EP3382284A1 - Dispositif formant appareil électroménager et procédé de fabrication d'un dispositif formant appareil électroménager - Google Patents

Dispositif formant appareil électroménager et procédé de fabrication d'un dispositif formant appareil électroménager Download PDF

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Publication number
EP3382284A1
EP3382284A1 EP18162006.3A EP18162006A EP3382284A1 EP 3382284 A1 EP3382284 A1 EP 3382284A1 EP 18162006 A EP18162006 A EP 18162006A EP 3382284 A1 EP3382284 A1 EP 3382284A1
Authority
EP
European Patent Office
Prior art keywords
plate
appliance device
hob
domestic appliance
coating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18162006.3A
Other languages
German (de)
English (en)
Other versions
EP3382284B1 (fr
Inventor
Jesús CEAMANOS GAYA
Patricia GOMEZ BACHILLER
Damaso Martin Gomez
Jesús Ricardo Ruiz Gracia
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=61683662&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3382284(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP3382284A1 publication Critical patent/EP3382284A1/fr
Application granted granted Critical
Publication of EP3382284B1 publication Critical patent/EP3382284B1/fr
Active legal-status Critical Current
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Classifications

    • 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
    • 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
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
    • F24C7/083—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination on tops, hot plates
    • 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 household appliance device according to the preamble of claim 1 and to a method for producing a household appliance device according to the preamble of claim 10.
  • the prior art discloses a hob with a reflective aluminum shield plate, a hob plate, and an opaque coating attached to a bottom surface of the hob plate. If the coating has defects, the shield plate and the hob plate act as a light guide and / or cause light artifacts visible through the hob plate. In order to prevent occurrence of these light artifacts, a post-processing of the hob plate may be required.
  • the object of the invention is therefore in particular to provide a generic device with improved properties in terms of efficiency.
  • the object is solved by the characterizing features of claims 1 and 10, while advantageous embodiments and further developments of the invention can be taken from the dependent claims.
  • the invention relates to a household appliance device, in particular a hob device, with at least one shielding plate, in particular an aluminum plate, to an electromagnetic shielding at least one electronics.
  • the shielding plate is provided to substantially suppress at least one directional reflection of, in particular visible, light.
  • an efficiency advantageously a light absorption efficiency, a production efficiency and / or a component efficiency, can be increased by this refinement.
  • a defective production ratio can be advantageously reduced.
  • user comfort can be increased.
  • a "household appliance device” is to be understood as meaning, in particular, at least one part, in particular a subassembly, of a domestic appliance.
  • the household appliance can, for example, as a refrigeration appliance, in particular as a refrigerator and / or as a freezer, or be designed as a cleaning device.
  • the household appliance is designed as a cooking appliance, in particular as an oven, as a microwave, as a grill appliance and / or preferably as a hob.
  • the home appliance device may have a plurality of shielding plates. However, the household appliance device advantageously has exactly one shielding plate.
  • the household appliance device advantageously has a heating unit with at least one heating element, in particular a radiant heating element, a resistance heating element and / or preferably an induction heating element, in particular an inductor.
  • the household appliance device comprises the electronics, which is provided in particular at least for a control of the heating unit.
  • a “shielding plate” should in particular be understood to mean a planar and advantageously one-piece element which is intended to attenuate an electrical, electromagnetic and / or magnetic field in at least one region, in particular for the protection of electronics. Furthermore, the shielding plate is provided, in particular, for indirectly or directly to carry at least one heating element, in particular an inductor.
  • the shielding plate comprises a base plate and in particular may additionally have a coating. In particular, at least the baseplate, and preferably the entire shielding plate, consists at least partially, preferably at least to a large extent and particularly preferably completely, of a metal, in particular of aluminum.
  • a "planar" object is to be understood in particular as an object in which a largest side surface of a smallest, in particular imaginary, cuboid, which just completely encloses the object, by at least 50%, advantageously by at least 100%, preferably by at least 200% and particularly preferably is at least 500% larger than each side surface of the cuboid arranged perpendicular to the largest side surface.
