EP0359028A1 - Installation de chauffage - Google Patents

Installation de chauffage Download PDF

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Publication number
EP0359028A1
EP0359028A1 EP89115955A EP89115955A EP0359028A1 EP 0359028 A1 EP0359028 A1 EP 0359028A1 EP 89115955 A EP89115955 A EP 89115955A EP 89115955 A EP89115955 A EP 89115955A EP 0359028 A1 EP0359028 A1 EP 0359028A1
Authority
EP
European Patent Office
Prior art keywords
light
light guide
heating
heating field
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.)
Withdrawn
Application number
EP89115955A
Other languages
German (de)
English (en)
Inventor
Gerhard Gössler
Ortwin Schau
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
Application filed by EGO Elektro Gerate Blanc und Fischer GmbH filed Critical EGO Elektro Gerate Blanc und Fischer GmbH
Publication of EP0359028A1 publication Critical patent/EP0359028A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/68Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • H05B3/748Resistive heating elements, i.e. heating elements exposed to the air, e.g. coil wire heater
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/10Tops, e.g. hot plates; Rings
    • F24C15/102Tops, e.g. hot plates; Rings electrically heated
    • F24C15/105Constructive details concerning the regulation of the temperature
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2213/00Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/07Heating plates with temperature control means

Definitions

  • the invention relates to a heating device which is provided in particular for cooking and has at least one light indicator.
  • a light display for radiant heaters has become known, in which the light beam path between the light source and the glass ceramic plate is essentially influenced by a concave mirror, which is not only technically and spatially complex, but also no long-term functional reliability offers, as mirrors tend to blind very quickly under the loads in a jet heater.
  • a certain light beam path can also arise within the glass ceramic plate, so that e.g. a central light source is still poorly visible even in the edge area of the glass ceramic plate, but for this the light source would have to be very close to the glass ceramic plate and this should also have an edge that must be carefully kept clean around the individual heating field, which glass ceramic plates with several heating fields deliberately avoided for numerous known reasons becomes.
  • the invention has for its object to avoid disadvantages of known training and in particular to provide a heating device of the type mentioned, in which at least one condition criterion of the heating field can be displayed in a simple manner at a suitable location and in a suitable extent by lighting.
  • this object can be achieved by arranging at least one strand-shaped light guide which guides the light to at least one display point within its scattering range.
  • the separate light guide allows, on the one hand, the light source and, on the other hand, the light indicator to be attached virtually anywhere at any point and connected by the physical light guide, in which the light is directed within an envelope that defines it.
  • the light source can be arranged on the underside of the radiant heater, away from the radiant heater, for example together with other light sources for further heating fields or at another location.
  • the light emission of the indicator light can be on the inside or underside of the glass ceramic plate, inside the Heating field, be provided in a shovel with light indicators for further heating fields of the same hob, in the area of the dashboard or elsewhere, any combination of the arrangements mentioned being possible, for example, by providing two or more light guides for each heating field a single common or multiple light sources can be operated. Separate light guides can also be strung together in series or to form branches of the light beam path.
  • the heater can in particular be a radiant heater, but also an induction heater or a contact heater or the like.
  • the measures according to the invention can be used wherever heating is carried out through a translucent or translucent plate.
  • the light display essentially in a uniform distribution around the outer circumference of the heating field, in particular radially outside the heating resistors or radially outside an outer contact edge of the support or outside that field which is usually covered by the bottom of a cooking vessel to be heated.
  • a single light guide is advantageously provided for the respective heating field or the respective heating field part, wherein this light guide can have light inlets for the same light source at both rod ends.
  • the light guide can be arranged very close to the glass ceramic plate, while the light source can be arranged further away from it or shielded from the glass ceramic plate.
  • the light guide is located in areas of the hotplate or the radiant heater that are less thermally stressed, it can be formed by a simple, in particular multiply curved glass rod, while it is expediently formed by a rod made of quartz glass when arranged in regions that are subject to higher thermal stresses.
