EP0436430B1 - Mikrowellenherd mit Drehteller - Google Patents

Mikrowellenherd mit Drehteller Download PDF

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Publication number
EP0436430B1
EP0436430B1 EP90403740A EP90403740A EP0436430B1 EP 0436430 B1 EP0436430 B1 EP 0436430B1 EP 90403740 A EP90403740 A EP 90403740A EP 90403740 A EP90403740 A EP 90403740A EP 0436430 B1 EP0436430 B1 EP 0436430B1
Authority
EP
European Patent Office
Prior art keywords
plate
circular
vertical axis
horizontal
treatment
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.)
Expired - Lifetime
Application number
EP90403740A
Other languages
English (en)
French (fr)
Other versions
EP0436430A1 (de
Inventor
Gérard Pressouyre
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.)
Thomson Electromenager SA
Original Assignee
Thomson Electromenager SA
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 Thomson Electromenager SA filed Critical Thomson Electromenager SA
Publication of EP0436430A1 publication Critical patent/EP0436430A1/de
Application granted granted Critical
Publication of EP0436430B1 publication Critical patent/EP0436430B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H05B6/6411—Supports or covers specially adapted for use in microwave heating apparatus the supports being rotated

Definitions

  • the present invention relates to a microwave oven with turntable.
  • a microwave oven typically includes a compartment serving as a processing enclosure and a compartment for housing a magnetron microwave production system.
  • the microwaves produced by the production system are brought by a waveguide into the processing enclosure where an article or food product subjected to a cooking or reheating or thawing treatment is stored. If this article or food product remains motionless inside this enclosure during this treatment, the microwaves in their standing wave regime in this enclosure cause a non-uniform treatment in the mass of this article or product in other words in the mass of this article or food product there are more cooked areas or well reheated or properly thawed which alternate with less cooked areas or still cold or poorly thawed. To make this treatment uniform throughout the article or food product, several solutions have been proposed.
  • One of these known solutions consists in mounting in the oven at the outlet of a waveguide, a microwave stirring device in order to obtain a complex regime of standing microwave waves in the enclosure of treatment. This solution brings an improvement in the result obtained but the treatment is still far from uniform throughout the mass of the article or product subjected to this treatment.
  • Another known solution provides in the oven treatment enclosure, a turntable with a fixed concentric axis of rotation, the axis being coincident with the center of the tray, to receive an article or product subjected to treatment. During this treatment, the turntable with concentric axis of rotation makes it possible to continuously change the position of the article or product in the enclosure by presenting it to the microwaves.
  • the present invention aims to avoid the drawbacks of the known solutions mentioned above and makes it possible to produce a microwave oven, economical and efficient, giving uniform treatment throughout the entire mass of the article or product subjected to treatment. in his precinct.
  • the present invention relates to a microwave oven according to claim 1 or 3.
  • a microwave oven 1 according to the exemplary embodiment illustrated in FIG. 1, comprises two compartments 2, 3, a compartment 2 intended to house a microwave production system not shown and a compartment 3 serving as enclosure treatment.
  • the compartment 3 is closed by a door 5.
  • the microwaves produced by the system housed in the compartment 2 are brought into the treatment enclosure 3 by a waveguide not shown.
  • the microwaves maintain a steady wave regime there, penetrate the articles or food products stored in this enclosure 3 and carry out a cooking, reheating or thawing treatment.
  • a microwave oven comprises in its treatment enclosure as a turntable, a tray which receives articles or products subjected to a treatment and realizes during this treatment a setting in motion of these articles or products according to a circular path in this treatment enclosure.
  • the microwave oven 1 comprises in its treatment enclosure 3 as a turntable, a horizontal tray rotating around the vertical axis 10 corresponding to the center of the tray.
  • the oven comprises a fixed and vertical axis inside the enclosure eccentric with respect to the center of the plate, said vertical axis of the plate being simultaneously driven in rotation around the vertical fixed axis of the furnace.
  • the microwave oven 1 comprises in the treatment enclosure 3 on the one hand a horizontal hollow circular fixed base 11 and a movable driving disc 12, mounted rotatably concentrically to this bottom in a central opening of the latter, around a vertical axis 13 and provided on the periphery of its upper surface, with a circular wiper with a high coefficient of friction 14, and on the other hand as a turntable, a free tray 15 with rim circular 16 placed, free of any attachment, in the horizontal hollow circular fixed base 11 and straddling this movable driving disc 12.
  • the microwave oven 1 comprises in the treatment enclosure 3 on the one hand, as a rotating plate a circular horizontal plate 20 rotating around a vertical axis concentric 21, mounted freely in movement on this vertical axis 21 and provided on the periphery of its circular lower surface, with at least three castors with horizontal axis of rotation 24, angularly spaced and aligned on a circular line, and on the other hand , on the bottom wall 27 of this enclosure 3, a circular track 29 for rollers 24, concentric with the vertical axis of rotation 21 of the circular horizontal plate 20, having a diameter equal to that of the circular line of alignment of these rollers 24 and formed of an alternating succession of a number of angularly spaced bosses 30 and recesses 31 which is the same number or a multiple of the number of these rollers s 24 of tray 20.
  • the horizontal plate 20 oscillates vertically between its maximum high position represented in solid lines and its maximum low position represented in broken lines in FIG. 4.
  • the path of the articles or products carried by this plate 20 is a non-circular path forming a left curve in space.
  • rollers 24 of the plate 20 and the circular track 29 are replaced by an equivalent system with cams and cam followers or an equivalent system with screws, of a known type, allowing this plate 20 to rotate around a vertical axis and oscillate simultaneously along this axis.
  • the cooking, heating or defrosting of an article or product in the treatment chamber 3 of the microwave oven 1 is advantageously uniform throughout the mass of this article or product.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Electric Ovens (AREA)

