WO2015068076A1 - Appareil électroménager - Google Patents

Appareil électroménager Download PDF

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Publication number
WO2015068076A1
WO2015068076A1 PCT/IB2014/065628 IB2014065628W WO2015068076A1 WO 2015068076 A1 WO2015068076 A1 WO 2015068076A1 IB 2014065628 W IB2014065628 W IB 2014065628W WO 2015068076 A1 WO2015068076 A1 WO 2015068076A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
waveguide
shielding unit
appliance device
infrared radiation
Prior art date
Application number
PCT/IB2014/065628
Other languages
German (de)
English (en)
Inventor
Eduardo Imaz Martinez
Sergio Llorente Gil
Damaso Martin Gomez
Maria Elena Moya Albertin
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 WO2015068076A1 publication Critical patent/WO2015068076A1/fr

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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • 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 home appliance device, in particular a
  • Induction house appliance device according to claim 1.
  • the household appliance device having a plurality of sensors and an equal number of waveguides, each waveguide directing infrared radiation to a sensor associated with the waveguide.
  • the household appliance device comprises a shielding unit common to all sensors, which is designed as a container and forms an interior in which all the sensors are arranged together.
  • the waveguides are guided through recesses in the interior, wherein an outlet end is directed to the sensor associated with the waveguide.
  • the sensors are mounted on a bottom surface of the interior and the shielding unit in turn is mounted on an electronic board.
  • the object of the invention is in particular to provide a generic device with advantageous properties in terms of temperature measurement.
  • the object is achieved by the features of claim 1, while advantageous embodiments and refinements of the invention
  • a home appliance device in particular a Indudictionshausellavorraum, proposed with at least one electronic board, with at least one sensor which is arranged in the assembled state on the electronic board and for a detection of
  • Infrared radiation is provided, with at least one waveguide, which is intended to conduct infrared radiation to the at least one sensor, with at least one light guide, which in the mounted state, at least in a transition region between the at least one waveguide and the at least one sensor arranged and is provided to transmit by the at least one waveguide guided infrared radiation to the at least one sensor, in particular to focus the at least one sensor, and with at least one shielding unit, which is provided at least the at least one sensor against background radiation at least essentially shield.
  • home appliance device is in particular a Part of a domestic appliance, in particular an induction house appliance, understood.
  • An “electronic circuit board” should be understood to mean in particular an element on which, at least in the assembled state, electrical components, in particular electrical components
  • a “sensor” is to be understood as meaning in particular at least one element that has at least one
  • Infrared radiation-sensitive detector has and / or is intended to measure at least one intensity and / or a wavelength of incident infrared radiation.
  • the sensor is intended to detect infrared radiation at least to a determination of a temperature of the cooking utensil set up.
  • infrared radiation is intended in particular electromagnetic radiation from a
  • Wavelength range of 180 nm to 0.3 mm are understood.
  • Waveguide shall be understood to mean, in particular, an element which is intended to transmit, in particular to transport, in particular infrared radiation in the longitudinal direction of the waveguide, in particular by means of total reflections,
  • the waveguide is provided to allow entry and / or exit of at least infrared To at least substantially prevent radiation in directions oriented at least substantially perpendicular to the longitudinal direction
  • Waveguide at least one inlet end and at least one outlet end, which forms when unwinding the waveguide in a plane opposite each other in the longitudinal direction of the waveguide ends.
  • the waveguide is associated with the sensor.
  • a first waveguide is "assigned" to a first sensor, it should be understood that in each operating state in which the first waveguide conducts infrared radiation, the infrared radiation guided by the first waveguide, in particular exclusively from In particular, the first waveguide transmits infrared radiation, in particular exclusively, to the first sensor in each operating state.
  • a "light-conducting means" is to be understood as meaning in particular an element which is at least substantially transparent at least for infrared radiation and is provided, at least one leakage of infrared radiation from the
  • the light-conducting means is intended to transmit to the sensor a proportion of at least 85%, in particular of at least 90%, advantageously of at least 95%, of infrared radiation conducted through the waveguide to the sensor.
  • Light guide means provided to focus on the sensor guided by the waveguide infrared radiation to at least one detection range of the sensor and / or to focus.
  • the degree of scattered transmission through the light-conducting agent is low, in particular not more than 0.1, advantageously not more than 0.05, preferably not more than 0.02.
  • the light-conducting agent is at least substantially non-transparent to visible light, in particular in order to filter visible light guided through the waveguide to the sensor and to prevent it from reaching the sensor. Under a
