EP2235446A2 - Cooker-fan unit - Google Patents

Cooker-fan unit

Info

Publication number
EP2235446A2
EP2235446A2 EP08859394A EP08859394A EP2235446A2 EP 2235446 A2 EP2235446 A2 EP 2235446A2 EP 08859394 A EP08859394 A EP 08859394A EP 08859394 A EP08859394 A EP 08859394A EP 2235446 A2 EP2235446 A2 EP 2235446A2
Authority
EP
European Patent Office
Prior art keywords
air
fluid
passage openings
gargerätegebläsevorrichtungseinheit
unit
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
EP08859394A
Other languages
German (de)
French (fr)
Other versions
EP2235446B1 (en
Inventor
Margit Andreas
Rainer Lebacher
Peter Mallinger
Richard Mierniczak
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
Priority claimed from DE200710061286 external-priority patent/DE102007061286A1/en
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to EP08859394.2A priority Critical patent/EP2235446B1/en
Priority to PL08859394T priority patent/PL2235446T3/en
Publication of EP2235446A2 publication Critical patent/EP2235446A2/en
Application granted granted Critical
Publication of EP2235446B1 publication Critical patent/EP2235446B1/en
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
    • F24C15/32—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

Definitions

  • the invention relates to a Garellogebläsevorlegissaku according to the preamble of claim 1.
  • a wall unit is provided in the rear of the cooking chamber of the oven, which defines a behind it, a fan with annular radiator receiving Gebläse- space and the upper and lower each by a plurality of holes having formed passage openings.
  • fluid in the form of rectangular tabs are arranged on the wall unit, which protrude into the fan chamber and are respectively placed at the fluidic rear end of the associated passage opening and thus outside the flow path between the fan and passage opening.
  • the incoming here partial air flow bounces off the corresponding tab and should be deflected as intended and properly pass through the passage opening into the cooking chamber, where reflected all deflected air flows to the cooking chamber front surface (oven door) and the cooking chamber and the food stored there heated to get to the fan upstream inlet opening.
  • the object of the invention is, in particular, to provide a cooking appliance fan unit for a generic fan device with improved properties in terms of flow conditions in a cooking chamber, in particular in an oven with hot air circulation and with an electric heater surrounding a fan unit.
  • the passage openings are largely individualized air-guiding elements, preferably in the form of transverse surfaces projecting into the air flow and influencing this air flow in the flow behavior, and / or in the form of separate air ducts.
  • this flowing air scoring send air conducting a "rectified", largely homogeneous outflow through the various ports can be achieved in the sense that this example strong heated air flows neither substantially in the direction of the cool side walls of the cooking chamber and is cooled directly to the cooking product stored in the cooking flows and eg selectively heated too much or charred in extreme cases Variety of according to the direction of rotation of the blower tangenzial flowing out part-flows that form in the fan room behind the cooking chamber limiting wall unit (also called baffle wall) an approximately chaotic flow amount.
  • the fluid is designed as opposed to the respective air flow transverse surfaces formed in the direction of the respective, outgoing from the fan airflow at least in front of the associated passage openings.
  • a "transverse surface” is to be understood as meaning, in particular, a surface which, when projected onto the cross-sectional surface enclosing the center of the fluid, for example the air channel, has a two-dimensional extent which is at most 45 °, advantageously not more than 20 ° and preferably not more than 10 ° .sup.th
  • the fluid can be designed as a means for compensating for different spatially distributed flow velocities in the air duct.
  • the air-guiding unit has air ducts as fluid, which are led to the individual passage openings, wherein it can be provided that the aforementioned transverse surfaces are arranged at the end of
  • the passage openings are in particular at the edge at least partially by collar-like manner from the cooking chamber rearwardly bounding wall unit protruding fluid enclosed.
  • an embodiment of the invention has proven to be advantageous in which the passage opening edge in the main flow direction fluid with varying contour, in the subsequent corner area fluid with a largely gently sloping contour and the rest of the peripheral area fluid with constant, especially low collar height.
  • the passage openings opening into the cooking chamber are associated with individual air ducts, a substantial, constructive and cost-effective simplification can be achieved according to the invention, if only one, all passage openings common air channel between the wall unit and the rear base wall is provided and if the passage openings are at least predominantly equipped with transverse surfaces having fluids.
  • Fig. 1 shows the front view of a cooking chamber air passage unit
  • FIG. 2 is an enlarged detail of FIG. 1.
  • the cooking chamber passage unit 36.1 shown as a detail in FIG. 1 is shown with a view from the oven front side, that is to say from a cooking space. It has in the center of a suction opening with a fan body behind it. In the quadrants are passage openings 48.3 and 48.4 and 44.3 and 44.4, of which those in the right, lower quadrant consists of two approximately square openings 44.4. With dashed arrows, the direction of flow of the blower 66 with direction of rotation according to the arrow emanating part-air flows symbolically indicated.
  • the flow means 122.1 and 122.2 have in the flow cross-section a varying, partly step-shaped stepped and partly gently undulating contour.
  • the transverse surface 124. 1 of the fluid 122. 1 directly adjoining the passage opening 44. 4 is formed by staircase-shaped steps 124. 2 and by a contoured step 124. 3 that is gently undulating to an adjacent side of the cooking chamber, which moves the corner region of the passage openings 44 a contour 124.4 with a constant low collar height h, which moves the remaining circumference of each passage opening 44.4 like a collar.
  • gentle contour stage 124.3 has a cut 124.5.

