EP0443330A2 - Baking oven - Google Patents

Baking oven Download PDF

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Publication number
EP0443330A2
EP0443330A2 EP19910100678 EP91100678A EP0443330A2 EP 0443330 A2 EP0443330 A2 EP 0443330A2 EP 19910100678 EP19910100678 EP 19910100678 EP 91100678 A EP91100678 A EP 91100678A EP 0443330 A2 EP0443330 A2 EP 0443330A2
Authority
EP
European Patent Office
Prior art keywords
fan
hole group
oven
baking oven
rear wall
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.)
Ceased
Application number
EP19910100678
Other languages
German (de)
French (fr)
Other versions
EP0443330A3 (en
Inventor
Rolf Dipl.-Ing. Salentin
Herbert Nachlinger
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 EP0443330A2 publication Critical patent/EP0443330A2/en
Publication of EP0443330A3 publication Critical patent/EP0443330A3/en
Ceased 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
    • H05B6/647—Aspects related to microwave heating combined with other heating techniques
    • H05B6/6473—Aspects related to microwave heating combined with other heating techniques combined with convection heating
    • 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 innovation relates to an oven which is aligned with a high-frequency heating device and / or a thermal heating device, a vapor opening being provided on an upper muffle wall.
  • Thermal heating devices which are designed as hot air or circulating air heating, consist of a radiator and an associated blower.
  • a circulating air blower is arranged behind an air baffle in the interior of the oven, which has a central suction opening and blow-out openings for circulating the hot air inside the oven.
  • the air circulation fan is surrounded by an air heater.
  • the temperature sensor of a temperature controller that controls the radiators is located in the baking chamber. If this proposed arrangement is to be carried out in a microwave-proof manner, then the effort for the passage point of the forced-air fan in the oven rear wall means to drive.
  • a hot air heater has become known from EP-O 245 617, which has symmetrical suction and blow-out hole patterns in the central rear fan position in the oven rear wall.
  • the hot air heating chamber extends over the entire back wall of the oven.
  • the task of the innovation is therefore to create a thermal heating device, whereby a good temperature uniformity is achieved and the oven is microwave-tight.
  • the arrangement according to the invention for solving this problem is characterized in that the hot-air heating system consisting of a radiator and a fan is arranged in a hot-air housing which is located outside the oven muffle on the rear wall of the oven and encloses the fan and the heating system, and in that is provided by the hot-air housing certain area of the oven back wall has asymmetrically arranged hole group patterns for top heat, bottom heat and the suction hole group for the fan.
  • the thermal heating device which is designed as a hot air heater, consists of a radiator 1, a hole group for top heat 2 and a hole group for bottom heat 3, a fan 4, a fan drive 5 belonging to fan 4 and a fan wheel belonging to fan 4, a hot air housing 7 and an oven rear wall 8.
  • the radiator 1 which extends over one half of the oven rear wall 8, is arranged behind the hole group for top heat 2 and the hole group for bottom heat 3.
  • the fan 4 which draws in preheated cooking space air via air intake openings, is in the half next to the radiator 1 Oven rear wall 8, at the level of the hole group for top heat 2, attached.
  • This arrangement of heating element 1 and fan 4 according to FIG. 1 is also conceivable as a mirror image of the selected embodiment.
  • the hot air housing 7 enclosing the heater 1 and the fan 4 advantageously enables the air radially blown off by the fan 4 to be led to the heater 1 with a uniform intensity, in that the oven rear wall 8 has a hole group pattern for the intake air of the hot air blower, the If the fan 4 is arranged off-center in the upper half of the oven rear wall 8, the top heat and bottom heat can enter the cooking chamber in a directed manner. Since the central region of the oven rear wall 8 has no hot air outlet, a temperature equalization in the cooking chamber is achieved with a reduced circulation effect of the feeds Hot air. A direct supply of hot air to larger areas of the food is avoided if the food is placed in the center of the cooking space. As a result of the design of the hole group pattern for top heat 2, bottom heat 3 and the intake air of fan 4, the cooking space is microwave-tight.
  • the microwave tightness of the cooking space is achieved more easily than the fact that no structural arrangements have to be guided through the oven rear wall 8 than is possible with fan-operated axles in the cooking space.
  • the hot air housing arranged behind the hole group patterns supports the microwave tightness of the overall arrangement
  • the fan arrangement and the arrangement of the hot air housing 7 can be seen in section B-A.
  • the arrangement of the fan depends on the design of the fan drive 5. With the principle of the hot-air housing design according to FIG. 1, a good yield of the hot-air heating can be achieved analogously for each fan arrangement.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Ovens (AREA)

