WO2023117505A1 - Système de cuisson - Google Patents

Système de cuisson Download PDF

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Publication number
WO2023117505A1
WO2023117505A1 PCT/EP2022/085257 EP2022085257W WO2023117505A1 WO 2023117505 A1 WO2023117505 A1 WO 2023117505A1 EP 2022085257 W EP2022085257 W EP 2022085257W WO 2023117505 A1 WO2023117505 A1 WO 2023117505A1
Authority
WO
WIPO (PCT)
Prior art keywords
radiation
cooking system
mounting plate
infrared
visible light
Prior art date
Application number
PCT/EP2022/085257
Other languages
German (de)
English (en)
Inventor
Fernando Sanz Serrano
Damaso Martin Gomez
Diana Lascorz Pascual
Pilar Perez Cabeza
Beatriz Arenas Jimenez
Noelia Borque Marquina
Francisco Villuendas Lopez
Patricia GOMEZ BACHILLER
Javier Lasobras Bernad
Original Assignee
BSH Hausgeräte 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 Hausgeräte GmbH filed Critical BSH Hausgeräte GmbH
Publication of WO2023117505A1 publication Critical patent/WO2023117505A1/fr

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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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/10—Tops, e.g. hot plates; Rings
    • 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 cooking system according to the preamble of claim 1.
  • Cooking systems with sensors for determining the temperature of cookware placed on a support plate are already known from the prior art.
  • the sensors are arranged below the mounting plate and are designed as NTC temperature sensors.
  • Other known cooking systems use infrared temperature sensors to determine the temperature, with infrared radiation emitted by a cooking utensil being guided through a radiation guide element integrated in the support plate to an infrared temperature sensor arranged below the support plate. This has so far had the disadvantage that measurement results can be falsified, since infrared radiation from the heated mounting plate can also penetrate into the radiation guide element and/or the infrared temperature sensor is exposed to additional infrared radiation from a nearby heating element.
  • the radiation guide element in such known cooking systems is sometimes also used to illuminate an area of the surface of the mounting plate, for example to be able to show users a cooking area by directing visible light from a light source below the mounting plate through the radiation guide element to the top.
  • the radiation guide element is glued into the mounting plate, which means that the adhesive used and/or the material of the mounting plate becomes visible when the radiation guide element is illuminated, resulting in an uneven light and thus an unfavorable appearance.
  • the object of the invention consists in particular, but not limited to, advantageously further developing a generic system.
  • the object is achieved according to the invention by the features of claim 1, while advantageous refinements and developments of the invention can be found in the dependent claims.
  • the invention is based on a cooking system, in particular an induction cooking system, with a mounting plate and a radiation-guiding element which is suitable for electromagnetic Radiation in the spectral ranges of infrared radiation and visible light is permeable and which extends in a mounted state at least partially along a direction perpendicular to a main extension plane of the mounting plate from a top to a bottom of the mounting plate.
  • the cooking system has a radiation adjustment unit which is intended to influence the electromagnetic radiation in the radiation-guiding element.
  • Such a configuration can advantageously provide a cooking system with improved properties in terms of measurement accuracy.
  • Radiation conduction within the radiation-guiding element can advantageously be improved, with interference being able to be reduced in particular during temperature measurements using infrared temperature sensors.
  • a particularly reliable cooking system can thus be provided.
  • an improved light appearance of visible light which is directed to illuminate a region of the mounting plate from a light source arranged below the mounting plate and through the radiation guide element to the upper side of the mounting plate, can advantageously be achieved.
  • uniform and diffuse illumination can be made possible.
  • a cooking system with a high degree of aesthetics can thus advantageously be provided.
  • a “cooking system” should be understood to mean a system which has at least the mounting plate, at least the radiation guide element and at least the radiation adjustment unit, and which could also have at least one further unit, for example a sensor unit and/or a lighting unit and/or a heating unit .
