EP0250880A2 - Corps de chauffage à rayonnement - Google Patents

Corps de chauffage à rayonnement Download PDF

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Publication number
EP0250880A2
EP0250880A2 EP87107772A EP87107772A EP0250880A2 EP 0250880 A2 EP0250880 A2 EP 0250880A2 EP 87107772 A EP87107772 A EP 87107772A EP 87107772 A EP87107772 A EP 87107772A EP 0250880 A2 EP0250880 A2 EP 0250880A2
Authority
EP
European Patent Office
Prior art keywords
heating
radiant heater
radiant
edge
carrier
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
Application number
EP87107772A
Other languages
German (de)
English (en)
Other versions
EP0250880A3 (en
EP0250880B2 (fr
EP0250880B1 (fr
Inventor
Gerhard Dipl.-Ing. Gössler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EGO Elektro Geratebau GmbH
Original Assignee
EGO Elektro Gerate Blanc und Fischer GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6304342&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0250880(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by EGO Elektro Gerate Blanc und Fischer GmbH filed Critical EGO Elektro Gerate Blanc und Fischer GmbH
Priority to AT87107772T priority Critical patent/ATE69495T1/de
Publication of EP0250880A2 publication Critical patent/EP0250880A2/fr
Publication of EP0250880A3 publication Critical patent/EP0250880A3/de
Application granted granted Critical
Publication of EP0250880B1 publication Critical patent/EP0250880B1/fr
Publication of EP0250880B2 publication Critical patent/EP0250880B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • H05B2213/04—Heating plates with overheat protection means
    • 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
    • H05B2213/07—Heating plates with temperature control means

