EP4098079B1 - Dispositif de plaque de cuisson - Google Patents

Dispositif de plaque de cuisson

Info

Publication number
EP4098079B1
EP4098079B1 EP21700128.8A EP21700128A EP4098079B1 EP 4098079 B1 EP4098079 B1 EP 4098079B1 EP 21700128 A EP21700128 A EP 21700128A EP 4098079 B1 EP4098079 B1 EP 4098079B1
Authority
EP
European Patent Office
Prior art keywords
light
cooktop
optical waveguide
hob
base body
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.)
Active
Application number
EP21700128.8A
Other languages
German (de)
English (en)
Other versions
EP4098079A1 (fr
Inventor
Jesús CEAMANOS GAYA
Ana Elduque Viñuales
Patricia GOMEZ BACHILLER
Javier Lasobras Bernad
Damaso Martin Gomez
Marta OSTA LOMBARDO
Pilar Perez Cabeza
Fabian Puls
Julio Rivera Peman
Jesús Ricardo Ruiz Gracia
Ander Villate Robles
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete 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 BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP4098079A1 publication Critical patent/EP4098079A1/fr
Application granted granted Critical
Publication of EP4098079B1 publication Critical patent/EP4098079B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12—Cooking devices
    • H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
    • H05B6/1218—Cooking devices induction cooking plates or the like and devices to be used in combination with them with arrangements using lights for heating zone state indication

