EP1619443B1 - Appareil de cuisson avec ventilation réglable - Google Patents

Appareil de cuisson avec ventilation réglable Download PDF

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Publication number
EP1619443B1
EP1619443B1 EP05015520.9A EP05015520A EP1619443B1 EP 1619443 B1 EP1619443 B1 EP 1619443B1 EP 05015520 A EP05015520 A EP 05015520A EP 1619443 B1 EP1619443 B1 EP 1619443B1
Authority
EP
European Patent Office
Prior art keywords
cooking
opening
space
cooking device
sensor
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.)
Active
Application number
EP05015520.9A
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German (de)
English (en)
Other versions
EP1619443A2 (fr
EP1619443A3 (fr
Inventor
Udo Schiller
Urs Dubach
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.)
V-Zug AG
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V-Zug AG
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Filing date
Publication date
Application filed by V-Zug AG filed Critical V-Zug AG
Priority to PL05015520T priority Critical patent/PL1619443T3/pl
Priority to SI200531978T priority patent/SI1619443T1/sl
Publication of EP1619443A2 publication Critical patent/EP1619443A2/fr
Publication of EP1619443A3 publication Critical patent/EP1619443A3/fr
Application granted granted Critical
Publication of EP1619443B1 publication Critical patent/EP1619443B1/fr
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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
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2007—Removing cooking fumes from oven cavities

