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EP0595083B1 - Haushaltsofen - Google Patents

Haushaltsofen Download PDF

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Publication number
EP0595083B1
EP0595083B1 EP19930116161 EP93116161A EP0595083B1 EP 0595083 B1 EP0595083 B1 EP 0595083B1 EP 19930116161 EP19930116161 EP 19930116161 EP 93116161 A EP93116161 A EP 93116161A EP 0595083 B1 EP0595083 B1 EP 0595083B1
Authority
EP
European Patent Office
Prior art keywords
grill
oven
fan
cooking mode
cooking
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
EP19930116161
Other languages
English (en)
French (fr)
Other versions
EP0595083A2 (de
EP0595083A3 (en
Inventor
Michel Moulinex S.A. De Matteis
Eric Moulinex S.A. Lemaitre
Jean-Christophe Moulinex S.A. Mange
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.)
Moulinex SA
Original Assignee
Moulinex 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 Moulinex SA filed Critical Moulinex SA
Publication of EP0595083A2 publication Critical patent/EP0595083A2/de
Publication of EP0595083A3 publication Critical patent/EP0595083A3/fr
Application granted granted Critical
Publication of EP0595083B1 publication Critical patent/EP0595083B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/087—Arrangement or mounting of control or safety devices of electric circuits regulating heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/32—Arrangements of ducts for hot gases, e.g. in or around baking ovens
    • F24C15/322—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation
    • F24C15/325—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation electrically-heated

Definitions

  • the present invention relates to a cooking oven, in particular for domestic use, of the type comprising a cooking enclosure having, on one of its side walls, a double wall delimiting a compartment inside which is mounted a circulation fan of air, the internal wall of the double wall having, at its lower part, at least one so-called air suction opening opposite which the fan is arranged and, at its upper part, at least one so-called discharge opening of air, as well as an electric heating resistance of the grill arranged in the enclosure, outside the compartment and facing the air discharge opening, and acting both as a broiler resistance when the oven is used in grill cooking mode for which the fan is inactive and heating resistance ventilated by the air circulation created by the fan when the oven is used in cooking mode n by forced convection.
  • the invention proposes to solve this simple radiation problem of the grill in a simple and effective manner when it is used in forced convection cooking mode.
  • the cooking oven according to the invention of the type recalled above, which is characterized in that it furthermore comprises means making it possible to reduce the power absorbed by the grill resistance only when the oven is used in forced convection cooking mode, these power reduction means being constituted by an additional electric heating resistor connected in series with the grill resistor by means of an electrical switching device, having a power consumption significantly lower than that of the grill resistor, and which is arranged in the enclosure, at the outside the compartment, being located at the same level as said grill resistance.
  • the temperature of the grill resistance is thus lower in forced convection cooking mode than in grill cooking mode, and the exchange surface between the grill resistance and the ventilated air is increased, which reduces the temperature rise time of the oven.
  • the cooking oven in particular for domestic use, comprises a cooking enclosure or cavity 1 of generally parallelepiped shape which, of course, is closed by a door (not shown) during the cooking.
  • the enclosure 1 has, at its rear part, a double rear wall 2a and 2b delimiting a closed compartment 3 of rectangular cross section. Inside this compartment 3, in the vicinity of the floor 2c of the enclosure, is mounted an air circulation fan 4 driven in rotation by an electric motor 5 and placed in look of air suction openings 6 formed in the internal wall 2b of the enclosure. This same internal wall 2b of the enclosure is also provided with air delivery openings 7 located near the vault 2d of the enclosure.
  • the compartment 3 of the cooking enclosure 1 also contains a thermostatic device (not shown) known per se for controlling the interior temperature of the enclosure.
  • a grill heating element 8 is mounted at the top of the enclosure 1 parallel to its vault 2d, outside of its compartment 3, that is to say in the cooking chamber 9 proper, and opposite air discharge openings 7.
  • This grill resistance 8 is intended to fulfill a double function, namely that of the grill itself when the oven is used in grill cooking mode for which the fan is not in operation, and that of air heating. ventilated under the action of the fan 4 to ensure an even distribution of heat throughout the volume of the cooking chamber 9 when the oven is used in forced convection cooking mode.
  • an additional electric heating resistor 10 intended to be used only when the oven operates by forced convection, is connected in series with the grill resistor 8 (Figure 3) while being disposed in the enclosure outside. from its compartment 3 and at the same level as the grill element 8 ( Figure 2).
  • This additional resistance 10 is chosen so as to develop, in forced convection cooking mode, a power significantly lower than that of the grill resistance 8.
  • the additional resistor 10 develops a power of the order of 100 watts.
  • the additional resistance 10 can be housed inside the compartment 3 so as to be used only as a contribution in temperature and not as a contribution in temperature and radiation.
  • connection mode of the two electrical resistors 8 and 10 results from the simplified diagram of FIG. 3, in which we see that these two resistors are each associated with a switch contact 11, respectively 12, of a device electrical switching 13; the fan 4 is connected in parallel to the additional resistor 10.
  • the selective opening or closing of the contacts 11 and 12 is effected by a single control button (not illustrated) located on the control panel of the oven.
  • the entire assembly is intended to be connected via its terminals 14 and 15 to a voltage source, for example 230 volts.
  • the contacts 11 and 12 are respectively in the closed and open position, so that only the grill element 8 is energized and therefore fulfills its conventional broiler function.
  • the contacts 11 and 12 are respectively in the open and closed position, so that the two resistors in series 8 and 10, as well as the fan 4, are energized.
  • the air from the cooking chamber 9 is sucked in by the fan 4, inside the compartment 3 of the enclosure via the openings 6, and is then projected onto the two resistors in series 8 and 10 via the openings 7 (see arrows F in FIG. 2) so as to heat the air in the cooking chamber 9.
  • the additional resistance 10 therefore reduces the power absorbed by the grill element 8, so that the latter radiates more weakly.
  • baking oven according to the invention described above can also use a additional heating by microwave, without departing from the scope of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Ovens (AREA)
  • Electric Stoves And Ranges (AREA)