  • Transition region between the waveguide and the sensor should in particular be understood as a spatial region comprising at least the exit end of the waveguide and at least the sensor, wherein the exit end of the waveguide at a first end of the transition region and the sensor at a second, the first end The transition region in particular extends at least between the exit end of the waveguide and the sensor.
  • shielding unit is to be understood as meaning in particular a unit which is at least essentially non-transparent at least for background radiation. In particular, the shielding unit has at least one material which is at least substantially intransparent for background radiation.
  • the shielding unit can comprise at least one coating, in particular at least one nontransparent coating, advantageously a color coating, in particular a lacquer, which is provided for shielding at least the sensor against background radiation.
  • the shielding unit at least substantially surrounds the transition region between the sensor and the waveguide. It is conceivable that the shielding unit has intransparent material, for example silicone, plastic and / or resin, in which the sensor and the outlet end of the waveguide are cast. This could be between the
  • the shielding unit is formed "at least substantially non-transparent" at least for background radiation, it should be understood in particular that the
  • Shielding unit from incident on one side of the shielding unit
  • Background radiation reflects a proportion of at least 90%, in particular of at least 95%, advantageously at least 98% and / or absorbed.
  • Opaque should be understood to be particularly opaque and / or impermeable.
  • Waveguide to the sensor-guided electromagnetic radiation is designed differently. In particular, should under
  • the shielding unit is intended to "at least substantially shield” at least the at least one sensor against background radiation, it should be understood in particular that the shielding unit is intended to have a proportion of at least 90%, in particular of at least 95%, Advantageously, at least 98% and preferably at least 99% of background radiation impinging on the shielding unit on a side facing away from the sensor, in particular, reflect and / or absorb background radiation and preferably reach a second side opposite the first side and a lateral one
  • "programmed” is to be understood to mean specially programmed, designed and / or equipped. The fact that an object is intended for a specific function should in particular mean that the object fulfills and / or executes this specific function in at least one application and / or operating state.
  • the embodiment according to the invention makes it possible to provide a domestic appliance device with advantageous properties with regard to a temperature measurement.
  • high flexibility and / or accurate detection of at least infrared radiation can be achieved.
  • a disturbance of a detection of at least infrared radiation by background radiation can be avoided.
  • an isolation of at least the sensor against background radiation can be achieved.
  • the sensor By arranging at least the sensor on the electronic board, in particular a space-saving and / or inexpensive configuration can be achieved.
  • the sensor can be flexibly positioned.
  • the at least one shielding unit has at least one alignment means which is provided to align the at least one waveguide relative to the at least one sensor. Accordingly, the shielding unit, in particular in addition to a shield of the sensor element against
  • the at least one alignment means is provided to at least the exit end of the waveguide, over which in at least one
  • Operating state infrared radiation emerges in at least one outlet direction, to position relative to at least one detection range of the sensor, wherein the
  • Exit direction is directed in particular in the direction of the detection area.
  • the at least one alignment means is at least one
  • Alignment means at least a portion of the waveguide, in particular at least a portion around the outlet end of the waveguide, at least substantially.
  • Aligning means the exit end of the waveguide relative to the sensor.
  • a high reliability and in particular a precise detection of infrared radiation can be achieved.
  • low costs and / or a small footprint can be achieved.
  • a stable and / or durable design can be achieved.
  • the at least one shielding unit in the mounted state is arranged at least partially in a near region of a detection region of the sensor.
  • the shielding unit being arranged "at least partially” in a near region of a detection region of the sensor, it should be understood in particular that at least a part of the shielding unit is arranged in the near region
  • a "near zone" of a detection zone of the sensor should in particular be understood to mean a zone which is at a distance of not more than 20 mm, in particular not more than 10 mm, from the detection zone of the sensor. advantageously has a maximum of 5 mm. Under a "detection area" should
  • a region of the sensor are understood, on soft in at least one operating state electromagnetic radiation for detection purposes meets and / or by which in at least one operating state electromagnetic
  • Radiation passes for detection purposes. This can be achieved in particular a space-saving design and / or accurate detection of infrared radiation.
  • the at least one shielding unit in the mounted state is firmly connected to the at least one electronic circuit board.
  • Shielding unit and the electronic board conceivable.
  • the electronic board conceivable.
  • Shielding unit directly and / or indirectly connected to the electronic board.
  • both could be bonded to one another, in particular adhesively bonded, in particular by means of adhesive and / or resin and / or silicone, and / or be soldered.
  • the shielding unit could be firmly connected to the electronic circuit board by means of at least one screw and / or by means of at least one rivet, wherein in each case a connection with and / or without a washer is conceivable.