Definitions

  • the invention relates to a radiant heater for heating a heating plate, in particular a glass ceramic heating plate with at least one hotplate, with a support for an electric radiant heater comprising at least one radiant heating resistor, such as a heating coil, which is defined by an annular periphery of a heating field, which defines a fixed heating field size a central zone extends into an inner zone of the heating field.
  • a radiant heating resistor such as a heating coil
  • radiant heat in the visible wave range is emitted as quickly as possible, so that the cook can quickly recognize the operational readiness or the operating state of the hotplate from the visible glow of the associated radiant heater, and thus as far as possible quickly a high beam power density or heat output is available.
  • the invention has for its object to provide a radiant heater of the type described, in which the time from switching on until a visible glow and thus also the parboiling time compared to previously known radiant heaters, which in particular have at least one exposed heating resistor, can be significantly reduced.
  • a radiant heater of the type described at the outset according to the invention in that an area of the radiant heater belonging to a partial output forms the periphery of the heating field and as edge heating at least over a part of the heating phase with at least one additional partial output compared with it associated area of the radiant heater of increased beam power density is provided.
  • the boil-off edge heating is not switched off at the end of the boil-up phase, but is possibly reduced to a smaller difference in its jet power density compared to the area of the jet heater located within it.
  • a variable parboil circuit is created which, during the parboil phase, at least temporarily results in faster heat development in the edge area of the radiant heater, i.e.
  • the increased power difference during the heating phase can also be used for the fact that the so operated Edge heating glows visibly in a very short time after switching on the hotplate and thus visually indicates the full operational readiness of this hotplate.
  • the described heat emission behavior of the parboiler heating which is continued to be operated during the boiling phase, can e.g. can be achieved in a simple manner in that the parboiling edge heating is provided or switched over the entire parboiling phase with relatively increased power.
  • a particularly simple switchover from the parboiling phase to the continued boiling phase can be achieved, for example, by switching a partial output of the jet heater essentially as a function of time, preferably via a temperature switch with a high switching temperature difference or hysteresis.
  • This temperature switch only switches off at a relatively high temperature influencing its temperature sensor and only at a relatively low temperature which the radiant heater usually cannot achieve during continued cooking, but only by switching it off completely and after corresponding cooling.
  • this behavioral characteristic of the temperature switch can also be achieved in that the heat coupling of the temperature sensor of the temperature switch to the radiant heater or the radiant heater is chosen to be very low such that the temperature sensor is only heated when the end of the parboiling phase is reached the switch-off temperature is heated and then can no longer cool down to its switch-on temperature due to low heat dissipation through appropriate insulation during continued cooking. This results in a time-dependent influencing of the parboiling phase using switching elements that respond exclusively to temperature influences.
  • a particularly simple embodiment of the subject matter of the invention is that at least a predetermined part of the jet heater, that is to say at least one heating resistor, is practically switched off by short-circuiting during the boiling phase.
  • a significant increase in the output in the outer region of the heating field can be achieved without any particular effort, this solution being suitable even for the simplest radiant heaters which have only a single radiant heating resistor, that is to say only a single electrical heating circuit.
  • At least one such inner part can be formed by a radiant heating resistor with a high positive temperature coefficient (PTC), in which case the device influencing the transition from the boiling phase to the continued cooking phase is exclusively by the Associated radiant heating resistor itself can be formed because the PTC resistor causes the desired reversal due to its characteristic behavior.
  • PTC positive temperature coefficient
  • parboiling edge heating is provided by a separate, in particular single-line heating circuit which extends over a maximum of 360 °, possibly bifilar, that is to say double-return heating circuit is formed, which is preferably always connected in parallel to the inner part of the jet heater. Because of its arrangement on the periphery of the heating field, this heating conductor can be subjected to a much higher load than the heating coil lying within it, for example taking up the remaining part of the heating field, which means that this area of the heating field is visible much faster and is shorter Cooking time can be reached.
