EP0029179A1 - Kombinierter Herd für Mikrowellen- und konventionellen Widerstands-Heizbetrieb - Google Patents

Kombinierter Herd für Mikrowellen- und konventionellen Widerstands-Heizbetrieb Download PDF

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Publication number
EP0029179A1
EP0029179A1 EP80106824A EP80106824A EP0029179A1 EP 0029179 A1 EP0029179 A1 EP 0029179A1 EP 80106824 A EP80106824 A EP 80106824A EP 80106824 A EP80106824 A EP 80106824A EP 0029179 A1 EP0029179 A1 EP 0029179A1
Authority
EP
European Patent Office
Prior art keywords
ceramic plate
glass ceramic
coupling
cooking space
coupling opening
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.)
Withdrawn
Application number
EP80106824A
Other languages
German (de)
English (en)
French (fr)
Inventor
Heinrich Keppel
Peter Klapper
Herbert Fleischmann
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs 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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of EP0029179A1 publication Critical patent/EP0029179A1/de
Withdrawn legal-status Critical Current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
    • H05B6/6402—Aspects relating to the microwave cavity
    • H05B6/6405—Self-cleaning 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
    • H05B6/6482—Aspects related to microwave heating combined with other heating techniques combined with radiant heating, e.g. infrared heating

Definitions

  • the invention relates to a combined oven for microwave and conventional resistance heating operation, which is equipped with a device for pyrolytic cleaning of the cooking space and a cooling air system for the electrical components and in which the cooking space is provided with a coupling opening covered by a glass ceramic plate is and the glass ceramic plate is secured in the cooking chamber wall by means of a circumferential fastening frame and a coupling housing with a microwave energy generation and supply device is attached outside the coupling opening.
  • a stove of this type is the subject of DE-A-27 15 655.
  • humid vapors which mainly contain fat and protein particles, occur to a considerable extent.
  • Such vapors get everywhere from the cooking chamber, which is under slight overpressure, through the smallest gaps or openings in the stove housing.
  • Subsequent condensation causes the device parts affected by it to become considerably dirty.
  • the electrical or electronic components of the microwave energy generation and supply device that are practically inaccessible to the user are particularly at risk. The consequence of this is that the performance of this device is reduced by the dirt precipitation and premature failure is expected.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, solves the problem of improving a range of the type mentioned in such a way that the penetration of vapors from the cooking space and thus a condensation precipitation, especially in the coupling housing and thus on the microwave energy generation - And feeder device is avoided with certainty.
  • the advantages achieved by the invention are essentially to be seen in the fact that by sealing the glass ceramic plate and generating an overpressure within the coupling housing, which is opposed to the substantially lower penetration pressure of the vapors or gases from the cooking space, vapors or vapors penetrate . Contaminated gases in the area of the covered coupling opening in the coupling housing are reliably prevented and the associated contamination is prevented in this inaccessible space. As a result, the operability and thus the service life of the microwave energy generating device is considerably extended, and the maintenance work and maintenance costs of such combination stoves are kept down.
  • the cooking space 1 of an oven (not shown in further detail) has a conventional electrical jacket tube heating element 2 on the top side and is closed on the front side by a cooking space door 3.
  • a recessed area is provided in the bottom 4 of the cooking space 1, which, for example, has a rectangular shape.
  • Coupling opening 5 is formed with a circumferential flange 6 arranged recessed relative to the bottom 4.
  • the coupling opening 5 is covered by a glass ceramic plate 7 resting on the flange 6:
  • a high-temperature-resistant sealing element 8 for example made of a highly refractory ceramic fiber, is arranged.
  • the glass ceramic plate 7 resting on the sealing element 8 is secured in its recessed position by a circumferential fastening frame 9 which is screwed to the bottom 4 of the cooking space 1.
  • the mounting frame 9 is supported with the interposition of an elastic, high-temperature-resistant seal 10, which must also be air, grease and moisture-tight if possible, on the one hand on the cooking space floor 4 and on the other hand on the surface of the glass ceramic plate 7 facing the cooking space 1 from.
  • the seal 10 is advantageously glued to the bottom 4 of the cooking space as well as to the glass ceramic plate 7 using a means suitable for this purpose. Between the glass ceramic plate 7 and the raised edge 6 'of the flange 6, a gap 11 is formed, which is covered by the seal 10, so that the glass ceramic plate 7 can carry out expansion movements unhindered. Below the glass ceramic plate 7 in the area of the so-called.
  • Coupling opening 5 for the microwave energy is a pot-like one Coupling housing 12 attached to the underside of the flange 6, the dimensions of which are adapted approximately to the coupling opening 5.
  • a magnetron 13 is provided in order to be able to generate microwave energy for the cooking space 1.
  • the microwaves (energy waves) generated by the magnetron 13 are radiated or guided through the glass ceramic plate 7 into the cooking chamber via an antenna 14 projecting into the coupling housing 12.
  • a cooling air blower 14 ′ is provided, to which a cooling air system 15 leading through the stove housing for cooling further electrical components 16 is connected.
  • the coupling housing 12 is expediently connected to the cooling air blower 14 ′ via a pressure line 17. This creates an overpressure relative to the pressure in the cooking space 1 in the coupling housing 12, which counteracts a possible penetration of contaminated gases or vapors through the sealing area of the glass ceramic plate 7 in the cooking space bottom 4 and prevents it from penetrating.
  • the best possible protection for the microwave energy generation and supply device against condensation precipitation is achieved.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Ovens (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Constitution Of High-Frequency Heating (AREA)
EP80106824A 1979-11-20 1980-11-06 Kombinierter Herd für Mikrowellen- und konventionellen Widerstands-Heizbetrieb Withdrawn EP0029179A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792946767 DE2946767A1 (de) 1979-11-20 1979-11-20 Kombinierter herd fuer mikrowellen- und konventionellen widerstands-heizbetrieb
DE2946767 1979-11-20

