DE1049019B - Device for the heat treatment of an item to be treated consisting of organic substances in an electromagnetic high-frequency field - Google Patents

Device for the heat treatment of an item to be treated consisting of organic substances in an electromagnetic high-frequency field

Info

Publication number
DE1049019B
DE1049019B DEB32306A DEB0032306A DE1049019B DE 1049019 B DE1049019 B DE 1049019B DE B32306 A DEB32306 A DE B32306A DE B0032306 A DEB0032306 A DE B0032306A DE 1049019 B DE1049019 B DE 1049019B
Authority
DE
Germany
Prior art keywords
item
frequency field
heat treatment
organic substances
treated
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.)
Pending
Application number
DEB32306A
Other languages
German (de)
Inventor
Dr Georg Guellner
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.)
Deutsche Elektronik GmbH
Original Assignee
Deutsche Elektronik GmbH
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 Deutsche Elektronik GmbH filed Critical Deutsche Elektronik GmbH
Priority to DEB32306A priority Critical patent/DE1049019B/en
Publication of DE1049019B publication Critical patent/DE1049019B/en
Pending legal-status Critical Current

Links

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
    • H05B6/647—Aspects related to microwave heating combined with other heating techniques
    • H05B6/6482—Aspects related to microwave heating combined with other heating techniques combined with radiant heating, e.g. infrared heating
    • 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
    • H05B6/6402—Aspects relating to the microwave cavity
    • 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
    • H05B6/6494—Aspects related to microwave heating combined with other heating techniques combined with the use of susceptors for cooking

Description

DEUTSCHESGERMAN

Die Erfindung betrifft eine Einrichtung zur Wärmebehandlung eines aus organischen Substanzen bestehenden Behandlungsgutes in einem elektromagnetischen Hochfrequenzfeld, bei der gleichzeitig auch eine Wärmebestrahlung vorgesehen ist, z. B. zum Garen (Kochen, Backen, Braten) von Nahrungsmitteln, und soll die Oberflächenbeschaffenheit des Gutes verbessern.The invention relates to a device for the heat treatment of an organic substance Items to be treated in an electromagnetic high-frequency field, at the same time also thermal radiation is provided, e.g. B. for cooking (boiling, baking, frying) food, and should improve the surface quality of the goods.

Es ist eine bekannte Tatsache, daß im Hochfrequenzfeld zubereitete Speisen keine Krustenbildung oder Bräunung der Oberfläche zeigen. Das wird trotz seiner Vorzüge unter diätetischen Gesichtspunkten häufig als nachteilig empfunden.It is a known fact that food prepared in the high frequency field does not crust or show browning of the surface. This is despite its merits from a dietary point of view often perceived as disadvantageous.

Es ist deshalb schon vorgeschlagen worden, das Behandlungsgut zusätzlich mit Infrarotstrahlen zu behandeln. So sind Einrichtungen bekannt, bei denen während der Hochfrequenzbestrahlung gleichzeitig eine Infrarotbestrahlung angewendet wird, die die Temperatur einer Oberflächenschicht des Behandlungsgutes über die durch die Hochfrequenzeinwirkung er- zeugte Innentemperatur erhöht. Zu diesem Zweck werden zusätzliche Heizkörper verwendet, die Infrarotstrahlung in den Behandlungsraum schicken und das Behandlungsgut auf seiner Oberfläche bräunen, soweit dieses von den Infrarotstrahlen getroffen werden kann. Der Nachteil dieser bekannten Einrichtungen besteht darin, daß das Behandlungsgut nicht auf seiner Unterseite gebräunt werden kann, weil es auf einer Unterlage liegt, die verhindert, daß die Infrarotstrahlen die Unterseite des Behandlungsgutes erreichen.It has therefore already been proposed to additionally treat the material to be treated with infrared rays. Thus, devices are known in which during the high-frequency irradiation at the same time an infrared radiation is used, which increases the temperature of a surface layer of the item to be treated by the high frequency effect generated internal temperature increased. Additional heating elements, infrared radiation, are used for this purpose send to the treatment room and brown the item to be treated on its surface, as far as this can be hit by the infrared rays. The disadvantage of these known devices is that the material to be treated can not be browned on its underside because it lies on a surface that prevents the infrared rays from affecting the underside of the item to be treated reach.

