EP2610557A1 - Four de cuisson avec chauffage de la sole et de l'air chaud - Google Patents

Four de cuisson avec chauffage de la sole et de l'air chaud Download PDF

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Publication number
EP2610557A1
EP2610557A1 EP12008153.4A EP12008153A EP2610557A1 EP 2610557 A1 EP2610557 A1 EP 2610557A1 EP 12008153 A EP12008153 A EP 12008153A EP 2610557 A1 EP2610557 A1 EP 2610557A1
Authority
EP
European Patent Office
Prior art keywords
muffle
hot air
air
oven according
baking 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.)
Withdrawn
Application number
EP12008153.4A
Other languages
German (de)
English (en)
Inventor
Tomislav Tomljenovic
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.)
V-Zug AG
Original Assignee
V-Zug 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 V-Zug AG filed Critical V-Zug AG
Publication of EP2610557A1 publication Critical patent/EP2610557A1/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Withdrawn legal-status Critical Current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
    • 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
    • F24C15/32—Arrangements of ducts for hot gases, e.g. in or around baking ovens

Definitions

  • the invention relates to an oven with a muffle and a bottom heat, wherein the bottom heat is adapted to heat the muffle from below. Further, the oven is designed as a hot-air oven and has an air conveyor for generating a flow of hot air.
  • Hot air ovens of this type are known. You need a chamber behind the muffle in which the hot air flow is generated by means of a heater and a radial fan. However, this construction is relatively expensive.
  • the oven thus has a channel below the muffle, in which the hot air can be heated in thermal contact with the bottom heat.
  • the air conveyor is designed so that it can convey the hot air through this channel. In this way, the bottom heat can thus be used to heat the hot air and a separate heating in a chamber behind the muffle is eliminated.
  • the inventive construction has the further advantage that a linear air flow can be generated under the muffle, with which the heat can be efficiently transferred to the air flow.
  • rear ventilation openings are provided on the rear wall of the muffle, via which the channel is connected below the muffle with the muffle.
  • the term "rear wall” refers to the user door opposite wall of the muffle. The hot air can be blown into the muffle from the duct via the rear ventilation opening (s) or, vice versa, from the muffle via the rear ventilation opening (s) to the duct.
  • At least one lateral ventilation opening can be provided on a side wall (or also on both side walls) via which the channel is connected to the muffle.
  • the term "sidewall” refers to a perpendicular to the closed user door standing, vertical wall of the muffle. In this case, the hot air from the duct can be blown into the muffle via the lateral ventilation opening (s) or, vice versa, conveyed from the muffle via the lateral ventilation opening (s) to the duct.
  • the air conveyor can be designed to convey the hot air from a first lateral ventilation opening to the second lateral ventilation opening.
  • the first and the second lateral ventilation opening are advantageously arranged on mutually opposite side walls, so that a horizontal air flow is formed transversely to an axis perpendicular to the shot user door axis.
  • the air conveyor can be designed such that it conveys the hot air between the rear ventilation opening and the lateral ventilation opening.
  • At least one cross-flow fan is provided, since this is able to generate a wide air flow.
  • the air conveyor may also include at least one axial fan. Its conveying axis is preferably at an angle to the horizontal (i.e., at an angle greater than 0 ° and less than 90 °, in particular between 15 ° and 75 °). By this inclination, the height can be reduced.
  • front refers to the direction to the user door
  • rear refers to the direction away from the user door
  • Fig. 1 shows a vertical section through an oven with a muffle 1, which encloses an interior 2 for receiving the food.
  • a muffle 1 On the front side the muffle is a user door 3 of known type arranged.
  • a bottom heat 4 is provided at the bottom of the muffle 1, usually on the outside of the bottom 5 of the muffle. This is in thermal contact with the bottom 5 to heat them in a known manner in their function as bottom heat.
  • the lower heat 4 in a known manner, e.g. be designed as a heating coil.
  • a top heat or a grill heating can also be provided in a known manner (not shown).
  • an approximately horizontal baffle 6 is disposed below it, such that a channel 8 is formed between the bottom 5, the horizontal baffle 6 and lateral baffles (not shown).
  • the air conveyor 10 is in the embodiment according to Fig. 1 designed as a cross-flow fan whose axis of rotation is horizontal and parallel to the (closed) user door.
  • the cross-flow fan conveys the air from the bottom vent 14 through the channel 8, the rear chamber 11 and the rear mouth openings 12 back into the interior 2 of the muffle 1.
  • the cross-flow fan promotes the air in the reverse direction.
  • the ovens according to all the embodiments shown allow to produce a flow of hot air by the air is conveyed with the air conveyor 10 through the channel 8, when the lower heat 4 is simultaneously in operation. In this way, the oven can work as a hot-air oven.
