EP3568643B1 - A cooking oven, in particular a domestic cooking oven - Google Patents
A cooking oven, in particular a domestic cooking oven Download PDFInfo
- Publication number
- EP3568643B1 EP3568643B1 EP18700195.3A EP18700195A EP3568643B1 EP 3568643 B1 EP3568643 B1 EP 3568643B1 EP 18700195 A EP18700195 A EP 18700195A EP 3568643 B1 EP3568643 B1 EP 3568643B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cavity
- oven
- cavity wall
- insulating layer
- cooking 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.)
- Active
Links
- 238000010411 cooking Methods 0.000 title claims description 45
- 239000000463 material Substances 0.000 claims description 39
- 238000010438 heat treatment Methods 0.000 claims description 33
- 239000011888 foil Substances 0.000 claims description 31
- 239000004753 textile Substances 0.000 claims description 18
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 238000004140 cleaning Methods 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims description 5
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 5
- 239000004964 aerogel Substances 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 4
- 235000019362 perlite Nutrition 0.000 claims description 4
- 239000010451 perlite Substances 0.000 claims description 4
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 3
- 229910001887 tin oxide Inorganic materials 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 239000004922 lacquer Substances 0.000 description 2
- 230000003446 memory effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
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
- F24C15/34—Elements and arrangements for heat storage or insulation
-
- 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
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/06—Arrangement or mounting of electric heating elements
- F24C7/067—Arrangement or mounting of electric heating elements on ranges
Definitions
- FIG 5 illustrates a schematic sectional side view of an example of a conventional cooking oven 10.
- the cooking oven 10 comprises an oven cavity 12, wherein a front opening of said oven cavity 12 is openable and closable by an oven door 18.
- the oven cavity 12 is enclosed by a cavity wall 14.
- the cavity wall 14 is enclosed by an insulating layer 16.
- the oven cavity 12 is arranged within an oven chassis 20.
- a fan 22 is arranged in a rear portion of the oven cavity 12.
- a fan motor 24 for driving the fan 22 is arranged behind the oven cavity 12.
- An exhaust fan 26 is arranged above the oven cavity 12.
- a foodstuff carrier 28 for supporting foodstuff 30 is inside the oven cavity 12.
- a top heating element 32 is arranged beneath a top side of the cavity wall 14.
- the object is achieved by the oven cavity according to claim 1.
- the core of the present invention is the insufficient mechanical strength of the section of the cavity wall, so that said section of the cavity wall cannot bear the cavity component.
- the cavity wall with the insufficient mechanical strength reduces the mass of the oven cavity and allows an easy cleaning of said cavity wall.
- the cavity wall stores less heat, reduces the energy consumption and accelerates the heating-up of the oven cavity.
- the cavity wall contributes to the reduced mass of the oven cavity, the reduced energy consumption and the accelerated heating-up of the oven cavity.
- the chambers of the insulating layer are filled with loose insulating material, preferably with perlite or aerogel.
- the chambers of the insulating layer may be evacuated or charged with low pressure.
- the insulating layer may be arranged in contact with at least a part of the outer surface of the cavity wall, in particular wherein the insulating layer supports at least a part of at least one of said section of the cavity wall having insufficient mechanical strength, in particular wherein the insulating layer supports at least a part of said foil, woven or non-woven textile material comprised in said section of the cavity wall.
- the cavity wall is adapted to be exchangeable by a user, in particular wherein the cavity is adapted for manual exchangeable arrangement by a user within at least one of an outer oven chassis or said insulating layer, in particular wherein the cavity wall comprises at least one, preferably manually, releasable fixation means corresponding to at least one fixation means of the outer oven chassis or the insulating layer.
- the cavity wall may comprise a material capable of changing its shape during a heating step after the arrangement of the cavity wall by the user in order to adapt to a predetermined dimension and/or shape of the oven cavity, in particular wherein the cavity wall includes at least one pleated buffer space contractible by a shape memory alloy, when said cavity wall is heated up for the first time.
- said foil, woven or non-woven textile material may be layered by at least one low emissivity coating, for example tin oxide, preferably on at least the outside of the oven cavity wall.
- at least one low emissivity coating for example tin oxide
- a top heating element 32 is arranged beneath a top side of the cavity wall 14.
