US20130098351A1 - Cooking Appliance - Google Patents
Cooking Appliance Download PDFInfo
- Publication number
- US20130098351A1 US20130098351A1 US13/659,363 US201213659363A US2013098351A1 US 20130098351 A1 US20130098351 A1 US 20130098351A1 US 201213659363 A US201213659363 A US 201213659363A US 2013098351 A1 US2013098351 A1 US 2013098351A1
- Authority
- US
- United States
- Prior art keywords
- cooking appliance
- thermochrome
- cooktop plate
- thermochrome material
- heating device
- 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.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/10—Tops, e.g. hot plates; Rings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/12—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance
- G01K11/14—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance of inorganic materials
-
- 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
- H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
- H05B3/746—Protection, e.g. overheat cutoff, hot plate indicator
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/12—Cooking devices
- H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
- H05B6/1218—Cooking devices induction cooking plates or the like and devices to be used in combination with them with arrangements using lights for heating zone state indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K2207/00—Application of thermometers in household appliances
Definitions
- the disclosure relates to a cooking appliance including an optical temperature indicator.
- the optical temperature indicator may be particularly used as a heat indicator or residual heat indicator for a cooktop plate of the cooking appliance for protection against burning known per se.
- thermochrome paint or thermochrome material on a carrier underneath a cooktop plate, for example on the upper side of an induction heating device which is pressed against the cooktop plate from below.
- a change temperature of the thermochrome paint is selected such that, for example, a clearly discernable color is visible as an optical indicator above a change temperature of the indicator that corresponds to a temperature at the cooktop plate that is regarded to be hazardous to the operator.
- a warning signal is output to the operator. The warning signal disappears again when the temperature falls below said hazardous temperature at the cooktop plate.
- a cooking appliance may include a cooktop plate with a heating device arranged underneath for heating a cooking vessel positioned on the cooktop plate.
- An optical indicator device for temperature may be positioned below the cooktop plate.
- This optical indicator device may include a thermochrome material for optical indication.
- the thermochrome material may include metal oxides being fluorescent for emitting light and being present as a powder with a major part of powder grains having a particle size between 10 nm and 80 nm.
- FIG. 1 a sectional side view of a first cooking appliance according to the embodiments, having a ring-shaped optical indicator device with thermochrome paint around the heating device;
- FIG. 2 a second cooking appliance according to the embodiments having an induction coil as a heating device and an optical indicator device which is bonded face-to-face to the heating device;
- FIG. 3 an indicator device shown in a hot state of the cooktop plate or the optical indicator device according to FIG. 2 ;
- FIG. 4 a sectional view of the indicator device according to FIG. 2 on a much larger scale
- FIG. 5 an extended 2-step indicator based on FIG. 3 ;
- FIG. 6 an indicator yet once more extended similar to FIG. 3 .
- the disclosure herein provides a cooking appliance with a cooktop plate having a heating device that is arranged underneath the cooktop plate.
- a cooking vessel including content positioned above the heating device on the cooktop plate can be heated.
- An optical indicator device for optical temperature indication is provided underneath the cooktop plate and is visible or discernable through the cooktop plate.
- the indicator device may include thermochrome material for the temperature indication.
- the thermochrome material may essentially include metal oxides that are fluorescent for emitting light and that are present as a powder.
- a major part of the powder or thermochrome material may have a particle size between 10 nm and 80 nm, particularly between 20 nm and 50 nm.
- the powder or thermochrome material can be admixed in paint or coating which in turn is applied using a suitable method.
- the optical properties, also with regard to the fluorescence, after completion or finish are thereby largely determined by the admixed fluorescent thermochrome material.
- thermochrome material when reaching a change temperature, it is possible that the thermochrome material does not only change its color and along with that also slightly changes its visibility due to the changed shade of color per se, but said visibility is significantly changed or dramatically increased by the fact that the material is actually fluorescent and is above all selected such that above said change temperature it shows quasi immediate emission by itself, and thus is visible even through conventional cooktop plates of cooktops made from colored glass ceramics. For this reason, a very high perceptibility of the optical temperature indication is ensured in any case, particularly in the case of a high temperature lying above said change temperature where a warning should be output indeed.