Hier schafft die erfindungsgemäße Einrichtung Abhilfe, die eine allseitige Erwärmung der Oberfläche des Behandlungsgutes auch dann gewährleistet, wenn aus baulichen Gründen mit einer Infrarotbestrahlung eine allseitige Erwärmung nicht zu erreichen ist. Um auch die von den Infrarotstrahlen nicht erreichbare Unterseite des Behandlungsgutes zu erhitzen, wird erfindungsgemäß vorgeschlagen, daß die Unterlage für das Gut aus einer keramischen Masse mit einem solchen Verlustfaktor besteht, daß sie im Hochfrequenzfeld eine höhere Temperatur annimmt als das Innere des Gutes. Die Verwendung von Beilagen aus keramischer Masse ist an sich bereits bei industriellen Anwendungen der Hochfrequenzerwärmung bekannt; dort dienen die keramischen Körper jedoch zur Verhinderung der Wärmeabgabe an die kühlere Umgebung. The device according to the invention provides a remedy here, which ensures that the surface of the item to be treated is heated on all sides even if For structural reasons, heating on all sides cannot be achieved with infrared radiation. Around also to heat the underside of the item to be treated, which cannot be reached by the infrared rays proposed according to the invention that the base for the good made of a ceramic mass with a there is such a loss factor that it assumes a higher temperature than that in the high-frequency field Interior of the property. The use of shims made of ceramic mass is in itself already in industrial Applications of high frequency heating known; there, however, the ceramic bodies serve for prevention the heat dissipation to the cooler environment.

Die Zeichnung zeigt im Aufriß ein Ausführungsbeispiel der erfindungsgemäßen Einrichtung zur Er- läuterung des Erfindungsgedankens.The drawing shows in elevation an embodiment of the device according to the invention for purification of the idea of the invention.

Die erfindungsgemäße Einrichtung hat einen Hohlraum 2, in dem eine organische Substanz 3,, z. B. ein Teigkloß oder ein Fleischstück, auf einer Unterlage 4 Einrichtung zur WärmebehandlungThe device according to the invention has a cavity 2 in which an organic substance 3 ,, z. B. a Dough ball or a piece of meat, on a base 4 device for heat treatment

eines aus organischen Substanzenone made of organic substances

bestehenden Behandlungsgutes in einemexisting item to be treated in one

elektromagnetischen Hochfrequenzfeldhigh frequency electromagnetic field

Anmelder:Applicant:

Deutsche Elektronik G.m.b.H.,
Berlin-Wilmersdorf, Forckenbeckstr. 9/13German Electronics GmbH,
Berlin-Wilmersdorf, Forckenbeckstr. 9/13

Dr. Georg Güllner, Berlin-Wilmersdorf,
ist als Erfinder genannt wordenDr. Georg Güllner, Berlin-Wilmersdorf,
has been named as the inventor

durch eingestrahlte Hochfrequenzenergie erwärmt wird. Mit 5 ist eine Magnetfeldröhre als Hochfrequenzerzeuger angedeutet, deren Energie über einen Hohlleiter 6 in einen Hornstrahler 7 ausgekoppelt wird. Eine den Hohlraum 2 abdeckende Haube 9 ist aufklappbar.is heated by radiated high frequency energy. With 5 is a magnetron as a high frequency generator indicated, the energy of which is coupled out via a waveguide 6 into a horn antenna 7 will. A hood 9 covering the cavity 2 can be opened.