  • the light guide can also consist of a bundle of optical fibers, which then end in different longitudinal areas of the light guide to form light exits.
  • the cross sections of the light guide can change to adapt to the respective spatial requirements, the light guide e.g. in the area in which it is to be passed crossing a rod-shaped temperature sensor, may have flatter cross sections. Circular, semicircular, flat-oval and similar cross-sections are conceivable as cross-sections. The transition between different cross sections is, if desired, chosen so that no light decoupling occurs. With heating that only leads to low temperatures of the light guide, e.g. an induction heater, the light guide can also be made of plastic.
  • the light source or the light input to the light guide can be switched so that there is both an indication of the switch-on and switch-off state of the associated heating field as well as its hot state, ie that the same light source or a second light source is provided with the light indicator via the light guide for as long Light is supplied until the temperature of the heating field has dropped below a certain, uncritical value.
  • the luminous intensity of the illuminated display or the light source is changed continuously or in stages so that, for example, each power setting of the manual switching device for the heating field is assigned a specific luminous intensity.
  • the light intensity expediently also increases with an increasingly higher power setting. This gives the user an indication of the level of the selected setting, which is initially a setpoint setting and therefore cannot be recognized directly on the heating field or on the heating resistors themselves.
  • a heating unit for heating at least one hob or the like a heating unit for heating at least one hob or the like.
  • Consists of a circular or polygonal jet heater 1 which forms a self-contained assembly unit and which is arranged on the inside 3 of a flat glass ceramic plate 2, the outside 4 of which is the standing area for a Can form a cooking vessel.
  • the radiant heater 1 has a bowl-shaped carrier 5 with an outer sheet metal carrier shell 6, a relatively dimensionally unstable mineral insulation 7 arranged on the bottom thereof and a one-part or multi-part, shell-shaped molded body which has an insulating carrier 8 for at least one radiant heater 11, such as a essentially exposed resistance filament and / or at least one halogen lamp and an outer circumference, protruding against the plate 2
  • an insulating carrier 8 for at least one radiant heater 11, such as a essentially exposed resistance filament and / or at least one halogen lamp and an outer circumference, protruding against the plate 2 Forms outer edge 9, the end face of which is provided as the contact surface 10 determining the contact plane for the essentially thermal and light-tight contact on the inside 3 of the plate 2.
  • the heating field 12 of the cooking surface is determined by the heating resistor 11 or the inner circumference of the outer edge 9.
  • the shell edge 18 of the support shell 6 is slightly back from the contact plane and merges into the shell bottom via an annular shoulder 19 which is slightly
  • a light indicator 20 is provided with a light source 21 having a halogen lamp 22, whose filament 23 is enclosed in a transparent bulb and is electrically connected to at least one display circuit by its easily detachable insertion into a socket 25.
  • the light source 21 is located directly adjacent to the outer circumference of the carrier 5 in a housing 26 which extends approximately over the entire height of the carrier 5, is set back slightly from the inside of the plate 3, has a greater extent in the circumferential direction than radial to the radiant heater 1 and with a hood-shaped plug on a base 27 carrying the socket 25, which can be easily lifted off, the lamp 22 both to the plate 2 and in the circumferential direction, namely essentially fully on all sides shields constantly.
  • a vent 29 is provided which is formed by openings in the housing hood part.
  • each light input 32 or 33 is formed by the end face of one of the two ends 35, 36 of a one-piece light guide rod made of transparent material, the circumferential surface of which, expediently over most of its length, has the smoothness resulting from the glass melt or the like.
  • the ends 35, 36 are inserted through closely matched openings in the end walls of the housing 26 and angled slightly away from the contact plane, so that the filament 23 can be at a greater distance from the contact plane than the main part of the light guide 30 which is essentially parallel to the contact plane .
  • the distance of the light guide 30 from the contact plane can be in the order of its cross-sectional width or less.
  • the light guide 30 is essentially axially aligned with the heating field 12 or parallel to the outer circumference of the carrier 5 at a distance from it, so that in the illuminated state it practically surrounds the hob 12 and can be easily recognized through the plate 2 which is transparent at least in its area Luminous wreath can form.
