EP2444737A1 - Dispositif de soufflage de vapeurs à partir d'un appareil de cuisson ainsi qu'appareil de cuisson doté d'un tel dispositif - Google Patents

Dispositif de soufflage de vapeurs à partir d'un appareil de cuisson ainsi qu'appareil de cuisson doté d'un tel dispositif Download PDF

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Publication number
EP2444737A1
EP2444737A1 EP11185047A EP11185047A EP2444737A1 EP 2444737 A1 EP2444737 A1 EP 2444737A1 EP 11185047 A EP11185047 A EP 11185047A EP 11185047 A EP11185047 A EP 11185047A EP 2444737 A1 EP2444737 A1 EP 2444737A1
Authority
EP
European Patent Office
Prior art keywords
outlet
ramp
cover
door
hood part
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Withdrawn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
EP11185047A
Other languages
German (de)
English (en)
Inventor
Ernst Huber
Rainer Schwoshuber
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2444737A1 publication Critical patent/EP2444737A1/fr
Withdrawn legal-status Critical Current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
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2007—Removing cooking fumes from oven cavities
    • 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

  • the invention relates to a device for blowing out fumes and / or cooling air from a cooking appliance, with a fan base plate.
  • the device comprises an exhaust duct, which is covered by an air duct cover, and at least partially formed between the duct cover and the fan base plate.
  • the invention comprises a cooking appliance, in particular an oven, with such a device.
  • a cooking appliance with a corresponding Wrasenkanal is from the DE 102 22 878 A1 known.
  • the exhaust duct is at least partially formed between the duct cover and the fan bottom plate.
  • the exhaust duct has a front outlet, which is arranged above a door of the cooking appliance, which is internally ventilated between at least two sub-elements of the door.
  • a ramp reducing the flow cross-section of the exhaust air duct is formed, through which an airflow flowing past an upper side of the door can be generated at the outlet, through which air can be sucked out of the interior of the door by means of the air flow via an opening in the upper side.
  • a multifunctional suction device for a cooking appliance which on the one hand ensures the suction of vapor from the garraum and also automatically allows the venting of the door closing the cooking chamber.
  • the arrangement of the outlet and the ramp is designed so that the outflowing air unfolds such a direction and effect that it is additionally coupled during discharge from the cooking fluidly with the ventilation device of the door and in a defined way with hot air from the door and dissipates.
  • a flow nozzle is formed by the shape of the ramp and / or the position of the ramp and / or the geometry of the outlet.
  • the outlet is arranged so that the air flow overflows substantially horizontally across the opening in the top of the door.
  • the fluidic coupling is then particularly effective.
  • the front edge of the outlet is located farther back or further in the cooking appliance than the opening in the door.
  • the door comprises as partial elements at least an outer pane and an inner pane, which are spaced from each other, so that therebetween Airspace forms. It can also be formed at least one further disc as a washer between the inner and the outer pane.
  • air can flow into the space or spaces between the panes of the door. Due to the air flow in the door, it is specifically cooled. The discharge of this air into the door is particularly metered and precisely achieved by the air flow from the exhaust duct, whereby the thermal management of the door can be improved.
  • a hood part of metal is arranged, which adjoins the extension of the air duct cover front side of the duct cover.
  • a hood part is formed as a component adjoining a front edge of the air duct cover towards the front, which forms the front end of the outlet, in particular of the exhaust air duct.
  • the front end of the exhaust duct, from which then the vapors are blown out, is therefore no longer formed in particular by an air duct cover formed up to and from this front end.
  • a hood part which remains dimensionally stable even at high temperature influences, which can be up to 150 ° C., for example, such that undesirable air flow distortions do not occur.
  • the air duct cover is arranged offset with its front end and its front edge to the rear and is extended towards the front quasi by the hood part.
  • the ramp is formed as a separate part. As a result, it is possible to generate different suction effects for the door essentially solely by exchanging this part.
  • the device comprises the fan base plate, in which a recess for a vapor channel is formed.
  • the device also includes, in particular, a vapor channel cover with which the depression is covered.
