ES1072062U - Electrical radiant heater adapted to a cooking hob plate - Google Patents

Electrical radiant heater adapted to a cooking hob plate Download PDF

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Publication number
ES1072062U
ES1072062U ES201030209U ES201030209U ES1072062U ES 1072062 U ES1072062 U ES 1072062U ES 201030209 U ES201030209 U ES 201030209U ES 201030209 U ES201030209 U ES 201030209U ES 1072062 U ES1072062 U ES 1072062U
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ES
Spain
Prior art keywords
housing
radiating light
light according
insulating base
electric radiating
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Granted
Application number
ES201030209U
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Spanish (es)
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ES1072062Y (en
Inventor
Daniel De Los Toyos Lopez
Fco. Javier Caballero Olaortua
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Eika SCL
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Eika SCL
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Priority to ES201030209U priority Critical patent/ES1072062Y/en
Publication of ES1072062U publication Critical patent/ES1072062U/en
Application granted granted Critical
Publication of ES1072062Y publication Critical patent/ES1072062Y/en
Priority to EP11382060A priority patent/EP2365729A1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Resistance Heating (AREA)

Abstract

Electric radiant spotlight adapted to a hob (2), in particular of a glass ceramic cooker, comprising at least one heating resistance (4), an insulating base (3) on which the heating resistance is fixed (4), an insulating ring (6) arranged supported on the insulating base (3) and on which the cooking plate (2) is supported, a casing (5) inside which the insulating base (3) is housed and at least partially the insulating ring (6), characterized in that the casing (5) has a bottom surface (5c) that includes an opening (8). (Machine-translation by Google Translate, not legally binding)

Description

Foco radiante eléctrico adaptado a una placa de cocción.Electric radiant light adapted to a plate cooking.

Sector de la técnicaTechnical sector

La presente invención se refiere a un foco radiante eléctrico adaptado a una placa de cocción, en particular de una cocina vitrocerámica.The present invention relates to a focus electric radiant adapted to a hob, in particular of A ceramic hob.

Estado anterior de la técnicaPrior state of the art

Son conocidos en el estado de la técnica, focos radiantes eléctricos adaptados a una placa de cocción los cuales comprenden una base aislante, sustancialmente cilíndrica, sobre la cual se fija al menos una resistencia de caldeo, un aro aislante que se dispone apoyado sobre la base aislante y sobre el cual se apoya la placa de cocción, y unos medios de refuerzo en forma de carcasa metálica que aloja en su interior la base aislante y parcialmente el aro aislante, siendo la carcasa metálica soporte para un dispositivo limitador de temperatura y un terminal de conexión, tal y como se divulga en los documentos EP1968345A1 y DE102006045451A1.They are known in the state of the art, spotlights electric radiators adapted to a hob which they comprise an insulating base, substantially cylindrical, on the which is fixed at least one heating resistance, an insulating ring that it is supported on the insulating base and on which it rests the cooking plate, and a housing-shaped reinforcing means metal housing inside the insulating base and partially the insulating ring, the metal housing being support for a device temperature limiter and a connection terminal, as disclosed in documents EP1968345A1 and DE102006045451A1.

En EP1022930A2, los medios de refuerzo incluyen al menos una banda que se extiende a lo largo de la base aislante, disponiéndose los extremos opuestos de la banda extendidos al menos parcialmente sobre la pared lateral de la base aislante. El foco radiante descrito incluye preferentemente dos bandas que se disponen sustancialmente ortogonales entre sí soportando la base aislante.In EP1022930A2, reinforcement means include at least one band that extends along the insulating base, arranging the opposite ends of the band extended at least partially on the side wall of the insulating base. Focus Radiant described preferably includes two bands that are arranged substantially orthogonal to each other supporting the base insulating.

Exposición de la invenciónExhibition of the invention

El objeto de la presente invención es el de proporcionar un foco radiante eléctrico adaptado a una placa de cocción, en particular de una cocina vitrocerámica, según se define en las reivindicaciones.The object of the present invention is that of provide an electric radiant bulb adapted to a plate cooking, in particular of a ceramic hob, as defined in the claims.

El foco radiante eléctrico comprende al menos una resistencia, una base aislante sobre la cual se fija la resistencia, un aro aislante dispuesto apoyado sobre la base aislante y sobre el cual se dispone apoyada la placa de cocción, y una carcasa en cuyo interior se aloja la base aislante y al menos parcialmente el aro aislante.The electric radiant bulb comprises at least a resistor, an insulating base on which the resistance, an insulating ring arranged supported on the base insulation and on which the cooking plate is laid, and a housing inside whose insulating base is housed and at least partially the insulating ring.