Zur Bräunung des Back- oder Bratgutes sind über der Haube 9 Infrarotstrahler 10 hinter Schlitzen 12 angeordnet. Diese Schlitze sind in ihren Abmessungen zweckmäßigerweise so> gewählt, daß sie mit hinreichendem Abstand kleiner als die Grenzwellenlänge der Hochfrequenzstrahlung sind. Auf der Rückseite der Strahler befinden sich Spiegel 13. Strahler und Spiegel sind unter Hauben untergebracht, die Entlüftungsschlitze 14 aufweisen.For browning the baked or roasted food, there are infrared radiators 10 behind slots 12 above the hood 9 arranged. These slots are expediently chosen in terms of their dimensions so that they have sufficient Distance are smaller than the cut-off wavelength of the high-frequency radiation. On the back side the spotlights are mirrors 13. spotlights and Mirrors are housed under hoods which have ventilation slots 14.

Die Hochfrequenzstrahlung tritt aus dem Hornstrahler 7 von unten durch den für sie durchlässigen Boden 15 in den Hohlraum 2 und von allen Seiten, auch durch den Boden der strahlungsdurohlässigen Unterlage 4, in das Nahrungsmittel 3, ein. Um auch die Unterseite des Gutes bräunen zu können — infolge der kurzen Einwirkungszeit ist ein Umwenden nicht zweckmäßig —, liegt in der Unterlage 4 eine Auflagefläche 16, etwa ein Rost aus einer keramischen Masse, deren Verlustfaktor so groß ist, daß sie sich unter der Einwirkung des Hochfrequenzfeldes auf eine höhere Temperatur erwärmt als das Innere des Behandlungsgutes 3. Die so erzeugte Hitze überträgt sich durch Berührung und Strahlung auf die Unterseite des Gutes 3 und bräunt diese.The high-frequency radiation emerges from the horn antenna 7 from below through the one that is permeable to it Bottom 15 into the cavity 2 and from all sides, also through the bottom of the radiation-permeable Pad 4, in the food 3. In order to be able to brown the underside of the goods - as a result Due to the short exposure time, turning it over is not advisable - if there is a support surface in the base 4 16, for example a grate made of a ceramic mass, the loss factor of which is so large that it is below the The effect of the high-frequency field is heated to a higher temperature than the inside of the item to be treated 3. The heat generated in this way is transmitted through Contact and radiation on the underside of the goods 3 and browns them.

809 730/345809 730/345

Claims (1)

Patentanspruch:Claim: Einrichtung zur Wärmebehandlung eines aus organischen Substanzen bestehenden Behandlungsgutes in einem elektromagnetischen Hochfrequenzfeld, bei der gleichzeitig auch eine Wärmebestrahlung vorgesehen ist, dadurch gekennzeichnet, daß die Unterlage für das Gut aus einer keramischen Masse mit einem solchen Verlustfaktor besteht, daß sie im Hochfrequenzfeld eine höhere Temperatur annimmt als das Innere des Gutes.Device for the heat treatment of an item to be treated consisting of organic substances in an electromagnetic high-frequency field, with which there is also heat radiation at the same time is provided, characterized in that the base for the material consists of a ceramic mass with such a loss factor is that it assumes a higher temperature in the high-frequency field than the interior of the Good. In Betracht gezogene Druckschriften: Schweizerische Patentschrift Nr. 282 071; USA.-Patentschriften Nr. 2 491 687, 2 597 825; »TechnischeMitteilungen«, 1954, Heft 2 (Februar), S. 50, 99, 100.Considered publications: Swiss patent specification No. 282 071; U.S. Patent Nos. 2,491,687, 2,597,825; "Technical Communications", 1954, Issue 2 (February), pp. 50, 99, 100. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEB32306A 1954-08-20 1954-08-20 Device for the heat treatment of an item to be treated consisting of organic substances in an electromagnetic high-frequency field Pending DE1049019B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB32306A DE1049019B (en) 1954-08-20 1954-08-20 Device for the heat treatment of an item to be treated consisting of organic substances in an electromagnetic high-frequency field

