EP1519630A1 - Heizvorrichtung für ein Gargerät oder dergleichen - Google Patents
Heizvorrichtung für ein Gargerät oder dergleichen Download PDFInfo
- Publication number
- EP1519630A1 EP1519630A1 EP04015705A EP04015705A EP1519630A1 EP 1519630 A1 EP1519630 A1 EP 1519630A1 EP 04015705 A EP04015705 A EP 04015705A EP 04015705 A EP04015705 A EP 04015705A EP 1519630 A1 EP1519630 A1 EP 1519630A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heating device
- pieces
- substrate
- dielectric layer
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010411 cooking Methods 0.000 title claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 64
- 239000004020 conductor Substances 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 11
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 239000000919 ceramic Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 7
- 150000002739 metals Chemical class 0.000 claims abstract description 6
- 239000006185 dispersion Substances 0.000 claims abstract 4
- 239000011248 coating agent Substances 0.000 claims abstract 2
- 238000000576 coating method Methods 0.000 claims abstract 2
- 239000004065 semiconductor Substances 0.000 claims abstract 2
- 238000004519 manufacturing process Methods 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 150000004767 nitrides Chemical class 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 150000001247 metal acetylides Chemical class 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 150000003377 silicon compounds Chemical class 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims 1
- 238000010304 firing Methods 0.000 claims 1
- 238000005485 electric heating Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000002241 glass-ceramic Substances 0.000 description 20
- 230000005855 radiation Effects 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 229930091051 Arenine Natural products 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
- H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
- H05B3/748—Resistive heating elements, i.e. heating elements exposed to the air, e.g. coil wire heater
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/1204—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material inorganic material, e.g. non-oxide and non-metallic such as sulfides, nitrides based compounds
- C23C18/1208—Oxides, e.g. ceramics
- C23C18/1216—Metal oxides
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/02—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition
- C23C18/12—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by thermal decomposition characterised by the deposition of inorganic material other than metallic material
- C23C18/125—Process of deposition of the inorganic material
- C23C18/1254—Sol or sol-gel processing
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
Definitions
- the invention relates to a heating device for a cooking appliance or the like according to the preamble of claim 1. Furthermore, the invention relates to a cooking appliance according to the The preamble of claim 20. Also relates to Invention a method of manufacturing a heating device according to the preamble of claim 21.
- Numerous household stoves include a hob or a Heating plate with a heater that generates heat radiation.
- the heater is used, for example, with a ceramic plate, in particular, glass ceramic plate covered, the has a very low thermal expansion coefficient.
- the heat transfer from the heater below the glass ceramic plate is arranged, to a cooking vessel, For example, a pan or a saucepan on the Glass ceramic plate is done via two different Heat transport processes. About a quarter of the energy will be by direct heat radiation from the heater through transfer the glass ceramic plate to the cooking vessel. The rest Energy is generated by thermal radiation from the heater transferred to the bottom of the glass ceramic plate, then takes place a heat conduction from the bottom of the Glass ceramic plate to the top and finally the heat from the top of the glass ceramic plate to the cooking vessel transfer. At full power, a heating element can be used Heater reach a temperature of about 1100 ° C, what an awesome insulation below and to the side of the Heating device requires to avoid unnecessary energy loss avoid.
- the high temperature of the heating element is required to the passage of heat radiation through the glass ceramic plate to guarantee what is only for a relative narrow frequency range is possible.
- the working temperature must be the glass-ceramic plate is less than 550 ° C, which requires a temperature limiting device that the Heating device switches off at too high temperatures.
- the Working temperature is the glass ceramic plate not electric insulating, so that between the heater and the Glass ceramic plate an electrically insulating material and / or an air gap must be arranged. This leads to, the heating device has a thickness of about 3 to 4 cm. In contrast, the glass ceramic plate is common about 4 mm thick.
- Such heaters for glass ceramic hobs have the disadvantage that the heat generated by the heater can not be used optimally. Another disadvantage is that for the heater relatively much space required is.
- the Heating device will accomplish this task by the subject Claim 1 solved.
- the hot plate is for example around a cooking plate, in particular from glass ceramic or Cast iron can be made.
- the heating device according to the invention further has the advantage that the heating plate including heater especially may be flat, since the air gap zwisehen Heating plate and heater and a thick insulation are not required. Because of this construction leaves the hob or oven heat up very quickly and the desired temperatures are quickly adjustable.
- the at least one surface piece essentially made of graphite.
- the at least one surface piece essentially made of graphite.