Abstract

The cooker-fan unit has an air-directing unit in ventilating communication with a cooking compartment (12) of the cooker, which air-directing unit is delimited from the cooking compartment by a cooking-compartment air-passage unit or wall unit (36) and has through-passage openings (44, 48) for heated air streams which are generated by a fan and have their flow routed into the cooking compartment by air-directing elements. According to the invention, it is provided that, within an air-directing unit having at least one air-directing element, the through-passage openings (44, 48), in accordance with the predetermined flow direction, are directly assigned flow means which intercept the incoming flow and feed air streams to the through-passage openings (44, 48) in the same direction and with diversions.

Description

Gargerätegebläsevorrichtungseinheit Gargerätegebläsevorrichtungseinheit
Die Erfindung geht aus von einer Gargerätegebläsevorrichtungseinheit nach dem Ober- begriff des Patentanspruches 1.The invention relates to a Gargerätegebläsevorrichtungseinheit according to the preamble of claim 1.
Bei einer bekannten Gebläsevorrichtung (EP 1793171 A1) für einen Heißluftbackofen ist im hinteren Teil des Garraumes des Backofens eine Wandeinheit vorgesehen, die einen dahinter liegenden, ein Gebläse mit ringförmigem Heizkörper aufnehmenden Gebläse- räum begrenzt und die obere und untere jeweils durch eine Vielzahl von Löchern gebildete Durchlassöffnungen aufweist. In der Nähe dieser Durchlassöffnungen sind Strömungsmittel in Form von rechtwinkligen Laschen an der Wandeinheit angeordnet, die in den Gebläseraum hineinragen und jeweils an dem strömungstechnisch hinteren Ende der zugeordneten Durchlassöffnung und damit außerhalb des Strömungspfades zwischen Gebläse und Durchlassöffnung platziert sind. Der hier ankommende Teil-Luftstrom prallt an der entsprechenden Lasche ab und soll bestimmungsgemäß umgelenkt werden und durch die Durchlassöffnung hindurch ordnungsgemäß in den Garraum gelangen, wo alle umgelenkten Luftströme an der Garraum-Frontfläche (Backofentür) reflektiert und den Garraum durchströmend und das dort gelagerte Gargut erhitzend zu der dem Gebläse vorgelagerten Einlassöffnung gelangen sollen.In a known blower device (EP 1793171 A1) for a hot air oven, a wall unit is provided in the rear of the cooking chamber of the oven, which defines a behind it, a fan with annular radiator receiving Gebläse- space and the upper and lower each by a plurality of holes having formed passage openings. In the vicinity of these passage openings fluid in the form of rectangular tabs are arranged on the wall unit, which protrude into the fan chamber and are respectively placed at the fluidic rear end of the associated passage opening and thus outside the flow path between the fan and passage opening. The incoming here partial air flow bounces off the corresponding tab and should be deflected as intended and properly pass through the passage opening into the cooking chamber, where reflected all deflected air flows to the cooking chamber front surface (oven door) and the cooking chamber and the food stored there heated to get to the fan upstream inlet opening.
Die Aufgabe der Erfindung besteht insbesondere darin, eine Gargerätegebläsevorrich- tungseinheit für eine gattungsgemäße Gebläsevorrichtung mit verbesserten Eigenschaften hinsichtlich von Strömungsverhältnissen in einem Garraum bereit zu stellen, insbe- sondere bei einem Backofen mit Heißluftumwälzung und mit einem eine Gebläseeinheit umgebenden elektrischen Heizkörper.The object of the invention is, in particular, to provide a cooking appliance fan unit for a generic fan device with improved properties in terms of flow conditions in a cooking chamber, in particular in an oven with hot air circulation and with an electric heater surrounding a fan unit.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Patentanspruches 1 gelöst, während vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung den Unter- ansprüchen entnommen werden können. Es wird eine Gargerätegebläsevorrichtungseinheit vorgeschlagen, bei welcher innerhalb einer mindestens ein Luftleitelement aufweisenden Luftleiteinheit den Durchlassöffnungen entsprechend der vorgegebenen Strömungsrichtung die ankommende Strömung erfassende Strömungsmittel unmittelbar zugeordnet sind, die den Durchlassöffnungen die Luftströmungen gleichgerichtet und umgeleitet zuführen. Damit sind erfindungsgemäß den Durchlassöffnungen weitgehend individuell Luftleitelemente vorzugsweise in Form von als in die Luftströmung ragende