- an optical indicator is created which comes closer to a conventional luminous display than obtainable by means of thermochrome indicator devices to date.
- thermochrome material Because of the small size or small grain size of the powder of the thermochrome material quantum effects or quantum properties of said materials can be used which cause the fluorescence of the thermochrome material.
- the powder grains of the material do no longer perform according to classical theory but as quantum particles with predefined energy gaps. They have an essential advantage to the effect that when excited with energy, they can emit light having a sharp wavelength, and thus they are visible. A narrow grain size distribution in said range is advantageous in this case.
- thermochrome material has a particle size in said range between 10 nm and 80 nm.
- at least 75%, preferably even more than 90%, that is to say the very predominant part is comprised therein. Even better effects can be achieved if said high proportion of the thermochrome material has particle sizes in the range of 20 nm to 50 nm, thus within an even smaller range.
- thermochrome material with its small particle size can preferably be in a range of +/ ⁇ 10% of the average grain diameter. By means of such a narrow particle size distribution said effects can very well be generated or utilized.
- thermochrome materials are based on cadmium (Cd) such as CdSe (cadmium selenide) or CdS (cadmium sulphide).
- Cd cadmium
- CdSe cadmium selenide
- CdS cadmium sulphide
- thermochrome material or the above mentioned paint or coating underneath the cooktop plate and to design the cooktop plate in a non-transparent manner. This does not mean that it should be impervious to light but merely that it does not have to be completely transparent. If, after all, the cooktop plate is transparent, naturally an indicator according to the disclosure works all the better. Thus the disclosed embodiments also work with a translucent cooktop plate. Naturally, a light transmission capability applies primarily to the light emitted by the fluorescent thermochrome material, and can thus also depend on light wavelengths.
- the fluorescent thermochrome material can be applied on a carrier as a powder or as an admix to a paint or coating, particularly on an electrically and/or thermally insulating material of a carrier such as mica or ceramics.
- the thermochrome material can also be applied in a paint or coating on a carrier such as adhesive labels or foils, which on their part can be attached to various devices such as heating devices or induction coils or contact heating devices by simply sticking them on the latter.
- thermochrome material can be designed as a face, a symbol, a letter or the like. It is also generally possible to use multiple thermochrome materials which can be arranged directly adjacent or even superimposed in a layer structure under certain circumstances. In this way, e.g., several change temperatures can be achieved for a quasi two-step indication process including differentiation of two temperatures. This would of course increase convenience of operation and convenience of indication even further.
- the wavelength of the light emitted by the fluorescent thermochrome material is in the range of 480 nm to 650 nm.
- this light can easily be perceived by an operating person.
- it lies in a range of colors that are commonly used for coloring cooktop plates, which are often colored in a reddish-brown shade so that such an optical temperature indicator can be particularly well discerned through this type of cooktop plates as well.
- an optical temperature indicator is designed in such a way that the fluorescent thermochrome material is arranged in the vicinity of a heating device of the cooking appliance.
- the thermochrome material is arranged above the induction heating device or interposed between the latter and the cooktop plate. It can, for instance, be designed as a coating or a colored adhesive label on an insulating cover of such an induction heating device.
- the disclosure herein may be realized with a so-called keep-warm heating device, with the keep-warm heating device acting as contact heating element, and including electrical resistance heating elements and being arranged at the bottom side of the cooktop plate. Cooking vessels placed on top will then be kept warm together with their content at a temperature of 50° C. to 80° C. so that the food inside can be served at any time.
- keep-warm heating elements or the electrical resistance heating elements therein do by far not reach such high temperatures as radiant heating devices but can be kept within a temperature range that is better to handle and in which sufficiently strong materials are available.