- the at least one Surface area a sheet resistance between 5 and 200 ohms has per cross-sectional area.
- resistance values can be at usual electrical voltages, the desired Achieve temperature values and heat outputs.
- the Tracks are made of metal. Metals have one relatively low electrical resistance, so that the heat losses are kept low and no heating takes place at those points where this is not desired is.
- the conductor tracks Made of aluminum, gold, silver and / or similar metals are. These metals are particularly insensitive to Corrosion.
- the interconnects a sheet resistance less than 200 milliohms per cross-sectional area exhibit. With these resistance values can be prevent unnecessary energy loss and unwanted heating.
- the dielectric layer of ceramic powder and a sol-gel solution is made.
- This can be a suitable mixture put together to the desired electrical and obtain mechanical properties of the dielectric layer.
- the ceramic powder or more metal oxides, metal nitrides, metal carbides and / or the like are, for example Alumihiumoxid or silicon oxide and aluminum nitride or Silicon nitride suitable.
- the sol-gel solution a or more silicon compounds.
- This is the dielectric Layer inexpensive and easy to produce.
- Corresponding methods for applying the dielectric Layer are in the international applications WO 96/29447 and WO 02/72495.
- the dielectric layer on a substrate is applied.
- This can be special thin dielectric layers with the desired properties sherstellen.
- the dielectric layer is applied to the heating plate. This can be done with low material-technical effort a hob with heater provide.
- the dielectric layer applied directly on the bottom of the hotplate and on the dielectric layer are the heat generating patches and the electrical traces. In this way, a particularly compact Provide a glass ceramic hob with integrated heating device.
- this technology can be used as a heating device for an oven. In this case are one or more walls of the oven as a heating plate trained or equipped with a hot plate. Leave it to provide an oven that has a relative to its outer dimensions has large interior space.
- the heating device a Having a plurality of rectangular patches, which after a predetermined scheme are interconnected.
- the electrical resistance and thus the heat output exactly precalculate, so that a desired temperature distribution is adjustable.
- the heating device a central rectangular patch and at least two lateral has rectangular surface pieces which are parallel to each other and are arranged symmetrically. This can be through the dimensions of the patches their ohmic resistance and thus affect their heat output, so that the temperature distribution easily adjustable.
- the central rectangular Patch and the at least two lateral rectangular ones Surface pieces are dimensioned and arranged such that they cover a circular area as completely as possible. Because the Circular area is usually the preferred form of a cooking plate, can be in this way the highest possible efficiency to adjust.
- Circuit technology can be provided that the lateral Surface pieces parallel to each other and with the central surface piece are connected in series. This will be a symmetric Temperature distribution ensured and it persists the possibility of choosing the widths of patches the radial temperature distribution on the circular surface to influence.
- the Heater a plurality of similar patches arranged so arranged around a circular ring surface as completely as possible. This gives you the opportunity within the annulus a substantially to obtain uniform temperature distribution. Also the Annular area is a preferred geometric section for a hob.
- the similar Patches electrically in series and / or parallel to each other are interconnected, with the row always the same Number of patches has. This also contributes to one uniform temperature distribution at.
- annular surface concentric is arranged with the circular area. This allows one provide a cooktop consisting of circular area and circular area, in which the temperature distribution can be set as desired is.
- the heater a plurality of concentric annular surfaces with each having similar surface pieces. This can be provide a hob that can be controlled area by section and at which any desired temperature distribution is adjustable.
- a cooking appliance is furthermore provided, the at least one hot plate and at least one described above Has heating device. Due to the invention Design of the heater can be the cooking appliance especially compact. This will save space Significantly reduced compared to the prior art. If the cooking appliance is a hotplate, then leave This particular with the heater according to the invention train flat. Is it in the cooking appliance to an oven in which one or more side walls of the invention Have heating device, so can the Make the oven thin-walled. This has the advantage that the Interior of the oven relative to its external dimensions is relatively large. In addition, the Oven due to the heating device according to the invention a relatively high efficiency.
- the substrate is formed by a heating plate.
- the electrically conductive Layer applied directly to the hot plate.
- the substrate can be formed by a hob. Since the hob is heated directly, are relatively low temperatures sufficient to the required To provide cooking performance. At low temperatures the glass ceramic hob acts as an electrical insulator. This has the advantage that an additional electrically insulating Layer can be made thin or at all is not required.
- FIG. 1 is a schematic view of a heater represented according to the invention.