  • the shielding could be connected via fasteners, such as dowel-like elements, firmly connected to the electronic board.
  • the shielding unit could be locked to the electronics board.
  • the home appliance device comprises at least one latch unit, which is provided for latching the at least one shielding unit to the at least one electronic circuit board.
  • a “locking unit” is to be understood in particular a unit having at least one latching element, which in a
  • Fixing operation is elastically deflected to then lock by an internal clamping force behind a corresponding locking element. This can be achieved in particular a high flexibility and / or an environmentally friendly design. In particular, a quick assembly and / or disassembly can be achieved.
  • the at least one waveguide and the at least one light-conducting means have comparable refractive indices at least for infrared radiation.
  • Two "at least comparable" refractive indices are to be understood in particular as two refractive indices whose values differ by a maximum of 0.5, in particular by a maximum of 0.3, advantageously by a maximum of 0.2, preferably by a maximum of 0.1, and / or their values when forming a quotient by a maximum of 0.3, in particular by a maximum of 0.2, advantageously by a maximum of 0.15, preferably by a maximum of 0.1, deviate from a value of 1.
  • Waveguide and the light guide may be at least substantially integrally formed, wherein the waveguide, in particular the sensor facing the exit end of the waveguide, could form the light guide.
  • the waveguide and the light guide are formed separately.
  • in one piece is meant, in particular, at least materially bonded, for example, by a welding process, a bonding process, an injection molding process and / or another process which appears expedient to a person skilled in the art
  • the at least one light-guiding means may be formed as at least one lens, for example a GRIN lens.
  • the at least one light-conducting means in particular in the ready-to-operate state, in particular of the household appliance, at least one at least partially fluid material.
  • an "at least partially fluid” material is to be understood as meaning, in particular, a fluid which has a proportion of more than 10%, advantageously at least 30%, preferably at least 50%, advantageously at least 70%, in particular more than 90% of at least one Contains solid and / or having a viscosity of at least 0.5 milli-pascal-seconds, in particular of at least 0.7 milli-pascal-seconds, advantageously at least 1 milli-pascal-second, preferably of at least 10 milli-pascal-seconds ,
  • the at least partially fluid material has a viscosity of at most 10 5 milli-pascal seconds, advantageously of at most 10 4 milli-pascal seconds, preferably of at most 10 3 milli-pascal seconds.
  • the at least partially fluid material could be formed as a gel, immersion liquid, optical adhesive, silicone, plastic and / or resin.
  • an operator and / or user appear to be reasonable at least partially fluid materials conceivable. As a result, in particular formation of air bubbles and / or leakage of infrared radiation can be prevented.
  • the at least one shielding unit is provided to at least substantially prevent leakage of the at least one at least partially fluid material out of the transition region.
  • the shielding unit and the light-guiding means are functionally coupled to one another.
  • the shielding unit forms at least one lateral boundary of the light-conducting means.
  • the cover unit is provided to keep the light-conducting means at least in the mounted state in a position. Under the turn that the
  • Shielding unit is provided to at least prevent leakage of the fluid from the transition region "at least substantially", should be understood in particular that the shielding unit is provided over a period of one day, a leakage of not more than 0.5%, in particular A maximum of 0.3%, advantageously of not more than 0.1%, of an amount of at least partially fluid material from the transition region is to be avoided, thereby making it possible, in particular, to achieve an inexpensive design and / or a small number of components.
  • Fig. 1 shows a domestic appliance with a domestic appliance device according to the invention in a schematic plan view
  • FIG. 2 the domestic appliance device of Fig. 1 in a schematic
  • FIG. 1 shows a domestic appliance 30, which is designed as an induction home appliance, with a domestic appliance device 10 which is provided for the induction home appliance.
  • the domestic appliance 30 is designed as a hob.
  • the home appliance device 10 is provided for the hob.
  • the household appliance 30 is as Induction hob formed.
  • the household appliance 30 comprises a base body 32, which is used for setting up
  • the main body 32 is formed as a hob plate.
  • the main body 32 forms a cooking surface.
  • the domestic appliance 30 comprises an operating unit 34 for inputting and / or selecting operating parameters, for example a heating power and / or a heating power density and / or a heating zone.
  • Operating unit 34 is provided for outputting a value of an operating parameter to an operator.
  • the home appliance 30 comprises a control unit 36, which in
  • the home appliance device 10 comprises a plurality of heating elements (not shown) which are used to heat up
  • the heating elements which are designed as induction heating elements, are arranged below the main body 32.
  • the heating elements When heating cooking utensils installed above the heating elements, the installed cooking utensil emits infrared radiation.
  • the infrared radiation emitted by the heated cooking utensil may be in an area between the heating elements and that of the
  • Heating elements heated cooking utensils are registered and / or detected
  • the home appliance device 10 comprises an electronic circuit board 12 and a sensor 14 (see FIG.