Definitions

  • the invention relates to a cooktop device according to the preamble of claim 1.
  • the object of the invention is, in particular but not limited to, providing a generic device with improved design features. This object is achieved according to the invention by the features of claim 1, while advantageous embodiments and further developments of the invention can be found in the dependent claims.
  • the invention relates to a hob device, in particular an induction hob device, with at least one hob plate, with at least one optical waveguide unit arranged on an underside of the hob plate, which has at least one optical waveguide for a transmission of light, which has a base body, and at least one light emission element, which is provided to define a light emission surface for the emission of light from the optical waveguide.
  • the light emission element be arranged, preferably completely, on one side of the optical waveguide facing the hob plate.
  • This design opens up new design possibilities for cooktop lighting. Specifically, it allows for the use of different optical fibers of the same shape with varying light-emitting surfaces. This can advantageously improve the aesthetics of the lighting on a cooktop that incorporates the hob unit.
  • cooktop device in particular “induction cooktop device” is intended to refer in particular to at least one part, in particular a sub-assembly, of a
  • cooking surface is understood to mean a cooktop, which may also include accessory units for the cooktop, such as a sensor unit for externally measuring the temperature of cookware and/or food being cooked.
  • the cooktop may be designed as a radiant cooktop, a resistance heating cooktop, and/or a gas cooktop.
  • the cooktop is designed as an induction cooktop.
  • the cooktop device, especially the induction cooktop device may also comprise the entire cooktop.
  • the cooktop device has at least one light source unit for providing light.
  • a "light source unit” is understood to be, in particular, a unit that has at least one light source and that provides light, especially visible light, in at least one operating state, particularly by means of the light source.
  • the light source unit has at least two, in particular at least four, advantageously at least eight, particularly advantageously at least twelve, and preferably a plurality of light sources. It is conceivable that exactly one light source is assigned to the optical fiber; preferably, several light sources are assigned to the optical fiber. At least one light source of the light source unit could, for example, be designed as a display unit, preferably backlit, in particular as a matrix display unit, preferably as an LCD display, or as an OLED display.
  • At least one light source of the light source unit is designed as an LED.
  • the light sources of the light source unit form at least one RGBW LED system.
  • "Visible light” is understood to mean, in particular, electromagnetic radiation from a wavelength range of 380 nm to 780 nm.
  • one direction of the light beam provided by the light source is directed towards the optical fiber.
  • the cooktop device has at least one optical coupling unit, which includes at least one optical coupling element for coupling the light provided by the light source into the optical fiber.
  • the optical coupling element can, in particular, be designed as a light adapter known to those skilled in the art, for example, a silicone light adapter.
  • the light source in a mounted state, is arranged on one side of the optical fiber facing away from the cooktop.
  • the light source is horizontally spaced from the optical fiber; more preferably, the light source is positioned perpendicular to the cooktop.
  • the optical waveguide is arranged on the aligned side.
  • the optical waveguide in its mounted state is surrounded by at least two, and especially advantageously at least four, light sources. The direction of light emitted by the light source is aligned parallel to the cooktop.
  • optical waveguide unit shall be understood to mean, in particular, a unit comprising at least one optical waveguide and designed, in at least one operating state, to direct light, particularly visible light, advantageously the light provided by the light source, from a first region, particularly the light source, to at least one second region that is different from and/or spaced apart from the first.
  • the optical waveguide unit is designed to direct the light provided by the light source towards the cooktop for illumination of the cooktop, in particular cooking zones and/or user interface markings of the cooktop.
  • optical waveguide shall be understood to mean, in particular, an element which, in at least one operating state, transmits, in particular transports, electromagnetic radiation, in particular visible light and/or infrared radiation, advantageously both visible light and infrared radiation, in the longitudinal direction and/or along a principal plane of extension of the optical waveguide, preferably via total internal reflection within the optical waveguide.
  • longitudinal direction of an object is understood to mean, in particular, a direction that is parallel to the longest side of the smallest imaginary cuboid that just completely encloses the object.
  • the term "principal plane" of an object is understood to mean, in particular, a plane that is parallel to the largest face of the smallest imaginary cuboid that just completely encloses the object, and in particular, that passes through the center of the cuboid.
  • the optical waveguide is arranged in an assembled state between the cooktop and a heating element, in particular an inductor, of the cooktop device. It is conceivable that the optical waveguide is designed as an optical cable.
  • the optical waveguide is, in particular, formed in one piece. "In one piece” is understood to mean, in particular, at least a metallurgical bond, for example, by a coating process, an adhesive bonding process, an injection molding process, and/or another process that would appear appropriate to a person skilled in the art.
  • the optical waveguide in at least one operating state, prevents the entry and/or exit of at least electromagnetic radiation outside the optical wave exit surface in directions oriented at least substantially perpendicular to the longitudinal direction and/or at least substantially perpendicular to the principal plane of extension of the optical waveguide.
