EP0490289A1 - Radiateur électrique notamment radiateur à rayonnement - Google Patents
Radiateur électrique notamment radiateur à rayonnement Download PDFInfo
- Publication number
- EP0490289A1 EP0490289A1 EP91120964A EP91120964A EP0490289A1 EP 0490289 A1 EP0490289 A1 EP 0490289A1 EP 91120964 A EP91120964 A EP 91120964A EP 91120964 A EP91120964 A EP 91120964A EP 0490289 A1 EP0490289 A1 EP 0490289A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- insulating
- boundary insulation
- radiator according
- edge
- insulation
- 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
- 239000011810 insulating material Substances 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 238000009413 insulation Methods 0.000 claims description 47
- 238000010438 heat treatment Methods 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 13
- 229910052902 vermiculite Inorganic materials 0.000 claims description 11
- 239000010455 vermiculite Substances 0.000 claims description 11
- 235000019354 vermiculite Nutrition 0.000 claims description 11
- 230000005855 radiation Effects 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 229910021485 fumed silica Inorganic materials 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 3
- 239000000654 additive Substances 0.000 claims 1
- 238000005452 bending Methods 0.000 claims 1
- 239000000945 filler Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 27
- 239000002241 glass-ceramic Substances 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 230000006698 induction Effects 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000013590 bulk material Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000013517 stratification Methods 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
-
- 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
- H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
- H05B2213/05—Heating plates with pan detection means
Definitions
- the invention relates to an electric radiator, in particular a radiant heater, with thermal lateral boundary insulation.
- the unpublished EP 0 442 275 A2 (corresponding to USA patent application 650 489 of February 5, 1991) discloses a radiant heater, in the outer edge of which a sensor coil of a pot detection system is inserted into a groove that is open to the outside.
- the object of the invention is to provide an electric radiator, the lateral limitation is easy to manufacture with good strength and thermal insulation.
- An induction coil running around the radiant heater is embedded in the edge. This can happen, for example, inside a U-shaped edge cross section, which is then filled with other insulating material behind it, or the coil can also be pressed in. It is thus possible to insulate this coil against the main heat influence, but close to the glass ceramic plate, with simultaneous electrical insulation.
- Their supply lines and the other heating element supply lines can also be led out in the region of cutouts of the edge, which can be pressed directly into the molded body.
- a terminal block can also extend directly into the area of an edge cutout. The fixing can take place by snap-in or bending-in connection as well as by clawing out a punched-out tab of a carrier shell.
- the lateral boundary insulation that is to say the insulation of the edge area of the radiator, which is usually ring-shaped, can be divided into several layers, which are staggered according to the desired properties.
- the mechanically more stressed sides for example the inside facing the radiant heating chamber, could consist of a mechanically stronger layer, and a somewhat firmer layer could also be provided on the outer circumference, so that the ring can be easily handled and also assembled.
- a mechanically less strong, but thermally well insulating layer could be applied inside.
- the individual layers could also have a reflective coating or have interposed reflective foils.
- the coating can be metallic and / or by other reflection means happen, for example metal oxides, which have a reflective effect in the mainly existing wavelength range.
- the edge could, for example, be a vermiculite shaped body with a U-shaped cross section, which is closed on the upper side facing a glass ceramic plate and with its two legs rests on the rest of the insulation of the radiant heater.
- the interior can be an air space or can be lined with a well-insulating bulk material or the like. It is also possible to produce from pipe sections of sandwich-like design. Horizontal layer formation can be provided if it is primarily a matter of mechanically solidifying the layer lying towards the radiation side.
- the rest of the insulation can be made largely flat and thus relatively inexpensive and with good thermal insulation properties.
- the arrangement of the layers makes it possible to influence the thermal profile.
- a bridge between the layers for example the U-leg of a profile, can be arranged near the glass ceramic plate, so that the heat transferred there can preferably be dissipated through the glass ceramic plate.
