DE2410646A1 - Hot-air circulating roasting, baking and grilling oven - has deflector plate forming top air duct with passages - Google Patents

Hot-air circulating roasting, baking and grilling oven - has deflector plate forming top air duct with passages

Info

Publication number
DE2410646A1
DE2410646A1 DE2410646A DE2410646A DE2410646A1 DE 2410646 A1 DE2410646 A1 DE 2410646A1 DE 2410646 A DE2410646 A DE 2410646A DE 2410646 A DE2410646 A DE 2410646A DE 2410646 A1 DE2410646 A1 DE 2410646A1
Authority
DE
Germany
Prior art keywords
hot air
hot
baking
air
passages
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.)
Pending
Application number
DE2410646A
Other languages
German (de)
Inventor
Erwin Hunziker
Franz Luder
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.)
BONO APPARATE AG
Original Assignee
BONO APPARATE AG
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 BONO APPARATE AG filed Critical BONO APPARATE AG
Publication of DE2410646A1 publication Critical patent/DE2410646A1/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/32Arrangements of ducts for hot gases, e.g. in or around baking ovens
    • F24C15/322Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/14Spillage trays or grooves

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Baking, Grill, Roasting (AREA)

Abstract

The oven makes use of a hot air circulating system, esp. for even and thoroughly distributed cooking of large joints of meat and other foodstuffs, with a circulating ventilator driving the air through a heating grill and channelling part of the hot air upwards. The deflector metal plate is inserted to form a top guide duct, and this has holes passing through it for evenly spread hot air action on the dishes being cooked. The holes may be exclusively fitted lengthways in the central area, and pref. over the whole width of the plate. Even cooking of large or awkwardly shaped pieces is easily ensured.

Description

Heissluft-Umluft- Brat-, -Grill- und -backofen Die vorliegende Erfindung betrifft einen Heissluft-Umluft- Brat-, -Grill- und -Backofen mit einem UmluCt-Ventilator, welcher die Luft durch ein Heizgitter und einen Anteil der Heissluft kanalisiert nach oben treibt. Hot air convection roasting, grill and baking oven The present invention concerns a hot air, convection roasting, grill and baking oven with a convection fan, which channels the air through a heating grid and some of the hot air drifts upwards.

Es ist in derartigen Ofen oftmals schwierig, das zu backende, zu bratende oder zu grillierende Gut gleichmassig zu behandeln, insbesondere wenn es sich um ein grosses Stück handelt oder der Ofen bzw. das Ofenblech entsprechend angefüllt ist. Die vorliegende @rfindung löst dieses Problem dadurch, dass zur Bildung eines oberen Führungskanals ein Leitblech eingeschoben ist, welches mit Lurchtrittsöffnungen zwecks gleichmässigerer @eaufscnlagung des Brat- oder Backgutes durch Heissluft versehen ist.It is often difficult in such an oven to bake what is to be roasted or to treat items to be grilled evenly, especially when it comes to is a large piece or the oven or oven tray is filled accordingly is. The present @rfindung solves this problem by having a guide plate is inserted to form an upper guide channel, which with passage openings for the purpose of more even application of the roasted or baked goods is provided by hot air.

Dabei nat es stich als vorteilhaft erwiesen, im Sinne einer optimalen Behandlung des Gutes, die Oeffnungen ausschliesslich längs im Mittelbereich, vorzugsweise über die ganze Blechbreite anzuordnen.It naturally proved to be advantageous in the sense of an optimal Treatment of the goods, the openings exclusively lengthways in the central area, preferably to be arranged across the entire width of the sheet.

Ein Ausführungsbeispiel des Erfindungsgegenstandes wird anschliessend- anhand der Figuren erläutert.An embodiment of the subject matter of the invention is then explained with reference to the figures.

Es zeigen: Fig. 1 einen rein schematisch dargestellten Längsschnitt durch einen tIeissluft-Umluft- Brat-, -Grill- und -Backofen, Fig. 2 einen Ausschnitt aus dem vorderen Bereich des Backofens gemäss Fig. 1, Fig. 3 ein Luftführungsblech in Aufsicht.1 shows a purely schematically illustrated longitudinal section by a hot air circulating air roasting, grill and baking oven, Fig. 2 shows a section from the front area of the oven according to FIG. 1, FIG. 3, an air guide plate under supervision.