  • the cooking system can be designed at least as a part, in particular as a subassembly, of a hob, in particular an induction hob, whereby in particular accessory units for the hob can also be included in the cooking system, such as a sensor unit for externally measuring the temperature of a cooking utensil and /or a food to be cooked.
  • the cooking system could have at least one hob object, which in particular could be a subassembly of a hob.
  • the hob object could, for example, have at least one control unit and/or at least one user interface and/or at least one Housing unit and/or at least one heating unit and/or at least one exhaust fan unit and/or at least one heating unit control electronics.
  • a “mounting plate” should be understood to mean at least one, in particular plate-like, unit which is provided in at least one operating state for setting up at least one cooking utensil and/or for placing at least one item to be cooked for the purpose of heating.
  • the mounting plate could be designed as a hob plate.
  • the mounting plate designed as a hob plate could, in particular, form at least part of an outer hob housing and, in particular, together with at least one outer housing unit, with which the mounting plate designed as a hob plate could be connected in at least one assembled state, at least to a large extent form the outer hob housing.
  • the mounting plate is preferably designed as a worktop or as a partial area of at least one worktop, in particular at least one kitchen worktop, in particular of the cooking system.
  • the cooking system can be part of an invisible hob.
  • the installation plate could, for example, be made at least to a large extent of glass and/or glass ceramic and/or neolith and/or dekton and/or wood and/or marble and/or stone, in particular natural stone, and/or laminate and/or made of metal and/or plastic and/or ceramic.
  • a “radiation-guiding element” should be understood to mean an element which is permeable both to infrared radiation, in particular infrared radiation with a wavelength range between 780 nm and 7,000 nm, and for visible light with a wavelength range between 380 nm and 800 nm and which is intended for this purpose is to transmit visible light and/or infrared radiation at least partially along the normal direction of the erection board, from the top to the underside of the erection board and/or from the underside to the top of the erection board.
  • the radiation guide element preferably has at least essentially the shape of a cylinder with an oval, preferably circular, cross section perpendicular to the normal direction.
  • the radiation-guiding element could have a shape other than a cylinder, with a polygonal, for example rectangular or triangular, cross-section perpendicular to the normal direction.
  • the radiation-guiding element is preferably formed at least to a large extent, particularly preferably entirely, from quartz.
  • the radiation-guiding element can also be made of sapphire at least to a large extent, preferably completely.
  • the term "at least a large part” is to be understood as meaning a mole fraction of at least 55%, advantageously at least 65%, preferably at least 75%, particularly preferably at least 85% and particularly advantageously at least 95%.
  • the cooking system can have a plurality of radiation-guiding elements which, in the assembled state, can be arranged offset relative to one another with respect to the main plane of extension of the mounting plate.
  • a “main extension plane” of a structural unit is to be understood as a plane which is parallel to a largest side surface of an imaginary cuboid which just completely encloses the structural unit and in particular runs through the center point of the cuboid.
  • a “normal direction” of an object should be understood to mean a direction that runs perpendicular to the main plane of extension of the object.
  • location designations such as “below” or “above” refer to an assembled state of the installation plate, unless this is explicitly described otherwise.
  • the radiation adjustment unit is intended to influence the electromagnetic radiation in the radiation-guiding element.
  • An influencing of the electromagnetic radiation by the radiation adjustment unit comprises at least a change in an at least temporary characteristic value of the electromagnetic radiation before and/or during entry of the electromagnetic radiation into the radiation guide element and/or during passage of the electromagnetic radiation through the radiation guide element and/or upon exit the electromagnetic radiation from the radiation guide element.
  • the influencing of the electromagnetic radiation by the radiation adjustment unit can be a change in direction, in particular an angle of incidence into the radiation guide element and/or an angle of emergence from the radiation guide element and/or a wavelength range and/or a portion of the electromagnetic spectrum and/or a radiation intensity and/or or a degree of polarization and/or a propagation speed of the electromagnetic radiation.