- the dimensional stability and dimensional stability make it possible to attach the edge in the carrier shell without special adaptation measures. It can also hold the rest of the radiator insulation in the carrier shell. Production with smooth transitions between the insulating layers is also possible. For example, by correspondingly blowing or foaming the insulating material in the form, a structure similar to an integral foam can be achieved in which the The surface is denser and the densities decrease towards the center and thus the insulation capacity increases.
- the insulating body can be partially or completely provided with an outer layer made of mechanically stronger material, for example vermiculite, which may even replace the otherwise customary sheet metal carrier shell and thus a self-supporting, relatively wear-resistant shell which also forms the base for connections, temperature sensors, etc. be.
- This can be a separate molded body into which other insulating materials are pressed, but the pressing can also take place at the same time as the rest of the insulating material, with the desired penetrations or intermixing of the insulating materials taking place in the interfaces between the insulating materials. This creates a largely seamless transition between these materials, which ensures good interlocking of the layers.
- insulating materials in particular vermiculite with pyrogenic silica airgel, which can both be pressed dry and form a thermally well insulating but mechanically stronger material than the airgel alone.
- a carrier layer which carries the heating resistors, could then also be formed from this material, preferably in one piece with an edge layer. They can be attached to it in any manner, a method which is derived from EP 0 355 388 A1 being particularly preferred. This document is referred to for the details.
- Fig. 1 shows an electric radiant heater 11, which is attached under a glass ceramic hotplate 12 and is pressed with a boundary insulation 13 on the underside.
- a carrier shell 14 Arranged in a carrier shell 14 is a lower insulating layer 15, which is formed by pyrogenic silica airgel poured into the sheet metal carrier shell 14 and then compressed. With good temperature resistance, this insulating material is very well insulating, but mechanical not very firm.
- another insulating layer 16 made of a mechanically stronger insulating material, for example made of a fiber material, such as is sold under the trade name "Fiberfrax", or another ceramic fiber material, which is pressed with binders, is arranged.
- Heating coils 17 made of electrical resistance material are embedded in this layer 16 with their lower vertices, and at a clear distance from the glass ceramic plate 12 on which the cooking vessels can be placed.
- the radiator is also suitable for other heating purposes, for example for radiant heating of ovens or for heating other objects, for example metal hot plates.
- the radiation space 18 formed above the heating resistors 17 is surrounded by the boundary insulation 13. It forms an edge running around the heating element, which protrudes somewhat beyond the edge 19 of the sheet metal carrier shell and thus makes contact with the glass ceramic plate.
- the boundary insulation 13 has a horizontal stratification. It consists of an annular shaped body, which has a firmer layer 22 of compressed vermiculite on its upper side facing the radiation side 25, that is to say, for example, on the glass ceramic plate, while the remaining part 26 of the shaped body, which takes up the largest part of the ring height, consists of a mixture of vermiculite, fumed silica airgel and reinforcing fibers. Pressed into it, in the area of the interface between the layers 22 and 26, is a sensor coil 27 made of an oxidation-insulated aluminum wire, which runs around the edge and is therefore relatively close to the glass ceramic plate, but is thermally shielded. It is the sensor of a pot detection device, which changes the induction recognizes this in the coil 27 by an attached or pushed pot and switches on the radiant heater.
- the boundary insulation can be produced by first introducing vermiculite with the appropriate binder into a trough-shaped recess, then placing the coil on top and finally inserting the material forming part 26 and compressing the whole.
- a sheet metal tab 30 is punched out of the material of the edge 19 of the carrier shell 14 and bent slightly inward, which yields resiliently when the ring is inserted, but digs barb-like into the material of the boundary insulation with its free edge directed downward and thus securely holds it in the carrier shell (see Fig. 10).
- the boundary insulation 13 in FIG. 2 consists of a molded body made of pressed vermiculite (expanded mica). This is pressed in granular form, mixed with a binder, as already described in DE-U-87 02 714, to which reference is made for this purpose.