In Filz 1 ist ein Heissluft-Umluft- Brat-, -Grill- und -Backofen 1 im Längsschnitt rein scherilatisch dargestellt. Er weist ein Gehäuse 3 auf, mit einer Rückwand 5, in welcher buftzuströmöffnungen 6 vorgesehen sind. In dieser Rückwand 5 ist ferner ein Radialventilator 7 montiert mit einem aussen liegenden Antriebsmotor 8. Radial ausserhalb des Ventilators 7 befindet sich ein aus Ringheizkörpern bestehendesheizregister 10. Ein Luftführungsblech 12 mit Zuströmöffnungen 13 leitet die Luft in den Ansaugbereich des Radialventilators 7. Dieser Ofen ist mit drei Back- oder Grillblechen 15, 16 und 17 ausgerüstet. Nach vorn schliesst ihn eine Türe 19 mit einem Handgriff 20 ab. Rund um die Tür ist eine Runddichtung 22 angebracht, welche ein Austreten von Heissgasen verhütet.In felt 1 is a hot air, convection roasting, grill and baking oven 1 Shown purely scherilatically in longitudinal section. It has a housing 3 with a rear wall 5 in which air inflow openings 6 are provided. In this back wall 5, a radial fan 7 is also mounted with an external drive motor 8. Radially outside the fan 7 there is a heating register consisting of ring heaters 10. An air guide plate 12 with inflow openings 13 guides the air into the intake area of the centrifugal fan 7. This oven is equipped with three baking or grill trays 15, 16 and 17 equipped. A door 19 closes it to the front with a handle 20 away. A round seal 22 is attached around the door, which prevents leakage Prevents hot gases.

Unter der Tür befindet sich eine Scnublade 24, deren oberer Abschluss als Sanlmeltrog 25 ausgebildet. ist. Im unteren Teil ist zwischen der Türe 19 und dem Gehäuse 3 ein Entlüftungs-und Abflusskanal 27 vorgesehen, welcher aus dem Innern des Ofens nach aussen führt, wobei an dieser Stelle die Runddichtung 22 unterbrochen ist. Die durch diesen Kanal 27 nach aussen streichende Luft schlägt sich auf dem kalten Sammeltrog 25 als Kondensat 29 nieder und kann mühelos nach dem Oeffnen der Tür mittels eines Tuches entfernt werden.Under the door there is a drawer 24, the upper end of which designed as a Sanlmeltrog 25. is. In the lower part is between the door 19 and the housing 3 is provided with a ventilation and drainage channel 27, which from the inside of the furnace leads to the outside, the O-ring seal 22 being interrupted at this point is. The air flowing through this channel 27 to the outside beats itself on the cold collecting trough 25 as condensate 29 and can easily after opening the Door can be removed with a cloth.

Im obern Teil des Ofens 1 ist zur Bildung eines Heissluftführungskanals 35 ein Leitblech 31 eingeschoben, welches über seine Fläche verteilte Oeffnungen 33 aufweist. Diese Oeffnungen 33 können schlitzförmig, rund oder anders geformt sein und reihenweise, wie Fig. 3 zeigt, oder aufgrund von Versuchen einzeln derart angeordnet werden, dass das sich auf dem Blech 15 befindende, zu behandelnde Gut gleichmässig von Heissluft, im wesentlichengleicher Temperatur, beaufschlagt wird.In the upper part of the furnace 1 is to form a hot air duct 35 a guide plate 31 is inserted, which openings are distributed over its surface 33 has. These openings 33 can be slit-shaped, round or otherwise shaped and in rows, as shown in FIG. 3, or individually based on experiments be arranged that the material to be treated is located on the sheet metal 15 is evenly acted upon by hot air, essentially at the same temperature.

Um dies zu erreichen, ist die Umwälzzahl, welche insbesondere durch den Ventilator 7 bedingt ist, relativ hoch, damit bei einem Durchgang die Temperaturerhöhung und die Feuchtigkeitszunahme der Luft gewisse Werte nicht übersteigt.To achieve this, the circulation rate, which in particular by the fan 7 is due to, relatively high, so that the temperature increase in one pass and the increase in humidity of the air does not exceed certain values.

Die Oeffnungen 33 können längs im Mittelbereich des Bleches 31, vorzugsweise dann über die ganze Blechbreite angeordnet sein. Auf diese Weise ist es möglich, das zu behandelnde Gut sehr gleichmässig zu backen, zu grillieren oder zu braten, während beim Fehlen derartiger Oeffnungen 33 praktisch die gesamte Heissluft gegen die Tür 19 strömt und insbesondere über dem Blech 15 tote Bereiche entstehen, welche von der Heissluft nicht erreicht werden und in welchen das Gut wesentlich schlechter behandelt wird.The openings 33 can be longitudinally in the central region of the plate 31, preferably then be arranged over the entire width of the sheet. In this way it is possible to bake, grill or roast the item to be treated very evenly, while in the absence of such openings 33 practically all of the hot air against the door 19 flows and in particular 15 dead areas arise over the sheet metal, which cannot be reached by the hot air and in which the goods are much worse is treated.