Abstract

The baking oven is equipped with a thermal heating device which is a hot-air heating system, it being possible to arrange in combination therewith a microwave heating device, characterised in that the hot-air heating system, which consists of a heating member (1) and a fan (4), is arranged in a hot-air housing (7) which is situated outside the baking oven muffle on the baking oven rear wall (8) and surrounds the fan (4) and the heating system (1), and in that the surface portion of the baking oven rear wall (8) defined by the hot-air housing (7) has asymmetrically arranged hole group patterns for upper heating (2), lower heating (3) and the suction hole group for the fan (4). <IMAGE>

Description

Die Neuerung bezieht sich auf einen Backofen, der mit einer Hochfrequenz-Heizeinrichtung und/oder einer thermischen Heizeinrichtung ausgerichtet ist, wobei an einer obenliegenden Muffelwand eine Wrasenöffnung vorgesehen ist.The innovation relates to an oven which is aligned with a high-frequency heating device and / or a thermal heating device, a vapor opening being provided on an upper muffle wall.

Thermische Heizeinrichtungen, die als Heißluft- oder Umluftheizung ausgeführt sind, bestehen aus einem Heizkörper und einem dazugehörigen Gebläse. Eine solche Anordnung ist durch die DE-PS 34 42 812.7 bekannt geworden. Dabei ist hinter einem Luftleitblech im Innern des Backofens ein Umluftgebläse angeordnet, das eine zentrale Ansaugöffnung sowie Ausblasöffnungen besitzt für die Umwälzung der Heißluft im Inneren des Backofens. Das Umluftgebläse ist umgeben von einem Luftheizkörper. Im Backraum befindet sich der Temperaturfühler eines die Heizkörper regelnden Temperaturreglers. Soll diese vorgeschlagene Anordnung mikrowellendicht ausgeführt werden, so bedeutet das Aufwand für die Durchführungsstelle des Umluftgebläses in der Backofen-Rückwand zu treiben.Thermal heating devices, which are designed as hot air or circulating air heating, consist of a radiator and an associated blower. Such an arrangement is known from DE-PS 34 42 812.7. In this case, a circulating air blower is arranged behind an air baffle in the interior of the oven, which has a central suction opening and blow-out openings for circulating the hot air inside the oven. The air circulation fan is surrounded by an air heater. The temperature sensor of a temperature controller that controls the radiators is located in the baking chamber. If this proposed arrangement is to be carried out in a microwave-proof manner, then the effort for the passage point of the forced-air fan in the oven rear wall means to drive.

Durch die EP-O 245 617 ist eine Heißluftheizung bekanntgeworden, die bei zentraler Lüfterlage in der Backofen-Rückwand symmetrische Ansaug- und Ausblas-Lochmuster besitzt. Dabei erstreckt sich die Heißluft-Heizungskammer über die gesamte Backofen-Rückwand.A hot air heater has become known from EP-O 245 617, which has symmetrical suction and blow-out hole patterns in the central rear fan position in the oven rear wall. The hot air heating chamber extends over the entire back wall of the oven.

Die Aufgabe der Neuerung besteht daher darin, eine thermische Heizeinrichtung zu schaffen, wodurch eine gute Temperaturvergleichmäßigung erreicht wird und Mikrowellendichtheit des Garraums gegeben ist.The task of the innovation is therefore to create a thermal heating device, whereby a good temperature uniformity is achieved and the oven is microwave-tight.