  • the electromagnetic radiation can be influenced, for example, by scattering and/or diffraction and/or refraction and/or birefringence and/or reflection and/or absorption and/or slowing down and/or accelerating the electromagnetic radiation in at least one wavelength range of the electromagnetic spectrum and at least one Element of the radiation adjustment unit and/or by optical activity of the at least one element of the radiation adjustment unit and/or by interaction of photons of the electromagnetic radiation with matter of the at least one element of the radiation adjustment unit, for example due to the photoelectric effect, and/or by interactions with at least one by the Radiation adjustment unit generated electromagnetic field, such as electromagnetic interference, take place.
  • the cooking system preferably includes a sensor unit for detecting at least one sensor parameter.
  • a “sensor unit” is to be understood as a unit that is intended to record at least one parameter and/or one physical property, with the recording being active, such as in particular by generating and emitting an optical and/or electrical measurement signal, and /or can take place passively, in particular by detecting changes in the properties of a sensor component.
  • the sensor unit preferably has at least one infrared temperature sensor, which could be designed, for example, as a photoelectric sensor, in particular as a photodiode, or as a pyroelectric infrared sensor.
  • the infrared temperature sensor of the sensor unit is preferably arranged below the mounting plate and offset along the normal direction of the mounting plate to the radiation guide element.
  • the infrared temperature sensor is intended to detect a temperature of a cooking utensil placed on the support plate in a region above the radiation conducting element using infrared radiation, which passes through the radiation conducting element starting from the cooking utensil.
  • the cooking system preferably has a lighting unit.
  • the lighting unit has at least one lighting element, for example an LED, in particular an RGB LED or the like.
  • the lighting element is preferably arranged offset below the mounting plate and along the normal direction of the mounting plate to the radiating element.
  • the lighting element is intended to provide visible light and to couple this into the radiation-guiding element.
  • the visible light provided by the at least one lighting element of the lighting unit in an operating state and coupled into the radiation-guiding element can be transported by means of the radiation-guiding element from the bottom to the top of the mounting plate and thus advantageously enable illumination of at least a close-up area of the radiation-guiding element on the top of the mounting plate.
  • Provided is intended to mean specifically designed and/or equipped.
  • the fact that an object is provided for a specific function should be understood to mean that the object fulfills and/or executes this specific function in at least one application and/or operating state.
  • the radiation adjustment unit has a casing element which surrounds the radiation guide element along an outer surface facing the mounting plate.
  • the outer surface of the radiation guide element facing the mounting plate is at an angle, preferably perpendicular, to the main plane of extent of the mounting plate aligned.
  • the radiation guide element preferably has the shape of a cylinder, so that the outer surface facing the mounting plate corresponds to a lateral surface of the cylinder.
  • Other outer surfaces of the radiation-guiding element, which are aligned parallel to the main extension plane in the installed state, in particular cover surfaces of the cylindrically designed radiation-guiding element, are free of the encasing element.
  • the cladding element has a degree of reflection of at least 0.7 for visible light.
  • the sheathing element advantageously has a degree of reflection of at least 0.75, particularly advantageously a degree of reflection of at least 0.8, preferably a degree of reflection of at least 0.85 and particularly preferably a degree of reflection of at least 0.9.
  • the encasing element has aluminum.
  • a sheathing element with a high degree of reflection for visible light and a low degree of emission for infrared radiation can advantageously be provided, which is at the same time simple and inexpensive to produce.
  • the encasing element could have other components in addition to aluminum.
  • the encasing element could be formed from an aluminum alloy or from ceramic materials containing aluminum.
  • the encasing element is preferably made entirely of aluminum.
  • the encasing element could also have other materials with a high degree of reflection for visible light and a low degree of emission for infrared radiation, for example chromium and/or a chromium alloy, and/or be formed from one or more such materials.
