EP0754918B1 - Kochfläche mit einer Sensoranordung für Kochstellenheizelemente. - Google Patents
Kochfläche mit einer Sensoranordung für Kochstellenheizelemente. Download PDFInfo
- Publication number
- EP0754918B1 EP0754918B1 EP96710007A EP96710007A EP0754918B1 EP 0754918 B1 EP0754918 B1 EP 0754918B1 EP 96710007 A EP96710007 A EP 96710007A EP 96710007 A EP96710007 A EP 96710007A EP 0754918 B1 EP0754918 B1 EP 0754918B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooking
- cooking surface
- surface according
- heating
- monitoring sensor
- 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.)
- Expired - Lifetime
Links
- 238000010411 cooking Methods 0.000 title claims description 27
- 238000010438 heat treatment Methods 0.000 title claims description 24
- 238000012544 monitoring process Methods 0.000 claims description 29
- 239000004020 conductor Substances 0.000 claims description 6
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 5
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 5
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 150000003377 silicon compounds Chemical class 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 239000002241 glass-ceramic Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- NHWNVPNZGGXQQV-UHFFFAOYSA-J [Si+4].[O-]N=O.[O-]N=O.[O-]N=O.[O-]N=O Chemical compound [Si+4].[O-]N=O.[O-]N=O.[O-]N=O.[O-]N=O NHWNVPNZGGXQQV-UHFFFAOYSA-J 0.000 description 2
- 239000012876 carrier material Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- MOFOBJHOKRNACT-UHFFFAOYSA-N nickel silver Chemical compound [Ni].[Ag] MOFOBJHOKRNACT-UHFFFAOYSA-N 0.000 description 1
- 239000010956 nickel silver Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000007740 vapor deposition 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
- H05B3/746—Protection, e.g. overheat cutoff, hot plate indicator
Definitions
- the invention relates to a cooking surface with a sensor arrangement for hotplate heating elements, which are either radiant or mass radiators and are connected to cooktop layers made of metallic or non-metallic Materials of limited layer thickness exist.
- a cooking surface is known from the publication US Pat. No. 4,286,377, which has a temperature sensor having. This is connected to a safety circuit around the mains supply to interrupt when the heating element of the hob is a certain temperature reached from which the heating element or the glass ceramic plate are damaged can.
- the object of the invention is therefore to provide an effective and inexpensive monitoring method against breakage of radiant heaters and cooking surfaces of the above Way to create.
- the arrangement according to the invention for solving this problem is characterized in that that a safety circuit fed by at least one monitoring sensor Radiant heat sources and / or heat conducting heat sources if the radiant heater breaks or switches off the hob.
- a safety circuit fed by at least one monitoring sensor Radiant heat sources and / or heat conducting heat sources if the radiant heater breaks or switches off the hob.
- An advantageous embodiment of the Invention is characterized in that the monitoring sensor from a monitoring conductor is formed, which encloses the heat source to be monitored. Further advantageous embodiments of the invention are contained in the subclaims. An embodiment according to the invention is below with reference to the drawing described in more detail.
- a heat-conducting plate with a monitoring sensor can be seen, in detail from a heat-conducting carrier 1, a heating medium 2, from electrical Contacts 3 for the heating medium 2, from the monitoring conductor 4, and the voltage supply contacts 7 for the surveillance conductor track 4.
- the associated 2 shows a cooking surface, for example glass ceramic cooking surface or glass surface, which is equipped with four individually monitored hotplates according to Fig.1.
- the cooking surface 6 has a monitoring path 5, which encloses all hotplates and breaks in the vicinity of the hotplate or in the glass ceramic cooktop.
- the Heat sources at risk of breakage for example heat-conducting layer heat sources, are through the application of at least one monitoring conductor track 4, 5 to voltage, overheating, Fatigue breaks monitored.
- the monitoring path 4, 5 is included a safety circuit connected to the radiant heat sources and / or heat conducting heat sources switches off in the event of an accident. This usually happens because the monitoring path 4, 5 is connected to the control circuit of a relay circuit, which is connected in series to the respective radiator and switches off all poles, if an interruption of the monitoring path 4, 5 occurs in the monitoring circuit.
- the relay for controlling the safety circuit can use a safety extra-low voltage be connected by a separately feeding transformer.
- the requirements for the surveillance track are that it is sensibly protective is arranged around the heat sources, consists of sufficiently thin material, for example Gold, nickel silver, graphite, and by vapor deposition, sputtering or printing is applied.
- the heating source can be assumed to be safe that the monitoring sensor 4, 5 also interrupts and thus triggers the safety circuit.
- Both the monitoring sensor or sensors as well as the heat source structure can be designed in different ways his.
- the structural shape of the heat source to be monitored can be changed, be applied in spiral orbits or in concentric orbits. It makes sense, to execute the monitoring sensor so that it conforms to the respective heat source structure largely approximated.
- An inner and an outer monitoring sensor can be arranged be able to switch off different heating circuits if they break, whereby at least one of these several monitoring sensors 4, 5 for pot detection purposes is also usable. According to FIG.
- the arrangement also provides that the monitoring sensor of each individual hotplate of a cooktop is assigned and the cooking surface itself also protects against breakage.
- the hotplate is designed as a heat-conducting plate, its mass-determining electrical non-conductive layer of a silicon compound, for example silicon nitrite or silicon carbide, the monitoring sensor must have at least one closed Close surrounding of the heating surface.