- a bottom heating element 34 is arranged above a bottom top side of the cavity wall 14.
- a rear heating element 36 is arranged in front of a rear top side of the cavity wall 14.
- a cavity lamp 37 is arranged inside the oven cavity 12 at the cavity wall 14. In this example, the cavity lamp 37 is arranged beneath the top cavity wall 46.
- the vacuum insulated chambers are filled with perlite.
- Standard heating elements e.g. tubular heating elements, may be connected to the insulating layer 16 and used as a support for bearing a thin cavity foil without any coating. Said heating elements are supported by the oven chassis 20.
- the thin cavity foil forms the cavity wall 14 and may be easily exchanged when it is dirty.
- the exchangeable cavity foil comprises a pleated buffer space, which is contracted by a shape memory alloy when it is heated up the first time.
- the foodstuff carrier 28 is supported by a holder arranged at the oven door 18.
- the fan motor 24 for a hot air function is also supported by the oven chassis 20.
- FIG 4 illustrates a schematic sectional side view of the part of the insulating layer 16 for the cooking oven 10 according to the preferred embodiment of the present invention in a heated state.
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)
- Baking, Grill, Roasting (AREA)
Description
- The present invention relates to a cooking oven, in particular a domestic cooking oven, according to the preamble of
claim 1. - A cooking oven consists of an oven cavity including a cavity wall made of metal and enclosed by an insulating layer. For example, the cavity wall is enamelled. The cavity wall must be strong enough for supporting heating elements, grid holders and/or a fan cover of an air heater. During a cooking process the oven cavity stores a substantial part of the consumed energy as thermal energy. The thermal energy stored by the oven cavity may be up to 10 % of the consumed energy. The amount of the stored energy depends on the mass and specific heat capacity of the oven cavity and on the temperature inside said oven cavity.
-
FIG 5 illustrates a schematic sectional side view of an example of aconventional cooking oven 10. Thecooking oven 10 comprises anoven cavity 12, wherein a front opening of saidoven cavity 12 is openable and closable by anoven door 18. Theoven cavity 12 is enclosed by acavity wall 14. In turn, thecavity wall 14 is enclosed by an insulatinglayer 16. Theoven cavity 12 is arranged within anoven chassis 20. Afan 22 is arranged in a rear portion of theoven cavity 12. Afan motor 24 for driving thefan 22 is arranged behind theoven cavity 12. Anexhaust fan 26 is arranged above theoven cavity 12. Afoodstuff carrier 28 for supportingfoodstuff 30 is inside theoven cavity 12. Atop heating element 32 is arranged beneath a top side of thecavity wall 14. Abottom heating element 34 is arranged beneath a bottom top side of thecavity wall 14. Arear heating element 36 is arranged in front of a rear top side of thecavity wall 14. Afan cover 40 is arranged in the rear portion of theoven cavity 12 and covers thefan 22 and therear heating element 36. Thecavity wall 14 supports thefoodstuff carrier 28, theheating elements fan 22, thefan motor 24 and thefan cover 40. This requires a sufficient thickness and results in a large mass of saidcavity wall 14. Usually, thecavity wall 14 is made of metal. Thecavity wall 14 stores a big amount of thermal energy and increases the energy consumption. Further, the preheating of theoven cavity 12 is delayed by said large mass of thecavity wall 14. - Another aspect of the rigid cavity wall made of metal is that the cleaning of the inner surface of the cavity wall requires abrasive methods in order to remove dirt from said inner surface.
- It is an object of the present invention to provide an oven cavity for a cooking oven, which allows reduced energy consumption of the cooking oven and an easy cleaning of a cavity wall.
- The object is achieved by the oven cavity according to
claim 1. - According to the present invention the cavity wall comprises a section at which at least one of said cavity component is arranged, wherein at least said section of the cavity wall has insufficient mechanical strength to bear said at least one cavity component, so that said section of the cavity wall cannot bear the cavity component, and wherein the cooking oven comprises a bearing structure that is arranged outside of the cavity wall, wherein said at least one cavity component that is arranged inside the oven cavity at said section of the cavity wall having insufficient mechanical strength is connected or connectable to said bearing structure, and wherein said section of the cavity wall with insufficient mechanical strength comprises at least one hole for connecting said at least one cavity component that is arranged at said bearing structure.