  • the air conveyor 10 can basically be arranged at any point of the hot air cycle, in particular, as in Fig. 1 represented below the muffle 1.
  • the air conveyor 10 is arranged at one edge of the muffle 1, around which the hot air is guided, since in this case a particularly compact construction can be achieved.
  • a corresponding arrangement in which the air conveyor has been arranged at the rear, lower horizontal edge 15 of the muffle 1, is in Fig. 1 dashed lines.
  • the air conveyor 10 can take on any configuration that is suitable for conveying the hot air through the duct 8 and the ventilation opening.
  • Fig. 2 shows a variant in which the air conveyor 10 is designed as Achsiallsymmetricer. In order to generate a wide air flow in the channel 8, several such fans can be arranged horizontally next to each other.
  • the conveying axis 16 of the axial-flow fan (ie the axis about which the fan 17 of the axial-flow fan rotates and parallel to which the fan wheel conveys the air) is preferably at an angle to the horizontal (ie at an angle greater than 0 ° and less than 90 °, in particular between 15 ° and 75 °). By this inclination, how can Fig. 2 can be seen, the height in the region of the conveyor channel 9 can be reduced.
  • the air conveyor 10 can be advantageously arranged at an edge of the muffle 1, around which the hot air is guided.
  • a corresponding Arrangement in which the air conveyor has been arranged in a particularly compact manner at the rear, lower horizontal edge 15 of the muffle 1 is in Fig. 2 again shown in dashed lines.
  • an axial-flow fan has the advantage that the conveying direction of the air can be reversed in a simple manner. This is particularly advantageous if the hot air is to be guided in different directions in the manner to be described in more detail.
  • the arrangement of the drive is somewhat more difficult.
  • a particularly favorable arrangement can be selected if the air conveyor is arranged in the region of an edge of the muffle, as in Fig. 2 is shown.
  • the drive 18, depending on the position of the Achsiallbounders, behind or below the conveyor channel 9 are arranged.
  • baffles 19 In the area of the ventilation openings 12, 14 are preferably air baffles 19 (see. Fig. 1 ) are provided, which allow the air to divert the air into and out of the ventilation openings efficiently.
  • baffles are known in the art.
  • FIG. 3 Another embodiment of an oven is in Fig. 3 shown, with only the muffle walls and the channels and, dashed, the bottom heat are located.
  • 1 lateral ventilation openings 21 are provided in this embodiment on the side walls 20 of the muffle. These are connected to the front end of the channel 8 under the bottom 5 of the muffle 1.
  • the channel 8 is back, as in the embodiments according to Fig. 1 and 2 , via the conveyor channel 9 and the air conveyor 10 in turn connected to the rear chamber 11 and thus with the rear ventilation openings 12.
  • Fig. 3 The execution after Fig. 3 has the advantage that no bottom-side ventilation opening, through which food residues or liquids could fall into the channel 8, is necessary.
  • side channels 22 are provided, which extend around the horizontal, lower edges 23 of the muffle 1.
  • the lateral ventilation openings are located in the front half, in particular in the front quarter, the muffle 1, so that the air in the channel 8 can be performed over the entire depth of the bottom heat 4 as possible.
  • the oven is designed to promote the hot air alternately in a first and one of the first opposite second direction through the channel in the hot air operation.
  • the conveying direction of the hot air is thus changed, so that hot air once through the one (n) and another times by the other (m) vent (s) exits, whereby in the interior of the muffle 1 a more uniform average temperature and flow distribution can be achieved ,
  • control of the device e.g. be designed to reverse the flow direction at regular intervals.
  • the hot air passes through the channel 8 from front to back or from back to front.
  • a conveying direction transverse to this is possible if lateral ventilation openings 21 are provided on both side walls 20.
  • air baffles may be provided to the hot air to the hot spots to guide the lower heat 4 or to increase the path of the hot air.
  • the ventilation openings are advantageously provided in a conventional manner with covers or grids that complicate or prevent passage of particles or liquids.
  • the muffle 1 is, as usual, provided with an external insulation (not shown). This isolation runs below the channel 8 and outside the rear chamber 11.
  • the device described can be operated in a conventional manner (without hot air circulation) or as a hot air oven (with hot air circulation).
  • the control of the device switches the air conveyor 10 off or on depending on the instructions of the user.
  • the present invention thus allows in a simple manner to use the lower heat 4 not only for heating the bottom of the muffle 1, but also for generating a hot air flow.
  • the air flow, which runs along the lower heat 4 has the further advantage that heat, which is discharged from the lower heat 4 otherwise unused down, transferred to the hot air and the muffle can be supplied.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)
  • Baking, Grill, Roasting (AREA)
EP12008153.4A 2011-12-27 2012-12-06 Four de cuisson avec chauffage de la sole et de l'air chaud Withdrawn EP2610557A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH02050/11A CH703729A3 (de) 2011-12-27 2011-12-27 Backofen mit Unterhitze und Heissluft.