- the heating device comprises a plurality of rectangular patches 10, 12, 14 and electrical Tracks 16, which are essentially in one plane are arranged. Both the patches 10, 12, 14 as well the electrical conductors 16 are on a not shown applied dielectric layer, in turn on the bottom of a hot plate of a glass ceramic hob is applied.
- the patches 10, 12, 14 are made of graphite manufactured and have a relatively high electrical Resistance on. Preferably, the electrical sheet resistance between 5 and 200 ⁇ per unit area.
- About the electrical conductor tracks 16 are the area pieces 10, 12, 14 connected to an electrical power source P, N, wherein P represent the phase connections and N the neutral connections.
- the electrical conductors 16 are made of metal, preferably of aluminum, gold, silver or the like.
- the electrical sheet resistance of the conductor tracks 16 is preferably less than 200 milliohms per unit area. Since the electrical resistance of the patches 10, 12, 14 in Compared to the conductor tracks 16 relatively large is, almost all the electrical energy from the pieces of land 10, 12, 14 converted into heat energy. Because the Surface pieces 10, 12, 14 are particularly flat and immediate abut the dielectric layer of a heating plate is the efficiency is particularly high. Experiments have shown that up to about 80% of the electrical energy is converted into heat energy which are used on the glass ceramic hob can.
- the maximum temperature of the patches 10, 12, 14 is about 450 ° C. This temperature is sufficient because the patches 10, 12, 14 are very close to the glass-ceramic cooking plate are located. In conventional heaters a temperature of about 1100 ° C is required.
- the heater shown in Fig. 1 is for a hob provided that an inner zone 18 and an outer zone 20 includes.
- the inner zone 18 has the shape of a circular area, while the outer zone 20 is in the form of a circular ring surface has, so the two zones 18 and 20 together one form enlarged circular cooking surface.
- the inner zone 18 comprises three surface pieces, namely a central surface piece 10 and two lateral patches 12.
- the central Patch 10 is about twice as wide as the lateral Surface pieces 12 formed.
- the central surface piece 10 and the two lateral patches 12 are parallel to each other arranged. With regard to their dimensions are the Surface pieces 10 and 12 are formed so that they are circular Cover inner zone 18 as completely as possible.
- the both lateral patches 12 are parallel to each other connected.
- the two lateral patches 12 connected in series with the central surface piece 10.
- the electrical conductors 16 are always with the End faces of the patches 10 and 12 are coupled.
- the interconnection and the dimensions of the patches 10 and 12 cause that the heating power and the temperature within the inner zone 18 is substantially evenly distributed.
- the outer zone 20 which is formed as a circular ring surface is, there are nine rectangular outer patches 14, which are arranged approximately evenly. Adjacent patches 14 are electrically coupled via their end faces. through the electrical conductors 16 are the nine outer Surface pieces 14 interconnected so that each three patches 14 in series with each other and these triplets are in turn connected in parallel with each other. By the choice of the dimensions of the patches 14 and their interconnection are the desired heat output and the temperature distribution fixable. The patches 14 are within the outer zone 20 arranged so that they as possible even distribution of heating power and temperature within zone 20.
- the dielectric layer is between the patches 10, 12, 14 and the electrical traces on the one hand and the On the other hand arranged underside of the glass ceramic hot plate.
- the dielectric layer is made of a ceramic powder and a Sol-gel solution produced.
- the ceramic powder comprises for example, alumina and / or silica. alternative
- the ceramic powder may also contain other oxides or nitrides such as B. aluminum nitride or silicon nitride.
- the technology and the processes for the production of dielectric Layer are for example in the international ones Applications WO 02/72495 and WO 96/29447 described.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Thermal Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Dispersion Chemistry (AREA)
- Resistance Heating (AREA)
- Cookers (AREA)
- General Preparation And Processing Of Foods (AREA)
- Surface Heating Bodies (AREA)
- Baking, Grill, Roasting (AREA)
- Electric Stoves And Ranges (AREA)
Abstract
Description
- wenigstens ein Flächenstück zum Erzeugen von Wärme aus elektrischem Strom;
- elektrische Leiterbahnen zur Stromversorgung des Flächenstücks, die nach einem vorbestimmten Schema mit dem wenigstens einen Flächenstück gekoppelt sind; und
- eine dielektrische Schicht, an deren einer Seite die Leiterbahnen und das wenigstens eine Flächenstück angebracht sind und deren andere Seite für den direkten Kontakt mit einer Heizplatte vorgesehen ist.
- FIG. 1
- eine schematische Ansicht einer bevorzugten Ausführungsform der erfindungsgemäßen Heizvorrichtung.
