EP3134684A1 - Backofen mit einem herdinnenraum und ofentür - Google Patents

Backofen mit einem herdinnenraum und ofentür

Info

Publication number
EP3134684A1
EP3134684A1 EP16721774.4A EP16721774A EP3134684A1 EP 3134684 A1 EP3134684 A1 EP 3134684A1 EP 16721774 A EP16721774 A EP 16721774A EP 3134684 A1 EP3134684 A1 EP 3134684A1
Authority
EP
European Patent Office
Prior art keywords
oven
air
air duct
cooking
cavity
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
EP16721774.4A
Other languages
English (en)
French (fr)
Other versions
EP3134684B1 (de
Inventor
Valerio Verdoliva
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.)
Electrolux Appliances AB
Original Assignee
Electrolux Appliances AB
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 Electrolux Appliances AB filed Critical Electrolux Appliances AB
Publication of EP3134684A1 publication Critical patent/EP3134684A1/de
Application granted granted Critical
Publication of EP3134684B1 publication Critical patent/EP3134684B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F24C15/02—Doors specially adapted for stoves or ranges
    • F24C15/025—Doors specially adapted for stoves or ranges with air curtain closures
    • 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
    • F24C15/006—Arrangements for circulation of cooling air

Definitions

  • a cooking oven with an oven cavity and an oven door The present invention relates to a cooking oven including an oven cavity and an oven door for opening and closing a front opening of said oven cavity according to the preamble of claim 1.
  • a conventional cooking oven reguires some time to obtain the necessary temperature inside the oven cavity. When the oven door is opened by the user, then a temperature drop is occurred in the oven cavity. Said temperature drop disturbs the cooking process. Further, the temperature drop increases the cooking time and the energy consumption.
  • EP 2 180 259 Al discloses a cooking oven with airflow control devices.
  • An air duct encloses the oven cavity.
  • An air inlet of said air duct is arranged below a front opening of the oven cav- ity.
  • An air outlet of the air duct is arranged above the front opening of the oven cavity.
  • the object of the present invention is achieved by the cooking oven according to claim 1.
  • at least one opening is formed in a horizontal front portion of the top wall of the oven cavity, wherein said opening connects the air duct to the oven cavity, and wherein the opening is closed by the ventilation flap in the closed state of the oven door and opened by the ventilation flap in the opened state of the oven door, so that an air curtain is formed within a front portion of the oven cavity in the opened state of the oven door.
  • the core of the present invention is the opening m the horizontal front portion of the top wall of the oven cavity, which is openable and closable in dependence of the opened and closed states, respectively, of the oven door.
  • the opening connects the air duct to the oven cavity, so that the air curtain is formed inside the oven cavity in the opened state of the oven door. Since the air curtain is formed inside the oven cavity, a relative big thermal barrier between the oven cavity and the front area of said oven cavity is obtained by a relative small flow rate of the air stream.
  • the ventilation flap has a double function. On the one hand the ventilation flap closes the opening in the closed state. On the other hand the ventilation flap deflects downwardly the air stream from the air duct into the oven cavity in the opened state.
  • the air duct may include at least one air inlet connecting said air duct to the surroundings of the cooking oven.
  • At least one further opening may be formed in a front portion of a bottom wall of the oven cavity, wherein said further opening connects the air duct to the oven cavity.
  • the further opening is closed by a further venti lation flap in the closed state of the oven door and opened by said further ventilation flap in the opened state of the oven door, so that the air curtain is sucked through the further opening into the air duct .
  • the air curtain or at least a part of said air curtain exhausts through a gap between the opened oven door and the front opening of the oven cavity.
  • the air stream in the air duct and the air curtain within the front portion of the oven cavity form a closed air circuit in the opened state of the oven door.
  • the air stream in the air duct may form an open air circuit in the closed state of the oven door.
  • at least one fan may be arranged within the air duct and above the top wall of the oven cavity.
  • the conventional air channel for cooling the oven cavity may be used for the present invention .
  • at least one electronic circuit may be arranged within the air duct and above the top wall of the oven cavity, wherein preferably said electronic circuit forms a control unit of the cooking oven or a part of said control unit of the cooking oven.
  • the electronic circuit may be cooled down directly by the air stream in the air duct.