  • the light guide 30 for the light coupling has numerous, for example essentially uniformly distributed, light outlets 40, which can be provided essentially over the entire circumference of the light guide 30, which is thus in this area by the The presence of the light exits forms an essentially ring-shaped display section 42 which directly serves for the illuminated display.
  • Each light exit 40 is by at least one prism-like breaking through the outer circumference of the light guide 30, e.g. at about 45 ° to the contact plane inclined reflection flank or formed by a corresponding, V-shaped circumferential notch 44, which could be anywhere on the light guide circumference, but is preferably provided on the side facing away from the contact plane.
  • a continuous surface corrugation for example, a roughened surface of the light guide 30 or the like produced by chemical etching or sand blasting or similar measures can be provided instead or in addition to this, so that both a chain of lights consisting of light points strung together and also an essentially uniformly shining ring can be created throughout.
  • An annular display field 45 is created in the area of the outside 4 of the plate 2 by the light exits 40, which is spaced outside the heating field 12.
  • the light guide 30 is held on the one hand by its connection to the housing 26 and on the other hand by a separate, preferably uniformly distributed over its circumference engaging bracket 46 which is also essentially in the form of a ring essentially continuously over the length of the display section 42 or the light guide 30 can go through and expediently causes an elastically resilient mounting of the light guide 30 so that it does not break under the mechanical stresses that are possible in practice and under the thermal expansions that occur.
  • the housing 26 is fastened to the ring shoulder 19 with a holder 28 provided on its base 27, for example by screws.
  • the bracket 46 has either a nearly closed or, on both sides, approximately up to the housing 26, thin-walled sheet metal ring part or approximately uniformly distributed over the circumferential retaining tabs 47, each having an essentially open to the contact plane, adapted to the cross section of the light guide 30, channel profile 48, in which the light guide 30 is resiliently mounted.
  • the channel profile 48 which is approximately semicircular in cross section, merges into a radially inner ring jacket part, fastening tongues 49 or the like, with which the holder 46 is fastened to the carrier 5 or the shell edge 18 of the carrier shell 6.
  • the fastening tongues 49 or the like can, overlapping the end edge of the shell edge 19, lie by hanging on the inside of the shell edge 18 and through the outer edge of the insulating support 9 can be secured, but they can also be fastened by screwing or the like.
  • the temperature load is significantly lower than with an arrangement within the jet heater, so that halogen lamps with a bulb made of hard glass can be used instead of a quartz bulb.
  • the housing 26 is expediently formed on the inside with a reflective surface and on the outside with a light-absorbing, in particular black, surface.
  • the embodiment according to FIG. 5 is a so-called dual-circuit radiant heater 1a, the maximum operable heating field 12a of which has a central heating field part 14 and at least one heating field part 13 surrounding it in a ring, each of which is a separate, not shown and manually separately switchable radiant heater have, so that in particular only the central heating field part 14 alone or both heating field parts 13, 14 can be operated together.
  • the heating field parts 13, 14 are thermally separated from one another by a ring-shaped inner edge of the insulating support, not shown, for example reaching to the contact level, and with regard to their respective associated display fields.
  • a temperature limiter 15, which is also conceivable in the embodiment according to FIGS.
  • a further light guide 31 is provided for the status display when the central heating field part 14 is operated alone, the ring-shaped approximately closed and
  • display section 43 provided with indented notches 44a may lie on or outside the outer circumference of the inner edge of the insulating support or essentially in the end face of this inner edge and may thereby be held on it.
  • One end of the display section 43 which is used directly for the illuminated display, is angled essentially radially outward from the hob 12a to a substantially straight-line light connection section 39, which is used only for light conduction and not for direct light display, and is free of light exits and its radially outer end 37 forms with its end face the only light input 34 of this light guide 31, which is a separate one, but expediently the same as that Light source 21a is formed and is assigned to light source 24, which is located close to it and also lies on the outer circumference of carrier 5a.
  • the mutually expediently shielded light sources 21a, 24 can be provided in separate housings or in a common housing.
  • the other end 38 of the light guide 31 extends approximately to the angle of the connecting section 39. It can preferably be mirrored to avoid uncontrolled and undesired light phenomena.
