EP3194854A1 - Domestic oven - Google Patents
Domestic ovenInfo
- Publication number
- EP3194854A1 EP3194854A1 EP15760277.2A EP15760277A EP3194854A1 EP 3194854 A1 EP3194854 A1 EP 3194854A1 EP 15760277 A EP15760277 A EP 15760277A EP 3194854 A1 EP3194854 A1 EP 3194854A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oven
- radial fan
- resistance wire
- fan
- radial
- 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
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
- F24C15/325—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation electrically-heated
-
- 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
-
- 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
- F24C15/327—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation with air moisturising
Definitions
- this configuration may generate an asymmetric air flow which leads to an imbalanced heat distribution at the walls of the oven compartment.
- said support structure is a closed housing, in which the radial fan and the at least one resistance wire are assembled, said closed housing being fixed to the upper wall of the inner compartment.
- the radial fan is positioned only on the roof of the cavity or inner compartment of the oven in the oven of the invention.
- Forced ventilation occurs because the air flows let out from the radial fan are directed onto the resistance wires, are heated and run along the roof and then downwards along the side walls of the compartment to reach the position of the tray or vessel containing the food. From the center of the tray, a resulting flow of air will go upwards again towards the center of the radial fan and the cycle will be repeated.
- the fan, the electric resistor and the support/protective lid of the resistor are mutually preassembled and form an integrated system, i.e. defining a single assembled component, which can be subsequently fitted in the oven cavity more simply and cost-effectively than in the prior art. Furthermore, there are advantages in terms of robustness and compactness by providing a preassembled component.
- Fig. 6 is the same view as in Fig. 5, with one component less for better visibility of the other components;
- Fig. 8 is a view of a third embodiment of the oven according to the invention.
- Fig. 9 is a perspective view of a support structure according to the invention, which can be used in all embodiments.
- Each resistance wire 3, which can be single or more than one, consists of either a single winding or two or more windings appropriately connected to one another.
- a support structure 4 is provided, which defines a closed housing, in which the radial fan 1 and the at least one resistance wire 3 are housed.
- the support structure 4 comprises a base 16, or a flat surface, and a protective lid 17.
- the base 16 is fixed to the upper wall 2, for example by means of screws.
- the protective lid 17 can be defined, for example, by a spherical zone, i.e. by a part of a spherical surface comprised between two parallel planes which cut the sphere or by a spherical cap surface.
- Such a protective lid 17 is provided with at least one series of first slots 14 arranged along a circumference. Near the radial fan 1 , preferably on the bottom of the lid, distal from the base 16, three series of second slots 15 are provided, wherein each series is arranged along a respective circumference. Such circumferences are preferably concentric and have a different radius from one another. A further air inlet slot 18 can be positioned at a central portion of the bottom of the lid, coaxial to the center of such circumferences. The number of the series of first and/or second slots can be varied.
- the support structure 4, radial fan 1 and at least one resistance wire 3 are preassembled so as to form a single component to be installed in the oven.
- a pipe 8 connected to a reservoir 10 outside the support structure 4 is provided inside the oven compartment, preferably but not necessarily on the support structure 4.
- Such a pipe is provided with a plurality of holes 9 facing towards the upper wall 2 for releasing steam.
- the pipe 8 is fed with water coming from the reservoir 10, by using a pump 21 , producing steam which exits from the holes 9.
- the support structure 4 comprises a cavity facing towards the upper wall 2 of the compartment, having a circular bottom 5 for housing the radial fan 1 and a flared edge 6 onto which the single resistance wire 3 or the two or more resistance wires 3 are fixed by means of appropriate ceramic supports.
- the pipe 8, arranged between a resistance wire 3 and the radial fan 1 can be provided in a connection zone between the circular bottom 5 and the flared edge 6.
- the radial fan 1 is positioned so as to expel air flows, which at least partially brush the pipe 8 and the one or more resistance wires 3, and preferably also the tubular electric resistor 7, so as to heat and optimally distribute the air of the inner compartment of the oven and optimize the dispersion of steam released from the holes 9.
- the outlet sections of the bladed impeller of the radial fan 1 are arranged at a height or position corresponding at least partially to the height or position of the pipe 8, of the one or more resistance wires 3 and of the tubular electric resistor 7.
- a support structure may be provided as described for the first embodiment, comprising the base and the lid and the series of first and second slots.
- a further either radial or axial fan 12 is provided, configured to aspirate cool air from the outside of the oven and to expel air flows for cooling the electronics of the oven and of the door 22 of said oven.
- the further fan 12 is a radial fan arranged along the axis X itself and a single motor 13 is provided to actuate both the radial fan 1 , which operates on the hot air of the oven and the radial cooling fan 12.
