EP2141415A2 - Dispositif d'affichage pour une plaque de cuisson, plaque de cuisson et procédé de fonctionnement d'un tel dispositif d'affichage - Google Patents

Dispositif d'affichage pour une plaque de cuisson, plaque de cuisson et procédé de fonctionnement d'un tel dispositif d'affichage Download PDF

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Publication number
EP2141415A2
EP2141415A2 EP09160897A EP09160897A EP2141415A2 EP 2141415 A2 EP2141415 A2 EP 2141415A2 EP 09160897 A EP09160897 A EP 09160897A EP 09160897 A EP09160897 A EP 09160897A EP 2141415 A2 EP2141415 A2 EP 2141415A2
Authority
EP
European Patent Office
Prior art keywords
display device
light
row
hob
over
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.)
Withdrawn
Application number
EP09160897A
Other languages
German (de)
English (en)
Other versions
EP2141415A3 (fr
Inventor
Christian Egenter
Martin Volk
Wilfried Schilling
Uwe Winkler
Tobias SCHÖNHERR
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.)
EGO Elektro Geratebau GmbH
Original Assignee
EGO Elektro Geratebau 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 EGO Elektro Geratebau GmbH filed Critical EGO Elektro Geratebau GmbH
Publication of EP2141415A2 publication Critical patent/EP2141415A2/fr
Publication of EP2141415A3 publication Critical patent/EP2141415A3/fr
Withdrawn legal-status Critical Current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
    • 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