- the cross section of the molded body is reversely U-shaped, so that the boundary insulation 13 has an inner leg 20, an outer leg 21, an upper connecting section 22 and an inner annular recess 23 which is elongated in the vertical direction.
- the sensor coil 27 is arranged in its upper part. There, too, it is close to the glass ceramic plate.
- the remaining part of the ring recess 23 is in turn filled with insulating material.
- the sensor coil 27 consists of a spiral-shaped winding made of flat band-shaped oxide-insulated line material, similar to a tightly tensioned clock spring.
- the conductor strips are vertical. This type of winding allows a high density of the coil body with low losses.
- the walls, in particular in the interior of the ring recess 23, can be coated with a reflective coating, for example by metal vapor deposition or by applying reflective metal oxides, so that radiation heat transfer through the annular space 23 is impeded.
- the ring recess 23 in the boundary insulation 13 is filled with an insulating material filling 24, the material of which differs from that of the U-shaped molded body.
- insulating layer 15 It can in particular be the same material as the lower insulating layer 15 or an even lighter and better insulating material can be used, which is filled into the ring recess and, if necessary, is pressed in a little there to make the ring easier to handle.
- a cord made of ceramic fibers is used. The insulation is much better than would be the case with a solid molded body. The only place where the molded body passes from the inside to the outside is in the area of the connecting section 22, where, however, the heat can easily be dissipated through the glass ceramic plate 12.
- the shaped body forming the boundary insulation is a stable shaped body which can be produced with sharp boundary surfaces, but which contains a fiber 53 on the upper inside in order to form an optical boundary surface secured against nicks.
- the annular boundary insulation also secures the insulating layers 15, 16 and presses them into the carrier shell 14.
- the radiant heater is also ideal for use with quartz-encapsulated high-temperature radiant heaters, such as halogen incandescent lamps.
- the single-layer insulation version can also be selected for this purpose, in which the upper insulating layer 16 is dispensed with.
- the heating coils 17 and the boundary insulation 13 are arranged there directly on the insulating layer 15, they lie on the surface thereof and can be fastened there, for example by metal clips.
- FIG. 3 shows an edge design with a shaped body as in FIG. 2, but with a round wire coil 27 and a pressed-in insulation 24 made of bulk material filling the recess 23.
- the insulating layer 16 has an elevated edge region 28, which is approximately at the height of the top of the heating coils 17. As a result, the insulating layer 16 can be produced more easily because it can be placed flat on a drying plate with the pressed-in heating coils, without fear of deformation.
- the connecting lines of the heating resistors 17 can also be led out in the interface 29 between the insulating layer 16 and the boundary insulation 13, as shown in FIG. 4.
- the U cross-section of the boundary insulation corresponding to FIG. 3 is unequal, in that the inner leg 20 is longer than the outer one. Accordingly, the inner leg 20 has pressed-in recesses 31 on its underside, through which the connecting lines 32 can reach.
- Fig. 5 shows an annular edge 26 made of insulating material without an internal recess.
- a flat ring 22 made of mechanically stronger insulating material, for example vermiculite, in which a flat ring-shaped sensor coil made of wires arranged next to one another is embedded. It not only ideally protects the coil, but also the upper surface of the edge 26.
- a similar ring 22 is provided with a recess 23 in which a common coil lies on the surface of the rim 26, i.e. is embedded or enclosed in the boundary surface of edge 26 and ring 22.
- Fig. 7 shows an embodiment with a boundary insulation corresponding to FIGS. 3 and 4.
- a snap connection 33 is provided between the shell edge 19 and the boundary insulation 13, which consists of a resilient tab 30 which projects obliquely downwards and inwards and which presses in the boundary insulation 13 is pushed back and then falls into grooves 34 formed on the outer circumference of the leg 21, which extend only over part of the height. (For details see Fig. 9)
- FIG. 8 shows the embodiment according to FIG. 7 at the point at which the connecting lines for the heating coils 17 and the sensor coil 27 are led to the outside. It can be seen that there the two legs 20, 21 of the molded body have cutouts 35 through which the connecting lines 32 of the heating coils 17 and the sensor coil connecting lines 36 project outwards. They lead to a connection body 37 which has tabs 38 for the feed lines.