Die erfindungsgemäße Anordnung zur Lösung dieser Aufgabe ist dadurch gekennzeichnet, daß die aus einem Heizkörper und einem Lüfter bestehende Heißluftheizung in einem außerhalb der Backofen-Muffel an der Backofen-Rückwand befindlichen, den Lüfter und die Heizung umschließenden Heißluftgehäuse angeordnet ist und daß der durch das Heißluftgehäuse bestimmte Flächenanteil der Backofen-Rückwand asymmetrisch angeordnete Lochgruppenmuster für Oberhitze, Unterhitze und die Ansaug-Lochgruppe für den Lüfter besitzt.The arrangement according to the invention for solving this problem is characterized in that the hot-air heating system consisting of a radiator and a fan is arranged in a hot-air housing which is located outside the oven muffle on the rear wall of the oven and encloses the fan and the heating system, and in that is provided by the hot-air housing certain area of the oven back wall has asymmetrically arranged hole group patterns for top heat, bottom heat and the suction hole group for the fan.

Weitere vorteilhafte Ausgestaltungen der Neuerung sind in den Unteransprüchen enthalten.Further advantageous refinements of the innovation are contained in the subclaims.

Ein Ausführungsbeispiel nach der Neuerung ist im folgenden anhand der Zeichnung näher beschrieben. Es zeigt:

Fig. 1
eine Anordnung eines Heißluftgebläses außerhalb es Backofens an der Backofen-Rückwand,
Fig. 2
eine zu Fig. 1 gehörige Schnittfigur.
An embodiment according to the innovation is described below with reference to the drawing. It shows:
Fig. 1
an arrangement of a hot air blower outside the oven on the rear wall of the oven,
Fig. 2
a sectional figure belonging to FIG. 1.

Die thermische Heizeinrichtung, die als Heißluftheizung ausgeführt ist, besteht aus einem Heizkörper 1, einer Lochgruppe für Oberhitze 2 und einer Lochgruppe für Unterhitze 3, einem Lüfter 4, einem zum Lüfter 4 zugehörigen Lüfterantrieb 5 und eine zum Lüfter 4 zugehörigen Lüfterrad, einem Heißluftgehäuse 7 und einer Backofen-Rückwand 8.The thermal heating device, which is designed as a hot air heater, consists of a radiator 1, a hole group for top heat 2 and a hole group for bottom heat 3, a fan 4, a fan drive 5 belonging to fan 4 and a fan wheel belonging to fan 4, a hot air housing 7 and an oven rear wall 8.