Publications (1)

Publication Number Publication Date
EP2610557A1 true EP2610557A1 (fr) 2013-07-03

Family

ID=45566738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12008153.4A Withdrawn EP2610557A1 (fr) 2011-12-27 2012-12-06 Four de cuisson avec chauffage de la sole et de l'air chaud

Country Status (2)

Country Link
EP (1) EP2610557A1 (fr)
CH (1) CH703729A3 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3009748A2 (fr) 2015-09-11 2016-04-20 V-Zug AG Four de cuisson avec chambre arrière pour circulation d'air chaud
EP3421888A1 (fr) * 2017-06-30 2019-01-02 LG Electronics Inc. Appareil de cuisson
CN110004275A (zh) * 2019-05-22 2019-07-12 江苏丰东热技术有限公司 一种温控导风系统
US10962229B2 (en) 2017-06-30 2021-03-30 Lg Electronics Inc. Cooking appliance
US11022324B2 (en) 2017-06-30 2021-06-01 Lg Electronics Inc. Cooking appliance and combustion control method of a cooking appliance
EP4253842A4 (fr) * 2020-11-26 2024-05-22 Sharp Kk Appareil de cuisson par chauffage

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101082727B1 (ko) * 2008-08-01 2011-11-10 엘지전자 주식회사 가스오븐레인지

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2214630A (en) * 1939-03-04 1940-09-10 Westinghouse Electric & Mfg Co Oven
DE7247152U (de) * 1972-12-23 1973-06-07 Kueppersbusch F & Soehne Ag Kochherd mit umwaelzung eines heissluftstromes durch ein geblaese in einem nach aussen abschliessbaren waermeraum
FR2287024A1 (fr) * 1974-10-04 1976-04-30 Gentilini Et Berthon Four a convection
EP0067806A1 (fr) * 1981-06-16 1982-12-22 Pierre Nibelle Four à cuire et à rôtir à chauffage au gaz
GB2256041A (en) * 1991-05-21 1992-11-25 Binder Wtb Labortech Gmbh Heating cabinet
EP1674796A2 (fr) * 2004-12-21 2006-06-28 Samsung Electronics Co., Ltd. Four électrique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT294984B (de) * 1968-06-21 1971-12-10 Siemens Elektrogeraete Gmbh Backofen
GB1414546A (en) * 1973-01-16 1975-11-19 Cannon Ind Ltd Gas-fired cooking ovens
US4829158A (en) * 1988-01-06 1989-05-09 Sunbeam Corporation Portable electric oven utilizing recirculating high speed air for cooking
EP2240727B1 (fr) * 2008-01-28 2014-12-10 Duke Manufacturing Company Four à convection

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2214630A (en) * 1939-03-04 1940-09-10 Westinghouse Electric & Mfg Co Oven
DE7247152U (de) * 1972-12-23 1973-06-07 Kueppersbusch F & Soehne Ag Kochherd mit umwaelzung eines heissluftstromes durch ein geblaese in einem nach aussen abschliessbaren waermeraum
FR2287024A1 (fr) * 1974-10-04 1976-04-30 Gentilini Et Berthon Four a convection
EP0067806A1 (fr) * 1981-06-16 1982-12-22 Pierre Nibelle Four à cuire et à rôtir à chauffage au gaz
GB2256041A (en) * 1991-05-21 1992-11-25 Binder Wtb Labortech Gmbh Heating cabinet
EP1674796A2 (fr) * 2004-12-21 2006-06-28 Samsung Electronics Co., Ltd. Four électrique

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3009748A2 (fr) 2015-09-11 2016-04-20 V-Zug AG Four de cuisson avec chambre arrière pour circulation d'air chaud
EP3009748A3 (fr) * 2015-09-11 2016-05-25 V-Zug AG Four de cuisson avec chambre arriere pour circulation d'air chaud
EP3421888A1 (fr) * 2017-06-30 2019-01-02 LG Electronics Inc. Appareil de cuisson
US20190003718A1 (en) * 2017-06-30 2019-01-03 Lg Electronics Inc. Cooking appliance
EP3745030A1 (fr) * 2017-06-30 2020-12-02 LG Electronics Inc. Appareil de cuisson
US10865994B2 (en) 2017-06-30 2020-12-15 Lg Electronics Inc. Cooking appliance
US10962229B2 (en) 2017-06-30 2021-03-30 Lg Electronics Inc. Cooking appliance
US11022324B2 (en) 2017-06-30 2021-06-01 Lg Electronics Inc. Cooking appliance and combustion control method of a cooking appliance
US11732902B2 (en) 2017-06-30 2023-08-22 Lg Electronics Inc. Cooking appliance and combustion control method of a cooking appliance
CN110004275A (zh) * 2019-05-22 2019-07-12 江苏丰东热技术有限公司 一种温控导风系统
EP4253842A4 (fr) * 2020-11-26 2024-05-22 Sharp Kk Appareil de cuisson par chauffage

Also Published As

Publication number Publication date
CH703729A2 (de) 2012-02-15
CH703729A3 (de) 2012-04-30

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