EP1978310B1 - Modulare Ofenstruktur - Google Patents

Modulare Ofenstruktur Download PDF

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Publication number
EP1978310B1
EP1978310B1 EP20070105495 EP07105495A EP1978310B1 EP 1978310 B1 EP1978310 B1 EP 1978310B1 EP 20070105495 EP20070105495 EP 20070105495 EP 07105495 A EP07105495 A EP 07105495A EP 1978310 B1 EP1978310 B1 EP 1978310B1
Authority
EP
European Patent Office
Prior art keywords
oven
shaped
shaped module
cavity
module
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.)
Not-in-force
Application number
EP20070105495
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English (en)
French (fr)
Other versions
EP1978310A1 (de
Inventor
Laura Fossati
Massimiliano Comolli
Idam Stival
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.)
Whirlpool Corp
Original Assignee
Whirlpool Corp
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 Whirlpool Corp filed Critical Whirlpool Corp
Priority to ES07105495.1T priority Critical patent/ES2537565T3/es
Priority to EP20070105495 priority patent/EP1978310B1/de
Publication of EP1978310A1 publication Critical patent/EP1978310A1/de
Application granted granted Critical
Publication of EP1978310B1 publication Critical patent/EP1978310B1/de
Not-in-force 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
    • F24C15/08—Foundations or supports plates; Legs or pillars; Casings; Wheels