  • the oven door includes at least one further air duct formed inside said oven door, wherein said further air duct extends vertically in the closed state of the oven door, and wherein preferably a further air stream is generated by a Ven- turi effect and moves bottom-up inside the oven door.
  • the fur ⁇ ther air duct and the Venturi effect allow a passive cooling of the oven door .
  • the actuation of the ventilation flap and/or the further ventilation flap is automatically controlled by the opening and closing of the oven door.
  • the actuation of the ventilation flap and/or the further ventilation flap may be mechanically performed by at least one spring element.
  • the actuation of the ventilation flap and/or the further ventilation flap may be performed by an electric and/or electromagnetic drive unit.
  • FIG 1 illustrates a schematic sectional side view of a cooking oven according to a preferred embodiment of the present invention, wherein an oven door is in a closed state
  • FIG 2 illustrates a schematic sectional side view of the cooking oven according to the preferred embodiment of the present invention, wherein the oven door is in an opened state
  • FIG 3 illustrates a schematic sectional side view of the cooking oven according to a further embodiment of the present invention, wherein the oven door is in the closed state
  • FIG 4 illustrates a schematic detailed sectional side view of an upper front part of the cooking oven according to the further embodiment of the present invention, wherein the oven door is in the closed state.
  • FIG 1 illustrates a schematic sectional side view of a cooking oven 10 according to a preferred embodiment of the present invention, wherein an oven door 14 is in a closed state.
  • the cooking oven 10 includes an oven cavity 12.
  • a front opening of said oven cavity 12 is closable by the oven door 14.
  • the oven door 14 is in the closed state.
  • a fan 16 is arranged inside an air duct 18.
  • the fan 16 is arranged above the oven cavity 12.
  • the air duct 18 encloses at least par ⁇ tially the oven cavity 12.
  • the air duct 18 ex ⁇ tends below a bottom wall of the oven cavity 12, behind a rear wall of the oven cavity 12 and above a top wall 30 of the oven cavity 12.
  • the cross-section of the air duct 18 extends substan- tially over the whole width of the oven cavity 12, at least above the top wall 30 in the front portion of the oven cavity 12.
  • the cooking oven 10 includes two or more par ⁇ allel air ducts 18.
  • the air duct 18 includes an air outlet 20 arranged above the front opening of the oven cavity 12. In the closed state of the oven door 14 the air outlet 20 is arranged above said oven door 14.
  • At least one opening 24 is formed in the top wall 30 of the oven cavity 12.
  • the air duct 18 and the oven cavity 12 are connected via said opening 24.
  • the at least one opening 24 is openable and closable by at least one ventilation flap 22.
  • the opening 24 is formed as a cut-out between the oven cavity 12 and the air duct 18, wherein the ventilation flap 22 covers directly said cut-out in the closed state of the opening 24.
  • a pivoting axis of the ventilation flap 22 is arranged directly in front of the opening 24.
  • the opening 24 is closed by the ventilation flap 22, when the oven door 14 is in the closed state.
  • the one or more open ⁇ ings 24 extend substantially over the whole width of the top wall 30 of the oven cavity 12.
  • the fan 16 generates an air stream 26 inside the air duct 18.
  • the air stream 26 is provided for cooling down the environment of the oven cavity 12.
  • the air stream 26 enters the air duct 18 through one or more air inlets.
  • the air inlet may be arranged below the oven door 14 and at the front side of the cooking oven 10.
  • the air inlet may be arranged at the rear side of the cooking oven 10.
  • the air stream 26 leaves the air duct 18 through the air outlet 20.
  • FIG 2 illustrates a schematic sectional side view of the cooking oven 10 according to the preferred embodiment of the present invention, wherein the oven door 14 is in an opened state.
  • the opening 24 is opened by the ventilation flap 22.
  • the air outlet 20 is partially or completely closed by said ventilation flap 22, when the oven door 14 is in the opened state.
  • the ventilation flap 22 acts as a deflecting plate for the air stream 26, so that said air stream leaves the air duct 18 through the opening 24 and streams vertically downwards within a front portion of the oven cavity 12.
  • an air curtain 28 is formed within the front portion of the oven cavity 12, when the oven door 14 is opened.
  • the air curtain 28 insulates the thermal state of the oven cavity 12, when the oven door 14 is opened.
  • the air curtain 28 provides a shield for the oven cavity 12.
  • one or more further openings are formed in the bottom wall of the oven cavity 12.
  • the at least one further opening in the bottom wall of the oven cavity 12 is arranged vertically below the at least one opening 24 formed in the top wall 30 of said oven cavity 12.