  • the device has the exhaust duct, which is covered by the duct cover. The exhaust duct is thus at least partially formed between the duct cover and the vapor duct cover.
  • the outlet is limited at the top and the vertical sides by the hood part.
  • the hood part is thus virtually formed as a pot-like component or roof-like component, which has an inverted U-shape in cross section.
  • the torsional rigidity of the leading edge is achieved in a particularly advantageous manner and it is achieved both on the horizontal upper edge and on the vertical side edges a desired dimensional stability. As a result, undesirable deformations can virtually be avoided over the entire cross section.
  • the hood part is formed on a front upper edge at least partially with an edge reinforcement.
  • the edge reinforcement is a fold strip.
  • the hood part is a one-piece component and the folded strip is virtually a bent front portion of the hood part.
  • the folded strip is bent outward with respect to the cross-sectional geometry of the hood part. This means that it is virtually bent to the outside of the top of the hood part. As a result, the portion of the hood part which determines the cross section of the exhaust air duct is not restricted with regard to its cross-sectional geometry.
  • the folded strip is bent so that it extends parallel to the upper side of the hood part, in particular at least partially rests on it.
  • the mechanical stability can be further improved and beyond a very flat-building hood part are formed.
  • the air shaft cover is made of plastic.
  • the duct cover of the device according to the invention may continue to be provided of plastic and thus enable associated benefits.
  • the duct cover is formed on a hood part facing the front edge with an insertion and with a stop edge.
  • the hood part can be arranged mechanically stable and positionally secure to the duct cover and connected to this or can be plugged together.
  • no unwanted interruption of the exhaust duct is completed and thus there are no unwanted slots through which the exhaust air or the vapor can escape at undesirable locations of the exhaust duct.
  • the air duct cover with the hood part a certain seal is achieved in this regard.
  • the Einzhouflansch is designed for accurate insertion into the hood part and in the assembled state of the hood part with the duct cover a rear edge of the hood part abuts against the stop edge of the duct cover.
  • the fully assembled state can be easily and reliably detected during assembly and the positionally secure arrangement of the components can be ensured.
  • the inner sides of the hood part and the duct cover in this assembled state are flush over each other.
  • this may also be provided for the outer sides, in particular on the upper side of the hood part and the duct cover.
  • a ramp that rises towards the outlet is formed on an upper side of the vapor channel cover facing the air shaft cover. It is a particularly advantageous embodiment, since a certain Venturi effect can be generated during the outflow and thus a nozzle functionality of the exhaust air duct is ensured at this front outlet. According to a further embodiment, provision can be made for a ramp which increases towards the outlet to be formed at a front end of the fan base plate.
  • the ramp extends substantially over the entire width of the vapor channel cover. This allows a particularly uniform generation of the nozzle effect over the entire flow cross-section.
  • the ramp forms a quasi edge with a wedge shape in cross section.
  • the ramp in the assembled state of the device and thus in particular the said components fan bottom plate, hood part and vapor duct cover the ramp is at least partially disposed in the vertical direction, directly below the hood part.
  • the hood part is integrated in the fan base plate.
  • the fan base plate is then integrally formed and in particular made of metal.
  • a component-reduced design of the device can be achieved.
  • the assembly effort can be reduced as a result.
  • unwanted position tolerances between the hood part and the fan base plate can thereby be avoided, which in turn has a positive effect on the flow conditions.
  • the hood part is designed as a completely separate component for the fan base plate, the vapor channel cover and the air shaft cover.
  • the components can be at least partially connected by connectors in slots with each other.
  • the hood part is integrally formed on the upper side of the vapor channel cover. Again, then a one-piece design is provided in particular of metal.
  • the components of the fan base plate, vapor duct cover and air duct cover are three separate components.
  • the air duct cover is made of plastic, the advantages of appropriate mounting options, such as Anschraubdome, snap hooks, etc. can be maintained.
  • the Wrasenkanalabdeckung is designed so that the necessary contour for generating the Venturi effect is ensured, especially when the hood part is integrated on the top of Wrasenkanalabdeckung. In this regard, then the nozzle function for the exhaust duct is met.