  • the parboiler control device can also be formed exclusively by the heat-conducting connection between the jet heater and the carrier, without using a separate control or regulating device, since only the characteristics of this heat-conducting connection are used to end the parboiling phase.
  • a particularly low specific thermal connection between the edge heating and the support can e.g. can be achieved in that longitudinal sections of the associated heating resistor are arranged essentially freely floating in a contact-free manner with respect to the carrier, that is to say they run in a contact-free or tensioned manner between suspension sections in the manner of suspension bridge sections.
  • the longitudinal sections of the heating resistor which have a low thermal coupling to the support, can also be there by created that they are in areas of the carrier which have different thermal conductivity from the material and are formed, for example, by a thermal insulation or insulation material, which is unsuitable for the immediate mounting of the heating resistor, but has very good insulation properties.
  • Such an insulation material is used in radiant heaters, for example, as underbedding of a cup-shaped or disk-shaped insulation support body, which has lower thermal insulation values, but is suitable for the reliable determination of the heating resistance by direct embedding.
  • the relatively dimensionally stable insulation support body can be provided with openings in the area of the mentioned longitudinal sections of the heating resistor, in which upward projections of the underbedding expediently protrude such that these projections essentially completely fill the openings, at least in plan view, these projections can be set back at least partially in the vertical direction in relation to the front side associated with the heating resistors and / or can be set at least partially in front of it.
  • the insulation support body can, for example, be a relatively solid molded body made of mineral fibers, made of a material such as e.g. is known under the trade name "Fiberfrax", while the underbedding is based on pyrogenic silica.
  • the parboil control device expediently has a temperature sensor actuating the associated switch, which is preferably countered by an insulation layer is thermally insulated above the jet heater, which can be achieved in a simple manner without special additional insulation measures in that the temperature sensor is embedded in the already existing insulation material of the carrier, that is to say on the side of the jet heating resistor facing away from the heating plate. If the temperature sensor is designed as an expansion rod sensor, it can be embedded in the insulation carrier in a simple manner simply by inserting it into the insulation carrier, and its switching head can be located outside the carrier.
  • This switch which operates in the manner of a temperature protection switch, can also be formed by a so-called Klixon thermostat, which interacts with a heat conducting rod, which transfers the heat from the sensing point to the temperature sensor in the switching head of the thermostat, for example formed by a bimetal sensor.
  • a radiant heater 1 according to the invention, which is intended to be arranged on the underside of a translucent heating plate 2 made of glass ceramic or the like, has a shell-shaped or cup-shaped support 4.
  • the carrier 4 consists essentially of a one-part or multi-part inner shell 5 made of at least one insulation material and a relatively thin-walled outer shell 6, which serves to protect and mount the inner shell 5, which preferably consists of sheet steel.
  • the inner shell 5 carries on its substantially flat or parallel to the heating plate 2 floor a radiant heater 7 to be operated by electrical current in the form of at least one encapsulated heating resistor 8, but it is conceivable that at least part of the power of the radiant heater 1 also with a encapsulated radiant heater, i.e. a bulb lamp, such as a halogen lamp, can be operated.
  • the radiant heater has only unencapsulated heating resistors.
  • the heating resistor 8 is laid in a double spiral approximately in such a way about the central axis of the radiant heater 1 that its two connection ends 14 on the periphery of the essence Lichen heating field 1O delimited by the outermost, almost annularly closed spiral turn.
  • a predetermined number of outer turns of the heating resistor 8, namely about half of all turns or about three spiral turns in the exemplary embodiment shown, are provided as parboiling edge heating 9 for operation with a relatively increased beam power density during the parboiling phase, while the rest are within this marginal heating 9 lying turns of the same heating resistor form a residual partial power 11, which can be operated in a variable power gradient compared to the edge heating 9.
  • the entire jet heater 7, that is to say the only heating resistor 8 forming this, is operated during the entire heating operation by means of an adjustable control device or, for example, a clocking power control device, with the jet heater 7 being connected to the mains current in between.
  • an adjustable control device or, for example, a clocking power control device for example, a clocking power control device