Gemäß Fig. 1 ist der Heizkörper 1, der sich über eine Hälfte der Backofen-Rückwand 8 erstreckt, hinter der Lochgruppe für Oberhitze 2 und der Lochgruppe für Unterhitze 3 angeordnet. Der Lüfter 4, der über Luftansaugöffnungen vorgewärmte Garraumluft ansaugt, ist in der neben dem Heizkörper 1 befindlichen Hälfte der Backofen-Rückwand 8, in Höhe der Lochgruppe für Oberhitze 2, befestigt. Diese Anordnung von Heizkörper 1 und Lüfter 4 gemäß Fig. 1 ist ebenso spiegelbildlich zur gewählten Ausführung denkbar. Das die Heizung 1 und den Lüfter 4 umschließende Heißluftgehäuse 7 ermöglicht es in vorteilhafterweise die vom Lüfter 4 radial abgeblasene Luft mit vergleichmäßigter Intensität auf die Heizung 1 zu führen Dadurch, daß die Backofen-Rückwand 8 ein Lochgruppenmuster für die Ansaugluft des Heißluftgebläses besitzt, wobei der Lüfter 4 außermittig in der oberen Hälfte der Backofen-Rückwand 8 angeordnet ist, kann die Oberhitze und Unterhitze gerichtet in den Garraum gelangen Da der mittige Bereich der Backofen-Rückwand 8 keinen Heißluftaustritt besitzt, wird eine Temperaturvergleichmäßigung im Garraum erreicht mit einem reduzierten Umwälzeffekt der eingespeisten Heißluft. Eine direkte Heißluftzufuhr auf größere Gargutflächen wird dadurch vermieden, sofern man das Gargut mittig im Garraum plaziert. Infolge der konstruktiven Ausbildung der Lochgruppenmuster für Oberhitze 2, Unterhitze 3 und die Ansaugluft des Lüfters 4 ist der Garraum mikrowellendicht.1, the radiator 1, which extends over one half of the oven rear wall 8, is arranged behind the hole group for top heat 2 and the hole group for bottom heat 3. The fan 4, which draws in preheated cooking space air via air intake openings, is in the half next to the radiator 1 Oven rear wall 8, at the level of the hole group for top heat 2, attached. This arrangement of heating element 1 and fan 4 according to FIG. 1 is also conceivable as a mirror image of the selected embodiment. The hot air housing 7 enclosing the heater 1 and the fan 4 advantageously enables the air radially blown off by the fan 4 to be led to the heater 1 with a uniform intensity, in that the oven rear wall 8 has a hole group pattern for the intake air of the hot air blower, the If the fan 4 is arranged off-center in the upper half of the oven rear wall 8, the top heat and bottom heat can enter the cooking chamber in a directed manner. Since the central region of the oven rear wall 8 has no hot air outlet, a temperature equalization in the cooking chamber is achieved with a reduced circulation effect of the feeds Hot air. A direct supply of hot air to larger areas of the food is avoided if the food is placed in the center of the cooking space. As a result of the design of the hole group pattern for top heat 2, bottom heat 3 and the intake air of fan 4, the cooking space is microwave-tight.

Die Mikrowellendichtheit des Garraumes wird dadurch, daß keine konstruktiven Anordnungen durch die Backofen-Rückwand 8 geführt werden müssen, leichter erreicht als es bei Achsdurchführungen im Garraum betriebener Lüfter möglich ist. Das hinter den Lochgruppenmustern angeordnete Heißluftgehäuse unterstützt die Mikrowellendichtheit der GesamtanordnungThe microwave tightness of the cooking space is achieved more easily than the fact that no structural arrangements have to be guided through the oven rear wall 8 than is possible with fan-operated axles in the cooking space. The hot air housing arranged behind the hole group patterns supports the microwave tightness of the overall arrangement

Gemäß Fig. 2 ist im Schnitt B-A die Lüfteranordnung und die Anordnung des Heißluftgehäuses 7 erkennbar. Die Anordnung des Lüfters ist abhängig von der konstruktiven Wahl des Lüfterantriebes 5. Mit dem Prinzip der Heißluftgehäuse-Ausführung nach Fig. 1 ist analog für jede Lüfteranordnung eine gute Ausbeute der Heißluftheizung erreichbar.2, the fan arrangement and the arrangement of the hot air housing 7 can be seen in section B-A. The arrangement of the fan depends on the design of the fan drive 5. With the principle of the hot-air housing design according to FIG. 1, a good yield of the hot-air heating can be achieved analogously for each fan arrangement.

Claims (7)