- The core of the present invention is the insufficient mechanical strength of the section of the cavity wall, so that said section of the cavity wall cannot bear the cavity component. The cavity wall with the insufficient mechanical strength reduces the mass of the oven cavity and allows an easy cleaning of said cavity wall. The cavity wall stores less heat, reduces the energy consumption and accelerates the heating-up of the oven cavity. The cavity wall contributes to the reduced mass of the oven cavity, the reduced energy consumption and the accelerated heating-up of the oven cavity.
- Preferably, at least said section of the cavity wall with insufficient mechanical strength, in particular at least one lateral, bottom, top or rear cavity wall or all of said lateral, bottom, top or rear cavity walls of the oven cavity, comprises a foil or a woven or non-woven textile material comprising at least one predetermined material, such as an oven temperature-resistant polymer, in particular a temperature-resistant polymer withstanding the temperatures of a pyrolytic oven-cleaning, or a sheet metal foil, in particular wherein said sheet metal foil has a thickness smaller than 0.6 mm, preferably smaller than 0.5 mm.
- In particular, the bearing structure has a mechanical strength that is adapted to bear said at least one cavity component essentially independent of said section of the cavity wall.
- Further, a front opening of the oven cavity is openable and closable by an oven door.
- Moreover, the oven cavity may be at least partially enclosed on its outside by an insulating layer that is adapted to effectively reduce the loss of heat from the oven cavity via the cavity wall, in particular via said section of the cavity wall with insufficient mechanical strength, in particular via said foil, woven or non-woven textile material.
- In this case, the insulating layer may include a structure with a plurality of the chambers. Said chambers may have at least one predetermined shape. Preferably, the insulating layer includes a honeycomb structure. In general, the chambers may have an arbitrary shape.
- For example, the chambers of the insulating layer are filled with loose insulating material, preferably with perlite or aerogel. Alternatively or additionally, the chambers of the insulating layer may be evacuated or charged with low pressure.
- Furthermore, the insulating layer may be arranged in contact with at least a part of the outer surface of the cavity wall, in particular wherein the insulating layer supports at least a part of at least one of said section of the cavity wall having insufficient mechanical strength, in particular wherein the insulating layer supports at least a part of said foil, woven or non-woven textile material comprised in said section of the cavity wall.
- In particular, the cavity wall is adapted to be exchangeable by a user, in particular wherein the cavity is adapted for manual exchangeable arrangement by a user within at least one of an outer oven chassis or said insulating layer, in particular wherein the cavity wall comprises at least one, preferably manually, releasable fixation means corresponding to at least one fixation means of the outer oven chassis or the insulating layer.
- In this case, the cavity wall may comprise a material capable of changing its shape during a heating step after the arrangement of the cavity wall by the user in order to adapt to a predetermined dimension and/or shape of the oven cavity, in particular wherein the cavity wall includes at least one pleated buffer space contractible by a shape memory alloy, when said cavity wall is heated up for the first time.
- For example, the cavity wall is made of at least one of a woven or non-woven textile material and/or of an electrically heatable material, in particular wherein an electrically heatable material is interwoven with said woven textile material or intertwined with said non-woven textile material.
- Additionally, the foil, woven or non-woven textile material may be layered by at least one non-sticking coating, preferably on at least the inside of the oven cavity wall.
- Moreover, said foil, woven or non-woven textile material may be layered by at least one low emissivity coating, for example tin oxide, preferably on at least the outside of the oven cavity wall.
- In particular, the cooking oven comprises at least one oven chassis surrounding the cavity wall, preferably wherein the insulating layer is arranged between the oven chassis and the cavity wall.
- Moreover, at least one of said bearing structure may be formed as part of at least one of the insulating layer and/or the oven chassis.
- The present invention will be described in further detail with reference to the drawings, in which
- FIG 1
- illustrates a schematic sectional side view of a cooking oven according to a preferred embodiment of the present invention,
- FIG 2
- illustrates a schematic perspective view of a section of an insulating layer for the cooking oven according to the preferred embodiment of the present invention,
- FIG 3
- illustrates a schematic sectional side view of a part of the insulating layer for the cooking oven according to the preferred embodiment of the present invention in a cold state,
- FIG 4
- illustrates a schematic sectional side view of the part of the insulating layer for the cooking oven according to the preferred embodiment of the present invention in a heated state, and
- FIG 5
- illustrates a schematic sectional side view of an example of the cooking oven according to the prior art.
