EP3338025B1 - Dispositif de commande pour un appareil ménager comprenant un guide de lumière servant à l'éclairage de plusieurs zones d'un capot avant à des intensités de lumière différentes, appareil ménager comprenant un dispositif de commande de ce type, et procédé servant à faire fonctionner un dispositif de commande - Google Patents

Dispositif de commande pour un appareil ménager comprenant un guide de lumière servant à l'éclairage de plusieurs zones d'un capot avant à des intensités de lumière différentes, appareil ménager comprenant un dispositif de commande de ce type, et procédé servant à faire fonctionner un dispositif de commande Download PDF

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Publication number
EP3338025B1
EP3338025B1 EP16744347.2A EP16744347A EP3338025B1 EP 3338025 B1 EP3338025 B1 EP 3338025B1 EP 16744347 A EP16744347 A EP 16744347A EP 3338025 B1 EP3338025 B1 EP 3338025B1
Authority
EP
European Patent Office
Prior art keywords
light
light guide
operator control
control apparatus
coupling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16744347.2A
Other languages
German (de)
English (en)
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EP3338025A1 (fr
Inventor
Thomas Abel
Reinhard Fleissner
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
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Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL16744347T priority Critical patent/PL3338025T3/pl
Publication of EP3338025A1 publication Critical patent/EP3338025A1/fr
Application granted granted Critical
Publication of EP3338025B1 publication Critical patent/EP3338025B1/fr
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/025—Light-emitting indicators
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/10—Movable parts; Contacts mounted thereon
    • H01H19/14—Operating parts, e.g. turn knob
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/036—Light emitting elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/054—Optical elements
    • H01H2219/062—Light conductor
    • H01H2219/0621—Optical fiber light conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/008—Actuators other then push button
    • H01H2221/01—Actuators other then push button also rotatable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/012—Household appliance

Definitions

  • the invention relates to an operating device for a household appliance, which has a support plate on which an operating element for adjusting operating conditions of the household appliance is rotatably arranged.
  • the operating element has a front cap, which comprises at least one light-transmissive area.
  • the operating device comprises at least one light guide, which extends into the front cap and with which light of a light source of the operating device to the translucent area can be conducted.
  • the invention also relates to a household appliance with such an operating device and a method for operating an operating device.
  • these operating elements then also have translucent areas, then a specific illumination of these translucent areas can take place with light which is guided by means of a light guide to the front cap.
  • rotational positions and / or information about operating condition settings can be made visually recognizable, in particular on the operating element and thus also on the front cap itself.
  • the DE 10 2012 220255 A1 discloses all features of the preamble and describes a home appliance with a front panel on which a rotary selector is rotatably supported by a rotary knob. Light from an LED can be directed via an optical fiber near the rotary selector. The rotary selector points a partially translucent first region and a less translucent second region. Known in the context controls in which the light guide opens into this front cap and is fixed embedded therein, so that a corresponding holder. However, this limits the local light emission and reduces the lighting scenario. Further relevant prior art is contained in the documents DE 10 2007 019 517 . DE 10 2012 209 998 . US 2015/0041 298 . US 2015/016148 to find.
  • the operating element is thus in particular a rotatable control knob or a rotary knob.
  • the operating element has a cap or a front cap, which comprises at least one light-transmitting area.
  • the operating device further comprises a light guide which extends into the front cap and with which light a light source of the operating device to the transparent area of the front cap can be guided.
  • the front cap has a first and a separate second transparent area
  • the light guide is designed such that the first light-transmissive area can be illuminated with a first light intensity of the coupled out light from the light guide and the second light-transmissive region with a second light intensity different from the first light intensity of the light coupled out of the light guide can be illuminated.
  • the light guide extends through an opening in the carrier plate and abuts with an integrated abutment flange on an inner side of the carrier plate.
  • the optical fiber is also mechanically held externally to the front cap. Due to the specific geometry of the optical waveguide with the abutment flange, this attachment can be achieved particularly advantageously in this respect since unwanted inclinations or tilting of the optical waveguide are thus avoided with the abutment flange. As a result, it is possible at any time and permanently that the light conducted through the light guide also arrives locally very precisely in the respectively provided areas of the front cover.
  • this contact flange is also integrated into the light guide, in this respect a component-minimized, in particular one-piece, light guide with an integrated holding element, namely the abutment flange, can be provided.
  • a component-minimized, in particular one-piece, light guide with an integrated holding element, namely the abutment flange, can be provided.
  • This configuration for attaching the optical waveguide also achieves an improved luminous efficacy on the front cap and enables greater variability with regard to illumination scenarios of the front cap to be generated.