- thermochrome material can be applied as otherwise also described, for instance as direct coating or as an adhesive label.
- the carrier for the resistance heating element can be made from ceramics, such as aluminium oxide or the like, or from a metal and an insulating layer.
- the electrically insulating carrier may be arranged between the heating resistor and the cooktop plate for safety reasons. Therefore a coating of the thermochrome material or the above-mentioned adhesive label or foil having a thermochrome material can be applied on the side of the carrier that abuts the bottom side of the cooktop plate.
- FIG. 1 shows a sectional side view of a cooking appliance in the form of a cooktop 11 having a cooktop plate 13 with a heating device 18 which is arranged underneath said cooktop plate.
- the cooktop plate 13 can be a conventional glass-ceramic cooktop plate including a bottom side 14 and an upper side 15 . It can advantageously be colored, for instance in reddish-brown or milky-white, as this is often the case. As an alternative, it can be essentially translucent or transparent, at least above the indicator device or the fluorescent thermochrome material, respectively. However, then the advantage of the fluorescent properties is less pronounced since transmission through the cooktop plate 13 is easier.
- the cooktop plate may be colored or coated or furnished with paint around the transparent areas in a kind of masking as known per se.
- the heating device 18 can be a radiant heating device used for cooktops 11 or a keep-warm heating device or a contact heating device on the one hand or an induction coil for an induction heating device on the other hand. In the present case, this may be relevant only for the expected temperatures or the temperatures to be adjusted regarding the embodiment shown in FIG. 1 .
- the heating device 18 is advantageously pressed against the bottom side 14 of the cooktop plate 13 even though it is not directly fixed to it. However, a defined position can thus be achieved.
- An indicator device 20 in a ring shape is arranged around the heating device 18 . It runs relatively close to the heating device 18 and can either have a small distance to the bottom side 14 of the cooktop plate 13 or it can abut the latter or be pressed against it. However, actual fastening of the indicator device 20 is effected using separate fastening means.
- a fastening protrusion 22 can be provided as shown in FIG. 1 (left side) on which the indicator device 20 is mounted, for instance bonded or clamped.
- the fastening protrusion 22 can be provided on the side of the heating device 18 or rather project from the latter, e.g. formed as a sheet metal connecting link or the like. As an alternative, it can be clamped thereon as a circular ring or the like.
- FIG. 1 An alternative embodiment of a fastening protrusion 22 ′ is shown on the right side of FIG. 1 , with said fastening protrusion not directly provided on the heating device 18 but either on a separate fastening means which might possibly also support the heating device 18 as well as further heating devices of the cooktop.
- the fastening protrusion 22 ′ may alternatively also be bonded to the bottom side 14 of the cooktop plate 13 in a non-detachable manner and then, for example by clamping or snapping into place, support the indicator device 20 .
- the arrangement of the indicator device 20 around the heating device 18 and in the close vicinity thereof may be important in this case.
- the indicator device 20 can actually be pressed against the bottom side 14 of the cooktop plate 13 and, under certain circumstances, this may even be advantageous.
- the indicator device 20 is not fastened to the cooktop plate 13 in a non-detachable manner, for example by adhesive bonding or direct coating. In this way and by means of the present disclosure, the structure or the production of the cooktop plate 13 , respectively, may be more simple.
- a radiant heating device When operating the heating device 8 , there is a differentiation between a radiant heating device or a keep-warm heating device or a contact heating device, respectively on the one hand and an induction coil on the other.
- a radiant heating device the latter is emitting, e.g. by means of glow heating elements in the type of filaments or the like, upwards through the cooktop plates 13 by means of its heating capacity which is then coupled into a vessel or the cooking contents in the vessel, respectively via a bottom side of the cooking vessel which is placed on top of it. Thereby the cooktop plate 13 gets heated directly through the radiated power and indirectly via the bottom part of the vessel.
- said change temperature can be selected even lower in view of the heat transmission from the cooktop plate 13 to the indicator device 20 .