  • the encasing element could be connected to the mounting plate, for example in a form-fitting or material-fitting manner. In an advantageous embodiment, however, it is proposed that the encasing element be connected to the radiation-guiding element, in particular in a materially bonded manner. A particularly simple and efficient production can advantageously be made possible by such a configuration.
  • the sheathing element could, for example, positively and / or non-positively with the Be connected radiation guide.
  • the encasing element could be designed as a film and wrapped around the radiation-guiding element.
  • the encasing element is preferably bonded to the radiation-guiding element.
  • the encasing element could be glued to the radiation guide element, for example by means of transparent silicone.
  • the encasing element is in the form of a paint and/or a lacquer and/or the like and applied to the radiation-guiding element.
  • the sheathing element is preferably designed as a coating and by a coating method, for example by a screen printing method and/or by spin coating and/or by dip coating (dipcoating) and/or by a sol-gel method and/or by spraying and/or by an inkjet printing method and/or by a chemical gas deposition method (CVD: Chemical Vapor Deposition), applied to the radiation-guiding element.
  • CVD Chemical Vapor Deposition
  • the encasing element designed as a coating is particularly preferably applied to the radiation-guiding element by means of a physical gas deposition process (PVD: Physical Vapor Deposition), in particular by means of sputter deposition.
  • PVD Physical Vapor Deposition
  • the encasing element can advantageously be designed as a particularly thin coating, and material efficiency can thus be improved.
  • the encasing element is provided to reduce transmission of infrared radiation from the mounting plate to the radiation-guiding element. This can advantageously improve the accuracy of temperature measurements, in particular by means of the infrared temperature sensor of the sensor unit.
  • the encasing element could be provided, for example, to partially or completely reflect infrared radiation in order to reduce the transfer of infrared radiation from the set-up plate to the radiation-guiding element. It is also conceivable that the encasing element is intended to absorb infrared radiation and to emit it again to a large extent, at least 75%, in another wavelength range outside of a wavelength range of infrared radiation.
  • the sheathing element has an emissivity of between 0 and 0.5 for infrared radiation in the near-infrared range.
  • the sheathing element advantageously has an emissivity of between 0 and 0.45, particularly advantageously between 0 and 0.40, preferably between 0 and 0.35 and particularly preferably between 0 and 0.30.
  • the near-infrared range includes infrared radiation with a wavelength between 780 nm and 3,000 nm.
  • the emissivity indicates how much radiation an object emits in a specific wavelength range in relation to an ideal thermal radiator with an emissivity of 1.0.
  • the radiation adjustment unit has an enclosing element which is arranged below the mounting plate and adjoins the radiation guide element along the normal direction.
  • the enclosing element could directly adjoin the radiation guide element along the normal direction and be directly connected to it.
  • the enclosing element is arranged at a distance from the radiation guide element along the normal direction and is not connected to it or only indirectly connected to it via a further element, for example via a washer or the like.
  • the enclosing element is provided for bundling visible light which is intended to be coupled into the radiation-guiding element by the lighting element.
  • the border element is provided for the purpose of feeding infrared radiation, which is emitted by a cooking utensil placed above the support plate, to the infrared temperature sensor of the sensor unit.
  • the edging element be designed in the form of a sleeve.
  • the edging element can advantageously be produced with simple technical means and in a particularly material-efficient and therefore cost-effective manner.
  • the sleeve-shaped enclosing element has a continuous recess which extends along a main plane of extent of the enclosing element and which, when viewed perpendicularly to the main plane of extent, preferably has an oval, in particular circular, cross section.
  • the sleeve-shaped edging element has one of Recess facing, in particular radially inwardly directed inner surface and facing away from the recess, in particular radially outwardly directed, outer surface.
  • the inner surface of the rim member is designed to reflect electromagnetic radiation.
  • the inner surface of the enclosing element is intended in particular to focus infrared radiation emerging from the radiation-guiding element and feed it to the infrared temperature sensor of the sensor unit and to focus visible light emitted by the lighting element of the lighting unit and feed it to the radiation-guiding element.