  • a light guide section extends in the direction of the longitudinal axis of the light guide on both sides of the abutment flange, a light guide section.
  • the light guide section is in this context a section that selectively conducts coupled light.
  • This configuration makes it possible in a particularly advantageous manner to make the Einkoppelszenario as simple as possible, since the light source outside the front cap and on a first side of the support plate can be arranged.
  • this also makes it possible that only a desired section of the light guide, namely a further light guide section, extends through the opening of the support plate and extends in the context on the opposite side of the first side of the support plate.
  • the carrier plate can also serve as a separating element between the front cap on the one hand and the light source and other components on the other hand. Unwanted light scattering or the like, which could then occur from the emitted light of the light source, can thereby be avoided.
  • the first light intensity is higher than the second light intensity. It can then illuminate very limited areas of the front panel very bright and high intensity and illuminate other, especially larger areas of the front cap with a lower intensity to light.
  • the optical waveguide preferably has a first light decoupling area for coupling out the light for illuminating the first translucent area and a second light decoupling area for decoupling the light for illuminating the second translucent area.
  • the first and second Lichtauskoppel Lake are integrally formed.
  • the optical waveguide is formed separately from the front cap and is arranged at a distance from the light-transmissive region with an end of a light exit region facing the light-permeable region.
  • This is particularly advantageous in that the optical waveguide is thus arranged virtually without contact or contactlessly with respect to this front cap. In this embodiment, therefore, it is basically no longer held by the front cap itself.
  • the above-mentioned advantages are thereby further improved. Especially the design of a one hand maximum light output, which is then conducted to the front cap, as well as a variable representation of symbol-dependent magnitudes of the illumination intensities is thereby improved.
  • the variability of lighting scenarios can be significantly increased.
  • a very high light intensity can be achieved and at other then a desired reduced light intensity can be achieved.
  • This also allows a distinction from strong, accurate to weak, flat illumination within a single component, namely the front cap.
  • parallax problems can be at least significantly reduced, possibly completely prevented.
  • the abutment flange is formed completely circumferentially around a longitudinal axis of the light guide. It is designed in particular as a frame or angular frame. Preferably, he is designed quadrangular in this regard. A very uniform system of the light guide to the inside of the carrier plate is achieved. A particularly advantageous tilting avoidance of the light guide relative to the carrier plate is thus also possible.
  • a first light guide section of the light guide forms a Einstrahlabrisk and opens to the abutment flange.
  • a second light guide section of the light guide forms a radiation section and leads to the abutment flange. Both fiber optic sections therefore end on opposite sides of the abutment flange directly on this abutment flange.
  • the second optical waveguide section has the light outcoupling regions. It is particularly advantageous that the first light guide section is formed geometrically different from the second light guide section. As a result, the coupling of light on the one hand and the defined radiation scenarios on the other hand can be achieved in a particularly advantageous manner.
  • Very precise contours which can be designed geometrically small, can then serve as Einkoppel Schemee or coupling surfaces on the first light guide section, so that here as large a quantity of light can be coupled into the light guide and yet small space is required.
  • Einkoppel Schemee or coupling surfaces on the first light guide section, so that here as large a quantity of light can be coupled into the light guide and yet small space is required.
  • the length considered in the axial direction of the light guide may be different.
  • the first optical waveguide section is designed to be hollow on both sides viewed hollow and viewed in the direction of the longitudinal axis of the optical waveguide.
  • This first light guide section is thus designed quasi tubular, whereby it is very material-saving and thus designed to reduce weight and yet has an advantageous coupling structure.
  • the first light guide section has a trapezoidal inner contour in a sectional plane considered perpendicular to the longitudinal axis.
  • this trapezoidal inner contour is formed over the entire length of the first optical waveguide section along the longitudinal axis of the optical waveguide.
  • the first optical waveguide section has a trapezoidal outer contour in a sectional plane considered perpendicular to the longitudinal axis.
  • the surface area formed between the inner contour and the outer contour is then formed as a trapezoidal frame.
  • the first optical waveguide section has an outer contour which, viewed in the direction of the longitudinal axis, is widened in a cone shape as viewed from a coupling end up to the abutment flange.
  • the second light guide section is partially hollow. It should therefore not be complete, viewed along the longitudinal axis hollow configuration here, but this be given only in sections. As a result, on the one hand, a very lightweight design of the second light guide section can be made possible on the other hand, and on the other hand, particularly advantageous and diverse Lichtleitszenarien and lighting scenes can be achieved.
  • the second optical waveguide section is closed at a coupling-out end facing away from the abutment flange and has a coupling-out structure.
  • the aspects already mentioned above can then be used Be taken into account.