La carcasa tiene una superficie de fondo que incluye una abertura de modo que se minimiza la conducción de calor entre la base aislante y la carcasa, al reducir la superficie enfrentada entre dicha base aislante y la superficie de fondo. Además, se minimiza el peso de la carcasa, obteniéndose un foco radiante de gran capacidad de aislamiento y coste mínimo gracias a la geometría optimizada de la carcasa, que permite una fabricación repetitiva de la misma.The housing has a bottom surface that includes an opening so that heat conduction is minimized between the insulating base and the housing, by reducing the surface facing between said insulating base and the bottom surface. In addition, the weight of the housing is minimized, obtaining a focus radiant of great capacity of isolation and minimum cost thanks to optimized shell geometry, which allows fabrication repetitive of it.

Esta y otras características y ventajas de la invención se harán evidentes a la vista de las figuras y de la descripción detallada de la invención.This and other features and advantages of the invention will become apparent in view of the figures and of the Detailed description of the invention.

Descripción de los dibujosDescription of the drawings

La Fig. 1 es una sección transversal de una primera realización del foco radiante según la invención.Fig. 1 is a cross section of a first embodiment of the radiant bulb according to the invention.

La Fig. 2 es una vista en planta de la carcasa del foco radiante mostrado en la figura 1.Fig. 2 is a plan view of the housing of the radiant focus shown in figure 1.

La Fig. 3 es una sección transversal de una segunda realización del foco radiante según la invención.Fig. 3 is a cross section of a second embodiment of the radiant bulb according to the invention.

Exposición detallada de la invenciónDetailed statement of the invention

En las figuras 1 a 3, se muestra un foco radiante eléctrico 1 según la invención adaptado a una encimera de cocción 2, comprendiendo el foco radiante 1 una base aislante 3, sustancialmente de revolución, que tiene una superficie superior 3a sustancialmente plana sobre la cual se fijan una o varias resistencias 4 de caldeo, un aro aislante 6 que se apoya sobre la superficie superior 3a de la base aislante 3 y que contacta con la superficie interior de la encimera de cocción 2, y la carcasa 5 adaptada a la geometría exterior de la base aislante 3 y al aro aislante 6, alojando la carcasa 5 en su interior dicha base aislante 3 y parcialmente, dicho aro aislante 6.In figures 1 to 3, a focus is shown electric radiant 1 according to the invention adapted to a countertop firing 2, the radiant bulb 1 comprising an insulating base 3, substantially of revolution, which has an upper surface 3a substantially flat on which one or more are fixed heating elements 4, an insulating ring 6 that rests on the upper surface 3a of the insulating base 3 and which contacts the inner surface of cooking hob 2, and housing 5 adapted to the outer geometry of the insulating base 3 and the ring insulator 6, housing said housing 5 inside said insulating base 3 and partially, said insulating ring 6.

El foco radiante eléctrico 1 comprende además un dispositivo limitador de temperatura, no representado, que atraviesa al menos parcialmente la base aislante 3 sobre las resistencias 4, y un terminal de conexión, no representado, a través del cual se conectan las resistencias a la alimentación, estando fijado el terminal de conexión a la carcasa 5.The electric radiant bulb 1 further comprises a temperature limiting device, not shown, passing through at least partially the insulating base 3 on the resistors 4, and a connection terminal, not shown, through which connect the resistors to the power supply, with the housing connection terminal 5.

La carcasa 5 incluye una superficie de fondo 5c sustancialmente circular, un reborde exterior 5b anular, sustancialmente horizontal, que sobresale con respecto a la superficie de fondo 5c, y una pared 5a sustancialmente vertical que se extiende desde el reborde exterior 5b, una altura superior al espesor H de la base aislante 3. La base aislante 3 incluye una superficie inferior 3b sustancialmente plana y circular que se dispone enfrentada a la superficie de fondo 5c, y una superficie intermedia 3c sustancialmente anular y sustancialmente paralela a la superficie superior 3a y a la superficie inferior 3b, que se dispone apoyada sobre el reborde 5b de la carcasa 5.The housing 5 includes a bottom surface 5c substantially circular, an annular outer flange 5b, substantially horizontal, protruding from the bottom surface 5c, and a substantially vertical wall 5a that extends from the outer flange 5b, a height greater than thickness H of the insulating base 3. The insulating base 3 includes a bottom surface 3b substantially flat and circular which is it has facing the bottom surface 5c, and a surface intermediate 3c substantially annular and substantially parallel to the upper surface 3a and lower surface 3b, which is arranged resting on the flange 5b of the housing 5.