-
FIG 1 illustrates a schematic sectional side view of acooking oven 10 according to a preferred embodiment of the present invention. - The
cooking oven 10 comprises anoven cavity 12. A front opening of saidoven cavity 12 is openable and closable by anoven door 18. Theoven cavity 12 includes acavity wall 14 and an insulatinglayer 16. The inner space of theoven cavity 12 is enclosed by thecavity wall 14. In turn, thecavity wall 14 is enclosed by the insulatinglayer 16. Thecavity wall 14 includes twolateral cavity walls 42, abottom cavity wall 44, atop cavity wall 46 and arear cavity wall 48. Theoven cavity 12 is arranged within anoven chassis 20. Aheating fan 22 is arranged in a rear portion of theoven cavity 12. Theheating fan 22 is attached at a rear side of thecavity wall 14. Afan cover 40 is arranged in the rear portion of theoven cavity 12 and covers thefan 22. Afan motor 24 for driving theheating fan 22 is arranged behind theoven cavity 12, but within theoven chassis 20. Anexhaust fan 26 is arranged above theoven cavity 12. Afoodstuff carrier 28 for supportingfoodstuff 30 is inside theoven cavity 12. Aside grid 27 is arranged at thelateral cavity walls 42 for bearing thefoodstuff carrier 28. - A
top heating element 32 is arranged beneath a top side of thecavity wall 14. Abottom heating element 34 is arranged above a bottom top side of thecavity wall 14. Arear heating element 36 is arranged in front of a rear top side of thecavity wall 14. Acavity lamp 37 is arranged inside theoven cavity 12 at thecavity wall 14. In this example, thecavity lamp 37 is arranged beneath thetop cavity wall 46. - The
cavity wall 14 does not have any supporting functions. The supporting functions are provided by the insulatinglayer 16 and/or by theoven chassis 20. In this example, theheating fan 22, thefan motor 24, thetop heating element 32, the bottomtop heating element 34, therear heating element 36, thefan cover 40 and thefoodstuff carrier 28 are supported by theoven chassis 20. Thecavity wall 14 is supported by the insulatinglayer 16. - Since the
cavity wall 14 does not have any supporting functions, it can be made of thin material. Thecavity wall 14 has an insufficient mechanical strength to bear the cavity components. Thin material stores little energy and allows low energy consumption of thecooking oven 10 and a fast preheating of theoven cavity 12. Furthermore, the thin material of thecavity wall 14 is flexible, which is advantageous for the inner surface of saidcavity wall 14. The thin material of thecavity wall 14 can be bent in order to break the bond between dirt and the inner surface of saidcavity wall 14, which allows an easy cleaning of said inner surface of thecavity wall 14. - According to one embodiment, the
cavity wall 14 is made of a foil. Alternatively, thecavity wall 14 may be made of a woven or non-woven textile material. Additionally, the thin material, e.g. said foil, for thecavity wall 14 may be layered by a non-stick coating. Said non-stick coating contributes to the easy cleaning of the inner surface of thecavity wall 14. For example, "SILIKOFTAL" is used as the non-stick coating. Further, a low emissivity coating, e.g. tin oxide, may be layered on the thin material. Moreover, a heatable coating may be layered on the thin material. A carbon nanotubes based heatable coating is described inDE 10 2007 018 540 A1 - According to another embodiment, the
cavity wall 14 may be made of the woven textile material, wherein a heatable material is interwoven with said woven material. - The foil or woven material for the
cavity wall 14 may be connected to anexternal bearing structure 50, so that theoven cavity 12 has a structure like a tent. The bearingstructure 50 is arranged outside of theoven cavity 12. Thecomponents oven cavity 14 are connected to the bearingstructure 50. In particular, saidbearing structure 50 has a mechanical strength adapted to bear said at least one of thecomponents oven cavity 12. The fastening of thecomponents oven cavity 12 is independent of the mechanical strength of thecavity wall 14. A number ofholes 17 penetrate thecavity wall 14 and the insulatinglayer 16. Thecomponents oven cavity 14 are connected to the bearingstructure 50 through said holes 17. Thecavity wall 14 is exchangeable by a user. Thecavity wall 14 comprises, preferably manually, releasable fixation means 54 corresponding to fixation means 52 of theouter oven chassis 20 or the insulatinglayer 16. - In this example, the foil or the woven or non-woven material of the
cavity wall 14 is removable by the user. Preferably, the foil includes a pleated flexible buffer space, which contracts and fixes the foil during the first heating-up. The heat contraction may be realized by a one-way memory effect of shape memory alloys. - The supporting functions are provided by the insulating