  • the term "integral” should be understood to mean in particular at least materially bonded and / or formed with one another.
  • the material bond can be produced for example by an adhesive process, a Anspritzrata, a welding process, a soldering process and / or another process.
  • Advantageously should be made in one piece from one piece and / or in one piece be understood shaped.
  • this is a piece of a single blank, a mass and / or a casting, such as in an extrusion process, in particular a one- and / or multi-component extrusion process, and / or an injection molding process, in particular a single and / or multi-component Injection molding process, manufactured.
  • At least 55%, advantageously at least 65%, preferably at least 75%, particularly preferably at least 85%, and particularly advantageously at least 95%, is to be understood by the term "at least a large part".
  • a "directed reflection” is to be understood in particular as a reflection of light in which an incident light beam and a reflected light beam extend in a common plane perpendicular to a main extension plane of the shielding plate.
  • the reflection is formed at least as a light reflection of, in particular, visible light, advantageously with a wavelength between 380 nm and 780 nm.
  • the expression “substantially suppressing directional reflection of light” is to be understood as meaning that the section has at least 50%, advantageously at least 70%, particularly advantageously at least 85%, preferably at least 95%, preferably at least 98.5% and particularly preferably at least 99.7% of the light absorbed and / or diffusely reflected.
  • the section has a reflection coefficient of at most 50%, in particular at most 30%, advantageously at most 15%, particularly advantageously at most 5%, preferably at most 1.5 %, and more preferably of at most 0.3%.
  • the section has a coating, in particular that is different from an atmospheric oxidation layer, which at least partially effects the suppression of the directed reflection.
  • the coating has a thickness of at least 100 nm, in particular of at least 300 nm, advantageously of at least 800 nm, particularly advantageously of at least 2 ⁇ m and more preferably of at least 5 ⁇ m, and of at most 1 mm, in particular of at most 300 ⁇ m of at most 100 microns, more preferably of at most 50 microns and more preferably of at most 25 microns, on.
  • the coating is formed as an aluminum oxide layer and / or as an aluminum hydroxide layer.
  • a light absorption efficiency can be further increased.
  • manufacturing efficiency can be increased.
  • the base plate is formed as an aluminum plate.
  • the coating consists at least partially, preferably at least to a large extent and particularly preferably completely of Al 2 O 3 and / or of Al (OH) 3 .
  • the section has a surface with an average roughness of at least 1 ⁇ m, in particular of at least 5 ⁇ m, advantageously of at least 20 ⁇ m, particularly advantageously of at least 60 ⁇ m, preferably of at least 150 ⁇ m and particularly preferably of at least 300 ⁇ m , which at least partially causes the suppression of the directed reflection.
  • the surface is formed as a sanded, as a sandblasted and / or as an etched surface.
  • a reflection on the surface is advantageously designed as a diffuse reflection.
  • a “mean roughness” is to be understood as meaning, in particular, an average distance of a measuring point located on the surface to a center line, wherein the center line within a reference path intersects a profile of the surface in such a way that a sum of deviations of the profile relative to the center line is minimal.
  • the household appliance device has at least one hob plate, which is arranged at least substantially parallel to the shield plate.
  • a main extension plane of the hob plate is arranged at least substantially parallel to a main extension plane of the shield plate.
  • the cooktop panel is disposed on one side of the portion of the shielding plate at which suppression of reflection of light is enabled.
  • the hob plate on a control panel which is provided in at least one operating state to an operation of the household appliance by a user.
  • a surrounding area of the control panel is free of a light-shielding element which is at least provided to provide a light shield of the control panel.
  • At least substantially parallel should be understood in particular an orientation of a plane relative to a reference plane, the plane relative to the reference plane a deviation in particular less than 8 °, advantageously less than 4 ° and particularly advantageously less than 2 °.
  • a main extension plane of an object, in particular a plane to be understood, which is parallel to a largest side surface of a smallest, in particular imaginary, cuboid, which just completely encloses the object, and which in particular by a center, in particular a geometric center of the cuboid extends .
  • the household appliance device has at least one, in particular artificial, light source which, viewed in particular in a direction which lies in a main extension plane of the shielding plate, is arranged between the hob plate and the shielding plate.