Por otra parte, la superficie de fondo 5c de la carcasa 5 incluye una abertura 8 sustancialmente circular, dispuesta sustancialmente concéntrica a la superficie de fondo 5c, de modo que se minimiza la superficie de fondo 5c enfrentada a la base aislante 3. El diámetro D1 de la abertura 8 es de al menos, aproximadamente, 3/5 partes del diámetro D2 de la superficie de fondo 5c.Moreover, the bottom surface 5c of the housing 5 includes a substantially circular opening 8, arranged substantially concentric to the bottom surface 5c, so that the bottom surface 5c facing the insulating base is minimized 3. The diameter D1 of the opening 8 is at least about 3/5 parts of diameter D2 of the bottom surface 5c.

En una primera realización mostrada en las figuras 1 y 2, la carcasa 5 está hecha de un material metálico, preferente de chapa galvanizada o de chapa aluminizada. Gracias a la abertura 8 en la superficie de fondo 5c, se consigue minimizar la conducción de calor entre la base aislante 3 y la carcasa 5 al reducir la superficie enfrentada entre dicha base aislante 3 y la superficie de fondo 5c, minimizándose de este modo el puente térmico entre la superficie de fondo 5c y la pared 5a.In a first embodiment shown in the Figures 1 and 2, the housing 5 is made of a metallic material, preferred galvanized sheet or aluminized sheet. Thanks to the opening 8 in the bottom surface 5c, it is possible to minimize the heat conduction between insulating base 3 and housing 5 to reduce the facing surface between said insulating base 3 and the bottom surface 5c, thereby minimizing the thermal bridge between the bottom surface 5c and the wall 5a.

Además, en el caso de focos radiantes 1 de un tamaño elevado, puede utilizarse el material sobrante para fabricar un foco radiante 1 de menor diámetro, con lo que se consigue una reducción de material y costes de fabricación importantes.In addition, in the case of radiant bulbs 1 of a large size, excess material can be used to make a radiant bulb 1 of smaller diameter, whereby a material reduction and significant manufacturing costs.

En una segunda realización mostrada en la figura 3, el foco radiante 1 comprende además una tapa 7 que se dispone apoyada sobre la superficie de fondo 5c, cerrando la abertura 8. De este modo es posible fabricar focos radiantes 1 de diámetros elevados en donde la base aislante 3 se conforma junto con la carcasa 5.In a second embodiment shown in the figure 3, the radiant bulb 1 further comprises a cover 7 that is arranged resting on the bottom surface 5c, closing the opening 8. From this way it is possible to manufacture radiant spotlights 1 of diameters raised where the insulating base 3 is formed together with the casing 5.

La tapa 7 está hecha de un material plástico que tiene una temperatura de fusión superior a, aproximadamente, 300ºC, una buena estabilidad dimensional, y es retardante a la llama, siendo el material plástico preferentemente un polímero de cristal líquido con una carga de 30% FV preferentemente.The lid 7 is made of a plastic material that It has a melting temperature greater than approximately 300 ° C, good dimensional stability, and is flame retardant, the plastic material being preferably a crystal polymer liquid with a load of 30% PV preferably.

En otras realizaciones, la tapa 7 puede estar integrada en la propia carcasa 5 conformando una única pieza, bien por inyección sobre la carcasa 5 o por otros medios conocidos.In other embodiments, the lid 7 may be integrated into the housing 5 itself forming a single piece, well by injection onto the housing 5 or by other known means.

En otras realizaciones, la carcasa 5 puede estar hecha de un material plástico que tiene una temperatura de fusión superior a, aproximadamente, 300ºC, una buena estabilidad dimensional, y que sea retardante a la llama. Preferentemente, el material plástico es un polímero de cristal líquido con una carga de 30% FV, que además permite inyectar piezas de espesores delgados, de modo que el volumen de la carcasa 5 no es aumentado comparativamente con respecto a una carcasa 5 hecha de chapa metálica.In other embodiments, the housing 5 may be made of a plastic material that has a melting temperature greater than approximately 300 ° C, good stability dimensional, and that is flame retardant. Preferably, the plastic material is a liquid crystal polymer with a charge of 30% FV, which also allows to inject pieces of thin thicknesses, of so that the volume of the housing 5 is not comparatively increased with respect to a housing 5 made of sheet metal.