  • the coupled-out light can then be individually directed to a plurality of different places or light-transmissive areas of the front cap, so that a uniform visual appearance then optionally occurs simultaneously at different areas of this type.
  • translucent areas are then illuminated simultaneously, but with different light intensities or light intensities.
  • the decoupling structure has the first light outcoupling region and the second light outcoupling region.
  • the first Lichtauskoppel Lake is in the direction of the first light guide section inwardly oriented polygonal structure, in particular a pyramidal shape.
  • the second light outcoupling region is, in particular, a scattered light zone which is formed on a jacket side of the, in particular trapezoidal, second optical waveguide section and which surrounds the polygonal structure at least in regions.
  • the scattered light zone is a region with a specific surface structure and thus a specific surface roughness.
  • a front cap can be backlit particularly zonally different in intensity that on a front wall of the front cap a plurality of light-transmissive areas, in particular in a circle to each other are formed and an area is brightly lit and the other areas are less brightly illuminated ,
  • This is for example given an operating element which is designed to select functions of the household appliance.
  • this lighting concept is given when the light guide is arranged with respect to the rotational position of the front cap at a 12 o'clock position.
  • a coupling-out structure is a polygonal structure oriented in the direction of the abutment flange.
  • the polygonal structure is a pyramidal shape.
  • the second optical waveguide section has a trapezoidal inner contour in a sectional plane considered perpendicular to the longitudinal axis.
  • This embodiment allows a completely individual light pattern in the decoupling area.
  • the light pipe in the light guide can be very uniform and loss minimized and yet a more complex geometry of the light guide for the light pipe are possible, which then allows different diverse Abstrahlszenarien for generating illumination scenarios of the front cap.
  • the inner contour of the second optical waveguide section tapers from the abutment flange to an outcoupling structure formed on a coupling-out end facing away from the abutment flange.
  • the second optical waveguide section also has a trapezoidal outer contour in a sectional plane considered perpendicular to the longitudinal axis of the optical waveguide.
  • the first light guide section is T-shaped.
  • a roof of the T-shape and thus the horizontal crossbar of the T-shape is curved.
  • the T-shape in the direction of the longitudinal axis of the light guide viewed from a coupling end to the abutment flange is formed widening.
  • the largest possible amount of light can thus be conducted with the least possible loss to the second light guide section.
  • This geometric configuration of the first light guide section is particularly advantageous if the end of the second light guide section facing the first light guide section is geometrically larger than the first light guide section, in particular as the coupling end of the first light guide section.
  • a circumferential light transmission from the first optical waveguide section into the second optical waveguide section can then take place from the first optical waveguide section into the then larger, practically rearward end of the second optical waveguide section.
  • a coupling surface of a foot of the T-shape opens onto a coupling surface of the roof of the T-shape and the coupling surface of the foot extends in a plane which is oriented at an angle to a plane in which the coupling surface of the roof extends.
  • the second optical waveguide section has a ring section as a second light outcoupling area and a cylindrical or in cross-section angular, in particular square or triangular, pin as the first light outcoupling area.
  • thermoelectric values are formed as translucent areas on a front wall of the front cap in a radially inner arc or circle and in a radially larger arc or circle to the front wall then the values associated marking zones are formed as transparent areas, a marking zone to be brightly illuminated in a very focused manner and the associated radially inward value to be illuminated darker and / or the adjacent marking zones and associated values to be illuminated in a darker manner.
  • an operating element is then, for example, a temperature selector.
  • the pin extends further in the direction of the longitudinal axis than the ring section.
  • the above advantages are favored.
  • the light intensity at the point-like illuminations, which are generated by the pin is higher than in the case of this with a larger decoupling surface formed ring sections.
  • a larger light area or light expansion of the coupled-out light is lower as a result.
  • the pin tapers from the abutment flange to a coupling-out end.
  • the light focusing and contour sharp illumination of a translucent area of the front cap is thereby improved.
  • the pin in particular with a cylindrical shape that tapers on a jacket wall, is formed in some areas embedded in a receptacle, in particular at an arc maximum, of the annular section.
  • a coupling web in particular oriented perpendicular thereto, for coupling with a light source having the adapter part is formed. It is thus intended that the coupling web extends in particular perpendicular to a plane in which the abutment flange spans.
  • the light guide is also attached to the adapter part in addition to the attachment to the support plate.
  • the light guide is integrally formed of plastic, in particular PMMA or PC.
  • the light guide is highly polished on the surfaces, at least in the areas in which the light is conducted.
  • the cap has a circular area as the first light-transmitting area and / or has a line area as the second light-transmitting area.
  • a circular area area is formed on a front wall of the particular cylindrical front cap.