  • the one or more further openings are provided that the air curtain 28 enters the air duct 18 again.
  • the air stream 26 including the air curtain 28 forms a closed cycle, when the oven door 14 is opened.
  • the air curtain 28 may leave the cooking oven 10 through a gap between the oven door 14 and the front opening of said oven cavity 12.
  • the air curtain 28 inside the oven cavity 12 has the advantage that the temperature inside the oven cavity 12 is maintained, when the oven door 14 is opened. Thereby energy and cooking time are saved.
  • Another advantage of the air curtain 28 inside the oven cavity 12 is that a sudden temperature drop is prevented, which would have a bad impact for same cooking recipes.
  • a fur ⁇ ther advantage is that the air curtain 28 inside the oven cavity 12 avoids that the user is exposed to the hot vapour when the oven door 14 is opened.
  • FIG 3 illustrates a schematic sectional side view of the cooking oven 10 according to a further embodiment of the present inven ⁇ tion, wherein the oven door 14 is in the closed state.
  • At least one opening 24 is formed in the top wall 30 of the oven cavity 12.
  • the air duct 18 and the oven cavity 12 are connected via said opening 24.
  • the opening 24 is openable and closable by the ventilation flap 22.
  • the opening 24 is formed as a cut-out between the oven cavity 12 and the air duct 18, wherein the ventilation flap 22 covers directly said cut-out in the closed state of the opening 24.
  • the pivoting axis of the ventilation flap 22 is arranged directly in front of the opening 24.
  • the opening 24 is closed by the ventilation flap 22, when the oven door 14 is in the closed state. However, when the oven door 14 is in the opened state, then the opening 24 is opened by the ventilation flap 22.
  • the one or more openings 24 extend substantially over the whole width of the top wall 30 of the oven cavity 12.
  • the fan 16 generates the air stream 26 inside the air duct 18 provided for cooling down the environment of the oven cavity 12.
  • An electronic circuit 32 is arranged inside the air duct 18.
  • the electronic circuit 32 is arranged above the top wall 30 of the oven cavity 12.
  • the electronic circuit 32 forms the control unit of the cooking oven 10 or a part of said control unit.
  • the air stream 26 is also provided for cooling down the electronic circuit 32.
  • the air stream 26 enters the air duct 18 through one or more air inlets.
  • the air inlet may be arranged below the oven door 14 and at the front side of the cooking oven 10. Alternatively or addi- tionally, the air inlet may be arranged at the rear side of the cooking oven 10.
  • the air stream 26 leaves the air duct 18 through the air outlet 20.
  • the opening 24 is opened by the ventilation flap 22, wherein the air outlet 20 is partially or completely closed by said ventilation flap 22.
  • the ventilation flap 22 may act as a deflecting plate for the air stream 26, so that said air stream 26 leaves the air duct 18 through the opening 24 and streams vertically downwards within the front portion of the oven cavity 12.
  • the air curtain 28 shown in FIG 2 is formed within the front portion of the oven cavity 12, when the oven door 14 is opened.
  • the air curtain 28 insulates the thermal state of the oven cavity 12 and provides the shield for the oven cavity 12, when the oven door 14 is opened.
  • the air curtain 28 inside the oven cavity 12 maintains the temperature inside the oven cavity 12, when the oven door 14 is opened, so that energy and cooking time are saved and the sudden temperature drop is prevented, which would have a bad impact for same cooking recipes. Further, the air curtain 28 inside the oven cavity 12 avoids that the user is exposed to the hot vapour when the oven door 14 is opened.
  • a further air stream 34 is generated inside the oven door 14. Said further air stream 34 moves bottom-up inside the oven door 14. The further air stream 34 inside the oven door 14 is generated by the Venturi effect.
  • a Venturi pipe is formed by a door outlet 36 at an upper end of the oven door 14 and by the air outlet 20. The further air stream 34 is sucked from the kitchen into the interior of the oven door 14 through an inlet at a lower end of said oven door 14. The further air stream 34 is blown out from the interior of the oven door 14 through the door outlet 36 at the upper end of said oven door 14. The further air stream 34 provides a cooling of the oven door 14.
  • FIG 4 illustrates a schematic detailed sectional side view of an upper front part of the cooking oven 10 according to the further embodiment of the present invention, wherein the oven door 14 is in the closed state.
  • the Venturi pipe is formed by the door outlet 36 at the upper end of the oven door 14 and by the air outlet 20.
  • the further air stream 34 is blown out from the interior of the oven door through the door outlet 36 at the upper end of said oven door 14.
  • the further air stream 34 provides the cooling of the oven door 14.