  • the outer surface of the bordering element is intended to reflect electromagnetic radiation and to at least reduce, preferably completely prevent, penetration of electromagnetic radiation from the outside, for example infrared radiation emitted by a heating element, into the recess.
  • the bordering element be designed in the form of a hollow cylinder and have a constant inside diameter.
  • the inner diameter of the enclosing element which is designed in the form of a hollow cylinder, preferably corresponds at least essentially to a diameter of the radiation-guiding element.
  • “at least essentially” is to be understood as meaning that a deviation from a specified value is less than 10%, in particular less than 5%, advantageously less than 4%, particularly advantageously less than 3%, preferably less than 2% and particularly preferably less than 1% of the specified value.
  • the edging element has a conically tapering section.
  • a radiation line below the mounting plate can advantageously be further improved.
  • a targeted coupling of visible light from the lighting element of the lighting unit into the radiation-guiding element can be achieved, with the conically tapering section advantageously preventing the occurrence of unilluminated areas within the radiation-guiding element in the viewing direction along the normal direction from the top the mounting plate can be prevented.
  • the conically tapering section preferably has a largest internal diameter which exceeds the diameter of the radiation-guiding element by at least 10%. In this way, a reliable radiation conduction underneath the mounting plate can advantageously also be ensured in the event of the edging element slipping during assembly and/or due to production-related tolerances.
  • a smallest inner diameter of the conically tapering section preferably corresponds at least essentially to the diameter of the radiation-guiding element.
  • the radiation adjustment unit preferably has at least one washer which is connected to the radiation-guiding element on the underside.
  • the washer could be glued to the radiation guide element, for example.
  • the washer is preferably connected in a form-fitting manner to the radiation-guiding element and, in the assembled state, encompasses it along its circumferential direction.
  • an upper edge of the tapered portion of the skirt member abuts an end face of the washer.
  • the largest inside diameter of the conically tapering section to essentially correspond to an outside diameter of the washer and for the edging element to positively surround the washer in the assembled state in the area of the largest inside diameter of the conically tapering section.
  • the washer and the rim member are made of the same material.
  • the enclosing element for visible light is designed to be at least essentially reflective on both sides. Such a configuration can advantageously improve the efficiency of the radiation line even further.
  • both sides should be understood to mean that both the inner surface and the outer surface of the enclosing element are designed to be at least essentially reflective for visible light.
  • At least essentially reflective is to be understood as meaning the property of a surface to reflect incident electromagnetic radiation in a specified spectral range to a proportion that exceeds the sum of the proportions that are absorbed and transmitted through the surface.
  • both the inner surface and the outer surface of the enclosing element for visible light which is at least essentially reflective on both sides for visible light, have a Degree of reflection of at least 0.75, particularly advantageously a degree of reflection of at least 0.8, preferably a degree of reflection of at least 0.85 and particularly preferably a degree of reflection of at least 0.9.
  • the enclosing element for infrared radiation in the near-infrared range is preferably designed to be at least essentially reflective on both sides.
  • both the inner surface and the outer surface of the framing element which is at least essentially reflective on both sides for infrared radiation in the near-infrared range, have a degree of reflection for infrared radiation in the near-infrared range of at least 0.55, particularly advantageously a degree of reflection of at least 0.6, preferably a degree of reflection of at least 0.7 and more preferably a reflectance of at least 0.75.
  • the border element has sintered polytetrafluoroethylene.
  • Such a configuration can advantageously provide a bordering element with a particularly high and uniform degree of reflection both for visible light and for infrared radiation.
  • the bordering element is preferably made entirely of sintered polytetrafluoroethylene, which is available in particular under the trade name Spektralon®.