  • the jet heater 7 being connected to the mains current in between.
  • An additional control device 13 is provided for the different operation of the jet heater 7 in the parboiling phase, on the one hand, and in the boiling phase, on the other hand, whose temperature sensor 17 is exposed to the temperature inside or in the full cross section of the inner shell 5.
  • the temperature sensor 17, which is an expansion rod sensor with an outer tube and an inner rod arranged therein with different offs expansion coefficient or a heat-conducting rod, which supplies the heat from the sensing point to the switching head of the control device 13 located below the switching head of the temperature limiter 15 on the outside of the carrier 4, is also parallel to the heating plate 2, but below the bottom surface of the inner shell receiving the jet heater 7 5 and above the underside, i.e.
  • this temperature sensor 17 being shorter than half the width of the heating field 10 can be such that it lies only on one side of its central axis essentially exclusively in the area of the associated turns of the edge heating 9.
  • a cut-off switch 18 Arranged in the switch head of the control device 13 designed as a cut-off switch 18 in the form of, for example, a snap switch, which is not directly connected to the power supply for the radiant heater 7, is arranged in a short-circuit circuit of a short-circuit for the partial power 11, that is to say only via its two connecting poles two spaced apart locations of the heating resistor 8 so that they are electrically connected so that when the parboiler 11 is closed, the longitudinal section of the heating resistor 8 belonging to the partial power 11 and occupying the inner zone of the heating field 10 is essentially taken out of operation by short-circuiting.
  • the residual heating associated with the parboil edge heating and essentially extending to the periphery of the heating field 10 is operated with the longitudinal section of the heating resistor 8 during the closed short-circuit circuit 19 with a relatively substantially increased beam power density and, after being switched on, heated up very quickly so that by the Heating plate 2 a visible glow can be taken.
  • the heating switch 18 opens, so that now also the longitudinal section of the heating resistor 8 belonging to the partial power 11 goes into full power operation and thus the difference in the jet power density between the area of the heating edge heating 9 and that of the partial power 11 is at least reduced.
  • increased power should be available for as long as possible during the boil-up without switching back to the increased power again during continued cooking and after the temperature monitor forming the control device 13 has responded.
  • the shortening of the boil-up time to be achieved by the design according to the invention also results from the fact that the cooking vessel base 3 of cooking vessels is usually curved in such a way that the cooking vessel base 3 has the most direct contact with the heating plate 2 in the region of its outer edge and therefore there is a particular one faster heat transfer is possible.
  • arrows, the length of which represent the beam power density indicate that an operating arrangement is provided in the subject matter of the invention in such a way that the power density is greatest in this edge region in the boiling phase. In the continued cooking phase, either this external power density in the edge area 9 can be reduced, the power density in the area of the partial power 11 can be increased, or both processes can be carried out simultaneously.
  • the switching hysteresis of the control device 13 is chosen so large that it is almost full before constant cooling of the radiant heater 1 no longer switches back to the short-circuit position, that is to say in the closed position of the parboiler switch 18.
  • this longitudinal section can also be formed by a heating conductor with a high positive temperature coefficient, which consists, for example, of molybdenum disilicide.
  • a heating conductor with a high positive temperature coefficient which consists, for example, of molybdenum disilicide.
  • the carrier 4 is stretched with the end face of the edge of the shell of the inner shell 5 under pressure over the entire surface against the inside or underside of the heating plate, so that the inner circumference of this contact edge essentially coincides with the periphery or outer boundary of the heating field 10.
  • the heating resistor 8 can be immovably fixed to the inner shell 5 by at least partially embedding its coils in the insulating material.
  • the radiant heater can also have a circular, rectangular or square shape, deviating from the circular shape, the heating resistor then expediently following this outer contour in its spiral shape.
  • the radiant heater 1 a has as the parboiling edge heater 9 a one in only one operation, i.e. only in a single-strand loop or bifilar external heating resistor made of particularly thin, heavy-duty resistance wire, i.e. of a resistance wire that is thinner and is more resilient than the heating resistor belonging to the partial power 11a.
  • the radiant heater of this radiant heater 1a is therefore basically of two circuits, but the two heating circuits are connected in parallel or in series, which is why they are always switched on and off simultaneously.