Claims (2)

  1. Haushaltsofen mit einem Kochraum (1), der an einer seiner Seitenwände eine Doppelwand (2a, 2b) aufweist, deren Wände ein Abteil (3) begrenzen, in welchem ein Ventilator (4) zur Luftzirkulation angeordnet ist, wobei die Innenwand (2b) der Doppelwand in ihrem unteren Bereich mindestens eine Öffnung (6) zum Ansaugen der Luft, gegenüber welcher der Ventilator (4) angeordnet ist, und in ihrem oberen Bereich mindestens eine Öffnung (7) zum Abgeben der Luft aufweist, sowie mit einem im Kochraum außerhalb des Abteils (3) und gegenüber der Luft-Abgabeöffnung (7) angeordneten elektrischen Grill-Heizwiderstand (8), der sowohl als Grillheizelement dient, wenn der Ofen im Grillmodus verwendet wird, wobei der Ventilator ausgeschaltet ist, als auch als Heizelement dient, das von dem vom Ventilator erzeugten Luftstrom umströmt wird, wenn der Ofen im Umluftmodus verwendet wird, dadurch gekennzeichnet, daß er weiterhin ein Element aufweist, das die vom Grillheizelement (8) aufgenommene Leistung nur dann verrringert, wenn der Ofen im Umluftmodus verwendet wird, wobei dieses Element zur Leistungsverringerung durch ein zusätzliches elektrisches Heizelement (10) gebildet ist, das mit dem Grillheizelement (8) durch eine elektrische Umschaltvorrichtung (13) in Reihe geschaltet ist und eine erheblich geringere Aufnahmeleistung aufweist als das Grillheizelement und das im Kochraum (1) außerhalb des Abteils (3) in gleicher Höhe wie das Grillheizelement (8) angeordnet ist.
  2. Ofen nach Anspruch 1, dadurch gekennzeichnet, daß die elektrische Umschaltvorrichtung (13) mindestens zwei Schaltkontakte (11, 12) aufweist, die parallel angeordnet sind und so betätigbar sind, daß sie einerseits nur das Grillheizelement (8), wenn der Ofen im Grillmodus verwendet wird, und andererseits die Reihenschaltung des zusätzlichen Heizelements (10) und des Grillheizelements (8) unter Spannung setzen, wenn der Ofen im Umluftmodus verwendet wird, wobei der Ventilator (4) parallel zum zusätzlichen Heizelement (10) geschaltet ist.
EP19930116161 1992-10-26 1993-10-06 Haushaltsofen Expired - Lifetime EP0595083B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9212758 1992-10-26
FR9212758A FR2697321B1 (fr) 1992-10-26 1992-10-26 Four électrique de cuisson domestique par gril ou par convection forcée.

Publications (3)

Publication Number Publication Date
EP0595083A2 EP0595083A2 (de) 1994-05-04
EP0595083A3 EP0595083A3 (en) 1994-06-15
EP0595083B1 true EP0595083B1 (de) 1997-12-10

Family

ID=9434867

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930116161 Expired - Lifetime EP0595083B1 (de) 1992-10-26 1993-10-06 Haushaltsofen

Country Status (4)

Country Link
EP (1) EP0595083B1 (de)
DE (1) DE69315668T2 (de)
ES (1) ES2111686T3 (de)
FR (1) FR2697321B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4406155A1 (de) * 1994-02-25 1995-08-31 Licentia Gmbh Elektrischer Back- und Bratofen
KR100399130B1 (ko) * 1999-11-17 2003-09-26 삼성전자주식회사 전자렌지
EP3009748A3 (de) * 2015-09-11 2016-05-25 V-Zug AG Backofen mit rückwärtige kammer zum heissluftumlauf
US11885506B2 (en) 2020-11-30 2024-01-30 Whirlpool Corporation Air convection smart diffusion system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2159285A1 (de) * 1971-11-30 1973-06-07 Miele & Cie Backofenheizung mit einem grill-heizkoerper und mit einem oberhitzeheizkoerper
FR2519413B1 (fr) * 1982-01-06 1987-05-22 Dietrich & Cie De Four electrique de cuisson domestique
GB8609937D0 (en) * 1986-04-23 1986-05-29 Microwave Ovens Ltd Microwave ovens

Also Published As

Publication number Publication date
FR2697321A1 (fr) 1994-04-29
FR2697321B1 (fr) 1997-04-25
DE69315668T2 (de) 1998-04-09
ES2111686T3 (es) 1998-03-16
EP0595083A2 (de) 1994-05-04
EP0595083A3 (en) 1994-06-15
DE69315668D1 (de) 1998-01-22

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