layer 16, by theheating elements oven chassis 20, by the bearingstructure 50 and/or by another structure located outside theoven cavity 14. -
FIG 2 illustrates a schematic perspective view of a section of an insulatinglayer 16 for thecooking oven 10 according to the preferred embodiment of the present invention.FIG 2 shows an example of the structure of the insulatinglayer 16 according to the present invention. - According to the preferred embodiment, the insulating
layer 16 has a structure with a plurality of chambers. In this example, the insulatinglayer 16 has a honeycomb structure. The insulatinglayer 16 is formed by a plurality of chambers having hexagonal base area. Said hexagonal base areas extend in the main plane of the insulatinglayer 16. In general, the insulatinglayer 16 has a structure with a plurality of chambers of an arbitrary shape. - The chambers of the honeycomb structure of the insulating
layer 16 may be filled with loose insulating material. For example, said loose insulating material is aerogel or perlite. The chambers of the honeycomb structure may be sealed. Alternatively or additionally, the chambers of the honeycomb structure may be evacuated or the pressure inside said chambers may be lowered, wherein the allowed pressure inside the chambers depends on the stability of the honeycomb structure. The evacuated or low-pressure chambers provide a high insulating effect and restrict an expansion of the chambers when the insulatinglayer 16 is heated up. - According to a first concept of the insulating
layer 16 with the plurality of chambers, e.g. arranged in the honeycomb structure, the vacuum insulated chambers are filled with perlite. Standard heating elements, e.g. tubular heating elements, may be connected to the insulatinglayer 16 and used as a support for bearing a thin cavity foil without any coating. Said heating elements are supported by theoven chassis 20. The thin cavity foil forms thecavity wall 14 and may be easily exchanged when it is dirty. The exchangeable cavity foil comprises a pleated buffer space, which is contracted by a shape memory alloy when it is heated up the first time. Thefoodstuff carrier 28 is supported by a holder arranged at theoven door 18. Thefan motor 24 for a hot air function is also supported by theoven chassis 20. - According to a second concept the insulating
layer 16 has the honeycomb structure with low-pressure insulated chambers filled with aerogel. A fixed flexible foil is arranged at the inner side of said insulatinglayer 16. The flexible foil is coated with a heatable lacquer and a coating, which is easy to clean. Thefan motor 24 for the hot air function and thefoodstuff carrier 28 are supported by theoven chassis 20. -
FIG 3 illustrates a schematic sectional side view of a part of the insulatinglayer 16 for thecooking oven 10 according to the preferred embodiment of the present invention in a cold state. - The foil includes the pleated flexible buffer space mentioned above, which contracts during the first heating-up and fixes the foil. The
zigzag pattern 38 represents the internal structure of the insulatinglayer 16 in the cold state.FIG 3 shows the foil with the pleated flexible buffer space before the first heating-up, wherein said foil is not yet contracted. -
FIG 4 illustrates a schematic sectional side view of the part of the insulatinglayer 16 for thecooking oven 10 according to the preferred embodiment of the present invention in a heated state. - The
zigzag pattern 38 represents the internal structure of the insulatinglayer 16 in the heated state. InFIG 4 the foil has contracted and fixes the foil after the first heating-up. The heat contraction may be realized by the one-way memory effect of shape memory alloys. -
FIG 5 illustrates a schematic sectional side view of an example of thecooking oven 10 according to the prior art. Thecooking oven 10 comprises theoven cavity 12, wherein the front opening of saidoven cavity 12 is openable and closable by theoven door 18. Theoven cavity 12 is enclosed by thecavity wall 14. In turn, thecavity wall 14 is enclosed by the insulatinglayer 16. Theoven cavity 12 is arranged within anoven chassis 20. Thefan 22 is arranged in the rear portion of theoven cavity 12. Thefan motor 24 for driving thefan 22 is arranged behind theoven cavity 12. Theexhaust fan 26 is arranged above theoven cavity 12. Thefoodstuff carrier 28 for supportingfoodstuff 30 is inside theoven cavity 12. Thetop heating element 32 is arranged beneath a top side of thecavity wall 14. Thebottom heating element 34 is arranged beneath a bottom top side of thecavity wall 14. Therear heating element 36 is arranged in front of a rear top side of thecavity wall 14. Thefan cover 40 is arranged in the rear portion of theoven cavity 12 and covers thefan 22 and therear heating element 36. - The