- the connector body is attached to the carrier shell, but can also engage in a recess 35 in the boundary insulation 13. Any temperature sensors of temperature limiting and regulating devices reaching through the radiation space 18 can also be passed through cutouts in the limiting insulation.
- FIG. 11 shows the top view of a two-circuit heating element, in which two circular heating zones, which may be separately controllable or regulatable, are combined to form an oval or slot-shaped plate.
- the two zones 40, 41 are separated from one another by a central section 43 which, like the oval outer edge 13, can be constructed in multiple layers in the manner of the boundary insulation described above.
- the double-concave central section 43 can have a single or double U-shaped profile, in which sensors other than pot detection sensors may also be incorporated, for example temperature sensors or the like.
- the sensor coil 27 for example in the embodiment according to FIGS. 2 to 4, can already be molded in during the manufacture of the shaped body.
- the coil can be wound on the front edge of a mandrel, which is introduced into a trough-shaped shape and forms the recess 23. After pressing, it is pulled out and leaves the coil in the recess.
- This preferred manufacturing method creates a particularly good embedding of the sensor coil 27 just below the glass ceramic plate.
- FIG. 12 shows a section through a two-circuit heating element 11 corresponding to FIG. 11. It can be seen there that the central web 43 can also carry an arm of a sensor coil 27, which is designed here according to FIG. 2. With a concentric arrangement of the heating zones 40, 41, only the edge forming the boundary insulation 13 of the inner heating zone can be provided with the sensor coil 27.
- the sensor coil is connected to a pot detection system that works with an induction measuring principle. If the damping of the induction coil changes when the pot is placed on, the radiant heater is switched on. Since the coil inductance values change with temperature changes, the best possible temperature shielding of the coil is important, also for the selection of an inexpensive coil material. Good pot detection systems, e.g. according to EP 0 442 275 A2 (corresponding to USA s.n. 650 489) a compensation for the temperature-related drift of the coil values, but the good thermal shielding improves the function.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Resistance Heating (AREA)
- Electric Stoves And Ranges (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Cookers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4039501 | 1990-12-11 | ||
DE4039501A DE4039501A1 (de) | 1990-12-11 | 1990-12-11 | Elektrischer heizkoerper, insbesondere strahlheizkoerper |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0490289A1 true EP0490289A1 (fr) | 1992-06-17 |
EP0490289B1 EP0490289B1 (fr) | 1995-04-12 |
Family
ID=6420060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91120964A Expired - Lifetime EP0490289B1 (fr) | 1990-12-11 | 1991-12-06 | Radiateur électrique notamment radiateur à rayonnement |
Country Status (7)
Country | Link |
---|---|
US (1) | US5223697A (fr) |
EP (1) | EP0490289B1 (fr) |
JP (1) | JPH05326121A (fr) |
AT (1) | ATE121256T1 (fr) |