  • the optical waveguide comprises at least one base body that is at least partially, and in particular completely, transparent to light, and at least one element that is at least partially, and in particular completely, opaque to light, for example, an opaque or reflective coating of the base body.
  • the term "opaque” means, in particular, that at least one side of the element, preferably all sides of the element, is completely reflective and/or absorbing of incident light.
  • the optical waveguide could be formed entirely by a base body that is reflective, in particular totally reflective, at least with respect to light, on one side facing the cooktop and one side facing away from the cooktop.
  • the optical waveguide unit comprises a plurality of optical waveguides; preferably, the optical waveguide unit comprises exactly one optical waveguide.
  • the light emission element could be arranged at a distance from the optical fiber or detachably attached to the optical fiber, for example by a snap connection and/or locking connection and/or plug connection and/or screw connection.
  • the light wave exit surface is a partial surface of the side of the optical waveguide facing the cooktop.
  • the light exit element is plate-shaped.
  • the term "plate-shaped" refers in particular to... that the element has a thickness that corresponds to a maximum of 50%, in particular a maximum of 20%, advantageously a maximum of 10%, preferably a maximum of 5%, of a length and a width of the element.
  • the light-emitting element differs from, in particular, opaque and/or reflective, coatings and/or sheathing which are arranged on a side of the optical waveguide opposite the cooktop plate and/or along a circumference of the optical waveguide.
  • the optical waveguide could be rod-shaped and/or cubic.
  • the optical waveguide be plate-shaped.
  • the optical waveguide has at least one, preferably at least two, particularly opposite, sides with a flat, particularly smooth, surface.
  • the optical waveguide is free of concave outer surfaces.
  • the optical waveguide could be designed as an annular disk.
  • the optical waveguide is designed as a circular disk or a quadrilateral disk, particularly a rectangular disk.
  • the optical waveguide covers a partial area of the underside of the cooktop; alternatively, the optical waveguide could cover the entire underside of the cooktop. This allows, in particular, a simple and compact arrangement of the optical waveguide beneath an area of the cooktop to be illuminated.
  • the light-emitting element and the optical waveguide are formed, in particular, at least partially as a single piece, and that the light-emitting element has at least one coating on the base body.
  • the light-emitting element could have at least one recess and/or raised area and/or roughened surface on the base body.
  • the light-emitting element could be manufactured by at least one etching and/or cutting process performed on the base body.
  • the phrase "formed, at least partially, as a single piece" is understood to mean, in particular, that the light-emitting element and the optical waveguide share at least one common component.
  • the light-emitting element comprises a component, particularly a functionally important component, of the light-emitting element and the optical fiber.
  • the coating of the base body serves exclusively to guide the light.
  • the light-emitting element additionally comprises at least one further coating of the base body, which differs from the coating, particularly with respect to a specific function.
  • the light-emitting element can comprise only the further coating.
  • the coating has at least one recess, which serves to define the light-emitting surface.
  • the further coating is arranged in the recess. This allows for a further increase in installation space efficiency and simplifies the manufacture of the cooktop device.
  • at least a portion of the light-emitting element can be manufactured simultaneously with the optical fiber.
  • the cooktop device includes at least one separate diffuser element, which could, for example, be arranged between the light-emitting element and the cooktop surface and is designed to provide diffuse illumination of the cooktop surface.
  • the light-emitting element include at least one diffuser element.
  • a "diffuser element" is understood to be, in particular, an element designed to convert incident light into diffuse illumination.
  • Diffuse illumination is understood to mean, in particular, illumination whose radiant power is distributed, on average, homogeneously over a solid angle of at least ⁇ , preferably at least 3/2 ⁇ , and particularly advantageously 2 ⁇ , directly on a surface of the diffuser element facing an area to be illuminated, for a period of at least one hour. It is conceivable that the diffuser element could be conical, rod-shaped, semi-tubular, or hemispherical. Furthermore, it is conceivable that the diffuser element could be designed as a recess, a raised area, or a roughened surface of the light-emitting element or the base body.
  • the diffuser element could be designed as an adhesive element, for example, a silicone adhesive, which attaches the optical fiber to the underside of the cooktop.
  • the diffuser element is designed as a plate; particularly preferably, it is designed as a coating. This eliminates the need for additional diffuser elements.
  • the light-emitting element defines a light barrier surface to prevent light from escaping the optical waveguide.
  • a "light barrier surface” is understood to be, in particular, a surface that is opaque to light, at least in certain areas and/or at least for specific angles of incidence and/or at least for specific light frequencies, and preferably for light. It is conceivable that the light-emitting element and/or the base body has at least one recess and/or raised area and/or roughened surface that defines the light barrier surface. Preferably, the light-emitting element has at least one coating, more preferably the coating itself, that defines the light barrier surface. This allows the light-emitting surface to be defined in a particularly simple manner.
  • the light barrier surface completely absorbs the light.
  • the light-emitting element in particular the light barrier surface, be at least partially reflective.