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB32306A DE1049019B (en) 1954-08-20 1954-08-20 Device for the heat treatment of an item to be treated consisting of organic substances in an electromagnetic high-frequency field

Publications (1)

Publication Number Publication Date
DE1049019B true DE1049019B (en) 1959-01-22

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1097594B (en) * 1959-07-15 1961-01-19 Therma Ag Device for heating materials by means of high frequency energy
DE1149473B (en) * 1960-06-14 1963-05-30 Alfred Neff Dr Microwave warming device for heating goods
DE1281074B (en) * 1960-11-17 1968-10-24 Philips Nv Device for heating frozen food using microwaves
US3777099A (en) * 1968-02-09 1973-12-04 M Levinson Methods of heating an article in a microwave oven
US3783220A (en) * 1970-07-06 1974-01-01 Yamamizu Shoji Kk Method and apparatus for browning exterior surfaces of foodstuff in an electronic range
US3941967A (en) * 1973-09-28 1976-03-02 Asahi Kasei Kogyo Kabushiki Kaisha Microwave cooking apparatus
US4190757A (en) * 1976-10-08 1980-02-26 The Pillsbury Company Microwave heating package and method
EP0226407A2 (en) * 1985-12-11 1987-06-24 THORN EMI Patents Limited An oven
WO1990003716A1 (en) * 1988-09-28 1990-04-05 Core Consulting Group Limited Microwave-powered heating chamber
WO1990003718A1 (en) * 1988-09-28 1990-04-05 Core Consulting Group Limited Microwave-powered heating chamber
WO1990003715A1 (en) * 1988-09-28 1990-04-05 Core Consulting Group Limited Improved microwave-powered heating device
WO1990003717A1 (en) * 1988-09-28 1990-04-05 Core Consulting Group Limited Improved microwave-powered heating device
WO1990003714A1 (en) * 1988-09-28 1990-04-05 Core Consulting Group Limited Microwave-powered heating chamber
EP0580570A1 (en) * 1991-02-18 1994-02-02 Melvin L Levinson Two-stage process for cooking/browning/crusting food by microwave energy and infrared energy.
EP0688146A2 (en) * 1994-06-13 1995-12-20 Whirlpool Europe B.V. Method for controlling a microwave oven, microwave oven and its use for cooking or heating food in accordance with the method
DE19633247A1 (en) * 1996-08-17 1998-02-19 Karlsruhe Forschzent Microwave sintering furnace
DE102006052169A1 (en) * 2006-11-02 2008-05-08 Ivan Dr. Imenokhoyev Microwave device i.e. microwave oven, for heating goods, has chamber type applicator with hood and base plate, which limits chamber volumes, where hood has concave inner surface surrounding goods to be warmed in dome shaped manner
DE102008001637A1 (en) 2008-05-07 2009-11-12 Imenokhoyev, Ivan, Dr. Microwave oven e.g. multi-mode oven, for high temperature treatment of food, has auxiliary heating system provided in area of baseplate, where goods to be heated are placed in center of inner surface of hood of applicator on recess

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2491687A (en) * 1945-06-26 1949-12-20 Nutt John Henry Apparatus for baking dough products
CH282071A (en) * 1951-04-25 1952-04-15 Felber Norbert Method and device for baking baked goods.
US2597825A (en) * 1948-07-20 1952-05-20 Hotpoint Inc Combination electric and ultrahighfrequency heating apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2491687A (en) * 1945-06-26 1949-12-20 Nutt John Henry Apparatus for baking dough products
US2597825A (en) * 1948-07-20 1952-05-20 Hotpoint Inc Combination electric and ultrahighfrequency heating apparatus
CH282071A (en) * 1951-04-25 1952-04-15 Felber Norbert Method and device for baking baked goods.