DE (3) | DE4039501A1 (fr) |
ES (1) | ES2071196T3 (fr) |
YU (1) | YU190391A (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0693863A1 (fr) * | 1994-07-21 | 1996-01-24 | Wacker-Chemie GmbH | Procédé pour fixer une paroi en forme d'anneau dans un radiateur |
WO1998051128A1 (fr) * | 1997-05-07 | 1998-11-12 | Compagnie Europeenne Pour L'equipment Menager - Cepem | Foyer de cuisson a detection de la presence d'un recipient |
EP1379105A2 (fr) * | 1996-02-05 | 2004-01-07 | E.G.O. Elektro-Gerätebau GmbH | Capteur pour la détection d'un récipient de cuisson |
EP3518618B1 (fr) | 2009-07-29 | 2020-09-16 | BSH Hausgeräte GmbH | Plaque de cuisson pourvue d'au moins deux zones chauffantes |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5397873A (en) * | 1993-08-23 | 1995-03-14 | Emerson Electric Co. | Electric hot plate with direct contact P.T.C. sensor |
US5658478A (en) * | 1994-05-03 | 1997-08-19 | Roeschel; Hans E. | Automatic heating assembly with selective heating |
US5553189A (en) * | 1994-10-18 | 1996-09-03 | Shell Oil Company | Radiant plate heater for treatment of contaminated surfaces |
DE19500351A1 (de) * | 1995-01-07 | 1996-07-11 | Philips Patentverwaltung | Kochgerät |
DE19527826C2 (de) * | 1995-07-29 | 2002-05-08 | Ego Elektro Geraetebau Gmbh | Strahlungs-Kochstelleneinheit |
DE19527823A1 (de) * | 1995-07-29 | 1997-01-30 | Ego Elektro Blanc & Fischer | Kochmuldeneinheit mit mehreren unterhalb einer Platte angeordneten Kochstellen |
DE19527824A1 (de) * | 1995-07-29 | 1997-01-30 | Ego Elektro Blanc & Fischer | Kochmuldeneinheit mit mehreren unterhalb einer Platte angeordneten Kochstellen |
GB2320573A (en) * | 1996-12-19 | 1998-06-24 | Ceramaspeed Ltd | Electric heater and sensor |
GB2320626B (en) * | 1996-12-19 | 2000-10-18 | Ceramaspeed Ltd | Cooking utensil detection method |
DE29702590U1 (de) * | 1997-02-14 | 1997-04-03 | E.G.O. Elektro-Gerätebau Gmbh, 75038 Oberderdingen | Wärmeisolierender Abstandshalter für Strahlungsheizkörper |
DE19806945A1 (de) * | 1998-02-19 | 1999-09-09 | Ego Elektro Geraetebau Gmbh | Elektrischer Strahlungsheizkörper |
GB2340714A (en) * | 1998-08-14 | 2000-02-23 | Ceramaspeed Ltd | Securing insulation in support dish |
GB0314929D0 (en) * | 2003-06-26 | 2003-07-30 | Ceramaspeed Ltd | Electric heater incorporating a device for detecting a cooking utensil |
GB2407747A (en) * | 2003-10-31 | 2005-05-04 | Ceramaspeed Ltd | Wall for an electric heater and process for the production thereof |
DE202008005112U1 (de) * | 2008-04-12 | 2009-05-20 | Porextherm-Dämmstoffe Gmbh | Wärmedämmformkörper und damit ausgestattete Abgasreinigungsanlage |
GB0811980D0 (en) * | 2008-07-07 | 2008-07-30 | Ceramaspeed Ltd | Radiant electric heater |
ES1135492Y (es) * | 2014-12-11 | 2015-04-13 | Eika S Coop | Foco radiante adaptado a una encimera de cocción |
US20210041108A1 (en) * | 2019-08-09 | 2021-02-11 | Eidon, Llc | Apparatuses for radiant heating |
GB2593468B (en) * | 2020-03-23 | 2022-04-13 | Equip Line Ltd | An apparatus for heating a pot of food or beverage |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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DE3129939A1 (de) * | 1981-07-29 | 1983-03-24 | Vjačeslav N. Bukarev | Verfahren zum nitrieren von magnetleiterteilen aus armco-eisen |