und diese Luftströmung im Strömungsverhalten beeinflussenden Querflächen und/oder in Form von separaten Luftkanälen zugeordnet. Durch solche aktiv im jeweiligen Strömungspfad befindlichen die vom Gebläse in Richtung der betreffenden Durchlassöffnung strömende Teil-Luftströmung, diese strömende Luft erfas- senden Luftleitelemente kann eine „gleichgerichtete", weitgehend homogene Ausströmung durch die verschiedenen Durchlassöffnungen erreicht werden in dem Sinne, dass diese z.B. stark erhitzte Luft weder wesentlich in Richtung der kühlen Seitenwände des Garraumes strömt und dort abgekühlt wird noch direkt das im Garraum gelagerte Gargut anströmt und z.B. punktuell zu stark erhitzt bzw. im Extremfall verkohlt. Hierbei spielt der Umstand eine Rolle, dass die vom Gebläse ausgehende Luftströmung eine Vielzahl von entsprechend der Drehrichtung des Gebläses tangenzial abströmenden Teil-Strömungen enthält, die in dem Gebläseraum hinter der den Garraum begrenzenden Wandeinheit (auch Prallwand genannt) ein annähernd chaotisches Strömungsgemenge bilden.This object is achieved by the features of claim 1, while advantageous embodiments and further developments of the invention can be taken from the subclaims. There is proposed a Gargerätegebläsevorrichtungseinheit in which within an at least one air guide element having air guide the passage openings according to the predetermined flow direction, the incoming flow sensing fluid are assigned directly, the rectified the air flows rectified and fed to the passage openings. Thus, according to the invention, the passage openings are largely individualized air-guiding elements, preferably in the form of transverse surfaces projecting into the air flow and influencing this air flow in the flow behavior, and / or in the form of separate air ducts. Through such actively located in the respective flow path flowing from the blower in the direction of the respective passage opening part-air flow, this flowing air scoring send air conducting a "rectified", largely homogeneous outflow through the various ports can be achieved in the sense that this example strong heated air flows neither substantially in the direction of the cool side walls of the cooking chamber and is cooled directly to the cooking product stored in the cooking flows and eg selectively heated too much or charred in extreme cases Variety of according to the direction of rotation of the blower tangenzial flowing out part-flows that form in the fan room behind the cooking chamber limiting wall unit (also called baffle wall) an approximately chaotic flow amount.
Gemäß einer bevorzugten Ausführungsform sind die Strömungsmittel als entgegen des jeweiligen Luftstroms stehende Querflächen ausgebildet in Richtung des jeweiligen, vom Gebläse ausgehenden Luftstromes zumindest vor den zugeordneten Durchlassöffnungen angeordnet. Unter einer „Querfläche" soll in diesem Zusammenhang insbesondere eine Fläche verstanden werden, welche, wenn sie auf die den Mittelpunkt des Strömungsmit- tels einschließende Querschnittsfläche, z.B. des Luftkanals projiziert wird, eine zweidimensionale Erstreckung aufweist. Hierbei bildet die Querfläche mit dieser Querschnittsfläche einen Winkel, der maximal 45°, vorteilhaft maximal 20° und bevorzugt maximal 10° beträgt. Besonders vorteilhaft weisen die Querfläche und die Querschnittsfläche die gleiche Ausrichtung auf. Mit einem derartigen Strömungsmittel wird eine gezielte Änderung von zumindest einer Strömungseigenschaft der ankommenden Luftströmung, z.B. eines in einem weitgehend geschlossenen Luftkanal strömenden Luftstromes erzielt. Insbesondere kann das Strömungsmittel als Mittel zum Ausgleichen von verschiedenen, räumlich verteilten Strömungsgeschwindigkeiten im Luftkanal ausgebildet sein. Hierbei kann erfindungsgemäß vorgesehen sein, dass die Luftleiteinheit als Strömungsmittel Luftkanäle aufweist, die zu den einzelnen Durchlassöffnungen geführt sind, wobei vorgesehen sein kann, dass am Ende dieser Luftkanäle die vorgenannten Querflächen angeordnet sind.According to a preferred embodiment, the fluid is designed as opposed to the respective air flow transverse surfaces formed in the direction of the respective, outgoing from the fan airflow at least in front of the associated passage openings. In this context, a "transverse surface" is to be understood as meaning, in particular, a surface which, when projected onto the cross-sectional surface enclosing the center of the fluid, for example the air channel, has a two-dimensional extent which is at most 45 °, advantageously not more than 20 ° and preferably not more than 10 ° .sup.th With such a fluid is a targeted change of at least one flow characteristic of the incoming air flow, eg one in a In particular, the fluid can be designed as a means for compensating for different spatially distributed flow velocities in the air duct. In this case, it can be provided according to the invention that the air-guiding unit has air ducts as fluid, which are led to the individual passage openings, wherein it can be provided that the aforementioned transverse surfaces are arranged at the end of these air ducts.
