EP1657495A2 - Four, en particulier four à circulation d'air chaud - Google Patents

Four, en particulier four à circulation d'air chaud Download PDF

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Publication number
EP1657495A2
EP1657495A2 EP05020067A EP05020067A EP1657495A2 EP 1657495 A2 EP1657495 A2 EP 1657495A2 EP 05020067 A EP05020067 A EP 05020067A EP 05020067 A EP05020067 A EP 05020067A EP 1657495 A2 EP1657495 A2 EP 1657495A2
Authority
EP
European Patent Office
Prior art keywords
oven according
pin
wall
shaped holding
gar
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.)
Withdrawn
Application number
EP05020067A
Other languages
German (de)
English (en)
Inventor
Karl Dr. Leidig
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.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
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 Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Publication of EP1657495A2 publication Critical patent/EP1657495A2/fr
Withdrawn legal-status Critical Current

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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

Definitions

  • the invention relates to a cooking oven, in particular a hot air or convection oven, which has a wall having a muffle, wherein on the outside of the wall, an electric motor for driving a fan wheel is arranged, which is driven by a wall penetrating the shaft, and wherein the electric motor or at least parts of this on at least one vibration damping damping element is fixed directly or indirectly on the outside of the wall.
  • the material to be cooked is exposed to a hot air stream in a furnace muffle, wherein the air is moved by means of a blower.
  • the fan In a hot air oven, the fan is part of a hot air engine, in which the hot air is generated by heating elements. By means of the blower, the hot air is blown into the oven muffle.
  • the heat is generated by heating elements within the oven; By means of the fan, a circulating air flow is generated in the oven muffle.
  • a circulating air or hot air oven of the generic type with a blower mounted on a housing wall of the furnace provided for its inclusion by means of a vibrating element attached to the fan to a recess in the housing wall and means Buffer members made of elastic material is acoustically decoupled against the housing wall, wherein the buffer members between the vibrating element and the housing wall are arranged.
  • DE 38 23 447 C3 shows an electric motor operated fan, which is part of an air conditioner for the passenger compartment of a motor vehicle.
  • a low-vibration running of the blower is achieved in that a disc-shaped, elastic component between the engine and the carrier is provided.
  • the disk-shaped component has thin webs, which are formed for example helically, to provide a good vibration isolation.
  • the disadvantage is that the construction of the arrangement and in particular the manufacture of the disk-shaped components is relatively expensive, since they have a complex shape.
  • a small blower which serves to determine certain values of the air in the passenger compartment of a vehicle.
  • the small fan has an electronically commutated fan motor whose stator is arranged noise-decoupled on a housing-fixed, annular frame and suspended elastically by means of spring elements.
  • the stator is formed substantially plate-shaped and is located in the plane of the support frame.
  • the elastic suspension is preferably created by spring elements in the form of coil springs.
  • the invention is therefore an object of the invention to provide a cooking oven of the type mentioned above, which is characterized by a good vibration isolation of the fan of the oven muffle and allows a particularly economical production.
  • the solution of this object by the invention is characterized in that on the outside of the wall at least one away from the wall extending, pin-shaped retaining element is arranged, which is surrounded at least in part of its extension of the damping element, wherein the electric motor or at least parts from this indirectly or directly the damping element is set encompassing this.
  • the at least one pin-shaped holding element extends perpendicularly away from the wall. It may also have a circular cross-section.
  • a high stability of the arrangement of the electric motor to the oven muffle is favored by the fact that two pin-shaped holding elements are provided.
  • the axes of the two pin-shaped holding elements and the axis of the shaft lie with advantage in one plane. Furthermore, the two pin-shaped holding elements can have the same distance from the shaft.
  • the electric motor is preferably fixed to a carrier element, in particular to a carrier plate, wherein the carrier element is fixed to the at least one damping element in a surrounding manner.
  • the carrier element preferably consists of a largely flat sheet metal part. Furthermore, it can be provided that the carrier element has at least one bore for the passage and / or for receiving the damping element and / or the pin-shaped retaining element.
  • the carrier element in the region of the bore has a hollow cylindrical holding portion for receiving the damping element.
  • the hollow cylindrical holding section may be formed from the material of the carrier element, in particular by a deep-drawing process.