EP0211484A1 (fr) * | 1985-07-10 | 1987-02-25 | Redring Electric Limited | Plaques de chauffage électriques |
GB2197169A (en) * | 1986-10-25 | 1988-05-11 | Micropore International Ltd | Radiant heaters |
DE3711589A1 (de) * | 1987-04-06 | 1988-10-27 | Kueppersbusch | Kochgeraet |
DE3735179A1 (de) * | 1987-10-17 | 1989-05-03 | Ego Elektro Blanc & Fischer | Strahlungs-heizeinheit sowie verfahren zur herstellung einer strahlungs-heizeinheit |
EP0442275A2 (fr) * | 1990-02-10 | 1991-08-21 | E.G.O. Elektro-Geräte Blanc und Fischer GmbH & Co. KG | Dispositif ou détection d'un récipient placé dans une zone de chauffage d'un appareil de cuisson ou de chauffage |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
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AT238331B (de) * | 1963-03-26 | 1965-02-10 | Burger Eisenwerke Ag | Kochstelle mit vom Kochgefäß betätigter Schalteinrichtung |
DE7132382U (de) * | 1971-08-25 | 1972-04-27 | Esslinger H | Selbstabschaltende Kochplatte |
GB1433478A (en) * | 1972-08-05 | 1976-04-28 | Mcwilliams J A | Electrical heating apparatus |
DE2760339C3 (de) * | 1975-11-14 | 1994-04-14 | Ego Austria Elektrogeraete | Elektrischer Strahlungsheizkörper für Glaskeramikkochplatten |
DE2551137C2 (de) * | 1975-11-14 | 1986-04-24 | E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen | Elektrischer Strahlungsheizkörper für Glaskeramikkochplatten |
SE8000898L (sv) * | 1979-02-07 | 1980-08-08 | Micropore International Ltd | Anordning vid sleta spishellar |
DE3008505C2 (de) * | 1980-03-05 | 1983-08-25 | Grünzweig + Hartmann und Glasfaser AG, 6700 Ludwigshafen | Vorrichtung zur Wärmedämmung einer Wärmequelle |
US4334135A (en) * | 1980-12-22 | 1982-06-08 | General Electric Company | Utensil location sensor for induction surface units |
DE3129239A1 (de) * | 1981-07-24 | 1983-02-10 | E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen | Elektrischer heizkoerper fuer die beheizung einer platte und verfahren zu seiner herstellung |
DE3229380C3 (de) * | 1981-08-08 | 1995-06-29 | Micropore International Ltd | Strahlungsheizer für Elektroherde mit Glaskeramikdeckplatten |
US4394565A (en) * | 1981-11-23 | 1983-07-19 | General Electric Company | Power disconnect assembly for electric heating elements |
DE3219392A1 (de) * | 1982-05-24 | 1983-12-01 | Gruenzweig Hartmann Glasfaser | Waermedaemmplatte fuer die lagerung einer elektrischen heizwendel, sowie verfahren zu ihrer herstellung |
EP0176027B1 (fr) * | 1984-09-22 | 1989-02-01 | E.G.O. Elektro-Geräte Blanc u. Fischer | Elément chauffant à rayons pour appareils de cuisson |
US4577181A (en) * | 1985-03-04 | 1986-03-18 | Bernard Lipscher | Alarm system for electric range |
EP0234373A3 (fr) * | 1986-02-26 | 1988-03-02 | E.G.O. Elektro-Geräte Blanc u. Fischer | Unité de cuisson avec élément chauffant radiant |
DE3622415A1 (de) * | 1986-07-03 | 1988-01-07 | Ego Elektro Blanc & Fischer | Strahlheizkoerper |
DE3703768A1 (de) * | 1987-02-07 | 1988-08-18 | Fissler Gmbh | Vorrichtung zum erfassen der temperatur einer mittels heizwicklungen oder halogenlampen aufgeheizten glaskeramikplatte |
DE8702714U1 (de) * | 1987-02-21 | 1987-04-16 | E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen | Strahlheizkörper für Kochgeräte |
DE3804170A1 (de) * | 1987-04-06 | 1989-08-24 | Kueppersbusch | Kochgeraet |