  • Another advantage is the fact that the components formed from sheet metal, in particular the hood part and the fan base plate and in particular the Wrasenkanalabdeckung are modifiable and assigned for different device classes or device types and can not be confused in the production.
  • Fig. 1 is in a front view designed as a baking oven 1 cooking appliance and thus shown as a domestic appliance for preparing food.
  • the oven 1 comprises a cooking chamber 2 which is bounded by walls of a muffle 3.
  • the muffle 3 On the front side, the muffle 3 has a loading opening, which can be closed by a door 4.
  • an operating device 5 is formed, which may have operating elements and a display unit. Both the position of the operating device and the number, the position and the shape and the functionality of the controls and the display unit is merely exemplary.
  • the oven 1 comprises a merely symbolized by a block image device 6 for blowing fumes from the oven. 1
  • a blower is provided with which this suction takes place from the cooking chamber 2. Only through components of the device 6 is then a blowing through a gap or more column 7, which are formed above the door 4 and below the control panel of the operating device 5, performed. Again, it can be provided that this front-side blowing of the vapors can also be done in addition to other places or instead at other locations of the oven 1.
  • Fig. 2 is a simplified and schematic sectional view of the cooking appliance 1 according to Fig.1 shown along the section line II-II.
  • the door 4 has an outer door panel 44 and a spaced apart inner door panel 45. In between, an air space or free space 46 is formed.
  • the door 4 may also have at least one intermediate disc.
  • the door 4 is ventilated and has for this purpose a ventilation device. This allows air to enter the door 4, in particular on a bottom according to the arrow shown.
  • an opening 48 is formed, via which the air flow P2 in the door 4 can escape again.
  • the openings at the top and bottom can be closed with flaps.
  • the device 6 comprises a fan base plate 8, which is integrally formed from sheet metal and shaped and embossed accordingly.
  • the fan base plate 8 is arranged outside of the cooking chamber 2 and above a ceiling wall 9 of the muffle 3, wherein in particular still appropriate insulating and insulating material can be arranged therebetween.
  • the fan base plate 8 has a recess 10 in which a hole 11 is present. About this hole 11 are sucked out of the cooking chamber 2 by means of a blower, not shown, which is positioned in the region 12. In this regard, a vapor channel 10a is formed.
  • the device 6 further comprises a vapor channel cover 13, which is also formed in the embodiment of metal and represents a metal plate.
  • the device 6 comprises an air duct cover 14, which is made as a one-piece component made of plastic.
  • the air duct cover 14 has a front part 15, which is hood-shaped in cross section. On an inner side 16 corresponding webs 17, 18, 19 and 20 are formed. These are oriented in the direction of flow.
  • an exhaust duct 22 is formed between an upper side 21 of the vapor channel cover 13 and the portion 15 of the duct cover 14.
  • a housing part is formed, which covers the fan, not shown, in particular the fan wheel.
  • a ramp 25 extends on the upper side 21 of the integrally formed vapor channel cover 13 in the front region 24 substantially over the entire width (x direction).
  • the ramp 25 shows in terms of their shape in cross-section from its rear end 26 to its front end 27 increasing or thickening profile.
  • the ramp 25 is formed over the entire width at the respective locations in the z-direction in each case with the same height.
  • the fan base plate 8 has at its front end 28 a hood part 29, which is formed in one piece and is formed integrally with the fan base plate 8. It is thus integrated in the fan base plate.
  • This hood part 29 is formed of metal and represents a sheet metal part. It is designed in cross-section (x-y plane) with an inverted U-profile.
  • the vapor channel cover 13 is arranged on the fan base plate 8, so that the ramp 25 is located under the hood part 29.
  • the hood part 29 has a depth in the z-direction that is substantially smaller than the width in the x-direction.
  • the hood part 29 has an edge edge reinforcement 30 in the form of a folding strip 31 at a front-side upper edge 30. This is formed integrally with the hood part 29, and bent accordingly. It is bent in the direction of the upper side 32 and lies at least partially on this outer side upper side 32.
  • the exhaust air duct 22 is thus also formed between the upper side of the vapor channel cover 13 in the region of the ramp 25 and the hood part 29. In this area, therefore, the hood part 29 covers the exhaust duct 22 from above.
  • the device 6 thus virtually comprises a front outlet 33, which is formed quasi by the front side 30 of the hood part 29 and the front edge 24 of the vapor channel cover 13.