Publications (1)

Publication Number Publication Date
EP0029179A1 true EP0029179A1 (de) 1981-05-27

Family

ID=6086452

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80106824A Withdrawn EP0029179A1 (de) 1979-11-20 1980-11-06 Kombinierter Herd für Mikrowellen- und konventionellen Widerstands-Heizbetrieb

Country Status (5)

Country Link
US (1) US4351998A (enrdf_load_stackoverflow)
EP (1) EP0029179A1 (enrdf_load_stackoverflow)
DE (1) DE2946767A1 (enrdf_load_stackoverflow)
DK (1) DK469180A (enrdf_load_stackoverflow)
NO (1) NO803489L (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092346A1 (en) * 1982-04-09 1983-10-26 Fujitsu Limited Method and apparatus for heating a semiconductor substrate under reduced pressure
FR2585808A1 (fr) * 1985-08-03 1987-02-06 Licentia Gmbh Un four de cuisson-rotissoire
GB2179441A (en) * 1985-08-03 1987-03-04 Licentia Gmbh Cooking oven
ES2036446A2 (es) * 1991-05-20 1993-05-16 Fagor S Coop Ltda Horno combinado de microondas con grill oculto.

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3137758A1 (de) * 1981-09-23 1983-03-31 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Kombinierter herd fuer mikrowellen- und konventionellen widerstandsheizbetrieb
DE3224369A1 (de) * 1982-06-30 1984-01-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Kombinierter herd fuer mikrowellen- und konventionellen widerstands-heizbetrieb
SE451656B (sv) * 1986-02-11 1987-10-19 Alfastar Ab Anordning for uppvermning medelst mikrovagsenergi
JPH0237216A (ja) * 1988-07-26 1990-02-07 Toshiba Corp 高周波加熱装置
US5191183A (en) * 1991-02-21 1993-03-02 Ontario Hydro Apparatus for processing ceramics using microwave oven with resistance heating unit
KR100301902B1 (ko) * 1997-11-15 2001-11-22 구자홍 전자레인지의 마그네트론 장착구조
US8658953B2 (en) * 2003-07-07 2014-02-25 Turbochef Technologies, Inc. Antenna cover for microwave ovens

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2715655A1 (de) * 1976-07-06 1978-01-12 Litton Industries Inc Mikrowellenenergiezufuehrung fuer kombinierte kochherde
DE2850236A1 (de) * 1977-12-19 1979-08-09 Bosch Siemens Hausgeraete Mikrowellenofen
DE2849777A1 (de) * 1977-11-18 1979-09-13 Bosch Siemens Hausgeraete Hochfrequenz-heizgeraet

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1249130A (fr) * 1959-02-25 1960-12-23 Miwag Mikrowellen Ag Cuisinière électrique avec dispositif complémentaire à micro-ondes
US3276138A (en) * 1962-09-21 1966-10-04 Miwag Mikrowellen Ag Microwave drying apparatus
US3364331A (en) * 1965-02-17 1968-01-16 Westinghouse Electric Corp Energy distribution system
US3440385A (en) * 1965-10-13 1969-04-22 Microtherm Ltd Electronic ovens
US4121078A (en) * 1975-04-30 1978-10-17 Matsushita Electric Industrial Co., Ltd. Microwave heating apparatus
US4096369A (en) * 1975-11-20 1978-06-20 Matsushita Electric Industrial Co., Ltd. Microwave oven
DE2605699A1 (de) * 1976-02-13 1977-08-25 Witte & Co Stephan Mikrowellenherd
AU518080B2 (en) * 1977-11-25 1981-09-10 Raytheon Company Primary choke system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2715655A1 (de) * 1976-07-06 1978-01-12 Litton Industries Inc Mikrowellenenergiezufuehrung fuer kombinierte kochherde
DE2849777A1 (de) * 1977-11-18 1979-09-13 Bosch Siemens Hausgeraete Hochfrequenz-heizgeraet
DE2850236A1 (de) * 1977-12-19 1979-08-09 Bosch Siemens Hausgeraete Mikrowellenofen

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092346A1 (en) * 1982-04-09 1983-10-26 Fujitsu Limited Method and apparatus for heating a semiconductor substrate under reduced pressure
US4517026A (en) * 1982-04-09 1985-05-14 Fujitsu Limited Method of backside heating a semiconductor substrate in an evacuated chamber by directed microwaves for vacuum treating and heating a semiconductor substrate
FR2585808A1 (fr) * 1985-08-03 1987-02-06 Licentia Gmbh Un four de cuisson-rotissoire
GB2179441A (en) * 1985-08-03 1987-03-04 Licentia Gmbh Cooking oven
GB2179440A (en) * 1985-08-03 1987-03-04 Licentia Gmbh Baking and roasting oven
GB2179441B (en) * 1985-08-03 1990-01-04 Licentia Gmbh Oven
GB2179440B (en) * 1985-08-03 1990-01-04 Licentia Gmbh Baking and roasting oven
ES2036446A2 (es) * 1991-05-20 1993-05-16 Fagor S Coop Ltda Horno combinado de microondas con grill oculto.

Also Published As

Publication number Publication date
DE2946767A1 (de) 1981-06-11
US4351998A (en) 1982-09-28
DE2946767C2 (enrdf_load_stackoverflow) 1987-08-27
DK469180A (da) 1981-05-21
NO803489L (no) 1981-05-21

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Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH FR GB IT LU NL SE

17P Request for examination filed

Effective date: 19811026

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19830315

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KLAPPER, PETER

Inventor name: FLEISCHMANN, HERBERT

Inventor name: KEPPEL, HEINRICH