EP3159612A1 - Four domestique ventilé - Google Patents

Four domestique ventilé Download PDF

Info

Publication number
EP3159612A1
EP3159612A1 EP16195160.3A EP16195160A EP3159612A1 EP 3159612 A1 EP3159612 A1 EP 3159612A1 EP 16195160 A EP16195160 A EP 16195160A EP 3159612 A1 EP3159612 A1 EP 3159612A1
Authority
EP
European Patent Office
Prior art keywords
muffle
fan
oven according
designed
oven
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
EP16195160.3A
Other languages
German (de)
English (en)
Other versions
EP3159612B1 (fr
Inventor
Daniele Cantoni
Carlo Zambruni
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.)
Smeg SpA
Original Assignee
Smeg SpA
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 Smeg SpA filed Critical Smeg SpA
Priority to PL16195160T priority Critical patent/PL3159612T3/pl
Priority to SI201630197T priority patent/SI3159612T1/sl
Publication of EP3159612A1 publication Critical patent/EP3159612A1/fr
Application granted granted Critical
Publication of EP3159612B1 publication Critical patent/EP3159612B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F24C15/32—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

Definitions

  • the present invention relates to a domestic ventilated oven.
  • a domestic ventilated oven comprises a muffle housing a cooking compartment in which hot air circulates thanks to a fan for levelling the temperature inside the muffle and, consequently, improving the cooking of food.
  • An object of the present invention is to provide a domestic ventilated oven able to ensure a greater uniformity of temperature and extremely versatile.
  • a domestic ventilated oven for cooking food comprising:
  • the oven is more versatile and able to ensure a good cooking of the food under different operating conditions.
  • each fan comprises an impeller arranged in the housing space and a variable speed electric motor.
  • the impeller is arranged in the housing space, while the electric motor is arranged out of the muffle and has a variable speed to control the convective motions of the hot air in the muffle.
  • control device comprises a manual control for selectively varying the fan rotation speed.
  • the operating parameters of the oven can be manually controlled based on the experience.
  • control device is designed to vary the fan rotation speed based on at least one operating parameter of the oven including the mass in the oven and the temperature of the oven.
  • the mass has a considerable influence on the convective motions in the muffle, because it takes up space and deflects the air flows.
  • the temperature in the muffle has an important role because the higher the temperature, the less the uniformity of the temperature.
  • control device is designed to reverse the rotation of the fan.
  • the inversion of the rotation of the fan allows inverting the convective motions and increasing the turbulence.
  • control device is designed for cyclically reversing the rotation of the fan at given times. In this way, the turbulence is further increased.
  • control device is designed to vary the fan rotation speed during cooking.
  • This automatic cooking mode can be useful when it is necessary to pass from a ventilated cooking mode to a cooking mode in the absence of ventilation, or vice versa.
  • the ventilated oven is designed to house a plurality of fans; in particular, the muffle has pre-weakened portions that can be easily removed to allow the mounting of respective fans. This allows providing different configurations of the same oven.
  • the oven comprises at least two fans arranged side by side in said housing space. More fans ensure greater uniformity and can be synchronously or asynchronously controlled. An increase in the number of fans increases the versatility of the oven.
  • Figure 1 indicates with the reference number 1 a domestic ventilated oven for cooking food.
  • the oven 1 comprises a muffle 2, which defines a cooking compartment 3 and comprises a bottom wall 4, an upper wall 5, a rear wall 6, a front wall 7 opposite the rear wall 6 and two mutually opposite side walls 8.
  • the front wall 7 is defined by a door 9 hinged to a side wall of the muffle 2.
  • the side walls 8 are provided with guides 10 designed to support some shelves, not shown in the attached figures.
  • the oven 1 comprises heating elements 11 associated with the muffle 2 to heat the air in the muffle 2, i.e. in the cooking compartment 3.
  • the heating elements 11 comprise an electrical resistor arranged close to the bottom wall 4 and an electric resistance arranged at the upper wall 5.
  • the oven 1 comprises two fans 12 arranged in the muffle 2 for circulating air in the muffle 2 and a partition 13, which is arranged in the muffle 2 to define a housing space 14, which is comprised between the rear wall 6 and the partition 13 and has a plurality of openings 15 connecting the housing space 14 and the cooking compartment 3.
  • the fans 12 are arranged side by side and, at least partially, in the housing space 14.
  • the cooking compartment 3 and the housing space 14 are connected through the openings 15 and a gap 16, which extends between the edge of the partition 13 and the muffle 3.
  • the partition 13 is smaller than the rear wall 6 and the cross section of the muffle 2 parallel to the rear wall 6.
  • the oven 1 has a deflector 17 arranged in the housing space 14 to separate the air flows generated by the fans 12.
  • the muffle 2 is insulated with insulating material 18 arranged around the muffle 2 to prevent any heat dispersion toward the outside.
  • the oven 1 is designed to house up to three fans 12.
  • the muffle 2 is designed to house three evenly aligned fans 12 and has pre-weakened portions 19 that can be easily removed.
  • Figure 2 shows an enlargement of the rear wall 6 of the muffle 2 in which a pre-weakened portion 19 is formed.
  • Each fan 12 is a fan able to operate both as a centrifugal fan, i.e. with central suction and radial delivery to create convective motions in the muffle 2 such as those indicated by the arrows in the Figures 3-5 , and as a centripetal fan, to create convective motions opposed to those shown in Figures 3 to 5 .
  • each fan 12 comprises an impeller 20 and a reversible, variable speed electric motor 21.
  • the impeller 20 is predominantly centrifugal, but with the possibility of conveying air in a centripetal direction when it is rotated in the opposite direction.
  • the oven 1 comprises a single fan 12 and a control device 22, which has the function of controlling only the fan 12, or rather the rotation speed of the fan 12.
  • the control device 22 comprises a control unit 23 and a manual control 24 to freely set the rotation speed of the fan 12.
  • the control device 22 provides, beside the manual adjustment mode, also the automatic adjustment of the rotation speed of the fan 12.
  • the control device 22 is designed to vary the rotation speed of the fan 12 based on at least one operating parameter of the oven comprising the mass in the muffle 2 and the temperature T of the oven 1.
  • a temperature sensor 25 acquires the temperature T and transmits a signal correlated to the temperature T to the control unit 23, which sets the fan rotation speed 12 by means of an algorithm based on the temperature signal T.
  • the control unit 23 provides the adjustment of the rotation speed of the fan 12 based on the mass in the muffle 2 or the type of food in the muffle 2. This information is provided to the control unit 23 through an interface 26. Based on the information acquired by the interface 26, the control unit 23 can set the rotation speed of the fan 12 by selecting one among a plurality of possible options:
  • each fan 12 can be independently set or all fans 12 can be synchronously set.
  • the oven 1 is provided with three fans 12, horizontally aligned to level the temperature inside the cooking compartment 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Baking, Grill, Roasting (AREA)
  • Electric Ovens (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Earth Drilling (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
EP16195160.3A 2015-10-21 2016-10-21 Four domestique ventilé Active EP3159612B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL16195160T PL3159612T3 (pl) 2015-10-21 2016-10-21 Wentylowany piekarnik domowy
SI201630197T SI3159612T1 (sl) 2015-10-21 2016-10-21 Domača ventilacijska pečica

