EP0357937A2 - Equipement ménager à micro-ondes - Google Patents

Equipement ménager à micro-ondes Download PDF

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Publication number
EP0357937A2
EP0357937A2 EP19890113881 EP89113881A EP0357937A2 EP 0357937 A2 EP0357937 A2 EP 0357937A2 EP 19890113881 EP19890113881 EP 19890113881 EP 89113881 A EP89113881 A EP 89113881A EP 0357937 A2 EP0357937 A2 EP 0357937A2
Authority
EP
European Patent Office
Prior art keywords
thawing
microwave
power
controller
household appliance
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Withdrawn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
EP19890113881
Other languages
German (de)
English (en)
Other versions
EP0357937A3 (fr
Inventor
Julius Dipl.-Ing. Husslein
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.)
BOSCH-SIEMENS HAUSGERAETE GMBH
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0357937A2 publication Critical patent/EP0357937A2/fr
Publication of EP0357937A3 publication Critical patent/EP0357937A3/fr
Withdrawn legal-status Critical Current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

Definitions

  • the invention relates to a microwave household appliance according to the preamble of claim 1.
  • the defrosting of frozen food in the microwave household appliance is part of the state of the art and is supported by various defrosting software.
  • Disadvantages for thawing in the microwave household appliance, especially for deep-frozen thawing goods, are on the one hand the maximum penetration depth associated with the microwave of 3 cm and on the other hand the recirculation mode, which is intended to prevent the condensation of the microwave cooking chamber.
  • Both processes favor the early thawing of the outer frozen food layers. Although the frozen food core is still frozen, this can lead to external pre-cooking and local burns. This unfavorable unevenness of the thawing process, which is disadvantageous for the thawing process, is dealt with by various measures which can be found in the prior art.
  • EP 00 66 632 proposes to avoid the disadvantages described with an additional defrosting box which is operated capacitively at frequencies around 20 MHz and is accommodated in the microwave device. In addition to additional costs and cooking space problems, there are also high-frequency problems that burden this solution.
  • the object of the invention is therefore to provide a solution that avoids the previous disadvantages of the microwave thawing process without additional high-frequency powers and using the cooking chamber customary in microwave domestic appliances.
  • the task is solved by the arrangement according to the invention while avoiding the supply of heat from the outside, the defrosted material being intermittently charged in a microwave-permeable but airtight heat insulation box in the non-ventilated cooking space by a selectable microwave defrosting power.
  • the thawing process is evened out by clocking the thawing rate and using the heat insulation box.
  • FIG. 1 the front view of a microwave domestic appliance 1 with a control panel 2, which is not detailed, and a cooking chamber 3 are shown as prior art.
  • the "defrost" function can be combined with different power levels.
  • the cooking space 3 of the microwave domestic appliance 1 can be seen, with a control 4 for a magnetron 5, the microwave energy generated by means of a waveguide 6 via a feed opening 7 to one located in the cooking space 3 Thermal insulation box 8, in which a thaw 9 is located.
  • the clocked supply of the thawing power to the thawing material 9 located in the heat insulation box 8 enables the thawing process to be evened out, since heat equalization can take place, promoted by the heat insulation box 8, which prevents the heat exchange with the cooking space air.
  • the outer layer of the thawed product is not overcooked or selectively burned by the thawing intervals, since in the 0 phase of the microwave power supplied, heat is exchanged with the core of the frozen food and the outer layer is cooled to the freezing point.
  • the microwave power phase following the 0 phase repeats the process. This procedure ensures even thawing even for larger quantities of thawed goods 9.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Ovens (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)
  • Constitution Of High-Frequency Heating (AREA)
EP19890113881 1988-09-07 1989-07-27 Equipement ménager à micro-ondes Withdrawn EP0357937A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883830431 DE3830431C1 (fr) 1988-09-07 1988-09-07
DE3830431 1988-09-07

Publications (2)

Publication Number Publication Date
EP0357937A2 true EP0357937A2 (fr) 1990-03-14
EP0357937A3 EP0357937A3 (fr) 1990-11-28

Family

ID=6362473

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890113881 Withdrawn EP0357937A3 (fr) 1988-09-07 1989-07-27 Equipement ménager à micro-ondes

Country Status (2)

Country Link
EP (1) EP0357937A3 (fr)
DE (1) DE3830431C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2447909B (en) * 2007-03-27 2012-02-15 Univ Bolton Life extension of stored food stuff

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4229972C2 (de) * 1992-09-08 2002-07-18 Miele & Cie Verfahren zum Auftauen von Lebensmitteln
FR2730893B1 (fr) * 1995-02-17 1997-04-25 Moulinex Sa Procede d'autodecongelation d'aliments places dans un four de cuisson
EP2061287B1 (fr) 2007-11-15 2015-03-25 Topinox Sarl Procédé destiné au réglage de la synchronisation d'un générateur à micro-ondes pulsé d'un appareil de cuisson et appareil de cuisson correspondant

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2479423A1 (fr) * 1980-04-01 1981-10-02 Esswein Sa Four a micro-ondes
EP0066632A1 (fr) * 1980-12-17 1982-12-15 Matsushita Electric Industrial Co., Ltd. Dispositif de cuisson thermique a micro-ondes
US4525615A (en) * 1984-01-16 1985-06-25 Amana Refrigeration, Inc. Method for microwave defrosting

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1935681C3 (de) * 1969-07-09 1974-11-28 Microwave Furnace & Kiln Consultants Inc., Centerport, N.Y. (V.St.A.) Verfahren und Vorrichtung zum Erhitzen von dielektrischen Gegenständen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2479423A1 (fr) * 1980-04-01 1981-10-02 Esswein Sa Four a micro-ondes
EP0066632A1 (fr) * 1980-12-17 1982-12-15 Matsushita Electric Industrial Co., Ltd. Dispositif de cuisson thermique a micro-ondes
US4525615A (en) * 1984-01-16 1985-06-25 Amana Refrigeration, Inc. Method for microwave defrosting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2447909B (en) * 2007-03-27 2012-02-15 Univ Bolton Life extension of stored food stuff

Also Published As

Publication number Publication date
DE3830431C1 (fr) 1990-03-29
EP0357937A3 (fr) 1990-11-28

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