  • the already mentioned air duct cover 14 has an insertion flange 35 and a stop edge 36 on a front edge 34. This is formed and shaped so that in the assembled state of the components of this Ein Industriesflansch 35 engages a rear edge 37 of the hood part 29 and hineinerstreckt into the hood part 29 and this rear edge 37 rests against the stop edge 36.
  • the duct cover 14 no longer extends to the front outlet 33 of the exhaust duct 22, but ends set back.
  • the hood part 29 thus forms in the z-direction the forwardly formed extension of the duct cover 14.
  • the particular flush merging of the hood part 29 and the duct cover 14 in this regard also creates a mechanically stable connection and positioning and quasi a sealing arrangement.
  • a vertical side 38 and a further vertical side 39 are shown in addition to the upper side 32.
  • Fig. 4 is an enlarged view of a portion of the device 6 according to Fig. 3 shown.
  • the geometric shape of the ramp 25 can be seen.
  • the folded configuration of the hood part 29 can be seen with the fold strip 31.
  • Fig. 5 the assembled state of the fan bottom plate 8 with the vapor channel cover 13 is shown. It can be seen that the vapor channel cover 13 is virtually inserted into lateral insertion slots 40 of the fan base plate 8. It comes positionally lying so that the recess 10 are thus covered by the vapor channel cover 13. In addition, it can be seen that the ramp 25 is positioned under the hood part 29 and thereby virtually covered.
  • the air duct cover 14 is shown in the illustration Fig. 4 not shown, but it would come to rest with its front edge 34, the Ein manufacturedflansch 35 and the stop edge 36 at the rear edge 37 of the hood part 29.
  • a first embodiment of the duct cover 14 is shown.
  • a second embodiment of a duct cover 14 ' which could also be mounted compatible instead of the duct cover 14. Due to the different air duct covers 14 and 14 'different device classes or different types of ovens can be realized. This is to be seen in view of the particular fan to be used and, where appropriate, other requirements.
  • a front partial area 15 'and a rear partial area 23' are also provided here.
  • the connection with the hood part 29 is analogous to the embodiment according to the air duct cover 14, so that here also at the front edge 34, an insertion flange 35 and a stop web or a stop edge 36 are provided.
  • a further embodiment of a device 6 is shown in a further exploded view.
  • a fan base plate 8 as a sheet metal component
  • a vapor channel cover 13 is also formed as a sheet metal component
  • a duct cover 14 made of plastic.
  • the hood part 29 is not integrated into the fan base plate 8, but is a separate component. It is also designed here as a sheet metal component and has the fold strip 31 on the front side upper edge 30.
  • the fan base plate 8, the vapor channel cover 13 and the air shaft cover 14 are separate components. Again, these can be interconnected and fixed in position by connectors and / or centering pins or the like. Accordingly, the hood part 29 with the fan base plate 8 by connectors or the like to position it.
  • the depression 10 extends almost to the front end 28 of the fan base plate 8. Furthermore, it is provided here that 25 slots 41, 42 and 43 are formed in the ramp, via which also an outlet of gaseous media is made possible.
  • the ramp 25 is arranged with its front end 27 quasi at the front end of the vapor duct cover 13. Again, it extends again essentially across the entire width.
  • the ramp 25 is arranged with its front end 27 quasi at the front end of the vapor duct cover 13. Again, it extends again essentially across the entire width.
  • Fig. 7 an additional embodiment of the device 6 is shown in an exploded view.
  • the ramp 25 is integrated into the fan base plate 8 and formed integrally therewith. It is also arranged here in a front-side front area.
  • the recess 10 is designed so that it extends to the front edge 28 of the fan base plate 8. The ramp 25 is thus arranged in this recess 10 or quasi sunk arranged.
  • the hood part 29 is integrated into the vapor channel cover 13, as shown in FIG Fig. 7 formed in the front area as a front-side conclusion.
  • the ramp 25 is arranged under the hood part 29, which, moreover, also in the embodiment according to FIG Fig. 6 the case is.
  • a nozzle is thus formed quasi by the shape and position of the hood part 29 and the ramp 25.
  • The is arranged at the front outlet 33 and quasi integrated into the device 6.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
EP11185047A 2010-10-25 2011-10-13 Dispositif de soufflage de vapeurs à partir d'un appareil de cuisson ainsi qu'appareil de cuisson doté d'un tel dispositif Withdrawn EP2444737A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010042891 DE102010042891A1 (de) 2010-10-25 2010-10-25 Vorrichtung zur Ausblasung von Wrasen aus einem Gargerät sowie Gargerät mit einer derartigen Vorrichtung