  • the sensor 14 is arranged in the mounted state on the electronic board 12.
  • the sensor 14 is mounted in the assembled state on the electronic board 12.
  • the sensor 14 is soldered in the assembled state on the electronic board 12.
  • the sensor could be glued to the electronics board 12. Also conceivable are further, to a professional appear appropriate attachments.
  • the sensor 14 has a detection area 26 and is provided for detection of infrared radiation. In this case, the sensor 14 detects infrared radiation emitted by a heated cooking utensil.
  • the home appliance device 10 includes a waveguide 16 that directs infrared radiation to the sensor 14.
  • the waveguide 16 is associated with the sensor 14.
  • the waveguide 16 has an exit end 38 which in the assembled state in the direction of
  • Detection area 26 of the sensor 14 is aligned.
  • the waveguide 16 is formed of material having a refractive index of substantially 1.5.
  • the domestic appliance device 10 comprises a light-conducting means 18.
  • the light-conducting means 18 is in a mounted state in one
  • Transition region 20 between the waveguide 16 and the sensor 14 is arranged.
  • the waveguide 16 and the light guide 18 are formed substantially of the same material.
  • the light guide 18 has a refractive index of substantially 1.5.
  • the waveguide 16 and the light guide 18 have comparable refractive indices. Infrared radiation conducted to the sensor 14 by the waveguide 16 is transmitted from the light guide 18 to the sensor 14.
  • the light guide 18 is partially formed integrally with the sensor 14.
  • Light-guiding means 18 has a protective material 48 which is provided to protect the sensor 14.
  • the protective material 48 is attached to the sensor 14.
  • the protective material 48 is formed of resin.
  • the protective material could be made of plastic and / or silicone.
  • further protective materials which appear appropriate to a person skilled in the art.
  • the home appliance device 10 comprises a shielding unit 22 which substantially shields the sensor 14 against background radiation.
  • shielding unit 22 substantially shields sensor 14, light guide 18, and exit end 38 from background radiation.
  • the shielding unit 22 is formed substantially of non-transparent material.
  • the shielding unit 22 has
  • the area around the exit end 38 is secured to the alignment means 24 in the assembled state.
  • the exit end could be trapped and / or glued in the alignment member.
  • the shielding unit 22 forms an interior space 40. In the interior 40, in the assembled state, the sensor 14, the Light guide 18 and the outlet end 38 is arranged. In the assembled state, the shielding unit 22 is partially arranged in a vicinity of the detection area 26 of the sensor 14. Substantially parallel to the electronic board 12
  • the shielding unit 22 is fixedly connected in the mounted state to the electronic board 12, on which the sensor 14 is arranged.
  • the home appliance device 10 comprises a latching unit 28, which locks the shielding unit 22 to the electronics board 12 on which the sensor 14 is arranged.
  • the latching unit 28 is partially formed integrally with the shielding unit 22.
  • the shielding unit 22 forms part of the latching unit 28.
  • the shielding unit 22 has two latching elements 42.
  • the locking elements 42 are formed as latching hooks.
  • the latching elements 42 cooperate with corresponding latching elements 44 of the electronic circuit board 12.
  • the electronic board 12 forms corresponding latching elements 44 in the form of recesses.
  • the latching unit 28 is partially formed integrally with the electronic circuit board 12.
  • the control unit takes account of background radiation in an evaluation of the detection of guided by the waveguide to the sensor infrared radiation, in particular despite a negligible magnitude of background radiation, in particular makes a background radiation correction.
  • the area around the exit end 38 of the waveguide 16 is attached to the alignment means 24.
  • a region of the shielding unit 22 facing away from the electronics board 12 in the assembled state is substantially hermetically sealed.
  • the area around the outlet end 38 projects in the assembled state into a part of the interior 40 into it.
  • the light-guiding means 18 is introduced into the inner space 40.
  • the light guide 18 has a partially fluid material 46.
  • the partially fluid material 46 of the Lichtleitschs 18 has a viscosity of substantially 100 milli-pascal-seconds.
  • the light guiding means 18 fills substantially the entire inner space 40 except for the areas where the sensor 14 and the area around the exit end 38 are located.
  • the shielding unit 22 substantially prevents leakage of the partially fluid material 46 from the transition region 20. By such an assembly, formation of air bubbles within the interior 40 can be avoided.
  • the light guide means 18 surrounds the sensor 14 and the exit end 38 of the waveguide 16 substantially.
  • the partially fluid material 46 remains in a partially fluid state.
  • the partially fluid material is cured after latching of the shielding unit with the electronic board. For example, curing of the partially fluid material using elevated temperature, UV radiation and / or ambient conditions could be used.
  • the skin device heater could include multiple sensors and multiple waveguides, with a number of sensors and waveguides at least substantially equal.
  • the Hautechniksammlungterrorismraum would have a shielding unit for each of the sensors.
  • each of the sensors could be arranged on the electronic board, wherein each of the sensors would be individually shielded by one of the shielding units.
  • Each of the sensors would be associated with a waveguide which, at least in the mounted state, would be aligned relative to the sensor by the shielding unit shielding the sensor.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

