WO2017114620A1 - Four à micro-ondes ayant une fonction de séchage - Google Patents

Four à micro-ondes ayant une fonction de séchage Download PDF

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Publication number
WO2017114620A1
WO2017114620A1 PCT/EP2016/079275 EP2016079275W WO2017114620A1 WO 2017114620 A1 WO2017114620 A1 WO 2017114620A1 EP 2016079275 W EP2016079275 W EP 2016079275W WO 2017114620 A1 WO2017114620 A1 WO 2017114620A1
Authority
WO
WIPO (PCT)
Prior art keywords
tray
filter
microwave oven
microwave
produced
Prior art date
Application number
PCT/EP2016/079275
Other languages
English (en)
Inventor
Sezgi YIKILMAZCINAR
Metin Gur
Merve GUVEN
Serdal Elmas
Haluk Karatas
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 WO2017114620A1 publication Critical patent/WO2017114620A1/fr

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/6408—Supports or covers specially adapted for use in microwave heating apparatus
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/647—Aspects related to microwave heating combined with other heating techniques
    • H05B6/6491—Aspects related to microwave heating combined with other heating techniques combined with the use of susceptors
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/80—Apparatus for specific applications
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
    • H05B2206/04—Heating using microwaves
    • H05B2206/046—Microwave drying of wood, ink, food, ceramic, sintering of ceramic, clothes, hair

Definitions

  • the present invention relates to a microwave oven wherein foodstuffs, especially such as fruits and vegetables, are dried.
  • the density of the electromagnetic field acting on the central part of the drying tray is higher than the edges of the tray.
  • the foodstuffs placed in the center of the drying tray where the microwave density is higher dry quicker, while a longer period is needed on the edges and corners where the microwave density is lower.
  • the foodstuffs in the center are observed to have burnt.
  • the central part of the tray where the density of the electromagnetic field is high is left empty.
  • the aim of the present invention is the realization of a microwave oven wherein the foodstuffs are enabled to be homogenously dried.
  • the microwave oven realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a tray produced from a microwave permeable material, and a filter that is placed at the center of the tray where the density of the electromagnetic energy is high and that covers the foodstuffs at the center of the tray.
  • the electrometric energy is partially delivered and partially dissipated towards the edge portions of the tray. Consequently, the foodstuffs at the center of the tray are prevented from being damaged and the drying process is enabled to be carried out homogeneously.
  • the filter comprises walls perpendicularly upwards from the base of the tray and a roof disposed onto the said walls.
  • the filter is produced from metal material, which has openings in circular or in other geometric forms at the roof thereof.
  • the ceiling and/or the side walls of the filter is/are grid-shaped.
  • the filter is produced from semi-permeable material with respect to electromagnetic field or from lossy uniaxial material (LUM) that dissipates the electromagnetic energy passing therethrough.
  • LUM lossy uniaxial material
  • Figure 1 - is the schematic view of the microwave oven of the present invention.
  • Figure 2 – is the perspective view of a tray and a filter.
  • Figure 3 — is the sideways schematic view of the tray and the filter.
  • Figure 4 – is the schematic view of the microwaves acting on the tray and the filter.
  • Figure 5 — is the perspective view of the tray and the filter in an embodiment of the present invention.
  • Figure 6 — is the perspective view of the tray and the filter in another embodiment of the present invention.
  • the microwave oven (1) comprises a microwave generator (2), a control unit (3) that controls the microwave generator (2), a tray (4) produced from a microwave permeable material and wherein the foodstuffs to be dried are placed, and a cavity (6) wherein the tray (4) is placed.
  • the microwave oven (1) of the present invention comprises a filter (5) that is placed at the center of the tray (4) wherein the density of the electromagnetic energy is high, that has side walls (9) extending upwards from the tray (4) in a perpendicular or inclined manner and a roof (10) that is disposed onto the said side walls (9), and that enables the microwaves to be partially delivered to the center of the tray (4).
  • the filter (5) of the present invention is disposed at the center of the tray (4) where the density of the electromagnetic energy is higher than the edges.
  • the roof (10) of the filter (5) partially covers the foodstuffs disposed at the center of the tray (4). After the foodstuffs, especially vegetables and fruits, to be dried are placed on the tray (4), the tray (4) is placed into the microwave oven (1).
  • the microwave generator (2) operated by the control unit (3) provides the dissipation of the electromagnetic energy inside of the microwave oven (1).
  • the filter (5) partially conducts the microwaves and delivers the same to the center of the tray (4) and partially dissipates the microwaves and delivers the same to the edges of the tray (4) ( Figure 4).
  • the microwaves are enabled to be directed to the edges from the center of the tray (4) where the density of the electromagnetic energy is high, and the foodstuffs disposed into the tray (4) are enabled to be homogeneously and quickly dried.
  • the tray (4) furthermore comprises holes in such size to allow the passage of the electromagnetic energy and one or more than one support (8) that enables the foodstuffs to be kept in an orderly manner (Figure 2).
  • the filter (5) is produced preferably from metal material and comprises at least one aperture (11) arranged at the roof (10) thereof.
  • the apertures (11) are in the form of a circle the diameter of which is predetermined by experimental studies ( Figure 5).
  • the filter (5) has a grid-shaped roof (10) ( Figure 6).
  • the filter (5) together with the roof (10) and the side walls (9) thereof are in the form of a cage.
  • the filter (5) is produced from porous material.
  • the filter (5) is produced from a material that is semi-permeable with respect to the electromagnetic field and that comprises elements such as silicon, germanium, gallium, etc.
  • the filter (5) is produced from a lossy uniaxial material (LUM) such as ceramic, bitumen, silicon rubber, etc., that dissipates the electromagnetic energy passing therethrough.
  • LUM lossy uniaxial material
  • the dense microwaves acting at the center of the tray (4) are allowed to partially pass by means of a filter (5) and partially dissipated towards the edges, thus the foodstuffs at the center of the tray (4) are prevented from being damaged and a homogeneous and quick drying process is realized.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