Definitions

  • the present invention relates to a compact modular oven having a simple structure. More particularly, it relates to an oven whose structure is simply fabricated by connecting together two structural modules with a front frame, to which all the electrical elements making the oven work are connected.
  • the structure of a domestic oven includes a solid and enameled cavity, which is formed and assembled by means of hard tooling (i.e. moulds, hydraulic presses etc.).
  • a layer of insulation material is superposed to the cavity and an external chassis encloses and sustains all.
  • the single parts of the structure are mainly assembled during the manufacturing process and the transportation of the oven, being not modular, requires a lot of space that is not efficiently used.
  • US5160829 discloses an electric heat-convention stove, which is assembled from several discrete parts and in which the top module contains the stove controls and heating means.
  • FR2561357 teaches about a household oven made from few parts and simply constructed.
  • US4245615 discloses a modular construction for cooking ranges which involves the design and manufacture of standardized parts or modules that may be used in many different models of ranges. This invention applies to gas and electric ranges.
  • US2612590 discloses a sectional, electric kitchen range selectively assembled from a plurality of basic units based on user preference.
  • US3428039 shows an oven formed from foldable walls.
  • EP 0394978 A2 discloses an oven which is built up modularly. It is not disclosed in the art a modular, thermally insulated oven composed by few and simply constructed modules that are easy to be transported due to a compact shape, and that it is simple to assemble even for common people that, without having specific knowledge, can buy, transport and assemble the oven by themselves. In fact, what is disclosed in the art presents an appreciable complexity for the assembly of the parts, requiring the presence of technical experts. An object of the present invention is therefore to provide an oven that does not present the drawbacks of the prior art and an assembly method thereof. This object is reached by an oven according to claim 1 and a method according to claim 10.
  • the cavity structure of the oven is easily obtainable by the assembly of two modules that have a multi layer compact structure, already including the thermal insulation material.
  • the electrical elements such as, heaters, sensors, controls, user interface, fan with motors, terminal blocks, etc. are all integrated into a third component, the oven front frame.
  • the heating elements can be rotated parallel to the frame.
  • a detachable door closes the oven cavity as in traditional ovens.
  • an oven structure 30 comprises a U-shaped module 32, a L-shaped module 34 and a front frame 36.
  • the U-shaped module 32 includes an elongated bottom part 50, which may be formed by means of "soft” or flexible tooling, for instance bending tools and cutting machine, whose cost is lower than the one required for buying "hard” or machine formed tools (moulds, press, etc.).
  • the U-shaped module 32 defines three portions of the oven structure, specifically: the exterior bottom wall 51 and the two exterior side walls 52, 53.
  • the two exterior side walls 52, 53 originally planar with the exterior bottom wall 51 before bending, can be folded along two transversal lines L1, L2, in order to assume a perpendicular direction referred to the plane of the bottom wall 51, and becoming the two exterior side walls 52,53 of the cavity structure 20.
  • the bottom part 50 presents U-shaped edges in order to define front and back rail-shaped profiles 61 and 63 respectively, on the longest sides, said two profiles retaining a slab 100 made of insulating material.
  • the front and back rail-shaped profiles 61 and 63 present interruptions K for allowing the bending of the bottom part 50.
  • the bottom part 50 presents short sides 64, adapted to secure the L-shaped module 34 to the U-shaped module 32.
  • the front and back profiles 61 and 63 are adapted to be fixed to inner walls 58, 59, 60 in order to define a sort of box structure in which the insulating slab 100 is inserted.
  • the bottom part 50 also includes coupling slots 54, 55 placed on the front profile 61 by which two hinges receivers 56, 57 ( Fig. 2 ) are secured.
  • the two hinge receivers 56, 57 are fixed to the coupling slots 54, 55 by means of screws or rivets, or by any other known fastening technology, including spot welding.
  • the two hinge receivers 56, 57 will support the oven door 99 ( Fig. 12 , 13 ), when applied to the oven structure 30.
  • the coupling slots 54, 55, and therefore the hinge receivers 56,57 are preferably located on two exterior side wall parts 52, 53, but can be also located in any other zone of the bottom part 50.
  • the hinge receivers can be located on a front frame that will be described in the following.
  • the oven door can present a single hinge, requiring only one hinge receiver to support it.
  • the inner central bottom wall 58, ( Fig.3, 4 , 10 , 11 ) and the two separate inner sides walls 59, 60 are the interior parts of the cavity structure 20 and are fastened to the rail-shaped profiles 61 and 63 of the elongated bottom part 50 in order to keep the insulating slab 100 enclosed.
  • the slab 100 is superposed, entirely or partially, to the bottom part 50 insulating the elongated bottom part 50 from the inner walls 58, 59, 60 in the assembled configuration.
  • the inner side walls 59, 60 present slots 54A to allow the coupling of the hinges through them.
  • the three inner walls 58, 59, 60 are secured to the profiles 61 and 63 of the bottom part 50 by means of screws or rivets, or by any other known technology including spot welding.
  • the hinge receivers are directly positioned and secured to the inner sides walls 59, 60.
  • the hinges are assembled with the U-shaped module or on the door frame and the hinge receivers are mounted on the oven door.
  • the peculiar design of an oven according to the present invention allows to obtain ovens of different overall dimensions and volume by varying the length h ( Fig. 2 ) of the exterior walls 52,53, of the bottom part 50 and, in the same manner, the length h of the related lateral sides walls 59, 61 and of the upper wall part 81 ( Fig. 8 ).
  • This parameterization of the length h would not change the cost of the tooling operation for this part, but would provide versatility to the modular oven.
  • the low cost of the tooling for this construction can provide a significant competitiveness for the mass production of this oven.
  • the U-shaped module 32 has therefore a compact multi-layer structure, that is foldable, on which a first layer is given by the elongated bottom part 50, a second layer being given by the slab 100 of insulating material, and a third layer is defined by the interior bottom and side walls 58, 59, 60.
  • the L-shaped module 34 includes a elongated top part 80, which is created by means of "soft" tools as well, defining two portions of the oven structure, i.e. an exterior upper wall part 81 and an exterior back side wall 82.
  • the two portions of the elongated top part 80 originally planar, can be relatively folded along a line L3, so that the exterior upper wall portion 81 assumes a perpendicular position with reference to the exterior back side wall portion 82.