En el caso de que la carcasa 5 está hecha de un material plástico, el foco radiante 1 puede incluir una tapa 7 hecha de un material metálico, preferentemente de chapa metálica. La tapa 7 se dispone sobre la superficie de fondo 5c de la carcasa 5. En otras realizaciones, la tapa 7 puede estar integrada en la propia carcasa 5 configurando una única pieza. Al igual que en la segunda realización mostrada en la figura 3, al incluir la tapa 7 es posible fabricar focos radiantes 1 de diámetros elevados en donde la base aislante 3 se conforma junto con la carcasa 5.In the case that the housing 5 is made of a plastic material, the radiant bulb 1 may include a cover 7 made of a metallic material, preferably of sheet metal. Cover 7 is arranged on the bottom surface 5c of the housing 5. In other embodiments, the cover 7 may be integrated in the own casing 5 configuring a single piece. As in the second embodiment shown in figure 3, by including the cover 7 it is possible manufacture radiant bulbs 1 of high diameters where the base Insulator 3 is formed together with the housing 5.

Por último, en las realizaciones mostradas en las figuras 1 a 3, la base aislante 3 está hecha por moldeo de una sola capa de material uniforme microporoso, buen aislante térmico, de buenas propiedades mecánicas y resistente a la absorción de humedad, que comprende un polvo de aerogel de sílice mezclado con fibras de refuerzo cerámica, opcionalmente materiales opacificantes y cargas cerámicas. Por otra parte, el aro aislante 6 está hecho de un material aislante que tiene buenas propiedades mecánicas, así como alta resistencia a la temperatura.Finally, in the embodiments shown in Figures 1 to 3, the insulating base 3 is made by molding a single layer of microporous uniform material, good thermal insulator, of good mechanical properties and resistant to the absorption of moisture, comprising a silica airgel powder mixed with ceramic reinforcing fibers, optionally opacifying materials and ceramic loads. On the other hand, the insulating ring 6 is made of an insulating material that has good mechanical properties as well As high temperature resistance.

Claims (14)