  • the enclosing element could also be other materials with a high reflectance for visible light and a low emissivity for infrared radiation, for example aluminum or ceramic composite materials based on alumina, which are available under the trade name AluWhite98, or other materials with a high reflectance for visible light and a low emissivity for infrared radiation, for example correspondingly coated plastics or the like, and/or be formed from one or more such materials.
  • the cooking system should not be limited to the application and embodiment described above.
  • the cooking system can have a number of individual elements, components and units that differs from the number specified here in order to fulfill a function described herein.
  • FIG. 1 shows a hob with a cooking system, comprising a mounting plate, a radiation guide element and a radiation adjustment unit, in a schematic plan view,
  • FIG. 2 shows the cooking system in a schematic sectional view through the mounting plate, the radiation guide element and a casing element of the radiation adjustment unit
  • FIG. 3 shows the cooking system in a schematic view with a border element of the radiation adjustment unit
  • FIG. 4 shows a further exemplary embodiment of a cooking system with a mounting plate, a radiation guide element and a radiation adjustment unit in a schematic view.
  • FIG. 1 shows a hob 50a in a schematic plan view.
  • the hob 50a is designed as an induction hob.
  • the hob 50a has a cooking system 10a.
  • the cooking system 10a has a mounting plate 12a.
  • the mounting plate 12a is designed as a hob plate 36a of the hob 50a.
  • the set-up plate 12a is provided for setting up cookware (not shown).
  • the hob 50a has a heating element 38a.
  • the heating element 38a is designed as an induction heating element.
  • the heating element 38a is provided for heating cookware (not shown) placed in a heating area 40a on an upper side 20a of the mounting plate 12a.
  • the cooking system 10a has a radiation-guiding element 14a.
  • the radiation-guiding element 14a In a mounted state, the radiation-guiding element 14a extends at least partially along a normal direction 18a perpendicular to a main extension plane 16a of the mounting plate 12a (cf. Figure 2) from the upper side 20a to an underside 22a (cf. Figure 2) of the mounting plate 12a.
  • the radiation-guiding element 14a is made of quartz.
  • the radiation-guiding element 14a is transparent to electromagnetic radiation (not shown) in the spectral ranges of infrared radiation and visible light.
  • the cooking system 10a has a radiation adjustment unit 24a.
  • the radiation adjustment unit 24a is intended to influence the electromagnetic radiation in the radiation-guiding element 14a.
  • FIG. 2 shows the cooking system 10a in a schematic sectional view through the mounting plate 12a, the radiation-guiding element 14a and a casing element 26a of the radiation adjustment unit 24a.
  • the encasing element 26a surrounds the radiation-guiding element 14a along an outer surface 28a facing the mounting plate 12a.
  • the cooking system 10a has a lighting unit 42a.
  • the lighting unit 42a In the installed state, the lighting unit 42a is arranged offset along the normal direction 18a to the radiation-guiding element 14a.
  • the lighting unit 42a couples visible light into the radiation-guiding element 14a.
  • the lighting unit 42a has at least one lighting element 44a.
  • the lighting element 44a is in the form of an RGB LED.
  • the lighting element 44a provides visible light for coupling into the radiation-guiding element 14a.
  • the visible light is transported from the underside 22a to the upper side 20a of the mounting plate 12a by means of the radiation-guiding element 14a.
  • the visible light When passing through the radiation-guiding element 14a, the visible light is reflected on the cladding element 26a of the radiation adjustment unit 24a.
  • the cladding element 26a has a reflectance of at least 0.7.
  • the cladding member 26a has a reflectance of at least 0.8 for visible light.
  • the shroud member 26a includes aluminum.
  • the encasing element 26a is made of aluminum.
  • the cladding element 26a is connected to the radiation-guiding element 14a.
  • the sheathing element 26a is integral with the Radiation guide element 14a connected.
  • the encasing element 26a is in the form of a coating, specifically an aluminum coating, which is applied to the outer surface 28a of the radiation-guiding element 14a by means of physical vapor deposition, for example by means of sputter deposition.