Definitions

  • the invention relates to a cooking appliance according to the preamble of claim 1. Such an oven is in EP 319 673 described.
  • an oven whose cooking chamber has two openings. At a first of these openings is a sensor for detecting escaping vapor. The second opening is arranged at a fan. If the sensor exiting vapors detected, the fan is turned on or operated amplified so that the exiting through the second opening fumes is conveyed away. It is also proposed to arrange a controllable slide at the second opening.
  • the object is to reduce the energy consumption of this device.
  • the cooking appliance is designed so that the fan in the downstream pressure chamber generates an overpressure, wherein the pressure chamber has an outlet opening for the delivery of air conveyed by the blower to the environment and tapers towards the outlet opening.
  • the first opening opens into this pressure chamber. This leads to the fact that the vapors on exiting through the first opening must overcome the pressure prevailing in the pressure chamber overpressure.
  • the sensor detects a Wrasenaustritt only at the first opening when there is a certain overpressure in the cooking chamber. This is why the sensor only responds when excessive steam is actually generated in the cooking chamber. It can be seen that the energy loss can be reduced by this measure without the moisture in the cooking chamber rising inadmissibly.
  • the second opening opens into the suction area of the blower, so that the fumes are efficiently conveyed away when the closure is opened.
  • the cooking appliance according to Fig. 1 has a cooking chamber 1, which is bounded by walls 2 and a door 3.
  • the cooking appliance shown as an example can be operated both as an oven and as a steam cooker. Accordingly, it has, in addition to conventional resistive heaters (not shown) a steam generator 4, as he eg in EP 1 166 694 is described.
  • a cross-flow fan 6 is arranged as a fan. This promotes air from a suction 7 in a pressure chamber 8. From the pressure chamber 8, the pumped air passes through a front outlet opening 9 of the device in the environment.
  • the pressure chamber 8 is bounded above by an inclined cover plate 10 and down through an inclined bottom plate 11, such that the pressure chamber 8 tapers towards the outlet opening 9. Laterally, the pressure chamber is closed by side walls (not shown).
  • two openings are arranged, which are approximately equal in size and, for. each have a diameter of about 2.5 cm.
  • a first opening 14 leads from the cooking chamber 1 in the interior 15 of a protective housing 16.
  • the protective housing 16 is arranged in the pressure chamber 8 and communicates with this via a connection opening 17.
  • the connection opening 17 is located on the side facing away from the fan of the protective housing 16.
  • a temperature sensor 18 is further arranged at the mouth of the first opening 14.
  • the first opening 14 is always open.
  • a second opening 20 connects the cooking chamber 1 with the suction area 7 in front of the blower 6.
  • a closure 21 is provided, which consists of a flap 22 which can be pushed by a stepping or servomotor 23 more or less over the mouth of the opening 20, such that the closure substantially continuously from a closed in an open position can be transferred.
  • a controller 24 is provided, which among other things monitors the temperature signal output by the temperature sensor 18.
  • the fan G is constantly in operation. It sucks in air through openings in the rear wall and in the side walls of the cooking appliance from the environment. This air passes through the suction region 7, is blown into the pressure chamber 8 and leaves it through the outlet opening 9. Since the pressure chamber 8 is tapered towards the outlet opening 9, a slight overpressure arises in the pressure chamber 8.
  • blower 6 it is an object of the blower 6 is to dissipate to cool the device air, which has warmed on the outside of the cooking chamber to the outside.
  • the function of the cooking appliance depends on whether it is used as a steam cooker or as a conventional thermal oven.
  • the food or the cooking chamber 1 is heated by the resistive heaters, not shown. It can, as in Fig. 2 shown, the cooking chamber temperature Tgr above 100 ° C rise.
  • the shutter 21 is in the closed position, since the controller 24 is adapted to maintain the temperature at the temperature sensor 18 at a predetermined value Tr of, for example, 63 ° C.
  • the controller 24 starts to open the second opening 20 by operating the stepping motor 23.
  • the cooking chamber 1 is connected via the second opening 20 with the suction region 7, where a relatively low pressure prevails, so that the vapor is discharged through the opening 20 and the pressure in the cooking chamber 1 is discharged.
  • the pressure gradient between the pressure chamber 8 and cooking chamber 1 is reversed, and it occurs only cooler and drier air from the pressure chamber 8 in the oven, causing the temperature sensor 8 cools, so that the controller 24 closes the shutter 21 again.
  • the controller 24 thus forms a control loop which tries to keep the temperature Ts at the sensor 18 approximately at the value Tr by opening the shutter 21 more or less strongly.
  • the controller 24 preferably completely closes the closure 21, so that no further vapor can escape and an unnecessary loss of energy is avoided.
  • vapor is removed as required from the cooking chamber 1.
  • the fan 6 can remain permanently in operation, independently of the temperature value Ts of the sensor, and thus cool the cooking appliance.
  • a separate fan for extracting excess vapor from the cooking chamber 1 is not required, a cross-flow fan is sufficient.
  • the shutter 21 In operation as Dampfgar Eat the shutter 21 is normally closed.
  • the controller monitors the temperature Ts at the sensor 18 and uses it to enter the temperature in the EP 1 166 694 described manner to control the performance of the steam generator 4.
  • the closure 21 can be opened at the end of the steam-cooking operation and thus the steam can be discharged from the cooking chamber 1. At the same time drier air is introduced via the first opening 14 in the cooking chamber 1.
  • the opening 14 and the temperature sensor 18 can be used in both modes for device control.
  • the protective housing 16 shields the temperature sensor 18 from the air coming from the fan 6, so that the temperature sensor 18 can detect even small amounts of leaking vapor or vapor.
  • the cooking chamber 1 When the door 3 is closed, the cooking chamber 1 is gastight except for the first and the second opening. In steam cooking operation is thus prevented that uncontrolled escape of steam from the oven and, for. Can cause moisture damage. In conventional furnace operation, the air exchange with the environment occurs in a controlled manner via the openings 14 and 20.
  • the temperature Tr can be a fixed, predetermined value. However, it can also be selected depending on the temperature in the cooking chamber 1. It can thus be taken into account that the vapor emerging from the hot cooking chamber has a higher temperature, which allows a more accurate detection of Wrasens and thus a better control of the device.
  • the closure 21 can be kept partially open or completely open, at least in one program phase, independently of the temperature at the sensor 18.
  • the cooking appliance can be designed such that, upon selection of a special program, while at least a portion of the program keeps the shutter 21 at least partially independent of the sensor 18.
  • a sensor for detecting the leakage through the first opening 14 instead of a temperature sensor, another suitable sensor can also be used, as shown in FIG EP 1 156 282 is described.