  • Two slabs of insulating material 110, 111 are disposed to cover the elongated top part 80, insulating it from the interior panels of the cavity structure 20, namely inner upper wall element 83, and inner back side wall 84, connected and secured to the top part 80.
  • the design of the elongated top part 80 also includes rail-shaped profiles 85 ( Fig. 8 ) on the long sides of the elongated top part 80, such profiles being the two lateral closures of the top part 80 and retaining the two slabs of insulation material.
  • the rail-shaped profiles 85 present interruptions J for allowing the bending of the top part 80.
  • the rail-shaped profiles 85 are adapted to secure the U-shaped module 32 to the L-shaped module 34.
  • the interior side 87 of the top part 80 presents snap slots 86 adapted to be fixed to an inner upper wall part 83 and to an inner back side wall 84, in order to define a sort of box structures in which the insulating slabs 110, 111 are enclosed.
  • the two inner walls 83, 84 ( figure 8 ) are then secured to snap slots 86 of the top part 80.
  • the L-shaped module 34 has a compact multi-layer structure, that is foldable, on which the first layer is the top part 80, a second layer is given by the insulation material slabs 110, 111, and a third layer is defined by the interior upper and back walls 83,84.
  • the cavity structure 20 can be obtained by folding the U-shaped module 32 and the L-shaped module 34 according Fig. 10 , and then connecting together the modules U, L on their respective edges 64, 85.
  • the cavity structure 20 presents one frontal opening 31 ( Fig.11 and 15 ), through which the food can be inserted.
  • the entire cavity structure 20 can be made of plastic material, instead of metal.
  • the entire cavity structure 20 can be made of ceramic materials.
  • the entire cavity structure 20 can be made of a mixed composition of materials (i.e. having the inner walls made of stainless steel material and the outers walls made of plastic).
  • a frontal frame 36 made of metal is the frontal portion of the oven structure 30 that has to be connected to the cavity structure 20.
  • the frontal frame 36 may comprise door bumpers, door gasket and/or door switches. It also comprises a control panel support structure 44, to which an user interface panel 45 and the related control box 33 are secured, and all the electrical components, described as follows, required to make the oven work.
  • the control panel structure 44 and/or the control box 33 support the oven control elements, like the rotary switch selector 28, the thermostat device 29, the oven timer 27 or the oven control unit, a cooling fan (such component being not shown in the drawings).
  • the control box 33 is connected to the backside of the control panel structure 44 to enclose the oven control elements.
  • the user interface panel 45 is therefore applied to the front side of the control panel structure 44 presenting a display (not shown), indicators (not shown), thermostat knob 29, a function selector knob 28, a timer knob 27 and the user interface elements needed to the user for setting the oven.
  • the front frame 36 To the front frame 36 are also fixed all the electrical elements of the oven, such as temperature sensor (not shown), oven cavity light 49, heating elements 34, 35, door latching system (not shown), oven cavity fan (not shown), oven cooling fan (not shown). These active elements are electrically connected through a harness system (not shown) that is entirely enclosed by front frame 36 and by the control box 33.
  • the heating elements 34, 35 are pivotally connected to the front frame 36, in order to allow an independent rotation of about 90° of such heating elements 34, 35 (as indicated by the arrows in Fig. 12 and 13 ). Both the heating elements 34, 35 can assume at least two positions. In the first position the heating elements 34, 35 are substantially planar with the plane of the frame 36.
  • the heating elements are substantially perpendicular to the plane of the front frame 36.
  • This second position is the working position of the heating elements 34, 35 activated.
  • the possibility to rotate the heating elements 34, 35 of the assembled oven improves the clean-ability of the modular oven.
  • the rotation of the heating elements 34, 35 also provides a compact structure that facilitates the packaging and the transportation of the frontal frame 36.
  • the front frame 36 is aligned, connected and secured to the oven cavity structure 20 generating the oven structure 30. Consequence of the front frame 36 construction is an improved versatility of the oven.
  • a glass oven door 99 provided with hinges 42, 43 is connected through the hinge receivers 56, 57 to the oven structure 30, closing the oven cavity frontal opening 31.
  • the oven has to be installed into the supporting cabinet or furniture and, the electrical connections need to be completed and the heating elements 34, 35 need to be positioned in their horizontal position.
  • the terminals block (not shown) for the power supply connection is located in the area of the control box 33.
  • the oven according to the present invention presents a compact structure of its composing modules 32, 34, and of its front frame 36, resulting in a simple and quick assembling operation.
  • control panel structure together with the oven control elements and the user interface panel is integrated with the L-shaped module that in this case presents a second folding line.
  • control panel structure together with the oven control elements and the user interface panel is integrated with the oven door 99.
  • the oven has a modular construction in which only one of the modules (i.e. the frontal frame 36) includes all the active and electric parts, like heating elements, motor wiring etc.; while the other modules are just "passive", in the sense that they do not have electrical components and electrical connections.
  • some of the electrical elements required to make the oven work are integrated into the U-shaped 32 and/or the L-shaped 34 modules and/or in the front frame 36, presenting electrical/electronic connection elements (not shown) between said modules 32, 34 and the front frame 36.
  • the thermostat 120 is integrated with the L-shaped module 34 and is connected to the thermostat knob 29, which is located on the user interface panel 45, by means of cardanic transmission system 38.
  • the oven structure 30 includes a microwave generators, and the U-shaped module and/or the L-shaped module include wave guides.
  • the modular oven according to the present invention requires a low investment cost and it is particularly suitable for manufacturing processes presenting low level of automated assembly.
  • the modular oven according to the present invention can have the most simple modules (i.e. the ones without electrical components, as the modules U and L- shaped 32 and 34) remotely fabricated and separately shipped to the oven assembling location, improving the competitiveness of the manufacturing process.
  • all the electrical elements can be integrated with the front frame 36, resulting in a simplification of the oven construction and of servicing thereof.
  • the oven according to the present invention is composed by few, simply constructed modules thermally insulated, easy to be transported due to their compact shape.
  • Such modular structure of the oven is simple to assemble, even for common people that, without having specific knowledge, can buy, transport and assemble the oven by themselves.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Ovens (AREA)
  • Electric Stoves And Ranges (AREA)