  • the inner shell 5a consists of two superimposed support bodies 2O, 21 of different insulating materials and thicknesses, the lower, plate-shaped support body 2O consisting of a powdery pressed mass, being relatively pressure-elastic, a greater thickness than the molded body 21 lying thereon over the entire surface has and above all has a thermal insulation value which is significantly higher than that of the support body 21.
  • the disk-shaped support body 21, for example is a relatively dimensionally stable molded body made of pressed mineral fibers, on which the heating resistors are held by embedding in places.
  • This support body 21 has on the upper side upwards about its remaining thickness, approximately radial to the central axis of the radiant heater 1 a and integrally formed with the rest of the support body 21 webs.
  • the webs lying only in the radially outer region of the heating field are each formed between depressions 23, which extend only from the periphery of the heating field part of the turns of the heating resistors are sufficient.
  • the windings lying radially inside the depressions 23, that is to say in the central region, are therefore in direct contact with the inner shell 5a.
  • these turns are held by embedding exclusively on the webs 22, while according to FIG.
  • the distance of the longitudinal sections of the heating resistors bridging the depressions parallel to their bottom surfaces from these bottom surfaces can be smaller than the outside diameter of these heating resistors, in particular about half as large, while the heating resistors are embedded in the webs 22 by about half their outside diameter.
  • the distance between adjacent webs can be approximately twice their width.
  • the upper support body 21b instead of the recesses 23 there can also be openings or openings 23b which are continuous over the thickness of the support body 21b and which are at least partially filled by projections 24 of the lower support body 2Ob.
  • the projections 24 extend slightly above the upper sides of the webs 22b, but are provided with channel-shaped receiving grooves 25 in the region of each longitudinal section crossing them, the bottom surfaces of which can be slightly lower than the upper side of the webs 21b.
  • the depth of the receiving grooves 25, against which the associated longitudinal sections of the heating resistors can be provided in a contact-free manner or only loosely lying against the embedded surface is expediently so large that the adjacent opening grooves 25 separating webs of the support body 21b extend only approximately to the middle of the outer diameter of these longitudinal sections.
  • the heat dissipation from the above-mentioned longitudinal sections of the radiant heaters lying between the webs 21b into the inner shell 5b is particularly low, so that these longitudinal sections very quickly come to a visible glow after being switched on from the cold state.
  • the fact that the support body 20b is thickened by the projections 24 at least in a few, grid-like zones beyond the underside of the support body 21b results in excellent additional thermal insulation. But it could also be.
  • control device 13 can be designed similarly to that according to DE-OS 32 47 O28 or that according to EP-A-O1 14 3O7, to which reference is made for further details.
  • the parboiler heating is in the same space as that of the rest of the jet heater 7, which is enclosed by the carrier 4 and the heating plate 2, and is not separated from it in a ring shape by an intermediate web of the carrier.
  • the invention results in a higher specific power in the outdoor area, which may be as high as it could not be expected from the heating resistor and / or the glass ceramic plate in continuous operation. Due to its mostly temporary effect and the higher power consumption in this area, especially during the parboiling phase, it does not trigger any harmful effects.
  • a higher specific power could also be provided outdoors. It mainly affects during the boil-up time, as the outer heating conductor glows faster, so that the desired optical effects are triggered and earlier with the Heat transfer to the cooking vessel begins. During the continued cooking phase, this power distribution, which is advantageously maintained without switching, hardly plays out, at least not negatively, because the total power is then reduced, for example, by switching the total power on and off cyclically. It has been shown that a higher specific load on the edge area and in particular on the outer heating conductor winding does not play an important role in their service life, since these do not burn out even with some overload.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Electric Stoves And Ranges (AREA)
  • Resistance Heating (AREA)
  • Control Of Resistance Heating (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Power Steering Mechanism (AREA)
EP87107772A 1986-07-03 1987-05-28 Corps de chauffage à rayonnement Expired - Lifetime EP0250880B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87107772T ATE69495T1 (de) 1986-07-03 1987-05-28 Strahlheizkoerper.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3622415 1986-07-03
DE19863622415 DE3622415A1 (de) 1986-07-03 1986-07-03 Strahlheizkoerper