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)
  • Baking, Grill, Roasting (AREA)
  • Special Wing (AREA)
EP16721774.4A 2015-05-08 2016-05-03 Backofen mit einem herdinnenraum und ofentür Active EP3134684B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15166866.2A EP3091291A1 (de) 2015-05-08 2015-05-08 Backofen mit einem herdinnenraum und ofentür
PCT/EP2016/059922 WO2016180684A1 (en) 2015-05-08 2016-05-03 A cooking oven with an oven cavity and an oven door

Publications (2)

Publication Number Publication Date
EP3134684A1 true EP3134684A1 (de) 2017-03-01
EP3134684B1 EP3134684B1 (de) 2018-07-18

Family

ID=53051728

Family Applications (2)

Application Number Title Priority Date Filing Date
EP15166866.2A Withdrawn EP3091291A1 (de) 2015-05-08 2015-05-08 Backofen mit einem herdinnenraum und ofentür
EP16721774.4A Active EP3134684B1 (de) 2015-05-08 2016-05-03 Backofen mit einem herdinnenraum und ofentür

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP15166866.2A Withdrawn EP3091291A1 (de) 2015-05-08 2015-05-08 Backofen mit einem herdinnenraum und ofentür

Country Status (6)

Country Link
US (1) US20180094820A1 (de)
EP (2) EP3091291A1 (de)
CN (1) CN107535023A (de)
AU (1) AU2016260672B2 (de)
BR (1) BR112017020653B1 (de)
WO (1) WO2016180684A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180045421A1 (en) * 2016-08-11 2018-02-15 William Bailie Convection oven
CN106618257A (zh) * 2016-12-23 2017-05-10 宁波方太厨具有限公司 一种防开门烫伤的烤箱
DE102017202778A1 (de) * 2017-02-21 2018-08-23 BSH Hausgeräte GmbH Gargerät mit einer Aufnahme für ein entnehmbar ausgebildetes Sensormodul
KR102366006B1 (ko) * 2017-06-20 2022-02-23 삼성전자주식회사 오븐
TR201712959A2 (tr) * 2017-08-29 2019-03-21 Vestel Beyaz Esya Sanayi Ve Ticaret Anonim Sirketi Bir Beyaz Eşya Ve Çalışma Yöntemi
CN111853877B (zh) * 2019-04-30 2023-08-01 广东美的厨房电器制造有限公司 烹饪器具
CN112438615B (zh) * 2019-08-31 2022-02-18 宁波方太厨具有限公司 一种门体及具有该门体的烹饪装置
CN114176423B (zh) * 2021-12-31 2023-09-15 深圳市晨北科技有限公司 一种烤箱
CN114431697B (zh) * 2022-02-23 2023-05-09 广东美的厨房电器制造有限公司 烹饪器具

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2929373A (en) * 1958-02-14 1960-03-22 Berns Air King Corp Portable fan-exhausted cooking device
DE3519423A1 (de) * 1985-05-30 1986-12-04 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Gargeraet mit verschliessbarem garraum
DE3839657C2 (de) * 1988-11-24 1993-11-18 Miele & Cie Luftführungssystem für einen Backofen
DE10019934A1 (de) * 2000-04-20 2001-10-31 We Ma Werkzeug Und Maschb Gmbh Vorrichtung für einen mit einer Ofentür versehenen Erhitzungsofen
DE10065333A1 (de) * 2000-12-27 2002-07-04 Bsh Bosch Siemens Hausgeraete Gargerätetür
DE102004008463B3 (de) * 2004-02-20 2005-03-10 Electrolux Home Prod Corp Verfahren und eine Vorrichtung zum Be- und/oder Entlüften eines Garofens
KR100628081B1 (ko) * 2005-12-22 2006-09-26 엘지전자 주식회사 전기 오븐 레인지
ITTV20080136A1 (it) 2008-10-27 2010-04-28 Unieldom Group S Cons A R L Forno per la cottura d'alimenti, con dispositivo di controllo a flusso d'aria della dispersione di calore dalla camera di cottura attraverso la luce d'accesso, e sistema integrato di ventilazione per l'isolamento termico con barriera termica della lu
DE102010007286A1 (de) * 2010-02-08 2011-08-11 fischer automotive systems GmbH & Co. KG, 72160 Backofen
KR102124833B1 (ko) * 2013-09-11 2020-06-19 삼성전자주식회사 오븐

Also Published As

Publication number Publication date
AU2016260672A1 (en) 2017-09-28
US20180094820A1 (en) 2018-04-05
BR112017020653A2 (pt) 2018-07-03
EP3091291A1 (de) 2016-11-09
EP3134684B1 (de) 2018-07-18
BR112017020653B1 (pt) 2021-09-21
CN107535023A (zh) 2018-01-02
AU2016260672B2 (en) 2021-05-27
WO2016180684A1 (en) 2016-11-17

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