (4), est supérieure à la valeur limite de température de surface des aliments (Tgl) prédéterminée par le producteur,
    - si la température de surface des aliments mesurée (Tgm) est supérieure à la valeur limite de température de surface des aliments (Tgl) prédéterminée par le producteur après activation de la lampe ultraviolette (4),
    - si la température de surface (Tlm) de la lampe (4) ultraviolette mesurée, lorsque la lampe ultraviolette (4) est activée, est supérieure à la valeur limite de température de surface (Tll) de la lampe ultraviolette (4) prédéterminée par le producteur.
  2. Réfrigérateur (1) selon l'une quelconque des revendications précédentes, caractérisé par l'unité de commande (7) permettant de refroidir l'aliment (G) ou le voisinage de la lampe ultraviolette (4) en modifiant la vitesse du ventilateur (5) en fonction des valeurs de température détectées par le premier capteur de température (8) et le deuxième capteur de température (9).
  3. Réfrigérateur (1) selon l'une quelconque des revendications précédentes, caractérisé par l'unité de commande (7) faisant fonctionner le ventilateur (5) à une vitesse de ventilateur (5) (v1, v2,...) enregistrée dans sa mémoire et prédéterminée par le producteur correspondant à chaque intervalle de température de surface alimentaire (Tga1, Tga2,...) prédéterminé par le producteur.
  4. Réfrigérateur (1) selon l'une quelconque des revendications précédentes, caractérisé par le ventilateur (5) qui est disposé sur le compartiment de stockage (3).
  5. Réfrigérateur (1) selon l'une quelconque des revendications précédentes, caractérisé par le ventilateur (5) qui est disposé sur le compartiment à aliments frais (2).
  6. Réfrigérateur (1) selon l'une quelconque des revendications précédentes, caractérisé par le ventilateur (5) qui est placé dans le compartiment de stockage (3) afin de refroidir la lampe ultraviolette (4) et les aliments (G).
  7. Réfrigérateur (1) selon l'une quelconque des revendications précédentes, caractérisé par le premier capteur de température (8) et le deuxième capteur de température (9) qui sont des capteurs infrarouges.
  8. Réfrigérateur (1) selon l'une quelconque des revendications précédentes, caractérisé par le premier capteur de température (8) qui est disposée sur le fond du compartiment de stockage (3).
EP14790066.6A 2013-11-04 2014-10-27 Réfrigérateur comprenant un compartment de stockage et une lamp ultraviolette Active EP3066404B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201312724 2013-11-04
PCT/EP2014/072961 WO2015063012A1 (fr) 2013-11-04 2014-10-27 Réfrigérateur comprenant un compartiment de stockage

Publications (2)

Publication Number Publication Date
EP3066404A1 EP3066404A1 (fr) 2016-09-14
EP3066404B1 true EP3066404B1 (fr) 2019-01-09

Family

ID=51830297

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14790066.6A Active EP3066404B1 (fr) 2013-11-04 2014-10-27 Réfrigérateur comprenant un compartment de stockage et une lamp ultraviolette

Country Status (4)

Country Link
EP (1) EP3066404B1 (fr)
CN (1) CN105659042B (fr)
TR (1) TR201721519T3 (fr)
WO (1) WO2015063012A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4300016A1 (fr) * 2022-06-30 2024-01-03 Arçelik Anonim Sirketi Réfrigérateur comprenant une source de lumière uv

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002350039A (ja) * 2001-05-24 2002-12-04 Sanyo Electric Co Ltd 冷蔵庫
JP4374806B2 (ja) * 2001-07-26 2009-12-02 三菱電機株式会社 冷凍冷蔵庫
CN2704003Y (zh) 2003-06-23 2005-06-08 张伟 真空保鲜柜
CN100343602C (zh) * 2003-08-25 2007-10-17 乐金电子(天津)电器有限公司 有温度转换室的双开门电冰箱
US6924495B1 (en) * 2004-02-13 2005-08-02 James Lawrence Brickley Heat controlled ultraviolet light apparatus and methods of sanitizing objects using said apparatus
US7726582B2 (en) * 2005-01-18 2010-06-01 Federspiel Corporation Method and apparatus for converting constant-volume supply fans to variable flow operation
CN100552336C (zh) * 2005-05-26 2009-10-21 松下电器产业株式会社 冰箱
WO2013137838A2 (fr) * 2012-03-16 2013-09-19 Karabulut Ozgur Réfrigérateur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4300016A1 (fr) * 2022-06-30 2024-01-03 Arçelik Anonim Sirketi Réfrigérateur comprenant une source de lumière uv

Also Published As

Publication number Publication date
CN105659042A (zh) 2016-06-08
TR201721519T3 (tr) 2018-08-27
CN105659042B (zh) 2019-05-31
EP3066404A1 (fr) 2016-09-14
WO2015063012A1 (fr) 2015-05-07

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