  • a line region is formed as a transition between a front wall of the front cap and an adjoining jacket wall of the front cap.
  • the line area can be designed, for example, as a completely encircling circle.
  • the cap is formed at least partially from fiberglass material on an inner side facing the light guide.
  • the effect of the surface light scattering can be enhanced.
  • printing of a front cap is formed on a front wall and / or a jacket wall and that this information is backlit in conjunction with transparent regions or the light regions located laterally are optically marked.
  • the scattering of the coupled-out light is also dependent on the length of the optical waveguide, in particular the second optical waveguide section and thus the remaining distance between an inner side of the front cap and a coupling-out end of the optical waveguide. This is also dependent on how the structuring of the coupling-out structure is formed.
  • a parallax error can be avoided in addition to the already mentioned advantage of a very precise light extraction with high intensity on an inside of the front cap just by the corresponding greater length compared to the ring section.
  • the shorter curved portion constituting a ring portion the light can be widely scattered and thus an inner side of the front cap can be relatively homogeneously illuminated.
  • the front cap is the front end part of the operating element.
  • the front cap is in particular cylindrically shaped and has, on the side facing the carrier plate, a cavity which is open towards the carrier plate and which is delimited by a front wall and a jacket wall closing thereon.
  • the front cap may be formed in one or more parts. It can be printed or partially covered with a foil.
  • the front cap may have a base part, which is surrounded by a metal ring of the cap at least partially.
  • the optical waveguide is shaped and configured in such a way that a radiation scenario or coupling-out scenario of the light can be generated in which, in particular simultaneously, geometrically different and / or different light intensity different and / or spatially different radiating regions can be generated, so that also different light-transmissive regions also simultaneously can be individually illuminated.
  • the invention relates to a method for operating an operating device of a household appliance with a support plate on which an operating element is rotatably arranged, which are adjusted depending on the turning operating conditions of the household appliance, wherein the operating element has a front cap with at least one translucent area, and with a light guide which extends into the front cap and with which light a light source of the operating device is led to the transparent area.
  • a first light-permeable region of the front cap is illuminated with a first light intensity of the light coupled out of the light guide, and a second light-transmitting region of the front cover, which is separate from the first light-permeable region, is provided with a illuminated first light intensity different second light intensity of the coupled out of the light guide light.
  • Advantageous embodiments of the operating device are to be regarded as advantageous embodiments of the method, to allow the subject embodiments alone or in operative connection with the method steps.
  • Direction indications "width direction”, “height direction”, “depth direction”, “top”, “bottom”, “front”, “rear”, “outside”, “inside” etc. for the operating device and the domestic appliance refer to the state of a set up for a conventional and intended use home appliance, in particular its door is arranged for a viewer at the front and the rear side behind.
  • a household appliance 1 which is designed for preparing food and in particular is a cooking appliance such as an oven.
  • the household appliance 1 comprises a housing 2, in which a preparation space 3, in particular a cooking space, is designed for food.
  • This preparation space 3 is closable at the front by a door 4 which is pivotable about an axis relative to the housing 2 and is arranged on the housing 2.
  • the household appliance 1 moreover comprises an operating device 5, which by way of example has a plurality of operating elements 6.
  • At least one operating element 6 is a control knob or a rotary knob, which is rotatable about a perpendicular to the plane of the plane of rotation axis, whereby an adjustment of operating conditions of the household appliance 1 is carried out by different rotational positions.
  • Fig. 2 is a partial view of a representation of sub-components of the operating device 5 is shown.
  • the operating device 5 comprises a support plate 7, which in particular by a in Fig. 1 shown front panel 8 may be formed.
  • the support plate 7 can also be behind the Control panel 8 arranged separate carrier plate.
  • the support plate 7 is designed to receive the operating elements 6.
  • the carrier plate 7 has bushings 9, through which a pin having an axis of rotation can be guided, wherein the pin in the housing 2 can be coupled to an electronic system for detecting the rotational position.
  • the rotational position detection can also be done via a shift drum, which closes a switch or does not close, and by a simple switching element then the switching position is detected from the rotational position.
  • an operating element 6 also includes a cap or a front cap 10, which is connected to this guided through the openings 9 pin.
  • This front cap 10 forms the front and front ends of the operating element 6 and can be gripped by a user in order to carry out the rotational movement relative to the carrier plate 7.
  • the operating device 5 further comprises a light guide, wherein in Fig. 2 a still separated from the support plate 7 embodiment of a light guide 11 is shown.
  • the carrier plate 7 comprises an opening 12, through which the light guide 11 extends through in the assembled state and extends on both sides of the carrier plate 7.
  • the operating device 5 further comprises an adapter part 13, which is formed separately from the carrier plate 7 and separately from the light guide 11.