Publications (4)

Publication Number Publication Date
EP0250880A2 true EP0250880A2 (fr) 1988-01-07
EP0250880A3 EP0250880A3 (en) 1989-02-08
EP0250880B1 EP0250880B1 (fr) 1991-11-13
EP0250880B2 EP0250880B2 (fr) 1997-04-23

Family

ID=6304342

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87107772A Expired - Lifetime EP0250880B2 (fr) 1986-07-03 1987-05-28 Corps de chauffage à rayonnement

Country Status (8)

Country Link
US (1) US4810857A (fr)
EP (1) EP0250880B2 (fr)
JP (1) JPS6366891A (fr)
AT (1) ATE69495T1 (fr)
AU (1) AU596673B2 (fr)
DE (2) DE3622415A1 (fr)
ES (1) ES2027255T3 (fr)
YU (1) YU107487A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3908599A1 (de) * 1989-03-16 1990-09-20 Ako Werke Gmbh & Co Strahlungsheizeinrichtung
EP0337147A3 (fr) * 1988-04-15 1990-12-05 E.G.O. Elektro-Geräte Blanc u. Fischer Elément chauffant radiant
WO2007131852A1 (fr) * 2006-05-15 2007-11-22 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de commande de radiateurs rayonnants

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3623130A1 (de) * 1986-07-09 1988-01-21 Ako Werke Gmbh & Co Strahlungsbeheizung
US5177339A (en) * 1988-05-27 1993-01-05 Ceramaspeed Limited Radiant electric heaters
AU112298S (en) 1990-07-15 1991-09-30 E G O Elektro Gerate Blanc U Fischer A set of radiant heaters
DE4022292A1 (de) * 1990-07-15 1992-01-16 Ego Elektro Blanc & Fischer Elektrisches strahlungsheizelement
DE4039501A1 (de) * 1990-12-11 1992-06-17 Ego Elektro Blanc & Fischer Elektrischer heizkoerper, insbesondere strahlheizkoerper
DE9113992U1 (de) * 1991-11-12 1992-01-02 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Strahlungs-Heizeinheit
US5796075A (en) * 1992-03-09 1998-08-18 E.G.O. Elektro-Gerate Blanc Und Fisher Gmbh & Co. Kg Heater, particularly for kitchen appliances
DE4229375C2 (de) * 1992-09-03 2000-05-04 Ego Elektro Blanc & Fischer Strahlungs-Heizkörper
JP2574296Y2 (ja) * 1992-06-22 1998-06-11 象印マホービン株式会社 調理器の加熱装置
KR940010455B1 (ko) * 1992-09-24 1994-10-22 김영길 고강도, 우수한 전기전도도 및 열적안정성을 갖는 동(Cu)합금 및 그 제조방법
DE9214270U1 (de) * 1992-10-22 1994-04-07 Fritz Eichenauer Gmbh & Co Kg, 76870 Kandel Elektrischer Strahlungsheizeinsatz für Glaskeramik-Kochfeld
GB2275163B (en) * 1993-02-11 1996-04-03 Ceramaspeed Ltd Radiant electric heater and method
SE9403517D0 (sv) * 1994-10-14 1994-10-14 Electrolux Ab Byggelement för hushållsspis
GB2307836B (en) * 1995-11-30 2000-05-24 Ceramaspeed Ltd Radiant electric heater arrangement
DE19604306C2 (de) * 1996-02-07 2000-05-11 Ako Werke Gmbh & Co Strahlungsheizkörper
DE19604658A1 (de) * 1996-02-09 1997-08-14 Ako Werke Gmbh & Co Temperaturmeßeinrichtung für eine Regelschaltung eines elektrischen Strahlungsheizgeräts
DE19638517A1 (de) * 1996-09-20 1998-03-26 Ako Werke Gmbh & Co Strahlungsheizkörper für eine Kochstelle
FR2760957B1 (fr) * 1997-03-21 1999-10-01 Moulinex Sa Appareil de cuisson electrique
TW577813B (en) 2000-07-10 2004-03-01 Semiconductor Energy Lab Film forming apparatus and method of manufacturing light emitting device
DE10310255A1 (de) * 2003-03-05 2004-09-16 E.G.O. Elektro-Gerätebau GmbH Elektrische Heizung mit einer Kontaktkochplatte
DE102004059159A1 (de) * 2004-12-08 2006-06-14 BSH Bosch und Siemens Hausgeräte GmbH Kochfeld
DE102005005520A1 (de) * 2005-02-01 2006-08-10 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung mit Temperatursensor und Kochfeld mit Heizeinrichtungen
US9399219B2 (en) * 2009-02-13 2016-07-26 Frank Leo Spangler Thermal Array
US9662653B2 (en) * 2010-01-29 2017-05-30 Frank Leo Spangler Thermal array and method of use
DE102010063454B4 (de) 2010-12-17 2022-02-03 BSH Hausgeräte GmbH Strahlungsheizkörper für ein Kochfeld sowie Kochfeld
US10006638B2 (en) * 2016-01-04 2018-06-26 Haier Us Appliance Solutions, Inc. Cooktop assemblies and methods for operating same
KR102111109B1 (ko) * 2017-02-21 2020-05-14 엘지전자 주식회사 면상 발열장치, 이를 포함하는 전기 레인지 및 그 제조방법
US20210041108A1 (en) * 2019-08-09 2021-02-11 Eidon, Llc Apparatuses for radiant heating

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3247028A1 (de) 1982-12-18 1984-06-20 Ego Elektro Blanc & Fischer Temperaturregeleinrichtung fuer ein waermegeraet