- 10
- zentrales Flächenstück
- 12
- laterales Flächenstück
- 14
- äußeres Flächenstück
- 16
- elektrische Leiterbahn
- 18
- innere Zone
- 20
- äußere Zone
- P
- Phasenanschluss
- N
- Nullleiteranschluss
Claims (22)
- Heizvorrichtung für ein Gargerät oder dergleichen, die Folgendes aufweist:wenigstens ein Flächenstück .(10, 12, 14)zum Erzeugen von Wärme aus elektrischem Strom;elektrische Leiterbahnen (16) zur Stromversorgung des Flächenstücks (10, 12, 14), die nach einem vorbestimmten Schema mit dem wenigstens einen Flächenstück (10, 12, 14) gekoppelt sind; undeine dielektrische Schicht, an deren einer Seite die Leiterbahnen (16) und das wenigstens eine Flächenstück (10, 12, 14) angebracht sind und deren andere Seite für den direkten Kontakt mit einer Heizplatte vorgesehen ist.
- Heizvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das wenigstens eine Flächenstück (10, 12, 14) im Wesentlichen aus Graphit hergestellt ist.
- Heizvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Flächenstück (10, 12, 14) einen Flächenwiderstand zwischen 5 und 200 Ohm pro Querschnittsfläche aufweist.
- Heizvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Leiterbahnen (16) aus Metall hergestellt sind.
- Heizvorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Leiterbahnen (16) aus Aluminium, Gold, Silber und/oder dergleichen Metallen hergestellt sind.
- Heizvorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Leiterbahnen (16) einen Flächenwiderstand von weniger als 200 Milliohm pro Querschnittsfläche aufweisen.
- Heizvorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die dielektrische Schicht aus Keramikpulver und einer Sol-Gel-Lösung hergestellt ist.
- Heizvorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass das Keramikpulver ein oder mehrere Metalloxide, Metallnitride, Metallkarbide und/oder dergleichen umfasst.
- Heizvorrichtung nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass die Sol-Gel-Lösung eine oder mehrere Siliziumverbindungen umfasst.
- Heizvorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die dielektrische Schicht auf einem Substrat aufgebracht ist.
- Heizvorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass die dielektrische Schicht auf der Heizplatte aufgebracht ist.
- Heizvorrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass die Heizvorrichtung eine Mehrzahl rechteckiger Flächenstücke (10, 12, 14) aufweist, die nach einem vorbestimmten Schema miteinander verschaltet sind.
- Heizvorrichtung nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass die Heizvorrichtung ein zentrales rechteckiges Flächenstück (10) und wenigstens zwei laterale rechteckige Flächenstücke (12) aufweist, die zueinander parallel und symmetrisch angeordnet sind.
- Heizvorrichtung nach Anspruch 13, dadurch gekennzeichnet, dass das zentrale rechteckige Flächenstück (10) und die wenigstens zwei lateralen rechteckigen Flächenstücke (12) so bemessen und angeordnet sind, dass sie eine Kreisfläche (18) möglichst vollständig abdecken.
- Heizvorrichtung nach Anspruch 13 oder 14, dadurch gekennzeichnet, dass die lateralen Flächenstücke (12) miteinander parallel und mit dem zentralen Flächenstück (10) in Reihe geschaltet sind.
- Heizvorrichtung nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, dass die Heizvorrichtung eine Mehrzahl gleichartiger Flächenstücke (14) aufweist, die derart angeordnet sind, um eine Kreisringfläche (20) möglichst vollständig abzudecken.
- Heizvorrichtung nach Anspruch 16, dadurch gekennzeichnet, dass die gleichartigen Flächenstücke (14) elektrisch in Reihe und/oder parallel miteinander verschaltet sind, wobei jede parallele Reihe stets die gleiche Anzahl Flächenstücke (14) aufweist.
- Heizvorrichtung nach Anspruch 16 oder 17, dadurch gekennzeichnet, dass die Kreisringfläche (20) konzentrisch mit der Kreisfläche (18) angeordnet ist.
- Heizvorrichtung nach einem der Ansprüche 16 bis 18, dadurch gekennzeichnet, dass die Heizvorrichtung eine Vielzahl konzentrischer Kreisringflächen (20) mit jeweils gleichartigen Flächenstücken (14) aufweist.
- Gargerät mit wenigstens einer Heizplatte und wenigstens einer Heizvorrichtung nach einem der Ansprüche 1 bis 19.