- the heating device 18 in the form of a radiant heating device, the indicator device 20 will indeed be heated to a significantly higher temperature, that is to say 150° C. to 250° C. in practice. However, this does not matter since in this case, the change temperature has been exceeded and the color change is effected at the fluorescent thermochrome paint.
- the essential issue is the temperature below said change temperature, and the consequence that an optical indication disappears again or that it should be present until the change temperature is reached, then in the case of higher temperatures. Therefore, a change temperature of 35° C. to 60° C., for example, may be sufficient in this case, particularly also if the indication device 20 is directly fitted to the bottom side 14 of the cooktop plate 13 , and thus providing a very good heat transmission at very similar temperatures.
- a change temperature of 35° C. to 60° C. may be sufficient in this case, particularly also if the indication device 20 is directly fitted to the bottom side 14 of the cooktop plate 13 , and thus providing a very good heat transmission at very similar temperatures.
- the change temperature of the thermochrome paint it must be considered that the cooktop plate 13 may even be hotter in the central area above the heating device 18 than in the border areas close to the indicator device 20 .
- the indicator device 20 consists of a carrier 23 which is made from heatresistant plastics or other materials such as Mikanit or ceramics, for example. Fluorescent thermochrome material is applied thereof as a paint 24 or as a powder which is admixed to the paint 24 respectively.
- the thermochrome paint 24 can change its color from an unremarkable color, such as a dark color like blue, to the fluorescent luminous color such as red, which then serves as a clearly visible indicator or residual heat indicator. In this way, by the color change for temperatures above said change temperature, the optical residual heat indication is generated/formed by the changed fluorescent thermochrome paint itself.
- an induction heating device used as heating device 18
- the latter can directly heat up the indicator device 20 only to a minor degree, for example due to losses in an induction coil.
- Inductive heating of a correspondingly heatable carrier 23 of the indicator device 20 is to be rejected, particularly also because it would then in turn be independent of the temperature of the cooktop plate 13 .
- the indicator device 20 having the fluorescent thermochrome paint 24 is only heated by the return heat of the cooktop plate 13 just as already described before.
- the induction heating device does not directly heat the cooktop plate 13 but only gets hot because of the return heat of the directly heated bottom side of the vessel, and therefore the cooktop plate is heated less intensively or mainly at lesser rate, respectively.
- An alternative embodiment of the cooktop 111 according to FIG. 2 includes an induction heating device for a heating device 118 .
- Said induction heating device 118 is provided with an indicator device 120 on the upper side thereof and is pressed against the bottom side 114 of a cooktop plate 113 together with said device.
- Pressing the induction heating device 118 can be effected by conventional ways and means, for example by mounting on a conventional carrier plate (not illustrated) together with other induction heating devices of the cooktop plate 111 , with the carrier plate in turn being fastened to fastening means located laterally at the border of the cooktop plate 113 .
- the heater may include a carrier on which an electrically resistance heating element is provided, optionally having an insulating layer interposed in case of a metal carrier which is made from sheet metal or the like, wherein in FIG. 4 , the carrier lies on top, and is pressed directly against the bottom side 114 of the cooktop 111 for heat transfer.
- An indicator device 120 would in this case be arranged on the upper side of the carrier, while the resistance heating element is provided on the bottom side thereof.
- the large-area indicator device 120 arranged on the upper side of the induction heating device 118 is hence directly pressed against the bottom side 114 of the cooktop plate 113 , but it is not directly fastened or bonded to it or otherwise mounted in a non-detachable manner.
- the specific structure of the indicator device 120 can be seen from FIG. 4 .
- a carrier film 123 has an adhesive label 126 on the bottom side thereof, by means of which it is bonded to the upper side of the induction heating device 118 .
- the carrier film 123 can also be a so-called Kapton film or another insulating film or insulating plate, for example, as usually placed on the upper sides of induction heating devices for pressing against the bottom side of cooktop plates.