Gemäß einer vorteilhaften Weiterbildung der Erfindung sind die Durchlassöffnungen insbesondere randseitig zumindest teilweise von kragenartig von der den Garraum nach hinten begrenzenden Wandeinheit abstehenden Strömungsmitteln umzogen. Damit wird einerseits eine fertigungstechnisch einfache Durchführung hinsichtlich der Durchlassöffnun- gen und der randseitigen Strömungsmittel in z.B. kombinierten Stanz- und Biegeverfahren erhalten und andererseits wird sichergestellt, dass durch den unmittelbaren Anschluss von Strömungsmitteln zur Durchlassöffnung in Strömungsrichtung nach den Strömungsbarrieren bildenden Strömungsmitteln keine weiteren, die weitere Strömung beeinflussende Reflektionsf lachen vorhanden sind.According to an advantageous embodiment of the invention, the passage openings are in particular at the edge at least partially by collar-like manner from the cooking chamber rearwardly bounding wall unit protruding fluid enclosed. On the one hand, a production-technically simple implementation with regard to the passage openings and the edge-side fluid in, for example, obtained combined punching and bending process and on the other hand it is ensured that no further, the further flow influencing Reflektionsf laugh are present by the direct connection of fluid to the passage opening in the flow direction after the flow barriers forming fluids.
Die Versuche haben weiterhin ergeben, dass eine optimal gleich richtende Kontur der in die Strömung ragenden und diese mehr oder weniger hemmenden und umlenkenden Strömungsmittel erreicht wird, wenn die kragenartigen Strömungsmittel zumindest abschnittsweise sanfte, z.B. wellenförmig variierende und damit abgestufte Konturstufen aufweisen und insbesondere wenn die Strömungsmittel zur benachbarten Garraumbegrenzung hin abfallende Konturstufen besitzen.The experiments have further shown that an optimally equal directing contour of the flow-projecting and more or less inhibiting and deflecting fluid is achieved when the collar-like fluid is at least partially gentle, e.g. Having wavy varying and thus stepped contour stages and in particular when the fluid to the adjacent cooking space boundary have sloping contour levels.
Aufgrund der nicht gleichgerichteten Strömungsverhältnisse z.B. der tangentialen Gebläseströme und der diese inhomogen leitenden Begrenzungen des Gebläseraumes hat sich eine Ausgestaltung der Erfindung als vorteilhaft erwiesen, bei der die Durchlassöffnung randseitig in Hauptanströmungsrichtung Strömungsmittel mit variierender Kontur, im anschließenden Eckenbereich Strömungsmittel mit weitgehend sanft abfallender Kontur und im übrigen Umfangsbereich Strömungsmittel mit konstanter, insbesondere niedriger Kragenhöhe aufweist.Due to the non-rectified flow conditions, e.g. The tangential blower flows and these inhomogeneously conductive boundaries of the fan chamber, an embodiment of the invention has proven to be advantageous in which the passage opening edge in the main flow direction fluid with varying contour, in the subsequent corner area fluid with a largely gently sloping contour and the rest of the peripheral area fluid with constant, especially low collar height.
Während gemäß einer Einzelheit der Erfindung den in den Garraum einmündenden Durchlassöffnungen individuelle Luftkanäle zugeordnet sind, kann eine wesentliche, konstruktive und kostengünstige Vereinfachung erfindungsgemäß dadurch erreicht werden, wenn nur ein, allen Durchlassöffnungen gemeinsamer Luftkanal zwischen der Wandeinheit und der rückwärtigen Grundwandung vorgesehen ist und wenn die Durchlassöffnungen zumindest überwiegend mit Querflächen aufweisenden Strömungsmitteln ausgestattet sind.While, according to a detail of the invention, the passage openings opening into the cooking chamber are associated with individual air ducts, a substantial, constructive and cost-effective simplification can be achieved according to the invention, if only one, all passage openings common air channel between the wall unit and the rear base wall is provided and if the passage openings are at least predominantly equipped with transverse surfaces having fluids.