cavity wall 14 supports thefoodstuff carrier 28, theheating elements fan 22, thefan motor 24 and thefan cover 40. This requires a sufficient thickness and results in a large mass of saidcavity wall 14. Usually, thecavity wall 14 is made of metal. Thus, thecavity wall 14 stores a lot of thermal energy and increases the energy consumption. Further, the preheating of theoven cavity 12 is delayed by said large mass of thecavity wall 14. Moreover, therigid cavity wall 14 made of metal causes that the cleaning of the inner surface of the cavity wall requires abrasive methods in order to remove dirt from said inner surface. - These problems mentioned above are overcome by the
oven cavity 12 according to the present invention. The present invention reduces the mass of theoven cavity 12 and allows an easy cleaning of thecavity wall 14. Thecavity wall 14 is exchangeable. Thecavity wall 14 is flexible and allows breaking away dirt from its surface. Thecavity wall 14 of the present invention requires less material, reduces the energy consumption of thecooking oven 10 and accelerates the heating-up of theoven cavity 12. -
- 10
- cooking oven
- 12
- oven cavity
- 14
- cavity wall
- 15
- section of the cavity wall
- 16
- insulating layer
- 17
- hole
- 18
- oven door
- 20
- oven chassis
- 22
- heating fan
- 24
- fan motor
- 26
- exhaust fan
- 27
- side grid
- 28
- foodstuff carrier
- 30
- foodstuff
- 32
- top heating element
- 34
- bottom heating element
- 36
- rear heating element
- 37
- oven cavity lamp
- 38
- zigzag pattern
- 40
- fan cover
- 42
- lateral cavity wall
- 44
- bottom cavity wall
- 46
- top cavity wall
- 48
- rear cavity wall
- 50
- bearing structure
- 52
- fixation means
- 54
- corresponding fixation means
Claims (15)
- A cooking oven (10), in particular a domestic cooking oven (10), comprising an oven cavity (12), wherein- the oven cavity (12) comprises a cavity wall (14), wherein an inner space of the oven cavity (12) is enclosed by said cavity wall (14), and- the oven cavity comprises at least one cavity component (22, 27, 28, 32, 34, 36, 37, 40), said cavity component being a heating element, for example an electric heating element (32, 34, 36) or a gas burner, a side grid (27) for bearing a food stuff carrier (28), an oven cavity lamp (37) and/or a fan cover (40) for a heating fan (22), that is arranged inside the oven cavity (12) at the cavity wall (14),characterized in that
the cavity wall (14) comprises a section (15) at which at least one of said cavity component (22, 27, 28, 32, 34, 36, 37, 40) is arranged, wherein at least said section (15) of the cavity wall (14) has insufficient mechanical strength to bear said at least one cavity component (22, 27, 28, 32, 34, 36, 37, 40), so that said section (15) of the cavity wall (14) cannot bear the cavity component (22, 27, 28, 32, 34, 36, 37, 40),
and wherein the cooking oven (10) comprises a bearing structure (50) that is arranged outside of the cavity wall (14), wherein said at least one cavity component (22, 27, 28, 32, 34, 36, 37, 40) that is arranged inside the oven cavity (12) at said section (15) of the cavity wall (14) having insufficient mechanical strength is connected or connectable to said bearing structure (50),
and wherein said section (15) of the cavity wall (14) with insufficient mechanical strength comprises at least one hole (17) for connecting said at least one cavity component (22, 27, 28, 32, 34, 36, 37, 40) that is arranged at said bearing structure (50). - The cooking oven according to claim 1,
characterised in that
at least said section (15) of the cavity wall (14) with insufficient mechanical strength, in particular at least one lateral (42), bottom (44), top (46) or rear (48) cavity wall or all of said lateral (42), bottom (44), top (46) or rear (48) cavity walls of the oven cavity (12), comprises a foil or a woven or non-woven textile material (14) comprising at least one predetermined material, such as an oven temperature-resistant polymer, in particular a temperature-resistant polymer withstanding the temperatures of a pyrolytic oven-cleaning, or a sheet metal foil, in particular wherein said sheet metal foil has a thickness smaller than 0.6 mm, preferably smaller than 0.5 mm. - The cooking oven according to claim 1 or 2,
characterised in that
the bearing structure (50) has a mechanical strength that is adapted to bear said at least one cavity component (22, 27, 28, 32, 34, 36, 37, 40) essentially independent of said section (15) of the cavity wall (14). - The cooking oven according to any one of the claims 1 to 3,
characterised in that
a front opening of the oven cavity (12) is openable and closable by an oven door (18). - The cooking oven according to any one of the claims 1 to 4,
characterised in that
the oven cavity (12) is at least partially enclosed on its outside by an insulating layer (16) that is adapted to effectively reduce the loss of heat from the oven cavity (12) via the cavity wall (14), in particular via said section (15) of the cavity wall with insufficient mechanical strength, in particular via said foil, woven or non-woven textile material (14). - The cooking oven according to claim 5,