  • the term "at least partially reflective” is understood to mean, in particular, that the light-emitting element is totally reflective at least in certain areas and/or at least for certain angles of incidence and/or at least for certain light frequencies, and preferably for the light.
  • the coating of the optical waveguide is designed as a reflective coating.
  • the optical waveguide has at least one further reflective coating on the base body on a side of the optical waveguide facing away from the cooktop, which preferably extends over the entire side of the base body facing away from the cooktop. This allows, in particular, the guidance of the light by total internal reflection on opposite sides of the optical waveguide to be achieved.
  • the light-emitting surface and the light-barrier surface are arranged separately; for example, the light-emitting surface and the light-barrier surface could be separated by at least one opaque coating on the light-emitting element.
  • the light-emitting surface and the light-barrier surface together form a continuous surface on the side of the optical waveguide facing the cooktop.
  • the continuous surface extends over the entire side of the optical waveguide facing the cooktop.
  • the light-emitting surface is defined by recesses in the light barrier surface.
  • the diffuser element of the light-emitting element extends over the entire light-emitting surface.
  • the diffuser element prefferably, the diffuser element is designed as the adhesive element and arranged in the recesses of the light barrier surface.
  • the diffuser element is designed as the additional coating and arranged in the recesses of the light barrier surface. This allows, in particular, the simple provision of diffuse illumination in predefined areas of the cooktop.
  • a simple and space-saving design of the light-emitting surface and the light barrier surface can be achieved.
  • the side of the base body facing the cooktop be at least partially translucent.
  • the term "at least partially translucent” is understood to mean, in particular, that the side of the base body facing the cooktop is at least partially transparent and/or at least for certain angles of incidence and/or at least for certain light frequencies, and preferably for light.
  • the optical waveguide has at least one reflective coating on both the side of the base body facing the cooktop and the side facing away from the cooktop. This eliminates the need for additional light-emitting elements to transmit light through the side of the base body facing the cooktop.
  • the side of the base body facing the cooktop is at least partially reflective.
  • the base body of the optical waveguide forms the entire optical waveguide.
  • the base body is totally reflective to light on both the side facing the cooktop and the side facing away from the cooktop.
  • the base body could have recesses and/or protrusions and/or roughened surfaces on both sides, which in particular extend completely across both sides. This allows for particularly simple manufacturing of the optical waveguide.
  • reflective coatings of the optical waveguide can be omitted.
  • the base body has at least a partial surface that is transparent to light.
  • this partial surface could be designed as a recess and/or raised area and/or roughened surface of the base body.
  • the cooktop device has at least one contact element which, in a mounted state, contacts the side of the optical waveguide facing the cooktop, wherein the refractive index of the light emission element differs from that of the contact element.
  • the contact element could be made of air; in particular, the contact element could be the adhesive element or the cooktop itself.
  • the side of the optical waveguide associated with the cooktop directly contacts the cooktop; more preferably, the refractive index of the light emission element differs from that of the cooktop.
  • the light emission element serves to prevent total internal reflection of the light at the side of the base body facing the cooktop.
  • the light emission element is designed as an additional coating of the base body.
  • the light emission element is designed as a diffusion element. This allows the light emission element to be produced by a simple coating of the base body.
  • the light emission element can be printed onto the base body.
  • the optical fiber unit could be attached to the underside of the cooktop by means of at least one snap connection, screw connection, plug connection, and/or locking connection.
  • the unit be glued to the underside of the cooktop.
  • the optical fiber is glued to the underside of the cooktop by means of at least one adhesive element, which could, for example, be a silicone adhesive, an adhesive tape (especially double-sided tape), or other types of adhesive known to those skilled in the art. This allows the optical fiber unit to be easily attached to standard cooktops.
  • a cooktop particularly an induction cooktop, with at least one cooking zone feature is proposed. This can significantly improve user comfort.
  • the aesthetic appeal of lighting the cooking zone feature can also be advantageous.
  • the cooktop can be improved. New lighting designs and/or functions can be particularly advantageous.
  • the cooktop device is not intended to be limited to the application and embodiment described above.
  • the cooktop device may, to achieve a functionality described herein, have a different number of individual elements, components, and units than specified herein. Further advantages will become apparent from the following description of the drawings.
  • the drawings illustrate two exemplary embodiments of the invention.
  • the drawings, the description, and the claims contain numerous features in combination.
  • FIG 1 Figure 3 shows a cooktop 32a.
  • the cooktop 32a is designed as an induction cooktop.
  • the cooktop 32a has a cooking zone 36a.
  • the cooking zone 36a is located in the center of the cooktop 32a.
  • the cooktop 32a has a cooktop device 10a, which is located in Figure 2
  • the hob device 10a serves to illuminate the cooking zone 36a.
  • the hob 32a could have further hob devices, which could in particular serve to illuminate further cooking zones of the hob 32a.
  • the cooktop device 10a includes a cooktop plate 12a.
  • the cooktop plate 12a is made of glass-ceramic. Alternatively, the cooktop plate 12a could be made of other common materials known to those skilled in the art for cooktops.