Backofen, ausgerüstet mit einer thermischen Heizeinrichtung, die eine Heißluftheizung ist, wobei in Kombination dazu eine Mikrowellen-Heizeinrichtung anordenbar ist, dadurch gekennzeichnet, daß die aus einem Heizkörper (1) und einen Lüfter (4) bestehende Heizluftheizung in einem außerhalb der Backofenmuffel an der Backofen-Rückwand (8) befindlichen, den Lüfter (4) und die Heizung (1) umschließenden Heißluftgehäuse (7) angeordnet ist und daß der durch das Heißluftgehäuse (7) bestimmte Flächenanteil der Backofen-Rückwand (8) asymmetrisch angeordnete Lochgruppenmuster für Oberhitze (2), Unterhitze (3) und die Ansauglochgruppe für den Lüfter (4) besitzt.Oven equipped with a thermal heating device which is a hot air heater, in combination with which a microwave heating device can be arranged, characterized in that the heating air heater consisting of a heater (1) and a fan (4) is located in an outside of the oven muffle on the Oven rear wall (8) located, the fan (4) and the heater (1) enclosing hot air housing (7) is arranged and that the area portion of the oven rear wall (8) determined by the hot air housing (7) asymmetrically arranged hole group pattern for top heat ( 2), bottom heat (3) and the suction hole group for the fan (4). Backofen nach Anspruch 1 und 2, dadurch gekennzeichnet, daß das Heißluftgehäuse (7) eine konstruktive Einheit ist, deren Tiefe durch ein Lüfterrad (6) festgelegt ist und deren Umfang durch die äußeren Konturen des Lüfterrades (6) und der Heizung (1) bestimmt ist.Baking oven according to claim 1 and 2, characterized in that the hot air housing (7) is a structural unit, the depth of which is determined by a fan wheel (6) and the circumference of which is determined by the outer contours of the fan wheel (6) and the heater (1) is. Backofen nach Anspruch 1 und 2, dadurch gekennzeichnet, daß das Lochgruppenmuster für die Ansaugluft des Lüfters (4) außermittig in der oberen Hälfte der Backofen-Rückwand (8) angeordnet ist.Baking oven according to claim 1 and 2, characterized in that the perforated group pattern for the intake air of the fan (4) is arranged off-center in the upper half of the rear wall of the oven (8). Backofen nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Lochgruppenmuster für die Oberhitze (2) und die Unterhitze (3) außermittig dem Lüfter (4) benachbart, in der oberen bzw. unteren Hälfte der Backofen-Rückwand (8) angeordnet sind.Baking oven according to claims 1 and 2, characterized in that the hole group patterns for the top heat (2) and the bottom heat (3) are arranged eccentrically adjacent to the fan (4) in the upper and lower half of the back wall of the oven (8). Backofen nach Anspruch 1, 2 und 4, dadurch gekennzeichnet, daß der mittige Bereich der Backofen-Rückwand (8) keinen Heißluftaustritt besitzt.Baking oven according to claim 1, 2 and 4, characterized in that the central region of the rear wall of the oven (8) has no hot air outlet. Backofen nach Anspruch 1, 2 und 5, dadurch gekennzeichnet, daß die Austrittsfläche der Lochgruppe für Oberhitze (2) sich zur Austrittsfläche der Lochgruppe für Unterhitze (3) etwa wie 2:1 verhält.Baking oven according to claim 1, 2 and 5, characterized in that the exit surface of the hole group for top heat (2) to the exit surface of the hole group for bottom heat (3) behaves approximately as 2: 1. Backofen nach Anspruch 1, 3 und 4, dadurch gekennzeichnet, daß die Lochgruppenmuster für Oberhitze (2) und Unterhitze (3) und das Lochgruppenmuster für die Ansaugluft des Lüfters (4) infolge ihrer konstruktiven Ausbildung mikrowellendicht sind.Baking oven according to claim 1, 3 and 4, characterized in that the hole group pattern for top heat (2) and bottom heat (3) and the hole group pattern for the intake air of the fan (4) are microwave-proof due to their design.
EP19910100678 1990-02-22 1991-01-21 Baking oven Ceased EP0443330A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9002132U DE9002132U1 (en) 1990-02-22 1990-02-22 oven
DE9002132U 1990-02-22

Publications (2)

Publication Number Publication Date
EP0443330A2 true EP0443330A2 (en) 1991-08-28
EP0443330A3 EP0443330A3 (en) 1991-11-06

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EP19910100678 Ceased EP0443330A3 (en) 1990-02-22 1991-01-21 Baking oven