Publications (1)

Publication Number Publication Date
EP2444737A1 true EP2444737A1 (fr) 2012-04-25

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EP11185047A Withdrawn EP2444737A1 (fr) 2010-10-25 2011-10-13 Dispositif de soufflage de vapeurs à partir d'un appareil de cuisson ainsi qu'appareil de cuisson doté d'un tel dispositif

Country Status (2)

Country Link
EP (1) EP2444737A1 (fr)
DE (1) DE102010042891A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2899468A1 (fr) 2014-01-27 2015-07-29 BSH Hausgeräte GmbH Appareil de cuisson doté d'un canal d'aération et d'un canal d'alimentation
EP3760931A1 (fr) * 2019-07-04 2021-01-06 Electrolux Appliances Aktiebolag Four de cuisson comportant une cavité de four et un canal de refroidissement
EP4215822A1 (fr) * 2022-01-21 2023-07-26 Whirlpool Corporation Appareil de cuisson comprenant un déflecteur

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3889099A (en) * 1974-07-31 1975-06-10 Gen Electric Door cooling system
DE8912878U1 (de) * 1989-10-31 1990-01-04 Bosch-Siemens Hausgeräte GmbH, 8000 München Backofen
EP0752561A1 (fr) * 1995-07-04 1997-01-08 Bosch-Siemens HausgerÀ¤te GmbH Fuir de cuisson
DE10222878A1 (de) 2002-05-23 2003-12-04 Bsh Bosch Siemens Hausgeraete Gargerät mit einem Wrasenkanal
EP2278227A2 (fr) * 2009-07-15 2011-01-26 Miele & Cie. KG Appareil ménager
EP2363648A2 (fr) * 2010-03-02 2011-09-07 Samsung Electronics Co., Ltd. Four

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3889099A (en) * 1974-07-31 1975-06-10 Gen Electric Door cooling system
DE8912878U1 (de) * 1989-10-31 1990-01-04 Bosch-Siemens Hausgeräte GmbH, 8000 München Backofen
EP0752561A1 (fr) * 1995-07-04 1997-01-08 Bosch-Siemens HausgerÀ¤te GmbH Fuir de cuisson
DE10222878A1 (de) 2002-05-23 2003-12-04 Bsh Bosch Siemens Hausgeraete Gargerät mit einem Wrasenkanal
EP2278227A2 (fr) * 2009-07-15 2011-01-26 Miele & Cie. KG Appareil ménager
EP2363648A2 (fr) * 2010-03-02 2011-09-07 Samsung Electronics Co., Ltd. Four

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2899468A1 (fr) 2014-01-27 2015-07-29 BSH Hausgeräte GmbH Appareil de cuisson doté d'un canal d'aération et d'un canal d'alimentation
DE102014201424A1 (de) 2014-01-27 2015-07-30 BSH Hausgeräte GmbH Gargerät mit einem Luftschacht und einem Zuleitkanal
EP3760931A1 (fr) * 2019-07-04 2021-01-06 Electrolux Appliances Aktiebolag Four de cuisson comportant une cavité de four et un canal de refroidissement
EP4215822A1 (fr) * 2022-01-21 2023-07-26 Whirlpool Corporation Appareil de cuisson comprenant un déflecteur

Also Published As

Publication number Publication date
DE102010042891A1 (de) 2012-04-26

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