Claims (5)

  1. Mikrowellenherd, der in seinem Ofenraum einen waagrechten Teller besitzt, auf den ein zu behandelndes Gut gelegt wird und der um eine durch ihren Mittelpunkt verlaufende senkrechte Achse dreht, dadurch gekennzeichnet, daß der Ofen eine ortsfeste senkrechte Achse (13) besitzt, die im Inneren des Ofenraums exzentrisch bezüglich des Mittelpunkts des Tellers (15) verläuft, wobei die senkrechte Achse des Tellers zugleich um die ortsfeste senkrechte Achse (13) des Ofens in Drehung (15a, 15b, 15c) versetzt wird.
  2. Herd nach Anspruch 1, dadurch gekennzeichnet, daß er in seinem Ofenraum (3) einerseits einen waagrechten, vertieften, kreisförmigen, ortsfesten Boden (11) und eine bewegliche, waagrechte Antriebsscheibe (12), die konzentrisch zu diesem Boden in einer zentralen Öffnung des Bodens um eine senkrechte ortsfeste Achse (13) drehbar montiert ist und auf dem Rand ihrer oberen Oberfläche einen kreisförmigen Mitnehmer (14) mit großem Reibungskoeffizienten besitzt, und andererseits als Drehteller eine frei bewegliche Platte (15) mit kreisförmigen Rand (16) aufweist, die ohne jede Befestigung auf den waagrechten vertieften, kreisförmigen, ortsfesten Boden (11) aufgesetzt ist und auf der beweglichen Mitnehmerscheibe (12) sitzt.
  3. Mikrowellenherd, der in seinem Ofenraum einen Drehteller zur Aufnahme von zu behandelndem Gut besitzt, dadurch gekennzeichnet, daß der Drehteller eine kreisförmige Platte (20) ist, die um die durch ihren Mittelpunkt verlaufende senkrechte Achse (21) drehbar ist und entlang dieser senkrechten Achse (21) frei beweglich ist, und daß Mittel vorgesehen sind, die die Platte gleichzeitig senkrecht entlang dieser Achse sich hin- und herbewegen lassen.
  4. Mikrowellenherd nach Anspruch 3, dadurch gekennzeichnet, daß die Mittel von mindestens drei Rollen (24) mit waagrechten Drehachsen, die winkelmäßig verteilt auf einer Kreislinie entlang des Umfangs der Unterseite der Platte angeordnet sind, und von einer kreisförmigen Rollbahn (29) gebildet werden, die auf dem Boden (27) des Ofenraums (3) vorgesehen ist und deren Durchmesser gleich dem der Kreislinie ist, auf der die Rollen (24) angeordnet sind, wobei die Kreisbahn von einer abwechselnden Folge einer Anzahl von winkelmäßig verteilten Bergen (30) und Tälern (31) gebildet wird, die der Anzahl der Rollen (24) der waagrechten Platte (25) gleicht oder ein Vielfaches davon ist.
  5. Mikrowellenherd nach Anspruch 4, dadurch gekennzeichnet, daß die Rollen (24) des waagrechten Drehtellers (20) und die Kreisbahn (29), auf der diese Rollen sich bewegen, durch äquivalente Systeme von Nocken und Nockentastern oder von Schrauben ersetzt sind, die es ermöglichen, daß dieser Teller (20) um eine senkrechte Achse (21) dreht und sich zugleich entlang dieser Achse sich hin- und herbewegt.
EP90403740A 1990-01-05 1990-12-21 Mikrowellenherd mit Drehteller Expired - Lifetime EP0436430B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9000076A FR2656918B1 (fr) 1990-01-05 1990-01-05 Four a micro-ondes a plateau tournant.
FR9000076 1990-01-05