characterised in that
the insulating layer (16) includes a structure with a plurality of chambers, wherein said chambers have at least one predetermined shape, and wherein preferably the insulating layer (16) includes a honeycomb structure. - The cooking oven according to claim 6,
characterised in that
the chambers of the insulating layer (16) are filled with loose insulating material, preferably with perlite or aerogel, and/or the chambers of the insulating layer (16) are evacuated or charged with low pressure. - The cooking oven according to any one of the claims 5 to 7,
characterised in that
the insulating layer (16) is arranged in contact with at least a part of the outer surface of the cavity wall (14), in particular wherein the insulating layer (16) supports at least a part of at least one of said section (15) of the cavity wall (14) having insufficient mechanical strength, in particular wherein the insulating layer (16) supports at least a part of said foil, woven or non-woven textile material (14) comprised in said section (15) of the cavity wall (14) . - The cooking oven according to any one of the preceding claims,
characterised in that
the cavity wall (14) is adapted to be exchangeable by a user, in particular wherein the cavity (14) is adapted for manual exchangeable arrangement by a user within at least one of an outer oven chassis (20) or said insulating layer (16), in particular wherein the cavity wall (14) comprises at least one, preferably manually, releasable fixation means (54) corresponding to at least one fixation means (52) of the outer oven chassis (20) or the insulating layer (16). - The cooking oven according to claim 9,
characterised in that
the cavity wall (14) comprises a material capable of changing its shape during a heating step after the arrangement of the cavity wall (14) by the user in order to adapt to a predetermined dimension and/or shape of the oven cavity (12), in particular wherein the cavity wall (14) includes at least one pleated buffer space contractible by a shape memory alloy, when said cavity wall (14) is heated up for the first time. - The cooking oven according to any one of the claims 1 to 10,
characterised in that
the cavity wall (14) is made of at least one of a woven or non-woven textile material (14) and/or of an electrically heatable material, in particular wherein an electrically heatable material is interwoven with said woven textile material (14) or intertwined with said non-woven textile material (14). - The cooking oven according to any one of the claims 1 to 11,
characterised in that
the foil, woven or non-woven textile material (14) is layered by at least one non-sticking coating, preferably on at least the inside of the oven cavity wall (14). - The cooking oven according to any one of the claims 1 to 12,
characterised in that
said foil, woven or non-woven textile material (14) is layered by at least one low emissivity coating, for example tin oxide, preferably on at least the outside of the oven cavity wall (14). - The cooking oven (10) according to any one of the claims 1 to 13,
characterised in that
the cooking oven (10) comprises at least one oven chassis (20) surrounding the cavity wall (14), preferably wherein the insulating layer (16) is arranged between the oven chassis (20) and the cavity wall (14). - The cooking oven (10) according to any one of the claims 1 to 14,
characterised in that
at least one of said bearing structure (50) is formed as part of at least one of the insulating layer (16) and/or the oven chassis (20).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17151119 | 2017-01-12 | ||
PCT/EP2018/050402 WO2018130501A1 (en) | 2017-01-12 | 2018-01-09 | A cooking oven, in particular a domestic cooking oven |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3568643A1 EP3568643A1 (en) | 2019-11-20 |
EP3568643B1 true EP3568643B1 (en) | 2021-07-07 |
Family
ID=57794168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18700195.3A Active EP3568643B1 (en) | 2017-01-12 | 2018-01-09 | A cooking oven, in particular a domestic cooking oven |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3568643B1 (en) |
WO (1) | WO2018130501A1 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3036192A (en) * | 1958-10-15 | 1962-05-22 | Gen Motors Corp | Removable oven liner |
DE102004001686A1 (en) * | 2004-01-12 | 2005-08-04 | BSH Bosch und Siemens Hausgeräte GmbH | Household appliance, in particular cooking appliance |
DE102007018540A1 (en) | 2007-04-19 | 2008-10-30 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Electrically conductive composition for use as transparent or non-transparent conductive coating for resistance heating elements e.g. for heating disks, comprises electrically conductive polymer, carbon nanotubes and baytron |