- Verfahren zum Herstellen einer Heizvorrichtung für ein Gargerät oder dergleichen, das folgende Schritte umfasst:Vermischen einer Sol-Gel-Lösung mit bis zu 90 Gew.% der Lösung eines elektrisch leitfähigen Pulvers zu einer stabilen Dispersion, wobei das elektrisch leitfähige Pulver aus einer Gruppe ausgewählt wird, die aus Keramik, Metallen und Halbleitern besteht;Aufbringen der Dispersion auf ein Substrat, um darauf eine Beschichtung herzustellen; undBrennen des beschichteten Substrats bei einer Temperatur, die ausreicht, um sämtliche organische Bestandteile zu entfernen und zumindest stellenweise eine elektrisch leitfähige Schicht auf dem Substrat zu bilden; dadurch gekennzeichnet, dass das Substrat durch eine Heizplatte gebildet wird.
- Verfahren nach Anspruch 21, dadurch gekennzeichnet, dass das Substrat durch ein Kochfeld gebildet wird.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10344860A DE10344860B4 (de) | 2003-09-26 | 2003-09-26 | Heizvorrichtung für ein Gargerät |
| DE10344860 | 2003-09-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1519630A1 true EP1519630A1 (de) | 2005-03-30 |
| EP1519630B1 EP1519630B1 (de) | 2009-12-16 |
Family
ID=34177978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04015705A Expired - Lifetime EP1519630B1 (de) | 2003-09-26 | 2004-07-03 | Heizvorrichtung für ein Gargerät oder dergleichen |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1519630B1 (de) |
| AT (1) | ATE452524T1 (de) |
| DE (2) | DE10344860B4 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210251045A1 (en) * | 2020-02-10 | 2021-08-12 | Lexmark International, Inc. | Modular ceramic heater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5932128A (en) * | 1997-02-26 | 1999-08-03 | White Consolidated Industries, Inc. | Switching control system for heating panel with leakage current cancellation |
| EP1107648A2 (de) * | 1999-11-30 | 2001-06-13 | Aktiebolaget Electrolux | Zirkuläres Schichtheizelement |
| WO2002071803A1 (de) * | 2001-03-06 | 2002-09-12 | Schott Glas | Keramisches kochsystem mit glaskeramikplatte, isolationsschicht und heizelementen |
| US20020145134A1 (en) * | 2001-03-09 | 2002-10-10 | Tim Olding | Sol-gel derived resistive and conductive coating |
| WO2002085072A1 (en) * | 2001-04-17 | 2002-10-24 | Koninklijke Philips Electronics N.V. | Insulating layer for a heating element |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3126989A1 (de) * | 1981-07-08 | 1983-01-27 | E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen | Kochplatte |
| AT408299B (de) * | 1994-03-30 | 2001-10-25 | Electrovac | Heizvorrichtung für elektrische heizplatten, zündeinrichtungen, temperatursensoren od. dgl. |
| DE10209080B4 (de) * | 2002-03-01 | 2014-01-09 | Cvt Gmbh & Co. Kg | Verfahren zur Herstellung eines Widerstandsheizelementes sowie ein Widerstandsheizelement |
-
2003
- 2003-09-26 DE DE10344860A patent/DE10344860B4/de not_active Expired - Fee Related
-
2004
- 2004-07-03 AT AT04015705T patent/ATE452524T1/de not_active IP Right Cessation
- 2004-07-03 EP EP04015705A patent/EP1519630B1/de not_active Expired - Lifetime
- 2004-07-03 DE DE502004010511T patent/DE502004010511D1/de not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5932128A (en) * | 1997-02-26 | 1999-08-03 | White Consolidated Industries, Inc. | Switching control system for heating panel with leakage current cancellation |
| EP1107648A2 (de) * | 1999-11-30 | 2001-06-13 | Aktiebolaget Electrolux | Zirkuläres Schichtheizelement |
| WO2002071803A1 (de) * | 2001-03-06 | 2002-09-12 | Schott Glas | Keramisches kochsystem mit glaskeramikplatte, isolationsschicht und heizelementen |
| US20020145134A1 (en) * | 2001-03-09 | 2002-10-10 | Tim Olding | Sol-gel derived resistive and conductive coating |
| WO2002085072A1 (en) * | 2001-04-17 | 2002-10-24 | Koninklijke Philips Electronics N.V. | Insulating layer for a heating element |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10344860A1 (de) | 2005-04-28 |
| DE502004010511D1 (de) | 2010-01-28 |
| ATE452524T1 (de) | 2010-01-15 |
| EP1519630B1 (de) | 2009-12-16 |
| DE10344860B4 (de) | 2008-06-26 |
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