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1979471A (en) * 1929-05-27 1934-11-06 Otto A Knopp Electric heater
DE905800C (de) * 1949-02-18 1954-03-08 Carl Reher Einrichtung zur Temperaturueberwachung
DE807698C (de) * 1949-07-24 1951-07-02 Otto Kiefer Dipl Kfm Aus zwei Metallstaeben von verschiedenen Ausdehnungskoeffizienten bestehender Thermostat
CH266979A (de) * 1949-08-18 1950-02-28 Amsler Alfred J & Co Temperaturregler mit elektrischer Kontaktvorrichtung.
US3912905A (en) * 1974-02-25 1975-10-14 Kanthal Corp Electric resistance heating device
US4008454A (en) * 1975-11-04 1977-02-15 General Electric Company Differential expansion rod and tube thermostat
DE2729929C3 (de) * 1977-07-02 1981-10-08 Karl 7519 Oberderdingen Fischer Strahlungs-Heizeinheit für Glaskeramik-Elektrokochgeräte
DE2820114C2 (de) * 1978-05-09 1987-02-05 E.G.O. Austria Elektro-Geräte GmbH, Heinsfels, Osttirol Strahlungs-Heizeinheit insbesondere für Glaskeramik-Elektrokochgeräte
DE3007037A1 (de) * 1980-02-26 1981-09-03 Ego Elektro Blanc & Fischer Glaskeramik-kochgeraet
ZA813746B (en) * 1980-07-22 1982-07-28 Micropore International Ltd Electric radiant heater unit for a glass ceramic top cooker
US4574187A (en) * 1980-08-29 1986-03-04 Sprague Electric Company Self regulating PTCR heater
DE8133341U1 (de) * 1980-11-17 1982-03-25 Micropore International Ltd., Droitwich, Worcestershire Elektrischer strahlungsheizer fuer herde mit glaskeramikdeckplatten
GB2087698B (en) * 1980-11-17 1984-03-28 Micropore International Ltd Electric radiant heater unit
DE3206024A1 (de) * 1982-02-19 1983-09-08 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Elektrokochplatte, vorzugsweise glaskeramik-kochmulde
DE3314501A1 (de) * 1983-04-21 1984-10-25 Ego Elektro Blanc & Fischer Heizelement, insbesondere strahlungs-heizelement fuer die beheizung von glaskeramikplatten
EP0103741B1 (fr) * 1982-09-16 1988-11-17 E.G.O. Elektro-Geräte Blanc u. Fischer Elément chauffant, en particulier élément chauffant radiant pour le chauffage de plaques en céramique
IT8320567U1 (it) * 1983-01-21 1984-07-21 Irca Spa Elemento riscaldante elettrico, in particolare per piani lisci di cottura
DE3410442A1 (de) * 1983-09-17 1985-09-26 Ego Elektro Blanc & Fischer Temperaturfuehler, insbesondere fuer einen temperaturbegrenzer fuer eine glaskeramik-kocheinheit
GB8412339D0 (en) * 1984-05-15 1984-06-20 Thorn Emi Domestic Appliances Heating apparatus
JPS62271386A (ja) * 1986-01-04 1987-11-25 カ−ル・ツワイス・ステイフツング ガラス−セラミツク系調理用レンジ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3247028A1 (de) 1982-12-18 1984-06-20 Ego Elektro Blanc & Fischer Temperaturregeleinrichtung fuer ein waermegeraet
EP0114307A1 (fr) 1982-12-18 1984-08-01 E.G.O. Elektro-Geräte Blanc u. Fischer Dispositif de régulation de la température d'un appareil de chauffage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0337147A3 (fr) * 1988-04-15 1990-12-05 E.G.O. Elektro-Geräte Blanc u. Fischer Elément chauffant radiant
DE3908599A1 (de) * 1989-03-16 1990-09-20 Ako Werke Gmbh & Co Strahlungsheizeinrichtung
WO2007131852A1 (fr) * 2006-05-15 2007-11-22 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de commande de radiateurs rayonnants
DE102006022571A1 (de) * 2006-05-15 2007-11-22 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung zur Steuerung von Strahlungsheizkörpern

Also Published As

Publication number Publication date
AU7520687A (en) 1988-01-07
EP0250880A3 (en) 1989-02-08
EP0250880B2 (fr) 1997-04-23
AU596673B2 (en) 1990-05-10
DE3622415A1 (de) 1988-01-07
DE3774497D1 (de) 1991-12-19
ES2027255T3 (es) 1992-06-01
ATE69495T1 (de) 1991-11-15
JPS6366891A (ja) 1988-03-25
EP0250880B1 (fr) 1991-11-13
US4810857A (en) 1989-03-07
YU107487A (en) 1989-12-31

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