- thermal plates of the aforementioned type exist in particular in that with silicon nitride or silicon carbide substrates equipped heat conducting sources compared to previously known heating sources a very have a short comparison cooking time. Even the overall efficiency of such special Thermal plates are above 80% and thus significantly higher than previously known Heat source arrangements. The one that may occur at higher energies To master the likelihood of a heat break, it is necessary to security given by the arrangement according to the invention by means of a monitoring sensor to provide.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Electric Stoves And Ranges (AREA)
- Resistance Heating (AREA)
Description
- Fig. 1
- einen Überwachungssensor auf einer Wärmeleitheizquelle,
- Fig. 2
- eine Kochfeldanordnung mit Überwachungssensoren.
Claims (10)
- Kochfläche mit einer Sensoranordnung für Kochstellenheizelemente, die entweder Strahlungsheizkörper oder Masseheizkörper sind und mit Kochfeldschichten in Verbindung stehen, die aus metallischen oder nichtmetallischen Materialien begrenzter Schichtdicke bestehen, dadurch gekennzeichnet, daß eine von mindestens einem Überwachungssensor (4, 5) gespeiste Sicherheitsschaltung Strahlungsheizquellen und/oder Wärmeleitheizquellen bei Bruch des Strahlungsheizkörpers oder der Kochfläche (6) abschaltet.
- Kochfläche nach Anspruch 1, dadurch gekennzeichnet, daß der Überwachungssensor (4, 5) aus einer Überwachungsleiterbahn gebildet ist, die die zu überwachende Heizquelle umschließt.
- Kochfläche nach Anspruch 1, 2, dadurch gekennzeichnet, daß die zu überwachende Heizquelle ihrer Strukturform nach mäanderartig ist.
- Kochfläche nach Anspruch 1, 2, dadurch gekennzeichnet, daß die zu überwachende Heizquelle ihrer Form nach in konzentrischen Kreisbahnen oder Spiralkreisbahnen strukturiert ist, wobei der mindestens eine Überwachungssensor (4, 5) sich der jeweiligen Heizquellenstruktur annähert.
- Kochfläche nach Anspruch 1, dadurch gekennzeichnet, daß für geometrisch und damit leistungsstärkere größere Heizflächen ein innerer und ein äußerer Überwachungssensor angeordnet ist.
- Kochfläche nach Anspruch 1, 5, dadurch gekennzeichnet, daß der Überwachungssensor (4, 5) für Topferkennungszwecke nutzbar ist.
- Kochfläche nach Anspruch 1, dadurch gekennzeichnet, daß der Überwachungssensor (4, 5) jeder einzelnen Kochstelle einer Kochfläche und dieser selbst zuordenbar ist.
- Kochfläche nach Anspruch 1, dadurch gekennzeichnet, daß die Kochstelle eine Wärmeleitplatte ist, deren massebestimmende elektrische nichtleitende Schicht eine Siliziumverbindung ist.
- Kochfläche nach Anspruch 1, 9, dadurch gekennzeichnet, daß die Kochstelle eine Wärmeleitplatte ist, deren massebestimmende elektrisch nichtleitende Schicht aus Silizium-Nitrit besteht.
- Kochfläche nach Anspruch 1, dadurch gekennzeichnet, daß die Kochstelle eine Wärmeleitplatte ist, deren massebestimmende elektrisch nichtleitende Schicht aus Silizium-Karbit besteht.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29511740U DE29511740U1 (de) | 1995-07-20 | 1995-07-20 | Sensoranordnung für Kochstellenheizelemente |
DE29511740U | 1995-07-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0754918A1 EP0754918A1 (de) | 1997-01-22 |
EP0754918B1 true EP0754918B1 (de) | 2000-09-20 |
Family
ID=8010784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96710007A Expired - Lifetime EP0754918B1 (de) | 1995-07-20 | 1996-07-03 | Kochfläche mit einer Sensoranordung für Kochstellenheizelemente. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0754918B1 (de) |
DE (2) | DE29511740U1 (de) |
ES (1) | ES2151648T3 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19629155C2 (de) * | 1996-07-19 | 2001-06-07 | Ggt Ges Fuer Gerontotechnik Mb | Verfahren und Vorrichtung zur Sicherheitsabschaltung elektrischer Kochgeräte |
DE19820108C2 (de) * | 1998-05-06 | 2001-03-15 | Schott Glas | Anordnung eines wärmeleitenden keramischen Trägers mit einem Heizkörper als Kochzone in einer Aussparung einer Kochfläche |
DE19853388A1 (de) * | 1998-11-19 | 2000-05-25 | Ego Elektro Geraetebau Gmbh | Elektrische Heizeinrichtung |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4286377A (en) * | 1978-07-03 | 1981-09-01 | General Electric Company | Method of manufacture for a resistance heater and temperature sensor |
DE3105065A1 (de) * | 1981-02-12 | 1982-08-19 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Kochplatte aus glaskeramik |
DE3345991A1 (de) * | 1983-12-20 | 1985-06-27 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | Anordnung zur leistungsregelung elektrischer kochplatten, vorzugsweise glaskeramik-kochplatten |
FR2609533B1 (fr) * | 1987-01-13 | 1990-05-25 | Cableco Sa | Plan de cuisson electrique a chauffage a induction |
-
1995
- 1995-07-20 DE DE29511740U patent/DE29511740U1/de not_active Expired - Lifetime
-
1996
- 1996-07-03 DE DE59605907T patent/DE59605907D1/de not_active Expired - Fee Related
- 1996-07-03 ES ES96710007T patent/ES2151648T3/es not_active Expired - Lifetime
- 1996-07-03 EP EP96710007A patent/EP0754918B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE59605907D1 (de) | 2000-10-26 |
ES2151648T3 (es) | 2001-01-01 |
EP0754918A1 (de) | 1997-01-22 |
DE29511740U1 (de) | 1995-10-05 |
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