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DE (1) DE9002132U1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0670457A2 (en) * 1994-02-25 1995-09-06 AEG Hausgeräte GmbH Electric baking and roasting oven
GB2381861A (en) * 2001-10-25 2003-05-14 Electrolux Home Prod Corp Cooking oven with asymmetric air circulation
EP2015610A2 (en) 2007-07-09 2009-01-14 Samsung Electronics Co., Ltd. Convection heating unit and heating cooker having the same
CN101344269B (en) * 2007-07-09 2010-12-01 三星电子株式会社 Convection heating unit and heating cooker having the same
RU2556578C2 (en) * 2010-11-16 2015-07-10 Бэбиблум Хелткэа Б.В. Incubator
US9534794B2 (en) 2009-03-16 2017-01-03 Whirlpool Corporation Convection cooking appliance with circular air flow system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS586334A (en) * 1981-07-02 1983-01-13 Matsushita Electric Ind Co Ltd Hot air circulating type heating cooker
JPS61165527A (en) * 1985-01-14 1986-07-26 Matsushita Electric Ind Co Ltd Heat-cooking apparatus
GB2173680A (en) * 1985-04-12 1986-10-15 Microwave Ovens Ltd Microwave ovens
EP0319373A1 (en) * 1987-11-27 1989-06-07 Seb S.A. Electric oven of the air-circulation type

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS586334A (en) * 1981-07-02 1983-01-13 Matsushita Electric Ind Co Ltd Hot air circulating type heating cooker
JPS61165527A (en) * 1985-01-14 1986-07-26 Matsushita Electric Ind Co Ltd Heat-cooking apparatus
GB2173680A (en) * 1985-04-12 1986-10-15 Microwave Ovens Ltd Microwave ovens
EP0319373A1 (en) * 1987-11-27 1989-06-07 Seb S.A. Electric oven of the air-circulation type

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 372 (M-544)(2429) 11 Dezember 1986, & JP-A-61 165527 (MATSUSHITA) 26 Juli 1986, *
PATENT ABSTRACTS OF JAPAN vol. 7, no. 79 (M-204)(1224) 31 März 1983, & JP-A-58 6334 (MATSUSHITA) 13 Januar 1983, *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0670457A2 (en) * 1994-02-25 1995-09-06 AEG Hausgeräte GmbH Electric baking and roasting oven
EP0670457A3 (en) * 1994-02-25 1996-10-23 Aeg Hausgeraete Gmbh Electric baking and roasting oven.
GB2381861A (en) * 2001-10-25 2003-05-14 Electrolux Home Prod Corp Cooking oven with asymmetric air circulation
GB2381861B (en) * 2001-10-25 2005-05-11 Electrolux Home Prod Corp Cooking oven with offset fan
US8847129B2 (en) 2007-07-09 2014-09-30 Samsung Electronics Co., Ltd. Convection heating unit and heating cooker having the same
US20090013988A1 (en) * 2007-07-09 2009-01-15 Samsung Electronics Co., Ltd. Convection heating unit and heating cooker having the same
EP2015610A3 (en) * 2007-07-09 2009-05-06 Samsung Electronics Co., Ltd. Convection heating unit and heating cooker having the same
CN101344269B (en) * 2007-07-09 2010-12-01 三星电子株式会社 Convection heating unit and heating cooker having the same
EP2015610A2 (en) 2007-07-09 2009-01-14 Samsung Electronics Co., Ltd. Convection heating unit and heating cooker having the same
US9534794B2 (en) 2009-03-16 2017-01-03 Whirlpool Corporation Convection cooking appliance with circular air flow system
US10190783B2 (en) 2009-03-16 2019-01-29 Whirlpool Corporation Convection cooking appliance with circular air flow system
US10962235B2 (en) 2009-03-16 2021-03-30 Whirlpool Corporation Convection cooking appliance with circular air flow system
RU2556578C2 (en) * 2010-11-16 2015-07-10 Бэбиблум Хелткэа Б.В. Incubator
US9968501B2 (en) 2010-11-16 2018-05-15 Ningbo David Medical Device Co., Ltd. Incubator
US10314757B2 (en) 2010-11-16 2019-06-11 Ningbo David Medical Device Co., Ltd. Incubator
US10722411B2 (en) 2010-11-16 2020-07-28 Ningbo David Medical Device Co., Ltd. Incubator

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Publication number Publication date
EP0443330A3 (en) 1991-11-06
DE9002132U1 (en) 1990-04-26

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