Es zeigen:Show it:
Fig. 1 die frontseitige Ansicht einer Garraumluftdurchlasseinheit undFig. 1 shows the front view of a cooking chamber air passage unit and
Fig. 2 eine vergrößerte Einzelheit aus Fig. 1.FIG. 2 is an enlarged detail of FIG. 1.
Die in Figur 1 als Einzelheit dargestellte Garraumluftdurchlasseinheit 36.1 ist mit Sicht von der Ofenfrontseite, also von einem Garraum her gezeigt. Sie besitzt im Zentrum eine Ansaugöffnung mit einem dahinter liegenden Gebläsekörper. In den Quadranten befinden sich Durchlassöffnungen 48.3 und 48.4 sowie 44.3 und 44.4, von denen diejenige im rechten, unteren Quadranten aus zwei etwa quadratischen Öffnungen 44.4 besteht. Mit gestrichelten Pfeilen ist symbolhaft die Strömungsrichtung der vom Gebläse 66 mit Drehrichtung gemäß Pfeil ausgehenden Teil-Luftströme angedeutet. Es ist gestrichelt dargestellt, dass sich im Strömungspfad dieser Luftströme vor den zugeordneten Durchlassöffnungen 44.3, 44.4, 48.3, 48.4 die Strömungsmitte 122.1 , 122.2, 122.3 befinden, wie anhand der Strömungsmitte 122.1 in Figur 11 vergrößert dargestellt, die die rückwärtige Sei- te der Garraumluftdurchlasseinheit 36.1 zeigt. In Figur 10 sind im linken oberen Quadranten zusätzliche, im Wesentlichen horizontal angeordnete Durchlassöffnungen 48.5 vorgesehen, die ebenfalls mit Strömungsmitteln 122.3 kragenartig umzogen sind.The cooking chamber passage unit 36.1 shown as a detail in FIG. 1 is shown with a view from the oven front side, that is to say from a cooking space. It has in the center of a suction opening with a fan body behind it. In the quadrants are passage openings 48.3 and 48.4 and 44.3 and 44.4, of which those in the right, lower quadrant consists of two approximately square openings 44.4. With dashed arrows, the direction of flow of the blower 66 with direction of rotation according to the arrow emanating part-air flows symbolically indicated. It is shown by dashed lines, that in the flow path of these air streams in front of the associated passage openings 44.3, 44.4, 48.3, 48.4 the flow center 122.1, 122.2, 122.3 are located, as shown enlarged by the flow center 122.1 in Figure 11, the rear side of the cooking chamber passage unit 36.1 shows. In FIG. 10, additional, substantially horizontally arranged passage openings 48.5 are provided in the left-hand upper quadrant, which are likewise encased collar-like with flow means 122.3.
Die Strömungsmittel 122.1 und 122.2 besitzen im Strömungsquerschnitt eine variierende, zum Teil treppenförmig gestufte und zum Teil sanft wellenförmige Kontur auf. Gemäß Figur 11 wird die in die Luftströmung ragende Querfläche 124.1 des unmittelbar an die Durchlassöffnung 44.4 anschließenden Strömungsmittels 122.1 gebildet durch treppen- förmige Stufen 124.2 sowie durch eine zu einer benachbarten Garraumseitenfläche sanft wellenförmig gestufte Konturstufe 124.3, die den Eckenbereich der Durchlassöffnungen 44.4 umzieht und übergeht in eine Kontur 124.4 mit konstanter niedriger Kragenhöhe h, die den restlichen Umfang jeder Durchlassöffnung 44.4 kragenartig umzieht. Beim Strömungsmittel 122.1 besitzt die sanfte Konturstufe 124.3 einen Einschnitt 124.5. Wie in Figur 1 durch Durchströmungspfeile angedeutet bewirken die erwähnten Strömungsmittel gleichgerichtete und senkrecht zur Garraumluftdurchlasseinheit 36.1 gerichtete Luftströme, die in den Garraum 12 gelangen. Einige der Durchlassöffnungen, nämlich die mit 48.3 und 48.5 bezeichneten besitzen unmittelbar randseitig nur konstant hohe Strömungsmittel 122.4. The flow means 122.1 and 122.2 have in the flow cross-section a varying, partly step-shaped stepped and partly gently undulating contour. According to FIG. 11, the transverse surface 124. 1 of the fluid 122. 1 directly adjoining the passage opening 44. 4 is formed by staircase-shaped steps 124. 2 and by a contoured step 124. 3 that is gently undulating to an adjacent side of the cooking chamber, which moves the corner region of the passage openings 44 a contour 124.4 with a constant low collar height h, which moves the remaining circumference of each passage opening 44.4 like a collar. In fluid 122.1, gentle contour stage 124.3 has a cut 124.5. As indicated in Figure 1 by flow arrows cause the aforementioned fluid rectified and directed perpendicular to the cooking air passage unit 36.1 air currents that reach the cooking chamber 12. Some of the passage openings, namely those designated 48.3 and 48.5, have immediately at the edge only constant high fluid 122.4.