  • the light source in particular in a direction perpendicular to the main plane of extension of the shielding plate, is covered by the hob plate.
  • the light source may in particular be connected to the hob plate.
  • the light source is connected to the shielding plate.
  • the light source is advantageously designed as an incandescent lamp, as a halogen incandescent lamp, as a gas discharge lamp and / or preferably as a light emitting diode or LED.
  • the household appliance device has an at least substantially opaque coating which covers the hob plate at least partially on a side facing the shielding plate.
  • the coating is intended to prevent a view through the cooking plate, which is in particular made of transparent material, into an interior region of the household appliance, in particular designed as a hob.
  • the coating is intended to prevent visibility of light reflections on the shielding plate, at least in a section of the hob plate.
  • An "at least substantially opaque coating” is to be understood in particular to mean an opaque coating which, in the context of customary production processes, can have defects which at least partially permit a transmission of light.
  • the invention proceeds from a method for producing a household appliance device with at least one shielding plate.
  • At least one section of a raw plate for suppressing at least one directed reflection is treated in at least one method step for producing the shielding plate.
  • an efficiency advantageously a light absorption efficiency, a production efficiency and / or a component efficiency
  • a defective production ratio can be advantageously reduced.
  • user comfort can be increased.
  • the section of the raw plate can be roughened in the method step, for example by means of emery, by means of sandblasting, by means of Bristle blastings and / or by means of etching.
  • the section of the raw plate can be coated in the method step and / or in a further method step, for example by means of anodization, by means of electrophoresis and / or with an antireflection coating.
  • FIG. 1 shows a trained as a cooking appliance home appliance 10a in a schematic representation.
  • the household appliance 10a is designed as a hob.
  • the household appliance 10a has a household appliance device.
  • the household appliance device is designed as a hob device.
  • the home appliance device comprises a heating unit (not shown).
  • the heating unit is intended to heat a cooking utensil (not shown).
  • the heating unit at least a heating element (not shown).
  • the heating element is designed as an inductor.
  • the household appliance device has electronics (not shown).
  • the household appliance device comprises a shielding plate 20a (cf. FIG. 2 ).
  • the shielding plate 20a is formed flat. Further, the shield plate 20a is integrally formed.
  • the shield plate 20a is formed as an aluminum plate.
  • the shield plate 20a is formed as a base plate 24a.
  • the shielding plate 20a is disposed between the heating unit and the electronics.
  • the shielding plate 20a is arranged in the direction of gravity above the electronics. Further, the shield plate 20a is arranged under the heating unit when viewed in the direction of gravity.
  • a main extension plane of the shield plate 20a is arranged in an installation position perpendicular to the direction of gravity.
  • a shield plate could be composed of several components.
  • a shielding plate could consist of a material other than aluminum, in particular an alloy, advantageously an aluminum alloy, a copper alloy, an iron alloy and / or a mu metal, and / or a metal, advantageously copper and / or iron.
  • the shield plate 20a is provided for electromagnetic shielding of the electronics.
  • the shielding plate 20a shields the electronics from an electromagnetic field generated by the heating element.
  • the shielding plate 20a is provided to support the heating unit.
  • the home appliance device also includes a cooktop panel 12a.
  • the hob plate 12a is integrally formed.
  • the hob plate 12a is formed as a glass ceramic plate.
  • the cooktop panel 12a is disposed at least substantially parallel to the shield panel 20a.
  • the hob plate 12a is arranged in the direction of gravity above the shield plate 20a.
  • the hob plate 12a is provided for placing the cooking utensil.
  • the cooktop panel 12a has a control panel 16a.
  • the control panel 16a is provided in at least one operating state for operation of the home appliance 10a by a user.
  • a surrounding area of the operation panel 16a is free of a light shielding member provided at least to a light shield of the operation panel 16a.
  • the home appliance device further comprises a light source 18a.
  • the light source 18a is designed as a light-emitting diode (LED).
  • LED light-emitting diode
  • FIG. 2 It can be seen that the light source 18a is disposed between the cooktop plate 12a and the shield plate 20a. The light source 18a is fixed to the shield plate 20a.