  • the adapter part 13 comprises a circuit board 14, on which at least one light source, in particular a light-emitting diode, is mounted. The light emitted by this light source is then coupled into the light guide 11 and radiated from the light guide 11 into the front cap 10 from the rear, so that the interior of the front cap 10 is illuminated accordingly.
  • the front cap 10 has, as will be explained below, at least one transparent area, which is illuminated by the light emitted by the light guide 11 light.
  • FIG. 3 is the representation of the components according to Fig. 2 shown in a different perspective.
  • the view is shown on a back 7a, which faces the housing interior.
  • a view obliquely from above on a front side 7b of the support plate 7 is shown.
  • the front 7b is facing a front cap 10.
  • Fig. 4 a further section is shown in which the optical fiber 11 is shown in its position on the support plate 7 and is shown in its extending through the opening 12 through position.
  • the front cap 10 is still shown in the disassembled state.
  • the front cap 10 is cylindrical and has a front wall 10a and a shell wall 10b, through which a to the support plate 7 towards open cavity of the front cap 10 is limited.
  • the front cap 10 comprises a plurality of light-permeable regions 15a, 15b, 15c, 15d, 15e formed in the front wall 10a, which in particular represent symbols of operating functions of the household appliance 1 and are formed spaced apart from each other, for example in an arc.
  • the operating element 6 is therefore a function selector.
  • a first transmissive area is one of these areas 15a to 15e, whereas then the others form the second translucent areas, respectively.
  • the optical waveguide 11 is arranged such that always that region 15a to 15e is illuminated with coupled-out light of first light intensity, which is arranged at a 12 o'clock position. At least some of the then different areas are then illuminated with differently darker second light intensity of coupled-out light of the light guide 11. Further translucent areas 16a, 16b, 16c, 16d, 16e, which are explained below and are arranged in an arc, are then not present.
  • the front cap 10 is formed hollow on the side facing the light guide 11 and arranged in the mounted state without contact to the light guide 11.
  • the front cap 10 ends with its the carrier plate 7 facing the end, which is formed by the front wall 10a facing away from the edge of the jacket wall 10b, viewed in the direction of the axis of rotation in front of the support plate. 7
  • Fig. 5 the embodiment of the light guide 11 is shown in a first perspective view.
  • the one-piece made of plastic, such as PMMA or PC, formed light guide 11 comprises a contact flange 17, which extends in a plane and is formed completely encircling. Shows a square, especially quadrangular, form.
  • the light guide 11 With the abutment flange 17, the light guide 11 is located in the inside or back 7a of the support plate 7 in the assembled state.
  • the light guide 11 comprises a first light guide section 18 and a second light guide section 19. These extend along a longitudinal axis A of the light guide 11 on opposite sides of the abutment flange 17.
  • This coupling element 20 is a plate-like web which extends perpendicular to the extension plane of the abutment flange 17.
  • the first light guide section 18 is hollow over its entire, viewed in the direction of the longitudinal axis A length.
  • the first light guide section 18 leads to the contact flange 17.
  • the second light guide section 19 also opens to the abutment flange 17.
  • the two light guide sections 18 and 19 are geometrically different from one another.
  • the first light guide section 18 is shorter than the second light guide section 19.
  • the first light guide section 18 has a trapezoidal inner contour 21 in a plane which extends perpendicular to the axis A. This trapezoidal inner contour 21 is preferably formed over the entire length of the first optical waveguide section 18.
  • the first light guide section 18 also has, viewed in a plane perpendicular to the axis A, a trapezoidal outer contour 22.
  • this outer contour 22 is formed such that, viewed in the direction of the longitudinal axis A, it is widened in a cone shape from a coupling end 23 to the abutment flange 17.
  • the second light guide section 19 viewed along the longitudinal axis A is formed only partially hollow.
  • the second optical waveguide section 19 is designed to be hollow starting from an end which opens out onto the abutment flange 17 as far as an outcoupling structure 24.
  • the decoupling structure 24 then closes off this hollow region on the side facing away from the abutment flange 17 and thus from a decoupling end 25.
  • the second optical waveguide section 19 comprises in its outcoupling structure 24 a first light outcoupling region 39 and a second light outcoupling region 40.
  • the first Lichtauskoppel Scheme 39 is formed as a polygonal structure, in particular formed with a pyramidal shape. This polygonal structure is oriented in the direction of the abutment flange 17 and thus inwardly and thus not facing away from the abutment flange 17 projecting forward projecting.
  • the second light guide section 19 also has a trapezoidal inner contour in a sectional plane considered perpendicular to the longitudinal axis A.