Claims

PATENTANSPRÜCHE
1. Gargerätegebläsevorrichtungseinheit mit einer Luftleiteinheit (56) in lüftungstechnisch kommunizierender Verbindung mit einem Garraum (12) eines Gargerätes (10), welche Luftleiteinheit (56) durch eine Garraumluftdurchlasseinheit bzw.1. Gargerätegebläsevorrichtungseinheit with an air guide unit (56) in ventilation-communicating connection with a cooking chamber (12) of a cooking appliance (10), which air guide unit (56) by a cooking chamber air passage unit or
Wandeinheit (36, 40) vom Garraum (12) begrenzt ist und Durchlassöffnungen (44, 48, 52) für von einem Gebläsekörper (66) generierte und erhitzte Luftströme aufweist, die durch Luftleitelemente bezüglich ihrer Strömung in den Garraum (12) gelenkt werden, dadurch gekennzeichnet, dass innerhalb einer mindestens ein Luftleitelement aufweisenden Luftleiteinheit (56) den Durchlassöffnungen (44, 48,Wall unit (36, 40) from the cooking chamber (12) is limited and passage openings (44, 48, 52) for a blower body (66) generated and heated air streams, which are directed by air guide elements with respect to their flow in the cooking chamber (12), characterized in that within a at least one air guide element having air guide unit (56) the passage openings (44, 48,
52) entsprechend der vorgegebenen Strömungsrichtung die ankommende Strömung erfassende Strömungsmitteln (122, 128, 80, 82, 84, 86, 88, 90) unmittelbar zugeordnet sind, die den Durchlassöffnungen (44, 48, 52) die Luftströmungen gleichgerichtet und umgeleitet zuführen.52) corresponding to the predetermined flow direction, the incoming flow detecting fluid (122, 128, 80, 82, 84, 86, 88, 90) are directly associated with the passage openings (44, 48, 52) the air flows rectified and diverted supply.
2. Gargerätegebläsevorrichtungseinheit nach Anspruch 1 , dadurch gekennzeichnet, dass die Strömungsmittel (122, 128, 122.1 , 122.2, 122.3) in Richtung des jeweiligen, vom Gebläse (66) ausgehenden Luftstromes zumindest vor den zugeordneten Durchlassöffnungen (44, 48) angeordnet sind.2. Gargerätegebläsevorrichtungseinheit according to claim 1, characterized in that the fluid (122, 128, 122.1, 122.2, 122.3) in the direction of the respective, from the fan (66) outgoing air flow at least in front of the associated passage openings (44, 48) are arranged.
3. Gargerätegebläsevorrichtungseinheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Luftleiteinheit (56) als Strömungsmittel Luftkanäle (80, 82, 84, 86, 88, 90) aufweist, die zu den einzelnen Durchlassöffnungen (44, 48, 52) geführt sind.3. Gargerätegebläsevorrichtungseinheit according to any one of the preceding claims, characterized in that the air guide unit (56) as a fluid air channels (80, 82, 84, 86, 88, 90) which are guided to the individual passage openings (44, 48, 52) ,
4. Gargerätegebläsevorrichtungseinheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Luftleiteinheit (56) zumindest einen Luftkanal (82, 88) zum Leiten eines Luftstroms und ein Strömungsmittel (122, 128) aufweist, welches eine im Luftkanal (82, 88) angeordnete Querfläche (124, 130) bildet.4. Gargerätegebläsevorrichtungseinheit according to any one of the preceding claims, characterized in that the air guide unit (56) at least one air duct (82, 88) for directing an air flow and a fluid (122, 128), which in the air duct (82, 88) arranged Transverse surface (124, 130) forms.
5. Gargerätegebläsevorrichtungseinheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Durchlassöffnungen (44, 48) insbesondere randseitig zumindest teilweise von kragenartig von der den Garraum (12) nach hinten begrenzenden Wandeinheit (40) abstehenden Strömungsmitteln (122, 128) umzogen sind.5. Gargerätegebläsevorrichtungseinheit according to any one of the preceding claims, characterized in that the passage openings (44, 48) in particular On the edge side at least partially by collar-like from the cooking chamber (12) rearwardly bounding wall unit (40) protruding fluid (122, 128) are moved.
6. Gargerätegebläsevorrichtungseinheit nach Anspruch 5, dadurch gekennzeichnet, dass die kragenartigen Strömungsmittel (122) zumindest abschnittsweise sanfte, zum Beispiel wellenförmig variierende und damit abgestufte Konturstufen (124.3) aufweisen.6. Gargerätegebläsevorrichtungseinheit according to claim 5, characterized in that the collar-like fluid (122) at least partially soft, for example, wavy varying and thus stepped contour stages (124.3).
7. Gargerätegebläsevorrichtungseinheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Strömungsmittel (122) zur benachbarten Garraumseitenfläche (20) hin abfallende Konturstufen (124.2, 124.3) besitzen.7. Gargerätegebläsevorrichtungseinheit according to any one of the preceding claims, characterized in that the fluid (122) to adjacent Garraumseitenfläche (20) down sloping contour stages (124.2, 124.3) have.
8. Gargerätegebläsevorrichtungseinheit nach Anspruch 5 bis 7, dadurch gekennzeichnet, dass die Durchlassöffnung (44, 48, 52) randseitig in Hauptanströmungs- richtung Strömungsmittel (122) mit variierender Kontur (124.2), im anschließenden8. Gargerätegebläsevorrichtungseinheit according to claim 5 to 7, characterized in that the passage opening (44, 48, 52) at the edge in Hauptanströmungs- direction fluid (122) with varying contour (124.2), in the subsequent
Eckenbereich Strömungsmittel (122) mit weitgehend sanft abfallender Kontur (124.3) und im übrigen Umfangsbereich Strömungsmittel mit konstanter, insbesondere niedriger Kragenhöhe (h) aufweist.Corner region fluid (122) having a substantially gently sloping contour (124.3) and in the remaining peripheral area fluid with a constant, in particular low collar height (h).
9. Gargerätegebläsevorrichtungseinheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass nur ein, allen Durchlassöffnungen (44, 48, 52) gemeinsamer Luftkanal zwischen der Wandeinheit (40) und der rückwärtigen Grundwandung (58) vorgesehen ist und dass die Durchlassöffnungen (44, 48, 52) zumindest überwiegend mit Querflächen aufweisenden Strömungsmitteln ausges- tattet sind.9. Gargerätegebläsevorrichtungseinheit according to any one of the preceding claims, characterized in that only one, all the passage openings (44, 48, 52) common air duct between the wall unit (40) and the rear base wall (58) is provided and that the passage openings (44, 48 , 52) are at least predominantly provided with transverse surfaces having fluid.
10. Gargerätegebläsevorrichtungseinheit nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Garraumluftdurchlasseinheit (36.1) im oberen Quadrant der Garraumfläche (24) zusätzliche, vorzugsweise im Wesentlichen ho- rizontal angeordnete Durchlassöffnungen (48.5) aufweist. 10. Gargerätegebläsevorrichtungseinheit according to any one of the preceding claims, characterized in that the Garraumluftdurchlasseinheit (36.1) in the upper quadrant of the Garraumfläche (24) additional, preferably substantially horizontally arranged passage openings (48.5).
EP08859394.2A 2007-12-12 2008-11-13 Cooking oven Active EP2235446B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08859394.2A EP2235446B1 (en) 2007-12-12 2008-11-13 Cooking oven
PL08859394T PL2235446T3 (en) 2007-12-12 2008-11-13 Cooking oven