  • An alternative embodiment provides that the hollow cylindrical holding portion is attached to the carrier element in a material-locking manner, in particular welded or soldered.
  • the damping element is designed as a hollow cylindrical body which is pushed onto the pin-shaped retaining element.
  • the at least one pin-shaped retaining element may be made of metal, in particular of steel, of ceramic material or of heat-resistant plastic.
  • the damping element may preferably consist of rubber material or of silicone.
  • a cover plate covering the fan wheel can be arranged, which has such an extent that it covers the area of the pin-shaped holding elements. As a result, the visual appearance of the muffle interior is improved.
  • the proposed embodiment of a hot air or forced air oven ensures that a high degree of vibration is achieved, so that natural frequencies of the system are damped. This results in a very quiet running in fan mode.
  • the design is feasible in a particularly cost-effective manner, since only very simple structure and few components are needed.
  • a cooking oven 1 can be seen, which is designed as a convection or hot air oven.
  • the oven opening is provided, spent on the Good to be cooked in the oven muffle 3 and removed again after cooking.
  • the oven muffle 3 has a wall 2, which in the present case is the back wall of the oven muffle.
  • a fan system is arranged in the region of the rear wall 2 of the oven muffle 3. It is a fan 6, which is driven by a shaft 7 of an electric motor 5.
  • the fan 6 is covered in the interior of the oven muffle 3 by a cover plate 13, so that it is protected from dirt. Not shown recesses in the cover plate 13 allow a release movement. In this case, the cover plate 13 extends so far that any existing screws for mounting the pin-shaped retaining elements 9 described below are covered.
  • the electric motor 5 is attached to the outside 4 of the wall 2 by means of a vibration-decoupling arrangement.
  • the electric motor 5 on a support member 10 in the form of a substantially planar Fixed sheet metal, ie screwed in this case.
  • the carrier element 10 in turn is connected to the wall 2 by means of two pin-shaped holding elements 9.
  • the pin-shaped retaining elements 9 are rods with a circular cross section, which are soldered to the outside 4 of the wall 2 (see soldering joints 14 in FIG. Both pin-shaped holding elements 9 extend parallel to the shaft 7 perpendicularly away from the wall 2.
  • bores 11 are introduced, through which project the pin-shaped holding elements 9.
  • the located behind the holes 11 part of the pin-shaped holding elements 9 is surrounded by a vibration damping damping element 8, which has a hollow cylindrical shape.
  • 10 holding portions 12 are arranged in the form of a metallic sleeve on one side of the support member; In the present case, the holding sections 12 are soldered to the carrier element 10 (see soldering point 15 in FIG.
  • the radial dimensions, d. H. the inner diameter and the outer diameter of the hollow cylindrical Dämpfelements 8 are chosen so that the damping element 8 is seated both on the pin-shaped holding member 9 and in the holding portion 12 with bias.
  • the electric motor 5 Since the determination of the electric motor 5 via the carrier element 10 and the pin-shaped holding elements 9 on the wall 2 via the vibration damping damping elements 8 made of elastomer or silicone material, the electric motor 5 is decoupled from the wall 2 vibrationally, ie structure-borne noise can only very bad from the engine 5 are transferred to the wall 2. The system works very quietly.
  • the entire unit consisting of electric motor 5 and carrier element 10, is vibrationally decoupled from the oven muffle 3. Ie. the excitation of vibrations according to the natural frequencies and eigenmodes of the cooking oven 1 is decisively suppressed. Conversely, vibrations from the cooking oven 1 or from the oven muffle 3 can not be transmitted to the carrier element 10 together with the motor 5, so that natural frequencies and eigenmodes of this subsystem are not excited either.
  • the thermal expansion of the system, consisting of fan 6, shaft 7 and electric motor 5, in the axial direction of the shaft 7 is not hindered by the proposed embodiment. However, it is excluded by the choice of two pin-shaped holding elements 9 on both sides of the shaft 7 that results in a translational movement of the support member 10 in the plane perpendicular to the axis of the shaft 7. Similarly, a rotation of the support member 10 in the axial direction of the shaft 7 is excluded. This ensures a high mechanical strength of the motor 5 together with the carrier element 10.
  • the rigidity in the direction of the axis of the shaft 7 between the wall 2 of the oven muffle 3 and the support member 10 may optionally be increased by placing spring elements between the outside 4 of the wall 2 and the support member 10, for. B. rubber blocks.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Ovens (AREA)
EP05020067A 2004-11-10 2005-09-15 Four, en particulier four à circulation d'air chaud Withdrawn EP1657495A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410054315 DE102004054315A1 (de) 2004-11-10 2004-11-10 Garofen, insbesondere Heißluft- oder Umluftofen