  • the light exits of the light guide 31 are denoted by 41 and, due to the design described, are assigned to a separate, ring-shaped display field. Otherwise, the same reference numerals as in FIGS. 1 to 4 are used for corresponding parts in FIG. 5, which is why their description applies analogously.
  • the illuminated display 20 or 20a according to the invention is expediently operated with low-voltage or low-voltage halogen lamps, which are fed either by a voltage tap of a heating coil forming the associated radiant heater or by a separate transformer.
  • the light indicator or its lamp or lamps can be switched via a signal contact of the switching device for manual setting of the radiant heater, this signal contact being able to switch the respective lamp of the light indicator in parallel with a hot signal contact of the temperature limiter.
  • this signal contact being able to switch the respective lamp of the light indicator in parallel with a hot signal contact of the temperature limiter.
  • switch advises provided switch-on contact for the outer heating circuit appropriately mechanically coupled to a control contact, which is arranged in a relay circuit with self-holding contact, the relay circuit cooperating in the hot indicator circuit of the lamps.
  • the light intensity in the case of the hot display can be lower, the hot condition for both parts of the heating field can be displayed separately such that when the central heating field part is hot only the associated display field lights up, while in the hot state of both heating field parts both display fields light up.
  • Circuit arrangements for the illuminated display can also be found in DE-OS 36 35 345, to which reference is made for further details and effects.
  • a connection 50 which is preferably formed by a multipole plug, is expediently provided for the electrical connection of the illuminated display 20a to the switching device.
  • FIG. 6 shows a circuit for a two-circuit radiant heater with associated light indicators, with which the light intensity of the lamps 21b, 24b or both light guides can be controlled depending on the setpoint setting of the manual switching device 51, so that the user has a clue for the amount of the selected settings.
  • the switching device 51 to be operated with an adjusting knob 52 or the like which is expediently designed as a clocking energy regulator, has, for example Contacts which can be actuated via an actuating shaft, namely a switching contact 53, 54 for each of the two mains supply lines, and a switching contact 55 for the radiant heater 13b to be connected to the outer heating field part of the radiant heater 1b.
  • This switching contact 55 is mechanically coupled to a signal contact 58, while the actuating shaft adjusts a setpoint generator 59, namely, for example, a potentiometer, which, like the signal contact 58 and a hot alarm contact 57, influences control electronics 60.
  • the hot alarm contact 57 is a further contact of the temperature limiter switched by the temperature sensor.
  • control electronics 60 are acted upon by the potentiometer, which is mechanically coupled to the power control or switching device 51, the signal electronics 58 mechanically coupled to the connection contact 55 for the second heating circuit and the hot signal contact 57 being provided on the input side of the control electronics 60.
  • the circuit controls the lamps 21b, 24b continuously from a maximum luminosity with the highest setting of the power control device to a predetermined minimum value with the lowest setting. After the cooking process has ended and the power control device has been switched off, the lamps 21b, 24b continue to light until the hot alarm contact 57 opens. If only the radiant heater 14b of the central heating field part is switched on, only the lamp 24b and light up when the radiant heaters 13b, 14b of both parts of the heating field are switched on, both lamps light up. Otherwise, the same reference numerals are used in FIG. 6 for corresponding parts as in the other figures, but with the index "b", so that the associated description parts apply analogously. 6 also shows the transformer 61 for operating the lamps with low-voltage current.
  • the lamp 21 stands in the embodiment shown, it could also be arranged flat on the side, that is to say it could be placed. In this case, the ends of the light guide would not be bent out of the plane of the light guide, see FIG. 3, but would be bent approximately radially outward in the plane.
  • the design according to the invention is, inter alia, essentially suitable for all cooking systems in which the energy source for heating is provided above, on or below a translucent or a transparent plate made of glass, glass ceramic or the like.
  • the induction coil of an induction hob can be arranged below such a plate.
  • an electric hotplate which for example has a metallic hotplate body, can also be installed in an opening of a cooking hob made of hard glass.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Stoves And Ranges (AREA)
  • Resistance Heating (AREA)
EP89115955A 1988-09-14 1989-08-30 Installation de chauffage Withdrawn EP0359028A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3831233A DE3831233A1 (de) 1988-09-14 1988-09-14 Heizkoerper
DE3831233 1989-09-14