  • an outer contour 26 of the second optical waveguide section 19 is also trapezoidal in a plane perpendicular to the longitudinal axis A, in particular trapezoidal over the entire length of the second optical waveguide section 19.
  • the hollow region in the second optical waveguide section 19, which has a trapezoidal inner contour in a plane perpendicular to the axis A, is tapered starting from the abutment flange 17 to the coupling-out structure 24.
  • the second light outcoupling region 40 is designed as a scattered light zone 42 on a jacket wall 41 of the second light guide section 19 at the coupling-out end 25.
  • the scattered light zone 42 is circumferentially formed as a strip and thus surrounds the polygonal structure about the axis A circumferentially.
  • the scattered light zone 42 has a surface roughness different from the other surface areas, in particular a greater surface roughness. With the polygonal structure, in particular the first light intensity is generated and with the scattered light zone 42 the second light intensity is generated.
  • a further embodiment of a light guide 27 is shown in a perspective view, which is also integrally formed and for example made of a plastic, in particular PMMA or PC.
  • the first light guide section 18 is T-shaped.
  • a roof 28 of the T-shape is curved.
  • the T-shape is designed to widen.
  • At the Einkoppelende 23 of the T-shape is a coupling surface 29 of a foot 30 of the T-shape spanned in a plane or extending in a plane which is at an angle to a plane in which a coupling surface 31 of the roof 28th extends.
  • the two coupling surfaces 29 and 31 thus do not extend in a common plane.
  • the coupling-in surface 29 of the foot 30 opens at the coupling-in surface 31.
  • the second optical waveguide section 19 comprises a ring section 32 and a cylindrical or preferably angular, in cross-section, pin 33.
  • the annular section 32 forms a second light outcoupling area 44, whereas the pin 33 forms a first light outcoupling area 43.
  • the pin 33 extends in the direction of the longitudinal axis A considered longer than the annular portion 32.
  • the cylindrical pin 33 starting from the abutment flange 17 to a Auskoppelende 34 is tapered ,
  • the pin 33 has an integrally formed on a jacket wall 35 connecting portion 36 which engages in a receptacle 37 of the ring portion 32.
  • the receptacle 37 is formed at an arc maximum 38 of the ring portion 32.
  • the light guide 27 is preferably present at an operating element 6, in which the operating element is designed as an operating parameter value selector, for example as a temperature value selector. It can thus be provided that then on a front wall 10a of the front cap 10, as exemplified in the Fig. 4 is shown, first transparent areas 16a, 16b, 16c, 16d and 16e are formed. These are arranged in an arc or circle and spaced from each other. Further, second transparent portions 15a, 15b, 15c, 15d, and 15e are formed on the front edge 10a, which are values of temperature.
  • a dynamic change of illumination with different light intensities creating a dynamic "switching effect" of lighting when viewing the moving front cap 10 without the Positionally changes light guide or the light emission at the light source would change, which simplifies the control of the light source, since it is only turned on.
  • the surfaces of the light guides 11 and 27, respectively, in which the light is conducted are highly polished. It is preferably provided that the front cap 10 is formed at least partially from glass fiber material on an inner side 10 c facing the light guide 11 or 27.
  • Both embodiments of the light guide 11 and 27 are formed with the abutment flange 17 so that it rests positively on the inside or back 7a.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Planar Illumination Modules (AREA)

Claims (13)

  1. Dispositif de commande (5) pour un appareil ménager (1), comprenant une plaque de support (7) sur laquelle est disposé un élément de commande (6) de manière rotative pour le réglage de conditions de fonctionnement de l'appareil ménager (1), l'élément de commande (6) présentant un capot frontal (10) doté de deux zones perméables à la lumière, et comprenant un conducteur optique (11, 27) qui s'étend en pénétrant dans le capot frontal (10) et à l'aide duquel la lumière d'une source lumineuse du dispositif de commande (5) peut être guidée vers les zones perméables à la lumière, le capot frontal (10) présentant une première zone perméable à la lumière et une deuxième zone perméable à la lumière (15a, 15b, 15c, 15d, 15e, 16a, 16b, 16c, 16d, 16e), séparée de la première, et le conducteur optique (11, 27) étant réalisé de manière à ce que la première zone perméable à la lumière (15a, 15b, 15c, 15d, 15e, 16a, 16b, 16c, 16d, 16e) puisse être éclairée avec une première intensité lumineuse de la lumière découplée du conducteur optique (11, 27), et que la deuxième zone perméable à la lumière (15a, 15b, 15c, 15d, 15e, 16a, 16b, 16c, 16d, 16e) puisse être éclairée avec une deuxième intensité lumineuse de la lumière découplée du conducteur optique (11, 27), différente de la première intensité lumineuse, caractérisé en ce que le conducteur optique (11, 27) disposé de manière stationnaire sur la plaque de support (7) s'étend à travers une ouverture (12) dans la plaque de support (7) et est adjacent à un côté intérieur (7a) de la plaque de support (7) avec une bride d'appui (17) intégrée, et une section de conducteur optique (18, 19) s'étendant de chaque côté de la bride d'appui (17) en direction de l'axe longitudinal (A) du conducteur optique (11, 27), laquelle guide la lumière injectée de manière précise.