Definitions

  • the invention relates to a display device for a hob, a hob with a plurality of such display devices and a method for operating such a display device.
  • the invention has for its object to provide an aforementioned display device for a hob, a cooking hob provided therewith and an operating method with which problems of the prior art can be achieved and in particular a beneficial and provided with additional functions display device can be created.
  • the display device has a support for a plurality of bulbs, which is formed elongated.
  • the luminous means extend in two rows next to one another, the rows being in particular parallel to one another.
  • a cover is provided over at least a first row of light sources with light-transmissive areas which are formed in symbol form and / or letter form, wherein this cover preferably extends over all light sources of this first row. Apart from these translucent areas in symbol form, the cover over this first row of bulbs is opaque. Furthermore, separations are provided between the light sources of this first row, which prevent over-radiation from one light source to a light-transmitting area above an adjacent or another light source. This ensures that a light source actually only illuminates only the desired translucent area that is associated with it, and no other unwanted.
  • the bulbs of this first row it is thus possible to display certain lights or symbols glowing.
  • the illuminants of the second row can then, as will be explained in detail below in various embodiments, serve for other purposes.
  • the bulbs in the first row with the partially translucent and otherwise opaque cover over a distance from each other, which corresponds to about twice to five times their extent.
  • bulbs in the form of LED or particularly advantageous SMD LED to make the distance of the bulbs to each other so large that the illuminated symbols are about it sufficiently large and well visible to an operator.
  • all lamps in this first row at an equal distance from each other, this is also possible for the above arranged translucent areas in symbol form.
  • bulbs which are preferably the same as in the first row, may be equidistant from those of the first row.
  • This second row of bulbs is advantageously arranged as a cover, which, however, is substantially translucent or at least translucent, so translucent. Similar to the translucent areas in symbol form over the first row of illuminants, this translucency may be designed to provide a kind of diffuser effect for the light of the LED underneath. This results in a uniform and pleasant light distribution or illumination of the respective areas.
  • the cover may be formed as a kind of thick film of plastic, for example, with a thickness of well below 1mm, possibly with a thickness of about 0.3mm. Furthermore, the cover is advantageously provided as a single component for all lamps.
  • a different light transmission can be achieved for example by a multi-component manufacturing process. Alternatively, opaque areas by printing with opaque color or the like. respectively.
  • the cover can be attached to the top of the housing in the manufacture of the display device, for example, be glued.
  • the carrier is advantageously a flat component carrier, in particular a printed circuit board.
  • a housing with the aforementioned separations is placed, the housing with the separations each forms a kind of light channel.
  • the aforementioned cover is attached.
  • the housing with the light channels or the separations therebetween can thus be designed as a kind of grid.
  • an outer circumferential housing wall is made thicker, while the separations can also be made relatively thin with a suitable choice of a suitable plastic to achieve the desired opacity between adjacent light channels.
  • the housing may be designed such that it essentially covers or surrounds the lighting means on the carrier. So a shield against unwanted side lighting can be achieved.
  • the assembly of carrier, bulbs and housing and possibly cover is thus made light-tight except for the desired direction of illumination upward along the light channels. It is possible that at least on the longitudinal sides of the device, the housing overlaps the carrier for safe avoidance of unwanted lateral illumination.
  • the housing is advantageously formed in one piece and connected to the cover, for example, undetachable to a unit. It can be fastened to or on the support in various ways, for example, by clipping with mechanical holding devices, which may be formed under certain circumstances detachable.
  • the carrier and housing and thus the entire display device bent or arc-shaped.
  • This may in particular be a uniform bend.
  • a certain adaptation to commonly round hotplates on a hob of the shape is possible.
  • a plurality of cooking zones, each with such a display device according to the invention are provided in a hob according to the invention, it is considered sufficient if all display devices are identical.
  • the bending or rounding of the display devices can not be adapted exactly to an outer shape of the cooking hobs, which are usually of different sizes.
  • this is not considered to be particularly problematic, in particular because the display devices may be at least a few millimeters away from a hob.
  • a display device may have a controller, in particular a microcontroller.
  • This control can be used to connect the display device with a central control of a hob for communication, in particular with a control bus provided therein.
  • a said central control of the hob can change a display state on the display device in response to control commands, which in turn may depend on operating conditions of the respective hob or by different inputs or operations of an operator.
  • Such a bus connection of the display device to a control bus of the hob is particularly advantageously designed to be bidirectional, so that both the hob control can change the display state on the display device and each is informed about what is actually displayed.
  • the device still has a seven-segment display.
  • further information can be displayed, as is generally the case of display devices on hobs or the like. is known.
  • a coverage sensor may be provided on the display device, for example in the manner of a reflection light barrier, which is directed upwards or acts.
  • a sensor can also operate capacitively or inductively, for example as a pan detection sensor known per se.
  • a corresponding warning signal can be output, for example, after feedback from the display device to a central control of the hob via the aforementioned control bus, so that an operator is made aware of this faulty state.
  • a temperature sensor may be provided on the display device, which in particular is also oriented upward.
  • a temperature sensor can either be a simple resistance sensor element or else detect the temperature prevailing over the display device via heat radiation.
  • one or more spacers may be provided on the upper side of the display device. These can ensure that the display device is arranged with a certain, well-defined distance below a hob plate of a hob. This is particularly advantageous in usually nubbed undersides of these cooktops, since here a certain distance is considered advantageous to make the light image uniform and visually appealing. These spacers can advantageously survive over the aforementioned cover with diffuser effect. They can for example be formed as protruding lugs on the aforementioned housing. They can also provide as an additional function for a precise determination of the position of said cover to the housing. The spacers should provide for a distance of 0.1 to 1 mm, in particular about 0.5 mm, to the underside of the hob plate and thus survive with this measure on top of the cover.
  • Fig. 1 is a display device 11 according to the invention in the assembled state as a finished unit and in Fig. 2 shown exploded in their individual parts decomposed.
  • the display device 11 is, as in the plan view Fig. 3 becomes clear, oblong and slightly curved, having approximately constant width.
  • the display device 11 has a carrier 12 with this basic shape, which may be in particular a printed circuit board.
  • a carrier 12 with this basic shape, which may be in particular a printed circuit board.
  • electrical connections 13 it is shown on the right side of the carrier 12 by the bars how electrical connections 13 can be formed, namely as a type of fields for multiple plugs for plugging a corresponding mating plug thereon according to Fig. 1 at the right projecting end of the carrier 12th
  • a correspondingly formed housing 14 made of plastic, whose training Fig. 2 is better understood and will be described in detail below.
  • This housing 14 carries at the top a cover 15, which also made Fig. 2 is apparent.
  • the cover 15 is in the form of a generally translucent, but translucent formed thick film or thin plastic layer. It has a symbol region 16 located in the front region, which is again opaque except for symbols 17 which are designed to be transparent. This opacity can be achieved by coating the symbol area 16 with omission of the Symbols 17 take place.
  • both the symbols 17 and the remaining surface area of the cover 15 can be irradiated with light from below and this illumination can be recognized from above.
  • a certain diffuser effect of the cover 15 may be provided, which allows a more uniform and visually appealing light phenomenon. However, this is basically known.