Publications (1)

Publication Number Publication Date
EP0359028A1 true EP0359028A1 (fr) 1990-03-21

Family

ID=6362932

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89115955A Withdrawn EP0359028A1 (fr) 1988-09-14 1989-08-30 Installation de chauffage

Country Status (5)

Country Link
US (1) US5013893A (fr)
EP (1) EP0359028A1 (fr)
JP (1) JPH02106621A (fr)
DE (1) DE3831233A1 (fr)
YU (1) YU178489A (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0438656A2 (fr) * 1990-01-26 1991-07-31 Bosch-Siemens HausgerÀ¤te GmbH Plaque de cuisson
GB2241322A (en) * 1990-02-13 1991-08-28 Ego Elektro Blanc & Fischer Temperature warning light for ceramic hobs
EP0482854A1 (fr) * 1990-10-22 1992-04-29 Moorwood Vulcan Limited Appareil de cuisson
DE4100767A1 (de) * 1991-01-12 1992-07-23 Hurst & Schroeder Gmbh Leuchtvorrichtung zur kochfeldbegrenzung und verfahren zur herstellung eines lichtleiters fuer eine leuchtvorrichtung
EP0499972A1 (fr) * 1991-02-22 1992-08-26 MMG GLASTECHNIK GmbH Anneau lumineux pour l'indication les aires de cuisson d'une plaque de cuisson en vitro-céramique
EP0540876A2 (fr) * 1991-11-07 1993-05-12 BOSCH-SIEMENS HAUSGERÄTE GmbH Plaque de cuisson
EP0627869A1 (fr) * 1993-06-03 1994-12-07 Seb S.A. Dispositif de chauffage et de régulation d'une table vitrocéramique
GB2301760A (en) * 1995-06-01 1996-12-11 Ceramaspeed Ltd Light indicator arrangement in an electric cooking plate
WO2008042805A2 (fr) * 2006-09-29 2008-04-10 Bose Corporation Affichage d'informations concernant la cuisson

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5162636A (en) * 1990-01-17 1992-11-10 E.G.O. Elektro-Gerate Blanc U. Fischer Electric cooking means
DE4039664A1 (de) * 1990-12-12 1992-06-17 Ego Elektro Blanc & Fischer Einrichtung zur anzeige des heisszustandes von kochplatten und elektrokochplatte
DE4214509C2 (de) * 1992-05-01 1995-03-09 Pistor & Boss Gmbh Elektrische Kochplatte mit Vorrichtung zur Anzeige der Restwärme
DE19651859C1 (de) * 1996-12-13 1997-12-04 Schott Glaswerke Befestigungsvorrichtung für als Kochzonenmarkierung und/oder Restwärmeanzeige dienende Lichtleiter
US7041945B2 (en) * 1999-12-02 2006-05-09 Matsushita Electric Industrial Co., Ltd. Induction heater for cooking
DE10004446B4 (de) * 2000-02-03 2004-05-06 E.G.O. Elektro-Gerätebau GmbH Beleuchtungseinrichtung für eine Heizeinrichtung
US6300602B1 (en) 2000-05-26 2001-10-09 Bsh Home Appliances Corporation Light ring display for cooktop
US6327427B1 (en) 2000-06-16 2001-12-04 Mhe Corp. Space heater and enclosure
US20030192873A1 (en) * 2001-02-21 2003-10-16 Lerner William S. Heat warning safety device using light emitting diodes
US6806444B2 (en) * 2001-02-21 2004-10-19 William S. Lerner Heat warning safety device using fiber optic cables
US6848822B2 (en) 2002-05-31 2005-02-01 3M Innovative Properties Company Light guide within recessed housing
DE20217528U1 (de) * 2002-11-07 2003-02-20 Ego Elektro Geraetebau Gmbh Anzeigeeinrichtung mit Leuchteinrichtungen für ein Haushalts-Elektrowärmegerät
US7173221B2 (en) * 2003-05-28 2007-02-06 Lerner William S Excessive temperature warning device using warning symbol outside fiber optic cable or light guide
JP3938164B2 (ja) * 2004-06-21 2007-06-27 松下電器産業株式会社 誘導加熱調理器
JP3938165B2 (ja) * 2004-06-21 2007-06-27 松下電器産業株式会社 誘導加熱調理器
JP3938163B2 (ja) * 2004-06-21 2007-06-27 松下電器産業株式会社 誘導加熱調理器
US7002109B2 (en) * 2004-07-26 2006-02-21 Klask Richard J Automatic stove timer and alarm apparatus and method of use
US7087865B2 (en) * 2004-10-15 2006-08-08 Lerner William S Heat warning safety device using fiber optic cables
US7046918B1 (en) 2004-11-23 2006-05-16 Mhe Corp. Space heater with pretreated heat exchanger
US20070204849A1 (en) * 2006-02-09 2007-09-06 Johnson Edward T Jr Ring of fire
DE102006023702A1 (de) * 2006-05-19 2007-11-22 BSH Bosch und Siemens Hausgeräte GmbH Hausgerät, vorzugsweise Kochfeld
JP4879222B2 (ja) * 2008-06-06 2012-02-22 三菱電機株式会社 誘導加熱調理器
JP2012523543A (ja) * 2009-04-07 2012-10-04 スアレス コーポレーション インダストリーズ 持ち運び可能なヒーター
FR2967236B1 (fr) * 2010-11-04 2014-10-10 Eurokera Article vitroceramique lumineux
US8886024B2 (en) 2011-06-01 2014-11-11 Suarez Corporation Industries Portable air conditioning apparatus
FR3008780B1 (fr) 2013-07-16 2018-03-02 Schott Ag Appareil de cuisson comportant des elements lumineux
ES2880299T3 (es) 2013-07-16 2021-11-24 Schott Ag Aparato de cocción con elementos luminosos
DE202013103165U1 (de) 2013-07-16 2013-09-24 Schott Ag Kochgerät mit Lichtelementen
DE202015008962U1 (de) 2015-04-24 2016-04-28 Schott Ag Glas- oder Glaskeramikartikel
US10314428B2 (en) * 2015-07-27 2019-06-11 Whirlpool Corporation Fiber optic light guide for generating illuminated indicia for an electric burner of a heating appliance
US10314427B2 (en) * 2015-07-27 2019-06-11 Whirlpool Corporation Light guide for generating illuminated indicia for an electric burner of a heating appliance
WO2017108356A1 (fr) * 2015-12-25 2017-06-29 Arcelik Anonim Sirketi Plaque à induction comprenant une source lumineuse