  2. Dispositif de commande (5) selon la revendication 1, caractérisé en ce que le conducteur optique (11, 27) présente une première zone de découplage de lumière (39, 43) destinée à découpler la lumière pour l'éclairage de la première zone perméable à la lumière (15a, 15b, 15c, 15d, 15e, 16a, 16b, 16c, 16d, 16e), et une deuxième zone de découplage de lumière (40, 44) destinée à découpler la lumière pour l'éclairage de la deuxième zone perméable à la lumière (15a, 15b, 15c, 15d, 15e, 16a, 16b, 16c, 16d, 16e).
  3. Dispositif de commande (5) selon la revendication 2, caractérisé en ce que la première et la deuxième zones de découplage de lumière (39, 43, 40, 44) sont réalisées d'une seule pièce.
  4. Dispositif de commande (5) selon l'une quelconque des revendications précédentes, caractérisé en ce que le conducteur optique (11, 27) est réalisé de manière séparée du capot frontal (10) et, avec une extrémité d'une zone de découplage de lumière (39, 43, 40, 44), tournée vers les zones perméables à la lumière (15a, 15b, 15c, 15d, 15e, 16a, 16b, 16c, 16d, 16e), est disposé à distance des zones perméables à la lumière (15a, 15b, 15c, 15d, 15e, 16a, 16b, 16c, 16d, 16e).
  5. Dispositif de commande (5) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une première section de conducteur optique (18) forme une section de rayonnement et débouche sur la bride d'appui (17), en ce qu'une deuxième section de conducteur optique (19) forme une section d'émission et débouche sur la bride d'appui (17) et présente des zones de découplage de lumière (39, 43, 40, 44) destinées à générer la lumière découplée avec différentes intensités lumineuses, la première section de conducteur optique (18) étant réalisée de manière géométrique différente de la deuxième section de conducteur optique (19).
  6. Dispositif de commande (5) selon la revendication 5, caractérisé en ce que la première section de conducteur optique (18) est réalisée de manière creuse et ouverte de chaque côté en vue en direction de l'axe longitudinal (A) du conducteur optique (11), et en ce que la deuxième section de conducteur optique (19) est réalisée de manière creuse par endroits et/ou en ce que la première section de conducteur optique (18), dans un plan de coupe en vue perpendiculairement à l'axe longitudinal (A), présente un contour intérieur (21) trapézoïdal et/ou un contour extérieur (22) trapézoïdal.
  7. Dispositif de commande (5) selon la revendication 6, caractérisé en ce que la deuxième section de conducteur optique (19) est fermée à une extrémité de découplage (25) détournée de la bride d'appui (17) et présente une structure de découplage (24), laquelle présente la première zone de découplage de lumière (39) et la deuxième zone de découplage de lumière (40).
  8. Dispositif de commande (5) selon la revendication 7, caractérisé en ce que la première zone de découplage de lumière (39) est une structure polygonale, notamment une forme pyramidale, orientée vers l'intérieur en direction de la première section de conducteur optique (18), et en ce que la deuxième zone de découplage de lumière (40) est une zone de diffusion de lumière (42) réalisée sur un côté d'enveloppe (41) de la deuxième section de conducteur optique (19), notamment trapézoïdale, et entourant au moins en partie la structure polygonale.
  9. Dispositif de commande (5) selon la revendication 5, caractérisé en ce que la première section de conducteur optique (18) est réalisée en forme de T.
  10. Dispositif de commande (5) selon la revendication 5 ou 9, caractérisé en ce que la deuxième section de conducteur optique (19) présente une section annulaire (32) en tant que deuxième zone de découplage de lumière (44) et une tige (33) cylindrique ou angulaire en section transversale, en tant que première zone de découplage de lumière (43).
  11. Dispositif de commande (5) selon la revendication 10, caractérisé en ce que la tige (33), en direction de l'axe longitudinal (A), s'étend plus loin que la section annulaire (32).