  • the cooktop device 10a includes a fiber optic unit 16a, which is located in Figure 3 This is shown in more detail in a sectional view.
  • the optical fiber unit 16a is arranged on the underside 14a of the cooktop panel 12a.
  • the optical fiber unit 16a is adhered to the underside 14a of the cooktop panel 12a.
  • the optical fiber unit 16a is adhered to the underside 14a of the cooktop panel 12a by means of an adhesive element (not shown).
  • the adhesive element is a silicone adhesive.
  • the adhesive element could be a double-sided adhesive tape or other adhesive elements known to those skilled in the art.
  • the optical fiber unit 16a has an optical fiber 18a. Alternatively or additionally, the optical fiber unit 16a could have further optical fibers.
  • the optical fiber 18a serves to transmit light.
  • the cooktop device 10a includes a light source unit 38a.
  • the light source unit 38a has four light sources 40a.
  • the light sources 40a are provided for the provision of light.
  • the light sources 40a are arranged on four pairs opposite sides of the optical waveguide 18a.
  • the light sources 40a are arranged on sides of the optical waveguide 18a that are oriented perpendicular to the cooktop surface 12a.
  • the light source unit 38a could have any other number of light sources 40a and arrangement of the light sources 40a.
  • the light sources 40a provide light.
  • Each light source 40a defines a direction of light radiation. The directions of radiation are directed towards the optical waveguide 18a.
  • the expression "the light provided by the light sources 40a" will be abbreviated to "the light” in the following.
  • the optical waveguide 18a is plate-shaped.
  • the optical waveguide 18a is disk-shaped.
  • the optical waveguide 18a has a base body 34a. One side of the base body 34a facing the cooktop 12a is transparent to light.
  • the base body 34a is completely transparent to light.
  • the optical waveguide 18a has a first reflective coating 42a.
  • the base body 34a is coated with the first reflective coating 42a.
  • the first reflective coating 42a is located on one side of the optical waveguide 18a facing away from the cooktop 12a.
  • the first reflective coating 42a extends over the entire surface of the cooktop. 12a far side of the optical waveguide 18a.
  • the first reflective coating 42a serves to guide the light within the optical waveguide 18a.
  • the optical waveguide 18a has a second reflective coating 26a.
  • the base body 34a is coated with the second reflective coating 26a.
  • the second reflective coating 26a is located on the side of the optical waveguide 18a facing the cooktop 12a.
  • the second reflective coating 26a has recesses 44a. The second reflective coating 26a serves to guide the light within the optical waveguide 18a.
  • the cooktop device 10a has a light emission element 20a.
  • the light emission element 20a defines a light emission surface for the exit of light from the optical fiber 18a.
  • the light emission element 20a is arranged on the side of the optical fiber 18a facing the cooktop surface 12a.
  • the light emission element 20a is partially integral with the optical fiber 18a.
  • the light emission element 20a is partially reflective.
  • the light emission element 20a and the optical fiber 18a jointly have the second reflective coating 26a.
  • the second reflective coating 26a serves to define the light emission surface.
  • the second reflective coating 26a defines a light barrier surface to prevent light from exiting the optical fiber 18a.
  • the recesses 44a of the second reflective coating 26a define the light emission surface.
  • the light-emitting surface and the light-barrier surface together form a continuous surface 30a on the side of the optical waveguide 18a facing the cooktop 12a.
  • the continuous surface 30a extends over the entire side of the optical waveguide 18a facing the cooktop 12a.
  • the light emission element 20a has a diffuser element 28a.
  • the diffuser element 28a is designed as a further coating of the base body 34a.
  • the diffuser element 28a is arranged in the recesses 44a of the second reflective coating 26a.
  • the diffuser element 28a serves to provide diffuse illumination of the cooktop surface 12a.
  • the Figures 4 and 5 Figure 1 shows a further embodiment of a cooktop 32b with a cooktop device 10b.
  • the cooktop device 10b has a cooktop plate 12b.
  • the cooktop device 10b has a light source unit 38b.
  • the light source unit 38b has a plurality of light sources 40b.
  • the light sources 40b are arranged in a row.
  • the light sources 40b are horizontally spaced from the cooktop plate 12b.
  • the cooktop device 10b comprises an optical fiber unit 16b.
  • the optical fiber unit 16b comprises an optical fiber 18b.
  • the optical fiber 18b is designed as a rectangular disk.
  • the optical fiber 18b extends over the entire underside 14b of the cooktop surface 12b.
  • the optical fiber 18b has a base body 34b. One side of the base body 34b facing the cooktop surface 12b is totally reflective. One side of the base body 34b facing away from the cooktop surface 12b is totally reflective.
  • the base body 34b has a first reflective coating 42b.
  • the first reflective coating 42b is arranged on a side of the base body 34b oriented perpendicular to the cooktop 12b.
  • the first reflective coating 42b serves to prevent light provided by the light source 40b from escaping through the side of the base body 34b oriented perpendicular to the cooktop 12b.
  • the cooktop device 10b has a light emission element 20b.
  • the light emission element 20b has a light-extracting coating 22b of the base body 34b.
  • the light-extracting coating 22b completely forms the light emission element 20b.
  • the light-extracting coating 22b is designed as a diffuser element 28b.
  • the cooktop device 10b has a contact element 24b.
  • the contact element 24b contacts the side of the optical fiber 18b facing the cooktop plate 12b.
  • Contact element 24b consists of air.
  • the light-extracting coating 22b has a refractive index that differs from that of air.
  • contact element 24b could be configured as an adhesive element or as the cooktop plate 12b.
  • the light-extracting coating 22b serves to prevent total internal reflection of the light on the side of the base body 34b facing the cooktop plate 12b.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Planar Illumination Modules (AREA)