- a paint layer 128 is located on the upper side of the carrier film 123 , for example an above mentioned thermochrome paint which, in an advantageous configuration, has a dark color shade such as dark-red in cold state. It can either be provided in a large-area manner, essentially as large as the indicator device 120 , or it may have the shape of a symbol, such as the letters “H O T” according to FIG. 3 for example. In this case, it has such properties that it is dark below a change temperature and thus cannot be perceived through the cooktop plate 113 . Above said change temperature, the fluorescent thermochrome paint 124 takes on a luminous color, such as luminous red, and is visible in the form of the symbol or writing, respectively according to FIG. 3 . In this way, it serves as a residual heat indicator.
- a luminous color such as luminous red
- the advantage of the indicator device 120 being arranged directly above the heating device 118 as can be seen in FIG. 2 is that usually, such induction heating devices having induction coils already include an insulating film on the upper side thereof, for example an above-mentioned Kapton film, or alternatively an insulating plate.
- additional components are not required, but only components which are designed in a different manner. Said components may then be provided with a printing or an adhesive label depending on the customer's preferences and the application or type series, respectively.
- Another advantage is that then a large-area residual heat indicator can be achieved which could not be implemented that well by means of the ring-shaped embodiment according to FIG. 1 .
- the maximum residual heat at the cooktop plate 113 is located in the central area centrally above the heating device, and therefore an optical residual heat indicator should consider it.
- this can be effected by means of known per se temperature distributions ranging from said central area to the lateral border area beyond the outer edge of the heating device 118 in terms of both time and space. Nevertheless, a residual heat indication directly including said central area is more precise. This also speaks in the favour of this embodiment.
- thermochrome paints may also be provided having different color change temperatures, that is to say two different types of powder including thermochrome material.
- One of them has a change color at a higher temperature, for example corresponding to a temperature on top of the cooktop plate of significantly more than 100° C., that is to say when contact is still very unsafe.
- the other change temperature may occur at a temperature corresponding to a temperature at the cooktop plate of approximately 50° C. to 70° C., that is to say the usual value for residual heat indicators, where below said temperature contact to the cooktop plate no longer implies burning risks.
- thermochrome paints may be arranged side by side.
- the one with the lower change temperature represents the word “H O T” at the bottom according to FIG. 5 .
- the fluorescent thermochrome paint having the higher change temperature can accordingly indicate “V E R Y” in intensive colors correspondingly.
- “V E R Y H O T” will be displayed by the indication device 120 , and at slightly lower temperatures but still above the limit temperature of 50° C. to 70° C., only “HOT” is displayed according to FIG. 3
- FIG. 6 shows that also a logo can be indicated instead of a writing.
- the upper part of FIG. 6 shows how the thermochrome paint layer has a particular unremarkable color shade in the cold state, such as dark blue, for example.
- the color shade changes, as in the illustration below, and gets luminous blue, for example.
- This can either be used as a temperature indication for warning purposes or as a temperature-depending operation indicator, so that in the heated state, the logo of the producer of the appliance, for example, appears luminous and is clearly discernable even through a colored cooktop plate.