  • the cooking system 10a has a sensor unit 46a, which is arranged offset along the normal direction 18a with respect to the radiation-guiding element 14a, for detecting at least one sensor parameter.
  • the sensor unit 46a has an infrared temperature sensor 48a.
  • the infrared temperature sensor 48a is constructed as a photoelectric sensor, namely a photodiode.
  • the infrared temperature sensor 48a detects an intensity of infrared radiation, which is emitted by a cooking utensil (not shown) placed on the upper side 20a of the mounting plate 12a and is conducted to the infrared temperature sensor 48a by the radiation guide element 14a, and uses this to determine the temperature of the cookware.
  • the encasing element 26a is provided to reduce transmission of infrared radiation from the installation plate 12a to the radiation-guiding element 14a.
  • the encasing element 26a has an emissivity of between 0 and 0.5 for infrared radiation in the near-infrared range. In the present case, the encasing element 26a has an emissivity of between 0 and 0.3 for infrared radiation in the near-infrared range.
  • Infrared radiation which is emitted by the mounting plate 12a in the operating state of the cooking system 10a, for example due to heating of the heating area 40a (cf. FIG. 1) by a cooking utensil (not shown), is emitted only to a very small extent due to the casing element 26a Share in the radiation guide element 14a, whereby measurement errors of the infrared temperature sensor 48a are reduced.
  • FIG. 3 shows the cooking system 10a in a schematic perspective view.
  • FIG. 3 shows a border element 30a of the radiation adjustment unit 24a.
  • the enclosure member 30a is arranged below the mounting plate 12a and connects to the radiation guide element 14a along the normal direction 18a.
  • the border element 30a is sleeve-shaped.
  • the border element 30a is cylindrical and has a constant inner diameter 32a.
  • the bordering element 30a extends from a lower edge 52a of the mounting plate 12a to the lighting element 44a of the lighting unit 42a and the infrared temperature sensor 48a of the sensor unit 46a.
  • the enclosing element 30a is designed to be at least essentially reflective on both sides for visible light. Visible light, which is fed into the radiation-guiding element 14a from the lighting element 44a in the operating state, is reflected at an inner wall 56a of the enclosing element 30a to a proportion of at least 75%. Infrared radiation, which is emitted by the heating element 38a of the cooktop 50a in the operating state, is reflected by an outer wall 58a to a proportion of at least 55%.
  • the skirt member 30a comprises sintered polytetrafluoroethylene.
  • the rim member 30a is formed from sintered polytetrafluoroethylene.
  • the enclosing element 30a has a degree of reflection of at least 0.95 for visible light.
  • FIG. 1 A further exemplary embodiment of the invention is shown in FIG.
  • the following descriptions are essentially limited to the differences between the exemplary embodiments, with reference being made to the description of the exemplary embodiment in FIGS. 1 to 3 with regard to components, features and functions that remain the same.
  • the letter a in the reference numbers of the exemplary embodiment in FIGS. 1 to 3 has been replaced by the letter b in the reference numbers of the exemplary embodiment in FIG.
  • components with the same designation in particular with regard to components with the same reference numbers, reference can in principle also be made to the drawings and/or the description of the exemplary embodiment in FIGS.
  • FIG 4 shows another embodiment of a cooking system 10b in a schematic representation.
  • the cooking system 10b has a mounting plate 12b Radiation guide element 14b and a radiation adjustment unit 24b.
  • the cooking system 10b also has a lighting unit 44b and a sensor unit 46b.
  • the cooking system 10b differs from the cooking system 10a first of all with regard to the design of the mounting plate 12b, which, in contrast to the mounting plate 12a from the previous exemplary embodiment, is not designed as a hob plate but as a kitchen worktop 60b.
  • the cooking system 10b differs from the cooking system 10a with regard to an embodiment of an enclosure element 30b of the radiation adjustment unit 24b.
  • the border element 30b is sleeve-shaped.
  • the edging element 30b has a conically tapering section 34b.