- a radial fan 1 ' defining and revolving about an axis Y (perpendicular to the sheet in Fig. 8), exclusively arranged on a rear wall 20 of the inner compartment, opposite to the oven door, the axis Y being substantially perpendicular to said rear wall 20,
- the resistance wire 3 which can be one or more than one, consists of either a single winding or two or more windings appropriately connected together.
- the pipe 8 substantially circular in shape, is arranged between the at least one resistance wire 3 and the radial fan 1 ', coaxially to said radial fan 1 '.
- the pipe 8 is arranged adjacently between the single resistance wire 3 or one of the resistance wires 3 and a tubular electric resistor 7, of substantially circular shape and coaxial to the radial fan 1 '.
- the resistor 7 transmits heat to the pipe 8 by conduction, the pipe 8 and the resistor 7 being mechanically and thermally connected.
- the support structure 4 comprises a cavity facing towards the rear wall 20 of the compartment, having a circular bottom 5 for housing the radial fan 1 ' and a flared edge 6 onto which the single resistance wire 3 or the two or more resistance wires 3 are fixed by means of appropriate ceramic supports.
- the pipe 8, arranged between the one or more resistance wires 3 and the radial fan 1 ', can be provided in a connection zone between the circular bottom 5 and the flared edge 6.
- the radial fan 1 ' is positioned so as to expel air flows, which at least partially brush the pipe 8 and the one or more resistance wires 3, and preferably also the tubular electric resistor 7, so as to heat and distribute in optimal manner the air of the inner compartment of the oven and optimize the dispersion of steam released from the holes 9.
- the outlet sections of the bladed impeller of the radial fan 1 ' are arranged at least partially facing the pipe 8, the one or more resistance wires 3 and the tubular electric resistor 7.
- a cooling cavity 1 1 arranged over the upper wall 2 of the inner compartment of the oven, is provided also in this third embodiment.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electric Stoves And Ranges (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITRM20140430 | 2014-07-31 | ||
| PCT/IB2015/055816 WO2016016860A1 (en) | 2014-07-31 | 2015-07-31 | Domestic oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3194854A1 true EP3194854A1 (en) | 2017-07-26 |
| EP3194854B1 EP3194854B1 (en) | 2018-10-24 |
Family
ID=51799241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15760277.2A Active EP3194854B1 (en) | 2014-07-31 | 2015-07-31 | Domestic oven |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP3194854B1 (en) |
| WO (1) | WO2016016860A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4158254A4 (en) * | 2020-06-02 | 2024-01-10 | Femas Metal San. Ve Tic. A.S. | Oven with steam assembly |
| DE102020132482A1 (en) * | 2020-12-07 | 2022-06-09 | Welbilt Deutschland GmbH | Cooking device, in particular commercial cooking device |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3379189A (en) * | 1966-08-08 | 1968-04-23 | Gen Electric | Forced convection oven |
| US3529582A (en) * | 1968-12-09 | 1970-09-22 | Gen Electric | Self-cleaning forced convection oven |
| US3828760A (en) * | 1973-05-23 | 1974-08-13 | Lca Corp | Oven |
| FR2614976B1 (en) * | 1987-05-06 | 1990-03-09 | Seb Sa | ELECTRIC OVEN FOR COOKING FOODS COMPRISING A STEAM GENERATOR |
| DE3941322A1 (en) * | 1989-12-14 | 1991-06-20 | Bosch Siemens Hausgeraete | STEAM COOKER ON AN OVEN MUFFLE |
| US5485780A (en) * | 1993-02-26 | 1996-01-23 | Food Automation Service Techniques, Inc. | Rotisserie oven |
| DE19812465C5 (en) * | 1998-03-23 | 2011-06-01 | Miwe Michael Wenz Gmbh | Oven with steam generator |
| US20040089648A1 (en) * | 2002-07-29 | 2004-05-13 | Griffey Dean J. | Open coil heater element convection system for convection ovens and the like |
| KR101041071B1 (en) * | 2003-12-30 | 2011-06-13 | 삼성전자주식회사 | Heating cooker |
| KR20060006472A (en) * | 2004-07-16 | 2006-01-19 | 삼성전자주식회사 | Heating cooker |
| KR101323325B1 (en) * | 2006-11-15 | 2013-10-29 | 엘지전자 주식회사 | Cooking Device |
| DE102012200704A1 (en) * | 2012-01-19 | 2013-07-25 | E.G.O. Elektro-Gerätebau GmbH | Cooking device and method for operating a cooking device |
| EP2636955B1 (en) * | 2012-03-08 | 2016-11-16 | Electrolux Home Products Corporation N.V. | A cooking oven provided for heat transfer by convection |
-
2015
- 2015-07-31 WO PCT/IB2015/055816 patent/WO2016016860A1/en not_active Ceased
- 2015-07-31 EP EP15760277.2A patent/EP3194854B1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP3194854B1 (en) | 2018-10-24 |
| WO2016016860A1 (en) | 2016-02-04 |
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