- Advantageous and preferable embodiments of the disclosure are the subject of the claims below. The wording of the claims is incorporated into the content of the description by explicit reference.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Induction Heating Cooking Devices (AREA)
- Cookers (AREA)
- Electric Stoves And Ranges (AREA)
- Luminescent Compositions (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011085112A DE102011085112A1 (de) | 2011-10-24 | 2011-10-24 | Kochvorrichtung mit optischer Temperaturanzeige |
DEDE102011085112.7 | 2011-10-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130098351A1 true US20130098351A1 (en) | 2013-04-25 |
Family
ID=47137572
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/659,363 Abandoned US20130098351A1 (en) | 2011-10-24 | 2012-10-24 | Cooking Appliance |
Country Status (6)
Country | Link |
---|---|
US (1) | US20130098351A1 (ja) |
EP (1) | EP2587165B1 (ja) |
JP (1) | JP2013092358A (ja) |
DE (1) | DE102011085112A1 (ja) |
ES (1) | ES2529323T3 (ja) |
PL (1) | PL2587165T3 (ja) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016155301A1 (zh) * | 2015-03-27 | 2016-10-06 | 广东美的厨房电器制造有限公司 | 一种用于烹调设备的控制***和方法 |
CN106515185A (zh) * | 2016-10-21 | 2017-03-22 | 巢湖市伟业玻璃有限公司 | 一种钢化玻璃的制作方法及采用该方法制作的钢化玻璃 |
CN107806657A (zh) * | 2016-09-08 | 2018-03-16 | 佛山市顺德区美的电热电器制造有限公司 | 电磁炉 |
CN108353470A (zh) * | 2015-12-02 | 2018-07-31 | 伊莱克斯家用电器股份公司 | 感应烹饪灶具 |
CN110687693A (zh) * | 2019-09-20 | 2020-01-14 | 宁波东旭成新材料科技有限公司 | 一种热致变色膜 |
CN110867397A (zh) * | 2018-08-28 | 2020-03-06 | 株式会社迪思科 | 台 |
CN114001828A (zh) * | 2021-11-01 | 2022-02-01 | 珠海格力电器股份有限公司 | 烹饪器具温度测量设备、测试方法、测试装置和烹饪器具 |
US20220262213A1 (en) * | 2020-07-02 | 2022-08-18 | Cisco Technology, Inc. | Temperature indicator for optical module |
EP4175410A1 (en) | 2021-10-28 | 2023-05-03 | Electrolux Appliances Aktiebolag | Modular coil with light device |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015104304B4 (de) * | 2015-03-23 | 2022-12-08 | Miele & Cie. Kg | Anzeige für eine glaskeramische Platte |
DE102015212915A1 (de) | 2015-07-09 | 2017-01-12 | E.G.O. Elektro-Gerätebau GmbH | Kochfeld und Verfahren zur Erzeugung einer Leuchtanzeige an einem Kochfeld |
DE102015212916A1 (de) | 2015-07-09 | 2017-01-12 | E.G.O. Elektro-Gerätebau GmbH | Kochfeld |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2710274A (en) * | 1952-03-26 | 1955-06-07 | Kuehl Georg Walter | Multi-layer glass sheet |
US3590371A (en) * | 1969-12-31 | 1971-06-29 | Ppg Industries Inc | A method utilizing the color change with temperature of a material for detecting discontinuities in a conductor member embedded within a windshield |
US4032687A (en) * | 1975-12-12 | 1977-06-28 | Funstuf, Inc. | Transferable color changeable applique |
US5716679A (en) * | 1991-09-13 | 1998-02-10 | Institut Fur Neue Materialien Gemeinnutzige Gmbh | Optical elements containing nanoscaled particles and having an embossed surface and process for their preparation |
US5994374A (en) * | 1995-11-10 | 1999-11-30 | Merck Sharp & Dohme Ltd. | Substituted 1-indolylpropyl-4-benzyl-tetrahydropyridine derivatives |
US6104007A (en) * | 1998-01-30 | 2000-08-15 | Lerner; William S. | Heat alert safety device for stoves and related appliances |