DD264208A1 (de) * | 1987-09-15 | 1989-01-25 | Cottbus Ing Hochschule | Elektrisch isolierender moertel |
KR900008588B1 (ko) * | 1988-12-13 | 1990-11-26 | 삼성전자 주식회사 | 경량성 단열 반사재 및 그 제조방법 |
DE4005128A1 (de) * | 1989-02-22 | 1990-08-23 | Anton Trum Gmbh & Co Kg | Feuerhemmende abdeckung einer revisionsoeffnung |
GB8926289D0 (en) * | 1989-11-21 | 1990-01-10 | Ceramaspeed Ltd | Radiant electric heaters |
-
1990
- 1990-12-11 DE DE4039501A patent/DE4039501A1/de not_active Withdrawn
-
1991
- 1991-02-15 DE DE9101759U patent/DE9101759U1/de not_active Expired - Lifetime
- 1991-12-06 ES ES91120964T patent/ES2071196T3/es not_active Expired - Lifetime
- 1991-12-06 EP EP91120964A patent/EP0490289B1/fr not_active Expired - Lifetime
- 1991-12-06 DE DE59105171T patent/DE59105171D1/de not_active Expired - Fee Related
- 1991-12-06 AT AT91120964T patent/ATE121256T1/de not_active IP Right Cessation
- 1991-12-06 US US07/803,204 patent/US5223697A/en not_active Expired - Fee Related
- 1991-12-09 YU YU190391A patent/YU190391A/sh unknown
- 1991-12-10 JP JP3326116A patent/JPH05326121A/ja not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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DE3129939A1 (de) * | 1981-07-29 | 1983-03-24 | Vjačeslav N. Bukarev | Verfahren zum nitrieren von magnetleiterteilen aus armco-eisen |
EP0211484A1 (fr) * | 1985-07-10 | 1987-02-25 | Redring Electric Limited | Plaques de chauffage électriques |
GB2197169A (en) * | 1986-10-25 | 1988-05-11 | Micropore International Ltd | Radiant heaters |
DE3711589A1 (de) * | 1987-04-06 | 1988-10-27 | Kueppersbusch | Kochgeraet |
DE3735179A1 (de) * | 1987-10-17 | 1989-05-03 | Ego Elektro Blanc & Fischer | Strahlungs-heizeinheit sowie verfahren zur herstellung einer strahlungs-heizeinheit |
EP0442275A2 (fr) * | 1990-02-10 | 1991-08-21 | E.G.O. Elektro-Geräte Blanc und Fischer GmbH & Co. KG | Dispositif ou détection d'un récipient placé dans une zone de chauffage d'un appareil de cuisson ou de chauffage |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0693863A1 (fr) * | 1994-07-21 | 1996-01-24 | Wacker-Chemie GmbH | Procédé pour fixer une paroi en forme d'anneau dans un radiateur |
EP1379105A2 (fr) * | 1996-02-05 | 2004-01-07 | E.G.O. Elektro-Gerätebau GmbH | Capteur pour la détection d'un récipient de cuisson |
EP1379105A3 (fr) * | 1996-02-05 | 2004-11-03 | E.G.O. Elektro-Gerätebau GmbH | Capteur pour la détection d'un récipient de cuisson |
WO1998051128A1 (fr) * | 1997-05-07 | 1998-11-12 | Compagnie Europeenne Pour L'equipment Menager - Cepem | Foyer de cuisson a detection de la presence d'un recipient |
FR2763116A1 (fr) * | 1997-05-07 | 1998-11-13 | Europ Equip Menager | Foyer de cuisson a detection de la presence d'un recipient |
EP3518618B1 (fr) | 2009-07-29 | 2020-09-16 | BSH Hausgeräte GmbH | Plaque de cuisson pourvue d'au moins deux zones chauffantes |
Also Published As
Publication number | Publication date |
---|---|
US5223697A (en) | 1993-06-29 |
ES2071196T3 (es) | 1995-06-16 |
ATE121256T1 (de) | 1995-04-15 |
JPH05326121A (ja) | 1993-12-10 |
YU190391A (sh) | 1994-06-24 |
DE9101759U1 (de) | 1992-04-09 |
EP0490289B1 (fr) | 1995-04-12 |
DE4039501A1 (de) | 1992-06-17 |
DE59105171D1 (de) | 1995-05-18 |
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