Pour produire un appareil générique ayant des propriétés avantageuses en termes de mesure de température, l'invention propose un appareil électroménager (10), en particulier un appareil électroménager à induction comportant au moins une carte électronique (12), au moins un capteur (14) qui est disposé à l'état monté sur la carte électronique (12) et qui sert à détecter un rayonnement infrarouge, au moins un guide d'ondes (16) qui sert à guider un rayonnement infrarouge vers l'au moins un capteur (14), au moins un moyen de guidage de lumière (18) qui est disposé à l'état monté au moins dans une zone de transition (20) entre l'au moins un guide d'ondes (16) et l'au moins un capteur (14) et qui sert à transmettre le rayonnement infrarouge (16), guidé par au moins un guide d'ondes, à l'au moins un capteur (14), et au moins une unité de blindage (22) qui sert à protéger, au moins sensiblement, l'au moins un capteur (14) contre les rayonnements de fond.
PCT/IB2014/065628 2013-11-05 2014-10-27 Appareil électroménager WO2015068076A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP201331612 2013-11-05
ES201331612 2013-11-05

Publications (1)

Publication Number Publication Date
WO2015068076A1 true WO2015068076A1 (fr) 2015-05-14

Family

ID=52011263

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2014/065628 WO2015068076A1 (fr) 2013-11-05 2014-10-27 Appareil électroménager

Country Status (1)

Country Link
WO (1) WO2015068076A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2117282A1 (fr) * 2007-01-10 2009-11-11 Panasonic Corporation Dispositif de cuisson a induction
EP2173137A1 (fr) * 2007-06-22 2010-04-07 Panasonic Corporation Appareil de cuisson à induction
EP2373120A1 (fr) * 2008-12-26 2011-10-05 Panasonic Corporation Appareil de cuisson à induction
EP2410815A1 (fr) * 2009-03-19 2012-01-25 Panasonic Corporation Cuiseur à chauffage par induction

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2117282A1 (fr) * 2007-01-10 2009-11-11 Panasonic Corporation Dispositif de cuisson a induction
EP2173137A1 (fr) * 2007-06-22 2010-04-07 Panasonic Corporation Appareil de cuisson à induction
EP2373120A1 (fr) * 2008-12-26 2011-10-05 Panasonic Corporation Appareil de cuisson à induction
EP2410815A1 (fr) * 2009-03-19 2012-01-25 Panasonic Corporation Cuiseur à chauffage par induction

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