1. Foco radiante eléctrico adaptado a una placa de cocción (2), en particular de una cocina vitrocerámica, que comprende al menos una resistencia de caldeo (4), una base aislante (3) sobre la cual se fija la resistencia de caldeo (4), un aro aislante (6) dispuesto apoyado sobre la base aislante (3) y sobre el cual se dispone apoyada la placa de cocción (2), una carcasa (5) en cuyo interior se aloja la base aislante (3) y al menos parcialmente el aro aislante (6), caracterizado porque la carcasa (5) tiene una superficie de fondo (5c) que incluye una abertura (8).1. Electric radiating light adapted to a hob (2), in particular of a ceramic hob, comprising at least one heating resistance (4), an insulating base (3) on which the heating resistance is fixed ( 4), an insulating ring (6) disposed supported on the insulating base (3) and on which the cooking plate (2) is disposed, a housing (5) inside which the insulating base (3) is housed and at least partially the insulating ring (6), characterized in that the housing (5) has a bottom surface (5c) that includes an opening (8). 2. Foco radiante eléctrico según la reivindicación anterior, caracterizado porque la carcasa (5) incluye un reborde exterior (5b) que sobresale con respecto a la superficie de fondo (5c), sobre el cual se apoya la base aislante (3).2. Electric radiating light according to the preceding claim, characterized in that the housing (5) includes an outer flange (5b) that protrudes with respect to the bottom surface (5c), on which the insulating base (3) rests. 3. Foco radiante eléctrico según cualquiera de las reivindicaciones anteriores, caracterizado porque la abertura (8) es una abertura sustancialmente circular, dispuesta sustancialmente concéntrica a la superficie de fondo (5c).3. Electric radiating light according to any of the preceding claims, characterized in that the opening (8) is a substantially circular opening, arranged substantially concentric to the bottom surface (5c). 4. Foco radiante eléctrico según la reivindicación anterior, caracterizado porque el diámetro (D1) de la abertura (8) es al menos, aproximadamente, 3/5 partes del diámetro (D2) de la superficie de fondo (5c).4. Electric radiating light according to the preceding claim, characterized in that the diameter (D1) of the opening (8) is at least about 3/5 parts of the diameter (D2) of the bottom surface (5c). 5. Foco radiante eléctrico según cualquiera de las reivindicaciones anteriores, caracterizado porque comprende una tapa (7) que cierra la abertura (8).5. Electric radiating light according to any of the preceding claims, characterized in that it comprises a cover (7) that closes the opening (8). 6. Foco radiante eléctrico según la reivindicación anterior, caracterizado porque la tapa (7) se dispone apoyada sobre la superficie de fondo (5c) de la carcasa (5).6. Electric radiating light according to the preceding claim, characterized in that the cover (7) is arranged resting on the bottom surface (5c) of the housing (5). 7. Foco radiante eléctrico según la reivindicación 5, caracterizado porque la tapa (7) está integrada en la superficie de fondo (5c) de la carcasa (5).7. Electric radiating light according to claim 5, characterized in that the cover (7) is integrated in the bottom surface (5c) of the housing (5). 8. Foco radiante eléctrico según cualquiera de las reivindicaciones anteriores, caracterizado porque la carcasa (5) está hecha de un material metálico.8. Electric radiating light according to any of the preceding claims, characterized in that the housing (5) is made of a metallic material. 9. Foco radiante eléctrico según cualquiera de las reivindicaciones 1 a 7, caracterizado porque la carcasa (5) está hecha de un material plástico.9. Electric radiating light according to any one of claims 1 to 7, characterized in that the housing (5) is made of a plastic material. 10. Foco radiante eléctrico según la reivindicación anterior, caracterizado porque la carcasa (5) está hecha de un material que tiene una temperatura de fusión sustancialmente superior a, aproximadamente, 300ºC.10. Electric radiating light according to the preceding claim, characterized in that the housing (5) is made of a material having a melting temperature substantially greater than about 300 ° C. 11. Foco radiante eléctrico según cualquiera de las reivindicaciones 1 a 8, caracterizado porque la tapa (7) está hecha de un material plástico.11. Electric radiating light according to any one of claims 1 to 8, characterized in that the cover (7) is made of a plastic material. 12. Foco radiante eléctrico según la reivindicación anterior, caracterizado porque la tapa (7) está hecha de un material que tiene una temperatura de fusión sustancialmente superior a, aproximadamente, 300ºC.12. Electric radiating light according to the preceding claim, characterized in that the cover (7) is made of a material having a melting temperature substantially greater than about 300 ° C. 13. Foco radiante eléctrico según cualquiera de las reivindicaciones 9 ó 10, caracterizado porque la tapa (7) está hecha de un material metálico.13. Electric radiating light according to any of claims 9 or 10, characterized in that the cover (7) is made of a metallic material. 14. Foco radiante eléctrico según la reivindicación anterior, caracterizado porque la carcasa (5) está inyectada sobre la tapa (7).14. Electric radiating light according to the preceding claim, characterized in that the housing (5) is injected onto the cover (7).
ES201030209U 2010-03-10 2010-03-10 ELECTRIC RADIANT FOCUS ADAPTED TO A COOKING PLATE Expired - Fee Related ES1072062Y (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES201030209U ES1072062Y (en) 2010-03-10 2010-03-10 ELECTRIC RADIANT FOCUS ADAPTED TO A COOKING PLATE
EP11382060A EP2365729A1 (en) 2010-03-10 2011-03-08 Electrical radiant heater adapted to a cooking hob plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201030209U ES1072062Y (en) 2010-03-10 2010-03-10 ELECTRIC RADIANT FOCUS ADAPTED TO A COOKING PLATE

Publications (2)

Publication Number Publication Date
ES1072062U true ES1072062U (en) 2010-05-13
ES1072062Y ES1072062Y (en) 2010-08-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
ES201030209U Expired - Fee Related ES1072062Y (en) 2010-03-10 2010-03-10 ELECTRIC RADIANT FOCUS ADAPTED TO A COOKING PLATE

Country Status (2)

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EP (1) EP2365729A1 (en)
ES (1) ES1072062Y (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915529C3 (en) * 1979-04-18 1981-10-29 Gebrüder Thielmann AG KG, 6342 Haiger Built-in hob with a hob made of glass ceramic material
EP0234373A3 (en) * 1986-02-26 1988-03-02 E.G.O. Elektro-Geräte Blanc u. Fischer Cooking unit with radiant heating element
DE3635345A1 (en) * 1986-10-17 1988-04-28 Ego Elektro Blanc & Fischer BEAM RADIATOR
GB2348094A (en) 1999-01-22 2000-09-20 Ceramaspeed Ltd Reinforcing radiant heater support dish
DE102006045451A1 (en) 2006-09-19 2008-03-27 E.G.O. Elektro-Gerätebau GmbH Heat-insulating element for electric radiant heating elements, e.g. hot plates or rings, comprises pressed or sintered material containing pyrogenic silica and treated ash from burnt biological material, e.g. rice husks

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Publication number Publication date
ES1072062Y (en) 2010-08-09
EP2365729A1 (en) 2011-09-14

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