EP1324635A2 - Système de four à micro-ondes - Google Patents

Système de four à micro-ondes Download PDF

Info

Publication number
EP1324635A2
EP1324635A2 EP02027914A EP02027914A EP1324635A2 EP 1324635 A2 EP1324635 A2 EP 1324635A2 EP 02027914 A EP02027914 A EP 02027914A EP 02027914 A EP02027914 A EP 02027914A EP 1324635 A2 EP1324635 A2 EP 1324635A2
Authority
EP
European Patent Office
Prior art keywords
magnetron
magnetrons
microwave oven
operating frequency
microwave
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.)
Granted
Application number
EP02027914A
Other languages
German (de)
English (en)
Other versions
EP1324635B1 (fr
EP1324635A3 (fr
Inventor
Horst Linn
Jürgen Suhm
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.)
Linn High Therm GmbH
Original Assignee
Linn High Term GmbH
Linn High Therm 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 Linn High Term GmbH, Linn High Therm GmbH filed Critical Linn High Term GmbH
Publication of EP1324635A2 publication Critical patent/EP1324635A2/fr
Publication of EP1324635A3 publication Critical patent/EP1324635A3/fr
Application granted granted Critical
Publication of EP1324635B1 publication Critical patent/EP1324635B1/fr
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
    • H05B6/80—Apparatus for specific applications

Definitions

  • the invention relates to a microwave oven system with at least one Magnetron, the certain electrical operating parameters, such as anode voltage, Heating voltage, heating current, and with a power supply for the least a magnetron.
  • Microwave ovens which are used as chamber ovens, are usually used as continuous ovens or the like. are formed with at least one magnetron or with a number Magnetrons operated a certain operating frequency. This is usually 2.45 GHz.
  • the operating frequency can also be 915 MHz, for example be.
  • the electrical field strength E of the microwave field, the operating frequency f, the loss angle tan ⁇ and the relative dielectric constant ⁇ are decisive for the heat output generated in a volume element of a good to be heated in a microwave oven.
  • the following applies to the volume power density P: P 2 ⁇ f ⁇ ⁇ ⁇ tan ⁇ ⁇ E 2 ,
  • the volume power density is therefore at the operating frequency of the at least one Magnetrons of the microwave oven proportional.
  • DE-GM 1 818 464 describes a continuous microwave oven with a High-frequency closed, elongated work area and a conveyor belt extending through the work area for the material to be treated during transport through the continuous furnace successively different microwave fields of different frequencies passes.
  • This is a continuous furnace, which in Transport direction of the material to be treated is provided with magnetrons, which have different operating frequencies.
  • US-A 3 494 722 discloses a method and apparatus for sterilizing by means of microwave radiation.
  • the microwave radiation can be a Show wavelength in the range between 0.9 and 17 GHz.
  • US-A 4 746 968 describes a device for drying a good With the help of microwave radiation combined with infrared radiation.
  • microwave radiation has an operating frequency of 2.54 GHz or from 915 MHz.
  • the respective Magnetron a specific operating frequency to the desired one To achieve thermal performance.
  • the invention has for its object a microwave oven system to create the type mentioned, in which it is very easily possible, the Change the heat output as desired, without it being necessary to Microwave oven or on the periphery of the same, such as the associated power supply, having to make major electrical and / or mechanical changes.
  • This task is carried out in a microwave oven system of the type mentioned solved according to the invention in that the at least one magnetron one determined operating frequency by a magnetron of another Operating frequency is replaceable, the magnetrons of the different Operating frequencies with the same or at least similar mechanical Mounting dimensions are formed and the power supply without changing the electrical operating parameters for the different magnetrons of the different operating frequencies can be used unchanged. If necessary, minor changes may be necessary, with the essential components such as heating and high voltage transformer unchanged to be kept.
  • a Magnetron of operating frequency 2.45 GHz using a magnetron and launcher the operating frequency to replace 915 MHz or 5.8 GHz, respectively to achieve the desired heat output.
  • the respective magnetron is required and launcher just removed from the microwave oven and through each desired other magnetron to be replaced. Since the magnetrons with the different operating frequencies the same mechanical Have assembly dimensions, the exchange of a magnetron is one certain operating frequency by a magnetron of another certain Operating frequency easy and time-saving possible.
  • the invention Microwave oven system thus has the advantage, for example, that one existing microwave oven with magnetrons, for example the Operating frequency 2.45 GHz these magnetrons through magnetrons Operating frequency 5.8 GHz can be replaced.
  • the at least one magnetron on corresponding microwave oven directly, i.e. without further microwave coupling device is provided.
  • at least one magnetron with one Coupling device combined then it has with the invention Microwave oven system proved to be useful when the magnetrons of different operating frequencies, each with associated microwave coupling devices are combined. That means that when you exchange one Unit consisting of a magnetron of a certain operating frequency and the associated microwave coupling device, this unit from Microwave oven removed and another unit from another magnetron mounted on the microwave oven with the associated microwave coupling device can be. This is easy and time-saving.
  • the figure shows sections of a microwave oven 10, at least one Magnetron 12 is provided.
  • the microwave oven 10 is for example a chamber furnace or a continuous furnace - but without to be limited to this.
  • the magnetron 12 has a power supply unit 14 connected. This is indicated by the angled arrow line 16.
  • the magnetron 12 has certain electrical operating parameters. in this connection it is, for example, the anode voltage of the magnetron 12, its Heating voltage and its heating current.
  • the anode voltage is 4 kV, the heating voltage 3.3 V and the heating current 10.5 A.
  • the magnetron 12 points e.g. a power of 800 W.
  • the magnetron 12 has a certain operating frequency.
  • the microwave oven system according to the invention has magnetrons 12 different operating frequencies the same mechanical Mounting dimensions. That is in the drawing figure by the double arrow 18 indicated.
  • the magnetrons 12 of the different Operating frequencies each have the same electrical operating parameters as Anode voltage, heating voltage and heating current so that the magnetrons 12 the different operating frequencies with one and the same power supply 14 can be operated, or only minor changes are required can be compensated for with just a few components.
  • the magnetron 12 is the one defined Operating frequency combined with a microwave coupling device 20.
  • a microwave coupling device 20 there forms the respective magnetron 12 of a certain operating frequency and the thus combined microwave coupling device 20 a unit, whereby it understands that the microwave coupling devices 20 of the magnetrons 12 of the different operating frequencies correspondingly differently dimensioned are.
  • the mechanical dimensions 18 of the respective magnetron unit 12 and microwave coupling device 20 are, however, for the different Magnetrons 12 of the different operating frequencies are the same.
  • microwave oven system according to the invention is therefore both under the Aspect of a desired change in performance as well as under the In terms of optimal retrofitting advantageous.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Constitution Of High-Frequency Heating (AREA)
EP02027914A 2001-12-28 2002-12-13 Système de four à micro-ondes Expired - Lifetime EP1324635B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10164299A DE10164299A1 (de) 2001-12-28 2001-12-28 Mikrowellenofensystem
DE10164299 2001-12-28