Der erwähnte Entlüftungs- undAbflusskanal 27 ist deshalb von Bedeutung, weil durch die entsprechenden Zuströmöffnungen 6 in der Rückwand 5 immer etwas Frischluf't eingesaugt wird, so dass im Sinne der aontinuitätsgleichung auch immer eine gewisse Luftmenge, die mit Wasserdampf angereichert ist, durch den Entlüftungs- und Abflusskanal 27 wegströmt und sich erst im dafür vorgesehenen, von aussen gekühlten Sammeltrog 25 als kondensat ansammelt. Damit wird die Kondensation im eigentlichen Ofeninnern und damit dessen Verschmutzen weitgegend verhütet.The mentioned ventilation and drainage channel 27 is therefore important because through the corresponding inflow openings 6 in the rear wall 5 there is always some fresh air is sucked in, so that in the sense of the continuity equation there is always a certain Amount of air enriched with water vapor through the ventilation and drainage duct 27 flows away and only settles in the collecting trough provided for this purpose, cooled from the outside 25 accumulates as condensate. This creates condensation in the actual furnace interior and thus largely prevents its soiling.

Claims (2)

? a t e n t a n s p r ü c h e ? a t e n t a n s p r ü c h e # Heissluft-Umluft- Brat-, -Grill- und - Backofen mit einem Umluft-Ventilator, welcher die Luft durch ein Heizgitter und einen Anteil der Heissluft kanalisiert nach oben treibt, dadurcn gekennzeichnet, dass zur bildung eines oberen Führungskanals (35) ein Leitblech (31) eingeschoben ist, welches mit Durchtrittsöffnungen (33) zwecks gleichmässigerer @eaufschlagung des Brat- oder Backgutes durch Heissluft versehen ist.# Hot air convection roasting, grill and oven with a convection fan, which channels the air through a heating grid and some of the hot air drives upwards, marked by the fact that the formation of an upper guide channel (35) a guide plate (31) is inserted, which with passage openings (33) for the purpose of even loading the food to be roasted or baked with hot air is provided. 2. Heissluft-Umluft- Brat-, -Grill- und -backofen nach Anspruch 1, dadurch gekennzeichnet, dass die Oeffnungen (33) ausschliesslich längs im Mittelbereich, vorzugsweise über die ganze Blechbreite, angeordnet sind. 2. hot air convection roasting, grill and baking oven according to claim 1, characterized in that the openings (33) are exclusively longitudinal in the central area, are preferably arranged over the entire width of the sheet.
DE2410646A 1973-12-11 1974-03-06 Hot-air circulating roasting, baking and grilling oven - has deflector plate forming top air duct with passages Pending DE2410646A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1731073A CH571848A5 (en) 1973-12-11 1973-12-11

Publications (1)

Publication Number Publication Date
DE2410646A1 true DE2410646A1 (en) 1975-06-19

Family

ID=4424427

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2410646A Pending DE2410646A1 (en) 1973-12-11 1974-03-06 Hot-air circulating roasting, baking and grilling oven - has deflector plate forming top air duct with passages

Country Status (4)

Country Link
AT (1) AT354668B (en)
CH (1) CH571848A5 (en)
DE (1) DE2410646A1 (en)
SE (1) SE406691B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3621245A1 (en) * 1986-06-25 1988-01-14 Licentia Gmbh Electric baking and roasting oven
EP0401173A2 (en) * 1989-05-31 1990-12-05 Electrolux AG Baking, roasting and grill oven
FR2897419A1 (en) * 2006-02-13 2007-08-17 Bourgeois Prod Coop Convection oven for e.g. flash roasting food, has energy source, control unit and resistors regulating temperature of oven to specific degree Celsius during specific roasting operation stage, where resistors and turbine are placed in cavity

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE447193B (en) * 1985-04-10 1986-11-03 Revent Int Ab CONVECTION

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3621245A1 (en) * 1986-06-25 1988-01-14 Licentia Gmbh Electric baking and roasting oven
EP0401173A2 (en) * 1989-05-31 1990-12-05 Electrolux AG Baking, roasting and grill oven
EP0401173A3 (en) * 1989-05-31 1991-05-08 Electrolux AG Baking, roasting and grill oven
FR2897419A1 (en) * 2006-02-13 2007-08-17 Bourgeois Prod Coop Convection oven for e.g. flash roasting food, has energy source, control unit and resistors regulating temperature of oven to specific degree Celsius during specific roasting operation stage, where resistors and turbine are placed in cavity

Also Published As

Publication number Publication date
CH571848A5 (en) 1976-01-30
SE7415425L (en) 1975-06-12
SE406691B (en) 1979-02-26
ATA988874A (en) 1979-06-15
AT354668B (en) 1979-01-25

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