Claims (14)

  1. Dispositif de cuisson avec
    un espace de cuisson (1),
    un ventilateur (6) pour transporter du gaz à partir d'une zone d'admission d'air (7) au dehors de l'espace de cuisson (1) dans un espace à pression (8) au dehors de l'espace de cuisson (1),
    une première ouverture (14) dans l'espace de cuisson (1),
    un capteur (18) pour détecter de la vapeur sortant de la première ouverture (14),
    une deuxième ouverture (20) dans l'espace de cuisson (1), arrangée à une distance de la première ouverture (14) et
    un couvercle (21) pour couvrir la deuxième ouverture (20),
    le ventilateur (6) étant adapté à générer une surpression dans l'espace à pression (8),
    caractérisé en ce que la première ouverture (14) s'ouvre dans l'espace à pression (8), l'espace à pression (8) ayant une ouverture de sortie (9) pour évacuer de l'air transporté à travers le ventilateur (6) dans l'environnement et s'effile vers l'ouverture de sortie (9), et le dispositif de cuisson ayant une commande de couvercle (24) pour fermer le couvercle (21) dépendant d'un signal du capteur (18).
  2. Dispositif de cuisson selon la revendication 1, caractérisé en ce que la deuxième ouverture (20) s'ouvre dans la zone d'admission (7).
  3. Dispositif de cuisson selon l'une des revendications précédentes, caractérisé en ce qu'une carcasse de protection (16) est arrangée à l'intérieur de l'espace à pression (8), la première ouverture (14) s'ouvrant dans un espace intérieur (15) de la carcasse de protection (16), le capteur (18) étant arrangé dans l'espace intérieur (15) et l'espace intérieur (15) communiquant avec l'espace à pression (8) et particulièrement en ce que l'espace intérieur (15) communique avec l'espace à pression (8) par une ouverture de connexion (17), étant arrangée d'un côté de la carcasse de protection opposé du ventilateur (6).
  4. Dispositif de cuisson selon l'une des revendications précédentes, caractérisé en ce que le capteur (18) est un capteur de température arrangé à la sortie de la première ouverture (14).
  5. Dispositif de cuisson selon l'une des revendications précédentes, caractérisé en ce que la commande de couvercle (24) est en forme de circuit régulateur qui cherche à réguler une température (Ts) au capteur (18) à une température souhaitée (Tr) en ouvrant et fermant le couvercle (21).
  6. Dispositif de cuisson selon l'une des revendications précédentes, caractérisé en ce que la commande de couvercle (24) ouvre le couvercle (21) progressivement quand une évacuation de vapeur augmentée à travers la première ouverture est détectée et particulièrement en ce qu'elle ferme le couvercle (21) quand aucune évacuation de vapeur n'est détectable.
  7. Dispositif de cuisson selon l'une des revendications précédentes, caractérisé en ce que le ventilateur (6) est un ventilateur radial.
  8. Dispositif de cuisson selon l'une des revendications précédentes, caractérisé en ce qu'il est formé de sorte que le ventilateur (6) transporte de l'air, chauffé à l'extérieur de l'espace de cuisson (1), à l'extérieur, afin de refroidir de dispositif.
  9. Dispositif de cuisson selon l'une des revendications précédentes, caractérisé en ce que le ventilateur (6) est opéré essentiellement indépendamment du signal du capteur (18).
  10. Dispositif de cuisson selon l'une des revendications précédentes, caractérisé en ce qu'il est en forme de four à cuisson thermique combinée avec un four à vapeur, ayant un générateur de vapeur (4) pour introduire de la vapeur dans l'espace de cuisson (1) en plus d'au moins un chauffage résistif pour l'espace de cuisson (1), et en ce qu'il est adapté à contrôler une quantité de vapeur générée par le générateur de vapeur (4) dépendant d'un signal du capteur (18), quand opéré comme four à vapeur.
  11. Dispositif de cuisson selon la revendication 10, caractérisé en ce qu'il est adapté à ouvrir le couvercle (21) à la fin d'une opération de cuisson à vapeur, afin d'évacuer de la vapeur de l'espace de cuisson (1).
  12. Dispositif de cuisson selon l'une des revendications précédentes, caractérisé en ce que l'espace de cuisson (1) est étanche au gaz à part de la première et la deuxième ouverture (14, 20).
  13. Dispositif de cuisson selon l'une des revendications précédentes, caractérisé en ce que le couvercle (21) est transférable d'une position fermée dans une position ouverte de manière essentiellement continue.
  14. Dispositif de cuisson selon l'une des revendications précédentes, caractérisé en ce qu'il est formé de sorte qu'il garde le couvercle (21) partiellement ouvert, indépendamment du capteur (18), pendant au moins une partie du programme de cuisson.
EP05015520.9A 2004-07-21 2005-07-18 Appareil de cuisson avec ventilation réglable Active EP1619443B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL05015520T PL1619443T3 (pl) 2004-07-21 2005-07-18 Urządzenie do gotowania ze sterowanym odpowietrzeniem
SI200531978T SI1619443T1 (sl) 2004-07-21 2005-07-18 Kuhalna naprava z odzračevanjem, ki ga je moč krmiliti