Claims (12)

  1. Ofen, umfassend: ein U-förmiges Modul (32) und einen Frontrahmen (36), dadurch gekennzeichnet, dass das U-förmige Modul (32) eine mehrschichtige Struktur (50, 100, 58, 59, 60) aufweist, wobei der Ofen ferner ein L-förmiges Modul (34) umfasst, das eine mehrschichtige Struktur (80, 83, 84) aufweist, wobei das U-förmige Modul (32) und das L-förmige Modul (34) miteinander verbunden werden können, um einen Garraum (20) zu bilden, ferner dadurch gekennzeichnet, dass der Frontrahmen (36) mit dem Garraum (20) verbunden ist und mindestens ein elektrisches Element (34, 35, 49) umfasst.
  2. Ofen nach Anspruch 1, dadurch gekennzeichnet, dass der Frontrahmen (36) Ofenbedienelemente (27, 28, 29) umfasst.
  3. Ofen nach Anspruch 1, umfassend eine Tür (99) zum Verschließen des Garraums (20), dadurch gekennzeichnet, dass entweder das U-förmige Modul (32) oder der Frontrahmen (36) oder die Tür (99) mindestens ein Tragelement für ein Türgelenk (42, 43, 56, 57) umfasst.
  4. Ofen nach Anspruch 1, dadurch gekennzeichnet, dass das U-förmige Modul (32) umfasst:
    - ein planares Element (50), das die äußere untere Wand (51) und die zwei äußeren Seitenwände (52, 53) der Ofenkonstruktion definiert,
    - eine eingeschlossene Schicht (100) aus Isolationsmaterial,
    - mindestens ein inneres Garraum-Wandelement, das die innere untere Wand (58) und die zwei inneren Seitenwände (59, 60) der Ofenkonstruktion definiert;
    und dadurch, dass das L-förmige Modul (34) umfasst:
    - ein planares Element (80), das die äußere obere Wand (81) und die äußere rückseitige Wand (82) des Garraums (20) definiert,
    - eine eingeschlossene Schicht (110, 111) aus Isolationsmaterial, und
    - mindestens ein inneres Garraum-Wandelement, das die innere obere Wand (83) und die innere rückseitige Wand (84) des Garraums (20) definiert.
  5. Ofen nach Anspruch 1, dadurch gekennzeichnet, dass das U-förmige Modul (32) und das L-förmige Modul (34) klappbar sind.
  6. Ofen nach Anspruch 1, dadurch gekennzeichnet, dass mindestens die Konstruktion eines der Module, entweder des U-förmigen Moduls (32) oder des L-förmigen Moduls (34), ein planares Element (50, 80) umfasst, das ein schienenförmiges Profil (85, 61, 63) umfasst, welches mit mindestens einem damit verbundenen separaten Paneel (58, 59, 60, 83, 84) zusammenwirkt.
  7. Ofen nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Frontrahmen (36) mit klappbaren Heizelementen (34, 35) versehen ist.
  8. Ofen nach Anspruch 1, dadurch gekennzeichnet, dass der Frontrahmen (36) mit einer Komponente versehen ist, die ausgewählt wird aus der Gruppe bestehend aus:
    - Garraumleuchte,
    - Garraumventilator,
    - Ofenkühlventilator,
    - Heizelement,
    - Mikrowellengenerator oder einer Kombination daraus.
  9. Ofen nach Anspruch 1, dadurch gekennzeichnet, dass das L-förmige Element (34) oder das U-förmige Element (32) oder beide Elemente mit Wellenleitern und mit Wellenöffnungen, die in den inneren Garraum-Wandseiten (58, 59, 60, 83, 84) angeordnet sind, versehen sind.
  10. Verfahren zum Zusammenbauen des Ofens nach Anspruch 1, wobei die Zusammenbauschritte umfassen:
    - Zusammenbauen des L-förmigen Moduls (34);
    - Zusammenbauen des U-förmigen Moduls (32);
    - Verbinden des L-förmigen Moduls (34) mit dem U-förmigen (32) Modul, welche den Garraum (20) bilden;
    - Verbinden des Frontrahmens (36) mit dem Garraum (20), welche die Ofenkonstruktion (30) bilden;
    - Zusammenbauen der Ofentür (99); und
    - Montieren der Ofentür (99) an der Ofenkonstruktion (30).
  11. Verfahren zum Zusammenbauen des Ofens nach Anspruch 10, wobei die Schritte zum Zusammenbauen des L-förmigen Moduls (34) umfassen:
    - Befestigen der Isolierung (110, 111);
    - Verbinden mindestens einer inneren Wand (83, 84); und
    - Umklappen zu einer L-Form.
  12. Verfahren zum Zusammenbauen des Ofens nach Anspruch 10, wobei die Schritte zum Zusammenbauen des U-förmigen Moduls (32) umfassen:
    - Befestigen der Isolierung (100);
    - Verbinden mindestens einer inneren Wand (58, 59, 60); und
    - Umklappen zu einer U-Form.
EP20070105495 2007-04-02 2007-04-02 Modulare Ofenstruktur Not-in-force EP1978310B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES07105495.1T ES2537565T3 (es) 2007-04-02 2007-04-02 Horno modular compacto
EP20070105495 EP1978310B1 (de) 2007-04-02 2007-04-02 Modulare Ofenstruktur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20070105495 EP1978310B1 (de) 2007-04-02 2007-04-02 Modulare Ofenstruktur