La présente invention concerne un four à micro-ondes (1) comprenant un générateur de micro-ondes (2), une unité de commande (3) qui commande le générateur de micro-ondes (2), un plateau fabriqué avec un matériau perméable aux micro-ondes et sur lequel sont placées des denrées alimentaires à sécher, et une cavité (6) dans laquelle est placé le plateau (4).
PCT/EP2016/079275 2015-12-29 2016-11-30 Four à micro-ondes ayant une fonction de séchage WO2017114620A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201517202 2015-12-29
TRA2015/17202 2015-12-29

Publications (1)

Publication Number Publication Date
WO2017114620A1 true WO2017114620A1 (fr) 2017-07-06

Family

ID=57442705

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/079275 WO2017114620A1 (fr) 2015-12-29 2016-11-30 Four à micro-ondes ayant une fonction de séchage

Country Status (1)

Country Link
WO (1) WO2017114620A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2236646A (en) 1989-08-31 1991-04-10 Gold Star Co Tableware drying in a microwave oven
US20060151490A1 (en) * 2005-01-07 2006-07-13 Dodge Angela N Combination microwave oven pedestal and support cooking sheets for microwavable dough products
WO2007084057A1 (fr) * 2006-01-18 2007-07-26 Pilgrimsfalken Ab Dispositif moderateur de rayonnement dans un four a micro-ondes
EP2538751A2 (fr) * 2011-06-24 2012-12-26 Samsung Electronics Co., Ltd. Plateau pour four à micro-ondes, four à micro-ondes l'utilisant, procédé de commande d'un four à micro-ondes et procédé de fabrication de plateau pour four à micro-ondes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2236646A (en) 1989-08-31 1991-04-10 Gold Star Co Tableware drying in a microwave oven
US20060151490A1 (en) * 2005-01-07 2006-07-13 Dodge Angela N Combination microwave oven pedestal and support cooking sheets for microwavable dough products
WO2007084057A1 (fr) * 2006-01-18 2007-07-26 Pilgrimsfalken Ab Dispositif moderateur de rayonnement dans un four a micro-ondes
EP2538751A2 (fr) * 2011-06-24 2012-12-26 Samsung Electronics Co., Ltd. Plateau pour four à micro-ondes, four à micro-ondes l'utilisant, procédé de commande d'un four à micro-ondes et procédé de fabrication de plateau pour four à micro-ondes

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