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP07122979 2007-12-12
DE200710061286 DE102007061286A1 (en) 2007-12-19 2007-12-19 Cooker-fan unit, has through-passage openings directly assigned to flow medium, where medium intercepts incoming flow based on predetermined flow direction and feeds air streams to openings in same direction and with diversions
PCT/EP2008/065476 WO2009074423A2 (en) 2007-12-12 2008-11-13 Cooker-fan unit
EP08859394.2A EP2235446B1 (en) 2007-12-12 2008-11-13 Cooking oven

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EP2235446A2 true EP2235446A2 (en) 2010-10-06
EP2235446B1 EP2235446B1 (en) 2018-01-10

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PL (1) PL2235446T3 (en)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3109558A1 (en) * 2015-06-24 2016-12-28 Electrolux Appliances Aktiebolag Convection heating device for a cooking oven

Families Citing this family (2)

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Publication number Priority date Publication date Assignee Title
EP1970635B1 (en) 2008-06-26 2012-03-21 V-Zug AG Hot air baking oven with baffle plates
US9372005B2 (en) 2012-11-30 2016-06-21 Alto-Shaam, Inc. Heat exchanger for oven

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Publication number Priority date Publication date Assignee Title
KR100988570B1 (en) * 2003-04-10 2010-10-19 삼성전자주식회사 Heating cooker
FR2871556B1 (en) * 2004-06-14 2006-07-28 Seb Sa DEVICE FOR HEATING AN AIR CIRCULATING OVEN
WO2006025133A1 (en) * 2004-08-31 2006-03-09 Sharp Kabushiki Kaisha Heating cooking apparatus
US7411160B2 (en) * 2005-06-01 2008-08-12 Whirlpool Corporation Airflow system for a convection oven
EP1913309A1 (en) * 2005-08-12 2008-04-23 Arcelik Anonim Sirketi A cooking device

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Title
See references of WO2009074423A2 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3109558A1 (en) * 2015-06-24 2016-12-28 Electrolux Appliances Aktiebolag Convection heating device for a cooking oven

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ES2661885T3 (en) 2018-04-04
TR201802103T4 (en) 2018-03-21
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WO2009074423A2 (en) 2009-06-18
PL2235446T3 (en) 2018-06-29

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