ATE91375T1 - METHOD AND APPARATUS FOR EQUALIZING THE HEATING OF FOOD IN A MICROWAVE ENERGY HEATED COOKING APPLIANCE. - Google Patents

METHOD AND APPARATUS FOR EQUALIZING THE HEATING OF FOOD IN A MICROWAVE ENERGY HEATED COOKING APPLIANCE.

Info

Publication number
ATE91375T1
ATE91375T1 AT87118985T AT87118985T ATE91375T1 AT E91375 T1 ATE91375 T1 AT E91375T1 AT 87118985 T AT87118985 T AT 87118985T AT 87118985 T AT87118985 T AT 87118985T AT E91375 T1 ATE91375 T1 AT E91375T1
Authority
AT
Austria
Prior art keywords
equalizing
food
heating
cooking appliance
microwave energy
Prior art date
Application number
AT87118985T
Other languages
German (de)
Inventor
Gerd Dr Naumann
Original Assignee
Juno Kuechentech Electrolux
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 Juno Kuechentech Electrolux filed Critical Juno Kuechentech Electrolux
Application granted granted Critical
Publication of ATE91375T1 publication Critical patent/ATE91375T1/en

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
    • H05B6/70—Feed lines
    • H05B6/707—Feed lines using waveguides
    • 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
    • H05B6/74—Mode transformers or mode stirrers
    • H05B6/745—Rotatable stirrers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Electric Ovens (AREA)
  • General Preparation And Processing Of Foods (AREA)

Abstract

The known methods for homogenising the field distribution in a cooking space heated by microwaves, such as rotating antennas, rotating plates and wave stirrers, are relatively expensive. The characteristic impedance is periodically changed by means of a rotating element (5) arranged in the waveguide (3) between the magnetron (1) and the injection aperture (6) into the cooking space (2). In this way, the output frequency of the magnetron is also changed, resulting in homogenisation of the field. <IMAGE>
AT87118985T 1987-02-03 1987-12-21 METHOD AND APPARATUS FOR EQUALIZING THE HEATING OF FOOD IN A MICROWAVE ENERGY HEATED COOKING APPLIANCE. ATE91375T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873703133 DE3703133A1 (en) 1987-02-03 1987-02-03 METHOD AND DEVICE FOR COMPARISONING THE HEATING OF FOOD IN A COOKER HEATED WITH MICROWAVE ENERGY
EP87118985A EP0277342B1 (en) 1987-02-03 1987-12-21 Method and device to homogenize the heating of food in a cooking oven heated by microwaves

Publications (1)

Publication Number Publication Date
ATE91375T1 true ATE91375T1 (en) 1993-07-15

Family

ID=6320098

Family Applications (1)

Application Number Title Priority Date Filing Date
AT87118985T ATE91375T1 (en) 1987-02-03 1987-12-21 METHOD AND APPARATUS FOR EQUALIZING THE HEATING OF FOOD IN A MICROWAVE ENERGY HEATED COOKING APPLIANCE.

Country Status (3)

Country Link
EP (1) EP0277342B1 (en)
AT (1) ATE91375T1 (en)
DE (2) DE3703133A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3818490A1 (en) * 1988-05-31 1989-12-07 Bosch Siemens Hausgeraete MICROWAVE HOUSEHOLD APPLIANCE
DE3843039A1 (en) * 1988-12-21 1990-06-28 Bosch Siemens Hausgeraete Domestic appliance
WO1997047161A2 (en) * 1996-06-03 1997-12-11 Matsushita Electric Industrial Co., Ltd. Microwave heating apparatus
EP2187702A1 (en) * 2008-11-17 2010-05-19 Topinox Sarl Cooking device with microwave heating

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2761942A (en) * 1952-06-06 1956-09-04 Raytheon Mfg Co Heating apparatus
GB752206A (en) * 1953-11-12 1956-07-04 Raytheon Mfg Co Improvements in or relating to high frequency dielectric heating apparatus
FR1208182A (en) * 1957-12-10 1960-02-22 Miwag Mikrowellen A G Device for generating a defined primary field distribution in a cavity for heating organic substances by means of microwave frequencies
CH393577A (en) * 1961-12-13 1965-06-15 Patelhold Patentverwertung Device for dielectric heating of materials
US3521019A (en) * 1968-02-19 1970-07-21 Varian Associates Microwave heating cavity with a venetian blind mode stirrer
SE345903B (en) * 1970-12-21 1972-06-12 Philips Svenska Ab
US4301347A (en) * 1980-08-14 1981-11-17 General Electric Company Feed system for microwave oven
US4336434A (en) * 1980-08-15 1982-06-22 General Electric Company Microwave oven cavity excitation system employing circularly polarized beam steering for uniformity of energy distribution and improved impedance matching

Also Published As

Publication number Publication date
EP0277342A3 (en) 1988-08-31
EP0277342B1 (en) 1993-07-07
EP0277342A2 (en) 1988-08-10
DE3703133A1 (en) 1988-08-11
DE3786451D1 (en) 1993-08-12

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