KR101656571B1 (en) * | 2014-09-24 | 2016-09-09 | 엘지전자 주식회사 | cooking appliance |
-
2018
- 2018-01-09 EP EP18700195.3A patent/EP3568643B1/en active Active
- 2018-01-09 WO PCT/EP2018/050402 patent/WO2018130501A1/en unknown
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
WO2018130501A1 (en) | 2018-07-19 |
EP3568643A1 (en) | 2019-11-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6570135B2 (en) | Kitchen stove for preparing food, and an oven for preparing food | |
CN105765307B (en) | Cooking machine | |
JPH0229940B2 (en) | ||
GB2179440A (en) | Baking and roasting oven | |
JP4158129B2 (en) | Radiant electric heater | |
EP0712478B1 (en) | Outdoor cooking device | |
EP3568643B1 (en) | A cooking oven, in particular a domestic cooking oven | |
US6593550B1 (en) | Energy savings circumferential base for cooking utensils | |
KR20080085417A (en) | Multifunction Cookware & Cookware Set | |
US3410987A (en) | Electric baking oven with a front heating element | |
CN201533778U (en) | Far infrared baking oven structure | |
EP0266134A1 (en) | Apparatus for grilling or browning food | |
JP2004065536A (en) | Cooker | |
US3440401A (en) | Thermal breaking means for front of baking oven | |
CN211609124U (en) | Cooking device and integrated stove with same | |
ES2393392B1 (en) | PIROLÍTICO OVEN, PREFERENTLY DOMESTIC. | |
CN217243760U (en) | Steaming and baking device | |
AP470A (en) | Oven with electrical heating element. | |
JP4035932B2 (en) | Cooking equipment | |
CN2415708Y (en) | Electric oven | |
EP3333492B1 (en) | Cooking oven | |
JPS61147486A (en) | Heater | |
JP2004523877A5 (en) | ||
ES2390172B1 (en) | PIROLÍTICO OVEN, PREFERENTLY DOMESTIC. | |
JP2004523877A (en) | Radiant heater |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20190812 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20200526 |
|
GRAJ | Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted |
Free format text: ORIGINAL CODE: EPIDOSDIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTC | Intention to grant announced (deleted) | ||
INTG | Intention to grant announced |
Effective date: 20201102 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 1408962 Country of ref document: AT Kind code of ref document: T Effective date: 20210715 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602018019661 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG9D |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20210707 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 1408962 Country of ref document: AT Kind code of ref document: T Effective date: 20210707 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210707 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210707 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210707 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210707 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210707 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20211007 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210707 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210707 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20211007 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20211108 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210707 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210707 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210707 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20211008 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602018019661 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210707 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210707 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210707 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210707 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210707 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210707 Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210707 |
|
26N | No opposition filed |
Effective date: 20220408 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210707 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20220131 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20220109 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20220131 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20220131 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20220131 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20220109 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230625 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210707 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20210707 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20240129 Year of fee payment: 7 Ref country code: GB Payment date: 20240123 Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20180109 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20240123 Year of fee payment: 7 Ref country code: FR Payment date: 20240125 Year of fee payment: 7 |