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2870316A (en) * 1956-05-18 1959-01-20 Philco Corp Heaters
GB1346574A (fr) * 1970-03-24 1974-02-13
GB1406028A (en) * 1971-05-06 1975-09-10 Belling & Co Ltd Domestic cookers
DE3501365A1 (de) * 1985-01-17 1986-07-17 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Glaskeramik-kochfeld

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE42818C (de) * W. KOCHS, Dozent an der Universität Bonn, und M. WOLZ in Bonn Reflektor. - Dr
US2140972A (en) * 1935-07-01 1938-12-20 Bendix Aviat Corp Means for illuminating dials of instruments
GB536887A (en) * 1939-11-29 1941-05-30 Cotton Frank Harriss Method of and means for directing and diffusing light
US2346237A (en) * 1941-06-07 1944-04-11 Gibson Refrigerator Co Electric range
US2365864A (en) * 1942-03-25 1944-12-26 Chapman Harry Edwin Means of illuminating telephone dials, etc.
US2452294A (en) * 1945-07-16 1948-10-26 Chrysler Corp Instrument lighting
US2492100A (en) * 1946-04-20 1949-12-20 Arthur H Kitson Terminal block and safety light for electric surface cooking units
US2480393A (en) * 1947-10-06 1949-08-30 Mark W Bossert Dial light
US2659069A (en) * 1951-09-12 1953-11-10 Magic Chef Inc Operating signal for electric ranges
FR1099080A (fr) * 1954-02-05 1955-08-30 Tech Electronique Perfectionnements aux dispositifs d'éclairage des cadrans ou analogues
US3067315A (en) * 1960-02-08 1962-12-04 Gen Electric Multi-layer film heaters in strip form
DE7026934U (de) * 1970-07-17 1971-12-23 Miele & Cie Temperaturanzeige bei herden.
US3718814A (en) * 1972-03-27 1973-02-27 Gen Motors Corp Fiber optic illuminator and method of making same
US4052591A (en) * 1975-09-19 1977-10-04 Harper-Wyman Company Infinite switch and indicator
DE7630251U1 (de) * 1976-09-28 1977-01-20 Jenaer Glaswerk Schott & Gen., 6500 Mainz Faseroptisches system fuer signalanzeigevorrichtungen
EP0052246A1 (fr) * 1980-11-17 1982-05-26 Bosch-Siemens HausgerÀ¤te GmbH Appareil électro-ménager
DE3434536A1 (de) * 1983-05-21 1986-03-20 Joachim Dipl.-Phys. 5020 Frechen Schick Lichtleitersystem fuer z.b. kraftfahrzeugrueckleuchtgruppen
DE3603324A1 (de) * 1986-02-04 1987-08-06 Bosch Siemens Hausgeraete Elektrisches hausgeraet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2870316A (en) * 1956-05-18 1959-01-20 Philco Corp Heaters
GB1346574A (fr) * 1970-03-24 1974-02-13
GB1406028A (en) * 1971-05-06 1975-09-10 Belling & Co Ltd Domestic cookers
DE3501365A1 (de) * 1985-01-17 1986-07-17 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Glaskeramik-kochfeld