  • the housing 14 has fastening loops 19 formed integrally therewith and rubber feet 20 which can be attached next to it.
  • a lateral fixation of the display device 11 by means of bolts engaging in the eyelets can be carried out as a possible fastening method with simultaneous pressure or resilient mounting due to the rubber feet 20 upwards against a running over cooktop panel accordingly Fig. 4 ,
  • a plurality of LEDs are arranged, once twelve LED 22 a, which form a first row 23 corresponding to the curvature of the carrier 12. Furthermore, eighteen LEDs 22b are arranged in parallel and form the parallel second row 24 of LEDs, which project beyond the first row 23 on both the left and the right.
  • the number of LEDs 22a and 22b can be varied here. In addition, it is also possible that a third row of LEDs can be provided.
  • each LED 22a of the first row 23 provides that associated with each LED 22a of the first row 23 through partitions 26a light channels 27a.
  • An outshining in a light channel 27a of an adjacent LED 22a is prevented by the partitions 26a.
  • each LED 22a has its own light channel, which may also be provided in a modification of the invention under certain circumstances that per LED light channel more LEDs could be provided.
  • corresponding light channels 27b are provided, which are each separated by separations 26b from each other or are shielded from each other.
  • the partitions 26 at the bottom of the housing 14 best extend to the support 12 or at least just about it.
  • the carrier 12 clearly. If no electrical connections 13 or the like at the ends of the carrier 12. should be provided, as an electrical connection, for example, takes place differently, an extension of the housing beyond the carrier and an overlapping is also possible here.
  • the cover 15 in the strip of the second row 24 of LED 22b is uniformly translucent, but advantageously translucent again for an aforementioned diffuser effect.
  • the LED 22b with an area corresponding to the cross section of the light channel 27b to the underside of the cover 15 shine, the diffuser effect considered to be advantageous, because then in principle this entire surface is seen as approximately uniformly upwards as bright.
  • the separations 26a and 26b and the other walls of the light channels 27a and 27b as smooth as possible or reflective, possibly even obliquely or in the manner of a parabolic mirror form, so that as much light from the LED 22 upwards is blasted.
  • Fig. 2 are theoretically possible, for example, on the underside of the carrier 12 opposite of the LED 22 arranged further electrical or electronic components, in particular for driving the display device 11.
  • This may be, for example microcontroller for controlling the display device 11, for example, for an aforementioned bus connection to a control bus an electrical appliance or hob.
  • Fig. 3 is shown in plan view, as for example, all the LED 22b are driven by the second row 24 or shine, which should be represented by the gray level.
  • the light bars 29a and 29c shine green or generally in a weaker light tone and the middle light bar 29b red or in a stronger light tone.
  • this entire luminescent strip does not always have to be illuminated over its entire length of all the LEDs 22b, but is subdivided into eighteen individual luminous segments by the light channels 27b, the length of the luminous strip can vary.
  • any light segments can be activated, so that the entire light strip glows, for example, only in the form of the light bars 29a and 29c or in even smaller subdivisions.
  • Other lighting effects can be the illuminance, for example change periodically or flashing with the same or changing flashing frequency. This is easy to realize in each case for the expert, if it seems appropriate according to the circumstances.
  • color variations may also be present, in particular by different choice of colors for the individual LED 22b, which also applies to the LED 22a of the first row 23.
  • Some bulbs of a row, in particular the first row for example, can be operated permanently, preferably in a constant number or with constant operation.
  • Illuminants of the other row can, for example, be variably operated with switching on and off of different illuminants, preferably as luminous strips moving in the luminous representation in the manner of a running light.
  • This light strip can, for example, toggle back and forth, wherein in particular the respective front area of the light strip with a width of two or three LEDs can shine brighter than the rear one with more LED.
  • an operation display of a cooking area can be realized, depending advantageously depend on a cooking level brightness, speed of movement or length of the light strip.
  • Fig. 3 to recognize that some of the LED 22a of the front row 23 is activated and thus certain symbols 17 are illuminated. In the middle, the letters HOT are lit, so the word HOT is displayed as hot indication. In addition, this is still illustrated by the flames formed symbols 17 left and right next to it. Since such a hot display is intended as a warning, offers here, for example, the color red or a similar signal color for the underlying LED 22a and illuminated LED on. Whether in actual operation, the hot indication accordingly Fig. 3 is simultaneously indicated by illuminated LED 22a as well as the overlying light strip, which tends to be used more for displays of cooking levels, is to decide in each case and a question of interpretation of the display device or the underlying display method.
  • a hot indication be carried out as an operating method.
  • the temperature may be illustrated by the length of a light strip above it.
  • Fig. 4 is a plan view of an inventive hob 31 shown. It has in the usual way a hob plate 32, advantageously made of glass ceramic, as well as four burners 33a to d.
  • the cooking zones 33 have induction coils as inductive heating devices, which are not shown here.
  • an operating device 35 with touch switches, represented by the round symbols, and the seven-segment display, as is known to those skilled in the art.
  • Assigned to the operating device 35 is a dashed central control 36.
  • This central control 36 controls both the hob 31 so that it receives operating commands that have been input to the operating device 35, and depending on the operating state of the cooking zones 33a adjusts to d.
  • a central control can also be integrated into the operating unit.
  • Fig. 2 shown how two recesses 25a and 25b are provided on the housing 14 to the left and right of the first row 23. These likewise pass through the housing 14 like the light channels 27 and serve to arrange the aforementioned cover sensors and / or temperature sensors thereon. These sensors are also advantageously mounted on the carrier 12 and electrically connected. They should be designed so that their functions are not impaired upwards by the cover 15. Alternatively, the cover 15 should be removed in this area or completely transparent, so transparent, are formed.
  • connection lines 37a to d which respectively go from the central controller 36 to a display device 11a to d.
  • the display devices 11a to d are respectively arranged at the same place and at approximately the same distance from the outer edge of the cooking zones 33a to d in front of the transparent or translucent cooktop panel 32.
  • the display devices 11 are shown in dashed lines, since they themselves are not illuminated disabled state can not be detected.
  • the light bars 29b and 29c are lit accordingly Fig. 3
  • the display device 11d behind it is the light bars 29a and 29b.
  • Fig. 4 On a representation of the illuminated symbols 17 over the first row 23 of LED 22a is shown here in Fig. 4 omitted for clarity. Based on Fig. 3 However, it is easy to imagine how individual of these symbols 17 are illuminated and then similar to the seven-segment display of the operating device 35 from below the hob plate 32 above it can be seen as a light phenomenon.
  • Various display modes have also been described above.
  • Fig. 1 and 2 are the aforementioned spacers. However, they may be provided, for example, at the four corners of the top of the housing 14, possibly also with one or more spacers along the length of the housing 14 therebetween, to avoid deflection in this central area toward the overlying underside of the hob plate 32.
  • the cover 15 and its top one small distance to it, for example, about 0.5mm.
  • an optimal effect of the luminous appearance of the symbols 17 and the light bars 29 can be achieved through them in the usually nubbed undersides of the hob plate 32 made of glass ceramic.
  • the control of the display devices 11 by means of the central control 36 in response to inputs to the operating device 35 or depending on the state of the cooking zones 33a-d is carried out via a bus system described above.
  • the central controller 36 has a control bus for a bidirectional connection with each display device 11 or for a prescribed circular connection or looping. Furthermore, an energy supply for the operation of the LED 22 takes place via these connection lines 37.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
EP09160897A 2008-06-02 2009-05-22 Dispositif d'affichage pour une plaque de cuisson, plaque de cuisson et procédé de fonctionnement d'un tel dispositif d'affichage Withdrawn EP2141415A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008027220A DE102008027220A1 (de) 2008-06-02 2008-06-02 Anzeigevorrichtung für ein Kochfeld, Kochfeld und Verfahren zum Betrieb einer solchen Anzeigevorrichtung