  • the enclosing element 30b In a region close to the radiation-guiding element 14b, the enclosing element 30b has an inner diameter 32b which exceeds a diameter 64b of the radiation-guiding element 14b.
  • the conically tapering section 34b at the end of which the enclosing element 30b has a further inner diameter 54b, extends starting from the close-up area, with the further inner diameter 54b essentially corresponding to a diameter of the radiation-guiding element 14b. From the end of the tapering section 34b up to an illumination element 44b of an illumination unit 42b and an infrared temperature sensor 48b of the sensor unit 46b, the further inside diameter 54b remains essentially constant.
  • the enclosing element 30b is made of sintered polytetrafluoroethylene and is accordingly at least essentially reflective on both sides for visible light.
  • the radiation adjustment unit 24b has a washer 62b.
  • the washer 62b surrounds the radiation-guiding element 14b.
  • the tapered portion 34b of the skirt member 30b abuts the washer 62b in the region of the inner diameter 32b.
  • Washer 62b is made of the same material as skirt member 30b, here sintered polytetrafluoroethylene.
  • the radiation adjustment unit 24b also has a casing element 26b, which surrounds the radiation guide element 14b along an outer surface 28b facing the installation plate 12b.
  • the encasing element 26b is essentially identical to the encasing element 26a of the previous exemplary embodiment, so that reference can be made to the above description of FIGS. 1 to 3 in this respect.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Stoves And Ranges (AREA)

Abstract

L'invention concerne un système de cuisson (10a ; 10b), en particulier un système de cuisson à induction, comprenant une plaque de support (12a ; 12b) et un élément de guidage de rayonnement (14a ; 14b) qui est transparent pour un rayonnement électromagnétique dans la plage spectrale de rayonnement infrarouge et de lumière visible et qui, lorsqu'il est installé, s'étend depuis un côté supérieur (20a ; 20b) à un côté inférieur (22a ; 22b) de la plaque de support (12a ; 12b) au moins partiellement dans une direction normale (18a ; 18b) qui est perpendiculaire à un plan d'extension principal (16a ; 16b) de la plaque de support (12a ; 12b). Afin de développer en outre de manière avantageuse un système générique, le système de cuisson (10a ; 10b) présente une unité de réglage de rayonnement (24a ; 24b) destinée à influer sur le rayonnement électromagnétique dans l'élément de guidage de rayonnement (14a ; 14b).
PCT/EP2022/085257 2021-12-20 2022-12-09 Système de cuisson WO2023117505A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4998128B2 (ja) * 2007-07-26 2012-08-15 パナソニック株式会社 誘導加熱調理器およびその誘導加熱調理器用鍋
DE102013108648A1 (de) * 2013-08-09 2015-02-12 Miele & Cie. Kg Kocheinrichtung und Verfahren zum Betreiben der Kocheinrichtung
WO2022058228A1 (fr) * 2020-09-18 2022-03-24 BSH Hausgeräte GmbH Dispositif de plaque de cuisson à induction et procédé de montage d'un dispositif de plaque de cuisson à induction
WO2022058226A2 (fr) * 2020-09-18 2022-03-24 BSH Hausgeräte GmbH Système de cuisson

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4998128B2 (ja) * 2007-07-26 2012-08-15 パナソニック株式会社 誘導加熱調理器およびその誘導加熱調理器用鍋
DE102013108648A1 (de) * 2013-08-09 2015-02-12 Miele & Cie. Kg Kocheinrichtung und Verfahren zum Betreiben der Kocheinrichtung
WO2022058228A1 (fr) * 2020-09-18 2022-03-24 BSH Hausgeräte GmbH Dispositif de plaque de cuisson à induction et procédé de montage d'un dispositif de plaque de cuisson à induction
WO2022058226A2 (fr) * 2020-09-18 2022-03-24 BSH Hausgeräte GmbH Système de cuisson

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