Claims (11)

  1. Dispositif de champ de cuisson (10a-b), en particulier dispositif de champ de cuisson à induction, avec au moins une plaque de champ de cuisson (12a-b), avec un élément chauffant, avec au moins une unité guide de lumière (16a-b) disposée sur une face inférieure (14a-b) de la plaque de champ de cuisson (12a-b), laquelle présente au moins un guide de lumière (18a-b) pour un guidage de lumière, lequel présente un corps de base (34a-b), et au moins un élément de sortie de lumière (20a-b) prévu pour établir une surface de sortie de lumière pour une sortie de la lumière du guide de lumière (18a-b), dans lequel l'élément de sortie de lumière (20a-b) est disposé sur un côté du guide de lumière (18a-b) dirigé vers la plaque de champ de cuisson (12a-b), et dans lequel le guide de lumière (18a-b) est en forme de plaque et transmet, dans au moins un état de fonctionnement, un rayonnement électromagnétique le long d'un plan d'extension principal du guide de lumière (18a-b), caractérisé en ce que le guide de lumière (18a-b) est disposé, dans un état monté, entre la plaque de champ de cuisson (12a-b) et l'élément chauffant.
  2. Dispositif de champ de cuisson (10a-b) selon la revendication 1, caractérisé en ce que l'élément de sortie de lumière (20a-b) présente au moins un revêtement (22a, 26b, 42b) du corps de base (34a-b).
  3. Dispositif de champ de cuisson (10a-b) selon l'une des revendications précédentes, caractérisé en ce que l'élément de sortie de lumière (20a-b) présente au moins un élément diffuseur (28a-b).
  4. Dispositif de champ de cuisson (10a) selon l'une des revendications précédentes, caractérisé en ce que l'élément de sortie de lumière (20a) définit une surface de barrière lumineuse pour empêcher la lumière de sortir du guide de lumière (18a).
  5. Dispositif de champ de cuisson (10a) selon la revendication 4, caractérisé en ce que l'élément de sortie de lumière (20a) est au moins partiellement réfléchissant.
  6. Dispositif de champ de cuisson (10a) selon la revendication 4 ou 5, caractérisé en ce que la surface de sortie de lumière et la surface de barrière lumineuse forment ensemble une surface continue (30a) du côté du guide de lumière (18a) orienté vers la plaque de champ de cuisson (12a).
  7. Dispositif de champ de cuisson (10a) selon l'une des revendications précédentes, caractérisé en ce qu'un côté du corps de base (34a) orienté vers la plaque de champ de cuisson (12a) est au moins partiellement translucide.
  8. Dispositif de champ de cuisson (10b) selon l'une des revendications précédentes, caractérisé en ce qu'un côté du corps de base (34b) orienté vers la plaque de champ de cuisson (12b) est au moins partiellement réfléchissant.
  9. Dispositif de champ de cuisson (10b) selon la revendication 8, caractérisé par au moins un élément de contact (24b) qui, dans un état monté, se trouve en contact avec le côté du guide de lumière (18b) orienté vers la plaque de champ de cuisson (12b), dans lequel un indice de réfraction de l'élément de sortie de lumière (20b) diffère d'un indice de réfraction de l'élément de contact (24b).
  10. Dispositif de champ de cuisson (10a-b) selon l'une des revendications précédentes, caractérisé en ce que l'unité guide de lumière (16a-b) est collée sur la face inférieure (14a-b) de la plaque de champ de cuisson (12a-b).
  11. Champ de cuisson (32a-b) avec au moins un dispositif de champ de cuisson (10a-b) selon l'une des revendications précédentes.
EP21700128.8A 2020-01-31 2021-01-13 Dispositif de plaque de cuisson Active EP4098079B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20382060 2020-01-31
PCT/EP2021/050540 WO2021151664A1 (fr) 2020-01-31 2021-01-13 Dispositif de plaque de cuisson

Publications (2)

Publication Number Publication Date
EP4098079A1 EP4098079A1 (fr) 2022-12-07
EP4098079B1 true EP4098079B1 (fr) 2025-12-03

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EP21700128.8A Active EP4098079B1 (fr) 2020-01-31 2021-01-13 Dispositif de plaque de cuisson

Country Status (2)

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EP (1) EP4098079B1 (fr)
WO (1) WO2021151664A1 (fr)

Citations (1)

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