Publications (1)

Publication Number Publication Date
EP1657495A2 true EP1657495A2 (fr) 2006-05-17

Family

ID=35735206

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05020067A Withdrawn EP1657495A2 (fr) 2004-11-10 2005-09-15 Four, en particulier four à circulation d'air chaud

Country Status (2)

Country Link
EP (1) EP1657495A2 (fr)
DE (1) DE102004054315A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009083358A2 (fr) * 2007-12-28 2009-07-09 Arcelik Anonim Sirketi Four
WO2009083361A2 (fr) * 2007-12-28 2009-07-09 Arcelik Anonim Sirketi Un four
WO2015074832A1 (fr) * 2013-11-22 2015-05-28 Arcelik Anonim Sirketi Four

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8906272U1 (fr) 1989-05-20 1989-07-06 Miele & Cie Gmbh & Co, 4830 Guetersloh, De
DE4130519A1 (de) 1991-09-13 1993-03-18 Bosch Gmbh Robert Kleingeblaese mit einem elektronisch kommutierten geblaesemotor
DE3823447C3 (de) 1988-07-11 1999-10-21 Bosch Gmbh Robert Elektromotorisch betriebenes Gebläse
DE10054955A1 (de) 2000-11-06 2002-05-16 Aeg Hausgeraete Gmbh Ofen mit Schwingelement für Gebläsebefestigung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5927136A (ja) * 1982-08-05 1984-02-13 Matsushita Electric Ind Co Ltd 加熱調理器
CN1124443C (zh) * 1998-05-13 2003-10-15 三星电子株式会社 具有用于固定风扇的改进结构的微波炉

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3823447C3 (de) 1988-07-11 1999-10-21 Bosch Gmbh Robert Elektromotorisch betriebenes Gebläse
DE8906272U1 (fr) 1989-05-20 1989-07-06 Miele & Cie Gmbh & Co, 4830 Guetersloh, De
DE4130519A1 (de) 1991-09-13 1993-03-18 Bosch Gmbh Robert Kleingeblaese mit einem elektronisch kommutierten geblaesemotor
DE10054955A1 (de) 2000-11-06 2002-05-16 Aeg Hausgeraete Gmbh Ofen mit Schwingelement für Gebläsebefestigung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009083358A2 (fr) * 2007-12-28 2009-07-09 Arcelik Anonim Sirketi Four
WO2009083361A2 (fr) * 2007-12-28 2009-07-09 Arcelik Anonim Sirketi Un four
WO2009083361A3 (fr) * 2007-12-28 2010-04-15 Arcelik Anonim Sirketi Un four
WO2009083358A3 (fr) * 2007-12-28 2010-04-22 Arcelik Anonim Sirketi Four
US8667957B2 (en) 2007-12-28 2014-03-11 Davut Ayhan Serabatir Oven
WO2015074832A1 (fr) * 2013-11-22 2015-05-28 Arcelik Anonim Sirketi Four

Also Published As

Publication number Publication date
DE102004054315A1 (de) 2006-05-11

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