  • the light source 18a is provided in at least one operating state, in particular a heating operating state, to illuminate a section of the cooktop plate 12a.
  • a home appliance device could include a plurality of light sources.
  • the household appliance device in order to limit illumination of the hob plate 12a by the light source 18a, has an at least substantially opaque coating 14a.
  • the coating 14a covers the hob plate 12a at least partially on a side facing the shield plate 20a.
  • the coating 14a covers a further portion of the cooktop panel 12a which is formed differently from the section of the cooktop panel 12a.
  • the coating 14a is intended to prevent a view through the hob plate 12a into an interior of the household appliance 10a designed as a hob.
  • the coating 14a is provided to prevent visibility of, in particular, multiple light reflections between the cooktop panel 12a and the shielding panel 20a.
  • the coating 14a can have defects, in particular holes, in the context of conventional production methods.
  • a portion 22a of the shield plate 20a is provided to substantially suppress at least directional reflection of light.
  • the section 22a has a roughened surface.
  • the portion 22a has a surface with an average roughness of at least 1 ⁇ m.
  • the surface causes at least partially the suppression of the directed reflection, so that particularly strong reflections can be avoided. In the present case, the surface allows undirected and / or diffuse reflection.
  • FIG. 2 further shows an exemplary light beam path in an intermediate region between the cooktop plate 12a and the shield plate 20a.
  • a first beam 28a emitted by the light source 18a traverses the intermediate region in a first direction.
  • the hob plate 12a causes by means of directed reflection a transition of the first beam 28a in a second beam 30a.
  • the second beam 30a traverses the intermediate region in a second direction.
  • the second direction includes with the cooktop panel 12a at the same angle as the first direction with the cooktop panel 12a.
  • the roughened surface of the portion 22a causes by means of undirected and / or diffuse reflection, a transition of the second beam 30a into a multiplicity of third beam bundles 32a.
  • the third beams 32a have different directions from each other.
  • the third beams 32a encounter different portions of the coating 14a. If the coating 14a has a defect, in particular a hole, the third ray bundles 32a penetrate the cooking field plate 12a at various locations. Thereby, a light diffusely reflected on the shield plate 20a is uniformly distributed over the cooking field plate 12a. Furthermore, directed movement of the light emitted by the light source 18a is prevented. In addition, strong reflections on the hob plate 12a and on the shield plate 20a are avoided.
  • FIG. 3 a further embodiment of the invention is shown.
  • the following descriptions are essentially limited to the differences between the embodiments, with respect to the same components, features and functions on the description of the embodiment of Figures 1 and 2 can be referenced.
  • the letter a in the reference numerals of the embodiment in the Figures 1 and 2 by the letter b in the reference numerals of the embodiment of FIG. 3 replaced.
  • With respect to identically designated components, in particular with regard to components with the same reference numerals, can in principle also to the drawings and / or the description of the embodiment of Figures 1 and 2 to get expelled.
  • a portion 22b of a shielding plate 20b comprises a coating 26b.
  • the coating 26b at least partially causes the suppression of the directed reflection.
  • the coating 26b is formed as an aluminum oxide layer.
  • the section 22b has a reflection coefficient of at most 50%. In the present case, the section 22b has a reflection coefficient of at most 0.3%.
  • a coating could at least partially consist of aluminum hydroxide.
  • the coating 26b of the portion 22b causes a partial absorption of a second beam 30b.
  • directed movement of the light emitted by the light source 18b is partially prevented.
  • the coating 26b effects a transition of an unabsorbed part of the second beam 30b into a third beam 32b by means of directed reflection.
  • the third ray bundle 32b traverses the intermediate region in a third direction.
  • the third direction includes the same angle with the coating 26b as the second direction with the coating 26b. If the third beam 32b encounters a defect, in particular a hole, of a coating 14b, then the third beam 32b penetrates a hotplate plate 12b.
  • the third beam 32b has a reduced intensity relative to a first beam 28b emitted by a light source 18b. This avoids strong reflections on the hob plate 12b and on the shield plate 20b.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Baking, Grill, Roasting (AREA)
EP18162006.3A 2017-03-30 2018-03-15 Dispositif formant appareil électroménager et procédé de fabrication d'un dispositif formant appareil électroménager Active EP3382284B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201730490A ES2684128B1 (es) 2017-03-30 2017-03-30 Dispositivo de aparato doméstico y procedimiento para la fabricación de un dispositivo de aparato doméstico