Publications (2)

Publication Number Publication Date
EP2141415A2 true EP2141415A2 (fr) 2010-01-06
EP2141415A3 EP2141415A3 (fr) 2010-09-01

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EP09160897A Withdrawn EP2141415A3 (fr) 2008-06-02 2009-05-22 Dispositif d'affichage pour une plaque de cuisson, plaque de cuisson et procédé de fonctionnement d'un tel dispositif d'affichage

Country Status (3)

Country Link
US (1) US20090321413A1 (fr)
EP (1) EP2141415A3 (fr)
DE (1) DE102008027220A1 (fr)

Cited By (4)

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Publication number Priority date Publication date Assignee Title
WO2011137982A1 (fr) 2010-05-05 2011-11-10 Electrolux Home Products Corporation N.V. Interface de cuisson, plaque de cuisson, dispositif de cuisson et procédé de fonctionnement d'une interface de cuisson
EP2469973A1 (fr) * 2010-12-22 2012-06-27 BSH Bosch und Siemens Hausgeräte GmbH Plaque de cuisson à induction dotée d'un éclairage de table de cuisson
WO2014060919A3 (fr) * 2012-10-19 2014-12-24 BSH Bosch und Siemens Hausgeräte GmbH Appareil ménager
EP3490339A1 (fr) 2017-11-28 2019-05-29 E.G.O. ELEKTRO-GERÄTEBAU GmbH Capteur de détection de récipient pour une plaque de cuisson à induction et plaque de cuisson à induction