  12. Appareil ménager (1) comprenant un dispositif de commande (5) selon l'une quelconque des revendications précédentes.
  13. Procédé de fonctionnement d'un dispositif de commande (5) pour un appareil ménager (1), comprenant une plaque de support (7) sur laquelle est disposé un élément de commande (6) de manière rotative, à l'aide duquel des conditions de fonctionnement de l'appareil ménager (1) sont réglées en fonction de la rotation, l'élément de commande (6) présentant un capot frontal (10) doté de deux zones perméables à la lumière, et comprenant un conducteur optique (11, 27) qui s'étend en pénétrant dans le capot frontal (10) et à l'aide duquel la lumière d'une source lumineuse du dispositif de commande (5) est guidée vers la zone perméable à la lumière, une première zone perméable à la lumière (15a, 15b, 15c, 15d, 15e, 16a, 16b, 16c, 16d, 16e) du capot frontal (10) étant éclairée avec une première intensité lumineuse de la lumière découplée du conducteur optique (11, 27), et une deuxième zone perméable à la lumière (15a, 15b, 15c, 15d, 15e, 16a, 16b, 16c, 16d, 16e) du capot frontal (10), séparée de la première zone perméable à la lumière (15a, 15b, 15c, 15d, 15e, 16a, 16b, 16c, 16d, 16e), étant éclairée avec une deuxième intensité lumineuse de la lumière découplée du conducteur optique (11, 27), différente de la première intensité lumineuse, caractérisé en ce que la lumière de la source lumineuse est guidée à l'aide du conducteur optique (11, 27) lequel est disposé de manière stationnaire sur la plaque de support (7) et s'étend à travers une ouverture (12) dans la plaque de support (7) et est adjacent à un côté intérieur (7a) de la plaque de support (7) avec une bride d'appui (17) intégrée, et une section de conducteur optique (18, 19) s'étendant de chaque côté de la bride d'appui (17) en direction de l'axe longitudinal (A) du conducteur optique (11, 27), laquelle guide la lumière injectée de manière précise.
EP16744347.2A 2015-08-19 2016-07-21 Dispositif de commande pour un appareil ménager comprenant un guide de lumière servant à l'éclairage de plusieurs zones d'un capot avant à des intensités de lumière différentes, appareil ménager comprenant un dispositif de commande de ce type, et procédé servant à faire fonctionner un dispositif de commande Active EP3338025B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16744347T PL3338025T3 (pl) 2015-08-19 2016-07-21 Urządzenie operacyjne do urządzenia gospodarstwa domowego ze światłowodem do oświetlania wielostrefowego nakładki przedniej z różnym natężeniem światła, urządzenie gospodarstwa domowego z takim urządzeniem operacyjnym i sposób eksploatacji urządzenia operacyjnego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015215769.5A DE102015215769A1 (de) 2015-08-19 2015-08-19 Bedienvorrichtung für ein Haushaltsgerät mit einem Lichtleiter zur Mehrzonenbeleuchtung einer Frontkappe mit unterschiedlichen Lichtintensitäten, Haushaltsgerät mit einer derartigen Bedienvorrichtung und Verfahren zum Betreiben einer Bedienvorrichtung
PCT/EP2016/067356 WO2017029062A1 (fr) 2015-08-19 2016-07-21 Dispositif de commande pour un appareil ménager comprenant un guide de lumière servant à l'éclairage de plusieurs zones d'un capot avant à des intensités de lumière différentes, appareil ménager comprenant un dispositif de commande de ce type, et procédé servant à faire fonctionner un dispositif de commande

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EP3338025A1 EP3338025A1 (fr) 2018-06-27
EP3338025B1 true EP3338025B1 (fr) 2019-10-02

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EP16744347.2A Active EP3338025B1 (fr) 2015-08-19 2016-07-21 Dispositif de commande pour un appareil ménager comprenant un guide de lumière servant à l'éclairage de plusieurs zones d'un capot avant à des intensités de lumière différentes, appareil ménager comprenant un dispositif de commande de ce type, et procédé servant à faire fonctionner un dispositif de commande

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US (1) US10692670B2 (fr)
EP (1) EP3338025B1 (fr)
CN (1) CN107923626B (fr)
DE (1) DE102015215769A1 (fr)
ES (1) ES2750664T3 (fr)
PL (1) PL3338025T3 (fr)
WO (1) WO2017029062A1 (fr)

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ES2750664T3 (es) 2020-03-26
PL3338025T3 (pl) 2020-05-18
WO2017029062A1 (fr) 2017-02-23
CN107923626B (zh) 2020-01-17
US10692670B2 (en) 2020-06-23
DE102015215769A1 (de) 2017-02-23
US20180240624A1 (en) 2018-08-23
CN107923626A (zh) 2018-04-17
EP3338025A1 (fr) 2018-06-27

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