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01235/04A CH711637B1 (en) 2004-07-21 2004-07-21 Cooking appliance with controllable ventilation.

Publications (3)

Publication Number Publication Date
EP1619443A2 EP1619443A2 (fr) 2006-01-25
EP1619443A3 EP1619443A3 (fr) 2008-04-16
EP1619443B1 true EP1619443B1 (fr) 2015-04-08

Family

ID=35134116

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05015520.9A Active EP1619443B1 (fr) 2004-07-21 2005-07-18 Appareil de cuisson avec ventilation réglable

Country Status (5)

Country Link
EP (1) EP1619443B1 (fr)
CH (1) CH711637B1 (fr)
DK (1) DK1619443T3 (fr)
PL (1) PL1619443T3 (fr)
SI (1) SI1619443T1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1855058B1 (fr) * 2006-08-24 2017-04-19 V-Zug AG Procédé et appareil de cuisson de plats à la vapeur
ATE463186T1 (de) 2007-06-26 2010-04-15 V Zug Ag Gargut-zubereitung mit dampfaustritt-detektion
DE102008036684A1 (de) 2008-08-06 2010-02-11 Rational Ag Gargerät und Verfahren zum Überwachen eines Garprozesses
TR201206974T1 (tr) * 2009-12-31 2013-01-21 Arçeli̇k Anoni̇m Şi̇rketi̇ Havalandırma cihazı içeren bir fırın.
KR102210370B1 (ko) * 2016-06-03 2021-02-01 삼성전자주식회사 오븐
EP3770508A3 (fr) * 2020-11-27 2021-06-23 V-Zug AG Appareil de cuission et procédé de cuisson pour faire fonctionner un appareil de cuisson
CN112656245B (zh) * 2020-12-31 2023-11-17 广东美的厨房电器制造有限公司 烹饪器具、烹饪器具的控制方法和可读存储介质
DE102022200778A1 (de) 2022-01-25 2023-07-27 BSH Hausgeräte GmbH Vorrichtung zum Abführen eines Wrasenstroms sowie Backofen oder Gargerät
CN115005692A (zh) * 2022-06-30 2022-09-06 杭州老板电器股份有限公司 烹饪器具以及烹饪器具的控制方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3209541A1 (de) * 1982-03-16 1983-09-29 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Backofen
DE3741975A1 (de) 1987-12-11 1989-06-22 Buderus Kuechentechnik Vorrichtung zur steuerung eines mit dampf betriebenen gargeraetes und vorrichtung zum betreiben eines solchen geraetes
DE10019934A1 (de) * 2000-04-20 2001-10-31 We Ma Werkzeug Und Maschb Gmbh Vorrichtung für einen mit einer Ofentür versehenen Erhitzungsofen
DE50108057D1 (de) 2000-05-17 2005-12-22 V Zug Ag Zug Backofen-Entlüftung

Also Published As

Publication number Publication date
EP1619443A2 (fr) 2006-01-25
EP1619443A3 (fr) 2008-04-16
DK1619443T3 (en) 2015-05-26
SI1619443T1 (sl) 2015-08-31
PL1619443T3 (pl) 2015-08-31
CH711637B1 (en) 2017-04-13

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