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0438656A2 (fr) * 1990-01-26 1991-07-31 Bosch-Siemens HausgerÀ¤te GmbH Plaque de cuisson
EP0438656A3 (en) * 1990-01-26 1992-04-15 Bosch-Siemens Hausgeraete Gmbh Cooking plate
GB2241322A (en) * 1990-02-13 1991-08-28 Ego Elektro Blanc & Fischer Temperature warning light for ceramic hobs
EP0482854A1 (fr) * 1990-10-22 1992-04-29 Moorwood Vulcan Limited Appareil de cuisson
GB2249386B (en) * 1990-10-22 1994-03-30 Moorwood Vulcan Ltd Cooker hobs
DE4100767A1 (de) * 1991-01-12 1992-07-23 Hurst & Schroeder Gmbh Leuchtvorrichtung zur kochfeldbegrenzung und verfahren zur herstellung eines lichtleiters fuer eine leuchtvorrichtung
EP0499972A1 (fr) * 1991-02-22 1992-08-26 MMG GLASTECHNIK GmbH Anneau lumineux pour l'indication les aires de cuisson d'une plaque de cuisson en vitro-céramique
DE4105627A1 (de) * 1991-02-22 1992-08-27 Mmg Minnahuette Masch Glas Leuchtring zur kennzeichnung des kochfeldes bei glaskeramikabdeckungen an elektroherden
EP0540876A3 (en) * 1991-11-07 1993-06-02 Bosch-Siemens Hausgeraete Gmbh Cooking hob
EP0540876A2 (fr) * 1991-11-07 1993-05-12 BOSCH-SIEMENS HAUSGERÄTE GmbH Plaque de cuisson
EP0627869A1 (fr) * 1993-06-03 1994-12-07 Seb S.A. Dispositif de chauffage et de régulation d'une table vitrocéramique
FR2706110A1 (fr) * 1993-06-03 1994-12-09 Seb Sa Procédé et circuit de régulation d'éléments chauffants.
GB2301760A (en) * 1995-06-01 1996-12-11 Ceramaspeed Ltd Light indicator arrangement in an electric cooking plate
US5750959A (en) * 1995-06-01 1998-05-12 Ceramaspeed Limited Electric heater
GB2301760B (en) * 1995-06-01 1999-09-22 Ceramaspeed Ltd Electric heater
WO2008042805A2 (fr) * 2006-09-29 2008-04-10 Bose Corporation Affichage d'informations concernant la cuisson
WO2008042805A3 (fr) * 2006-09-29 2008-08-21 Bose Corp Affichage d'informations concernant la cuisson
US7554060B2 (en) 2006-09-29 2009-06-30 England Raymond O Displaying cooking-related information

Also Published As

Publication number Publication date
DE3831233A1 (de) 1990-03-22
JPH02106621A (ja) 1990-04-18
US5013893A (en) 1991-05-07
YU178489A (sh) 1992-07-20

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