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITUB2015A005306A ITUB20155306A1 (it) 2015-10-21 2015-10-21 Forno domestico ventilato

Publications (2)

Publication Number Publication Date
EP3159612A1 true EP3159612A1 (fr) 2017-04-26
EP3159612B1 EP3159612B1 (fr) 2019-01-23

Family

ID=55315655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16195160.3A Active EP3159612B1 (fr) 2015-10-21 2016-10-21 Four domestique ventilé

Country Status (6)

Country Link
EP (1) EP3159612B1 (fr)
ES (1) ES2709684T3 (fr)
IT (1) ITUB20155306A1 (fr)
PL (1) PL3159612T3 (fr)
SI (1) SI3159612T1 (fr)
TR (1) TR201904935T4 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000908A1 (fr) * 1977-08-31 1979-03-07 Küppersbusch Aktiengesellschaft Appareil pour la cuisson d'aliments
DE4319956A1 (de) * 1992-06-18 1993-12-23 Joetul As Vorrichtung für einen Ofen
US20030000515A1 (en) * 2001-06-27 2003-01-02 Cole James T. Convection oven having multiple airflow patterns
US20040040950A1 (en) * 2002-08-30 2004-03-04 Philip Carbone Convection oven with forced airflow circulation zones
US20040200362A1 (en) * 2003-04-09 2004-10-14 Peter Leppich Baking oven and method of operating a baking oven
EP1965137A1 (fr) * 2007-03-01 2008-09-03 CANDY S.p.A. Procédé pour le traitement d'aliments dans un four de cuisson et four de cuisson
WO2009097340A2 (fr) * 2008-01-28 2009-08-06 Duke Manufacturing Co. Four à convexion

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000908A1 (fr) * 1977-08-31 1979-03-07 Küppersbusch Aktiengesellschaft Appareil pour la cuisson d'aliments
DE4319956A1 (de) * 1992-06-18 1993-12-23 Joetul As Vorrichtung für einen Ofen
US20030000515A1 (en) * 2001-06-27 2003-01-02 Cole James T. Convection oven having multiple airflow patterns
US20040040950A1 (en) * 2002-08-30 2004-03-04 Philip Carbone Convection oven with forced airflow circulation zones
US20040200362A1 (en) * 2003-04-09 2004-10-14 Peter Leppich Baking oven and method of operating a baking oven
EP1965137A1 (fr) * 2007-03-01 2008-09-03 CANDY S.p.A. Procédé pour le traitement d'aliments dans un four de cuisson et four de cuisson
WO2009097340A2 (fr) * 2008-01-28 2009-08-06 Duke Manufacturing Co. Four à convexion

Also Published As

Publication number Publication date
ES2709684T3 (es) 2019-04-17
EP3159612B1 (fr) 2019-01-23
ITUB20155306A1 (it) 2017-04-21
PL3159612T3 (pl) 2019-07-31
TR201904935T4 (tr) 2019-05-21
SI3159612T1 (sl) 2019-04-30

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