Publications (2)

Publication Number Publication Date
EP0436430A1 EP0436430A1 (de) 1991-07-10
EP0436430B1 true EP0436430B1 (de) 1993-10-27

Family

ID=9392535

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90403740A Expired - Lifetime EP0436430B1 (de) 1990-01-05 1990-12-21 Mikrowellenherd mit Drehteller

Country Status (8)

Country Link
US (1) US5315086A (de)
EP (1) EP0436430B1 (de)
AT (1) ATE96532T1 (de)
DE (1) DE69004241T2 (de)
DK (1) DK0436430T3 (de)
ES (1) ES2045865T3 (de)
FR (1) FR2656918B1 (de)
HK (1) HK88896A (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5804800A (en) * 1995-08-31 1998-09-08 Samsung Electronics Co., Ltd. Turn table driving apparatus of microwave oven
KR100451935B1 (ko) * 2001-06-19 2004-10-22 주식회사 엘지 전자레인지의 트레이 선형이동장치
CA2363579C (en) 2001-06-19 2006-10-03 Lg Electronics Inc. Device for linearly moving tray in microwave oven
CN1299063C (zh) * 2003-02-21 2007-02-07 乐金电子(天津)电器有限公司 微波炉的腔体结构
EP1574257B1 (de) * 2003-12-17 2007-02-21 Mikrowellen-Systeme MWS GmbH Vorrichtung zum Erhitzen von einem in einem Behälter befindlichen Stoff
KR20050118517A (ko) * 2004-06-14 2005-12-19 삼성전자주식회사 전자렌지
KR20050118994A (ko) * 2004-06-15 2005-12-20 삼성전자주식회사 전자렌지

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1092484A (en) * 1965-04-08 1967-11-22 Microtherm Ltd Improvements in and relating to electronic heating devices
US3849623A (en) * 1973-10-25 1974-11-19 Raytheon Co Microwave heating apparatus
JPS5236347A (en) * 1975-09-16 1977-03-19 Matsushita Electric Ind Co Ltd High frequency heating equipment
JPS5236348A (en) * 1975-09-18 1977-03-19 Hitachi Heating Appliance Co Ltd Micro wave heating equipment
BE845849A (fr) * 1976-09-03 1976-12-31 Four de cuisson a micro-ondes avec plateau tournant
US4424431A (en) * 1982-01-04 1984-01-03 Whirlpool Corporation Turntable drive for a microwave oven
US4742202A (en) * 1983-06-20 1988-05-03 The United State Of America As Represented By The Secretary Of The Navy Microwave apparatus for heating contained liquid
US4631379A (en) * 1984-04-20 1986-12-23 Kabushiki Kaisha Toshiba High-frequency heating device having rotatable tray and high frequency wave agitator
GB2162728A (en) * 1984-08-01 1986-02-05 Thorn Emi Domestic Appliances Cooking apparatus
US4636605A (en) * 1985-07-17 1987-01-13 Rubbermaid Incorporated Mode stirring turntable for microwave oven
US4757173A (en) * 1987-05-28 1988-07-12 Gold Star Co., Ltd. Turntable for use in a microwave oven
AU622049B2 (en) * 1989-10-25 1992-03-26 Kabushiki Kaisha Toshiba Heating cooking appliance

Also Published As

Publication number Publication date
DE69004241T2 (de) 1994-03-03
US5315086A (en) 1994-05-24
DK0436430T3 (da) 1994-03-07
ES2045865T3 (es) 1994-01-16
FR2656918A1 (fr) 1991-07-12
ATE96532T1 (de) 1993-11-15
DE69004241D1 (de) 1993-12-02
EP0436430A1 (de) 1991-07-10
FR2656918B1 (fr) 1998-01-02
HK88896A (en) 1996-05-31

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