Publications (2)

Publication Number Publication Date
EP3382284A1 true EP3382284A1 (fr) 2018-10-03
EP3382284B1 EP3382284B1 (fr) 2022-05-11

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ID=61683662

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EP18162006.3A Active EP3382284B1 (fr) 2017-03-30 2018-03-15 Dispositif formant appareil électroménager et procédé de fabrication d'un dispositif formant appareil électroménager

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EP (1) EP3382284B1 (fr)
ES (1) ES2684128B1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4100767A1 (de) * 1991-01-12 1992-07-23 Hurst & Schroeder Gmbh Leuchtvorrichtung zur kochfeldbegrenzung und verfahren zur herstellung eines lichtleiters fuer eine leuchtvorrichtung
DE4137250A1 (de) * 1991-11-13 1993-05-19 Ego Elektro Blanc & Fischer Strahlungs-heizleiter, insbesondere eines elektrischen strahlungsheitzkoerpers
FR2827114A1 (fr) * 2001-07-03 2003-01-10 Matsushita Electric Ind Co Ltd Dispositif lumineux en ligne et appareil de cuisson a chauffage par induction utilisant celui-ci
EP1536669A2 (fr) * 2003-11-29 2005-06-01 Samsung Electronics Co., Ltd. Appareil de cuisson composé
US20110229112A1 (en) * 2010-03-16 2011-09-22 Ushio Denki Kabushiki Kaisha Heating apparatus
US8168925B2 (en) * 2005-05-20 2012-05-01 Eurokera S.N.C. Glass-ceramic plate and method for the production thereof
WO2012085821A1 (fr) * 2010-12-23 2012-06-28 BSH Bosch und Siemens Hausgeräte GmbH Dispositif pour appareil ménager
WO2013057633A1 (fr) * 2011-10-21 2013-04-25 BSH Bosch und Siemens Hausgeräte GmbH Dispositif table de cuisson
WO2017043640A1 (fr) * 2015-09-11 2017-03-16 日本電気硝子株式会社 Plaque supérieure de cuisson

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100485201B1 (ko) * 1999-12-02 2005-04-27 마쯔시다덴기산교 가부시키가이샤 유도 가열 조리기
WO2009144916A1 (fr) 2008-05-27 2009-12-03 パナソニック株式会社 Appareil de cuisson à chauffage par induction
CA2661514A1 (fr) * 2009-04-20 2010-10-20 Birendra K. Mishra Appareillage de prevention des incendies firevoider
ES2614406T3 (es) * 2010-09-06 2017-05-31 BSH Hausgeräte GmbH Equipo de placa de cocina
WO2012032432A1 (fr) * 2010-09-10 2012-03-15 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de commande d'appareil ménager
JP5492973B2 (ja) * 2012-12-28 2014-05-14 三菱電機株式会社 加熱調理器、および加熱調理器の製造方法
DE102013102115A1 (de) * 2013-03-04 2014-09-18 Miele & Cie. Kg Kocheinrichtung und Verfahren zur Montage
CN105580494B (zh) * 2013-11-06 2019-08-23 松下知识产权经营株式会社 加热烹调器
DE102017127624A1 (de) * 2017-11-22 2019-05-23 Schott Ag Beschichtetes Glas- oder Glaskeramik-Substrat, Beschichtung umfassend geschlossene Poren sowie Verfahren zur Beschichtung eines Substrats

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4100767A1 (de) * 1991-01-12 1992-07-23 Hurst & Schroeder Gmbh Leuchtvorrichtung zur kochfeldbegrenzung und verfahren zur herstellung eines lichtleiters fuer eine leuchtvorrichtung
DE4137250A1 (de) * 1991-11-13 1993-05-19 Ego Elektro Blanc & Fischer Strahlungs-heizleiter, insbesondere eines elektrischen strahlungsheitzkoerpers
FR2827114A1 (fr) * 2001-07-03 2003-01-10 Matsushita Electric Ind Co Ltd Dispositif lumineux en ligne et appareil de cuisson a chauffage par induction utilisant celui-ci
EP1536669A2 (fr) * 2003-11-29 2005-06-01 Samsung Electronics Co., Ltd. Appareil de cuisson composé
US8168925B2 (en) * 2005-05-20 2012-05-01 Eurokera S.N.C. Glass-ceramic plate and method for the production thereof
US20110229112A1 (en) * 2010-03-16 2011-09-22 Ushio Denki Kabushiki Kaisha Heating apparatus
WO2012085821A1 (fr) * 2010-12-23 2012-06-28 BSH Bosch und Siemens Hausgeräte GmbH Dispositif pour appareil ménager
WO2013057633A1 (fr) * 2011-10-21 2013-04-25 BSH Bosch und Siemens Hausgeräte GmbH Dispositif table de cuisson
WO2017043640A1 (fr) * 2015-09-11 2017-03-16 日本電気硝子株式会社 Plaque supérieure de cuisson

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Publication number Publication date
ES2684128A1 (es) 2018-10-01
EP3382284B1 (fr) 2022-05-11
ES2684128B1 (es) 2019-07-29

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