US20020040901A1 (en) * | 2000-08-18 | 2002-04-11 | Keith Laken | Heated food service shelf for warming cookies and the like |
US20070267406A1 (en) * | 2006-05-18 | 2007-11-22 | Wolfgang Thimm | Use of left-handed metamaterials as a display, particularly on a hob, as well as display and display method |
US20100084852A1 (en) * | 2006-10-26 | 2010-04-08 | Cabot Corporation | Luminescent compositions, methods for making luminescent compositions and inks incorporating the same |
US20100166967A1 (en) * | 2008-12-29 | 2010-07-01 | David Michael Fasano | High gloss extended alkyd emulsion paints |
US7763832B2 (en) * | 2006-06-16 | 2010-07-27 | Schott Ag | Cook top comprising a glass ceramic plate having an opaque coating and an improved window coating on a display window on an underside of the plate |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE51633C (de) | P.GASSEN zu Köln a. Rh., Pantaleonsmühlengasse Nr. 19, und Firma JEAN HECKHAUSEN & WEIES in Köln a. Rh., Seyengasse 2 | Teigformverfahren | ||
US3781523A (en) * | 1972-03-27 | 1973-12-25 | Gen Electric | Thermochromic surface heating apparatus |
JPS628491A (ja) * | 1985-07-04 | 1987-01-16 | 三菱電機株式会社 | 誘導加熱調理器 |
GB8709051D0 (en) * | 1987-04-15 | 1987-05-20 | Emi Plc Thorn | Thermochromic temperature sensor |
US5499597A (en) * | 1994-11-01 | 1996-03-19 | Kronberg; James W. | Optical temperature indicator using thermochromic semiconductors |
JP2005322511A (ja) * | 2004-05-10 | 2005-11-17 | Toshiba Corp | 加熱調理器 |
JP2006125645A (ja) * | 2004-10-26 | 2006-05-18 | Nippon Electric Glass Co Ltd | 調理器用トッププレート |
DE102005025896B4 (de) * | 2005-05-25 | 2010-11-25 | E.G.O. Elektro-Gerätebau GmbH | Kochfeldplatte mit optischer Temperaturanzeige und mit Vorrichtung zur optischen Temperaturerfassung sowie entsprechendes Kochfeld |
FI20105303L (fi) * | 2010-03-25 | 2011-09-26 | Iittala Group Oy Ab | Lämpötilaansa muuttavan materiaalin tai välineen lämpötilaindikaattori ja menetelmä sen valmistamiseksi |
-
2011
- 2011-10-24 DE DE102011085112A patent/DE102011085112A1/de not_active Withdrawn
-
2012
- 2012-10-23 EP EP12189546.0A patent/EP2587165B1/de active Active
- 2012-10-23 PL PL12189546T patent/PL2587165T3/pl unknown
- 2012-10-23 ES ES12189546.0T patent/ES2529323T3/es active Active
- 2012-10-24 US US13/659,363 patent/US20130098351A1/en not_active Abandoned
- 2012-10-24 JP JP2012234369A patent/JP2013092358A/ja active Pending
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2710274A (en) * | 1952-03-26 | 1955-06-07 | Kuehl Georg Walter | Multi-layer glass sheet |
US3590371A (en) * | 1969-12-31 | 1971-06-29 | Ppg Industries Inc | A method utilizing the color change with temperature of a material for detecting discontinuities in a conductor member embedded within a windshield |
US4032687A (en) * | 1975-12-12 | 1977-06-28 | Funstuf, Inc. | Transferable color changeable applique |
US5716679A (en) * | 1991-09-13 | 1998-02-10 | Institut Fur Neue Materialien Gemeinnutzige Gmbh | Optical elements containing nanoscaled particles and having an embossed surface and process for their preparation |
US5994374A (en) * | 1995-11-10 | 1999-11-30 | Merck Sharp & Dohme Ltd. | Substituted 1-indolylpropyl-4-benzyl-tetrahydropyridine derivatives |
US6104007A (en) * | 1998-01-30 | 2000-08-15 | Lerner; William S. | Heat alert safety device for stoves and related appliances |