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1097594B (en) * 1959-07-15 1961-01-19 Therma Ag Device for heating materials by means of high frequency energy
DE1149473B (en) * 1960-06-14 1963-05-30 Alfred Neff Dr Microwave warming device for heating goods
DE1281074B (en) * 1960-11-17 1968-10-24 Philips Nv Device for heating frozen food using microwaves
US3777099A (en) * 1968-02-09 1973-12-04 M Levinson Methods of heating an article in a microwave oven
US3783220A (en) * 1970-07-06 1974-01-01 Yamamizu Shoji Kk Method and apparatus for browning exterior surfaces of foodstuff in an electronic range
US3941967A (en) * 1973-09-28 1976-03-02 Asahi Kasei Kogyo Kabushiki Kaisha Microwave cooking apparatus
US4190757A (en) * 1976-10-08 1980-02-26 The Pillsbury Company Microwave heating package and method
EP0226407A2 (en) * 1985-12-11 1987-06-24 THORN EMI Patents Limited An oven
EP0226407A3 (en) * 1985-12-11 1988-03-23 THORN EMI Patents Limited An oven
WO1990003716A1 (en) * 1988-09-28 1990-04-05 Core Consulting Group Limited Microwave-powered heating chamber
WO1990003718A1 (en) * 1988-09-28 1990-04-05 Core Consulting Group Limited Microwave-powered heating chamber
WO1990003715A1 (en) * 1988-09-28 1990-04-05 Core Consulting Group Limited Improved microwave-powered heating device
WO1990003717A1 (en) * 1988-09-28 1990-04-05 Core Consulting Group Limited Improved microwave-powered heating device
WO1990003714A1 (en) * 1988-09-28 1990-04-05 Core Consulting Group Limited Microwave-powered heating chamber
US5136133A (en) * 1988-09-28 1992-08-04 Briggs David H Microwave heating apparatus
US5142114A (en) * 1988-09-28 1992-08-25 Briggs David H Microwave chamber for heating foodstuffs
US5144105A (en) * 1988-09-28 1992-09-01 Briggs David H Microwave heating apparatus with a combined food scoop and door
EP0580570A1 (en) * 1991-02-18 1994-02-02 Melvin L Levinson Two-stage process for cooking/browning/crusting food by microwave energy and infrared energy.
EP0580570A4 (en) * 1991-02-18 1994-04-27 Melvin L. Levinson
EP0688146A2 (en) * 1994-06-13 1995-12-20 Whirlpool Europe B.V. Method for controlling a microwave oven, microwave oven and its use for cooking or heating food in accordance with the method
EP0688146A3 (en) * 1994-06-13 1996-11-06 Whirlpool Europ Method for controlling a microwave oven, microwave oven and its use for cooking or heating food in accordance with the method
DE19633247A1 (en) * 1996-08-17 1998-02-19 Karlsruhe Forschzent Microwave sintering furnace
DE19633247C2 (en) * 1996-08-17 1999-09-09 Karlsruhe Forschzent Microwave oven for sintering sintered material and method for sintering sintered material with such an oven
DE102006052169A1 (en) * 2006-11-02 2008-05-08 Ivan Dr. Imenokhoyev Microwave device i.e. microwave oven, for heating goods, has chamber type applicator with hood and base plate, which limits chamber volumes, where hood has concave inner surface surrounding goods to be warmed in dome shaped manner
DE102008001637A1 (en) 2008-05-07 2009-11-12 Imenokhoyev, Ivan, Dr. Microwave oven e.g. multi-mode oven, for high temperature treatment of food, has auxiliary heating system provided in area of baseplate, where goods to be heated are placed in center of inner surface of hood of applicator on recess
DE102008001637B4 (en) * 2008-05-07 2010-07-22 Imenokhoyev, Ivan, Dr. Microwave oven for the thermal treatment of goods

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