Publications (2)

Publication Number Publication Date
EP1978310A1 EP1978310A1 (de) 2008-10-08
EP1978310B1 true EP1978310B1 (de) 2015-04-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070105495 Not-in-force EP1978310B1 (de) 2007-04-02 2007-04-02 Modulare Ofenstruktur

Country Status (2)

Country Link
EP (1) EP1978310B1 (de)
ES (1) ES2537565T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025175195A1 (en) * 2024-02-14 2025-08-21 Traina Peter Nicholas Portable interlocking modular oven

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011107847A1 (de) * 2011-07-01 2013-01-03 Forschungszentrum Jülich GmbH Modulares Ofensystem
EP2615377B1 (de) * 2012-01-13 2017-05-03 Electrolux Home Products Corporation N.V. Ofeninnenraum und Ofen
CN104367203B (zh) * 2014-11-20 2017-09-19 广东美的厨房电器制造有限公司 用于电烤箱的内胆及具有它的电烤箱
ES2838023T3 (es) 2015-01-29 2021-07-01 Omya Int Ag Proceso para fabricar una solución de un hidrogenocarbonato alcalinotérreo
CN216147866U (zh) * 2020-11-06 2022-04-01 广东格兰仕集团有限公司 一种用于容置烹饪食材的腔体结构以及烹饪设备
CN112954840B (zh) * 2021-03-01 2023-11-03 广东美的厨房电器制造有限公司 烹饪装置
CN112914348A (zh) * 2021-03-01 2021-06-08 广东美的厨房电器制造有限公司 烹饪装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3534724A (en) * 1963-05-24 1970-10-20 Gunter Petz Housing for a forced draught space heater
JPH074405Y2 (ja) * 1989-04-25 1995-02-01 シャープ株式会社 加熱調理器の枠体構造

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025175195A1 (en) * 2024-02-14 2025-08-21 Traina Peter Nicholas Portable interlocking modular oven

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Publication number Publication date
EP1978310A1 (de) 2008-10-08
ES2537565T3 (es) 2015-06-09

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