Publications (3)

Publication Number Publication Date
EP1324635A2 true EP1324635A2 (fr) 2003-07-02
EP1324635A3 EP1324635A3 (fr) 2005-09-14
EP1324635B1 EP1324635B1 (fr) 2008-04-23

Family

ID=7711062

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02027914A Expired - Lifetime EP1324635B1 (fr) 2001-12-28 2002-12-13 Système de four à micro-ondes

Country Status (4)

Country Link
US (1) US6649892B2 (fr)
EP (1) EP1324635B1 (fr)
AT (1) ATE393564T1 (fr)
DE (2) DE10164299A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006073909A2 (fr) * 2005-01-03 2006-07-13 Mackay Jeffrey H Tunnel pour le conditionnement de produits, en particulier la sterilisation d'aliments dans des contenants preemballes
KR20080080113A (ko) * 2005-11-11 2008-09-02 디에스지 테크놀로지스 열처리 시스템, 열처리 부품 및 열처리 방법
US9191999B2 (en) * 2009-09-01 2015-11-17 Manitowoc Foodservice Companies, Llc Method and apparatus for venting a cooking device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1818464U (de) * 1960-07-04 1960-09-22 Mikrowellen Ges M B H Deutsche Mikrowellen-durchlaufofen.
GB2035676A (en) * 1978-11-30 1980-06-18 English Electric Vale Co Ltd Frequency agile magnetron arrangement
US5804801A (en) * 1994-03-31 1998-09-08 Lambda Technologies, Inc. Adhesive bonding using variable frequency microwave energy

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3494722A (en) * 1967-06-28 1970-02-10 Gray Ind Inc Method and apparatus for sterilizing
US3934566A (en) * 1974-08-12 1976-01-27 Ward Michael A V Combustion in an internal combustion engine
US4746968A (en) * 1987-03-30 1988-05-24 Mcdonnell Douglas Corporation Combined microwave and thermal drying apparatus
DE4328086A1 (de) * 1993-08-20 1995-02-23 Bosch Siemens Hausgeraete Anordnung zur Durchführung eines Trocknungsverfahrens
DE29517499U1 (de) * 1995-11-04 1997-03-13 Battelle Ingenieurtechnik GmbH, 65760 Eschborn Vorrichtung zur Behandlung von Substanzen mit elektromagnetischer Hochfrequenzenergie

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1818464U (de) * 1960-07-04 1960-09-22 Mikrowellen Ges M B H Deutsche Mikrowellen-durchlaufofen.
GB2035676A (en) * 1978-11-30 1980-06-18 English Electric Vale Co Ltd Frequency agile magnetron arrangement
US5804801A (en) * 1994-03-31 1998-09-08 Lambda Technologies, Inc. Adhesive bonding using variable frequency microwave energy

Also Published As

Publication number Publication date
US20030121914A1 (en) 2003-07-03
ATE393564T1 (de) 2008-05-15
DE50212140D1 (de) 2008-06-05
DE10164299A1 (de) 2003-07-17
EP1324635B1 (fr) 2008-04-23
US6649892B2 (en) 2003-11-18
EP1324635A3 (fr) 2005-09-14

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