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EP2458285B1 (fr) * 2010-11-26 2015-09-16 Electrolux Home Products Corporation N.V. Plaque de cuisson avec panneau céramique en verre et un dispositif d'éclairage
DE102011082424A1 (de) 2011-09-09 2013-03-14 Herbert Waldmann Gmbh & Co Kg Leuchte
DE102012219040A1 (de) 2012-10-18 2013-11-28 E.G.O. Elektro-Gerätebau GmbH Anzeigevorrichtung für ein Kochgerät und Kochgerät
DE102013102524B4 (de) 2013-03-13 2024-01-04 Miele & Cie. Kg Bedien- und Anzeigevorrichtung für ein elektrisches Gerät
ES2590427B1 (es) 2015-05-21 2017-09-07 Bsh Electrodomésticos España, S.A. Sistema de cocción
USD787041S1 (en) 2015-09-17 2017-05-16 Whirlpool Corporation Gas burner
US10837651B2 (en) 2015-09-24 2020-11-17 Whirlpool Corporation Oven cavity connector for operating power accessory trays for cooking appliance
US11777190B2 (en) 2015-12-29 2023-10-03 Whirlpool Corporation Appliance including an antenna using a portion of appliance as a ground plane
DE102016206174B4 (de) * 2016-04-13 2023-10-12 E.G.O. Elektro-Gerätebau GmbH Anzeigeelement, Anzeigevorrichtung mit einem solchen Anzeigeelement und Elektrogerät mit einer solchen Anzeigevorrichtung
US10145568B2 (en) 2016-06-27 2018-12-04 Whirlpool Corporation High efficiency high power inner flame burner
US10551056B2 (en) 2017-02-23 2020-02-04 Whirlpool Corporation Burner base
US10660162B2 (en) 2017-03-16 2020-05-19 Whirlpool Corporation Power delivery system for an induction cooktop with multi-output inverters
EP3395290A1 (fr) * 2017-04-26 2018-10-31 Ivoclar Vivadent AG Appareil de photopolymérisation dentaire
KR102060151B1 (ko) 2018-03-23 2019-12-27 엘지전자 주식회사 인디케이터 구조가 개선된 유도 가열 장치
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US10619862B2 (en) 2018-06-28 2020-04-14 Whirlpool Corporation Frontal cooling towers for a ventilation system of a cooking appliance
US10837652B2 (en) 2018-07-18 2020-11-17 Whirlpool Corporation Appliance secondary door

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WO2003014624A1 (fr) 2001-08-08 2003-02-20 BSH Bosch und Siemens Hausgeräte GmbH Appareil de cuisson

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011137982A1 (fr) 2010-05-05 2011-11-10 Electrolux Home Products Corporation N.V. Interface de cuisson, plaque de cuisson, dispositif de cuisson et procédé de fonctionnement d'une interface de cuisson
EP2392859A1 (fr) 2010-05-05 2011-12-07 Electrolux Home Products Corporation N.V. Interface de table de cuisson, panneau de table de cuisson, dispositif de cuisson et procédé de fonctionnement d'une interface de table de cuisson
US9140458B2 (en) 2010-05-05 2015-09-22 Electrolux Home Products Corporation N.V. Cooktop-interface having projection display device
EP2469973A1 (fr) * 2010-12-22 2012-06-27 BSH Bosch und Siemens Hausgeräte GmbH Plaque de cuisson à induction dotée d'un éclairage de table de cuisson
WO2014060919A3 (fr) * 2012-10-19 2014-12-24 BSH Bosch und Siemens Hausgeräte GmbH Appareil ménager
EP3490339A1 (fr) 2017-11-28 2019-05-29 E.G.O. ELEKTRO-GERÄTEBAU GmbH Capteur de détection de récipient pour une plaque de cuisson à induction et plaque de cuisson à induction

Also Published As

Publication number Publication date
US20090321413A1 (en) 2009-12-31
DE102008027220A1 (de) 2009-12-03
EP2141415A3 (fr) 2010-09-01

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