EP3194854A1 - Haushaltsofen - Google Patents

Haushaltsofen

Info

Publication number: EP3194854A1
Authority: EP; European Patent Office
Prior art keywords: oven; radial fan; resistance wire; fan; radial
Prior art date: 2014-07-31
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

EP15760277.2A

Other languages

English (en)

French (fr)

Other versions

EP3194854B1 (de

Inventor

Federico ZOPPAS

Angelo Irrera

Roberto MERZ

Stefano Zanella

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.)

IRCA SpA Industria Resistenze Corazzate e Affini

Original Assignee

IRCA SpA Industria Resistenze Corazzate e Affini

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.)

2014-07-31

Filing date

2015-07-31

Publication date

2017-07-26

2015-07-31 Application filed by IRCA SpA Industria Resistenze Corazzate e Affini filed Critical IRCA SpA Industria Resistenze Corazzate e Affini

2017-07-26 Publication of EP3194854A1 publication Critical patent/EP3194854A1/de

2018-10-24 Application granted granted Critical

2018-10-24 Publication of EP3194854B1 publication Critical patent/EP3194854B1/de

Status Active legal-status Critical Current

2035-07-31 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
- 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)

EP15760277.2A 2014-07-31 2015-07-31 Haushaltsofen Active EP3194854B1 (de)

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 (de)	2017-07-26
EP3194854B1 EP3194854B1 (de)	2018-10-24

Family

ID=51799241

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP15760277.2A Active EP3194854B1 (de)	2014-07-31	2015-07-31	Haushaltsofen

Country Status (2)

Country	Link
EP (1)	EP3194854B1 (de)
WO (1)	WO2016016860A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP3680561A1 (de) *	2019-01-14	2020-07-15	Koninklijke Philips N.V.	Wasserführungsvorrichtung und dampferzeuger umfassend eine solche vorrichtung
WO2021246975A1 (en) *	2020-06-02	2021-12-09	Femas Metal San. Ve Tic. A.S.	Oven with steam assembly
DE102020132482A1 (de) *	2020-12-07	2022-06-09	Welbilt Deutschland GmbH	Gargerät, insbesondere gewerbliches Gargerät

Family Cites Families (13)

* Cited by examiner, † Cited by third party
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 (fr) *	1987-05-06	1990-03-09	Seb Sa	Four electrique pour la cuisson des aliments comprenant un generateur de vapeur
DE3941322A1 (de) *	1989-12-14	1991-06-20	Bosch Siemens Hausgeraete	Dampfgarvorrichtung an einer backofenmuffel
US5485780A (en) *	1993-02-26	1996-01-23	Food Automation Service Techniques, Inc.	Rotisserie oven
DE19812465C5 (de) *	1998-03-23	2011-06-01	Miwe Michael Wenz Gmbh	Backofen mit Dampferzeuger
US20040089648A1 (en) *	2002-07-29	2004-05-13	Griffey Dean J.	Open coil heater element convection system for convection ovens and the like
KR101041071B1 (ko) *	2003-12-30	2011-06-13	삼성전자주식회사	가열조리장치
KR20060006472A (ko) *	2004-07-16	2006-01-19	삼성전자주식회사	가열조리장치
KR101323325B1 (ko) *	2006-11-15	2013-10-29	엘지전자 주식회사	조리기기
DE102012200704A1 (de) *	2012-01-19	2013-07-25	E.G.O. Elektro-Gerätebau GmbH	Garvorrichtung und Verfahren zum Betrieb einer Garvorrichtung
EP2636955B1 (de) *	2012-03-08	2016-11-16	Electrolux Home Products Corporation N.V.	Kochherd für Wärmeübertragung durch Konvektion

2015
- 2015-07-31 EP EP15760277.2A patent/EP3194854B1/de active Active
- 2015-07-31 WO PCT/IB2015/055816 patent/WO2016016860A1/en not_active Ceased

Also Published As

Publication number	Publication date
WO2016016860A1 (en)	2016-02-04
EP3194854B1 (de)	2018-10-24

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