US20020040901A1 (en) * | 2000-08-18 | 2002-04-11 | Keith Laken | Heated food service shelf for warming cookies and the like |
US20070267406A1 (en) * | 2006-05-18 | 2007-11-22 | Wolfgang Thimm | Use of left-handed metamaterials as a display, particularly on a hob, as well as display and display method |
US7763832B2 (en) * | 2006-06-16 | 2010-07-27 | Schott Ag | Cook top comprising a glass ceramic plate having an opaque coating and an improved window coating on a display window on an underside of the plate |
US20100084852A1 (en) * | 2006-10-26 | 2010-04-08 | Cabot Corporation | Luminescent compositions, methods for making luminescent compositions and inks incorporating the same |
US20100166967A1 (en) * | 2008-12-29 | 2010-07-01 | David Michael Fasano | High gloss extended alkyd emulsion paints |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016155301A1 (zh) * | 2015-03-27 | 2016-10-06 | 广东美的厨房电器制造有限公司 | 一种用于烹调设备的控制***和方法 |
CN108353470A (zh) * | 2015-12-02 | 2018-07-31 | 伊莱克斯家用电器股份公司 | 感应烹饪灶具 |
CN107806657A (zh) * | 2016-09-08 | 2018-03-16 | 佛山市顺德区美的电热电器制造有限公司 | 电磁炉 |
CN106515185A (zh) * | 2016-10-21 | 2017-03-22 | 巢湖市伟业玻璃有限公司 | 一种钢化玻璃的制作方法及采用该方法制作的钢化玻璃 |
CN110867397A (zh) * | 2018-08-28 | 2020-03-06 | 株式会社迪思科 | 台 |
CN110687693A (zh) * | 2019-09-20 | 2020-01-14 | 宁波东旭成新材料科技有限公司 | 一种热致变色膜 |
US20220262213A1 (en) * | 2020-07-02 | 2022-08-18 | Cisco Technology, Inc. | Temperature indicator for optical module |
US11657684B2 (en) * | 2020-07-02 | 2023-05-23 | Cisco Technology, Inc. | Temperature indicator for optical module |
EP4175410A1 (en) | 2021-10-28 | 2023-05-03 | Electrolux Appliances Aktiebolag | Modular coil with light device |
WO2023072708A1 (en) | 2021-10-28 | 2023-05-04 | Electrolux Appliances Aktiebolag | Modular coil with light device |
CN114001828A (zh) * | 2021-11-01 | 2022-02-01 | 珠海格力电器股份有限公司 | 烹饪器具温度测量设备、测试方法、测试装置和烹饪器具 |
Also Published As
Publication number | Publication date |
---|---|
EP2587165A1 (de) | 2013-05-01 |
JP2013092358A (ja) | 2013-05-16 |
ES2529323T3 (es) | 2015-02-19 |
DE102011085112A1 (de) | 2013-04-25 |
PL2587165T3 (pl) | 2015-05-29 |
EP2587165B1 (de) | 2014-12-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20130098351A1 (en) | Cooking Appliance | |
JP6655046B2 (ja) | 発光カラー表示部を含むガラスセラミック物品 | |
CA2390458C (en) | Top plate for cooking device having electromagnetic-induction heating unit | |
EP3068192B1 (en) | Heating cooker | |
EP1596635B1 (en) | Induction heating cooler | |
KR102301541B1 (ko) | 대형 유리-세라믹 조리대 | |
KR102301540B1 (ko) | 대형 유리-세라믹 조리대 | |
JP6231581B2 (ja) | 発光表示部を有するガラスセラミック物品 | |
KR102149809B1 (ko) | 발광 디스플레이를 갖는 유리 세라믹 물품 | |
KR102256142B1 (ko) | 감온변색 재료를 포함하는 층을 갖는 시스템 | |
JP4779443B2 (ja) | 発光表示板及び加熱調理器 | |
ES2643841T3 (es) | Dispositivo de cocción y método para la visualización de la temperatura en un dispositivo de cocción | |
JP2014215018A (ja) | 調理器用トッププレート | |
CN111285616B (zh) | 包括玻璃或玻璃陶瓷衬底和涂层的板及其用途 | |
JP2008091346A (ja) | 誘導加熱調理器 | |
US20170010002A1 (en) | Hob |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: E.G.O. ELEKTRO-GERATEBAU GMBH, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:THIMM, WOLFGANG, DR.;REEL/FRAME:029678/0947 Effective date: 20121211 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |